/* * 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 (c) 1990 Mentat Inc. */ #include #include #include #include #include #include #include #include #include /* How long, in seconds, we allow frags to hang around. */ #define IP_REASM_TIMEOUT 15 #define IPV6_REASM_TIMEOUT 60 /* * Set ip{,6}_forwarding values. If the value is being set on an ill, * find the ill and set the value on it. On the other hand if we are modifying * global property, modify the global value and set the value on all the ills. */ /* ARGSUSED */ static int ip_set_forwarding(void *cbarg, cred_t *cr, mod_prop_info_t *pinfo, const char *ifname, const void* pval, uint_t flags) { char *end; unsigned long new_value; boolean_t per_ill, isv6; ill_walk_context_t ctx; ill_t *ill; ip_stack_t *ipst = (ip_stack_t *)cbarg; if (flags & MOD_PROP_DEFAULT) { new_value = pinfo->prop_def_bval; } else { if (ddi_strtoul(pval, &end, 10, &new_value) != 0 || *end != '\0') return (EINVAL); if (new_value != B_TRUE && new_value != B_FALSE) return (EINVAL); } per_ill = (ifname != NULL && ifname[0] != '\0'); /* * if it's not per ill then set the global property and bring all the * ills up to date with the new global value. */ if (!per_ill) pinfo->prop_cur_bval = (new_value == 1 ? B_TRUE : B_FALSE); isv6 = (pinfo->mpi_proto == MOD_PROTO_IPV6 ? B_TRUE : B_FALSE); rw_enter(&ipst->ips_ill_g_lock, RW_READER); if (isv6) ill = ILL_START_WALK_V6(&ctx, ipst); else ill = ILL_START_WALK_V4(&ctx, ipst); for (; ill != NULL; ill = ill_next(&ctx, ill)) { /* * if the property needs to be set on a particular * interface, look for that interface. */ if (per_ill && strcmp(ifname, ill->ill_name) != 0) continue; (void) ill_forward_set(ill, new_value != 0); } rw_exit(&ipst->ips_ill_g_lock); return (0); } static int ip_get_forwarding(void *cbarg, mod_prop_info_t *pinfo, const char *ifname, void *pval, uint_t pr_size, uint_t flags) { boolean_t value; ill_walk_context_t ctx; ill_t *ill; ip_stack_t *ipst = (ip_stack_t *)cbarg; boolean_t get_def = (flags & MOD_PROP_DEFAULT); boolean_t get_perm = (flags & MOD_PROP_PERM); boolean_t isv6; size_t nbytes = 0; if (get_perm) { nbytes = snprintf(pval, pr_size, "%d", MOD_PROP_PERM_RW); goto ret; } else if (get_def) { nbytes = snprintf(pval, pr_size, "%d", pinfo->prop_def_bval); goto ret; } /* * if per interface value is not asked for return the current * global value */ if (ifname == NULL || ifname[0] == '\0') { nbytes = snprintf(pval, pr_size, "%d", pinfo->prop_cur_bval); goto ret; } isv6 = (pinfo->mpi_proto == MOD_PROTO_IPV6 ? B_TRUE : B_FALSE); rw_enter(&ipst->ips_ill_g_lock, RW_READER); if (isv6) ill = ILL_START_WALK_V6(&ctx, ipst); else ill = ILL_START_WALK_V4(&ctx, ipst); for (; ill != NULL; ill = ill_next(&ctx, ill)) { /* * if the property needs to be obtained on a particular * interface, look for that interface. */ if (strcmp(ifname, ill->ill_name) == 0) break; } if (ill == NULL) { rw_exit(&ipst->ips_ill_g_lock); return (ENXIO); } value = ((ill->ill_flags & ILLF_ROUTER) ? B_TRUE : B_FALSE); rw_exit(&ipst->ips_ill_g_lock); nbytes = snprintf(pval, pr_size, "%d", value); ret: if (nbytes >= pr_size) return (ENOBUFS); return (0); } /* * `ip_debug' is a global variable. So, we will be modifying the global * variable here. */ /* ARGSUSED */ int ip_set_debug(void *cbarg, cred_t *cr, mod_prop_info_t *pinfo, const char *ifname, const void* pval, uint_t flags) { unsigned long new_value; int err; if (cr != NULL && secpolicy_net_config(cr, B_FALSE) != 0) return (EPERM); if ((err = mod_uint32_value(pval, pinfo, flags, &new_value)) != 0) return (err); ip_debug = (uint32_t)new_value; return (0); } /* * ip_debug is a global property. For default, permission and value range * we retrieve the value from `pinfo'. However for the current value we * retrieve the value from the global variable `ip_debug' */ /* ARGSUSED */ int ip_get_debug(void *cbarg, mod_prop_info_t *pinfo, const char *ifname, void *pval, uint_t psize, uint_t flags) { boolean_t get_def = (flags & MOD_PROP_DEFAULT); boolean_t get_perm = (flags & MOD_PROP_PERM); boolean_t get_range = (flags & MOD_PROP_POSSIBLE); size_t nbytes; bzero(pval, psize); if (get_perm) nbytes = snprintf(pval, psize, "%u", MOD_PROP_PERM_RW); else if (get_range) nbytes = snprintf(pval, psize, "%u-%u", pinfo->prop_min_uval, pinfo->prop_max_uval); else if (get_def) nbytes = snprintf(pval, psize, "%u", pinfo->prop_def_uval); else nbytes = snprintf(pval, psize, "%u", ip_debug); if (nbytes >= psize) return (ENOBUFS); return (0); } /* * Set the CGTP (multirouting) filtering status. If the status is changed * from active to transparent or from transparent to active, forward the * new status to the filtering module (if loaded). */ /* ARGSUSED */ static int ip_set_cgtp_filter(void *cbarg, cred_t *cr, mod_prop_info_t *pinfo, const char *ifname, const void* pval, uint_t flags) { unsigned long new_value; ip_stack_t *ipst = (ip_stack_t *)cbarg; char *end; if (flags & MOD_PROP_DEFAULT) { new_value = pinfo->prop_def_bval; } else { if (ddi_strtoul(pval, &end, 10, &new_value) != 0 || *end != '\0' || new_value > 1) { return (EINVAL); } } if (!pinfo->prop_cur_bval && new_value) { cmn_err(CE_NOTE, "IP: enabling CGTP filtering%s", ipst->ips_ip_cgtp_filter_ops == NULL ? " (module not loaded)" : ""); } if (pinfo->prop_cur_bval && !new_value) { cmn_err(CE_NOTE, "IP: disabling CGTP filtering%s", ipst->ips_ip_cgtp_filter_ops == NULL ? " (module not loaded)" : ""); } if (ipst->ips_ip_cgtp_filter_ops != NULL) { int res; netstackid_t stackid = ipst->ips_netstack->netstack_stackid; res = ipst->ips_ip_cgtp_filter_ops->cfo_change_state(stackid, new_value); if (res) return (res); } pinfo->prop_cur_bval = (new_value == 1 ? B_TRUE : B_FALSE); ill_set_inputfn_all(ipst); return (0); } /* * Retrieve the default MTU or min-max MTU range for a given interface. * * -- ill_max_frag value tells us the maximum MTU that can be handled by the * datalink. This value is advertised by the driver via DLPI messages * (DL_NOTE_SDU_SIZE/DL_INFO_ACK). * * -- ill_current_frag for the most link-types will be same as ill_max_frag * to begin with. However it is dynamically computed for some link-types * like tunnels, based on the tunnel PMTU. * * -- ill_mtu is the user set MTU using SIOCSLIFMTU and must lie between * (IPV6_MIN_MTU/IP_MIN_MTU) and ill_max_frag. * * -- ill_user_mtu is set by in.ndpd using SIOCSLIFLNKINFO and must lie between * (IPV6_MIN_MTU/IP_MIN_MTU) and ill_max_frag. */ int ip_get_mtu(void *cbarg, mod_prop_info_t *pinfo, const char *ifname, void *pval, uint_t psize, uint_t flags) { ill_walk_context_t ctx; ill_t *ill; ip_stack_t *ipst = (ip_stack_t *)cbarg; boolean_t isv6; uint32_t max_mtu, def_mtu; size_t nbytes = 0; if (!(flags & (MOD_PROP_DEFAULT|MOD_PROP_POSSIBLE))) return (ENOTSUP); if (ifname == NULL || ifname[0] == '\0') return (ENOTSUP); isv6 = (pinfo->mpi_proto == MOD_PROTO_IPV6 ? B_TRUE : B_FALSE); rw_enter(&ipst->ips_ill_g_lock, RW_READER); if (isv6) ill = ILL_START_WALK_V6(&ctx, ipst); else ill = ILL_START_WALK_V4(&ctx, ipst); for (; ill != NULL; ill = ill_next(&ctx, ill)) { if (strcmp(ifname, ill->ill_name) == 0) break; } if (ill == NULL) { rw_exit(&ipst->ips_ill_g_lock); return (ENXIO); } max_mtu = ill->ill_max_frag; def_mtu = ill->ill_current_frag; rw_exit(&ipst->ips_ill_g_lock); if (flags & MOD_PROP_DEFAULT) { nbytes = snprintf(pval, psize, "%u", def_mtu); } else if (flags & MOD_PROP_POSSIBLE) { uint32_t min_mtu; min_mtu = isv6 ? IPV6_MIN_MTU : IP_MIN_MTU; nbytes = snprintf(pval, psize, "%u-%u", min_mtu, max_mtu); } else { return (ENOTSUP); } if (nbytes >= psize) return (ENOBUFS); return (0); } /* * See the comments for ip[6]_strict_src_multihoming for an explanation * of the semanitcs. */ void ip_set_src_multihoming_common(ulong_t new_value, ulong_t old_value, boolean_t isv6, ip_stack_t *ipst) { if (isv6) ipst->ips_ipv6_strict_src_multihoming = new_value; else ipst->ips_ip_strict_src_multihoming = new_value; if (new_value != old_value) { if (!isv6) { if (old_value == 0) { ire_walk_v4(ip_ire_rebind_walker, NULL, ALL_ZONES, ipst); } else if (new_value == 0) { ire_walk_v4(ip_ire_unbind_walker, NULL, ALL_ZONES, ipst); } ipcl_walk(conn_ire_revalidate, (void *)B_FALSE, ipst); } else { if (old_value == 0) { ire_walk_v6(ip_ire_rebind_walker, NULL, ALL_ZONES, ipst); } else if (new_value == 0) { ire_walk_v6(ip_ire_unbind_walker, NULL, ALL_ZONES, ipst); } ipcl_walk(conn_ire_revalidate, (void *)B_TRUE, ipst); } } } /* ARGSUSED */ static int ip_set_src_multihoming(void *cbarg, cred_t *cr, mod_prop_info_t *pinfo, const char *ifname, const void* pval, uint_t flags) { unsigned long new_value, old_value; boolean_t isv6; ip_stack_t *ipst = (ip_stack_t *)cbarg; int err; old_value = pinfo->prop_cur_uval; if ((err = mod_uint32_value(pval, pinfo, flags, &new_value)) != 0) return (err); pinfo->prop_cur_uval = new_value; isv6 = (strcmp(pinfo->mpi_name, "ip6_strict_src_multihoming") == 0); ip_set_src_multihoming_common(new_value, old_value, isv6, ipst); return (0); } /* ARGSUSED */ static int ip_set_hostmodel(void *cbarg, cred_t *cr, mod_prop_info_t *pinfo, const char *ifname, const void* pval, uint_t flags) { ip_hostmodel_t new_value, old_value; ip_stack_t *ipst = (ip_stack_t *)cbarg; uint32_t old_src_multihoming; int err; ulong_t tmp; boolean_t isv6; old_value = pinfo->prop_cur_uval; if ((err = mod_uint32_value(pval, pinfo, flags, &tmp)) != 0) return (err); new_value = tmp; pinfo->prop_cur_uval = new_value; switch (old_value) { case IP_WEAK_ES: old_src_multihoming = 0; break; case IP_SRC_PRI_ES: old_src_multihoming = 1; break; case IP_STRONG_ES: old_src_multihoming = 2; break; default: ASSERT(0); old_src_multihoming = IP_MAXVAL_ES; break; } /* * Changes to src_multihoming may require ire's to be rebound/unbound, * and also require generation number resets. Changes to dst_multihoming * require a simple reset of the value. */ isv6 = (pinfo->mpi_proto == MOD_PROTO_IPV6); if (new_value != old_value) { switch (new_value) { case IP_WEAK_ES: ip_set_src_multihoming_common(0, old_src_multihoming, isv6, ipst); if (isv6) ipst->ips_ipv6_strict_dst_multihoming = 0; else ipst->ips_ip_strict_dst_multihoming = 0; break; case IP_SRC_PRI_ES: ip_set_src_multihoming_common(1, old_src_multihoming, isv6, ipst); if (isv6) ipst->ips_ipv6_strict_dst_multihoming = 0; else ipst->ips_ip_strict_dst_multihoming = 0; break; case IP_STRONG_ES: ip_set_src_multihoming_common(2, old_src_multihoming, isv6, ipst); if (isv6) ipst->ips_ipv6_strict_dst_multihoming = 1; else ipst->ips_ip_strict_dst_multihoming = 1; break; default: return (EINVAL); } } return (0); } /* ARGSUSED */ int ip_get_hostmodel(void *cbarg, mod_prop_info_t *pinfo, const char *ifname, void *pval, uint_t psize, uint_t flags) { boolean_t isv6 = (pinfo->mpi_proto == MOD_PROTO_IPV6); ip_stack_t *ipst = cbarg; ip_hostmodel_t hostmodel; if (psize < sizeof (hostmodel)) return (ENOBUFS); bzero(pval, psize); if (!isv6) { if (ipst->ips_ip_strict_src_multihoming == 0 && ipst->ips_ip_strict_dst_multihoming == 0) hostmodel = IP_WEAK_ES; else if (ipst->ips_ip_strict_src_multihoming == 1 && ipst->ips_ip_strict_dst_multihoming == 0) hostmodel = IP_SRC_PRI_ES; else if (ipst->ips_ip_strict_src_multihoming == 2 && ipst->ips_ip_strict_dst_multihoming == 1) hostmodel = IP_STRONG_ES; else hostmodel = IP_MAXVAL_ES; } else { if (ipst->ips_ipv6_strict_src_multihoming == 0 && ipst->ips_ipv6_strict_dst_multihoming == 0) hostmodel = IP_WEAK_ES; else if (ipst->ips_ipv6_strict_src_multihoming == 1 && ipst->ips_ipv6_strict_dst_multihoming == 0) hostmodel = IP_SRC_PRI_ES; else if (ipst->ips_ipv6_strict_src_multihoming == 2 && ipst->ips_ipv6_strict_dst_multihoming == 1) hostmodel = IP_STRONG_ES; else hostmodel = IP_MAXVAL_ES; } bcopy(&hostmodel, pval, sizeof (hostmodel)); 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 ip_propinfo_tbl[] = { /* tunable - 0 */ { "_respond_to_address_mask_broadcast", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, { "_respond_to_echo_broadcast", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_respond_to_echo_multicast", MOD_PROTO_IPV4, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_respond_to_timestamp", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, { "_respond_to_timestamp_broadcast", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, { "_send_redirects", MOD_PROTO_IPV4, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_forward_directed_broadcasts", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, { "_mrtdebug", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 10, 0}, {0} }, { "_ire_reclaim_fraction", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1, 8, 3}, {3} }, { "_nce_reclaim_fraction", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1, 8, 3}, {3} }, /* tunable - 10 */ { "_dce_reclaim_fraction", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1, 8, 3}, {3} }, { "ttl", MOD_PROTO_IPV4, mod_set_uint32, mod_get_uint32, {1, 255, 255}, {255} }, { "_forward_src_routed", MOD_PROTO_IPV4, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, { "_wroff_extra", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 256, 32}, {32} }, /* following tunable is in seconds - a deviant! */ { "_pathmtu_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {2, 999999999, 60*20}, {60*20} }, { "_icmp_return_data_bytes", MOD_PROTO_IPV4, mod_set_uint32, mod_get_uint32, {8, 65536, 64}, {64} }, { "_path_mtu_discovery", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_pmtu_min", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {68, 65535, 576}, {576} }, { "_ignore_redirect", MOD_PROTO_IPV4, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, { "_arp_icmp_error", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, /* tunable - 20 */ { "_broadcast_ttl", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1, 254, 1}, {1} }, { "_icmp_err_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 99999, 100}, {100} }, { "_icmp_err_burst", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1, 99999, 10}, {10} }, { "_reass_queue_bytes", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 999999999, 1000000}, {1000000} }, /* * See comments for ip_strict_src_multihoming for an explanation * of the semantics of ip_strict_dst_multihoming */ { "_strict_dst_multihoming", MOD_PROTO_IPV4, mod_set_uint32, mod_get_uint32, {0, 1, 0}, {0} }, { "_addrs_per_if", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1, MAX_ADDRS_PER_IF, 256}, {256} }, { "_ipsec_override_persocket_policy", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, { "_icmp_accept_clear_messages", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_igmp_accept_clear_messages", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_ndp_delay_first_probe_time", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {2, 999999999, ND_DELAY_FIRST_PROBE_TIME}, {ND_DELAY_FIRST_PROBE_TIME} }, /* tunable - 30 */ { "_ndp_max_unicast_solicit", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1, 999999999, ND_MAX_UNICAST_SOLICIT}, {ND_MAX_UNICAST_SOLICIT} }, { "hoplimit", MOD_PROTO_IPV6, mod_set_uint32, mod_get_uint32, {1, 255, IPV6_MAX_HOPS}, {IPV6_MAX_HOPS} }, { "_icmp_return_data_bytes", MOD_PROTO_IPV6, mod_set_uint32, mod_get_uint32, {8, IPV6_MIN_MTU, IPV6_MIN_MTU}, {IPV6_MIN_MTU} }, { "_forward_src_routed", MOD_PROTO_IPV6, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, { "_respond_to_echo_multicast", MOD_PROTO_IPV6, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_send_redirects", MOD_PROTO_IPV6, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_ignore_redirect", MOD_PROTO_IPV6, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, /* * See comments for ip6_strict_src_multihoming for an explanation * of the semantics of ip6_strict_dst_multihoming */ { "_strict_dst_multihoming", MOD_PROTO_IPV6, mod_set_uint32, mod_get_uint32, {0, 1, 