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authorJason A. Donenfeld <Jason@zx2c4.com>2019-03-04 03:04:22 +0100
committerJason A. Donenfeld <Jason@zx2c4.com>2019-03-04 03:09:54 +0100
commit242d06b0872686cd37e25d444586ef2c04c0d419 (patch)
tree7ded72077c85e0035bd40dbeab562b3bab318a53
parentifaceconfig: call setsockopt less often (diff)
downloadwireguard-windows-242d06b0872686cd37e25d444586ef2c04c0d419.tar.xz
wireguard-windows-242d06b0872686cd37e25d444586ef2c04c0d419.zip
ifaceconfig: deduplicate routes
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to '')
-rw-r--r--Makefile3
-rw-r--r--service/ifaceconfig.go49
2 files changed, 33 insertions, 19 deletions
diff --git a/Makefile b/Makefile
index f83a18cd..0fb865a9 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,8 @@ all: wireguard.exe
resources.syso: ui/icon/icon.ico ui/manifest.xml go.mod
go run github.com/akavel/rsrc -manifest ui/manifest.xml -ico ui/icon/icon.ico -arch amd64 -o resources.syso
-wireguard.exe: resources.syso
+rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst *,%,$2),$d))
+wireguard.exe: resources.syso $(call rwildcard,,*.go *.c *.h)
CC=x86_64-w64-mingw32-gcc CGO_ENABLED=1 GOOS=windows GOARCH=amd64 go build -ldflags="-H windowsgui" -o $@
run: wireguard.exe
diff --git a/service/ifaceconfig.go b/service/ifaceconfig.go
index eda8fdb0..c6a8257d 100644
--- a/service/ifaceconfig.go
+++ b/service/ifaceconfig.go
@@ -6,6 +6,7 @@
package service
import (
+ "bytes"
"encoding/binary"
"errors"
"golang.org/x/sys/windows"
@@ -13,7 +14,7 @@ import (
"golang.zx2c4.com/wireguard/device"
"golang.zx2c4.com/wireguard/windows/conf"
"net"
- "os"
+ "sort"
"unsafe"
)
@@ -157,25 +158,37 @@ func configureInterface(conf *conf.Config, guid *windows.GUID) error {
return err
}
- err = iface.FlushRoutes()
- if err != nil {
- return nil
- }
- for _, route := range routes {
- err = iface.AddRoute(&route, false)
-
- //TODO: Ignoring duplicate errors like this maybe isn't very reasonable.
- // instead we should make sure we're not adding duplicates ourselves when
- // inserting the gateway routes.
- if syserr, ok := err.(*os.SyscallError); ok {
- if syserr.Err == windows.Errno(ERROR_OBJECT_ALREADY_EXISTS) {
- err = nil
- }
+ deduplicatedRoutes := make([]*winipcfg.RouteData, routeCount)
+ routeCount = 0
+ sort.Slice(routes, func(i, j int) bool {
+ if routes[i].Metric < routes[j].Metric {
+ return true
}
-
- if err != nil {
- return err
+ if bytes.Compare(routes[i].NextHop, routes[j].NextHop) == -1 {
+ return true
+ }
+ if bytes.Compare(routes[i].Destination.IP, routes[j].Destination.IP) == -1 {
+ return true
}
+ if bytes.Compare(routes[i].Destination.Mask, routes[j].Destination.Mask) == -1 {
+ return true
+ }
+ return false
+ })
+ for i := 0; i < len(routes); i++ {
+ if i > 0 && routes[i].Metric == routes[i - 1].Metric &&
+ bytes.Equal(routes[i].NextHop, routes[i - 1].NextHop) &&
+ bytes.Equal(routes[i].Destination.IP, routes[i - 1].Destination.IP) &&
+ bytes.Equal(routes[i].Destination.Mask, routes[i - 1].Destination.Mask) {
+ continue
+ }
+ deduplicatedRoutes[routeCount] = &routes[i]
+ routeCount++
+ }
+
+ err = iface.SetRoutes(deduplicatedRoutes, false)
+ if err != nil {
+ return nil
}
err = iface.SetDNS(conf.Interface.Dns)