xprt_lookup_rqst(9) [centos man page]

XPRT_LOOKUP_RQST(9)						 Linux Networking					       XPRT_LOOKUP_RQST(9)

NAME

       xprt_lookup_rqst - find an RPC request corresponding to an XID

SYNOPSIS

       struct rpc_rqst * xprt_lookup_rqst(struct rpc_xprt * xprt, __be32 xid);

ARGUMENTS

       xprt
	   transport on which the original request was transmitted

       xid
	   RPC XID of incoming reply

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						       XPRT_LOOKUP_RQST(9)

RPC_SVC_REG(3)						   BSD Library Functions Manual 					    RPC_SVC_REG(3)

NAME

     rpc_svc_reg, rpc_reg, svc_reg, svc_unreg, svc_auth_reg, xprt_register, xprt_unregister -- library routines for registering servers

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <rpc/rpc.h>

     int
     rpc_reg(rpcprog_t prognum, rpcvers_t versnum, rpcproc_t procnum, char *(*procname)(), xdrproc_t inproc, xdrproc_t outproc, char *nettype);

     bool_t
     svc_reg(SVCXPRT *xprt, const rpcprog_t prognum, const rpcvers_t versnum, void (*dispatch)(struct svc_req *, SVCXPRT *),
	 const struct netconfig *netconf);

     void
     svc_unreg(const rpcprog_t prognum, const rpcvers_t versnum);

     int
     svc_auth_reg(int cred_flavor, enum auth_stat (*handler)(struct svc_req *, struct rpc_msg *));

     void
     xprt_register(SVCXPRT *xprt);

     void
     xprt_unregister(SVCXPRT *xprt);

DESCRIPTION

     These routines are a part of the RPC library which allows the RPC servers to register themselves with rpcbind (see rpcbind(8)), and associate
     the given program and version number with the dispatch function.  When the RPC server receives a RPC request, the library invokes the dis-
     patch routine with the appropriate arguments.

Routines
     See rpc(3) for the definition of the SVCXPRT data structure.

     rpc_reg()
	    Register program prognum, procedure procname, and version versnum with the RPC service package.  If a request arrives for program
	    prognum, version versnum, and procedure procnum, procname is called with a pointer to its argument(s); procname should return a
	    pointer to its static result(s); inproc is the XDR function used to decode the arguments while outproc is the XDR function used to
	    encode the results.  Procedures are registered on all available transports of the class nettype.  See rpc(3).  This routine returns 0
	    if the registration succeeded, -1 otherwise.

     svc_reg()
	    Associates prognum and versnum with the service dispatch procedure, dispatch.  If netconf is NULL, the service is not registered with
	    the rpcbind(8) service.  If netconf is non-zero, then a mapping of the triple [prognum, versnum, netconf->nc_netid] to xprt->xp_ltaddr
	    is established with the local rpcbind service.

	    The svc_reg() routine returns 1 if it succeeds, and 0 otherwise.

     svc_unreg()
	    Remove from the rpcbind service, all mappings of the triple [prognum, versnum, all-transports] to network address and all mappings
	    within the RPC service package of the double [prognum, versnum] to dispatch routines.

     svc_auth_reg()
	    Registers the service authentication routine handler with the dispatch mechanism so that it can be invoked to authenticate RPC
	    requests received with authentication type cred_flavor.  This interface allows developers to add new authentication types to their RPC
	    applications without needing to modify the libraries.  Service implementors usually do not need this routine.

	    Typical service application would call svc_auth_reg() after registering the service and prior to calling svc_run().  When needed to
	    process an RPC credential of type cred_flavor, the handler procedure will be called with two arguments, struct svc_req *rqst and
	    struct rpc_msg *msg, and is expected to return a valid enum auth_stat value.  There is no provision to change or delete an authentica-
	    tion handler once registered.

	    The svc_auth_reg() routine returns 0 if the registration is successful, 1 if cred_flavor already has an authentication handler regis-
	    tered for it, and -1 otherwise.

     xprt_register()
	    After RPC service transport handle xprt is created, it is registered with the RPC service package.	This routine modifies the global
	    variable svc_fdset (see rpc_svc_calls(3)).	Service implementors usually do not need this routine.

     xprt_unregister()
	    Before an RPC service transport handle xprt is destroyed, it unregisters itself with the RPC service package.  This routine modifies
	    the global variable svc_fdset (see rpc_svc_calls(3)).  Service implementors usually do not need this routine.

SEE ALSO

     select(2), rpc(3), rpc_svc_calls(3), rpc_svc_create(3), rpc_svc_err(3), rpcbind(3), rpcbind(8)

BSD
								    May 3, 1993 							       BSD