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Subject[PATCH 05/24] CRED: Constify the kernel_cap_t arguments to the capset LSM hooks [ver #7]
Date
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>
---

include/linux/security.h | 44 ++++++++++++++++++++++++--------------------
security/commoncap.c | 10 ++++++----
security/security.c | 12 ++++++------
security/selinux/hooks.c | 10 ++++++----
4 files changed, 42 insertions(+), 34 deletions(-)


diff --git a/include/linux/security.h b/include/linux/security.h
index dc23a3d..c3eed5a 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -49,8 +49,12 @@ 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);
@@ -1289,12 +1293,12 @@ 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 (*acct) (struct file *file);
int (*sysctl) (struct ctl_table *table, int op);
@@ -1561,12 +1565,12 @@ 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_acct(struct file *file);
int security_sysctl(struct ctl_table *table, int op);
@@ -1754,16 +1758,16 @@ 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 059a131..40e8b83 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -117,8 +117,9 @@ 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,
@@ -149,8 +150,9 @@ 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 78502ac..c2203f5 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 b040887..9cc59f6 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1781,8 +1781,9 @@ 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;

@@ -1793,8 +1794,9 @@ 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);
}


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