asn1tostruct.py 34.6 KB
Newer Older
Cedric Roux's avatar
 
Cedric Roux committed
1 2 3 4 5
import re, os, sys, string
import datetime
import getopt
import getpass

Cedric Roux's avatar
Cedric Roux committed
6
version = "1.0.2"
Cedric Roux's avatar
 
Cedric Roux committed
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

lines = ""
iesDefs = {}
ieofielist = {}
outdir = './'

filenames = []
verbosity = 0
prefix = ""

FAIL = '\033[91m'
WARN = '\033[93m'
ENDC = '\033[0m'

fileprefix = ""
22
fileprefix_first_upper = ""
Cedric Roux's avatar
 
Cedric Roux committed
23 24 25 26 27 28 29 30 31 32 33 34 35

def printFail(string):
    sys.stderr.write(FAIL + string + ENDC + "\n")

def printWarning(string):
    print WARN + string + ENDC

def printDebug(string):
    if verbosity > 0:
        print string

def outputHeaderToFile(f, filename):
    now = datetime.datetime.now()
36 37 38 39 40
    f.write("""/*
 * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The OpenAirInterface Software Alliance licenses this file to You under
41
 * the OAI Public License, Version 1.1  (the "License"); you may not use this file
42 43 44 45 46 47 48 49 50 51 52 53 54 55
 * except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.openairinterface.org/?page_id=698
 *
 * 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.
 *-------------------------------------------------------------------------------
 * For more information about the OpenAirInterface (OAI) Software Alliance:
 *      contact@openairinterface.org
 */
Cedric Roux's avatar
 
Cedric Roux committed
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

""")
    f.write("/*******************************************************************************\n")
    f.write(" * This file had been created by asn1tostruct.py script v%s\n" % (version))
    f.write(" * Please do not modify this file but regenerate it via script.\n")
    f.write(" * Created on: %s by %s\n * from %s\n" % (str(now), getpass.getuser(), filenames))
    f.write(" ******************************************************************************/\n")

def lowerFirstCamelWord(word):
    """ puts the first word in a CamelCase Word in lowercase.

    I.e. CustomerID becomes customerID, XMLInfoTest becomes xmlInfoTest
    """
    newstr = ''
    swapped = word.swapcase()
    idx = 0

    # if it's all-caps, return an all-lowered version
    lowered = word.lower()

    if swapped == lowered:
        return lowered

    for c in swapped:
        if c in string.lowercase:
            newstr += c
82
            idx    += 1
Cedric Roux's avatar
 
Cedric Roux committed
83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158
        else:
            break
    if idx < 2:
        newstr += word[idx:]
    else:
        newstr = newstr[:-1]+ word[idx-1:]

    return newstr

def usage():
    print "Python parser for asn1 v%s" % (version)
    print "Usage: python asn1tostruct.py [options]"
    print "Available options:"
    print "-d        Enable script debug"
    print "-f [file] Input file to parse"
    print "-o [dir]  Output files to given directory"
    print "-h        Print this help and return"

try:
    opts, args = getopt.getopt(sys.argv[1:], "df:ho:", ["debug", "file", "help", "outdir"])
except getopt.GetoptError as err:
    # print help information and exit:
    usage()
    sys.exit(2)

for o, a in opts:
    if o in ("-f", "--file"):
        filenames.append(a)
    if o in ("-d", "--debug"):
        verbosity = 1
    if o in ("-o", "--outdir"):
        outdir = a
        if outdir.rfind('/') != len(outdir):
            outdir += '/'
    if o in ("-h", "--help"):
        usage()
        sys.exit(2)

for filename in filenames:
    file = open(filename, 'r')
    for line in file:
        # Removing any comment
        if line.find('--') >= 0:
            line = line[:line.find('--')]
        # Removing any carriage return
        lines += re.sub('\r', '', line)

    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):
        ieofielist[m[0]] = m[1]
    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):
        ieofielist[m[0]] = m[1]

