| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 3 Oct 2011 13:55:37 +0900
From: Namjae Jeon <linkinjeon@...il.com>
To: jack@...e.cz
Cc: linux-kernel@...r.kernel.org, Namjae Jeon <linkinjeon@...il.com>
Subject: [PATCH 1/2] udf : enable error print in udf_read_tagged().
While reading metadata, if a problem occurs,
Print out only one of the five case.(It also does not show a checksum properly.)
Because currently it have been disable by undef udf_debug.
If there is a problem with scratched disc or loader, the user needs to know which error happened.
And I use pr_fmt instead of printk by joe's suggestion. I try to modify totally it to pr_fmt also.
Signed-off-by: Namjae Jeon <linkinjeon@...il.com>
---
fs/udf/directory.c | 4 ++--
fs/udf/inode.c | 14 +++++++-------
fs/udf/misc.c | 17 ++++++++++-------
fs/udf/super.c | 2 +-
fs/udf/truncate.c | 5 ++---
fs/udf/udfdecl.h | 6 ++++--
fs/udf/udftime.c | 2 +-
fs/udf/unicode.c | 6 +++---
8 files changed, 30 insertions(+), 26 deletions(-)
diff --git a/fs/udf/directory.c b/fs/udf/directory.c
index 2ffdb67..a4caf7a 100644
--- a/fs/udf/directory.c
+++ b/fs/udf/directory.c
@@ -201,7 +201,7 @@ struct short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, uint32_t *offs
struct short_ad *sa;
if ((!ptr) || (!offset)) {
- printk(KERN_ERR "udf: udf_get_fileshortad() invalidparms\n");
+ pr_err("udf_get_fileshortad() invalidparms\n");
return NULL;
}
@@ -223,7 +223,7 @@ struct long_ad *udf_get_filelongad(uint8_t *ptr, int maxoffset, uint32_t *offset
struct long_ad *la;
if ((!ptr) || (!offset)) {
- printk(KERN_ERR "udf: udf_get_filelongad() invalidparms\n");
+ pr_err("udf_get_filelongad() invalidparms\n");
return NULL;
}
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 1d1358e..58665ce 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -83,7 +83,7 @@ void udf_evict_inode(struct inode *inode)
end_writeback(inode);
if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB &&
inode->i_size != iinfo->i_lenExtents) {
- printk(KERN_WARNING "UDF-fs (%s): Inode %lu (mode %o) has "
+ pr_warn("(%s): Inode %lu (mode %o) has "
"inode size %llu different from extent length %llu. "
"Filesystem need not be standards compliant.\n",
inode->i_sb->s_id, inode->i_ino, inode->i_mode,
@@ -1169,7 +1169,7 @@ static void __udf_read_inode(struct inode *inode)
*/
bh = udf_read_ptagged(inode->i_sb, &iinfo->i_location, 0, &ident);
if (!bh) {
- printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed !bh\n",
+ pr_err("udf_read_inode(ino %ld) failed !bh\n",
inode->i_ino);
make_bad_inode(inode);
return;
@@ -1177,7 +1177,7 @@ static void __udf_read_inode(struct inode *inode)
if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
ident != TAG_IDENT_USE) {
- printk(KERN_ERR "udf: udf_read_inode(ino %ld) "
+ pr_err("udf_read_inode(ino %ld) "
"failed ident=%d\n", inode->i_ino, ident);
brelse(bh);
make_bad_inode(inode);
@@ -1218,7 +1218,7 @@ static void __udf_read_inode(struct inode *inode)
}
brelse(ibh);
} else if (fe->icbTag.strategyType != cpu_to_le16(4)) {
- printk(KERN_ERR "udf: unsupported strategy type: %d\n",
+ pr_err("unsupported strategy type: %d\n",
le16_to_cpu(fe->icbTag.strategyType));
brelse(bh);
make_bad_inode(inode);
@@ -1413,7 +1413,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
udf_debug("METADATA BITMAP FILE-----\n");
break;
default:
- printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown "
+ pr_err("udf_fill_inode(ino %ld) failed unknown "
"file type=%d\n", inode->i_ino,
fe->icbTag.fileType);
make_bad_inode(inode);
@@ -1438,7 +1438,7 @@ static int udf_alloc_i_data(struct inode *inode, size_t size)
iinfo->i_ext.i_data = kmalloc(size, GFP_KERNEL);
if (!iinfo->i_ext.i_data) {
- printk(KERN_ERR "udf:udf_alloc_i_data (ino %ld) "
+ pr_err("udf_alloc_i_data (ino %ld) "
"no free memory\n", inode->i_ino);
return -ENOMEM;
}
@@ -1689,7 +1689,7 @@ out:
if (do_sync) {
sync_dirty_buffer(bh);
if (buffer_write_io_error(bh)) {
- printk(KERN_WARNING "IO error syncing udf inode "
+ pr_warn("IO error syncing udf inode "
"[%s:%08lx]\n", inode->i_sb->s_id,
inode->i_ino);
err = -EIO;
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index 9215700..4f0345e 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -204,6 +204,7 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
{
struct tag *tag_p;
struct buffer_head *bh = NULL;
+ u8 checksum;
/* Read the block */
if (block == 0xFFFFFFFF)
@@ -211,7 +212,7 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
bh = udf_tread(sb, block);
if (!bh) {
- udf_debug("block=%d, location=%d: read failed\n",
+ pr_err("block=%d, location=%d: read failed\n",
block, location);
return NULL;
}
