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) {
212 uam_afpserver_action(AFP_GETACL, UAM_AFPSERVER_POSTAUTH, afp_getacl, NULL);
213 uam_afpserver_action(AFP_SETACL, UAM_AFPSERVER_POSTAUTH, afp_setacl, NULL);
214 uam_afpserver_action(AFP_ACCESS, UAM_AFPSERVER_POSTAUTH, afp_access, NULL);
215 #endif /* HAVE_ACLS */
216 uam_afpserver_action(AFP_GETEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_getextattr, NULL);
217 uam_afpserver_action(AFP_SETEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_setextattr, NULL);
218 uam_afpserver_action(AFP_REMOVEATTR, UAM_AFPSERVER_POSTAUTH, afp_remextattr, NULL);
219 uam_afpserver_action(AFP_LISTEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_listextattr, NULL);
221 uam_afpserver_action(AFP_SYNCDIR, UAM_AFPSERVER_POSTAUTH, afp_syncdir, NULL);
222 uam_afpserver_action(AFP_SYNCFORK, UAM_AFPSERVER_POSTAUTH, afp_syncfork, NULL);
223 uam_afpserver_action(AFP_SPOTLIGHT_PRIVATE, UAM_AFPSERVER_POSTAUTH, afp_null_nolog, NULL);
224 uam_afpserver_action(AFP_ENUMERATE_EXT2, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext2, NULL);
226 uam_afpserver_action(AFP_ENUMERATE_EXT, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext, NULL);
227 uam_afpserver_action(AFP_BYTELOCK_EXT, UAM_AFPSERVER_POSTAUTH, afp_bytelock_ext, NULL);
228 /* catsearch_ext uses the same packet as catsearch FIXME double check this, it wasn't true for enue
230 uam_afpserver_action(AFP_CATSEARCH_EXT, UAM_AFPSERVER_POSTAUTH, afp_catsearch_ext, NULL);
231 uam_afpserver_action(AFP_GETSESSTOKEN, UAM_AFPSERVER_POSTAUTH, afp_getsession, NULL);
232 uam_afpserver_action(AFP_READ_EXT, UAM_AFPSERVER_POSTAUTH, afp_read_ext, NULL);
233 uam_afpserver_action(AFP_WRITE_EXT, UAM_AFPSERVER_POSTAUTH, afp_write_ext, NULL);
234 uam_afpserver_action(AFP_DISCTOLDSESS, UAM_AFPSERVER_POSTAUTH, afp_disconnect, NULL);
238 * If first connection to a server is done in classic AFP2.2 version is used
239 * but OSX uses AFP3.x FPzzz command !
241 uam_afpserver_action(AFP_ZZZ, UAM_AFPSERVER_POSTAUTH, afp_zzz, NULL);
249 static int login(AFPObj *obj, struct passwd *pwd, void (*logout)(void), int expired)
253 #endif /* ADMIN_GRP */
256 set_processname("afpd");
259 if ( pwd->pw_uid == 0 ) { /* don't allow root login */
260 LOG(log_error, logtype_afpd, "login: root login denied!" );
261 return AFPERR_NOTAUTH;
264 LOG(log_note, logtype_afpd, "%s Login by %s",
265 afp_versions[afp_version_index].av_name, pwd->pw_name);
268 if (obj->proto == AFPPROTO_ASP) {
269 ASP asp = obj->handle;
270 int addr_net = ntohs( asp->asp_sat.sat_addr.s_net );
271 int addr_node = asp->asp_sat.sat_addr.s_node;
273 if (obj->options.authprintdir) {
274 if(addr_net && addr_node) { /* Do we have a valid Appletalk address? */
277 int mypid = getpid();
278 struct stat stat_buf;
280 sprintf(nodename, "%s/net%d.%dnode%d", obj->options.authprintdir,
281 addr_net / 256, addr_net % 256, addr_node);
282 LOG(log_info, logtype_afpd, "registering %s (uid %d) on %u.%u as %s",
283 pwd->pw_name, pwd->pw_uid, addr_net, addr_node, nodename);
285 if (stat(nodename, &stat_buf) == 0) { /* file exists */
286 if (S_ISREG(stat_buf.st_mode)) { /* normal file */
288 fp = fopen(nodename, "w");
289 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
291 chown( nodename, pwd->pw_uid, -1 );
292 } else { /* somebody is messing with us */
