/* * Copyright (c) 2017-2019, Arm Limited and affiliates. * SPDX-License-Identifier: BSD-3-Clause * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holder nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /** * \brief Thread commercial mode implementation for CCM bootstrap. */ #include "nsconfig.h" #include #include #include "nsdynmemLIB.h" #include "ns_trace.h" #include "common_functions.h" #include "coap_service_api.h" #include "thread_meshcop_lib.h" #include "randLIB.h" #include "6LoWPAN/Thread/thread_common.h" #include "6LoWPAN/Thread/thread_bootstrap.h" #include "6LoWPAN/Thread/thread_joiner_application.h" #include "6LoWPAN/Thread/thread_discovery.h" #include "6LoWPAN/Thread/thread_constants.h" #include "6LoWPAN/Thread/thread_management_server.h" #include "6LoWPAN/Thread/thread_nvm_store.h" #include "6LoWPAN/Thread/thread_ccm.h" /* * Thread 1.2 CCM security credentials */ #ifdef HAVE_THREAD_V2 #if 1 /* Hardcoded CSR request */ static const unsigned char csr_request[215] = { 0x30, 0x81, 0xd4, 0x30, 0x7c, 0x02, 0x01, 0x00, 0x30, 0x1a, 0x31, 0x18, 0x30, 0x16, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x0f, 0x54, 0x68, 0x72, 0x65, 0x61, 0x64, 0x44, 0x65, 0x76, 0x69, 0x63, 0x65, 0x31, 0x32, 0x33, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0xb1, 0xab, 0xe8, 0xa2, 0xa1, 0xe6, 0x62, 0x5e, 0xae, 0x9e, 0x7e, 0x41, 0xcf, 0x7e, 0x95, 0x58, 0x19, 0x51, 0x47, 0xea, 0x0f, 0xe2, 0xf8, 0xc2, 0x1b, 0x61, 0xa5, 0x30, 0x05, 0xc0, 0x91, 0xb6, 0x07, 0xc2, 0x43, 0x46, 0xda, 0x75, 0xc0, 0x58, 0xd8, 0x08, 0xa5, 0xbb, 0xdb, 0xdc, 0x0e, 0xf2, 0x05, 0x62, 0xfb, 0x28, 0xbb, 0xa7, 0xd2, 0x9e, 0xef, 0x8f, 0xbf, 0xba, 0xcd, 0x51, 0xa5, 0xfd, 0xa0, 0x00, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x48, 0x00, 0x30, 0x45, 0x02, 0x20, 0x4e, 0xb2, 0x25, 0x82, 0x24, 0xf6, 0xe1, 0x51, 0xd6, 0x0c, 0x19, 0x60, 0x88, 0xb8, 0xe2, 0xfd, 0x90, 0xd2, 0xc1, 0x0f, 0xb0, 0x4f, 0x8e, 0x73, 0x13, 0x5c, 0x9f, 0x42, 0x09, 0x68, 0xdf, 0x05, 0x02, 0x21, 0x00, 0xc9, 0xc2, 0x63, 0x83, 0x62, 0x24, 0x15, 0x73, 0xf1, 0x63, 0xea, 0xe3, 0xd2, 0xf1, 0x50, 0x48, 0x56, 0xdf, 0x6b, 0xcf, 0xc4, 0x31, 0xc4, 0xcf, 0xbc, 0x26, 0xe3, 0x5a, 0x74, 0x62, 0x0f, 0x70 }; #else /* CSR request with CBOR header*/ static const unsigned char csr_request[244] = { 0x58, 0xf2, 0x30, 0x81, 0xef, 0x30, 0x81, 0x95, 0x02, 0x01, 0x01, 0x30, 0x33, 0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x13, 0x4c, 0x69, 0x67, 0x68, 0x74, 0x69, 0x66, 0x79, 0x20, 0x50, 0x72, 0x6f, 0x20, 0x4d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x0a, 0x4f, 0x53, 0x52, 0x41, 0x4d, 0x20, 0x47, 0x6d, 0x62, 0x48, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0xd8, 0x19, 0x64, 0x07, 0xca, 0x38, 0x01, 0x62, 0xfd, 0x7e, 0xe7, 0x07, 0x8d, 0x21, 0x50, 0x0b, 0x9f, 0x00, 0x71, 0x26, 0xaa, 0x55, 0x2a, 0x44, 0x9b, 0xe8, 0xfd, 0xfb, 0x0e, 0x8d, 0x41, 0x01, 0xf2, 0x7b, 0x2e, 0x7b, 0xe4, 0x4f, 0x35, 0x00, 0x0b, 0x1f, 0xbc, 0x86, 0x57, 0xa1, 0x69, 0x32, 0x49, 0xcf, 0xd7, 0x2f, 0x0b, 0xfa, 0x22, 0x44, 0x0b, 0x6f, 0xf4, 0xb5, 0xbd, 0x0f, 0x20, 0xab, 0xa0, 0x00, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x49, 0x00, 0x30, 0x46, 0x02, 0x21, 0x00, 0xb5, 0xa2, 0x8b, 0xf9, 0xbf, 0x7d, 0x2c, 0x72, 0x3e, 0xf0, 0xad, 0x1e, 0x38, 0x28, 0xc0, 0xa3, 0xe8, 0xd6, 0x70, 0x9a, 0x2a, 0xf8, 0x1d, 0x33, 0x9d, 0xbb, 0x6c, 0x4f, 0x7c, 0x81, 0xb6, 0x71, 0x02, 0x21, 0x00, 0xba, 0x74, 0x50, 0xad, 0x27, 0x2e, 0x00, 0x71, 0x68, 0x7f, 0xe0, 0x2c, 0x8c, 0x1b, 0x6f, 0x95, 0x8c, 0x58, 0x1e, 0xe7, 0xe3, 0xa5, 0x50, 0xca, 0x12, 0x0a, 0x60, 0x56, 0xd2, 0x3a, 0xe2, 0xeb } #endif /* * Private key for certificate m_device_nxp_sn_and_8021ar.cert.pem -> test registrar will return this as default */ static const unsigned