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authorJan Gelety <jgelety@cisco.com>2020-09-11 11:08:39 +0200
committerJan Gelety <jgelety@cisco.com>2020-09-12 22:01:41 +0200
commitd68be735d882bafcb672ebb27a66efbcabbeb02d (patch)
tree465c5c733413e77618df32428aaa95938f43e3cb /resources/libraries/python/NATUtil.py
parent2444fb95f7f1e9b19506c198080317431d4f8739 (diff)
Test: Add ramp-up phase to nat44ed-udir tests
Change-Id: I3aa50ec1ef9b0445014daa31e767323060f4a03f Signed-off-by: Jan Gelety <jgelety@cisco.com>
Diffstat (limited to 'resources/libraries/python/NATUtil.py')
-rw-r--r--resources/libraries/python/NATUtil.py30
1 files changed, 28 insertions, 2 deletions
diff --git a/resources/libraries/python/NATUtil.py b/resources/libraries/python/NATUtil.py
index aabcd36cda..620e14aea1 100644
--- a/resources/libraries/python/NATUtil.py
+++ b/resources/libraries/python/NATUtil.py
@@ -13,6 +13,7 @@
"""NAT utilities library."""
+from math import log2, modf
from pprint import pformat
from enum import IntEnum
@@ -140,8 +141,10 @@ class NATUtil:
:param node: Topology node.
:type node: dict
+ :returns: NAT44 summary data.
+ :rtype: str
"""
- PapiSocketExecutor.run_cli_cmd(node, u"show nat44 summary")
+ return PapiSocketExecutor.run_cli_cmd(node, u"show nat44 summary")
@staticmethod
def show_nat_base_data(node):
@@ -197,10 +200,33 @@ class NATUtil:
:returns: Value of max_translations_per_thread NAT44 parameter.
:rtype: int
"""
- from math import log2, modf
rest, mult = modf(log2(sessions/(10*threads)))
return 2 ** (int(mult) + (1 if rest else 0)) * 10
+ @staticmethod
+ def get_nat44_sessions_number(node, proto):
+ """Get number of established NAT44 sessions from actual NAT44 mapping
+ data.
+
+ :param node: DUT node.
+ :param proto: Required protocol - TCP/UDP/ICMP.
+ :type node: dict
+ :type proto: str
+ :returns: Number of established NAT44 sessions.
+ :rtype: int
+ :raises ValueError: If not supported protocol.
+ """
+ nat44_data = dict()
+ if proto in [u"UDP", u"TCP", u"ICMP"]:
+ for line in NATUtil.show_nat44_summary(node).splitlines():
+ sum_k, sum_v = line.split(u":") if u":" in line \
+ else (line, None)
+ nat44_data[sum_k] = sum_v.strip() if isinstance(sum_v, str) \
+ else sum_v
+ else:
+ raise ValueError(f"Unsupported protocol: {proto}!")
+ return nat44_data.get(f"total {proto.lower()} sessions", 0)
+
# DET44 PAPI calls
# DET44 means deterministic mode of NAT44
@staticmethod