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virglrenderer/vtest/vtest_server.c

660 lines
16 KiB

/**************************************************************************
*
* 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 <getopt.h>
#include <string.h>
#include "util.h"
#include "util/u_double_list.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "vtest.h"
#include "vtest_protocol.h"
#include "virglrenderer.h"
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
enum vtest_client_error {
VTEST_CLIENT_ERROR_INPUT_READ = 2, /* for backward compatibility */
VTEST_CLIENT_ERROR_CONTEXT_MISSING,
VTEST_CLIENT_ERROR_CONTEXT_FAILED,
VTEST_CLIENT_ERROR_COMMAND_ID,
VTEST_CLIENT_ERROR_COMMAND_UNEXPECTED,
VTEST_CLIENT_ERROR_COMMAND_DISPATCH,
};
struct vtest_client
{
int in_fd;
int out_fd;
struct vtest_input input;
struct list_head head;
bool in_fd_ready;
struct vtest_context *context;
};
struct vtest_server
{
const char *socket_name;
int socket;
const char *read_file;
const char *render_device;
bool main_server;
bool do_fork;
bool loop;
bool multi_clients;
bool use_glx;
bool use_egl_surfaceless;
bool use_gles;
int ctx_flags;
struct list_head new_clients;
struct list_head active_clients;
struct list_head inactive_clients;
};
struct vtest_server server = {
.socket_name = VTEST_DEFAULT_SOCKET_NAME,
.socket = -1,
.read_file = NULL,
.render_device = 0,
.main_server = true,
.do_fork = true,
.loop = true,
.multi_clients = false,
.ctx_flags = 0,
};
static void vtest_server_getenv(void);
static void vtest_server_parse_args(int argc, char **argv);
static void vtest_server_set_signal_child(void);
static void vtest_server_set_signal_segv(void);
static void vtest_server_open_read_file(void);
static void vtest_server_open_socket(void);
static void vtest_server_run(void);
static void vtest_server_close_socket(void);
static int vtest_client_dispatch_commands(struct vtest_client *client);
int main(int argc, char **argv)
{
#ifdef __AFL_LOOP
while (__AFL_LOOP(1000)) {
#endif
vtest_server_getenv();
vtest_server_parse_args(argc, argv);
list_inithead(&server.new_clients);
list_inithead(&server.active_clients);
list_inithead(&server.inactive_clients);
if (server.do_fork) {
vtest_server_set_signal_child();
} else {
vtest_server_set_signal_segv();
}
vtest_server_run();
#ifdef __AFL_LOOP
if (!server.main_server) {
exit(0);
}
}
#endif
}
#define OPT_NO_FORK 'f'
#define OPT_NO_LOOP_OR_FORK 'l'
#define OPT_MULTI_CLIENTS 'm'
#define OPT_USE_GLX 'x'
#define OPT_USE_EGL_SURFACELESS 's'
#define OPT_USE_GLES 'e'
#define OPT_RENDERNODE 'r'
static void vtest_server_parse_args(int argc, char **argv)
{
int ret;
static struct option long_options[] = {
{"no-fork", no_argument, NULL, OPT_NO_FORK},
{"no-loop-or-fork", no_argument, NULL, OPT_NO_LOOP_OR_FORK},
{"multi-clients", no_argument, NULL, OPT_MULTI_CLIENTS},
{"use-glx", no_argument, NULL, OPT_USE_GLX},
{"use-egl-surfaceless", no_argument, NULL, OPT_USE_EGL_SURFACELESS},
{"use-gles", no_argument, NULL, OPT_USE_GLES},
{"rendernode", required_argument, NULL, OPT_RENDERNODE},
{0, 0, 0, 0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
do {
ret = getopt_long(argc, argv, "", long_options, &option_index);
switch (ret) {
case -1:
break;
case OPT_NO_FORK:
server.do_fork = false;
break;
case OPT_NO_LOOP_OR_FORK:
