| 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
| ||
|
Message-Id: <1424375168-11012-1-git-send-email-fabf@skynet.be>
Date: Thu, 19 Feb 2015 20:46:05 +0100
From: Fabian Frederick <fabf@...net.be>
To: linux-kernel@...r.kernel.org
Cc: Fabian Frederick <fabf@...net.be>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 1/4 linux-next] FS/AFFS: use AFFS_MOUNT prefix for mount options
Currently, affs still uses direct access on mount_options.
This patch prepares to affs_clear/set/test_opt() like other filesystems.
Cc: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
fs/affs/affs.h | 24 ++++++++++++------------
fs/affs/amigaffs.c | 2 +-
fs/affs/file.c | 2 +-
fs/affs/inode.c | 32 ++++++++++++++++++--------------
fs/affs/namei.c | 6 ++++--
fs/affs/super.c | 36 ++++++++++++++++++------------------
6 files changed, 54 insertions(+), 48 deletions(-)
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index c8764bd..35a855a 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -106,18 +106,18 @@ struct affs_sb_info {
spinlock_t work_lock; /* protects sb_work and work_queued */
};
-#define SF_INTL 0x0001 /* International filesystem. */
-#define SF_BM_VALID 0x0002 /* Bitmap is valid. */
-#define SF_IMMUTABLE 0x0004 /* Protection bits cannot be changed */
-#define SF_QUIET 0x0008 /* chmod errors will be not reported */
-#define SF_SETUID 0x0010 /* Ignore Amiga uid */
-#define SF_SETGID 0x0020 /* Ignore Amiga gid */
-#define SF_SETMODE 0x0040 /* Ignore Amiga protection bits */
-#define SF_MUFS 0x0100 /* Use MUFS uid/gid mapping */
-#define SF_OFS 0x0200 /* Old filesystem */
-#define SF_PREFIX 0x0400 /* Buffer for prefix is allocated */
-#define SF_VERBOSE 0x0800 /* Talk about fs when mounting */
-#define SF_NO_TRUNCATE 0x1000 /* Don't truncate filenames */
+#define AFFS_MOUNT_SF_INTL 0x0001 /* International filesystem. */
+#define AFFS_MOUNT_SF_BM_VALID 0x0002 /* Bitmap is valid. */
+#define AFFS_MOUNT_SF_IMMUTABLE 0x0004 /* Protection bits cannot be changed */
+#define AFFS_MOUNT_SF_QUIET 0x0008 /* chmod errors will be not reported */
+#define AFFS_MOUNT_SF_SETUID 0x0010 /* Ignore Amiga uid */
+#define AFFS_MOUNT_SF_SETGID 0x0020 /* Ignore Amiga gid */
+#define AFFS_MOUNT_SF_SETMODE 0x0040 /* Ignore Amiga protection bits */
+#define AFFS_MOUNT_SF_MUFS 0x0100 /* Use MUFS uid/gid mapping */
+#define AFFS_MOUNT_SF_OFS 0x0200 /* Old filesystem */
+#define AFFS_MOUNT_SF_PREFIX 0x0400 /* Buffer for prefix is allocated */
+#define AFFS_MOUNT_SF_VERBOSE 0x0800 /* Talk about fs when mounting */
+#define AFFS_MOUNT_SF_NO_TRUNCATE 0x1000 /* Don't truncate filenames */
/* short cut to get to the affs specific sb data */
static inline struct affs_sb_info *AFFS_SB(struct super_block *sb)
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index 388da1e..1a90e19 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -472,7 +472,7 @@ bool
affs_nofilenametruncate(const struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- return AFFS_SB(inode->i_sb)->s_flags & SF_NO_TRUNCATE;
+ return AFFS_SB(inode->i_sb)->s_flags & AFFS_MOUNT_SF_NO_TRUNCATE;
}
diff --git a/fs/affs/file.c b/fs/affs/file.c
index d2468bf..7b86033 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -910,7 +910,7 @@ affs_truncate(struct inode *inode)
if (inode->i_size) {
AFFS_I(inode)->i_blkcnt = last_blk + 1;
AFFS_I(inode)->i_extcnt = ext + 1;
- if (AFFS_SB(sb)->s_flags & SF_OFS) {
+ if (AFFS_SB(sb)->s_flags & AFFS_MOUNT_SF_OFS) {
struct buffer_head *bh = affs_bread_ino(inode, last_blk, 0);
u32 tmp;
if (IS_ERR(bh)) {
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index 6f34510..53af66b 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -66,23 +66,23 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