293 LOG(log_error, logtype_afpd, "print authfile %s is not a normal file, it will not be modified", nodename );
295 } else { /* file 'nodename' does not exist */
296 fp = fopen(nodename, "w");
297 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
299 chown( nodename, pwd->pw_uid, -1 );
301 } /* if (addr_net && addr_node ) */
302 } /* if (options->authprintdir) */
303 } /* if (obj->proto == AFPPROTO_ASP) */
306 if (initgroups( pwd->pw_name, pwd->pw_gid ) < 0) {
308 LOG(log_info, logtype_afpd, "running with uid %d", geteuid());
309 #else /* RUN_AS_USER */
310 LOG(log_error, logtype_afpd, "login: %s", strerror(errno));
311 return AFPERR_BADUAM;
312 #endif /* RUN_AS_USER */
316 /* Basically if the user is in the admin group, we stay root */
318 if (( ngroups = getgroups( 0, NULL )) < 0 ) {
319 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
320 return AFPERR_BADUAM;
323 if ( NULL == (groups = calloc(ngroups, GROUPS_SIZE)) ) {
324 LOG(log_error, logtype_afpd, "login: %s calloc: %d", ngroups);
325 return AFPERR_BADUAM;
328 if (( ngroups = getgroups( ngroups, groups )) < 0 ) {
329 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
330 return AFPERR_BADUAM;
334 LOG(log_debug, logtype_afpd, "obj->options.admingid == %d", obj->options.admingid);
336 if (obj->options.admingid != 0) {
338 for (i = 0; i < ngroups; i++) {
339 if (groups[i] == obj->options.admingid) admin = 1;
344 LOG(log_info, logtype_afpd, "admin login -- %s", pwd->pw_name );
347 #endif /* ADMIN_GRP */
350 struct DSI *dsi = obj->handle;
357 afp_get_cmdline( &argc, &argv );
359 hp = gethostbyaddr( (char *) &dsi->client.sin_addr,
360 sizeof( struct in_addr ),
361 dsi->client.sin_family );
364 clientname = hp->h_name;
366 clientname = inet_ntoa( dsi->client.sin_addr );
368 sprintf( hostname, "%s@%s", pwd->pw_name, clientname );
370 if( sia_become_user( NULL, argc, argv, hostname, pwd->pw_name,
371 NULL, FALSE, NULL, NULL,
372 SIA_BEU_REALLOGIN ) != SIASUCCESS )
373 return AFPERR_BADUAM;
375 LOG(log_info, logtype_afpd, "session from %s (%s)", hostname,
376 inet_ntoa( dsi->client.sin_addr ) );
378 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
379 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
380 return AFPERR_BADUAM;
384 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
385 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
386 return AFPERR_BADUAM;
391 #define GROUPSTR_BUFSIZE 1024
392 char groupsstr[GROUPSTR_BUFSIZE];
394 int j = GROUPSTR_BUFSIZE;
396 int n = snprintf(groupsstr, GROUPSTR_BUFSIZE, "%u", groups[0]);
400 for (int i = 1; i < ngroups; i++) {
401 n = snprintf(s, j, ", %u", groups[i]);
404 LOG(log_debug, logtype_afpd, "login: group string buffer overflow");
410 LOG(log_debug, logtype_afpd, "login: %u supplementary groups: %s", ngroups, groupsstr);
413 /* There's probably a better way to do this, but for now, we just play root */
418 #endif /* ADMIN_GRP */
421 set_auth_switch(expired);
422 /* save our euid, we need it for preexec_close */
423 obj->uid = geteuid();
424 obj->logout = logout;
428 save_uidgid ( &obj->uidgid );
434 /* ---------------------- */
435 int afp_zzz ( /* Function 122 */
437 char *ibuf _U_, size_t ibuflen _U_,
438 char *rbuf, size_t *rbuflen)
444 retdata = obj->options.sleep /120;
448 *rbuflen = sizeof(retdata);
449 retdata = htonl(retdata);
450 memcpy(rbuf, &retdata, sizeof(retdata));
