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proxy: listen on vsock before requesting a connection

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The 9P operations tell the host to connect to the vsock port in the
UDP case, so always listen before sending the 9P request.

Signed-off-by: David Scott <dave.scott@docker.com>
This commit is contained in:
David Scott 2016-04-22 15:17:56 +01:00
parent caeb0d53cc
commit e940e12abc
1 changed files with 6 additions and 6 deletions
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12
alpine/packages/proxy/main.go
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@ -14,17 +14,17 @@ import (
func main() { func main() {
host, port, container := parseHostContainerAddrs() host, port, container := parseHostContainerAddrs()
p, err := libproxy.NewProxy(&vsock.VsockAddr{Port: uint(port)}, container)
if err != nil {
sendError(err)
}
ctl, err := exposePort(host, port) ctl, err := exposePort(host, port)
if err != nil { if err != nil {
sendError(err) sendError(err)
} }
p, err := libproxy.NewProxy(&vsock.VsockAddr{Port: uint(port)}, container)
if err != nil {
sendError(err)
}
go handleStopSignals(p) go handleStopSignals(p)
// TODO: avoid this line if we are running in a TTY
sendOK() sendOK()
p.Run() p.Run()
ctl.Close() // ensure ctl remains alive and un-GCed until here ctl.Close() // ensure ctl remains alive and un-GCed until here
@ -32,7 +32,7 @@ func main() {
} }
func exposePort(host net.Addr, port int) (*os.File, error) { func exposePort(host net.Addr, port int) (*os.File, error) {
name := host.String() name := host.Network() + ":" + host.String()
log.Printf("exposePort %s\n", name) log.Printf("exposePort %s\n", name)
err := os.Mkdir("/port/"+name, 0) err := os.Mkdir("/port/"+name, 0)
if err != nil { if err != nil {