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author | Christopher Speller <crspeller@gmail.com> | 2016-10-03 16:03:15 -0400 |
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committer | GitHub <noreply@github.com> | 2016-10-03 16:03:15 -0400 |
commit | 8f91c777559748fa6e857d9fc1f4ae079a532813 (patch) | |
tree | 190f7cef373764a0d47a91045fdb486ee3d6781d /vendor/golang.org/x/net/ipv6/dgramopt_posix.go | |
parent | 5f8e5c401bd96cba9a98b2db02d72f9cbacb0103 (diff) | |
download | chat-8f91c777559748fa6e857d9fc1f4ae079a532813.tar.gz chat-8f91c777559748fa6e857d9fc1f4ae079a532813.tar.bz2 chat-8f91c777559748fa6e857d9fc1f4ae079a532813.zip |
Adding ability to serve TLS directly from Mattermost server (#4119)
Diffstat (limited to 'vendor/golang.org/x/net/ipv6/dgramopt_posix.go')
-rw-r--r-- | vendor/golang.org/x/net/ipv6/dgramopt_posix.go | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/ipv6/dgramopt_posix.go b/vendor/golang.org/x/net/ipv6/dgramopt_posix.go new file mode 100644 index 000000000..4ea7bc2d6 --- /dev/null +++ b/vendor/golang.org/x/net/ipv6/dgramopt_posix.go @@ -0,0 +1,290 @@ +// Copyright 2013 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. + +// +build darwin dragonfly freebsd linux netbsd openbsd windows + +package ipv6 + +import ( + "net" + "syscall" + + "golang.org/x/net/internal/netreflect" +) + +// MulticastHopLimit returns the hop limit field value for outgoing +// multicast packets. +func (c *dgramOpt) MulticastHopLimit() (int, error) { + if !c.ok() { + return 0, syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return 0, err + } + return getInt(s, &sockOpts[ssoMulticastHopLimit]) +} + +// SetMulticastHopLimit sets the hop limit field value for future +// outgoing multicast packets. +func (c *dgramOpt) SetMulticastHopLimit(hoplim int) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + return setInt(s, &sockOpts[ssoMulticastHopLimit], hoplim) +} + +// MulticastInterface returns the default interface for multicast +// packet transmissions. +func (c *dgramOpt) MulticastInterface() (*net.Interface, error) { + if !c.ok() { + return nil, syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return nil, err + } + return getInterface(s, &sockOpts[ssoMulticastInterface]) +} + +// SetMulticastInterface sets the default interface for future +// multicast packet transmissions. +func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + return setInterface(s, &sockOpts[ssoMulticastInterface], ifi) +} + +// MulticastLoopback reports whether transmitted multicast packets +// should be copied and send back to the originator. +func (c *dgramOpt) MulticastLoopback() (bool, error) { + if !c.ok() { + return false, syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return false, err + } + on, err := getInt(s, &sockOpts[ssoMulticastLoopback]) + if err != nil { + return false, err + } + return on == 1, nil +} + +// SetMulticastLoopback sets whether transmitted multicast packets +// should be copied and send back to the originator. +func (c *dgramOpt) SetMulticastLoopback(on bool) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + return setInt(s, &sockOpts[ssoMulticastLoopback], boolint(on)) +} + +// JoinGroup joins the group address group on the interface ifi. +// By default all sources that can cast data to group are accepted. +// It's possible to mute and unmute data transmission from a specific +// source by using ExcludeSourceSpecificGroup and +// IncludeSourceSpecificGroup. +// JoinGroup uses the system assigned multicast interface when ifi is +// nil, although this is not recommended because the assignment +// depends on platforms and sometimes it might require routing +// configuration. +func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + grp := netAddrToIP16(group) + if grp == nil { + return errMissingAddress + } + return setGroup(s, &sockOpts[ssoJoinGroup], ifi, grp) +} + +// LeaveGroup leaves the group address group on the interface ifi +// regardless of whether the group is any-source group or +// source-specific group. +func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + grp := netAddrToIP16(group) + if grp == nil { + return errMissingAddress + } + return setGroup(s, &sockOpts[ssoLeaveGroup], ifi, grp) +} + +// JoinSourceSpecificGroup joins the source-specific group comprising +// group and source on the interface ifi. +// JoinSourceSpecificGroup uses the system assigned multicast +// interface when ifi is nil, although this is not recommended because +// the assignment depends on platforms and sometimes it might require +// routing configuration. +func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + grp := netAddrToIP16(group) + if grp == nil { + return errMissingAddress + } + src := netAddrToIP16(source) + if src == nil { + return errMissingAddress + } + return setSourceGroup(s, &sockOpts[ssoJoinSourceGroup], ifi, grp, src) +} + +// LeaveSourceSpecificGroup leaves the source-specific group on the +// interface ifi. +func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + grp := netAddrToIP16(group) + if grp == nil { + return errMissingAddress + } + src := netAddrToIP16(source) + if src == nil { + return errMissingAddress + } + return setSourceGroup(s, &sockOpts[ssoLeaveSourceGroup], ifi, grp, src) +} + +// ExcludeSourceSpecificGroup excludes the source-specific group from +// the already joined any-source groups by JoinGroup on the interface +// ifi. +func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + grp := netAddrToIP16(group) + if grp == nil { + return errMissingAddress + } + src := netAddrToIP16(source) + if src == nil { + return errMissingAddress + } + return setSourceGroup(s, &sockOpts[ssoBlockSourceGroup], ifi, grp, src) +} + +// IncludeSourceSpecificGroup includes the excluded source-specific +// group by ExcludeSourceSpecificGroup again on the interface ifi. +func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + grp := netAddrToIP16(group) + if grp == nil { + return errMissingAddress + } + src := netAddrToIP16(source) + if src == nil { + return errMissingAddress + } + return setSourceGroup(s, &sockOpts[ssoUnblockSourceGroup], ifi, grp, src) +} + +// Checksum reports whether the kernel will compute, store or verify a +// checksum for both incoming and outgoing packets. If on is true, it +// returns an offset in bytes into the data of where the checksum +// field is located. +func (c *dgramOpt) Checksum() (on bool, offset int, err error) { + if !c.ok() { + return false, 0, syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return false, 0, err + } + offset, err = getInt(s, &sockOpts[ssoChecksum]) + if err != nil { + return false, 0, err + } + if offset < 0 { + return false, 0, nil + } + return true, offset, nil +} + +// SetChecksum enables the kernel checksum processing. If on is ture, +// the offset should be an offset in bytes into the data of where the +// checksum field is located. +func (c *dgramOpt) SetChecksum(on bool, offset int) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + if !on { + offset = -1 + } + return setInt(s, &sockOpts[ssoChecksum], offset) +} + +// ICMPFilter returns an ICMP filter. +func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) { + if !c.ok() { + return nil, syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return nil, err + } + return getICMPFilter(s, &sockOpts[ssoICMPFilter]) +} + +// SetICMPFilter deploys the ICMP filter. +func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error { + if !c.ok() { + return syscall.EINVAL + } + s, err := netreflect.PacketSocketOf(c.PacketConn) + if err != nil { + return err + } + return setICMPFilter(s, &sockOpts[ssoICMPFilter], f) +} |