mirror of
https://github.com/torvalds/linux
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6b877699c6
Fix SO_PEERSEC for tcp sockets to return the security context of the peer (as represented by the SA from the peer) as opposed to the SA used by the local/source socket. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: James Morris <jmorris@namei.org>
74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/*
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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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* Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.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,
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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_policy_delete(struct xfrm_policy *xp);
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int selinux_xfrm_state_alloc(struct xfrm_state *x,
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struct xfrm_user_sec_ctx *sec_ctx, u32 secid);
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void selinux_xfrm_state_free(struct xfrm_state *x);
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int selinux_xfrm_state_delete(struct xfrm_state *x);
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int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir);
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int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
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struct xfrm_policy *xp, struct flowi *fl);
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int selinux_xfrm_flow_state_match(struct flowi *fl, struct xfrm_state *xfrm,
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struct xfrm_policy *xp);
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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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#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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struct avc_audit_data *ad);
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int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
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struct avc_audit_data *ad);
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u32 selinux_socket_getpeer_dgram(struct sk_buff *skb);
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int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
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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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struct avc_audit_data *ad)
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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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struct avc_audit_data *ad)
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{
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return 0;
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}
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static inline int selinux_socket_getpeer_dgram(struct sk_buff *skb)
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{
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return SECSID_NULL;
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}
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static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall)
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{
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*sid = SECSID_NULL;
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return 0;
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}
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#endif
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static inline void selinux_skb_xfrm_sid(struct sk_buff *skb, u32 *sid)
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{
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int err = selinux_xfrm_decode_session(skb, sid, 0);
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BUG_ON(err);
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}
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#endif /* _SELINUX_XFRM_H_ */
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