    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):
        ies = []
        maxLength = 0
        # TODO: handle extensions
        if i[1].find('EXTENSION') >= 0:
            continue
        if fileprefix == "":
            fileprefix = i[1][:i[1].find('-')].lower()
        for j in re.findall(r'\s*\{\s*([a-zA-Z0-9-\ \t]+)\s*\}\s*[\|,]*', i[2], re.MULTILINE):
            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):
                printDebug("Got new ie for message " + i[0] + ": " + str(k))
                if len(k[2]) > maxLength:
                    maxLength = len(k[2])
                ies.append(k)

        if len(ies) > 0:
            iesDefs[i[0]] = { "length": maxLength, "ies": ies }
        else:
            printWarning("Didn't find any information element for message: " + i[0])

if len(iesDefs) == 0:
    printFail("No Information Element parsed, exiting")
    sys.exit(0)

159 160
fileprefix_first_upper = fileprefix[0].upper() + fileprefix[1:]

Cedric Roux's avatar
 
Cedric Roux committed
161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219
f = open(outdir + fileprefix + '_ies_defs.h', 'w')
outputHeaderToFile(f, filename)
f.write("#include \"%s_common.h\"\n\n" % (fileprefix))
f.write("#ifndef %s_IES_DEFS_H_\n#define %s_IES_DEFS_H_\n\n" % (fileprefix.upper(), fileprefix.upper()))
f.write("/* Define the version of script used to generate this file */\n")
f.write("#define %s_SCRIPT_VERSION (%s)\n\n" % (fileprefix.upper(), re.sub('\.', '', version)))

for key in iesDefs:

    if key not in ieofielist.values():
        continue

    for (i, j) in ieofielist.items():
        if j == key:
            break

    f.write("typedef struct %sIEs_s {\n" % (re.sub('-', '_', i)))
    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])))))
    f.write("} %sIEs_t;\n\n" % (re.sub('-', '_', i)))

for key in iesDefs:
    keyupperunderscore = re.sub('-', '_', key.upper())
    keylowerunderscore = re.sub('-', '_', key.lower())
    shift = 0

    if len(iesDefs[key]["ies"]) == 0:
        continue

    # Presence mask
    for ie in iesDefs[key]["ies"]:
        ieupperunderscore = re.sub('-', '_', re.sub('id-', '', ie[0])).upper()

        if ie[3] == "optional" or ie[3] == "conditional":
            f.write("#define {0:<{pad}} {1}\n".format("%s_%s_PRESENT" % (keyupperunderscore, ieupperunderscore), "(1 << %d)" % shift,
            pad=iesDefs[key]["length"] + len(keyupperunderscore) + 9))
            shift += 1
    if (shift > 0):
        f.write("\n")

    f.write("typedef struct %s_s {\n" % (re.sub('-', '_', key)))
    if (shift > 0):
        f.write("    {0:<{pad}} {1};\n".format("uint16_t", "presenceMask", pad=iesDefs[key]["length"] + 2))
    for ie in iesDefs[key]["ies"]:
        ieunderscore = re.sub('-', '_', ie[2])
        iename = re.sub('id-', '', ie[0])
        ienameunderscore = lowerFirstCamelWord(re.sub('-', '_', iename))
        if ie[2] in ieofielist:
            f.write("    %sIEs_t %s;" % (re.sub('-', '_', ie[2]), ienameunderscore))
        else:
            f.write("    {0:<{pad}} {1};".format("%s_t" % ieunderscore, ienameunderscore, pad=iesDefs[key]["length"] + 2))
        if ie[3] == "optional":
            f.write(" ///< Optional field")
        elif ie[3] == "conditional":
            f.write(" ///< Conditional field")
        f.write("\n")

    f.write("} %s_t;\n\n" % (re.sub('-', '_', key)))

f.write("typedef struct %s_message_s {\n" % (fileprefix))
220 221 222
f.write("    %s_ProcedureCode_t procedureCode;\n" % (fileprefix_first_upper))
f.write("    %s_Criticality_t   criticality;\n" % (fileprefix_first_upper))
f.write("    uint8_t            direction;\n")
Cedric Roux's avatar
 
Cedric Roux committed
223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243
f.write("    union {\n")

messageList = iesDefs.keys()
messageList.sort()
for message in messageList:
    if message in ieofielist.values():
        continue
    if len(iesDefs[message]["ies"]) == 0:
        continue
    f.write("        %s_t %s;\n" % (re.sub('-', '_', message), lowerFirstCamelWord(re.sub('-', '_', message))))
f.write("    } msg;\n")
f.write("} %s_message;\n\n" % (fileprefix))

for key in iesDefs:
    if key in ieofielist.values():
        continue
    structName = re.sub('ies', '', key)
    asn1cStruct = re.sub('-', '_', re.sub('IEs', '', re.sub('-IEs', '', key)))
    asn1cStruct = re.sub('Item', 'List', asn1cStruct)
    keylowerunderscore = re.sub('-', '_', key.lower())
    firstlower = re.sub('Item', 'List', re.sub('enb', 'eNB', lowerFirstCamelWord(asn1cStruct)))
244 245

    f.write("/* %s in iesDefs not in ieofielist.values()  */\n" % (key))
Cedric Roux's avatar
 
