Hoernchen has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmocore/+/24628 )
Change subject: [WIP] a54 libfuncs ...................................................................... [WIP] a54 libfuncs Change-Id: I0fc25c6f23e76d210cbb9822b7e0a8184144ec42 Related: SYS#5324 --- M include/osmocom/gsm/gsm0808.h M src/gsm/gsm0808.c 2 files changed, 13 insertions(+), 5 deletions(-) git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/28/24628/1 diff --git a/include/osmocom/gsm/gsm0808.h b/include/osmocom/gsm/gsm0808.h index dc3610f..0cbe787 100644 --- a/include/osmocom/gsm/gsm0808.h +++ b/include/osmocom/gsm/gsm0808.h @@ -52,8 +52,8 @@ struct msgb *gsm0808_create_clear_command(uint8_t cause); struct msgb *gsm0808_create_clear_command2(uint8_t cause, bool csfb_ind); struct msgb *gsm0808_create_clear_complete(void); -struct msgb *gsm0808_create_cipher(const struct gsm0808_encrypt_info *ei, - const uint8_t *cipher_response_mode); +struct msgb *gsm0808_create_cipher(const struct gsm0808_encrypt_info *ei, uint8_t *kc128, + const uint8_t *cipher_response_mode); struct msgb *gsm0808_create_cipher_complete(struct msgb *layer3, uint8_t alg_id); struct msgb *gsm0808_create_cipher_reject(enum gsm0808_cause cause); struct msgb *gsm0808_create_cipher_reject_ext(enum gsm0808_cause_class class, uint8_t ext); @@ -165,6 +165,7 @@ struct gsm0808_handover_request { struct gsm0808_channel_type channel_type; struct gsm0808_encrypt_info encryption_information; + uint8_t kc128[16]; struct osmo_gsm48_classmark classmark_information; struct gsm0808_cell_id cell_identifier_serving; struct gsm0808_cell_id cell_identifier_target; @@ -200,7 +201,7 @@ /* 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(const struct gsm0808_handover_request *params, uint8_t *kc128); 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, diff --git a/src/gsm/gsm0808.c b/src/gsm/gsm0808.c index 3a39fd1..4b2a786 100644 --- a/src/gsm/gsm0808.c +++ b/src/gsm/gsm0808.c @@ -230,9 +230,10 @@ /*! Create BSSMAP Cipher Mode Command message * \param[in] ei Mandatory Encryption Information + * \param[in] kc128 optional kc128 key for A5/4 * \param[in] cipher_response_mode optional 1-byte Cipher Response Mode * \returns callee-allocated msgb with BSSMAP Cipher Mode Command message */ -struct msgb *gsm0808_create_cipher(const struct gsm0808_encrypt_info *ei, +struct msgb *gsm0808_create_cipher(const struct gsm0808_encrypt_info *ei, uint8_t* kc128, const uint8_t *cipher_response_mode) { /* See also: 3GPP TS 48.008 3.2.1.30 CIPHER MODE COMMAND */ @@ -258,6 +259,9 @@ msgb_tv_put(msg, GSM0808_IE_CIPHER_RESPONSE_MODE, *cipher_response_mode); + if(kc128) + msgb_tv_fixed_put(msg, GSM0808_IE_KC_128, 16, kc128); + /* pre-pend the header */ msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); @@ -905,7 +909,7 @@ * Sent from the MSC to the potential new target cell during inter-BSC handover, or to the target MSC during inter-MSC * handover. */ -struct msgb *gsm0808_create_handover_request(const struct gsm0808_handover_request *params) +struct msgb *gsm0808_create_handover_request(const struct gsm0808_handover_request *params, uint8_t* kc128) { struct msgb *msg; @@ -991,6 +995,9 @@ msgb_tv_fixed_put(msg, GSM0808_IE_CALL_ID, 4, val); } + if(kc128) + msgb_tv_fixed_put(msg, GSM0808_IE_KC_128, 16, kc128); + if (params->global_call_reference && params->global_call_reference_len) { msgb_tlv_put(msg, GSM0808_IE_GLOBAL_CALL_REF, params->global_call_reference_len, params->global_call_reference); -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/24628 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: I0fc25c6f23e76d210cbb9822b7e0a8184144ec42 Gerrit-Change-Number: 24628 Gerrit-PatchSet: 1 Gerrit-Owner: Hoernchen <ew...@sysmocom.de> Gerrit-MessageType: newchange