llc_if.h 3.1 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104
  1. #ifndef LLC_IF_H
  2. #define LLC_IF_H
  3. /*
  4. * Copyright (c) 1997 by Procom Technology,Inc.
  5. * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  6. *
  7. * This program can be redistributed or modified under the terms of the
  8. * GNU General Public License as published by the Free Software Foundation.
  9. * This program is distributed without any warranty or implied warranty
  10. * of merchantability or fitness for a particular purpose.
  11. *
  12. * See the GNU General Public License for more details.
  13. */
  14. /* Defines LLC interface to network layer */
  15. /* Available primitives */
  16. #include <linux/if.h>
  17. #include <linux/if_arp.h>
  18. #include <linux/llc.h>
  19. #include <linux/etherdevice.h>
  20. #include <net/llc.h>
  21. #define LLC_DATAUNIT_PRIM 1
  22. #define LLC_CONN_PRIM 2
  23. #define LLC_DATA_PRIM 3
  24. #define LLC_DISC_PRIM 4
  25. #define LLC_RESET_PRIM 5
  26. #define LLC_FLOWCONTROL_PRIM 6 /* Not supported at this time */
  27. #define LLC_DISABLE_PRIM 7
  28. #define LLC_XID_PRIM 8
  29. #define LLC_TEST_PRIM 9
  30. #define LLC_SAP_ACTIVATION 10
  31. #define LLC_SAP_DEACTIVATION 11
  32. #define LLC_NBR_PRIMITIVES 11
  33. #define LLC_IND 1
  34. #define LLC_CONFIRM 2
  35. /* Primitive type */
  36. #define LLC_PRIM_TYPE_REQ 1
  37. #define LLC_PRIM_TYPE_IND 2
  38. #define LLC_PRIM_TYPE_RESP 3
  39. #define LLC_PRIM_TYPE_CONFIRM 4
  40. /* Reset reasons, remote entity or local LLC */
  41. #define LLC_RESET_REASON_REMOTE 1
  42. #define LLC_RESET_REASON_LOCAL 2
  43. /* Disconnect reasons */
  44. #define LLC_DISC_REASON_RX_DM_RSP_PDU 0
  45. #define LLC_DISC_REASON_RX_DISC_CMD_PDU 1
  46. #define LLC_DISC_REASON_ACK_TMR_EXP 2
  47. /* Confirm reasons */
  48. #define LLC_STATUS_CONN 0 /* connect confirm & reset confirm */
  49. #define LLC_STATUS_DISC 1 /* connect confirm & reset confirm */
  50. #define LLC_STATUS_FAILED 2 /* connect confirm & reset confirm */
  51. #define LLC_STATUS_IMPOSSIBLE 3 /* connect confirm */
  52. #define LLC_STATUS_RECEIVED 4 /* data conn */
  53. #define LLC_STATUS_REMOTE_BUSY 5 /* data conn */
  54. #define LLC_STATUS_REFUSE 6 /* data conn */
  55. #define LLC_STATUS_CONFLICT 7 /* disconnect conn */
  56. #define LLC_STATUS_RESET_DONE 8 /* */
  57. /**
  58. * llc_mac_null - determines if a address is a null mac address
  59. * @mac: Mac address to test if null.
  60. *
  61. * Determines if a given address is a null mac address. Returns 0 if the
  62. * address is not a null mac, 1 if the address is a null mac.
  63. */
  64. static inline int llc_mac_null(const u8 *mac)
  65. {
  66. return is_zero_ether_addr(mac);
  67. }
  68. static inline int llc_addrany(const struct llc_addr *addr)
  69. {
  70. return llc_mac_null(addr->mac) && !addr->lsap;
  71. }
  72. static inline int llc_mac_multicast(const u8 *mac)
  73. {
  74. return is_multicast_ether_addr(mac);
  75. }
  76. /**
  77. * llc_mac_match - determines if two mac addresses are the same
  78. * @mac1: First mac address to compare.
  79. * @mac2: Second mac address to compare.
  80. *
  81. * Determines if two given mac address are the same. Returns 0 if there
  82. * is not a complete match up to len, 1 if a complete match up to len is
  83. * found.
  84. */
  85. static inline int llc_mac_match(const u8 *mac1, const u8 *mac2)
  86. {
  87. return !compare_ether_addr(mac1, mac2);
  88. }
  89. extern int llc_establish_connection(struct sock *sk, u8 *lmac,
  90. u8 *dmac, u8 dsap);
  91. extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
  92. extern int llc_send_disc(struct sock *sk);
  93. #endif /* LLC_IF_H */