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Merging upstream version 2.3.1.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
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Daniel Baumann 2025-04-24 13:53:01 +02:00
parent f3ce14142a
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Signed by: daniel
GPG key ID: FBB4F0E80A80222F
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2025-04-24 Jerry Lundström
Release 2.3.1
This patch release fixes issues on 32bit systems when they are using
64bit time structures (`_TIME_BITS` set to 64) and updates pcap-thread
to require libpcap with `DLT_LINUX_SLL2` support.
a5e9a4a pcap-thread v4.1.1
731d9e0 Add support for 64bit time structures on 32bit systems
2025-04-17 Jerry Lundström
Release 2.3.0
This release adds support for Linux cooked v2 link-type, a new output
format, a new plugin and fixes a couple of issues.
The new output format `tcpdns` can be used to generate a file with the
DNS as a TCP stream, first 16bit size (network order) then the DNS
message, which is compatible with `dnsperf -B`.
The new plugin `asudp` can be used to rewrite outgoing packet by taking
the DNS that's found and construct UDP packets from it.
Other changes:
- Fix #314:
- man-page: Clarify that `pktsize` is shown before parsing the IP packet
- `-g`: Quote `,` characters
- Fix #316: Fix handling of L2/ethernet frames that are larger than the IPv4/v6 packet
- Fix multiple print statements w.r.t. `size_t`/`struct timeval`, `%zu`/`%ld` and type casting
- Handle extension function pointers better
- Clarify that `-C` counts uncompressed output
- Block PCAP output if TCP reassemble is used
- Increase maximum DNS messages in a reassembled TCP message
- Add new extension interface for setting output packet
- Update pcap-thread to v4.1.0
e689bc8 pcap-thread v4.1.0
29d184b DLT_LINUX_SLL2
ba793a9 Fixes, asudp plugin, tcpdns output format
6c133d4 Ethernet padding
420548a Diag output
8b92a52 SPEC
a3fb1dd Mailing-list
2024-09-10 Jerry Lundström
Release 2.2.1
This patch release fixes the BPF to correct capture ICMPv6, a typo in
the filter had it matching "ip" and not "ip6".
Other changes are updates to GitHub workflows and man-pages.
ea82cd1 Copyright
aa14a9f ICMP BPF filter
6ef17e2 Badges
6722677 Workflow
1cb22f0 Man-page opt, Dumper
2023-08-23 Jerry Lundström
Release 2.2.0
This release adds anonymization of EDNS Client Subnet to all
anonymizer plugins and improves TCP state handling by adding a hash
table for lookup rather than walking a list.
Plugins that anonymize can now take two new options:
- `-e`: also anonymize EDNS Client Subnet
- `-E`: only anonymize EDNS Client Subnet
Other changes:
- Cleanup and improvements to building and testing
- Mention PowerTools repository for building on CentOS etc
- Remove old workarounds in tests before #133
d4e0b2c TCP state hash table
1ea8d3f Doc
12ea061 EDNS Client Subnet anonymization
c9ed7be pcap-dist
b76f745 Cleanup
7682d41 hashtbl
2023-06-27 Jerry Lundström
Release 2.1.3
This release fixes a memory leak when using pattern matching options
`-x` or `-X`, the LDNS packet was not freed correctly.
The processing of the LDNS packet during matching has also been
improved.
3990795 Test
ee5d554 Pattern match
2023-06-15 Jerry Lundström
Release 2.1.2
This release fixes reusing of TCP state during an out-of-memory event,
the reused structure was not cleared of old information. And fixes
compatibility with OpenSSL v3.0+ due to deprecated functions.
756f78a OpenSSL 3.0+
d2bd12f tcpstate on out of memory
2023-02-03 Jerry Lundström
Release 2.1.1
This release includes fixes to TCP state code, anonymizing plugins and
handling of EDNS extended error code.
- Ken Renards @kdrenard (PR #275) fixed handling of EDNS extended error
code, the previous code looked at `arcount` but ldns "consumes" OPT
records so the count could be zero even with existing extended error
code.
- Changed anonymizing plugins to anonymize both sending and receiving
IP address if both used the server port, part of issue #276 reported
by Duane Wessels @wessels. This fixes situations where clients
weren't anonymize because they sent using that port.
- Fixed multiple issues with garbage collection in TCP state handling.
It was reusing a pointer that was meant to return the current TCP
state so it could return the wrong state when garbage collection
was triggered.
It also just unlinked stale states and didn't free them, new code
uses the discard function so released state is also tagged as
"gc stale".
Lastly the discard function was fixed to clear the current TCP state
pointer used by plugins if the discarded state was it.
