1ab25eeb5Syz /* 2ab25eeb5Syz * Copyright (C) 1993-2001, 2003 by Darren Reed. 3ab25eeb5Syz * 4ab25eeb5Syz * See the IPFILTER.LICENCE file for details on licencing. 5ab25eeb5Syz * 6*7ddc9b1aSDarren Reed * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 7ab25eeb5Syz * Use is subject to license terms. 8ab25eeb5Syz */ 9ab25eeb5Syz /* #pragma ident "@(#)solaris.c 1.12 6/5/96 (C) 1995 Darren Reed"*/ 10ab25eeb5Syz #pragma ident "@(#)$Id: solaris.c,v 2.73.2.6 2005/07/13 21:40:47 darrenr Exp $" 11ab25eeb5Syz 12ab25eeb5Syz #include <sys/systm.h> 13ab25eeb5Syz #include <sys/types.h> 14ab25eeb5Syz #include <sys/param.h> 15ab25eeb5Syz #include <sys/errno.h> 16ab25eeb5Syz #include <sys/uio.h> 17ab25eeb5Syz #include <sys/buf.h> 18ab25eeb5Syz #include <sys/modctl.h> 19ab25eeb5Syz #include <sys/open.h> 20ab25eeb5Syz #include <sys/kmem.h> 21ab25eeb5Syz #include <sys/conf.h> 22ab25eeb5Syz #include <sys/cmn_err.h> 23ab25eeb5Syz #include <sys/stat.h> 24ab25eeb5Syz #include <sys/cred.h> 25ab25eeb5Syz #include <sys/dditypes.h> 26ab25eeb5Syz #include <sys/poll.h> 27ab25eeb5Syz #include <sys/autoconf.h> 28ab25eeb5Syz #include <sys/byteorder.h> 29ab25eeb5Syz #include <sys/socket.h> 30ab25eeb5Syz #include <sys/dlpi.h> 31ab25eeb5Syz #include <sys/stropts.h> 32ab25eeb5Syz #include <sys/kstat.h> 33ab25eeb5Syz #include <sys/sockio.h> 34381a2a9aSdr #include <sys/neti.h> 35381a2a9aSdr #include <sys/hook.h> 36ab25eeb5Syz #include <net/if.h> 37ab25eeb5Syz #if SOLARIS2 >= 6 38ab25eeb5Syz # include <net/if_types.h> 39ab25eeb5Syz #endif 40ab25eeb5Syz #include <net/af.h> 41ab25eeb5Syz #include <net/route.h> 42ab25eeb5Syz #include <netinet/in.h> 43ab25eeb5Syz #include <netinet/in_systm.h> 44ab25eeb5Syz #include <netinet/if_ether.h> 45ab25eeb5Syz #include <netinet/ip.h> 46ab25eeb5Syz #include <netinet/ip_var.h> 47ab25eeb5Syz #include <netinet/tcp.h> 48ab25eeb5Syz #include <netinet/udp.h> 49ab25eeb5Syz #include <netinet/tcpip.h> 50ab25eeb5Syz #include <netinet/ip_icmp.h> 51ab25eeb5Syz #include <sys/ddi.h> 52ab25eeb5Syz #include <sys/sunddi.h> 53ab25eeb5Syz #include "netinet/ip_compat.h" 54ab25eeb5Syz #include "netinet/ipl.h" 55ab25eeb5Syz #include "netinet/ip_fil.h" 56ab25eeb5Syz #include "netinet/ip_nat.h" 57ab25eeb5Syz #include "netinet/ip_frag.h" 58ab25eeb5Syz #include "netinet/ip_auth.h" 59ab25eeb5Syz #include "netinet/ip_state.h" 60f4b3ec61Sdh #include "netinet/ipf_stack.h" 61ab25eeb5Syz 62ab25eeb5Syz extern int iplwrite __P((dev_t, struct uio *, cred_t *)); 63ab25eeb5Syz 64ab25eeb5Syz static int ipf_getinfo __P((dev_info_t *, ddi_info_cmd_t, 65ab25eeb5Syz void *, void **)); 66ab25eeb5Syz #if SOLARIS2 < 10 67ab25eeb5Syz static int ipf_identify __P((dev_info_t *)); 68ab25eeb5Syz #endif 69ab25eeb5Syz static int ipf_attach __P((dev_info_t *, ddi_attach_cmd_t)); 70ab25eeb5Syz static int ipf_detach __P((dev_info_t *, ddi_detach_cmd_t)); 71*7ddc9b1aSDarren Reed static void *ipf_stack_create __P((const netid_t)); 72*7ddc9b1aSDarren Reed static void ipf_stack_destroy __P((const netid_t, void *)); 73f4b3ec61Sdh static int ipf_property_g_update __P((dev_info_t *)); 74ab25eeb5Syz static char *ipf_devfiles[] = { IPL_NAME, IPNAT_NAME, IPSTATE_NAME, 75ab25eeb5Syz IPAUTH_NAME, IPSYNC_NAME, IPSCAN_NAME, 76ab25eeb5Syz IPLOOKUP_NAME, NULL }; 77ab25eeb5Syz 78ab25eeb5Syz 79ab25eeb5Syz static struct cb_ops ipf_cb_ops = { 80ab25eeb5Syz iplopen, 81ab25eeb5Syz iplclose, 82ab25eeb5Syz nodev, /* strategy */ 83ab25eeb5Syz nodev, /* print */ 84ab25eeb5Syz nodev, /* dump */ 85ab25eeb5Syz iplread, 86ab25eeb5Syz iplwrite, /* write */ 87ab25eeb5Syz iplioctl, /* ioctl */ 88ab25eeb5Syz nodev, /* devmap */ 89ab25eeb5Syz nodev, /* mmap */ 90ab25eeb5Syz nodev, /* segmap */ 91ab25eeb5Syz