--- /dev/null
+/*
+ * Copyright (c) 2003-2007,2009-2010,2013-2014 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@
+ *
+ * verify-cert.c
+ */
+
+#define CFRELEASE(cf) if (cf) { CFRelease(cf); }
+
+#include <Security/SecCertificate.h>
+#include <Security/SecTrust.h>
+#include <Security/SecPolicy.h>
+
+#include <sys/stat.h>
+#include <stdio.h>
+#include <time.h>
+
+int readFile(const char *fileName, unsigned char **bytes, unsigned *numBytes);
+CFStringRef policyToConstant(const char *policy);
+int verify_cert(int argc, char * const *argv);
+
+/* Read an entire file. Copied from cuFileIo.c */
+int readFile(
+ const char *fileName,
+ unsigned char **bytes, /* malloc'd and returned */
+ unsigned *numBytes) /* returned */
+{
+ int rtn;
+ int fd;
+ unsigned char *buf;
+ struct stat sb;
+ unsigned size;
+
+ *numBytes = 0;
+ *bytes = NULL;
+ fd = open(fileName, O_RDONLY, 0);
+ if (fd < 0) {
+ return errno;
+ }
+
+ rtn = fstat(fd, &sb);
+ if (rtn) {
+ goto errOut;
+ }
+ size = (unsigned)sb.st_size;
+ buf = malloc(size);
+ if (buf == NULL) {
+ rtn = ENOMEM;
+ goto errOut;
+ }
+
+ rtn = (int)lseek(fd, 0, SEEK_SET);
+ if (rtn < 0) {
+ free(buf);
+ goto errOut;
+ }
+
+ rtn = (int)read(fd, buf, (size_t)size);
+ if (rtn != (int)size) {
+ if (rtn >= 0) {
+ printf("readFile: short read\n");
+ }
+ free(buf);
+ rtn = EIO;
+ }
+ else {
+ rtn = 0;
+ *bytes = buf;
+ *numBytes = size;
+ }
+errOut:
+ close(fd);
+ return rtn;
+}
+
+static int addCertFile(const char *fileName, CFMutableArrayRef *array) {
+ SecCertificateRef certRef = NULL;
+ CFDataRef dataRef = NULL;
+ unsigned char *buf = NULL;
+ unsigned int numBytes;
+ int rtn = 0;
+
+ if (readFile(fileName, &buf, &numBytes)) {
+ rtn = -1;
+ goto errOut;
+ }
+
+ dataRef = CFDataCreate(NULL, buf, numBytes);
+ certRef = SecCertificateCreateWithData(NULL, dataRef);
+
+ if (*array == NULL) {
+ *array = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ }
+
+ CFArrayAppendValue(*array, certRef);
+
+errOut:
+ /* Cleanup */
+ free(buf);
+ CFRELEASE(dataRef);
+ CFRELEASE(certRef);
+ return rtn;
+}
+
+CFStringRef policyToConstant(const char *policy) {
+ if (policy == NULL) {
+ return NULL;
+ }
+ else if (!strcmp(policy, "basic")) {
+ return kSecPolicyAppleX509Basic;
+ }
+ else if (!strcmp(policy, "ssl")) {
+ return kSecPolicyAppleSSL;
+ }
+ else if (!strcmp(policy, "smime")) {
+ return kSecPolicyAppleSMIME;
+ }
+ else if (!strcmp(policy, "eap")) {
+ return kSecPolicyAppleEAP;
+ }
+ else if (!strcmp(policy, "IPSec")) {
+ return kSecPolicyAppleIPsec;
+ }
+ else if (!strcmp(policy, "appleID")) {
+ return kSecPolicyAppleIDValidation;
+ }
+ else if (!strcmp(policy, "codeSign")) {
+ return kSecPolicyAppleCodeSigning;
+ }
+ else if (!strcmp(policy, "timestamping")) {
+ return kSecPolicyAppleTimeStamping;
+ }
+ else if (!strcmp(policy, "revocation")) {
+ return kSecPolicyAppleRevocation;
+ }
+ else if (!strcmp(policy, "passbook")) {
+ /* Passbook not implemented */
+ return NULL;
+ }
+ else {
+ return NULL;
+ }
+}
+
+int verify_cert(int argc, char * const *argv) {
+ extern char *optarg;
+ extern int optind;
+ int arg;
+
+ CFMutableArrayRef certs = NULL;
+ CFMutableArrayRef roots = NULL;
+
+ CFMutableDictionaryRef dict = NULL;
+ const char *name = NULL;
