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path: root/fs/xfs/libxfs/xfs_inode_fork.c
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Diffstat (limited to 'fs/xfs/libxfs/xfs_inode_fork.c')
-rw-r--r--fs/xfs/libxfs/xfs_inode_fork.c152
1 files changed, 45 insertions, 107 deletions
diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c
index c79a1616b79d..866d2861c625 100644
--- a/fs/xfs/libxfs/xfs_inode_fork.c
+++ b/fs/xfs/libxfs/xfs_inode_fork.c
@@ -35,6 +35,8 @@
#include "xfs_da_format.h"
#include "xfs_da_btree.h"
#include "xfs_dir2_priv.h"
+#include "xfs_attr_leaf.h"
+#include "xfs_shared.h"
kmem_zone_t *xfs_ifork_zone;
@@ -62,69 +64,11 @@ xfs_iformat_fork(
int error = 0;
xfs_fsize_t di_size;
- if (unlikely(be32_to_cpu(dip->di_nextents) +
- be16_to_cpu(dip->di_anextents) >
- be64_to_cpu(dip->di_nblocks))) {
- xfs_warn(ip->i_mount,
- "corrupt dinode %Lu, extent total = %d, nblocks = %Lu.",
- (unsigned long long)ip->i_ino,
- (int)(be32_to_cpu(dip->di_nextents) +
- be16_to_cpu(dip->di_anextents)),
- (unsigned long long)
- be64_to_cpu(dip->di_nblocks));
- XFS_CORRUPTION_ERROR("xfs_iformat(1)", XFS_ERRLEVEL_LOW,
- ip->i_mount, dip);
- return -EFSCORRUPTED;
- }
-
- if (unlikely(dip->di_forkoff > ip->i_mount->m_sb.sb_inodesize)) {
- xfs_warn(ip->i_mount, "corrupt dinode %Lu, forkoff = 0x%x.",
- (unsigned long long)ip->i_ino,
- dip->di_forkoff);
- XFS_CORRUPTION_ERROR("xfs_iformat(2)", XFS_ERRLEVEL_LOW,
- ip->i_mount, dip);
- return -EFSCORRUPTED;
- }
-
- if (unlikely((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) &&
- !ip->i_mount->m_rtdev_targp)) {
- xfs_warn(ip->i_mount,
- "corrupt dinode %Lu, has realtime flag set.",
- ip->i_ino);
- XFS_CORRUPTION_ERROR("xfs_iformat(realtime)",
- XFS_ERRLEVEL_LOW, ip->i_mount, dip);
- return -EFSCORRUPTED;
- }
-
- if (unlikely(xfs_is_reflink_inode(ip) && !S_ISREG(inode->i_mode))) {
- xfs_warn(ip->i_mount,
- "corrupt dinode %llu, wrong file type for reflink.",
- ip->i_ino);
- XFS_CORRUPTION_ERROR("xfs_iformat(reflink)",
- XFS_ERRLEVEL_LOW, ip->i_mount, dip);
- return -EFSCORRUPTED;
- }
-
- if (unlikely(xfs_is_reflink_inode(ip) &&
- (ip->i_d.di_flags & XFS_DIFLAG_REALTIME))) {
- xfs_warn(ip->i_mount,
- "corrupt dinode %llu, has reflink+realtime flag set.",
- ip->i_ino);
- XFS_CORRUPTION_ERROR("xfs_iformat(reflink)",
- XFS_ERRLEVEL_LOW, ip->i_mount, dip);
- return -EFSCORRUPTED;
- }
-
switch (inode->i_mode & S_IFMT) {
case S_IFIFO:
case S_IFCHR:
case S_IFBLK:
case S_IFSOCK:
- if (unlikely(dip->di_format != XFS_DINODE_FMT_DEV)) {
- XFS_CORRUPTION_ERROR("xfs_iformat(3)", XFS_ERRLEVEL_LOW,
- ip->i_mount, dip);
- return -EFSCORRUPTED;
- }
ip->i_d.di_size = 0;
inode->i_rdev = xfs_to_linux_dev_t(xfs_dinode_get_rdev(dip));
break;
@@ -134,32 +78,7 @@ xfs_iformat_fork(
case S_IFDIR:
switch (dip->di_format) {
case XFS_DINODE_FMT_LOCAL:
- /*
- * no local regular files yet
- */
- if (unlikely(S_ISREG(be16_to_cpu(dip->di_mode)))) {
- xfs_warn(ip->i_mount,
- "corrupt inode %Lu (local format for regular file).",
- (unsigned long long) ip->i_ino);
- XFS_CORRUPTION_ERROR("xfs_iformat(4)",
- XFS_ERRLEVEL_LOW,
- ip->i_mount, dip);
- return -EFSCORRUPTED;
- }
-
