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Align function prototypes for libss's request handler function
[tools/e2fsprogs.git] / debugfs / set_fields.c
index 3cdf617..bfe8a13 100644 (file)
@@ -53,6 +53,7 @@ static int array_idx;
 
 #define FLAG_ARRAY     0x0001
 #define FLAG_ALIAS     0x0002  /* Data intersects with other field */
+#define FLAG_CSUM      0x0004
 
 struct field_set_info {
        const char      *name;
@@ -69,9 +70,14 @@ static errcode_t parse_int(struct field_set_info *info, char *field, char *arg);
 static errcode_t parse_string(struct field_set_info *info, char *field, char *arg);
 static errcode_t parse_uuid(struct field_set_info *info, char *field, char *arg);
 static errcode_t parse_hashalg(struct field_set_info *info, char *field, char *arg);
-static errcode_t parse_time(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_encoding(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_sb_time(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_ino_time(struct field_set_info *info, char *field, char *arg);
+
 static errcode_t parse_bmap(struct field_set_info *info, char *field, char *arg);
 static errcode_t parse_gd_csum(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_inode_csum(struct field_set_info *info, char *field,
+                                 char *arg);
 static errcode_t parse_mmp_clear(struct field_set_info *info, char *field,
                                 char *arg);
 
@@ -95,15 +101,16 @@ static struct field_set_info super_fields[] = {
        { "blocks_per_group", &set_sb.s_blocks_per_group, NULL, 4, parse_uint },
        { "clusters_per_group", &set_sb.s_clusters_per_group, NULL, 4, parse_uint },
        { "inodes_per_group", &set_sb.s_inodes_per_group, NULL, 4, parse_uint },
-       { "mtime", &set_sb.s_mtime, NULL, 4, parse_time },
-       { "wtime", &set_sb.s_wtime, NULL, 4, parse_time },
+       { "mtime", &set_sb.s_mtime, &set_sb.s_mtime_hi, 5, parse_sb_time },
+       { "wtime", &set_sb.s_wtime, &set_sb.s_wtime_hi, 5, parse_sb_time },
        { "mnt_count", &set_sb.s_mnt_count, NULL, 2, parse_uint },
        { "max_mnt_count", &set_sb.s_max_mnt_count, NULL, 2, parse_int },
        /* s_magic */
        { "state", &set_sb.s_state, NULL, 2, parse_uint },
        { "errors", &set_sb.s_errors, NULL, 2, parse_uint },
        { "minor_rev_level", &set_sb.s_minor_rev_level, NULL, 2, parse_uint },
-       { "lastcheck", &set_sb.s_lastcheck, NULL, 4, parse_time },
+       { "lastcheck", &set_sb.s_lastcheck, &set_sb.s_lastcheck_hi, 5,
+               parse_sb_time },
        { "checkinterval", &set_sb.s_checkinterval, NULL, 4, parse_uint },
        { "creator_os", &set_sb.s_creator_os, NULL, 4, parse_uint },
        { "rev_level", &set_sb.s_rev_level, NULL, 4, parse_uint },
@@ -135,7 +142,8 @@ static struct field_set_info super_fields[] = {
        { "desc_size", &set_sb.s_desc_size, NULL, 2, parse_uint },
        { "default_mount_opts", &set_sb.s_default_mount_opts, NULL, 4, parse_uint },
        { "first_meta_bg", &set_sb.s_first_meta_bg, NULL, 4, parse_uint },
-       { "mkfs_time", &set_sb.s_mkfs_time, NULL, 4, parse_time },
+       { "mkfs_time", &set_sb.s_mkfs_time, &set_sb.s_mkfs_time_hi, 5,
+               parse_sb_time },
        { "jnl_blocks", &set_sb.s_jnl_blocks[0], NULL, 4, parse_uint, FLAG_ARRAY,
          17 },
        { "min_extra_isize", &set_sb.s_min_extra_isize, NULL, 2, parse_uint },
@@ -156,19 +164,21 @@ static struct field_set_info super_fields[] = {
        { "usr_quota_inum", &set_sb.s_usr_quota_inum, NULL, 4, parse_uint },
        { "grp_quota_inum", &set_sb.s_grp_quota_inum, NULL, 4, parse_uint },
        { "prj_quota_inum", &set_sb.s_prj_quota_inum, NULL, 4, parse_uint },
-       { "overhead_blocks", &set_sb.s_overhead_blocks, NULL, 4, parse_uint },
+       { "overhead_clusters", &set_sb.s_overhead_clusters, NULL, 4, parse_uint },
        { "backup_bgs", &set_sb.s_backup_bgs[0], NULL, 4, parse_uint,
          FLAG_ARRAY, 2 },
        { "checksum", &set_sb.s_checksum, NULL, 4, parse_uint },
        { "checksum_type", &set_sb.s_checksum_type, NULL, 1, parse_uint },
        { "encryption_level", &set_sb.s_encryption_level, NULL, 1, parse_uint },
        { "error_count", &set_sb.s_error_count, NULL, 4, parse_uint },
-       { "first_error_time", &set_sb.s_first_error_time, NULL, 4, parse_time },
+       { "first_error_time", &set_sb.s_first_error_time,
+               &set_sb.s_first_error_time_hi, 5, parse_sb_time },
        { "first_error_ino", &set_sb.s_first_error_ino, NULL, 4, parse_uint },
        { "first_error_block", &set_sb.s_first_error_block, NULL, 8, parse_uint },
        { "first_error_func", &set_sb.s_first_error_func, NULL, 32, parse_string },
        { "first_error_line", &set_sb.s_first_error_line, NULL, 4, parse_uint },
-       { "last_error_time", &set_sb.s_last_error_time, NULL, 4, parse_time },
+       { "last_error_time", &set_sb.s_last_error_time,
+               &set_sb.s_last_error_time_hi, 5, parse_sb_time },
        { "last_error_ino", &set_sb.s_last_error_ino, NULL, 4, parse_uint },
        { "last_error_block", &set_sb.s_last_error_block, NULL, 8, parse_uint },
        { "last_error_func", &set_sb.s_last_error_func, NULL, 32, parse_string },
@@ -178,6 +188,8 @@ static struct field_set_info super_fields[] = {
        { "encrypt_pw_salt", &set_sb.s_encrypt_pw_salt, NULL, 16, parse_uuid },
        { "lpf_ino", &set_sb.s_lpf_ino, NULL, 4, parse_uint },
        { "checksum_seed", &set_sb.s_checksum_seed, NULL, 4, parse_uint },
+       { "encoding", &set_sb.s_encoding, NULL, 2, parse_encoding },
+       { "orphan_file_inum", &set_sb.s_orphan_file_inum, NULL, 4, parse_uint },
        { 0, 0, 0, 0 }
 };
 
@@ -187,13 +199,13 @@ static struct field_set_info inode_fields[] = {
                2, parse_uint },
        { "size", &set_inode.i_size, &set_inode.i_size_high, 4, parse_uint },
        { "atime", &set_inode.i_atime, &set_inode.i_atime_extra,
-               4, parse_time },
+               4, parse_ino_time },
        { "ctime", &set_inode.i_ctime, &set_inode.i_ctime_extra,
-               4, parse_time },
+               4, parse_ino_time },
        { "mtime", &set_inode.i_mtime, &set_inode.i_mtime_extra,
-               4, parse_time },
+               4, parse_ino_time },
        { "dtime", &set_inode.i_dtime, NULL,
-               4, parse_time },
+               4, parse_ino_time },
        { "gid", &set_inode.i_gid, &set_inode.osd2.linux2.l_i_gid_high,
                2, parse_uint },
        { "links_count", &set_inode.i_links_count, NULL, 2, parse_uint },
@@ -218,7 +230,7 @@ static struct field_set_info inode_fields[] = {
        { "frag", &set_inode.osd2.hurd2.h_i_frag, NULL, 1, parse_uint, FLAG_ALIAS },
        { "fsize", &set_inode.osd2.hurd2.h_i_fsize, NULL, 1, parse_uint },
        { "checksum", &set_inode.osd2.linux2.l_i_checksum_lo, 
-               &set_inode.i_checksum_hi, 2, parse_uint },
+               &set_inode.i_checksum_hi, 2, parse_inode_csum, FLAG_CSUM },
        { "author", &set_inode.osd2.hurd2.h_i_author, NULL,
                4, parse_uint, FLAG_ALIAS },
        { "extra_isize", &set_inode.i_extra_isize, NULL,
@@ -230,7 +242,7 @@ static struct field_set_info inode_fields[] = {
        { "atime_extra", &set_inode.i_atime_extra, NULL,
                4, parse_uint, FLAG_ALIAS },
        { "crtime", &set_inode.i_crtime, &set_inode.i_crtime_extra,
-               4, parse_time },
+               4, parse_ino_time },
        { "crtime_extra", &set_inode.i_crtime_extra, NULL,
                4, parse_uint, FLAG_ALIAS },
        { "projid", &set_inode.i_projid, NULL, 4, parse_uint },
@@ -435,6 +447,9 @@ static struct field_set_info *find_field(struct field_set_info *fields,
  * Note: info->size == 6 is special; this means a base size 4 bytes,
  * and secondary (high) size of 2 bytes.  This is needed for the
  * special case of i_blocks_high and i_file_acl_high.
+ *
+ * Similarly, info->size == 5 is for superblock timestamps, which have
+ * a 4-byte primary field and a 1-byte _hi field.
  */
 static errcode_t parse_uint(struct field_set_info *info, char *field,
                            char *arg)
@@ -443,7 +458,8 @@ static errcode_t parse_uint(struct field_set_info *info, char *field,
        int suffix = check_suffix(field);
        char *tmp;
        void *field1 = info->ptr, *field2 = info->ptr2;
-       int size = (info->size == 6) ? 4 : info->size;
+       unsigned int size = (info->size == 6 || info->size == 5) ? 4 :
+               info->size;
        union {
                __u64   *ptr64;
                __u32   *ptr32;
@@ -471,7 +487,7 @@ static errcode_t parse_uint(struct field_set_info *info, char *field,
        }
        mask = ~0ULL >> ((8 - size) * 8);
        limit = ~0ULL >> ((8 - info->size) * 8);
-       if (field2 && info->size != 6)
+       if (field2 && (info->size != 6 && info->size != 5))
                limit = ~0ULL >> ((8 - info->size*2) * 8);
 
