forked from acouzens/open5gs
reference asn1tostruct.py from EURECOM
This commit is contained in:
Sukchan Lee
parent
477861807e
commit
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#
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# Copyright (c) 2015, EURECOM (www.eurecom.fr)
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and documentation are those
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# of the authors and should not be interpreted as representing official policies,
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# either expressed or implied, of the FreeBSD Project.
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import re, os, sys, string
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import datetime
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import getopt
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import getpass
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version = "1.0.2"
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lines = ""
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iesDefs = {}
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ieofielist = {}
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outdir = './'
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filenames = []
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verbosity = 0
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prefix = ""
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FAIL = '\033[91m'
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WARN = '\033[93m'
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ENDC = '\033[0m'
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fileprefix = ""
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fileprefix_first_upper = ""
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def printFail(string):
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sys.stderr.write(FAIL + string + ENDC + "\n")
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def printWarning(string):
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print WARN + string + ENDC
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def printDebug(string):
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if verbosity > 0:
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print string
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def outputHeaderToFile(f, filename):
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now = datetime.datetime.now()
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f.write("""/*
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* Copyright (c) 2015, EURECOM (www.eurecom.fr)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are those
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* of the authors and should not be interpreted as representing official policies,
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* either expressed or implied, of the FreeBSD Project.
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*/
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""")
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f.write("/*******************************************************************************\n")
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f.write(" * This file had been created by asn1tostruct.py script v%s\n" % (version))
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f.write(" * Please do not modify this file but regenerate it via script.\n")
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f.write(" * Created on: %s by %s\n * from %s\n" % (str(now), getpass.getuser(), filenames))
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f.write(" ******************************************************************************/\n")
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def lowerFirstCamelWord(word):
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""" puts the first word in a CamelCase Word in lowercase.
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I.e. CustomerID becomes customerID, XMLInfoTest becomes xmlInfoTest
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"""
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newstr = ''
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swapped = word.swapcase()
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idx = 0
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# if it's all-caps, return an all-lowered version
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lowered = word.lower()
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if swapped == lowered:
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return lowered
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for c in swapped:
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if c in string.lowercase:
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newstr += c
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idx += 1
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else:
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break
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if idx < 2:
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newstr += word[idx:]
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else:
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newstr = newstr[:-1]+ word[idx-1:]
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return newstr
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def usage():
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print "Python parser for asn1 v%s" % (version)
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print "Usage: python asn1tostruct.py [options]"
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print "Available options:"
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print "-d Enable script debug"
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print "-f [file] Input file to parse"
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print "-o [dir] Output files to given directory"
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print "-h Print this help and return"
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try:
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opts, args = getopt.getopt(sys.argv[1:], "df:ho:", ["debug", "file", "help", "outdir"])
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except getopt.GetoptError as err:
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# print help information and exit:
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usage()
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sys.exit(2)
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for o, a in opts:
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if o in ("-f", "--file"):
