snow/wireguard-go
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device: return generic error from Ipc{Get,Set}Operation.

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This makes uapi.go's public API conform to Go style in terms
of error types.

Signed-off-by: David Anderson <danderson@tailscale.com>
This commit is contained in:
David Anderson 2020-04-01 09:27:02 -07:00 committed by Jason A. Donenfeld
parent c76b818466
commit f2c6faad44
2 changed files with 16 additions and 5 deletions
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19
device/uapi.go
View file

@ -7,6 +7,7 @@ package device
import ( import (
"bufio" "bufio"
"errors"
"fmt" "fmt"
"io" "io"
"net" "net"
@ -31,7 +32,7 @@ func (s IPCError) ErrorCode() int64 {
return s.int64 return s.int64
} }
func (device *Device) IpcGetOperation(socket *bufio.Writer) *IPCError { func (device *Device) IpcGetOperation(socket *bufio.Writer) error {
lines := make([]string, 0, 100) lines := make([]string, 0, 100)
send := func(line string) { send := func(line string) {
lines = append(lines, line) lines = append(lines, line)
@ -106,7 +107,7 @@ func (device *Device) IpcGetOperation(socket *bufio.Writer) *IPCError {
return nil return nil
} }
func (device *Device) IpcSetOperation(socket *bufio.Reader) *IPCError { func (device *Device) IpcSetOperation(socket *bufio.Reader) error {
scanner := bufio.NewScanner(socket) scanner := bufio.NewScanner(socket)
logError := device.log.Error logError := device.log.Error
logDebug := device.log.Debug logDebug := device.log.Debug
@ -421,10 +422,20 @@ func (device *Device) IpcHandle(socket net.Conn) {
switch op { switch op {
case "set=1\n": case "set=1\n":
status = device.IpcSetOperation(buffered.Reader) err = device.IpcSetOperation(buffered.Reader)
if err != nil && !errors.As(err, &status) {
// should never happen
device.log.Error.Println("Invalid UAPI error:", err)
status = &IPCError{1}
}
case "get=1\n": case "get=1\n":
status = device.IpcGetOperation(buffered.Writer) err = device.IpcGetOperation(buffered.Writer)
if err != nil && !errors.As(err, &status) {
// should never happen
device.log.Error.Println("Invalid UAPI error:", err)
status = &IPCError{1}
}
default: default:
device.log.Error.Println("Invalid UAPI operation:", op) device.log.Error.Println("Invalid UAPI operation:", op)

2
go.mod
View file

@ -1,6 +1,6 @@
module golang.zx2c4.com/wireguard module golang.zx2c4.com/wireguard
go 1.12 go 1.13
require ( require (
golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc