Adding upstream version 2.8.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

CHANGES

@@ -1,3 +1,27 @@
+2021-11-02 Jerry Lundström
+
+    Release 2.8.0
+
+    This release fixes response handling for DNS-over-HTTPS when multiple
+    responses are received within the same receive cycle, and adds a new
+    option to suppress some of the normal and verbose output.
+
+    The network model within dnsperf and resperf can not process more then
+    one response at a time from a protocol module, so a buffer has been added
+    to the DNS-over-HTTPS module to handle this situation (this already exists
+    in all other modules).
+
+    The new option `-O suppress=<message,...>` can selectively suppress parts
+    of the normal and verbose output. Some of these messages might be
+    excessively displayed due to the network model and depending on what
+    protocol you use which makes usage harder then necessary. For example
+    during TCP connection stage, if you end-point is slow to establish
+    connection you will get a lot of output saying that the socket isn't ready
+    yet.
+
+    6a452b0 DoH response handling
+    e2828e7 Suppress
+
 2021-09-17 Jerry Lundström
 
     Release 2.7.1

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for dnsperf 2.7.1.
+# Generated by GNU Autoconf 2.69 for dnsperf 2.8.0.
 #
 # Report bugs to <admin@dns-oarc.net>.
 #
@@ -590,8 +590,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='dnsperf'
 PACKAGE_TARNAME='dnsperf'
-PACKAGE_VERSION='2.7.1'
+PACKAGE_VERSION='2.8.0'
-PACKAGE_STRING='dnsperf 2.7.1'
+PACKAGE_STRING='dnsperf 2.8.0'
 PACKAGE_BUGREPORT='admin@dns-oarc.net'
 PACKAGE_URL='https://github.com/DNS-OARC/dnsperf/issues'
 
@@ -1360,7 +1360,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures dnsperf 2.7.1 to adapt to many kinds of systems.
+\`configure' configures dnsperf 2.8.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1431,7 +1431,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of dnsperf 2.7.1:";;
+     short | recursive ) echo "Configuration of dnsperf 2.8.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1570,7 +1570,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-dnsperf configure 2.7.1
+dnsperf configure 2.8.0
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1939,7 +1939,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by dnsperf $as_me 2.7.1, which was
+It was created by dnsperf $as_me 2.8.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2802,7 +2802,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='dnsperf'
- VERSION='2.7.1'
+ VERSION='2.8.0'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -14410,7 +14410,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by dnsperf $as_me 2.7.1, which was
+This file was extended by dnsperf $as_me 2.8.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -14477,7 +14477,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-dnsperf config.status 2.7.1
+dnsperf config.status 2.8.0
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 

configure.ac

@@ -16,7 +16,7 @@
 # limitations under the License.
 
 AC_PREREQ(2.64)
-AC_INIT([dnsperf], [2.7.1], [admin@dns-oarc.net], [dnsperf], [https://github.com/DNS-OARC/dnsperf/issues])
+AC_INIT([dnsperf], [2.8.0], [admin@dns-oarc.net], [dnsperf], [https://github.com/DNS-OARC/dnsperf/issues])
 AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects])
 AC_CONFIG_SRCDIR([src/dnsperf.c])
 AC_CONFIG_HEADER([src/config.h])

src/dnsperf.1.in

@@ -397,6 +397,23 @@ The URI to use for DNS-over-HTTPS, default value is
 The HTTP method to use when querying with DNS-over-HTTPS, default is GET.
 Available methods are: GET, POST.
 .RE
+
+\fBsuppress=\fIMESSAGE[,MESSAGE,...]\fR
+.br
+.RS
+Suppress various messages and warnings that may be shown excessively in some
+situations, such as socket readiness when connecting to a slow service.
+Can suppress multiple types by listing them as a comma separated list.
+Following type are available.
+
+\fBtimeouts\fR: Suppress messages about queries being timed out
+.br
+\fBcongestion\fR: Suppress messages about network congestion
+.br
+\fBsendfailed\fR: Suppress messages about failure to send packets or if only parts of the packet were sent
+.br
+\fBsockready\fR: Suppress messages about socket readiness
+.RE
 .SH "SEE ALSO"
 \fBresperf\fR(1)
 .SH AUTHOR

src/dnsperf.c

@@ -88,6 +88,7 @@ typedef struct {
     bool               updates;
     bool               verbose;
     enum perf_net_mode mode;
+    perf_suppress_t    suppress;
 } config_t;
 
