Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 1 | /* test routines for NS connection handling |
| 2 | * (C) 2020 sysmocom - s.f.m.c. GmbH |
| 3 | * Author: Alexander Couzens <lynxis@fe80.eu> |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #undef _GNU_SOURCE |
| 9 | #define _GNU_SOURCE |
| 10 | |
| 11 | #include <stdio.h> |
| 12 | #include <stdlib.h> |
| 13 | #include <unistd.h> |
| 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/fsm.h> |
| 22 | #include <osmocom/core/msgb.h> |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 23 | #include <osmocom/core/utils.h> |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 24 | #include <osmocom/core/application.h> |
| 25 | #include <osmocom/core/utils.h> |
| 26 | #include <osmocom/core/logging.h> |
| 27 | #include <osmocom/core/socket.h> |
| 28 | #include <osmocom/core/talloc.h> |
| 29 | #include <osmocom/core/write_queue.h> |
| 30 | #include <osmocom/gprs/gprs_msgb.h> |
| 31 | #include <osmocom/gprs/gprs_ns2.h> |
| 32 | #include <osmocom/gprs/gprs_bssgp.h> |
| 33 | |
| 34 | #include "../../src/gb/gprs_ns2_internal.h" |
| 35 | |
| 36 | int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx) |
| 37 | { |
| 38 | return -1; |
| 39 | } |
| 40 | |
| 41 | static struct log_info info = {}; |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 42 | static struct osmo_wqueue *unitdata = NULL; |
Alexander Couzens | 4f1128f | 2021-01-20 17:42:48 +0100 | [diff] [blame] | 43 | static struct osmo_gprs_ns2_prim last_nse_recovery = {}; |
Alexander Couzens | db7b2ab | 2021-07-02 16:12:28 +0200 | [diff] [blame] | 44 | static struct osmo_gprs_ns2_prim last_nse_mtu_change = {}; |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 45 | |
| 46 | static int ns_prim_cb(struct osmo_prim_hdr *oph, void *ctx) |
| 47 | { |
Alexander Couzens | 4f1128f | 2021-01-20 17:42:48 +0100 | [diff] [blame] | 48 | struct osmo_gprs_ns2_prim *nsp; |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 49 | OSMO_ASSERT(oph->sap == SAP_NS); |
Alexander Couzens | 4f1128f | 2021-01-20 17:42:48 +0100 | [diff] [blame] | 50 | nsp = container_of(oph, struct osmo_gprs_ns2_prim, oph); |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 51 | if (oph->msg) { |
Alexander Couzens | 138b96f | 2021-01-25 16:23:29 +0100 | [diff] [blame] | 52 | if (oph->primitive == GPRS_NS2_PRIM_UNIT_DATA) { |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 53 | osmo_wqueue_enqueue(unitdata, oph->msg); |
| 54 | } else { |
| 55 | msgb_free(oph->msg); |
| 56 | } |
| 57 | } |
Alexander Couzens | db7b2ab | 2021-07-02 16:12:28 +0200 | [diff] [blame] | 58 | if (oph->primitive == GPRS_NS2_PRIM_STATUS) { |
| 59 | if (nsp->u.status.cause == GPRS_NS2_AFF_CAUSE_RECOVERY) { |
| 60 | last_nse_recovery = *nsp; |
| 61 | } else if (nsp->u.status.cause == GPRS_NS2_AFF_CAUSE_MTU_CHANGE) { |
| 62 | last_nse_mtu_change = *nsp; |
| 63 | } |
Alexander Couzens | 4f1128f | 2021-01-20 17:42:48 +0100 | [diff] [blame] | 64 | } |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 65 | return 0; |
| 66 | } |
| 67 | |
Alexander Couzens | d8a8d98 | 2021-02-15 01:07:45 +0100 | [diff] [blame] | 68 | static int gp_send_to_ns(struct gprs_ns2_inst *nsi, struct msgb *msg, uint16_t nsei, uint16_t bvci, uint32_t lsp) |
| 69 | { |
| 70 | struct osmo_gprs_ns2_prim nsp = {}; |
| 71 | nsp.nsei = nsei; |
| 72 | nsp.bvci = bvci; |
| 73 | nsp.u.unitdata.link_selector = lsp; |
| 74 | osmo_prim_init(&nsp.oph, SAP_NS, GPRS_NS2_PRIM_UNIT_DATA, |
| 75 | PRIM_OP_REQUEST, msg); |
| 76 | return gprs_ns2_recv_prim(nsi, &nsp.oph); |
| 77 | } |
| 78 | |
| 79 | |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 80 | static struct msgb *get_pdu(struct gprs_ns2_vc_bind *bind, enum ns_pdu_type pdu_type) |
| 81 | { |
| 82 | struct gprs_ns_hdr *nsh; |
| 83 | struct osmo_wqueue *queue = bind->priv; |
| 84 | |
| 85 | while (!llist_empty(&queue->msg_queue)) { |
| 86 | struct msgb *msg = msgb_dequeue(&queue->msg_queue); |
