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authorFlorin Coras <fcoras@cisco.com>2018-09-18 16:12:50 -0700
committerMarco Varlese <marco.varlese@suse.de>2018-09-19 06:05:29 +0000
commit568ebc76b594f8f29bb131b252031d72c055e0b0 (patch)
treef14aca2a369be4bb3bf34b7019a10a31d3702bcf /src/vnet/session/segment_manager.c
parent5c7c49d15212c34db9c4244cd55913a7b4f363ce (diff)
session: improve close procedure
Change-Id: I6201a044e70ab6a58db8212960c57edc77c41f96 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/segment_manager.c')
-rw-r--r--src/vnet/session/segment_manager.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c
index 0c19293ce3b..bf62040271f 100644
--- a/src/vnet/session/segment_manager.c
+++ b/src/vnet/session/segment_manager.c
@@ -591,7 +591,9 @@ segment_manager_dealloc_fifos (u32 segment_index, svm_fifo_t * rx_fifo,
/* Remove segment manager if no sessions and detached from app */
if (segment_manager_app_detached (sm)
&& !segment_manager_has_fifos (sm))
- segment_manager_del (sm);
+ {
+ segment_manager_del (sm);
+ }
}
else
segment_manager_segment_reader_unlock (sm);
f='#n201'>201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 
from scapy.fields import *
from vpp_object import *


class VppLispLocatorSet(VppObject):
    """ Represents LISP locator set in VPP """

    def __init__(self, test, ls_name):
        self._test = test
        self._ls_name = ls_name

    @property
    def test(self):
        return self._test

    @property
    def ls_name(self):
        return self._ls_name

    def add_vpp_config(self):
        self.test.vapi.lisp_locator_set(ls_name=self._ls_name)
        self._test.registry.register(self, self.test.logger)

    def get_lisp_locator_sets_dump_entry(self):
        result = self.test.vapi.lisp_locator_set_dump()
        for ls in result:
            if ls.ls_name.strip('\x00') == self._ls_name:
                return ls
        return None

    def query_vpp_config(self):
        return self.get_lisp_locator_sets_dump_entry() is not None

    def remove_vpp_config(self):
        self.test.vapi.lisp_locator_set(ls_name=self._ls_name, is_add=0)

    def object_id(self):
        return 'lisp-locator-set-%s' % self._ls_name


class VppLispLocator(VppObject):
    """ Represents LISP locator in VPP """

    def __init__(self, test, sw_if_index, ls_name, priority=1, weight=1):
        self._test = test
        self._sw_if_index = sw_if_index
        self._ls_name = ls_name
        self._priority = priority
        self._weight = weight

    @property
    def test(self):
        """ Test which created this locator """
        return self._test

    @property
    def ls_name(self):
        """ Locator set name """
        return self._ls_name

    @property
    def sw_if_index(self):
        return self._sw_if_index

    @property
    def priority(self):
        return self._priority

    @property
    def weight(self):
        return self._weight

    def add_vpp_config(self):
        self.test.vapi.lisp_locator(ls_name=self._ls_name,
                                    sw_if_index=self._sw_if_index,
                                    priority=self._priority,
                                    weight=self._weight)
        self._test.registry.register(self, self.test.logger)

    def get_lisp_locator_dump_entry(self):
        locators = self.test.vapi.lisp_locator_dump(
                is_index_set=0, ls_name=self._ls_name)
        for locator in locators:
            if locator.sw_if_index == self._sw_if_index:
                return locator
        return None

    def query_vpp_config(self):
        locator = self.get_lisp_locator_dump_entry()
        return locator is not None

    def remove_vpp_config(self):
        self.test.vapi.lisp_locator(
                ls_name=self._ls_name, sw_if_index=self._sw_if_index,
                priority=self._priority, weight=self._weight, is_add=0)
        self._test.registry.register(self, self.test.logger)

    def object_id(self):
        return 'lisp-locator-%s-%d' % (self._ls_name, self._sw_if_index)


class LispEIDType(object):
    IP4 = 0
    IP6 = 1
    MAC = 2


class LispKeyIdType(object):
    NONE = 0
    SHA1 = 1
    SHA256 = 2


class LispEID(object):
    """ Lisp endpoint identifier """
    def __init__(self, eid):
        self.eid = eid

        # find out whether EID is ip4 prefix, ip6 prefix or MAC
        if self.eid.find("/") != -1:
            if self.eid.find(":") == -1:
                self.eid_type = LispEIDType.IP4
                self.data_length = 4
            else:
                self.eid_type = LispEIDType.IP6
                self.data_length = 16

            self.eid_address = self.eid.split("/")[0]
            self.prefix_length = int(self.eid.split("/")[1])
        elif self.eid.count(":") == 5:  # MAC address
            self.eid_type = LispEIDType.MAC
            self.eid_address = self.eid
            self.prefix_length = 0
            self.data_length = 6
        else:
            raise Exception('Unsupported EID format {}!'.format(eid))

    def __str__(self):
        if self.eid_type == LispEIDType.IP4:
            return socket.inet_pton(socket.AF_INET, self.eid_address)
        elif self.eid_type == LispEIDType.IP6:
            return socket.inet_pton(socket.AF_INET6, self.eid_address)
        elif self.eid_type == LispEIDType.MAC:
            return Exception('Unimplemented')
        raise Exception('Unknown EID type {}!'.format(self.eid_type))


class VppLispMapping(VppObject):
    """ Represents common features for remote and local LISP mapping in VPP """

    def __init__(self, test, eid, vni=0, priority=1, weight=1):
        self._eid = LispEID(eid)
        self._test = test
        self._priority = priority
        self._weight = weight
        self._vni = vni

