102 lines
2.1 KiB
Go
102 lines
2.1 KiB
Go
package app
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import (
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"fmt"
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"strings"
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"time"
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)
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func restoreAppMarksFromState() error {
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appMarksMu.Lock()
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defer appMarksMu.Unlock()
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if err := ensureAppMarksNft(); err != nil {
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return err
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}
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st := loadAppMarksState()
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now := time.Now().UTC()
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changed := pruneExpiredAppMarksLocked(&st, now)
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clearManagedAppMarkRules(appMarksChain)
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clearManagedAppMarkRules(appMarksGuardChain)
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traffic := loadTrafficModeState()
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vpnIface, _ := resolveTrafficIface(traffic.PreferredIface)
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vpnIface = strings.TrimSpace(vpnIface)
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kept := make([]appMarkItem, 0, len(st.Items))
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for _, it := range st.Items {
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target := strings.ToLower(strings.TrimSpace(it.Target))
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if target != "vpn" && target != "direct" {
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changed = true
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continue
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}
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rel := normalizeCgroupRelOnly(it.CgroupRel)
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if rel == "" {
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rel = normalizeCgroupRelOnly(it.Cgroup)
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}
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if rel == "" {
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changed = true
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continue
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}
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id := it.ID
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if id == 0 {
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inode, err := cgroupDirInode(rel)
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if err != nil {
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changed = true
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continue
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}
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id = inode
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it.ID = inode
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changed = true
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}
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level := it.Level
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if level <= 0 {
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level = strings.Count(strings.Trim(rel, "/"), "/") + 1
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it.Level = level
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changed = true
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}
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abs := "/" + strings.TrimPrefix(rel, "/")
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it.CgroupRel = rel
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it.Cgroup = abs
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if _, err := cgroupDirInode(rel); err != nil {
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changed = true
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continue
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}
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iface := ""
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if target == "vpn" {
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if vpnIface == "" {
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// Keep state for later retry when VPN interface appears.
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kept = append(kept, it)
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continue
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}
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iface = vpnIface
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}
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if err := nftInsertAppMarkRule(target, rel, level, id, iface); err != nil {
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appendTraceLine("traffic", fmt.Sprintf("appmarks restore failed target=%s id=%d err=%v", target, id, err))
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kept = append(kept, it)
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continue
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}
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if !nftHasAppMarkRule(target, id) {
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appendTraceLine("traffic", fmt.Sprintf("appmarks restore post-check failed target=%s id=%d", target, id))
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kept = append(kept, it)
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continue
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}
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kept = append(kept, it)
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}
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st.Items = kept
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if changed {
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return saveAppMarksState(st)
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}
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return nil
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}
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