diff options
Diffstat (limited to 'pkg/tcpip/tcpip.go')
| -rw-r--r-- | pkg/tcpip/tcpip.go | 188 |
1 files changed, 101 insertions, 87 deletions
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go index f9e83dd1c..5c9225b5d 100644 --- a/pkg/tcpip/tcpip.go +++ b/pkg/tcpip/tcpip.go @@ -247,6 +247,16 @@ func (a Address) WithPrefix() AddressWithPrefix { } } +// Unspecified returns true if the address is unspecified. +func (a Address) Unspecified() bool { + for _, b := range a { + if b != 0 { + return false + } + } + return true +} + // AddressMask is a bitmask for an address. type AddressMask string @@ -593,10 +603,6 @@ type Endpoint interface { // SetSockOpt sets a socket option. SetSockOpt(opt SettableSocketOption) *Error - // SetSockOptBool sets a socket option, for simple cases where a value - // has the bool type. - SetSockOptBool(opt SockOptBool, v bool) *Error - // SetSockOptInt sets a socket option, for simple cases where a value // has the int type. SetSockOptInt(opt SockOptInt, v int) *Error @@ -604,10 +610,6 @@ type Endpoint interface { // GetSockOpt gets a socket option. GetSockOpt(opt GettableSocketOption) *Error - // GetSockOptBool gets a socket option for simple cases where a return - // value has the bool type. - GetSockOptBool(SockOptBool) (bool, *Error) - // GetSockOptInt gets a socket option for simple cases where a return // value has the int type. GetSockOptInt(SockOptInt) (int, *Error) @@ -694,79 +696,6 @@ type WriteOptions struct { Atomic bool } -// SockOptBool represents socket options which values have the bool type. -type SockOptBool int - -const ( - // CorkOption is used by SetSockOptBool/GetSockOptBool to specify if - // data should be held until segments are full by the TCP transport - // protocol. - CorkOption SockOptBool = iota - - // DelayOption is used by SetSockOptBool/GetSockOptBool to specify if - // data should be sent out immediately by the transport protocol. For - // TCP, it determines if the Nagle algorithm is on or off. - DelayOption - - // KeepaliveEnabledOption is used by SetSockOptBool/GetSockOptBool to - // specify whether TCP keepalive is enabled for this socket. - KeepaliveEnabledOption - - // MulticastLoopOption is used by SetSockOptBool/GetSockOptBool to - // specify whether multicast packets sent over a non-loopback interface - // will be looped back. - MulticastLoopOption - - // NoChecksumOption is used by SetSockOptBool/GetSockOptBool to specify - // whether UDP checksum is disabled for this socket. - NoChecksumOption - - // PasscredOption is used by SetSockOptBool/GetSockOptBool to specify - // whether SCM_CREDENTIALS socket control messages are enabled. - // - // Only supported on Unix sockets. - PasscredOption - - // QuickAckOption is stubbed out in SetSockOptBool/GetSockOptBool. - QuickAckOption - - // ReceiveTClassOption is used by SetSockOptBool/GetSockOptBool to - // specify if the IPV6_TCLASS ancillary message is passed with incoming - // packets. - ReceiveTClassOption - - // ReceiveTOSOption is used by SetSockOptBool/GetSockOptBool to specify - // if the TOS ancillary message is passed with incoming packets. - ReceiveTOSOption - - // ReceiveIPPacketInfoOption is used by SetSockOptBool/GetSockOptBool to - // specify if more inforamtion is provided with incoming packets such as - // interface index and address. - ReceiveIPPacketInfoOption - - // ReuseAddressOption is used by SetSockOptBool/GetSockOptBool to - // specify whether Bind() should allow reuse of local address. - ReuseAddressOption - - // ReusePortOption is used by SetSockOptBool/GetSockOptBool to permit - // multiple sockets to be bound to an identical socket address. - ReusePortOption - - // V6OnlyOption is used by SetSockOptBool/GetSockOptBool to specify - // whether an IPv6 socket is to be restricted to sending and receiving - // IPv6 packets only. - V6OnlyOption - - // IPHdrIncludedOption is used by SetSockOpt to indicate for a raw - // endpoint that all packets being written have an IP header and the - // endpoint should not attach an IP header. - IPHdrIncludedOption - - // AcceptConnOption is used by GetSockOptBool to indicate if the - // socket is a listening socket. - AcceptConnOption -) - // SockOptInt represents socket options which values have the int type. type SockOptInt int @@ -1389,6 +1318,18 @@ type ICMPv6PacketStats struct { // RedirectMsg is the total number of ICMPv6 redirect message packets // counted. RedirectMsg *StatCounter + + // MulticastListenerQuery is the total number of Multicast Listener Query + // messages counted. + MulticastListenerQuery *StatCounter + + // MulticastListenerReport is the total number of Multicast Listener Report + // messages counted. + MulticastListenerReport *StatCounter + + // MulticastListenerDone is the total number of Multicast Listener Done + // messages counted. + MulticastListenerDone *StatCounter } // ICMPv4SentPacketStats collects outbound ICMPv4-specific stats. @@ -1430,6 +1371,10 @@ type ICMPv6SentPacketStats struct { type ICMPv6ReceivedPacketStats struct { ICMPv6PacketStats + // Unrecognized is the total number of ICMPv6 packets received that the + // transport layer does not know how to parse. + Unrecognized *StatCounter + // Invalid is the total number of ICMPv6 packets received that the // transport layer could not parse. Invalid *StatCounter @@ -1439,25 +1384,91 @@ type ICMPv6ReceivedPacketStats struct { RouterOnlyPacketsDroppedByHost *StatCounter } -// ICMPStats collects ICMP-specific stats (both v4 and v6). -type ICMPStats struct { +// ICMPv4Stats collects ICMPv4-specific stats. +type ICMPv4Stats struct { // ICMPv4SentPacketStats contains counts of sent packets by ICMPv4 packet type // and a single count of packets which failed to write to the link // layer. - V4PacketsSent ICMPv4SentPacketStats + PacketsSent ICMPv4SentPacketStats // ICMPv4ReceivedPacketStats contains counts of received packets by ICMPv4 // packet type and a single count of invalid packets received. - V4PacketsReceived ICMPv4ReceivedPacketStats + PacketsReceived ICMPv4ReceivedPacketStats +} +// ICMPv6Stats collects ICMPv6-specific stats. +type ICMPv6Stats struct { // ICMPv6SentPacketStats contains counts of sent packets by ICMPv6 packet type // and a single count of packets which failed to write to the link // layer. - V6PacketsSent ICMPv6SentPacketStats + PacketsSent ICMPv6SentPacketStats // ICMPv6ReceivedPacketStats contains counts of received packets by ICMPv6 // packet type and a single count of invalid packets received. - V6PacketsReceived ICMPv6ReceivedPacketStats + PacketsReceived ICMPv6ReceivedPacketStats +} + +// ICMPStats collects ICMP-specific stats (both v4 and v6). +type ICMPStats struct { + // V4 contains the ICMPv4-specifics stats. + V4 ICMPv4Stats + + // V6 contains the ICMPv4-specifics stats. + V6 ICMPv6Stats +} + +// IGMPPacketStats enumerates counts for all IGMP packet types. +type IGMPPacketStats struct { + // MembershipQuery is the total number of Membership Query messages counted. + MembershipQuery *StatCounter + + // V1MembershipReport is the total number of Version 1 Membership Report + // messages counted. + V1MembershipReport *StatCounter + + // V2MembershipReport is the total number of Version 2 Membership Report + // messages counted. + V2MembershipReport *StatCounter + + // LeaveGroup is the total number of Leave Group messages counted. + LeaveGroup *StatCounter +} + +// IGMPSentPacketStats collects outbound IGMP-specific stats. +type IGMPSentPacketStats struct { + IGMPPacketStats + + // Dropped is the total number of IGMP packets dropped due to link layer + // errors. + Dropped *StatCounter +} + +// IGMPReceivedPacketStats collects inbound IGMP-specific stats. +type IGMPReceivedPacketStats struct { + IGMPPacketStats + + // Invalid is the total number of IGMP packets received that IGMP could not + // parse. + Invalid *StatCounter + + // ChecksumErrors is the total number of IGMP packets dropped due to bad + // checksums. + ChecksumErrors *StatCounter + + // Unrecognized is the total number of unrecognized messages counted, these + // are silently ignored for forward-compatibilty. + Unrecognized *StatCounter +} + +// IGMPStats colelcts IGMP-specific stats. +type IGMPStats struct { + // IGMPSentPacketStats contains counts of sent packets by IGMP packet type + // and a single count of invalid packets received. + PacketsSent IGMPSentPacketStats + + // IGMPReceivedPacketStats contains counts of received packets by IGMP packet + // type and a single count of invalid packets received. + PacketsReceived IGMPReceivedPacketStats } // IPStats collects IP-specific stats (both v4 and v6). @@ -1665,6 +1676,9 @@ type Stats struct { // ICMP breaks out ICMP-specific stats (both v4 and v6). ICMP ICMPStats + // IGMP breaks out IGMP-specific stats. + IGMP IGMPStats + // IP breaks out IP-specific stats (both v4 and v6). IP IPStats |