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authorRobert Yang <liezhi.yang@windriver.com>2014-03-07 01:59:24 -0500
committerRichard Purdie <richard.purdie@linuxfoundation.org>2014-03-07 14:44:26 +0000
commitdcb86f12691b346262c0aadbe5b2f3671b4ecd22 (patch)
treea33376cd106bc162a04a5e188f5cf1602e69683c /meta/recipes-devtools
parentfd0d00dafcf497f23b1c3886d062c8a57e2aa515 (diff)
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e2fsprogs: mke2fs: 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. [YOCTO #4083] Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-devtools')
-rw-r--r--meta/recipes-devtools/e2fsprogs/e2fsprogs/0003-misc-create_inode.c-create-special-file.patch103
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
+