7f2ddcf Copyright
fd5b744 CodeQL alerts
726d241 TCP state GC
dff421e Anonymize clients
2eb8489 Add CodeQL workflow for GitHub code scanning
c5a0919 Better test for presence of EDNS option with extended error code
2022-09-09 Jerry Lundström
Release 2.1.0
This release adds a new option (`-o pid_file=<file>`) to specify a PID
file when running as daemon, corrects handling of LDNS include files
for some plugins and updates the Root Server Scaling Measurement (RSSM)
plugin w.r.t. the upcoming version 5 of RSSAC002 specifications.
The RSSM plugin can now optionally generate `label-count` metric. This
is enabled with `-L` and is tagged as `rssac002v5-draft` until v5 is
finalized.
The merge tool `dnscap-rssm-rssac002` has also been updated because of
this, there is now `--skip-unsupported` to skip all unsupported
RSSAC002 version metrics instead of `die()`'ing.
ca7707d RSSAC002v5 label-count metric
3ebee80 Made label count metric optional
41b029a Adding support for label acount metric
799c3fe Missing includes
7089f12 PID file
2022-06-13 Jerry Lundström
Release 2.0.3
Thanks to a patch from Duane Wessels (@wessels) this release fixes
an issue with filtering where DNS messages without a question section
would bypass it.
ba2112c Fix COPR
0e019ab Filtering
c7e1c8f Refactor and fix qtype and qname matching/filtering.
2022-03-08 Jerry Lundström
Release 2.0.2
Thanks to a patch from Duane Wessels (@wessels) this release fixes
memory leaks when using `-x`/`-X` regexp filtering due to incorrect
usage of LDNS library.
Other minor changes:
- Clarify what happens if you don't specify `-i` and add information about `any` and `all`
- Update debhelper compatibility level to 10
a8925a7 ldns_pkt_all() clones RRs which need to be freed with ldns_rr_list_deep_free()
5104814 Doc
30c36aa debhelper
4ae4356 Bye Travis
2021-03-11 Jerry Lundström
Release 2.0.1
Fixed incorrect line break in eventlog's (plugin) output.
5df363c remove trailing newline
2021-02-12 Jerry Lundström
Release 2.0.0
This major release contains three backward incompatible changes, two
new command line options and a completely restructured man-page(!),
please read the change notes carefully before upgrading!
The first backward incompatible change has to do with the removal of
libbind dependency. This library was causing segfaults on OpenBSD due to
shared (and overwritten) symbols with OpenBSD's libc.
It was replaced with LDNS and LDNS renders domain names as Fully
Qualified Domain Names (FQDN, the trailing dot!) so every output of a
domain name has been changed to a FQDN.
This also changes `-X`/`-x`, which will now match against FQDNs.
The second backward incompatible change is that `-6` has been removed.
This was used to alter the BPF in order to "fix" it, dnscap adds
specific filters to IP and UDP headers which does not work for IPv6
traffic.
The generated BPF has been changed to allow IPv6 to always pass, making
the option obsolete. IPv6 filtering is then done in dnscap.
The last backward incompatible change has to do with the output format
of `-g` related to EDNS0 and is now more consistent with the rest of
the parsable output:
- No more spaces in the output
- Fix incorrect `\` and extra empty new-line
- All EDNS0 options are added after `edns0[...]` using comma separation, example: `edns0[],edns0opt[],...`
- Client Subnet format: `edns0opt[ECS,family=nn,source=nn,scope=nn,addr=...]`
- Unknown/unsupported code: `edns0opt[code=nn,codelen=nn]`
- Parsing error messages have changed, they came from libbind, now comes from LDNS
New options:
- Add `-q` and `-Q` to filter on matched/not matched QTYPE
Bugfixes:
- Fix memory leak in EDNS0 ECS address parsing
- `network`: Fix sonarcloud issues, potential `memcpy()` of null pointer
Other changes:
- Fix CBOR output inclusion, LDNS is always available now
- Add macros for Apple and Windows endian functions
- Restructure and correct the man-page
557e5f5 man-page
025529f v6bug, interval
37b79e9 FQDN
ebcf434 QTYPE match, args, tests
0cb5562 v6bug
75f6115 Endian
aaeb213 Sonarcloud
8685946 CBOR output
3e26802 Sonarcloud
30aa366 libbind
3f94d0b Mattermost
2020-10-22 Jerry Lundström
Release 1.12.0
This release fixes the handling of `-?` option for dnscap and all plugins,
previously the handling varied between places and depending on `getopt()`
implementation an invalid option could return the wrong exit code.
Other changes:
- Fix typo in configure help text
- `plugins/anonmask`: Fix typo in help text
- `plugins/rzkeychange`:
- Add `-D`, dry run mode, for testing
- Fix handling of `-a` and error on too many
KNOWN ISSUES:
On OpenBSD the system library libc exports the same symbols as libbind
does and this causes runtime warnings. Until now this has not caused any
known problems but is now also causing segfaults if the packet filter used
(BPF) includes IPv6 addresses.
