?? lsr_add.c
字號:
/* lsr_add.c - lsr_add */
#include <conf.h>
#include <kernel.h>
#include <network.h>
#include <ospf.h>
struct ep *ospflsrtmpl(struct ospf_if *);
/*------------------------------------------------------------------------
* lsr_add - add a link state summary to a link state request packet
*------------------------------------------------------------------------
*/
struct ep *
lsr_add(struct ospf_if *pif, struct ospf_lss *plss, struct ep *pep)
{
struct ip *pip;
struct ospf *po;
struct ospf_lsr *plsr;
if (pep == 0) {
pep = ospflsrtmpl(pif);
if (pep == 0)
return 0;
}
pip = (struct ip *)pep->ep_data;
po = (struct ospf *)pip->ip_data;
plsr = (struct ospf_lsr *)((char *)po + po->ospf_len);
plsr->lsr_type = net2hl((unsigned long)plss->lss_type);
plsr->lsr_lsid = plss->lss_lsid;
plsr->lsr_rid = plss->lss_rid;
po->ospf_len += LSRLEN;
return pep;
}
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