Cedric Roux committed
246 247 248 249 250 251 252 253 254 255 256 257 258
    f.write("/** \\brief Decode function for %s ies.\n" % (key))
    if len(iesDefs[key]["ies"]) != 0:
        f.write(" * \\param %s Pointer to ASN1 structure in which data will be stored\n" % (lowerFirstCamelWord(re.sub('-', '_', key))))
    f.write(" *  \\param any_p Pointer to the ANY value to decode.\n")
    f.write(" **/\n")
    f.write("int %s_decode_%s(\n" % (fileprefix, keylowerunderscore))
    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")

    if len(iesDefs[key]["ies"]) == 0:
        continue

259
    f.write("/* %s in iesDefs not in ieofielist.values()  */\n" % (key))
Cedric Roux's avatar
 
Cedric Roux committed
260 261 262 263 264 265 266 267
    f.write("/** \\brief Encode function for %s ies.\n" % (key))
    f.write(" *  \\param %s Pointer to the ASN1 structure.\n" % (firstlower))
    f.write(" *  \\param %s Pointer to the IES structure.\n" % (lowerFirstCamelWord(re.sub('-', '_', key))))
    f.write(" **/\n")
    f.write("int %s_encode_%s(\n" % (fileprefix, re.sub('-', '_', structName.lower())))
    f.write("    %s_t *%s,\n" % (asn1cStruct, firstlower))
    f.write("    %s_t *%s);\n\n" % (re.sub('-', '_', key), lowerFirstCamelWord(re.sub('-', '_', key))))

268

Cedric Roux's avatar
 
Cedric Roux committed
269 270 271 272 273 274
for key in iesDefs:
    if key not in ieofielist.values():
        continue
    asn1cStruct = re.sub('-', '_', re.sub('IEs', '', key))
    asn1cStruct = re.sub('Item', 'List', asn1cStruct)
    firstlower = re.sub('Item', 'List', re.sub('enb', 'eNB', lowerFirstCamelWord(asn1cStruct)))
275
    f.write("/* %s in iesDefs in ieofielist.values()  */\n" % (key))
Cedric Roux's avatar
 
Cedric Roux committed
276 277 278 279
    f.write("/** \\brief Encode function for %s ies.\n" % (key))
    f.write(" *  \\param %s Pointer to the ASN1 structure.\n" % (firstlower))
    f.write(" *  \\param %s Pointer to the IES structure.\n" % (lowerFirstCamelWord(re.sub('-', '_', key))))
    f.write(" **/\n")
280
    f.write("/* %s in iesDefs in ieofielist.values()  */\n" % (key))
Cedric Roux's avatar
 
Cedric Roux committed
281 282 283 284 285 286 287
    f.write("int %s_encode_%s(\n" % (fileprefix, firstlower.lower()))
    f.write("    %s_t *%s,\n" % (asn1cStruct, firstlower))
    f.write("    %sIEs_t *%sIEs);\n\n" % (asn1cStruct, firstlower))
    f.write("/** \\brief Decode function for %s ies.\n" % (key))
    f.write(" *  \\param any_p Pointer to the ANY value to decode.\n")
    f.write(" *  \\param callback Callback function called when any_p is successfully decoded.\n")
    f.write(" **/\n")
288
    f.write("/* %s in iesDefs in ieofielist.values()  */\n" % (key))
Cedric Roux's avatar
 
Cedric Roux committed
289 290 291
    f.write("int %s_decode_%s(\n" % (fileprefix, firstlower.lower()))
    f.write("    %sIEs_t *%sIEs,\n" % (asn1cStruct, firstlower))
    f.write("    %s_t *%s);\n\n" % (asn1cStruct, lowerFirstCamelWord(asn1cStruct)))
292 293


