projects / thirdparty / xfsprogs-dev.git / blame
| Commit | Line | Data |
|---|---|---|
| 3cafd875 DC |
1 | /* |
| 2 | * Copyright (c) 2013 Red Hat, Inc. | |
| 3 | * All Rights Reserved. | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or | |
| 6 | * modify it under the terms of the GNU General Public License as | |
| 7 | * published by the Free Software Foundation. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it would be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License | |
| 15 | * along with this program; if not, write the Free Software Foundation, | |
| 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 17 | */ | |
| 18 | ||
| 6b803e5a | 19 | #include "libxfs.h" |
| 3cafd875 DC |
20 | #include "type.h" |
| 21 | #include "faddr.h" | |
| 22 | #include "fprint.h" | |
| 23 | #include "field.h" | |
| 24 | #include "bit.h" | |
| 25 | #include "init.h" | |
| 26 | ||
| 27 | ||
| 28 | /* | |
| 29 | * XXX: no idea how to handle multiple contiguous block symlinks here. | |
| 30 | */ | |
| 31 | static int | |
| 32 | symlink_count( | |
| 33 | void *obj, | |
| 34 | int startoff) | |
| 35 | { | |
| 36 | struct xfs_dsymlink_hdr *hdr = obj; | |
| 37 | ||
| 38 | ASSERT(startoff == 0); | |
| 39 | ||
| 40 | if (hdr->sl_magic != cpu_to_be32(XFS_SYMLINK_MAGIC)) | |
| 41 | return 0; | |
| 42 | if (be32_to_cpu(hdr->sl_bytes) + sizeof(*hdr) > mp->m_sb.sb_blocksize) | |
| 43 | return mp->m_sb.sb_blocksize - sizeof(*hdr); | |
| 44 | return be32_to_cpu(hdr->sl_bytes); | |
| 45 | } | |
| 46 | ||
| 47 | int | |
| 48 | symlink_size( | |
| 49 | void *obj, | |
| 50 | int startoff, | |
| 51 | int idx) | |
| 52 | { | |
| 53 | struct xfs_dsymlink_hdr *hdr = obj; | |
| 54 | ||
| 55 | ASSERT(startoff == 0); | |
| 56 | if (hdr->sl_magic != cpu_to_be32(XFS_SYMLINK_MAGIC)) | |
| 57 | return 0; | |
| 58 | return be32_to_cpu(hdr->sl_bytes) + sizeof(*hdr); | |
| 59 | } | |
| 60 | ||
| 61 | const struct field symlink_crc_hfld[] = { | |
| 62 | { "", FLDT_SYMLINK_CRC, OI(0), C1, 0, TYP_NONE }, | |
| 63 | { NULL } | |
| 64 | }; | |
| 65 | ||
| 66 | #define OFF(f) bitize(offsetof(struct xfs_dsymlink_hdr, sl_ ## f)) | |
| 67 | #define SZOF(f) bitize(sizeof(struct xfs_dsymlink_hdr)) | |
| 68 | const struct field symlink_crc_flds[] = { | |
| 69 | { "magic", FLDT_UINT32X, OI(OFF(magic)), C1, 0, TYP_NONE }, | |
| 70 | { "offset", FLDT_UINT32D, OI(OFF(offset)), C1, 0, TYP_NONE }, | |
| 71 | { "bytes", FLDT_UINT32D, OI(OFF(bytes)), C1, 0, TYP_NONE }, | |
| 0522f1cc | 72 | { "crc", FLDT_CRC, OI(OFF(crc)), C1, 0, TYP_NONE }, |
| 3cafd875 DC |
73 | { "uuid", FLDT_UUID, OI(OFF(uuid)), C1, 0, TYP_NONE }, |
| 74 | { "owner", FLDT_INO, OI(OFF(owner)), C1, 0, TYP_NONE }, | |
| 75 | { "bno", FLDT_DFSBNO, OI(OFF(blkno)), C1, 0, TYP_BMAPBTD }, | |
| 76 | { "lsn", FLDT_UINT64X, OI(OFF(lsn)), C1, 0, TYP_NONE }, | |
| 77 | { "data", FLDT_CHARNS, OI(bitize(sizeof(struct xfs_dsymlink_hdr))), | |
| 78 | symlink_count, FLD_COUNT, TYP_NONE }, | |
| 79 | { NULL } | |
| 80 | }; |