mirror of
https://github.com/safing/portmaster
synced 2025-09-01 10:09:11 +00:00
80664d1a27
* Move portbase into monorepo * Add new simple module mgr * [WIP] Switch to new simple module mgr * Add StateMgr and more worker variants * [WIP] Switch more modules * [WIP] Switch more modules * [WIP] swtich more modules * [WIP] switch all SPN modules * [WIP] switch all service modules * [WIP] Convert all workers to the new module system * [WIP] add new task system to module manager * [WIP] Add second take for scheduling workers * [WIP] Add FIXME for bugs in new scheduler * [WIP] Add minor improvements to scheduler * [WIP] Add new worker scheduler * [WIP] Fix more bug related to new module system * [WIP] Fix start handing of the new module system * [WIP] Improve startup process * [WIP] Fix minor issues * [WIP] Fix missing subsystem in settings * [WIP] Initialize managers in constructor * [WIP] Move module event initialization to constrictors * [WIP] Fix setting for enabling and disabling the SPN module * [WIP] Move API registeration into module construction * [WIP] Update states mgr for all modules * [WIP] Add CmdLine operation support * Add state helper methods to module group and instance * Add notification and module status handling to status package * Fix starting issues * Remove pilot widget and update security lock to new status data * Remove debug logs * Improve http server shutdown * Add workaround for cleanly shutting down firewall+netquery * Improve logging * Add syncing states with notifications for new module system * Improve starting, stopping, shutdown; resolve FIXMEs/TODOs * [WIP] Fix most unit tests * Review new module system and fix minor issues * Push shutdown and restart events again via API * Set sleep mode via interface * Update example/template module * [WIP] Fix spn/cabin unit test * Remove deprecated UI elements * Make log output more similar for the logging transition phase * Switch spn hub and observer cmds to new module system * Fix log sources * Make worker mgr less error prone * Fix tests and minor issues * Fix observation hub * Improve shutdown and restart handling * Split up big connection.go source file * Move varint and dsd packages to structures repo * Improve expansion test * Fix linter warnings * Fix interception module on windows * Fix linter errors --------- Co-authored-by: Vladimir Stoilov <vladimir@safing.io>
75 lines
1.8 KiB
Go
75 lines
1.8 KiB
Go
package nameserver
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import (
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"net"
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"os"
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processInfo "github.com/shirou/gopsutil/process"
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"github.com/safing/portmaster/base/log"
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"github.com/safing/portmaster/service/network/packet"
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"github.com/safing/portmaster/service/network/state"
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)
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var commonResolverIPs = []net.IP{
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net.IPv4zero,
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net.IPv4(127, 0, 0, 1), // default
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net.IPv4(127, 0, 0, 53), // some resolvers on Linux
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net.IPv6zero,
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net.IPv6loopback,
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}
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func findConflictingProcess(ip net.IP, port uint16) (conflictingProcess *processInfo.Process) {
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// Evaluate which IPs to check.
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var ipsToCheck []net.IP
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if ip.Equal(net.IPv4zero) || ip.Equal(net.IPv6zero) {
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ipsToCheck = commonResolverIPs
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} else {
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ipsToCheck = []net.IP{ip}
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}
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// Find the conflicting process.
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var err error
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for _, resolverIP := range ipsToCheck {
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conflictingProcess, err = getListeningProcess(resolverIP, port)
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switch {
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case err != nil:
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// Log the error and let the worker try again.
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log.Warningf("nameserver: failed to find conflicting service: %s", err)
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case conflictingProcess != nil:
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// Conflicting service found.
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return conflictingProcess
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}
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}
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return nil
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}
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func getListeningProcess(resolverIP net.IP, resolverPort uint16) (*processInfo.Process, error) {
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pid, _, err := state.Lookup(&packet.Info{
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Inbound: true,
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Version: 0, // auto-detect
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Protocol: packet.UDP,
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Src: nil, // do not record direction
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SrcPort: 0, // do not record direction
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Dst: resolverIP,
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DstPort: resolverPort,
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}, true)
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if err != nil {
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// there may be nothing listening on :53
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return nil, nil //nolint:nilerr // Treat lookup error as "not found".
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}
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// Ignore if it's us for some reason.
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if pid == os.Getpid() {
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return nil, nil
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}
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proc, err := processInfo.NewProcess(int32(pid))
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if err != nil {
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// Process may have disappeared already.
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return nil, err
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}
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return proc, nil
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}
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