netmount, localmount, halt.sh and net scripts now check OS specific flags to see if a mount is network mounted (linux = fstab, *bsd = "local" in mount options) or not, #192772.

2007-10-09 15:33:05 +00:00
parent e89805e0c0
commit dc0ba7ebf3
7 changed files with 111 additions and 46 deletions
--- a/3
+++ b/3
@@ -3,6 +3,9 @@

  09 Oct 2007; Roy Marples <uberlord@gentoo.org>:

+    netmount, localmount, halt.sh and net scripts now check OS specific flags
+    to see if a mount is network mounted (linux = fstab, *bsd = "local" in
+    mount options) or not, #192772.
    txqueuelen_eth0= now works, #190538.

  03 Oct 2007; Roy Marples <uberlord@gentoo.org>:
--- a/init.d/halt.sh
+++ b/init.d/halt.sh
@@ -72,7 +72,9 @@ if [ "${RC_UNAME}" = "Linux" ] ; then
 		fs="${fs}${fs:+|}${x}"
 	done
 	[ -n "${fs}" ] && fs="^(${fs})$"
-	do_unmount "mount -n -o remount,ro" "^(/dev|/dev/.*|/proc|/proc/.*|/sys|/sys/.*)$" "" "" "${fs}"
+	do_unmount "mount -n -o remount,ro" \
+		--skip-point-regex "^(/dev|/dev/.*|/proc|/proc/.*|/sys|/sys/.*)$" \
+		${fs:+--skip-fstype-regex} ${fs} --nonetdev
 	eoutdent
 	eend $?
 	unmounted=$?
--- a/init.d/localmount
+++ b/init.d/localmount
@@ -203,7 +203,8 @@ stop() {
 	# Umount loopback devices
 	einfo "Unmounting loopback devices"
 	eindent
-	do_unmount "umount -d" "${no_umounts}" "^/dev/loop"
+	do_unmount "umount -d" --skip-point-regex "${no_umounts}" \
+		--node-regex "^/dev/loop"
 	eoutdent

 	# Now everything else, except network filesystems as the
@@ -215,7 +216,8 @@ stop() {
 		fs="${fs}${fs:+|}${x}"
 	done
 	[ -n "${fs}" ] && fs="^(${fs})$"
-	do_unmount "umount" "${no_umounts}" "" "" "${fs}"
+	do_unmount "umount" --skip-point-regex "${no_umounts}" \
+		${fs:+--skip-fstype-regex} ${fs} --nonetdev
 	eoutdent

 	return 0
--- a/init.d/netmount
+++ b/init.d/netmount
@@ -21,7 +21,7 @@ depend() {
 	# Only have portmap as a dependency if there is a nfs mount in fstab that
 	# is set to mount at boot
 	local pmap=""
-	if need_portmap ; then
+	if need_portmap; then
 		[ -x /etc/init.d/rpcbind ] \
 			&& pmap="rpcbind" \
 			|| pmap="portmap"
@@ -37,7 +37,7 @@ start() {
 	[ -x /etc/init.d/rpcbind ] && pmap="rpcbind"

 	local x= fs=
-	for x in ${RC_NET_FS_LIST} ; do
+	for x in ${RC_NET_FS_LIST}; do
 		case "${x}" in
 			nfs|nfs4)
    			# If the nfsmount script took care of the nfs filesystems,
@@ -47,7 +47,7 @@ start() {
        		# Only try to mount NFS filesystems if portmap was started.
 		        # This is to fix "hang" problems for new users who do not
 				# add portmap to the default runlevel.
-				if need_portmap && ! service_started "${pmap}" ; then
+				if need_portmap && ! service_started "${pmap}"; then
 					continue
 				fi
 				;;
@@ -63,28 +63,28 @@ start() {

 stop() {
 	local x= fs=
+
+	ebegin "Unmounting network filesystems"
+	. "${RC_LIBDIR}/sh/rc-mount.sh"
+
 	for x in ${RC_NET_FS_LIST} ; do
 		fs="${fs}${fs:+,}${x}"
 	done
-
-	ebegin "Unmounting network filesystems"
-	umount -at ${fs}
-	local retval=$?
-	eend ${retval} "Failed to simply unmount filesystems"
-
-	if [ ${retval} -ne 0 ] ; then
-		. "${RC_LIBDIR}/sh/rc-mount.sh"
-		eindent
-		fs=
-		for x in ${RC_NET_FS_LIST} ; do
-			fs="${fs:+|}${x}"
-		done
-		do_unmount "umount" "" "" "^(${fs})$"
-		retval=$?
-		eoutdent
+	if [ -n "${fs}" ]; then
+		umount -at ${fs} ||	eerror "Failed to simply unmount filesystems"
 	fi