On all other platforms OARC supports, these symbols are macros and in so
should not cause any problem.
ee478c0 Known issues
2f9d957 Tests
3c663a2 Tests
c88efc5 rzkeychange test
f062f33 Tests
2020-08-20 Jerry Lundström
Release 1.11.1
This release fixes a lot of issues found by code analysis, adds a
explicit memory zeroing function to remove account information (read
when dropping privileges) and adds code coverage reporting.
The `dnscap_memzero()` will use `explicit_bzero()` on FreeBSD and
OpenBSD, or `memset_s()` (if supported), otherwise it will manually
set the memory to zero. This will hopefully ensure that the memory
is zeroed as compilers can optimize out `memset()`'s that is just
before `free()`.
The plugins exit code for the help option `-?` has been changed to 0
to have the same as `dnscap -?`.
d9747ee memzero
1cf17c6 Coverage
19c7120 Coverage
7435676 Sonarcloud
928e181 Sonarcloud
ca4afd0 Sonarcloud
028f5e0 Badges
db0d6a1 LGTM
2020-06-01 Jerry Lundström
Release 1.11.0
This release includes a new plugin called `eventlog`, contributed
by Byron Darrah (@ByronDarrah), output DNS activity as log events,
including answers to A and AAAA queries.
Other changes includes compile warning and code analysis fixes.
382eac4 COPR
4c03650 Compile warn
21d6a67 Slight change -- wording now matches usage() output.
dd19b0b Added the eventlog.so plugin...
1ebf504 Added new dnscap plugin: evenlog.so...
f3f9aaa Compile warnings
2020-03-02 Jerry Lundström
Release 1.10.4
Fixed a bug that would not drop privileges when not specifying any
interface (which is equal to capturing on all interfaces).
Added functionality to set the supplemental groups when dropping
privileges and changing user, or clear them if that is not supported.
Other changes includes corrected man-page about '-w' and update to
documentation.
a0285e4 drop privileges errors, initgroups/setgroups
96336f3 daemon: Attempt to drop supplemental groups
467a9a7 Drop privileges
de940a8 man-page -w
187ec43 README
2019-10-02 Jerry Lundström
Release 1.10.3
Fixed plugins inclusion in deb packages for Debian and Ubuntu.
017ebb2 Deb packages
cf59143 COPR, spec
2019-08-05 Jerry Lundström
Release 1.10.2
Fixed bug in the handling of defragmentation configuration which lead
to the use of a local scope variable later on and caused unexpected
behavior.
91692b8 Frag conf
6a74376 Package
d0d1a6d Package
2019-07-08 Jerry Lundström
Release 1.10.1
Fix various issues found by code analysis tools, a few compiler warnings
removed, undefined bit shift behavior fixed, parameter memory leaks
plugged and documentation updates.
Fixes:
- `dump_dns`: Remove usage of `strcpy()` and use `snprintf()` instead
of `sprintf()`
- `bpft`:
- Use `text_ptr->len` to store length of generated text
- Use `memcpy()` instead of `strcat()`
- Remove unneeded `realloc()` and `strcpy()`
- `plugins/cryptopan`: Fix strict-aliasing warnings
- `network`: Rework part of `dl_pkt()` to remove usage of `strcpy()`
and use `snprintf()` instead of `sprintf()`
- `plugins/anonaes128`: Use `a6` as dest when copying v4 addresses for
readability and code analysis
- `plugins/cryptopan`: Run first pass separate to eliminate a 32bit
shift by 32 (undefined behavior)
- `plugins/cryptopant`: Fix memory leak of `keyfile` if `-k` is
specified more then once
Documentation:
- Update `README.md` with correction to building from git and note
about PCAP on OpenBSD
- Fix #190: Update link to `libbind` source
074923c Funding
5d2e84c libbind
8ee9f2a Travis-CI
6babd09 Fixes
bb2d1c7 README, compile warnings
0d9cd9c LGTM, Travis-CI
2018-12-03 Jerry Lundström
Release 1.10.0
This release adds a new plugin type "filter" and 5 new plugins that can
do anonymization, deanonymization and masking of the IP addresses.
