[PATCH 1/2] gb: Test sending messages to SGSN

This adds tests for the gprs_ns_sendmsg() function. For this it merges back functions from the gbproxy test. Sponsored-by: On-Waves ehf --- tests/gb/gprs_ns_test.c | 314 ++++++++++++++++++++++++++++++++++++++++++---- tests/gb/gprs_ns_test.ok | 141 +++++++++++++++++---- 2 files changed, 402 insertions(+), 53 deletions(-) diff --git a/tests/gb/gprs_ns_test.c b/tests/gb/gprs_ns_test.c index d7b769d..0921b61 100644 --- a/tests/gb/gprs_ns_test.c +++ b/tests/gb/gprs_ns_test.c @@ -26,6 +26,152 @@ #include <osmocom/gprs/gprs_ns.h> #include <osmocom/gprs/gprs_bssgp.h> +#define REMOTE_BSS_ADDR 0x01020304 +#define REMOTE_SGSN_ADDR 0x05060708 + +#define SGSN_NSEI 0x0100 + +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); + +static void send_ns_reset(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, + enum ns_cause cause, uint16_t nsvci, uint16_t nsei) +{ + /* GPRS Network Service, PDU type: NS_RESET, + */ + unsigned char msg[12] = { + 0x02, 0x00, 0x81, 0x01, 0x01, 0x82, 0x11, 0x22, + 0x04, 0x82, 0x11, 0x22 + }; + + msg[3] = cause; + msg[6] = nsvci / 256; + msg[7] = nsvci % 256; + msg[10] = nsei / 256; + msg[11] = nsei % 256; + + gprs_process_message(nsi, "RESET", src_addr, msg, sizeof(msg)); +} + +static void send_ns_reset_ack(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, + uint16_t nsvci, uint16_t nsei) +{ + /* GPRS Network Service, PDU type: NS_RESET_ACK, + */ + unsigned char msg[9] = { + 0x03, 0x01, 0x82, 0x11, 0x22, + 0x04, 0x82, 0x11, 0x22 + }; + + msg[3] = nsvci / 256; + msg[4] = nsvci % 256; + msg[7] = nsei / 256; + msg[8] = nsei % 256; + + gprs_process_message(nsi, "RESET_ACK", src_addr, msg, sizeof(msg)); +} + +static void send_ns_alive(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) +{ + /* GPRS Network Service, PDU type: NS_ALIVE */ + unsigned char msg[1] = { + 0x0a + }; + + gprs_process_message(nsi, "ALIVE", src_addr, msg, sizeof(msg)); +} + +static void send_ns_alive_ack(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) +{ + /* GPRS Network Service, PDU type: NS_ALIVE_ACK */ + unsigned char msg[1] = { + 0x0b + }; + + gprs_process_message(nsi, "ALIVE_ACK", src_addr, msg, sizeof(msg)); +} + +static void send_ns_unblock(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) +{ + /* GPRS Network Service, PDU type: NS_UNBLOCK */ + unsigned char msg[1] = { + 0x06 + }; + + gprs_process_message(nsi, "UNBLOCK", src_addr, msg, sizeof(msg)); +} + +static void send_ns_unblock_ack(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr) +{ + /* GPRS Network Service, PDU type: NS_UNBLOCK_ACK */ + unsigned char msg[1] = { + 0x07 + }; + + gprs_process_message(nsi, "UNBLOCK_ACK", src_addr, msg, sizeof(msg)); +} + +static void send_ns_unitdata(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, + uint16_t nsbvci, + const unsigned char *bssgp_msg, size_t bssgp_msg_size) +{ + /* GPRS Network Service, PDU type: NS_UNITDATA */ + unsigned char msg[4096] = { + 0x00, 0x00, 0x00, 0x00 + }; + + OSMO_ASSERT(bssgp_msg_size <= sizeof(msg) - 4); + + msg[2] = nsbvci / 256; + msg[3] = nsbvci % 256; + memcpy(msg + 4, bssgp_msg, bssgp_msg_size); + + gprs_process_message(nsi, "UNITDATA", src_addr, msg, bssgp_msg_size + 4); +} + +static void send_bssgp_reset(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, + uint16_t bvci) +{ + /* GPRS Network Service, PDU type: NS_UNITDATA, BVCI 0 + * BSSGP RESET */ + unsigned char msg[22] = { + 0x22, 0x04, 0x82, 0x4a, + 0x2e, 0x07, 0x81, 0x08, 0x08, 0x88, 0x10, 0x20, + 0x30, 0x40, 0x50, 0x60, 0x10, 0x00 + }; + + msg[3] = bvci / 256; + msg[4] = bvci % 256; + + send_ns_unitdata(nsi, src_addr, 0, msg, sizeof(msg)); +} + +static void setup_ns(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, + uint16_t nsvci, uint16_t nsei) +{ + printf("Setup NS-VC: remote 0x%08x:%d, " + "NSVCI 0x%04x(%d), NSEI 0x%04x(%d)\n\n", + ntohl(src_addr->sin_addr.s_addr), ntohs(src_addr->sin_port), + nsvci, nsvci, nsei, nsei); + + send_ns_reset(nsi, src_addr, NS_CAUSE_OM_INTERVENTION, nsvci, nsei); + send_ns_alive(nsi, src_addr); + send_ns_unblock(nsi, src_addr); + send_ns_alive_ack(nsi, src_addr); +} + +static void setup_bssgp(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, + uint16_t bvci) +{ + printf("Setup BSSGP: remote 0x%08x:%d, " + "BVCI 0x%04x(%d)\n\n", + ntohl(src_addr->sin_addr.s_addr), ntohs(src_addr->sin_port), + bvci, bvci); + + send_bssgp_reset(nsi, src_addr, bvci); +} + /* GPRS Network Service, PDU type: NS_RESET, * Cause: O&M intervention, NS VCI: 0x1122, NSEI 0x1122 */ @@ -110,18 +256,45 @@ ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, typedef ssize_t (*sendto_t)(int, const void *, size_t, int, const struct sockaddr *, socklen_t); static sendto_t real_sendto = NULL; + uint32_t dest_host = htonl(((struct sockaddr_in *)dest_addr)->sin_addr.s_addr); if (!real_sendto) real_sendto = dlsym(RTLD_NEXT, "sendto"); - if (((struct sockaddr_in *)dest_addr)->sin_addr.s_addr != htonl(0x01020304)) + if (dest_host == REMOTE_BSS_ADDR) + printf("MESSAGE to BSS, msg length %d\n%s\n\n", len, osmo_hexdump(buf, len)); + else if (dest_host == REMOTE_SGSN_ADDR) + printf("MESSAGE to SGSN, msg length %d\n%s\n\n", len, osmo_hexdump(buf, len)); + else return real_sendto(sockfd, buf, len, flags, dest_addr, addrlen); - printf("RESPONSE, msg length %d\n%s\n\n", len, osmo_hexdump(buf, len)); - return len; } +/* override */ +int gprs_ns_sendmsg(struct gprs_ns_inst *nsi, struct msgb *msg) +{ + typedef int (*gprs_ns_sendmsg_t)(struct gprs_ns_inst *nsi, struct msgb *msg); + static gprs_ns_sendmsg_t real_gprs_ns_sendmsg = NULL; + uint16_t bvci = msgb_bvci(msg); + uint16_t nsei = msgb_nsei(msg); + + unsigned char *buf = msg->data; + size_t len = msg->len; + + if (!real_gprs_ns_sendmsg) + real_gprs_ns_sendmsg = dlsym(RTLD_NEXT, "gprs_ns_sendmsg"); + + if (nsei == SGSN_NSEI) + printf("NS UNITDATA MESSAGE to SGSN, BVCI 0x%04x, msg length %d\n%s\n\n", + bvci, len, osmo_hexdump(buf, len)); + else + printf("NS UNITDATA MESSAGE to BSS, BVCI 0x%04x, msg length %d\n%s\n\n", + bvci, len, osmo_hexdump(buf, len)); + + return real_gprs_ns_sendmsg(nsi, msg); +} + static void