char domain_private_key[138] = { 0x30, 0x81, 0x87, 0x02, 0x01, 0x00, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x04, 0x6d, 0x30, 0x6b, 0x02, 0x01, 0x01, 0x04, 0x20, 0x49, 0x9c, 0x76, 0x67, 0xd9, 0xae, 0x4e, 0xb6, 0x38, 0xb7, 0xce, 0x25, 0x2b, 0x21, 0xf4, 0x6a, 0x88, 0x28, 0xaa, 0x16, 0x74, 0x6e, 0xc3, 0xbc, 0xbb, 0x37, 0x50, 0xc9, 0x87, 0xbd, 0xff, 0xbf, 0xa1, 0x44, 0x03, 0x42, 0x00, 0x04, 0x50, 0xe9, 0x5f, 0xd3, 0xb1, 0x72, 0x74, 0xb6, 0xaf, 0x15, 0xae, 0xd7, 0x6d, 0xf9, 0x7f, 0xfa, 0x4f, 0xaf, 0xd6, 0x1f, 0x09, 0x29, 0x37, 0xf8, 0x1d, 0x27, 0xeb, 0x31, 0x41, 0x62, 0x52, 0x4e, 0x6b, 0x51, 0x8e, 0x08, 0x72, 0xce, 0xc2, 0x43, 0x69, 0x0a, 0x57, 0xb5, 0x54, 0xeb, 0x9b, 0x06, 0xad, 0xed, 0x7c, 0x56, 0x6e, 0x0c, 0x23, 0xcb, 0x1e, 0x51, 0x78, 0xe4, 0xae, 0x41, 0x58, 0x15 }; const uint8_t meshcop_nmkp_resp_ignore[] = { MESHCOP_TLV_COMM_SIGNATURE, MESHCOP_TLV_COMM_TOKEN, MESHCOP_TLV_COMMISSIONER_SESSION_ID, MESHCOP_TLV_COMMISSIONER_ID, MESHCOP_TLV_STATE }; static NS_LIST_DEFINE(ccm_instance_list, thread_ccm_credentials_t, link); #define TRACE_GROUP "ccmb" static int stringlen(const char *s, int n) { char *end = memchr(s, 0, n); return end ? end - s : n; } static int8_t thread_ccm_find_id_by_service(int8_t service_id) { ns_list_foreach(thread_ccm_credentials_t, cur, &ccm_instance_list) { if (cur->coap_service_secure_session_id == service_id) { return cur->interface_id; } } return -1; } static thread_ccm_credentials_t *thread_ccm_find_by_service(int8_t service_id) { ns_list_foreach(thread_ccm_credentials_t, cur, &ccm_instance_list) { if (cur->coap_service_secure_session_id == service_id) { return cur; } } return NULL; } static void thread_ccm_attach_cb(void *arg) { thread_ccm_credentials_t *this = arg; tr_debug("Attach to new network"); if (!this) { return; } if (this->reattach_ongoing) { this->reattach_ongoing = false; thread_nvm_store_mleid_rloc_map_remove(); thread_nvm_store_link_info_clear(); thread_joiner_application_link_configuration_delete(this->interface_id); thread_bootstrap_connection_error(this->interface_id, CON_ERROR_NETWORK_KICK, NULL); } else { // Cleaning up the joining information if (this->ccm_done_cb) {// This is successfull this->ccm_done_cb(this->interface_id); } } } int8_t thread_ccm_network_reattach(int8_t service_id, uint16_t timeout, bool clear_data) { thread_ccm_credentials_t *this = thread_ccm_find_by_service(service_id); if (!this) { return -1; } this->reattach_ongoing = clear_data; // re-attach in any case and close the secure connection this->attach_timeout = eventOS_timeout_ms(thread_ccm_attach_cb, timeout, this); return 0; } static int thread_ccm_security_start_cb(int8_t service_id, uint8_t address[static 16], uint16_t port, uint8_t *pw, uint8_t *pw_len) { /* Certificates used, pskd not needed */ (void) service_id; (void) address; (void) port; (void) pw; (void) pw_len; return 0; } static int thread_ccm_enroll_parse(protocol_interface_info_entry_t *cur, uint8_t *payload_ptr, uint16_t payload_len) { uint8_t *ptr; uint16_t len, flen; ptr = payload_ptr; len = payload_len; // CBOR format check if (*ptr == 0x58) { flen = *(ptr + 1); ptr += 2; len -= 2; } else if (*ptr == 0x59) { flen = common_read_16_bit(ptr + 1); ptr += 3; len -= 3; } else { // no shorter than 23 byte certificates supported flen = 0; } if (flen != len || 0 > thread_ccm_network_certificate_set(cur, ptr, len)) { tr_warn("ae response parse failed, len %d != %d", len, flen); } return 0; } static int thread_ccm_simple_enroll_response_cb(int8_t service_id, uint8_t source_address[static 16], uint16_t source_port, sn_coap_hdr_s *response_ptr) { (void) source_address; (void) source_port; // re-attach in any case and close the