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filenames.append(a)
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if o in ("-d", "--debug"):
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verbosity = 1
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if o in ("-o", "--outdir"):
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outdir = a
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if outdir.rfind('/') != len(outdir):
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outdir += '/'
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if o in ("-h", "--help"):
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usage()
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sys.exit(2)
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for filename in filenames:
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file = open(filename, 'r')
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for line in file:
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# Removing any comment
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if line.find('--') >= 0:
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line = line[:line.find('--')]
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# Removing any carriage return
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lines += re.sub('\r', '', line)
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for m in re.findall(r'([a-zA-Z0-9-]+)\s*::=\s+SEQUENCE\s+\(\s*SIZE\s*\(\s*\d+\s*\.\.\s*[0-9a-zA-Z-]+\s*\)\s*\)\s*OF\s+[a-zA-Z-]+\s*\{\s*\{\s*([0-9a-zA-Z-]+)\s*\}\s*\}', lines, re.MULTILINE):
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ieofielist[m[0]] = m[1]
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for m in re.findall(r'([a-zA-Z0-9-]+)\s*::=\s+E-RAB-IE-ContainerList\s*\{\s*\{\s*([a-zA-Z0-9-]+)\s*\}\s*\}', lines, re.MULTILINE):
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ieofielist[m[0]] = m[1]
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for i in re.findall(r'([a-zA-Z0-9-]+)\s+([A-Z0-9-]+)\s*::=\s*\{\s+([\,\|\{\}\t\n\.{3}\ \-a-zA-Z0-9]+)\s+}\n', lines, re.MULTILINE):
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ies = []
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maxLength = 0
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# TODO: handle extensions
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if i[1].find('EXTENSION') >= 0:
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continue
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if fileprefix == "":
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fileprefix = i[1][:i[1].find('-')].lower()
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for j in re.findall(r'\s*\{\s*([a-zA-Z0-9-\ \t]+)\s*\}\s*[\|,]*', i[2], re.MULTILINE):
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for k in re.findall(r'ID\s*([a-zA-Z0-9\-]+)\s*CRITICALITY\s*([a-zA-Z0-9\-]+)\s+[A-Z]+\s+([a-zA-Z0-9\-]+)\s*PRESENCE\s*([a-zA-Z0-9\-]+)', j, re.MULTILINE):
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printDebug("Got new ie for message " + i[0] + ": " + str(k))
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if len(k[2]) > maxLength:
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maxLength = len(k[2])
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ies.append(k)
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if len(ies) > 0:
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iesDefs[i[0]] = { "length": maxLength, "ies": ies }
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else:
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printWarning("Didn't find any information element for message: " + i[0])
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if len(iesDefs) == 0:
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printFail("No Information Element parsed, exiting")
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sys.exit(0)
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fileprefix_first_upper = fileprefix[0].upper() + fileprefix[1:]
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f = open(outdir + fileprefix + '_ies_defs.h', 'w')
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outputHeaderToFile(f, filename)
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f.write("#include \"%s_common.h\"\n\n" % (fileprefix))
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f.write("#ifndef %s_IES_DEFS_H_\n#define %s_IES_DEFS_H_\n\n" % (fileprefix.upper(), fileprefix.upper()))
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f.write("/* Define the version of script used to generate this file */\n")
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f.write("#define %s_SCRIPT_VERSION (%s)\n\n" % (fileprefix.upper(), re.sub('\.', '', version)))
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for key in iesDefs:
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if key not in ieofielist.values():
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continue
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for (i, j) in ieofielist.items():
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if j == key:
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break
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f.write("typedef struct %sIEs_s {\n" % (re.sub('-', '_', i)))
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f.write(" A_SEQUENCE_OF(struct %s_s) %s;\n" % (re.sub('IEs', '', re.sub('-', '_', ieofielist[i])), lowerFirstCamelWord(re.sub('IEs', '', re.sub('-', '_', ieofielist[i])))))
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f.write("} %sIEs_t;\n\n" % (re.sub('-', '_', i)))
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for key in iesDefs:
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keyupperunderscore = re.sub('-', '_', key.upper())
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keylowerunderscore = re.sub('-', '_', key.lower())
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shift = 0
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if len(iesDefs[key]["ies"]) == 0:
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continue
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# Presence mask
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for ie in iesDefs[key]["ies"]:
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ieupperunderscore = re.sub('-', '_', re.sub('id-', '', ie[0])).upper()
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if ie[3] == "optional" or ie[3] == "conditional":
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f.write("#define {0:<{pad}} {1}\n".format("%s_%s_PRESENT" % (keyupperunderscore, ieupperunderscore), "(1 << %d)" % shift,
