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106 lines
2.2 KiB
Go
106 lines
2.2 KiB
Go
package common
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import (
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"fmt"
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"github.com/Dreamacro/clash/common/utils"
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"github.com/Dreamacro/clash/component/process"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/log"
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"runtime"
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"strconv"
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"strings"
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)
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type Uid struct {
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*Base
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uids []utils.Range[uint32]
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oUid string
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adapter string
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}
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func NewUid(oUid, adapter string) (*Uid, error) {
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//if len(_uids) > 28 {
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// return nil, fmt.Errorf("%s, too many uid to use, maximum support 28 uid", errPayload.Error())
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//}
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if !(runtime.GOOS == "linux" || runtime.GOOS == "android") {
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return nil, fmt.Errorf("uid rule not support this platform")
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}
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var uidRange []utils.Range[uint32]
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for _, u := range strings.Split(oUid, "/") {
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if u == "" {
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continue
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}
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subUids := strings.Split(u, "-")
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subUidsLen := len(subUids)
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if subUidsLen > 2 {
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return nil, errPayload
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}
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uidStart, err := strconv.ParseUint(strings.Trim(subUids[0], "[ ]"), 10, 32)
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if err != nil {
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return nil, errPayload
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}
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switch subUidsLen {
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case 1:
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uidRange = append(uidRange, *utils.NewRange(uint32(uidStart), uint32(uidStart)))
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case 2:
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uidEnd, err := strconv.ParseUint(strings.Trim(subUids[1], "[ ]"), 10, 32)
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if err != nil {
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return nil, errPayload
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}
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uidRange = append(uidRange, *utils.NewRange(uint32(uidStart), uint32(uidEnd)))
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}
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}
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if len(uidRange) == 0 {
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return nil, errPayload
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}
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return &Uid{
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Base: &Base{},
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adapter: adapter,
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oUid: oUid,
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uids: uidRange,
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}, nil
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}
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func (u *Uid) RuleType() C.RuleType {
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return C.Uid
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}
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func (u *Uid) Match(metadata *C.Metadata) (bool, string) {
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srcPort, err := strconv.ParseUint(metadata.SrcPort, 10, 16)
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if err != nil {
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return false, ""
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}
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var uid *uint32
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if metadata.Uid != nil {
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uid = metadata.Uid
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} else if uid, err = process.FindUid(metadata.NetWork.String(), metadata.SrcIP, int(srcPort)); err == nil {
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metadata.Uid = uid
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} else {
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log.Warnln("[UID] could not get uid from %s", metadata.String())
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return false, ""
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}
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if uid != nil {
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for _, _uid := range u.uids {
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if _uid.Contains(*uid) {
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return true, u.adapter
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}
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}
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}
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return false, ""
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}
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func (u *Uid) Adapter() string {
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return u.adapter
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}
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func (u *Uid) Payload() string {
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return u.oUid
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}
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