server.do_fork = false;
server.loop = false;
break;
case OPT_MULTI_CLIENTS:
printf("EXPERIMENTAL: clients must know and trust each other\n");
server.multi_clients = true;
break;
case OPT_USE_GLX:
server.use_glx = true;
break;
case OPT_USE_EGL_SURFACELESS:
server.use_egl_surfaceless = true;
break;
case OPT_USE_GLES:
server.use_gles = true;
break;
case OPT_RENDERNODE:
server.render_device = optarg;
break;
default:
printf("Usage: %s [--no-fork] [--no-loop-or-fork] [--multi-clients] "
"[--use-glx] [--use-egl-surfaceless] [--use-gles] "
"[--rendernode <dev>]"
" [file]\n", argv[0]);
exit(EXIT_FAILURE);
break;
}
} while (ret >= 0);
if (optind < argc) {
server.read_file = argv[optind];
server.loop = false;
server.do_fork = false;
server.multi_clients = false;
}
server.ctx_flags = VIRGL_RENDERER_USE_EGL;
if (server.use_glx) {
if (server.use_egl_surfaceless || server.use_gles) {
fprintf(stderr, "Cannot use surfaceless or GLES with GLX.\n");
exit(EXIT_FAILURE);
}
server.ctx_flags = VIRGL_RENDERER_USE_GLX;
} else {
if (server.use_egl_surfaceless)
server.ctx_flags |= VIRGL_RENDERER_USE_SURFACELESS;
if (server.use_gles)
server.ctx_flags |= VIRGL_RENDERER_USE_GLES;
}
}
static void vtest_server_getenv(void)
{
server.use_glx = getenv("VTEST_USE_GLX") != NULL;
server.use_egl_surfaceless = getenv("VTEST_USE_EGL_SURFACELESS") != NULL;
server.use_gles = getenv("VTEST_USE_GLES") != NULL;
server.render_device = getenv("VTEST_RENDERNODE");
}
static void handler(int sig, siginfo_t *si, void *unused)
{
(void)sig; (void)si, (void)unused;
printf("SIGSEGV!\n");
exit(EXIT_FAILURE);
}
static void vtest_server_set_signal_child(void)
{
struct sigaction sa;
int ret;
memset(&sa, 0, sizeof(sa));
sigemptyset(&sa.sa_mask);
sa.sa_handler = SIG_IGN;
sa.sa_flags = 0;
ret = sigaction(SIGCHLD, &sa, NULL);
if (ret == -1) {
perror("Failed to set SIGCHLD");
exit(1);
}
}
static void vtest_server_set_signal_segv(void)
{
struct sigaction sa;
int ret;
memset(&sa, 0, sizeof(sa));
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
sa.sa_sigaction = handler;
ret = sigaction(SIGSEGV, &sa, NULL);
if (ret == -1) {
perror("Failed to set SIGSEGV");
exit(1);
}
}
static int vtest_server_add_client(int in_fd, int out_fd)
{
struct vtest_client *client;
client = calloc(1, sizeof(*client));
if (!client)
return -1;
client->in_fd = in_fd;
client->out_fd = out_fd;
client->input.data.fd = in_fd;
client->input.read = vtest_block_read;
list_addtail(&client->head, &server.new_clients);
return 0;
}
static void vtest_server_open_read_file(void)
{
int in_fd;
int out_fd;
in_fd = open(server.read_file, O_RDONLY);
if (in_fd == -1) {
perror(NULL);
exit(1);
}
out_fd = open("/dev/null", O_WRONLY);
if (out_fd == -1) {
perror(NULL);
exit(1);
}
if (vtest_server_add_client(in_fd, out_fd)) {
perror(NULL);
exit(1);
}
}
static void vtest_server_open_socket(void)
{
struct sockaddr_un un;
server.socket = socket(PF_UNIX, SOCK_STREAM, 0);
if (server.socket < 0) {
goto err;
}
memset(&un, 0, sizeof(un));
un.sun_family = AF_UNIX;
snprintf(un.sun_path, sizeof(un.sun_path), "%s", server.socket_name);
unlink(un.sun_path);
if (bind(server.socket, (struct sockaddr *)&un, sizeof(un)) < 0) {
goto err;
}
if (listen(server.socket, 1) < 0){
goto err;
}
return;
err:
perror("Failed to setup socket.");
exit(1);
}
static void vtest_server_wait_clients(void)
