Mercurial > hg > nginx
annotate src/event/quic/ngx_event_quic_connid.c @ 8946:56dec0d4e5b1 quic
QUIC: avoid excessive buffer allocations in stream output.
Previously, when a few bytes were send to a QUIC stream by the application, a
4K buffer was allocated for these bytes. Then a STREAM frame was created and
that entire buffer was used as data for that frame. The frame with the buffer
were in use up until the frame was acked by client. Meanwhile, when more
bytes were send to the stream, more buffers were allocated and assigned as
data to newer STREAM frames. In this scenario most buffer memory is unused.
Now the unused part of the stream output buffer is available for further
stream output while earlier parts of the buffer are waiting to be acked.
This is achieved by splitting the output buffer.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Fri, 24 Dec 2021 18:13:51 +0300 |
parents | 9680f0badc95 |
children | 32daba3aabb2 |
rev | line source |
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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 #define NGX_QUIC_MAX_SERVER_IDS 8 |
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13 |
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14 |
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15 #if (NGX_QUIC_BPF) |
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16 static ngx_int_t ngx_quic_bpf_attach_id(ngx_connection_t *c, u_char *id); |
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17 #endif |
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18 static ngx_int_t ngx_quic_send_retire_connection_id(ngx_connection_t *c, |
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19 uint64_t seqnum); |
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20 |
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21 static ngx_quic_client_id_t *ngx_quic_alloc_client_id(ngx_connection_t *c, |
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22 ngx_quic_connection_t *qc); |
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23 static ngx_int_t ngx_quic_replace_retired_client_id(ngx_connection_t *c, |
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24 ngx_quic_client_id_t *retired_cid); |
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25 static ngx_int_t ngx_quic_send_server_id(ngx_connection_t *c, |
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26 ngx_quic_server_id_t *sid); |
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27 |
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28 |
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29 ngx_int_t |
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30 ngx_quic_create_server_id(ngx_connection_t *c, u_char *id) |
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31 { |
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32 if (RAND_bytes(id, NGX_QUIC_SERVER_CID_LEN) != 1) { |
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33 return NGX_ERROR; |
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34 } |
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35 |
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36 #if (NGX_QUIC_BPF) |
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37 if (ngx_quic_bpf_attach_id(c, id) != NGX_OK) { |
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38 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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39 "quic bpf failed to generate socket key"); |
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40 /* ignore error, things still may work */ |
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41 } |
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42 #endif |
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43 |
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44 return NGX_OK; |
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45 } |
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46 |
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47 |
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48 #if (NGX_QUIC_BPF) |
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49 |
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50 static ngx_int_t |
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51 ngx_quic_bpf_attach_id(ngx_connection_t *c, u_char *id) |
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52 { |
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53 int fd; |
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54 uint64_t cookie; |
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55 socklen_t optlen; |
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56 |
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57 fd = c->listening->fd; |
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58 |
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59 optlen = sizeof(cookie); |
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60 |
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61 if (getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie, &optlen) == -1) { |
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62 ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno, |
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63 "quic getsockopt(SO_COOKIE) failed"); |
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64 |
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65 return NGX_ERROR; |
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66 } |
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67 |
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68 ngx_quic_dcid_encode_key(id, cookie); |
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69 |
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70 return NGX_OK; |
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71 } |
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72 |
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73 #endif |
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74 |
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75 |
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76 ngx_int_t |
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77 ngx_quic_handle_new_connection_id_frame(ngx_connection_t *c, |
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78 ngx_quic_new_conn_id_frame_t *f) |
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79 { |
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80 uint64_t seq; |
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81 ngx_str_t id; |
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82 ngx_queue_t *q; |
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83 ngx_quic_client_id_t *cid, *item; |
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84 ngx_quic_connection_t *qc; |
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85 |
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86 qc = ngx_quic_get_connection(c); |
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87 |
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88 if (f->seqnum < qc->max_retired_seqnum) { |
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89 /* |
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90 * RFC 9000, 19.15. NEW_CONNECTION_ID Frame |
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91 * |
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92 * An endpoint that receives a NEW_CONNECTION_ID frame with |
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93 * a sequence number smaller than the Retire Prior To field |
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94 * of a previously received NEW_CONNECTION_ID frame MUST send |
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95 * a corresponding RETIRE_CONNECTION_ID frame that retires |
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96 * the newly received connection ID, unless it has already |
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97 * done so for that sequence number. |
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98 */ |
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99 |
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100 if (ngx_quic_send_retire_connection_id(c, f->seqnum) != NGX_OK) { |
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101 return NGX_ERROR; |
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102 } |
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103 |
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104 goto retire; |
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105 } |
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106 |
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107 cid = NULL; |
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108 |
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109 for (q = ngx_queue_head(&qc->client_ids); |
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110 q != ngx_queue_sentinel(&qc->client_ids); |
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111 q = ngx_queue_next(q)) |
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112 { |
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113 item = ngx_queue_data(q, ngx_quic_client_id_t, queue); |
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114 |
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115 if (item->seqnum == f->seqnum) { |
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116 cid = item; |
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117 break; |
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118 } |
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119 } |
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QUIC: separate files for connection id related processing.
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parents:
diff
changeset
|
120 |
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parents:
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|
121 if (cid) { |
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parents:
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|
122 /* |
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|
123 * Transmission errors, timeouts, and retransmissions might cause the |
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124 * same NEW_CONNECTION_ID frame to be received multiple times. |
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parents:
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|
125 */ |
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parents:
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|
126 |
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parents:
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|
127 if (cid->len != f->len |
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|
128 || ngx_strncmp(cid->id, f->cid, f->len) != 0 |
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|
129 || ngx_strncmp(cid->sr_token, f->srt, NGX_QUIC_SR_TOKEN_LEN) != 0) |
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parents:
diff
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|
130 { |
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parents:
diff
changeset
|
131 /* |
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|
132 * ..if a sequence number is used for different connection IDs, |
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|
133 * the endpoint MAY treat that receipt as a connection error |
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parents:
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|
134 * of type PROTOCOL_VIOLATION. |
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parents:
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|
135 */ |
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parents:
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|
136 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION; |
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|
137 qc->error_reason = "seqnum refers to different connection id/token"; |
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parents:
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|
138 return NGX_ERROR; |
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parents:
diff
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|
139 } |
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parents:
diff
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|
140 |
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parents:
diff
changeset
|
141 } else { |
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parents:
diff
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|
142 |
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|
143 id.data = f->cid; |
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|
144 id.len = f->len; |
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parents:
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|
145 |
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|
146 if (ngx_quic_create_client_id(c, &id, f->seqnum, f->srt) == NULL) { |
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|
147 return NGX_ERROR; |
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|
148 } |
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parents:
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|
149 } |
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parents:
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|
150 |
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parents:
diff
changeset
|
151 retire: |
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parents:
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|
152 |
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|
153 if (qc->max_retired_seqnum && f->retire <= qc->max_retired_seqnum) { |
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parents:
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|
154 /* |
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parents:
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|
155 * Once a sender indicates a Retire Prior To value, smaller values sent |
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parents:
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changeset
|
156 * in subsequent NEW_CONNECTION_ID frames have no effect. A receiver |
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|
157 * MUST ignore any Retire Prior To fields that do not increase the |
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|
158 * largest received Retire Prior To value. |
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parents:
diff
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|
159 */ |
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|
160 goto done; |
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parents:
diff
changeset
|
161 } |
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parents:
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|
162 |
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|
163 qc->max_retired_seqnum = f->retire; |
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parents:
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|
164 |
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|
165 q = ngx_queue_head(&qc->client_ids); |
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parents:
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|
166 |
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|
167 while (q != ngx_queue_sentinel(&qc->client_ids)) { |
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parents:
diff
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|
168 |
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|
169 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue); |
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|
170 q = ngx_queue_next(q); |
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parents:
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|
171 |
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|
172 if (cid->seqnum >= f->retire) { |
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parents:
diff
changeset
|
173 continue; |
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parents:
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changeset
|
174 } |
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parents:
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changeset
|
175 |
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parents:
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changeset
|
176 /* this connection id must be retired */ |
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|
177 seq = cid->seqnum; |
8748
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|
178 |
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|
179 if (cid->refcnt) { |
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|
180 /* we are going to retire client id which is in use */ |
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diff
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|
181 if (ngx_quic_replace_retired_client_id(c, cid) != NGX_OK) { |
4117aa7fa38e
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|
182 return NGX_ERROR; |
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|
183 } |
8896
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QUIC: fixed removal of unused client IDs.
