Apache Module mod_proxy_fdpass
Description: | fdpass external process support module for mod_proxy
|
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Status: | Extension |
ModuleIdentifier: | proxy_fdpass_module |
SourceFile: | mod_proxy_fdpass.c |
Compatibility: | Available for unix in version 2.3 and later |
Summary
This module requires the service of mod_proxy
. It provides support for the passing the socket of the client to another process.
mod_proxy_fdpass
uses the ability of AF_UNIX domain sockets to pass an open file descriptor to allow another process to finish handling a request.
The module has a proxy_fdpass_flusher
provider interface, which allows another module to optionally send the response headers, or even the start of the response body. The default flush
provider disables keep-alive, and sends the response headers, letting the external process just send a response body.
In order to use another provider, you have to set the flusher
parameter in the ProxyPass
directive.
At this time the only data passed to the external process is the client socket. To receive a client socket, call recvfrom with an allocated struct cmsghdr
. Future versions of this module may include more data after the client socket, but this is not implemented at this time.
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