/*
- * Copyright (c) 2010-2016 Apple Inc. All rights reserved.
+ * Copyright (c) 2010-2017 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <net/if.h>
#include <net/if_dl.h>
+#include <net/net_api_stats.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet6/mld6_var.h>
#include <netinet6/scope6_var.h>
-#ifndef __SOCKUNION_DECLARED
-union sockunion {
- struct sockaddr_storage ss;
- struct sockaddr sa;
- struct sockaddr_dl sdl;
- struct sockaddr_in6 sin6;
-};
-typedef union sockunion sockunion_t;
-#define __SOCKUNION_DECLARED
-#endif /* __SOCKUNION_DECLARED */
-
static void im6f_commit(struct in6_mfilter *);
static int im6f_get_source(struct in6_mfilter *imf,
const struct sockaddr_in6 *psin,
static void im6f_reap(struct in6_mfilter *);
static int im6o_grow(struct ip6_moptions *, size_t);
static size_t im6o_match_group(const struct ip6_moptions *,
- const struct ifnet *, const struct sockaddr *);
+ const struct ifnet *, const struct sockaddr_in6 *);
static struct in6_msource *
- im6o_match_source(const struct ip6_moptions *, const size_t,
- const struct sockaddr *);
+ im6o_match_source(const struct ip6_moptions *,
+ const size_t, const struct sockaddr_in6 *);
static void im6s_merge(struct ip6_msource *ims,
const struct in6_msource *lims, const int rollback);
static int in6_mc_get(struct ifnet *, const struct in6_addr *,
*/
static size_t
im6o_match_group(const struct ip6_moptions *imo, const struct ifnet *ifp,
- const struct sockaddr *group)
+ const struct sockaddr_in6 *group)
{
const struct sockaddr_in6 *gsin6;
struct in6_multi *pinm;
IM6O_LOCK_ASSERT_HELD(__DECONST(struct ip6_moptions *, imo));
- gsin6 = (struct sockaddr_in6 *)(uintptr_t)(size_t)group;
+ gsin6 = group;
/* The im6o_membership array may be lazy allocated. */
if (imo->im6o_membership == NULL || imo->im6o_num_memberships == 0)
*/
static struct in6_msource *
im6o_match_source(const struct ip6_moptions *imo, const size_t gidx,
- const struct sockaddr *src)
+ const struct sockaddr_in6 *src)
{
struct ip6_msource find;
struct in6_mfilter *imf;
struct ip6_msource *ims;
- const sockunion_t *psa;
+ const struct sockaddr_in6 *psa;
IM6O_LOCK_ASSERT_HELD(__DECONST(struct ip6_moptions *, imo));
- VERIFY(src->sa_family == AF_INET6);
+ VERIFY(src->sin6_family == AF_INET6);
VERIFY(gidx != (size_t)-1 && gidx < imo->im6o_num_memberships);
/* The im6o_mfilters array may be lazy allocated. */
return (NULL);
imf = &imo->im6o_mfilters[gidx];
- psa = (sockunion_t *)(uintptr_t)(size_t)src;
- find.im6s_addr = psa->sin6.sin6_addr;
+ psa = src;
+ find.im6s_addr = psa->sin6_addr;
in6_clearscope(&find.im6s_addr); /* XXX */
ims = RB_FIND(ip6_msource_tree, &imf->im6f_sources, &find);
*/
int
im6o_mc_filter(const struct ip6_moptions *imo, const struct ifnet *ifp,
- const struct sockaddr *group, const struct sockaddr *src)
+ const struct sockaddr_in6 *group, const struct sockaddr_in6 *src)
{
size_t gidx;
struct in6_msource *ims;
static int
in6m_merge(struct in6_multi *inm, /*const*/ struct in6_mfilter *imf)
{
- struct ip6_msource *ims, *nims;
+ struct ip6_msource *ims, *nims = NULL;
struct in6_msource *lims;
int schanged, error;
int nsrc0, nsrc1;
in6p_block_unblock_source(struct inpcb *inp, struct sockopt *sopt)
{
struct group_source_req gsr;
- sockunion_t *gsa, *ssa;
+ struct sockaddr_in6 *gsa, *ssa;
struct ifnet *ifp;
struct in6_mfilter *imf;
struct ip6_moptions *imo;
doblock = 0;
memset(&gsr, 0, sizeof(struct group_source_req));
- gsa = (sockunion_t *)&gsr.gsr_group;
- ssa = (sockunion_t *)&gsr.gsr_source;
+ gsa = (struct sockaddr_in6 *)&gsr.gsr_group;
+ ssa = (struct sockaddr_in6 *)&gsr.gsr_source;
switch (sopt->sopt_name) {
case MCAST_BLOCK_SOURCE:
if (error)
return (error);
- if (gsa->sin6.sin6_family != AF_INET6 ||
- gsa->sin6.sin6_len != sizeof(struct sockaddr_in6))
+ if (gsa->sin6_family != AF_INET6 ||
+ gsa->sin6_len != sizeof(struct sockaddr_in6))
return (EINVAL);
- if (ssa->sin6.sin6_family != AF_INET6 ||
- ssa->sin6.sin6_len != sizeof(struct sockaddr_in6))
+ if (ssa->sin6_family != AF_INET6 ||
+ ssa->sin6_len != sizeof(struct sockaddr_in6))
return (EINVAL);
ifnet_head_lock_shared();
return (EOPNOTSUPP);
}
- if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6.sin6_addr))
+ if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6_addr))
return (EINVAL);
- (void) in6_setscope(&gsa->sin6.sin6_addr, ifp, NULL);
+ (void) in6_setscope(&gsa->sin6_addr, ifp, NULL);
/*
* Check if we are actually a member of this group.