AFFS_I(inode)->i_lastalloc = 0;
AFFS_I(inode)->i_pa_cnt = 0;
- if (sbi->s_flags & SF_SETMODE)
+ if (sbi->s_flags & AFFS_MOUNT_SF_SETMODE)
inode->i_mode = sbi->s_mode;
else
inode->i_mode = prot_to_mode(prot);
id = be16_to_cpu(tail->uid);
- if (id == 0 || sbi->s_flags & SF_SETUID)
+ if (id == 0 || sbi->s_flags & AFFS_MOUNT_SF_SETUID)
inode->i_uid = sbi->s_uid;
- else if (id == 0xFFFF && sbi->s_flags & SF_MUFS)
+ else if (id == 0xFFFF && sbi->s_flags & AFFS_MOUNT_SF_MUFS)
i_uid_write(inode, 0);
else
i_uid_write(inode, id);
id = be16_to_cpu(tail->gid);
- if (id == 0 || sbi->s_flags & SF_SETGID)
+ if (id == 0 || sbi->s_flags & AFFS_MOUNT_SF_SETGID)
inode->i_gid = sbi->s_gid;
- else if (id == 0xFFFF && sbi->s_flags & SF_MUFS)
+ else if (id == 0xFFFF && sbi->s_flags & AFFS_MOUNT_SF_MUFS)
i_gid_write(inode, 0);
else
i_gid_write(inode, id);
@@ -94,7 +94,7 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
/* fall through */
case ST_USERDIR:
if (be32_to_cpu(tail->stype) == ST_USERDIR ||
- sbi->s_flags & SF_SETMODE) {
+ sbi->s_flags & AFFS_MOUNT_SF_SETMODE) {
if (inode->i_mode & S_IRUSR)
inode->i_mode |= S_IXUSR;
if (inode->i_mode & S_IRGRP)
@@ -133,7 +133,8 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
}
if (tail->link_chain)
set_nlink(inode, 2);
- inode->i_mapping->a_ops = (sbi->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
+ inode->i_mapping->a_ops = (sbi->s_flags & AFFS_MOUNT_SF_OFS) ?
+ &affs_aops_ofs : &affs_aops;
inode->i_op = &affs_file_inode_operations;
inode->i_fop = &affs_file_operations;
break;
@@ -190,15 +191,15 @@ affs_write_inode(struct inode *inode, struct writeback_control *wbc)
if (!(inode->i_ino == AFFS_SB(sb)->s_root_block)) {
uid = i_uid_read(inode);
gid = i_gid_read(inode);
- if (AFFS_SB(sb)->s_flags & SF_MUFS) {
+ if (AFFS_SB(sb)->s_flags & AFFS_MOUNT_SF_MUFS) {
if (uid == 0 || uid == 0xFFFF)
uid = uid ^ ~0;
if (gid == 0 || gid == 0xFFFF)
gid = gid ^ ~0;
}
- if (!(AFFS_SB(sb)->s_flags & SF_SETUID))
+ if (!(AFFS_SB(sb)->s_flags & AFFS_MOUNT_SF_SETUID))
tail->uid = cpu_to_be16(uid);
- if (!(AFFS_SB(sb)->s_flags & SF_SETGID))
+ if (!(AFFS_SB(sb)->s_flags & AFFS_MOUNT_SF_SETGID))
tail->gid = cpu_to_be16(gid);
}
}
@@ -221,11 +222,14 @@ affs_notify_change(struct dentry *dentry, struct iattr *attr)
if (error)
goto out;
- if (((attr->ia_valid & ATTR_UID) && (AFFS_SB(inode->i_sb)->s_flags & SF_SETUID)) ||
- ((attr->ia_valid & ATTR_GID) && (AFFS_SB(inode->i_sb)->s_flags & SF_SETGID)) ||
+ if (((attr->ia_valid & ATTR_UID) &&
+ (AFFS_SB(inode->i_sb)->s_flags & AFFS_MOUNT_SF_SETUID)) ||
+ ((attr->ia_valid & ATTR_GID) &&
+ (AFFS_SB(inode->i_sb)->s_flags & AFFS_MOUNT_SF_SETGID)) ||
((attr->ia_valid & ATTR_MODE) &&
- (AFFS_SB(inode->i_sb)->s_flags & (SF_SETMODE | SF_IMMUTABLE)))) {
- if (!(AFFS_SB(inode->i_sb)->s_flags & SF_QUIET))
+ (AFFS_SB(inode->i_sb)->s_flags &
+ (AFFS_MOUNT_SF_SETMODE | AFFS_MOUNT_SF_IMMUTABLE)))) {
+ if (!(AFFS_SB(inode->i_sb)->s_flags & AFFS_MOUNT_SF_QUIET))
error = -EPERM;
goto out;
}
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index ffb7bd8..aaa81ab 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -53,7 +53,8 @@ affs_intl_toupper(int ch)
static inline toupper_t
affs_get_toupper(struct super_block *sb)
{
- return AFFS_SB(sb)->s_flags & SF_INTL ? affs_intl_toupper : affs_toupper;
+ return AFFS_SB(sb)->s_flags & AFFS_MOUNT_SF_INTL ?
+ affs_intl_toupper : affs_toupper;
}
/*
@@ -275,7 +276,8 @@ affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl)
inode->i_op = &affs_file_inode_operations;
inode->i_fop = &affs_file_operations;
- inode->i_mapping->a_ops = (AFFS_SB(sb)->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
+ inode->i_mapping->a_ops = (AFFS_SB(sb)->s_flags & AFFS_MOUNT_SF_OFS) ?
