/*
- * 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 <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];
+} sock_server_conn_t;
+
+typedef struct
+{
+ uint32_t port;
+ uint32_t address_ip6;
+ uint32_t transport_udp;
+} sock_server_cfg_t;
+
+#define SOCK_SERVER_MAX_TEST_CONN 10
+#define SOCK_SERVER_MAX_EPOLL_EVENTS 10
+typedef struct
+{
+ int listen_fd;
+ sock_server_cfg_t cfg;
+ int epfd;
+ struct epoll_event listen_ev;
+ struct epoll_event wait_events[SOCK_SERVER_MAX_EPOLL_EVENTS];
+ size_t num_conn;
+ size_t conn_pool_size;
+ sock_server_conn_t *conn_pool;
+ int nfds;
+ fd_set rd_fdset;
+ fd_set wr_fdset;
+ struct timeval timeout;
+} sock_server_main_t;
+
+sock_server_main_t sock_server_main;
+
+static inline void
+conn_pool_expand (size_t expand_size)
+{
+ sock_server_main_t *ssm = &sock_server_main;
+ sock_server_conn_t *conn_pool;
+ size_t new_size = ssm->conn_pool_size + expand_size;
+ int i;
+
+ conn_pool = realloc (ssm->conn_pool, new_size * sizeof (*ssm->conn_pool));
+ if (conn_pool)
+ {
+ for (i = ssm->conn_pool_size; i < new_size; i++)
+ {
+ sock_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;
+ }
+
+ ssm->conn_pool = conn_pool;
+ ssm->conn_pool_size = new_size;
+ }
+ else
+ {
+ int errno_val = errno;
+ perror ("ERROR in conn_pool_expand()");
+ fprintf (stderr, "SERVER: ERROR: Memory allocation "
+ "failed (errno = %d)!\n", errno_val);
+ }
+}
+
+static inline sock_server_conn_t *
+conn_pool_alloc (void)
+{
+ sock_server_main_t *ssm = &sock_server_main;
+ int i;
+
+ for (i = 0; i < ssm->conn_pool_size; i++)
+ {
+ if (!ssm->conn_pool[i].is_alloc)
+ {
+ ssm->conn_pool[i].endpt.ip = ssm->conn_pool[i].ip;
+ ssm->conn_pool[i].is_alloc = 1;
+ return (&ssm->conn_pool[i]);
+ }
+ }
+
+ return 0;
+}
+
+static inline void
+conn_pool_free (sock_server_conn_t * conn)
+{
+ conn->fd = 0;
+ conn->is_alloc = 0;
+}
+
+static inline void
+sync_config_and_reply (sock_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)
+ {
+ printf ("\nSERVER (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
+stream_test_server_start_stop (sock_server_conn_t * conn,
+ sock_test_cfg_t * rx_cfg)
+{
+ sock_server_main_t *ssm = &sock_server_main;
+ int client_fd = conn->fd;
+ sock_test_t test = rx_cfg->test;
+
+ if (rx_cfg->ctrl_handle == conn->fd)
+ {
+ int i;
+ clock_gettime (CLOCK_REALTIME, &conn->stats.stop);
+
+ for (i = 0; i < ssm->conn_pool_size; i++)
+ {
+ sock_server_conn_t *tc = &ssm->conn_pool[i];
+
+ if (tc->cfg.ctrl_handle == conn->fd)
+ {
+ sock_test_stats_accumulate (&conn->stats, &tc->stats);
+
+ if (conn->cfg.verbose)
+ {
+ static char buf[64];
+
+ sprintf (buf, "SERVER (fd %d) RESULTS", tc->fd);
+ sock_test_stats_dump (buf, &tc->stats, 1 /* show_rx */ ,
+ test == SOCK_TEST_TYPE_BI
+ /* show tx */ ,
+ conn->cfg.verbose);
+ }
+ }
+ }
+
+ sock_test_stats_dump ("SERVER RESULTS", &conn->stats, 1 /* show_rx */ ,
+ (test == SOCK_TEST_TYPE_BI) /* show_tx */ ,
+ conn->cfg.verbose);
+ sock_test_cfg_dump (&conn->cfg, 0 /* is_client */ );
+ if (conn->cfg.verbose)
+ {
+ printf (" 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);
+ printf ("\nSERVER (fd %d): %s-directional Stream Test Complete!\n"
+ SOCK_TEST_BANNER_STRING "\n", conn->fd,