-	return ${retval}
+	eindent
+	fs=
+	for x in ${RC_NET_FS_LIST}; do
+		fs="${fs}${fs:+|}${x}"
+	done
+	[ -n "${fs}" ] && fs="^(${fs})$"
+	do_unmount "umount" ${fs:+--fstype-regex} ${fs} --netdev
+	retval=$?
+
+	eoutdent
+	eend ${retval} "Failed to unmount network filesystems"
 }

 # vim: set ts=4 :
--- a/sh/rc-functions.sh
+++ b/sh/rc-functions.sh
@@ -26,6 +26,11 @@ stop_addon() {
 is_net_fs() {
 	[ -z "$1" ] && return 1

+	# Check OS specific flags to see if we're local or net mounted
+	mountinfo --quiet --netdev "$1"  && return 0
+	mountinfo --quiet --nonetdev "$1" && return 1
+
+	# Fall back on fs types
 	local t=$(mountinfo --fstype "$1")
 	for x in ${RC_NET_FS_LIST}; do
 		[ "${x}" = "${t}" ] && return 0
--- a/sh/rc-mount.sh
+++ b/sh/rc-mount.sh
@@ -12,8 +12,8 @@ do_unmount() {
 		f_kill="-"
 	fi

-	mountinfo ${2:+--skip-point-regex} $2 ${3:+--node-regex} $3 ${4:+--fstype-regex} $4 ${5:+--skip-fstype-regex} $5 | \
-	while read mnt; do
+	shift
+	mountinfo "$@" | while read mnt; do
 		case "${cmd}" in
 			umount*)
 				# If we're using the mount (probably /usr) then don't unmount us
--- a/src/mountinfo.c
+++ b/src/mountinfo.c
@@ -15,6 +15,8 @@
 #include <sys/param.h>
 #include <sys/ucred.h>
 #include <sys/mount.h>
+#elif defined (__linux__)
+#include <mntent.h>
 #endif

 #include <errno.h>
@@ -38,6 +40,12 @@ typedef enum {
 	mount_options
 } mount_type;

+typedef enum {
+	net_ignore,
+	net_yes,
+	net_no
+} net_opts;
+
 struct args {
 	regex_t *node_regex;
 	regex_t *skip_node_regex;
@@ -47,10 +55,12 @@ struct args {
 	regex_t *skip_options_regex;
 	char **mounts;
 	mount_type mount_type;
+	net_opts netdev;
 };

 static int process_mount (char ***list, struct args *args,
-						  char *from, char *to, char *fstype, char *options)
+						  char *from, char *to, char *fstype, char *options,
+						  int netdev)
 {
 	char *p;

@@ -62,26 +72,34 @@ static int process_mount (char ***list, struct args *args,
 		return (-1);
 #endif

-	if (args->node_regex &&
-		regexec (args->node_regex, from, 0, NULL, 0) != 0)
-		return (1);
-	if (args->skip_node_regex &&
-		regexec (args->skip_node_regex, from, 0, NULL, 0) == 0)
-		return (1);
+	if (args->netdev == net_yes && netdev != -1) {
+		if (netdev != 0)
+			return (1);
+	} else if (args->netdev == net_no && netdev != -1) {
+		if (netdev != 1)
+			return (1);
+	} else {
+		if (args->node_regex &&
+			regexec (args->node_regex, from, 0, NULL, 0) != 0)
+			return (1);
+		if (args->skip_node_regex &&
+			regexec (args->skip_node_regex, from, 0, NULL, 0) == 0)
+			return (1);

-	if (args->fstype_regex &&
-		regexec (args->fstype_regex, fstype, 0, NULL, 0) != 0)
-		return (-1);
-	if (args->skip_fstype_regex &&
-		regexec (args->skip_fstype_regex, fstype, 0, NULL, 0) == 0)
-		return (-1);
+		if (args->fstype_regex &&
+			regexec (args->fstype_regex, fstype, 0, NULL, 0) != 0)
+			return (-1);
+		if (args->skip_fstype_regex &&
+			regexec (args->skip_fstype_regex, fstype, 0, NULL, 0) == 0)
+			return (-1);

