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From 2e85b015d8dd231094a09eab69b86e8b6fcc8b2b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabiano=20Fid=C3=AAncio?= <fidencio@redhat.com>
Date: Fri, 24 Mar 2017 15:29:23 +0100
Subject: [PATCH 49/97] SYSDB: Add methods to deal with the domain's resolution
order
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In the following-up patches those newly introduced methods will be used
to deal with the domainResolutionOrder attribute.
The sysdb_update_domain_resolution_order() method is purposely not
checking whether a value has changed or not before writing to sysdb and
while may not be optimal, the readability of the code has increased a
lot by keeping it as simple as possible.
Tests for these new methods are part of the next commit.
Related:
https://pagure.io/SSSD/sssd/issue/3001
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Sumit Bose <sbose@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
---
Makefile.am | 2 +
src/db/sysdb.h | 2 +
src/db/sysdb_domain_resolution_order.c | 169 +++++++++++++++++++++++++++++++++
src/db/sysdb_domain_resolution_order.h | 37 ++++++++
4 files changed, 210 insertions(+)
create mode 100644 src/db/sysdb_domain_resolution_order.c
create mode 100644 src/db/sysdb_domain_resolution_order.h
diff --git a/Makefile.am b/Makefile.am
index 359feddef298b0013c726409b7ba8b86504abf09..8052150be32d89813764e9bc436dfcb211a738d6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -736,6 +736,7 @@ dist_noinst_HEADERS = \
src/db/sysdb_private.h \
src/db/sysdb_services.h \
src/db/sysdb_ssh.h \
+ src/db/sysdb_domain_resolution_order.h \
src/confdb/confdb.h \
src/confdb/confdb_private.h \
src/confdb/confdb_setup.h \
@@ -995,6 +996,7 @@ libsss_util_la_SOURCES = \
src/db/sysdb_idmap.c \
src/db/sysdb_gpo.c \
src/db/sysdb_certmap.c \
+ src/db/sysdb_domain_resolution_order.c \
src/monitor/monitor_sbus.c \
src/providers/dp_auth_util.c \
src/providers/dp_pam_data_util.c \
diff --git a/src/db/sysdb.h b/src/db/sysdb.h
index 6762b51bee02911fb97d5d393fad2495504ee5ad..42d2857ed7765c17e7d84b0da93ed07758fbe012 100644
--- a/src/db/sysdb.h
+++ b/src/db/sysdb.h
@@ -184,6 +184,8 @@
#define SYSDB_OVERRIDE_GROUP_CLASS "groupOverride"
#define SYSDB_OVERRIDE_DN "overrideDN"
#define SYSDB_OVERRIDE_OBJECT_DN "overrideObjectDN"
+#define SYSDB_USE_DOMAIN_RESOLUTION_ORDER "useDomainResolutionOrder"
+#define SYSDB_DOMAIN_RESOLUTION_ORDER "domainResolutionOrder"
#define SYSDB_NEXTID_FILTER "("SYSDB_NEXTID"=*)"
diff --git a/src/db/sysdb_domain_resolution_order.c b/src/db/sysdb_domain_resolution_order.c
new file mode 100644
index 0000000000000000000000000000000000000000..63774461a1e9f3dc863220d418e29e06d6e6e6df
--- /dev/null
+++ b/src/db/sysdb_domain_resolution_order.c
@@ -0,0 +1,169 @@
+/*
+ Authors:
+ Fabiano Fidêncio <fidencio@redhat.com>
+
+ Copyright (C) 2017 Red Hat
+
+ 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 <ldb.h>
+
+#include "db/sysdb.h"
+#include "db/sysdb_private.h"
+
+static errno_t
+sysdb_get_domain_resolution_order_string_attr(TALLOC_CTX *mem_ctx,
+ struct sysdb_ctx *sysdb,
+ struct ldb_dn *dn,
+ const char *const *attrs,
+ const char **_attr)
+{
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_result *res;
+ const char *attr;
+ errno_t ret;
+
+ tmp_ctx = talloc_new(NULL);
+ if (tmp_ctx == NULL) {
+ return ENOMEM;
+ }
+
+ ret = ldb_search(sysdb->ldb, tmp_ctx, &res, dn, LDB_SCOPE_BASE, attrs,
+ NULL);
+ if (ret != LDB_SUCCESS) {
+ ret = EIO;
+ goto done;
+ }
+
