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Generate error for unsupported IPv6 transparent proxy.
On some platforms (for example, Linux with glibc 2.12-2.25) IPv4 transparent proxying is available, but IPv6 transparent proxying is not. The entire feature is enabled in this case and NGX_HAVE_TRANSPARENT_PROXY macro is set to 1. Previously, an attempt to enable transparency for an IPv6 socket was silently ignored in this case and was usually followed by a bind(2) EADDRNOTAVAIL error (ticket #1487). Now the error is generated for unavailable IPv6 transparent proxy.
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@ -388,7 +388,16 @@ ngx_event_connect_set_transparent(ngx_peer_connection_t *pc, ngx_socket_t s)
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return NGX_ERROR;
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}
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#else
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ngx_log_error(NGX_LOG_ALERT, pc->log, 0,
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"could not enable transparent proxying for IPv6 "
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"on this platform");
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return NGX_ERROR;
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#endif
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break;
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#endif /* NGX_HAVE_INET6 */
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