diff options
Diffstat (limited to 'vendor')
3 files changed, 149 insertions, 0 deletions
diff --git a/vendor/github.com/coreos/go-systemd/activation/files.go b/vendor/github.com/coreos/go-systemd/activation/files.go new file mode 100644 index 000000000..c8e85fcd5 --- /dev/null +++ b/vendor/github.com/coreos/go-systemd/activation/files.go @@ -0,0 +1,52 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package activation implements primitives for systemd socket activation. +package activation + +import ( + "os" + "strconv" + "syscall" +) + +// based on: https://gist.github.com/alberts/4640792 +const ( + listenFdsStart = 3 +) + +func Files(unsetEnv bool) []*os.File { + if unsetEnv { + defer os.Unsetenv("LISTEN_PID") + defer os.Unsetenv("LISTEN_FDS") + } + + pid, err := strconv.Atoi(os.Getenv("LISTEN_PID")) + if err != nil || pid != os.Getpid() { + return nil + } + + nfds, err := strconv.Atoi(os.Getenv("LISTEN_FDS")) + if err != nil || nfds == 0 { + return nil + } + + files := make([]*os.File, 0, nfds) + for fd := listenFdsStart; fd < listenFdsStart+nfds; fd++ { + syscall.CloseOnExec(fd) + files = append(files, os.NewFile(uintptr(fd), "LISTEN_FD_"+strconv.Itoa(fd))) + } + + return files +} diff --git a/vendor/github.com/coreos/go-systemd/activation/listeners.go b/vendor/github.com/coreos/go-systemd/activation/listeners.go new file mode 100644 index 000000000..fd5dfc709 --- /dev/null +++ b/vendor/github.com/coreos/go-systemd/activation/listeners.go @@ -0,0 +1,60 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package activation + +import ( + "crypto/tls" + "net" +) + +// Listeners returns a slice containing a net.Listener for each matching socket type +// passed to this process. +// +// The order of the file descriptors is preserved in the returned slice. +// Nil values are used to fill any gaps. For example if systemd were to return file descriptors +// corresponding with "udp, tcp, tcp", then the slice would contain {nil, net.Listener, net.Listener} +func Listeners(unsetEnv bool) ([]net.Listener, error) { + files := Files(unsetEnv) + listeners := make([]net.Listener, len(files)) + + for i, f := range files { + if pc, err := net.FileListener(f); err == nil { + listeners[i] = pc + } + } + return listeners, nil +} + +// TLSListeners returns a slice containing a net.listener for each matching TCP socket type +// passed to this process. +// It uses default Listeners func and forces TCP sockets handlers to use TLS based on tlsConfig. +func TLSListeners(unsetEnv bool, tlsConfig *tls.Config) ([]net.Listener, error) { + listeners, err := Listeners(unsetEnv) + + if listeners == nil || err != nil { + return nil, err + } + + if tlsConfig != nil && err == nil { + for i, l := range listeners { + // Activate TLS only for TCP sockets + if l.Addr().Network() == "tcp" { + listeners[i] = tls.NewListener(l, tlsConfig) + } + } + } + + return listeners, err +} diff --git a/vendor/github.com/coreos/go-systemd/activation/packetconns.go b/vendor/github.com/coreos/go-systemd/activation/packetconns.go new file mode 100644 index 000000000..48b2ca029 --- /dev/null +++ b/vendor/github.com/coreos/go-systemd/activation/packetconns.go @@ -0,0 +1,37 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package activation + +import ( + "net" +) + +// PacketConns returns a slice containing a net.PacketConn for each matching socket type +// passed to this process. +// +// The order of the file descriptors is preserved in the returned slice. +// Nil values are used to fill any gaps. For example if systemd were to return file descriptors +// corresponding with "udp, tcp, udp", then the slice would contain {net.PacketConn, nil, net.PacketConn} +func PacketConns(unsetEnv bool) ([]net.PacketConn, error) { + files := Files(unsetEnv) + conns := make([]net.PacketConn, len(files)) + + for i, f := range files { + if pc, err := net.FilePacketConn(f); err == nil { + conns[i] = pc + } + } + return conns, nil +} |