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-rw-r--r--source4/dsdb/common/flag_mapping.c143
-rw-r--r--source4/dsdb/common/flags.h137
-rw-r--r--source4/dsdb/common/sidmap.c612
-rw-r--r--source4/dsdb/common/util.c1994
4 files changed, 2886 insertions, 0 deletions
diff --git a/source4/dsdb/common/flag_mapping.c b/source4/dsdb/common/flag_mapping.c
new file mode 100644
index 0000000000..4a2a079e45
--- /dev/null
+++ b/source4/dsdb/common/flag_mapping.c
@@ -0,0 +1,143 @@
+/*
+ Unix SMB/CIFS implementation.
+ helper mapping functions for the SAMDB server
+
+ Copyright (C) Stefan (metze) Metzmacher 2002
+ Copyright (C) Andrew Tridgell 2004
+
+ 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 "librpc/gen_ndr/samr.h"
+#include "dsdb/common/flags.h"
+
+/*
+translated the ACB_CTRL Flags to UserFlags (userAccountControl)
+*/
+/* mapping between ADS userAccountControl and SAMR acct_flags */
+static const struct {
+ uint32_t uf;
+ uint32_t acb;
+} acct_flags_map[] = {
+ { UF_ACCOUNTDISABLE, ACB_DISABLED },
+ { UF_HOMEDIR_REQUIRED, ACB_HOMDIRREQ },
+ { UF_PASSWD_NOTREQD, ACB_PWNOTREQ },
+ { UF_TEMP_DUPLICATE_ACCOUNT, ACB_TEMPDUP },
+ { UF_NORMAL_ACCOUNT, ACB_NORMAL },
+ { UF_MNS_LOGON_ACCOUNT, ACB_MNS },
+ { UF_INTERDOMAIN_TRUST_ACCOUNT, ACB_DOMTRUST },
+ { UF_WORKSTATION_TRUST_ACCOUNT, ACB_WSTRUST },
+ { UF_SERVER_TRUST_ACCOUNT, ACB_SVRTRUST },
+ { UF_DONT_EXPIRE_PASSWD, ACB_PWNOEXP },
+ { UF_LOCKOUT, ACB_AUTOLOCK },
+ { UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED, ACB_ENC_TXT_PWD_ALLOWED },
+ { UF_SMARTCARD_REQUIRED, ACB_SMARTCARD_REQUIRED },
+ { UF_TRUSTED_FOR_DELEGATION, ACB_TRUSTED_FOR_DELEGATION },
+ { UF_NOT_DELEGATED, ACB_NOT_DELEGATED },
+ { UF_USE_DES_KEY_ONLY, ACB_USE_DES_KEY_ONLY},
+ { UF_DONT_REQUIRE_PREAUTH, ACB_DONT_REQUIRE_PREAUTH },
+ { UF_PASSWORD_EXPIRED, ACB_PW_EXPIRED },
+ { UF_NO_AUTH_DATA_REQUIRED, ACB_NO_AUTH_DATA_REQD }
+};
+
+uint32_t samdb_acb2uf(uint32_t acb)
+{
+ uint32_t i, ret = 0;
+ for (i=0;i<ARRAY_SIZE(acct_flags_map);i++) {
+ if (acct_flags_map[i].acb & acb) {
+ ret |= acct_flags_map[i].uf;
+ }
+ }
+ return ret;
+}
+
+/*
+translated the UserFlags (userAccountControl) to ACB_CTRL Flags
+*/
+uint32_t samdb_uf2acb(uint32_t uf)
+{
+ uint32_t i;
+ uint32_t ret = 0;
+ for (i=0;i<ARRAY_SIZE(acct_flags_map);i++) {
+ if (acct_flags_map[i].uf & uf) {
+ ret |= acct_flags_map[i].acb;
+ }
+ }
+ return ret;
+}
+
+/*
+get the accountType from the UserFlags
+*/
+uint32_t samdb_uf2atype(uint32_t uf)
+{
+ uint32_t atype = 0x00000000;
+
+ if (uf & UF_NORMAL_ACCOUNT) atype = ATYPE_NORMAL_ACCOUNT;
+ else if (uf & UF_TEMP_DUPLICATE_ACCOUNT) atype = ATYPE_NORMAL_ACCOUNT;
+ else if (uf & UF_SERVER_TRUST_ACCOUNT) atype = ATYPE_WORKSTATION_TRUST;
+ else if (uf & UF_WORKSTATION_TRUST_ACCOUNT) atype = ATYPE_WORKSTATION_TRUST;
+ else if (uf & UF_INTERDOMAIN_TRUST_ACCOUNT) atype = ATYPE_INTERDOMAIN_TRUST;
+
+ return atype;
+}
+
+/*
+get the accountType from the groupType
+*/
+uint32_t samdb_gtype2atype(uint32_t gtype)
+{
+ uint32_t atype = 0x00000000;
+
+ switch(gtype) {
+ case GTYPE_SECURITY_BUILTIN_LOCAL_GROUP:
+ atype = ATYPE_SECURITY_LOCAL_GROUP;
+ break;
+ case GTYPE_SECURITY_DOMAIN_LOCAL_GROUP:
+ atype = ATYPE_SECURITY_LOCAL_GROUP;
+ break;
+ case GTYPE_SECURITY_GLOBAL_GROUP:
+ atype = ATYPE_SECURITY_GLOBAL_GROUP;
+ break;
+
+ case GTYPE_DISTRIBUTION_GLOBAL_GROUP:
+ atype = ATYPE_DISTRIBUTION_GLOBAL_GROUP;
+ break;
+ case GTYPE_DISTRIBUTION_DOMAIN_LOCAL_GROUP:
+ atype = ATYPE_DISTRIBUTION_UNIVERSAL_GROUP;
+ break;
+ case GTYPE_DISTRIBUTION_UNIVERSAL_GROUP:
+ atype = ATYPE_DISTRIBUTION_LOCAL_GROUP;
+ break;
+ }
+
+ return atype;
+}
+
+/* turn a sAMAccountType into a SID_NAME_USE */
+enum lsa_SidType samdb_atype_map(uint32_t atype)
+{
+ switch (atype & 0xF0000000) {
+ case ATYPE_GLOBAL_GROUP:
+ return SID_NAME_DOM_GRP;
+ case ATYPE_SECURITY_LOCAL_GROUP:
+ return SID_NAME_ALIAS;
+ case ATYPE_ACCOUNT:
+ return SID_NAME_USER;
+ default:
+ DEBUG(1,("hmm, need to map account type 0x%x\n", atype));
+ }
+ return SID_NAME_UNKNOWN;
+}
diff --git a/source4/dsdb/common/flags.h b/source4/dsdb/common/flags.h
new file mode 100644
index 0000000000..dd8081732c
--- /dev/null
+++ b/source4/dsdb/common/flags.h
@@ -0,0 +1,137 @@
+/*
+ Unix SMB/CIFS implementation.
+ User/Group specific flags
+
+ Copyright (C) Andrew Tridgell 2001-2003
+
+ 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/>.
+*/
+
+/* UserFlags for userAccountControl */
+#define UF_SCRIPT 0x00000001 /* NT or Lan Manager Login script must be executed */
+#define UF_ACCOUNTDISABLE 0x00000002
+#define UF_00000004 0x00000004
+#define UF_HOMEDIR_REQUIRED 0x00000008
+
+#define UF_LOCKOUT 0x00000010
+#define UF_PASSWD_NOTREQD 0x00000020
+#define UF_PASSWD_CANT_CHANGE 0x00000040
+#define UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED 0x00000080
+
+#define UF_TEMP_DUPLICATE_ACCOUNT 0x00000100 /* Local user account in usrmgr */
+#define UF_NORMAL_ACCOUNT 0x00000200
+#define UF_00000400 0x00000400
+#define UF_INTERDOMAIN_TRUST_ACCOUNT 0x00000800
+
+#define UF_WORKSTATION_TRUST_ACCOUNT 0x00001000
+#define UF_SERVER_TRUST_ACCOUNT 0x00002000
+#define UF_00004000 0x00004000
+#define UF_00008000 0x00008000
+
+#define UF_DONT_EXPIRE_PASSWD 0x00010000
+#define UF_MNS_LOGON_ACCOUNT 0x00020000
+#define UF_SMARTCARD_REQUIRED 0x00040000
+#define UF_TRUSTED_FOR_DELEGATION 0x00080000
+
+#define UF_NOT_DELEGATED 0x00100000
+#define UF_USE_DES_KEY_ONLY 0x00200000
+#define UF_DONT_REQUIRE_PREAUTH 0x00400000
+#define UF_PASSWORD_EXPIRED 0x00800000
+
+#define UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION 0x01000000
+#define UF_NO_AUTH_DATA_REQUIRED 0x02000000
+
+/* sAMAccountType */
+#define ATYPE_NORMAL_ACCOUNT 0x30000000 /* 805306368 */
+#define ATYPE_WORKSTATION_TRUST 0x30000001 /* 805306369 */
+#define ATYPE_INTERDOMAIN_TRUST 0x30000002 /* 805306370 */
+#define ATYPE_SECURITY_GLOBAL_GROUP 0x10000000 /* 268435456 */
+#define ATYPE_DISTRIBUTION_GLOBAL_GROUP 0x10000001 /* 268435457 */
+#define ATYPE_DISTRIBUTION_UNIVERSAL_GROUP ATYPE_DISTRIBUTION_GLOBAL_GROUP
+#define ATYPE_SECURITY_LOCAL_GROUP 0x20000000 /* 536870912 */
+#define ATYPE_DISTRIBUTION_LOCAL_GROUP 0x20000001 /* 536870913 */
+
+#define ATYPE_ACCOUNT ATYPE_NORMAL_ACCOUNT /* 0x30000000 805306368 */
+#define ATYPE_GLOBAL_GROUP ATYPE_SECURITY_GLOBAL_GROUP /* 0x10000000 268435456 */
+#define ATYPE_LOCAL_GROUP ATYPE_SECURITY_LOCAL_GROUP /* 0x20000000 536870912 */
+
+/* groupType */
+#define GROUP_TYPE_BUILTIN_LOCAL_GROUP 0x00000001
+#define GROUP_TYPE_ACCOUNT_GROUP 0x00000002
+#define GROUP_TYPE_RESOURCE_GROUP 0x00000004
+#define GROUP_TYPE_UNIVERSAL_GROUP 0x00000008
+#define GROUP_TYPE_APP_BASIC_GROUP 0x00000010
+#define GROUP_TYPE_APP_QUERY_GROUP 0x00000020
+#define GROUP_TYPE_SECURITY_ENABLED 0x80000000
+
+#define GTYPE_SECURITY_BUILTIN_LOCAL_GROUP ( \
+ /* 0x80000005 -2147483643 */ \
+ GROUP_TYPE_BUILTIN_LOCAL_GROUP| \
+ GROUP_TYPE_RESOURCE_GROUP| \
+ GROUP_TYPE_SECURITY_ENABLED \
+ )
+#define GTYPE_SECURITY_DOMAIN_LOCAL_GROUP ( \
+ /* 0x80000004 -2147483644 */ \
+ GROUP_TYPE_RESOURCE_GROUP| \
+ GROUP_TYPE_SECURITY_ENABLED \
+ )
+#define GTYPE_SECURITY_GLOBAL_GROUP ( \
+ /* 0x80000002 -2147483646 */ \
+ GROUP_TYPE_ACCOUNT_GROUP| \
+ GROUP_TYPE_SECURITY_ENABLED \
+ )
+#define GTYPE_SECURITY_UNIVERSAL_GROUP ( \
+ /* 0x80000008 -2147483656 */ \
+ GROUP_TYPE_UNIVERSAL_GROUP| \
+ GROUP_TYPE_SECURITY_ENABLED \
+ )
+#define GTYPE_DISTRIBUTION_GLOBAL_GROUP 0x00000002 /* 2 */
+#define GTYPE_DISTRIBUTION_DOMAIN_LOCAL_GROUP 0x00000004 /* 4 */
+#define GTYPE_DISTRIBUTION_UNIVERSAL_GROUP 0x00000008 /* 8 */
+
+#define INSTANCE_TYPE_IS_NC_HEAD 0x00000001
+#define INSTANCE_TYPE_UNINSTANT 0x00000002
+#define INSTANCE_TYPE_WRITE 0x00000004
+#define INSTANCE_TYPE_NC_ABOVE 0x00000008
+#define INSTANCE_TYPE_NC_COMING 0x00000010
+#define INSTANCE_TYPE_NC_GOING 0x00000020
+
+#define SYSTEM_FLAG_CR_NTDS_NC 0x00000001
+#define SYSTEM_FLAG_CR_NTDS_DOMAIN 0x00000002
+#define SYSTEM_FLAG_CR_NTDS_NOT_GC_REPLICATED 0x00000004
+#define SYSTEM_FLAG_SCHEMA_BASE_OBJECT 0x00000010
+#define SYSTEM_FLAG_ATTR_IS_RDN 0x00000020
+#define SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE 0x02000000
+#define SYSTEM_FLAG_DOMAIN_DISALLOW_MOVE 0x04000000
+#define SYSTEM_FLAG_DOMAIN_DISALLOW_RENAME 0x08000000
+#define SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE 0x10000000
+#define SYSTEM_FLAG_CONFIG_ALLOW_MOVE 0x20000000
+#define SYSTEM_FLAG_CONFIG_ALLOW_RENAME 0x40000000
+#define SYSTEM_FLAG_DISALLOW_DELTE 0x80000000
+
+#define SEARCH_FLAG_ATTINDEX 0x0000001
+#define SEARCH_FLAG_PDNTATTINDEX 0x0000002
+#define SEARCH_FLAG_ANR 0x0000004
+#define SEARCH_FLAG_PRESERVEONDELETE 0x0000008
+#define SEARCH_FLAG_COPY 0x0000010
+#define SEARCH_FLAG_TUPLEINDEX 0x0000020
+#define SEARCH_FLAG_SUBTREEATTRINDEX 0x0000040
+#define SEARCH_FLAG_CONFIDENTIAL 0x0000080
+#define SEARCH_FLAG_NEVERVALUEAUDIT 0x0000100
+#define SEARCH_FLAG_RODC_ATTRIBUTE 0x0000200
+
+#define DS_BEHAVIOR_WIN2000 0
+#define DS_BEHAVIOR_WIN2003_INTERIM 1
+#define DS_BEHAVIOR_WIN2003 2
+#define DS_BEHAVIOR_WIN2008 3
diff --git a/source4/dsdb/common/sidmap.c b/source4/dsdb/common/sidmap.c
new file mode 100644
index 0000000000..20bba7a0d9
--- /dev/null
+++ b/source4/dsdb/common/sidmap.c
@@ -0,0 +1,612 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ mapping routines for SID <-> unix uid/gid
+
+ Copyright (C) Andrew Tridgell 2004
+
+ 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 "system/passwd.h"
+#include "dsdb/common/flags.h"
+#include "dsdb/samdb/samdb.h"
+#include "auth/auth.h"
+#include "libcli/ldap/ldap_ndr.h"
+#include "lib/ldb/include/ldb.h"
+#include "util/util_ldb.h"
+#include "libcli/security/security.h"
+#include "param/param.h"
+
+/*
+ these are used for the fallback local uid/gid to sid mapping
+ code.
