131 lines
4.4 KiB
C
131 lines
4.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <quiche.h>
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#define MAX_DATAGRAM_SIZE 1350
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// void debug_log(const char *line, void *argp) {
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// fprintf(stderr, "%s\n", line);
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// }
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int main(int argc, char *argv[]) {
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// quiche_enable_debug_logging(debug_log, NULL);
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quiche_config *config = quiche_config_new(QUICHE_PROTOCOL_VERSION);
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if (config == NULL) return -1;
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quiche_config_verify_peer(config, false);
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quiche_config_set_application_protos(config, (uint8_t *) "\x0ahq-interop\x05hq-29\x05hq-28\x05hq-27\x08http/0.9", 38);
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quiche_config_set_max_idle_timeout(config, 5000);
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quiche_config_set_max_recv_udp_payload_size(config, MAX_DATAGRAM_SIZE);
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quiche_config_set_max_send_udp_payload_size(config, MAX_DATAGRAM_SIZE);
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quiche_config_set_initial_max_data(config, 10000000);
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quiche_config_set_initial_max_stream_data_bidi_local(config, 1000000);
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quiche_config_set_initial_max_streams_bidi(config, 100);
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int sock = socket(AF_INET, SOCK_DGRAM, 0);
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if (sock < 0) return -1;
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struct sockaddr_in peer_addr;
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memset(&peer_addr, 0, sizeof(peer_addr));
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peer_addr.sin_family = AF_INET;
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peer_addr.sin_port = htons(8888);
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inet_pton(AF_INET, "127.0.0.1", &peer_addr.sin_addr);
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if (connect(sock, (struct sockaddr *)&peer_addr, sizeof(peer_addr)) < 0) {
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perror("connect");
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return -1;
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}
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struct sockaddr_in local_addr;
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socklen_t local_addr_len = sizeof(local_addr);
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if (getsockname(sock, (struct sockaddr *)&local_addr, &local_addr_len) < 0) {
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perror("getsockname");
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return -1;
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}
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int flags = fcntl(sock, F_GETFL, 0);
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fcntl(sock, F_SETFL, flags | O_NONBLOCK);
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uint8_t scid[QUICHE_MAX_CONN_ID_LEN];
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int rng = open("/dev/urandom", O_RDONLY);
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if (rng >= 0) {
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read(rng, scid, sizeof(scid));
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close(rng);
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}
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quiche_conn *conn = quiche_connect("127.0.0.1", (const uint8_t *)scid, sizeof(scid), (struct sockaddr *)&local_addr, local_addr_len, (struct sockaddr *)&peer_addr, sizeof(peer_addr), config);
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if (conn == NULL) {
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fprintf(stderr, "quiche_connect failed\n");
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return -1;
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}
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printf("Connecting to QUIC server...\n");
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uint8_t buf[65535];
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uint8_t out[MAX_DATAGRAM_SIZE];
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bool req_sent = false;
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while (1) {
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ssize_t read_len = recv(sock, buf, sizeof(buf), 0);
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if (read_len > 0) {
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quiche_conn_recv(conn, buf, read_len, &(quiche_recv_info){
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.to = (struct sockaddr *)&local_addr,
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.to_len = local_addr_len,
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.from = (struct sockaddr *)&peer_addr,
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.from_len = sizeof(peer_addr),
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});
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}
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if (quiche_conn_is_closed(conn)) {
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printf("Connection closed.\n");
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break;
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}
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if (quiche_conn_is_established(conn)) {
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if (!req_sent) {
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const char *msg = "Hello from QUIC Client!";
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uint64_t err_code = 0;
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quiche_conn_stream_send(conn, 4, (uint8_t*)msg, strlen(msg), true, &err_code);
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printf("Sent: %s\n", msg);
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req_sent = true;
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}
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uint64_t s = 0;
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quiche_stream_iter *readable = quiche_conn_readable(conn);
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while (quiche_stream_iter_next(readable, &s)) {
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uint8_t recv_buf[1024];
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bool fin = false;
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uint64_t err_code = 0;
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ssize_t len = quiche_conn_stream_recv(conn, s, recv_buf, sizeof(recv_buf), &fin, &err_code);
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if (len > 0) {
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printf("Received: %.*s\n", (int)len, recv_buf);
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quiche_conn_close(conn, true, 0, (const uint8_t *)"Done", 4);
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}
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}
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quiche_stream_iter_free(readable);
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}
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while (1) {
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quiche_send_info send_info;
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ssize_t written = quiche_conn_send(conn, out, sizeof(out), &send_info);
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if (written == QUICHE_ERR_DONE) break;
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if (written < 0) break;
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send(sock, out, written, 0);
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}
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quiche_conn_on_timeout(conn);
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usleep(1000);
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}
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quiche_conn_free(conn);
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quiche_config_free(config);
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return 0;
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}
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