16e91bba0SGirish Moodalbail /*
26e91bba0SGirish Moodalbail * CDDL HEADER START
36e91bba0SGirish Moodalbail *
46e91bba0SGirish Moodalbail * The contents of this file are subject to the terms of the
56e91bba0SGirish Moodalbail * Common Development and Distribution License (the "License").
66e91bba0SGirish Moodalbail * You may not use this file except in compliance with the License.
76e91bba0SGirish Moodalbail *
86e91bba0SGirish Moodalbail * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
96e91bba0SGirish Moodalbail * or http://www.opensolaris.org/os/licensing.
106e91bba0SGirish Moodalbail * See the License for the specific language governing permissions
116e91bba0SGirish Moodalbail * and limitations under the License.
126e91bba0SGirish Moodalbail *
136e91bba0SGirish Moodalbail * When distributing Covered Code, include this CDDL HEADER in each
146e91bba0SGirish Moodalbail * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
156e91bba0SGirish Moodalbail * If applicable, add the following below this CDDL HEADER, with the
166e91bba0SGirish Moodalbail * fields enclosed by brackets "[]" replaced with your own identifying
176e91bba0SGirish Moodalbail * information: Portions Copyright [yyyy] [name of copyright owner]
186e91bba0SGirish Moodalbail *
196e91bba0SGirish Moodalbail * CDDL HEADER END
206e91bba0SGirish Moodalbail */
216e91bba0SGirish Moodalbail /*
228887b57dSGirish Moodalbail * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved.
237256a34eSDan McDonald * Copyright 2013 Nexenta Systems, Inc. All rights reserved.
24*299625c6SSebastien Roy * Copyright (c) 2013 by Delphix. All rights reserved.
256e91bba0SGirish Moodalbail */
268887b57dSGirish Moodalbail /* Copyright (c) 1990 Mentat Inc. */
276e91bba0SGirish Moodalbail
286e91bba0SGirish Moodalbail #include <inet/ip.h>
296e91bba0SGirish Moodalbail #include <inet/ip6.h>
306e91bba0SGirish Moodalbail #include <inet/udp_impl.h>
316e91bba0SGirish Moodalbail #include <sys/sunddi.h>
326e91bba0SGirish Moodalbail
33*299625c6SSebastien Roy 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)34*299625c6SSebastien Roy udp_set_buf_prop(netstack_t *stack, cred_t *cr, mod_prop_info_t *pinfo,
35*299625c6SSebastien Roy const char *ifname, const void *pval, uint_t flags)
36*299625c6SSebastien Roy {
37*299625c6SSebastien Roy return (mod_set_buf_prop(stack->netstack_udp->us_propinfo_tbl, stack,
38*299625c6SSebastien Roy cr, pinfo, ifname, pval, flags));
39*299625c6SSebastien Roy }
40*299625c6SSebastien Roy
41*299625c6SSebastien Roy 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)42*299625c6SSebastien Roy udp_get_buf_prop(netstack_t *stack, mod_prop_info_t *pinfo, const char *ifname,
43*299625c6SSebastien Roy void *val, uint_t psize, uint_t flags)
44*299625c6SSebastien Roy {
45*299625c6SSebastien Roy return (mod_get_buf_prop(stack->netstack_udp->us_propinfo_tbl, stack,
46*299625c6SSebastien Roy pinfo, ifname, val, psize, flags));
47*299625c6SSebastien Roy }
48*299625c6SSebastien Roy
497256a34eSDan McDonald /*
507256a34eSDan McDonald * Special checkers for smallest/largest anonymous port so they don't
517256a34eSDan McDonald * ever happen to be (largest < smallest).
