diff options
Diffstat (limited to 'nsswitch/libwbclient/wbc_util_async.c')
-rw-r--r-- | nsswitch/libwbclient/wbc_util_async.c | 835 |
1 files changed, 835 insertions, 0 deletions
diff --git a/nsswitch/libwbclient/wbc_util_async.c b/nsswitch/libwbclient/wbc_util_async.c new file mode 100644 index 0000000000..eb7fb040ce --- /dev/null +++ b/nsswitch/libwbclient/wbc_util_async.c @@ -0,0 +1,835 @@ +/* + Unix SMB/CIFS implementation. + + Winbind client API + + Copyright (C) 2009,2010 Kai Blin <kai@samba.org> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* Required Headers */ + +#include "replace.h" +#include "libwbclient.h" + +struct wbc_ping_state { + struct winbindd_request req; +}; + +static void wbcPing_done(struct tevent_req *subreq); + +/** @brief Ping winbind to see if the service is up and running + * + * @param mem_ctx talloc context to allocate the request from + * @param ev event context to use for async operation + * @param wb_ctx winbind context to use + * + * @return Async request on successful dispatch of the request, NULL on error + */ + +struct tevent_req *wbcPing_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct wb_context *wb_ctx) +{ + struct tevent_req *req, *subreq; + struct wbc_ping_state *state; + + req = tevent_req_create(mem_ctx, &state, struct wbc_ping_state); + if (req == NULL) { + return NULL; + } + + ZERO_STRUCT(state->req); + + state->req.cmd = WINBINDD_PING; + subreq = wb_trans_send(state, ev, wb_ctx, false, &state->req); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + + tevent_req_set_callback(subreq, wbcPing_done, req); + return req; +} + +static void wbcPing_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_ping_state *state = tevent_req_data( + req, struct wbc_ping_state); + struct winbindd_response *resp; + wbcErr wbc_status; + + wbc_status = wb_trans_recv(subreq, state, &resp); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + TALLOC_FREE(resp); + + tevent_req_done(req); +} + +/** @brief Receive ping response from winbind + * + * @param req async request sent in #wbcPing_send + * + * @return NT_STATUS_OK on success, an error status on error. + */ + +wbcErr wbcPing_recv(struct tevent_req *req) +{ + wbcErr wbc_status; + + if (tevent_req_is_wbcerr(req, &wbc_status)) { + tevent_req_received(req); + return wbc_status; + } + + tevent_req_received(req); + return WBC_ERR_SUCCESS; +} + + +struct wbc_interface_version_state { + struct winbindd_request req; + uint32_t version; +}; + +static void wbcInterfaceVersion_done(struct tevent_req *subreq); + +/** + * @brief Request the interface version from winbind + * + * @param mem_ctx talloc context to allocate memory from + * @param ev tevent context to use for async requests + * @param wb_ctx winbind context + * + * @return tevevt_req on success, NULL on failure + */ + +struct tevent_req *wbcInterfaceVersion_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct wb_context *wb_ctx) +{ + struct tevent_req *req, *subreq; + struct wbc_interface_version_state *state; + + req = tevent_req_create(mem_ctx, &state, struct wbc_interface_version_state); + if (req == NULL) { + return NULL; + } + + ZERO_STRUCT(state->req); + state->req.cmd = WINBINDD_INTERFACE_VERSION; + + subreq = wb_trans_send(state, ev, wb_ctx, false, &state->req); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + + tevent_req_set_callback(subreq, wbcInterfaceVersion_done, req); + + return req; +} + +static void wbcInterfaceVersion_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_interface_version_state *state = tevent_req_data( + req, struct wbc_interface_version_state); + struct winbindd_response *resp; + wbcErr wbc_status; + + wbc_status = wb_trans_recv(subreq, state, &resp); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + state->version = resp->data.interface_version; + TALLOC_FREE(resp); + + tevent_req_done(req); +} + +/** + * @brief Receive the winbind interface version + * + * @param req tevent_req containing the request + * @param