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https://github.com/samba-team/samba.git
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Add infrastructure to transfer winbindd_request/response asynchronously
This commit is contained in:
Volker Lendecke
parent
7fbb64d726
commit
2bd8a6e21e
@ -1036,6 +1036,7 @@ IDMAP_ADEX_OBJ = \
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WINBINDD_OBJ1 = \
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winbindd/winbindd.o \
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winbindd/winbindd_reqtrans.o \
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winbindd/winbindd_user.o \
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winbindd/winbindd_group.o \
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winbindd/winbindd_util.o \
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@ -67,6 +67,27 @@ void winbind_check_sighup(const char *lfile);
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void winbind_check_sigterm(bool in_parent);
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int main(int argc, char **argv, char **envp);
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/* The following definitions come from winbindd/winbindd_reqtrans.c */
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struct async_req *wb_req_read_send(TALLOC_CTX *mem_ctx,
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struct event_context *ev,
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int fd, size_t max_extra_data);
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NTSTATUS wb_req_read_recv(struct async_req *req, TALLOC_CTX *mem_ctx,
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struct winbindd_request **preq);
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struct async_req *wb_req_write_send(TALLOC_CTX *mem_ctx,
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struct event_context *ev, int fd,
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struct winbindd_request *wb_req);
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NTSTATUS wb_req_write_recv(struct async_req *req);
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struct async_req *wb_resp_read_send(TALLOC_CTX *mem_ctx,
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struct event_context *ev, int fd);
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NTSTATUS wb_resp_read_recv(struct async_req *req, TALLOC_CTX *mem_ctx,
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struct winbindd_response **presp);
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struct async_req *wb_resp_write_send(TALLOC_CTX *mem_ctx,
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struct event_context *ev, int fd,
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struct winbindd_response *wb_resp);
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NTSTATUS wb_resp_write_recv(struct async_req *req);
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/* The following definitions come from winbindd/winbindd_ads.c */
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561
source3/winbindd/winbindd_reqtrans.c
Normal file
561
source3/winbindd/winbindd_reqtrans.c
Normal file
@ -0,0 +1,561 @@
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/*
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Unix SMB/CIFS implementation.
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Async transfer of winbindd_request and _response structs
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Copyright (C) Volker Lendecke 2008
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "winbindd.h"
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_WINBIND
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struct req_read_state {
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struct winbindd_request *wb_req;
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struct event_context *ev;
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size_t max_extra_data;
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int fd;
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};
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static void wb_req_read_len(struct async_req *subreq);
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static void wb_req_read_main(struct async_req *subreq);
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static void wb_req_read_extra(struct async_req *subreq);
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struct async_req *wb_req_read_send(TALLOC_CTX *mem_ctx,
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struct event_context *ev,
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int fd, size_t max_extra_data)
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{
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struct async_req *result, *subreq;
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struct req_read_state *state;
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result = async_req_new(mem_ctx, ev);
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if (result == NULL) {
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return NULL;
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}
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state = talloc(result, struct req_read_state);
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if (state == NULL) {
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goto nomem;
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}
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result->private_data = state;
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state->fd = fd;
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state->ev = ev;
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state->max_extra_data = max_extra_data;
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state->wb_req = talloc(state, struct winbindd_request);
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if (state->wb_req == NULL) {
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goto nomem;
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}
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subreq = recvall_send(state, ev, state->fd, &(state->wb_req->length),
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sizeof(state->wb_req->length), 0);
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if (subreq == NULL) {
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goto nomem;
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}
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subreq->async.fn = wb_req_read_len;
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subreq->async.priv = result;
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return result;
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nomem:
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TALLOC_FREE(result);
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return NULL;
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}
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static void wb_req_read_len(struct async_req *subreq)
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{
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struct async_req *req = talloc_get_type_abort(
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subreq->async.priv, struct async_req);
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struct req_read_state *state = talloc_get_type_abort(
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req->private_data, struct req_read_state);
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NTSTATUS status;
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status = recvall_recv(subreq);
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TALLOC_FREE(subreq);
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if (!NT_STATUS_IS_OK(status)) {
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async_req_error(req, status);
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return;
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}
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if (state->wb_req->length != sizeof(struct winbindd_request)) {
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DEBUG(0, ("wb_req_read_len: Invalid request size received: "
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"%d (expected %d)\n", (int)state->wb_req->length,
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(int)sizeof(struct winbindd_request)));
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async_req_error(req, NT_STATUS_INVALID_BUFFER_SIZE);
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return;
