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Adding upstream version 1.2.1.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-09 08:31:24 +01:00
parent 8d1b12293d
commit 403c1e4421
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
340 changed files with 71346 additions and 6734 deletions
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287
include/dnsjit/Makefile.am Normal file
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# Copyright (c) 2018-2021, OARC, Inc.
# All rights reserved.
#
# This file is part of dnsjit.
#
# dnsjit is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# dnsjit is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
CLEANFILES = *.gcda *.gcno *.gcov
SUBDIRS = test
AM_CFLAGS = -Werror=attributes \
-I$(srcdir) \
-I$(top_srcdir) \
-I$(top_srcdir)/include \
$(SIMD_FLAGS) $(CPUEXT_FLAGS) \
$(PTHREAD_CFLAGS) \
$(luajit_CFLAGS) \
$(liblz4_CFLAGS) $(libzstd_CFLAGS)
EXTRA_DIST = gen-manpage.lua gen-compat.lua gen-errno.sh dnsjit.1in
BUILT_SOURCES = core/compat.hh core/log_errstr.c
bin_PROGRAMS = dnsjit
dnsjit_SOURCES = dnsjit.c globals.c
dist_dnsjit_SOURCES = core.lua lib.lua input.lua filter.lua output.lua
dnsjitincludedir = $(includedir)/dnsjit
nobase_dnsjitinclude_HEADERS = globals.h version.h
lua_hobjects = core/compat.luaho
lua_objects = core.luao lib.luao input.luao filter.luao output.luao
dnsjit_LDADD = $(PTHREAD_LIBS) $(luajit_LIBS) $(liblz4_LIBS) $(libzstd_LIBS)
# C source and headers
dnsjit_SOURCES += core/channel.c core/compat.c core/file.c core/log.c core/object.c core/object/dns.c core/object/ether.c core/object/gre.c core/object/icmp6.c core/object/icmp.c core/object/ieee802.c core/object/ip6.c core/object/ip.c core/object/linuxsll.c core/object/loop.c core/object/null.c core/object/payload.c core/object/pcap.c core/object/tcp.c core/object/udp.c core/producer.c core/receiver.c core/thread.c filter/copy.c filter/ipsplit.c filter/layer.c filter/split.c filter/timing.c input/fpcap.c input/mmpcap.c input/pcap.c input/zpcap.c lib/base64url.c lib/clock.c lib/trie.c output/dnscli.c output/pcap.c output/respdiff.c output/tcpcli.c output/tlscli.c output/udpcli.c
nobase_dnsjitinclude_HEADERS += core/assert.h core/channel.h core/compat.h core/file.h core/log.h core/object/dns.h core/object/ether.h core/object/gre.h core/object.h core/object/icmp6.h core/object/icmp.h core/object/ieee802.h core/object/ip6.h core/object/ip.h core/object/linuxsll.h core/object/loop.h core/object/null.h core/object/payload.h core/object/pcap.h core/object/tcp.h core/object/udp.h core/producer.h core/receiver.h core/thread.h core/timespec.h filter/copy.h filter/ipsplit.h filter/layer.h filter/split.h filter/timing.h input/fpcap.h input/mmpcap.h input/pcap.h input/zpcap.h lib/base64url.h lib/clock.h lib/trie.h output/dnscli.h output/pcap.h output/respdiff.h output/tcpcli.h output/tlscli.h output/udpcli.h
# Lua headers
nobase_dnsjitinclude_HEADERS += core/channel.hh core/file.hh core/log.hh core/object/dns.hh core/object/ether.hh core/object/gre.hh core/object.hh core/object/icmp6.hh core/object/icmp.hh core/object/ieee802.hh core/object/ip6.hh core/object/ip.hh core/object/linuxsll.hh core/object/loop.hh core/object/null.hh core/object/payload.hh core/object/pcap.hh core/object/tcp.hh core/object/udp.hh core/producer.hh core/receiver.hh core/thread.hh core/timespec.hh filter/copy.hh filter/ipsplit.hh filter/layer.hh filter/split.hh filter/timing.hh input/fpcap.hh input/mmpcap.hh input/pcap.hh input/zpcap.hh lib/base64url.hh lib/clock.hh lib/trie.hh output/dnscli.hh output/pcap.hh output/respdiff.hh output/tcpcli.hh output/tlscli.hh output/udpcli.hh
lua_hobjects += core/channel.luaho core/file.luaho core/log.luaho core/object/dns.luaho core/object/ether.luaho core/object/gre.luaho core/object/icmp6.luaho core/object/icmp.luaho core/object/ieee802.luaho core/object/ip6.luaho core/object/ip.luaho core/object/linuxsll.luaho core/object/loop.luaho core/object.luaho core/object/null.luaho core/object/payload.luaho core/object/pcap.luaho core/object/tcp.luaho core/object/udp.luaho core/producer.luaho core/receiver.luaho core/thread.luaho core/timespec.luaho filter/copy.luaho filter/ipsplit.luaho filter/layer.luaho filter/split.luaho filter/timing.luaho input/fpcap.luaho input/mmpcap.luaho input/pcap.luaho input/zpcap.luaho lib/base64url.luaho lib/clock.luaho lib/trie.luaho output/dnscli.luaho output/pcap.luaho output/respdiff.luaho output/tcpcli.luaho output/tlscli.luaho output/udpcli.luaho
# Lua sources
dist_dnsjit_SOURCES += core/channel.lua core/compat.lua core/file.lua core/loader.lua core/log.lua core/object/dns/label.lua core/object/dns.lua core/object/dns/q.lua core/object/dns/rr.lua core/object/ether.lua core/object/gre.lua core/object/icmp6.lua core/object/icmp.lua core/object/ieee802.lua core/object/ip6.lua core/object/ip.lua core/object/linuxsll.lua core/object/loop.lua core/object.lua core/object/null.lua core/object/payload.lua core/object/pcap.lua core/objects.lua core/object/tcp.lua core/object/udp.lua core/producer.lua core/receiver.lua core/thread.lua core/timespec.lua filter/copy.lua filter/ipsplit.lua filter/layer.lua filter/split.lua filter/timing.lua input/fpcap.lua input/mmpcap.lua input/pcap.lua input/zero.lua input/zpcap.lua lib/base64url.lua lib/clock.lua lib/getopt.lua lib/ip.lua lib/parseconf.lua lib/trie/iter.lua lib/trie.lua lib/trie/node.lua output/dnscli.lua output/null.lua output/pcap.lua output/respdiff.lua output/tcpcli.lua output/tlscli.lua output/udpcli.lua
lua_objects += core/channel.luao core/compat.luao core/file.luao core/loader.luao core/log.luao core/object/dns/label.luao core/object/dns.luao core/object/dns/q.luao core/object/dns/rr.luao core/object/ether.luao core/object/gre.luao core/object/icmp6.luao core/object/icmp.luao core/object/ieee802.luao core/object/ip6.luao core/object/ip.luao core/object/linuxsll.luao core/object/loop.luao core/object.luao core/object/null.luao core/object/payload.luao core/object/pcap.luao core/objects.luao core/object/tcp.luao core/object/udp.luao core/producer.luao core/receiver.luao core/thread.luao core/timespec.luao filter/copy.luao filter/ipsplit.luao filter/layer.luao filter/split.luao filter/timing.luao input/fpcap.luao input/mmpcap.luao input/pcap.luao input/zero.luao input/zpcap.luao lib/base64url.luao lib/clock.luao lib/getopt.luao lib/ip.luao lib/parseconf.luao lib/trie/iter.luao lib/trie.luao lib/trie/node.luao output/dnscli.luao output/null.luao output/pcap.luao output/respdiff.luao output/tcpcli.luao output/tlscli.luao output/udpcli.luao
dnsjit_LDFLAGS = -Wl,-E
dnsjit_LDADD += $(lua_hobjects) $(lua_objects)
CLEANFILES += $(lua_hobjects) $(lua_objects)
man1_MANS = dnsjit.1
CLEANFILES += $(man1_MANS)
man3_MANS = dnsjit.core.3 dnsjit.lib.3 dnsjit.input.3 dnsjit.filter.3 dnsjit.output.3
man3_MANS += dnsjit.core.channel.3 dnsjit.core.compat.3 dnsjit.core.file.3 dnsjit.core.loader.3 dnsjit.core.log.3 dnsjit.core.object.3 dnsjit.core.object.dns.3 dnsjit.core.object.dns.label.3 dnsjit.core.object.dns.q.3 dnsjit.core.object.dns.rr.3 dnsjit.core.object.ether.3 dnsjit.core.object.gre.3 dnsjit.core.object.icmp.3 dnsjit.core.object.icmp6.3 dnsjit.core.object.ieee802.3 dnsjit.core.object.ip.3 dnsjit.core.object.ip6.3 dnsjit.core.object.linuxsll.3 dnsjit.core.object.loop.3 dnsjit.core.object.null.3 dnsjit.core.object.payload.3 dnsjit.core.object.pcap.3 dnsjit.core.objects.3 dnsjit.core.object.tcp.3 dnsjit.core.object.udp.3 dnsjit.core.producer.3 dnsjit.core.receiver.3 dnsjit.core.thread.3 dnsjit.core.timespec.3 dnsjit.filter.copy.3 dnsjit.filter.ipsplit.3 dnsjit.filter.layer.3 dnsjit.filter.split.3 dnsjit.filter.timing.3 dnsjit.input.fpcap.3 dnsjit.input.mmpcap.3 dnsjit.input.pcap.3 dnsjit.input.zero.3 dnsjit.input.zpcap.3 dnsjit.lib.base64url.3 dnsjit.lib.clock.3 dnsjit.lib.getopt.3 dnsjit.lib.ip.3 dnsjit.lib.parseconf.3 dnsjit.lib.trie.3 dnsjit.lib.trie.iter.3 dnsjit.lib.trie.node.3 dnsjit.output.dnscli.3 dnsjit.output.null.3 dnsjit.output.pcap.3 dnsjit.output.respdiff.3 dnsjit.output.tcpcli.3 dnsjit.output.tlscli.3 dnsjit.output.udpcli.3
CLEANFILES += *.3in $(man3_MANS)
.lua.luao:
@mkdir -p `dirname "$@"`
$(LUAJIT) -bg -n "dnsjit.`echo \"$@\" | sed 's%\..*%%' | sed 's%/%.%g'`" -t o "$<" "$@"
.luah.luaho:
@mkdir -p `dirname "$@"`
$(LUAJIT) -bg -n "dnsjit.`echo \"$@\" | sed 's%\..*%%' | sed 's%/%.%g'`_h" -t o "$<" "$@"
.hh.luah:
@mkdir -p `dirname "$@"`
@echo 'module(...,package.seeall);' > "$@"
@cat "$<" | grep '^//lua:' | sed 's%^//lua:%%' >> "$@"
@echo 'require("ffi").cdef[[' >> "$@"
@cat "$<" | grep -v '^#' >> "$@"
@echo ']]' >> "$@"
.1in.1:
sed -e 's,[@]PACKAGE_VERSION[@],$(PACKAGE_VERSION),g' \
-e 's,[@]PACKAGE_URL[@],$(PACKAGE_URL),g' \
-e 's,[@]PACKAGE_BUGREPORT[@],$(PACKAGE_BUGREPORT),g' \
< "$<" > "$@"
.3in.3:
sed -e 's,[@]PACKAGE_VERSION[@],$(PACKAGE_VERSION),g' \
-e 's,[@]PACKAGE_URL[@],$(PACKAGE_URL),g' \
-e 's,[@]PACKAGE_BUGREPORT[@],$(PACKAGE_BUGREPORT),g' \
< "$<" > "$@"
if ENABLE_GCOV
gcov-local:
for src in $(dnsjit_SOURCES); do \
gcov -x -l -r -s "$(srcdir)" "$$src"; \
done
endif
core/compat.hh: gen-compat.lua
$(LUAJIT) "$(srcdir)/gen-compat.lua" > "$@"
core/log_errstr.c: gen-errno.sh
"$(srcdir)/gen-errno.sh" > "$@"
dnsjit.core.3in: core.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core.lua" > "$@"
dnsjit.lib.3in: lib.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/lib.lua" > "$@"
dnsjit.input.3in: input.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/input.lua" > "$@"
dnsjit.filter.3in: filter.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/filter.lua" > "$@"
dnsjit.output.3in: output.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/output.lua" > "$@"
dnsjit.core.channel.3in: core/channel.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/channel.lua" > "$@"
dnsjit.core.compat.3in: core/compat.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/compat.lua" > "$@"
dnsjit.core.file.3in: core/file.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/file.lua" > "$@"
dnsjit.core.loader.3in: core/loader.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/loader.lua" > "$@"
dnsjit.core.log.3in: core/log.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/log.lua" > "$@"
dnsjit.core.object.dns.label.3in: core/object/dns/label.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/dns/label.lua" > "$@"
dnsjit.core.object.dns.3in: core/object/dns.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/dns.lua" > "$@"
dnsjit.core.object.dns.q.3in: core/object/dns/q.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/dns/q.lua" > "$@"
dnsjit.core.object.dns.rr.3in: core/object/dns/rr.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/dns/rr.lua" > "$@"
dnsjit.core.object.ether.3in: core/object/ether.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/ether.lua" > "$@"
dnsjit.core.object.gre.3in: core/object/gre.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/gre.lua" > "$@"
dnsjit.core.object.icmp6.3in: core/object/icmp6.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/icmp6.lua" > "$@"
dnsjit.core.object.icmp.3in: core/object/icmp.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/icmp.lua" > "$@"
dnsjit.core.object.ieee802.3in: core/object/ieee802.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/ieee802.lua" > "$@"
dnsjit.core.object.ip6.3in: core/object/ip6.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/ip6.lua" > "$@"
dnsjit.core.object.ip.3in: core/object/ip.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/ip.lua" > "$@"
dnsjit.core.object.linuxsll.3in: core/object/linuxsll.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/linuxsll.lua" > "$@"
dnsjit.core.object.loop.3in: core/object/loop.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/loop.lua" > "$@"
dnsjit.core.object.3in: core/object.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object.lua" > "$@"
dnsjit.core.object.null.3in: core/object/null.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/null.lua" > "$@"
dnsjit.core.object.payload.3in: core/object/payload.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/payload.lua" > "$@"
dnsjit.core.object.pcap.3in: core/object/pcap.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/pcap.lua" > "$@"
dnsjit.core.objects.3in: core/objects.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/objects.lua" > "$@"
dnsjit.core.object.tcp.3in: core/object/tcp.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/tcp.lua" > "$@"
dnsjit.core.object.udp.3in: core/object/udp.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/object/udp.lua" > "$@"
dnsjit.core.producer.3in: core/producer.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/producer.lua" > "$@"
dnsjit.core.receiver.3in: core/receiver.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/receiver.lua" > "$@"
dnsjit.core.thread.3in: core/thread.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/thread.lua" > "$@"
dnsjit.core.timespec.3in: core/timespec.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/core/timespec.lua" > "$@"
dnsjit.filter.copy.3in: filter/copy.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/filter/copy.lua" > "$@"
dnsjit.filter.ipsplit.3in: filter/ipsplit.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/filter/ipsplit.lua" > "$@"
dnsjit.filter.layer.3in: filter/layer.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/filter/layer.lua" > "$@"
dnsjit.filter.split.3in: filter/split.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/filter/split.lua" > "$@"
dnsjit.filter.timing.3in: filter/timing.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/filter/timing.lua" > "$@"
dnsjit.input.fpcap.3in: input/fpcap.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/input/fpcap.lua" > "$@"
dnsjit.input.mmpcap.3in: input/mmpcap.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/input/mmpcap.lua" > "$@"
dnsjit.input.pcap.3in: input/pcap.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/input/pcap.lua" > "$@"
dnsjit.input.zero.3in: input/zero.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/input/zero.lua" > "$@"
dnsjit.input.zpcap.3in: input/zpcap.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/input/zpcap.lua" > "$@"
dnsjit.lib.base64url.3in: lib/base64url.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/lib/base64url.lua" > "$@"
dnsjit.lib.clock.3in: lib/clock.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/lib/clock.lua" > "$@"
dnsjit.lib.getopt.3in: lib/getopt.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/lib/getopt.lua" > "$@"
dnsjit.lib.ip.3in: lib/ip.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/lib/ip.lua" > "$@"
dnsjit.lib.parseconf.3in: lib/parseconf.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/lib/parseconf.lua" > "$@"
dnsjit.lib.trie.iter.3in: lib/trie/iter.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/lib/trie/iter.lua" > "$@"
dnsjit.lib.trie.3in: lib/trie.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/lib/trie.lua" > "$@"
dnsjit.lib.trie.node.3in: lib/trie/node.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/lib/trie/node.lua" > "$@"
dnsjit.output.dnscli.3in: output/dnscli.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/output/dnscli.lua" > "$@"
dnsjit.output.null.3in: output/null.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/output/null.lua" > "$@"
dnsjit.output.pcap.3in: output/pcap.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/output/pcap.lua" > "$@"
dnsjit.output.respdiff.3in: output/respdiff.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/output/respdiff.lua" > "$@"
dnsjit.output.tcpcli.3in: output/tcpcli.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/output/tcpcli.lua" > "$@"
dnsjit.output.tlscli.3in: output/tlscli.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/output/tlscli.lua" > "$@"
dnsjit.output.udpcli.3in: output/udpcli.lua gen-manpage.lua
$(LUAJIT) "$(srcdir)/gen-manpage.lua" "$(srcdir)/output/udpcli.lua" > "$@"

