From 0fb57f87a31016916058f7677c88c170c96104fd Mon Sep 17 00:00:00 2001 From: Robert Watson Date: Thu, 25 May 2006 09:50:14 +0000 Subject: [PATCH] Add a basic regression test for sendfile() over TCP, which sends varying lengths of headers and data and makes sure it receives about the right number of bytes. --- tools/regression/sockets/sendfile/Makefile | 11 + tools/regression/sockets/sendfile/sendfile.c | 326 +++++++++++++++++++ 2 files changed, 337 insertions(+) create mode 100644 tools/regression/sockets/sendfile/Makefile create mode 100644 tools/regression/sockets/sendfile/sendfile.c diff --git a/tools/regression/sockets/sendfile/Makefile b/tools/regression/sockets/sendfile/Makefile new file mode 100644 index 00000000000..afca2cac101 --- /dev/null +++ b/tools/regression/sockets/sendfile/Makefile @@ -0,0 +1,11 @@ +# +# $FreeBSD$ +# + +PROG= sendfile +NO_MAN= + +sendfile: sendfile.c + gcc -Wall -o sendfile sendfile.c + +.include diff --git a/tools/regression/sockets/sendfile/sendfile.c b/tools/regression/sockets/sendfile/sendfile.c new file mode 100644 index 00000000000..cc7b48bfaf8 --- /dev/null +++ b/tools/regression/sockets/sendfile/sendfile.c @@ -0,0 +1,326 @@ +/*- + * Copyright (c) 2006 Robert N. M. Watson + * 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 AND CONTRIBUTORS ``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. + * + * $FreeBSD$ + */ + +#include +#include + +#include + +#include +#include +#include +#include +#include +#include +#include + +/* + * Simple regression test for sendfile. Creates a file sized at three pages + * and then proceeds to send it over a series of sockets, exercising a number + * of cases and performing limited validation. + */ + +#define TEST_PORT 5678 +#define TEST_MAGIC 0x4440f7bb +#define TEST_PAGES 3 +#define TEST_SECONDS 30 + +struct test_header { + u_int32_t th_magic; + u_int32_t th_header_length; + u_int32_t th_offset; + u_int32_t th_length; +}; + +pid_t child_pid, parent_pid; +int listen_socket; +int file_fd; + +static int +test_th(struct test_header *th, u_int32_t *header_length, u_int32_t *offset, + u_int32_t *length) +{ + + if (th->th_magic != htonl(TEST_MAGIC)) + return (0); + *header_length = ntohl(th->th_header_length); + *offset = ntohl(th->th_offset); + *length = ntohl(th->th_length); + return (1); +} + +static void +signal_alarm(int signum) +{ + +} + +static void +setup_alarm(int seconds) +{ + + signal(SIGALRM, signal_alarm); + alarm(seconds); +} + +static void +cancel_alarm(void) +{ + + alarm(0); + signal(SIGALRM, SIG_DFL); +} + +static void +receive_test(int accept_socket) +{ + u_int32_t header_length, offset, length, counter; + struct test_header th; + ssize_t len; + char ch; + + len = read(accept_socket, &th, sizeof(th)); + if (len < 0) + err(-1, "read"); + if (len < sizeof(th)) + errx(-1, "read: %d", len); + + if (test_th(&th, &header_length, &offset, &length) == 0) + errx(-1, "test_th: bad"); + + counter = 0; + while (1) { + len = read(accept_socket, &ch, sizeof(ch)); + if (len < 0) + err(-1, "read"); + if (len == 0) + break; + counter++; + /* XXXRW: Validate byte here. */ + } + if (counter != header_length + length) + errx(-1, "receive_test: expected (%d, %d) received %d", + header_length, length, counter); +} + +static void +run_child(void) +{ + int accept_socket; + + while (1) { + accept_socket = accept(listen_socket, NULL, NULL); + setup_alarm(TEST_SECONDS); + receive_test(accept_socket); + cancel_alarm(); + close(accept_socket); + } +} + +static int +new_test_socket(void) +{ + struct sockaddr_in sin; + int connect_socket; + + connect_socket = socket(PF_INET, SOCK_STREAM, 0); + if (connect_socket < 0) + err(-1, "socket"); + + bzero(&sin, sizeof(sin)); + sin.sin_len = sizeof(sin); + sin.sin_family = AF_INET; + sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); + sin.sin_port = htons(TEST_PORT); + + if (connect(connect_socket, (struct sockaddr *)&sin, sizeof(sin)) < 0) + err(-1, "connect"); + + return (connect_socket); +} + +static void +init_th(struct test_header *th, u_int32_t header_length, u_int32_t offset, + u_int32_t length) +{ + + bzero(th, sizeof(*th)); + th->th_magic = htonl(TEST_MAGIC); + th->th_header_length = htonl(header_length); + th->th_offset = htonl(offset); + th->th_length = htonl(length); +} + +static void +send_test(int connect_socket, u_int32_t header_length, u_int32_t offset, + u_int32_t length) +{ + struct test_header th; + struct sf_hdtr hdtr, *hdtrp; + struct iovec headers; + char *header; + ssize_t len; + off_t off; + + len = lseek(file_fd, 0, SEEK_SET); + if (len < 0) + err(-1, "lseek"); + if (len != 0) + errx(-1, "lseek: %d", len); + + init_th(&th, header_length, offset, length); + + len = write(connect_socket, &th, sizeof(th)); + if (len < 0) + err(-1, "send"); + if (len != sizeof(th)) + err(-1, "send: %d", len); + + if (header_length != 0) { + header = malloc(header_length); + if (header == NULL) + err(-1, "malloc"); + hdtrp = &hdtr; + bzero(&headers, sizeof(headers)); + headers.iov_base = header; + headers.iov_len = header_length; + bzero(&hdtr, sizeof(hdtr)); + hdtr.headers = &headers; + hdtr.hdr_cnt = 1; + hdtr.trailers = NULL; + hdtr.trl_cnt = 0; + } else { + hdtrp = NULL; + header = NULL; + } + + if (sendfile(file_fd, connect_socket, offset, length, hdtrp, &off, + 0) < 0) + err(-1, "sendfile"); + + if (off != length) + errx(-1, "sendfile: off %llu", off); + + if (header != NULL) + free(header); +} + +static void +run_parent(void) +{ + int connect_socket; + + connect_socket = new_test_socket(); + send_test(connect_socket, 0, 0, 1); + close(connect_socket); + + sleep(1); + + connect_socket = new_test_socket(); + send_test(connect_socket, 0, 0, getpagesize()); + close(connect_socket); + + sleep(1); + + connect_socket = new_test_socket(); + send_test(connect_socket, 0, 1, 1); + close(connect_socket); + + sleep(1); + + connect_socket = new_test_socket(); + send_test(connect_socket, 0, 1, getpagesize()); + close(connect_socket); + + sleep(1); + + connect_socket = new_test_socket(); + send_test(connect_socket, 0, getpagesize(), getpagesize()); + close(connect_socket); + + sleep(1); + + (void)kill(child_pid, SIGKILL); +} + +int +main(int argc, char *argv[]) +{ + char path[PATH_MAX], *page_buffer; + struct sockaddr_in sin; + int pagesize; + ssize_t len; + + pagesize = getpagesize(); + page_buffer = malloc(TEST_PAGES * pagesize); + if (page_buffer == NULL) + err(-1, "malloc"); + bzero(page_buffer, TEST_PAGES * pagesize); + + listen_socket = socket(PF_INET, SOCK_STREAM, 0); + if (listen_socket < 0) + err(-1, "socket"); + + bzero(&sin, sizeof(sin)); + sin.sin_len = sizeof(sin); + sin.sin_family = AF_INET; + sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); + sin.sin_port = htons(TEST_PORT); + + snprintf(path, PATH_MAX, "/tmp/sendfile.XXXXXXXXXXXX"); + file_fd = mkstemp(path); + (void)unlink(path); + + len = write(file_fd, page_buffer, TEST_PAGES * pagesize); + if (len < 0) + err(-1, "write"); + + len = lseek(file_fd, 0, SEEK_SET); + if (len < 0) + err(-1, "lseek"); + if (len != 0) + errx(-1, "lseek: %d", len); + + if (bind(listen_socket, (struct sockaddr *)&sin, sizeof(sin)) < 0) + err(-1, "bind"); + + if (listen(listen_socket, -1) < 0) + err(-1, "listen"); + + parent_pid = getpid(); + child_pid = fork(); + if (child_pid < 0) + err(-1, "fork"); + if (child_pid == 0) { + child_pid = getpid(); + run_child(); + } else + run_parent(); + + return (0); +} -- 2.45.2