dump_rate_ctr_group(FILE *stream, const char *prefix, struct rate_ctr_group *ctrg) { @@ -217,6 +390,34 @@ static int gprs_process_message(struct gprs_ns_inst *nsi, const char *text, stru return ret; } +static int gprs_send_message(struct gprs_ns_inst *nsi, const char *text, + uint16_t nsei, uint16_t bvci, + const unsigned char* data, size_t data_len) +{ + struct msgb *msg; + int ret; + if (data_len > NS_ALLOC_SIZE - NS_ALLOC_HEADROOM) { + fprintf(stderr, "message too long: %d\n", data_len); + return -1; + } + + msg = gprs_ns_msgb_alloc(); + memmove(msg->data, data, data_len); + msg->l2h = msg->data; + msgb_put(msg, data_len); + + msgb_nsei(msg) = nsei; + msgb_bvci(msg) = bvci; + + printf("SENDING %s to NSEI 0x%04x, BVCI 0x%04x\n", text, nsei, bvci); + + ret = gprs_ns_sendmsg(nsi, msg); + + printf("result (%s) = %d\n\n", text, ret); + + return ret; +} + static void gprs_dump_nsi(struct gprs_ns_inst *nsi) { struct gprs_nsvc *nsvc; @@ -224,71 +425,70 @@ static void gprs_dump_nsi(struct gprs_ns_inst *nsi) printf("Current NS-VCIs:\n"); llist_for_each_entry(nsvc, &nsi->gprs_nsvcs, list) { struct sockaddr_in *peer = &(nsvc->ip.bts_addr); - printf(" VCI 0x%04x, NSEI 0x%04x, peer 0x%08x:%d\n", + printf(" VCI 0x%04x, NSEI 0x%04x, peer 0x%08x:%d%s%s\n", nsvc->nsvci, nsvc->nsei, - ntohl(peer->sin_addr.s_addr), ntohs(peer->sin_port) + ntohl(peer->sin_addr.s_addr), ntohs(peer->sin_port), + nsvc->state & NSE_S_BLOCKED ? ", blocked" : "", + nsvc->state & NSE_S_ALIVE ? "" : ", dead" ); dump_rate_ctr_group(stdout, " ", nsvc->ctrg); } printf("\n"); } -static void test_ns() +static void test_bss_port_changes() { struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); struct sockaddr_in peer[4] = {{0},}; + struct sockaddr_in sgsn_peer= {0}; + + sgsn_peer.sin_family = AF_INET; + sgsn_peer.sin_port = htons(32000); + sgsn_peer.sin_addr.s_addr = htonl(REMOTE_SGSN_ADDR); peer[0].sin_family = AF_INET; peer[0].sin_port = htons(1111); - peer[0].sin_addr.s_addr = htonl(0x01020304); + peer[0].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); peer[1].sin_family = AF_INET; peer[1].sin_port = htons(2222); - peer[1].sin_addr.s_addr = htonl(0x01020304); + peer[1].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); peer[2].sin_family = AF_INET; peer[2].sin_port = htons(3333); - peer[2].sin_addr.s_addr = htonl(0x01020304); + peer[2].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); peer[3].sin_family = AF_INET; peer[3].sin_port = htons(4444); - peer[3].sin_addr.s_addr = htonl(0x01020304); + peer[3].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); - gprs_process_message(nsi, "RESET", &peer[0], - gprs_ns_reset, sizeof(gprs_ns_reset)); + printf("--- Setup, send BSSGP RESET ---\n\n"); + + setup_ns(nsi, &peer[0], 0x1122, 0x1122); gprs_dump_nsi(nsi); - gprs_process_message(nsi, "ALIVE", &peer[0], - gprs_ns_alive, sizeof(gprs_ns_alive)); - gprs_process_message(nsi, "UNBLOCK", &peer[0], - gprs_ns_unblock, sizeof(gprs_ns_unblock)); gprs_process_message(nsi, "BSSGP RESET", &peer[0], gprs_bssgp_reset, sizeof(gprs_bssgp_reset)); printf("--- Peer