nochpoll, /* poll */ 92ab25eeb5Syz ddi_prop_op, 93ab25eeb5Syz NULL, 94ab25eeb5Syz D_MTSAFE, 95ab25eeb5Syz #if SOLARIS2 > 4 96ab25eeb5Syz CB_REV, 97ab25eeb5Syz nodev, /* aread */ 98ab25eeb5Syz nodev, /* awrite */ 99ab25eeb5Syz #endif 100ab25eeb5Syz }; 101ab25eeb5Syz 102ab25eeb5Syz static struct dev_ops ipf_ops = { 103ab25eeb5Syz DEVO_REV, 104ab25eeb5Syz 0, 105ab25eeb5Syz ipf_getinfo, 106ab25eeb5Syz #if SOLARIS2 >= 10 107ab25eeb5Syz nulldev, 108ab25eeb5Syz #else 109ab25eeb5Syz ipf_identify, 110ab25eeb5Syz #endif 111ab25eeb5Syz nulldev, 112ab25eeb5Syz ipf_attach, 113ab25eeb5Syz ipf_detach, 114ab25eeb5Syz nodev, /* reset */ 115ab25eeb5Syz &ipf_cb_ops, 116ab25eeb5Syz (struct bus_ops *)0 117ab25eeb5Syz }; 118ab25eeb5Syz 119*7ddc9b1aSDarren Reed 120*7ddc9b1aSDarren Reed static net_instance_t *ipfncb = NULL; 121*7ddc9b1aSDarren Reed static ipf_stack_t *ipf_stacks = NULL; 122*7ddc9b1aSDarren Reed static kmutex_t ipf_stack_lock; 123ab25eeb5Syz extern struct mod_ops mod_driverops; 124ab25eeb5Syz static struct modldrv iplmod = { 125ab25eeb5Syz &mod_driverops, IPL_VERSION, &ipf_ops }; 126ab25eeb5Syz static struct modlinkage modlink1 = { MODREV_1, &iplmod, NULL }; 127ab25eeb5Syz 128ab25eeb5Syz #if SOLARIS2 >= 6 129ab25eeb5Syz static size_t hdrsizes[57][2] = { 130ab25eeb5Syz { 0, 0 }, 131ab25eeb5Syz { IFT_OTHER, 0 }, 132ab25eeb5Syz { IFT_1822, 0 }, 133ab25eeb5Syz { IFT_HDH1822, 0 }, 134ab25eeb5Syz { IFT_X25DDN, 0 }, 135ab25eeb5Syz { IFT_X25, 0 }, 136ab25eeb5Syz { IFT_ETHER, 14 }, 137ab25eeb5Syz { IFT_ISO88023, 0 }, 138ab25eeb5Syz { IFT_ISO88024, 0 }, 139ab25eeb5Syz { IFT_ISO88025, 0 }, 140ab25eeb5Syz { IFT_ISO88026, 0 }, 141ab25eeb5Syz { IFT_STARLAN, 0 }, 142ab25eeb5Syz { IFT_P10, 0 }, 143ab25eeb5Syz { IFT_P80, 0 }, 144ab25eeb5Syz { IFT_HY, 0 }, 145ab25eeb5Syz { IFT_FDDI, 24 }, 146ab25eeb5Syz { IFT_LAPB, 0 }, 147ab25eeb5Syz { IFT_SDLC, 0 }, 148ab25eeb5Syz { IFT_T1, 0 }, 149ab25eeb5Syz { IFT_CEPT, 0 }, 150ab25eeb5Syz { IFT_ISDNBASIC, 0 }, 151ab25eeb5Syz { IFT_ISDNPRIMARY, 0 }, 152ab25eeb5Syz { IFT_PTPSERIAL, 0 }, 153ab25eeb5Syz { IFT_PPP, 0 }, 154ab25eeb5Syz { IFT_LOOP, 0 }, 155ab25eeb5Syz { IFT_EON, 0 }, 156ab25eeb5Syz { IFT_XETHER, 0 }, 157ab25eeb5Syz { IFT_NSIP, 0 }, 158ab25eeb5Syz { IFT_SLIP, 0 }, 159ab25eeb5Syz { IFT_ULTRA, 0 }, 160ab25eeb5Syz { IFT_DS3, 0 }, 161ab25eeb5Syz { IFT_SIP, 0 }, 162ab25eeb5Syz { IFT_FRELAY, 0 }, 163ab25eeb5Syz { IFT_RS232, 0 }, 164ab25eeb5Syz { IFT_PARA, 0 }, 165ab25eeb5Syz { IFT_ARCNET, 0 }, 166ab25eeb5Syz { IFT_ARCNETPLUS, 0 }, 167ab25eeb5Syz { IFT_ATM, 0 }, 168ab25eeb5Syz { IFT_MIOX25, 0 }, 169ab25eeb5Syz { IFT_SONET, 0 }, 170ab25eeb5Syz { IFT_X25PLE, 0 }, 171ab25eeb5Syz { IFT_ISO88022LLC, 0 }, 172ab25eeb5Syz { IFT_LOCALTALK, 0 }, 173ab25eeb5Syz { IFT_SMDSDXI, 0 }, 174ab25eeb5Syz { IFT_FRELAYDCE, 0 }, 175ab25eeb5Syz { IFT_V35, 0 }, 176ab25eeb5Syz { IFT_HSSI, 0 }, 177ab25eeb5Syz { IFT_HIPPI, 0 }, 178ab25eeb5Syz { IFT_MODEM, 0 }, 179ab25eeb5Syz { IFT_AAL5, 0 }, 180ab25eeb5Syz { IFT_SONETPATH, 0 }, 181ab25eeb5Syz { IFT_SONETVT, 0 }, 182ab25eeb5Syz { IFT_SMDSICIP, 0 }, 183ab25eeb5Syz { IFT_PROPVIRTUAL, 0 }, 184ab25eeb5Syz { IFT_PROPMUX, 0 }, 185ab25eeb5Syz }; 186ab25eeb5Syz #endif /* SOLARIS2 >= 6 */ 187ab25eeb5Syz 188f4b3ec61Sdh dev_info_t *ipf_dev_info = NULL; 189ab25eeb5Syz 190ab25eeb5Syz static const filter_kstats_t ipf_kstat_tmp = { 191ab25eeb5Syz { "pass", KSTAT_DATA_ULONG }, 192ab25eeb5Syz { "block", KSTAT_DATA_ULONG }, 193ab25eeb5Syz { "nomatch", KSTAT_DATA_ULONG }, 194ab25eeb5Syz { "short", KSTAT_DATA_ULONG }, 195ab25eeb5Syz { "pass, logged", KSTAT_DATA_ULONG }, 196ab25eeb5Syz { "block, logged", KSTAT_DATA_ULONG }, 197ab25eeb5Syz { "nomatch, logged", KSTAT_DATA_ULONG }, 198ab25eeb5Syz { "logged", KSTAT_DATA_ULONG }, 199ab25eeb5Syz { "skip", KSTAT_DATA_ULONG }, 200ab25eeb5Syz { "return sent", KSTAT_DATA_ULONG }, 201ab25eeb5Syz { "acct", KSTAT_DATA_ULONG }, 202ab25eeb5Syz { "bad frag state alloc", KSTAT_DATA_ULONG }, 203ab25eeb5Syz { "new frag state kept", KSTAT_DATA_ULONG }, 204ab25eeb5Syz { "new frag state compl. pkt", KSTAT_DATA_ULONG }, 205ab25eeb5Syz { "bad pkt state alloc", KSTAT_DATA_ULONG }, 206ab25eeb5Syz { "new pkt kept state", KSTAT_DATA_ULONG }, 207ab25eeb5Syz { "cachehit", KSTAT_DATA_ULONG }, 208ab25eeb5Syz { "tcp cksum bad", KSTAT_DATA_ULONG }, 209ab25eeb5Syz {{ "pullup ok", KSTAT_DATA_ULONG }, 210ab25eeb5Syz { "pullup nok", KSTAT_DATA_ULONG }}, 211ab25eeb5Syz { "src != route", KSTAT_DATA_ULONG }, 212ab25eeb5Syz { "ttl invalid", KSTAT_DATA_ULONG }, 213ab25eeb5Syz { "bad ip pkt", KSTAT_DATA_ULONG }, 214ab25eeb5Syz { "ipv6 pkt", KSTAT_DATA_ULONG }, 215ab25eeb5Syz { "dropped:pps ceiling", KSTAT_DATA_ULONG }, 216ab25eeb5Syz { "ip upd. fail", KSTAT_DATA_ULONG } 217ab25eeb5Syz }; 218ab25eeb5Syz 219381a2a9aSdr 220ab25eeb5Syz static int ipf_kstat_update(kstat_t *ksp, int rwflag); 221ab25eeb5Syz 222ab25eeb5Syz static void 223*7ddc9b1aSDarren Reed ipf_kstat_init(ipf_stack_t *ifs) 224ab25eeb5Syz { 225*7ddc9b1aSDarren Reed ifs->ifs_kstatp[0] = net_kstat_create(ifs->ifs_netid, "ipf", 0, 226*7ddc9b1aSDarren Reed "inbound", "net", KSTAT_TYPE_NAMED, 227*7ddc9b1aSDarren Reed sizeof (filter_kstats_t) / sizeof (kstat_named_t), 0); 228*7ddc9b1aSDarren Reed if (ifs->ifs_kstatp[0] != NULL) { 229*7ddc9b1aSDarren Reed bcopy(&ipf_kstat_tmp, ifs->ifs_kstatp[0]->ks_data, 230*7ddc9b1aSDarren Reed sizeof (filter_kstats_t)); 231*7ddc9b1aSDarren Reed ifs->ifs_kstatp[0]->ks_update = ipf_kstat_update; 232*7ddc9b1aSDarren Reed ifs->ifs_kstatp[0]->ks_private = &ifs->ifs_frstats[0]; 233*7ddc9b1aSDarren Reed kstat_install(ifs->ifs_kstatp[0]); 234*7ddc9b1aSDarren Reed } 235ab25eeb5Syz 236*7ddc9b1aSDarren Reed ifs->ifs_kstatp[1] = net_kstat_create(ifs->ifs_netid, "ipf", 0, 237*7ddc9b1aSDarren Reed "outbound", "net", KSTAT_TYPE_NAMED, 238*7ddc9b1aSDarren Reed sizeof (filter_kstats_t) / sizeof (kstat_named_t), 0); 239*7ddc9b1aSDarren Reed if (ifs->ifs_kstatp[1] != NULL) { 240*7ddc9b1aSDarren Reed bcopy(&ipf_kstat_tmp, ifs->ifs_kstatp[1]->ks_data, 241*7ddc9b1aSDarren Reed sizeof (filter_kstats_t)); 242*7ddc9b1aSDarren Reed ifs->ifs_kstatp[1]->ks_update = ipf_kstat_update; 243*7ddc9b1aSDarren Reed ifs->ifs_kstatp[1]->ks_private = &ifs->ifs_frstats[1]; 244*7ddc9b1aSDarren Reed kstat_install(ifs->ifs_kstatp[1]); 245ab25eeb5Syz } 246ab25eeb5Syz 247ab25eeb5Syz #ifdef IPFDEBUG 248*7ddc9b1aSDarren Reed cmn_err(CE_NOTE, "IP Filter: ipf_kstat_init(%p) installed %p, %p", 249*7ddc9b1aSDarren Reed ifs, ifs->ifs_kstatp[0], ifs->ifs_kstatp[1]); 250ab25eeb5Syz #endif 251ab25eeb5Syz } 252ab25eeb5Syz 253*7ddc9b1aSDarren Reed 254ab25eeb5Syz static void 255*7ddc9b1aSDarren Reed ipf_kstat_fini(ipf_stack_t *ifs) 256ab25eeb5Syz { 257ab25eeb5Syz int i; 258f4b3ec61Sdh 259ab25eeb5Syz for (i = 0; i < 2; i++) { 260f4b3ec61Sdh if (ifs->ifs_kstatp[i] != NULL) { 261*7ddc9b1aSDarren Reed net_kstat_delete(ifs->ifs_netid, ifs->ifs_kstatp[i]); 262f4b3ec61Sdh ifs->ifs_kstatp[i] = NULL; 263ab25eeb5Syz } 264ab25eeb5Syz } 265ab25eeb5Syz } 266ab25eeb5Syz 267*7ddc9b1aSDarren Reed 268ab25eeb5Syz static int 269ab25eeb5Syz ipf_kstat_update(kstat_t *ksp, int rwflag) 270ab25eeb5Syz { 271ab25eeb5Syz filter_kstats_t *fkp; 272ab25eeb5Syz filterstats_t *fsp; 273ab25eeb5Syz 274f4b3ec61Sdh if (ksp == NULL || ksp->ks_data == NULL) 275f4b3ec61Sdh return (EIO); 276f4b3ec61Sdh 277ab25eeb5Syz if (rwflag == KSTAT_WRITE) 278ab25eeb5Syz return (EACCES); 279ab25eeb5Syz 280ab25eeb5Syz