1 /*
2  *
3  * Copyright 2015 gRPC authors.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  */
18 
19 #include "src/core/lib/surface/server.h"
20 #include "test/core/bad_client/bad_client.h"
21 
22 #define PFX_STR "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
23 #define ONE_SETTING_HDR "\x00\x00\x06\x04\x00\x00\x00\x00\x00"
24 
verifier(grpc_server * server,grpc_completion_queue * cq,void * registered_method)25 static void verifier(grpc_server* server, grpc_completion_queue* cq,
26                      void* registered_method) {
27   while (grpc_server_has_open_connections(server)) {
28     GPR_ASSERT(grpc_completion_queue_next(
29                    cq, grpc_timeout_milliseconds_to_deadline(20), nullptr)
30                    .type == GRPC_QUEUE_TIMEOUT);
31   }
32 }
33 
main(int argc,char ** argv)34 int main(int argc, char** argv) {
35   grpc_test_init(argc, argv);
36   grpc_init();
37 
38   /* various partial prefixes */
39   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x00",
40                            GRPC_BAD_CLIENT_DISCONNECT);
41   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x00\x00",
42                            GRPC_BAD_CLIENT_DISCONNECT);
43   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x00\x00\x00",
44                            GRPC_BAD_CLIENT_DISCONNECT);
45   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x06",
46                            GRPC_BAD_CLIENT_DISCONNECT);
47   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x00\x06",
48                            GRPC_BAD_CLIENT_DISCONNECT);
49   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x00\x00\x06",
50                            GRPC_BAD_CLIENT_DISCONNECT);
51   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x00\x00\x00\x04",
52                            GRPC_BAD_CLIENT_DISCONNECT);
53   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x00\x00\x00\x04\x00",
54                            GRPC_BAD_CLIENT_DISCONNECT);
55   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x00\x00\x00\x04\x01",
56                            GRPC_BAD_CLIENT_DISCONNECT);
57   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr, PFX_STR "\x00\x00\x00\x04\xff",
58                            GRPC_BAD_CLIENT_DISCONNECT);
59   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
60                            PFX_STR "\x00\x00\x00\x04\x00\x00",
61                            GRPC_BAD_CLIENT_DISCONNECT);
62   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
63                            PFX_STR "\x00\x00\x00\x04\x00\x00\x00",
64                            GRPC_BAD_CLIENT_DISCONNECT);
65   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
66                            PFX_STR "\x00\x00\x00\x04\x00\x00\x00\x00",
67                            GRPC_BAD_CLIENT_DISCONNECT);
68   /* must not send frames with stream id != 0 */
69   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
70                            PFX_STR "\x00\x00\x00\x04\x00\x00\x00\x00\x01", 0);
71   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
72                            PFX_STR "\x00\x00\x00\x04\x00\x40\x00\x00\x00", 0);
73   /* settings frame must be a multiple of six bytes long */
74   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
75                            PFX_STR "\x00\x00\x01\x04\x00\x00\x00\x00\x00", 0);
76   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
77                            PFX_STR "\x00\x00\x02\x04\x00\x00\x00\x00\x00", 0);
78   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
79                            PFX_STR "\x00\x00\x03\x04\x00\x00\x00\x00\x00", 0);
80   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
81                            PFX_STR "\x00\x00\x04\x04\x00\x00\x00\x00\x00", 0);
82   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
83                            PFX_STR "\x00\x00\x05\x04\x00\x00\x00\x00\x00", 0);
84   /* some settings values are illegal */
85   /* max frame size = 0 */
86   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
87                            PFX_STR ONE_SETTING_HDR "\x00\x05\x00\x00\x00\x00",
88                            GRPC_BAD_CLIENT_DISCONNECT);
89   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
90                            PFX_STR ONE_SETTING_HDR "\x00\x06\xff\xff\xff\xff",
91                            GRPC_BAD_CLIENT_DISCONNECT);
92   /* update intiial window size */
93   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
94                            PFX_STR ONE_SETTING_HDR "\x00\x04\x00\x01\x00\x00",
95                            GRPC_BAD_CLIENT_DISCONNECT);
96   /* ack with data */
97   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
98                            PFX_STR
99                            "\x00\x00\x00\x04\x00\x00\x00\x00\x00"
100                            "\x00\x00\x01\x04\x01\x00\x00\x00\x00",
101                            0);
102   /* settings frame with invalid flags */
103   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
104                            PFX_STR "\x00\x00\x00\x04\x10\x00\x00\x00\x00", 0);
105   /* unknown settings should be ignored */
106   GRPC_RUN_BAD_CLIENT_TEST(verifier, nullptr,
107                            PFX_STR ONE_SETTING_HDR "\x00\x99\x00\x00\x00\x00",
108                            GRPC_BAD_CLIENT_DISCONNECT);
109 
110   grpc_shutdown();
111   return 0;
112 }
113