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Add matterlint support for deny cluster .... attribute ... (#30147)
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* Add support for matterlint deny and explicitly deny wearcount on GeneralDiagnostics

* Restyle

* A bit of documentation in comments

* Force global attributes in matter files always (since we will codegen based on them)

* Revert "Force global attributes in matter files always (since we will codegen based on them)"

This reverts commit 23b312e.

* Fix docs in lark file

* Clean whitespace

* Fix mypy

* Fix typing

* Can remove some lint restrictions - all clusters passes lint now, some bugs are old
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andy31415 authored and pull[bot] committed Nov 8, 2023
1 parent a00d0f8 commit 9234132
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Showing 5 changed files with 82 additions and 18 deletions.
3 changes: 0 additions & 3 deletions .github/workflows/lint.yml
Original file line number Diff line number Diff line change
Expand Up @@ -51,9 +51,6 @@ jobs:
# https://github.com/project-chip/connectedhomeip/issues/19176
# https://github.com/project-chip/connectedhomeip/issues/19175
# https://github.com/project-chip/connectedhomeip/issues/19173
# https://github.com/project-chip/connectedhomeip/issues/19169
# https://github.com/project-chip/connectedhomeip/issues/22640
if [ "$idl_file" = './examples/all-clusters-app/all-clusters-common/all-clusters-app.matter' ]; then continue; fi
if [ "$idl_file" = './examples/log-source-app/log-source-common/log-source-app.matter' ]; then continue; fi
if [ "$idl_file" = './examples/placeholder/linux/apps/app1/config.matter' ]; then continue; fi
if [ "$idl_file" = './examples/placeholder/linux/apps/app2/config.matter' ]; then continue; fi
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18 changes: 13 additions & 5 deletions scripts/py_matter_idl/matter_idl/lint/lint_rules_grammar.lark
Original file line number Diff line number Diff line change
Expand Up @@ -4,25 +4,33 @@ instruction: load_xml|all_endpoint_rule|specific_endpoint_rule

load_xml: "load" ESCAPED_STRING ";"

all_endpoint_rule: "all" "endpoints" "{" required_global_attribute* "}"
all_endpoint_rule: "all" "endpoints" "{" (required_global_attribute|denylist_cluster_attribute)* "}"

specific_endpoint_rule: "endpoint" integer "{" (required_server_cluster|rejected_server_cluster)* "}"

required_global_attribute: "require" "global" "attribute" id "=" integer ";"

required_server_cluster: "require" "server" "cluster" (id|POSITIVE_INTEGER|HEX_INTEGER) ";"
required_server_cluster: "require" "server" "cluster" id_or_number ";"

rejected_server_cluster: "reject" "server" "cluster" (id|POSITIVE_INTEGER|HEX_INTEGER) ";"
rejected_server_cluster: "reject" "server" "cluster" id_or_number ";"

// Allows deny like:
// deny cluster 234; // Deny an entire cluster
// deny cluster DescriptorCluster attribute 123; // attribute deny (mix name and number)
// deny cluster 11 attribute 22; // attribute deny
denylist_cluster_attribute: "deny" "cluster" id_or_number ["attribute" id_or_number] ";"

integer: positive_integer | negative_integer

?id_or_number: (id|positive_integer)

positive_integer: POSITIVE_INTEGER | HEX_INTEGER
negative_integer: "-" positive_integer

id: ID

POSITIVE_INTEGER: /\d+/
HEX_INTEGER: /0x[A-Fa-f0-9]+/
POSITIVE_INTEGER: /\d+/
HEX_INTEGER: /0x[A-Fa-f0-9]+/
ID: /[a-zA-Z_][a-zA-Z0-9_]*/

%import common.ESCAPED_STRING
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28 changes: 20 additions & 8 deletions scripts/py_matter_idl/matter_idl/lint/lint_rules_parser.py
Original file line number Diff line number Diff line change
Expand Up @@ -11,15 +11,15 @@
from lark.visitors import Discard, Transformer, v_args

try:
from .types import (AttributeRequirement, ClusterCommandRequirement, ClusterRequirement, ClusterValidationRule,
RequiredAttributesRule, RequiredCommandsRule)
from .types import (AttributeRequirement, ClusterAttributeDeny, ClusterCommandRequirement, ClusterRequirement,
ClusterValidationRule, RequiredAttributesRule, RequiredCommandsRule)
except ImportError:
import sys

sys.path.append(os.path.join(os.path.abspath(
os.path.dirname(__file__)), "..", ".."))
from matter_idl.lint.types import (AttributeRequirement, ClusterCommandRequirement, ClusterRequirement, ClusterValidationRule,
RequiredAttributesRule, RequiredCommandsRule)
from matter_idl.lint.types import (AttributeRequirement, ClusterAttributeDeny, ClusterCommandRequirement, ClusterRequirement,
ClusterValidationRule, RequiredAttributesRule, RequiredCommandsRule)


class ElementNotFoundError(Exception):
Expand Down Expand Up @@ -167,6 +167,9 @@ def GetLinterRules(self):
def RequireAttribute(self, r: AttributeRequirement):
self._required_attributes_rule.RequireAttribute(r)

def Deny(self, what: ClusterAttributeDeny):
self._required_attributes_rule.Deny(what)

def FindClusterCode(self, name: str) -> Optional[Tuple[str, int]]:
if name not in self._cluster_codes:
# Name may be a number. If this can be parsed as a number, accept it anyway
Expand Down Expand Up @@ -281,9 +284,14 @@ def start(self, instructions):
def instruction(self, instruction):
return Discard

