NetCube-Systems-Austria/kumquat-buildroot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mtd: fix big endian crc calculation

Browse Source 
Taken from upstream git.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Peter Korsgaard 2010-10-15 10:39:23 +02:00
parent 61f432ff01
commit 823aaef1ce
1 changed files with 240 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

240
package/mtd/mtd-1.4.0-clean-up-zlib.h-usage-a-bit.patch Normal file
View File

@ -0,0 +1,240 @@
From b864c387e8f16273aad1453d6457d847e29c3d25 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Wed, 22 Sep 2010 22:32:56 -0400
Subject: [PATCH] mtd-utils: clean up zlib.h usage a bit
Hide zlib's crc32 in compr_zlib.c and mkfs.ubifs/compr.c.
jffs2reader.c and mkfs.jffs2.c don't actually use zlib, so punt the
include from the file.
mkfs.jffs2.c is implicitly using crc32 from zlib.h instead of the
local mtd_crc32, so fix the local usage. otherwise we get warnings
about undefined crc32 because the file was redirecting the prototype.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---
compr_zlib.c | 2 ++
jffs2reader.c | 1 -
mkfs.jffs2.c | 49 +++++++++++++++++++++++--------------------------
mkfs.ubifs/compr.c | 1 +
4 files changed, 26 insertions(+), 27 deletions(-)
diff --git a/compr_zlib.c b/compr_zlib.c
index 400b18a..db4811d 100644
--- a/compr_zlib.c
+++ b/compr_zlib.c
@@ -33,7 +33,9 @@
*/
#include <stdint.h>
+#define crc32 __zlib_crc32
#include <zlib.h>
+#undef crc32
#include <stdio.h>
#include <asm/types.h>
#include <linux/jffs2.h>
diff --git a/jffs2reader.c b/jffs2reader.c
index cde1d06..0ad7207 100644
--- a/jffs2reader.c
+++ b/jffs2reader.c
@@ -75,7 +75,6 @@ BUGS:
#include <sys/stat.h>
#include <sys/param.h>
#include <dirent.h>
-#include <zlib.h>
#include <linux/jffs2.h>
#define SCRATCH_SIZE (5*1024*1024)
diff --git a/mkfs.jffs2.c b/mkfs.jffs2.c
index ebfdb50..5c18eb1 100644
--- a/mkfs.jffs2.c
+++ b/mkfs.jffs2.c
@@ -69,9 +69,6 @@
#include <sys/acl.h>
#endif
#include <byteswap.h>
-#define crc32 __zlib_crc32
-#include <zlib.h>
-#undef crc32
#include <crc32.h>
#include "rbtree.h"
@@ -798,7 +795,7 @@ static void write_dirent(struct filesystem_entry *e)
rd.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
rd.nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
rd.totlen = cpu_to_je32(sizeof(rd) + strlen(name));
- rd.hdr_crc = cpu_to_je32(crc32(0, &rd,
+ rd.hdr_crc = cpu_to_je32(mtd_crc32(0, &rd,
sizeof(struct jffs2_unknown_node) - 4));
rd.pino = cpu_to_je32((e->parent) ? e->parent->ino : 1);
rd.version = cpu_to_je32(version++);
@@ -808,8 +805,8 @@ static void write_dirent(struct filesystem_entry *e)
rd.type = IFTODT(statbuf->st_mode);
//rd.unused[0] = 0;
//rd.unused[1] = 0;
- rd.node_crc = cpu_to_je32(crc32(0, &rd, sizeof(rd) - 8));
- rd.name_crc = cpu_to_je32(crc32(0, name, strlen(name)));
+ rd.node_crc = cpu_to_je32(mtd_crc32(0, &rd, sizeof(rd) - 8));
+ rd.name_crc = cpu_to_je32(mtd_crc32(0, name, strlen(name)));
pad_block_if_less_than(sizeof(rd) + rd.nsize);
full_write(out_fd, &rd, sizeof(rd));
@@ -895,15 +892,15 @@ static unsigned int write_regular_file(struct filesystem_entry *e)
}
ri.totlen = cpu_to_je32(sizeof(ri) + space);
