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Add connection error codes

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Summary:
related to T13651
- separate code related to reason codes into their own header
- introduce new connection error codes that will be return when a non-recoverable error occurs in connect_op
- add appropriate coverage tests

Reviewers: ivica

Reviewed By: ivica

Subscribers: miljen, iljazovic

Differential Revision: https://repo.mireo.local/D27808
This commit is contained in:
Korina Šimičević
2024-02-05 15:25:05 +01:00
parent e0ae572e1b
commit d1d50d029d
13 changed files with 812 additions and 522 deletions
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717
include/async_mqtt5/error.hpp
View File

@@ -1,9 +1,6 @@
#ifndef ASYNC_MQTT5_ERROR_HPP
#define ASYNC_MQTT5_ERROR_HPP
#include <algorithm>
#include <optional>
#include <boost/asio/error.hpp>
namespace async_mqtt5 {
@@ -14,7 +11,7 @@ namespace async_mqtt5 {
* \details Represents all Reason Codes that the Client can send to the Server
* in the \__DISCONNECT\__ packet as the reason for the disconnection.
*/
enum class disconnect_rc_e : std::uint8_t {
enum class disconnect_rc_e : uint8_t {
/** Close the connection normally. Do not send the Will Message. */
normal_disconnection = 0x00,
@@ -25,7 +22,7 @@ enum class disconnect_rc_e : std::uint8_t {
namespace detail {
enum class disconnect_rc_e : std::uint8_t {
enum class disconnect_rc_e : uint8_t {
normal_disconnection = 0x00,
disconnect_with_will_message = 0x04,
@@ -48,44 +45,44 @@ enum class disconnect_rc_e : std::uint8_t {
namespace client {
/**
* \brief MQTT client error codes.
* \brief Defines error codes related to MQTT client.
*
* \details Represents error that occur on the client side.
* \details Encapsulates errors that occur on the client side.
*/
enum class error : int {
/** The packet is malformed. */
/** The packet is malformed */
malformed_packet = 100,
/** The packet has exceeded the Maximum Packet Size the Server is willing to accept. */
/** The packet has exceeded the Maximum Packet Size the Server is willing to accept */
packet_too_large,
/** The Client's session does not exist or it has expired. */
/** The Client's session does not exist or it has expired */
session_expired,
/** There are no more available Packet Identifiers to use. */
/** There are no more available Packet Identifiers to use */
pid_overrun,
/** The Topic is invalid and does not conform to the specification. */
/** The Topic is invalid and does not conform to the specification */
invalid_topic,
// publish
/** The Server does not support the specified \ref qos_e. */
/** The Server does not support the specified \ref qos_e */
qos_not_supported,
/** The Server does not support retained messages. */
/** The Server does not support retained messages */
retain_not_available,
/** The Client attempted to send a Topic Alias that is greater than Topic Alias Maximum. */
/** The Client attempted to send a Topic Alias that is greater than Topic Alias Maximum */
topic_alias_maximum_reached,
// subscribe
/** The Server does not support Wildcard Subscriptions. */
/** The Server does not support Wildcard Subscriptions */
wildcard_subscription_not_available,
/** The Server does not support this Subscription Identifier. */
/** The Server does not support this Subscription Identifier */
subscription_identifier_not_available,
/** The Server does not support Shared Subscriptions. */
/** The Server does not support Shared Subscriptions */
shared_subscription_not_available
};
@@ -93,40 +90,35 @@ enum class error : int {
inline std::string client_error_to_string(error err) {
switch (err) {
case error::malformed_packet:
return "The packet is malformed.";
return "The packet is malformed";
case error::packet_too_large:
return "The packet has exceeded the Maximum Packet Size "
"the Server is willing to accept.";
"the Server is willing to accept";
case error::session_expired:
return "The Client's session does not exist or it has expired.";
return "The Client's session does not exist or it has expired";
case error::pid_overrun:
return "There are no more available Packet Identifiers to use.";
return "There are no more available Packet Identifiers to use";
case error::invalid_topic:
return "The Topic is invalid and "
"does not conform to the specification.";
"does not conform to the specification";
case error::qos_not_supported:
return "The Server does not support the specified QoS.";
return "The Server does not support the specified QoS";
case error::retain_not_available:
return "The Server does not support retained messages.";
return "The Server does not support retained messages";
case error::topic_alias_maximum_reached:
return "The Client attempted to send a Topic Alias "
"that is greater than Topic Alias Maximum.";
"that is greater than Topic Alias Maximum";
case error::wildcard_subscription_not_available:
return "The Server does not support Wildcard Subscriptions.";
return "The Server does not support Wildcard Subscriptions";
case error::subscription_identifier_not_available:
return "The Server does not support this Subscription Identifier.";
return "The Server does not support this Subscription Identifier";
case error::shared_subscription_not_available:
return "The Server does not support Shared Subscriptions.";
return "The Server does not support Shared Subscriptions";
default:
return "Unknown client error.";
return "Unknown client error";
}
}
inline std::ostream& operator<<(std::ostream& os, const client::error& err) {
os << client_error_to_string(err);
return os;
}
struct client_ec_category : public boost::system::error_category {
const char* name() const noexcept override { return "mqtt_client_error"; }
std::string message(int ev) const noexcept override {
@@ -145,493 +137,193 @@ inline boost::system::error_code make_error_code(error r) {
return { static_cast<int>(r), get_error_code_category() };
}
inline std::ostream& operator<<(std::ostream& os, const error& err) {
os << get_error_code_category().name() << ":" << static_cast<int>(err);
return os;
}
} // end namespace client
/// \cond internal
namespace reason_codes {
enum class category : uint8_t {
none,
connack, puback, pubrec,
pubrel, pubcomp, suback,
unsuback, auth, disconnect
};
} // end namespace reason_codes
/// \endcond
namespace connection {
/**
* \brief A class holding Reason Code values originating from Control Packets.
*
* \details A Reason Code is a one byte unsigned value that indicates the result of an operation.
* Reason Codes less than 0x80 indicate successful completion of an operation.
* The normal Reason Code for success is 0.
* Reason Code values of 0x80 or greater indicate failure.
* The \__CONNACK\__, \__PUBACK\__, \__PUBREC\__, \__PUBREL\__, \__PUBCOMP\__, \__DISCONNECT\__
* and \__AUTH\__ Control Packets have a single Reason Code as part of the Variable Header.
* The \__SUBACK\__ and \__UNSUBACK\__ packets contain a list of one or more Reason Codes in the Payload.
*
* \see See \__REASON_CODES\__ for a complete list of all possible instances of this class.
*/
class reason_code {
uint8_t _code;
reason_codes::category _category { reason_codes::category::none };
public:
/// \cond INTERNAL
constexpr reason_code() : _code(0xff) {}
* \brief Defines error codes related to MQTT client connection.
*
* \details Encapsulates errors encountered during the process of establishing a connection.
*/
enum class error : int {
/** Connection has been successfully established */
success = 0,
constexpr reason_code(uint8_t code, reason_codes::category cat)
: _code(code), _category(cat)
{}
/** An error occured during TLS handshake */
tls_handshake_error = 1,
constexpr explicit reason_code(uint8_t code) : _code(code) {}
/// \endcond
/** An error occured during WebSocket handshake */
websocket_handshake_error = 2,
/// Copy constructor.
reason_code(const reason_code&) = default;
// CONNACK
/** The Server does not wish to reveal the reason for the failure */
unspecified_error = 128,
/// Move constructor.
reason_code(reason_code&&) = default;
/** Data within the CONNECT packet could not be correctly parsed */
malformed_packet = 129,
/// Copy assignment operator.
reason_code& operator=(const reason_code&) = default;
/** Data in the CONNECT packet does not conform to this specification */
protocol_error = 130,
/// Move assignment operator.
reason_code& operator=(reason_code&&) = default;
/** The CONNECT is valid but is not accepted by this Server */
implementation_specific_error = 131,
/**
* \brief Indication if the object holds a Reason Code indicating an error.
*
* \details Any Reason Code holding a value equal or greater than 0x80.
*/
explicit operator bool() const noexcept {
return _code >= 0x80;
/** The Server does not support the version of the MQTT protocol requested by the Client */
unsupported_protocol_version = 132,
/** The Client Identifier is a valid string but is not allowed by the Server */
client_identifier_not_valid = 133,
/** The Server does not accept the User Name or Password specified by the Client */
bad_username_or_password = 134,
/** The Client is not authorized to connect */
not_authorized = 135,
/** The MQTT Server is not available */
server_unavailable = 136,
/** The Server is busy, try again later */
server_busy = 137,
/** This Client has been banned by administrative action */
banned = 138,
/** The authentication method is not supported or does not match the one currently in use. */
bad_authentication_method = 140,
/** The Will Topic Name is not malformed, but is not accepted by this Server */
topic_name_invalid = 144,
/** The CONNECT packet exceeded the maximum permissible size */
packet_too_large = 149,
/** An implementation or administrative imposed limit has been exceeded */
quota_exceeded = 151,
/** The Will Payload does not match the specified Payload Format Indicator */
payload_format_invalid = 153,
/** The Server does not support retained messages, and Will Retain was set to 1 */
retain_not_supported = 154,
/** The Server does not support the QoS set in Will QoS */
qos_not_supported = 155,
/** The Client should temporarily use another server */
use_another_server = 156,
/** The Client should permanently use another server */
server_moved = 157,
/** The connection rate limit has been exceeded */
connection_rate_exceeded = 159
};
inline std::string connection_error_to_string(error err) {
switch (err) {
case error::success:
return "Connection has been successfully established";
case error::tls_handshake_error:
return "Connection failed: An error occured during TLS handshake";
case error::websocket_handshake_error:
return "Connection failed: An error occured during WebSocket handshake";
case error::unspecified_error:
return "Connection failed: The Server does not wish to reveal "
"the reason for the failure or none of the codes apply";
case error::malformed_packet:
return "Connection failed: Data within the CONNECT packet "
"could not be correctly parsed";
case error::protocol_error:
return "Connection failed: Data in the CONNECT packet does"
" not conform to this specification";
case error::implementation_specific_error:
return "Connection failed : The CONNECT is valid but "
"is not accepted by this Server";
case error::unsupported_protocol_version:
return "Connection failed: The Server does not support the "
"version of the MQTT protocol requested by the Client";
case error::client_identifier_not_valid:
return "Connection failed: The Client Identifier is a valid "
"string but is not allowed by the Server";
case error::bad_username_or_password:
return "Connection failed: The Server does not accept the User Name "
" or Password specified by the Client";
case error::not_authorized:
return "Connection failed: The Client is not authorized to connect";
case error::server_unavailable:
return "Connection failed: The MQTT Server is not available";
case error::server_busy:
return "Connection failed: The Server is busy, try again later";
case error::banned:
return "Connection failed: This Client has been banned "
"by administrative action, contact the server administrator";
case error::bad_authentication_method:
return "Connection failed: The authentication method is not supported "
"or does not match the authentication method currently in use";
case error::topic_name_invalid:
return "Connection failed: The Will Topic Name is not malformed, "
"but is not accepted by this Server";
case error::packet_too_large:
return "Connection failed: The CONNECT packet exceeded the maximum "
" permissible size";
case error::quota_exceeded:
return "Connection failed: An implementation or administrative "
"imposed limit has been exceeded";
case error::payload_format_invalid:
return "Connection failed: The Will Payload does not match "
"the specified Payload Format Indicator";
case error::retain_not_supported:
return "Connection failed: The Server does not support "
"retained messages, and Will Retain was set to 1";
case error::qos_not_supported:
return "Connection failed: The Server does not support "
"the QoS set in Will QoS";
case error::use_another_server:
return "Connection failed: The Client should temporarily "
"use another server";
case error::server_moved:
return "Connection failed: The Client should permanently "
"use another server";
case error::connection_rate_exceeded:
return "Connection failed: The connection rate limit "
"has been exceeded";
default:
return "Unknown connection error";
}
}
/**
* \brief Returns the byte value of the Reason Code.
