Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3.c @ 8988:6434160b4b78 quic
QUIC: allowed main QUIC connection for some operations.
Operations like ngx_quic_open_stream(), ngx_http_quic_get_connection(),
ngx_http_v3_finalize_connection(), ngx_http_v3_shutdown_connection() used to
receive a QUIC stream connection. Now they can receive the main QUIC
connection as well. This is useful when calling them from a stream context.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Mon, 31 Jan 2022 09:16:47 +0300 |
parents | 925572184d4a |
children | 81a3429db8b0 |
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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_connection_t *pc; |
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21 ngx_pool_cleanup_t *cln; |
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22 ngx_http_connection_t *hc; |
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23 ngx_http_v3_session_t *h3c; |
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24 |
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25 pc = c->quic->parent; |
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26 hc = pc->data; |
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27 |
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28 if (hc->v3_session) { |
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29 return NGX_OK; |
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30 } |
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31 |
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32 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 init session"); |
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33 |
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34 h3c = ngx_pcalloc(pc->pool, sizeof(ngx_http_v3_session_t)); |
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35 if (h3c == NULL) { |
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36 goto failed; |
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37 } |
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38 |
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39 h3c->max_push_id = (uint64_t) -1; |
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40 h3c->goaway_push_id = (uint64_t) -1; |
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41 |
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42 ngx_queue_init(&h3c->blocked); |
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43 ngx_queue_init(&h3c->pushing); |
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44 |
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45 h3c->keepalive.log = pc->log; |
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46 h3c->keepalive.data = pc; |
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47 h3c->keepalive.handler = ngx_http_v3_keepalive_handler; |
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48 h3c->keepalive.cancelable = 1; |
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49 |
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50 cln = ngx_pool_cleanup_add(pc->pool, 0); |
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51 if (cln == NULL) { |
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52 goto failed; |
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53 } |
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54 |
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55 cln->handler = ngx_http_v3_cleanup_session; |
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56 cln->data = h3c; |
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57 |
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58 hc->v3_session = h3c; |
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59 |
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60 return ngx_http_v3_send_settings(c); |
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61 |
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62 failed: |
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63 |
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64 ngx_log_error(NGX_LOG_ERR, c->log, 0, "failed to create http3 session"); |
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65 |
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66 ngx_http_v3_finalize_connection(c, NGX_HTTP_V3_ERR_INTERNAL_ERROR, |
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67 "failed to create http3 session"); |
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68 return NGX_ERROR; |
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69 } |
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70 |
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71 |
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72 static void |
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73 ngx_http_v3_keepalive_handler(ngx_event_t *ev) |
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74 { |
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75 ngx_connection_t *c; |
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76 |
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77 c = ev->data; |
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78 |
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79 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 keepalive handler"); |
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80 |
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81 ngx_http_v3_finalize_connection(c, NGX_HTTP_V3_ERR_NO_ERROR, |
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82 "keepalive timeout"); |
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83 } |
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84 |
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85 |
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86 static void |
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87 ngx_http_v3_cleanup_session(void *data) |
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88 { |
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89 ngx_http_v3_session_t *h3c = data; |
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90 |
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91 ngx_http_v3_cleanup_table(h3c); |
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92 |
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93 if (h3c->keepalive.timer_set) { |
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94 ngx_del_timer(&h3c->keepalive); |
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95 } |
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96 } |
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97 |
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98 |
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99 ngx_int_t |
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100 ngx_http_v3_check_flood(ngx_connection_t *c) |
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101 { |
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102 ngx_http_v3_session_t *h3c; |
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103 |
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104 h3c = ngx_http_v3_get_session(c); |
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105 |
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106 if (h3c->total_bytes / 8 > h3c->payload_bytes + 1048576) { |
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107 ngx_log_error(NGX_LOG_INFO, c->log, 0, "http3 flood detected"); |
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108 |
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109 ngx_http_v3_finalize_connection(c, NGX_HTTP_V3_ERR_NO_ERROR, |
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110 "HTTP/3 flood detected"); |
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111 return NGX_ERROR; |
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112 } |
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113 |
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114 return NGX_OK; |
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115 } |