358 lines
9.0 KiB
C
358 lines
9.0 KiB
C
/*
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* (C) 2013 by Pablo Neira Ayuso <pablo@gnumonks.org>
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* (C) 2013 by On Waves ehf <http://www.on-waves.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#define OSMUX_TEST_USE_TIMING 0
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <string.h>
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#include <signal.h>
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#include <arpa/inet.h>
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#if OSMUX_TEST_USE_TIMING
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#include <sys/time.h>
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#endif
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#include <osmocom/core/select.h>
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#include <osmocom/core/application.h>
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#include <osmocom/core/logging.h>
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#include <osmocom/core/msgb.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/timer.h>
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#include <osmocom/netif/osmux.h>
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#include <osmocom/netif/rtp.h>
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#define DOSMUX_TEST 0
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struct log_info_cat osmux_test_cat[] = {
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[DOSMUX_TEST] = {
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.name = "DOSMUX_TEST",
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.description = "osmux test",
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.color = "\033[1;35m",
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.enabled = 1, .loglevel = LOGL_DEBUG,
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},
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};
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const struct log_info osmux_test_log_info = {
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.filter_fn = NULL,
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.cat = osmux_test_cat,
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.num_cat = ARRAY_SIZE(osmux_test_cat),
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};
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/* RTP packet with AMR payload */
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static uint8_t rtp_pkt[] = {
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0x80, 0x62, 0x3f, 0xcc, 0x00, 0x01, 0xa7, 0x6f, /* RTP */
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0x07, 0x09, 0x00, 0x62, 0x20, 0x14, 0xff, 0xd4, /* AMR */
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0xf9, 0xff, 0xfb, 0xe7, 0xeb, 0xf9, 0x9f, 0xf8,
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0xf2, 0x26, 0x33, 0x65, 0x54,
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};
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#define PKT_TIME_USEC 20*1000
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static int rtp_pkts;
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static int mark_pkts;
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#if OSMUX_TEST_USE_TIMING
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static struct timeval last;
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#endif
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#define clock_debug(fmt, args...) \
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do { \
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struct timespec ts; \
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struct timeval tv; \
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osmo_clock_gettime(CLOCK_MONOTONIC, &ts); \
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osmo_gettimeofday(&tv, NULL); \
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fprintf(stderr, "sys={%lu.%06lu}, mono={%lu.%06lu}: " fmt, \
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tv.tv_sec, tv.tv_usec, ts.tv_sec, ts.tv_nsec/1000, ##args); \
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} while(0)
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static void clock_override_enable(bool enable)
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{
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osmo_gettimeofday_override = enable;
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osmo_clock_override_enable(CLOCK_MONOTONIC, enable);
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}
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static void clock_override_add_debug(long sec, long usec, bool dbg)
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{
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osmo_gettimeofday_override_add(sec, usec);
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osmo_clock_override_add(CLOCK_MONOTONIC, sec, usec*1000);
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if (dbg)
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clock_debug("clock_override_add\n");
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}
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#define clock_override_add(sec, usec) clock_override_add_debug(sec, usec, true)
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static void tx_cb(struct msgb *msg, void *data)
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{
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struct rtp_hdr *rtph = (struct rtp_hdr *)msg->data;
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char buf[4096];
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#if OSMUX_TEST_USE_TIMING
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struct timeval now, diff;
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osmo_gettimeofday(&now, NULL);
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timersub(&now, &last, &diff);
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last = now;
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if (diff.tv_usec > 2*17000) {
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clock_debug("delivery of reconstructed RTP lagged"
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" (diff.tv_usec=%u > 2*17000)\n",
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(unsigned int)diff.tv_usec);
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exit(EXIT_FAILURE);
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}
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#endif
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osmo_rtp_snprintf(buf, sizeof(buf), msg);
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clock_debug("extracted packet: %s\n", buf);
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if (memcmp(msg->data + sizeof(struct rtp_hdr),
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rtp_pkt + sizeof(struct rtp_hdr),
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sizeof(rtp_pkt) - sizeof(struct rtp_hdr)) != 0) {
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clock_debug("payload mismatch!\n");
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exit(EXIT_FAILURE);
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}
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if (rtph->marker)
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mark_pkts--;
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rtp_pkts--;
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msgb_free(msg);
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}
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static struct osmux_out_handle *h_output;
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static void osmux_deliver(struct msgb *batch_msg, void *data)
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{
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struct osmux_hdr *osmuxh;
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char buf[2048];
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osmux_snprintf(buf, sizeof(buf), batch_msg);
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clock_debug("OSMUX message (len=%d): %s\n", batch_msg->len, buf);
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/* For each OSMUX message, extract the RTP messages and put them
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* in a list. Then, reconstruct transmission timing.
