40#define IN_HISTORICAL_NETS
43#include <sys/eventhandler.h>
45#include <sys/sockio.h>
46#include <sys/malloc.h>
48#include <sys/socket.h>
50#include <sys/kernel.h>
53#include <sys/sysctl.h>
54#include <sys/syslog.h>
58#include <net/if_var.h>
59#include <net/if_arp.h>
61#include <net/if_llatbl.h>
62#include <net/if_types.h>
64#include <net/route/nhop.h>
65#include <net/route/route_ctl.h>
79static int in_aifaddr_ioctl(u_long, caddr_t,
struct ifnet *,
struct thread *);
80static int in_difaddr_ioctl(u_long, caddr_t,
struct ifnet *,
struct thread *);
81static int in_gifaddr_ioctl(u_long, caddr_t,
struct ifnet *,
struct thread *);
89#define V_nosameprefix VNET(nosameprefix)
90SYSCTL_INT(_net_inet_ip, OID_AUTO, no_same_prefix, CTLFLAG_VNET | CTLFLAG_RW,
91 &VNET_NAME(nosameprefix), 0,
92 "Refuse to create same prefixes on different interfaces");
95#define V_broadcast_lowest VNET(broadcast_lowest)
96SYSCTL_BOOL(_net_inet_ip, OID_AUTO, broadcast_lowest, CTLFLAG_VNET | CTLFLAG_RW,
97 &VNET_NAME(broadcast_lowest), 0,
98 "Treat lowest address on a subnet (host 0) as broadcast");
101#define V_ripcbinfo VNET(ripcbinfo)
113 u_long i = ntohl(in.
s_addr);
156 ia->
ia_ifa.ifa_ifp->if_fib == fib)
173 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
174 if (ifa->ifa_addr->sa_family != AF_INET)
191 struct epoch_tracker et;
197 CK_LIST_FOREACH(ia,
INADDR_HASH(original_addr), ia_hash) {
200 if (!V_rt_add_addr_allfibs && (original_fib != fib))
202 if ((original_ia != ia) && (original_addr == addr)) {
223 struct in_ifaddr *ia = NULL, *ia_lo = NULL;
229 if (!V_rt_add_addr_allfibs && (fibnum != ia_fib))
232 if (!IN_LOOPBACK(ntohl(
IA_SIN(ia)->sin_addr.s_addr)))
252 u_long i = ntohl(in.
s_addr);
254 if (IN_EXPERIMENTAL(i) || IN_MULTICAST(i) || IN_LINKLOCAL(i) ||
255 IN_ZERONET(i) || IN_LOOPBACK(i))
266 char *cplim = (
char *) &ap->
sin_addr;
267 char *cp = (
char *) (&ap->
sin_addr + 1);
270 while (--cp >= cplim)
272 (ap)->sin_len = cp - (
char *) (ap) + 1;
281in_control(
struct socket *so, u_long cmd, caddr_t data,
struct ifnet *ifp,
284 struct ifreq *ifr = (
struct ifreq *)data;
286 struct epoch_tracker et;
292 return (EADDRNOTAVAIL);
327 if (ifp->if_ioctl == NULL)
329 return ((*ifp->if_ioctl)(ifp, cmd, data));
334 return (EADDRNOTAVAIL);
342 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
343 if (ifa->ifa_addr->sa_family != AF_INET)
350 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)
351 if (ifa->ifa_addr->sa_family == AF_INET) {
354 &ia->ia_addr.sin_addr) == 0)
360 return (EADDRNOTAVAIL);
370 if ((ifp->if_flags & IFF_BROADCAST) == 0) {
374 *addr = ia->ia_broadaddr;
378 if ((ifp->if_flags & IFF_POINTOPOINT) == 0) {
382 *addr = ia->ia_dstaddr;
386 *addr = ia->ia_sockmask;
402 const struct sockaddr_in *dstaddr = &ifra->ifra_dstaddr;
403 const int vhid = (cmd == SIOCAIFADDR) ? ifra->
