| /* |
| * 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 void 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 */ |
| if (ext2fs_read_bitmaps(fs)) |
| return; |
| |
| retval = ext2fs_read_inode(fs, from_ino, &inode); |
| if (retval) { |
| com_err("ext2fs_read_inode", retval, "%s", |
| _("in move_quota_inode")); |
| return; |
| } |
| |
| 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; |
| } |
| |
| /* unlink the old inode */ |
| quota_get_qf_name(qtype, QFMT_VFS_V1, qf_name); |
| ext2fs_unlink(fs, EXT2_ROOT_INO, qf_name, from_ino, 0); |
| 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); |
| } |
| |
| 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.ino = *quota_sb_inump(sb, qtype); |
| quota_ino = quota_type2inum(qtype, fs->super); |
| if (pctx.ino && (pctx.ino != quota_ino) && |
| fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) { |
| move_quota_inode(fs, pctx.ino, quota_ino, qtype); |
| *quota_sb_inump(sb, qtype) = quota_ino; |
| } |
| } |
| |
| return; |
| } |