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authorDaniel Stenberg <daniel@haxx.se>2020-04-19 23:29:21 +0200
committerDaniel Stenberg <daniel@haxx.se>2020-04-20 09:13:20 +0200
commit369ce38ac1dacd16a87f91694a05c5c143e18d80 (patch)
tree508f3f0a946209c8200d3358f7eddb60353ec4fb
parent5811beba391baefad41cd6f8f4fa4e3862098813 (diff)
tests: run the TFTP test server on a dynamic port number
Picking a dynamic unused port is better than a fixed to avoid the collision risk. Closes #5265
-rwxr-xr-xtests/runtests.pl27
-rw-r--r--tests/server/tftpd.c66
-rwxr-xr-xtests/tftpserver.pl15
3 files changed, 85 insertions, 23 deletions
diff --git a/tests/runtests.pl b/tests/runtests.pl
index 5485b1519..9857076fb 100755
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -1940,7 +1940,6 @@ sub runftpsserver {
#
sub runtftpserver {
my ($id, $verbose, $ipv6) = @_;
- my $port = $TFTPPORT;
my $ip = $HOSTIP;
my $proto = 'tftp';
my $ipvnum = 4;
@@ -1954,13 +1953,13 @@ sub runtftpserver {
if($ipv6) {
# if IPv6, use a different setup
$ipvnum = 6;
- $port = $TFTP6PORT;
$ip = $HOST6IP;
}
$server = servername_id($proto, $ipvnum, $idnum);
$pidfile = $serverpidfile{$server};
+ my $portfile = $serverportfile{$server};
# don't retry if the server doesn't work
if ($doesntrun{$pidfile}) {
@@ -1978,9 +1977,11 @@ sub runtftpserver {
$logfile = server_logfilename($LOGDIR, $proto, $ipvnum, $idnum);
$flags .= "--verbose " if($debugprotocol);
- $flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+ $flags .= "--pidfile \"$pidfile\" ".
+ "--portfile \"$portfile\" ".
+ "--logfile \"$logfile\" ";
$flags .= "--id $idnum " if($idnum > 1);
- $flags .= "--ipv$ipvnum --port $port --srcdir \"$srcdir\"";
+ $flags .= "--ipv$ipvnum --port 0 --srcdir \"$srcdir\"";
my $cmd = "$perl $srcdir/tftpserver.pl $flags";
my ($tftppid, $pid2) = startnew($cmd, $pidfile, 15, 0);
@@ -1994,6 +1995,8 @@ sub runtftpserver {
return (0,0);
}
+ my $port = pidfromfile($portfile);
+
# Server is up. Verify that we can speak to it.
my $pid3 = verifyserver($proto, $ipvnum, $idnum, $ip, $port);
if(!$pid3) {
@@ -2007,12 +2010,12 @@ sub runtftpserver {
$pid2 = $pid3;
if($verbose) {
- logmsg "RUN: $srvrname server is now running PID $tftppid\n";
+ logmsg "RUN: $srvrname server on PID $tftppid port $port\n";
}
sleep(1);
- return ($pid2, $tftppid);
+ return ($pid2, $tftppid, $port);
}
@@ -3152,13 +3155,9 @@ sub checksystem {
logmsg sprintf("FTPS/%d ", $FTPSPORT);
logmsg sprintf("HTTPS/%d ", $HTTPSPORT);
}
- logmsg sprintf("TFTP/%d ", $TFTPPORT);
if($http_ipv6) {
logmsg sprintf("RTSP-IPv6/%d ", $RTSP6PORT);
}
- if($tftp_ipv6) {
- logmsg sprintf("TFTP-IPv6/%d ", $TFTP6PORT);
- }
logmsg sprintf("\n* SSH/%d ", $SSHPORT);
logmsg sprintf("SOCKS/%d ", $SOCKSPORT);
if($httptlssrv) {
@@ -4848,7 +4847,8 @@ sub startservers {
stopserver('tftp');
}
if(!$run{'tftp'}) {
- ($pid, $pid2) = runtftpserver("", $verbose);
+ ($pid, $pid2, $TFTPPORT) =
+ runtftpserver("", $verbose);
if($pid <= 0) {
return "failed starting TFTP server";
}
@@ -4862,7 +4862,8 @@ sub startservers {
stopserver('tftp-ipv6');
}
if(!$run{'tftp-ipv6'}) {
- ($pid, $pid2) = runtftpserver("", $verbose, "ipv6");
+ ($pid, $pid2, $TFTP6PORT) =
+ runtftpserver("", $verbose, "ipv6");
if($pid <= 0) {
return "failed starting TFTP-IPv6 server";
}
@@ -5440,8 +5441,6 @@ if ($gdbthis) {
$minport = $base; # original base port number
$HTTPSPORT = $base++; # HTTPS (stunnel) server port
$FTPSPORT = $base++; # FTPS (stunnel) server port
-$TFTPPORT = $base++; # TFTP (UDP) port
-$TFTP6PORT = $base++; # TFTP IPv6 (UDP) port
$SSHPORT = $base++; # SSH (SCP/SFTP) port
$SOCKSPORT = $base++; # SOCKS port
$RTSPPORT = $base++; # RTSP server port
diff --git a/tests/server/tftpd.c b/tests/server/tftpd.c
index 9972ab0e4..46b09b562 100644
--- a/tests/server/tftpd.c
+++ b/tests/server/tftpd.c
@@ -210,6 +210,7 @@ static const char *ipv_inuse = "IPv4";
const char *serverlogfile = DEFAULT_LOGFILE;
static const char *pidname = ".tftpd.pid";
+static const char *portfile = NULL;
static int serverlogslocked = 0;
static int wrotepidfile = 0;
@@ -574,6 +575,11 @@ int main(int argc, char **argv)
if(argc>arg)
pidname = argv[arg++];
}
+ else if(!strcmp("--portfile", argv[arg])) {
+ arg++;
+ if(argc>arg)
+ portfile = argv[arg++];
+ }
else if(!strcmp("--logfile", argv[arg])) {
arg++;
if(argc>arg)
@@ -598,12 +604,6 @@ int main(int argc, char **argv)
if(argc>arg) {
char *endptr;
unsigned long ulnum = strtoul(argv[arg], &endptr, 10);
- if((endptr != argv[arg] + strlen(argv[arg])) ||
- (ulnum < 1025UL) || (ulnum > 65535UL)) {
- fprintf(stderr, "tftpd: invalid --port argument (%s)\n",
- argv[arg]);
- return 0;
- }
port = curlx_ultous(ulnum);
arg++;
}
@@ -690,12 +690,64 @@ int main(int argc, char **argv)
goto tftpd_cleanup;
}
+ if(!port) {
+ /* The system was supposed to choose a port number, figure out which
+ port we actually got and update the listener port value with it. */
+ curl_socklen_t la_size;
+ srvr_sockaddr_union_t localaddr;
+#ifdef ENABLE_IPV6
+ if(!use_ipv6)
+#endif
+ la_size = sizeof(localaddr.sa4);
+#ifdef ENABLE_IPV6
+ else
+ la_size = sizeof(localaddr.sa6);
+#endif
+ memset(&localaddr.sa, 0, (size_t)la_size);
+ if(getsockname(sock, &localaddr.sa, &la_size) < 0) {
+ error = SOCKERRNO;
+ logmsg("getsockname() failed with error: (%d) %s",
+ error, strerror(error));
+ sclose(sock);
+ return CURL_SOCKET_BAD;
+ }
+ switch(localaddr.sa.sa_family) {
+ case AF_INET:
+ port = ntohs(localaddr.sa4.sin_port);
+ break;
+#ifdef ENABLE_IPV6
+ case AF_INET6:
+ port = ntohs(localaddr.sa6.sin6_port);
+ break;
+#endif
+ default:
+ break;
+ }
+ if(!port) {
+ /* Real failure, listener port shall not be zero beyond this point. */
+ logmsg("Apparently getsockname() succeeded, with listener port zero.");
+ logmsg("A valid reason for this failure is a binary built without");
+ logmsg("proper network library linkage. This might not be the only");
+ logmsg("reason, but double check it before anything else.");
+ result = 2;
+ goto tftpd_cleanup;
+ }
+ }
+
wrotepidfile = write_pidfile(pidname);
if(!wrotepidfile) {
result = 1;
goto tftpd_cleanup;
}
+ if(portfile) {
+ wrotepidfile = write_portfile(portfile, port);
+ if(!wrotepidfile) {
+ result = 1;
+ goto tftpd_cleanup;
+ }
+ }
+
logmsg("Running %s version on port UDP/%d", ipv_inuse, (int)port);
for(;;) {
@@ -800,6 +852,8 @@ tftpd_cleanup:
if(wrotepidfile)
unlink(pidname);
+ if(portfile)
+ unlink(portfile);
if(serverlogslocked) {
serverlogslocked = 0;
diff --git a/tests/tftpserver.pl b/tests/tftpserver.pl
index 523498634..a7b9b39df 100755
--- a/tests/tftpserver.pl
+++ b/tests/tftpserver.pl
@@ -43,8 +43,9 @@ my $port = 8997; # just a default
my $ipvnum = 4; # default IP version of tftp server
my $idnum = 1; # default tftp server instance number
my $proto = 'tftp'; # protocol the tftp server speaks
-my $pidfile; # tftp server pid file
-my $logfile; # tftp server log file
+my $pidfile;
+my $portfile;
+my $logfile;
my $srcdir;
my $fork;
@@ -59,6 +60,12 @@ while(@ARGV) {
shift @ARGV;
}
}
+ elsif($ARGV[0] eq '--portfile') {
+ if($ARGV[1]) {
+ $portfile = $ARGV[1];
+ shift @ARGV;
+ }
+ }
elsif($ARGV[0] eq '--logfile') {
if($ARGV[1]) {
$logfile = $ARGV[1];
@@ -108,7 +115,9 @@ if(!$logfile) {
$logfile = server_logfilename($logdir, $proto, $ipvnum, $idnum);
}
-$flags .= "--pidfile \"$pidfile\" --logfile \"$logfile\" ";
+$flags .= "--pidfile \"$pidfile\" ".
+ "--portfile \"$portfile\" ".
+ "--logfile \"$logfile\" ";
$flags .= "--ipv$ipvnum --port $port --srcdir \"$srcdir\"";
exec("server/tftpd".exe_ext('SRV')." $flags");