+*/
+#define SIDMAP_LOCAL_USER_BASE 0x80000000
+#define SIDMAP_LOCAL_GROUP_BASE 0xC0000000
+#define SIDMAP_MAX_LOCAL_UID 0x3fffffff
+#define SIDMAP_MAX_LOCAL_GID 0x3fffffff
+
+/*
+ private context for sid mapping routines
+*/
+struct sidmap_context {
+ struct ldb_context *samctx;
+};
+
+/*
+ open a sidmap context - use talloc_free to close
+*/
+struct sidmap_context *sidmap_open(TALLOC_CTX *mem_ctx, struct event_context *ev_ctx,
+ struct loadparm_context *lp_ctx)
+{
+ struct sidmap_context *sidmap;
+ sidmap = talloc(mem_ctx, struct sidmap_context);
+ if (sidmap == NULL) {
+ return NULL;
+ }
+ sidmap->samctx = samdb_connect(sidmap, ev_ctx, lp_ctx, system_session(sidmap, lp_ctx));
+ if (sidmap->samctx == NULL) {
+ talloc_free(sidmap);
+ return NULL;
+ }
+
+ return sidmap;
+}
+
+
+/*
+ check the sAMAccountType field of a search result to see if
+ the account is a user account
+*/
+static bool is_user_account(struct ldb_message *res)
+{
+ uint_t atype = samdb_result_uint(res, "sAMAccountType", 0);
+ if (atype && (!(atype & ATYPE_ACCOUNT))) {
+ return false;
+ }
+ return true;
+}
+
+/*
+ check the sAMAccountType field of a search result to see if
+ the account is a group account
+*/
+static bool is_group_account(struct ldb_message *res)
+{
+ uint_t atype = samdb_result_uint(res, "sAMAccountType", 0);
+ if (atype && atype == ATYPE_NORMAL_ACCOUNT) {
+ return false;
+ }
+ return true;
+}
+
+
+
+/*
+ return the dom_sid of our primary domain
+*/
+static NTSTATUS sidmap_primary_domain_sid(struct sidmap_context *sidmap,
+ TALLOC_CTX *mem_ctx, struct dom_sid **sid)
+{
+ const char *attrs[] = { "objectSid", NULL };
+ int ret;
+ struct ldb_message **res = NULL;
+
+ ret = gendb_search_dn(sidmap->samctx, mem_ctx, NULL, &res, attrs);
+ if (ret != 1) {
+ talloc_free(res);
+ return NT_STATUS_NO_SUCH_DOMAIN;
+ }
+
+ *sid = samdb_result_dom_sid(mem_ctx, res[0], "objectSid");
+ talloc_free(res);
+ if (*sid == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ return NT_STATUS_OK;
+}
+
+
+/*
+ map a sid to a unix uid
+*/
+NTSTATUS sidmap_sid_to_unixuid(struct sidmap_context *sidmap,
+ const struct dom_sid *sid, uid_t *uid)
+{
+ const char *attrs[] = { "sAMAccountName", "uidNumber",
+ "sAMAccountType", "unixName", NULL };
+ int ret;
+ const char *s;
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_message **res;
+ struct dom_sid *domain_sid;
+ NTSTATUS status;
+
+ tmp_ctx = talloc_new(sidmap);
+
+ ret = gendb_search(sidmap->samctx, tmp_ctx, NULL, &res, attrs,
+ "objectSid=%s",
+ ldap_encode_ndr_dom_sid(tmp_ctx, sid));
+
+ if (ret != 1) {
+ goto allocated_sid;
+ }
+
+ /* make sure its a user, not a group */
+ if (!is_user_account(res[0])) {
+ DEBUG(0,("sid_to_unixuid: sid %s is not an account!\n",
+ dom_sid_string(tmp_ctx, sid)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INVALID_SID;
+ }
+
+ /* first try to get the uid directly */
+ s = samdb_result_string(res[0], "uidNumber", NULL);
+ if (s != NULL) {
+ *uid = strtoul(s, NULL, 0);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ /* next try via the UnixName attribute */
+ s = samdb_result_string(res[0], "unixName", NULL);
+ if (s != NULL) {
+ struct passwd *pwd = getpwnam(s);
+ if (!pwd) {
+ DEBUG(0,("unixName %s for sid %s does not exist as a local user\n", s,
+ dom_sid_string(tmp_ctx, sid)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_SUCH_USER;
+ }
+ *uid = pwd->pw_uid;
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ /* finally try via the sAMAccountName attribute */
+ s = samdb_result_string(res[0], "sAMAccountName", NULL);
+ if (s != NULL) {
+ struct passwd *pwd = getpwnam(s);
+ if (!pwd) {
+ DEBUG(0,("sAMAccountName '%s' for sid %s does not exist as a local user\n",
+ s, dom_sid_string(tmp_ctx, sid)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_SUCH_USER;
+ }
+ *uid = pwd->pw_uid;
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+
+allocated_sid:
+ status = sidmap_primary_domain_sid(sidmap, tmp_ctx, &domain_sid);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_SUCH_DOMAIN;
+ }
+
+ if (dom_sid_in_domain(domain_sid, sid)) {
+ uint32_t rid = sid->sub_auths[sid->num_auths-1];
+ if (rid >= SIDMAP_LOCAL_USER_BASE &&
+ rid < SIDMAP_LOCAL_GROUP_BASE) {
+ *uid = rid - SIDMAP_LOCAL_USER_BASE;
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+ }
+
+
+ DEBUG(0,("sid_to_unixuid: no uidNumber, unixName or sAMAccountName for sid %s\n",
+ dom_sid_string(tmp_ctx, sid)));
+
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NONE_MAPPED;
+}
+
+
+/*
+ see if a sid is a group - very inefficient!
