Resolves: BZ#1401987
This commit is contained in:
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From 7a75a55cc44b92836f342e9eeb0f5b1ce20821eb Mon Sep 17 00:00:00 2001
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From: Quentin Smith <quentin@golang.org>
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Date: Wed, 30 Nov 2016 15:16:37 -0500
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Subject: [PATCH 3/4] [release-branch.go1.6] crypto/x509: read Darwin trust
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settings for root CAs
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Darwin separately stores bits indicating whether a root certificate
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should be trusted; this changes Go to read and use those when
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initializing SystemCertPool.
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Unfortunately, the trust API is very slow. To avoid a delay of up to
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0.5s in initializing the system cert pool, we assume that
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the trust settings found in kSecTrustSettingsDomainSystem will always
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indicate trust. (That is, all root certs Apple distributes are trusted.)
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This is not guaranteed by the API but is true in practice.
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In the non-cgo codepath, we do not have that benefit, so we must check
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the trust status of every certificate. This causes about 0.5s of delay
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in initializing the SystemCertPool.
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On OS X 10.11 and older, the "security" command requires a certificate
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to be provided in a file and not on stdin, so the non-cgo codepath
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creates temporary files for each certificate, further slowing initialization.
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Updates #18141.
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Change-Id: If681c514047afe5e1a68de6c9d40ceabbce54755
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Reviewed-on: https://go-review.googlesource.com/33721
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Run-TryBot: Quentin Smith <quentin@golang.org>
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TryBot-Result: Gobot Gobot <gobot@golang.org>
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Reviewed-by: Russ Cox <rsc@golang.org>
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Reviewed-on: https://go-review.googlesource.com/33728
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---
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src/crypto/x509/cert_pool.go | 15 +++
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src/crypto/x509/root_cgo_darwin.go | 184 +++++++++++++++++++++++++++++++++---
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src/crypto/x509/root_darwin.go | 114 +++++++++++++++++++++-
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src/crypto/x509/root_darwin_test.go | 1 +
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4 files changed, 296 insertions(+), 18 deletions(-)
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diff --git a/src/crypto/x509/cert_pool.go b/src/crypto/x509/cert_pool.go
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index 2362e84..dc88ad4 100644
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--- a/src/crypto/x509/cert_pool.go
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+++ b/src/crypto/x509/cert_pool.go
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@@ -52,6 +52,21 @@ func (s *CertPool) findVerifiedParents(cert *Certificate) (parents []int, errCer
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return
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}
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+func (s *CertPool) contains(cert *Certificate) bool {
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+ if s == nil {
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+ return false
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+ }
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+
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+ candidates := s.byName[string(cert.RawSubject)]
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+ for _, c := range candidates {
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+ if s.certs[c].Equal(cert) {
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+ return true
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+ }
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+ }
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+
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+ return false
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+}
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+
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// AddCert adds a certificate to a pool.
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func (s *CertPool) AddCert(cert *Certificate) {
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if cert == nil {
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diff --git a/src/crypto/x509/root_cgo_darwin.go b/src/crypto/x509/root_cgo_darwin.go
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index bf4a5cd..ee94dad 100644
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--- a/src/crypto/x509/root_cgo_darwin.go
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+++ b/src/crypto/x509/root_cgo_darwin.go
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@@ -7,30 +7,28 @@
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package x509
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/*
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-#cgo CFLAGS: -mmacosx-version-min=10.6 -D__MAC_OS_X_VERSION_MAX_ALLOWED=1060
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+#cgo CFLAGS: -mmacosx-version-min=10.6 -D__MAC_OS_X_VERSION_MAX_ALLOWED=1080
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#cgo LDFLAGS: -framework CoreFoundation -framework Security
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+#include <errno.h>
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+#include <sys/sysctl.h>
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+
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#include <CoreFoundation/CoreFoundation.h>
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#include <Security/Security.h>
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-// FetchPEMRoots fetches the system's list of trusted X.509 root certificates.
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-//
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-// On success it returns 0 and fills pemRoots with a CFDataRef that contains the extracted root
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-// certificates of the system. On failure, the function returns -1.
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-//
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-// Note: The CFDataRef returned in pemRoots must be released (using CFRelease) after
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-// we've consumed its content.
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-int FetchPEMRoots(CFDataRef *pemRoots) {
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+// FetchPEMRoots_MountainLion is the version of FetchPEMRoots from Go 1.6
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+// which still works on OS X 10.8 (Mountain Lion).
