| Message ID | 20210508035648.18176-2-jarkko@kernel.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [v4,1/2] selftests/sgx: Rename 'eenter' and 'sgx_call_vdso' | expand |
Hi Jarkko, On 5/7/2021 8:56 PM, Jarkko Sakkinen wrote: > Migrate to kselftest harness. Use a fixture test with enclave initialized > and de-initialized for each of the existing three tests, in other words: > > 1. One FIXTURE() for managing the enclave life-cycle. > 2. Three TEST_F()'s, one for each test case. These changes make it easier to add tests and I think it is a valuable addition. > > This gives a leaps better reporting than before. Here's an example > transcript: > > TAP version 13 > 1..3 > 0x0000000000000000 0x0000000000002000 0x03 > 0x0000000000002000 0x0000000000001000 0x05 > 0x0000000000003000 0x0000000000003000 0x03 > ok 1 enclave.unclobbered_vdso > 0x0000000000000000 0x0000000000002000 0x03 > 0x0000000000002000 0x0000000000001000 0x05 > 0x0000000000003000 0x0000000000003000 0x03 > ok 2 enclave.clobbered_vdso > 0x0000000000000000 0x0000000000002000 0x03 > 0x0000000000002000 0x0000000000001000 0x05 > 0x0000000000003000 0x0000000000003000 0x03 > ok 3 enclave.clobbered_vdso_and_user_function > The output claims to conform to TAP13 but it does not seem as though all of the output conforms to TAP13. I assume such output would confuse automated systems. Reinette
On Tue, May 11, 2021 at 11:42:49AM -0700, Reinette Chatre wrote: > Hi Jarkko, > > On 5/7/2021 8:56 PM, Jarkko Sakkinen wrote: > > Migrate to kselftest harness. Use a fixture test with enclave initialized > > and de-initialized for each of the existing three tests, in other words: > > > > 1. One FIXTURE() for managing the enclave life-cycle. > > 2. Three TEST_F()'s, one for each test case. > > These changes make it easier to add tests and I think it is a valuable > addition. > > > > > This gives a leaps better reporting than before. Here's an example > > transcript: > > > > TAP version 13 > > 1..3 > > 0x0000000000000000 0x0000000000002000 0x03 > > 0x0000000000002000 0x0000000000001000 0x05 > > 0x0000000000003000 0x0000000000003000 0x03 > > ok 1 enclave.unclobbered_vdso > > 0x0000000000000000 0x0000000000002000 0x03 > > 0x0000000000002000 0x0000000000001000 0x05 > > 0x0000000000003000 0x0000000000003000 0x03 > > ok 2 enclave.clobbered_vdso > > 0x0000000000000000 0x0000000000002000 0x03 > > 0x0000000000002000 0x0000000000001000 0x05 > > 0x0000000000003000 0x0000000000003000 0x03 > > ok 3 enclave.clobbered_vdso_and_user_function > > > > The output claims to conform to TAP13 but it does not seem as though all of > the output conforms to TAP13. I assume such output would confuse automated > systems. You mean 0x0000000000000000 0x0000000000002000 0x03 0x0000000000002000 0x0000000000001000 0x05 0x0000000000003000 0x0000000000003000 0x03 ? /Jarkko >
Hi Jarkko, On 5/11/2021 6:10 PM, Jarkko Sakkinen wrote: > On Tue, May 11, 2021 at 11:42:49AM -0700, Reinette Chatre wrote: >> Hi Jarkko, >> >> On 5/7/2021 8:56 PM, Jarkko Sakkinen wrote: >>> Migrate to kselftest harness. Use a fixture test with enclave initialized >>> and de-initialized for each of the existing three tests, in other words: >>> >>> 1. One FIXTURE() for managing the enclave life-cycle. >>> 2. Three TEST_F()'s, one for each test case. >> >> These changes make it easier to add tests and I think it is a valuable >> addition. >> >>> >>> This gives a leaps better reporting than before. Here's an example >>> transcript: >>> >>> TAP version 13 >>> 1..3 >>> 0x0000000000000000 0x0000000000002000 0x03 >>> 0x0000000000002000 0x0000000000001000 0x05 >>> 0x0000000000003000 0x0000000000003000 0x03 >>> ok 1 enclave.unclobbered_vdso >>> 0x0000000000000000 0x0000000000002000 0x03 >>> 0x0000000000002000 0x0000000000001000 0x05 >>> 0x0000000000003000 0x0000000000003000 0x03 >>> ok 2 enclave.clobbered_vdso >>> 0x0000000000000000 0x0000000000002000 0x03 >>> 0x0000000000002000 0x0000000000001000 0x05 >>> 0x0000000000003000 0x0000000000003000 0x03 >>> ok 3 enclave.clobbered_vdso_and_user_function >>> >> >> The output claims to conform to TAP13 but it does not seem as though all of >> the output conforms to TAP13. I assume such output would confuse automated >> systems. > > You mean > > 0x0000000000000000 0x0000000000002000 0x03 > 0x0000000000002000 0x0000000000001000 0x05 > 0x0000000000003000 0x0000000000003000 0x03 > > ? Yes Reinette
