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selinux: delete selinux_xfrm_policy_lookup() useless argument

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seliunx_xfrm_policy_lookup() is hooks of security_xfrm_policy_lookup().
The dir argument is uselss in security_xfrm_policy_lookup(). So
remove the dir argument from selinux_xfrm_policy_lookup() and
security_xfrm_policy_lookup().

Signed-off-by: Zhongjun Tan <tanzhongjun@yulong.com>
[PM: reformat the subject line]
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Zhongjun Tan 2021-04-09 13:48:41 +08:00 committed by Paul Moore
parent e1cce3a3cb
commit 8a922805fb
6 changed files with 9 additions and 12 deletions
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3
include/linux/lsm_hook_defs.h
View File

@ -358,8 +358,7 @@ LSM_HOOK(int, 0, xfrm_state_alloc_acquire, struct xfrm_state *x,
struct xfrm_sec_ctx *polsec, u32 secid)
LSM_HOOK(void, LSM_RET_VOID, xfrm_state_free_security, struct xfrm_state *x)
LSM_HOOK(int, 0, xfrm_state_delete_security, struct xfrm_state *x)
LSM_HOOK(int, 0, xfrm_policy_lookup, struct xfrm_sec_ctx *ctx, u32 fl_secid,
u8 dir)
LSM_HOOK(int, 0, xfrm_policy_lookup, struct xfrm_sec_ctx *ctx, u32 fl_secid)
LSM_HOOK(int, 1, xfrm_state_pol_flow_match, struct xfrm_state *x,
struct xfrm_policy *xp, const struct flowi_common *flic)
LSM_HOOK(int, 0, xfrm_decode_session, struct sk_buff *skb, u32 *secid,

4
include/linux/security.h
View File

@ -1681,7 +1681,7 @@ int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
struct xfrm_sec_ctx *polsec, u32 secid);
int security_xfrm_state_delete(struct xfrm_state *x);
void security_xfrm_state_free(struct xfrm_state *x);
int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
struct xfrm_policy *xp,
const struct flowi_common *flic);
@ -1732,7 +1732,7 @@ static inline int security_xfrm_state_delete(struct xfrm_state *x)
return 0;
}
static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
{
return 0;
}

6
net/xfrm/xfrm_policy.c
View File

@ -1902,8 +1902,7 @@ static int xfrm_policy_match(const struct xfrm_policy *pol,
match = xfrm_selector_match(sel, fl, family);
if (match)
ret = security_xfrm_policy_lookup(pol->security, fl->flowi_secid,
dir);
ret = security_xfrm_policy_lookup(pol->security, fl->flowi_secid);
return ret;
}
@ -2181,8 +2180,7 @@ static struct xfrm_policy *xfrm_sk_policy_lookup(const struct sock *sk, int dir,
goto out;
}
err = security_xfrm_policy_lookup(pol->security,
fl->flowi_secid,
dir);
fl->flowi_secid);
if (!err) {
if (!xfrm_pol_hold_rcu(pol))
goto again;

4
security/security.c
View File

@ -2466,9 +2466,9 @@ void security_xfrm_state_free(struct xfrm_state *x)
call_void_hook(xfrm_state_free_security, x);
}
int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
{
return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir);
return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid);
}
int security_xfrm_state_pol_flow_match(struct xfrm_state *x,

2
security/selinux/include/xfrm.h
View File

@ -23,7 +23,7 @@ int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
struct xfrm_sec_ctx *polsec, u32 secid);
void selinux_xfrm_state_free(struct xfrm_state *x);
int selinux_xfrm_state_delete(struct xfrm_state *x);
int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
struct xfrm_policy *xp,
const struct flowi_common *flic);

2
security/selinux/xfrm.c
View File

@ -150,7 +150,7 @@ static int selinux_xfrm_delete(struct xfrm_sec_ctx *ctx)
* LSM hook implementation that authorizes that a flow can use a xfrm policy
* rule.
*/
int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
{
int rc;