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Date: Wed, 11 Jul 2018 03:21:36 +0100
From: Al Viro <viro@...IV.linux.org.uk>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
Miklos Szeredi <mszeredi@...hat.com>
Subject: [RFC][PATCH 12/42] ->file_open(): lose cred argument
From: Al Viro <viro@...iv.linux.org.uk>
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
include/linux/lsm_hooks.h | 2 +-
security/apparmor/lsm.c | 4 ++--
security/security.c | 2 +-
security/selinux/hooks.c | 4 ++--
security/smack/smack_lsm.c | 6 +++---
security/tomoyo/tomoyo.c | 2 +-
6 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 8f1131c8dd54..a8ee106b865d 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1569,7 +1569,7 @@ union security_list_options {
int (*file_send_sigiotask)(struct task_struct *tsk,
struct fown_struct *fown, int sig);
int (*file_receive)(struct file *file);
- int (*file_open)(struct file *file, const struct cred *cred);
+ int (*file_open)(struct file *file);
int (*task_alloc)(struct task_struct *task, unsigned long clone_flags);
void (*task_free)(struct task_struct *task);
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 74f17376202b..8b8b70620bbe 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -395,7 +395,7 @@ static int apparmor_inode_getattr(const struct path *path)
return common_perm_cond(OP_GETATTR, path, AA_MAY_GETATTR);
}
-static int apparmor_file_open(struct file *file, const struct cred *cred)
+static int apparmor_file_open(struct file *file)
{
struct aa_file_ctx *fctx = file_ctx(file);
struct aa_label *label;
@@ -414,7 +414,7 @@ static int apparmor_file_open(struct file *file, const struct cred *cred)
return 0;
}
- label = aa_get_newest_cred_label(cred);
+ label = aa_get_newest_cred_label(file->f_cred);
if (!unconfined(label)) {
struct inode *inode = file_inode(file);
struct path_cond cond = { inode->i_uid, inode->i_mode };
diff --git a/security/security.c b/security/security.c
index 235b35f58a65..5dce67070cdf 100644
--- a/security/security.c
+++ b/security/security.c
@@ -974,7 +974,7 @@ int security_file_open(struct file *file)
{
int ret;
- ret = call_int_hook(file_open, 0, file, file->f_cred);
+ ret = call_int_hook(file_open, 0, file);
if (ret)
return ret;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 2b5ee5fbd652..18006be15713 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3862,7 +3862,7 @@ static int selinux_file_receive(struct file *file)
return file_has_perm(cred, file, file_to_av(file));
}
-static int selinux_file_open(struct file *file, const struct cred *cred)
+static int selinux_file_open(struct file *file)
{
struct file_security_struct *fsec;
struct inode_security_struct *isec;
@@ -3886,7 +3886,7 @@ static int selinux_file_open(struct file *file, const struct cred *cred)
* new inode label or new policy.
* This check is not redundant - do not remove.
*/
- return file_path_has_perm(cred, file, open_file_to_av(file));
+ return file_path_has_perm(file->f_cred, file, open_file_to_av(file));
}
/* task security operations */
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 7ad226018f51..e7b6c012431d 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1927,9 +1927,9 @@ static int smack_file_receive(struct file *file)
*
* Returns 0
*/
-static int smack_file_open(struct file *file, const struct cred *cred)
+static int smack_file_open(struct file *file)
{
- struct task_smack *tsp = cred->security;
+ struct task_smack *tsp = file->f_cred->security;
struct inode *inode = file_inode(file);
struct smk_audit_info ad;
int rc;
@@ -1937,7 +1937,7 @@ static int smack_file_open(struct file *file, const struct cred *cred)
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
smk_ad_setfield_u_fs_path(&ad, file->f_path);
rc = smk_tskacc(tsp, smk_of_inode(inode), MAY_READ, &ad);
- rc = smk_bu_credfile(cred, file, MAY_READ, rc);
+ rc = smk_bu_credfile(file->f_cred, file, MAY_READ, rc);
return rc;
}
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 213b8c593668..9f932e2d6852 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -320,7 +320,7 @@ static int tomoyo_file_fcntl(struct file *file, unsigned int cmd,
*
* Returns 0 on success, negative value otherwise.
*/
-static int tomoyo_file_open(struct file *f, const struct cred *cred)
+static int tomoyo_file_open(struct file *f)
{
int flags = f->f_flags;
/* Don't check read permission here if called from do_execve(). */
--
2.11.0
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