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pad=iesDefs[key]["length"] + len(keyupperunderscore) + 9))
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shift += 1
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if (shift > 0):
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f.write("\n")
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f.write("typedef struct %s_s {\n" % (re.sub('-', '_', key)))
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if (shift > 0):
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f.write(" {0:<{pad}} {1};\n".format("uint16_t", "presenceMask", pad=iesDefs[key]["length"] + 2))
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for ie in iesDefs[key]["ies"]:
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ieunderscore = re.sub('-', '_', ie[2])
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iename = re.sub('id-', '', ie[0])
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ienameunderscore = lowerFirstCamelWord(re.sub('-', '_', iename))
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if ie[2] in ieofielist:
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f.write(" %sIEs_t %s;" % (re.sub('-', '_', ie[2]), ienameunderscore))
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else:
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f.write(" {0:<{pad}} {1};".format("%s_t" % ieunderscore, ienameunderscore, pad=iesDefs[key]["length"] + 2))
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if ie[3] == "optional":
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f.write(" ///< Optional field")
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elif ie[3] == "conditional":
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f.write(" ///< Conditional field")
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f.write("\n")
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f.write("} %s_t;\n\n" % (re.sub('-', '_', key)))
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f.write("typedef struct %s_message_s {\n" % (fileprefix))
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f.write(" %s_ProcedureCode_t procedureCode;\n" % (fileprefix_first_upper))
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f.write(" %s_Criticality_t criticality;\n" % (fileprefix_first_upper))
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f.write(" uint8_t direction;\n")
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f.write(" union {\n")
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messageList = iesDefs.keys()
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messageList.sort()
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for message in messageList:
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if message in ieofielist.values():
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continue
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if len(iesDefs[message]["ies"]) == 0:
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continue
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f.write(" %s_t %s;\n" % (re.sub('-', '_', message), lowerFirstCamelWord(re.sub('-', '_', message))))
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f.write(" } msg;\n")
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f.write("} %s_message;\n\n" % (fileprefix))
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for key in iesDefs:
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if key in ieofielist.values():
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continue
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structName = re.sub('ies', '', key)
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asn1cStruct = re.sub('-', '_', re.sub('IEs', '', re.sub('-IEs', '', key)))
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asn1cStruct = re.sub('Item', 'List', asn1cStruct)
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keylowerunderscore = re.sub('-', '_', key.lower())
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firstlower = re.sub('Item', 'List', re.sub('enb', 'eNB', lowerFirstCamelWord(asn1cStruct)))
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f.write("/** \\brief Decode function for %s ies.\n" % (key))
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if len(iesDefs[key]["ies"]) != 0:
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f.write(" * \\param %s Pointer to ASN1 structure in which data will be stored\n" % (lowerFirstCamelWord(re.sub('-', '_', key))))
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f.write(" * \\param any_p Pointer to the ANY value to decode.\n")
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f.write(" **/\n")
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f.write("int %s_decode_%s(\n" % (fileprefix, keylowerunderscore))
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if len(iesDefs[key]["ies"]) != 0:
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f.write(" %s_t *%s,\n" % (re.sub('-', '_', key), lowerFirstCamelWord(re.sub('-', '_', key))))
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f.write(" ANY_t *any_p);\n\n")
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if len(iesDefs[key]["ies"]) == 0:
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continue
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f.write("/** \\brief Encode function for %s ies.\n" % (key))
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f.write(" * \\param %s Pointer to the ASN1 structure.\n" % (firstlower))
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f.write(" * \\param %s Pointer to the IES structure.\n" % (lowerFirstCamelWord(re.sub('-', '_', key))))
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f.write(" **/\n")
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f.write("int %s_encode_%s(\n" % (fileprefix, re.sub('-', '_', structName.lower())))
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f.write(" %s_t *%s,\n" % (asn1cStruct, firstlower))
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f.write(" %s_t *%s);\n\n" % (re.sub('-', '_', key), lowerFirstCamelWord(re.sub('-', '_', key))))
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for key in iesDefs:
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if key not in ieofielist.values():
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continue
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asn1cStruct = re.sub('-', '_', re.sub('IEs', '', key))
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asn1cStruct = re.sub('Item', 'List', asn1cStruct)
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firstlower = re.sub('Item', 'List', re.sub('enb', 'eNB', lowerFirstCamelWord(asn1cStruct)))
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f.write("/** \\brief Encode function for %s ies.\n" % (key))
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f.write(" * \\param %s Pointer to the ASN1 structure.\n" % (firstlower))
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f.write(" * \\param %s Pointer to the IES structure.\n" % (lowerFirstCamelWord(re.sub('-', '_', key))))
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f.write(" **/\n")
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f.write("int %s_encode_%s(\n" % (fileprefix, firstlower.lower()))
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f.write(" %s_t *%s,\n" % (asn1cStruct, firstlower))
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f.write(" %sIEs_t *%sIEs);\n\n" % (asn1cStruct, firstlower))
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f.write("/** \\brief Decode function for %s ies.\n" % (key))
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f.write(" * \\param any_p Pointer to the ANY value to decode.\n")
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f.write(" * \\param callback Callback function called when any_p is successfully decoded.\n")
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f.write(" **/\n")
|
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f.write("int %s_decode_%s(\n" % (fileprefix, firstlower.lower()))
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f.write(" %sIEs_t *%sIEs,\n" % (asn1cStruct, firstlower))
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f.write(" %s_t *%s);\n\n" % (asn1cStruct, lowerFirstCamelWord(asn1cStruct)))
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for key in iesDefs:
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asn1cStruct = re.sub('-', '_', re.sub('IEs', '', key))
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asn1cStruct = re.sub('Item', 'List', asn1cStruct)
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firstlower = re.sub('Item', 'List', re.sub('enb', 'eNB', lowerFirstCamelWord(asn1cStruct)))
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if key in ieofielist.values():
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f.write("/** \\brief Display %s encapsulated IE using XER encoding.\n" % (asn1cStruct))
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f.write(" * \\param %s Pointer to the IES structure.\n" % (lowerFirstCamelWord(re.sub('-', '_', key))))
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f.write(" * \\param file File descriptor to write output.\n")
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f.write(" **/\n")
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f.write("asn_enc_rval_t %s_xer_print_%s(\n" % (fileprefix, re.sub('item', 'list', firstlower.lower())))
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f.write(" asn_app_consume_bytes_f *cb,\n")
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||||
f.write(" void *app_key,\n")
|
||||
f.write(" %sIEs_t *%sIEs);\n\n" % (re.sub('item', 'list', asn1cStruct), firstlower))
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||||
else:
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f.write("/** \\brief Display %s message using XER encoding.\n" % (asn1cStruct))
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||||
f.write(" * \\param message_p Pointer to root message.\n")
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||||
f.write(" * \\param file File descriptor to write output.\n")
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||||
f.write(" **/\n")
|
||||
f.write("asn_enc_rval_t %s_xer_print_%s(\n" % (fileprefix, firstlower.lower()))
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f.write(" asn_app_consume_bytes_f *cb,\n")
|
||||
f.write(" void *app_key,\n")
|
||||
f.write(" %s_message *message_p);\n\n" % (fileprefix))
|
||||
|
||||
f.write("int %s_xer__print2sp(const void *buffer, size_t size, void *app_key);\n\n" % (fileprefix.lower()))
|
||||
f.write("int %s_xer__print2fp(const void *buffer, size_t size, void *app_key);\n\n" % (fileprefix.lower()))
|
||||
f.write("extern size_t %s_string_total_size;\n\n" % (fileprefix.lower()))
|
||||
f.write("#endif /* %s_IES_DEFS_H_ */\n\n" % (fileprefix.upper()))
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||||
|
||||
#Generate Decode functions
|
||||
f = open(outdir + fileprefix + '_decoder.c', 'w')
|
||||
outputHeaderToFile(f, filename)
|
||||
f.write("#include \"%s_common.h\"\n#include \"%s_ies_defs.h\"\n#include \"log.h\"\n\n" % (fileprefix, fileprefix))
|
||||
for key in iesDefs:
|
||||
if key in ieofielist.values():
|
||||
continue
|
||||
structName = re.sub('ies', '', key)
|
||||
asn1cStruct = re.sub('-', '_', re.sub('IEs', '', key))
|
||||
if asn1cStruct.rfind('_') == len(asn1cStruct) - 1:
|
||||
asn1cStruct = asn1cStruct[:-1]
|
||||
asn1cStruct = re.sub('Item', 'List', asn1cStruct)
|
||||
ielistname = re.sub('UE', 'ue', asn1cStruct)
|
||||
ielistnamefirstlower = ielistname[:1].lower() + ielistname[1:]
|
||||
asn1cStructfirstlower = asn1cStruct[:1].lower() + asn1cStruct[1:]
|
||||
keyName = re.sub('-', '_', key)
|
||||
keyupperunderscore = keyName.upper()
|
||||
firstlower = re.sub('Item', 'List', re.sub('enb', 'eNB', lowerFirstCamelWord(asn1cStruct)))
|
||||
|
||||
iesaccess = ""
|
||||
if key not in ieofielist.values():
|
||||
iesaccess = "%s_ies." % (firstlower)
|
||||
|
||||
f.write("int %s_decode_%s(\n" % (fileprefix, re.sub('-', '_', structName.lower())))
|
||||
if len(iesDefs[key]["ies"]) != 0:
|
||||
f.write(" %s_t *%s,\n" % (re.sub('-', '_', key), lowerFirstCamelWord(re.sub('-', '_', key))))
|
||||
f.write(" ANY_t *any_p) {\n\n")
|
||||
|
||||
f.write(" %s_t %s;\n %s_t *%s_p = &%s;\n" % (asn1cStruct, asn1cStructfirstlower, asn1cStruct, asn1cStructfirstlower, asn1cStructfirstlower))
|
||||
f.write(" int i, decoded = 0;\n")
|
||||
if len(iesDefs[key]["ies"]) != 0:
|
||||
f.write(" int tempDecoded = 0;\n")
|
||||
|
||||
f.write(" assert(any_p != NULL);\n")
|
||||
if len(iesDefs[key]["ies"]) != 0:
|
||||
f.write(" assert(%s != NULL);\n\n" % (lowerFirstCamelWord(re.sub('-', '_', key))))
|
||||
|
||||
f.write(" OAILOG_DEBUG (LOG_%s, \"Decoding message %s (%%s:%%d)\\n\", __FILE__, __LINE__);\n\n" % (fileprefix.upper(), re.sub('-', '_', keyName)))
|
||||
f.write(" ANY_to_type_aper(any_p, &asn_DEF_%s, (void**)&%s_p);\n\n" % (asn1cStruct, asn1cStructfirstlower))
|
||||
f.write(" for (i = 0; i < %s_p->%slist.count; i++) {\n" % (asn1cStructfirstlower, iesaccess))
|
||||
f.write(" %s_IE_t *ie_p;\n" % (fileprefix[0].upper() + fileprefix[1:]))
|
||||
f.write(" ie_p = %s_p->%slist.array[i];\n" % (asn1cStructfirstlower, iesaccess))
|
||||
f.write(" switch(ie_p->id) {\n")
|
||||
for ie in iesDefs[key]["ies"]:
|
||||
iename = re.sub('id-', '', ie[0])
|
||||
ienameunderscore = lowerFirstCamelWord(re.sub('-', '_', iename))
|
||||
ienameunderscorefirstlower = lowerFirstCamelWord(ienameunderscore)
