diff options
Diffstat (limited to 'include/osmocom/gsm/protocol/gsm_25_415.h')
| -rw-r--r-- | include/osmocom/gsm/protocol/gsm_25_415.h | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/include/osmocom/gsm/protocol/gsm_25_415.h b/include/osmocom/gsm/protocol/gsm_25_415.h new file mode 100644 index 00000000..5c4dd2bb --- /dev/null +++ b/include/osmocom/gsm/protocol/gsm_25_415.h @@ -0,0 +1,222 @@ +#pragma once +/* Iu User Plane (IuUP) Definitions as per 3GPP TS 25.415 */ +/* (C) 2017 by Harald Welte <laforge@gnumonks.org> + * All Rights Reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <stdint.h> +#include <osmocom/core/endian.h> + +/* 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, +}; 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