Mercurial > hg > nginx-quic
annotate src/event/quic/ngx_event_quic_connid.c @ 8414:915c2f7092ed quic
QUIC: ngx_quic_frames_stream_t made opaque.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Tue, 13 Apr 2021 11:49:52 +0300 |
parents | e0cb1e58ca13 |
children | 4117aa7fa38e |
rev | line source |
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QUIC: separate files for connection id related processing.
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1 |
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2 /* |
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3 * Copyright (C) Nginx, Inc. |
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 #include <ngx_event_quic_connection.h> |
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11 |
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12 |
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13 #define NGX_QUIC_MAX_SERVER_IDS 8 |
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14 |
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15 |
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16 static ngx_int_t ngx_quic_create_server_id(ngx_connection_t *c, u_char *id); |
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17 #if (NGX_QUIC_BPF) |
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18 static ngx_int_t ngx_quic_bpf_attach_id(ngx_connection_t *c, u_char *id); |
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19 #endif |
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20 static ngx_int_t ngx_quic_retire_connection_id(ngx_connection_t *c, |
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21 enum ssl_encryption_level_t level, uint64_t seqnum); |
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22 static ngx_quic_server_id_t *ngx_quic_insert_server_id(ngx_connection_t *c, |
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23 ngx_quic_connection_t *qc, ngx_str_t *id); |
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24 static ngx_quic_client_id_t *ngx_quic_alloc_client_id(ngx_connection_t *c, |
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25 ngx_quic_connection_t *qc); |
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26 static ngx_quic_server_id_t *ngx_quic_alloc_server_id(ngx_connection_t *c, |
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27 ngx_quic_connection_t *qc); |
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28 |
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29 |
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30 ngx_int_t |
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31 ngx_quic_setup_connection_ids(ngx_connection_t *c, ngx_quic_connection_t *qc, |
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32 ngx_quic_header_t *pkt) |
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33 { |
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34 ngx_quic_server_id_t *sid, *osid; |
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35 ngx_quic_client_id_t *cid; |
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36 |
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37 /* |
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38 * qc->nclient_ids = 0 |
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39 * qc->nserver_ids = 0 |
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40 * qc->max_retired_seqnum = 0 |
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41 */ |
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42 |
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43 ngx_queue_init(&qc->client_ids); |
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44 ngx_queue_init(&qc->server_ids); |
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45 ngx_queue_init(&qc->free_client_ids); |
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46 ngx_queue_init(&qc->free_server_ids); |
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47 |
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48 qc->odcid.len = pkt->odcid.len; |
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49 qc->odcid.data = ngx_pstrdup(c->pool, &pkt->odcid); |
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50 if (qc->odcid.data == NULL) { |
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51 return NGX_ERROR; |
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52 } |
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53 |
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54 qc->tp.original_dcid = qc->odcid; |
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55 |
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56 qc->scid.len = pkt->scid.len; |
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57 qc->scid.data = ngx_pstrdup(c->pool, &pkt->scid); |
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58 if (qc->scid.data == NULL) { |
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59 return NGX_ERROR; |
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60 } |
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61 |
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62 qc->dcid.len = NGX_QUIC_SERVER_CID_LEN; |
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63 qc->dcid.data = ngx_pnalloc(c->pool, qc->dcid.len); |
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64 if (qc->dcid.data == NULL) { |
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65 return NGX_ERROR; |
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66 } |
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67 |
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68 if (ngx_quic_create_server_id(c, qc->dcid.data) != NGX_OK) { |
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69 return NGX_ERROR; |
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70 } |
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71 |
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72 qc->tp.initial_scid = qc->dcid; |
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73 |
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74 cid = ngx_quic_alloc_client_id(c, qc); |
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75 if (cid == NULL) { |
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76 return NGX_ERROR; |
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77 } |
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78 |
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79 cid->seqnum = 0; |
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80 cid->len = pkt->scid.len; |
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81 ngx_memcpy(cid->id, pkt->scid.data, pkt->scid.len); |
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82 |
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83 ngx_queue_insert_tail(&qc->client_ids, &cid->queue); |
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84 qc->nclient_ids++; |
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85 qc->client_seqnum = 0; |
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86 |
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87 qc->server_seqnum = NGX_QUIC_UNSET_PN; |
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88 |
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89 osid = ngx_quic_insert_server_id(c, qc, &qc->odcid); |
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90 if (osid == NULL) { |
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91 return NGX_ERROR; |
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92 } |
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93 |
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94 qc->server_seqnum = 0; |
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95 |
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96 sid = ngx_quic_insert_server_id(c, qc, &qc->dcid); |
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97 if (sid == NULL) { |
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98 ngx_rbtree_delete(&c->listening->rbtree, &osid->udp.node); |
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99 return NGX_ERROR; |
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100 } |
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101 |
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102 c->udp = &sid->udp; |
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103 |
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104 return NGX_OK; |
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105 } |
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106 |