527256a34eSDan McDonald */
537256a34eSDan McDonald /* ARGSUSED */
547256a34eSDan McDonald 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)55*299625c6SSebastien Roy udp_smallest_anon_set(netstack_t *stack, cred_t *cr, mod_prop_info_t *pinfo,
567256a34eSDan McDonald const char *ifname, const void *pval, uint_t flags)
577256a34eSDan McDonald {
587256a34eSDan McDonald unsigned long new_value;
59*299625c6SSebastien Roy udp_stack_t *us = stack->netstack_udp;
607256a34eSDan McDonald int err;
617256a34eSDan McDonald
627256a34eSDan McDonald if ((err = mod_uint32_value(pval, pinfo, flags, &new_value)) != 0)
637256a34eSDan McDonald return (err);
647256a34eSDan McDonald /* mod_uint32_value() + pinfo guarantees we're in UDP port range. */
657256a34eSDan McDonald if (new_value > us->us_largest_anon_port)
667256a34eSDan McDonald return (ERANGE);
677256a34eSDan McDonald pinfo->prop_cur_uval = (uint32_t)new_value;
687256a34eSDan McDonald return (0);
697256a34eSDan McDonald }
707256a34eSDan McDonald
717256a34eSDan McDonald /* ARGSUSED */
727256a34eSDan McDonald 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)73*299625c6SSebastien Roy udp_largest_anon_set(netstack_t *stack, cred_t *cr, mod_prop_info_t *pinfo,
747256a34eSDan McDonald const char *ifname, const void *pval, uint_t flags)
757256a34eSDan McDonald {
767256a34eSDan McDonald unsigned long new_value;
77*299625c6SSebastien Roy udp_stack_t *us = stack->netstack_udp;
787256a34eSDan McDonald int err;
797256a34eSDan McDonald
807256a34eSDan McDonald if ((err = mod_uint32_value(pval, pinfo, flags, &new_value)) != 0)
817256a34eSDan McDonald return (err);
827256a34eSDan McDonald /* mod_uint32_value() + pinfo guarantees we're in UDP port range. */
837256a34eSDan McDonald if (new_value < us->us_smallest_anon_port)
847256a34eSDan McDonald return (ERANGE);
857256a34eSDan McDonald pinfo->prop_cur_uval = (uint32_t)new_value;
867256a34eSDan McDonald return (0);
877256a34eSDan McDonald }
887256a34eSDan McDonald
896e91bba0SGirish Moodalbail /*
906e91bba0SGirish Moodalbail * All of these are alterable, within the min/max values given, at run time.
916e91bba0SGirish Moodalbail *
928887b57dSGirish Moodalbail * Note: All those tunables which do not start with "_" are Committed and
938887b57dSGirish Moodalbail * therefore are public. See PSARC 2010/080.
946e91bba0SGirish Moodalbail */
956e91bba0SGirish Moodalbail mod_prop_info_t udp_propinfo_tbl[] = {
966e91bba0SGirish Moodalbail /* tunable - 0 */
978887b57dSGirish Moodalbail { "_wroff_extra", MOD_PROTO_UDP,
986e91bba0SGirish Moodalbail mod_set_uint32, mod_get_uint32,
996e91bba0SGirish Moodalbail {0, 256, 32}, {32} },
1006e91bba0SGirish Moodalbail
1018887b57dSGirish Moodalbail { "_ipv4_ttl", MOD_PROTO_UDP,
1026e91bba0SGirish Moodalbail mod_set_uint32, mod_get_uint32,
1036e91bba0SGirish Moodalbail {1, 255, 255}, {255} },
1046e91bba0SGirish Moodalbail
1058887b57dSGirish Moodalbail { "_ipv6_hoplimit", MOD_PROTO_UDP,
1066e91bba0SGirish Moodalbail mod_set_uint32, mod_get_uint32,
1076e91bba0SGirish Moodalbail {0, IPV6_MAX_HOPS, IPV6_DEFAULT_HOPS}, {IPV6_DEFAULT_HOPS} },
