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authorStefan Metzmacher <metze@samba.org>2004-12-08 08:21:35 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 13:06:26 -0500
commit8d0c3eefbc49bffdf73d90a1d1f89db4f7977dab (patch)
treeaeb94029726e83c094c631ff74504b034c2c98cc /source4/dsdb/samdb
parent071439c1e1c5a7e6deb7866ff9716977e527e826 (diff)
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r4096: move the samdb code to source/dsdb/
the idea is to have a directory service db layer which will be used by the ldap server, samr server, drsuapi server authentification... I plan to make different implementations of this interface possible - current default will be the current samdb code with sam.ldb - a compat implementation for samba3 (if someone wants to write one) - a new dsdb implementation which: - understands naming contexts (directory parrtitions) - do schema and acl checking checking - maintain objectGUID, timestamps and USN number, maybe linked attributes ('member' and 'memberOf' attributes) - store metadata on a attribute=value combination... metze (This used to be commit 893a8b8bca2f020fbbe6f469aaa8dd4478249eb8)
Diffstat (limited to 'source4/dsdb/samdb')
-rw-r--r--source4/dsdb/samdb/samdb.c894
1 files changed, 894 insertions, 0 deletions
diff --git a/source4/dsdb/samdb/samdb.c b/source4/dsdb/samdb/samdb.c
new file mode 100644
index 0000000000..7501d94ae6
--- /dev/null
+++ b/source4/dsdb/samdb/samdb.c
@@ -0,0 +1,894 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ interface functions for the sam database
+
+ 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 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "librpc/gen_ndr/ndr_netlogon.h"
+#include "lib/ldb/include/ldb.h"
+
+/*
+ connect to the SAM database
+ return an opaque context pointer on success, or NULL on failure
+ */
+void *samdb_connect(TALLOC_CTX *mem_ctx)
+{
+ return ldb_wrap_connect(mem_ctx, lp_sam_url(), 0, NULL);
+}
+
+/*
+ search the sam for the specified attributes - varargs variant
+*/
+int samdb_search(void *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *basedn,
+ struct ldb_message ***res,
+ const char * const *attrs,
+ const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ va_list ap;
+ int count;
+
+ va_start(ap, format);
+ count = gendb_search_v(sam_ctx->ldb, mem_ctx, basedn, res, attrs, format, ap);
+ va_end(ap);
+
+ return count;
+}
+
+/*
+ free up a search result
+*/
+int samdb_search_free(void *ctx,
+ TALLOC_CTX *mem_ctx, struct ldb_message **res)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+ return ldb_search_free(sam_ctx->ldb, res);
+}
+
+/*
+ search the sam for a single string attribute in exactly 1 record
+*/
+const char *samdb_search_string_v(void *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *basedn,
+ const char *attr_name,
+ const char *format, va_list ap) _PRINTF_ATTRIBUTE(5,0)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ int count;
+ const char * const attrs[2] = { attr_name, NULL };
+ struct ldb_message **res = NULL;
+
+ count = gendb_search_v(sam_ctx->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) {
+ samdb_search_free(ctx, mem_ctx, 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(void *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *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(ctx, mem_ctx, basedn, attr_name, format, ap);
+ va_end(ap);
+
+ return str;
+}
+
+/*
+ return the count of the number of records in the sam matching the query
+*/
+int samdb_search_count(void *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *basedn,
+ const char *format, ...) _PRINTF_ATTRIBUTE(4,5)
+{
+ struct ldb_wrap *samdb_ctx = ctx;
