/*
- * Copyright (c) 1980 Regents of the University of California.
- * All rights reserved. The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+ * Copyright (c) 1980, 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * %sccs.include.redist.c%
*/
#ifndef lint
char copyright[] =
-"@(#) Copyright (c) 1980 Regents of the University of California.\n\
+"@(#) Copyright (c) 1980, 1989 The Regents of the University of California.\n\
All rights reserved.\n";
-#endif not lint
+#endif /* not lint */
#ifndef lint
-static char sccsid[] = "@(#)mount.c 5.11 (Berkeley) %G%";
-#endif not lint
+static char sccsid[] = "@(#)mount.c 5.39 (Berkeley) %G%";
+#endif /* not lint */
#include "pathnames.h"
#include <sys/param.h>
#include <sys/file.h>
#include <sys/time.h>
+#include <sys/wait.h>
#include <fstab.h>
#include <errno.h>
#include <stdio.h>
-#include <strings.h>
-#include <sys/dir.h>
-#include <sys/uio.h>
-#include <sys/namei.h>
+#include <signal.h>
+#include <string.h>
#include <sys/mount.h>
#ifdef NFS
#include <sys/socket.h>
#include <nfs/nfs.h>
#endif
+#define DEFAULT_ROOTUID -2
+
#define BADTYPE(type) \
(strcmp(type, FSTAB_RO) && strcmp(type, FSTAB_RW) && \
strcmp(type, FSTAB_RQ))
#define SETTYPE(type) \
(!strcmp(type, FSTAB_RW) || !strcmp(type, FSTAB_RQ))
-static int fake, verbose, mnttype;
-char **envp;
+int fake, verbose, updateflg, mnttype;
+char *mntname, **envp;
+char **vfslist, **makevfslist();
#ifdef NFS
int xdr_dir(), xdr_fh();
char *getnfsargs();
-struct nfs_args nfsargs = {
- (struct sockaddr_in *)0,
+struct nfs_args nfsdefargs = {
+ (struct sockaddr *)0,
+ SOCK_DGRAM,
+ 0,
(nfsv2fh_t *)0,
0,
NFS_WSIZE,
u_long stat;
nfsv2fh_t nfh;
};
-int retrycnt = 10000;
+#define DEF_RETRY 10000
+int retrycnt;
#define BGRND 1
#define ISBGRND 2
int opflags = 0;
extern char *optarg;
extern int optind;
register struct fstab *fs;
- register int cnt;
- int all, ch, rval, sfake, i;
+ int all, ch, rval, flags, ret, pid, i;
long mntsize;
- struct statfs statfsbuf, *mntbuf;
+ struct statfs *mntbuf, *getmntpt();
char *type, *options = NULL;
+ FILE *pidfile;
envp = arge;
all = 0;
type = NULL;
mnttype = MOUNT_UFS;
- while ((ch = getopt(argc, argv, "afrwvt:o:")) != EOF)
+ mntname = "ufs";
+ while ((ch = getopt(argc, argv, "afrwuvt:o:")) != EOF)
switch((char)ch) {
case 'a':
all = 1;
case 'r':
type = FSTAB_RO;
break;
+ case 'u':
+ updateflg = MNT_UPDATE;
+ break;
case 'v':
verbose = 1;
break;
options = optarg;
break;
case 't':
- if (!strcmp(optarg, "ufs")) {
- mnttype = MOUNT_UFS;
- break;
- }
- if (!strcmp(optarg, "nfs")) {
- mnttype = MOUNT_NFS;
- break;
- }
- if (!strcmp(optarg, "mfs")) {
- mnttype = MOUNT_MFS;
- break;
- }
- /* fall through */
+ vfslist = makevfslist(optarg);
