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

       2024, dev@trafficserver.apache.org

9.2                                               Apr 01, 2024                       LOCAL OUTBOUND ADDRESS(3ts)