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|
184 |
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QUIC: fixed removal of unused client IDs.
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|
185 } else { |
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QUIC: fixed removal of unused client IDs.
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|
186 ngx_quic_unref_client_id(c, cid); |
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QUIC: connection migration.
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|
187 } |
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parents:
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|
188 |
9680f0badc95
QUIC: fixed using of retired connection id (ticket #2289).
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parents:
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diff
changeset
|
189 if (ngx_quic_send_retire_connection_id(c, seq) != NGX_OK) { |
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QUIC: fixed using of retired connection id (ticket #2289).
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|
190 return NGX_ERROR; |
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|
191 } |
8748
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changeset
|
192 } |
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parents:
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changeset
|
193 |
e0cb1e58ca13
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parents:
diff
changeset
|
194 done: |
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|
195 |
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|
196 if (qc->nclient_ids > qc->tp.active_connection_id_limit) { |
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parents:
diff
changeset
|
197 /* |
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|
198 * RFC 9000, 5.1.1. Issuing Connection IDs |
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|
199 * |
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|
200 * After processing a NEW_CONNECTION_ID frame and |
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diff
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|
201 * adding and retiring active connection IDs, if the number of active |
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QUIC: separate files for connection id related processing.
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parents:
diff
changeset
|
202 * connection IDs exceeds the value advertised in its |
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parents:
diff
changeset
|
203 * active_connection_id_limit transport parameter, an endpoint MUST |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
204 * close the connection with an error of type CONNECTION_ID_LIMIT_ERROR. |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
205 */ |
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parents:
diff
changeset
|
206 qc->error = NGX_QUIC_ERR_CONNECTION_ID_LIMIT_ERROR; |
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diff
changeset
|
207 qc->error_reason = "too many connection ids received"; |
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parents:
diff
changeset
|
208 return NGX_ERROR; |
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parents:
diff
changeset
|
209 } |
e0cb1e58ca13
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parents:
diff
changeset
|
210 |
e0cb1e58ca13
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parents:
diff
changeset
|
211 return NGX_OK; |
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parents:
diff
changeset
|
212 } |
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parents:
diff
changeset
|
213 |
e0cb1e58ca13
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Vladimir Homutov <vl@nginx.com>
parents:
diff
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|
214 |
e0cb1e58ca13
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
215 static ngx_int_t |
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Sergey Kandaurov <pluknet@nginx.com>
parents:
8777
diff
changeset
|
216 ngx_quic_send_retire_connection_id(ngx_connection_t *c, uint64_t seqnum) |
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diff
changeset
|
217 { |
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parents:
diff
changeset
|
218 ngx_quic_frame_t *frame; |
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parents:
diff
changeset
|
219 ngx_quic_connection_t *qc; |
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parents:
diff
changeset
|
220 |
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parents:
diff
changeset
|
221 qc = ngx_quic_get_connection(c); |
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parents:
diff
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|
222 |
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parents:
diff
changeset
|
223 frame = ngx_quic_alloc_frame(c); |
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parents:
diff
changeset
|
224 if (frame == NULL) { |
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QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
225 return NGX_ERROR; |
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QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
226 } |
e0cb1e58ca13
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
227 |
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parents:
8777
diff
changeset
|
228 frame->level = ssl_encryption_application; |
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diff
changeset
|
229 frame->type = NGX_QUIC_FT_RETIRE_CONNECTION_ID; |
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parents:
diff
changeset
|
230 frame->u.retire_cid.sequence_number = seqnum; |
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parents:
diff
changeset
|
231 |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
232 ngx_quic_queue_frame(qc, frame); |
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parents:
diff
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|
233 |
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|
234 /* we are no longer going to use this client id */ |
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parents:
diff
changeset
|
235 |
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parents:
diff
changeset
|
236 return NGX_OK; |
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parents:
diff
changeset
|
237 } |
e0cb1e58ca13
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parents:
diff
changeset
|
238 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
239 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
240 static ngx_quic_client_id_t * |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
241 ngx_quic_alloc_client_id(ngx_connection_t *c, ngx_quic_connection_t *qc) |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
242 { |
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
243 ngx_queue_t *q; |
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244 ngx_quic_client_id_t *cid; |
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245 |
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246 if (!ngx_queue_empty(&qc->free_client_ids)) { |
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247 |
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248 q = ngx_queue_head(&qc->free_client_ids); |