 typedef struct {
@@ -410,6 +411,7 @@ setup(int argc, char** argv, config_t* config)
     const char* mode           = 0;
     const char* doh_uri        = DEFAULT_DOH_URI;
     const char* doh_method     = DEFAULT_DOH_METHOD;
+    const char* local_suppress = 0;
 
     memset(config, 0, sizeof(*config));
     config->argc = argc;
@@ -487,6 +489,8 @@ setup(int argc, char** argv, config_t* config)
         "the URI to use for DNS-over-HTTPS", DEFAULT_DOH_URI, &doh_uri);
     perf_long_opt_add("doh-method", perf_opt_string, "doh_method",
         "the HTTP method to use for DNS-over-HTTPS: GET or POST", DEFAULT_DOH_METHOD, &doh_method);
+    perf_long_opt_add("suppress", perf_opt_string, "message[,message,...]",
+        "suppress messages/warnings, see man-page for list of message types", NULL, &local_suppress);
 
     bool log_stdout = false;
     perf_opt_add('W', perf_opt_boolean, NULL, "log warnings and errors to stdout instead of stderr", NULL, &log_stdout);
@@ -497,6 +501,8 @@ setup(int argc, char** argv, config_t* config)
         perf_log_tostdout();
     }
 
+    config->suppress = perf_opt_parse_suppress(local_suppress);
+
     if (mode != 0)
         config->mode = perf_net_parsemode(mode);
 
@@ -695,14 +701,14 @@ do_send(void* arg)
             q->sock = tinfo->socks[tinfo->current_sock++ % tinfo->nsocks];
             switch (perf_net_sockready(q->sock, threadpipe[0], TIMEOUT_CHECK_TIME)) {
             case 0:
-                if (config->verbose) {
+                if (config->verbose && !config->suppress.sockready) {
                     perf_log_warning("socket %p not ready", q->sock);
                 }
                 q->sock  = 0;
                 all_fail = false;
                 continue;
             case -1:
-                if (config->verbose) {
+                if (config->verbose && !config->suppress.sockready) {
                     perf_log_warning("socket %p readiness check timed out", q->sock);
                 }
                 q->sock = 0;
@@ -765,12 +771,12 @@ do_send(void* arg)
             config->server_addr.length);
         if (n < 0) {
             if (errno == EINPROGRESS) {
-                if (config->verbose) {
+                if (config->verbose && !config->suppress.congestion) {
                     perf_log_warning("network congested, packet sending in progress");
                 }
                 any_inprogress = 1;
             } else {
-                if (config->verbose) {
+                if (config->verbose && !config->suppress.sendfailed) {
                     char __s[256];
                     perf_log_warning("failed to send packet: %s", perf_strerror_r(errno, __s, sizeof(__s)));
                 }
@@ -780,7 +786,9 @@ do_send(void* arg)
                 continue;
             }
         } else if ((unsigned int)n != length) {
+            if (!config->suppress.sendfailed) {
                 perf_log_warning("failed to send full packet: only sent %d of %u", n, length);
+            }
             PERF_LOCK(&tinfo->lock);
             query_move(tinfo, q, prepend_unused);
             PERF_UNLOCK(&tinfo->lock);
@@ -827,6 +835,7 @@ process_timeouts(threadinfo_t* tinfo, uint64_t now)
 
         tinfo->stats.num_timedout++;
 
+        if (!config->suppress.timeouts) {
             if (q->desc != NULL) {
                 perf_log_printf("> T %s", q->desc);
             } else {
@@ -834,6 +843,7 @@ process_timeouts(threadinfo_t* tinfo, uint64_t now)
                     config->updates ? "Update" : "Query",
                     (unsigned int)(q - tinfo->queries));
             }
+        }
         q = perf_list_tail(tinfo->outstanding_queries);
     } while (q != NULL && q->timestamp < now && now - q->timestamp >= config->timeout);
 

src/net_doh.c

@@ -115,6 +115,9 @@ struct perf__doh_socket {
     bool            http2_is_dns;
 
     struct _doh_stats stats;
+
+    char   recvbuf[TCP_RECV_BUF_SIZE];
+    size_t recv_at;
 };
 
 static pthread_mutex_t            _nghttp2_lock      = PTHREAD_MUTEX_INITIALIZER;
@@ -291,8 +294,9 @@ static ssize_t perf__doh_recv(struct perf_net_socket* sock, void* buf, size_t le
         return -1;
     }
 
-    uint8_t recvbuf[TCP_RECV_BUF_SIZE];
+    if (self->recv_at < sizeof(self->recvbuf)) {
-    ssize_t n = SSL_read(self->ssl, recvbuf, TCP_RECV_BUF_SIZE);
+        // try to recv more if we can
+        ssize_t n = SSL_read(self->ssl, self->recvbuf + self->recv_at, sizeof(self->recvbuf) - self->recv_at);
         if (!n) {
             perf__doh_reconnect(sock);
             PERF_UNLOCK(&self->lock);
@@ -303,8 +307,13 @@ static ssize_t perf__doh_recv(struct perf_net_socket* sock, void* buf, size_t le
             int err = SSL_get_error(self->ssl, n);
             switch (err) {
             case SSL_ERROR_WANT_READ:
-            errno = EAGAIN;
+                if (self->recv_at) {
+                    // did not recv but we got something in buffer
                     break;
+                }
+                errno = EAGAIN;
+                PERF_UNLOCK(&self->lock);
+                return -1;
             case SSL_ERROR_SYSCALL:
                 switch (errno) {
                 case ECONNREFUSED:
@@ -316,25 +325,31 @@ static ssize_t perf__doh_recv(struct perf_net_socket* sock, void* buf, size_t le
                 default:
                     break;
                 }
-            break;
+                PERF_UNLOCK(&self->lock);
+                return -1;
             default:
                 errno = EBADF;
-            break;
-        }
                 PERF_UNLOCK(&self->lock);
                 return -1;
             }
+        } else {
+            self->recv_at += n;
+        }
+    }
 
     // this will be processed by nghttp2 callbacks
-    int ret = nghttp2_session_mem_recv(self->http2.session, recvbuf, n);
+    ssize_t ret = nghttp2_session_mem_recv(self->http2.session, (uint8_t*)self->recvbuf, self->recv_at);
     if (ret < 0) {
         perf_log_warning("nghttp2_session_mem_recv failed: %s", nghttp2_strerror(ret));
         PERF_UNLOCK(&self->lock);
         return -1;
     }
-    // TODO: handle partial mem_recv
+    if (ret != self->recv_at) {
-    if (ret != n) {
+        // only process one response per call
-        perf_log_fatal("perf__doh_recv() mem_recv did not take all");
+        memmove(self->recvbuf, self->recvbuf + ret, self->recv_at - ret);
+        self->recv_at -= ret;
+    } else {
+        self->recv_at = 0;
     }
 
     // TODO: is this faster then mem_recv?
@@ -850,7 +865,9 @@ static int _http2_data_chunk_recv_cb(nghttp2_session* session,
     }
 
     if (self->http2.dnsmsg_completed) {
-        perf_log_fatal("_http2_data_chunk_recv_cb: chunk received when already having a dns msg");
+        // pause for now and don't process this chunk
+        // can only do one response at a time in perf__doh_recv()
+        return NGHTTP2_ERR_PAUSE;
     }
 
     // TODO: point of nghttp2_session_get_stream_user_data() code?

src/opt.c

@@ -366,3 +366,38 @@ void perf_opt_parse(int argc, char** argv)
         exit(1);
     }
 }
+
+perf_suppress_t perf_opt_parse_suppress(const char* val)
+{
+    perf_suppress_t s = { false, false, false };
+
+    while (val && *val) {
+        const char* next = strchr(val, ',');
+        int         len;
+        if (next) {
+            len = next - val;
+            next += 1;
+        } else {
+            len  = strlen(val);
+            next = 0;
+        }
+
+        if (!strncmp(val, "timeouts", len)) {
+            s.timeouts = true;
+        } else if (!strncmp(val, "congestion", len)) {
+            s.congestion = true;
+        } else if (!strncmp(val, "sendfailed", len)) {
+            s.sendfailed = true;
+        } else if (!strncmp(val, "sockready", len)) {
+            s.sockready = true;
+        } else {
+            fprintf(stderr, "unknown message type to suppress: %.*s\n", len, val);
+            perf_opt_usage();
+            exit(1);
+        }
+
+        val = next;
+    }
+
+    return s;
+}

src/opt.h

@@ -20,6 +20,8 @@
 #ifndef PERF_OPT_H
 #define PERF_OPT_H 1
 
+#include <stdbool.h>
+
 typedef enum {
     perf_opt_string,
     perf_opt_boolean,
@@ -30,6 +32,13 @@ typedef enum {
     perf_opt_port,
 } perf_opttype_t;
 
+typedef struct {
+    bool timeouts;
+    bool congestion;
+    bool sendfailed;
+    bool sockready;
+} perf_suppress_t;
+
 void perf_opt_add(char c, perf_opttype_t type, const char* desc, const char* help, const char* defval, void* valp);
 void perf_long_opt_add(const char* name, perf_opttype_t type, const char* desc, const char* help, const char* defval, void* valp);
 
