2 * $Id: auth.c,v 1.70 2009-11-22 11:52:38 franklahm Exp $
4 * Copyright (c) 1990,1993 Regents of The University of Michigan.
5 * All Rights Reserved. See COPYRIGHT.
10 #endif /* HAVE_CONFIG_H */
17 #endif /* HAVE_UNISTD_H */
18 #include <sys/types.h>
19 #include <sys/param.h>
21 #include <netatalk/endian.h>
22 #include <atalk/afp.h>
23 #include <atalk/compat.h>
24 #include <atalk/util.h>
31 #include <atalk/logger.h>
32 #include <atalk/server_ipc.h>
33 #include <atalk/uuid.h>
37 #include <arpa/inet.h>
41 extern void afp_get_cmdline( int *ac, char ***av );
51 #ifdef HAVE_NFSv4_ACLS
56 static int afp_version_index;
60 #if defined( sun ) && !defined( __svr4__ ) || defined( ultrix )
63 #define GROUPS_SIZE sizeof(int)
65 #else /* sun __svr4__ ultrix */
68 #define GROUPS_SIZE sizeof(gid_t)
69 #endif /* sun ultrix */
74 * These numbers are scattered throughout the code.
76 static struct afp_versions afp_versions[] = {
78 { "AFPVersion 1.1", 11 },
79 { "AFPVersion 2.0", 20 },
80 { "AFPVersion 2.1", 21 },
90 static struct uam_mod uam_modules = {NULL, NULL, &uam_modules, &uam_modules};
91 static struct uam_obj uam_login = {"", "", 0, {{NULL, NULL, NULL, NULL }}, &uam_login,
93 static struct uam_obj uam_changepw = {"", "", 0, {{NULL, NULL, NULL, NULL}}, &uam_changepw,
96 static struct uam_obj *afp_uam = NULL;
99 void status_versions( char *data, const ASP asp, const DSI *dsi)
103 int len, num, i, count = 0;
105 memcpy(&status, start + AFPSTATUS_VERSOFF, sizeof(status));
106 num = sizeof( afp_versions ) / sizeof( afp_versions[ 0 ] );
108 for ( i = 0; i < num; i++ ) {
110 if ( !asp && (afp_versions[ i ].av_number <= 21)) continue;
111 #endif /* ! NO_DDP */
112 if ( !dsi && (afp_versions[ i ].av_number >= 22)) continue;
115 data += ntohs( status );
118 for ( i = 0; i < num; i++ ) {
120 if ( !asp && (afp_versions[ i ].av_number <= 21)) continue;
121 #endif /* ! NO_DDP */
122 if ( !dsi && (afp_versions[ i ].av_number >= 22)) continue;
123 len = strlen( afp_versions[ i ].av_name );
125 memcpy( data, afp_versions[ i ].av_name , len );
128 status = htons( data - start );
129 memcpy(start + AFPSTATUS_UAMSOFF, &status, sizeof(status));
132 void status_uams(char *data, const char *authlist)
136 struct uam_obj *uams;
139 memcpy(&status, start + AFPSTATUS_UAMSOFF, sizeof(status));
141 while ((uams = uams->uam_prev) != &uam_login) {
142 if (strstr(authlist, uams->uam_path))
146 data += ntohs( status );
148 while ((uams = uams->uam_prev) != &uam_login) {
149 if (strstr(authlist, uams->uam_path)) {
150 LOG(log_info, logtype_afpd, "uam: \"%s\" available", uams->uam_name);
151 len = strlen( uams->uam_name);
153 memcpy( data, uams->uam_name, len );
159 status = htons(data - start);
160 memcpy(start + AFPSTATUS_ICONOFF, &status, sizeof(status));
163 /* handle errors by closing the connection. this is only needed
164 * by the afp_* functions. */
165 static int send_reply(const AFPObj *obj, const int err)