+ bool client = false;
+
+ OSStatus ortn;
+ int ourRtn = 0;
+ bool quiet = false;
+
+ struct tm time;
+ CFGregorianDate gregorianDate;
+ CFDateRef dateRef = NULL;
+
+ CFStringRef policy = NULL;
+ SecPolicyRef policyRef = NULL;
+ Boolean fetch = true;
+ SecTrustRef trustRef = NULL;
+ SecTrustResultType resultType;
+
+ if (argc < 2) {
+ /* Return 2 triggers usage message. */
+ return 2;
+ }
+
+ optind = 1;
+
+ while ((arg = getopt(argc, argv, "c:r:p:d:n:LqC")) != -1) {
+ switch (arg) {
+ case 'c':
+ /* Can be specified multiple times */
+ if (addCertFile(optarg, &certs)) {
+ fprintf(stderr, "Cert file error\n");
+ ourRtn = 1;
+ goto errOut;
+ }
+ break;
+ case 'r':
+ /* Can be specified multiple times */
+ if (addCertFile(optarg, &roots)) {
+ fprintf(stderr, "Root file error\n");
+ ourRtn = 1;
+ goto errOut;
+ }
+ break;
+ case 'p':
+ policy = policyToConstant(optarg);
+ if (policy == NULL) {
+ fprintf(stderr, "Policy processing error\n");
+ ourRtn = 2;
+ goto errOut;
+ }
+ break;
+ case 'L':
+ /* Force no network fetch of certs */
+ fetch = false;
+ break;
+ case 'n':
+ if (name != NULL) {
+ name = optarg;
+ }
+ break;
+ case 'q':
+ quiet = true;
+ break;
+ case 'C':
+ /* Set to client */
+ client = true;
+ break;
+ case 'd':
+ memset(&time, 0, sizeof(struct tm));
+ if (strptime(optarg, "%Y-%m-%d-%H:%M:%S", &time) == NULL) {
+ if (strptime(optarg, "%Y-%m-%d", &time) == NULL) {
+ fprintf(stderr, "Date processing error\n");
+ ourRtn = 2;
+ goto errOut;
+ }
+ }
+
+ gregorianDate.second = time.tm_sec;
+ gregorianDate.minute = time.tm_min;
+ gregorianDate.hour = time.tm_hour;
+ gregorianDate.day = time.tm_mday;
+ gregorianDate.month = time.tm_mon + 1;
+ gregorianDate.year = time.tm_year + 1900;
+
+ if (dateRef == NULL) {
+ dateRef = CFDateCreate(NULL, CFGregorianDateGetAbsoluteTime(gregorianDate, NULL));
+ }
+ break;
+ default:
+ fprintf(stderr, "Usage error\n");
+ ourRtn = 2;
+ goto errOut;
+ }
+ }
+
+ if (optind != argc) {
+ ourRtn = 2;
+ goto errOut;
+ }
+
+ if (policy == NULL) {
+ policy = kSecPolicyAppleX509Basic;
+ }
+
+ if (certs == NULL) {
+ if (roots == NULL) {
+ fprintf(stderr, "No certs specified.\n");
+ ourRtn = 2;
+ goto errOut;
+ }
+ if (CFArrayGetCount(roots) != 1) {
+ fprintf(stderr, "Multiple roots and no certs not allowed.\n");
+ ourRtn = 2;
+ goto errOut;
+ }
+
+ /* No certs and one root: verify the root */
+ certs = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+ CFArrayAppendValue(certs, CFArrayGetValueAtIndex(roots, 0));
+ }
+
+ /* Per-policy options */
+ if (!CFStringCompare(policy, kSecPolicyAppleSSL, 0) || !CFStringCompare(policy, kSecPolicyAppleIPsec, 0)) {
+ dict = CFDictionaryCreateMutable(NULL, 2, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+
+ if (name == NULL) {
+ ourRtn = 2;
+ goto errOut;
+ }
+ CFDictionaryAddValue(dict, kSecPolicyName, name);
+ CFDictionaryAddValue(dict, kSecPolicyClient, &client);
+ }
+ else if (!CFStringCompare(policy, kSecPolicyAppleEAP, 0)) {
+ dict = CFDictionaryCreateMutable(NULL, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+
+ CFDictionaryAddValue(dict, kSecPolicyClient, &client);
+ }
+ else if (!CFStringCompare(policy, kSecPolicyAppleSMIME, 0)) {
