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auc_3g_test: allow to inc fake rand bytes upon rand request 

Preparing for upcoming unit test, in a separate commit for cosmetic reasons
(setting the flag to false across the code).

Change-Id: I6b9899cd898eecc95b244432f416041b194a7187
This commit is contained in:
Neels Hofmeyr 2017-02-21 22:48:35 +01:00
parent 569d322597
commit 3aa3c103c2
1 changed files with 16 additions and 10 deletions
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26
tests/auc/auc_3g_test.c
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@ -88,11 +88,23 @@ char *vec_str(const struct osmo_auth_vector *vec)
} while (0)
uint8_t fake_rand[16] = { 0 };
bool fake_rand_fixed = true;
void next_rand(const char *hexstr, bool fixed)
{
osmo_hexparse(hexstr, fake_rand, sizeof(fake_rand));
fake_rand_fixed = fixed;
}
int rand_get(uint8_t *rand, unsigned int len)
{
int i;
OSMO_ASSERT(len <= sizeof(fake_rand));
memcpy(rand, fake_rand, len);
if (!fake_rand_fixed) {
for (i = 0; i < len; i++)
fake_rand[i] += 0x11;
}
return len;
}
@ -115,8 +127,7 @@ static void test_gen_vectors_2g_only(void)
aud3g = (struct osmo_sub_auth_data){ 0 };
osmo_hexparse("39fa2f4e3d523d8619a73b4f65c3e14d",
fake_rand, sizeof(fake_rand));
next_rand("39fa2f4e3d523d8619a73b4f65c3e14d", true);
vec = (struct osmo_auth_vector){ {0} };
VERBOSE_ASSERT(aud3g.u.umts.sqn, == 0, "%"PRIu64);
@ -184,9 +195,7 @@ static void test_gen_vectors_2g_plus_3g(void)
aud3g.u.umts.k, sizeof(aud3g.u.umts.k));
osmo_hexparse("FB2A3D1B360F599ABAB99DB8669F8308",
aud3g.u.umts.opc, sizeof(aud3g.u.umts.opc));
osmo_hexparse("39fa2f4e3d523d8619a73b4f65c3e14d",
fake_rand, sizeof(fake_rand));
next_rand("39fa2f4e3d523d8619a73b4f65c3e14d", true);
vec = (struct osmo_auth_vector){ {0} };
VERBOSE_ASSERT(aud3g.u.umts.sqn, == 0, "%"PRIu64);
@ -252,9 +261,7 @@ static void test_gen_vectors_3g_only(void)
aud3g.u.umts.k, sizeof(aud3g.u.umts.k));
osmo_hexparse("FB2A3D1B360F599ABAB99DB8669F8308",
aud3g.u.umts.opc, sizeof(aud3g.u.umts.opc));
osmo_hexparse("39fa2f4e3d523d8619a73b4f65c3e14d",
fake_rand, sizeof(fake_rand));
next_rand("39fa2f4e3d523d8619a73b4f65c3e14d", true);
vec = (struct osmo_auth_vector){ {0} };
VERBOSE_ASSERT(aud3g.u.umts.sqn, == 0, "%"PRIu64);
@ -353,8 +360,7 @@ static void test_gen_vectors_3g_only(void)
osmo_hexparse("39fa2f4e3d523d8619a73b4f65c3e14d",
rand_auts, sizeof(rand_auts));
/* new RAND token for the next key */
osmo_hexparse("897210a0f7de278f0b8213098e098a3f",
fake_rand, sizeof(fake_rand));
next_rand("897210a0f7de278f0b8213098e098a3f", true);
rc = auc_compute_vectors(&vec, 1, &aud2g, &aud3g, rand_auts, auts);
VERBOSE_ASSERT(rc, == 1, "%d");
/* The USIM's last sqn was 23, the calculated vector was 24, hence the