Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 1 | /* test routines for NS connection handling |
Harald Welte | e08da97 | 2017-11-13 01:00:26 +0900 | [diff] [blame] | 2 | * (C) 2013 by sysmocom - s.f.m.c. GmbH |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 3 | * Author: Jacob Erlbeck <jerlbeck@sysmocom.de> |
Harald Welte | e08da97 | 2017-11-13 01:00:26 +0900 | [diff] [blame] | 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #undef _GNU_SOURCE |
| 9 | #define _GNU_SOURCE |
| 10 | |
| 11 | #include <stdio.h> |
| 12 | #include <stdlib.h> |
Jacob Erlbeck | a52ba01 | 2013-10-24 01:33:21 +0200 | [diff] [blame] | 13 | #include <unistd.h> |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 14 | #include <stdint.h> |
| 15 | #include <string.h> |
| 16 | #include <getopt.h> |
| 17 | #include <dlfcn.h> |
| 18 | #include <sys/types.h> |
| 19 | #include <sys/socket.h> |
| 20 | |
| 21 | #include <osmocom/core/msgb.h> |
| 22 | #include <osmocom/core/application.h> |
| 23 | #include <osmocom/core/utils.h> |
| 24 | #include <osmocom/core/logging.h> |
| 25 | #include <osmocom/core/talloc.h> |
Jacob Erlbeck | 34fc470 | 2013-10-09 11:27:04 +0200 | [diff] [blame] | 26 | #include <osmocom/core/signal.h> |
Jacob Erlbeck | 5e6d679 | 2013-10-14 22:06:48 +0200 | [diff] [blame] | 27 | #include <osmocom/core/rate_ctr.h> |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 28 | #include <osmocom/gprs/gprs_msgb.h> |
| 29 | #include <osmocom/gprs/gprs_ns.h> |
| 30 | #include <osmocom/gprs/gprs_bssgp.h> |
| 31 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 32 | #define REMOTE_BSS_ADDR 0x01020304 |
| 33 | #define REMOTE_SGSN_ADDR 0x05060708 |
| 34 | |
| 35 | #define SGSN_NSEI 0x0100 |
| 36 | |
Jacob Erlbeck | 2381fde | 2014-10-07 13:59:30 +0200 | [diff] [blame] | 37 | static int sent_pdu_type = 0; |
| 38 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 39 | static int gprs_process_message(struct gprs_ns_inst *nsi, const char *text, |
| 40 | struct sockaddr_in *peer, const unsigned char* data, |
| 41 | size_t data_len); |
| 42 | |
| 43 | static void send_ns_reset(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, |
| 44 | enum ns_cause cause, uint16_t nsvci, uint16_t nsei) |
| 45 | { |
| 46 | /* GPRS Network Service, PDU type: NS_RESET, |
| 47 | */ |
| 48 | unsigned char msg[12] = { |
| 49 | 0x02, 0x00, 0x81, 0x01, 0x01, 0x82, 0x11, 0x22, |
| 50 | 0x04, 0x82, 0x11, 0x22 |
| 51 | }; |
| 52 | |
| 53 | msg[3] = cause; |
| 54 | msg[6] = nsvci / 256; |
| 55 | msg[7] = nsvci % 256; |
| 56 | msg[10] = nsei / 256; |
| 57 | msg[11] = nsei % 256; |
| 58 | |
| 59 | gprs_process_message(nsi, "RESET", src_addr, msg, sizeof(msg)); |
| 60 | } |
| 61 | |
| 62 | static void send_ns_reset_ack(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, |
| 63 | uint16_t nsvci, uint16_t nsei) |
| 64 | { |
| 65 | /* GPRS Network Service, PDU type: NS_RESET_ACK, |
| 66 | */ |
| 67 | unsigned char msg[9] = { |
| 68 | 0x03, 0x01, 0x82, 0x11, 0x22, |
| 69 | 0x04, 0x82, 0x11, 0x22 |
| 70 | }; |
| 71 | |
| 72 | msg[3] = nsvci / 256; |
| 73 | msg[4] = nsvci % 256; |
| 74 | msg[7] = nsei / 256; |
| 75 | msg[8] = nsei % 256; |
| 76 | |
| 77 | gprs_process_message(nsi, "RESET_ACK", src_addr, msg, sizeof(msg)); |
| 78 | } |
| 79 | |
| 80 | static void send_ns_alive(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) |
| 81 | { |
| 82 | /* GPRS Network Service, PDU type: NS_ALIVE */ |
| 83 | unsigned char msg[1] = { |
| 84 | 0x0a |
| 85 | }; |
| 86 | |
| 87 | gprs_process_message(nsi, "ALIVE", src_addr, msg, sizeof(msg)); |
| 88 | } |
| 89 | |
| 90 | static void send_ns_alive_ack(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) |
| 91 | { |
| 92 | /* GPRS Network Service, PDU type: NS_ALIVE_ACK */ |
| 93 | unsigned char msg[1] = { |
| 94 | 0x0b |
| 95 | }; |
| 96 | |
| 97 | gprs_process_message(nsi, "ALIVE_ACK", src_addr, msg, sizeof(msg)); |
| 98 | } |
| 99 | |
| 100 | static void send_ns_unblock(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) |
| 101 | { |
| 102 | /* GPRS Network Service, PDU type: NS_UNBLOCK */ |
| 103 | unsigned char msg[1] = { |
| 104 | 0x06 |
| 105 | }; |
| 106 | |
| 107 | gprs_process_message(nsi, "UNBLOCK", src_addr, msg, sizeof(msg)); |
| 108 | } |
| 109 | |
| 110 | static void send_ns_unblock_ack(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) |
| 111 | { |
| 112 | /* GPRS Network Service, PDU type: NS_UNBLOCK_ACK */ |
| 113 | unsigned char msg[1] = { |
| 114 | 0x07 |
| 115 | }; |
| 116 | |
| 117 | gprs_process_message(nsi, "UNBLOCK_ACK", src_addr, msg, sizeof(msg)); |
| 118 | } |
| 119 | |
| 120 | static void send_ns_unitdata(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, |
| 121 | uint16_t nsbvci, |
| 122 | const unsigned char *bssgp_msg, size_t bssgp_msg_size) |
| 123 | { |
| 124 | /* GPRS Network Service, PDU type: NS_UNITDATA */ |
| 125 | unsigned char msg[4096] = { |
| 126 | 0x00, 0x00, 0x00, 0x00 |
| 127 | }; |
| 128 | |
| 129 | OSMO_ASSERT(bssgp_msg_size <= sizeof(msg) - 4); |
| 130 | |
| 131 | msg[2] = nsbvci / 256; |
| 132 | msg[3] = nsbvci % 256; |
| 133 | memcpy(msg + 4, bssgp_msg, bssgp_msg_size); |
| 134 | |