+ if (res->count > 1) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ "Base search returned [%d] results, expected 1.\n", res->count);
+ ret = EINVAL;
+ goto done;
+ } else if (res->count == 0) {
+ ret = ENOENT;
+ goto done;
+ } else {
+ /* res->count == 1 */
+ attr = ldb_msg_find_attr_as_string(res->msgs[0], attrs[0], NULL);
+ if (attr == NULL) {
+ ret = ENOENT;
+ goto done;
+ }
+ }
+
+ *_attr = talloc_steal(mem_ctx, attr);
+
+ ret = EOK;
+
+done:
+ talloc_free(tmp_ctx);
+ return ret;
+}
+
+errno_t
+sysdb_get_domain_resolution_order(TALLOC_CTX *mem_ctx,
+ struct sysdb_ctx *sysdb,
+ struct ldb_dn *dn,
+ const char **_domain_resolution_order)
+{
+ TALLOC_CTX *tmp_ctx;
+ const char *domain_resolution_order = NULL;
+ const char *attrs[] = { SYSDB_DOMAIN_RESOLUTION_ORDER, NULL };
+ errno_t ret;
+
+ tmp_ctx = talloc_new(NULL);
+ if (tmp_ctx == NULL) {
+ return ENOMEM;
+ }
+
+ ret = sysdb_get_domain_resolution_order_string_attr(
+ tmp_ctx, sysdb, dn, attrs, &domain_resolution_order);
+ if (ret != EOK && ret != ENOENT) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ "sysdb_get_domain_resolution_order_string_attr() failed "
+ "[%d]: [%s]",
+ ret, sss_strerror(ret));
+ goto done;
+ } else if (ret == ENOENT) {
+ *_domain_resolution_order = NULL;
+ goto done;
+ } else {
+ /* ret == EOK */
+ *_domain_resolution_order = talloc_steal(mem_ctx,
+ domain_resolution_order);
+ }
+
+ ret = EOK;
+
+done:
+ talloc_free(tmp_ctx);
+ return ret;
+}
+
+errno_t
+sysdb_update_domain_resolution_order(struct sysdb_ctx *sysdb,
+ struct ldb_dn *dn,
+ const char *domain_resolution_order)
+{
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_message *msg;
+ errno_t ret;
+
+ tmp_ctx = talloc_new(NULL);
+ if (tmp_ctx == NULL) {
+ return ENOMEM;
+ }
+
+ msg = ldb_msg_new(tmp_ctx);
+ if (msg == NULL) {
+ ret = ENOMEM;
+ goto done;
+ }
+
+ msg->dn = dn;
+
+ ret = ldb_msg_add_empty(msg, SYSDB_DOMAIN_RESOLUTION_ORDER,
+ LDB_FLAG_MOD_REPLACE, NULL);
+ if (ret != LDB_SUCCESS) {
+ ret = sysdb_error_to_errno(ret);
+ goto done;
+ }
+
+ if (domain_resolution_order != NULL) {
+ ret = ldb_msg_add_string(msg, SYSDB_DOMAIN_RESOLUTION_ORDER,
+ domain_resolution_order);
+ if (ret != LDB_SUCCESS) {
+ ret = sysdb_error_to_errno(ret);
+ goto done;
+ }
+ }
+
+ ret = ldb_modify(sysdb->ldb, msg);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ "ldb_modify()_failed: [%s][%d][%s]\n",
+ ldb_strerror(ret), ret, ldb_errstring(sysdb->ldb));
+ ret = sysdb_error_to_errno(ret);
+ goto done;
+ }
+
+
+ ret = EOK;
+
+done:
+ talloc_free(tmp_ctx);
+ return ret;
+}
diff --git a/src/db/sysdb_domain_resolution_order.h b/src/db/sysdb_domain_resolution_order.h
new file mode 100644
index 0000000000000000000000000000000000000000..45d2ea63f6bc14cd3184994530846ee6f762d4d0
--- /dev/null
+++ b/src/db/sysdb_domain_resolution_order.h
@@ -0,0 +1,37 @@
+/*
+ Authors:
+ Fabiano Fidêncio <fidencio@redhat.com>
+
+ Copyright (C) 2017 Red Hat
+
+ 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/>.
+*/
+
+#ifndef _SYSDB_DOMAIN_RESOLUTION_ORDER_H_
+#define _SYSDB_DOMAIN_RESOLUTION_ORDER_H_
+
+#include "db/sysdb.h"
+
+errno_t
+sysdb_get_domain_resolution_order(TALLOC_CTX *mem_ctx,
+ struct sysdb_ctx *sysdb,
+ struct ldb_dn *dn,
+ const char **_domain_resolution_order);
+
+errno_t
+sysdb_update_domain_resolution_order(struct sysdb_ctx *sysdb,
+ struct ldb_dn *dn,
+ const char *domain_resolution_order);
+
+#endif /* _SYSDB_DOMAIN_RESOLUTION_ORDER_H_ */
--
2.12.2
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