DPP: Omission of Auth Req attributes for protocol testing

This extends the dpp_test mechanism to allow each of the required
attributes in Authentication Request to be omitted.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

src/common/dpp.c

@@ -1387,9 +1387,23 @@ static struct wpabuf * dpp_auth_build_req(struct dpp_authentication *auth,
 		wpabuf_put_buf(msg, pi);
 	}
 
+#ifdef CONFIG_TESTING_OPTIONS
+	if (dpp_test == DPP_TEST_NO_WRAPPED_DATA_AUTH_REQ) {
+		wpa_printf(MSG_INFO, "DPP: TESTING - no Wrapped Data");
+		goto skip_wrapped_data;
+	}
+#endif /* CONFIG_TESTING_OPTIONS */
+
 	/* Wrapped data ({I-nonce, I-capabilities}k1) */
 	pos = clear;
 
+#ifdef CONFIG_TESTING_OPTIONS
+	if (dpp_test == DPP_TEST_NO_I_NONCE_AUTH_REQ) {
+		wpa_printf(MSG_INFO, "DPP: TESTING - no I-nonce");
+		goto skip_i_nonce;
+	}
+#endif /* CONFIG_TESTING_OPTIONS */
+
 	/* I-nonce */
 	WPA_PUT_LE16(pos, DPP_ATTR_I_NONCE);
 	pos += 2;
@@ -1398,6 +1412,14 @@ static struct wpabuf * dpp_auth_build_req(struct dpp_authentication *auth,
 	os_memcpy(pos, auth->i_nonce, nonce_len);
 	pos += nonce_len;
 
+#ifdef CONFIG_TESTING_OPTIONS
+skip_i_nonce:
+	if (dpp_test == DPP_TEST_NO_I_CAPAB_AUTH_REQ) {
+		wpa_printf(MSG_INFO, "DPP: TESTING - no I-capab");
+		goto skip_i_capab;
+	}
+#endif /* CONFIG_TESTING_OPTIONS */
+
 	/* I-capabilities */
 	WPA_PUT_LE16(pos, DPP_ATTR_I_CAPABILITIES);
 	pos += 2;
@@ -1411,6 +1433,7 @@ static struct wpabuf * dpp_auth_build_req(struct dpp_authentication *auth,
 		wpa_printf(MSG_INFO, "DPP: TESTING - zero I-capabilities");
 		pos[-1] = 0;
 	}
+skip_i_capab:
 #endif /* CONFIG_TESTING_OPTIONS */
 
 	attr_end = wpabuf_put(msg, 0);
@@ -1446,6 +1469,7 @@ static struct wpabuf * dpp_auth_build_req(struct dpp_authentication *auth,
 		wpabuf_put_le16(msg, DPP_ATTR_TESTING);
 		wpabuf_put_le16(msg, 0);
 	}
+skip_wrapped_data:
 #endif /* CONFIG_TESTING_OPTIONS */
 
 	wpa_hexdump_buf(MSG_DEBUG,
@@ -1526,6 +1550,20 @@ struct dpp_authentication * dpp_auth_init(void *msg_ctx,
 		i_pubkey_hash = zero;
 	}
 
+#ifdef CONFIG_TESTING_OPTIONS
+	if (dpp_test == DPP_TEST_NO_R_BOOTSTRAP_KEY_HASH_AUTH_REQ) {
+		wpa_printf(MSG_INFO, "DPP: TESTING - no R-Bootstrap Key Hash");
+		r_pubkey_hash = NULL;
+	} else if (dpp_test == DPP_TEST_NO_I_BOOTSTRAP_KEY_HASH_AUTH_REQ) {
+		wpa_printf(MSG_INFO, "DPP: TESTING - no I-Bootstrap Key Hash");
+		i_pubkey_hash = NULL;
+	} else if (dpp_test == DPP_TEST_NO_I_PROTO_KEY_AUTH_REQ) {
+		wpa_printf(MSG_INFO, "DPP: TESTING - no I-Proto Key");
+		wpabuf_free(pi);
+		pi = NULL;
+	}
+#endif /* CONFIG_TESTING_OPTIONS */
+
 	auth->req_msg = dpp_auth_build_req(auth, pi, nonce_len, r_pubkey_hash,
 					   i_pubkey_hash);
 	if (!auth->req_msg)

src/common/dpp.h

@@ -216,6 +216,12 @@ enum dpp_test_behavior {
 	DPP_TEST_AFTER_WRAPPED_DATA_CONF_RESP = 7,
 	DPP_TEST_ZERO_I_CAPAB = 8,
 	DPP_TEST_ZERO_R_CAPAB = 9,
+	DPP_TEST_NO_R_BOOTSTRAP_KEY_HASH_AUTH_REQ = 10,
+	DPP_TEST_NO_I_BOOTSTRAP_KEY_HASH_AUTH_REQ = 11,
+	DPP_TEST_NO_I_PROTO_KEY_AUTH_REQ = 12,
+	DPP_TEST_NO_I_NONCE_AUTH_REQ = 13,
+	DPP_TEST_NO_I_CAPAB_AUTH_REQ = 14,
+	DPP_TEST_NO_WRAPPED_DATA_AUTH_REQ = 15,
 };
 
 extern enum dpp_test_behavior dpp_test;