diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/bindfs.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/bindfs.c b/src/bindfs.c index f6cd6c6..3a020f3 100644 --- a/src/bindfs.c +++ b/src/bindfs.c @@ -164,6 +164,9 @@ static struct Settings { int ctime_from_mtime; + uid_t uid_offset; + gid_t gid_offset; + } settings; @@ -316,6 +319,12 @@ static int getattr_common(const char *procpath, struct stat *stbuf) stbuf->st_uid = usermap_get_uid_or_default(settings.usermap, stbuf->st_uid, stbuf->st_uid); stbuf->st_gid = usermap_get_gid_or_default(settings.usermap, stbuf->st_gid, stbuf->st_gid); + if (settings.uid_offset > 0) + stbuf->st_uid +=settings.uid_offset; + + if (settings.gid_offset > 0) + stbuf->st_gid +=settings.gid_offset; + /* Report user-defined owner/group if specified */ if (settings.new_uid != -1) stbuf->st_uid = settings.new_uid; @@ -1292,6 +1301,8 @@ static void print_usage(const char *progname) " -M --mirror-only=... Like --mirror but disallow access for\n" " all other users.\n" " --map=user1/user2:... Let user2 see files of user1 as his own.\n" + " --uid-offset=... Set file uid = uid + offset.\n" + " --gid-offset=... Set file gid = gid + offset.\n" "\n" "Permission bits:\n" " -p --perms=... Specify permissions, similar to chmod\n" @@ -1732,6 +1743,8 @@ int main(int argc, char *argv[]) char *resolved_symlink_deletion; int no_allow_other; int multithreaded; + char *uid_offset; + char *gid_offset; } od; #define OPT2(one, two, key) \ @@ -1794,6 +1807,9 @@ int main(int argc, char *argv[]) OPT2("--realistic-permissions", "realistic-permissions", OPTKEY_REALISTIC_PERMISSIONS), OPT2("--ctime-from-mtime", "ctime-from-mtime", OPTKEY_CTIME_FROM_MTIME), OPT_OFFSET2("--multithreaded", "multithreaded", multithreaded, -1), + + OPT_OFFSET2("--uid-offset=%s", "uid-offset=%s", uid_offset, 0), + OPT_OFFSET2("--gid-offset=%s", "gid-offset=%s", gid_offset, 0), FUSE_OPT_END }; @@ -1834,6 +1850,9 @@ int main(int argc, char *argv[]) settings.resolved_symlink_deletion_policy = RESOLVED_SYMLINK_DELETION_SYMLINK_ONLY; settings.realistic_permissions = 0; settings.ctime_from_mtime = 0; + settings.uid_offset = 0; + settings.gid_offset = 0; + atexit(&atexit_func); /* Parse options */ @@ -1910,6 +1929,28 @@ int main(int argc, char *argv[]) } } + if (od.uid_offset > 0) { + if (getuid() != 0) { + fprintf(stderr, "Error: You need to be root to use --uid-offset !\n"); + return 1; + } + if (!user_uid(od.uid_offset, &settings.uid_offset)) { + fprintf(stderr, "Not a valid uid offset: %s\n", od.uid_offset); + return 1; + } + } + + if (od.gid_offset > 0) { + if (getuid() != 0) { + fprintf(stderr, "Error: You need to be root to use --gid-offset !\n"); + return 1; + } + if (!group_gid(od.gid_offset, &settings.gid_offset)) { + fprintf(stderr, "Not a valid gid offset: %s\n", od.gid_offset); + return 1; + } + } + /* Parse user and group for new creates */ if (od.create_for_user) { if (getuid() != 0) { |