refactor: merge dnsx and errorsx into netxlite (#517)
When preparing a tutorial for netxlite, I figured it is easier to tell people "hey, this is the package you should use for all low-level networking stuff" rather than introducing people to a set of packages working together where some piece of functionality is here and some other piece is there. Part of https://github.com/ooni/probe/issues/1591
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Simone Basso
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169 changed files with 575 additions and 671 deletions
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// Code generated by go generate; DO NOT EDIT.
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// Generated: 2021-09-27 15:57:58.500515 +0200 CEST m=+0.304199251
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package errorsx
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//go:generate go run ./internal/generrno/
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import (
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"errors"
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"syscall"
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)
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// This enumeration lists the failures defined at
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// https://github.com/ooni/spec/blob/master/data-formats/df-007-errors.md
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const (
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//
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// System errors
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//
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FailureOperationCanceled = "operation_canceled"
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FailureConnectionRefused = "connection_refused"
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FailureConnectionReset = "connection_reset"
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FailureHostUnreachable = "host_unreachable"
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FailureTimedOut = "timed_out"
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FailureAddressFamilyNotSupported = "address_family_not_supported"
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FailureAddressInUse = "address_in_use"
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FailureAddressNotAvailable = "address_not_available"
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FailureAlreadyConnected = "already_connected"
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FailureBadAddress = "bad_address"
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FailureBadFileDescriptor = "bad_file_descriptor"
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FailureConnectionAborted = "connection_aborted"
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FailureConnectionAlreadyInProgress = "connection_already_in_progress"
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FailureDestinationAddressRequired = "destination_address_required"
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FailureInterrupted = "interrupted"
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FailureInvalidArgument = "invalid_argument"
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FailureMessageSize = "message_size"
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FailureNetworkDown = "network_down"
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FailureNetworkReset = "network_reset"
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FailureNetworkUnreachable = "network_unreachable"
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FailureNoBufferSpace = "no_buffer_space"
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FailureNoProtocolOption = "no_protocol_option"
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FailureNotASocket = "not_a_socket"
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FailureNotConnected = "not_connected"
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FailureOperationWouldBlock = "operation_would_block"
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FailurePermissionDenied = "permission_denied"
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FailureProtocolNotSupported = "protocol_not_supported"
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FailureWrongProtocolType = "wrong_protocol_type"
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//
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// Library errors
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//
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FailureDNSBogonError = "dns_bogon_error"
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FailureDNSNXDOMAINError = "dns_nxdomain_error"
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FailureDNSRefusedError = "dns_refused_error"
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FailureDNSServerMisbehaving = "dns_server_misbehaving"
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FailureDNSNoAnswer = "dns_no_answer"
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FailureEOFError = "eof_error"
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FailureGenericTimeoutError = "generic_timeout_error"
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FailureQUICIncompatibleVersion = "quic_incompatible_version"
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FailureSSLFailedHandshake = "ssl_failed_handshake"
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FailureSSLInvalidHostname = "ssl_invalid_hostname"
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FailureSSLUnknownAuthority = "ssl_unknown_authority"
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FailureSSLInvalidCertificate = "ssl_invalid_certificate"
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FailureJSONParseError = "json_parse_error"
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FailureConnectionAlreadyClosed = "connection_already_closed"
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)
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// failureMap lists all failures so we can match them
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// when they are wrapped by quic.TransportError.
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var failuresMap = map[string]string{
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"operation_canceled": "operation_canceled",
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"connection_refused": "connection_refused",
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"connection_reset": "connection_reset",
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"host_unreachable": "host_unreachable",
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"timed_out": "timed_out",
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"address_family_not_supported": "address_family_not_supported",
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"address_in_use": "address_in_use",
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"address_not_available": "address_not_available",
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"already_connected": "already_connected",
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"bad_address": "bad_address",
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"bad_file_descriptor": "bad_file_descriptor",
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"connection_aborted": "connection_aborted",
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"connection_already_in_progress": "connection_already_in_progress",
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"destination_address_required": "destination_address_required",
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"interrupted": "interrupted",
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"invalid_argument": "invalid_argument",
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"message_size": "message_size",
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"network_down": "network_down",
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"network_reset": "network_reset",
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"network_unreachable": "network_unreachable",
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"no_buffer_space": "no_buffer_space",
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"no_protocol_option": "no_protocol_option",
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"not_a_socket": "not_a_socket",
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"not_connected": "not_connected",
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"operation_would_block": "operation_would_block",
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"permission_denied": "permission_denied",
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"protocol_not_supported": "protocol_not_supported",
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"wrong_protocol_type": "wrong_protocol_type",
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"dns_bogon_error": "dns_bogon_error",
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"dns_nxdomain_error": "dns_nxdomain_error",
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"dns_refused_error": "dns_refused_error",
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"dns_server_misbehaving": "dns_server_misbehaving",
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"dns_no_answer": "dns_no_answer",
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"eof_error": "eof_error",
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"generic_timeout_error": "generic_timeout_error",
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"quic_incompatible_version": "quic_incompatible_version",
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"ssl_failed_handshake": "ssl_failed_handshake",
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"ssl_invalid_hostname": "ssl_invalid_hostname",
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"ssl_unknown_authority": "ssl_unknown_authority",
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"ssl_invalid_certificate": "ssl_invalid_certificate",
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"json_parse_error": "json_parse_error",
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"connection_already_closed": "connection_already_closed",
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}
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// classifySyscallError converts a syscall error to the
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// proper OONI error. Returns the OONI error string
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// on success, an empty string otherwise.
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func classifySyscallError(err error) string {
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var errno syscall.Errno
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if !errors.As(err, &errno) {
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return ""
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}
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switch errno {
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case ECANCELED:
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return FailureOperationCanceled
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case ECONNREFUSED:
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return FailureConnectionRefused
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case ECONNRESET:
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return FailureConnectionReset
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case EHOSTUNREACH:
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return FailureHostUnreachable
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case ETIMEDOUT:
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return FailureTimedOut
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case EAFNOSUPPORT:
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return FailureAddressFamilyNotSupported
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case EADDRINUSE:
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return FailureAddressInUse
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case EADDRNOTAVAIL:
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return FailureAddressNotAvailable
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case EISCONN:
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return FailureAlreadyConnected
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case EFAULT:
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return FailureBadAddress
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case EBADF:
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return FailureBadFileDescriptor
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case ECONNABORTED:
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return FailureConnectionAborted
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case EALREADY:
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return FailureConnectionAlreadyInProgress
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case EDESTADDRREQ:
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return FailureDestinationAddressRequired
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case EINTR:
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return FailureInterrupted
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case EINVAL:
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return FailureInvalidArgument
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case EMSGSIZE:
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return FailureMessageSize
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case ENETDOWN:
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return FailureNetworkDown
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case ENETRESET:
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return FailureNetworkReset
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case ENETUNREACH:
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return FailureNetworkUnreachable
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case ENOBUFS:
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return FailureNoBufferSpace
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case ENOPROTOOPT:
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return FailureNoProtocolOption
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case ENOTSOCK:
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return FailureNotASocket
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case ENOTCONN:
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return FailureNotConnected
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case EWOULDBLOCK:
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return FailureOperationWouldBlock
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case EACCES:
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return FailurePermissionDenied
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case EPROTONOSUPPORT:
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return FailureProtocolNotSupported
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case EPROTOTYPE:
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return FailureWrongProtocolType
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}
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return ""
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}
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