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1 #ifndef HEADER_CURL_HTTP2_H
2 #define HEADER_CURL_HTTP2_H
3 /***************************************************************************
4  *                                  _   _ ____  _
5  *  Project                     ___| | | |  _ \| |
6  *                             / __| | | | |_) | |
7  *                            | (__| |_| |  _ <| |___
8  *                             \___|\___/|_| \_\_____|
9  *
10  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
11  *
12  * This software is licensed as described in the file COPYING, which
13  * you should have received as part of this distribution. The terms
14  * are also available at https://curl.se/docs/copyright.html.
15  *
16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17  * copies of the Software, and permit persons to whom the Software is
18  * furnished to do so, under the terms of the COPYING file.
19  *
20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21  * KIND, either express or implied.
22  *
23  * SPDX-License-Identifier: curl
24  *
25  ***************************************************************************/
26 
27 #include "curl_setup.h"
28 
29 #ifdef USE_NGHTTP2
30 #include "http.h"
31 
32 /* value for MAX_CONCURRENT_STREAMS we use until we get an updated setting
33    from the peer */
34 #define DEFAULT_MAX_CONCURRENT_STREAMS 100
35 
36 /*
37  * Store nghttp2 version info in this buffer.
38  */
39 void Curl_http2_ver(char *p, size_t len);
40 
41 CURLcode Curl_http2_request_upgrade(struct dynbuf *req,
42                                     struct Curl_easy *data);
43 
44 /* returns true if the HTTP/2 stream error was HTTP_1_1_REQUIRED */
45 bool Curl_h2_http_1_1_error(struct Curl_easy *data);
46 
47 bool Curl_http2_may_switch(struct Curl_easy *data);
48 
49 CURLcode Curl_http2_switch(struct Curl_easy *data);
50 
51 CURLcode Curl_http2_switch_at(struct Curl_cfilter *cf, struct Curl_easy *data);
52 
53 CURLcode Curl_http2_upgrade(struct Curl_easy *data,
54                             struct connectdata *conn, int sockindex,
55                             const char *ptr, size_t nread);
56 
57 void *Curl_nghttp2_malloc(size_t size, void *user_data);
58 void Curl_nghttp2_free(void *ptr, void *user_data);
59 void *Curl_nghttp2_calloc(size_t nmemb, size_t size, void *user_data);
60 void *Curl_nghttp2_realloc(void *ptr, size_t size, void *user_data);
61 
62 extern struct Curl_cftype Curl_cft_nghttp2;
63 
64 #else /* USE_NGHTTP2 */
65 
66 #define Curl_http2_may_switch(a) FALSE
67 
68 #define Curl_http2_request_upgrade(x,y) CURLE_UNSUPPORTED_PROTOCOL
69 #define Curl_http2_switch(a)            CURLE_UNSUPPORTED_PROTOCOL
70 #define Curl_http2_upgrade(a,b,c,d,e)   CURLE_UNSUPPORTED_PROTOCOL
71 #define Curl_h2_http_1_1_error(x) 0
72 #endif
73 
74 #endif /* HEADER_CURL_HTTP2_H */
75