1 /* 2 * ecp.c - PPP Encryption Control Protocol. 3 * 4 * Copyright (c) 2002 Google, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 19 * 3. The name(s) of the authors of this software must not be used to 20 * endorse or promote products derived from this software without 21 * prior written permission. 22 * 23 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO 24 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 25 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY 26 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 27 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 28 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 29 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 30 * 31 * Derived from ccp.c, which is: 32 * 33 * Copyright (c) 1994-2002 Paul Mackerras. All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 42 * 2. The name(s) of the authors of this software must not be used to 43 * endorse or promote products derived from this software without 44 * prior written permission. 45 * 46 * 3. Redistributions of any form whatsoever must retain the following 47 * acknowledgment: 48 * "This product includes software developed by Paul Mackerras 49 * <paulus (at) samba.org>". 50 * 51 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO 52 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 53 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY 54 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 55 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 56 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 57 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 58 */ 59 60 #define RCSID "$Id: ecp.c,v 1.4 2004/11/04 10:02:26 paulus Exp $" 61 62 static const char rcsid[] = RCSID; 63 64 #include <string.h> 65 66 #include "pppd.h" 67 #include "fsm.h" 68 #include "ecp.h" 69 70 static option_t ecp_option_list[] = { 71 { "noecp", o_bool, &ecp_protent.enabled_flag, 72 "Disable ECP negotiation" }, 73 { "-ecp", o_bool, &ecp_protent.enabled_flag, 74 "Disable ECP negotiation", OPT_ALIAS }, 75 76 { NULL } 77 }; 78 79 /* 80 * Protocol entry points from main code. 81 */ 82 static void ecp_init __P((int unit)); 83 /* 84 static void ecp_open __P((int unit)); 85 static void ecp_close __P((int unit, char *)); 86 static void ecp_lowerup __P((int unit)); 87 static void ecp_lowerdown __P((int)); 88 static void ecp_input __P((int unit, u_char *pkt, int len)); 89 static void ecp_protrej __P((int unit)); 90 */ 91 static int ecp_printpkt __P((u_char *pkt, int len, 92 void (*printer) __P((void *, char *, ...)), 93 void *arg)); 94 /* 95 static void ecp_datainput __P((int unit, u_char *pkt, int len)); 96 */ 97 98 struct protent ecp_protent = { 99 PPP_ECP, 100 ecp_init, 101 NULL, /* ecp_input, */ 102 NULL, /* ecp_protrej, */ 103 NULL, /* ecp_lowerup, */ 104 NULL, /* ecp_lowerdown, */ 105 NULL, /* ecp_open, */ 106 NULL, /* ecp_close, */ 107 ecp_printpkt, 108 NULL, /* ecp_datainput, */ 109 0, 110 "ECP", 111 "Encrypted", 112 ecp_option_list, 113 NULL, 114 NULL, 115 NULL 116 }; 117 118 fsm ecp_fsm[NUM_PPP]; 119 ecp_options ecp_wantoptions[NUM_PPP]; /* what to request the peer to use */ 120 ecp_options ecp_gotoptions[NUM_PPP]; /* what the peer agreed to do */ 121 ecp_options ecp_allowoptions[NUM_PPP]; /* what we'll agree to do */ 122 ecp_options ecp_hisoptions[NUM_PPP]; /* what we agreed to do */ 123 124 static fsm_callbacks ecp_callbacks = { 125 NULL, /* ecp_resetci, */ 126 NULL, /* ecp_cilen, */ 127 NULL, /* ecp_addci, */ 128 NULL, /* ecp_ackci, */ 129 NULL, /* ecp_nakci, */ 130 NULL, /* ecp_rejci, */ 131 NULL, /* ecp_reqci, */ 132 NULL, /* ecp_up, */ 133 NULL, /* ecp_down, */ 134 NULL, 135 NULL, 136 NULL, 137 NULL, 138 NULL, /* ecp_extcode, */ 139 "ECP" 140 }; 141 142 /* 143 * ecp_init - initialize ECP. 144 */ 145 static void 146 ecp_init(unit) 147 int unit; 148 { 149 fsm *f = &ecp_fsm[unit]; 150 151 f->unit = unit; 152 f->protocol = PPP_ECP; 153 f->callbacks = &ecp_callbacks; 154 fsm_init(f); 155 156 memset(&ecp_wantoptions[unit], 0, sizeof(ecp_options)); 157 memset(&ecp_gotoptions[unit], 0, sizeof(ecp_options)); 158 memset(&ecp_allowoptions[unit], 0, sizeof(ecp_options)); 159 memset(&ecp_hisoptions[unit], 0, sizeof(ecp_options)); 160 161 } 162 163 164 static int 165 ecp_printpkt(p, plen, printer, arg) 166 u_char *p; 167 int plen; 168 void (*printer) __P((void *, char *, ...)); 169 void *arg; 170 { 171 return 0; 172 } 173 174
