Imported Upstream version 105upstream/105

1 files changed, 97 insertions, 33 deletions

diff --git a/tests/kernel/lp-509180/test.c b/tests/kernel/lp-509180/test.c
index 5b4886b..60cd017 100644
--- a/tests/kernel/lp-509180/test.c
+++ b/tests/kernel/lp-509180/test.c
@@ -26,6 +26,7 @@
 #include <fcntl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <attr/xattr.h>
 
 #define TEST_ERROR	(2)
 
@@ -33,12 +34,99 @@
 
 #define OPT_INC		(0x0001)
 #define OPT_DEC		(0x0002)
+#define OPT_XATTR	(0x0004)
 
 void usage(char *name)
 {
-	fprintf(stderr, "Usage: [-i | -d] file\n");
+	fprintf(stderr, "Usage: [-i | -d] [-x] file\n");
 }
 
+static int test_with_metadata_in_header(int fd, int flags)
+{
+	unsigned char buffer[1];
+
+	if ((lseek(fd, (off_t)OFFSET, SEEK_SET)) < 0) {
+		fprintf(stderr, "Cannot lseek to offset %d: %s\n",
+			OFFSET, strerror(errno));
+		return TEST_ERROR;
+	}
+
+	if (read(fd, buffer, sizeof(buffer)) != sizeof(buffer)) {
+		fprintf(stderr, "Failed to read\n");
+		return TEST_ERROR;
+	}
+
+	if (flags & OPT_INC)
+		buffer[0]++;
+
+	if (flags & OPT_DEC)
+		buffer[0]--;
+
+	if ((lseek(fd, (off_t)OFFSET, SEEK_SET)) < 0) {
+		fprintf(stderr, "Cannot lseek to offset %d: %s\n",
+			OFFSET, strerror(errno));
+		return TEST_ERROR;
+	}
+
+	if (write(fd, buffer, sizeof(buffer)) != sizeof(buffer)) {
+		fprintf(stderr, "Failed to write\n");
+		return TEST_ERROR;
+	}
+
+	return 0;
+}
+
+static int test_with_metadata_in_xattr(int fd, int flags)
+{
+	const char *name = "user.ecryptfs";
+	unsigned char *value = NULL;
+	ssize_t nread, size = 0;
+	int rc = TEST_ERROR;
+
+	size = fgetxattr(fd, name, value, size);
+	if (size < 0) {
+		fprintf(stderr, "Cannot retrieve xattr size: %s\n",
+			strerror(errno));
+		goto out;
+	}
+
+	value = malloc(size);
+	if (!value) {
+		fprintf(stderr,
+			"Cannot allocate memory to store the xattr value\n");
+		goto out;
+	}
+
+	nread = fgetxattr(fd, name, value, size);
+	if (nread != size) {
+		if (nread < 0)
+			fprintf(stderr, "Cannot read xattr: %s\n",
+				strerror(errno));
+		else
+			fprintf(stderr, "Partial xattr read: %zu < %zu\n",
+				nread, size);
+		goto out;
+	}
+
+	if (flags & OPT_INC)
+		value[OFFSET]++;
+
+	if (flags & OPT_DEC)
+		value[OFFSET]--;
+
+	if (fsetxattr(fd, name, value, size, XATTR_REPLACE) < 0) {
+		fprintf(stderr, "Cannot write xattr: %s\n", strerror(errno));
+		goto out;
+	}
+
+	rc = 0;
+out:
+	free(value);
+
+	return rc;
+}
+
+
 /*
  *  https://bugs.launchpad.net/ecryptfs/+bug/509180
  *  Increment/Decrement 9th byte in lower file
@@ -49,14 +137,13 @@ int main(int argc, char **argv)
 	int opt, flags = 0;
 	int rc = 0;
 	char *file;
-	unsigned char buffer[1];
 
 	if (argc < 3) {
 		usage(argv[0]);
 		exit(TEST_ERROR);
 	}
 
-	while ((opt = getopt(argc, argv, "id")) != -1) {
+	while ((opt = getopt(argc, argv, "idx")) != -1) {
 		switch (opt) {
 		case 'i':
 			flags |= OPT_INC;
@@ -64,6 +151,9 @@ int main(int argc, char **argv)
 		case 'd':
 			flags |= OPT_DEC;
 			break;
+		case 'x':
+			flags |= OPT_XATTR;
+			break;
 		default:
 			usage(argv[0]);
 			exit(TEST_ERROR);
@@ -82,36 +172,10 @@ int main(int argc, char **argv)
 		exit(TEST_ERROR);
 	}
 
-	if ((lseek(fd, (off_t)OFFSET, SEEK_SET)) < 0) {
-		fprintf(stderr, "Cannot lseek to offset %d in %s : %s\n",
-			OFFSET, file, strerror(errno));
-		rc = TEST_ERROR;
-		goto tidy;
-	}
-
-	if (read(fd, buffer, sizeof(buffer)) != sizeof(buffer)) {
-		fprintf(stderr, "Failed to read\n");
-		rc = TEST_ERROR;
-		goto tidy;
-	}
-
-	if (flags & OPT_INC)
-		buffer[0]++;
-
-	if (flags & OPT_DEC)
-		buffer[0]--;
-
-	if ((lseek(fd, (off_t)OFFSET, SEEK_SET)) < 0) {
-		fprintf(stderr, "Cannot lseek to offset %d in %s : %s\n",
-			OFFSET, file, strerror(errno));
-		rc = TEST_ERROR;
-		goto tidy;
-	}
-
-	if (write(fd, buffer, sizeof(buffer)) != sizeof(buffer)) {
-		fprintf(stderr, "Failed to write\n");
-		rc = TEST_ERROR;
-	}
+	if (flags & OPT_XATTR)
+		rc = test_with_metadata_in_xattr(fd, flags);
+	else
+		rc = test_with_metadata_in_header(fd, flags);
 
 tidy:
 	if (close(fd) < 0) {