/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Copyright (c) 2017-2018 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
* limitations under the License.
*/
-#define VCL_TEST
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <ctype.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <vcl/vcl_test.h>
+#include <sys/epoll.h>
+#include <vppinfra/mem.h>
+#include <pthread.h>
-#include <vcl/vppcom.h>
-#include <vcl/sock_test_server.c>
+typedef struct
+{
+ uint8_t is_alloc;
+ int fd;
+ uint8_t *buf;
+ uint32_t buf_size;
+ sock_test_cfg_t cfg;
+ sock_test_stats_t stats;
+ vppcom_endpt_t endpt;
+ uint8_t ip[16];
+} vcl_test_server_conn_t;
+
+typedef struct
+{
+ uint16_t port;
+ uint32_t address_ip6;
+ u8 proto;
+ u8 workers;
+ vppcom_endpt_t endpt;
+} vcl_test_server_cfg_t;
+
+#define SOCK_SERVER_MAX_TEST_CONN 16
+#define SOCK_SERVER_MAX_EPOLL_EVENTS 16
+
+typedef struct
+{
+ uint32_t wrk_index;
+ int listen_fd;
+ int epfd;
+ struct epoll_event wait_events[SOCK_SERVER_MAX_EPOLL_EVENTS];
+ size_t conn_pool_size;
+ vcl_test_server_conn_t *conn_pool;
+ int nfds;
+ pthread_t thread_handle;
+} vcl_test_server_worker_t;
+
+typedef struct
+{
+ vcl_test_server_cfg_t cfg;
+ vcl_test_server_worker_t *workers;
+
+ struct sockaddr_storage servaddr;
+ volatile int worker_fails;
+ volatile int active_workers;
+} vcl_test_server_main_t;
+
+static __thread int __wrk_index = 0;
+
+static vcl_test_server_main_t sock_server_main;
+
+static inline void
+conn_pool_expand (vcl_test_server_worker_t * wrk, size_t expand_size)
+{
+ vcl_test_server_conn_t *conn_pool;
+ size_t new_size = wrk->conn_pool_size + expand_size;
+ int i;
+
+ conn_pool = realloc (wrk->conn_pool, new_size * sizeof (*wrk->conn_pool));
+ if (conn_pool)
+ {
+ for (i = wrk->conn_pool_size; i < new_size; i++)
+ {
+ vcl_test_server_conn_t *conn = &conn_pool[i];
+ memset (conn, 0, sizeof (*conn));
+ sock_test_cfg_init (&conn->cfg);
+ sock_test_buf_alloc (&conn->cfg, 1 /* is_rxbuf */ ,
+ &conn->buf, &conn->buf_size);
+ conn->cfg.txbuf_size = conn->cfg.rxbuf_size;
+ }
+
+ wrk->conn_pool = conn_pool;
+ wrk->conn_pool_size = new_size;
+ }
+ else
+ {
+ vterr ("conn_pool_expand()", -errno);
+ }
+}
+
+static inline vcl_test_server_conn_t *
+conn_pool_alloc (vcl_test_server_worker_t * wrk)
+{
+ int i;
+
+ for (i = 0; i < wrk->conn_pool_size; i++)
+ {
+ if (!wrk->conn_pool[i].is_alloc)
+ {
+ wrk->conn_pool[i].endpt.ip = wrk->conn_pool[i].ip;
+ wrk->conn_pool[i].is_alloc = 1;
+ return (&wrk->conn_pool[i]);
+ }
+ }
+
+ return 0;
+}
+
+static inline void
+conn_pool_free (vcl_test_server_conn_t * conn)
+{
+ conn->fd = 0;
+ conn->is_alloc = 0;
+}
+
+static inline void
+sync_config_and_reply (vcl_test_server_conn_t * conn,
+ sock_test_cfg_t * rx_cfg)
+{
+ conn->cfg = *rx_cfg;
+ sock_test_buf_alloc (&conn->cfg, 1 /* is_rxbuf */ ,
+ &conn->buf, &conn->buf_size);
+ conn->cfg.txbuf_size = conn->cfg.rxbuf_size;
+
+ if (conn->cfg.verbose)
