Add tests for MTU with renegotiation
This exercises our computation of record expansion.
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 3d61ac3..833b5e3 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -5047,6 +5047,167 @@
-c "found fragmented DTLS handshake message" \
-C "error"
+# the proxy shouldn't drop or mess up anything, so we shouldn't need to resend
+requires_config_enabled MBEDTLS_SSL_PROTO_DTLS
+requires_config_enabled MBEDTLS_RSA_C
+requires_config_enabled MBEDTLS_ECDSA_C
+run_test "DTLS fragmenting: proxy MTU, simple handshake" \
+ -p "$P_PXY mtu=512" \
+ "$P_SRV dtls=1 debug_level=2 auth_mode=required \
+ crt_file=data_files/server7_int-ca.crt \
+ key_file=data_files/server7.key \
+ mtu=512" \
+ "$P_CLI dtls=1 debug_level=2 \
+ crt_file=data_files/server8_int-ca2.crt \
+ key_file=data_files/server8.key \
+ mtu=512" \
+ 0 \
+ -S "resend" \
+ -C "resend" \
+ -s "found fragmented DTLS handshake message" \
+ -c "found fragmented DTLS handshake message" \
+ -C "error"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_DTLS
+requires_config_enabled MBEDTLS_RSA_C
+requires_config_enabled MBEDTLS_ECDSA_C
+requires_config_enabled MBEDTLS_SHA256_C
+requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA
+requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
+requires_config_enabled MBEDTLS_CHACHAPOLY_C
+run_test "DTLS fragmenting: proxy MTU, ChachaPoly renego" \
+ -p "$P_PXY mtu=512" \
+ "$P_SRV dtls=1 debug_level=2 auth_mode=required \
+ crt_file=data_files/server7_int-ca.crt \
+ key_file=data_files/server7.key \
+ exchanges=2 renegotiation=1 \
+ force_ciphersuite=TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256 \
+ mtu=512" \
+ "$P_CLI dtls=1 debug_level=2 \
+ crt_file=data_files/server8_int-ca2.crt \
+ key_file=data_files/server8.key \
+ exchanges=2 renegotiation=1 renegotiate=1 \
+ mtu=512" \
+ 0 \
+ -S "resend" \
+ -C "resend" \
+ -s "found fragmented DTLS handshake message" \
+ -c "found fragmented DTLS handshake message" \
+ -C "error"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_DTLS
+requires_config_enabled MBEDTLS_RSA_C
+requires_config_enabled MBEDTLS_ECDSA_C
+requires_config_enabled MBEDTLS_SHA256_C
+requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA
+requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
+requires_config_enabled MBEDTLS_AES_C
+requires_config_enabled MBEDTLS_GCM_C
+run_test "DTLS fragmenting: proxy MTU, AES-GCM renego" \
+ -p "$P_PXY mtu=512" \
+ "$P_SRV dtls=1 debug_level=2 auth_mode=required \
+ crt_file=data_files/server7_int-ca.crt \
+ key_file=data_files/server7.key \
+ exchanges=2 renegotiation=1 \
+ force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256 \
+ mtu=512" \
+ "$P_CLI dtls=1 debug_level=2 \
+ crt_file=data_files/server8_int-ca2.crt \
+ key_file=data_files/server8.key \
+ exchanges=2 renegotiation=1 renegotiate=1 \
+ mtu=512" \
+ 0 \
+ -S "resend" \
+ -C "resend" \
+ -s "found fragmented DTLS handshake message" \
+ -c "found fragmented DTLS handshake message" \
+ -C "error"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_DTLS
+requires_config_enabled MBEDTLS_RSA_C
+requires_config_enabled MBEDTLS_ECDSA_C
+requires_config_enabled MBEDTLS_SHA256_C
+requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA
+requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
+requires_config_enabled MBEDTLS_AES_C
+requires_config_enabled MBEDTLS_CCM_C
+run_test "DTLS fragmenting: proxy MTU, AES-CCM renego" \
+ -p "$P_PXY mtu=512" \
+ "$P_SRV dtls=1 debug_level=2 auth_mode=required \
+ crt_file=data_files/server7_int-ca.crt \
+ key_file=data_files/server7.key \
+ exchanges=2 renegotiation=1 \
+ force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8 \
+ mtu=512" \
+ "$P_CLI dtls=1 debug_level=2 \
+ crt_file=data_files/server8_int-ca2.crt \
+ key_file=data_files/server8.key \
+ exchanges=2 renegotiation=1 renegotiate=1 \
+ mtu=512" \
+ 0 \
+ -S "resend" \
+ -C "resend" \
+ -s "found fragmented DTLS handshake message" \
+ -c "found fragmented DTLS handshake message" \
+ -C "error"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_DTLS
+requires_config_enabled MBEDTLS_RSA_C
+requires_config_enabled MBEDTLS_ECDSA_C
+requires_config_enabled MBEDTLS_SHA256_C
+requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA
+requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
+requires_config_enabled MBEDTLS_AES_C
+requires_config_enabled MBEDTLS_CIPHER_MODE_CBC
+requires_config_enabled MBEDTLS_SSL_ENCRYPT_THEN_MAC
+run_test "DTLS fragmenting: proxy MTU, AES-CBC EtM renego" \
+ -p "$P_PXY mtu=512" \
+ "$P_SRV dtls=1 debug_level=2 auth_mode=required \
+ crt_file=data_files/server7_int-ca.crt \
+ key_file=data_files/server7.key \
+ exchanges=2 renegotiation=1 \
+ force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256 \
+ mtu=512" \
+ "$P_CLI dtls=1 debug_level=2 \
+ crt_file=data_files/server8_int-ca2.crt \
+ key_file=data_files/server8.key \
+ exchanges=2 renegotiation=1 renegotiate=1 \
+ mtu=512" \
+ 0 \
+ -S "resend" \
+ -C "resend" \
+ -s "found fragmented DTLS handshake message" \
+ -c "found fragmented DTLS handshake message" \
+ -C "error"
+
+requires_config_enabled MBEDTLS_SSL_PROTO_DTLS
+requires_config_enabled MBEDTLS_RSA_C
+requires_config_enabled MBEDTLS_ECDSA_C
+requires_config_enabled MBEDTLS_SHA256_C
+requires_config_enabled MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA
+requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
+requires_config_enabled MBEDTLS_AES_C
+requires_config_enabled MBEDTLS_CIPHER_MODE_CBC
+run_test "DTLS fragmenting: proxy MTU, AES-CBC non-EtM renego" \
+ -p "$P_PXY mtu=512" \
+ "$P_SRV dtls=1 debug_level=2 auth_mode=required \
+ crt_file=data_files/server7_int-ca.crt \
+ key_file=data_files/server7.key \
+ exchanges=2 renegotiation=1 \
+ force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256 etm=0 \
+ mtu=512" \
+ "$P_CLI dtls=1 debug_level=2 \
+ crt_file=data_files/server8_int-ca2.crt \
+ key_file=data_files/server8.key \
+ exchanges=2 renegotiation=1 renegotiate=1 \
+ mtu=512" \
+ 0 \
+ -S "resend" \
+ -C "resend" \
+ -s "found fragmented DTLS handshake message" \
+ -c "found fragmented DTLS handshake message" \
+ -C "error"
+
# Tests for specific things with "unreliable" UDP connection
not_with_valgrind # spurious resend due to timeout