Mercurial > hg > nginx
annotate src/event/ngx_event_quic.h @ 8221:69345a26ba69 quic
Split transport and crypto parts into separate files.
New files:
src/event/ngx_event_quic_protection.h
src/event/ngx_event_quic_protection.c
The protection.h header provides interface to the crypto part of the QUIC:
2 functions to initialize corresponding secrets:
ngx_quic_set_initial_secret()
ngx_quic_set_encryption_secret()
and 2 functions to deal with packet processing:
ngx_quic_encrypt()
ngx_quic_decrypt()
Also, structures representing secrets are defined there.
All functions require SSL connection and a pool, only crypto operations
inside, no access to nginx connections or events.
Currently pool->log is used for the logging (instead of original c->log).
author | Vladimir Homutov <vl@nginx.com> |
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date | Mon, 16 Mar 2020 19:00:47 +0300 |
parents | 38c0898b6df7 |
children | 61f9b873e2e7 |
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 #ifndef _NGX_EVENT_QUIC_H_INCLUDED_ |
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8 #define _NGX_EVENT_QUIC_H_INCLUDED_ |
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9 |
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10 |
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11 #include <ngx_event_openssl.h> |
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12 |
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13 |
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14 #define quic_version 0xff000018 /* draft-24 */ |
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15 |
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16 /* 17.2. Long Header Packets */ |
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17 |
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18 #define NGX_QUIC_PKT_LONG 0x80 |
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19 |
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20 #define NGX_QUIC_PKT_INITIAL 0xc0 |
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21 #define NGX_QUIC_PKT_HANDSHAKE 0xe0 |
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22 |
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23 |
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24 #if (NGX_HAVE_NONALIGNED) |
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25 |
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26 #define ngx_quic_parse_uint16(p) ntohs(*(uint16_t *) (p)) |
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27 #define ngx_quic_parse_uint32(p) ntohl(*(uint32_t *) (p)) |
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28 |
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29 #define ngx_quic_write_uint16 ngx_quic_write_uint16_aligned |
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30 #define ngx_quic_write_uint32 ngx_quic_write_uint32_aligned |
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31 |
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32 #else |
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33 |
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34 #define ngx_quic_parse_uint16(p) ((p)[0] << 8 | (p)[1]) |
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35 #define ngx_quic_parse_uint32(p) \ |
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36 ((uint32_t) (p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3]) |
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37 |
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38 #define ngx_quic_write_uint16(p, s) \ |
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39 ((p)[0] = (u_char) ((s) >> 8), \ |
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40 (p)[1] = (u_char) (s), \ |
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41 (p) + sizeof(uint16_t)) |
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42 |
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43 #define ngx_quic_write_uint32(p, s) \ |
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44 ((p)[0] = (u_char) ((s) >> 24), \ |
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45 (p)[1] = (u_char) ((s) >> 16), \ |
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46 (p)[2] = (u_char) ((s) >> 8), \ |
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47 (p)[3] = (u_char) (s), \ |
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48 (p) + sizeof(uint32_t)) |
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49 |
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50 #endif |
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51 |
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52 |
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53 #define ngx_quic_write_uint16_aligned(p, s) \ |
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54 (*(uint16_t *) (p) = htons((uint16_t) (s)), (p) + sizeof(uint16_t)) |
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55 |
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56 #define ngx_quic_write_uint32_aligned(p, s) \ |
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57 (*(uint32_t *) (p) = htonl((uint32_t) (s)), (p) + sizeof(uint32_t)) |
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58 |
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59 #define ngx_quic_varint_len(value) \ |
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60 ((value) <= 63 ? 1 \ |
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61 : ((uint32_t) value) <= 16383 ? 2 \ |
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62 : ((uint64_t) value) <= 1073741823 ? 4 \ |
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63 : 8) |
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64 |
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65 |
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66 struct ngx_quic_stream_s { |
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67 uint64_t id; |
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68 ngx_uint_t unidirectional:1; |
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69 ngx_connection_t *parent; |
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71 }; |
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72 |
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73 typedef struct ngx_quic_secret_s ngx_quic_secret_t; |
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74 typedef enum ssl_encryption_level_t ngx_quic_level_t; |
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75 |
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76 typedef struct { |
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77 ngx_quic_secret_t *secret; |
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78 ngx_uint_t type; |
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79 ngx_uint_t *number; |
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80 ngx_uint_t flags; |
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81 uint32_t version; |
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82 ngx_str_t token; |
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83 ngx_quic_level_t level; |
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84 |
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85 /* filled in by parser */ |
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86 ngx_buf_t *raw; /* udp datagram from wire */ |
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87 |
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88 u_char *data; /* quic packet */ |
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89 size_t len; |
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90 |
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91 /* cleartext fields */ |
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92 ngx_str_t dcid; |
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93 ngx_str_t scid; |
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94 |
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95 uint64_t pn; |
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96 |
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97 ngx_str_t payload; /* decrypted payload */ |
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98 |
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99 } ngx_quic_header_t; |
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100 |
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101 void ngx_quic_build_int(u_char **pos, uint64_t value); |
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103 void ngx_quic_init_ssl_methods(SSL_CTX* ctx); |
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104 |
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105 void ngx_quic_run(ngx_connection_t *c, ngx_ssl_t *ssl, ngx_msec_t timeout, |
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106 ngx_connection_handler_pt handler); |
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107 ngx_connection_t *ngx_quic_create_uni_stream(ngx_connection_t *c); |
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108 |
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109 |
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110 /********************************* DEBUG *************************************/ |
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111 |
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112 #if (NGX_DEBUG) |
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113 |
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114 #define ngx_quic_hexdump(log, fmt, data, len, ...) \ |
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115 do { \ |
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116 ngx_int_t m; \ |
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117 u_char buf[2048]; \ |
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118 \ |
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119 if (log->log_level & NGX_LOG_DEBUG_EVENT) { \ |
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120 m = ngx_hex_dump(buf, (u_char *) data, ngx_min(len, 1024)) - buf; \ |
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121 ngx_log_debug(NGX_LOG_DEBUG_EVENT, log, 0, \ |
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122 "%s: " fmt " %*s%s, len: %uz", \ |
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123 __FUNCTION__, __VA_ARGS__, m, buf, \ |
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124 len < 2048 ? "" : "...", len); \ |
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125 } \ |
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126 } while (0) |
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127 |
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128 #else |
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129 |
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130 #define ngx_quic_hexdump(log, fmt, data, len, ...) |
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131 |
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132 #endif |
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133 |
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134 #define ngx_quic_hexdump0(log, fmt, data, len) \ |
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135 ngx_quic_hexdump(log, fmt "%s", data, len, "") \ |
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136 |
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137 |
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138 #endif /* _NGX_EVENT_QUIC_H_INCLUDED_ */ |