| 135 | gprs_process_message(nsi, "UNITDATA", src_addr, msg, bssgp_msg_size + 4); |
| 136 | } |
| 137 | |
| 138 | static void send_bssgp_reset(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, |
| 139 | uint16_t bvci) |
| 140 | { |
| 141 | /* GPRS Network Service, PDU type: NS_UNITDATA, BVCI 0 |
| 142 | * BSSGP RESET */ |
| 143 | unsigned char msg[22] = { |
| 144 | 0x22, 0x04, 0x82, 0x4a, |
| 145 | 0x2e, 0x07, 0x81, 0x08, 0x08, 0x88, 0x10, 0x20, |
| 146 | 0x30, 0x40, 0x50, 0x60, 0x10, 0x00 |
| 147 | }; |
| 148 | |
| 149 | msg[3] = bvci / 256; |
| 150 | msg[4] = bvci % 256; |
| 151 | |
| 152 | send_ns_unitdata(nsi, src_addr, 0, msg, sizeof(msg)); |
| 153 | } |
| 154 | |
| 155 | static void setup_ns(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, |
| 156 | uint16_t nsvci, uint16_t nsei) |
| 157 | { |
| 158 | printf("Setup NS-VC: remote 0x%08x:%d, " |
| 159 | "NSVCI 0x%04x(%d), NSEI 0x%04x(%d)\n\n", |
| 160 | ntohl(src_addr->sin_addr.s_addr), ntohs(src_addr->sin_port), |
| 161 | nsvci, nsvci, nsei, nsei); |
| 162 | |
| 163 | send_ns_reset(nsi, src_addr, NS_CAUSE_OM_INTERVENTION, nsvci, nsei); |
| 164 | send_ns_alive(nsi, src_addr); |
| 165 | send_ns_unblock(nsi, src_addr); |
| 166 | send_ns_alive_ack(nsi, src_addr); |
| 167 | } |
| 168 | |
| 169 | static void setup_bssgp(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, |
| 170 | uint16_t bvci) __attribute__((__unused__)); |
| 171 | |
| 172 | static void setup_bssgp(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, |
| 173 | uint16_t bvci) |
| 174 | { |
| 175 | printf("Setup BSSGP: remote 0x%08x:%d, " |
| 176 | "BVCI 0x%04x(%d)\n\n", |
| 177 | ntohl(src_addr->sin_addr.s_addr), ntohs(src_addr->sin_port), |
| 178 | bvci, bvci); |
| 179 | |
| 180 | send_bssgp_reset(nsi, src_addr, bvci); |
| 181 | } |
| 182 | |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 183 | /* GPRS Network Service, PDU type: NS_STATUS, |
| 184 | * Cause: PDU not compatible with the protocol state |
| 185 | * PDU: NS_ALIVE |
| 186 | */ |
| 187 | static const unsigned char gprs_ns_status_invalid_alive[7] = { |
| 188 | 0x08, 0x00, 0x81, 0x0a, 0x02, 0x81, 0x0a |
| 189 | }; |
| 190 | |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 191 | /* GPRS Network Service, PDU type: NS_UNITDATA, BVCI 0 */ |
| 192 | static const unsigned char gprs_bssgp_reset[22] = { |
| 193 | 0x00, 0x00, 0x00, 0x00, 0x22, 0x04, 0x82, 0x4a, |
| 194 | 0x2e, 0x07, 0x81, 0x08, 0x08, 0x88, 0x10, 0x20, |
| 195 | 0x30, 0x40, 0x50, 0x60, 0x10, 0x00 |
| 196 | }; |
| 197 | |
| 198 | int gprs_ns_rcvmsg(struct gprs_ns_inst *nsi, struct msgb *msg, |
| 199 | struct sockaddr_in *saddr, enum gprs_ns_ll ll); |
| 200 | |
| 201 | /* override */ |
| 202 | int gprs_ns_callback(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, |
| 203 | struct msgb *msg, uint16_t bvci) |
| 204 | { |
Holger Hans Peter Freyther | fdb4667 | 2015-11-09 16:32:43 +0000 | [diff] [blame] | 205 | printf("CALLBACK, event %d, msg length %td, bvci 0x%04x\n%s\n\n", |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 206 | event, msgb_bssgp_len(msg), bvci, |
| 207 | osmo_hexdump(msgb_bssgph(msg), msgb_bssgp_len(msg))); |
| 208 | return 0; |
| 209 | } |
| 210 | |
| 211 | /* override */ |
| 212 | ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, |
| 213 | const struct sockaddr *dest_addr, socklen_t addrlen) |
| 214 | { |
| 215 | typedef ssize_t (*sendto_t)(int, const void *, size_t, int, |
| 216 | const struct sockaddr *, socklen_t); |
| 217 | static sendto_t real_sendto = NULL; |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 218 | uint32_t dest_host = htonl(((struct sockaddr_in *)dest_addr)->sin_addr.s_addr); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 219 | |
| 220 | if (!real_sendto) |
| 221 | real_sendto = dlsym(RTLD_NEXT, "sendto"); |
| 222 | |
Jacob Erlbeck | 2381fde | 2014-10-07 13:59:30 +0200 | [diff] [blame] | 223 | sent_pdu_type = len > 0 ? ((uint8_t *)buf)[0] : -1; |
| 224 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 225 | if (dest_host == REMOTE_BSS_ADDR) |
Holger Hans Peter Freyther | fdb4667 | 2015-11-09 16:32:43 +0000 | [diff] [blame] | 226 | printf("MESSAGE to BSS, msg length %zu\n%s\n\n", len, osmo_hexdump(buf, len)); |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 227 | else if (dest_host == REMOTE_SGSN_ADDR) |
Holger Hans Peter Freyther | fdb4667 | 2015-11-09 16:32:43 +0000 | [diff] [blame] | 228 | printf("MESSAGE to SGSN, msg length %zu\n%s\n\n", len, osmo_hexdump(buf, len)); |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 229 | else |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 230 | return real_sendto(sockfd, buf, len, flags, dest_addr, addrlen); |
| 231 | |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 232 | return len; |
| 233 | } |
| 234 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 235 | /* override */ |
| 236 | int gprs_ns_sendmsg(struct gprs_ns_inst *nsi, struct msgb *msg) |
| 237 | { |
| 238 | typedef int (*gprs_ns_sendmsg_t)(struct gprs_ns_inst *nsi, struct msgb *msg); |
| 239 | static gprs_ns_sendmsg_t real_gprs_ns_sendmsg = NULL; |
| 240 | uint16_t bvci = msgb_bvci(msg); |
| 241 | uint16_t nsei = msgb_nsei(msg); |
| 242 | |
| 243 | unsigned char *buf = msg->data; |
| 244 | size_t len = msg->len; |
| 245 | |
| 246 | if (!real_gprs_ns_sendmsg) |
| 247 | real_gprs_ns_sendmsg = dlsym(RTLD_NEXT, "gprs_ns_sendmsg"); |
| 248 | |
| 249 | if (nsei == SGSN_NSEI) |
Holger Hans Peter Freyther | fdb4667 | 2015-11-09 16:32:43 +0000 | [diff] [blame] | 250 | printf("NS UNITDATA MESSAGE to SGSN, BVCI 0x%04x, msg length %zu\n%s\n\n", |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 251 | bvci, len, osmo_hexdump(buf, len)); |
| 252 | else |
Holger Hans Peter Freyther | fdb4667 | 2015-11-09 16:32:43 +0000 | [diff] [blame] | 253 | printf("NS UNITDATA MESSAGE to BSS, BVCI 0x%04x, msg length %zu\n%s\n\n", |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 254 | bvci, len, osmo_hexdump(buf, len)); |
| 255 | |
| 256 | return real_gprs_ns_sendmsg(nsi, msg); |
| 257 | } |
| 258 | |
Jacob Erlbeck | 5e6d679 | 2013-10-14 22:06:48 +0200 | [diff] [blame] | 259 | static void dump_rate_ctr_group(FILE *stream, const char *prefix, |
| 260 | struct rate_ctr_group *ctrg) |
| 261 | { |
| 262 | unsigned int i; |
| 263 | |
| 264 | for (i = 0; i < ctrg->desc->num_ctr; i++) { |
| 265 | struct rate_ctr *ctr = &ctrg->ctr[i]; |
Harald Welte | ae510dc | 2017-10-03 17:46:14 +0800 | [diff] [blame] | 266 | if (ctr->current && !strchr(ctrg->desc->ctr_desc[i].name, ':')) |
Jacob Erlbeck | 5e6d679 | 2013-10-14 22:06:48 +0200 | [diff] [blame] | 267 | fprintf(stream, " %s%s: %llu%s", |
| 268 | prefix, ctrg->desc->ctr_desc[i].description, |
| 269 | (long long)ctr->current, |
| 270 | "\n"); |
| 271 | }; |
| 272 | } |
| 273 | |
Jacob Erlbeck | 34fc470 | 2013-10-09 11:27:04 +0200 | [diff] [blame] | 274 | /* Signal handler for signals from NS layer */ |
| 275 | static int test_signal(unsigned int subsys, unsigned int signal, |
| 276 | void *handler_data, void *signal_data) |
| 277 | { |
| 278 | struct ns_signal_data *nssd = signal_data; |
| 279 | |
| 280 | if (subsys != SS_L_NS) |
| 281 | return 0; |
| 282 | |
| 283 | switch (signal) { |
| 284 | case S_NS_RESET: |
| 285 | printf("==> got signal NS_RESET, NS-VC 0x%04x/%s\n", |
| 286 | nssd->nsvc->nsvci, |
Jacob Erlbeck | 96550e0 | 2013-10-14 22:06:47 +0200 | [diff] [blame] | 287 | gprs_ns_ll_str(nssd->nsvc)); |
Jacob Erlbeck | 34fc470 | 2013-10-09 11:27:04 +0200 | [diff] [blame] | 288 | break; |
| 289 | |
| 290 | case S_NS_ALIVE_EXP: |
| 291 | printf("==> got signal NS_ALIVE_EXP, NS-VC 0x%04x/%s\n", |
| 292 | nssd->nsvc->nsvci, |
Jacob Erlbeck | 96550e0 | 2013-10-14 22:06:47 +0200 | [diff] [blame] | 293 | gprs_ns_ll_str(nssd->nsvc)); |
Jacob Erlbeck | 34fc470 | 2013-10-09 11:27:04 +0200 | [diff] [blame] | 294 | break; |
| 295 | |
| 296 | case S_NS_BLOCK: |
| 297 | printf("==> got signal NS_BLOCK, NS-VC 0x%04x/%s\n", |
| 298 | nssd->nsvc->nsvci, |
Jacob Erlbeck | 96550e0 | 2013-10-14 22:06:47 +0200 | [diff] [blame] | 299 | gprs_ns_ll_str(nssd->nsvc)); |
Jacob Erlbeck | 34fc470 | 2013-10-09 11:27:04 +0200 | [diff] [blame] | 300 | break; |
| 301 | |
| 302 | case S_NS_UNBLOCK: |
| 303 | printf("==> got signal NS_UNBLOCK, NS-VC 0x%04x/%s\n", |
| 304 | nssd->nsvc->nsvci, |
Jacob Erlbeck | 96550e0 | 2013-10-14 22:06:47 +0200 | [diff] [blame] | 305 | gprs_ns_ll_str(nssd->nsvc)); |
Jacob Erlbeck | 34fc470 | 2013-10-09 11:27:04 +0200 | [diff] [blame] | 306 | break; |
| 307 | |
Jacob Erlbeck | 5e6d679 | 2013-10-14 22:06:48 +0200 | [diff] [blame] | 308 | case S_NS_REPLACED: |
| 309 | printf("==> got signal NS_REPLACED: 0x%04x/%s", |
| 310 | nssd->nsvc->nsvci, |
| 311 | gprs_ns_ll_str(nssd->nsvc)); |
| 312 | printf(" -> 0x%04x/%s\n", |
| 313 | nssd->old_nsvc->nsvci, |
| 314 | gprs_ns_ll_str(nssd->old_nsvc)); |
| 315 | break; |
| 316 | |
Jacob Erlbeck | 5405a10 | 2013-10-24 01:33:23 +0200 | [diff] [blame] | 317 | case S_NS_MISMATCH: |
| 318 | printf("==> got signal NS_MISMATCH: 0x%04x/%s pdu=%d, ie=%d\n", |
| 319 | nssd->nsvc->nsvci, gprs_ns_ll_str(nssd->nsvc), |
| 320 | nssd->pdu_type, nssd->ie_type); |
| 321 | break; |
| 322 | |
Jacob Erlbeck | 34fc470 | 2013-10-09 11:27:04 +0200 | [diff] [blame] | 323 | default: |
| 324 | printf("==> got signal %d, NS-VC 0x%04x/%s\n", signal, |
| 325 | nssd->nsvc->nsvci, |
Jacob Erlbeck | 96550e0 | 2013-10-14 22:06:47 +0200 | [diff] [blame] | 326 | gprs_ns_ll_str(nssd->nsvc)); |
Jacob Erlbeck | 34fc470 | 2013-10-09 11:27:04 +0200 | [diff] [blame] | 327 | break; |
| 328 | } |
| 329 | |
| 330 | return 0; |
| 331 | } |
| 332 | |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 333 | static int gprs_process_message(struct gprs_ns_inst *nsi, const char *text, struct sockaddr_in *peer, const unsigned char* data, size_t data_len) |
| 334 | { |
| 335 | struct msgb *msg; |
| 336 | int ret; |
| 337 | if (data_len > NS_ALLOC_SIZE - NS_ALLOC_HEADROOM) { |
Holger Hans Peter Freyther | fdb4667 | 2015-11-09 16:32:43 +0000 | [diff] [blame] | 338 | fprintf(stderr, "message too long: %zu\n", data_len); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 339 | return -1; |
| 340 | } |
| 341 | |
| 342 | msg = gprs_ns_msgb_alloc(); |
| 343 | memmove(msg->data, data, data_len); |
| 344 | msg->l2h = msg->data; |
| 345 | msgb_put(msg, data_len); |
| 346 | |
| 347 | printf("PROCESSING %s from 0x%08x:%d\n%s\n\n", |
| 348 | text, ntohl(peer->sin_addr.s_addr), ntohs(peer->sin_port), |
| 349 | osmo_hexdump(data, data_len)); |
| 350 | |
| 351 | ret = gprs_ns_rcvmsg(nsi, msg, peer, GPRS_NS_LL_UDP); |
| 352 | |
| 353 | printf("result (%s) = %d\n\n", text, ret); |
| 354 | |
| 355 | msgb_free(msg); |
| 356 | |
| 357 | return ret; |
| 358 | } |
| 359 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 360 | static int gprs_send_message(struct gprs_ns_inst *nsi, const char *text, |
| 361 | uint16_t nsei, uint16_t bvci, |
| 362 | const unsigned char* data, size_t data_len) |
| 363 | { |
| 364 | struct msgb *msg; |
| 365 | int ret; |
| 366 | if (data_len > NS_ALLOC_SIZE - NS_ALLOC_HEADROOM) { |
Holger Hans Peter Freyther | fdb4667 | 2015-11-09 16:32:43 +0000 | [diff] [blame] | 367 | fprintf(stderr, "message too long: %zu\n", data_len); |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 368 | return -1; |
| 369 | } |
| 370 | |
| 371 | msg = gprs_ns_msgb_alloc(); |
| 372 | memmove(msg->data, data, data_len); |
| 373 | msg->l2h = msg->data; |
| 374 | msgb_put(msg, data_len); |
| 375 | |
| 376 | msgb_nsei(msg) = nsei; |
| 377 | msgb_bvci(msg) = bvci; |
| 378 | |
| 379 | printf("SENDING %s to NSEI 0x%04x, BVCI 0x%04x\n", text, nsei, bvci); |
| 380 | |
| 381 | ret = gprs_ns_sendmsg(nsi, msg); |
| 382 | |
| 383 | printf("result (%s) = %d\n\n", text, ret); |
| 384 | |
| 385 | return ret; |
| 386 | } |
| 387 | |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 388 | static void gprs_dump_nsi(struct gprs_ns_inst *nsi) |
| 389 | { |
| 390 | struct gprs_nsvc *nsvc; |
| 391 | |
| 392 | printf("Current NS-VCIs:\n"); |
| 393 | llist_for_each_entry(nsvc, &nsi->gprs_nsvcs, list) { |
| 394 | struct sockaddr_in *peer = &(nsvc->ip.bts_addr); |
Max | 4ce24c4 | 2017-10-23 15:09:23 +0200 | [diff] [blame] | 395 | printf(" VCI 0x%04x, NSEI 0x%04x, peer 0x%08x:%d, %s, %s, %s%s\n", |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 396 | nsvc->nsvci, nsvc->nsei, |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 397 | ntohl(peer->sin_addr.s_addr), ntohs(peer->sin_port), |
Max | 4ce24c4 | 2017-10-23 15:09:23 +0200 | [diff] [blame] | 398 | NS_DESC_A(nsvc->state), |
| 399 | NS_DESC_B(nsvc->state), |
| 400 | NS_DESC_R(nsvc->state), |
Jacob Erlbeck | 54b8b2d | 2013-10-24 01:33:25 +0200 | [diff] [blame] | 401 | nsvc->nsvci_is_valid ? "" : ", invalid VCI" |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 402 | ); |
Jacob Erlbeck | 5e6d679 | 2013-10-14 22:06:48 +0200 | [diff] [blame] | 403 | dump_rate_ctr_group(stdout, " ", nsvc->ctrg); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 404 | } |
| 405 | printf("\n"); |
| 406 | } |
| 407 | |
Jacob Erlbeck | f1bcbb0 | 2014-10-07 14:03:44 +0200 | [diff] [blame] | 408 | static int expire_nsvc_timer(struct gprs_nsvc *nsvc) |
| 409 | { |
| 410 | int rc; |
| 411 | |
| 412 | if (!osmo_timer_pending(&nsvc->timer)) |
| 413 | return -1; |
| 414 | |
| 415 | rc = nsvc->timer_mode; |
| 416 | osmo_timer_del(&nsvc->timer); |
| 417 | |
| 418 | nsvc->timer.cb(nsvc->timer.data); |
| 419 | |
| 420 | return rc; |
| 421 | } |
| 422 | |
Jacob Erlbeck | a52ba01 | 2013-10-24 01:33:21 +0200 | [diff] [blame] | 423 | static void test_nsvc() |
| 424 | { |
| 425 | struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); |
| 426 | struct sockaddr_in peer[1] = {{0},}; |
| 427 | struct gprs_nsvc *nsvc; |
| 428 | int i; |
| 429 | |
| 430 | peer[0].sin_family = AF_INET; |
| 431 | peer[0].sin_port = htons(1111); |
| 432 | peer[0].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
| 433 | |
| 434 | for (i=0; i<4; ++i) { |
| 435 | printf("--- Create via RESET (round %d) ---\n\n", i); |
| 436 | |
| 437 | send_ns_reset(nsi, &peer[0], NS_CAUSE_OM_INTERVENTION, |
| 438 | 0x1001, 0x1000); |
| 439 | gprs_dump_nsi(nsi); |
| 440 | |
| 441 | printf("--- Delete nsvc object (round %d)---\n\n", i); |
| 442 | |
| 443 | nsvc = gprs_nsvc_by_nsvci(nsi, 0x1001); |
| 444 | OSMO_ASSERT(nsvc != NULL); |
| 445 | gprs_nsvc_delete(nsvc); |
| 446 | |
| 447 | gprs_dump_nsi(nsi); |
| 448 | } |
| 449 | |
| 450 | gprs_ns_destroy(nsi); |
| 451 | nsi = NULL; |
| 452 | |
| 453 | printf("--- Process timers ---\n\n"); |
| 454 | /* wait for rate_ctr_timer expiry */ |
| 455 | usleep(1100000); |
| 456 | /* ensure termination */ |
| 457 | alarm(2); |
| 458 | osmo_timers_update(); |
| 459 | alarm(0); |
| 460 | } |
| 461 | |
Jacob Erlbeck | e7c4271 | 2013-10-28 13:29:10 +0100 | [diff] [blame] | 462 | static void test_ignored_messages() |
| 463 | { |
| 464 | struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); |
| 465 | struct sockaddr_in peer[1] = {{0},}; |
| 466 | |
| 467 | peer[0].sin_family = AF_INET; |
| 468 | peer[0].sin_port = htons(1111); |
| 469 | peer[0].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
| 470 | |
| 471 | printf("--- Send unexpected NS STATUS (should not be answered)---\n\n"); |
| 472 | /* Do not respond, see 3GPP TS 08.16, 7.5.1 */ |
| 473 | gprs_process_message(nsi, "STATUS", &peer[0], |
| 474 | gprs_ns_status_invalid_alive, |
| 475 | sizeof(gprs_ns_status_invalid_alive)); |
| 476 | |
| 477 | printf("--- Send unexpected NS ALIVE ACK (should not be answered)---\n\n"); |
| 478 | /* Ignore this, see 3GPP TS 08.16, 7.4.1 */ |
| 479 | send_ns_alive_ack(nsi, &peer[0]); |
| 480 | |
| 481 | printf("--- Send unexpected NS RESET ACK (should not be answered)---\n\n"); |
| 482 | /* Ignore this, see 3GPP TS 08.16, 7.3.1 */ |
| 483 | send_ns_reset_ack(nsi, &peer[0], 0xe001, 0xe000); |
| 484 | |
| 485 | gprs_ns_destroy(nsi); |
| 486 | nsi = NULL; |
| 487 | } |
| 488 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 489 | static void test_bss_port_changes() |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 490 | { |
| 491 | struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); |
| 492 | struct sockaddr_in peer[4] = {{0},}; |
| 493 | |
| 494 | peer[0].sin_family = AF_INET; |
| 495 | peer[0].sin_port = htons(1111); |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 496 | peer[0].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 497 | peer[1].sin_family = AF_INET; |
| 498 | peer[1].sin_port = htons(2222); |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 499 | peer[1].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 500 | peer[2].sin_family = AF_INET; |
| 501 | peer[2].sin_port = htons(3333); |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 502 | peer[2].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 503 | peer[3].sin_family = AF_INET; |
| 504 | peer[3].sin_port = htons(4444); |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 505 | peer[3].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 506 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 507 | printf("--- Setup, send BSSGP RESET ---\n\n"); |
| 508 | |
| 509 | setup_ns(nsi, &peer[0], 0x1122, 0x1122); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 510 | gprs_dump_nsi(nsi); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 511 | gprs_process_message(nsi, "BSSGP RESET", &peer[0], |
| 512 | gprs_bssgp_reset, sizeof(gprs_bssgp_reset)); |
| 513 | |
| 514 | printf("--- Peer port changes, RESET, message remains unchanged ---\n\n"); |
| 515 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 516 | send_ns_reset(nsi, &peer[1], NS_CAUSE_OM_INTERVENTION, 0x1122, 0x1122); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 517 | gprs_dump_nsi(nsi); |
| 518 | |
| 519 | printf("--- Peer port changes, RESET, VCI changes ---\n\n"); |
| 520 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 521 | send_ns_reset(nsi, &peer[2], NS_CAUSE_OM_INTERVENTION, 0x3344, 0x1122); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 522 | gprs_dump_nsi(nsi); |
| 523 | |
| 524 | printf("--- Peer port changes, RESET, NSEI changes ---\n\n"); |
| 525 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 526 | send_ns_reset(nsi, &peer[3], NS_CAUSE_OM_INTERVENTION, 0x1122, 0x3344); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 527 | gprs_dump_nsi(nsi); |
| 528 | |
| 529 | printf("--- Peer port 3333, RESET, VCI is changed back ---\n\n"); |
| 530 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 531 | send_ns_reset(nsi, &peer[2], NS_CAUSE_OM_INTERVENTION, 0x1122, 0x1122); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 532 | gprs_dump_nsi(nsi); |
| 533 | |
| 534 | printf("--- Peer port 4444, RESET, NSEI is changed back ---\n\n"); |
| 535 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 536 | send_ns_reset(nsi, &peer[3], NS_CAUSE_OM_INTERVENTION, 0x1122, 0x1122); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 537 | gprs_dump_nsi(nsi); |
| 538 | |
| 539 | gprs_ns_destroy(nsi); |
| 540 | nsi = NULL; |
| 541 | } |
| 542 | |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 543 | static void test_bss_reset_ack() |
| 544 | { |
| 545 | struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); |
| 546 | struct sockaddr_in peer[4] = {{0},}; |
| 547 | struct gprs_nsvc *nsvc; |
| 548 | struct sockaddr_in *nse[4]; |
Holger Hans Peter Freyther | 84bcce6 | 2014-10-09 16:07:37 +0200 | [diff] [blame] | 549 | int rc; |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 550 | |
| 551 | peer[0].sin_family = AF_INET; |
| 552 | peer[0].sin_port = htons(1111); |
| 553 | peer[0].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
| 554 | peer[1].sin_family = AF_INET; |
| 555 | peer[1].sin_port = htons(2222); |
| 556 | peer[1].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
| 557 | peer[2].sin_family = AF_INET; |
| 558 | peer[2].sin_port = htons(3333); |
| 559 | peer[2].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
| 560 | peer[3].sin_family = AF_INET; |
| 561 | peer[3].sin_port = htons(4444); |
| 562 | peer[3].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); |
| 563 | |
| 564 | nse[0] = &peer[0]; |
| 565 | nse[1] = &peer[1]; |
| 566 | |
| 567 | printf("--- Setup VC 1 BSS -> SGSN ---\n\n"); |
| 568 | |
| 569 | setup_ns(nsi, nse[0], 0x1001, 0x1000); |
| 570 | gprs_dump_nsi(nsi); |
| 571 | |
| 572 | printf("--- Setup VC 2 BSS -> SGSN ---\n\n"); |
| 573 | |
| 574 | setup_ns(nsi, nse[1], 0x2001, 0x2000); |
| 575 | gprs_dump_nsi(nsi); |
| 576 | |
| 577 | printf("--- Setup VC 1 SGSN -> BSS ---\n\n"); |
| 578 | |
| 579 | nsvc = gprs_nsvc_by_nsvci(nsi, 0x1001); |
Jacob Erlbeck | f357c87 | 2014-10-07 13:52:07 +0200 | [diff] [blame] | 580 | gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 581 | send_ns_reset_ack(nsi, nse[0], 0x1001, 0x1000); |
| 582 | gprs_dump_nsi(nsi); |
| 583 | |
| 584 | printf("--- Exchange NSEI 1 + 2 links ---\n\n"); |
| 585 | |
| 586 | nse[1] = &peer[0]; |
| 587 | nse[0] = &peer[1]; |
| 588 | |
| 589 | printf("--- Setup VC 2 SGSN -> BSS (hits NSEI 1) ---\n\n"); |
| 590 | |
| 591 | nsvc = gprs_nsvc_by_nsvci(nsi, 0x2001); |
Jacob Erlbeck | f357c87 | 2014-10-07 13:52:07 +0200 | [diff] [blame] | 592 | gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 593 | send_ns_reset_ack(nsi, nse[0], 0x1001, 0x1000); |
| 594 | gprs_dump_nsi(nsi); |
| 595 | |
| 596 | printf("--- Setup VC 2 SGSN -> BSS (hits NSEI 2) ---\n\n"); |
| 597 | |
| 598 | nsvc = gprs_nsvc_by_nsvci(nsi, 0x2001); |
Holger Hans Peter Freyther | 84bcce6 | 2014-10-09 16:07:37 +0200 | [diff] [blame] | 599 | rc = gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); |
| 600 | OSMO_ASSERT(rc < 0); |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 601 | |
| 602 | printf("--- Setup VC 1 SGSN -> BSS (hits NSEI 1) ---\n\n"); |
| 603 | |
| 604 | nsvc = gprs_nsvc_by_nsvci(nsi, 0x1001); |
Jacob Erlbeck | f357c87 | 2014-10-07 13:52:07 +0200 | [diff] [blame] | 605 | gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 606 | send_ns_reset_ack(nsi, nse[0], 0x1001, 0x1000); |
| 607 | gprs_dump_nsi(nsi); |
| 608 | |
| 609 | printf("--- Setup VC 2 BSS -> SGSN ---\n\n"); |
| 610 | |
| 611 | setup_ns(nsi, nse[1], 0x2001, 0x2000); |
| 612 | gprs_dump_nsi(nsi); |
| 613 | |
| 614 | /* Test 3GPP TS 08.16, 7.3.1, 3rd paragraph. */ |
| 615 | /* This is not rejected because the NSEI has been |
| 616 | * assigned dynamically and not by configuration. |
| 617 | * This is not strictly spec conformant. */ |
| 618 | |
| 619 | printf("--- RESET with invalid NSEI, BSS -> SGSN ---\n\n"); |
| 620 | |
| 621 | send_ns_reset(nsi, nse[0], NS_CAUSE_OM_INTERVENTION, |
| 622 | 0x1001, 0xf000); |
| 623 | gprs_dump_nsi(nsi); |
| 624 | |
| 625 | /* Test 3GPP TS 08.16, 7.3.1, 2nd paragraph. */ |
| 626 | /* This is not rejected because the NSEI has been |
| 627 | * assigned dynamically and not by configuration. |
| 628 | * This is not strictly spec conformant. */ |
| 629 | |
| 630 | printf("--- RESET with invalid NSVCI, BSS -> SGSN ---\n\n"); |
| 631 | |
| 632 | send_ns_reset(nsi, nse[0], NS_CAUSE_OM_INTERVENTION, |
| 633 | 0xf001, 0x1000); |
| 634 | gprs_dump_nsi(nsi); |
| 635 | |
| 636 | printf("--- RESET with old NSEI, NSVCI, BSS -> SGSN ---\n\n"); |
| 637 | |
| 638 | send_ns_reset(nsi, nse[0], NS_CAUSE_OM_INTERVENTION, |
| 639 | 0x1001, 0x1000); |
| 640 | gprs_dump_nsi(nsi); |
| 641 | |
| 642 | /* Test 3GPP TS 08.16, 7.3.1, 5th paragraph. */ |
| 643 | |
| 644 | printf("--- Unexpected RESET_ACK VC 1, BSS -> SGSN ---\n\n"); |
| 645 | |
| 646 | send_ns_reset_ack(nsi, nse[0], 0x1001, 0x1000); |
| 647 | gprs_dump_nsi(nsi); |
| 648 | |
| 649 | /* Test 3GPP TS 08.16, 7.3.1, 4th paragraph. */ |
| 650 | |
| 651 | printf("--- RESET_ACK with invalid NSEI, BSS -> SGSN ---\n\n"); |
| 652 | |
| 653 | nsvc = gprs_nsvc_by_nsvci(nsi, 0x1001); |
Jacob Erlbeck | f357c87 | 2014-10-07 13:52:07 +0200 | [diff] [blame] | 654 | gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 655 | send_ns_reset_ack(nsi, nse[0], 0x1001, 0xf000); |
| 656 | gprs_dump_nsi(nsi); |
| 657 | |
| 658 | /* Test 3GPP TS 08.16, 7.3.1, 4th paragraph. */ |
| 659 | |
| 660 | printf("--- RESET_ACK with invalid NSVCI, BSS -> SGSN ---\n\n"); |
| 661 | |
| 662 | nsvc = gprs_nsvc_by_nsvci(nsi, 0x1001); |
Jacob Erlbeck | f357c87 | 2014-10-07 13:52:07 +0200 | [diff] [blame] | 663 | gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 664 | send_ns_reset_ack(nsi, nse[0], 0xf001, 0x1000); |
| 665 | gprs_dump_nsi(nsi); |
| 666 | |
Jacob Erlbeck | cc6ac4c | 2015-12-17 13:22:36 +0100 | [diff] [blame] | 667 | /* Test crossing RESET and UNBLOCK_ACK */ |
| 668 | |
| 669 | printf("--- RESET (BSS -> SGSN) crossing an UNBLOCK_ACK (SGSN -> BSS) ---\n\n"); |
| 670 | |
| 671 | setup_ns(nsi, nse[0], 0x1001, 0x1000); |
| 672 | nsvc = gprs_nsvc_by_nsvci(nsi, 0x1001); |
| 673 | gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); |
| 674 | OSMO_ASSERT(nsvc->state & NSE_S_BLOCKED); |
| 675 | OSMO_ASSERT(nsvc->state & NSE_S_RESET); |
| 676 | send_ns_unblock_ack(nsi, nse[0]); |
| 677 | gprs_dump_nsi(nsi); |
| 678 | send_ns_reset_ack(nsi, nse[0], 0x1001, 0x1000); |
| 679 | expire_nsvc_timer(nsvc); |
| 680 | OSMO_ASSERT(nsvc->state & NSE_S_BLOCKED); |
| 681 | OSMO_ASSERT(nsvc->state & NSE_S_RESET); |
| 682 | send_ns_reset_ack(nsi, nse[0], 0x1001, 0x1000); |
| 683 | gprs_dump_nsi(nsi); |
| 684 | |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 685 | gprs_ns_destroy(nsi); |
| 686 | nsi = NULL; |
| 687 | } |
| 688 | |
| 689 | |
| 690 | static void test_sgsn_reset() |
| 691 | { |
| 692 | struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); |
| 693 | struct sockaddr_in sgsn_peer= {0}; |
| 694 | struct gprs_nsvc *nsvc; |
| 695 | |
| 696 | sgsn_peer.sin_family = AF_INET; |
| 697 | sgsn_peer.sin_port = htons(32000); |
| 698 | sgsn_peer.sin_addr.s_addr = htonl(REMOTE_SGSN_ADDR); |
| 699 | |
| 700 | gprs_dump_nsi(nsi); |
