2 * Copyright (c) 1990,1993 Regents of The University of Michigan.
3 * All Rights Reserved. See COPYRIGHT.
8 #endif /* HAVE_CONFIG_H */
14 #include <sys/types.h>
15 #include <sys/param.h>
17 #include <netatalk/endian.h>
18 #include <atalk/afp.h>
19 #include <atalk/compat.h>
20 #include <atalk/util.h>
30 #include <arpa/inet.h>
34 extern void afp_get_cmdline( int *ac, char ***av );
37 #include <atalk/logger.h>
38 #include <atalk/server_ipc.h>
39 #include <atalk/uuid.h>
53 static int afp_version_index;
57 #if defined( sun ) && !defined( __svr4__ ) || defined( ultrix )
60 #define GROUPS_SIZE sizeof(int)
62 #else /* sun __svr4__ ultrix */
65 #define GROUPS_SIZE sizeof(gid_t)
66 #endif /* sun ultrix */
71 * These numbers are scattered throughout the code.
73 static struct afp_versions afp_versions[] = {
75 { "AFPVersion 1.1", 11 },
76 { "AFPVersion 2.0", 20 },
77 { "AFPVersion 2.1", 21 },
87 static struct uam_mod uam_modules = {NULL, NULL, &uam_modules, &uam_modules};
88 static struct uam_obj uam_login = {"", "", 0, {{NULL, NULL, NULL, NULL }}, &uam_login,
90 static struct uam_obj uam_changepw = {"", "", 0, {{NULL, NULL, NULL, NULL}}, &uam_changepw,
93 static struct uam_obj *afp_uam = NULL;
96 void status_versions( char *data, const ASP asp, const DSI *dsi)
100 int len, num, i, count = 0;
102 memcpy(&status, start + AFPSTATUS_VERSOFF, sizeof(status));
103 num = sizeof( afp_versions ) / sizeof( afp_versions[ 0 ] );
105 for ( i = 0; i < num; i++ ) {
107 if ( !asp && (afp_versions[ i ].av_number <= 21)) continue;
108 #endif /* ! NO_DDP */
109 if ( !dsi && (afp_versions[ i ].av_number >= 22)) continue;
112 data += ntohs( status );
115 for ( i = 0; i < num; i++ ) {
117 if ( !asp && (afp_versions[ i ].av_number <= 21)) continue;
118 #endif /* ! NO_DDP */
119 if ( !dsi && (afp_versions[ i ].av_number >= 22)) continue;
120 len = strlen( afp_versions[ i ].av_name );
122 memcpy( data, afp_versions[ i ].av_name , len );
125 status = htons( data - start );
126 memcpy(start + AFPSTATUS_UAMSOFF, &status, sizeof(status));
129 void status_uams(char *data, const char *authlist)
133 struct uam_obj *uams;
136 memcpy(&status, start + AFPSTATUS_UAMSOFF, sizeof(status));
138 while ((uams = uams->uam_prev) != &uam_login) {
139 if (strstr(authlist, uams->uam_path))
143 data += ntohs( status );
145 while ((uams = uams->uam_prev) != &uam_login) {
146 if (strstr(authlist, uams->uam_path)) {
147 LOG(log_info, logtype_afpd, "uam: \"%s\" available", uams->uam_name);
148 len = strlen( uams->uam_name);
150 memcpy( data, uams->uam_name, len );
156 status = htons(data - start);
157 memcpy(start + AFPSTATUS_ICONOFF, &status, sizeof(status));
160 /* handle errors by closing the connection. this is only needed
161 * by the afp_* functions. */
162 static int send_reply(const AFPObj *obj, const int err)
164 if ((err == AFP_OK) || (err == AFPERR_AUTHCONT))
167 obj->reply(obj->handle, err);
