Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 1 | #include <string.h> |
| 2 | #include <stdio.h> |
| 3 | #include <errno.h> |
| 4 | #include <signal.h> |
| 5 | |
| 6 | #include <osmocom/core/linuxlist.h> |
| 7 | #include <osmocom/core/msgb.h> |
| 8 | #include <osmocom/core/select.h> |
| 9 | #include <osmocom/core/application.h> |
Neels Hofmeyr | 59504dc | 2017-01-13 03:10:54 +0100 | [diff] [blame] | 10 | #include <osmocom/core/utils.h> |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 11 | #include <osmocom/gsm/gsup.h> |
| 12 | |
Neels Hofmeyr | eaaee92 | 2016-12-08 21:22:58 +0100 | [diff] [blame] | 13 | #include <openbsc/gsup_client.h> |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 14 | #include <openbsc/debug.h> |
| 15 | |
Neels Hofmeyr | 814fef0 | 2016-12-08 21:19:57 +0100 | [diff] [blame] | 16 | static struct gsup_client *g_gc; |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 17 | |
| 18 | |
| 19 | /*********************************************************************** |
| 20 | * IMSI Operation |
| 21 | ***********************************************************************/ |
| 22 | static LLIST_HEAD(g_imsi_ops); |
| 23 | |
| 24 | struct imsi_op_stats { |
| 25 | uint32_t num_alloc; |
| 26 | uint32_t num_released; |
| 27 | uint32_t num_rx_success; |
| 28 | uint32_t num_rx_error; |
| 29 | uint32_t num_timeout; |
| 30 | }; |
| 31 | |
| 32 | enum imsi_op_type { |
| 33 | IMSI_OP_SAI, |
| 34 | IMSI_OP_LU, |
| 35 | IMSI_OP_ISD, |
| 36 | _NUM_IMSI_OP |
| 37 | }; |
| 38 | |
| 39 | static const struct value_string imsi_op_names[] = { |
| 40 | { IMSI_OP_SAI, "SAI" }, |
| 41 | { IMSI_OP_LU, "LU" }, |
| 42 | { IMSI_OP_ISD, "ISD" }, |
| 43 | { 0, NULL } |
| 44 | }; |
| 45 | |
| 46 | static struct imsi_op_stats imsi_op_stats[_NUM_IMSI_OP]; |
| 47 | |
| 48 | struct imsi_op { |
| 49 | struct llist_head list; |
| 50 | char imsi[17]; |
| 51 | enum imsi_op_type type; |
| 52 | struct osmo_timer_list timer; |
| 53 | }; |
| 54 | |
| 55 | static struct imsi_op *imsi_op_find(const char *imsi, |
| 56 | enum imsi_op_type type) |
| 57 | { |
| 58 | struct imsi_op *io; |
| 59 | |
| 60 | llist_for_each_entry(io, &g_imsi_ops, list) { |
| 61 | if (!strcmp(io->imsi, imsi) && io->type == type) |
| 62 | return io; |
| 63 | } |
| 64 | return NULL; |
| 65 | } |
| 66 | |
| 67 | static void imsi_op_timer_cb(void *data); |
| 68 | |
| 69 | static struct imsi_op *imsi_op_alloc(void *ctx, const char *imsi, |
| 70 | enum imsi_op_type type) |
| 71 | { |
| 72 | struct imsi_op *io; |
| 73 | |
| 74 | if (imsi_op_find(imsi, type)) |
| 75 | return NULL; |
| 76 | |
| 77 | io = talloc_zero(ctx, struct imsi_op); |
Neels Hofmeyr | 93bafb6 | 2017-01-13 03:12:08 +0100 | [diff] [blame] | 78 | osmo_strlcpy(io->imsi, imsi, sizeof(io->imsi)); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 79 | io->type = type; |
Pablo Neira Ayuso | 5121576 | 2017-05-08 20:57:52 +0200 | [diff] [blame] | 80 | osmo_timer_setup(&io->timer, imsi_op_timer_cb, io); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 81 | llist_add(&io->list, &g_imsi_ops); |
| 82 | imsi_op_stats[type].num_alloc++; |
| 83 | |
| 84 | return io; |
| 85 | } |
| 86 | |
| 87 | static void imsi_op_release(struct imsi_op *io) |
| 88 | { |
| 89 | osmo_timer_del(&io->timer); |
| 90 | llist_del(&io->list); |
| 91 | imsi_op_stats[io->type].num_released++; |
| 92 | talloc_free(io); |
| 93 | } |
| 94 | |
| 95 | static void imsi_op_timer_cb(void *data) |
| 96 | { |
| 97 | struct imsi_op *io = data; |
| 98 | printf("%s: Timer expiration\n", io->imsi); |
| 99 | imsi_op_stats[io->type].num_timeout++; |
| 100 | imsi_op_release(io); |
| 101 | } |
| 102 | |
| 103 | /* allocate + generate + send Send-Auth-Info */ |
| 104 | int req_auth_info(const char *imsi) |
| 105 | { |
| 106 | struct imsi_op *io = imsi_op_alloc(g_gc, imsi, IMSI_OP_SAI); |
| 107 | struct osmo_gsup_message gsup = {0}; |
| 108 | struct msgb *msg = msgb_alloc_headroom(1200, 200, __func__); |
| 109 | |
Neels Hofmeyr | 59504dc | 2017-01-13 03:10:54 +0100 | [diff] [blame] | 110 | osmo_strlcpy(gsup.imsi, io->imsi, sizeof(gsup.imsi)); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 111 | gsup.message_type = OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST; |
| 112 | |
| 113 | osmo_gsup_encode(msg, &gsup); |
| 114 | |
Neels Hofmeyr | 814fef0 | 2016-12-08 21:19:57 +0100 | [diff] [blame] | 115 | return gsup_client_send(g_gc, msg); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | /* allocate + generate + send Send-Auth-Info */ |
| 119 | int req_loc_upd(const char *imsi) |
| 120 | { |
| 121 | struct imsi_op *io = imsi_op_alloc(g_gc, imsi, IMSI_OP_LU); |
| 122 | struct osmo_gsup_message gsup = {0}; |
| 123 | struct msgb *msg = msgb_alloc_headroom(1200, 200, __func__); |
| 124 | |
Neels Hofmeyr | 59504dc | 2017-01-13 03:10:54 +0100 | [diff] [blame] | 125 | osmo_strlcpy(gsup.imsi, io->imsi, sizeof(gsup.imsi)); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 126 | gsup.message_type = OSMO_GSUP_MSGT_UPDATE_LOCATION_REQUEST; |
| 127 | |
| 128 | osmo_gsup_encode(msg, &gsup); |
| 129 | |
Neels Hofmeyr | 814fef0 | 2016-12-08 21:19:57 +0100 | [diff] [blame] | 130 | return gsup_client_send(g_gc, msg); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | int resp_isd(struct imsi_op *io) |
| 134 | { |
| 135 | struct osmo_gsup_message gsup = {0}; |
| 136 | struct msgb *msg = msgb_alloc_headroom(1200, 200, __func__); |
| 137 | |
Neels Hofmeyr | 59504dc | 2017-01-13 03:10:54 +0100 | [diff] [blame] | 138 | osmo_strlcpy(gsup.imsi, io->imsi, sizeof(gsup.imsi)); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 139 | gsup.message_type = OSMO_GSUP_MSGT_INSERT_DATA_RESULT; |
| 140 | |
| 141 | osmo_gsup_encode(msg, &gsup); |
| 142 | |
| 143 | imsi_op_release(io); |
| 144 | |
Neels Hofmeyr | 814fef0 | 2016-12-08 21:19:57 +0100 | [diff] [blame] | 145 | return gsup_client_send(g_gc, msg); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | /* receive an incoming GSUP message */ |
| 149 | static void imsi_op_rx_gsup(struct imsi_op *io, const struct osmo_gsup_message *gsup) |
| 150 | { |
| 151 | int is_error = 0; |
| 152 | |
| 153 | if (OSMO_GSUP_IS_MSGT_ERROR(gsup->message_type)) { |
| 154 | imsi_op_stats[io->type].num_rx_error++; |
| 155 | is_error = 1; |
| 156 | } else |
| 157 | imsi_op_stats[io->type].num_rx_success++; |
| 158 | |
| 159 | switch (io->type) { |
| 160 | case IMSI_OP_SAI: |
| 161 | printf("%s; SAI Response%s\n", io->imsi, is_error ? ": ERROR" : ""); |
| 162 | /* now that we have auth tuples, request LU */ |
| 163 | req_loc_upd(io->imsi); |
| 164 | imsi_op_release(io); |
| 165 | break; |
| 166 | case IMSI_OP_LU: |
| 167 | printf("%s; LU Response%s\n", io->imsi, is_error ? ": ERROR" : ""); |
| 168 | imsi_op_release(io); |
| 169 | break; |
| 170 | case IMSI_OP_ISD: |
| 171 | printf("%s; ISD Request%s\n", io->imsi, is_error ? ": ERROR" : ""); |
| 172 | resp_isd(io); |
| 173 | break; |
| 174 | default: |
| 175 | printf("%s: Unknown\n", io->imsi); |
| 176 | imsi_op_release(io); |
| 177 | break; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | static int op_type_by_gsup_msgt(enum osmo_gsup_message_type msg_type) |
| 182 | { |
| 183 | switch (msg_type) { |
| 184 | case OSMO_GSUP_MSGT_SEND_AUTH_INFO_RESULT: |
| 185 | case OSMO_GSUP_MSGT_SEND_AUTH_INFO_ERROR: |
| 186 | return IMSI_OP_SAI; |
| 187 | case OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: |
| 188 | case OSMO_GSUP_MSGT_UPDATE_LOCATION_ERROR: |
| 189 | return IMSI_OP_LU; |
| 190 | case OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: |
| 191 | return IMSI_OP_ISD; |
| 192 | default: |
| 193 | printf("Unknown GSUP msg_type %u\n", msg_type); |
| 194 | return -1; |
| 195 | } |
| 196 | } |
| 197 | |
Neels Hofmeyr | 814fef0 | 2016-12-08 21:19:57 +0100 | [diff] [blame] | 198 | static int gsupc_read_cb(struct gsup_client *gsupc, struct msgb *msg) |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 199 | { |
| 200 | struct osmo_gsup_message gsup_msg = {0}; |
| 201 | struct imsi_op *io; |
| 202 | int rc; |
| 203 | |
| 204 | DEBUGP(DGPRS, "Rx GSUP %s\n", osmo_hexdump(msgb_l2(msg), msgb_l2len(msg))); |
| 205 | |
| 206 | rc = osmo_gsup_decode(msgb_l2(msg), msgb_l2len(msg), &gsup_msg); |
| 207 | if (rc < 0) |
| 208 | return rc; |
| 209 | |
| 210 | if (!gsup_msg.imsi[0]) |
| 211 | return -1; |
| 212 | |
| 213 | rc = op_type_by_gsup_msgt(gsup_msg.message_type); |
| 214 | if (rc < 0) |
| 215 | return rc; |
| 216 | |
| 217 | switch (rc) { |
| 218 | case IMSI_OP_SAI: |
| 219 | case IMSI_OP_LU: |
| 220 | io = imsi_op_find(gsup_msg.imsi, rc); |
| 221 | if (!io) |
| 222 | return -1; |
| 223 | break; |
| 224 | case IMSI_OP_ISD: |
| 225 | /* ISD is an inbound transaction */ |
| 226 | io = imsi_op_alloc(g_gc, gsup_msg.imsi, IMSI_OP_ISD); |
| 227 | break; |
| 228 | } |
| 229 | |
| 230 | imsi_op_rx_gsup(io, &gsup_msg); |
| 231 | msgb_free(msg); |
| 232 | |
| 233 | return 0; |
| 234 | } |
| 235 | |
| 236 | static void print_report(void) |
| 237 | { |
| 238 | unsigned int i; |
| 239 | |
| 240 | for (i = 0; i < ARRAY_SIZE(imsi_op_stats); i++) { |
| 241 | struct imsi_op_stats *st = &imsi_op_stats[i]; |
| 242 | const char *name = get_value_string(imsi_op_names, i); |
| 243 | printf("%s: %u alloc, %u released, %u success, %u error , %u tout\n", |
| 244 | name, st->num_alloc, st->num_released, st->num_rx_success, |
| 245 | st->num_rx_error, st->num_timeout); |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | static void sig_cb(int sig) |
| 250 | { |
| 251 | switch (sig) { |
| 252 | case SIGINT: |
| 253 | print_report(); |
| 254 | exit(0); |
| 255 | break; |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | void *tall_bsc_ctx = NULL; |
| 260 | |
| 261 | /* default categories */ |
Neels Hofmeyr | ef02278 | 2016-12-08 21:28:29 +0100 | [diff] [blame] | 262 | static struct log_info_cat default_categories[] = { |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 263 | }; |
| 264 | |
Neels Hofmeyr | ef02278 | 2016-12-08 21:28:29 +0100 | [diff] [blame] | 265 | static const struct log_info gsup_test_client_log_info = { |
| 266 | .cat = default_categories, |
| 267 | .num_cat = ARRAY_SIZE(default_categories), |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 268 | }; |
| 269 | |
| 270 | int main(int argc, char **argv) |
| 271 | { |
| 272 | unsigned long long i; |
| 273 | char *server_host = "127.0.0.1"; |
| 274 | uint16_t server_port = 2222; |
| 275 | |
Neels Hofmeyr | ef02278 | 2016-12-08 21:28:29 +0100 | [diff] [blame] | 276 | osmo_init_logging(&gsup_test_client_log_info); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 277 | |
Neels Hofmeyr | 814fef0 | 2016-12-08 21:19:57 +0100 | [diff] [blame] | 278 | g_gc = gsup_client_create(server_host, server_port, gsupc_read_cb, |
| 279 | NULL); |
Harald Welte | 4f8e34b | 2016-05-06 23:27:38 +0200 | [diff] [blame] | 280 | |
| 281 | |
| 282 | signal(SIGINT, sig_cb); |
| 283 | |
| 284 | for (i = 0; i < 10000; i++) { |
| 285 | unsigned long long imsi = 901790000000000 + i; |
| 286 | char imsi_buf[17]; |
| 287 | snprintf(imsi_buf, sizeof(imsi_buf), "%015llu", imsi); |
| 288 | req_auth_info(imsi_buf); |
| 289 | osmo_select_main(0); |
| 290 | } |
| 291 | |
| 292 | while (1) { |
| 293 | osmo_select_main(0); |
| 294 | } |
| 295 | |
| 296 | print_report(); |
| 297 | exit(0); |
| 298 | } |