/*
- Unix SMB/Netbios implementation.
- Version 3.0
+ Unix SMB/CIFS implementation.
ads (active directory) utility library
Copyright (C) Andrew Tridgell 2001
+ Copyright (C) Remus Koos 2001
+ Copyright (C) Jim McDonough 2002
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
#include "includes.h"
-#ifdef HAVE_ADS
+#ifdef HAVE_LDAP
+
+/**
+ * @file ldap.c
+ * @brief basic ldap client-side routines for ads server communications
+ *
+ * The routines contained here should do the necessary ldap calls for
+ * ads setups.
+ *
+ * Important note: attribute names passed into ads_ routines must
+ * already be in UTF-8 format. We do not convert them because in almost
+ * all cases, they are just ascii (which is represented with the same
+ * codepoints in UTF-8). This may have to change at some point
+ **/
+
-/* return a dn of the form "dc=AA,dc=BB,dc=CC" from a
- realm of the form AA.BB.CC
- caller must free
-*/
/*
- return a string for an error from a ads routine
-*/
-char *ads_errstr(int rc)
+ try a connection to a given ldap server, returning True and setting the servers IP
+ in the ads struct if successful
+ */
+static BOOL ads_try_connect(ADS_STRUCT *ads, const char *server, unsigned port)
{
- return ldap_err2string(rc);
+ char *srv;
+
+ if (!server || !*server) {
+ return False;
+ }
+
+ DEBUG(5,("ads_try_connect: trying ldap server '%s' port %u\n", server, port));
+
+ /* this copes with inet_ntoa brokenness */
+ srv = strdup(server);
+
+ ads->ld = ldap_open(srv, port);
+ if (!ads->ld) {
+ free(srv);
+ return False;
+ }
+ ads->ldap_port = port;
+ ads->ldap_ip = *interpret_addr2(srv);
+ free(srv);
+
+ return True;
}
/*
- this is a minimal interact function, just enough for SASL to talk
- GSSAPI/kerberos to W2K
- Error handling is a bit of a problem. I can't see how to get Cyrus-sasl
- to give sensible errors
-*/
-static int sasl_interact(LDAP *ld,unsigned flags,void *defaults,void *in)
+ try a connection to a given ldap server, based on URL, returning True if successful
+ */
+static BOOL ads_try_connect_uri(ADS_STRUCT *ads)
{
- sasl_interact_t *interact = in;
+#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
+ DEBUG(5,("ads_try_connect: trying ldap server at URI '%s'\n",
+ ads->server.ldap_uri));
- while (interact->id != SASL_CB_LIST_END) {
- interact->result = strdup("");
- interact->len = strlen(interact->result);
- interact++;
+
+ if (ldap_initialize((LDAP**)&(ads->ld), ads->server.ldap_uri) == LDAP_SUCCESS) {
+ return True;
}
+ DEBUG(0, ("ldap_initialize: %s\n", strerror(errno)));
- return LDAP_SUCCESS;
+#else
+
+ DEBUG(1, ("no URL support in LDAP libs!\n"));
+#endif
+
+ return False;
}
-/*
- connect to the LDAP server
-*/
-int ads_connect(ADS_STRUCT *ads)
+/* used by the IP comparison function */
+struct ldap_ip {
+ struct in_addr ip;
+ unsigned port;
+};
+
+/* compare 2 ldap IPs by nearness to our interfaces - used in qsort */
+static int ldap_ip_compare(struct ldap_ip *ip1, struct ldap_ip *ip2)
+{
+ return ip_compare(&ip1->ip, &ip2->ip);
+}
+
+/* try connecting to a ldap server via DNS */
+static BOOL ads_try_dns(ADS_STRUCT *ads)
+{
+ const char *c_realm;
+ const char *ptr;
+ char *realm;
+ char *list = NULL;
+ pstring tok;
+ struct ldap_ip *ip_list;
+ int count, i=0;
+
+ c_realm = ads->server.realm;
+ if (!c_realm || !*c_realm) {
+ c_realm = lp_realm();
+ }
+ if (!c_realm || !*c_realm) {
+ c_realm = ads->server.workgroup;
+ }
+ if (!c_realm || !*c_realm) {
+ c_realm = lp_workgroup();
+ }
+ if (!c_realm) {
+ return False;
+ }
+ realm = smb_xstrdup(c_realm);
+
+ DEBUG(6,("ads_try_dns: looking for realm '%s'\n", realm));
+ if (ldap_domain2hostlist(realm, &list) != LDAP_SUCCESS) {
+ SAFE_FREE(realm);
+ return False;
+ }
+
+ DEBUG(6,("ads_try_dns: ldap realm '%s' host list '%s'\n", realm, list));
+ SAFE_FREE(realm);
+
+ count = count_chars(list, ' ') + 1;
+ ip_list = malloc(count * sizeof(struct ldap_ip));
+ if (!ip_list) {
+ return False;
+ }
+
+ ptr = list;
+ while (next_token(&ptr, tok, " ", sizeof(tok))) {
+ unsigned port = LDAP_PORT;
+ char *p = strchr(tok, ':');
+ if (p) {
+ *p = 0;
+ port = atoi(p+1);
+ }
+ ip_list[i].ip = *interpret_addr2(tok);
+ ip_list[i].port = port;
+ if (!is_zero_ip(ip_list[i].ip)) {
+ i++;
+ }
+ }
+ free(list);
+
+ count = i;
+
+ /* we sort the list of addresses by closeness to our interfaces. This
+ tries to prevent us using a DC on the other side of the country */
+ if (count > 1) {
+ qsort(ip_list, count, sizeof(struct ldap_ip),
+ QSORT_CAST ldap_ip_compare);
+ }
+
+ for (i=0;i<count;i++) {
+ if (ads_try_connect(ads, inet_ntoa(ip_list[i].ip), ip_list[i].port)) {
+ free(ip_list);
+ return True;
+ }
+ }
+
+ SAFE_FREE(ip_list);
+ return False;
+}
+
+/* try connecting to a ldap server via netbios */
+static BOOL ads_try_netbios(ADS_STRUCT *ads)
+{
+ struct in_addr *ip_list, pdc_ip;
+ int count;
+ int i;
+ const char *workgroup = ads->server.workgroup;
+
+ if (!workgroup) {
+ workgroup = lp_workgroup();
+ }
+
+ DEBUG(6,("ads_try_netbios: looking for workgroup '%s'\n", workgroup));
+
+ /* try the PDC first */
+ if (get_pdc_ip(workgroup, &pdc_ip)) {
+ DEBUG(6,("ads_try_netbios: trying server '%s'\n",
+ inet_ntoa(pdc_ip)));
+ if (ads_try_connect(ads, inet_ntoa(pdc_ip), LDAP_PORT))
+ return True;
+ }
+
+ /* now any DC, including backups */
+ if (get_dc_list(workgroup, &ip_list, &count)) {
+ for (i=0;i<count;i++) {
+ DEBUG(6,("ads_try_netbios: trying server '%s'\n",
+ inet_ntoa(ip_list[i])));
+ if (ads_try_connect(ads, inet_ntoa(ip_list[i]), LDAP_PORT)) {
+ free(ip_list);
+ return True;
+ }
+ }
+ free(ip_list);
+ }
+
+ return False;
+}
+
+/**
+ * Connect to the LDAP server
+ * @param ads Pointer to an existing ADS_STRUCT
+ * @return status of connection
+ **/
+ADS_STATUS ads_connect(ADS_STRUCT *ads)
{
int version = LDAP_VERSION3;
- int rc;
+ ADS_STATUS status;
ads->last_attempt = time(NULL);
+ ads->ld = NULL;
- ads->ld = ldap_open(ads->ldap_server, ads->ldap_port);
- if (!ads->ld) {
- return errno;
+ /* try with a URL based server */
+
+ if (ads->server.ldap_uri &&
+ ads_try_connect_uri(ads)) {
+ goto got_connection;
+ }
+
+ /* try with a user specified server */
+ if (ads->server.ldap_server &&
+ ads_try_connect(ads, ads->server.ldap_server, LDAP_PORT)) {
+ goto got_connection;
+ }
+
+ /* try with a smb.conf ads server setting if we are connecting
+ to the primary workgroup or realm */
+ if (!ads->server.foreign &&
+ ads_try_connect(ads, lp_ads_server(), LDAP_PORT)) {
+ goto got_connection;
+ }
+
+ /* try via DNS */
+ if (ads_try_dns(ads)) {
+ goto got_connection;
+ }
+
+ /* try via netbios lookups */
+ if (!lp_disable_netbios() && ads_try_netbios(ads)) {
+ goto got_connection;
}
+
+ return ADS_ERROR_SYSTEM(errno?errno:ENOENT);
+
+got_connection:
+ DEBUG(3,("Connected to LDAP server %s\n", inet_ntoa(ads->ldap_ip)));
+
+ status = ads_server_info(ads);
+ if (!ADS_ERR_OK(status)) {
+ DEBUG(1,("Failed to get ldap server info\n"));
+ return status;
+ }
+
ldap_set_option(ads->ld, LDAP_OPT_PROTOCOL_VERSION, &version);
- rc = ldap_sasl_interactive_bind_s(ads->ld, NULL, NULL, NULL, NULL,
- LDAP_SASL_QUIET,
- sasl_interact, NULL);
+ if (!ads->auth.user_name) {
+ /* by default use the machine account */
+ fstring myname;
+ fstrcpy(myname, global_myname());
+ strlower(myname);
+ asprintf(&ads->auth.user_name, "HOST/%s", myname);
+ }
+
+ if (!ads->auth.realm) {
+ ads->auth.realm = strdup(ads->config.realm);
+ }
+
+ if (!ads->auth.kdc_server) {
+ ads->auth.kdc_server = strdup(inet_ntoa(ads->ldap_ip));
+ }
+
+#if KRB5_DNS_HACK
+ /* this is a really nasty hack to avoid ADS DNS problems. It needs a patch
+ to MIT kerberos to work (tridge) */
+ {
+ char *env;
+ asprintf(&env, "KRB5_KDC_ADDRESS_%s", ads->config.realm);
+ setenv(env, ads->auth.kdc_server, 1);