New features:
- Check plugins for `pluginname_type()` which returns `enum plugin_type`,
if missing the plugin is counted as an "output" plugin
- New plugin type "filter" which calls `pluginname_filter()` prior of
outputting any data or calling of "output" plugins, if the new function
returns non-zero then the packet is filtered out (dropped)
- New extension `DNSCAP_EXT_SET_IADDR` that gives access to a function
for setting the from and to IP addresses both in the extracted data
and the wire
New plugins:
- `anonaes128`: Anonymize IP addresses using AES128
- `anonmask`: Pseudo-anonymize IP addresses by masking them
- `cryptopan`: Anonymize IP addresses using an extension to Crypto-PAn
(College of Computing, Georgia Tech) made by David Stott (Lucent)
- `cryptopant`: Anonymize IP addresses using cryptopANT, a different
implementation of Crypto-PAn made by the ANT project at USC/ISI
- `ipcrypt`: Anonymize IP addresses using ipcrypt create by
Jean-Philippe Aumasson
Bugfixes:
- Fix changing `royparse` and `txtout` with other plugins (thanks to
Duane Wessels and Paul Hoffman)
- Free pointers to allocated strings in `text_free()` (thanks to Michał
Kępień)
- Fix IP checksum calculation
Other changes:
- `-B` and `-E` can be used without `-w` (thanks to Duane Wessels)
- Use `pcap_findalldevs()` instead of `pcap_lookupdev()` (thanks to
Michał Kępień)
- Document and add `-?` option to all plugins
- Fix clang `scan-build` bugs and LGTM alerts
- Use `gmtime_r()` instead of `gmtime()`
- Update `pcap-thread` to v4.0.0
67d8e2c Fix
fb0ed02 Plugin documentation
a2c9a6c cryptopant
39db1ca Deanonymize, IPv6 test
afc7107 Crypto-PAn, cryptopANT
f1912cc OpenSSL, anonaes128
f2bab62 ipcrypt, anonmask
158b1e7 anonmask help
60ece58 anonmask
8f1b138 Plugin types, filter plugin, set iaddr extension, anonymization
by masking
b7d7991 IP checksum
641a23a Free pointers to allocated strings in text_free()
4d313bf pcap_findalldevs()
091e0ca Use pcap_findalldevs() instead of pcap_lookupdev()
6a7b25e Clean up use of feature test macros on Linux
cbba14c Configure, uninitialized
f228c9c Code formatting
3fd738c man-page
770168a Test
714e4f5 Fix -B <begin> so that it works when reading offline pcap files.
8675bea Test
911fec9 Implementing test9 as a test of -B and -E command line args.
a7cc72d -B <begin> and -E <end> can work fine without -w <base>.
04c4928 Made the same changes to txtout as were in 165a786
165a786 Workaround for stdio mystery causing duplicate royparse output.
2018-02-28 Jerry Lundström
Release 1.9.0
This release adds a new option to change how the Berkeley Packet Filter
is generated to include the host restrictions for all selections,
previously this restriction would only apply to specific parts.
Additional tweaks to the RSSM plugin has been made to conform to the
RSSAC002v3 specification. One noticeable change is that the plugin now
requires the DNS to be parsed before counted, any error in the parsing
will result in the message being left out of the statistics.
Changes:
- Fix spacing in BPF filter to look better
- Fix #146: Add `bpf_hosts_apply_all`, apply any host restriction to all
- `plugin/rssm`:
- Remove quoting of `start-period` and correctly handle empty hashes
- Issue #152, Issue #91: Parse DNS before processing RSSM counters
- `plugin/rssm/dnscap-rssm-rssac002`: Use `YAML::Dump()` for output
47d892b Issue #152: RSSM YAML output
d4f1466 Issue #152, Issue #91: Parse DNS before processing RSSM counters
68fc1ff BPF, `bpf_hosts_apply_all`
2018-02-07 Jerry Lundström
Release 1.8.0
This release updates the TCP stream code in order to be able to look
at more then just the first query, for handling already ongoing TCP
connections without having seen SYN/ACK and for reassembly of the TCP
stream prior of parsing it for DNS with an additional layer of parsing
(see `reassemble_tcp_bfbparsedns`).
Updates to the Root Server Scaling Measurement (RSSM) plugin have also
been made to bring it up to date with RSSAC002v3 specification, be
able to output the YAML format described and an additional script to
merge YAML files if the interval is less then the RSSAC002v3 24 hour
period. See "Updates to the RSSM plugin" below and
`plugins/rssm/README.md`.
New extended options:
- `parse_ongoing_tcp`: Start tracking TCP connections even if SYN/ACK
has not been seen
- `allow_reset_tcpstate`: Allow external reset of TCP state
- `reassemble_tcp`: Use to enable TCP stream reassembly
- `reassemble_tcp_faultreset`: Number of faults before reseting TCP
state when reassembly is enabled
- `reassemble_tcp_bfbparsedns`: Enable an experimental additional layer
of reassemble that uses `libbind` to parse the payload before accepting
it. If the DNS is invalid it will move 2 bytes within the payload and
treat it as a new payload, taking the DNS length again and restart
the process. Requires `libbind` and `reassemble_tcp`.
New extension functions for plugins:
- `DNSCAP_EXT_TCPSTATE_GETCURR`: Function to get a pointer for the
current TCP state
- `DNSCAP_EXT_TCPSTATE_RESET`: Function to reset a TCP state
New features:
- Parse additional DNS queries in TCP connections
- `-g` and the `txtout` plugin will reset TCP state (if allowed) on
failure to parse DNS
Bugfixes:
- Fix `-g` output, separate error message with a space
- Fix TCP packets wrongfully flagged as DNS when using layers.
