| /* |
| * 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" |
| #include "quota/quotaio.h" |
| |
| static void move_quota_inode(ext2_filsys fs, ext2_ino_t from_ino, |
| ext2_ino_t to_ino, int 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 (fs->super->s_feature_incompat & |
| EXT3_FEATURE_INCOMPAT_EXTENTS) |
| 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; |
| |
| clear_problem_context(&pctx); |
| |
| if ((ctx->options & E2F_OPT_READONLY) || |
| !(sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_QUOTA)) |
| return; |
| |
| pctx.ino = sb->s_usr_quota_inum; |
| if (sb->s_usr_quota_inum && |
| (sb->s_usr_quota_inum != EXT4_USR_QUOTA_INO) && |
| fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) { |
| move_quota_inode(fs, sb->s_usr_quota_inum, EXT4_USR_QUOTA_INO, |
| USRQUOTA); |
| sb->s_usr_quota_inum = EXT4_USR_QUOTA_INO; |
| } |
| |
| pctx.ino = sb->s_grp_quota_inum; |
| if (sb->s_grp_quota_inum && |
| (sb->s_grp_quota_inum != EXT4_GRP_QUOTA_INO) && |
| fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) { |
| move_quota_inode(fs, sb->s_grp_quota_inum, EXT4_GRP_QUOTA_INO, |
| GRPQUOTA); |
| sb->s_grp_quota_inum = EXT4_GRP_QUOTA_INO; |
| } |
| |
| return; |
| } |