U-Boot crashes when doing a 'ping' with the following test scenario:
- All ethernet devices are not probed - "ethaddr" for all ethernet devices are not set - "ethact" is set to a valid ethernet device name
Add a new test case 'dm_test_eth_act' to hit such scenario.
Signed-off-by: Bin Meng bmeng.cn@gmail.com
---
Changes in v2: - New patch to add a new test case against dm eth codes for NULL pointer access
test/dm/eth.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+)
diff --git a/test/dm/eth.c b/test/dm/eth.c index fcfb3e1..6288ae2 100644 --- a/test/dm/eth.c +++ b/test/dm/eth.c @@ -13,11 +13,15 @@ #include <malloc.h> #include <net.h> #include <dm/test.h> +#include <dm/device-internal.h> +#include <dm/uclass-internal.h> #include <asm/eth.h> #include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
+#define DM_TEST_ETH_NUM 4 + static int dm_test_eth(struct unit_test_state *uts) { net_ping_ip = string_to_ip("1.1.2.2"); @@ -82,6 +86,66 @@ static int dm_test_eth_prime(struct unit_test_state *uts) } DM_TEST(dm_test_eth_prime, DM_TESTF_SCAN_FDT);
+/** + * This test case is trying to test the following scenario: + * - All ethernet devices are not probed + * - "ethaddr" for all ethernet devices are not set + * - "ethact" is set to a valid ethernet device name + * + * With Sandbox default test configuration, all ethernet devices are + * probed after power-up, so we have to manually create such scenario: + * - Remove all ethernet devices + * - Remove all "ethaddr" environment variables + * - Set "ethact" to the first ethernet device + * + * Do a ping test to see if anything goes wrong. + */ +static int dm_test_eth_act(struct unit_test_state *uts) +{ + struct udevice *dev[DM_TEST_ETH_NUM]; + const char *ethname[DM_TEST_ETH_NUM] = {"eth@10002000", "eth@10003000", + "sbe5", "eth@10004000"}; + const char *addrname[DM_TEST_ETH_NUM] = {"ethaddr", "eth5addr", + "eth3addr", "eth1addr"}; + char ethaddr[DM_TEST_ETH_NUM][18]; + int i; + + net_ping_ip = string_to_ip("1.1.2.2"); + + /* Prepare the test scenario */ + for (i = 0; i < DM_TEST_ETH_NUM; i++) { + ut_assertok(uclass_find_device_by_name(UCLASS_ETH, + ethname[i], &dev[i])); + ut_assertok(device_remove(dev[i])); + + /* Invalidate MAC address */ + strcpy(ethaddr[i], getenv(addrname[i])); + /* Must disable access protection for ethaddr before clearing */ + setenv(".flags", addrname[i]); + setenv(addrname[i], NULL); + } + + /* Set ethact to "eth@10002000" */ + setenv("ethact", ethname[0]); + + /* Segment fault might happen if something is wrong */ + ut_asserteq(-ENODEV, net_loop(PING)); + + for (i = 0; i < DM_TEST_ETH_NUM; i++) { + /* Restore the env */ + setenv(".flags", addrname[i]); + setenv(addrname[i], ethaddr[i]); + + /* Probe the device again */ + ut_assertok(device_probe(dev[i])); + } + setenv(".flags", NULL); + setenv("ethact", NULL); + + return 0; +} +DM_TEST(dm_test_eth_act, DM_TESTF_SCAN_FDT); + /* The asserts include a return on fail; cleanup in the caller */ static int _dm_test_eth_rotate1(struct unit_test_state *uts) {