1 | /* |
2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* |
29 | * ppp_defs.h - PPP definitions. |
30 | * |
31 | * Copyright (c) 1994 The Australian National University. |
32 | * All rights reserved. |
33 | * |
34 | * Permission to use, copy, modify, and distribute this software and its |
35 | * documentation is hereby granted, provided that the above copyright |
36 | * notice appears in all copies. This software is provided without any |
37 | * warranty, express or implied. The Australian National University |
38 | * makes no representations about the suitability of this software for |
39 | * any purpose. |
40 | * |
41 | * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY |
42 | * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
43 | * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF |
44 | * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY |
45 | * OF SUCH DAMAGE. |
46 | * |
47 | * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, |
48 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
49 | * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
50 | * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO |
51 | * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, |
52 | * OR MODIFICATIONS. |
53 | * |
54 | */ |
55 | |
56 | #ifndef _PPP_DEFS_H_ |
57 | #define _PPP_DEFS_H_ |
58 | #include <sys/appleapiopts.h> |
59 | |
60 | /* |
61 | * The basic PPP frame. |
62 | */ |
63 | #define PPP_HDRLEN 4 /* octets for standard ppp header */ |
64 | #define PPP_FCSLEN 2 /* octets for FCS */ |
65 | #define PPP_MRU 1500 /* default MRU = max length of info field */ |
66 | |
67 | #define PPP_ADDRESS(p) (((u_char *)(p))[0]) |
68 | #define PPP_CONTROL(p) (((u_char *)(p))[1]) |
69 | #define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3]) |
70 | |
71 | /* |
72 | * Significant octet values. |
73 | */ |
74 | #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ |
75 | #define PPP_UI 0x03 /* Unnumbered Information */ |
76 | #define PPP_FLAG 0x7e /* Flag Sequence */ |
77 | #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ |
78 | #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ |
79 | |
80 | /* |
81 | * Protocol field values. |
82 | */ |
83 | #define PPP_IP 0x21 /* Internet Protocol */ |
84 | #define PPP_XNS 0x25 /* Xerox NS */ |
85 | #define PPP_AT 0x29 /* AppleTalk Protocol */ |
86 | #define PPP_IPX 0x2b /* IPX Datagram (RFC1552) */ |
87 | #define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ |
88 | #define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ |
89 | #define PPP_COMP 0xfd /* compressed packet */ |
90 | #define PPP_IPCP 0x8021 /* IP Control Protocol */ |
91 | #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */ |
92 | #define PPP_IPXCP 0x802b /* IPX Control Protocol (RFC1552) */ |
93 | #define PPP_CCP 0x80fd /* Compression Control Protocol */ |
94 | #define PPP_LCP 0xc021 /* Link Control Protocol */ |
95 | #define PPP_PAP 0xc023 /* Password Authentication Protocol */ |
96 | #define PPP_LQR 0xc025 /* Link Quality Report protocol */ |
97 | #define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */ |
98 | #define PPP_CBCP 0xc029 /* Callback Control Protocol */ |
99 | #define PPP_IPV6 0x57 /* Internet Protocol version 6*/ |
100 | #define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */ |
101 | |
102 | /* |
103 | * Values for FCS calculations. |
104 | */ |
105 | #define PPP_INITFCS 0xffff /* Initial FCS value */ |
106 | #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ |
107 | #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) |
108 | |
109 | /* |
110 | * Extended asyncmap - allows any character to be escaped. |
111 | */ |
112 | typedef u_int32_t ext_accm[8]; |
113 | |
114 | /* |
115 | * What to do with network protocol (NP) packets. |
116 | */ |
117 | enum NPmode { |
118 | NPMODE_PASS, /* pass the packet through */ |
119 | NPMODE_DROP, /* silently drop the packet */ |
120 | NPMODE_ERROR, /* return an error */ |
121 | NPMODE_QUEUE /* save it up for later. */ |
122 | }; |
123 | |
124 | /* |
125 | * Statistics. |
126 | */ |
127 | struct pppstat { |
128 | unsigned int ppp_ibytes; /* bytes received */ |
129 | unsigned int ppp_ipackets; /* packets received */ |
130 | unsigned int ppp_ierrors; /* receive errors */ |
131 | unsigned int ppp_obytes; /* bytes sent */ |
132 | unsigned int ppp_opackets; /* packets sent */ |
133 | unsigned int ppp_oerrors; /* transmit errors */ |
134 | }; |
135 | |
136 | struct vjstat { |
137 | unsigned int vjs_packets; /* outbound packets */ |
138 | unsigned int vjs_compressed; /* outbound compressed packets */ |
139 | unsigned int vjs_searches; /* searches for connection state */ |
140 | unsigned int vjs_misses; /* times couldn't find conn. state */ |
141 | unsigned int vjs_uncompressedin; /* inbound uncompressed packets */ |
142 | unsigned int vjs_compressedin; /* inbound compressed packets */ |
143 | unsigned int vjs_errorin; /* inbound unknown type packets */ |
144 | unsigned int vjs_tossed; /* inbound packets tossed because of error */ |
145 | }; |
146 | |
147 | struct ppp_stats { |
148 | struct pppstat p; /* basic PPP statistics */ |
149 | struct vjstat vj; /* VJ header compression statistics */ |
150 | }; |
151 | |
152 | struct compstat { |
153 | unsigned int unc_bytes; /* total uncompressed bytes */ |
154 | unsigned int unc_packets; /* total uncompressed packets */ |
155 | unsigned int comp_bytes; /* compressed bytes */ |
156 | unsigned int comp_packets; /* compressed packets */ |
157 | unsigned int inc_bytes; /* incompressible bytes */ |
158 | unsigned int inc_packets; /* incompressible packets */ |
159 | unsigned int ratio; /* recent compression ratio << 8 */ |
160 | }; |
161 | |
162 | struct ppp_comp_stats { |
163 | struct compstat c; /* packet compression statistics */ |
164 | struct compstat d; /* packet decompression statistics */ |
165 | }; |
166 | |
167 | /* |
168 | * The following structure records the time in seconds since |
169 | * the last NP packet was sent or received. |
170 | */ |
171 | struct ppp_idle { |
172 | time_t xmit_idle; /* time since last NP packet sent */ |
173 | time_t recv_idle; /* time since last NP packet received */ |
174 | }; |
175 | |
176 | #endif /* _PPP_DEFS_H_ */ |
177 | |