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pptp: kill the call manager process on shutdown

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31606 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2012-05-05 16:56:42 +00:00
parent 66823c0d82
commit a0f95932f7
1 changed files with 74 additions and 0 deletions
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74
package/pptp/patches/100-signal_cleanup.patch Normal file
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@ -0,0 +1,74 @@
--- a/pptp.c
+++ b/pptp.c
@@ -60,6 +60,7 @@
int syncppp = 0;
int log_level = 1;
int disable_buffer = 0;
+pid_t callmgr_pid = 0;
struct in_addr get_ip_address(char *name);
int open_callmgr(struct in_addr inetaddr, char *phonenr, int argc,char **argv,char **envp, int pty_fd, int gre_fd);
@@ -115,6 +116,8 @@ sigjmp_buf env;
/*** signal handler ***********************************************************/
void sighandler(int sig)
{
+ fprintf(stderr, "Got signal, pid=%d\n", callmgr_pid);
+ fflush(stderr);
siglongjmp(env, 1);
}
@@ -330,6 +333,14 @@ int main(int argc, char **argv, char **e
parent_pid = 0; /* don't kill pppd */
}
+ if (sigsetjmp(env, 1)!= 0) goto shutdown;
+
+ signal(SIGINT, sighandler);
+ signal(SIGTERM, sighandler);
+ signal(SIGKILL, sighandler);
+ signal(SIGCHLD, sighandler);
+ signal(SIGUSR1, sigstats);
+
do {
/*
* Open connection to call manager (Launch call manager if necessary.)
@@ -360,13 +371,6 @@ int main(int argc, char **argv, char **e
if (rc != 0) perror("prctl");
#endif
inststr(argc, argv, envp, buf);
- if (sigsetjmp(env, 1)!= 0) goto shutdown;
-
- signal(SIGINT, sighandler);
- signal(SIGTERM, sighandler);
- signal(SIGKILL, sighandler);
- signal(SIGCHLD, sighandler);
- signal(SIGUSR1, sigstats);
/* Do GRE copy until close. */
pptp_gre_copy(call_id, peer_call_id, pty_fd, gre_fd);
@@ -375,6 +379,8 @@ shutdown:
/* on close, kill all. */
if(launchpppd)
kill(parent_pid, SIGTERM);
+ if (callmgr_pid)
+ kill(callmgr_pid, SIGTERM);
close(pty_fd);
close(callmgr_sock);
exit(0);
@@ -407,7 +413,7 @@ int open_callmgr(struct in_addr inetaddr
struct sockaddr_un where;
const int NUM_TRIES = 3;
int i, fd;
- pid_t pid;
+ pid_t pid = 0;
int status;
/* Open socket */
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
@@ -434,6 +440,7 @@ int open_callmgr(struct in_addr inetaddr
launch_callmgr(inetaddr, phonenr, argc, argv, envp);
}
default: /* parent */
+ callmgr_pid = pid;
waitpid(pid, &status, 0);
if (status!= 0)
fatal("Call manager exited with error %d", status);