*/
constexpr uint8_t value() const noexcept {
return _code;
}
/// Insertion operator.
friend std::ostream& operator<<(std::ostream& os, const reason_code& rc) {
os << rc.message();
return os;
}
/// Operator less than.
friend bool operator<(const reason_code& lhs, const reason_code& rhs) {
return lhs._code < rhs._code;
}
/// Equality operator.
friend bool operator==(const reason_code& lhs, const reason_code& rhs) {
return lhs._code == rhs._code && lhs._category == rhs._category;
}
/**
* \brief Returns a message describing the meaning behind the Reason Code.
*/
std::string message() const {
switch (_code) {
case 0x00:
if (_category == reason_codes::category::suback)
return "The subscription is accepted with maximum QoS sent at 0";
if (_category == reason_codes::category::disconnect)
return "Close the connection normally. Do not send the Will Message";
return "The operation completed successfully";
case 0x01:
return "The subscription is accepted with maximum QoS sent at 1";
case 0x02:
return "The subscription is accepted with maximum QoS sent at 2";
case 0x04:
return "The Client wishes to disconnect but requires"
"that the Server also publishes its Will Message";
case 0x10:
return "The message is accepted but there are no subscribers";
case 0x11:
return "No matching Topic Filter is being used by the Client.";
case 0x18:
return "Continue the authentication with another step";
case 0x19:
return "Initiate a re-authentication";
case 0x80:
return "The Server does not wish to reveal the reason for the"
"failure, or none of the other Reason Codes apply";
case 0x81:
return "Data within the packet could not be correctly parsed";
case 0x82:
return "Data in the packet does not conform to this specification";
case 0x83:
return "The packet is valid but not accepted by this Server";
case 0x84:
return "The Server does not support the requested "
"version of the MQTT protocol";
case 0x85:
return "The Client ID is valid but not allowed by this Server";
case 0x86:
return "The Server does not accept the User Name or Password provided";
case 0x87:
return "The request is not authorized";
case 0x88:
return "The MQTT Server is not available";
case 0x89:
return "The MQTT Server is busy, try again later";
case 0x8a:
return "The Client has been banned by administrative action";
case 0x8b:
return "The Server is shutting down";
case 0x8c:
return "The authentication method is not supported or "
"does not match the method currently in use";
case 0x8d:
return "No packet has been received for 1.5 times the Keepalive time";
case 0x8e:
return "Another Connection using the same ClientID has connected "
"causing this Connection to be closed";
case 0x8f:
return "The Topic Filer is not malformed, but it is not accepted";
case 0x90:
return "The Topic Name is not malformed, but it is not accepted";
case 0x91:
return "The Packet Identifier is already in use";
case 0x92:
return "The Packet Identifier is not known";
case 0x93:
return "The Client or Server has received more than Receive "
"Maximum publication for which it has not sent PUBACK or PUBCOMP";
case 0x94:
return "The Client or Server received a PUBLISH packet containing "
"a Topic Alias greater than the Maximum Topic Alias";
case 0x95:
return "The packet exceeded the maximum permissible size";
case 0x96:
return "The received data rate is too high";
case 0x97:
return "An implementation or administrative imposed limit has been exceeded";
case 0x98:
return "The Connection is closed due to an administrative action";
case 0x99:
return "The Payload does not match the specified Payload Format Indicator";
case 0x9a:
return "The Server does not support retained messages";
case 0x9b:
return "The Server does not support the QoS the Client specified or "
"it is greater than the Maximum QoS specified";
case 0x9c:
return "The Client should temporarily use another server";