ifra_vhid : 0;
404 struct epoch_tracker et;
410 error = priv_check(td, PRIV_NET_ADDIFADDR);
429 if ((ifp->if_flags & IFF_POINTOPOINT) &&
432 return (EDESTADDRREQ);
434 return (EPROTONOSUPPORT);
442 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
445 if (ifa->ifa_addr->sa_family != AF_INET)
460 ifa = ifa_alloc(
sizeof(
struct in_ifaddr), M_WAITOK);
462 ifa->ifa_addr = (
struct sockaddr *)&ia->ia_addr;
463 ifa->ifa_dstaddr = (
struct sockaddr *)&ia->ia_dstaddr;
464 ifa->ifa_netmask = (
struct sockaddr *)&ia->ia_sockmask;
465 callout_init_rw(&ia->ia_garp_timer, &ifp->if_addr_lock,
466 CALLOUT_RETURNUNLOCKED);
471 ia->ia_sockmask = *mask;
472 ia->ia_subnetmask = ntohl(ia->ia_sockmask.sin_addr.s_addr);
482 if ((ifp->if_flags & (IFF_POINTOPOINT | IFF_LOOPBACK)) == 0)
483 printf(
"%s: set address: WARNING: network mask "
484 "should be specified; using historical default\n",
487 ia->ia_subnetmask = IN_CLASSA_NET;
488 else if (IN_CLASSB(i))
489 ia->ia_subnetmask = IN_CLASSB_NET;
491 ia->ia_subnetmask = IN_CLASSC_NET;
492 ia->ia_sockmask.sin_addr.s_addr = htonl(ia->ia_subnetmask);
497 if (ifp->if_flags & IFF_BROADCAST) {
499 ia->ia_broadaddr = *broadaddr;
500 }
else if (ia->ia_subnetmask == IN_RFC3021_MASK) {
502 ia->ia_broadaddr.sin_len =
sizeof(
struct sockaddr_in);
503 ia->ia_broadaddr.sin_family = AF_INET;
505 ia->ia_broadaddr.sin_addr.s_addr =
506 htonl(ia->ia_subnet | ~ia->ia_subnetmask);
507 ia->ia_broadaddr.sin_len =
sizeof(
struct sockaddr_in);
508 ia->ia_broadaddr.sin_family = AF_INET;
512 if (ifp->if_flags & IFF_POINTOPOINT)
513 ia->ia_dstaddr = *dstaddr;
516 error = (*carp_attach_p)(&ia->ia_ifa, vhid);
523 CK_STAILQ_INSERT_TAIL(&ifp->if_addrhead, ifa, ifa_link);
524 IF_ADDR_WUNLOCK(ifp);
529 CK_LIST_INSERT_HEAD(
INADDR_HASH(ia->ia_addr.sin_addr.s_addr), ia,
537 if (ifp->if_ioctl != NULL) {
538 error = (*ifp->if_ioctl)(ifp, SIOCSIFADDR, (caddr_t)ia);
561 error = ifa_add_loopback_route((
struct ifaddr *)ia,
562 (
struct sockaddr *)&ia->ia_addr);
569 if (iaIsFirst && (ifp->if_flags & IFF_MULTICAST)) {
573 ii = ((
struct in_ifinfo *)ifp->if_afdata[AF_INET]);
574 allhosts_addr.
s_addr = htonl(INADDR_ALLHOSTS_GROUP);
585 EVENTHANDLER_INVOKE(ifaddr_event_ext, ifp, ifa, IFADDR_EVENT_ADD);
594 if (ia->ia_ifa.ifa_carp)
595 (*carp_detach_p)(&ia->ia_ifa,
false);
598 CK_STAILQ_REMOVE(&ifp->if_addrhead, &ia->ia_ifa, ifaddr, ifa_link);
599 IF_ADDR_WUNLOCK(ifp);
600 ifa_free(&ia->ia_ifa);
604 CK_LIST_REMOVE(ia, ia_hash);
605 ifa_free(&ia->ia_ifa);
613 const struct ifreq *ifr = (
struct ifreq *)data;
618 bool deleteAny, iaIsLast;
622 error = priv_check(td, PRIV_NET_DELIFADDR);
636 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
639 if (ifa->ifa_addr->sa_family != AF_INET)
643 if (deleteAny && ia == NULL && (td == NULL ||
657 IF_ADDR_WUNLOCK(ifp);