+*/
+bool sidmap_sid_is_group(struct sidmap_context *sidmap, struct dom_sid *sid)
+{
+ const char *attrs[] = { "sAMAccountType", NULL };
+ int ret;
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_message **res;
+ NTSTATUS status;
+ struct dom_sid *domain_sid;
+ bool is_group;
+
+ tmp_ctx = talloc_new(sidmap);
+
+ ret = gendb_search(sidmap->samctx, tmp_ctx, NULL, &res, attrs,
+ "objectSid=%s", ldap_encode_ndr_dom_sid(tmp_ctx, sid));
+ if (ret == 1) {
+ is_group = is_group_account(res[0]);
+ talloc_free(tmp_ctx);
+ return is_group;
+ }
+
+ status = sidmap_primary_domain_sid(sidmap, tmp_ctx, &domain_sid);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return false;
+ }
+
+ if (dom_sid_in_domain(domain_sid, sid)) {
+ uint32_t rid = sid->sub_auths[sid->num_auths-1];
+ if (rid >= SIDMAP_LOCAL_GROUP_BASE) {
+ talloc_free(tmp_ctx);
+ return true;
+ }
+ }
+
+ talloc_free(tmp_ctx);
+ return false;
+}
+
+/*
+ map a sid to a unix gid
+*/
+NTSTATUS sidmap_sid_to_unixgid(struct sidmap_context *sidmap,
+ const struct dom_sid *sid, gid_t *gid)
+{
+ const char *attrs[] = { "sAMAccountName", "gidNumber",
+ "unixName", "sAMAccountType", NULL };
+ int ret;
+ const char *s;
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_message **res;
+ NTSTATUS status;
+ struct dom_sid *domain_sid;
+
+ tmp_ctx = talloc_new(sidmap);
+
+ ret = gendb_search(sidmap->samctx, tmp_ctx, NULL, &res, attrs,
+ "objectSid=%s", ldap_encode_ndr_dom_sid(tmp_ctx, sid));
+ if (ret != 1) {
+ goto allocated_sid;
+ }
+
+ /* make sure its not a user */
+ if (!is_group_account(res[0])) {
+ DEBUG(0,("sid_to_unixgid: sid %s is a ATYPE_NORMAL_ACCOUNT\n",
+ dom_sid_string(tmp_ctx, sid)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INVALID_SID;
+ }
+
+ /* first try to get the gid directly */
+ s = samdb_result_string(res[0], "gidNumber", NULL);
+ if (s != NULL) {
+ *gid = strtoul(s, NULL, 0);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ /* next try via the UnixName attribute */
+ s = samdb_result_string(res[0], "unixName", NULL);
+ if (s != NULL) {
+ struct group *grp = getgrnam(s);
+ if (!grp) {
+ DEBUG(0,("unixName '%s' for sid %s does not exist as a local group\n",
+ s, dom_sid_string(tmp_ctx, sid)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_SUCH_GROUP;
+ }
+ *gid = grp->gr_gid;
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ /* finally try via the sAMAccountName attribute */
+ s = samdb_result_string(res[0], "sAMAccountName", NULL);
+ if (s != NULL) {
+ struct group *grp = getgrnam(s);
+ if (!grp) {
+ DEBUG(0,("sAMAccountName '%s' for sid %s does not exist as a local group\n", s, dom_sid_string(tmp_ctx, sid)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_SUCH_GROUP;
+ }
+ *gid = grp->gr_gid;
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+allocated_sid:
+ status = sidmap_primary_domain_sid(sidmap, tmp_ctx, &domain_sid);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_SUCH_DOMAIN;
+ }
+
+ if (dom_sid_in_domain(domain_sid, sid)) {
+ uint32_t rid = sid->sub_auths[sid->num_auths-1];
+ if (rid >= SIDMAP_LOCAL_GROUP_BASE) {
+ *gid = rid - SIDMAP_LOCAL_GROUP_BASE;
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+ }
+
+ DEBUG(0,("sid_to_unixgid: no gidNumber, unixName or sAMAccountName for sid %s\n",
+ dom_sid_string(tmp_ctx, sid)));
+
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NONE_MAPPED;
+}
+
+
+/*
+ map a unix uid to a dom_sid
+ the returned sid is allocated in the supplied mem_ctx
+*/
+NTSTATUS sidmap_uid_to_sid(struct sidmap_context *sidmap,
+ TALLOC_CTX *mem_ctx,
+ const uid_t uid, struct dom_sid **sid)
+{
+ const char *attrs[] = { "sAMAccountName", "objectSid", "sAMAccountType", NULL };
+ int ret, i;
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_message **res;
+ struct passwd *pwd;
+ struct dom_sid *domain_sid;
+ NTSTATUS status;
+
+ /*
+ we search for the mapping in the following order:
+
+ - check if the uid is in the dynamic uid range assigned for winbindd
+ use. If it is, then look in winbindd sid mapping
+ database (not implemented yet)
+ - look for a user account in samdb that has uidNumber set to the
+ given uid
+ - look for a user account in samdb that has unixName or
+ sAMAccountName set to the name given by getpwuid()
+ - assign a SID by adding the uid to SIDMAP_LOCAL_USER_BASE in the local
+ domain
+ */
+
+
+ tmp_ctx = talloc_new(mem_ctx);
+
+
+ /*
+ step 2: look for a user account in samdb that has uidNumber set to the
+ given uid
+ */
+
+ ret = gendb_search(sidmap->samctx, tmp_ctx, NULL, &res, attrs,
+ "uidNumber=%u", (unsigned int)uid);
+ for (i=0;i<ret;i++) {
+ if (!is_user_account(res[i])) continue;
+
+ *sid = samdb_result_dom_sid(mem_ctx, res[i], "objectSid");
+ talloc_free(tmp_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(*sid);
+ return NT_STATUS_OK;
+ }
+
+ /*
+ step 3: look for a user account in samdb that has unixName
+ or sAMAccountName set to the name given by getpwuid()
+ */
+ pwd = getpwuid(uid);
+ if (pwd == NULL) {
+ goto allocate_sid;
+ }
+
+ ret = gendb_search(sidmap->samctx, tmp_ctx, NULL, &res, attrs,
+ "(|(unixName=%s)(sAMAccountName=%s))",
+ pwd->pw_name, pwd->pw_name);
+ for (i=0;i<ret;i++) {
+ if (!is_user_account(res[i])) continue;
+
+ *sid = samdb_result_dom_sid(mem_ctx, res[i], "objectSid");
+ talloc_free(tmp_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(*sid);
+ return NT_STATUS_OK;
+ }
+
+
+ /*
+ step 4: assign a SID by adding the uid to
+ SIDMAP_LOCAL_USER_BASE in the local domain
+ */
+allocate_sid:
+ if (uid > SIDMAP_MAX_LOCAL_UID) {
+ return NT_STATUS_NONE_MAPPED;
+ }
+
+ status = sidmap_primary_domain_sid(sidmap, tmp_ctx, &domain_sid);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return status;
+ }
+
+ *sid = dom_sid_add_rid(mem_ctx, domain_sid, SIDMAP_LOCAL_USER_BASE + uid);
+ talloc_free(tmp_ctx);
+
+ if (*sid == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ return NT_STATUS_OK;
+}
+
+
+/*
+ map a unix gid to a dom_sid
+ the returned sid is allocated in the supplied mem_ctx
+*/
+NTSTATUS sidmap_gid_to_sid(struct sidmap_context *sidmap,
+ TALLOC_CTX *mem_ctx,
+ const gid_t gid, struct dom_sid **sid)
+{
+ const char *attrs[] = { "sAMAccountName", "objectSid", "sAMAccountType", NULL };
+ int ret, i;
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_message **res;
+ struct group *grp;
+ struct dom_sid *domain_sid;
+ NTSTATUS status;
+
+ /*
+ we search for the mapping in the following order:
+
+ - check if the gid is in the dynamic gid range assigned for winbindd
+ use. If it is, then look in winbindd sid mapping
+ database (not implemented yet)
+ - look for a group account in samdb that has gidNumber set to the
+ given gid
+ - look for a group account in samdb that has unixName or
+ sAMAccountName set to the name given by getgrgid()
+ - assign a SID by adding the gid to SIDMAP_LOCAL_GROUP_BASE in the local
+ domain
+ */
+
+
+ tmp_ctx = talloc_new(sidmap);
+
+
+ /*
+ step 2: look for a group account in samdb that has gidNumber set to the
+ given gid
+ */
+
+ ret = gendb_search(sidmap->samctx, tmp_ctx, NULL, &res, attrs,
+ "gidNumber=%u", (unsigned int)gid);
+ for (i=0;i<ret;i++) {
+ if (!is_group_account(res[i])) continue;
+
+ *sid = samdb_result_dom_sid(mem_ctx, res[i], "objectSid");
+ talloc_free(tmp_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(*sid);
+ return NT_STATUS_OK;
+ }
+
+ /*
+ step 3: look for a group account in samdb that has unixName
+ or sAMAccountName set to the name given by getgrgid()
+ */
+ grp = getgrgid(gid);
+ if (grp == NULL) {
+ goto allocate_sid;
+ }
+
+ ret = gendb_search(sidmap->samctx, tmp_ctx, NULL, &res, attrs,
+ "(|(unixName=%s)(sAMAccountName=%s))",
+ grp->gr_name, grp->gr_name);
+ for (i=0;i<ret;i++) {
+ if (!is_group_account(res[i])) continue;
+
+ *sid = samdb_result_dom_sid(mem_ctx, res[i], "objectSid");
+ talloc_free(tmp_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(*sid);
+ return NT_STATUS_OK;
+ }
+
+
+ /*
+ step 4: assign a SID by adding the gid to
+ SIDMAP_LOCAL_GROUP_BASE in the local domain
+ */
+allocate_sid:
+ if (gid > SIDMAP_MAX_LOCAL_GID) {
+ return NT_STATUS_NONE_MAPPED;
+ }
+
+ status = sidmap_primary_domain_sid(sidmap, tmp_ctx, &domain_sid);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return status;
+ }
+
+ *sid = dom_sid_add_rid(mem_ctx, domain_sid, SIDMAP_LOCAL_GROUP_BASE + gid);
+ talloc_free(tmp_ctx);
+
+ if (*sid == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*
+ check if a sid is in the range of auto-allocated SIDs from our primary domain,
+ and if it is, then return the name and atype
+*/
+NTSTATUS sidmap_allocated_sid_lookup(struct sidmap_context *sidmap,
+ TALLOC_CTX *mem_ctx,
+ const struct dom_sid *sid,
+ const char **name,
+ enum lsa_SidType *rtype)
+{
+ NTSTATUS status;
+ struct dom_sid *domain_sid;
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ uint32_t rid, atype;
+
+ status = sidmap_primary_domain_sid(sidmap, tmp_ctx, &domain_sid);
+ if (!NT_STATUS_IS_OK(status)) {
+ return NT_STATUS_NO_SUCH_DOMAIN;
+ }
+
+ if (!dom_sid_in_domain(domain_sid, sid)) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NONE_MAPPED;
+ }
+
+ talloc_free(tmp_ctx);
+
+ rid = sid->sub_auths[sid->num_auths-1];
+ if (rid < SIDMAP_LOCAL_USER_BASE) {
+ return NT_STATUS_NONE_MAPPED;
+ }
+
+ if (rid < SIDMAP_LOCAL_GROUP_BASE) {
+ struct passwd *pwd;
+ uid_t uid = rid - SIDMAP_LOCAL_USER_BASE;
+ atype = ATYPE_NORMAL_ACCOUNT;
+ *rtype = samdb_atype_map(atype);
+
+ pwd = getpwuid(uid);
+ if (pwd == NULL) {
+ *name = talloc_asprintf(mem_ctx, "uid%u", uid);
+ } else {
+ *name = talloc_strdup(mem_ctx, pwd->pw_name);
+ }
+ } else {
+ struct group *grp;
+ gid_t gid = rid - SIDMAP_LOCAL_GROUP_BASE;
+ atype = ATYPE_LOCAL_GROUP;
+ *rtype = samdb_atype_map(atype);
+ grp = getgrgid(gid);
+ if (grp == NULL) {
+ *name = talloc_asprintf(mem_ctx, "gid%u", gid);
+ } else {
+ *name = talloc_strdup(mem_ctx, grp->gr_name);
+ }
+ }
+
+ if (*name == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ return NT_STATUS_OK;
+}
diff --git a/source4/dsdb/common/util.c b/source4/dsdb/common/util.c
new file mode 100644
index 0000000000..fa8276e7b4
--- /dev/null
+++ b/source4/dsdb/common/util.c
@@ -0,0 +1,1994 @@
+/*
+ Unix SMB/CIFS implementation.
+ Samba utility functions
+
+ Copyright (C) Andrew Tridgell 2004
+ Copyright (C) Volker Lendecke 2004
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006
+ Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
+
+ 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 "events.h"
+#include "ldb.h"
+#include "ldb_errors.h"
+#include "lib/util/util_ldb.h"
+#include "dsdb/samdb/samdb.h"
+#include "libcli/security/security.h"
+#include "librpc/gen_ndr/ndr_security.h"
+#include "librpc/gen_ndr/ndr_misc.h"
+#include "dsdb/common/flags.h"
+#include "dsdb/common/proto.h"
+#include "libcli/ldap/ldap_ndr.h"
+#include "param/param.h"
+#include "libcli/auth/libcli_auth.h"
+
+/*
+ search the sam for the specified attributes in a specific domain, filter on
+ objectSid being in domain_sid.
