X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fstatd%2Fstatd.c;h=8337b64b993918fb8704daeb49cae711447779d3;hp=62009111edd5a0a594c823c3dc62972fa58f2193;hb=dda3455d8b96a7b078bc00c113e1af15ed421d5b;hpb=f113db5225e2954a53fd7eecccfc08326904909f

diff --git a/utils/statd/statd.c b/utils/statd/statd.c
index 6200911..8337b64 100644
--- a/utils/statd/statd.c
+++ b/utils/statd/statd.c
@@ -70,11 +70,13 @@ static struct option longopts[] =
 	{ "state-directory-path", 1, 0, 'P' },
 	{ "notify-mode", 0, 0, 'N' },
 	{ "ha-callout", 1, 0, 'H' },
+	{ "no-notify", 0, 0, 'L' },
 	{ NULL, 0, 0, 0 }
 };
 
 extern void sm_prog_1 (struct svc_req *, register SVCXPRT *);
 extern int statd_get_socket(void);
+static void load_state_number(void);
 
 #ifdef SIMULATIONS
 extern void simulator (int, char **);
@@ -158,6 +160,7 @@ usage()
 	fprintf(stderr,"      -n, --name           Specify a local hostname.\n");
 	fprintf(stderr,"      -P                   State directory path.\n");
 	fprintf(stderr,"      -N                   Run in notify only mode.\n");
+	fprintf(stderr,"      -L, --no-notify      Do not perform any notification.\n");
 	fprintf(stderr,"      -H                   Specify a high-availability callout program.\n");
 }
 
@@ -228,12 +231,10 @@ static void run_sm_notify(int outport)
 		av[ac++] = op;
 	}
 	if (run_mode & STATIC_HOSTNAME) {
-		av[ac++] = "-N";
+		av[ac++] = "-v";
 		av[ac++] = MY_NAME;
 	}
 	av[ac] = NULL;
-	fprintf(stderr, "%s: -N deprecated, consider using /usr/sbin/sm-notify directly\n",
-		name_p);
 	execv(av[0], av);
 	fprintf(stderr, "%s: failed to run %s\n", name_p, av[0]);
 	exit(2);
@@ -274,7 +275,7 @@ int main (int argc, char **argv)
 	MY_NAME = NULL;
 
 	/* Process command line switches */
-	while ((arg = getopt_long(argc, argv, "h?vVFNH:dn:p:o:P:", longopts, NULL)) != EOF) {
+	while ((arg = getopt_long(argc, argv, "h?vVFNH:dn:p:o:P:L", longopts, NULL)) != EOF) {
 		switch (arg) {
 		case 'V':	/* Version */
 		case 'v':
@@ -286,6 +287,9 @@ int main (int argc, char **argv)
 		case 'N':
 			run_mode |= MODE_NOTIFY_ONLY;
 			break;
+		case 'L': /* Listen only */
+			run_mode |= MODE_NO_NOTIFY;
+			break;
 		case 'd':	/* No daemon only - log to stderr */
 			run_mode |= MODE_LOG_STDERR;
 			break;
@@ -363,8 +367,11 @@ int main (int argc, char **argv)
 		exit(-1);
 	}
 
-	if (run_mode & MODE_NOTIFY_ONLY)
+	if (run_mode & MODE_NOTIFY_ONLY) {
+		fprintf(stderr, "%s: -N deprecated, consider using /usr/sbin/sm-notify directly\n",
+			name_p);
 		run_sm_notify(out_port);
+	}
 
 
 	if (!(run_mode & MODE_NODAEMON)) {
@@ -458,32 +465,42 @@ int main (int argc, char **argv)
 	create_pidfile();
 	atexit(truncate_pidfile);
 
-	switch (pid = fork()) {
-	case 0:
-		run_sm_notify(out_port);
-		break;
-	case -1:
-		break;
-	default:
-		waitpid(pid, NULL, 0);
-	}
+	if (! (run_mode & MODE_NO_NOTIFY))
+		switch (pid = fork()) {
+		case 0:
+			run_sm_notify(out_port);
+			break;
+		case -1:
+			break;
+		default:
+			waitpid(pid, NULL, 0);
+		}
 
-	drop_privs();
+	/* Make sure we have a privilege port for calling into the kernel */
+	statd_get_socket();
 
-	for (;;) {
-		pmap_unset (SM_PROG, SM_VERS);
+	/* If sm-notify didn't take all the state files, load
+	 * state information into our notify-list so we can
+	 * pass on any SM_NOTIFY that arrives
+	 */
+	load_state();
+	load_state_number();
+	pmap_unset (SM_PROG, SM_VERS);
 
-		/* If we got this far, we have successfully started, so notify parent */
-		if (pipefds[1] > 0) {
-			status = 0;
-			write(pipefds[1], &status, 1);
-			close(pipefds[1]);
-			pipefds[1] = -1;
-		}
+	/* this registers both UDP and TCP services */
+	rpc_init("statd", SM_PROG, SM_VERS, sm_prog_1, port);
 
-		/* this registers both UDP and TCP services */
-		rpc_init("statd", SM_PROG, SM_VERS, sm_prog_1, port);
+	/* If we got this far, we have successfully started, so notify parent */
+	if (pipefds[1] > 0) {
+		status = 0;
+		write(pipefds[1], &status, 1);
+		close(pipefds[1]);
+		pipefds[1] = -1;
+	}
+
+	drop_privs();
 
+	for (;;) {
 		/*
 		 * Handle incoming requests:  SM_NOTIFY socket requests, as
 		 * well as callbacks from lockd.
@@ -496,15 +513,37 @@ int main (int argc, char **argv)
 		 * responding to SM_SIMU_CRASH is an important use cases to
 		 * get perfect.
 		 */
-		switch (pid = fork()) {
-		case 0:
-			run_sm_notify(out_port);
-			break;
-		case -1:
-			break;
-		default:
-			waitpid(pid, NULL, 0);
-		}
+		if (! (run_mode & MODE_NO_NOTIFY))
+			switch (pid = fork()) {
+			case 0:
+				run_sm_notify(out_port);
+				break;
+			case -1:
+				break;
+			default:
+				waitpid(pid, NULL, 0);
+			}
+
 	}
 	return 0;
 }
+
+static void
+load_state_number(void)
+{
+	int fd;
+
+	if ((fd = open(SM_STAT_PATH, O_RDONLY)) == -1)
+		return;
+
+	read(fd, &MY_STATE, sizeof(MY_STATE));
+	close(fd);
+	fd = open("/proc/sys/fs/nfs/nsm_local_state",O_WRONLY);
+	if (fd >= 0) {
+		char buf[20];
+		snprintf(buf, sizeof(buf), "%d", MY_STATE);
+		write(fd, buf, strlen(buf));
+		close(fd);
+	}
+
+}