GBP: redirect contracts

[vpp.git] / test / util.py

diff --git a/test/util.py b/test/util.py
index 7d973bd..1ab5c1f 100644 (file)
--- a/test/util.py
+++ b/test/util.py
@@ -2,6 +2,7 @@
 
 import socket
 import sys
+import os.path
 from abc import abstractmethod, ABCMeta
 from cStringIO import StringIO
 from scapy.utils6 import in6_mactoifaceid
@@ -11,6 +12,7 @@ from scapy.packet import Raw
 from scapy.layers.inet import IP
 from scapy.layers.inet6 import IPv6, IPv6ExtHdrFragment, IPv6ExtHdrRouting,\
     IPv6ExtHdrHopByHop
+from scapy.utils import hexdump
 from socket import AF_INET6
 
 
@@ -20,6 +22,8 @@ def ppp(headline, packet):
     old_stdout = sys.stdout
     sys.stdout = o
     print(headline)
+    hexdump(packet)
+    print("")
     packet.show()
     sys.stdout = old_stdout
     return o.getvalue()
@@ -70,6 +74,34 @@ def ip6_normalize(ip6):
                             socket.inet_pton(socket.AF_INET6, ip6))
 
 
+def get_core_path(tempdir):
+    return "%s/%s" % (tempdir, get_core_pattern())
+
+
+def is_core_present(tempdir):
+    return os.path.isfile(get_core_path(tempdir))
+
+
+def get_core_pattern():
+    with open("/proc/sys/kernel/core_pattern", "r") as f:
+        corefmt = f.read().strip()
+    return corefmt
+
+
+def check_core_path(logger, core_path):
+    corefmt = get_core_pattern()
+    if corefmt.startswith("|"):
+        logger.error(
+            "WARNING: redirecting the core dump through a"
+            " filter may result in truncated dumps.")
+        logger.error(
+            "   You may want to check the filter settings"
+            " or uninstall it and edit the"
+            " /proc/sys/kernel/core_pattern accordingly.")
+        logger.error(
+            "   current core pattern is: %s" % corefmt)
+
+
 class NumericConstant(object):
     __metaclass__ = ABCMeta