Introduce OFPFlow class and all its decoders.
Most of the decoders are generic (from decoders.py). Some have special
syntax and need a specific implementation.
Decoders for nat are moved to the common decoders.py because it's syntax
is shared with other types of flows (e.g: dpif flows).
Signed-off-by: Adrian Moreno <amore...@redhat.com>
---
python/automake.mk | 2 +
python/ovs/flows/decoders.py | 108 +++++++++
python/ovs/flows/ofp.py | 453 +++++++++++++++++++++++++++++++++++
python/ovs/flows/ofp_act.py | 243 +++++++++++++++++++
4 files changed, 806 insertions(+)
create mode 100644 python/ovs/flows/ofp.py
create mode 100644 python/ovs/flows/ofp_act.py
diff --git a/python/automake.mk b/python/automake.mk
index b7debfbd9..7b6d6596f 100644
--- a/python/automake.mk
+++ b/python/automake.mk
@@ -31,6 +31,8 @@ ovs_pyfiles = \
python/ovs/flows/flow.py \
python/ovs/flows/kv.py \
python/ovs/flows/list.py \
+ python/ovs/flows/ofp.py \
+ python/ovs/flows/ofp_act.py \
python/ovs/json.py \
python/ovs/jsonrpc.py \
python/ovs/ovsuuid.py \
diff --git a/python/ovs/flows/decoders.py b/python/ovs/flows/decoders.py
index 2f8e5bd0a..1462b0b9d 100644
--- a/python/ovs/flows/decoders.py
+++ b/python/ovs/flows/decoders.py
@@ -6,6 +6,7 @@ object.
"""
import netaddr
+import re
class Decoder(object):
@@ -414,3 +415,110 @@ class IPMask(Decoder):
def to_json(self):
return str(self)
+
+
+def decode_free_output(value):
+ """The value of the output action can be found free, i.e: without the
+ 'output' keyword. This decoder decodes its value when found this way."""
+ try:
+ return "output", {"port": int(value)}
+ except ValueError:
+ return "output", {"port": value.strip('"')}
+
+
+ipv4 = r"(?:\d{1,3}.?){3}\d{1,3}"
+ipv4_capture = r"({ipv4})".format(ipv4=ipv4)
+"""
+The following IPv6 regexp is a modified version of the one in:
+https://community.helpsystems.com/forums/intermapper/miscellaneous-topics/5acc4fcf-fa83-e511-80cf-0050568460e4?_ga=2.113564423.1432958022.1523882681-2146416484.1523557976
+
+It matches all these types of ipv6 addresses:
+fe80:0000:0000:0000:0204:61ff:fe9d:f156
+fe80:0:0:0:204:61ff:fe9d:f156
+fe80::204:61ff:fe9d:f156
+fe80:0000:0000:0000:0204:61ff:254.157.241.86
+fe80:0:0:0:0204:61ff:254.157.241.86
+fe80::204:61ff:254.157.241.86
+::1
+2001::
+fe80::
+"""
+ipv6 =
r"(?:(?:(?:[0-9A-Fa-f]{1,4}:){7}(?:[0-9A-Fa-f]{1,4}|:))|(?:(?:[0-9A-Fa-f]{1,4}:){6}(?::[0-9A-Fa-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9A-Fa-f]{1,4}:){5}(?:(?:(?::[0-9A-Fa-f]{1,4}){1,2})|:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9A-Fa-f]{1,4}:){4}(?:(?:(?::[0-9A-Fa-f]{1,4}){1,3})|(?:(?::[0-9A-Fa-f]{1,4})?:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9A-Fa-f]{1,4}:){3}(?:(?:(?::[0-9A-Fa-f]{1,4}){1,4})|(?:(?::[0-9A-Fa-f]{1,4}){0,2}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9A-Fa-f]{1,4}:){2}(?:(?:(?::[0-9A-Fa-f]{1,4}){1,5})|(?:(?::[0-9A-Fa-f]{1,4}){0,3}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9A-Fa-f]{1,4}:){1}(?:(?:(?::[0-9A-Fa-f]{1,4}){1,6})|(?:(?::[0-9A-Fa-f]{1,4}){0,4}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?::(?:(?:(?::[0-9A-Fa-f]{1,4}){1,7})|(?:(?::[0-9A-Fa-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))"
# noqa: E501