-	if (args->options_regex &&
-		regexec (args->options_regex, options, 0, NULL, 0) != 0)
-		return (-1);
-	if (args->skip_options_regex &&
-		regexec (args->skip_options_regex, options, 0, NULL, 0) == 0)
-		return (-1);
+		if (args->options_regex &&
+			regexec (args->options_regex, options, 0, NULL, 0) != 0)
+			return (-1);
+		if (args->skip_options_regex &&
+			regexec (args->skip_options_regex, options, 0, NULL, 0) == 0)
+			return (-1);
+	}

 	if (args->mounts) {
 		bool found = false;
@@ -169,9 +187,12 @@ static char **find_mounts (struct args *args)
 		eerrorx ("getmntinfo: %s", strerror (errno));

 	for (i = 0; i < nmnts; i++) {
+		int netdev = 0;
 		flags = mnts[i].f_flags & MNT_VISFLAGMASK;
 		for (o = optnames; flags && o->o_opt; o++) {
 			if (flags & o->o_opt) {
+				if (o->o_opt == MNT_LOCAL)
+					netdev = 1;
 				if (! options)
 					options = xstrdup (o->o_name);
 				else {
@@ -188,7 +209,8 @@ static char **find_mounts (struct args *args)
 					   mnts[i].f_mntfromname,
 					   mnts[i].f_mntonname,
 					   mnts[i].f_fstypename,
-					   options);
+					   options,
+					   netdev);

 		free (options);
 		options = NULL;
@@ -198,6 +220,20 @@ static char **find_mounts (struct args *args)
 }

 #elif defined (__linux__)
+static struct mntent *getmntfile (const char *file)
+{
+	struct mntent *ent = NULL;
+	FILE *fp;
+
+	fp = setmntent ("/etc/fstab", "r");
+	while ((ent = getmntent (fp)))
+		if (strcmp (file, ent->mnt_dir) == 0)
+			break;
+	endmntent (fp);
+	
+	return (ent);
+}
+
 static char **find_mounts (struct args *args)
 {
 	FILE *fp;
@@ -208,18 +244,26 @@ static char **find_mounts (struct args *args)
 	char *fst;
 	char *opts;
 	char **list = NULL;
+	struct mntent *ent;
+	int netdev;

 	if ((fp = fopen ("/proc/mounts", "r")) == NULL)
 		eerrorx ("getmntinfo: %s", strerror (errno));

 	while (fgets (buffer, sizeof (buffer), fp)) {
+		netdev = -1;
 		p = buffer;
 		from = strsep (&p, " ");
 		to = strsep (&p, " ");
 		fst = strsep (&p, " ");
 		opts = strsep (&p, " ");

-		process_mount (&list, args, from, to, fst, opts);
+		if ((ent = getmntfile (to))) {
+			if (strstr (ent->mnt_opts, "_netdev"))
+				netdev = 0;
+		}
+
+		process_mount (&list, args, from, to, fst, opts, netdev);
 	}
 	fclose (fp);

@@ -260,6 +304,8 @@ static struct option longopts[] = {
 	{ "options",             0, NULL, 'i'},
 	{ "fstype",              0, NULL, 's'},
 	{ "node",                0, NULL, 't'},
+	{ "netdev",				 0, NULL, 'e'},
+	{ "nonetdev",            0, NULL, 'E'},
 	longopts_COMMON
 	{ NULL,             0, NULL, 0}
 };
@@ -298,11 +344,18 @@ int mountinfo (int argc, char **argv)

 	memset (&args, 0, sizeof (struct args));
 	args.mount_type = mount_to;
+	args.netdev = net_ignore;

 	while ((opt = getopt_long (argc, argv, getoptstring,
 							   longopts, (int *) 0)) != -1)
 	{
 		switch (opt) {
+			case 'e':
+				args.netdev = net_yes;
+				break;
+			case 'E':
+				args.netdev = net_no;
+				break;
 			case 'f':
 				DO_REG (args.fstype_regex);
 				break;