- ri.hdr_crc = cpu_to_je32(crc32(0,
+ ri.hdr_crc = cpu_to_je32(mtd_crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.version = cpu_to_je32(++ver);
ri.offset = cpu_to_je32(offset);
ri.csize = cpu_to_je32(space);
ri.dsize = cpu_to_je32(dsize);
- ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
- ri.data_crc = cpu_to_je32(crc32(0, wbuf, space));
+ ri.node_crc = cpu_to_je32(mtd_crc32(0, &ri, sizeof(ri) - 8));
+ ri.data_crc = cpu_to_je32(mtd_crc32(0, wbuf, space));
full_write(out_fd, &ri, sizeof(ri));
totcomp += sizeof(ri);
@@ -928,11 +925,11 @@ static unsigned int write_regular_file(struct filesystem_entry *e)
ri.version = cpu_to_je32(++ver);
ri.totlen = cpu_to_je32(sizeof(ri));
- ri.hdr_crc = cpu_to_je32(crc32(0,
+ ri.hdr_crc = cpu_to_je32(mtd_crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.csize = cpu_to_je32(0);
ri.dsize = cpu_to_je32(0);
- ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
+ ri.node_crc = cpu_to_je32(mtd_crc32(0, &ri, sizeof(ri) - 8));
full_write(out_fd, &ri, sizeof(ri));
padword();
@@ -967,7 +964,7 @@ static void write_symlink(struct filesystem_entry *e)
ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri.totlen = cpu_to_je32(sizeof(ri) + len);
- ri.hdr_crc = cpu_to_je32(crc32(0,
+ ri.hdr_crc = cpu_to_je32(mtd_crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.ino = cpu_to_je32(e->ino);
@@ -981,8 +978,8 @@ static void write_symlink(struct filesystem_entry *e)
ri.version = cpu_to_je32(1);
ri.csize = cpu_to_je32(len);
ri.dsize = cpu_to_je32(len);
- ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
- ri.data_crc = cpu_to_je32(crc32(0, e->link, len));
+ ri.node_crc = cpu_to_je32(mtd_crc32(0, &ri, sizeof(ri) - 8));
+ ri.data_crc = cpu_to_je32(mtd_crc32(0, e->link, len));
pad_block_if_less_than(sizeof(ri) + len);
full_write(out_fd, &ri, sizeof(ri));
@@ -1009,7 +1006,7 @@ static void write_pipe(struct filesystem_entry *e)
ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri.totlen = cpu_to_je32(sizeof(ri));
- ri.hdr_crc = cpu_to_je32(crc32(0,
+ ri.hdr_crc = cpu_to_je32(mtd_crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.ino = cpu_to_je32(e->ino);
@@ -1023,7 +1020,7 @@ static void write_pipe(struct filesystem_entry *e)
ri.version = cpu_to_je32(1);
ri.csize = cpu_to_je32(0);
ri.dsize = cpu_to_je32(0);
- ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
+ ri.node_crc = cpu_to_je32(mtd_crc32(0, &ri, sizeof(ri) - 8));
ri.data_crc = cpu_to_je32(0);
pad_block_if_less_than(sizeof(ri));
@@ -1049,7 +1046,7 @@ static void write_special_file(struct filesystem_entry *e)
ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri.totlen = cpu_to_je32(sizeof(ri) + sizeof(kdev));
- ri.hdr_crc = cpu_to_je32(crc32(0,
+ ri.hdr_crc = cpu_to_je32(mtd_crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.ino = cpu_to_je32(e->ino);
@@ -1063,8 +1060,8 @@ static void write_special_file(struct filesystem_entry *e)
ri.version = cpu_to_je32(1);
ri.csize = cpu_to_je32(sizeof(kdev));
ri.dsize = cpu_to_je32(sizeof(kdev));
- ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
- ri.data_crc = cpu_to_je32(crc32(0, &kdev, sizeof(kdev)));
+ ri.node_crc = cpu_to_je32(mtd_crc32(0, &ri, sizeof(ri) - 8));