secure connection thread_ccm_network_reattach(service_id, 1000, false); coap_service_close_secure_connection(service_id, source_address, source_port); protocol_interface_info_entry_t *cur = protocol_stack_interface_info_get_by_id(thread_ccm_find_id_by_service(service_id)); tr_debug("Simple enrollment received len:%d - %s", response_ptr->payload_len, trace_array(response_ptr->payload_ptr, response_ptr->payload_len)); if (!cur || !cur->thread_info || !response_ptr) { return -1; } thread_ccm_enroll_parse(cur, response_ptr->payload_ptr, response_ptr->payload_len); return 0; } static int thread_ccm_csrattrs_response_cb(int8_t service_id, uint8_t source_address[static 16], uint16_t source_port, sn_coap_hdr_s *response_ptr) { (void) response_ptr; protocol_interface_info_entry_t *cur = protocol_stack_interface_info_get_by_id(thread_ccm_find_id_by_service(service_id)); if (!cur || !cur->thread_info) { return -1; } tr_info("Receiving csrattrs response sending simpleenroll"); // TODO Create CSR and private key here... Now we use hardcoded stuff. thread_ccm_network_private_key_set(cur, domain_private_key, sizeof(domain_private_key)); coap_service_request_send(service_id, COAP_REQUEST_OPTIONS_SECURE_BYPASS, source_address, source_port, COAP_MSG_TYPE_CONFIRMABLE, COAP_MSG_CODE_REQUEST_POST, THREAD_URI_SIMPLEENROLL, THREAD_CONTENT_FORMAT_PKCS10, csr_request, sizeof(csr_request), thread_ccm_simple_enroll_response_cb); return 0; } char *thread_ccm_parse_rat_response(uint8_t *data, uint16_t len) { char *ptr; for (ptr = (char *)data; (ptr - (char *)data) < len; ptr++) { if (*ptr == 'd') { if (!strncmp(ptr, "domainCAcert", 12)) { return ptr; } } } return NULL; } static int thread_ccm_rat_response_cb(int8_t service_id, uint8_t source_address[static 16], uint16_t source_port, sn_coap_hdr_s *response_ptr) { char *ca_cert_ptr = NULL; uint16_t ca_cert_len = 0; protocol_interface_info_entry_t *cur = protocol_stack_interface_info_get_by_id(thread_ccm_find_id_by_service(service_id)); if (!cur || !cur->thread_info) { return -1; } tr_info("Receiving RAT response sending csrattrs request"); if (!response_ptr || !response_ptr->payload_ptr) { tr_error("No response payload"); return -1; } // Parse CA certificate from RAT response // Replace with CBOR library, when the time is right // Here we receive private key for the CA certi ca_cert_ptr = thread_ccm_parse_rat_response(response_ptr->payload_ptr, response_ptr->payload_len); if (ca_cert_ptr) { ca_cert_ptr += 13; // Jump over "domainCAcert and some cbor format byte... ca_cert_len = common_read_16_bit((uint8_t *)ca_cert_ptr); // read length ca_cert_ptr += 2; tr_debug("CA cert len %d", ca_cert_len); /* Set domain CA certificate pointer and length */ if (thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_ptr) { ns_dyn_mem_free(thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_ptr); } thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_ptr = ns_dyn_mem_alloc(ca_cert_len); if (!thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_ptr) { return -1; } memcpy(thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_ptr, ca_cert_ptr, ca_cert_len); thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_len = ca_cert_len; } else { tr_error("Response parse failed"); } // TODO Verify nonce coap_service_request_send(service_id, COAP_REQUEST_OPTIONS_SECURE_BYPASS, source_address, source_port, COAP_MSG_TYPE_CONFIRMABLE, COAP_MSG_CODE_REQUEST_GET, THREAD_URI_CSRATTRS, THREAD_CONTENT_FORMAT_CSRATTRS, NULL, 0, thread_ccm_csrattrs_response_cb); return 0; } /*A2 # map(2) 67 # text(7) 76657273696F6E # "version" 61 # text(1) 31 # "1" 65 # text(5) 6E6F6E6365 # "nonce" 48 # bytes(8) 13ADD904605D973E # "\x13\xAD\xD9\x04`]\x97>" * */ static int thread_ccm_rat_request_build(uint8_t *rat_payload, int length) { uint8_t *ptr = rat_payload; if (length < 30) { return 0; } *rat_payload++ = 0xa2; // map (2) // text (7) "version" + unsigned (1) "1" *rat_payload++ = 0x67; memcpy(rat_payload, "version", 7); rat_payload += 7; *rat_payload++ = 0x61; *rat_payload++ = 0x31; // text (5) "nonce" + bytes (8) random nonce // todo: save nonce to verify response against reply. *rat_payload++ = 0x65; memcpy(rat_payload, "nonce", 5); rat_payload += 5; *rat_payload++ = 0x48; common_write_64_bit(randLIB_get_64bit(), rat_payload); rat_payload += 8; return rat_payload - ptr; } static int thread_ccm_ae_commission_start(int8_t interface_id, uint8_t parent_address[16], uint16_t port, thread_commission_done_cb *done_cb) { protocol_interface_info_entry_t *cur = protocol_stack_interface_info_get_by_id(interface_id); uint8_t rat_payload[30]; int rat_len; if (!done_cb || !cur) { return -1; } thread_info(cur)->ccm_credentials_ptr->coap_service_secure_session_id = coap_service_initialize(interface_id, port, COAP_SERVICE_OPTIONS_EPHEMERAL_PORT | COAP_SERVICE_OPTIONS_SECURE | 0x80, thread_ccm_security_start_cb, joiner_application_security_done_cb); if (0 > coap_service_certificate_set(thread_info(cur)->ccm_credentials_ptr->coap_service_secure_session_id, cur->thread_info->ccm_credentials_ptr->device_certificate_ptr, cur->thread_info->ccm_credentials_ptr->device_certificate_len, cur->thread_info->ccm_credentials_ptr->device_pk_ptr, cur->thread_info->ccm_credentials_ptr->device_pk_len)) { tr_debug("coap service certificate set failed"); return -1; } tr_debug("start ae commissioning: interface %d, parent: %s, port %d", interface_id, trace_ipv6(parent_address), port); thread_info(cur)->ccm_credentials_ptr->ccm_done_cb = done_cb; memcpy(thread_info(cur)->ccm_credentials_ptr->ccm_addr, parent_address, 16); thread_info(cur)->ccm_credentials_ptr->ccm_port = port; rat_len = thread_ccm_rat_request_build(rat_payload, sizeof(rat_payload)); if (rat_len == 0) { tr_debug("RAT request payload build failed"); return -1; } // todo: This might not be needed if no extra certificate processing made by device and should directly call simpleenroll coap_service_request_send(thread_info(cur)->ccm_credentials_ptr->coap_service_secure_session_id, COAP_REQUEST_OPTIONS_SECURE_BYPASS, parent_address, port, COAP_MSG_TYPE_CONFIRMABLE, COAP_MSG_CODE_REQUEST_POST, THREAD_URI_RAT, THREAD_CONTENT_FORMAT_AUDITNONCE, rat_payload, rat_len, thread_ccm_rat_response_cb); return 0; } static int thread_ccm_nmkp_response_cb(int8_t service_id, uint8_t source_address[static 16], uint16_t source_port, sn_coap_hdr_s *response_ptr) { tr_debug("nmkp provisioning done"); // re-attach in any case and close the secure connection thread_ccm_network_reattach(service_id, 1000, false); coap_service_close_secure_connection(service_id, source_address, source_port); // CoAP message failed - try to reattach if (!response_ptr || !response_ptr->payload_ptr) { tr_debug("nmkp provisioning failed - no response"); return -1; } if (thread_meshcop_tlv_find(response_ptr->payload_ptr, response_ptr->payload_len, MESHCOP_TLV_NETWORK_MASTER_KEY, NULL) < 16 || thread_meshcop_tlv_find(response_ptr->payload_ptr, response_ptr->payload_len, MESHCOP_TLV_XPANID, NULL) < 8 || thread_meshcop_tlv_find(response_ptr->payload_ptr, response_ptr->payload_len, MESHCOP_TLV_NETWORK_NAME, NULL) == 0 || thread_meshcop_tlv_find(response_ptr->payload_ptr, response_ptr->payload_len, MESHCOP_TLV_CHANNEL, NULL) == 0 || thread_meshcop_tlv_find(response_ptr->payload_ptr, response_ptr->payload_len, MESHCOP_TLV_PANID, NULL) == 0 || thread_meshcop_tlv_find(response_ptr->payload_ptr, response_ptr->payload_len, MESHCOP_TLV_PSKC, NULL) < 16) { // Absolutely minimum we must have is master secret to attach. // If commissioner wants to be connected we must have PSKc,Name,Xpanid // If there is some fields missing we could attach, but timestamp must be set to 0 which will then cause synchronization tr_error("Not include all TLv's %s", trace_array(response_ptr->payload_ptr, response_ptr->payload_len)); return -1; } thread_joiner_application_active_configuration_update(thread_ccm_find_id_by_service(service_id), response_ptr->payload_ptr, response_ptr->payload_len, meshcop_nmkp_resp_ignore, sizeof(meshcop_nmkp_resp_ignore)); return 0; } static int thread_ccm_nmkp_commission_start(int8_t interface_id, uint8_t parent_address[16], uint16_t port, thread_commission_done_cb *done_cb) { protocol_interface_info_entry_t *cur = protocol_stack_interface_info_get_by_id(interface_id); if (!done_cb || !cur) { return -1; } thread_info(cur)->ccm_credentials_ptr->coap_service_secure_session_id = coap_service_initialize(cur->id, port, COAP_SERVICE_OPTIONS_EPHEMERAL_PORT | COAP_SERVICE_OPTIONS_SECURE | 0x80, thread_ccm_security_start_cb, NULL); if (cur->thread_info->ccm_credentials_ptr) { //Use certificate if set otherwise use PSKd if (0 > coap_service_certificate_set(thread_info(cur)->ccm_credentials_ptr->coap_service_secure_session_id, cur->thread_info->ccm_credentials_ptr->domain_certificate_ptr, cur->thread_info->ccm_credentials_ptr->domain_certificate_len, cur->thread_info->ccm_credentials_ptr->domain_pk_ptr, cur->thread_info->ccm_credentials_ptr->domain_pk_len)) { tr_debug("coap service certificate set failed"); return -1; } } tr_debug("start nmkp commissioning: interface %d, parent: %s, port %d", interface_id, trace_ipv6(parent_address), port); thread_info(cur)->ccm_credentials_ptr->ccm_done_cb = done_cb; memcpy(thread_info(cur)->ccm_credentials_ptr->ccm_addr, parent_address, 16); thread_info(cur)->ccm_credentials_ptr->ccm_port = port; uint8_t *ptr, *data_ptr; uint16_t length; tr_debug("Thread joiner finalisation send"); length = thread_joiner_application_device_configuration_length(thread_joiner_application_get_device_config(interface_id)); data_ptr = ptr = ns_dyn_mem_alloc(length); if (!ptr) { tr_error("Failed to start Commissioning"); return -1; } ptr = thread_joiner_application_device_configuration_build(ptr, thread_joiner_application_get_device_config(interface_id)); coap_service_request_send(thread_info(cur)->ccm_credentials_ptr->coap_service_secure_session_id, COAP_REQUEST_OPTIONS_SECURE_BYPASS, parent_address, port, COAP_MSG_TYPE_CONFIRMABLE, COAP_MSG_CODE_REQUEST_POST, THREAD_URI_BBR_NMKP_REQ, COAP_CT_OCTET_STREAM, data_ptr, ptr - data_ptr, thread_ccm_nmkp_response_cb); ns_dyn_mem_free(data_ptr); return 0; } /* * Allocate thread commercial commission mode (CCM) struct */ void thread_ccm_allocate(protocol_interface_info_entry_t *cur) { if (thread_info(cur)->ccm_credentials_ptr) { return; } thread_info(cur)->ccm_credentials_ptr = ns_dyn_mem_alloc(sizeof(thread_ccm_credentials_t)); if (!thread_info(cur)->ccm_credentials_ptr) { return; } memset(thread_info(cur)->ccm_credentials_ptr, 0, sizeof(thread_ccm_credentials_t)); thread_info(cur)->ccm_credentials_ptr->interface_id = cur->id; ns_list_add_to_start(&ccm_instance_list, thread_info(cur)->ccm_credentials_ptr); } /* * Free thread commercial commission mode (CCM) struct */ void thread_ccm_free(protocol_interface_info_entry_t *cur) { if (!cur || !thread_info(cur) || !thread_info(cur)->ccm_credentials_ptr) { return; } if (thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr) { ns_dyn_mem_free(thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr); } if (thread_info(cur)->ccm_credentials_ptr->domain_pk_ptr) { ns_dyn_mem_free(thread_info(cur)->ccm_credentials_ptr->domain_pk_ptr); } ns_list_remove(&ccm_instance_list, thread_info(cur)->ccm_credentials_ptr); ns_dyn_mem_free(thread_info(cur)->ccm_credentials_ptr); thread_info(cur)->ccm_credentials_ptr = NULL; } int thread_ccm_device_certificate_set(protocol_interface_info_entry_t *cur, const unsigned char *device_certificate_ptr, uint16_t device_certificate_len, const unsigned char *priv_key_ptr, uint16_t priv_key_len) { if (!thread_info(cur)->ccm_credentials_ptr) { thread_ccm_allocate(cur); } thread_info(cur)->ccm_credentials_ptr->device_certificate_ptr = device_certificate_ptr; thread_info(cur)->ccm_credentials_ptr->device_certificate_len = device_certificate_len; thread_info(cur)->ccm_credentials_ptr->device_pk_ptr = priv_key_ptr; thread_info(cur)->ccm_credentials_ptr->device_pk_len = priv_key_len; return 0; } bool thread_ccm_network_certificate_available(protocol_interface_info_entry_t *cur) { if (!thread_info(cur)->ccm_credentials_ptr || !thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr) { return false; } return true; } int thread_ccm_network_certificate_set(protocol_interface_info_entry_t *cur, const unsigned char *domain_certificate_ptr, uint16_t domain_certificate_len) { if (!thread_info(cur)->ccm_credentials_ptr) { thread_ccm_allocate(cur); } if (thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr) { ns_dyn_mem_free(thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr); thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr = NULL; thread_info(cur)->ccm_credentials_ptr->domain_certificate_len = 0; } /* Set domain certificate pointer and length */ if (domain_certificate_ptr) { thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr = ns_dyn_mem_alloc(domain_certificate_len + thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_len); if (!thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr) { ns_dyn_mem_free(thread_info(cur)->ccm_credentials_ptr); return -1; } memcpy(thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr, domain_certificate_ptr, domain_certificate_len); if (thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_ptr) { memcpy(thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr + domain_certificate_len, thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_ptr, thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_len); } thread_info(cur)->ccm_credentials_ptr->domain_certificate_len = domain_certificate_len + thread_info(cur)->ccm_credentials_ptr->domain_ca_certificate_len; } return 0; } int thread_ccm_network_private_key_set(protocol_interface_info_entry_t *cur, const unsigned char *priv_key_ptr, uint16_t priv_key_len) { if (!thread_info(cur)->ccm_credentials_ptr) { thread_ccm_allocate(cur); } if (thread_info(cur)->ccm_credentials_ptr->domain_pk_ptr) { ns_dyn_mem_free(thread_info(cur)->ccm_credentials_ptr->domain_pk_ptr); thread_info(cur)->ccm_credentials_ptr->domain_pk_ptr = NULL; thread_info(cur)->ccm_credentials_ptr->domain_pk_len = 0; } if (priv_key_ptr) { thread_info(cur)->ccm_credentials_ptr->domain_pk_ptr = ns_dyn_mem_alloc(priv_key_len); if (!thread_info(cur)->ccm_credentials_ptr->domain_pk_ptr) { ns_dyn_mem_free(thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr); ns_dyn_mem_free(thread_info(cur)->ccm_credentials_ptr); return -1; } memcpy(thread_info(cur)->ccm_credentials_ptr->domain_pk_ptr, priv_key_ptr, priv_key_len); thread_info(cur)->ccm_credentials_ptr->domain_pk_len = priv_key_len; } return 0; } int thread_ccm_thread_name_set(protocol_interface_info_entry_t *cur, char thread_name[16]) { if (!thread_info(cur)->ccm_credentials_ptr) { thread_info(cur)->ccm_credentials_ptr = ns_dyn_mem_alloc(sizeof(thread_ccm_credentials_t)); if (!thread_info(cur)->ccm_credentials_ptr) { return -1; } memset(thread_info(cur)->ccm_credentials_ptr, 0, sizeof(thread_ccm_credentials_t)); } memset(thread_info(cur)->ccm_credentials_ptr->domain_name, 0, 16); memcpy(thread_info(cur)->ccm_credentials_ptr->domain_name, thread_name, 16); return 0; } int thread_ccm_commission_start(protocol_interface_info_entry_t *cur, uint8_t parent_address[16], discovery_response_list_t *nwk_info, thread_commission_done_cb *done_cb) { if (thread_info(cur)->version >= THREAD_VERSION_1_2 && thread_info(cur)->ccm_credentials_ptr) { if (thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr && nwk_info->ccm_info.nmk_port) { return thread_ccm_nmkp_commission_start(cur->id, parent_address, nwk_info->ccm_info.nmk_port, done_cb); } else if (thread_info(cur)->ccm_credentials_ptr->device_certificate_ptr && nwk_info->ccm_info.ae_port) { return thread_ccm_ae_commission_start(cur->id, parent_address, nwk_info->ccm_info.ae_port, done_cb); } else if (nwk_info->joiner_port) { return thread_joiner_application_pskd_commission_start(cur->id, parent_address, nwk_info->joiner_port, nwk_info->pan_id, nwk_info->extented_pan_id, nwk_info->channel, done_cb); } else { return -1; } } return -1; } discovery_response_list_t *thread_ccm_network_select(protocol_interface_info_entry_t *cur, thread_nwk_discovery_response_list_t *discover_response) { discovery_response_list_t *discovered_network_ptr = NULL; if (thread_info(cur)->version >= THREAD_VERSION_1_2 && thread_info(cur)->ccm_credentials_ptr) { /* If we have domain certificate, search for domain to join */ if (thread_info(cur)->ccm_credentials_ptr->domain_certificate_ptr) { ns_list_foreach_safe(discovery_response_list_t, cur_class, discover_response) { if ((stringlen((const char *) cur_class->ccm_info.domain_name, 16)) && (!memcmp(cur_class->ccm_info.domain_name, thread_info(cur)->ccm_credentials_ptr->domain_name, stringlen((const char *) cur_class->ccm_info.domain_name, 16)))) { discovered_network_ptr = cur_class; break; } } } /* No domain, use device certificate*/ if (!discovered_network_ptr) { ns_list_foreach_safe(discovery_response_list_t, cur_class, discover_response) { if (cur_class->ccm_info.ccm_supported) { discovered_network_ptr = cur_class; break; } } } } return discovered_network_ptr; } uint8_t thread_ccm_thread_name_length_get(protocol_interface_info_entry_t *cur) { if (!thread_info(cur)->ccm_credentials_ptr) { return 0; } return stringlen((const char *)thread_info(cur)->ccm_credentials_ptr->domain_name, 16); } uint8_t *thread_ccm_thread_name_ptr_get(protocol_interface_info_entry_t *cur) { if (!thread_info(cur)->ccm_credentials_ptr) { return NULL; } return thread_info(cur)->ccm_credentials_ptr->domain_name; } int thread_ccm_network_certificate_enable(protocol_interface_info_entry_t *cur, int8_t coap_service_id) { // SET certificates if (cur->thread_info->ccm_credentials_ptr && cur->thread_info->ccm_credentials_ptr->domain_certificate_ptr) { if (0 > coap_service_certificate_set(coap_service_id, cur->thread_info->ccm_credentials_ptr->domain_certificate_ptr, cur->thread_info->ccm_credentials_ptr->domain_certificate_len, cur->thread_info->ccm_credentials_ptr->domain_pk_ptr, cur->thread_info->ccm_credentials_ptr->domain_pk_len)) { tr_debug("pBBR certificate set failed"); return -1; } } return 0; } static int thread_ccm_reenroll_resp_cb(int8_t service_id, uint8_t source_address[static 16], uint16_t source_port, sn_coap_hdr_s *response_ptr) { (void) service_id; (void) source_address; (void) source_port; protocol_interface_info_entry_t *cur = protocol_stack_interface_info_get_by_id(thread_ccm_find_id_by_service(service_id)); // Close secure connection coap_service_close_secure_connection(service_id, source_address, source_port); if (!response_ptr || !cur) { tr_debug("re-enroll failed"); return -1; } tr_debug("re-enroll resp len %d", response_ptr->payload_len); // todo:check new certificate // Update certificate if (0 == thread_ccm_enroll_parse(cur, response_ptr->payload_ptr, response_ptr->payload_len)) { // start NMKP with new certificates thread_ccm_network_reattach(service_id, 5000, true); } return 0; } static int thread_ccm_reenroll_csrattrs_resp_cb(int8_t service_id, uint8_t source_address[static 16], uint16_t source_port, sn_coap_hdr_s *response_ptr) { (void) service_id; if (!response_ptr) { tr_debug("No response to re-enroll csrattr req"); return -1; } coap_service_request_send(service_id, COAP_REQUEST_OPTIONS_SECURE_BYPASS, source_address, source_port, COAP_MSG_TYPE_CONFIRMABLE, COAP_MSG_CODE_REQUEST_POST, THREAD_URI_SIMPLEREENROLL, THREAD_CONTENT_FORMAT_PKCS10, csr_request, sizeof(csr_request), thread_ccm_reenroll_resp_cb); return 0; } static int thread_ccm_reenroll_registrar_addr_resp_cb(int8_t service_id, uint8_t source_address[static 16], uint16_t source_port, sn_coap_hdr_s *response_ptr) { (void) service_id; (void) source_address; (void) source_port; protocol_interface_info_entry_t *cur = protocol_stack_interface_info_get_by_id(thread_management_server_interface_id_get(service_id)); uint8_t *addr_ptr = NULL; if (!response_ptr) { tr_debug("No response to registrar addr get"); return -1; } if (!thread_meshcop_tlv_find(response_ptr->payload_ptr, response_ptr->payload_len, MESHCOP_TLV_REGISTRAR_IPV6_ADDRESS, &addr_ptr)) { tr_debug("Registrar addr get failed"); return -1; } tr_debug("Received registrar address %s", trace_ipv6(addr_ptr)); //todo: what port? thread_info(cur)->ccm_credentials_ptr->coap_service_secure_session_id = coap_service_initialize(cur->id, 5684, COAP_SERVICE_OPTIONS_EPHEMERAL_PORT | COAP_SERVICE_OPTIONS_SECURE, thread_ccm_security_start_cb, NULL); if (cur->thread_info->ccm_credentials_ptr) { //Use certificate if set otherwise use PSKd if (0 > coap_service_certificate_set(thread_info(cur)->ccm_credentials_ptr->coap_service_secure_session_id, cur->thread_info->ccm_credentials_ptr->domain_certificate_ptr, cur->thread_info->ccm_credentials_ptr->domain_certificate_len, cur->thread_info->ccm_credentials_ptr->domain_pk_ptr, cur->thread_info->ccm_credentials_ptr->domain_pk_len)) { tr_debug("coap service certificate set failed"); return -1; } } coap_service_request_send(thread_info(cur)->ccm_credentials_ptr->coap_service_secure_session_id, COAP_REQUEST_OPTIONS_SECURE_BYPASS, addr_ptr, THREAD_DEFAULT_REGISTRAR_PORT, // TBD: get port from somewhere COAP_MSG_TYPE_CONFIRMABLE, COAP_MSG_CODE_REQUEST_GET, THREAD_URI_CSRATTRS, THREAD_CONTENT_FORMAT_CSRATTRS, NULL, 0, thread_ccm_reenroll_csrattrs_resp_cb); return 0; } int thread_ccm_reenrollment_start(protocol_interface_info_entry_t *cur, int8_t service_id, uint8_t *pbbr_addr) { (void) cur; uint8_t get_tlv[3] = {0}; uint8_t *ptr = get_tlv; uint8_t type = MESHCOP_TLV_REGISTRAR_IPV6_ADDRESS; //Payload = get tlv including registrar IPV6 address TLV (68) ptr = thread_meshcop_tlv_data_write(get_tlv, MESHCOP_TLV_GET, 1, &type); // Send MGMT_BBR_GET.req message to the Primary BBR, requesting the Registrar IPv6 Address TLV coap_service_request_send(service_id, COAP_REQUEST_OPTIONS_NONE, pbbr_addr, THREAD_MANAGEMENT_PORT, COAP_MSG_TYPE_CONFIRMABLE, COAP_MSG_CODE_REQUEST_GET, THREAD_URI_BBR_DATA_REQ, COAP_CT_NONE, get_tlv, ptr - get_tlv, thread_ccm_reenroll_registrar_addr_resp_cb); return 0; } #endif /* HAVE_THREAD_V2 */