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107 |
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108 static ngx_int_t |
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109 ngx_quic_create_server_id(ngx_connection_t *c, u_char *id) |
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110 { |
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111 if (RAND_bytes(id, NGX_QUIC_SERVER_CID_LEN) != 1) { |
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112 return NGX_ERROR; |
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113 } |
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114 |
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115 #if (NGX_QUIC_BPF) |
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116 if (ngx_quic_bpf_attach_id(c, id) != NGX_OK) { |
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117 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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118 "quic bpf failed to generate socket key"); |
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119 /* ignore error, things still may work */ |
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120 } |
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121 #endif |
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122 |
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123 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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124 "quic create server id %*xs", |
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125 (size_t) NGX_QUIC_SERVER_CID_LEN, id); |
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126 return NGX_OK; |
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127 } |
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128 |
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129 |
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130 #if (NGX_QUIC_BPF) |
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131 |
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132 static ngx_int_t |
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133 ngx_quic_bpf_attach_id(ngx_connection_t *c, u_char *id) |
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134 { |
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135 int fd; |
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136 uint64_t cookie; |
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137 socklen_t optlen; |
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138 |
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139 fd = c->listening->fd; |
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140 |
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141 optlen = sizeof(cookie); |
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142 |
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143 if (getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie, &optlen) == -1) { |
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144 ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno, |
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145 "quic getsockopt(SO_COOKIE) failed"); |
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146 |
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147 return NGX_ERROR; |
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148 } |
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149 |
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150 ngx_quic_dcid_encode_key(id, cookie); |
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151 |
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152 return NGX_OK; |
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153 } |
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154 |
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155 #endif |
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156 |
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157 |
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158 |
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159 |
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160 ngx_int_t |
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161 ngx_quic_handle_new_connection_id_frame(ngx_connection_t *c, |
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162 ngx_quic_header_t *pkt, ngx_quic_new_conn_id_frame_t *f) |
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163 { |
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164 ngx_queue_t *q; |
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165 ngx_quic_client_id_t *cid, *item; |
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166 ngx_quic_connection_t *qc; |
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167 |
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168 qc = ngx_quic_get_connection(c); |
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169 |
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170 if (f->seqnum < qc->max_retired_seqnum) { |
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171 /* |
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172 * An endpoint that receives a NEW_CONNECTION_ID frame with |
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173 * a sequence number smaller than the Retire Prior To field |
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174 * of a previously received NEW_CONNECTION_ID frame MUST send |
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175 * a corresponding RETIRE_CONNECTION_ID frame that retires |
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176 * the newly received connection ID, unless it has already |
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177 * done so for that sequence number. |
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178 */ |
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179 |
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180 if (ngx_quic_retire_connection_id(c, pkt->level, f->seqnum) != NGX_OK) { |
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181 return NGX_ERROR; |
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|
182 } |
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183 |
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|
184 goto retire; |
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|
185 } |
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186 |
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187 cid = NULL; |
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188 |
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189 for (q = ngx_queue_head(&qc->client_ids); |
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190 q != ngx_queue_sentinel(&qc->client_ids); |
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191 q = ngx_queue_next(q)) |
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|
192 { |
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193 item = ngx_queue_data(q, ngx_quic_client_id_t, queue); |
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194 |
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|
195 if (item->seqnum == f->seqnum) { |
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|
196 cid = item; |
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|
197 break; |
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|
198 } |
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|
199 } |
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|
200 |
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|
201 if (cid) { |
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|
202 /* |
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|
203 * Transmission errors, timeouts and retransmissions might cause the |
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204 * same NEW_CONNECTION_ID frame to be received multiple times |
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|
205 */ |
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|
206 |
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|
207 if (cid->len != f->len |
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208 || ngx_strncmp(cid->id, f->cid, f->len) != 0 |
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209 || ngx_strncmp(cid->sr_token, f->srt, NGX_QUIC_SR_TOKEN_LEN) != 0) |
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|
210 { |
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|
211 /* |
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|
212 * ..a sequence number is used for different connection IDs, |