+ {
+ vtinf ("(fd %d): Replying to cfg message!\n", conn->fd);
+ sock_test_cfg_dump (&conn->cfg, 0 /* is_client */ );
+ }
+ (void) vcl_test_write (conn->fd, (uint8_t *) & conn->cfg,
+ sizeof (conn->cfg), NULL, conn->cfg.verbose);
+}
+
+static void
+vts_server_start_stop (vcl_test_server_worker_t * wrk,
+ vcl_test_server_conn_t * conn,
+ sock_test_cfg_t * rx_cfg)
+{
+ u8 is_bi = rx_cfg->test == SOCK_TEST_TYPE_BI;
+ int client_fd = conn->fd, i;
+ vcl_test_server_conn_t *tc;
+ char buf[64];
+
+ if (rx_cfg->ctrl_handle == conn->fd)
+ {
+ clock_gettime (CLOCK_REALTIME, &conn->stats.stop);
+
+ for (i = 0; i < wrk->conn_pool_size; i++)
+ {
+ tc = &wrk->conn_pool[i];
+ if (tc->cfg.ctrl_handle != conn->fd)
+ continue;
+
+ sock_test_stats_accumulate (&conn->stats, &tc->stats);
+
+ if (conn->cfg.verbose)
+ {
+ sprintf (buf, "SERVER (fd %d) RESULTS", tc->fd);
+ sock_test_stats_dump (buf, &tc->stats, 1 /* show_rx */ ,
+ is_bi /* show tx */ , conn->cfg.verbose);
+ }
+ }
+
+ sock_test_stats_dump ("SERVER RESULTS", &conn->stats, 1 /* show_rx */ ,
+ is_bi /* show_tx */ , conn->cfg.verbose);
+ sock_test_cfg_dump (&conn->cfg, 0 /* is_client */ );
+ if (conn->cfg.verbose)
+ {
+ vtinf (" sock server main\n"
+ SOCK_TEST_SEPARATOR_STRING
+ " buf: %p\n"
+ " buf size: %u (0x%08x)\n"
+ SOCK_TEST_SEPARATOR_STRING,
+ conn->buf, conn->buf_size, conn->buf_size);
+ }
+
+ sync_config_and_reply (conn, rx_cfg);
+ vtinf ("(fd %d): %s-directional Stream Test Complete!\n"
+ SOCK_TEST_BANNER_STRING "\n", conn->fd, is_bi ? "Bi" : "Uni");
+ }
+ else
+ {
+ vtinf (SOCK_TEST_BANNER_STRING "(fd %d): %s-directional Stream Test!\n"
+ " Sending client the test cfg to start streaming data...\n",
+ client_fd, is_bi ? "Bi" : "Uni");
+
+ if (rx_cfg->ctrl_handle == ~0)
+ rx_cfg->ctrl_handle = conn->fd;
+
+ sync_config_and_reply (conn, rx_cfg);
+
+ /* read the 1st chunk, record start time */
+ memset (&conn->stats, 0, sizeof (conn->stats));
+ clock_gettime (CLOCK_REALTIME, &conn->stats.start);
+ }
+}
+
+static inline void
+vts_server_rx (vcl_test_server_conn_t * conn, int rx_bytes)
+{
+ int client_fd = conn->fd;
+ sock_test_t test = conn->cfg.test;
+
+ if (test == SOCK_TEST_TYPE_BI)
+ (void) vcl_test_write (client_fd, conn->buf, rx_bytes, &conn->stats,
+ conn->cfg.verbose);
+
+ if (conn->stats.rx_bytes >= conn->cfg.total_bytes)
+ clock_gettime (CLOCK_REALTIME, &conn->stats.stop);
+}
+
+static void
+vts_server_echo (vcl_test_server_conn_t * conn, int rx_bytes)
+{
+ int tx_bytes, nbytes, pos;
+
+ /* If it looks vaguely like a string,
+ * make sure it's terminated
+ */
+ pos = rx_bytes < conn->buf_size ? rx_bytes : conn->buf_size - 1;
+ ((char *) conn->buf)[pos] = 0;
+ vtinf ("(fd %d): RX (%d bytes) - '%s'", conn->fd, rx_bytes, conn->buf);
+
+ if (conn->cfg.verbose)
+ vtinf ("(fd %d): Echoing back", conn->fd);
+
+ nbytes = strlen ((const char *) conn->buf) + 1;
+ tx_bytes = vcl_test_write (conn->fd, conn->buf, nbytes, &conn->stats,