interface_version pointer to uint32_t to hold the interface + * version + * + * @return #wbcErr + */ + +wbcErr wbcInterfaceVersion_recv(struct tevent_req *req, + uint32_t *interface_version) +{ + struct wbc_interface_version_state *state = tevent_req_data( + req, struct wbc_interface_version_state); + wbcErr wbc_status; + + if (tevent_req_is_wbcerr(req, &wbc_status)) { + tevent_req_received(req); + return wbc_status; + } + + *interface_version = state->version; + + tevent_req_received(req); + return WBC_ERR_SUCCESS; +} + +struct wbc_info_state { + struct winbindd_request req; + char separator; + char *version_string; +}; + +static void wbcInfo_done(struct tevent_req *subreq); + +/** + * @brief Request information about the winbind service + * + * @param mem_ctx talloc context to allocate memory from + * @param ev tevent context to use for async requests + * @param wb_ctx winbind context + * + * @return tevent_req on success, NULL on failure + */ + +struct tevent_req *wbcInfo_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct wb_context *wb_ctx) +{ + struct tevent_req *req, *subreq; + struct wbc_info_state *state; + + req = tevent_req_create(mem_ctx, &state, struct wbc_info_state); + if (req == NULL) { + return NULL; + } + + ZERO_STRUCT(state->req); + state->req.cmd = WINBINDD_INFO; + + subreq = wb_trans_send(state, ev, wb_ctx, false, &state->req); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + + tevent_req_set_callback(subreq, wbcInfo_done, req); + return req; +} + +static void wbcInfo_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_info_state *state = tevent_req_data( + req, struct wbc_info_state); + struct winbindd_response *resp; + wbcErr wbc_status; + + wbc_status = wb_trans_recv(subreq, state, &resp); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + state->version_string = talloc_strdup(state, + resp->data.info.samba_version); + if (tevent_req_nomem(state->version_string, subreq)) { + return; + } + state->separator = resp->data.info.winbind_separator; + TALLOC_FREE(resp); + + tevent_req_done(req); +} + +/** + * @brief Receive information about the running winbind service + * + * @param req tevent_req containing the request + * @param mem_ctx talloc context to allocate memory from + * @param winbind_separator pointer to a char to hold the separator + * @param version_string pointer to a string to hold the version string + * + * @return #wbcErr + */ + +wbcErr wbcInfo_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + char *winbind_separator, + char **version_string) +{ + struct wbc_info_state *state = tevent_req_data( + req, struct wbc_info_state); + wbcErr wbc_status; + + if (tevent_req_is_wbcerr(req, &wbc_status)) { + tevent_req_received(req); + return wbc_status; + } + + *winbind_separator = state->separator; + *version_string = talloc_steal(mem_ctx, state->version_string); + + tevent_req_received(req); + return WBC_ERR_SUCCESS; +} + +struct wbc_netbios_name_state { + struct winbindd_request req; + char *netbios_name; +}; + +static void wbcNetbiosName_done(struct tevent_req *subreq); + +/** + * @brief Request the machine's netbios name + * + * @param mem_ctx talloc context to allocate memory from + * @param ev tevent context to use for async requests + * @param wb_ctx winbind context + * + * @return tevent_req on success, NULL on failure + */ + +struct tevent_req *wbcNetbiosName_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct wb_context *wb_ctx) +{ + struct tevent_req *req, *subreq; + struct wbc_netbios_name_state *state; + + req = tevent_req_create(mem_ctx, &state, struct wbc_netbios_name_state); + if (req == NULL) { + return NULL; + } + + ZERO_STRUCT(state->req); + state->req.cmd = WINBINDD_NETBIOS_NAME; + + subreq = wb_trans_send(state, ev, wb_ctx, false, &state->req); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + + tevent_req_set_callback(subreq, wbcNetbiosName_done, req); + return req; +} + +static void