1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/types.h> 30*0Sstevel@tonic-gate #include <sys/systm.h> 31*0Sstevel@tonic-gate #include <sys/stream.h> 32*0Sstevel@tonic-gate #include <sys/ddi.h> 33*0Sstevel@tonic-gate #include <sys/sunddi.h> 34*0Sstevel@tonic-gate #include <sys/kmem.h> 35*0Sstevel@tonic-gate #include <sys/socket.h> 36*0Sstevel@tonic-gate #include <sys/sysmacros.h> 37*0Sstevel@tonic-gate #include <sys/list.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #include <netinet/in.h> 40*0Sstevel@tonic-gate #include <netinet/ip6.h> 41*0Sstevel@tonic-gate #include <netinet/sctp.h> 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate #include <inet/common.h> 44*0Sstevel@tonic-gate #include <inet/ip.h> 45*0Sstevel@tonic-gate #include <inet/ip6.h> 46*0Sstevel@tonic-gate #include <inet/ip_if.h> 47*0Sstevel@tonic-gate #include <inet/ipclassifier.h> 48*0Sstevel@tonic-gate #include <inet/sctp_ip.h> 49*0Sstevel@tonic-gate #include "sctp_impl.h" 50*0Sstevel@tonic-gate #include "sctp_addr.h" 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate static void sctp_ipif_inactive(sctp_ipif_t *); 53*0Sstevel@tonic-gate static sctp_ipif_t *sctp_lookup_ipif_addr(in6_addr_t *, boolean_t, 54*0Sstevel@tonic-gate zoneid_t zoneid); 55*0Sstevel@tonic-gate static int sctp_get_all_ipifs(sctp_t *, int); 56*0Sstevel@tonic-gate int sctp_valid_addr_list(sctp_t *, const void *, uint32_t); 57*0Sstevel@tonic-gate sctp_saddr_ipif_t *sctp_ipif_lookup(sctp_t *, uint_t); 58*0Sstevel@tonic-gate static int sctp_ipif_hash_insert(sctp_t *, sctp_ipif_t *, int); 59*0Sstevel@tonic-gate static void sctp_ipif_hash_remove(sctp_t *, sctp_ipif_t *); 60*0Sstevel@tonic-gate static int sctp_compare_ipif_list(sctp_ipif_hash_t *, 61*0Sstevel@tonic-gate sctp_ipif_hash_t *); 62*0Sstevel@tonic-gate int sctp_compare_saddrs(sctp_t *, sctp_t *); 63*0Sstevel@tonic-gate static int sctp_copy_ipifs(sctp_ipif_hash_t *, sctp_t *, int); 64*0Sstevel@tonic-gate int sctp_dup_saddrs(sctp_t *, sctp_t *, int); 65*0Sstevel@tonic-gate void sctp_free_saddrs(sctp_t *); 66*0Sstevel@tonic-gate void sctp_update_ill(ill_t *, int); 67*0Sstevel@tonic-gate void sctp_update_ipif(ipif_t *, int); 68*0Sstevel@tonic-gate void sctp_move_ipif(ipif_t *, ill_t *, ill_t *); 69*0Sstevel@tonic-gate void sctp_del_saddr(sctp_t *, sctp_saddr_ipif_t *); 70*0Sstevel@tonic-gate void sctp_del_saddr_list(sctp_t *, const void *, int, 71*0Sstevel@tonic-gate boolean_t); 72*0Sstevel@tonic-gate sctp_saddr_ipif_t *sctp_saddr_lookup(sctp_t *, in6_addr_t *); 73*0Sstevel@tonic-gate in6_addr_t sctp_get_valid_addr(sctp_t *, boolean_t); 74*0Sstevel@tonic-gate int sctp_getmyaddrs(void *, void *, int *); 75*0Sstevel@tonic-gate void sctp_saddr_init(); 76*0Sstevel@tonic-gate void sctp_saddr_fini(); 77*0Sstevel@tonic-gate #define SCTP_IPIF_USABLE(sctp_ipif_state) \ 78*0Sstevel@tonic-gate ((sctp_ipif_state) == SCTP_IPIFS_UP || \ 79*0Sstevel@tonic-gate ((sctp_ipif_state) == SCTP_IPIFS_DOWN)) 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate #define SCTP_ILL_HASH_FN(index) ((index) % SCTP_ILL_HASH) 82*0Sstevel@tonic-gate #define SCTP_IPIF_HASH_FN(seqid) ((seqid) % SCTP_IPIF_HASH) 83*0Sstevel@tonic-gate #define SCTP_ILL_TO_PHYINDEX(ill) ((ill)->ill_phyint->phyint_ifindex) 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate /* Global list of SCTP ILLs */ 86*0Sstevel@tonic-gate sctp_ill_hash_t sctp_g_ills[SCTP_ILL_HASH]; 87*0Sstevel@tonic-gate uint32_t sctp_ills_count = 0; 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate /* Global list of SCTP IPIFs */ 90*0Sstevel@tonic-gate sctp_ipif_hash_t sctp_g_ipifs[SCTP_IPIF_HASH]; 91*0Sstevel@tonic-gate uint32_t sctp_g_ipifs_count; 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate /* 94*0Sstevel@tonic-gate * 95*0Sstevel@tonic-gate * 96*0Sstevel@tonic-gate * SCTP Interface list manipulation functions, locking used. 97*0Sstevel@tonic-gate * 98*0Sstevel@tonic-gate * 99*0Sstevel@tonic-gate */ 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate /* 102*0Sstevel@tonic-gate * Delete an SCTP IPIF from the list if the refcount goes to 0 and it is 103*0Sstevel@tonic-gate * marked as condemned. Also, check if the ILL needs to go away. 104*0Sstevel@tonic-gate * Called with no locks held. 105*0Sstevel@tonic-gate */ 106*0Sstevel@tonic-gate static void 107*0Sstevel@tonic-gate sctp_ipif_inactive(sctp_ipif_t *sctp_ipif) 108*0Sstevel@tonic-gate { 109*0Sstevel@tonic-gate sctp_ill_t *sctp_ill; 110*0Sstevel@tonic-gate uint_t ipif_index; 111*0Sstevel@tonic-gate uint_t ill_index; 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate rw_enter(&sctp_g_ills_lock, RW_READER); 114*0Sstevel@tonic-gate rw_enter(&sctp_g_ipifs_lock, RW_WRITER); 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate ipif_index = SCTP_IPIF_HASH_FN(sctp_ipif->sctp_ipif_id); 117*0Sstevel@tonic-gate sctp_ill = sctp_ipif->sctp_ipif_ill; 118*0Sstevel@tonic-gate ASSERT(sctp_ill != NULL); 119*0Sstevel@tonic-gate ill_index = SCTP_ILL_HASH_FN(sctp_ill->sctp_ill_index); 120*0Sstevel@tonic-gate if (sctp_ipif->sctp_ipif_state != SCTP_IPIFS_CONDEMNED || 121*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_refcnt != 0) { 122*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 123*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 124*0Sstevel@tonic-gate return; 125*0Sstevel@tonic-gate } 126*0Sstevel@tonic-gate list_remove(&sctp_g_ipifs[ipif_index].sctp_ipif_list, sctp_ipif); 127*0Sstevel@tonic-gate sctp_g_ipifs[ipif_index].ipif_count--; 128*0Sstevel@tonic-gate sctp_g_ipifs_count--; 129*0Sstevel@tonic-gate rw_destroy(&sctp_ipif->sctp_ipif_lock); 130*0Sstevel@tonic-gate kmem_free(sctp_ipif, sizeof (sctp_ipif_t)); 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate (void) atomic_add_32_nv(&sctp_ill->sctp_ill_ipifcnt, -1); 133*0Sstevel@tonic-gate if (rw_tryupgrade(&sctp_g_ills_lock) != 0) { 134*0Sstevel@tonic-gate rw_downgrade(&sctp_g_ipifs_lock); 135*0Sstevel@tonic-gate if (sctp_ill->sctp_ill_ipifcnt == 0 && 136*0Sstevel@tonic-gate sctp_ill->sctp_ill_state == SCTP_ILLS_CONDEMNED) { 137*0Sstevel@tonic-gate list_remove(&sctp_g_ills[ill_index].sctp_ill_list, 138*0Sstevel@tonic-gate (void *)sctp_ill); 139*0Sstevel@tonic-gate sctp_g_ills[ill_index].ill_count--; 140*0Sstevel@tonic-gate sctp_ills_count--; 141*0Sstevel@tonic-gate kmem_free(sctp_ill->sctp_ill_name, 142*0Sstevel@tonic-gate sctp_ill->sctp_ill_name_length); 143*0Sstevel@tonic-gate kmem_free(sctp_ill, sizeof (sctp_ill_t)); 144*0Sstevel@tonic-gate } 145*0Sstevel@tonic-gate } 146*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 147*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 148*0Sstevel@tonic-gate } 149*0Sstevel@tonic-gate 150*0Sstevel@tonic-gate /* 151*0Sstevel@tonic-gate * Lookup an SCTP IPIF given an IP address. Increments sctp_ipif refcnt. 