2 Copyright (c) 2012 Frank Lahm <franklahm@gmail.com>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
17 #endif /* HAVE_CONFIG_H */
27 #include <sys/param.h>
28 #include <sys/socket.h>
29 #include <netinet/in.h>
30 #include <arpa/inet.h>
34 #include <atalk/afp.h>
35 #include <atalk/util.h>
36 #include <atalk/logger.h>
38 #include <atalk/globals.h>
39 #include <atalk/errchk.h>
40 #include <atalk/iniparser.h>
41 #include <atalk/unix.h>
42 #include <atalk/cnid.h>
43 #include <atalk/dsi.h>
44 #include <atalk/uuid.h>
45 #include <atalk/netatalk_conf.h>
49 #define IS_VAR(a, b) (strncmp((a), (b), 2) == 0)
51 /**************************************************************
53 **************************************************************/
55 static int have_uservol = 0; /* whether there's generic user home share in config ("~" or "~/path", but not "~user") */
56 static struct vol *Volumes = NULL;
57 static uint16_t lastvid = 0;
60 * Get a volumes UUID from the config file.
61 * If there is none, it is generated and stored there.
63 * Returns pointer to allocated storage on success, NULL on error.
65 static char *get_vol_uuid(const AFPObj *obj, const char *volname)
68 char buf[1024], uuid[UUID_PRINTABLE_STRING_LENGTH], *p;
73 if ((fp = fopen(obj->options.uuidconf, "r")) != NULL) { /* read open? */
74 /* scan in the conf file */
75 while (fgets(buf, sizeof(buf), fp) != NULL) {
77 while (p && isblank(*p))
79 if (!p || (*p == '#') || (*p == '\n'))
80 continue; /* invalid line */
83 if ((volname_conf = strtok( p, "\"" )) == NULL)
84 continue; /* syntax error */
86 if ((volname_conf = strtok( p, " \t" )) == NULL)
87 continue; /* syntax error: invalid name */
92 continue; /* syntax error */
94 if (strcmp(volname, volname_conf) != 0)
95 continue; /* another volume name */
97 while (p && isblank(*p))
100 if (sscanf(p, "%36s", uuid) == 1 ) {
101 for (int i=0; uuid[i]; i++)
102 uuid[i] = toupper(uuid[i]);
103 LOG(log_debug, logtype_afpd, "get_uuid('%s'): UUID: '%s'", volname, uuid);
113 /* not found or no file, reopen in append mode */
115 if (stat(obj->options.uuidconf, &tmpstat)) { /* no file */
116 if (( fd = creat(obj->options.uuidconf, 0644 )) < 0 ) {
117 LOG(log_error, logtype_afpd, "ERROR: Cannot create %s (%s).",
118 obj->options.uuidconf, strerror(errno));
121 if (( fp = fdopen( fd, "w" )) == NULL ) {
122 LOG(log_error, logtype_afpd, "ERROR: Cannot fdopen %s (%s).",
123 obj->options.uuidconf, strerror(errno));
127 } else if ((fp = fopen(obj->options.uuidconf, "a+")) == NULL) { /* not found */
128 LOG(log_error, logtype_afpd, "Cannot create or append to %s (%s).",
129 obj->options.uuidconf, strerror(errno));
132 fseek(fp, 0L, SEEK_END);
133 if(ftell(fp) == 0) { /* size = 0 */
134 fprintf(fp, "# DON'T TOUCH NOR COPY THOUGHTLESSLY!\n");
135 fprintf(fp, "# This file is auto-generated by afpd\n");
136 fprintf(fp, "# and stores UUIDs for TM volumes.\n\n");
138 fseek(fp, -1L, SEEK_END);
139 if(fgetc(fp) != '\n') fputc('\n', fp); /* last char is \n? */
142 /* generate uuid and write to file */
145 randombytes((void *)id, 16);
146 cp = uuid_bin2string(id);
148 LOG(log_debug, logtype_afpd, "get_uuid('%s'): generated UUID '%s'", volname, cp);
150 fprintf(fp, "\"%s\"\t%36s\n", volname, cp);
157 Check if the underlying filesystem supports EAs.
158 If not, switch to ea:ad.
159 As we can't check (requires write access) on ro-volumes, we switch ea:auto
160 volumes that are options:ro to ea:none.
162 static int do_check_ea_support(const struct vol *vol)
165 char eaname[] = {"org.netatalk.supports-eas.XXXXXX"};
166 const char *eacontent = "yes";
168 if ((vol->v_flags & AFPVOL_RO) == AFPVOL_RO) {
169 LOG(log_note, logtype_afpd, "read-only volume '%s', can't test for EA support, assuming yes", vol->v_localname);
177 if ((sys_setxattr(vol->v_path, eaname, eacontent, 4, 0)) == 0) {
178 sys_removexattr(vol->v_path, eaname);
181 LOG(log_warning, logtype_afpd, "volume \"%s\" does not support Extended Attributes",
191 static void check_ea_support(struct vol *vol)
194 char eaname[] = {"org.netatalk.supports-eas.XXXXXX"};
195 const char *eacontent = "yes";
197 haseas = do_check_ea_support(vol);
199 if (vol->v_vfs_ea == AFPVOL_EA_AUTO) {
200 if ((vol->v_flags & AFPVOL_RO) == AFPVOL_RO) {
201 LOG(log_info, logtype_afpd, "read-only volume '%s', can't test for EA support, disabling EAs", vol->v_localname);
202 vol->v_vfs_ea = AFPVOL_EA_NONE;
207 vol->v_vfs_ea = AFPVOL_EA_SYS;
209 LOG(log_warning, logtype_afpd, "volume \"%s\" does not support Extended Attributes, using ea:ad instead",
211 vol->v_vfs_ea = AFPVOL_EA_AD;
215 if (vol->v_adouble == AD_VERSION_EA) {
217 vol->v_adouble = AD_VERSION2;
222 * Check whether a volume supports ACLs
224 * @param vol (r) volume
226 * @returns 0 if not, 1 if yes
228 static int check_vol_acl_support(const struct vol *vol)
232 #ifdef HAVE_SOLARIS_ACLS
235 if (get_nfsv4_acl(vol->v_path, &aces) == -1)
238 #ifdef HAVE_POSIX_ACLS
241 if ((acl = acl_get_file(vol->v_path, ACL_TYPE_ACCESS)) == NULL)
245 #ifdef HAVE_SOLARIS_ACLS
246 if (aces) free(aces);
248 #ifdef HAVE_POSIX_ACLS
249 if (acl) acl_free(acl);
250 #endif /* HAVE_POSIX_ACLS */
252 LOG(log_debug, logtype_afpd, "Volume \"%s\" ACL support: %s",
253 vol->v_path, ret ? "yes" : "no");
258 * Handle variable substitutions. here's what we understand:
259 * $b -> basename of path
260 * $c -> client ip/appletalk address
261 * $d -> volume pathname on server
262 * $f -> full name (whatever's in the gecos field)
265 * $i -> client ip/appletalk address without port
266 * $s -> server name (hostname if it doesn't exist)
267 * $u -> username (guest is usually nobody)
268 * $v -> volume name or basename if null
271 * This get's called from readvolfile with
272 * path = NULL, volname = NULL for xlating the volumes path
273 * path = path, volname = NULL for xlating the volumes name
274 * ... and from volumes options parsing code when xlating eg dbpath with
275 * path = path, volname = volname
277 * Using this information we can reject xlation of any variable depeninding on a login
278 * context which is not given in the afp master, where we must evaluate this whole stuff
279 * too for the Zeroconf announcements.
