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Code Issues Releases Wiki Activity

Introduce hex parsing & formatting helper functions (#2882)

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This commit is contained in:
Oxan van Leeuwen
2021-12-12 21:15:23 +01:00
committed by GitHub
parent b2f05faee0
commit beeb0c7c5a
20 changed files with 186 additions and 109 deletions
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16
esphome/components/xiaomi_ble/xiaomi_ble.cpp
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@@ -217,7 +217,7 @@ optional<XiaomiParseResult> parse_xiaomi_header(const esp32_ble_tracker::Service
bool decrypt_xiaomi_payload(std::vector<uint8_t> &raw, const uint8_t *bindkey, const uint64_t &address) {
if (!((raw.size() == 19) || ((raw.size() >= 22) && (raw.size() <= 24)))) {
ESP_LOGVV(TAG, "decrypt_xiaomi_payload(): data packet has wrong size (%d)!", raw.size());
ESP_LOGVV(TAG, " Packet : %s", hexencode(raw.data(), raw.size()).c_str());
ESP_LOGVV(TAG, " Packet : %s", format_hex_pretty(raw.data(), raw.size()).c_str());
return false;
}
@@ -274,12 +274,12 @@ bool decrypt_xiaomi_payload(std::vector<uint8_t> &raw, const uint8_t *bindkey, c
memcpy(mac_address + 4, mac_reverse + 1, 1);
memcpy(mac_address + 5, mac_reverse, 1);
ESP_LOGVV(TAG, "decrypt_xiaomi_payload(): authenticated decryption failed.");
ESP_LOGVV(TAG, " MAC address : %s", hexencode(mac_address, 6).c_str());
ESP_LOGVV(TAG, " Packet : %s", hexencode(raw.data(), raw.size()).c_str());
ESP_LOGVV(TAG, " Key : %s", hexencode(vector.key, vector.keysize).c_str());
ESP_LOGVV(TAG, " Iv : %s", hexencode(vector.iv, vector.ivsize).c_str());
ESP_LOGVV(TAG, " Cipher : %s", hexencode(vector.ciphertext, vector.datasize).c_str());
ESP_LOGVV(TAG, " Tag : %s", hexencode(vector.tag, vector.tagsize).c_str());
ESP_LOGVV(TAG, " MAC address : %s", format_hex_pretty(mac_address, 6).c_str());
ESP_LOGVV(TAG, " Packet : %s", format_hex_pretty(raw.data(), raw.size()).c_str());
ESP_LOGVV(TAG, " Key : %s", format_hex_pretty(vector.key, vector.keysize).c_str());
ESP_LOGVV(TAG, " Iv : %s", format_hex_pretty(vector.iv, vector.ivsize).c_str());
ESP_LOGVV(TAG, " Cipher : %s", format_hex_pretty(vector.ciphertext, vector.datasize).c_str());
ESP_LOGVV(TAG, " Tag : %s", format_hex_pretty(vector.tag, vector.tagsize).c_str());
mbedtls_ccm_free(&ctx);
return false;
}
@@ -295,7 +295,7 @@ bool decrypt_xiaomi_payload(std::vector<uint8_t> &raw, const uint8_t *bindkey, c
raw[0] &= ~0x08;
ESP_LOGVV(TAG, "decrypt_xiaomi_payload(): authenticated decryption passed.");
ESP_LOGVV(TAG, " Plaintext : %s, Packet : %d", hexencode(raw.data() + cipher_pos, vector.datasize).c_str(),
ESP_LOGVV(TAG, " Plaintext : %s, Packet : %d", format_hex_pretty(raw.data() + cipher_pos, vector.datasize).c_str(),
static_cast<int>(raw[4]));
mbedtls_ccm_free(&ctx);