152*0Sstevel@tonic-gate * Called with no locks held. 153*0Sstevel@tonic-gate */ 154*0Sstevel@tonic-gate static sctp_ipif_t * 155*0Sstevel@tonic-gate sctp_lookup_ipif_addr(in6_addr_t *addr, boolean_t refhold, zoneid_t zoneid) 156*0Sstevel@tonic-gate { 157*0Sstevel@tonic-gate int i; 158*0Sstevel@tonic-gate int j; 159*0Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 160*0Sstevel@tonic-gate 161*0Sstevel@tonic-gate rw_enter(&sctp_g_ipifs_lock, RW_READER); 162*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 163*0Sstevel@tonic-gate if (sctp_g_ipifs[i].ipif_count == 0) 164*0Sstevel@tonic-gate continue; 165*0Sstevel@tonic-gate sctp_ipif = list_head(&sctp_g_ipifs[i].sctp_ipif_list); 166*0Sstevel@tonic-gate for (j = 0; j < sctp_g_ipifs[i].ipif_count; j++) { 167*0Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_READER); 168*0Sstevel@tonic-gate if (zoneid == sctp_ipif->sctp_ipif_zoneid && 169*0Sstevel@tonic-gate SCTP_IPIF_USABLE(sctp_ipif->sctp_ipif_state) && 170*0Sstevel@tonic-gate IN6_ARE_ADDR_EQUAL(&sctp_ipif->sctp_ipif_saddr, 171*0Sstevel@tonic-gate addr)) { 172*0Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 173*0Sstevel@tonic-gate if (refhold) 174*0Sstevel@tonic-gate SCTP_IPIF_REFHOLD(sctp_ipif); 175*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 176*0Sstevel@tonic-gate return (sctp_ipif); 177*0Sstevel@tonic-gate } 178*0Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 179*0Sstevel@tonic-gate sctp_ipif = list_next(&sctp_g_ipifs[i].sctp_ipif_list, 180*0Sstevel@tonic-gate sctp_ipif); 181*0Sstevel@tonic-gate } 182*0Sstevel@tonic-gate } 183*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 184*0Sstevel@tonic-gate return (NULL); 185*0Sstevel@tonic-gate } 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate /* 188*0Sstevel@tonic-gate * Populate the list with all the SCTP ipifs for a given ipversion. 189*0Sstevel@tonic-gate * Increments sctp_ipif refcnt. 190*0Sstevel@tonic-gate * Called with no locks held. 191*0Sstevel@tonic-gate */ 192*0Sstevel@tonic-gate static int 193*0Sstevel@tonic-gate sctp_get_all_ipifs(sctp_t *sctp, int sleep) 194*0Sstevel@tonic-gate { 195*0Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 196*0Sstevel@tonic-gate int i; 197*0Sstevel@tonic-gate int j; 198*0Sstevel@tonic-gate int error = 0; 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate rw_enter(&sctp_g_ipifs_lock, RW_READER); 201*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 202*0Sstevel@tonic-gate if (sctp_g_ipifs[i].ipif_count == 0) 203*0Sstevel@tonic-gate continue; 204*0Sstevel@tonic-gate sctp_ipif = list_head(&sctp_g_ipifs[i].sctp_ipif_list); 205*0Sstevel@tonic-gate for (j = 0; j < sctp_g_ipifs[i].ipif_count; j++) { 206*0Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_READER); 207*0Sstevel@tonic-gate if (sctp_ipif->sctp_ipif_zoneid != sctp->sctp_zoneid || 208*0Sstevel@tonic-gate !SCTP_IPIF_USABLE(sctp_ipif->sctp_ipif_state) || 209*0Sstevel@tonic-gate (sctp->sctp_ipversion == IPV4_VERSION && 210*0Sstevel@tonic-gate !IN6_IS_ADDR_V4MAPPED( 211*0Sstevel@tonic-gate &sctp_ipif->sctp_ipif_saddr)) || 212*0Sstevel@tonic-gate (sctp->sctp_connp->conn_ipv6_v6only && 213*0Sstevel@tonic-gate IN6_IS_ADDR_V4MAPPED( 214*0Sstevel@tonic-gate &sctp_ipif->sctp_ipif_saddr))) { 215*0Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 216*0Sstevel@tonic-gate sctp_ipif = list_next( 217*0Sstevel@tonic-gate &sctp_g_ipifs[i].sctp_ipif_list, sctp_ipif); 218*0Sstevel@tonic-gate continue; 219*0Sstevel@tonic-gate } 220*0Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 221*0Sstevel@tonic-gate SCTP_IPIF_REFHOLD(sctp_ipif); 222*0Sstevel@tonic-gate error = sctp_ipif_hash_insert(sctp, sctp_ipif, sleep); 223*0Sstevel@tonic-gate if (error != 0) 224*0Sstevel@tonic-gate goto free_stuff; 225*0Sstevel@tonic-gate sctp_ipif = list_next(&sctp_g_ipifs[i].sctp_ipif_list, 226*0Sstevel@tonic-gate sctp_ipif); 227*0Sstevel@tonic-gate } 228*0Sstevel@tonic-gate } 229*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 230*0Sstevel@tonic-gate return (0); 231*0Sstevel@tonic-gate free_stuff: 232*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 233*0Sstevel@tonic-gate sctp_free_saddrs(sctp); 234*0Sstevel@tonic-gate return (ENOMEM); 235*0Sstevel@tonic-gate } 236*0Sstevel@tonic-gate 237*0Sstevel@tonic-gate /* 238*0Sstevel@tonic-gate * Given a list of address, fills in the list of SCTP ipifs if all the addresses 239*0Sstevel@tonic-gate * are present in the SCTP interface list, return number of addresses filled 240*0Sstevel@tonic-gate * or error. 241*0Sstevel@tonic-gate * Called with no locks held. 242*0Sstevel@tonic-gate */ 243*0Sstevel@tonic-gate int 244*0Sstevel@tonic-gate sctp_valid_addr_list(sctp_t *sctp, const void *addrs, uint32_t addrcnt) 245*0Sstevel@tonic-gate { 246*0Sstevel@tonic-gate struct sockaddr_in *sin4; 247*0Sstevel@tonic-gate struct sockaddr_in6 *sin6; 248*0Sstevel@tonic-gate struct in_addr *addr4; 249*0Sstevel@tonic-gate in6_addr_t addr; 250*0Sstevel@tonic-gate int cnt; 251*0Sstevel@tonic-gate int err = 0; 252*0Sstevel@tonic-gate int saddr_cnt = 0; 253*0Sstevel@tonic-gate sctp_ipif_t *ipif; 254*0Sstevel@tonic-gate boolean_t bind_to_all = B_FALSE; 255*0Sstevel@tonic-gate boolean_t check_addrs = B_FALSE; 256*0Sstevel@tonic-gate boolean_t check_lport = B_FALSE; 257*0Sstevel@tonic-gate 258*0Sstevel@tonic-gate /* 259*0Sstevel@tonic-gate * Need to check for port and address depending on the state. 260*0Sstevel@tonic-gate * After a socket is bound, we need to make sure that subsequent 261*0Sstevel@tonic-gate * bindx() has correct port. After an association is established, 262*0Sstevel@tonic-gate * we need to check for changing the bound address to invalid 263*0Sstevel@tonic-gate * addresses. 264*0Sstevel@tonic-gate */ 265*0Sstevel@tonic-gate if (sctp->sctp_state >= SCTPS_BOUND) { 266*0Sstevel@tonic-gate check_lport = B_TRUE; 267*0Sstevel@tonic-gate if (sctp->sctp_state > SCTPS_LISTEN) 268*0Sstevel@tonic-gate check_addrs = B_TRUE; 269*0Sstevel@tonic-gate } 270*0Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 271*0Sstevel@tonic-gate mutex_enter(&sctp->sctp_conn_tfp->tf_lock); 272*0Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 273*0Sstevel@tonic-gate mutex_enter(&sctp->sctp_listen_tfp->tf_lock); 274*0Sstevel@tonic-gate for (cnt = 0; cnt < addrcnt; cnt++) { 275*0Sstevel@tonic-gate boolean_t lookup_saddr = B_TRUE; 276*0Sstevel@tonic-gate 277*0Sstevel@tonic-gate switch (sctp->sctp_family) { 278*0Sstevel@tonic-gate case AF_INET: 279*0Sstevel@tonic-gate sin4 = (struct sockaddr_in *)addrs + cnt; 280*0Sstevel@tonic-gate if (sin4->sin_family != AF_INET || (check_lport && 281*0Sstevel@tonic-gate sin4->sin_port != sctp->sctp_lport)) { 282*0Sstevel@tonic-gate err = EINVAL; 283*0Sstevel@tonic-gate goto free_ret; 284*0Sstevel@tonic-gate } 285*0Sstevel@tonic-gate addr4 = &sin4->sin_addr; 286*0Sstevel@tonic-gate if (check_addrs && 287*0Sstevel@tonic-gate (addr4->s_addr == INADDR_ANY || 288*0Sstevel@tonic-gate addr4->s_addr == INADDR_BROADCAST || 289*0Sstevel@tonic-gate IN_MULTICAST(addr4->s_addr))) { 290*0Sstevel@tonic-gate err = EINVAL; 291*0Sstevel@tonic-gate goto free_ret; 292*0Sstevel@tonic-gate } 293*0Sstevel@tonic-gate IN6_INADDR_TO_V4MAPPED(addr4, &addr); 294*0Sstevel@tonic-gate if (!check_addrs && addr4->s_addr == INADDR_ANY) { 295*0Sstevel@tonic-gate lookup_saddr = B_FALSE; 296*0Sstevel@tonic-gate bind_to_all = B_TRUE; 297*0Sstevel@tonic-gate } 298*0Sstevel@tonic-gate 299*0Sstevel@tonic-gate break; 300*0Sstevel@tonic-gate case AF_INET6: 301*0Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)addrs + cnt; 302*0Sstevel@tonic-gate if (sin6->sin6_family != AF_INET6 || (check_lport && 303*0Sstevel@tonic-gate sin6->sin6_port != sctp->sctp_lport)) { 304*0Sstevel@tonic-gate err = EINVAL; 305*0Sstevel@tonic-gate goto free_ret; 306*0Sstevel@tonic-gate } 307*0Sstevel@tonic-gate addr = sin6->sin6_addr; 308*0Sstevel@tonic-gate if (sctp->sctp_connp->conn_ipv6_v6only && 309*0Sstevel@tonic-gate IN6_IS_ADDR_V4MAPPED(&addr)) { 310*0Sstevel@tonic-gate err = EAFNOSUPPORT; 311*0Sstevel@tonic-gate goto free_ret; 312*0Sstevel@tonic-gate } 313*0Sstevel@tonic-gate if (check_addrs && 314*0Sstevel@tonic-gate (IN6_IS_ADDR_LINKLOCAL(&addr) || 