+ mnttype = getmnttype(optarg);
+ break;
case '?':
default:
usage();
if (all) {
rval = 0;
- for (sfake = fake; fs = getfsent(); fake = sfake) {
+ while (fs = getfsent()) {
if (BADTYPE(fs->fs_type))
continue;
+ if (badvfsname(fs->fs_vfstype, vfslist))
+ continue;
/* `/' is special, it's always mounted */
if (!strcmp(fs->fs_file, "/"))
- fake = 1;
- rval |= mountfs(fs->fs_spec, fs->fs_file,
- type ? type : fs->fs_type, options, fs->fs_mntops);
+ flags = MNT_UPDATE;
+ else
+ flags = updateflg;
+ mnttype = getmnttype(fs->fs_vfstype);
+ rval |= mountfs(fs->fs_spec, fs->fs_file, flags,
+ type, options, fs->fs_mntops);
}
exit(rval);
}
if (argc == 0) {
if (verbose || fake || type)
usage();
- if ((mntsize = getfsstat(0, 0)) < 0) {
- perror("mount");
+ if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0) {
+ fprintf(stderr,
+ "mount: cannot get mount information\n");
exit(1);
}
- mntbuf = 0;
- do {
- if (mntbuf)
- free(mntbuf);
- i = (mntsize + 1) * sizeof(struct statfs);
- if ((mntbuf = (struct statfs *)malloc(i)) == 0) {
- fprintf(stderr,
- "no space for mount table buffer\n");
- exit(1);
- }
- if ((mntsize = getfsstat(mntbuf, i)) < 0) {
- perror("mount");
- exit(1);
- }
- } while (i == mntsize * sizeof(struct statfs));
for (i = 0; i < mntsize; i++) {
- if (mntbuf[i].f_flags & M_RDONLY)
- type = "ro";
- else
- type = "rw";
+ if (badvfstype(mntbuf[i].f_type, vfslist))
+ continue;
prmount(mntbuf[i].f_mntfromname, mntbuf[i].f_mntonname,
- type);
+ mntbuf[i].f_flags);
}
exit(0);
}
- if (all)
- usage();
-
- if (argc == 1) {
+ if (argc == 1 && updateflg) {
+ if ((mntbuf = getmntpt(*argv)) == NULL) {
+ fprintf(stderr,
+ "mount: unknown special file or file system %s.\n",
+ *argv);
+ exit(1);
+ }
+ mnttype = mntbuf->f_type;
+ if (!strcmp(mntbuf->f_mntfromname, "root_device")) {
+ fs = getfsfile("/");
+ strcpy(mntbuf->f_mntfromname, fs->fs_spec);
+ }
+ ret = mountfs(mntbuf->f_mntfromname, mntbuf->f_mntonname,
+ updateflg, type, options, (char *)NULL);
+ } else if (argc == 1) {
if (!(fs = getfsfile(*argv)) && !(fs = getfsspec(*argv))) {
fprintf(stderr,
"mount: unknown special file or file system %s.\n",
"mount: %s has unknown file system type.\n", *argv);
exit(1);
}
- exit(mountfs(fs->fs_spec, fs->fs_file,
- type ? type : fs->fs_type, options, fs->fs_mntops));
- }
-
- if (argc != 2)
+ mnttype = getmnttype(fs->fs_vfstype);
+ ret = mountfs(fs->fs_spec, fs->fs_file, updateflg,
+ type, options, fs->fs_mntops);
+ } else if (argc != 2) {
usage();
-
- exit(mountfs(argv[0], argv[1], type ? type : "rw", options, NULL));
+ ret = 1;
+ } else {
+ /*
+ * If -t flag has not been specified, and spec
+ * contains either a ':' or a '@' then assume that
+ * an NFS filesystem is being specified ala Sun.