453 rbuf += sizeof(retdata);
457 /* ---------------------- */
458 static int create_session_token(AFPObj *obj)
462 /* use 8 bytes for token as OSX, don't know if it helps */
463 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
464 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
468 if ( NULL == (obj->sinfo.sessiontoken = malloc(SESSIONTOKEN_LEN)) )
471 memset(obj->sinfo.sessiontoken, 0, SESSIONTOKEN_LEN);
472 obj->sinfo.sessiontoken_len = SESSIONTOKEN_LEN;
474 memcpy(obj->sinfo.sessiontoken, &pid, sizeof(pid_t));
479 static int create_session_key(AFPObj *obj)
481 /* create session key */
482 if (obj->sinfo.sessionkey == NULL) {
483 if (NULL == (obj->sinfo.sessionkey = malloc(SESSIONKEY_LEN)) )
485 uam_random_string(obj, obj->sinfo.sessionkey, SESSIONKEY_LEN);
486 obj->sinfo.sessionkey_len = SESSIONKEY_LEN;
492 /* ---------------------- */
495 char *ibuf, size_t ibuflen,
496 char *rbuf, size_t *rbuflen)
508 if (ibuflen < 2 + sizeof(type)) {
515 memcpy(&type, ibuf, sizeof(type));
517 ibuf += sizeof(type);
518 ibuflen -= sizeof(type);
520 if ( obj->sinfo.sessiontoken == NULL ) {
521 if ( create_session_token( obj ) )
529 case 0: /* old version ?*/
530 tklen = obj->sinfo.sessiontoken_len;
531 token = obj->sinfo.sessiontoken;
533 case 1: /* disconnect */
534 case 2: /* reconnect update id */
535 if (ibuflen >= sizeof(idlen)) {
536 memcpy(&idlen, ibuf, sizeof(idlen));
537 idlen = ntohl(idlen);
538 ibuf += sizeof(idlen);
539 ibuflen -= sizeof(idlen);
540 if (ibuflen < idlen) {
543 /* memcpy (id, ibuf, idlen) */
544 tklen = obj->sinfo.sessiontoken_len;
545 token = obj->sinfo.sessiontoken;
552 memcpy( &idlen, ibuf, sizeof(idlen));
553 idlen = ntohl(idlen);
554 ibuf += sizeof(idlen);
555 ibuflen -= sizeof(idlen);
556 ibuf += sizeof(boottime);
557 ibuflen -= sizeof(boottime);
558 if (ibuflen < idlen || idlen > (90-10)) {
561 ipc_child_write(obj->ipc_fd, IPC_GETSESSION, idlen+8, p);
562 tklen = obj->sinfo.sessiontoken_len;
563 token = obj->sinfo.sessiontoken;
566 case 8: /* Panther Kerberos Token */
567 tklen = obj->sinfo.cryptedkey_len;
568 token = obj->sinfo.cryptedkey;
580 memcpy(rbuf, &tp, sizeof(tklen));
581 rbuf += sizeof(tklen);
582 *rbuflen += sizeof(tklen);
584 memcpy(rbuf, token, tklen);
590 /* ---------------------- */
591 int afp_disconnect(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
593 DSI *dsi = (DSI *)obj->handle;
603 /* check for guest user */
604 if ( 0 == (strcasecmp(obj->username, obj->options.guest)) ) {
609 memcpy(&type, ibuf, sizeof(type));
611 ibuf += sizeof(type);
613 memcpy(&tklen, ibuf, sizeof(tklen));
614 tklen = ntohl(tklen);
615 ibuf += sizeof(tklen);
617 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
618 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
621 if (tklen != SESSIONTOKEN_LEN) {
624 tklen = sizeof(pid_t);
625 memcpy(&token, ibuf, tklen);
627 /* our stuff is pid + zero pad */
629 for (i = tklen; i < SESSIONTOKEN_LEN; i++, ibuf++) {
635 LOG(log_note, logtype_afpd, "afp_disconnect: trying primary reconnect");
637 /* check for old session, possibly transfering session from here to there */
638 if (ipc_child_write(obj->ipc_fd, IPC_DISCOLDSESSION, tklen, &token) == -1)
640 /* write uint16_t DSI request ID */
641 if (writet(obj->ipc_fd, &dsi->header.dsi_requestID, 2, 0, 2) != 2) {
