Mercurial > hg > nginx-quic
annotate src/core/ngx_proxy_protocol.c @ 5980:ccad84a174e0
Refactored sendfile() AIO preload.
This reduces layering violation and simplifies the logic of AIO preread, since
it's now triggered by the send chain function itself without falling back to
the copy filter. The context of AIO operation is now stored per file buffer,
which makes it possible to properly handle cases when multiple buffers come
from different locations, each with its own configuration.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Wed, 11 Feb 2015 17:52:15 +0300 |
parents | 3a72b1805c52 |
children | fa663739e115 |
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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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 |
3a72b1805c52
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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13 ngx_proxy_protocol_parse(ngx_connection_t *c, u_char *buf, u_char *last) |
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14 { |
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15 size_t len; |
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16 u_char ch, *p, *addr; |
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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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19 len = last - buf; |
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20 |
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21 if (len < 8 || ngx_strncmp(p, "PROXY ", 6) != 0) { |
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22 goto invalid; |
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23 } |
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24 |
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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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40 |
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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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89 |
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90 return NULL; |
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91 } |