315*0Sstevel@tonic-gate IN6_IS_ADDR_MULTICAST(&addr) || 316*0Sstevel@tonic-gate IN6_IS_ADDR_UNSPECIFIED(&addr))) { 317*0Sstevel@tonic-gate err = EINVAL; 318*0Sstevel@tonic-gate goto free_ret; 319*0Sstevel@tonic-gate } 320*0Sstevel@tonic-gate if (!check_addrs && IN6_IS_ADDR_UNSPECIFIED(&addr)) { 321*0Sstevel@tonic-gate lookup_saddr = B_FALSE; 322*0Sstevel@tonic-gate bind_to_all = B_TRUE; 323*0Sstevel@tonic-gate } 324*0Sstevel@tonic-gate 325*0Sstevel@tonic-gate break; 326*0Sstevel@tonic-gate default: 327*0Sstevel@tonic-gate err = EAFNOSUPPORT; 328*0Sstevel@tonic-gate goto free_ret; 329*0Sstevel@tonic-gate } 330*0Sstevel@tonic-gate if (lookup_saddr) { 331*0Sstevel@tonic-gate ipif = sctp_lookup_ipif_addr(&addr, B_TRUE, 332*0Sstevel@tonic-gate sctp->sctp_zoneid); 333*0Sstevel@tonic-gate if (ipif == NULL) { 334*0Sstevel@tonic-gate /* Address not in the list */ 335*0Sstevel@tonic-gate err = EINVAL; 336*0Sstevel@tonic-gate goto free_ret; 337*0Sstevel@tonic-gate } else if (check_addrs && 338*0Sstevel@tonic-gate (ipif->sctp_ipif_ill->sctp_ill_flags & 339*0Sstevel@tonic-gate PHYI_LOOPBACK)) { 340*0Sstevel@tonic-gate SCTP_IPIF_REFRELE(ipif); 341*0Sstevel@tonic-gate err = EINVAL; 342*0Sstevel@tonic-gate goto free_ret; 343*0Sstevel@tonic-gate } 344*0Sstevel@tonic-gate } 345*0Sstevel@tonic-gate if (!bind_to_all) { 346*0Sstevel@tonic-gate err = sctp_ipif_hash_insert(sctp, ipif, KM_SLEEP); 347*0Sstevel@tonic-gate if (err != 0) { 348*0Sstevel@tonic-gate SCTP_IPIF_REFRELE(ipif); 349*0Sstevel@tonic-gate if (check_addrs && err == EALREADY) 350*0Sstevel@tonic-gate err = EADDRINUSE; 351*0Sstevel@tonic-gate goto free_ret; 352*0Sstevel@tonic-gate } 353*0Sstevel@tonic-gate saddr_cnt++; 354*0Sstevel@tonic-gate } 355*0Sstevel@tonic-gate } 356*0Sstevel@tonic-gate if (bind_to_all) { 357*0Sstevel@tonic-gate /* 358*0Sstevel@tonic-gate * Free whatever we might have added before encountering 359*0Sstevel@tonic-gate * inaddr_any. 360*0Sstevel@tonic-gate */ 361*0Sstevel@tonic-gate if (sctp->sctp_nsaddrs > 0) { 362*0Sstevel@tonic-gate sctp_free_saddrs(sctp); 363*0Sstevel@tonic-gate ASSERT(sctp->sctp_nsaddrs == 0); 364*0Sstevel@tonic-gate } 365*0Sstevel@tonic-gate err = sctp_get_all_ipifs(sctp, KM_SLEEP); 366*0Sstevel@tonic-gate if (err != 0) 367*0Sstevel@tonic-gate return (err); 368*0Sstevel@tonic-gate sctp->sctp_bound_to_all = 1; 369*0Sstevel@tonic-gate } 370*0Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 371*0Sstevel@tonic-gate mutex_exit(&sctp->sctp_listen_tfp->tf_lock); 372*0Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 373*0Sstevel@tonic-gate mutex_exit(&sctp->sctp_conn_tfp->tf_lock); 374*0Sstevel@tonic-gate return (0); 375*0Sstevel@tonic-gate free_ret: 376*0Sstevel@tonic-gate if (saddr_cnt != 0) 377*0Sstevel@tonic-gate sctp_del_saddr_list(sctp, addrs, saddr_cnt, B_TRUE); 378*0Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 379*0Sstevel@tonic-gate mutex_exit(&sctp->sctp_listen_tfp->tf_lock); 380*0Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 381*0Sstevel@tonic-gate mutex_exit(&sctp->sctp_conn_tfp->tf_lock); 382*0Sstevel@tonic-gate return (err); 383*0Sstevel@tonic-gate } 384*0Sstevel@tonic-gate 385*0Sstevel@tonic-gate sctp_saddr_ipif_t * 386*0Sstevel@tonic-gate sctp_ipif_lookup(sctp_t *sctp, uint_t ipif_index) 387*0Sstevel@tonic-gate { 388*0Sstevel@tonic-gate int cnt; 389*0Sstevel@tonic-gate int seqid = SCTP_IPIF_HASH_FN(ipif_index); 390*0Sstevel@tonic-gate sctp_saddr_ipif_t *ipif_obj; 391*0Sstevel@tonic-gate 392*0Sstevel@tonic-gate if (sctp->sctp_saddrs[seqid].ipif_count == 0) 393*0Sstevel@tonic-gate return (NULL); 394*0Sstevel@tonic-gate 395*0Sstevel@tonic-gate ipif_obj = list_head(&sctp->sctp_saddrs[seqid].sctp_ipif_list); 396*0Sstevel@tonic-gate for (cnt = 0; cnt < sctp->sctp_saddrs[seqid].ipif_count; cnt++) { 397*0Sstevel@tonic-gate if (ipif_obj->saddr_ipifp->sctp_ipif_id == ipif_index) 398*0Sstevel@tonic-gate return (ipif_obj); 399*0Sstevel@tonic-gate ipif_obj = list_next(&sctp->sctp_saddrs[seqid].sctp_ipif_list, 400*0Sstevel@tonic-gate ipif_obj); 401*0Sstevel@tonic-gate } 402*0Sstevel@tonic-gate return (NULL); 403*0Sstevel@tonic-gate } 404*0Sstevel@tonic-gate 405*0Sstevel@tonic-gate static int 406*0Sstevel@tonic-gate sctp_ipif_hash_insert(sctp_t *sctp, sctp_ipif_t *ipif, int sleep) 407*0Sstevel@tonic-gate { 408*0Sstevel@tonic-gate int cnt; 409*0Sstevel@tonic-gate sctp_saddr_ipif_t *ipif_obj; 410*0Sstevel@tonic-gate int seqid = SCTP_IPIF_HASH_FN(ipif->sctp_ipif_id); 411*0Sstevel@tonic-gate 412*0Sstevel@tonic-gate ipif_obj = list_head(&sctp->sctp_saddrs[seqid].sctp_ipif_list); 413*0Sstevel@tonic-gate for (cnt = 0; cnt < sctp->sctp_saddrs[seqid].ipif_count; cnt++) { 414*0Sstevel@tonic-gate if (ipif_obj->saddr_ipifp->sctp_ipif_id == ipif->sctp_ipif_id) 415*0Sstevel@tonic-gate return (EALREADY); 416*0Sstevel@tonic-gate ipif_obj = list_next(&sctp->sctp_saddrs[seqid].sctp_ipif_list, 417*0Sstevel@tonic-gate ipif_obj); 418*0Sstevel@tonic-gate } 419*0Sstevel@tonic-gate ipif_obj = kmem_zalloc(sizeof (sctp_saddr_ipif_t), sleep); 420*0Sstevel@tonic-gate if (ipif_obj == NULL) { 421*0Sstevel@tonic-gate /* Need to do something */ 422*0Sstevel@tonic-gate return (ENOMEM); 423*0Sstevel@tonic-gate } 424*0Sstevel@tonic-gate ipif_obj->saddr_ipifp = ipif; 425*0Sstevel@tonic-gate list_insert_tail(&sctp->sctp_saddrs[seqid].sctp_ipif_list, ipif_obj); 426*0Sstevel@tonic-gate sctp->sctp_saddrs[seqid].ipif_count++; 427*0Sstevel@tonic-gate sctp->sctp_nsaddrs++; 428*0Sstevel@tonic-gate return (0); 429*0Sstevel@tonic-gate } 430*0Sstevel@tonic-gate 431*0Sstevel@tonic-gate static void 432*0Sstevel@tonic-gate sctp_ipif_hash_remove(sctp_t *sctp, sctp_ipif_t *ipif) 433*0Sstevel@tonic-gate { 434*0Sstevel@tonic-gate int cnt; 435*0Sstevel@tonic-gate sctp_saddr_ipif_t *ipif_obj; 436*0Sstevel@tonic-gate int seqid = SCTP_IPIF_HASH_FN(ipif->sctp_ipif_id); 437*0Sstevel@tonic-gate 438*0Sstevel@tonic-gate ipif_obj = list_head(&sctp->sctp_saddrs[seqid].sctp_ipif_list); 439*0Sstevel@tonic-gate for (cnt = 0; cnt < sctp->sctp_saddrs[seqid].ipif_count; cnt++) { 440*0Sstevel@tonic-gate if (ipif_obj->saddr_ipifp->sctp_ipif_id == ipif->sctp_ipif_id) { 441*0Sstevel@tonic-gate list_remove(&sctp->sctp_saddrs[seqid].sctp_ipif_list, 442*0Sstevel@tonic-gate ipif_obj); 443*0Sstevel@tonic-gate sctp->sctp_nsaddrs--; 444*0Sstevel@tonic-gate sctp->sctp_saddrs[seqid].ipif_count--; 445*0Sstevel@tonic-gate SCTP_IPIF_REFRELE(ipif_obj->saddr_ipifp); 446*0Sstevel@tonic-gate kmem_free(ipif_obj, sizeof (sctp_saddr_ipif_t)); 447*0Sstevel@tonic-gate break; 448*0Sstevel@tonic-gate } 449*0Sstevel@tonic-gate ipif_obj = list_next(&sctp->sctp_saddrs[seqid].sctp_ipif_list, 450*0Sstevel@tonic-gate ipif_obj); 451*0Sstevel@tonic-gate } 452*0Sstevel@tonic-gate } 453*0Sstevel@tonic-gate 454*0Sstevel@tonic-gate static int 455*0Sstevel@tonic-gate sctp_compare_ipif_list(sctp_ipif_hash_t *list1, sctp_ipif_hash_t *list2) 456*0Sstevel@tonic-gate { 457*0Sstevel@tonic-gate int i; 458*0Sstevel@tonic-gate int j; 459*0Sstevel@tonic-gate sctp_saddr_ipif_t *obj1; 460*0Sstevel@tonic-gate sctp_saddr_ipif_t *obj2; 461*0Sstevel@tonic-gate int overlap = 0; 462*0Sstevel@tonic-gate 463*0Sstevel@tonic-gate obj1 = list_head(&list1->sctp_ipif_list); 464*0Sstevel@tonic-gate for (i = 0; i < list1->ipif_count; i++) { 465*0Sstevel@tonic-gate obj2 = list_head(&list2->sctp_ipif_list); 466*0Sstevel@tonic-gate for (j = 0; j < list2->ipif_count; j++) { 467*0Sstevel@tonic-gate if (obj1->saddr_ipifp->sctp_ipif_id == 