+ conn->cfg.verbose);
+ if (tx_bytes >= 0)
+ vtinf ("(fd %d): TX (%d bytes) - '%s'", conn->fd, tx_bytes, conn->buf);
+}
+
+static inline void
+vts_new_client (vcl_test_server_worker_t * wrk)
+{
+ int client_fd;
+ vcl_test_server_conn_t *conn;
+
+ conn = conn_pool_alloc (wrk);
+ if (!conn)
+ {
+ vtwrn ("No free connections!");
+ return;
+ }
+
+ client_fd = vppcom_session_accept (wrk->listen_fd, &conn->endpt, 0);
+ if (client_fd < 0)
+ {
+ vterr ("vppcom_session_accept()", client_fd);
+ return;
+ }
+
+ vtinf ("Got a connection -- fd = %d (0x%08x)!", client_fd, client_fd);
+
+ conn->fd = client_fd;
+
+ {
+ struct epoll_event ev;
+ int rv;
+
+ ev.events = EPOLLIN;
+ ev.data.u64 = conn - wrk->conn_pool;
+ rv = vppcom_epoll_ctl (wrk->epfd, EPOLL_CTL_ADD, client_fd, &ev);
+ if (rv < 0)
+ {
+ vterr ("vppcom_epoll_ctl()", rv);
+ return;
+ }
+ wrk->nfds++;
+ }
+}
+
+void
+print_usage_and_exit (void)
+{
+ fprintf (stderr,
+ "sock_test_server [OPTIONS] <port>\n"
+ " OPTIONS\n"
+ " -h Print this message and exit.\n"
+ " -6 Use IPv6\n"
+ " -w <num> Number of workers\n"
+ " -u Use UDP transport layer\n");
+ exit (1);
+}
+
+static void
+vcl_test_init_endpoint_addr (vcl_test_server_main_t * ssm)
+{
+ struct sockaddr_storage *servaddr = &ssm->servaddr;
+ memset (servaddr, 0, sizeof (*servaddr));
+
+ if (ssm->cfg.address_ip6)
+ {
+ struct sockaddr_in6 *server_addr = (struct sockaddr_in6 *) servaddr;
+ server_addr->sin6_family = AF_INET6;
+ server_addr->sin6_addr = in6addr_any;
+ server_addr->sin6_port = htons (ssm->cfg.port);
+ }
+ else
+ {
+ struct sockaddr_in *server_addr = (struct sockaddr_in *) servaddr;
+ server_addr->sin_family = AF_INET;
+ server_addr->sin_addr.s_addr = htonl (INADDR_ANY);
+ server_addr->sin_port = htons (ssm->cfg.port);
+ }
+
+ if (ssm->cfg.address_ip6)
+ {
+ struct sockaddr_in6 *server_addr = (struct sockaddr_in6 *) servaddr;
+ ssm->cfg.endpt.is_ip4 = 0;
+ ssm->cfg.endpt.ip = (uint8_t *) & server_addr->sin6_addr;
+ ssm->cfg.endpt.port = (uint16_t) server_addr->sin6_port;
+ }
+ else
+ {
+ struct sockaddr_in *server_addr = (struct sockaddr_in *) servaddr;
+ ssm->cfg.endpt.is_ip4 = 1;
+ ssm->cfg.endpt.ip = (uint8_t *) & server_addr->sin_addr;
+ ssm->cfg.endpt.port = (uint16_t) server_addr->sin_port;
+ }
+}
+
+static void
+vcl_test_server_process_opts (vcl_test_server_main_t * ssm, int argc,
+ char **argv)
+{
+ int v, c;
+
+ ssm->cfg.proto = VPPCOM_PROTO_TCP;
+
+ opterr = 0;
+ while ((c = getopt (argc, argv, "6Dw:")) != -1)
+ switch (c)
+ {
+ case '6':
+ ssm->cfg.address_ip6 = 1;
+ break;
+
+ case 'D':
+ ssm->cfg.proto = VPPCOM_PROTO_UDP;
+ break;
+
+ case 'w':
+ v = atoi (optarg);
+ if (v > 1)
+ ssm->cfg.workers = v;
+ else
+ vtwrn ("Invalid number of workers %d", v);
+ break;
+
+ case '?':
+ switch (optopt)
+ {
+ default:
+ if (isprint (optopt))
+ vtwrn ("Unknown option `-%c'.", optopt);
+ else
+ vtwrn ("Unknown option character `\\x%x'.", optopt);