642 LOG(log_error, logtype_afpd, "afp_disconnect: couldn't send DSI request ID");
645 /* now send our connected AFP client socket */
646 if (send_fd(obj->ipc_fd, dsi->socket) != 0)
648 /* Now see what happens: either afpd master kills us because our session */
649 /* has been transfered to a old disconnected session, or we continue */
653 LOG(log_error, logtype_afpd, "afp_disconnect: primary reconnect failed");
657 /* ---------------------- */
658 static int get_version(AFPObj *obj, char *ibuf, size_t ibuflen, size_t len)
662 if (!len || len > ibuflen)
663 return AFPERR_BADVERS;
665 num = sizeof( afp_versions ) / sizeof( afp_versions[ 0 ]);
666 for ( i = 0; i < num; i++ ) {
667 if ( strncmp( ibuf, afp_versions[ i ].av_name , len ) == 0 ) {
668 afp_version = afp_versions[ i ].av_number;
669 afp_version_index = i;
673 if ( i == num ) /* An inappropo version */
674 return AFPERR_BADVERS ;
676 if (afp_version >= 30 && obj->proto != AFPPROTO_DSI)
677 return AFPERR_BADVERS ;
680 if (afp_version >= 30 && sizeof(off_t) != 8) {
681 LOG(log_error, logtype_afpd, "get_version: no LARGE_FILE support recompile!" );
682 return AFPERR_BADVERS ;
688 /* ---------------------- */
689 int afp_login(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
691 struct passwd *pwd = NULL;
698 return send_reply(obj, AFPERR_SHUTDOWN );
701 return send_reply(obj, AFPERR_BADVERS );
704 len = (unsigned char) *ibuf++;
707 i = get_version(obj, ibuf, ibuflen, len);
709 return send_reply(obj, i );
712 return send_reply(obj, AFPERR_BADUAM);
717 len = (unsigned char) *ibuf++;
720 if (!len || len > ibuflen)
721 return send_reply(obj, AFPERR_BADUAM);
723 if (NULL == (afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) )
724 return send_reply(obj, AFPERR_BADUAM);
728 if (AFP_OK != (i = create_session_key(obj)) )
729 return send_reply(obj, i);
731 i = afp_uam->u.uam_login.login(obj, &pwd, ibuf, ibuflen, rbuf, rbuflen);
733 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
734 return send_reply(obj, i);
736 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
739 /* ---------------------- */
740 int afp_login_ext(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
742 struct passwd *pwd = NULL;
752 return send_reply(obj, AFPERR_SHUTDOWN );
755 return send_reply(obj, AFPERR_BADVERS );
761 len = (unsigned char) *ibuf;
765 i = get_version(obj, ibuf, ibuflen, len);
767 return send_reply(obj, i );
770 return send_reply(obj, AFPERR_BADUAM);
775 len = (unsigned char) *ibuf;
779 if (!len || len > ibuflen)
780 return send_reply(obj, AFPERR_BADUAM);
782 if ((afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) == NULL)
783 return send_reply(obj, AFPERR_BADUAM);
787 if (!afp_uam->u.uam_login.login_ext) {
788 LOG(log_error, logtype_afpd, "login_ext: uam %s not AFP 3 ready!", afp_uam->uam_name );
789 return send_reply(obj, AFPERR_BADUAM);
792 if (ibuflen <= 1 +sizeof(len16))
793 return send_reply(obj, AFPERR_PARAM);
799 return send_reply(obj, AFPERR_PARAM);
801 memcpy(&len16, ibuf, sizeof(len16));
802 ibuf += sizeof(len16);
803 ibuflen -= sizeof(len16);
806 return send_reply(obj, AFPERR_PARAM);
810 /* directory service name */
812 return send_reply(obj, AFPERR_PARAM);
821 return send_reply(obj, AFPERR_PARAM);
822 len = (unsigned char) *ibuf;
827 /* With "No User Authen" it is equal */
828 if (ibuflen < sizeof(len16))
829 return send_reply(obj, AFPERR_PARAM);