        if (num > limit) {
@@ -482,10 +498,7 @@ static errcode_t parse_uint(struct field_set_info *info, char *field,
        n = num & mask;
        switch (size) {
        case 8:
-               /* Should never get here */
-               fprintf(stderr, "64-bit field %s has a second 64-bit field\n"
-                       "defined; BUG?!?\n", info->name);
-               *u.ptr64 = 0;
+               *u.ptr64 = n;
                break;
        case 4:
                *u.ptr32 = n;
@@ -501,11 +514,15 @@ static errcode_t parse_uint(struct field_set_info *info, char *field,
                return 0;
        n = (size == 8) ? 0 : (num >> (size*8));
        u.ptr8 = (__u8 *) field2;
-       if (info->size == 6)
-               size = 2;
+       if (info->size > size)
+               size = info->size - size;
        switch (size) {
        case 8:
-               *u.ptr64 = n;
+               /* Should never get here */
+               fprintf(stderr,
+                       "64-bit field %s has a second 64-bit field defined; BUG?!?\n",
+                       info->name);
+               *u.ptr64 = 0;
                break;
        case 4:
                *u.ptr32 = n;
@@ -566,18 +583,19 @@ static errcode_t parse_string(struct field_set_info *info,
        return 0;
 }
 
-static errcode_t parse_time(struct field_set_info *info,
-                           char *field, char *arg)
+static errcode_t parse_sb_time(struct field_set_info *info,
+                              char *field, char *arg)
 {
        __s64           t;
        __u32           t_low, t_high;
-       __u32           *ptr_low, *ptr_high;
+       __u32           *ptr_low;
+       __u8            *ptr_high;
 
        if (check_suffix(field))
                return parse_uint(info, field, arg);
 
        ptr_low  = (__u32 *) info->ptr;
-       ptr_high = (__u32 *) info->ptr2;
+       ptr_high = (__u8 *) info->ptr2;
 
        t = string_to_time(arg);
 
