170 lines
3.6 KiB
Bash
Executable File
170 lines
3.6 KiB
Bash
Executable File
#!/bin/sh
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# Based on https://gist.github.com/zonque/7d03568eab14a2bb57cb by
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# Daniel Mack github@zonque.org
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# Modified version of sctp.sh by Michael Tuexen <tuexen@freebsd.org>:
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# * Use loopback as the address of the server on both side initialized using
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# htonl(INADDR_LOOPBACK).
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# * Negotiate only 1 stream in both directions since only one stream is used.
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# * Don't use initmsg.sinit_max_instreams as an argument in listen(), which
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# does not make sense.
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# Use an arbitrary positive integer, 5 in this case.
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# * Initialize flags before calling sctp_recvmsg().
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# "panic: Don't own TCB lock" seen:
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# https://people.freebsd.org/~pho/stress/log/sctp2.txt
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# "panic: soclose: SS_NOFDREF on enter" seen:
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# https://people.freebsd.org/~pho/stress/log/sctp2-2.txt
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kldstat -v | grep -q sctp || kldload sctp.ko
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cat > /tmp/sctp2.c <<EOF
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <libgen.h>
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#include <netinet/in.h>
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#include <netinet/sctp.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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static int my_port_num;
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static void
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die(const char *s)
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{
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perror(s);
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exit(1);
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}
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static void
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server(void)
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{
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struct sctp_sndrcvinfo sndrcvinfo;
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struct sockaddr_in servaddr = {
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.sin_family = AF_INET,
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.sin_addr.s_addr = htonl(INADDR_LOOPBACK),
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.sin_port = htons(my_port_num),
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};
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struct sctp_initmsg initmsg = {
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.sinit_num_ostreams = 1,
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.sinit_max_instreams = 1,
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.sinit_max_attempts = 4,
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};
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int listen_fd, conn_fd, flags, ret, in;
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listen_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP);
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if (listen_fd < 0)
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die("socket");
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ret = bind(listen_fd, (struct sockaddr *) &servaddr, sizeof(servaddr));
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if (ret < 0)
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die("bind");
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ret = setsockopt(listen_fd, IPPROTO_SCTP, SCTP_INITMSG, &initmsg,
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sizeof(initmsg));
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if (ret < 0)
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die("setsockopt");
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ret = listen(listen_fd, 5);
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if (ret < 0)
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die("listen");
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for (;;) {
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char buffer[1024];
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printf("Waiting for connection\n");
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fflush(stdout);
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conn_fd = accept(listen_fd, (struct sockaddr *) NULL, NULL);
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if(conn_fd < 0)
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die("accept()");
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printf("New client connected\n");
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fflush(stdout);
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flags = 0;
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in = sctp_recvmsg(conn_fd, buffer, sizeof(buffer), NULL, 0,
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&sndrcvinfo, &flags);
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if (in > 0) {
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printf("Received data: %s\n", buffer);
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fflush(stdout);
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}
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close(conn_fd);
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}
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}
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static void
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client(void)
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{
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struct sockaddr_in servaddr = {
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.sin_family = AF_INET,
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.sin_port = htons(my_port_num),
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.sin_addr.s_addr = htonl(INADDR_LOOPBACK),
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};
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int conn_fd, ret;
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const char *msg = "Hello, Server!";
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conn_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP);
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if (conn_fd < 0)
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die("socket()");
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ret = connect(conn_fd, (struct sockaddr *) &servaddr, sizeof(servaddr));
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if (ret < 0)
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die("connect()");
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ret = sctp_sendmsg(conn_fd, (void *) msg, strlen(msg) + 1, NULL, 0, 0, 0, 0, 0, 0 );
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if (ret < 0)
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die("sctp_sendmsg");
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close(conn_fd);
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}
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int
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main(int argc __unused, char *argv[])
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{
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my_port_num = atoi(argv[1]);
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if (strstr(basename(argv[0]), "server"))
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server();
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else
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client();
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return (0);
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}
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EOF
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cc -o /tmp/server -Wall -Wextra -O2 /tmp/sctp2.c || exit
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ln -sf /tmp/server /tmp/client
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parallel=100
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for i in `jot $parallel 62324`; do
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/tmp/server $i > /dev/null &
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done
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(cd ../testcases/swap; ./swap -t 1m -i 20 -l 100) &
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sleep 2
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start=`date +%s`
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while [ $((`date +%s` - start)) -lt 60 ]; do
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pids=
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for i in `jot 50`; do
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for j in `jot $parallel 62324`; do
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/tmp/client $j &
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pids="$pids $!"
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done
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done
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for i in $pids; do
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wait $i
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done
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done
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pkill server
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wait
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while pkill swap; do :; done
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wait
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rm -f /tmp/sctp2.c /tmp/server /tmp/client
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exit 0
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