Import sytem information related definitions + code from openbsc
diff --git a/src/gsm/sysinfo.c b/src/gsm/sysinfo.c
new file mode 100644
index 0000000..0dbff3a
--- /dev/null
+++ b/src/gsm/sysinfo.c
@@ -0,0 +1,131 @@
+/* GSM 04.08 System Information (SI) encoding and decoding
+ * 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0 */
+
+/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <netinet/in.h>
+
+#include <osmocom/core/bitvec.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/gsm/sysinfo.h>
+#include <osmocom/gsm/protocol/gsm_04_08.h>
+#include <osmocom/gsm/protocol/gsm_08_58.h>
+
+/* verify the sizes of the system information type structs */
+
+/* rest octets are not part of the struct */
+osmo_static_assert(sizeof(struct gsm48_system_information_type_header) == 3, _si_header_size);
+osmo_static_assert(sizeof(struct gsm48_rach_control) == 3, _si_rach_control);
+osmo_static_assert(sizeof(struct gsm48_system_information_type_1) == 22, _si1_size);
+osmo_static_assert(sizeof(struct gsm48_system_information_type_2) == 23, _si2_size);
+osmo_static_assert(sizeof(struct gsm48_system_information_type_3) == 19, _si3_size);
+osmo_static_assert(sizeof(struct gsm48_system_information_type_4) == 13, _si4_size);
+
+/* bs11 forgot the l2 len, 0-6 rest octets */
+osmo_static_assert(sizeof(struct gsm48_system_information_type_5) == 18, _si5_size);
+osmo_static_assert(sizeof(struct gsm48_system_information_type_6) == 11, _si6_size);
+
+osmo_static_assert(sizeof(struct gsm48_system_information_type_13) == 3, _si13_size);
+
+static const uint8_t sitype2rsl[_MAX_SYSINFO_TYPE] = {
+ [SYSINFO_TYPE_1] = RSL_SYSTEM_INFO_1,
+ [SYSINFO_TYPE_2] = RSL_SYSTEM_INFO_2,
+ [SYSINFO_TYPE_3] = RSL_SYSTEM_INFO_3,
+ [SYSINFO_TYPE_4] = RSL_SYSTEM_INFO_4,
+ [SYSINFO_TYPE_5] = RSL_SYSTEM_INFO_5,
+ [SYSINFO_TYPE_6] = RSL_SYSTEM_INFO_6,
+ [SYSINFO_TYPE_7] = RSL_SYSTEM_INFO_7,
+ [SYSINFO_TYPE_8] = RSL_SYSTEM_INFO_8,
+ [SYSINFO_TYPE_9] = RSL_SYSTEM_INFO_9,
+ [SYSINFO_TYPE_10] = RSL_SYSTEM_INFO_10,
+ [SYSINFO_TYPE_13] = RSL_SYSTEM_INFO_13,
+ [SYSINFO_TYPE_16] = RSL_SYSTEM_INFO_16,
+ [SYSINFO_TYPE_17] = RSL_SYSTEM_INFO_17,
+ [SYSINFO_TYPE_18] = RSL_SYSTEM_INFO_18,
+ [SYSINFO_TYPE_19] = RSL_SYSTEM_INFO_19,
+ [SYSINFO_TYPE_20] = RSL_SYSTEM_INFO_20,
+ [SYSINFO_TYPE_2bis] = RSL_SYSTEM_INFO_2bis,
+ [SYSINFO_TYPE_2ter] = RSL_SYSTEM_INFO_2ter,
+ [SYSINFO_TYPE_2quater] = RSL_SYSTEM_INFO_2quater,
+ [SYSINFO_TYPE_5bis] = RSL_SYSTEM_INFO_5bis,
+ [SYSINFO_TYPE_5ter] = RSL_SYSTEM_INFO_5ter,
+};
+
+static const uint8_t rsl2sitype[0xff] = {
+ [RSL_SYSTEM_INFO_1] = SYSINFO_TYPE_1,
+ [RSL_SYSTEM_INFO_2] = SYSINFO_TYPE_2,
+ [RSL_SYSTEM_INFO_3] = SYSINFO_TYPE_3,
+ [RSL_SYSTEM_INFO_4] = SYSINFO_TYPE_4,
+ [RSL_SYSTEM_INFO_5] = SYSINFO_TYPE_5,
+ [RSL_SYSTEM_INFO_6] = SYSINFO_TYPE_6,
+ [RSL_SYSTEM_INFO_7] = SYSINFO_TYPE_7,
+ [RSL_SYSTEM_INFO_8] = SYSINFO_TYPE_8,
+ [RSL_SYSTEM_INFO_9] = SYSINFO_TYPE_9,
+ [RSL_SYSTEM_INFO_10] = SYSINFO_TYPE_10,
+ [RSL_SYSTEM_INFO_13] = SYSINFO_TYPE_13,
+ [RSL_SYSTEM_INFO_16] = SYSINFO_TYPE_16,
+ [RSL_SYSTEM_INFO_17] = SYSINFO_TYPE_17,
+ [RSL_SYSTEM_INFO_18] = SYSINFO_TYPE_18,
+ [RSL_SYSTEM_INFO_19] = SYSINFO_TYPE_19,
+ [RSL_SYSTEM_INFO_20] = SYSINFO_TYPE_20,
+ [RSL_SYSTEM_INFO_2bis] = SYSINFO_TYPE_2bis,
+ [RSL_SYSTEM_INFO_2ter] = SYSINFO_TYPE_2ter,
+ [RSL_SYSTEM_INFO_2quater] = SYSINFO_TYPE_2quater,
+ [RSL_SYSTEM_INFO_5bis] = SYSINFO_TYPE_5bis,
+ [RSL_SYSTEM_INFO_5ter] = SYSINFO_TYPE_5ter,
+};
+
+const struct value_string osmo_sitype_strs[_MAX_SYSINFO_TYPE] = {
+ { SYSINFO_TYPE_1, "1" },
+ { SYSINFO_TYPE_2, "2" },
+ { SYSINFO_TYPE_3, "3" },
+ { SYSINFO_TYPE_4, "4" },
+ { SYSINFO_TYPE_5, "5" },
+ { SYSINFO_TYPE_6, "6" },
+ { SYSINFO_TYPE_7, "7" },
+ { SYSINFO_TYPE_8, "8" },
+ { SYSINFO_TYPE_9, "9" },
+ { SYSINFO_TYPE_10, "10" },
+ { SYSINFO_TYPE_13, "13" },
+ { SYSINFO_TYPE_16, "16" },
+ { SYSINFO_TYPE_17, "17" },
+ { SYSINFO_TYPE_18, "18" },
+ { SYSINFO_TYPE_19, "19" },
+ { SYSINFO_TYPE_20, "20" },
+ { SYSINFO_TYPE_2bis, "2bis" },
+ { SYSINFO_TYPE_2ter, "2ter" },
+ { SYSINFO_TYPE_2quater, "2quater" },
+ { SYSINFO_TYPE_5bis, "5bis" },
+ { SYSINFO_TYPE_5ter, "5ter" },
+ { 0, NULL }
+};
+
+uint8_t osmo_sitype2rsl(enum osmo_sysinfo_type si_type)
+{
+ return sitype2rsl[si_type];
+}
+
+enum osmo_sysinfo_type osmo_rsl2sitype(uint8_t rsl_si)
+{
+ return rsl2sitype[rsl_si];
+}