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include/dnsjit/config.h.in Normal file
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/* src/config.h.in. Generated from configure.ac by autoheader. */
/* Define to 1 to support Advanced Bit Manipulation */
#undef HAVE_ABM
/* Define to 1 to support Multi-Precision Add-Carry Instruction Extensions */
#undef HAVE_ADX
/* Define to 1 to support Advanced Encryption Standard New Instruction Set
(AES-NI) */
#undef HAVE_AES
/* Support Altivec instructions */
#undef HAVE_ALTIVEC
/* Define to 1 to support Advanced Vector Extensions */
#undef HAVE_AVX
/* Define to 1 to support Advanced Vector Extensions 2 */
#undef HAVE_AVX2
/* Define to 1 to support AVX-512 Byte and Word Instructions */
#undef HAVE_AVX512_BW
/* Define to 1 to support AVX-512 Conflict Detection Instructions */
#undef HAVE_AVX512_CD
/* Define to 1 to support AVX-512 Doubleword and Quadword Instructions */
#undef HAVE_AVX512_DQ
/* Define to 1 to support AVX-512 Exponential & Reciprocal Instructions */
#undef HAVE_AVX512_ER
/* Define to 1 to support AVX-512 Foundation Extensions */
#undef HAVE_AVX512_F
/* Define to 1 to support AVX-512 Integer Fused Multiply Add Instructions */
#undef HAVE_AVX512_IFMA
/* Define to 1 to support AVX-512 Conflict Prefetch Instructions */
#undef HAVE_AVX512_PF
/* Define to 1 to support AVX-512 Vector Byte Manipulation Instructions */
#undef HAVE_AVX512_VBMI
/* Define to 1 to support AVX-512 Vector Length Extensions */
#undef HAVE_AVX512_VL
/* Define to 1 to support Bit Manipulation Instruction Set 1 */
#undef HAVE_BMI1
/* Define to 1 to support Bit Manipulation Instruction Set 2 */
#undef HAVE_BMI2
/* Define to 1 if you have the <byteswap.h> header file. */
#undef HAVE_BYTESWAP_H
/* Define to 1 if you have the <ck_pr.h> header file. */
#undef HAVE_CK_PR_H
/* Define to 1 if you have the <ck_ring.h> header file. */
#undef HAVE_CK_RING_H
/* Define to 1 if you have the `clock_nanosleep' function. */
#undef HAVE_CLOCK_NANOSLEEP
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
/* Define to 1 if you have the <endian.h> header file. */
#undef HAVE_ENDIAN_H
/* Define to 1 to support Fused Multiply-Add Extensions 3 */
#undef HAVE_FMA3
/* Define to 1 to support Fused Multiply-Add Extensions 4 */
#undef HAVE_FMA4
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define to 1 if you have the `ck' library (-lck). */
#undef HAVE_LIBCK
/* Define to 1 if you have the `gnutls' library (-lgnutls). */
#undef HAVE_LIBGNUTLS
/* Define to 1 if you have the `lmdb' library (-llmdb). */
#undef HAVE_LIBLMDB
/* Define to 1 if you have the `pcap' library (-lpcap). */
#undef HAVE_LIBPCAP
/* Define to 1 if you have the <lmdb.h> header file. */
#undef HAVE_LMDB_H
/* Use liblz4 */
#undef HAVE_LZ4
/* Define to 1 if you have the <machine/endian.h> header file. */
#undef HAVE_MACHINE_ENDIAN_H
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 to support Multimedia Extensions */
#undef HAVE_MMX
/* Define to 1 to support Memory Protection Extensions */
#undef HAVE_MPX
/* Define to 1 if you have the `nanosleep' function. */
#undef HAVE_NANOSLEEP
/* Define to 1 if you have the <net/ethernet.h> header file. */
#undef HAVE_NET_ETHERNET_H
/* Define to 1 if you have the <net/ethertypes.h> header file. */
#undef HAVE_NET_ETHERTYPES_H
/* Define to 1 if you have the `pcap_activate' function. */
#undef HAVE_PCAP_ACTIVATE
/* Define to 1 if you have the `pcap_create' function. */
#undef HAVE_PCAP_CREATE
/* Define to 1 if the system has the type `pcap_direction_t'. */
#undef HAVE_PCAP_DIRECTION_T
/* Define to 1 if you have the `pcap_open_offline_with_tstamp_precision'
function. */
#undef HAVE_PCAP_OPEN_OFFLINE_WITH_TSTAMP_PRECISION
/* Define to 1 if you have the `pcap_setdirection' function. */
#undef HAVE_PCAP_SETDIRECTION
/* Define to 1 if you have the `pcap_set_immediate_mode' function. */
#undef HAVE_PCAP_SET_IMMEDIATE_MODE
/* Define to 1 if you have the `pcap_set_tstamp_precision' function. */
#undef HAVE_PCAP_SET_TSTAMP_PRECISION
/* Define to 1 if you have the `pcap_set_tstamp_type' function. */
#undef HAVE_PCAP_SET_TSTAMP_TYPE
/* Define to 1 to support Prefetch Vector Data Into Caches WT1 */
#undef HAVE_PREFETCHWT1
/* Define if you have POSIX threads libraries and header files. */
#undef HAVE_PTHREAD
/* Have PTHREAD_PRIO_INHERIT. */
#undef HAVE_PTHREAD_PRIO_INHERIT
/* Define to 1 to support Digital Random Number Generator */
#undef HAVE_RDRND
/* Define to 1 if you have the `sched_yield' function. */
#undef HAVE_SCHED_YIELD
/* Define to 1 to support Secure Hash Algorithm Extension */
#undef HAVE_SHA
/* Define to 1 to support Streaming SIMD Extensions */
#undef HAVE_SSE
/* Define to 1 to support Streaming SIMD Extensions */
#undef HAVE_SSE2
/* Define to 1 to support Streaming SIMD Extensions 3 */
#undef HAVE_SSE3
/* Define to 1 to support Streaming SIMD Extensions 4.1 */
#undef HAVE_SSE4_1
/* Define to 1 to support Streaming SIMD Extensions 4.2 */
#undef HAVE_SSE4_2
/* Define to 1 to support AMD Streaming SIMD Extensions 4a */
#undef HAVE_SSE4a
/* Define to 1 to support Supplemental Streaming SIMD Extensions 3 */
#undef HAVE_SSSE3
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
/* Define to 1 if you have the <stdlib.h> header file. */
#undef HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#undef HAVE_STRING_H
/* Define to 1 if you have the <sys/endian.h> header file. */
#undef HAVE_SYS_ENDIAN_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/time.h> header file. */
#undef HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Support VSX instructions */
#undef HAVE_VSX
/* Define to 1 to support eXtended Operations Extensions */
#undef HAVE_XOP
/* Use libzstd */
#undef HAVE_ZSTD
/* Define to the sub-directory where libtool stores uninstalled libraries. */
#undef LT_OBJDIR
/* Name of package */
#undef PACKAGE
/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT
/* Define to the major version of this package. */
#undef PACKAGE_MAJOR_VERSION
/* Define to the minor version of this package. */
#undef PACKAGE_MINOR_VERSION
/* Define to the full name of this package. */
#undef PACKAGE_NAME
/* Define to the patch version of this package. */
#undef PACKAGE_PATCH_VERSION
/* Define to the full name and version of this package. */
#undef PACKAGE_STRING
/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME
/* Define to the home page for this package. */
#undef PACKAGE_URL
/* Define to the version of this package. */
#undef PACKAGE_VERSION
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
#undef PTHREAD_CREATE_JOINABLE
/* The size of `ck_ring_buffer_t', as computed by sizeof. */
#undef SIZEOF_CK_RING_BUFFER_T
/* The size of `ck_ring_t', as computed by sizeof. */
#undef SIZEOF_CK_RING_T
/* The size of `gnutls_certificate_credentials_t', as computed by sizeof. */
#undef SIZEOF_GNUTLS_CERTIFICATE_CREDENTIALS_T
/* The size of `gnutls_session_t', as computed by sizeof. */
#undef SIZEOF_GNUTLS_SESSION_T
/* The size of `pthread_cond_t', as computed by sizeof. */
#undef SIZEOF_PTHREAD_COND_T
/* The size of `pthread_mutex_t', as computed by sizeof. */
#undef SIZEOF_PTHREAD_MUTEX_T
/* The size of `pthread_t', as computed by sizeof. */
#undef SIZEOF_PTHREAD_T
/* The size of `struct pollfd', as computed by sizeof. */
#undef SIZEOF_STRUCT_POLLFD
/* The size of `struct sockaddr_storage', as computed by sizeof. */
#undef SIZEOF_STRUCT_SOCKADDR_STORAGE
/* The size of `void*', as computed by sizeof. */
#undef SIZEOF_VOIDP
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
#undef TIME_WITH_SYS_TIME
/* Version number of package */
#undef VERSION

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core
-- Core modules for dnsjit
--
-- Core modules for handling things like logging, DNS messages and
-- receiver/receive functionality.
-- .SS Global Variables
-- The following global variables exists in
-- .IR dnsjit .
-- .TP
-- .B arg
-- A table with the arguments given on the command line, the first will be
-- the path to the
-- .I dnsjit
-- binary, second will be the path to the
-- .IR script .
module(...,package.seeall)
-- dnsjit.core.channel (3),
-- dnsjit.core.compat (3),
-- dnsjit.core.log (3),
-- dnsjit.core.object (3),
-- dnsjit.core.objects (3),
-- dnsjit.core.producer (3),
-- dnsjit.core.receiver (3),
-- dnsjit.core.thread (3),
-- dnsjit.core.timespec (3)
return

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __dnsjit_core_assert_h
#define __dnsjit_core_assert_h
#include <dnsjit/core/log.h>
#define mlassert_self() \
if (!self) \
core_log_fatal(&_log, __FILE__, __LINE__, "self is nil")
#define glassert_self() \
if (!self) \
core_log_fatal(0, __FILE__, __LINE__, "self is nil")
#define lassert(expression, msg...) \
if (!(expression)) \
core_log_fatal(&self->_log, __FILE__, __LINE__, msg)
#define lpassert(expression, msg...) \
if (!(expression)) \
core_log_fatal(self->_log, __FILE__, __LINE__, msg)
#define mlassert(expression, msg...) \
if (!(expression)) \
core_log_fatal(&_log, __FILE__, __LINE__, msg)
#define glassert(expression, msg...) \
if (!(expression)) \
core_log_fatal(0, __FILE__, __LINE__, msg)
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/channel.h"
#include "core/assert.h"
#include <sched.h>
static core_log_t _log = LOG_T_INIT("core.channel");
static core_channel_t _defaults = {
LOG_T_INIT_OBJ("core.channel"),
0, { 0 }, 0, 0,
0, 0
};
core_log_t* core_channel_log()
{
return &_log;
}
static inline bool _is_pow2(size_t num)
{
while (num != 1) {
if (num % 2 != 0)
return false;
num = num / 2;
}
return true;
}
void core_channel_init(core_channel_t* self, size_t capacity)
{
mlassert_self();
if (capacity < 4 || !_is_pow2(capacity)) {
mlfatal("invalid capacity");
}
*self = _defaults;
self->capacity = capacity;
lfatal_oom(self->ring_buf = malloc(sizeof(ck_ring_buffer_t) * capacity));
ck_ring_init(&self->ring, capacity);
}
void core_channel_destroy(core_channel_t* self)
{
mlassert_self();
free(self->ring_buf);
}
void core_channel_put(core_channel_t* self, const void* obj)
{
mlassert_self();
lassert(self->ring_buf, "ring_buf is nil");
while (!ck_ring_enqueue_spsc(&self->ring, self->ring_buf, (void*)obj)) {
sched_yield();
}
}
int core_channel_try_put(core_channel_t* self, const void* obj)
{
mlassert_self();
lassert(self->ring_buf, "ring_buf is nil");
if (!ck_ring_enqueue_spsc(&self->ring, self->ring_buf, (void*)obj)) {
return -1;
}
return 0;
}
void* core_channel_get(core_channel_t* self)
{
void* obj = 0;
mlassert_self();
lassert(self->ring_buf, "ring_buf is nil");
while (!ck_ring_dequeue_spsc(&self->ring, self->ring_buf, &obj)) {
sched_yield();
if (ck_pr_load_int(&self->closed)) {
linfo("channel closed");
return 0;
}
}
return obj;
}
void* core_channel_try_get(core_channel_t* self)
{
void* obj = 0;
mlassert_self();
lassert(self->ring_buf, "ring_buf is nil");
if (!ck_ring_dequeue_spsc(&self->ring, self->ring_buf, &obj)) {
return 0;
}
return obj;
}
int core_channel_size(core_channel_t* self)
{
mlassert_self();
return ck_ring_size(&self->ring);
}
bool core_channel_full(core_channel_t* self)
{
mlassert_self();
/* ck_ring can only hold capacity minus one enties at a time */
if (ck_ring_size(&self->ring) < (self->capacity - 1)) {
return false;
}
return true;
}
void core_channel_close(core_channel_t* self)
{
mlassert_self();
ck_pr_store_int(&self->closed, 1);
}
core_receiver_t core_channel_receiver()
{
return (core_receiver_t)core_channel_put;
}
void core_channel_run(core_channel_t* self)
{
void* obj = 0;
mlassert_self();
lassert(self->ring_buf, "ring_buf is nil");
if (!self->recv) {
lfatal("no receiver set");
}
for (;;) {
while (!ck_ring_dequeue_spsc(&self->ring, self->ring_buf, &obj)) {
sched_yield();
if (ck_pr_load_int(&self->closed)) {
linfo("channel closed");
return;
}
}
self->recv(self->ctx, obj);
}
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/log.h>
#include <dnsjit/core/receiver.h>
#ifndef __dnsjit_core_channel_h
#define __dnsjit_core_channel_h
#if defined(__GNUC__) || defined(__SUNPRO_C)
#include "gcc/ck_cc.h"
#ifdef CK_CC_RESTRICT
#undef CK_CC_RESTRICT
#define CK_CC_RESTRICT __restrict__
#endif
#endif
#include <ck_ring.h>
#include <ck_pr.h>
#include <stdbool.h>
#include <dnsjit/core/channel.hh>
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.compat_h")
//lua:require("dnsjit.core.log")
//lua:require("dnsjit.core.receiver_h")
typedef struct core_channel {
core_log_t _log;
ck_ring_buffer_t* ring_buf;
ck_ring_t ring;
int closed;
size_t capacity;
core_receiver_t recv;
void* ctx;
} core_channel_t;
core_log_t* core_channel_log();
void core_channel_init(core_channel_t* self, size_t capacity);
void core_channel_destroy(core_channel_t* self);
void core_channel_put(core_channel_t* self, const void* obj);
int core_channel_try_put(core_channel_t* self, const void* obj);
void* core_channel_get(core_channel_t* self);
void* core_channel_try_get(core_channel_t* self);
int core_channel_size(core_channel_t* self);
bool core_channel_full(core_channel_t* self);
void core_channel_close(core_channel_t* self);
core_receiver_t core_channel_receiver();
void core_channel_run(core_channel_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.channel
-- Send data to another thread
-- local chan = require("dnsjit.core.channel").new()
-- local thr = require("dnsjit.core.thread").new()
-- thr:start(function(thr)
-- local chan = thr:pop()
-- local obj = chan:get()
-- ...
-- end)
-- thr:push(chan)
-- chan:put(...)
-- chan:close()
-- thr:stop()
--
-- A channel can be used to send data to another thread, this is done by
-- putting a pointer to the data into a wait-free and lock-free ring buffer
-- (concurrency kit).
-- The channel uses the single producer, single consumer model (SPSC) so
-- there can only be one writer and one reader.
-- .SS Attributes
-- .TP
-- int closed
-- Is 1 if the channel has been closed.
module(...,package.seeall)
require("dnsjit.core.channel_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_channel_t"
local core_channel_t
local Channel = {}
-- Create a new Channel, use the optional
-- .I capacity
-- to specify the capacity of the channel (buffer).
-- Capacity must be a power-of-two greater than or equal to 4.
-- Default capacity is 2048.
function Channel.new(capacity)
if capacity == nil then
capacity = 2048
end
local self = core_channel_t()
C.core_channel_init(self, capacity)
ffi.gc(self, C.core_channel_destroy)
return self
end
-- Return the Log object to control logging of this instance or module.
function Channel:log()
if self == nil then
return C.core_channel_log()
end
return self._log
end
-- Return information to use when sharing this object between threads.
function Channel:share()
return ffi.cast("void*", self), t_name.."*", "dnsjit.core.channel"
end
-- Put an object into the channel, if the channel is full then it will
-- stall and wait until space becomes available.
-- Object may be nil.
function Channel:put(obj)
C.core_channel_put(self, obj)
end
-- Try and put an object into the channel.
-- Returns 0 on success.
function Channel:put(obj)
C.core_channel_try_put(self, obj)
end
-- Get an object from the channel, if the channel is empty it will wait until
-- an object is available.
-- Returns nil if the channel is closed or if a nil object was explicitly put
-- into the channel.
function Channel:get()
return C.core_channel_get(self)
end
-- Try and get an object from the channel.
-- Returns nil if there was no objects to get.
function Channel:try_get()
return C.core_channel_try_get(self)
end
-- Return number of enqueued objects.
function Channel:size()
return C.core_channel_size(self)
end
-- Returns true when channel is full.
function Channel:full()
return C.core_channel_full(self)
end
-- Close the channel.
function Channel:close()
C.core_channel_close(self)
end
-- Return the C functions and context for receiving objects.
function Channel:receive()
return C.core_channel_receiver(), self
end
-- Set the receiver to pass objects to.
-- NOTE; The channel keeps no reference of the receiver, it needs to live as
-- long as the channel does.
function Channel:receiver(o)
self.recv, self.ctx = o:receive()
end
-- Retrieve all objects from the channel and send it to the receiver.
function Channel:run()
C.core_channel_run(self)
end
core_channel_t = ffi.metatype(t_name, { __index = Channel })
-- dnsjit.core.thread (3)
return Channel

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdint.h>
#include "core/compat.hh"

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __dnsjit_core_compat_h
#define __dnsjit_core_compat_h
#include <unistd.h>
#ifdef __ssize_t_defined
typedef ssize_t luajit_ssize_t;
#else
typedef long luajit_ssize_t;
#endif
#endif

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.compat
-- Cross platform compatibility support
-- require("dnsjit.core.compat_h")
--
-- This module defines various system structures so they can be exposed into
-- Lua but not really used. The size is generated at compile time to match
-- that of the structures on the platform.
-- .SS Structures
-- .TP
-- pthread_t
-- .TP
-- pthread_cond_t
-- .TP
-- pthread_mutex_t
-- .TP
-- struct sockaddr_storage
-- .TP
-- ck_ring_t
-- .TP
-- ck_ring_buffer_t
module(...,package.seeall)
require("dnsjit.core.compat_h")

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/file.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
int core_file_exists(const char* filename)
{
struct stat s;
if (stat(filename, &s)) {
return 1;
}
return 0;
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __dnsjit_core_file_h
#define __dnsjit_core_file_h
#include <dnsjit/core/file.hh>
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
int core_file_exists(const char*);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.file
-- OS file operations
-- require("dnsjit.core.file")
-- local ffi = require("ffi")
-- if ffi.C.core_file_exists("path/file") == 0 then
-- ...
-- end
--
-- Module that exposes some file operations that are missing from Lua.
-- .SS C functions
-- .TP
-- core_file_exists(path/filename)
-- Function that takes a string and uses
-- .B stat()
-- to check if that path/filename exists.
-- Returns zero if it exists.
module(...,package.seeall)
require("dnsjit.core.file_h")

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.loader
-- Dynamic library loader
-- local loader = require("dnsjit.core.loader")
-- loader.load("example-input-zero/zero")
--
-- Module for loading dynamic libraries (.so) in more ways then LuaJIT can.
-- This is mainly used in external modules.
module(...,package.seeall)
require("dnsjit.core.file")
local ffi = require("ffi")
local C = ffi.C
local Loader = {}
-- Search
-- .B package.cpath
-- for the given name and load the first found.
-- If
-- .B global
-- is true (default true if not given) then the loaded symbols will also
-- be available globally.
-- Returns the loaded C library as per
-- .BR ffi.load() .
-- .br
-- The
-- .B ?
-- in each path of
-- .B package.cpath
-- will be replace by the given name, so usually the ".so" part of the
-- library does not need to be given.
-- See
-- .I package.cpath
-- and
-- .I package.loaders
-- in Lua 5.1 for more information.
function Loader.load(name, global)
if global ~= false then
global = true
end
for path in string.gmatch(package.cpath, "[^;]+") do
path = path:gsub("?", name)
if C.core_file_exists(path) == 0 then
return ffi.load(path, global)
end
end
return ffi.load(name)
end
return Loader

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/log.h"
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
static core_log_t _log = LOG_T_INIT("core");
void core_log_debug(const core_log_t* l, const char* file, size_t line, const char* msg, ...)
{
char buf[512];
va_list ap;
if (!l) {
if (_log.settings.debug != 3) {
return;
}
} else {
if (l->settings.debug) {
if (l->settings.debug != 3) {
return;
}
} else if (l->module && l->module->debug) {
if (l->module->debug != 3) {
return;
}
} else if (_log.settings.debug != 3) {
return;
}
}
va_start(ap, msg);
vsnprintf(buf, sizeof(buf), msg, ap);
va_end(ap);
buf[sizeof(buf) - 1] = 0;
for (;;) {
if (!l) {
if (_log.settings.display_file_line != 3) {
break;
}
} else {
if (l->settings.display_file_line) {
if (l->settings.display_file_line != 3) {
break;
}
} else if (l->module && l->module->display_file_line) {
if (l->module->display_file_line != 3) {
break;
}
} else if (_log.settings.display_file_line != 3) {
break;
}
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%zu] %s[%p] debug: %s\n", file, line, l->name, l, buf);
return;
}
fprintf(stderr, "%s[%zu] %s debug: %s\n", file, line, l->name, buf);
return;
}
fprintf(stderr, "%s[%zu] %s debug: %s\n", file, line, _log.name, buf);
return;
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%p] debug: %s\n", l->name, l, buf);
return;
}
fprintf(stderr, "%s debug: %s\n", l->name, buf);
return;
}
fprintf(stderr, "%s debug: %s\n", _log.name, buf);
}
void core_log_info(const core_log_t* l, const char* file, size_t line, const char* msg, ...)
{
char buf[512];
va_list ap;
if (!l) {
if (_log.settings.info != 3) {
return;
}
} else {
if (l->settings.info) {
if (l->settings.info != 3) {
return;
}
} else if (l->module && l->module->info) {
if (l->module->info != 3) {
return;
}
} else if (_log.settings.info != 3) {
return;
}
}
va_start(ap, msg);
vsnprintf(buf, sizeof(buf), msg, ap);
va_end(ap);
buf[sizeof(buf) - 1] = 0;
for (;;) {
if (!l) {
if (_log.settings.display_file_line != 3) {
break;
}
} else {
if (l->settings.display_file_line) {
if (l->settings.display_file_line != 3) {
break;
}
} else if (l->module && l->module->display_file_line) {
if (l->module->display_file_line != 3) {
break;
}
} else if (_log.settings.display_file_line != 3) {
break;
}
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%zu] %s[%p] info: %s\n", file, line, l->name, l, buf);
return;
}
fprintf(stderr, "%s[%zu] %s info: %s\n", file, line, l->name, buf);
return;
}
fprintf(stderr, "%s[%zu] %s info: %s\n", file, line, _log.name, buf);
return;
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%p] info: %s\n", l->name, l, buf);
return;
}
fprintf(stderr, "%s info: %s\n", l->name, buf);
return;
}
fprintf(stderr, "%s info: %s\n", _log.name, buf);
}
void core_log_notice(const core_log_t* l, const char* file, size_t line, const char* msg, ...)
{
char buf[512];
va_list ap;
if (!l) {
if (_log.settings.notice != 3) {
return;
}
} else {
if (l->settings.notice) {
if (l->settings.notice != 3) {
return;
}
} else if (l->module && l->module->notice) {
if (l->module->notice != 3) {
return;
}
} else if (_log.settings.notice != 3) {
return;
}
}
va_start(ap, msg);
vsnprintf(buf, sizeof(buf), msg, ap);
va_end(ap);
buf[sizeof(buf) - 1] = 0;
for (;;) {
if (!l) {
if (_log.settings.display_file_line != 3) {
break;
}
} else {
if (l->settings.display_file_line) {
if (l->settings.display_file_line != 3) {
break;
}
} else if (l->module && l->module->display_file_line) {
if (l->module->display_file_line != 3) {
break;
}
} else if (_log.settings.display_file_line != 3) {
break;
}
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%zu] %s[%p] notice: %s\n", file, line, l->name, l, buf);
return;
}
fprintf(stderr, "%s[%zu] %s notice: %s\n", file, line, l->name, buf);
return;
}
fprintf(stderr, "%s[%zu] %s notice: %s\n", file, line, _log.name, buf);
return;
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%p] notice: %s\n", l->name, l, buf);
return;
}
fprintf(stderr, "%s notice: %s\n", l->name, buf);
return;
}
fprintf(stderr, "%s notice: %s\n", _log.name, buf);
}
void core_log_warning(const core_log_t* l, const char* file, size_t line, const char* msg, ...)
{
char buf[512];
va_list ap;
if (!l) {
if (_log.settings.warning != 3) {
return;
}
} else {
if (l->settings.warning) {
if (l->settings.warning != 3) {
return;
}
} else if (l->module && l->module->warning) {
if (l->module->warning != 3) {
return;
}
} else if (_log.settings.warning != 3) {
return;
}
}
va_start(ap, msg);
vsnprintf(buf, sizeof(buf), msg, ap);
va_end(ap);
buf[sizeof(buf) - 1] = 0;
for (;;) {
if (!l) {
if (_log.settings.display_file_line != 3) {
break;
}
} else {
if (l->settings.display_file_line) {
if (l->settings.display_file_line != 3) {
break;
}
} else if (l->module && l->module->display_file_line) {
if (l->module->display_file_line != 3) {
break;
}
} else if (_log.settings.display_file_line != 3) {
break;
}
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%zu] %s[%p] warning: %s\n", file, line, l->name, l, buf);
return;
}
fprintf(stderr, "%s[%zu] %s warning: %s\n", file, line, l->name, buf);
return;
}
fprintf(stderr, "%s[%zu] %s warning: %s\n", file, line, _log.name, buf);
return;
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%p] warning: %s\n", l->name, l, buf);
return;
}
fprintf(stderr, "%s warning: %s\n", l->name, buf);
return;
}
fprintf(stderr, "%s warning: %s\n", _log.name, buf);
}
void core_log_critical(const core_log_t* l, const char* file, size_t line, const char* msg, ...)
{
char buf[512];
va_list ap;
va_start(ap, msg);
vsnprintf(buf, sizeof(buf), msg, ap);
va_end(ap);
buf[sizeof(buf) - 1] = 0;
for (;;) {
if (!l) {
if (_log.settings.display_file_line != 3) {
break;
}
} else {
if (l->settings.display_file_line) {
if (l->settings.display_file_line != 3) {
break;
}
} else if (l->module && l->module->display_file_line) {
if (l->module->display_file_line != 3) {
break;
}
} else if (_log.settings.display_file_line != 3) {
break;
}
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%zu] %s[%p] critical: %s\n", file, line, l->name, l, buf);
return;
}
fprintf(stderr, "%s[%zu] %s critical: %s\n", file, line, l->name, buf);
return;
}
fprintf(stderr, "%s[%zu] %s critical: %s\n", file, line, _log.name, buf);
return;
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%p] critical: %s\n", l->name, l, buf);
return;
}
fprintf(stderr, "%s critical: %s\n", l->name, buf);
return;
}
fprintf(stderr, "%s critical: %s\n", _log.name, buf);
}
void core_log_fatal(const core_log_t* l, const char* file, size_t line, const char* msg, ...)
{
char buf[512];
va_list ap;
va_start(ap, msg);
vsnprintf(buf, sizeof(buf), msg, ap);
va_end(ap);
buf[sizeof(buf) - 1] = 0;
for (;;) {
if (!l) {
if (_log.settings.display_file_line != 3) {
break;
}
} else {
if (l->settings.display_file_line) {
if (l->settings.display_file_line != 3) {
break;
}
} else if (l->module && l->module->display_file_line) {
if (l->module->display_file_line != 3) {
break;
}
} else if (_log.settings.display_file_line != 3) {
break;
}
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%zu] %s[%p] fatal: %s\n", file, line, l->name, l, buf);
exit(1);
}
fprintf(stderr, "%s[%zu] %s fatal: %s\n", file, line, l->name, buf);
exit(1);
}
fprintf(stderr, "%s[%zu] %s fatal: %s\n", file, line, _log.name, buf);
exit(1);
}
if (l) {
if (l->is_obj) {
fprintf(stderr, "%s[%p] fatal: %s\n", l->name, l, buf);
exit(1);
}
fprintf(stderr, "%s fatal: %s\n", l->name, buf);
exit(1);
}
fprintf(stderr, "%s fatal: %s\n", _log.name, buf);
exit(1);
}
core_log_t* core_log_log()
{
return &_log;
}
#include "core/log_errstr.c"