+ */
+ if (vfslist == (char **)0 &&
+ (index(argv[0], ':') || index(argv[0], '@')))
+ mnttype = MOUNT_NFS;
+ ret = mountfs(argv[0], argv[1], updateflg, type, options,
+ (char *)NULL);
+ }
+ if ((pidfile = fopen(_PATH_MOUNTDPID, "r")) != NULL) {
+ pid = 0;
+ fscanf(pidfile, "%d", &pid);
+ fclose(pidfile);
+ if (pid > 0)
+ kill(pid, SIGHUP);
+ }
+ exit (ret);
}
-mountfs(spec, name, type, options, mntopts)
+mountfs(spec, name, flags, type, options, mntopts)
char *spec, *name, *type, *options, *mntopts;
+ int flags;
{
extern int errno;
- register int cnt;
- int flags, argc, status, i;
+ union wait status;
+ pid_t pid;
+ int argc, i;
struct ufs_args args;
+ struct nfs_args nfsargs;
char *argp, *argv[50];
-
- if (!fake) {
- flags = 0;
- if (!strcmp(type, FSTAB_RO))
- flags |= M_RDONLY;
- switch (mnttype) {
- case MOUNT_UFS:
- if (options)
- getufsopts(options, &flags);
- if (mntopts)
- getufsopts(mntopts, &flags);
- args.fspec = spec;
- argp = (caddr_t)&args;
- break;
+ char execname[MAXPATHLEN + 1], flagval[12];
+
+ nfsargs = nfsdefargs;
+ if (mntopts)
+ getstdopts(mntopts, &flags);
+ if (options)
+ getstdopts(options, &flags);
+ if (type)
+ getstdopts(type, &flags);
+ switch (mnttype) {
+ case MOUNT_UFS:
+ if (mntopts)
+ getufsopts(mntopts, &flags);
+ if (options)
+ getufsopts(options, &flags);
+ args.fspec = spec;
+ args.exroot = DEFAULT_ROOTUID;
+ if (flags & MNT_RDONLY)
+ args.exflags = MNT_EXRDONLY;
+ else
+ args.exflags = 0;
+ argp = (caddr_t)&args;
+ break;
#ifdef NFS
- case MOUNT_NFS:
- if (options)
- getnfsopts(options, &nfsargs, &opflags,
- &retrycnt);
- if (mntopts)
- getnfsopts(mntopts, &nfsargs, &opflags,
- &retrycnt);
- if (argp = getnfsargs(spec, name, type))
- break;
- return (1);
+ case MOUNT_NFS:
+ retrycnt = DEF_RETRY;
+ if (mntopts)
+ getnfsopts(mntopts, &nfsargs, &opflags, &retrycnt);
+ if (options)
+ getnfsopts(options, &nfsargs, &opflags, &retrycnt);
+ if (argp = getnfsargs(spec, &nfsargs))
+ break;
+ return (1);
#endif /* NFS */
-#ifdef MFS
- case MOUNT_MFS:
- argv[0] = "memfs";
- argc = 1;
- if (options)
- argc += getmfsopts(options, &argv[argc]);
- if (mntopts)
- argc += getmfsopts(mntopts, &argv[argc]);
- argv[argc++] = spec;
- argv[argc++] = name;
- if (i = vfork()) {
- if (i == -1) {
- perror("mount: vfork for memfs");
- return (1);
- }
- if (waitpid(i, &status, 0) != -1 &&
- WIFEXITED(status) &&
- WEXITSTATUS(status) != 0)
- return (WEXITSTATUS(status));
- spec = "memfs";
- goto out;
+ case MOUNT_MFS:
+ default:
+ argv[0] = mntname;
+ argc = 1;
+ if (flags) {
+ argv[argc++] = "-F";
+ sprintf(flagval, "%d", flags);
+ argv[argc++] = flagval;
+ }
+ if (mntopts)
+ argc += getexecopts(mntopts, &argv[argc]);
+ if (options)
+ argc += getexecopts(options, &argv[argc]);
+ argv[argc++] = spec;
+ argv[argc++] = name;
+ argv[argc++] = NULL;
+ sprintf(execname, "%s/mount_%s", _PATH_EXECDIR, mntname);
