2 * Copyright (c) 1990,1993 Regents of The University of Michigan.
3 * All Rights Reserved. See COPYRIGHT.
8 #endif /* HAVE_CONFIG_H */
15 #endif /* HAVE_UNISTD_H */
16 #include <sys/types.h>
17 #include <sys/param.h>
19 #include <netatalk/endian.h>
20 #include <atalk/afp.h>
21 #include <atalk/compat.h>
22 #include <atalk/util.h>
32 #include <arpa/inet.h>
36 extern void afp_get_cmdline( int *ac, char ***av );
39 #include <atalk/logger.h>
40 #include <atalk/server_ipc.h>
41 #include <atalk/uuid.h>
55 static int afp_version_index;
59 #if defined( sun ) && !defined( __svr4__ ) || defined( ultrix )
62 #define GROUPS_SIZE sizeof(int)
64 #else /* sun __svr4__ ultrix */
67 #define GROUPS_SIZE sizeof(gid_t)
68 #endif /* sun ultrix */
73 * These numbers are scattered throughout the code.
75 static struct afp_versions afp_versions[] = {
77 { "AFPVersion 1.1", 11 },
78 { "AFPVersion 2.0", 20 },
79 { "AFPVersion 2.1", 21 },
88 static struct uam_mod uam_modules = {NULL, NULL, &uam_modules, &uam_modules};
89 static struct uam_obj uam_login = {"", "", 0, {{NULL, NULL, NULL, NULL }}, &uam_login,
91 static struct uam_obj uam_changepw = {"", "", 0, {{NULL, NULL, NULL, NULL}}, &uam_changepw,
94 static struct uam_obj *afp_uam = NULL;
97 void status_versions( char *data, const ASP asp, const DSI *dsi)
101 int len, num, i, count = 0;
103 memcpy(&status, start + AFPSTATUS_VERSOFF, sizeof(status));
104 num = sizeof( afp_versions ) / sizeof( afp_versions[ 0 ] );
106 for ( i = 0; i < num; i++ ) {
108 if ( !asp && (afp_versions[ i ].av_number <= 21)) continue;
109 #endif /* ! NO_DDP */
110 if ( !dsi && (afp_versions[ i ].av_number >= 22)) continue;
113 data += ntohs( status );
116 for ( i = 0; i < num; i++ ) {
118 if ( !asp && (afp_versions[ i ].av_number <= 21)) continue;
119 #endif /* ! NO_DDP */
120 if ( !dsi && (afp_versions[ i ].av_number >= 22)) continue;
121 len = strlen( afp_versions[ i ].av_name );
123 memcpy( data, afp_versions[ i ].av_name , len );
126 status = htons( data - start );
127 memcpy(start + AFPSTATUS_UAMSOFF, &status, sizeof(status));
130 void status_uams(char *data, const char *authlist)
134 struct uam_obj *uams;
137 memcpy(&status, start + AFPSTATUS_UAMSOFF, sizeof(status));
139 while ((uams = uams->uam_prev) != &uam_login) {
140 if (strstr(authlist, uams->uam_path))
144 data += ntohs( status );
146 while ((uams = uams->uam_prev) != &uam_login) {
147 if (strstr(authlist, uams->uam_path)) {
148 LOG(log_info, logtype_afpd, "uam: \"%s\" available", uams->uam_name);
149 len = strlen( uams->uam_name);
151 memcpy( data, uams->uam_name, len );
157 status = htons(data - start);
158 memcpy(start + AFPSTATUS_ICONOFF, &status, sizeof(status));
161 /* handle errors by closing the connection. this is only needed
162 * by the afp_* functions. */
163 static int send_reply(const AFPObj *obj, const int err)
165 if ((err == AFP_OK) || (err == AFPERR_AUTHCONT))
168 obj->reply(obj->handle, err);
174 static int afp_errpwdexpired(AFPObj *obj _U_, char *ibuf _U_, size_t ibuflen _U_,
175 char *rbuf _U_, size_t *rbuflen)
178 return AFPERR_PWDEXPR;
181 static int afp_null_nolog(AFPObj *obj _U_, char *ibuf _U_, size_t ibuflen _U_,
182 char *rbuf _U_, size_t *rbuflen)
185 return( AFPERR_NOOP );
188 static int set_auth_switch(int expired)
194 * BF: expired password handling
195 * to allow the user to change his/her password we have to allow login
196 * but every following call except for FPChangePassword will be thrown
197 * away with an AFPERR_PWDEXPR error. (thanks to Leland Wallace from Apple
198 * for clarifying this)
201 for (i=0; i<=0xff; i++) {
202 uam_afpserver_action(i, UAM_AFPSERVER_PREAUTH, afp_errpwdexpired, NULL);
204 uam_afpserver_action(AFP_LOGOUT, UAM_AFPSERVER_PREAUTH, afp_logout, NULL);
205 uam_afpserver_action(AFP_CHANGEPW, UAM_AFPSERVER_PREAUTH, afp_changepw, NULL);
208 afp_switch = postauth_switch;
209 switch (afp_version) {
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);
217 #endif /* HAVE_ACLS */
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);
224 uam_afpserver_action(AFP_SYNCDIR, UAM_AFPSERVER_POSTAUTH, afp_syncdir, NULL);
225 uam_afpserver_action(AFP_SYNCFORK, UAM_AFPSERVER_POSTAUTH, afp_syncfork, NULL);
226 uam_afpserver_action(AFP_SPOTLIGHT_PRIVATE, UAM_AFPSERVER_POSTAUTH, afp_null_nolog, NULL);
227 uam_afpserver_action(AFP_ENUMERATE_EXT2, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext2, NULL);
230 uam_afpserver_action(AFP_ENUMERATE_EXT, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext, NULL);
231 uam_afpserver_action(AFP_BYTELOCK_EXT, UAM_AFPSERVER_POSTAUTH, afp_bytelock_ext, NULL);
232 /* catsearch_ext uses the same packet as catsearch FIXME double check this, it wasn't true for enue
234 uam_afpserver_action(AFP_CATSEARCH_EXT, UAM_AFPSERVER_POSTAUTH, afp_catsearch_ext, NULL);
235 uam_afpserver_action(AFP_GETSESSTOKEN, UAM_AFPSERVER_POSTAUTH, afp_getsession, NULL);
236 uam_afpserver_action(AFP_READ_EXT, UAM_AFPSERVER_POSTAUTH, afp_read_ext, NULL);
237 uam_afpserver_action(AFP_WRITE_EXT, UAM_AFPSERVER_POSTAUTH, afp_write_ext, NULL);
238 uam_afpserver_action(AFP_DISCTOLDSESS, UAM_AFPSERVER_POSTAUTH, afp_disconnect, NULL);
242 * If first connection to a server is done in classic AFP2.2 version is used
243 * but OSX uses AFP3.x FPzzz command !
245 uam_afpserver_action(AFP_ZZZ, UAM_AFPSERVER_POSTAUTH, afp_zzz, NULL);
253 static int login(AFPObj *obj, struct passwd *pwd, void (*logout)(void), int expired)
257 #endif /* ADMIN_GRP */
260 set_processname("afpd");
263 if ( pwd->pw_uid == 0 ) { /* don't allow root login */
264 LOG(log_error, logtype_afpd, "login: root login denied!" );
265 return AFPERR_NOTAUTH;
268 LOG(log_note, logtype_afpd, "%s Login by %s",
269 afp_versions[afp_version_index].av_name, pwd->pw_name);
272 if (obj->proto == AFPPROTO_ASP) {
273 ASP asp = obj->handle;
274 int addr_net = ntohs( asp->asp_sat.sat_addr.s_net );
275 int addr_node = asp->asp_sat.sat_addr.s_node;
277 if (obj->options.authprintdir) {
278 if(addr_net && addr_node) { /* Do we have a valid Appletalk address? */
281 int mypid = getpid();
282 struct stat stat_buf;
284 sprintf(nodename, "%s/net%d.%dnode%d", obj->options.authprintdir,
285 addr_net / 256, addr_net % 256, addr_node);
286 LOG(log_info, logtype_afpd, "registering %s (uid %d) on %u.%u as %s",
287 pwd->pw_name, pwd->pw_uid, addr_net, addr_node, nodename);
289 if (stat(nodename, &stat_buf) == 0) { /* file exists */
290 if (S_ISREG(stat_buf.st_mode)) { /* normal file */
292 fp = fopen(nodename, "w");
293 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
295 chown( nodename, pwd->pw_uid, -1 );
296 } else { /* somebody is messing with us */
