Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3.c @ 9058:b0c2234aaa9f quic
QUIC: application init() callback.
It's called after handshake completion or prior to the first early data stream
creation. The callback should initialize application-level data before
creating streams.
HTTP/3 callback implementation sets keepalive timer and sends SETTINGS.
Also, this allows to limit max handshake time in ngx_http_v3_init_stream().
author | Roman Arutyunyan <arut@nginx.com> |
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date | Wed, 30 Nov 2022 12:51:15 +0400 |
parents | be39ffdf9208 |
children | c851a2ed5ce8 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Roman Arutyunyan |
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4 * Copyright (C) Nginx, Inc. |
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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 void ngx_http_v3_keepalive_handler(ngx_event_t *ev); |
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14 static void ngx_http_v3_cleanup_session(void *data); |
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15 |
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16 |
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17 ngx_int_t |
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18 ngx_http_v3_init_session(ngx_connection_t *c) |
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19 { |
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20 ngx_pool_cleanup_t *cln; |
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21 ngx_http_connection_t *hc; |
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22 ngx_http_v3_session_t *h3c; |
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23 #if (NGX_HTTP_V3_HQ) |
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24 ngx_http_v3_srv_conf_t *h3scf; |
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25 #endif |
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26 |
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27 hc = c->data; |
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28 |
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29 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 init session"); |
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30 |
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31 h3c = ngx_pcalloc(c->pool, sizeof(ngx_http_v3_session_t)); |
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32 if (h3c == NULL) { |
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33 goto failed; |
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34 } |
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35 |
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36 h3c->max_push_id = (uint64_t) -1; |
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37 h3c->goaway_push_id = (uint64_t) -1; |
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38 |
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39 #if (NGX_HTTP_V3_HQ) |
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40 h3scf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_v3_module); |
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41 if (h3scf->hq) { |
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42 h3c->hq = 1; |
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43 } |
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44 #endif |
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45 |
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46 ngx_queue_init(&h3c->blocked); |
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47 ngx_queue_init(&h3c->pushing); |
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48 |
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49 h3c->keepalive.log = c->log; |
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50 h3c->keepalive.data = c; |
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51 h3c->keepalive.handler = ngx_http_v3_keepalive_handler; |
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52 |
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53 h3c->table.send_insert_count.log = c->log; |
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54 h3c->table.send_insert_count.data = c; |
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55 h3c->table.send_insert_count.handler = ngx_http_v3_inc_insert_count_handler; |
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56 |
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57 cln = ngx_pool_cleanup_add(c->pool, 0); |
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58 if (cln == NULL) { |
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59 goto failed; |
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60 } |
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61 |
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62 cln->handler = ngx_http_v3_cleanup_session; |
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63 cln->data = h3c; |
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64 |
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65 hc->v3_session = h3c; |
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66 |
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67 return NGX_OK; |
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68 |
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69 failed: |
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70 |
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71 ngx_log_error(NGX_LOG_ERR, c->log, 0, "failed to create http3 session"); |
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72 |
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73 ngx_http_v3_finalize_connection(c, NGX_HTTP_V3_ERR_INTERNAL_ERROR, |
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74 "failed to create http3 session"); |
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75 return NGX_ERROR; |
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76 } |
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77 |
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78 |
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79 static void |
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80 ngx_http_v3_keepalive_handler(ngx_event_t *ev) |
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81 { |
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82 ngx_connection_t *c; |
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83 |
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84 c = ev->data; |
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85 |
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86 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 keepalive handler"); |
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87 |
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88 ngx_http_v3_finalize_connection(c, NGX_HTTP_V3_ERR_NO_ERROR, |
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89 "keepalive timeout"); |
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90 } |
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91 |
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92 |
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93 static void |
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94 ngx_http_v3_cleanup_session(void *data) |
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95 { |
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96 ngx_http_v3_session_t *h3c = data; |
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97 |
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98 ngx_http_v3_cleanup_table(h3c); |
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99 |
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100 if (h3c->keepalive.timer_set) { |
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101 ngx_del_timer(&h3c->keepalive); |
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102 } |
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103 |
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104 if (h3c->table.send_insert_count.posted) { |
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105 ngx_delete_posted_event(&h3c->table.send_insert_count); |
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106 } |
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107 } |
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108 |
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109 |
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110 ngx_int_t |
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111 ngx_http_v3_check_flood(ngx_connection_t *c) |
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112 { |
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113 ngx_http_v3_session_t *h3c; |
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114 |
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115 h3c = ngx_http_v3_get_session(c); |
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116 |
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117 if (h3c->total_bytes / 8 > h3c->payload_bytes + 1048576) { |
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118 ngx_log_error(NGX_LOG_INFO, c->log, 0, "http3 flood detected"); |
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119 |
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120 ngx_http_v3_finalize_connection(c, NGX_HTTP_V3_ERR_NO_ERROR, |
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121 "HTTP/3 flood detected"); |
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122 return NGX_ERROR; |
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123 } |
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124 |
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125 return NGX_OK; |
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126 } |