281 static char *volxlate(const AFPObj *obj,
285 const struct passwd *pwd,
293 int xlatevolname = 0;
295 if (path && !volname)
303 dest = calloc(destlen +1, 1);
309 strlcpy(dest, src, destlen +1);
310 if ((p = strchr(src, '$')) == NULL) /* nothing to do */
313 /* first part of the path. just forward to the next variable. */
314 len = MIN((size_t)(p - src), destlen);
320 while (p && destlen > 0) {
321 /* now figure out what the variable is */
323 if (IS_VAR(p, "$b")) {
325 if ((q = strrchr(path, '/')) == NULL)
327 else if (*(q + 1) != '\0')
330 } else if (IS_VAR(p, "$c")) {
332 len = sprintf(dest, "%s:%u",
333 getip_string((struct sockaddr *)&dsi->client),
334 getip_port((struct sockaddr *)&dsi->client));
337 } else if (IS_VAR(p, "$d")) {
339 } else if (pwd && IS_VAR(p, "$f")) {
340 if ((r = strchr(pwd->pw_gecos, ',')))
343 } else if (pwd && IS_VAR(p, "$g")) {
344 struct group *grp = getgrgid(pwd->pw_gid);
347 } else if (IS_VAR(p, "$h")) {
348 q = obj->options.hostname;
349 } else if (IS_VAR(p, "$i")) {
351 q = getip_string((struct sockaddr *)&dsi->client);
352 } else if (IS_VAR(p, "$s")) {
353 q = obj->options.hostname;
354 } else if (obj->username && IS_VAR(p, "$u")) {
356 if ( obj->options.ntseparator && (sep = strchr(obj->username, obj->options.ntseparator[0])) != NULL)
360 } else if (IS_VAR(p, "$v")) {
365 if ((q = strrchr(path, '/')) == NULL)
367 else if (*(q + 1) != '\0')
370 } else if (IS_VAR(p, "$$")) {
375 /* copy the stuff over. if we don't understand something that we
376 * should, just skip it over. */
378 len = MIN(p == q ? 2 : strlen(q), destlen);
379 strncpy(dest, q, len);
384 /* stuff up to next $ */
386 p = strchr(src, '$');
387 len = p ? MIN((size_t)(p - src), destlen) : destlen;
389 strncpy(dest, src, len);
400 * this function wants something of the following form:
401 * "@group,name,name2,@group2,name3"
402 * A NULL argument allows everybody to have access.
403 * We return three things:
405 * 0: list exists, but name isn't in it
408 static int accessvol(const AFPObj *obj, const char *args, const char *name)
410 char buf[MAXPATHLEN + 1], *p;
416 strlcpy(buf, args, sizeof(buf));
417 if ((p = strtok(buf, ",")) == NULL) /* nothing, return okay */
421 if (*p == '@') { /* it's a group */
422 if ((gr = getgrnam(p + 1)) && gmem(gr->gr_gid, obj->ngroups, obj->groups))
424 } else if (strcasecmp(p, name) == 0) /* it's a user name */
426 p = strtok(NULL, ",");
432 static int hostaccessvol(const AFPObj *obj, const char *volname, const char *args)
435 char buf[MAXPATHLEN + 1], *p, *b;
436 struct sockaddr_storage client;
437 const DSI *dsi = obj->dsi;
442 strlcpy(buf, args, sizeof(buf));
443 if ((p = strtok_r(buf, ",", &b)) == NULL) /* nothing, return okay */
448 char *ipaddr, *mask_char;
449 struct addrinfo hints, *ai;
451 ipaddr = strtok(p, "/");
452 mask_char = strtok(NULL,"/");
454 /* Get address from string with getaddrinfo */
455 memset(&hints, 0, sizeof hints);
456 hints.ai_family = AF_UNSPEC;
457 hints.ai_socktype = SOCK_STREAM;
458 if ((ret = getaddrinfo(ipaddr, NULL, &hints, &ai)) != 0) {
459 LOG(log_error, logtype_afpd, "hostaccessvol: getaddrinfo: %s\n", gai_strerror(ret));
464 if (mask_char != NULL)
465 mask_int = atoi(mask_char); /* apply_ip_mask does range checking on it */
467 if (ai->ai_family == AF_INET) /* IPv4 */
473 /* Apply mask to addresses */
474 client = dsi->client;
475 apply_ip_mask((struct sockaddr *)&client, mask_int);
476 apply_ip_mask(ai->ai_addr, mask_int);
478 if (compare_ip((struct sockaddr *)&client, ai->ai_addr) == 0) {
485 p = strtok_r(NULL, ",", &b);
492 * Get option string from config, use default value if not set
494 * @param conf (r) config handle
495 * @param vol (r) volume name (must be section name ie wo vars expanded)
496 * @param opt (r) option
497 * @param def (r) if "option" is not found in "name", try to find it in section "def"
499 * @returns const option string or NULL
501 static const char *getoption(const dictionary *conf, const char *vol, const char *opt, const char *def)
504 const char *result = NULL;
506 if (!(result = iniparser_getstring(conf, vol, opt, NULL)))
507 result = iniparser_getstring(conf, def, opt, NULL);