Cedric Roux's avatar
 
Cedric Roux committed
294 295 296 297 298 299 300 301 302 303 304 305

for key in iesDefs:
    asn1cStruct = re.sub('-', '_', re.sub('IEs', '', key))
    asn1cStruct = re.sub('Item', 'List', asn1cStruct)
    firstlower = re.sub('Item', 'List', re.sub('enb', 'eNB', lowerFirstCamelWord(asn1cStruct)))

    if key in ieofielist.values():
        f.write("/** \\brief Display %s encapsulated IE using XER encoding.\n" % (asn1cStruct))
        f.write(" *  \\param %s Pointer to the IES structure.\n" % (lowerFirstCamelWord(re.sub('-', '_', key))))
        f.write(" *  \\param file File descriptor to write output.\n")
        f.write(" **/\n")
        f.write("asn_enc_rval_t %s_xer_print_%s(\n" % (fileprefix, re.sub('item', 'list', firstlower.lower())))
Cedric Roux's avatar
Cedric Roux committed
306 307
        f.write("    asn_app_consume_bytes_f *cb,\n")
        f.write("    void *app_key,\n")
Cedric Roux's avatar
 
Cedric Roux committed
308 309 310 311 312 313 314
        f.write("    %sIEs_t *%sIEs);\n\n" % (re.sub('item', 'list', asn1cStruct), firstlower))
    else:
        f.write("/** \\brief Display %s message using XER encoding.\n" % (asn1cStruct))
        f.write(" *  \\param message_p Pointer to root message.\n")
        f.write(" *  \\param file File descriptor to write output.\n")
        f.write(" **/\n")
        f.write("asn_enc_rval_t %s_xer_print_%s(\n" % (fileprefix, firstlower.lower()))
Cedric Roux's avatar
Cedric Roux committed
315 316
        f.write("    asn_app_consume_bytes_f *cb,\n")
        f.write("    void *app_key,\n")
Cedric Roux's avatar
 
Cedric Roux committed
317
        f.write("    %s_message *message_p);\n\n" % (fileprefix))
Cedric Roux's avatar
Cedric Roux committed
318 319 320 321

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()))
Cedric Roux's avatar
 
Cedric Roux committed
322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363
f.write("#endif /* %s_IES_DEFS_H_ */\n\n" % (fileprefix.upper()))

#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\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("    %s_DEBUG(\"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))
364
    f.write("        %s_IE_t *ie_p;\n" % (fileprefix[0].upper() + fileprefix[1:]))
Cedric Roux's avatar
 
Cedric Roux committed
365 366 367 368 369 370 371 372 373 374 375 376 377 378
    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")
379
        f.write("            case %s_ProtocolIE_ID_%s:\n" % (fileprefix_first_upper, re.sub('-', '_', ie[0])))
Cedric Roux's avatar
 
Cedric Roux committed
380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426
        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("                    %s_ERROR(\"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("                    %s_ERROR(\"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("                %s_ERROR(\"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))))
427
    f.write("        %s_IE_t *ie_p = %s->list.array[i];\n" % (fileprefix[0].upper() + fileprefix[1:], lowerFirstCamelWord(re.sub('-', '_', keyname))))
Cedric Roux's avatar
 
Cedric Roux committed
428 429 430 431
    f.write("        switch (ie_p->id) {\n")
    for ie in iesDefs[key]["ies"]:
        iename = re.sub('id-', '', ie[0])
        ienameunderscore = lowerFirstCamelWord(re.sub('-', '_', iename))
432
        f.write("            case %s_ProtocolIE_ID_%s:\n" % (fileprefix_first_upper, re.sub('-', '_', ie[0])))
Cedric Roux's avatar
 
Cedric Roux committed
433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488
        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("                    %s_ERROR(\"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("                %s_ERROR(\"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))))

489
    f.write("    %s_IE_t *ie;\n\n" % (fileprefix_first_upper))
Cedric Roux's avatar
 
Cedric Roux committed
490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507

    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))
508 509 510 511
            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))
Cedric Roux's avatar
 
Cedric Roux committed
512 513 514 515 516 517 518 519 520 521
            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))
522 523 524
            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))
Cedric Roux's avatar
 
Cedric Roux committed
525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556
            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")

557
    f.write("    %s_IE_t *ie;\n\n" % (fileprefix_first_upper))
Cedric Roux's avatar
 
Cedric Roux committed
558 559 560 561 562

    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)))))
563 564
    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]))
Cedric Roux's avatar
 