+ va_list ap;
+ struct ldb_message **res;
+ const char * const attrs[] = { NULL };
+ int ret;
+
+ va_start(ap, format);
+ ret = gendb_search_v(samdb_ctx->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(void *ctx,
+ TALLOC_CTX *mem_ctx,
+ uint_t default_value,
+ const char *basedn,
+ const char *attr_name,
+ const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
+{
+ struct ldb_wrap *samdb_ctx = ctx;
+ va_list ap;
+ int count;
+ struct ldb_message **res;
+ const char * const attrs[2] = { attr_name, NULL };
+
+ va_start(ap, format);
+ count = gendb_search_v(samdb_ctx->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(void *ctx,
+ TALLOC_CTX *mem_ctx,
+ int64_t default_value,
+ const char *basedn,
+ const char *attr_name,
+ const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
+{
+ struct ldb_wrap *samdb_ctx = ctx;
+ va_list ap;
+ int count;
+ struct ldb_message **res;
+ const char * const attrs[2] = { attr_name, NULL };
+
+ va_start(ap, format);
+ count = gendb_search_v(samdb_ctx->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(void *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *basedn,
+ const char ***strs,
+ const char *attr_name,
+ const char *format, ...) _PRINTF_ATTRIBUTE(6,7)
+{
+ struct ldb_wrap *samdb_ctx = ctx;
+ va_list ap;
+ int count, i;
+ const char * const attrs[2] = { attr_name, NULL };
+ struct ldb_message **res = NULL;
+
+ va_start(ap, format);
+ count = gendb_search_v(samdb_ctx->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));
+ samdb_search_free(ctx, mem_ctx, res);
+ return -1;
+ }
+ }
+
+ *strs = talloc_array_p(mem_ctx, const char *, count+1);
+ if (! *strs) {
+ samdb_search_free(ctx, mem_ctx, 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(struct ldb_message *msg, const char *attr, uint_t default_value)
+{
+ return ldb_msg_find_uint(msg, attr, default_value);
+}
+
+/*
+ pull a (signed) int64 from a result set.
+*/
+int64_t samdb_result_int64(struct ldb_message *msg, const char *attr, int64_t default_value)
+{
+ return ldb_msg_find_int64(msg, attr, default_value);
+}
+
+/*
+ pull a string from a result set.
+*/
+const char *samdb_result_string(struct ldb_message *msg, const char *attr,
+ const char *default_value)
+{
+ return ldb_msg_find_string(msg, attr, default_value);
+}
+
+/*
+ pull a rid from a objectSid in a result set.
+*/
+uint32_t samdb_result_rid_from_sid(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr, uint32_t default_value)
+{
+ struct dom_sid *sid;
+ const char *sidstr = ldb_msg_find_string(msg, attr, NULL);
+ if (!sidstr) return default_value;
+
+ sid = dom_sid_parse_talloc(mem_ctx, sidstr);
+ if (!sid) return default_value;
+
+ return sid->sub_auths[sid->num_auths-1];
+}
+
+/*
+ pull a dom_sid structure from a objectSid in a result set.
+*/
+struct dom_sid *samdb_result_dom_sid(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr)
+{
+ const char *sidstr = ldb_msg_find_string(msg, attr, NULL);
+ if (!sidstr) return NULL;
+
+ return dom_sid_parse_talloc(mem_ctx, sidstr);
+}
+
+/*
+ pull a guid structure from a objectGUID in a result set.
+*/
+struct GUID samdb_result_guid(struct ldb_message *msg, const char *attr)
+{
+ NTSTATUS status;
+ struct GUID guid;
+ const char *guidstr = ldb_msg_find_string(msg, attr, NULL);
+
+ ZERO_STRUCT(guid);
+
+ if (!guidstr) return guid;
+
+ status = GUID_from_string(guidstr, &guid);
+ if (!NT_STATUS_IS_OK(status)) {
+ ZERO_STRUCT(guid);
+ 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
+*/
+const char *samdb_result_sid_prefix(TALLOC_CTX *mem_ctx, 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 dom_sid_string(mem_ctx, sid);
+}
+
+/*
+ pull a NTTIME in a result set.
+*/
+NTTIME samdb_result_nttime(struct ldb_message *msg, const char *attr, const char *default_value)
+{
+ const char *str = ldb_msg_find_string(msg, attr, default_value);
+ return nttime_from_string(str);
+}
+
+/*
+ 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_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(void *ctx, TALLOC_CTX *mem_ctx,
+ const char *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(ctx, mem_ctx, 0, NULL,
+ "minPwdAge", "dn=%s", domain_dn);
+
+ /* 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 and the
+ domain password settings
+*/
+NTTIME samdb_result_force_password_change(void *ctx, TALLOC_CTX *mem_ctx,
+ const char *domain_dn,
+ struct ldb_message *msg,
+ const char *attr)
+{
+ uint64_t attr_time = samdb_result_uint64(msg, attr, 0);
+ int64_t maxPwdAge;
+
+ if (attr_time == 0) {
+ return 0;
+ }
+
+ maxPwdAge = samdb_search_int64(ctx, mem_ctx, 0, NULL, "maxPwdAge", "dn=%s", domain_dn);
+ if (maxPwdAge == 0) {
+ return 0;
+ } else {
+ attr_time -= maxPwdAge;
+ }
+
+ return attr_time;
+}
+
+/*
+ pull a samr_Password structutre from a result set.
+*/
+struct samr_Password samdb_result_hash(struct ldb_message *msg, const char *attr)
+{
+ struct samr_Password hash;
+ const struct ldb_val *val = ldb_msg_find_ldb_val(msg, attr);
+ ZERO_STRUCT(hash);
+ if (val) {
+ 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_p(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)
+{
+
+ const char *unicodePwd = samdb_result_string(msg, "unicodePwd", NULL);
+
+ struct samr_Password *lmPwdHash, *ntPwdHash;
+ if (unicodePwd) {
+ if (nt_pwd) {
+ ntPwdHash = talloc_p(mem_ctx, struct samr_Password);
+ if (!ntPwdHash) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ E_md4hash(unicodePwd, ntPwdHash->hash);
+ *nt_pwd = ntPwdHash;
+ }
+
+ if (lm_pwd) {
+ BOOL lm_hash_ok;
+
+ lmPwdHash = talloc_p(mem_ctx, struct samr_Password);
+ if (!lmPwdHash) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* compute the new nt and lm hashes */
+ lm_hash_ok = E_deshash(unicodePwd, lmPwdHash->hash);
+
+ if (lm_hash_ok) {
+ *lm_pwd = lmPwdHash;
+ } else {
+ *lm_pwd = NULL;
+ }
+ }
+ } else {
+ if (nt_pwd) {
+ int num_nt;
+ num_nt = samdb_result_hashes(mem_ctx, msg, "ntPwdHash", &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, "lmPwdHash", &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.bitmap = talloc_array_p(mem_ctx, uint8, units_per_week);
+ if (!hours.bitmap) {
+ return hours;
+ }
+ hours.units_per_week = units_per_week;
+ memset(hours.bitmap, 0xFF, units_per_week);
+ if (val) {
+ memcpy(hours.bitmap, val->data, MIN(val->length, units_per_week));
+ }
+ return hours;
+}
+
+/*
+ pull a set of account_flags from a result set.
+*/
+uint16_t samdb_result_acct_flags(struct ldb_message *msg, const char *attr)
+{
+ uint_t userAccountControl = ldb_msg_find_uint(msg, attr, 0);
+ return samdb_uf2acb(userAccountControl);
+}
+
+/*
+ copy from a template record to a message
+*/
+int samdb_copy_template(void *ctx, TALLOC_CTX *mem_ctx,
+ struct ldb_message *msg, const char *expression)
+{
+ struct ldb_message **res, *t;
+ int ret, i, j;
+
+
+ /* pull the template record */
+ ret = samdb_search(ctx, mem_ctx, NULL, &res, NULL, "%s", expression);
+ if (ret != 1) {
+ DEBUG(1,("samdb: ERROR: template '%s' matched %d records\n",
+ expression, ret));
+ return -1;
+ }
+ t = res[0];
+
+ for (i=0;i<t->num_elements;i++) {
+ struct ldb_message_element *el = &t->elements[i];
+ /* some elements should not be copied from the template */
+ if (strcasecmp(el->name, "cn") == 0 ||
+ strcasecmp(el->name, "name") == 0 ||
+ strcasecmp(el->name, "sAMAccountName") == 0) {
+ continue;
+ }
+ for (j=0;j<el->num_values;j++) {
+ if (strcasecmp(el->name, "objectClass") == 0 &&