514 * Create volume struct
516 * @param obj (r) handle
517 * @param pwd (r) struct passwd of logged in user, may be NULL in master afpd
518 * @param section (r) volume name wo variables expanded (exactly as in iniconfig)
519 * @param name (r) volume name
520 * @param path (r) volume path
521 * @param preset (r) default preset, may be NULL
522 * @returns vol on success, NULL on error
524 static struct vol *creatvol(AFPObj *obj,
525 const struct passwd *pwd,
532 struct vol *volume = NULL;
533 int suffixlen, vlen, tmpvlen, u8mvlen, macvlen;
534 char tmpname[AFPVOL_U8MNAMELEN+1];
535 ucs2_t u8mtmpname[(AFPVOL_U8MNAMELEN+1)*2], mactmpname[(AFPVOL_MACNAMELEN+1)*2];
536 char suffix[6]; /* max is #FFFF */
541 LOG(log_debug, logtype_afpd, "createvol(volume: '%s', path: \"%s\", preset: '%s'): BEGIN",
542 name, path, preset ? preset : "-");
544 if ( name == NULL || *name == '\0' ) {
545 if ((name = strrchr( path, '/' )) == NULL) {
549 /* if you wish to share /, you need to specify a name. */
554 /* Once volumes are loaded, we never change options again, we just delete em when they're removed from afp.conf */
555 for (struct vol *vol = Volumes; vol; vol = vol->v_next) {
556 if (STRCMP(path, ==, vol->v_path)) {
557 LOG(log_debug, logtype_afpd, "createvol('%s'): already loaded", name);
565 * Check allow/deny lists:
566 * allow -> either no list (-1), or in list (1)
567 * deny -> either no list (-1), or not in list (0)
570 if (accessvol(obj, getoption(obj->iniconfig, section, "deny", preset), pwd->pw_name) == 1)
572 if (accessvol(obj, getoption(obj->iniconfig, section, "allow", preset), pwd->pw_name) == 0)
574 if (hostaccessvol(obj, section, getoption(obj->iniconfig, section, "denied_hosts", preset)) == 1)
576 if (hostaccessvol(obj, section, getoption(obj->iniconfig, section, "allowed_hosts", preset)) == 0)
580 EC_NULL( volume = calloc(1, sizeof(struct vol)) );
582 volume->v_flags = AFPVOL_USEDOTS | AFPVOL_UNIX_PRIV;
583 EC_NULL( volume->v_configname = strdup(section));
586 volume->v_flags |= AFPVOL_ACLS;
588 volume->v_vfs_ea = AFPVOL_EA_AUTO;
589 volume->v_umask = obj->options.umask;
591 if (val = getoption(obj->iniconfig, section, "password", preset))
592 EC_NULL( volume->v_password = strdup(val) );
594 if (val = getoption(obj->iniconfig, section, "veto", preset))
595 EC_NULL( volume->v_password = strdup(val) );
597 if (val = getoption(obj->iniconfig, section, "volcharset", preset))
598 EC_NULL( volume->v_volcodepage = strdup(val) );
600 EC_NULL( volume->v_volcodepage = strdup("UTF8") );
602 if (val = getoption(obj->iniconfig, section, "maccharset", preset))
603 EC_NULL( volume->v_maccodepage = strdup(val) );
605 EC_NULL( volume->v_maccodepage = strdup(obj->options.maccodepage) );
607 if (val = getoption(obj->iniconfig, section, "dbpath", preset))
608 EC_NULL( volume->v_dbpath = volxlate(obj, NULL, MAXPATHLEN, val, pwd, path, name) );
610 if (val = getoption(obj->iniconfig, section, "cnidscheme", preset))
611 EC_NULL( volume->v_cnidscheme = strdup(val) );
613 if (val = getoption(obj->iniconfig, section, "umask", preset))
614 volume->v_umask = (int)strtol(val, NULL, 8);
616 if (val = getoption(obj->iniconfig, section, "dperm", preset))
617 volume->v_dperm = (int)strtol(val, NULL, 8);
619 if (val = getoption(obj->iniconfig, section, "fperm", preset))
620 volume->v_fperm = (int)strtol(val, NULL, 8);
622 if (val = getoption(obj->iniconfig, section, "perm", preset))
623 volume->v_perm = (int)strtol(val, NULL, 8);
625 if (val = getoption(obj->iniconfig, section, "volsizelimit", preset))
626 volume->v_limitsize = (uint32_t)strtoul(val, NULL, 10);
628 if (val = getoption(obj->iniconfig, section, "preexec", preset))
629 EC_NULL( volume->v_preexec = volxlate(obj, NULL, MAXPATHLEN, val, pwd, path, name) );
631 if (val = getoption(obj->iniconfig, section, "postexec", preset))
632 EC_NULL( volume->v_postexec = volxlate(obj, NULL, MAXPATHLEN, val, pwd, path, name) );
634 if (val = getoption(obj->iniconfig, section, "root_preexec", preset))
635 EC_NULL( volume->v_root_preexec = volxlate(obj, NULL, MAXPATHLEN, val, pwd, path, name) );
637 if (val = getoption(obj->iniconfig, section, "root_postexec", preset))
