ref: a7f8b59bfb1641dea7f30a267c6bf7e882d9edbf
src/libs/mynewt-nimble/nimble/host/mesh/src/prov.c
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/* Bluetooth Mesh */ /* * Copyright (c) 2017 Intel Corporation * * SPDX-License-Identifier: Apache-2.0 */ #include "syscfg/syscfg.h" #define MESH_LOG_MODULE BLE_MESH_PROV_LOG #include <errno.h> #include "mesh/mesh.h" #include "mesh_priv.h" #include "crypto.h" #include "atomic.h" #include "net.h" #include "access.h" #include "foundation.h" #include "prov.h" #include "testing.h" struct bt_mesh_prov_link bt_mesh_prov_link; const struct bt_mesh_prov *bt_mesh_prov; static void pub_key_ready(const uint8_t *pkey) { if (!pkey) { BT_WARN("Public key not available"); return; } BT_DBG("Local public key ready"); } int bt_mesh_prov_reset_state(void (*func)(const uint8_t key[64])) { BT_DBG("bt_mesh_prov_reset_state"); int err; static struct bt_pub_key_cb pub_key_cb; const size_t offset = offsetof(struct bt_mesh_prov_link, dhkey); pub_key_cb.func = func ? func : pub_key_ready; /* Disable Attention Timer if it was set */ if (bt_mesh_prov_link.conf_inputs[0]) { bt_mesh_attention(NULL, 0); } atomic_clear(bt_mesh_prov_link.flags); (void)memset((uint8_t *)&bt_mesh_prov_link + offset, 0, sizeof(bt_mesh_prov_link) - offset); err = bt_pub_key_gen(&pub_key_cb); if (err) { BT_ERR("Failed to generate public key (%d)", err); return err; } return 0; } static bt_mesh_output_action_t output_action(uint8_t action) { switch (action) { case OUTPUT_OOB_BLINK: return BT_MESH_BLINK; case OUTPUT_OOB_BEEP: return BT_MESH_BEEP; case OUTPUT_OOB_VIBRATE: return BT_MESH_VIBRATE; case OUTPUT_OOB_NUMBER: return BT_MESH_DISPLAY_NUMBER; case OUTPUT_OOB_STRING: return BT_MESH_DISPLAY_STRING; default: return BT_MESH_NO_OUTPUT; } } static bt_mesh_input_action_t input_action(uint8_t action) { switch (action) { case INPUT_OOB_PUSH: return BT_MESH_PUSH; case INPUT_OOB_TWIST: return BT_MESH_TWIST; case INPUT_OOB_NUMBER: return BT_MESH_ENTER_NUMBER; case INPUT_OOB_STRING: return BT_MESH_ENTER_STRING; default: return BT_MESH_NO_INPUT; } } int bt_mesh_prov_auth(uint8_t method, uint8_t action, uint8_t size) { bt_mesh_output_action_t output; bt_mesh_input_action_t input; switch (method) { case AUTH_METHOD_NO_OOB: if (action || size) { return -EINVAL; } (void)memset(bt_mesh_prov_link.auth, 0, sizeof(bt_mesh_prov_link.auth)); return 0; case AUTH_METHOD_STATIC: if (action || size) { return -EINVAL; } atomic_set_bit(bt_mesh_prov_link.flags, OOB_STATIC_KEY); return 0; case AUTH_METHOD_OUTPUT: output = output_action(action); if (!output) { return -EINVAL; } if (!(bt_mesh_prov->output_actions & output)) { return -EINVAL; } if (size > bt_mesh_prov->output_size) { return -EINVAL; } atomic_set_bit(bt_mesh_prov_link.flags, NOTIFY_INPUT_COMPLETE); if (output == BT_MESH_DISPLAY_STRING) { unsigned char str[9]; uint8_t i; bt_rand(str, size); /* Normalize to '0' .. '9' & 'A' .. 'Z' */ for (i = 0; i < size; i++) { str[i] %= 36; if (str[i] < 10) { str[i] += '0'; } else { str[i] += 'A' - 10; } } str[size] = '\0'; memcpy(bt_mesh_prov_link.auth, str, size); memset(bt_mesh_prov_link.auth + size, 0, sizeof(bt_mesh_prov_link.auth) - size); return bt_mesh_prov->output_string((char *)str); } else { uint32_t div[8] = { 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000 }; uint32_t num; bt_rand(&num, sizeof(num)); num %= div[size - 1]; sys_put_be32(num, &bt_mesh_prov_link.auth[12]); memset(bt_mesh_prov_link.auth, 0, 12); return bt_mesh_prov->output_number(output, num); } case AUTH_METHOD_INPUT: input = input_action(action); if (!input) { return -EINVAL; } if (!