| 87 | nsh = (struct gprs_ns_hdr *) msg->l2h; |
| 88 | if (nsh->pdu_type == pdu_type) |
| 89 | return msg; |
| 90 | msgb_free(msg); |
| 91 | } |
| 92 | |
| 93 | return NULL; |
| 94 | } |
| 95 | |
| 96 | static bool find_pdu(struct gprs_ns2_vc_bind *bind, enum ns_pdu_type pdu_type) |
| 97 | { |
| 98 | struct msgb *msg; |
| 99 | msg = get_pdu(bind, pdu_type); |
| 100 | if (msg) { |
| 101 | msgb_free(msg); |
| 102 | return true; |
| 103 | } |
| 104 | |
| 105 | return false; |
| 106 | } |
| 107 | |
Alexander Couzens | d8a8d98 | 2021-02-15 01:07:45 +0100 | [diff] [blame] | 108 | static unsigned int count_pdus(struct gprs_ns2_vc_bind *bind) |
| 109 | { |
| 110 | struct osmo_wqueue *queue = bind->priv; |
| 111 | return llist_count(&queue->msg_queue); |
| 112 | } |
| 113 | |
Alexander Couzens | af5bfeb | 2021-01-17 20:12:37 +0100 | [diff] [blame] | 114 | static void clear_pdus(struct gprs_ns2_vc_bind *bind) |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 115 | { |
Alexander Couzens | af5bfeb | 2021-01-17 20:12:37 +0100 | [diff] [blame] | 116 | struct osmo_wqueue *queue = bind->priv; |
| 117 | osmo_wqueue_clear(queue); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 118 | } |
| 119 | |
| 120 | struct gprs_ns2_vc_driver vc_driver_dummy = { |
| 121 | .name = "GB UDP dummy", |
Alexander Couzens | af5bfeb | 2021-01-17 20:12:37 +0100 | [diff] [blame] | 122 | .free_bind = clear_pdus, |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 123 | }; |
| 124 | |
| 125 | static int vc_sendmsg(struct gprs_ns2_vc *nsvc, struct msgb *msg) |
| 126 | { |
| 127 | struct gprs_ns2_vc_bind *bind = nsvc->bind; |
| 128 | struct osmo_wqueue *queue = bind->priv; |
| 129 | |
| 130 | osmo_wqueue_enqueue(queue, msg); |
| 131 | return 0; |
| 132 | } |
| 133 | |
| 134 | static struct gprs_ns2_vc_bind *dummy_bind(struct gprs_ns2_inst *nsi, const char *name) |
| 135 | { |
Harald Welte | c3aa8f9 | 2021-01-31 11:41:34 +0100 | [diff] [blame] | 136 | struct gprs_ns2_vc_bind *bind = NULL; |
| 137 | OSMO_ASSERT(ns2_bind_alloc(nsi, name, &bind) == 0); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 138 | OSMO_ASSERT(bind); |
| 139 | |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 140 | bind->driver = &vc_driver_dummy; |
| 141 | bind->ll = GPRS_NS2_LL_UDP; |
| 142 | bind->transfer_capability = 42; |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 143 | bind->send_vc = vc_sendmsg; |
| 144 | bind->priv = talloc_zero(bind, struct osmo_wqueue); |
Alexander Couzens | 4f1128f | 2021-01-20 17:42:48 +0100 | [diff] [blame] | 145 | bind->mtu = 123; |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 146 | struct osmo_wqueue *queue = bind->priv; |
| 147 | |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 148 | osmo_wqueue_init(queue, 100); |
| 149 | |
| 150 | return bind; |
| 151 | } |
| 152 | |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 153 | static void free_loopback(struct gprs_ns2_vc_bind *bind) {} |
| 154 | |
| 155 | struct gprs_ns2_vc_driver vc_driver_loopback = { |
| 156 | .name = "loopback dummy", |
| 157 | .free_bind = free_loopback, |
| 158 | }; |
| 159 | |
| 160 | /* loopback the msg */ |
| 161 | static int loopback_sendmsg(struct gprs_ns2_vc *nsvc, struct msgb *msg) |
| 162 | { |
| 163 | struct gprs_ns2_vc *target = nsvc->priv; |
| 164 | return ns2_recv_vc(target, msg); |
| 165 | } |
| 166 | |
| 167 | /* create a loopback nsvc object which can be used with ns2_tx_* functions. it's not fully registered etc. */ |
| 168 | static struct gprs_ns2_vc *loopback_nsvc(struct gprs_ns2_vc_bind *bind, struct gprs_ns2_vc *target) |
| 169 | { |
| 170 | struct gprs_ns2_vc *nsvc = talloc_zero(bind, struct gprs_ns2_vc); |
| 171 | memcpy(nsvc, target, sizeof(struct gprs_ns2_vc)); |
| 172 | nsvc->bind = bind; |
| 173 | nsvc->priv = target; |
| 174 | return nsvc; |
| 175 | } |
| 176 | |
| 177 | /* a loop back bind to use the tx_ functions from gprs_ns2_message.c */ |
