1 /*- 2 * Copyright 1998 Juniper Networks, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef RADLIB_PRIVATE_H 30 #define RADLIB_PRIVATE_H 31 32 #include <sys/types.h> 33 #include <netinet/in.h> 34 35 #include "radlib.h" 36 37 /* Defaults */ 38 #define MAXTRIES 3 39 #define PATH_RADIUS_CONF "/etc/radius.conf" 40 #define RADIUS_PORT 1812 41 #define TIMEOUT 3 /* In seconds */ 42 43 /* Limits */ 44 #define ERRSIZE 128 /* Maximum error message length */ 45 #define MAXCONFLINE 1024 /* Maximum config file line length */ 46 #define MAXSERVERS 10 /* Maximum number of servers to try */ 47 #define MSGSIZE 4096 /* Maximum RADIUS message */ 48 #define PASSSIZE 128 /* Maximum significant password chars */ 49 50 /* Positions of fields in RADIUS messages */ 51 #define POS_CODE 0 /* Message code */ 52 #define POS_IDENT 1 /* Identifier */ 53 #define POS_LENGTH 2 /* Message length */ 54 #define POS_AUTH 4 /* Authenticator */ 55 #define LEN_AUTH 16 /* Length of authenticator */ 56 #define POS_ATTRS 20 /* Start of attributes */ 57 58 struct rad_server { 59 struct sockaddr_in addr; /* Address of server */ 60 char *secret; /* Shared secret */ 61 int timeout; /* Timeout in seconds */ 62 int max_tries; /* Number of tries before giving up */ 63 int num_tries; /* Number of tries so far */ 64 }; 65 66 struct rad_handle { 67 int fd; /* Socket file descriptor */ 68 struct rad_server servers[MAXSERVERS]; /* Servers to contact */ 69 int num_servers; /* Number of valid server entries */ 70 int ident; /* Current identifier value */ 71 char errmsg[ERRSIZE]; /* Most recent error message */ 72 unsigned char request[MSGSIZE]; /* Request to send */ 73 int req_len; /* Length of request */ 74 char pass[PASSSIZE]; /* Cleartext password */ 75 int pass_len; /* Length of cleartext password */ 76 int pass_pos; /* Position of scrambled password */ 77 char chap_pass; /* Have we got a CHAP_PASSWORD ? */ 78 unsigned char response[MSGSIZE]; /* Response received */ 79 int resp_len; /* Length of response */ 80 int resp_pos; /* Current position scanning attrs */ 81 int total_tries; /* How many requests we'll send */ 82 int try; /* How many requests we've sent */ 83 int srv; /* Server number we did last */ 84 }; 85 86 #endif 87