(bt_mesh_prov->input_actions & input)) { return -EINVAL; } if (size > bt_mesh_prov->input_size) { return -EINVAL; } if (input == BT_MESH_ENTER_STRING) { atomic_set_bit(bt_mesh_prov_link.flags, WAIT_STRING); } else { atomic_set_bit(bt_mesh_prov_link.flags, WAIT_NUMBER); } return bt_mesh_prov->input(input, size); default: return -EINVAL; } } int bt_mesh_input_number(uint32_t num) { BT_DBG("%u", (unsigned) num); if (!atomic_test_and_clear_bit(bt_mesh_prov_link.flags, WAIT_NUMBER)) { return -EINVAL; } sys_put_be32(num, &bt_mesh_prov_link.auth[12]); bt_mesh_prov_link.role->input_complete(); return 0; } int bt_mesh_input_string(const char *str) { BT_DBG("%s", str); if (!atomic_test_and_clear_bit(bt_mesh_prov_link.flags, WAIT_STRING)) { return -EINVAL; } strncpy((char *)bt_mesh_prov_link.auth, str, bt_mesh_prov->input_size); bt_mesh_prov_link.role->input_complete(); return 0; } const struct bt_mesh_prov *bt_mesh_prov_get(void) { return bt_mesh_prov; } bool bt_mesh_prov_active(void) { return atomic_test_bit(bt_mesh_prov_link.flags, LINK_ACTIVE); } static void prov_recv(const struct prov_bearer *bearer, void *cb_data, struct os_mbuf *buf) { static const uint8_t op_len[10] = { [PROV_INVITE] = 1, [PROV_CAPABILITIES] = 11, [PROV_START] = 5, [PROV_PUB_KEY] = 64, [PROV_INPUT_COMPLETE] = 0, [PROV_CONFIRM] = 16, [PROV_RANDOM] = 16, [PROV_DATA] = 33, [PROV_COMPLETE] = 0, [PROV_FAILED] = 1, }; uint8_t type = buf->om_data[0]; BT_DBG("type 0x%02x len %u", type, buf->om_len); if (type >= ARRAY_SIZE(bt_mesh_prov_link.role->op)) { BT_ERR("Unknown provisioning PDU type 0x%02x", type); bt_mesh_prov_link.role->error(PROV_ERR_NVAL_FMT); return; } if ((type != PROV_FAILED && type != bt_mesh_prov_link.expect) || !bt_mesh_prov_link.role->op[type]) { BT_WARN("Unexpected msg 0x%02x != 0x%02x", type, bt_mesh_prov_link.expect); bt_mesh_prov_link.role->error(PROV_ERR_UNEXP_PDU); return; } if (1 + op_len[type] != buf->om_len) { BT_ERR("Invalid length %u for type 0x%02x", buf->om_len, type); bt_mesh_prov_link.role->error(PROV_ERR_NVAL_FMT); return; } bt_mesh_prov_link.role->op[type](&buf->om_data[1]); } static void prov_link_opened(const struct prov_bearer *bearer, void *cb_data) { atomic_set_bit(bt_mesh_prov_link.flags, LINK_ACTIVE); BT_ERR("bt_mesh_prov->link_open"); if (bt_mesh_prov->link_open) { bt_mesh_prov->link_open(bearer->type); } BT_ERR("bt_mesh_prov_link.bearer"); bt_mesh_prov_link.bearer = bearer; BT_ERR("bt_mesh_prov_link.role->link_opened"); BT_ERR("%p", bt_mesh_prov_link.role); BT_ERR("%p", bt_mesh_prov_link.role->link_opened); if (bt_mesh_prov_link.role->link_opened) { bt_mesh_prov_link.role->link_opened(); } BT_ERR("done"); } static void prov_link_closed(const struct prov_bearer *bearer, void *cb_data, enum prov_bearer_link_status reason) { if (bt_mesh_prov_link.role->link_closed) { bt_mesh_prov_link.role->link_closed(); } if (bt_mesh_prov->link_close) { bt_mesh_prov->link_close(bearer->type); } } static void prov_bearer_error(const struct prov_bearer *bearer, void *cb_data, uint8_t err) { if (bt_mesh_prov_link.role->error) { bt_mesh_prov_link.role->error(err); } } static const struct prov_bearer_cb prov_bearer_cb = { .link_opened = prov_link_opened, .link_closed = prov_link_closed, .error = prov_bearer_error, .recv = prov_recv, }; const struct prov_bearer_cb *bt_mesh_prov_bearer_cb_get(void) { return &prov_bearer_cb; } void bt_mesh_prov_complete(uint16_t net_idx, uint16_t addr) { if (bt_mesh_prov->complete) { bt_mesh_prov->complete(net_idx, addr); } } void bt_mesh_prov_reset(void) { BT_DBG("bt_mesh_prov_reset"); if (IS_ENABLED(CONFIG_BT_MESH_PB_ADV)) { pb_adv_reset(); } if (IS_ENABLED(CONFIG_BT_MESH_PB_GATT)) { pb_gatt_reset(); } bt_mesh_prov_reset_state(NULL); if (bt_mesh_prov->reset) { bt_mesh_prov->reset(); } } int bt_mesh_prov_init(const struct bt_mesh_prov *prov_info) { if (!prov_info) { BT_ERR("No provisioning context provided"); return -EINVAL; } bt_mesh_prov = prov_info; if (IS_ENABLED(CONFIG_BT_MESH_PB_ADV)) { pb_adv_init(); } if (IS_ENABLED(CONFIG_BT_MESH_PB_GATT)) { pb_gatt_init(); } return bt_mesh_prov_reset_state(NULL); } |