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}
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subreq = recvall_send(
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req, state->ev, state->fd, (uint32 *)(state->wb_req)+1,
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sizeof(struct winbindd_request) - sizeof(uint32), 0);
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if (subreq == NULL) {
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async_req_error(req, NT_STATUS_NO_MEMORY);
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return;
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}
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subreq->async.fn = wb_req_read_main;
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subreq->async.priv = req;
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}
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static void wb_req_read_main(struct async_req *subreq)
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{
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struct async_req *req = talloc_get_type_abort(
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subreq->async.priv, struct async_req);
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struct req_read_state *state = talloc_get_type_abort(
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req->private_data, struct req_read_state);
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NTSTATUS status;
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status = recvall_recv(subreq);
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TALLOC_FREE(subreq);
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if (!NT_STATUS_IS_OK(status)) {
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async_req_error(req, status);
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return;
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}
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if ((state->max_extra_data != 0)
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&& (state->wb_req->extra_len > state->max_extra_data)) {
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DEBUG(3, ("Got request with %d bytes extra data on "
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"unprivileged socket\n",
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(int)state->wb_req->extra_len));
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async_req_error(req, NT_STATUS_INVALID_BUFFER_SIZE);
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return;
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}
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if (state->wb_req->extra_len == 0) {
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async_req_done(req);
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return;
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}
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state->wb_req->extra_data.data = TALLOC_ARRAY(
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state->wb_req, char, state->wb_req->extra_len + 1);
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if (state->wb_req->extra_data.data == NULL) {
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async_req_error(req, NT_STATUS_NO_MEMORY);
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return;
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}
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state->wb_req->extra_data.data[state->wb_req->extra_len] = 0;
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subreq = recvall_send(
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req, state->ev, state->fd, state->wb_req->extra_data.data,
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state->wb_req->extra_len, 0);
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if (subreq == NULL) {
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async_req_error(req, NT_STATUS_NO_MEMORY);
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return;
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}
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subreq->async.fn = wb_req_read_extra;
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subreq->async.priv = req;
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}
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static void wb_req_read_extra(struct async_req *subreq)
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{
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struct async_req *req = talloc_get_type_abort(
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subreq->async.priv, struct async_req);
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NTSTATUS status;
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status = recvall_recv(subreq);
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TALLOC_FREE(subreq);
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if (!NT_STATUS_IS_OK(status)) {
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async_req_error(req, status);
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return;
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}
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async_req_done(req);
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}
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NTSTATUS wb_req_read_recv(struct async_req *req, TALLOC_CTX *mem_ctx,
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struct winbindd_request **preq)
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{
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struct req_read_state *state = talloc_get_type_abort(
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req->private_data, struct req_read_state);
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SMB_ASSERT(req->state >= ASYNC_REQ_DONE);
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if (req->state == ASYNC_REQ_ERROR) {
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return req->status;
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}
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*preq = talloc_move(mem_ctx, &state->wb_req);
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return NT_STATUS_OK;
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}
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struct req_write_state {
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struct winbindd_request *wb_req;
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struct event_context *ev;
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int fd;
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};
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static void wb_req_write_main(struct async_req *subreq);
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static void wb_req_write_extra(struct async_req *subreq);
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struct async_req *wb_req_write_send(TALLOC_CTX *mem_ctx,
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struct event_context *ev, int fd,
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struct winbindd_request *wb_req)
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{
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struct async_req *result, *subreq;
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struct req_write_state *state;
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result = async_req_new(mem_ctx, ev);
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if (result == NULL) {
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return NULL;
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}
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state = talloc(result, struct req_write_state);
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if (state == NULL) {
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goto nomem;
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}
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result->private_data = state;
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state->fd = fd;
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state->ev = ev;
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state->wb_req = wb_req;
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subreq = sendall_send(state, state->ev, state->fd, state->wb_req,
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sizeof(struct winbindd_request), 0);
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if (subreq == NULL) {
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goto nomem;
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}