830 memcpy(&len16, ibuf, sizeof(len16));
831 ibuf += sizeof(len16);
832 ibuflen -= sizeof(len16);
836 return send_reply(obj, AFPERR_PARAM);
840 LOG(log_error, logtype_afpd, "login_ext: directory service path not null!" );
841 return send_reply(obj, AFPERR_PARAM);
848 if (ibuflen && ((unsigned long) ibuf & 1)) { /* pad character */
853 if (AFP_OK != (i = create_session_key(obj)) ) {
854 return send_reply(obj, i);
857 /* FIXME user name are in UTF8 */
858 i = afp_uam->u.uam_login.login_ext(obj, username, &pwd, ibuf, ibuflen, rbuf, rbuflen);
860 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
861 return send_reply(obj, i);
863 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
866 /* ---------------------- */
867 int afp_logincont(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
869 struct passwd *pwd = NULL;
872 if ( afp_uam == NULL || afp_uam->u.uam_login.logincont == NULL || ibuflen < 2 ) {
874 return send_reply(obj, AFPERR_NOTAUTH );
877 ibuf += 2; ibuflen -= 2;
878 err = afp_uam->u.uam_login.logincont(obj, &pwd, ibuf, ibuflen,
880 if (!pwd || ( err != AFP_OK && err != AFPERR_PWDEXPR))
881 return send_reply(obj, err);
883 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((err==AFPERR_PWDEXPR)?1:0)));
887 int afp_logout(AFPObj *obj, char *ibuf _U_, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen _U_)
889 LOG(log_note, logtype_afpd, "AFP logout by %s", obj->username);
897 /* change password --
898 * NOTE: an FPLogin must already have completed successfully for this
899 * to work. this also does a little pre-processing before it hands
902 int afp_changepw(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
904 char username[MACFILELEN + 1], *start = ibuf;
913 /* check if password change is allowed, OS-X ignores the flag.
914 * we shouldn't trust the client on this anyway.
915 * not sure about the "right" error code, NOOP for now */
916 if (!(obj->options.passwdbits & PASSWD_SET))
919 /* make sure we can deal w/ this uam */
920 len = (unsigned char) *ibuf++;
921 if ((uam = auth_uamfind(UAM_SERVER_CHANGEPW, ibuf, len)) == NULL)
922 return AFPERR_BADUAM;
925 if ((len + 1) & 1) /* pad byte */
928 if ( afp_version < 30) {
929 len = (unsigned char) *ibuf++;
930 if ( len > sizeof(username) - 1) {
933 memcpy(username, ibuf, len);
934 username[ len ] = '\0';
936 if ((len + 1) & 1) /* pad byte */
939 /* AFP > 3.0 doesn't pass the username, APF 3.1 specs page 124 */
940 if ( ibuf[0] != '\0' || ibuf[1] != '\0')
943 len = MIN(sizeof(username), strlen(obj->username));
944 memcpy(username, obj->username, len);
945 username[ len ] = '\0';
949 LOG(log_info, logtype_afpd, "changing password for <%s>", username);
951 if (( pwd = uam_getname( obj, username, sizeof(username))) == NULL )
954 /* send it off to the uam. we really don't use ibuflen right now. */
955 if (ibuflen < (size_t)(ibuf - start))
958 ibuflen -= (ibuf - start);
959 ret = uam->u.uam_changepw(obj, username, pwd, ibuf, ibuflen,
961 LOG(log_info, logtype_afpd, "password change %s.",
962 (ret == AFPERR_AUTHCONT) ? "continued" :
963 (ret ? "failed" : "succeeded"));
972 int afp_getuserinfo(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
979 LOG(log_debug, logtype_afpd, "begin afp_getuserinfo:");
984 ibuf += sizeof(id); /* userid is not used in AFP 2.0 */
985 memcpy(&bitmap, ibuf, sizeof(bitmap));