173 static int afp_errpwdexpired(AFPObj *obj _U_, char *ibuf _U_, size_t ibuflen _U_,
174 char *rbuf _U_, size_t *rbuflen)
177 return AFPERR_PWDEXPR;
180 static int afp_null_nolog(AFPObj *obj _U_, char *ibuf _U_, size_t ibuflen _U_,
181 char *rbuf _U_, size_t *rbuflen)
184 return( AFPERR_NOOP );
187 static int set_auth_switch(int expired)
193 * BF: expired password handling
194 * to allow the user to change his/her password we have to allow login
195 * but every following call except for FPChangePassword will be thrown
196 * away with an AFPERR_PWDEXPR error. (thanks to Leland Wallace from Apple
197 * for clarifying this)
200 for (i=0; i<=0xff; i++) {
201 uam_afpserver_action(i, UAM_AFPSERVER_PREAUTH, afp_errpwdexpired, NULL);
203 uam_afpserver_action(AFP_LOGOUT, UAM_AFPSERVER_PREAUTH, afp_logout, NULL);
204 uam_afpserver_action(AFP_CHANGEPW, UAM_AFPSERVER_PREAUTH, afp_changepw, NULL);
207 afp_switch = postauth_switch;
208 switch (afp_version) {
211 uam_afpserver_action(AFP_GETACL, UAM_AFPSERVER_POSTAUTH, afp_getacl, NULL);
212 uam_afpserver_action(AFP_SETACL, UAM_AFPSERVER_POSTAUTH, afp_setacl, NULL);
213 uam_afpserver_action(AFP_ACCESS, UAM_AFPSERVER_POSTAUTH, afp_access, NULL);
214 #endif /* HAVE_ACLS */
215 uam_afpserver_action(AFP_GETEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_getextattr, NULL);
216 uam_afpserver_action(AFP_SETEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_setextattr, NULL);
217 uam_afpserver_action(AFP_REMOVEATTR, UAM_AFPSERVER_POSTAUTH, afp_remextattr, NULL);
218 uam_afpserver_action(AFP_LISTEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_listextattr, NULL);
220 uam_afpserver_action(AFP_SYNCDIR, UAM_AFPSERVER_POSTAUTH, afp_syncdir, NULL);
221 uam_afpserver_action(AFP_SYNCFORK, UAM_AFPSERVER_POSTAUTH, afp_syncfork, NULL);
222 uam_afpserver_action(AFP_SPOTLIGHT_PRIVATE, UAM_AFPSERVER_POSTAUTH, afp_null_nolog, NULL);
223 uam_afpserver_action(AFP_ENUMERATE_EXT2, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext2, NULL);
225 uam_afpserver_action(AFP_ENUMERATE_EXT, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext, NULL);
226 uam_afpserver_action(AFP_BYTELOCK_EXT, UAM_AFPSERVER_POSTAUTH, afp_bytelock_ext, NULL);
227 /* catsearch_ext uses the same packet as catsearch FIXME double check this, it wasn't true for enue
229 uam_afpserver_action(AFP_CATSEARCH_EXT, UAM_AFPSERVER_POSTAUTH, afp_catsearch_ext, NULL);
230 uam_afpserver_action(AFP_GETSESSTOKEN, UAM_AFPSERVER_POSTAUTH, afp_getsession, NULL);
231 uam_afpserver_action(AFP_READ_EXT, UAM_AFPSERVER_POSTAUTH, afp_read_ext, NULL);
232 uam_afpserver_action(AFP_WRITE_EXT, UAM_AFPSERVER_POSTAUTH, afp_write_ext, NULL);
233 uam_afpserver_action(AFP_DISCTOLDSESS, UAM_AFPSERVER_POSTAUTH, afp_disconnect, NULL);
237 * If first connection to a server is done in classic AFP2.2 version is used
238 * but OSX uses AFP3.x FPzzz command !
240 uam_afpserver_action(AFP_ZZZ, UAM_AFPSERVER_POSTAUTH, afp_zzz, NULL);
248 static int login(AFPObj *obj, struct passwd *pwd, void (*logout)(void), int expired)
252 #endif /* ADMIN_GRP */
255 set_processname("afpd");
258 if ( pwd->pw_uid == 0 ) { /* don't allow root login */
259 LOG(log_error, logtype_afpd, "login: root login denied!" );
260 return AFPERR_NOTAUTH;
263 LOG(log_note, logtype_afpd, "%s Login by %s",
264 afp_versions[afp_version_index].av_name, pwd->pw_name);
267 if (obj->proto == AFPPROTO_ASP) {
268 ASP asp = obj->handle;
269 int addr_net = ntohs( asp->asp_sat.sat_addr.s_net );
270 int addr_node = asp->asp_sat.sat_addr.s_node;
272 if (obj->options.authprintdir) {
273 if(addr_net && addr_node) { /* Do we have a valid Appletalk address? */
276 int mypid = getpid();
277 struct stat stat_buf;
279 sprintf(nodename, "%s/net%d.%dnode%d", obj->options.authprintdir,
280 addr_net / 256, addr_net % 256, addr_node);
281 LOG(log_info, logtype_afpd, "registering %s (uid %d) on %u.%u as %s",
282 pwd->pw_name, pwd->pw_uid, addr_net, addr_node, nodename);
284 if (stat(nodename, &stat_buf) == 0) { /* file exists */
285 if (S_ISREG(stat_buf.st_mode)) { /* normal file */
287 fp = fopen(nodename, "w");
288 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
290 chown( nodename, pwd->pw_uid, -1 );
291 } else { /* somebody is messing with us */
292 LOG(log_error, logtype_afpd, "print authfile %s is not a normal file, it will not be modified", nodename );
294 } else { /* file 'nodename' does not exist */
295 fp = fopen(nodename, "w");
296 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
298 chown( nodename, pwd->pw_uid, -1 );
300 } /* if (addr_net && addr_node ) */
301 } /* if (options->authprintdir) */
302 } /* if (obj->proto == AFPPROTO_ASP) */
305 if (initgroups( pwd->pw_name, pwd->pw_gid ) < 0) {
307 LOG(log_info, logtype_afpd, "running with uid %d", geteuid());
308 #else /* RUN_AS_USER */
309 LOG(log_error, logtype_afpd, "login: %s", strerror(errno));
310 return AFPERR_BADUAM;
311 #endif /* RUN_AS_USER */
315 /* Basically if the user is in the admin group, we stay root */
317 if (( ngroups = getgroups( 0, NULL )) < 0 ) {
318 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
319 return AFPERR_BADUAM;
322 if ( NULL == (groups = calloc(ngroups, GROUPS_SIZE)) ) {
323 LOG(log_error, logtype_afpd, "login: %s calloc: %d", ngroups);
324 return AFPERR_BADUAM;
327 if (( ngroups = getgroups( ngroups, groups )) < 0 ) {
328 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
329 return AFPERR_BADUAM;
333 LOG(log_debug, logtype_afpd, "obj->options.admingid == %d", obj->options.admingid);
335 if (obj->options.admingid != 0) {
337 for (i = 0; i < ngroups; i++) {
338 if (groups[i] == obj->options.admingid) admin = 1;
343 LOG(log_info, logtype_afpd, "admin login -- %s", pwd->pw_name );
346 #endif /* ADMIN_GRP */
349 struct DSI *dsi = obj->handle;
356 afp_get_cmdline( &argc, &argv );
358 hp = gethostbyaddr( (char *) &dsi->client.sin_addr,
359 sizeof( struct in_addr ),
360 dsi->client.sin_family );
363 clientname = hp->h_name;
365 clientname = inet_ntoa( dsi->client.sin_addr );
367 sprintf( hostname, "%s@%s", pwd->pw_name, clientname );
369 if( sia_become_user( NULL, argc, argv, hostname, pwd->pw_name,
370 NULL, FALSE, NULL, NULL,
371 SIA_BEU_REALLOGIN ) != SIASUCCESS )
372 return AFPERR_BADUAM;
374 LOG(log_info, logtype_afpd, "session from %s (%s)", hostname,
375 inet_ntoa( dsi->client.sin_addr ) );
377 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
378 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
379 return AFPERR_BADUAM;
383 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
384 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
385 return AFPERR_BADUAM;
390 #define GROUPSTR_BUFSIZE 1024
391 char groupsstr[GROUPSTR_BUFSIZE];
393 int j = GROUPSTR_BUFSIZE;
395 int n = snprintf(groupsstr, GROUPSTR_BUFSIZE, "%u", groups[0]);
399 for (int i = 1; i < ngroups; i++) {
400 n = snprintf(s, j, ", %u", groups[i]);
403 LOG(log_debug, logtype_afpd, "login: group string buffer overflow");
409 LOG(log_debug, logtype_afpd, "login: %u supplementary groups: %s", ngroups, groupsstr);
412 /* There's probably a better way to do this, but for now, we just play root */
417 #endif /* ADMIN_GRP */
420 set_auth_switch(expired);
421 /* save our euid, we need it for preexec_close */
422 obj->uid = geteuid();
423 obj->logout = logout;
427 save_uidgid ( &obj->uidgid );
433 /* ---------------------- */
434 int afp_zzz ( /* Function 122 */
436 char *ibuf _U_, size_t ibuflen _U_,
437 char *rbuf, size_t *rbuflen)
443 retdata = obj->options.sleep /120;
447 *rbuflen = sizeof(retdata);
448 retdata = htonl(retdata);
449 memcpy(rbuf, &retdata, sizeof(retdata));
452 rbuf += sizeof(retdata);
456 /* ---------------------- */
457 static int create_session_token(AFPObj *obj)
461 /* use 8 bytes for token as OSX, don't know if it helps */
462 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
463 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
467 if ( NULL == (obj->sinfo.sessiontoken = malloc(SESSIONTOKEN_LEN)) )
470 memset(obj->sinfo.sessiontoken, 0, SESSIONTOKEN_LEN);
471 obj->sinfo.sessiontoken_len = SESSIONTOKEN_LEN;
473 memcpy(obj->sinfo.sessiontoken, &pid, sizeof(pid_t));
478 static int create_session_key(AFPObj *obj)
480 /* create session key */
481 if (obj->sinfo.sessionkey == NULL) {
482 if (NULL == (obj->sinfo.sessionkey = malloc(SESSIONKEY_LEN)) )
484 uam_random_string(obj, obj->sinfo.sessionkey, SESSIONKEY_LEN);
485 obj->sinfo.sessionkey_len = SESSIONKEY_LEN;
491 /* ---------------------- */
494 char *ibuf, size_t ibuflen,
495 char *rbuf, size_t *rbuflen)
507 if (ibuflen < 2 + sizeof(type)) {
514 memcpy(&type, ibuf, sizeof(type));
516 ibuf += sizeof(type);
517 ibuflen -= sizeof(type);
519 if ( obj->sinfo.sessiontoken == NULL ) {
520 if ( create_session_token( obj ) )
528 case 0: /* old version ?*/
529 tklen = obj->sinfo.sessiontoken_len;
530 token = obj->sinfo.sessiontoken;
532 case 1: /* disconnect */
533 case 2: /* reconnect update id */
534 if (ibuflen >= sizeof(idlen)) {
535 memcpy(&idlen, ibuf, sizeof(idlen));
536 idlen = ntohl(idlen);
537 ibuf += sizeof(idlen);
538 ibuflen -= sizeof(idlen);
539 if (ibuflen < idlen) {
542 /* memcpy (id, ibuf, idlen) */
543 tklen = obj->sinfo.sessiontoken_len;
544 token = obj->sinfo.sessiontoken;
551 memcpy( &idlen, ibuf, sizeof(idlen));
552 idlen = ntohl(idlen);
553 ibuf += sizeof(idlen);
554 ibuflen -= sizeof(idlen);
555 ibuf += sizeof(boottime);
556 ibuflen -= sizeof(boottime);
557 if (ibuflen < idlen || idlen > (90-10)) {
560 server_ipc_write(IPC_GETSESSION, idlen+8, p );
561 tklen = obj->sinfo.sessiontoken_len;
562 token = obj->sinfo.sessiontoken;
565 case 8: /* Panther Kerberos Token */
566 tklen = obj->sinfo.cryptedkey_len;
567 token = obj->sinfo.cryptedkey;
579 memcpy(rbuf, &tp, sizeof(tklen));
580 rbuf += sizeof(tklen);
581 *rbuflen += sizeof(tklen);
583 memcpy(rbuf, token, tklen);
