void ospf_adjust_sndbuflen_oisock (struct ospf * ospf, int buflen,struct ospf_interface *oi)
{
int ret, newbuflen;
/* Check if any work has to be done at all. */
if (ospf->maxsndbuflen >= buflen)
{
return;
}
if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
{
zlog_debug ("%s: adjusting OSPF send buffer size to %d",
__func__, buflen);
}
ret = setsockopt_so_sendbuf (oi->packet_fd, buflen);
newbuflen = getsockopt_so_sendbuf (oi->packet_fd);
if (ret < 0 || newbuflen < buflen)
{
zlog_warn ("%s: tried to set SO_SNDBUF to %d, but got %d",
__func__, buflen, newbuflen);
}
if (newbuflen >= 0)
{
ospf->maxsndbuflen = newbuflen;
}
else
{
zlog_warn ("%s: failed to get SO_SNDBUF", __func__);
}
}
void
ospf_adjust_sndbuflen (struct ospf * ospf, int buflen)
{
int ret, newbuflen;
/* Check if any work has to be done at all. */
if (ospf->maxsndbuflen >= buflen)
return;
if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
zlog_debug ("%s: adjusting OSPF send buffer size to %d",
__func__, buflen);
if (ospfd_privs.change (ZPRIVS_RAISE))
zlog_err ("%s: could not raise privs, %s", __func__,
safe_strerror (errno));
/* Now we try to set SO_SNDBUF to what our caller has requested
* (the MTU of a newly added interface). However, if the OS has
* truncated the actual buffer size to somewhat less size, try
* to detect it and update our records appropriately. The OS
* may allocate more buffer space, than requested, this isn't
* a error.
*/
ret = setsockopt_so_sendbuf (ospf->fd, buflen);
newbuflen = getsockopt_so_sendbuf (ospf->fd);
if (ret < 0 || newbuflen < buflen)
zlog_warn ("%s: tried to set SO_SNDBUF to %d, but got %d",
__func__, buflen, newbuflen);
if (newbuflen >= 0)
ospf->maxsndbuflen = newbuflen;
else
zlog_warn ("%s: failed to get SO_SNDBUF", __func__);
if (ospfd_privs.change (ZPRIVS_LOWER))
zlog_err ("%s: could not lower privs, %s", __func__,
safe_strerror (errno));
}