Cedric Roux committed
565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581
    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))

Cedric Roux's avatar
Cedric Roux committed
582 583 584
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) {
Cedric Roux's avatar
 
Cedric Roux committed
585 586 587 588 589 590 591 592
    FILE *stream = (FILE *)app_key;

    if(fwrite(buffer, 1, size, stream) != size)
        return -1;

    return 0;
}

Cedric Roux's avatar
Cedric Roux committed
593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608
""" % (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
Cedric Roux's avatar
 
Cedric Roux committed
609 610 611 612 613 614 615 616 617 618 619 620
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);

621 622
    ASN__TEXT_INDENT(0, indent);
    ASN__CALLBACK3("<", 1, mname, mlen, ">", 1);
Cedric Roux's avatar
 
Cedric Roux committed
623

624
    tmper = td->op->xer_encoder(td, sptr, indent + 1, XER_F_BASIC, cb, app_key);
Cedric Roux's avatar
 
Cedric Roux committed
625 626
    if(tmper.encoded == -1) return tmper;

627
    ASN__CALLBACK3("</", 2, mname, mlen, ">\\n", xcan);
Cedric Roux's avatar
 
Cedric Roux committed
628 629 630

    er.encoded = 4 + xcan + (2 * mlen) + tmper.encoded;

631
    ASN__ENCODED_OK(er);
Cedric Roux's avatar
 
Cedric Roux committed
632
cb_failed:
633
    ASN__ENCODE_FAILED;
Cedric Roux's avatar
 
Cedric Roux committed
634 635 636 637 638 639 640 641 642 643 644 645 646 647 648
}
""")

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())))
Cedric Roux's avatar
Cedric Roux committed
649 650 651
    #f.write("    FILE *file,\n")
    f.write("    asn_app_consume_bytes_f *cb,\n")
    f.write("    void *app_key,\n")
Cedric Roux's avatar
 
Cedric Roux committed
652 653 654 655 656 657 658 659 660
    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")
Cedric Roux's avatar
Cedric Roux committed
661 662
        #f.write("    void *app_key = (void *)file;\n")
        #f.write("    asn_app_consume_bytes_f *cb = %s_xer__print2fp;\n\n" % (fileprefix.lower()))
Cedric Roux's avatar
 
Cedric Roux committed
663 664 665 666 667 668

        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)))))
Cedric Roux's avatar
Cedric Roux committed
669 670
        #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)))))
Cedric Roux's avatar
 
Cedric Roux committed
671 672
        f.write("    }\n")
    else:
Cedric Roux's avatar
Cedric Roux committed
673
        f.write("    cb(\"<%s-PDU>\\n\", %d, app_key);\n" % (key, len("<%s-PDU>\n" % (key))))
674 675
        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)
Cedric Roux's avatar
Cedric Roux committed
676 677

        f.write("    cb(\"    <%s>\\n\", %d, app_key);\n" % (key, len("    <%s>\n" % (key))))
Cedric Roux's avatar
 
Cedric Roux committed
678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694

        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():
Cedric Roux's avatar
Cedric Roux committed
695
                f.write("    %s_xer_print_%s(cb, app_key, &%s->%s);\n" % (fileprefix, re.sub('ies', '', re.sub('-', '_', ie[2]).lower()), iesStructName, ienamefirstwordlower))
Cedric Roux's avatar
 
Cedric Roux committed
696 697
            else:
                f.write("    xer_encode_local(&asn_DEF_%s, &%s->%s, cb, app_key, 2);\n" % (ietypeunderscore, iesStructName, ienamefirstwordlower))
Cedric Roux's avatar
Cedric Roux committed
698 699
        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))))
Cedric Roux's avatar
 
Cedric Roux committed
700

701
    f.write("    ASN__ENCODED_OK(er);\n")
Cedric Roux's avatar
 
Cedric Roux committed
702 703 704 705
    #if key not in ieofielist.values():
        #f.write("cb_failed:\n")
        #f.write("    return er;\n")
    f.write("}\n\n")
706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732


#Generate xer print functions
f = open(outdir + fileprefix + '_compare.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" % (fileprefix, fileprefix))
f.write("#include \"%s-ProtocolIE-ID.h\"\n\n" % (fileprefix_first_upper))


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("extern asn_TYPE_descriptor_t asn_DEF_%s;\n" % (ietypeunderscore))