@@ -594,6 +612,34 @@ static errcode_t parse_time(struct field_set_info *info,
        return 0;
 }
 
+static errcode_t parse_ino_time(struct field_set_info *info,
+                              char *field, char *arg)
+{
+       __s64           t;
+       __u32           t_low, t_high;
+       __u32           *ptr_low, *ptr_high;
+
+       if (check_suffix(field))
+               return parse_uint(info, field, arg);
+
+       ptr_low  = (__u32 *) info->ptr;
+       ptr_high = (__u32 *) info->ptr2;
+
+       t = string_to_time(arg);
+
+       if (t == -1) {
+               fprintf(stderr, "Couldn't parse '%s' for field %s.\n",
+                       arg, info->name);
+               return EINVAL;
+       }
+       t_low = (__u32) t;
+       t_high = __encode_extra_time(t, 0);
+       *ptr_low = t_low;
+       if (ptr_high)
+               *ptr_high = t_high;
+       return 0;
+}
+
 static errcode_t parse_uuid(struct field_set_info *info,
                            char *field EXT2FS_ATTR((unused)), char *arg)
 {
@@ -628,6 +674,19 @@ static errcode_t parse_hashalg(struct field_set_info *info,
        return 0;
 }
 
+static errcode_t parse_encoding(struct field_set_info *info,
+                               char *field EXT2FS_ATTR((unused)), char *arg)
+{
+       int     encoding;
+       unsigned char   *p = (unsigned char *) info->ptr;
+
+       encoding = e2p_str2encoding(arg);
+       if (encoding < 0)
+               return parse_uint(info, field, arg);
+       *p = encoding;
+       return 0;
+}
+
 static errcode_t parse_bmap(struct field_set_info *info,
                            char *field EXT2FS_ATTR((unused)), char *arg)
 {
@@ -665,6 +724,67 @@ static errcode_t parse_gd_csum(struct field_set_info *info, char *field,
        return parse_uint(info, field, arg);
 }
 
+static errcode_t parse_inode_csum(struct field_set_info *info, char *field,
+                                 char *arg)
+{
+       errcode_t       retval = 0;
+       __u32           crc;
+       int             is_large_inode = 0;
+
+       if (strcmp(arg, "calc") == 0) {
+               size_t sz = EXT2_INODE_SIZE(current_fs->super);
+               struct ext2_inode_large *tmp_inode = NULL;
+
+               retval = ext2fs_get_mem(sz, &tmp_inode);
+               if (retval)
+                       goto out;
+
+               retval = ext2fs_read_inode_full(current_fs, set_ino,
+                                    (struct ext2_inode *) tmp_inode,
+                                    sz);
+               if (retval)
+                       goto out;
+
+#ifdef WORDS_BIGENDIAN
+               ext2fs_swap_inode_full(current_fs, tmp_inode,
+                                      tmp_inode, 1, sz);
+#endif
+
+               if (sz > EXT2_GOOD_OLD_INODE_SIZE)
+                       is_large_inode = 1;
+
+               retval = ext2fs_inode_csum_set(current_fs, set_ino,
+                                              tmp_inode);
+               if (retval)
+                       goto out;
+#ifdef WORDS_BIGENDIAN
+               crc = set_inode.i_checksum_lo =
+                       ext2fs_swab16(tmp_inode->i_checksum_lo);
+
+#else
+               crc = set_inode.i_checksum_lo = tmp_inode->i_checksum_lo;
+#endif
+               if (is_large_inode &&
+                   set_inode.i_extra_isize >=
+                               (offsetof(struct ext2_inode_large,
+                                         i_checksum_hi) -
+                                EXT2_GOOD_OLD_INODE_SIZE)) {
+#ifdef WORDS_BIGENDIAN
+                       set_inode.i_checksum_lo =
+                               ext2fs_swab16(tmp_inode->i_checksum_lo);
+#else
+                       set_inode.i_checksum_hi = tmp_inode->i_checksum_hi;
+#endif
+                       crc |= ((__u32)set_inode.i_checksum_hi) << 16;
+               }
+               printf("Checksum set to 0x%08x\n", crc);
+       out:
+               ext2fs_free_mem(&tmp_inode);
+               return retval;
+       }
+       return parse_uint(info, field, arg);
+}
+
 static void print_possible_fields(struct field_set_info *fields)
 {
        struct field_set_info *ss;
@@ -701,7 +821,8 @@ static void print_possible_fields(struct field_set_info *fields)
                        type = "UUID";
                else if (ss->func == parse_hashalg)
                        type = "hash algorithm";
-               else if (ss->func == parse_time)
+               else if ((ss->func == parse_sb_time) ||
+                        (ss->func == parse_ino_time))
                        type = "date/time";
                else if (ss->func == parse_bmap)
                        type = "set physical->logical block map";
@@ -723,7 +844,8 @@ static void print_possible_fields(struct field_set_info *fields)
 }
 
