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authorHarald Welte <laforge@gnumonks.org>2017-08-12 13:43:54 +0200
committerHarald Welte <laforge@gnumonks.org>2017-08-14 12:04:52 +0000
commit183070bcede412e38268c7f298262710b1351f6e (patch)
treee799a13910a196f1f92f94017f14ec12b3781ce0
parent53552a303e8089d288c0caadb2b462a898589a01 (diff)
Migrate from gprs_apn_to_str() to libosmocore osmo_apn_to_str()
In 2015, Jacob moved/copied related functions to libosmocore, but for some reason didn't remove the copies here. Let's follow-up on that and remove duplicated code. The libosmocore commit introducing osmo_apn_to_str() was 8114294bf29ac6e44822c0ae43d4b0819f11b022 Change-Id: I7315ffcbed8a54cca2056f313bb7783ad82d0ee9
-rw-r--r--openbsc/include/openbsc/gprs_utils.h1
-rw-r--r--openbsc/src/gprs/gb_proxy_patch.c7
-rw-r--r--openbsc/src/gprs/gb_proxy_vty.c3
-rw-r--r--openbsc/src/gprs/gprs_sgsn.c3
-rw-r--r--openbsc/src/gprs/gprs_subscriber.c3
-rw-r--r--openbsc/src/gprs/gprs_utils.c28
-rw-r--r--openbsc/src/gprs/gtphub.c4
-rw-r--r--openbsc/src/gprs/sgsn_cdr.c3
-rw-r--r--openbsc/src/gprs/sgsn_vty.c17
-rw-r--r--openbsc/tests/gprs/gprs_test.c96
-rw-r--r--openbsc/tests/gtphub/Makefile.am2
11 files changed, 19 insertions, 148 deletions
diff --git a/openbsc/include/openbsc/gprs_utils.h b/openbsc/include/openbsc/gprs_utils.h
index 603605c7a..574f5c50c 100644
--- a/openbsc/include/openbsc/gprs_utils.h
+++ b/openbsc/include/openbsc/gprs_utils.h
@@ -30,7 +30,6 @@ struct gprs_ra_id;
struct msgb *gprs_msgb_copy(const struct msgb *msg, const char *name);
int gprs_msgb_resize_area(struct msgb *msg, uint8_t *area,
size_t old_size, size_t new_size);
-char *gprs_apn_to_str(char *out_str, const uint8_t *apn_enc, size_t rest_chars);
int gprs_str_to_apn(uint8_t *apn_enc, size_t max_len, const char *str);
/* GSM 04.08, 10.5.7.3 GPRS Timer */
diff --git a/openbsc/src/gprs/gb_proxy_patch.c b/openbsc/src/gprs/gb_proxy_patch.c
index 7bddc4494..210fb2b96 100644
--- a/openbsc/src/gprs/gb_proxy_patch.c
+++ b/openbsc/src/gprs/gb_proxy_patch.c
@@ -28,6 +28,7 @@
#include <osmocom/gprs/protocol/gsm_08_18.h>
#include <osmocom/core/rate_ctr.h>
+#include <osmocom/gsm/apn.h>
/* patch RA identifier in place */
static void gbproxy_patch_raid(uint8_t *raid_enc, struct gbproxy_peer *peer,
@@ -101,7 +102,7 @@ static void gbproxy_patch_apn_ie(struct msgb *msg,
LOGP(DGPRS, LOGL_DEBUG,
"Patching %s to SGSN: Removing APN '%s'\n",
log_text,
- gprs_apn_to_str(str1, apn, apn_len));
+ osmo_apn_to_str(str1, apn, apn_len));
*new_apn_ie_len = 0;
gprs_msgb_resize_area(msg, apn_ie, apn_ie_len, 0);
@@ -116,8 +117,8 @@ static void gbproxy_patch_apn_ie(struct msgb *msg,
"Patching %s to SGSN: "
"Replacing APN '%s' -> '%s'\n",
log_text,
- gprs_apn_to_str(str1, apn, apn_len),
- gprs_apn_to_str(str2, peer->cfg->core_apn,
+ osmo_apn_to_str(str1, apn, apn_len),
