summaryrefslogtreecommitdiffstats
path: root/src/vpp-api/python/vpp_papi/vpp_format.py
blob: d020df961886ce28bc3e2cb4d10d97122b1279bf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
#
# Copyright (c) 2018 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

from socket import inet_pton, inet_ntop, AF_INET6, AF_INET


class VPPFormat(object):
    @staticmethod
    def format_vl_api_ip6_prefix_t(args):
        prefix, len = args.split('/')
        return {'prefix': {'address': inet_pton(AF_INET6, prefix)},
                'len': int(len)}

    @staticmethod
    def unformat_vl_api_ip6_prefix_t(args):
        return "{}/{}".format(inet_ntop(AF_INET6, args.prefix.address),
                              args.len)

    @staticmethod
    def format_vl_api_ip4_prefix_t(args):
        prefix, len = args.split('/')
        return {'prefix': {'address': inet_pton(AF_INET, prefix)},
                'len': int(len)}

    @staticmethod
    def unformat_vl_api_ip4_prefix_t(args):
        return "{}/{}".format(inet_ntop(AF_INET, args.prefix.address),
                              args.len)

    @staticmethod
    def format_vl_api_ip6_address_t(args):
        return {'address': inet_pton(AF_INET6, args)}

    @staticmethod
    def format_vl_api_ip4_address_t(args):
        return {'address': inet_pton(AF_INET, args)}

    @staticmethod
    def format_vl_api_address_t(args):
        try:
            return {'un': {'ip6': {'address': inet_pton(AF_INET6, args)}},
                    'af': int(1)}
        except Exception as e:
            return {'un': {'ip4': {'address': inet_pton(AF_INET, args)}},
                    'af': int(0)}

    @staticmethod
    def unformat_vl_api_address_t(arg):
        if arg.af == 1:
            return inet_ntop(AF_INET6, arg.un.ip6.address)
        if arg.af == 0:
            return inet_ntop(AF_INET, arg.un.ip4.address)
        raise

    @staticmethod
    def format_vl_api_prefix_t(args):
        prefix, len = args.split('/')
        return {'address': VPPFormat.format_vl_api_address_t(prefix),
                'address_length': int(len)}

    @staticmethod
    def unformat_vl_api_prefix_t(arg):
        if arg.address.af == 1:
            return "{}/{}".format(inet_ntop(AF_INET6,
                                            arg.address.un.ip6.address),
                                  arg.address_length)
        if arg.address.af == 0:
            return "{}/{}".format(inet_ntop(AF_INET,
                                            arg.address.un.ip4.address),
                                  arg.address_length)
        raise

    @staticmethod
    def format_u8(args):
        try:
            return int(args)
        except Exception as e:
            return args.encode()

    @staticmethod
    def format(typename, args):
        try:
            return getattr(VPPFormat, 'format_' + typename)(args)
        except AttributeError:
            # Default
            return (int(args))

    @staticmethod
    def unformat_bytes(args):
        try:
            return args.decode('utf-8')
        except Exception as e:
            return args

    @staticmethod
    def unformat_list(args):
        s = '['
        for f in args:
            t = type(f).__name__
            if type(f) is int:
                s2 = str(f)
            else:
                s2 = VPPFormat.unformat_t(t, f)
            s += '{} '.format(s2)
        return s[:-1] + ']'

    @staticmethod
    def unformat(args):
        s = ''
        return VPPFormat.unformat_t(type(args).__name__, args)
        '''
        for i, f in enumerate(args):
            print('F', f)
            t = type(f).__name__
            if type(f) is int:
                s2 = str(f)
            else:
                s2 = VPPFormat.unformat_t(t, f)
            s += '{} {} '.format(args._fields[i], s2)
        return s[:-1]
        '''

    @staticmethod
    def unformat_t(typename, args):
        try:
            return getattr(VPPFormat, 'unformat_' + typename)(args)
        except AttributeError:
            # Type without explicit override
            return VPPFormat.unformat(args)

        # Default handling
        return args