638 EC_NULL( volume->v_root_postexec = volxlate(obj, NULL, MAXPATHLEN, val, pwd, path, name) );
640 if (val = getoption(obj->iniconfig, section, "adouble", preset)) {
641 if (strcmp(val, "v2") == 0)
642 volume->v_adouble = AD_VERSION2;
643 else if (strcmp(val, "ea") == 0)
644 volume->v_adouble = AD_VERSION_EA;
646 volume->v_adouble = AD_VERSION;
649 if (val = getoption(obj->iniconfig, section, "cnidserver", preset)) {
650 EC_NULL( p = strdup(val) );
651 volume->v_cnidserver = p;
652 if (q = strrchr(val, ':')) {
654 volume->v_cnidport = q;
656 volume->v_cnidport = "4700";
661 if (val = getoption(obj->iniconfig, section, "ea", preset)) {
662 if (strcasecmp(val, "ad") == 0)
663 volume->v_vfs_ea = AFPVOL_EA_AD;
664 else if (strcasecmp(val, "sys") == 0)
665 volume->v_vfs_ea = AFPVOL_EA_SYS;
666 else if (strcasecmp(val, "none") == 0)
667 volume->v_vfs_ea = AFPVOL_EA_NONE;
670 if (val = getoption(obj->iniconfig, section, "casefold", preset)) {
671 if (strcasecmp(val, "tolower") == 0)
672 volume->v_casefold = AFPVOL_UMLOWER;
673 else if (strcasecmp(val, "toupper") == 0)
674 volume->v_casefold = AFPVOL_UMUPPER;
675 else if (strcasecmp(val, "xlatelower") == 0)
676 volume->v_casefold = AFPVOL_UUPPERMLOWER;
677 else if (strcasecmp(val, "xlateupper") == 0)
678 volume->v_casefold = AFPVOL_ULOWERMUPPER;
681 if (val = getoption(obj->iniconfig, section, "options", preset)) {
683 if (p = strtok(q, ", ")) {
685 if (strcasecmp(p, "ro") == 0)
686 volume->v_flags |= AFPVOL_RO;
687 else if (strcasecmp(p, "nohex") == 0)
688 volume->v_flags |= AFPVOL_NOHEX;
689 else if (strcasecmp(p, "nousedots") == 0)
690 volume->v_flags &= ~AFPVOL_USEDOTS;
691 else if (strcasecmp(p, "invisibledots") == 0)
692 volume->v_flags |= volume->v_flags;
693 else if (strcasecmp(p, "nostat") == 0)
694 volume->v_flags |= AFPVOL_NOSTAT;
695 else if (strcasecmp(p, "noupriv") == 0)
696 volume->v_flags &= ~AFPVOL_UNIX_PRIV;
697 else if (strcasecmp(p, "nodev") == 0)
698 volume->v_flags |= AFPVOL_NODEV;
699 else if (strcasecmp(p, "caseinsensitive") == 0)
700 volume->v_flags |= AFPVOL_CASEINSEN;
701 else if (strcasecmp(p, "illegalseq") == 0)
702 volume->v_flags |= AFPVOL_EILSEQ;
703 else if (strcasecmp(p, "tm") == 0)
704 volume->v_flags |= AFPVOL_TM;
705 else if (strcasecmp(p, "searchdb") == 0)
706 volume->v_flags |= AFPVOL_SEARCHDB;
707 else if (strcasecmp(p, "nonetids") == 0)
708 volume->v_flags |= AFPVOL_NONETIDS;
709 else if (strcasecmp(p, "noacls") == 0)
710 volume->v_flags &= ~AFPVOL_ACLS;
711 else if (strcasecmp(p, "nov2toeaconv") == 0)
712 volume->v_flags |= AFPVOL_NOV2TOEACONV;
713 else if (strcasecmp(p, "preexec_close") == 0)
714 volume->v_preexec_close = 1;
715 else if (strcasecmp(p, "root_preexec_close") == 0)
716 volume->v_root_preexec_close = 1;
717 p = strtok(NULL, ", ");
724 * Handle read-only behaviour. semantics:
725 * 1) neither the rolist nor the rwlist exist -> rw
726 * 2) rolist exists -> ro if user is in it.
727 * 3) rwlist exists -> ro unless user is in it.
730 if (accessvol(obj, getoption(obj->iniconfig, section, "rolist", preset), pwd->pw_name) == 1
731 || accessvol(obj, getoption(obj->iniconfig, section, "rwlist", preset), pwd->pw_name) == 0)
732 volume->v_flags |= AFPVOL_RO;
735 if ((volume->v_flags & AFPVOL_NODEV))
736 volume->v_ad_options |= ADVOL_NODEV;
737 if ((volume->v_flags & AFPVOL_UNIX_PRIV))
738 volume->v_ad_options |= ADVOL_UNIXPRIV;
739 if ((volume->v_flags & AFPVOL_INV_DOTS))
740 volume->v_ad_options |= ADVOL_INVDOTS;
742 /* Mac to Unix conversion flags*/
743 if (!(volume->v_flags & AFPVOL_NOHEX))
744 volume->v_mtou_flags |= CONV_ESCAPEHEX;
745 if (!(volume->v_flags & AFPVOL_USEDOTS))
746 volume->v_mtou_flags |= CONV_ESCAPEDOTS;
747 if ((volume->v_flags & AFPVOL_EILSEQ))
748 volume->v_mtou_flags |= CONV__EILSEQ;
750 if ((volume->v_casefold & AFPVOL_MTOUUPPER))
751 volume->v_mtou_flags |= CONV_TOUPPER;
752 else if ((volume->v_casefold & AFPVOL_MTOULOWER))
753 volume->v_mtou_flags |= CONV_TOLOWER;
755 /* Unix to Mac conversion flags*/
756 volume->v_utom_flags = CONV_IGNORE | CONV_UNESCAPEHEX;
757 if ((volume->v_casefold & AFPVOL_UTOMUPPER))
758 volume->v_utom_flags |= CONV_TOUPPER;