|
||||
ietypesubst = re.sub('-', '', ie[2])
|
||||
ietypeunderscore = re.sub('-', '_', ie[2])
|
||||
ieupperunderscore = re.sub('-', '_', re.sub('id-', '', ie[0])).upper()
|
||||
|
||||
if ie[3] == "optional":
|
||||
f.write(" /* Optional field */\n")
|
||||
elif ie[3] == "conditional":
|
||||
f.write(" /* Conditional field */\n")
|
||||
f.write(" case %s_ProtocolIE_ID_%s:\n" % (fileprefix_first_upper, re.sub('-', '_', ie[0])))
|
||||
f.write(" {\n")
|
||||
f.write(" %s_t *%s_p = NULL;\n" % (ietypeunderscore, lowerFirstCamelWord(ietypesubst)))
|
||||
if ie[3] != "mandatory":
|
||||
f.write(" %s->presenceMask |= %s_%s_PRESENT;\n" % (lowerFirstCamelWord(re.sub('-', '_', key)), keyupperunderscore, ieupperunderscore))
|
||||
f.write(" tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_%s, (void**)&%s_p);\n" % (ietypeunderscore, lowerFirstCamelWord(ietypesubst)))
|
||||
f.write(" if (tempDecoded < 0 || %s_p == NULL) {\n" % (lowerFirstCamelWord(ietypesubst)))
|
||||
f.write(" OAILOG_ERROR (LOG_%s, \"Decoding of IE %s failed\\n\");\n" % (fileprefix.upper(), ienameunderscore))
|
||||
f.write(" if (%s_p)\n" % (lowerFirstCamelWord(ietypesubst)))
|
||||
f.write(" ASN_STRUCT_FREE(asn_DEF_%s, %s_p);\n" % (ietypeunderscore, lowerFirstCamelWord(ietypesubst)))
|
||||
f.write(" return -1;\n")
|
||||
f.write(" }\n")
|
||||
f.write(" decoded += tempDecoded;\n")
|
||||
f.write(" if (asn1_xer_print)\n")
|
||||
f.write(" xer_fprint(stdout, &asn_DEF_%s, %s_p);\n" % (ietypeunderscore, lowerFirstCamelWord(ietypesubst)))
|
||||
if ie[2] in ieofielist.keys():
|
||||
f.write(" if (%s_decode_%s(&%s->%s, %s_p) < 0) {\n" % (fileprefix, ietypeunderscore.lower(), lowerFirstCamelWord(re.sub('-', '_', key)), ienameunderscore, lowerFirstCamelWord(ietypesubst)))
|
||||
f.write(" OAILOG_ERROR (LOG_%s, \"Decoding of encapsulated IE %s failed\\n\");\n" % (fileprefix.upper(), lowerFirstCamelWord(ietypesubst)))
|
||||
f.write(" ASN_STRUCT_FREE(asn_DEF_%s, %s_p);\n" % (ietypeunderscore, lowerFirstCamelWord(ietypesubst)))
|
||||
f.write(" }\n")
|
||||
else:
|
||||
f.write(" memcpy(&%s->%s, %s_p, sizeof(%s_t));\n" % (lowerFirstCamelWord(re.sub('-', '_', key)), ienameunderscore, lowerFirstCamelWord(ietypesubst), ietypeunderscore))
|
||||
#f.write(" ASN_STRUCT_FREE(asn_DEF_%s, %s_p);\n" % (ietypeunderscore, lowerFirstCamelWord(ietypesubst)))
|
||||
f.write(" } break;\n")
|
||||
f.write(" default:\n")
|
||||
f.write(" OAILOG_ERROR (LOG_%s, \"Unknown protocol IE id (%%d) for message %s\\n\", (int)ie_p->id);\n" % (fileprefix.upper(), re.sub('-', '_', structName.lower())))
|
||||
f.write(" return -1;\n")
|
||||
f.write(" }\n")
|
||||
f.write(" }\n")
|
||||
f.write(" return decoded;\n")
|
||||
f.write("}\n\n")
|
||||
|
||||
for key in iesDefs:
|
||||
if key not in ieofielist.values():
|
||||
continue
|
||||
|
||||
keyname = re.sub('IEs', '', re.sub('Item', 'List', key))
|
||||
|
||||
f.write("int %s_decode_%s(\n" % (fileprefix, re.sub('-', '_', keyname).lower()))
|
||||
f.write(" %sIEs_t *%sIEs,\n" % (re.sub('-', '_', keyname), lowerFirstCamelWord(re.sub('-', '_', keyname))))
|
||||
f.write(" %s_t *%s) {\n\n" % (re.sub('-', '_', keyname), lowerFirstCamelWord(re.sub('-', '_', keyname))))
|
||||
f.write(" int i, decoded = 0;\n")
|
||||
f.write(" int tempDecoded = 0;\n\n")
|
||||
|
||||
f.write(" assert(%s != NULL);\n" % (lowerFirstCamelWord(re.sub('-', '_', keyname))));
|
||||
f.write(" assert(%sIEs != NULL);\n\n" % (lowerFirstCamelWord(re.sub('-', '_', keyname))));
|
||||
|
||||
f.write(" for (i = 0; i < %s->list.count; i++) {\n" % (lowerFirstCamelWord(re.sub('-', '_', keyname))))
|
||||
f.write(" %s_IE_t *ie_p = %s->list.array[i];\n" % (fileprefix[0].upper() + fileprefix[1:], lowerFirstCamelWord(re.sub('-', '_', keyname))))
|
||||
f.write(" switch (ie_p->id) {\n")
|
||||
for ie in iesDefs[key]["ies"]:
|
||||
iename = re.sub('id-', '', ie[0])
|
||||
ienameunderscore = lowerFirstCamelWord(re.sub('-', '_', iename))
|
||||
f.write(" case %s_ProtocolIE_ID_%s:\n" % (fileprefix_first_upper, re.sub('-', '_', ie[0])))
|
||||
f.write(" {\n")
|
||||
f.write(" %s_t *%s_p = NULL;\n" % (re.sub('-', '_', ie[2]), lowerFirstCamelWord(re.sub('-', '', ie[2]))))
|
||||
f.write(" tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_%s, (void**)&%s_p);\n" % (re.sub('-', '_', ie[2]), lowerFirstCamelWord(re.sub('-', '', ie[2]))))
|
||||
f.write(" if (tempDecoded < 0 || %s_p == NULL) {\n" % (lowerFirstCamelWord(re.sub('-', '', ie[2]))))
|
||||
f.write(" OAILOG_ERROR (LOG_%s, \"Decoding of IE %s for message %s failed\\n\");\n" % (fileprefix.upper(), ienameunderscore, re.sub('-', '_', keyname)))
|
||||
f.write(" if (%s_p)\n" % (lowerFirstCamelWord(re.sub('-', '', ie[2]))))
|
||||
#f.write(" free(%s_p);\n" % (lowerFirstCamelWord(re.sub('-', '', ie[2]))))
|
||||
f.write(" ASN_STRUCT_FREE(asn_DEF_%s, %s_p);\n" % (re.sub('-', '_', ie[2]), lowerFirstCamelWord(re.sub('-', '', ie[2]))))
|
||||
f.write(" return -1;\n")
|
||||
f.write(" }\n")
|
||||
f.write(" decoded += tempDecoded;\n")
|
||||
f.write(" if (asn1_xer_print)\n")
|
||||
f.write(" xer_fprint(stdout, &asn_DEF_%s, %s_p);\n" % (re.sub('-', '_', ie[2]), lowerFirstCamelWord(re.sub('-', '', ie[2]))))
|
||||
f.write(" ASN_SEQUENCE_ADD(&%sIEs->%s, %s_p);\n" % (lowerFirstCamelWord(re.sub('-', '_', keyname)),
|
||||
re.sub('IEs', '', lowerFirstCamelWord(re.sub('-', '_', key))), lowerFirstCamelWord(re.sub('-', '', ie[2]))))
|
||||
f.write(" } break;\n")
|
||||
f.write(" default:\n")
|
||||
f.write(" OAILOG_ERROR (LOG_%s, \"Unknown protocol IE id (%%d) for message %s\\n\", (int)ie_p->id);\n" % (fileprefix.upper(), re.sub('-', '_', structName.lower())))
|
||||
f.write(" return -1;\n")
|
||||
f.write(" }\n")
|
||||
f.write(" }\n")
|
||||
f.write(" return decoded;\n")
|
||||
f.write("}\n\n")
|
||||
|
||||
|
||||
#Generate IES Encode functions
|
||||
f = open(outdir + fileprefix + '_encoder.c', 'w')
|
||||
outputHeaderToFile(f,filename)
|
||||
f.write("#include \"%s_common.h\"\n" % (fileprefix))
|
||||
f.write("#include \"%s_ies_defs.h\"\n\n" % (fileprefix))
|
||||
for key in iesDefs:
|
||||
if key in ieofielist.values():
|
||||
continue
|
||||
|
||||
structName = re.sub('ies', '', key)
|
||||
asn1cStruct = re.sub('-', '_', re.sub('IEs', '', key))
|
||||
asn1cStruct = re.sub('Item', 'List', asn1cStruct)
|
||||
if asn1cStruct.rfind('_') == len(asn1cStruct) - 1:
|
||||
asn1cStruct = asn1cStruct[:-1]
|
||||
asn1cStructfirstlower = asn1cStruct[:1].lower() + asn1cStruct[1:]
|
||||
firstwordlower = re.sub('Item', 'List', re.sub('enb', 'eNB', lowerFirstCamelWord(asn1cStruct)))
|
||||
|
||||
iesaccess = ""
|
||||
if key not in ieofielist.values():
|
||||
iesaccess = "%s_ies." % (firstwordlower)
|
||||
|
||||
keyName = re.sub('-', '_', key)
|
||||
keyupperunderscore = keyName.upper()
