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Set the RCVBUF and SNDBUF sizes to the maximum possible amount to

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handle traffic under duress.

Signed-off-by: Dinesh G Dutt <ddutt@cumulusnetworks.com>
Reviewed-by: Ayan Banerjee <ayan@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2015-05-19 17:24:42 -07:00
parent d06ccd4768
commit a78d75b04c
1 changed files with 36 additions and 0 deletions
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36
ospfd/ospf_network.c
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@ -165,6 +165,9 @@ ospf_sock_init (void)
{
int ospf_sock;
int ret, hincl = 1;
int bufsize = (8 * 1024 * 1024);
int optval;
socklen_t optlen = sizeof(optval);
if ( ospfd_privs.change (ZPRIVS_RAISE) )
zlog_err ("ospf_sock_init: could not raise privs, %s",
@ -223,6 +226,39 @@ ospf_sock_init (void)
zlog_err ("ospf_sock_init: could not lower privs, %s",
safe_strerror (errno) );
}
if ((ret = setsockopt (ospf_sock, SOL_SOCKET, SO_RCVBUF,
&bufsize, sizeof (bufsize))) < 0)
{
zlog_err ("Couldn't increase raw rbuf size: %s\n", safe_strerror(errno));
}
if ((ret = getsockopt (ospf_sock, SOL_SOCKET, SO_RCVBUF,
&optval, &optlen)) < 0)
{
zlog_err("getsockopt of SO_RCVBUF failed with error %s\n", safe_strerror(errno));
}
if (optval < bufsize)
{
zlog_err("Unable to SO_RCVBUF to %d, set to %d\n", bufsize, optval);
}
if ((ret = setsockopt (ospf_sock, SOL_SOCKET, SO_SNDBUF,
&bufsize, sizeof (bufsize))) < 0)
{
zlog_err ("Couldn't increase raw wbuf size: %s\n", safe_strerror(errno));
}
if ((ret = getsockopt (ospf_sock, SOL_SOCKET, SO_SNDBUF,
&optval, &optlen)) < 0)
{
zlog_err ("getsockopt of SO_SNDBUF failed with error %s\n", safe_strerror(errno));
}
if (optval < bufsize)
{
zlog_err ("Unable to SO_SNDBUF to %d, set to %d\n", bufsize, optval);
}
return ospf_sock;
}