From 446b4aa17c03993a0fa0c77bd7e8bdec938be991 Mon Sep 17 00:00:00 2001 From: Kai Blin Date: Thu, 2 Apr 2009 09:57:40 +0200 Subject: libwbclient: Implement wbcUidToSid_send/recv --- nsswitch/libwbclient/wbc_async.h | 6 +++ nsswitch/libwbclient/wbc_idmap.c | 110 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 116 insertions(+) diff --git a/nsswitch/libwbclient/wbc_async.h b/nsswitch/libwbclient/wbc_async.h index 6e90ad722c..043b303632 100644 --- a/nsswitch/libwbclient/wbc_async.h +++ b/nsswitch/libwbclient/wbc_async.h @@ -100,6 +100,12 @@ struct tevent_req *wbcSidToUid_send(TALLOC_CTX *mem_ctx, const struct wbcDomainSid *sid); wbcErr wbcSidToUid_recv(struct tevent_req *req, uid_t *puid); +struct tevent_req *wbcUidToSid_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct wb_context *wb_ctx, + uid_t uid); +wbcErr wbcUidToSid_recv(struct tevent_req *req, struct wbcDomainSid *psid); + /* Async functions from wbc_util.c */ struct tevent_req *wbcPing_send(TALLOC_CTX *mem_ctx, diff --git a/nsswitch/libwbclient/wbc_idmap.c b/nsswitch/libwbclient/wbc_idmap.c index 5283339ff3..353bd83665 100644 --- a/nsswitch/libwbclient/wbc_idmap.c +++ b/nsswitch/libwbclient/wbc_idmap.c @@ -171,6 +171,116 @@ wbcErr wbcQuerySidToUid(const struct wbcDomainSid *sid, return WBC_ERR_NOT_IMPLEMENTED; } +struct wbc_uid_to_sid_state { + struct winbindd_request req; + struct wbcDomainSid *sid; +}; + +static void wbcUidToSid_done(struct tevent_req *subreq); + +/** + * @brief Request a Windows SID for an Unix uid, allocating an SID if needed + * + * @param mem_ctx talloc context to allocate the request from + * @param ev tevent context to use for async operation + * @param wb_ctx winbind context to use + * @param uid uid to be resolved to a SID + * + * @return tevent_req on success, NULL on error + */ + +struct tevent_req *wbcUidToSid_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct wb_context *wb_ctx, + uid_t uid) +{ + struct tevent_req *req, *subreq; + struct wbc_uid_to_sid_state *state; + + req = tevent_req_create(mem_ctx, &state, struct wbc_uid_to_sid_state); + if (req == NULL) { + return NULL; + } + + ZERO_STRUCT(state->req); + + state->req.cmd = WINBINDD_UID_TO_SID; + state->req.data.uid = uid; + + 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, wbcUidToSid_done, req); + return req; +} + +static void wbcUidToSid_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct wbc_uid_to_sid_state *state = tevent_req_data( + req, struct wbc_uid_to_sid_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->sid = talloc(state, struct wbcDomainSid); + if (state->sid == NULL) { + TALLOC_FREE(resp); + tevent_req_error(req, WBC_ERR_NO_MEMORY); + return; + } + + wbc_status = wbcStringToSid(resp->data.sid.sid, state->sid); + TALLOC_FREE(resp); + + if (!WBC_ERROR_IS_OK(wbc_status)) { + tevent_req_error(req, wbc_status); + return; + } + + tevent_req_done(req); +} + +/** + * @brief Receive a Unix uid mapped to a Windows SID + * + * @param req tevent_req containing the request + * @param *psid pointer to hold the resolved SID + * + * @return #wbcErr + */ + +wbcErr wbcUidToSid_recv(struct tevent_req *req, struct wbcDomainSid *psid) +{ + struct wbc_uid_to_sid_state *state = tevent_req_data( + req, struct wbc_uid_to_sid_state); + wbcErr wbc_status; + + if (psid == NULL) { + tevent_req_received(req); + return WBC_ERR_INVALID_PARAM; + } + + if (tevent_req_is_wbcerr(req, &wbc_status)) { + tevent_req_received(req); + return wbc_status; + } + + memcpy(psid, state->sid, sizeof(struct wbcDomainSid)); + + tevent_req_received(req); + return WBC_ERR_SUCCESS; +} + /* Convert a Unix uid to a Windows SID, allocating a SID if needed */ wbcErr wbcUidToSid(uid_t uid, struct wbcDomainSid *sid) { -- cgit