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Don't unmount network filesystems in localmount or halt.sh, #175602.

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This commit is contained in:
Roy Marples 2007-07-11 17:27:46 +00:00
parent e778dcbfb0
commit 5257ba51b9
5 changed files with 105 additions and 69 deletions
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1
ChangeLog
View File

@ -3,6 +3,7 @@
11 Jul 2007; Roy Marples <uberlord@gentoo.org>:
Don't unmount network filesystems in localmount or halt.sh, #175602.
Don't do interactive when changing init, #174141.
10 Jul 2007; Roy Marples <uberlord@gentoo.org>:

7
init.d/halt.sh
View File

@ -65,7 +65,12 @@ if [ "${RC_UNAME}" = "Linux" ] ; then
# We need the do_unmount function
. "${RC_LIBDIR}"/sh/rc-mount.sh
eindent
do_unmount "mount -n -o remount,ro" "^(/dev|/dev/pts|/dev/shm|/proc|/proc/.*|/sys)$"
fs=
for x in ${RC_NET_FS_LIST} ; do
fs="${fs}${fs:+|}${x}"
done
[ -n "${fs}" ] && fs="^(${fs})$"
do_unmount "mount -n -o remount,ro" "^(/dev|/dev/pts|/dev/shm|/proc|/proc/.*|/sys)$" "" "" "${fs}"
eoutdent
eend $?
unmounted=$?

10
init.d/localmount
View File

@ -202,10 +202,16 @@ stop() {
do_unmount "umount -d" "${no_umounts}" "^/dev/loop"
eoutdent
# Now everything else
# Now everything else, except network filesystems as the
# network should be down by this point.
einfo "Unmounting filesystems"
eindent
do_unmount "umount" "${no_umounts}"
local fs=
for x in ${RC_NET_FS_LIST} ; do
fs="${fs}${fs:+|}${x}"
done
[ -n "${fs}" ] && fs="^(${fs})$"
do_unmount "umount" "${no_umounts}" "" "" "${fs}"
eoutdent
return 0

6
sh/rc-mount.sh
View File

@ -1,9 +1,9 @@
# Copyright 2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# bool do_unmount(char *cmd, char *no_unmounts, char *nodes, char *fslist)
# bool do_unmount(char *cmd, char *no_unmounts, char *nodes, char *fslist, char *no_fslist)
# Handy function to handle all our unmounting needs
# find-mount is a C program to actually find our mounts on our supported OS's
# mountinfo is a C program to actually find our mounts on our supported OS's
do_unmount() {
local cmd="$1" retval=0 retry=
local f_opts="-m -c" f_kill="-s " mnt=
@ -12,7 +12,7 @@ do_unmount() {
f_kill="-"
fi
local mnts="$(mountinfo ${2:+--skip-regex} $2 ${3:+--node-regex} $3 ${4:+--fstype-regex} $4 --reverse \
local mnts="$(mountinfo ${2:+--skip-point-regex} $2 ${3:+--node-regex} $3 ${4:+--fstype-regex} $4 ${5:+--skip-fstype-regex} $5 \
| sed -e "s/'/'\\\\''/g" -e "s/^/'/g" -e "s/$/'/g")"
eval set -- ${mnts}
for mnt in "$@" ; do