fkp = ksp->ks_data; 281ab25eeb5Syz fsp = ksp->ks_private; 282ab25eeb5Syz 283ab25eeb5Syz fkp->fks_pass.value.ul = fsp->fr_pass; 284ab25eeb5Syz fkp->fks_block.value.ul = fsp->fr_block; 285ab25eeb5Syz fkp->fks_nom.value.ul = fsp->fr_nom; 286ab25eeb5Syz fkp->fks_short.value.ul = fsp->fr_short; 287ab25eeb5Syz fkp->fks_ppkl.value.ul = fsp->fr_ppkl; 288ab25eeb5Syz fkp->fks_bpkl.value.ul = fsp->fr_bpkl; 289ab25eeb5Syz fkp->fks_npkl.value.ul = fsp->fr_npkl; 290ab25eeb5Syz fkp->fks_pkl.value.ul = fsp->fr_pkl; 291ab25eeb5Syz fkp->fks_skip.value.ul = fsp->fr_skip; 292ab25eeb5Syz fkp->fks_ret.value.ul = fsp->fr_ret; 293ab25eeb5Syz fkp->fks_acct.value.ul = fsp->fr_acct; 294ab25eeb5Syz fkp->fks_bnfr.value.ul = fsp->fr_bnfr; 295ab25eeb5Syz fkp->fks_nfr.value.ul = fsp->fr_nfr; 296ab25eeb5Syz fkp->fks_cfr.value.ul = fsp->fr_cfr; 297ab25eeb5Syz fkp->fks_bads.value.ul = fsp->fr_bads; 298ab25eeb5Syz fkp->fks_ads.value.ul = fsp->fr_ads; 299ab25eeb5Syz fkp->fks_chit.value.ul = fsp->fr_chit; 300ab25eeb5Syz fkp->fks_tcpbad.value.ul = fsp->fr_tcpbad; 301ab25eeb5Syz fkp->fks_pull[0].value.ul = fsp->fr_pull[0]; 302ab25eeb5Syz fkp->fks_pull[1].value.ul = fsp->fr_pull[1]; 303ab25eeb5Syz fkp->fks_badsrc.value.ul = fsp->fr_badsrc; 304ab25eeb5Syz fkp->fks_badttl.value.ul = fsp->fr_badttl; 305ab25eeb5Syz fkp->fks_bad.value.ul = fsp->fr_bad; 306ab25eeb5Syz fkp->fks_ipv6.value.ul = fsp->fr_ipv6; 307ab25eeb5Syz fkp->fks_ppshit.value.ul = fsp->fr_ppshit; 308ab25eeb5Syz fkp->fks_ipud.value.ul = fsp->fr_ipud; 309ab25eeb5Syz 310ab25eeb5Syz return (0); 311ab25eeb5Syz } 312ab25eeb5Syz 313ab25eeb5Syz int _init() 314ab25eeb5Syz { 315ab25eeb5Syz int ipfinst; 316ab25eeb5Syz 317ab25eeb5Syz ipfinst = mod_install(&modlink1); 318ab25eeb5Syz #ifdef IPFDEBUG 319ab25eeb5Syz cmn_err(CE_NOTE, "IP Filter: _init() = %d", ipfinst); 320ab25eeb5Syz #endif 321*7ddc9b1aSDarren Reed mutex_init(&ipf_stack_lock, NULL, MUTEX_DRIVER, NULL); 322ab25eeb5Syz return ipfinst; 323ab25eeb5Syz } 324ab25eeb5Syz 325ab25eeb5Syz 326ab25eeb5Syz int _fini(void) 327ab25eeb5Syz { 328ab25eeb5Syz int ipfinst; 329ab25eeb5Syz 330ab25eeb5Syz ipfinst = mod_remove(&modlink1); 331ab25eeb5Syz #ifdef IPFDEBUG 332ab25eeb5Syz cmn_err(CE_NOTE, "IP Filter: _fini() = %d", ipfinst); 333ab25eeb5Syz #endif 334ab25eeb5Syz return ipfinst; 335ab25eeb5Syz } 336ab25eeb5Syz 337ab25eeb5Syz 338ab25eeb5Syz int _info(modinfop) 339ab25eeb5Syz struct modinfo *modinfop; 340ab25eeb5Syz { 341ab25eeb5Syz int ipfinst; 342ab25eeb5Syz 343ab25eeb5Syz ipfinst = mod_info(&modlink1, modinfop); 344ab25eeb5Syz #ifdef IPFDEBUG 345*7ddc9b1aSDarren Reed cmn_err(CE_NOTE, "IP Filter: _info(%p) = %d", modinfop, ipfinst); 346ab25eeb5Syz #endif 347ab25eeb5Syz return ipfinst; 348ab25eeb5Syz } 349ab25eeb5Syz 350ab25eeb5Syz 351ab25eeb5Syz #if SOLARIS2 < 10 352ab25eeb5Syz static int ipf_identify(dip) 353ab25eeb5Syz dev_info_t *dip; 354ab25eeb5Syz { 355ab25eeb5Syz # ifdef IPFDEBUG 356*7ddc9b1aSDarren Reed cmn_err(CE_NOTE, "IP Filter: ipf_identify(%p)", dip); 357ab25eeb5Syz # endif 358ab25eeb5Syz if (strcmp(ddi_get_name(dip), "ipf") == 0) 359ab25eeb5Syz return (DDI_IDENTIFIED); 360ab25eeb5Syz return (DDI_NOT_IDENTIFIED); 361ab25eeb5Syz } 362ab25eeb5Syz #endif 363ab25eeb5Syz 364f4b3ec61Sdh /* 365f4b3ec61Sdh * Initialize things for IPF for each stack instance 366f4b3ec61Sdh */ 367f4b3ec61Sdh static void * 368*7ddc9b1aSDarren Reed ipf_stack_create(const netid_t id) 369f4b3ec61Sdh { 370f4b3ec61Sdh ipf_stack_t *ifs; 371f4b3ec61Sdh 372*7ddc9b1aSDarren Reed #ifdef IPFDEBUG 373*7ddc9b1aSDarren Reed cmn_err(CE_NOTE, "IP Filter:stack_create id=%d", id); 374f4b3ec61Sdh #endif 375f4b3ec61Sdh 376*7ddc9b1aSDarren Reed ifs = (ipf_stack_t *)kmem_alloc(sizeof (*ifs), KM_SLEEP); 377f4b3ec61Sdh bzero(ifs, sizeof (*ifs)); 378f4b3ec61Sdh 379f4b3ec61Sdh ifs->ifs_hook4_physical_in = B_FALSE; 380f4b3ec61Sdh ifs->ifs_hook4_physical_out = B_FALSE; 381f4b3ec61Sdh ifs->ifs_hook4_nic_events = B_FALSE; 382f4b3ec61Sdh ifs->ifs_hook4_loopback_in = B_FALSE; 383f4b3ec61Sdh ifs->ifs_hook4_loopback_out = B_FALSE; 384f4b3ec61Sdh ifs->ifs_hook6_physical_in = B_FALSE; 385f4b3ec61Sdh ifs->ifs_hook6_physical_out = B_FALSE; 386f4b3ec61Sdh ifs->ifs_hook6_nic_events = B_FALSE; 387f4b3ec61Sdh ifs->ifs_hook6_loopback_in = B_FALSE; 388f4b3ec61Sdh ifs->ifs_hook6_loopback_out = B_FALSE; 389f4b3ec61Sdh 390f4b3ec61Sdh /* 391f4b3ec61Sdh * Initialize mutex's 392f4b3ec61Sdh */ 393f4b3ec61Sdh RWLOCK_INIT(&ifs->ifs_ipf_global, "ipf filter load/unload mutex"); 394f4b3ec61Sdh RWLOCK_INIT(&ifs->ifs_ipf_mutex, "ipf filter rwlock"); 395*7ddc9b1aSDarren Reed 396*7ddc9b1aSDarren Reed ifs->ifs_netid = id; 397*7ddc9b1aSDarren Reed ifs->ifs_zone = net_getzoneidbynetid(id); 398*7ddc9b1aSDarren Reed ipf_kstat_init(ifs); 399*7ddc9b1aSDarren Reed 400*7ddc9b1aSDarren Reed #ifdef IPFDEBUG 401*7ddc9b1aSDarren Reed cmn_err(CE_CONT, "IP Filter:stack_create zone=%d", ifs->ifs_zone); 402f4b3ec61Sdh #endif 403f4b3ec61Sdh 404f4b3ec61Sdh /* 405f4b3ec61Sdh * Lock people out while we set things up. 406f4b3ec61Sdh */ 407f4b3ec61Sdh WRITE_ENTER(&ifs->ifs_ipf_global); 408f4b3ec61Sdh ipftuneable_alloc(ifs); 409f4b3ec61Sdh RWLOCK_EXIT(&ifs->ifs_ipf_global); 410f4b3ec61Sdh 41123f4867fSnordmark /* Limit to global stack */ 412*7ddc9b1aSDarren Reed if (ifs->ifs_zone == GLOBAL_ZONEID) 41323f4867fSnordmark cmn_err(CE_CONT, "!%s, running.\n", ipfilter_version); 41423f4867fSnordmark 415*7ddc9b1aSDarren Reed mutex_enter(&ipf_stack_lock); 416*7ddc9b1aSDarren Reed if (ipf_stacks != NULL) 417*7ddc9b1aSDarren Reed ipf_stacks->ifs_pnext = &ifs->ifs_next; 418*7ddc9b1aSDarren Reed ifs->ifs_next = ipf_stacks; 419*7ddc9b1aSDarren Reed ifs->ifs_pnext = &ipf_stacks; 420*7ddc9b1aSDarren Reed ipf_stacks = ifs; 421*7ddc9b1aSDarren Reed mutex_exit(&ipf_stack_lock); 422*7ddc9b1aSDarren Reed 423f4b3ec61Sdh return (ifs); 424f4b3ec61Sdh } 425f4b3ec61Sdh 426*7ddc9b1aSDarren Reed 427*7ddc9b1aSDarren Reed /* 428*7ddc9b1aSDarren Reed * This function should only ever be used to find the pointer to the 429*7ddc9b1aSDarren Reed * ipfilter stack structure for the zone that is currently being 430*7ddc9b1aSDarren Reed * executed... so if you're running in the context of zone 1, you 431*7ddc9b1aSDarren Reed * should not attempt to find the ipf_stack_t for zone 0 or 2 or 432*7ddc9b1aSDarren Reed * anything else but 1. In that way, the returned pointer is safe 433*7ddc9b1aSDarren Reed * as it will only be nuked when the instance is destroyed as part 434*7ddc9b1aSDarren Reed * of the final shutdown of a zone. 435*7ddc9b1aSDarren Reed */ 436*7ddc9b1aSDarren Reed ipf_stack_t *ipf_find_stack(const zoneid_t zone) 437*7ddc9b1aSDarren Reed { 438*7ddc9b1aSDarren Reed ipf_stack_t *ifs; 439*7ddc9b1aSDarren Reed 440*7ddc9b1aSDarren Reed mutex_enter(&ipf_stack_lock); 441*7ddc9b1aSDarren Reed for (ifs = ipf_stacks; ifs != NULL; ifs = ifs->ifs_next) { 442*7ddc9b1aSDarren Reed if (ifs->ifs_zone == zone) 443*7ddc9b1aSDarren Reed break; 444*7ddc9b1aSDarren Reed } 445*7ddc9b1aSDarren Reed mutex_exit(&ipf_stack_lock); 446*7ddc9b1aSDarren Reed return ifs; 447*7ddc9b1aSDarren Reed } 448*7ddc9b1aSDarren Reed 449*7ddc9b1aSDarren Reed 450f4b3ec61Sdh static int ipf_detach_check_zone(ipf_stack_t *ifs) 451f4b3ec61Sdh { 452f4b3ec61Sdh /* 453f4b3ec61Sdh * Make sure we're the only one's modifying things. With 454f4b3ec61Sdh * this lock others should just fall out of the loop. 455f4b3ec61Sdh */ 456f4b3ec61Sdh