+*/
+int samdb_search_domain(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *basedn,
+ struct ldb_message ***res,
+ const char * const *attrs,
+ const struct dom_sid *domain_sid,
+ const char *format, ...) _PRINTF_ATTRIBUTE(7,8)
+{
+ va_list ap;
+ int i, count;
+
+ va_start(ap, format);
+ count = gendb_search_v(sam_ldb, mem_ctx, basedn,
+ res, attrs, format, ap);
+ va_end(ap);
+
+ i=0;
+
+ while (i<count) {
+ struct dom_sid *entry_sid;
+
+ entry_sid = samdb_result_dom_sid(mem_ctx, (*res)[i], "objectSid");
+
+ if ((entry_sid == NULL) ||
+ (!dom_sid_in_domain(domain_sid, entry_sid))) {
+ /* Delete that entry from the result set */
+ (*res)[i] = (*res)[count-1];
+ count -= 1;
+ talloc_free(entry_sid);
+ continue;
+ }
+ talloc_free(entry_sid);
+ i += 1;
+ }
+
+ return count;
+}
+
+/*
+ search the sam for a single string attribute in exactly 1 record
+*/
+const char *samdb_search_string_v(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *basedn,
+ const char *attr_name,
+ const char *format, va_list ap) _PRINTF_ATTRIBUTE(5,0)
+{
+ int count;
+ const char *attrs[2] = { NULL, NULL };
+ struct ldb_message **res = NULL;
+
+ attrs[0] = attr_name;
+
+ count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
+ if (count > 1) {
+ DEBUG(1,("samdb: search for %s %s not single valued (count=%d)\n",
+ attr_name, format, count));
+ }
+ if (count != 1) {
+ talloc_free(res);
+ return NULL;
+ }
+
+ return samdb_result_string(res[0], attr_name, NULL);
+}
+
+
+/*
+ search the sam for a single string attribute in exactly 1 record
+*/
+const char *samdb_search_string(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *basedn,
+ const char *attr_name,
+ const char *format, ...) _PRINTF_ATTRIBUTE(5,6)
+{
+ va_list ap;
+ const char *str;
+
+ va_start(ap, format);
+ str = samdb_search_string_v(sam_ldb, mem_ctx, basedn, attr_name, format, ap);
+ va_end(ap);
+
+ return str;
+}
+
+struct ldb_dn *samdb_search_dn(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *basedn,
+ const char *format, ...) _PRINTF_ATTRIBUTE(4,5)
+{
+ va_list ap;
+ struct ldb_dn *ret;
+ struct ldb_message **res = NULL;
+ int count;
+
+ va_start(ap, format);
+ count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, NULL, format, ap);
+ va_end(ap);
+
+ if (count != 1) return NULL;
+
+ ret = talloc_steal(mem_ctx, res[0]->dn);
+ talloc_free(res);
+
+ return ret;
+}
+
+/*
+ search the sam for a dom_sid attribute in exactly 1 record
+*/
+struct dom_sid *samdb_search_dom_sid(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *basedn,
+ const char *attr_name,
+ const char *format, ...) _PRINTF_ATTRIBUTE(5,6)
+{
+ va_list ap;
+ int count;
+ struct ldb_message **res;
+ const char *attrs[2] = { NULL, NULL };
+ struct dom_sid *sid;
+
+ attrs[0] = attr_name;
+
+ va_start(ap, format);
+ count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
+ va_end(ap);
+ if (count > 1) {
+ DEBUG(1,("samdb: search for %s %s not single valued (count=%d)\n",
+ attr_name, format, count));
+ }
+ if (count != 1) {
+ talloc_free(res);
+ return NULL;
+ }
+ sid = samdb_result_dom_sid(mem_ctx, res[0], attr_name);
+ talloc_free(res);
+ return sid;
+}
+
+/*
+ return the count of the number of records in the sam matching the query
+*/
+int samdb_search_count(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *basedn,
+ const char *format, ...) _PRINTF_ATTRIBUTE(4,5)
+{
+ va_list ap;
+ struct ldb_message **res;
+ const char * const attrs[] = { NULL };
+ int ret;
+
+ va_start(ap, format);
+ ret = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
+ va_end(ap);
+
+ return ret;
+}
+
+
+/*
+ search the sam for a single integer attribute in exactly 1 record
+*/
+uint_t samdb_search_uint(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ uint_t default_value,
+ struct ldb_dn *basedn,
+ const char *attr_name,
+ const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
+{
+ va_list ap;
+ int count;
+ struct ldb_message **res;
+ const char *attrs[2] = { NULL, NULL };
+
+ attrs[0] = attr_name;
+
+ va_start(ap, format);
+ count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
+ va_end(ap);
+
+ if (count != 1) {
+ return default_value;
+ }
+
+ return samdb_result_uint(res[0], attr_name, default_value);
+}
+
+/*
+ search the sam for a single signed 64 bit integer attribute in exactly 1 record
+*/
+int64_t samdb_search_int64(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ int64_t default_value,
+ struct ldb_dn *basedn,
+ const char *attr_name,
+ const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
+{
+ va_list ap;
+ int count;
+ struct ldb_message **res;
+ const char *attrs[2] = { NULL, NULL };
+
+ attrs[0] = attr_name;
+
+ va_start(ap, format);
+ count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
+ va_end(ap);
+
+ if (count != 1) {
+ return default_value;
+ }
+
+ return samdb_result_int64(res[0], attr_name, default_value);
+}
+
+/*
+ search the sam for multipe records each giving a single string attribute
+ return the number of matches, or -1 on error
+*/
+int samdb_search_string_multiple(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *basedn,
+ const char ***strs,
+ const char *attr_name,
+ const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
+{
+ va_list ap;
+ int count, i;
+ const char *attrs[2] = { NULL, NULL };
+ struct ldb_message **res = NULL;
+
+ attrs[0] = attr_name;
+
+ va_start(ap, format);
+ count = gendb_search_v(sam_ldb, mem_ctx, basedn, &res, attrs, format, ap);
+ va_end(ap);
+
+ if (count <= 0) {
+ return count;
+ }
+
+ /* make sure its single valued */
+ for (i=0;i<count;i++) {
+ if (res[i]->num_elements != 1) {
+ DEBUG(1,("samdb: search for %s %s not single valued\n",
+ attr_name, format));
+ talloc_free(res);
+ return -1;
+ }
+ }
+
+ *strs = talloc_array(mem_ctx, const char *, count+1);
+ if (! *strs) {
+ talloc_free(res);
+ return -1;
+ }
+
+ for (i=0;i<count;i++) {
+ (*strs)[i] = samdb_result_string(res[i], attr_name, NULL);
+ }
+ (*strs)[count] = NULL;
+
+ return count;
+}
+
+/*
+ pull a uint from a result set.
+*/
+uint_t samdb_result_uint(const struct ldb_message *msg, const char *attr, uint_t default_value)
+{
+ return ldb_msg_find_attr_as_uint(msg, attr, default_value);
+}
+
+/*
+ pull a (signed) int64 from a result set.
+*/
+int64_t samdb_result_int64(const struct ldb_message *msg, const char *attr, int64_t default_value)
+{
+ return ldb_msg_find_attr_as_int64(msg, attr, default_value);
+}
+
+/*
+ pull a string from a result set.
+*/
+const char *samdb_result_string(const struct ldb_message *msg, const char *attr,
+ const char *default_value)
+{
+ return ldb_msg_find_attr_as_string(msg, attr, default_value);
+}
+
+struct ldb_dn *samdb_result_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
+ const char *attr, struct ldb_dn *default_value)
+{
+ struct ldb_dn *ret_dn = ldb_msg_find_attr_as_dn(ldb, mem_ctx, msg, attr);
+ if (!ret_dn) {
+ return default_value;
+ }
+ return ret_dn;
+}
+
+/*
+ pull a rid from a objectSid in a result set.
+*/
+uint32_t samdb_result_rid_from_sid(TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
+ const char *attr, uint32_t default_value)
+{
+ struct dom_sid *sid;
+ uint32_t rid;
+
+ sid = samdb_result_dom_sid(mem_ctx, msg, attr);
+ if (sid == NULL) {
+ return default_value;
+ }
+ rid = sid->sub_auths[sid->num_auths-1];
+ talloc_free(sid);
+ return rid;
+}
+
+/*
+ pull a dom_sid structure from a objectSid in a result set.
+*/
+struct dom_sid *samdb_result_dom_sid(TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
+ const char *attr)
+{
+ const struct ldb_val *v;
+ struct dom_sid *sid;
+ enum ndr_err_code ndr_err;
+ v = ldb_msg_find_ldb_val(msg, attr);
+ if (v == NULL) {
+ return NULL;
+ }
+ sid = talloc(mem_ctx, struct dom_sid);
+ if (sid == NULL) {
+ return NULL;
+ }
+ ndr_err = ndr_pull_struct_blob(v, sid, NULL, sid,
+ (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ talloc_free(sid);
+ return NULL;
+ }
+ return sid;
+}
+
+/*
+ pull a guid structure from a objectGUID in a result set.
+*/
+struct GUID samdb_result_guid(const struct ldb_message *msg, const char *attr)
+{
+ const struct ldb_val *v;
+ enum ndr_err_code ndr_err;
+ struct GUID guid;
+ TALLOC_CTX *mem_ctx;
+
+ ZERO_STRUCT(guid);
+
+ v = ldb_msg_find_ldb_val(msg, attr);
+ if (!v) return guid;
+
+ mem_ctx = talloc_named_const(NULL, 0, "samdb_result_guid");
+ if (!mem_ctx) return guid;
+ ndr_err = ndr_pull_struct_blob(v, mem_ctx, NULL, &guid,
+ (ndr_pull_flags_fn_t)ndr_pull_GUID);
+ talloc_free(mem_ctx);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ return guid;
+ }
+
+ return guid;
+}
+
+/*
+ pull a sid prefix from a objectSid in a result set.
+ this is used to find the domain sid for a user
+*/
+struct dom_sid *samdb_result_sid_prefix(TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
+ const char *attr)
+{
+ struct dom_sid *sid = samdb_result_dom_sid(mem_ctx, msg, attr);
+ if (!sid || sid->num_auths < 1) return NULL;
+ sid->num_auths--;
+ return sid;
+}
+
+/*
+ pull a NTTIME in a result set.
+*/
+NTTIME samdb_result_nttime(struct ldb_message *msg, const char *attr, NTTIME default_value)
+{
+ return ldb_msg_find_attr_as_uint64(msg, attr, default_value);
+}
+
+/*
+ * Windows uses both 0 and 9223372036854775807 (0x7FFFFFFFFFFFFFFFULL) to
+ * indicate an account doesn't expire.
+ *
+ * When Windows initially creates an account, it sets
+ * accountExpires = 9223372036854775807 (0x7FFFFFFFFFFFFFFF). However,
+ * when changing from an account having a specific expiration date to
+ * that account never expiring, it sets accountExpires = 0.
+ *
+ * Consolidate that logic here to allow clearer logic for account expiry in
+ * the rest of the code.
+ */
+NTTIME samdb_result_account_expires(struct ldb_message *msg)
+{
+ NTTIME ret = ldb_msg_find_attr_as_uint64(msg, "accountExpires",
+ 0);
+
+ if (ret == 0)
+ ret = 0x7FFFFFFFFFFFFFFFULL;
+
+ return ret;
+}
+
+/*
+ pull a uint64_t from a result set.
+*/
+uint64_t samdb_result_uint64(struct ldb_message *msg, const char *attr, uint64_t default_value)
+{
+ return ldb_msg_find_attr_as_uint64(msg, attr, default_value);
+}
+
+
+/*
+ construct the allow_password_change field from the PwdLastSet attribute and the
+ domain password settings
+*/
+NTTIME samdb_result_allow_password_change(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *domain_dn,
+ struct ldb_message *msg,
+ const char *attr)
+{
+ uint64_t attr_time = samdb_result_uint64(msg, attr, 0);
+ int64_t minPwdAge;
+
+ if (attr_time == 0) {
+ return 0;
+ }
+
+ minPwdAge = samdb_search_int64(sam_ldb, mem_ctx, 0, domain_dn, "minPwdAge", NULL);
+
+ /* yes, this is a -= not a += as minPwdAge is stored as the negative
+ of the number of 100-nano-seconds */
+ attr_time -= minPwdAge;
+
+ return attr_time;
+}
+
+/*
+ construct the force_password_change field from the PwdLastSet
+ attribute, the userAccountControl and the domain password settings
+*/
+NTTIME samdb_result_force_password_change(struct ldb_context *sam_ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *domain_dn,
+ struct ldb_message *msg)
+{
+ uint64_t attr_time = samdb_result_uint64(msg, "pwdLastSet", 0);
+ uint32_t userAccountControl = samdb_result_uint64(msg, "userAccountControl", 0);
+ int64_t maxPwdAge;
+
+ /* Machine accounts don't expire, and there is a flag for 'no expiry' */
+ if (!(userAccountControl & UF_NORMAL_ACCOUNT)
+ || (userAccountControl & UF_DONT_EXPIRE_PASSWD)) {
+ return 0x7FFFFFFFFFFFFFFFULL;
+ }
+
+ if (attr_time == 0) {
+ return 0;
+ }
+
+ maxPwdAge = samdb_search_int64(sam_ldb, mem_ctx, 0, domain_dn, "maxPwdAge", NULL);
+ if (maxPwdAge == 0) {
+ return 0x7FFFFFFFFFFFFFFFULL;
+ } else {
+ attr_time -= maxPwdAge;
+ }
+
+ return attr_time;
+}
+
+/*
+ pull a samr_Password structutre from a result set.