167 if ((err == AFP_OK) || (err == AFPERR_AUTHCONT))
170 obj->reply(obj->handle, err);
176 static int afp_errpwdexpired(AFPObj *obj _U_, char *ibuf _U_, size_t ibuflen _U_,
177 char *rbuf _U_, size_t *rbuflen)
180 return AFPERR_PWDEXPR;
183 static int afp_null_nolog(AFPObj *obj _U_, char *ibuf _U_, size_t ibuflen _U_,
184 char *rbuf _U_, size_t *rbuflen)
187 return( AFPERR_NOOP );
190 static int set_auth_switch(int expired)
196 * BF: expired password handling
197 * to allow the user to change his/her password we have to allow login
198 * but every following call except for FPChangePassword will be thrown
199 * away with an AFPERR_PWDEXPR error. (thanks to Leland Wallace from Apple
200 * for clarifying this)
203 for (i=0; i<=0xff; i++) {
204 uam_afpserver_action(i, UAM_AFPSERVER_PREAUTH, afp_errpwdexpired, NULL);
206 uam_afpserver_action(AFP_LOGOUT, UAM_AFPSERVER_PREAUTH, afp_logout, NULL);
207 uam_afpserver_action(AFP_CHANGEPW, UAM_AFPSERVER_PREAUTH, afp_changepw, NULL);
210 afp_switch = postauth_switch;
211 switch (afp_version) {
213 #ifdef HAVE_NFSv4_ACLS
214 uam_afpserver_action(AFP_GETACL, UAM_AFPSERVER_POSTAUTH, afp_getacl, NULL);
215 uam_afpserver_action(AFP_SETACL, UAM_AFPSERVER_POSTAUTH, afp_setacl, NULL);
216 uam_afpserver_action(AFP_ACCESS, UAM_AFPSERVER_POSTAUTH, afp_access, NULL);
218 uam_afpserver_action(AFP_GETEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_getextattr, NULL);
219 uam_afpserver_action(AFP_SETEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_setextattr, NULL);
220 uam_afpserver_action(AFP_REMOVEATTR, UAM_AFPSERVER_POSTAUTH, afp_remextattr, NULL);
221 uam_afpserver_action(AFP_LISTEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_listextattr, NULL);
223 uam_afpserver_action(AFP_SYNCDIR, UAM_AFPSERVER_POSTAUTH, afp_syncdir, NULL);
224 uam_afpserver_action(AFP_SYNCFORK, UAM_AFPSERVER_POSTAUTH, afp_syncfork, NULL);
225 uam_afpserver_action(AFP_SPOTLIGHT_PRIVATE, UAM_AFPSERVER_POSTAUTH, afp_null_nolog, NULL);
226 uam_afpserver_action(AFP_ENUMERATE_EXT2, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext2, NULL);
228 uam_afpserver_action(AFP_ENUMERATE_EXT, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext, NULL);
229 uam_afpserver_action(AFP_BYTELOCK_EXT, UAM_AFPSERVER_POSTAUTH, afp_bytelock_ext, NULL);
230 /* catsearch_ext uses the same packet as catsearch FIXME double check this, it wasn't true for enue
232 uam_afpserver_action(AFP_CATSEARCH_EXT, UAM_AFPSERVER_POSTAUTH, afp_catsearch_ext, NULL);
233 uam_afpserver_action(AFP_GETSESSTOKEN, UAM_AFPSERVER_POSTAUTH, afp_getsession, NULL);
234 uam_afpserver_action(AFP_READ_EXT, UAM_AFPSERVER_POSTAUTH, afp_read_ext, NULL);
235 uam_afpserver_action(AFP_WRITE_EXT, UAM_AFPSERVER_POSTAUTH, afp_write_ext, NULL);
236 uam_afpserver_action(AFP_DISCTOLDSESS, UAM_AFPSERVER_POSTAUTH, afp_disconnect, NULL);
240 * If first connection to a server is done in classic AFP2.2 version is used
241 * but OSX uses AFP3.x FPzzz command !
