From 2e452583728b2596aba65a96d25f7f8312765538 Mon Sep 17 00:00:00 2001

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

Date: Thu, 15 Aug 2019 14:07:01 +0200

Subject: [PATCH 86/90] ldap: implement autofs get entry

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>

---

 src/providers/ipa/ipa_autofs.c                |   4 +

 src/providers/ldap/ldap_common.h              |  11 +

 src/providers/ldap/sdap_async_autofs.c        | 235 +++++++++++++++++-

 src/providers/ldap/sdap_autofs.c              |  88 +++++++

 src/providers/ldap/sdap_autofs.h              |   8 +

 .../plugins/cache_req_autofs_entry_by_name.c  |   4 +-

 6 files changed, 347 insertions(+), 3 deletions(-)

diff --git a/src/providers/ipa/ipa_autofs.c b/src/providers/ipa/ipa_autofs.c

index 19d74071f..5f72d60cd 100644

--- a/src/providers/ipa/ipa_autofs.c

+++ b/src/providers/ipa/ipa_autofs.c

@@ -55,5 +55,9 @@ errno_t ipa_autofs_init(TALLOC_CTX *mem_ctx,

                   sdap_autofs_get_map_handler_send, sdap_autofs_get_map_handler_recv, id_ctx,

                   struct sdap_id_ctx, struct dp_autofs_data, struct dp_reply_std);

+    dp_set_method(dp_methods, DPM_AUTOFS_GET_ENTRY,

+                  sdap_autofs_get_entry_handler_send, sdap_autofs_get_entry_handler_recv, id_ctx,

+                  struct sdap_id_ctx, struct dp_autofs_data, struct dp_reply_std);

+

     return ret;

 }

diff --git a/src/providers/ldap/ldap_common.h b/src/providers/ldap/ldap_common.h

index 36623aca8..893f29a38 100644

--- a/src/providers/ldap/ldap_common.h

+++ b/src/providers/ldap/ldap_common.h

@@ -177,6 +177,17 @@ sdap_autofs_get_map_handler_recv(TALLOC_CTX *mem_ctx,

                                  struct tevent_req *req,

                                  struct dp_reply_std *data);

+struct tevent_req *

+sdap_autofs_get_entry_handler_send(TALLOC_CTX *mem_ctx,

+                                 struct sdap_id_ctx *id_ctx,

+                                 struct dp_autofs_data *data,

+                                 struct dp_req_params *params);

+

+errno_t

+sdap_autofs_get_entry_handler_recv(TALLOC_CTX *mem_ctx,

+                                   struct tevent_req *req,

+                                   struct dp_reply_std *data);

+

 int sdap_service_init(TALLOC_CTX *memctx, struct be_ctx *ctx,

                       const char *service_name, const char *dns_service_name,

                       const char *urls, const char *backup_urls,

diff --git a/src/providers/ldap/sdap_async_autofs.c b/src/providers/ldap/sdap_async_autofs.c

index 52ceb84ac..c31df2f59 100644

--- a/src/providers/ldap/sdap_async_autofs.c

+++ b/src/providers/ldap/sdap_async_autofs.c

@@ -1100,7 +1100,7 @@ static void sdap_autofs_get_map_connect_done(struct tevent_req *subreq)

                     state->opts->sdom->autofs_search_bases,

                     state->opts->autofs_mobject_map, false,

                     dp_opt_get_int(state->opts->basic, SDAP_SEARCH_TIMEOUT),

-                    filter, attrs);

+                    filter, attrs, NULL);

     if (subreq == NULL) {

         state->dp_error = DP_ERR_FATAL;

         tevent_req_error(req, ENOMEM);

@@ -1177,3 +1177,236 @@ errno_t sdap_autofs_get_map_recv(struct tevent_req *req,

     return EOK;

 }

+

+struct sdap_autofs_get_entry_state {

+    struct sdap_id_ctx *id_ctx;

+    struct sdap_options *opts;

+    struct sdap_id_op *sdap_op;

+    const char *mapname;

+    const char *entryname;

+    int dp_error;

+};

+

+static errno_t sdap_autofs_get_entry_retry(struct tevent_req *req);

+static void sdap_autofs_get_entry_connect_done(struct tevent_req *subreq);

+static void sdap_autofs_get_entry_done(struct tevent_req *subreq);

+

+struct tevent_req *sdap_autofs_get_entry_send(TALLOC_CTX *mem_ctx,

+                                              struct sdap_id_ctx *id_ctx,

+                                              const char *mapname,

+                                              const char *entryname)

+{

+    struct tevent_req *req;

+    struct sdap_autofs_get_entry_state *state;

+    int ret;

+

+    req = tevent_req_create(mem_ctx, &state, struct sdap_autofs_get_entry_state);

+    if (!req) {

+        return NULL;

+    }

+

+    state->id_ctx = id_ctx;

+    state->opts = id_ctx->opts;

+    state->mapname = mapname;

+    state->entryname = entryname;

+    state->dp_error = DP_ERR_FATAL;

+

+    state->sdap_op = sdap_id_op_create(state, id_ctx->conn->conn_cache);

+    if (!state->sdap_op) {

+        DEBUG(SSSDBG_OP_FAILURE, "sdap_id_op_create() failed\n");

+        ret = ENOMEM;

+        goto done;

+    }

+

+    ret = sdap_autofs_get_entry_retry(req);

+    if (ret == EAGAIN) {

+        /* asynchronous processing */

+        return req;

+    }

+

+done:

+    if (ret == EOK) {

+        tevent_req_done(req);

+    } else {

+        tevent_req_error(req, ret);

+    }

+    tevent_req_post(req, id_ctx->be->ev);

+

+    return req;

+}

+

+static errno_t sdap_autofs_get_entry_retry(struct tevent_req *req)

+{

+    struct sdap_autofs_get_entry_state *state;

+    struct tevent_req *subreq;

+    int ret;

+

+    state = tevent_req_data(req, struct sdap_autofs_get_entry_state);

+

+    subreq = sdap_id_op_connect_send(state->sdap_op, state, &ret;;

+    if (subreq == NULL) {

+        DEBUG(SSSDBG_CRIT_FAILURE, "sdap_id_op_connect_send() failed: "

+                                   "%d(%s)\n", ret, strerror(ret));

+        return ret;

+    }

+

+    tevent_req_set_callback(subreq, sdap_autofs_get_entry_connect_done, req);

+

+    return EAGAIN;

+}

+

+static void sdap_autofs_get_entry_connect_done(struct tevent_req *subreq)

+{

+    struct tevent_req *req;

+    struct sdap_autofs_get_entry_state *state;

+    struct ldb_message *map;

+    char *filter;

+    char *safe_entryname;

+    const char **attrs;

+    const char *base_dn;

+    int dp_error;

+    int ret;

+

+    req = tevent_req_callback_data(subreq, struct tevent_req);

+    state = tevent_req_data(req, struct sdap_autofs_get_entry_state);

+

+    ret = sdap_id_op_connect_recv(subreq, &dp_error);

+    talloc_zfree(subreq);

+

+    if (ret != EOK) {

+        DEBUG(SSSDBG_CRIT_FAILURE, "LDAP connection failed "

+                                   "[%d]: %s\n", ret, strerror(ret));

+        state->dp_error = dp_error;

+        tevent_req_error(req, ret);

+        return;

+    }

+

+    DEBUG(SSSDBG_TRACE_FUNC, "LDAP connection successful\n");

+

+    ret = sysdb_get_map_byname(state, state->id_ctx->be->domain,

+                               state->mapname, &map);

+    if (ret == ENOENT) {

+        DEBUG(SSSDBG_CRIT_FAILURE, "Map %s does not exist!\n", state->mapname);

+        tevent_req_error(req, ret);

+        return;

+    } else if (ret != EOK) {

+        DEBUG(SSSDBG_CRIT_FAILURE, "Unable to get map %s [%d]: %s\n",

+              state->mapname, ret, sss_strerror(ret));

+        tevent_req_error(req, ret);

+        return;

+    }

+

+    base_dn = ldb_msg_find_attr_as_string(map, SYSDB_ORIG_DN, NULL);

+    if (base_dn == NULL) {

+        DEBUG(SSSDBG_CRIT_FAILURE, "Cannot get originalDN\n");

+        tevent_req_error(req, ERR_INTERNAL);

+        return;

+    }

+

+    ret = sss_filter_sanitize(state, state->entryname, &safe_entryname);

+    if (ret != EOK) {

+        tevent_req_error(req, ret);

+        return;

+    }

+

+    filter = talloc_asprintf(state, "(&(%s=%s)(objectclass=%s))",

+                 state->opts->autofs_entry_map[SDAP_AT_AUTOFS_ENTRY_KEY].name,

+                 safe_entryname,

+                 state->opts->autofs_entry_map[SDAP_OC_AUTOFS_ENTRY].name);

+    if (filter == NULL) {

+        DEBUG(SSSDBG_CRIT_FAILURE, "Failed to build filter\n");

+        tevent_req_error(req, ret);

+        return;

+    }

+

+    ret = build_attrs_from_map(state, state->opts->autofs_entry_map,

+                               SDAP_OPTS_AUTOFS_ENTRY, NULL, &attrs, NULL);

