ee8372dd19
When a policy is inserted or deleted, all dst should be recalculated. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
/*
|
|
* 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 *sec_ctx);
|
|
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 *sec_ctx, 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);
|
|
|
|
/*
|
|
* Extract the security blob from the sock (it's actually on the socket)
|
|
*/
|
|
static inline struct inode_security_struct *get_sock_isec(struct sock *sk)
|
|
{
|
|
if (!sk->sk_socket)
|
|
return NULL;
|
|
|
|
return SOCK_INODE(sk->sk_socket)->i_security;
|
|
}
|
|
|
|
#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 sid, struct sk_buff *skb,
|
|
struct common_audit_data *ad);
|
|
int selinux_xfrm_postroute_last(u32 isec_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);
|
|
|
|
static inline void selinux_xfrm_notify_policyload(void)
|
|
{
|
|
atomic_inc(&flow_cache_genid);
|
|
rt_genid_bump(&init_net);
|
|
}
|
|
#else
|
|
static inline int selinux_xfrm_enabled(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
|
|
struct common_audit_data *ad)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int selinux_xfrm_postroute_last(u32 isec_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)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
static inline void selinux_skb_xfrm_sid(struct sk_buff *skb, u32 *sid)
|
|
{
|
|
int err = selinux_xfrm_decode_session(skb, sid, 0);
|
|
BUG_ON(err);
|
|
}
|
|
|
|
#endif /* _SELINUX_XFRM_H_ */
|