+ free(env);
+ }
+#endif
+
+ if (ads->auth.flags & ADS_AUTH_NO_BIND) {
+ return ADS_SUCCESS;
+ }
+
+ if (ads->auth.flags & ADS_AUTH_ANON_BIND) {
+ return ADS_ERROR(ldap_simple_bind_s( ads->ld, NULL, NULL));
+ }
+
+ if (ads->auth.flags & ADS_AUTH_SIMPLE_BIND) {
+ return ADS_ERROR(ldap_simple_bind_s( ads->ld, ads->auth.user_name, ads->auth.password));
+ }
- return rc;
+ return ads_sasl_bind(ads);
}
/*
- a wrapper around ldap_search_s that retries depending on the error code
- this is supposed to catch dropped connections and auto-reconnect
-*/
-int ads_search_retry(ADS_STRUCT *ads, const char *bind_path, int scope, const char *exp,
- const char **attrs, void **res)
+ Duplicate a struct berval into talloc'ed memory
+ */
+static struct berval *dup_berval(TALLOC_CTX *ctx, const struct berval *in_val)
{
- struct timeval timeout;
- int rc = -1, rc2;
- int count = 3;
-
- if (!ads->ld &&
- time(NULL) - ads->last_attempt < ADS_RECONNECT_TIME) {
- return LDAP_SERVER_DOWN;
- }
-
- while (count--) {
- *res = NULL;
- timeout.tv_sec = ADS_SEARCH_TIMEOUT;
- timeout.tv_usec = 0;
- if (ads->ld) {
- rc = ldap_search_ext_s(ads->ld, bind_path, scope, exp, attrs, 0, NULL, NULL,
- &timeout, LDAP_NO_LIMIT, (LDAPMessage **)res);
- if (rc == 0) return rc;
+ struct berval *value;
+
+ if (!in_val) return NULL;
+
+ value = talloc_zero(ctx, sizeof(struct berval));
+ if (in_val->bv_len == 0) return value;
+
+ value->bv_len = in_val->bv_len;
+ value->bv_val = talloc_memdup(ctx, in_val->bv_val, in_val->bv_len);
+ return value;
+}
+
+/*
+ Make a values list out of an array of (struct berval *)
+ */
+static struct berval **ads_dup_values(TALLOC_CTX *ctx,
+ const struct berval **in_vals)
+{
+ struct berval **values;
+ int i;
+
+ if (!in_vals) return NULL;
+ for (i=0; in_vals[i]; i++); /* count values */
+ values = (struct berval **) talloc_zero(ctx,
+ (i+1)*sizeof(struct berval *));
+ if (!values) return NULL;
+
+ for (i=0; in_vals[i]; i++) {
+ values[i] = dup_berval(ctx, in_vals[i]);
+ }
+ return values;
+}
+
+/*
+ UTF8-encode a values list out of an array of (char *)
+ */
+static char **ads_push_strvals(TALLOC_CTX *ctx, const char **in_vals)
+{
+ char **values;
+ int i;
+
+ if (!in_vals) return NULL;
+ for (i=0; in_vals[i]; i++); /* count values */
+ values = (char ** ) talloc_zero(ctx, (i+1)*sizeof(char *));
+ if (!values) return NULL;
+
+ for (i=0; in_vals[i]; i++) {
+ push_utf8_talloc(ctx, &values[i], in_vals[i]);
+ }
+ return values;
+}
+
+/*
+ Pull a (char *) array out of a UTF8-encoded values list
+ */
+static char **ads_pull_strvals(TALLOC_CTX *ctx, const char **in_vals)
+{
+ char **values;
+ int i;
+
+ if (!in_vals) return NULL;
+ for (i=0; in_vals[i]; i++); /* count values */
+ values = (char **) talloc_zero(ctx, (i+1)*sizeof(char *));
+ if (!values) return NULL;
+
+ for (i=0; in_vals[i]; i++) {
+ pull_utf8_talloc(ctx, &values[i], in_vals[i]);
+ }
+ return values;
+}
+
+/**
+ * Do a search with paged results. cookie must be null on the first
+ * call, and then returned on each subsequent call. It will be null
+ * again when the entire search is complete
+ * @param ads connection to ads server
+ * @param bind_path Base dn for the search
+ * @param scope Scope of search (LDAP_BASE | LDAP_ONE | LDAP_SUBTREE)
+ * @param exp Search expression - specified in local charset
+ * @param attrs Attributes to retrieve - specified in utf8 or ascii
+ * @param res ** which will contain results - free res* with ads_msgfree()
+ * @param count Number of entries retrieved on this page
+ * @param cookie The paged results cookie to be returned on subsequent calls
+ * @return status of search
+ **/
+ADS_STATUS ads_do_paged_search(ADS_STRUCT *ads, const char *bind_path,
+ int scope, const char *exp,
+ const char **attrs, void **res,
+ int *count, void **cookie)
+{
+ int rc, i, version;
+ char *utf8_exp, *utf8_path, **search_attrs;
+ LDAPControl PagedResults, NoReferrals, *controls[3], **rcontrols;
+ BerElement *cookie_be = NULL;
+ struct berval *cookie_bv= NULL;
+ TALLOC_CTX *ctx;
+
+ *res = NULL;
+
+ if (!(ctx = talloc_init()))
+ return ADS_ERROR(LDAP_NO_MEMORY);
+
+ /* 0 means the conversion worked but the result was empty
+ so we only fail if it's negative. In any case, it always
+ at least nulls out the dest */
+ if ((push_utf8_talloc(ctx, &utf8_exp, exp) < 0) ||
+ (push_utf8_talloc(ctx, &utf8_path, bind_path) < 0)) {
+ rc = LDAP_NO_MEMORY;
+ goto done;
+ }
+
+ if (!attrs || !(*attrs))
+ search_attrs = NULL;
+ else {
+ /* This would be the utf8-encoded version...*/
+ /* if (!(search_attrs = ads_push_strvals(ctx, attrs))) */
+ if (!(str_list_copy(&search_attrs, attrs))) {
+ rc = LDAP_NO_MEMORY;
+ goto done;
}
+ }
+
+
+ /* Paged results only available on ldap v3 or later */
+ ldap_get_option(ads->ld, LDAP_OPT_PROTOCOL_VERSION, &version);
+ if (version < LDAP_VERSION3) {
+ rc = LDAP_NOT_SUPPORTED;
+ goto done;
+ }
+
+ cookie_be = ber_alloc_t(LBER_USE_DER);
+ if (cookie && *cookie) {
+ ber_printf(cookie_be, "{iO}", (ber_int_t) 1000, *cookie);
+ ber_bvfree(*cookie); /* don't need it from last time */
+ *cookie = NULL;
+ } else {
+ ber_printf(cookie_be, "{io}", (ber_int_t) 1000, "", 0);
+ }
+ ber_flatten(cookie_be, &cookie_bv);
+ PagedResults.ldctl_oid = ADS_PAGE_CTL_OID;
+ PagedResults.ldctl_iscritical = (char) 1;
+ PagedResults.ldctl_value.bv_len = cookie_bv->bv_len;
+ PagedResults.ldctl_value.bv_val = cookie_bv->bv_val;
+
+ NoReferrals.ldctl_oid = ADS_NO_REFERRALS_OID;
+ NoReferrals.ldctl_iscritical = (char) 0;
+ NoReferrals.ldctl_value.bv_len = 0;
+ NoReferrals.ldctl_value.bv_val = "";
+
+
+ controls[0] = &NoReferrals;
+ controls[1] = &PagedResults;
+ controls[2] = NULL;
- if (*res) ads_msgfree(ads, *res);
- *res = NULL;
- DEBUG(1,("Reopening ads connection after error %s\n", ads_errstr(rc)));
- if (ads->ld) {
- /* we should unbind here, but that seems to trigger openldap bugs :(
- ldap_unbind(ads->ld);
- */
+ *res = NULL;
+
+ /* we need to disable referrals as the openldap libs don't
+ handle them and paged results at the same time. Using them
+ together results in the result record containing the server
+ page control being removed from the result list (tridge/jmcd)
+
+ leaving this in despite the control that says don't generate
+ referrals, in case the server doesn't support it (jmcd)
+ */
+ ldap_set_option(ads->ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF);
+
+ rc = ldap_search_ext_s(ads->ld, utf8_path, scope, utf8_exp,
+ search_attrs, 0, controls,
+ NULL, NULL, LDAP_NO_LIMIT, (LDAPMessage **)res);
+
+ ber_free(cookie_be, 1);
+ ber_bvfree(cookie_bv);
+
+ if (rc) {
+ DEBUG(3,("ldap_search_ext_s(%s) -> %s\n", exp, ldap_err2string(rc)));
+ goto done;
+ }
+
+ rc = ldap_parse_result(ads->ld, *res, NULL, NULL, NULL,
+ NULL, &rcontrols, 0);
+
+ if (!rcontrols) {
+ goto done;
+ }
+
+ for (i=0; rcontrols[i]; i++) {
+ if (strcmp(ADS_PAGE_CTL_OID, rcontrols[i]->ldctl_oid) == 0) {
+ cookie_be = ber_init(&rcontrols[i]->ldctl_value);
+ ber_scanf(cookie_be,"{iO}", (ber_int_t *) count,
+ &cookie_bv);
+ /* the berval is the cookie, but must be freed when
+ it is all done */
+ if (cookie_bv->bv_len) /* still more to do */
+ *cookie=ber_bvdup(cookie_bv);
+ else
+ *cookie=NULL;
+ ber_bvfree(cookie_bv);
+ ber_free(cookie_be, 1);
+ break;
}
- ads->ld = NULL;
- rc2 = ads_connect(ads);
- if (rc2) {
- DEBUG(1,("ads_search_retry: failed to reconnect (%s)\n", ads_errstr(rc)));
- return rc2;
+ }
+ ldap_controls_free(rcontrols);
+
+done:
+ talloc_destroy(ctx);
+ /* if/when we decide to utf8-encode attrs, take out this next line */
+ str_list_free(&search_attrs);
+
+ return ADS_ERROR(rc);
+}
+
+
+/**
+ * Get all results for a search. This uses ads_do_paged_search() to return
+ * all entries in a large search.