READ_ENTER(&ifs->ifs_ipf_global); 457f4b3ec61Sdh if (ifs->ifs_fr_running == 1) { 458f4b3ec61Sdh RWLOCK_EXIT(&ifs->ifs_ipf_global); 459f4b3ec61Sdh return (-1); 460f4b3ec61Sdh } 461f4b3ec61Sdh 462f4b3ec61Sdh /* 463f4b3ec61Sdh * Make sure there is no active filter rule. 464f4b3ec61Sdh */ 465f4b3ec61Sdh if (ifs->ifs_ipfilter[0][ifs->ifs_fr_active] || 466f4b3ec61Sdh ifs->ifs_ipfilter[1][ifs->ifs_fr_active] || 467f4b3ec61Sdh ifs->ifs_ipfilter6[0][ifs->ifs_fr_active] || 468f4b3ec61Sdh ifs->ifs_ipfilter6[1][ifs->ifs_fr_active]) { 469f4b3ec61Sdh RWLOCK_EXIT(&ifs->ifs_ipf_global); 470f4b3ec61Sdh return (-1); 471f4b3ec61Sdh } 472f4b3ec61Sdh 473f4b3ec61Sdh RWLOCK_EXIT(&ifs->ifs_ipf_global); 474f4b3ec61Sdh 475f4b3ec61Sdh return (0); 476f4b3ec61Sdh } 477f4b3ec61Sdh 478*7ddc9b1aSDarren Reed 479f4b3ec61Sdh static int ipf_detach_check_all() 480f4b3ec61Sdh { 481*7ddc9b1aSDarren Reed ipf_stack_t *ifs; 482*7ddc9b1aSDarren Reed 483*7ddc9b1aSDarren Reed mutex_enter(&ipf_stack_lock); 484*7ddc9b1aSDarren Reed for (ifs = ipf_stacks; ifs != NULL; ifs = ifs->ifs_next) 485*7ddc9b1aSDarren Reed if (ipf_detach_check_zone(ifs) != 0) 486*7ddc9b1aSDarren Reed break; 487*7ddc9b1aSDarren Reed mutex_exit(&ipf_stack_lock); 488*7ddc9b1aSDarren Reed return ((ifs == NULL) ? 0 : -1); 489f4b3ec61Sdh } 490f4b3ec61Sdh 491*7ddc9b1aSDarren Reed 492f4b3ec61Sdh /* 493f4b3ec61Sdh * Destroy things for ipf for one stack. 494f4b3ec61Sdh */ 495f4b3ec61Sdh /* ARGSUSED */ 496f4b3ec61Sdh static void 497*7ddc9b1aSDarren Reed ipf_stack_destroy(const netid_t id, void *arg) 498f4b3ec61Sdh { 499f4b3ec61Sdh ipf_stack_t *ifs = (ipf_stack_t *)arg; 500*7ddc9b1aSDarren Reed timeout_id_t tid; 501f4b3ec61Sdh 502*7ddc9b1aSDarren Reed #ifdef IPFDEBUG 503*7ddc9b1aSDarren Reed (void) printf("ipf_stack_destroy(%p)\n", (void *)ifs); 504f4b3ec61Sdh #endif 505f4b3ec61Sdh 506f4b3ec61Sdh /* 507f4b3ec61Sdh * Make sure we're the only one's modifying things. With 508f4b3ec61Sdh * this lock others should just fall out of the loop. 509f4b3ec61Sdh */ 510f4b3ec61Sdh WRITE_ENTER(&ifs->ifs_ipf_global); 511f4b3ec61Sdh if (ifs->ifs_fr_running == -2) { 512f4b3ec61Sdh RWLOCK_EXIT(&ifs->ifs_ipf_global); 513f4b3ec61Sdh return; 514f4b3ec61Sdh } 515f4b3ec61Sdh ifs->ifs_fr_running = -2; 516*7ddc9b1aSDarren Reed tid = ifs->ifs_fr_timer_id; 517*7ddc9b1aSDarren Reed ifs->ifs_fr_timer_id = NULL; 518f4b3ec61Sdh RWLOCK_EXIT(&ifs->ifs_ipf_global); 519f4b3ec61Sdh 520*7ddc9b1aSDarren Reed mutex_enter(&ipf_stack_lock); 521*7ddc9b1aSDarren Reed if (ifs->ifs_next != NULL) 522*7ddc9b1aSDarren Reed ifs->ifs_next->ifs_pnext = ifs->ifs_pnext; 523*7ddc9b1aSDarren Reed *ifs->ifs_pnext = ifs->ifs_next; 524*7ddc9b1aSDarren Reed mutex_exit(&ipf_stack_lock); 525*7ddc9b1aSDarren Reed 526*7ddc9b1aSDarren Reed ipf_kstat_fini(ifs); 527*7ddc9b1aSDarren Reed 528*7ddc9b1aSDarren Reed if (tid != NULL) 529*7ddc9b1aSDarren Reed (void) untimeout(tid); 530f4b3ec61Sdh 531f4b3ec61Sdh WRITE_ENTER(&ifs->ifs_ipf_global); 532f4b3ec61Sdh if (ipldetach(ifs) != 0) { 533*7ddc9b1aSDarren Reed printf("ipf_stack_destroy: ipldetach failed\n"); 534f4b3ec61Sdh } 535f4b3ec61Sdh 536f4b3ec61Sdh ipftuneable_free(ifs); 537f4b3ec61Sdh 538f4b3ec61Sdh RWLOCK_EXIT(&ifs->ifs_ipf_global); 539f4b3ec61Sdh RW_DESTROY(&ifs->ifs_ipf_mutex); 540f4b3ec61Sdh RW_DESTROY(&ifs->ifs_ipf_global); 541f4b3ec61Sdh 542f4b3ec61Sdh KFREE(ifs); 543f4b3ec61Sdh } 544ab25eeb5Syz 545*7ddc9b1aSDarren Reed 546ab25eeb5Syz static int ipf_attach(dip, cmd) 547ab25eeb5Syz dev_info_t *dip; 548ab25eeb5Syz ddi_attach_cmd_t cmd; 549ab25eeb5Syz { 550ab25eeb5Syz char *s; 551ab25eeb5Syz int i; 552ab25eeb5Syz int instance; 553ab25eeb5Syz 554ab25eeb5Syz #ifdef IPFDEBUG 555*7ddc9b1aSDarren Reed cmn_err(CE_NOTE, "IP Filter: ipf_attach(%p,%x)", dip, cmd); 556ab25eeb5Syz #endif 557ab25eeb5Syz 558ab25eeb5Syz switch (cmd) 559ab25eeb5Syz { 560ab25eeb5Syz case DDI_ATTACH: 561ab25eeb5Syz instance = ddi_get_instance(dip); 562ab25eeb5Syz /* Only one instance of ipf (instance 0) can be attached. */ 563ab25eeb5Syz if (instance > 0) 564ab25eeb5Syz return DDI_FAILURE; 565ab25eeb5Syz 566ab25eeb5Syz #ifdef IPFDEBUG 567*7ddc9b1aSDarren Reed cmn_err(CE_CONT, "IP Filter: attach ipf instance %d", instance); 568ab25eeb5Syz #endif 569ab25eeb5Syz 570f4b3ec61Sdh (void) ipf_property_g_update(dip); 571ab25eeb5Syz 572ab25eeb5Syz for (i = 0; ((s = ipf_devfiles[i]) != NULL); i++) { 573ab25eeb5Syz s = strrchr(s, '/'); 574ab25eeb5Syz if (s == NULL) 575ab25eeb5Syz continue; 576ab25eeb5Syz s++; 577ab25eeb5Syz if (ddi_create_minor_node(dip, s, S_IFCHR, i, 578ab25eeb5Syz DDI_PSEUDO, 0) == 579ab25eeb5Syz DDI_FAILURE) { 580ab25eeb5Syz ddi_remove_minor_node(dip, NULL); 581ab25eeb5Syz goto attach_failed; 582ab25eeb5Syz } 583ab25eeb5Syz } 584ab25eeb5Syz 585ab25eeb5Syz ipf_dev_info = dip; 586*7ddc9b1aSDarren Reed 587*7ddc9b1aSDarren Reed ipfncb = net_instance_alloc(NETINFO_VERSION); 588*7ddc9b1aSDarren Reed ipfncb->nin_name = "ipf"; 589*7ddc9b1aSDarren Reed ipfncb->nin_create = ipf_stack_create; 590*7ddc9b1aSDarren Reed ipfncb->nin_destroy = ipf_stack_destroy; 591*7ddc9b1aSDarren Reed ipfncb->nin_shutdown = NULL; 592*7ddc9b1aSDarren Reed i = net_instance_register(ipfncb); 593*7ddc9b1aSDarren Reed 594*7ddc9b1aSDarren Reed #ifdef IPFDEBUG 595*7ddc9b1aSDarren Reed cmn_err(CE_CONT, "IP Filter:stack_create callback_reg=%d", i); 596*7ddc9b1aSDarren Reed #endif 597*7ddc9b1aSDarren Reed 598ab25eeb5Syz return DDI_SUCCESS; 599ab25eeb5Syz /* NOTREACHED */ 600ab25eeb5Syz default: 601ab25eeb5Syz break; 602ab25eeb5Syz } 603ab25eeb5Syz 604ab25eeb5Syz attach_failed: 605f4b3ec61Sdh ddi_prop_remove_all(dip); 606ab25eeb5Syz return DDI_FAILURE; 607ab25eeb5Syz } 608ab25eeb5Syz 609ab25eeb5Syz 610ab25eeb5Syz static int ipf_detach(dip, cmd) 611ab25eeb5Syz dev_info_t *dip; 612ab25eeb5Syz ddi_detach_cmd_t cmd; 613ab25eeb5Syz { 614ab25eeb5Syz int i; 615ab25eeb5Syz 616ab25eeb5Syz #ifdef IPFDEBUG 617*7ddc9b1aSDarren Reed cmn_err(CE_NOTE, "IP Filter: ipf_detach(%p,%x)", dip, cmd); 618ab25eeb5Syz #endif 619ab25eeb5Syz switch (cmd) { 620ab25eeb5Syz case DDI_DETACH: 621f4b3ec61Sdh if (ipf_detach_check_all() != 0) 622ab25eeb5Syz return DDI_FAILURE; 623ab25eeb5Syz 624f4b3ec61Sdh /* Undo what we did in ipf_attach, freeing resources 625ab25eeb5Syz * and removing things we installed. The system 626ab25eeb5Syz * framework guarantees we are not active with this devinfo 627ab25eeb5Syz * node in any other entry points at this time. 628ab25eeb5Syz */ 629ab25eeb5Syz ddi_prop_remove_all(dip); 630ab25eeb5Syz i = ddi_get_instance(dip); 631ab25eeb5Syz ddi_remove_minor_node(dip, NULL); 632ab25eeb5Syz if (i > 0) { 633ab25eeb5Syz cmn_err(CE_CONT, "IP Filter: still attached (%d)\n", i); 634ab25eeb5Syz return DDI_FAILURE; 635ab25eeb5Syz } 636ab25eeb5Syz 637*7ddc9b1aSDarren Reed (void) net_instance_unregister(ipfncb); 638*7ddc9b1aSDarren Reed net_instance_free(ipfncb); 639*7ddc9b1aSDarren Reed 640f4b3ec61Sdh return DDI_SUCCESS; 641f4b3ec61Sdh /* NOTREACHED */ 642ab25eeb5Syz default: 643ab25eeb5Syz break; 644ab25eeb5Syz } 645ab25eeb5Syz cmn_err(CE_NOTE, "IP Filter: failed to detach\n"); 646ab25eeb5Syz return DDI_FAILURE; 647ab25eeb5Syz } 648ab25eeb5Syz 649ab25eeb5Syz 650ab25eeb5Syz /*ARGSUSED*/ 651ab25eeb5Syz static int ipf_getinfo(dip, infocmd, arg, result) 652ab25eeb5Syz dev_info_t *dip; 653ab25eeb5Syz ddi_info_cmd_t infocmd; 654ab25eeb5Syz void *arg, **result; 655ab25eeb5Syz { 656ab25eeb5Syz int error; 657ab25eeb5Syz 