| 178 | static struct gprs_ns2_vc_bind *loopback_bind(struct gprs_ns2_inst *nsi, const char *name) |
| 179 | { |
Harald Welte | c3aa8f9 | 2021-01-31 11:41:34 +0100 | [diff] [blame] | 180 | struct gprs_ns2_vc_bind *bind = NULL; |
| 181 | OSMO_ASSERT(ns2_bind_alloc(nsi, name, &bind) == 0) |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 182 | OSMO_ASSERT(bind); |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 183 | bind->driver = &vc_driver_loopback; |
| 184 | bind->ll = GPRS_NS2_LL_UDP; |
| 185 | bind->transfer_capability = 99; |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 186 | bind->send_vc = loopback_sendmsg; |
Alexander Couzens | 4f1128f | 2021-01-20 17:42:48 +0100 | [diff] [blame] | 187 | bind->mtu = 123; |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 188 | return bind; |
| 189 | } |
| 190 | |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 191 | void test_nse_transfer_cap(void *ctx) |
| 192 | { |
| 193 | struct gprs_ns2_inst *nsi; |
| 194 | struct gprs_ns2_vc_bind *bind[2]; |
| 195 | struct gprs_ns2_nse *nse; |
| 196 | struct gprs_ns2_vc *nsvc[3]; |
| 197 | |
| 198 | /* create a UDP dummy bind[0] with transfer cap 42. |
| 199 | * create nse (nsei 1001) |
| 200 | * create 2x nsvc with the same bind. |
| 201 | * nsvc[0] or nsvc[1] is alive (or both) cap == 42 |
| 202 | * |
| 203 | * create a second bind with transfer cap == 23 |
| 204 | * create 3rd nsvc with bind[1] |
| 205 | * transfer cap should be 42 + 23 |
| 206 | */ |
| 207 | |
| 208 | printf("--- Testing NSE transfer cap\n"); |
| 209 | |
| 210 | printf("---- Create NSE + Binds\n"); |
| 211 | nsi = gprs_ns2_instantiate(ctx, ns_prim_cb, NULL); |
| 212 | bind[0] = dummy_bind(nsi, "transfercap1"); |
| 213 | bind[1] = dummy_bind(nsi, "transfercap2"); |
| 214 | bind[1]->transfer_capability = 23; |
Alexander Couzens | 138b96f | 2021-01-25 16:23:29 +0100 | [diff] [blame] | 215 | nse = gprs_ns2_create_nse(nsi, 1001, GPRS_NS2_LL_UDP, GPRS_NS2_DIALECT_STATIC_ALIVE); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 216 | OSMO_ASSERT(nse); |
| 217 | |
| 218 | printf("---- Test with NSVC[0]\n"); |
Alexander Couzens | 138b96f | 2021-01-25 16:23:29 +0100 | [diff] [blame] | 219 | nsvc[0] = ns2_vc_alloc(bind[0], nse, false, GPRS_NS2_VC_MODE_ALIVE, NULL); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 220 | OSMO_ASSERT(nsvc[0]); |
| 221 | OSMO_ASSERT(ns2_count_transfer_cap(nse, 0) == 0); |
| 222 | nsvc[0]->fi->state = 3; /* HACK: 3 = GPRS_NS2_ST_UNBLOCKED */ |
| 223 | ns2_nse_notify_unblocked(nsvc[0], true); |
| 224 | OSMO_ASSERT(ns2_count_transfer_cap(nse, 0) == 42); |
| 225 | |
| 226 | printf("---- Test with NSVC[1]\n"); |
Alexander Couzens | 138b96f | 2021-01-25 16:23:29 +0100 | [diff] [blame] | 227 | nsvc[1] = ns2_vc_alloc(bind[0], nse, false, GPRS_NS2_VC_MODE_ALIVE, NULL); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 228 | OSMO_ASSERT(nsvc[1]); |
| 229 | OSMO_ASSERT(ns2_count_transfer_cap(nse, 0) == 42); |
| 230 | nsvc[1]->fi->state = 3; /* HACK: 3 = GPRS_NS2_ST_UNBLOCKED */ |
| 231 | ns2_nse_notify_unblocked(nsvc[1], true); |
| 232 | OSMO_ASSERT(ns2_count_transfer_cap(nse, 0) == 42); |
| 233 | |
| 234 | printf("---- Test with NSVC[2]\n"); |
Alexander Couzens | 138b96f | 2021-01-25 16:23:29 +0100 | [diff] [blame] | 235 | nsvc[2] = ns2_vc_alloc(bind[1], nse, false, GPRS_NS2_VC_MODE_ALIVE, NULL); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 236 | OSMO_ASSERT(nsvc[2]); |
| 237 | OSMO_ASSERT(ns2_count_transfer_cap(nse, 0) == 42); |
| 238 | nsvc[2]->fi->state = 3; /* HACK: 3 = GPRS_NS2_ST_UNBLOCKED */ |
| 239 | ns2_nse_notify_unblocked(nsvc[2], true); |
| 240 | OSMO_ASSERT(ns2_count_transfer_cap(nse, 0) == 42 + 23); |
| 241 | |
| 242 | printf("---- Test with NSVC[1] removed\n"); |
| 243 | /* reset nsvc[1] to be unconfigured - shouldn't change anything */ |
| 244 | nsvc[1]->fi->state = 0; /* HACK: 0 = GPRS_NS2_ST_UNCONFIGURED */ |
