1 | /*
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2 | * upap.h - User/Password Authentication Protocol definitions.
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3 | *
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4 | * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
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5 | *
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6 | * Redistribution and use in source and binary forms, with or without
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7 | * modification, are permitted provided that the following conditions
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8 | * are met:
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9 | *
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10 | * 1. Redistributions of source code must retain the above copyright
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11 | * notice, this list of conditions and the following disclaimer.
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12 | *
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13 | * 2. Redistributions in binary form must reproduce the above copyright
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14 | * notice, this list of conditions and the following disclaimer in
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15 | * the documentation and/or other materials provided with the
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16 | * distribution.
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17 | *
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18 | * 3. The name "Carnegie Mellon University" must not be used to
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19 | * endorse or promote products derived from this software without
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20 | * prior written permission. For permission or any legal
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21 | * details, please contact
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22 | * Office of Technology Transfer
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23 | * Carnegie Mellon University
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24 | * 5000 Forbes Avenue
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25 | * Pittsburgh, PA 15213-3890
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26 | * (412) 268-4387, fax: (412) 268-7395
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27 | * tech-transfer@andrew.cmu.edu
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28 | *
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29 | * 4. Redistributions of any form whatsoever must retain the following
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30 | * acknowledgment:
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31 | * "This product includes software developed by Computing Services
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32 | * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
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33 | *
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34 | * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
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35 | * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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36 | * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
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37 | * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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38 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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39 | * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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40 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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41 | *
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42 | * $Id$
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43 | */
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44 |
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45 | #include "netif/ppp/ppp_opts.h"
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46 | #if PPP_SUPPORT && PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */
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47 |
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48 | #ifndef UPAP_H
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49 | #define UPAP_H
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50 |
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51 | #include "ppp.h"
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52 |
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53 | #ifdef __cplusplus
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54 | extern "C" {
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55 | #endif
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56 |
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57 | /*
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58 | * Packet header = Code, id, length.
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59 | */
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60 | #define UPAP_HEADERLEN 4
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61 |
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62 |
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63 | /*
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64 | * UPAP codes.
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65 | */
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66 | #define UPAP_AUTHREQ 1 /* Authenticate-Request */
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67 | #define UPAP_AUTHACK 2 /* Authenticate-Ack */
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68 | #define UPAP_AUTHNAK 3 /* Authenticate-Nak */
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69 |
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70 |
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71 | /*
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72 | * Client states.
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73 | */
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74 | #define UPAPCS_INITIAL 0 /* Connection down */
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75 | #define UPAPCS_CLOSED 1 /* Connection up, haven't requested auth */
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76 | #define UPAPCS_PENDING 2 /* Connection down, have requested auth */
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77 | #define UPAPCS_AUTHREQ 3 /* We've sent an Authenticate-Request */
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78 | #define UPAPCS_OPEN 4 /* We've received an Ack */
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79 | #define UPAPCS_BADAUTH 5 /* We've received a Nak */
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80 |
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81 | /*
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82 | * Server states.
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83 | */
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84 | #define UPAPSS_INITIAL 0 /* Connection down */
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85 | #define UPAPSS_CLOSED 1 /* Connection up, haven't requested auth */
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86 | #define UPAPSS_PENDING 2 /* Connection down, have requested auth */
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87 | #define UPAPSS_LISTEN 3 /* Listening for an Authenticate */
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88 | #define UPAPSS_OPEN 4 /* We've sent an Ack */
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89 | #define UPAPSS_BADAUTH 5 /* We've sent a Nak */
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90 |
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91 |
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92 | /*
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93 | * Timeouts.
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94 | */
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95 | #if 0 /* moved to ppp_opts.h */
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96 | #define UPAP_DEFTIMEOUT 3 /* Timeout (seconds) for retransmitting req */
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97 | #define UPAP_DEFREQTIME 30 /* Time to wait for auth-req from peer */
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98 | #endif /* moved to ppp_opts.h */
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99 |
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100 | /*
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101 | * Each interface is described by upap structure.
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102 | */
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103 | #if PAP_SUPPORT
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104 | typedef struct upap_state {
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105 | const char *us_user; /* User */
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106 | u8_t us_userlen; /* User length */
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107 | const char *us_passwd; /* Password */
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108 | u8_t us_passwdlen; /* Password length */
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109 | u8_t us_clientstate; /* Client state */
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110 | #if PPP_SERVER
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111 | u8_t us_serverstate; /* Server state */
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112 | #endif /* PPP_SERVER */
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113 | u8_t us_id; /* Current id */
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114 | u8_t us_transmits; /* Number of auth-reqs sent */
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115 | } upap_state;
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116 | #endif /* PAP_SUPPORT */
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117 |
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118 |
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119 | void upap_authwithpeer(ppp_pcb *pcb, const char *user, const char *password);
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120 | #if PPP_SERVER
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121 | void upap_authpeer(ppp_pcb *pcb);
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122 | #endif /* PPP_SERVER */
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123 |
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124 | extern const struct protent pap_protent;
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125 |
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126 | #ifdef __cplusplus
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127 | }
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128 | #endif
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129 |
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130 | #endif /* UPAP_H */
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131 | #endif /* PPP_SUPPORT && PAP_SUPPORT */
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