658ab25eeb5Syz error = DDI_FAILURE; 659ab25eeb5Syz #ifdef IPFDEBUG 660*7ddc9b1aSDarren Reed cmn_err(CE_NOTE, "IP Filter: ipf_getinfo(%p,%x,%p)", dip, infocmd, arg); 661ab25eeb5Syz #endif 662ab25eeb5Syz switch (infocmd) { 663ab25eeb5Syz case DDI_INFO_DEVT2DEVINFO: 664ab25eeb5Syz *result = ipf_dev_info; 665ab25eeb5Syz error = DDI_SUCCESS; 666ab25eeb5Syz break; 667ab25eeb5Syz case DDI_INFO_DEVT2INSTANCE: 668ab25eeb5Syz *result = (void *)0; 669ab25eeb5Syz error = DDI_SUCCESS; 670ab25eeb5Syz break; 671ab25eeb5Syz default: 672ab25eeb5Syz break; 673ab25eeb5Syz } 674ab25eeb5Syz return (error); 675ab25eeb5Syz } 676ab25eeb5Syz 677ab25eeb5Syz 678ab25eeb5Syz /* 679ab25eeb5Syz * Fetch configuration file values that have been entered into the ipf.conf 680ab25eeb5Syz * driver file. 681ab25eeb5Syz */ 682f4b3ec61Sdh static int ipf_property_g_update(dip) 683ab25eeb5Syz dev_info_t *dip; 684ab25eeb5Syz { 685ab25eeb5Syz #ifdef DDI_NO_AUTODETACH 686ab25eeb5Syz if (ddi_prop_update_int(DDI_DEV_T_NONE, dip, 687ab25eeb5Syz DDI_NO_AUTODETACH, 1) != DDI_PROP_SUCCESS) { 688ab25eeb5Syz cmn_err(CE_WARN, "!updating DDI_NO_AUTODETACH failed"); 689ab25eeb5Syz return DDI_FAILURE; 690ab25eeb5Syz } 691ab25eeb5Syz #else 692ab25eeb5Syz if (ddi_prop_update_int(DDI_DEV_T_NONE, dip, 693ab25eeb5Syz "ddi-no-autodetach", 1) != DDI_PROP_SUCCESS) { 694ab25eeb5Syz cmn_err(CE_WARN, "!updating ddi-no-autodetach failed"); 695ab25eeb5Syz return DDI_FAILURE; 696ab25eeb5Syz } 697ab25eeb5Syz #endif 698ab25eeb5Syz 699f4b3ec61Sdh return DDI_SUCCESS; 700f4b3ec61Sdh } 701f4b3ec61Sdh 702f4b3ec61Sdh int ipf_property_update(dip, ifs) 703f4b3ec61Sdh dev_info_t *dip; 704f4b3ec61Sdh ipf_stack_t *ifs; 705f4b3ec61Sdh { 706f4b3ec61Sdh ipftuneable_t *ipft; 707f4b3ec61Sdh int64_t *i64p; 708f4b3ec61Sdh char *name; 709f4b3ec61Sdh u_int one; 710f4b3ec61Sdh int *i32p; 711f4b3ec61Sdh int err; 712f4b3ec61Sdh 713f4b3ec61Sdh for (ipft = ifs->ifs_ipf_tuneables; (name = ipft->ipft_name) != NULL; ipft++) { 714ab25eeb5Syz one = 1; 715ab25eeb5Syz switch (ipft->ipft_sz) 716ab25eeb5Syz { 717ab25eeb5Syz case 4 : 718ab25eeb5Syz i32p = NULL; 719ab25eeb5Syz err = ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 720ab25eeb5Syz 0, name, &i32p, &one); 721ab25eeb5Syz if (err == DDI_PROP_NOT_FOUND) 722ab25eeb5Syz continue; 723ab25eeb5Syz #ifdef IPFDEBUG 724ab25eeb5Syz cmn_err(CE_CONT, "IP Filter: lookup_int(%s) = %d\n", 725ab25eeb5Syz name, err); 726ab25eeb5Syz #endif 727ab25eeb5Syz if (err != DDI_PROP_SUCCESS) 728ab25eeb5Syz return err; 729ab25eeb5Syz if (*i32p >= ipft->ipft_min && *i32p <= ipft->ipft_max) 730ab25eeb5Syz *ipft->ipft_pint = *i32p; 731ab25eeb5Syz else 732ab25eeb5Syz err = DDI_PROP_CANNOT_DECODE; 733ab25eeb5Syz ddi_prop_free(i32p); 734ab25eeb5Syz break; 735ab25eeb5Syz 736ab25eeb5Syz #if SOLARIS2 > 8 737ab25eeb5Syz case 8 : 738ab25eeb5Syz i64p = NULL; 739ab25eeb5Syz err = ddi_prop_lookup_int64_array(DDI_DEV_T_ANY, dip, 740ab25eeb5Syz 0, name, &i64p, &one); 741ab25eeb5Syz if (err == DDI_PROP_NOT_FOUND) 742ab25eeb5Syz continue; 743ab25eeb5Syz # ifdef IPFDEBUG 744ab25eeb5Syz cmn_err(CE_CONT, "IP Filter: lookup_int64(%s) = %d\n", 745ab25eeb5Syz name, err); 746ab25eeb5Syz # endif 747ab25eeb5Syz if (err != DDI_PROP_SUCCESS) 748ab25eeb5Syz return err; 749ab25eeb5Syz if (*i64p >= ipft->ipft_min && *i64p <= ipft->ipft_max) 750ab25eeb5Syz *ipft->ipft_pint = *i64p; 751ab25eeb5Syz else 752ab25eeb5Syz err = DDI_PROP_CANNOT_DECODE; 753ab25eeb5Syz ddi_prop_free(i64p); 754ab25eeb5Syz break; 755ab25eeb5Syz #endif 756ab25eeb5Syz default : 757ab25eeb5Syz break; 758ab25eeb5Syz } 759ab25eeb5Syz if (err != DDI_SUCCESS) 760ab25eeb5Syz break; 761ab25eeb5Syz } 762ab25eeb5Syz return err; 763ab25eeb5Syz } 764