589 /* ---------------------- */
590 int afp_disconnect(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
602 /* check for guest user */
603 if ( 0 == (strcasecmp(obj->username, obj->options.guest)) ) {
608 memcpy(&type, ibuf, sizeof(type));
610 ibuf += sizeof(type);
612 memcpy(&tklen, ibuf, sizeof(tklen));
613 tklen = ntohl(tklen);
614 ibuf += sizeof(tklen);
616 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
617 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
620 if (tklen != SESSIONTOKEN_LEN) {
623 tklen = sizeof(pid_t);
624 memcpy(&token, ibuf, tklen);
626 /* our stuff is pid + zero pad */
628 for (i = tklen; i < SESSIONTOKEN_LEN; i++, ibuf++) {
634 /* killed old session, not easy */
635 server_ipc_write(IPC_KILLTOKEN, tklen, &token);
638 return AFPERR_SESSCLOS; /* was AFP_OK */
641 /* ---------------------- */
642 static int get_version(AFPObj *obj, char *ibuf, size_t ibuflen, size_t len)
646 if (!len || len > ibuflen)
647 return AFPERR_BADVERS;
649 num = sizeof( afp_versions ) / sizeof( afp_versions[ 0 ]);
650 for ( i = 0; i < num; i++ ) {
651 if ( strncmp( ibuf, afp_versions[ i ].av_name , len ) == 0 ) {
652 afp_version = afp_versions[ i ].av_number;
653 afp_version_index = i;
657 if ( i == num ) /* An inappropo version */
658 return AFPERR_BADVERS ;
660 if (afp_version >= 30 && obj->proto != AFPPROTO_DSI)
661 return AFPERR_BADVERS ;
664 if (afp_version >= 30 && sizeof(off_t) != 8) {
665 LOG(log_error, logtype_afpd, "get_version: no LARGE_FILE support recompile!" );
666 return AFPERR_BADVERS ;
672 /* ---------------------- */
673 int afp_login(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
675 struct passwd *pwd = NULL;
682 return send_reply(obj, AFPERR_SHUTDOWN );
685 return send_reply(obj, AFPERR_BADVERS );
688 len = (unsigned char) *ibuf++;
691 i = get_version(obj, ibuf, ibuflen, len);
693 return send_reply(obj, i );
696 return send_reply(obj, AFPERR_BADUAM);
701 len = (unsigned char) *ibuf++;
704 if (!len || len > ibuflen)
705 return send_reply(obj, AFPERR_BADUAM);
707 if (NULL == (afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) )
708 return send_reply(obj, AFPERR_BADUAM);
712 if (AFP_OK != (i = create_session_key(obj)) )
713 return send_reply(obj, i);
715 i = afp_uam->u.uam_login.login(obj, &pwd, ibuf, ibuflen, rbuf, rbuflen);
717 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
718 return send_reply(obj, i);
720 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
723 /* ---------------------- */
724 int afp_login_ext(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
726 struct passwd *pwd = NULL;
736 return send_reply(obj, AFPERR_SHUTDOWN );
739 return send_reply(obj, AFPERR_BADVERS );
745 len = (unsigned char) *ibuf;
749 i = get_version(obj, ibuf, ibuflen, len);
751 return send_reply(obj, i );
754 return send_reply(obj, AFPERR_BADUAM);
759 len = (unsigned char) *ibuf;
763 if (!len || len > ibuflen)
764 return send_reply(obj, AFPERR_BADUAM);
766 if ((afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) == NULL)
767 return send_reply(obj, AFPERR_BADUAM);
771 if (!afp_uam->u.uam_login.login_ext) {
772 LOG(log_error, logtype_afpd, "login_ext: uam %s not AFP 3 ready!", afp_uam->uam_name );
773 return send_reply(obj, AFPERR_BADUAM);
776 if (ibuflen <= 1 +sizeof(len16))
777 return send_reply(obj, AFPERR_PARAM);
783 return send_reply(obj, AFPERR_PARAM);
785 memcpy(&len16, ibuf, sizeof(len16));
786 ibuf += sizeof(len16);
787 ibuflen -= sizeof(len16);
790 return send_reply(obj, AFPERR_PARAM);
794 /* directory service name */
796 return send_reply(obj, AFPERR_PARAM);
805 return send_reply(obj, AFPERR_PARAM);
806 len = (unsigned char) *ibuf;
811 /* With "No User Authen" it is equal */
812 if (ibuflen < sizeof(len16))
813 return send_reply(obj, AFPERR_PARAM);
814 memcpy(&len16, ibuf, sizeof(len16));
815 ibuf += sizeof(len16);
816 ibuflen -= sizeof(len16);
820 return send_reply(obj, AFPERR_PARAM);
824 LOG(log_error, logtype_afpd, "login_ext: directory service path not null!" );
825 return send_reply(obj, AFPERR_PARAM);
832 if (ibuflen && ((unsigned long) ibuf & 1)) { /* pad character */
837 if (AFP_OK != (i = create_session_key(obj)) ) {
838 return send_reply(obj, i);
841 /* FIXME user name are in UTF8 */
842 i = afp_uam->u.uam_login.login_ext(obj, username, &pwd, ibuf, ibuflen, rbuf, rbuflen);
844 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
845 return send_reply(obj, i);
847 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
850 /* ---------------------- */
851 int afp_logincont(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
853 struct passwd *pwd = NULL;
856 if ( afp_uam == NULL || afp_uam->u.uam_login.logincont == NULL || ibuflen < 2 ) {
858 return send_reply(obj, AFPERR_NOTAUTH );
861 ibuf += 2; ibuflen -= 2;
862 err = afp_uam->u.uam_login.logincont(obj, &pwd, ibuf, ibuflen,
864 if (!pwd || ( err != AFP_OK && err != AFPERR_PWDEXPR))
865 return send_reply(obj, err);
867 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((err==AFPERR_PWDEXPR)?1:0)));
871 int afp_logout(AFPObj *obj, char *ibuf _U_, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen _U_)
873 LOG(log_note, logtype_afpd, "AFP logout by %s", obj->username);
881 /* change password --
882 * NOTE: an FPLogin must already have completed successfully for this
883 * to work. this also does a little pre-processing before it hands
886 int afp_changepw(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
888 char username[MACFILELEN + 1], *start = ibuf;
897 /* check if password change is allowed, OS-X ignores the flag.
898 * we shouldn't trust the client on this anyway.
899 * not sure about the "right" error code, NOOP for now */
900 if (!(obj->options.passwdbits & PASSWD_SET))
903 /* make sure we can deal w/ this uam */
904 len = (unsigned char) *ibuf++;
905 if ((uam = auth_uamfind(UAM_SERVER_CHANGEPW, ibuf, len)) == NULL)
906 return AFPERR_BADUAM;
909 if ((len + 1) & 1) /* pad byte */
912 if ( afp_version < 30) {
913 len = (unsigned char) *ibuf++;
914 if ( len > sizeof(username) - 1) {
917 memcpy(username, ibuf, len);
918 username[ len ] = '\0';
920 if ((len + 1) & 1) /* pad byte */
923 /* AFP > 3.0 doesn't pass the username, APF 3.1 specs page 124 */
924 if ( ibuf[0] != '\0' || ibuf[1] != '\0')
927 len = MIN(sizeof(username), strlen(obj->username));
928 memcpy(username, obj->username, len);
929 username[ len ] = '\0';
933 LOG(log_info, logtype_afpd, "changing password for <%s>", username);
935 if (( pwd = uam_getname( obj, username, sizeof(username))) == NULL )
938 /* send it off to the uam. we really don't use ibuflen right now. */
939 if (ibuflen < (size_t)(ibuf - start))
942 ibuflen -= (ibuf - start);
943 ret = uam->u.uam_changepw(obj, username, pwd, ibuf, ibuflen,
945 LOG(log_info, logtype_afpd, "password change %s.",
946 (ret == AFPERR_AUTHCONT) ? "continued" :
947 (ret ? "failed" : "succeeded"));
956 int afp_getuserinfo(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