658 return (EADDRNOTAVAIL);
661 CK_STAILQ_REMOVE(&ifp->if_addrhead, &ia->ia_ifa, ifaddr, ifa_link);
662 IF_ADDR_WUNLOCK(ifp);
663 ifa_free(&ia->ia_ifa);
667 CK_LIST_REMOVE(ia, ia_hash);
682 if (ia->ia_ifa.ifa_carp)
683 (*carp_detach_p)(&ia->ia_ifa, cmd == SIOCAIFADDR);
690 if (iaIsLast && (ifp->if_flags & IFF_MULTICAST)) {
693 ii = ((
struct in_ifinfo *)ifp->if_afdata[AF_INET]);
701 if (callout_stop(&ia->ia_garp_timer) == 1) {
702 ifa_free(&ia->ia_ifa);
704 IF_ADDR_WUNLOCK(ifp);
706 EVENTHANDLER_INVOKE(ifaddr_event_ext, ifp, &ia->ia_ifa,
708 ifa_free(&ia->ia_ifa);
718 struct epoch_tracker et;
734 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
737 if (ifa->ifa_addr->sa_family != AF_INET)
749 return (EADDRNOTAVAIL);
753 if ((ifp->if_flags & IFF_POINTOPOINT) &&
756 else if ((ifp->if_flags & IFF_BROADCAST) &&
757 ia->ia_broadaddr.sin_family == AF_INET)
771 if (nh->nh_ifa == (
struct ifaddr *)arg)
786 struct sockaddr_dl_short sdl = {
787 .sdl_family = AF_LINK,
788 .sdl_len =
sizeof(
struct sockaddr_dl_short),
789 .sdl_type = ifa->ifa_ifp->if_type,
790 .sdl_index = ifa->ifa_ifp->if_index,
793 struct rt_addrinfo info = {
796 .rti_flags = RTF_PINNED | ((netmask != NULL) ? 0 : RTF_HOST),
798 [RTAX_DST] = (
struct sockaddr *)dst,
799 [RTAX_NETMASK] = (
struct sockaddr *)netmask,
800 [RTAX_GATEWAY] = (
struct sockaddr *)&sdl,
804 .rti_filterdata = ifa,
807 return (rib_handle_ifaddr_info(fibnum, cmd, &info));
864 struct ifnet *ifp = ia->ia_ifp;
867 if ((ifp->if_flags & IFF_LOOPBACK) ||
872 if ((ifp->if_flags & IFF_POINTOPOINT) &&
877 if (!(ifp->if_flags & IFF_POINTOPOINT) &&
891 if (ia->ia_ifp->if_flags & IFF_POINTOPOINT) {
895 }
else if (ia->ia_ifp->if_flags & IFF_LOOPBACK) {
914 struct ifaddr *ifa = &ia->
ia_ifa;
917 struct epoch_tracker et;
936 struct ifnet *ifp = ia->ia_ifp;
939 (!(ia->ia_ifp->if_flags & (IFF_POINTOPOINT|IFF_LOOPBACK)))) {
944 uint32_t fibnum = ifa->ifa_ifp->if_fib;
958 struct epoch_tracker et;
960 struct in_addr prefix, mask, p, m;
974 if (target->ia_ifp->if_fib != ia->ia_ifp->if_fib)
981 if (ia->ia_flags & IFA_ROUTE) {
1000 rt_addrmsg(RTM_ADD, &target->
ia_ifa,
1001 target->ia_ifp->if_fib);
1009 rt_addrmsg(RTM_ADD, &target->
ia_ifa, target->ia_ifp->if_fib);
1012 target->ia_flags |= IFA_ROUTE;
1024 struct sockaddr *saddr, *smask;
1027 saddr = (
struct sockaddr *)&addr;
1028 bzero(&addr,
sizeof(addr));
1031 smask = (
struct sockaddr *)&mask;
1032 bzero(&mask,
sizeof(mask));
1046 lltable_prefix_free(AF_INET, saddr, smask, flags);
1050 lltable_delete_addr(
LLTABLE(ifp), LLE_IFADDR, saddr);
1062 struct epoch_tracker et;
1064 struct in_addr prefix, mask, p, m;
1076 error = ifa_switch_loopback_route((
struct ifaddr *)eia,
1077 (
struct sockaddr *)&target->
ia_addr);
1078 ifa_free(&eia->ia_ifa);
1080 error = ifa_del_loopback_route((
struct ifaddr *)target,
1081 (
struct sockaddr *)&target->
ia_addr);
1087 if ((target->ia_flags & IFA_ROUTE) == 0) {
1088 rt_addrmsg(RTM_DELETE, &target->
ia_ifa, target->ia_ifp->if_fib);
1100 NET_EPOCH_ENTER(et);
1108 if ((ia->ia_ifp->if_flags & IFF_UP) == 0)
1116 if ((ia->ia_flags & IFA_ROUTE) == 0) {
1121 target->ia_flags &= ~IFA_ROUTE;
1123 log(LOG_INFO,
"in_scrubprefix: err=%d, old prefix delete failed\n",
1130 ia->ia_flags |= IFA_ROUTE;
1132 log(LOG_INFO,
"in_scrubprefix: err=%d, new prefix add failed\n",
1148 rt_addrmsg(RTM_DELETE, &target->
ia_ifa, target->ia_ifp->if_fib);
1151 target->ia_flags &= ~IFA_ROUTE;
1153 log(LOG_INFO,
"in_scrubprefix: err=%d, prefix delete failed\n", error);
1161 struct ifaddr *ifa, *nifa;
1162 struct ifaliasreq ifr;
1165 CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {
1168 CK_STAILQ_FOREACH_SAFE(ifa, &ifp->if_addrhead, ifa_link, nifa) {
1169 if (ifa->ifa_addr->sa_family != AF_INET)
1176 bzero(&ifr,
sizeof(ifr));
1177 ifr.ifra_addr = *ifa->ifa_addr;
1178 if (ifa->ifa_dstaddr)
1179 ifr.ifra_broadaddr = *ifa->ifa_dstaddr;
1180 (void)
in_control(NULL, SIOCDIFADDR, (caddr_t)&ifr,
1194 return ((in.
s_addr == ia->ia_broadaddr.sin_addr.s_addr ||
1223 if ((ifp->if_flags & IFF_BROADCAST) == 0)
1230 CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)
1231 if (ifa->ifa_addr->sa_family == AF_INET &&
1270 struct in_multi_head purgeinms;
1272 struct ifmultiaddr *ifma, *
next;
1274 SLIST_INIT(&purgeinms);
1285 CK_STAILQ_FOREACH_SAFE(ifma, &ifp->if_multiaddrs, ifma_link,
next) {
1286 if (ifma->ifma_addr->sa_family != AF_INET ||
1287 ifma->ifma_protospec == NULL)
1289 inm = (
struct in_multi *)ifma->ifma_protospec;
1296 IF_ADDR_WUNLOCK(ifp);
1307#define IN_LLTBL_DEFAULT_HSIZE 32
1308#define IN_LLTBL_HASH(k, h) \
1309 (((((((k >> 8) ^ k) >> 8) ^ k) >> 8) ^ k) & ((h) - 1))
1317 struct llentry *lle;
1319 lle = __containerof(ctx,
struct llentry, lle_epoch_ctx);
1320 LLE_LOCK_DESTROY(lle);
1321 LLE_REQ_DESTROY(lle);
1322 free(lle, M_LLTABLE);
1337static struct llentry *
1342 lle = malloc(
sizeof(
struct in_llentry), M_LLTABLE, M_NOWAIT | M_ZERO);
1350 lle->
base.la_expire = time_uptime;
1351 lle->
base.r_l3addr.addr4 = addr4;
1352 lle->
base.lle_refcnt = 1;
1354 LLE_LOCK_INIT(&lle->
base);
1355 LLE_REQ_INIT(&lle->
base);
1356 callout_init(&lle->
base.lle_timer, 1);
1358 return (&lle->
base);
1361#define IN_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
1362 ((((d).s_addr ^ (a).s_addr) & (m).s_addr)) == 0 )
1366 const struct sockaddr *smask, u_int flags,
struct llentry *lle)
1368 struct in_addr addr, mask, lle_addr;
1370 addr = ((
const struct sockaddr_in *)saddr)->sin_addr;
1371 mask = ((
const struct sockaddr_in *)smask)->sin_addr;
1372 lle_addr.
s_addr = ntohl(lle->r_l3addr.addr4.s_addr);
1377 if (lle->la_flags & LLE_IFADDR) {
1385 if (addr.
s_addr == lle_addr.
