Jacob Erlbeck | cdebf74 | 2014-10-14 14:49:37 +0200 | [diff] [blame] | 1 | /* Test routines for the BSSGP implementation in libosmogb |
| 2 | * |
| 3 | * (C) 2014 by sysmocom s.f.m.c. GmbH |
| 4 | * Author: Jacob Erlbeck <jerlbeck@sysmocom.de> |
| 5 | * |
| 6 | * Skeleton based on bssgp_fc_test.c |
| 7 | * (C) 2012 by Harald Welte <laforge@gnumonks.org> |
| 8 | */ |
| 9 | |
| 10 | #undef _GNU_SOURCE |
| 11 | #define _GNU_SOURCE |
| 12 | |
| 13 | #include <osmocom/core/application.h> |
| 14 | #include <osmocom/core/utils.h> |
| 15 | #include <osmocom/core/logging.h> |
| 16 | #include <osmocom/core/talloc.h> |
| 17 | #include <osmocom/core/prim.h> |
| 18 | #include <osmocom/gprs/gprs_bssgp.h> |
| 19 | #include <osmocom/gprs/gprs_ns.h> |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <stdint.h> |
| 24 | #include <string.h> |
| 25 | #include <getopt.h> |
| 26 | #include <unistd.h> |
| 27 | #include <netinet/ip.h> |
Holger Hans Peter Freyther | e0a1a80 | 2014-10-25 12:19:56 +0200 | [diff] [blame] | 28 | #include <sys/socket.h> |
Jacob Erlbeck | cdebf74 | 2014-10-14 14:49:37 +0200 | [diff] [blame] | 29 | #include <dlfcn.h> |
| 30 | |
| 31 | #define BSS_NSEI 0x0b55 |
| 32 | |
| 33 | static struct osmo_prim_hdr last_oph = {0}; |
| 34 | |
| 35 | /* override */ |
| 36 | ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, |
| 37 | const struct sockaddr *dest_addr, socklen_t addrlen) |
| 38 | { |
| 39 | typedef ssize_t (*sendto_t)(int, const void *, size_t, int, |
| 40 | const struct sockaddr *, socklen_t); |
| 41 | static sendto_t real_sendto = NULL; |
| 42 | uint32_t dest_host = htonl(((struct sockaddr_in *)dest_addr)->sin_addr.s_addr); |
| 43 | |
| 44 | if (!real_sendto) |
| 45 | real_sendto = dlsym(RTLD_NEXT, "sendto"); |
| 46 | |
| 47 | fprintf(stderr, "MESSAGE to 0x%08x, msg length %d\n%s\n", |
| 48 | dest_host, len, osmo_hexdump(buf, len)); |
| 49 | |
| 50 | return len; |
| 51 | } |
| 52 | |
| 53 | /* override */ |
| 54 | int gprs_ns_callback(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, |
| 55 | struct msgb *msg, uint16_t bvci) |
| 56 | { |
| 57 | fprintf(stderr, "CALLBACK, event %d, msg length %d, bvci 0x%04x\n%s\n\n", |
| 58 | event, msgb_bssgp_len(msg), bvci, |
| 59 | osmo_hexdump(msgb_bssgph(msg), msgb_bssgp_len(msg))); |
| 60 | return 0; |
| 61 | } |
| 62 | |
| 63 | int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx) |
| 64 | { |
| 65 | printf("BSSGP primitive, SAP %d, prim = %d, op = %d, msg = %s\n", |
| 66 | oph->sap, oph->primitive, oph->operation, msgb_hexdump(oph->msg)); |
| 67 | |
| 68 | last_oph.sap = oph->sap; |
| 69 | last_oph.primitive = oph->primitive; |
| 70 | last_oph.operation = oph->operation; |
| 71 | last_oph.msg = NULL; |
| 72 | return -1; |
| 73 | } |
| 74 | |
| 75 | static void msgb_bssgp_send_and_free(struct msgb *msg) |
| 76 | { |
| 77 | msgb_nsei(msg) = BSS_NSEI; |
| 78 | |
| 79 | bssgp_rcvmsg(msg); |
| 80 | |
| 81 | msgb_free(msg); |
| 82 | } |
| 83 | |
| 84 | static void send_bssgp_supend(enum bssgp_pdu_type pdu_type, uint32_t tlli) |
| 85 | { |
| 86 | struct msgb *msg = bssgp_msgb_alloc(); |
| 87 | uint32_t tlli_be = htonl(tlli); |
| 88 | uint8_t rai[] = {0x0f, 0xf1, 0x80, 0x20, 0x37, 0x00}; |
| 89 | |
| 90 | msgb_v_put(msg, pdu_type); |
| 91 | msgb_tvlv_put(msg, BSSGP_IE_TLLI, sizeof(tlli_be), (uint8_t *)&tlli_be); |
| 92 | msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, sizeof(rai), &rai[0]); |
| 93 | |
| 94 | msgb_bssgp_send_and_free(msg); |
| 95 | } |
| 96 | |
| 97 | static void send_bssgp_resume(enum bssgp_pdu_type pdu_type, uint32_t tlli) |
| 98 | { |
| 99 | struct msgb *msg = bssgp_msgb_alloc(); |
| 100 | uint32_t tlli_be = htonl(tlli); |
| 101 | uint8_t rai[] = {0x0f, 0xf1, 0x80, 0x20, 0x37, 0x00}; |
| 102 | uint8_t suspend_ref = 1; |
| 103 | |
| 104 | msgb_v_put(msg, pdu_type); |
| 105 | msgb_tvlv_put(msg, BSSGP_IE_TLLI, sizeof(tlli_be), (uint8_t *)&tlli_be); |
| 106 | msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, sizeof(rai), &rai[0]); |
| 107 | msgb_tvlv_put(msg, BSSGP_IE_SUSPEND_REF_NR, 1, &suspend_ref); |
| 108 | |
| 109 | msgb_bssgp_send_and_free(msg); |
| 110 | } |
| 111 | |
| 112 | static void test_bssgp_suspend_resume(void) |
| 113 | { |
| 114 | const uint32_t tlli = 0xf0123456; |
| 115 | |
| 116 | printf("----- %s START\n", __func__); |
| 117 | memset(&last_oph, 0, sizeof(last_oph)); |
| 118 | |
| 119 | send_bssgp_supend(BSSGP_PDUT_SUSPEND, tlli); |
Jacob Erlbeck | b43baf2 | 2014-09-10 12:43:28 +0200 | [diff] [blame] | 120 | OSMO_ASSERT(last_oph.primitive == PRIM_BSSGP_GMM_SUSPEND); |
Jacob Erlbeck | cdebf74 | 2014-10-14 14:49:37 +0200 | [diff] [blame] | 121 | |
| 122 | send_bssgp_resume(BSSGP_PDUT_RESUME, tlli); |
Jacob Erlbeck | b43baf2 | 2014-09-10 12:43:28 +0200 | [diff] [blame] | 123 | OSMO_ASSERT(last_oph.primitive == PRIM_BSSGP_GMM_RESUME); |
Jacob Erlbeck | cdebf74 | 2014-10-14 14:49:37 +0200 | [diff] [blame] | 124 | |
| 125 | printf("----- %s END\n", __func__); |
| 126 | } |
| 127 | |
| 128 | static struct log_info info = {}; |
| 129 | |
| 130 | int main(int argc, char **argv) |
| 131 | { |
| 132 | struct sockaddr_in bss_peer= {0}; |
| 133 | |
| 134 | osmo_init_logging(&info); |
| 135 | log_set_use_color(osmo_stderr_target, 0); |
| 136 | log_set_print_filename(osmo_stderr_target, 0); |
| 137 | |
| 138 | bssgp_nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); |
| 139 | |
| 140 | bss_peer.sin_family = AF_INET; |
| 141 | bss_peer.sin_port = htons(32000); |
| 142 | bss_peer.sin_addr.s_addr = htonl(0x7f0000ff); |
| 143 | |
| 144 | gprs_ns_nsip_connect(bssgp_nsi, &bss_peer, BSS_NSEI, BSS_NSEI+1); |
| 145 | |
| 146 | |
| 147 | printf("===== BSSGP test START\n"); |
| 148 | test_bssgp_suspend_resume(); |
| 149 | printf("===== BSSGP test END\n\n"); |
| 150 | |
| 151 | exit(EXIT_SUCCESS); |
| 152 | } |