Add the blackbox container based test suite.

[meshlink] / test / blackbox / common / tcpdump.c

diff --git a/test/blackbox/common/tcpdump.c b/test/blackbox/common/tcpdump.c
new file mode 100644 (file)
index 0000000..a0933f7
--- /dev/null
+++ b/test/blackbox/common/tcpdump.c
@@ -0,0 +1,60 @@
+/*
+    tcpdump.c -- Implementation of Black Box Test Execution for meshlink
+
+    Copyright (C) 2018  Guus Sliepen <guus@meshlink.io>
+
+    This program 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 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#include <unistd.h>
+#include <sys/prctl.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <signal.h>
+#include <sys/types.h>
+#include "common_handlers.h"
+#include "tcpdump.h"
+
+pid_t tcpdump_start(char *interface) {
+       pid_t tcpdump_pid;
+       char *argv[] = { "tcpdump", "-i", interface, NULL };
+       // child process have a pipe to the parent process when parent process terminates SIGPIPE kills the tcpdump
+       int pipes[2];
+       pipe(pipes);
+       PRINT_TEST_CASE_MSG("\x1b[32mLaunching TCP Dump ..\x1b[0m\n");
+
+       if((tcpdump_pid = fork()) == 0) {
+               prctl(PR_SET_PDEATHSIG, SIGHUP);
+               close(pipes[1]);
+               // Open log file for TCP Dump
+               int fd = open(TCPDUMP_LOG_FILE, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+               assert(fd != -1);
+               close(STDOUT_FILENO);
+               assert(dup2(fd, STDOUT_FILENO) != -1);
+
+               // Launch TCPDump with port numbers of sleepy, gateway & relay
+               int ret = execvp("/usr/sbin/tcpdump", argv);
+               perror("execvp ");
+               assert(ret != -1);
+       } else {
+               close(pipes[0]);
+               return tcpdump_pid;
+       }
+}
+
+void tcpdump_stop(pid_t tcpdump_pid) {
+       PRINT_TEST_CASE_MSG("\n\x1b[32mStopping TCP Dump.\x1b[0m\n");
+       assert(!kill(tcpdump_pid, SIGTERM));
+}