CRED: Constify the kernel_cap_t arguments to the capset LSM hooks

Constify the kernel_cap_t arguments to the capset LSM hooks.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: James Morris <jmorris@namei.org>

4 files changed, 42 insertions, 34 deletions

diff --git a/include/linux/security.h b/include/linux/security.h
index d1ce8bed..9f305d4 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -53,8 +53,12 @@ extern int cap_settime(struct timespec *ts, struct timezone *tz);
 extern int cap_ptrace_may_access(struct task_struct *child, unsigned int mode);
 extern int cap_ptrace_traceme(struct task_struct *parent);
 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
-extern int cap_capset_check(kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
-extern void cap_capset_set(kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
+extern int cap_capset_check(const kernel_cap_t *effective,
+			    const kernel_cap_t *inheritable,
+			    const kernel_cap_t *permitted);
+extern void cap_capset_set(const kernel_cap_t *effective,
+			   const kernel_cap_t *inheritable,
+			   const kernel_cap_t *permitted);
 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);
@@ -1293,12 +1297,12 @@ struct security_operations {
 	int (*capget) (struct task_struct *target,
 		       kernel_cap_t *effective,
 		       kernel_cap_t *inheritable, kernel_cap_t *permitted);
-	int (*capset_check) (kernel_cap_t *effective,
-			     kernel_cap_t *inheritable,
-			     kernel_cap_t *permitted);
-	void (*capset_set) (kernel_cap_t *effective,
-			    kernel_cap_t *inheritable,
-			    kernel_cap_t *permitted);
+	int (*capset_check) (const kernel_cap_t *effective,
+			     const kernel_cap_t *inheritable,
+			     const kernel_cap_t *permitted);
+	void (*capset_set) (const kernel_cap_t *effective,
+			    const kernel_cap_t *inheritable,
+			    const kernel_cap_t *permitted);
 	int (*capable) (struct task_struct *tsk, int cap, int audit);
 	int (*acct) (struct file *file);
 	int (*sysctl) (struct ctl_table *table, int op);
@@ -1560,12 +1564,12 @@ int security_capget(struct task_struct *target,
 		    kernel_cap_t *effective,
 		    kernel_cap_t *inheritable,
 		    kernel_cap_t *permitted);
-int security_capset_check(kernel_cap_t *effective,
-			  kernel_cap_t *inheritable,
-			  kernel_cap_t *permitted);
-void security_capset_set(kernel_cap_t *effective,
-			 kernel_cap_t *inheritable,
-			 kernel_cap_t *permitted);
+int security_capset_check(const kernel_cap_t *effective,
+			  const kernel_cap_t *inheritable,
+			  const kernel_cap_t *permitted);
+void security_capset_set(const kernel_cap_t *effective,
+			 const kernel_cap_t *inheritable,
+			 const kernel_cap_t *permitted);
 int security_capable(struct task_struct *tsk, int cap);
 int security_capable_noaudit(struct task_struct *tsk, int cap);
 int security_acct(struct file *file);
@@ -1755,16 +1759,16 @@ static inline int security_capget(struct task_struct *target,
 	return cap_capget(target, effective, inheritable, permitted);
 }
 
-static inline int security_capset_check(kernel_cap_t *effective,
-					kernel_cap_t *inheritable,
-					kernel_cap_t *permitted)
+static inline int security_capset_check(const kernel_cap_t *effective,
+					const kernel_cap_t *inheritable,
+					const kernel_cap_t *permitted)
 {
 	return cap_capset_check(effective, inheritable, permitted);
 }
 
-static inline void security_capset_set(kernel_cap_t *effective,
-				       kernel_cap_t *inheritable,
-				       kernel_cap_t *permitted)
+static inline void security_capset_set(const kernel_cap_t *effective,
+				       const kernel_cap_t *inheritable,
+				       const kernel_cap_t *permitted)
 {
 	cap_capset_set(effective, inheritable, permitted);
 }
diff --git a/security/commoncap.c b/security/commoncap.c
index e3f36ef..fb4e240 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -118,8 +118,9 @@ static inline int cap_limit_ptraced_target(void)
 
 #endif /* def CONFIG_SECURITY_FILE_CAPABILITIES */
 
-int cap_capset_check (kernel_cap_t *effective,
-		      kernel_cap_t *inheritable, kernel_cap_t *permitted)
+int cap_capset_check(const kernel_cap_t *effective,
+		     const kernel_cap_t *inheritable,
+		     const kernel_cap_t *permitted)
 {
 	if (cap_inh_is_capped()
 	    && !cap_issubset(*inheritable,
@@ -150,8 +151,9 @@ int cap_capset_check (kernel_cap_t *effective,
 	return 0;
 }
 
-void cap_capset_set (kernel_cap_t *effective,
-		     kernel_cap_t *inheritable, kernel_cap_t *permitted)
+void cap_capset_set(const kernel_cap_t *effective,
+		    const kernel_cap_t *inheritable,
+		    const kernel_cap_t *permitted)
 {
 	current->cap_effective = *effective;
 	current->cap_inheritable = *inheritable;
diff --git a/security/security.c b/security/security.c
index dca3738..81c956a 100644
--- a/security/security.c
+++ b/security/security.c
@@ -145,16 +145,16 @@ int security_capget(struct task_struct *target,
 	return security_ops->capget(target, effective, inheritable, permitted);
 }
 
-int security_capset_check(kernel_cap_t *effective,
-			  kernel_cap_t *inheritable,
-			  kernel_cap_t *permitted)
+int security_capset_check(const kernel_cap_t *effective,
+			  const kernel_cap_t *inheritable,
+			  const kernel_cap_t *permitted)
 {
 	return security_ops->capset_check(effective, inheritable, permitted);
 }
 
-void security_capset_set(kernel_cap_t *effective,
-			 kernel_cap_t *inheritable,
-			 kernel_cap_t *permitted)
+void security_capset_set(const kernel_cap_t *effective,
+			 const kernel_cap_t *inheritable,
+			 const kernel_cap_t *permitted)
 {
 	security_ops->capset_set(effective, inheritable, permitted);
 }
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index df99869..9f6da15 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1790,8 +1790,9 @@ static int selinux_capget(struct task_struct *target, kernel_cap_t *effective,
 	return secondary_ops->capget(target, effective, inheritable, permitted);
 }
 
-static int selinux_capset_check(kernel_cap_t *effective,
-				kernel_cap_t *inheritable, kernel_cap_t *permitted)
+static int selinux_capset_check(const kernel_cap_t *effective,
+				const kernel_cap_t *inheritable,
+				const kernel_cap_t *permitted)
 {
 	int error;
 
@@ -1802,8 +1803,9 @@ static int selinux_capset_check(kernel_cap_t *effective,
 	return task_has_perm(current, current, PROCESS__SETCAP);
 }
 
-static void selinux_capset_set(kernel_cap_t *effective,
-			       kernel_cap_t *inheritable, kernel_cap_t *permitted)
+static void selinux_capset_set(const kernel_cap_t *effective,
+			       const kernel_cap_t *inheritable,
+			       const kernel_cap_t *permitted)
 {
 	secondary_ops->capset_set(effective, inheritable, permitted);
 }