+ test == SOCK_TEST_TYPE_BI ? "Bi" : "Uni");
+ }
+ else
+ {
+ printf ("\n" SOCK_TEST_BANNER_STRING
+ "SERVER (fd %d): %s-directional Stream Test!\n"
+ " Sending client the test cfg to start streaming data...\n",
+ client_fd, test == SOCK_TEST_TYPE_BI ? "Bi" : "Uni");
+
+ rx_cfg->ctrl_handle = (rx_cfg->ctrl_handle == ~0) ? conn->fd :
+ rx_cfg->ctrl_handle;
+
+ 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
+stream_test_server (sock_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 inline void
+new_client (void)
+{
+ sock_server_main_t *ssm = &sock_server_main;
+ int client_fd;
+ sock_server_conn_t *conn;
+
+ if (ssm->conn_pool_size < (ssm->num_conn + SOCK_SERVER_MAX_TEST_CONN + 1))
+ conn_pool_expand (SOCK_SERVER_MAX_TEST_CONN + 1);
+
+ conn = conn_pool_alloc ();
+ if (!conn)
+ {
+ fprintf (stderr, "\nSERVER: ERROR: No free connections!\n");
+ return;
+ }
+
+ client_fd = vppcom_session_accept (ssm->listen_fd, &conn->endpt, 0);
+ if (client_fd < 0)
+ {
+ int errno_val;
+ errno_val = errno = -client_fd;
+ perror ("ERROR in new_client()");
+ fprintf (stderr, "SERVER: ERROR: accept failed "
+ "(errno = %d)!\n", errno_val);
+ return;
+ }
+
+ printf ("SERVER: Got a connection -- fd = %d (0x%08x)!\n",
+ client_fd, client_fd);
+
+ conn->fd = client_fd;
+
+ {
+ struct epoll_event ev;
+ int rv;
+
+ ev.events = EPOLLIN;
+ ev.data.u64 = conn - ssm->conn_pool;
+ rv = vppcom_epoll_ctl (ssm->epfd, EPOLL_CTL_ADD, client_fd, &ev);
+ if (rv < 0)
+ {
+ int errno_val;
+ errno_val = errno = -rv;
+ perror ("ERROR in new_client()");
+ fprintf (stderr, "SERVER: ERROR: epoll_ctl failed (errno = %d)!\n",
+ errno_val);
+ }
+ else
+ ssm->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"
+ " -u Use UDP transport layer\n");
+ exit (1);
+}
+
+int
+main (int argc, char **argv)
+{
+ sock_server_main_t *ssm = &sock_server_main;
+ int client_fd, rv, main_rv = 0;
+ int tx_bytes, rx_bytes, nbytes;
+ sock_server_conn_t *conn;
+ sock_test_cfg_t *rx_cfg;
+ uint32_t xtra = 0;
+ uint64_t xtra_bytes = 0;
+ struct sockaddr_storage servaddr;
+ int errno_val;
+ int c, v, i;
+ uint16_t port = SOCK_TEST_SERVER_PORT;
+ vppcom_endpt_t endpt;
+
+ clib_mem_init_thread_safe (0, 64 << 20);
+
+ opterr = 0;
+ while ((c = getopt (argc, argv, "6D")) != -1)
+ switch (c)
+ {
+ case '6':
+ ssm->cfg.address_ip6 = 1;
+ break;
+
+ case 'D':
+ ssm->cfg.transport_udp = 1;
+ break;
+
+ case '?':
+ switch (optopt)
+ {
+ default:
+ if (isprint (optopt))
+ fprintf (stderr, "SERVER: ERROR: Unknown "
+ "option `-%c'.\n", optopt);
+ else
+ fprintf (stderr, "SERVER: ERROR: Unknown "
+ "option character `\\x%x'.\n", 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)
+ port = (uint16_t) v;
+ else
+ {
+ fprintf (stderr, "SERVER: ERROR: Invalid port (%s)!\n", argv[optind]);
+ print_usage_and_exit ();
+ }
+
+ conn_pool_expand (SOCK_SERVER_MAX_TEST_CONN + 1);
+
+ rv = vppcom_app_create ("vcl_test_server");
+ if (rv)
+ {
+ errno_val = errno = -rv;
+ perror ("ERROR in main()");
+ fprintf (stderr, "SERVER: ERROR: vppcom_app_create() failed "
+ "(errno = %d)!\n", errno_val);
+ return -1;
+ }
+ else
+ {
+ ssm->listen_fd = vppcom_session_create (ssm->cfg.transport_udp ?