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249 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue); |
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250 |
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251 ngx_queue_remove(&cid->queue); |
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252 |
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253 ngx_memzero(cid, sizeof(ngx_quic_client_id_t)); |
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254 |
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|
255 } else { |
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256 |
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257 cid = ngx_pcalloc(c->pool, sizeof(ngx_quic_client_id_t)); |
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258 if (cid == NULL) { |
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259 return NULL; |
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260 } |
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|
261 } |
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262 |
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|
263 return cid; |
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|
264 } |
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265 |
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266 |
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267 ngx_quic_client_id_t * |
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268 ngx_quic_create_client_id(ngx_connection_t *c, ngx_str_t *id, |
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269 uint64_t seqnum, u_char *token) |
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270 { |
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271 ngx_quic_client_id_t *cid; |
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272 ngx_quic_connection_t *qc; |
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273 |
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274 qc = ngx_quic_get_connection(c); |
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275 |
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276 cid = ngx_quic_alloc_client_id(c, qc); |
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277 if (cid == NULL) { |
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278 return NULL; |
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279 } |
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280 |
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281 cid->seqnum = seqnum; |
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282 |
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283 cid->len = id->len; |
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|
284 ngx_memcpy(cid->id, id->data, id->len); |
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285 |
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286 if (token) { |
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287 ngx_memcpy(cid->sr_token, token, NGX_QUIC_SR_TOKEN_LEN); |
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288 } |
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289 |
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290 ngx_queue_insert_tail(&qc->client_ids, &cid->queue); |
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291 qc->nclient_ids++; |
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292 |
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293 if (seqnum > qc->client_seqnum) { |
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294 qc->client_seqnum = seqnum; |
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295 } |
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296 |
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297 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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298 "quic cid #%uL received id:%uz:%xV:%*xs", |
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299 cid->seqnum, id->len, id, |
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300 (size_t) NGX_QUIC_SR_TOKEN_LEN, cid->sr_token); |
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301 |
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|
302 return cid; |
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|
303 } |
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304 |
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|
305 |
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|
306 ngx_quic_client_id_t * |
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|
307 ngx_quic_next_client_id(ngx_connection_t *c) |
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|
308 { |
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|
309 ngx_queue_t *q; |
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|
310 ngx_quic_client_id_t *cid; |
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311 ngx_quic_connection_t *qc; |
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312 |
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313 qc = ngx_quic_get_connection(c); |
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314 |
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315 for (q = ngx_queue_head(&qc->client_ids); |
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|
316 q != ngx_queue_sentinel(&qc->client_ids); |
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317 q = ngx_queue_next(q)) |
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|
318 { |
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|
319 cid = ngx_queue_data(q, ngx_quic_client_id_t, queue); |
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320 |
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|
321 if (cid->refcnt == 0) { |
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|
322 return cid; |
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|
323 } |
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diff
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|
324 } |
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diff
changeset
|
325 |
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|
326 return NULL; |
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|
327 } |
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|
328 |
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329 |
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|
330 ngx_quic_client_id_t * |
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|
331 ngx_quic_used_client_id(ngx_connection_t *c, ngx_quic_path_t *path) |
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|
332 { |
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|
333 ngx_queue_t *q; |
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|
334 ngx_quic_socket_t *qsock; |
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|
335 ngx_quic_connection_t *qc; |
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|
336 |
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|
337 qc = ngx_quic_get_connection(c); |
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|
338 |
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|
339 /* best guess: cid used by active path is good for us */ |
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|
340 if (qc->socket->path == path) { |
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|
341 return qc->socket->cid; |
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|
342 } |
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|
343 |
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|
344 for (q = ngx_queue_head(&qc->sockets); |
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|
345 q != ngx_queue_sentinel(&qc->sockets); |
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|
346 q = ngx_queue_next(q)) |
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|
347 { |
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changeset
|
348 qsock = ngx_queue_data(q, ngx_quic_socket_t, queue); |
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|
349 |
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changeset
|
350 if (qsock->path && qsock->path == path) { |
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|
351 return qsock->cid; |
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|
352 } |
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changeset
|
353 } |
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changeset
|
354 |
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diff
changeset
|
355 return NULL; |
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diff
changeset
|
356 } |
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changeset
|
357 |
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changeset
|
358 |
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|
359 ngx_int_t |
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|
360 ngx_quic_handle_retire_connection_id_frame(ngx_connection_t *c, |
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Sergey Kandaurov <pluknet@nginx.com>
parents:
8777
diff
changeset
|
361 ngx_quic_retire_cid_frame_t *f) |
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|
362 { |
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changeset
|
363 ngx_quic_path_t *path; |
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changeset
|
364 ngx_quic_socket_t *qsock, **tmp; |
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changeset
|
365 ngx_quic_client_id_t *cid; |
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changeset
|
366 ngx_quic_connection_t *qc; |
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changeset
|
367 |
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changeset
|
368 qc = ngx_quic_get_connection(c); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
369 |
8910
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
370 if (f->sequence_number >= qc->server_seqnum) { |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
371 /* |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
372 * RFC 9000, 19.16. |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
373 * |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
374 * Receipt of a RETIRE_CONNECTION_ID frame containing a sequence |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
375 * number greater than any previously sent to the peer MUST be |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
376 * treated as a connection error of type PROTOCOL_VIOLATION. |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
377 */ |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
378 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION; |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
379 qc->error_reason = "sequence number of id to retire was never issued"; |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
380 |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
381 return NGX_ERROR; |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
382 } |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
383 |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
384 qsock = ngx_quic_get_socket(c); |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
385 |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
386 if (qsock->sid.seqnum == f->sequence_number) { |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
387 |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
388 /* |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
389 * RFC 9000, 19.16. |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
390 * |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
391 * The sequence number specified in a RETIRE_CONNECTION_ID frame MUST |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
392 * NOT refer to the Destination Connection ID field of the packet in |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
393 * which the frame is contained. The peer MAY treat this as a |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
394 * connection error of type PROTOCOL_VIOLATION. |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
395 */ |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
396 |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
397 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION; |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
398 qc->error_reason = "sequence number of id to retire refers DCID"; |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
399 |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
400 return NGX_ERROR; |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
401 } |
f8848f5a1014
QUIC: additional checks for the RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8896
diff
changeset
|
402 |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
403 qsock = ngx_quic_find_socket(c, f->sequence_number); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
404 if (qsock == NULL) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
405 return NGX_OK; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
406 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
407 |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
408 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
409 "quic socket #%uL is retired", qsock->sid.seqnum); |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
410 |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
411 /* check if client is willing to retire sid we have in use */ |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
412 if (qsock->sid.seqnum == qc->socket->sid.seqnum) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
413 tmp = &qc->socket; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
414 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
415 } else if (qc->backup && qsock->sid.seqnum == qc->backup->sid.seqnum) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
416 tmp = &qc->backup; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
417 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
418 } else { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
419 |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
420 ngx_quic_close_socket(c, qsock); |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
421 |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
422 /* restore socket count up to a limit after deletion */ |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
423 if (ngx_quic_create_sockets(c) != NGX_OK) { |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
424 return NGX_ERROR; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
425 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
426 |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
427 return NGX_OK; |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
428 } |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
429 |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
430 /* preserve path/cid from retired socket */ |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
431 path = qsock->path; |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
432 cid = qsock->cid; |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
433 |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
434 /* ensure that closing_socket will not drop path and cid */ |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
435 path->refcnt++; |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
436 cid->refcnt++; |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
437 |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
438 ngx_quic_close_socket(c, qsock); |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
439 |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
440 /* restore original values */ |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
441 path->refcnt--; |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
442 cid->refcnt--; |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
443 |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
444 /* restore socket count up to a limit after deletion */ |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
445 if (ngx_quic_create_sockets(c) != NGX_OK) { |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
446 goto failed; |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
447 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
448 |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
449 qsock = ngx_quic_get_unconnected_socket(c); |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
450 if (qsock == NULL) { |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
451 qc->error = NGX_QUIC_ERR_CONNECTION_ID_LIMIT_ERROR; |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
452 qc->error_reason = "not enough server IDs"; |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
453 goto failed; |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
454 } |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
455 |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
456 ngx_quic_connect(c, qsock, path, cid); |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
457 |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
458 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0, |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
459 "quic %s socket is now #%uL:%uL:%uL (%s)", |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
460 (*tmp) == qc->socket ? "active" : "backup", |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
461 qsock->sid.seqnum, qsock->cid->seqnum, |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
462 qsock->path->seqnum, |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
463 ngx_quic_path_state_str(qsock->path)); |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
464 |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
465 /* restore active/backup pointer in quic connection */ |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
466 *tmp = qsock; |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
467 |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
468 return NGX_OK; |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
469 |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
470 failed: |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
471 |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
472 /* |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
473 * socket was closed, path and cid were preserved artifically |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
474 * to be reused, but it didn't happen, thus unref here |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
475 */ |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
476 |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
477 ngx_quic_unref_path(c, path); |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
478 ngx_quic_unref_client_id(c, cid); |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
479 |
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8910
diff
changeset
|
480 return NGX_ERROR; |
8748
e0cb1e58ca13
QUIC: separate files for connection id related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
481 } |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
482 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
483 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
484 ngx_int_t |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
485 ngx_quic_create_sockets(ngx_connection_t *c) |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
486 { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
487 ngx_uint_t n; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
488 ngx_quic_socket_t *qsock; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
489 ngx_quic_connection_t *qc; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
490 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
491 qc = ngx_quic_get_connection(c); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
492 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
493 n = ngx_min(NGX_QUIC_MAX_SERVER_IDS, qc->ctp.active_connection_id_limit); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
494 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
495 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
496 "quic create sockets has:%ui max:%ui", qc->nsockets, n); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
497 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
498 while (qc->nsockets < n) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
499 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
500 qsock = ngx_quic_alloc_socket(c, qc); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
501 if (qsock == NULL) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
502 return NGX_ERROR; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
503 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
504 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
505 if (ngx_quic_listen(c, qc, qsock) != NGX_OK) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
506 return NGX_ERROR; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
507 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
508 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
509 if (ngx_quic_send_server_id(c, &qsock->sid) != NGX_OK) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
510 return NGX_ERROR; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
511 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
512 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
513 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
514 return NGX_OK; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
515 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
516 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
517 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
518 static ngx_int_t |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
519 ngx_quic_send_server_id(ngx_connection_t *c, ngx_quic_server_id_t *sid) |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
