diff options
Diffstat (limited to 'source3/libads/ads_struct.c')
| -rw-r--r-- | source3/libads/ads_struct.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/source3/libads/ads_struct.c b/source3/libads/ads_struct.c new file mode 100644 index 0000000000..be0374225b --- /dev/null +++ b/source3/libads/ads_struct.c @@ -0,0 +1,182 @@ +/* + Unix SMB/Netbios implementation. + Version 3.0 + ads (active directory) utility library + Copyright (C) Andrew Tridgell 2001 + Copyright (C) Andrew Bartlett 2001 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +static char *ads_build_dn(const char *realm) +{ + char *p, *r; + int numdots = 0; + char *ret; + int len; + + r = strdup(realm); + + if (!r || !*r) return r; + + for (p=r; *p; p++) { + if (*p == '.') numdots++; + } + + len = (numdots+1)*4 + strlen(r) + 1; + + ret = malloc(len); + strlcpy(ret,"dc=", len); + p=strtok(r,"."); + strlcat(ret, p, len); + + while ((p=strtok(NULL,"."))) { + strlcat(ret,",dc=", len); + strlcat(ret, p, len); + } + + free(r); + + return ret; +} + +#ifdef HAVE_KRB5 + +/* + get the default relm from krb5.conf +*/ +static char *get_default_realm(ADS_STRUCT *ads) +{ + BOOL ret; + krb5_context context; + char *realm; + + ret = krb5_init_context(&context); + if (ret) { + DEBUG(1,("krb5_init_context failed (%s)\n", error_message(ret))); + return NULL; + } + + ret = krb5_get_default_realm(context, &realm); + if (ret) { + DEBUG(1,("krb5_get_default_realm failed (%s)\n", error_message(ret))); + krb5_free_context(context); + return NULL; + } else { + DEBUG(5,("krb5_get_default_realm got (%s)\n", realm)); + } + krb5_free_context(context); + + return realm; +} + +#else +static char *get_default_realm(ADS_STRUCT *ads) +{ + /* We can't do this if we don't have krb5, + but save linking nightmares */ + DEBUG(5,("get_default_realm: not compiled with krb5.\n")); + return NULL; +} + +#endif + +#ifdef HAVE_LDAP +/* + find the ldap server from DNS +*/ +static char *find_ldap_server(ADS_STRUCT *ads) +{ + char *list = NULL; + + if (ldap_domain2hostlist(ads->realm, &list) == LDAP_SUCCESS) { + char *p; + p = strchr(list, ':'); + if (p) *p = 0; + return list; + } + + return NULL; +} + +#else + +static char *find_ldap_server(ADS_STRUCT *ads) +{ + /* Without LDAP this doesn't make much sense */ + return NULL; +} + +#endif + + +/* + initialise a ADS_STRUCT, ready for some ads_ ops +*/ +ADS_STRUCT *ads_init(const char *realm, + const char *ldap_server, + const char *bind_path) +{ + ADS_STRUCT *ads; + + ads = (ADS_STRUCT *)smb_xmalloc(sizeof(*ads)); + memset(ads, 0, sizeof(*ads)); + + ads->realm = realm? strdup(realm) : NULL; + ads->ldap_server = ldap_server? strdup(ldap_server) : NULL; + ads->bind_path = bind_path? strdup(bind_path) : NULL; + ads->ldap_port = LDAP_PORT; + + if (!ads->realm) { + ads->realm = lp_realm(); + if (!ads->realm[0]) { + ads->realm = get_default_realm(ads); + } + } + if (!ads->bind_path) { + ads->bind_path = ads_build_dn(ads->realm); + } + if (!ads->ldap_server) { + ads->ldap_server = lp_ads_server(); + if (!ads->ldap_server[0]) { + ads->ldap_server = find_ldap_server(ads); + } + } + if (!ads->kdc_server) { + /* assume its the same as LDAP */ + ads->kdc_server = ads->ldap_server? strdup(ads->ldap_server) : NULL; + } + + return ads; +} + +/* + free the memory used by the ADS structure initialized with 'ads_init(...)' +*/ +void ads_destroy(ADS_STRUCT **ads) +{ + if (False && (ads) && (*ads)) { + if ((*ads)->ld) ldap_unbind((*ads)->ld); + SAFE_FREE((*ads)->realm); + SAFE_FREE((*ads)->ldap_server); + SAFE_FREE((*ads)->kdc_server); + SAFE_FREE((*ads)->bind_path); + ZERO_STRUCTP(*ads); + SAFE_FREE(*ads); + } +} + |