diff options
Diffstat (limited to 'tools/regression/netinet/tcpfullwindowrst')
3 files changed, 140 insertions, 0 deletions
diff --git a/tools/regression/netinet/tcpfullwindowrst/Makefile b/tools/regression/netinet/tcpfullwindowrst/Makefile new file mode 100644 index 000000000000..ad401e9df1cd --- /dev/null +++ b/tools/regression/netinet/tcpfullwindowrst/Makefile @@ -0,0 +1,4 @@ +PROG= tcpfullwindowrsttest +MAN= + +.include <bsd.prog.mk> diff --git a/tools/regression/netinet/tcpfullwindowrst/tcpfullwindowrst.t b/tools/regression/netinet/tcpfullwindowrst/tcpfullwindowrst.t new file mode 100644 index 000000000000..457255e2a76b --- /dev/null +++ b/tools/regression/netinet/tcpfullwindowrst/tcpfullwindowrst.t @@ -0,0 +1,6 @@ +#!/bin/sh +# + +make tcpfullwindowrsttest 2>&1 > /dev/null + +./tcpfullwindowrsttest diff --git a/tools/regression/netinet/tcpfullwindowrst/tcpfullwindowrsttest.c b/tools/regression/netinet/tcpfullwindowrst/tcpfullwindowrsttest.c new file mode 100644 index 000000000000..964892f5e380 --- /dev/null +++ b/tools/regression/netinet/tcpfullwindowrst/tcpfullwindowrsttest.c @@ -0,0 +1,130 @@ +/* +Copyright 2004 Michiel Boland. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: + +1. Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright +notice, this list of conditions and the following disclaimer in the +documentation and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS +OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, +OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT +OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR +BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE +OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, +EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +*/ + +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <fcntl.h> +#include <poll.h> +#include <unistd.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +/* + * The following code sets up two connected TCP sockets that send data to each + * other until the window is closed. Then one of the sockets is closed, which + * will generate a RST once the TCP at the other socket does a window probe. + * + * All versions of FreeBSD prior to 11/26/2004 will ignore this RST into a 0 + * window, causing the connection (and application) to hang indefinitely. + * On patched versions of FreeBSD (and other operating systems), the RST + * will be accepted and the program will exit in a few seconds. + */ + +/* + * If the alarm fired then we've hung and the test failed. + */ +void +do_alrm(int s) +{ + printf("not ok 1 - tcpfullwindowrst\n"); + exit(0); +} + +int +main(void) +{ + int o, s, t, u, do_t, do_u; + struct pollfd pfd[2]; + struct sockaddr_in sa; + char buf[4096]; + + printf("1..1\n"); + signal(SIGALRM, do_alrm); + alarm(20); + + s = socket(AF_INET, SOCK_STREAM, 0); + if (s == -1) + return 1; + o = 1; + setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &o, sizeof o); + memset(&sa, 0, sizeof sa); + sa.sin_family = AF_INET; + sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK); + sa.sin_port = htons(3737); + if (bind(s, (struct sockaddr *) &sa, sizeof sa) == -1) + return 1; + if (listen(s, 1) == -1) + return 1; + t = socket(AF_INET, SOCK_STREAM, 0); + if (t == -1) + return 1; + if (connect(t, (struct sockaddr *) &sa, sizeof sa) == -1) + return 1; + u = accept(s, 0, 0); + if (u == -1) + return 1; + close(s); + fcntl(t, F_SETFL, fcntl(t, F_GETFL) | O_NONBLOCK); + fcntl(u, F_SETFL, fcntl(t, F_GETFL) | O_NONBLOCK); + do_t = 1; + do_u = 1; + pfd[0].fd = t; + pfd[0].events = POLLOUT; + pfd[1].fd = u; + pfd[1].events = POLLOUT; + while (do_t || do_u) { + if (poll(pfd, 2, 1000) == 0) { + if (do_t) { + close(t); + pfd[0].fd = -1; + do_t = 0; + } + continue; + } + if (pfd[0].revents & POLLOUT) { + if (write(t, buf, sizeof buf) == -1) { + close(t); + pfd[0].fd = -1; + do_t = 0; + } + } + if (pfd[1].revents & POLLOUT) { + if (write(u, buf, sizeof buf) == -1) { + close(u); + pfd[1].fd = -1; + do_u = 0; + } + } + } + + printf("ok 1 - tcpfullwindowrst\n"); + return 0; +} |