aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--fs/attr.c4
-rw-r--r--fs/ext2/acl.c2
-rw-r--r--fs/ext2/ioctl.c4
-rw-r--r--fs/ext3/acl.c2
-rw-r--r--fs/ext3/ioctl.c6
-rw-r--r--fs/ext4/acl.c2
-rw-r--r--fs/ext4/ioctl.c6
-rw-r--r--fs/fcntl.c2
-rw-r--r--fs/generic_acl.c2
-rw-r--r--fs/gfs2/acl.c2
-rw-r--r--fs/hfsplus/ioctl.c2
-rw-r--r--fs/jffs2/acl.c2
-rw-r--r--fs/jfs/ioctl.c2
-rw-r--r--fs/jfs/xattr.c2
-rw-r--r--fs/namei.c2
-rw-r--r--fs/ocfs2/ioctl.c2
-rw-r--r--fs/reiserfs/ioctl.c5
-rw-r--r--fs/reiserfs/xattr_acl.c2
-rw-r--r--fs/utimes.c2
-rw-r--r--fs/xattr.c3
-rw-r--r--include/linux/fs.h4
-rw-r--r--security/selinux/hooks.c2
22 files changed, 32 insertions, 30 deletions
diff --git a/fs/attr.c b/fs/attr.c
index a0a0c7b07ba..f8dfc2269d8 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -42,7 +42,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr)
/* Make sure a caller can chmod. */
if (ia_valid & ATTR_MODE) {
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
goto error;
/* Also check the setgid bit! */
if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid :
@@ -52,7 +52,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr)
/* Check for setting the inode time. */
if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
- if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
goto error;
}
fine:
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index 7c420b800c3..e58669e1b87 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -464,7 +464,7 @@ ext2_xattr_set_acl(struct inode *inode, int type, const void *value,
if (!test_opt(inode->i_sb, POSIX_ACL))
return -EOPNOTSUPP;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (value) {
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index e85c4821823..3bcd25422ee 100644
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -36,7 +36,7 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
if (IS_RDONLY(inode))
return -EROFS;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EACCES;
if (get_user(flags, (int __user *) arg))
@@ -74,7 +74,7 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
case EXT2_IOC_GETVERSION:
return put_user(inode->i_generation, (int __user *) arg);
case EXT2_IOC_SETVERSION:
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (IS_RDONLY(inode))
return -EROFS;
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index 1e5038d9a01..d34e9967430 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -489,7 +489,7 @@ ext3_xattr_set_acl(struct inode *inode, int type, const void *value,
if (!test_opt(inode->i_sb, POSIX_ACL))
return -EOPNOTSUPP;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (value) {
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
index 965006dba6b..4a2a02c95bf 100644
--- a/fs/ext3/ioctl.c
+++ b/fs/ext3/ioctl.c
@@ -41,7 +41,7 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
if (IS_RDONLY(inode))
return -EROFS;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EACCES;
if (get_user(flags, (int __user *) arg))
@@ -122,7 +122,7 @@ flags_err:
__u32 generation;
int err;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (IS_RDONLY(inode))
return -EROFS;
@@ -181,7 +181,7 @@ flags_err:
if (IS_RDONLY(inode))
return -EROFS;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EACCES;
if (get_user(rsv_window_size, (int __user *)arg))
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 9e882546d91..a8bae8cd1d5 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -489,7 +489,7 @@ ext4_xattr_set_acl(struct inode *inode, int type, const void *value,
if (!test_opt(inode->i_sb, POSIX_ACL))
return -EOPNOTSUPP;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (value) {
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 500567dd53b..7b4aa4543c8 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -40,7 +40,7 @@ int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
if (IS_RDONLY(inode))
return -EROFS;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EACCES;
if (get_user(flags, (int __user *) arg))
@@ -121,7 +121,7 @@ flags_err:
__u32 generation;
int err;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (IS_RDONLY(inode))
return -EROFS;
@@ -180,7 +180,7 @@ flags_err:
if (IS_RDONLY(inode))
return -EROFS;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EACCES;
if (get_user(rsv_window_size, (int __user *)arg))
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 8e382a5d51b..3f22e9f4f69 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -215,7 +215,7 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
/* O_NOATIME can only be set by the owner or superuser */
if ((arg & O_NOATIME) && !(filp->f_flags & O_NOATIME))
- if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
/* required for strict SunOS emulation */
diff --git a/fs/generic_acl.c b/fs/generic_acl.c
index 9ccb7894717..995d63b2e74 100644
--- a/fs/generic_acl.c
+++ b/fs/generic_acl.c
@@ -78,7 +78,7 @@ generic_acl_set(struct inode *inode, struct generic_acl_operations *ops,
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
- if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (value) {
acl = posix_acl_from_xattr(value, size);
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 6e80844367e..1047a8c7226 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -74,7 +74,7 @@ int gfs2_acl_validate_remove(struct gfs2_inode *ip, int access)
{
if (!GFS2_SB(&ip->i_inode)->sd_args.ar_posix_acl)