|
||||
# No IE to encode...
|
||||
if len(iesDefs[key]["ies"]) == 0:
|
||||
continue
|
||||
|
||||
f.write("int %s_encode_%s(\n" % (fileprefix, re.sub('-', '_', structName.lower())))
|
||||
f.write(" %s_t *%s,\n" % (asn1cStruct, firstwordlower))
|
||||
f.write(" %s_t *%s) {\n\n" % (re.sub('-', '_', key), lowerFirstCamelWord(re.sub('-', '_', key))))
|
||||
|
||||
f.write(" %s_IE_t *ie;\n\n" % (fileprefix_first_upper))
|
||||
|
||||
f.write(" assert(%s != NULL);\n" % (firstwordlower));
|
||||
f.write(" assert(%s != NULL);\n\n" % (lowerFirstCamelWord(re.sub('-', '_', key))));
|
||||
|
||||
for ie in iesDefs[key]["ies"]:
|
||||
iename = re.sub('-', '_', re.sub('id-', '', ie[0]))
|
||||
ienameunderscore = re.sub('-', '_', iename)
|
||||
ienamefirstwordlower = lowerFirstCamelWord(iename)
|
||||
ieupperunderscore = re.sub('-', '_', re.sub('id-', '', ie[0])).upper()
|
||||
ietypeunderscore = re.sub('-', '_', ie[2])
|
||||
|
||||
if ie[3] != "mandatory":
|
||||
if ie[3] == "optional":
|
||||
f.write(" /* Optional field */\n")
|
||||
elif ie[3] == "conditional":
|
||||
f.write(" /* Conditional field */\n")
|
||||
f.write(" if (%s->presenceMask & %s_%s_PRESENT) {\n" % (lowerFirstCamelWord(re.sub('-', '_', key)), keyupperunderscore, ieupperunderscore))
|
||||
#f.write(" == %s_%s_PRESENT) {\n" % (keyupperunderscore, ieupperunderscore))
|
||||
f.write(" if ((ie = %s_new_ie(%s_ProtocolIE_ID_%s,\n" % (fileprefix, fileprefix_first_upper, re.sub('-', '_', ie[0])))
|
||||
f.write(" %s_Criticality_%s,\n" % (fileprefix_first_upper, ie[1]))
|
||||
f.write(" &asn_DEF_%s,\n" % (ietypeunderscore))
|
||||
f.write(" &%s->%s)) == NULL) {\n" % (lowerFirstCamelWord(re.sub('-', '_', key)), ienamefirstwordlower))
|
||||
f.write(" return -1;\n")
|
||||
f.write(" }\n")
|
||||
f.write(" ASN_SEQUENCE_ADD(&%s->%slist, ie);\n" % (firstwordlower, iesaccess))
|
||||
f.write(" }\n\n")
|
||||
else:
|
||||
if ie[2] in ieofielist.keys():
|
||||
f.write(" %s_t %s;\n\n" % (ietypeunderscore, ienamefirstwordlower))
|
||||
f.write(" memset(&%s, 0, sizeof(%s_t));\n" % (ienamefirstwordlower, ietypeunderscore))
|
||||
f.write("\n")
|
||||
f.write(" if (%s_encode_%s(&%s, &%s->%s) < 0) return -1;\n" % (fileprefix, ietypeunderscore.lower(), ienamefirstwordlower, lowerFirstCamelWord(re.sub('-', '_', key)), ienamefirstwordlower))
|
||||
f.write(" if ((ie = %s_new_ie(%s_ProtocolIE_ID_%s,\n" % (fileprefix, fileprefix_first_upper, re.sub('-', '_', ie[0])))
|
||||
f.write(" %s_Criticality_%s,\n" % (fileprefix_first_upper, ie[1]))
|
||||
f.write(" &asn_DEF_%s,\n" % (ietypeunderscore))
|
||||
if ie[2] in ieofielist.keys():
|
||||
f.write(" &%s)) == NULL) {\n" % (ienamefirstwordlower))
|
||||
else:
|
||||
f.write(" &%s->%s)) == NULL) {\n" % (lowerFirstCamelWord(re.sub('-', '_', key)), ienamefirstwordlower))
|
||||
f.write(" return -1;\n")
|
||||
f.write(" }\n")
|
||||
f.write(" ASN_SEQUENCE_ADD(&%s->%slist, ie);\n\n" % (firstwordlower, iesaccess))
|
||||
if ie[2] in ieofielist.keys():
|
||||
f.write(" /* Free any dynamic allocation that is no more used */\n")
|
||||
f.write(" ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_%s, &%s);\n\n" % (ietypeunderscore, ienamefirstwordlower))
|
||||
|
||||
f.write(" return 0;\n")
|
||||
f.write("}\n\n")
|
||||
|
||||
for (key, value) in iesDefs.items():
|
||||
if key not in ieofielist.values():
|
||||
continue
|
||||
|
||||
ie = value["ies"][0]
|
||||
ietypeunderscore = re.sub('-', '_', ie[2])
|
||||
asn1cStruct = re.sub('-', '_', re.sub('IEs', '', re.sub('-IEs', '', key)))
|
||||
asn1cStruct = re.sub('Item', 'List', asn1cStruct)
|
||||
firstwordlower = re.sub('Item', 'List', re.sub('enb', 'eNB', lowerFirstCamelWord(asn1cStruct)))
