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selinux: avoid implicit conversions in the LSM hooks

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Use the identical types in assignments of local variables for the
destination.

Merge tail calls into return statements.

Avoid using leading underscores for function local variable.

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
[PM: subject line tweaks]
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Christian Göttsche 2023-07-06 15:23:27 +02:00 committed by Paul Moore
parent 5f740953ab
commit a13479bb3c
1 changed files with 10 additions and 16 deletions
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26
security/selinux/hooks.c
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@ -1125,7 +1125,7 @@ static inline int default_protocol_dgram(int protocol)
static inline u16 socket_type_to_security_class(int family, int type, int protocol)
{
int extsockclass = selinux_policycap_extsockclass();
bool extsockclass = selinux_policycap_extsockclass();
switch (family) {
case PF_UNIX:
@ -5027,15 +5027,13 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
{
int err;
int err, peerlbl_active, secmark_active;
struct sk_security_struct *sksec = sk->sk_security;
u16 family = sk->sk_family;
u32 sk_sid = sksec->sid;
struct common_audit_data ad;
struct lsm_network_audit net = {0,};
char *addrp;
u8 secmark_active;
u8 peerlbl_active;
if (family != PF_INET && family != PF_INET6)
return 0;
@ -5498,11 +5496,11 @@ static void selinux_inet_conn_established(struct sock *sk, struct sk_buff *skb)
static int selinux_secmark_relabel_packet(u32 sid)
{
const struct task_security_struct *__tsec;
const struct task_security_struct *tsec;
u32 tsid;
__tsec = selinux_cred(current_cred());
tsid = __tsec->sid;
tsec = selinux_cred(current_cred());
tsid = tsec->sid;
return avc_has_perm(tsid, sid, SECCLASS_PACKET, PACKET__RELABELTO,
NULL);
@ -6000,8 +5998,7 @@ static int selinux_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg)
static int selinux_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
{
int err;
int perms;
u32 perms;
switch (cmd) {
case IPC_INFO:
@ -6024,8 +6021,7 @@ static int selinux_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
return 0;
}
err = ipc_has_perm(msq, perms);
return err;
return ipc_has_perm(msq, perms);
}
static int selinux_msg_queue_msgsnd(struct kern_ipc_perm *msq, struct msg_msg *msg, int msqflg)
@ -6130,8 +6126,7 @@ static int selinux_shm_associate(struct kern_ipc_perm *shp, int shmflg)
/* Note, at this point, shp is locked down */
static int selinux_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
{
int perms;
int err;
u32 perms;
switch (cmd) {
case IPC_INFO:
@ -6158,8 +6153,7 @@ static int selinux_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
return 0;
}
err = ipc_has_perm(shp, perms);
return err;
return ipc_has_perm(shp, perms);
}
static int selinux_shm_shmat(struct kern_ipc_perm *shp,
@ -6928,7 +6922,7 @@ static int selinux_uring_override_creds(const struct cred *new)
*/
static int selinux_uring_sqpoll(void)
{
int sid = current_sid();
u32 sid = current_sid();
return avc_has_perm(sid, sid,
SECCLASS_IO_URING, IO_URING__SQPOLL, NULL);