wbcNetbiosName_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_netbios_name_state *state = tevent_req_data( + req, struct wbc_netbios_name_state); + struct winbindd_response *resp; + wbcErr wbc_status; + + wbc_status = wb_trans_recv(subreq, state, &resp); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + state->netbios_name = talloc_strdup(state, + resp->data.info.samba_version); + if (tevent_req_nomem(state->netbios_name, subreq)) { + return; + } + TALLOC_FREE(resp); + + tevent_req_done(req); +} + +/** + * @brief Receive the machine's netbios name + * + * @param req tevent_req containing the request + * @param mem_ctx talloc context to allocate memory from + * @param netbios_name pointer to a string to hold the netbios name + * + * @return #wbcErr + */ + +wbcErr wbcNetbiosName_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + char **netbios_name) +{ + struct wbc_netbios_name_state *state = tevent_req_data( + req, struct wbc_netbios_name_state); + wbcErr wbc_status; + + if (tevent_req_is_wbcerr(req, &wbc_status)) { + tevent_req_received(req); + return wbc_status; + } + + *netbios_name = talloc_steal(mem_ctx, state->netbios_name); + + tevent_req_received(req); + return WBC_ERR_SUCCESS; +} + +struct wbc_domain_name_state { + struct winbindd_request req; + char *domain_name; +}; + +static void wbcDomainName_done(struct tevent_req *subreq); + +/** + * @brief Request the machine's domain name + * + * @param mem_ctx talloc context to allocate memory from + * @param ev tevent context to use for async requests + * @param wb_ctx winbind context + * + * @return tevent_req on success, NULL on failure + */ + +struct tevent_req *wbcDomainName_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct wb_context *wb_ctx) +{ + struct tevent_req *req, *subreq; + struct wbc_domain_name_state *state; + + req = tevent_req_create(mem_ctx, &state, struct wbc_domain_name_state); + if (req == NULL) { + return NULL; + } + + ZERO_STRUCT(state->req); + state->req.cmd = WINBINDD_DOMAIN_NAME; + + subreq = wb_trans_send(state, ev, wb_ctx, false, &state->req); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + + tevent_req_set_callback(subreq, wbcDomainName_done, req); + return req; +} + +static void wbcDomainName_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_domain_name_state *state = tevent_req_data( + req, struct wbc_domain_name_state); + struct winbindd_response *resp; + wbcErr wbc_status; + + wbc_status = wb_trans_recv(subreq, state, &resp); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + state->domain_name = talloc_strdup(state, resp->data.domain_name); + if (tevent_req_nomem(state->domain_name, subreq)) { + return; + } + TALLOC_FREE(resp); + + tevent_req_done(req); +} + +/** + * @brief Receive the machine's domain name + * + * @param req tevent_req containing the request + * @param mem_ctx talloc context to allocate memory from + * @param domain_name pointer to a string to hold the domain name + * + * @return #wbcErr + */ + +wbcErr wbcDomainName_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + char **domain_name) +{ + struct wbc_domain_name_state *state = tevent_req_data( + req, struct wbc_domain_name_state); + wbcErr wbc_status; + + if (tevent_req_is_wbcerr(req, &wbc_status)) { + tevent_req_received(req); + return wbc_status; + } + + *domain_name = talloc_steal(mem_ctx, state->domain_name); + + tevent_req_received(req); + return WBC_ERR_SUCCESS; +} + +struct wbc_interface_details_state { + struct tevent_context *ev; + struct wb_context *wb_ctx; + struct wbcDomainInfo *dinfo; + struct wbcInterfaceDetails *details; +}; + +static void wbcInterfaceDetails_version(struct tevent_req *subreq); +static void wbcInterfaceDetails_info(struct tevent_req *subreq); +static void wbcInterfaceDetails_netbios_name(struct tevent_req *subreq); +static void wbcInterfaceDetails_domain_name(struct tevent_req *subreq); +static void wbcInterfaceDetails_domain_info(struct tevent_req *subreq); + +/** + * @brief Request some useful details about the winbind