1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
#include "s2n_test.h"
#include "tls/extensions/s2n_ems.h"
#include "tls/extensions/s2n_extension_list.h"
#include "tls/s2n_connection.h"
int main(int argc, char **argv)
{
BEGIN_TEST();
/* s2n_server_ems_should_send */
{
struct s2n_connection *conn = s2n_connection_new(S2N_SERVER);
EXPECT_NOT_NULL(conn);
/* Protocol version is too high */
conn->actual_protocol_version = S2N_TLS13;
EXPECT_FALSE(s2n_server_ems_extension.should_send(conn));
/* Protocol version is less than TLS1.3 */
conn->actual_protocol_version = S2N_TLS12;
EXPECT_TRUE(s2n_server_ems_extension.should_send(conn));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test that the ems_negotiated flag is set when the EMS extension is received */
{
struct s2n_connection *server_conn = s2n_connection_new(S2N_SERVER);
EXPECT_NOT_NULL(server_conn);
struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT);
EXPECT_NOT_NULL(client_conn);
/* This extension is only relevant for TLS1.2 */
server_conn->actual_protocol_version = S2N_TLS12;
client_conn->actual_protocol_version = S2N_TLS12;
DEFER_CLEANUP(struct s2n_stuffer stuffer, s2n_stuffer_free);
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
EXPECT_SUCCESS(s2n_extension_list_send(S2N_EXTENSION_LIST_CLIENT_HELLO, client_conn, &stuffer));
EXPECT_FALSE(client_conn->ems_negotiated);
EXPECT_SUCCESS(s2n_extension_list_recv(S2N_EXTENSION_LIST_CLIENT_HELLO, server_conn, &stuffer));
EXPECT_TRUE(server_conn->ems_negotiated);
EXPECT_SUCCESS(s2n_extension_list_send(S2N_EXTENSION_LIST_SERVER_HELLO_DEFAULT, server_conn, &stuffer));
EXPECT_SUCCESS(s2n_extension_list_recv(S2N_EXTENSION_LIST_SERVER_HELLO_DEFAULT, client_conn, &stuffer));
EXPECT_TRUE(client_conn->ems_negotiated);
EXPECT_SUCCESS(s2n_connection_free(server_conn));
EXPECT_SUCCESS(s2n_connection_free(client_conn));
};
/* s2n_server_ems_is_missing */
{
struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT);
EXPECT_NOT_NULL(conn);
/**
*= https://tools.ietf.org/rfc/rfc7627#section-5.3
*= type=test
*# If the original session used the extension but the new ServerHello
*# does not contain the extension, the client MUST abort the
*# handshake.
**/
conn->ems_negotiated = true;
EXPECT_FAILURE_WITH_ERRNO(s2n_server_ems_extension.if_missing(conn), S2N_ERR_MISSING_EXTENSION);
conn->ems_negotiated = false;
EXPECT_SUCCESS(s2n_server_ems_extension.if_missing(conn));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* s2n_client_ems_should_send */
{
struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT);
EXPECT_NOT_NULL(conn);
/* In the default case we should always be sending this extension */
EXPECT_TRUE(s2n_client_ems_extension.should_send(conn));
conn->set_session = true;
conn->ems_negotiated = true;
/* If we have set a ticket on the connection we only send this extension
* if the previous session negotiated EMS. */
EXPECT_TRUE(s2n_client_ems_extension.should_send(conn));
/* Don't send this extension if we have set a ticket on the connection
* and the previous session did not negotiate EMS */
conn->ems_negotiated = false;
EXPECT_FALSE(s2n_client_ems_extension.should_send(conn));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
END_TEST();
}
|
