+++ /dev/null
-/*
- * 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@
- *
- * ct_exceptions.m
- */
-
-#import <Foundation/Foundation.h>
-#include <Security/SecTrustSettingsPriv.h>
-#include <Security/SecCertificatePriv.h>
-#include <utilities/fileIo.h>
-#include <utilities/SecCFWrappers.h>
-
-#include "SecurityCommands.h"
-
-NSString* toolAppID = @"com.apple.security";
-
-static int addCertFile(const char *fileName, NSMutableArray *array) {
- SecCertificateRef certRef = NULL;
- NSData *data = NULL;
- unsigned char *buf = NULL;
- size_t numBytes;
- int rtn = 0;
-
- if (readFileSizet(fileName, &buf, &numBytes)) {
- rtn = -1;
- goto errOut;
- }
-
- data = [NSData dataWithBytes:buf length:numBytes];
- certRef = SecCertificateCreateWithData(NULL, (__bridge CFDataRef)data);
- if (!certRef) {
- certRef = SecCertificateCreateWithPEM(NULL, (__bridge CFDataRef)data);
- if (!certRef) {
- rtn = -1;
- goto errOut;
- }
- }
-
- [array addObject:(__bridge id)certRef];
-
-errOut:
- /* Cleanup */
- free(buf);
- CFReleaseNull(certRef);
- return rtn;
-}
-
-static int returnCFError(CFErrorRef CF_CONSUMED error) {
- CFStringRef errorString = CFErrorCopyDescription(error);
- CFStringPerformWithCString(errorString, ^(const char *utf8Str) {
- fprintf(stderr, "Failed to copy CT exceptions: %s\n", utf8Str);
- });
- CFIndex errCode = CFErrorGetCode(error);
- CFReleaseNull(error);
- return (int)errCode;
-}
-
-static int resetExceptions(bool resetCerts, bool resetDomains) {
- bool result = false;
- CFErrorRef error = NULL;
- if (resetCerts) {
- NSDictionary *resetCertsDict = @{ (__bridge NSString*)kSecCTExceptionsCAsKey: @[] };
- result = SecTrustStoreSetCTExceptions(NULL, (__bridge CFDictionaryRef)resetCertsDict, &error);
- }
- if (!error && resetDomains) {
- NSDictionary *resetDomainsDict = @{ (__bridge NSString*)kSecCTExceptionsDomainsKey : @[] };
- result = SecTrustStoreSetCTExceptions(NULL, (__bridge CFDictionaryRef)resetDomainsDict, &error);
- }
- if (!result) {
- return returnCFError(error);
- }
- return 0;
-}
-
-static int addExceptions(CFStringRef key, NSArray *newExceptions) {
- CFErrorRef error = NULL;
- NSDictionary *currentExceptions = CFBridgingRelease(SecTrustStoreCopyCTExceptions((__bridge CFStringRef)toolAppID, &error));
- if (!currentExceptions && error) {
- return returnCFError(error);
- }
-
- NSMutableArray *exceptionsForKey = nil;
- if (currentExceptions && currentExceptions[(__bridge NSString*)key]) {
- exceptionsForKey = [currentExceptions[(__bridge NSString*)key] mutableCopy];
- [exceptionsForKey addObjectsFromArray:newExceptions];
- } else {
- exceptionsForKey = [newExceptions copy];
- }
-
- NSDictionary *newExceptionsDict = @{ (__bridge NSString*)key: exceptionsForKey };
- bool result = SecTrustStoreSetCTExceptions(NULL, (__bridge CFDictionaryRef)newExceptionsDict, &error);
- if (!result) {
- return returnCFError(error);
- }
-
- return 0;
-}
-
-int add_ct_exceptions(int argc, char * const *argv) {
- int arg;
-
- bool resetDomains = false;
- bool resetCerts = false;
-
- NSMutableArray *domains = [NSMutableArray array];
- NSMutableArray *certs = [NSMutableArray array];
- NSDictionary *plist = nil;
-
- /* parse args */
- if (argc == 1) {
- return SHOW_USAGE_MESSAGE;
- }
-
- while ((arg = getopt(argc, argv, "d:c:r:p:")) != -1) {
- switch(arg) {
- case 'd': {
- NSString *domain = [NSString stringWithCString:optarg encoding:NSUTF8StringEncoding];
- [domains addObject:domain];
- break;
- }
- case 'c':
- if (addCertFile(optarg, certs)) {
- fprintf(stderr, "Failed to read cert file\n");
- return 1;
- }
- break;
- case 'r':
- if (!strcmp(optarg, "all")) {
- resetDomains = true;
- resetCerts = true;
- } else if (!strcmp(optarg, "domain")) {
- resetDomains = true;
- } else if (!strcmp(optarg, "cert")) {
- resetCerts = true;
- } else {
- return SHOW_USAGE_MESSAGE;
- }
- break;
- case 'p':
- plist = [NSDictionary dictionaryWithContentsOfFile:[NSString stringWithCString:optarg encoding:NSUTF8StringEncoding]];
- break;
- case '?':
- default:
- return SHOW_USAGE_MESSAGE;
- }
- }
-
- /* handle reset operation */
- if (resetCerts || resetDomains) {
- return resetExceptions(resetCerts, resetDomains);
- }
-
- /* set plist */
- if (plist) {
- CFErrorRef error = NULL;
- bool result = SecTrustStoreSetCTExceptions(NULL, (__bridge CFDictionaryRef)plist, &error);
- if (!result) {
- return returnCFError(error);