+ * @param ads connection to ads server
+ * @param bind_path Base dn for the search
+ * @param scope Scope of search (LDAP_BASE | LDAP_ONE | LDAP_SUBTREE)
+ * @param exp Search expression
+ * @param attrs Attributes to retrieve
+ * @param res ** which will contain results - free res* with ads_msgfree()
+ * @return status of search
+ **/
+ADS_STATUS ads_do_search_all(ADS_STRUCT *ads, const char *bind_path,
+ int scope, const char *exp,
+ const char **attrs, void **res)
+{
+ void *cookie = NULL;
+ int count = 0;
+ ADS_STATUS status;
+
+ status = ads_do_paged_search(ads, bind_path, scope, exp, attrs, res,
+ &count, &cookie);
+
+ if (!ADS_ERR_OK(status)) return status;
+
+ while (cookie) {
+ void *res2 = NULL;
+ ADS_STATUS status2;
+ LDAPMessage *msg, *next;
+
+ status2 = ads_do_paged_search(ads, bind_path, scope, exp,
+ attrs, &res2, &count, &cookie);
+
+ if (!ADS_ERR_OK(status2)) break;
+
+ /* this relies on the way that ldap_add_result_entry() works internally. I hope
+ that this works on all ldap libs, but I have only tested with openldap */
+ for (msg = ads_first_entry(ads, res2); msg; msg = next) {
+ next = ads_next_entry(ads, msg);
+ ldap_add_result_entry((LDAPMessage **)res, msg);
}
+ /* note that we do not free res2, as the memory is now
+ part of the main returned list */
}
- DEBUG(1,("ads reopen failed after error %s\n", ads_errstr(rc)));
- return rc;
+
+ return status;
}
-/*
- do a general ADS search
-*/
-int ads_search(ADS_STRUCT *ads, void **res,
- const char *exp,
- const char **attrs)
+/**
+ * Run a function on all results for a search. Uses ads_do_paged_search() and
+ * runs the function as each page is returned, using ads_process_results()
+ * @param ads connection to ads server
+ * @param bind_path Base dn for the search
+ * @param scope Scope of search (LDAP_BASE | LDAP_ONE | LDAP_SUBTREE)
+ * @param exp Search expression - specified in local charset
+ * @param attrs Attributes to retrieve - specified in UTF-8 or ascii
+ * @param fn Function which takes attr name, values list, and data_area
+ * @param data_area Pointer which is passed to function on each call
+ * @return status of search
+ **/
+ADS_STATUS ads_do_search_all_fn(ADS_STRUCT *ads, const char *bind_path,
+ int scope, const char *exp, const char **attrs,
+ BOOL(*fn)(char *, void **, void *),
+ void *data_area)
{
- return ads_search_retry(ads, ads->bind_path, LDAP_SCOPE_SUBTREE, exp, attrs, res);
+ void *cookie = NULL;
+ int count = 0;
+ ADS_STATUS status;
+ void *res;
+
+ status = ads_do_paged_search(ads, bind_path, scope, exp, attrs, &res,
+ &count, &cookie);
+
+ if (!ADS_ERR_OK(status)) return status;
+
+ ads_process_results(ads, res, fn, data_area);
+ ads_msgfree(ads, res);
+
+ while (cookie) {
+ status = ads_do_paged_search(ads, bind_path, scope, exp, attrs,
+ &res, &count, &cookie);
+
+ if (!ADS_ERR_OK(status)) break;
+
+ ads_process_results(ads, res, fn, data_area);
+ ads_msgfree(ads, res);
+ }
+
+ return status;
}
-/*
- do a search on a specific DistinguishedName
-*/
-int ads_search_dn(ADS_STRUCT *ads, void **res,
- const char *dn,
- const char **attrs)
+/**
+ * Do a search with a timeout.
+ * @param ads connection to ads server
+ * @param bind_path Base dn for the search
+ * @param scope Scope of search (LDAP_BASE | LDAP_ONE | LDAP_SUBTREE)
+ * @param exp Search expression
+ * @param attrs Attributes to retrieve
+ * @param res ** which will contain results - free res* with ads_msgfree()
+ * @return status of search
+ **/
+ADS_STATUS ads_do_search(ADS_STRUCT *ads, const char *bind_path, int scope,
+ const char *exp,
+ const char **attrs, void **res)
+{
+ struct timeval timeout;
+ int rc;
+ char *utf8_exp, *utf8_path, **search_attrs = NULL;
+ TALLOC_CTX *ctx;
+
+ if (!(ctx = talloc_init())) {
+ DEBUG(1,("ads_do_search: talloc_init() failed!"));
+ return ADS_ERROR(LDAP_NO_MEMORY);
+ }
+
+ /* 0 means the conversion worked but the result was empty
+ so we only fail if it's negative. In any case, it always
+ at least nulls out the dest */
+ if ((push_utf8_talloc(ctx, &utf8_exp, exp) < 0) ||
+ (push_utf8_talloc(ctx, &utf8_path, bind_path) < 0)) {
+ DEBUG(1,("ads_do_search: push_utf8_talloc() failed!"));
+ rc = LDAP_NO_MEMORY;
+ goto done;
+ }
+
+ if (!attrs || !(*attrs))
+ search_attrs = NULL;
+ else {
+ /* This would be the utf8-encoded version...*/
+ /* if (!(search_attrs = ads_push_strvals(ctx, attrs))) */
+ if (!(str_list_copy(&search_attrs, attrs)))
+ {
+ DEBUG(1,("ads_do_search: str_list_copy() failed!"));
+ rc = LDAP_NO_MEMORY;
+ goto done;
+ }
+ }
+
+ timeout.tv_sec = ADS_SEARCH_TIMEOUT;
+ timeout.tv_usec = 0;
+ *res = NULL;
+
+ /* see the note in ads_do_paged_search - we *must* disable referrals */
+ ldap_set_option(ads->ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF);
+
+ rc = ldap_search_ext_s(ads->ld, utf8_path, scope, utf8_exp,
+ search_attrs, 0, NULL, NULL,
+ &timeout, LDAP_NO_LIMIT, (LDAPMessage **)res);
+
+ if (rc == LDAP_SIZELIMIT_EXCEEDED) {
+ DEBUG(3,("Warning! sizelimit exceeded in ldap. Truncating.\n"));
+ rc = 0;
+ }
+
+ done:
+ talloc_destroy(ctx);
+ /* if/when we decide to utf8-encode attrs, take out this next line */
+ str_list_free(&search_attrs);
+ return ADS_ERROR(rc);
+}
+/**
+ * Do a general ADS search
+ * @param ads connection to ads server
+ * @param res ** which will contain results - free res* with ads_msgfree()
+ * @param exp Search expression
+ * @param attrs Attributes to retrieve
+ * @return status of search
+ **/
+ADS_STATUS ads_search(ADS_STRUCT *ads, void **res,
+ const char *exp,
+ const char **attrs)
{
- return ads_search_retry(ads, dn, LDAP_SCOPE_BASE, "(objectclass=*)", attrs, res);
+ return ads_do_search(ads, ads->config.bind_path, LDAP_SCOPE_SUBTREE,
+ exp, attrs, res);
}
-/*
- free up memory from a ads_search
-*/
+/**
+ * Do a search on a specific DistinguishedName
+ * @param ads connection to ads server
+ * @param res ** which will contain results - free res* with ads_msgfree()
+ * @param dn DistinguishName to search
+ * @param attrs Attributes to retrieve
+ * @return status of search
+ **/
+ADS_STATUS ads_search_dn(ADS_STRUCT *ads, void **res,
+ const char *dn,
+ const char **attrs)
+{
+ return ads_do_search(ads, dn, LDAP_SCOPE_BASE, "(objectclass=*)", attrs, res);
+}
+
+/**
+ * Free up memory from a ads_search
+ * @param ads connection to ads server
+ * @param msg Search results to free
+ **/
void ads_msgfree(ADS_STRUCT *ads, void *msg)
{
if (!msg) return;
ldap_msgfree(msg);
}
-/*
- find a machine account given a hostname
-*/
-int ads_find_machine_acct(ADS_STRUCT *ads, void **res, const char *host)
+/**
+ * Free up memory from various ads requests
+ * @param ads connection to ads server
+ * @param mem Area to free
+ **/
+void ads_memfree(ADS_STRUCT *ads, void *mem)
{
- int ret;
+ SAFE_FREE(mem);
+}
+
+/**
+ * Get a dn from search results
+ * @param ads connection to ads server
+ * @param res Search results
+ * @return dn string
+ **/
+char *ads_get_dn(ADS_STRUCT *ads, void *res)
+{
+ char *utf8_dn, *unix_dn;
+
+ utf8_dn = ldap_get_dn(ads->ld, res);
+ pull_utf8_allocate((void **) &unix_dn, utf8_dn);
+ ldap_memfree(utf8_dn);
+ return unix_dn;
+}
+
+/**
+ * Find a machine account given a hostname
+ * @param ads connection to ads server
+ * @param res ** which will contain results - free res* with ads_msgfree()
+ * @param host Hostname to search for
+ * @return status of search
+ **/
+ADS_STATUS ads_find_machine_acct(ADS_STRUCT *ads, void **res, const char *host)
+{
+ ADS_STATUS status;
char *exp;
+ const char *attrs[] = {"*", "nTSecurityDescriptor", NULL};
/* the easiest way to find a machine account anywhere in the tree
is to look for hostname$ */
- asprintf(&exp, "(samAccountName=%s$)", host);
- ret = ads_search(ads, res, exp, NULL);
+ if (asprintf(&exp, "(samAccountName=%s$)", host) == -1) {
+ DEBUG(1, ("asprintf failed!\n"));
+ return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
+ }
+
+ status = ads_search(ads, res, exp, attrs);
free(exp);
- return ret;
+ return status;
+}
+
+/**
+ * Initialize a list of mods to be used in a modify request
+ * @param ctx An initialized TALLOC_CTX
+ * @return allocated ADS_MODLIST
+ **/
+ADS_MODLIST ads_init_mods(TALLOC_CTX *ctx)
+{
+#define ADS_MODLIST_ALLOC_SIZE 10
+ LDAPMod **mods;
+
+ if ((mods = (LDAPMod **) talloc_zero(ctx, sizeof(LDAPMod *) *
+ (ADS_MODLIST_ALLOC_SIZE + 1))))
+ /* -1 is safety to make sure we don't go over the end.