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subreq->async.fn = wb_req_write_main;
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subreq->async.priv = result;
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return result;
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nomem:
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TALLOC_FREE(result);
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return NULL;
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}
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static void wb_req_write_main(struct async_req *subreq)
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{
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struct async_req *req = talloc_get_type_abort(
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subreq->async.priv, struct async_req);
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struct req_write_state *state = talloc_get_type_abort(
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req->private_data, struct req_write_state);
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NTSTATUS status;
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status = sendall_recv(subreq);
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TALLOC_FREE(subreq);
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if (!NT_STATUS_IS_OK(status)) {
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async_req_error(req, status);
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return;
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}
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if (state->wb_req->extra_len == 0) {
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async_req_done(req);
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return;
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}
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subreq = sendall_send(state, state->ev, state->fd,
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state->wb_req->extra_data.data,
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state->wb_req->extra_len, 0);
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if (subreq == NULL) {
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async_req_error(req, NT_STATUS_NO_MEMORY);
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return;
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}
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subreq->async.fn = wb_req_write_extra;
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subreq->async.priv = req;
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}
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static void wb_req_write_extra(struct async_req *subreq)
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{
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struct async_req *req = talloc_get_type_abort(
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subreq->async.priv, struct async_req);
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NTSTATUS status;
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status = sendall_recv(subreq);
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TALLOC_FREE(subreq);
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if (!NT_STATUS_IS_OK(status)) {
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async_req_error(req, status);
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return;
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}
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async_req_done(req);
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}
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NTSTATUS wb_req_write_recv(struct async_req *req)
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{
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SMB_ASSERT(req->state >= ASYNC_REQ_DONE);
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if (req->state == ASYNC_REQ_ERROR) {
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return req->status;
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}
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return NT_STATUS_OK;
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}
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struct resp_read_state {
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struct winbindd_response *wb_resp;
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struct event_context *ev;
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size_t max_extra_data;
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int fd;
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};
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static void wb_resp_read_len(struct async_req *subreq);
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static void wb_resp_read_main(struct async_req *subreq);
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static void wb_resp_read_extra(struct async_req *subreq);
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struct async_req *wb_resp_read_send(TALLOC_CTX *mem_ctx,
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struct event_context *ev, int fd)
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{
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struct async_req *result, *subreq;
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struct resp_read_state *state;
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result = async_req_new(mem_ctx, ev);
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if (result == NULL) {
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return NULL;
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}
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state = talloc(result, struct resp_read_state);
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if (state == NULL) {
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goto nomem;
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}
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result->private_data = state;
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state->fd = fd;
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state->ev = ev;
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state->wb_resp = talloc(state, struct winbindd_response);
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if (state->wb_resp == NULL) {
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goto nomem;
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}
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subreq = recvall_send(state, ev, state->fd, &(state->wb_resp->length),
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sizeof(state->wb_resp->length), 0);
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if (subreq == NULL) {
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goto nomem;
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}
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subreq->async.fn = wb_resp_read_len;
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subreq->async.priv = result;
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return result;
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nomem:
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TALLOC_FREE(result);
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return NULL;
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}
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static void wb_resp_read_len(struct async_req *subreq)
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{
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struct async_req *req = talloc_get_type_abort(
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subreq->async.priv, struct async_req);
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struct resp_read_state *state = talloc_get_type_abort(
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req->private_data, struct resp_read_state);
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NTSTATUS status;
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status = recvall_recv(subreq);
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TALLOC_FREE(subreq);
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if (!NT_STATUS_IS_OK(status)) {
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async_req_error(req, status);
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return;
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}
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if (state->wb_resp->length < sizeof(struct winbindd_response)) {
