Start to use struct osmo_auth_vector from gsm_auth_tuple
Rather than having a 'private' structure for kc, sres and rand, we
now finally (with 4 years delay) use osmo_auth_vector from libosmogsm,
which encapsulates authentication vectors that can be either GSM
triplets or UMTS quintuples or a combination of both.
gsm_auth_tuple becomes a wrapper around osmo_auth_vector, adding
use_count and key_seq to it.
key_seq is no longer initialized inside gprs_gsup_messages.c, as there
is no CKSN / key_seq inside the message anyway. If a usre of the code
needs key_seq, they need to manage it themselves.
diff --git a/openbsc/src/libmsc/auth.c b/openbsc/src/libmsc/auth.c
index f30d56d..9191ae8 100644
--- a/openbsc/src/libmsc/auth.c
+++ b/openbsc/src/libmsc/auth.c
@@ -54,9 +54,9 @@
}
for (i=0; i<4; i++)
- atuple->sres[i] = atuple->rand[i] ^ ainfo->a3a8_ki[i];
+ atuple->vec.sres[i] = atuple->vec.rand[i] ^ ainfo->a3a8_ki[i];
for (i=4; i<12; i++)
- atuple->kc[i-4] = atuple->rand[i] ^ ainfo->a3a8_ki[i];
+ atuple->vec.kc[i-4] = atuple->vec.rand[i] ^ ainfo->a3a8_ki[i];
return 0;
}
@@ -71,7 +71,7 @@
return -1;
}
- comp128(ainfo->a3a8_ki, atuple->rand, atuple->sres, atuple->kc);
+ comp128(ainfo->a3a8_ki, atuple->vec.rand, atuple->vec.sres, atuple->vec.kc);
return 0;
}
@@ -122,7 +122,7 @@
}
atuple->use_count = 1;
- if (RAND_bytes(atuple->rand, sizeof(atuple->rand)) != 1) {
+ if (RAND_bytes(atuple->vec.rand, sizeof(atuple->vec.rand)) != 1) {
LOGP(DMM, LOGL_NOTICE, "RAND_bytes failed, can't generate new auth tuple\n");
return AUTH_ERROR;
}
diff --git a/openbsc/src/libmsc/db.c b/openbsc/src/libmsc/db.c
index 267b5ef..a23ec89 100644
--- a/openbsc/src/libmsc/db.c
+++ b/openbsc/src/libmsc/db.c
@@ -700,25 +700,25 @@
atuple->key_seq = dbi_result_get_ulonglong(result, "key_seq");
len = dbi_result_get_field_length(result, "rand");
- if (len != sizeof(atuple->rand))
+ if (len != sizeof(atuple->vec.rand))
goto err_size;
blob = dbi_result_get_binary(result, "rand");
- memcpy(atuple->rand, blob, len);
+ memcpy(atuple->vec.rand, blob, len);
len = dbi_result_get_field_length(result, "sres");
- if (len != sizeof(atuple->sres))
+ if (len != sizeof(atuple->vec.sres))
goto err_size;
blob = dbi_result_get_binary(result, "sres");
- memcpy(atuple->sres, blob, len);
+ memcpy(atuple->vec.sres, blob, len);
len = dbi_result_get_field_length(result, "kc");
- if (len != sizeof(atuple->kc))
+ if (len != sizeof(atuple->vec.kc))
goto err_size;
blob = dbi_result_get_binary(result, "kc");
- memcpy(atuple->kc, blob, len);
+ memcpy(atuple->vec.kc, blob, len);
dbi_result_free(result);
@@ -759,11 +759,11 @@
/* Update / Insert */
dbi_conn_quote_binary_copy(conn,
- atuple->rand, sizeof(atuple->rand), &rand_str);
+ atuple->vec.rand, sizeof(atuple->vec.rand), &rand_str);
dbi_conn_quote_binary_copy(conn,
- atuple->sres, sizeof(atuple->sres), &sres_str);
+ atuple->vec.sres, sizeof(atuple->vec.sres), &sres_str);
dbi_conn_quote_binary_copy(conn,
- atuple->kc, sizeof(atuple->kc), &kc_str);
+ atuple->vec.kc, sizeof(atuple->vec.kc), &kc_str);
if (!upd) {
result = dbi_conn_queryf(conn,
diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c
index 05cb886..f02f784 100644
--- a/openbsc/src/libmsc/gsm_04_08.c
+++ b/openbsc/src/libmsc/gsm_04_08.c
@@ -234,11 +234,11 @@
/* Then do whatever is needed ... */
if (rc == AUTH_DO_AUTH_THEN_CIPH) {
/* Start authentication */
- return gsm48_tx_mm_auth_req(conn, op->atuple.rand, op->atuple.key_seq);
+ return gsm48_tx_mm_auth_req(conn, op->atuple.vec.rand, op->atuple.key_seq);
} else if (rc == AUTH_DO_CIPH) {
/* Start ciphering directly */
return gsm0808_cipher_mode(conn, net->a5_encryption,
- op->atuple.kc, 8, 0);
+ op->atuple.vec.kc, 8, 0);
}
return -EINVAL; /* not reached */
@@ -1102,12 +1102,12 @@
}
/* Validate SRES */
- if (memcmp(conn->sec_operation->atuple.sres, ar->sres,4)) {
+ if (memcmp(conn->sec_operation->atuple.vec.sres, ar->sres,4)) {
int rc;
gsm_cbfn *cb = conn->sec_operation->cb;
DEBUGPC(DMM, "Invalid (expected %s)\n",
- osmo_hexdump(conn->sec_operation->atuple.sres, 4));
+ osmo_hexdump(conn->sec_operation->atuple.vec.sres, 4));
if (cb)
cb(GSM_HOOK_RR_SECURITY, GSM_SECURITY_AUTH_FAILED,
@@ -1122,7 +1122,7 @@
/* Start ciphering */
return gsm0808_cipher_mode(conn, net->a5_encryption,
- conn->sec_operation->atuple.kc, 8, 0);
+ conn->sec_operation->atuple.vec.kc, 8, 0);
}
/* Receive a GSM 04.08 Mobility Management (MM) message */
diff --git a/openbsc/src/libmsc/vty_interface_layer3.c b/openbsc/src/libmsc/vty_interface_layer3.c
index 790fedf..4c2088a 100644
--- a/openbsc/src/libmsc/vty_interface_layer3.c
+++ b/openbsc/src/libmsc/vty_interface_layer3.c
@@ -94,13 +94,13 @@
vty_out(vty, " seq # : %d%s",
atuple.key_seq, VTY_NEWLINE);
vty_out(vty, " RAND : %s%s",
- osmo_hexdump(atuple.rand, sizeof(atuple.rand)),
+ osmo_hexdump(atuple.vec.rand, sizeof(atuple.vec.rand)),
VTY_NEWLINE);
vty_out(vty, " SRES : %s%s",
- osmo_hexdump(atuple.sres, sizeof(atuple.sres)),
+ osmo_hexdump(atuple.vec.sres, sizeof(atuple.vec.sres)),
VTY_NEWLINE);
vty_out(vty, " Kc : %s%s",
- osmo_hexdump(atuple.kc, sizeof(atuple.kc)),
+ osmo_hexdump(atuple.vec.kc, sizeof(atuple.vec.kc)),
VTY_NEWLINE);
}