468*0Sstevel@tonic-gate obj2->saddr_ipifp->sctp_ipif_id) { 469*0Sstevel@tonic-gate overlap++; 470*0Sstevel@tonic-gate break; 471*0Sstevel@tonic-gate } 472*0Sstevel@tonic-gate obj2 = list_next(&list2->sctp_ipif_list, 473*0Sstevel@tonic-gate obj2); 474*0Sstevel@tonic-gate } 475*0Sstevel@tonic-gate obj1 = list_next(&list1->sctp_ipif_list, obj1); 476*0Sstevel@tonic-gate } 477*0Sstevel@tonic-gate return (overlap); 478*0Sstevel@tonic-gate } 479*0Sstevel@tonic-gate 480*0Sstevel@tonic-gate int 481*0Sstevel@tonic-gate sctp_compare_saddrs(sctp_t *sctp1, sctp_t *sctp2) 482*0Sstevel@tonic-gate { 483*0Sstevel@tonic-gate int i; 484*0Sstevel@tonic-gate int overlap = 0; 485*0Sstevel@tonic-gate 486*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 487*0Sstevel@tonic-gate overlap += sctp_compare_ipif_list(&sctp1->sctp_saddrs[i], 488*0Sstevel@tonic-gate &sctp2->sctp_saddrs[i]); 489*0Sstevel@tonic-gate } 490*0Sstevel@tonic-gate 491*0Sstevel@tonic-gate if (sctp1->sctp_nsaddrs == sctp2->sctp_nsaddrs && 492*0Sstevel@tonic-gate overlap == sctp1->sctp_nsaddrs) { 493*0Sstevel@tonic-gate return (SCTP_ADDR_EQUAL); 494*0Sstevel@tonic-gate } 495*0Sstevel@tonic-gate 496*0Sstevel@tonic-gate if (overlap == sctp1->sctp_nsaddrs) 497*0Sstevel@tonic-gate return (SCTP_ADDR_SUBSET); 498*0Sstevel@tonic-gate 499*0Sstevel@tonic-gate if (overlap > 0) 500*0Sstevel@tonic-gate return (SCTP_ADDR_OVERLAP); 501*0Sstevel@tonic-gate 502*0Sstevel@tonic-gate return (SCTP_ADDR_DISJOINT); 503*0Sstevel@tonic-gate } 504*0Sstevel@tonic-gate 505*0Sstevel@tonic-gate static int 506*0Sstevel@tonic-gate sctp_copy_ipifs(sctp_ipif_hash_t *list1, sctp_t *sctp2, int sleep) 507*0Sstevel@tonic-gate { 508*0Sstevel@tonic-gate int i; 509*0Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 510*0Sstevel@tonic-gate int error = 0; 511*0Sstevel@tonic-gate 512*0Sstevel@tonic-gate obj = list_head(&list1->sctp_ipif_list); 513*0Sstevel@tonic-gate for (i = 0; i < list1->ipif_count; i++) { 514*0Sstevel@tonic-gate SCTP_IPIF_REFHOLD(obj->saddr_ipifp); 515*0Sstevel@tonic-gate error = sctp_ipif_hash_insert(sctp2, obj->saddr_ipifp, sleep); 516*0Sstevel@tonic-gate if (error != 0) 517*0Sstevel@tonic-gate return (error); 518*0Sstevel@tonic-gate obj = list_next(&list1->sctp_ipif_list, obj); 519*0Sstevel@tonic-gate } 520*0Sstevel@tonic-gate return (error); 521*0Sstevel@tonic-gate } 522*0Sstevel@tonic-gate 523*0Sstevel@tonic-gate int 524*0Sstevel@tonic-gate sctp_dup_saddrs(sctp_t *sctp1, sctp_t *sctp2, int sleep) 525*0Sstevel@tonic-gate { 526*0Sstevel@tonic-gate int error = 0; 527*0Sstevel@tonic-gate int i; 528*0Sstevel@tonic-gate 529*0Sstevel@tonic-gate if (sctp1 == NULL || sctp1->sctp_bound_to_all) 530*0Sstevel@tonic-gate return (sctp_get_all_ipifs(sctp2, sleep)); 531*0Sstevel@tonic-gate 532*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 533*0Sstevel@tonic-gate if (sctp1->sctp_saddrs[i].ipif_count == 0) 534*0Sstevel@tonic-gate continue; 535*0Sstevel@tonic-gate error = sctp_copy_ipifs(&sctp1->sctp_saddrs[i], sctp2, sleep); 536*0Sstevel@tonic-gate if (error != 0) { 537*0Sstevel@tonic-gate sctp_free_saddrs(sctp2); 538*0Sstevel@tonic-gate return (error); 539*0Sstevel@tonic-gate } 540*0Sstevel@tonic-gate } 541*0Sstevel@tonic-gate return (0); 542*0Sstevel@tonic-gate } 543*0Sstevel@tonic-gate 544*0Sstevel@tonic-gate void 545*0Sstevel@tonic-gate sctp_free_saddrs(sctp_t *sctp) 546*0Sstevel@tonic-gate { 547*0Sstevel@tonic-gate int i; 548*0Sstevel@tonic-gate int l; 549*0Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 550*0Sstevel@tonic-gate 551*0Sstevel@tonic-gate if (sctp->sctp_nsaddrs == 0) 552*0Sstevel@tonic-gate return; 553*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 554*0Sstevel@tonic-gate if (sctp->sctp_saddrs[i].ipif_count == 0) 555*0Sstevel@tonic-gate continue; 556*0Sstevel@tonic-gate obj = list_tail(&sctp->sctp_saddrs[i].sctp_ipif_list); 557*0Sstevel@tonic-gate for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) { 558*0Sstevel@tonic-gate list_remove(&sctp->sctp_saddrs[i].sctp_ipif_list, obj); 559*0Sstevel@tonic-gate SCTP_IPIF_REFRELE(obj->saddr_ipifp); 560*0Sstevel@tonic-gate sctp->sctp_nsaddrs--; 561*0Sstevel@tonic-gate kmem_free(obj, sizeof (sctp_saddr_ipif_t)); 562*0Sstevel@tonic-gate obj = list_tail(&sctp->sctp_saddrs[i].sctp_ipif_list); 563*0Sstevel@tonic-gate } 564*0Sstevel@tonic-gate sctp->sctp_saddrs[i].ipif_count = 0; 565*0Sstevel@tonic-gate } 566*0Sstevel@tonic-gate ASSERT(sctp->sctp_nsaddrs == 0); 567*0Sstevel@tonic-gate } 568*0Sstevel@tonic-gate 569*0Sstevel@tonic-gate /* 570*0Sstevel@tonic-gate * Add/Delete the given ILL from the SCTP ILL list. Called with no locks 571*0Sstevel@tonic-gate * held. 572*0Sstevel@tonic-gate */ 573*0Sstevel@tonic-gate void 574*0Sstevel@tonic-gate sctp_update_ill(ill_t *ill, int op) 575*0Sstevel@tonic-gate { 576*0Sstevel@tonic-gate int i; 577*0Sstevel@tonic-gate sctp_ill_t *sctp_ill = NULL; 578*0Sstevel@tonic-gate uint_t index; 579*0Sstevel@tonic-gate 580*0Sstevel@tonic-gate ip2dbg(("sctp_update_ill: %s\n", ill->ill_name)); 581*0Sstevel@tonic-gate 582*0Sstevel@tonic-gate rw_enter(&sctp_g_ills_lock, RW_WRITER); 583*0Sstevel@tonic-gate 584*0Sstevel@tonic-gate index = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(ill)); 585*0Sstevel@tonic-gate sctp_ill = list_head(&sctp_g_ills[index].sctp_ill_list); 586*0Sstevel@tonic-gate for (i = 0; i < sctp_g_ills[index].ill_count; i++) { 587*0Sstevel@tonic-gate if (sctp_ill->sctp_ill_index == SCTP_ILL_TO_PHYINDEX(ill)) 588*0Sstevel@tonic-gate break; 589*0Sstevel@tonic-gate sctp_ill = list_next(&sctp_g_ills[index].sctp_ill_list, 590*0Sstevel@tonic-gate sctp_ill); 591*0Sstevel@tonic-gate } 592*0Sstevel@tonic-gate 593*0Sstevel@tonic-gate switch (op) { 594*0Sstevel@tonic-gate case SCTP_ILL_INSERT: 595*0Sstevel@tonic-gate if (sctp_ill != NULL) { 596*0Sstevel@tonic-gate /* Unmark it if it is condemned */ 597*0Sstevel@tonic-gate if (sctp_ill->sctp_ill_state == SCTP_ILLS_CONDEMNED) 598*0Sstevel@tonic-gate sctp_ill->sctp_ill_state = 0; 599*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 600*0Sstevel@tonic-gate return; 601*0Sstevel@tonic-gate } 602*0Sstevel@tonic-gate sctp_ill = kmem_zalloc(sizeof (sctp_ill_t), KM_NOSLEEP); 603*0Sstevel@tonic-gate /* Need to re-try? */ 604*0Sstevel@tonic-gate if (sctp_ill == NULL) { 605*0Sstevel@tonic-gate ip1dbg(("sctp_ill_insert: mem error..\n")); 606*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 607*0Sstevel@tonic-gate return; 608*0Sstevel@tonic-gate } 609*0Sstevel@tonic-gate sctp_ill->sctp_ill_name = 610*0Sstevel@tonic-gate kmem_zalloc(ill->ill_name_length, KM_NOSLEEP); 611*0Sstevel@tonic-gate if (sctp_ill->sctp_ill_name == NULL) { 612*0Sstevel@tonic-gate ip1dbg(("sctp_ill_insert: mem error..