diff options
Diffstat (limited to 'vendor/github.com/miekg/dns/edns.go')
| -rw-r--r-- | vendor/github.com/miekg/dns/edns.go | 39 |
1 files changed, 16 insertions, 23 deletions
diff --git a/vendor/github.com/miekg/dns/edns.go b/vendor/github.com/miekg/dns/edns.go index a6a36bdf2..6f9d2ea39 100644 --- a/vendor/github.com/miekg/dns/edns.go +++ b/vendor/github.com/miekg/dns/edns.go @@ -13,19 +13,18 @@ import ( const ( EDNS0LLQ = 0x1 // long lived queries: http://tools.ietf.org/html/draft-sekar-dns-llq-01 EDNS0UL = 0x2 // update lease draft: http://files.dns-sd.org/draft-sekar-dns-ul.txt - EDNS0NSID = 0x3 // nsid (RFC5001) + EDNS0NSID = 0x3 // nsid (See RFC 5001) EDNS0DAU = 0x5 // DNSSEC Algorithm Understood EDNS0DHU = 0x6 // DS Hash Understood EDNS0N3U = 0x7 // NSEC3 Hash Understood - EDNS0SUBNET = 0x8 // client-subnet (RFC6891) + EDNS0SUBNET = 0x8 // client-subnet (See RFC 7871) EDNS0EXPIRE = 0x9 // EDNS0 expire EDNS0COOKIE = 0xa // EDNS0 Cookie - EDNS0TCPKEEPALIVE = 0xb // EDNS0 tcp keep alive (RFC7828) - EDNS0PADDING = 0xc // EDNS0 padding (RFC7830) - EDNS0SUBNETDRAFT = 0x50fa // Don't use! Use EDNS0SUBNET - EDNS0LOCALSTART = 0xFDE9 // Beginning of range reserved for local/experimental use (RFC6891) - EDNS0LOCALEND = 0xFFFE // End of range reserved for local/experimental use (RFC6891) - _DO = 1 << 15 // dnssec ok + EDNS0TCPKEEPALIVE = 0xb // EDNS0 tcp keep alive (See RFC 7828) + EDNS0PADDING = 0xc // EDNS0 padding (See RFC 7830) + EDNS0LOCALSTART = 0xFDE9 // Beginning of range reserved for local/experimental use (See RFC 6891) + EDNS0LOCALEND = 0xFFFE // End of range reserved for local/experimental use (See RFC 6891) + _DO = 1 << 15 // DNSSEC OK ) // OPT is the EDNS0 RR appended to messages to convey extra (meta) information. @@ -58,9 +57,6 @@ func (rr *OPT) String() string { } case *EDNS0_SUBNET: s += "\n; SUBNET: " + o.String() - if o.(*EDNS0_SUBNET).DraftOption { - s += " (draft)" - } case *EDNS0_COOKIE: s += "\n; COOKIE: " + o.String() case *EDNS0_UL: @@ -188,7 +184,7 @@ func (e *EDNS0_NSID) unpack(b []byte) error { e.Nsid = hex.EncodeToString(b); re func (e *EDNS0_NSID) String() string { return string(e.Nsid) } // EDNS0_SUBNET is the subnet option that is used to give the remote nameserver -// an idea of where the client lives. It can then give back a different +// an idea of where the client lives. See RFC 7871. It can then give back a different // answer depending on the location or network topology. // Basic use pattern for creating an subnet option: // @@ -204,26 +200,19 @@ func (e *EDNS0_NSID) String() string { return string(e.Nsid) } // // e.Address = net.ParseIP("2001:7b8:32a::2") // for IPV6 // o.Option = append(o.Option, e) // -// Note: the spec (draft-ietf-dnsop-edns-client-subnet-00) has some insane logic -// for which netmask applies to the address. This code will parse all the -// available bits when unpacking (up to optlen). When packing it will apply -// SourceNetmask. If you need more advanced logic, patches welcome and good luck. +// This code will parse all the available bits when unpacking (up to optlen). +// When packing it will apply SourceNetmask. If you need more advanced logic, +// patches welcome and good luck. type EDNS0_SUBNET struct { Code uint16 // Always EDNS0SUBNET Family uint16 // 1 for IP, 2 for IP6 SourceNetmask uint8 SourceScope uint8 Address net.IP - DraftOption bool // Set to true if using the old (0x50fa) option code } // Option implements the EDNS0 interface. -func (e *EDNS0_SUBNET) Option() uint16 { - if e.DraftOption { - return EDNS0SUBNETDRAFT - } - return EDNS0SUBNET -} +func (e *EDNS0_SUBNET) Option() uint16 { return EDNS0SUBNET } func (e *EDNS0_SUBNET) pack() ([]byte, error) { b := make([]byte, 4) @@ -431,6 +420,7 @@ func (e *EDNS0_LLQ) String() string { return s } +// EDNS0_DUA implements the EDNS0 "DNSSEC Algorithm Understood" option. See RFC 6975. type EDNS0_DAU struct { Code uint16 // Always EDNS0DAU AlgCode []uint8 @@ -453,6 +443,7 @@ func (e *EDNS0_DAU) String() string { return s } +// EDNS0_DHU implements the EDNS0 "DS Hash Understood" option. See RFC 6975. type EDNS0_DHU struct { Code uint16 // Always EDNS0DHU AlgCode []uint8 @@ -475,6 +466,7 @@ func (e *EDNS0_DHU) String() string { return s } +// EDNS0_N3U implements the EDNS0 "NSEC3 Hash Understood" option. See RFC 6975. type EDNS0_N3U struct { Code uint16 // Always EDNS0N3U AlgCode []uint8 @@ -498,6 +490,7 @@ func (e *EDNS0_N3U) String() string { return s } +// EDNS0_EXPIRE implementes the EDNS0 option as described in RFC 7314. type EDNS0_EXPIRE struct { Code uint16 // Always EDNS0EXPIRE Expire uint32 |