759 else if ((volume->v_casefold & AFPVOL_UTOMLOWER))
760 volume->v_utom_flags |= CONV_TOLOWER;
761 if ((volume->v_flags & AFPVOL_EILSEQ))
762 volume->v_utom_flags |= CONV__EILSEQ;
764 /* suffix for mangling use (lastvid + 1) */
765 /* because v_vid has not been decided yet. */
766 suffixlen = sprintf(suffix, "#%X", lastvid + 1 );
769 vlen = strlen( name );
771 /* Unicode Volume Name */
772 /* Firstly convert name from unixcharset to UTF8-MAC */
774 tmpvlen = convert_charset(obj->options.unixcharset, CH_UTF8_MAC, 0, name, vlen, tmpname, AFPVOL_U8MNAMELEN, &flags);
776 strcpy(tmpname, "???");
780 /* Do we have to mangle ? */
781 if ( (flags & CONV_REQMANGLE) || (tmpvlen > obj->options.volnamelen)) {
782 if (tmpvlen + suffixlen > obj->options.volnamelen) {
784 tmpvlen = convert_charset(obj->options.unixcharset, CH_UTF8_MAC, 0, name, vlen, tmpname, obj->options.volnamelen - suffixlen, &flags);
785 tmpname[tmpvlen >= 0 ? tmpvlen : 0] = 0;
787 strcat(tmpname, suffix);
788 tmpvlen = strlen(tmpname);
791 /* Secondly convert name from UTF8-MAC to UCS2 */
792 if ( 0 >= ( u8mvlen = convert_string(CH_UTF8_MAC, CH_UCS2, tmpname, tmpvlen, u8mtmpname, AFPVOL_U8MNAMELEN*2)) )
795 LOG(log_maxdebug, logtype_afpd, "createvol: Volume '%s' -> UTF8-MAC Name: '%s'", name, tmpname);
797 /* Maccharset Volume Name */
798 /* Firsty convert name from unixcharset to maccharset */
800 tmpvlen = convert_charset(obj->options.unixcharset, obj->options.maccharset, 0, name, vlen, tmpname, AFPVOL_U8MNAMELEN, &flags);
802 strcpy(tmpname, "???");
806 /* Do we have to mangle ? */
807 if ( (flags & CONV_REQMANGLE) || (tmpvlen > AFPVOL_MACNAMELEN)) {
808 if (tmpvlen + suffixlen > AFPVOL_MACNAMELEN) {
810 tmpvlen = convert_charset(obj->options.unixcharset,
811 obj->options.maccharset,
816 AFPVOL_MACNAMELEN - suffixlen,
818 tmpname[tmpvlen >= 0 ? tmpvlen : 0] = 0;
820 strcat(tmpname, suffix);
821 tmpvlen = strlen(tmpname);
824 /* Secondly convert name from maccharset to UCS2 */
825 if ( 0 >= ( macvlen = convert_string(obj->options.maccharset,
830 AFPVOL_U8MNAMELEN*2)) )
833 LOG(log_maxdebug, logtype_afpd, "createvol: Volume '%s' -> Longname: '%s'", name, tmpname);
835 EC_NULL( volume->v_localname = strdup(name) );
836 EC_NULL( volume->v_u8mname = strdup_w(u8mtmpname) );
837 EC_NULL( volume->v_macname = strdup_w(mactmpname) );
838 EC_NULL( volume->v_path = malloc(strlen(path) + 1) );
840 volume->v_name = utf8_encoding(obj) ? volume->v_u8mname : volume->v_macname;
841 strcpy(volume->v_path, path);
845 #endif /* __svr4__ */
847 /* os X start at 1 and use network order ie. 1 2 3 */
848 volume->v_vid = ++lastvid;
849 volume->v_vid = htons(volume->v_vid);
852 if (!check_vol_acl_support(volume)) {
853 LOG(log_debug, logtype_afpd, "creatvol(\"%s\"): disabling ACL support", volume->v_path);
854 volume->v_flags &= ~AFPVOL_ACLS;
858 volume->v_dperm |= volume->v_perm;
859 volume->v_fperm |= volume->v_perm;
861 /* Check EA support on volume */
862 if (volume->v_vfs_ea == AFPVOL_EA_AUTO || volume->v_adouble == AD_VERSION_EA)
863 check_ea_support(volume);
866 /* get/store uuid from file in afpd master*/
867 if (!(pwd) && (volume->v_flags & AFPVOL_TM)) {
868 char *uuid = get_vol_uuid(obj, volume->v_localname);
870 LOG(log_error, logtype_afpd, "Volume '%s': couldn't get UUID",
871 volume->v_localname);
873 volume->v_uuid = uuid;
874 LOG(log_debug, logtype_afpd, "Volume '%s': UUID '%s'",
875 volume->v_localname, volume->v_uuid);
879 /* no errors shall happen beyond this point because the cleanup would mess the volume chain up */
880 volume->v_next = Volumes;
885 LOG(log_debug, logtype_afpd, "createvol: END: %d", ret);
896 /* ----------------------
898 static int volfile_changed(struct afp_options *p)
902 if (!stat(p->configfile, &st) && st.st_mtime > p->volfile.mtime) {
903 p->volfile.mtime = st.st_mtime;
909 static int vol_section(const char *sec)
911 if (STRCMP(sec, ==, INISEC_GLOBAL))
916 #define MAXPRESETLEN 100
918 * Read volumes from iniconfig and add the volumes contained within to
919 * the global volume list. This gets called from the forked afpd childs.
920 * The master now reads this too for Zeroconf announcements.