    @property
    def test(self):
        return self._test

    @property
    def vni(self):
        return self._vni

    @property
    def eid(self):
        return self._eid

    @property
    def priority(self):
        return self._priority

    @property
    def weight(self):
        return self._weight

    def get_lisp_mapping_dump_entry(self):
        return self.test.vapi.lisp_eid_table_dump(
                eid_set=1, prefix_length=self._eid.prefix_length,
                vni=self._vni, eid_type=self._eid.eid_type, eid=str(self._eid))

    def query_vpp_config(self):
        mapping = self.get_lisp_mapping_dump_entry()
        return mapping

    def object_id(self):
        return 'lisp-mapping-[%s]-%s-%s-%s' % (
            self.vni, self.eid, self.priority, self.weight)


class VppLocalMapping(VppLispMapping):
    """ LISP Local mapping """
    def __init__(self, test, eid, ls_name, vni=0, priority=1, weight=1,
                 key_id=LispKeyIdType.NONE, key=''):
        super(VppLocalMapping, self).__init__(test, eid, vni, priority, weight)
        self._ls_name = ls_name
        self._key_id = key_id
        self._key = key

    @property
    def ls_name(self):
        return self._ls_name

    @property
    def key_id(self):
        return self._key_id

    @property
    def key(self):
        return self._key

    def add_vpp_config(self):
        self.test.vapi.lisp_local_mapping(
                ls_name=self._ls_name, eid_type=self._eid.eid_type,
                eid=str(self._eid), prefix_len=self._eid.prefix_length,
                vni=self._vni, key_id=self._key_id, key=self._key)
        self._test.registry.register(self, self.test.logger)

    def remove_vpp_config(self):
        self.test.vapi.lisp_local_mapping(
                ls_name=self._ls_name, eid_type=self._eid.eid_type,
                eid=str(self._eid), prefix_len=self._eid.prefix_length,
                vni=self._vni, is_add=0)

    def object_id(self):
        return 'lisp-eid-local-mapping-%s[%d]' % (self._eid, self._vni)


class VppRemoteMapping(VppLispMapping):

    def __init__(self, test, eid, rlocs=None, vni=0, priority=1, weight=1):
        super(VppRemoteMapping, self).__init__(test, eid, vni, priority,
                                               weight)
        self._rlocs = rlocs

    @property
    def rlocs(self):
        return self._rlocs

    def add_vpp_config(self):
        self.test.vapi.lisp_remote_mapping(
                rlocs=self._rlocs, eid_type=self._eid.eid_type,
                eid=str(self._eid), eid_prefix_len=self._eid.prefix_length,
                vni=self._vni, rlocs_num=len(self._rlocs))
        self._test.registry.register(self, self.test.logger)

    def remove_vpp_config(self):
        self.test.vapi.lisp_remote_mapping(
                eid_type=self._eid.eid_type, eid=str(self._eid),
                eid_prefix_len=self._eid.prefix_length, vni=self._vni,
                is_add=0, rlocs_num=0)

    def object_id(self):
        return 'lisp-eid-remote-mapping-%s[%d]' % (self._eid, self._vni)


class VppLispAdjacency(VppObject):
    """ Represents LISP adjacency in VPP """

    def __init__(self, test, leid, reid, vni=0):
        self._leid = LispEID(leid)
        self._reid = LispEID(reid)
        if self._leid.eid_type != self._reid.eid_type:
            raise Exception('remote and local EID are different types!')
        self._vni = vni
        self._test = test

    @property
    def test(self):
        return self._test

    @property
    def leid(self):
        return self._leid

    @property
    def reid(self):
        return self._reid

    @property
    def vni(self):
        return self._vni

    def add_vpp_config(self):
        self.test.vapi.lisp_adjacency(
                leid=str(self._leid),
                reid=str(self._reid), eid_type=self._leid.eid_type,
                leid_len=self._leid.prefix_length,
                reid_len=self._reid.prefix_length, vni=self._vni)
        self._test.registry.register(self, self.test.logger)

    @staticmethod
    def eid_equal(eid, eid_type, eid_data, prefix_len):
        if eid.eid_type != eid_type:
            return False

        if eid_type == LispEIDType.IP4 or eid_type == LispEIDType.IP6:
            if eid.prefix_length != prefix_len:
                return False

        if str(eid) != eid_data[0:eid.data_length]:
            return False

        return True

    def query_vpp_config(self):
        res = self.test.vapi.lisp_adjacencies_get(vni=self._vni)
        for adj in res.adjacencies:
            if self.eid_equal(self._leid, adj.eid_type, adj.leid,
                              adj.leid_prefix_len) and \
                self.eid_equal(self._reid, adj.eid_type, adj.reid,
                               adj.reid_prefix_len):
                return True
        return False

    def remove_vpp_config(self):
        self.test.vapi.lisp_adjacency(
                leid=str(self._leid),
                reid=str(self._reid), eid_type=self._leid.eid_type,
                leid_len=self._leid.prefix_length,
                reid_len=self._reid.prefix_length, vni=self._vni, is_add=0)

    def object_id(self):
        return 'lisp-adjacency-%s-%s[%d]' % (self._leid, self._reid, self._vni)