mirror of
https://github.com/samba-team/samba.git
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313 lines
7.4 KiB
C
313 lines
7.4 KiB
C
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/*
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* Unix SMB/CIFS implementation.
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* Test async ctdb_req_send/recv
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* Copyright (C) Volker Lendecke 2020
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*
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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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*
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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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*
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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 "torture/proto.h"
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#include "ctdbd_conn.h"
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#include "lib/cluster_support.h"
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#include "ctdb/include/ctdb_protocol.h"
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#include "lib/util/tevent_unix.h"
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extern int torture_nprocs;
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extern int torture_numops;
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struct ctdb_echo_state {
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struct ctdb_req_control_old req;
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struct iovec iov[2];
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TDB_DATA echodata;
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};
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static void ctdb_echo_done(struct tevent_req *subreq);
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static struct tevent_req *ctdb_echo_send(
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TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct ctdbd_connection *conn,
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uint32_t delay)
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{
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struct tevent_req *req = NULL, *subreq = NULL;
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struct ctdb_echo_state *state = NULL;
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struct ctdb_req_header *hdr = NULL;
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uint32_t datalen;
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req = tevent_req_create(
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mem_ctx, &state, struct ctdb_echo_state);
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if (req == NULL) {
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return NULL;
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}
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hdr = &state->req.hdr;
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ctdbd_prep_hdr_next_reqid(conn, hdr);
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hdr->operation = CTDB_REQ_CONTROL;
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state->req.opcode = CTDB_CONTROL_ECHO_DATA;
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state->iov[0] = (struct iovec) {
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.iov_base = &state->req,
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.iov_len = offsetof(struct ctdb_req_control_old, data),
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};
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datalen = generate_random() % 1024;
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state->echodata.dptr = talloc_array(state, uint8_t, datalen+8);
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if (tevent_req_nomem(state->echodata.dptr, req)) {
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return tevent_req_post(req, ev);
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}
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state->echodata.dsize = talloc_get_size(state->echodata.dptr);
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generate_random_buffer(
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state->echodata.dptr, state->echodata.dsize);
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memcpy(state->echodata.dptr, &delay, sizeof(delay));
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memcpy(state->echodata.dptr+4, &datalen, sizeof(datalen));
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state->req.datalen = state->echodata.dsize;
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state->iov[1] = (struct iovec) {
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.iov_base = state->echodata.dptr,
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.iov_len = state->echodata.dsize,
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};
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hdr->length =
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offsetof(struct ctdb_req_control_old, data) +
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state->req.datalen;
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subreq = ctdbd_req_send(
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state, ev, conn, state->iov, ARRAY_SIZE(state->iov));
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if (tevent_req_nomem(subreq, req)) {
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return tevent_req_post(req, ev);
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}
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tevent_req_set_callback(subreq, ctdb_echo_done, req);
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return req;
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}
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static void ctdb_echo_done(struct tevent_req *subreq)
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{
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struct tevent_req *req = tevent_req_callback_data(
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subreq, struct tevent_req);
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struct ctdb_echo_state *state = tevent_req_data(
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req, struct ctdb_echo_state);
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struct ctdb_req_header *hdr = NULL;
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struct ctdb_reply_control_old *reply = NULL;
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int cmp, ret;
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ret = ctdbd_req_recv(subreq, state, &hdr);
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TALLOC_FREE(subreq);
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if (tevent_req_error(req, ret)) {
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printf("ctdbd_req_recv(%"PRIu32") returned %d (%s)\n",
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state->req.hdr.reqid,
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ret,
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strerror(ret));
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return;
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}
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if (hdr->operation != CTDB_REPLY_CONTROL) {
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printf("Expected CTDB_REPLY_CONTROL, got %"PRIu32"\n",
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hdr->operation);
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tevent_req_error(req, EIO);
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return;
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}
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reply = (struct ctdb_reply_control_old *)hdr;
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if (reply->status != 0) {
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printf("reply->status = %"PRIi32"\n", reply->status);
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tevent_req_error(req, EIO);
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return;
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}
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if (reply->datalen != state->req.datalen) {
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printf("state->echodata.dsize=%zu datalen=%"PRIu32"\n",
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state->echodata.dsize,
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reply->datalen);
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tevent_req_error(req, EIO);
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return;
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}
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cmp = memcmp(reply->data,
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state->echodata.dptr,
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state->echodata.dsize);
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if (cmp != 0) {
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printf("data mismatch\n");
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tevent_req_error(req, EIO);
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return;
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}
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TALLOC_FREE(reply);
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tevent_req_done(req);
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}
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static int ctdb_echo_recv(struct tevent_req *req)
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{
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return tevent_req_simple_recv_unix(req);
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}
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struct ctdb_ping_flood_state {
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struct tevent_context *ev;
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struct ctdbd_connection *conn;
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size_t num_running;
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bool done;
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};
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static void ctdb_ping_flood_next(struct tevent_req *subreq);
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static void ctdb_ping_flood_done(struct tevent_req *subreq);
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static struct tevent_req *ctdb_ping_flood_send(
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TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct ctdbd_connection *conn,
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size_t num_parallel,
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unsigned usecs)
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{
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struct tevent_req *req = NULL, *subreq = NULL;
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struct ctdb_ping_flood_state *state = NULL;
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size_t i;
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req = tevent_req_create(
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mem_ctx, &state, struct ctdb_ping_flood_state);
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if (req == NULL) {
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return NULL;
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}
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state->ev = ev;
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state->conn = conn;
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for (i=0; i<num_parallel; i++) {
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subreq = ctdb_echo_send(
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state,
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state->ev,
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state->conn,
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generate_random() % 10);
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if (tevent_req_nomem(subreq, req)) {
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return tevent_req_post(req, ev);
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}
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tevent_req_set_callback(subreq, ctdb_ping_flood_next, req);
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}
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state->num_running = num_parallel;
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subreq = tevent_wakeup_send(
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state,
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ev,
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tevent_timeval_current_ofs(0, usecs));
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if (tevent_req_nomem(subreq, req)) {
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return tevent_req_post(req, ev);
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}
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tevent_req_set_callback(subreq, ctdb_ping_flood_done, req);
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return req;
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}
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static void ctdb_ping_flood_next(struct tevent_req *subreq)
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{
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struct tevent_req *req = tevent_req_callback_data(
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subreq, struct tevent_req);
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struct ctdb_ping_flood_state *state = tevent_req_data(
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req, struct ctdb_ping_flood_state);
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int ret;
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ret = ctdb_echo_recv(subreq);
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TALLOC_FREE(subreq);
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if (tevent_req_error(req, ret)) {
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return;
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}
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state->num_running -= 1;
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if (state->done) {
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if (state->num_running == 0) {
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tevent_req_done(req);
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}
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return;
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}
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subreq = ctdb_echo_send(
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state,
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state->ev,
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state->conn,
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generate_random() % 10);
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if (tevent_req_nomem(subreq, req)) {
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return;
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}
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tevent_req_set_callback(subreq, ctdb_ping_flood_next, req);
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state->num_running += 1;
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}
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static void ctdb_ping_flood_done(struct tevent_req *subreq)
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{
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struct tevent_req *req = tevent_req_callback_data(
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subreq, struct tevent_req);
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struct ctdb_ping_flood_state *state = tevent_req_data(
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req, struct ctdb_ping_flood_state);
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bool ok;
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ok = tevent_wakeup_recv(subreq);
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TALLOC_FREE(subreq);
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if (!ok) {
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tevent_req_oom(req);
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return;
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}
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state->done = true;
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}
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static int ctdb_ping_flood_recv(struct tevent_req *req)
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{
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return tevent_req_simple_recv_unix(req);
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}
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bool run_ctdbd_conn1(int dummy)
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{
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struct ctdbd_connection *conn = NULL;
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struct tevent_context *ev = NULL;
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struct tevent_req *req = NULL;
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int ret;
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bool ok;
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bool result = false;
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ev = samba_tevent_context_init(talloc_tos());
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if (ev == NULL) {
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printf("samba_tevent_context_init failed\n");
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goto done;
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}
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ret = ctdbd_init_async_connection(
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ev, lp_ctdbd_socket(), 0, &conn);
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if (ret != 0) {
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printf("ctdbd_init_async_connection failed: %s\n",
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strerror(ret));
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goto done;
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}
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req = ctdb_ping_flood_send(
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ev, ev, conn, torture_nprocs, torture_numops * 1000);
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if (req == NULL) {
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printf("ctdb_ping_flood_send failed\n");
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goto done;
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}
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ok = tevent_req_poll_unix(req, ev, &ret);
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if (!ok) {
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printf("tevent_req_poll_unix failed: %s\n",
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strerror(ret));
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goto done;
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}
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ret = ctdb_ping_flood_recv(req);
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TALLOC_FREE(req);
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if (ret != 0) {
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printf("ctdb_ping_flood failed: %s\n", strerror(ret));
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goto done;
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}
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result = true;
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done:
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TALLOC_FREE(conn);
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return result;
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}
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