move some gsm48 utility functions to libosmocore
* gsm48_generate_lai() gsm48_generate_mid_from_tmsi() gsm48_generate_mid_from_imsi()
* gsm48_cc_msg_names[]
diff --git a/openbsc/src/gsm_04_08_utils.c b/openbsc/src/gsm_04_08_utils.c
index 53c57ca..68f34f4 100644
--- a/openbsc/src/gsm_04_08_utils.c
+++ b/openbsc/src/gsm_04_08_utils.c
@@ -29,6 +29,7 @@
#include <netinet/in.h>
#include <osmocore/msgb.h>
+#include <osmocore/gsm48.h>
#include <openbsc/debug.h>
#include <openbsc/gsm_04_08.h>
#include <openbsc/transaction.h>
@@ -42,75 +43,6 @@
* or should OpenBSC always act as RTP relay/proxy in between (0) ? */
int ipacc_rtp_direct = 1;
-
-const char *gsm0408_cc_msg_names[] = {
- "unknown 0x00",
- "ALERTING",
- "CALL_PROC",
- "PROGRESS",
- "ESTAB",
- "SETUP",
- "ESTAB_CONF",
- "CONNECT",
- "CALL_CONF",
- "START_CC",
- "unknown 0x0a",
- "RECALL",
- "unknown 0x0c",
- "unknown 0x0d",
- "EMERG_SETUP",
- "CONNECT_ACK",
- "USER_INFO",
- "unknown 0x11",
- "unknown 0x12",
- "MODIFY_REJECT",
- "unknown 0x14",
- "unknown 0x15",
- "unknown 0x16",
- "MODIFY",
- "HOLD",
- "HOLD_ACK",
- "HOLD_REJ",
- "unknown 0x1b",
- "RETR",
- "RETR_ACK",
- "RETR_REJ",
- "MODIFY_COMPL",
- "unknown 0x20",
- "unknown 0x21",
- "unknown 0x22",
- "unknown 0x23",
- "unknown 0x24",
- "DISCONNECT",
- "unknown 0x26",
- "unknown 0x27",
- "unknown 0x28",
- "unknown 0x29",
- "RELEASE_COMPL",
- "unknown 0x2b",
- "unknown 0x2c",
- "RELEASE",
- "unknown 0x2e",
- "unknown 0x2f",
- "unknown 0x30",
- "STOP_DTMF",
- "STOP_DTMF_ACK",
- "unknown 0x33",
- "STATUS_ENQ",
- "START_DTMF",
- "START_DTMF_ACK",
- "START_DTMF_REJ",
- "unknown 0x38",
- "CONG_CTRL",
- "FACILITY",
- "unknown 0x3b",
- "STATUS",
- "unknown 0x3c",
- "NOTIFY",
- "unknown 0x3f",
-};
-
-
struct msgb *gsm48_msgb_alloc(void)
{
return msgb_alloc_headroom(GSM48_ALLOC_SIZE, GSM48_ALLOC_HEADROOM,
@@ -136,7 +68,7 @@
"Sending '%s' to MS.\n", msg->trx->bts->nr,
msg->trx->nr, msg->lchan->ts->nr,
gh->proto_discr & 0xf0,
- gsm0408_cc_msg_names[gh->msg_type & 0x3f]);
+ gsm48_cc_msg_names[gh->msg_type & 0x3f]);
else
DEBUGP(DCC, "(bts %d trx %d ts %d pd %02x) "
"Sending 0x%02x to MS.\n", msg->trx->bts->nr,
@@ -149,94 +81,6 @@
return rsl_data_request(msg, 0);
}
-static void to_bcd(u_int8_t *bcd, u_int16_t val)
-{
- bcd[2] = val % 10;
- val = val / 10;
- bcd[1] = val % 10;
- val = val / 10;
- bcd[0] = val % 10;
- val = val / 10;
-}
-
-static char bcd2char(u_int8_t bcd)
-{
- if (bcd < 0xa)
- return '0' + bcd;
- else
- return 'A' + (bcd - 0xa);
-}
-
-/* only works for numbers in ascci */
-static u_int8_t char2bcd(char c)
-{
- return c - 0x30;
-}
-
-
-void gsm0408_generate_lai(struct gsm48_loc_area_id *lai48, u_int16_t mcc,
- u_int16_t mnc, u_int16_t lac)
-{
- u_int8_t bcd[3];
-
- to_bcd(bcd, mcc);
- lai48->digits[0] = bcd[0] | (bcd[1] << 4);
- lai48->digits[1] = bcd[2];
-
- to_bcd(bcd, mnc);
- /* FIXME: do we need three-digit MNC? See Table 10.5.3 */
-#if 0
- lai48->digits[1] |= bcd[2] << 4;
- lai48->digits[2] = bcd[0] | (bcd[1] << 4);
-#else
- lai48->digits[1] |= 0xf << 4;
- lai48->digits[2] = bcd[1] | (bcd[2] << 4);
-#endif
-
- lai48->lac = htons(lac);
-}
-
-int gsm48_generate_mid_from_tmsi(u_int8_t *buf, u_int32_t tmsi)
-{
- u_int32_t *tptr = (u_int32_t *) &buf[3];
-
- buf[0] = GSM48_IE_MOBILE_ID;
- buf[1] = GSM48_TMSI_LEN;
- buf[2] = 0xf0 | GSM_MI_TYPE_TMSI;
- *tptr = htonl(tmsi);
-
- return 7;
-}
-
-int gsm48_generate_mid_from_imsi(u_int8_t *buf, const char *imsi)
-{
- unsigned int length = strlen(imsi), i, off = 0;
- u_int8_t odd = (length & 0x1) == 1;
-
- buf[0] = GSM48_IE_MOBILE_ID;
- buf[2] = char2bcd(imsi[0]) << 4 | GSM_MI_TYPE_IMSI | (odd << 3);
-
- /* if the length is even we will fill half of the last octet */
- if (odd)
- buf[1] = (length + 1) >> 1;
- else
- buf[1] = (length + 2) >> 1;
-
- for (i = 1; i < buf[1]; ++i) {
- u_int8_t lower, upper;
-
- lower = char2bcd(imsi[++off]);
- if (!odd && off + 1 == length)
- upper = 0x0f;
- else
- upper = char2bcd(imsi[++off]) & 0x0f;
-
- buf[2 + i] = (upper << 4) | lower;
- }
-
- return 2 + buf[1];
-}
-
/* Section 9.1.8 / Table 9.9 */
struct chreq {
u_int8_t val;