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-rw-r--r--src/gprs/gprs_utils.c246
1 files changed, 0 insertions, 246 deletions
diff --git a/src/gprs/gprs_utils.c b/src/gprs/gprs_utils.c
deleted file mode 100644
index 91a09d2db..000000000
--- a/src/gprs/gprs_utils.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/* GPRS utility functions */
-
-/* (C) 2010 by Harald Welte <laforge@gnumonks.org>
- * (C) 2010-2014 by On-Waves
- * (C) 2013 by Holger Hans Peter Freyther
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-#include <openbsc/gprs_utils.h>
-
-#include <osmocom/core/msgb.h>
-#include <osmocom/gprs/gprs_ns.h>
-
-#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
-#include <osmocom/gsm/protocol/gsm_04_08.h>
-#include <osmocom/gsm/gsm48.h>
-
-#include <string.h>
-
-/* FIXME: this needs to go to libosmocore/msgb.c */
-struct msgb *gprs_msgb_copy(const struct msgb *msg, const char *name)
-{
- struct libgb_msgb_cb *old_cb, *new_cb;
- struct msgb *new_msg;
-
- new_msg = msgb_alloc(msg->data_len, name);
- if (!new_msg)
- return NULL;
-
- /* copy data */
- memcpy(new_msg->_data, msg->_data, new_msg->data_len);
-
- /* copy header */
- new_msg->len = msg->len;
- new_msg->data += msg->data - msg->_data;
- new_msg->head += msg->head - msg->_data;
- new_msg->tail += msg->tail - msg->_data;
-
- if (msg->l1h)
- new_msg->l1h = new_msg->_data + (msg->l1h - msg->_data);
- if (msg->l2h)
- new_msg->l2h = new_msg->_data + (msg->l2h - msg->_data);
- if (msg->l3h)
- new_msg->l3h = new_msg->_data + (msg->l3h - msg->_data);
- if (msg->l4h)
- new_msg->l4h = new_msg->_data + (msg->l4h - msg->_data);
-
- /* copy GB specific data */
- old_cb = LIBGB_MSGB_CB(msg);
- new_cb = LIBGB_MSGB_CB(new_msg);
-
- if (old_cb->bssgph)
- new_cb->bssgph = new_msg->_data + (old_cb->bssgph - msg->_data);
- if (old_cb->llch)
- new_cb->llch = new_msg->_data + (old_cb->llch - msg->_data);
-
- /* bssgp_cell_id is a pointer into the old msgb, so we need to make
- * it a pointer into the new msgb */
- if (old_cb->bssgp_cell_id)
- new_cb->bssgp_cell_id = new_msg->_data +
- (old_cb->bssgp_cell_id - msg->_data);
- new_cb->nsei = old_cb->nsei;
- new_cb->bvci = old_cb->bvci;
- new_cb->tlli = old_cb->tlli;
-
- return new_msg;
-}
-
-/* TODO: Move this to libosmocore/msgb.c */
-int gprs_msgb_resize_area(struct msgb *msg, uint8_t *area,
- size_t old_size, size_t new_size)
-{
- int rc;
- uint8_t *rest = area + old_size;
- int rest_len = msg->len - old_size - (area - msg->data);
- int delta_size = (int)new_size - (int)old_size;
-
- if (delta_size == 0)
- return 0;
-
- if (delta_size > 0) {
- rc = msgb_trim(msg, msg->len + delta_size);
- if (rc < 0)
- return rc;
- }
-
- memmove(area + new_size, area + old_size, rest_len);
-
- if (msg->l1h >= rest)
- msg->l1h += delta_size;
- if (msg->l2h >= rest)
- msg->l2h += delta_size;
- if (msg->l3h >= rest)
- msg->l3h += delta_size;
- if (msg->l4h >= rest)
- msg->l4h += delta_size;
-
- if (delta_size < 0)
- msgb_trim(msg, msg->len + delta_size);
-
- return 0;
-}
-
-int gprs_str_to_apn(uint8_t *apn_enc, size_t max_len, const char *str)
-{
- uint8_t *last_len_field;
- int len;
-
- /* Can we even write the length field to the output? */
- if (max_len == 0)
- return -1;
-
- /* Remember where we need to put the length once we know it */
- last_len_field = apn_enc;
- len = 1;
- apn_enc += 1;
-
- while (str[0]) {
- if (len >= max_len)
- return -1;
-
- if (str[0] == '.') {
- *last_len_field = (apn_enc - last_len_field) - 1;
- last_len_field = apn_enc;
- } else {
- *apn_enc = str[0];
- }
- apn_enc += 1;
- str += 1;
- len += 1;
- }
-
- *last_len_field = (apn_enc - last_len_field) - 1;
-
- return len;
-}
-
-/* GSM 04.08, 10.5.7.3 GPRS Timer */
-int gprs_tmr_to_secs(uint8_t tmr)
-{
- switch (tmr & GPRS_TMR_UNIT_MASK) {
- case GPRS_TMR_2SECONDS:
- return 2 * (tmr & GPRS_TMR_FACT_MASK);
- default:
- case GPRS_TMR_MINUTE:
- return 60 * (tmr & GPRS_TMR_FACT_MASK);
- case GPRS_TMR_6MINUTE:
- return 360 * (tmr & GPRS_TMR_FACT_MASK);
- case GPRS_TMR_DEACTIVATED:
- return -1;
- }
-}
-
-/* This functions returns a tmr value such that
- * - f is monotonic
- * - f(s) <= s
- * - f(s) == s if a tmr exists with s = gprs_tmr_to_secs(tmr)
- * - the best possible resolution is used
- * where
- * f(s) = gprs_tmr_to_secs(gprs_secs_to_tmr_floor(s))
- */
-uint8_t gprs_secs_to_tmr_floor(int secs)
-{
- if (secs < 0)
- return GPRS_TMR_DEACTIVATED;
- if (secs < 2 * 32)
- return GPRS_TMR_2SECONDS | (secs / 2);
- if (secs < 60 * 2)
- /* Ensure monotonicity */
- return GPRS_TMR_2SECONDS | GPRS_TMR_FACT_MASK;
- if (secs < 60 * 32)
- return GPRS_TMR_MINUTE | (secs / 60);
- if (secs < 360 * 6)
- /* Ensure monotonicity */
- return GPRS_TMR_MINUTE | GPRS_TMR_FACT_MASK;
- if (secs < 360 * 32)
- return GPRS_TMR_6MINUTE | (secs / 360);
-
- return GPRS_TMR_6MINUTE | GPRS_TMR_FACT_MASK;
-}
-
-/* GSM 04.08, 10.5.1.4 */
-int gprs_is_mi_tmsi(const uint8_t *value, size_t value_len)
-{
- if (value_len != GSM48_TMSI_LEN)
- return 0;
-
- if (!value || (value[0] & GSM_MI_TYPE_MASK) != GSM_MI_TYPE_TMSI)
- return 0;
-
- return 1;
-}
-
-/* GSM 04.08, 10.5.1.4 */
-int gprs_is_mi_imsi(const uint8_t *value, size_t value_len)
-{
- if (value_len == 0)
- return 0;
-
- if (!value || (value[0] & GSM_MI_TYPE_MASK) != GSM_MI_TYPE_IMSI)
- return 0;
-
- return 1;
-}
-
-int gprs_parse_mi_tmsi(const uint8_t *value, size_t value_len, uint32_t *tmsi)
-{
- uint32_t tmsi_be;
-
- if (!gprs_is_mi_tmsi(value, value_len))
- return 0;
-
- memcpy(&tmsi_be, value + 1, sizeof(tmsi_be));
-
- *tmsi = ntohl(tmsi_be);
- return 1;
-}
-
-void gprs_parse_tmsi(const uint8_t *value, uint32_t *tmsi)
-{
- uint32_t tmsi_be;
-
- memcpy(&tmsi_be, value, sizeof(tmsi_be));
-
- *tmsi = ntohl(tmsi_be);
-}
-
-int gprs_ra_id_equals(const struct gprs_ra_id *id1,
- const struct gprs_ra_id *id2)
-{
- return (id1->mcc == id2->mcc && id1->mnc == id2->mnc &&
- id1->lac == id2->lac && id1->rac == id2->rac);
-}
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