150
src/mountinfo.c
View File

@ -31,7 +31,8 @@
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined (__OpenBSD__)
static char **find_mounts (regex_t *node_regex, regex_t *fstype_regex,
static char **find_mounts (regex_t *node_regex, regex_t *skip_node_regex,
regex_t *fstype_regex, regex_t *skip_fstype_regex,
char **mounts, bool list_nodes, bool list_fstype)
{
struct statfs *mnts;
@ -46,9 +47,15 @@ static char **find_mounts (regex_t *node_regex, regex_t *fstype_regex,
if (node_regex &&
regexec (node_regex, mnts[i].f_mntfromname, 0, NULL, 0) != 0)
continue;
if (skip_node_regex &&
regexec (skip_node_regex, mnts[i].f_mntfromname, 0, NULL, 0) == 0)
continue;
if (fstype_regex &&
regexec (fstype_regex, mnts[i].f_fstypename, 0, NULL, 0) != 0)
continue;
if (skip_fstype_regex &&
regexec (skip_fstype_regex, mnts[i].f_fstypename, 0, NULL, 0) == 0)
continue;
if (mounts) {
bool found = false;
@ -73,7 +80,8 @@ static char **find_mounts (regex_t *node_regex, regex_t *fstype_regex,
}
#elif defined (__linux__)
static char **find_mounts (regex_t *node_regex, regex_t *fstype_regex,
static char **find_mounts (regex_t *node_regex, regex_t *skip_node_regex,
regex_t *fstype_regex, regex_t *skip_fstype_regex,
char **mounts, bool list_nodes, bool list_fstype)
{
FILE *fp;
@ -93,6 +101,9 @@ static char **find_mounts (regex_t *node_regex, regex_t *fstype_regex,
if (node_regex &&
regexec (node_regex, from, 0, NULL, 0) != 0)
continue;
if (skip_node_regex &&
regexec (skip_node_regex, from, 0, NULL, 0) == 0)
continue;
to = strsep (&p, " ");
fstype = strsep (&p, " ");
@ -102,6 +113,9 @@ static char **find_mounts (regex_t *node_regex, regex_t *fstype_regex,
if (fstype_regex &&
regexec (fstype_regex, fstype, 0, NULL, 0) != 0)
continue;
if (skip_fstype_regex &&
regexec (skip_fstype_regex, fstype, 0, NULL, 0) == 0)
continue;
if (mounts) {
bool found = false;
@ -130,15 +144,32 @@ static char **find_mounts (regex_t *node_regex, regex_t *fstype_regex,
# error "Operating system not supported!"
#endif
static regex_t *get_regex (char *string)
{
regex_t *reg = rc_xmalloc (sizeof (regex_t));
int result;
char buffer[256];
if ((result = regcomp (reg, string, REG_EXTENDED | REG_NOSUB)) != 0)
{
regerror (result, reg, buffer, sizeof (buffer));
eerrorx ("%s: invalid regex `%s'", APPLET, buffer);
}
return (reg);
}
#include "_usage.h"
#define getoptstring "F:N:S:fnrV" getoptstring_COMMON
#define getoptstring "f:F:n:N:p:P:os" getoptstring_COMMON
static struct option longopts[] = {
{ "fstype-regex", 1, NULL, 'F'},
{ "node-regex", 1, NULL, 'N'},
{ "skip-regex", 1, NULL, 'S'},
{ "fstype", 0, NULL, 'f'},
{ "node", 0, NULL, 'n'},
{ "reverse", 0, NULL, 'r'},
{ "fstype-regex", 1, NULL, 'f'},
{ "skip-fstype-regex", 1, NULL, 'F'},
{ "node-regex", 1, NULL, 'n'},
{ "skip-node-regex", 1, NULL, 'N'},
{ "point-regex", 1, NULL, 'p'},
{ "skip-point-regex", 1, NULL, 'P'},
{ "list-nodes", 0, NULL, 'o'},
{ "list-fstype", 0, NULL, 's'},
longopts_COMMON
{ NULL, 0, NULL, 0}
};
@ -149,100 +180,93 @@ int main (int argc, char **argv)
int i;
regex_t *fstype_regex = NULL;
regex_t *node_regex = NULL;
regex_t *skip_regex = NULL;
regex_t *point_regex = NULL;
regex_t *skip_fstype_regex = NULL;
regex_t *skip_node_regex = NULL;
regex_t *skip_point_regex = NULL;
char **nodes = NULL;
char *node;
int result;
char buffer[256];
bool list_nodes = false;
bool list_fstype = false;
bool reverse = false;
char **mounts = NULL;
int opt;
int result;
#define DO_REG(_var) \
if (_var) free (_var); \
_var = get_regex (optarg);
while ((opt = getopt_long (argc, argv, getoptstring,
longopts, (int *) 0)) != -1)
{
switch (opt) {
case 'F':
if (fstype_regex)
free (fstype_regex);
fstype_regex = rc_xmalloc (sizeof (regex_t));
if ((result = regcomp (fstype_regex, optarg,
REG_EXTENDED | REG_NOSUB)) != 0)
{
regerror (result, fstype_regex, buffer, sizeof (buffer));
eerrorx ("%s: invalid regex `%s'", argv[0], buffer);
}
break;
case 'N':
if (node_regex)
free (node_regex);
node_regex = rc_xmalloc (sizeof (regex_t));
if ((result = regcomp (node_regex, optarg,
REG_EXTENDED | REG_NOSUB)) != 0)
{
regerror (result, node_regex, buffer, sizeof (buffer));
eerrorx ("%s: invalid regex `%s'", argv[0], buffer);
}
break;
case 'S':
if (skip_regex)
free (skip_regex);
skip_regex = rc_xmalloc (sizeof (regex_t));
if ((result = regcomp (skip_regex, optarg,
REG_EXTENDED | REG_NOSUB)) != 0)
{
regerror (result, skip_regex, buffer, sizeof (buffer));
eerrorx ("%s: invalid regex `%s'", argv[0], buffer);
}
break;
case 'f':
list_fstype = true;
list_nodes = false;
DO_REG (fstype_regex);
break;
case 'F':
DO_REG (skip_fstype_regex);
break;
case 'n':
DO_REG (node_regex);
break;
case 'N':
DO_REG (skip_node_regex);
break;
case 'p':
DO_REG (point_regex);
break;
case 'P':
DO_REG (skip_point_regex);
break;
case 'o':
list_nodes = true;
list_fstype = false;
break;
case 'r':
reverse = true;
case 's':
list_nodes = false;
list_fstype = true;
break;
case_RC_COMMON_GETOPT
case_RC_COMMON_GETOPT
}
}
while (optind < argc) {
if (argv[optind][0] != '/')
eerrorx ("%s: `%s' is not a mount point", argv[0], argv[optind]);
mounts = rc_strlist_add (mounts, argv[optind++]);
}
nodes = find_mounts (node_regex, fstype_regex, mounts,
list_nodes, list_fstype);
nodes = find_mounts (node_regex, skip_node_regex,
fstype_regex, skip_fstype_regex,
mounts, list_nodes, list_fstype);
if (node_regex)
regfree (node_regex);
if (skip_node_regex)
regfree (skip_node_regex);
if (fstype_regex)
regfree (fstype_regex);
if (skip_fstype_regex)
regfree (skip_fstype_regex);
if (reverse)
rc_strlist_reverse (nodes);
rc_strlist_reverse (nodes);
result = EXIT_FAILURE;
STRLIST_FOREACH (nodes, node, i) {
if (skip_regex && regexec (skip_regex, node, 0, NULL, 0) == 0)
if (point_regex && regexec (point_regex, node, 0, NULL, 0) != 0)
continue;
if (skip_point_regex && regexec (skip_point_regex, node, 0, NULL, 0) == 0)
continue;
printf ("%s\n", node);
result = EXIT_SUCCESS;
}
rc_strlist_free (nodes);
if (skip_regex)
free (skip_regex);
if (point_regex)
regfree (point_regex);
if (skip_point_regex)
regfree (skip_point_regex);
exit (result);
}