+ need to reset it to NULL before doing ldap modify */
+ mods[ADS_MODLIST_ALLOC_SIZE] = (LDAPMod *) -1;
+
+ return mods;
}
/*
- a convenient routine for adding a generic LDAP record
+ add an attribute to the list, with values list already constructed
*/
-int ads_gen_add(ADS_STRUCT *ads, const char *new_dn, ...)
+static ADS_STATUS ads_modlist_add(TALLOC_CTX *ctx, ADS_MODLIST *mods,
+ int mod_op, const char *name,
+ const void **invals)
{
- int i;
- va_list ap;
- LDAPMod **mods;
- char *name, *value;
- int ret;
-#define MAX_MOD_VALUES 10
-
- /* count the number of attributes */
- va_start(ap, new_dn);
- for (i=0; va_arg(ap, char *); i++) {
- /* skip the values */
- while (va_arg(ap, char *)) ;
- }
- va_end(ap);
-
- mods = malloc(sizeof(LDAPMod *) * (i+1));
-
- va_start(ap, new_dn);
- for (i=0; (name=va_arg(ap, char *)); i++) {
- char **values;
- int j;
- values = (char **)malloc(sizeof(char *) * (MAX_MOD_VALUES+1));
- for (j=0; (value=va_arg(ap, char *)) && j < MAX_MOD_VALUES; j++) {
- values[j] = value;
- }
- values[j] = NULL;
- mods[i] = malloc(sizeof(LDAPMod));
- mods[i]->mod_type = name;
- mods[i]->mod_op = LDAP_MOD_ADD;
- mods[i]->mod_values = values;
+ int curmod;
+ LDAPMod **modlist = (LDAPMod **) *mods;
+ void **values;
+
+ if (!invals) {
+ values = NULL;
+ mod_op = LDAP_MOD_DELETE;
+ } else {
+ if (mod_op & LDAP_MOD_BVALUES)
+ values = (void **) ads_dup_values(ctx,
+ (const struct berval **)invals);
+ else
+ values = (void **) ads_push_strvals(ctx,
+ (const char **) invals);
+ }
+
+ /* find the first empty slot */
+ for (curmod=0; modlist[curmod] && modlist[curmod] != (LDAPMod *) -1;
+ curmod++);
+ if (modlist[curmod] == (LDAPMod *) -1) {
+ if (!(modlist = talloc_realloc(ctx, modlist,
+ (curmod+ADS_MODLIST_ALLOC_SIZE+1)*sizeof(LDAPMod *))))
+ return ADS_ERROR(LDAP_NO_MEMORY);
+ memset(&modlist[curmod], 0,
+ ADS_MODLIST_ALLOC_SIZE*sizeof(LDAPMod *));
+ modlist[curmod+ADS_MODLIST_ALLOC_SIZE] = (LDAPMod *) -1;
+ *mods = modlist;
}
+
+ if (!(modlist[curmod] = talloc_zero(ctx, sizeof(LDAPMod))))
+ return ADS_ERROR(LDAP_NO_MEMORY);
+ modlist[curmod]->mod_type = talloc_strdup(ctx, name);
+ if (mod_op & LDAP_MOD_BVALUES)
+ modlist[curmod]->mod_bvalues = (struct berval **) values;
+ else
+ modlist[curmod]->mod_values = (char **) values;
+ modlist[curmod]->mod_op = mod_op;
+ return ADS_ERROR(LDAP_SUCCESS);
+}
+
+/**
+ * Add a single string value to a mod list
+ * @param ctx An initialized TALLOC_CTX
+ * @param mods An initialized ADS_MODLIST
+ * @param name The attribute name to add
+ * @param val The value to add - NULL means DELETE
+ * @return ADS STATUS indicating success of add
+ **/
+ADS_STATUS ads_mod_str(TALLOC_CTX *ctx, ADS_MODLIST *mods,
+ const char *name, const char *val)
+{
+ const char *values[2];
+
+ values[0] = val;
+ values[1] = NULL;
+
+ if (!val)
+ return ads_modlist_add(ctx, mods, LDAP_MOD_DELETE, name, NULL);
+ return ads_modlist_add(ctx, mods, LDAP_MOD_REPLACE, name,
+ (const void **) values);
+}
+
+/**
+ * Add an array of string values to a mod list
+ * @param ctx An initialized TALLOC_CTX
+ * @param mods An initialized ADS_MODLIST
+ * @param name The attribute name to add
+ * @param vals The array of string values to add - NULL means DELETE
+ * @return ADS STATUS indicating success of add
+ **/
+ADS_STATUS ads_mod_strlist(TALLOC_CTX *ctx, ADS_MODLIST *mods,
+ const char *name, const char **vals)
+{
+ if (!vals)
+ return ads_modlist_add(ctx, mods, LDAP_MOD_DELETE, name, NULL);
+ return ads_modlist_add(ctx, mods, LDAP_MOD_REPLACE,
+ name, (const void **) vals);
+}
+
+/**
+ * Add a single ber-encoded value to a mod list
+ * @param ctx An initialized TALLOC_CTX
+ * @param mods An initialized ADS_MODLIST
+ * @param name The attribute name to add
+ * @param val The value to add - NULL means DELETE
+ * @return ADS STATUS indicating success of add
+ **/
+static ADS_STATUS ads_mod_ber(TALLOC_CTX *ctx, ADS_MODLIST *mods,
+ const char *name, const struct berval *val)
+{
+ const struct berval *values[2];
+
+ values[0] = val;
+ values[1] = NULL;
+ if (!val)
+ return ads_modlist_add(ctx, mods, LDAP_MOD_DELETE, name, NULL);
+ return ads_modlist_add(ctx, mods, LDAP_MOD_REPLACE|LDAP_MOD_BVALUES,
+ name, (const void **) values);
+}
+
+/**
+ * Perform an ldap modify
+ * @param ads connection to ads server
+ * @param mod_dn DistinguishedName to modify
+ * @param mods list of modifications to perform
+ * @return status of modify
+ **/
+ADS_STATUS ads_gen_mod(ADS_STRUCT *ads, const char *mod_dn, ADS_MODLIST mods)
+{
+ int ret,i;
+ char *utf8_dn = NULL;
+ /*
+ this control is needed to modify that contains a currently
+ non-existent attribute (but allowable for the object) to run
+ */
+ LDAPControl PermitModify = {
+ ADS_PERMIT_MODIFY_OID,
+ {0, NULL},
+ (char) 1};
+ LDAPControl *controls[2];
+
+ controls[0] = &PermitModify;
+ controls[1] = NULL;
+
+ if (push_utf8_allocate(&utf8_dn, mod_dn) == -1) {
+ return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
+ }
+
+ /* find the end of the list, marked by NULL or -1 */
+ for(i=0;(mods[i]!=0)&&(mods[i]!=(LDAPMod *) -1);i++);
+ /* make sure the end of the list is NULL */
mods[i] = NULL;
- va_end(ap);
+ ret = ldap_modify_ext_s(ads->ld, utf8_dn,
+ (LDAPMod **) mods, controls, NULL);
+ SAFE_FREE(utf8_dn);
+ return ADS_ERROR(ret);
+}
- ret = ldap_add_s(ads->ld, new_dn, mods);
+/**
+ * Perform an ldap add
+ * @param ads connection to ads server
+ * @param new_dn DistinguishedName to add
+ * @param mods list of attributes and values for DN
+ * @return status of add
+ **/
+ADS_STATUS ads_gen_add(ADS_STRUCT *ads, const char *new_dn, ADS_MODLIST mods)
+{
+ int ret, i;
+ char *utf8_dn = NULL;
- for (i=0; mods[i]; i++) {
- free(mods[i]->mod_values);
- free(mods[i]);
+ if (push_utf8_allocate(&utf8_dn, new_dn) == -1) {
+ DEBUG(1, ("ads_gen_add: push_utf8_allocate failed!"));
+ return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
}
- free(mods);
- return ret;
+ /* find the end of the list, marked by NULL or -1 */
+ for(i=0;(mods[i]!=0)&&(mods[i]!=(LDAPMod *) -1);i++);
+ /* make sure the end of the list is NULL */
+ mods[i] = NULL;
+
+ ret = ldap_add_s(ads->ld, utf8_dn ? utf8_dn : new_dn, mods);
+ SAFE_FREE(utf8_dn);
+ return ADS_ERROR(ret);
+}
+
+/**
+ * Delete a DistinguishedName
+ * @param ads connection to ads server
+ * @param new_dn DistinguishedName to delete
+ * @return status of delete
+ **/
+ADS_STATUS ads_del_dn(ADS_STRUCT *ads, char *del_dn)
+{
+ int ret;
+ char *utf8_dn = NULL;
+ if (push_utf8_allocate(&utf8_dn, del_dn) == -1) {
+ DEBUG(1, ("ads_del_dn: push_utf8_allocate failed!"));
+ return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
+ }
+
+ ret = ldap_delete(ads->ld, utf8_dn ? utf8_dn : del_dn);
+ return ADS_ERROR(ret);
+}
+
+/**
+ * Build an org unit string
+ * if org unit is Computers or blank then assume a container, otherwise
+ * assume a \ separated list of organisational units
+ * @param org_unit Organizational unit
+ * @return org unit string - caller must free
