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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:49:25 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:49:25 +0000
commit464df1d5e5ab1322e2dd0a7796939fff1aeefa9a (patch)
tree6a403684e0978f0287d7f0ec0e5aab1fd31a59e1 /e2fsck/quota.c
parentInitial commit. (diff)
downloade2fsprogs-464df1d5e5ab1322e2dd0a7796939fff1aeefa9a.tar.xz
e2fsprogs-464df1d5e5ab1322e2dd0a7796939fff1aeefa9a.zip
Adding upstream version 1.47.0.upstream/1.47.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'e2fsck/quota.c')
-rw-r--r--e2fsck/quota.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/e2fsck/quota.c b/e2fsck/quota.c
new file mode 100644
index 0000000..f9b68c9
--- /dev/null
+++ b/e2fsck/quota.c
@@ -0,0 +1,127 @@
+/*
+ * quota.c --- code for handling ext4 quota inodes
+ *
+ */
+
+#include "config.h"
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/param.h>
+#include <sys/mount.h>
+#define MNT_FL (MS_MGC_VAL | MS_RDONLY)
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#include "e2fsck.h"
+#include "problem.h"
+
+static errcode_t move_quota_inode(ext2_filsys fs, ext2_ino_t from_ino,
+ ext2_ino_t to_ino, enum quota_type qtype)
+{
+ struct ext2_inode inode;
+ errcode_t retval;
+ char qf_name[QUOTA_NAME_LEN];
+
+ /* We need the inode bitmap to be loaded */
+ retval = ext2fs_read_bitmaps(fs);
+ if (retval) {
+ com_err("ext2fs_read_bitmaps", retval, "%s",
+ _("in move_quota_inode"));
+ return retval;
+ }
+
+ retval = ext2fs_read_inode(fs, from_ino, &inode);
+ if (retval) {
+ com_err("ext2fs_read_inode", retval, "%s",
+ _("in move_quota_inode"));
+ return retval;
+ }
+
+ inode.i_links_count = 1;
+ inode.i_mode = LINUX_S_IFREG | 0600;
+ inode.i_flags = EXT2_IMMUTABLE_FL;
+ if (ext2fs_has_feature_extents(fs->super))
+ inode.i_flags |= EXT4_EXTENTS_FL;
+
+ retval = ext2fs_write_new_inode(fs, to_ino, &inode);
+ if (retval) {
+ com_err("ext2fs_write_new_inode", retval, "%s",
+ _("in move_quota_inode"));
+ return retval;
+ }
+
+ /* unlink the old inode */
+ quota_get_qf_name(qtype, QFMT_VFS_V1, qf_name);
+ retval = ext2fs_unlink(fs, EXT2_ROOT_INO, qf_name, from_ino, 0);
+ if (retval) {
+ com_err("ext2fs_unlink", retval, "%s",
+ _("in move_quota_inode"));
+ return retval;
+ }
+ ext2fs_inode_alloc_stats(fs, from_ino, -1);
+ /* Clear out the original inode in the inode-table block. */
+ memset(&inode, 0, sizeof(struct ext2_inode));
+ ext2fs_write_inode(fs, from_ino, &inode);
+ return 0;
+}
+
+void e2fsck_hide_quota(e2fsck_t ctx)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ struct problem_context pctx;
+ ext2_filsys fs = ctx->fs;
+ enum quota_type qtype;
+ ext2_ino_t quota_ino;
+
+ clear_problem_context(&pctx);
+
+ if ((ctx->options & E2F_OPT_READONLY) ||
+ !ext2fs_has_feature_quota(sb))
+ return;
+
+ for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
+ pctx.dir = 2; /* This is a guess, but it's a good one */
+ pctx.ino = *quota_sb_inump(sb, qtype);
+ pctx.num = qtype;
+ quota_ino = quota_type2inum(qtype, fs->super);
+ if (pctx.ino && (pctx.ino != quota_ino) &&
+ fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) {
+ if (move_quota_inode(fs, pctx.ino, quota_ino, qtype))
+ continue;
+ *quota_sb_inump(sb, qtype) = quota_ino;
+ ext2fs_mark_super_dirty(fs);
+ }
+ }
+
+ return;
+}
+
+void e2fsck_validate_quota_inodes(e2fsck_t ctx)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ struct problem_context pctx;
+ ext2_filsys fs = ctx->fs;
+ enum quota_type qtype;
+
+ clear_problem_context(&pctx);
+
+ for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
+ pctx.ino = *quota_sb_inump(sb, qtype);
+ pctx.num = qtype;
+ if (pctx.ino &&
+ ((pctx.ino == EXT2_BAD_INO) ||
+ (pctx.ino == EXT2_ROOT_INO) ||
+ (pctx.ino == EXT2_BOOT_LOADER_INO) ||
+ (pctx.ino == EXT2_UNDEL_DIR_INO) ||
+ (pctx.ino == EXT2_RESIZE_INO) ||
+ (pctx.ino == EXT2_JOURNAL_INO) ||
+ (pctx.ino == EXT2_EXCLUDE_INO) ||
+ (pctx.ino == EXT4_REPLICA_INO) ||
+ (pctx.ino > fs->super->s_inodes_count)) &&
+ fix_problem(ctx, PR_0_INVALID_QUOTA_INO, &pctx)) {
+ *quota_sb_inump(sb, qtype) = 0;
+ ext2fs_mark_super_dirty(fs);
+ }
+ }
+}