963 LOG(log_debug, logtype_afpd, "begin afp_getuserinfo:");
968 ibuf += sizeof(id); /* userid is not used in AFP 2.0 */
969 memcpy(&bitmap, ibuf, sizeof(bitmap));
970 bitmap = ntohs(bitmap);
972 /* deal with error cases. we don't have to worry about
973 * AFPERR_ACCESS or AFPERR_NOITEM as geteuid and getegid always
977 if ((bitmap & USERIBIT_ALL) != bitmap)
978 return AFPERR_BITMAP;
980 /* remember place where we store the possibly modified bitmap later */
981 memcpy(rbuf, ibuf, sizeof(bitmap));
983 rbuf += sizeof(bitmap);
984 *rbuflen = sizeof(bitmap);
986 /* copy the user/group info */
987 if (bitmap & USERIBIT_USER) {
988 id = htonl(geteuid());
989 memcpy(rbuf, &id, sizeof(id));
991 *rbuflen += sizeof(id);
994 if (bitmap & USERIBIT_GROUP) {
995 id = htonl(getegid());
996 memcpy(rbuf, &id, sizeof(id));
998 *rbuflen += sizeof(id);
1001 if (bitmap & USERIBIT_UUID) {
1002 if ( ! (obj->options.flags & OPTION_UUID)) {
1003 bitmap &= ~USERIBIT_UUID;
1004 bitmap = htons(bitmap);
1005 memcpy(bitmapp, &bitmap, sizeof(bitmap));
1007 LOG(log_debug, logtype_afpd, "afp_getuserinfo: get UUID for \'%s\'", obj->username);
1010 ret = getuuidfromname( obj->username, UUID_USER, uuid);
1012 LOG(log_info, logtype_afpd, "afp_getuserinfo: error getting UUID !");
1013 return AFPERR_NOITEM;
1015 LOG(log_debug, logtype_afpd, "afp_getuserinfo: got UUID: %s", uuid_bin2string(uuid));
1017 memcpy(rbuf, uuid, UUID_BINSIZE);
1018 rbuf += UUID_BINSIZE;
1019 *rbuflen += UUID_BINSIZE;
1023 LOG(log_debug, logtype_afpd, "END afp_getuserinfo:");
1027 #define UAM_LIST(type) (((type) == UAM_SERVER_LOGIN || (type) == UAM_SERVER_LOGIN_EXT) ? &uam_login : \
1028 (((type) == UAM_SERVER_CHANGEPW) ? \
1029 &uam_changepw : NULL))
1031 /* just do a linked list search. this could be sped up with a hashed
1032 * list, but i doubt anyone's going to have enough uams to matter. */
1033 struct uam_obj *auth_uamfind(const int type, const char *name,
1036 struct uam_obj *prev, *start;
1038 if (!name || !(start = UAM_LIST(type)))
1042 while ((prev = prev->uam_prev) != start)
1043 if (strndiacasecmp(prev->uam_name, name, len) == 0)
1049 int auth_register(const int type, struct uam_obj *uam)
1051 struct uam_obj *start;
1053 if (!uam || !uam->uam_name || (*uam->uam_name == '\0'))
1056 if (!(start = UAM_LIST(type)))
1057 return 1; /* we don't know what to do with it, caller must free it */
1059 uam_attach(start, uam);
1063 /* load all of the modules */
1064 int auth_load(const char *path, const char *list)
1066 char name[MAXPATHLEN + 1], buf[MAXPATHLEN + 1], *p;
1067 struct uam_mod *mod;
1071 if (!path || !*path || !list || (len = strlen(path)) > sizeof(name) - 2)
1074 strlcpy(buf, list, sizeof(buf));
1075 if ((p = strtok(buf, ",")) == NULL)
1079 if (name[len - 1] != '/') {
1085 strlcpy(name + len, p, sizeof(name) - len);
1086 LOG(log_debug, logtype_afpd, "uam: loading (%s)", name);
1088 if ((stat(name, &st) == 0) && (mod = uam_load(name, p))) {
1090 if (stat(name, &st) == 0) {
1091 if ((mod = uam_load(name, p))) {
1092 uam_attach(&uam_modules, mod);
1093 LOG(log_debug, logtype_afpd, "uam: %s loaded", p);
1095 LOG(log_error, logtype_afpd, "uam: %s load failure",p);
1098 LOG(log_info, logtype_afpd, "uam: uam not found (status=%d)", stat(name, &st));
1100 p = strtok(NULL, ",");
1106 /* get rid of all of the uams */
1107 void auth_unload(void)
1109 struct uam_mod *mod, *prev, *start = &uam_modules;
1111 prev = start->uam_prev;
1112 while ((mod = prev) != start) {
1113 prev = prev->uam_prev;