243 uam_afpserver_action(AFP_ZZZ, UAM_AFPSERVER_POSTAUTH, afp_zzz, NULL);
251 static int login(AFPObj *obj, struct passwd *pwd, void (*logout)(void), int expired)
255 #endif /* ADMIN_GRP */
258 set_processname("afpd");
261 if ( pwd->pw_uid == 0 ) { /* don't allow root login */
262 LOG(log_error, logtype_afpd, "login: root login denied!" );
263 return AFPERR_NOTAUTH;
266 LOG(log_info, logtype_afpd, "login %s (uid %d, gid %d) %s", pwd->pw_name,
267 pwd->pw_uid, pwd->pw_gid , afp_versions[afp_version_index].av_name);
270 if (obj->proto == AFPPROTO_ASP) {
271 ASP asp = obj->handle;
272 int addr_net = ntohs( asp->asp_sat.sat_addr.s_net );
273 int addr_node = asp->asp_sat.sat_addr.s_node;
275 if (obj->options.authprintdir) {
276 if(addr_net && addr_node) { /* Do we have a valid Appletalk address? */
279 int mypid = getpid();
280 struct stat stat_buf;
282 sprintf(nodename, "%s/net%d.%dnode%d", obj->options.authprintdir,
283 addr_net / 256, addr_net % 256, addr_node);
284 LOG(log_info, logtype_afpd, "registering %s (uid %d) on %u.%u as %s",
285 pwd->pw_name, pwd->pw_uid, addr_net, addr_node, nodename);
287 if (stat(nodename, &stat_buf) == 0) { /* file exists */
288 if (S_ISREG(stat_buf.st_mode)) { /* normal file */
290 fp = fopen(nodename, "w");
291 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
293 chown( nodename, pwd->pw_uid, -1 );
294 } else { /* somebody is messing with us */
295 LOG(log_error, logtype_afpd, "print authfile %s is not a normal file, it will not be modified", nodename );
297 } else { /* file 'nodename' does not exist */
298 fp = fopen(nodename, "w");
299 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
301 chown( nodename, pwd->pw_uid, -1 );
303 } /* if (addr_net && addr_node ) */
304 } /* if (options->authprintdir) */
305 } /* if (obj->proto == AFPPROTO_ASP) */
308 if (initgroups( pwd->pw_name, pwd->pw_gid ) < 0) {
310 LOG(log_info, logtype_afpd, "running with uid %d", geteuid());
311 #else /* RUN_AS_USER */
312 LOG(log_error, logtype_afpd, "login: %s", strerror(errno));
313 return AFPERR_BADUAM;
314 #endif /* RUN_AS_USER */
318 /* Basically if the user is in the admin group, we stay root */
320 if (( ngroups = getgroups( 0, NULL )) < 0 ) {
321 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
322 return AFPERR_BADUAM;
325 if ( NULL == (groups = calloc(ngroups, GROUPS_SIZE)) ) {
326 LOG(log_error, logtype_afpd, "login: %s calloc: %d", ngroups);
327 return AFPERR_BADUAM;
330 if (( ngroups = getgroups( ngroups, groups )) < 0 ) {
331 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
332 return AFPERR_BADUAM;
336 LOG(log_debug, logtype_afpd, "obj->options.admingid == %d", obj->options.admingid);
338 if (obj->options.admingid != 0) {
340 for (i = 0; i < ngroups; i++) {
341 if (groups[i] == obj->options.admingid) admin = 1;
346 LOG(log_info, logtype_afpd, "admin login -- %s", pwd->pw_name );
349 #endif /* ADMIN_GRP */
352 struct DSI *dsi = obj->handle;
359 afp_get_cmdline( &argc, &argv );
361 hp = gethostbyaddr( (char *) &dsi->client.sin_addr,
362 sizeof( struct in_addr ),
363 dsi->client.sin_family );
366 clientname = hp->h_name;
368 clientname = inet_ntoa( dsi->client.sin_addr );
370 sprintf( hostname, "%s@%s", pwd->pw_name, clientname );
372 if( sia_become_user( NULL, argc, argv, hostname, pwd->pw_name,
373 NULL, FALSE, NULL, NULL,
374 SIA_BEU_REALLOGIN ) != SIASUCCESS )
375 return AFPERR_BADUAM;
