| 1 | #ifndef HEADER_CURL_VQUIC_QUIC_INT_H
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| 2 | #define HEADER_CURL_VQUIC_QUIC_INT_H
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| 3 | /***************************************************************************
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| 4 | * _ _ ____ _
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| 5 | * Project ___| | | | _ \| |
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| 6 | * / __| | | | |_) | |
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| 7 | * | (__| |_| | _ <| |___
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| 8 | * \___|\___/|_| \_\_____|
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| 9 | *
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| 10 | * Copyright (C) Daniel Stenberg, <[email protected]>, et al.
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| 11 | *
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| 12 | * This software is licensed as described in the file COPYING, which
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| 13 | * you should have received as part of this distribution. The terms
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| 14 | * are also available at https://curl.se/docs/copyright.html.
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| 15 | *
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| 16 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 17 | * copies of the Software, and permit persons to whom the Software is
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| 18 | * furnished to do so, under the terms of the COPYING file.
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| 19 | *
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| 20 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 21 | * KIND, either express or implied.
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| 22 | *
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| 23 | * SPDX-License-Identifier: curl
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| 24 | *
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| 25 | ***************************************************************************/
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| 26 |
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| 27 | #include "curl_setup.h"
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| 28 | #include "bufq.h"
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| 29 |
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| 30 | #ifdef ENABLE_QUIC
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| 31 |
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| 32 | #define MAX_PKT_BURST 10
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| 33 | #define MAX_UDP_PAYLOAD_SIZE 1452
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| 34 | /* Default QUIC connection timeout we announce from our side */
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| 35 | #define CURL_QUIC_MAX_IDLE_MS (120 * 1000)
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| 36 |
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| 37 | struct cf_quic_ctx {
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| 38 | curl_socket_t sockfd; /* connected UDP socket */
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| 39 | struct sockaddr_storage local_addr; /* address socket is bound to */
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| 40 | socklen_t local_addrlen; /* length of local address */
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| 41 |
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| 42 | struct bufq sendbuf; /* buffer for sending one or more packets */
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| 43 | struct curltime first_byte_at; /* when first byte was recvd */
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| 44 | struct curltime last_op; /* last (attempted) send/recv operation */
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| 45 | struct curltime last_io; /* last successful socket IO */
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| 46 | size_t gsolen; /* length of individual packets in send buf */
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| 47 | size_t split_len; /* if != 0, buffer length after which GSO differs */
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| 48 | size_t split_gsolen; /* length of individual packets after split_len */
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| 49 | #ifdef DEBUGBUILD
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| 50 | int wblock_percent; /* percent of writes doing EAGAIN */
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| 51 | #endif
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| 52 | BIT(got_first_byte); /* if first byte was received */
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| 53 | BIT(no_gso); /* do not use gso on sending */
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| 54 | };
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| 55 |
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| 56 | CURLcode vquic_ctx_init(struct cf_quic_ctx *qctx);
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| 57 | void vquic_ctx_free(struct cf_quic_ctx *qctx);
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| 58 |
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| 59 | void vquic_ctx_update_time(struct cf_quic_ctx *qctx);
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| 60 |
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| 61 | void vquic_push_blocked_pkt(struct Curl_cfilter *cf,
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| 62 | struct cf_quic_ctx *qctx,
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| 63 | const uint8_t *pkt, size_t pktlen, size_t gsolen);
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| 64 |
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| 65 | CURLcode vquic_send_blocked_pkts(struct Curl_cfilter *cf,
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| 66 | struct Curl_easy *data,
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| 67 | struct cf_quic_ctx *qctx);
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| 68 |
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| 69 | CURLcode vquic_send(struct Curl_cfilter *cf, struct Curl_easy *data,
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| 70 | struct cf_quic_ctx *qctx, size_t gsolen);
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| 71 |
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| 72 | CURLcode vquic_send_tail_split(struct Curl_cfilter *cf, struct Curl_easy *data,
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| 73 | struct cf_quic_ctx *qctx, size_t gsolen,
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| 74 | size_t tail_len, size_t tail_gsolen);
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| 75 |
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| 76 | CURLcode vquic_flush(struct Curl_cfilter *cf, struct Curl_easy *data,
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| 77 | struct cf_quic_ctx *qctx);
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| 78 |
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| 79 |
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| 80 | typedef CURLcode vquic_recv_pkt_cb(const unsigned char *pkt, size_t pktlen,
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| 81 | struct sockaddr_storage *remote_addr,
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| 82 | socklen_t remote_addrlen, int ecn,
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| 83 | void *userp);
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| 84 |
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| 85 | CURLcode vquic_recv_packets(struct Curl_cfilter *cf,
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| 86 | struct Curl_easy *data,
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| 87 | struct cf_quic_ctx *qctx,
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| 88 | size_t max_pkts,
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| 89 | vquic_recv_pkt_cb *recv_cb, void *userp);
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| 90 |
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| 91 | #endif /* !ENABLE_QUIC */
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| 92 |
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| 93 | #endif /* HEADER_CURL_VQUIC_QUIC_INT_H */
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