Mercurial > hg > nginx-quic
annotate src/core/ngx_proxy_protocol.c @ 6230:2a621245f4cf
Win32: MSVC 2015 compatibility.
Resolved warnings about declarations that hide previous local declarations.
Warnings about WSASocketA() being deprecated resolved by explicit use of
WSASocketW() instead of WSASocket(). When compiling without IPv6 support,
WinSock deprecated warnings are disabled to allow use of gethostbyname().
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 17 Aug 2015 18:09:17 +0300 |
parents | a420cb1c170b |
children | 28c76d9d75b7 |
rev | line source |
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5605
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Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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1 |
3a72b1805c52
Added server-side support for PROXY protocol v1 (ticket #355).
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2 /* |
3a72b1805c52
Added server-side support for PROXY protocol v1 (ticket #355).
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3 * Copyright (C) Roman Arutyunyan |
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Added server-side support for PROXY protocol v1 (ticket #355).
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4 * Copyright (C) Nginx, Inc. |
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Added server-side support for PROXY protocol v1 (ticket #355).
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5 */ |
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Added server-side support for PROXY protocol v1 (ticket #355).
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6 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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7 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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8 #include <ngx_config.h> |
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Added server-side support for PROXY protocol v1 (ticket #355).
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9 #include <ngx_core.h> |
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Added server-side support for PROXY protocol v1 (ticket #355).
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10 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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11 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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12 u_char * |
6185
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Core: renamed ngx_proxy_protocol_parse to ngx_proxy_protocol_read.
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13 ngx_proxy_protocol_read(ngx_connection_t *c, u_char *buf, u_char *last) |
5605
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Added server-side support for PROXY protocol v1 (ticket #355).
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14 { |
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15 size_t len; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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16 u_char ch, *p, *addr; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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17 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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18 p = buf; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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19 len = last - buf; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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20 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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21 if (len < 8 || ngx_strncmp(p, "PROXY ", 6) != 0) { |
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Added server-side support for PROXY protocol v1 (ticket #355).
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22 goto invalid; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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23 } |
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Added server-side support for PROXY protocol v1 (ticket #355).
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24 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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25 p += 6; |
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26 len -= 6; |
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27 |
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28 if (len >= 7 && ngx_strncmp(p, "UNKNOWN", 7) == 0) { |
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29 ngx_log_debug0(NGX_LOG_DEBUG_CORE, c->log, 0, |
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30 "PROXY protocol unknown protocol"); |
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31 p += 7; |
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32 goto skip; |
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33 } |
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34 |
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35 if (len < 5 || ngx_strncmp(p, "TCP", 3) != 0 |
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36 || (p[3] != '4' && p[3] != '6') || p[4] != ' ') |
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37 { |
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38 goto invalid; |
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39 } |
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Added server-side support for PROXY protocol v1 (ticket #355).
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40 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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41 p += 5; |
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42 addr = p; |
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43 |
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44 for ( ;; ) { |
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45 if (p == last) { |
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46 goto invalid; |
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47 } |
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48 |
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49 ch = *p++; |
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50 |
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51 if (ch == ' ') { |
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52 break; |
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53 } |
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54 |
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55 if (ch != ':' && ch != '.' |
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56 && (ch < 'a' || ch > 'f') |
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57 && (ch < 'A' || ch > 'F') |
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58 && (ch < '0' || ch > '9')) |
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59 { |
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60 goto invalid; |
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61 } |
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62 } |
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63 |
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64 len = p - addr - 1; |
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65 c->proxy_protocol_addr.data = ngx_pnalloc(c->pool, len); |
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66 |
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67 if (c->proxy_protocol_addr.data == NULL) { |
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68 return NULL; |
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69 } |
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70 |
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71 ngx_memcpy(c->proxy_protocol_addr.data, addr, len); |
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72 c->proxy_protocol_addr.len = len; |
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73 |
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74 ngx_log_debug1(NGX_LOG_DEBUG_CORE, c->log, 0, |
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75 "PROXY protocol address: \"%V\"", &c->proxy_protocol_addr); |
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76 |
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77 skip: |
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78 |
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79 for ( /* void */ ; p < last - 1; p++) { |
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80 if (p[0] == CR && p[1] == LF) { |
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81 return p + 2; |
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82 } |
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83 } |
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84 |
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85 invalid: |
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86 |
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87 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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88 "broken header: \"%*s\"", (size_t) (last - buf), buf); |
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Added server-side support for PROXY protocol v1 (ticket #355).
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89 |
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90 return NULL; |
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91 } |
6184
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Stream: client-side PROXY protocol.
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92 |
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93 |
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94 u_char * |
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95 ngx_proxy_protocol_write(ngx_connection_t *c, u_char *buf, u_char *last) |
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96 { |
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97 ngx_uint_t port, lport; |
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98 |
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99 if (last - buf < NGX_PROXY_PROTOCOL_MAX_HEADER) { |
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100 return NULL; |
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101 } |
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102 |
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103 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) { |
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104 return NULL; |
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105 } |
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106 |
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107 switch (c->sockaddr->sa_family) { |
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108 |
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109 case AF_INET: |
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110 buf = ngx_cpymem(buf, "PROXY TCP4 ", sizeof("PROXY TCP4 ") - 1); |
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111 |
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112 port = ntohs(((struct sockaddr_in *) c->sockaddr)->sin_port); |
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113 lport = ntohs(((struct sockaddr_in *) c->local_sockaddr)->sin_port); |
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114 |
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115 break; |
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116 |
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117 #if (NGX_HAVE_INET6) |
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118 case AF_INET6: |
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119 buf = ngx_cpymem(buf, "PROXY TCP6 ", sizeof("PROXY TCP6 ") - 1); |
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120 |
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121 port = ntohs(((struct sockaddr_in6 *) c->sockaddr)->sin6_port); |
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122 lport = ntohs(((struct sockaddr_in6 *) c->local_sockaddr)->sin6_port); |
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123 |
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124 break; |
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125 #endif |
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126 |
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127 default: |
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128 return ngx_cpymem(buf, "PROXY UNKNOWN" CRLF, |
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129 sizeof("PROXY UNKNOWN" CRLF) - 1); |
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130 } |
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131 |
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132 buf += ngx_sock_ntop(c->sockaddr, c->socklen, buf, last - buf, 0); |
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133 |
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134 *buf++ = ' '; |
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135 |
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136 buf += ngx_sock_ntop(c->local_sockaddr, c->local_socklen, buf, last - buf, |
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137 0); |
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138 |
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139 return ngx_slprintf(buf, last, " %ui %ui" CRLF, port, lport); |
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140 } |