+ (strcasecmp((char *)el->values[j].data, "Template") == 0 ||
+ strcasecmp((char *)el->values[j].data, "userTemplate") == 0 ||
+ strcasecmp((char *)el->values[j].data, "groupTemplate") == 0)) {
+ continue;
+ }
+ samdb_msg_add_string(ctx, mem_ctx, msg, el->name,
+ (char *)el->values[j].data);
+ }
+ }
+
+ return 0;
+}
+
+
+/*
+ allocate a new id, attempting to do it atomically
+ return 0 on failure, the id on success
+*/
+static NTSTATUS _samdb_allocate_next_id(void *ctx, TALLOC_CTX *mem_ctx, const char *dn,
+ const char *attr, uint32_t *id)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ struct ldb_message msg;
+ int ret;
+ const char *str;
+ struct ldb_val vals[2];
+ struct ldb_message_element els[2];
+
+ str = samdb_search_string(ctx, mem_ctx, NULL, attr, "dn=%s", dn);
+ if (!str) {
+ DEBUG(1,("id not found at %s %s\n", dn, attr));
+ return NT_STATUS_OBJECT_NAME_INVALID;
+ }
+
+ *id = strtol(str, NULL, 0);
+ if ((*id)+1 == 0) {
+ /* out of IDs ! */
+ return NT_STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* we do a delete and add as a single operation. That prevents
+ a race */
+ ZERO_STRUCT(msg);
+ msg.dn = talloc_strdup(mem_ctx, dn);
+ if (!msg.dn) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ msg.num_elements = 2;
+ msg.elements = els;
+
+ els[0].num_values = 1;
+ els[0].values = &vals[0];
+ els[0].flags = LDB_FLAG_MOD_DELETE;
+ els[0].name = talloc_strdup(mem_ctx, attr);
+ if (!els[0].name) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ els[1].num_values = 1;
+ els[1].values = &vals[1];
+ els[1].flags = LDB_FLAG_MOD_ADD;
+ els[1].name = els[0].name;
+
+ vals[0].data = talloc_asprintf(mem_ctx, "%u", *id);
+ if (!vals[0].data) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ vals[0].length = strlen(vals[0].data);
+
+ vals[1].data = talloc_asprintf(mem_ctx, "%u", (*id)+1);
+ if (!vals[1].data) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ vals[1].length = strlen(vals[1].data);
+
+ ret = ldb_modify(sam_ctx->ldb, &msg);
+ if (ret != 0) {
+ return NT_STATUS_UNEXPECTED_IO_ERROR;
+ }
+
+ (*id)++;
+
+ return NT_STATUS_OK;
+}
+
+/*
+ allocate a new id, attempting to do it atomically
+ return 0 on failure, the id on success
+*/
+NTSTATUS samdb_allocate_next_id(void *ctx, TALLOC_CTX *mem_ctx, const char *dn, const char *attr,
+ uint32_t *id)
+{
+ int tries = 10;
+ NTSTATUS status;
+
+ /* we need to try multiple times to cope with two account
+ creations at the same time */
+ while (tries--) {
+ status = _samdb_allocate_next_id(ctx, mem_ctx, dn, attr, id);
+ if (!NT_STATUS_EQUAL(NT_STATUS_UNEXPECTED_IO_ERROR, status)) {
+ break;
+ }
+ }
+
+ if (NT_STATUS_EQUAL(NT_STATUS_UNEXPECTED_IO_ERROR, status)) {
+ DEBUG(1,("Failed to increment id %s at %s\n", attr, dn));
+ }
+
+ return status;
+}
+
+
+/*
+ add a string element to a message
+*/
+int samdb_msg_add_string(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, const char *str)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ char *s = talloc_strdup(mem_ctx, str);
+ char *a = talloc_strdup(mem_ctx, attr_name);
+ if (s == NULL || a == NULL) {
+ return -1;
+ }
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+ return ldb_msg_add_string(sam_ctx->ldb, msg, a, s);
+}
+
+/*
+ add a delete element operation to a message
+*/
+int samdb_msg_add_delete(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ char *a = talloc_strdup(mem_ctx, attr_name);
+ if (a == NULL) {
+ return -1;
+ }
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+ /* we use an empty replace rather than a delete, as it allows for
+ samdb_replace() to be used everywhere */
+ return ldb_msg_add_empty(sam_ctx->ldb, msg, a, LDB_FLAG_MOD_REPLACE);
+}
+
+/*
+ add a uint_t element to a message
+*/