| 701 | |
| 702 | printf("--- Setup SGSN connection, BSS -> SGSN ---\n\n"); |
| 703 | |
| 704 | gprs_ns_nsip_connect(nsi, &sgsn_peer, SGSN_NSEI, SGSN_NSEI+1); |
| 705 | send_ns_reset_ack(nsi, &sgsn_peer, SGSN_NSEI+1, SGSN_NSEI); |
| 706 | send_ns_alive_ack(nsi, &sgsn_peer); |
| 707 | send_ns_unblock_ack(nsi, &sgsn_peer); |
| 708 | gprs_dump_nsi(nsi); |
| 709 | |
| 710 | printf("--- RESET, SGSN -> BSS ---\n\n"); |
| 711 | |
| 712 | send_ns_reset(nsi, &sgsn_peer, NS_CAUSE_OM_INTERVENTION, |
| 713 | SGSN_NSEI+1, SGSN_NSEI); |
| 714 | gprs_dump_nsi(nsi); |
| 715 | |
| 716 | /* Test 3GPP TS 08.16, 7.3.1, 3rd paragraph. */ |
| 717 | |
| 718 | printf("--- RESET with invalid NSEI, SGSN -> BSS ---\n\n"); |
| 719 | |
| 720 | send_ns_reset(nsi, &sgsn_peer, NS_CAUSE_OM_INTERVENTION, |
| 721 | SGSN_NSEI+1, 0xf000); |
| 722 | gprs_dump_nsi(nsi); |
| 723 | |
| 724 | /* Test 3GPP TS 08.16, 7.3.1, 2nd paragraph. */ |
| 725 | |
| 726 | printf("--- RESET with invalid NSVCI, SGSN -> BSS ---\n\n"); |
| 727 | |
| 728 | send_ns_reset(nsi, &sgsn_peer, NS_CAUSE_OM_INTERVENTION, |
| 729 | 0xf001, SGSN_NSEI); |
| 730 | gprs_dump_nsi(nsi); |
| 731 | |
| 732 | printf("--- RESET, SGSN -> BSS ---\n\n"); |
| 733 | |
| 734 | send_ns_reset(nsi, &sgsn_peer, NS_CAUSE_OM_INTERVENTION, |
| 735 | SGSN_NSEI+1, SGSN_NSEI); |
| 736 | gprs_dump_nsi(nsi); |
| 737 | |
| 738 | /* Test 3GPP TS 08.16, 7.3.1, 5th paragraph. */ |
| 739 | |
| 740 | printf("--- Unexpected RESET_ACK VC 1, BSS -> SGSN ---\n\n"); |
| 741 | |
| 742 | send_ns_reset_ack(nsi, &sgsn_peer, SGSN_NSEI+1, SGSN_NSEI); |
| 743 | gprs_dump_nsi(nsi); |
| 744 | |
| 745 | /* Test 3GPP TS 08.16, 7.3.1, 4th paragraph. */ |
| 746 | |
| 747 | printf("--- RESET_ACK with invalid NSEI, BSS -> SGSN ---\n\n"); |
| 748 | |
| 749 | nsvc = gprs_nsvc_by_nsvci(nsi, SGSN_NSEI+1); |
Jacob Erlbeck | f357c87 | 2014-10-07 13:52:07 +0200 | [diff] [blame] | 750 | gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 751 | send_ns_reset_ack(nsi, &sgsn_peer, SGSN_NSEI+1, 0xe000); |
| 752 | gprs_dump_nsi(nsi); |
| 753 | |
| 754 | /* Test 3GPP TS 08.16, 7.3.1, 4th paragraph. */ |
| 755 | |
| 756 | printf("--- RESET_ACK with invalid NSVCI, BSS -> SGSN ---\n\n"); |
| 757 | |
| 758 | nsvc = gprs_nsvc_by_nsvci(nsi, SGSN_NSEI+1); |
Jacob Erlbeck | f357c87 | 2014-10-07 13:52:07 +0200 | [diff] [blame] | 759 | gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 760 | send_ns_reset_ack(nsi, &sgsn_peer, 0xe001, SGSN_NSEI); |
| 761 | gprs_dump_nsi(nsi); |
| 762 | |
| 763 | |
| 764 | gprs_ns_destroy(nsi); |
| 765 | nsi = NULL; |
| 766 | } |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 767 | |
Jacob Erlbeck | cdb85f5 | 2014-10-07 14:07:39 +0200 | [diff] [blame] | 768 | static void test_sgsn_reset_invalid_state() |
| 769 | { |
| 770 | struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); |
| 771 | struct sockaddr_in sgsn_peer= {0}; |
| 772 | struct gprs_nsvc *nsvc; |
| 773 | int retry; |
| 774 | uint8_t dummy_sdu[] = {0x01, 0x02, 0x03, 0x04}; |
| 775 | |
| 776 | sgsn_peer.sin_family = AF_INET; |
| 777 | sgsn_peer.sin_port = htons(32000); |
| 778 | sgsn_peer.sin_addr.s_addr = htonl(REMOTE_SGSN_ADDR); |
| 779 | |
| 780 | gprs_dump_nsi(nsi); |
| 781 | |
| 782 | printf("=== %s ===\n", __func__); |
| 783 | printf("--- Setup SGSN connection, BSS -> SGSN ---\n\n"); |
| 784 | |
| 785 | gprs_ns_nsip_connect(nsi, &sgsn_peer, SGSN_NSEI, SGSN_NSEI+1); |
| 786 | OSMO_ASSERT(sent_pdu_type == NS_PDUT_RESET); |
| 787 | send_ns_reset_ack(nsi, &sgsn_peer, SGSN_NSEI+1, SGSN_NSEI); |
| 788 | OSMO_ASSERT(sent_pdu_type == NS_PDUT_ALIVE); |
| 789 | send_ns_alive_ack(nsi, &sgsn_peer); |
| 790 | OSMO_ASSERT(sent_pdu_type == NS_PDUT_UNBLOCK); |
| 791 | send_ns_unblock_ack(nsi, &sgsn_peer); |
| 792 | gprs_dump_nsi(nsi); |
| 793 | nsvc = gprs_nsvc_by_nsvci(nsi, SGSN_NSEI+1); |
| 794 | OSMO_ASSERT(nsvc->state == NSE_S_ALIVE); |
| 795 | OSMO_ASSERT(nsvc->remote_state == NSE_S_ALIVE); |
| 796 | |
| 797 | printf("--- Time out local test procedure ---\n\n"); |
| 798 | |
| 799 | OSMO_ASSERT(expire_nsvc_timer(nsvc) == NSVC_TIMER_TNS_TEST); |
| 800 | OSMO_ASSERT(expire_nsvc_timer(nsvc) == NSVC_TIMER_TNS_ALIVE); |
| 801 | |
| 802 | for (retry = 1; retry <= nsi->timeout[NS_TOUT_TNS_ALIVE_RETRIES]; ++retry) |
| 803 | OSMO_ASSERT(expire_nsvc_timer(nsvc) == NSVC_TIMER_TNS_ALIVE); |
| 804 | |
| 805 | OSMO_ASSERT(nsvc->state == NSE_S_BLOCKED); |
| 806 | |
| 807 | printf("--- Remote test procedure continues ---\n\n"); |
| 808 | |
| 809 | send_ns_alive(nsi, &sgsn_peer); |
| 810 | OSMO_ASSERT(sent_pdu_type == NS_PDUT_RESET); |
| 811 | |
| 812 | printf("--- Don't send a NS_RESET_ACK message (pretend it is lost) ---\n\n"); |
| 813 | |
| 814 | sent_pdu_type = -1; |
| 815 | send_ns_alive(nsi, &sgsn_peer); |
Jacob Erlbeck | cdb85f5 | 2014-10-07 14:07:39 +0200 | [diff] [blame] | 816 | OSMO_ASSERT(sent_pdu_type == -1); |
Jacob Erlbeck | dade018 | 2014-10-09 11:07:56 +0200 | [diff] [blame] | 817 | |
Jacob Erlbeck | cdb85f5 | 2014-10-07 14:07:39 +0200 | [diff] [blame] | 818 | send_ns_reset_ack(nsi, &sgsn_peer, SGSN_NSEI+1, SGSN_NSEI); |
| 819 | OSMO_ASSERT(sent_pdu_type == NS_PDUT_ALIVE); |
Jacob Erlbeck | dade018 | 2014-10-09 11:07:56 +0200 | [diff] [blame] | 820 | |
Jacob Erlbeck | cdb85f5 | 2014-10-07 14:07:39 +0200 | [diff] [blame] | 821 | send_ns_alive_ack(nsi, &sgsn_peer); |
Jacob Erlbeck | dade018 | 2014-10-09 11:07:56 +0200 | [diff] [blame] | 822 | OSMO_ASSERT(nsvc->state == (NSE_S_ALIVE | NSE_S_BLOCKED)); |
| 823 | OSMO_ASSERT(nsvc->remote_state == (NSE_S_ALIVE | NSE_S_BLOCKED)); |
Jacob Erlbeck | cdb85f5 | 2014-10-07 14:07:39 +0200 | [diff] [blame] | 824 | OSMO_ASSERT(sent_pdu_type == NS_PDUT_UNBLOCK); |
Jacob Erlbeck | dade018 | 2014-10-09 11:07:56 +0200 | [diff] [blame] | 825 | |
Jacob Erlbeck | cdb85f5 | 2014-10-07 14:07:39 +0200 | [diff] [blame] | 826 | send_ns_unblock_ack(nsi, &sgsn_peer); |
Jacob Erlbeck | dade018 | 2014-10-09 11:07:56 +0200 | [diff] [blame] | 827 | OSMO_ASSERT(nsvc->state == NSE_S_ALIVE); |
| 828 | OSMO_ASSERT(nsvc->remote_state == NSE_S_ALIVE); |
Jacob Erlbeck | cdb85f5 | 2014-10-07 14:07:39 +0200 | [diff] [blame] | 829 | |
| 830 | send_ns_unitdata(nsi, &sgsn_peer, 0x1234, dummy_sdu, sizeof(dummy_sdu)); |
| 831 | |
| 832 | gprs_ns_destroy(nsi); |
| 833 | nsi = NULL; |
| 834 | } |
| 835 | |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 836 | static void test_sgsn_output() |
| 837 | { |
| 838 | struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); |
| 839 | struct sockaddr_in sgsn_peer= {0}; |
| 840 | |
| 841 | sgsn_peer.sin_family = AF_INET; |
| 842 | sgsn_peer.sin_port = htons(32000); |
| 843 | sgsn_peer.sin_addr.s_addr = htonl(REMOTE_SGSN_ADDR); |
| 844 | |
| 845 | gprs_dump_nsi(nsi); |
| 846 | |
| 847 | printf("--- Send message to SGSN ---\n\n"); |
| 848 | |
| 849 | gprs_send_message(nsi, "BSSGP RESET", SGSN_NSEI, 0, |
| 850 | gprs_bssgp_reset+4, sizeof(gprs_bssgp_reset)-4); |
| 851 | |
| 852 | printf("--- Setup dead connection to SGSN ---\n\n"); |
| 853 | |
| 854 | gprs_ns_nsip_connect(nsi, &sgsn_peer, SGSN_NSEI, SGSN_NSEI+1); |
| 855 | gprs_dump_nsi(nsi); |
| 856 | |
| 857 | printf("--- Send message to SGSN ---\n\n"); |
| 858 | |
| 859 | gprs_send_message(nsi, "BSSGP RESET", SGSN_NSEI, 0, |
| 860 | gprs_bssgp_reset+4, sizeof(gprs_bssgp_reset)-4); |
| 861 | |
| 862 | printf("--- Make connection to SGSN alive ---\n\n"); |
| 863 | |
| 864 | send_ns_reset_ack(nsi, &sgsn_peer, SGSN_NSEI+1, SGSN_NSEI); |
| 865 | send_ns_alive_ack(nsi, &sgsn_peer); |
| 866 | gprs_dump_nsi(nsi); |
| 867 | |
| 868 | printf("--- Send message to SGSN ---\n\n"); |
| 869 | |
| 870 | gprs_send_message(nsi, "BSSGP RESET", SGSN_NSEI, 0, |
| 871 | gprs_bssgp_reset+4, sizeof(gprs_bssgp_reset)-4); |
| 872 | |
| 873 | printf("--- Unblock connection to SGSN ---\n\n"); |
| 874 | |
| 875 | send_ns_unblock_ack(nsi, &sgsn_peer); |
| 876 | send_ns_alive(nsi, &sgsn_peer); |
| 877 | gprs_dump_nsi(nsi); |
| 878 | |
| 879 | printf("--- Send message to SGSN ---\n\n"); |
| 880 | |
| 881 | gprs_send_message(nsi, "BSSGP RESET", SGSN_NSEI, 0, |
| 882 | gprs_bssgp_reset+4, sizeof(gprs_bssgp_reset)-4); |
| 883 | |
| 884 | printf("--- Send empty message with BVCI to SGSN ---\n\n"); |
| 885 | |
| 886 | gprs_send_message(nsi, "[empty]", SGSN_NSEI, 0x0102, |
| 887 | gprs_bssgp_reset, 0); |
| 888 | |
| 889 | |
| 890 | gprs_ns_destroy(nsi); |
| 891 | nsi = NULL; |
| 892 | } |
| 893 | |
| 894 | |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 895 | int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx) |
| 896 | { |
| 897 | return -1; |
| 898 | } |
| 899 | |
| 900 | static struct log_info info = {}; |
| 901 | |
| 902 | int main(int argc, char **argv) |
| 903 | { |
Neels Hofmeyr | a829b45 | 2018-04-05 03:02:35 +0200 | [diff] [blame] | 904 | void *ctx = talloc_named_const(NULL, 0, "gprs_ns_test"); |
| 905 | osmo_init_logging2(ctx, &info); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 906 | log_set_use_color(osmo_stderr_target, 0); |
| 907 | log_set_print_filename(osmo_stderr_target, 0); |
Jacob Erlbeck | 34fc470 | 2013-10-09 11:27:04 +0200 | [diff] [blame] | 908 | osmo_signal_register_handler(SS_L_NS, &test_signal, NULL); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 909 | |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 910 | log_set_print_filename(osmo_stderr_target, 0); |
| 911 | log_set_log_level(osmo_stderr_target, LOGL_INFO); |
| 912 | |
| 913 | setlinebuf(stdout); |
| 914 | |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 915 | printf("===== NS protocol test START\n"); |
Jacob Erlbeck | a52ba01 | 2013-10-24 01:33:21 +0200 | [diff] [blame] | 916 | test_nsvc(); |
Jacob Erlbeck | e7c4271 | 2013-10-28 13:29:10 +0100 | [diff] [blame] | 917 | test_ignored_messages(); |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 918 | test_bss_port_changes(); |
Jacob Erlbeck | 81d7c14 | 2013-10-24 01:33:22 +0200 | [diff] [blame] | 919 | test_bss_reset_ack(); |
| 920 | test_sgsn_reset(); |
Jacob Erlbeck | cdb85f5 | 2014-10-07 14:07:39 +0200 | [diff] [blame] | 921 | test_sgsn_reset_invalid_state(); |
Jacob Erlbeck | 0d4e949 | 2013-10-17 13:58:34 +0200 | [diff] [blame] | 922 | test_sgsn_output(); |
Jacob Erlbeck | dcce196 | 2013-10-08 12:04:43 +0200 | [diff] [blame] | 923 | printf("===== NS protocol test END\n\n"); |
| 924 | |
| 925 | exit(EXIT_SUCCESS); |
| 926 | } |