Mercurial > hg > nginx-quic
annotate src/core/ngx_proxy_protocol.c @ 6968:29ba1d6a2da9
release-1.11.13 tag
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 04 Apr 2017 18:01:57 +0300 |
parents | b3b7e33083ac |
children | 416953ef0428 |
rev | line source |
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5605
3a72b1805c52
Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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1 |
3a72b1805c52
Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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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 |
3a72b1805c52
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 * |
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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) |
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Added server-side support for PROXY protocol v1 (ticket #355).
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14 { |
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Added the $proxy_protocol_port variable.
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15 size_t len; |
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16 u_char ch, *p, *addr, *port; |
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17 ngx_int_t n; |
5605
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Added server-side support for PROXY protocol v1 (ticket #355).
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18 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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19 p = buf; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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20 len = last - buf; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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21 |
3a72b1805c52
Added server-side support for PROXY protocol v1 (ticket #355).
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22 if (len < 8 || ngx_strncmp(p, "PROXY ", 6) != 0) { |
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23 goto invalid; |
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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 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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26 p += 6; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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27 len -= 6; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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28 |
3a72b1805c52
Added server-side support for PROXY protocol v1 (ticket #355).
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29 if (len >= 7 && ngx_strncmp(p, "UNKNOWN", 7) == 0) { |
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Added server-side support for PROXY protocol v1 (ticket #355).
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30 ngx_log_debug0(NGX_LOG_DEBUG_CORE, c->log, 0, |
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31 "PROXY protocol unknown protocol"); |
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32 p += 7; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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33 goto skip; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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34 } |
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Added server-side support for PROXY protocol v1 (ticket #355).
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35 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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36 if (len < 5 || ngx_strncmp(p, "TCP", 3) != 0 |
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37 || (p[3] != '4' && p[3] != '6') || p[4] != ' ') |
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Added server-side support for PROXY protocol v1 (ticket #355).
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38 { |
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Added server-side support for PROXY protocol v1 (ticket #355).
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39 goto invalid; |
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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 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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42 p += 5; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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43 addr = p; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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44 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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45 for ( ;; ) { |
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46 if (p == last) { |
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47 goto invalid; |
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48 } |
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Added server-side support for PROXY protocol v1 (ticket #355).
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49 |
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50 ch = *p++; |
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51 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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52 if (ch == ' ') { |
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Added server-side support for PROXY protocol v1 (ticket #355).
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53 break; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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54 } |
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Added server-side support for PROXY protocol v1 (ticket #355).
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55 |
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56 if (ch != ':' && ch != '.' |
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57 && (ch < 'a' || ch > 'f') |
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58 && (ch < 'A' || ch > 'F') |
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59 && (ch < '0' || ch > '9')) |
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60 { |
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61 goto invalid; |
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62 } |
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63 } |
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64 |
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65 len = p - addr - 1; |
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66 c->proxy_protocol_addr.data = ngx_pnalloc(c->pool, len); |
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67 |
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68 if (c->proxy_protocol_addr.data == NULL) { |
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69 return NULL; |
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70 } |
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71 |
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72 ngx_memcpy(c->proxy_protocol_addr.data, addr, len); |
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73 c->proxy_protocol_addr.len = len; |
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74 |
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75 for ( ;; ) { |
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76 if (p == last) { |
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77 goto invalid; |
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78 } |
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79 |
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80 if (*p++ == ' ') { |
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81 break; |
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82 } |
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Added the $proxy_protocol_port variable.
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83 } |
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Added the $proxy_protocol_port variable.
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84 |
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Added the $proxy_protocol_port variable.
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85 port = p; |
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86 |
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Added the $proxy_protocol_port variable.
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87 for ( ;; ) { |
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Added the $proxy_protocol_port variable.
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88 if (p == last) { |
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Added the $proxy_protocol_port variable.
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89 goto invalid; |
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Added the $proxy_protocol_port variable.
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90 } |
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Added the $proxy_protocol_port variable.
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91 |
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Added the $proxy_protocol_port variable.
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92 if (*p++ == ' ') { |
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Added the $proxy_protocol_port variable.
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93 break; |
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94 } |
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Added the $proxy_protocol_port variable.
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95 } |
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Added the $proxy_protocol_port variable.
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96 |
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Added the $proxy_protocol_port variable.
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97 len = p - port - 1; |
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98 |
28c76d9d75b7
Added the $proxy_protocol_port variable.
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99 n = ngx_atoi(port, len); |
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Added the $proxy_protocol_port variable.
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100 |
28c76d9d75b7
Added the $proxy_protocol_port variable.
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101 if (n < 0 || n > 65535) { |
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Added the $proxy_protocol_port variable.
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102 goto invalid; |
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Added the $proxy_protocol_port variable.
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parents:
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103 } |
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Added the $proxy_protocol_port variable.
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104 |
28c76d9d75b7
Added the $proxy_protocol_port variable.
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105 c->proxy_protocol_port = (in_port_t) n; |
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Added the $proxy_protocol_port variable.
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106 |
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Added the $proxy_protocol_port variable.
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107 ngx_log_debug2(NGX_LOG_DEBUG_CORE, c->log, 0, |
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Added the $proxy_protocol_port variable.
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108 "PROXY protocol address: %V %i", &c->proxy_protocol_addr, n); |
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109 |
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110 skip: |
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111 |
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112 for ( /* void */ ; p < last - 1; p++) { |
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Added server-side support for PROXY protocol v1 (ticket #355).
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113 if (p[0] == CR && p[1] == LF) { |
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Added server-side support for PROXY protocol v1 (ticket #355).
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114 return p + 2; |
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Added server-side support for PROXY protocol v1 (ticket #355).
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115 } |
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Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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116 } |
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117 |
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118 invalid: |
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119 |
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120 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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121 "broken header: \"%*s\"", (size_t) (last - buf), buf); |
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122 |
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123 return NULL; |
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124 } |
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125 |
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126 |
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127 u_char * |
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128 ngx_proxy_protocol_write(ngx_connection_t *c, u_char *buf, u_char *last) |
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129 { |
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130 ngx_uint_t port, lport; |
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131 |
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132 if (last - buf < NGX_PROXY_PROTOCOL_MAX_HEADER) { |
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133 return NULL; |
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134 } |
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135 |
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136 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) { |
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137 return NULL; |
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138 } |
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139 |
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140 switch (c->sockaddr->sa_family) { |
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141 |
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142 case AF_INET: |
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143 buf = ngx_cpymem(buf, "PROXY TCP4 ", sizeof("PROXY TCP4 ") - 1); |
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144 break; |
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145 |
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146 #if (NGX_HAVE_INET6) |
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147 case AF_INET6: |
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148 buf = ngx_cpymem(buf, "PROXY TCP6 ", sizeof("PROXY TCP6 ") - 1); |
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149 break; |
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150 #endif |
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151 |
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152 default: |
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153 return ngx_cpymem(buf, "PROXY UNKNOWN" CRLF, |
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154 sizeof("PROXY UNKNOWN" CRLF) - 1); |
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155 } |
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156 |
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157 buf += ngx_sock_ntop(c->sockaddr, c->socklen, buf, last - buf, 0); |
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158 |
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159 *buf++ = ' '; |
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160 |
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161 buf += ngx_sock_ntop(c->local_sockaddr, c->local_socklen, buf, last - buf, |
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162 0); |
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163 |
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164 port = ngx_inet_get_port(c->sockaddr); |
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165 lport = ngx_inet_get_port(c->local_sockaddr); |
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166 |
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167 return ngx_slprintf(buf, last, " %ui %ui" CRLF, port, lport); |
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168 } |