- Fix TCP debug output when using layers, `ia_str()` is not safe to call
twice in the same `printf` because of local buffer.
- Fix exported extension functions, need to be file local
New tests for:
- Multiple DNS queries in one TCP connection
- Query over TCP without SYN
- Queries over TCP with first query missing length
- Queries over TCP with middle payloads missing
- Add test with TCP stream that missing multiple packets in the middle
Updates to the RSSM plugin (`plugins/rssm`):
- Add info about saving counts and sources
- Fix memory leak on `fopen()` errors
- Update to RSSAC002v3 specification
- New options:
- `-D` to disable forking on close
- `-Y`: Use RSSAC002v3 YAML format when writing counters, the file
will contain multiple YAML documents, one for each RSSAC002v3 metric
Used with; -S adds custom metric `dnscap-rssm-sources` and -A adds
`dnscap-rssm-aggregated-sources`
- `-n`: Set the service name to use in RSSAC002v3 YAML
- `-S`: Write source IPs into counters file with the prefix `source`
- `-A`: Write aggregated IPv6(/64) sources into counters file with
the prefix `aggregated-source`
- `-a`: Write aggregated IPv6(/64) sources to
`<name>.<timesec>.<timeusec>`
- Add `dnscap-rssm-rssac002` Perl script for merging RSSAC002v3 YAML files
- Add README.md for the plugin man-page for `dnscap-rssm-rssac002`
- Add test for YAML output and merging of YAML files
c7058c8 Use file local functions for all extensions
66b352d RSSM RSSAC002v3 YAML Tool
b09efc2 `plugins/rssm` RSSAC002v3
709aba6 Fix #89: Add additional reassembly layers that parses the
payload byte for byte for valid DNS
04fa013 Fix CID 1463944 (again)
b1cf623 RSSM saving data and forking
fb23305 Fix CID 1463944
0fca1a8 Issue #89: TCP stream reassemble
bb6428c CID 1463814: Check `ns_initparse()` for errors
a57066f Fix #88: TCP handling
2017-12-27 Jerry Lundström
Release 1.7.1
The library used for parsing DNS (libbind) is unable to parse DNS
messages when there is padding at the end (the UDP/TCP payload is larger
then the DNS message). This has been fixed by trying to find the actual
DNS message size, walking all labels and RR data, and then retry parsing.
Other changes and bug-fixes:
- Fix size when there is a VLAN to match output of `use_layers` yes/no
- Add test of VLAN matching
- Fix `hashtbl.c` building in `rssm`
- Add test with padded DNS message
49e5400 Fix #127: If `ns_initparse()` returns `EMSGSIZE`, try and get
actual size and reparse
99bda0b Fix #98: VLAN
2017-12-19 Jerry Lundström
Release 1.7.0
This release adds IP fragmentation handling by using layers in pcap-thread
which also adds a new flag to output and modules. `DNSCAP_OUTPUT_ISLAYER`
indicates that `pkt_copy` is equal to `payload` since the layers of the
traffic have already been parsed. IP fragments are reassembled with the
`pcap_thread_ext_frag` extension that is included in pcap-thread.
New extended (`-o`) options:
- `use_layers`: Use pcap-thread layers to handle the traffic
- `defrag_ipv4`: Enabled IPv4 de-fragmentation
- `defrag_ipv6`: Enabled IPv6 de-fragmentation
- `max_ipv4_fragments`: Set maximum fragmented IPv4 packets to track
- `max_ipv4_fragments_per_packet`: Set the maximum IPv4 fragments per
tracked packet
- `max_ipv6_fragments`: Set maximum fragmented IPv6 packets to track
- `max_ipv6_fragments_per_packet`: Set the maximum IPv6 fragments per
tracked packet
Currently `-w` does not work with `use_layers` and the plugins `pcapdump`
and `royparse` will discard output with the flag `DNSCAP_OUTPUT_ISLAYER`
because they need access to the original packet.
The `rzkeychange` plugin now encodes certain flag bits in the data that
it reports for RFC8145 key tag signaling. The flags of interest are:
`DO`, `CD`, and `RD`. These are encoded in an bit-mask as a hexadecimal
value before the `_ta` component of the query name.