922 static int readvolfile(AFPObj *obj, const struct passwd *pwent)
925 char path[MAXPATHLEN + 1];
926 char volname[AFPVOL_U8MNAMELEN + 1];
927 char tmp[MAXPATHLEN + 1];
928 const char *preset, *default_preset, *p;
933 LOG(log_debug, logtype_afpd, "readvolfile: BEGIN");
935 int secnum = iniparser_getnsec(obj->iniconfig);
936 LOG(log_debug, logtype_afpd, "readvolfile: sections: %d", secnum);
939 if ((default_preset = iniparser_getstring(obj->iniconfig, INISEC_GLOBAL, "vol preset", NULL))) {
940 LOG(log_debug, logtype_afpd, "readvolfile: default_preset: %s", default_preset);
943 for (i = 0; i < secnum; i++) {
944 secname = iniparser_getsecname(obj->iniconfig, i);
946 if (!vol_section(secname))
948 if (STRCMP(secname, ==, INISEC_HOMES)) {
950 if (obj->username[0] == 0)
951 /* not an AFP session, but cnid daemon, dbd or ad util */
953 if ((p = iniparser_getstring(obj->iniconfig, INISEC_HOMES, "basedir", NULL)) == NULL)
955 strlcpy(tmp, p, MAXPATHLEN);
956 strlcat(tmp, "/", MAXPATHLEN);
957 strlcat(tmp, obj->username, MAXPATHLEN);
958 strlcat(tmp, "/", MAXPATHLEN);
959 if (p = iniparser_getstring(obj->iniconfig, INISEC_HOMES, "path", NULL))
960 strlcat(tmp, p, MAXPATHLEN);
963 if ((p = iniparser_getstring(obj->iniconfig, secname, "path", NULL)) == NULL)
965 strlcpy(tmp, p, MAXPATHLEN);
968 if (volxlate(obj, path, sizeof(path) - 1, tmp, pwent, NULL, NULL) == NULL)
971 /* do variable substitution for volume name */
972 if (STRCMP(secname, ==, INISEC_HOMES)) {
973 if (p = iniparser_getstring(obj->iniconfig, INISEC_HOMES, "name", "$u's home"))
974 strlcpy(tmp, p, MAXPATHLEN);
976 strlcpy(tmp, p, MAXPATHLEN);
978 strlcpy(tmp, secname, AFPVOL_U8MNAMELEN);
980 if (volxlate(obj, volname, sizeof(volname) - 1, tmp, pwent, path, NULL) == NULL)
983 preset = iniparser_getstring(obj->iniconfig, secname, "vol preset", NULL);
985 creatvol(obj, pwent, secname, volname, path, preset ? preset : default_preset ? default_preset : NULL);
992 /**************************************************************
994 **************************************************************/
997 * Remove a volume from the linked list of volumes
999 void volume_unlink(struct vol *volume)
1001 struct vol *vol, *ovol, *nvol;
1003 if (volume == Volumes) {
1007 for ( vol = Volumes->v_next, ovol = Volumes; vol; vol = nvol) {
1010 if (vol == volume) {
1011 ovol->v_next = nvol;
1021 * Free all resources allocated in a struct vol, only struct dir *v_root can't be freed
1023 void volume_free(struct vol *vol)
1025 LOG(log_debug, logtype_afpd, "volume_free('%s'): BEGIN", vol->v_localname);
1027 free(vol->v_localname);
1028 free(vol->v_u8mname);
1029 free(vol->v_macname);
1031 free(vol->v_password);
1033 free(vol->v_volcodepage);
1034 free(vol->v_maccodepage);
1035 free(vol->v_cnidscheme);
1036 free(vol->v_dbpath);
1039 free(vol->v_cnidserver);
1041 /* NO! Just points to v_cnidserver + x */
1042 free(vol->v_cnidport);
1044 free(vol->v_root_preexec);
1045 free(vol->v_postexec);
1047 LOG(log_debug, logtype_afpd, "volume_free: END");
1051 * Load charsets for a volume
1053 int load_charset(struct vol *vol)
1055 if ((vol->v_maccharset = add_charset(vol->v_maccodepage)) == (charset_t)-1) {
1056 LOG(log_error, logtype_default, "Setting Mac codepage '%s' failed", vol->v_maccodepage);
1060 if ((vol->v_volcharset = add_charset(vol->v_volcodepage)) == (charset_t)-1) {
1061 LOG(log_error, logtype_default, "Setting volume codepage '%s' failed", vol->v_volcodepage);
1069 * Initialize volumes and load ini configfile
1071 * Depending on the value of obj->uid either access checks are done (!=0) or skipped (=0)
1073 * @param obj (r) handle
1074 * @param delvol_fn (r) callback called for deleted volumes
1076 int load_volumes(AFPObj *obj, void (*delvol_fn)(struct vol *))
1080 struct passwd *pwent = NULL;
1085 LOG(log_debug, logtype_afpd, "load_volumes: BEGIN");
1088 if (!volfile_changed(&obj->options))
1091 for (vol = Volumes; vol; vol = vol->v_next) {
1092 if (vol->v_flags & AFPVOL_UNIX_CTXT)
1097 LOG(log_debug, logtype_afpd, "load_volumes: no volumes yet");
1098 EC_ZERO_LOG( lstat(obj->options.configfile, &st) );
1099 obj->options.volfile.mtime = st.st_mtime;
1102 /* try putting a read lock on the volume file twice, sleep 1 second if first attempt fails */
1104 fd = open(obj->options.configfile, O_RDONLY);
1106 while (retries < 2) {
1107 if ((read_lock(fd, 0, SEEK_SET, 0)) != 0) {
1110 LOG(log_error, logtype_afpd, "readvolfile: can't lock configfile \"%s\"",
1111 obj->options.configfile);
1121 pwent = getpwuid(obj->uid);
1124 iniparser_freedict(obj->iniconfig);
1125 LOG(log_debug, logtype_afpd, "load_volumes: loading: %s", obj->options.configfile);
1126 obj->iniconfig = iniparser_load(obj->options.configfile);
1128 EC_ZERO_LOG( readvolfile(obj, pwent) );
1130 for ( vol = Volumes; vol; vol = vol->v_next ) {
1131 if (vol->v_deleted) {
1132 LOG(log_debug, logtype_afpd, "load_volumes: deleted: %s", vol->v_localname);
1143 LOG(log_debug, logtype_afpd, "load_volumes: END");
1147 void unload_volumes(AFPObj *obj)
1151 LOG(log_debug, logtype_afpd, "unload_volumes: BEGIN");
1153 for (vol = Volumes; vol; vol = vol->v_next)