s_addr && (flags & LLE_STATIC) != 0)
1391 if ((flags & LLE_STATIC) || !(lle->la_flags & LLE_STATIC))
1400 size_t pkts_dropped;
1402 LLE_WLOCK_ASSERT(lle);
1403 KASSERT(llt != NULL, (
"lltable is NULL"));
1406 if ((lle->la_flags & LLE_LINKED) != 0) {
1407 IF_AFDATA_WLOCK_ASSERT(llt->llt_ifp);
1408 lltable_unlink_entry(llt, lle);
1412 pkts_dropped = llentry_free(lle);
1413 ARPSTAT_ADD(dropped, pkts_dropped);
1419 struct nhop_object *nh;
1422 KASSERT(l3addr->sa_family == AF_INET,
1423 (
"sin_family %d", l3addr->sa_family));
1425 addr = ((
const struct sockaddr_in *)l3addr)->sin_addr;
1427 nh =
fib4_lookup(ifp->if_fib, addr, 0, NHR_NONE, 0);
1437 if (nh->nh_flags & NHF_GATEWAY) {
1438 if (!(nh->nh_flags & NHF_HOST) || nh->nh_ifp->if_type != IFT_ETHER ||
1439 (nh->nh_ifp->if_flags & (IFF_NOARP | IFF_STATICARP)) != 0 ||
1440 memcmp(nh->gw_sa.sa_data, l3addr->sa_data,
1453 if ((nh->nh_ifp != ifp) && (nh->nh_flags & NHF_HOST) == 0) {
1455 struct in_addr dst_addr, mask_addr;
1465 dst_addr =
IA_SIN(ia)->sin_addr;
1495 bzero(sin,
sizeof(*sin));
1498 sin->
sin_addr = lle->r_l3addr.addr4;
1501static inline struct llentry *
1504 struct llentry *lle;
1505 struct llentries *lleh;
1509 lleh = &llt->lle_head[hashidx];
1510 CK_LIST_FOREACH(lle, lleh, lle_next) {
1511 if (lle->la_flags & LLE_DELETED)
1513 if (lle->r_l3addr.addr4.s_addr == dst.
s_addr)
1524 lle->la_flags |= LLE_DELETED;
1525 EVENTHANDLER_INVOKE(lle_event, lle, LLENTRY_DELETED);
1527 log(LOG_INFO,
"ifaddr cache = %p is deleted\n", lle);
1532static struct llentry *
1536 struct ifnet *ifp = llt->llt_ifp;
1537 struct llentry *lle;
1538 char linkhdr[LLE_MAX_LINKHDR];
1542 KASSERT(l3addr->sa_family == AF_INET,
1543 (
"sin_family %d", l3addr->sa_family));
1550 if (!(flags & LLE_IFADDR) &&
1556 log(LOG_INFO,
"lla_lookup: new lle malloc failed\n");
1559 lle->la_flags = flags;
1560 if (flags & LLE_STATIC)
1561 lle->r_flags |= RLLE_VALID;
1562 if ((flags & LLE_IFADDR) == LLE_IFADDR) {
1563 linkhdrsize = LLE_MAX_LINKHDR;
1564 if (lltable_calc_llheader(ifp, AF_INET, IF_LLADDR(ifp),
1565 linkhdr, &linkhdrsize, &lladdr_off) != 0) {
1569 lltable_set_entry_addr(ifp, lle, linkhdr, linkhdrsize,
1571 lle->la_flags |= LLE_STATIC;
1572 lle->r_flags |= (RLLE_VALID | RLLE_IFADDR);
1582static struct llentry *
1586 struct llentry *lle;
1588 IF_AFDATA_LOCK_ASSERT(llt->llt_ifp);
1589 KASSERT(l3addr->sa_family == AF_INET,
1590 (
"sin_family %d", l3addr->sa_family));
1591 KASSERT((flags & (LLE_UNLOCKED | LLE_EXCLUSIVE)) !=
1592 (LLE_UNLOCKED | LLE_EXCLUSIVE),
1593 (
"wrong lle request flags: %#x", flags));
1598 if (flags & LLE_UNLOCKED)
1601 if (flags & LLE_EXCLUSIVE)
1610 if (__predict_false((lle->la_flags & LLE_LINKED) == 0)) {
1611 if (flags & LLE_EXCLUSIVE)
1622 struct sysctl_req *wr)
1624 struct ifnet *ifp = llt->llt_ifp;
1627 struct rt_msghdr rtm;
1629 struct sockaddr_dl sdl;
1631 struct sockaddr_dl *sdl;
1634 bzero(&arpc,
sizeof(arpc));
1636 if ((lle->la_flags & LLE_DELETED) == LLE_DELETED)
1639 lltable_fill_sa_entry(lle,(
struct sockaddr *)&arpc.sin);
1640 if (prison_if(wr->td->td_ucred, (
struct sockaddr *)&arpc.sin) != 0)