Other changes and bug-fixes:
- Fix #115: document `-g` output, see `OUTPUT FORMATS` `diagnostic` in
`dnscap(1)` man-page
- Add test to match output from non-layers runs with those using layers
- Add test with fragmented DNS queries
- Fix #120: CBOR/CDS compiles again, update tinycbor to v0.4.2
- Fix `ip->ip_len` byte order
- Fix parsing of IP packets with padding or missing parts of payload
0347f74 Add AUTHORS section in man-page
ef1b68c Fix CID 1463073
8a79f89 Layers
a404d08 Update pcap-thread to v3.1.0, add test for padding fixes
08402f1 Fix byte order bug. ip->ip_len must be evaluated with ntohs().
d6d2340 CBOR/CDS and formatting
85ec2d8 Fix #87: IP fragmentation reassembly
22bfd4a Documentation
c35f19f Adding flag bits to rzkeychange RFC8145 key tag signaling data.
This may be useful to find "false" key tag signals from sources
that don't actually perform DNSSEC validation.
2017-12-01 Jerry Lundström
Release 1.6.0
New additions to the plugins:
- `rzkeychange` can now collect RFC8145 key tag signaling. Signals are
saved during the collection interval, and then sent to the specified
`-k <zone>`, one at a time, at the end of the interval. Only root zone
signals are collected. Added by Duane Wessels (@wessels).
- `royparse` is a new plugin to splits a PCAP into two streams, queries
in PCAP format and responses in ASCII format. Created by Roy Arends
(@RoyArends).
- `txtout` new option `-s` for short output, only print QTYPE and QNAME
for IN records. Added by Paul Hoffman (@paulehoffman)
- The extension interface has been extended with `DNSCAP_EXT_IA_STR` to
export the `ia_str()` function.
Bugfixes and other changes:
- Remove duplicated hashtbl code
- `rssm`: fix bug where count in table was taken out as `uint16_t` but
was a `uint64_t`
- Handle return values from hashtbl functions
- `txtout`: removed unused `-f` options
- Change `ia_str()` to use buffers with correct sizes, thanks to
@RoyArends for spotting this!
Commits:
3f78a31 Add copy/author text
1bd914d Fix CID 1462343, 1462344, 1462345
f9bb955 Fix `fprintf()` format for message size
abedf84 Fix #105: `inet_ntop` buffers
bfdcd0d Addresses the suggestions from Jerry.
dda0996 royparse :)
4f6520a royparse plugin finished
f1aa4f2 Fix #103: Remove `opt_f`
32355b7 Rearrange code to keep the change smaller and fix indentation
d6612c1 Added -s to txtout for short output
9d8d1ef Check return of `snprintf()`
55f5aba Format code
9f19ec3 Fixed memory leak in rzkeychange_keytagsignal()
58b8784 Fix memory leaks and better return value checks in
rzkeychange_submit_counts()
b06659f Add server and node to keytag signal query name
705a866 Always free response packets in rzkeychange plugin.
e802843 Implement RFC8145 key tag signal collection in rzkeychange plugin
5fbf6d0 Added extension for ia_str() so it can be used by rzkeychange
plugin.
3be8b8f Split `dnscap.c` into more files
e431d14 Fix #92: hashtbl
2017-08-21 Jerry Lundström
Release 1.5.1
Compatibility fixes for FreeBSD 11.1+ which is now packing `struct ip`
and for OpenBSD.
Commits:
17e3c92 FreeBSD is packing `struct ip`, need to `memcpy()`
f8add66 Code formatting
38cd585 Add documentation about libbind
d1dd55b Fix #82: Update dependencies for OpenBSD
2017-06-06 Jerry Lundström
Release 1.5.0
Added support for writing gzipped PCAP if the `-W` suffix ends with
`.gz` and made `-X` work without `-x`. New inteface for plugins to
tell them what extensions are available and a new plugin `rzkeychange`.
Plugin extensions:
- Call `plugin_extension(ext, arg)` to tell plugin what extensions exists
- Add extension for checking responder (`is_responder()`)
The rzkeychange plugin was developed by Duane Wessels 2016 in support
of the root zone ZSK size increase. It is also being used in support of
the 2017 root KSK rollover and collects the following measurements:
- total number of responses sent
- number of responses with TC bit set
- number of responses over TCP
- number of DNSKEY responses
- number of ICMP_UNREACH_NEEDFRAG messages received
- number of ICMP_TIMXCEED_INTRANS messages received
- number of ICMP_TIMXCEED_REASS messages received
Other fixes (author Duane Wessels):
- 232cbd0: Correct comment description for meaning of IPPROTO_AH
- 181eaa4: Add #include <sys/time.h> for struct timeval on NetBSD
Commits:
1d894e2 Make -x and -X work correctly together and update man-page
34bc54c Make the -X option work without requiring a -x option.
f43222e Fix CID 1440488, 1440489, 1440490
aa54395 Update pcap-thread to v2.1.3
81174ce Prepare SPEC for OSB/COPR
21d7468 New plugin rzkeychange and plugin extensions
38491a3 Config header is generated by autotools
419a8ab Small tweaks and fixes for gzip support
1967abc updated for earlier BSD versions
f135c90 added auto gzip if the -W suffix ends with .gz
Commits during development of rzkeychange (author Duane Wessels):
- 620828d: Add rzkeychange -z option to specify resolver IP addresses
- 1f77987: Add -p and -t options to rzkeychange plugin to configure an
alternate port and TCP. Useful for ssh tunnels.
- 2a571f1: Split ICMP time exceeded counter into two counters for time
exceeded due to TTL and another due to fragmentation
- e4ee2d3: The rzkeychange data collection plugin uses
`DNSCAP_EXT_IS_RESPONDER` extension to know if an IP address is a
"responder" or not, because when dnscap is instructed to collect ICMP
with -I, it processes all ICMP packets, not just those limited to
responders (or initiators).
- cee16b8: Add ICMP Time Exceeded to counters
- ad8a227: Counting source IPs has performance impacts. #ifdef'd out for
now add ICMP "frag needed" counts
- c25e72b: Implemented DNS queries with ldns. First there will be some
test queries to ensure the zone is reachable and configured to receive
data. Then a query naming the fields, followed by the periodic queries
delivering counts.
- fd23be7: Make report zone, server, node command line argumements mandatory
- 137789b: Adding rzkeychange plugin files
2017-03-29 Jerry Lundström
Release 1.4.1
Fixed an issue that when compiled with libpcap that had a specific
feature enabled it would result in a runtime error which could not be
worked around.
Also fixed various compatibility issues and updated dependency
documentation for CentOS.
Commits:
785d4c4 Fix compiler warnings
2d4df8d Fix #65: Update pcap-thread to v2.1.2
26d3fbc Fix #64: Add missing dependency
55e6741 Update pcap-thread to v2.1.1, fix issue with libpcap timestamp
type
c6fdb7a Fix typo and remove unused variables
2017-02-27 Jerry Lundström
Release 1.4.0
Until it can be confirmed that the threaded code works as well as the
non-threaded code it has been made optional and requires a configuration
option to enable it during compilation.
New extended option:
- `-o pcap_buffer_size=<bytes>` can be used to increase the capture
buffer within pcap-thread/libpcap, this can help mitigate dropped
packets by the kernel during breaks (like when closing dump file).
Commits:
1c6fbb2 Update copyright year
63ef665 Suppress OpenBSD warnings about symbols
2c99946 pcap-thread v2.0.0, disable threads, errors handling
4cade97 Fix #56: Update pcap-thread to v1.2.2 and add test
2016-12-23 Jerry Lundström
Release 1.3.0
Rare lockup has been fixed that could happen if a signal was received
in the wrong thread at the wrong time due to `pcap_thread_stop()`
canceling and waiting on threads to join again. The handling of signals
have been improved for threaded and non-threaded operations.
New features:
- Experimental CBOR DNS Stream format output, see `CBOR_DNS_STREAM.md`
- Extended options to specify user and group to use when dropping
privileges, see EXTENDED OPTIONS in man-page
Commits:
a5fa14e Signal and threads
3868104 Use old style C comments
7946be5 Clarify building
d5463b4 RPM spec and various automake fixes
df206bf Resource data indexing and documentation
0e2d0fe Fix #22, fix #43: Update README
5921d73 Add stream option RLABELS and RLABEL_MIN_SIZE
6dd6ec1 Implement experimental CBOR DNS Stream Format
4baf695 Fix #37: Extended options to specifty user/group to use when
dropping privileges
61d830a Fix #35: Use `AC_HEADER_TIME` and fix warning
2016-10-27 Jerry Lundström
Release 1.2.0
Update `pcap-thread` to v1.2.0 to get the new callback queue mode which
puts that mode into using pthread conditions if all pcaps are offline and
keeps us from losing packets.
Use `pcap_thread_dropback()` callback to get the notification when a
packet was dropped because the queue was full, indicating that we can't
process all the packets. Added this stats to the `-S` output as total
and per interface as `ptdrop`. Changed the output for each interface
to not cut of information, for example interface name was cut to
4 characters.
Other changes:
- Add extended options `-o <option>=<value>` because we are running out
of short options.
- Better handling of library checks and automake rules
- New option `-F <format>` to specify the format of the output in `-w`
- Add experimental CBOR output support
- LDNS is used to parse the packets
- Tinycbor is used to construct the CBOR output
- DNS-in-JSON draft [1] for representing the objects
- Check CBOR topic in README.md for more information
- When only reading offline pcap files it will not attempt to drop
privileges and add new option `-N` to explicitly not drop privileges.
Commits:
f42e23f Extended options and CBOR output format
a28f498 Fix #24: Handle packet drops
2308eaa Fix #26: Unable to drop GID to nobody, exiting.