297 LOG(log_error, logtype_afpd, "print authfile %s is not a normal file, it will not be modified", nodename );
299 } else { /* file 'nodename' does not exist */
300 fp = fopen(nodename, "w");
301 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
303 chown( nodename, pwd->pw_uid, -1 );
305 } /* if (addr_net && addr_node ) */
306 } /* if (options->authprintdir) */
307 } /* if (obj->proto == AFPPROTO_ASP) */
310 if (initgroups( pwd->pw_name, pwd->pw_gid ) < 0) {
312 LOG(log_info, logtype_afpd, "running with uid %d", geteuid());
313 #else /* RUN_AS_USER */
314 LOG(log_error, logtype_afpd, "login: %s", strerror(errno));
315 return AFPERR_BADUAM;
316 #endif /* RUN_AS_USER */
320 /* Basically if the user is in the admin group, we stay root */
322 if (( ngroups = getgroups( 0, NULL )) < 0 ) {
323 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
324 return AFPERR_BADUAM;
327 if ( NULL == (groups = calloc(ngroups, GROUPS_SIZE)) ) {
328 LOG(log_error, logtype_afpd, "login: %s calloc: %d", ngroups);
329 return AFPERR_BADUAM;
332 if (( ngroups = getgroups( ngroups, groups )) < 0 ) {
333 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
334 return AFPERR_BADUAM;
338 LOG(log_debug, logtype_afpd, "obj->options.admingid == %d", obj->options.admingid);
340 if (obj->options.admingid != 0) {
342 for (i = 0; i < ngroups; i++) {
343 if (groups[i] == obj->options.admingid) admin = 1;
348 LOG(log_info, logtype_afpd, "admin login -- %s", pwd->pw_name );
351 #endif /* ADMIN_GRP */
354 struct DSI *dsi = obj->handle;
361 afp_get_cmdline( &argc, &argv );
363 hp = gethostbyaddr( (char *) &dsi->client.sin_addr,
364 sizeof( struct in_addr ),
365 dsi->client.sin_family );
368 clientname = hp->h_name;
370 clientname = inet_ntoa( dsi->client.sin_addr );
372 sprintf( hostname, "%s@%s", pwd->pw_name, clientname );
374 if( sia_become_user( NULL, argc, argv, hostname, pwd->pw_name,
375 NULL, FALSE, NULL, NULL,
376 SIA_BEU_REALLOGIN ) != SIASUCCESS )
377 return AFPERR_BADUAM;
379 LOG(log_info, logtype_afpd, "session from %s (%s)", hostname,
380 inet_ntoa( dsi->client.sin_addr ) );
382 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
383 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
384 return AFPERR_BADUAM;
388 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
389 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
390 return AFPERR_BADUAM;
395 #define GROUPSTR_BUFSIZE 1024
396 char groupsstr[GROUPSTR_BUFSIZE];
398 int j = GROUPSTR_BUFSIZE;
400 int n = snprintf(groupsstr, GROUPSTR_BUFSIZE, "%u", groups[0]);
404 for (int i = 1; i < ngroups; i++) {
405 n = snprintf(s, j, ", %u", groups[i]);
408 LOG(log_debug, logtype_afpd, "login: group string buffer overflow");
414 LOG(log_debug, logtype_afpd, "login: %u supplementary groups: %s", ngroups, groupsstr);
417 /* There's probably a better way to do this, but for now, we just play root */
422 #endif /* ADMIN_GRP */
425 set_auth_switch(expired);
426 /* save our euid, we need it for preexec_close */
427 obj->uid = geteuid();
428 obj->logout = logout;
432 save_uidgid ( &obj->uidgid );
438 /* ---------------------- */
439 int afp_zzz ( /* Function 122 */
441 char *ibuf _U_, size_t ibuflen _U_,
442 char *rbuf, size_t *rbuflen)
448 retdata = obj->options.sleep /120;
452 *rbuflen = sizeof(retdata);
453 retdata = htonl(retdata);
454 memcpy(rbuf, &retdata, sizeof(retdata));