+ VPPCOM_PROTO_UDP :
+ VPPCOM_PROTO_TCP,
+ 0 /* is_nonblocking */ );
+ }
+ if (ssm->listen_fd < 0)
+ {
+ errno_val = errno = -ssm->listen_fd;
+ perror ("ERROR in main()");
+ fprintf (stderr, "SERVER: ERROR: vppcom_session_create() failed "
+ "(errno = %d)!\n", errno_val);
+ return -1;
+ }
+
+ 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 (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 (port);
+ }
+
+ if (ssm->cfg.address_ip6)
+ {
+ struct sockaddr_in6 *server_addr = (struct sockaddr_in6 *) &servaddr;
+ endpt.is_ip4 = 0;
+ endpt.ip = (uint8_t *) & server_addr->sin6_addr;
+ endpt.port = (uint16_t) server_addr->sin6_port;
+ }
+ else
+ {
+ struct sockaddr_in *server_addr = (struct sockaddr_in *) &servaddr;
+ endpt.is_ip4 = 1;
+ endpt.ip = (uint8_t *) & server_addr->sin_addr;
+ endpt.port = (uint16_t) server_addr->sin_port;
+ }
+
+ rv = vppcom_session_bind (ssm->listen_fd, &endpt);
+ if (rv < 0)
+ {
+ errno_val = errno = -rv;
+ perror ("ERROR in main()");
+ fprintf (stderr, "SERVER: ERROR: bind failed (errno = %d)!\n",
+ errno_val);
+ return -1;
+ }
+
+ rv = vppcom_session_listen (ssm->listen_fd, 10);
+ if (rv < 0)
+ {
+ errno_val = errno = -rv;
+ perror ("ERROR in main()");
+ fprintf (stderr, "SERVER: ERROR: listen failed "
+ "(errno = %d)!\n", errno_val);
+ return -1;
+ }
+
+ ssm->epfd = vppcom_epoll_create ();
+ if (ssm->epfd < 0)
+ {
+ errno_val = errno = -ssm->epfd;
+ perror ("ERROR in main()");
+ fprintf (stderr, "SERVER: ERROR: epoll_create failed (errno = %d)!\n",
+ errno_val);
+ return -1;
+ }
+
+ ssm->listen_ev.events = EPOLLIN;
+ ssm->listen_ev.data.u32 = ~0;
+ rv = vppcom_epoll_ctl (ssm->epfd, EPOLL_CTL_ADD, ssm->listen_fd,
+ &ssm->listen_ev);
+ if (rv < 0)
+ {
+ errno_val = errno = -rv;
+ perror ("ERROR in main()");
+ fprintf (stderr, "SERVER: ERROR: epoll_ctl failed "
+ "(errno = %d)!\n", errno_val);
+ return -1;
+ }
+ printf ("\nSERVER: Waiting for a client to connect on port %d...\n", port);
+
+ while (1)
+ {
+ int num_ev;
+ num_ev = vppcom_epoll_wait (ssm->epfd, ssm->wait_events,
+ SOCK_SERVER_MAX_EPOLL_EVENTS, 60.0);
+ if (num_ev < 0)
+ {
+ errno = -num_ev;
+ perror ("epoll_wait()");
+ fprintf (stderr, "\nSERVER: ERROR: epoll_wait() "
+ "failed -- aborting!\n");
+ main_rv = -1;
+ goto done;
+ }
+ else if (num_ev == 0)
+ {
+ fprintf (stderr, "\nSERVER: epoll_wait() timeout!\n");
+ continue;
+ }
+ for (i = 0; i < num_ev; i++)
+ {
+ conn = &ssm->conn_pool[ssm->wait_events[i].data.u32];
+ if (ssm->wait_events[i].events & (EPOLLHUP | EPOLLRDHUP))
+ {
+ vppcom_session_close (conn->fd);
+ continue;
+ }
+ if (ssm->wait_events[i].data.u32 == ~0)
+ {
+ new_client ();
+ continue;
+ }
+ client_fd = conn->fd;
+
+ if (EPOLLIN & ssm->wait_events[i].events)
+ {
+ rx_bytes = vcl_test_read (client_fd, conn->buf,
+ conn->buf_size, &conn->stats);
+ if (rx_bytes > 0)
+ {
+ rx_cfg = (sock_test_cfg_t *) conn->buf;
+ if (rx_cfg->magic == SOCK_TEST_CFG_CTRL_MAGIC)
+ {
+ if (rx_cfg->verbose)
+ {
+ printf ("SERVER (fd %d): Received a cfg message!\n",
