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-rw-r--r--include/fstree.h14
-rw-r--r--include/squashfs.h2
-rw-r--r--mkfs/meta.c70
-rw-r--r--unpack/tree_node_from_inode.c1
4 files changed, 31 insertions, 56 deletions
diff --git a/include/fstree.h b/include/fstree.h
index 27cb39d..6a29093 100644
--- a/include/fstree.h
+++ b/include/fstree.h
@@ -133,20 +133,6 @@ struct tree_node_t {
/* Inode number. Generated on the fly when writing inodes. */
uint32_t inode_num;
- /* SquashFS inode type used for this tree node.
-
- Generated on the fly when writing inodes. It can't be easily
- determined in advance since it depends also on the size of the
- node, which means for directories the size of the directory
- entries once written to disk.
-
- All code that actually processes tree nodes should use the mode
- field instead (mode & S_IFMT gives us the node type). It is stored
- here when generating inodes since we need it later on to generate
- directory entries.
- */
- int type;
-
/* Type specific data. Pointers are into payload area blow. */
union {
dir_info_t *dir;
diff --git a/include/squashfs.h b/include/squashfs.h
index f9df73d..ed3fd38 100644
--- a/include/squashfs.h
+++ b/include/squashfs.h
@@ -13,7 +13,7 @@
#define SQFS_DEVBLK_SIZE 4096
#define SQFS_MAX_DIR_ENT 256
-#define SQFS_DIR_TYPE_MOD 8
+#define SQFS_INODE_EXT_TYPE(type) ((type) - 1 + 8)
typedef struct {
uint32_t magic;
diff --git a/mkfs/meta.c b/mkfs/meta.c
index ee37054..a0ea071 100644
--- a/mkfs/meta.c
+++ b/mkfs/meta.c
@@ -18,6 +18,21 @@ typedef struct {
idx_ref_t idx_nodes[];
} dir_index_t;
+static int get_type(mode_t mode)
+{
+ switch (mode & S_IFMT) {
+ case S_IFSOCK: return SQFS_INODE_SOCKET;
+ case S_IFIFO: return SQFS_INODE_FIFO;
+ case S_IFLNK: return SQFS_INODE_SLINK;
+ case S_IFBLK: return SQFS_INODE_BDEV;
+ case S_IFCHR: return SQFS_INODE_CDEV;
+ case S_IFDIR: return SQFS_INODE_DIR;
+ case S_IFREG: return SQFS_INODE_FILE;
+ default:
+ assert(0);
+ }
+}
+
static int dir_index_grow(dir_index_t **index)
{
size_t size = sizeof(dir_index_t) + sizeof(idx_ref_t) * 10;
@@ -119,7 +134,7 @@ static int write_dir(meta_writer_t *dm, dir_info_t *dir, dir_index_t **index)
for (i = 0; i < count; ++i) {
ent.offset = htole16(c->inode_ref & 0x0000FFFF);
ent.inode_number = htole16(c->inode_num - d->inode_num);
- ent.type = htole16(c->type % SQFS_DIR_TYPE_MOD);
+ ent.type = htole16(get_type(c->mode));
ent.size = htole16(strlen(c->name) - 1);
dir->size += sizeof(ent) + strlen(c->name);
@@ -144,6 +159,7 @@ static int write_inode(sqfs_info_t *info, meta_writer_t *im, meta_writer_t *dm,
uint32_t bs, offset;
sqfs_inode_t base;
uint64_t i, block;
+ int type;
if (id_table_id_to_index(&info->idtbl, node->uid, &uid_idx))
return -1;
@@ -157,61 +173,35 @@ static int write_inode(sqfs_info_t *info, meta_writer_t *im, meta_writer_t *dm,
info->super.inode_count += 1;
- switch (node->mode & S_IFMT) {
- case S_IFSOCK:
- node->type = SQFS_INODE_SOCKET;
- if (node->xattr != NULL)
- node->type = SQFS_INODE_EXT_SOCKET;
- break;
- case S_IFIFO:
- node->type = SQFS_INODE_FIFO;
- if (node->xattr != NULL)
- node->type = SQFS_INODE_EXT_FIFO;
- break;
- case S_IFLNK:
- node->type = SQFS_INODE_SLINK;
- if (node->xattr != NULL)
- node->type = SQFS_INODE_EXT_SLINK;
- break;
- case S_IFBLK:
- node->type = SQFS_INODE_BDEV;
- if (node->xattr != NULL)
- node->type = SQFS_INODE_EXT_BDEV;
- break;
- case S_IFCHR:
- node->type = SQFS_INODE_CDEV;
- if (node->xattr != NULL)
- node->type = SQFS_INODE_EXT_CDEV;
- break;
- case S_IFDIR:
+ type = get_type(node->mode);
+
+ if (node->xattr != NULL)
+ type = SQFS_INODE_EXT_TYPE(type);
+
+ if (S_ISDIR(node->mode)) {
di = node->data.dir;
- node->type = SQFS_INODE_DIR;
if (write_dir(dm, di, &diridx))
return -1;
if ((di->start_block) > 0xFFFFFFFFUL || di->size > 0xFFFF ||
(node->xattr != NULL && di->size != 0)) {
- node->type = SQFS_INODE_EXT_DIR;
+ type = SQFS_INODE_EXT_DIR;
} else {
+ type = SQFS_INODE_DIR;
free(diridx);
diridx = NULL;
}
- break;
- case S_IFREG:
+ } else if (S_ISREG(node->mode)) {
fi = node->data.file;
- node->type = SQFS_INODE_FILE;
if (fi->startblock > 0xFFFFFFFFUL || fi->size > 0xFFFFFFFFUL ||
- hard_link_count(node) > 1 || node->xattr != NULL) {
- node->type = SQFS_INODE_EXT_FILE;
+ hard_link_count(node) > 1) {
+ type = SQFS_INODE_EXT_FILE;
}
- break;
- default:
- assert(0);
}
- base.type = htole16(node->type);
+ base.type = htole16(type);
base.mode = htole16(node->mode);
base.uid_idx = htole16(uid_idx);
base.gid_idx = htole16(gid_idx);
@@ -223,7 +213,7 @@ static int write_inode(sqfs_info_t *info, meta_writer_t *im, meta_writer_t *dm,
return -1;
}
- switch (node->type) {
+ switch (type) {
case SQFS_INODE_FIFO:
case SQFS_INODE_SOCKET: {
sqfs_inode_ipc_t ipc = {
diff --git a/unpack/tree_node_from_inode.c b/unpack/tree_node_from_inode.c
index 2e720d3..0fd7da1 100644
--- a/unpack/tree_node_from_inode.c
+++ b/unpack/tree_node_from_inode.c
@@ -72,7 +72,6 @@ tree_node_t *tree_node_from_inode(sqfs_inode_generic_t *inode,
out->uid = idtbl->ids[inode->base.uid_idx];
out->gid = idtbl->ids[inode->base.gid_idx];
out->mode = inode->base.mode;
- out->type = inode->base.type;
out->inode_num = inode->base.inode_number;
out->name = (char *)out->payload;