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authorKhadija Kamran <kamrankhadijadj@gmail.com>2023-08-07 11:59:29 +0500
committerPaul Moore <paul@paul-moore.com>2023-08-08 16:48:47 -0400
commit6672efbb685f7c9c9df005beb839e1942fd6b34e (patch)
treee29f61323cc3b5923c4013248381cb6382c2ca0e /security
parentbd1f5934e460eb11f42278fe8450a87d64bf70f5 (diff)
lsm: constify the 'target' parameter in security_capget()
Three LSMs register the implementations for the "capget" hook: AppArmor, SELinux, and the normal capability code. Looking at the function implementations we may observe that the first parameter "target" is not changing. Mark the first argument "target" of LSM hook security_capget() as "const" since it will not be changing in the LSM hook. cap_capget() LSM hook declaration exceeds the 80 characters per line limit. Split the function declaration to multiple lines to decrease the line length. Signed-off-by: Khadija Kamran <kamrankhadijadj@gmail.com> Acked-by: John Johansen <john.johansen@canonical.com> [PM: align the cap_capget() declaration, spelling fixes] Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security')
-rw-r--r--security/apparmor/lsm.c2
-rw-r--r--security/commoncap.c2
-rw-r--r--security/security.c2
-rw-r--r--security/selinux/hooks.c2
4 files changed, 4 insertions, 4 deletions
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index c9463bd0307d..108eccc5ada5 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -144,7 +144,7 @@ static int apparmor_ptrace_traceme(struct task_struct *parent)
}
/* Derived from security/commoncap.c:cap_capget */
-static int apparmor_capget(struct task_struct *target, kernel_cap_t *effective,
+static int apparmor_capget(const struct task_struct *target, kernel_cap_t *effective,
kernel_cap_t *inheritable, kernel_cap_t *permitted)
{
struct aa_label *label;
diff --git a/security/commoncap.c b/security/commoncap.c
index ab5742ab4362..bc0521104197 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -197,7 +197,7 @@ out:
* This function retrieves the capabilities of the nominated task and returns
* them to the caller.
*/
-int cap_capget(struct task_struct *target, kernel_cap_t *effective,
+int cap_capget(const struct task_struct *target, kernel_cap_t *effective,
kernel_cap_t *inheritable, kernel_cap_t *permitted)
{
const struct cred *cred;
diff --git a/security/security.c b/security/security.c
index 9177fd0968bd..6962ea38a98f 100644
--- a/security/security.c
+++ b/security/security.c
@@ -894,7 +894,7 @@ int security_ptrace_traceme(struct task_struct *parent)
*
* Return: Returns 0 if the capability sets were successfully obtained.
*/
-int security_capget(struct task_struct *target,
+int security_capget(const struct task_struct *target,
kernel_cap_t *effective,
kernel_cap_t *inheritable,
kernel_cap_t *permitted)
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index a0787f07d745..c816dc5de627 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2082,7 +2082,7 @@ static int selinux_ptrace_traceme(struct task_struct *parent)
SECCLASS_PROCESS, PROCESS__PTRACE, NULL);
}
-static int selinux_capget(struct task_struct *target, kernel_cap_t *effective,
+static int selinux_capget(const struct task_struct *target, kernel_cap_t *effective,
kernel_cap_t *inheritable, kernel_cap_t *permitted)
{
return avc_has_perm(current_sid(), task_sid_obj(target),