From e683556dc6671a6047de8bb970d32360d5aa59dc Mon Sep 17 00:00:00 2001

From: =?UTF-8?q?Pavel=20B=C5=99ezina?= <pbrezina@redhat.com>

Date: Tue, 6 Aug 2019 12:08:59 +0200

Subject: [PATCH 76/90] cache_req: add autofs map by name plugin

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We will use the current data provider call that downloads all map entries

but we will replace it later when new call is available.

Resolves:

https://pagure.io/SSSD/sssd/issue/2607

Reviewed-by: Tomáš Halman <thalman@redhat.com>

---

 Makefile.am                                   |   1 +

 src/responder/common/cache_req/cache_req.c    |   1 +

 src/responder/common/cache_req/cache_req.h    |  13 ++

 .../common/cache_req/cache_req_data.c         |   1 +

 .../common/cache_req/cache_req_plugin.h       |   1 +

 .../plugins/cache_req_autofs_map_by_name.c    | 124 ++++++++++++++++++

 src/tests/cwrap/Makefile.am                   |   1 +

 7 files changed, 142 insertions(+)

 create mode 100644 src/responder/common/cache_req/plugins/cache_req_autofs_map_by_name.c

diff --git a/Makefile.am b/Makefile.am

index 879f38311..461a9355f 100644

--- a/Makefile.am

+++ b/Makefile.am

@@ -560,6 +560,7 @@ SSSD_CACHE_REQ_OBJ = \

 	src/responder/common/cache_req/plugins/cache_req_netgroup_by_name.c \

 	src/responder/common/cache_req/plugins/cache_req_host_by_name.c \

 	src/responder/common/cache_req/plugins/cache_req_autofs_map_entries.c \

+	src/responder/common/cache_req/plugins/cache_req_autofs_map_by_name.c \

 	$(NULL)

 SSSD_RESPONDER_IFACE_OBJ = \

diff --git a/src/responder/common/cache_req/cache_req.c b/src/responder/common/cache_req/cache_req.c

index 2ce9deca0..75f396a23 100644

--- a/src/responder/common/cache_req/cache_req.c

+++ b/src/responder/common/cache_req/cache_req.c

@@ -62,6 +62,7 @@ cache_req_get_plugin(enum cache_req_type type)

         &cache_req_host_by_name,

         &cache_req_autofs_map_entries,

+        &cache_req_autofs_map_by_name

     };

     if (type >= CACHE_REQ_SENTINEL) {

diff --git a/src/responder/common/cache_req/cache_req.h b/src/responder/common/cache_req/cache_req.h

index 0c214a483..66a13445c 100644

--- a/src/responder/common/cache_req/cache_req.h

+++ b/src/responder/common/cache_req/cache_req.h

@@ -55,6 +55,7 @@ enum cache_req_type {

     CACHE_REQ_HOST_BY_NAME,

     CACHE_REQ_AUTOFS_MAP_ENTRIES,

+    CACHE_REQ_AUTOFS_MAP_BY_NAME,

     CACHE_REQ_SENTINEL

 };

@@ -444,4 +445,16 @@ cache_req_autofs_map_entries_send(TALLOC_CTX *mem_ctx,

 #define cache_req_autofs_map_entries_recv(mem_ctx, req, _result) \

     cache_req_single_domain_recv(mem_ctx, req, _result)

+struct tevent_req *

+cache_req_autofs_map_by_name_send(TALLOC_CTX *mem_ctx,

+                                  struct tevent_context *ev,

+                                  struct resp_ctx *rctx,

+                                  struct sss_nc_ctx *ncache,

+                                  int cache_refresh_percent,

+                                  const char *domain,

+                                  const char *name);

+

+#define cache_req_autofs_map_by_name_recv(mem_ctx, req, _result) \

+    cache_req_single_domain_recv(mem_ctx, req, _result)

+

 #endif /* _CACHE_REQ_H_ */

diff --git a/src/responder/common/cache_req/cache_req_data.c b/src/responder/common/cache_req/cache_req_data.c

index 20d73ebfd..ad6176641 100644

--- a/src/responder/common/cache_req/cache_req_data.c

+++ b/src/responder/common/cache_req/cache_req_data.c

@@ -94,6 +94,7 @@ cache_req_data_create(TALLOC_CTX *mem_ctx,

     case CACHE_REQ_NETGROUP_BY_NAME:

     case CACHE_REQ_OBJECT_BY_NAME:

     case CACHE_REQ_AUTOFS_MAP_ENTRIES:

+    case CACHE_REQ_AUTOFS_MAP_BY_NAME:

         if (input->name.input == NULL) {

             DEBUG(SSSDBG_CRIT_FAILURE, "Bug: name cannot be NULL!\n");

             ret = ERR_INTERNAL;

diff --git a/src/responder/common/cache_req/cache_req_plugin.h b/src/responder/common/cache_req/cache_req_plugin.h

index 1071cd889..c040bf380 100644

--- a/src/responder/common/cache_req/cache_req_plugin.h

+++ b/src/responder/common/cache_req/cache_req_plugin.h

@@ -315,5 +315,6 @@ extern const struct cache_req_plugin cache_req_svc_by_port;

 extern const struct cache_req_plugin cache_req_netgroup_by_name;

 extern const struct cache_req_plugin cache_req_host_by_name;

 extern const struct cache_req_plugin cache_req_autofs_map_entries;

+extern const struct cache_req_plugin cache_req_autofs_map_by_name;

