test/dm/tee.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2018 Linaro Limited
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <log.h>
   9 #include <malloc.h>
  10 #include <dm/test.h>
  11 #include <sandboxtee.h>
  12 #include <tee.h>
  13 #include <test/test.h>
  14 #include <test/ut.h>
  15 #include <tee/optee_ta_avb.h>
  16
  17 static int open_session(struct udevice *dev, u32 *session)
  18 {
  19         struct tee_open_session_arg arg;
  20         const struct tee_optee_ta_uuid uuid = TA_AVB_UUID;
  21         int rc;
  22
  23         memset(&arg, 0, sizeof(arg));
  24         tee_optee_ta_uuid_to_octets(arg.uuid, &uuid);
  25         rc = tee_open_session(dev, &arg, 0, NULL);
  26         if (rc)
  27                 return rc;
  28         if (arg.ret)
  29                 return -EIO;
  30         *session = arg.session;
  31
  32         return 0;
  33 }
  34
  35 static int invoke_func(struct udevice *dev, u32 session)
  36 {
  37         struct tee_param param = { .attr = TEE_PARAM_ATTR_TYPE_VALUE_OUTPUT };
  38         struct tee_invoke_arg arg;
  39
  40         memset(&arg, 0, sizeof(arg));
  41         arg.session = session;
  42         arg.func = TA_AVB_CMD_READ_LOCK_STATE;
  43
  44         if (tee_invoke_func(dev, &arg, 1, &param) || arg.ret)
  45                 return -1;
  46
  47         return 0;
  48 }
  49
  50 static int match(struct tee_version_data *vers, const void *data)
  51 {
  52         return vers->gen_caps & TEE_GEN_CAP_GP;
  53 }
  54
  55 struct test_tee_vars {
  56         struct tee_shm *reg_shm;
  57         struct tee_shm *alloc_shm;
  58 };
  59
  60 static int test_tee(struct unit_test_state *uts, struct test_tee_vars *vars)
  61 {
  62         struct tee_version_data vers;
  63         struct udevice *dev;
  64         struct sandbox_tee_state *state;
  65         u32 session = 0;
  66         int rc;
  67         u8 data[128];
  68
  69         dev = tee_find_device(NULL, match, NULL, &vers);
  70         ut_assert(dev);
  71         state = dev_get_priv(dev);
  72         ut_assert(!state->session);
  73
  74         rc = open_session(dev, &session);
  75         ut_assert(!rc);
  76         ut_assert(session == state->session);
  77
  78         rc = invoke_func(dev, session);
  79         ut_assert(!rc);
  80
  81         rc = tee_close_session(dev, session);
  82         ut_assert(!rc);
  83         ut_assert(!state->session);
  84
  85         ut_assert(!state->num_shms);
  86         rc = tee_shm_register(dev, data, sizeof(data), 0, &vars->reg_shm);
  87         ut_assert(!rc);
  88         ut_assert(state->num_shms == 1);
  89
  90         rc = tee_shm_alloc(dev, 256, 0, &vars->alloc_shm);
  91         ut_assert(!rc);
  92         ut_assert(state->num_shms == 2);
  93
  94         ut_assert(tee_shm_is_registered(vars->reg_shm, dev));
  95         ut_assert(tee_shm_is_registered(vars->alloc_shm, dev));
  96
  97         tee_shm_free(vars->reg_shm);
  98         vars->reg_shm = NULL;
  99         tee_shm_free(vars->alloc_shm);
 100         vars->alloc_shm = NULL;
 101         ut_assert(!state->num_shms);
 102
 103         return 0;
 104 }
 105
 106 static int dm_test_tee(struct unit_test_state *uts)
 107 {
 108         struct test_tee_vars vars = { NULL, NULL };
 109         int rc = test_tee(uts, &vars);
 110
 111         /* In case test_tee() asserts these may still remain allocated */
 112         tee_shm_free(vars.reg_shm);
 113         tee_shm_free(vars.alloc_shm);
 114
 115         return rc;
 116 }
 117
 118 DM_TEST(dm_test_tee, UT_TESTF_SCAN_FDT);