+ client_fd);
+ sock_test_cfg_dump (rx_cfg, 0 /* is_client */ );
+ }
+
+ if (rx_bytes != sizeof (*rx_cfg))
+ {
+ printf ("SERVER (fd %d): Invalid cfg message "
+ "size (%d)!\n Should be %lu bytes.\n",
+ client_fd, rx_bytes, sizeof (*rx_cfg));
+ conn->cfg.rxbuf_size = 0;
+ conn->cfg.num_writes = 0;
+ if (conn->cfg.verbose)
+ {
+ printf ("SERVER (fd %d): Replying to "
+ "cfg message!\n", client_fd);
+ sock_test_cfg_dump (rx_cfg, 0 /* is_client */ );
+ }
+ vcl_test_write (client_fd, (uint8_t *) & conn->cfg,
+ sizeof (conn->cfg), NULL,
+ conn->cfg.verbose);
+ continue;
+ }
+
+ 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:
+ stream_test_server_start_stop (conn, rx_cfg);
+ break;
+
+ case SOCK_TEST_TYPE_EXIT:
+ printf ("SERVER: Have a great day, "
+ "connection %d!\n", client_fd);
+ vppcom_session_close (client_fd);
+ conn_pool_free (conn);
+ printf ("SERVER: Closed client fd %d\n", client_fd);
+ ssm->nfds--;
+ if (!ssm->nfds)
+ {
+ printf ("SERVER: All client connections "
+ "closed.\n\nSERVER: "
+ "May the force be with you!\n\n");
+ goto done;
+ }
+ break;
+
+ default:
+ fprintf (stderr,
+ "SERVER: ERROR: Unknown test type!\n");
+ sock_test_cfg_dump (rx_cfg, 0 /* is_client */ );
+ break;
+ }
+ continue;
+ }
+
+ else if ((conn->cfg.test == SOCK_TEST_TYPE_UNI) ||
+ (conn->cfg.test == SOCK_TEST_TYPE_BI))
+ {
+ stream_test_server (conn, rx_bytes);
+ continue;
+ }
+
+ else if (isascii (conn->buf[0]))
+ {
+ /* If it looks vaguely like a string,
+ * make sure it's terminated.
+ */
+ ((char *) conn->buf)[rx_bytes <
+ conn->buf_size ? rx_bytes :
+ conn->buf_size - 1] = 0;
+ printf ("SERVER (fd %d): RX (%d bytes) - '%s'\n",
+ conn->fd, rx_bytes, conn->buf);
+ }
+ }
+ else // rx_bytes < 0
+ {
+ if (errno == ECONNRESET)
+ {
+ printf ("\nSERVER: Connection reset by remote peer.\n"
+ " Y'all have a great day now!\n\n");
+ break;
+ }
+ else
+ continue;
+ }
+
+ if (isascii (conn->buf[0]))
+ {
+ /* If it looks vaguely like a string,
+ * make sure it's terminated
+ */
+ ((char *) conn->buf)[rx_bytes <
+ conn->buf_size ? rx_bytes :
+ conn->buf_size - 1] = 0;
+ if (xtra)
+ fprintf (stderr, "SERVER: ERROR: "
+ "FIFO not drained in previous test!\n"
+ " extra chunks %u (0x%x)\n"
+ " extra bytes %lu (0x%lx)\n",
+ xtra, xtra, xtra_bytes, xtra_bytes);
+
+ xtra = 0;
+ xtra_bytes = 0;
+
+ if (conn->cfg.verbose)
+ printf ("SERVER (fd %d): Echoing back\n", client_fd);
+
+ nbytes = strlen ((const char *) conn->buf) + 1;
+
+ tx_bytes = vcl_test_write (client_fd, conn->buf,
+ nbytes, &conn->stats,
+ conn->cfg.verbose);
+ if (tx_bytes >= 0)
+ printf ("SERVER (fd %d): TX (%d bytes) - '%s'\n",
+ conn->fd, tx_bytes, conn->buf);
+ }
+
+ else // Extraneous read data from non-echo tests???
+ {
+ xtra++;
+ xtra_bytes += rx_bytes;
+ }
+ }
+ }
+ }
+
+done:
+ vppcom_session_close (ssm->listen_fd);
+ vppcom_app_destroy ();
+
+ if (ssm->conn_pool)
+ free (ssm->conn_pool);
+
+ return main_rv;
+}
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff