3a67cc2c45
Merge in DNS/adguard-home from mk-aghnet to master
Updates #2829.
Squashed commit of the following:
commit 519806c04b8d0517aacce9c31f2d06ab56631937
Merge: 92376c86 97361234
Author: Eugene Burkov <e.burkov@adguard.com>
Date: Tue Mar 16 19:13:56 2021 +0300
Merge branch 'master' into mk-aghnet
commit 92376c8665e529191aa482432f9d5e3e2e3afdc8
Author: Eugene Burkov <e.burkov@adguard.com>
Date: Tue Mar 16 18:37:22 2021 +0300
aghnet: fix linux
commit 7f36d19b0e650d4e4fc5cf9ea4b501a7f636abeb
Author: Eugene Burkov <e.burkov@adguard.com>
Date: Tue Mar 16 18:08:30 2021 +0300
aghnet: mv network utils from util
commit aa68c70c1146b8c32303c6e037953a41aa7d72f9
Author: Eugene Burkov <e.burkov@adguard.com>
Date: Tue Mar 16 17:30:06 2021 +0300
aghnet: mv ipDetector here
commit b033657f5c5ee91f869c36508a5eb15976a174a0
Author: Eugene Burkov <e.burkov@adguard.com>
Date: Tue Mar 16 17:24:07 2021 +0300
all: mk aghnet package, rename sysutil package
40 lines
907 B
Go
40 lines
907 B
Go
// +build linux
|
|
|
|
package aghos
|
|
|
|
import (
|
|
"os"
|
|
"syscall"
|
|
|
|
"github.com/AdguardTeam/golibs/log"
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func canBindPrivilegedPorts() (can bool, err error) {
|
|
cnbs, err := unix.PrctlRetInt(unix.PR_CAP_AMBIENT, unix.PR_CAP_AMBIENT_IS_SET, unix.CAP_NET_BIND_SERVICE, 0, 0)
|
|
// Don't check the error because it's always nil on Linux.
|
|
adm, _ := haveAdminRights()
|
|
|
|
return cnbs == 1 || adm, err
|
|
}
|
|
|
|
func setRlimit(val uint) {
|
|
var rlim syscall.Rlimit
|
|
rlim.Max = uint64(val)
|
|
rlim.Cur = uint64(val)
|
|
err := syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rlim)
|
|
if err != nil {
|
|
log.Error("Setrlimit() failed: %v", err)
|
|
}
|
|
}
|
|
|
|
func haveAdminRights() (bool, error) {
|
|
// The error is nil because the platform-independent function signature
|
|
// requires returning an error.
|
|
return os.Getuid() == 0, nil
|
|
}
|
|
|
|
func sendProcessSignal(pid int, sig syscall.Signal) error {
|
|
return syscall.Kill(pid, sig)
|
|
}
|