+ if (verbose) {
+ (void)printf("exec: %s", execname);
+ for (i = 1; i < argc - 1; i++)
+ (void)printf(" %s", argv[i]);
+ (void)printf("\n");
+ }
+ if (fake)
+ break;
+ if (pid = vfork()) {
+ if (pid == -1) {
+ perror("mount: vfork starting file system");
+ return (1);
}
- execve(_PATH_MEMFS, argv, envp);
- perror(_PATH_MEMFS);
- exit (1);
-#endif /* MFS */
+ if (waitpid(pid, &status, 0) != -1 &&
+ WIFEXITED(status) &&
+ WEXITSTATUS(status) != 0)
+ return (WEXITSTATUS(status));
+ spec = mntname;
+ goto out;
+ }
+ execve(execname, argv, envp);
+ fprintf(stderr, "mount: cannot exec %s for %s: ",
+ execname, name);
+ perror((char *)NULL);
+ exit (1);
+ /* NOTREACHED */
- default:
- if (opflags & ISBGRND)
- exit(1);
- fprintf(stderr, "%d: unknown mount type\n", mnttype);
+ }
+ if (!fake && mount(mnttype, name, flags, argp)) {
+ if (opflags & ISBGRND)
exit(1);
- /* NOTREACHED */
-
- };
- if (mount(mnttype, name, flags, argp)) {
- if (opflags & ISBGRND)
- exit(1);
- fprintf(stderr, "%s on %s: ", spec, name);
- switch (errno) {
- case EMFILE:
- fprintf(stderr, "Mount table full\n");
- break;
- case EINVAL:
+ fprintf(stderr, "%s on %s: ", spec, name);
+ switch (errno) {
+ case EMFILE:
+ fprintf(stderr, "Mount table full\n");
+ break;
+ case EINVAL:
+ if (flags & MNT_UPDATE)
+ fprintf(stderr, "Specified device does %s\n",
+ "not match mounted device");
+ else
fprintf(stderr, "Bogus super block\n");
- break;
- default:
- perror((char *)NULL);
- break;
- }
- return(1);
+ break;
+ case EOPNOTSUPP:
+ fprintf(stderr, "Operation not supported\n");
+ break;
+ default:
+ perror((char *)NULL);
+ break;
}
+ return(1);
}
out:
if (verbose)
- prmount(spec, name, type);
+ prmount(spec, name, flags);
if (opflags & ISBGRND)
- exit();
- else
- return(0);
+ exit(1);
+ return(0);
}
static
-prmount(spec, name, type)
- char *spec, *name, *type;
+prmount(spec, name, flags)
+ char *spec, *name;
+ register short flags;
{
- register char *root;
+ register int first;
if (opflags & ISBGRND)
return;
- /*
- * trim trailing /'s and find last component of name
- */
- for (root = index(spec, '\0'); *--root == '/';)
- /* void */;
- *++root = '\0';
- if (root = rindex(spec, '/'))
- spec = root + 1;
- printf("%s on %s", spec, name);
- if (!strcmp(type, FSTAB_RO))
- printf("\t(read-only)");
- else if (!strcmp(type, FSTAB_RQ))
- printf("\t(with quotas)");
- printf("\n");
+ (void)printf("%s on %s", spec, name);
+ if (!(flags & MNT_VISFLAGMASK)) {
+ (void)printf("\n");
+ return;
+ }
+ first = 0;
+#define PR(msg) (void)printf("%s%s", !first++ ? " (" : ", ", msg)
+ if (flags & MNT_RDONLY)
+ PR("read-only");
+ if (flags & MNT_NOEXEC)
+ PR("noexec");
+ if (flags & MNT_NOSUID)
+ PR("nosuid");
+ if (flags & MNT_NODEV)
+ PR("nodev");
+ if (flags & MNT_SYNCHRONOUS)
+ PR("synchronous");
+ if (flags & MNT_QUOTA)
+ PR("with quotas");
+ if (flags & MNT_LOCAL)
+ PR("local");
+ if (flags & MNT_EXPORTED)
+ if (flags & MNT_EXRDONLY)
+ PR("NFS exported read-only");
+ else
+ PR("NFS exported");
+ (void)printf(")\n");
+}
+
+getmnttype(fstype)
+ char *fstype;
+{
+
+ mntname = fstype;
+ if (!strcmp(fstype, "ufs"))
+ return (MOUNT_UFS);
+ if (!strcmp(fstype, "nfs"))
+ return (MOUNT_NFS);
+ if (!strcmp(fstype, "mfs"))
+ return (MOUNT_MFS);
+ return (0);
}
-static
usage()
{
- fprintf(stderr, "usage: mount [-afrw]\nor mount [-frw] special | node\nor mount [-frw] special node\n");
+
+ fprintf(stderr, "usage:\n mount %s %s\n mount %s\n mount %s\n",
+ "[ -frwu ] [ -t nfs | ufs | external_type ]",
+ "[ -o options ] special node",
+ "[ -afrwu ] [ -t nfs | ufs | external_type ]",
+ "[ -frwu ] special | node");
exit(1);
}
-getufsopts(options, flagp)
+getstdopts(options, flagp)
char *options;
- long *flagp;
+ int *flagp;
{
+ register char *opt;
+ int negative;
+ char optbuf[BUFSIZ];
+
+ (void)strcpy(optbuf, options);
+ for (opt = strtok(optbuf, ","); opt; opt = strtok((char *)NULL, ",")) {
+ if (opt[0] == 'n' && opt[1] == 'o') {
+ negative++;
+ opt += 2;
+ } else {
+ negative = 0;
+ }
+ if (!negative && !strcasecmp(opt, FSTAB_RO)) {
+ *flagp |= MNT_RDONLY;
+ continue;
+ }
+ if (!negative && !strcasecmp(opt, FSTAB_RW)) {
+ *flagp &= ~MNT_RDONLY;
+ continue;
+ }
+ if (!strcasecmp(opt, "exec")) {
+ if (negative)
+ *flagp |= MNT_NOEXEC;
+ else
+ *flagp &= ~MNT_NOEXEC;
+ continue;
+ }
+ if (!strcasecmp(opt, "suid")) {
+ if (negative)
+ *flagp |= MNT_NOSUID;
+ else
+ *flagp &= ~MNT_NOSUID;
+ continue;
+ }
+ if (!strcasecmp(opt, "dev")) {
+ if (negative)
+ *flagp |= MNT_NODEV;
+ else
+ *flagp &= ~MNT_NODEV;
+ continue;
+ }
+ if (!strcasecmp(opt, "synchronous")) {
+ if (!negative)
+ *flagp |= MNT_SYNCHRONOUS;
+ else
+ *flagp &= ~MNT_SYNCHRONOUS;
+ continue;
+ }
+ }
+}
+/* ARGSUSED */
+getufsopts(options, flagp)
+ char *options;
+ int *flagp;
+{
return;
}
-#ifdef MFS
-getmfsopts(options, argv)
+getexecopts(options, argv)
char *options;
char **argv;
{
register int argc = 0;
register char *opt;
- char *strtok();
- for (opt = strtok(options, ","); opt; opt = strtok(NULL, ",")) {
+ for (opt = strtok(options, ","); opt; opt = strtok((char *)NULL, ",")) {
if (opt[0] != '-')
continue;
argv[argc++] = opt;
}
return (argc);
}
-#endif /* MFS */
+
+struct statfs *
+getmntpt(name)
+ char *name;
+{
+ long mntsize;
+ register long i;
+ struct statfs *mntbuf;
+
+ mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
+ for (i = 0; i < mntsize; i++) {
+ if (!strcmp(mntbuf[i].f_mntfromname, name) ||
+ !strcmp(mntbuf[i].f_mntonname, name))
+ return (&mntbuf[i]);
+ }
+ return ((struct statfs *)0);
+}
+
+static int skipvfs;
+
+badvfstype(vfstype, vfslist)
+ short vfstype;
+ char **vfslist;
+{
+
+ if (vfslist == 0)
+ return(0);
+ while (*vfslist) {
+ if (vfstype == getmnttype(*vfslist))
+ return(skipvfs);
+ vfslist++;
+ }
+ return (!skipvfs);
+}
+
+badvfsname(vfsname, vfslist)
+ char *vfsname;
+ char **vfslist;
+{
+
+ if (vfslist == 0)
+ return(0);
+ while (*vfslist) {
+ if (strcmp(vfsname, *vfslist) == 0)
+ return(skipvfs);
+ vfslist++;
+ }
+ return (!skipvfs);
+}
+
+char **
+makevfslist(fslist)
+ char *fslist;
+{
+ register char **av, *nextcp;
+ register int i;
+
+ if (fslist == NULL)
+ return (NULL);
+ if (fslist[0] == 'n' && fslist[1] == 'o') {
+ fslist += 2;
+ skipvfs = 1;
+ }
+ for (i = 0, nextcp = fslist; *nextcp; nextcp++)
+ if (*nextcp == ',')
+ i++;
+ av = (char **)malloc((size_t)(i+2) * sizeof(char *));
+ if (av == NULL)
+ return (NULL);
+ nextcp = fslist;
+ i = 0;
+ av[i++] = nextcp;
+ while (nextcp = index(nextcp, ',')) {
+ *nextcp++ = '\0';
+ av[i++] = nextcp;
+ }
+ av[i++] = 0;
+ return (av);
+}
#ifdef NFS
/*
if (!strcmp(cp, "bg")) {
*opflagsp |= BGRND;
} else if (!strcmp(cp, "soft")) {
+ if (nfsargsp->flags & NFSMNT_SPONGY) {
+ fprintf(stderr,
+ "Options soft, spongy mutually exclusive\n");
+ exit(1);
+ }
nfsargsp->flags |= NFSMNT_SOFT;
+ } else if (!strcmp(cp, "spongy")) {
+ if (nfsargsp->flags & NFSMNT_SOFT) {
+ fprintf(stderr,
+ "Options soft, spongy mutually exclusive\n");
+ exit(1);
+ }
+ nfsargsp->flags |= NFSMNT_SPONGY;
} else if (!strcmp(cp, "intr")) {
nfsargsp->flags |= NFSMNT_INT;
+ } else if (!strcmp(cp, "tcp")) {
+ nfsargsp->sotype = SOCK_STREAM;
+ } else if (!strcmp(cp, "noconn")) {
+ nfsargsp->flags |= NFSMNT_NOCONN;
} else if (!strcmp(cp, "retry") && num > 0) {
*retrycntp = num;
} else if (!strcmp(cp, "rsize") && num > 0) {
}
cp = nextcp;
}
+ if (nfsargsp->sotype == SOCK_DGRAM) {
+ if (nfsargsp->rsize > NFS_MAXDGRAMDATA)
+ nfsargsp->rsize = NFS_MAXDGRAMDATA;
+ if (nfsargsp->wsize > NFS_MAXDGRAMDATA)
+ nfsargsp->wsize = NFS_MAXDGRAMDATA;
+ }
}
char *
-getnfsargs(spec)
+getnfsargs(spec, nfsargsp)
char *spec;
+ struct nfs_args *nfsargsp;
{
+ extern int errno;
register CLIENT *clp;
struct hostent *hp;
- struct sockaddr_in saddr;
+ static struct sockaddr_in saddr;
struct timeval pertry, try;
enum clnt_stat clnt_stat;
int so = RPC_ANYSOCK;
char *hostp, *delimp;
u_short tport;
- struct nfhret nfhret;
- char nam[MNAMELEN + 1];
+ static struct nfhret nfhret;
+ static char nam[MNAMELEN + 1];
strncpy(nam, spec, MNAMELEN);
nam[MNAMELEN] = '\0';
if (nfhret.stat) {
if (opflags & ISBGRND)
exit(1);
- fprintf(stderr, "Can't access %s, errno=%d\n", spec,
- nfhret.stat);
+ fprintf(stderr, "Can't access %s: ", spec);
+ errno = nfhret.stat;
+ perror((char *)NULL);
return (0);
}
saddr.sin_port = htons(tport);
- nfsargs.addr = &saddr;
- nfsargs.fh = &nfhret.nfh;
- nfsargs.hostname = nam;
- return ((caddr_t)&nfsargs);
+ nfsargsp->addr = (struct sockaddr *) &saddr;
+ nfsargsp->fh = &nfhret.nfh;
+ nfsargsp->hostname = nam;
+ return ((caddr_t)nfsargsp);
}
/*