2 * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
3 * based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
4 * Internet Initiative Japan, Inc (IIJ)
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * $FreeBSD: src/usr.sbin/ppp/auth.c,v 1.50.2.2 2002/09/01 02:12:22 brian Exp $
29 * $DragonFly: src/usr.sbin/ppp/auth.c,v 1.2 2003/06/17 04:30:00 dillon Exp $
32 #include <sys/param.h>
33 #include <netinet/in.h>
34 #include <netinet/in_systm.h>
35 #include <netinet/ip.h>
36 #include <sys/socket.h>
52 #include "throughput.h"
53 #include "slcompress.h"
63 #include "descriptor.h"
81 Auth2Nam(u_short auth, u_char type)
89 snprintf(chap, sizeof chap, "CHAP 0x%02x", type);
98 auth_CheckPasswd(const char *name, const char *data, const char *key)
104 if (!strcmp(data, "*")) {
105 /* Then look up the real password database */
109 cryptpw = crypt(key, pw->pw_passwd);
111 result = (cryptpw != NULL) && !strcmp(cryptpw, pw->pw_passwd);
119 return !strcmp(data, key);
123 auth_SetPhoneList(const char *name, char *phone, int phonelen)
127 char *vector[6], buff[LINE_LEN];
130 fp = OpenSecret(SECRETFILE);
134 while (fgets(buff, sizeof buff, fp)) {
138 buff[strlen(buff) - 1] = '\0';
139 memset(vector, '\0', sizeof vector);
140 if ((n = MakeArgs(buff, vector, VECSIZE(vector), PARSE_REDUCE)) < 0)
141 log_Printf(LogWARN, "%s: %d: Invalid line\n", SECRETFILE, lineno);
144 if (strcmp(vector[0], name) == 0) {
146 if (*vector[4] == '\0')
148 strncpy(phone, vector[4], phonelen - 1);
149 phone[phonelen - 1] = '\0';
150 return 1; /* Valid */
154 if ((slash = strrchr(name, '\\')) != NULL && slash[1]) {
155 /* Look for the name without the leading domain */
168 auth_Select(struct bundle *bundle, const char *name)
172 char *vector[5], buff[LINE_LEN];
176 ipcp_Setup(&bundle->ncp.ipcp, INADDR_NONE);
181 if (bundle->radius.valid && bundle->radius.ip.s_addr != INADDR_NONE &&
182 bundle->radius.ip.s_addr != RADIUS_INADDR_POOL) {
183 /* We've got a radius IP - it overrides everything */
184 if (!ipcp_UseHisIPaddr(bundle, bundle->radius.ip))
186 ipcp_Setup(&bundle->ncp.ipcp, bundle->radius.mask.s_addr);
187 /* Continue with ppp.secret in case we've got a new label */
191 fp = OpenSecret(SECRETFILE);
195 while (fgets(buff, sizeof buff, fp)) {
199 buff[strlen(buff) - 1] = '\0';
200 memset(vector, '\0', sizeof vector);
201 if ((n = MakeArgs(buff, vector, VECSIZE(vector), PARSE_REDUCE)) < 0)
202 log_Printf(LogWARN, "%s: %d: Invalid line\n", SECRETFILE, lineno);
205 if (strcmp(vector[0], name) == 0) {
208 if (!bundle->radius.valid || bundle->radius.ip.s_addr == INADDR_NONE) {
210 if (n > 2 && *vector[2] && strcmp(vector[2], "*") &&
211 !ipcp_UseHisaddr(bundle, vector[2], 1))
213 ipcp_Setup(&bundle->ncp.ipcp, INADDR_NONE);
217 if (n > 3 && *vector[3] && strcmp(vector[3], "*"))
218 bundle_SetLabel(bundle, vector[3]);
219 return 1; /* Valid */
223 if ((slash = strrchr(name, '\\')) != NULL && slash[1]) {
224 /* Look for the name without the leading domain */
234 /* Let 'em in anyway - they must have been in the passwd file */
235 ipcp_Setup(&bundle->ncp.ipcp, INADDR_NONE);
239 if (bundle->radius.valid)
243 /* Disappeared from ppp.secret ??? */
249 auth_Validate(struct bundle *bundle, const char *name, const char *key)
251 /* Used by PAP routines */
255 char *vector[5], buff[LINE_LEN];
258 fp = OpenSecret(SECRETFILE);
262 while (fgets(buff, sizeof buff, fp)) {
266 buff[strlen(buff) - 1] = 0;
267 memset(vector, '\0', sizeof vector);
268 if ((n = MakeArgs(buff, vector, VECSIZE(vector), PARSE_REDUCE)) < 0)
269 log_Printf(LogWARN, "%s: %d: Invalid line\n", SECRETFILE, lineno);
272 if (strcmp(vector[0], name) == 0) {
274 return auth_CheckPasswd(name, vector[1], key);
279 if ((slash = strrchr(name, '\\')) != NULL && slash[1]) {
280 /* Look for the name without the leading domain */
292 if (Enabled(bundle, OPT_PASSWDAUTH))
293 return auth_CheckPasswd(name, "*", key);
296 return 0; /* Invalid */
300 auth_GetSecret(const char *name, size_t len)
302 /* Used by CHAP routines */
308 static char buff[LINE_LEN]; /* vector[] will point here when returned */
310 fp = OpenSecret(SECRETFILE);
316 while (fgets(buff, sizeof buff, fp)) {
320 n = strlen(buff) - 1;
322 buff[n] = '\0'; /* Trim the '\n' */
323 memset(vector, '\0', sizeof vector);
324 if ((n = MakeArgs(buff, vector, VECSIZE(vector), PARSE_REDUCE)) < 0)
325 log_Printf(LogWARN, "%s: %d: Invalid line\n", SECRETFILE, lineno);
328 if (strlen(vector[0]) == len && strncmp(vector[0], name, len) == 0) {
334 if ((slash = strrchr(name, '\\')) != NULL && slash[1]) {
335 /* Go back and look for the name without the leading domain */
336 len -= slash - name + 1;
343 return (NULL); /* Invalid */
347 AuthTimeout(void *vauthp)
349 struct authinfo *authp = (struct authinfo *)vauthp;
351 timer_Stop(&authp->authtimer);
352 if (--authp->retry > 0) {
354 (*authp->fn.req)(authp);
355 timer_Start(&authp->authtimer);
357 log_Printf(LogPHASE, "Auth: No response from server\n");
358 datalink_AuthNotOk(authp->physical->dl);
363 auth_Init(struct authinfo *authp, struct physical *p, auth_func req,
364 auth_func success, auth_func failure)
366 memset(authp, '\0', sizeof(struct authinfo));
367 authp->cfg.fsm.timeout = DEF_FSMRETRY;
368 authp->cfg.fsm.maxreq = DEF_FSMAUTHTRIES;
369 authp->cfg.fsm.maxtrm = 0; /* not used */
371 authp->fn.success = success;
372 authp->fn.failure = failure;
377 auth_StartReq(struct authinfo *authp)
379 timer_Stop(&authp->authtimer);
380 authp->authtimer.func = AuthTimeout;
381 authp->authtimer.name = "auth";
382 authp->authtimer.load = authp->cfg.fsm.timeout * SECTICKS;
383 authp->authtimer.arg = (void *)authp;
384 authp->retry = authp->cfg.fsm.maxreq;
386 (*authp->fn.req)(authp);
387 timer_Start(&authp->authtimer);
391 auth_StopTimer(struct authinfo *authp)
393 timer_Stop(&authp->authtimer);
397 auth_ReadHeader(struct authinfo *authp, struct mbuf *bp)
402 if (len >= sizeof authp->in.hdr) {
403 bp = mbuf_Read(bp, (u_char *)&authp->in.hdr, sizeof authp->in.hdr);
404 if (len >= ntohs(authp->in.hdr.length))
406 authp->in.hdr.length = htons(0);
407 log_Printf(LogWARN, "auth_ReadHeader: Short packet (%u > %zu) !\n",
408 ntohs(authp->in.hdr.length), len);
410 authp->in.hdr.length = htons(0);
411 log_Printf(LogWARN, "auth_ReadHeader: Short packet header (%u > %zu) !\n",
412 (int)(sizeof authp->in.hdr), len);
420 auth_ReadName(struct authinfo *authp, struct mbuf *bp, size_t len)
422 if (len > sizeof authp->in.name - 1)
423 log_Printf(LogWARN, "auth_ReadName: Name too long (%zu) !\n", len);
425 size_t mlen = m_length(bp);
428 log_Printf(LogWARN, "auth_ReadName: Short packet (%zu > %zu) !\n",
431 bp = mbuf_Read(bp, (u_char *)authp->in.name, len);
432 authp->in.name[len] = '\0';
437 *authp->in.name = '\0';