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 },
89 static struct uam_mod uam_modules = {NULL, NULL, &uam_modules, &uam_modules};
90 static struct uam_obj uam_login = {"", "", 0, {{NULL, NULL, NULL, NULL }}, &uam_login,
92 static struct uam_obj uam_changepw = {"", "", 0, {{NULL, NULL, NULL, NULL}}, &uam_changepw,
95 static struct uam_obj *afp_uam = NULL;
98 void status_versions( char *data, const ASP asp, const DSI *dsi)
102 int len, num, i, count = 0;
104 memcpy(&status, start + AFPSTATUS_VERSOFF, sizeof(status));
105 num = sizeof( afp_versions ) / sizeof( afp_versions[ 0 ] );
107 for ( i = 0; i < num; i++ ) {
109 if ( !asp && (afp_versions[ i ].av_number <= 21)) continue;
110 #endif /* ! NO_DDP */
111 if ( !dsi && (afp_versions[ i ].av_number >= 22)) continue;
114 data += ntohs( status );
117 for ( i = 0; i < num; i++ ) {
119 if ( !asp && (afp_versions[ i ].av_number <= 21)) continue;
120 #endif /* ! NO_DDP */
121 if ( !dsi && (afp_versions[ i ].av_number >= 22)) continue;
122 len = strlen( afp_versions[ i ].av_name );
124 memcpy( data, afp_versions[ i ].av_name , len );
127 status = htons( data - start );
128 memcpy(start + AFPSTATUS_UAMSOFF, &status, sizeof(status));
131 void status_uams(char *data, const char *authlist)
135 struct uam_obj *uams;
138 memcpy(&status, start + AFPSTATUS_UAMSOFF, sizeof(status));
140 while ((uams = uams->uam_prev) != &uam_login) {
141 if (strstr(authlist, uams->uam_path))
145 data += ntohs( status );
147 while ((uams = uams->uam_prev) != &uam_login) {
148 if (strstr(authlist, uams->uam_path)) {
149 LOG(log_info, logtype_afpd, "uam: \"%s\" available", uams->uam_name);
150 len = strlen( uams->uam_name);
152 memcpy( data, uams->uam_name, len );
158 status = htons(data - start);
159 memcpy(start + AFPSTATUS_ICONOFF, &status, sizeof(status));
162 /* handle errors by closing the connection. this is only needed
163 * by the afp_* functions. */
164 static int send_reply(const AFPObj *obj, const int err)
166 if ((err == AFP_OK) || (err == AFPERR_AUTHCONT))
169 obj->reply(obj->handle, err);
175 static int afp_errpwdexpired(AFPObj *obj _U_, char *ibuf _U_, size_t ibuflen _U_,
176 char *rbuf _U_, size_t *rbuflen)
179 return AFPERR_PWDEXPR;
182 static int afp_null_nolog(AFPObj *obj _U_, char *ibuf _U_, size_t ibuflen _U_,
183 char *rbuf _U_, size_t *rbuflen)
186 return( AFPERR_NOOP );
189 static int set_auth_switch(int expired)
195 * BF: expired password handling
196 * to allow the user to change his/her password we have to allow login
197 * but every following call except for FPChangePassword will be thrown
198 * away with an AFPERR_PWDEXPR error. (thanks to Leland Wallace from Apple
199 * for clarifying this)
202 for (i=0; i<=0xff; i++) {
203 uam_afpserver_action(i, UAM_AFPSERVER_PREAUTH, afp_errpwdexpired, NULL);
205 uam_afpserver_action(AFP_LOGOUT, UAM_AFPSERVER_PREAUTH, afp_logout, NULL);
206 uam_afpserver_action(AFP_CHANGEPW, UAM_AFPSERVER_PREAUTH, afp_changepw, NULL);
209 afp_switch = postauth_switch;
210 switch (afp_version) {
213 uam_afpserver_action(AFP_GETACL, UAM_AFPSERVER_POSTAUTH, afp_getacl, NULL);
214 uam_afpserver_action(AFP_SETACL, UAM_AFPSERVER_POSTAUTH, afp_setacl, NULL);