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __dnsjit_core_log_h
#define __dnsjit_core_log_h
#include <stdlib.h>
#include <errno.h>
#include <stdint.h>
#define LOG_SETTINGS_T_INIT \
{ \
0, 0, 0, 0, 0 \
}
#define LOG_T_INIT(name) \
{ \
name, 0, LOG_SETTINGS_T_INIT, 0 \
}
#define LOG_T_INIT_OBJ(name) \
{ \
name, 1, LOG_SETTINGS_T_INIT, &_log.settings \
}
#include <dnsjit/core/log.hh>
#ifdef DNSJIT_NO_LOGGING
#define ldebug(msg...)
#define linfo(msg...)
#define lnotice(msg...)
#define lwarning(msg...)
#define lcritical(msg...)
#define lpdebug(msg...)
#define lpinfo(msg...)
#define lpnotice(msg...)
#define lpwarning(msg...)
#define lpcritical(msg...)
#define mldebug(msg...)
#define mlinfo(msg...)
#define mlnotice(msg...)
#define mlwarning(msg...)
#define mlcritical(msg...)
#define gldebug(msg...)
#define glinfo(msg...)
#define glnotice(msg...)
#define glwarning(msg...)
#define glcritical(msg...)
#else
#define ldebug(msg...) core_log_debug(&self->_log, __FILE__, __LINE__, msg)
#define linfo(msg...) core_log_info(&self->_log, __FILE__, __LINE__, msg)
#define lnotice(msg...) core_log_notice(&self->_log, __FILE__, __LINE__, msg)
#define lwarning(msg...) core_log_warning(&self->_log, __FILE__, __LINE__, msg)
#define lcritical(msg...) core_log_critical(&self->_log, __FILE__, __LINE__, msg)
#define lpdebug(msg...) core_log_debug(self->_log, __FILE__, __LINE__, msg)
#define lpinfo(msg...) core_log_info(self->_log, __FILE__, __LINE__, msg)
#define lpnotice(msg...) core_log_notice(self->_log, __FILE__, __LINE__, msg)
#define lpwarning(msg...) core_log_warning(self->_log, __FILE__, __LINE__, msg)
#define lpcritical(msg...) core_log_critical(self->_log, __FILE__, __LINE__, msg)
#define mldebug(msg...) core_log_debug(&_log, __FILE__, __LINE__, msg)
#define mlinfo(msg...) core_log_info(&_log, __FILE__, __LINE__, msg)
#define mlnotice(msg...) core_log_notice(&_log, __FILE__, __LINE__, msg)
#define mlwarning(msg...) core_log_warning(&_log, __FILE__, __LINE__, msg)
#define mlcritical(msg...) core_log_critical(&_log, __FILE__, __LINE__, msg)
#define gldebug(msg...) core_log_debug(0, __FILE__, __LINE__, msg)
#define glinfo(msg...) core_log_info(0, __FILE__, __LINE__, msg)
#define glnotice(msg...) core_log_notice(0, __FILE__, __LINE__, msg)
#define glwarning(msg...) core_log_warning(0, __FILE__, __LINE__, msg)
#define glcritical(msg...) core_log_critical(0, __FILE__, __LINE__, msg)
#endif
#define lfatal(msg...) core_log_fatal(&self->_log, __FILE__, __LINE__, msg)
#define lpfatal(msg...) core_log_fatal(self->_log, __FILE__, __LINE__, msg)
#define mlfatal(msg...) core_log_fatal(&_log, __FILE__, __LINE__, msg)
#define glfatal(msg...) core_log_fatal(0, __FILE__, __LINE__, msg)
#define lfatal_oom(expression) \
if (!(expression)) \
core_log_fatal(&self->_log, __FILE__, __LINE__, "out of memory")
#define lpfatal_oom(expression) \
if (!(expression)) \
core_log_fatal(self->_log, __FILE__, __LINE__, "out of memory")
#define mlfatal_oom(expression) \
if (!(expression)) \
core_log_fatal(&_log, __FILE__, __LINE__, "out of memory")
#define glfatal_oom(expression) \
if (!(expression)) \
core_log_fatal(0, __FILE__, __LINE__, "out of memory")
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
typedef struct core_log_settings {
uint8_t debug;
uint8_t info;
uint8_t notice;
uint8_t warning;
uint8_t display_file_line;
} core_log_settings_t;
typedef struct core_log {
char name[32];
uint8_t is_obj;
core_log_settings_t settings;
const core_log_settings_t* module;
} core_log_t;
void core_log_debug(const core_log_t* l, const char* file, size_t line, const char* msg, ...);
void core_log_info(const core_log_t* l, const char* file, size_t line, const char* msg, ...);
void core_log_notice(const core_log_t* l, const char* file, size_t line, const char* msg, ...);
void core_log_warning(const core_log_t* l, const char* file, size_t line, const char* msg, ...);
void core_log_critical(const core_log_t* l, const char* file, size_t line, const char* msg, ...);
void core_log_fatal(const core_log_t* l, const char* file, size_t line, const char* msg, ...);
const char* core_log_errstr(int err);
core_log_t* core_log_log();

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.log
-- Core logging facility
-- .SS Usage to control global log level
-- local log = require("dnsjit.core.log")
-- log.enable("all")
-- log.disable("debug")
-- .SS Usage to control module log level
-- local example = require("example") -- Example as below
-- example.log():enable("all")
-- example.log():disable("debug")
-- .SS Usage to control object instance log level
-- local example = require("example") -- Example as below
-- local obj = example.new()
-- obj:log():enable("all")
-- obj:log():disable("debug")
-- .SS Usage in C module
-- .B NOTE
-- naming of variables and module only globals are required to exactly as
-- described in order for the macros to work;
-- .B self
-- is the pointer to the object instance,
-- .B self->_log
-- is the object instance logging configuration struct,
-- .B _log
-- is the module logging configuration struct.
-- .LP
-- Include logging:
-- #include "core/log.h"
-- .LP
-- Add the logging struct to the module struct:
-- typedef struct example {
-- core_log_t _log;
-- ...
-- } example_t;
-- .LP
-- Add a module logging configuration and a struct default:
-- static core_log_t _log = LOG_T_INIT("example");
-- static example_t _defaults = {
-- LOG_T_INIT_OBJ("example"),
-- ...
-- };
-- .LP
-- Use new/free and/or init/destroy functions (depends if you create the
-- object in Lua or not):
-- example_t* example_new() {
-- example_t* self = calloc(1, sizeof(example_t));
-- .
-- *self = _defaults;
-- ldebug("new()");
-- .
-- return self;
-- }
-- .
-- void example_free(example_t* self) {
-- ldebug("free()");
-- free(self);
-- }
-- .
-- int example_init(example_t* self) {
-- *self = _defaults;
-- .
-- ldebug("init()");
-- .
-- return 0;
-- }
-- .
-- void example_destroy(example_t* self) {
-- ldebug("destroy()");
-- ...
-- }
-- .LP
-- In the Lua part of the C module you need to create a function that
-- returns either the object instance Log or the modules Log.
-- .LP
-- Add C function to get module only Log:
-- core_log_t* example_log() {
-- return &_log;
-- }
-- .LP
-- For the structures metatable add the following function:
-- local ffi = require("ffi")
-- local C = ffi.C
-- .
-- function Example:log()
-- if self == nil then
-- return C.example_log()
-- end
-- return self._log
-- end
-- .SS Usage in pure Lua module
-- local log = require("dnsjit.core.log")
-- local ffi = require("ffi")
-- local C = ffi.C
-- .
-- local Example = {}
-- local module_log = log.new("example")
-- .
-- function Example.new()
-- local self = setmetatable({
-- _log = log.new("example", module_log),
-- }, { __index = Example })
-- .
-- self._log:debug("new()")
-- .
-- return self
-- end
-- .
-- function Example:log()
-- if self == nil then
-- return module_log
-- end
-- return self._log
-- end
--
-- Core logging facility used by all modules.
-- .SS Log levels
-- .TP
-- all
-- Keyword to enable/disable all changeable log levels.
-- .TP
-- debug
-- Used for debug information.
-- .TP
-- info
-- Used for informational processing messages.
-- .TP
-- notice
-- Used for messages of that may have impact on processing.
-- .TP
-- warning
-- Used for messages that has impact on processing.
-- .TP
-- critical
-- Used for messages that have severe impact on processing, this level can
-- not be disabled.
-- .TP
-- fatal
-- Used to display a message before stopping all processing and existing,
-- this level can not be disabled.
-- .SS C macros
-- .TP
-- Object instance macros
-- The following macros uses
-- .IR &self->_log :
-- .BR ldebug(msg...) ,
-- .BR linfo(msg...) ,
-- .BR lnotice(msg...) ,
-- .BR lwarning(msg...) ,
-- .BR lcritical(msg...) ,
-- .BR lfatal(msg...) .
-- .TP
-- Object pointer instance macros
-- The following macros uses
-- .IR self->_log :
-- .BR lpdebug(msg...) ,
-- .BR lpinfo(msg...) ,
-- .BR lpnotice(msg...) ,
-- .BR lpwarning(msg...) ,
-- .BR lpcritical(msg...) ,
-- .BR lpfatal(msg...) .
-- .TP
-- Module macros
-- The following macros uses
-- .IR &_log :
-- .BR mldebug(msg...) ,
-- .BR mlinfo(msg...) ,
-- .BR mlnotice(msg...) ,
-- .BR mlwarning(msg...) ,
-- .BR mlcritical(msg...) ,
-- .BR mlfatal(msg...) .
-- .TP
-- Global macros
-- The following macros uses the global logging configuration:
-- .BR gldebug(msg...) ,
-- .BR glinfo(msg...) ,
-- .BR glnotice(msg...) ,
-- .BR glwarning(msg...) ,
-- .BR glcritical(msg...) ,
-- .BR glfatal(msg...) .
module(...,package.seeall)
require("dnsjit.core.log_h")
local ffi = require("ffi")
local C = ffi.C
local L = C.core_log_log()
local t_name = "core_log_t"
local core_log_t
local Log = {}
-- Create a new Log object with the given module
-- .I name
-- and an optional shared
-- .I module
-- Log object.
function Log.new(name, module)
local self
if ffi.istype(t_name, module) then
self = core_log_t({ is_obj = 1, module = module.settings })
else
self = core_log_t()
end
local len = #name
if len > 31 then
len = 31
end
ffi.copy(self.name, name, len)
self.name[len] = 0
return self
end
-- Enable specified log level.
function Log:enable(level)
if not ffi.istype(t_name, self) then
level = self
self = L
end
if level == "all" then
self.settings.debug = 3
self.settings.info = 3
self.settings.notice = 3
self.settings.warning = 3
elseif level == "debug" then
self.settings.debug = 3
elseif level == "info" then
self.settings.info = 3
elseif level == "notice" then
self.settings.notice = 3
elseif level == "warning" then
self.settings.warning = 3
else
error("invalid log level: "..level)
end
end
-- Disable specified log level.
function Log:disable(level)
if not ffi.istype(t_name, self) then
level = self
self = L
end
if level == "all" then
self.settings.debug = 2
self.settings.info = 2
self.settings.notice = 2
self.settings.warning = 2
elseif level == "debug" then
self.settings.debug = 2
elseif level == "info" then
self.settings.info = 2
elseif level == "notice" then
self.settings.notice = 2
elseif level == "warning" then
self.settings.warning = 2
else
error("invalid log level: "..level)
end
end
-- Clear specified log level, which means it will revert back to default
-- or inherited settings.
function Log:clear(level)
if not ffi.istype(t_name, self) then
level = self
self = L
end
if level == "all" then
self.settings.debug = 0
self.settings.info = 0
self.settings.notice = 0
self.settings.warning = 0
elseif level == "debug" then
self.settings.debug = 0
elseif level == "info" then
self.settings.info = 0
elseif level == "notice" then
self.settings.notice = 0
elseif level == "warning" then
self.settings.warning = 0
else
error("invalid log level: "..level)
end
end
-- Enable or disable the displaying of file and line for messages.
function Log:display_file_line(bool)
if not ffi.istype(t_name, self) then
bool = self
self = L
end
if bool == true then
self.settings.display_file_line = 3
else
self.settings.display_file_line = 0
end
end
-- Convert error number to its text representation.
function Log.errstr(errno)
return ffi.string(C.core_log_errstr(errno))
end
-- Generate a debug message.
function Log.debug(self, ...)
local format
if not ffi.istype(t_name, self) then
format = self
self = nil
end
if not self then
if L.settings.debug ~= 3 then
return
end
else
if self.settings.debug ~= 0 then
if self.settings.debug ~= 3 then
return
end
elseif self.module ~= nil and self.module.debug ~= 0 then
if self.module.debug ~= 3 then
return
end
elseif L.settings.debug ~= 3 then
return
end
end
while true do
if not self then
if L.settings.display_file_line ~= 3 then
break
end
else
if self.settings.display_file_line ~= 0 then
if self.settings.display_file_line ~= 3 then
break
end
elseif self.module ~= nil and self.module.display_file_line ~= 0 then
if self.module.display_file_line ~= 3 then
break
end
elseif L.settings.display_file_line ~= 3 then
break
end
end
local info = debug.getinfo(2, "S")
if format then
C.core_log_debug(self, info.source, info.linedefined, format, ...)
return
end
C.core_log_debug(self, info.source, info.linedefined, ...)
return
end
if format then
C.core_log_debug(self, nil, 0, format, ...)
return
end
C.core_log_debug(self, nil, 0, ...)
end
-- Generate an info message.
function Log.info(self, ...)
local format
if not ffi.istype(t_name, self) then
format = self
self = nil
end
if not self then
if L.settings.info ~= 3 then
return
end
else
if self.settings.info ~= 0 then
if self.settings.info ~= 3 then
return
end
elseif self.module ~= nil and self.module.info ~= 0 then
if self.module.info ~= 3 then
return
end
elseif L.settings.info ~= 3 then
return
end
end
while true do
if not self then
if L.settings.display_file_line ~= 3 then
break
end
else
if self.settings.display_file_line ~= 0 then
if self.settings.display_file_line ~= 3 then
break
end
elseif self.module ~= nil and self.module.display_file_line ~= 0 then
if self.module.display_file_line ~= 3 then
break
end
elseif L.settings.display_file_line ~= 3 then
break
end
end
local info = debug.getinfo(2, "S")
if format then
C.core_log_info(self, info.source, info.linedefined, format, ...)
return
end
C.core_log_info(self, info.source, info.linedefined, ...)
return
end
if format then
C.core_log_info(self, nil, 0, format, ...)
return
end
C.core_log_info(self, nil, 0, ...)
end
-- Generate a notice message.
function Log.notice(self, ...)
local format
if not ffi.istype(t_name, self) then
format = self
self = nil
end
if not self then
if L.settings.notice ~= 3 then
return
end
else
if self.settings.notice ~= 0 then
if self.settings.notice ~= 3 then
return
end
elseif self.module ~= nil and self.module.notice ~= 0 then
if self.module.notice ~= 3 then
return
end
elseif L.settings.notice ~= 3 then
return
end
end
while true do
if not self then
if L.settings.display_file_line ~= 3 then
break
end
else
if self.settings.display_file_line ~= 0 then
if self.settings.display_file_line ~= 3 then
break
end
elseif self.module ~= nil and self.module.display_file_line ~= 0 then
if self.module.display_file_line ~= 3 then
break
end
elseif L.settings.display_file_line ~= 3 then
break
end
end
local info = debug.getinfo(2, "S")
if format then
C.core_log_notice(self, info.source, info.linedefined, format, ...)
return
end
C.core_log_notice(self, info.source, info.linedefined, ...)
return
end
if format then
C.core_log_notice(self, nil, 0, format, ...)
return
end
C.core_log_notice(self, nil, 0, ...)
end
-- Generate a warning message.
function Log.warning(self, ...)
local format
if not ffi.istype(t_name, self) then
format = self
self = nil
end
if not self then
if L.settings.warning ~= 3 then
return
end
else
if self.settings.warning ~= 0 then
if self.settings.warning ~= 3 then
return
end
elseif self.module ~= nil and self.module.warning ~= 0 then
if self.module.warning ~= 3 then
return
end
elseif L.settings.warning ~= 3 then
return
end
end
while true do
if not self then
if L.settings.display_file_line ~= 3 then
break
end
else
if self.settings.display_file_line ~= 0 then
if self.settings.display_file_line ~= 3 then
break
end
elseif self.module ~= nil and self.module.display_file_line ~= 0 then
if self.module.display_file_line ~= 3 then
break
end
elseif L.settings.display_file_line ~= 3 then
break
end
end
local info = debug.getinfo(2, "S")
if format then
C.core_log_warning(self, info.source, info.linedefined, format, ...)
return
end
C.core_log_warning(self, info.source, info.linedefined, ...)
return
end
if format then
C.core_log_warning(self, nil, 0, format, ...)
return
end
C.core_log_warning(self, nil, 0, ...)
end
-- Generate a critical message.
function Log.critical(self, ...)
local format
if not ffi.istype(t_name, self) then
format = self
self = nil
end
while true do
if not self then
if L.settings.display_file_line ~= 3 then
break
end
else
if self.settings.display_file_line ~= 0 then
if self.settings.display_file_line ~= 3 then
break
end
elseif self.module ~= nil and self.module.display_file_line ~= 0 then
if self.module.display_file_line ~= 3 then
break
end
elseif L.settings.display_file_line ~= 3 then
break
end
end
local info = debug.getinfo(2, "S")
if format then
C.core_log_critical(self, info.source, info.linedefined, format, ...)
return
end
C.core_log_critical(self, info.source, info.linedefined, ...)
return
end
if format then
C.core_log_critical(self, nil, 0, format, ...)
return
end
C.core_log_critical(self, nil, 0, ...)
end
-- Generate a fatal message.
function Log.fatal(self, ...)
local format
if not ffi.istype(t_name, self) then
format = self
self = nil
end
while true do
if not self then
if L.settings.display_file_line ~= 3 then
break
end
else
if self.settings.display_file_line ~= 0 then
if self.settings.display_file_line ~= 3 then
break
end
elseif self.module ~= nil and self.module.display_file_line ~= 0 then
if self.module.display_file_line ~= 3 then
break
end
elseif L.settings.display_file_line ~= 3 then
break
end
end
local info = debug.getinfo(2, "S")
if format then
C.core_log_fatal(self, info.source, info.linedefined, format, ...)
return
end
C.core_log_fatal(self, info.source, info.linedefined, ...)
return
end
if format then
C.core_log_fatal(self, nil, 0, format, ...)
return
end
C.core_log_fatal(self, nil, 0, ...)
end
core_log_t = ffi.metatype(t_name, { __index = Log })
return Log