|
||||
|
||||
for (i, j) in ieofielist.items():
|
||||
if j == key:
|
||||
break
|
||||
f.write("int %s_encode_%s(\n" % (fileprefix, re.sub('-', '_', i).lower()))
|
||||
f.write(" %s_t *%s,\n" % (asn1cStruct, firstwordlower))
|
||||
f.write(" %sIEs_t *%sIEs) {\n\n" % (re.sub('-', '_', i), lowerFirstCamelWord(re.sub('-', '_', i))))
|
||||
f.write(" int i;\n")
|
||||
|
||||
f.write(" %s_IE_t *ie;\n\n" % (fileprefix_first_upper))
|
||||
|
||||
f.write(" assert(%s != NULL);\n" % (firstwordlower));
|
||||
f.write(" assert(%sIEs != NULL);\n\n" % (lowerFirstCamelWord(re.sub('-', '_', i))));
|
||||
|
||||
f.write(" for (i = 0; i < %sIEs->%s.count; i++) {\n" % (firstwordlower, re.sub('IEs', '', lowerFirstCamelWord(re.sub('-', '_', key)))))
|
||||
f.write(" if ((ie = %s_new_ie(%s_ProtocolIE_ID_%s,\n" % (fileprefix, fileprefix_first_upper, re.sub('-', '_', ie[0])))
|
||||
f.write(" %s_Criticality_%s,\n" % (fileprefix_first_upper, ie[1]))
|
||||
f.write(" &asn_DEF_%s,\n" % (ietypeunderscore))
|
||||
f.write(" %sIEs->%s.array[i])) == NULL) {\n" % (firstwordlower, re.sub('IEs', '', lowerFirstCamelWord(re.sub('-', '_', key)))))
|
||||
f.write(" return -1;\n")
|
||||
f.write(" }\n")
|
||||
f.write(" ASN_SEQUENCE_ADD(&%s->list, ie);\n" % (firstwordlower))
|
||||
f.write(" }\n")
|
||||
f.write(" return 0;\n")
|
||||
f.write("}\n\n")
|
||||
|
||||
#Generate xer print functions
|
||||
f = open(outdir + fileprefix + '_xer_print.c', 'w')
|
||||
outputHeaderToFile(f, filename)
|
||||
f.write("#include <stdlib.h>\n")
|
||||
f.write("#include <stdio.h>\n\n")
|
||||
f.write("#include <asn_application.h>\n#include <asn_internal.h>\n\n")
|
||||
f.write("#include \"%s_common.h\"\n#include \"%s_ies_defs.h\"\n\n" % (fileprefix, fileprefix))
|
||||
|
||||
f.write("size_t %s_string_total_size = 0;\n\n" % (fileprefix.lower()))
|
||||
f.write("""int
|
||||
%s_xer__print2fp(const void *buffer, size_t size, void *app_key) {
|
||||
FILE *stream = (FILE *)app_key;
|
||||
|
||||
if(fwrite(buffer, 1, size, stream) != size)
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
""" % (fileprefix.lower()))
|
||||
|
||||
f.write("""int %s_xer__print2sp(const void *buffer, size_t size, void *app_key) {
|
||||
char *string = (char *)app_key;
|
||||
|
||||
/* Copy buffer to the formatted string */
|
||||
memcpy(&string[%s_string_total_size], buffer, size);
|
||||
|
||||
%s_string_total_size += size;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
""" % (fileprefix.lower(), fileprefix.lower(), fileprefix.lower()))
|
||||
|
||||
f.write("""static asn_enc_rval_t
|
||||
xer_encode_local(asn_TYPE_descriptor_t *td, void *sptr,
|
||||
asn_app_consume_bytes_f *cb, void *app_key, int indent) {
|
||||
asn_enc_rval_t er, tmper;
|
||||
const char *mname;
|
||||
size_t mlen;
|
||||
int xcan = 2;
|
||||
|
||||
if(!td || !sptr) goto cb_failed;
|
||||
|
||||
mname = td->xml_tag;
|
||||
mlen = strlen(mname);
|
||||
|
||||
_i_ASN_TEXT_INDENT(0, indent);
|
||||
_ASN_CALLBACK3("<", 1, mname, mlen, ">", 1);
|
||||
|
||||
tmper = td->xer_encoder(td, sptr, indent + 1, XER_F_BASIC, cb, app_key);
|
||||
if(tmper.encoded == -1) return tmper;
|
||||
|
||||
_ASN_CALLBACK3("</", 2, mname, mlen, ">\\n", xcan);
|
||||
|
||||
er.encoded = 4 + xcan + (2 * mlen) + tmper.encoded;
|
||||
|
||||
_ASN_ENCODED_OK(er);
|
||||
cb_failed:
|
||||
_ASN_ENCODE_FAILED;
|
||||
}
|
||||
""")
|
||||
|
||||
for (key, value) in iesDefs.items():
|
||||
keyName = re.sub('-', '_', key)
|
||||
keyupperunderscore = keyName.upper()
|
||||
iesStructName = lowerFirstCamelWord(re.sub('-', '_', key))
|
||||
|
||||
ie = value["ies"][0]
|
||||
ietypeunderscore = re.sub('-', '_', ie[2])
|
||||
|
