libgb: separate header files related to spec and implementation
like in libosmogsm, we separate between header files that are just
reflecting information in the respective specs, and header files that
related to our specific implementation.
diff --git a/openbsc/include/osmocom/gprs/protocol/gsm_08_16.h b/openbsc/include/osmocom/gprs/protocol/gsm_08_16.h
new file mode 100644
index 0000000..4c3eda3
--- /dev/null
+++ b/openbsc/include/osmocom/gprs/protocol/gsm_08_16.h
@@ -0,0 +1,85 @@
+#ifndef _OSMO_08_16_H
+#define _OSMO_08_16_H
+
+/* GPRS Networks Service (NS) messages on the Gb interface
+ * 3GPP TS 08.16 version 8.0.1 Release 1999 / ETSI TS 101 299 V8.0.1 (2002-05)
+ * 3GPP TS 48.016 version 6.5.0 Release 6 / ETSI TS 148 016 V6.5.0 (2005-11) */
+
+#include <stdint.h>
+
+/*! \addtogroup libgb
+ * @{
+ */
+
+/*! \file gprs_ns.h */
+
+/*! \brief Common header of GPRS NS */
+struct gprs_ns_hdr {
+ uint8_t pdu_type; /*!< NS PDU type */
+ uint8_t data[0]; /*!< variable-length payload */
+} __attribute__((packed));
+
+/*! \brief NS PDU Type (TS 08.16, Section 10.3.7, Table 14) */
+enum ns_pdu_type {
+ NS_PDUT_UNITDATA = 0x00,
+ NS_PDUT_RESET = 0x02,
+ NS_PDUT_RESET_ACK = 0x03,
+ NS_PDUT_BLOCK = 0x04,
+ NS_PDUT_BLOCK_ACK = 0x05,
+ NS_PDUT_UNBLOCK = 0x06,
+ NS_PDUT_UNBLOCK_ACK = 0x07,
+ NS_PDUT_STATUS = 0x08,
+ NS_PDUT_ALIVE = 0x0a,
+ NS_PDUT_ALIVE_ACK = 0x0b,
+ /* TS 48.016 Section 10.3.7, Table 10.3.7.1 */
+ SNS_PDUT_ACK = 0x0c,
+ SNS_PDUT_ADD = 0x0d,
+ SNS_PDUT_CHANGE_WEIGHT = 0x0e,
+ SNS_PDUT_CONFIG = 0x0f,
+ SNS_PDUT_CONFIG_ACK = 0x10,
+ SNS_PDUT_DELETE = 0x11,
+ SNS_PDUT_SIZE = 0x12,
+ SNS_PDUT_SIZE_ACK = 0x13,
+};
+
+/*! \brief NS Control IE (TS 08.16, Section 10.3, Table 12) */
+enum ns_ctrl_ie {
+ NS_IE_CAUSE = 0x00,
+ NS_IE_VCI = 0x01,
+ NS_IE_PDU = 0x02,
+ NS_IE_BVCI = 0x03,
+ NS_IE_NSEI = 0x04,
+ /* TS 48.016 Section 10.3, Table 10.3.1 */
+ NS_IE_IPv4_LIST = 0x05,
+ NS_IE_IPv6_LIST = 0x06,
+ NS_IE_MAX_NR_NSVC = 0x07,
+ NS_IE_IPv4_EP_NR = 0x08,
+ NS_IE_IPv6_EP_NR = 0x09,
+ NS_IE_RESET_FLAG = 0x0a,
+ NS_IE_IP_ADDR = 0x0b,
+};
+
+/*! \brief NS Cause (TS 08.16, Section 10.3.2, Table 13) */
+enum ns_cause {
+ NS_CAUSE_TRANSIT_FAIL = 0x00,
+ NS_CAUSE_OM_INTERVENTION = 0x01,
+ NS_CAUSE_EQUIP_FAIL = 0x02,
+ NS_CAUSE_NSVC_BLOCKED = 0x03,
+ NS_CAUSE_NSVC_UNKNOWN = 0x04,
+ NS_CAUSE_BVCI_UNKNOWN = 0x05,
+ NS_CAUSE_SEM_INCORR_PDU = 0x08,
+ NS_CAUSE_PDU_INCOMP_PSTATE = 0x0a,
+ NS_CAUSE_PROTO_ERR_UNSPEC = 0x0b,
+ NS_CAUSE_INVAL_ESSENT_IE = 0x0c,
+ NS_CAUSE_MISSING_ESSENT_IE = 0x0d,
+ /* TS 48.016 Section 10.3.2, Table 10.3.2.1 */
+ NS_CAUSE_INVAL_NR_IPv4_EP = 0x0e,
+ NS_CAUSE_INVAL_NR_IPv6_EP = 0x0f,
+ NS_CAUSE_INVAL_NR_NS_VC = 0x10,
+ NS_CAUSE_INVAL_WEIGH = 0x11,
+ NS_CAUSE_UNKN_IP_EP = 0x12,
+ NS_CAUSE_UNKN_IP_ADDR = 0x13,
+ NS_CAUSE_UNKN_IP_TEST_FAILED = 0x14,
+};
+
+#endif