ext4: special inode creation support

2 files changed, 20 insertions, 0 deletions

diff --git a/include/ext4.h b/include/ext4.h
index fede38f..b1c7a61 100644
--- a/include/ext4.h
+++ b/include/ext4.h
@@ -373,6 +373,14 @@ int ext4_file_set_ctime(const char *path, uint32_t ctime);
  * @return standard error code*/
 int ext4_fsymlink(const char *target, const char *path);
 
+/**@brief Create special file
+ * @param path path to new file
+ * @param filetype The filetype of the new special file
+ * 	  (that must not be regular file, directory, or unknown type)
+ * @param dev if filetype is char device or block device,
+ * 	  the device number will become the payload in the inode
+ * @return standard error code*/
+int ext4_mknod(const char *path, int filetype, uint32_t dev);
 
 /**@brief Read symbolic link payload
  * @param path to symlink
diff --git a/include/ext4_inode.h b/include/ext4_inode.h
index 9498f0a..e0ca6e3 100644
--- a/include/ext4_inode.h
+++ b/include/ext4_inode.h
@@ -267,6 +267,18 @@ uint32_t ext4_inode_get_indirect_block(struct ext4_inode *inode, uint32_t idx);
 void ext4_inode_set_indirect_block(struct ext4_inode *inode, uint32_t idx,
 				   uint32_t block);
 
+/**@brief Get device number
+ * @param inode  I-node to get device number from
+ * @return Device number
+ */
+uint32_t ext4_inode_get_dev(struct ext4_inode *inode);
+
+/**@brief Set device number
+ * @param inode  I-node to set device number to
+ * @param dev    Device number
+ */
+void ext4_inode_set_dev(struct ext4_inode *inode, uint32_t dev);
+
 /**@brief return the type of i-node
  * @param sb    Superblock
  * @param inode I-node to return the type of