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object.h"
#include "core/assert.h"
#include "core/object/pcap.h"
#include "core/object/ether.h"
#include "core/object/null.h"
#include "core/object/loop.h"
#include "core/object/linuxsll.h"
#include "core/object/ieee802.h"
#include "core/object/gre.h"
#include "core/object/ip.h"
#include "core/object/ip6.h"
#include "core/object/icmp.h"
#include "core/object/icmp6.h"
#include "core/object/udp.h"
#include "core/object/tcp.h"
#include "core/object/payload.h"
#include "core/object/dns.h"
core_object_t* core_object_copy(const core_object_t* self)
{
glassert_self();
switch (self->obj_type) {
case CORE_OBJECT_PCAP:
return (core_object_t*)core_object_pcap_copy((core_object_pcap_t*)self);
case CORE_OBJECT_ETHER:
return (core_object_t*)core_object_ether_copy((core_object_ether_t*)self);
case CORE_OBJECT_NULL:
return (core_object_t*)core_object_null_copy((core_object_null_t*)self);
case CORE_OBJECT_LOOP:
return (core_object_t*)core_object_loop_copy((core_object_loop_t*)self);
case CORE_OBJECT_LINUXSLL:
return (core_object_t*)core_object_linuxsll_copy((core_object_linuxsll_t*)self);
case CORE_OBJECT_IEEE802:
return (core_object_t*)core_object_ieee802_copy((core_object_ieee802_t*)self);
case CORE_OBJECT_GRE:
return (core_object_t*)core_object_gre_copy((core_object_gre_t*)self);
case CORE_OBJECT_IP:
return (core_object_t*)core_object_ip_copy((core_object_ip_t*)self);
case CORE_OBJECT_IP6:
return (core_object_t*)core_object_ip6_copy((core_object_ip6_t*)self);
case CORE_OBJECT_ICMP:
return (core_object_t*)core_object_icmp_copy((core_object_icmp_t*)self);
case CORE_OBJECT_ICMP6:
return (core_object_t*)core_object_icmp6_copy((core_object_icmp6_t*)self);
case CORE_OBJECT_UDP:
return (core_object_t*)core_object_udp_copy((core_object_udp_t*)self);
case CORE_OBJECT_TCP:
return (core_object_t*)core_object_tcp_copy((core_object_tcp_t*)self);
case CORE_OBJECT_PAYLOAD:
return (core_object_t*)core_object_payload_copy((core_object_payload_t*)self);
case CORE_OBJECT_DNS:
return (core_object_t*)core_object_dns_copy((core_object_dns_t*)self);
default:
glfatal("unknown type %d", self->obj_type);
}
return 0;
}
void core_object_free(core_object_t* self)
{
glassert_self();
switch (self->obj_type) {
case CORE_OBJECT_PCAP:
core_object_pcap_free((core_object_pcap_t*)self);
break;
case CORE_OBJECT_ETHER:
core_object_ether_free((core_object_ether_t*)self);
break;
case CORE_OBJECT_NULL:
core_object_null_free((core_object_null_t*)self);
break;
case CORE_OBJECT_LOOP:
core_object_loop_free((core_object_loop_t*)self);
break;
case CORE_OBJECT_LINUXSLL:
core_object_linuxsll_free((core_object_linuxsll_t*)self);
break;
case CORE_OBJECT_IEEE802:
core_object_ieee802_free((core_object_ieee802_t*)self);
break;
case CORE_OBJECT_GRE:
core_object_gre_free((core_object_gre_t*)self);
break;
case CORE_OBJECT_IP:
core_object_ip_free((core_object_ip_t*)self);
break;
case CORE_OBJECT_IP6:
core_object_ip6_free((core_object_ip6_t*)self);
break;
case CORE_OBJECT_ICMP:
core_object_icmp_free((core_object_icmp_t*)self);
break;
case CORE_OBJECT_ICMP6:
core_object_icmp6_free((core_object_icmp6_t*)self);
break;
case CORE_OBJECT_UDP:
core_object_udp_free((core_object_udp_t*)self);
break;
case CORE_OBJECT_TCP:
core_object_tcp_free((core_object_tcp_t*)self);
break;
case CORE_OBJECT_PAYLOAD:
core_object_payload_free((core_object_payload_t*)self);
break;
case CORE_OBJECT_DNS:
core_object_dns_free((core_object_dns_t*)self);
break;
default:
glfatal("unknown type %d", self->obj_type);
}
}

51
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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __dnsjit_core_object_h
#define __dnsjit_core_object_h
#define CORE_OBJECT_NONE 0
#define CORE_OBJECT_PCAP 1
/* link level objects */
#define CORE_OBJECT_ETHER 10
#define CORE_OBJECT_NULL 11
#define CORE_OBJECT_LOOP 12
#define CORE_OBJECT_LINUXSLL 13
#define CORE_OBJECT_IEEE802 14
#define CORE_OBJECT_GRE 15
/* protocol objects */
#define CORE_OBJECT_IP 20
#define CORE_OBJECT_IP6 21
#define CORE_OBJECT_ICMP 22
#define CORE_OBJECT_ICMP6 23
/* payload carrying objects */
#define CORE_OBJECT_UDP 30
#define CORE_OBJECT_TCP 31
/* payload */
#define CORE_OBJECT_PAYLOAD 40
/* service object(s) */
#define CORE_OBJECT_DNS 50
#include <stdint.h>
#include <dnsjit/core/object.hh>
#define CORE_OBJECT_INIT(type, prev) (core_object_t*)prev, type
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have objectd a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
typedef struct core_object core_object_t;
struct core_object {
const core_object_t* obj_prev;
int32_t obj_type;
};
core_object_t* core_object_copy(const core_object_t* self);
void core_object_free(core_object_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object
-- Base object that is passed between receiver and receivee
-- require("dnsjit.core.object")
-- print(object:type())
-- packet = object:cast()
--
-- This is the base object that can be casted to other objects that to
-- describe a DNS message, how it was captured or generated.
-- Objects can be chained together, for example a DNS message is created
-- ontop of a packet.
-- .SS Attributes
-- .TP
-- obj_type
-- The enum of the object type.
-- .TP
-- obj_prev
-- The previous object in the object chain.
module(...,package.seeall)
require("dnsjit.core.object_h")
require("dnsjit.core.object.pcap_h")
require("dnsjit.core.object.ether_h")
require("dnsjit.core.object.null_h")
require("dnsjit.core.object.loop_h")
require("dnsjit.core.object.linuxsll_h")
require("dnsjit.core.object.ieee802_h")
require("dnsjit.core.object.gre_h")
require("dnsjit.core.object.ip_h")
require("dnsjit.core.object.ip6_h")
require("dnsjit.core.object.icmp_h")
require("dnsjit.core.object.icmp6_h")
require("dnsjit.core.object.udp_h")
require("dnsjit.core.object.tcp_h")
require("dnsjit.core.object.payload_h")
require("dnsjit.core.object.dns_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_t"
local core_object_t
local Object = {
NONE = 0,
PCAP = 1,
ETHER = 10,
NULL = 11,
LOOP = 12,
LINUXSLL = 13,
IEEE802 = 14,
GRE = 15,
IP = 20,
IP6 = 21,
ICMP = 22,
ICMP6 = 23,
UDP = 30,
TCP = 31,
PAYLOAD = 40,
DNS = 50
}
local _type = {}
_type[Object.PCAP] = "pcap"
_type[Object.ETHER] = "ether"
_type[Object.NULL] = "null"
_type[Object.LOOP] = "loop"
_type[Object.LINUXSLL] = "linuxsll"
_type[Object.IEEE802] = "ieee802"
_type[Object.GRE] = "gre"
_type[Object.IP] = "ip"
_type[Object.IP6] = "ip6"
_type[Object.ICMP] = "icmp"
_type[Object.ICMP6] = "icmp6"
_type[Object.UDP] = "udp"
_type[Object.TCP] = "tcp"
_type[Object.PAYLOAD] = "payload"
_type[Object.DNS] = "dns"
_type[Object.NONE] = "none"
-- Return the textual type of the object.
function Object:type()
return _type[self.obj_type]
end
-- Return the previous object.
function Object:prev()
return self.obj_prev
end
local _cast = {}
_cast[Object.PCAP] = "core_object_pcap_t*"
_cast[Object.ETHER] = "core_object_ether_t*"
_cast[Object.NULL] = "core_object_null_t*"
_cast[Object.LOOP] = "core_object_loop_t*"
_cast[Object.LINUXSLL] = "core_object_linuxsll_t*"
_cast[Object.IEEE802] = "core_object_ieee802_t*"
_cast[Object.GRE] = "core_object_gre_t*"
_cast[Object.IP] = "core_object_ip_t*"
_cast[Object.IP6] = "core_object_ip6_t*"
_cast[Object.ICMP] = "core_object_icmp_t*"
_cast[Object.ICMP6] = "core_object_icmp6_t*"
_cast[Object.UDP] = "core_object_udp_t*"
_cast[Object.TCP] = "core_object_tcp_t*"
_cast[Object.PAYLOAD] = "core_object_payload_t*"
_cast[Object.DNS] = "core_object_dns_t*"
-- Cast the object to the underlining object module and return it.
function Object:cast()
return ffi.cast(_cast[self.obj_type], self)
end
-- Cast the object to the specified object module and return it.
-- Returns nil if the object chain doesn't contained the specified object type.
function Object:cast_to(obj_type)
if obj_type == nil then
obj_type = self.obj_type
end
local obj = self
while obj.obj_type ~= obj_type do
obj = obj.obj_prev
if obj == nil then return nil end
end
return ffi.cast(_cast[obj_type], obj)
end
-- Cast the object to the generic object module and return it.
function Object:uncast()
return self
end
-- Make a copy of the object and return it.
function Object:copy()
return C.core_object_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Object:free()
C.core_object_free(self)
end
core_object_t = ffi.metatype(t_name, { __index = Object })
-- dnsjit.core.object.pcap (3),
-- dnsjit.core.object.ether (3),
-- dnsjit.core.object.null (3),
-- dnsjit.core.object.loop (3),
-- dnsjit.core.object.linuxsll (3),
-- dnsjit.core.object.ieee802 (3),
-- dnsjit.core.object.gre (3),
-- dnsjit.core.object.ip (3),
-- dnsjit.core.object.ip6 (3),
-- dnsjit.core.object.icmp (3),
-- dnsjit.core.object.icmp6 (3),
-- dnsjit.core.object.udp (3),
-- dnsjit.core.object.tcp (3),
-- dnsjit.core.object.payload (3),
-- dnsjit.core.object.dns (3)
return Object

