Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 338 insertions, 0 deletions

diff --git a/source3/passdb/pdb_ldap_util.c b/source3/passdb/pdb_ldap_util.c
new file mode 100644
index 0000000..0c1708d
--- /dev/null
+++ b/source3/passdb/pdb_ldap_util.c
@@ -0,0 +1,338 @@
+/*
+   Unix SMB/CIFS Implementation.
+   LDAP protocol helper functions for SAMBA
+   Copyright (C) Jean François Micouleau	1998
+   Copyright (C) Gerald Carter			2001-2003
+   Copyright (C) Shahms King			2001
+   Copyright (C) Andrew Bartlett		2002-2003
+   Copyright (C) Stefan (metze) Metzmacher	2002-2003
+
+   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 3 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, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "includes.h"
+#include "smbldap.h"
+#include "passdb.h"
+#include "passdb/pdb_ldap_util.h"
+#include "passdb/pdb_ldap_schema.h"
+#include "libcli/security/dom_sid.h"
+
+/**********************************************************************
+ Add the account-policies below the sambaDomain object to LDAP,
+*********************************************************************/
+
+static NTSTATUS add_new_domain_account_policies(struct smbldap_state *ldap_state,
+						const char *domain_name)
+{
+	NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
+	int i, rc;
+	uint32_t policy_default;
+	const char *policy_attr = NULL;
+	char *dn = NULL;
+	LDAPMod **mods = NULL;
+	char *escape_domain_name;
+
+	DEBUG(3,("add_new_domain_account_policies: Adding new account policies for domain\n"));
+
+	escape_domain_name = escape_rdn_val_string_alloc(domain_name);
+	if (!escape_domain_name) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (asprintf(&dn, "%s=%s,%s",
+		get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
+		escape_domain_name, lp_ldap_suffix()) < 0) {
+		SAFE_FREE(escape_domain_name);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	SAFE_FREE(escape_domain_name);
+
+	for (i=1; decode_account_policy_name(i) != NULL; i++) {
+		char *val = NULL;
+
+		policy_attr = get_account_policy_attr(i);
+		if (!policy_attr) {
+			DEBUG(0,("add_new_domain_account_policies: ops. no policy!\n"));
+			continue;
+		}
+
+		if (!account_policy_get_default(i, &policy_default)) {
+			DEBUG(0,("add_new_domain_account_policies: failed to get default account policy\n"));
+			SAFE_FREE(dn);
+			return ntstatus;
+		}
+
+		DEBUG(10,("add_new_domain_account_policies: adding \"%s\" with value: %d\n", policy_attr, policy_default));
+
+		if (asprintf(&val, "%d", policy_default) < 0) {
+			SAFE_FREE(dn);
+			return NT_STATUS_NO_MEMORY;
+		}
+
+		smbldap_set_mod( &mods, LDAP_MOD_REPLACE, policy_attr, val);
+
+		rc = smbldap_modify(ldap_state, dn, mods);
+
+		SAFE_FREE(val);
+
+		if (rc!=LDAP_SUCCESS) {
+			char *ld_error = NULL;
+			ldap_get_option(smbldap_get_ldap(ldap_state),
+					LDAP_OPT_ERROR_STRING, &ld_error);
+			DEBUG(1,("add_new_domain_account_policies: failed to add account policies to dn= %s with: %s\n\t%s\n",
+				dn, ldap_err2string(rc),
+				ld_error ? ld_error : "unknown"));
+			SAFE_FREE(ld_error);
+			SAFE_FREE(dn);
+			ldap_mods_free(mods, True);
+			return ntstatus;
+		}
+	}
+
+	SAFE_FREE(dn);
+	ldap_mods_free(mods, True);
+
+	return NT_STATUS_OK;
+}
+
+/**********************************************************************
+ Add the sambaDomain to LDAP, so we don't have to search for this stuff
+ again.  This is a once-add operation for now.
+
+ TODO:  Add other attributes, and allow modification.
+*********************************************************************/
+
+static NTSTATUS add_new_domain_info(struct smbldap_state *ldap_state,
+                                    const char *domain_name)
+{
+	struct dom_sid_buf sid_string;
+	fstring algorithmic_rid_base_string;
+	char *filter = NULL;
+	char *dn = NULL;
+	LDAPMod **mods = NULL;
+	int rc;
+	LDAPMessage *result = NULL;
+	int num_result;
+	const char **attr_list;
+	char *escape_domain_name;
+
+	/* escape for filter */
+	escape_domain_name = escape_ldap_string(talloc_tos(), domain_name);
+	if (!escape_domain_name) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (asprintf(&filter, "(&(%s=%s)(objectclass=%s))",
+		get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
+			escape_domain_name, LDAP_OBJ_DOMINFO) < 0) {
+		TALLOC_FREE(escape_domain_name);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	TALLOC_FREE(escape_domain_name);
+
+	attr_list = get_attr_list(NULL, dominfo_attr_list );
+	rc = smbldap_search_suffix(ldap_state, filter, attr_list, &result);
+	TALLOC_FREE( attr_list );
+	SAFE_FREE(filter);
+
+	if (rc != LDAP_SUCCESS) {
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	num_result = ldap_count_entries(smbldap_get_ldap(ldap_state), result);
+
+	if (num_result > 1) {
+		DEBUG (0, ("add_new_domain_info: More than domain with that name exists: bailing "
+			   "out!\n"));
+		ldap_msgfree(result);
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	/* Check if we need to add an entry */
+	DEBUG(3,("add_new_domain_info: Adding new domain\n"));
+
+	/* this time escape for DN */
+	escape_domain_name = escape_rdn_val_string_alloc(domain_name);
+	if (!escape_domain_name) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (asprintf(&dn, "%s=%s,%s",
+		     get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
+		     escape_domain_name, lp_ldap_suffix()) < 0) {
+		SAFE_FREE(escape_domain_name);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	SAFE_FREE(escape_domain_name);
+
+	/* Free original search */
+	ldap_msgfree(result);
+
+	/* make the changes - the entry *must* not already have samba
+	 * attributes */
+
+	smbldap_set_mod(&mods, LDAP_MOD_ADD,
+			get_attr_key2string(dominfo_attr_list,
+					    LDAP_ATTR_DOMAIN),
+			domain_name);
+
+	/* If we don't have an entry, then ask secrets.tdb for what it thinks.
+	   It may choose to make it up */
+
+	smbldap_set_mod(&mods, LDAP_MOD_ADD,
+			get_attr_key2string(dominfo_attr_list,
+					    LDAP_ATTR_DOM_SID),
+			dom_sid_str_buf(get_global_sam_sid(), &sid_string));
+
+	slprintf(algorithmic_rid_base_string,
+		 sizeof(algorithmic_rid_base_string) - 1, "%i",
+		 algorithmic_rid_base());
+	smbldap_set_mod(&mods, LDAP_MOD_ADD,
+			get_attr_key2string(dominfo_attr_list,
+					    LDAP_ATTR_ALGORITHMIC_RID_BASE),
+			algorithmic_rid_base_string);
+	smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_DOMINFO);
+
+	/* add the sambaNextUserRid attributes. */
+
+	{
+		uint32_t rid = BASE_RID;
+		fstring rid_str;
+
+		fstr_sprintf( rid_str, "%i", rid );
+		DEBUG(10,("add_new_domain_info: setting next available user rid [%s]\n", rid_str));
+		smbldap_set_mod(&mods, LDAP_MOD_ADD,
+			get_attr_key2string(dominfo_attr_list,
+					    LDAP_ATTR_NEXT_USERRID),
+			rid_str);
+        }
+
+
+	rc = smbldap_add(ldap_state, dn, mods);
+
+	if (rc!=LDAP_SUCCESS) {
+		char *ld_error = NULL;
+		ldap_get_option(smbldap_get_ldap(ldap_state),
+				LDAP_OPT_ERROR_STRING, &ld_error);
+		DEBUG(1,("add_new_domain_info: failed to add domain dn= %s with: %s\n\t%s\n",
+			 dn, ldap_err2string(rc),
+			 ld_error?ld_error:"unknown"));
+		SAFE_FREE(ld_error);
+		SAFE_FREE(dn);
+		ldap_mods_free(mods, True);
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	DEBUG(2,("add_new_domain_info: added: domain = %s in the LDAP database\n", domain_name));
+	ldap_mods_free(mods, True);
+	SAFE_FREE(dn);
+	return NT_STATUS_OK;
+}
+
+/**********************************************************************
+Search for the domain info entry
+*********************************************************************/
+
+NTSTATUS smbldap_search_domain_info(struct smbldap_state *ldap_state,
+                                    LDAPMessage ** result, const char *domain_name,
+                                    bool try_add)
+{
+	NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
+	char *filter = NULL;
+	int rc;
+	const char **attr_list;
+	int count;
+	char *escape_domain_name;
+
+	escape_domain_name = escape_ldap_string(talloc_tos(), domain_name);
+	if (!escape_domain_name) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
+		LDAP_OBJ_DOMINFO,
+		get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
+		escape_domain_name) < 0) {
+		TALLOC_FREE(escape_domain_name);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	TALLOC_FREE(escape_domain_name);
+
+	DEBUG(2, ("smbldap_search_domain_info: Searching for:[%s]\n", filter));
+
+	attr_list = get_attr_list( NULL, dominfo_attr_list );
+	rc = smbldap_search_suffix(ldap_state, filter, attr_list , result);
+	TALLOC_FREE( attr_list );
+
+	if (rc != LDAP_SUCCESS) {
+		DEBUG(2,("smbldap_search_domain_info: Problem during LDAPsearch: %s\n", ldap_err2string (rc)));
+		DEBUG(2,("smbldap_search_domain_info: Query was: %s, %s\n", lp_ldap_suffix(), filter));
+		goto failed;
+	}
+
+	SAFE_FREE(filter);
+
+	count = ldap_count_entries(smbldap_get_ldap(ldap_state), *result);
+
+	if (count == 1) {
+		return NT_STATUS_OK;
+	}
+
+	ldap_msgfree(*result);
+	*result = NULL;
+
+	if (count < 1) {
+
+		DEBUG(3, ("smbldap_search_domain_info: Got no domain info entries for domain\n"));
+
+		if (!try_add)
+			goto failed;
+
+		status = add_new_domain_info(ldap_state, domain_name);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0, ("smbldap_search_domain_info: Adding domain info for %s failed with %s\n",
+				domain_name, nt_errstr(status)));
+			goto failed;
+		}
+
+		status = add_new_domain_account_policies(ldap_state, domain_name);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0, ("smbldap_search_domain_info: Adding domain account policies for %s failed with %s\n",
+				domain_name, nt_errstr(status)));
+			goto failed;
+		}
+
+		return smbldap_search_domain_info(ldap_state, result, domain_name, False);
+
+	}
+
+	if (count > 1 ) {
+
+		DEBUG(0, ("smbldap_search_domain_info: Got too many (%d) domain info entries for domain %s\n",
+			  count, domain_name));
+		goto failed;
+	}
+
+failed:
+	return status;
+}