55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
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/*
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* SELinux support for the XFRM LSM hooks
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*
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* Author : Trent Jaeger, <jaegert@us.ibm.com>
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*/
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#ifndef _SELINUX_XFRM_H_
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#define _SELINUX_XFRM_H_
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int selinux_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx);
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int selinux_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new);
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void selinux_xfrm_policy_free(struct xfrm_policy *xp);
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int selinux_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
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void selinux_xfrm_state_free(struct xfrm_state *x);
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int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir);
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/*
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* Extract the security blob from the sock (it's actually on the socket)
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*/
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static inline struct inode_security_struct *get_sock_isec(struct sock *sk)
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{
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if (!sk->sk_socket)
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return NULL;
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return SOCK_INODE(sk->sk_socket)->i_security;
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}
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static inline u32 selinux_no_sk_sid(struct flowi *fl)
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{
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/* NOTE: no sock occurs on ICMP reply, forwards, ... */
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/* icmp_reply: authorize as kernel packet */
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if (fl && fl->proto == IPPROTO_ICMP) {
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return SECINITSID_KERNEL;
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}
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return SECINITSID_ANY_SOCKET;
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}
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#ifdef CONFIG_SECURITY_NETWORK_XFRM
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int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb);
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int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb);
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#else
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static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb)
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{
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return 0;
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}
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static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb)
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{
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return NF_ACCEPT;
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}
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#endif
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#endif /* _SELINUX_XFRM_H_ */
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