c35246804
 김태훈
기능 추가 및 변경
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package main
import (
"errors"
"regexp"
"strconv"
)
func setNetwork(env map[string]string) error {
if ok := validateEthernetAddr(env["ethaddr"]); !ok {
return errors.New("invalid ethernet address")
}
if ok := validateIpAddr(env["ipaddr"]); !ok {
return errors.New("invalid ip address")
}
if ok := validateIpAddr(env["netmask"]); !ok {
return errors.New("invalid netmask")
}
if ok := validateIpAddr(env["gateway"]); !ok {
return errors.New("invalid gateway")
}
if hasDualNetwork {
if ok := validateEthernetAddr(env["ethaddr2"]); !ok {
return errors.New("invalid ethernet address 2")
}
if ok := validateIpAddr(env["ipaddr2"]); !ok {
return errors.New("invalid ip address 2")
}
if ok := validateIpAddr(env["netmask2"]); !ok {
return errors.New("invalid netmask 2")
}
if ok := validateIpAddr(env["gateway2"]); !ok {
return errors.New("invalid gateway 2")
}
}
return setEnv(0, env)
}
func validateEthernetAddr(addr string) (ok bool) {
r := regexp.MustCompile(`([0-9a-fA-F]{2}):([0-9a-fA-F]{2}):([0-9a-fA-F]{2}):([0-9a-fA-F]{2}):([0-9a-fA-F]{2}):([0-9a-fA-F]{2})`)
s := r.FindStringSubmatch(addr)
if len(s) != 7 || s[0] != addr {
return false
}
for i, v := range s {
if i == 0 {
continue
}
u, err := strconv.ParseUint(v, 16, 8)
if err != nil {
return false
}
if u > 255 {
return false
}
}
return true
}
func validateIpAddr(addr string) (ok bool) {
r := regexp.MustCompile(`([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)`)
s := r.FindStringSubmatch(addr)
if len(s) != 5 || s[0] != addr {
return false
}
for i, v := range s {
if i == 0 {
continue
}
u, err := strconv.ParseUint(v, 10, 8)
if err != nil {
return false
}
if u > 255 {
return false
}
}
return true
}
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