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Vladimir Dronnikov also submitted a CIFS support patch to mount, which I

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heavily reworked here and probably broke.  Tomorrow I need to set up a
copy of samba to test against.  (This compiles, I make no promises beyond that.)
This commit is contained in:
Rob Landley 2006-09-01 08:10:44 +00:00
parent f5bbc692a0
commit 89d9d4d5f7
2 changed files with 55 additions and 8 deletions
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6
util-linux/Config.in
View File

@ -372,6 +372,12 @@ config CONFIG_FEATURE_MOUNT_NFS
help
Enable mounting of NFS file systems.
config CONFIG_FEATURE_MOUNT_CIFS
bool "Support mounting CIFS/SMB file systems"
default n
depends on CONFIG_MOUNT
help
Enable support for samba mounts.
config CONFIG_FEATURE_MOUNT_FLAGS
depends on CONFIG_MOUNT
bool "Support lots of -o flags in mount."

57
util-linux/mount.c
View File

@ -253,8 +253,7 @@ static int mount_it_now(struct mntent *mp, int vfsflags, char *filteropts)
return rc;
}
// Mount one directory. Handles NFS, loopback, autobind, and filesystem type
// Mount one directory. Handles CIFS, NFS, loopback, autobind, and filesystem type
// detection. Returns 0 for success, nonzero for failure.
static int singlemount(struct mntent *mp, int ignore_busy)
@ -270,6 +269,50 @@ static int singlemount(struct mntent *mp, int ignore_busy)
if (mp->mnt_type && !strcmp(mp->mnt_type,"auto")) mp->mnt_type = 0;
// Might this be an CIFS filesystem?
if(ENABLE_FEATURE_MOUNT_CIFS &&
(!mp->mnt_type || !strcmp(mp->mnt_type,"cifs")) &&
(mp->mnt_fsname[0]==mp->mnt_fsname[1] && (mp->mnt_fsname[0]=='/' || mp->mnt_fsname[0]=='\\')))
{
struct hostent *he;
char ip[32], *s;
rc = 1;
// Replace '/' with '\' and verify that unc points to "//server/share".
for (s = mp->mnt_fsname; *s; ++s)
if (*s == '/') *s = '\\';
// get server IP
s = strrchr(mp->mnt_fsname, '\\');
if (s == mp->mnt_fsname+1) goto report_error;
*s = 0;
he = gethostbyname(mp->mnt_fsname+2);
*s = '\\';
if (!he) goto report_error;
// Insert ip=... option into string flags. (NOTE: Add IPv6 support.)
sprintf(ip, "ip=%d.%d.%d.%d", he->h_addr[0], he->h_addr[1],
he->h_addr[2], he->h_addr[3]);
parse_mount_options(ip, &filteropts);
// compose new unc '\\server-ip\share'
s = xasprintf("\\\\%s\\%s",ip+3,strchr(mp->mnt_fsname+2,'\\'));
if (ENABLE_FEATURE_CLEAN_UP) free(mp->mnt_fsname);
mp->mnt_fsname = s;
// lock is required
vfsflags |= MS_MANDLOCK;
mp->mnt_type = "cifs";
rc = mount_it_now(mp, vfsflags, filteropts);
goto report_error;
}
// Might this be an NFS filesystem?
if (ENABLE_FEATURE_MOUNT_NFS &&
@ -278,15 +321,12 @@ static int singlemount(struct mntent *mp, int ignore_busy)
{
if (nfsmount(mp->mnt_fsname, mp->mnt_dir, &vfsflags, &filteropts, 1)) {
bb_perror_msg("nfsmount failed");
goto report_error;
} else {
// Strangely enough, nfsmount() doesn't actually mount() anything.
mp->mnt_type = "nfs";
rc = mount_it_now(mp, vfsflags, filteropts);
if (ENABLE_FEATURE_CLEAN_UP) free(filteropts);
goto report_error;
}
goto report_error;
}
// Look at the file. (Not found isn't a failure for remount, or for
@ -344,8 +384,6 @@ static int singlemount(struct mntent *mp, int ignore_busy)
}
}
if (ENABLE_FEATURE_CLEAN_UP) free(filteropts);
// If mount failed, clean up loop file (if any).
if (ENABLE_FEATURE_MOUNT_LOOP && rc && loopFile) {
@ -355,7 +393,10 @@ static int singlemount(struct mntent *mp, int ignore_busy)
free(mp->mnt_fsname);
}
}
report_error:
if (ENABLE_FEATURE_CLEAN_UP) free(filteropts);
if (rc && errno == EBUSY && ignore_busy) rc = 0;
if (rc < 0)
bb_perror_msg("Mounting %s on %s failed", mp->mnt_fsname, mp->mnt_dir);