+*/
+struct samr_Password *samdb_result_hash(TALLOC_CTX *mem_ctx, struct ldb_message *msg, const char *attr)
+{
+ struct samr_Password *hash = NULL;
+ const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
+ if (val && (val->length >= sizeof(hash->hash))) {
+ hash = talloc(mem_ctx, struct samr_Password);
+ memcpy(hash->hash, val->data, MIN(val->length, sizeof(hash->hash)));
+ }
+ return hash;
+}
+
+/*
+ pull an array of samr_Password structutres from a result set.
+*/
+uint_t samdb_result_hashes(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr, struct samr_Password **hashes)
+{
+ uint_t count = 0;
+ const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
+ int i;
+
+ *hashes = NULL;
+ if (!val) {
+ return 0;
+ }
+ count = val->length / 16;
+ if (count == 0) {
+ return 0;
+ }
+
+ *hashes = talloc_array(mem_ctx, struct samr_Password, count);
+ if (! *hashes) {
+ return 0;
+ }
+
+ for (i=0;i<count;i++) {
+ memcpy((*hashes)[i].hash, (i*16)+(char *)val->data, 16);
+ }
+
+ return count;
+}
+
+NTSTATUS samdb_result_passwords(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ struct samr_Password **lm_pwd, struct samr_Password **nt_pwd)
+{
+ struct samr_Password *lmPwdHash, *ntPwdHash;
+ if (nt_pwd) {
+ int num_nt;
+ num_nt = samdb_result_hashes(mem_ctx, msg, "unicodePwd", &ntPwdHash);
+ if (num_nt == 0) {
+ *nt_pwd = NULL;
+ } else if (num_nt > 1) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ } else {
+ *nt_pwd = &ntPwdHash[0];
+ }
+ }
+ if (lm_pwd) {
+ int num_lm;
+ num_lm = samdb_result_hashes(mem_ctx, msg, "dBCSPwd", &lmPwdHash);
+ if (num_lm == 0) {
+ *lm_pwd = NULL;
+ } else if (num_lm > 1) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ } else {
+ *lm_pwd = &lmPwdHash[0];
+ }
+ }
+ return NT_STATUS_OK;
+}
+
+/*
+ pull a samr_LogonHours structutre from a result set.
+*/
+struct samr_LogonHours samdb_result_logon_hours(TALLOC_CTX *mem_ctx, struct ldb_message *msg, const char *attr)
+{
+ struct samr_LogonHours hours;
+ const int units_per_week = 168;
+ const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
+ ZERO_STRUCT(hours);
+ hours.bits = talloc_array(mem_ctx, uint8_t, units_per_week);
+ if (!hours.bits) {
+ return hours;
+ }
+ hours.units_per_week = units_per_week;
+ memset(hours.bits, 0xFF, units_per_week);
+ if (val) {
+ memcpy(hours.bits, val->data, MIN(val->length, units_per_week));
+ }
+ return hours;
+}
+
+/*
+ pull a set of account_flags from a result set.
+
+ This requires that the attributes:
+ pwdLastSet
+ userAccountControl
+ be included in 'msg'
+*/
+uint32_t samdb_result_acct_flags(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
+ struct ldb_message *msg, struct ldb_dn *domain_dn)
+{
+ uint32_t userAccountControl = ldb_msg_find_attr_as_uint(msg, "userAccountControl", 0);
+ uint32_t acct_flags = samdb_uf2acb(userAccountControl);
+ NTTIME must_change_time;
+ NTTIME now;
+
+ must_change_time = samdb_result_force_password_change(sam_ctx, mem_ctx,
+ domain_dn, msg);
+
+ /* Test account expire time */
+ unix_to_nt_time(&now, time(NULL));
+ /* check for expired password */
+ if (must_change_time < now) {
+ acct_flags |= ACB_PW_EXPIRED;
+ }
+ return acct_flags;
+}
+
+
+/* Find an attribute, with a particular value */
+
+/* The current callers of this function expect a very specific
+ * behaviour: In particular, objectClass subclass equivilance is not
+ * wanted. This means that we should not lookup the schema for the
+ * comparison function */
+struct ldb_message_element *samdb_find_attribute(struct ldb_context *ldb,
+ const struct ldb_message *msg,
+ const char *name, const char *value)
+{
+ int i;
+ struct ldb_message_element *el = ldb_msg_find_element(msg, name);
+
+ if (!el) {
+ return NULL;
+ }
+
+ for (i=0;i<el->num_values;i++) {
+ if (ldb_attr_cmp(value, (char *)el->values[i].data) == 0) {
+ return el;
+ }
+ }
+
+ return NULL;
+}
+
+int samdb_find_or_add_value(struct ldb_context *ldb, struct ldb_message *msg, const char *name, const char *set_value)
+{
+ if (samdb_find_attribute(ldb, msg, name, set_value) == NULL) {
+ return samdb_msg_add_string(ldb, msg, msg, name, set_value);
+ }
+ return LDB_SUCCESS;
+}
+
+int samdb_find_or_add_attribute(struct ldb_context *ldb, struct ldb_message *msg, const char *name, const char *set_value)
+{
+ struct ldb_message_element *el;
+
+ el = ldb_msg_find_element(msg, name);
+ if (el) {
+ return LDB_SUCCESS;
+ }
+
+ return samdb_msg_add_string(ldb, msg, msg, name, set_value);
+}
+
+
+
+/*
+ add a string element to a message
+*/
+int samdb_msg_add_string(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, const char *str)
+{
+ char *s = talloc_strdup(mem_ctx, str);
+ char *a = talloc_strdup(mem_ctx, attr_name);
+ if (s == NULL || a == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ return ldb_msg_add_string(msg, a, s);
+}
+
+/*
+ add a dom_sid element to a message
+*/
+int samdb_msg_add_dom_sid(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, struct dom_sid *sid)
+{
+ struct ldb_val v;
+ enum ndr_err_code ndr_err;
+
+ ndr_err = ndr_push_struct_blob(&v, mem_ctx,
+ lp_iconv_convenience(ldb_get_opaque(sam_ldb, "loadparm")),
+ sid,
+ (ndr_push_flags_fn_t)ndr_push_dom_sid);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ return -1;
+ }
+ return ldb_msg_add_value(msg, attr_name, &v, NULL);
+}
+
+
+/*
+ add a delete element operation to a message
+*/
+int samdb_msg_add_delete(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name)
+{
+ /* we use an empty replace rather than a delete, as it allows for
+ samdb_replace() to be used everywhere */
+ return ldb_msg_add_empty(msg, attr_name, LDB_FLAG_MOD_REPLACE, NULL);
+}
+
+/*
+ add a add attribute value to a message
+*/
+int samdb_msg_add_addval(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, const char *value)
+{
+ struct ldb_message_element *el;
+ char *a, *v;
+ int ret;
+ a = talloc_strdup(mem_ctx, attr_name);
+ if (a == NULL)
+ return -1;
+ v = talloc_strdup(mem_ctx, value);
+ if (v == NULL)
+ return -1;
+ ret = ldb_msg_add_string(msg, a, v);
+ if (ret != 0)
+ return ret;
+ el = ldb_msg_find_element(msg, a);
+ if (el == NULL)
+ return -1;
+ el->flags = LDB_FLAG_MOD_ADD;
+ return 0;
+}
+
+/*
+ add a delete attribute value to a message
+*/
+int samdb_msg_add_delval(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, const char *value)
+{
+ struct ldb_message_element *el;
+ char *a, *v;
+ int ret;
+ a = talloc_strdup(mem_ctx, attr_name);
+ if (a == NULL)
+ return -1;
+ v = talloc_strdup(mem_ctx, value);
+ if (v == NULL)
+ return -1;
+ ret = ldb_msg_add_string(msg, a, v);
+ if (ret != 0)
+ return ret;
+ el = ldb_msg_find_element(msg, a);
+ if (el == NULL)
+ return -1;
+ el->flags = LDB_FLAG_MOD_DELETE;
+ return 0;
+}
+
+/*
+ add a int element to a message
+*/
+int samdb_msg_add_int(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, int v)
+{
+ const char *s = talloc_asprintf(mem_ctx, "%d", v);
+ return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, s);
+}
+
+/*
+ add a uint_t element to a message
+*/
+int samdb_msg_add_uint(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, uint_t v)
+{
+ const char *s = talloc_asprintf(mem_ctx, "%u", v);
+ return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, s);
+}
+
+/*
+ add a (signed) int64_t element to a message
+*/
+int samdb_msg_add_int64(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, int64_t v)
+{
+ const char *s = talloc_asprintf(mem_ctx, "%lld", (long long)v);
+ return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, s);
+}
+
+/*
+ add a uint64_t element to a message
+*/
+int samdb_msg_add_uint64(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, uint64_t v)
+{
+ const char *s = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)v);
+ return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, s);
+}
+
+/*
+ add a samr_Password element to a message
+*/
+int samdb_msg_add_hash(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, struct samr_Password *hash)
+{
+ struct ldb_val val;
+ val.data = talloc_memdup(mem_ctx, hash->hash, 16);
+ if (!val.data) {
+ return -1;
+ }
+ val.length = 16;
+ return ldb_msg_add_value(msg, attr_name, &val, NULL);
+}
+
+/*
+ add a samr_Password array to a message
+*/
+int samdb_msg_add_hashes(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, struct samr_Password *hashes, uint_t count)
+{
+ struct ldb_val val;
+ int i;
+ val.data = talloc_array_size(mem_ctx, 16, count);
+ val.length = count*16;
+ if (!val.data) {
+ return -1;
+ }
+ for (i=0;i<count;i++) {
+ memcpy(i*16 + (char *)val.data, hashes[i].hash, 16);
+ }
+ return ldb_msg_add_value(msg, attr_name, &val, NULL);
+}
+
+/*
+ add a acct_flags element to a message
+*/
+int samdb_msg_add_acct_flags(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, uint32_t v)
+{
+ return samdb_msg_add_uint(sam_ldb, mem_ctx, msg, attr_name, samdb_acb2uf(v));
+}
+
+/*
+ add a logon_hours element to a message
+*/
+int samdb_msg_add_logon_hours(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, struct samr_LogonHours *hours)
+{
+ struct ldb_val val;
+ val.length = hours->units_per_week / 8;
+ val.data = hours->bits;
+ return ldb_msg_add_value(msg, attr_name, &val, NULL);
+}
+
+/*
+ add a general value element to a message
+*/
+int samdb_msg_add_value(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, const struct ldb_val *val)
+{
+ return ldb_msg_add_value(msg, attr_name, val, NULL);
+}
+
+/*
+ sets a general value element to a message
+*/
+int samdb_msg_set_value(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, const struct ldb_val *val)
+{
+ struct ldb_message_element *el;
+
+ el = ldb_msg_find_element(msg, attr_name);
+ if (el) {
+ el->num_values = 0;
+ }
+ return ldb_msg_add_value(msg, attr_name, val, NULL);
+}
+
+/*
+ set a string element in a message
+*/
+int samdb_msg_set_string(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, const char *str)
+{
+ struct ldb_message_element *el;
+
+ el = ldb_msg_find_element(msg, attr_name);
+ if (el) {
+ el->num_values = 0;
+ }
+ return samdb_msg_add_string(sam_ldb, mem_ctx, msg, attr_name, str);
+}
+
+/*
+ replace elements in a record
+*/
+int samdb_replace(struct ldb_context *sam_ldb, TALLOC_CTX *mem_ctx, struct ldb_message *msg)
+{
+ int i;
+
+ /* mark all the message elements as LDB_FLAG_MOD_REPLACE */
+ for (i=0;i<msg->num_elements;i++) {
+ msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
+ }
+
+ /* modify the samdb record */
+ return ldb_modify(sam_ldb, msg);
+}
+
+/*
+ return a default security descriptor
+*/
+struct security_descriptor *samdb_default_security_descriptor(TALLOC_CTX *mem_ctx)
+{
+ struct security_descriptor *sd;
+
+ sd = security_descriptor_initialise(mem_ctx);
+
+ return sd;
+}
+
+struct ldb_dn *samdb_base_dn(struct ldb_context *sam_ctx)
+{
+ return ldb_get_default_basedn(sam_ctx);
+}
+
+struct ldb_dn *samdb_config_dn(struct ldb_context *sam_ctx)
+{
+ return ldb_get_config_basedn(sam_ctx);
+}
+
+struct ldb_dn *samdb_schema_dn(struct ldb_context *sam_ctx)
+{
+ return ldb_get_schema_basedn(sam_ctx);
+}
+
+struct ldb_dn *samdb_root_dn(struct ldb_context *sam_ctx)
+{
+ return ldb_get_root_basedn(sam_ctx);
+}
+
+struct ldb_dn *samdb_partitions_dn(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx)
+{
+ struct ldb_dn *new_dn;
+
+ new_dn = ldb_dn_copy(mem_ctx, samdb_config_dn(sam_ctx));
+ if ( ! ldb_dn_add_child_fmt(new_dn, "CN=Partitions")) {
+ talloc_free(new_dn);
+ return NULL;
+ }
+ return new_dn;
+}
+
+struct ldb_dn *samdb_sites_dn(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx)
+{
+ struct ldb_dn *new_dn;
+
+ new_dn = ldb_dn_copy(mem_ctx, samdb_config_dn(sam_ctx));
+ if ( ! ldb_dn_add_child_fmt(new_dn, "CN=Sites")) {
+ talloc_free(new_dn);
+ return NULL;
+ }
+ return new_dn;
+}
+
+/*
+ work out the domain sid for the current open ldb
+*/
+const struct dom_sid *samdb_domain_sid(struct ldb_context *ldb)
+{
+ TALLOC_CTX *tmp_ctx;
+ const struct dom_sid *domain_sid;
+ const char *attrs[] = {
+ "objectSid",
+ NULL
+ };
+ struct ldb_result *res;
+ int ret;
+
+ /* see if we have a cached copy */
+ domain_sid = (struct dom_sid *)ldb_get_opaque(ldb, "cache.domain_sid");
+ if (domain_sid) {
+ return domain_sid;
+ }
+
+ tmp_ctx = talloc_new(ldb);
+ if (tmp_ctx == NULL) {
+ goto failed;
+ }
+
+ ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, ldb_get_default_basedn(ldb), LDB_SCOPE_BASE, attrs, "objectSid=*");
+
+ if (ret != LDB_SUCCESS) {
+ goto failed;
+ }
+
+ if (res->count != 1) {
+ goto failed;
+ }
+
+ domain_sid = samdb_result_dom_sid(tmp_ctx, res->msgs[0], "objectSid");
+ if (domain_sid == NULL) {
+ goto failed;
+ }
+
+ /* cache the domain_sid in the ldb */
+ if (ldb_set_opaque(ldb, "cache.domain_sid", discard_const_p(struct dom_sid, domain_sid)) != LDB_SUCCESS) {
+ goto failed;
+ }
+
+ talloc_steal(ldb, domain_sid);
+ talloc_free(tmp_ctx);
+
+ return domain_sid;
+
+failed:
+ DEBUG(1,("Failed to find domain_sid for open ldb\n"));
+ talloc_free(tmp_ctx);
+ return NULL;
+}
+
+bool samdb_set_domain_sid(struct ldb_context *ldb, const struct dom_sid *dom_sid_in)
+{
+ TALLOC_CTX *tmp_ctx;
+ struct dom_sid *dom_sid_new;
+ struct dom_sid *dom_sid_old;
+
+ /* see if we have a cached copy */
+ dom_sid_old = talloc_get_type(ldb_get_opaque(ldb,
+ "cache.domain_sid"), struct dom_sid);
+
+ tmp_ctx = talloc_new(ldb);
+ if (tmp_ctx == NULL) {
+ goto failed;
+ }
+
+ dom_sid_new = dom_sid_dup(tmp_ctx, dom_sid_in);
+ if (!dom_sid_new) {
+ goto failed;
+ }
+
+ /* cache the domain_sid in the ldb */
+ if (ldb_set_opaque(ldb, "cache.domain_sid", dom_sid_new) != LDB_SUCCESS) {
+ goto failed;
+ }
+
+ talloc_steal(ldb, dom_sid_new);
+ talloc_free(tmp_ctx);
+ talloc_free(dom_sid_old);
+
+ return true;
+
+failed:
+ DEBUG(1,("Failed to set our own cached domain SID in the ldb!\n"));
+ talloc_free(tmp_ctx);
+ return false;
+}
+
+/* Obtain the short name of the flexible single master operator
+ * (FSMO), such as the PDC Emulator */
+const char *samdb_result_fsmo_name(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const struct ldb_message *msg,
+ const char *attr)
+{
+ /* Format is cn=NTDS Settings,cn=<NETBIOS name of FSMO>,.... */
+ struct ldb_dn *fsmo_dn = ldb_msg_find_attr_as_dn(ldb, mem_ctx, msg, attr);
+ const struct ldb_val *val = ldb_dn_get_component_val(fsmo_dn, 1);
+ const char *name = ldb_dn_get_component_name(fsmo_dn, 1);
+
+ if (!name || (ldb_attr_cmp(name, "cn") != 0)) {
+ /* Ensure this matches the format. This gives us a
+ * bit more confidence that a 'cn' value will be a
+ * ascii string */
+ return NULL;
+ }
+ if (val) {
+ return (char *)val->data;
+ }
+ return NULL;
+}
+
+/*
+ work out the ntds settings dn for the current open ldb
+*/
+struct ldb_dn *samdb_ntds_settings_dn(struct ldb_context *ldb)
+{
+ TALLOC_CTX *tmp_ctx;
+ const char *root_attrs[] = { "dsServiceName", NULL };
+ int ret;
+ struct ldb_result *root_res;
+ struct ldb_dn *settings_dn;
+
+ /* see if we have a cached copy */
+ settings_dn = (struct ldb_dn *)ldb_get_opaque(ldb, "cache.settings_dn");
+ if (settings_dn) {
+ return settings_dn;
+ }
+
+ tmp_ctx = talloc_new(ldb);
+ if (tmp_ctx == NULL) {
+ goto failed;
+ }
+
+
+ ret = ldb_search(ldb, ldb_dn_new(tmp_ctx, ldb, ""), LDB_SCOPE_BASE, NULL, root_attrs, &root_res);
+ if (ret) {
+ DEBUG(1,("Searching for dsServiceName in rootDSE failed: %s\n",
+ ldb_errstring(ldb)));
+ goto failed;
+ }
+ talloc_steal(tmp_ctx, root_res);
+
+ if (root_res->count != 1) {
+ goto failed;
+ }
+
+ settings_dn = ldb_msg_find_attr_as_dn(ldb, tmp_ctx, root_res->msgs[0], "dsServiceName");
+
+ /* cache the domain_sid in the ldb */
+ if (ldb_set_opaque(ldb, "cache.settings_dn", settings_dn) != LDB_SUCCESS) {
+ goto failed;
+ }
+
+ talloc_steal(ldb, settings_dn);
+ talloc_free(tmp_ctx);
+
+ return settings_dn;
+
+failed:
+ DEBUG(1,("Failed to find our own NTDS Settings DN in the ldb!\n"));
+ talloc_free(tmp_ctx);
+ return NULL;
+}
+
+/*
+ work out the ntds settings invocationId for the current open ldb
+*/
+const struct GUID *samdb_ntds_invocation_id(struct ldb_context *ldb)
+{
+ TALLOC_CTX *tmp_ctx;
+ const char *attrs[] = { "invocationId", NULL };
+ int ret;
+ struct ldb_result *res;
+ struct GUID *invocation_id;
+
+ /* see if we have a cached copy */
+ invocation_id = (struct GUID *)ldb_get_opaque(ldb, "cache.invocation_id");
+ if (invocation_id) {
+ return invocation_id;
+ }
+
+ tmp_ctx = talloc_new(ldb);
+ if (tmp_ctx == NULL) {
+ goto failed;
+ }
+
+ ret = ldb_search(ldb, samdb_ntds_settings_dn(ldb), LDB_SCOPE_BASE, NULL, attrs, &res);
+ if (ret) {
+ goto failed;
+ }
+ talloc_steal(tmp_ctx, res);
+
+ if (res->count != 1) {
+ goto failed;
+ }
+
+ invocation_id = talloc(tmp_ctx, struct GUID);
+ if (!invocation_id) {
+ goto failed;
+ }
+
+ *invocation_id = samdb_result_guid(res->msgs[0], "invocationId");
+
+ /* cache the domain_sid in the ldb */
+ if (ldb_set_opaque(ldb, "cache.invocation_id", invocation_id) != LDB_SUCCESS) {
+ goto failed;
+ }
+
+ talloc_steal(ldb, invocation_id);
+ talloc_free(tmp_ctx);
+
+ return invocation_id;
+
+failed:
+ DEBUG(1,("Failed to find our own NTDS Settings invocationId in the ldb!\n"));
+ talloc_free(tmp_ctx);
+ return NULL;
+}
+
+bool samdb_set_ntds_invocation_id(struct ldb_context *ldb, const struct GUID *invocation_id_in)
+{
+ TALLOC_CTX *tmp_ctx;
+ struct GUID *invocation_id_new;
+ struct GUID *invocation_id_old;
+
+ /* see if we have a cached copy */
+ invocation_id_old = (struct GUID *)ldb_get_opaque(ldb,
+ "cache.invocation_id");
+
+ tmp_ctx = talloc_new(ldb);
+ if (tmp_ctx == NULL) {
+ goto failed;
+ }
+
+ invocation_id_new = talloc(tmp_ctx, struct GUID);
+ if (!invocation_id_new) {
+ goto failed;
+ }
+
+ *invocation_id_new = *invocation_id_in;
+
+ /* cache the domain_sid in the ldb */
+ if (ldb_set_opaque(ldb, "cache.invocation_id", invocation_id_new) != LDB_SUCCESS) {
+ goto failed;
+ }
+
+ talloc_steal(ldb, invocation_id_new);
+ talloc_free(tmp_ctx);
+ talloc_free(invocation_id_old);
+
+ return true;
+
+failed:
+ DEBUG(1,("Failed to set our own cached invocationId in the ldb!\n"));
+ talloc_free(tmp_ctx);
+ return false;
+}
+
+/*
+ work out the ntds settings objectGUID for the current open ldb
+*/
+const struct GUID *samdb_ntds_objectGUID(struct ldb_context *ldb)
+{
+ TALLOC_CTX *tmp_ctx;
+ const char *attrs[] = { "objectGUID", NULL };
+ int ret;
+ struct ldb_result *res;
+ struct GUID *ntds_guid;
+
+ /* see if we have a cached copy */
+ ntds_guid = (struct GUID *)ldb_get_opaque(ldb, "cache.ntds_guid");
+ if (ntds_guid) {
+ return ntds_guid;
+ }
+
+ tmp_ctx = talloc_new(ldb);
+ if (tmp_ctx == NULL) {
+ goto failed;
+ }
+
+ ret = ldb_search(ldb, samdb_ntds_settings_dn(ldb), LDB_SCOPE_BASE, NULL, attrs, &res);
+ if (ret) {
+ goto failed;
+ }
+ talloc_steal(tmp_ctx, res);
+
+ if (res->count != 1) {
+ goto failed;
+ }
+
+ ntds_guid = talloc(tmp_ctx, struct GUID);
+ if (!ntds_guid) {
+ goto failed;
+ }
+
+ *ntds_guid = samdb_result_guid(res->msgs[0], "objectGUID");
+
+ /* cache the domain_sid in the ldb */
+ if (ldb_set_opaque(ldb, "cache.ntds_guid", ntds_guid) != LDB_SUCCESS) {
+ goto failed;
+ }
+
+ talloc_steal(ldb, ntds_guid);
+ talloc_free(tmp_ctx);
+
+ return ntds_guid;
+
+failed:
+ DEBUG(1,("Failed to find our own NTDS Settings objectGUID in the ldb!\n"));
+ talloc_free(tmp_ctx);
+ return NULL;
+}
+
+bool samdb_set_ntds_objectGUID(struct ldb_context *ldb, const struct GUID *ntds_guid_in)
+{
+ TALLOC_CTX *tmp_ctx;
+ struct GUID *ntds_guid_new;
+ struct GUID *ntds_guid_old;
+
+ /* see if we have a cached copy */
+ ntds_guid_old = (struct GUID *)ldb_get_opaque(ldb, "cache.ntds_guid");
+
+ tmp_ctx = talloc_new(ldb);
+ if (tmp_ctx == NULL) {
+ goto failed;
+ }
+
+ ntds_guid_new = talloc(tmp_ctx, struct GUID);
+ if (!ntds_guid_new) {
+ goto failed;
+ }
+
+ *ntds_guid_new = *ntds_guid_in;
+
+ /* cache the domain_sid in the ldb */
+ if (ldb_set_opaque(ldb, "cache.ntds_guid", ntds_guid_new) != LDB_SUCCESS) {
+ goto failed;
+ }
+
+ talloc_steal(ldb, ntds_guid_new);
+ talloc_free(tmp_ctx);
+ talloc_free(ntds_guid_old);
+
+ return true;
+
+failed:
+ DEBUG(1,("Failed to set our own cached invocationId in the ldb!\n"));
+ talloc_free(tmp_ctx);
+ return false;
+}
+
+/*
+ work out the server dn for the current open ldb
+*/
+struct ldb_dn *samdb_server_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx)
+{
+ return ldb_dn_get_parent(mem_ctx, samdb_ntds_settings_dn(ldb));
+}
+
+/*
+ work out the server dn for the current open ldb
+*/
+struct ldb_dn *samdb_server_site_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx)
+{
+ struct ldb_dn *server_dn;
+ struct ldb_dn *server_site_dn;
+
+ server_dn = samdb_server_dn(ldb, mem_ctx);
+ if (!server_dn) return NULL;
+
+ server_site_dn = ldb_dn_get_parent(mem_ctx, server_dn);
+
+ talloc_free(server_dn);
+ return server_site_dn;
+}
+
+/*
+ work out if we are the PDC for the domain of the current open ldb
+*/
+bool samdb_is_pdc(struct ldb_context *ldb)
+{
+ const char *dom_attrs[] = { "fSMORoleOwner", NULL };
+ int ret;
+ struct ldb_result *dom_res;
+ TALLOC_CTX *tmp_ctx;
+ bool is_pdc;
+ struct ldb_dn *pdc;
+
+ tmp_ctx = talloc_new(ldb);
