Try to use kernel connector

1 files changed, 44 insertions, 13 deletions

diff --git a/src/deal.go b/src/deal.go
index aaac8c5..717344c 100644
--- a/src/deal.go
+++ b/src/deal.go
@@ -55,18 +55,25 @@ func deal() {
                         break
                 }
 
+                // fmt.Printf("%v\n", cooked)
+
                 switch cooked.tag {
                 case NEWPID:
                         dealNewPid(cooked)
                 case EXECVE:
+                        check(cooked)
                         dealExecve(cooked)
                 case PIDEXIT:
+                        check(cooked)
                         deletePid(cooked)
                 case FILEOPEN:
+                        check(cooked)
                         fileOpen(cooked)
                 case FILEWRITE:
+                        check(cooked)
                         fileWrite(cooked)
                 case FILECLOSE:
+                        check(cooked)
                         fileClose(cooked)
                 }
         }
@@ -168,19 +175,19 @@ func dealExecve(cooked Event) {
                                 },
                         },
                 })
-        } else {
-                // 先fork抵达，插入
-                pidCol.InsertOne(bson.M{
-                        "ppid":     cooked.ppid,
-                        "pid":      cooked.pid,
-                        "children": []bson.M{},
-                        "execve": []bson.M{
-                                {
-                                        "timestamp": cooked.timestamp,
-                                        "execArgs":  cooked.argv,
-                                },
-                        },
-                })
+                // } else {
+                //      // 先fork抵达，插入
+                //      pidCol.InsertOne(bson.M{
+                //              "ppid":     cooked.ppid,
+                //              "pid":      cooked.pid,
+                //              "children": []bson.M{},
+                //              "execve": []bson.M{
+                //                      {
+                //                              "timestamp": cooked.timestamp,
+                //                              "execArgs":  cooked.argv,
+                //                      },
+                //              },
+                //      })
         }
         mongoMutex.Unlock()
 }
@@ -255,3 +262,27 @@ func fileWrite(cooked Event) {
                 "close_timestamp": bson.M{"$exists": false},
         }, bson.M{"$push": bson.M{"written": cooked.timestamp}})
 }
+
+func check(cooked Event) {
+        // 检查进程是否需要记录
+        // 有无父进程在观察中
+        docRes, err = pidCol.Finddoc(bson.M{"pid": cooked.ppid})
+        if err != nil || len(docRes) != 1 {
+                return
+        }
+
+        // 自身是否已经记录
+        docRes, err = pidCol.Finddoc(bson.M{"pid": cooked.pid})
+        if err != nil {
+                fmt.Printf("Err finding: %v\n", err)
+                return
+        }
+        if len(docRes) == 0 {
+                pidCol.InsertOne(bson.M{
+                        "ppid":            cooked.ppid,
+                        "pid":             cooked.pid,
+                        "children":        []bson.M{},
+                        "start_timestamp": cooked.timestamp,
+                })
+        }
+}