+ osmo_apn_to_str(str2, peer->cfg->core_apn,
peer->cfg->core_apn_size));
*new_apn_ie_len = peer->cfg->core_apn_size + 2;
diff --git a/openbsc/src/gprs/gb_proxy_vty.c b/openbsc/src/gprs/gb_proxy_vty.c
index 933b6b010..86d65a8e3 100644
--- a/openbsc/src/gprs/gb_proxy_vty.c
+++ b/openbsc/src/gprs/gb_proxy_vty.c
@@ -29,6 +29,7 @@
#include <openbsc/gsm_04_08.h>
#include <osmocom/gprs/gprs_ns.h>
+#include <osmocom/gsm/apn.h>
#include <openbsc/debug.h>
#include <openbsc/gb_proxy.h>
@@ -107,7 +108,7 @@ static int config_write_gbproxy(struct vty *vty)
if (g_cfg->core_apn_size > 0) {
char str[500] = {0};
vty_out(vty, " core-access-point-name %s%s",
- gprs_apn_to_str(str, g_cfg->core_apn,
+ osmo_apn_to_str(str, g_cfg->core_apn,
g_cfg->core_apn_size),
VTY_NEWLINE);
} else {
diff --git a/openbsc/src/gprs/gprs_sgsn.c b/openbsc/src/gprs/gprs_sgsn.c
index 3c363bc8a..acaf78187 100644
--- a/openbsc/src/gprs/gprs_sgsn.c
+++ b/openbsc/src/gprs/gprs_sgsn.c
@@ -30,6 +30,7 @@
#include <osmocom/gprs/gprs_ns.h>
#include <osmocom/gprs/gprs_bssgp.h>
#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
+#include <osmocom/gsm/apn.h>
#include <openbsc/gprs_subscriber.h>
#include <openbsc/debug.h>
@@ -757,7 +758,7 @@ struct sgsn_ggsn_ctx *sgsn_mm_ctx_find_ggsn_ctx(struct sgsn_mm_ctx *mmctx,
return NULL;
}
- gprs_apn_to_str(req_apn_str,
+ osmo_apn_to_str(req_apn_str,
TLVP_VAL(tp, GSM48_IE_GSM_APN),
TLVP_LEN(tp, GSM48_IE_GSM_APN));
diff --git a/openbsc/src/gprs/gprs_subscriber.c b/openbsc/src/gprs/gprs_subscriber.c
index c90ba7006..d13bd8393 100644
--- a/openbsc/src/gprs/gprs_subscriber.c
+++ b/openbsc/src/gprs/gprs_subscriber.c
@@ -22,6 +22,7 @@
#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
#include <osmocom/gsm/gsup.h>
+#include <osmocom/gsm/apn.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/logging.h>
#include <openbsc/gprs_subscriber.h>
@@ -370,7 +371,7 @@ static void gprs_subscr_gsup_insert_data(struct gprs_subscr *subscr,
OSMO_ASSERT(pdp_data != NULL);
pdp_data->pdp_type = pdp_info->pdp_type;
- gprs_apn_to_str(pdp_data->apn_str,
+ osmo_apn_to_str(pdp_data->apn_str,
pdp_info->apn_enc, pdp_info->apn_enc_len);
memcpy(pdp_data->qos_subscribed, pdp_info->qos_enc, pdp_info->qos_enc_len);
pdp_data->qos_subscribed_len = pdp_info->qos_enc_len;
diff --git a/openbsc/src/gprs/gprs_utils.c b/openbsc/src/gprs/gprs_utils.c
index 64ed9788d..91a09d2db 100644
--- a/openbsc/src/gprs/gprs_utils.c
+++ b/openbsc/src/gprs/gprs_utils.c
@@ -114,34 +114,6 @@ int gprs_msgb_resize_area(struct msgb *msg, uint8_t *area,
return 0;
}
-/* TODO: Move these conversion functions to a utils file. */
-/* TODO: consolidate with gprs_apn2str(). */
-/** memmove apn_enc to out_str, replacing the length octets in apn_enc with '.'
- * (omitting the first one) and terminating with a '\0'.
- * out_str needs to have rest_chars amount of bytes or 1 whatever is bigger.
