# include <linux/fs.h>
# include <linux/falloc.h>
# include <linux/xattr.h>
-# define FUSE_PLATFORM_OPTS ",nonempty,big_writes"
+# define FUSE_PLATFORM_OPTS ",big_writes"
# ifdef HAVE_SYS_ACL_H
# define TRANSLATE_LINUX_ACLS
# endif
typedef struct {
u_int32_t a_version;
+#if __GNUC_PREREQ (4, 8)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
acl_ea_entry a_entries[0];
+#if __GNUC_PREREQ (4, 8)
+#pragma GCC diagnostic pop
+#endif
} acl_ea_header;
static inline size_t acl_ea_size(int count)
int no_default_opts;
int panic_on_error;
int minixdf;
+ int fakeroot;
int alloc_all_blocks;
+ int norecovery;
FILE *err_fp;
unsigned int next_generation;
};
static int check_inum_access(ext2_filsys fs, ext2_ino_t ino, mode_t mask)
{
struct fuse_context *ctxt = fuse_get_context();
+ struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
struct ext2_inode inode;
mode_t perms;
errcode_t err;
dbg_printf("access ino=%d mask=e%s%s%s perms=0%o fuid=%d fgid=%d "
"uid=%d gid=%d\n", ino,
(mask & R_OK ? "r" : ""), (mask & W_OK ? "w" : ""),
- (mask & X_OK ? "x" : ""), perms, inode.i_uid, inode.i_gid,
- ctxt->uid, ctxt->gid);
+ (mask & X_OK ? "x" : ""), perms, inode_uid(inode),
+ inode_gid(inode), ctxt->uid, ctxt->gid);
/* existence check */
if (mask == 0)
return -EACCES;
/* Figure out what root's allowed to do */
- if (ctxt->uid == 0) {
+ if (ff->fakeroot || ctxt->uid == 0) {
/* Non-file access always ok */
if (!LINUX_S_ISREG(inode.i_mode))
return 0;
}
/* allow owner, if perms match */
- if (inode.i_uid == ctxt->uid) {
+ if (inode_uid(inode) == ctxt->uid) {
if ((mask & (perms >> 6)) == mask)
return 0;
return -EACCES;
}
/* allow group, if perms match */
- if (inode.i_gid == ctxt->gid) {
+ if (inode_gid(inode) == ctxt->gid) {
if ((mask & (perms >> 3)) == mask)
return 0;
return -EACCES;
return ff;
}
-static blkcnt_t blocks_from_inode(ext2_filsys fs,
- struct ext2_inode_large *inode)
-{
- blkcnt_t b;
-
- b = inode->i_blocks;
- if (ext2fs_has_feature_huge_file(fs->super))
- b += ((long long) inode->osd2.linux2.l_i_blocks_hi) << 32;
-
- if (!ext2fs_has_feature_huge_file(fs->super) ||
- !(inode->i_flags & EXT4_HUGE_FILE_FL))
- b *= fs->blocksize / 512;
- b *= EXT2FS_CLUSTER_RATIO(fs);
-
- return b;
-}
-
static int stat_inode(ext2_filsys fs, ext2_ino_t ino, struct stat *statbuf)
{
struct ext2_inode_large inode;
statbuf->st_ino = ino;
statbuf->st_mode = inode.i_mode;
statbuf->st_nlink = inode.i_links_count;
- statbuf->st_uid = inode.i_uid;
- statbuf->st_gid = inode.i_gid;
+ statbuf->st_uid = inode_uid(inode);
+ statbuf->st_gid = inode_gid(inode);
statbuf->st_size = EXT2_I_SIZE(&inode);
statbuf->st_blksize = fs->blocksize;
- statbuf->st_blocks = blocks_from_inode(fs, &inode);
+ statbuf->st_blocks = ext2fs_get_stat_i_blocks(fs,
+ (struct ext2_inode *)&inode);
EXT4_INODE_GET_XTIME(i_atime, &tv, &inode);
statbuf->st_atime = tv.tv_sec;
EXT4_INODE_GET_XTIME(i_mtime, &tv, &inode);
len--;
if (inode.i_size < len)
len = inode.i_size;
- if (ext2fs_inode_data_blocks2(fs, &inode) ||
- (inode.i_flags & EXT4_INLINE_DATA_FL)) {
+ if (ext2fs_is_fast_symlink(&inode))
+ memcpy(buf, (char *)inode.i_block, len);
+ else {
/* big/inline symlink */
err = ext2fs_file_open(fs, ino, 0, &file);
ret = translate_error(fs, ino, err);
goto out;
}
- } else
- /* inline symlink */
