Fix fuzzy test on too large command
Device might return I/O error instead of FAIL message
if command send to device is too large.
Since maximum command size in fastboto protocol is 64 bytes.
The device might only try to read 64 bytes for the bulk transfer,
sending data more than that might result in USB I/O error.
Do proper handler for that in fuzzy_fastboot and reset the USB
if I/O error encounter during the Comman.dTooLarge test
Test: adb reboot fastboot
fuzzy_fastboot --gtest_filter=Fuzz.CommandTooLarge
fuzzy_fastboot --gtest_filter=Fuzz.BadCommandTooLarge
Bug: 212628476
Change-Id: I3612e131de02435ee3ed7d18f2b2d20b50ae6c3f
diff --git a/fastboot/fuzzy_fastboot/main.cpp b/fastboot/fuzzy_fastboot/main.cpp
index b6beaf9..8593adc 100644
--- a/fastboot/fuzzy_fastboot/main.cpp
+++ b/fastboot/fuzzy_fastboot/main.cpp
@@ -890,28 +890,51 @@
TEST_F(Fuzz, BadCommandTooLarge) {
std::string s = RandomString(FB_COMMAND_SZ + 1, rand_legal);
- EXPECT_EQ(fb->RawCommand(s), DEVICE_FAIL)
+ RetCode ret = fb->RawCommand(s);
+ EXPECT_TRUE(ret == DEVICE_FAIL || ret == IO_ERROR)
<< "Device did not respond with failure after sending length " << s.size()
<< " string of random ASCII chars";
+ if (ret == IO_ERROR) EXPECT_EQ(transport->Reset(), 0) << "USB reset failed";
std::string s1 = RandomString(1000, rand_legal);
- EXPECT_EQ(fb->RawCommand(s1), DEVICE_FAIL)
+ ret = fb->RawCommand(s1);
+ EXPECT_TRUE(ret == DEVICE_FAIL || ret == IO_ERROR)
<< "Device did not respond with failure after sending length " << s1.size()
<< " string of random ASCII chars";
+ if (ret == IO_ERROR) EXPECT_EQ(transport->Reset(), 0) << "USB reset failed";
std::string s2 = RandomString(1000, rand_illegal);
- EXPECT_EQ(fb->RawCommand(s2), DEVICE_FAIL)
- << "Device did not respond with failure after sending length " << s1.size()
+ ret = fb->RawCommand(s2);
+ EXPECT_TRUE(ret == DEVICE_FAIL || ret == IO_ERROR)
+ << "Device did not respond with failure after sending length " << s2.size()
<< " string of random non-ASCII chars";
+ if (ret == IO_ERROR) EXPECT_EQ(transport->Reset(), 0) << "USB reset failed";
std::string s3 = RandomString(1000, rand_char);
- EXPECT_EQ(fb->RawCommand(s3), DEVICE_FAIL)
- << "Device did not respond with failure after sending length " << s1.size()
+ ret = fb->RawCommand(s3);
+ EXPECT_TRUE(ret == DEVICE_FAIL || ret == IO_ERROR)
+ << "Device did not respond with failure after sending length " << s3.size()
<< " string of random chars";
+ if (ret == IO_ERROR) EXPECT_EQ(transport->Reset(), 0) << "USB reset failed";
+
+ std::string s4 = RandomString(10 * 1024 * 1024, rand_legal);
+ ret = fb->RawCommand(s);
+ EXPECT_TRUE(ret == DEVICE_FAIL || ret == IO_ERROR)
+ << "Device did not respond with failure after sending length " << s4.size()
+ << " string of random ASCII chars ";
+ if (ret == IO_ERROR) EXPECT_EQ(transport->Reset(), 0) << "USB reset failed";
+
+ ASSERT_TRUE(UsbStillAvailible()) << USB_PORT_GONE;
+ std::string resp;
+ EXPECT_EQ(fb->GetVar("product", &resp), SUCCESS)
+ << "Device is unresponsive to getvar command";
}
TEST_F(Fuzz, CommandTooLarge) {
for (const std::string& s : CMDS) {
std::string rs = RandomString(1000, rand_char);
- EXPECT_EQ(fb->RawCommand(s + rs), DEVICE_FAIL)
- << "Device did not respond with failure after '" << s + rs << "'";
+ RetCode ret;
+ ret = fb->RawCommand(s + rs);
+ EXPECT_TRUE(ret == DEVICE_FAIL || ret == IO_ERROR)
+ << "Device did not respond with failure " << ret << "after '" << s + rs << "'";
+ if (ret == IO_ERROR) EXPECT_EQ(transport->Reset(), 0) << "USB reset failed";
ASSERT_TRUE(UsbStillAvailible()) << USB_PORT_GONE;
std::string resp;
EXPECT_EQ(fb->GetVar("product", &resp), SUCCESS)