[openconfig_acl] Allow setting ICMP type/code to 0#6932
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daall merged 3 commits intosonic-net:masterfrom Mar 2, 2021
Merged
[openconfig_acl] Allow setting ICMP type/code to 0#6932daall merged 3 commits intosonic-net:masterfrom
daall merged 3 commits intosonic-net:masterfrom
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…of integer types Signed-off-by: Danny Allen <[email protected]>
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sonic-cfggen
qiluo-msft
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Mar 1, 2021
praveen-li
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Mar 1, 2021
| self.__source_mac = YANGDynClass(base=RestrictedClassType(base_type=six.text_type, restriction_dict={u'pattern': u'[0-9a-fA-F]{2}(:[0-9a-fA-F]{2}){5}'}), is_leaf=True, yang_name="source-mac", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, namespace='http://openconfig.net/yang/acl', defining_module='openconfig-acl', yang_type='yang:mac-address', is_config=True) | ||
| self.__source_mac_mask = YANGDynClass(base=RestrictedClassType(base_type=six.text_type, restriction_dict={u'pattern': u'[0-9a-fA-F]{2}(:[0-9a-fA-F]{2}){5}'}), is_leaf=True, yang_name="source-mac-mask", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, namespace='http://openconfig.net/yang/acl', defining_module='openconfig-acl', yang_type='yang:mac-address', is_config=True) | ||
| self.__vlan_id = YANGDynClass(base=RestrictedClassType(base_type=RestrictedClassType(base_type=int, restriction_dict={'range': ['0..65535']},int_size=16), restriction_dict={u'range': [u'0..4095']}), is_leaf=True, yang_name="vlan-id", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, namespace='https://github.com/Azure/sonic-buildimage', defining_module='sonic-acl-extension', yang_type='vlan-id-type', is_config=True) | ||
| self.__vlan_id = YANGDynClass(base=RestrictedClassType(base_type=six.text_type, restriction_dict={u'length': [u'1..4']}), is_leaf=True, yang_name="vlan-id", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, namespace='https://github.com/Azure/sonic-buildimage', defining_module='sonic-acl-extension', yang_type='vlan-id-type', is_config=True) |
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This is interesting. I remember while writing the translation in sonic-Yang-mgmt, I converted each Yang model in Json format using Libyang and got similar data for each leaf\list\container in yang model.
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There is a bug in how pyangbind translates yang models into python bindings. The model always sets integer values to 0 by default, so there is no way to check if a user has provided a value that is equal to 0. This is problematic for ICMP and VLAN (among others) because 0 is a valid input value. This change converts ICMP and VLAN fields to union types so that acl-loader will treat them as null values unless a user explicitly adds an integer value. Signed-off-by: Danny Allen <[email protected]>
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There is a bug in how pyangbind translates yang models into python bindings. The model always sets integer values to 0 by default, so there is no way to check if a user has provided a value that is equal to 0. This is problematic for ICMP and VLAN (among others) because 0 is a valid input value. This change converts ICMP and VLAN fields to union types so that acl-loader will treat them as null values unless a user explicitly adds an integer value. Signed-off-by: Danny Allen <[email protected]>
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There is a bug in how pyangbind translates yang models into python bindings. The model always sets integer values to 0 by default, so there is no way to check if a user has provided a value that is equal to 0. This is problematic for ICMP and VLAN (among others) because 0 is a valid input value. This change converts ICMP and VLAN fields to union types so that acl-loader will treat them as null values unless a user explicitly adds an integer value. Signed-off-by: Danny Allen <[email protected]>
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Signed-off-by: Danny Allen [email protected]
Why I did it
There is a bug in how pyangbind translates yang models into python bindings. The model always sets integer values to 0 by default, so there is no way to check if a user has provided a value that is equal to 0. This is problematic for ICMP and VLAN (among others) because 0 is a valid input value.
We also discovered that if the input is an integer and a string value is provided then the field will be silently ignored, which may be problematic in the case of ACL rules.
How I did it
I converted ICMP and VLAN fields to
uniontypes so thatacl-loaderwill treat them as null values unless a user explicitly adds an integer value.How to verify it
Run
sonic-mgmttests to verify existing acl behavior is intact. See also new tests in sonic-net/sonic-utilities#1469.Which release branch to backport (provide reason below if selected)
Description for the changelog
A picture of a cute animal (not mandatory but encouraged)