0}, {0} }, { "_src_check", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 2, 2}, {2} }, { "_ipsec_policy_log_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 999999, 1000}, {1000} }, /* tunable - 40 */ { "_pim_accept_clear_messages", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_ndp_unsolicit_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1000, 20000, 2000}, {2000} }, { "_ndp_unsolicit_count", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1, 20, 3}, {3} }, { "_ignore_home_address_opt", MOD_PROTO_IPV6, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_policy_mask", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 15, 0}, {0} }, { "_ecmp_behavior", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 2, 2}, {2} }, { "_multirt_ttl", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 255, 1}, {1} }, /* following tunable is in seconds - a deviant */ { "_ire_badcnt_lifetime", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 3600, 60}, {60} }, { "_max_temp_idle", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 999999, 60*60*24}, {60*60*24} }, { "_max_temp_defend", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 1000, 1}, {1} }, /* tunable - 50 */ /* * when a conflict of an active address is detected, * defend up to ip_max_defend times, within any * ip_defend_interval span. */ { "_max_defend", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 1000, 3}, {3} }, { "_defend_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 999999, 30}, {30} }, { "_dup_recovery", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 3600000, 300000}, {300000} }, { "_restrict_interzone_loopback", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_lso_outbound", MOD_PROTO_IP, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_igmp_max_version", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {IGMP_V1_ROUTER, IGMP_V3_ROUTER, IGMP_V3_ROUTER}, {IGMP_V3_ROUTER} }, { "_mld_max_version", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {MLD_V1_ROUTER, MLD_V2_ROUTER, MLD_V2_ROUTER}, {MLD_V2_ROUTER} }, { "forwarding", MOD_PROTO_IPV4, ip_set_forwarding, ip_get_forwarding, {IP_FORWARD_NEVER}, {IP_FORWARD_NEVER} }, { "forwarding", MOD_PROTO_IPV6, ip_set_forwarding, ip_get_forwarding, {IP_FORWARD_NEVER}, {IP_FORWARD_NEVER} }, { "_reasm_timeout", MOD_PROTO_IPV4, mod_set_uint32, mod_get_uint32, {5, 255, IP_REASM_TIMEOUT}, {IP_REASM_TIMEOUT} }, /* tunable - 60 */ { "_reasm_timeout", MOD_PROTO_IPV6, mod_set_uint32, mod_get_uint32, {5, 255, IPV6_REASM_TIMEOUT}, {IPV6_REASM_TIMEOUT} }, { "_cgtp_filter", MOD_PROTO_IP, ip_set_cgtp_filter, mod_get_boolean, {B_FALSE}, {B_FALSE} }, /* delay before sending first probe: */ { "_arp_probe_delay", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 20000, 1000}, {1000} }, { "_arp_fastprobe_delay", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 20000, 100}, {100} }, /* interval at which DAD probes are sent: */ { "_arp_probe_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {10, 20000, 1500}, {1500} }, { "_arp_fastprobe_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {10, 20000, 150}, {150} }, { "_arp_probe_count", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 20, 3}, {3} }, { "_arp_fastprobe_count", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 20, 3}, {3} }, { "_dad_announce_interval", MOD_PROTO_IPV4, mod_set_uint32, mod_get_uint32, {0, 3600000, 15000}, {15000} }, { "_dad_announce_interval", MOD_PROTO_IPV6, mod_set_uint32, mod_get_uint32, {0, 3600000, 15000}, {15000} }, /* tunable - 70 */ /* * Rate limiting parameters for DAD defense used in * ill_defend_rate_limit(): * defend_rate : pkts/hour permitted * defend_interval : time that can elapse before we send out a * DAD defense. * defend_period: denominator for defend_rate (in seconds). */ { "_arp_defend_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 3600000, 300000}, {300000} }, { "_arp_defend_rate", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 