+int samdb_msg_add_uint(void *ctx, 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(ctx, mem_ctx, msg, attr_name, s);
+}
+
+/*
+ add a (signed) int64_t element to a message
+*/
+int samdb_msg_add_int64(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, int64_t v)
+{
+ const char *s = talloc_asprintf(mem_ctx, "%lld", v);
+ return samdb_msg_add_string(ctx, mem_ctx, msg, attr_name, s);
+}
+
+/*
+ add a uint64_t element to a message
+*/
+int samdb_msg_add_uint64(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, uint64_t v)
+{
+ const char *s = talloc_asprintf(mem_ctx, "%llu", v);
+ return samdb_msg_add_string(ctx, mem_ctx, msg, attr_name, s);
+}
+
+/*
+ add a samr_Password element to a message
+*/
+int samdb_msg_add_hash(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, struct samr_Password hash)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ struct ldb_val val;
+ val.data = talloc(mem_ctx, 16);
+ val.length = 16;
+ if (!val.data) {
+ return -1;
+ }
+ memcpy(val.data, hash.hash, 16);
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+ return ldb_msg_add_value(sam_ctx->ldb, msg, attr_name, &val);
+}
+
+/*
+ add a samr_Password array to a message
+*/
+int samdb_msg_add_hashes(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, struct samr_Password *hashes, uint_t count)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ struct ldb_val val;
+ int i;
+ val.data = talloc(mem_ctx, count*16);
+ 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);
+ }
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+ return ldb_msg_add_value(sam_ctx->ldb, msg, attr_name, &val);
+}
+
+/*
+ add a acct_flags element to a message
+*/
+int samdb_msg_add_acct_flags(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, uint32_t v)
+{
+ return samdb_msg_add_uint(ctx, mem_ctx, msg, attr_name, samdb_acb2uf(v));
+}
+
+/*
+ add a logon_hours element to a message
+*/
+int samdb_msg_add_logon_hours(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, struct samr_LogonHours *hours)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ struct ldb_val val;
+ val.length = hours->units_per_week / 8;
+ val.data = hours->bitmap;
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+ return ldb_msg_add_value(sam_ctx->ldb, msg, attr_name, &val);
+}
+
+/*
+ set a string element in a message
+*/
+int samdb_msg_set_string(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, const char *str)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+ struct ldb_message_element *el;
+
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+
+ el = ldb_msg_find_element(msg, attr_name);
+ if (el) {
+ el->num_values = 0;
+ }
+ return samdb_msg_add_string(ctx, mem_ctx, msg, attr_name, str);
+}
+
+/*
+ set a ldaptime element in a message
+*/
+int samdb_msg_set_ldaptime(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+ const char *attr_name, time_t t)
+{
+ char *str = ldap_timestring(mem_ctx, t);
+ if (!str) {
+ return -1;
+ }
+ return samdb_msg_set_string(ctx, mem_ctx, msg, attr_name, str);
+}
+
+/*
+ add a record
+*/
+int samdb_add(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+ return ldb_add(sam_ctx->ldb, msg);
+}
+
+/*
+ delete a record
+*/
+int samdb_delete(void *ctx, TALLOC_CTX *mem_ctx, const char *dn)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+ return ldb_delete(sam_ctx->ldb, dn);
+}
+
+/*
+ modify a record
+*/
+int samdb_modify(void *ctx, TALLOC_CTX *mem_ctx, struct ldb_message *msg)
+{
+ struct ldb_wrap *sam_ctx = ctx;
+
+ ldb_set_alloc(sam_ctx->ldb, talloc_realloc_fn, mem_ctx);
+ return ldb_modify(sam_ctx->ldb, msg);
+}
+
+/*
+ replace elements in a record
+*/
+int samdb_replace(void *ctx, 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 samdb_modify(ctx, mem_ctx, 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;
+}