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-rw-r--r--include/osmocom/sgsn/gprs_utils.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/include/osmocom/sgsn/gprs_utils.h b/include/osmocom/sgsn/gprs_utils.h
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+++ b/include/osmocom/sgsn/gprs_utils.h
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+/* 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/>.
+ *
+ */
+#pragma once
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <osmocom/core/msgb.h>
+
+struct msgb;
+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);
+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 */
+int gprs_tmr_to_secs(uint8_t tmr);
+uint8_t gprs_secs_to_tmr_floor(int secs);
+
+int gprs_is_mi_tmsi(const uint8_t *value, size_t value_len);
+int gprs_is_mi_imsi(const uint8_t *value, size_t value_len);
+int gprs_parse_mi_tmsi(const uint8_t *value, size_t value_len, uint32_t *tmsi);
+void gprs_parse_tmsi(const uint8_t *value, uint32_t *tmsi);
+
+int gprs_ra_id_equals(const struct gprs_ra_id *id1, const struct gprs_ra_id *id2);
+
+#define GSM48_ALLOC_SIZE 2048
+#define GSM48_ALLOC_HEADROOM 256
+
+static inline struct msgb *gsm48_msgb_alloc_name(const char *name)
+{
+ return msgb_alloc_headroom(GSM48_ALLOC_SIZE, GSM48_ALLOC_HEADROOM,
+ name);
+}