+ **/
+char *ads_ou_string(const char *org_unit)
+{
+ if (!org_unit || !*org_unit || strcasecmp(org_unit, "Computers") == 0) {
+ return strdup("cn=Computers");
+ }
+
+ return ads_build_path(org_unit, "\\/", "ou=", 1);
}
+
+
/*
add a machine account to the ADS server
*/
-static int ads_add_machine_acct(ADS_STRUCT *ads, const char *hostname)
+static ADS_STATUS ads_add_machine_acct(ADS_STRUCT *ads, const char *hostname,
+ const char *org_unit)
{
- int ret;
+ ADS_STATUS ret;
char *host_spn, *host_upn, *new_dn, *samAccountName, *controlstr;
+ char *ou_str;
+ TALLOC_CTX *ctx;
+ ADS_MODLIST mods;
+ const char *objectClass[] = {"top", "person", "organizationalPerson",
+ "user", "computer", NULL};
+ const char *servicePrincipalName[3] = {NULL, NULL, NULL};
+ char *psp;
+ unsigned acct_control;
+
+ if (!(ctx = talloc_init_named("machine_account")))
+ return ADS_ERROR(LDAP_NO_MEMORY);
+
+ ret = ADS_ERROR(LDAP_NO_MEMORY);
+
+ if (!(host_spn = talloc_asprintf(ctx, "HOST/%s", hostname)))
+ goto done;
+ if (!(host_upn = talloc_asprintf(ctx, "%s@%s", host_spn, ads->config.realm)))
+ goto done;
+ ou_str = ads_ou_string(org_unit);
+ if (!ou_str) {
+ DEBUG(1, ("ads_ou_string returned NULL (malloc failure?)\n"));
+ goto done;
+ }
+ new_dn = talloc_asprintf(ctx, "cn=%s,%s,%s", hostname, ou_str,
+ ads->config.bind_path);
+ servicePrincipalName[0] = talloc_asprintf(ctx, "HOST/%s", hostname);
+ psp = talloc_asprintf(ctx, "HOST/%s.%s",
+ hostname,
+ ads->config.realm);
+ strlower(&psp[5]);
+ servicePrincipalName[1] = psp;
+
+ free(ou_str);
+ if (!new_dn)
+ goto done;
+
+ if (!(samAccountName = talloc_asprintf(ctx, "%s$", hostname)))
+ goto done;
+
+ acct_control = UF_WORKSTATION_TRUST_ACCOUNT | UF_DONT_EXPIRE_PASSWD;
+#ifndef ENCTYPE_ARCFOUR_HMAC
+ acct_control |= UF_USE_DES_KEY_ONLY;
+#endif
+ if (!(controlstr = talloc_asprintf(ctx, "%u", acct_control)))
+ goto done;
- asprintf(&host_spn, "HOST/%s", hostname);
- asprintf(&host_upn, "%s@%s", host_spn, ads->realm);
- asprintf(&new_dn, "cn=%s,cn=Computers,%s", hostname, ads->bind_path);
- asprintf(&samAccountName, "%s$", hostname);
- asprintf(&controlstr, "%u",
- UF_DONT_EXPIRE_PASSWD | UF_WORKSTATION_TRUST_ACCOUNT |
- UF_TRUSTED_FOR_DELEGATION | UF_USE_DES_KEY_ONLY);
-
- ret = ads_gen_add(ads, new_dn,
- "cn", hostname, NULL,
- "sAMAccountName", samAccountName, NULL,
- "objectClass",
- "top", "person", "organizationalPerson",
- "user", "computer", NULL,
- "userPrincipalName", host_upn, NULL,
- "servicePrincipalName", host_spn, NULL,
- "dNSHostName", hostname, NULL,
- "userAccountControl", controlstr, NULL,
- "operatingSystem", "Samba", NULL,
- "operatingSystemVersion", VERSION, NULL,
- NULL);
-
- free(host_spn);
- free(host_upn);
- free(new_dn);
- free(samAccountName);
- free(controlstr);
-
+ if (!(mods = ads_init_mods(ctx)))
+ goto done;
+
+ ads_mod_str(ctx, &mods, "cn", hostname);
+ ads_mod_str(ctx, &mods, "sAMAccountName", samAccountName);
+ ads_mod_strlist(ctx, &mods, "objectClass", objectClass);
+ ads_mod_str(ctx, &mods, "userPrincipalName", host_upn);
+ ads_mod_strlist(ctx, &mods, "servicePrincipalName", servicePrincipalName);
+ ads_mod_str(ctx, &mods, "dNSHostName", hostname);
+ ads_mod_str(ctx, &mods, "userAccountControl", controlstr);
+ ads_mod_str(ctx, &mods, "operatingSystem", "Samba");
+ ads_mod_str(ctx, &mods, "operatingSystemVersion", VERSION);
+
+ ads_gen_add(ads, new_dn, mods);
+ ret = ads_set_machine_sd(ads, hostname, new_dn);
+
+done:
+ talloc_destroy(ctx);
return ret;
}
}
}
+struct uuid {
+ uint32 i1;
+ uint16 i2;
+ uint16 i3;
+ uint8 s[8];
+};
+
+static void dump_guid(const char *field, struct berval **values)
+{
+ int i;
+ GUID guid;
+ for (i=0; values[i]; i++) {
+ memcpy(guid.info, values[i]->bv_val, sizeof(guid.info));
+ printf("%s: %s\n", field, uuid_string_static(guid));
+ }
+}
+
+/*
+ dump a sid result from ldap
+*/
+static void dump_sid(const char *field, struct berval **values)
+{
+ int i;
+ for (i=0; values[i]; i++) {
+ DOM_SID sid;
+ sid_parse(values[i]->bv_val, values[i]->bv_len, &sid);
+ printf("%s: %s\n", field, sid_string_static(&sid));
+ }
+}
+
+/*
+ dump ntSecurityDescriptor
+*/
+static void dump_sd(const char *filed, struct berval **values)
+{
+ prs_struct ps;
+
+ SEC_DESC *psd = 0;
+ TALLOC_CTX *ctx = 0;
+
+ if (!(ctx = talloc_init_named("sec_io_desc")))
+ return;
+
+ /* prepare data */
+ prs_init(&ps, values[0]->bv_len, ctx, UNMARSHALL);
+ prs_append_data(&ps, values[0]->bv_val, values[0]->bv_len);
+ ps.data_offset = 0;
+
+ /* parse secdesc */
+ if (!sec_io_desc("sd", &psd, &ps, 1)) {
+ prs_mem_free(&ps);
+ talloc_destroy(ctx);
+ return;
+ }
+ if (psd) ads_disp_sd(psd);
+
+ prs_mem_free(&ps);
+ talloc_destroy(ctx);
+}
+
/*
dump a string result from ldap
*/
-static void dump_string(const char *field, struct berval **values)
+static void dump_string(const char *field, char **values)
{
int i;
for (i=0; values[i]; i++) {
- printf("%s: %s\n", field, values[i]->bv_val);
+ printf("%s: %s\n", field, values[i]);
}
}
/*
- dump a record from LDAP on stdout
+ dump a field from LDAP on stdout
used for debugging
*/
-void ads_dump(ADS_STRUCT *ads, void *res)
+
+static BOOL ads_dump_field(char *field, void **values, void *data_area)
{
- char *field;
- void *msg;
- BerElement *b;
struct {
char *name;
+ BOOL string;
void (*handler)(const char *, struct berval **);
} handlers[] = {
- {"objectGUID", dump_binary},
- {"objectSid", dump_binary},
- {NULL, NULL}
+ {"objectGUID", False, dump_guid},
+ {"nTSecurityDescriptor", False, dump_sd},
+ {"dnsRecord", False, dump_binary},
+ {"objectSid", False, dump_sid},
+ {NULL, True, NULL}
};
-
- for (msg = ads_first_entry(ads, res); msg; msg = ads_next_entry(ads, msg)) {
- for (field = ldap_first_attribute(ads->ld, (LDAPMessage *)msg, &b);
- field;
- field = ldap_next_attribute(ads->ld, (LDAPMessage *)msg, b)) {
- struct berval **values;
- int i;
-
- values = ldap_get_values_len(ads->ld, (LDAPMessage *)msg, field);
-
- for (i=0; handlers[i].name; i++) {
- if (StrCaseCmp(handlers[i].name, field) == 0) {
- handlers[i].handler(field, values);
- break;
- }
- }
- if (!handlers[i].name) {
- dump_string(field, values);
+ int i;
+
+ if (!field) { /* must be end of an entry */
+ printf("\n");
+ return False;
+ }
+
+ for (i=0; handlers[i].name; i++) {
+ if (StrCaseCmp(handlers[i].name, field) == 0) {
+ if (!values) /* first time, indicate string or not */
+ return handlers[i].string;
+ handlers[i].handler(field, (struct berval **) values);
+ break;
+ }
+ }
+ if (!handlers[i].name) {
+ if (!values) /* first time, indicate string conversion */
+ return True;
+ dump_string(field, (char **)values);
+ }
+ return False;
+}
+
+/**
+ * Dump a result from LDAP on stdout
+ * used for debugging
+ * @param ads connection to ads server
+ * @param res Results to dump
+ **/
+
+void ads_dump(ADS_STRUCT *ads, void *res)
+{
+ ads_process_results(ads, res, ads_dump_field, NULL);
+}
+
+/**
+ * Walk through results, calling a function for each entry found.
+ * The function receives a field name, a berval * array of values,
+ * and a data area passed through from the start. The function is
+ * called once with null for field and values at the end of each
+ * entry.
+ * @param ads connection to ads server
+ * @param res Results to process
+ * @param fn Function for processing each result
+ * @param data_area user-defined area to pass to function
+ **/
+void ads_process_results(ADS_STRUCT *ads, void *res,
+ BOOL(*fn)(char *, void **, void *),
+ void *data_area)
+{
+ void *msg;
+ TALLOC_CTX *ctx;
+
+ if (!(ctx = talloc_init()))
+ return;
+
+ for (msg = ads_first_entry(ads, res); msg;
+ msg = ads_next_entry(ads, msg)) {
+ char *utf8_field;
+ BerElement *b;
+
+ for (utf8_field=ldap_first_attribute(ads->ld,
+ (LDAPMessage *)msg,&b);
+ utf8_field;
+ utf8_field=ldap_next_attribute(ads->ld,
+ (LDAPMessage *)msg,b)) {
+ struct berval **ber_vals;
+ char **str_vals, **utf8_vals;
+ char *field;
+ BOOL string;
+
+ pull_utf8_talloc(ctx, &field, utf8_field);
+ string = fn(field, NULL, data_area);
+
+ if (string) {
+ utf8_vals = ldap_get_values(ads->ld,
+ (LDAPMessage *)msg, field);
+ str_vals = ads_pull_strvals(ctx,
+ (const char **) utf8_vals);
+ fn(field, (void **) str_vals, data_area);
+ ldap_value_free(utf8_vals);
+ } else {
+ ber_vals = ldap_get_values_len(ads->ld,
+ (LDAPMessage *)msg, field);
+ fn(field, (void **) ber_vals, data_area);
+
+ ldap_value_free_len(ber_vals);
}
- ldap_value_free_len(values);
- ldap_memfree(field);
+ ldap_memfree(utf8_field);
}
+ ber_free(b, 0);
+ talloc_destroy_pool(ctx);
+ fn(NULL, NULL, data_area); /* completed an entry */
- ber_free(b, 1);
- printf("\n");
}
+ talloc_destroy(ctx);
}
-/*
- count how many replies are in a LDAPMessage
-*/
+/**
+ * count how many replies are in a LDAPMessage
+ * @param ads connection to ads server
+ * @param res Results to count
+ * @return number of replies
+ **/
int ads_count_replies(ADS_STRUCT *ads, void *res)
{
return ldap_count_entries(ads->ld, (LDAPMessage *)res);
}
-/*
- join a machine to a realm, creating the machine account
- and setting the machine password
-*/
-int ads_join_realm(ADS_STRUCT *ads, const char *hostname)
+/**
+ * Join a machine to a realm
+ * Creates the machine account and sets the machine password
+ * @param ads connection to ads server
+ * @param hostname name of host to add
+ * @param org_unit Organizational unit to place machine in
+ * @return status of join
+ **/
+ADS_STATUS ads_join_realm(ADS_STRUCT *ads, const char *hostname, const char *org_unit)
{
- int rc;
+ ADS_STATUS status;
LDAPMessage *res;
char *host;
host = strdup(hostname);
strlower(host);
- rc = ads_find_machine_acct(ads, (void **)&res, host);
- if (rc == LDAP_SUCCESS && ads_count_replies(ads, res) == 1) {
- DEBUG(0, ("Host account for %s already exists\n", host));
- return LDAP_SUCCESS;
+ status = ads_find_machine_acct(ads, (void **)&res, host);
+ if (ADS_ERR_OK(status) && ads_count_replies(ads, res) == 1) {
+ DEBUG(0, ("Host account for %s already exists - deleting old account\n", host));
+ status = ads_leave_realm(ads, host);
+ if (!ADS_ERR_OK(status)) {
+ DEBUG(0, ("Failed to delete host '%s' from the '%s' realm.\n",
+ host, ads->config.realm));
+ return status;
+ }
}
- rc = ads_add_machine_acct(ads, host);
- if (rc != LDAP_SUCCESS) {
- DEBUG(0, ("ads_add_machine_acct: %s\n", ads_errstr(rc)));
- return rc;
+ status = ads_add_machine_acct(ads, host, org_unit);
+ if (!ADS_ERR_OK(status)) {
+ DEBUG(0, ("ads_add_machine_acct: %s\n", ads_errstr(status)));
+ return status;
}
- rc = ads_find_machine_acct(ads, (void **)&res, host);
- if (rc != LDAP_SUCCESS || ads_count_replies(ads, res) != 1) {
+ status = ads_find_machine_acct(ads, (void **)&res, host);
+ if (!ADS_ERR_OK(status)) {
DEBUG(0, ("Host account test failed\n"));
- /* hmmm, we need NTSTATUS */
- return -1;
+ return status;
}
free(host);
- return LDAP_SUCCESS;
+ return status;
}
-/*
- delete a machine from the realm
-*/
-int ads_leave_realm(ADS_STRUCT *ads, const char *hostname)
+/**
+ * Delete a machine from the realm
+ * @param ads connection to ads server
+ * @param hostname Machine to remove
+ * @return status of delete
+ **/
+ADS_STATUS ads_leave_realm(ADS_STRUCT *ads, const char *hostname)
{
- int rc;
+ ADS_STATUS status;
void *res;
char *hostnameDN, *host;
+ int rc;
/* hostname must be lowercase */
host = strdup(hostname);
strlower(host);
- rc = ads_find_machine_acct(ads, &res, host);
- if (rc != LDAP_SUCCESS || ads_count_replies(ads, res) != 1) {
+ status = ads_find_machine_acct(ads, &res, host);
+ if (!ADS_ERR_OK(status)) {
DEBUG(0, ("Host account for %s does not exist.\n", host));
- return -1;
+ return status;
}
- hostnameDN = ldap_get_dn(ads->ld, (LDAPMessage *)res);
+ hostnameDN = ads_get_dn(ads, (LDAPMessage *)res);
rc = ldap_delete_s(ads->ld, hostnameDN);
- ldap_memfree(hostnameDN);
+ ads_memfree(ads, hostnameDN);
if (rc != LDAP_SUCCESS) {
- DEBUG(0, ("ldap_delete_s: %s\n", ads_errstr(rc)));
- return rc;
+ return ADS_ERROR(rc);
}
- rc = ads_find_machine_acct(ads, &res, host);
- if (rc == LDAP_SUCCESS && ads_count_replies(ads, res) == 1 ) {
- DEBUG(0, ("Failed to remove host account.\n"));
- /*hmmm, we need NTSTATUS */
- return -1;
+ status = ads_find_machine_acct(ads, &res, host);
+ if (ADS_ERR_OK(status) && ads_count_replies(ads, res) == 1) {
+ DEBUG(0, ("Failed to remove host account.\n"));
+ return status;
}
free(host);
- return LDAP_SUCCESS;
+ return status;
}
-
-NTSTATUS ads_set_machine_password(ADS_STRUCT *ads,
- const char *hostname,
- const char *password)
+/**
+ * add machine account to existing security descriptor
+ * @param ads connection to ads server
+ * @param hostname machine to add
+ * @param dn DN of security descriptor
+ * @return status
+ **/
+ADS_STATUS ads_set_machine_sd(ADS_STRUCT *ads, const char *hostname, char *dn)
{
- NTSTATUS ret;
- char *host = strdup(hostname);
- strlower(host);
- ret = krb5_set_password(ads->kdc_server, host, ads->realm, password);
- free(host);
- return ret;
-}
+ const char *attrs[] = {"ntSecurityDescriptor", "objectSid", 0};
+ char *exp = 0;
+ size_t sd_size = 0;
+ struct berval bval = {0, NULL};
+ prs_struct ps_wire;
+ LDAPMessage *res = 0;
+ LDAPMessage *msg = 0;
+ ADS_MODLIST mods = 0;
-/*
- return a RFC2254 binary string representation of a buffer
- used in filters
- caller must free
-*/
-char *ads_binary_string(char *buf, int len)
-{
- char *s;
- int i, j;
- const char *hex = "0123456789ABCDEF";
- s = malloc(len * 3 + 1);
- if (!s) return NULL;
- for (j=i=0;i<len;i++) {
- s[j] = '\\';
- s[j+1] = hex[((unsigned char)buf[i]) >> 4];
- s[j+2] = hex[((unsigned char)buf[i]) & 0xF];
- j += 3;
+ NTSTATUS status;
+ ADS_STATUS ret;
+ DOM_SID sid;
+ SEC_DESC *psd = 0;
+ TALLOC_CTX *ctx = 0;
+
+ if (!ads) return ADS_ERROR(LDAP_SERVER_DOWN);
+
+ ret = ADS_ERROR(LDAP_SUCCESS);
+
+ if (asprintf(&exp, "(samAccountName=%s$)", hostname) == -1) {
+ DEBUG(1, ("ads_set_machine_sd: asprintf failed!\n"));
+ return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
}
- s[j] = 0;
- return s;
-}
-/*
- return the binary string representation of a DOM_SID
- caller must free
-*/
-char *ads_sid_binstring(DOM_SID *sid)
-{
- char *buf, *s;
- int len = sid_size(sid);
- buf = malloc(len);
- if (!buf) return NULL;
