From: jjohansen@suse.de
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org, Tony Jones <tonyj@suse.de>,
Andreas Gruenbacher <agruen@suse.de>,
John Johansen <jjohansen@suse.de>
Subject: [AppArmor 22/45] Pass struct vfsmount to the inode_setxattr LSM hook
Date: Thu, 25 Oct 2007 23:40:46 -0700 [thread overview]
Message-ID: <20071026064049.972815106@suse.de> (raw)
In-Reply-To: 20071026064024.243943043@suse.de
[-- Attachment #1: security-setxattr.diff --]
[-- Type: text/plain, Size: 8547 bytes --]
This is needed for computing pathnames in the AppArmor LSM.
Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: John Johansen <jjohansen@suse.de>
---
fs/xattr.c | 4 ++--
include/linux/security.h | 35 +++++++++++++++++++++--------------
security/commoncap.c | 4 ++--
security/dummy.c | 9 ++++++---
security/security.c | 15 +++++++++------
security/selinux/hooks.c | 8 ++++++--
6 files changed, 46 insertions(+), 29 deletions(-)
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -78,7 +78,7 @@ vfs_setxattr(struct dentry *dentry, stru
return error;
mutex_lock(&inode->i_mutex);
- error = security_inode_setxattr(dentry, name, value, size, flags);
+ error = security_inode_setxattr(dentry, mnt, name, value, size, flags);
if (error)
goto out;
error = -EOPNOTSUPP;
@@ -86,7 +86,7 @@ vfs_setxattr(struct dentry *dentry, stru
error = inode->i_op->setxattr(dentry, name, value, size, flags);
if (!error) {
fsnotify_xattr(dentry);
- security_inode_post_setxattr(dentry, name, value,
+ security_inode_post_setxattr(dentry, mnt, name, value,
size, flags);
}
} else if (!strncmp(name, XATTR_SECURITY_PREFIX,
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -56,7 +56,7 @@ extern void cap_capset_set (struct task_
extern int cap_bprm_set_security (struct linux_binprm *bprm);
extern void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe);
extern int cap_bprm_secureexec(struct linux_binprm *bprm);
-extern int cap_inode_setxattr(struct dentry *dentry, char *name, void *value, size_t size, int flags);
+extern int cap_inode_setxattr(struct dentry *dentry, struct vfsmount *mnt, char *name, void *value, size_t size, int flags);
extern int cap_inode_removexattr(struct dentry *dentry, char *name);
extern int cap_inode_need_killpriv(struct dentry *dentry);
extern int cap_inode_killpriv(struct dentry *dentry);
@@ -398,11 +398,11 @@ struct request_sock;
* inode.
* @inode_setxattr:
* Check permission before setting the extended attributes
- * @value identified by @name for @dentry.
+ * @value identified by @name for @dentry and @mnt.
* Return 0 if permission is granted.
* @inode_post_setxattr:
* Update inode security field after successful setxattr operation.
- * @value identified by @name for @dentry.
+ * @value identified by @name for @dentry and @mnt.
* @inode_getxattr:
* Check permission before obtaining the extended attributes
* identified by @name for @dentry.
@@ -1272,9 +1272,11 @@ struct security_operations {
struct iattr *attr);
int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
void (*inode_delete) (struct inode *inode);
- int (*inode_setxattr) (struct dentry *dentry, char *name, void *value,
- size_t size, int flags);
- void (*inode_post_setxattr) (struct dentry *dentry, char *name, void *value,
+ int (*inode_setxattr) (struct dentry *dentry, struct vfsmount *mnt,
+ char *name, void *value, size_t size, int flags);
+ void (*inode_post_setxattr) (struct dentry *dentry,
+ struct vfsmount *mnt,
+ char *name, void *value,
size_t size, int flags);
int (*inode_getxattr) (struct dentry *dentry, char *name);
int (*inode_listxattr) (struct dentry *dentry);
@@ -1534,10 +1536,11 @@ int security_inode_setattr(struct dentry
struct iattr *attr);
int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
void security_inode_delete(struct inode *inode);
-int security_inode_setxattr(struct dentry *dentry, char *name,
- void *value, size_t size, int flags);
-void security_inode_post_setxattr(struct dentry *dentry, char *name,
- void *value, size_t size, int flags);
+int security_inode_setxattr(struct dentry *dentry, struct vfsmount *mnt,
+ char *name, void *value, size_t size, int flags);
+void security_inode_post_setxattr(struct dentry *dentry, struct vfsmount *mnt,
+ char *name, void *value, size_t size,
+ int flags);
int security_inode_getxattr(struct dentry *dentry, char *name);
int security_inode_listxattr(struct dentry *dentry);
int security_inode_removexattr(struct dentry *dentry, char *name);
@@ -1924,14 +1927,18 @@ static inline int security_inode_getattr
static inline void security_inode_delete (struct inode *inode)
{ }
-static inline int security_inode_setxattr (struct dentry *dentry, char *name,
+static inline int security_inode_setxattr (struct dentry *dentry,
+ struct vfsmount *mnt, char *name,
void *value, size_t size, int flags)
{
- return cap_inode_setxattr(dentry, name, value, size, flags);
+ return cap_inode_setxattr(dentry, mnt, name, value, size, flags);
}
-static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
- void *value, size_t size, int flags)
+static inline void security_inode_post_setxattr (struct dentry *dentry,
+ struct vfsmount *mnt,
+ char *name,
+ void *value, size_t size,
+ int flags)
{ }
static inline int security_inode_getxattr (struct dentry *dentry, char *name)
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -361,8 +361,8 @@ int cap_bprm_secureexec (struct linux_bi
current->egid != current->gid);
}
-int cap_inode_setxattr(struct dentry *dentry, char *name, void *value,
- size_t size, int flags)
+int cap_inode_setxattr(struct dentry *dentry, struct vfsmount *mnt, char *name,
+ void *value, size_t size, int flags)
{
if (!strcmp(name, XATTR_NAME_CAPS)) {
if (!capable(CAP_SETFCAP))
--- a/security/dummy.c
+++ b/security/dummy.c
@@ -347,8 +347,9 @@ static void dummy_inode_delete (struct i
return;
}
-static int dummy_inode_setxattr (struct dentry *dentry, char *name, void *value,
- size_t size, int flags)
+static int dummy_inode_setxattr (struct dentry *dentry, struct vfsmount *mnt,
+ char *name, void *value, size_t size,
+ int flags)
{
if (!strncmp(name, XATTR_SECURITY_PREFIX,
sizeof(XATTR_SECURITY_PREFIX) - 1) &&
@@ -357,7 +358,9 @@ static int dummy_inode_setxattr (struct
return 0;
}
-static void dummy_inode_post_setxattr (struct dentry *dentry, char *name, void *value,
+static void dummy_inode_post_setxattr (struct dentry *dentry,
+ struct vfsmount *mnt,
+ char *name, void *value,
size_t size, int flags)
{
}
--- a/security/security.c
+++ b/security/security.c
@@ -441,20 +441,23 @@ void security_inode_delete(struct inode
security_ops->inode_delete(inode);
}
-int security_inode_setxattr(struct dentry *dentry, char *name,
- void *value, size_t size, int flags)
+int security_inode_setxattr(struct dentry *dentry, struct vfsmount *mnt,
+ char *name, void *value, size_t size, int flags)
{
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return 0;
- return security_ops->inode_setxattr(dentry, name, value, size, flags);
+ return security_ops->inode_setxattr(dentry, mnt, name, value, size,
+ flags);
}
-void security_inode_post_setxattr(struct dentry *dentry, char *name,
- void *value, size_t size, int flags)
+void security_inode_post_setxattr(struct dentry *dentry, struct vfsmount *mnt,
+ char *name, void *value, size_t size,
+ int flags)
{
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return;
- security_ops->inode_post_setxattr(dentry, name, value, size, flags);
+ security_ops->inode_post_setxattr(dentry, mnt, name, value, size,
+ flags);
}
int security_inode_getxattr(struct dentry *dentry, char *name)
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2332,7 +2332,9 @@ static int selinux_inode_setotherxattr(s
return dentry_has_perm(current, NULL, dentry, FILE__SETATTR);
}
-static int selinux_inode_setxattr(struct dentry *dentry, char *name, void *value, size_t size, int flags)
+static int selinux_inode_setxattr(struct dentry *dentry, struct vfsmount *mnt,
+ char *name, void *value, size_t size,
+ int flags)
{
struct task_security_struct *tsec = current->security;
struct inode *inode = dentry->d_inode;
@@ -2381,7 +2383,9 @@ static int selinux_inode_setxattr(struct
&ad);
}
-static void selinux_inode_post_setxattr(struct dentry *dentry, char *name,
+static void selinux_inode_post_setxattr(struct dentry *dentry,
+ struct vfsmount *mnt,
+ char *name,
void *value, size_t size, int flags)
{
struct inode *inode = dentry->d_inode;
--
next prev parent reply other threads:[~2007-10-26 7:05 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-26 6:40 [AppArmor 00/45] AppArmor security module overview jjohansen
2007-10-26 6:40 ` [AppArmor 01/45] Pass struct vfsmount to the inode_create LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 02/45] Pass struct path down to remove_suid and children jjohansen
2007-10-26 6:40 ` [AppArmor 03/45] Add a vfsmount parameter to notify_change() jjohansen
2007-10-26 6:40 ` [AppArmor 04/45] Pass struct vfsmount to the inode_setattr LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 05/45] Add struct vfsmount parameter to vfs_mkdir() jjohansen
2007-10-26 6:40 ` [AppArmor 06/45] Pass struct vfsmount to the inode_mkdir LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 07/45] Add a struct vfsmount parameter to vfs_mknod() jjohansen
2007-10-26 6:40 ` [AppArmor 08/45] Pass struct vfsmount to the inode_mknod LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 09/45] Add a struct vfsmount parameter to vfs_symlink() jjohansen
2007-10-26 6:40 ` [AppArmor 10/45] Pass struct vfsmount to the inode_symlink LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 11/45] Pass struct vfsmount to the inode_readlink " jjohansen
2007-10-26 6:40 ` [AppArmor 12/45] Add struct vfsmount parameters to vfs_link() jjohansen
2007-10-26 6:40 ` [AppArmor 13/45] Pass the struct vfsmounts to the inode_link LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 14/45] Add a struct vfsmount parameter to vfs_rmdir() jjohansen
2007-10-26 6:40 ` [AppArmor 15/45] Pass struct vfsmount to the inode_rmdir LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 16/45] Call lsm hook before unhashing dentry in vfs_rmdir() jjohansen
2007-10-26 6:40 ` [AppArmor 17/45] Add a struct vfsmount parameter to vfs_unlink() jjohansen
2007-10-26 6:40 ` [AppArmor 18/45] Pass struct vfsmount to the inode_unlink LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 19/45] Add struct vfsmount parameters to vfs_rename() jjohansen
