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authorAlexander Couzens <lynxis@fe80.eu>2019-05-25 05:41:18 +0200
committerAlexander Couzens <lynxis@fe80.eu>2019-06-07 01:17:53 +0200
commit5c3783b7e83b586d72304d798b195bffa1a53ba2 (patch)
tree369326edd4143ea94095141e2e90ee56d010407f
parenta558ad426951f6f536c4bc7bef302afbd3573ce6 (diff)
gprs_bssgp_pcu: explicit allocate & initialize bssgp_nsi instance
The instance bssgp_nsi is a global instance to be used by all NS related functions. Previous the PCU allocated and initialized the bssgp_nsi instance when (re-)connecting and freeing on disconnect. The problem of the implicit initialisation is gprs_ns_vty_init(bssgp_nsi). All vty init functions must be called before the configuration is read, otherwise a previous vty written configuration is invalid. Furthermore the vty modifications to the `ns` object were lost when the PCU has to reconnect to the SGSN. Fixes: OS#4024 Change-Id: I2aa53ea54e9352577f6280ad7b9d1d9da9f57eaf
-rw-r--r--src/gprs_bssgp_pcu.cpp20
-rw-r--r--src/pcu_main.cpp9
-rw-r--r--tests/emu/pcu_emu.cpp7
-rw-r--r--tests/tbf/TbfTest.cpp30
4 files changed, 49 insertions, 17 deletions
diff --git a/src/gprs_bssgp_pcu.cpp b/src/gprs_bssgp_pcu.cpp
index 50f10db..22abc6b 100644
--- a/src/gprs_bssgp_pcu.cpp
+++ b/src/gprs_bssgp_pcu.cpp
@@ -875,11 +875,6 @@ static int gprs_ns_reconnect(struct gprs_nsvc *nsvc)
{
struct gprs_nsvc *nsvc2;
- if (!bssgp_nsi) {
- LOGP(DBSSGP, LOGL_ERROR, "NS instance does not exist\n");
- return -EINVAL;
- }
-
if (nsvc != the_pcu.nsvc) {
LOGP(DBSSGP, LOGL_ERROR, "NSVC is invalid\n");
return -EBADF;
@@ -913,12 +908,6 @@ struct gprs_bssgp_pcu *gprs_bssgp_create_and_connect(struct gprs_rlcmac_bts *bts
the_pcu.bts = bts;
- bssgp_nsi = gprs_ns_instantiate(&gprs_bssgp_ns_cb, tall_pcu_ctx);
- if (!bssgp_nsi) {
- LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
- return NULL;
- }
- gprs_ns_vty_init(bssgp_nsi);
/* don't specify remote IP/port if SNS dialect is in use; Doing so would
* issue a connect() on the socket, which prevents us to dynamically communicate
* with any number of IP-SNS endpoints on the SGSN side */
@@ -930,8 +919,7 @@ struct gprs_bssgp_pcu *gprs_bssgp_create_and_connect(struct gprs_rlcmac_bts *bts
rc = gprs_ns_nsip_listen(bssgp_nsi);
if (rc < 0) {
LOGP(DBSSGP, LOGL_ERROR, "Failed to create socket\n");
- gprs_ns_destroy(bssgp_nsi);
- bssgp_nsi = NULL;
+ gprs_ns_close(bssgp_nsi);
return NULL;
}
@@ -945,8 +933,7 @@ struct gprs_bssgp_pcu *gprs_bssgp_create_and_connect(struct gprs_rlcmac_bts *bts
the_pcu.nsvc = gprs_ns_nsip_connect(bssgp_nsi, &dest, nsei, nsvci);
if (!the_pcu.nsvc) {
LOGP(DBSSGP, LOGL_ERROR, "Failed to create NSVCt\n");
- gprs_ns_destroy(bssgp_nsi);
- bssgp_nsi = NULL;
+ gprs_ns_close(bssgp_nsi);
return NULL;
}
@@ -954,8 +941,7 @@ struct gprs_bssgp_pcu *gprs_bssgp_create_and_connect(struct gprs_rlcmac_bts *bts
if (!the_pcu.bctx) {
LOGP(DBSSGP, LOGL_ERROR, "Failed to create BSSGP context\n");
the_pcu.nsvc = NULL;
- gprs_ns_destroy(bssgp_nsi);
- bssgp_nsi = NULL;
+ gprs_ns_close(bssgp_nsi);
return NULL;
}
the_pcu.bctx->ra_id.mcc = spoof_mcc ? : mcc;
