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linux-vybrid_pu...
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security
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selinux
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include
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xfrm.h

xfrm.h 1.8 KB
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  1. /*
    2. 

  2.  * SELinux support for the XFRM LSM hooks
    3. 

  3.  *
    4. 

  4.  * Author : Trent Jaeger, <jaegert@us.ibm.com>
    5. 

  5.  */
    6. 

  6. #ifndef _SELINUX_XFRM_H_
    7. 

  7. #define _SELINUX_XFRM_H_
    8. 

  8. 

  9. int selinux_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx);
    10. 

  10. int selinux_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new);
    11. 

  11. void selinux_xfrm_policy_free(struct xfrm_policy *xp);
    12. 

  12. int selinux_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
    13. 

  13. void selinux_xfrm_state_free(struct xfrm_state *x);
    14. 

  14. int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir);
    15. 

  15. 

  16. /*
    17. 

  17.  * Extract the security blob from the sock (it's actually on the socket)
    18. 

  18.  */
    19. 

  19. static inline struct inode_security_struct *get_sock_isec(struct sock *sk)
    20. 

  20. {
    21. 

  21. 	if (!sk->sk_socket)
    22. 

  22. 		return NULL;
    23. 

  23. 

  24. 	return SOCK_INODE(sk->sk_socket)->i_security;
    25. 

  25. }
    26. 

  26. 

  27. 

  28. static inline u32 selinux_no_sk_sid(struct flowi *fl)
    29. 

  29. {
    30. 

  30. 	/* NOTE: no sock occurs on ICMP reply, forwards, ... */
    31. 

  31. 	/* icmp_reply: authorize as kernel packet */
    32. 

  32. 	if (fl && fl->proto == IPPROTO_ICMP) {
    33. 

  33. 		return SECINITSID_KERNEL;
    34. 

  34. 	}
    35. 

  35. 

  36. 	return SECINITSID_ANY_SOCKET;
    37. 

  37. }
    38. 

  38. 

  39. #ifdef CONFIG_SECURITY_NETWORK_XFRM
    40. 

  40. int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb);
    41. 

  41. int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb);
    42. 

  42. u32 selinux_socket_getpeer_stream(struct sock *sk);
    43. 

  43. u32 selinux_socket_getpeer_dgram(struct sk_buff *skb);
    44. 

  44. #else
    45. 

  45. static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb)
    46. 

  46. {
    47. 

  47. 	return 0;
    48. 

  48. }
    49. 

  49. 

  50. static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb)
    51. 

  51. {
    52. 

  52. 	return NF_ACCEPT;
    53. 

  53. }
    54. 

  54. 

  55. static inline int selinux_socket_getpeer_stream(struct sock *sk)
    56. 

  56. {
    57. 

  57. 	return SECSID_NULL;
    58. 

  58. }
    59. 

  59. 

  60. static inline int selinux_socket_getpeer_dgram(struct sk_buff *skb)
    61. 

  61. {
    62. 

  62. 	return SECSID_NULL;
    63. 

  63. }
    64. 

  64. #endif
    65. 

  65. 

  66. #endif /* _SELINUX_XFRM_H_ */
    67.