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+// It lacks support for admin & user cert domains.
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+// See golang.org/issue/16473
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+int FetchPEMRoots_MountainLion(CFDataRef *pemRoots) {
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if (pemRoots == NULL) {
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return -1;
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}
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-
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CFArrayRef certs = NULL;
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OSStatus err = SecTrustCopyAnchorCertificates(&certs);
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if (err != noErr) {
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return -1;
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}
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-
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CFMutableDataRef combinedData = CFDataCreateMutable(kCFAllocatorDefault, 0);
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int i, ncerts = CFArrayGetCount(certs);
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for (i = 0; i < ncerts; i++) {
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@@ -39,7 +37,6 @@ int FetchPEMRoots(CFDataRef *pemRoots) {
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if (cert == NULL) {
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continue;
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}
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-
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// Note: SecKeychainItemExport is deprecated as of 10.7 in favor of SecItemExport.
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// Once we support weak imports via cgo we should prefer that, and fall back to this
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// for older systems.
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@@ -47,16 +44,157 @@ int FetchPEMRoots(CFDataRef *pemRoots) {
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if (err != noErr) {
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continue;
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}
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-
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if (data != NULL) {
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CFDataAppendBytes(combinedData, CFDataGetBytePtr(data), CFDataGetLength(data));
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CFRelease(data);
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}
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}
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-
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CFRelease(certs);
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+ *pemRoots = combinedData;
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+ return 0;
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+}
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+
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+// useOldCode reports whether the running machine is OS X 10.8 Mountain Lion
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+// or older. We only support Mountain Lion and higher, but we'll at least try our
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+// best on older machines and continue to use the old code path.
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+//
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+// See golang.org/issue/16473
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+int useOldCode() {
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+ char str[256];
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+ size_t size = sizeof(str);
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+ memset(str, 0, size);
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+ sysctlbyname("kern.osrelease", str, &size, NULL, 0);
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+ // OS X 10.8 is osrelease "12.*", 10.7 is 11.*, 10.6 is 10.*.
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+ // We never supported things before that.
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+ return memcmp(str, "12.", 3) == 0 || memcmp(str, "11.", 3) == 0 || memcmp(str, "10.", 3) == 0;
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+}
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+// FetchPEMRoots fetches the system's list of trusted X.509 root certificates.
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+//
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+// On success it returns 0 and fills pemRoots with a CFDataRef that contains the extracted root
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+// certificates of the system. On failure, the function returns -1.
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+// Additionally, it fills untrustedPemRoots with certs that must be removed from pemRoots.
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+//
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+// Note: The CFDataRef returned in pemRoots and untrustedPemRoots must
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+// be released (using CFRelease) after we've consumed its content.
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+int FetchPEMRoots(CFDataRef *pemRoots, CFDataRef *untrustedPemRoots) {
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+ if (useOldCode()) {
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+ return FetchPEMRoots_MountainLion(pemRoots);
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+ }
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+
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+ // Get certificates from all domains, not just System, this lets
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+ // the user add CAs to their "login" keychain, and Admins to add
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+ // to the "System" keychain
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+ SecTrustSettingsDomain domains[] = { kSecTrustSettingsDomainSystem,
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+ kSecTrustSettingsDomainAdmin,
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+ kSecTrustSettingsDomainUser };
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+
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+ int numDomains = sizeof(domains)/sizeof(SecTrustSettingsDomain);
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+ if (pemRoots == NULL) {
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+ return -1;
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+ }
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+
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+ // kSecTrustSettingsResult is defined as CFSTR("kSecTrustSettingsResult"),
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+ // but the Go linker's internal linking mode can't handle CFSTR relocations.
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+ // Create our own dynamic string instead and release it below.
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+ CFStringRef policy = CFStringCreateWithCString(NULL, "kSecTrustSettingsResult", kCFStringEncodingUTF8);
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+
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+ CFMutableDataRef combinedData = CFDataCreateMutable(kCFAllocatorDefault, 0);
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+ CFMutableDataRef combinedUntrustedData = CFDataCreateMutable(kCFAllocatorDefault, 0);
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+ for (int i = 0; i < numDomains; i++) {
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+ CFArrayRef certs = NULL;
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+ OSStatus err = SecTrustSettingsCopyCertificates(domains[i], &certs);
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+ if (err != noErr) {
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+ continue;
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+ }
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+
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+ CFIndex numCerts = CFArrayGetCount(certs);
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+ for (int j = 0; j < numCerts; j++) {
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+ CFDataRef data = NULL;
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+ CFErrorRef errRef = NULL;
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+ CFArrayRef trustSettings = NULL;
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+ SecCertificateRef cert = (SecCertificateRef)CFArrayGetValueAtIndex(certs, j);
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+ if (cert == NULL) {
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+ continue;
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+ }
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+ // We only want trusted certs.
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+ int untrusted = 0;
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+ if (i != 0) {
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+ // Certs found in the system domain are always trusted. If the user
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+ // configures "Never Trust" on such a cert, it will also be found in the
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+ // admin or user domain, causing it to be added to untrustedPemRoots. The
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+ // Go code will then clean this up.
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+
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+ // Trust may be stored in any of the domains. According to Apple's
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+ // SecTrustServer.c, "user trust settings overrule admin trust settings",
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+ // so take the last trust settings array we find.
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+ // Skip the system domain since it is always trusted.
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+ for (int k = 1; k < numDomains; k++) {
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+ CFArrayRef domainTrustSettings = NULL;
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+ err = SecTrustSettingsCopyTrustSettings(cert, domains[k], &domainTrustSettings);
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+ if (err == errSecSuccess && domainTrustSettings != NULL) {
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+ if (trustSettings) {
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+ CFRelease(trustSettings);
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+ }
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+ trustSettings = domainTrustSettings;
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+ }
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+ }
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+ if (trustSettings == NULL) {
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+ // "this certificate must be verified to a known trusted certificate"; aka not a root.
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+ continue;
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+ }
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+ for (CFIndex k = 0; k < CFArrayGetCount(trustSettings); k++) {
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+ CFNumberRef cfNum;
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+ CFDictionaryRef tSetting = (CFDictionaryRef)CFArrayGetValueAtIndex(trustSettings, k);
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+ if (CFDictionaryGetValueIfPresent(tSetting, policy, (const void**)&cfNum)){
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+ SInt32 result = 0;
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+ CFNumberGetValue(cfNum, kCFNumberSInt32Type, &result);
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+ // TODO: The rest of the dictionary specifies conditions for evaluation.
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+ if (result == kSecTrustSettingsResultDeny) {
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+ untrusted = 1;
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+ }
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+ }
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+ }
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+ CFRelease(trustSettings);
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+ }
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+ // We only want to add Root CAs, so make sure Subject and Issuer Name match
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+ CFDataRef subjectName = SecCertificateCopyNormalizedSubjectContent(cert, &errRef);
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+ if (errRef != NULL) {
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+ CFRelease(errRef);
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+ continue;
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+ }
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+ CFDataRef issuerName = SecCertificateCopyNormalizedIssuerContent(cert, &errRef);
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+ if (errRef != NULL) {
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+ CFRelease(subjectName);
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+ CFRelease(errRef);
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+ continue;
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+ }
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+ Boolean equal = CFEqual(subjectName, issuerName);
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+ CFRelease(subjectName);
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+ CFRelease(issuerName);
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+ if (!equal) {
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+ continue;
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+ }
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+
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+ // Note: SecKeychainItemExport is deprecated as of 10.7 in favor of SecItemExport.
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+ // Once we support weak imports via cgo we should prefer that, and fall back to this
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+ // for older systems.