return -EOPNOTSUPP;
- if (current->fsuid != ip->i_inode.i_uid && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(&ip->i_inode))
return -EPERM;
if (S_ISLNK(ip->i_inode.i_mode))
return -EOPNOTSUPP;
diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c
index 79fd10402ea..b60c0affbec 100644
--- a/fs/hfsplus/ioctl.c
+++ b/fs/hfsplus/ioctl.c
@@ -38,7 +38,7 @@ int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
if (IS_RDONLY(inode))
return -EROFS;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EACCES;
if (get_user(flags, (int __user *)arg))
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index a46101ee867..65b3a1b5b88 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -435,7 +435,7 @@ static int jffs2_acl_setxattr(struct inode *inode, int type, const void *value,
struct posix_acl *acl;
int rc;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (value) {
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index fe063af6fd2..3c8663bea98 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -69,7 +69,7 @@ int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd,
if (IS_RDONLY(inode))
return -EROFS;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EACCES;
if (get_user(flags, (int __user *) arg))
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index b2375f0774b..9b7f2cdaae0 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -697,7 +697,7 @@ static int can_set_system_xattr(struct inode *inode, const char *name,
struct posix_acl *acl;
int rc;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
/*
diff --git a/fs/namei.c b/fs/namei.c
index 5e2d98d10c5..defaa47c11d 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1576,7 +1576,7 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
/* O_NOATIME can only be set by the owner or superuser */
if (flag & O_NOATIME)
- if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
/*
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index bd68c3f2afb..87dcece7e1b 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -63,7 +63,7 @@ static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
goto bail_unlock;
status = -EACCES;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
goto bail_unlock;
if (!S_ISDIR(inode->i_mode))
diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c
index b484d2913c0..11a0fcc2d40 100644
--- a/fs/reiserfs/ioctl.c
+++ b/fs/reiserfs/ioctl.c
@@ -51,8 +51,7 @@ int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
if (IS_RDONLY(inode))
return -EROFS;
- if ((current->fsuid != inode->i_uid)
- && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (get_user(flags, (int __user *)arg))
@@ -81,7 +80,7 @@ int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
case REISERFS_IOC_GETVERSION:
return put_user(inode->i_generation, (int __user *)arg);
case REISERFS_IOC_SETVERSION:
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (IS_RDONLY(inode))
return -EROFS;
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 5296a29cc5e..b7e4fa4539d 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -21,7 +21,7 @@ xattr_set_acl(struct inode *inode, int type, const void *value, size_t size)
if (!reiserfs_posixacl(inode->i_sb))
return -EOPNOTSUPP;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
if (value) {
diff --git a/fs/utimes.c b/fs/utimes.c
index 83a7e69e706..682eb63b20a 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -106,7 +106,7 @@ long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags
if (IS_IMMUTABLE(inode))
goto dput_and_out;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) {
+ if (!is_owner_or_cap(inode)) {
if (f) {
if (!(f->f_mode & FMODE_WRITE))
goto dput_and_out;
diff --git a/fs/xattr.c b/fs/xattr.c
index 4523aca7965..a44fd92caca 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -60,8 +60,7 @@ xattr_permission(struct inode *inode, const char *name, int mask)
if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
return -EPERM;
if (S_ISDIR(inode->i_mode) && (inode->i_mode & S_ISVTX) &&
- (mask & MAY_WRITE) && (current->fsuid != inode->i_uid) &&
- !capable(CAP_FOWNER))
+ (mask & MAY_WRITE) && !is_owner_or_cap(inode))
return -EPERM;
}
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 58ce336d4a6..98205f68047 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -284,6 +284,7 @@ extern int dir_notify_enable;
#include <linux/pid.h>
#include <linux/mutex.h>
#include <linux/sysctl.h>
+#include <linux/capability.h>
#include <asm/atomic.h>
#include <asm/semaphore.h>
@@ -990,6 +991,9 @@ enum {
#define put_fs_excl() atomic_dec(&current->fs_excl)
#define has_fs_excl() atomic_read(&current->fs_excl)
+#define is_owner_or_cap(inode) \
+ ((current->fsuid == (inode)->i_uid) || capable(CAP_FOWNER))
+
/* not quite ready to be deprecated, but... */
extern void lock_super(struct super_block *);
extern void unlock_super(struct super_block *);
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 78c3f98fcdc..520b9998123 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2318,7 +2318,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, char *name, void *value
if (sbsec->behavior == SECURITY_FS_USE_MNTPOINT)
return -EOPNOTSUPP;
- if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+ if (!is_owner_or_cap(inode))
return -EPERM;
AVC_AUDIT_DATA_INIT(&ad,FS);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 01:36:33 +0000