20000, 100}, {100} }, { "_ndp_defend_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 3600000, 300000}, {300000} }, { "_ndp_defend_rate", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {0, 20000, 100}, {100} }, { "_arp_defend_period", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {5, 86400, 3600}, {3600} }, { "_ndp_defend_period", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {5, 86400, 3600}, {3600} }, { "_icmp_return_pmtu", MOD_PROTO_IPV4, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, { "_icmp_return_pmtu", MOD_PROTO_IPV6, mod_set_boolean, mod_get_boolean, {B_TRUE}, {B_TRUE} }, /* * publish count/interval values used to announce local addresses * for IPv4, IPv6. */ { "_arp_publish_count", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1, 20, 5}, {5} }, { "_arp_publish_interval", MOD_PROTO_IP, mod_set_uint32, mod_get_uint32, {1000, 20000, 2000}, {2000} }, /* tunable - 80 */ /* * The ip*strict_src_multihoming and ip*strict_dst_multihoming provide * a range of choices for setting strong/weak/preferred end-system * behavior. The semantics for setting these are: * * ip*_strict_dst_multihoming = 0 * weak end system model for managing ip destination addresses. * A packet with IP dst D1 that's received on interface I1 will be * accepted as long as D1 is one of the local addresses on * the machine, even if D1 is not configured on I1. * ip*strict_dst_multihioming = 1 * strong end system model for managing ip destination addresses. * A packet with IP dst D1 that's received on interface I1 will be * accepted if, and only if, D1 is configured on I1. * * ip*strict_src_multihoming = 0 * Source agnostic route selection for outgoing packets: the * outgoing interface for a packet will be computed using * default algorithms for route selection, where the route * with the longest matching prefix is chosen for the output * unless other route selection constraints are explicitly * specified during routing table lookup. This may result * in packet being sent out on interface I2 with source * address S1, even though S1 is not a configured address on I2. * ip*strict_src_multihoming = 1 * Preferred source aware route selection for outgoing packets: for * a packet with source S2, destination D2, the route selection * algorithm will first attempt to find a route for the destination * that goes out through an interface where S2 is * configured. If such a route cannot be found, then the * best-matching route for D2 will be selected. * ip*strict_src_multihoming = 2 * Source aware route selection for outgoing packets: a packet will * be sent out on an interface I2 only if the src address S2 of the * packet is a configured address on I2. In conjunction with * the setting 'ip_strict_dst_multihoming == 1', this will result in * the implementation of Strong ES as defined in Section 3.3.4.2 of * RFC 1122 */ { "_strict_src_multihoming", MOD_PROTO_IPV4, ip_set_src_multihoming, mod_get_uint32, {0, 2, 0}, {0} }, { "_strict_src_multihoming", MOD_PROTO_IPV6, ip_set_src_multihoming, mod_get_uint32, {0, 2, 0}, {0} }, #ifdef DEBUG { "_drop_inbound_icmpv6", MOD_PROTO_IPV6, mod_set_boolean, mod_get_boolean, {B_FALSE}, {B_FALSE} }, #else { "", 0, NULL, NULL, {0}, {0} }, #endif { "mtu", MOD_PROTO_IPV4, NULL, ip_get_mtu, {0}, {0} }, { "mtu", MOD_PROTO_IPV6, NULL, ip_get_mtu, {0}, {0} }, /* * The following entry is a placeholder for `ip_debug' global * variable. Within these callback functions, we will be * setting/getting the global variable */ { "_debug", MOD_PROTO_IP, ip_set_debug, ip_get_debug, {0, 20, 0}, {0} }, { "hostmodel", MOD_PROTO_IPV4, ip_set_hostmodel, ip_get_hostmodel, {IP_WEAK_ES, IP_STRONG_ES, IP_WEAK_ES}, {IP_WEAK_ES} }, { "hostmodel", MOD_PROTO_IPV6, ip_set_hostmodel, ip_get_hostmodel, {IP_WEAK_ES, IP_STRONG_ES, IP_WEAK_ES}, {IP_WEAK_ES} }, { "?", MOD_PROTO_IP, NULL, mod_get_allprop, {0}, {0} }, { NULL, 0, NULL, NULL, {0}, {0} } }; int ip_propinfo_count = A_CNT(ip_propinfo_tbl);