+ if (tmp_ctx == NULL) {
+ DEBUG(1, ("talloc_new failed in samdb_is_pdc"));
+ return false;
+ }
+
+ ret = ldb_search(ldb, ldb_get_default_basedn(ldb), LDB_SCOPE_BASE, NULL, dom_attrs, &dom_res);
+ if (ret) {
+ DEBUG(1,("Searching for fSMORoleOwner in %s failed: %s\n",
+ ldb_dn_get_linearized(ldb_get_default_basedn(ldb)),
+ ldb_errstring(ldb)));
+ goto failed;
+ }
+ talloc_steal(tmp_ctx, dom_res);
+ if (dom_res->count != 1) {
+ goto failed;
+ }
+
+ pdc = ldb_msg_find_attr_as_dn(ldb, tmp_ctx, dom_res->msgs[0], "fSMORoleOwner");
+
+ if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), pdc) == 0) {
+ is_pdc = true;
+ } else {
+ is_pdc = false;
+ }
+
+ talloc_free(tmp_ctx);
+
+ return is_pdc;
+
+failed:
+ DEBUG(1,("Failed to find if we are the PDC for this ldb\n"));
+ talloc_free(tmp_ctx);
+ return false;
+}
+
+/*
+ work out if we are a Global Catalog server for the domain of the current open ldb
+*/
+bool samdb_is_gc(struct ldb_context *ldb)
+{
+ const char *attrs[] = { "options", NULL };
+ int ret, options;
+ struct ldb_result *res;
+ TALLOC_CTX *tmp_ctx;
+
+ tmp_ctx = talloc_new(ldb);
+ if (tmp_ctx == NULL) {
+ DEBUG(1, ("talloc_new failed in samdb_is_pdc"));
+ return false;
+ }
+
+ /* Query cn=ntds settings,.... */
+ ret = ldb_search(ldb, samdb_ntds_settings_dn(ldb), LDB_SCOPE_BASE, NULL, attrs, &res);
+ if (ret) {
+ return false;
+ }
+ if (res->count != 1) {
+ talloc_free(res);
+ return false;
+ }
+
+ options = ldb_msg_find_attr_as_int(res->msgs[0], "options", 0);
+ talloc_free(res);
+ talloc_free(tmp_ctx);
+
+ /* if options attribute has the 0x00000001 flag set, then enable the global catlog */
+ if (options & 0x000000001) {
+ return true;
+ }
+ return false;
+}
+
+/* Find a domain object in the parents of a particular DN. */
+int samdb_search_for_parent_domain(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, struct ldb_dn *dn,
+ struct ldb_dn **parent_dn, const char **errstring)
+{
+ TALLOC_CTX *local_ctx;
+ struct ldb_dn *sdn = dn;
+ struct ldb_result *res = NULL;
+ int ret = 0;
+ const char *attrs[] = { NULL };
+
+ local_ctx = talloc_new(mem_ctx);
+ if (local_ctx == NULL) return LDB_ERR_OPERATIONS_ERROR;
+
+ while ((sdn = ldb_dn_get_parent(local_ctx, sdn))) {
+ ret = ldb_search(ldb, sdn, LDB_SCOPE_BASE,
+ "(|(|(objectClass=domain)(objectClass=builtinDomain))(objectClass=samba4LocalDomain))", attrs, &res);
+ if (ret == LDB_SUCCESS) {
+ talloc_steal(local_ctx, res);
+ if (res->count == 1) {
+ break;
+ }
+ } else {
+ break;
+ }
+ }
+
+ if (ret != LDB_SUCCESS) {
+ *errstring = talloc_asprintf(mem_ctx, "Error searching for parent domain of %s, failed searching for %s: %s",
+ ldb_dn_get_linearized(dn),
+ ldb_dn_get_linearized(sdn),
+ ldb_errstring(ldb));
+ talloc_free(local_ctx);
+ return ret;
+ }
+ if (res->count != 1) {
+ *errstring = talloc_asprintf(mem_ctx, "Invalid dn (%s), not child of a domain object",
+ ldb_dn_get_linearized(dn));
+ talloc_free(local_ctx);
+ return LDB_ERR_CONSTRAINT_VIOLATION;
+ }
+
+ *parent_dn = talloc_steal(mem_ctx, res->msgs[0]->dn);
+ talloc_free(local_ctx);
+ return ret;
+}
+
+/*
+ check that a password is sufficiently complex
+*/
+static bool samdb_password_complexity_ok(const char *pass)
+{
+ return check_password_quality(pass);
+}
+
+
+
+/*
+ set the user password using plaintext, obeying any user or domain
+ password restrictions
+
+ note that this function doesn't actually store the result in the
+ database, it just fills in the "mod" structure with ldb modify
+ elements to setup the correct change when samdb_replace() is
+ called. This allows the caller to combine the change with other
+ changes (as is needed by some of the set user info levels)
+
+ The caller should probably have a transaction wrapping this
+*/
+NTSTATUS samdb_set_password(struct ldb_context *ctx, TALLOC_CTX *mem_ctx,
+ struct ldb_dn *user_dn,
+ struct ldb_dn *domain_dn,
+ struct ldb_message *mod,
+ const char *new_pass,
+ struct samr_Password *lmNewHash,
+ struct samr_Password *ntNewHash,
+ bool user_change,
+ enum samr_RejectReason *reject_reason,
+ struct samr_DomInfo1 **_dominfo)
+{
+ const char * const user_attrs[] = { "userAccountControl", "lmPwdHistory",
+ "ntPwdHistory",
+ "dBCSPwd", "unicodePwd",
+ "objectSid",
+ "pwdLastSet", NULL };
+ const char * const domain_attrs[] = { "pwdProperties", "pwdHistoryLength",
+ "maxPwdAge", "minPwdAge",
+ "minPwdLength", NULL };
+ NTTIME pwdLastSet;
+ int64_t minPwdAge;
+ uint_t minPwdLength, pwdProperties, pwdHistoryLength;
+ uint_t userAccountControl;
+ struct samr_Password *sambaLMPwdHistory, *sambaNTPwdHistory, *lmPwdHash, *ntPwdHash;
+ struct samr_Password local_lmNewHash, local_ntNewHash;
+ int sambaLMPwdHistory_len, sambaNTPwdHistory_len;
+ struct dom_sid *domain_sid;
+ struct ldb_message **res;
+ bool restrictions;
+ int count;
+ time_t now = time(NULL);
+ NTTIME now_nt;
+ int i;
+
+ /* we need to know the time to compute password age */
+ unix_to_nt_time(&now_nt, now);
+
+ /* pull all the user parameters */
+ count = gendb_search_dn(ctx, mem_ctx, user_dn, &res, user_attrs);
+ if (count != 1) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+ userAccountControl = samdb_result_uint(res[0], "userAccountControl", 0);
+ sambaLMPwdHistory_len = samdb_result_hashes(mem_ctx, res[0],
+ "lmPwdHistory", &sambaLMPwdHistory);
+ sambaNTPwdHistory_len = samdb_result_hashes(mem_ctx, res[0],
+ "ntPwdHistory", &sambaNTPwdHistory);
+ lmPwdHash = samdb_result_hash(mem_ctx, res[0], "dBCSPwd");
+ ntPwdHash = samdb_result_hash(mem_ctx, res[0], "unicodePwd");
+ pwdLastSet = samdb_result_uint64(res[0], "pwdLastSet", 0);
+
+ /* Only non-trust accounts have restrictions (possibly this
+ * test is the wrong way around, but I like to be restrictive
+ * if possible */
+ restrictions = !(userAccountControl & (UF_INTERDOMAIN_TRUST_ACCOUNT
+ |UF_WORKSTATION_TRUST_ACCOUNT
+ |UF_SERVER_TRUST_ACCOUNT));
+
+ if (domain_dn) {
+ /* pull the domain parameters */
+ count = gendb_search_dn(ctx, mem_ctx, domain_dn, &res, domain_attrs);
+ if (count != 1) {
+ DEBUG(2, ("samdb_set_password: Domain DN %s is invalid, for user %s\n",
+ ldb_dn_get_linearized(domain_dn),
+ ldb_dn_get_linearized(user_dn)));
+ return NT_STATUS_NO_SUCH_DOMAIN;
+ }
+ } else {
+ /* work out the domain sid, and pull the domain from there */
+ domain_sid = samdb_result_sid_prefix(mem_ctx, res[0], "objectSid");
+ if (domain_sid == NULL) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ count = gendb_search(ctx, mem_ctx, NULL, &res, domain_attrs,
+ "(objectSid=%s)",
+ ldap_encode_ndr_dom_sid(mem_ctx, domain_sid));
+ if (count != 1) {
+ DEBUG(2, ("samdb_set_password: Could not find domain to match SID: %s, for user %s\n",
+ dom_sid_string(mem_ctx, domain_sid),
+ ldb_dn_get_linearized(user_dn)));
+ return NT_STATUS_NO_SUCH_DOMAIN;
+ }
+ }
+
+ pwdProperties = samdb_result_uint(res[0], "pwdProperties", 0);
+ pwdHistoryLength = samdb_result_uint(res[0], "pwdHistoryLength", 0);
+ minPwdLength = samdb_result_uint(res[0], "minPwdLength", 0);
+ minPwdAge = samdb_result_int64(res[0], "minPwdAge", 0);
+
+ if (_dominfo) {
+ struct samr_DomInfo1 *dominfo;
+ /* on failure we need to fill in the reject reasons */
+ dominfo = talloc(mem_ctx, struct samr_DomInfo1);
+ if (dominfo == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ dominfo->min_password_length = minPwdLength;
+ dominfo->password_properties = pwdProperties;
+ dominfo->password_history_length = pwdHistoryLength;
+ dominfo->max_password_age = minPwdAge;
+ dominfo->min_password_age = minPwdAge;
+ *_dominfo = dominfo;
+ }
+
+ if (restrictions && new_pass) {
+
+ /* check the various password restrictions */
+ if (restrictions && minPwdLength > strlen_m(new_pass)) {
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_TOO_SHORT;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+
+ /* possibly check password complexity */
+ if (restrictions && pwdProperties & DOMAIN_PASSWORD_COMPLEX &&
+ !samdb_password_complexity_ok(new_pass)) {
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_COMPLEXITY;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+
+ /* compute the new nt and lm hashes */
+ if (E_deshash(new_pass, local_lmNewHash.hash)) {
+ lmNewHash = &local_lmNewHash;
+ }
+ if (!E_md4hash(new_pass, local_ntNewHash.hash)) {
+ /* If we can't convert this password to UCS2, then we should not accept it */
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_OTHER;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+ ntNewHash = &local_ntNewHash;
+ }
+
+ if (user_change) {
+ /* are all password changes disallowed? */
+ if (pwdProperties & DOMAIN_REFUSE_PASSWORD_CHANGE) {
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_OTHER;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+
+ /* can this user change password? */
+ if (userAccountControl & UF_PASSWD_CANT_CHANGE) {
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_OTHER;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+
+ /* yes, this is a minus. The ages are in negative 100nsec units! */
+ if (pwdLastSet - minPwdAge > now_nt) {
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_OTHER;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+
+ /* check the immediately past password */
+ if (pwdHistoryLength > 0) {
+ if (lmNewHash && lmPwdHash && memcmp(lmNewHash->hash, lmPwdHash->hash, 16) == 0) {
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_IN_HISTORY;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+ if (ntNewHash && ntPwdHash && memcmp(ntNewHash->hash, ntPwdHash->hash, 16) == 0) {
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_IN_HISTORY;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+ }
+
+ /* check the password history */
+ sambaLMPwdHistory_len = MIN(sambaLMPwdHistory_len, pwdHistoryLength);
+ sambaNTPwdHistory_len = MIN(sambaNTPwdHistory_len, pwdHistoryLength);
+
+ for (i=0; lmNewHash && i<sambaLMPwdHistory_len;i++) {
+ if (memcmp(lmNewHash->hash, sambaLMPwdHistory[i].hash, 16) == 0) {
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_IN_HISTORY;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+ }
+ for (i=0; ntNewHash && i<sambaNTPwdHistory_len;i++) {
+ if (memcmp(ntNewHash->hash, sambaNTPwdHistory[i].hash, 16) == 0) {
+ if (reject_reason) {
+ *reject_reason = SAMR_REJECT_IN_HISTORY;
+ }
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+ }
+ }
+
+#define CHECK_RET(x) do { if (x != 0) return NT_STATUS_NO_MEMORY; } while(0)
+
+ /* the password is acceptable. Start forming the new fields */
+ if (new_pass) {
+ /* if we know the cleartext, then only set it.
