KernelEventMonitorParser.m   [plain text]

/*
* Copyright (c) 2018 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/

#import <Foundation/Foundation.h>
#import <EventFactory/EventFactory.h>

#import "KernelEventMonitorParser.h"

#define TokenStatus "status"
#define TokenLinkStatus "linkStatus"
#define TokenLinkQuality "linkQuality"

@implementation KernelEventMonitorParser

- (instancetype)init
{
NSArray<EFLogEventMatch *> *matches = @[
[[EFLogEventMatch alloc] initWithPattern:@"Process interface (?<"TokenStatus">attach|detach): (?<"TokenInterfaceName">\\w+)"
newEventHandler:
^EFEvent *(NSTextCheckingResult *matchResult, EFLogEvent *logEvent, BOOL *isComplete) {
*isComplete = YES;
EFNetworkControlPathEvent *newEvent = nil;
NSString *statusString = [logEvent substringForCaptureGroup:@TokenStatus inMatchResult:matchResult];
if (statusString != nil) {
newEvent = [self createInterfaceEventWithLogEvent:logEvent matchResult:matchResult];
if (newEvent != nil) {
newEvent.interfaceStatus = statusString;
}
}
return newEvent;
}],
[[EFLogEventMatch alloc] initWithPattern:@"Process interface link (?<"TokenLinkStatus">down|up): (?<"TokenInterfaceName">\\w+)"
newEventHandler:
^EFEvent *(NSTextCheckingResult *matchResult, EFLogEvent *logEvent, BOOL *isComplete) {
*isComplete = YES;
EFNetworkControlPathEvent *newEvent = nil;
NSString *linkStatusString = [logEvent substringForCaptureGroup:@TokenLinkStatus inMatchResult:matchResult];
if (linkStatusString != nil) {
newEvent = [self createInterfaceEventWithLogEvent:logEvent matchResult:matchResult];
if (newEvent != nil) {
if ([linkStatusString isEqualToString:@"up"]) {
newEvent.link = @"link up";
} else if ([linkStatusString isEqualToString:@"down"]) {
newEvent.link = @"link down";
} else {
newEvent.link = linkStatusString;
}
}
}
return newEvent;
}],
[[EFLogEventMatch alloc] initWithPattern:@"Process interface quality: (?<"TokenInterfaceName">\\w+) \\(q=(?<"TokenLinkQuality">[-\\d]+)\\)"
newEventHandler:
^EFEvent * _Nullable(NSTextCheckingResult * _Nonnull matchResult, EFLogEvent * _Nonnull logEvent, BOOL * _Nonnull isComplete) {
*isComplete = YES;
EFNetworkControlPathEvent *newEvent = nil;
NSString *qualityString = [logEvent substringForCaptureGroup:@TokenLinkQuality inMatchResult:matchResult];
if (qualityString != nil) {
newEvent = [self createInterfaceEventWithLogEvent:logEvent matchResult:matchResult];
if (newEvent != nil) {
newEvent.linkQuality = qualityString.integerValue;
}
}
return newEvent;
}],
];
EFLogEventParser *parser = [[EFLogEventParser alloc] initWithMatches:matches];
return [super initWithCategory:@"KernelEventMonitor" eventParser:parser];
}

@end