{
struct vtest_client *client;
fd_set read_fds;
int max_fd = -1;
int ret;
FD_ZERO(&read_fds);
LIST_FOR_EACH_ENTRY(client, &server.active_clients, head) {
FD_SET(client->in_fd, &read_fds);
max_fd = MAX2(client->in_fd, max_fd);
}
/* accept new clients when there is none or when multi_clients is set */
if (server.socket >= 0 && (max_fd < 0 || server.multi_clients)) {
FD_SET(server.socket, &read_fds);
max_fd = MAX2(server.socket, max_fd);
}
if (max_fd < 0) {
if (!LIST_IS_EMPTY(&server.new_clients)) {
return;
}
fprintf(stderr, "server has no fd to wait\n");
exit(1);
}
ret = select(max_fd + 1, &read_fds, NULL, NULL, NULL);
if (ret < 0) {
perror("Failed to select on socket!");
exit(1);
}
LIST_FOR_EACH_ENTRY(client, &server.active_clients, head) {
if (FD_ISSET(client->in_fd, &read_fds)) {
client->in_fd_ready = true;
}
}
if (server.socket >= 0 && FD_ISSET(server.socket, &read_fds)) {
int new_fd = accept(server.socket, NULL, NULL);
if (new_fd < 0) {
perror("Failed to accept socket.");
exit(1);
}
if (vtest_server_add_client(new_fd, new_fd)) {
perror("Failed to add client.");
exit(1);
}
}
}
static const char *vtest_client_error_string(enum vtest_client_error err)
{
switch (err) {
#define CASE(e) case e: return #e;
CASE(VTEST_CLIENT_ERROR_INPUT_READ)
CASE(VTEST_CLIENT_ERROR_CONTEXT_MISSING)
CASE(VTEST_CLIENT_ERROR_CONTEXT_FAILED)
CASE(VTEST_CLIENT_ERROR_COMMAND_ID)
CASE(VTEST_CLIENT_ERROR_COMMAND_UNEXPECTED)
CASE(VTEST_CLIENT_ERROR_COMMAND_DISPATCH)
#undef CASE
default: return "VTEST_CLIENT_ERROR_UNKNOWN";
}
}
static void vtest_server_dispatch_clients(void)
{
struct vtest_client *client, *tmp;
LIST_FOR_EACH_ENTRY_SAFE(client, tmp, &server.active_clients, head) {
int err;
if (!client->in_fd_ready)
continue;
client->in_fd_ready = false;
err = vtest_client_dispatch_commands(client);
if (err) {
fprintf(stderr, "client failed: %s\n",
vtest_client_error_string(err));
list_del(&client->head);
list_addtail(&client->head, &server.inactive_clients);
}
}
}
static pid_t vtest_server_fork(void)
{
pid_t pid = fork();
if (pid == 0) {
/* child */
vtest_server_set_signal_segv();
vtest_server_close_socket();
server.main_server = false;
server.do_fork = false;
server.loop = false;
server.multi_clients = false;
}
return pid;
}
static void vtest_server_fork_clients(void)
{
struct vtest_client *client, *tmp;
LIST_FOR_EACH_ENTRY_SAFE(client, tmp, &server.new_clients, head) {
if (vtest_server_fork()) {
/* parent: move new clients to the inactive list */
list_del(&client->head);
list_addtail(&client->head, &server.inactive_clients);
} else {
/* child: move the first new client to the active list */
list_del(&client->head);
list_addtail(&client->head, &server.active_clients);
/* move the rest new clients to the inactive list */
LIST_FOR_EACH_ENTRY_SAFE(client, tmp, &server.new_clients, head) {
list_del(&client->head);
list_addtail(&client->head, &server.inactive_clients);
}
}
}
}
static void vtest_server_activate_clients(void)
{
struct vtest_client *client, *tmp;
/* move new clients to the active list */
LIST_FOR_EACH_ENTRY_SAFE(client, tmp, &server.new_clients, head) {
list_addtail(&client->head, &server.active_clients);
}
list_inithead(&server.new_clients);
}
static void vtest_server_inactivate_clients(void)
{
struct vtest_client *client, *tmp;
/* move active clients to the inactive list */