- */
-char * gprs_apn_to_str(char *out_str, const uint8_t *apn_enc, size_t rest_chars)
-{
- char *str = out_str;
-
- while (rest_chars > 0 && apn_enc[0]) {
- size_t label_size = apn_enc[0];
- if (label_size + 1 > rest_chars)
- return NULL;
-
- memmove(str, apn_enc + 1, label_size);
- str += label_size;
- rest_chars -= label_size + 1;
- apn_enc += label_size + 1;
-
- if (rest_chars)
- *(str++) = '.';
- }
- str[0] = '\0';
-
- return out_str;
-}
-
int gprs_str_to_apn(uint8_t *apn_enc, size_t max_len, const char *str)
{
uint8_t *last_len_field;
diff --git a/openbsc/src/gprs/gtphub.c b/openbsc/src/gprs/gtphub.c
index 5e7520e39..0a8e375ab 100644
--- a/openbsc/src/gprs/gtphub.c
+++ b/openbsc/src/gprs/gtphub.c
@@ -42,6 +42,8 @@
#include <osmocom/core/rate_ctr.h>
#include <osmocom/core/stats.h>
+#include <osmocom/gsm/apn.h>
+
static const int GTPH_GC_TICK_SECONDS = 1;
@@ -498,7 +500,7 @@ static int get_ie_apn_str(union gtpie_member *ie[], const char **apn_str)
len = sizeof(apn_buf) - 1;
apn_buf[len] = '\0';
- *apn_str = gprs_apn_to_str(apn_buf, (uint8_t*)apn_buf, len);
+ *apn_str = osmo_apn_to_str(apn_buf, (uint8_t*)apn_buf, len);
if (!(*apn_str)) {
LOG(LOGL_ERROR, "APN IE: present but cannot be decoded: %s\n",
osmo_hexdump((uint8_t*)apn_buf, len));
diff --git a/openbsc/src/gprs/sgsn_cdr.c b/openbsc/src/gprs/sgsn_cdr.c
index 091089610..16ea9d47a 100644
--- a/openbsc/src/gprs/sgsn_cdr.c
+++ b/openbsc/src/gprs/sgsn_cdr.c
@@ -22,6 +22,7 @@
#include <openbsc/signal.h>
#include <openbsc/gprs_utils.h>
#include <openbsc/debug.h>
+#include <osmocom/gsm/apn.h>
#include <openbsc/vty.h>
@@ -145,7 +146,7 @@ static void cdr_log_pdp(struct sgsn_instance *inst, const char *ev,
if (pdp->lib) {
- gprs_apn_to_str(apni, pdp->lib->apn_use.v, pdp->lib->apn_use.l);
+ osmo_apn_to_str(apni, pdp->lib->apn_use.v, pdp->lib->apn_use.l);
inet_ntop(AF_INET, &pdp->lib->hisaddr0.s_addr, ggsn_addr, sizeof(ggsn_addr));
extract_eua(&pdp->lib->eua, eua_addr);
}
diff --git a/openbsc/src/gprs/sgsn_vty.c b/openbsc/src/gprs/sgsn_vty.c
index 38f173c55..d4447e13a 100644
--- a/openbsc/src/gprs/sgsn_vty.c
+++ b/openbsc/src/gprs/sgsn_vty.c
@@ -28,6 +28,7 @@
#include <osmocom/core/utils.h>
#include <osmocom/core/rate_ctr.h>
#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
+#include <osmocom/gsm/apn.h>
#include <openbsc/debug.h>
#include <openbsc/sgsn.h>
@@ -110,7 +111,6 @@ DECLARE_TIMER(3397, "Wait for DEACT AA PDP CTX ACK timer (s)")
#define GSM48_MAX_APN_LEN 102 /* 10.5.6.1 */
-/* TODO: consolidate with gprs_apn_to_str(). */
/** Copy apn to a static buffer, replacing the length octets in apn_enc with '.'
* and terminating with a '\0'. Return the static buffer.
* len: the length of the encoded APN (which has no terminating zero).
@@ -118,23 +118,10 @@ DECLARE_TIMER(3397, "Wait for DEACT AA PDP CTX ACK timer (s)")
static char *gprs_apn2str(uint8_t *apn, unsigned int len)
{
static char apnbuf[GSM48_MAX_APN_LEN+1];
- unsigned int i = 0;
if (!apn)
return "";
-
- if (len > sizeof(apnbuf)-1)
- len = sizeof(apnbuf)-1;
-
- memcpy(apnbuf, apn, len);
- apnbuf[len] = '\0';
-
- /* replace the domain name step sizes with dots */
- while (i < len) {
- unsigned int step = apnbuf[i];
- apnbuf[i] = '.';
- i += step+1;
- }
+ osmo_apn_to_str(apnbuf, apn, len);
return apnbuf+1;
}
diff --git a/openbsc/tests/gprs/gprs_test.c b/openbsc/tests/gprs/gprs_test.c
index ff7740494..aac9bb896 100644
--- a/openbsc/tests/gprs/gprs_test.c
+++ b/openbsc/tests/gprs/gprs_test.c
@@ -48,101 +48,6 @@ static void test_8_4_2()
ASSERT_FALSE(nu_is_retransmission(479, 511)); // wrapped
}
-static void apn_round_trip(const uint8_t *input, size_t len, const char *wanted_output)
