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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2013 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2013 by Delphix. All rights reserved.
*/
/* Copyright (c) 1990 Mentat Inc. */
#include <inet/ip.h>
#include <inet/ip6.h>
#include <inet/udp_impl.h>
#include <sys/sunddi.h>
static int
udp_set_buf_prop(netstack_t *stack, cred_t *cr, mod_prop_info_t *pinfo,
const char *ifname, const void *pval, uint_t flags)
{
return (mod_set_buf_prop(stack->netstack_udp->us_propinfo_tbl, stack,
cr, pinfo, ifname, pval, flags));
}
static int
udp_get_buf_prop(netstack_t *stack, mod_prop_info_t *pinfo, const char *ifname,
void *val, uint_t psize, uint_t flags)
{
return (mod_get_buf_prop(stack->netstack_udp->us_propinfo_tbl, stack,
pinfo, ifname, val, psize, flags));
}
/*
* Special checkers for smallest/largest anonymous port so they don't
* ever happen to be (largest < smallest).
*/
/* ARGSUSED */
static int
udp_smallest_anon_set(netstack_t *stack, cred_t *cr, mod_prop_info_t *pinfo,
const char *ifname, const void *pval, uint_t flags)
{
unsigned long new_value;
udp_stack_t *us = stack->netstack_udp;
int err;
if ((err = mod_uint32_value(pval, pinfo, flags, &new_value)) != 0)
return (err);
/* mod_uint32_value() + pinfo guarantees we're in UDP port range. */
if (new_value > us->us_largest_anon_port)
return (ERANGE);
pinfo->prop_cur_uval = (uint32_t)new_value;
return (0);
}
/* ARGSUSED */
static int
udp_largest_anon_set(netstack_t *stack, cred_t *cr, mod_prop_info_t *pinfo,
const char *ifname, const void *pval, uint_t flags)
{
unsigned long new_value;
udp_stack_t *us = stack->netstack_udp;
int err;
if ((err = mod_uint32_value(pval, pinfo, flags, &new_value)) != 0)
return (err);
/* mod_uint32_value() + pinfo guarantees we're in UDP port range. */
if (new_value < us->us_smallest_anon_port)
return (ERANGE);
pinfo->prop_cur_uval = (uint32_t)new_value;
return (0);
}
/*
* All of these are alterable, within the min/max values given, at run time.
*
* Note: All those tunables which do not start with "_" are Committed and
* therefore are public. See PSARC 2010/080.
*/
mod_prop_info_t udp_propinfo_tbl[] = {
/* tunable - 0 */
{ "_wroff_extra", MOD_PROTO_UDP,
mod_set_uint32, mod_get_uint32,
{0, 256, 32}, {32} },
{ "_ipv4_ttl", MOD_PROTO_UDP,
mod_set_uint32, mod_get_uint32,
{1, 255, 255}, {255} },
{ "_ipv6_hoplimit", MOD_PROTO_UDP,
mod_set_uint32, mod_get_uint32,
{0, IPV6_MAX_HOPS, IPV6_DEFAULT_HOPS}, {IPV6_DEFAULT_HOPS} },
{ "smallest_nonpriv_port", MOD_PROTO_UDP,
mod_set_uint32, mod_get_uint32,
{1024, (32 * 1024), 1024}, {1024} },
{ "_do_checksum", MOD_PROTO_UDP,
mod_set_boolean, mod_get_boolean,
{B_TRUE}, {B_TRUE} },
{ "smallest_anon_port", MOD_PROTO_UDP,
udp_smallest_anon_set, mod_get_uint32,
{1024, ULP_MAX_PORT, (32 * 1024)}, {(32 * 1024)} },
{ "largest_anon_port", MOD_PROTO_UDP,
udp_largest_anon_set, mod_get_uint32,
{1024, ULP_MAX_PORT, ULP_MAX_PORT}, {ULP_MAX_PORT} },
{ "send_buf", MOD_PROTO_UDP,
udp_set_buf_prop, udp_get_buf_prop,
{UDP_XMIT_LOWATER, ULP_MAX_BUF, UDP_XMIT_HIWATER},
{UDP_XMIT_HIWATER} },
{ "_xmit_lowat", MOD_PROTO_UDP,
mod_set_uint32, mod_get_uint32,
{0, ULP_MAX_BUF, UDP_XMIT_LOWATER},
{UDP_XMIT_LOWATER} },
{ "recv_buf", MOD_PROTO_UDP,
udp_set_buf_prop, udp_get_buf_prop,
{UDP_RECV_LOWATER, ULP_MAX_BUF, UDP_RECV_HIWATER},
{UDP_RECV_HIWATER} },
/* tunable - 10 */
{ "max_buf", MOD_PROTO_UDP,
mod_set_uint32, mod_get_uint32,
{65536, ULP_MAX_BUF, 2*1024*1024}, {2*1024*1024} },
{ "_pmtu_discovery", MOD_PROTO_UDP,
mod_set_boolean, mod_get_boolean,
{B_FALSE}, {B_FALSE} },
{ "_sendto_ignerr", MOD_PROTO_UDP,
mod_set_boolean, mod_get_boolean,
{B_FALSE}, {B_FALSE} },
{ "extra_priv_ports", MOD_PROTO_UDP,
mod_set_extra_privports, mod_get_extra_privports,
{1, ULP_MAX_PORT, 0}, {0} },
{ "?", MOD_PROTO_UDP, NULL, mod_get_allprop, {0}, {0} },
{ NULL, 0, NULL, NULL, {0}, {0} }
};
int udp_propinfo_count = A_CNT(udp_propinfo_tbl);
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