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35681c06 | 1 | #!/usr/bin/env python3 |
3e8ee54f | 2 | # |
d486dd0d | 3 | # Copyright 2014-2017 Cumulus Networks, Inc. All rights reserved. |
3e8ee54f | 4 | # Author: Roopa Prabhu, roopa@cumulusnetworks.com |
5 | # | |
6 | # networkInterfaces -- | |
7 | # ifupdown network interfaces file parser | |
8 | # | |
a6f80f0e | 9 | |
739f665b | 10 | import re |
679e6567 | 11 | import copy |
d486dd0d JF |
12 | import glob |
13 | import logging | |
14 | import collections | |
15 | ||
16 | try: | |
17 | from ifupdown2.ifupdown.iface import * | |
18 | from ifupdown2.ifupdown.utils import utils | |
19 | from ifupdown2.ifupdown.template import templateEngine | |
20 | except ImportError: | |
21 | from ifupdown.iface import * | |
22 | from ifupdown.utils import utils | |
23 | from ifupdown.template import templateEngine | |
24 | ||
a6f80f0e | 25 | |
c0071225 RP |
26 | whitespaces = '\n\t\r ' |
27 | ||
a6f80f0e | 28 | class networkInterfaces(): |
2c0ad8b3 | 29 | """ debian ifupdown /etc/network/interfaces file parser """ |
a6f80f0e | 30 | |
77054f7f SA |
31 | _addrfams = {'inet' : ['static', 'manual', 'loopback', 'dhcp', 'dhcp6', 'ppp', 'tunnel'], |
32 | 'inet6' : ['static', 'manual', 'loopback', 'dhcp', 'dhcp6', 'ppp', 'tunnel']} | |
223ba5af | 33 | # tunnel is part of the address family for backward compatibility but is not required. |
d913472d | 34 | |
14dc390d | 35 | def __init__(self, interfacesfile='/etc/network/interfaces', |
3dcc1d0e | 36 | interfacesfileiobuf=None, interfacesfileformat='native', |
f27710fe | 37 | template_enable='0', template_engine=None, |
223ba5af | 38 | template_lookuppath=None, raw=False): |
2c0ad8b3 RP |
39 | """This member function initializes the networkinterfaces parser object. |
40 | ||
41 | Kwargs: | |
904908bc RP |
42 | **interfacesfile** (str): path to the interfaces file (default is /etc/network/interfaces) |
43 | ||
44 | **interfacesfileiobuf** (object): interfaces file io stream | |
45 | ||
46 | **interfacesfileformat** (str): format of interfaces file (choices are 'native' and 'json'. 'native' being the default) | |
47 | ||
48 | **template_engine** (str): template engine name | |
49 | ||
50 | **template_lookuppath** (str): template lookup path | |
2c0ad8b3 RP |
51 | |
52 | Raises: | |
53 | AttributeError, KeyError """ | |
54 | ||
d486dd0d JF |
55 | self.auto_ifaces = [] |
56 | self.callbacks = {} | |
57 | self.auto_all = False | |
223ba5af | 58 | self.raw = raw |
a6f80f0e | 59 | self.logger = logging.getLogger('ifupdown.' + |
60 | self.__class__.__name__) | |
d08d5f54 | 61 | self.callbacks = {'iface_found' : None, |
3dcc1d0e | 62 | 'validateifaceattr' : None, |
63 | 'validateifaceobj' : None} | |
a6f80f0e | 64 | self.allow_classes = {} |
14dc390d | 65 | self.interfacesfile = interfacesfile |
3dcc1d0e | 66 | self.interfacesfileiobuf = interfacesfileiobuf |
67 | self.interfacesfileformat = interfacesfileformat | |
14dc390d | 68 | self._filestack = [self.interfacesfile] |
e272efd9 JF |
69 | |
70 | self._template_engine = None | |
1f5db4a8 | 71 | self._template_enable = template_enable |
e272efd9 JF |
72 | self._template_engine_name = template_engine |
73 | self._template_engine_path = template_lookuppath | |
74 | ||
d40e96ee | 75 | self._currentfile_has_template = False |
f102ef63 | 76 | self._ws_split_regex = re.compile(r'[\s\t]\s*') |
a6f80f0e | 77 | |
cfa06db6 RP |
78 | self.errors = 0 |
79 | self.warns = 0 | |
80 | ||
9dce3561 | 81 | @property |
82 | def _currentfile(self): | |
83 | try: | |
84 | return self._filestack[-1] | |
85 | except: | |
14dc390d | 86 | return self.interfacesfile |
9dce3561 | 87 | |
88 | def _parse_error(self, filename, lineno, msg): | |
d40e96ee | 89 | if lineno == -1 or self._currentfile_has_template: |
9dce3561 | 90 | self.logger.error('%s: %s' %(filename, msg)) |
91 | else: | |
92 | self.logger.error('%s: line%d: %s' %(filename, lineno, msg)) | |
cfa06db6 | 93 | self.errors += 1 |
a6f80f0e | 94 | |
aa5751ba RP |
95 | def _parse_warn(self, filename, lineno, msg): |
96 | if lineno == -1 or self._currentfile_has_template: | |
c46af1c9 | 97 | self.logger.warning('%s: %s' %(filename, msg)) |
aa5751ba | 98 | else: |
c46af1c9 | 99 | self.logger.warning('%s: line%d: %s' %(filename, lineno, msg)) |
cfa06db6 | 100 | self.warns += 1 |
aa5751ba | 101 | |
3dcc1d0e | 102 | def _validate_addr_family(self, ifaceobj, lineno=-1): |
004d1e65 JF |
103 | for family in ifaceobj.addr_family: |
104 | if not self._addrfams.get(family): | |
d913472d | 105 | self._parse_error(self._currentfile, lineno, |
004d1e65 JF |
106 | 'iface %s: unsupported address family \'%s\'' |
107 | % (ifaceobj.name, family)) | |
108 | ifaceobj.addr_family = [] | |
d913472d | 109 | ifaceobj.addr_method = None |
110 | return | |
111 | if ifaceobj.addr_method: | |
004d1e65 | 112 | if ifaceobj.addr_method not in self._addrfams.get(family): |
d913472d | 113 | self._parse_error(self._currentfile, lineno, |
004d1e65 JF |
114 | 'iface %s: unsupported ' |
115 | 'address method \'%s\'' | |
116 | % (ifaceobj.name, ifaceobj.addr_method)) | |
d913472d | 117 | else: |
118 | ifaceobj.addr_method = 'static' | |
119 | ||
a6f80f0e | 120 | def subscribe(self, callback_name, callback_func): |
904908bc | 121 | """This member function registers callback functions. |
2c0ad8b3 RP |
122 | |
123 | Args: | |
904908bc RP |
124 | **callback_name** (str): callback function name (supported names: 'iface_found', 'validateifaceattr', 'validateifaceobj') |
125 | ||
126 | **callback_func** (function pointer): callback function pointer | |
2c0ad8b3 RP |
127 | |
128 | Warns on error | |
129 | """ | |
130 | ||
3b01ed76 JF |
131 | if callback_name not in list(self.callbacks.keys()): |
132 | print('warning: invalid callback ' + callback_name) | |
a6f80f0e | 133 | return -1 |
134 | ||
135 | self.callbacks[callback_name] = callback_func | |
136 | ||
a6f80f0e | 137 | def ignore_line(self, line): |
c0071225 | 138 | l = line.strip(whitespaces) |
fe0a57d3 | 139 | if not l or l[0] == '#': |
a6f80f0e | 140 | return 1 |
a6f80f0e | 141 | return 0 |
142 | ||
143 | def process_allow(self, lines, cur_idx, lineno): | |
3e8ee54f | 144 | allow_line = lines[cur_idx] |
a6f80f0e | 145 | |
f102ef63 | 146 | words = re.split(self._ws_split_regex, allow_line) |
a6f80f0e | 147 | if len(words) <= 1: |
be0b20f2 | 148 | raise Exception('invalid allow line \'%s\' at line %d' |
149 | %(allow_line, lineno)) | |
a6f80f0e | 150 | |
151 | allow_class = words[0].split('-')[1] | |
152 | ifacenames = words[1:] | |
153 | ||
62ddec8b | 154 | if self.allow_classes.get(allow_class): |
