Initial commit
Change-Id: I6a4444e3c193dae437cd7929f4c39aba7b749efa
diff --git a/extensions/dbg_interactive/dbg_interactive.c b/extensions/dbg_interactive/dbg_interactive.c
new file mode 100644
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--- /dev/null
+++ b/extensions/dbg_interactive/dbg_interactive.c
@@ -0,0 +1,140 @@
+/*********************************************************************************************************
+* Software License Agreement (BSD License) *
+* Author: Sebastien Decugis <sdecugis@freediameter.net> *
+* *
+* Copyright (c) 2013, WIDE Project and NICT *
+* All rights reserved. *
+* *
+* Redistribution and use of this software in source and binary forms, with or without modification, are *
+* permitted provided that the following conditions are met: *
+* *
+* * Redistributions of source code must retain the above *
+* copyright notice, this list of conditions and the *
+* following disclaimer. *
+* *
+* * Redistributions in binary form must reproduce the above *
+* copyright notice, this list of conditions and the *
+* following disclaimer in the documentation and/or other *
+* materials provided with the distribution. *
+* *
+* * Neither the name of the WIDE Project or NICT nor the *
+* names of its contributors may be used to endorse or *
+* promote products derived from this software without *
+* specific prior written permission of WIDE Project and *
+* NICT. *
+* *
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
+* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
+* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
+* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
+* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
+*********************************************************************************************************/
+
+#include <Python.h>
+#include <freeDiameter/extension.h>
+#include <unistd.h>
+
+/* wrapper generated by SWIG */
+#if PY_VERSION_HEX >= 0x03000000
+ extern void PyInit__fDpy(void);
+ #define WRAPPER_INIT PyInit__fDpy()
+#else /* PY_VERSION_HEX */
+ extern void init_fDpy(void);
+ #define WRAPPER_INIT init_fDpy()
+#endif /* PY_VERSION_HEX */
+
+/* The string created in the shadow proxy C string file */
+extern unsigned char fDpy_py[];
+extern unsigned int fDpy_py_len;
+
+/* Run an interactive interpreter in a separate thread */
+static pthread_t pyinterp = (pthread_t)NULL;
+static void * myinterp (void * arg)
+{
+ char * dum[3] = { "<dbg_interactive>", arg, NULL };
+
+ TRACE_ENTRY("%p", arg);
+
+ fd_log_threadname ( "fDpy" );
+
+ CHECK_FCT_DO(fd_core_waitstartcomplete(), goto end);
+
+ if (arg) {
+ fd_log_debug("Starting python interpreter with a script file [experimental].");
+ Py_Main(2, dum);
+ } else {
+ if (!isatty(fileno(stdin)) || !isatty(fileno(stdout))) {
+ TRACE_ERROR("[dbg_interactive]: this extension requires freeDiameter to be run from a console terminal!");
+ goto end;
+ }
+ printf("Starting interactive python interpreter [experimental].\n");
+ printf("Please use Ctrl-D to exit.\n");
+ printf("Example syntax:\n");
+ printf(" >>> print cvar.fd_g_config.cnf_diamid\n");
+ printf(" '%s'\n", fd_g_config->cnf_diamid);
+ Py_Main(1, dum);
+ printf("Python interpreter has exited...\n");
+ }
+
+end:
+ /* Upon exit, issue the order of terminating to fD, if the interpreter was started without a file */
+ if (!arg) {
+ (void)fd_core_shutdown();
+ }
+
+ return NULL;
+}
+
+/* Register the callbacks to the daemon */
+static int di_main(char * conffile)
+{
+ char * shadow_hlp = NULL;
+ int mustfree = 0;
+ TRACE_ENTRY("%p", conffile);
+
+ Py_InitializeEx(0);
+
+ WRAPPER_INIT;
+
+ /* Small hack to avoid duplicating the string, we replace the last char by a \0.
+ It works if the python file is terminated with several \n */
+ if ( (fDpy_py[fDpy_py_len - 2] == '\n')
+ && (fDpy_py[fDpy_py_len - 1] == '\n')) {
+ fDpy_py[fDpy_py_len - 1] = '\0';
+ shadow_hlp = (char *)&fDpy_py[0];
+ } else {
+ CHECK_MALLOC(shadow_hlp = malloc(fDpy_py_len + 1));
+ memcpy(shadow_hlp, fDpy_py, fDpy_py_len);
+ shadow_hlp[fDpy_py_len] = '\0';
+ mustfree=1;
+ }
+
+ PyRun_SimpleString("__file__ = \"\"\n");
+ PyRun_SimpleString(shadow_hlp);
+
+ if (mustfree)
+ free(shadow_hlp);
+
+ CHECK_POSIX( pthread_create(&pyinterp, NULL, myinterp, conffile) );
+
+ return 0;
+}
+
+/* Terminate the extension */
+void fd_ext_fini(void)
+{
+ TRACE_ENTRY();
+ void * ret;
+
+ /* Cleanup the python interpreter */
+ Py_Finalize();
+ pthread_join(pyinterp, &ret);
+
+ return ;
+}
+
+/* Define the entry point function */
+EXTENSION_ENTRY("dbg_interactive", di_main);