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annotate src/event/quic/ngx_event_quic_tokens.c @ 8763:4117aa7fa38e quic

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QUIC: connection migration. The patch adds proper transitions between multiple networking addresses that can be used by a single quic connection. New networking paths are validated using PATH_CHALLENGE/PATH_RESPONSE frames.
author Vladimir Homutov <vl@nginx.com>
date Thu, 29 Apr 2021 15:35:02 +0300
parents b4e6b7049984
children 2029a30863e2
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8752
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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_sha1.h>
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11 #include <ngx_event_quic_connection.h>
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13
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14 #define NGX_QUIC_MAX_TOKEN_SIZE 64
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15 /* SHA-1(addr)=20 + sizeof(time_t) + retry(1) + odcid.len(1) + odcid */
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17
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18 static void ngx_quic_address_hash(struct sockaddr *sockaddr, socklen_t socklen,
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19 ngx_uint_t no_port, u_char buf[20]);
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21
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22 ngx_int_t
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23 ngx_quic_new_sr_token(ngx_connection_t *c, ngx_str_t *cid, u_char *secret,
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24 u_char *token)
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25 {
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26 ngx_str_t tmp;
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27
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28 tmp.data = secret;
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29 tmp.len = NGX_QUIC_SR_KEY_LEN;
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30
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31 if (ngx_quic_derive_key(c->log, "sr_token_key", &tmp, cid, token,
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32 NGX_QUIC_SR_TOKEN_LEN)
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33 != NGX_OK)
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34 {
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35 return NGX_ERROR;
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36 }
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37
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38 #if (NGX_DEBUG)
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39 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
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40 "quic stateless reset token %*xs",
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41 (size_t) NGX_QUIC_SR_TOKEN_LEN, token);
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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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47
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48 ngx_int_t
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49 ngx_quic_new_token(ngx_connection_t *c, struct sockaddr *sockaddr,
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50 socklen_t socklen, u_char *key, ngx_str_t *token, ngx_str_t *odcid,
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51 time_t exp, ngx_uint_t is_retry)
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52 {
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53 int len, iv_len;
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54 u_char *p, *iv;
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55 EVP_CIPHER_CTX *ctx;
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56 const EVP_CIPHER *cipher;
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57
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58 u_char in[NGX_QUIC_MAX_TOKEN_SIZE];
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59
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60 ngx_quic_address_hash(sockaddr, socklen, !is_retry, in);
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61
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62 p = in + 20;
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63
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64 p = ngx_cpymem(p, &exp, sizeof(time_t));
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65
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66 *p++ = is_retry ? 1 : 0;
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67
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68 if (odcid) {
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69 *p++ = odcid->len;
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70 p = ngx_cpymem(p, odcid->data, odcid->len);
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71
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72 } else {
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73 *p++ = 0;
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74 }
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75
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76 len = p - in;
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77
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78 cipher = EVP_aes_256_cbc();
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79 iv_len = EVP_CIPHER_iv_length(cipher);
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80
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81 token->len = iv_len + len + EVP_CIPHER_block_size(cipher);
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82 token->data = ngx_pnalloc(c->pool, token->len);
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83 if (token->data == NULL) {
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84 return NGX_ERROR;
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85 }
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86
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87 ctx = EVP_CIPHER_CTX_new();
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88 if (ctx == NULL) {
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89 return NGX_ERROR;
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90 }
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91
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92 iv = token->data;
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93
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94 if (RAND_bytes(iv, iv_len) <= 0
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95 || !EVP_EncryptInit_ex(ctx, cipher, NULL, key, iv))
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96 {
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97 EVP_CIPHER_CTX_free(ctx);
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98 return NGX_ERROR;
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99 }
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100
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101 token->len = iv_len;
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102
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103 if (EVP_EncryptUpdate(ctx, token->data + token->len, &len, in, len) != 1) {
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104 EVP_CIPHER_CTX_free(ctx);
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105 return NGX_ERROR;
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106 }
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107
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108 token->len += len;
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109
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110 if (EVP_EncryptFinal_ex(ctx, token->data + token->len, &len) <= 0) {
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111 EVP_CIPHER_CTX_free(ctx);
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112 return NGX_ERROR;
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113 }
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114
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115 token->len += len;
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116
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117 EVP_CIPHER_CTX_free(ctx);
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118
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119 #ifdef NGX_QUIC_DEBUG_PACKETS
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120 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
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121 "quic new token len:%uz %xV", token->len, token);
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122 #endif
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123
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124 return NGX_OK;
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125 }
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126
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127
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128 static void
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129 ngx_quic_address_hash(struct sockaddr *sockaddr, socklen_t socklen,
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130 ngx_uint_t no_port, u_char buf[20])
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131 {
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132 size_t len;
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133 u_char *data;
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134 ngx_sha1_t sha1;
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135 struct sockaddr_in *sin;
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136 #if (NGX_HAVE_INET6)
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137 struct sockaddr_in6 *sin6;
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138 #endif
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139
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140 len = (size_t) socklen;
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141 data = (u_char *) sockaddr;
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142
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143 if (no_port) {
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144 switch (sockaddr->sa_family) {
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diff changeset
145
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
146 #if (NGX_HAVE_INET6)
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
147 case AF_INET6:
8763
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
148 sin6 = (struct sockaddr_in6 *) sockaddr;
8752
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
149
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
150 len = sizeof(struct in6_addr);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
151 data = sin6->sin6_addr.s6_addr;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
152
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
153 break;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
154 #endif
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
155
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
156 case AF_INET:
8763
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
157 sin = (struct sockaddr_in *) sockaddr;
8752
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
158
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
159 len = sizeof(in_addr_t);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
160 data = (u_char *) &sin->sin_addr;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
161
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
162 break;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
163 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
164 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
165
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
166 ngx_sha1_init(&sha1);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
167 ngx_sha1_update(&sha1, data, len);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
168 ngx_sha1_final(buf, &sha1);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
169 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
170
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
171
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
172 ngx_int_t
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
173 ngx_quic_validate_token(ngx_connection_t *c, u_char *key,
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
174 ngx_quic_header_t *pkt)
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
175 {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
176 int len, tlen, iv_len;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
177 u_char *iv, *p;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
178 time_t now, exp;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
179 size_t total;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
180 ngx_str_t odcid;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
181 EVP_CIPHER_CTX *ctx;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
182 const EVP_CIPHER *cipher;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
183
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
184 u_char addr_hash[20];
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
185 u_char tdec[NGX_QUIC_MAX_TOKEN_SIZE];
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
186
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
187 /* Retry token or NEW_TOKEN in a previous connection */
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
188
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
189 cipher = EVP_aes_256_cbc();
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
190 iv = pkt->token.data;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
191 iv_len = EVP_CIPHER_iv_length(cipher);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
192
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
193 /* sanity checks */
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
194
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
195 if (pkt->token.len < (size_t) iv_len + EVP_CIPHER_block_size(cipher)) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
196 goto garbage;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
197 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
198
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
199 if (pkt->token.len > (size_t) iv_len + NGX_QUIC_MAX_TOKEN_SIZE) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
200 goto garbage;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
201 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
202
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
203 ctx = EVP_CIPHER_CTX_new();
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
204 if (ctx == NULL) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
205 return NGX_ERROR;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
206 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
207
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
208 if (!EVP_DecryptInit_ex(ctx, cipher, NULL, key, iv)) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
209 EVP_CIPHER_CTX_free(ctx);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
210 return NGX_ERROR;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
211 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
212
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
213 p = pkt->token.data + iv_len;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
214 len = pkt->token.len - iv_len;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
215
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
216 if (EVP_DecryptUpdate(ctx, tdec, &len, p, len) != 1) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
217 EVP_CIPHER_CTX_free(ctx);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
218 goto garbage;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
219 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
220 total = len;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
221
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
222 if (EVP_DecryptFinal_ex(ctx, tdec + len, &tlen) <= 0) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
223 EVP_CIPHER_CTX_free(ctx);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
224 goto garbage;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
225 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
226 total += tlen;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
227
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
228 EVP_CIPHER_CTX_free(ctx);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
229
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
230 if (total < (20 + sizeof(time_t) + 2)) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
231 goto garbage;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
232 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
233
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
234 p = tdec + 20;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
235
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
236 ngx_memcpy(&exp, p, sizeof(time_t));
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
237 p += sizeof(time_t);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
238
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
239 pkt->retried = (*p++ == 1);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
240
8763
4117aa7fa38e QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents: 8755
diff changeset
241 ngx_quic_address_hash(c->sockaddr, c->socklen, !pkt->retried, addr_hash);
8752
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
242
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
243 if (ngx_memcmp(tdec, addr_hash, 20) != 0) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
244 goto bad_token;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
245 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
246
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
247 odcid.len = *p++;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
248 if (odcid.len) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
249 if (odcid.len > NGX_QUIC_MAX_CID_LEN) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
250 goto bad_token;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
251 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
252
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
253 if ((size_t)(tdec + total - p) < odcid.len) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
254 goto bad_token;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
255 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
256
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
257 odcid.data = p;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
258 p += odcid.len;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
259 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
260
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
261 now = ngx_time();
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
262
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
263 if (now > exp) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
264 ngx_log_error(NGX_LOG_INFO, c->log, 0, "quic expired token");
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
265 return NGX_DECLINED;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
266 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
267
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
268 if (odcid.len) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
269 pkt->odcid.len = odcid.len;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
270 pkt->odcid.data = ngx_pstrdup(c->pool, &odcid);
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
271 if (pkt->odcid.data == NULL) {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
272 return NGX_ERROR;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
273 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
274
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
275 } else {
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
276 pkt->odcid = pkt->dcid;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
277 }
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
278
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
279 pkt->validated = 1;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
280
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
281 return NGX_OK;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
282
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
283 garbage:
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
284
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
285 ngx_log_error(NGX_LOG_INFO, c->log, 0, "quic garbage token");
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
286
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
287 return NGX_ABORT;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
288
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
289 bad_token:
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
290
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
291 ngx_log_error(NGX_LOG_INFO, c->log, 0, "quic invalid token");
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
292
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
293 return NGX_DECLINED;
e19723c40d28 QUIC: separate files for tokens related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
294 }