a6f80f0e | 155 | for i in ifacenames: |
156 | self.allow_classes[allow_class].append(i) | |
157 | else: | |
158 | self.allow_classes[allow_class] = ifacenames | |
a6f80f0e | 159 | return 0 |
160 | ||
a6f80f0e | 161 | def process_source(self, lines, cur_idx, lineno): |
162 | # Support regex | |
37c0543d | 163 | self.logger.debug('processing sourced line ..\'%s\'' %lines[cur_idx]) |
f102ef63 | 164 | sourced_file = re.split(self._ws_split_regex, lines[cur_idx], 2)[1] |
62ddec8b | 165 | if sourced_file: |
2b5635d4 RP |
166 | filenames = glob.glob(sourced_file) |
167 | if not filenames: | |
3cdb1619 RP |
168 | if '*' not in sourced_file: |
169 | self._parse_warn(self._currentfile, lineno, | |
2b5635d4 RP |
170 | 'cannot find source file %s' %sourced_file) |
171 | return 0 | |
172 | for f in filenames: | |
eab25b7c | 173 | self.read_file(f) |
a6f80f0e | 174 | else: |
9dce3561 | 175 | self._parse_error(self._currentfile, lineno, |
176 | 'unable to read source line') | |
a6f80f0e | 177 | return 0 |
178 | ||
179 | def process_auto(self, lines, cur_idx, lineno): | |
f102ef63 | 180 | auto_ifaces = re.split(self._ws_split_regex, lines[cur_idx])[1:] |
9dce3561 | 181 | if not auto_ifaces: |
d913472d | 182 | self._parse_error(self._currentfile, lineno, |
9dce3561 | 183 | 'invalid auto line \'%s\''%lines[cur_idx]) |
184 | return 0 | |
679e6567 RP |
185 | for a in auto_ifaces: |
186 | if a == 'all': | |
187 | self.auto_all = True | |
188 | break | |
189 | r = utils.parse_iface_range(a) | |
190 | if r: | |
eba4da6e RP |
191 | if len(r) == 3: |
192 | # eg swp1.[2-4], r = "swp1.", 2, 4) | |
193 | for i in range(r[1], r[2]+1): | |
194 | self.auto_ifaces.append('%s%d' %(r[0], i)) | |
195 | elif len(r) == 4: | |
196 | for i in range(r[1], r[2]+1): | |
197 | # eg swp[2-4].100, r = ("swp", 2, 4, ".100") | |
198 | self.auto_ifaces.append('%s%d%s' %(r[0], i, r[3])) | |
679e6567 | 199 | self.auto_ifaces.append(a) |
a6f80f0e | 200 | return 0 |
201 | ||
14dc390d | 202 | def _add_to_iface_config(self, ifacename, iface_config, attrname, |
203 | attrval, lineno): | |
7a51240e | 204 | newattrname = attrname.replace("_", "-") |
7949b8a5 | 205 | try: |
9e012f9e RP |
206 | if not self.callbacks.get('validateifaceattr')(newattrname, |
207 | attrval): | |
7949b8a5 | 208 | self._parse_error(self._currentfile, lineno, |
14dc390d | 209 | 'iface %s: unsupported keyword (%s)' |
210 | %(ifacename, attrname)) | |
7949b8a5 | 211 | return |
212 | except: | |
213 | pass | |
7a51240e | 214 | attrvallist = iface_config.get(newattrname, []) |
215 | if newattrname in ['scope', 'netmask', 'broadcast', 'preferred-lifetime']: | |
be0b20f2 | 216 | # For attributes that are related and that can have multiple |
217 | # entries, store them at the same index as their parent attribute. | |
218 | # The example of such attributes is 'address' and its related | |
d486dd0d | 219 | # attributes. since the related attributes can be optional, |
be0b20f2 | 220 | # we add null string '' in places where they are optional. |
221 | # XXX: this introduces awareness of attribute names in | |
222 | # this class which is a violation. | |
223 | ||
224 | # get the index corresponding to the 'address' | |
225 | addrlist = iface_config.get('address') | |
226 | if addrlist: | |
227 | # find the index of last address element | |