- memcpy(buf, (char *)inode.i_block, len);
+ }
buf[len] = 0;
if (fs_writeable(fs)) {
inode.i_extra_isize = sizeof(struct ext2_inode_large) -
EXT2_GOOD_OLD_INODE_SIZE;
inode.i_uid = ctxt->uid;
+ ext2fs_set_i_uid_high(inode, ctxt->uid >> 16);
inode.i_gid = ctxt->gid;
+ ext2fs_set_i_gid_high(inode, ctxt->gid >> 16);
err = ext2fs_write_new_inode(fs, child, (struct ext2_inode *)&inode);
if (err) {
}
inode.i_uid = ctxt->uid;
+ ext2fs_set_i_uid_high(inode, ctxt->uid >> 16);
inode.i_gid = ctxt->gid;
+ ext2fs_set_i_gid_high(inode, ctxt->gid >> 16);
inode.i_mode = LINUX_S_IFDIR | (mode & ~(S_ISUID | fs->umask)) |
parent_sgid;
inode.i_generation = ff->next_generation++;
}
inode.i_uid = ctxt->uid;
+ ext2fs_set_i_uid_high(inode, ctxt->uid >> 16);
inode.i_gid = ctxt->gid;
+ ext2fs_set_i_gid_high(inode, ctxt->gid >> 16);
inode.i_generation = ff->next_generation++;
err = ext2fs_write_inode_full(fs, child, (struct ext2_inode *)&inode,
goto out;
}
- if (ctxt->uid != 0 && ctxt->uid != inode.i_uid) {
+ if (!ff->fakeroot && ctxt->uid != 0 && ctxt->uid != inode_uid(inode)) {
ret = -EPERM;
goto out;
}
* of the user's groups, but FUSE only tells us about the primary
* group.
*/
- if (ctxt->uid != 0 && ctxt->gid != inode.i_gid)
+ if (!ff->fakeroot && ctxt->uid != 0 && ctxt->gid != inode_gid(inode))
mode &= ~S_ISGID;
inode.i_mode &= ~0xFFF;
/* FUSE seems to feed us ~0 to mean "don't change" */
if (owner != (uid_t) ~0) {
/* Only root gets to change UID. */
- if (ctxt->uid != 0 &&
- !(inode.i_uid == ctxt->uid && owner == ctxt->uid)) {
+ if (!ff->fakeroot && ctxt->uid != 0 &&
+ !(inode_uid(inode) == ctxt->uid && owner == ctxt->uid)) {
ret = -EPERM;
goto out;
}
inode.i_uid = owner;
+ ext2fs_set_i_uid_high(inode, owner >> 16);
}
if (group != (gid_t) ~0) {
/* Only root or the owner get to change GID. */
- if (ctxt->uid != 0 && inode.i_uid != ctxt->uid) {
+ if (!ff->fakeroot && ctxt->uid != 0 &&
+ inode_uid(inode) != ctxt->uid) {
ret = -EPERM;
goto out;
}
/* XXX: We /should/ check group membership but FUSE */
inode.i_gid = group;
+ ext2fs_set_i_gid_high(inode, group >> 16);
}
ret = update_ctime(fs, ino, &inode);
overhead = 0;
else
overhead = fs->desc_blocks +
- fs->group_desc_count *
+ (blk64_t)fs->group_desc_count *
(fs->inode_blocks_per_group + 2);
reserved = ext2fs_r_blocks_count(fs->super);
if (!reserved)
goto out3;
}
- err = ext2fs_xattrs_write(h);
- if (err) {
- ret = translate_error(fs, ino, err);
- goto out3;
- }
-
ret = update_ctime(fs, ino, NULL);
out3:
if (cvalue != value)
goto out2;
}
- err = ext2fs_xattrs_write(h);
- if (err) {
- ret = translate_error(fs, ino, err);
- goto out2;
- }
-
ret = update_ctime(fs, ino, NULL);
out2:
err = ext2fs_xattrs_close(&h);
inode.i_extra_isize = sizeof(struct ext2_inode_large) -
EXT2_GOOD_OLD_INODE_SIZE;
inode.i_uid = ctxt->uid;
+ ext2fs_set_i_uid_high(inode, ctxt->uid >> 16);
inode.i_gid = ctxt->gid;
+ ext2fs_set_i_gid_high(inode, ctxt->gid >> 16);
if (ext2fs_has_feature_extents(fs->super)) {
ext2_extent_handle_t handle;
int ret;
__u32 flags = *(__u32 *)data;
struct fuse_context *ctxt = fuse_get_context();
+ struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
dbg_printf("%s: ino=%d\n", __func__, fh->ino);
if (err)
return translate_error(fs, fh->ino, err);
- if (ctxt->uid != 0 && inode.i_uid != ctxt->uid)