82d65f2 Update pcap-thread to v1.1.2
[1] https://datatracker.ietf.org/doc/draft-hoffman-dns-in-json/
2016-10-11 Jerry Lundström
Release 1.1.0
The ownership of DNSCAP was transferred from ISC to DNS-OARC in
the summer of 2016 and this is the first release since that.
This project now uses Semantic Versioning and these are the changes
since the `dnscap-20160205` release (which can also be found using
the tag `v0.0.0-20160205`).
Highlights:
- Restructure repository and use autotools
- Compiled and tested on Debian, Ubuntu, CentOS, FreeBSD and OpenBSD
using Jenkins and Travis-CI
- Source code static analysis using Coverity Scan
- Compatibility fixes for FreeBSD, OpenBSD and OS X
- ABI change to `output()`, previous `isfrag` is now a `flags` that
represents what the packet is through a bitmask
- Use helper library `pcap-thread` when capturing to solve missing
packets during very low traffic
New command line options:
- `-V`: Prints version and then exits
- `-M`: Enable monitor mode on interfaces
- `-D`: Enable immediate mode on interfaces
- `-W`: Allow to specify a suffix for the pcap dump file
- `-C`: Limit/rotate capture after a certain amount of bytes
Special thanks to:
- Duane Wessels
- Paul Vixie
- Klaus Darilion
Commits:
bc7eb22 Update license after ownership transfer from ISC to DNS-OARC,
update contributors, add build badges and removed SuperFastHash
since apparently it was not used.
778e457 Add `-V` for displaying version and the exiting
71c2d79 Fix #12: Sync man-page and help text
33576ef Swap option C and D, C for this makes more sense. Also ensure
that `capturedbytes` is zero on start.
0077aff Correct dump trace with new `flags`
f9cbba0 Do not use dump suffix unless it set
4dd81d6 Update the man page
7435c49 Change new option C to D because C was already taken
813dddb Fix -B and -E, these options are supported only once
76f19d1 fix usage of -W
519b64f Add -Y option to short usage instructions
348c738 Fix -C feature: capturedbytes was not increased
3db6f94 Improve logging
b567bef New option -C: limit/rotate capture after a certain amount
of bytes
341abdf Add -W feature: allow to specify a suffix for the pcap dump
file, e. g.: '.pcap'
097a3b4 Count every packet which is sent to output(), not only
the normal ones.
75e5968 Close PCAPs after dumper_close() to have statistics still
available during dumper_close(). Otherwise we get a segfault
on shutdown.
c09d61a Add debian/ubuntu package files.
020f2aa Forgot about the compiler warnings and fix the last
Coverity Scan issue
00c834d More Coverity Scan fixes
ad2f230 Fix various Coverity Scan issues
606f0cd Update pcap thread to version 1.1.1
f065cd7 Fix #14: Add options `-M` and `-C` for monitor and
immediate mode, update help and man-page.
b872035 Update to pcap-thread version 1.1.0
1f30637 Update pcap_thread to v1.0.1, add travis check that dnscap
can run
b19efaa Building from Git repository instructions
b5460df Use `calloc()` instead of `malloc()` to be sure the memory
is zeroed
ae6a04d Use pcap_thread v1.0.0
9426a2d Update pcap_thread and add pcap stats
820b2f2 Update pcap_thread and support offline pcaps
a47dd67 Update pcap_thread
237a7a7 CentOS autoreconf complained
7b5568c Use pcap_thread
11d0388 Revert the changes on all lines that had NULL, 0 before.
7d6a7e4 Passing IPv6 fragment payloads may not currently be safe.
Needs more work. For now pass pkt=NULL to be safe for plugins.
ea8f9a4 Make the family of output() functions future proof with a flags
bitmask. Rather than separate 'isfrag' and 'isdns' flags,
they are now set as bitmasks in a single 'flags' value passed
to output() f
472a172 A change to the interface of the family of output() functions.
95a6e62 timeval.* are not unsigned
d3f32de Fix #1: Use NS_*SZ
e555871 Fix compiler warnings
3ed8f29 Fix #1
864cbd7 Can you change #ifdef __APPLE__ to check for the
arpa/nameser_compat.h header and include it if it exists?
796e8ea plugin/rssm needs to include arpa/nameser_compat.h for OS X
so that the HEADER struct is declared.
daf4bd3 In plugin/txtout silence compiler warnings about int vs short
e5bc24b plugin/pcapdump needs to include arpa/nameser_compat.h for OS X
so that the HEADER struct is declared.
0061b57 Work around configure problem detecting libresolv on Mac OS X
Without some #include files, the configure test won't find
the symbol res_mkquery() in libresolv on OS X. It is called
res_9_mkquery()
5309655 Mac OS X doesn't have setresuid() and setresgid().
This patch adds configure checks for setreuid() and setregid()
and will use those instead if the other versions are
not available.
d257a1c Fix compilation on FreeBSD and OpenBSD
07b2a75 Restructure repository and move to Automake.