457 rbuf += sizeof(retdata);
461 /* ---------------------- */
462 static int create_session_token(AFPObj *obj)
466 /* use 8 bytes for token as OSX, don't know if it helps */
467 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
468 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
472 if ( NULL == (obj->sinfo.sessiontoken = malloc(SESSIONTOKEN_LEN)) )
475 memset(obj->sinfo.sessiontoken, 0, SESSIONTOKEN_LEN);
476 obj->sinfo.sessiontoken_len = SESSIONTOKEN_LEN;
478 memcpy(obj->sinfo.sessiontoken, &pid, sizeof(pid_t));
483 static int create_session_key(AFPObj *obj)
485 /* create session key */
486 if (obj->sinfo.sessionkey == NULL) {
487 if (NULL == (obj->sinfo.sessionkey = malloc(SESSIONKEY_LEN)) )
489 uam_random_string(obj, obj->sinfo.sessionkey, SESSIONKEY_LEN);
490 obj->sinfo.sessionkey_len = SESSIONKEY_LEN;
496 /* ---------------------- */
499 char *ibuf, size_t ibuflen,
500 char *rbuf, size_t *rbuflen)
512 if (ibuflen < 2 + sizeof(type)) {
519 memcpy(&type, ibuf, sizeof(type));
521 ibuf += sizeof(type);
522 ibuflen -= sizeof(type);
524 if ( obj->sinfo.sessiontoken == NULL ) {
525 if ( create_session_token( obj ) )
533 case 0: /* old version ?*/
534 tklen = obj->sinfo.sessiontoken_len;
535 token = obj->sinfo.sessiontoken;
537 case 1: /* disconnect */
538 case 2: /* reconnect update id */
539 if (ibuflen >= sizeof(idlen)) {
540 memcpy(&idlen, ibuf, sizeof(idlen));
541 idlen = ntohl(idlen);
542 ibuf += sizeof(idlen);
543 ibuflen -= sizeof(idlen);
544 if (ibuflen < idlen) {
547 /* memcpy (id, ibuf, idlen) */
548 tklen = obj->sinfo.sessiontoken_len;
549 token = obj->sinfo.sessiontoken;
556 memcpy( &idlen, ibuf, sizeof(idlen));
557 idlen = ntohl(idlen);
558 ibuf += sizeof(idlen);
559 ibuflen -= sizeof(idlen);
560 ibuf += sizeof(boottime);
561 ibuflen -= sizeof(boottime);
562 if (ibuflen < idlen || idlen > (90-10)) {
565 ipc_child_write(obj->ipc_fd, IPC_GETSESSION, idlen+8, p);
566 tklen = obj->sinfo.sessiontoken_len;
567 token = obj->sinfo.sessiontoken;
570 case 8: /* Panther Kerberos Token */
571 tklen = obj->sinfo.cryptedkey_len;
572 token = obj->sinfo.cryptedkey;
584 memcpy(rbuf, &tp, sizeof(tklen));
585 rbuf += sizeof(tklen);
586 *rbuflen += sizeof(tklen);
588 memcpy(rbuf, token, tklen);
594 /* ---------------------- */
595 int afp_disconnect(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
597 DSI *dsi = (DSI *)obj->handle;
607 /* check for guest user */
608 if ( 0 == (strcasecmp(obj->username, obj->options.guest)) ) {
613 memcpy(&type, ibuf, sizeof(type));
615 ibuf += sizeof(type);
617 memcpy(&tklen, ibuf, sizeof(tklen));
618 tklen = ntohl(tklen);
619 ibuf += sizeof(tklen);
621 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
622 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
625 if (tklen != SESSIONTOKEN_LEN) {
628 tklen = sizeof(pid_t);
629 memcpy(&token, ibuf, tklen);
631 /* our stuff is pid + zero pad */
633 for (i = tklen; i < SESSIONTOKEN_LEN; i++, ibuf++) {
639 LOG(log_note, logtype_afpd, "afp_disconnect: trying primary reconnect");
641 /* check for old session, possibly transfering session from here to there */
642 if (ipc_child_write(obj->ipc_fd, IPC_DISCOLDSESSION, tklen, &token) == -1)
644 /* write uint16_t DSI request ID */
645 if (writet(obj->ipc_fd, &dsi->header.dsi_requestID, 2, 0, 2) != 2) {
646 LOG(log_error, logtype_afpd, "afp_disconnect: couldn't send DSI request ID");