diff --git a/src/pcu_main.cpp b/src/pcu_main.cpp
index 1003e3c..fa075cd 100644
--- a/src/pcu_main.cpp
+++ b/src/pcu_main.cpp
@@ -33,6 +33,8 @@
#include <bts.h>
#include <gprs_coding_scheme.h>
#include <osmocom/pcu/pcuif_proto.h>
+#include "gprs_bssgp_pcu.h"
+
extern "C" {
#include "pcu_vty.h"
#include <osmocom/gprs/gprs_bssgp.h>
@@ -291,6 +293,13 @@ int main(int argc, char *argv[])
else
fprintf(stderr, "Failed to initialize GSMTAP for %s\n", gsmtap_addr);
+ bssgp_nsi = gprs_ns_instantiate(&gprs_bssgp_ns_cb, tall_pcu_ctx);
+ if (!bssgp_nsi) {
+ LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
+ exit(1);
+ }
+ gprs_ns_vty_init(bssgp_nsi);
+
rc = vty_read_config_file(config_file, NULL);
if (rc < 0 && config_given) {
fprintf(stderr, "Failed to parse the config file: '%s'\n",
diff --git a/tests/emu/pcu_emu.cpp b/tests/emu/pcu_emu.cpp
index 354a328..e0190bf 100644
--- a/tests/emu/pcu_emu.cpp
+++ b/tests/emu/pcu_emu.cpp
@@ -113,6 +113,13 @@ int main(int argc, char **argv)
msgb_talloc_ctx_init(tall_pcu_ctx, 0);
osmo_init_logging2(tall_pcu_ctx, &gprs_log_info);
+
+ bssgp_nsi = gprs_ns_instantiate(&gprs_bssgp_ns_cb, tall_pcu_ctx);
+ if (!bssgp_nsi) {
+ LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
+ abort();
+ }
+
vty_init(&pcu_vty_info);
pcu_vty_init(&gprs_log_info);
diff --git a/tests/tbf/TbfTest.cpp b/tests/tbf/TbfTest.cpp
index 151e7fa..675cf89 100644
--- a/tests/tbf/TbfTest.cpp
+++ b/tests/tbf/TbfTest.cpp
@@ -447,6 +447,12 @@ static void test_tbf_exhaustion()
printf("=== start %s ===\n", __func__);
+ bssgp_nsi = gprs_ns_instantiate(&gprs_bssgp_ns_cb, tall_pcu_ctx);
+ if (!bssgp_nsi) {
+ LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
+ abort();
+ }
+
bts = the_bts.bts_data();
setup_bts(&the_bts, ts_no);
gprs_bssgp_create_and_connect(bts, 33001, 0, 33001, 1234, 1234, 1234, 1, 1, false, 0, 0, 0);
@@ -485,6 +491,12 @@ static void test_tbf_dl_llc_loss()
uint8_t buf[19];
+ bssgp_nsi = gprs_ns_instantiate(&gprs_bssgp_ns_cb, tall_pcu_ctx);
+ if (!bssgp_nsi) {
+ LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
+ abort();
+ }
+
printf("=== start %s ===\n", __func__);
bts = the_bts.bts_data();
@@ -2171,6 +2183,12 @@ static void test_tbf_gprs_egprs()
printf("=== start %s ===\n", __func__);
+ bssgp_nsi = gprs_ns_instantiate(&gprs_bssgp_ns_cb, tall_pcu_ctx);
+ if (!bssgp_nsi) {
+ LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
+ abort();
+ }
+
bts = the_bts.bts_data();
setup_bts(&the_bts, ts_no);
@@ -2227,6 +2245,12 @@ static void test_tbf_ws()
printf("=== start %s ===\n", __func__);
+ bssgp_nsi = gprs_ns_instantiate(&gprs_bssgp_ns_cb, tall_pcu_ctx);
+ if (!bssgp_nsi) {
+ LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
+ abort();
+ }
+
bts = the_bts.bts_data();
setup_bts(&the_bts, ts_no);
@@ -2264,6 +2288,12 @@ static void test_tbf_update_ws(void)
printf("=== start %s ===\n", __func__);
+ bssgp_nsi = gprs_ns_instantiate(&gprs_bssgp_ns_cb, tall_pcu_ctx);
+ if (!bssgp_nsi) {
+ LOGP(DBSSGP, LOGL_ERROR, "Failed to create NS instance\n");
+ abort();
+ }
+
bts = the_bts.bts_data();
setup_bts(&the_bts, ts_no);