Initial commit after restructure

process/proc/gather.go

@@ -0,0 +1,56 @@
+// Copyright Safing ICS Technologies GmbH. Use of this source code is governed by the AGPL license that can be found in the LICENSE file.
+
+package proc
+
+import (
+	"net"
+	"time"
+)
+
+const (
+	Success uint8 = iota
+	NoSocket
+	NoProcess
+)
+
+func GetPidOfConnection(localIP *net.IP, localPort uint16, protocol uint8) (pid int, status uint8) {
+	uid, inode, ok := getConnectionSocket(localIP, localPort, protocol)
+	if !ok {
+		uid, inode, ok = getListeningSocket(localIP, localPort, protocol)
+		for i := 0; i < 3 && !ok; i++ {
+			// give kernel some time, then try again
+			// log.Tracef("process: giving kernel some time to think")
+			time.Sleep(15 * time.Millisecond)
+			uid, inode, ok = getConnectionSocket(localIP, localPort, protocol)
+			if !ok {
+				uid, inode, ok = getListeningSocket(localIP, localPort, protocol)
+			}
+		}
+		if !ok {
+			return -1, NoSocket
+		}
+	}
+	pid, ok = GetPidOfInode(uid, inode)
+	for i := 0; i < 3 && !ok; i++ {
+		// give kernel some time, then try again
+		// log.Tracef("process: giving kernel some time to think")
+		time.Sleep(15 * time.Millisecond)
+		pid, ok = GetPidOfInode(uid, inode)
+	}
+	if !ok {
+		return -1, NoProcess
+	}
+	return
+}
+
+func GetPidOfIncomingConnection(localIP *net.IP, localPort uint16, protocol uint8) (pid int, status uint8) {
+	uid, inode, ok := getListeningSocket(localIP, localPort, protocol)
+	if !ok {
+		return -1, NoSocket
+	}
+	pid, ok = GetPidOfInode(uid, inode)
+	if !ok {
+		return -1, NoProcess
+	}
+	return
+}