+    if (ret != EOK) {

+        DEBUG(SSSDBG_CRIT_FAILURE, "Failed to build attributes from map\n");

+        tevent_req_error(req, ret);

+        return;

+    }

+

+    subreq = sdap_search_bases_return_first_send(state, state->id_ctx->be->ev,

+                    state->opts, sdap_id_op_handle(state->sdap_op),

+                    state->opts->sdom->autofs_search_bases,

+                    state->opts->autofs_entry_map, false,

+                    dp_opt_get_int(state->opts->basic, SDAP_SEARCH_TIMEOUT),

+                    filter, attrs, base_dn);

+    if (subreq == NULL) {

+        state->dp_error = DP_ERR_FATAL;

+        tevent_req_error(req, ENOMEM);

+        return;

+    }

+

+    tevent_req_set_callback(subreq, sdap_autofs_get_entry_done, req);

+}

+

+static void sdap_autofs_get_entry_done(struct tevent_req *subreq)

+{

+    struct tevent_req *req;

+    struct sdap_autofs_get_entry_state *state;

+    struct sysdb_attrs **reply;

+    size_t reply_count;

+    errno_t ret;

+

+    req = tevent_req_callback_data(subreq, struct tevent_req);

+    state = tevent_req_data(req, struct sdap_autofs_get_entry_state);

+

+    ret = sdap_search_bases_return_first_recv(subreq, state, &reply_count,

+                                              &reply);

+    talloc_zfree(subreq);

+

+    ret = sdap_id_op_done(state->sdap_op, ret, &state->dp_error);

+    if (state->dp_error == DP_ERR_OK && ret != EOK) {

+        /* retry */

+        ret = sdap_autofs_get_entry_retry(req);

+        if (ret != EOK) {

+            tevent_req_error(req, ret);

+        }

+        return;

+    } else if (ret != EOK) {

+        tevent_req_error(req, ret);

+        return;

+    }

+

+    if (reply_count == 0) {

+        ret = sysdb_del_autofsentry_by_key(state->id_ctx->be->domain,

+                                           state->mapname, state->entryname);

+        if (ret != EOK) {

+            DEBUG(SSSDBG_MINOR_FAILURE, "Cannot delete entry %s:%s\n",

+                  state->mapname, state->entryname);

+            tevent_req_error(req, ret);

+            return;

+        }

+

+        tevent_req_done(req);

+        return;

+    }

+

+    ret = add_autofs_entry(state->id_ctx->be->domain, state->mapname,

+                           state->opts, reply[0], time(NULL));

+    if (ret != EOK) {

+        DEBUG(SSSDBG_OP_FAILURE,

+             "Cannot save autofs entry %s:%s [%d]: %s\n",

+              state->mapname, state->entryname, ret, strerror(ret));

+        tevent_req_error(req, ret);

+        return;

+    }

+

+    tevent_req_done(req);

+}

+

+errno_t sdap_autofs_get_entry_recv(struct tevent_req *req,

+                                   int *dp_error)

+{

+    struct sdap_autofs_get_entry_state *state;

+

+    state = tevent_req_data(req, struct sdap_autofs_get_entry_state);

+

+    TEVENT_REQ_RETURN_ON_ERROR(req);

+

+    *dp_error = state->dp_error;

+

+    return EOK;

+}

diff --git a/src/providers/ldap/sdap_autofs.c b/src/providers/ldap/sdap_autofs.c

index 9a5ed11e8..b1e4b5aef 100644

--- a/src/providers/ldap/sdap_autofs.c

+++ b/src/providers/ldap/sdap_autofs.c

@@ -391,6 +391,90 @@ sdap_autofs_get_map_handler_recv(TALLOC_CTX *mem_ctx,

     return EOK;

 }

+struct sdap_autofs_get_entry_handler_state {

+    struct dp_reply_std reply;

+};

+

+static void sdap_autofs_get_entry_handler_done(struct tevent_req *subreq);

+

+struct tevent_req *

+sdap_autofs_get_entry_handler_send(TALLOC_CTX *mem_ctx,

+                                 struct sdap_id_ctx *id_ctx,

+                                 struct dp_autofs_data *data,

+                                 struct dp_req_params *params)

+{

+    struct sdap_autofs_get_entry_handler_state *state;

+    struct tevent_req *subreq;

+    struct tevent_req *req;

+    errno_t ret;

+

+    req = tevent_req_create(mem_ctx, &state,

+                            struct sdap_autofs_get_entry_handler_state);