- sid_linearize(buf, len, sid);
- s = ads_binary_string(buf, len);
- free(buf);
- return s;
+ ret = ads_search(ads, (void *) &res, exp, attrs);
+
+ if (!ADS_ERR_OK(ret)) return ret;
+
+ msg = ads_first_entry(ads, res);
+ ads_pull_sid(ads, msg, attrs[1], &sid);
+ if (!(ctx = talloc_init_named("sec_io_desc"))) {
+ ret = ADS_ERROR(LDAP_NO_MEMORY);
+ goto ads_set_sd_error;
+ }
+
+ if (!ads_pull_sd(ads, ctx, msg, attrs[0], &psd)) {
+ ret = ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ goto ads_set_sd_error;
+ }
+
+ status = sec_desc_add_sid(ctx, &psd, &sid, SEC_RIGHTS_FULL_CTRL, &sd_size);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ ret = ADS_ERROR_NT(status);
+ goto ads_set_sd_error;
+ }
+
+ prs_init(&ps_wire, sd_size, ctx, MARSHALL);
+ if (!sec_io_desc("sd_wire", &psd, &ps_wire, 1)) {
+ ret = ADS_ERROR(LDAP_NO_MEMORY);
+ goto ads_set_sd_error;
+ }
+
+#if 0
+ file_save("/tmp/sec_desc.new", ps_wire.data_p, sd_size);
+#endif
+ if (!(mods = ads_init_mods(ctx))) return ADS_ERROR(LDAP_NO_MEMORY);
+
+ bval.bv_len = sd_size;
+ bval.bv_val = prs_data_p(&ps_wire);
+ ads_mod_ber(ctx, &mods, attrs[0], &bval);
+ ret = ads_gen_mod(ads, dn, mods);
+
+ads_set_sd_error:
+ ads_msgfree(ads, res);
+ prs_mem_free(&ps_wire);
+ talloc_destroy(ctx);
+ return ret;
}
-/*
- pull the first entry from a ADS result
-*/
+/**
+ * pull the first entry from a ADS result
+ * @param ads connection to ads server
+ * @param res Results of search
+ * @return first entry from result
+ **/
void *ads_first_entry(ADS_STRUCT *ads, void *res)
{
return (void *)ldap_first_entry(ads->ld, (LDAPMessage *)res);
}
-/*
- pull the next entry from a ADS result
-*/
+/**
+ * pull the next entry from a ADS result
+ * @param ads connection to ads server
+ * @param res Results of search
+ * @return next entry from result
+ **/
void *ads_next_entry(ADS_STRUCT *ads, void *res)
{
return (void *)ldap_next_entry(ads->ld, (LDAPMessage *)res);
}
-/*
- pull a single string from a ADS result
-*/
+/**
+ * pull a single string from a ADS result
+ * @param ads connection to ads server
+ * @param mem_ctx TALLOC_CTX to use for allocating result string
+ * @param msg Results of search
+ * @param field Attribute to retrieve
+ * @return Result string in talloc context
+ **/
char *ads_pull_string(ADS_STRUCT *ads,
TALLOC_CTX *mem_ctx, void *msg, const char *field)
{
char **values;
char *ret = NULL;
+ char *ux_string;
+ int rc;
values = ldap_get_values(ads->ld, msg, field);
if (!values) return NULL;
if (values[0]) {
- ret = talloc_strdup(mem_ctx, values[0]);
+ rc = pull_utf8_talloc(mem_ctx, &ux_string,
+ values[0]);
+ if (rc != -1)
+ ret = ux_string;
+
}
ldap_value_free(values);
return ret;
}
-/*
- pull a single uint32 from a ADS result
+/**
+ * pull an array of strings from a ADS result
+ * @param ads connection to ads server
+ * @param mem_ctx TALLOC_CTX to use for allocating result string
+ * @param msg Results of search
+ * @param field Attribute to retrieve
+ * @return Result strings in talloc context
+ **/
+char **ads_pull_strings(ADS_STRUCT *ads,
+ TALLOC_CTX *mem_ctx, void *msg, const char *field)
+{
+ char **values;
+ char **ret = NULL;
+ int i, n;
+
+ values = ldap_get_values(ads->ld, msg, field);
+ if (!values) return NULL;
+
+ for (i=0;values[i];i++) /* noop */ ;
+ n = i;
+
+ ret = talloc(mem_ctx, sizeof(char *) * (n+1));
+
+ for (i=0;i<n;i++) {
+ if (pull_utf8_talloc(mem_ctx, &ret[i], values[i]) == -1) {
+ return NULL;
+ }
+ }
+ ret[i] = NULL;
+
+ ldap_value_free(values);
+ return ret;
+}
+
+
+/**
+ * pull a single uint32 from a ADS result
+ * @param ads connection to ads server
+ * @param msg Results of search
+ * @param field Attribute to retrieve
+ * @param v Pointer to int to store result
+ * @return boolean inidicating success
*/
BOOL ads_pull_uint32(ADS_STRUCT *ads,
void *msg, const char *field, uint32 *v)
return True;
}
-/*
- pull a single DOM_SID from a ADS result
+/**
+ * pull a single DOM_SID from a ADS result
+ * @param ads connection to ads server
+ * @param msg Results of search
+ * @param field Attribute to retrieve
+ * @param sid Pointer to sid to store result
+ * @return boolean inidicating success
*/
BOOL ads_pull_sid(ADS_STRUCT *ads,
void *msg, const char *field, DOM_SID *sid)
return ret;
}
-/*
- pull an array of DOM_SIDs from a ADS result
- return the count of SIDs pulled
-*/
+/**
+ * pull an array of DOM_SIDs from a ADS result
+ * @param ads connection to ads server
+ * @param mem_ctx TALLOC_CTX for allocating sid array
+ * @param msg Results of search
+ * @param field Attribute to retrieve
+ * @param sids pointer to sid array to allocate
+ * @return the count of SIDs pulled
+ **/
int ads_pull_sids(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx,
void *msg, const char *field, DOM_SID **sids)
{
return count;
}
+/**
+ * pull a SEC_DESC from a ADS result
+ * @param ads connection to ads server
+ * @param mem_ctx TALLOC_CTX for allocating sid array
+ * @param msg Results of search
+ * @param field Attribute to retrieve
+ * @param sd Pointer to *SEC_DESC to store result (talloc()ed)
+ * @return boolean inidicating success
+*/
+BOOL ads_pull_sd(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx,
+ void *msg, const char *field, SEC_DESC **sd)
+{
+ struct berval **values;
+ prs_struct ps;
+ BOOL ret = False;
+
+ values = ldap_get_values_len(ads->ld, msg, field);
+
+ if (!values) return False;
+
+ if (values[0]) {
+ prs_init(&ps, values[0]->bv_len, mem_ctx, UNMARSHALL);
+ prs_append_data(&ps, values[0]->bv_val, values[0]->bv_len);
+ ps.data_offset = 0;
+
+ ret = sec_io_desc("sd", sd, &ps, 1);
+ }
+
+ ldap_value_free_len(values);
+ return ret;
+}
+
+/*
+ * in order to support usernames longer than 21 characters we need to
+ * use both the sAMAccountName and the userPrincipalName attributes
+ * It seems that not all users have the userPrincipalName attribute set
+ *
+ * @param ads connection to ads server
+ * @param mem_ctx TALLOC_CTX for allocating sid array
+ * @param msg Results of search
+ * @return the username
+ */
+char *ads_pull_username(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx, void *msg)
+{
+ char *ret, *p;
+
+ ret = ads_pull_string(ads, mem_ctx, msg, "userPrincipalName");
+ if (ret && (p = strchr(ret, '@'))) {
+ *p = 0;
+ return ret;
+ }
+ return ads_pull_string(ads, mem_ctx, msg, "sAMAccountName");
+}
+
-/* find the update serial number - this is the core of the ldap cache */
-BOOL ads_USN(ADS_STRUCT *ads, uint32 *usn)
+/**
+ * find the update serial number - this is the core of the ldap cache
+ * @param ads connection to ads server
+ * @param ads connection to ADS server
+ * @param usn Pointer to retrieved update serial number
+ * @return status of search
+ **/
+ADS_STATUS ads_USN(ADS_STRUCT *ads, uint32 *usn)
{
const char *attrs[] = {"highestCommittedUSN", NULL};
- int rc;
+ ADS_STATUS status;
void *res;
- BOOL ret;
- rc = ads_search_retry(ads, "", LDAP_SCOPE_BASE, "(objectclass=*)", attrs, &res);
- if (rc || ads_count_replies(ads, res) != 1) return False;
- ret = ads_pull_uint32(ads, res, "highestCommittedUSN", usn);
+ status = ads_do_search(ads, "", LDAP_SCOPE_BASE, "(objectclass=*)", attrs, &res);
+ if (!ADS_ERR_OK(status)) return status;
+
+ if (ads_count_replies(ads, res) != 1) {
+ return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
+ }
+
+ ads_pull_uint32(ads, res, "highestCommittedUSN", usn);
ads_msgfree(ads, res);
- return ret;
+ return ADS_SUCCESS;
+}
+
+/* parse a ADS timestring - typical string is
+ '20020917091222.0Z0' which means 09:12.22 17th September
+ 2002, timezone 0 */
+static time_t ads_parse_time(const char *str)
+{
+ struct tm tm;
+
+ ZERO_STRUCT(tm);
+
+ if (sscanf(str, "%4d%2d%2d%2d%2d%2d",
+ &tm.tm_year, &tm.tm_mon, &tm.tm_mday,
+ &tm.tm_hour, &tm.tm_min, &tm.tm_sec) != 6) {
+ return 0;
+ }
+ tm.tm_year -= 1900;
+ tm.tm_mon -= 1;
+
+ return timegm(&tm);
+}
+
+
+/**
+ * Find the servers name and realm - this can be done before authentication
+ * The ldapServiceName field on w2k looks like this:
+ * vnet3.home.samba.org:win2000-vnet3$@VNET3.HOME.SAMBA.ORG
+ * @param ads connection to ads server
+ * @return status of search
+ **/
+ADS_STATUS ads_server_info(ADS_STRUCT *ads)
+{
+ const char *attrs[] = {"ldapServiceName", "currentTime", NULL};
+ ADS_STATUS status;
+ void *res;
+ char *value;
+ char *p;
+ char *timestr;
+ TALLOC_CTX *ctx;
+
+ if (!(ctx = talloc_init())) {
+ return ADS_ERROR(LDAP_NO_MEMORY);
+ }
+
+ status = ads_do_search(ads, "", LDAP_SCOPE_BASE, "(objectclass=*)", attrs, &res);
+ if (!ADS_ERR_OK(status)) return status;
+
+ value = ads_pull_string(ads, ctx, res, "ldapServiceName");
+ if (!value) {
+ return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
+ }
+
+ timestr = ads_pull_string(ads, ctx, res, "currentTime");
+ if (!timestr) {
+ return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
+ }
+
+ ldap_msgfree(res);
+
+ p = strchr(value, ':');
+ if (!p) {
+ talloc_destroy(ctx);
+ DEBUG(1, ("ads_server_info: returned ldap server name did not contain a ':' so was deemed invalid\n"));
+ return ADS_ERROR(LDAP_DECODING_ERROR);
+ }
+
+ SAFE_FREE(ads->config.ldap_server_name);
+
+ ads->config.ldap_server_name = strdup(p+1);
+ p = strchr(ads->config.ldap_server_name, '$');
+ if (!p || p[1] != '@') {
+ talloc_destroy(ctx);
+ SAFE_FREE(ads->config.ldap_server_name);
+ DEBUG(1, ("ads_server_info: returned ldap server name did not contain '$@' so was deemed invalid\n"));
+ return ADS_ERROR(LDAP_DECODING_ERROR);
+ }
+
+ *p = 0;
+
+ SAFE_FREE(ads->config.realm);
+ SAFE_FREE(ads->config.bind_path);
+
+ ads->config.realm = strdup(p+2);
+ ads->config.bind_path = ads_build_dn(ads->config.realm);
+
+ DEBUG(3,("got ldap server name %s@%s, using bind path: %s\n",
+ ads->config.ldap_server_name, ads->config.realm,
+ ads->config.bind_path));
+
+ ads->config.current_time = ads_parse_time(timestr);
+
+ if (ads->config.current_time != 0) {
+ ads->auth.time_offset = ads->config.current_time - time(NULL);
+ DEBUG(4,("time offset is %d seconds\n", ads->auth.time_offset));
+ }
+
+ talloc_destroy(ctx);
+
+ return ADS_SUCCESS;
+}
+
+
+/**
+ * find the list of trusted domains
+ * @param ads connection to ads server
+ * @param mem_ctx TALLOC_CTX for allocating results
+ * @param num_trusts pointer to number of trusts
+ * @param names pointer to trusted domain name list
+ * @param sids pointer to list of sids of trusted domains
+ * @return the count of SIDs pulled
+ **/
+ADS_STATUS ads_trusted_domains(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx,
+ int *num_trusts,
+ char ***names,
+ char ***alt_names,
+ DOM_SID **sids)
+{
+ const char *attrs[] = {"name", "flatname", "securityIdentifier",
+ "trustDirection", NULL};
+ ADS_STATUS status;
+ void *res, *msg;
+ int count, i;
+
+ *num_trusts = 0;
+
+ status = ads_search(ads, &res, "(objectcategory=trustedDomain)", attrs);
+ if (!ADS_ERR_OK(status)) return status;
+
+ count = ads_count_replies(ads, res);
+ if (count == 0) {
+ ads_msgfree(ads, res);
+ return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
+ }
+
+ (*names) = talloc(mem_ctx, sizeof(char *) * count);
+ (*alt_names) = talloc(mem_ctx, sizeof(char *) * count);
+ (*sids) = talloc(mem_ctx, sizeof(DOM_SID) * count);
+ if (! *names || ! *sids) return ADS_ERROR(LDAP_NO_MEMORY);
+
+ for (i=0, msg = ads_first_entry(ads, res); msg; msg = ads_next_entry(ads, msg)) {
+ uint32 direction;
+
+ /* direction is a 2 bit bitfield, 1 means they trust us
+ but we don't trust them, so we should not list them
+ as users from that domain can't login */
+ if (ads_pull_uint32(ads, msg, "trustDirection", &direction) &&
+ direction == 1) {
+ continue;
+ }
+
+ (*names)[i] = ads_pull_string(ads, mem_ctx, msg, "name");
+ (*alt_names)[i] = ads_pull_string(ads, mem_ctx, msg, "flatname");
+
+ if ((*alt_names)[i] && (*alt_names)[i][0]) {
+ /* we prefer the flatname as the primary name
+ for consistency with RPC */
+ char *name = (*alt_names)[i];
+ (*alt_names)[i] = (*names)[i];
+ (*names)[i] = name;
+ }
+ if (ads_pull_sid(ads, msg, "securityIdentifier", &(*sids)[i])) {
+ i++;
+ }
+ }
+
+ ads_msgfree(ads, res);
+
+ *num_trusts = i;
+
+ return ADS_SUCCESS;
+}
+
+/**
+ * find the domain sid for our domain
+ * @param ads connection to ads server
+ * @param sid Pointer to domain sid
+ * @return status of search
+ **/
+ADS_STATUS ads_domain_sid(ADS_STRUCT *ads, DOM_SID *sid)
+{
+ const char *attrs[] = {"objectSid", NULL};
+ void *res;
+ ADS_STATUS rc;
+
+ rc = ads_do_search(ads, ads->config.bind_path, LDAP_SCOPE_BASE, "(objectclass=*)",
+ attrs, &res);
+ if (!ADS_ERR_OK(rc)) return rc;
+ if (!ads_pull_sid(ads, res, "objectSid", sid)) {
+ return ADS_ERROR_SYSTEM(ENOENT);
+ }
+ ads_msgfree(ads, res);
+
+ return ADS_SUCCESS;
}
+/* this is rather complex - we need to find the allternate (netbios) name
+ for the domain, but there isn't a simple query to do this. Instead
+ we look for the principle names on the DCs account and find one that has
+ the right form, then extract the netbios name of the domain from that
+*/
+ADS_STATUS ads_workgroup_name(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx, char **workgroup)
+{
+ char *exp;
+ ADS_STATUS rc;
+ char **principles;
+ char *prefix;
+ int prefix_length;
+ int i;
+ void *res;
+ const char *attrs[] = {"servicePrincipalName", NULL};
+
+ (*workgroup) = NULL;
+ asprintf(&exp, "(&(objectclass=computer)(dnshostname=%s.%s))",
+ ads->config.ldap_server_name, ads->config.realm);
+ rc = ads_search(ads, &res, exp, attrs);
+ free(exp);
+
+ if (!ADS_ERR_OK(rc)) {
+ return rc;
+ }
+
+ principles = ads_pull_strings(ads, mem_ctx, res, "servicePrincipalName");
+
+ ads_msgfree(ads, res);
+
+ if (!principles) {
+ return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
+ }
+
+ asprintf(&prefix, "HOST/%s.%s/",
+ ads->config.ldap_server_name,
+ ads->config.realm);
+
+ prefix_length = strlen(prefix);
+
+ for (i=0;principles[i]; i++) {
+ if (strncasecmp(principles[i], prefix, prefix_length) == 0 &&
+ strcasecmp(ads->config.realm, principles[i]+prefix_length) != 0 &&
+ !strchr(principles[i]+prefix_length, '.')) {
+ /* found an alternate (short) name for the domain. */
+ DEBUG(3,("Found alternate name '%s' for realm '%s'\n",
+ principles[i]+prefix_length,
+ ads->config.realm));
+ (*workgroup) = talloc_strdup(mem_ctx, principles[i]+prefix_length);
+ break;
+ }
+ }
+ free(prefix);
+
+ if (!*workgroup) {
+ return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
+ }
+
+ return ADS_SUCCESS;
+}
#endif
git.samba.org / samba.git / blobdiff