LIST_FOR_EACH_ENTRY_SAFE(client, tmp, &server.active_clients, head) {
list_addtail(&client->head, &server.inactive_clients);
}
list_inithead(&server.active_clients);
}
static void vtest_server_tidy_clients(void)
{
struct vtest_client *client, *tmp;
LIST_FOR_EACH_ENTRY_SAFE(client, tmp, &server.inactive_clients, head) {
if (client->context) {
vtest_destroy_context(client->context);
}
if (client->in_fd >= 0) {
close(client->in_fd);
}
if (client->out_fd >= 0 && client->out_fd != client->in_fd) {
close(client->out_fd);
}
free(client);
}
list_inithead(&server.inactive_clients);
}
static void vtest_server_run(void)
{
bool run = true;
if (server.read_file) {
vtest_server_open_read_file();
} else {
vtest_server_open_socket();
}
while (run) {
const bool was_empty = LIST_IS_EMPTY(&server.active_clients);
bool is_empty;
vtest_server_wait_clients();
vtest_server_dispatch_clients();
if (server.do_fork) {
vtest_server_fork_clients();
} else {
vtest_server_activate_clients();
}
/* init renderer after the first active client is added */
is_empty = LIST_IS_EMPTY(&server.active_clients);
if (was_empty && !is_empty) {
int ret = vtest_init_renderer(server.ctx_flags, server.render_device);
if (ret) {
vtest_server_inactivate_clients();
run = false;
}
}
vtest_server_tidy_clients();
/* clean up renderer after the last active client is removed */
if (!was_empty && is_empty) {
vtest_cleanup_renderer();
if (!server.loop) {
run = false;
}
}
}
vtest_server_close_socket();
}
typedef int (*vtest_cmd_fptr_t)(uint32_t);
static const vtest_cmd_fptr_t vtest_commands[] = {
NULL /* CMD ids starts at 1 */,
vtest_send_caps,
vtest_create_resource,
vtest_resource_unref,
vtest_transfer_get,
vtest_transfer_put,
vtest_submit_cmd,
vtest_resource_busy_wait,
NULL, /* VCMD_CREATE_RENDERER is a specific case */
vtest_send_caps2,
vtest_ping_protocol_version,
vtest_protocol_version,
vtest_create_resource2,
vtest_transfer_get2,
vtest_transfer_put2,
};
static int vtest_client_dispatch_commands(struct vtest_client *client)
{
int ret;
uint32_t header[VTEST_HDR_SIZE];
ret = client->input.read(&client->input, &header, sizeof(header));
if (ret < 0 || (size_t)ret < sizeof(header)) {
return VTEST_CLIENT_ERROR_INPUT_READ;
}
if (!client->context) {
/* The first command MUST be VCMD_CREATE_RENDERER */
if (header[1] != VCMD_CREATE_RENDERER) {
return VTEST_CLIENT_ERROR_CONTEXT_MISSING;
}
ret = vtest_create_context(&client->input, client->out_fd,
header[0], &client->context);
if (ret < 0) {
return VTEST_CLIENT_ERROR_CONTEXT_FAILED;
}
printf("%s: client context created.\n", __func__);
vtest_poll();
return 0;
}
vtest_poll();
if (header[1] <= 0 || header[1] >= ARRAY_SIZE(vtest_commands)) {
return VTEST_CLIENT_ERROR_COMMAND_ID;
}
if (vtest_commands[header[1]] == NULL) {
return VTEST_CLIENT_ERROR_COMMAND_UNEXPECTED;
}
vtest_set_current_context(client->context);
ret = vtest_commands[header[1]](header[0]);
if (ret < 0) {
return VTEST_CLIENT_ERROR_COMMAND_DISPATCH;
}
/* GL draws are fenced, while possible fence creations are too */
if (header[1] == VCMD_SUBMIT_CMD || header[1] == VCMD_RESOURCE_CREATE ||
header[1] == VCMD_RESOURCE_CREATE2)
vtest_renderer_create_fence();
return 0;
}
static void vtest_server_close_socket(void)
{
if (server.socket != -1) {
close(server.socket);
server.socket = -1;
}
}