+ }
+ /* fall thru */
+ case 'h':
+ default:
+ print_usage_and_exit ();
+ }
+
+ if (argc < (optind + 1))
+ {
+ fprintf (stderr, "SERVER: ERROR: Insufficient number of arguments!\n");
+ print_usage_and_exit ();
+ }
+
+ if (sscanf (argv[optind], "%d", &v) == 1)
+ ssm->cfg.port = (uint16_t) v;
+ else
+ {
+ fprintf (stderr, "SERVER: ERROR: Invalid port (%s)!\n", argv[optind]);
+ print_usage_and_exit ();
+ }
+
+ vcl_test_init_endpoint_addr (ssm);
+}
+
+int
+vts_handle_cfg (vcl_test_server_worker_t * wrk, sock_test_cfg_t * rx_cfg,
+ vcl_test_server_conn_t * conn, int rx_bytes)
+{
+ if (rx_cfg->verbose)
+ {
+ vtinf ("(fd %d): Received a cfg msg!", conn->fd);
+ sock_test_cfg_dump (rx_cfg, 0 /* is_client */ );
+ }
+
+ if (rx_bytes != sizeof (*rx_cfg))
+ {
+ vtinf ("(fd %d): Invalid cfg msg size %d expected %lu!", conn->fd,
+ rx_bytes, sizeof (*rx_cfg));
+ conn->cfg.rxbuf_size = 0;
+ conn->cfg.num_writes = 0;
+ if (conn->cfg.verbose)
+ {
+ vtinf ("(fd %d): Replying to cfg msg", conn->fd);
+ sock_test_cfg_dump (rx_cfg, 0 /* is_client */ );
+ }
+ vcl_test_write (conn->fd, (uint8_t *) & conn->cfg,
+ sizeof (conn->cfg), NULL, conn->cfg.verbose);
+ return -1;
+ }
+
+ switch (rx_cfg->test)
+ {
+ case SOCK_TEST_TYPE_NONE:
+ case SOCK_TEST_TYPE_ECHO:
+ sync_config_and_reply (conn, rx_cfg);
+ break;
+
+ case SOCK_TEST_TYPE_BI:
+ case SOCK_TEST_TYPE_UNI:
+ vts_server_start_stop (wrk, conn, rx_cfg);
+ break;
+
+ case SOCK_TEST_TYPE_EXIT:
+ vtinf ("Have a great day conn %d (closing)!", conn->fd);
+ vppcom_session_close (conn->fd);
+ conn_pool_free (conn);
+ wrk->nfds--;
+ break;
+
+ default:
+ vtwrn ("Unknown test type %d", rx_cfg->test);
+ sock_test_cfg_dump (rx_cfg, 0 /* is_client */ );
+ break;
+ }
+
+ return 0;
+}
+
+static void
+vts_worker_init (vcl_test_server_worker_t * wrk)
+{
+ vcl_test_server_main_t *ssm = &sock_server_main;
+ struct epoll_event listen_ev;
+ int rv;
+
+ __wrk_index = wrk->wrk_index;
+
+ vtinf ("Initializing worker ...");
+
+ conn_pool_expand (wrk, SOCK_SERVER_MAX_TEST_CONN + 1);
+ if (wrk->wrk_index)
+ if (vppcom_worker_register ())
+ vtfail ("vppcom_worker_register()", 1);
+
+ wrk->listen_fd = vppcom_session_create (ssm->cfg.proto,
+ 0 /* is_nonblocking */ );
+ if (wrk->listen_fd < 0)
+ vtfail ("vppcom_session_create()", wrk->listen_fd);
+
+ rv = vppcom_session_bind (wrk->listen_fd, &ssm->cfg.endpt);
+ if (rv < 0)
+ vtfail ("vppcom_session_bind()", rv);
+
+ if (!(ssm->cfg.proto == VPPCOM_PROTO_UDP))
+ {
+ rv = vppcom_session_listen (wrk->listen_fd, 10);
+ if (rv < 0)
+ vtfail ("vppcom_session_listen()", rv);
+ }
+
+ wrk->epfd = vppcom_epoll_create ();
+ if (wrk->epfd < 0)
+ vtfail ("vppcom_epoll_create()", wrk->epfd);
+
+ listen_ev.events = EPOLLIN;
+ listen_ev.data.u32 = ~0;
+ rv = vppcom_epoll_ctl (wrk->epfd, EPOLL_CTL_ADD, wrk->listen_fd,
+ &listen_ev);
+ if (rv < 0)
+ vtfail ("vppcom_epoll_ctl", rv);
+