+ * Modules in ldb will set all the appropriate
+ * hashes */
+ CHECK_RET(samdb_msg_add_string(ctx, mem_ctx, mod,
+ "userPassword", new_pass));
+ } else {
+ /* We don't have the cleartext, so delete the old one
+ * and set what we have of the hashes */
+ CHECK_RET(samdb_msg_add_delete(ctx, mem_ctx, mod, "userPassword"));
+
+ if (lmNewHash) {
+ CHECK_RET(samdb_msg_add_hash(ctx, mem_ctx, mod, "dBCSPwd", lmNewHash));
+ } else {
+ CHECK_RET(samdb_msg_add_delete(ctx, mem_ctx, mod, "dBCSPwd"));
+ }
+
+ if (ntNewHash) {
+ CHECK_RET(samdb_msg_add_hash(ctx, mem_ctx, mod, "unicodePwd", ntNewHash));
+ } else {
+ CHECK_RET(samdb_msg_add_delete(ctx, mem_ctx, mod, "unicodePwd"));
+ }
+ }
+
+ return NT_STATUS_OK;
+}
+
+
+/*
+ set the user password using plaintext, obeying any user or domain
+ password restrictions
+
+ This wrapper function takes a SID as input, rather than a user DN,
+ and actually performs the password change
+
+*/
+NTSTATUS samdb_set_password_sid(struct ldb_context *ctx, TALLOC_CTX *mem_ctx,
+ const struct dom_sid *user_sid,
+ const char *new_pass,
+ struct samr_Password *lmNewHash,
+ struct samr_Password *ntNewHash,
+ bool user_change,
+ enum samr_RejectReason *reject_reason,
+ struct samr_DomInfo1 **_dominfo)
+{
+ NTSTATUS nt_status;
+ struct ldb_dn *user_dn;
+ struct ldb_message *msg;
+ int ret;
+
+ ret = ldb_transaction_start(ctx);
+ if (ret) {
+ DEBUG(1, ("Failed to start transaction: %s\n", ldb_errstring(ctx)));
+ return NT_STATUS_TRANSACTION_ABORTED;
+ }
+
+ user_dn = samdb_search_dn(ctx, mem_ctx, NULL,
+ "(&(objectSid=%s)(objectClass=user))",
+ ldap_encode_ndr_dom_sid(mem_ctx, user_sid));
+ if (!user_dn) {
+ ldb_transaction_cancel(ctx);
+ DEBUG(3, ("samdb_set_password_sid: SID %s not found in samdb, returning NO_SUCH_USER\n",
+ dom_sid_string(mem_ctx, user_sid)));
+ return NT_STATUS_NO_SUCH_USER;
+ }
+
+ msg = ldb_msg_new(mem_ctx);
+ if (msg == NULL) {
+ ldb_transaction_cancel(ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ msg->dn = ldb_dn_copy(msg, user_dn);
+ if (!msg->dn) {
+ ldb_transaction_cancel(ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ nt_status = samdb_set_password(ctx, mem_ctx,
+ user_dn, NULL,
+ msg, new_pass,
+ lmNewHash, ntNewHash,
+ user_change, /* This is a password set, not change */
+ reject_reason, _dominfo);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ ldb_transaction_cancel(ctx);
+ return nt_status;
+ }
+
+ /* modify the samdb record */
+ ret = samdb_replace(ctx, mem_ctx, msg);
+ if (ret != 0) {
+ ldb_transaction_cancel(ctx);
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ ret = ldb_transaction_commit(ctx);
+ if (ret != 0) {
+ DEBUG(0,("Failed to commit transaction to change password on %s: %s\n",
+ ldb_dn_get_linearized(msg->dn),
+ ldb_errstring(ctx)));
+ return NT_STATUS_TRANSACTION_ABORTED;
+ }
+ return NT_STATUS_OK;
+}
+
+
+
+NTSTATUS samdb_create_foreign_security_principal(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
+ struct dom_sid *sid, struct ldb_dn **ret_dn)
+{
+ struct ldb_message *msg;
+ struct ldb_dn *basedn;
+ const char *sidstr;
+ int ret;
+
+ sidstr = dom_sid_string(mem_ctx, sid);
+ NT_STATUS_HAVE_NO_MEMORY(sidstr);
+
+ /* We might have to create a ForeignSecurityPrincipal, even if this user
+ * is in our own domain */
+
+ msg = ldb_msg_new(mem_ctx);
+ if (msg == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* TODO: Hmmm. This feels wrong. How do I find the base dn to
+ * put the ForeignSecurityPrincipals? d_state->domain_dn does
+ * not work, this is wrong for the Builtin domain, there's no
+ * cn=For...,cn=Builtin,dc={BASEDN}. -- vl
+ */
+
+ basedn = samdb_search_dn(sam_ctx, mem_ctx, NULL,
+ "(&(objectClass=container)(cn=ForeignSecurityPrincipals))");
+
+ if (basedn == NULL) {
+ DEBUG(0, ("Failed to find DN for "
+ "ForeignSecurityPrincipal container\n"));
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ /* add core elements to the ldb_message for the alias */
+ msg->dn = ldb_dn_copy(mem_ctx, basedn);
+ if ( ! ldb_dn_add_child_fmt(msg->dn, "CN=%s", sidstr))
+ return NT_STATUS_NO_MEMORY;
+
+ samdb_msg_add_string(sam_ctx, mem_ctx, msg,
+ "objectClass",
+ "foreignSecurityPrincipal");
+
+ /* create the alias */
+ ret = ldb_add(sam_ctx, msg);
+ if (ret != 0) {
+ DEBUG(0,("Failed to create foreignSecurityPrincipal "
+ "record %s: %s\n",
+ ldb_dn_get_linearized(msg->dn),
+ ldb_errstring(sam_ctx)));
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+ *ret_dn = msg->dn;
+ return NT_STATUS_OK;
+}
+
+
+/*
+ Find the DN of a domain, assuming it to be a dotted.dns name
+*/
+
+struct ldb_dn *samdb_dns_domain_to_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char *dns_domain)
+{
+ int i;
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ const char *binary_encoded;
+ const char **split_realm;
+ struct ldb_dn *dn;
+
+ if (!tmp_ctx) {
+ return NULL;
+ }
+
+ split_realm = str_list_make(tmp_ctx, dns_domain, ".");
+ if (!split_realm) {
+ talloc_free(tmp_ctx);
+ return NULL;
+ }
+ dn = ldb_dn_new(mem_ctx, ldb, NULL);
+ for (i=0; split_realm[i]; i++) {
+ binary_encoded = ldb_binary_encode_string(tmp_ctx, split_realm[i]);
+ if (!ldb_dn_add_base_fmt(dn, "dc=%s", binary_encoded)) {
+ DEBUG(2, ("Failed to add dc=%s element to DN %s\n",
+ binary_encoded, ldb_dn_get_linearized(dn)));
+ talloc_free(tmp_ctx);
+ return NULL;
+ }
+ }
+ if (!ldb_dn_validate(dn)) {
+ DEBUG(2, ("Failed to validated DN %s\n",
+ ldb_dn_get_linearized(dn)));
+ return NULL;
+ }
+ return dn;
+}
+/*
+ Find the DN of a domain, be it the netbios or DNS name
+*/
+
+struct ldb_dn *samdb_domain_to_dn(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
+ const char *domain_name)
+{
+ const char * const domain_ref_attrs[] = {
+ "ncName", NULL
+ };
+ const char * const domain_ref2_attrs[] = {
+ NULL
+ };
+ struct ldb_result *res_domain_ref;
+ char *escaped_domain = ldb_binary_encode_string(mem_ctx, domain_name);
+ /* find the domain's DN */
+ int ret_domain = ldb_search_exp_fmt(ldb, mem_ctx,
+ &res_domain_ref,
+ samdb_partitions_dn(ldb, mem_ctx),
+ LDB_SCOPE_ONELEVEL,
+ domain_ref_attrs,
+ "(&(nETBIOSName=%s)(objectclass=crossRef))",
+ escaped_domain);
+ if (ret_domain != 0) {
+ return NULL;
+ }
+
+ if (res_domain_ref->count == 0) {
+ ret_domain = ldb_search_exp_fmt(ldb, mem_ctx,
+ &res_domain_ref,
+ samdb_dns_domain_to_dn(ldb, mem_ctx, domain_name),
+ LDB_SCOPE_BASE,
+ domain_ref2_attrs,
+ "(objectclass=domain)");
+ if (ret_domain != 0) {
+ return NULL;
+ }
+
+ if (res_domain_ref->count == 1) {
+ return res_domain_ref->msgs[0]->dn;
+ }
+ return NULL;
+ }
+
+ if (res_domain_ref->count > 1) {
+ DEBUG(0,("Found %d records matching domain [%s]\n",
+ ret_domain, domain_name));
+ return NULL;
+ }
+
+ return samdb_result_dn(ldb, mem_ctx, res_domain_ref->msgs[0], "nCName", NULL);
+
+}
generated by cgit (git 2.34.1) at 2025-02-11 14:32:23 +0000