1086e91bba0SGirish Moodalbail
1096e91bba0SGirish Moodalbail { "smallest_nonpriv_port", MOD_PROTO_UDP,
1106e91bba0SGirish Moodalbail mod_set_uint32, mod_get_uint32,
1116e91bba0SGirish Moodalbail {1024, (32 * 1024), 1024}, {1024} },
1126e91bba0SGirish Moodalbail
1138887b57dSGirish Moodalbail { "_do_checksum", MOD_PROTO_UDP,
1146e91bba0SGirish Moodalbail mod_set_boolean, mod_get_boolean,
1156e91bba0SGirish Moodalbail {B_TRUE}, {B_TRUE} },
1166e91bba0SGirish Moodalbail
1176e91bba0SGirish Moodalbail { "smallest_anon_port", MOD_PROTO_UDP,
1187256a34eSDan McDonald udp_smallest_anon_set, mod_get_uint32,
1196e91bba0SGirish Moodalbail {1024, ULP_MAX_PORT, (32 * 1024)}, {(32 * 1024)} },
1206e91bba0SGirish Moodalbail
1216e91bba0SGirish Moodalbail { "largest_anon_port", MOD_PROTO_UDP,
1227256a34eSDan McDonald udp_largest_anon_set, mod_get_uint32,
1236e91bba0SGirish Moodalbail {1024, ULP_MAX_PORT, ULP_MAX_PORT}, {ULP_MAX_PORT} },
1246e91bba0SGirish Moodalbail
125*299625c6SSebastien Roy { "send_buf", MOD_PROTO_UDP,
126*299625c6SSebastien Roy udp_set_buf_prop, udp_get_buf_prop,
127*299625c6SSebastien Roy {UDP_XMIT_LOWATER, ULP_MAX_BUF, UDP_XMIT_HIWATER},
1286e91bba0SGirish Moodalbail {UDP_XMIT_HIWATER} },
1296e91bba0SGirish Moodalbail
1308887b57dSGirish Moodalbail { "_xmit_lowat", MOD_PROTO_UDP,
1316e91bba0SGirish Moodalbail mod_set_uint32, mod_get_uint32,
132*299625c6SSebastien Roy {0, ULP_MAX_BUF, UDP_XMIT_LOWATER},
1336e91bba0SGirish Moodalbail {UDP_XMIT_LOWATER} },
1346e91bba0SGirish Moodalbail
135*299625c6SSebastien Roy { "recv_buf", MOD_PROTO_UDP,
136*299625c6SSebastien Roy udp_set_buf_prop, udp_get_buf_prop,
137*299625c6SSebastien Roy {UDP_RECV_LOWATER, ULP_MAX_BUF, UDP_RECV_HIWATER},
1386e91bba0SGirish Moodalbail {UDP_RECV_HIWATER} },
1396e91bba0SGirish Moodalbail
1406e91bba0SGirish Moodalbail /* tunable - 10 */
141*299625c6SSebastien Roy { "max_buf", MOD_PROTO_UDP,
1426e91bba0SGirish Moodalbail mod_set_uint32, mod_get_uint32,
143*299625c6SSebastien Roy {65536, ULP_MAX_BUF, 2*1024*1024}, {2*1024*1024} },
1446e91bba0SGirish Moodalbail
1458887b57dSGirish Moodalbail { "_pmtu_discovery", MOD_PROTO_UDP,
1466e91bba0SGirish Moodalbail mod_set_boolean, mod_get_boolean,
1476e91bba0SGirish Moodalbail {B_FALSE}, {B_FALSE} },
1486e91bba0SGirish Moodalbail
1498887b57dSGirish Moodalbail { "_sendto_ignerr", MOD_PROTO_UDP,
1506e91bba0SGirish Moodalbail mod_set_boolean, mod_get_boolean,
1516e91bba0SGirish Moodalbail {B_FALSE}, {B_FALSE} },
1526e91bba0SGirish Moodalbail
1536e91bba0SGirish Moodalbail { "extra_priv_ports", MOD_PROTO_UDP,
1546e91bba0SGirish Moodalbail mod_set_extra_privports, mod_get_extra_privports,
1556e91bba0SGirish Moodalbail {1, ULP_MAX_PORT, 0}, {0} },
1566e91bba0SGirish Moodalbail
1576e91bba0SGirish Moodalbail { "?", MOD_PROTO_UDP, NULL, mod_get_allprop, {0}, {0} },
1586e91bba0SGirish Moodalbail
1596e91bba0SGirish Moodalbail { NULL, 0, NULL, NULL, {0}, {0} }
1606e91bba0SGirish Moodalbail };
1616e91bba0SGirish Moodalbail
1626e91bba0SGirish Moodalbail int udp_propinfo_count = A_CNT(udp_propinfo_tbl);
163