diff options
| -rw-r--r-- | meta/recipes-devtools/e2fsprogs/e2fsprogs/0003-misc-create_inode.c-create-special-file.patch | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/meta/recipes-devtools/e2fsprogs/e2fsprogs/0003-misc-create_inode.c-create-special-file.patch b/meta/recipes-devtools/e2fsprogs/e2fsprogs/0003-misc-create_inode.c-create-special-file.patch new file mode 100644 index 0000000000..3847b6e5ce --- /dev/null +++ b/meta/recipes-devtools/e2fsprogs/e2fsprogs/0003-misc-create_inode.c-create-special-file.patch @@ -0,0 +1,103 @@ +From ae7d33823bfc330e08b25c5fe4d25838ef7c77ce Mon Sep 17 00:00:00 2001 +From: Robert Yang <liezhi.yang@windriver.com> +Date: Mon, 23 Dec 2013 03:13:28 -0500 +Subject: [PATCH 03/11] misc/create_inode.c: create special file + +The do_mknod_internal() is used for creating special file which is +block, character and fifo, most of the code are from debugfs/debugfs.c, +the debugfs/debugfs.c will be modified to use this function. + +Upstream-Status: Backport + +Signed-off-by: Robert Yang <liezhi.yang@windriver.com> +Reviewed-by: Darren Hart <dvhart@linux.intel.com> +--- + misc/create_inode.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 72 insertions(+) + +diff --git a/misc/create_inode.c b/misc/create_inode.c +index b68b910..4da8aff 100644 +--- a/misc/create_inode.c ++++ b/misc/create_inode.c +@@ -11,6 +11,78 @@ + /* Make a special file which is block, character and fifo */ + errcode_t do_mknod_internal(ext2_ino_t cwd, const char *name, struct stat *st) + { ++ ext2_ino_t ino; ++ errcode_t retval; ++ struct ext2_inode inode; ++ unsigned long major, minor, mode; ++ int filetype; ++ ++ switch(st->st_mode & S_IFMT) { ++ case S_IFCHR: ++ mode = LINUX_S_IFCHR; ++ filetype = EXT2_FT_CHRDEV; ++ break; ++ case S_IFBLK: ++ mode = LINUX_S_IFBLK; ++ filetype = EXT2_FT_BLKDEV; ++ break; ++ case S_IFIFO: ++ mode = LINUX_S_IFIFO; ++ filetype = EXT2_FT_FIFO; ++ break; ++ } ++ ++ if (!(current_fs->flags & EXT2_FLAG_RW)) { ++ com_err(__func__, 0, "Filesystem opened read/only"); ++ return -1; ++ } ++ retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &ino); ++ if (retval) { ++ com_err(__func__, retval, 0); ++ return retval; ++ } ++ ++#ifdef DEBUGFS ++ printf("Allocated inode: %u\n", ino); ++#endif ++ retval = ext2fs_link(current_fs, cwd, name, ino, filetype); ++ if (retval == EXT2_ET_DIR_NO_SPACE) { ++ retval = ext2fs_expand_dir(current_fs, cwd); ++ if (retval) { ++ com_err(__func__, retval, "while expanding directory"); ++ return retval; ++ } ++ retval = ext2fs_link(current_fs, cwd, name, ino, filetype); ++ } ++ if (retval) { ++ com_err(name, retval, 0); ++ return -1; ++ } ++ if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) ++ com_err(__func__, 0, "Warning: inode already set"); ++ ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0); ++ memset(&inode, 0, sizeof(inode)); ++ inode.i_mode = mode; ++ inode.i_atime = inode.i_ctime = inode.i_mtime = ++ current_fs->now ? current_fs->now : time(0); ++ ++ major = major(st->st_rdev); ++ minor = minor(st->st_rdev); ++ ++ if ((major < 256) && (minor < 256)) { ++ inode.i_block[0] = major * 256 + minor; ++ inode.i_block[1] = 0; ++ } else { ++ inode.i_block[0] = 0; ++ inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12); ++ } ++ inode.i_links_count = 1; ++ ++ retval = ext2fs_write_new_inode(current_fs, ino, &inode); ++ if (retval) ++ com_err(__func__, retval, "while creating inode %u", ino); ++ ++ return retval; + } + + /* Make a symlink name -> target */ +-- +1.7.10.4 + |