source: trunk/server/source4/torture/nbt/winsbench.c

/* 
   Unix SMB/CIFS implementation.

   WINS benchmark test

   Copyright (C) Andrew Tridgell 2005
   
   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 "includes.h"
#include "lib/events/events.h"
#include "lib/socket/socket.h"
#include "libcli/resolve/resolve.h"
#include "system/network.h"
#include "lib/socket/netif.h"
#include "torture/torture.h"
#include "torture/nbt/proto.h"
#include "param/param.h"

struct wins_state {
        int num_names;
        bool *registered;
        int pass_count;
        int fail_count;
        const char *wins_server;
        uint16_t wins_port;
        const char *my_ip;
        uint32_t ttl;
};

struct idx_state {
        int idx;
        struct wins_state *state;
};

static struct nbt_name generate_name(TALLOC_CTX *tctx, int idx)
{
        struct nbt_name name;
        name.name       = talloc_asprintf(tctx, "WINSBench%6u", idx);
        name.type       = 0x4;
        name.scope      = NULL;
        return name;
}

static void register_handler(struct nbt_name_request *req)
{
        struct idx_state *istate = talloc_get_type(req->async.private_data, struct idx_state);
        struct wins_state *state = istate->state;
        struct nbt_name_register io;
        NTSTATUS status;

        status = nbt_name_register_recv(req, istate, &io);
        if (!NT_STATUS_IS_OK(status) || io.out.rcode != NBT_RCODE_OK) {
                state->fail_count++;
        } else {
                state->pass_count++;
                state->registered[istate->idx] = true;
        }
        talloc_free(istate);    
}

/*
  generate a registration
*/
static void generate_register(struct nbt_name_socket *nbtsock, struct wins_state *state, int idx)
{
        struct nbt_name_register io;
        TALLOC_CTX *tmp_ctx = talloc_new(state);
        struct nbt_name_request *req;
        struct idx_state *istate;

        istate = talloc(nbtsock, struct idx_state);
        istate->idx = idx;
        istate->state = state;

        io.in.name            = generate_name(tmp_ctx, idx);
        io.in.dest_addr       = state->wins_server;
        io.in.dest_port       = state->wins_port;
        io.in.address         = state->my_ip;
        io.in.nb_flags        = NBT_NODE_H;
        io.in.register_demand = false;
        io.in.broadcast       = false;
        io.in.multi_homed     = false;
        io.in.ttl             = state->ttl;
        io.in.timeout         = 2;
        io.in.retries         = 1;

        req = nbt_name_register_send(nbtsock, &io);

        req->async.fn = register_handler;
        req->async.private_data = istate;

        talloc_free(tmp_ctx);
}


static void release_handler(struct nbt_name_request *req)
{
        struct idx_state *istate = talloc_get_type(req->async.private_data, struct idx_state);
        struct wins_state *state = istate->state;
        struct nbt_name_release io;
        NTSTATUS status;

        status = nbt_name_release_recv(req, istate, &io);
        if (state->registered[istate->idx] && 
            (!NT_STATUS_IS_OK(status) || io.out.rcode != NBT_RCODE_OK)) {
                state->fail_count++;
        } else {
                state->pass_count++;
                state->registered[istate->idx] = false;
        }
        talloc_free(istate);    
}

/*
  generate a name release
*/
static void generate_release(struct nbt_name_socket *nbtsock, struct wins_state *state, int idx)
{
        struct nbt_name_release io;
        TALLOC_CTX *tmp_ctx = talloc_new(state);
        struct nbt_name_request *req;
        struct idx_state *istate;

        istate = talloc(nbtsock, struct idx_state);
        istate->idx = idx;
        istate->state = state;

        io.in.name            = generate_name(tmp_ctx, idx);
        io.in.dest_port       = state->wins_port;
        io.in.dest_addr       = state->wins_server;
        io.in.address         = state->my_ip;
        io.in.nb_flags        = NBT_NODE_H;
        io.in.broadcast       = false;
        io.in.timeout         = 2;
        io.in.retries         = 1;

        req = nbt_name_release_send(nbtsock, &io);

        req->async.fn = release_handler;
        req->async.private_data = istate;

        talloc_free(tmp_ctx);
}


static void query_handler(struct nbt_name_request *req)
{
        struct idx_state *istate = talloc_get_type(req->async.private_data, struct idx_state);
        struct wins_state *state = istate->state;
        struct nbt_name_query io;
        NTSTATUS status;

        status = nbt_name_query_recv(req, istate, &io);
        if (!NT_STATUS_IS_OK(status) && state->registered[istate->idx]) {
                state->fail_count++;
        } else {
                state->pass_count++;
        }
        talloc_free(istate);    
}

