xfrm.h 2.2 KB

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  1. /*
  2. * SELinux support for the XFRM LSM hooks
  3. *
  4. * Author : Trent Jaeger, <jaegert@us.ibm.com>
  5. * Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.com>
  6. */
  7. #ifndef _SELINUX_XFRM_H_
  8. #define _SELINUX_XFRM_H_
  9. int selinux_xfrm_policy_alloc(struct xfrm_policy *xp,
  10. struct xfrm_user_sec_ctx *sec_ctx, struct sock *sk);
  11. int selinux_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new);
  12. void selinux_xfrm_policy_free(struct xfrm_policy *xp);
  13. int selinux_xfrm_policy_delete(struct xfrm_policy *xp);
  14. int selinux_xfrm_state_alloc(struct xfrm_state *x,
  15. struct xfrm_user_sec_ctx *sec_ctx, struct xfrm_sec_ctx *pol, u32 secid);
  16. void selinux_xfrm_state_free(struct xfrm_state *x);
  17. int selinux_xfrm_state_delete(struct xfrm_state *x);
  18. int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir);
  19. int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
  20. struct xfrm_policy *xp, struct flowi *fl);
  21. int selinux_xfrm_flow_state_match(struct flowi *fl, struct xfrm_state *xfrm);
  22. /*
  23. * Extract the security blob from the sock (it's actually on the socket)
  24. */
  25. static inline struct inode_security_struct *get_sock_isec(struct sock *sk)
  26. {
  27. if (!sk->sk_socket)
  28. return NULL;
  29. return SOCK_INODE(sk->sk_socket)->i_security;
  30. }
  31. #ifdef CONFIG_SECURITY_NETWORK_XFRM
  32. int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb,
  33. struct avc_audit_data *ad);
  34. int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
  35. struct avc_audit_data *ad);
  36. u32 selinux_socket_getpeer_stream(struct sock *sk);
  37. u32 selinux_socket_getpeer_dgram(struct sk_buff *skb);
  38. int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
  39. #else
  40. static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
  41. struct avc_audit_data *ad)
  42. {
  43. return 0;
  44. }
  45. static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
  46. struct avc_audit_data *ad)
  47. {
  48. return 0;
  49. }
  50. static inline int selinux_socket_getpeer_stream(struct sock *sk)
  51. {
  52. return SECSID_NULL;
  53. }
  54. static inline int selinux_socket_getpeer_dgram(struct sk_buff *skb)
  55. {
  56. return SECSID_NULL;
  57. }
  58. static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall)
  59. {
  60. *sid = SECSID_NULL;
  61. return 0;
  62. }
  63. #endif
  64. #endif /* _SELINUX_XFRM_H_ */