@@ -38,4 +47,6 @@ void perf_long_opt_usage(void);
 
 void perf_opt_parse(int argc, char** argv);
 
+perf_suppress_t perf_opt_parse_suppress(const char* val);
+
 #endif

src/resperf.c

@@ -205,6 +205,8 @@ static perf_tsigkey_t* tsigkey;
 static bool         verbose;
 static unsigned int max_fall_behind;
 
+static perf_suppress_t suppress;
+
 const char* progname = "resperf";
 
 static char*
@@ -251,6 +253,7 @@ static void setup(int argc, char** argv)
     const char*  edns_option_str = NULL;
     const char*  doh_uri         = DEFAULT_DOH_URI;
     const char*  doh_method      = DEFAULT_DOH_METHOD;
+    const char*  local_suppress  = 0;
 
     sock_family     = AF_UNSPEC;
     server_port     = 0;
@@ -332,6 +335,8 @@ static void setup(int argc, char** argv)
         "the URI to use for DNS-over-HTTPS", DEFAULT_DOH_URI, &doh_uri);
     perf_long_opt_add("doh-method", perf_opt_string, "doh_method",
         "the HTTP method to use for DNS-over-HTTPS: GET or POST", DEFAULT_DOH_METHOD, &doh_method);
+    perf_long_opt_add("suppress", perf_opt_string, "message[,message,...]",
+        "suppress messages/warnings, see dnsperf(1) man-page for list of message types", NULL, &local_suppress);
 
     perf_opt_parse(argc, argv);
 
@@ -339,6 +344,8 @@ static void setup(int argc, char** argv)
         perf_log_tostdout();
     }
 
+    suppress = perf_opt_parse_suppress(local_suppress);
+
     if (_mode != 0)
         mode = perf_net_parsemode(_mode);
 
@@ -574,11 +581,11 @@ do_one_line(perf_buffer_t* lines, perf_buffer_t* msg)
     while (q->is_inprogress) {
         if (perf_net_sockready(socks[sock], dummypipe[0], TIMEOUT_CHECK_TIME) == -1) {
             if (errno == EINPROGRESS) {
-                if (verbose) {
+                if (verbose && !suppress.congestion) {
                     perf_log_warning("network congested, packet sending in progress");
                 }
             } else {
-                if (verbose) {
+                if (verbose && !suppress.sockready) {
                     char __s[256];
                     perf_log_warning("failed to check socket readiness: %s", perf_strerror_r(errno, __s, sizeof(__s)));
                 }
@@ -603,16 +610,16 @@ do_one_line(perf_buffer_t* lines, perf_buffer_t* msg)
 
     switch (perf_net_sockready(socks[sock], dummypipe[0], TIMEOUT_CHECK_TIME)) {
     case 0:
-        if (verbose) {
+        if (verbose && !suppress.sockready) {
             perf_log_warning("failed to send packet: socket %d not ready", sock);
         }
         return (PERF_R_FAILURE);
     case -1:
         if (errno == EINPROGRESS) {
-            if (verbose) {
+            if (verbose && !suppress.congestion) {
                 perf_log_warning("network congested, packet sending in progress");
             }
-        } else {
+        } else if (!suppress.sockready) {
             perf_log_warning("failed to send packet: socket %d not ready", sock);
         }
         return (PERF_R_FAILURE);
@@ -642,12 +649,12 @@ do_one_line(perf_buffer_t* lines, perf_buffer_t* msg)
             &server_addr.sa.sa, server_addr.length)
         < 1) {
         if (errno == EINPROGRESS) {
-            if (verbose) {
+            if (verbose && !suppress.congestion) {
                 perf_log_warning("network congested, packet sending in progress");
             }
             q->is_inprogress = true;
         } else {
-            if (verbose) {
+            if (verbose && !suppress.sendfailed) {
                 char __s[256];
                 perf_log_warning("failed to send packet: %s", perf_strerror_r(errno, __s, sizeof(__s)));
             }
@@ -702,7 +709,7 @@ try_process_response(unsigned int sockindex)
 
     if (perf_net_sockready(socks[sockindex], dummypipe[0], TIMEOUT_CHECK_TIME) == -1) {
         if (errno != EINPROGRESS) {
-            if (verbose) {
+            if (verbose && !suppress.sockready) {
                 char __s[256];
                 perf_log_warning("failed to check socket readiness: %s", perf_strerror_r(errno, __s, sizeof(__s)));
             }