 
-void do_set_super(int argc, char *argv[])
+void do_set_super(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
+                 void *infop EXT2FS_ATTR((unused)))
 {
        const char *usage = "<field> <value>\n"
                "\t\"set_super_value -l\" will list the names of "
@@ -750,7 +872,8 @@ void do_set_super(int argc, char *argv[])
        }
 }
 
-void do_set_inode(int argc, char *argv[])
+void do_set_inode(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
+                 void *infop EXT2FS_ATTR((unused)))
 {
        const char *usage = "<inode> <field> <value>\n"
                "\t\"set_inode_field -l\" will list the names of "
@@ -775,20 +898,25 @@ void do_set_inode(int argc, char *argv[])
        if (!set_ino)
                return;
 
-       if (debugfs_read_inode_full(set_ino,
-                       (struct ext2_inode *) &set_inode, argv[1],
-                                   sizeof(set_inode)))
+       if (debugfs_read_inode2(set_ino,
+                               (struct ext2_inode *) &set_inode, argv[1],
+                               sizeof(set_inode),
+                               (ss->flags & FLAG_CSUM) ?
+                               READ_INODE_NOCSUM : 0))
                return;
 
        if (ss->func(ss, argv[2], argv[3]) == 0) {
-               if (debugfs_write_inode_full(set_ino, 
-                            (struct ext2_inode *) &set_inode,
-                            argv[1], sizeof(set_inode)))
-                       return;
+               debugfs_write_inode2(set_ino,
+                                    (struct ext2_inode *) &set_inode,
+                                    argv[1], sizeof(set_inode),
+                                    (ss->flags & FLAG_CSUM) ?
+                                    WRITE_INODE_NOCSUM : 0);
        }
 }
 
-void do_set_block_group_descriptor(int argc, char *argv[])
+void do_set_block_group_descriptor(int argc, ss_argv_t argv,
+                                  int sci_idx EXT2FS_ATTR((unused)),
+                                  void *infop EXT2FS_ATTR((unused)))
 {
        const char *usage = "<bg number> <field> <value>\n"
                "\t\"set_block_group -l\" will list the names of "
@@ -866,7 +994,8 @@ static errcode_t parse_mmp_clear(struct field_set_info *info,
 }
 
 #ifdef CONFIG_MMP
-void do_set_mmp_value(int argc, char *argv[])
+void do_set_mmp_value(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
+                     void *infop EXT2FS_ATTR((unused)))
 {
        const char *usage = "<field> <value>\n"
                "\t\"set_mmp_value -l\" will list the names of "
@@ -925,7 +1054,9 @@ void do_set_mmp_value(int argc, char *argv[])
 }
 #else
 void do_set_mmp_value(int argc EXT2FS_ATTR((unused)),
-                     char *argv[] EXT2FS_ATTR((unused)))
+                     ss_argv_t argv EXT2FS_ATTR((unused)),
+                     int sci_idx EXT2FS_ATTR((unused)),
+                     void *infop EXT2FS_ATTR((unused)))
 {
        fprintf(stdout, "MMP is unsupported, please recompile with "
                        "--enable-mmp\n");