471
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@ -0,0 +1,471 @@
/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/dns.h"
#include "core/object/payload.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_ENDIAN_H
#include <endian.h>
#else
#ifdef HAVE_SYS_ENDIAN_H
#include <sys/endian.h>
#else
#ifdef HAVE_MACHINE_ENDIAN_H
#include <machine/endian.h>
#endif
#endif
#endif
#ifdef HAVE_BYTESWAP_H
#include <byteswap.h>
#endif
#ifndef bswap_16
#ifndef bswap16
#define bswap_16(x) swap16(x)
#define bswap_32(x) swap32(x)
#define bswap_64(x) swap64(x)
#else
#define bswap_16(x) bswap16(x)
#define bswap_32(x) bswap32(x)
#define bswap_64(x) bswap64(x)
#endif
#endif
#define _ERR_MALFORMED -2
#define _ERR_NEEDLABELS -3
static core_log_t _log = LOG_T_INIT("core.object.dns");
static core_object_dns_t _defaults = CORE_OBJECT_DNS_INIT(0);
static core_object_dns_label_t _defaults_label = { 0 };
static core_object_dns_rr_t _defaults_rr = { 0 };
static core_object_dns_q_t _defaults_q = { 0 };
core_log_t* core_object_dns_log()
{
return &_log;
}
core_object_dns_t* core_object_dns_new()
{
core_object_dns_t* self;
mlfatal_oom(self = malloc(sizeof(core_object_dns_t)));
*self = _defaults;
return self;
}
core_object_dns_t* core_object_dns_copy(const core_object_dns_t* self)
{
core_object_dns_t* copy;
mlassert_self();
mlfatal_oom(copy = malloc(sizeof(core_object_dns_t)));
memcpy(copy, self, sizeof(core_object_dns_t));
copy->obj_prev = 0;
return (core_object_dns_t*)copy;
}
void core_object_dns_free(core_object_dns_t* self)
{
mlassert_self();
free(self);
}
#define need8(v, p, l) \
if (l < 1) { \
break; \
} \
v = *p; \
p += 1; \
l -= 1
static inline uint16_t _need16(const void* ptr)
{
uint16_t v;
memcpy(&v, ptr, sizeof(v));
return be16toh(v);
}
#define need16(v, p, l) \
if (l < 2) { \
break; \
} \
v = _need16(p); \
p += 2; \
l -= 2
static inline uint32_t _need32(const void* ptr)
{
uint32_t v;
memcpy(&v, ptr, sizeof(v));
return be32toh(v);
}
#define need32(v, p, l) \
if (l < 4) { \
break; \
} \
v = _need32(p); \
p += 4; \
l -= 4
#define needxb(b, x, p, l) \
if (l < x) { \
break; \
} \
memcpy(b, p, x); \
p += x; \
l -= x
#define advancexb(x, p, l) \
if (l < x) { \
break; \
} \
p += x; \
l -= x
int core_object_dns_parse_header(core_object_dns_t* self)
{
const core_object_payload_t* payload;
uint8_t byte;
mlassert_self();
if (!(payload = (core_object_payload_t*)self->obj_prev) || payload->obj_type != CORE_OBJECT_PAYLOAD) {
mlfatal("no obj_prev or invalid type");
}
if (!payload->payload || !payload->len) {
mlfatal("no payload set or zero length");
}
self->payload = self->at = payload->payload;
self->len = self->left = payload->len;
for (;;) {
if (self->includes_dnslen) {
need16(self->dnslen, self->at, self->left);
self->have_dnslen = 1;
}
need16(self->id, self->at, self->left);
self->have_id = 1;
need8(byte, self->at, self->left);
self->qr = byte & (1 << 7) ? 1 : 0;
self->opcode = (byte >> 3) & 0xf;
self->aa = byte & (1 << 2) ? 1 : 0;
self->tc = byte & (1 << 1) ? 1 : 0;
self->rd = byte & (1 << 0) ? 1 : 0;
self->have_qr = self->have_opcode = self->have_aa = self->have_tc = self->have_rd = 1;
need8(byte, self->at, self->left);
self->ra = byte & (1 << 7) ? 1 : 0;
self->z = byte & (1 << 6) ? 1 : 0;
self->ad = byte & (1 << 5) ? 1 : 0;
self->cd = byte & (1 << 4) ? 1 : 0;
self->rcode = byte & 0xf;
self->have_ra = self->have_z = self->have_ad = self->have_cd = self->have_rcode = 1;
need16(self->qdcount, self->at, self->left);
self->have_qdcount = 1;
need16(self->ancount, self->at, self->left);
self->have_ancount = 1;
need16(self->nscount, self->at, self->left);
self->have_nscount = 1;
need16(self->arcount, self->at, self->left);
self->have_arcount = 1;
return 0;
}
// TODO: error here on malformed/truncated? could be quite spammy
return _ERR_MALFORMED;
}
static inline size_t _rdata_labels(uint16_t type)
{
switch (type) {
case CORE_OBJECT_DNS_TYPE_NS:
case CORE_OBJECT_DNS_TYPE_MD:
case CORE_OBJECT_DNS_TYPE_MF:
case CORE_OBJECT_DNS_TYPE_CNAME:
case CORE_OBJECT_DNS_TYPE_MB:
case CORE_OBJECT_DNS_TYPE_MG:
case CORE_OBJECT_DNS_TYPE_MR:
case CORE_OBJECT_DNS_TYPE_PTR:
case CORE_OBJECT_DNS_TYPE_NXT:
case CORE_OBJECT_DNS_TYPE_DNAME:
case CORE_OBJECT_DNS_TYPE_NSEC:
case CORE_OBJECT_DNS_TYPE_TKEY:
case CORE_OBJECT_DNS_TYPE_TSIG:
return 1;
case CORE_OBJECT_DNS_TYPE_SOA:
case CORE_OBJECT_DNS_TYPE_MINFO:
case CORE_OBJECT_DNS_TYPE_RP:
case CORE_OBJECT_DNS_TYPE_TALINK:
return 2;
case CORE_OBJECT_DNS_TYPE_MX:
case CORE_OBJECT_DNS_TYPE_AFSDB:
case CORE_OBJECT_DNS_TYPE_RT:
case CORE_OBJECT_DNS_TYPE_KX:
case CORE_OBJECT_DNS_TYPE_LP:
return 1;
case CORE_OBJECT_DNS_TYPE_PX:
return 2;
case CORE_OBJECT_DNS_TYPE_SIG:
case CORE_OBJECT_DNS_TYPE_RRSIG:
return 1;
case CORE_OBJECT_DNS_TYPE_SRV:
return 1;
case CORE_OBJECT_DNS_TYPE_NAPTR:
return 1;
case CORE_OBJECT_DNS_TYPE_HIP:
return 1;
default:
break;
}
return 0;
}
static inline size_t _label(core_object_dns_t* self, core_object_dns_label_t* label, size_t labels)
{
size_t n;
for (n = 0; self->left && n < labels; n++) {
core_object_dns_label_t* l = &label[n];
*l = _defaults_label;
need8(l->length, self->at, self->left);
if ((l->length & 0xc0) == 0xc0) {
need8(l->offset, self->at, self->left);
l->offset |= (l->length & 0x3f) << 8;
l->have_offset = 1;
return n;
} else if (l->length & 0xc0) {
l->extension_bits = l->length >> 6;
l->have_extension_bits = 1;
return n;
} else if (l->length) {
l->have_length = 1;
l->offset = self->at - self->payload - 1;
advancexb(l->length, self->at, self->left);
l->have_dn = 1;
} else {
l->is_end = 1;
return n;
}
}
return n;
}
int core_object_dns_parse_q(core_object_dns_t* self, core_object_dns_q_t* q, core_object_dns_label_t* label, size_t labels)
{
mlassert_self();
mlassert(q, "q is nil");
mlassert(label, "label is nil");
mlassert(labels, "labels is zero");
mlassert(self->at, "at is nil");
for (;;) {
*q = _defaults_q;
q->labels = _label(self, label, labels);
if (q->labels < labels) {
core_object_dns_label_t* l = &label[q->labels];
if (!(l->have_offset | l->have_extension_bits | l->is_end)) {
// TODO: error here on malformed/truncated? could be quite spammy
return _ERR_MALFORMED;
}
} else {
mlwarning("need more labels, aborting DNS parsing");
return _ERR_NEEDLABELS;
}
q->labels++;
need16(q->type, self->at, self->left);
q->have_type = 1;
need16(q->class, self->at, self->left);
q->have_class = 1;
return 0;
}
// TODO: error here on malformed/truncated? could be quite spammy
return _ERR_MALFORMED;
}
int core_object_dns_parse_rr(core_object_dns_t* self, core_object_dns_rr_t* rr, core_object_dns_label_t* label, size_t labels)
{
size_t rdata_label_sets;
mlassert_self();
mlassert(rr, "rr is nil");
mlassert(label, "label is nil");
mlassert(labels, "labels is zero");
mlassert(self->at, "at is nil");
for (;;) {
*rr = _defaults_rr;
rr->labels = _label(self, label, labels);
if (rr->labels < labels) {
core_object_dns_label_t* l = &label[rr->labels];
if (!(l->have_offset | l->have_extension_bits | l->is_end)) {
// TODO: error here on malformed/truncated? could be quite spammy
return _ERR_MALFORMED;
}
} else {
mlwarning("need more labels, aborting DNS parsing");
return _ERR_NEEDLABELS;
}
rr->labels++;
need16(rr->type, self->at, self->left);
rr->have_type = 1;
need16(rr->class, self->at, self->left);
rr->have_class = 1;
need32(rr->ttl, self->at, self->left);
rr->have_ttl = 1;
need16(rr->rdlength, self->at, self->left);
rr->have_rdlength = 1;
rr->rdata_offset = self->at - self->payload;
if (!(rdata_label_sets = _rdata_labels(rr->type))) {
advancexb(rr->rdlength, self->at, self->left);
rr->have_rdata = 1;
return 0;
}
switch (rr->type) {
case CORE_OBJECT_DNS_TYPE_MX:
case CORE_OBJECT_DNS_TYPE_AFSDB:
case CORE_OBJECT_DNS_TYPE_RT:
case CORE_OBJECT_DNS_TYPE_KX:
case CORE_OBJECT_DNS_TYPE_LP:
case CORE_OBJECT_DNS_TYPE_PX:
advancexb(2, self->at, self->left);
break;
case CORE_OBJECT_DNS_TYPE_SIG:
case CORE_OBJECT_DNS_TYPE_RRSIG:
advancexb(18, self->at, self->left);
break;
case CORE_OBJECT_DNS_TYPE_SRV:
advancexb(6, self->at, self->left);
break;
case CORE_OBJECT_DNS_TYPE_NAPTR: {
uint8_t naptr_length;
advancexb(4, self->at, self->left);
need8(naptr_length, self->at, self->left);
advancexb(naptr_length, self->at, self->left);
need8(naptr_length, self->at, self->left);
advancexb(naptr_length, self->at, self->left);
need8(naptr_length, self->at, self->left);
advancexb(naptr_length, self->at, self->left);
} break;
case CORE_OBJECT_DNS_TYPE_HIP: {
uint8_t hit_length;
uint16_t pk_length;
need8(hit_length, self->at, self->left);
advancexb(1, self->at, self->left);
need16(pk_length, self->at, self->left);
advancexb(hit_length, self->at, self->left);
advancexb(pk_length, self->at, self->left);
if (self->at - self->payload >= rr->rdata_offset + rr->rdlength) {
rdata_label_sets = 0;
}
} break;
}
while (rdata_label_sets) {
rr->rdata_labels += _label(self, &label[rr->labels + rr->rdata_labels], labels - rr->labels - rr->rdata_labels);
if (rr->labels + rr->rdata_labels < labels) {
core_object_dns_label_t* l = &label[rr->labels + rr->rdata_labels];
if (!(l->have_offset | l->have_extension_bits | l->is_end)) {
// TODO: error here on malformed/truncated? could be quite spammy
return _ERR_MALFORMED;
}
} else {
mlwarning("need more labels, aborting DNS parsing");
return _ERR_NEEDLABELS;
}
rr->rdata_labels++;
if (rr->type == CORE_OBJECT_DNS_TYPE_HIP && self->at - self->payload < rr->rdata_offset + rr->rdlength) {
continue;
}
rdata_label_sets--;
}
if (self->at - self->payload < rr->rdata_offset + rr->rdlength) {
rr->padding_offset = self->at - self->payload;
rr->padding_length = rr->rdlength - (rr->padding_offset - rr->rdata_offset);
advancexb(rr->padding_length, self->at, self->left);
/*
* TODO:
*
* This can indicate padding but we do not set that we have padding
* yet because we need to fully understand all record types before
* that and process valid data after the labels
*
rr->have_padding = 1;
*/
} else if (self->at - self->payload > rr->rdata_offset + rr->rdlength) {
// TODO: error here on malformed/truncated? could be quite spammy
return _ERR_MALFORMED;
}
rr->have_rdata = 1;
return 0;
}
// TODO: error here on malformed/truncated? could be quite spammy
return _ERR_MALFORMED;
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/log.h>
#include <dnsjit/core/object.h>
#ifndef __dnsjit_core_object_dns_h
#define __dnsjit_core_object_dns_h
#include <netinet/in.h>
#include <sys/types.h>
#include <dnsjit/core/object/dns.hh>
#define CORE_OBJECT_DNS_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_DNS, prev) \
, \
0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
}
/*
* 2016-12-09 https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml
*/
#define CORE_OBJECT_DNS_CLASS_IN 1
#define CORE_OBJECT_DNS_CLASS_CH 3
#define CORE_OBJECT_DNS_CLASS_HS 4
#define CORE_OBJECT_DNS_CLASS_NONE 254
#define CORE_OBJECT_DNS_CLASS_ANY 255
#define CORE_OBJECT_DNS_TYPE_A 1
#define CORE_OBJECT_DNS_TYPE_NS 2
#define CORE_OBJECT_DNS_TYPE_MD 3
#define CORE_OBJECT_DNS_TYPE_MF 4
#define CORE_OBJECT_DNS_TYPE_CNAME 5
#define CORE_OBJECT_DNS_TYPE_SOA 6
#define CORE_OBJECT_DNS_TYPE_MB 7
#define CORE_OBJECT_DNS_TYPE_MG 8
#define CORE_OBJECT_DNS_TYPE_MR 9
#define CORE_OBJECT_DNS_TYPE_NULL 10
#define CORE_OBJECT_DNS_TYPE_WKS 11
#define CORE_OBJECT_DNS_TYPE_PTR 12
#define CORE_OBJECT_DNS_TYPE_HINFO 13
#define CORE_OBJECT_DNS_TYPE_MINFO 14
#define CORE_OBJECT_DNS_TYPE_MX 15
#define CORE_OBJECT_DNS_TYPE_TXT 16
#define CORE_OBJECT_DNS_TYPE_RP 17
#define CORE_OBJECT_DNS_TYPE_AFSDB 18
#define CORE_OBJECT_DNS_TYPE_X25 19
#define CORE_OBJECT_DNS_TYPE_ISDN 20
#define CORE_OBJECT_DNS_TYPE_RT 21
#define CORE_OBJECT_DNS_TYPE_NSAP 22
#define CORE_OBJECT_DNS_TYPE_NSAP_PTR 23
#define CORE_OBJECT_DNS_TYPE_SIG 24
#define CORE_OBJECT_DNS_TYPE_KEY 25
#define CORE_OBJECT_DNS_TYPE_PX 26
#define CORE_OBJECT_DNS_TYPE_GPOS 27
#define CORE_OBJECT_DNS_TYPE_AAAA 28
#define CORE_OBJECT_DNS_TYPE_LOC 29
#define CORE_OBJECT_DNS_TYPE_NXT 30
#define CORE_OBJECT_DNS_TYPE_EID 31
#define CORE_OBJECT_DNS_TYPE_NIMLOC 32
#define CORE_OBJECT_DNS_TYPE_SRV 33
#define CORE_OBJECT_DNS_TYPE_ATMA 34
#define CORE_OBJECT_DNS_TYPE_NAPTR 35
#define CORE_OBJECT_DNS_TYPE_KX 36
#define CORE_OBJECT_DNS_TYPE_CERT 37
#define CORE_OBJECT_DNS_TYPE_A6 38
#define CORE_OBJECT_DNS_TYPE_DNAME 39
#define CORE_OBJECT_DNS_TYPE_SINK 40
#define CORE_OBJECT_DNS_TYPE_OPT 41
#define CORE_OBJECT_DNS_TYPE_APL 42
#define CORE_OBJECT_DNS_TYPE_DS 43
#define CORE_OBJECT_DNS_TYPE_SSHFP 44
#define CORE_OBJECT_DNS_TYPE_IPSECKEY 45
#define CORE_OBJECT_DNS_TYPE_RRSIG 46
#define CORE_OBJECT_DNS_TYPE_NSEC 47
#define CORE_OBJECT_DNS_TYPE_DNSKEY 48
#define CORE_OBJECT_DNS_TYPE_DHCID 49
#define CORE_OBJECT_DNS_TYPE_NSEC3 50
#define CORE_OBJECT_DNS_TYPE_NSEC3PARAM 51
#define CORE_OBJECT_DNS_TYPE_TLSA 52
#define CORE_OBJECT_DNS_TYPE_SMIMEA 53
#define CORE_OBJECT_DNS_TYPE_HIP 55
#define CORE_OBJECT_DNS_TYPE_NINFO 56
#define CORE_OBJECT_DNS_TYPE_RKEY 57
#define CORE_OBJECT_DNS_TYPE_TALINK 58
#define CORE_OBJECT_DNS_TYPE_CDS 59
#define CORE_OBJECT_DNS_TYPE_CDNSKEY 60
#define CORE_OBJECT_DNS_TYPE_OPENPGPKEY 61
#define CORE_OBJECT_DNS_TYPE_CSYNC 62
#define CORE_OBJECT_DNS_TYPE_SPF 99
#define CORE_OBJECT_DNS_TYPE_UINFO 100
#define CORE_OBJECT_DNS_TYPE_UID 101
#define CORE_OBJECT_DNS_TYPE_GID 102
#define CORE_OBJECT_DNS_TYPE_UNSPEC 103
#define CORE_OBJECT_DNS_TYPE_NID 104
#define CORE_OBJECT_DNS_TYPE_L32 105
#define CORE_OBJECT_DNS_TYPE_L64 106
#define CORE_OBJECT_DNS_TYPE_LP 107
#define CORE_OBJECT_DNS_TYPE_EUI48 108
#define CORE_OBJECT_DNS_TYPE_EUI64 109
#define CORE_OBJECT_DNS_TYPE_TKEY 249
#define CORE_OBJECT_DNS_TYPE_TSIG 250
#define CORE_OBJECT_DNS_TYPE_IXFR 251
#define CORE_OBJECT_DNS_TYPE_AXFR 252
#define CORE_OBJECT_DNS_TYPE_MAILB 253
#define CORE_OBJECT_DNS_TYPE_MAILA 254
#define CORE_OBJECT_DNS_TYPE_ANY 255
#define CORE_OBJECT_DNS_TYPE_URI 256
#define CORE_OBJECT_DNS_TYPE_CAA 257
#define CORE_OBJECT_DNS_TYPE_AVC 258
#define CORE_OBJECT_DNS_TYPE_TA 32768
#define CORE_OBJECT_DNS_TYPE_DLV 32769
#define CORE_OBJECT_DNS_OPCODE_QUERY 0
#define CORE_OBJECT_DNS_OPCODE_IQUERY 1
#define CORE_OBJECT_DNS_OPCODE_STATUS 2
#define CORE_OBJECT_DNS_OPCODE_NOTIFY 4
#define CORE_OBJECT_DNS_OPCODE_UPDATE 5
#define CORE_OBJECT_DNS_RCODE_NOERROR 0
#define CORE_OBJECT_DNS_RCODE_FORMERR 1
#define CORE_OBJECT_DNS_RCODE_SERVFAIL 2
#define CORE_OBJECT_DNS_RCODE_NXDOMAIN 3
#define CORE_OBJECT_DNS_RCODE_NOTIMP 4
#define CORE_OBJECT_DNS_RCODE_REFUSED 5
#define CORE_OBJECT_DNS_RCODE_YXDOMAIN 6
#define CORE_OBJECT_DNS_RCODE_YXRRSET 7
#define CORE_OBJECT_DNS_RCODE_NXRRSET 8
#define CORE_OBJECT_DNS_RCODE_NOTAUTH 9
#define CORE_OBJECT_DNS_RCODE_NOTZONE 10
#define CORE_OBJECT_DNS_RCODE_BADVERS 16
#define CORE_OBJECT_DNS_RCODE_BADSIG 16
#define CORE_OBJECT_DNS_RCODE_BADKEY 17
#define CORE_OBJECT_DNS_RCODE_BADTIME 18
#define CORE_OBJECT_DNS_RCODE_BADMODE 19
#define CORE_OBJECT_DNS_RCODE_BADNAME 20
#define CORE_OBJECT_DNS_RCODE_BADALG 21
#define CORE_OBJECT_DNS_RCODE_BADTRUNC 22
#define CORE_OBJECT_DNS_RCODE_BADCOOKIE 23
#define CORE_OBJECT_DNS_AFSDB_SUBTYPE_AFS3LOCSRV 1
#define CORE_OBJECT_DNS_AFSDB_SUBTYPE_DCENCA_ROOT 2
#define CORE_OBJECT_DNS_DHCID_TYPE_1OCTET 0
#define CORE_OBJECT_DNS_DHCID_TYPE_DATAOCTET 1
#define CORE_OBJECT_DNS_DHCID_TYPE_CLIENT_DUID 2
#define CORE_OBJECT_DNS_EDNS0_OPT_LLQ 1
#define CORE_OBJECT_DNS_EDNS0_OPT_UL 2
#define CORE_OBJECT_DNS_EDNS0_OPT_NSID 3
#define CORE_OBJECT_DNS_EDNS0_OPT_DAU 5
#define CORE_OBJECT_DNS_EDNS0_OPT_DHU 6
#define CORE_OBJECT_DNS_EDNS0_OPT_N3U 7
#define CORE_OBJECT_DNS_EDNS0_OPT_CLIENT_SUBNET 8
#define CORE_OBJECT_DNS_EDNS0_OPT_EXPIRE 9
#define CORE_OBJECT_DNS_EDNS0_OPT_COOKIE 10
#define CORE_OBJECT_DNS_EDNS0_OPT_TCP_KEEPALIVE 11
#define CORE_OBJECT_DNS_EDNS0_OPT_PADDING 12
#define CORE_OBJECT_DNS_EDNS0_OPT_CHAIN 13
#define CORE_OBJECT_DNS_EDNS0_OPT_DEVICEID 26946
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.log")
//lua:require("dnsjit.core.object_h")
typedef struct core_object_dns_label {
uint8_t is_end;
uint8_t have_length;
uint8_t have_offset;
uint8_t have_extension_bits;
uint8_t have_dn;
uint8_t extension_bits;
uint8_t length;
uint16_t offset;
} core_object_dns_label_t;
typedef struct core_object_dns_rr {
uint8_t have_type;
uint8_t have_class;
uint8_t have_ttl;
uint8_t have_rdlength;
uint8_t have_rdata;
uint8_t have_rdata_labels;
uint8_t have_padding;
uint16_t type;
uint16_t class;
uint32_t ttl;
uint16_t rdlength;
size_t labels;
size_t rdata_offset;
size_t rdata_labels;
size_t padding_offset;
size_t padding_length;
} core_object_dns_rr_t;
typedef struct core_object_dns_q {
uint8_t have_type;
uint8_t have_class;
uint16_t type;
uint16_t class;
size_t labels;
} core_object_dns_q_t;
typedef struct core_object_dns {
const core_object_t* obj_prev;
int32_t obj_type;
int includes_dnslen;
const uint8_t *payload, *at;
size_t len, left;
uint8_t have_dnslen;
uint8_t have_id;
uint8_t have_qr;
uint8_t have_opcode;
uint8_t have_aa;
uint8_t have_tc;
uint8_t have_rd;
uint8_t have_ra;
uint8_t have_z;
uint8_t have_ad;
uint8_t have_cd;
uint8_t have_rcode;
uint8_t have_qdcount;
uint8_t have_ancount;
uint8_t have_nscount;
uint8_t have_arcount;
uint16_t dnslen;
uint16_t id;
int8_t qr;
uint8_t opcode;
uint8_t aa;
uint8_t tc;
uint8_t rd;
uint8_t ra;
uint8_t z;
uint8_t ad;
uint8_t cd;
uint8_t rcode;
uint16_t qdcount;
uint16_t ancount;
uint16_t nscount;
uint16_t arcount;
} core_object_dns_t;
core_log_t* core_object_dns_log();
core_object_dns_t* core_object_dns_new();
core_object_dns_t* core_object_dns_copy(const core_object_dns_t* self);
void core_object_dns_free(core_object_dns_t* self);
void core_object_dns_reset(core_object_dns_t* self, const core_object_t* obj);
int core_object_dns_parse_header(core_object_dns_t* self);
int core_object_dns_parse_q(core_object_dns_t* self, core_object_dns_q_t* q, core_object_dns_label_t* label, size_t labels);
int core_object_dns_parse_rr(core_object_dns_t* self, core_object_dns_rr_t* rr, core_object_dns_label_t* label, size_t labels);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.dns
-- Container of a DNS message
-- .SS Parse DNS header and check if query or response
-- local dns = require("dnsjit.core.object.dns").new(payload)
-- if dns:parse_header() == 0 then
-- if dns.qr == 0 then
-- print(dns.id, dns.opcode_tostring(dns.opcode))
-- else
-- print(dns.id, dns.rcode_tostring(dns.rcode))
-- end
-- end
-- .SS Print a DNS payload
-- local dns = require("dnsjit.core.object.dns").new(payload)
-- dns:print()
-- .SS Parse a DNS payload
-- local dns = require("dnsjit.core.object.dns").new(payload)
-- local qs, q_labels, rrs, rr_labels = dns:parse()
-- if qs and q_labels then
-- ...
-- if rrs and rr_labels then
-- ...
-- end
-- end
--
-- The object that describes a DNS message.
-- .SS Attributes
-- .TP
-- includes_dnslen
-- If non-zero then this indicates that the DNS length is included in the
-- payload (for example if the transport is TCP) and will affect parsing of it.
-- .TP
-- have_dnslen
-- Set if the dnslen was included in the payload and could be read.
-- .TP
-- have_id
-- Set if there is a DNS ID.
-- .TP
-- have_qr
-- Set if there is a QR flag.
-- .TP
-- have_opcode
-- Set if there is an OPCODE.
-- .TP
-- have_aa
-- Set if there is a AA flag.
-- .TP
-- have_tc
-- Set if there is a TC flag.
-- .TP
-- have_rd
-- Set if there is a RD flag.
-- .TP
-- have_ra
-- Set if there is a RA flag.
-- .TP
-- have_z
-- Set if there is a Z flag.
-- .TP
-- have_ad
-- Set if there is a AD flag.
-- .TP
-- have_cd
-- Set if there is a CD flag.
-- .TP
-- have_rcode
-- Set if there is a RCODE.
-- .TP
-- have_qdcount
-- Set if there is an QDCOUNT.
-- .TP
-- have_ancount
-- Set if there is an ANCOUNT.
-- .TP
-- have_nscount
-- Set if there is a NSCOUNT.
-- .TP
-- have_arcount
-- Set if there is an ARCOUNT.
-- .TP
-- dnslen
-- The DNS length found in the payload.
-- .TP
-- id
-- The DNS ID.
-- .TP
-- qr
-- The QR flag.
-- .TP
-- opcode
-- The OPCODE.
-- .TP
-- aa
-- The AA flag.
-- .TP
-- tc
-- The TC flag.
-- .TP
-- rd
-- The RD flag.
-- .TP
-- ra
-- The RA flag.
-- .TP
-- z
-- The Z flag.
-- .TP
-- ad
-- The AD flag.
-- .TP
-- cd
-- The CD flag.
-- .TP
-- rcode
-- The RCODE.
-- .TP
-- qdcount
-- The QDCOUNT.
-- .TP
-- ancount
-- The ANCOUNT.
-- .TP
-- nscount
-- The NSCOUNT.
-- .TP
-- arcount
-- The ARCOUNT.
-- .SS Constants
-- The following tables exists for DNS parameters, taken from
-- .I https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml
-- on the 2016-12-09.
-- .LP
-- .IR CLASS ,
-- .IR CLASS_STR ,
-- .IR TYPE ,
-- .IR TYPE_STR ,
-- .IR OPCODE ,
-- .IR OPCODE_STR ,
-- .IR RCODE ,
-- .IR RCODE_STR ,
-- .IR AFSDB ,
-- .IR AFSDB_STR ,
-- .IR DHCID ,
-- .IR DHCID_STR ,
-- .IR ENDS0 ,
-- .IR ENDS0_STR
-- .LP
-- The
-- .I *_STR
-- tables can be used to get a textual representation of the numbers, see also
-- .IR class_tostring() ,
-- .IR type_tostring() ,
-- .IR opcode_tostring() ,
-- .IR rcode_tostring() ,
-- .IR afsdb_tostring() ,
-- .I dhcid_tostring()
-- and
-- .IR edns0_tostring() .
module(...,package.seeall)
require("dnsjit.core.object.dns_h")
local label = require("dnsjit.core.object.dns.label")
local Q = require("dnsjit.core.object.dns.q")
local RR = require("dnsjit.core.object.dns.rr")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_dns_t"
local core_object_dns_t
local Dns = {
CLASS = {
IN = 1,
CH = 3,
HS = 4,
NONE = 254,
ANY = 255,
},
TYPE = {
A = 1,
NS = 2,
MD = 3,
MF = 4,
CNAME = 5,
SOA = 6,
MB = 7,
MG = 8,
MR = 9,
NULL = 10,
WKS = 11,
PTR = 12,
HINFO = 13,
MINFO = 14,
MX = 15,
TXT = 16,
RP = 17,
AFSDB = 18,
X25 = 19,
ISDN = 20,
RT = 21,
NSAP = 22,
NSAP_PTR = 23,
SIG = 24,
KEY = 25,
PX = 26,
GPOS = 27,
AAAA = 28,
LOC = 29,
NXT = 30,
EID = 31,
NIMLOC = 32,
SRV = 33,
ATMA = 34,
NAPTR = 35,
KX = 36,
CERT = 37,
A6 = 38,
DNAME = 39,
SINK = 40,
OPT = 41,
APL = 42,
DS = 43,
SSHFP = 44,
IPSECKEY = 45,
RRSIG = 46,
NSEC = 47,
DNSKEY = 48,
DHCID = 49,
NSEC3 = 50,
NSEC3PARAM = 51,
TLSA = 52,
SMIMEA = 53,
HIP = 55,
NINFO = 56,
RKEY = 57,
TALINK = 58,
CDS = 59,
CDNSKEY = 60,
OPENPGPKEY = 61,
CSYNC = 62,
SPF = 99,
UINFO = 100,
UID = 101,
GID = 102,
UNSPEC = 103,
NID = 104,
L32 = 105,
L64 = 106,
LP = 107,
EUI48 = 108,
EUI64 = 109,
TKEY = 249,
TSIG = 250,
IXFR = 251,
AXFR = 252,
MAILB = 253,
MAILA = 254,
ANY = 255,
URI = 256,
CAA = 257,
AVC = 258,
TA = 32768,
DLV = 32769,
},
OPCODE = {
QUERY = 0,
IQUERY = 1,
STATUS = 2,
NOTIFY = 4,
UPDATE = 5,
},
RCODE = {
NOERROR = 0,
FORMERR = 1,
SERVFAIL = 2,
NXDOMAIN = 3,
NOTIMP = 4,
REFUSED = 5,
YXDOMAIN = 6,
YXRRSET = 7,
NXRRSET = 8,
NOTAUTH = 9,
NOTZONE = 10,
BADVERS = 16,
BADSIG = 16,
BADKEY = 17,
BADTIME = 18,
BADMODE = 19,
BADNAME = 20,
BADALG = 21,
BADTRUNC = 22,
BADCOOKIE = 23,
},
AFSDB = {
SUBTYPE_AFS3LOCSRV = 1,
SUBTYPE_DCENCA_ROOT = 2,
},
DHCID = {
TYPE_1OCTET = 0,
TYPE_DATAOCTET = 1,
TYPE_CLIENT_DUID = 2,
},
EDNS0 = {
OPT_LLQ = 1,
OPT_UL = 2,
OPT_NSID = 3,
OPT_DAU = 5,
OPT_DHU = 6,
OPT_N3U = 7,
OPT_CLIENT_SUBNET = 8,
OPT_EXPIRE = 9,
OPT_COOKIE = 10,
OPT_TCP_KEEPALIVE = 11,
OPT_PADDING = 12,
OPT_CHAIN = 13,
OPT_DEVICEID = 26946,
},
}
local _CLASS = {}
_CLASS[Dns.CLASS.IN] = "IN"
_CLASS[Dns.CLASS.CH] = "CH"
_CLASS[Dns.CLASS.HS] = "HS"
_CLASS[Dns.CLASS.NONE] = "NONE"
_CLASS[Dns.CLASS.ANY] = "ANY"
local _TYPE = {}
_TYPE[Dns.TYPE.A] = "A"
_TYPE[Dns.TYPE.NS] = "NS"
_TYPE[Dns.TYPE.MD] = "MD"
_TYPE[Dns.TYPE.MF] = "MF"
_TYPE[Dns.TYPE.CNAME] = "CNAME"
_TYPE[Dns.TYPE.SOA] = "SOA"
_TYPE[Dns.TYPE.MB] = "MB"
_TYPE[Dns.TYPE.MG] = "MG"
_TYPE[Dns.TYPE.MR] = "MR"
_TYPE[Dns.TYPE.NULL] = "NULL"
_TYPE[Dns.TYPE.WKS] = "WKS"
_TYPE[Dns.TYPE.PTR] = "PTR"
_TYPE[Dns.TYPE.HINFO] = "HINFO"
_TYPE[Dns.TYPE.MINFO] = "MINFO"
_TYPE[Dns.TYPE.MX] = "MX"
_TYPE[Dns.TYPE.TXT] = "TXT"
_TYPE[Dns.TYPE.RP] = "RP"
_TYPE[Dns.TYPE.AFSDB] = "AFSDB"
_TYPE[Dns.TYPE.X25] = "X25"
_TYPE[Dns.TYPE.ISDN] = "ISDN"
_TYPE[Dns.TYPE.RT] = "RT"
_TYPE[Dns.TYPE.NSAP] = "NSAP"
_TYPE[Dns.TYPE.NSAP_PTR] = "NSAP_PTR"
_TYPE[Dns.TYPE.SIG] = "SIG"
_TYPE[Dns.TYPE.KEY] = "KEY"
_TYPE[Dns.TYPE.PX] = "PX"
_TYPE[Dns.TYPE.GPOS] = "GPOS"
_TYPE[Dns.TYPE.AAAA] = "AAAA"
_TYPE[Dns.TYPE.LOC] = "LOC"
_TYPE[Dns.TYPE.NXT] = "NXT"
_TYPE[Dns.TYPE.EID] = "EID"
_TYPE[Dns.TYPE.NIMLOC] = "NIMLOC"
_TYPE[Dns.TYPE.SRV] = "SRV"
_TYPE[Dns.TYPE.ATMA] = "ATMA"
_TYPE[Dns.TYPE.NAPTR] = "NAPTR"
_TYPE[Dns.TYPE.KX] = "KX"
_TYPE[Dns.TYPE.CERT] = "CERT"
_TYPE[Dns.TYPE.A6] = "A6"
_TYPE[Dns.TYPE.DNAME] = "DNAME"
_TYPE[Dns.TYPE.SINK] = "SINK"
_TYPE[Dns.TYPE.OPT] = "OPT"
_TYPE[Dns.TYPE.APL] = "APL"
_TYPE[Dns.TYPE.DS] = "DS"
_TYPE[Dns.TYPE.SSHFP] = "SSHFP"
_TYPE[Dns.TYPE.IPSECKEY] = "IPSECKEY"
_TYPE[Dns.TYPE.RRSIG] = "RRSIG"
_TYPE[Dns.TYPE.NSEC] = "NSEC"
_TYPE[Dns.TYPE.DNSKEY] = "DNSKEY"
_TYPE[Dns.TYPE.DHCID] = "DHCID"
_TYPE[Dns.TYPE.NSEC3] = "NSEC3"
_TYPE[Dns.TYPE.NSEC3PARAM] = "NSEC3PARAM"
_TYPE[Dns.TYPE.TLSA] = "TLSA"
_TYPE[Dns.TYPE.SMIMEA] = "SMIMEA"
_TYPE[Dns.TYPE.HIP] = "HIP"
_TYPE[Dns.TYPE.NINFO] = "NINFO"
_TYPE[Dns.TYPE.RKEY] = "RKEY"
_TYPE[Dns.TYPE.TALINK] = "TALINK"
_TYPE[Dns.TYPE.CDS] = "CDS"
_TYPE[Dns.TYPE.CDNSKEY] = "CDNSKEY"
_TYPE[Dns.TYPE.OPENPGPKEY] = "OPENPGPKEY"
_TYPE[Dns.TYPE.CSYNC] = "CSYNC"
_TYPE[Dns.TYPE.SPF] = "SPF"
_TYPE[Dns.TYPE.UINFO] = "UINFO"
_TYPE[Dns.TYPE.UID] = "UID"
_TYPE[Dns.TYPE.GID] = "GID"
_TYPE[Dns.TYPE.UNSPEC] = "UNSPEC"
_TYPE[Dns.TYPE.NID] = "NID"
_TYPE[Dns.TYPE.L32] = "L32"
_TYPE[Dns.TYPE.L64] = "L64"
_TYPE[Dns.TYPE.LP] = "LP"
_TYPE[Dns.TYPE.EUI48] = "EUI48"
_TYPE[Dns.TYPE.EUI64] = "EUI64"
_TYPE[Dns.TYPE.TKEY] = "TKEY"
_TYPE[Dns.TYPE.TSIG] = "TSIG"
_TYPE[Dns.TYPE.IXFR] = "IXFR"
_TYPE[Dns.TYPE.AXFR] = "AXFR"
_TYPE[Dns.TYPE.MAILB] = "MAILB"
_TYPE[Dns.TYPE.MAILA] = "MAILA"
_TYPE[Dns.TYPE.ANY] = "ANY"
_TYPE[Dns.TYPE.URI] = "URI"
_TYPE[Dns.TYPE.CAA] = "CAA"
_TYPE[Dns.TYPE.AVC] = "AVC"
_TYPE[Dns.TYPE.TA] = "TA"
_TYPE[Dns.TYPE.DLV] = "DLV"
local _OPCODE = {}
_OPCODE[Dns.OPCODE.QUERY] = "QUERY"
_OPCODE[Dns.OPCODE.IQUERY] = "IQUERY"
_OPCODE[Dns.OPCODE.STATUS] = "STATUS"
_OPCODE[Dns.OPCODE.NOTIFY] = "NOTIFY"
_OPCODE[Dns.OPCODE.UPDATE] = "UPDATE"
local _RCODE = {}
_RCODE[Dns.RCODE.NOERROR] = "NOERROR"
_RCODE[Dns.RCODE.FORMERR] = "FORMERR"
_RCODE[Dns.RCODE.SERVFAIL] = "SERVFAIL"
_RCODE[Dns.RCODE.NXDOMAIN] = "NXDOMAIN"
_RCODE[Dns.RCODE.NOTIMP] = "NOTIMP"
_RCODE[Dns.RCODE.REFUSED] = "REFUSED"
_RCODE[Dns.RCODE.YXDOMAIN] = "YXDOMAIN"
_RCODE[Dns.RCODE.YXRRSET] = "YXRRSET"
_RCODE[Dns.RCODE.NXRRSET] = "NXRRSET"
_RCODE[Dns.RCODE.NOTAUTH] = "NOTAUTH"
_RCODE[Dns.RCODE.NOTZONE] = "NOTZONE"
_RCODE[Dns.RCODE.BADVERS] = "BADVERS"
_RCODE[Dns.RCODE.BADSIG] = "BADSIG"
_RCODE[Dns.RCODE.BADKEY] = "BADKEY"
_RCODE[Dns.RCODE.BADTIME] = "BADTIME"
_RCODE[Dns.RCODE.BADMODE] = "BADMODE"
_RCODE[Dns.RCODE.BADNAME] = "BADNAME"
_RCODE[Dns.RCODE.BADALG] = "BADALG"
_RCODE[Dns.RCODE.BADTRUNC] = "BADTRUNC"
_RCODE[Dns.RCODE.BADCOOKIE] = "BADCOOKIE"
local _AFSDB = {}
_AFSDB[Dns.AFSDB.SUBTYPE_AFS3LOCSRV] = "SUBTYPE_AFS3LOCSRV"
_AFSDB[Dns.AFSDB.SUBTYPE_DCENCA_ROOT] = "SUBTYPE_DCENCA_ROOT"
local _DHCID = {}
_DHCID[Dns.DHCID.TYPE_1OCTET] = "TYPE_1OCTET"
_DHCID[Dns.DHCID.TYPE_DATAOCTET] = "TYPE_DATAOCTET"
_DHCID[Dns.DHCID.TYPE_CLIENT_DUID] = "TYPE_CLIENT_DUID"
local _EDNS0 = {}
_EDNS0[Dns.EDNS0.OPT_LLQ] = "OPT_LLQ"
_EDNS0[Dns.EDNS0.OPT_UL] = "OPT_UL"
_EDNS0[Dns.EDNS0.OPT_NSID] = "OPT_NSID"
_EDNS0[Dns.EDNS0.OPT_DAU] = "OPT_DAU"
_EDNS0[Dns.EDNS0.OPT_DHU] = "OPT_DHU"
_EDNS0[Dns.EDNS0.OPT_N3U] = "OPT_N3U"
_EDNS0[Dns.EDNS0.OPT_CLIENT_SUBNET] = "OPT_CLIENT_SUBNET"
_EDNS0[Dns.EDNS0.OPT_EXPIRE] = "OPT_EXPIRE"
_EDNS0[Dns.EDNS0.OPT_COOKIE] = "OPT_COOKIE"
_EDNS0[Dns.EDNS0.OPT_TCP_KEEPALIVE] = "OPT_TCP_KEEPALIVE"
_EDNS0[Dns.EDNS0.OPT_PADDING] = "OPT_PADDING"
_EDNS0[Dns.EDNS0.OPT_CHAIN] = "OPT_CHAIN"
_EDNS0[Dns.EDNS0.OPT_DEVICEID] = "OPT_DEVICEID"
Dns.CLASS_STR = _CLASS
Dns.TYPE_STR = _TYPE
Dns.OPCODE_STR = _OPCODE
Dns.RCODE_STR = _RCODE
Dns.AFSDB_STR = _AFSDB
Dns.DHCID_STR = _DHCID
Dns.EDNS0_STR = _EDNS0
-- Create a new DNS object, optionally on-top of another object.
function Dns.new(obj)
local self = C.core_object_dns_new()
self.obj_prev = obj
ffi.gc(self, C.core_object_dns_free)
return self
end
-- Return the textual type of the object.
function Dns:type()
return "dns"
end
-- Return the previous object.
function Dns:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Dns:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Dns:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Dns:copy()
return C.core_object_dns_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Dns:free()
C.core_object_dns_free(self)
end
-- Return the Log object to control logging of this module.
function Dns:log()
return C.core_object_dns_log()
end
-- Begin parsing the underlaying object, first the header is parsed then
-- optionally continue calling
-- .IR parse_q ()
-- for the number of questions (see
-- .IR qdcount ).
-- After that continue calling
-- .IR parse_rr ()
-- for the number of answers, authorities and additionals resource records
-- (see
-- .IR ancount ", "
-- .I nscount
-- and
-- .IR arcount ).
-- Returns 0 on success or negative integer on error which can be for
-- malformed or truncated DNS (-2) or if more space for labels is needed (-3).
function Dns:parse_header()
return C.core_object_dns_parse_header(self)
end
-- Parse the next resource record as a question.
-- Returns 0 on success or negative integer on error which can be for
-- malformed or truncated DNS (-2) or if more space for labels is needed (-3).
function Dns:parse_q(q, labels, num_labels)
return C.core_object_dns_parse_q(self, q, labels, num_labels)
end
-- Parse the next resource record.
-- Returns 0 on success or negative integer on error which can be for
-- malformed or truncated DNS (-2) or if more space for labels is needed (-3).
function Dns:parse_rr(rr, labels, num_labels)
return C.core_object_dns_parse_rr(self, rr, labels, num_labels)
end
-- Begin parsing the underlaying object using
-- .IR parse_header "(), "
-- .IR parse_q ()
-- and
-- .IR parse_rr ().
-- The optional
-- .I num_labels
-- can be used to set a specific number of labels used for each question
-- and resource record (default 16).
-- Returns result code, an array of questions, an array of question labels,
-- an array of resource records and an array of resource records labels.
-- Result code is 0 on success or negative integer on error which can be for
-- malformed or truncated DNS (-2) or if more space for labels is needed (-3).
function Dns:parse(num_labels)
local qs, qls, rrs, rrls = {}, {}, {}, {}
if num_labels == nil then
num_labels = 16
end
ret = self:parse_header()
if ret ~= 0 then
return ret, qs, qls, rrs, rrls
end
for n = 1, self.qdcount do
local labels = label.new(num_labels)
local q = Q.new()
local ret = C.core_object_dns_parse_q(self, q, labels, num_labels)
if ret ~= 0 then
return ret, qs, qls, rrs, rrls
end
table.insert(qs, q)
table.insert(qls, labels)
end
for n = 1, self.ancount do
local labels = label.new(num_labels)
local rr = RR.new()
local ret = C.core_object_dns_parse_rr(self, rr, labels, num_labels)
if ret ~= 0 then
return ret, qs, qls, rrs, rrls
end
table.insert(rrs, rr)
table.insert(rrls, labels)
end
for n = 1, self.nscount do
local labels = label.new(num_labels)
local rr = RR.new()
local ret = C.core_object_dns_parse_rr(self, rr, labels, num_labels)
if ret ~= 0 then
return ret, qs, qls, rrs, rrls
end
table.insert(rrs, rr)
table.insert(rrls, labels)
end
for n = 1, self.arcount do
local labels = label.new(num_labels)
local rr = RR.new()
local ret = C.core_object_dns_parse_rr(self, rr, labels, num_labels)
if ret ~= 0 then
return ret, qs, qls, rrs, rrls
end
table.insert(rrs, rr)
table.insert(rrls, labels)
end
return 0, qs, qls, rrs, rrls
end
-- Begin parsing the underlaying object using
-- .IR parse_header "(), "
-- .IR parse_q ()
-- and
-- .IR parse_rr (),
-- and print it's content.
-- The optional
-- .I num_labels
-- can be used to set a specific number of labels used for each question
-- and resource record (default 16).
function Dns:print(num_labels)
if num_labels == nil then
num_labels = 16
end
local labels = label.new(num_labels)
local q = Q.new()
local rr = RR.new()
if self:parse_header() ~= 0 then
return
end
local flags = {}
if self.have_aa and self.aa == 1 then
table.insert(flags, "AA")
end
if self.have_tc and self.tc == 1 then
table.insert(flags, "TC")
end
if self.have_rd and self.rd == 1 then
table.insert(flags, "RD")
end
if self.have_ra and self.ra == 1 then
table.insert(flags, "RA")
end
if self.have_z and self.z == 1 then
table.insert(flags, "Z")
end
if self.have_ad and self.ad == 1 then
table.insert(flags, "AD")
end
if self.have_cd and self.cd == 1 then
table.insert(flags, "CD")
end
print("id:", self.id)
print("", "qr:", self.qr)
print("", "opcode:", Dns.opcode_tostring(self.opcode))
print("", "flags:", table.concat(flags, " "))
print("", "rcode:", Dns.rcode_tostring(self.rcode))
print("", "qdcount:", self.qdcount)
print("", "ancount:", self.ancount)
print("", "nscount:", self.nscount)
print("", "arcount:", self.arcount)
if self.qdcount > 0 then
print("questions:", "class", "type", "labels")
for n = 1, self.qdcount do
if C.core_object_dns_parse_q(self, q, labels, num_labels) ~= 0 then
return
end
print("", Dns.class_tostring(q.class), Dns.type_tostring(q.type), label.tooffstr(self, labels, num_labels))
end
end
if self.ancount > 0 then
print("answers:", "class", "type", "ttl", "labels", "RR labels")
for n = 1, self.ancount do
if C.core_object_dns_parse_rr(self, rr, labels, num_labels) ~= 0 then
return
end
if rr.rdata_labels == 0 then
print("", Dns.class_tostring(rr.class), Dns.type_tostring(rr.type), rr.ttl, label.tooffstr(self, labels, rr.labels))
else
print("", Dns.class_tostring(rr.class), Dns.type_tostring(rr.type), rr.ttl, label.tooffstr(self, labels, rr.labels), label.tooffstr(self, labels, rr.rdata_labels, rr.labels))
end
end
end
if self.nscount > 0 then
print("authorities:", "class", "type", "ttl", "labels", "RR labels")
for n = 1, self.nscount do
if C.core_object_dns_parse_rr(self, rr, labels, num_labels) ~= 0 then
return
end
if rr.rdata_labels == 0 then
print("", Dns.class_tostring(rr.class), Dns.type_tostring(rr.type), rr.ttl, label.tooffstr(self, labels, rr.labels))
else
print("", Dns.class_tostring(rr.class), Dns.type_tostring(rr.type), rr.ttl, label.tooffstr(self, labels, rr.labels), label.tooffstr(self, labels, rr.rdata_labels, rr.labels))
end
end
end
if self.arcount > 0 then
print("additionals:", "class", "type", "ttl", "labels", "RR labels")
for n = 1, self.arcount do
if C.core_object_dns_parse_rr(self, rr, labels, num_labels) ~= 0 then
return
end
if rr.rdata_labels == 0 then
print("", Dns.class_tostring(rr.class), Dns.type_tostring(rr.type), rr.ttl, label.tooffstr(self, labels, rr.labels))
else
print("", Dns.class_tostring(rr.class), Dns.type_tostring(rr.type), rr.ttl, label.tooffstr(self, labels, rr.labels), label.tooffstr(self, labels, rr.rdata_labels, rr.labels))
end
end
end
end
-- Return the textual name for a class.
function Dns.class_tostring(class)
if Dns.CLASS_STR[class] == nil then
return "UNKNOWN("..class..")"
end
return Dns.CLASS_STR[class]
end
-- Return the textual name for a type.
function Dns.type_tostring(type)
if Dns.TYPE_STR[type] == nil then
return "UNKNOWN("..type..")"
end
return Dns.TYPE_STR[type]
end
-- Return the textual name for an opcode.
function Dns.opcode_tostring(opcode)
if Dns.OPCODE_STR[opcode] == nil then
return "UNKNOWN("..opcode..")"
end
return Dns.OPCODE_STR[opcode]
end
-- Return the textual name for a rcode.
function Dns.rcode_tostring(rcode)
if Dns.RCODE_STR[rcode] == nil then
return "UNKNOWN("..rcode..")"
end
return Dns.RCODE_STR[rcode]
end
-- Return the textual name for an afsdb subtype.
function Dns.afsdb_tostring(afsdb)
if Dns.AFSDB_STR[afsdb] == nil then
return "UNKNOWN("..afsdb..")"
end
return Dns.AFSDB_STR[afsdb]
end
-- Return the textual name for a dhcid type.
function Dns.dhcid_tostring(dhcid)
if Dns.DHCID_STR[dhcid] == nil then
return "UNKNOWN("..dhcid..")"
end
return Dns.DHCID_STR[dhcid]
end
-- Return the textual name for an EDNS0 OPT record.
function Dns.edns0_tostring(edns0)
if Dns.EDNS0_STR[edns0] == nil then
return "UNKNOWN("..edns0..")"
end
return Dns.EDNS0_STR[edns0]
end
core_object_dns_t = ffi.metatype(t_name, { __index = Dns })
-- dnsjit.core.object (3),
-- dnsjit.core.object.payload (3),
-- dnsjit.core.object.dns.label (3),
-- dnsjit.core.object.dns.q (3),
-- dnsjit.core.object.dns.rr (3)
return Dns