On Wed, May 12, 2021 at 08:56:03AM -0700, Reinette Chatre wrote: > Hi Jarkko, > > On 5/11/2021 6:10 PM, Jarkko Sakkinen wrote: > > On Tue, May 11, 2021 at 11:42:49AM -0700, Reinette Chatre wrote: > > > Hi Jarkko, > > > > > > On 5/7/2021 8:56 PM, Jarkko Sakkinen wrote: > > > > Migrate to kselftest harness. Use a fixture test with enclave initialized > > > > and de-initialized for each of the existing three tests, in other words: > > > > > > > > 1. One FIXTURE() for managing the enclave life-cycle. > > > > 2. Three TEST_F()'s, one for each test case. > > > > > > These changes make it easier to add tests and I think it is a valuable > > > addition. > > > > > > > > > > > This gives a leaps better reporting than before. Here's an example > > > > transcript: > > > > > > > > TAP version 13 > > > > 1..3 > > > > 0x0000000000000000 0x0000000000002000 0x03 > > > > 0x0000000000002000 0x0000000000001000 0x05 > > > > 0x0000000000003000 0x0000000000003000 0x03 > > > > ok 1 enclave.unclobbered_vdso > > > > 0x0000000000000000 0x0000000000002000 0x03 > > > > 0x0000000000002000 0x0000000000001000 0x05 > > > > 0x0000000000003000 0x0000000000003000 0x03 > > > > ok 2 enclave.clobbered_vdso > > > > 0x0000000000000000 0x0000000000002000 0x03 > > > > 0x0000000000002000 0x0000000000001000 0x05 > > > > 0x0000000000003000 0x0000000000003000 0x03 > > > > ok 3 enclave.clobbered_vdso_and_user_function > > > > > > > > > > The output claims to conform to TAP13 but it does not seem as though all of > > > the output conforms to TAP13. I assume such output would confuse automated > > > systems. > > > > You mean > > > > 0x0000000000000000 0x0000000000002000 0x03 > > 0x0000000000002000 0x0000000000001000 0x05 > > 0x0000000000003000 0x0000000000003000 0x03 > > > > ? > > Yes Thanks, just sanity checking :-) /Jarkko
diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index 43da68388e25..2a29883179e1 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -18,7 +18,7 @@ #include <sys/auxv.h> #include "defines.h" #include "main.h" -#include "../kselftest.h" +#include "../kselftest_harness.h" static const uint64_t MAGIC = 0x1122334455667788ULL; vdso_sgx_enter_enclave_t vdso_sgx_enter_enclave; @@ -107,85 +107,42 @@ static Elf64_Sym *vdso_symtab_get(struct vdso_symtab *symtab, const char *name) return NULL; } -bool report_results(struct sgx_enclave_run *run, int ret, uint64_t result, - const char *test) -{ - bool valid = true; - - if (ret) { - printf("FAIL: %s() returned: %d\n", test, ret); - valid = false; - } - - if (run->function != EEXIT) { - printf("FAIL: %s() function, expected: %u, got: %u\n", test, EEXIT, - run->function); - valid = false; - } - - if (result != MAGIC) { - printf("FAIL: %s(), expected: 0x%lx, got: 0x%lx\n", test, MAGIC, - result); - valid = false; - } - - if (run->user_data) { - printf("FAIL: %s() user data, expected: 0x0, got: 0x%llx\n", - test, run->user_data); - valid = false; - } - - return valid; -} - -static int user_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r9, - struct sgx_enclave_run *run) -{ - run->user_data = 0; - return 0; -} +FIXTURE(enclave) { + struct encl encl; + struct sgx_enclave_run run; +}; -int main(int argc, char *argv[]) +FIXTURE_SETUP(enclave) { - struct sgx_enclave_run run; + Elf64_Sym *sgx_enter_enclave_sym = NULL; struct vdso_symtab symtab; - Elf64_Sym *sgx_enter_enclave_sym; - uint64_t result = 0; - struct encl encl; unsigned int i; void *addr; - int ret; - memset(&run, 0, sizeof(run)); - - if (!encl_load("test_encl.elf", &encl)) { - encl_delete(&encl); + if (!encl_load("test_encl.elf", &self->encl)) { + encl_delete(&self->encl); ksft_exit_skip("cannot load enclaves\n"); } - if (!encl_measure(&encl)) + if (!encl_measure(&self->encl)) goto err; - if (!encl_build(&encl)) + if (!encl_build(&self->encl)) goto err; /* * An enclave consumer only must do this. */ - for (i = 0; i < encl.nr_segments; i++) { - struct encl_segment *seg = &encl.segment_tbl[i]; - - addr = mmap((void *)encl.encl_base + seg->offset, seg->size, - seg->prot, MAP_SHARED | MAP_FIXED, encl.fd, 0); - if (addr == MAP_FAILED) { - perror("mmap() segment failed"); - exit(KSFT_FAIL); - } + for (i = 0; i < self->encl.nr_segments; i++) { + struct encl_segment *seg = &self->encl.segment_tbl[i]; + + addr = mmap((void *)self->encl.encl_base + seg->offset, seg->size, + seg->prot, MAP_SHARED | MAP_FIXED, self->encl.fd, 0); + EXPECT_NE(addr, MAP_FAILED); + if (addr == MAP_FAILED) + goto err; } - memset(&run, 0, sizeof(run)); - run.tcs = encl.encl_base; - /* Get vDSO base address */ addr = (void *)getauxval(AT_SYSINFO_EHDR); if (!addr) @@ -200,32 +157,68 @@ int main(int argc, char *argv[]) vdso_sgx_enter_enclave = addr + sgx_enter_enclave_sym->st_value; - ret = sgx_enter_enclave((void *)&MAGIC, &result, 0, EENTER, - NULL, NULL, &run); - if (!report_results(&run, ret, result, "sgx_enter_enclave_unclobbered")) - goto err; + memset(&self->run, 0, sizeof(self->run)); + self->run.tcs = self->encl.encl_base; +err: + if (!sgx_enter_enclave_sym) + encl_delete(&self->encl); - /* Invoke the vDSO directly. */ - result = 0; - ret = vdso_sgx_enter_enclave((unsigned long)&MAGIC, (unsigned long)&result, - 0, EENTER, 0, 0, &run); - if (!report_results(&run, ret, result, "sgx_enter_enclave")) - goto err; + ASSERT_NE(sgx_enter_enclave_sym, NULL); +} - /* And with an exit handler. */ - run.user_handler = (__u64)user_handler; - run.user_data = 0xdeadbeef; - ret = vdso_sgx_enter_enclave((unsigned long)&MAGIC, (unsigned long)&result, - 0, EENTER, 0, 0, &run); - if (!report_results(&run, ret, result, "user_handler")) - goto err; +FIXTURE_TEARDOWN(enclave) +{ + encl_delete(&self->encl); + vdso_sgx_enter_enclave = NULL; +} - printf("SUCCESS\n"); - encl_delete(&encl); - exit(KSFT_PASS); -err: - encl_delete(&encl); - exit(KSFT_FAIL); +TEST_F(enclave, unclobbered_vdso) +{ + uint64_t result = 0; + + EXPECT_EQ(sgx_enter_enclave((void *)&MAGIC, &result, 0, EENTER, NULL, NULL, &self->run), 0); + + EXPECT_EQ(result, MAGIC); + EXPECT_EQ(self->run.function, EEXIT); + EXPECT_EQ(self->run.user_data, 0); +} + +TEST_F(enclave, clobbered_vdso) +{ + uint64_t result = 0; + + EXPECT_EQ(vdso_sgx_enter_enclave((unsigned long)&MAGIC, (unsigned long)&result, 0, + EENTER, 0, 0, &self->run), 0); + + + EXPECT_EQ(result, MAGIC); + EXPECT_EQ(self->run.function, EEXIT); + EXPECT_EQ(self->run.user_data, 0); } + +static int test_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r9, + struct sgx_enclave_run *run) +{ + run->user_data = 0; + + return 0; +} + +TEST_F(enclave, clobbered_vdso_and_user_function) +{ + uint64_t result = 0; + + self->run.user_handler = (__u64)test_handler; + self->run.user_data = 0xdeadbeef; + + EXPECT_EQ(vdso_sgx_enter_enclave((unsigned long)&MAGIC, (unsigned long)&result, 0, + EENTER, 0, 0, &self->run), 0); + + EXPECT_EQ(result, MAGIC); + EXPECT_EQ(self->run.function, EEXIT); + EXPECT_EQ(self->run.user_data, 0); +} + +TEST_HARNESS_MAIN
Migrate to kselftest harness. Use a fixture test with enclave initialized and de-initialized for each of the existing three tests, in other words: 1. One FIXTURE() for managing the enclave life-cycle. 2. Three TEST_F()'s, one for each test case. This gives a leaps better reporting than before. Here's an example transcript: TAP version 13 1..3 0x0000000000000000 0x0000000000002000 0x03 0x0000000000002000 0x0000000000001000 0x05 0x0000000000003000 0x0000000000003000 0x03 ok 1 enclave.unclobbered_vdso 0x0000000000000000 0x0000000000002000 0x03 0x0000000000002000 0x0000000000001000 0x05 0x0000000000003000 0x0000000000003000 0x03 ok 2 enclave.clobbered_vdso 0x0000000000000000 0x0000000000002000 0x03 0x0000000000002000 0x0000000000001000 0x05 0x0000000000003000 0x0000000000003000 0x03 ok 3 enclave.clobbered_vdso_and_user_function Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org> --- v4: * Refine to take better use of the kselftest harness macros. * Fix: TCS base address was not initialized for a run struct. v3: * Use helper macros. v2: * Add the missing string argument to ksft_test_result_pass() and ksft_test_result_fail() calls. tools/testing/selftests/sgx/main.c | 163 ++++++++++++++--------------- 1 file changed, 78 insertions(+), 85 deletions(-)