228 | for i in range(0, len(addrlist) - len(attrvallist) -1): | |
229 | attrvallist.append('') | |
230 | attrvallist.append(attrval) | |
7a51240e | 231 | iface_config[newattrname] = attrvallist |
be0b20f2 | 232 | elif not attrvallist: |
7a51240e | 233 | iface_config[newattrname] = [attrval] |
be0b20f2 | 234 | else: |
7a51240e | 235 | iface_config[newattrname].append(attrval) |
a6f80f0e | 236 | |
679e6567 | 237 | def parse_iface(self, lines, cur_idx, lineno, ifaceobj): |
a6f80f0e | 238 | lines_consumed = 0 |
579b3f25 | 239 | line_idx = cur_idx |
a6f80f0e | 240 | |
c0071225 | 241 | iface_line = lines[cur_idx].strip(whitespaces) |
f102ef63 | 242 | iface_attrs = re.split(self._ws_split_regex, iface_line) |
739f665b | 243 | ifacename = iface_attrs[1] |
a6f80f0e | 244 | |
eba4da6e RP |
245 | if (not utils.is_ifname_range(ifacename) and |
246 | utils.check_ifname_size_invalid(ifacename)): | |
9432c671 RP |
247 | self._parse_warn(self._currentfile, lineno, |
248 | '%s: interface name too long' %ifacename) | |
249 | ||
ef892ccc RP |
250 | # in cases where mako is unable to render the template |
251 | # or incorrectly renders it due to user template | |
252 | # errors, we maybe left with interface names with | |
253 | # mako variables in them. There is no easy way to | |
254 | # recognize and warn about these. In the below check | |
255 | # we try to warn the user of such cases by looking for | |
256 | # variable patterns ('$') in interface names. | |
257 | if '$' in ifacename: | |
258 | self._parse_warn(self._currentfile, lineno, | |
259 | '%s: unexpected characters in interface name' %ifacename) | |
260 | ||
223ba5af JF |
261 | if self.raw: |
262 | ifaceobj.raw_config.append(iface_line) | |
a6f80f0e | 263 | iface_config = collections.OrderedDict() |
264 | for line_idx in range(cur_idx + 1, len(lines)): | |
c0071225 | 265 | l = lines[line_idx].strip(whitespaces) |
a6f80f0e | 266 | if self.ignore_line(l) == 1: |
223ba5af JF |
267 | if self.raw: |
268 | ifaceobj.raw_config.append(l) | |
a6f80f0e | 269 | continue |
f102ef63 RP |
270 | attrs = re.split(self._ws_split_regex, l, 1) |
271 | if self._is_keyword(attrs[0]): | |
a6f80f0e | 272 | line_idx -= 1 |
273 | break | |
f102ef63 | 274 | # if not a keyword, every line must have at least a key and value |
eab25b7c | 275 | if len(attrs) < 2: |
9dce3561 | 276 | self._parse_error(self._currentfile, line_idx, |
14dc390d | 277 | 'iface %s: invalid syntax \'%s\'' %(ifacename, l)) |
eab25b7c | 278 | continue |
223ba5af JF |
279 | if self.raw: |
280 | ifaceobj.raw_config.append(l) | |
d08d5f54 | 281 | attrname = attrs[0] |
f102ef63 RP |
282 | # preprocess vars (XXX: only preprocesses $IFACE for now) |
283 | attrval = re.sub(r'\$IFACE', ifacename, attrs[1]) | |
14dc390d | 284 | self._add_to_iface_config(ifacename, iface_config, attrname, |
285 | attrval, line_idx+1) | |
a6f80f0e | 286 | lines_consumed = line_idx - cur_idx |
287 | ||
288 | # Create iface object | |
37c0543d | 289 | if ifacename.find(':') != -1: |
62ddec8b | 290 | ifaceobj.name = ifacename.split(':')[0] |
37c0543d | 291 | else: |
62ddec8b | 292 | ifaceobj.name = ifacename |
37c0543d | 293 | |
62ddec8b | 294 | ifaceobj.config = iface_config |
a6f80f0e | 295 | ifaceobj.generate_env() |
d913472d | 296 | |
297 | try: | |
004d1e65 JF |
