diff options
Diffstat (limited to 'src/providers/ldap/sdap_async_hosts.c')
| -rw-r--r-- | src/providers/ldap/sdap_async_hosts.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/src/providers/ldap/sdap_async_hosts.c b/src/providers/ldap/sdap_async_hosts.c new file mode 100644 index 0000000..0633a3f --- /dev/null +++ b/src/providers/ldap/sdap_async_hosts.c @@ -0,0 +1,209 @@ +/* + SSSD + + Authors: + Jan Zeleny <jzeleny@redhat.com> + + Copyright (C) 2012 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 "util/util.h" +#include "providers/ldap/sdap_async_private.h" +#include "providers/ldap/ldap_common.h" + +struct sdap_host_state { + struct tevent_context *ev; + struct sdap_handle *sh; + struct sdap_options *opts; + const char **attrs; + struct sdap_attr_map *host_map; + + struct sdap_search_base **search_bases; + int search_base_iter; + + char *cur_filter; + char *host_filter; + + const char *hostname; + + /* Return values */ + size_t host_count; + struct sysdb_attrs **hosts; +}; + +static void +sdap_host_info_done(struct tevent_req *subreq); + +static errno_t +sdap_host_info_next(struct tevent_req *req, + struct sdap_host_state *state); + +/** + * hostname == NULL -> look up all hosts / host groups + * hostname != NULL -> look up only given host and groups + * it's member of + */ +struct tevent_req * +sdap_host_info_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct sdap_handle *sh, + struct sdap_options *opts, + const char *hostname, + struct sdap_attr_map *host_map, + struct sdap_search_base **search_bases) +{ + errno_t ret; + struct sdap_host_state *state; + struct tevent_req *req; + + req = tevent_req_create(mem_ctx, &state, struct sdap_host_state); + if (req == NULL) { + return NULL; + } + + state->ev = ev; + state->sh = sh; + state->opts = opts; + state->hostname = hostname; + state->search_bases = search_bases; + state->search_base_iter = 0; + state->cur_filter = NULL; + state->host_map = host_map; + + ret = build_attrs_from_map(state, host_map, SDAP_OPTS_HOST, + NULL, &state->attrs, NULL); + if (ret != EOK) { + goto immediate; + } + + if (hostname == NULL) { + state->host_filter = talloc_asprintf(state, "(objectClass=%s)", + host_map[SDAP_OC_HOST].name); + } else { + state->host_filter = talloc_asprintf(state, "(&(objectClass=%s)(%s=%s))", + host_map[SDAP_OC_HOST].name, + host_map[SDAP_AT_HOST_FQDN].name, + hostname); + } + if (state->host_filter == NULL) { + ret = ENOMEM; + goto immediate; + } + + ret = sdap_host_info_next(req, state); + if (ret == EOK) { + DEBUG(SSSDBG_CRIT_FAILURE, "No host search base configured?\n"); + ret = EINVAL; + } + + if (ret != EAGAIN) { + goto immediate; + } + + return req; + +immediate: + if (ret == EOK) { + tevent_req_done(req); + } else { + tevent_req_error(req, ret); + } + tevent_req_post(req, ev); + return req; +} + +static errno_t sdap_host_info_next(struct tevent_req *req, + struct sdap_host_state *state) +{ + struct sdap_search_base *base; + struct tevent_req *subreq; + + base = state->search_bases[state->search_base_iter]; + if (base == NULL) { + return EOK; + } + + talloc_zfree(state->cur_filter); + state->cur_filter = sdap_combine_filters(state, state->host_filter, + base->filter); + if (state->cur_filter == NULL) { + return ENOMEM; + } + + subreq = sdap_get_generic_send(state, state->ev, state->opts, + state->sh, base->basedn, + base->scope, state->cur_filter, + state->attrs, state->host_map, + SDAP_OPTS_HOST, + dp_opt_get_int(state->opts->basic, + SDAP_ENUM_SEARCH_TIMEOUT), + true); + if (subreq == NULL) { + DEBUG(SSSDBG_CRIT_FAILURE, "Error requesting host info\n"); + talloc_zfree(state->cur_filter); + return EIO; + } + tevent_req_set_callback(subreq, sdap_host_info_done, req); + + return EAGAIN; +} + +static void +sdap_host_info_done(struct tevent_req *subreq) +{ + errno_t ret; + struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); + struct sdap_host_state *state = tevent_req_data(req, struct sdap_host_state); + + ret = sdap_get_generic_recv(subreq, state, + &state->host_count, + &state->hosts); + talloc_zfree(subreq); + if (ret != EOK) { + tevent_req_error(req, ret); + return; + } + + if (state->host_count == 0) { + state->search_base_iter++; + ret = sdap_host_info_next(req, state); + if (ret == EOK) { + /* No more search bases to try */ + tevent_req_error(req, ENOENT); + } else if (ret != EAGAIN) { + tevent_req_error(req, ret); + } + return; + } + + /* Nothing else to do, just complete the req */ + tevent_req_done(req); +} + +errno_t sdap_host_info_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + size_t *host_count, + struct sysdb_attrs ***hosts) +{ + struct sdap_host_state *state = tevent_req_data(req, struct sdap_host_state); + + TEVENT_REQ_RETURN_ON_ERROR(req); + + *host_count = state->host_count; + *hosts = talloc_steal(mem_ctx, state->hosts); + + return EOK; +} |