#pragma once /* Iu User Plane (IuUP) Definitions as per 3GPP TS 25.415 */ /* (C) 2017 by Harald Welte * All Rights Reserved. * * SPDX-License-Identifier: GPL-2.0+ */ #include #include /* 3GPP TS 25.415 Section 6.6.2.1 */ struct iuup_pdutype0_hdr { #if OSMO_IS_LITTLE_ENDIAN /* control part */ uint8_t frame_nr:4, pdu_type:4; uint8_t rfci:6, fqc:2; /* checksum part */ uint8_t payload_crc_hi:2, header_crc:6; uint8_t payload_crc_lo; /* payload part */ uint8_t payload[0]; #elif OSMO_IS_BIG_ENDIAN /* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */ uint8_t pdu_type:4, frame_nr:4; uint8_t fqc:2, rfci:6; uint8_t header_crc:6, payload_crc_hi:2; uint8_t payload_crc_lo; uint8_t payload[0]; #endif } __attribute__((packed)); /* 3GPP TS 25.415 Section 6.6.2.2 */ struct iuup_pdutype1_hdr { #if OSMO_IS_LITTLE_ENDIAN /* control part */ uint8_t frame_nr:4, pdu_type:4; uint8_t rfci:6, fqc:2; /* checksum part */ uint8_t spare:2, header_crc:6; /* payload part */ uint8_t payload[0]; #elif OSMO_IS_BIG_ENDIAN /* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */ uint8_t pdu_type:4, frame_nr:4; uint8_t fqc:2, rfci:6; uint8_t header_crc:6, spare:2; uint8_t payload[0]; #endif } __attribute__((packed)); /* 3GPP TS 25.415 Section 6.6.2.3 */ struct iuup_pdutype14_hdr { #if OSMO_IS_LITTLE_ENDIAN /* control part */ uint8_t frame_nr:2, ack_nack:2, pdu_type:4; uint8_t proc_ind:4, mode_version:4; /* checksum part */ uint8_t payload_crc_hi:2, header_crc:6; uint8_t payload_crc_lo; /* payload part */ uint8_t payload[0]; #elif OSMO_IS_BIG_ENDIAN /* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */ uint8_t pdu_type:4, ack_nack:2, frame_nr:2; uint8_t mode_version:4, proc_ind:4; uint8_t header_crc:6, payload_crc_hi:2; uint8_t payload_crc_lo; uint8_t payload[0]; #endif } __attribute__((packed)); /* 3GPP TS 25.415 Section 6.6.2.3.4.1 */ struct iuup_ctrl_init_rfci_hdr { #if OSMO_IS_LITTLE_ENDIAN uint8_t rfci:6, li:1, lri:1; uint8_t subflow_length[0]; /* 1 or 2 bytes depending on li */ #elif OSMO_IS_BIG_ENDIAN /* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */ uint8_t lri:1, li:1, rfci:6; uint8_t subflow_length[0]; #endif } __attribute__((packed)); struct iuup_ctrl_init_hdr { #if OSMO_IS_LITTLE_ENDIAN uint8_t chain_ind:1, num_subflows_per_rfci:3, ti:1, spare:3; uint8_t rfci_data[0]; /* struct iuup_ctrl_init_rfci_hdr* */ #elif OSMO_IS_BIG_ENDIAN /* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */ uint8_t spare:3, ti:1, num_subflows_per_rfci:3, chain_ind:1; uint8_t rfci_data[0]; /* struct iuup_ctrl_init_rfci_hdr* */ ; #endif } __attribute__((packed)); struct iuup_ctrl_init_tail { #if OSMO_IS_LITTLE_ENDIAN uint16_t versions_supported; uint8_t spare:4, data_pdu_type:4; uint8_t spare_extension[0]; #elif OSMO_IS_BIG_ENDIAN /* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */ uint16_t versions_supported; uint8_t data_pdu_type:4, spare:4; uint8_t spare_extension[0]; #endif } __attribute__((packed)); /* 3GPP TS 25.415 Section 6.6.2.3.4.4 */ struct iuup_ctrl_error_event { #if OSMO_IS_LITTLE_ENDIAN struct iuup_pdutype14_hdr hdr; uint8_t error_cause:6, error_distance:2; uint8_t spare_extension[0]; #elif OSMO_IS_BIG_ENDIAN /* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */ struct iuup_pdutype14_hdr hdr; uint8_t error_distance:2, error_cause:6; uint8_t spare_extension[0]; #endif } __attribute__((packed)); /* 3GPP TS 25.415 Section 6.6.2.3.2 */ struct iuup_ctrl_ack { struct iuup_pdutype14_hdr hdr; uint8_t spare_extension[0]; } __attribute__((packed)); /* 3GPP TS 25.415 Section 6.6.2.3.3 */ struct iuup_ctrl_nack { #if OSMO_IS_LITTLE_ENDIAN struct iuup_pdutype14_hdr hdr; uint8_t spare:2, error_cause:6; uint8_t spare_extension[0]; #elif OSMO_IS_BIG_ENDIAN /* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */ struct iuup_pdutype14_hdr hdr; uint8_t error_cause:6, spare:2; uint8_t spare_extension[0]; #endif } __attribute__((packed)); /* 3GPP TS 25.415 Section 6.6.2 + 6.6.3.1 */ enum iuup_pdu_type { IUUP_PDU_T_DATA_CRC = 0, IUUP_PDU_T_DATA_NOCRC = 1, IUUP_PDU_T_CONTROL = 14, }; /* 3GPP TS 25.415 Section 6.6.3.2 */ enum iuup_ack_nack { IUUP_AN_PROCEDURE = 0, IUUP_AN_ACK = 1, IUUP_AN_NACK = 2, }; /* 3GPP TS 25.415 Section 6.6.3.5 */ enum iuup_fqc { IUUP_FQC_FRAME_GOOD = 0, IUUP_FQC_FRAME_BAD = 1, IUUP_FQC_FRAME_BAD_RADIO = 2, }; /* 3GPP TS 25.415 Section 6.6.3.7 */ enum iuup_procedure { IUUP_PROC_INIT = 0, IUUP_PROC_RATE_CTRL = 1, IUUP_PROC_TIME_ALIGN = 2, IUUP_PROC_ERR_EVENT = 3, }; /* 3GPP TS 25.415 Section 6.6.3.15 */ enum iuup_error_distance { IUUP_ERR_DIST_LOCAL = 0, IUUP_ERR_DIST_FIRST_FWD = 1, IUUP_ERR_DIST_SECOND_FWD = 2, IUUP_ERR_DIST_RESERVED = 3, }; /* 3GPP TS 25.415 Section 6.6.3.16 */ enum iuup_error_cause { IUUP_ERR_CAUSE_CRC_ERR_HDR = 0, IUUP_ERR_CAUSE_CRC_ERR_DATA = 1, IUUP_ERR_CAUSE_UNEXPECTED_FN = 2, IUUP_ERR_CAUSE_FRAME_LOSS = 3, IUUP_ERR_CAUSE_UNKNOWN_PDUTYPE = 4, IUUP_ERR_CAUSE_UNKNOWN_PROC = 5, IUUP_ERR_CAUSE_UNKNNOWN_RES_VAL = 6, IUUP_ERR_CAUSE_UNKNNOWN_FIELD = 7, IUUP_ERR_CAUSE_FRAME_TOO_SHORT = 8, IUUP_ERR_CAUSE_MISSING_FIELDS = 9, IUUP_ERR_CAUSE_UNEXPECTED_PDU_T = 16, IUUP_ERR_CAUSE_UNEXPECTED_PROC = 18, IUUP_ERR_CAUSE_UNEXPECTED_RFCI = 19, IUUP_ERR_CAUSE_UNEXPECTED_VALUE = 20, IUUP_ERR_CAUSE_INIT_FAILURE = 42, IUUP_ERR_CAUSE_INIT_FAILURE_NET_TMR = 43, IUUP_ERR_CAUSE_INIT_FAILURE_REP_NACK = 44, IUUP_ERR_CAUSE_RATE_CTRL_FAILURE = 45, IUUP_ERR_CAUSE_ERR_EVENT_FAIL = 46, IUUP_ERR_CAUSE_TIME_ALIGN_NOTSUPP = 47, IUUP_ERR_CAUSE_REQ_TIME_ALIGN_NOTPOSS = 48, IUUP_ERR_CAUSE_MODE_VERSION_NOT_SUPPORTED = 49, };