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/include/uapi/linux/ppp_defs.h

https://github.com/gby/linux
C Header | 150 lines | 93 code | 22 blank | 35 comment | 0 complexity | ecb8ee67e6af9a6f14a756505844bbeb MD5 | raw file
  1. /*
  2. * ppp_defs.h - PPP definitions.
  3. *
  4. * Copyright 1994-2000 Paul Mackerras.
  5. *
  6. * This program is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU General Public License
  8. * version 2 as published by the Free Software Foundation.
  9. */
  10. #include <linux/types.h>
  11. #ifndef _UAPI_PPP_DEFS_H_
  12. #define _UAPI_PPP_DEFS_H_
  13. /*
  14. * The basic PPP frame.
  15. */
  16. #define PPP_HDRLEN 4 /* octets for standard ppp header */
  17. #define PPP_FCSLEN 2 /* octets for FCS */
  18. #define PPP_MRU 1500 /* default MRU = max length of info field */
  19. #define PPP_ADDRESS(p) (((__u8 *)(p))[0])
  20. #define PPP_CONTROL(p) (((__u8 *)(p))[1])
  21. #define PPP_PROTOCOL(p) ((((__u8 *)(p))[2] << 8) + ((__u8 *)(p))[3])
  22. /*
  23. * Significant octet values.
  24. */
  25. #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */
  26. #define PPP_UI 0x03 /* Unnumbered Information */
  27. #define PPP_FLAG 0x7e /* Flag Sequence */
  28. #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */
  29. #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */
  30. /*
  31. * Protocol field values.
  32. */
  33. #define PPP_IP 0x21 /* Internet Protocol */
  34. #define PPP_AT 0x29 /* AppleTalk Protocol */
  35. #define PPP_IPX 0x2b /* IPX protocol */
  36. #define PPP_VJC_COMP 0x2d /* VJ compressed TCP */
  37. #define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */
  38. #define PPP_MP 0x3d /* Multilink protocol */
  39. #define PPP_IPV6 0x57 /* Internet Protocol Version 6 */
  40. #define PPP_COMPFRAG 0xfb /* fragment compressed below bundle */
  41. #define PPP_COMP 0xfd /* compressed packet */
  42. #define PPP_MPLS_UC 0x0281 /* Multi Protocol Label Switching - Unicast */
  43. #define PPP_MPLS_MC 0x0283 /* Multi Protocol Label Switching - Multicast */
  44. #define PPP_IPCP 0x8021 /* IP Control Protocol */
  45. #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */
  46. #define PPP_IPXCP 0x802b /* IPX Control Protocol */
  47. #define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */
  48. #define PPP_CCPFRAG 0x80fb /* CCP at link level (below MP bundle) */
  49. #define PPP_CCP 0x80fd /* Compression Control Protocol */
  50. #define PPP_MPLSCP 0x80fd /* MPLS Control Protocol */
  51. #define PPP_LCP 0xc021 /* Link Control Protocol */
  52. #define PPP_PAP 0xc023 /* Password Authentication Protocol */
  53. #define PPP_LQR 0xc025 /* Link Quality Report protocol */
  54. #define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */
  55. #define PPP_CBCP 0xc029 /* Callback Control Protocol */
  56. /*
  57. * Values for FCS calculations.
  58. */
  59. #define PPP_INITFCS 0xffff /* Initial FCS value */
  60. #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */
  61. /*
  62. * Extended asyncmap - allows any character to be escaped.
  63. */
  64. typedef __u32 ext_accm[8];
  65. /*
  66. * What to do with network protocol (NP) packets.
  67. */
  68. enum NPmode {
  69. NPMODE_PASS, /* pass the packet through */
  70. NPMODE_DROP, /* silently drop the packet */
  71. NPMODE_ERROR, /* return an error */
  72. NPMODE_QUEUE /* save it up for later. */
  73. };
  74. /*
  75. * Statistics for LQRP and pppstats
  76. */
  77. struct pppstat {
  78. __u32 ppp_discards; /* # frames discarded */
  79. __u32 ppp_ibytes; /* bytes received */
  80. __u32 ppp_ioctects; /* bytes received not in error */
  81. __u32 ppp_ipackets; /* packets received */
  82. __u32 ppp_ierrors; /* receive errors */
  83. __u32 ppp_ilqrs; /* # LQR frames received */
  84. __u32 ppp_obytes; /* raw bytes sent */
  85. __u32 ppp_ooctects; /* frame bytes sent */
  86. __u32 ppp_opackets; /* packets sent */
  87. __u32 ppp_oerrors; /* transmit errors */
  88. __u32 ppp_olqrs; /* # LQR frames sent */
  89. };
  90. struct vjstat {
  91. __u32 vjs_packets; /* outbound packets */
  92. __u32 vjs_compressed; /* outbound compressed packets */
  93. __u32 vjs_searches; /* searches for connection state */
  94. __u32 vjs_misses; /* times couldn't find conn. state */
  95. __u32 vjs_uncompressedin; /* inbound uncompressed packets */
  96. __u32 vjs_compressedin; /* inbound compressed packets */
  97. __u32 vjs_errorin; /* inbound unknown type packets */
  98. __u32 vjs_tossed; /* inbound packets tossed because of error */
  99. };
  100. struct compstat {
  101. __u32 unc_bytes; /* total uncompressed bytes */
  102. __u32 unc_packets; /* total uncompressed packets */
  103. __u32 comp_bytes; /* compressed bytes */
  104. __u32 comp_packets; /* compressed packets */
  105. __u32 inc_bytes; /* incompressible bytes */
  106. __u32 inc_packets; /* incompressible packets */
  107. /* the compression ratio is defined as in_count / bytes_out */
  108. __u32 in_count; /* Bytes received */
  109. __u32 bytes_out; /* Bytes transmitted */
  110. double ratio; /* not computed in kernel. */
  111. };
  112. struct ppp_stats {
  113. struct pppstat p; /* basic PPP statistics */
  114. struct vjstat vj; /* VJ header compression statistics */
  115. };
  116. struct ppp_comp_stats {
  117. struct compstat c; /* packet compression statistics */
  118. struct compstat d; /* packet decompression statistics */
  119. };
  120. /*
  121. * The following structure records the time in seconds since
  122. * the last NP packet was sent or received.
  123. */
  124. struct ppp_idle {
  125. __kernel_time_t xmit_idle; /* time since last NP packet sent */
  126. __kernel_time_t recv_idle; /* time since last NP packet received */
  127. };
  128. #endif /* _UAPI_PPP_DEFS_H_ */