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--- dhcp6c.c.orig 2016-12-19 08:16:42 UTC
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+++ dhcp6c.c
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@@ -82,9 +82,12 @@
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static int debug = 0;
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static int exit_ok = 0;
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+
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static sig_atomic_t sig_flags = 0;
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#define SIGF_TERM 0x1
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#define SIGF_HUP 0x2
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+#define SIGF_QUIT 0x4
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+
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const dhcp6_mode_t dhcp6_mode = DHCP6_MODE_CLIENT;
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@@ -109,6 +112,7 @@ static int ctldigestlen;
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static int infreq_mode = 0;
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int opt_norelease;
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+static char *script_p;
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static inline int get_val32 __P((char **, int *, u_int32_t *));
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static inline int get_ifname __P((char **, int *, char *, int));
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@@ -390,6 +394,11 @@ client6_init()
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strerror(errno));
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exit(1);
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}
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+ if (signal(SIGUSR1, client6_signal) == SIG_ERR) {
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+ d_printf(LOG_WARNING, FNAME, "failed to set signal: %s",
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+ strerror(errno));
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+ exit(1);
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+ }
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}
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int
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@@ -454,6 +463,9 @@ free_resources(freeifp)
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{
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struct dhcp6_if *ifp;
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+
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+ script_p = NULL;
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+
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for (ifp = dhcp6_if; ifp; ifp = ifp->next) {
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struct dhcp6_event *ev, *ev_next;
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@@ -461,6 +473,11 @@ free_resources(freeifp)
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continue;
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/* release all IAs as well as send RELEASE message(s) */
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+ if(script_p == NULL) {
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+ script_p = ifp->scriptpath;
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+
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+ }
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+
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release_all_ia(ifp);
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/*
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@@ -483,20 +500,32 @@ check_exit()
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{
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struct dhcp6_if *ifp;
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+
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+
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if (!exit_ok)
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return;
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- for (ifp = dhcp6_if; ifp; ifp = ifp->next) {
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- /*
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- * Check if we have an outstanding event. If we do, we cannot
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- * exit for now.
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- */
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- if (!TAILQ_EMPTY(&ifp->event_list))
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+ if(exit_ok) {
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+
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+ for (ifp = dhcp6_if; ifp; ifp = ifp->next) {
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+ /*
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+ * Check if we have an outstanding event. If we do, we cannot
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+ * exit for now.
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+ */
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+
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+ if (!TAILQ_EMPTY(&ifp->event_list))
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return;
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+ }
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}
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-
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+
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/* We have no existing event. Do exit. */
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d_printf(LOG_INFO, FNAME, "exiting");
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+
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+ if (strlen(script_p) != 0) {
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+ /* We are going to fire the script with and exit value */
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+ d_printf(LOG_DEBUG, FNAME, "shutdown executes %s", script_p);
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+ client6_script(script_p, DHCP6S_EXIT, NULL);
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+ }
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exit(0);
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}
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@@ -504,6 +533,8 @@ check_exit()
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static void
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process_signals()
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{
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+
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+
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if ((sig_flags & SIGF_TERM)) {
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exit_ok = 1;
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free_resources(NULL);
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@@ -515,6 +546,14 @@ process_signals()
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free_resources(NULL);
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client6_startall(1);
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}
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+ if ((sig_flags & SIGF_QUIT)) {
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+ d_printf(LOG_INFO, FNAME, "Forcing Exit");
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+ exit_ok = 1;
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+ opt_norelease = 1;
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+ free_resources(NULL);
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+ unlink(pid_file);
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+ check_exit();
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+ }
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sig_flags = 0;
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}
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@@ -1161,6 +1200,9 @@ client6_signal(sig)
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case SIGHUP:
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sig_flags |= SIGF_HUP;
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break;
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+ case SIGUSR1:
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+ sig_flags |= SIGF_QUIT;
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+ break;
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}
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}
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@@ -1751,23 +1793,23 @@ client6_recvreply(ifp, dh6, len, optinfo
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switch (state) {
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case DHCP6S_INFOREQ:
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- d_printf(LOG_INFO, FNAME, "dhcp6c Received INFOREQ");
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- break;
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- case DHCP6S_REQUEST:
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- d_printf(LOG_INFO, FNAME, "dhcp6c Received REQUEST");
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- break;
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- case DHCP6S_RENEW:
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- d_printf(LOG_INFO, FNAME, "dhcp6c Received INFO");
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- break;
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- case DHCP6S_REBIND:
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- d_printf(LOG_INFO, FNAME, "dhcp6c Received REBIND");
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- break;
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- case DHCP6S_RELEASE:
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- d_printf(LOG_INFO, FNAME, "dhcp6c Received RELEASE");
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- break;
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- case DHCP6S_SOLICIT:
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- d_printf(LOG_INFO, FNAME, "dhcp6c Received SOLICIT");
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- break;
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+ d_printf(LOG_INFO, FNAME, "Received Info");
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+ break;
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+ case DHCP6S_REQUEST:
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+ d_printf(LOG_INFO, FNAME, "Received Reply");
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+ break;
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+ case DHCP6S_RENEW:
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+ d_printf(LOG_INFO, FNAME, "Received Renew");
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+ break;
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+ case DHCP6S_REBIND:
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+ d_printf(LOG_INFO, FNAME, "Received Rebind");
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+ break;
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+ case DHCP6S_RELEASE:
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+ d_printf(LOG_INFO, FNAME, "Received Release");
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+ break;
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+ case DHCP6S_SOLICIT:
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+ d_printf(LOG_INFO, FNAME, "Received Advert");
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+ break;
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}
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/* A Reply message must contain a Server ID option */
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