def all_endpoint_rule(self, attributes):
for attribute in attributes:
self.context.RequireAttribute(attribute)
def all_endpoint_rule(self, rules: List[Union[AttributeRequirement, ClusterAttributeDeny]]):
for rule in rules:
if type(rule) is AttributeRequirement:
self.context.RequireAttribute(rule)
elif type(rule) is ClusterAttributeDeny:
self.context.Deny(rule)
else:
raise Exception("Unkown endpoint requirement: %r" % rule)

return Discard

Expand Down Expand Up @@ -320,6 +328,10 @@ def required_server_cluster(self, id):
def rejected_server_cluster(self, id):
return ServerClusterRequirement(ClusterActionEnum.REJECT, id)

@v_args(inline=True)
def denylist_cluster_attribute(self, cluster_id, attribute_id):
return ClusterAttributeDeny(cluster_id, attribute_id)


class Parser:
def __init__(self, parser, file_name: str):
Expand All @@ -337,7 +349,7 @@ def CreateParser(file_name: str):
Generates a parser that will process a ".matter" file into a IDL
"""
return Parser(
Lark.open('lint_rules_grammar.lark', rel_to=__file__, parser='lalr', propagate_positions=True), file_name=file_name)
Lark.open('lint_rules_grammar.lark', rel_to=__file__, parser='lalr', propagate_positions=True, maybe_placeholders=True), file_name=file_name)


if __name__ == '__main__':
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41 changes: 39 additions & 2 deletions scripts/py_matter_idl/matter_idl/lint/types.py
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@

from abc import ABC, abstractmethod
from dataclasses import dataclass, field
from typing import List, MutableMapping, Optional
from typing import List, MutableMapping, Optional, Union

from matter_idl.matter_idl_types import ClusterSide, Idl, ParseMetaData

Expand Down Expand Up @@ -75,6 +75,12 @@ class AttributeRequirement:
filter_cluster: Optional[int] = field(default=None)


@dataclass
class ClusterAttributeDeny:
cluster_id: Union[str, int]
attribute_id: Union[str, int]


@dataclass
class ClusterRequirement:
endpoint_id: int
Expand Down Expand Up @@ -202,6 +208,7 @@ class RequiredAttributesRule(ErrorAccumulatingRule):
def __init__(self, name):
super().__init__(name)
self._mandatory_attributes: List[AttributeRequirement] = []
self._deny_attributes: List[ClusterAttributeDeny] = []

def __repr__(self):
result = "RequiredAttributesRule{\n"
Expand All @@ -211,13 +218,22 @@ def __repr__(self):
for attr in self._mandatory_attributes:
result += " - %r\n" % attr

if self._deny_attributes:
result += " deny_attributes:\n"
for attr in self._deny_attributes:
result += " - %r\n" % attr

result += "}"
return result

def RequireAttribute(self, attr: AttributeRequirement):
"""Mark an attribute required"""
self._mandatory_attributes.append(attr)

def Deny(self, what: ClusterAttributeDeny):
"""Mark a cluster (or cluster/attribute) as denied"""
self._deny_attributes.append(what)

def _ServerClusterDefinition(self, name: str, location: Optional[LocationInFile]):
"""Finds the server cluster definition with the given name.
Expand Down Expand Up @@ -275,7 +291,7 @@ def _LintImpl(self):

attribute_codes.add(name_to_code_map[attr.name])

# Linting codes now
# Linting required attributes
for check in self._mandatory_attributes:
if check.filter_cluster is not None and check.filter_cluster != cluster_definition.code:
continue
Expand All @@ -286,6 +302,27 @@ def _LintImpl(self):
check.name, check.code),
self._ParseLocation(cluster.parse_meta))

# Lint rejected attributes
for check in self._deny_attributes:
if check.cluster_id not in [cluster_definition.name, cluster_definition.code]:
continue # different cluster

if check.attribute_id is None:
self._AddLintError(
f"EP{endpoint.number}: cluster {cluster_definition.name}({cluster_definition.code}) is DENIED!",
self._ParseLocation(cluster.parse_meta))
continue

# figure out every attribute that may be denied
# We already know every attribute name and have codes
for attr in cluster.attributes:
if check.attribute_id in [attr.name, name_to_code_map[attr.name]]:
cluster_str = f"{cluster_definition.name}({cluster_definition.code})"
attribute_str = f"{attr.name}({name_to_code_map[attr.name]})"
self._AddLintError(
f"EP{endpoint.number}: attribute {cluster_str}::{attribute_str} is DENIED!",
self._ParseLocation(cluster.parse_meta))


@dataclass
class ClusterCommandRequirement:
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10 changes: 10 additions & 0 deletions scripts/rules.matterlint
Original file line number Diff line number Diff line change
Expand Up @@ -105,6 +105,16 @@ all endpoints {

require global attribute featureMap = 65532;
require global attribute clusterRevision = 65533;

// Deny rules:
// deny cluster Foo; // denies entire cluster by name
// deny cluster 123; // denies entire cluster by id
// deny cluster Foo attribute bar; // denies specific attribute by name
// deny cluster Foo attribute 123; // denies specific attribute by id
// deny cluster 234 attribute 567; // Allows deny using ids only

// (previously AverageWearCount, see #30002/#29285 in GitHub)
deny cluster GeneralDiagnostics attribute 9;
}

endpoint 0 {
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