isula-build/patch/0030-xattr-support-ima-and-evm.patch

From b179511d671e84c83d895444f1d0bc45152dc3ba Mon Sep 17 00:00:00 2001
From: yangfeiyu <yangfeiyu2@huawei.com>
Date: Sat, 22 Aug 2020 16:44:16 +0800
Subject: [PATCH] xattr: support ima and evm

reason: support ima and evm

Signed-off-by: yangfeiyu <yangfeiyu2@huawei.com>
---
 .../containers/storage/pkg/archive/archive.go | 50 +++++++++----------
 1 file changed, 25 insertions(+), 25 deletions(-)
 mode change 100644 => 100755 vendor/github.com/containers/storage/pkg/archive/archive.go

diff --git a/vendor/github.com/containers/storage/pkg/archive/archive.go b/vendor/github.com/containers/storage/pkg/archive/archive.go
old mode 100644
new mode 100755
index 78744e0..dd3b750
--- a/vendor/github.com/containers/storage/pkg/archive/archive.go
+++ b/vendor/github.com/containers/storage/pkg/archive/archive.go
@@ -396,7 +396,7 @@ func ReadSecurityXattrToTarHeader(path string, hdr *tar.Header) error {
 	if hdr.Xattrs == nil {
 		hdr.Xattrs = make(map[string]string)
 	}
-	for _, xattr := range []string{"security.capability", "security.ima"} {
+	for _, xattr := range []string{"security.capability", "security.ima", "security.evm"} {
 		capability, err := system.Lgetxattr(path, xattr)
 		if err != nil && err != system.EOPNOTSUPP && err != system.ErrNotSupportedPlatform {
 			return errors.Wrapf(err, "failed to read %q attribute from %q", xattr, path)
@@ -693,30 +693,7 @@ func createTarFile(path, extractDir string, hdr *tar.Header, reader io.Reader, L
 			}
 		}
 	}
-
-	var errors []string
-	for key, value := range hdr.Xattrs {
-		if err := system.Lsetxattr(path, key, []byte(value), 0); err != nil {
-			if err == syscall.ENOTSUP || (err == syscall.EPERM && inUserns) {
-				// We ignore errors here because not all graphdrivers support
-				// xattrs *cough* old versions of AUFS *cough*. However only
-				// ENOTSUP should be emitted in that case, otherwise we still
-				// bail.  We also ignore EPERM errors if we are running in a
-				// user namespace.
-				errors = append(errors, err.Error())
-				continue
-			}
-			return err
-		}
-
-	}
-
-	if len(errors) > 0 {
-		logrus.WithFields(logrus.Fields{
-			"errors": errors,
-		}).Warn("ignored xattrs in archive: underlying filesystem doesn't support them")
-	}
-
+	
 	// There is no LChmod, so ignore mode for symlink. Also, this
 	// must happen after chown, as that can modify the file mode
 	if err := handleLChmod(hdr, path, hdrInfo); err != nil {
@@ -746,6 +723,29 @@ func createTarFile(path, extractDir string, hdr *tar.Header, reader io.Reader, L
 			return err
 		}
 	}
+
+	var errors []string
+	for key, value := range hdr.Xattrs {
+		if err := system.Lsetxattr(path, key, []byte(value), 0); err != nil {
+			if err == syscall.ENOTSUP || (err == syscall.EPERM && inUserns) {
+				// We ignore errors here because not all graphdrivers support
+				// xattrs *cough* old versions of AUFS *cough*. However only
+				// ENOTSUP should be emitted in that case, otherwise we still
+				// bail.  We also ignore EPERM errors if we are running in a
+				// user namespace.
+				errors = append(errors, err.Error())
+				continue
+			}
+			return err
+		}
+
+	}
+
+	if len(errors) > 0 {
+		logrus.WithFields(logrus.Fields{
+			"errors": errors,
+		}).Warn("ignored xattrs in archive: underlying filesystem doesn't support them")
+	}
 	return nil
 }
 
-- 
2.23.0