+ &affs_aops_ofs : &affs_aops;
error = affs_add_entry(dir, inode, dentry, ST_FILE);
if (error) {
clear_nlink(inode);
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 4cf0e91..5623b49 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -227,22 +227,22 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
if (match_octal(&args[0], &option))
return 0;
*mode = option & 0777;
- *mount_opts |= SF_SETMODE;
+ *mount_opts |= AFFS_MOUNT_SF_SETMODE;
break;
case Opt_mufs:
- *mount_opts |= SF_MUFS;
+ *mount_opts |= AFFS_MOUNT_SF_MUFS;
break;
case Opt_notruncate:
- *mount_opts |= SF_NO_TRUNCATE;
+ *mount_opts |= AFFS_MOUNT_SF_NO_TRUNCATE;
break;
case Opt_prefix:
*prefix = match_strdup(&args[0]);
if (!*prefix)
return 0;
- *mount_opts |= SF_PREFIX;
+ *mount_opts |= AFFS_MOUNT_SF_PREFIX;
break;
case Opt_protect:
- *mount_opts |= SF_IMMUTABLE;
+ *mount_opts |= AFFS_MOUNT_SF_IMMUTABLE;
break;
case Opt_reserved:
if (match_int(&args[0], reserved))
@@ -258,7 +258,7 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
*gid = make_kgid(current_user_ns(), option);
if (!gid_valid(*gid))
return 0;
- *mount_opts |= SF_SETGID;
+ *mount_opts |= AFFS_MOUNT_SF_SETGID;
break;
case Opt_setuid:
if (match_int(&args[0], &option))
@@ -266,10 +266,10 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
*uid = make_kuid(current_user_ns(), option);
if (!uid_valid(*uid))
return 0;
- *mount_opts |= SF_SETUID;
+ *mount_opts |= AFFS_MOUNT_SF_SETUID;
break;
case Opt_verbose:
- *mount_opts |= SF_VERBOSE;
+ *mount_opts |= AFFS_MOUNT_SF_VERBOSE;
break;
case Opt_volume: {
char *vol = match_strdup(&args[0]);
@@ -435,30 +435,30 @@ got_root:
case MUFS_FS:
case MUFS_INTLFFS:
case MUFS_DCFFS:
- sbi->s_flags |= SF_MUFS;
+ sbi->s_flags |= AFFS_MOUNT_SF_MUFS;
/* fall thru */
case FS_INTLFFS:
case FS_DCFFS:
- sbi->s_flags |= SF_INTL;
+ sbi->s_flags |= AFFS_MOUNT_SF_INTL;
break;
case MUFS_FFS:
- sbi->s_flags |= SF_MUFS;
+ sbi->s_flags |= AFFS_MOUNT_SF_MUFS;
break;
case FS_FFS:
break;
case MUFS_OFS:
- sbi->s_flags |= SF_MUFS;
+ sbi->s_flags |= AFFS_MOUNT_SF_MUFS;
/* fall thru */
case FS_OFS:
- sbi->s_flags |= SF_OFS;
+ sbi->s_flags |= AFFS_MOUNT_SF_OFS;
sb->s_flags |= MS_NOEXEC;
break;
case MUFS_DCOFS:
case MUFS_INTLOFS:
- sbi->s_flags |= SF_MUFS;
+ sbi->s_flags |= AFFS_MOUNT_SF_MUFS;
case FS_DCOFS:
case FS_INTLOFS:
- sbi->s_flags |= SF_INTL | SF_OFS;
+ sbi->s_flags |= AFFS_MOUNT_SF_INTL | AFFS_MOUNT_SF_OFS;
sb->s_flags |= MS_NOEXEC;
break;
default:
@@ -467,7 +467,7 @@ got_root:
return -EINVAL;
}
- if (mount_flags & SF_VERBOSE) {
+ if (mount_flags & AFFS_MOUNT_SF_VERBOSE) {
u8 len = AFFS_ROOT_TAIL(sb, root_bh)->disk_name[0];
pr_notice("Mounting volume \"%.*s\": Type=%.3s\\%c, Blocksize=%d\n",
len > 31 ? 31 : len,
@@ -478,7 +478,7 @@ got_root:
sb->s_flags |= MS_NODEV | MS_NOSUID;
sbi->s_data_blksize = sb->s_blocksize;
- if (sbi->s_flags & SF_OFS)
+ if (sbi->s_flags & AFFS_MOUNT_SF_OFS)
sbi->s_data_blksize -= 24;
tmp_flags = sb->s_flags;
@@ -493,7 +493,7 @@ got_root:
if (IS_ERR(root_inode))
return PTR_ERR(root_inode);
- if (AFFS_SB(sb)->s_flags & SF_INTL)
+ if (AFFS_SB(sb)->s_flags & AFFS_MOUNT_SF_INTL)
sb->s_d_op = &affs_intl_dentry_operations;
else
sb->s_d_op = &affs_dentry_operations;
--
2.1.0
--
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