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refactor: tidy auto-route code

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This commit is contained in:
adlyq 2022-04-23 17:31:16 +08:00
parent ce663a7b96
commit c77993eed3
1 changed files with 12 additions and 16 deletions
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28
listener/tun/ipstack/commons/router_linux.go
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@ -48,22 +48,11 @@ func configInterfaceRouting(interfaceName string, addr netip.Prefix) error {
return err
}
}
_, err := cmd.ExecCmd(fmt.Sprintf("ip rule add from 0.0.0.0 iif lo uidrange 0-4294967294 lookup %d pref 9000", tableId))
if err != nil {
log.Warnln("%s", err)
}
_, err = cmd.ExecCmd(fmt.Sprintf("ip rule add from %s iif lo uidrange 0-4294967294 lookup %d pref 9001", linkIP, tableId))
if err != nil {
log.Warnln("%s", err)
}
_, err = cmd.ExecCmd(fmt.Sprintf("ip rule add from all iif %s lookup main suppress_prefixlength 0 pref 9002", interfaceName))
if err != nil {
log.Warnln("%s", err)
}
_, err = cmd.ExecCmd(fmt.Sprintf("ip rule add not from all iif lo lookup %d pref 9003", tableId))
if err != nil {
log.Warnln("%s", err)
}
execAddRuleCmd(fmt.Sprintf("from 0.0.0.0 iif lo uidrange 0-4294967294 lookup %d pref 9000", tableId))
execAddRuleCmd(fmt.Sprintf("from %s iif lo uidrange 0-4294967294 lookup %d pref 9001", linkIP, tableId))
execAddRuleCmd(fmt.Sprintf("from all iif %s lookup main suppress_prefixlength 0 pref 9002", interfaceName))
execAddRuleCmd(fmt.Sprintf("not from all iif lo lookup %d pref 9003", tableId))
} else {
for _, route := range defaultRoutes {
if err := execRouterCmd("add", route, interfaceName, linkIP.String(), "main"); err != nil {
@ -77,6 +66,13 @@ func configInterfaceRouting(interfaceName string, addr netip.Prefix) error {
return nil
}
func execAddRuleCmd(rule string) {
_, err := cmd.ExecCmd("ip rule add " + rule)
if err != nil {
log.Warnln("%s", err)
}
}
func execRouterCmd(action, route, interfaceName, linkIP, table string) error {
cmdStr := fmt.Sprintf("ip route %s %s dev %s proto kernel scope link src %s table %s", action, route, interfaceName, linkIP, table)