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213 * the endpoint MAY treat that receipt as a connection error |
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214 * of type PROTOCOL_VIOLATION. |
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|
215 */ |
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216 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION; |
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217 qc->error_reason = "seqnum refers to different connection id/token"; |
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|
218 return NGX_ERROR; |
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|
219 } |
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|
220 |
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|
221 } else { |
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|
222 |
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223 cid = ngx_quic_alloc_client_id(c, qc); |
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224 if (cid == NULL) { |
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|
225 return NGX_ERROR; |
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|
226 } |
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227 |
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|
228 cid->seqnum = f->seqnum; |
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229 cid->len = f->len; |
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230 ngx_memcpy(cid->id, f->cid, f->len); |
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|
231 |
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|
232 ngx_memcpy(cid->sr_token, f->srt, NGX_QUIC_SR_TOKEN_LEN); |
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|
233 |
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234 ngx_queue_insert_tail(&qc->client_ids, &cid->queue); |
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|
235 qc->nclient_ids++; |
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|
236 |
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|
237 /* always use latest available connection id */ |
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|
238 if (f->seqnum > qc->client_seqnum) { |
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|
239 qc->scid.len = cid->len; |
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|
240 qc->scid.data = cid->id; |
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|
241 qc->client_seqnum = f->seqnum; |
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|
242 } |
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|
243 } |
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|
244 |
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|
245 retire: |
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246 |
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247 if (qc->max_retired_seqnum && f->retire <= qc->max_retired_seqnum) { |
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248 /* |
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249 * Once a sender indicates a Retire Prior To value, smaller values sent |
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250 * in subsequent NEW_CONNECTION_ID frames have no effect. A receiver |
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251 * MUST ignore any Retire Prior To fields that do not increase the |
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252 * largest received Retire Prior To value. |
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253 */ |
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254 goto done; |
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|
255 } |
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256 |
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257 qc->max_retired_seqnum = f->retire; |
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258 |
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259 q = ngx_queue_head(&qc->client_ids); |
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260 |
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261 while (q != ngx_queue_sentinel(&qc->client_ids)) { |
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262 |
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263 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue); |
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264 q = ngx_queue_next(q); |
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265 |
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266 if (cid->seqnum >= f->retire) { |
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267 continue; |
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268 } |
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269 |
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270 /* this connection id must be retired */ |
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271 |
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272 if (ngx_quic_retire_connection_id(c, pkt->level, cid->seqnum) |
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273 != NGX_OK) |
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274 { |
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275 return NGX_ERROR; |
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|
276 } |
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277 |
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278 ngx_queue_remove(&cid->queue); |
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279 ngx_queue_insert_head(&qc->free_client_ids, &cid->queue); |
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280 qc->nclient_ids--; |
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281 } |
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282 |
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283 done: |
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284 |
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285 if (qc->nclient_ids > qc->tp.active_connection_id_limit) { |
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286 /* |
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287 * After processing a NEW_CONNECTION_ID frame and |
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288 * adding and retiring active connection IDs, if the number of active |
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289 * connection IDs exceeds the value advertised in its |
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290 * active_connection_id_limit transport parameter, an endpoint MUST |
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291 * close the connection with an error of type CONNECTION_ID_LIMIT_ERROR. |
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292 */ |
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293 qc->error = NGX_QUIC_ERR_CONNECTION_ID_LIMIT_ERROR; |
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294 qc->error_reason = "too many connection ids received"; |
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295 return NGX_ERROR; |
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|
296 } |
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297 |
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298 return NGX_OK; |
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299 } |
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300 |
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301 |
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302 static ngx_int_t |
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303 ngx_quic_retire_connection_id(ngx_connection_t *c, |
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304 enum ssl_encryption_level_t level, uint64_t seqnum) |
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305 { |
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306 ngx_quic_frame_t *frame; |
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307 ngx_quic_connection_t *qc; |
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308 |
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309 qc = ngx_quic_get_connection(c); |
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310 |
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311 frame = ngx_quic_alloc_frame(c); |
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312 if (frame == NULL) { |
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313 return NGX_ERROR; |
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|
314 } |
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|
315 |