649 /* now send our connected AFP client socket */
650 if (send_fd(obj->ipc_fd, dsi->socket) != 0)
652 /* Now see what happens: either afpd master kills us because our session */
653 /* has been transfered to a old disconnected session, or we continue */
657 LOG(log_error, logtype_afpd, "afp_disconnect: primary reconnect failed");
661 /* ---------------------- */
662 static int get_version(AFPObj *obj, char *ibuf, size_t ibuflen, size_t len)
666 if (!len || len > ibuflen)
667 return AFPERR_BADVERS;
669 num = sizeof( afp_versions ) / sizeof( afp_versions[ 0 ]);
670 for ( i = 0; i < num; i++ ) {
671 if ( strncmp( ibuf, afp_versions[ i ].av_name , len ) == 0 ) {
672 afp_version = afp_versions[ i ].av_number;
673 afp_version_index = i;
677 if ( i == num ) /* An inappropo version */
678 return AFPERR_BADVERS ;
680 if (afp_version >= 30 && obj->proto != AFPPROTO_DSI)
681 return AFPERR_BADVERS ;
684 if (afp_version >= 30 && sizeof(off_t) != 8) {
685 LOG(log_error, logtype_afpd, "get_version: no LARGE_FILE support recompile!" );
686 return AFPERR_BADVERS ;
692 /* ---------------------- */
693 int afp_login(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
695 struct passwd *pwd = NULL;
702 return send_reply(obj, AFPERR_SHUTDOWN );
705 return send_reply(obj, AFPERR_BADVERS );
708 len = (unsigned char) *ibuf++;
711 i = get_version(obj, ibuf, ibuflen, len);
713 return send_reply(obj, i );
716 return send_reply(obj, AFPERR_BADUAM);
721 len = (unsigned char) *ibuf++;
724 if (!len || len > ibuflen)
725 return send_reply(obj, AFPERR_BADUAM);
727 if (NULL == (afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) )
728 return send_reply(obj, AFPERR_BADUAM);
732 if (AFP_OK != (i = create_session_key(obj)) )
733 return send_reply(obj, i);
735 i = afp_uam->u.uam_login.login(obj, &pwd, ibuf, ibuflen, rbuf, rbuflen);
737 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
738 return send_reply(obj, i);
740 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
743 /* ---------------------- */
744 int afp_login_ext(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
746 struct passwd *pwd = NULL;
756 return send_reply(obj, AFPERR_SHUTDOWN );
759 return send_reply(obj, AFPERR_BADVERS );
765 len = (unsigned char) *ibuf;
769 i = get_version(obj, ibuf, ibuflen, len);
771 return send_reply(obj, i );
774 return send_reply(obj, AFPERR_BADUAM);
779 len = (unsigned char) *ibuf;
783 if (!len || len > ibuflen)
784 return send_reply(obj, AFPERR_BADUAM);
786 if ((afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) == NULL)
787 return send_reply(obj, AFPERR_BADUAM);
791 if (!afp_uam->u.uam_login.login_ext) {
792 LOG(log_error, logtype_afpd, "login_ext: uam %s not AFP 3 ready!", afp_uam->uam_name );
793 return send_reply(obj, AFPERR_BADUAM);
796 if (ibuflen <= 1 +sizeof(len16))
797 return send_reply(obj, AFPERR_PARAM);
803 return send_reply(obj, AFPERR_PARAM);
805 memcpy(&len16, ibuf, sizeof(len16));
806 ibuf += sizeof(len16);
807 ibuflen -= sizeof(len16);
810 return send_reply(obj, AFPERR_PARAM);
814 /* directory service name */
816 return send_reply(obj, AFPERR_PARAM);
825 return send_reply(obj, AFPERR_PARAM);
826 len = (unsigned char) *ibuf;
831 /* With "No User Authen" it is equal */
832 if (ibuflen < sizeof(len16))
833 return send_reply(obj, AFPERR_PARAM);