298 | if iface_attrs[2]: |
299 | ifaceobj.addr_family.append(iface_attrs[2]) | |
62ddec8b | 300 | ifaceobj.addr_method = iface_attrs[3] |
d913472d | 301 | except IndexError: |
302 | # ignore | |
303 | pass | |
304 | self._validate_addr_family(ifaceobj, lineno) | |
a6f80f0e | 305 | |
679e6567 | 306 | if self.auto_all or (ifaceobj.name in self.auto_ifaces): |
62ddec8b | 307 | ifaceobj.auto = True |
a6f80f0e | 308 | |
62ddec8b | 309 | classes = self.get_allow_classes_for_iface(ifaceobj.name) |
fe0a57d3 | 310 | if classes: |
62ddec8b | 311 | [ifaceobj.set_class(c) for c in classes] |
d486dd0d | 312 | |
a6f80f0e | 313 | return lines_consumed # Return next index |
314 | ||
eba4da6e RP |
315 | def _create_ifaceobj_clone(self, ifaceobj, newifaceobjname, |
316 | newifaceobjtype, newifaceobjflags): | |
317 | ifaceobj_new = copy.deepcopy(ifaceobj) | |
318 | ifaceobj_new.realname = '%s' %ifaceobj.name | |
319 | ifaceobj_new.name = newifaceobjname | |
320 | ifaceobj_new.type = newifaceobjtype | |
321 | ifaceobj_new.flags = newifaceobjflags | |
322 | ||
323 | return ifaceobj_new | |
324 | ||
679e6567 RP |
325 | def process_iface(self, lines, cur_idx, lineno): |
326 | ifaceobj = iface() | |
327 | lines_consumed = self.parse_iface(lines, cur_idx, lineno, ifaceobj) | |
328 | ||
329 | range_val = utils.parse_iface_range(ifaceobj.name) | |
330 | if range_val: | |
eba4da6e RP |
331 | if len(range_val) == 3: |
332 | for v in range(range_val[1], range_val[2]+1): | |
333 | ifacename = '%s%d' %(range_val[0], v) | |
334 | if utils.check_ifname_size_invalid(ifacename): | |
335 | self._parse_warn(self._currentfile, lineno, | |
336 | '%s: interface name too long' %ifacename) | |
337 | flags = iface.IFACERANGE_ENTRY | |
338 | if v == range_val[1]: | |
339 | flags |= iface.IFACERANGE_START | |
340 | ifaceobj_new = self._create_ifaceobj_clone(ifaceobj, | |
341 | ifacename, ifaceobj.type, flags) | |
342 | self.callbacks.get('iface_found')(ifaceobj_new) | |
343 | elif len(range_val) == 4: | |
344 | for v in range(range_val[1], range_val[2]+1): | |
345 | ifacename = '%s%d%s' %(range_val[0], v, range_val[3]) | |
346 | if utils.check_ifname_size_invalid(ifacename): | |
347 | self._parse_warn(self._currentfile, lineno, | |
348 | '%s: interface name too long' %ifacename) | |
349 | flags = iface.IFACERANGE_ENTRY | |
350 | if v == range_val[1]: | |
351 | flags |= iface.IFACERANGE_START | |
352 | ifaceobj_new = self._create_ifaceobj_clone(ifaceobj, | |
353 | ifacename, ifaceobj.type, flags) | |
354 | self.callbacks.get('iface_found')(ifaceobj_new) | |
679e6567 RP |
355 | else: |
356 | self.callbacks.get('iface_found')(ifaceobj) | |
357 | ||
358 | return lines_consumed # Return next index | |
a6f80f0e | 359 | |
84ca006f RP |
360 | def process_vlan(self, lines, cur_idx, lineno): |
361 | ifaceobj = iface() | |
362 | lines_consumed = self.parse_iface(lines, cur_idx, lineno, ifaceobj) | |
363 | ||
364 | range_val = utils.parse_iface_range(ifaceobj.name) | |
365 | if range_val: | |
eba4da6e RP |
366 | if len(range_val) == 3: |
367 | for v in range(range_val[1], range_val[2]+1): | |
368 | flags = iface.IFACERANGE_ENTRY | |
369 | if v == range_val[1]: | |
370 | flags |= iface.IFACERANGE_START | |
371 | ifaceobj_new = self._create_ifaceobj_clone(ifaceobj, | |
372 | '%s%d' %(range_val[0], v), | |
