NAME

       Local outbound address - get or set the local IP address for outbound connections

SYNOPSIS

          #include <ts/ts.h>

       sockaddr const *TSHttpTxnOutgoingAddrGet(TSHttpTxn txnp)

       TSReturnCode TSHttpTxnOutgoingAddrSet(TSHttpTxn txnp, sockaddr const *addr)

DESCRIPTION

       These functions concern the local IP address and port, that is the address and port on the
       Traffic Server side of outbound connections (network connections from  Traffic  Server  to
       another socket).

       The address and optional the port can be set with TSHttpTxnOutgoingAddrSet(). This must be
       done  before  the   outbound   connection   is   made,   that   is,   earlier   than   the
       TS_HTTP_SEND_REQUEST_HDR_HOOK.   A good choice is the TS_HTTP_POST_REMAP_HOOK, since it is
       a hook that is always called, and it  is  the  latest  hook  that  is  called  before  the
       connection  is  made.  The addr must be populated with the IP address and port to be used.
       If the port is not relevant it can be set to zero, which means  use  any  available  local
       port. This function returns TS_SUCCESS on success and TS_ERROR on failure.

       Even  on  a  successful  call  to TSHttpTxnOutgoingAddrSet(), the local IP address may not
       match what was passing addr if session sharing is enabled.

       Conversely TSHttpTxnOutgoingAddrGet() retrieves the local address and must  be  called  in
       the  TS_HTTP_SEND_REQUEST_HDR_HOOK  or  later,  after  the  outbound  connection  has been
       established. It returns a pointer to a sockaddr which contains the local  IP  address  and
       port. If there is no valid outbound connection, addr will be NULL. The returned pointer is
       a  transient  pointer  and  must  not  be  referenced  after   the   callback   in   which
       TSHttpTxnOutgoingAddrGet() was called.

COPYRIGHT

       2022, dev@trafficserver.apache.org