OpenBSC October 2013

openbsc@lists.osmocom.org

21 participants
45 discussions

[PATCH 1/3] gb/vty: Perform NS-VC operations based on NS-VCI

by Jacob Erlbeck

This adds a 'nsvc nsvci <0-65535> (block|unblock|reset)' vty command. It selects the NS-VC based on the nsvci instead of using the first with a matching NSEI, like it is done when the 'nsei' keyword is used instead. Sponsored-by: On-Waves ehf --- src/gb/gprs_ns_vty.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/src/gb/gprs_ns_vty.c b/src/gb/gprs_ns_vty.c index a2e7beb..f33fd0b 100644 --- a/src/gb/gprs_ns_vty.c +++ b/src/gb/gprs_ns_vty.c @@ -499,21 +499,29 @@ DEFUN(cfg_frgre_enable, cfg_frgre_enable_cmd, } DEFUN(nsvc_nsei, nsvc_nsei_cmd, - "nsvc nsei <0-65535> (block|unblock|reset)", + "nsvc (nsei|nsvci) <0-65535> (block|unblock|reset)", "Perform an operation on a NSVC\n" "NSEI to identify NS-VC Identifier (NS-VCI)\n" + "NS-VC Identifier (NS-VCI)\n" "The NSEI\n" "Initiate BLOCK procedure\n" "Initiate UNBLOCK procedure\n" "Initiate RESET procedure\n") { - uint16_t nsvci = atoi(argv[0]); - const char *operation = argv[1]; + const char *id_type = argv[0]; + uint16_t id = atoi(argv[1]); + const char *operation = argv[2]; struct gprs_nsvc *nsvc; - nsvc = gprs_nsvc_by_nsei(vty_nsi, nsvci); + if (!strcmp(id_type, "nsei")) + nsvc = gprs_nsvc_by_nsei(vty_nsi, id); + else if (!strcmp(id_type, "nsvci")) + nsvc = gprs_nsvc_by_nsvci(vty_nsi, id); + else + return CMD_WARNING; + if (!nsvc) { - vty_out(vty, "No such NSVCI (%u)%s", nsvci, VTY_NEWLINE); + vty_out(vty, "No such %s (%u)%s", id_type, id, VTY_NEWLINE); return CMD_WARNING; } -- 1.7.9.5

11 years, 8 months

Re: Hard reset NanoBTS after forgetting static IP

by Daniel Fligg

I have come across a nanoBTS 165AU but since is used and not tested from the previous owner, I guess it has set a static IP. After turned on is booting (RED light) and then remains (ORANGE not flashing) even if the eth is connected to the router. Based on observation, constant blinking orange seems to indicate the layer 2 link isn't up (eg it's powered but Ethernet isn't connected). Solid orange is good. Once it's fully booted it seems to be solid orange with a very quick flash off once a second seems to indicate it's trying to find the BSC > At the moment I am trying with ipaccess-find and BtsInstaller to find in on my LAN . > Unfortunately it is not answering and is not even getting an IP from the router by the DHCP daemon. > > ipaccess-find / btsinstaller only ever seem to find my BSCs when the machine they're running on is on the same subnet. The easiest way to track down a rogue bts is to connect it directly to a spare network port in the pc and then run wireshark on it. On boot my BTS sends a number of dhcp inform requests broadcasting it's IP and then starts blasting packets at the BSC address. Hope this helps,

11 years, 8 months

[PATCH] gb: Fix gprs_nsvc_delete() to free ctr group

by Jacob Erlbeck

This fixes a SEGV error that happens the next time the statistics are updated. Addresses: Program terminated with signal 11, Segmentation fault. #0 0xb7711fa5 in rate_ctr_group_intv (grp=<optimized out>) at rate_ctr.c:107 107 for (i = 0; i < grp->desc->num_ctr; i++) { #0 0xb7711fa5 in rate_ctr_group_intv (grp=<optimized out>) at rate_ctr.c:107 #1 rate_ctr_timer_cb (data=0x0) at rate_ctr.c:129 #2 0xb770ec59 in osmo_timers_update () at timer.c:243 #3 0xb770ef7a in osmo_select_main (polling=0) at select.c:133 #4 0x08049987 in main (argc=3, argv=0xbfba8084) at gb_proxy_main.c:306 Sponsored-by: On-Waves ehf --- src/gb/gprs_ns.c | 1 + tests/gb/gprs_ns_test.c | 43 +++++++++++++++++++++++ tests/gb/gprs_ns_test.ok | 86 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 130 insertions(+) diff --git a/src/gb/gprs_ns.c b/src/gb/gprs_ns.c index b50a700..d71707b 100644 --- a/src/gb/gprs_ns.c +++ b/src/gb/gprs_ns.c @@ -215,6 +215,7 @@ void gprs_nsvc_delete(struct gprs_nsvc *nsvc) if (osmo_timer_pending(&nsvc->timer)) osmo_timer_del(&nsvc->timer); llist_del(&nsvc->list); + rate_ctr_group_free(nsvc->ctrg); talloc_free(nsvc); } diff --git a/tests/gb/gprs_ns_test.c b/tests/gb/gprs_ns_test.c index d2d2825..f8a1f27 100644 --- a/tests/gb/gprs_ns_test.c +++ b/tests/gb/gprs_ns_test.c @@ -8,6 +8,7 @@ #include <stdio.h> #include <stdlib.h> +#include <unistd.h> #include <stdint.h> #include <string.h> #include <getopt.h> @@ -445,6 +446,45 @@ static void gprs_dump_nsi(struct gprs_ns_inst *nsi) printf("\n"); } +static void test_nsvc() +{ + struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); + struct sockaddr_in peer[1] = {{0},}; + struct gprs_nsvc *nsvc; + int i; + + peer[0].sin_family = AF_INET; + peer[0].sin_port = htons(1111); + peer[0].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); + + for (i=0; i<4; ++i) { + printf("--- Create via RESET (round %d) ---\n\n", i); + + send_ns_reset(nsi, &peer[0], NS_CAUSE_OM_INTERVENTION, + 0x1001, 0x1000); + gprs_dump_nsi(nsi); + + printf("--- Delete nsvc object (round %d)---\n\n", i); + + nsvc = gprs_nsvc_by_nsvci(nsi, 0x1001); + OSMO_ASSERT(nsvc != NULL); + gprs_nsvc_delete(nsvc); + + gprs_dump_nsi(nsi); + } + + gprs_ns_destroy(nsi); + nsi = NULL; + + printf("--- Process timers ---\n\n"); + /* wait for rate_ctr_timer expiry */ + usleep(1100000); + /* ensure termination */ + alarm(2); + osmo_timers_update(); + alarm(0); +} + static void test_bss_port_changes() { struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); @@ -726,9 +766,12 @@ int main(int argc, char **argv) log_set_print_filename(osmo_stderr_target, 0); log_set_log_level(osmo_stderr_target, LOGL_INFO); + rate_ctr_init(NULL); + setlinebuf(stdout); printf("===== NS protocol test START\n"); + test_nsvc(); test_bss_port_changes(); test_bss_reset_ack(); test_sgsn_reset(); diff --git a/tests/gb/gprs_ns_test.ok b/tests/gb/gprs_ns_test.ok index b3c3236..1566824 100644 --- a/tests/gb/gprs_ns_test.ok +++ b/tests/gb/gprs_ns_test.ok @@ -1,4 +1,90 @@ ===== NS protocol test START +--- Create via RESET (round 0) --- + +PROCESSING RESET from 0x01020304:1111 +02 00 81 01 01 82 10 01 04 82 10 00 + +==> got signal NS_RESET, NS-VC 0x1001/1.2.3.4:1111 +MESSAGE to BSS, msg length 9 +03 01 82 10 01 04 82 10 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +Current NS-VCIs: + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111, blocked + +--- Delete nsvc object (round 0)--- + +Current NS-VCIs: + +--- Create via RESET (round 1) --- + +PROCESSING RESET from 0x01020304:1111 +02 00 81 01 01 82 10 01 04 82 10 00 + +==> got signal NS_RESET, NS-VC 0x1001/1.2.3.4:1111 +MESSAGE to BSS, msg length 9 +03 01 82 10 01 04 82 10 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +Current NS-VCIs: + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111, blocked + +--- Delete nsvc object (round 1)--- + +Current NS-VCIs: + +--- Create via RESET (round 2) --- + +PROCESSING RESET from 0x01020304:1111 +02 00 81 01 01 82 10 01 04 82 10 00 + +==> got signal NS_RESET, NS-VC 0x1001/1.2.3.4:1111 +MESSAGE to BSS, msg length 9 +03 01 82 10 01 04 82 10 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +Current NS-VCIs: + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111, blocked + +--- Delete nsvc object (round 2)--- + +Current NS-VCIs: + +--- Create via RESET (round 3) --- + +PROCESSING RESET from 0x01020304:1111 +02 00 81 01 01 82 10 01 04 82 10 00 + +==> got signal NS_RESET, NS-VC 0x1001/1.2.3.4:1111 +MESSAGE to BSS, msg length 9 +03 01 82 10 01 04 82 10 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +Current NS-VCIs: + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111, blocked + +--- Delete nsvc object (round 3)--- + +Current NS-VCIs: + +--- Process timers --- + --- Setup, send BSSGP RESET --- Setup NS-VC: remote 0x01020304:1111, NSVCI 0x1122(4386), NSEI 0x1122(4386) -- 1.7.9.5