+ dict = CFDictionaryCreateMutable(NULL, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+
+ if (name == NULL) {
+ ourRtn = 2;
+ goto errOut;
+ }
+ CFDictionaryAddValue(dict, kSecPolicyName, name);
+ }
+
+ policyRef = SecPolicyCreateWithProperties(policy, dict);
+
+ /* Now create a SecTrustRef and set its options */
+ ortn = SecTrustCreateWithCertificates(certs, policyRef, &trustRef);
+ if (ortn) {
+ fprintf(stderr, "SecTrustCreateWithCertificates\n");
+ ourRtn = 1;
+ goto errOut;
+ }
+
+ /* Roots (anchors) are optional */
+ if (roots != NULL) {
+ ortn = SecTrustSetAnchorCertificates(trustRef, roots);
+ if (ortn) {
+ fprintf(stderr, "SecTrustSetAnchorCertificates\n");
+ ourRtn = 1;
+ goto errOut;
+ }
+ }
+ if (fetch == false) {
+ ortn = SecTrustSetNetworkFetchAllowed(trustRef, fetch);
+ if (ortn) {
+ fprintf(stderr, "SecTrustSetNetworkFetchAllowed\n");
+ ourRtn = 1;
+ goto errOut;
+ }
+ }
+
+ /* Set verification time for trust object */
+ if (dateRef != NULL) {
+ ortn = SecTrustSetVerifyDate(trustRef, dateRef);
+ if (ortn) {
+ fprintf(stderr, "SecTrustSetVerifyDate\n");
+ ourRtn = 1;
+ goto errOut;
+ }
+ }
+
+ /* Evaluate certs */
+ ortn = SecTrustEvaluate(trustRef, &resultType);
+ if (ortn) {
+ /* Should never fail - error doesn't mean the cert verified badly */
+ fprintf(stderr, "SecTrustEvaluate\n");
+ ourRtn = 1;
+ goto errOut;
+ }
+ switch (resultType) {
+ case kSecTrustResultUnspecified:
+ /* Cert chain valid, no special UserTrust assignments */
+ case kSecTrustResultProceed:
+ /* Cert chain valid AND user explicitly trusts this */
+ break;
+ case kSecTrustResultDeny:
+ /* User-configured denial */
+ if (!quiet) {
+ fprintf(stderr, "SecTrustEvaluate result: kSecTrustResultDeny\n");
+ }
+ ourRtn = 1;
+ break;
+ case kSecTrustResultConfirm:
+ /* Cert chain may well have verified OK, but user has flagged
+ one of these certs as untrustable. */
+ if (!quiet) {
+ fprintf(stderr, "SecTrustEvaluate result: kSecTrustResultConfirm\n");
+ }
+ ourRtn = 1;
+ break;
+ case kSecTrustResultInvalid:
+ /* SecTrustEvaluate not called yet */
+ if (!quiet) {
+ fprintf(stderr, "SecTrustEvaluate result: kSecTrustResultInvalid\n");
+ }
+ ourRtn = 1;
+ break;
+ case kSecTrustResultRecoverableTrustFailure:
+ /* Failure, can be user-overridden */
+ if (!quiet) {
+ fprintf(stderr, "SecTrustEvaluate result: kSecTrustResultRecoverableTrustFailure\n");
+ }
+ ourRtn = 1;
+ break;
+ case kSecTrustResultFatalTrustFailure:
+ /* Complete failure */
+ if (!quiet) {
+ fprintf(stderr, "SecTrustEvaluate result: kSecTrustResultFatalTrustFailure\n");
+ }
+ ourRtn = 1;
+ break;
+ case kSecTrustResultOtherError:
+ /* Failure unrelated to trust evaluation */
+ if (!quiet) {
+ fprintf(stderr, "SecTrustEvaluate result: kSecTrustResultOtherError\n");
+ }
+ ourRtn = 1;
+ break;
+ default:
+ /* Error is not a defined SecTrustResultType */
+ if (!quiet) {
+ fprintf(stderr, "Cert Verify Result: %u\n", resultType);
+ }
+ ourRtn = 1;
+ break;
+ }
+
+ if ((ourRtn == 0) && !quiet) {
+ printf("...certificate verification successful.\n");
+ }
+errOut:
+ /* Cleanup */
+ CFRELEASE(certs);
+ CFRELEASE(roots);
+ CFRELEASE(dateRef);
+ CFRELEASE(dict);
+ CFRELEASE(policyRef);
+ CFRELEASE(trustRef);
+ return ourRtn;
+}
projects / apple / security.git / blobdiff