| 245 | ns2_nse_notify_unblocked(nsvc[1], false); |
| 246 | OSMO_ASSERT(ns2_count_transfer_cap(nse, 0) == 42 + 23); |
| 247 | |
Alexander Couzens | aca31b8 | 2021-01-17 20:15:20 +0100 | [diff] [blame] | 248 | gprs_ns2_free(nsi); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 249 | printf("--- Finish NSE transfer cap\n"); |
| 250 | |
| 251 | } |
| 252 | |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 253 | /* setup NSE with 2x NSVCs. |
| 254 | * block 1x NSVC |
| 255 | * unblock 1x NSVC*/ |
| 256 | void test_block_unblock_nsvc(void *ctx) |
| 257 | { |
| 258 | struct gprs_ns2_inst *nsi; |
| 259 | struct gprs_ns2_vc_bind *bind[2]; |
| 260 | struct gprs_ns2_nse *nse; |
| 261 | struct gprs_ns2_vc *nsvc[2]; |
| 262 | struct gprs_ns_hdr *nsh; |
| 263 | struct msgb *msg; |
| 264 | char idbuf[32]; |
Harald Welte | 2846ee2 | 2021-01-21 10:22:09 +0100 | [diff] [blame] | 265 | int i; |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 266 | |
| 267 | printf("--- Testing NSE block unblock nsvc\n"); |
| 268 | printf("---- Create NSE + Binds\n"); |
| 269 | nsi = gprs_ns2_instantiate(ctx, ns_prim_cb, NULL); |
| 270 | bind[0] = dummy_bind(nsi, "bblock1"); |
| 271 | bind[1] = dummy_bind(nsi, "bblock2"); |
Alexander Couzens | 138b96f | 2021-01-25 16:23:29 +0100 | [diff] [blame] | 272 | nse = gprs_ns2_create_nse(nsi, 1001, GPRS_NS2_LL_UDP, GPRS_NS2_DIALECT_STATIC_RESETBLOCK); |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 273 | OSMO_ASSERT(nse); |
| 274 | |
Harald Welte | 2846ee2 | 2021-01-21 10:22:09 +0100 | [diff] [blame] | 275 | for (i=0; i<2; i++) { |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 276 | printf("---- Create NSVC[i]\n"); |
| 277 | snprintf(idbuf, sizeof(idbuf), "NSE%05u-dummy-%i", nse->nsei, i); |
Alexander Couzens | 138b96f | 2021-01-25 16:23:29 +0100 | [diff] [blame] | 278 | nsvc[i] = ns2_vc_alloc(bind[i], nse, false, GPRS_NS2_VC_MODE_BLOCKRESET, idbuf); |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 279 | OSMO_ASSERT(nsvc[i]); |
| 280 | nsvc[i]->fi->state = 3; /* HACK: 3 = GPRS_NS2_ST_UNBLOCKED */ |
| 281 | /* ensure the fi->state works correct */ |
Alexander Couzens | 8dfc24c | 2021-01-25 16:09:23 +0100 | [diff] [blame] | 282 | OSMO_ASSERT(ns2_vc_is_unblocked(nsvc[i])); |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 283 | ns2_nse_notify_unblocked(nsvc[i], true); |
| 284 | } |
| 285 | |
| 286 | /* both nsvcs are unblocked and alive. Let's block it. */ |
| 287 | OSMO_ASSERT(!find_pdu(bind[0], NS_PDUT_BLOCK)); |
| 288 | clear_pdus(bind[0]); |
| 289 | ns2_vc_block(nsvc[0]); |
| 290 | OSMO_ASSERT(find_pdu(bind[0], NS_PDUT_BLOCK)); |
| 291 | /* state == BLOCKED */ |
| 292 | clear_pdus(bind[0]); |
| 293 | |
| 294 | /* now unblocking it */ |
| 295 | ns2_vc_unblock(nsvc[0]); |
| 296 | OSMO_ASSERT(find_pdu(bind[0], NS_PDUT_UNBLOCK)); |
| 297 | clear_pdus(bind[0]); |
| 298 | |
| 299 | msg = msgb_alloc_headroom(NS_ALLOC_SIZE, NS_ALLOC_HEADROOM, "test_unblock"); |
| 300 | msg->l2h = msgb_put(msg, sizeof(*nsh)); |
| 301 | nsh = (struct gprs_ns_hdr *) msg->l2h; |
| 302 | nsh->pdu_type = NS_PDUT_UNBLOCK_ACK; |
| 303 | ns2_recv_vc(nsvc[0], msg); |
| 304 | |
Alexander Couzens | 8dfc24c | 2021-01-25 16:09:23 +0100 | [diff] [blame] | 305 | OSMO_ASSERT(ns2_vc_is_unblocked(nsvc[0])); |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 306 | gprs_ns2_free(nsi); |
| 307 | printf("--- Finish NSE block unblock nsvc\n"); |
| 308 | } |
| 309 | |
Alexander Couzens | e09deb6 | 2021-06-15 21:35:45 +0200 | [diff] [blame] | 310 | /* setup NSE with 2x NSVCs. |
| 311 | * block 1st NSVC |
| 312 | * block 2nd NSVC |
| 313 | * unblock 1st NSVC */ |
| 314 | void test_block_unblock_nsvc2(void *ctx) |
| 315 | { |
| 316 | struct gprs_ns2_inst *nsi; |
| 317 | struct gprs_ns2_vc_bind *bind[2]; |
| 318 | struct gprs_ns2_nse *nse; |
| 319 | struct gprs_ns2_vc *nsvc[2]; |
| 320 | struct gprs_ns_hdr *nsh; |