834 memcpy(&len16, ibuf, sizeof(len16));
835 ibuf += sizeof(len16);
836 ibuflen -= sizeof(len16);
840 return send_reply(obj, AFPERR_PARAM);
844 LOG(log_error, logtype_afpd, "login_ext: directory service path not null!" );
845 return send_reply(obj, AFPERR_PARAM);
852 if (ibuflen && ((unsigned long) ibuf & 1)) { /* pad character */
857 if (AFP_OK != (i = create_session_key(obj)) ) {
858 return send_reply(obj, i);
861 /* FIXME user name are in UTF8 */
862 i = afp_uam->u.uam_login.login_ext(obj, username, &pwd, ibuf, ibuflen, rbuf, rbuflen);
864 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
865 return send_reply(obj, i);
867 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
870 /* ---------------------- */
871 int afp_logincont(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
873 struct passwd *pwd = NULL;
876 if ( afp_uam == NULL || afp_uam->u.uam_login.logincont == NULL || ibuflen < 2 ) {
878 return send_reply(obj, AFPERR_NOTAUTH );
881 ibuf += 2; ibuflen -= 2;
882 err = afp_uam->u.uam_login.logincont(obj, &pwd, ibuf, ibuflen,
884 if (!pwd || ( err != AFP_OK && err != AFPERR_PWDEXPR))
885 return send_reply(obj, err);
887 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((err==AFPERR_PWDEXPR)?1:0)));
891 int afp_logout(AFPObj *obj, char *ibuf _U_, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen _U_)
893 LOG(log_note, logtype_afpd, "AFP logout by %s", obj->username);
901 /* change password --
902 * NOTE: an FPLogin must already have completed successfully for this
903 * to work. this also does a little pre-processing before it hands
906 int afp_changepw(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
908 char username[MACFILELEN + 1], *start = ibuf;
917 /* check if password change is allowed, OS-X ignores the flag.
918 * we shouldn't trust the client on this anyway.
919 * not sure about the "right" error code, NOOP for now */
920 if (!(obj->options.passwdbits & PASSWD_SET))
923 /* make sure we can deal w/ this uam */
924 len = (unsigned char) *ibuf++;
925 if ((uam = auth_uamfind(UAM_SERVER_CHANGEPW, ibuf, len)) == NULL)
926 return AFPERR_BADUAM;
929 if ((len + 1) & 1) /* pad byte */
932 if ( afp_version < 30) {
933 len = (unsigned char) *ibuf++;
934 if ( len > sizeof(username) - 1) {
937 memcpy(username, ibuf, len);
938 username[ len ] = '\0';
940 if ((len + 1) & 1) /* pad byte */
943 /* AFP > 3.0 doesn't pass the username, APF 3.1 specs page 124 */
944 if ( ibuf[0] != '\0' || ibuf[1] != '\0')
947 len = MIN(sizeof(username), strlen(obj->username));
948 memcpy(username, obj->username, len);
949 username[ len ] = '\0';
953 LOG(log_info, logtype_afpd, "changing password for <%s>", username);
955 if (( pwd = uam_getname( obj, username, sizeof(username))) == NULL )
958 /* send it off to the uam. we really don't use ibuflen right now. */
959 if (ibuflen < (size_t)(ibuf - start))
962 ibuflen -= (ibuf - start);
963 ret = uam->u.uam_changepw(obj, username, pwd, ibuf, ibuflen,
965 LOG(log_info, logtype_afpd, "password change %s.",
966 (ret == AFPERR_AUTHCONT) ? "continued" :
967 (ret ? "failed" : "succeeded"));
976 int afp_getuserinfo(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
983 LOG(log_debug, logtype_afpd, "begin afp_getuserinfo:");
988 ibuf += sizeof(id); /* userid is not used in AFP 2.0 */
989 memcpy(&bitmap, ibuf, sizeof(bitmap));