service + * + * @param mem_ctx talloc context to allocate memory from + * @param ev tevent context to use for async requests + * @param wb_ctx winbind context + * + * @return tevent_req on success, NULL on failure + */ + +struct tevent_req *wbcInterfaceDetails_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct wb_context *wb_ctx) +{ + struct tevent_req *req, *subreq; + struct wbc_interface_details_state *state; + + req = tevent_req_create(mem_ctx, &state, + struct wbc_interface_details_state); + if (req == NULL) { + return NULL; + } + + state->ev = ev; + state->wb_ctx = wb_ctx; + state->details = talloc(state, struct wbcInterfaceDetails); + if (tevent_req_nomem(state->details, req)) { + return tevent_req_post(req, ev); + } + + subreq = wbcInterfaceVersion_send(state, ev, wb_ctx); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + + tevent_req_set_callback(subreq, wbcInterfaceDetails_version, req); + return req; +} + +static void wbcInterfaceDetails_version(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_interface_details_state *state = tevent_req_data( + req, struct wbc_interface_details_state); + wbcErr wbc_status; + + + wbc_status = wbcInterfaceVersion_recv(subreq, + &state->details->interface_version); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + + subreq = wbcInfo_send(state, state->ev, state->wb_ctx); + if (tevent_req_nomem(subreq, req)) { + return; + } + + tevent_req_set_callback(subreq, wbcInterfaceDetails_info, req); +} + +static void wbcInterfaceDetails_info(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_interface_details_state *state = tevent_req_data( + req, struct wbc_interface_details_state); + wbcErr wbc_status; + + wbc_status = wbcInfo_recv(subreq, state->details, + &state->details->winbind_separator, + &state->details->winbind_version); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + + subreq = wbcNetbiosName_send(state, state->ev, state->wb_ctx); + if (tevent_req_nomem(subreq, req)) { + return; + } + + tevent_req_set_callback(subreq, wbcInterfaceDetails_netbios_name, req); +} + +static void wbcInterfaceDetails_netbios_name(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_interface_details_state *state = tevent_req_data( + req, struct wbc_interface_details_state); + wbcErr wbc_status; + + wbc_status = wbcNetbiosName_recv(subreq, state->details, + &state->details->netbios_name); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + + subreq = wbcDomainName_send(state, state->ev, state->wb_ctx); + if (tevent_req_nomem(subreq, req)) { + return; + } + + tevent_req_set_callback(subreq, wbcInterfaceDetails_domain_name, req); +} + +static void wbcInterfaceDetails_domain_name(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_interface_details_state *state = tevent_req_data( + req, struct wbc_interface_details_state); + wbcErr wbc_status; + + wbc_status = wbcDomainName_recv(subreq, state->details, + &state->details->netbios_domain); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + + subreq = wbcDomainInfo_send(state, state->ev, state->wb_ctx, + state->details->netbios_domain); + if (tevent_req_nomem(subreq, req)) { + return; + } + + tevent_req_set_callback(subreq, wbcInterfaceDetails_domain_info, req); +} + +static void wbcInterfaceDetails_domain_info(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_interface_details_state *state = tevent_req_data( + req, struct wbc_interface_details_state); + struct wbcDomainInfo *domain; + wbcErr wbc_status; + + wbc_status = wbcDomainInfo_recv(subreq, state, &domain); + TALLOC_FREE(subreq); + if (wbc_status == WBC_ERR_DOMAIN_NOT_FOUND) { + tevent_req_done(req); + return; + } + + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + state->details->dns_domain = talloc_strdup(state->details, + domain->dns_name); + if (tevent_req_nomem(state->details->dns_domain, req)) { + return; + } + + TALLOC_FREE(domain); + tevent_req_done(req); +} + +/** + * @brief Receive useful information about the winbind service + * + * @param req tevent_req containing the request + * @param mem_ctx talloc context to allocate memory from + * @param *details pointer to hold the struct wbcInterfaceDetails + * + * @return #wbcErr + */ + +wbcErr wbcInterfaceDetails_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + struct wbcInterfaceDetails **details) +{ + struct wbc_interface_details_state *state = tevent_req_data( + req, struct wbc_interface_details_state); + wbcErr wbc_status; + + if (tevent_req_is_wbcerr(req, &wbc_status)) { + tevent_req_received(req); + return wbc_status; + } + + *details = talloc_steal(mem_ctx, state->details); + + tevent_req_received(req); + return WBC_ERR_SUCCESS; +} + +struct wbc_domain_info_state { + struct winbindd_request req; + struct wbcDomainInfo *info; +}; + +static void wbcDomainInfo_done(struct tevent_req *subreq); + +/** + * @brief Request status of a given trusted domain + * + * @param mem_ctx talloc context to allocate memory from + * @param ev tevent context to use for async requests + * @param wb_ctx winbind context + * @param domain domain to request status from + * + * @return tevent_req on success, NULL on failure + */ + +struct tevent_req *wbcDomainInfo_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct wb_context *wb_ctx, + const char *domain) +{ + struct tevent_req *req, *subreq; + struct wbc_domain_info_state *state; + + if (!domain) { + return NULL; + } + + req = tevent_req_create(mem_ctx, &state, struct wbc_domain_info_state); + if (req == NULL) { + return NULL; + } + + state->info = talloc(state, struct wbcDomainInfo); + if (tevent_req_nomem(state->info, req)) { + return tevent_req_post(req, ev); + } + + ZERO_STRUCT(state->req); + + strncpy(state->req.domain_name, domain, + sizeof(state->req.domain_name)-1); + + state->req.cmd = WINBINDD_DOMAIN_INFO; + + subreq = wb_trans_send(state, ev, wb_ctx, false, &state->req); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + + tevent_req_set_callback(subreq, wbcDomainInfo_done, req); + return req; +} + +static void wbcDomainInfo_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_domain_info_state *state = tevent_req_data( + req, struct wbc_domain_info_state); + struct winbindd_response *resp; + wbcErr wbc_status; + + wbc_status = wb_trans_recv(subreq, state, &resp); + TALLOC_FREE(subreq); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + + state->info->short_name = talloc_strdup(state->info, + resp->data.domain_info.name); + if (tevent_req_nomem(state->info->short_name, req)) { + return; + } + + state->info->dns_name = talloc_strdup(state->info, + resp->data.domain_info.alt_name); + if (tevent_req_nomem(state->info->dns_name, req)) { + return; + } + + wbc_status = wbcStringToSid(resp->data.domain_info.sid, + &state->info->sid); + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + + if (resp->data.domain_info.native_mode) { + state->info->domain_flags |= WBC_DOMINFO_DOMAIN_NATIVE; + } + if (resp->data.domain_info.active_directory) { + state->info->domain_flags |= WBC_DOMINFO_DOMAIN_AD; + } + if (resp->data.domain_info.primary) { + state->info->domain_flags |= WBC_DOMINFO_DOMAIN_PRIMARY; + } + + TALLOC_FREE(resp); + + tevent_req_done(req); +} + +/** + * @brief Receive information about a trusted domain + * + * @param req tevent_req containing the request + * @param mem_ctx talloc context to allocate memory from + * @param *dinfo pointer to returned struct wbcDomainInfo + * + * @return #wbcErr + */ + +wbcErr wbcDomainInfo_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + struct wbcDomainInfo **dinfo) +{ + struct wbc_domain_info_state *state = tevent_req_data( + req, struct wbc_domain_info_state); + wbcErr wbc_status; + + if (tevent_req_is_wbcerr(req, &wbc_status)) { + tevent_req_received(req); + return wbc_status; + } + + if (dinfo == NULL) { + tevent_req_received(req); + return WBC_ERR_INVALID_PARAM; + } + + *dinfo = talloc_steal(mem_ctx, state->info); + + tevent_req_received(req); + return WBC_ERR_SUCCESS; +} |