+ if (!ff->fakeroot && ctxt->uid != 0 && inode_uid(inode) != ctxt->uid)
return -EPERM;
if ((inode.i_flags ^ flags) & ~FUSE2FS_MODIFIABLE_IFLAGS)
int ret;
__u32 generation = *(__u32 *)data;
struct fuse_context *ctxt = fuse_get_context();
+ struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
dbg_printf("%s: ino=%d\n", __func__, fh->ino);
if (err)
return translate_error(fs, fh->ino, err);
- if (ctxt->uid != 0 && inode.i_uid != ctxt->uid)
+ if (!ff->fakeroot && ctxt->uid != 0 && inode_uid(inode) != ctxt->uid)
return -EPERM;
inode.i_generation = generation;
FUSE2FS_OPT("ro", ro, 1),
FUSE2FS_OPT("errors=panic", panic_on_error, 1),
FUSE2FS_OPT("minixdf", minixdf, 1),
+ FUSE2FS_OPT("fakeroot", fakeroot, 1),
FUSE2FS_OPT("fuse2fs_debug", debug, 1),
FUSE2FS_OPT("no_default_opts", no_default_opts, 1),
+ FUSE2FS_OPT("norecovery", norecovery, 1),
FUSE_OPT_KEY("-V", FUSE2FS_VERSION),
FUSE_OPT_KEY("--version", FUSE2FS_VERSION),
" -o ro read-only mount\n"
" -o errors=panic dump core on error\n"
" -o minixdf minix-style df\n"
+ " -o fakeroot pretend to be root for permission checks\n"
" -o no_default_opts do not include default fuse options\n"
+ " -o norecovery don't replay the journal (implies ro)\n"
" -o fuse2fs_debug enable fuse2fs debugging\n"
"\n",
outargs->argv[0]);
errcode_t err;
char *logfile;
char extra_args[BUFSIZ];
- int ret = 0, flags = EXT2_FLAG_64BITS | EXT2_FLAG_EXCLUSIVE;
+ int ret = 0;
+ int flags = EXT2_FLAG_64BITS | EXT2_FLAG_THREADS | EXT2_FLAG_EXCLUSIVE;
memset(&fctx, 0, sizeof(fctx));
fctx.magic = FUSE2FS_MAGIC;
exit(1);
}
+ if (fctx.norecovery)
+ fctx.ro = 1;
if (fctx.ro)
printf("%s", _("Mounting read-only.\n"));
fctx.err_fp = fopen(logfile, "a");
if (!fctx.err_fp) {
perror(logfile);
- goto out_nofs;
+ goto out;
}
} else
fctx.err_fp = stderr;
if (err) {
printf(_("%s: %s.\n"), fctx.device, error_message(err));
printf(_("Please run e2fsck -fy %s.\n"), fctx.device);
- goto out_nofs;
+ goto out;
}
fctx.fs = global_fs;
global_fs->priv_data = &fctx;
ret = 3;
- if (ext2fs_has_feature_ea_inode(global_fs->super)) {
- printf(_("%s: fuse2fs does not support ea_inode feature.\n"),
- fctx.device);
- goto out;
- }
if (ext2fs_has_feature_journal_needs_recovery(global_fs->super)) {
- if (!fctx.ro) {
+ if (fctx.norecovery) {
+ printf(_("%s: mounting read-only without "
+ "recovering journal\n"),
+ fctx.device);
+ } else if (!fctx.ro) {
printf(_("%s: recovering journal\n"), fctx.device);
err = ext2fs_run_ext3_journal(&global_fs);
if (err) {
/* Set up default fuse parameters */
snprintf(extra_args, BUFSIZ, "-okernel_cache,subtype=ext4,use_ino,"
"fsname=%s,attr_timeout=0" FUSE_PLATFORM_OPTS,
- argv[1]);
+ fctx.device);
if (fctx.no_default_opts == 0)
fuse_opt_add_arg(&args, extra_args);
+ if (fctx.fakeroot) {
+#ifdef HAVE_MOUNT_NODEV
+ fuse_opt_add_arg(&args,"-onodev");
+#endif
+#ifdef HAVE_MOUNT_NOSUID
+ fuse_opt_add_arg(&args,"-onosuid");
+#endif
+ }
+
if (fctx.debug) {
int i;
ret = 0;
out:
- err = ext2fs_close(global_fs);
- if (err)
- com_err(argv[0], err, "while closing fs");
- global_fs = NULL;
-out_nofs:
-
+ if (global_fs) {
+ err = ext2fs_close(global_fs);
+ if (err)
+ com_err(argv[0], err, "while closing fs");
+ global_fs = NULL;
+ }
return ret;
}
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff