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xattr api cleanup 

(cherry picked from commit da59acd8ca)
This commit is contained in:
Kihwal Lee 2018-02-15 11:28:45 -06:00
parent 07c7df4b26
commit b725fd6924
2 changed files with 51 additions and 15 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirXAttrOp.java
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@ -136,8 +136,7 @@ class FSDirXAttrOp {
final boolean isRawPath = FSDirectory.isReservedRawName(src); final boolean isRawPath = FSDirectory.isReservedRawName(src);
final INodesInPath iip = fsd.resolvePath(pc, src, DirOp.READ); final INodesInPath iip = fsd.resolvePath(pc, src, DirOp.READ);
if (fsd.isPermissionEnabled()) { if (fsd.isPermissionEnabled()) {
/* To access xattr names, you need EXECUTE in the owning directory. */ fsd.checkPathAccess(pc, iip, FsAction.READ);
fsd.checkParentAccess(pc, iip, FsAction.EXECUTE);
} }
final List<XAttr> all = FSDirXAttrOp.getXAttrs(fsd, iip); final List<XAttr> all = FSDirXAttrOp.getXAttrs(fsd, iip);
return XAttrPermissionFilter. return XAttrPermissionFilter.

63
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSXAttrBaseTest.java
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@ -842,28 +842,37 @@ public class FSXAttrBaseTest {
} }
/* /*
* Check that execute/scan access to the parent dir is sufficient to get * Check that execute/scan access to the parent dir is not
* xattr names. * sufficient to get xattr names.
*/ */
fs.setPermission(path, new FsPermission((short) 0701)); fs.setPermission(path, new FsPermission((short) 0701));
user.doAs(new PrivilegedExceptionAction<Object>() { user.doAs(new PrivilegedExceptionAction<Object>() {
@Override @Override
public Object run() throws Exception { public Object run() throws Exception {
try {
final FileSystem userFs = dfsCluster.getFileSystem(); final FileSystem userFs = dfsCluster.getFileSystem();
userFs.listXAttrs(childDir); userFs.listXAttrs(childDir);
return null; fail("expected AccessControlException");
} catch (AccessControlException ace) {
GenericTestUtils.assertExceptionContains("Permission denied", ace);
} }
return null;
}
}); });
/* /*
* Test that xattrs in the "trusted" namespace are filtered correctly. * Test that xattrs in the "trusted" namespace are filtered correctly.
*/ */
// Allow the user to read child path.
fs.setPermission(childDir, new FsPermission((short) 0704));
fs.setXAttr(childDir, "trusted.myxattr", "1234".getBytes()); fs.setXAttr(childDir, "trusted.myxattr", "1234".getBytes());
user.doAs(new PrivilegedExceptionAction<Object>() { user.doAs(new PrivilegedExceptionAction<Object>() {
@Override @Override
public Object run() throws Exception { public Object run() throws Exception {
final FileSystem userFs = dfsCluster.getFileSystem(); final FileSystem userFs = dfsCluster.getFileSystem();
assertTrue(userFs.listXAttrs(childDir).size() == 1); List<String> xattrs = userFs.listXAttrs(childDir);
assertTrue(xattrs.size() == 1);
assertEquals(name1, xattrs.get(0));
return null; return null;
} }
}); });
@ -1108,20 +1117,48 @@ public class FSXAttrBaseTest {
} }
/* /*
* Test that only user who have parent directory execute access * Test that user who have parent directory execute access
* can see raw.* xattrs returned from listXAttr * can also not see raw.* xattrs returned from listXAttr
*/ */
// non-raw path try {
final List<String> xattrNames = userFs.listXAttrs(path); // non-raw path
assertTrue(xattrNames.size() == 0); userFs.listXAttrs(path);
fail("listXAttr should have thrown AccessControlException");
} catch (AccessControlException ace) {
// expected
}
// raw path try {
List<String> rawXattrs = userFs.listXAttrs(rawPath); // raw path
assertTrue(rawXattrs.size() == 1); userFs.listXAttrs(rawPath);
assertTrue(rawXattrs.get(0).equals(raw1)); fail("listXAttr should have thrown AccessControlException");
} catch (AccessControlException ace) {
// expected
}
return null; return null;
} }
}); });
/*
Test user who have read access can list xattrs in "raw.*" namespace
*/
fs.setPermission(path, new FsPermission((short) 0751));
final Path childDir = new Path(path, "child" + pathCount);
FileSystem.mkdirs(fs, childDir, FsPermission.createImmutable((short)
0704));
final Path rawChildDir =
new Path("/.reserved/raw" + childDir.toString());
fs.setXAttr(rawChildDir, raw1, value1);
user.doAs(new PrivilegedExceptionAction<Object>() {
@Override
public Object run() throws Exception {
final FileSystem userFs = dfsCluster.getFileSystem();
// raw path
List<String> xattrs = userFs.listXAttrs(rawChildDir);
assertEquals(1, xattrs.size());
assertEquals(raw1, xattrs.get(0));
return null;
}
});
fs.removeXAttr(rawPath, raw1); fs.removeXAttr(rawPath, raw1);
} }