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+ err = SecKeychainItemExport(cert, kSecFormatX509Cert, kSecItemPemArmour, NULL, &data);
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+ if (err != noErr) {
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+ continue;
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+ }
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+
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+ if (data != NULL) {
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+ CFMutableDataRef appendTo = untrusted ? combinedUntrustedData : combinedData;
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+ CFDataAppendBytes(appendTo, CFDataGetBytePtr(data), CFDataGetLength(data));
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+ CFRelease(data);
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+ }
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+ }
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+ CFRelease(certs);
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+ }
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+ CFRelease(policy);
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*pemRoots = combinedData;
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+ *untrustedPemRoots = combinedUntrustedData;
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return 0;
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}
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*/
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@@ -67,7 +205,8 @@ func initSystemRoots() {
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roots := NewCertPool()
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var data C.CFDataRef = nil
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- err := C.FetchPEMRoots(&data)
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+ var untrustedData C.CFDataRef = nil
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+ err := C.FetchPEMRoots(&data, &untrustedData)
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if err == -1 {
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return
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}
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@@ -75,5 +214,20 @@ func initSystemRoots() {
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defer C.CFRelease(C.CFTypeRef(data))
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buf := C.GoBytes(unsafe.Pointer(C.CFDataGetBytePtr(data)), C.int(C.CFDataGetLength(data)))
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roots.AppendCertsFromPEM(buf)
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+ if untrustedData == nil {
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+ systemRoots = roots
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+ return
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+ }
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+ defer C.CFRelease(C.CFTypeRef(untrustedData))
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+ buf = C.GoBytes(unsafe.Pointer(C.CFDataGetBytePtr(untrustedData)), C.int(C.CFDataGetLength(untrustedData)))
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+ untrustedRoots := NewCertPool()
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+ untrustedRoots.AppendCertsFromPEM(buf)
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+
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+ trustedRoots := NewCertPool()
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+ for _, c := range roots.certs {
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+ if !untrustedRoots.contains(c) {
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+ trustedRoots.AddCert(c)
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+ }
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+ }
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systemRoots = roots
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}
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diff --git a/src/crypto/x509/root_darwin.go b/src/crypto/x509/root_darwin.go
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index 78de56c..59b303d 100644
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--- a/src/crypto/x509/root_darwin.go
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+++ b/src/crypto/x509/root_darwin.go
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@@ -6,12 +6,27 @@
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package x509
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-import "os/exec"
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+import (
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+ "bytes"
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+ "encoding/pem"
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+ "fmt"
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+ "io/ioutil"
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+ "os"
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+ "os/exec"
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+ "strconv"
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+ "sync"
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+ "syscall"
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+)
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func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) {
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return nil, nil
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}
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+// This code is only used when compiling without cgo.
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+// It is here, instead of root_nocgo_darwin.go, so that tests can check it
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+// even if the tests are run with cgo enabled.
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+// The linker will not include these unused functions in binaries built with cgo enabled.
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+
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func execSecurityRoots() (*CertPool, error) {
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cmd := exec.Command("/usr/bin/security", "find-certificate", "-a", "-p", "/System/Library/Keychains/SystemRootCertificates.keychain")
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data, err := cmd.Output()
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@@ -19,7 +34,100 @@ func execSecurityRoots() (*CertPool, error) {
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return nil, err
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}
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||||||
|
|
||||||
|
- roots := NewCertPool()
|
||||||
|
- roots.AppendCertsFromPEM(data)
|
||||||
|
+ var (
|
||||||
|
+ mu sync.Mutex
|
||||||
|
+ roots = NewCertPool()
|
||||||
|
+ )
|
||||||
|
+ add := func(cert *Certificate) {
|
||||||
|
+ mu.Lock()
|
||||||
|
+ defer mu.Unlock()
|
||||||
|
+ roots.AddCert(cert)
|
||||||
|
+ }
|
||||||
|
+ blockCh := make(chan *pem.Block)
|
||||||
|
+ var wg sync.WaitGroup
|
||||||
|
+ for i := 0; i < 4; i++ {
|
||||||
|
+ wg.Add(1)
|
||||||
|
+ go func() {
|
||||||
|
+ defer wg.Done()
|
||||||
|
+ for block := range blockCh {
|
||||||
|
+ verifyCertWithSystem(block, add)
|
||||||
|
+ }
|
||||||
|
+ }()
|
||||||
|
+ }
|
||||||
|
+ for len(data) > 0 {
|
||||||
|
+ var block *pem.Block
|
||||||
|
+ block, data = pem.Decode(data)
|
||||||
|
+ if block == nil {
|
||||||
|
+ break
|
||||||
|
+ }
|
||||||
|
+ if block.Type != "CERTIFICATE" || len(block.Headers) != 0 {
|
||||||
|
+ continue
|
||||||
|
+ }
|
||||||
|
+ blockCh <- block
|
||||||
|
+ }
|
||||||
|
+ close(blockCh)
|
||||||
|
+ wg.Wait()
|
||||||
|
return roots, nil
|
||||||
|
}
|
||||||
|
+
|
||||||
|
+func verifyCertWithSystem(block *pem.Block, add func(*Certificate)) {
|
||||||
|
+ data := pem.EncodeToMemory(block)
|
||||||
|
+ var cmd *exec.Cmd
|
||||||
|
+ if needsTmpFiles() {
|
||||||
|
+ f, err := ioutil.TempFile("", "cert")
|
||||||
|
+ if err != nil {
|
||||||
|
+ fmt.Fprintf(os.Stderr, "can't create temporary file for cert: %v", err)
|
||||||
|
+ return
|
||||||
|
+ }
|
||||||
|
+ defer os.Remove(f.Name())
|
||||||
|
+ if _, err := f.Write(data); err != nil {
|
||||||
|
+ fmt.Fprintf(os.Stderr, "can't write temporary file for cert: %v", err)
|
||||||
|
+ return
|
||||||
|
+ }
|
||||||
|
+ if err := f.Close(); err != nil {
|
||||||
|
+ fmt.Fprintf(os.Stderr, "can't write temporary file for cert: %v", err)
|
||||||
|
+ return
|
||||||
|
+ }
|
||||||
|
+ cmd = exec.Command("/usr/bin/security", "verify-cert", "-c", f.Name(), "-l")
|
||||||
|
+ } else {
|
||||||
|
+ cmd = exec.Command("/usr/bin/security", "verify-cert", "-c", "/dev/stdin", "-l")
|
||||||
|
+ cmd.Stdin = bytes.NewReader(data)
|
||||||
|
+ }
|
||||||
|
+ if cmd.Run() == nil {
|
||||||
|
+ // Non-zero exit means untrusted
|
||||||
|
+ cert, err := ParseCertificate(block.Bytes)
|
||||||
|
+ if err != nil {
|
||||||
|
+ return
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
+ add(cert)
|
||||||
|
+ }
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+var versionCache struct {
|
||||||
|
+ sync.Once
|
||||||
|
+ major int
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+// needsTmpFiles reports whether the OS is <= 10.11 (which requires real
|
||||||
|
+// files as arguments to the security command).
|
||||||
|
+func needsTmpFiles() bool {
|
||||||
|
+ versionCache.Do(func() {
|
||||||
|
+ release, err := syscall.Sysctl("kern.osrelease")
|
||||||
|
+ if err != nil {
|
||||||
|
+ return
|
||||||
|
+ }
|
||||||
|
+ for i, c := range release {
|
||||||
|
+ if c == '.' {
|
||||||
|
+ release = release[:i]