11 years, 8 months

OpenBSC with USRP2 : rsl.c error

by Joe Ge

Hi all, I know this problem has been dealt previously in a minor variation but please help me out here. I'm trying to configure OpenBSC using the USRP N210 device and followed the same network from scratch installation. I got up to the part where sysmobts gives the error and corrected it by editing the makefile. But unlike others my 'make' command is giving me an error in the rsl.c file. make[2]: Entering directory `/home/prabu/OpenBSC-OpenBTS/osmo-bts/src/common' CC rsl.o rsl.c:140:2: warning: #warning merge lchan_lookup with OpenBSC [-Wcpp] rsl.c: In function ‘rsl_rx_chan_activ’: rsl.c:779:53: error: ‘struct gsm_lchan’ has no member named ‘mr_bts_lv’ rsl.c:783:15: error: ‘struct gsm_lchan’ has no member named ‘mr_bts_lv’ rsl.c: In function ‘rsl_rx_mode_modif’: rsl.c:1028:53: error: ‘struct gsm_lchan’ has no member named ‘mr_bts_lv’ rsl.c:1032:15: error: ‘struct gsm_lchan’ has no member named ‘mr_bts_lv’ make[2]: *** [rsl.o] Error 1 make[2]: Leaving directory `/home/prabu/OpenBSC-OpenBTS/osmo-bts/src/common' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/prabu/OpenBSC-OpenBTS/osmo-bts/src' make: *** [all-recursive] Error 1 Can someone please help me out in what this error deals with. Or people who successfully completed the installation could tell me what they did differently Regards, Jijo

11 years, 8 months

[PATCH] gb/vty: Fix the VTY node string for L_NS_NODE

by Jacob Erlbeck

Use 'config-ns' instead of plain 'ns' and append a blank after the '#' to make the vty python test script work. Sponsored-by: On-Waves ehf --- src/gb/gprs_ns_vty.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/gb/gprs_ns_vty.c b/src/gb/gprs_ns_vty.c index f33fd0b..73277f8 100644 --- a/src/gb/gprs_ns_vty.c +++ b/src/gb/gprs_ns_vty.c @@ -71,7 +71,7 @@ static void log_set_nsvc_filter(struct log_target *target, static struct cmd_node ns_node = { L_NS_NODE, - "%s(ns)#", + "%s(config-ns)# ", 1, }; -- 1.7.9.5

11 years, 8 months

[PATCH 1/2] gbproxy: Test invalid BVCI from SGSN

by Jacob Erlbeck

This adds a test with a UNITDATA SGSN message that is addressed to an invalid (unknown) BVCI. The test shows, that the message is echoed to the SGSN. Sponsored-by: On-Waves ehf --- openbsc/include/openbsc/gb_proxy.h | 1 + openbsc/src/gprs/gb_proxy.c | 36 ++++++++++++++++++++++++++++++++- openbsc/tests/gbproxy/gbproxy_test.c | 8 ++++++++ openbsc/tests/gbproxy/gbproxy_test.ok | 18 +++++++++++++++++ 4 files changed, 62 insertions(+), 1 deletion(-) diff --git a/openbsc/include/openbsc/gb_proxy.h b/openbsc/include/openbsc/gb_proxy.h index 82e47d5..7b14a09 100644 --- a/openbsc/include/openbsc/gb_proxy.h +++ b/openbsc/include/openbsc/gb_proxy.h @@ -35,5 +35,6 @@ int gbprox_signal(unsigned int subsys, unsigned int signal, /* Reset all persistent NS-VC's */ int gbprox_reset_persistent_nsvcs(struct gprs_ns_inst *nsi); +int gbprox_dump_global(FILE *stream, int indent, int verbose); int gbprox_dump_peers(FILE *stream, int indent, int verbose); #endif diff --git a/openbsc/src/gprs/gb_proxy.c b/openbsc/src/gprs/gb_proxy.c index ddc9e0a..a25a9f5 100644 --- a/openbsc/src/gprs/gb_proxy.c +++ b/openbsc/src/gprs/gb_proxy.c @@ -800,6 +800,37 @@ int gbprox_signal(unsigned int subsys, unsigned int signal, return 0; } +int gbprox_dump_global(FILE *stream, int indent, int verbose) +{ + unsigned int i; + const struct rate_ctr_group_desc *desc; + int rc; + + rc = fprintf(stream, "%*sGbproxy global:\n", indent, ""); + if (rc < 0) + return rc; + + if (!verbose) + return 0; + + desc = get_global_ctrg()->desc; + + for (i = 0; i < desc->num_ctr; i++) { + struct rate_ctr *ctr = &get_global_ctrg()->ctr[i]; + if (ctr->current) { + rc = fprintf(stream, "%*s %s: %llu\n", + indent, "", + desc->ctr_desc[i].description, + (long long)ctr->current); + + if (rc < 0) + return rc; + } + } + + return 0; +} + int gbprox_dump_peers(FILE *stream, int indent, int verbose) { struct gbprox_peer *peer; @@ -808,7 +839,10 @@ int gbprox_dump_peers(FILE *stream, int indent, int verbose) const struct rate_ctr_group_desc *desc; int rc; - fprintf(stream, "%*sPeers:\n", indent, ""); + rc = fprintf(stream, "%*sPeers:\n", indent, ""); + if (rc < 0) + return rc; + llist_for_each_entry(peer, &gbprox_bts_peers, list) { gsm48_parse_ra(&raid, peer->ra); diff --git a/openbsc/tests/gbproxy/gbproxy_test.c b/openbsc/tests/gbproxy/gbproxy_test.c index 21ee723..e1e6587 100644 --- a/openbsc/tests/gbproxy/gbproxy_test.c +++ b/openbsc/tests/gbproxy/gbproxy_test.c @@ -523,6 +523,8 @@ static void test_gbproxy() gprs_dump_nsi(nsi); gbprox_dump_peers(stdout, 0, 1); + gbprox_dump_global(stdout, 0, 1); + send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); @@ -533,6 +535,12 @@ static void test_gbproxy() send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x1012, (uint8_t *)"", 0); + printf("--- Send message from SGSN to BSS 1, BVCI 0x10ff (invalid) ---\n\n"); + + send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x10ff, (uint8_t *)"", 0); + + gbprox_dump_global(stdout, 0, 1); + gprs_ns_destroy(nsi); nsi = NULL; } diff --git a/openbsc/tests/gbproxy/gbproxy_test.ok b/openbsc/tests/gbproxy/gbproxy_test.ok index e4b7aba..fcde39f 100644 --- a/openbsc/tests/gbproxy/gbproxy_test.ok +++ b/openbsc/tests/gbproxy/gbproxy_test.ok @@ -749,6 +749,7 @@ Peers: NSEI mismatch : 1 NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 NSEI mismatch : 1 +Gbproxy global: PROCESSING BVC_RESET_ACK from 0x05060708:32000 00 00 00 00 23 04 82 10 02 @@ -795,5 +796,22 @@ MESSAGE to BSS at 0x01020304:1111, msg length 4 result (UNITDATA) = 4 +--- Send message from SGSN to BSS 1, BVCI 0x10ff (invalid) --- + +PROCESSING UNITDATA from 0x05060708:32000 +00 00 10 ff + +CALLBACK, event 0, msg length 0, bvci 0x10ff + + +NS UNITDATA MESSAGE to SGSN, BVCI 0x10ff, msg length 0 + + +MESSAGE to SGSN at 0x05060708:32000, msg length 4 +00 00 10 ff + +result (UNITDATA) = 4 + +Gbproxy global: ===== NS protocol test END -- 1.7.9.5