1648 arpc.rtm.rtm_msglen =
sizeof(arpc);
1649 arpc.rtm.rtm_version = RTM_VERSION;
1650 arpc.rtm.rtm_type = RTM_GET;
1651 arpc.rtm.rtm_flags = RTF_UP;
1652 arpc.rtm.rtm_addrs = RTA_DST | RTA_GATEWAY;
1655 if (lle->la_flags & LLE_PUB)
1659 sdl->sdl_family = AF_LINK;
1660 sdl->sdl_len =
sizeof(*sdl);
1661 sdl->sdl_index = ifp->if_index;
1662 sdl->sdl_type = ifp->if_type;
1663 if ((lle->la_flags & LLE_VALID) == LLE_VALID) {
1664 sdl->sdl_alen = ifp->if_addrlen;
1665 bcopy(lle->ll_addr, LLADDR(sdl), ifp->if_addrlen);
1668 bzero(LLADDR(sdl), ifp->if_addrlen);
1671 arpc.rtm.rtm_rmx.rmx_expire =
1672 lle->la_flags & LLE_STATIC ? 0 : lle->la_expire;
1673 arpc.rtm.rtm_flags |= (RTF_HOST | RTF_LLDATA);
1674 if (lle->la_flags & LLE_STATIC)
1675 arpc.rtm.rtm_flags |= RTF_STATIC;
1676 if (lle->la_flags & LLE_IFADDR)
1677 arpc.rtm.rtm_flags |= RTF_PINNED;
1678 arpc.rtm.rtm_index = ifp->if_index;
1679 error = SYSCTL_OUT(wr, &arpc,
sizeof(arpc));
1684static struct lltable *
1687 struct lltable *llt;
1690 llt->llt_af = AF_INET;
1701 llt->llt_mark_used = llentry_mark_used;
1710 struct lltable *llt = NULL;
1712 void *afdata_ptr = ifp->if_afdata[AF_INET];
1713 if (afdata_ptr != NULL)
1714 llt = ((
struct in_ifinfo *)afdata_ptr)->ii_llt;
1723 ii = malloc(
sizeof(
struct in_ifinfo), M_IFADDR, M_WAITOK|M_ZERO);
1737 lltable_free(ii->
ii_llt);
void igmp_domifdetach(struct ifnet *ifp)
struct igmp_ifsoftc * igmp_domifattach(struct ifnet *ifp)
void igmp_ifdetach(struct ifnet *ifp)
int in_ifaddr_broadcast(struct in_addr in, struct in_ifaddr *ia)
static void in_purgemaddrs(struct ifnet *)
static void in_socktrim(struct sockaddr_in *)
SX_SYSINIT(in_control_sx, &in_control_sx, "in_control")
static int in_lltable_dump_entry(struct lltable *llt, struct llentry *lle, struct sysctl_req *wr)
static void in_lltable_delete_entry(struct lltable *llt, struct llentry *lle)
static struct lltable * in_lltattach(struct ifnet *ifp)
static void in_lltable_fill_sa_entry(const struct llentry *lle, struct sockaddr *sa)
struct in_ifaddr * in_findlocal(uint32_t fibnum, bool loopback_ok)
int in_scrubprefix(struct in_ifaddr *target, u_int flags)
void in_ifscrub_all(void)
static void in_lltable_destroy_lle(struct llentry *lle)
static struct in_ifaddr * in_localip_more(struct in_ifaddr *original_ia)
#define IN_LLTBL_HASH(k, h)
bool in_localip(struct in_addr in)
static struct llentry * in_lltable_find_dst(struct lltable *llt, struct in_addr dst)
static int in_gifaddr_ioctl(u_long, caddr_t, struct ifnet *, struct thread *)
static uint32_t in_lltable_hash(const struct llentry *lle, uint32_t hsize)
static void in_lltable_destroy_lle_unlocked(epoch_context_t ctx)
struct lltable * in_lltable_get(struct ifnet *ifp)
int in_localaddr(struct in_addr in)
#define IN_ARE_MASKED_ADDR_EQUAL(d, a, m)
int in_addprefix(struct in_ifaddr *target)
static struct llentry * in_lltable_lookup(struct lltable *llt, u_int flags, const struct sockaddr *l3addr)
static uint32_t in_lltable_hash_dst(const struct in_addr dst, uint32_t hsize)
static int in_match_ifaddr(const struct rtentry *rt, const struct nhop_object *nh, void *arg)
