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wgengine: move link monitor to be owned by the engine, not the router

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And make the monitor package portable with no-op implementations on
unsupported operating systems.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2020-02-17 09:00:38 -08:00
committed by Brad Fitzpatrick
parent 09fbae01a9
commit 7f5e3febe5
11 changed files with 96 additions and 55 deletions
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5
wgengine/monitor/monitor_freebsd.go
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@@ -11,11 +11,12 @@ import (
"strings"
)
// devdConn implements osMon using devd(8).
type devdConn struct {
conn net.Conn
}
func NewConn() (Conn, error) {
func newOSMon() (osMon, error) {
conn, err := net.Dial("unixpacket", "/var/run/devd.seqpacket.pipe")
if err != nil {
return nil, fmt.Errorf("devd dial error: %v", err)
@@ -30,7 +31,7 @@ func (c *devdConn) Close() error {
return c.conn.Close()
}
func (c *devdConn) Receive() (Message, error) {
func (c *devdConn) Receive() (message, error) {
for {
msg, err := bufio.NewReader(c.conn).ReadString('\n')
if err != nil {