blob: e88d02227ec12b39ef3d2a28e7216f3eb078215b [file] [log] [blame]
Zack Williams41513bf2018-07-07 20:08:35 -07001# Copyright 2017-present Open Networking Foundation
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7# http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
Nathan Knuth418fdc82016-09-16 22:51:15 -070014# Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior University
15# Copyright (c) 2011, 2012 Open Networking Foundation
16# Copyright (c) 2012, 2013 Big Switch Networks, Inc.
17# See the file LICENSE.pyloxi which should have been included in the source distribution
18# Automatically generated by LOXI from template util.py
19# Do not modify
20
21import struct
22import loxi
23import const
24import common
25import action
26import instruction
27import oxm
28import action_id
29import instruction_id
30import meter_band
31
32def pretty_mac(mac):
33 return ':'.join(["%02x" % x for x in mac])
34
35def pretty_ipv4(v):
36 return "%d.%d.%d.%d" % ((v >> 24) & 0xFF, (v >> 16) & 0xFF, (v >> 8) & 0xFF, v & 0xFF)
37
38def pretty_flags(v, flag_names):
39 set_flags = []
40 for flag_name in flag_names:
41 flag_value = getattr(const, flag_name)
42 if v & flag_value == flag_value:
43 set_flags.append(flag_name)
44 elif v & flag_value:
45 set_flags.append('%s&%#x' % (flag_name, v & flag_value))
46 v &= ~flag_value
47 if v:
48 set_flags.append("%#x" % v)
49 return '|'.join(set_flags) or '0'
50
51
52def pretty_port(v):
53 named_ports = [(k,v2) for (k,v2) in const.__dict__.iteritems() if k.startswith('OFPP_')]
54 for (k, v2) in named_ports:
55 if v == v2:
56 return k
57 return v
58
59def pack_port_no(value):
60 return struct.pack("!L", value)
61
62def unpack_port_no(reader):
63 return reader.read("!L")[0]
64
65def pack_fm_cmd(value):
66 return struct.pack("!B", value)
67
68def unpack_fm_cmd(reader):
69 return reader.read("!B")[0]
70
71def init_wc_bmap():
72 return 0
73
74def pack_wc_bmap(value):
75 return struct.pack("!Q", value)
76
77def unpack_wc_bmap(reader):
78 return reader.read("!Q")[0]
79
80def init_match_bmap():
81 return 0
82
83def pack_match_bmap(value):
84 return struct.pack("!Q", value)
85
86def unpack_match_bmap(reader):
87 return reader.read("!Q")[0]
88
89MASK64 = (1 << 64) - 1
90
91def pack_bitmap_128(value):
92 x = 0l
93 for y in value:
94 x |= 1 << y
95 return struct.pack("!QQ", (x >> 64) & MASK64, x & MASK64)
96
97def unpack_bitmap_128(reader):
98 hi, lo = reader.read("!QQ")
99 x = (hi << 64) | lo
100 i = 0
101 value = set()
102 while x != 0:
103 if x & 1 == 1:
104 value.add(i)
105 i += 1
106 x >>= 1
107 return value
108
109def pack_bitmap_512(value):
110 words = [0] * 8
111 for v in value:
112 assert v < 512
113 words[7-v/64] |= 1 << (v % 64)
114 return struct.pack("!8Q", *words)
115
116def unpack_bitmap_512(reader):
117 words = reader.read("!8Q")
118 x = 0l
119 for word in words:
120 x <<= 64
121 x |= word
122 i = 0
123 value = set()
124 while x != 0:
125 if x & 1 == 1:
126 value.add(i)
127 i += 1
128 x >>= 1
129 return value
130
131def pack_checksum_128(value):
132 return struct.pack("!QQ", (value >> 64) & MASK64, value & MASK64)
133
134def unpack_checksum_128(reader):
135 hi, lo = reader.read("!QQ")
136 return (hi << 64) | lo
sathishgbbb90992017-06-23 09:52:29 +0530137
138def bitmap_to_version(bitmaps):
139 versions = [i * 32 + shift
140 for i, bitmap in enumerate(bitmaps)
141 for shift in range(31) if bitmap & (1 << shift)]
142 return versions
143
144def verify_version_support(msg,version_list):
145 version_list_sup = bitmap_to_version([msg.elements[0].bitmaps[0].value])
146 return any(i in version_list_sup for i in version_list)