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rapi_sender(3)

NAME

rapi_sender - Specify Resource ReSerVation Protocol (RSVP) API sender parameters

SYNOPSIS

#include <rapi.h> int rapi_sender( rapi_sid_t Sid, unsigned int flags, rapi_addr_t *Lhost, rapi_filter_t *SenderTemplate, rapi_tspec_t *SenderTspec, rapi_adspec_t *SenderAdspec, rapi_policy_t *SenderPolicy, int TTL );

LIBRARY

RAPI Library (librsvp.so, librsvp.a)

PARAMETERS

Sid Specifies the session handle that was returned by a successful call to the rapi_session() routine. flags Unused. Lhost Points to a rapi_addr_t structure that contains the source IP address and the UDP source port from which data will be sent, or is NULL. This is an optional parameter. If the source IP address is INADDR_ANY, the API uses the default IP address of the local host. This is sufficient unless the host is multi-homed. The port number might be zero if the protocol for the session does not have any ports. If the Lhost parameter is NULL, the application indicates that it is withdrawing its registration as a sender. All the following parameters are ignored. SenderTemplate Points to a RSVP API (RAPI) filter specification structure that specifies the format of data packets to be sent, or is NULL. This is an optional parameter. See RSVP(7) for a description of RAPI objects and formats. If the SenderTemplate parameter is NULL, RAPI creates a sender template from the Dest and Lhost parameters. The Dest parameter was supplied in a previous rapi_session() call. If parameter is not NULL, the Lhost parameter is ignored. This parameter is required in order to declare the sender template for a session using IP Security (IPSec). An IPSec session is created with the RAPI_GPI_SESSION bit set. SenderTspec Points to a Tspec that defines the traffic that this sender will create. SenderAdspec Points to a RAPI Adspec structure, or is NULL. See RSVP(7) for a description of RAPI objects and formats. SenderPolicy Points to a sender policy structure, or is NULL. TTL Specifies the IP Time-to-Live (TTL) value with which multicast data is sent. This allows RSVP to send its control messages with the same TTL scope as the data packets.

DESCRIPTION

The rapi_sender() routine defines, redefines, or deletes the parameters for a flow of data it intends to send and for which receivers can make reservations. An application can call this routine more than once for the same API session, with the most recent call taking precedence. If the call to rapi_sender() succeeds, the application might receive upcalls of type RAPI_RESV_EVENT or RAPI_PATH_ERROR.

RETURN VALUES

Upon successful completion, the rapi_sender() routine returns zero (0). If there is a synchronous error, the routine returns a RAPI error code.

SEE ALSO

Functions: rapi_dispatch(3), rapi_event_rtn_t(3), rapi_getfd(3), rapi_release(3), rapi_reserve(3), rapi_session(3), rapi_strerror(3), rapi_version(3). Network: RSVP(7). Network Programmer's Guide

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