| 321 | struct msgb *msg; |
| 322 | char idbuf[32]; |
| 323 | int i; |
| 324 | |
| 325 | printf("--- Testing NSE block unblock nsvc2\n"); |
| 326 | printf("---- Create NSE + Binds\n"); |
| 327 | nsi = gprs_ns2_instantiate(ctx, ns_prim_cb, NULL); |
| 328 | bind[0] = dummy_bind(nsi, "bblock1"); |
| 329 | bind[1] = dummy_bind(nsi, "bblock2"); |
| 330 | nse = gprs_ns2_create_nse(nsi, 1001, GPRS_NS2_LL_UDP, GPRS_NS2_DIALECT_STATIC_RESETBLOCK); |
| 331 | OSMO_ASSERT(nse); |
| 332 | |
| 333 | for (i=0; i<2; i++) { |
| 334 | printf("---- Create NSVC[i]\n"); |
| 335 | snprintf(idbuf, sizeof(idbuf), "NSE%05u-dummy-%i", nse->nsei, i); |
| 336 | nsvc[i] = ns2_vc_alloc(bind[i], nse, false, GPRS_NS2_VC_MODE_BLOCKRESET, idbuf); |
| 337 | OSMO_ASSERT(nsvc[i]); |
| 338 | nsvc[i]->fi->state = 3; /* HACK: 3 = GPRS_NS2_ST_UNBLOCKED */ |
| 339 | /* ensure the fi->state works correct */ |
| 340 | OSMO_ASSERT(ns2_vc_is_unblocked(nsvc[i])); |
| 341 | ns2_nse_notify_unblocked(nsvc[i], true); |
| 342 | } |
| 343 | |
| 344 | OSMO_ASSERT(nse->alive); |
| 345 | /* both nsvcs are unblocked and alive. Let's block them. */ |
| 346 | OSMO_ASSERT(!find_pdu(bind[0], NS_PDUT_BLOCK)); |
| 347 | clear_pdus(bind[0]); |
| 348 | ns2_vc_block(nsvc[0]); |
| 349 | OSMO_ASSERT(find_pdu(bind[0], NS_PDUT_BLOCK)); |
| 350 | clear_pdus(bind[0]); |
| 351 | OSMO_ASSERT(nse->alive); |
| 352 | |
| 353 | OSMO_ASSERT(!find_pdu(bind[1], NS_PDUT_BLOCK)); |
| 354 | clear_pdus(bind[1]); |
| 355 | ns2_vc_block(nsvc[1]); |
| 356 | OSMO_ASSERT(find_pdu(bind[1], NS_PDUT_BLOCK)); |
| 357 | clear_pdus(bind[1]); |
| 358 | OSMO_ASSERT(!nse->alive); |
| 359 | |
| 360 | /* now unblocking the 1st NSVC */ |
| 361 | ns2_vc_unblock(nsvc[0]); |
| 362 | OSMO_ASSERT(find_pdu(bind[0], NS_PDUT_UNBLOCK)); |
| 363 | clear_pdus(bind[0]); |
| 364 | msg = msgb_alloc_headroom(NS_ALLOC_SIZE, NS_ALLOC_HEADROOM, "test_unblock"); |
| 365 | msg->l2h = msgb_put(msg, sizeof(*nsh)); |
| 366 | nsh = (struct gprs_ns_hdr *) msg->l2h; |
| 367 | nsh->pdu_type = NS_PDUT_UNBLOCK_ACK; |
| 368 | ns2_recv_vc(nsvc[0], msg); |
| 369 | OSMO_ASSERT(nse->alive); |
| 370 | |
| 371 | OSMO_ASSERT(ns2_vc_is_unblocked(nsvc[0])); |
| 372 | gprs_ns2_free(nsi); |
| 373 | printf("--- Finish NSE block unblock nsvc2\n"); |
| 374 | } |
| 375 | |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 376 | static struct msgb *generate_unitdata(const char *msgname) |
| 377 | { |
| 378 | struct gprs_ns_hdr *nsh; |
| 379 | struct msgb *msg = msgb_alloc_headroom(NS_ALLOC_SIZE, NS_ALLOC_HEADROOM, msgname); |
| 380 | OSMO_ASSERT(msg); |
| 381 | |
| 382 | msg->l2h = msgb_put(msg, sizeof(*nsh) + 6); |
| 383 | nsh = (struct gprs_ns_hdr *) msg->l2h; |
| 384 | nsh->pdu_type = NS_PDUT_UNITDATA; |
| 385 | nsh->data[0] = 0; /* sdu control */ |
| 386 | nsh->data[1] = 0; /* msb bvci */ |
| 387 | nsh->data[2] = 12; /* lsb bvci */ |
| 388 | nsh->data[3] = 0xab; /* first data byte */ |
| 389 | nsh->data[4] = 0xcd; |
| 390 | nsh->data[5] = 0xef; |
| 391 | |
| 392 | return msg; |
| 393 | } |
| 394 | |
| 395 | void test_unitdata(void *ctx) |
| 396 | { |
| 397 | struct gprs_ns2_inst *nsi; |
| 398 | struct gprs_ns2_vc_bind *bind[2]; |
| 399 | struct gprs_ns2_vc_bind *loopbind; |
| 400 | struct gprs_ns2_nse *nse; |
| 401 | struct gprs_ns2_vc *nsvc[2]; |
| 402 | struct gprs_ns2_vc *loop[2]; |
| 403 | |
| 404 | struct msgb *msg, *other; |
| 405 | char idbuf[32]; |
| 406 | int i; |
| 407 | |
| 408 | printf("--- Testing unitdata test\n"); |
| 409 | osmo_wqueue_clear(unitdata); |
| 410 | printf("---- Create NSE + Binds\n"); |
| 411 | nsi = gprs_ns2_instantiate(ctx, ns_prim_cb, NULL); |
| 412 | bind[0] = dummy_bind(nsi, "bblock1"); |
| 413 | bind[1] = dummy_bind(nsi, "bblock2"); |
| 414 | loopbind = loopback_bind(nsi, "loopback"); |
Alexander Couzens | 138b96f | 2021-01-25 16:23:29 +0100 | [diff] [blame] | 415 | nse = gprs_ns2_create_nse(nsi, 1004, GPRS_NS2_LL_UDP, GPRS_NS2_DIALECT_STATIC_RESETBLOCK); |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 416 | OSMO_ASSERT(nse); |
| 417 | |
| 418 | for (i=0; i<2; i++) { |
| 419 | printf("---- Create NSVC[%d]\n", i); |
| 420 | snprintf(idbuf, sizeof(idbuf), "NSE%05u-dummy-%i", nse->nsei, i); |
Alexander Couzens | 138b96f | 2021-01-25 16:23:29 +0100 | [diff] [blame] | 421 | nsvc[i] = ns2_vc_alloc(bind[i], nse, false, GPRS_NS2_VC_MODE_BLOCKRESET, idbuf); |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 422 | loop[i] = loopback_nsvc(loopbind, nsvc[i]); |
| 423 | OSMO_ASSERT(nsvc[i]); |
Alexander Couzens | 8dfc24c | 2021-01-25 16:09:23 +0100 | [diff] [blame] | 424 | ns2_vc_fsm_start(nsvc[i]); |
| 425 | OSMO_ASSERT(!ns2_vc_is_unblocked(nsvc[i])); |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 426 | ns2_tx_reset(loop[i], NS_CAUSE_OM_INTERVENTION); |
| 427 | ns2_tx_unblock(loop[i]); |
Alexander Couzens | 8dfc24c | 2021-01-25 16:09:23 +0100 | [diff] [blame] | 428 | OSMO_ASSERT(ns2_vc_is_unblocked(nsvc[i])); |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 429 | } |
| 430 | |
| 431 | /* both nsvcs are unblocked and alive */ |
| 432 | printf("---- Send UNITDATA to NSVC[0]\n"); |
| 433 | msg = generate_unitdata("test_unitdata"); |
| 434 | ns2_recv_vc(nsvc[0], msg); |
| 435 | other = msgb_dequeue(&unitdata->msg_queue); |
| 436 | OSMO_ASSERT(msg == other); |
| 437 | other = msgb_dequeue(&unitdata->msg_queue); |
| 438 | OSMO_ASSERT(NULL == other); |
| 439 | |
| 440 | printf("---- Send Block NSVC[0]\n"); |
| 441 | ns2_vc_block(nsvc[0]); |
| 442 | ns2_tx_block_ack(loop[0]); |
| 443 | |
| 444 | /* try to receive a unitdata - this should be dropped & freed by NS */ |
| 445 | printf("---- Try to receive over blocked NSVC[0]\n"); |
| 446 | ns2_recv_vc(nsvc[0], msg); |
| 447 | other = msgb_dequeue(&unitdata->msg_queue); |
| 448 | OSMO_ASSERT(NULL == other); |
| 449 | |
| 450 | /* nsvc[1] should be still good */ |
| 451 | printf("---- Receive over NSVC[1]\n"); |
| 452 | msg = generate_unitdata("test_unitdata2"); |
| 453 | ns2_recv_vc(nsvc[1], msg); |
| 454 | other = msgb_dequeue(&unitdata->msg_queue); |
| 455 | OSMO_ASSERT(msg == other); |
| 456 | msgb_free(msg); |
| 457 | |
| 458 | gprs_ns2_free(nsi); |
| 459 | printf("--- Finish unitdata test\n"); |
| 460 | } |
| 461 | |
Alexander Couzens | d8a8d98 | 2021-02-15 01:07:45 +0100 | [diff] [blame] | 462 | void test_unitdata_weights(void *ctx) |
| 463 | { |
| 464 | struct gprs_ns2_inst *nsi; |
| 465 | struct gprs_ns2_vc_bind *bind[3]; |
| 466 | struct gprs_ns2_vc_bind *loopbind; |
| 467 | struct gprs_ns2_nse *nse; |
| 468 | struct gprs_ns2_vc *nsvc[3]; |
| 469 | struct gprs_ns2_vc *loop[3]; |
| 470 | |
| 471 | struct msgb *msg, *other; |
| 472 | char idbuf[32]; |
| 473 | int i; |
| 474 | |
| 475 | printf("--- Testing unitdata weight test\n"); |
| 476 | osmo_wqueue_clear(unitdata); |
| 477 | printf("---- Create NSE + Binds\n"); |
| 478 | nsi = gprs_ns2_instantiate(ctx, ns_prim_cb, NULL); |
| 479 | bind[0] = dummy_bind(nsi, "bblock1"); |
| 480 | bind[1] = dummy_bind(nsi, "bblock2"); |
| 481 | bind[2] = dummy_bind(nsi, "bblock3"); |
| 482 | loopbind = loopback_bind(nsi, "loopback"); |
| 483 | nse = gprs_ns2_create_nse(nsi, 1004, GPRS_NS2_LL_UDP, GPRS_NS2_DIALECT_STATIC_ALIVE); |
| 484 | OSMO_ASSERT(nse); |
| 485 | |
| 486 | /* data weights are |
| 487 | * nsvc[0] = 1 |
| 488 | * nsvc[1] = 2 |
| 489 | * nsvc[2] = 3 |
| 490 | */ |
| 491 | for (i = 0; i < 3; i++) { |
| 492 | printf("---- Create NSVC[%d]\n", i); |
| 493 | snprintf(idbuf, sizeof(idbuf), "NSE%05u-dummy-%i", nse->nsei, i); |
| 494 | nsvc[i] = ns2_vc_alloc(bind[i], nse, false, GPRS_NS2_VC_MODE_ALIVE, idbuf); |
| 495 | loop[i] = loopback_nsvc(loopbind, nsvc[i]); |
| 496 | OSMO_ASSERT(nsvc[i]); |
| 497 | nsvc[i]->data_weight = i + 1; |
| 498 | ns2_vc_fsm_start(nsvc[i]); |
| 499 | OSMO_ASSERT(!ns2_vc_is_unblocked(nsvc[i])); |
| 500 | ns2_tx_alive_ack(loop[i]); |
| 501 | OSMO_ASSERT(ns2_vc_is_unblocked(nsvc[i])); |
| 502 | } |
| 503 | |
| 504 | /* all nsvcs are alive */ |
| 505 | printf("---- Send UNITDATA to all NSVCs\n"); |
| 506 | for (i = 0; i < 3; i++) { |
| 507 | msg = generate_unitdata("test_unitdata_weight"); |
| 508 | ns2_recv_vc(nsvc[i], msg); |
| 509 | other = msgb_dequeue(&unitdata->msg_queue); |
| 510 | OSMO_ASSERT(msg == other); |
| 511 | other = msgb_dequeue(&unitdata->msg_queue); |
| 512 | OSMO_ASSERT(NULL == other); |
| 513 | msgb_free(msg); |
| 514 | } |
| 515 | |
| 516 | /* nsvc[1] should be still good */ |
| 517 | printf("---- Send BSSGP data to the NSE to test unitdata over NSVC[1]\n"); |
| 518 | for (i = 0; i < 3; i++) |
| 519 | clear_pdus(bind[i]); |
| 520 | |
| 521 | for (i = 0; i < 12; i++) { |
| 522 | msg = generate_unitdata("test_unitdata_weight2"); |
| 523 | gp_send_to_ns(nsi, msg, 1004, 1, i + 1); |
| 524 | } |
| 525 | |
| 526 | for (i = 0; i < 3; i++) |
| 527 | fprintf(stderr, "count_pdus(bind[%d]) = %d\n", i, count_pdus(bind[i])); |
| 528 | |
| 529 | for (i = 0; i < 3; i++) { |
| 530 | OSMO_ASSERT(count_pdus(bind[i]) == nsvc[i]->data_weight * 2); |
| 531 | } |
| 532 | |
| 533 | gprs_ns2_free(nsi); |
| 534 | printf("--- Finish unitdata weight test\n"); |
| 535 | } |
| 536 | |
Alexander Couzens | 4f1128f | 2021-01-20 17:42:48 +0100 | [diff] [blame] | 537 | void test_mtu(void *ctx) |
| 538 | { |
| 539 | struct gprs_ns2_inst *nsi; |
| 540 | struct gprs_ns2_vc_bind *bind[2]; |
| 541 | struct gprs_ns2_vc_bind *loopbind; |
| 542 | struct gprs_ns2_nse *nse; |
| 543 | struct gprs_ns2_vc *nsvc[2]; |
| 544 | struct gprs_ns2_vc *loop[2]; |
| 545 | |
| 546 | struct msgb *msg, *other; |
| 547 | char idbuf[32]; |
| 548 | int i; |
| 549 | |
| 550 | printf("--- Testing mtu test\n"); |
| 551 | osmo_wqueue_clear(unitdata); |
| 552 | printf("---- Create NSE + Binds\n"); |
| 553 | nsi = gprs_ns2_instantiate(ctx, ns_prim_cb, NULL); |
| 554 | bind[0] = dummy_bind(nsi, "bblock1"); |
| 555 | bind[1] = dummy_bind(nsi, "bblock2"); |
| 556 | loopbind = loopback_bind(nsi, "loopback"); |
| 557 | nse = gprs_ns2_create_nse(nsi, 1004, GPRS_NS2_LL_UDP, GPRS_NS2_DIALECT_STATIC_RESETBLOCK); |
| 558 | OSMO_ASSERT(nse); |
| 559 | |
| 560 | for (i=0; i<2; i++) { |
| 561 | printf("---- Create NSVC[%d]\n", i); |
| 562 | snprintf(idbuf, sizeof(idbuf), "NSE%05u-dummy-%i", nse->nsei, i); |
| 563 | nsvc[i] = ns2_vc_alloc(bind[i], nse, false, GPRS_NS2_VC_MODE_BLOCKRESET, idbuf); |
| 564 | loop[i] = loopback_nsvc(loopbind, nsvc[i]); |
| 565 | OSMO_ASSERT(nsvc[i]); |
| 566 | ns2_vc_fsm_start(nsvc[i]); |
| 567 | OSMO_ASSERT(!ns2_vc_is_unblocked(nsvc[i])); |
| 568 | ns2_tx_reset(loop[i], NS_CAUSE_OM_INTERVENTION); |
| 569 | ns2_tx_unblock(loop[i]); |
| 570 | OSMO_ASSERT(ns2_vc_is_unblocked(nsvc[i])); |
| 571 | } |
| 572 | |
| 573 | /* both nsvcs are unblocked and alive */ |
| 574 | printf("---- Send a small UNITDATA to NSVC[0]\n"); |
| 575 | msg = generate_unitdata("test_unitdata"); |
| 576 | ns2_recv_vc(nsvc[0], msg); |
| 577 | other = msgb_dequeue(&unitdata->msg_queue); |
| 578 | OSMO_ASSERT(msg == other); |
| 579 | other = msgb_dequeue(&unitdata->msg_queue); |
| 580 | OSMO_ASSERT(NULL == other); |
| 581 | msgb_free(msg); |
| 582 | |
| 583 | printf("---- Check if got mtu reported\n"); |
| 584 | /* 1b NS PDU type, 1b NS SDU control, 2b BVCI */ |
| 585 | OSMO_ASSERT(last_nse_recovery.u.status.mtu == 123 - 4); |
| 586 | |
Alexander Couzens | db7b2ab | 2021-07-02 16:12:28 +0200 | [diff] [blame] | 587 | bind[0]->mtu = 100; |
| 588 | ns2_nse_update_mtu(nse); |
| 589 | OSMO_ASSERT(last_nse_mtu_change.u.status.mtu == 100 - 4); |
| 590 | |
Alexander Couzens | 4f1128f | 2021-01-20 17:42:48 +0100 | [diff] [blame] | 591 | gprs_ns2_free(nsi); |
| 592 | printf("--- Finish unitdata test\n"); |
| 593 | } |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 594 | |
Alexander Couzens | a140d44 | 2021-07-12 16:42:32 +0200 | [diff] [blame] | 595 | void test_unconfigured(void *ctx) |
| 596 | { |
| 597 | struct gprs_ns2_inst *nsi; |
| 598 | struct gprs_ns2_vc_bind *bind[2]; |
| 599 | struct gprs_ns2_vc_bind *loopbind; |
| 600 | struct gprs_ns2_nse *nse; |
| 601 | struct gprs_ns2_vc *nsvc[2]; |
| 602 | struct gprs_ns2_vc *loop[2]; |
| 603 | |
| 604 | char idbuf[32]; |
| 605 | int i; |
| 606 | |
| 607 | printf("--- Testing force unconfigured\n"); |
| 608 | osmo_wqueue_clear(unitdata); |
| 609 | printf("---- Create NSE + Binds\n"); |
| 610 | nsi = gprs_ns2_instantiate(ctx, ns_prim_cb, NULL); |
| 611 | bind[0] = dummy_bind(nsi, "bblock1"); |
| 612 | bind[1] = dummy_bind(nsi, "bblock2"); |
| 613 | loopbind = loopback_bind(nsi, "loopback"); |
| 614 | nse = gprs_ns2_create_nse(nsi, 1004, GPRS_NS2_LL_UDP, GPRS_NS2_DIALECT_STATIC_RESETBLOCK); |
| 615 | OSMO_ASSERT(nse); |
| 616 | |
| 617 | for (i=0; i<2; i++) { |
| 618 | printf("---- Create NSVC[%d]\n", i); |
| 619 | snprintf(idbuf, sizeof(idbuf), "NSE%05u-dummy-%i", nse->nsei, i); |
| 620 | nsvc[i] = ns2_vc_alloc(bind[i], nse, false, GPRS_NS2_VC_MODE_BLOCKRESET, idbuf); |
| 621 | loop[i] = loopback_nsvc(loopbind, nsvc[i]); |
| 622 | OSMO_ASSERT(nsvc[i]); |
| 623 | ns2_vc_fsm_start(nsvc[i]); |
| 624 | OSMO_ASSERT(!ns2_vc_is_unblocked(nsvc[i])); |
| 625 | ns2_tx_reset(loop[i], NS_CAUSE_OM_INTERVENTION); |
| 626 | ns2_tx_unblock(loop[i]); |
| 627 | OSMO_ASSERT(ns2_vc_is_unblocked(nsvc[i])); |
| 628 | } |
| 629 | |
| 630 | /* both nsvcs are unblocked and alive */ |
| 631 | printf("---- Check if NSE is alive\n"); |
| 632 | OSMO_ASSERT(nse->alive); |
| 633 | |
| 634 | ns2_vc_force_unconfigured(nsvc[0]); |
| 635 | OSMO_ASSERT(nse->alive); |
| 636 | |
| 637 | ns2_vc_force_unconfigured(nsvc[1]); |
| 638 | printf("---- Check if NSE is dead\n"); |
| 639 | OSMO_ASSERT(!nse->alive); |
| 640 | |
| 641 | gprs_ns2_free(nsi); |
| 642 | printf("--- Finish force unconfigured test\n"); |
| 643 | } |
| 644 | |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 645 | int main(int argc, char **argv) |
| 646 | { |
| 647 | void *ctx = talloc_named_const(NULL, 0, "gprs_ns2_test"); |
| 648 | osmo_init_logging2(ctx, &info); |
| 649 | log_set_use_color(osmo_stderr_target, 0); |
Pau Espin Pedrol | 01e0d3e | 2021-02-18 19:25:44 +0100 | [diff] [blame] | 650 | log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE); |
Pau Espin Pedrol | 690b661 | 2021-02-18 19:10:28 +0100 | [diff] [blame] | 651 | log_set_print_category(osmo_stderr_target, 0); |
| 652 | log_set_print_category_hex(osmo_stderr_target, 0); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 653 | log_set_log_level(osmo_stderr_target, LOGL_INFO); |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 654 | unitdata = talloc_zero(ctx, struct osmo_wqueue); |
| 655 | osmo_wqueue_init(unitdata, 100); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 656 | setlinebuf(stdout); |
| 657 | |
| 658 | printf("===== NS2 protocol test START\n"); |
| 659 | test_nse_transfer_cap(ctx); |
Alexander Couzens | 47afc42 | 2021-01-17 20:12:46 +0100 | [diff] [blame] | 660 | test_block_unblock_nsvc(ctx); |
Alexander Couzens | e09deb6 | 2021-06-15 21:35:45 +0200 | [diff] [blame] | 661 | test_block_unblock_nsvc2(ctx); |
Alexander Couzens | 8f215c9 | 2021-01-25 15:27:56 +0100 | [diff] [blame] | 662 | test_unitdata(ctx); |
Alexander Couzens | d8a8d98 | 2021-02-15 01:07:45 +0100 | [diff] [blame] | 663 | test_unitdata_weights(ctx); |
Alexander Couzens | a140d44 | 2021-07-12 16:42:32 +0200 | [diff] [blame] | 664 | test_unconfigured(ctx); |
Alexander Couzens | 4f1128f | 2021-01-20 17:42:48 +0100 | [diff] [blame] | 665 | test_mtu(ctx); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 666 | printf("===== NS2 protocol test END\n\n"); |
| 667 | |
Alexander Couzens | e19b796 | 2021-01-17 20:07:54 +0100 | [diff] [blame] | 668 | talloc_free(ctx); |
Alexander Couzens | 1c8785d | 2020-12-17 06:58:53 +0100 | [diff] [blame] | 669 | exit(EXIT_SUCCESS); |
| 670 | } |