||||
if key in ieofielist.values():
|
||||
f.write("asn_enc_rval_t %s_xer_print_%s(\n" % (fileprefix, re.sub('ies', '', re.sub('item', 'list', re.sub('-', '_', key).lower()))))
|
||||
else:
|
||||
f.write("asn_enc_rval_t %s_xer_print_%s(\n" % (fileprefix, re.sub('ies', '', re.sub('-', '_', key).lower())))
|
||||
#f.write(" FILE *file,\n")
|
||||
f.write(" asn_app_consume_bytes_f *cb,\n")
|
||||
f.write(" void *app_key,\n")
|
||||
if key in ieofielist.values():
|
||||
iesStructName = lowerFirstCamelWord(re.sub('Item', 'List', re.sub('-', '_', key)))
|
||||
f.write(" %sIEs_t *%s) {\n\n" % (re.sub('IEs', '', re.sub('Item', 'List', re.sub('-', '_', key))), iesStructName))
|
||||
f.write(" int i;\n")
|
||||
f.write(" asn_enc_rval_t er;\n")
|
||||
else:
|
||||
f.write(" %s_message *message_p)\n{\n" % (fileprefix))
|
||||
f.write(" %s_t *%s;\n" % (re.sub('-', '_', key), iesStructName))
|
||||
f.write(" asn_enc_rval_t er;\n")
|
||||
#f.write(" void *app_key = (void *)file;\n")
|
||||
#f.write(" asn_app_consume_bytes_f *cb = %s_xer__print2fp;\n\n" % (fileprefix.lower()))
|
||||
|
||||
f.write(" %s = &message_p->msg.%s;\n\n" % (iesStructName, iesStructName))
|
||||
|
||||
if key in ieofielist.values():
|
||||
# Increase indentation level
|
||||
f.write(" for (i = 0; i < %s->%s.count; i++) {\n" % (iesStructName, re.sub('IEs', '', lowerFirstCamelWord(re.sub('-', '_', key)))))
|
||||
#f.write(" xer_fprint(file, &asn_DEF_%s, %s->%s.array[i]);\n" % (ietypeunderscore, iesStructName, re.sub('IEs', '', lowerFirstCamelWord(re.sub('-', '_', key)))))
|
||||
f.write(" er = xer_encode(&asn_DEF_%s, %s->%s.array[i], XER_F_BASIC, cb, app_key);\n" % (ietypeunderscore, iesStructName, re.sub('IEs', '', lowerFirstCamelWord(re.sub('-', '_', key)))))
|
||||
f.write(" }\n")
|
||||
else:
|
||||
f.write(" cb(\"<%s-PDU>\\n\", %d, app_key);\n" % (key, len("<%s-PDU>\n" % (key))))
|
||||
f.write(" xer_encode_local(&asn_DEF_%s_Criticality, &message_p->criticality, cb, app_key, 1);\n" % fileprefix_first_upper)
|
||||
f.write(" xer_encode_local(&asn_DEF_%s_ProcedureCode, &message_p->procedureCode, cb, app_key, 1);\n" % fileprefix_first_upper)
|
||||
|
||||
f.write(" cb(\" <%s>\\n\", %d, app_key);\n" % (key, len(" <%s>\n" % (key))))
|
||||
|
||||
for ie in iesDefs[key]["ies"]:
|
||||
iename = re.sub('-', '_', re.sub('id-', '', ie[0]))
|
||||
ienameunderscore = re.sub('-', '_', iename)
|
||||
ienamefirstwordlower = lowerFirstCamelWord(iename)
|
||||
ietypeunderscore = re.sub('-', '_', ie[2])
|
||||
ieupperunderscore = re.sub('-', '_', re.sub('id-', '', ie[0])).upper()
|
||||
|
||||
if ie[3] != "mandatory":
|
||||
if ie[3] == "optional":
|
||||
f.write(" /* Optional field */\n")
|
||||
elif ie[3] == "conditional":
|
||||
f.write(" /* Conditional field */\n")
|
||||
f.write(" if (%s->presenceMask & %s_%s_PRESENT)\n " % (iesStructName, keyupperunderscore, ieupperunderscore))
|
||||
|
||||
# Is it an encapsulated IE ?
|
||||
if ie[2] in ieofielist.keys():
|
||||
f.write(" %s_xer_print_%s(cb, app_key, &%s->%s);\n" % (fileprefix, re.sub('ies', '', re.sub('-', '_', ie[2]).lower()), iesStructName, ienamefirstwordlower))
|
||||
else:
|
||||
f.write(" xer_encode_local(&asn_DEF_%s, &%s->%s, cb, app_key, 2);\n" % (ietypeunderscore, iesStructName, ienamefirstwordlower))
|
||||
f.write(" cb(\" </%s>\\n\", %d, app_key);\n" % (key, len(" </%s>\n" % (key))))
|
||||
f.write(" cb(\"</%s-PDU>\\n\", %d, app_key);\n" % (key, len("</%s-PDU>\n" % (key))))
|
||||
|
||||
f.write(" _ASN_ENCODED_OK(er);\n")
|
||||
#if key not in ieofielist.values():
|
||||
#f.write("cb_failed:\n")
|
||||
#f.write(" return er;\n")
|
||||
f.write("}\n\n")
|
||||
Loading…
Reference in New Issue