|
||||||
|
+ break
|
||||||
|
+ }
|
||||||
|
+ }
|
||||||
|
+ major, err := strconv.Atoi(release)
|
||||||
|
+ if err != nil {
|
||||||
|
+ return
|
||||||
|
+ }
|
||||||
|
+ versionCache.major = major
|
||||||
|
+ })
|
||||||
|
+ return versionCache.major <= 15
|
||||||
|
+}
|
||||||
|
diff --git a/src/crypto/x509/root_darwin_test.go b/src/crypto/x509/root_darwin_test.go
|
||||||
|
index cc6d23c..38f314b 100644
|
||||||
|
--- a/src/crypto/x509/root_darwin_test.go
|
||||||
|
+++ b/src/crypto/x509/root_darwin_test.go
|
||||||
|
@@ -29,6 +29,7 @@ func TestSystemRoots(t *testing.T) {
|
||||||
|
// On Mavericks, there are 212 bundled certs; require only
|
||||||
|
// 150 here, since this is just a sanity check, and the
|
||||||
|
// exact number will vary over time.
|
||||||
|
+ t.Logf("got %d roots", len(tt.certs))
|
||||||
|
if want, have := 150, len(tt.certs); have < want {
|
||||||
|
t.Fatalf("want at least %d system roots, have %d", want, have)
|
||||||
|
}
|
||||||
|
--
|
||||||
|
2.5.5
|
||||||
|
|
12
golang.spec
12
golang.spec
|
@ -89,7 +89,7 @@
|
||||||
|
|
||||||
Name: golang
|
Name: golang
|
||||||
Version: 1.5.4
|
Version: 1.5.4
|
||||||
Release: 4%{?dist}
|
Release: 5%{?dist}
|
||||||
Summary: The Go Programming Language
|
Summary: The Go Programming Language
|
||||||
# source tree includes several copies of Mark.Twain-Tom.Sawyer.txt under Public Domain
|
# source tree includes several copies of Mark.Twain-Tom.Sawyer.txt under Public Domain
|
||||||
License: BSD and Public Domain
|
License: BSD and Public Domain
|
||||||
|
@ -144,6 +144,10 @@ Patch215: ./go1.5-zoneinfo_testing_only.patch
|
||||||
# https://bugzilla.redhat.com/show_bug.cgi?id=1271709
|
# https://bugzilla.redhat.com/show_bug.cgi?id=1271709
|
||||||
Patch216: ./golang-1.5.1-a3156aaa12.patch
|
Patch216: ./golang-1.5.1-a3156aaa12.patch
|
||||||
|
|
||||||
|
# Backpor security fixes from 1.6.4
|
||||||
|
Patch217: httpmultipart.patch
|
||||||
|
Patch218: darwinx509trust.patch
|
||||||
|
|
||||||
# Having documentation separate was broken
|
# Having documentation separate was broken
|
||||||
Obsoletes: %{name}-docs < 1.1-4
|
Obsoletes: %{name}-docs < 1.1-4
|
||||||
|
|
||||||
|
@ -275,6 +279,9 @@ Summary: Golang shared object libraries
|
||||||
|
|
||||||
%patch216 -p1
|
%patch216 -p1
|
||||||
|
|
||||||
|
%patch217 -p1
|
||||||
|
%patch218 -p1
|
||||||
|
|
||||||
cp %{SOURCE1} "$(pwd)/src/compress/bzip2/testdata/Mark.Twain-Tom.Sawyer.txt.bz2"
|
cp %{SOURCE1} "$(pwd)/src/compress/bzip2/testdata/Mark.Twain-Tom.Sawyer.txt.bz2"
|
||||||
|
|
||||||
%build
|
%build
|
||||||
|
@ -481,6 +488,9 @@ fi
|
||||||
%endif
|
%endif
|
||||||
|
|
||||||
%changelog
|
%changelog
|
||||||
|
* Tue Dec 06 2016 Jakub Čajka <jcajka@redhat.com> - 1.5.4-5
|
||||||
|
- Resolves: BZ#1401987
|
||||||
|
|
||||||
* Fri Nov 18 2016 Jakub Čajka <jcajka@redhat.com> - 1.5.4-4
|
* Fri Nov 18 2016 Jakub Čajka <jcajka@redhat.com> - 1.5.4-4
|
||||||
- re-enable p224 curve (see BZ#1038683)
|
- re-enable p224 curve (see BZ#1038683)
|
||||||
|
|
||||||
|
|
|
@ -0,0 +1,41 @@
|
||||||
|
From f0fa13b346c1be50aae0eb4349a7c09bdc5826fc Mon Sep 17 00:00:00 2001
|
||||||
|
From: Michael Fraenkel <michael.fraenkel@gmail.com>
|
||||||
|
Date: Wed, 5 Oct 2016 11:27:34 -0400
|
||||||
|
Subject: [PATCH 1/4] [release-branch.go1.6] net/http: multipart ReadForm close
|
||||||
|
file after copy
|
||||||
|
|
||||||
|
Always close the file regardless of whether the copy succeeds or fails.
|
||||||
|
Pass along the close error if the copy succeeds
|
||||||
|
|
||||||
|
Updates #16296
|
||||||
|
|
||||||
|
Change-Id: Ib394655b91d25750f029f17b3846d985f673fb50
|
||||||
|
Reviewed-on: https://go-review.googlesource.com/30410
|
||||||
|
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
|
||||||
|
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
|
||||||
|
TryBot-Result: Gobot Gobot <gobot@golang.org>
|
||||||
|
Reviewed-on: https://go-review.googlesource.com/33640
|
||||||
|
Reviewed-by: Chris Broadfoot <cbro@golang.org>
|
||||||
|
---
|
||||||
|
src/mime/multipart/formdata.go | 4 +++-
|
||||||
|
1 file changed, 3 insertions(+), 1 deletion(-)
|
||||||
|
|
||||||
|
diff --git a/src/mime/multipart/formdata.go b/src/mime/multipart/formdata.go
|
||||||
|
index eee53fc..806b460 100644
|
||||||
|
--- a/src/mime/multipart/formdata.go
|
||||||
|
+++ b/src/mime/multipart/formdata.go
|
||||||
|
@@ -75,8 +75,10 @@ func (r *Reader) ReadForm(maxMemory int64) (f *Form, err error) {
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
- defer file.Close()
|
||||||
|
_, err = io.Copy(file, io.MultiReader(&b, p))
|
||||||
|
+ if cerr := file.Close(); err == nil {
|
||||||
|
+ err = cerr
|
||||||
|
+ }
|
||||||
|
if err != nil {
|
||||||
|
os.Remove(file.Name())
|
||||||
|
return nil, err
|
||||||
|
--
|
||||||
|
2.5.5
|
||||||
|
|
Loading…
Reference in New Issue