/*
  generate a name query
*/
static void generate_query(struct nbt_name_socket *nbtsock, struct wins_state *state, int idx)
{
        struct nbt_name_query io;
        TALLOC_CTX *tmp_ctx = talloc_new(state);
        struct nbt_name_request *req;
        struct idx_state *istate;

        istate = talloc(nbtsock, struct idx_state);
        istate->idx = idx;
        istate->state = state;

        io.in.name            = generate_name(tmp_ctx, idx);
        io.in.dest_addr       = state->wins_server;
        io.in.dest_port       = state->wins_port;
        io.in.broadcast       = false;
        io.in.wins_lookup     = true;
        io.in.timeout         = 2;
        io.in.retries         = 1;

        req = nbt_name_query_send(nbtsock, &io);

        req->async.fn = query_handler;
        req->async.private_data = istate;

        talloc_free(tmp_ctx);
}

/*
  generate one WINS request
*/
static void generate_request(struct nbt_name_socket *nbtsock, struct wins_state *state, int idx)
{
        if (random() % 5 == 0) {
                generate_register(nbtsock, state, idx);
                return;
        }

        if (random() % 20 == 0) {
                generate_release(nbtsock, state, idx);
                return;
        }

        generate_query(nbtsock, state, idx);
}

/*
  benchmark simple name queries
*/
static bool bench_wins(struct torture_context *tctx)
{
        struct nbt_name_socket *nbtsock = nbt_name_socket_init(tctx, tctx->ev);
        int num_sent=0;
        struct timeval tv = timeval_current();
        bool ret = true;
        int timelimit = torture_setting_int(tctx, "timelimit", 5);
        struct wins_state *state;
        extern int torture_entries;
        struct socket_address *my_ip;
        struct nbt_name name;
        const char *address;
        struct interface *ifaces;

        if (!torture_nbt_get_name(tctx, &name, &address))
                return false;

        state = talloc_zero(nbtsock, struct wins_state);

        state->num_names = torture_entries;
        state->registered = talloc_zero_array(state, bool, state->num_names);
        state->wins_server = address;
        state->wins_port = lpcfg_nbt_port(tctx->lp_ctx);
        load_interfaces(tctx, lpcfg_interfaces(tctx->lp_ctx), &ifaces);
        state->my_ip = talloc_strdup(tctx, iface_best_ip(ifaces, address));
        state->ttl = timelimit;

        my_ip = socket_address_from_strings(nbtsock, nbtsock->sock->backend_name, 
                                            state->my_ip, 0);

        socket_listen(nbtsock->sock, my_ip, 0, 0);

        torture_comment(tctx, "Running for %d seconds\n", timelimit);
        while (timeval_elapsed(&tv) < timelimit) {
                while (num_sent - (state->pass_count+state->fail_count) < 10) {
                        generate_request(nbtsock, state, num_sent % state->num_names);
                        num_sent++;
                        if (num_sent % 50 == 0) {
                                if (torture_setting_bool(tctx, "progress", true)) {
                                        torture_comment(tctx, "%.1f queries per second (%d failures)  \r", 
                                               state->pass_count / timeval_elapsed(&tv),
                                               state->fail_count);
                                        fflush(stdout);
                                }
                        }
                }

                event_loop_once(nbtsock->event_ctx);
        }

        while (num_sent != (state->pass_count + state->fail_count)) {
                event_loop_once(nbtsock->event_ctx);
        }

        torture_comment(tctx, "%.1f queries per second (%d failures)  \n", 
               state->pass_count / timeval_elapsed(&tv),
               state->fail_count);

        talloc_free(nbtsock);
        return ret;
}


/*
  benchmark how fast a WINS server can respond to a mixture of
  registration/refresh/release and name query requests
*/
struct torture_suite *torture_bench_wins(TALLOC_CTX *mem_ctx)
{
        struct torture_suite *suite = torture_suite_create(mem_ctx, "bench-wins");

        torture_suite_add_simple_test(suite, "wins", bench_wins);

        return suite;
}