@@ -221,22 +222,24 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
*ident = le16_to_cpu(tag_p->tagIdent);
if (location != le32_to_cpu(tag_p->tagLocation)) {
- udf_debug("location mismatch block %u, tag %u != %u\n",
+ pr_err("location mismatch block %u, tag %u != %u\n",
block, le32_to_cpu(tag_p->tagLocation), location);
goto error_out;
}
/* Verify the tag checksum */
- if (udf_tag_checksum(tag_p) != tag_p->tagChecksum) {
- printk(KERN_ERR "udf: tag checksum failed block %d\n", block);
+ checksum = udf_tag_checksum(tag_p);
+ if (checksum != tag_p->tagChecksum) {
+ pr_err("tag checksum failed block %d, checksum 0x%02x != 0x%02x\n",
+ block, checksum, tag_p->tagChecksum);
goto error_out;
}
/* Verify the tag version */
if (tag_p->descVersion != cpu_to_le16(0x0002U) &&
tag_p->descVersion != cpu_to_le16(0x0003U)) {
- udf_debug("tag version 0x%04x != 0x0002 || 0x0003 block %d\n",
- le16_to_cpu(tag_p->descVersion), block);
+ pr_err("tag version 0x%04x != 0x0002 || 0x0003 block %d\n",
+ le16_to_cpu(tag_p->descVersion), block);
goto error_out;
}
@@ -247,7 +250,7 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
le16_to_cpu(tag_p->descCRCLength)))
return bh;
- udf_debug("Crc failure block %d: crc = %d, crclen = %d\n", block,
+ pr_err("Crc failure block %d: crc = %d, crclen = %d\n", block,
le16_to_cpu(tag_p->descCRC), le16_to_cpu(tag_p->descCRCLength));
error_out:
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 7b27b06..bbf6256 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -550,7 +550,7 @@ static int udf_parse_options(char *options, struct udf_options *uopt,
uopt->dmode = option & 0777;
break;
default:
- printk(KERN_ERR "udf: bad mount option \"%s\" "
+ pr_err("bad mount option \"%s\" "
"or missing value\n", p);
return 0;
}
diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c
index 8424308..65c11cd 100644
--- a/fs/udf/truncate.c
+++ b/fs/udf/truncate.c
@@ -95,8 +95,7 @@ void udf_truncate_tail_extent(struct inode *inode)
lbcount += elen;
if (lbcount > inode->i_size) {
if (lbcount - inode->i_size >= inode->i_sb->s_blocksize)
- printk(KERN_WARNING
- "udf_truncate_tail_extent(): Too long "
+ pr_warn("udf_truncate_tail_extent(): Too long "
"extent after EOF in inode %u: i_size: "
"%Ld lbcount: %Ld extent %u+%u\n",
(unsigned)inode->i_ino,
@@ -109,7 +108,7 @@ void udf_truncate_tail_extent(struct inode *inode)
extent_trunc(inode, &epos, &eloc, etype, elen, nelen);
epos.offset += adsize;
if (udf_next_aext(inode, &epos, &eloc, &elen, 1) != -1)
- printk(KERN_ERR "udf_truncate_tail_extent(): "
+ pr_err("udf_truncate_tail_extent(): "
"Extent after EOF in inode %u.\n",
(unsigned)inode->i_ino);
break;
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index dbd52d4b..e625ae7 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -1,6 +1,8 @@
#ifndef __UDF_DECL_H
#define __UDF_DECL_H
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include "ecma_167.h"
#include "osta_udf.h"
@@ -21,7 +23,7 @@
#ifdef UDFFS_DEBUG
#define udf_debug(f, a...) \
do { \
- printk(KERN_DEBUG "UDF-fs DEBUG %s:%d:%s: ", \
+ pr_debug("DEBUG %s:%d:%s: ", \
__FILE__, __LINE__, __func__); \
printk(f, ##a); \
} while (0)
@@ -30,7 +32,7 @@ do { \
#endif
#define udf_info(f, a...) \
- printk(KERN_INFO "UDF-fs INFO " f, ##a);
+ pr_info("INFO " f, ##a);
#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c
index b8c828c..927c931 100644
--- a/fs/udf/udftime.c
+++ b/fs/udf/udftime.c
@@ -34,9 +34,9 @@
* http://www.boulder.nist.gov/timefreq/pubs/bulletin/leapsecond.htm
*/
+#include "udfdecl.h"
#include <linux/types.h>
#include <linux/kernel.h>
-#include "udfdecl.h"
#define EPOCH_YEAR 1970
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index d03a90b..9455dc7 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -114,7 +114,7 @@ int udf_CS0toUTF8(struct ustr *utf_o, const struct ustr *ocu_i)
cmp_id = ocu_i->u_cmpID;
if (cmp_id != 8 && cmp_id != 16) {
memset(utf_o, 0, sizeof(struct ustr));
- printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n",
+ pr_err("unknown compression code (%d) stri=%s\n",
cmp_id, ocu_i->u_name);
return 0;
}
@@ -242,7 +242,7 @@ try_again:
if (utf_cnt) {
error_out:
ocu[++u_len] = '?';
- printk(KERN_DEBUG "udf: bad UTF-8 character\n");
+ pr_debug("bad UTF-8 character\n");
}
ocu[length - 1] = (uint8_t)u_len + 1;
@@ -267,7 +267,7 @@ static int udf_CS0toNLS(struct nls_table *nls, struct ustr *utf_o,
cmp_id = ocu_i->u_cmpID;
if (cmp_id != 8 && cmp_id != 16) {
memset(utf_o, 0, sizeof(struct ustr));
- printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n",
+ pr_err("unknown compression code (%d) stri=%s\n",
cmp_id, ocu_i->u_name);
return 0;
}
--
1.7.4.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists