Switch IPv4 saddr/daddr to u32's within tools/tcpstates.py (#1862)

make types appropriate for ipaddr/protocol etc.
diff --git a/tools/tcpaccept.py b/tools/tcpaccept.py
index d52d209..eab6627 100755
--- a/tools/tcpaccept.py
+++ b/tools/tcpaccept.py
@@ -51,22 +51,22 @@
 struct ipv4_data_t {
     // XXX: switch some to u32's when supported
     u64 ts_us;
-    u64 pid;
+    u32 pid;
     u32 saddr;
     u32 daddr;
     u64 ip;
-    u64 lport;
+    u16 lport;
     char task[TASK_COMM_LEN];
 };
 BPF_PERF_OUTPUT(ipv4_events);
 
 struct ipv6_data_t {
     u64 ts_us;
-    u64 pid;
+    u32 pid;
     unsigned __int128 saddr;
     unsigned __int128 daddr;
     u64 ip;
-    u64 lport;
+    u16 lport;
     char task[TASK_COMM_LEN];
 };
 BPF_PERF_OUTPUT(ipv6_events);
@@ -212,22 +212,22 @@
 class Data_ipv4(ct.Structure):
     _fields_ = [
         ("ts_us", ct.c_ulonglong),
-        ("pid", ct.c_ulonglong),
+        ("pid", ct.c_uint),
         ("saddr", ct.c_uint),
         ("daddr", ct.c_uint),
         ("ip", ct.c_ulonglong),
-        ("lport", ct.c_ulonglong),
+        ("lport", ct.c_ushort),
         ("task", ct.c_char * TASK_COMM_LEN)
     ]
 
 class Data_ipv6(ct.Structure):
     _fields_ = [
         ("ts_us", ct.c_ulonglong),
-        ("pid", ct.c_ulonglong),
+        ("pid", ct.c_uint),
         ("saddr", (ct.c_ulonglong * 2)),
         ("daddr", (ct.c_ulonglong * 2)),
         ("ip", ct.c_ulonglong),
-        ("lport", ct.c_ulonglong),
+        ("lport", ct.c_ushort),
         ("task", ct.c_char * TASK_COMM_LEN)
     ]