\n")); 613*0Sstevel@tonic-gate kmem_free(sctp_ill, sizeof (sctp_ill_t)); 614*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 615*0Sstevel@tonic-gate return; 616*0Sstevel@tonic-gate } 617*0Sstevel@tonic-gate bcopy(ill->ill_name, sctp_ill->sctp_ill_name, 618*0Sstevel@tonic-gate ill->ill_name_length); 619*0Sstevel@tonic-gate sctp_ill->sctp_ill_name_length = ill->ill_name_length; 620*0Sstevel@tonic-gate sctp_ill->sctp_ill_index = SCTP_ILL_TO_PHYINDEX(ill); 621*0Sstevel@tonic-gate sctp_ill->sctp_ill_flags = ill->ill_phyint->phyint_flags; 622*0Sstevel@tonic-gate list_insert_tail(&sctp_g_ills[index].sctp_ill_list, 623*0Sstevel@tonic-gate (void *)sctp_ill); 624*0Sstevel@tonic-gate sctp_g_ills[index].ill_count++; 625*0Sstevel@tonic-gate sctp_ills_count++; 626*0Sstevel@tonic-gate 627*0Sstevel@tonic-gate break; 628*0Sstevel@tonic-gate 629*0Sstevel@tonic-gate case SCTP_ILL_REMOVE: 630*0Sstevel@tonic-gate 631*0Sstevel@tonic-gate if (sctp_ill == NULL) { 632*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 633*0Sstevel@tonic-gate return; 634*0Sstevel@tonic-gate } 635*0Sstevel@tonic-gate if (sctp_ill->sctp_ill_ipifcnt == 0) { 636*0Sstevel@tonic-gate list_remove(&sctp_g_ills[index].sctp_ill_list, 637*0Sstevel@tonic-gate (void *)sctp_ill); 638*0Sstevel@tonic-gate sctp_g_ills[index].ill_count--; 639*0Sstevel@tonic-gate sctp_ills_count--; 640*0Sstevel@tonic-gate kmem_free(sctp_ill->sctp_ill_name, 641*0Sstevel@tonic-gate ill->ill_name_length); 642*0Sstevel@tonic-gate kmem_free(sctp_ill, sizeof (sctp_ill_t)); 643*0Sstevel@tonic-gate } else { 644*0Sstevel@tonic-gate sctp_ill->sctp_ill_state = SCTP_ILLS_CONDEMNED; 645*0Sstevel@tonic-gate } 646*0Sstevel@tonic-gate 647*0Sstevel@tonic-gate break; 648*0Sstevel@tonic-gate } 649*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 650*0Sstevel@tonic-gate } 651*0Sstevel@tonic-gate 652*0Sstevel@tonic-gate /* move ipif from f_ill to t_ill */ 653*0Sstevel@tonic-gate void 654*0Sstevel@tonic-gate sctp_move_ipif(ipif_t *ipif, ill_t *f_ill, ill_t *t_ill) 655*0Sstevel@tonic-gate { 656*0Sstevel@tonic-gate sctp_ill_t *fsctp_ill = NULL; 657*0Sstevel@tonic-gate sctp_ill_t *tsctp_ill = NULL; 658*0Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 659*0Sstevel@tonic-gate uint_t index; 660*0Sstevel@tonic-gate int i; 661*0Sstevel@tonic-gate 662*0Sstevel@tonic-gate rw_enter(&sctp_g_ills_lock, RW_READER); 663*0Sstevel@tonic-gate rw_enter(&sctp_g_ipifs_lock, RW_READER); 664*0Sstevel@tonic-gate 665*0Sstevel@tonic-gate index = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(f_ill)); 666*0Sstevel@tonic-gate fsctp_ill = list_head(&sctp_g_ills[index].sctp_ill_list); 667*0Sstevel@tonic-gate for (i = 0; i < sctp_g_ills[index].ill_count; i++) { 668*0Sstevel@tonic-gate if (fsctp_ill->sctp_ill_index == SCTP_ILL_TO_PHYINDEX(f_ill)) 669*0Sstevel@tonic-gate break; 670*0Sstevel@tonic-gate fsctp_ill = list_next(&sctp_g_ills[index].sctp_ill_list, 671*0Sstevel@tonic-gate fsctp_ill); 672*0Sstevel@tonic-gate } 673*0Sstevel@tonic-gate 674*0Sstevel@tonic-gate index = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(t_ill)); 675*0Sstevel@tonic-gate tsctp_ill = list_head(&sctp_g_ills[index].sctp_ill_list); 676*0Sstevel@tonic-gate for (i = 0; i < sctp_g_ills[index].ill_count; i++) { 677*0Sstevel@tonic-gate if (tsctp_ill->sctp_ill_index == SCTP_ILL_TO_PHYINDEX(t_ill)) 678*0Sstevel@tonic-gate break; 679*0Sstevel@tonic-gate tsctp_ill = list_next(&sctp_g_ills[index].sctp_ill_list, 680*0Sstevel@tonic-gate tsctp_ill); 681*0Sstevel@tonic-gate } 682*0Sstevel@tonic-gate 683*0Sstevel@tonic-gate index = SCTP_IPIF_HASH_FN(ipif->ipif_seqid); 684*0Sstevel@tonic-gate sctp_ipif = list_head(&sctp_g_ipifs[index].sctp_ipif_list); 685*0Sstevel@tonic-gate for (i = 0; i < sctp_g_ipifs[index].ipif_count; i++) { 686*0Sstevel@tonic-gate if (sctp_ipif->sctp_ipif_id == ipif->ipif_seqid) 687*0Sstevel@tonic-gate break; 688*0Sstevel@tonic-gate sctp_ipif = list_next(&sctp_g_ipifs[index].sctp_ipif_list, 689*0Sstevel@tonic-gate sctp_ipif); 690*0Sstevel@tonic-gate } 691*0Sstevel@tonic-gate /* Should be an ASSERT? */ 692*0Sstevel@tonic-gate if (fsctp_ill == NULL || tsctp_ill == NULL || sctp_ipif == NULL) { 693*0Sstevel@tonic-gate ip1dbg(("sctp_move_ipif: error moving ipif %p from %p to %p\n", 694*0Sstevel@tonic-gate (void *)ipif, (void *)f_ill, (void *)t_ill)); 695*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 696*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 697*0Sstevel@tonic-gate return; 698*0Sstevel@tonic-gate } 699*0Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_WRITER); 700*0Sstevel@tonic-gate ASSERT(sctp_ipif->sctp_ipif_ill == fsctp_ill); 701*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_ill = tsctp_ill; 702*0Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 703*0Sstevel@tonic-gate (void) atomic_add_32_nv(&fsctp_ill->sctp_ill_ipifcnt, -1); 704*0Sstevel@tonic-gate atomic_add_32(&tsctp_ill->sctp_ill_ipifcnt, 1); 705*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 706*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 707*0Sstevel@tonic-gate } 708*0Sstevel@tonic-gate 709*0Sstevel@tonic-gate /* Insert, Remove, Mark up or Mark down the ipif */ 710*0Sstevel@tonic-gate void 711*0Sstevel@tonic-gate sctp_update_ipif(ipif_t *ipif, int op) 712*0Sstevel@tonic-gate { 713*0Sstevel@tonic-gate ill_t *ill = ipif->ipif_ill; 714*0Sstevel@tonic-gate int i; 715*0Sstevel@tonic-gate sctp_ill_t *sctp_ill; 716*0Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 717*0Sstevel@tonic-gate uint_t ill_index; 718*0Sstevel@tonic-gate uint_t ipif_index; 719*0Sstevel@tonic-gate 720*0Sstevel@tonic-gate ip2dbg(("sctp_update_ipif: %s %d\n", ill->ill_name, ipif->ipif_seqid)); 721*0Sstevel@tonic-gate 722*0Sstevel@tonic-gate rw_enter(&sctp_g_ills_lock, RW_READER); 723*0Sstevel@tonic-gate rw_enter(&sctp_g_ipifs_lock, RW_WRITER); 724*0Sstevel@tonic-gate 725*0Sstevel@tonic-gate ill_index = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(ill)); 726*0Sstevel@tonic-gate sctp_ill = list_head(&sctp_g_ills[ill_index].sctp_ill_list); 727*0Sstevel@tonic-gate for (i = 0; i < sctp_g_ills[ill_index].ill_count; i++) { 728*0Sstevel@tonic-gate if (sctp_ill->sctp_ill_index == SCTP_ILL_TO_PHYINDEX(ill)) 729*0Sstevel@tonic-gate break; 730*0Sstevel@tonic-gate sctp_ill = list_next(&sctp_g_ills[ill_index].sctp_ill_list, 731*0Sstevel@tonic-gate sctp_ill); 732*0Sstevel@tonic-gate } 733*0Sstevel@tonic-gate if (sctp_ill == NULL) { 734*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 735*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 736*0Sstevel@tonic-gate return; 737*0Sstevel@tonic-gate } 738*0Sstevel@tonic-gate 739*0Sstevel@tonic-gate ipif_index = SCTP_IPIF_HASH_FN(ipif->ipif_seqid); 740*0Sstevel@tonic-gate sctp_ipif = list_head(&sctp_g_ipifs[ipif_index].sctp_ipif_list); 741*0Sstevel@tonic-gate for (i = 0; i < sctp_g_ipifs[ipif_index].ipif_count; i++) { 742*0Sstevel@tonic-gate if (sctp_ipif->sctp_ipif_id == ipif->ipif_seqid) 743*0Sstevel@tonic-gate break; 744*0Sstevel@tonic-gate sctp_ipif = list_next(&sctp_g_ipifs[ipif_index].sctp_ipif_list, 745*0Sstevel@tonic-gate sctp_ipif); 746*0Sstevel@tonic-gate } 747*0Sstevel@tonic-gate if (op != SCTP_IPIF_INSERT && sctp_ipif == NULL) { 748*0Sstevel@tonic-gate ip1dbg(("sctp_update_ipif: null sctp_ipif for %d\n", op)); 749*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 750*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 751*0Sstevel@tonic-gate return; 752*0Sstevel@tonic-gate } 753*0Sstevel@tonic-gate #ifdef DEBUG 754*0Sstevel@tonic-gate if (sctp_ipif != NULL) 755*0Sstevel@tonic-gate ASSERT(sctp_ill == sctp_ipif->sctp_ipif_ill); 756*0Sstevel@tonic-gate #endif 757*0Sstevel@tonic-gate switch (op) { 758*0Sstevel@tonic-gate case SCTP_IPIF_INSERT: 759*0Sstevel@tonic-gate if (sctp_ipif != NULL) { 760*0Sstevel@tonic-gate if (sctp_ipif->sctp_ipif_state == SCTP_IPIFS_CONDEMNED) 761*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_state = 0; 762*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 763*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 764*0Sstevel@tonic-gate return; 765*0Sstevel@tonic-gate } 766*0Sstevel@tonic-gate sctp_ipif = kmem_zalloc(sizeof (sctp_ipif_t), KM_NOSLEEP); 767*0Sstevel@tonic-gate /* Try again? */ 768*0Sstevel@tonic-gate if (sctp_ipif == NULL) { 769*0Sstevel@tonic-gate ip1dbg(("sctp_ipif_insert: mem failure..