- } else {
- return 0;
- }
- }
-
- /* add domains */
- int status = 0;
- if ([domains count]) {
- status = addExceptions(kSecCTExceptionsDomainsKey, domains);
- }
- if (status != 0) {
- fprintf(stderr, "failed to add domain exceptions\n");
- return status;
- }
-
- /* add certs */
- if ([certs count]) {
- NSMutableArray<NSDictionary *>*valuesForCAsKey = [NSMutableArray arrayWithCapacity:[certs count]];
- [certs enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
- SecCertificateRef cert = (__bridge SecCertificateRef)obj;
- NSData* hash = CFBridgingRelease(SecCertificateCopySubjectPublicKeyInfoSHA256Digest(cert));
- NSDictionary *value = @{ (__bridge NSString*)kSecCTExceptionsHashAlgorithmKey:@"sha256",
- (__bridge NSString*)kSecCTExceptionsSPKIHashKey:hash };
- [valuesForCAsKey addObject:value];
- }];
- status = addExceptions(kSecCTExceptionsCAsKey, valuesForCAsKey);
- }
- if (status != 0) {
- fprintf(stderr, "failed to add cert exceptions\n");
- return status;
- }
-
- return 0;
-}
-
-static int printExceptions(CFStringRef key, NSDictionary *allExceptions) {
- if (!allExceptions || !allExceptions[(__bridge NSString*)key] ||
- [allExceptions[(__bridge NSString*)key] count] == 0) {
- CFStringPerformWithCString(key, ^(const char *utf8Str) {
- fprintf(stdout, "No CT Exceptions for %s\n", utf8Str);
- });
- return 0;
- }
-
- NSArray *exceptionsForKey = allExceptions[(__bridge NSString*)key];
- NSMutableString *exceptionsString = [NSMutableString stringWithFormat:@"\t%@ : [",key];
- [exceptionsForKey enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
- if ([obj isKindOfClass:[NSString class]]) {
- if (idx == 0) {
- [exceptionsString appendFormat:@"\"%@\"",obj];
- } else {
- [exceptionsString appendFormat:@", \"%@\"", obj];
- }
- } else if ([obj isKindOfClass:[NSDictionary class]]) {
- if (idx == 0) {
- [exceptionsString appendString:@"\n\t "];
- } else {
- [exceptionsString appendString:@"\t "];
- }
- [exceptionsString appendFormat:@"\"%@:", obj[(__bridge NSString*)kSecCTExceptionsHashAlgorithmKey]];
- NSString *hashHex = CFBridgingRelease(CFDataCopyHexString((__bridge CFDataRef)obj[(__bridge NSString*)kSecCTExceptionsSPKIHashKey]));
- [exceptionsString appendString:hashHex];
- if ([exceptionsForKey count] == idx + 1) { // last entry
- [exceptionsString appendString:@"\"\n"];
- } else {
- [exceptionsString appendString:@"\",\n"];
- }
- }
- }];
- [exceptionsString appendString:@"]\n"];
- CFStringPerformWithCString((__bridge CFStringRef)exceptionsString, ^(const char *utf8Str) {
- fprintf(stdout, "\n%s\n", utf8Str);
- });
-
- return 0;
-}
-
-int show_ct_exceptions(int argc, char * const *argv) {
- int arg;
- bool allExceptions = false;
- NSString *identifier = nil;
- bool domainExceptions = false;
- bool certExceptions = false;
-
- /* parse args */
- while ((arg = getopt(argc, argv, "ai:dc")) != -1) {
- switch(arg) {
- case 'a':
- allExceptions = true;
- break;
- case 'i':
- identifier = [NSString stringWithCString:optarg encoding:NSUTF8StringEncoding];
- break;
- case 'd':
- domainExceptions = true;
- break;
- case 'c':
- certExceptions = true;
- break;
- case '?':
- default:
- return SHOW_USAGE_MESSAGE;
- }
- }
-
- if (!domainExceptions && !certExceptions) {
- /* Nothing specified, show both */
- domainExceptions = true;
- certExceptions = true;
- }
-
- if (allExceptions) {
- identifier = nil;
- fprintf(stdout, "Showing exceptions for all apps\n");
- } else if (!identifier) {
- identifier = toolAppID;
- }
-
- if (identifier) {
- CFStringPerformWithCString((__bridge CFStringRef)identifier, ^(const char *utf8Str) {
- fprintf(stdout, "Showing exceptions for %s\n", utf8Str);
- });
- }
-
- CFErrorRef error = NULL;
- NSDictionary *results = CFBridgingRelease(SecTrustStoreCopyCTExceptions((__bridge CFStringRef)identifier, &error));
-
- /* Copy failed, return error */
- if (!results && error) {
- return returnCFError(error);
- }
-
- /* print domain exceptions */
- int status = 0;
- if (domainExceptions) {
- status = printExceptions(kSecCTExceptionsDomainsKey, results);
- }
- if (status != 0) {
- fprintf(stderr, "failed to print domain exceptions\n");
- return status;
- }
-
- /* print cert exceptions */
- if (certExceptions) {
- status = printExceptions(kSecCTExceptionsCAsKey, results);
- }
- if (status != 0) {
- fprintf(stderr, "failed to print cert exceptions\n");
- return status;
- }
-
-
- return 0;
-}