SYSCTL_BOOL(_net_inet_ip, OID_AUTO, broadcast_lowest, CTLFLAG_VNET|CTLFLAG_RW, &VNET_NAME(broadcast_lowest), 0, "Treat lowest address on a subnet (host 0) as broadcast")
int in_ifhasaddr(struct ifnet *ifp, struct in_addr in)
int in_handle_ifaddr_route(int cmd, struct in_ifaddr *ia)
static struct sx in_control_sx
SYSCTL_INT(_net_inet_ip, OID_AUTO, no_same_prefix, CTLFLAG_VNET|CTLFLAG_RW, &VNET_NAME(nosameprefix), 0, "Refuse to create same prefixes on different interfaces")
void * in_domifattach(struct ifnet *ifp)
static bool ia_need_loopback_route(const struct in_ifaddr *)
int in_broadcast(struct in_addr in, struct ifnet *ifp)
void in_ifdetach(struct ifnet *ifp)
static int in_lltable_match_prefix(const struct sockaddr *saddr, const struct sockaddr *smask, u_int flags, struct llentry *lle)
int in_control(struct socket *so, u_long cmd, caddr_t data, struct ifnet *ifp, struct thread *td)
static int in_aifaddr_ioctl(u_long, caddr_t, struct ifnet *, struct thread *)
#define V_broadcast_lowest
static struct llentry * in_lltable_alloc(struct lltable *llt, u_int flags, const struct sockaddr *l3addr)
int in_canforward(struct in_addr in)
static int in_handle_prefix_route(uint32_t fibnum, int cmd, struct sockaddr_in *dst, struct sockaddr_in *netmask, struct ifaddr *ifa, struct ifnet *ifp)
static int in_lltable_rtcheck(struct ifnet *ifp, u_int flags, const struct sockaddr *l3addr)
static void in_scrubprefixlle(struct in_ifaddr *ia, int all, u_int flags)
#define IN_LLTBL_DEFAULT_HSIZE
static void in_lltable_free_entry(struct lltable *llt, struct llentry *lle)
void in_domifdetach(struct ifnet *ifp, void *aux)
static struct llentry * in_lltable_new(struct in_addr addr4, u_int flags)
static int in_difaddr_ioctl(u_long, caddr_t, struct ifnet *, struct thread *)
static bool in_hasrtprefix(struct in_ifaddr *target)
static void ia_getrtprefix(const struct in_ifaddr *ia, struct in_addr *prefix, struct in_addr *mask)
bool in_localip_fib(struct in_addr in, uint16_t fib)
VNET_DECLARE(struct inpcbinfo, ripcbinfo)
VNET_DEFINE_STATIC(int, nosameprefix)
struct nhop_object * fib4_lookup(uint32_t fibnum, struct in_addr dst, uint32_t scopeid, uint32_t flags, uint32_t flowid)
int prison_check_ip4(const struct ucred *cred, const struct in_addr *ia)
void inm_release_list_deferred(struct in_multi_head *inmh)
int in_joingroup(struct ifnet *ifp, const struct in_addr *gina, struct in_mfilter *imf, struct in_multi **pinm)
void inm_release_wait(void *arg __unused)
int in_leavegroup(struct in_multi *inm, struct in_mfilter *imf)
void in_pcbpurgeif0(struct inpcbinfo *, struct ifnet *)
void in_ifadown(struct ifaddr *ifa, int delete)
#define IN_MULTI_LIST_UNLOCK()
#define IN_MULTI_UNLOCK()
static __inline void inm_rele_locked(struct in_multi_head *inmh, struct in_multi *inm)
#define IN_MULTI_LIST_LOCK()
int(* carp_attach_p)(struct ifaddr *, int)
struct sockaddr_in ifra_addr
struct sockaddr_in ifra_mask
struct sockaddr_in ifra_broadaddr
struct sockaddr_in ia_sockmask
struct sockaddr_in ia_dstaddr
struct sockaddr_in ia_addr
struct in_multi * ii_allhosts
struct igmp_ifsoftc * ii_igmp