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annotate src/core/ngx_proxy_protocol.c @ 6185:a420cb1c170b

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Core: renamed ngx_proxy_protocol_parse to ngx_proxy_protocol_read. The new name is consistent with the ngx_proxy_protocol_write function.
author Roman Arutyunyan <arut@nginx.com>
date Tue, 16 Jun 2015 13:45:19 +0300
parents fa663739e115
children 28c76d9d75b7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5605
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
diff changeset
1
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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4 * Copyright (C) Nginx, Inc.
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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5 */
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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6
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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diff changeset
7
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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diff changeset
8 #include <ngx_config.h>
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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9 #include <ngx_core.h>
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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10
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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11
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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12 u_char *
6185
a420cb1c170b Core: renamed ngx_proxy_protocol_parse to ngx_proxy_protocol_read.
Roman Arutyunyan <arut@nginx.com>
parents: 6184
diff changeset
13 ngx_proxy_protocol_read(ngx_connection_t *c, u_char *buf, u_char *last)
5605
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
diff changeset
14 {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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15 size_t len;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
diff changeset
16 u_char ch, *p, *addr;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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17
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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18 p = buf;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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19 len = last - buf;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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20
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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21 if (len < 8 || ngx_strncmp(p, "PROXY ", 6) != 0) {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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22 goto invalid;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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23 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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24
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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25 p += 6;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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26 len -= 6;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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27
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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28 if (len >= 7 && ngx_strncmp(p, "UNKNOWN", 7) == 0) {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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29 ngx_log_debug0(NGX_LOG_DEBUG_CORE, c->log, 0,
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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30 "PROXY protocol unknown protocol");
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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31 p += 7;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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32 goto skip;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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33 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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34
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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35 if (len < 5 || ngx_strncmp(p, "TCP", 3) != 0
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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36 || (p[3] != '4' && p[3] != '6') || p[4] != ' ')
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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37 {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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38 goto invalid;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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39 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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40
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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41 p += 5;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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42 addr = p;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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43
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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44 for ( ;; ) {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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45 if (p == last) {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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46 goto invalid;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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47 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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48
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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49 ch = *p++;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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50
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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51 if (ch == ' ') {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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52 break;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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53 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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54
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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55 if (ch != ':' && ch != '.'
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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56 && (ch < 'a' || ch > 'f')
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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57 && (ch < 'A' || ch > 'F')
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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58 && (ch < '0' || ch > '9'))
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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59 {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
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60 goto invalid;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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61 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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62 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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63
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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64 len = p - addr - 1;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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65 c->proxy_protocol_addr.data = ngx_pnalloc(c->pool, len);
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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66
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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67 if (c->proxy_protocol_addr.data == NULL) {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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68 return NULL;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
diff changeset
69 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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70
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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71 ngx_memcpy(c->proxy_protocol_addr.data, addr, len);
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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72 c->proxy_protocol_addr.len = len;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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73
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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74 ngx_log_debug1(NGX_LOG_DEBUG_CORE, c->log, 0,
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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75 "PROXY protocol address: \"%V\"", &c->proxy_protocol_addr);
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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76
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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77 skip:
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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78
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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79 for ( /* void */ ; p < last - 1; p++) {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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80 if (p[0] == CR && p[1] == LF) {
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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81 return p + 2;
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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82 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
diff changeset
83 }
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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84
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
diff changeset
85 invalid:
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
Roman Arutyunyan <arut@nginx.com>
parents:
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86
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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87 ngx_log_error(NGX_LOG_ERR, c->log, 0,
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
diff changeset
88 "broken header: \"%*s\"", (size_t) (last - buf), buf);
3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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parents:
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89
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90 return NULL;
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Roman Arutyunyan <arut@nginx.com>
parents:
diff changeset
91 }
6184
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
92
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
93
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
94 u_char *
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
95 ngx_proxy_protocol_write(ngx_connection_t *c, u_char *buf, u_char *last)
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
96 {
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
97 ngx_uint_t port, lport;
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
98
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
99 if (last - buf < NGX_PROXY_PROTOCOL_MAX_HEADER) {
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
100 return NULL;
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
101 }
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
102
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
103 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
104 return NULL;
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
105 }
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
106
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
107 switch (c->sockaddr->sa_family) {
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
108
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
109 case AF_INET:
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
110 buf = ngx_cpymem(buf, "PROXY TCP4 ", sizeof("PROXY TCP4 ") - 1);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
111
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
112 port = ntohs(((struct sockaddr_in *) c->sockaddr)->sin_port);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
113 lport = ntohs(((struct sockaddr_in *) c->local_sockaddr)->sin_port);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
114
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
115 break;
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
116
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
117 #if (NGX_HAVE_INET6)
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
118 case AF_INET6:
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
119 buf = ngx_cpymem(buf, "PROXY TCP6 ", sizeof("PROXY TCP6 ") - 1);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
120
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
121 port = ntohs(((struct sockaddr_in6 *) c->sockaddr)->sin6_port);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
122 lport = ntohs(((struct sockaddr_in6 *) c->local_sockaddr)->sin6_port);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
123
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
124 break;
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
125 #endif
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
126
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
127 default:
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
128 return ngx_cpymem(buf, "PROXY UNKNOWN" CRLF,
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
129 sizeof("PROXY UNKNOWN" CRLF) - 1);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
130 }
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
131
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
132 buf += ngx_sock_ntop(c->sockaddr, c->socklen, buf, last - buf, 0);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
133
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
134 *buf++ = ' ';
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
135
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
136 buf += ngx_sock_ntop(c->local_sockaddr, c->local_socklen, buf, last - buf,
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
137 0);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
138
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
139 return ngx_slprintf(buf, last, " %ui %ui" CRLF, port, lport);
fa663739e115 Stream: client-side PROXY protocol.
Roman Arutyunyan <arut@nginx.com>
parents: 5605
diff changeset
140 }