 #endif /* _CACHE_REQ_PLUGIN_H_ */

diff --git a/src/responder/common/cache_req/plugins/cache_req_autofs_map_by_name.c b/src/responder/common/cache_req/plugins/cache_req_autofs_map_by_name.c

new file mode 100644

index 000000000..2f69c762c

--- /dev/null

+++ b/src/responder/common/cache_req/plugins/cache_req_autofs_map_by_name.c

@@ -0,0 +1,124 @@

+/*

+    Authors:

+        Pavel Březina <pbrezina@redhat.com>

+

+    Copyright (C) 2019 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 <talloc.h>

+#include <ldb.h>

+

+#include "db/sysdb.h"

+#include "db/sysdb_autofs.h"

+#include "util/util.h"

+#include "providers/data_provider.h"

+#include "responder/common/cache_req/cache_req_plugin.h"

+

+static const char *

+cache_req_autofs_map_by_name_create_debug_name(TALLOC_CTX *mem_ctx,

+                                               struct cache_req_data *data,

+                                               struct sss_domain_info *domain)

+{

+    return talloc_strdup(mem_ctx, data->name.name);

+}

+

+static errno_t

+cache_req_autofs_map_by_name_lookup(TALLOC_CTX *mem_ctx,

+                                    struct cache_req *cr,

+                                    struct cache_req_data *data,

+                                    struct sss_domain_info *domain,

+                                    struct ldb_result **_result)

+{

+    struct ldb_message *map;

+    struct ldb_result *result;

+    errno_t ret;

+

+    ret = sysdb_get_map_byname(mem_ctx, domain, data->name.name, &map);

+    if (ret != EOK) {

+        return ret;

+    }

+

+    result = cache_req_create_ldb_result_from_msg(mem_ctx, map);

+    if (result == NULL) {

+        talloc_free(map);

+        return ENOMEM;

+    }

+

+    *_result = talloc_steal(mem_ctx, result);

+    return EOK;

+}

+

+static struct tevent_req *

+cache_req_autofs_map_by_name_dp_send(TALLOC_CTX *mem_ctx,

+                                     struct cache_req *cr,

+                                     struct cache_req_data *data,

+                                     struct sss_domain_info *domain,

+                                     struct ldb_result *result)

+{

+    return sss_dp_get_autofs_send(mem_ctx, cr->rctx, domain, true,

+                                  SSS_DP_AUTOFS, data->name.name);

+}

+

+const struct cache_req_plugin cache_req_autofs_map_by_name = {

+    .name = "Get autofs map",

+    .attr_expiration = SYSDB_CACHE_EXPIRE,

+    .parse_name = true,

+    .ignore_default_domain = true,

+    .bypass_cache = false,

+    .only_one_result = false,

+    .search_all_domains = false,

+    .require_enumeration = false,

+    .allow_missing_fqn = true,

+    .allow_switch_to_upn = false,

+    .upn_equivalent = CACHE_REQ_SENTINEL,

+    .get_next_domain_flags = 0,

+

+    .is_well_known_fn = NULL,

+    .prepare_domain_data_fn = NULL,

+    .create_debug_name_fn = cache_req_autofs_map_by_name_create_debug_name,

+    .global_ncache_add_fn = NULL,

+    .ncache_check_fn = NULL,

+    .ncache_add_fn = NULL,

+    .ncache_filter_fn = NULL,

+    .lookup_fn = cache_req_autofs_map_by_name_lookup,

+    .dp_send_fn = cache_req_autofs_map_by_name_dp_send,

+    .dp_recv_fn = cache_req_common_dp_recv,

+    .dp_get_domain_check_fn = NULL,

+    .dp_get_domain_send_fn = NULL,

+    .dp_get_domain_recv_fn = NULL,

+};

+

+struct tevent_req *

+cache_req_autofs_map_by_name_send(TALLOC_CTX *mem_ctx,

+                                  struct tevent_context *ev,

+                                  struct resp_ctx *rctx,

+                                  struct sss_nc_ctx *ncache,

+                                  int cache_refresh_percent,

+                                  const char *domain,

+                                  const char *name)

+{

+    struct cache_req_data *data;

+

+    data = cache_req_data_name(mem_ctx, CACHE_REQ_AUTOFS_MAP_BY_NAME, name);

+    if (data == NULL) {

+        return NULL;

+    }

+

+    return cache_req_steal_data_and_send(mem_ctx, ev, rctx, ncache,

+                                         cache_refresh_percent,

+                                         CACHE_REQ_POSIX_DOM, domain,

+                                         data);

+}

diff --git a/src/tests/cwrap/Makefile.am b/src/tests/cwrap/Makefile.am

index dfaf3f770..3fbcebf3c 100644

--- a/src/tests/cwrap/Makefile.am

+++ b/src/tests/cwrap/Makefile.am

@@ -65,6 +65,7 @@ SSSD_CACHE_REQ_OBJ = \

     ../../../src/responder/common/cache_req/plugins/cache_req_netgroup_by_name.c \

     ../../../src/responder/common/cache_req/plugins/cache_req_host_by_name.c \

     ../../../src/responder/common/cache_req/plugins/cache_req_autofs_map_entries.c \

+    ../../../src/responder/common/cache_req/plugins/cache_req_autofs_map_by_name.c \

     $(NULL)

 SSSD_RESPONDER_IFACE_OBJ = \

-- 

2.20.1