377 LOG(log_info, logtype_afpd, "session from %s (%s)", hostname,
378 inet_ntoa( dsi->client.sin_addr ) );
380 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
381 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
382 return AFPERR_BADUAM;
386 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
387 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
388 return AFPERR_BADUAM;
392 /* There's probably a better way to do this, but for now, we just
398 #endif /* ADMIN_GRP */
401 set_auth_switch(expired);
402 /* save our euid, we need it for preexec_close */
403 obj->uid = geteuid();
404 obj->logout = logout;
408 save_uidgid ( &obj->uidgid );
414 /* ---------------------- */
415 int afp_zzz ( /* Function 122 */
417 char *ibuf _U_, size_t ibuflen _U_,
418 char *rbuf, size_t *rbuflen)
424 retdata = obj->options.sleep /120;
428 *rbuflen = sizeof(retdata);
429 retdata = htonl(retdata);
430 memcpy(rbuf, &retdata, sizeof(retdata));
433 rbuf += sizeof(retdata);
437 /* ---------------------- */
438 static int create_session_token(AFPObj *obj)
442 /* use 8 bytes for token as OSX, don't know if it helps */
443 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
444 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
448 if ( NULL == (obj->sinfo.sessiontoken = malloc(SESSIONTOKEN_LEN)) )
451 memset(obj->sinfo.sessiontoken, 0, SESSIONTOKEN_LEN);
452 obj->sinfo.sessiontoken_len = SESSIONTOKEN_LEN;
454 memcpy(obj->sinfo.sessiontoken, &pid, sizeof(pid_t));
459 static int create_session_key(AFPObj *obj)
461 /* create session key */
462 if (obj->sinfo.sessionkey == NULL) {
463 if (NULL == (obj->sinfo.sessionkey = malloc(SESSIONKEY_LEN)) )
465 uam_random_string(obj, obj->sinfo.sessionkey, SESSIONKEY_LEN);
466 obj->sinfo.sessionkey_len = SESSIONKEY_LEN;
472 /* ---------------------- */
475 char *ibuf, size_t ibuflen,
476 char *rbuf, size_t *rbuflen)
488 if (ibuflen < 2 + sizeof(type)) {
495 memcpy(&type, ibuf, sizeof(type));
497 ibuf += sizeof(type);
498 ibuflen -= sizeof(type);
500 if ( obj->sinfo.sessiontoken == NULL ) {
501 if ( create_session_token( obj ) )
509 case 0: /* old version ?*/
510 tklen = obj->sinfo.sessiontoken_len;
511 token = obj->sinfo.sessiontoken;
513 case 1: /* disconnect */
514 case 2: /* reconnect update id */
515 if (ibuflen >= sizeof(idlen)) {
516 memcpy(&idlen, ibuf, sizeof(idlen));
517 idlen = ntohl(idlen);
518 ibuf += sizeof(idlen);
519 ibuflen -= sizeof(idlen);
520 if (ibuflen < idlen) {
523 /* memcpy (id, ibuf, idlen) */
524 tklen = obj->sinfo.sessiontoken_len;
525 token = obj->sinfo.sessiontoken;
532 memcpy( &idlen, ibuf, sizeof(idlen));
533 idlen = ntohl(idlen);
534 ibuf += sizeof(idlen);
535 ibuflen -= sizeof(idlen);
536 ibuf += sizeof(boottime);
537 ibuflen -= sizeof(boottime);
538 if (ibuflen < idlen || idlen > (90-10)) {
541 server_ipc_write(IPC_GETSESSION, idlen+8, p );
542 tklen = obj->sinfo.sessiontoken_len;
543 token = obj->sinfo.sessiontoken;
546 case 8: /* Panther Kerberos Token */
547 tklen = obj->sinfo.cryptedkey_len;
548 token = obj->sinfo.cryptedkey;
560 memcpy(rbuf, &tp, sizeof(tklen));
561 rbuf += sizeof(tklen);
562 *rbuflen += sizeof(tklen);
564 memcpy(rbuf, token, tklen);
570 /* ---------------------- */
571 int afp_disconnect(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
583 /* check for guest user */
584 if ( 0 == (strcasecmp(obj->username, obj->options.guest)) ) {
