From f7e9c51bdc61713c39a26f28a469173f225f4711 Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Wed, 6 Mar 2019 04:25:38 +0100 Subject: BSSMAP: add messages for inter-BSC and inter-MSC Handover Change-Id: I9dac375331f6bea744769e973725d58e35f87226 --- include/osmocom/gsm/gsm0808.h | 66 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) (limited to 'include') diff --git a/include/osmocom/gsm/gsm0808.h b/include/osmocom/gsm/gsm0808.h index 0f2bf1fb..2f194663 100644 --- a/include/osmocom/gsm/gsm0808.h +++ b/include/osmocom/gsm/gsm0808.h @@ -27,6 +27,7 @@ #include #include #include +#include #include #define BSSMAP_MSG_SIZE 1024 @@ -143,11 +144,76 @@ struct gsm0808_handover_required { }; struct msgb *gsm0808_create_handover_required(const struct gsm0808_handover_required *params); +/*! 3GPP TS 48.008 §3.2.1.37 HANDOVER REQUIRED REJECT */ +struct gsm0808_handover_required_reject { + uint16_t cause; + + /* more items are defined in the spec and may be added later */ + bool more_items; /*< always set this to false */ +}; +struct msgb *gsm0808_create_handover_required_reject(const struct gsm0808_handover_required_reject *params); + +/*! 3GPP TS 48.008 §3.2.1.8 HANDOVER REQUEST */ +struct gsm0808_handover_request { + struct gsm0808_channel_type channel_type; + struct gsm0808_encrypt_info encryption_information; + struct osmo_gsm48_classmark classmark_information; + struct gsm0808_cell_id cell_identifier_serving; + struct gsm0808_cell_id cell_identifier_target; + enum gsm0808_cause cause; + + bool current_channel_type_1_present; + uint8_t current_channel_type_1; + + enum gsm0808_permitted_speech speech_version_used; + + uint8_t chosen_encryption_algorithm_serving; + + /*! Pass either old_bss_to_new_bss_info or old_bss_to_new_bss_info_raw. */ + bool old_bss_to_new_bss_info_present; + struct gsm0808_old_bss_to_new_bss_info old_bss_to_new_bss_info; + /*! To feed the Old BSS to New BSS Information IE unchanged from the Handover Required message without having to + * decode it. Pass either old_bss_to_new_bss_info or old_bss_to_new_bss_info_raw. Omit the TL part. */ + const uint8_t *old_bss_to_new_bss_info_raw; + uint8_t old_bss_to_new_bss_info_raw_len; + + const char *imsi; + + const struct sockaddr_storage *aoip_transport_layer; + + const struct gsm0808_speech_codec_list *codec_list_msc_preferred; + + bool call_id_present; + uint32_t call_id; + + const uint8_t *global_call_reference; + uint8_t global_call_reference_len; + + /* more items are defined in the spec and may be added later */ + bool more_items; /*!< always set this to false */ +}; +struct msgb *gsm0808_create_handover_request(const struct gsm0808_handover_request *params); + struct msgb *gsm0808_create_handover_request_ack(const uint8_t *l3_info, uint8_t l3_info_len, uint8_t chosen_channel, uint8_t chosen_encr_alg, uint8_t chosen_speech_version); +struct gsm0808_handover_command { + const uint8_t *l3_info; + uint8_t l3_info_len; + + struct gsm0808_cell_id cell_identifier; + + const uint8_t *new_bss_to_old_bss_info_raw; + size_t new_bss_to_old_bss_info_raw_len; + + /* more items are defined in the spec and may be added later */ + bool more_items; /*!< always set this to false */ +}; +struct msgb *gsm0808_create_handover_command(const struct gsm0808_handover_command *params); + struct msgb *gsm0808_create_handover_detect(); +struct msgb *gsm0808_create_handover_succeeded(); struct gsm0808_handover_complete { bool rr_cause_present; -- cgit v1.2.3