chore: all still wip

docs/book/main.tex

@@ -134,9 +134,8 @@ struct inode {
 	 		\textbf{flags} & \textbf{value} & \textbf{Description}  \\ 
 			\hline
 			STPDFS\_INODE\_ALLOCATED & 1 << 15 & if set inode is allocated \\
-			STPDFS\_INODE\_LARGE\_FILE & 1 << 0 & \\
+			STPDFS\_INODE\_LZP & 1 << 0 & if set data are compressed \\
-			STPDFS\_INODE\_LZP & 1 << 1 & if set data are compressed \\
+			STPDFS\_INODE\_ENC &  1 << 1 & if set data are encrypted \\
-			STPDFS\_INODE\_ENC &  1 << 2 & if set data are encrypted \\
  		\hline
 		\end{tabular}
 	\end{center}

fuse/main.c

@@ -109,6 +109,7 @@ fuse_stpdfs_getattr(const char *path, struct stat *stbuf,
 	stbuf->st_mode = inode.mode;
 	stbuf->st_gid = inode.gid;
 	stbuf->st_uid = inode.uid;
+	stbuf->st_nlink = inode.nlink;
 	return (0);
 }
 

lib/block.c

@@ -1,3 +1,7 @@
+/**
+ * file: block.c
+ */
+
 #include "stpdfs.h"
 #include <stdio.h>
 #include <stdint.h>

lib/data.c

@@ -1,16 +1,82 @@
 #include "stpdfs.h"
+#include <string.h>
 
-int
+static void
-stpdfs_add_data(int fd, struct stpdfs_sb *sb, struct stpdfs_inode *inode, uint8_t *buffer, size_t size)
+write_indirect(int fd, struct stpdfs_sb *sb, struct stpdfs_inode *inode, size_t zone, uint8_t *buffer, size_t size)
 {
-	size_t idx;
-	size_t max_zone;
 
-	if (size > STPDFS_BLOCK_SIZE)
+}
+
+static void
+write_zone(int fd, struct stpdfs_sb *sb, struct stpdfs_inode *inode, size_t zone, uint8_t *buffer, size_t size)
+{
+	uint32_t zones[128];
+
+	if (zone < 7)
 	{
-		for (idx = 0; idx < size / STPDFS_BLOCK_SIZE; idx++)
+		if (inode->zones[zone] == 0)
 		{
-			stpdfs_add_data(fd, sb, inode, buffer, 512 * idx);
+			inode->zones[zone] = stpdfs_alloc_block(fd, sb);
+		}
+		stpdfs_write(fd, inode->zones[zone], buffer, size);
+
+		return;
+	}
+	
+	if (zone < 135)
+	{
+		if (inode->zones[7] == 0)
+		{
+			inode->zones[7] = stpdfs_alloc_block(fd, sb);
+			memset(zones, 0, 512);
+			stpdfs_write(fd, inode->zones[7], zones, 512);
+		}
+
+		stpdfs_read(fd, inode->zones[7], zones, 512);
+		if (zones[zone - 7] == 0)
+		{
+			zones[zone - 7] = stpdfs_alloc_block(fd, sb);
+			stpdfs_write(fd, inode->zones[7], zones, 512);
+		}
+
+		stpdfs_write(fd, zones[zone - 7], buffer, size);
+		
+		return;
+	}
+
+	if (zone < 16519)
+	{
+		if (inode->zones[8] == 0)
+		{
+			inode->zones[8] = stpdfs_alloc_block(fd, sb);
+			memset(zones, 0, 512);
+			stpdfs_write(fd, inode->zones[7], zones, 512);
+		}
+		stpdfs_read(fd, inode->zones[8], zones, 512);
+
+		if (zones[(zone - 135) / 128] == 0)
+		{
+			zones[(zone - 135) / 128] = stpdfs_alloc_block(fd, sb);
 		}
 	}
 }
+
+int
+stpdfs_write_data(int fd, struct stpdfs_sb *sb, struct stpdfs_inode *inode, uint8_t *buffer, size_t size)
+{
+	size_t idx;
+	uint32_t zonenum;
+	size_t max_zone;
+
+	for (idx = 0; idx < size; idx += STPDFS_BLOCK_SIZE)
+	{
+		max_zone = idx / STPDFS_BLOCK_SIZE;
+		for (zonenum = 0; zonenum < max_zone; zonenum++)
+		{
+			write_zone(fd, sb, inode, zonenum, buffer + idx, ((idx + 1) * 512) > size ? size % 512 : 512);
+		}
+
+	}
+
+	return (0)
+}

lib/stpdfs.h

@@ -13,7 +13,7 @@
 # define STPDFS_BLOCK_SIZE_BITS 9
 # define STPDFS_BLOCK_SIZE (1 << STPDFS_BLOCK_SIZE_BITS)
 
-# define STPDFS_NAME_MAX 28
+# define STPDFS_NAME_MAX 255
 
 # define STPDFS_INODES_PER_BLOCK (STPDFS_BLOCK_SIZE / (sizeof(struct stpdfs_inode)))
 # define STPDFS_DIRENT_PER_BLOCK (STPDFS_BLOCK_SIZE / (sizeof(struct stpdfs_dirent)))
@@ -32,6 +32,12 @@
 # define STPDFS_S_IFBLK  0x6000
 # define STPDFS_S_IFDIR  0x4000
 
+typedef uint32_t zone_t; /**< zone number */
+typedef uint32_t block_t; /**< block number */
+
+/**
+ * \brief free block list
+ */
 struct stpdfs_free {
 	uint32_t free[100];
 	uint8_t nfree;
@@ -88,7 +94,23 @@ struct stpdfs_dirent {
 size_t stpdfs_write(int fd, uint32_t blocknum, void *data, size_t size);
 size_t stpdfs_read(int fd, uint32_t blocknum, void *data, size_t size);
 
+
+/**
+  * mark block as available for new allocation.
+  * 
+  * \param fd file descriptor.
+  * \param sb pointer to \ref stpdfs_sb.
+  * \param blocknum block to free
+  */
 uint32_t stpdfs_alloc_block(int fd, struct stpdfs_sb *sb);
+
+/**
+  * find a free block.
+  *
+  * \param fd file descriptor.
+  * \param sb pointer to \ref stpdfs_sb.
+  * \return block number or 0 if no block found.
+  */
 int stpdfs_free_block(int fd, struct stpdfs_sb *sb, uint32_t blocknum);
 
 /* superblock.c */

tools/Makefile.am

@@ -1,8 +1,10 @@
 AM_CFLAGS = -I$(top_srcdir)/lib -I$(top_srcdir)
 LDADD = ../lib/libstpdfs.a
 
-bin_PROGRAMS = mkfs.stpd
+bin_PROGRAMS = mkfs.stpd tools.stpd
 
 mkfs_stpd_SOURCES = mkfs/main.c
 
-man_MANS = mkfs/mkfs.stpd.8
+tools_stpd_SOURCES = tools/main.c
+
+man_MANS = mkfs/mkfs.stpd.8 tools/tools.stpd.8

tools/tools/main.c

@@ -0,0 +1,5 @@
+int
+main(void)
+{
+    return (0);
+}