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Code Issues Releases Wiki Activity

reduce magic numbers

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This commit is contained in:
J. Nick Koston
2025-09-23 09:45:02 -05:00
parent ed5c0be283
commit 7e273879b5
3 changed files with 13 additions and 12 deletions
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19
esphome/components/esphome/ota/ota_esphome.cpp
View File

@@ -268,14 +268,14 @@ void ESPHomeOTAComponent::handle_data_() {
// TODO: Remove this entire ifdef block in 2026.1.0
if (client_supports_sha256) {
sha256::SHA256 sha_hasher;
auth_success = this->perform_hash_auth_(&sha_hasher, this->password_, 16, ota::OTA_RESPONSE_REQUEST_SHA256_AUTH,
auth_success = this->perform_hash_auth_(&sha_hasher, this->password_, ota::OTA_RESPONSE_REQUEST_SHA256_AUTH,
LOG_STR("SHA256"), sbuf);
} else {
#ifdef USE_OTA_MD5
ESP_LOGW(TAG, "Using MD5 auth for compatibility (deprecated)");
md5::MD5Digest md5_hasher;
auth_success = this->perform_hash_auth_(&md5_hasher, this->password_, 8, ota::OTA_RESPONSE_REQUEST_AUTH,
LOG_STR("MD5"), sbuf);
auth_success =
this->perform_hash_auth_(&md5_hasher, this->password_, ota::OTA_RESPONSE_REQUEST_AUTH, LOG_STR("MD5"), sbuf);
#endif // USE_OTA_MD5
}
#else
@@ -286,7 +286,7 @@ void ESPHomeOTAComponent::handle_data_() {
goto error; // NOLINT(cppcoreguidelines-avoid-goto)
}
sha256::SHA256 sha_hasher;
auth_success = this->perform_hash_auth_(&sha_hasher, this->password_, 16, ota::OTA_RESPONSE_REQUEST_SHA256_AUTH,
auth_success = this->perform_hash_auth_(&sha_hasher, this->password_, ota::OTA_RESPONSE_REQUEST_SHA256_AUTH,
LOG_STR("SHA256"), sbuf);
#endif // ALLOW_OTA_DOWNGRADE_MD5
#else
@@ -295,7 +295,7 @@ void ESPHomeOTAComponent::handle_data_() {
#ifdef USE_OTA_MD5
md5::MD5Digest md5_hasher;
auth_success =
this->perform_hash_auth_(&md5_hasher, this->password_, 8, ota::OTA_RESPONSE_REQUEST_AUTH, LOG_STR("MD5"), sbuf);
this->perform_hash_auth_(&md5_hasher, this->password_, ota::OTA_RESPONSE_REQUEST_AUTH, LOG_STR("MD5"), sbuf);
#endif // USE_OTA_MD5
#endif // USE_OTA_SHA256
@@ -529,10 +529,11 @@ void ESPHomeOTAComponent::log_auth_warning_(const LogString *action, const LogSt
}
// Non-template function definition to reduce binary size
bool ESPHomeOTAComponent::perform_hash_auth_(HashBase *hasher, const std::string &password, size_t nonce_size,
uint8_t auth_request, const LogString *name, char *buf) {
bool ESPHomeOTAComponent::perform_hash_auth_(HashBase *hasher, const std::string &password, uint8_t auth_request,
const LogString *name, char *buf) {
// Get sizes from the hasher
const size_t hex_size = hasher->get_size() * 2; // Hex is twice the byte size
const size_t hex_size = hasher->get_size() * 2; // Hex is twice the byte size
const size_t nonce_hex_len = hasher->get_size() / 2; // Nonce hex length is 1/4 of full hex size
// Use the provided buffer for all hex operations
@@ -552,7 +553,7 @@ bool ESPHomeOTAComponent::perform_hash_auth_(HashBase *hasher, const std::string
nonce_bytes[2] = (r1 >> 8) & 0xFF;
nonce_bytes[3] = r1 & 0xFF;
if (nonce_size == 8) {
if (nonce_hex_len == 8) {
// MD5: 8 chars = "%08x" format = 4 bytes from one random uint32
hasher->add(nonce_bytes, 4);
} else {

4
esphome/components/esphome/ota/ota_esphome.h
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@@ -32,8 +32,8 @@ class ESPHomeOTAComponent : public ota::OTAComponent {
void handle_handshake_();
void handle_data_();
#ifdef USE_OTA_PASSWORD
bool perform_hash_auth_(HashBase *hasher, const std::string &password, size_t nonce_size, uint8_t auth_request,
const LogString *name, char *buf);
bool perform_hash_auth_(HashBase *hasher, const std::string &password, uint8_t auth_request, const LogString *name,
char *buf);
void log_auth_warning_(const LogString *action, const LogString *hash_name);
#endif // USE_OTA_PASSWORD
bool readall_(uint8_t *buf, size_t len);

2
esphome/espota2.py
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@@ -166,7 +166,7 @@ def check_error(data: list[int] | bytes, expect: int | list[int] | None) -> None
raise OTAError("Error: Authentication invalid. Is the password correct?")
if dat == RESPONSE_ERROR_WRITING_FLASH:
raise OTAError(
"Error: Wring OTA data to flash memory failed. See USB logs for more "
"Error: Writing OTA data to flash memory failed. See USB logs for more "
"information."
)
if dat == RESPONSE_ERROR_UPDATE_END: