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-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 0000000..3847b6e
--- /dev/null
+++ b/meta/recipes-devtools/e2fsprogs/e2fsprogs/0003-misc-create_inode.c-create-special-file.patch
@@ -0,0 +1,103 @@
1From ae7d33823bfc330e08b25c5fe4d25838ef7c77ce Mon Sep 17 00:00:00 2001
2From: Robert Yang <liezhi.yang@windriver.com>
3Date: Mon, 23 Dec 2013 03:13:28 -0500
4Subject: [PATCH 03/11] misc/create_inode.c: create special file
5
6The do_mknod_internal() is used for creating special file which is
7block, character and fifo, most of the code are from debugfs/debugfs.c,
8the debugfs/debugfs.c will be modified to use this function.
9
10Upstream-Status: Backport
11
12Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
13Reviewed-by: Darren Hart <dvhart@linux.intel.com>
14---
15 misc/create_inode.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++
16 1 file changed, 72 insertions(+)
17
18diff --git a/misc/create_inode.c b/misc/create_inode.c
19index b68b910..4da8aff 100644
20--- a/misc/create_inode.c
21+++ b/misc/create_inode.c
22@@ -11,6 +11,78 @@
23 /* Make a special file which is block, character and fifo */
24 errcode_t do_mknod_internal(ext2_ino_t cwd, const char *name, struct stat *st)
25 {
26+ ext2_ino_t ino;
27+ errcode_t retval;
28+ struct ext2_inode inode;
29+ unsigned long major, minor, mode;
30+ int filetype;
31+
32+ switch(st->st_mode & S_IFMT) {
33+ case S_IFCHR:
34+ mode = LINUX_S_IFCHR;
35+ filetype = EXT2_FT_CHRDEV;
36+ break;
37+ case S_IFBLK:
38+ mode = LINUX_S_IFBLK;
39+ filetype = EXT2_FT_BLKDEV;
40+ break;
41+ case S_IFIFO:
42+ mode = LINUX_S_IFIFO;
43+ filetype = EXT2_FT_FIFO;
44+ break;
45+ }
46+
47+ if (!(current_fs->flags & EXT2_FLAG_RW)) {
48+ com_err(__func__, 0, "Filesystem opened read/only");
49+ return -1;
50+ }
51+ retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &ino);
52+ if (retval) {
53+ com_err(__func__, retval, 0);
54+ return retval;
55+ }
56+
57+#ifdef DEBUGFS
58+ printf("Allocated inode: %u\n", ino);
59+#endif
60+ retval = ext2fs_link(current_fs, cwd, name, ino, filetype);
61+ if (retval == EXT2_ET_DIR_NO_SPACE) {
62+ retval = ext2fs_expand_dir(current_fs, cwd);
63+ if (retval) {
64+ com_err(__func__, retval, "while expanding directory");
65+ return retval;
66+ }
67+ retval = ext2fs_link(current_fs, cwd, name, ino, filetype);
68+ }
69+ if (retval) {
70+ com_err(name, retval, 0);
71+ return -1;
72+ }
73+ if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino))
74+ com_err(__func__, 0, "Warning: inode already set");
75+ ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
76+ memset(&inode, 0, sizeof(inode));
77+ inode.i_mode = mode;
78+ inode.i_atime = inode.i_ctime = inode.i_mtime =
79+ current_fs->now ? current_fs->now : time(0);
80+
81+ major = major(st->st_rdev);
82+ minor = minor(st->st_rdev);
83+
84+ if ((major < 256) && (minor < 256)) {
85+ inode.i_block[0] = major * 256 + minor;
86+ inode.i_block[1] = 0;
87+ } else {
88+ inode.i_block[0] = 0;
89+ inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
90+ }
91+ inode.i_links_count = 1;
92+
93+ retval = ext2fs_write_new_inode(current_fs, ino, &inode);
94+ if (retval)
95+ com_err(__func__, retval, "while creating inode %u", ino);
96+
97+ return retval;
98 }
99
100 /* Make a symlink name -> target */
101--
1021.7.10.4
103