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.dns.label
-- Container of a DNS label
--
-- The object that describes a DNS label.
-- To extract a domain name label first check that
-- .I have_dn
-- is set, then use
-- .I "offset + 1"
-- to indicate where in the payload the label start and
-- .I length
-- for how many bytes long it is.
-- .SS Attributes
-- .TP
-- is_end
-- .TP
-- have_length
-- Set if there is a length.
-- .TP
-- have_offset
-- Set if there is an offset.
-- .TP
-- have_extension_bits
-- Set if there is extension bits.
-- .TP
-- have_dn
-- Set if the label contained a domain name.
-- .TP
-- extension_bits
-- The extension bits.
-- .TP
-- length
-- The length of the domain name.
-- .TP
-- offset
-- If
-- .I have_dn
-- is set then this contains the offset within the payload to where this label
-- start otherwise it contains the offset to another label.
module(...,package.seeall)
require("dnsjit.core.object.dns_h")
local ffi = require("ffi")
local Label = {}
-- Create a new array of labels.
function Label.new(size)
return ffi.new("core_object_dns_label_t[?]", size)
end
-- Returns labels as a string and an offset to the next label.
-- The string may be nil if the first label was an offset.
-- The offset may be nil if the last label was an extension bits or end marker.
function Label.tostring(dns, labels, num_labels, offset_labels)
if offset_labels == nil then
offset_labels = 0
end
local dn
for n = 1, tonumber(num_labels) do
local label = labels[n - 1 + offset_labels]
if label.have_dn == 1 then
if dn == nil then
dn = ""
end
dn = dn .. ffi.string(dns.payload + label.offset + 1, label.length) .. "."
elseif label.have_offset == 1 then
return dn, label.offset
else
return dn, nil
end
end
return dn, nil
end
-- Returns labels as a string which also includes a textual notation of the
-- offset in the form of
-- .IR "<offset>label" .
function Label.tooffstr(dns, labels, num_labels, offset_labels)
if offset_labels == nil then
offset_labels = 0
end
local dn = ""
for n = 1, tonumber(num_labels) do
local label = labels[n - 1 + offset_labels]
if label.have_dn == 1 then
dn = dn .. "<" .. tonumber(label.offset) .. ">" .. ffi.string(dns.payload + label.offset + 1, label.length) .. "."
elseif label.have_offset == 1 then
dn = dn .. "<" .. tonumber(label.offset) .. ">"
break
else
break
end
end
return dn
end
-- dnsjit.core.object.dns (3)
return Label

