2014-10-14 12:49:37 +00:00
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/* Test routines for the BSSGP implementation in libosmogb
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*
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* (C) 2014 by sysmocom s.f.m.c. GmbH
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* Author: Jacob Erlbeck <jerlbeck@sysmocom.de>
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*
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* Skeleton based on bssgp_fc_test.c
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* (C) 2012 by Harald Welte <laforge@gnumonks.org>
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*/
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#undef _GNU_SOURCE
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#define _GNU_SOURCE
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#include <osmocom/core/application.h>
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#include <osmocom/core/utils.h>
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#include <osmocom/core/logging.h>
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#include <osmocom/core/talloc.h>
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#include <osmocom/core/prim.h>
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#include <osmocom/gprs/gprs_bssgp.h>
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#include <osmocom/gprs/gprs_ns.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <getopt.h>
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#include <unistd.h>
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#include <netinet/ip.h>
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2014-10-25 10:19:56 +00:00
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#include <sys/socket.h>
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2014-10-14 12:49:37 +00:00
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#include <dlfcn.h>
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#define BSS_NSEI 0x0b55
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static struct osmo_prim_hdr last_oph = {0};
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/* override */
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ssize_t sendto(int sockfd, const void *buf, size_t len, int flags,
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const struct sockaddr *dest_addr, socklen_t addrlen)
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{
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typedef ssize_t (*sendto_t)(int, const void *, size_t, int,
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const struct sockaddr *, socklen_t);
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static sendto_t real_sendto = NULL;
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uint32_t dest_host = htonl(((struct sockaddr_in *)dest_addr)->sin_addr.s_addr);
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if (!real_sendto)
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real_sendto = dlsym(RTLD_NEXT, "sendto");
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fprintf(stderr, "MESSAGE to 0x%08x, msg length %d\n%s\n",
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dest_host, len, osmo_hexdump(buf, len));
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return len;
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}
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/* override */
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int gprs_ns_callback(enum gprs_ns_evt event, struct gprs_nsvc *nsvc,
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struct msgb *msg, uint16_t bvci)
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{
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fprintf(stderr, "CALLBACK, event %d, msg length %d, bvci 0x%04x\n%s\n\n",
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event, msgb_bssgp_len(msg), bvci,
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osmo_hexdump(msgb_bssgph(msg), msgb_bssgp_len(msg)));
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return 0;
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}
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int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
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{
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printf("BSSGP primitive, SAP %d, prim = %d, op = %d, msg = %s\n",
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oph->sap, oph->primitive, oph->operation, msgb_hexdump(oph->msg));
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last_oph.sap = oph->sap;
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last_oph.primitive = oph->primitive;
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last_oph.operation = oph->operation;
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last_oph.msg = NULL;
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return -1;
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}
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static void msgb_bssgp_send_and_free(struct msgb *msg)
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{
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msgb_nsei(msg) = BSS_NSEI;
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bssgp_rcvmsg(msg);
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msgb_free(msg);
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}
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static void send_bssgp_supend(enum bssgp_pdu_type pdu_type, uint32_t tlli)
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{
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struct msgb *msg = bssgp_msgb_alloc();
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uint32_t tlli_be = htonl(tlli);
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uint8_t rai[] = {0x0f, 0xf1, 0x80, 0x20, 0x37, 0x00};
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msgb_v_put(msg, pdu_type);
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msgb_tvlv_put(msg, BSSGP_IE_TLLI, sizeof(tlli_be), (uint8_t *)&tlli_be);
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msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, sizeof(rai), &rai[0]);
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msgb_bssgp_send_and_free(msg);
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}
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static void send_bssgp_resume(enum bssgp_pdu_type pdu_type, uint32_t tlli)
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{
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struct msgb *msg = bssgp_msgb_alloc();
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uint32_t tlli_be = htonl(tlli);
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uint8_t rai[] = {0x0f, 0xf1, 0x80, 0x20, 0x37, 0x00};
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uint8_t suspend_ref = 1;
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msgb_v_put(msg, pdu_type);
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msgb_tvlv_put(msg, BSSGP_IE_TLLI, sizeof(tlli_be), (uint8_t *)&tlli_be);
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msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, sizeof(rai), &rai[0]);
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msgb_tvlv_put(msg, BSSGP_IE_SUSPEND_REF_NR, 1, &suspend_ref);
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msgb_bssgp_send_and_free(msg);
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}
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static void test_bssgp_suspend_resume(void)
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{
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const uint32_t tlli = 0xf0123456;
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printf("----- %s START\n", __func__);
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memset(&last_oph, 0, sizeof(last_oph));
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send_bssgp_supend(BSSGP_PDUT_SUSPEND, tlli);
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2014-09-10 10:43:28 +00:00
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OSMO_ASSERT(last_oph.primitive == PRIM_BSSGP_GMM_SUSPEND);
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2014-10-14 12:49:37 +00:00
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send_bssgp_resume(BSSGP_PDUT_RESUME, tlli);
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2014-09-10 10:43:28 +00:00
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OSMO_ASSERT(last_oph.primitive == PRIM_BSSGP_GMM_RESUME);
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2014-10-14 12:49:37 +00:00
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printf("----- %s END\n", __func__);
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}
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static struct log_info info = {};
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int main(int argc, char **argv)
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{
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struct sockaddr_in bss_peer= {0};
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osmo_init_logging(&info);
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log_set_use_color(osmo_stderr_target, 0);
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log_set_print_filename(osmo_stderr_target, 0);
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bssgp_nsi = gprs_ns_instantiate(gprs_ns_callback, NULL);
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bss_peer.sin_family = AF_INET;
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bss_peer.sin_port = htons(32000);
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bss_peer.sin_addr.s_addr = htonl(0x7f0000ff);
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gprs_ns_nsip_connect(bssgp_nsi, &bss_peer, BSS_NSEI, BSS_NSEI+1);
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printf("===== BSSGP test START\n");
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test_bssgp_suspend_resume();
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printf("===== BSSGP test END\n\n");
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exit(EXIT_SUCCESS);
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}
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