215 uam_afpserver_action(AFP_ACCESS, UAM_AFPSERVER_POSTAUTH, afp_access, NULL);
216 #endif /* HAVE_ACLS */
217 uam_afpserver_action(AFP_GETEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_getextattr, NULL);
218 uam_afpserver_action(AFP_SETEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_setextattr, NULL);
219 uam_afpserver_action(AFP_REMOVEATTR, UAM_AFPSERVER_POSTAUTH, afp_remextattr, NULL);
220 uam_afpserver_action(AFP_LISTEXTATTR, UAM_AFPSERVER_POSTAUTH, afp_listextattr, NULL);
222 uam_afpserver_action(AFP_SYNCDIR, UAM_AFPSERVER_POSTAUTH, afp_syncdir, NULL);
223 uam_afpserver_action(AFP_SYNCFORK, UAM_AFPSERVER_POSTAUTH, afp_syncfork, NULL);
224 uam_afpserver_action(AFP_SPOTLIGHT_PRIVATE, UAM_AFPSERVER_POSTAUTH, afp_null_nolog, NULL);
225 uam_afpserver_action(AFP_ENUMERATE_EXT2, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext2, NULL);
227 uam_afpserver_action(AFP_ENUMERATE_EXT, UAM_AFPSERVER_POSTAUTH, afp_enumerate_ext, NULL);
228 uam_afpserver_action(AFP_BYTELOCK_EXT, UAM_AFPSERVER_POSTAUTH, afp_bytelock_ext, NULL);
229 /* catsearch_ext uses the same packet as catsearch FIXME double check this, it wasn't true for enue
231 uam_afpserver_action(AFP_CATSEARCH_EXT, UAM_AFPSERVER_POSTAUTH, afp_catsearch_ext, NULL);
232 uam_afpserver_action(AFP_GETSESSTOKEN, UAM_AFPSERVER_POSTAUTH, afp_getsession, NULL);
233 uam_afpserver_action(AFP_READ_EXT, UAM_AFPSERVER_POSTAUTH, afp_read_ext, NULL);
234 uam_afpserver_action(AFP_WRITE_EXT, UAM_AFPSERVER_POSTAUTH, afp_write_ext, NULL);
235 uam_afpserver_action(AFP_DISCTOLDSESS, UAM_AFPSERVER_POSTAUTH, afp_disconnect, NULL);
239 * If first connection to a server is done in classic AFP2.2 version is used
240 * but OSX uses AFP3.x FPzzz command !
242 uam_afpserver_action(AFP_ZZZ, UAM_AFPSERVER_POSTAUTH, afp_zzz, NULL);
250 static int login(AFPObj *obj, struct passwd *pwd, void (*logout)(void), int expired)
254 #endif /* ADMIN_GRP */
257 set_processname("afpd");
260 if ( pwd->pw_uid == 0 ) { /* don't allow root login */
261 LOG(log_error, logtype_afpd, "login: root login denied!" );
262 return AFPERR_NOTAUTH;
265 LOG(log_note, logtype_afpd, "%s Login by %s",
266 afp_versions[afp_version_index].av_name, pwd->pw_name);
269 if (obj->proto == AFPPROTO_ASP) {
270 ASP asp = obj->handle;
271 int addr_net = ntohs( asp->asp_sat.sat_addr.s_net );
272 int addr_node = asp->asp_sat.sat_addr.s_node;
274 if (obj->options.authprintdir) {
275 if(addr_net && addr_node) { /* Do we have a valid Appletalk address? */
278 int mypid = getpid();
279 struct stat stat_buf;
281 sprintf(nodename, "%s/net%d.%dnode%d", obj->options.authprintdir,
282 addr_net / 256, addr_net % 256, addr_node);
283 LOG(log_info, logtype_afpd, "registering %s (uid %d) on %u.%u as %s",
284 pwd->pw_name, pwd->pw_uid, addr_net, addr_node, nodename);
286 if (stat(nodename, &stat_buf) == 0) { /* file exists */
287 if (S_ISREG(stat_buf.st_mode)) { /* normal file */
289 fp = fopen(nodename, "w");
290 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
292 chown( nodename, pwd->pw_uid, -1 );
293 } else { /* somebody is messing with us */
294 LOG(log_error, logtype_afpd, "print authfile %s is not a normal file, it will not be modified", nodename );
296 } else { /* file 'nodename' does not exist */