1156 obj->options.volfile.mtime = 0;
1158 LOG(log_debug, logtype_afpd, "unload_volumes: END");
1161 struct vol *getvolumes(void)
1166 struct vol *getvolbyvid(const uint16_t vid )
1170 for ( vol = Volumes; vol; vol = vol->v_next ) {
1171 if ( vid == vol->v_vid ) {
1175 if ( vol == NULL || ( vol->v_flags & AFPVOL_OPEN ) == 0 ) {
1182 struct vol *getvolbypath(AFPObj *obj, const char *path)
1187 const struct passwd *pw;
1188 char volname[AFPVOL_U8MNAMELEN + 1];
1189 char volpath[MAXPATHLEN + 1];
1190 char tmpbuf[MAXPATHLEN + 1];
1191 const char *secname, *basedir, *p = NULL, *subpath = NULL, *subpathconfig;
1192 char *user = NULL, *prw;
1194 LOG(log_debug, logtype_afpd, "getvolbypath(\"%s\")", path);
1196 for (tmp = Volumes; tmp; tmp = tmp->v_next) {
1197 if (strncmp(path, tmp->v_path, strlen(tmp->v_path)) == 0) {
1203 /* might be a user home, check for that and create a volume if yes */
1207 int secnum = iniparser_getnsec(obj->iniconfig);
1209 for (int i = 0; i < secnum; i++) {
1210 secname = iniparser_getsecname(obj->iniconfig, i);
1211 if (STRCMP(secname, ==, INISEC_HOMES))
1215 if (STRCMP(secname, !=, INISEC_HOMES))
1218 EC_NULL_LOG( basedir = iniparser_getstring(obj->iniconfig, INISEC_HOMES, "basedir", NULL) );
1220 LOG(log_debug, logtype_afpd, "getvolbypath: user home section: '%s', basedir: '%s'", secname, basedir);
1222 if (strncmp(path, basedir, strlen(basedir)) != 0)
1225 strlcpy(tmpbuf, basedir, MAXPATHLEN);
1226 strlcat(tmpbuf, "/", MAXPATHLEN);
1228 p = path + strlen(basedir);
1231 EC_NULL_LOG( user = strdup(p) );
1233 if (prw = strchr(user, '/'))
1238 strlcat(tmpbuf, user, MAXPATHLEN);
1239 strlcat(tmpbuf, "/", MAXPATHLEN);
1241 if (subpathconfig = iniparser_getstring(obj->iniconfig, INISEC_HOMES, "path", NULL)) {
1242 if (!subpath || strncmp(subpathconfig, subpath, strlen(subpathconfig)) != 0) {
1247 strlcat(tmpbuf, subpathconfig, MAXPATHLEN);
1248 strlcat(tmpbuf, "/", MAXPATHLEN);
1250 if (volxlate(obj, volpath, sizeof(volpath) - 1, tmpbuf, pw, NULL, NULL) == NULL)
1253 EC_NULL( pw = getpwnam(user) );
1255 LOG(log_debug, logtype_afpd, "getvolbypath(\"%s\"): user: %s, homedir: %s => volpath: \"%s\"",
1256 path, user, pw->pw_dir, volpath);
1258 /* do variable substitution for volume name */
1259 p = iniparser_getstring(obj->iniconfig, INISEC_HOMES, "name", "$u's home");
1260 strlcpy(tmpbuf, p, AFPVOL_U8MNAMELEN);
1261 EC_NULL_LOG( volxlate(obj, volname, sizeof(volname) - 1, tmpbuf, pw, volpath, NULL) );
1263 const char *preset, *default_preset;
1264 default_preset = iniparser_getstring(obj->iniconfig, INISEC_GLOBAL, "vol preset", NULL);
1265 preset = iniparser_getstring(obj->iniconfig, INISEC_HOMES, "vol preset", NULL);
1267 vol = creatvol(obj, pw, INISEC_HOMES, volname, volpath, preset ? preset : default_preset ? default_preset : NULL);
1278 struct vol *getvolbyname(const char *name)
1280 struct vol *vol = NULL;
1283 for (tmp = Volumes; tmp; tmp = tmp->v_next) {
1284 if (strncmp(name, tmp->v_configname, strlen(tmp->v_configname)) == 0) {
1294 * Initialize an AFPObj and options from ini config file
1296 int afp_config_parse(AFPObj *AFPObj)
1300 struct afp_options *options = &AFPObj->options;
1302 const char *p, *tmp;
1306 AFPObj->afp_version = 11;
1307 options->configfile = AFPObj->cmdlineconfigfile ? strdup(AFPObj->cmdlineconfigfile) : strdup(_PATH_CONFDIR "afp.conf");
1308 options->sigconffile = strdup(_PATH_CONFDIR "afp_signature.conf");
1309 options->uuidconf = strdup(_PATH_CONFDIR "afp_voluuid.conf");
1310 options->flags = OPTION_ACL2MACCESS | OPTION_UUID | OPTION_SERVERNOTIF | AFPObj->cmdlineflags;
1312 if ((config = iniparser_load(AFPObj->options.configfile)) == NULL)
1314 AFPObj->iniconfig = config;
1317 options->logconfig = iniparser_getstrdup(config, INISEC_GLOBAL, "loglevel", "default:note");
1318 options->logfile = iniparser_getstrdup(config, INISEC_GLOBAL, "logfile", NULL);
1320 /* [AFP] "options" options wo values */
1321 if (p = iniparser_getstrdup(config, INISEC_GLOBAL, "options", NULL)) {
1322 if (p = strtok(q, ", ")) {
1324 if (strcasecmp(p, "nozeroconf"))
1325 options->flags |= OPTION_NOZEROCONF;
1326 if (strcasecmp(p, "icon"))
1327 options->flags |= OPTION_CUSTOMICON;
1328 if (strcasecmp(p, "noicon"))
1329 options->flags &= ~OPTION_CUSTOMICON;
1330 if (strcasecmp(p, "advertise_ssh"))
1331 options->flags |= OPTION_ANNOUNCESSH;
1332 if (strcasecmp(p, "noacl2maccess"))
1333 options->flags &= ~OPTION_ACL2MACCESS;
1334 if (strcasecmp(p, "keepsessions"))
1335 options->flags |= OPTION_KEEPSESSIONS;
1336 if (strcasecmp(p, "closevol"))
1337 options->flags |= OPTION_CLOSEVOL;
1338 if (strcasecmp(p, "client_polling"))
1339 options->flags &= ~OPTION_SERVERNOTIF;
1340 if (strcasecmp(p, "nosavepassword"))
1341 options->passwdbits |= PASSWD_NOSAVE;
1342 if (strcasecmp(p, "savepassword"))
1343 options->passwdbits &= ~PASSWD_NOSAVE;
1344 if (strcasecmp(p, "nosetpassword"))
1345 options->passwdbits &= ~PASSWD_SET;
1346 if (strcasecmp(p, "setpassword"))
1347 options->passwdbits |= PASSWD_SET;
1348 p = strtok(NULL, ", ");
1352 /* figure out options w values */
1354 options->loginmesg = iniparser_getstrdup(config, INISEC_GLOBAL, "loginmesg", "");