11 years, 8 months

[PATCH 1/3] gbproxy: Extended test program to simulate SGSN, too

by Jacob Erlbeck

This adds a simulation of the SGSN side of the Gbproxy. The VC is set up correctly and several combinations of BSSGP messages are sent. Sponsored-by: On-Waves ehf --- openbsc/tests/gbproxy/gbproxy_test.c | 168 ++++++++++- openbsc/tests/gbproxy/gbproxy_test.ok | 502 ++++++++++++++++++++++++++++++--- 2 files changed, 627 insertions(+), 43 deletions(-) diff --git a/openbsc/tests/gbproxy/gbproxy_test.c b/openbsc/tests/gbproxy/gbproxy_test.c index 0b4521f..93fdbe0 100644 --- a/openbsc/tests/gbproxy/gbproxy_test.c +++ b/openbsc/tests/gbproxy/gbproxy_test.c @@ -32,11 +32,13 @@ #define REMOTE_BSS_ADDR 0x01020304 #define REMOTE_SGSN_ADDR 0x05060708 -#define SGSN_NSEI 0xfffe +#define SGSN_NSEI 0x0100 struct gbproxy_config gbcfg; -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 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) @@ -57,6 +59,24 @@ static void send_ns_reset(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr 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 */ @@ -87,8 +107,18 @@ static void send_ns_unblock(struct gprs_ns_inst *nsi, struct sockaddr_in *src_ad gprs_process_message(nsi, "UNBLOCK", src_addr, msg, sizeof(msg)); } -static void send_ns_unitdata(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, - uint16_t nsbvci, +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, const char *text, + 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 */ @@ -102,7 +132,7 @@ static void send_ns_unitdata(struct gprs_ns_inst *nsi, struct sockaddr_in *src_a msg[3] = nsbvci % 256; memcpy(msg + 4, bssgp_msg, bssgp_msg_size); - gprs_process_message(nsi, "UNITDATA", src_addr, msg, bssgp_msg_size + 4); + gprs_process_message(nsi, text ? text : "UNITDATA", src_addr, msg, bssgp_msg_size + 4); } static void send_bssgp_reset(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, @@ -119,7 +149,23 @@ static void send_bssgp_reset(struct gprs_ns_inst *nsi, struct sockaddr_in *src_a msg[3] = bvci / 256; msg[4] = bvci % 256; - send_ns_unitdata(nsi, src_addr, 0, msg, sizeof(msg)); + send_ns_unitdata(nsi, "BVC_RESET", src_addr, 0, msg, sizeof(msg)); +} + +static void send_bssgp_reset_ack(struct gprs_ns_inst *nsi, + struct sockaddr_in *src_addr, uint16_t bvci) +{ + /* GPRS Network Service, PDU type: NS_UNITDATA, BVCI 0 + * BSSGP RESET_ACK */ + static unsigned char msg[5] = { + 0x23, 0x04, 0x82, 0x00, + 0x00 + }; + + msg[3] = bvci / 256; + msg[4] = bvci % 256; + + send_ns_unitdata(nsi, "BVC_RESET_ACK", src_addr, 0, msg, sizeof(msg)); } static void setup_ns(struct gprs_ns_inst *nsi, struct sockaddr_in *src_addr, @@ -175,14 +221,19 @@ ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, 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); + int dest_port = htons(((struct sockaddr_in *)dest_addr)->sin_port); if (!real_sendto) real_sendto = dlsym(RTLD_NEXT, "sendto"); if (dest_host == REMOTE_BSS_ADDR) - printf("MESSAGE to BSS, msg length %d\n%s\n\n", len, osmo_hexdump(buf, len)); + printf("MESSAGE to BSS at 0x%08x:%d, msg length %d\n%s\n\n", + dest_host, dest_port, + 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)); + printf("MESSAGE to SGSN at 0x%08x:%d, msg length %d\n%s\n\n", + dest_host, dest_port, + len, osmo_hexdump(buf, len)); else return real_sendto(sockfd, buf, len, flags, dest_addr, addrlen); @@ -192,12 +243,17 @@ ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, /* 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)); @@ -205,7 +261,7 @@ int gprs_ns_sendmsg(struct gprs_ns_inst *nsi, struct msgb *msg) printf("NS UNITDATA MESSAGE to BSS, BVCI 0x%04x, msg length %d\n%s\n\n", bvci, len, osmo_hexdump(buf, len)); - return 0; + return real_gprs_ns_sendmsg(nsi, msg); } static void dump_rate_ctr_group(FILE *stream, const char *prefix, @@ -312,9 +368,11 @@ 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); } @@ -325,11 +383,16 @@ static void test_gbproxy() { struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); struct sockaddr_in bss_peer[4] = {{0},}; + struct sockaddr_in sgsn_peer= {0}; bssgp_nsi = nsi; gbcfg.nsi = bssgp_nsi; gbcfg.nsip_sgsn_nsei = SGSN_NSEI; + sgsn_peer.sin_family = AF_INET; + sgsn_peer.sin_port = htons(32000); + sgsn_peer.sin_addr.s_addr = htonl(REMOTE_SGSN_ADDR); + bss_peer[0].sin_family = AF_INET; bss_peer[0].sin_port = htons(1111); bss_peer[0].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); @@ -343,6 +406,15 @@ static void test_gbproxy() bss_peer[3].sin_port = htons(4444); bss_peer[3].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); + printf("--- Initialise SGSN ---\n\n"); + + gprs_ns_nsip_connect(nsi, &sgsn_peer, SGSN_NSEI, SGSN_NSEI+1); + send_ns_reset_ack(nsi, &sgsn_peer, SGSN_NSEI+1, SGSN_NSEI); + send_ns_alive_ack(nsi, &sgsn_peer); + send_ns_unblock_ack(nsi, &sgsn_peer); + send_ns_alive(nsi, &sgsn_peer); + gprs_dump_nsi(nsi); + printf("--- Initialise BSS 1 ---\n\n"); setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); @@ -350,6 +422,8 @@ static void test_gbproxy() gprs_dump_nsi(nsi); gbprox_dump_peers(stdout, 0); + send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); + printf("--- Initialise BSS 2 ---\n\n"); setup_ns(nsi, &bss_peer[1], 0x2001, 0x2000); @@ -357,6 +431,8 @@ static void test_gbproxy() gprs_dump_nsi(nsi); gbprox_dump_peers(stdout, 0); + send_bssgp_reset_ack(nsi, &sgsn_peer, 0x2002); + printf("--- Move BSS 1 to new port ---\n\n"); setup_ns(nsi, &bss_peer[2], 0x1001, 0x1000); @@ -387,6 +463,76 @@ static void test_gbproxy() gprs_dump_nsi(nsi); gbprox_dump_peers(stdout, 0); + printf("--- Move BSS 1 to original BSS 1 port ---\n\n"); + + setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + printf("--- Reset BSS 1 with a new BVCI ---\n\n"); + + setup_bssgp(nsi, &bss_peer[0], 0x1012); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1012); + + printf("--- Reset BSS 1 with the old BVCI ---\n\n"); + + setup_bssgp(nsi, &bss_peer[0], 0x1002); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); + + printf("--- Reset BSS 1 with the old BVCI again ---\n\n"); + + setup_bssgp(nsi, &bss_peer[0], 0x1002); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); + + printf("--- Send message from BSS 1 to SGSN, BVCI 0x1012 ---\n\n"); + + send_ns_unitdata(nsi, NULL, &bss_peer[0], 0x1012, (uint8_t *)"", 0); + + printf("--- Send message from SGSN to BSS 1, BVCI 0x1012 ---\n\n"); + + send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x1012, (uint8_t *)"", 0); + + printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); + + send_ns_unitdata(nsi, NULL, &bss_peer[0], 0x1012, (uint8_t *)"", 0); + + printf("--- Send message from SGSN to BSS 1, BVCI 0x1002 ---\n\n"); + + send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x1012, (uint8_t *)"", 0); + + printf("--- Send message from BSS 2 to SGSN, BVCI 0x2002 ---\n\n"); + + send_ns_unitdata(nsi, NULL, &bss_peer[0], 0x2002, (uint8_t *)"", 0); + + printf("--- Send message from SGSN to BSS 2, BVCI 0x2002 ---\n\n"); + + send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x2002, (uint8_t *)"", 0); + + printf("--- Reset BSS 1 with the old BVCI on BSS2's link ---\n\n"); + + setup_bssgp(nsi, &bss_peer[2], 0x1002); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + send_bssgp_reset_ack(nsi, &sgsn_peer, 0x1002); + + printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n"); + + send_ns_unitdata(nsi, NULL, &bss_peer[0], 0x1012, (uint8_t *)"", 0); + + printf("--- Send message from SGSN to BSS 1, BVCI 0x1002 ---\n\n"); + + send_ns_unitdata(nsi, NULL, &sgsn_peer, 0x1012, (uint8_t *)"", 0); + gprs_ns_destroy(nsi); nsi = NULL; } diff --git a/openbsc/tests/gbproxy/gbproxy_test.ok b/openbsc/tests/gbproxy/gbproxy_test.ok index 0835921..b8920ac 100644 --- a/openbsc/tests/gbproxy/gbproxy_test.ok +++ b/openbsc/tests/gbproxy/gbproxy_test.ok @@ -1,4 +1,44 @@ ===== NS protocol test START +--- Initialise SGSN --- + +MESSAGE to SGSN at 0x05060708:32000, 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 at 0x05060708:32000, msg length 1 +0a + +result (RESET_ACK) = 1 + +PROCESSING ALIVE_ACK from 0x05060708:32000 +0b + +MESSAGE to SGSN at 0x05060708:32000, msg length 1 +06 + +result (ALIVE_ACK) = 1 + +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 at 0x05060708:32000, msg length 1 +0b + +result (ALIVE) = 1 + +Current NS-VCIs: + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 + --- Initialise BSS 1 --- Setup NS-VC: remote 0x01020304:1111, NSVCI 0x1001(4097), NSEI 0x1000(4096) @@ -8,10 +48,10 @@ PROCESSING RESET from 0x01020304:1111 ==> got signal NS_RESET, NS-VC 0x1001/1.2.3.4:1111 -MESSAGE to BSS, msg length 9 +MESSAGE to BSS at 0x01020304:1111, msg length 9 03 01 82 10 01 04 82 10 00 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:1111, msg length 1 0a result (RESET) = 9 @@ -19,7 +59,7 @@ result (RESET) = 9 PROCESSING ALIVE from 0x01020304:1111 0a -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:1111, msg length 1 0b result (ALIVE) = 1 @@ -29,7 +69,7 @@ PROCESSING UNBLOCK from 0x01020304:1111 ==> got signal NS_UNBLOCK, NS-VC 0x1001/1.2.3.4:1111 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:1111, msg length 1 07 result (UNBLOCK) = 1 @@ -41,7 +81,7 @@ result (ALIVE_ACK) = 0 Setup BSSGP: remote 0x01020304:1111, BVCI 0x1002(4098) -PROCESSING UNITDATA from 0x01020304:1111 +PROCESSING BVC_RESET from 0x01020304:1111 00 00 00 00 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 CALLBACK, event 0, msg length 22, bvci 0x0000 @@ -50,13 +90,32 @@ CALLBACK, event 0, msg length 22, bvci 0x0000 NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 22 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 -result (UNITDATA) = 0 +MESSAGE to SGSN at 0x05060708:32000, msg length 26 +00 00 00 00 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +result (BVC_RESET) = 26 Current NS-VCIs: VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 Peers: NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +PROCESSING BVC_RESET_ACK from 0x05060708:32000 +00 00 00 00 23 04 82 10 02 + +CALLBACK, event 0, msg length 5, bvci 0x0000 +23 04 82 10 02 + +NS UNITDATA MESSAGE to BSS, BVCI 0x0000, msg length 5 +23 04 82 10 02 + +MESSAGE to BSS at 0x01020304:1111, msg length 9 +00 00 00 00 23 04 82 10 02 + +result (BVC_RESET_ACK) = 9 + --- Initialise BSS 2 --- Setup NS-VC: remote 0x01020304:2222, NSVCI 0x2001(8193), NSEI 0x2000(8192) @@ -66,10 +125,10 @@ PROCESSING RESET from 0x01020304:2222 ==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:2222 -MESSAGE to BSS, msg length 9 +MESSAGE to BSS at 0x01020304:2222, msg length 9 03 01 82 20 01 04 82 20 00 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:2222, msg length 1 0a result (RESET) = 9 @@ -77,7 +136,7 @@ result (RESET) = 9 PROCESSING ALIVE from 0x01020304:2222 0a -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:2222, msg length 1 0b result (ALIVE) = 1 @@ -87,7 +146,7 @@ PROCESSING UNBLOCK from 0x01020304:2222 ==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:2222 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:2222, msg length 1 07 result (UNBLOCK) = 1 @@ -99,7 +158,7 @@ result (ALIVE_ACK) = 0 Setup BSSGP: remote 0x01020304:2222, BVCI 0x2002(8194) -PROCESSING UNITDATA from 0x01020304:2222 +PROCESSING BVC_RESET from 0x01020304:2222 00 00 00 00 22 04 82 20 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 CALLBACK, event 0, msg length 22, bvci 0x0000 @@ -108,15 +167,34 @@ CALLBACK, event 0, msg length 22, bvci 0x0000 NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 22 22 04 82 20 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 -result (UNITDATA) = 0 +MESSAGE to SGSN at 0x05060708:32000, msg length 26 +00 00 00 00 22 04 82 20 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +result (BVC_RESET) = 26 Current NS-VCIs: VCI 0x2001, NSEI 0x2000, peer 0x01020304:2222 VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 Peers: NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +PROCESSING BVC_RESET_ACK from 0x05060708:32000 +00 00 00 00 23 04 82 20 02 + +CALLBACK, event 0, msg length 5, bvci 0x0000 +23 04 82 20 02 + +NS UNITDATA MESSAGE to BSS, BVCI 0x0000, msg length 5 +23 04 82 20 02 + +MESSAGE to BSS at 0x01020304:2222, msg length 9 +00 00 00 00 23 04 82 20 02 + +result (BVC_RESET_ACK) = 9 + --- Move BSS 1 to new port --- Setup NS-VC: remote 0x01020304:3333, NSVCI 0x1001(4097), NSEI 0x1000(4096) @@ -126,10 +204,10 @@ PROCESSING RESET from 0x01020304:3333 ==> got signal NS_RESET, NS-VC 0x1001/1.2.3.4:3333 -MESSAGE to BSS, msg length 9 +MESSAGE to BSS at 0x01020304:3333, msg length 9 03 01 82 10 01 04 82 10 00 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:3333, msg length 1 0a result (RESET) = 9 @@ -137,7 +215,7 @@ result (RESET) = 9 PROCESSING ALIVE from 0x01020304:3333 0a -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:3333, msg length 1 0b result (ALIVE) = 1 @@ -147,7 +225,7 @@ PROCESSING UNBLOCK from 0x01020304:3333 ==> got signal NS_UNBLOCK, NS-VC 0x1001/1.2.3.4:3333 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:3333, msg length 1 07 result (UNBLOCK) = 1 @@ -160,6 +238,8 @@ result (ALIVE_ACK) = 0 Current NS-VCIs: VCI 0x2001, NSEI 0x2000, peer 0x01020304:2222 VCI 0x1001, NSEI 0x1000, peer 0x01020304:3333 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 Peers: NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 @@ -173,10 +253,10 @@ PROCESSING RESET from 0x01020304:1111 ==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:1111 -MESSAGE to BSS, msg length 9 +MESSAGE to BSS at 0x01020304:1111, msg length 9 03 01 82 20 01 04 82 20 00 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:1111, msg length 1 0a result (RESET) = 9 @@ -184,7 +264,7 @@ result (RESET) = 9 PROCESSING ALIVE from 0x01020304:1111 0a -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:1111, msg length 1 0b result (ALIVE) = 1 @@ -194,7 +274,7 @@ PROCESSING UNBLOCK from 0x01020304:1111 ==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:1111 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:1111, msg length 1 07 result (UNBLOCK) = 1 @@ -207,6 +287,8 @@ result (ALIVE_ACK) = 0 Current NS-VCIs: VCI 0x2001, NSEI 0x2000, peer 0x01020304:1111 VCI 0x1001, NSEI 0x1000, peer 0x01020304:3333 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 Peers: NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 @@ -220,10 +302,10 @@ PROCESSING RESET from 0x01020304:1111 ==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:1111 -MESSAGE to BSS, msg length 9 +MESSAGE to BSS at 0x01020304:1111, msg length 9 03 01 82 20 01 04 82 20 00 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:1111, msg length 1 0a result (RESET) = 9 @@ -231,7 +313,7 @@ result (RESET) = 9 PROCESSING ALIVE from 0x01020304:1111 0a -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:1111, msg length 1 0b result (ALIVE) = 1 @@ -241,7 +323,7 @@ PROCESSING UNBLOCK from 0x01020304:1111 ==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:1111 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:1111, msg length 1 07 result (UNBLOCK) = 1 @@ -254,6 +336,8 @@ result (ALIVE_ACK) = 0 Current NS-VCIs: VCI 0x2001, NSEI 0x2000, peer 0x01020304:1111 VCI 0x1001, NSEI 0x1000, peer 0x01020304:3333 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 Peers: NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 @@ -267,10 +351,10 @@ PROCESSING RESET from 0x01020304:4444 ==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:4444 -MESSAGE to BSS, msg length 9 +MESSAGE to BSS at 0x01020304:4444, msg length 9 03 01 82 20 01 04 82 20 00 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:4444, msg length 1 0a result (RESET) = 9 @@ -278,7 +362,7 @@ result (RESET) = 9 PROCESSING ALIVE from 0x01020304:4444 0a -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:4444, msg length 1 0b result (ALIVE) = 1 @@ -288,7 +372,7 @@ PROCESSING UNBLOCK from 0x01020304:4444 ==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:4444 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:4444, msg length 1 07 result (UNBLOCK) = 1 @@ -301,6 +385,8 @@ result (ALIVE_ACK) = 0 Current NS-VCIs: VCI 0x2001, NSEI 0x2000, peer 0x01020304:4444 VCI 0x1001, NSEI 0x1000, peer 0x01020304:3333 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 Peers: NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 @@ -316,10 +402,10 @@ PROCESSING RESET from 0x01020304:3333 ==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:3333 -MESSAGE to BSS, msg length 9 +MESSAGE to BSS at 0x01020304:3333, msg length 9 03 01 82 20 01 04 82 20 00 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:3333, msg length 1 0a result (RESET) = 9 @@ -327,7 +413,7 @@ result (RESET) = 9 PROCESSING ALIVE from 0x01020304:3333 0a -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:3333, msg length 1 0b result (ALIVE) = 1 @@ -337,7 +423,7 @@ PROCESSING UNBLOCK from 0x01020304:3333 ==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:3333 -MESSAGE to BSS, msg length 1 +MESSAGE to BSS at 