297 fp = fopen(nodename, "w");
298 fprintf(fp, "%s:%d\n", pwd->pw_name, mypid);
300 chown( nodename, pwd->pw_uid, -1 );
302 } /* if (addr_net && addr_node ) */
303 } /* if (options->authprintdir) */
304 } /* if (obj->proto == AFPPROTO_ASP) */
307 if (initgroups( pwd->pw_name, pwd->pw_gid ) < 0) {
309 LOG(log_info, logtype_afpd, "running with uid %d", geteuid());
310 #else /* RUN_AS_USER */
311 LOG(log_error, logtype_afpd, "login: %s", strerror(errno));
312 return AFPERR_BADUAM;
313 #endif /* RUN_AS_USER */
317 /* Basically if the user is in the admin group, we stay root */
319 if (( ngroups = getgroups( 0, NULL )) < 0 ) {
320 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
321 return AFPERR_BADUAM;
324 if ( NULL == (groups = calloc(ngroups, GROUPS_SIZE)) ) {
325 LOG(log_error, logtype_afpd, "login: %s calloc: %d", ngroups);
326 return AFPERR_BADUAM;
329 if (( ngroups = getgroups( ngroups, groups )) < 0 ) {
330 LOG(log_error, logtype_afpd, "login: %s getgroups: %s", pwd->pw_name, strerror(errno) );
331 return AFPERR_BADUAM;
335 LOG(log_debug, logtype_afpd, "obj->options.admingid == %d", obj->options.admingid);
337 if (obj->options.admingid != 0) {
339 for (i = 0; i < ngroups; i++) {
340 if (groups[i] == obj->options.admingid) admin = 1;
345 LOG(log_info, logtype_afpd, "admin login -- %s", pwd->pw_name );
348 #endif /* ADMIN_GRP */
351 struct DSI *dsi = obj->handle;
358 afp_get_cmdline( &argc, &argv );
360 hp = gethostbyaddr( (char *) &dsi->client.sin_addr,
361 sizeof( struct in_addr ),
362 dsi->client.sin_family );
365 clientname = hp->h_name;
367 clientname = inet_ntoa( dsi->client.sin_addr );
369 sprintf( hostname, "%s@%s", pwd->pw_name, clientname );
371 if( sia_become_user( NULL, argc, argv, hostname, pwd->pw_name,
372 NULL, FALSE, NULL, NULL,
373 SIA_BEU_REALLOGIN ) != SIASUCCESS )
374 return AFPERR_BADUAM;
376 LOG(log_info, logtype_afpd, "session from %s (%s)", hostname,
377 inet_ntoa( dsi->client.sin_addr ) );
379 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
380 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
381 return AFPERR_BADUAM;
385 if (setegid( pwd->pw_gid ) < 0 || seteuid( pwd->pw_uid ) < 0) {
386 LOG(log_error, logtype_afpd, "login: %s %s", pwd->pw_name, strerror(errno) );
387 return AFPERR_BADUAM;
392 #define GROUPSTR_BUFSIZE 1024
393 char groupsstr[GROUPSTR_BUFSIZE];
395 int j = GROUPSTR_BUFSIZE;
397 int n = snprintf(groupsstr, GROUPSTR_BUFSIZE, "%u", groups[0]);
401 for (int i = 1; i < ngroups; i++) {
402 n = snprintf(s, j, ", %u", groups[i]);
405 LOG(log_debug, logtype_afpd, "login: group string buffer overflow");
411 LOG(log_debug, logtype_afpd, "login: %u supplementary groups: %s", ngroups, groupsstr);
414 /* There's probably a better way to do this, but for now, we just play root */
419 #endif /* ADMIN_GRP */
422 set_auth_switch(expired);
423 /* save our euid, we need it for preexec_close */
424 obj->uid = geteuid();
425 obj->logout = logout;
429 save_uidgid ( &obj->uidgid );
435 /* ---------------------- */
436 int afp_zzz ( /* Function 122 */
438 char *ibuf _U_, size_t ibuflen _U_,
439 char *rbuf, size_t *rbuflen)
445 retdata = obj->options.sleep /120;
449 *rbuflen = sizeof(retdata);
450 retdata = htonl(retdata);
451 memcpy(rbuf, &retdata, sizeof(retdata));
454 rbuf += sizeof(retdata);
458 /* ---------------------- */
459 static int create_session_token(AFPObj *obj)
463 /* use 8 bytes for token as OSX, don't know if it helps */
464 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
465 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
469 if ( NULL == (obj->sinfo.sessiontoken = malloc(SESSIONTOKEN_LEN)) )
472 memset(obj->sinfo.sessiontoken, 0, SESSIONTOKEN_LEN);
473 obj->sinfo.sessiontoken_len = SESSIONTOKEN_LEN;
475 memcpy(obj->sinfo.sessiontoken, &pid, sizeof(pid_t));
480 static int create_session_key(AFPObj *obj)
482 /* create session key */
483 if (obj->sinfo.sessionkey == NULL) {
484 if (NULL == (obj->sinfo.sessionkey = malloc(SESSIONKEY_LEN)) )
486 uam_random_string(obj, obj->sinfo.sessionkey, SESSIONKEY_LEN);
487 obj->sinfo.sessionkey_len = SESSIONKEY_LEN;
493 /* ---------------------- */
496 char *ibuf, size_t ibuflen,
497 char *rbuf, size_t *rbuflen)
509 if (ibuflen < 2 + sizeof(type)) {
516 memcpy(&type, ibuf, sizeof(type));
518 ibuf += sizeof(type);
519 ibuflen -= sizeof(type);
521 if ( obj->sinfo.sessiontoken == NULL ) {
522 if ( create_session_token( obj ) )
530 case 0: /* old version ?*/
531 tklen = obj->sinfo.sessiontoken_len;
532 token = obj->sinfo.sessiontoken;
534 case 1: /* disconnect */
535 case 2: /* reconnect update id */
536 if (ibuflen >= sizeof(idlen)) {
537 memcpy(&idlen, ibuf, sizeof(idlen));
538 idlen = ntohl(idlen);
539 ibuf += sizeof(idlen);
540 ibuflen -= sizeof(idlen);
541 if (ibuflen < idlen) {
544 /* memcpy (id, ibuf, idlen) */
545 tklen = obj->sinfo.sessiontoken_len;
546 token = obj->sinfo.sessiontoken;
553 memcpy( &idlen, ibuf, sizeof(idlen));
554 idlen = ntohl(idlen);
555 ibuf += sizeof(idlen);
556 ibuflen -= sizeof(idlen);
557 ibuf += sizeof(boottime);
558 ibuflen -= sizeof(boottime);
559 if (ibuflen < idlen || idlen > (90-10)) {
562 server_ipc_write(IPC_GETSESSION, idlen+8, p );
563 tklen = obj->sinfo.sessiontoken_len;
564 token = obj->sinfo.sessiontoken;
567 case 8: /* Panther Kerberos Token */
568 tklen = obj->sinfo.cryptedkey_len;
569 token = obj->sinfo.cryptedkey;
581 memcpy(rbuf, &tp, sizeof(tklen));
582 rbuf += sizeof(tklen);
583 *rbuflen += sizeof(tklen);
585 memcpy(rbuf, token, tklen);
591 /* ---------------------- */
592 int afp_disconnect(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
604 /* check for guest user */
605 if ( 0 == (strcasecmp(obj->username, obj->options.guest)) ) {
610 memcpy(&type, ibuf, sizeof(type));
612 ibuf += sizeof(type);
614 memcpy(&tklen, ibuf, sizeof(tklen));
615 tklen = ntohl(tklen);
616 ibuf += sizeof(tklen);
618 if ( sizeof(pid_t) > SESSIONTOKEN_LEN) {
619 LOG(log_error, logtype_afpd, "sizeof(pid_t) > %u", SESSIONTOKEN_LEN );
622 if (tklen != SESSIONTOKEN_LEN) {
625 tklen = sizeof(pid_t);
626 memcpy(&token, ibuf, tklen);
628 /* our stuff is pid + zero pad */
630 for (i = tklen; i < SESSIONTOKEN_LEN; i++, ibuf++) {
636 /* killed old session, not easy */
637 server_ipc_write(IPC_KILLTOKEN, tklen, &token);
640 return AFPERR_SESSCLOS; /* was AFP_OK */
643 /* ---------------------- */
644 static int get_version(AFPObj *obj, char *ibuf, size_t ibuflen, size_t len)
648 if (!len || len > ibuflen)
649 return AFPERR_BADVERS;
651 num = sizeof( afp_versions ) / sizeof( afp_versions[ 0 ]);
652 for ( i = 0; i < num; i++ ) {
653 if ( strncmp( ibuf, afp_versions[ i ].av_name , len ) == 0 ) {
654 afp_version = afp_versions[ i ].av_number;
655 afp_version_index = i;
659 if ( i == num ) /* An inappropo version */
660 return AFPERR_BADVERS ;
662 if (afp_version >= 30 && obj->proto != AFPPROTO_DSI)
663 return AFPERR_BADVERS ;
666 if (afp_version >= 30 && sizeof(off_t) != 8) {
667 LOG(log_error, logtype_afpd, "get_version: no LARGE_FILE support recompile!" );
668 return AFPERR_BADVERS ;
674 /* ---------------------- */
675 int afp_login(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
677 struct passwd *pwd = NULL;
684 return send_reply(obj, AFPERR_SHUTDOWN );
687 return send_reply(obj, AFPERR_BADVERS );
690 len = (unsigned char) *ibuf++;
693 i = get_version(obj, ibuf, ibuflen, len);
695 return send_reply(obj, i );
698 return send_reply(obj, AFPERR_BADUAM);
703 len = (unsigned char) *ibuf++;
706 if (!len || len > ibuflen)
707 return send_reply(obj, AFPERR_BADUAM);
709 if (NULL == (afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) )
710 return send_reply(obj, AFPERR_BADUAM);
714 if (AFP_OK != (i = create_session_key(obj)) )
715 return send_reply(obj, i);
717 i = afp_uam->u.uam_login.login(obj, &pwd, ibuf, ibuflen, rbuf, rbuflen);
719 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
720 return send_reply(obj, i);
722 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
725 /* ---------------------- */
726 int afp_login_ext(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
728 struct passwd *pwd = NULL;
738 return send_reply(obj, AFPERR_SHUTDOWN );
741 return send_reply(obj, AFPERR_BADVERS );
747 len = (unsigned char) *ibuf;
751 i = get_version(obj, ibuf, ibuflen, len);
753 return send_reply(obj, i );
756 return send_reply(obj, AFPERR_BADUAM);
761 len = (unsigned char) *ibuf;
765 if (!len || len > ibuflen)
766 return send_reply(obj, AFPERR_BADUAM);
768 if ((afp_uam = auth_uamfind(UAM_SERVER_LOGIN, ibuf, len)) == NULL)
769 return send_reply(obj, AFPERR_BADUAM);
773 if (!afp_uam->u.uam_login.login_ext) {
774 LOG(log_error, logtype_afpd, "login_ext: uam %s not AFP 3 ready!", afp_uam->uam_name );
775 return send_reply(obj, AFPERR_BADUAM);
778 if (ibuflen <= 1 +sizeof(len16))
779 return send_reply(obj, AFPERR_PARAM);
785 return send_reply(obj, AFPERR_PARAM);
787 memcpy(&len16, ibuf, sizeof(len16));
788 ibuf += sizeof(len16);
789 ibuflen -= sizeof(len16);
792 return send_reply(obj, AFPERR_PARAM);
796 /* directory service name */
798 return send_reply(obj, AFPERR_PARAM);
807 return send_reply(obj, AFPERR_PARAM);
808 len = (unsigned char) *ibuf;
813 /* With "No User Authen" it is equal */
814 if (ibuflen < sizeof(len16))
815 return send_reply(obj, AFPERR_PARAM);
816 memcpy(&len16, ibuf, sizeof(len16));
817 ibuf += sizeof(len16);
818 ibuflen -= sizeof(len16);
822 return send_reply(obj, AFPERR_PARAM);
826 LOG(log_error, logtype_afpd, "login_ext: directory service path not null!" );
827 return send_reply(obj, AFPERR_PARAM);
834 if (ibuflen && ((unsigned long) ibuf & 1)) { /* pad character */
839 if (AFP_OK != (i = create_session_key(obj)) ) {
840 return send_reply(obj, i);
843 /* FIXME user name are in UTF8 */
844 i = afp_uam->u.uam_login.login_ext(obj, username, &pwd, ibuf, ibuflen, rbuf, rbuflen);
846 if (!pwd || ( i != AFP_OK && i != AFPERR_PWDEXPR))
847 return send_reply(obj, i);
849 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((i==AFPERR_PWDEXPR)?1:0)));
852 /* ---------------------- */
853 int afp_logincont(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
855 struct passwd *pwd = NULL;
858 if ( afp_uam == NULL || afp_uam->u.uam_login.logincont == NULL || ibuflen < 2 ) {
860 return send_reply(obj, AFPERR_NOTAUTH );
863 ibuf += 2; ibuflen -= 2;
864 err = afp_uam->u.uam_login.logincont(obj, &pwd, ibuf, ibuflen,
866 if (!pwd || ( err != AFP_OK && err != AFPERR_PWDEXPR))
867 return send_reply(obj, err);
869 return send_reply(obj, login(obj, pwd, afp_uam->u.uam_login.logout, ((err==AFPERR_PWDEXPR)?1:0)));
873 int afp_logout(AFPObj *obj, char *ibuf _U_, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen _U_)
875 LOG(log_note, logtype_afpd, "AFP logout by %s", obj->username);
883 /* change password --
884 * NOTE: an FPLogin must already have completed successfully for this
885 * to work. this also does a little pre-processing before it hands
888 int afp_changepw(AFPObj *obj, char *ibuf, size_t ibuflen, char *rbuf, size_t *rbuflen)
890 char username[MACFILELEN + 1], *start = ibuf;
899 /* check if password change is allowed, OS-X ignores the flag.
900 * we shouldn't trust the client on this anyway.
901 * not sure about the "right" error code, NOOP for now */
902 if (!(obj->options.passwdbits & PASSWD_SET))
905 /* make sure we can deal w/ this uam */
906 len = (unsigned char) *ibuf++;
907 if ((uam = auth_uamfind(UAM_SERVER_CHANGEPW, ibuf, len)) == NULL)
908 return AFPERR_BADUAM;
911 if ((len + 1) & 1) /* pad byte */
914 if ( afp_version < 30) {
915 len = (unsigned char) *ibuf++;
916 if ( len > sizeof(username) - 1) {
919 memcpy(username, ibuf, len);
920 username[ len ] = '\0';
922 if ((len + 1) & 1) /* pad byte */
925 /* AFP > 3.0 doesn't pass the username, APF 3.1 specs page 124 */
926 if ( ibuf[0] != '\0' || ibuf[1] != '\0')
929 len = MIN(sizeof(username), strlen(obj->username));
930 memcpy(username, obj->username, len);
931 username[ len ] = '\0';
935 LOG(log_info, logtype_afpd, "changing password for <%s>", username);
937 if (( pwd = uam_getname( obj, username, sizeof(username))) == NULL )
940 /* send it off to the uam. we really don't use ibuflen right now. */
941 if (ibuflen < (size_t)(ibuf - start))
944 ibuflen -= (ibuf - start);
945 ret = uam->u.uam_changepw(obj, username, pwd, ibuf, ibuflen,
947 LOG(log_info, logtype_afpd, "password change %s.",
948 (ret == AFPERR_AUTHCONT) ? "continued" :
949 (ret ? "failed" : "succeeded"));
958 int afp_getuserinfo(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
965 LOG(log_debug, logtype_afpd, "begin afp_getuserinfo:");
970 ibuf += sizeof(id); /* userid is not used in AFP 2.0 */
971 memcpy(&bitmap, ibuf, sizeof(bitmap));
972 bitmap = ntohs(bitmap);
974 /* deal with error cases. we don't have to worry about
975 * AFPERR_ACCESS or AFPERR_NOITEM as geteuid and getegid always