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*/
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while((osmuxh = osmux_xfrm_output_pull(batch_msg)) != NULL)
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osmux_xfrm_output_sched(h_output, osmuxh);
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msgb_free(batch_msg);
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}
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struct osmux_in_handle h_input = {
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.osmux_seq = 0, /* sequence number to start OSmux message from */
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.batch_factor = 4, /* batch up to 4 RTP messages */
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.deliver = osmux_deliver,
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};
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static void sigalarm_handler(int foo)
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{
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clock_debug("FAIL: test did not run successfully\n");
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exit(EXIT_FAILURE);
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}
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static void osmux_test_marker(int ccid) {
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struct msgb *msg;
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struct rtp_hdr *rtph = (struct rtp_hdr *)rtp_pkt;
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struct rtp_hdr *cpy_rtph;
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uint16_t seq;
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int i, j;
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for (i = 0; i < 64; i++) {
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seq = ntohs(rtph->sequence);
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seq++;
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rtph->sequence = htons(seq);
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for (j=0; j<4; j++) {
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msg = msgb_alloc(1500, "test");
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if (!msg)
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exit(EXIT_FAILURE);
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memcpy(msg->data, rtp_pkt, sizeof(rtp_pkt));
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cpy_rtph = (struct rtp_hdr *) msgb_put(msg, sizeof(rtp_pkt));
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/* first condition guarantees that 1st packet per stream contains M bit set. */
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if (i == 0 || (i+j) % 7 == 0) {
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cpy_rtph->marker = 1;
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mark_pkts++;
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}
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rtp_pkts++;
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while (osmux_xfrm_input(&h_input, msg, j + ccid) > 0) {
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osmux_xfrm_input_deliver(&h_input);
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}
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}
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#if !OSMUX_TEST_USE_TIMING
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clock_override_add(0, PKT_TIME_USEC);
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#endif
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}
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while (rtp_pkts) {
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#if !OSMUX_TEST_USE_TIMING
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clock_override_add(1, 0);
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#endif
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osmo_select_main(0);
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}
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if (mark_pkts) {
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clock_debug("osmux_test_marker: RTP M bit (marker) mismatch! %d\n", mark_pkts);
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exit(EXIT_FAILURE);
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}
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}
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static void osmux_test_loop(int ccid)
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{
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struct rtp_hdr *rtph = (struct rtp_hdr *)rtp_pkt;
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struct rtp_hdr *cpy_rtph;
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struct msgb *msg;
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int i, j, k = 0;
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char buf[1024];
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uint16_t seq;
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for (i = 1; i < 65; i++) {
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msg = msgb_alloc(1500, "test");
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if (!msg)
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exit(EXIT_FAILURE);
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memcpy(msg->data, rtp_pkt, sizeof(rtp_pkt));
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cpy_rtph = (struct rtp_hdr *) msgb_put(msg, sizeof(rtp_pkt));
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seq = ntohs(rtph->sequence);
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seq++;
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rtph->sequence = htons(seq);
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if (i < 3) {
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/* Mark 1 rtp packet of each stream */
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cpy_rtph->marker = 1;
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mark_pkts++;
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}
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osmo_rtp_snprintf(buf, sizeof(buf), msg);
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clock_debug("adding to ccid=%u %s\n", (i % 2) + ccid, buf);
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rtp_pkts++;
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k++;
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/* Fan out RTP packets between two circuit IDs to test
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* multi-batch support. Mind that this approach implicitly add
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* gaps between two messages to test the osmux replaying
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* feature.
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*/
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osmux_xfrm_input(&h_input, msg, (i % 2) + ccid);
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if (i % 4 == 0) {
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#if OSMUX_TEST_USE_TIMING
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osmo_gettimeofday(&last, NULL);
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#endif
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/* After four RTP messages, squash them into the OSMUX
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* batch and call the routine to deliver it.
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*/
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osmux_xfrm_input_deliver(&h_input);
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/* The first two RTP message (one per circuit ID batch)
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* are delivered immediately, wait until the three RTP
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* messages that are extracted from OSMUX has been
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* delivered.
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*/
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for (j = 0; j < k-2; j++) {
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osmo_select_main(0);
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#if !OSMUX_TEST_USE_TIMING
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clock_override_add(0, PKT_TIME_USEC);
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#endif
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}
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k = 0;
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}
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}
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if (mark_pkts) {
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clock_debug("osmux_test_loop: RTP M bit (marker) mismatch! %d\n", mark_pkts);
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exit(EXIT_FAILURE);
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}
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}
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int main(void)
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{
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int i;
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if (signal(SIGALRM, sigalarm_handler) == SIG_ERR) {
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perror("signal");
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exit(EXIT_FAILURE);
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}
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#if !OSMUX_TEST_USE_TIMING
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/* This test uses fake time to speedup the run, unless we want to manually
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* test time specific stuff */
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clock_override_enable(true);
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#endif
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/* This test doesn't use it, but osmux requires it internally. */
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void *tall_ctx = talloc_named_const(NULL, 1, "Root context");
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msgb_talloc_ctx_init(tall_ctx, 0);
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osmo_init_logging2(tall_ctx, &osmux_test_log_info);
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log_set_log_level(osmo_stderr_target, LOGL_DEBUG);
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log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE);
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log_set_print_category(osmo_stderr_target, 1);
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log_set_print_category_hex(osmo_stderr_target, 0);
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log_set_use_color(osmo_stderr_target, 0);
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h_output = osmux_xfrm_output_alloc(NULL);
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osmux_xfrm_output_set_rtp_ssrc(h_output, 0x7000000);
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osmux_xfrm_output_set_rtp_pl_type(h_output, 98);
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osmux_xfrm_output_set_tx_cb(h_output, tx_cb, NULL);
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/* These fields are set using random() */
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h_output->rtp_seq = 9158;
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h_output->rtp_timestamp = 1681692777;
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/* If the test takes longer than 10 seconds, abort it */
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alarm(10);
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#if !OSMUX_TEST_USE_TIMING
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/* Check if marker bit features work correctly */
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osmux_xfrm_input_init(&h_input);
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for (i = 0; i < 4; i++)
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osmux_xfrm_input_open_circuit(&h_input, i, 0);
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osmux_test_marker(0);
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for (i = 0; i < 4; i++)
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osmux_xfrm_input_close_circuit(&h_input, i);
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osmux_xfrm_input_fini(&h_input);
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#endif
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osmux_xfrm_input_init(&h_input);
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for (i = 0; i < 2; i++)
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osmux_xfrm_input_open_circuit(&h_input, i, 0);
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/* Add two circuits with dummy padding */
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osmux_xfrm_input_open_circuit(&h_input, 2, 1);
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osmux_xfrm_input_open_circuit(&h_input, 3, 1);
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/* Wait 10 times to make sure dummy padding timer works fine */
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for (i = 0; i < 10; i++)
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osmo_select_main(0);
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/* Start pushing voice data to circuits 0 and 1 */
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osmux_test_loop(0);
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/* ... now start pushing voice data to circuits 2 and 3. This circuits
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* comes with dummy padding enabled.
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*/
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osmux_test_loop(2);
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for (i = 0; i < 4; i++)
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osmux_xfrm_input_close_circuit(&h_input, i);
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/* Reopen with two circuits and retest */
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osmux_xfrm_input_open_circuit(&h_input, 0, 0);
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osmux_xfrm_input_open_circuit(&h_input, 1, 1);
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osmux_test_loop(0);
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osmux_xfrm_input_close_circuit(&h_input, 0);
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osmux_xfrm_input_close_circuit(&h_input, 1);
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osmux_xfrm_input_fini(&h_input);
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clock_debug("OK: Test passed\n");
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return EXIT_SUCCESS;
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}
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