589 memcpy(&type, ibuf, sizeof(type));
591 ibuf += sizeof(type);
593 memcpy(&tklen, ibuf, sizeof(tklen));
594 tklen = ntohl(tklen);
595 ibuf += sizeof(tklen);
597 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
598 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
601 if (tklen != SESSIONTOKEN_LEN) {
604 tklen = sizeof(pid_t);
605 memcpy(&token, ibuf, tklen);
607 /* our stuff is pid + zero pad */
609 for (i = tklen; i < SESSIONTOKEN_LEN; i++, ibuf++) {
615 /* killed old session, not easy */
616 server_ipc_write(IPC_KILLTOKEN, tklen, &token);
619 return AFPERR_SESSCLOS; /* was AFP_OK */
622 /* ---------------------- */
623 static int get_version(AFPObj *obj, char *ibuf, size_t ibuflen, size_t len)
627 if (!len || len > ibuflen)
628 return AFPERR_BADVERS;
630 num = sizeof( afp_versions ) / sizeof( afp_versions[ 0 ]);
631 for ( i = 0; i < num; i++ ) {
632 if ( strncmp( ibuf, afp_versions[ i ].av_name , len ) == 0 ) {
633 afp_version = afp_versions[ i ].av_number;
634 afp_version_index = i;
638 if ( i == num ) /* An inappropo version */
639 return AFPERR_BADVERS ;
641 if (afp_version >= 30 && obj->proto != AFPPROTO_DSI)
642 return AFPERR_BADVERS ;
645 if (afp_version >= 30 && sizeof(off_t) != 8) {
646 LOG(log_error, logtype_afpd, "get_version: no LARGE_FILE support recompile!" );
647 return AFPERR_BADVERS ;
653 /* ---------------------- */
654 int afp_login(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
656 struct passwd *pwd = NULL;
663 return send_reply(obj, AFPERR_SHUTDOWN );
666 return send_reply(obj, AFPERR_BADVERS );
669 len = (unsigned char) *ibuf++;
672 i = get_version(obj, ibuf, ibuflen, len);
674 return send_reply(obj, i );
677 return send_reply(obj, AFPERR_BADUAM);
682 len = (unsigned char) *ibuf++;
685 if (!len || len > ibuflen)
686 return send_reply(obj, AFPERR_BADUAM);
688 if (NULL == (afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) )
689 return send_reply(obj, AFPERR_BADUAM);
693 if (AFP_OK != (i = create_session_key(obj)) )
694 return send_reply(obj, i);
696 i = afp_uam->u.uam_login.login(obj, &pwd, ibuf, ibuflen, rbuf, rbuflen);
698 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
699 return send_reply(obj, i);
701 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
704 /* ---------------------- */
705 int afp_login_ext(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
707 struct passwd *pwd = NULL;
717 return send_reply(obj, AFPERR_SHUTDOWN );
720 return send_reply(obj, AFPERR_BADVERS );
726 len = (unsigned char) *ibuf;
730 i = get_version(obj, ibuf, ibuflen, len);
732 return send_reply(obj, i );
735 return send_reply(obj, AFPERR_BADUAM);
740 len = (unsigned char) *ibuf;
744 if (!len || len > ibuflen)
745 return send_reply(obj, AFPERR_BADUAM);
747 if ((afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) == NULL)
748 return send_reply(obj, AFPERR_BADUAM);
752 if (!afp_uam->u.uam_login.login_ext) {
753 LOG(log_error, logtype_afpd, "login_ext: uam %s not AFP 3 ready!", afp_uam->uam_name );
754 return send_reply(obj, AFPERR_BADUAM);
757 if (ibuflen <= 1 +sizeof(len16))
758 return send_reply(obj, AFPERR_PARAM);
764 return send_reply(obj, AFPERR_PARAM);
766 memcpy(&len16, ibuf, sizeof(len16));
767 ibuf += sizeof(len16);
768 ibuflen -= sizeof(len16);
771 return send_reply(obj, AFPERR_PARAM);
775 /* directory service name */
777 return send_reply(obj, AFPERR_PARAM);
786 return send_reply(obj, AFPERR_PARAM);
787 len = (unsigned char) *ibuf;
792 /* With "No User Authen" it is equal */
793 if (ibuflen < sizeof(len16))
794 return send_reply(obj, AFPERR_PARAM);
795 memcpy(&len16, ibuf, sizeof(len16));
796 ibuf += sizeof(len16);
797 ibuflen -= sizeof(len16);
801 return send_reply(obj, AFPERR_PARAM);
805 LOG(log_error, logtype_afpd, "login_ext: directory service path not null!" );
806 return send_reply(obj, AFPERR_PARAM);
813 if (ibuflen && ((unsigned long) ibuf & 1)) { /* pad character */
818 if (AFP_OK != (i = create_session_key(obj)) ) {
819 return send_reply(obj, i);
822 /* FIXME user name are in UTF8 */
823 i = afp_uam->u.uam_login.login_ext(obj, username, &pwd, ibuf, ibuflen, rbuf, rbuflen);
825 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
826 return send_reply(obj, i);
828 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
831 /* ---------------------- */
832 int afp_logincont(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
834 struct passwd *pwd = NULL;
837 if ( afp_uam == NULL || afp_uam->u.uam_login.logincont == NULL || ibuflen < 2 ) {
839 return send_reply(obj, AFPERR_NOTAUTH );
842 ibuf += 2; ibuflen -= 2;
843 err = afp_uam->u.uam_login.logincont(obj, &pwd, ibuf, ibuflen,
845 if (!pwd || ( err != AFP_OK && err != AFPERR_PWDEXPR))
846 return send_reply(obj, err);
848 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((err==AFPERR_PWDEXPR)?1:0)));
852 int afp_logout(AFPObj *obj, char *ibuf _U_, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen _U_)
854 LOG(log_info, logtype_afpd, "logout %s", obj->username);
862 /* change password --
863 * NOTE: an FPLogin must already have completed successfully for this
864 * to work. this also does a little pre-processing before it hands
867 int afp_changepw(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
869 char username[MACFILELEN + 1], *start = ibuf;
878 /* check if password change is allowed, OS-X ignores the flag.
879 * we shouldn't trust the client on this anyway.
880 * not sure about the "right" error code, NOOP for now */
881 if (!(obj->options.passwdbits & PASSWD_SET))
884 /* make sure we can deal w/ this uam */
885 len = (unsigned char) *ibuf++;
886 if ((uam = auth_uamfind(UAM_SERVER_CHANGEPW, ibuf, len)) == NULL)
887 return AFPERR_BADUAM;
890 if ((len + 1) & 1) /* pad byte */
893 if ( afp_version < 30) {
894 len = (unsigned char) *ibuf++;
895 if ( len > sizeof(username) - 1) {
898 memcpy(username, ibuf, len);
899 username[ len ] = '\0';
901 if ((len + 1) & 1) /* pad byte */
904 /* AFP > 3.0 doesn't pass the username, APF 3.1 specs page 124 */
905 if ( ibuf[0] != '\0' || ibuf[1] != '\0')
908 len = MIN(sizeof(username), strlen(obj->username));
909 memcpy(username, obj->username, len);
910 username[ len ] = '\0';
914 LOG(log_info, logtype_afpd, "changing password for <%s>", username);
916 if (( pwd = uam_getname( obj, username, sizeof(username))) == NULL )
919 /* send it off to the uam. we really don't use ibuflen right now. */
920 if (ibuflen < (size_t)(ibuf - start))
923 ibuflen -= (ibuf - start);
924 ret = uam->u.uam_changepw(obj, username, pwd, ibuf, ibuflen,
926 LOG(log_info, logtype_afpd, "password change %s.",
927 (ret == AFPERR_AUTHCONT) ? "continued" :
928 (ret ? "failed" : "succeeded"));
937 int afp_getuserinfo(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
943 LOG(log_debug, logtype_afpd, "begin afp_getuserinfo:");