di_size = be64_to_cpu(dip->di_size);
- if (unlikely(di_size < 0 ||
- di_size > XFS_DFORK_DSIZE(dip, ip->i_mount))) {
- xfs_warn(ip->i_mount,
- "corrupt inode %Lu (bad size %Ld for local inode).",
- (unsigned long long) ip->i_ino,
- (long long) di_size);
- XFS_CORRUPTION_ERROR("xfs_iformat(5)",
- XFS_ERRLEVEL_LOW,
- ip->i_mount, dip);
- return -EFSCORRUPTED;
- }
-
size = (int)di_size;
error = xfs_iformat_local(ip, dip, XFS_DATA_FORK, size);
break;
@@ -170,28 +89,16 @@ xfs_iformat_fork(
error = xfs_iformat_btree(ip, dip, XFS_DATA_FORK);
break;
default:
- XFS_ERROR_REPORT("xfs_iformat(6)", XFS_ERRLEVEL_LOW,
- ip->i_mount);
return -EFSCORRUPTED;
}
break;
default:
- XFS_ERROR_REPORT("xfs_iformat(7)", XFS_ERRLEVEL_LOW, ip->i_mount);
return -EFSCORRUPTED;
}
if (error)
return error;
- /* Check inline dir contents. */
- if (S_ISDIR(inode->i_mode) && dip->di_format == XFS_DINODE_FMT_LOCAL) {
- error = xfs_dir2_sf_verify(ip);
- if (error) {
- xfs_idestroy_fork(ip, XFS_DATA_FORK);
- return error;
- }
- }
-
if (xfs_is_reflink_inode(ip)) {
ASSERT(ip->i_cowfp == NULL);
xfs_ifork_init_cow(ip);
@@ -208,18 +115,6 @@ xfs_iformat_fork(
atp = (xfs_attr_shortform_t *)XFS_DFORK_APTR(dip);
size = be16_to_cpu(atp->hdr.totsize);
- if (unlikely(size < sizeof(struct xfs_attr_sf_hdr))) {
- xfs_warn(ip->i_mount,
- "corrupt inode %Lu (bad attr fork size %Ld).",
- (unsigned long long) ip->i_ino,
- (long long) size);
- XFS_CORRUPTION_ERROR("xfs_iformat(8)",
- XFS_ERRLEVEL_LOW,
- ip->i_mount, dip);
- error = -EFSCORRUPTED;
- break;
- }
-
error = xfs_iformat_local(ip, dip, XFS_ATTR_FORK, size);
break;
case XFS_DINODE_FMT_EXTENTS:
@@ -403,6 +298,7 @@ xfs_iformat_btree(
*/
if (unlikely(XFS_IFORK_NEXTENTS(ip, whichfork) <=
XFS_IFORK_MAXEXT(ip, whichfork) ||
+ nrecs == 0 ||
XFS_BMDR_SPACE_CALC(nrecs) >
XFS_DFORK_SIZE(dip, mp, whichfork) ||
XFS_IFORK_NEXTENTS(ip, whichfork) > ip->i_d.di_nblocks) ||
@@ -827,3 +723,45 @@ xfs_ifork_init_cow(
ip->i_cformat = XFS_DINODE_FMT_EXTENTS;
ip->i_cnextents = 0;
}
+
+/* Default fork content verifiers. */
+struct xfs_ifork_ops xfs_default_ifork_ops = {
+ .verify_attr = xfs_attr_shortform_verify,
+ .verify_dir = xfs_dir2_sf_verify,
+ .verify_symlink = xfs_symlink_shortform_verify,
+};
+
+/* Verify the inline contents of the data fork of an inode. */
+xfs_failaddr_t
+xfs_ifork_verify_data(
+ struct xfs_inode *ip,
+ struct xfs_ifork_ops *ops)
+{
+ /* Non-local data fork, we're done. */
+ if (ip->i_d.di_format != XFS_DINODE_FMT_LOCAL)
+ return NULL;
+
+ /* Check the inline data fork if there is one. */
+ switch (VFS_I(ip)->i_mode & S_IFMT) {
+ case S_IFDIR:
+ return ops->verify_dir(ip);
+ case S_IFLNK:
+ return ops->verify_symlink(ip);
+ default:
+ return NULL;
+ }
+}
+
+/* Verify the inline contents of the attr fork of an inode. */
+xfs_failaddr_t
+xfs_ifork_verify_attr(
+ struct xfs_inode *ip,
+ struct xfs_ifork_ops *ops)
+{
+ /* There has to be an attr fork allocated if aformat is local. */
+ if (ip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)
+ return NULL;
+ if (!XFS_IFORK_PTR(ip, XFS_ATTR_FORK))
+ return __this_address;
+ return ops->verify_attr(ip);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-16 13:05:16 +0000