-{
- char output[len ? len : 1];
- uint8_t encoded[len + 50];
- char *out_str;
- int enc_len;
-
- /* decode and verify we have what we want */
- out_str = gprs_apn_to_str(output, input, len);
- OSMO_ASSERT(out_str);
- OSMO_ASSERT(out_str == &output[0]);
- OSMO_ASSERT(strlen(out_str) == strlen(wanted_output));
- OSMO_ASSERT(strcmp(out_str, wanted_output) == 0);
-
- /* encode and verify it */
- if (len != 0) {
- enc_len = gprs_str_to_apn(encoded, ARRAY_SIZE(encoded), wanted_output);
- OSMO_ASSERT(enc_len == len);
- OSMO_ASSERT(memcmp(encoded, input, enc_len) == 0);
- } else {
- enc_len = gprs_str_to_apn(encoded, 0, wanted_output);
- OSMO_ASSERT(enc_len == -1);
- }
-}
-
-static void test_gsm_03_03_apn(void)
-{
-
- {
- /* test invalid writes */
- const uint8_t ref[10] = { 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF };
- uint8_t output[10];
- int enc_len;
-
- memcpy(output, ref, ARRAY_SIZE(output));
- enc_len = gprs_str_to_apn(output, 0, "");
- OSMO_ASSERT(enc_len == -1);
- OSMO_ASSERT(memcmp(ref, output, ARRAY_SIZE(ref)) == 0);
-
- memcpy(output, ref, ARRAY_SIZE(output));
- enc_len = gprs_str_to_apn(output, 0, "foo");
- OSMO_ASSERT(enc_len == -1);
- OSMO_ASSERT(memcmp(ref, output, ARRAY_SIZE(ref)) == 0);
-
- memcpy(output, ref, ARRAY_SIZE(output));
- enc_len = gprs_str_to_apn(output, 1, "foo");
- OSMO_ASSERT(enc_len == -1);
- OSMO_ASSERT(memcmp(ref + 1, output + 1, ARRAY_SIZE(ref) - 1) == 0);
-
- memcpy(output, ref, ARRAY_SIZE(output));
- enc_len = gprs_str_to_apn(output, 2, "foo");
- OSMO_ASSERT(enc_len == -1);
- OSMO_ASSERT(memcmp(ref + 2, output + 2, ARRAY_SIZE(ref) - 2) == 0);
-
- memcpy(output, ref, ARRAY_SIZE(output));
- enc_len = gprs_str_to_apn(output, 3, "foo");
- OSMO_ASSERT(enc_len == -1);
- OSMO_ASSERT(memcmp(ref + 3, output + 3, ARRAY_SIZE(ref) - 3) == 0);
- }
-
- {
- /* single empty label */
- uint8_t input[] = { 0x0 };
- const char *output = "";
- apn_round_trip(input, ARRAY_SIZE(input), output);
- }
-
- {
- /* no label */
- uint8_t input[] = { };
- const char *output = "";
- apn_round_trip(input, ARRAY_SIZE(input), output);
- }
-
- {
- /* single label with A */
- uint8_t input[] = { 0x1, 65 };
- const char *output = "A";
- apn_round_trip(input, ARRAY_SIZE(input), output);
- OSMO_ASSERT(gprs_apn_to_str(NULL, input, ARRAY_SIZE(input) - 1) == NULL);
- }
-
- {
- uint8_t input[] = { 0x3, 65, 66, 67, 0x2, 90, 122 };
- const char *output = "ABC.Zz";
- char tmp[strlen(output) + 1];
- apn_round_trip(input, ARRAY_SIZE(input), output);
- OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 1) == NULL);
- OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 2) == NULL);
- OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 4) == NULL);
- OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 5) == NULL);
- OSMO_ASSERT(gprs_apn_to_str(tmp, input, ARRAY_SIZE(input) - 6) == NULL);
- }
-}
-
static void test_gprs_timer_enc_dec(void)
{
int i, u, secs, tmr;
@@ -228,7 +133,6 @@ int main(int argc, char **argv)
osmo_init_logging(&info);
test_8_4_2();
- test_gsm_03_03_apn();
test_gprs_timer_enc_dec();
printf("Done.\n");
diff --git a/openbsc/tests/gtphub/Makefile.am b/openbsc/tests/gtphub/Makefile.am
index 5c834b782..f2a6b888e 100644
--- a/openbsc/tests/gtphub/Makefile.am
+++ b/openbsc/tests/gtphub/Makefile.am
@@ -8,6 +8,7 @@ AM_CFLAGS = \
-ggdb3 \
$(LIBOSMOCORE_CFLAGS) \
$(LIBOSMOABIS_CFLAGS) \
+ $(LIBOSMOGSM_CFLAGS) \
$(LIBGTP_CFLAGS) \
$(NULL)
@@ -37,6 +38,7 @@ gtphub_test_LDADD = \
$(top_builddir)/src/gprs/gtphub.o \
$(top_builddir)/src/gprs/gprs_utils.o \
$(LIBOSMOCORE_LIBS) \
+ $(LIBOSMOGSM_LIBS) \
$(LIBGTP_LIBS) \
-lrt \
$(NULL)