port changes, RESET, message remains unchanged ---\n\n"); - gprs_process_message(nsi, "RESET", &peer[1], - gprs_ns_reset, sizeof(gprs_ns_reset)); + send_ns_reset(nsi, &peer[1], NS_CAUSE_OM_INTERVENTION, 0x1122, 0x1122); gprs_dump_nsi(nsi); printf("--- Peer port changes, RESET, VCI changes ---\n\n"); - gprs_process_message(nsi, "RESET", &peer[2], - gprs_ns_reset_vci2, sizeof(gprs_ns_reset_vci2)); + send_ns_reset(nsi, &peer[2], NS_CAUSE_OM_INTERVENTION, 0x3344, 0x1122); gprs_dump_nsi(nsi); printf("--- Peer port changes, RESET, NSEI changes ---\n\n"); - gprs_process_message(nsi, "RESET", &peer[3], - gprs_ns_reset_nsei2, sizeof(gprs_ns_reset_nsei2)); + send_ns_reset(nsi, &peer[3], NS_CAUSE_OM_INTERVENTION, 0x1122, 0x3344); gprs_dump_nsi(nsi); printf("--- Peer port 3333, RESET, VCI is changed back ---\n\n"); - gprs_process_message(nsi, "RESET", &peer[2], - gprs_ns_reset, sizeof(gprs_ns_reset)); + send_ns_reset(nsi, &peer[2], NS_CAUSE_OM_INTERVENTION, 0x1122, 0x1122); gprs_dump_nsi(nsi); printf("--- Peer port 4444, RESET, NSEI is changed back ---\n\n"); - gprs_process_message(nsi, "RESET", &peer[3], - gprs_ns_reset, sizeof(gprs_ns_reset)); + send_ns_reset(nsi, &peer[3], NS_CAUSE_OM_INTERVENTION, 0x1122, 0x1122); gprs_dump_nsi(nsi); gprs_ns_destroy(nsi); @@ -296,6 +496,65 @@ static void test_ns() } +static void test_sgsn_output() +{ + struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); + struct sockaddr_in sgsn_peer= {0}; + + sgsn_peer.sin_family = AF_INET; + sgsn_peer.sin_port = htons(32000); + sgsn_peer.sin_addr.s_addr = htonl(REMOTE_SGSN_ADDR); + + gprs_dump_nsi(nsi); + + printf("--- Send message to SGSN ---\n\n"); + + gprs_send_message(nsi, "BSSGP RESET", SGSN_NSEI, 0, + gprs_bssgp_reset+4, sizeof(gprs_bssgp_reset)-4); + + printf("--- Setup dead connection to SGSN ---\n\n"); + + gprs_ns_nsip_connect(nsi, &sgsn_peer, SGSN_NSEI, SGSN_NSEI+1); + gprs_dump_nsi(nsi); + + printf("--- Send message to SGSN ---\n\n"); + + gprs_send_message(nsi, "BSSGP RESET", SGSN_NSEI, 0, + gprs_bssgp_reset+4, sizeof(gprs_bssgp_reset)-4); + + printf("--- Make connection to SGSN alive ---\n\n"); + + send_ns_reset_ack(nsi, &sgsn_peer, SGSN_NSEI+1, SGSN_NSEI); + send_ns_alive_ack(nsi, &sgsn_peer); + gprs_dump_nsi(nsi); + + printf("--- Send message to SGSN ---\n\n"); + + gprs_send_message(nsi, "BSSGP RESET", SGSN_NSEI, 0, + gprs_bssgp_reset+4, sizeof(gprs_bssgp_reset)-4); + + printf("--- Unblock connection to SGSN ---\n\n"); + + send_ns_unblock_ack(nsi, &sgsn_peer); + send_ns_alive(nsi, &sgsn_peer); + gprs_dump_nsi(nsi); + + printf("--- Send message to SGSN ---\n\n"); + + gprs_send_message(nsi, "BSSGP RESET", SGSN_NSEI, 0, + gprs_bssgp_reset+4, sizeof(gprs_bssgp_reset)-4); + + printf("--- Send empty message with BVCI to SGSN ---\n\n"); + + gprs_send_message(nsi, "[empty]", SGSN_NSEI, 0x0102, + gprs_bssgp_reset, 0); + + + gprs_ns_destroy(nsi); + nsi = NULL; +} + + int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx) { return -1; @@ -311,7 +570,8 @@ int main(int argc, char **argv) osmo_signal_register_handler(SS_L_NS, &test_signal, NULL); printf("===== NS protocol test START\n"); - test_ns(); + test_bss_port_changes(); + test_sgsn_output(); printf("===== NS protocol test END\n\n"); exit(EXIT_SUCCESS); diff --git a/tests/gb/gprs_ns_test.ok b/tests/gb/gprs_ns_test.ok index 7be84ef..7366278 100644 --- a/tests/gb/gprs_ns_test.ok +++ b/tests/gb/gprs_ns_test.ok @@ -1,23 +1,24 @@ ===== NS protocol test START +--- Setup, send BSSGB RESET --- + +Setup NS-VC: remote 0x01020304:1111, NSVCI 0x1122(4386), NSEI 0x1122(4386) + PROCESSING RESET from 0x01020304:1111 02 00 81 01 01 82 11 22 04 82 11 22 ==> got signal NS_RESET, NS-VC 0x1122/1.2.3.4:1111 -RESPONSE, msg length 9 +MESSAGE to BSS, msg length 9 03 01 82 11 22 04 82 11 22 -RESPONSE, msg length 1 +MESSAGE to BSS, msg length 1 0a result (RESET) = 9 -Current NS-VCIs: - VCI 0x1122, NSEI 0x1122, peer 0x01020304:1111 - PROCESSING ALIVE from 0x01020304:1111 0a -RESPONSE, msg length 1 +MESSAGE to BSS, msg length 1 0b result (ALIVE) = 1 @@ -26,11 +27,19 @@ PROCESSING UNBLOCK from 0x01020304:1111 06 ==> got signal NS_UNBLOCK, NS-VC 0x1122/1.2.3.4:1111 -RESPONSE, msg length 1 +MESSAGE to BSS, msg length 1 07 result (UNBLOCK) = 1 +PROCESSING ALIVE_ACK from 0x01020304:1111 +0b + +result (ALIVE_ACK) = 0 + +Current NS-VCIs: + VCI 0x1122, NSEI 0x1122, peer 0x01020304:1111 + PROCESSING BSSGP RESET from 0x01020304:1111 00 00 00 00 22 04 82 4a 2e 07 81 08 08 88 10 20 30 40 50 60 10 00 @@ -45,16 +54,16 @@ PROCESSING RESET from 0x01020304:2222 02 00 81 01 01 82 11 22 04 82 11 22 ==> got signal NS_RESET, NS-VC 0x1122/1.2.3.4:2222 -RESPONSE, msg length 9 +MESSAGE to BSS, msg length 9 03 01 82 11 22 04 82 11 22 -RESPONSE, msg length 1 +MESSAGE to BSS, msg length 1 0a result (RESET) = 9 Current NS-VCIs: - VCI 0x1122, NSEI 0x1122, peer 0x01020304:2222 + VCI 0x1122, NSEI 0x1122, peer 0x01020304:2222, blocked --- Peer port changes, RESET, VCI changes --- @@ -62,17 +71,17 @@ PROCESSING RESET from 0x01020304:3333 02 00 81 01 01 82 33 44 04 82 11 22 ==> got signal NS_RESET, NS-VC 0x3344/1.2.3.4:3333 -RESPONSE, msg length 9 +MESSAGE to BSS, msg length 9 03 01 82 33 44 04 82 11 22 -RESPONSE, msg length 1 +MESSAGE to BSS, msg length 1 0a result (RESET) = 9 Current NS-VCIs: - VCI 0x3344, NSEI 0x1122, peer 0x01020304:3333 - VCI 0x1122, NSEI 0x1122, peer 0x01020304:2222 + VCI 0x3344, NSEI 0x1122, peer 0x01020304:3333, blocked + VCI 0x1122, NSEI 0x1122, peer 0x01020304:2222, blocked --- Peer port changes, RESET, NSEI changes --- @@ -80,17 +89,17 @@ PROCESSING RESET from 0x01020304:4444 02 00 81 01 01 82 11 22 04 82 33 44 ==> got signal NS_RESET, NS-VC 0x1122/1.2.3.4:4444 -RESPONSE, msg length 9 +MESSAGE to BSS, msg length 9 03 01 82 11 22 04 82 33 44 -RESPONSE, msg length 1 +MESSAGE to BSS, msg length 1 0a result (RESET) = 9 Current NS-VCIs: - VCI 0x3344, NSEI 0x1122, peer 0x01020304:3333 - VCI 0x1122, NSEI 0x3344, peer 0x01020304:4444 + VCI 0x3344, NSEI 0x1122, peer 0x01020304:3333, blocked + VCI 0x1122, NSEI 0x3344, peer 0x01020304:4444, blocked NS-VC changed NSEI : 1 --- Peer port 3333, RESET, VCI is changed back --- @@ -100,17 +109,17 @@ PROCESSING RESET from 0x01020304:3333 ==> got signal NS_REPLACED: 0x1122/1.2.3.4:4444 -> 0x3344/1.2.3.4:3333 ==> got signal NS_RESET, NS-VC 0x1122/1.2.3.4:3333 -RESPONSE, msg length 9 +MESSAGE to BSS, msg length 9 03 01 82 11 22 04 82 11 22 -RESPONSE, msg length 1 +MESSAGE to BSS, msg length 1 0a result (RESET) = 9 Current NS-VCIs: - VCI 0x3344, NSEI 0x1122, peer 0x00000000:0 - VCI 0x1122, NSEI 0x1122, peer 0x01020304:3333 + VCI 0x3344, NSEI 0x1122, peer 0x00000000:0, blocked + VCI 0x1122, NSEI 0x1122, peer 0x01020304:3333, blocked NS-VC replaced other count: 1 NS-VC changed NSEI : 2 @@ -120,19 +129,99 @@ PROCESSING RESET from 0x01020304:4444 02 00 81 01 01 82 11 22 04 82 11 22 ==> got signal NS_RESET, NS-VC 0x1122/1.2.3.4:4444 -RESPONSE, msg length 9 +MESSAGE to BSS, msg length 9 03 01 82 11 22 04 82 11 22 -RESPONSE, msg length 1 +MESSAGE to BSS, msg length 1 0a result (RESET) = 9 Current NS-VCIs: - VCI 0x3344, NSEI 0x1122, peer 0x00000000:0 - VCI 0x1122, NSEI 0x1122, peer 0x01020304:4444 + VCI 0x3344, NSEI 0x1122, peer 0x00000000:0, blocked + VCI 0x1122, NSEI 0x1122, peer 0x01020304:4444, blocked + NS-VC replaced other count: 1 + NS-VC changed NSEI : 2 + +--- Send message to SGSN --- + +SENDING BSSGP RESET to NSEI 0x0100, BVCI 0x0000 +NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 18 +22 04 82 4a 2e 07 81 08 08 88 10 20 30 40 50 60 10 00 + +result (BSSGP RESET) = -22 + +--- Setup blocked connection to SGSN --- + +MESSAGE to SGSN, msg length 12 +02 00 81 01 01 82 01 01 04 82 01 00 + +PROCESSING RESET_ACK from 0x05060708:32000 +03 01 82 01 01 04 82 01 00 + +MESSAGE to SGSN, msg length 1 +0a + +result (RESET_ACK) = 1 + +PROCESSING ALIVE_ACK from 0x05060708:32000 +0b + +MESSAGE to SGSN, msg length 1 +06 + +result (ALIVE_ACK) = 1 + +--- Send message to SGSN --- + +SENDING BSSGP RESET to NSEI 0x0100, BVCI 0x0000 +NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 18 +22 04 82 4a 2e 07 81 08 08 88 10 20 30 40 50 60 10 00 + +MESSAGE to SGSN, msg length 22 +00 00 00 00 22 04 82 4a 2e 07 81 08 08 88 10 20 30 40 50 60 10 00 + +result (BSSGP RESET) = 22 + +--- Unblock connection to SGSN --- + +PROCESSING UNBLOCK_ACK from 0x05060708:32000 +07 + +==> got signal NS_UNBLOCK, NS-VC 0x0101/5.6.7.8:32000 +result (UNBLOCK_ACK) = 0 + +PROCESSING ALIVE from 0x05060708:32000 +0a + +MESSAGE to SGSN, msg length 1 +0b + +result (ALIVE) = 1 + +Current NS-VCIs: + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 + VCI 0x3344, NSEI 0x1122, peer 0x00000000:0, blocked + VCI 0x1122, NSEI 0x1122, peer 0x01020304:4444, blocked NS-VC replaced other count: 1 NS-VC changed NSEI : 2 +--- Send message to SGSN --- + +SENDING BSSGP RESET to NSEI 0x0100, BVCI 0x0000 +NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 18 +22 04 82 4a 2e 07 81 08 08 88 10 20 30 40 50 60 10 00 + +result (BSSGP RESET) = -16 + +--- Send empty message with BVCI to SGSN --- + +SENDING [empty] to NSEI 0x0100, BVCI 0x0102 +NS UNITDATA MESSAGE to SGSN, BVCI 0x0102, msg length 0 + + +result ([empty]) = -16 + ===== NS protocol test END -- 1.7.9.5