From 01b7dc92180cf80080f657b80f72cec20eafa0e7 Mon Sep 17 00:00:00 2001

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

Date: Tue, 13 Aug 2019 13:31:21 +0200

Subject: [PATCH 75/90] cache_req: add autofs map entries plugin

MIME-Version: 1.0

Content-Type: text/plain; charset=UTF-8

Content-Transfer-Encoding: 8bit

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    |   2 +

 src/responder/common/cache_req/cache_req.h    |  14 ++

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

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

 .../plugins/cache_req_autofs_map_entries.c    | 156 ++++++++++++++++++

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

 7 files changed, 176 insertions(+)

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

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

index c109afe56..879f38311 100644

--- a/Makefile.am

+++ b/Makefile.am

@@ -559,6 +559,7 @@ SSSD_CACHE_REQ_OBJ = \

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

 	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 \

 	$(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 28b563392..2ce9deca0 100644

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

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

@@ -60,6 +60,8 @@ cache_req_get_plugin(enum cache_req_type type)

         &cache_req_netgroup_by_name,

         &cache_req_host_by_name,

+

+        &cache_req_autofs_map_entries,

     };

     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 84dd22c25..0c214a483 100644

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

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

@@ -54,6 +54,8 @@ enum cache_req_type {

     CACHE_REQ_HOST_BY_NAME,

+    CACHE_REQ_AUTOFS_MAP_ENTRIES,

+

     CACHE_REQ_SENTINEL

 };

@@ -430,4 +432,16 @@ cache_req_host_by_name_send(TALLOC_CTX *mem_ctx,

 #define cache_req_host_by_name_recv(mem_ctx, req, _result) \

     cache_req_single_domain_recv(mem_ctx, req, _result)

+struct tevent_req *

+cache_req_autofs_map_entries_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_entries_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 77959f9fe..20d73ebfd 100644

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

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

@@ -93,6 +93,7 @@ cache_req_data_create(TALLOC_CTX *mem_ctx,

     case CACHE_REQ_INITGROUPS_BY_UPN:

     case CACHE_REQ_NETGROUP_BY_NAME:

     case CACHE_REQ_OBJECT_BY_NAME:

+    case CACHE_REQ_AUTOFS_MAP_ENTRIES:

         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 d547c9bf3..1071cd889 100644

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

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

@@ -314,5 +314,6 @@ extern const struct cache_req_plugin cache_req_svc_by_name;

 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;

 #endif /* _CACHE_REQ_PLUGIN_H_ */

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

new file mode 100644

index 000000000..73d2b3cf2

--- /dev/null

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

@@ -0,0 +1,156 @@

+/*

+    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_entries_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_entries_lookup(TALLOC_CTX *mem_ctx,

+                                    struct cache_req *cr,

+                                    struct cache_req_data *data,

+                                    struct sss_domain_info *domain,

+                                    struct ldb_result **_result)

+{

+    TALLOC_CTX *tmp_ctx;

+    struct ldb_message *map;

+    struct ldb_message **mounts;

+    struct ldb_message **msgs;

+    struct ldb_result *result;

+    size_t count;

+    size_t i;

+    errno_t ret;

+

+    tmp_ctx = talloc_new(NULL);

+    if (tmp_ctx == NULL) {

+        return ENOMEM;

+    }

+

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

+    if (ret != EOK) {

+        goto done;

+    }

+

+    ret = sysdb_autofs_entries_by_map(tmp_ctx, domain, data->name.name,

+                                      &count, &mounts);

+    if (ret != EOK && ret != ENOENT) {

+        goto done;

+    }

+

+    msgs = talloc_zero_array(tmp_ctx, struct ldb_message *, count + 1);

+    if (msgs == NULL) {

+        ret = ENOMEM;

+        goto done;

+    }

+

+    msgs[0] = talloc_steal(msgs, map);

+    for (i = 0; i < count; i++) {

+        msgs[i + 1] = talloc_steal(msgs, mounts[i]);

+    }

+

+    result = cache_req_create_ldb_result_from_msg_list(tmp_ctx, msgs, count + 1);

+    if (result == NULL) {

+        ret = ENOMEM;

+        goto done;

+    }

+

+    *_result = talloc_steal(mem_ctx, result);

+    ret = EOK;

+

+done:

+    talloc_free(tmp_ctx);

+

+    return ret;

+}

+

+static struct tevent_req *

+cache_req_autofs_map_entries_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_entries = {

+    .name = "Get autofs entries",

+    .attr_expiration = SYSDB_ENUM_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_entries_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_entries_lookup,

+    .dp_send_fn = cache_req_autofs_map_entries_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_entries_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_ENTRIES, 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 1edefc678..dfaf3f770 100644

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

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

@@ -64,6 +64,7 @@ SSSD_CACHE_REQ_OBJ = \

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

     ../../../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 \

     $(NULL)

 SSSD_RESPONDER_IFACE_OBJ = \

-- 

2.20.1