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.dns.q
-- Container of a DNS question
--
-- The object that describes a DNS question.
-- .SS Attributes
-- .TP
-- have_type
-- Set if there is a type.
-- .TP
-- have_class
-- Set if there is a class.
-- .TP
-- type
-- The type.
-- .TP
-- class
-- The class.
-- .TP
-- labels
-- The number of labels found in the question.
module(...,package.seeall)
require("dnsjit.core.object.dns_h")
local ffi = require("ffi")
local Q = {}
-- Create a new question.
function Q.new(size)
return ffi.new("core_object_dns_q_t")
end
-- dnsjit.core.object.dns (3)
return Q

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.dns.rr
-- Container of a DNS resource record
--
-- The object that describes a DNS resource record.
-- .SS Attributes
-- .TP
-- have_type
-- Set if there is a type.
-- .TP
-- have_class
-- Set if there is a class.
-- .TP
-- have_ttl
-- Set if there is a ttl.
-- .TP
-- have_rdlength
-- Set if there is a rdlength.
-- .TP
-- have_rdata
-- Set if there is resource record data.
-- .TP
-- have_rdata_labels
-- Set if there are any labels within the rdata.
-- .TP
-- have_padding
-- Set if there is padding.
-- .TP
-- type
-- The type.
-- .TP
-- class
-- The class.
-- .TP
-- ttl
-- The TTL.
-- .TP
-- rdlength
-- The resource record data length.
-- .TP
-- labels
-- The number of labels found in the record.
-- .TP
-- rdata_offset
-- The offset within the payload for the resource record data.
-- .TP
-- rdata_labels
-- The number of labels found inside the resource record data.
-- .TP
-- padding_offset
-- The offset within the payload where the padding starts.
-- .TP
-- padding_length
-- The length of the padding.
module(...,package.seeall)
require("dnsjit.core.object.dns_h")
local ffi = require("ffi")
local Rr = {}
-- Create a new resource record.
function Rr.new()
return ffi.new("core_object_dns_rr_t")
end
-- dnsjit.core.object.dns (3)
return Rr

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/ether.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_ether_t* core_object_ether_copy(const core_object_ether_t* self)
{
core_object_ether_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_ether_t)));
memcpy(copy, self, sizeof(core_object_ether_t));
copy->obj_prev = 0;
return copy;
}
void core_object_ether_free(core_object_ether_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_ether_h
#define __dnsjit_core_object_ether_h
#include <stddef.h>
#include <dnsjit/core/object/ether.hh>
#define CORE_OBJECT_ETHER_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_ETHER, prev) \
, \
{ 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0 }, 0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_ether {
const core_object_t* obj_prev;
int32_t obj_type;
uint8_t dhost[6];
uint8_t shost[6];
uint16_t type;
} core_object_ether_t;
core_object_ether_t* core_object_ether_copy(const core_object_ether_t* self);
void core_object_ether_free(core_object_ether_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.ether
-- Ether part of a packet
--
-- The ether part of a packet that usually can be found in the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- dhost
-- The destination ether address.
-- .TP
-- shost
-- The source ether address.
-- .TP
-- type
-- The packet type ID field / EtherType field.
module(...,package.seeall)
require("dnsjit.core.object.ether_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_ether_t"
local core_object_ether_t
local Ether = {}
-- Return the textual type of the object.
function Ether:type()
return "ether"
end
-- Return the previous object.
function Ether:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Ether:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Ether:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Ether:copy()
return C.core_object_ether_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Ether:free()
C.core_object_ether_free(self)
end
core_object_ether_t = ffi.metatype(t_name, { __index = Ether })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Ether

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/gre.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_gre_t* core_object_gre_copy(const core_object_gre_t* self)
{
core_object_gre_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_gre_t)));
memcpy(copy, self, sizeof(core_object_gre_t));
copy->obj_prev = 0;
return copy;
}
void core_object_gre_free(core_object_gre_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_gre_h
#define __dnsjit_core_object_gre_h
#include <stddef.h>
#include <dnsjit/core/object/gre.hh>
#define CORE_OBJECT_GRE_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_GRE, prev) \
, \
0, 0, 0, 0, 0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_gre {
const core_object_t* obj_prev;
int32_t obj_type;
uint16_t gre_flags;
uint16_t ether_type;
uint16_t checksum;
uint16_t offset;
uint32_t key;
uint32_t sequence;
// TODO: routing list, check RFC 1701.
} core_object_gre_t;
core_object_gre_t* core_object_gre_copy(const core_object_gre_t* self);
void core_object_gre_free(core_object_gre_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.gre
-- Generic Routing Encapsulation (GRE) part of a packet
--
-- The GRE part of a packet that usually can be found in the object chain
-- after parsing with, for example, Layer filter.
-- See RFC 1701.
-- .SS Attributes
-- .TP
-- gre_flags
-- The GRE flags.
-- .TP
-- ether_type
-- The protocol type of the payload packet.
-- .TP
-- checksum
-- The checksum of the GRE header and the payload packet.
-- .TP
-- key
-- The Key field contains a four octet number which was inserted by
-- the encapsulator.
-- .TP
-- sequence
-- The Sequence Number field contains an unsigned 32 bit integer which is
-- inserted by the encapsulator.
module(...,package.seeall)
require("dnsjit.core.object.gre_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_gre_t"
local core_object_gre_t
local Gre = {}
-- Return the textual type of the object.
function Gre:type()
return "gre"
end
-- Return the previous object.
function Gre:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Gre:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Gre:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Gre:copy()
return C.core_object_gre_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Gre:free()
C.core_object_gre_free(self)
end
core_object_gre_t = ffi.metatype(t_name, { __index = Gre })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Gre

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/icmp.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_icmp_t* core_object_icmp_copy(const core_object_icmp_t* self)
{
core_object_icmp_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_icmp_t)));
memcpy(copy, self, sizeof(core_object_icmp_t));
copy->obj_prev = 0;
return copy;
}
void core_object_icmp_free(core_object_icmp_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_icmp_h
#define __dnsjit_core_object_icmp_h
#include <stddef.h>
#include <dnsjit/core/object/icmp.hh>
#define CORE_OBJECT_ICMP_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_ICMP, prev) \
, \
0, 0, 0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_icmp {
const core_object_t* obj_prev;
int32_t obj_type;
uint8_t type;
uint8_t code;
uint16_t cksum;
} core_object_icmp_t;
core_object_icmp_t* core_object_icmp_copy(const core_object_icmp_t* self);
void core_object_icmp_free(core_object_icmp_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.icmp
-- An ICMP packet
--
-- An ICMP packet which is usually at the top of the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- type
-- The type of ICMP message.
-- .TP
-- code
-- The (response/error) code for the ICMP type message.
-- .TP
-- cksum
-- The ICMP checksum.
module(...,package.seeall)
require("dnsjit.core.object.icmp_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_icmp_t"
local core_object_icmp_t
local Icmp = {}
-- Return the textual type of the object.
function Icmp:type()
return "icmp"
end
-- Return the previous object.
function Icmp:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Icmp:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Icmp:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Icmp:copy()
return C.core_object_icmp_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Icmp:free()
C.core_object_icmp_free(self)
end
core_object_icmp_t = ffi.metatype(t_name, { __index = Icmp })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Icmp

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/icmp6.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_icmp6_t* core_object_icmp6_copy(const core_object_icmp6_t* self)
{
core_object_icmp6_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_icmp6_t)));
memcpy(copy, self, sizeof(core_object_icmp6_t));
copy->obj_prev = 0;
return copy;
}
void core_object_icmp6_free(core_object_icmp6_t* self)
{
glassert_self();
free(self);
}

38
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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_icmp6_h
#define __dnsjit_core_object_icmp6_h
#include <stddef.h>
#include <dnsjit/core/object/icmp6.hh>
#define CORE_OBJECT_ICMP6_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_ICMP6, prev) \
, \
0, 0, 0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_icmp6 {
const core_object_t* obj_prev;
int32_t obj_type;
uint8_t type;
uint8_t code;
uint16_t cksum;
} core_object_icmp6_t;
core_object_icmp6_t* core_object_icmp6_copy(const core_object_icmp6_t* self);
void core_object_icmp6_free(core_object_icmp6_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.icmp6
-- An ICMPv6 packet
--
-- An ICMPv6 packet which is usually at the top of the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- type
-- The type of ICMPv6 message.
-- .TP
-- code
-- The (response/error) code for the ICMPv6 type message.
-- .TP
-- cksum
-- The ICMPv6 checksum.
module(...,package.seeall)
require("dnsjit.core.object.icmp6_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_icmp6_t"
local core_object_icmp6_t
local Icmp6 = {}
-- Return the textual type of the object.
function Icmp6:type()
return "icmp6"
end
-- Return the previous object.
function Icmp6:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Icmp6:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Icmp6:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Icmp6:copy()
return C.core_object_icmp6_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Icmp6:free()
C.core_object_icmp6_free(self)
end
core_object_icmp6_t = ffi.metatype(t_name, { __index = Icmp6 })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Icmp6

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/ieee802.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_ieee802_t* core_object_ieee802_copy(const core_object_ieee802_t* self)
{
core_object_ieee802_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_ieee802_t)));
memcpy(copy, self, sizeof(core_object_ieee802_t));
copy->obj_prev = 0;
return copy;
}
void core_object_ieee802_free(core_object_ieee802_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_ieee802_h
#define __dnsjit_core_object_ieee802_h
#include <stddef.h>
#include <dnsjit/core/object/ieee802.hh>
#define CORE_OBJECT_IEEE802_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_IEEE802, prev) \
, \
0, 0, 0, 0, 0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_ieee802 {
const core_object_t* obj_prev;
int32_t obj_type;
uint16_t tpid;
uint8_t pcp;
uint8_t dei;
uint8_t vid;
uint16_t ether_type;
} core_object_ieee802_t;
core_object_ieee802_t* core_object_ieee802_copy(const core_object_ieee802_t* self);
void core_object_ieee802_free(core_object_ieee802_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.ieee802
-- IEEE802 part of a packet
--
-- The IEEE802 part of a packet that usually can be found in the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- tpid
-- Tag protocol identifier.
-- .TP
-- pcp
-- Priority code point.
-- .TP
-- dei
-- Drop eligible indicator.
-- .TP
-- vid
-- VLAN identifier.
-- .TP
-- ether_type
-- The packet type ID field / EtherType field.
module(...,package.seeall)
require("dnsjit.core.object.ieee802_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_ieee802_t"
local core_object_ieee802_t
local Ieee802 = {}
-- Return the textual type of the object.
function Ieee802:type()
return "ieee802"
end
-- Return the previous object.
function Ieee802:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Ieee802:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Ieee802:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Ieee802:copy()
return C.core_object_ieee802_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Ieee802:free()
C.core_object_ieee802_free(self)
end
core_object_ieee802_t = ffi.metatype(t_name, { __index = Ieee802 })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Ieee802

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/ip.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_ip_t* core_object_ip_copy(const core_object_ip_t* self)
{
core_object_ip_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_ip_t)));
memcpy(copy, self, sizeof(core_object_ip_t));
copy->obj_prev = 0;
return copy;
}
void core_object_ip_free(core_object_ip_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_ip_h
#define __dnsjit_core_object_ip_h
#include <stddef.h>
#include <dnsjit/core/object/ip.hh>
#define CORE_OBJECT_IP_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_IP, prev) \
, \
0, 0, 0, 0, 0, 0, 0, 0, 0, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_ip {
const core_object_t* obj_prev;
int32_t obj_type;
uint8_t v;
uint8_t hl;
uint8_t tos;
uint16_t len;
uint16_t id;
uint16_t off;
uint8_t ttl;
uint8_t p;
uint16_t sum;
uint8_t src[4], dst[4];
} core_object_ip_t;
core_object_ip_t* core_object_ip_copy(const core_object_ip_t* self);
void core_object_ip_free(core_object_ip_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.ip
-- An IP packet
--
-- An IP packet that usually can be found in the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- v
-- Version.
-- .TP
-- hl
-- Header length.
-- .TP
-- tos
-- Type of service.
-- .TP
-- len
-- Total length.
-- .TP
-- id
-- Identification.
-- .TP
-- off
-- Fragment offset field.
-- .TP
-- ttl
-- Time to live.
-- .TP
-- p
-- Protocol.
-- .TP
-- sum
-- Checksum.
-- .TP
-- src
-- Source address.
-- .TP
-- dst
-- Destination address.
-- .TP
-- payload
-- A pointer to the payload.
-- .TP
-- plen
-- The length of the payload.
-- .TP
-- pad_len
-- The length of padding found, if any.
module(...,package.seeall)
require("dnsjit.core.object.ip_h")
local ffi = require("ffi")
local C = ffi.C
local libip = require("dnsjit.lib.ip")
local t_name = "core_object_ip_t"
local core_object_ip_t
local Ip = {}
-- Return the textual type of the object.
function Ip:type()
return "ip"
end
-- Return the previous object.
function Ip:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Ip:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Ip:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Ip:copy()
return C.core_object_ip_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Ip:free()
C.core_object_ip_free(self)
end
-- Return the IP source as a string.
function Ip:source()
return libip.ipstring(self.src)
end
-- Return the IP destination as a string.
function Ip:destination()
return libip.ipstring(self.dst)
end
core_object_ip_t = ffi.metatype(t_name, { __index = Ip })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Ip

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/ip6.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_ip6_t* core_object_ip6_copy(const core_object_ip6_t* self)
{
core_object_ip6_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_ip6_t)));
memcpy(copy, self, sizeof(core_object_ip6_t));
copy->obj_prev = 0;
return copy;
}
void core_object_ip6_free(core_object_ip6_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_ip6_h
#define __dnsjit_core_object_ip6_h
#include <stddef.h>
#include <dnsjit/core/object/ip6.hh>
#define CORE_OBJECT_IP6_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_IP6, prev) \
, \
0, 0, 0, 0, \
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, \
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, \
0, 0, 0, 0, \
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_ip6 {
const core_object_t* obj_prev;
int32_t obj_type;
uint32_t flow;
uint16_t plen;
uint8_t nxt;
uint8_t hlim;
uint8_t src[16];
uint8_t dst[16];
uint8_t is_frag;
uint8_t have_rtdst;
uint16_t frag_offlg;
uint16_t frag_ident;
uint8_t rtdst[16];
} core_object_ip6_t;
core_object_ip6_t* core_object_ip6_copy(const core_object_ip6_t* self);
void core_object_ip6_free(core_object_ip6_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.ip6
-- An IPv6 packet
--
-- An IPv6 packet that usually can be found in the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- flow
-- 4 bits version, 8 bits TC and 20 bits flow-ID.
-- .TP
-- plen
-- Payload length (as in the IPv6 header).
-- .TP
-- nxt
-- Next header.
-- .TP
-- hlim
-- Hop limit.
-- .TP
-- src
-- Source address.
-- .TP
-- dst
-- Destination address.
-- .TP
-- is_frag
-- 1 bit, set if packet is a fragment.
-- .TP
-- have_rtdst
-- 1 bit, set if
-- .I rtdst
-- is set.
-- .TP
-- frag_offlg
-- Offset, reserved, and flag taken from the fragment header.
-- .TP
-- frag_ident
-- Identification taken from the fragment header.
-- .TP
-- rtdst
-- Destination address found in the routing extension header.
-- .TP
-- payload
-- A pointer to the payload.
-- .TP
-- len
-- The length of the payload.
-- .TP
-- pad_len
-- The length of padding found, if any.
module(...,package.seeall)
require("dnsjit.core.object.ip6_h")
local ffi = require("ffi")
local C = ffi.C
local libip = require("dnsjit.lib.ip")
local t_name = "core_object_ip6_t"
local core_object_ip6_t
local Ip6 = {}
-- Return the textual type of the object.
function Ip6:type()
return "ip6"
end
-- Return the previous object.
function Ip6:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Ip6:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Ip6:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Ip6:copy()
return C.core_object_ip6_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Ip6:free()
C.core_object_ip6_free(self)
end
-- Return the IPv6 source as a string.
-- If
-- .I pretty
-- is true then return an easier to read IPv6 address.
function Ip6:source(pretty)
return libip.ip6string(self.src, pretty)
end
-- Return the IPv6 destination as a string.
-- If
-- .I pretty
-- is true then return an easier to read IPv6 address.
function Ip6:destination(pretty)
return libip.ip6string(self.dst, pretty)
end
core_object_ip6_t = ffi.metatype(t_name, { __index = Ip6 })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Ip6

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/linuxsll.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_linuxsll_t* core_object_linuxsll_copy(const core_object_linuxsll_t* self)
{
core_object_linuxsll_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_linuxsll_t)));
memcpy(copy, self, sizeof(core_object_linuxsll_t));
copy->obj_prev = 0;
return copy;
}
void core_object_linuxsll_free(core_object_linuxsll_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_linuxsll_h
#define __dnsjit_core_object_linuxsll_h
#include <stddef.h>
#include <dnsjit/core/object/linuxsll.hh>
#define CORE_OBJECT_LINUXSLL_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_LINUXSLL, prev) \
, \
0, 0, 0, { 0, 0, 0, 0, 0, 0, 0, 0 }, 0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_linuxsll {
const core_object_t* obj_prev;
int32_t obj_type;
uint16_t packet_type;
uint16_t arp_hardware;
uint16_t link_layer_address_length;
uint8_t link_layer_address[8];
uint16_t ether_type;
} core_object_linuxsll_t;
core_object_linuxsll_t* core_object_linuxsll_copy(const core_object_linuxsll_t* self);
void core_object_linuxsll_free(core_object_linuxsll_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.linuxsll
-- Linux cooked-mode capture (SLL) part of a packet
--
-- The SLL part of a packet that usually can be found in the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- packet_type
-- The packet type.
-- .TP
-- arp_hardware
-- The link-layer device type.
-- .TP
-- link_layer_address_length
-- The length of the link-layer address.
-- .TP
-- link_layer_address
-- The link-layer address.
-- .TP
-- ether_type
-- An Ethernet protocol type.
module(...,package.seeall)
require("dnsjit.core.object.linuxsll_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_linuxsll_t"
local core_object_linuxsll_t
local Linuxsll = {}
-- Return the textual type of the object.
function Linuxsll:type()
return "linuxsll"
end
-- Return the previous object.
function Linuxsll:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Linuxsll:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Linuxsll:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Linuxsll:copy()
return C.core_object_linuxsll_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Linuxsll:free()
C.core_object_linuxsll_free(self)
end
core_object_linuxsll_t = ffi.metatype(t_name, { __index = Linuxsll })
-- dnsjit.core.object (3).
-- dnsjit.filter.layer (3)
return Linuxsll

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/loop.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_loop_t* core_object_loop_copy(const core_object_loop_t* self)
{
core_object_loop_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_loop_t)));
memcpy(copy, self, sizeof(core_object_loop_t));
copy->obj_prev = 0;
return copy;
}
void core_object_loop_free(core_object_loop_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_loop_h
#define __dnsjit_core_object_loop_h
#include <stddef.h>
#include <dnsjit/core/object/loop.hh>
#define CORE_OBJECT_LOOP_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_LOOP, prev) \
, \
0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_loop {
const core_object_t* obj_prev;
int32_t obj_type;
uint32_t family;
} core_object_loop_t;
core_object_loop_t* core_object_loop_copy(const core_object_loop_t* self);
void core_object_loop_free(core_object_loop_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.loop
-- OpenBSD loopback encapsulation (loop) part of a packet
--
-- The loop part of a packet that usually can be found in the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- family
-- The link-layer header describing what type of packet is encapsulated.
module(...,package.seeall)
require("dnsjit.core.object.loop_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_loop_t"
local core_object_loop_t
local Loop = {}
-- Return the textual type of the object.
function Loop:type()
return "loop"
end
-- Return the previous object.
function Loop:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Loop:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Loop:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Loop:copy()
return C.core_object_loop_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Loop:free()
C.core_object_loop_free(self)
end
core_object_loop_t = ffi.metatype(t_name, { __index = Loop })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Loop

