crip/ripv2/routes/routes.go
Jim Colderwood 83bbd52cee Route slice
2024-04-10 16:33:33 +01:00

55 lines
1.0 KiB
Go

package routes
import (
"net"
"time"
"github.com/crip/ripv2"
)
type Routes []Route
type Route struct {
Addr net.IP
Subnet net.IPMask
Nexthop net.IP
Metric uint32
TTL time.Time
}
func New() Routes {
var routes Routes
return routes
}
func (r *Routes) append(route Route) {
*r = append(*r, route)
}
func (r *Routes) ParseRoutes(addr net.UDPAddr, rip *[25]ripv2.RIP) {
var route Route
for _, rip := range *rip {
/* if not af_inet */
if rip.AFI != 2 {
continue
}
if rip.Addr == 0 || rip.Subnet == 0 {
continue
}
route = Route{}
route.Addr = net.IPv4(byte(rip.Addr>>24), byte(rip.Addr>>16), byte(rip.Addr>>8), byte(rip.Addr))
route.Subnet = net.IPv4Mask(byte(rip.Subnet>>24), byte(rip.Subnet>>16), byte(rip.Subnet>>8), byte(rip.Subnet))
if rip.Nexthop == 0 {
route.Nexthop = addr.IP
} else {
route.Nexthop = net.IPv4(byte(rip.Nexthop>>24), byte(rip.Nexthop>>16), byte(rip.Nexthop>>8), byte(rip.Nexthop))
}
route.Metric = rip.Metric
route.TTL = time.Now()
r.append(route)
}
}