373 | ifaceType.BRIDGE_VLAN, flags) | |
374 | self.callbacks.get('iface_found')(ifaceobj_new) | |
375 | elif len(range_val) == 4: | |
376 | for v in range(range_val[1], range_val[2]+1): | |
377 | flags = iface.IFACERANGE_ENTRY | |
378 | if v == range_val[1]: | |
379 | flags |= iface.IFACERANGE_START | |
380 | ifaceobj_new = self._create_ifaceobj_clone(ifaceobj, | |
381 | '%s%d%s' %(range_val[0], v, range_val[3]), | |
382 | ifaceType.BRIDGE_VLAN, | |
383 | flags) | |
384 | self.callbacks.get('iface_found')(ifaceobj_new) | |
84ca006f RP |
385 | else: |
386 | ifaceobj.type = ifaceType.BRIDGE_VLAN | |
387 | self.callbacks.get('iface_found')(ifaceobj) | |
388 | ||
389 | return lines_consumed # Return next index | |
390 | ||
a6f80f0e | 391 | network_elems = { 'source' : process_source, |
392 | 'allow' : process_allow, | |
393 | 'auto' : process_auto, | |
84ca006f RP |
394 | 'iface' : process_iface, |
395 | 'vlan' : process_vlan} | |
a6f80f0e | 396 | |
9dce3561 | 397 | def _is_keyword(self, str): |
a6f80f0e | 398 | # The additional split here is for allow- keyword |
3b01ed76 | 399 | if (str in list(self.network_elems.keys()) or |
3d58f6af | 400 | str.split('-')[0] == 'allow'): |
a6f80f0e | 401 | return 1 |
a6f80f0e | 402 | return 0 |
403 | ||
9dce3561 | 404 | def _get_keyword_func(self, str): |
a6f80f0e | 405 | tmp_str = str.split('-')[0] |
a6f80f0e | 406 | return self.network_elems.get(tmp_str) |
407 | ||
408 | def get_allow_classes_for_iface(self, ifacename): | |
409 | classes = [] | |
3b01ed76 | 410 | for class_name, ifacenames in list(self.allow_classes.items()): |
a6f80f0e | 411 | if ifacename in ifacenames: |
412 | classes.append(class_name) | |
a6f80f0e | 413 | return classes |
414 | ||
3dcc1d0e | 415 | def process_interfaces(self, filedata): |
5b65654f RP |
416 | |
417 | # process line continuations | |
418 | filedata = ' '.join(d.strip() for d in filedata.split('\\')) | |
419 | ||
a6f80f0e | 420 | line_idx = 0 |
421 | lines_consumed = 0 | |
62ddec8b | 422 | raw_config = filedata.split('\n') |
c0071225 | 423 | lines = [l.strip(whitespaces) for l in raw_config] |
579b3f25 | 424 | while (line_idx < len(lines)): |
579b3f25 | 425 | if self.ignore_line(lines[line_idx]): |
426 | line_idx += 1 | |
427 | continue | |
f102ef63 | 428 | words = re.split(self._ws_split_regex, lines[line_idx]) |
c0071225 RP |
429 | if not words: |
430 | line_idx += 1 | |
431 | continue | |
579b3f25 | 432 | # Check if first element is a supported keyword |
9dce3561 | 433 | if self._is_keyword(words[0]): |
434 | keyword_func = self._get_keyword_func(words[0]) | |
d913472d | 435 | lines_consumed = keyword_func(self, lines, line_idx, line_idx+1) |
579b3f25 | 436 | line_idx += lines_consumed |
437 | else: | |
9dce3561 | 438 | self._parse_error(self._currentfile, line_idx + 1, |
439 | 'error processing line \'%s\'' %lines[line_idx]) | |
579b3f25 | 440 | line_idx += 1 |
579b3f25 | 441 | return 0 |
a6f80f0e | 442 | |
3dcc1d0e | 443 | def read_filedata(self, filedata): |
d40e96ee | 444 | self._currentfile_has_template = False |
579b3f25 | 445 | # run through template engine |
e272efd9 JF |
446 | if filedata and '%' in filedata: |
447 | try: | |
800417ae JF |
448 | if not self._template_engine: |
449 | self._template_engine = templateEngine( | |
1f5db4a8 MG |
450 | template_engine=self._template_engine_name, |
451 | template_enable=self._template_enable, | |
452 | template_lookuppath=self._template_engine_path) | |
e272efd9 JF |
453 | rendered_filedata = self._template_engine.render(filedata) |
454 | if rendered_filedata is filedata: | |
455 | self._currentfile_has_template = False | |
456 | else: | |
457 | self._currentfile_has_template = True | |
3b01ed76 | 458 | except Exception as e: |
e272efd9 JF |
459 | self._parse_error(self._currentfile, -1, |
460 | 'failed to render template (%s). Continue without template rendering ...' | |
461 | % str(e)) | |
462 | rendered_filedata = None | |
463 | if rendered_filedata: | |
464 | self.process_interfaces(rendered_filedata) | |
465 | return | |
466 | self.process_interfaces(filedata) | |
3dcc1d0e | 467 | |
468 | def read_file(self, filename, fileiobuf=None): | |
469 | if fileiobuf: | |
470 | self.read_filedata(fileiobuf) | |
471 | return | |
472 | self._filestack.append(filename) | |
473 | self.logger.info('processing interfaces file %s' %filename) | |
38510743 | 474 | try: |
a193d8d1 JF |
475 | with open(filename) as f: |
476 | filedata = f.read() | |
3b01ed76 | 477 | except Exception as e: |
c46af1c9 | 478 | self.logger.warning('error processing file %s (%s)', |
38510743 RP |
479 | filename, str(e)) |
480 | return | |
3dcc1d0e | 481 | self.read_filedata(filedata) |
9dce3561 | 482 | self._filestack.pop() |
a6f80f0e | 483 | |
3dcc1d0e | 484 | def read_file_json(self, filename, fileiobuf=None): |
485 | if fileiobuf: | |
486 | ifacedicts = json.loads(fileiobuf, encoding="utf-8") | |
487 | #object_hook=ifaceJsonDecoder.json_object_hook) | |
488 | elif filename: | |
489 | self.logger.info('processing interfaces file %s' %filename) | |
a193d8d1 JF |
490 | with open(filename) as fp: |
491 | ifacedicts = json.load(fp) | |
3dcc1d0e | 492 | #object_hook=ifaceJsonDecoder.json_object_hook) |
b6c1f551 ST |
493 | |
494 | # we need to handle both lists and non lists formats (e.g. {{}}) | |
495 | if not isinstance(ifacedicts,list): | |
496 | ifacedicts = [ifacedicts] | |
497 | ||
cfa06db6 | 498 | errors = 0 |
3dcc1d0e | 499 | for ifacedict in ifacedicts: |
500 | ifaceobj = ifaceJsonDecoder.json_to_ifaceobj(ifacedict) | |
501 | if ifaceobj: | |
502 | self._validate_addr_family(ifaceobj) | |
cfa06db6 RP |
503 | if not self.callbacks.get('validateifaceobj')(ifaceobj): |
504 | errors += 1 | |
3dcc1d0e | 505 | self.callbacks.get('iface_found')(ifaceobj) |
cfa06db6 | 506 | self.errors += errors |
d486dd0d | 507 | |
3dcc1d0e | 508 | def load(self): |
2c0ad8b3 RP |
509 | """ This member function loads the networkinterfaces file. |
510 | ||
511 | Assumes networkinterfaces parser object is initialized with the | |
512 | parser arguments | |
513 | """ | |
c28fc55e | 514 | if not self.interfacesfile and not self.interfacesfileiobuf: |
c46af1c9 JF |
515 | self.logger.warning('no terminal line stdin used or ') |
516 | self.logger.warning('no network interfaces file defined.') | |
cfa06db6 | 517 | self.warns += 1 |
1e6d7bd7 ST |
518 | return |
519 | ||
3dcc1d0e | 520 | if self.interfacesfileformat == 'json': |
521 | return self.read_file_json(self.interfacesfile, | |
522 | self.interfacesfileiobuf) | |
523 | return self.read_file(self.interfacesfile, | |
524 | self.interfacesfileiobuf) |