948 ibuf += sizeof(id); /* userid is not used in AFP 2.0 */
949 memcpy(&bitmap, ibuf, sizeof(bitmap));
950 bitmap = ntohs(bitmap);
952 /* deal with error cases. we don't have to worry about
953 * AFPERR_ACCESS or AFPERR_NOITEM as geteuid and getegid always
957 if ((bitmap & USERIBIT_ALL) != bitmap)
958 return AFPERR_BITMAP;
960 /* copy the bitmap back to reply buffer */
961 memcpy(rbuf, ibuf, sizeof(bitmap));
962 rbuf += sizeof(bitmap);
963 *rbuflen = sizeof(bitmap);
965 /* copy the user/group info */
966 if (bitmap & USERIBIT_USER) {
967 id = htonl(geteuid());
968 memcpy(rbuf, &id, sizeof(id));
970 *rbuflen += sizeof(id);
973 if (bitmap & USERIBIT_GROUP) {
974 id = htonl(getegid());
975 memcpy(rbuf, &id, sizeof(id));
977 *rbuflen += sizeof(id);
980 #ifdef HAVE_NFSv4_ACLS
981 if (bitmap & USERIBIT_UUID) {
986 if ( ! (obj->options.flags & OPTION_UUID))
987 return AFPERR_BITMAP;
988 LOG(log_debug, logtype_afpd, "afp_getuserinfo: get UUID for \'%s\'", obj->username);
989 ret = getuuidfromname( obj->username, UUID_USER, uuid);
991 LOG(log_info, logtype_afpd, "afp_getuserinfo: error getting UUID !");
992 return AFPERR_NOITEM;
994 if (0 == (uuid_bin2string( uuid, &uuidstring))) {
995 LOG(log_debug, logtype_afpd, "afp_getuserinfo: got UUID: %s", uuidstring);
998 memcpy(rbuf, uuid, UUID_BINSIZE);
999 rbuf += UUID_BINSIZE;
1000 *rbuflen += UUID_BINSIZE;
1004 LOG(log_debug, logtype_afpd, "END afp_getuserinfo:");
1008 #define UAM_LIST(type) (((type) == UAM_SERVER_LOGIN || (type) == UAM_SERVER_LOGIN_EXT) ? &uam_login : \
1009 (((type) == UAM_SERVER_CHANGEPW) ? \
1010 &uam_changepw : NULL))
1012 /* just do a linked list search. this could be sped up with a hashed
1013 * list, but i doubt anyone's going to have enough uams to matter. */
1014 struct uam_obj *auth_uamfind(const int type, const char *name,
1017 struct uam_obj *prev, *start;
1019 if (!name || !(start = UAM_LIST(type)))
1023 while ((prev = prev->uam_prev) != start)
1024 if (strndiacasecmp(prev->uam_name, name, len) == 0)
1030 int auth_register(const int type, struct uam_obj *uam)
1032 struct uam_obj *start;
1034 if (!uam || !uam->uam_name || (*uam->uam_name == '\0'))
1037 if (!(start = UAM_LIST(type)))
1038 return 1; /* we don't know what to do with it, caller must free it */
1040 uam_attach(start, uam);
1044 /* load all of the modules */
1045 int auth_load(const char *path, const char *list)
1047 char name[MAXPATHLEN + 1], buf[MAXPATHLEN + 1], *p;
1048 struct uam_mod *mod;
1052 if (!path || !*path || !list || (len = strlen(path)) > sizeof(name) - 2)
1055 strlcpy(buf, list, sizeof(buf));
1056 if ((p = strtok(buf, ",")) == NULL)
1060 if (name[len - 1] != '/') {
1066 strlcpy(name + len, p, sizeof(name) - len);
1067 LOG(log_debug, logtype_afpd, "uam: loading (%s)", name);
1069 if ((stat(name, &st) == 0) && (mod = uam_load(name, p))) {
1071 if (stat(name, &st) == 0) {
1072 if ((mod = uam_load(name, p))) {
1073 uam_attach(&uam_modules, mod);
1074 LOG(log_info, logtype_afpd, "uam: %s loaded", p);
1076 LOG(log_info, logtype_afpd, "uam: %s load failure",p);
1079 LOG(log_info, logtype_afpd, "uam: uam not found (status=%d)", stat(name, &st));
1081 p = strtok(NULL, ",");
1087 /* get rid of all of the uams */
1088 void auth_unload(void)
1090 struct uam_mod *mod, *prev, *start = &uam_modules;
1092 prev = start->uam_prev;
1093 while ((mod = prev) != start) {
1094 prev = prev->uam_prev;