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316 frame->level = level; |
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317 frame->type = NGX_QUIC_FT_RETIRE_CONNECTION_ID; |
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318 frame->u.retire_cid.sequence_number = seqnum; |
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|
319 |
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|
320 ngx_quic_queue_frame(qc, frame); |
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|
321 |
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|
322 return NGX_OK; |
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|
323 } |
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|
324 |
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|
325 |
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|
326 ngx_int_t |
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|
327 ngx_quic_handle_retire_connection_id_frame(ngx_connection_t *c, |
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328 ngx_quic_header_t *pkt, ngx_quic_retire_cid_frame_t *f) |
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|
329 { |
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|
330 ngx_queue_t *q; |
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|
331 ngx_quic_server_id_t *sid; |
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|
332 ngx_quic_connection_t *qc; |
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|
333 |
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|
334 qc = ngx_quic_get_connection(c); |
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|
335 |
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|
336 for (q = ngx_queue_head(&qc->server_ids); |
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337 q != ngx_queue_sentinel(&qc->server_ids); |
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|
338 q = ngx_queue_next(q)) |
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|
339 { |
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|
340 sid = ngx_queue_data(q, ngx_quic_server_id_t, queue); |
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|
341 |
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|
342 if (sid->seqnum == f->sequence_number) { |
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|
343 ngx_queue_remove(q); |
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|
344 ngx_queue_insert_tail(&qc->free_server_ids, &sid->queue); |
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|
345 ngx_rbtree_delete(&c->listening->rbtree, &sid->udp.node); |
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|
346 qc->nserver_ids--; |
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|
347 break; |
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|
348 } |
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|
349 } |
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|
350 |
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|
351 return ngx_quic_issue_server_ids(c); |
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|
352 } |
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|
353 |
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|
354 |
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|
355 ngx_int_t |
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|
356 ngx_quic_issue_server_ids(ngx_connection_t *c) |
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|
357 { |
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|
358 ngx_str_t dcid; |
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diff
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|
359 ngx_uint_t n; |
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|
360 ngx_quic_frame_t *frame; |
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|
361 ngx_quic_server_id_t *sid; |
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|
362 ngx_quic_connection_t *qc; |
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|
363 u_char id[NGX_QUIC_SERVER_CID_LEN]; |
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|
364 |
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|
365 qc = ngx_quic_get_connection(c); |
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diff
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|
366 |
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diff
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|
367 n = ngx_min(NGX_QUIC_MAX_SERVER_IDS, qc->ctp.active_connection_id_limit); |
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|
368 |
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|
369 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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parents:
diff
changeset
|
370 "quic issue server ids has:%ui max:%ui", qc->nserver_ids, n); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
371 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
372 while (qc->nserver_ids < n) { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
373 if (ngx_quic_create_server_id(c, id) != NGX_OK) { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
374 return NGX_ERROR; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
375 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
376 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
377 dcid.len = NGX_QUIC_SERVER_CID_LEN; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
378 dcid.data = id; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
379 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
380 sid = ngx_quic_insert_server_id(c, qc, &dcid); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
381 if (sid == NULL) { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
382 return NGX_ERROR; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
383 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
384 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
385 frame = ngx_quic_alloc_frame(c); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
386 if (frame == NULL) { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
387 return NGX_ERROR; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
388 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
389 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
390 frame->level = ssl_encryption_application; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
391 frame->type = NGX_QUIC_FT_NEW_CONNECTION_ID; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
392 frame->u.ncid.seqnum = sid->seqnum; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
393 frame->u.ncid.retire = 0; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
394 frame->u.ncid.len = NGX_QUIC_SERVER_CID_LEN; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
395 ngx_memcpy(frame->u.ncid.cid, id, NGX_QUIC_SERVER_CID_LEN); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
396 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
397 if (ngx_quic_new_sr_token(c, &dcid, qc->conf->sr_token_key, |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
398 frame->u.ncid.srt) |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
399 != NGX_OK) |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
400 { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
401 return NGX_ERROR; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
402 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
403 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
404 ngx_quic_queue_frame(qc, frame); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
405 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
406 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
407 return NGX_OK; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
408 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
409 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
410 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
411 void |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
412 ngx_quic_clear_temp_server_ids(ngx_connection_t *c) |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
413 { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
414 ngx_queue_t *q, *next; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
415 ngx_quic_server_id_t *sid; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
416 ngx_quic_connection_t *qc; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
417 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
418 qc = ngx_quic_get_connection(c); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
419 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