0x01020304:3333, msg length 1 07 result (UNBLOCK) = 1 @@ -351,9 +437,361 @@ Current NS-VCIs: VCI 0x2001, NSEI 0x2000, peer 0x01020304:3333 NS-VC replaced other count: 1 VCI 0x1001, NSEI 0x1000, peer 0x00000000:0 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 + +Peers: + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +--- Move BSS 1 to original BSS 1 port --- + +Setup NS-VC: remote 0x01020304:1111, NSVCI 0x1001(4097), NSEI 0x1000(4096) + +PROCESSING RESET from 0x01020304:1111 +02 00 81 01 01 82 10 01 04 82 10 00 + +==> got signal NS_RESET, NS-VC 0x1001/1.2.3.4:1111 + +MESSAGE to BSS at 0x01020304:1111, msg length 9 +03 01 82 10 01 04 82 10 00 + +MESSAGE to BSS at 0x01020304:1111, msg length 1 +0a + +result (RESET) = 9 + +PROCESSING ALIVE from 0x01020304:1111 +0a + +MESSAGE to BSS at 0x01020304:1111, msg length 1 +0b + +result (ALIVE) = 1 + +PROCESSING UNBLOCK from 0x01020304:1111 +06 + +==> got signal NS_UNBLOCK, NS-VC 0x1001/1.2.3.4:1111 + +MESSAGE to BSS at 0x01020304:1111, msg length 1 +07 + +result (UNBLOCK) = 1 + +PROCESSING ALIVE_ACK from 0x01020304:1111 +0b + +result (ALIVE_ACK) = 0 + +Current NS-VCIs: + VCI 0x2001, NSEI 0x2000, peer 0x01020304:3333 + NS-VC replaced other count: 1 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 Peers: NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +--- Reset BSS 1 with a new BVCI --- + +Setup BSSGP: remote 0x01020304:1111, BVCI 0x1012(4114) + +PROCESSING BVC_RESET from 0x01020304:1111 +00 00 00 00 22 04 82 10 12 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +CALLBACK, event 0, msg length 22, bvci 0x0000 +22 04 82 10 12 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 22 +22 04 82 10 12 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +MESSAGE to SGSN at 0x05060708:32000, msg length 26 +00 00 00 00 22 04 82 10 12 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +result (BVC_RESET) = 26 + +Current NS-VCIs: + VCI 0x2001, NSEI 0x2000, peer 0x01020304:3333 + NS-VC replaced other count: 1 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 + +Peers: + NSEI 4096, BVCI 4114, not blocked, RAC 10-32-16464-96 + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +PROCESSING BVC_RESET_ACK from 0x05060708:32000 +00 00 00 00 23 04 82 10 12 + +CALLBACK, event 0, msg length 5, bvci 0x0000 +23 04 82 10 12 + +NS UNITDATA MESSAGE to BSS, BVCI 0x0000, msg length 5 +23 04 82 10 12 + +MESSAGE to BSS at 0x01020304:1111, msg length 9 +00 00 00 00 23 04 82 10 12 + +result (BVC_RESET_ACK) = 9 + +--- Reset BSS 1 with the old BVCI --- + +Setup BSSGP: remote 0x01020304:1111, BVCI 0x1002(4098) + +PROCESSING BVC_RESET from 0x01020304:1111 +00 00 00 00 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +CALLBACK, event 0, msg length 22, bvci 0x0000 +22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 22 +22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +MESSAGE to SGSN at 0x05060708:32000, msg length 26 +00 00 00 00 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +result (BVC_RESET) = 26 + +Current NS-VCIs: + VCI 0x2001, NSEI 0x2000, peer 0x01020304:3333 + NS-VC replaced other count: 1 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 + +Peers: + NSEI 4096, BVCI 4114, not blocked, RAC 10-32-16464-96 + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +PROCESSING BVC_RESET_ACK from 0x05060708:32000 +00 00 00 00 23 04 82 10 02 + +CALLBACK, event 0, msg length 5, bvci 0x0000 +23 04 82 10 02 + +NS UNITDATA MESSAGE to BSS, BVCI 0x0000, msg length 5 +23 04 82 10 02 + +MESSAGE to BSS at 0x01020304:1111, msg length 9 +00 00 00 00 23 04 82 10 02 + +result (BVC_RESET_ACK) = 9 + +--- Reset BSS 1 with the old BVCI again --- + +Setup BSSGP: remote 0x01020304:1111, BVCI 0x1002(4098) + +PROCESSING BVC_RESET from 0x01020304:1111 +00 00 00 00 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +CALLBACK, event 0, msg length 22, bvci 0x0000 +22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 22 +22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +MESSAGE to SGSN at 0x05060708:32000, msg length 26 +00 00 00 00 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +result (BVC_RESET) = 26 + +Current NS-VCIs: + VCI 0x2001, NSEI 0x2000, peer 0x01020304:3333 + NS-VC replaced other count: 1 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 + +Peers: + NSEI 4096, BVCI 4114, not blocked, RAC 10-32-16464-96 + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +PROCESSING BVC_RESET_ACK from 0x05060708:32000 +00 00 00 00 23 04 82 10 02 + +CALLBACK, event 0, msg length 5, bvci 0x0000 +23 04 82 10 02 + +NS UNITDATA MESSAGE to BSS, BVCI 0x0000, msg length 5 +23 04 82 10 02 + +MESSAGE to BSS at 0x01020304:1111, msg length 9 +00 00 00 00 23 04 82 10 02 + +result (BVC_RESET_ACK) = 9 + +--- Send message from BSS 1 to SGSN, BVCI 0x1012 --- + +PROCESSING UNITDATA from 0x01020304:1111 +00 00 10 12 + +CALLBACK, event 0, msg length 0, bvci 0x1012 + + +NS UNITDATA MESSAGE to SGSN, BVCI 0x1012, msg length 0 + + +MESSAGE to SGSN at 0x05060708:32000, msg length 4 +00 00 10 12 + +result (UNITDATA) = 4 + +--- Send message from SGSN to BSS 1, BVCI 0x1012 --- + +PROCESSING UNITDATA from 0x05060708:32000 +00 00 10 12 + +CALLBACK, event 0, msg length 0, bvci 0x1012 + + +NS UNITDATA MESSAGE to BSS, BVCI 0x1012, msg length 0 + + +MESSAGE to BSS at 0x01020304:1111, msg length 4 +00 00 10 12 + +result (UNITDATA) = 4 + +--- Send message from BSS 1 to SGSN, BVCI 0x1002 --- + +PROCESSING UNITDATA from 0x01020304:1111 +00 00 10 12 + +CALLBACK, event 0, msg length 0, bvci 0x1012 + + +NS UNITDATA MESSAGE to SGSN, BVCI 0x1012, msg length 0 + + +MESSAGE to SGSN at 0x05060708:32000, msg length 4 +00 00 10 12 + +result (UNITDATA) = 4 + +--- Send message from SGSN to BSS 1, BVCI 0x1002 --- + +PROCESSING UNITDATA from 0x05060708:32000 +00 00 10 12 + +CALLBACK, event 0, msg length 0, bvci 0x1012 + + +NS UNITDATA MESSAGE to BSS, BVCI 0x1012, msg length 0 + + +MESSAGE to BSS at 0x01020304:1111, msg length 4 +00 00 10 12 + +result (UNITDATA) = 4 + +--- Send message from BSS 2 to SGSN, BVCI 0x2002 --- + +PROCESSING UNITDATA from 0x01020304:1111 +00 00 20 02 + +CALLBACK, event 0, msg length 0, bvci 0x2002 + + +NS UNITDATA MESSAGE to SGSN, BVCI 0x2002, msg length 0 + + +MESSAGE to SGSN at 0x05060708:32000, msg length 4 +00 00 20 02 + +result (UNITDATA) = 4 + +--- Send message from SGSN to BSS 2, BVCI 0x2002 --- + +PROCESSING UNITDATA from 0x05060708:32000 +00 00 20 02 + +CALLBACK, event 0, msg length 0, bvci 0x2002 + + +NS UNITDATA MESSAGE to BSS, BVCI 0x2002, msg length 0 + + +MESSAGE to BSS at 0x01020304:3333, msg length 4 +00 00 20 02 + +result (UNITDATA) = 4 + +--- Reset BSS 1 with the old BVCI on BSS2's link --- + +Setup BSSGP: remote 0x01020304:3333, BVCI 0x1002(4098) + +PROCESSING BVC_RESET from 0x01020304:3333 +00 00 00 00 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +CALLBACK, event 0, msg length 22, bvci 0x0000 +22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 22 +22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +MESSAGE to SGSN at 0x05060708:32000, msg length 26 +00 00 00 00 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +result (BVC_RESET) = 26 + +Current NS-VCIs: + VCI 0x2001, NSEI 0x2000, peer 0x01020304:3333 + NS-VC replaced other count: 1 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111 + VCI 0x0101, NSEI 0x0100, peer 0x05060708:32000 + NS-VC Block count : 1 + +Peers: + NSEI 4096, BVCI 4114, not blocked, RAC 10-32-16464-96 + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +PROCESSING BVC_RESET_ACK from 0x05060708:32000 +00 00 00 00 23 04 82 10 02 + +CALLBACK, event 0, msg length 5, bvci 0x0000 +23 04 82 10 02 + +NS UNITDATA MESSAGE to BSS, BVCI 0x0000, msg length 5 +23 04 82 10 02 + +MESSAGE to BSS at 0x01020304:1111, msg length 9 +00 00 00 00 23 04 82 10 02 + +result (BVC_RESET_ACK) = 9 + +--- Send message from BSS 1 to SGSN, BVCI 0x1002 --- + +PROCESSING UNITDATA from 0x01020304:1111 +00 00 10 12 + +CALLBACK, event 0, msg length 0, bvci 0x1012 + + +NS UNITDATA MESSAGE to SGSN, BVCI 0x1012, msg length 0 + + +MESSAGE to SGSN at 0x05060708:32000, msg length 4 +00 00 10 12 + +result (UNITDATA) = 4 + +--- Send message from SGSN to BSS 1, BVCI 0x1002 --- + +PROCESSING UNITDATA from 0x05060708:32000 +00 00 10 12 + +CALLBACK, event 0, msg length 0, bvci 0x1012 + + +NS UNITDATA MESSAGE to BSS, BVCI 0x1012, msg length 0 + + +MESSAGE to BSS at 0x01020304:1111, msg length 4 +00 00 10 12 + +result (UNITDATA) = 4 + ===== NS protocol test END -- 1.7.9.5

11 years, 8 months

OpenBSC LCR compile problems

by Robert Light

11 years, 8 months

[PATCH] gb: When sending on a NS-VC group use the first active NS-VC

by Jacob Erlbeck

Currently this first NS-VC with a matching NSEI is always used to send a UNITDATA message via gprs_ns_sendmsg(). If the NS-VC found is either dead or blocked, an error is returned. This patch changes to code to skip blocked or dead NS-VCs while searching and return the error if no usable NS-VC is found. This makes it possible to have several NS-VCs per connection group. Sponsored-by: On-Waves ehf --- src/gb/gprs_ns.c | 47 +++++++++++++++++++++++++++++------------------ 1 file changed, 29 insertions(+), 18 deletions(-) diff --git a/src/gb/gprs_ns.c b/src/gb/gprs_ns.c index b5f91c4..7801b29 100644 --- a/src/gb/gprs_ns.c +++ b/src/gb/gprs_ns.c @@ -136,7 +136,7 @@ struct gprs_nsvc *gprs_nsvc_by_nsvci(struct gprs_ns_inst *nsi, uint16_t nsvci) /*! \brief Lookup struct gprs_nsvc based on NSEI * \param[in] nsi NS instance in which to search * \param[in] nsei NSEI to be searched - * \returns gprs_nsvc of respective NSEI + * \returns first gprs_nsvc of respective NSEI */ struct gprs_nsvc *gprs_nsvc_by_nsei(struct gprs_ns_inst *nsi, uint16_t nsei) { @@ -148,6 +148,20 @@ struct gprs_nsvc *gprs_nsvc_by_nsei(struct gprs_ns_inst *nsi, uint16_t nsei) return NULL; } +static struct gprs_nsvc *gprs_active_nsvc_by_nsei(struct gprs_ns_inst *nsi, + uint16_t nsei) +{ + struct gprs_nsvc *nsvc; + llist_for_each_entry(nsvc, &nsi->gprs_nsvcs, list) { + if (nsvc->nsei == nsei) { + if (nsvc->state & NSE_S_BLOCKED || + !(nsvc->state & NSE_S_ALIVE)) + return nsvc; + } + } + return NULL; +} + /* Lookup struct gprs_nsvc based on remote peer socket addr */ static struct gprs_nsvc *nsvc_by_rem_addr(struct gprs_ns_inst *nsi, struct sockaddr_in *sin) @@ -559,27 +573,24 @@ int gprs_ns_sendmsg(struct gprs_ns_inst *nsi, struct msgb *msg) struct gprs_ns_hdr *nsh; uint16_t bvci = msgb_bvci(msg); - nsvc = gprs_nsvc_by_nsei(nsi, msgb_nsei(msg)); + nsvc = gprs_active_nsvc_by_nsei(nsi, msgb_nsei(msg)); if (!nsvc) { - LOGP(DNS, LOGL_ERROR, "Unable to resolve NSEI %u " - "to NS-VC!\n", msgb_nsei(msg)); - msgb_free(msg); - return -EINVAL; - } - log_set_context(GPRS_CTX_NSVC, nsvc); + int rc; + if (gprs_nsvc_by_nsei(nsi, msgb_nsei(msg))) { + LOGP(DNS, LOGL_ERROR, + "All NS-VCs for NSEI %u are either dead or blocked!\n", + msgb_nsei(msg)); + rc = -EBUSY; + } else { + LOGP(DNS, LOGL_ERROR, "Unable to resolve NSEI %u " + "to NS-VC!\n", msgb_nsei(msg)); + rc = -EINVAL; + } - if (!(nsvc->state & NSE_S_ALIVE)) { - LOGP(DNS, LOGL_ERROR, "NSEI=%u is not alive, cannot send\n", - nsvc->nsei); msgb_free(msg); - return -EBUSY; - } - if (nsvc->state & NSE_S_BLOCKED) { - LOGP(DNS, LOGL_ERROR, "NSEI=%u is blocked, cannot send\n", - nsvc->nsei); - msgb_free(msg); - return -EBUSY; + return rc; } + log_set_context(GPRS_CTX_NSVC, nsvc); msg->l2h = msgb_push(msg, sizeof(*nsh) + 3); nsh = (struct gprs_ns_hdr *) msg->l2h; -- 1.7.9.5

11 years, 8 months

[PATCH 1/2] gbproxy: Add test program to test gbproxy message handling

by Jacob Erlbeck

This program tests the gbproxy implementation by passing NS messages to a modified gbproxy that dumps the resulting messages, signals, and state. It focusses on testing abnormal situations like port changes. Ticket: OW#874 Sponsored-by: On-Waves ehf --- openbsc/configure.ac | 1 + openbsc/include/openbsc/gb_proxy.h | 1 + openbsc/src/gprs/gb_proxy.c | 23 ++ openbsc/tests/Makefile.am | 2 +- openbsc/tests/gbproxy/Makefile.am | 18 ++ openbsc/tests/gbproxy/gbproxy_test.c | 403 +++++++++++++++++++++++++++++++++ openbsc/tests/gbproxy/gbproxy_test.ok | 357 +++++++++++++++++++++++++++++ openbsc/tests/testsuite.at | 6 + 8 files changed, 810 insertions(+), 1 deletion(-) create mode 100644 openbsc/tests/gbproxy/Makefile.am create mode 100644 openbsc/tests/gbproxy/gbproxy_test.c create mode 100644 openbsc/tests/gbproxy/gbproxy_test.ok diff --git a/openbsc/configure.ac b/openbsc/configure.ac index ddd15e3..531efcf 100644 --- a/openbsc/configure.ac +++ b/openbsc/configure.ac @@ -162,6 +162,7 @@ AC_OUTPUT( tests/bsc-nat-trie/Makefile tests/mgcp/Makefile tests/gprs/Makefile + tests/gbproxy/Makefile tests/si/Makefile tests/abis/Makefile tests/smpp/Makefile diff --git a/openbsc/include/openbsc/gb_proxy.h b/openbsc/include/openbsc/gb_proxy.h index 2c8ddb3..56b1b3d 100644 --- a/openbsc/include/openbsc/gb_proxy.h +++ b/openbsc/include/openbsc/gb_proxy.h @@ -35,4 +35,5 @@ int gbprox_signal(unsigned int subsys, unsigned int signal, /* Reset all persistent NS-VC's */ int gbprox_reset_persistent_nsvcs(struct gprs_ns_inst *nsi); +int gbprox_dump_peers(FILE *stream, int indent); #endif diff --git a/openbsc/src/gprs/gb_proxy.c b/openbsc/src/gprs/gb_proxy.c index b99c455..3a9fe81 100644 --- a/openbsc/src/gprs/gb_proxy.c +++ b/openbsc/src/gprs/gb_proxy.c @@ -658,6 +658,29 @@ int gbprox_signal(unsigned int subsys, unsigned int signal, return 0; } +int gbprox_dump_peers(FILE *stream, int indent) +{ + struct gbprox_peer *peer; + struct gprs_ra_id raid; + int rc; + + fprintf(stream, "%*sPeers:\n", indent, ""); + llist_for_each_entry(peer, &gbprox_bts_peers, list) { + gsm48_parse_ra(&raid, peer->ra); + + rc = fprintf(stream, "%*s NSEI %u, BVCI %u, %sblocked, " + "RAC %u-%u-%u-%u\n", + indent, "", + peer->nsvc->nsei, peer->bvci, + peer->blocked ? "" : "not ", + raid.mcc, raid.mnc, raid.lac, raid.rac); + + if (rc < 0) + return rc; + } + + return 0; +} #include <osmocom/vty/command.h> diff --git a/openbsc/tests/Makefile.am b/openbsc/tests/Makefile.am index ed21fc3..7f51bfa 100644 --- a/openbsc/tests/Makefile.am +++ b/openbsc/tests/Makefile.am @@ -1,4 +1,4 @@ -SUBDIRS = gsm0408 db channel mgcp gprs si abis +SUBDIRS = gsm0408 db channel mgcp gprs si abis gbproxy if BUILD_NAT SUBDIRS += bsc-nat bsc-nat-trie diff --git a/openbsc/tests/gbproxy/Makefile.am b/openbsc/tests/gbproxy/Makefile.am new file mode 100644 index 0000000..1323d44 --- /dev/null +++ b/openbsc/tests/gbproxy/Makefile.am @@ -0,0 +1,18 @@ +AM_CPPFLAGS = $(all_includes) -I$(top_srcdir)/include +AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) +AM_LDFLAGS = $(COVERAGE_LDFLAGS) + +EXTRA_DIST = gbproxy_test.ok + +noinst_PROGRAMS = gbproxy_test + +gbproxy_test_SOURCES = gbproxy_test.c +gbproxy_test_LDADD = \ + $(top_builddir)/src/gprs/gb_proxy.o \ + $(top_builddir)/src/libcommon/libcommon.a \ + $(top_builddir)/src/libbsc/libbsc.a \ + $(top_builddir)/src/libtrau/libtrau.a \ + $(LIBOSMOCORE_LIBS) $(LIBOSMOGB_LIBS) \ + $(LIBOSMOGSM_LIBS) $(LIBOSMOVTY_LIBS) \ + $(LIBOSMOABIS_LIBS) \ + -lrt diff --git a/openbsc/tests/gbproxy/gbproxy_test.c b/openbsc/tests/gbproxy/gbproxy_test.c new file mode 100644 index 0000000..22183f4 --- /dev/null +++ b/openbsc/tests/gbproxy/gbproxy_test.c @@ -0,0 +1,403 @@ +/* test routines for gbproxy + * send NS messages to the gbproxy and dumps what happens + * (C) 2013 by sysmocom s.f.m.c. GmbH + * Author: Jacob Erlbeck <jerlbeck(a)sysmocom.de> + */ + +#undef _GNU_SOURCE +#define _GNU_SOURCE + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include <getopt.h> +#include <dlfcn.h> +#include <sys/types.h> +#include <sys/socket.h> + +#include <osmocom/core/msgb.h> +#include <osmocom/core/application.h> +#include <osmocom/core/utils.h> +#include <osmocom/core/logging.h> +#include <osmocom/core/talloc.h> +#include <osmocom/core/signal.h> +#include <osmocom/gprs/gprs_msgb.h> +#include <osmocom/gprs/gprs_ns.h> +#include <osmocom/gprs/gprs_bssgp.h> + +#include <openbsc/gb_proxy.h> + +#define REMOTE_BSS_ADDR 0x01020304 +#define REMOTE_SGSN_ADDR 0x05060708 + +#define SGSN_NSEI 0xfffe + +struct gbproxy_config gbcfg; + +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_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_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); +} + +int gprs_ns_rcvmsg(struct gprs_ns_inst *nsi, struct msgb *msg, + struct sockaddr_in *saddr, enum gprs_ns_ll ll); + +/* override */ +int gprs_ns_callback(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, + struct msgb *msg, uint16_t bvci) +{ + printf("CALLBACK, event %d, msg length %d, bvci 0x%04x\n%s\n\n", + event, msgb_bssgp_len(msg), bvci, + osmo_hexdump(msgb_bssgph(msg), msgb_bssgp_len(msg))); + + switch (event) { + case GPRS_NS_EVT_UNIT_DATA: + return gbprox_rcvmsg(msg, nsvc, bvci); + default: + break; + } + return 0; +} + +/* override */ +ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, + const struct sockaddr *dest_addr, socklen_t addrlen) +{ + 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 (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); + + return len; +} + +/* override */ +int gprs_ns_sendmsg(struct gprs_ns_inst *nsi, struct msgb *msg) +{ + uint16_t bvci = msgb_bvci(msg); + uint16_t nsei = msgb_nsei(msg); + + unsigned char *buf = msg->data; + size_t len = msg->len; + + 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 0; +} + +/* Signal handler for signals from NS layer */ +static int test_signal(unsigned int subsys, unsigned int signal, + void *handler_data, void *signal_data) +{ + struct ns_signal_data *nssd = signal_data; + int rc; + + if (subsys != SS_L_NS) + return 0; + + switch (signal) { + case S_NS_RESET: + printf("==> got signal NS_RESET, NS-VC 0x%04x/%s\n", + nssd->nsvc->nsvci, + gprs_ns_format_peer(nssd->nsvc)); + break; + + case S_NS_ALIVE_EXP: + printf("==> got signal NS_ALIVE_EXP, NS-VC 0x%04x/%s\n", + nssd->nsvc->nsvci, + gprs_ns_format_peer(nssd->nsvc)); + break; + + case S_NS_BLOCK: + printf("==> got signal NS_BLOCK, NS-VC 0x%04x/%s\n", + nssd->nsvc->nsvci, + gprs_ns_format_peer(nssd->nsvc)); + break; + + case S_NS_UNBLOCK: + printf("==> got signal NS_UNBLOCK, NS-VC 0x%04x/%s\n", + nssd->nsvc->nsvci, + gprs_ns_format_peer(nssd->nsvc)); + break; + + case S_NS_REPLACED: + printf("==> got signal NS_REPLACED: 0x%04x/%s", + nssd->old_nsvc->nsvci, + gprs_ns_format_peer(nssd->old_nsvc)); + printf(" -> 0x%04x/%s\n", + nssd->nsvc->nsvci, + gprs_ns_format_peer(nssd->nsvc)); + break; + + default: + printf("==> got signal %d, NS-VC 0x%04x/%s\n", signal, + nssd->nsvc->nsvci, + gprs_ns_format_peer(nssd->nsvc)); + break; + } + printf("\n"); + rc = gbprox_signal(subsys, signal, handler_data, signal_data); + + switch (signal) { + case S_NS_REPLACED: + /* invalidate NSVCI */ + nssd->old_nsvc->nsvci = 0xfffe; + nssd->old_nsvc->nsvci_is_valid = 0; + break; + + default: + break; + } + return rc; +} + +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) +{ + 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); + + printf("PROCESSING %s from 0x%08x:%d\n%s\n\n", + text, ntohl(peer->sin_addr.s_addr), ntohs(peer->sin_port), + osmo_hexdump(data, data_len)); + + ret = gprs_ns_rcvmsg(nsi, msg, peer, GPRS_NS_LL_UDP); + + printf("result (%s) = %d\n\n", text, ret); + + msgb_free(msg); + + return ret; +} + +static void gprs_dump_nsi(struct gprs_ns_inst *nsi) +{ + struct gprs_nsvc *nsvc; + + 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", + nsvc->nsvci, nsvc->nsei, + ntohl(peer->sin_addr.s_addr), ntohs(peer->sin_port) + ); + } + printf("\n"); +} + +static void test_gbproxy() +{ + struct gprs_ns_inst *nsi = gprs_ns_instantiate(gprs_ns_callback, NULL); + struct sockaddr_in bss_peer[4] = {{0},}; + + bssgp_nsi = nsi; + gbcfg.nsi = bssgp_nsi; + gbcfg.nsip_sgsn_nsei = SGSN_NSEI; + + bss_peer[0].sin_family = AF_INET; + bss_peer[0].sin_port = htons(1111); + bss_peer[0].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); + bss_peer[1].sin_family = AF_INET; + bss_peer[1].sin_port = htons(2222); + bss_peer[1].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); + bss_peer[2].sin_family = AF_INET; + bss_peer[2].sin_port = htons(3333); + bss_peer[2].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); + bss_peer[3].sin_family = AF_INET; + bss_peer[3].sin_port = htons(4444); + bss_peer[3].sin_addr.s_addr = htonl(REMOTE_BSS_ADDR); + + printf("--- Initialise BSS 1 ---\n\n"); + + setup_ns(nsi, &bss_peer[0], 0x1001, 0x1000); + setup_bssgp(nsi, &bss_peer[0], 0x1002); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + printf("--- Initialise BSS 2 ---\n\n"); + + setup_ns(nsi, &bss_peer[1], 0x2001, 0x2000); + setup_bssgp(nsi, &bss_peer[1], 0x2002); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + printf("--- Move BSS 1 to new port ---\n\n"); + + setup_ns(nsi, &bss_peer[2], 0x1001, 0x1000); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + printf("--- Move BSS 2 to former BSS 1 port ---\n\n"); + + setup_ns(nsi, &bss_peer[0], 0x2001, 0x2000); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + printf("--- Move BSS 1 to current BSS 2 port ---\n\n"); + + setup_ns(nsi, &bss_peer[0], 0x2001, 0x2000); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + printf("--- Move BSS 2 to new port ---\n\n"); + + setup_ns(nsi, &bss_peer[3], 0x2001, 0x2000); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + printf("--- Move BSS 2 to former BSS 1 port ---\n\n"); + + setup_ns(nsi, &bss_peer[2], 0x2001, 0x2000); + gprs_dump_nsi(nsi); + gbprox_dump_peers(stdout, 0); + + gprs_ns_destroy(nsi); + nsi = NULL; +} + + +static struct log_info info = {}; + +int main(int argc, char **argv) +{ + osmo_init_logging(&info); + log_set_use_color(osmo_stderr_target, 0); + log_set_print_filename(osmo_stderr_target, 0); + osmo_signal_register_handler(SS_L_NS, &test_signal, NULL); + + printf("===== NS protocol test START\n"); + test_gbproxy(); + printf("===== NS protocol test END\n\n"); + + exit(EXIT_SUCCESS); +} diff --git a/openbsc/tests/gbproxy/gbproxy_test.ok b/openbsc/tests/gbproxy/gbproxy_test.ok new file mode 100644 index 0000000..da4158d --- /dev/null +++ b/openbsc/tests/gbproxy/gbproxy_test.ok @@ -0,0 +1,357 @@ +===== NS protocol test START +--- Initialise BSS 1 --- + +Setup NS-VC: remote 0x01020304:1111, NSVCI 0x1001(4097), NSEI 0x1000(4096) + +PROCESSING RESET from 0x01020304:1111 +02 00 81 01 01 82 10 01 04 82 10 00 + +==> got signal NS_RESET, NS-VC 0x1001/1.2.3.4:1111 + +MESSAGE to BSS, msg length 9 +03 01 82 10 01 04 82 10 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +PROCESSING ALIVE from 0x01020304:1111 +0a + +MESSAGE to BSS, msg length 1 +0b + +result (ALIVE) = 1 + +PROCESSING UNBLOCK from 0x01020304:1111 +06 + +==> got signal NS_UNBLOCK, NS-VC 0x1001/1.2.3.4:1111 + +MESSAGE to BSS, msg length 1 +07 + +result (UNBLOCK) = 1 + +PROCESSING ALIVE_ACK from 0x01020304:1111 +0b + +result (ALIVE_ACK) = 0 + +Setup BSSGP: remote 0x01020304:1111, BVCI 0x1002(4098) + +PROCESSING UNITDATA from 0x01020304:1111 +00 00 00 00 22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +CALLBACK, event 0, msg length 22, bvci 0x0000 +22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 22 +22 04 82 10 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +result (UNITDATA) = 0 + +Current NS-VCIs: + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111 + +Peers: + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +--- Initialise BSS 2 --- + +Setup NS-VC: remote 0x01020304:2222, NSVCI 0x2001(8193), NSEI 0x2000(8192) + +PROCESSING RESET from 0x01020304:2222 +02 00 81 01 01 82 20 01 04 82 20 00 + +==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:2222 + +MESSAGE to BSS, msg length 9 +03 01 82 20 01 04 82 20 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +PROCESSING ALIVE from 0x01020304:2222 +0a + +MESSAGE to BSS, msg length 1 +0b + +result (ALIVE) = 1 + +PROCESSING UNBLOCK from 0x01020304:2222 +06 + +==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:2222 + +MESSAGE to BSS, msg length 1 +07 + +result (UNBLOCK) = 1 + +PROCESSING ALIVE_ACK from 0x01020304:2222 +0b + +result (ALIVE_ACK) = 0 + +Setup BSSGP: remote 0x01020304:2222, BVCI 0x2002(8194) + +PROCESSING UNITDATA from 0x01020304:2222 +00 00 00 00 22 04 82 20 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +CALLBACK, event 0, msg length 22, bvci 0x0000 +22 04 82 20 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +NS UNITDATA MESSAGE to SGSN, BVCI 0x0000, msg length 22 +22 04 82 20 02 07 81 08 08 88 10 20 30 40 50 60 10 00 00 00 00 00 + +result (UNITDATA) = 0 + +Current NS-VCIs: + VCI 0x2001, NSEI 0x2000, peer 0x01020304:2222 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:1111 + +Peers: + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +--- Move BSS 1 to new port --- + +Setup NS-VC: remote 0x01020304:3333, NSVCI 0x1001(4097), NSEI 0x1000(4096) + +PROCESSING RESET from 0x01020304:3333 +02 00 81 01 01 82 10 01 04 82 10 00 + +==> got signal NS_RESET, NS-VC 0x1001/1.2.3.4:3333 + +MESSAGE to BSS, msg length 9 +03 01 82 10 01 04 82 10 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +PROCESSING ALIVE from 0x01020304:3333 +0a + +MESSAGE to BSS, msg length 1 +0b + +result (ALIVE) = 1 + +PROCESSING UNBLOCK from 0x01020304:3333 +06 + +==> got signal NS_UNBLOCK, NS-VC 0x1001/1.2.3.4:3333 + +MESSAGE to BSS, msg length 1 +07 + +result (UNBLOCK) = 1 + +PROCESSING ALIVE_ACK from 0x01020304:3333 +0b + +result (ALIVE_ACK) = 0 + +Current NS-VCIs: + VCI 0x2001, NSEI 0x2000, peer 0x01020304:2222 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:3333 + +Peers: + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +--- Move BSS 2 to former BSS 1 port --- + +Setup NS-VC: remote 0x01020304:1111, NSVCI 0x2001(8193), NSEI 0x2000(8192) + +PROCESSING RESET from 0x01020304:1111 +02 00 81 01 01 82 20 01 04 82 20 00 + +==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:1111 + +MESSAGE to BSS, msg length 9 +03 01 82 20 01 04 82 20 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +PROCESSING ALIVE from 0x01020304:1111 +0a + +MESSAGE to BSS, msg length 1 +0b + +result (ALIVE) = 1 + +PROCESSING UNBLOCK from 0x01020304:1111 +06 + +==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:1111 + +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 0x2001, NSEI 0x2000, peer 0x01020304:1111 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:3333 + +Peers: + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +--- Move BSS 1 to current BSS 2 port --- + +Setup NS-VC: remote 0x01020304:1111, NSVCI 0x2001(8193), NSEI 0x2000(8192) + +PROCESSING RESET from 0x01020304:1111 +02 00 81 01 01 82 20 01 04 82 20 00 + +==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:1111 + +MESSAGE to BSS, msg length 9 +03 01 82 20 01 04 82 20 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +PROCESSING ALIVE from 0x01020304:1111 +0a + +MESSAGE to BSS, msg length 1 +0b + +result (ALIVE) = 1 + +PROCESSING UNBLOCK from 0x01020304:1111 +06 + +==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:1111 + +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 0x2001, NSEI 0x2000, peer 0x01020304:1111 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:3333 + +Peers: + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +--- Move BSS 2 to new port --- + +Setup NS-VC: remote 0x01020304:4444, NSVCI 0x2001(8193), NSEI 0x2000(8192) + +PROCESSING RESET from 0x01020304:4444 +02 00 81 01 01 82 20 01 04 82 20 00 + +==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:4444 + +MESSAGE to BSS, msg length 9 +03 01 82 20 01 04 82 20 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +PROCESSING ALIVE from 0x01020304:4444 +0a + +MESSAGE to BSS, msg length 1 +0b + +result (ALIVE) = 1 + +PROCESSING UNBLOCK from 0x01020304:4444 +06 + +==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:4444 + +MESSAGE to BSS, msg length 1 +07 + +result (UNBLOCK) = 1 + +PROCESSING ALIVE_ACK from 0x01020304:4444 +0b + +result (ALIVE_ACK) = 0 + +Current NS-VCIs: + VCI 0x2001, NSEI 0x2000, peer 0x01020304:4444 + VCI 0x1001, NSEI 0x1000, peer 0x01020304:3333 + +Peers: + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 4096, BVCI 4098, not blocked, RAC 10-32-16464-96 +--- Move BSS 2 to former BSS 1 port --- + +Setup NS-VC: remote 0x01020304:3333, NSVCI 0x2001(8193), NSEI 0x2000(8192) + +PROCESSING RESET from 0x01020304:3333 +02 00 81 01 01 82 20 01 04 82 20 00 + +==> got signal NS_REPLACED: 0x2001/1.2.3.4:4444 -> 0x2001/1.2.3.4:3333 + +==> got signal NS_RESET, NS-VC 0x2001/1.2.3.4:3333 + +MESSAGE to BSS, msg length 9 +03 01 82 20 01 04 82 20 00 + +MESSAGE to BSS, msg length 1 +0a + +result (RESET) = 9 + +PROCESSING ALIVE from 0x01020304:3333 +0a + +MESSAGE to BSS, msg length 1 +0b + +result (ALIVE) = 1 + +PROCESSING UNBLOCK from 0x01020304:3333 +06 + +==> got signal NS_UNBLOCK, NS-VC 0x2001/1.2.3.4:3333 + +MESSAGE to BSS, msg length 1 +07 + +result (UNBLOCK) = 1 + +PROCESSING ALIVE_ACK from 0x01020304:3333 +0b + +result (ALIVE_ACK) = 0 + +Current NS-VCIs: + VCI 0x2001, NSEI 0x2000, peer 0x01020304:3333 + +Peers: + NSEI 8192, BVCI 8194, not blocked, RAC 10-32-16464-96 + NSEI 8192, BVCI 4098, not blocked, RAC 10-32-16464-96 +===== NS protocol test END + diff --git a/openbsc/tests/testsuite.at b/openbsc/tests/testsuite.at index 27225a8..76110f5 100644 --- a/openbsc/tests/testsuite.at +++ b/openbsc/tests/testsuite.at @@ -75,3 +75,9 @@ AT_CHECK([test "$enable_bsc_test" != no || exit 77]) cat $abs_srcdir/bsc/bsc_test.ok > expout AT_CHECK([$abs_top_builddir/tests/bsc/bsc_test], [], [expout], [ignore]) AT_CLEANUP + +AT_SETUP([gbproxy]) +AT_KEYWORDS([gbproxy]) +cat $abs_srcdir/gbproxy/gbproxy_test.ok > expout +AT_CHECK([$abs_top_builddir/tests/gbproxy/gbproxy_test], [], [expout], [ignore]) +AT_CLEANUP -- 1.7.9.5

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OpenBSC October 2013