520 { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
521 ngx_str_t dcid; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
522 ngx_quic_frame_t *frame; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
523 ngx_quic_connection_t *qc; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
524 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
525 qc = ngx_quic_get_connection(c); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
526 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
527 dcid.len = sid->len; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
528 dcid.data = sid->id; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
529 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
530 frame = ngx_quic_alloc_frame(c); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
531 if (frame == NULL) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
532 return NGX_ERROR; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
533 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
534 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
535 frame->level = ssl_encryption_application; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
536 frame->type = NGX_QUIC_FT_NEW_CONNECTION_ID; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
537 frame->u.ncid.seqnum = sid->seqnum; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
538 frame->u.ncid.retire = 0; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
539 frame->u.ncid.len = NGX_QUIC_SERVER_CID_LEN; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
540 ngx_memcpy(frame->u.ncid.cid, sid->id, NGX_QUIC_SERVER_CID_LEN); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
541 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
542 if (ngx_quic_new_sr_token(c, &dcid, qc->conf->sr_token_key, |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
543 frame->u.ncid.srt) |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
544 != NGX_OK) |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
545 { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
546 return NGX_ERROR; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
547 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
548 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
549 ngx_quic_queue_frame(qc, frame); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
550 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
551 return NGX_OK; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
552 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
553 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
554 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
555 static ngx_int_t |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
556 ngx_quic_replace_retired_client_id(ngx_connection_t *c, |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
557 ngx_quic_client_id_t *retired_cid) |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
558 { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
559 ngx_queue_t *q; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
560 ngx_quic_socket_t *qsock; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
561 ngx_quic_client_id_t *cid; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
562 ngx_quic_connection_t *qc; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
563 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
564 qc = ngx_quic_get_connection(c); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
565 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
566 for (q = ngx_queue_head(&qc->sockets); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
567 q != ngx_queue_sentinel(&qc->sockets); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
568 q = ngx_queue_next(q)) |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
569 { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
570 qsock = ngx_queue_data(q, ngx_quic_socket_t, queue); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
571 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
572 if (qsock->cid == retired_cid) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
573 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
574 cid = ngx_quic_next_client_id(c); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
575 if (cid == NULL) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
576 return NGX_ERROR; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
577 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
578 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
579 qsock->cid = cid; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
580 cid->refcnt++; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
581 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
582 ngx_quic_unref_client_id(c, retired_cid); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
583 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
584 if (retired_cid->refcnt == 0) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
585 return NGX_OK; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
586 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
587 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
588 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
589 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
590 return NGX_OK; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
591 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
592 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
593 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
594 void |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
595 ngx_quic_unref_client_id(ngx_connection_t *c, ngx_quic_client_id_t *cid) |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
596 { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
597 ngx_quic_connection_t *qc; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
598 |
8896
e2ec952dc295
QUIC: fixed removal of unused client IDs.
Vladimir Homutov <vl@nginx.com>
parents:
8797
diff
changeset
|
599 if (cid->refcnt) { |
e2ec952dc295
QUIC: fixed removal of unused client IDs.
Vladimir Homutov <vl@nginx.com>
parents:
8797
diff
changeset
|
600 cid->refcnt--; |
e2ec952dc295
QUIC: fixed removal of unused client IDs.
Vladimir Homutov <vl@nginx.com>
parents:
8797
diff
changeset
|
601 } /* else: unused client id */ |
8763
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
602 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
603 if (cid->refcnt) { |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
604 return; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
605 } |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
606 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
607 qc = ngx_quic_get_connection(c); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
608 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
609 ngx_queue_remove(&cid->queue); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
610 ngx_queue_insert_head(&qc->free_client_ids, &cid->queue); |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
611 |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
|
612 qc->nclient_ids--; |
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8748
diff
changeset
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613 } |