diff options
Diffstat (limited to 'util-linux')
| -rw-r--r-- | util-linux/Config.in | 10 | ||||
| -rw-r--r-- | util-linux/mount.c | 55 |
2 files changed, 50 insertions, 15 deletions
diff --git a/util-linux/Config.in b/util-linux/Config.in index c910813..107382f 100644 --- a/util-linux/Config.in +++ b/util-linux/Config.in @@ -360,6 +360,16 @@ config MOUNT NFS filesystems. Most people using BusyBox will also want to enable the 'mount' utility. +config FEATURE_MOUNT_HELPERS + bool "Support mount helpers" + default n + depends on MOUNT + help + Enable mounting of virtual file systems via external helpers. + E.g. mount obexfs#-b00.11.22.33.44.55 /mnt will in effect call + obexfs -b00.11.22.33.44.55 /mnt + The idea is to use such virtual filesystems in /etc/fstab + config FEATURE_MOUNT_NFS bool "Support mounting NFS file systems" default n diff --git a/util-linux/mount.c b/util-linux/mount.c index 91f09e1..d391a26 100644 --- a/util-linux/mount.c +++ b/util-linux/mount.c @@ -18,8 +18,8 @@ mount_it_now() does the actual mount. */ -#include "libbb.h" #include <mntent.h> +#include "libbb.h" /* Needed for nfs support only... */ #include <syslog.h> @@ -30,20 +30,23 @@ #include <rpc/pmap_prot.h> #include <rpc/pmap_clnt.h> +#ifndef MS_SILENT +#define MS_SILENT (1 << 15) +#endif #if defined(__dietlibc__) /* 16.12.2006, Sampo Kellomaki (sampo@iki.fi) * dietlibc-0.30 does not have implementation of getmntent_r() */ -/* OTOH: why we use getmntent_r instead of getmntent? TODO... */ struct mntent *getmntent_r(FILE* stream, struct mntent* result, char* buffer, int bufsize) { - /* *** XXX FIXME WARNING: This hack is NOT thread safe. --Sampo */ struct mntent* ment = getmntent(stream); memcpy(result, ment, sizeof(struct mntent)); return result; } #endif +#define getmntent_buf bb_common_bufsiz1 + // Not real flags, but we want to be able to check for this. enum { @@ -186,11 +189,11 @@ static int parse_mount_options(char *options, char **unrecognized) strcpy((*unrecognized)+i, options); } - // Advance to next option, or finish - if (comma) { - *comma = ','; - options = ++comma; - } else break; + if (!comma) + break; + // Advance to next option + *comma = ','; + options = ++comma; } return flags; @@ -262,8 +265,9 @@ static int mount_it_now(struct mntent *mp, int vfsflags, char *filteropts) vfsflags, filteropts); if (!rc || (vfsflags&MS_RDONLY) || (errno!=EACCES && errno!=EROFS)) break; - bb_error_msg("%s is write-protected, mounting read-only", - mp->mnt_fsname); + if (!(vfsflags & MS_SILENT)) + bb_error_msg("%s is write-protected, mounting read-only", + mp->mnt_fsname); vfsflags |= MS_RDONLY; } @@ -1399,6 +1403,27 @@ static int singlemount(struct mntent *mp, int ignore_busy) if (mp->mnt_type && strcmp(mp->mnt_type,"auto") == 0) mp->mnt_type = 0; + // Might this be a virtual filesystem? + + if (ENABLE_FEATURE_MOUNT_HELPERS + && (strchr(mp->mnt_fsname,'#')) + ) { + char *s, *p, *args[35]; + int n = 0; + for (s = p = mp->mnt_fsname; *s && n < 35-3; ++s) { + if (s[0] == '#' && s[1] != '#') { + *s = '\0'; + args[n++] = p; + p = s + 1; + } + } + args[n++] = p; + args[n++] = mp->mnt_dir; + args[n] = NULL; + rc = wait4pid(xspawn(args)); + goto report_error; + } + // Might this be an CIFS filesystem? if (ENABLE_FEATURE_MOUNT_CIFS @@ -1593,8 +1618,8 @@ int mount_main(int argc, char **argv) if (!mountTable) bb_error_msg_and_die("no %s", bb_path_mtab_file); - while (getmntent_r(mountTable, mtpair, bb_common_bufsiz1, - sizeof(bb_common_bufsiz1))) + while (getmntent_r(mountTable, &mtpair[0], getmntent_buf, + sizeof(getmntent_buf))) { // Don't show rootfs. FIXME: why?? // util-linux 2.12a happily shows rootfs... @@ -1657,9 +1682,9 @@ int mount_main(int argc, char **argv) // Get next fstab entry - if (!getmntent_r(fstab, mtcur, bb_common_bufsiz1 - + (mtcur==mtpair ? sizeof(bb_common_bufsiz1)/2 : 0), - sizeof(bb_common_bufsiz1)/2)) + if (!getmntent_r(fstab, mtcur, getmntent_buf + + (mtcur==mtpair ? sizeof(getmntent_buf)/2 : 0), + sizeof(getmntent_buf)/2)) { // Were we looking for something specific? |