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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:14:23 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:14:23 +0000 |
commit | 73df946d56c74384511a194dd01dbe099584fd1a (patch) | |
tree | fd0bcea490dd81327ddfbb31e215439672c9a068 /src/syscall/route_dragonfly.go | |
parent | Initial commit. (diff) | |
download | golang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.tar.xz golang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.zip |
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/syscall/route_dragonfly.go')
-rw-r--r-- | src/syscall/route_dragonfly.go | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/syscall/route_dragonfly.go b/src/syscall/route_dragonfly.go new file mode 100644 index 0000000..b562400 --- /dev/null +++ b/src/syscall/route_dragonfly.go @@ -0,0 +1,84 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package syscall + +import "unsafe" + +func (any *anyMessage) toRoutingMessage(b []byte) RoutingMessage { + switch any.Type { + case RTM_ADD, RTM_DELETE, RTM_CHANGE, RTM_GET, RTM_LOSING, RTM_REDIRECT, RTM_MISS, RTM_LOCK, RTM_RESOLVE: + p := (*RouteMessage)(unsafe.Pointer(any)) + // We don't support sockaddr_mpls for now. + p.Header.Addrs &= RTA_DST | RTA_GATEWAY | RTA_NETMASK | RTA_GENMASK | RTA_IFA | RTA_IFP | RTA_BRD | RTA_AUTHOR + return &RouteMessage{Header: p.Header, Data: b[SizeofRtMsghdr:any.Msglen]} + case RTM_IFINFO: + p := (*InterfaceMessage)(unsafe.Pointer(any)) + return &InterfaceMessage{Header: p.Header, Data: b[SizeofIfMsghdr:any.Msglen]} + case RTM_IFANNOUNCE: + p := (*InterfaceAnnounceMessage)(unsafe.Pointer(any)) + return &InterfaceAnnounceMessage{Header: p.Header} + case RTM_NEWADDR, RTM_DELADDR: + p := (*InterfaceAddrMessage)(unsafe.Pointer(any)) + return &InterfaceAddrMessage{Header: p.Header, Data: b[SizeofIfaMsghdr:any.Msglen]} + case RTM_NEWMADDR, RTM_DELMADDR: + p := (*InterfaceMulticastAddrMessage)(unsafe.Pointer(any)) + return &InterfaceMulticastAddrMessage{Header: p.Header, Data: b[SizeofIfmaMsghdr:any.Msglen]} + } + return nil +} + +// InterfaceAnnounceMessage represents a routing message containing +// network interface arrival and departure information. +// +// Deprecated: Use golang.org/x/net/route instead. +type InterfaceAnnounceMessage struct { + Header IfAnnounceMsghdr +} + +func (m *InterfaceAnnounceMessage) sockaddr() ([]Sockaddr, error) { return nil, nil } + +// InterfaceMulticastAddrMessage represents a routing message +// containing network interface address entries. +// +// Deprecated: Use golang.org/x/net/route instead. +type InterfaceMulticastAddrMessage struct { + Header IfmaMsghdr + Data []byte +} + +func (m *InterfaceMulticastAddrMessage) sockaddr() ([]Sockaddr, error) { + var sas [RTAX_MAX]Sockaddr + b := m.Data[:] + for i := uint(0); i < RTAX_MAX && len(b) >= minRoutingSockaddrLen; i++ { + if m.Header.Addrs&(1<<i) == 0 { + continue + } + rsa := (*RawSockaddr)(unsafe.Pointer(&b[0])) + switch rsa.Family { + case AF_LINK: + sa, err := parseSockaddrLink(b) + if err != nil { + return nil, err + } + sas[i] = sa + b = b[rsaAlignOf(int(rsa.Len)):] + case AF_INET, AF_INET6: + sa, err := parseSockaddrInet(b, rsa.Family) + if err != nil { + return nil, err + } + sas[i] = sa + b = b[rsaAlignOf(int(rsa.Len)):] + default: + sa, l, err := parseLinkLayerAddr(b) + if err != nil { + return nil, err + } + sas[i] = sa + b = b[l:] + } + } + return sas[:], nil +} |