1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/*
* SELinux support for the XFRM LSM hooks
*
* Author : Trent Jaeger, <jaegert@us.ibm.com>
* Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.com>
*/
#ifndef _SELINUX_XFRM_H_
#define _SELINUX_XFRM_H_
#include <net/flow.h>
int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
struct xfrm_user_sec_ctx *uctx,
gfp_t gfp);
int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
struct xfrm_sec_ctx **new_ctxp);
void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
int selinux_xfrm_state_alloc(struct xfrm_state *x,
struct xfrm_user_sec_ctx *uctx);
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_state_pol_flow_match(struct xfrm_state *x,
struct xfrm_policy *xp,
const struct flowi *fl);
#ifdef CONFIG_SECURITY_NETWORK_XFRM
extern atomic_t selinux_xfrm_refcount;
static inline int selinux_xfrm_enabled(void)
{
return (atomic_read(&selinux_xfrm_refcount) > 0);
}
int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
struct common_audit_data *ad);
int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
struct common_audit_data *ad, u8 proto);
int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid);
static inline void selinux_xfrm_notify_policyload(void)
{
struct net *net;
atomic_inc(&flow_cache_genid);
rtnl_lock();
for_each_net(net)
rt_genid_bump_all(net);
rtnl_unlock();
}
#else
static inline int selinux_xfrm_enabled(void)
{
return 0;
}
static inline int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
struct common_audit_data *ad)
{
return 0;
}
static inline int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
struct common_audit_data *ad,
u8 proto)
{
return 0;
}
static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid,
int ckall)
{
*sid = SECSID_NULL;
return 0;
}
static inline void selinux_xfrm_notify_policyload(void)
{
}
static inline int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid)
{
*sid = SECSID_NULL;
return 0;
}
#endif
#endif /* _SELINUX_XFRM_H_ */
|
