From 2e452583728b2596aba65a96d25f7f8312765538 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pavel=20B=C5=99ezina?= 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 --- 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