420 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
421 "quic clear temp server ids"); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
422 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
423 for (q = ngx_queue_head(&qc->server_ids); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
424 q != ngx_queue_sentinel(&qc->server_ids); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
425 q = next) |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
426 { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
427 next = ngx_queue_next(q); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
428 sid = ngx_queue_data(q, ngx_quic_server_id_t, queue); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
429 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
430 if (sid->seqnum != NGX_QUIC_UNSET_PN) { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
431 continue; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
432 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
433 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
434 ngx_queue_remove(q); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
435 ngx_queue_insert_tail(&qc->free_server_ids, &sid->queue); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
436 ngx_rbtree_delete(&c->listening->rbtree, &sid->udp.node); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
437 qc->nserver_ids--; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
438 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
439 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
440 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
441 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
442 static ngx_quic_server_id_t * |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
443 ngx_quic_insert_server_id(ngx_connection_t *c, ngx_quic_connection_t *qc, |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
444 ngx_str_t *id) |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
445 { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
446 ngx_str_t dcid; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
447 ngx_quic_server_id_t *sid; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
448 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
449 sid = ngx_quic_alloc_server_id(c, qc); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
450 if (sid == NULL) { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
451 return NULL; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
452 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
453 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
454 sid->quic = qc; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
455 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
456 sid->seqnum = qc->server_seqnum; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
457 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
458 if (qc->server_seqnum != NGX_QUIC_UNSET_PN) { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
459 qc->server_seqnum++; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
460 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
461 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
462 sid->len = id->len; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
463 ngx_memcpy(sid->id, id->data, id->len); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
464 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
465 ngx_queue_insert_tail(&qc->server_ids, &sid->queue); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
466 qc->nserver_ids++; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
467 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
468 dcid.data = sid->id; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
469 dcid.len = sid->len; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
470 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
471 ngx_insert_udp_connection(c, &sid->udp, &dcid); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
472 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
473 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
474 "quic insert server id seqnum:%uL id len:%uz %xV", |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
475 sid->seqnum, id->len, id); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
476 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
477 return sid; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
478 } |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
479 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
480 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
481 static ngx_quic_client_id_t * |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
482 ngx_quic_alloc_client_id(ngx_connection_t *c, ngx_quic_connection_t *qc) |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
483 { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
484 ngx_queue_t *q; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
485 ngx_quic_client_id_t *cid; |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
486 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
487 if (!ngx_queue_empty(&qc->free_client_ids)) { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
488 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
489 q = ngx_queue_head(&qc->free_client_ids); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
490 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
491 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
492 ngx_queue_remove(&cid->queue); |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
493 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
494 ngx_memzero(cid, sizeof(ngx_quic_client_id_t)); |
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495 |
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496 } else { |
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497 |
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498 cid = ngx_pcalloc(c->pool, sizeof(ngx_quic_client_id_t)); |
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499 if (cid == NULL) { |
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500 return NULL; |
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501 } |
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502 } |
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503 |
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504 return cid; |
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505 } |
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506 |
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507 |
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508 static ngx_quic_server_id_t * |
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509 ngx_quic_alloc_server_id(ngx_connection_t *c, ngx_quic_connection_t *qc) |
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510 { |
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511 ngx_queue_t *q; |
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512 ngx_quic_server_id_t *sid; |
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513 |
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514 if (!ngx_queue_empty(&qc->free_server_ids)) { |
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515 |
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516 q = ngx_queue_head(&qc->free_server_ids); |
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517 sid = ngx_queue_data(q, ngx_quic_server_id_t, queue); |
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518 |
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519 ngx_queue_remove(&sid->queue); |
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520 |
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521 ngx_memzero(sid, sizeof(ngx_quic_server_id_t)); |
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522 |
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523 } else { |
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524 |
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525 sid = ngx_pcalloc(c->pool, sizeof(ngx_quic_server_id_t)); |
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526 if (sid == NULL) { |
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527 return NULL; |
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528 } |
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529 } |
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530 |
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531 return sid; |
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532 } |