1355 options->guest = iniparser_getstrdup(config, INISEC_GLOBAL, "guestname", "nobody");
1356 options->passwdfile = iniparser_getstrdup(config, INISEC_GLOBAL, "passwdfile", _PATH_AFPDPWFILE);
1357 options->uampath = iniparser_getstrdup(config, INISEC_GLOBAL, "uampath", _PATH_AFPDUAMPATH);
1358 options->uamlist = iniparser_getstrdup(config, INISEC_GLOBAL, "uamlist", "uams_dhx.so,uams_dhx2.so");
1359 options->port = iniparser_getstrdup(config, INISEC_GLOBAL, "afp port", "548");
1360 options->signatureopt = iniparser_getstrdup(config, INISEC_GLOBAL, "signature", "auto");
1361 options->k5service = iniparser_getstrdup(config, INISEC_GLOBAL, "k5service", NULL);
1362 options->k5realm = iniparser_getstrdup(config, INISEC_GLOBAL, "k5realm", NULL);
1363 options->listen = iniparser_getstrdup(config, INISEC_GLOBAL, "afp listen", NULL);
1364 options->ntdomain = iniparser_getstrdup(config, INISEC_GLOBAL, "ntdomain", NULL);
1365 options->ntseparator = iniparser_getstrdup(config, INISEC_GLOBAL, "ntseparator", NULL);
1366 options->mimicmodel = iniparser_getstrdup(config, INISEC_GLOBAL, "mimicmodel", NULL);
1367 options->adminauthuser = iniparser_getstrdup(config, INISEC_GLOBAL, "adminauthuser", NULL);
1368 options->connections = iniparser_getint (config, INISEC_GLOBAL, "maxcon", 200);
1369 options->passwdminlen = iniparser_getint (config, INISEC_GLOBAL, "passwdminlen", 0);
1370 options->tickleval = iniparser_getint (config, INISEC_GLOBAL, "tickleval", 30);
1371 options->timeout = iniparser_getint (config, INISEC_GLOBAL, "timeout", 4);
1372 options->dsireadbuf = iniparser_getint (config, INISEC_GLOBAL, "dsireadbuf", 12);
1373 options->server_quantum = iniparser_getint (config, INISEC_GLOBAL, "server_quantum", DSI_SERVQUANT_DEF);
1374 options->volnamelen = iniparser_getint (config, INISEC_GLOBAL, "volnamelen", 80);
1375 options->dircachesize = iniparser_getint (config, INISEC_GLOBAL, "dircachesize", DEFAULT_MAX_DIRCACHE_SIZE);
1376 options->tcp_sndbuf = iniparser_getint (config, INISEC_GLOBAL, "tcpsndbuf", 0);
1377 options->tcp_rcvbuf = iniparser_getint (config, INISEC_GLOBAL, "tcprcvbuf", 0);
1378 options->fce_fmodwait = iniparser_getint (config, INISEC_GLOBAL, "fceholdfmod", 60);
1379 options->sleep = iniparser_getint (config, INISEC_GLOBAL, "sleep", 10);
1380 options->disconnected = iniparser_getint (config, INISEC_GLOBAL, "disconnect", 24);
1382 if ((p = iniparser_getstring(config, INISEC_GLOBAL, "hostname", NULL))) {
1383 EC_NULL_LOG( options->hostname = strdup(p) );
1385 if (gethostname(val, sizeof(val)) < 0 ) {
1386 perror( "gethostname" );
1389 if ((q = strchr(val, '.')))
1391 options->hostname = strdup(val);
1394 if ((p = iniparser_getstring(config, INISEC_GLOBAL, "k5keytab", NULL))) {
1395 EC_NULL_LOG( options->k5keytab = malloc(strlen(p) + 14) );
1396 snprintf(options->k5keytab, strlen(p) + 14, "KRB5_KTNAME=%s", p);
1397 putenv(options->k5keytab);
1401 if ((p = iniparser_getstring(config, INISEC_GLOBAL, "admingroup", NULL))) {
1402 struct group *gr = getgrnam(p);
1404 options->admingid = gr->gr_gid;
1406 #endif /* ADMIN_GRP */
1408 q = iniparser_getstrdup(config, INISEC_GLOBAL, "cnidserver", "localhost:4700");
1409 r = strrchr(q, ':');
1412 options->Cnid_srv = strdup(q);
1414 options->Cnid_port = strdup(r + 1);
1416 options->Cnid_port = strdup("4700");
1417 LOG(log_debug, logtype_afpd, "CNID Server: %s:%s", options->Cnid_srv, options->Cnid_port);
1421 if ((q = iniparser_getstrdup(config, INISEC_GLOBAL, "fqdn", NULL))) {
1422 /* do a little checking for the domain name. */
1426 if (gethostbyname(q)) {
1429 EC_NULL_LOG( options->fqdn = strdup(q) );
1431 LOG(log_error, logtype_afpd, "error parsing -fqdn, gethostbyname failed for: %s", c);
1436 if (!(p = iniparser_getstring(config, INISEC_GLOBAL, "unixcodepage", NULL))) {
1437 options->unixcharset = CH_UNIX;
1438 options->unixcodepage = strdup("LOCALE");
1440 if ((options->unixcharset = add_charset(p)) == (charset_t)-1) {
1441 options->unixcharset = CH_UNIX;
1442 options->unixcodepage = strdup("LOCALE");
1443 LOG(log_warning, logtype_afpd, "Setting Unix codepage to '%s' failed", p);
1445 options->unixcodepage = strdup(p);
1449 if (!(p = iniparser_getstring(config, INISEC_GLOBAL, "maccodepage", NULL))) {
1450 options->maccharset = CH_MAC;
1451 options->maccodepage = strdup("MAC_ROMAN");
1453 if ((options->maccharset = add_charset(p)) == (charset_t)-1) {
1454 options->maccharset = CH_MAC;
1455 options->maccodepage = strdup("MAC_ROMAN");
1456 LOG(log_warning, logtype_afpd, "Setting Mac codepage to '%s' failed", p);
1458 options->maccodepage = strdup(p);
1462 /* Check for sane values */
1463 if (options->tickleval <= 0)
1464 options->tickleval = 30;
1465 options->disconnected *= 3600 / options->tickleval;
1466 options->sleep *= 3600 / options->tickleval;
1467 if (options->timeout <= 0)
1468 options->timeout = 4;
1469 if (options->sleep <= 4)
1470 options->disconnected = options->sleep = 4;
1471 if (options->dsireadbuf < 6)
1472 options->dsireadbuf = 6;
1473 if (options->volnamelen < 8)
1474 options->volnamelen = 8; /* max mangled volname "???#FFFF" */
1475 if (options->volnamelen > 255)
1476 options->volnamelen = 255; /* AFP3 spec */