990 bitmap = ntohs(bitmap);
992 /* deal with error cases. we don't have to worry about
993 * AFPERR_ACCESS or AFPERR_NOITEM as geteuid and getegid always
997 if ((bitmap & USERIBIT_ALL) != bitmap)
998 return AFPERR_BITMAP;
1000 /* remember place where we store the possibly modified bitmap later */
1001 memcpy(rbuf, ibuf, sizeof(bitmap));
1003 rbuf += sizeof(bitmap);
1004 *rbuflen = sizeof(bitmap);
1006 /* copy the user/group info */
1007 if (bitmap & USERIBIT_USER) {
1008 id = htonl(geteuid());
1009 memcpy(rbuf, &id, sizeof(id));
1011 *rbuflen += sizeof(id);
1014 if (bitmap & USERIBIT_GROUP) {
1015 id = htonl(getegid());
1016 memcpy(rbuf, &id, sizeof(id));
1018 *rbuflen += sizeof(id);
1021 if (bitmap & USERIBIT_UUID) {
1022 if ( ! (obj->options.flags & OPTION_UUID)) {
1023 bitmap &= ~USERIBIT_UUID;
1024 bitmap = htons(bitmap);
1025 memcpy(bitmapp, &bitmap, sizeof(bitmap));
1027 LOG(log_debug, logtype_afpd, "afp_getuserinfo: get UUID for \'%s\'", obj->username);
1030 ret = getuuidfromname( obj->username, UUID_USER, uuid);
1032 LOG(log_info, logtype_afpd, "afp_getuserinfo: error getting UUID !");
1033 return AFPERR_NOITEM;
1035 LOG(log_debug, logtype_afpd, "afp_getuserinfo: got UUID: %s", uuid_bin2string(uuid));
1037 memcpy(rbuf, uuid, UUID_BINSIZE);
1038 rbuf += UUID_BINSIZE;
1039 *rbuflen += UUID_BINSIZE;
1043 LOG(log_debug, logtype_afpd, "END afp_getuserinfo:");
1047 #define UAM_LIST(type) (((type) == UAM_SERVER_LOGIN || (type) == UAM_SERVER_LOGIN_EXT) ? &uam_login : \
1048 (((type) == UAM_SERVER_CHANGEPW) ? \
1049 &uam_changepw : NULL))
1051 /* just do a linked list search. this could be sped up with a hashed
1052 * list, but i doubt anyone's going to have enough uams to matter. */
1053 struct uam_obj *auth_uamfind(const int type, const char *name,
1056 struct uam_obj *prev, *start;
1058 if (!name || !(start = UAM_LIST(type)))
1062 while ((prev = prev->uam_prev) != start)
1063 if (strndiacasecmp(prev->uam_name, name, len) == 0)
1069 int auth_register(const int type, struct uam_obj *uam)
1071 struct uam_obj *start;
1073 if (!uam || !uam->uam_name || (*uam->uam_name == '\0'))
1076 if (!(start = UAM_LIST(type)))
1077 return 1; /* we don't know what to do with it, caller must free it */
1079 uam_attach(start, uam);
1083 /* load all of the modules */
1084 int auth_load(const char *path, const char *list)
1086 char name[MAXPATHLEN + 1], buf[MAXPATHLEN + 1], *p;
1087 struct uam_mod *mod;
1091 if (!path || !*path || !list || (len = strlen(path)) > sizeof(name) - 2)
1094 strlcpy(buf, list, sizeof(buf));
1095 if ((p = strtok(buf, ",")) == NULL)
1099 if (name[len - 1] != '/') {
1105 strlcpy(name + len, p, sizeof(name) - len);
1106 LOG(log_debug, logtype_afpd, "uam: loading (%s)", name);
1108 if ((stat(name, &st) == 0) && (mod = uam_load(name, p))) {
1110 if (stat(name, &st) == 0) {
1111 if ((mod = uam_load(name, p))) {
1112 uam_attach(&uam_modules, mod);
1113 LOG(log_debug, logtype_afpd, "uam: %s loaded", p);
1115 LOG(log_error, logtype_afpd, "uam: %s load failure",p);
1118 LOG(log_info, logtype_afpd, "uam: uam not found (status=%d)", stat(name, &st));
1120 p = strtok(NULL, ",");
1126 /* get rid of all of the uams */
1127 void auth_unload(void)
1129 struct uam_mod *mod, *prev, *start = &uam_modules;
1131 prev = start->uam_prev;
1132 while ((mod = prev) != start) {
1133 prev = prev->uam_prev;