+    if (req == NULL) {

+        DEBUG(SSSDBG_CRIT_FAILURE, "tevent_req_create() failed\n");

+        return NULL;

+    }

+

+    DEBUG(SSSDBG_FUNC_DATA, "Requested refresh for: %s:%s\n",

+          data->mapname, data->entryname);

+

+    subreq = sdap_autofs_get_entry_send(mem_ctx, id_ctx,

+                                        data->mapname, data->entryname);

+    if (subreq == NULL) {

+        DEBUG(SSSDBG_CRIT_FAILURE, "Unable to send request for %s:%s.\n",

+              data->mapname, data->entryname);

+        ret = ENOMEM;

+        goto immediately;

+    }

+

+    tevent_req_set_callback(subreq, sdap_autofs_get_entry_handler_done, req);

+

+    return req;

+

+immediately:

+    dp_reply_std_set(&state->reply, DP_ERR_DECIDE, ret, NULL);

+

+    /* TODO For backward compatibility we always return EOK to DP now. */

+    tevent_req_done(req);

+    tevent_req_post(req, params->ev);

+

+    return req;

+}

+

+static void sdap_autofs_get_entry_handler_done(struct tevent_req *subreq)

+{

+    struct sdap_autofs_get_entry_handler_state *state;

+    struct tevent_req *req;

+    int dp_error;

+    errno_t ret;

+

+    req = tevent_req_callback_data(subreq, struct tevent_req);

+    state = tevent_req_data(req, struct sdap_autofs_get_entry_handler_state);

+

+    ret = sdap_autofs_get_entry_recv(subreq, &dp_error);

+    talloc_zfree(subreq);

+

+    /* TODO For backward compatibility we always return EOK to DP now. */

+    dp_reply_std_set(&state->reply, dp_error, ret, NULL);

+    tevent_req_done(req);

+}

+

+errno_t

+sdap_autofs_get_entry_handler_recv(TALLOC_CTX *mem_ctx,

+                                   struct tevent_req *req,

+                                   struct dp_reply_std *data)

+{

+    struct sdap_autofs_get_entry_handler_state *state = NULL;

+

+    state = tevent_req_data(req, struct sdap_autofs_get_entry_handler_state);

+

+    TEVENT_REQ_RETURN_ON_ERROR(req);

+

+    *data = state->reply;

+

+    return EOK;

+}

+

 errno_t sdap_autofs_init(TALLOC_CTX *mem_ctx,

                          struct be_ctx *be_ctx,

                          struct sdap_id_ctx *id_ctx,

@@ -414,5 +498,9 @@ errno_t sdap_autofs_init(TALLOC_CTX *mem_ctx,

                   sdap_autofs_get_map_handler_send, sdap_autofs_get_map_handler_recv, id_ctx,

                   struct sdap_id_ctx, struct dp_autofs_data, struct dp_reply_std);

+    dp_set_method(dp_methods, DPM_AUTOFS_GET_ENTRY,

+                  sdap_autofs_get_entry_handler_send, sdap_autofs_get_entry_handler_recv, id_ctx,

+                  struct sdap_id_ctx, struct dp_autofs_data, struct dp_reply_std);

+

     return EOK;

 }

diff --git a/src/providers/ldap/sdap_autofs.h b/src/providers/ldap/sdap_autofs.h

index 34b9ca953..210393746 100644

--- a/src/providers/ldap/sdap_autofs.h

+++ b/src/providers/ldap/sdap_autofs.h

@@ -50,5 +50,13 @@ struct tevent_req *sdap_autofs_get_map_send(TALLOC_CTX *mem_ctx,

 errno_t sdap_autofs_get_map_recv(struct tevent_req *req,

                                  int *dp_error);

+struct tevent_req *sdap_autofs_get_entry_send(TALLOC_CTX *mem_ctx,

+                                              struct sdap_id_ctx *id_ctx,

+                                              const char *mapname,

+                                              const char *entryname);

+

+errno_t sdap_autofs_get_entry_recv(struct tevent_req *req,

+                                   int *dp_error);

+

 #endif /* _SDAP_AUTOFS_H_ */

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

index f4d0cb140..422fe90c4 100644

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

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

@@ -72,8 +72,8 @@ cache_req_autofs_entry_by_name_dp_send(TALLOC_CTX *mem_ctx,

                                        struct ldb_result *result)

 {

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

-                                  SSS_DP_AUTOFS_ENUMERATE,

-                                  data->name.name, NULL);

+                                  SSS_DP_AUTOFS_GET_ENTRY,

+                                  data->name.name, data->autofs_entry_name);

 }

 const struct cache_req_plugin cache_req_autofs_entry_by_name = {

-- 

2.20.1