diff options
Diffstat (limited to 'src/shared/libosmocore/src/gsm/gsm0808.c')
-rw-r--r-- | src/shared/libosmocore/src/gsm/gsm0808.c | 402 |
1 files changed, 0 insertions, 402 deletions
diff --git a/src/shared/libosmocore/src/gsm/gsm0808.c b/src/shared/libosmocore/src/gsm/gsm0808.c deleted file mode 100644 index 30098278..00000000 --- a/src/shared/libosmocore/src/gsm/gsm0808.c +++ /dev/null @@ -1,402 +0,0 @@ -/* (C) 2009,2010 by Holger Hans Peter Freyther <zecke@selfish.org> - * (C) 2009,2010 by On-Waves - * All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - */ - -#include <osmocom/gsm/gsm0808.h> -#include <osmocom/gsm/protocol/gsm_08_08.h> -#include <osmocom/gsm/gsm48.h> - -#include <arpa/inet.h> - -#define BSSMAP_MSG_SIZE 512 -#define BSSMAP_MSG_HEADROOM 128 - -struct msgb *gsm0808_create_layer3(struct msgb *msg_l3, uint16_t nc, uint16_t cc, int lac, uint16_t _ci) -{ - struct msgb* msg; - struct { - uint8_t ident; - struct gsm48_loc_area_id lai; - uint16_t ci; - } __attribute__ ((packed)) lai_ci; - - msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "bssmap cmpl l3"); - if (!msg) - return NULL; - - /* create layer 3 header */ - msgb_v_put(msg, BSS_MAP_MSG_COMPLETE_LAYER_3); - - /* create the cell header */ - lai_ci.ident = CELL_IDENT_WHOLE_GLOBAL; - gsm48_generate_lai(&lai_ci.lai, cc, nc, lac); - lai_ci.ci = htons(_ci); - msgb_tlv_put(msg, GSM0808_IE_CELL_IDENTIFIER, sizeof(lai_ci), - (uint8_t *) &lai_ci); - - /* copy the layer3 data */ - msgb_tlv_put(msg, GSM0808_IE_LAYER_3_INFORMATION, - msgb_l3len(msg_l3), msg_l3->l3h); - - /* push the bssmap header */ - msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); - - return msg; -} - -struct msgb *gsm0808_create_reset(void) -{ - uint8_t cause = GSM0808_CAUSE_EQUIPMENT_FAILURE; - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "bssmap: reset"); - if (!msg) - return NULL; - - msgb_v_put(msg, BSS_MAP_MSG_RESET); - msgb_tlv_put(msg, GSM0808_IE_CAUSE, 1, &cause); - msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); - - return msg; -} - -struct msgb *gsm0808_create_clear_complete(void) -{ - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "bssmap: clear complete"); - uint8_t val = BSS_MAP_MSG_CLEAR_COMPLETE; - if (!msg) - return NULL; - - msg->l3h = msg->data; - msgb_tlv_put(msg, BSSAP_MSG_BSS_MANAGEMENT, 1, &val); - - return msg; -} - -struct msgb *gsm0808_create_clear_command(uint8_t reason) -{ - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "bssmap: clear command"); - if (!msg) - return NULL; - - msg->l3h = msgb_tv_put(msg, BSSAP_MSG_BSS_MANAGEMENT, 4); - msgb_v_put(msg, BSS_MAP_MSG_CLEAR_CMD); - msgb_tlv_put(msg, GSM0808_IE_CAUSE, 1, &reason); - - return msg; -} - -struct msgb *gsm0808_create_cipher_complete(struct msgb *layer3, uint8_t alg_id) -{ - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "cipher-complete"); - if (!msg) - return NULL; - - /* send response with BSS override for A5/1... cheating */ - msgb_v_put(msg, BSS_MAP_MSG_CIPHER_MODE_COMPLETE); - - /* include layer3 in case we have at least two octets */ - if (layer3 && msgb_l3len(layer3) > 2) { - msg->l4h = msgb_tlv_put(msg, GSM0808_IE_LAYER_3_MESSAGE_CONTENTS, - msgb_l3len(layer3), layer3->l3h); - } - - /* and the optional BSS message */ - msgb_tv_put(msg, GSM0808_IE_CHOSEN_ENCR_ALG, alg_id); - - /* pre-pend the header */ - msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); - - return msg; -} - -struct msgb *gsm0808_create_cipher_reject(uint8_t cause) -{ - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "bssmap: clear complete"); - if (!msg) - return NULL; - - msgb_tv_put(msg, BSS_MAP_MSG_CIPHER_MODE_REJECT, cause); - - msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); - - return msg; -} - -struct msgb *gsm0808_create_classmark_update(const uint8_t *cm2, uint8_t cm2_len, - const uint8_t *cm3, uint8_t cm3_len) -{ - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "classmark-update"); - if (!msg) - return NULL; - - msgb_v_put(msg, BSS_MAP_MSG_CLASSMARK_UPDATE); - msgb_tlv_put(msg, GSM0808_IE_CLASSMARK_INFORMATION_T2, cm2_len, cm2); - if (cm3) - msgb_tlv_put(msg, GSM0808_IE_CLASSMARK_INFORMATION_T3, - cm3_len, cm3); - - msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); - - return msg; -} - -struct msgb *gsm0808_create_sapi_reject(uint8_t link_id) -{ - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "bssmap: sapi 'n' reject"); - if (!msg) - return NULL; - - msgb_v_put(msg, BSS_MAP_MSG_SAPI_N_REJECT); - msgb_v_put(msg, link_id); - msgb_v_put(msg, GSM0808_CAUSE_BSS_NOT_EQUIPPED); - - msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); - - return msg; -} - -struct msgb *gsm0808_create_assignment_completed(uint8_t rr_cause, - uint8_t chosen_channel, uint8_t encr_alg_id, - uint8_t speech_mode) -{ - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "bssmap: ass compl"); - if (!msg) - return NULL; - - msgb_v_put(msg, BSS_MAP_MSG_ASSIGMENT_COMPLETE); - - /* write 3.2.2.22 */ - msgb_tv_put(msg, GSM0808_IE_RR_CAUSE, rr_cause); - - /* write cirtcuit identity code 3.2.2.2 */ - /* write cell identifier 3.2.2.17 */ - /* write chosen channel 3.2.2.33 when BTS picked it */ - msgb_tv_put(msg, GSM0808_IE_CHOSEN_CHANNEL, chosen_channel); - - /* write chosen encryption algorithm 3.2.2.44 */ - msgb_tv_put(msg, GSM0808_IE_CHOSEN_ENCR_ALG, encr_alg_id); - - /* write circuit pool 3.2.2.45 */ - /* write speech version chosen: 3.2.2.51 when BTS picked it */ - if (speech_mode != 0) - msgb_tv_put(msg, GSM0808_IE_SPEECH_VERSION, speech_mode); - - /* write LSA identifier 3.2.2.15 */ - - msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); - - return msg; -} - -struct msgb *gsm0808_create_assignment_failure(uint8_t cause, uint8_t *rr_cause) -{ - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "bssmap: ass fail"); - if (!msg) - return NULL; - - msgb_v_put(msg, BSS_MAP_MSG_ASSIGMENT_FAILURE); - msgb_tlv_put(msg, GSM0808_IE_CAUSE, 1, &cause); - - /* RR cause 3.2.2.22 */ - if (rr_cause) - msgb_tv_put(msg, GSM0808_IE_RR_CAUSE, *rr_cause); - - /* Circuit pool 3.22.45 */ - /* Circuit pool list 3.2.2.46 */ - - /* update the size */ - msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); - - return