+ ri.data_crc = cpu_to_je32(mtd_crc32(0, &kdev, sizeof(kdev)));
pad_block_if_less_than(sizeof(ri) + sizeof(kdev));
full_write(out_fd, &ri, sizeof(ri));
@@ -1177,15 +1174,15 @@ static xattr_entry_t *create_xattr_entry(int xprefix, char *xname, char *xvalue,
rx.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
rx.nodetype = cpu_to_je16(JFFS2_NODETYPE_XATTR);
rx.totlen = cpu_to_je32(PAD(sizeof(rx) + xe->name_len + 1 + xe->value_len));
- rx.hdr_crc = cpu_to_je32(crc32(0, &rx, sizeof(struct jffs2_unknown_node) - 4));
+ rx.hdr_crc = cpu_to_je32(mtd_crc32(0, &rx, sizeof(struct jffs2_unknown_node) - 4));
rx.xid = cpu_to_je32(xe->xid);
rx.version = cpu_to_je32(1); /* initial version */
rx.xprefix = xprefix;
rx.name_len = xe->name_len;
rx.value_len = cpu_to_je16(xe->value_len);
- rx.data_crc = cpu_to_je32(crc32(0, xe->xname, xe->name_len + 1 + xe->value_len));
- rx.node_crc = cpu_to_je32(crc32(0, &rx, sizeof(rx) - 4));
+ rx.data_crc = cpu_to_je32(mtd_crc32(0, xe->xname, xe->name_len + 1 + xe->value_len));
+ rx.node_crc = cpu_to_je32(mtd_crc32(0, &rx, sizeof(rx) - 4));
pad_block_if_less_than(sizeof(rx) + xe->name_len + 1 + xe->value_len);
full_write(out_fd, &rx, sizeof(rx));
@@ -1211,7 +1208,7 @@ static xattr_entry_t *find_xattr_entry(int xprefix, char *xname, char *xvalue, i
formalize_posix_acl(xvalue, &value_len);
name_len = strlen(xname);
- index = (crc32(0, xname, name_len) ^ crc32(0, xvalue, value_len)) % XATTRENTRY_HASHSIZE;
+ index = (mtd_crc32(0, xname, name_len) ^ mtd_crc32(0, xvalue, value_len)) % XATTRENTRY_HASHSIZE;
for (xe = xentry_hash[index]; xe; xe = xe->next) {
if (xe->xprefix == xprefix
&& xe->value_len == value_len
@@ -1291,11 +1288,11 @@ static void write_xattr_entry(struct filesystem_entry *e)
ref.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ref.nodetype = cpu_to_je16(JFFS2_NODETYPE_XREF);
ref.totlen = cpu_to_je32(sizeof(ref));
- ref.hdr_crc = cpu_to_je32(crc32(0, &ref, sizeof(struct jffs2_unknown_node) - 4));
+ ref.hdr_crc = cpu_to_je32(mtd_crc32(0, &ref, sizeof(struct jffs2_unknown_node) - 4));
ref.ino = cpu_to_je32(e->ino);
ref.xid = cpu_to_je32(xe->xid);
ref.xseqno = cpu_to_je32(highest_xseqno += 2);
- ref.node_crc = cpu_to_je32(crc32(0, &ref, sizeof(ref) - 4));
+ ref.node_crc = cpu_to_je32(mtd_crc32(0, &ref, sizeof(ref) - 4));
pad_block_if_less_than(sizeof(ref));
full_write(out_fd, &ref, sizeof(ref));
@@ -1423,7 +1420,7 @@ static void create_target_filesystem(struct filesystem_entry *root)
cleanmarker.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
cleanmarker.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER);
cleanmarker.totlen = cpu_to_je32(cleanmarker_size);
- cleanmarker.hdr_crc = cpu_to_je32(crc32(0, &cleanmarker, sizeof(struct jffs2_unknown_node)-4));
+ cleanmarker.hdr_crc = cpu_to_je32(mtd_crc32(0, &cleanmarker, sizeof(struct jffs2_unknown_node)-4));
if (ino == 0)
ino = 1;
diff --git a/mkfs.ubifs/compr.c b/mkfs.ubifs/compr.c
index 7f084c5..4152b6a 100644
--- a/mkfs.ubifs/compr.c
+++ b/mkfs.ubifs/compr.c
@@ -29,6 +29,7 @@
#define crc32 __zlib_crc32
#include <zlib.h>
+#undef crc32
#include "compr.h"
#include "ubifs-media.h"
--
1.7.1