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DEBUG(0, ("wb_resp_read_len: Invalid response size received: "
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"%d (expected at least%d)\n",
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(int)state->wb_resp->length,
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(int)sizeof(struct winbindd_response)));
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async_req_error(req, NT_STATUS_INVALID_BUFFER_SIZE);
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return;
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}
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subreq = recvall_send(
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req, state->ev, state->fd, (uint32 *)(state->wb_resp)+1,
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sizeof(struct winbindd_response) - sizeof(uint32), 0);
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if (subreq == NULL) {
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async_req_error(req, NT_STATUS_NO_MEMORY);
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return;
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}
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subreq->async.fn = wb_resp_read_main;
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subreq->async.priv = req;
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}
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static void wb_resp_read_main(struct async_req *subreq)
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{
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struct async_req *req = talloc_get_type_abort(
|
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subreq->async.priv, struct async_req);
|
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struct resp_read_state *state = talloc_get_type_abort(
|
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req->private_data, struct resp_read_state);
|
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NTSTATUS status;
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size_t extra_len;
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status = recvall_recv(subreq);
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TALLOC_FREE(subreq);
|
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if (!NT_STATUS_IS_OK(status)) {
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async_req_error(req, status);
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return;
|
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}
|
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|
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extra_len = state->wb_resp->length - sizeof(struct winbindd_response);
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if (extra_len == 0) {
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async_req_done(req);
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return;
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}
|
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state->wb_resp->extra_data.data = TALLOC_ARRAY(
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state->wb_resp, char, extra_len+1);
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if (state->wb_resp->extra_data.data == NULL) {
|
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async_req_error(req, NT_STATUS_NO_MEMORY);
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return;
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}
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((char *)state->wb_resp->extra_data.data)[extra_len] = 0;
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subreq = recvall_send(
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req, state->ev, state->fd, state->wb_resp->extra_data.data,
|
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extra_len, 0);
|
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if (subreq == NULL) {
|
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async_req_error(req, NT_STATUS_NO_MEMORY);
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return;
|
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}
|
||||
|
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subreq->async.fn = wb_resp_read_extra;
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subreq->async.priv = req;
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}
|
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|
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static void wb_resp_read_extra(struct async_req *subreq)
|
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{
|
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struct async_req *req = talloc_get_type_abort(
|
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subreq->async.priv, struct async_req);
|
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NTSTATUS status;
|
||||
|
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status = recvall_recv(subreq);
|
||||
TALLOC_FREE(subreq);
|
||||
if (!NT_STATUS_IS_OK(status)) {
|
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async_req_error(req, status);
|
||||
return;
|
||||
}
|
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async_req_done(req);
|
||||
}
|
||||
|
||||
|
||||
NTSTATUS wb_resp_read_recv(struct async_req *req, TALLOC_CTX *mem_ctx,
|
||||
struct winbindd_response **presp)
|
||||
{
|
||||
struct resp_read_state *state = talloc_get_type_abort(
|
||||
req->private_data, struct resp_read_state);
|
||||
|
||||
SMB_ASSERT(req->state >= ASYNC_REQ_DONE);
|
||||
if (req->state == ASYNC_REQ_ERROR) {
|
||||
return req->status;
|
||||
}
|
||||
|
||||
*presp = talloc_move(mem_ctx, &state->wb_resp);
|
||||
return NT_STATUS_OK;
|
||||
}
|
||||
|
||||
struct resp_write_state {
|
||||
struct winbindd_response *wb_resp;
|
||||
struct event_context *ev;
|
||||
int fd;
|
||||
};
|
||||
|
||||
static void wb_resp_write_main(struct async_req *subreq);
|
||||
static void wb_resp_write_extra(struct async_req *subreq);
|
||||
|
||||
struct async_req *wb_resp_write_send(TALLOC_CTX *mem_ctx,
|
||||
struct event_context *ev, int fd,
|
||||
struct winbindd_response *wb_resp)
|
||||
{
|
||||
struct async_req *result, *subreq;
|
||||
struct resp_write_state *state;
|
||||
|
||||
result = async_req_new(mem_ctx, ev);
|
||||
if (result == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
state = talloc(result, struct resp_write_state);
|
||||
if (state == NULL) {
|
||||
goto nomem;
|
||||
}
|
||||
result->private_data = state;
|
||||
|
||||
state->fd = fd;
|
||||
state->ev = ev;
|
||||
state->wb_resp = wb_resp;
|
||||
|
||||
subreq = sendall_send(state, state->ev, state->fd, state->wb_resp,
|
||||
sizeof(struct winbindd_response), 0);
|
||||
if (subreq == NULL) {
|
||||
goto nomem;
|
||||
}
|
||||
|
||||
subreq->async.fn = wb_resp_write_main;
|
||||
subreq->async.priv = result;
|
||||
return result;
|
||||
|
||||
nomem:
|
||||
TALLOC_FREE(result);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static void wb_resp_write_main(struct async_req *subreq)
|
||||
{
|
||||
struct async_req *req = talloc_get_type_abort(
|
||||
subreq->async.priv, struct async_req);
|
||||
struct resp_write_state *state = talloc_get_type_abort(
|
||||
req->private_data, struct resp_write_state);
|
||||
NTSTATUS status;
|
||||
|
||||
status = sendall_recv(subreq);
|
||||
TALLOC_FREE(subreq);
|
||||
if (!NT_STATUS_IS_OK(status)) {
|
||||
async_req_error(req, status);
|
||||
return;
|
||||
}
|
||||
|
||||
if (state->wb_resp->length == sizeof(struct winbindd_response)) {
|
||||
async_req_done(req);
|
||||
return;
|
||||
}
|
||||
|
||||
subreq = sendall_send(
|
||||
state, state->ev, state->fd,
|
||||
state->wb_resp->extra_data.data,
|
||||
state->wb_resp->length - sizeof(struct winbindd_response), 0);
|
||||
if (subreq == 0) {
|
||||
async_req_error(req, NT_STATUS_NO_MEMORY);
|
||||
return;
|
||||
}
|
||||
|
||||
subreq->async.fn = wb_resp_write_extra;
|
||||
subreq->async.priv = req;
|
||||
}
|
||||
|
||||
static void wb_resp_write_extra(struct async_req *subreq)
|
||||
{
|
||||
struct async_req *req = talloc_get_type_abort(
|
||||
subreq->async.priv, struct async_req);
|
||||
NTSTATUS status;
|
||||
|
||||
status = sendall_recv(subreq);
|
||||
TALLOC_FREE(subreq);
|
||||
if (!NT_STATUS_IS_OK(status)) {
|
||||
async_req_error(req, status);
|
||||
return;
|
||||
}
|
||||
|
||||
async_req_done(req);
|
||||
}
|
||||
|
||||
NTSTATUS wb_resp_write_recv(struct async_req *req)
|
||||
{
|
||||
SMB_ASSERT(req->state >= ASYNC_REQ_DONE);
|
||||
if (req->state == ASYNC_REQ_ERROR) {
|
||||
return req->status;
|
||||
}
|
||||
|
||||
return NT_STATUS_OK;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user