2007-10-26 7:37 ` Al Viro
2007-10-26 18:23 ` John Johansen
2007-10-26 20:33 ` Al Viro
2007-10-26 6:40 ` [AppArmor 20/45] Pass struct vfsmount to the inode_rename LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 21/45] Add a struct vfsmount parameter to vfs_setxattr() jjohansen
2007-10-26 6:40 ` jjohansen [this message]
2007-10-26 6:40 ` [AppArmor 23/45] Add a struct vfsmount parameter to vfs_getxattr() jjohansen
2007-10-26 6:40 ` [AppArmor 24/45] Pass struct vfsmount to the inode_getxattr LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 25/45] Add a struct vfsmount parameter to vfs_listxattr() jjohansen
2007-10-26 6:40 ` [AppArmor 26/45] Pass struct vfsmount to the inode_listxattr LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 27/45] Add a struct vfsmount parameter to vfs_removexattr() jjohansen
2007-10-26 6:40 ` [AppArmor 28/45] Pass struct vfsmount to the inode_removexattr LSM hook jjohansen
2007-10-26 6:40 ` [AppArmor 29/45] Fix __d_path() for lazy unmounts and make it unambiguous jjohansen
2007-10-26 6:40 ` [AppArmor 30/45] Make d_path() consistent across mount operations jjohansen
2007-10-26 6:40 ` [AppArmor 31/45] Add d_namespace_path() to compute namespace relative pathnames jjohansen
2007-10-26 6:40 ` [AppArmor 32/45] Enable LSM hooks to distinguish operations on file descriptors from operations on pathnames jjohansen
2007-10-26 11:30 ` Miklos Szeredi
2007-10-26 11:45 ` Miklos Szeredi
2007-10-26 18:49 ` John Johansen
2007-10-26 20:24 ` Andreas Gruenbacher
2007-10-26 20:58 ` Miklos Szeredi
2007-10-26 21:56 ` Andreas Gruenbacher
2007-10-26 6:40 ` [AppArmor 33/45] Pass struct file down the inode_*xattr security LSM hooks jjohansen
2007-10-26 6:40 ` [AppArmor 34/45] Factor out sysctl pathname code jjohansen
2007-10-26 9:24 ` James Morris
2007-10-26 6:40 ` [AppArmor 35/45] Allow permission functions to tell between parent and leaf checks jjohansen
2007-10-26 12:32 ` Stephen Smalley
2007-10-26 18:26 ` John Johansen
2007-10-26 6:41 ` [AppArmor 36/45] Export audit subsystem for use by modules jjohansen
2007-10-26 6:41 ` [AppArmor 37/45] AppArmor: Main Part jjohansen
2007-10-26 6:41 ` [AppArmor 38/45] AppArmor: Module and LSM hooks jjohansen
2007-10-26 6:41 ` [AppArmor 39/45] AppArmor: Profile loading and manipulation, pathname matching jjohansen
2007-10-26 6:41 ` [AppArmor 40/45] AppArmor: all the rest jjohansen
2007-10-26 6:41 ` [AppArmor 41/45] add simple network toggles to apparmor jjohansen
2007-10-26 6:41 ` [AppArmor 42/45] Add AppArmor LSM to security/Makefile jjohansen
2007-10-26 6:41 ` [AppArmor 43/45] Switch to vfs_permission() in do_path_lookup() jjohansen
2007-10-26 6:41 ` [AppArmor 44/45] Switch to vfs_permission() in sys_fchdir() jjohansen
2007-10-26 6:41 ` [AppArmor 45/45] Fix file_permission() jjohansen
2007-10-26 7:04 ` [AppArmor 00/45] AppArmor security module overview John Johansen
2007-10-26 14:37 ` Arjan van de Ven
2007-10-26 18:34 ` John Johansen
2007-10-26 20:15 ` Arjan van de Ven
2007-10-26 20:44 ` Andreas Gruenbacher
2007-10-26 21:13 ` Arjan van de Ven
2007-10-26 21:24 ` Andreas Gruenbacher
2007-10-26 22:16 ` Crispin Cowan
2007-10-26 22:23 ` Arjan van de Ven
2007-10-27 20:47 ` Christoph Hellwig
2007-10-28 14:25 ` Andreas Gruenbacher
-- strict thread matches above, loose matches on Subject: below --
2007-05-14 11:06 jjohansen
2007-05-14 11:06 ` [AppArmor 22/45] Pass struct vfsmount to the inode_setxattr LSM hook jjohansen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20071026064049.972815106@suse.de \
--to=jjohansen@suse.de \
--cc=agruen@suse.de \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=tonyj@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).