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Diffstat (limited to 'vppapigen/pyvppapigen.py')
| -rwxr-xr-x | vppapigen/pyvppapigen.py | 291 |
1 files changed, 0 insertions, 291 deletions
diff --git a/vppapigen/pyvppapigen.py b/vppapigen/pyvppapigen.py deleted file mode 100755 index ea669517c3e..00000000000 --- a/vppapigen/pyvppapigen.py +++ /dev/null @@ -1,291 +0,0 @@ -#!/usr/bin/env python -# -# Copyright (c) 2016 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 __future__ import print_function -import argparse, sys, os, importlib, pprint - -parser = argparse.ArgumentParser(description='VPP Python API generator') -parser.add_argument('-i', '--input', action="store", dest="inputfile", type=argparse.FileType('r')) -parser.add_argument('-c', '--cfile', action="store") -args = parser.parse_args() - -# -# Read API definitions file into vppapidefs -# -exec(args.inputfile.read()) - -# https://docs.python.org/3/library/struct.html -format_struct = {'u8': 'B', - 'u16' : 'H', - 'u32' : 'I', - 'i32' : 'i', - 'u64' : 'Q', - 'f64' : 'd', - 'vl_api_fib_path_t' : 'IIBBBBBBBBBBBBBBBBBBBBB', - 'vl_api_ip4_fib_counter_t' : 'IBQQ', - 'vl_api_ip6_fib_counter_t' : 'QQBQQ', - 'vl_api_lisp_adjacency_t' : 'B' * 35 - }; -# -# NB: If new types are introduced in vpe.api, these must be updated. -# -type_size = {'u8': 1, - 'u16' : 2, - 'u32' : 4, - 'i32' : 4, - 'u64' : 8, - 'f64' : 8, - 'vl_api_fib_path_t' : 29, - 'vl_api_ip4_fib_counter_t' : 21, - 'vl_api_ip6_fib_counter_t' : 33, - 'vl_api_lisp_adjacency_t' : 35 -}; - -def eprint(*args, **kwargs): - print(*args, file=sys.stderr, **kwargs) - -def get_args(t): - argslist = [] - for i in t: - if i[1][0] == '_': - argslist.append(i[1][1:]) - else: - argslist.append(i[1]) - - return argslist - -def get_pack(f): - zeroarray = False - bytecount = 0 - pack = '' - elements = 1 - if len(f) is 3 or len(f) is 4: - size = type_size[f[0]] - bytecount += size * int(f[2]) - # Check if we have a zero length array - if f[2] == '0': - # If len 3 zero array - elements = 0; - pack += format_struct[f[0]] - bytecount = size - elif size == 1: - n = f[2] * size - pack += str(n) + 's' - else: - pack += format_struct[f[0]] * int(f[2]) - elements = int(f[2]) - else: - bytecount += type_size[f[0]] - pack += format_struct[f[0]] - return (pack, elements, bytecount) - - -''' -def get_reply_func(f): - if f['name']+'_reply' in func_name: - return func_name[f['name']+'_reply'] - if f['name'].find('_dump') > 0: - r = f['name'].replace('_dump','_details') - if r in func_name: - return func_name[r] - return None -''' - -def footer_print(): - print(''' -def msg_id_base_set(b): - global base - base = b - -import os -name = os.path.splitext(os.path.basename(__file__))[0] - ''') - print(u"plugin_register(name, api_func_table, api_name_to_id,", vl_api_version, ", msg_id_base_set)") - -def api_table_print(name, i): - msg_id_in = 'VL_API_' + name.upper() - fstr = name + '_decode' - print('api_func_table.append(' + fstr + ')') - print('api_name_to_id["' + msg_id_in + '"] =', i) - print('') - - -def encode_print(name, id, t): - args = get_args(t) - - if name.find('_dump') > 0: - multipart = True - else: - multipart = False - - if len(args) < 4: - print(u"def", name + "(async = False):") - else: - print(u"def", name + "(" + ', '.join(args[3:]) + ", async = False):") - print(u" global base") - print(u" context = get_context(base + " + id + ")") - - print(''' - results_prepare(context) - waiting_for_reply_set() - ''') - if multipart == True: - print(u" results_more_set(context)") - - t = list(t) - - # only the last field can be a variable-length-array - # it can either be 0, or a string - # first, deal with all the other fields - pack = '>' + ''.join([get_pack(f)[0] for f in t[:-1]]) - - # named variable-length-array - if len(t[-1]) == 4 and t[-1][2] == '0' and t[-1][3] == t[-2][1]: - print(u" vpp_api.write(pack('" + pack + "', base + " - + id + ", 0, context, " + ', '.join(args[3:-2] + ["len(" + args[-1] + ")"]) - + ") + " + args[-1] + ")") - - # unnamed variable-length-array - elif len(t[-1]) >= 3 and t[-1][2] == '0': - print(u" vpp_api.write(pack('" + pack + "', base + " + - id + ", 0, context, " + ', '.join(args[3:-1]) + ") + " - + args[-1] + ")") - - - # not a variable-length-array - else: - pack += get_pack(t[-1])[0] - print(u" vpp_api.write(pack('" + pack + "', base + " + id + - ", 0, context, " + ', '.join(args[3:]) + "))") - - if multipart == True: - print( - u" vpp_api.write(pack('>HII', VL_API_CONTROL_PING, 0, context))") - - print(''' - if not async: - results_event_wait(context, 5) - return results_get(context) - return context - ''') - -def get_normal_pack(t, i, pack, offset): - while t: - f = t.pop(0) - i += 1 - if len(f) >= 3: - return t, i, pack, offset, f - p, elements, size = get_pack(f) - pack += p - offset += size - return t, i, pack, offset, None - -def decode_print(name, t): - # - # Generate code for each element - # - print(u'def ' + name + u'_decode(msg):') - total = 0 - args = get_args(t) - print(u" n = namedtuple('" + name + "', '" + ', '.join(args) + "')") - print(u" res = []") - - pack = '>' - start = 0 - end = 0 - offset = 0 - t = list(t) - i = 0 - while t: - t, i, pack, offset, array = get_normal_pack(t, i, pack, offset) - if array: - p, elements, size = get_pack(array) - - # Byte string - if elements > 0 and type_size[array[0]] == 1: - pack += p - offset += size * elements - continue - - # Dump current pack string - if pack != '>': - print(u" tr = unpack_from('" + pack + "', msg[" + str(start) + ":])") - print(u" res.extend(list(tr))") - start += offset - pack = '>' - - if elements == 0: - # This has to be the last element - if len(array) == 3: - print(u" res.append(msg[" + str(offset) + ":])") - if len(t) > 0: - eprint('WARNING: Variable length array must be last element in message', name, array) - - continue - if size == 1 or len(p) == 1: - # Do it as a bytestring. - if p == 'B': - p = 's' - # XXX: Assume that length parameter is the previous field. Add validation. - print(u" c = res[" + str(i - 2) + "]") - print(u" tr = unpack_from('>' + str(c) + '" + p + "', msg[" + str(start) + ":])") - print(u" res.append(tr)") - continue - print(u" tr2 = []") - print(u" offset = " + str(total)) - print(u" for j in range(res[" + str(i - 2) + "]):") - print(u" tr2.append(unpack_from('>" + p + "', msg[" + str(start) + ":], offset))") - print(u" offset += " + str(size)) - print(u" res.append(tr2)") - continue - - # Missing something!! - print(u" tr = unpack_from('>" + p + "', msg[" + str(start) + ":])") - start += size - - print(u" res.append(tr)") - - if pack != '>': - print(u" tr = unpack_from('" + pack + "', msg[" + str(start) + ":])") - print(u" res.extend(list(tr))") - print(u" return n._make(res)") - print('') - -# -# Generate the main Python file -# -def main(): - print(''' -# -# AUTO-GENERATED FILE. PLEASE DO NOT EDIT. -# -from vpp_api_base import * -from struct import * -from collections import namedtuple -import vpp_api -api_func_table = [] -api_name_to_id = {} - ''') - - for i, a in enumerate(messages): - name = a[0] - encode_print(name, str(i), a[1:]) - decode_print(name, a[1:]) - api_table_print(name, i) - footer_print() - -if __name__ == "__main__": - main() |