Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_socket.h @ 8551:c35b255d80dc quic
HTTP/3: close connection on keepalive_requests * 2.
After receiving GOAWAY, client is not supposed to create new streams. However,
until client reads this frame, we allow it to create new streams, which are
gracefully rejected. To prevent client from abusing this algorithm, a new
limit is introduced. Upon reaching keepalive_requests * 2, server now closes
the entire QUIC connection claiming excessive load.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Thu, 29 Jul 2021 16:01:37 +0300 |
parents | efd71d49bde0 |
children | 23880e4ad3e2 |
rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #ifndef _NGX_SOCKET_H_INCLUDED_ |
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9 #define _NGX_SOCKET_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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15 #define NGX_WRITE_SHUTDOWN SHUT_WR |
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17 typedef int ngx_socket_t; |
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461 | 19 #define ngx_socket socket |
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20 #define ngx_socket_n "socket()" |
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469 | 23 #if (NGX_HAVE_FIONBIO) |
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25 int ngx_nonblocking(ngx_socket_t s); |
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26 int ngx_blocking(ngx_socket_t s); |
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28 #define ngx_nonblocking_n "ioctl(FIONBIO)" |
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29 #define ngx_blocking_n "ioctl(!FIONBIO)" |
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31 #else |
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645 | 33 #define ngx_nonblocking(s) fcntl(s, F_SETFL, fcntl(s, F_GETFL) | O_NONBLOCK) |
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34 #define ngx_nonblocking_n "fcntl(O_NONBLOCK)" |
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645 | 36 #define ngx_blocking(s) fcntl(s, F_SETFL, fcntl(s, F_GETFL) & ~O_NONBLOCK) |
37 #define ngx_blocking_n "fcntl(!O_NONBLOCK)" | |
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39 #endif |
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Events: available bytes calculation via ioctl(FIONREAD).
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41 #if (NGX_HAVE_FIONREAD) |
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43 #define ngx_socket_nread(s, n) ioctl(s, FIONREAD, n) |
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44 #define ngx_socket_nread_n "ioctl(FIONREAD)" |
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46 #endif |
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48 int ngx_tcp_nopush(ngx_socket_t s); |
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49 int ngx_tcp_push(ngx_socket_t s); |
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455 | 51 #if (NGX_LINUX) |
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53 #define ngx_tcp_nopush_n "setsockopt(TCP_CORK)" |
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54 #define ngx_tcp_push_n "setsockopt(!TCP_CORK)" |
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56 #else |
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58 #define ngx_tcp_nopush_n "setsockopt(TCP_NOPUSH)" |
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59 #define ngx_tcp_push_n "setsockopt(!TCP_NOPUSH)" |
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61 #endif |
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64 #define ngx_shutdown_socket shutdown |
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65 #define ngx_shutdown_socket_n "shutdown()" |
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67 #define ngx_close_socket close |
465 | 68 #define ngx_close_socket_n "close() socket" |
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71 #endif /* _NGX_SOCKET_H_INCLUDED_ */ |