986 bitmap = ntohs(bitmap);
988 /* deal with error cases. we don't have to worry about
989 * AFPERR_ACCESS or AFPERR_NOITEM as geteuid and getegid always
993 if ((bitmap & USERIBIT_ALL) != bitmap)
994 return AFPERR_BITMAP;
996 /* remember place where we store the possibly modified bitmap later */
997 memcpy(rbuf, ibuf, sizeof(bitmap));
999 rbuf += sizeof(bitmap);
1000 *rbuflen = sizeof(bitmap);
1002 /* copy the user/group info */
1003 if (bitmap & USERIBIT_USER) {
1004 id = htonl(geteuid());
1005 memcpy(rbuf, &id, sizeof(id));
1007 *rbuflen += sizeof(id);
1010 if (bitmap & USERIBIT_GROUP) {
1011 id = htonl(getegid());
1012 memcpy(rbuf, &id, sizeof(id));
1014 *rbuflen += sizeof(id);
1017 if (bitmap & USERIBIT_UUID) {
1018 if ( ! (obj->options.flags & OPTION_UUID)) {
1019 bitmap &= ~USERIBIT_UUID;
1020 bitmap = htons(bitmap);
1021 memcpy(bitmapp, &bitmap, sizeof(bitmap));
1023 LOG(log_debug, logtype_afpd, "afp_getuserinfo: get UUID for \'%s\'", obj->username);
1026 ret = getuuidfromname( obj->username, UUID_USER, uuid);
1028 LOG(log_info, logtype_afpd, "afp_getuserinfo: error getting UUID !");
1029 return AFPERR_NOITEM;
1031 LOG(log_debug, logtype_afpd, "afp_getuserinfo: got UUID: %s", uuid_bin2string(uuid));
1033 memcpy(rbuf, uuid, UUID_BINSIZE);
1034 rbuf += UUID_BINSIZE;
1035 *rbuflen += UUID_BINSIZE;
1039 LOG(log_debug, logtype_afpd, "END afp_getuserinfo:");
1043 #define UAM_LIST(type) (((type) == UAM_SERVER_LOGIN || (type) == UAM_SERVER_LOGIN_EXT) ? &uam_login : \
1044 (((type) == UAM_SERVER_CHANGEPW) ? \
1045 &uam_changepw : NULL))
1047 /* just do a linked list search. this could be sped up with a hashed
1048 * list, but i doubt anyone's going to have enough uams to matter. */
1049 struct uam_obj *auth_uamfind(const int type, const char *name,
1052 struct uam_obj *prev, *start;
1054 if (!name || !(start = UAM_LIST(type)))
1058 while ((prev = prev->uam_prev) != start)
1059 if (strndiacasecmp(prev->uam_name, name, len) == 0)
1065 int auth_register(const int type, struct uam_obj *uam)
1067 struct uam_obj *start;
1069 if (!uam || !uam->uam_name || (*uam->uam_name == '\0'))
1072 if (!(start = UAM_LIST(type)))
1073 return 1; /* we don't know what to do with it, caller must free it */
1075 uam_attach(start, uam);
1079 /* load all of the modules */
1080 int auth_load(const char *path, const char *list)
1082 char name[MAXPATHLEN + 1], buf[MAXPATHLEN + 1], *p;
1083 struct uam_mod *mod;
1087 if (!path || !*path || !list || (len = strlen(path)) > sizeof(name) - 2)
1090 strlcpy(buf, list, sizeof(buf));
1091 if ((p = strtok(buf, ",")) == NULL)
1095 if (name[len - 1] != '/') {
1101 strlcpy(name + len, p, sizeof(name) - len);
1102 LOG(log_debug, logtype_afpd, "uam: loading (%s)", name);
1104 if ((stat(name, &st) == 0) && (mod = uam_load(name, p))) {
1106 if (stat(name, &st) == 0) {
1107 if ((mod = uam_load(name, p))) {
1108 uam_attach(&uam_modules, mod);
1109 LOG(log_debug, logtype_afpd, "uam: %s loaded", p);
1111 LOG(log_error, logtype_afpd, "uam: %s load failure",p);
1114 LOG(log_info, logtype_afpd, "uam: uam not found (status=%d)", stat(name, &st));
1116 p = strtok(NULL, ",");
1122 /* get rid of all of the uams */
1123 void auth_unload(void)
1125 struct uam_mod *mod, *prev, *start = &uam_modules;
1127 prev = start->uam_prev;
1128 while ((mod = prev) != start) {
1129 prev = prev->uam_prev;