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/**************************************************************************
*
* Copyright (C) 2015 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include <stdio.h>
#include <signal.h>
#include <stdbool.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/un.h>
#include <fcntl.h>
#include "util.h"
#include "vtest.h"
#include "vtest_protocol.h"
static int vtest_open_socket(const char *path)
{
struct sockaddr_un un;
int sock;
sock = socket(PF_UNIX, SOCK_STREAM, 0);
if (sock < 0) {
return -1;
}
memset(&un, 0, sizeof(un));
un.sun_family = AF_UNIX;
snprintf(un.sun_path, sizeof(un.sun_path), "%s", path);
unlink(un.sun_path);
if (bind(sock, (struct sockaddr *)&un, sizeof(un)) < 0) {
goto err;
}
if (listen(sock, 1) < 0){
goto err;
}
return sock;
err:
close(sock);
return -1;
}
static int wait_for_socket_accept(int sock)
{
fd_set read_fds;
int new_fd;
int ret;
FD_ZERO(&read_fds);
FD_SET(sock, &read_fds);
ret = select(sock + 1, &read_fds, NULL, NULL, NULL);
if (ret < 0)
return ret;
if (FD_ISSET(sock, &read_fds)) {
new_fd = accept(sock, NULL, NULL);
return new_fd;
}
return -1;
}
static int run_renderer(int in_fd, int out_fd)
{
int ret;
uint32_t header[VTEST_HDR_SIZE];
bool inited = false;
again:
ret = vtest_wait_for_fd_read(in_fd);
if (ret < 0)
goto fail;
ret = vtest_block_read(in_fd, &header, sizeof(header));
if (ret == 8) {
if (!inited) {
if (header[1] != VCMD_CREATE_RENDERER)
goto fail;
ret = vtest_create_renderer(in_fd, out_fd, header[0]);
inited = true;
}
vtest_poll();
switch (header[1]) {
case VCMD_GET_CAPS:
ret = vtest_send_caps();
break;
case VCMD_RESOURCE_CREATE:
ret = vtest_create_resource();
break;
case VCMD_RESOURCE_UNREF:
ret = vtest_resource_unref();
break;
case VCMD_SUBMIT_CMD:
ret = vtest_submit_cmd(header[0]);
break;
case VCMD_TRANSFER_GET:
ret = vtest_transfer_get(header[0]);
break;
case VCMD_TRANSFER_PUT:
ret = vtest_transfer_put(header[0]);
break;
case VCMD_RESOURCE_BUSY_WAIT:
vtest_renderer_create_fence();
ret = vtest_resource_busy_wait();
break;
default:
break;
}
if (ret < 0) {
goto fail;
}
goto again;
}
if (ret <= 0) {
goto fail;
}
fail:
fprintf(stderr, "socket failed - closing renderer\n");
vtest_destroy_renderer();
close(in_fd);
return 0;
}
int main(int argc, char **argv)
{
int ret, sock = -1, in_fd, out_fd;
pid_t pid;
bool do_fork = true, loop = true;
struct sigaction sa;
#ifdef __AFL_LOOP
while (__AFL_LOOP(1000)) {
#endif
if (argc > 1) {
if (!strcmp(argv[1], "--no-fork"))
do_fork = false;
else {
ret = open(argv[1], O_RDONLY);
if (ret == -1) {
perror(0);
exit(1);
}
in_fd = ret;
ret = open("/dev/null", O_WRONLY);
if (ret == -1) {
perror(0);
exit(1);
}
out_fd = ret;
loop = false;
do_fork = false;
goto start;
}
}
if (do_fork) {
sa.sa_handler = SIG_IGN;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
if (sigaction(SIGCHLD, &sa, 0) == -1) {
perror(0);
exit(1);
}
}
sock = vtest_open_socket("/tmp/.virgl_test");
restart:
in_fd = wait_for_socket_accept(sock);
out_fd = in_fd;
start:
if (do_fork) {
/* fork a renderer process */
switch ((pid = fork())) {
case 0:
run_renderer(in_fd, out_fd);
exit(0);
break;
case -1:
default:
close(in_fd);
if (loop)
goto restart;
}
} else {
run_renderer(in_fd, out_fd);
if (loop)
goto restart;
}
if (sock != -1)
close(sock);
if (in_fd != out_fd)
close(out_fd);
#ifdef __AFL_LOOP
}
#endif
}
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