diff options
Diffstat (limited to 'print-tree.c')
| -rw-r--r-- | print-tree.c | 53 |
1 files changed, 48 insertions, 5 deletions
diff --git a/print-tree.c b/print-tree.c index 5af80e87..5927ed35 100644 --- a/print-tree.c +++ b/print-tree.c @@ -197,10 +197,16 @@ static void qgroup_flags_to_str(u64 flags, char *ret) void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk) { - int num_stripes = btrfs_chunk_num_stripes(eb, chunk); + u16 num_stripes = btrfs_chunk_num_stripes(eb, chunk); int i; + u32 chunk_item_size = btrfs_chunk_item_size(num_stripes); char chunk_flags_str[32] = {0}; + if ((unsigned long)chunk + chunk_item_size > eb->len) { + printf("\t\tchunk item invalid\n"); + return; + } + bg_flags_to_str(btrfs_chunk_type(eb, chunk), chunk_flags_str); printf("\t\tlength %llu owner %llu stripe_len %llu type %s\n", (unsigned long long)btrfs_chunk_length(eb, chunk), @@ -216,9 +222,21 @@ void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk) for (i = 0 ; i < num_stripes ; i++) { unsigned char dev_uuid[BTRFS_UUID_SIZE]; char str_dev_uuid[BTRFS_UUID_UNPARSED_SIZE]; + u64 uuid_offset; + u64 stripe_offset; + + uuid_offset = (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i); + stripe_offset = (unsigned long)btrfs_stripe_nr(chunk, i); + + if (uuid_offset < stripe_offset || + (uuid_offset + BTRFS_UUID_SIZE) > + (stripe_offset + sizeof(struct btrfs_stripe))) { + printf("\t\t\tstripe %d invalid\n", i); + break; + } read_extent_buffer(eb, dev_uuid, - (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i), + uuid_offset, BTRFS_UUID_SIZE); uuid_unparse(dev_uuid, str_dev_uuid); printf("\t\t\tstripe %d devid %llu offset %llu\n", i, @@ -318,7 +336,7 @@ static void print_file_extent_item(struct extent_buffer *eb, int slot, struct btrfs_file_extent_item *fi) { - int extent_type = btrfs_file_extent_type(eb, fi); + unsigned char extent_type = btrfs_file_extent_type(eb, fi); char compress_str[16]; compress_type_to_str(btrfs_file_extent_compression(eb, fi), @@ -938,13 +956,35 @@ static void print_dev_stats(struct extent_buffer *eb, } } +/* Caller must ensure sizeof(*ret) >= 14 "WRITTEN|RELOC" */ +static void header_flags_to_str(u64 flags, char *ret) +{ + int empty = 1; + + if (flags & BTRFS_HEADER_FLAG_WRITTEN) { + empty = 0; + strcpy(ret, "WRITTEN"); + } + if (flags & BTRFS_HEADER_FLAG_RELOC) { + if (!empty) + strcat(ret, "|"); + strcat(ret, "RELOC"); + } +} + void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *eb) { struct btrfs_item *item; struct btrfs_disk_key disk_key; + char flags_str[128]; u32 i; u32 nr; + u64 flags; + u8 backref_rev; + flags = btrfs_header_flags(eb) & ~BTRFS_BACKREF_REV_MASK; + backref_rev = btrfs_header_flags(eb) >> BTRFS_BACKREF_REV_SHIFT; + header_flags_to_str(flags, flags_str); nr = btrfs_header_nritems(eb); printf("leaf %llu items %d free space %d generation %llu owner %llu\n", @@ -952,6 +992,8 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *eb) btrfs_leaf_free_space(root, eb), (unsigned long long)btrfs_header_generation(eb), (unsigned long long)btrfs_header_owner(eb)); + printf("leaf %llu flags 0x%llx(%s) backref revision %d\n", + btrfs_header_bytenr(eb), flags, flags_str, backref_rev); print_uuids(eb); fflush(stdout); @@ -1255,7 +1297,7 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int fol (unsigned long long)btrfs_header_owner(eb)); print_uuids(eb); fflush(stdout); - size = root->nodesize; + size = root->fs_info->nodesize; for (i = 0; i < nr; i++) { u64 blocknr = btrfs_node_blockptr(eb, i); btrfs_node_key(eb, &disk_key, i); @@ -1272,7 +1314,8 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int fol return; for (i = 0; i < nr; i++) { - next = read_tree_block(root, btrfs_node_blockptr(eb, i), size, + next = read_tree_block(root->fs_info, + btrfs_node_blockptr(eb, i), size, btrfs_node_ptr_generation(eb, i)); if (!extent_buffer_uptodate(next)) { fprintf(stderr, "failed to read %llu in tree %llu\n", |