case 0x9d:
return "The Client should permanently use another server";
case 0x9e:
return "The Server does not support Shared Subscriptions for this Client";
case 0x9f:
return "The connection rate limit has been exceeded";
case 0xa0:
return "The maximum connection time authorized for this "
"connection has been exceeded";
case 0xa1:
return "The Server does not support Subscription Identifiers";
case 0xa2:
return "The Server does not support Wildcard Subscriptions";
case 0xff:
return "No reason code";
default:
return "Invalid reason code";
}
struct connection_ec_category : public boost::system::error_category {
const char* name() const noexcept override { return "mqtt_connection_error"; }
std::string message(int ev) const noexcept override {
return connection_error_to_string(static_cast<error>(ev));
}
};
namespace reason_codes {
/** No Reason Code. A \ref client::error occurred.*/
constexpr reason_code empty {};
/** The operation completed successfully. */
constexpr reason_code success { 0x00 };
/** Close the connection normally. Do not send the Will Message. */
constexpr reason_code normal_disconnection { 0x00, category::disconnect };
/** The subscription is accepted with maximum QoS sent at 0. */
constexpr reason_code granted_qos_0 { 0x00, category::suback };
/** The subscription is accepted with maximum QoS sent at 1. */
constexpr reason_code granted_qos_1 { 0x01 };
/** The subscription is accepted with maximum QoS sent at 2 */
constexpr reason_code granted_qos_2 { 0x02 };
/** The Client wishes to disconnect but requires that
the Server also publishes its Will Message. */
constexpr reason_code disconnect_with_will_message { 0x04 };
/** The message is accepted but there are no subscribers. */
constexpr reason_code no_matching_subscribers { 0x10 };
/** No matching Topic Filter is being used by the Client. */
constexpr reason_code no_subscription_existed { 0x11 };
/** Continue the authentication with another step. */
constexpr reason_code continue_authentication { 0x18 };
/** Initiate a re-authentication. */
constexpr reason_code reauthenticate { 0x19 };
/** The Server does not wish to reveal the reason for the
failure, or none of the other Reason Codes apply. */
constexpr reason_code unspecified_error { 0x80 };
/** Data within the packet could not be correctly parsed. */
constexpr reason_code malformed_packet { 0x81 };
/** Data in the packet does not conform to this specification. */
constexpr reason_code protocol_error { 0x82 };
/** The packet is valid but not accepted by this Server. */
constexpr reason_code implementation_specific_error { 0x83 };
/** The Server does not support the requested version of the MQTT protocol. */
constexpr reason_code unsupported_protocol_version { 0x84 };
/** The Client ID is valid but not allowed by this Server. */
constexpr reason_code client_id_not_valid { 0x85 };
/** The Server does not accept the User Name or Password provided. */
constexpr reason_code bad_username_or_password { 0x86 };
/** The request is not authorized. */
constexpr reason_code not_authorized { 0x87 };
/** The MQTT Server is not available. */
constexpr reason_code server_unavailable { 0x88 };
/** The MQTT Server is busy, try again later. */
constexpr reason_code server_busy { 0x89 };
/** The Client has been banned by administrative action. */
constexpr reason_code banned { 0x8a };
/** The Server is shutting down. */
constexpr reason_code server_shutting_down { 0x8b };
/** The authentication method is not supported or
does not match the method currently in use. */
constexpr reason_code bad_authentication_method { 0x8c };
/** No packet has been received for 1.5 times the Keepalive time. */
constexpr reason_code keep_alive_timeout { 0x8d };
/** Another Connection using the same ClientID has connected
causing this Connection to be closed. */
constexpr reason_code session_taken_over { 0x8e };
/** The Topic Filter is not malformed, but it is not accepted. */
constexpr reason_code topic_filter_invalid { 0x8f };
/** The Topic Name is not malformed, but it is not accepted. */
constexpr reason_code topic_name_invalid { 0x90 };
/** The Packet Identifier is already in use. */
constexpr reason_code packet_id_in_use { 0x91 };
/** The Packet Identifier is not known. */
constexpr reason_code packet_id_not_found { 0x92 };
/** The Client or Server has received more than Receive
Maximum publication for which it has not sent PUBACK or PUBCOMP. */
constexpr reason_code receive_maximum_exceeded { 0x93 };
/** The Client or Server received a PUBLISH packet containing
a Topic Alias greater than the Maximum Topic Alias. */
constexpr reason_code topic_alias_invalid { 0x94 };
/** The packet exceeded the maximum permissible size. */
constexpr reason_code packet_too_large { 0x95 };
/** The received data rate is too high. */
constexpr reason_code message_rate_too_high { 0x96 };
/** An implementation or administrative imposed limit has been exceeded. */
constexpr reason_code quota_exceeded { 0x97 };
/** The Connection is closed due to an administrative action. */
constexpr reason_code administrative_action { 0x98 };
/** The Payload does not match the specified Payload Format Indicator. */
constexpr reason_code payload_format_invalid { 0x99 };
/** The Server does not support retained messages. */
constexpr reason_code retain_not_supported { 0x9a };
/** The Server does not support the QoS the Client specified or
it is greater than the Maximum QoS specified. */
constexpr reason_code qos_not_supported { 0x9b };
/** The Client should temporarily use another server. */
constexpr reason_code use_another_server { 0x9c };
/** The Client should permanently use another server. */
constexpr reason_code server_moved { 0x9d };
/** The Server does not support Shared Subscriptions for this Client. */
constexpr reason_code shared_subscriptions_not_supported { 0x9e };
/** The connection rate limit has been exceeded. */
constexpr reason_code connection_rate_exceeded { 0x9f };
/** The maximum connection time authorized for this
connection has been exceeded. */
constexpr reason_code maximum_connect_time { 0xa0 };
/** The Server does not support Subscription Identifiers. */
constexpr reason_code subscription_ids_not_supported { 0xa1 };
/** The Server does not support Wildcard Subscriptions. */
constexpr reason_code wildcard_subscriptions_not_supported { 0xa2 };
namespace detail {
template <
category cat,
std::enable_if_t<cat == category::connack, bool> = true
>
std::pair<reason_code*, size_t> valid_codes() {
static reason_code valid_codes[] = {
success, unspecified_error, malformed_packet,
protocol_error, implementation_specific_error,
unsupported_protocol_version, client_id_not_valid,
bad_username_or_password, not_authorized,
server_unavailable, server_busy, banned,
bad_authentication_method, topic_name_invalid,
packet_too_large, quota_exceeded,
payload_format_invalid, retain_not_supported,
qos_not_supported, use_another_server,
server_moved, connection_rate_exceeded
};
static size_t len = sizeof(valid_codes) / sizeof(reason_code);
return std::make_pair(valid_codes, len);
/// Returns the error category associated with \ref connection::error.
inline const connection_ec_category& get_error_code_category() {
static connection_ec_category cat;
return cat;
}
template <
category cat,
std::enable_if_t<cat == category::auth, bool> = true
>
std::pair<reason_code*, size_t> valid_codes() {
static reason_code valid_codes[] = {
success, continue_authentication, reauthenticate
};
static size_t len = sizeof(valid_codes) / sizeof(reason_code);
return std::make_pair(valid_codes, len);
/// Creates an \ref error_code from a \ref connection::error.
inline boost::system::error_code make_error_code(error r) {
return { static_cast<int>(r), get_error_code_category() };
}
template <
category cat,
std::enable_if_t<
cat == category::puback || cat == category::pubrec, bool
> = true
>
std::pair<reason_code*, size_t> valid_codes() {
static reason_code valid_codes[] = {
success, no_matching_subscribers, unspecified_error,
implementation_specific_error, not_authorized,
topic_name_invalid, packet_id_in_use,
quota_exceeded, payload_format_invalid
};
static size_t len = sizeof(valid_codes) / sizeof(reason_code);
return std::make_pair(valid_codes, len);
inline std::ostream& operator<<(std::ostream& os, const error& err) {
os << get_error_code_category().name() << ":" << static_cast<int>(err);
return os;
}
template <
category cat,
std::enable_if_t<
cat == category::pubrel || cat == category::pubcomp, bool
> = true
>
std::pair<reason_code*, size_t> valid_codes() {
static reason_code valid_codes[] = {
success, packet_id_not_found
};
static size_t len = sizeof(valid_codes) / sizeof(reason_code);
return std::make_pair(valid_codes, len);
}
template <
category cat,
std::enable_if_t<cat == category::suback, bool> = true
>
std::pair<reason_code*, size_t> valid_codes() {
static reason_code valid_codes[] = {
granted_qos_0, granted_qos_1, granted_qos_2,
unspecified_error, implementation_specific_error,
not_authorized, topic_filter_invalid,
packet_id_in_use, quota_exceeded,
shared_subscriptions_not_supported,
subscription_ids_not_supported,
wildcard_subscriptions_not_supported
};
static size_t len = sizeof(valid_codes) / sizeof(reason_code);
return std::make_pair(valid_codes, len);
}
template <
category cat,
std::enable_if_t<cat == category::unsuback, bool> = true
>
std::pair<reason_code*, size_t> valid_codes() {
static reason_code valid_codes[] = {
success, no_subscription_existed,
unspecified_error, implementation_specific_error,
not_authorized, topic_filter_invalid,
packet_id_in_use
};
static size_t len = sizeof(valid_codes) / sizeof(reason_code);
return std::make_pair(valid_codes, len);
}
template <
category cat,
std::enable_if_t<cat == category::disconnect, bool> = true
>
std::pair<reason_code*, size_t> valid_codes() {
static reason_code valid_codes[] = {
normal_disconnection, unspecified_error,
malformed_packet, protocol_error,
implementation_specific_error, not_authorized,
server_busy, server_shutting_down,
keep_alive_timeout, session_taken_over,
topic_filter_invalid, topic_name_invalid,
receive_maximum_exceeded, topic_alias_invalid,
packet_too_large, message_rate_too_high,
quota_exceeded, administrative_action,
payload_format_invalid, retain_not_supported,
qos_not_supported, use_another_server,
server_moved, shared_subscriptions_not_supported,
connection_rate_exceeded, maximum_connect_time,
subscription_ids_not_supported,
wildcard_subscriptions_not_supported
};
static size_t len = sizeof(valid_codes) / sizeof(reason_code);
return std::make_pair(valid_codes, len);
}
} // end namespace detail
} // end namespace reason_codes
template <reason_codes::category cat>
std::optional<reason_code> to_reason_code(uint8_t code) {
auto [ptr, len] = reason_codes::detail::valid_codes<cat>();
auto it = std::lower_bound(ptr, ptr + len, reason_code(code));
if (it->value() == code)
return *it;
return std::nullopt;
}
} // end namespace connection
} // end namespace async_mqtt5
@@ -640,7 +332,36 @@ namespace boost::system {
template <>
struct is_error_code_enum <async_mqtt5::client::error> : std::true_type {};
template <>
struct is_error_code_enum <async_mqtt5::connection::error> : std::true_type {};
} // end namespace boost::system
namespace async_mqtt5 {
inline bool is_not_recoverable(boost::system::error_code ec) {
using namespace connection;
return ec == boost::asio::error::no_recovery ||
ec == error::tls_handshake_error ||
ec == error::websocket_handshake_error ||
ec == error::malformed_packet ||
ec == error::implementation_specific_error ||
ec == error::unsupported_protocol_version ||
ec == error::client_identifier_not_valid ||
ec == error::bad_username_or_password ||
ec == error::not_authorized ||
ec == error::banned ||
ec == error::bad_authentication_method ||
ec == error::topic_name_invalid ||
ec == error::packet_too_large ||
ec == error::quota_exceeded ||
ec == error::payload_format_invalid ||
ec == error::retain_not_supported ||
ec == error::qos_not_supported ||
ec == error::use_another_server ||
ec == error::server_moved;
}
} // end namespace async_mqtt5
#endif // !ASYNC_MQTT5_ERROR_HPP