msg; -} - -struct msgb *gsm0808_create_clear_rqst(uint8_t cause) -{ - struct msgb *msg; - - msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "bssmap: clear rqst"); - if (!msg) - return NULL; - - msgb_v_put(msg, BSS_MAP_MSG_CLEAR_RQST); - msgb_tlv_put(msg, GSM0808_IE_CAUSE, 1, &cause); - msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); - - return msg; -} - -void gsm0808_prepend_dtap_header(struct msgb *msg, uint8_t link_id) -{ - uint8_t *hh = msgb_push(msg, 3); - hh[0] = BSSAP_MSG_DTAP; - hh[1] = link_id; - hh[2] = msg->len - 3; -} - -struct msgb *gsm0808_create_dtap(struct msgb *msg_l3, uint8_t link_id) -{ - struct dtap_header *header; - uint8_t *data; - struct msgb *msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, - "dtap"); - if (!msg) - return NULL; - - /* DTAP header */ - msg->l3h = msgb_put(msg, sizeof(*header)); - header = (struct dtap_header *) &msg->l3h[0]; - header->type = BSSAP_MSG_DTAP; - header->link_id = link_id; - header->length = msgb_l3len(msg_l3); - - /* Payload */ - data = msgb_put(msg, header->length); - memcpy(data, msg_l3->l3h, header->length); - - return msg; -} - -static const struct tlv_definition bss_att_tlvdef = { - .def = { - [GSM0808_IE_IMSI] = { TLV_TYPE_TLV }, - [GSM0808_IE_TMSI] = { TLV_TYPE_TLV }, - [GSM0808_IE_CELL_IDENTIFIER_LIST] = { TLV_TYPE_TLV }, - [GSM0808_IE_CHANNEL_NEEDED] = { TLV_TYPE_TV }, - [GSM0808_IE_EMLPP_PRIORITY] = { TLV_TYPE_TV }, - [GSM0808_IE_CHANNEL_TYPE] = { TLV_TYPE_TLV }, - [GSM0808_IE_PRIORITY] = { TLV_TYPE_TLV }, - [GSM0808_IE_CIRCUIT_IDENTITY_CODE] = { TLV_TYPE_FIXED, 2 }, - [GSM0808_IE_DOWNLINK_DTX_FLAG] = { TLV_TYPE_TV }, - [GSM0808_IE_INTERFERENCE_BAND_TO_USE] = { TLV_TYPE_TV }, - [GSM0808_IE_CLASSMARK_INFORMATION_T2] = { TLV_TYPE_TLV }, - [GSM0808_IE_GROUP_CALL_REFERENCE] = { TLV_TYPE_TLV }, - [GSM0808_IE_TALKER_FLAG] = { TLV_TYPE_T }, - [GSM0808_IE_CONFIG_EVO_INDI] = { TLV_TYPE_TV }, - [GSM0808_IE_LSA_ACCESS_CTRL_SUPPR] = { TLV_TYPE_TV }, - [GSM0808_IE_SERVICE_HANDOVER] = { TLV_TYPE_TLV }, - [GSM0808_IE_ENCRYPTION_INFORMATION] = { TLV_TYPE_TLV }, - [GSM0808_IE_CIPHER_RESPONSE_MODE] = { TLV_TYPE_TV }, - [GSM0808_IE_CELL_IDENTIFIER] = { TLV_TYPE_TLV }, - [GSM0808_IE_CHOSEN_CHANNEL] = { TLV_TYPE_TV }, - [GSM0808_IE_LAYER_3_INFORMATION] = { TLV_TYPE_TLV }, - [GSM0808_IE_SPEECH_VERSION] = { TLV_TYPE_TV }, - [GSM0808_IE_CHOSEN_ENCR_ALG] = { TLV_TYPE_TV }, - }, -}; - -const struct tlv_definition *gsm0808_att_tlvdef(void) -{ - return &bss_att_tlvdef; -} - -static const struct value_string gsm0808_msgt_names[] = { - { BSS_MAP_MSG_ASSIGMENT_RQST, "ASSIGNMENT REQ" }, - { BSS_MAP_MSG_ASSIGMENT_COMPLETE, "ASSIGNMENT COMPL" }, - { BSS_MAP_MSG_ASSIGMENT_FAILURE, "ASSIGNMENT FAIL" }, - - { BSS_MAP_MSG_HANDOVER_RQST, "HANDOVER REQ" }, - { BSS_MAP_MSG_HANDOVER_REQUIRED, "HANDOVER REQUIRED" }, - { BSS_MAP_MSG_HANDOVER_RQST_ACKNOWLEDGE,"HANDOVER REQ ACK" }, - { BSS_MAP_MSG_HANDOVER_CMD, "HANDOVER CMD" }, - { BSS_MAP_MSG_HANDOVER_COMPLETE, "HANDOVER COMPLETE" }, - { BSS_MAP_MSG_HANDOVER_SUCCEEDED, "HANDOVER SUCCESS" }, - { BSS_MAP_MSG_HANDOVER_FAILURE, "HANDOVER FAILURE" }, - { BSS_MAP_MSG_HANDOVER_PERFORMED, "HANDOVER PERFORMED" }, - { BSS_MAP_MSG_HANDOVER_CANDIDATE_ENQUIRE, "HANDOVER CAND ENQ" }, - { BSS_MAP_MSG_HANDOVER_CANDIDATE_RESPONSE, "HANDOVER CAND RESP" }, - { BSS_MAP_MSG_HANDOVER_REQUIRED_REJECT, "HANDOVER REQ REJ" }, - { BSS_MAP_MSG_HANDOVER_DETECT, "HANDOVER DETECT" }, - - { BSS_MAP_MSG_CLEAR_CMD, "CLEAR COMMAND" }, - { BSS_MAP_MSG_CLEAR_COMPLETE, "CLEAR COMPLETE" }, - { BSS_MAP_MSG_CLEAR_RQST, "CLEAR REQUEST" }, - { BSS_MAP_MSG_SAPI_N_REJECT, "SAPI N REJECT" }, - { BSS_MAP_MSG_CONFUSION, "CONFUSION" }, - - { BSS_MAP_MSG_SUSPEND, "SUSPEND" }, - { BSS_MAP_MSG_RESUME, "RESUME" }, - { BSS_MAP_MSG_CONNECTION_ORIENTED_INFORMATION, "CONN ORIENT INFO" }, - { BSS_MAP_MSG_PERFORM_LOCATION_RQST, "PERFORM LOC REQ" }, - { BSS_MAP_MSG_LSA_INFORMATION, "LSA INFORMATION" }, - { BSS_MAP_MSG_PERFORM_LOCATION_RESPONSE, "PERFORM LOC RESP" }, - { BSS_MAP_MSG_PERFORM_LOCATION_ABORT, "PERFORM LOC ABORT" }, - { BSS_MAP_MSG_COMMON_ID, "COMMON ID" }, - - { BSS_MAP_MSG_RESET, "RESET" }, - { BSS_MAP_MSG_RESET_ACKNOWLEDGE, "RESET ACK" }, - { BSS_MAP_MSG_OVERLOAD, "OVERLOAD" }, - { BSS_MAP_MSG_RESET_CIRCUIT, "RESET CIRCUIT" }, - { BSS_MAP_MSG_RESET_CIRCUIT_ACKNOWLEDGE, "RESET CIRCUIT ACK" }, - { BSS_MAP_MSG_MSC_INVOKE_TRACE, "MSC INVOKE TRACE" }, - { BSS_MAP_MSG_BSS_INVOKE_TRACE, "BSS INVOKE TRACE" }, - { BSS_MAP_MSG_CONNECTIONLESS_INFORMATION, "CONNLESS INFO" }, - - { BSS_MAP_MSG_BLOCK, "BLOCK" }, - { BSS_MAP_MSG_BLOCKING_ACKNOWLEDGE, "BLOCK ACK" }, - { BSS_MAP_MSG_UNBLOCK, "UNBLOCK" }, - { BSS_MAP_MSG_UNBLOCKING_ACKNOWLEDGE, "UNBLOCK ACK" }, - { BSS_MAP_MSG_CIRCUIT_GROUP_BLOCK, "CIRC GROUP BLOCK" }, - { BSS_MAP_MSG_CIRCUIT_GROUP_BLOCKING_ACKNOWLEDGE, "CIRC GORUP BLOCK ACK" }, - { BSS_MAP_MSG_CIRCUIT_GROUP_UNBLOCK, "CIRC GROUP UNBLOCK" }, - { BSS_MAP_MSG_CIRCUIT_GROUP_UNBLOCKING_ACKNOWLEDGE, "CIRC GROUP UNBLOCK ACK" }, - { BSS_MAP_MSG_UNEQUIPPED_CIRCUIT, "UNEQUIPPED CIRCUIT" }, - { BSS_MAP_MSG_CHANGE_CIRCUIT, "CHANGE CIRCUIT" }, - { BSS_MAP_MSG_CHANGE_CIRCUIT_ACKNOWLEDGE, "CHANGE CIRCUIT ACK" }, - - { BSS_MAP_MSG_RESOURCE_RQST, "RESOURCE REQ" }, - { BSS_MAP_MSG_RESOURCE_INDICATION, "RESOURCE IND" }, - { BSS_MAP_MSG_PAGING, "PAGING" }, - { BSS_MAP_MSG_CIPHER_MODE_CMD, "CIPHER MODE CMD" }, - { BSS_MAP_MSG_CLASSMARK_UPDATE, "CLASSMARK UPDATE" }, - { BSS_MAP_MSG_CIPHER_MODE_COMPLETE, "CIPHER MODE COMPLETE" }, - { BSS_MAP_MSG_QUEUING_INDICATION, "QUEUING INDICATION" }, - { BSS_MAP_MSG_COMPLETE_LAYER_3, "COMPLETE LAYER 3" }, - { BSS_MAP_MSG_CLASSMARK_RQST, "CLASSMARK REQ" }, - { BSS_MAP_MSG_CIPHER_MODE_REJECT, "CIPHER MODE REJECT" }, - { BSS_MAP_MSG_LOAD_INDICATION, "LOAD IND" }, - - /* FIXME: VGCS/VBS */ - - { 0, NULL } -}; - -const char *gsm0808_bssmap_name(uint8_t msg_type) -{ - return get_value_string(gsm0808_msgt_names, msg_type); -} - -static const struct value_string gsm0808_bssap_names[] = { - { BSSAP_MSG_BSS_MANAGEMENT, "MANAGEMENT" }, - { BSSAP_MSG_DTAP, "DTAP" }, -}; - -const char *gsm0808_bssap_name(uint8_t msg_type) -{ - return get_value_string(gsm0808_bssap_names, msg_type); -} |