Mercurial > hg > nginx
annotate src/http/v2/ngx_http_v2_encode.c @ 9158:ad3d34ddfdcc
QUIC: "handshake_timeout" configuration parameter.
Previously QUIC did not have such parameter and handshake duration was
controlled by HTTP/3. However that required creating and storing HTTP/3
session on first client datagram. Apparently there's no convenient way to
store the session object until QUIC handshake is complete. In the followup
patches session creation will be postponed to init() callback.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Wed, 13 Sep 2023 17:59:37 +0400 |
parents | 336084ff943b |
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1 |
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2 /* |
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3 * Copyright (C) Nginx, Inc. |
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4 * Copyright (C) Valentin V. Bartenev |
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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11 |
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12 |
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13 static u_char *ngx_http_v2_write_int(u_char *pos, ngx_uint_t prefix, |
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14 ngx_uint_t value); |
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15 |
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16 |
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17 u_char * |
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18 ngx_http_v2_string_encode(u_char *dst, u_char *src, size_t len, u_char *tmp, |
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19 ngx_uint_t lower) |
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20 { |
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21 size_t hlen; |
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22 |
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23 hlen = ngx_http_huff_encode(src, len, tmp, lower); |
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24 |
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25 if (hlen > 0) { |
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26 *dst = NGX_HTTP_V2_ENCODE_HUFF; |
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27 dst = ngx_http_v2_write_int(dst, ngx_http_v2_prefix(7), hlen); |
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28 return ngx_cpymem(dst, tmp, hlen); |
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29 } |
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30 |
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31 *dst = NGX_HTTP_V2_ENCODE_RAW; |
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32 dst = ngx_http_v2_write_int(dst, ngx_http_v2_prefix(7), len); |
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33 |
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34 if (lower) { |
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35 ngx_strlow(dst, src, len); |
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36 return dst + len; |
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37 } |
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38 |
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39 return ngx_cpymem(dst, src, len); |
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40 } |
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41 |
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42 |
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43 static u_char * |
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44 ngx_http_v2_write_int(u_char *pos, ngx_uint_t prefix, ngx_uint_t value) |
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45 { |
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46 if (value < prefix) { |
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47 *pos++ |= value; |
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48 return pos; |
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49 } |
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50 |
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51 *pos++ |= prefix; |
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52 value -= prefix; |
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53 |
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54 while (value >= 128) { |
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55 *pos++ = value % 128 + 128; |
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56 value /= 128; |
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57 } |
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58 |
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59 *pos++ = (u_char) value; |
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60 |
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61 return pos; |
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62 } |