+ vtinf ("Waiting for a client to connect on port %d ...", ssm->cfg.port);
+}
+
+static void *
+vts_worker_loop (void *arg)
+{
+ vcl_test_server_main_t *ssm = &sock_server_main;
+ vcl_test_server_worker_t *wrk = arg;
+ vcl_test_server_conn_t *conn;
+ int i, rx_bytes, num_ev;
+ sock_test_cfg_t *rx_cfg;
+
+ if (wrk->wrk_index)
+ vts_worker_init (wrk);
+
+ while (1)
+ {
+ num_ev = vppcom_epoll_wait (wrk->epfd, wrk->wait_events,
+ SOCK_SERVER_MAX_EPOLL_EVENTS, 60000.0);
+ if (num_ev < 0)
+ {
+ vterr ("vppcom_epoll_wait()", num_ev);
+ goto fail;
+ }
+ else if (num_ev == 0)
+ {
+ vtinf ("vppcom_epoll_wait() timeout!");
+ continue;
+ }
+ for (i = 0; i < num_ev; i++)
+ {
+ conn = &wrk->conn_pool[wrk->wait_events[i].data.u32];
+ if (wrk->wait_events[i].events & (EPOLLHUP | EPOLLRDHUP))
+ {
+ vppcom_session_close (conn->fd);
+ continue;
+ }
+ if (wrk->wait_events[i].data.u32 == ~0)
+ {
+ vts_new_client (wrk);
+ continue;
+ }
+
+ if (EPOLLIN & wrk->wait_events[i].events)
+ {
+ rx_bytes = vcl_test_read (conn->fd, conn->buf,
+ conn->buf_size, &conn->stats);
+
+ if (rx_bytes <= 0)
+ {
+ if (errno == ECONNRESET)
+ {
+ vtinf ("Connection reset by remote peer.\n");
+ goto fail;
+ }
+ else
+ continue;
+ }
+
+ rx_cfg = (sock_test_cfg_t *) conn->buf;
+ if (rx_cfg->magic == SOCK_TEST_CFG_CTRL_MAGIC)
+ {
+ vts_handle_cfg (wrk, rx_cfg, conn, rx_bytes);
+ if (!wrk->nfds)
+ {
+ vtinf ("All client connections closed\n");
+ vtinf ("May the force be with you!\n");
+ goto done;
+ }
+ continue;
+ }
+ else if ((conn->cfg.test == SOCK_TEST_TYPE_UNI)
+ || (conn->cfg.test == SOCK_TEST_TYPE_BI))
+ {
+ vts_server_rx (conn, rx_bytes);
+ continue;
+ }
+ else if (isascii (conn->buf[0]))
+ {
+ vts_server_echo (conn, rx_bytes);
+ }
+ else
+ {
+ vtwrn ("FIFO not drained! extra bytes %d", rx_bytes);
+ }
+ }
+ else
+ {
+ vtwrn ("Unhandled event");
+ goto fail;
+ }
+ }
+ }
+
+fail:
+ ssm->worker_fails -= 1;
+
+done:
+ vppcom_session_close (wrk->listen_fd);
+ if (wrk->conn_pool)
+ free (wrk->conn_pool);
+ ssm->active_workers -= 1;
+ return 0;
+}
+
+int
+main (int argc, char **argv)
+{
+ vcl_test_server_main_t *vsm = &sock_server_main;
+ int rv, i;
+
+ clib_mem_init_thread_safe (0, 64 << 20);
+ vsm->cfg.port = SOCK_TEST_SERVER_PORT;
+ vsm->cfg.workers = 1;
+ vsm->active_workers = 1;
+ vcl_test_server_process_opts (vsm, argc, argv);
+
+ rv = vppcom_app_create ("vcl_test_server");
+ if (rv)
+ vtfail ("vppcom_app_create()", rv);
+
+ vsm->workers = calloc (vsm->cfg.workers, sizeof (*vsm->workers));
+ vts_worker_init (&vsm->workers[0]);
+ for (i = 1; i < vsm->cfg.workers; i++)
+ {
+ vsm->workers[i].wrk_index = i;
+ rv = pthread_create (&vsm->workers[i].thread_handle, NULL,
+ vts_worker_loop, (void *) &vsm->workers[i]);
+ }
+ vts_worker_loop (&vsm->workers[0]);
+
+ while (vsm->active_workers > 0)
+ ;
+
+ vppcom_app_destroy ();
+ free (vsm->workers);
+
+ return vsm->worker_fails;
+}
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff