Issue 3654 addr based loop detection #5767
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…as the inbound already connected to. Closes apache#3654
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[approve ci autest] |
shinrich
approved these changes
Aug 8, 2019
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@SolidWallOfCode there is a Machine::is_self(const char *name) and a Machine::is_self(const IPaddr *ipaddr). at ATS startup, the IP's of all the configured network interfaces are in a map, is_self(ipaddr) will tell you if the ipaddr is it self. |
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This fixes two distinct problems.
IP address based loop detection for single address systems. As far as I can tell, loop detection doesn't work on hosts with a single address, due to port byte ordering problems.
Issue ATS request cycle in multiple network interface #3654 - the address based check only checks a single address. If the request is for a different address on the same machine, to which a proxy port is bound (common case) then the loop is not detected. This fix checks if the destination address / port is the same as the inbound local address / port, which means the connection is looping.