3791f11fd7
and SIGQUIT during shutdown", but rpc.umntall is also run at boot time, so ignoring these signals is a really bad idea: it makes it impossible to ^C the process as it waits for a server response. I can't see any reason to block these signals during shutdown either. MFC after: 3 days
263 lines
6.7 KiB
C
263 lines
6.7 KiB
C
/*
|
|
* Copyright (c) 1999 Martin Blapp
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/ucred.h>
|
|
#include <sys/mount.h>
|
|
|
|
#include <rpc/rpc.h>
|
|
#include <nfs/rpcv2.h>
|
|
|
|
#include <err.h>
|
|
#include <netdb.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "mounttab.h"
|
|
|
|
int verbose;
|
|
|
|
static int do_umount (char *, char *);
|
|
static int do_umntall (char *);
|
|
static int is_mounted (char *, char *);
|
|
static void usage (void);
|
|
int xdr_dir (XDR *, char *);
|
|
|
|
int
|
|
main(int argc, char **argv) {
|
|
int ch, keep, success, pathlen;
|
|
time_t expire, now;
|
|
char *host, *path;
|
|
struct mtablist *mtab;
|
|
|
|
expire = 0;
|
|
host = path = NULL;
|
|
success = keep = verbose = 0;
|
|
while ((ch = getopt(argc, argv, "h:kp:ve:")) != -1)
|
|
switch (ch) {
|
|
case 'h':
|
|
host = optarg;
|
|
break;
|
|
case 'e':
|
|
expire = atoi(optarg);
|
|
break;
|
|
case 'k':
|
|
keep = 1;
|
|
break;
|
|
case 'p':
|
|
path = optarg;
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
case '?':
|
|
usage();
|
|
default:
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
/* Default expiretime is one day */
|
|
if (expire == 0)
|
|
expire = 86400;
|
|
time(&now);
|
|
|
|
/* Read PATH_MOUNTTAB. */
|
|
if (!read_mtab()) {
|
|
if (verbose)
|
|
warnx("no mounttab entries (%s does not exist)",
|
|
PATH_MOUNTTAB);
|
|
mtabhead = NULL;
|
|
}
|
|
|
|
if (host == NULL && path == NULL) {
|
|
/* Check each entry and do any necessary unmount RPCs. */
|
|
for (mtab = mtabhead; mtab != NULL; mtab = mtab->mtab_next) {
|
|
if (*mtab->mtab_host == '\0')
|
|
continue;
|
|
if (mtab->mtab_time + expire < now) {
|
|
/* Clear expired entry. */
|
|
if (verbose)
|
|
warnx("remove expired entry %s:%s",
|
|
mtab->mtab_host, mtab->mtab_dirp);
|
|
bzero(mtab->mtab_host,
|
|
sizeof(mtab->mtab_host));
|
|
continue;
|
|
}
|
|
if (keep && is_mounted(mtab->mtab_host,
|
|
mtab->mtab_dirp)) {
|
|
if (verbose)
|
|
warnx("skip entry %s:%s",
|
|
mtab->mtab_host, mtab->mtab_dirp);
|
|
continue;
|
|
}
|
|
if (do_umount(mtab->mtab_host, mtab->mtab_dirp)) {
|
|
if (verbose)
|
|
warnx("umount RPC for %s:%s succeeded",
|
|
mtab->mtab_host, mtab->mtab_dirp);
|
|
/* Remove all entries for this host + path. */
|
|
clean_mtab(mtab->mtab_host, mtab->mtab_dirp,
|
|
verbose);
|
|
}
|
|
}
|
|
success = 1;
|
|
} else {
|
|
if (host == NULL && path != NULL)
|
|
/* Missing hostname. */
|
|
usage();
|
|
if (path == NULL) {
|
|
/* Do a RPC UMNTALL for this specific host */
|
|
success = do_umntall(host);
|
|
if (verbose && success)
|
|
warnx("umntall RPC for %s succeeded", host);
|
|
} else {
|
|
/* Do a RPC UMNTALL for this specific mount */
|
|
for (pathlen = strlen(path);
|
|
pathlen > 1 && path[pathlen - 1] == '/'; pathlen--)
|
|
path[pathlen - 1] = '\0';
|
|
success = do_umount(host, path);
|
|
if (verbose && success)
|
|
warnx("umount RPC for %s:%s succeeded", host,
|
|
path);
|
|
}
|
|
/* If successful, remove any corresponding mounttab entries. */
|
|
if (success)
|
|
clean_mtab(host, path, verbose);
|
|
}
|
|
/* Write and unlink PATH_MOUNTTAB if necessary */
|
|
if (success)
|
|
success = write_mtab(verbose);
|
|
free_mtab();
|
|
exit (success ? 0 : 1);
|
|
}
|
|
|
|
/*
|
|
* Send a RPC_MNT UMNTALL request to hostname.
|
|
* XXX This works for all mountd implementations,
|
|
* but produces a RPC IOERR on non FreeBSD systems.
|
|
*/
|
|
int
|
|
do_umntall(char *hostname) {
|
|
enum clnt_stat clnt_stat;
|
|
struct timeval try;
|
|
CLIENT *clp;
|
|
|
|
clp = clnt_create(hostname, RPCPROG_MNT, RPCMNT_VER1, "udp");
|
|
if (clp == NULL) {
|
|
warnx("%s: %s", hostname, clnt_spcreateerror("RPCPROG_MNT"));
|
|
return (0);
|
|
}
|
|
clp->cl_auth = authunix_create_default();
|
|
try.tv_sec = 3;
|
|
try.tv_usec = 0;
|
|
clnt_stat = clnt_call(clp, RPCMNT_UMNTALL, xdr_void, (caddr_t)0,
|
|
xdr_void, (caddr_t)0, try);
|
|
if (clnt_stat != RPC_SUCCESS)
|
|
warnx("%s: %s", hostname, clnt_sperror(clp, "RPCMNT_UMNTALL"));
|
|
auth_destroy(clp->cl_auth);
|
|
clnt_destroy(clp);
|
|
return (clnt_stat == RPC_SUCCESS);
|
|
}
|
|
|
|
/*
|
|
* Send a RPC_MNT UMOUNT request for dirp to hostname.
|
|
*/
|
|
int
|
|
do_umount(char *hostname, char *dirp) {
|
|
enum clnt_stat clnt_stat;
|
|
struct timeval try;
|
|
CLIENT *clp;
|
|
|
|
clp = clnt_create(hostname, RPCPROG_MNT, RPCMNT_VER1, "udp");
|
|
if (clp == NULL) {
|
|
warnx("%s: %s", hostname, clnt_spcreateerror("RPCPROG_MNT"));
|
|
return (0);
|
|
}
|
|
clp->cl_auth = authsys_create_default();
|
|
try.tv_sec = 3;
|
|
try.tv_usec = 0;
|
|
clnt_stat = clnt_call(clp, RPCMNT_UMOUNT, xdr_dir, dirp,
|
|
xdr_void, (caddr_t)0, try);
|
|
if (clnt_stat != RPC_SUCCESS)
|
|
warnx("%s: %s", hostname, clnt_sperror(clp, "RPCMNT_UMOUNT"));
|
|
auth_destroy(clp->cl_auth);
|
|
clnt_destroy(clp);
|
|
return (clnt_stat == RPC_SUCCESS);
|
|
}
|
|
|
|
/*
|
|
* Check if the entry is still/already mounted.
|
|
*/
|
|
int
|
|
is_mounted(char *hostname, char *dirp) {
|
|
struct statfs *mntbuf;
|
|
char name[MNAMELEN + 1];
|
|
size_t bufsize;
|
|
int mntsize, i;
|
|
|
|
if (strlen(hostname) + strlen(dirp) >= MNAMELEN)
|
|
return (0);
|
|
snprintf(name, sizeof(name), "%s:%s", hostname, dirp);
|
|
mntsize = getfsstat(NULL, 0, MNT_NOWAIT);
|
|
if (mntsize <= 0)
|
|
return (0);
|
|
bufsize = (mntsize + 1) * sizeof(struct statfs);
|
|
if ((mntbuf = malloc(bufsize)) == NULL)
|
|
err(1, "malloc");
|
|
mntsize = getfsstat(mntbuf, (long)bufsize, MNT_NOWAIT);
|
|
for (i = mntsize - 1; i >= 0; i--) {
|
|
if (strcmp(mntbuf[i].f_mntfromname, name) == 0) {
|
|
free(mntbuf);
|
|
return (1);
|
|
}
|
|
}
|
|
free(mntbuf);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* xdr routines for mount rpc's
|
|
*/
|
|
int
|
|
xdr_dir(XDR *xdrsp, char *dirp) {
|
|
return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
|
|
}
|
|
|
|
static void
|
|
usage() {
|
|
(void)fprintf(stderr, "%s\n",
|
|
"usage: rpc.umntall [-kv] [-e expire] [-h host] [-p path]");
|
|
exit(1);
|
|
}
|