979 if ((bitmap & USERIBIT_ALL) != bitmap)
980 return AFPERR_BITMAP;
982 /* remember place where we store the possibly modified bitmap later */
983 memcpy(rbuf, ibuf, sizeof(bitmap));
985 rbuf += sizeof(bitmap);
986 *rbuflen = sizeof(bitmap);
988 /* copy the user/group info */
989 if (bitmap & USERIBIT_USER) {
990 id = htonl(geteuid());
991 memcpy(rbuf, &id, sizeof(id));
993 *rbuflen += sizeof(id);
996 if (bitmap & USERIBIT_GROUP) {
997 id = htonl(getegid());
998 memcpy(rbuf, &id, sizeof(id));
1000 *rbuflen += sizeof(id);
1003 if (bitmap & USERIBIT_UUID) {
1004 if ( ! (obj->options.flags & OPTION_UUID)) {
1005 bitmap &= ~USERIBIT_UUID;
1006 bitmap = htons(bitmap);
1007 memcpy(bitmapp, &bitmap, sizeof(bitmap));
1009 LOG(log_debug, logtype_afpd, "afp_getuserinfo: get UUID for \'%s\'", obj->username);
1012 ret = getuuidfromname( obj->username, UUID_USER, uuid);
1014 LOG(log_info, logtype_afpd, "afp_getuserinfo: error getting UUID !");
1015 return AFPERR_NOITEM;
1017 LOG(log_debug, logtype_afpd, "afp_getuserinfo: got UUID: %s", uuid_bin2string(uuid));
1019 memcpy(rbuf, uuid, UUID_BINSIZE);
1020 rbuf += UUID_BINSIZE;
1021 *rbuflen += UUID_BINSIZE;
1025 LOG(log_debug, logtype_afpd, "END afp_getuserinfo:");
1029 #define UAM_LIST(type) (((type) == UAM_SERVER_LOGIN || (type) == UAM_SERVER_LOGIN_EXT) ? &uam_login : \
1030 (((type) == UAM_SERVER_CHANGEPW) ? \
1031 &uam_changepw : NULL))
1033 /* just do a linked list search. this could be sped up with a hashed
1034 * list, but i doubt anyone's going to have enough uams to matter. */
1035 struct uam_obj *auth_uamfind(const int type, const char *name,
1038 struct uam_obj *prev, *start;
1040 if (!name || !(start = UAM_LIST(type)))
1044 while ((prev = prev->uam_prev) != start)
1045 if (strndiacasecmp(prev->uam_name, name, len) == 0)
1051 int auth_register(const int type, struct uam_obj *uam)
1053 struct uam_obj *start;
1055 if (!uam || !uam->uam_name || (*uam->uam_name == '\0'))
1058 if (!(start = UAM_LIST(type)))
1059 return 1; /* we don't know what to do with it, caller must free it */
1061 uam_attach(start, uam);
1065 /* load all of the modules */
1066 int auth_load(const char *path, const char *list)
1068 char name[MAXPATHLEN + 1], buf[MAXPATHLEN + 1], *p;
1069 struct uam_mod *mod;
1073 if (!path || !*path || !list || (len = strlen(path)) > sizeof(name) - 2)
1076 strlcpy(buf, list, sizeof(buf));
1077 if ((p = strtok(buf, ",")) == NULL)
1081 if (name[len - 1] != '/') {
1087 strlcpy(name + len, p, sizeof(name) - len);
1088 LOG(log_debug, logtype_afpd, "uam: loading (%s)", name);
1090 if ((stat(name, &st) == 0) && (mod = uam_load(name, p))) {
1092 if (stat(name, &st) == 0) {
1093 if ((mod = uam_load(name, p))) {
1094 uam_attach(&uam_modules, mod);
1095 LOG(log_debug, logtype_afpd, "uam: %s loaded", p);
1097 LOG(log_error, logtype_afpd, "uam: %s load failure",p);
1100 LOG(log_info, logtype_afpd, "uam: uam not found (status=%d)", stat(name, &st));
1102 p = strtok(NULL, ",");
1108 /* get rid of all of the uams */
1109 void auth_unload(void)
1111 struct uam_mod *mod, *prev, *start = &uam_modules;
1113 prev = start->uam_prev;
1114 while ((mod = prev) != start) {
1115 prev = prev->uam_prev;