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/null.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_null_t* core_object_null_copy(const core_object_null_t* self)
{
core_object_null_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_null_t)));
memcpy(copy, self, sizeof(core_object_null_t));
copy->obj_prev = 0;
return copy;
}
void core_object_null_free(core_object_null_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_null_h
#define __dnsjit_core_object_null_h
#include <stddef.h>
#include <dnsjit/core/object/null.hh>
#define CORE_OBJECT_NULL_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_NULL, prev) \
, \
0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_null {
const core_object_t* obj_prev;
int32_t obj_type;
uint32_t family;
} core_object_null_t;
core_object_null_t* core_object_null_copy(const core_object_null_t* self);
void core_object_null_free(core_object_null_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.null
-- BSD loopback encapsulation (null) part of a packet
--
-- The null part of a packet that usually can be found in the object chain
-- after parsing with, for example, Layer filter.
-- .SS Attributes
-- .TP
-- family
-- The link-layer header describing what type of packet is encapsulated.
module(...,package.seeall)
require("dnsjit.core.object.null_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_null_t"
local core_object_null_t
local Null = {}
-- Return the textual type of the object.
function Null:type()
return "null"
end
-- Return the previous object.
function Null:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Null:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Null:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Null:copy()
return C.core_object_null_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Null:free()
C.core_object_null_free(self)
end
core_object_null_t = ffi.metatype(t_name, { __index = Null })
-- dnsjit.core.object (3),
-- dnsjit.filter.layer (3)
return Null

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/payload.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_payload_t* core_object_payload_copy(const core_object_payload_t* self)
{
core_object_payload_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_payload_t) + self->len + self->padding));
memcpy(copy, self, sizeof(core_object_payload_t));
copy->obj_prev = 0;
if (copy->payload) {
copy->payload = (void*)copy + sizeof(core_object_payload_t);
memcpy((void*)copy->payload, self->payload, self->len + self->padding);
}
return copy;
}
void core_object_payload_free(core_object_payload_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_payload_h
#define __dnsjit_core_object_payload_h
#include <stddef.h>
#include <dnsjit/core/object/payload.hh>
#define CORE_OBJECT_PAYLOAD_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_PAYLOAD, prev) \
, \
0, 0, 0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_payload {
const core_object_t* obj_prev;
int32_t obj_type;
const uint8_t* payload;
size_t len, padding;
} core_object_payload_t;
core_object_payload_t* core_object_payload_copy(const core_object_payload_t* self);
void core_object_payload_free(core_object_payload_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.payload
-- Application data payload
--
-- Payload object contains the data carried by the underlying transport
-- protocol.
-- Payload is usually at the top of the object chain after parsing with,
-- for example,
-- .IR dnsjit.filter.layer .
-- .SS Attributes
-- .TP
-- payload
-- A pointer to the payload.
-- .TP
-- len
-- The length of the payload.
-- .TP
-- padding
-- The length of padding in the underlying packet.
module(...,package.seeall)
require("dnsjit.core.object.payload_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_payload_t"
local core_object_payload_t
local Payload = {}
-- Return the textual type of the object.
function Payload:type()
return "payload"
end
-- Return the previous object.
function Payload:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Payload:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Payload:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Payload:copy()
return C.core_object_payload_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Payload:free()
C.core_object_payload_free(self)
end
core_object_payload_t = ffi.metatype(t_name, { __index = Payload })
-- dnsjit.core.object (3),
-- dnsjit.core.object.udp (3),
-- dnsjit.core.object.tcp (3),
-- dnsjit.filter.layer (3)
return Payload

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/pcap.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_pcap_t* core_object_pcap_copy(const core_object_pcap_t* self)
{
core_object_pcap_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_pcap_t) + self->caplen));
memcpy(copy, self, sizeof(core_object_pcap_t));
copy->obj_prev = 0;
if (copy->bytes) {
copy->bytes = (void*)copy + sizeof(core_object_pcap_t);
memcpy((void*)copy->bytes, self->bytes, self->caplen);
}
return copy;
}
void core_object_pcap_free(core_object_pcap_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_pcap_h
#define __dnsjit_core_object_pcap_h
#include <dnsjit/core/object/pcap.hh>
#define CORE_OBJECT_PCAP_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_PCAP, prev) \
, \
0, 0, \
{ 0, 0 }, 0, 0, 0, \
0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
//lua:require("dnsjit.core.timespec_h")
typedef struct core_object_pcap {
const core_object_t* obj_prev;
int32_t obj_type;
uint32_t snaplen, linktype;
core_timespec_t ts;
uint32_t caplen, len;
const unsigned char* bytes;
uint8_t is_swapped;
} core_object_pcap_t;
core_object_pcap_t* core_object_pcap_copy(const core_object_pcap_t* self);
void core_object_pcap_free(core_object_pcap_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.pcap
-- Container of a packet found in a PCAP
--
-- Container of a PCAP packet which contains information both from the PCAP
-- itself and the
-- .I pcap_pkthdr
-- object receied for each packet in the PCAP.
-- .SS Attributes
-- .TP
-- snaplen
-- Max length saved portion of each packet.
-- .TP
-- linktype
-- Data link type for the PCAP.
-- .TP
-- ts
-- Time stamp of this packet.
-- .TP
-- caplen
-- Length of portion present.
-- .TP
-- len
-- Length of this packet (off wire).
-- .TP
-- bytes
-- A pointer to the packet.
-- .TP
-- is_swapped
-- Indicate if the byte order of the PCAP is different then the host.
-- This is used in, for example, the Layer filter to correctly parse null
-- objects since they are stored in the capturers host byte order.
module(...,package.seeall)
require("dnsjit.core.object.pcap_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_pcap_t"
local core_object_pcap_t
local Pcap = {}
-- Return the textual type of the object.
function Pcap:type()
return "pcap"
end
-- Return the previous object.
function Pcap:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Pcap:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Pcap:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Pcap:copy()
return C.core_object_pcap_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Pcap:free()
C.core_object_pcap_free(self)
end
core_object_pcap_t = ffi.metatype(t_name, { __index = Pcap })
-- dnsjit.core.object (3),
-- dnsjit.input.pcap (3),
-- dnsjit.input.fpcap (3),
-- dnsjit.input.mmpcap (3),
-- dnsjit.filter.layer (3),
-- dnsjit.output.pcap (3)
return Pcap

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/tcp.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_tcp_t* core_object_tcp_copy(const core_object_tcp_t* self)
{
core_object_tcp_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_tcp_t)));
memcpy(copy, self, sizeof(core_object_tcp_t));
copy->obj_prev = 0;
return copy;
}
void core_object_tcp_free(core_object_tcp_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_tcp_h
#define __dnsjit_core_object_tcp_h
#include <stddef.h>
#include <dnsjit/core/object/tcp.hh>
#define CORE_OBJECT_TCP_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_TCP, prev) \
, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
{ 0 }, 0 \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_tcp {
const core_object_t* obj_prev;
int32_t obj_type;
uint16_t sport;
uint16_t dport;
uint32_t seq;
uint32_t ack;
uint8_t off : 4;
uint8_t x2 : 4;
uint8_t flags;
uint16_t win;
uint16_t sum;
uint16_t urp;
uint8_t opts[64];
size_t opts_len;
} core_object_tcp_t;
core_object_tcp_t* core_object_tcp_copy(const core_object_tcp_t* self);
void core_object_tcp_free(core_object_tcp_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.tcp
-- A TCP segment header
--
-- A TCP segment header.
-- The data itself is in the
-- .I dnsjit.core.object.payload
-- object, which is the next object in the chain after parsing with,
-- for example,
-- .IR dnsjit.filter.layer .
-- .SS Attributes
-- .TP
-- sport
-- Source port.
-- .TP
-- dport
-- Destination port.
-- .TP
-- seq
-- Sequence number.
-- .TP
-- ack
-- Acknowledgement number.
-- .TP
-- off
-- Data offset.
-- .TP
-- x2
-- Unused.
-- .TP
-- flags
-- TCP flags.
-- .TP
-- win
-- Window.
-- .TP
-- sum
-- Checksum.
-- .TP
-- urp
-- Urgent pointer.
-- .TP
-- opts
-- Array of bytes with the TCP options found.
-- .TP
-- opts_len
-- Length of the TCP options.
module(...,package.seeall)
require("dnsjit.core.object.tcp_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_tcp_t"
local core_object_tcp_t
local Tcp = {}
-- Return the textual type of the object.
function Tcp:type()
return "tcp"
end
-- Return the previous object.
function Tcp:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Tcp:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Tcp:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Tcp:copy()
return C.core_object_tcp_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Tcp:free()
C.core_object_tcp_free(self)
end
core_object_tcp_t = ffi.metatype(t_name, { __index = Tcp })
-- dnsjit.core.object (3),
-- dnsjit.core.object.payload (3),
-- dnsjit.filter.layer (3)
return Tcp

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/object/udp.h"
#include "core/assert.h"
#include <stdlib.h>
#include <string.h>
core_object_udp_t* core_object_udp_copy(const core_object_udp_t* self)
{
core_object_udp_t* copy;
glassert_self();
glfatal_oom(copy = malloc(sizeof(core_object_udp_t)));
memcpy(copy, self, sizeof(core_object_udp_t));
copy->obj_prev = 0;
return copy;
}
void core_object_udp_free(core_object_udp_t* self)
{
glassert_self();
free(self);
}

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#include <dnsjit/core/timespec.h>
#ifndef __dnsjit_core_object_udp_h
#define __dnsjit_core_object_udp_h
#include <stddef.h>
#include <dnsjit/core/object/udp.hh>
#define CORE_OBJECT_UDP_INIT(prev) \
{ \
CORE_OBJECT_INIT(CORE_OBJECT_UDP, prev) \
, \
0, 0, 0, 0, \
}
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef struct core_object_udp {
const core_object_t* obj_prev;
int32_t obj_type;
uint16_t sport;
uint16_t dport;
uint16_t ulen;
uint16_t sum;
} core_object_udp_t;
core_object_udp_t* core_object_udp_copy(const core_object_udp_t* self);
void core_object_udp_free(core_object_udp_t* self);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.object.udp
-- A UDP datagram header
--
-- A UDP datagram header.
-- The data itself is in the
-- .I dnsjit.core.object.payload
-- object, which is the next object in the chain after parsing with,
-- for example,
-- .IR dnsjit.filter.layer .
-- .SS Attributes
-- .TP
-- sport
-- Source port.
-- .TP
-- dport
-- Destination port.
-- .TP
-- ulen
-- UDP length (as described in the UDP header).
-- .TP
-- sum
-- Checksum.
module(...,package.seeall)
require("dnsjit.core.object.udp_h")
local ffi = require("ffi")
local C = ffi.C
local t_name = "core_object_udp_t"
local core_object_udp_t
local Udp = {}
-- Return the textual type of the object.
function Udp:type()
return "udp"
end
-- Return the previous object.
function Udp:prev()
return self.obj_prev
end
-- Cast the object to the underlining object module and return it.
function Udp:cast()
return self
end
-- Cast the object to the generic object module and return it.
function Udp:uncast()
return ffi.cast("core_object_t*", self)
end
-- Make a copy of the object and return it.
function Udp:copy()
return C.core_object_udp_copy(self)
end
-- Free the object, should only be used on copies or otherwise allocated.
function Udp:free()
C.core_object_udp_free(self)
end
core_object_udp_t = ffi.metatype(t_name, { __index = Udp })
-- dnsjit.core.object (3),
-- dnsjit.core.object.payload (3),
-- dnsjit.filter.layer (3)
return Udp

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.objects
-- Easy way to import all objects
-- require("dnsjit.core.objects")
--
-- Helper module to require all available objects, returns what
-- .I dnsjit.core.object
-- returned so that constants like object types can be used.
module(...,package.seeall)
local object = require("dnsjit.core.object")
require("dnsjit.core.object.pcap")
require("dnsjit.core.object.ether")
require("dnsjit.core.object.null")
require("dnsjit.core.object.loop")
require("dnsjit.core.object.linuxsll")
require("dnsjit.core.object.ieee802")
require("dnsjit.core.object.gre")
require("dnsjit.core.object.ip")
require("dnsjit.core.object.ip6")
require("dnsjit.core.object.icmp")
require("dnsjit.core.object.icmp6")
require("dnsjit.core.object.udp")
require("dnsjit.core.object.tcp")
require("dnsjit.core.object.payload")
require("dnsjit.core.object.dns")
-- dnsjit.core.object (3),
-- dnsjit.core.object.pcap (3),
-- dnsjit.core.object.ether (3),
-- dnsjit.core.object.null (3),
-- dnsjit.core.object.loop (3),
-- dnsjit.core.object.linuxsll (3),
-- dnsjit.core.object.ieee802 (3),
-- dnsjit.core.object.gre (3),
-- dnsjit.core.object.ip (3),
-- dnsjit.core.object.ip6 (3),
-- dnsjit.core.object.icmp (3),
-- dnsjit.core.object.icmp6 (3),
-- dnsjit.core.object.udp (3),
-- dnsjit.core.object.tcp (3),
-- dnsjit.core.object.payload (3),
-- dnsjit.core.object.dns (3)
return object

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/producer.h"

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#ifndef __dnsjit_core_producer_h
#define __dnsjit_core_producer_h
#include <dnsjit/core/producer.hh>
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef const core_object_t* (*core_producer_t)(void* ctx);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.producer
-- Producer interfaces
-- require("dnsjit.core.producer_h")
--
-- Producer interfaces are used by input, filter and output modules to pass
-- objects for processing.
module(...,package.seeall)
-- dnsjit.core.object (3)
return

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "core/receiver.h"

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/object.h>
#ifndef __dnsjit_core_receiver_h
#define __dnsjit_core_receiver_h
#include <dnsjit/core/receiver.hh>
#endif

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.object_h")
typedef void (*core_receiver_t)(void* ctx, const core_object_t* obj);

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-- Copyright (c) 2018-2021, OARC, Inc.
-- All rights reserved.
--
-- This file is part of dnsjit.
--
-- dnsjit is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- dnsjit is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
-- dnsjit.core.receiver
-- Receiver interfaces
-- require("dnsjit.core.receiver_h")
--
-- Receiver interfaces are used by input, filter and output modules to pass
-- objects for processing.
module(...,package.seeall)
-- dnsjit.core.object (3)
return

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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "globals.h"
#include "core/assert.h"
#include "core/thread.h"
#include <string.h>
#include <lualib.h>
#include <lauxlib.h>
static core_log_t _log = LOG_T_INIT("core.thread");
static core_thread_t _defaults = {
LOG_T_INIT_OBJ("core.thread"),
0, 0, 0, 0,
PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER,
0, 0
};
core_log_t* core_thread_log()
{
return &_log;
}
void core_thread_init(core_thread_t* self)
{
mlassert_self();
*self = _defaults;
}
void core_thread_destroy(core_thread_t* self)
{
core_thread_item_t* item;
mlassert_self();
free(self->bytecode);
while ((item = self->stack)) {
self->stack = item->next;
free(item);
}
}
static void* _thread(void* vp)
{
core_thread_t* self = (core_thread_t*)vp;
lua_State* L;
mlassert_self();
// TODO: move to dnsjit_newstate()
L = luaL_newstate();
lassert(L, "could not create new Lua state");
luaL_openlibs(L);
dnsjit_globals(L);
for (;;) {
lua_getfield(L, LUA_GLOBALSINDEX, "require");
lua_pushstring(L, "dnsjit.core.thread");
if (lua_pcall(L, 1, 1, 0)) {
lcritical("%s", lua_tostring(L, -1));
break;
}
lua_getfield(L, -1, "_in_thread");
lua_pushlightuserdata(L, (void*)self);
lua_pushlstring(L, self->bytecode, self->bytecode_len);
if (lua_pcall(L, 2, 0, 0)) {
lcritical("%s", lua_tostring(L, -1));
}
break;
}
lua_close(L);
return 0;
}
int core_thread_start(core_thread_t* self, const char* bytecode, size_t len)
{
int err;
mlassert_self();
if (self->bytecode) {
lfatal("bytecode already set");
}
lfatal_oom(self->bytecode = malloc(len));
memcpy(self->bytecode, bytecode, len);
self->bytecode_len = len;
if ((err = pthread_create(&self->thr_id, 0, _thread, (void*)self))) {
lcritical("pthread_create() error: %s", core_log_errstr(err));
return -1;
}
return 0;
}
int core_thread_stop(core_thread_t* self)
{
int err;
mlassert_self();
if ((err = pthread_join(self->thr_id, 0))) {
lcritical("pthread_join() error: %s", core_log_errstr(err));
return -1;
}
return 0;
}
inline static void _push(core_thread_t* self, core_thread_item_t* item)
{
if (pthread_mutex_lock(&self->lock)) {
lfatal("mutex lock failed");
}
if (!self->last) {
self->stack = self->last = item;
} else {
self->last->next = item;
self->last = item;
}
if (pthread_cond_signal(&self->cond)) {
lfatal("cond signal failed");
}
if (pthread_mutex_unlock(&self->lock)) {
lfatal("mutex unlock failed");
}
}
void core_thread_push(core_thread_t* self, void* ptr, const char* type, size_t type_len, const char* module, size_t module_len)
{
core_thread_item_t* item;
mlassert_self();
lassert(ptr, "ptr is nil");
lassert(type, "type is nil");
lassert(type_len, "type_len is zero");
lassert(module, "module is nil");
lassert(module_len, "module_len is zero");
lfatal_oom(item = malloc(sizeof(core_thread_item_t) + type_len + module_len + 2));
item->next = 0;
item->ptr = ptr;
item->type = ((void*)item) + sizeof(core_thread_item_t);
memcpy(item->type, type, type_len);
item->type[type_len] = 0;
item->module = item->type + type_len + 1;
memcpy(item->module, module, module_len);
item->module[module_len] = 0;
_push(self, item);
}
void core_thread_push_string(core_thread_t* self, const char* str, size_t len)
{
core_thread_item_t* item;
mlassert_self();
lassert(str, "str is nil");
lassert(len, "len is zero");
lfatal_oom(item = malloc(sizeof(core_thread_item_t) + len + 1));
item->next = 0;
item->ptr = 0;
item->str = ((void*)item) + sizeof(core_thread_item_t);
memcpy(item->str, str, len);
item->str[len] = 0;
_push(self, item);
}
void core_thread_push_int64(core_thread_t* self, int64_t i64)
{
core_thread_item_t* item;
mlassert_self();
lfatal_oom(item = malloc(sizeof(core_thread_item_t)));
item->next = 0;
item->ptr = 0;
item->str = 0;
item->i64 = i64;
_push(self, item);
}
const core_thread_item_t* core_thread_pop(core_thread_t* self)
{
mlassert_self();
if (pthread_mutex_lock(&self->lock)) {
lfatal("mutex lock failed");
}
if (!self->at) {
while (!self->stack) {
if (pthread_cond_wait(&self->cond, &self->lock)) {
lfatal("cond wait failed");
}
}
self->at = self->stack;
} else {
while (!self->at->next) {
if (pthread_cond_wait(&self->cond, &self->lock)) {
lfatal("cond wait failed");
}
}
self->at = self->at->next;
}
if (pthread_mutex_unlock(&self->lock)) {
lfatal("mutex unlock failed");
}
return self->at;
}

31
include/dnsjit/core/thread.h Normal file
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@ -0,0 +1,31 @@
/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include <dnsjit/core/log.h>
#ifndef __dnsjit_core_thread_h
#define __dnsjit_core_thread_h
#include <pthread.h>
#include <unistd.h>
#include <dnsjit/core/thread.hh>
#endif

56
include/dnsjit/core/thread.hh Normal file
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@ -0,0 +1,56 @@
/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
//lua:require("dnsjit.core.compat_h")
//lua:require("dnsjit.core.log")
typedef struct core_thread_item core_thread_item_t;
struct core_thread_item {
core_thread_item_t* next;
void* ptr;
char * type, *module;
char* str;
int64_t i64;
};
typedef struct core_thread {
core_log_t _log;
pthread_t thr_id;
core_thread_item_t * stack, *last;
const core_thread_item_t* at;
pthread_mutex_t lock;
pthread_cond_t cond;
char* bytecode;
size_t bytecode_len;
} core_thread_t;
core_log_t* core_thread_log();
void core_thread_init(core_thread_t* self);
void core_thread_destroy(core_thread_t* self);
int core_thread_start(core_thread_t* self, const char* bytecode, size_t len);
int core_thread_stop(core_thread_t* self);
void core_thread_push(core_thread_t* self, void* ptr, const char* type, size_t type_len, const char* module, size_t module_len);
void core_thread_push_string(core_thread_t* self, const char* str, size_t len);
void core_thread_push_int64(core_thread_t* self, int64_t i64);
const core_thread_item_t* core_thread_pop(core_thread_t* self);

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