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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build cgo,!arm,!arm64,!ios
package x509
/*
#cgo CFLAGS: -mmacosx-version-min=10.6 -D__MAC_OS_X_VERSION_MAX_ALLOWED=1060
#cgo LDFLAGS: -framework CoreFoundation -framework Security
#include <CoreFoundation/CoreFoundation.h>
#include <Security/Security.h>
// FetchPEMRoots fetches the system's list of trusted X.509 root certificates.
//
// On success it returns 0 and fills pemRoots with a CFDataRef that contains the extracted root
// certificates of the system. On failure, the function returns -1.
//
// Note: The CFDataRef returned in pemRoots must be released (using CFRelease) after
// we've consumed its content.
int FetchPEMRoots(CFDataRef *pemRoots) {
// Get certificates from all domains, not just System, this lets
// the user add CAs to their "login" keychain, and Admins to add
// to the "System" keychain
SecTrustSettingsDomain domains[] = { kSecTrustSettingsDomainSystem,
kSecTrustSettingsDomainAdmin,
kSecTrustSettingsDomainUser };
int numDomains = sizeof(domains)/sizeof(SecTrustSettingsDomain);
if (pemRoots == NULL) {
return -1;
}
CFMutableDataRef combinedData = CFDataCreateMutable(kCFAllocatorDefault, 0);
for (int i = 0; i < numDomains; i++) {
CFArrayRef certs = NULL;
// Only get certificates from domain that are trusted
OSStatus err = SecTrustSettingsCopyCertificates(domains[i], &certs);
if (err != noErr) {
continue;
}
int numCerts = CFArrayGetCount(certs);
for (int j = 0; j < numCerts; j++) {
CFDataRef data = NULL;
CFErrorRef errRef = NULL;
SecCertificateRef cert = (SecCertificateRef)CFArrayGetValueAtIndex(certs, j);
if (cert == NULL) {
continue;
}
// We only want to add Root CAs, so make sure Subject and Issuer Name match
CFDataRef subjectName = SecCertificateCopyNormalizedSubjectContent(cert, &errRef);
if (errRef != NULL) {
CFRelease(errRef);
continue;
}
CFDataRef issuerName = SecCertificateCopyNormalizedIssuerContent(cert, &errRef);
if (errRef != NULL) {
CFRelease(subjectName);
CFRelease(errRef);
continue;
}
Boolean equal = CFEqual(subjectName, issuerName);
CFRelease(subjectName);
CFRelease(issuerName);
if (!equal) {
continue;
}
// Note: SecKeychainItemExport is deprecated as of 10.7 in favor of SecItemExport.
// Once we support weak imports via cgo we should prefer that, and fall back to this
// for older systems.
err = SecKeychainItemExport(cert, kSecFormatX509Cert, kSecItemPemArmour, NULL, &data);
if (err != noErr) {
continue;
}
if (data != NULL) {
CFDataAppendBytes(combinedData, CFDataGetBytePtr(data), CFDataGetLength(data));
CFRelease(data);
}
}
CFRelease(certs);
}
*pemRoots = combinedData;
return 0;
}
*/
import "C"
import (
"errors"
"unsafe"
)
func loadSystemRoots() (*CertPool, error) {
roots := NewCertPool()
var data C.CFDataRef = nil
err := C.FetchPEMRoots(&data)
if err == -1 {
// TODO: better error message
return nil, errors.New("crypto/x509: failed to load darwin system roots with cgo")
}
defer C.CFRelease(C.CFTypeRef(data))
buf := C.GoBytes(unsafe.Pointer(C.CFDataGetBytePtr(data)), C.int(C.CFDataGetLength(data)))
roots.AppendCertsFromPEM(buf)
return roots, nil
}
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