\n")); 770*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 771*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 772*0Sstevel@tonic-gate return; 773*0Sstevel@tonic-gate } 774*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_id = ipif->ipif_seqid; 775*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_ill = sctp_ill; 776*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_state = SCTP_IPIFS_DOWN; 777*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_mtu = ipif->ipif_mtu; 778*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_saddr = ipif->ipif_v6lcl_addr; 779*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_zoneid = ipif->ipif_zoneid; 780*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_isv6 = ill->ill_isv6; 781*0Sstevel@tonic-gate rw_init(&sctp_ipif->sctp_ipif_lock, NULL, RW_DEFAULT, NULL); 782*0Sstevel@tonic-gate list_insert_tail(&sctp_g_ipifs[ipif_index].sctp_ipif_list, 783*0Sstevel@tonic-gate (void *)sctp_ipif); 784*0Sstevel@tonic-gate sctp_g_ipifs[ipif_index].ipif_count++; 785*0Sstevel@tonic-gate sctp_g_ipifs_count++; 786*0Sstevel@tonic-gate atomic_add_32(&sctp_ill->sctp_ill_ipifcnt, 1); 787*0Sstevel@tonic-gate 788*0Sstevel@tonic-gate break; 789*0Sstevel@tonic-gate 790*0Sstevel@tonic-gate case SCTP_IPIF_REMOVE: 791*0Sstevel@tonic-gate { 792*0Sstevel@tonic-gate list_t *ipif_list; 793*0Sstevel@tonic-gate list_t *ill_list; 794*0Sstevel@tonic-gate 795*0Sstevel@tonic-gate ill_list = &sctp_g_ills[ill_index].sctp_ill_list; 796*0Sstevel@tonic-gate ipif_list = &sctp_g_ipifs[ipif_index].sctp_ipif_list; 797*0Sstevel@tonic-gate if (sctp_ipif->sctp_ipif_refcnt != 0) { 798*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_state = SCTP_IPIFS_CONDEMNED; 799*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 800*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 801*0Sstevel@tonic-gate return; 802*0Sstevel@tonic-gate } 803*0Sstevel@tonic-gate list_remove(ipif_list, (void *)sctp_ipif); 804*0Sstevel@tonic-gate sctp_g_ipifs[ipif_index].ipif_count--; 805*0Sstevel@tonic-gate sctp_g_ipifs_count--; 806*0Sstevel@tonic-gate rw_destroy(&sctp_ipif->sctp_ipif_lock); 807*0Sstevel@tonic-gate kmem_free(sctp_ipif, sizeof (sctp_ipif_t)); 808*0Sstevel@tonic-gate (void) atomic_add_32_nv(&sctp_ill->sctp_ill_ipifcnt, -1); 809*0Sstevel@tonic-gate if (rw_tryupgrade(&sctp_g_ills_lock) != 0) { 810*0Sstevel@tonic-gate rw_downgrade(&sctp_g_ipifs_lock); 811*0Sstevel@tonic-gate if (sctp_ill->sctp_ill_ipifcnt == 0 && 812*0Sstevel@tonic-gate sctp_ill->sctp_ill_state == SCTP_ILLS_CONDEMNED) { 813*0Sstevel@tonic-gate list_remove(ill_list, (void *)sctp_ill); 814*0Sstevel@tonic-gate sctp_ills_count--; 815*0Sstevel@tonic-gate sctp_g_ills[ill_index].ill_count--; 816*0Sstevel@tonic-gate kmem_free(sctp_ill->sctp_ill_name, 817*0Sstevel@tonic-gate sctp_ill->sctp_ill_name_length); 818*0Sstevel@tonic-gate kmem_free(sctp_ill, sizeof (sctp_ill_t)); 819*0Sstevel@tonic-gate } 820*0Sstevel@tonic-gate } 821*0Sstevel@tonic-gate break; 822*0Sstevel@tonic-gate } 823*0Sstevel@tonic-gate 824*0Sstevel@tonic-gate case SCTP_IPIF_UP: 825*0Sstevel@tonic-gate 826*0Sstevel@tonic-gate rw_downgrade(&sctp_g_ipifs_lock); 827*0Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_WRITER); 828*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_state = SCTP_IPIFS_UP; 829*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_saddr = ipif->ipif_v6lcl_addr; 830*0Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 831*0Sstevel@tonic-gate 832*0Sstevel@tonic-gate break; 833*0Sstevel@tonic-gate 834*0Sstevel@tonic-gate case SCTP_IPIF_UPDATE: 835*0Sstevel@tonic-gate 836*0Sstevel@tonic-gate rw_downgrade(&sctp_g_ipifs_lock); 837*0Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_WRITER); 838*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_mtu = ipif->ipif_mtu; 839*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_saddr = ipif->ipif_v6lcl_addr; 840*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_zoneid = ipif->ipif_zoneid; 841*0Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 842*0Sstevel@tonic-gate 843*0Sstevel@tonic-gate break; 844*0Sstevel@tonic-gate 845*0Sstevel@tonic-gate case SCTP_IPIF_DOWN: 846*0Sstevel@tonic-gate 847*0Sstevel@tonic-gate rw_downgrade(&sctp_g_ipifs_lock); 848*0Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_WRITER); 849*0Sstevel@tonic-gate sctp_ipif->sctp_ipif_state = SCTP_IPIFS_DOWN; 850*0Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 851*0Sstevel@tonic-gate 852*0Sstevel@tonic-gate break; 853*0Sstevel@tonic-gate } 854*0Sstevel@tonic-gate rw_exit(&sctp_g_ipifs_lock); 855*0Sstevel@tonic-gate rw_exit(&sctp_g_ills_lock); 856*0Sstevel@tonic-gate } 857*0Sstevel@tonic-gate 858*0Sstevel@tonic-gate /* 859*0Sstevel@tonic-gate * 860*0Sstevel@tonic-gate * 861*0Sstevel@tonic-gate * SCTP source address list manipulaton, locking not used (except for 862*0Sstevel@tonic-gate * sctp locking by the caller. 863*0Sstevel@tonic-gate * 864*0Sstevel@tonic-gate * 865*0Sstevel@tonic-gate */ 866*0Sstevel@tonic-gate 867*0Sstevel@tonic-gate /* Remove a specific saddr from the list */ 868*0Sstevel@tonic-gate void 869*0Sstevel@tonic-gate sctp_del_saddr(sctp_t *sctp, sctp_saddr_ipif_t *sp) 870*0Sstevel@tonic-gate { 871*0Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 872*0Sstevel@tonic-gate mutex_enter(&sctp->sctp_conn_tfp->tf_lock); 873*0Sstevel@tonic-gate 874*0Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 875*0Sstevel@tonic-gate mutex_enter(&sctp->sctp_listen_tfp->tf_lock); 876*0Sstevel@tonic-gate 877*0Sstevel@tonic-gate sctp_ipif_hash_remove(sctp, sp->saddr_ipifp); 878*0Sstevel@tonic-gate 879*0Sstevel@tonic-gate if (sctp->sctp_bound_to_all) 880*0Sstevel@tonic-gate sctp->sctp_bound_to_all = 0; 881*0Sstevel@tonic-gate 882*0Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 883*0Sstevel@tonic-gate mutex_exit(&sctp->sctp_conn_tfp->tf_lock); 884*0Sstevel@tonic-gate 885*0Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 886*0Sstevel@tonic-gate mutex_exit(&sctp->sctp_listen_tfp->tf_lock); 887*0Sstevel@tonic-gate } 888*0Sstevel@tonic-gate 889*0Sstevel@tonic-gate /* 890*0Sstevel@tonic-gate * Delete source address from the existing list. No error checking done here 891*0Sstevel@tonic-gate * Called with no locks held. 892*0Sstevel@tonic-gate */ 893*0Sstevel@tonic-gate void 894*0Sstevel@tonic-gate sctp_del_saddr_list(sctp_t *sctp, const void *addrs, int addcnt, 895*0Sstevel@tonic-gate boolean_t fanout_locked) 896*0Sstevel@tonic-gate { 897*0Sstevel@tonic-gate struct sockaddr_in *sin4; 898*0Sstevel@tonic-gate struct sockaddr_in6 *sin6; 899*0Sstevel@tonic-gate int cnt; 900*0Sstevel@tonic-gate in6_addr_t addr; 901*0Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 902*0Sstevel@tonic-gate 903*0Sstevel@tonic-gate ASSERT(sctp->sctp_nsaddrs > addcnt); 904*0Sstevel@tonic-gate 905*0Sstevel@tonic-gate if (!fanout_locked) { 906*0Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 907*0Sstevel@tonic-gate mutex_enter(&sctp->sctp_conn_tfp->tf_lock); 908*0Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 909*0Sstevel@tonic-gate mutex_enter(&sctp->sctp_listen_tfp->tf_lock); 910*0Sstevel@tonic-gate } 911*0Sstevel@tonic-gate 912*0Sstevel@tonic-gate for (cnt = 0; cnt < addcnt; cnt++) { 913*0Sstevel@tonic-gate switch (sctp->sctp_family) { 914*0Sstevel@tonic-gate case AF_INET: 915*0Sstevel@tonic-gate sin4 = (struct sockaddr_in *)addrs + cnt; 916*0Sstevel@tonic-gate IN6_INADDR_TO_V4MAPPED(&sin4->sin_addr, &addr); 917*0Sstevel@tonic-gate break; 918*0Sstevel@tonic-gate 919*0Sstevel@tonic-gate case AF_INET6: 920*0Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)addrs + cnt; 921*0Sstevel@tonic-gate addr = sin6->sin6_addr; 922*0Sstevel@tonic-gate break; 923*0Sstevel@tonic-gate } 924*0Sstevel@tonic-gate sctp_ipif = sctp_lookup_ipif_addr(&addr, B_FALSE, 925*0Sstevel@tonic-gate sctp->sctp_zoneid); 926*0Sstevel@tonic-gate ASSERT(sctp_ipif != NULL); 927*0Sstevel@tonic-gate sctp_ipif_hash_remove(sctp, sctp_ipif); 928*0Sstevel@tonic-gate } 929*0Sstevel@tonic-gate if (sctp->sctp_bound_to_all) 930*0Sstevel@tonic-gate sctp->sctp_bound_to_all = 0; 931*0Sstevel@tonic-gate 932*0Sstevel@tonic-gate if (!fanout_locked) { 933*0Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 934*0Sstevel@tonic-gate mutex_exit(&sctp->sctp_conn_tfp->tf_lock); 935*0Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 936*0Sstevel@tonic-gate mutex_exit(&sctp->sctp_listen_tfp->tf_lock); 937*0Sstevel@tonic-gate } 938*0Sstevel@tonic-gate } 939*0Sstevel@tonic-gate 940*0Sstevel@tonic-gate /* 941*0Sstevel@tonic-gate * Given an address get the corresponding entry from the list 942*0Sstevel@tonic-gate * Called with no locks held. 943*0Sstevel@tonic-gate */ 944*0Sstevel@tonic-gate sctp_saddr_ipif_t * 945*0Sstevel@tonic-gate sctp_saddr_lookup(sctp_t *sctp, in6_addr_t *addr) 946*0Sstevel@tonic-gate { 947*0Sstevel@tonic-gate sctp_saddr_ipif_t *saddr_ipifs; 948*0Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 949*0Sstevel@tonic-gate 950*0Sstevel@tonic-gate sctp_ipif = sctp_lookup_ipif_addr(addr, B_FALSE, sctp->sctp_zoneid); 951*0Sstevel@tonic-gate if (sctp_ipif == NULL) 952*0Sstevel@tonic-gate return (NULL); 953*0Sstevel@tonic-gate 954*0Sstevel@tonic-gate saddr_ipifs = sctp_ipif_lookup(sctp, sctp_ipif->sctp_ipif_id); 955*0Sstevel@tonic-gate return (saddr_ipifs); 956*0Sstevel@tonic-gate } 957*0Sstevel@tonic-gate 958*0Sstevel@tonic-gate /* Get the first valid address from the list. Called with no locks held */ 959*0Sstevel@tonic-gate in6_addr_t 960*0Sstevel@tonic-gate sctp_get_valid_addr(sctp_t *sctp, boolean_t isv6) 961*0Sstevel@tonic-gate { 962*0Sstevel@tonic-gate int i; 963*0Sstevel@tonic-gate int l; 964*0Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 965*0Sstevel@tonic-gate int scanned = 0; 966*0Sstevel@tonic-gate in6_addr_t addr; 967*0Sstevel@tonic-gate 968*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 969*0Sstevel@tonic-gate if (sctp->sctp_saddrs[i].ipif_count == 0) 970*0Sstevel@tonic-gate continue; 971*0Sstevel@tonic-gate obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list); 972*0Sstevel@tonic-gate for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) { 973*0Sstevel@tonic-gate sctp_ipif_t *ipif; 974*0Sstevel@tonic-gate sctp_ill_t *ill; 975*0Sstevel@tonic-gate 976*0Sstevel@tonic-gate ipif = obj->saddr_ipifp; 977*0Sstevel@tonic-gate ill = ipif->sctp_ipif_ill; 978*0Sstevel@tonic-gate if (!obj->saddr_ipif_dontsrc && 979*0Sstevel@tonic-gate ipif->sctp_ipif_isv6 == isv6 && 980*0Sstevel@tonic-gate ipif->sctp_ipif_state == SCTP_IPIFS_UP && 981*0Sstevel@tonic-gate !(ill->sctp_ill_flags & PHYI_LOOPBACK)) { 982*0Sstevel@tonic-gate return (ipif->sctp_ipif_saddr); 983*0Sstevel@tonic-gate } 984*0Sstevel@tonic-gate scanned++; 985*0Sstevel@tonic-gate if (scanned >= sctp->sctp_nsaddrs) 986*0Sstevel@tonic-gate goto got_none; 987*0Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i].sctp_ipif_list, 988*0Sstevel@tonic-gate obj); 989*0Sstevel@tonic-gate } 990*0Sstevel@tonic-gate } 991*0Sstevel@tonic-gate got_none: 992*0Sstevel@tonic-gate /* Need to double check this */ 993*0Sstevel@tonic-gate if (isv6 == B_TRUE) 994*0Sstevel@tonic-gate addr = ipv6_all_zeros; 995*0Sstevel@tonic-gate else 996*0Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(0, &addr); 997*0Sstevel@tonic-gate 998*0Sstevel@tonic-gate return (addr); 999*0Sstevel@tonic-gate } 1000*0Sstevel@tonic-gate 1001*0Sstevel@tonic-gate /* Given a list, get the combined lengths. Called with no locks held. */ 1002*0Sstevel@tonic-gate size_t 1003*0Sstevel@tonic-gate sctp_addr_len(sctp_t *sctp, int af) 1004*0Sstevel@tonic-gate { 1005*0Sstevel@tonic-gate int i; 1006*0Sstevel@tonic-gate int l; 1007*0Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 1008*0Sstevel@tonic-gate size_t paramlen = 0; 1009*0Sstevel@tonic-gate int scanned = 0; 1010*0Sstevel@tonic-gate 1011*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 1012*0Sstevel@tonic-gate if (sctp->sctp_saddrs[i].ipif_count == 0) 1013*0Sstevel@tonic-gate continue; 1014*0Sstevel@tonic-gate obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list); 1015*0Sstevel@tonic-gate for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) { 1016*0Sstevel@tonic-gate in6_addr_t addr; 1017*0Sstevel@tonic-gate sctp_ipif_t *ipif; 1018*0Sstevel@tonic-gate sctp_ill_t *ill; 1019*0Sstevel@tonic-gate 1020*0Sstevel@tonic-gate ipif = obj->saddr_ipifp; 1021*0Sstevel@tonic-gate ill = ipif->sctp_ipif_ill; 1022*0Sstevel@tonic-gate scanned++; 1023*0Sstevel@tonic-gate if ((ipif->sctp_ipif_state != SCTP_IPIFS_UP) || 1024*0Sstevel@tonic-gate (ill->sctp_ill_flags & PHYI_LOOPBACK)) { 1025*0Sstevel@tonic-gate if (scanned >= sctp->sctp_nsaddrs) 1026*0Sstevel@tonic-gate return (paramlen); 1027*0Sstevel@tonic-gate 1028*0Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i]. 1029*0Sstevel@tonic-gate sctp_ipif_list, obj); 1030*0Sstevel@tonic-gate continue; 1031*0Sstevel@tonic-gate } 1032*0Sstevel@tonic-gate addr = ipif->sctp_ipif_saddr; 1033*0Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&addr)) { 1034*0Sstevel@tonic-gate /* 1035*0Sstevel@tonic-gate * Only send v4 address if the other side 1036*0Sstevel@tonic-gate * supports it. 1037*0Sstevel@tonic-gate */ 1038*0Sstevel@tonic-gate if (af & PARM_SUPP_V4) 1039*0Sstevel@tonic-gate paramlen += PARM_ADDR4_LEN; 1040*0Sstevel@tonic-gate } else if (!IN6_IS_ADDR_LINKLOCAL(&addr) && 1041*0Sstevel@tonic-gate (af & PARM_SUPP_V6)) { 1042*0Sstevel@tonic-gate paramlen += PARM_ADDR6_LEN; 1043*0Sstevel@tonic-gate } 1044*0Sstevel@tonic-gate if (scanned >= sctp->sctp_nsaddrs) 1045*0Sstevel@tonic-gate return (paramlen); 1046*0Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i].sctp_ipif_list, 1047*0Sstevel@tonic-gate obj); 1048*0Sstevel@tonic-gate } 1049*0Sstevel@tonic-gate } 1050*0Sstevel@tonic-gate return (paramlen); 1051*0Sstevel@tonic-gate } 1052*0Sstevel@tonic-gate 1053*0Sstevel@tonic-gate /* 1054*0Sstevel@tonic-gate * Return the list of local addresses of an association. The parameter 1055*0Sstevel@tonic-gate * myaddrs is supposed to be either (struct sockaddr_in *) or (struct 1056*0Sstevel@tonic-gate * sockaddr_in6 *) depending on the address family. 1057*0Sstevel@tonic-gate */ 1058*0Sstevel@tonic-gate int 1059*0Sstevel@tonic-gate sctp_getmyaddrs(void *conn, void *myaddrs, int *addrcnt) 1060*0Sstevel@tonic-gate { 1061*0Sstevel@tonic-gate int i; 1062*0Sstevel@tonic-gate int l; 1063*0Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 1064*0Sstevel@tonic-gate sctp_t *sctp = (sctp_t *)conn; 1065*0Sstevel@tonic-gate int family = sctp->sctp_family; 1066*0Sstevel@tonic-gate int max = *addrcnt; 1067*0Sstevel@tonic-gate size_t added = 0; 1068*0Sstevel@tonic-gate struct sockaddr_in6 *sin6; 1069*0Sstevel@tonic-gate struct sockaddr_in *sin4; 1070*0Sstevel@tonic-gate int scanned = 0; 1071*0Sstevel@tonic-gate boolean_t skip_lback = B_FALSE; 1072*0Sstevel@tonic-gate 1073*0Sstevel@tonic-gate if (sctp->sctp_nsaddrs == 0) 1074*0Sstevel@tonic-gate return (EINVAL); 1075*0Sstevel@tonic-gate 1076*0Sstevel@tonic-gate /* Skip loopback addresses for non-loopback assoc. */ 1077*0Sstevel@tonic-gate if (sctp->sctp_state >= SCTPS_ESTABLISHED && !sctp->sctp_loopback) 1078*0Sstevel@tonic-gate skip_lback = B_TRUE; 1079*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 1080*0Sstevel@tonic-gate if (sctp->sctp_saddrs[i].ipif_count == 0) 1081*0Sstevel@tonic-gate continue; 1082*0Sstevel@tonic-gate obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list); 1083*0Sstevel@tonic-gate for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) { 1084*0Sstevel@tonic-gate sctp_ipif_t *ipif = obj->saddr_ipifp; 1085*0Sstevel@tonic-gate sctp_ill_t *ill = ipif->sctp_ipif_ill; 1086*0Sstevel@tonic-gate in6_addr_t addr = ipif->sctp_ipif_saddr; 1087*0Sstevel@tonic-gate 1088*0Sstevel@tonic-gate scanned++; 1089*0Sstevel@tonic-gate if ((ipif->sctp_ipif_state == SCTP_IPIFS_CONDEMNED) || 1090*0Sstevel@tonic-gate obj->saddr_ipif_dontsrc || 1091*0Sstevel@tonic-gate ((ill->sctp_ill_flags & PHYI_LOOPBACK) && 1092*0Sstevel@tonic-gate skip_lback)) { 1093*0Sstevel@tonic-gate if (scanned >= sctp->sctp_nsaddrs) 1094*0Sstevel@tonic-gate goto done; 1095*0Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i]. 1096*0Sstevel@tonic-gate sctp_ipif_list, obj); 1097*0Sstevel@tonic-gate continue; 1098*0Sstevel@tonic-gate } 1099*0Sstevel@tonic-gate switch (family) { 1100*0Sstevel@tonic-gate case AF_INET: 1101*0Sstevel@tonic-gate sin4 = (struct sockaddr_in *)myaddrs + added; 1102*0Sstevel@tonic-gate sin4->sin_family = AF_INET; 1103*0Sstevel@tonic-gate sin4->sin_port = sctp->sctp_lport; 1104*0Sstevel@tonic-gate IN6_V4MAPPED_TO_INADDR(&addr, &sin4->sin_addr); 1105*0Sstevel@tonic-gate break; 1106*0Sstevel@tonic-gate 1107*0Sstevel@tonic-gate case AF_INET6: 1108*0Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)myaddrs + added; 1109*0Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 1110*0Sstevel@tonic-gate sin6->sin6_port = sctp->sctp_lport; 1111*0Sstevel@tonic-gate sin6->sin6_addr = addr; 1112*0Sstevel@tonic-gate break; 1113*0Sstevel@tonic-gate } 1114*0Sstevel@tonic-gate added++; 1115*0Sstevel@tonic-gate if (added >= max || scanned >= sctp->sctp_nsaddrs) 1116*0Sstevel@tonic-gate goto done; 1117*0Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i].sctp_ipif_list, 1118*0Sstevel@tonic-gate obj); 1119*0Sstevel@tonic-gate } 1120*0Sstevel@tonic-gate } 1121*0Sstevel@tonic-gate done: 1122*0Sstevel@tonic-gate *addrcnt = added; 1123*0Sstevel@tonic-gate return (0); 1124*0Sstevel@tonic-gate } 1125*0Sstevel@tonic-gate 1126*0Sstevel@tonic-gate /* 1127*0Sstevel@tonic-gate * Given a list construct the list of addresses in p. Called with no locks 1128*0Sstevel@tonic-gate * held 1129*0Sstevel@tonic-gate */ 1130*0Sstevel@tonic-gate size_t 1131*0Sstevel@tonic-gate sctp_addr_val(sctp_t *sctp, int supp_af, uchar_t *p) 1132*0Sstevel@tonic-gate { 1133*0Sstevel@tonic-gate int i; 1134*0Sstevel@tonic-gate int l; 1135*0Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 1136*0Sstevel@tonic-gate size_t added = 0; 1137*0Sstevel@tonic-gate sctp_parm_hdr_t *hdr; 1138*0Sstevel@tonic-gate int scanned = 0; 1139*0Sstevel@tonic-gate 1140*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 1141*0Sstevel@tonic-gate if (sctp->sctp_saddrs[i].ipif_count == 0) 1142*0Sstevel@tonic-gate continue; 1143*0Sstevel@tonic-gate obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list); 1144*0Sstevel@tonic-gate for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) { 1145*0Sstevel@tonic-gate in6_addr_t addr; 1146*0Sstevel@tonic-gate sctp_ipif_t *ipif; 1147*0Sstevel@tonic-gate sctp_ill_t *ill; 1148*0Sstevel@tonic-gate 1149*0Sstevel@tonic-gate ipif = obj->saddr_ipifp; 1150*0Sstevel@tonic-gate ill = ipif->sctp_ipif_ill; 1151*0Sstevel@tonic-gate scanned++; 1152*0Sstevel@tonic-gate if ((ipif->sctp_ipif_state != SCTP_IPIFS_UP) || 1153*0Sstevel@tonic-gate (ill->sctp_ill_flags & PHYI_LOOPBACK)) { 1154*0Sstevel@tonic-gate if (scanned >= sctp->sctp_nsaddrs) 1155*0Sstevel@tonic-gate return (added); 1156*0Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i]. 1157*0Sstevel@tonic-gate sctp_ipif_list, obj); 1158*0Sstevel@tonic-gate continue; 1159*0Sstevel@tonic-gate } 1160*0Sstevel@tonic-gate hdr = (sctp_parm_hdr_t *)(p + added); 1161*0Sstevel@tonic-gate addr = ipif->sctp_ipif_saddr; 1162*0Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&addr)) { 1163*0Sstevel@tonic-gate struct in_addr *v4; 1164*0Sstevel@tonic-gate 1165*0Sstevel@tonic-gate /* The other side does not support v4 */ 1166*0Sstevel@tonic-gate if (!(supp_af & PARM_SUPP_V4)) 1167*0Sstevel@tonic-gate continue; 1168*0Sstevel@tonic-gate 1169*0Sstevel@tonic-gate hdr->sph_type = htons(PARM_ADDR4); 1170*0Sstevel@tonic-gate hdr->sph_len = htons(PARM_ADDR4_LEN); 1171*0Sstevel@tonic-gate v4 = (struct in_addr *)(hdr + 1); 1172*0Sstevel@tonic-gate IN6_V4MAPPED_TO_INADDR(&addr, v4); 1173*0Sstevel@tonic-gate added += PARM_ADDR4_LEN; 1174*0Sstevel@tonic-gate } else if (!IN6_IS_ADDR_LINKLOCAL(&addr) && 1175*0Sstevel@tonic-gate (supp_af & PARM_SUPP_V6)) { 1176*0Sstevel@tonic-gate hdr->sph_type = htons(PARM_ADDR6); 1177*0Sstevel@tonic-gate hdr->sph_len = htons(PARM_ADDR6_LEN); 1178*0Sstevel@tonic-gate bcopy(&addr, hdr + 1, sizeof (addr)); 1179*0Sstevel@tonic-gate added += PARM_ADDR6_LEN; 1180*0Sstevel@tonic-gate } 1181*0Sstevel@tonic-gate if (scanned >= sctp->sctp_nsaddrs) 1182*0Sstevel@tonic-gate return (added); 1183*0Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i].sctp_ipif_list, 1184*0Sstevel@tonic-gate obj); 1185*0Sstevel@tonic-gate } 1186*0Sstevel@tonic-gate } 1187*0Sstevel@tonic-gate return (added); 1188*0Sstevel@tonic-gate } 1189*0Sstevel@tonic-gate 1190*0Sstevel@tonic-gate 1191*0Sstevel@tonic-gate /* Initialize the SCTP ILL list and lock */ 1192*0Sstevel@tonic-gate void 1193*0Sstevel@tonic-gate sctp_saddr_init() 1194*0Sstevel@tonic-gate { 1195*0Sstevel@tonic-gate int i; 1196*0Sstevel@tonic-gate 1197*0Sstevel@tonic-gate rw_init(&sctp_g_ills_lock, NULL, RW_DEFAULT, NULL); 1198*0Sstevel@tonic-gate rw_init(&sctp_g_ipifs_lock, NULL, RW_DEFAULT, NULL); 1199*0Sstevel@tonic-gate 1200*0Sstevel@tonic-gate for (i = 0; i < SCTP_ILL_HASH; i++) { 1201*0Sstevel@tonic-gate sctp_g_ills[i].ill_count = 0; 1202*0Sstevel@tonic-gate list_create(&sctp_g_ills[i].sctp_ill_list, sizeof (sctp_ill_t), 1203*0Sstevel@tonic-gate offsetof(sctp_ill_t, sctp_ills)); 1204*0Sstevel@tonic-gate } 1205*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 1206*0Sstevel@tonic-gate sctp_g_ipifs[i].ipif_count = 0; 1207*0Sstevel@tonic-gate list_create(&sctp_g_ipifs[i].sctp_ipif_list, 1208*0Sstevel@tonic-gate sizeof (sctp_ipif_t), offsetof(sctp_ipif_t, sctp_ipifs)); 1209*0Sstevel@tonic-gate } 1210*0Sstevel@tonic-gate } 1211*0Sstevel@tonic-gate 1212*0Sstevel@tonic-gate void 1213*0Sstevel@tonic-gate sctp_saddr_fini() 1214*0Sstevel@tonic-gate { 1215*0Sstevel@tonic-gate int i; 1216*0Sstevel@tonic-gate 1217*0Sstevel@tonic-gate rw_destroy(&sctp_g_ills_lock); 1218*0Sstevel@tonic-gate rw_destroy(&sctp_g_ipifs_lock); 1219*0Sstevel@tonic-gate ASSERT(sctp_ills_count == 0 && sctp_g_ipifs_count == 0); 1220*0Sstevel@tonic-gate for (i = 0; i < SCTP_ILL_HASH; i++) 1221*0Sstevel@tonic-gate list_destroy(&sctp_g_ills[i].sctp_ill_list); 1222*0Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) 1223*0Sstevel@tonic-gate list_destroy(&sctp_g_ipifs[i].sctp_ipif_list); 1224*0Sstevel@tonic-gate } 1225