return (ENOMEM);
IM6O_LOCK(imo);
- idx = im6o_match_group(imo, ifp, &gsa->sa);
+ idx = im6o_match_group(imo, ifp, gsa);
if (idx == (size_t)-1 || imo->im6o_mfilters == NULL) {
error = EADDRNOTAVAIL;
goto out_imo_locked;
* Asked to unblock, but nothing to unblock.
* If adding a new block entry, allocate it.
*/
- ims = im6o_match_source(imo, idx, &ssa->sa);
+ ims = im6o_match_source(imo, idx, ssa);
if ((ims != NULL && doblock) || (ims == NULL && !doblock)) {
MLD_PRINTF(("%s: source %s %spresent\n", __func__,
- ip6_sprintf(&ssa->sin6.sin6_addr),
+ ip6_sprintf(&ssa->sin6_addr),
doblock ? "" : "not "));
error = EADDRNOTAVAIL;
goto out_imo_locked;
*/
if (doblock) {
MLD_PRINTF(("%s: %s source\n", __func__, "block"));
- ims = im6f_graft(imf, fmode, &ssa->sin6);
+ ims = im6f_graft(imf, fmode, ssa);
if (ims == NULL)
error = ENOMEM;
} else {
MLD_PRINTF(("%s: %s source\n", __func__, "allow"));
- error = im6f_prune(imf, &ssa->sin6);
+ error = im6f_prune(imf, ssa);
}
if (error) {
{
struct __msfilterreq64 msfr, msfr64;
struct __msfilterreq32 msfr32;
- sockunion_t *gsa;
+ struct sockaddr_in6 *gsa;
struct ifnet *ifp;
struct ip6_moptions *imo;
struct in6_mfilter *imf;
msfr.msfr_group.ss_len != sizeof(struct sockaddr_in6))
return (EINVAL);
- gsa = (sockunion_t *)&msfr.msfr_group;
- if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6.sin6_addr))
+ gsa = (struct sockaddr_in6 *)&msfr.msfr_group;
+ if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6_addr))
return (EINVAL);
ifnet_head_lock_shared();
if (msfr.msfr_nsrcs > in6_mcast_maxsocksrc)
msfr.msfr_nsrcs = in6_mcast_maxsocksrc;
- (void)in6_setscope(&gsa->sin6.sin6_addr, ifp, NULL);
+ (void)in6_setscope(&gsa->sin6_addr, ifp, NULL);
IM6O_LOCK(imo);
/*
* Lookup group on the socket.
*/
- idx = im6o_match_group(imo, ifp, &gsa->sa);
+ idx = im6o_match_group(imo, ifp, gsa);
if (idx == (size_t)-1 || imo->im6o_mfilters == NULL) {
IM6O_UNLOCK(imo);
return (EADDRNOTAVAIL);
in6p_join_group(struct inpcb *inp, struct sockopt *sopt)
{
struct group_source_req gsr;
- sockunion_t *gsa, *ssa;
+ struct sockaddr_in6 *gsa, *ssa;
struct ifnet *ifp;
struct in6_mfilter *imf;
struct ip6_moptions *imo;
is_new = 0;
memset(&gsr, 0, sizeof(struct group_source_req));
- gsa = (sockunion_t *)&gsr.gsr_group;
- gsa->ss.ss_family = AF_UNSPEC;
- ssa = (sockunion_t *)&gsr.gsr_source;
- ssa->ss.ss_family = AF_UNSPEC;
+ gsa = (struct sockaddr_in6 *)&gsr.gsr_group;
+ ssa = (struct sockaddr_in6 *)&gsr.gsr_source;
/*
* Chew everything into struct group_source_req.
switch (sopt->sopt_name) {
case IPV6_JOIN_GROUP: {
struct ipv6_mreq mreq;
- struct sockaddr_in6 *gsin6;
error = sooptcopyin(sopt, &mreq, sizeof(struct ipv6_mreq),
sizeof(struct ipv6_mreq));
return (inp_join_group(inp, &v4sopt));
}
- gsa->sin6.sin6_family = AF_INET6;
- gsa->sin6.sin6_len = sizeof(struct sockaddr_in6);
- gsa->sin6.sin6_addr = mreq.ipv6mr_multiaddr;
-
- gsin6 = &gsa->sin6;
+ gsa->sin6_family = AF_INET6;
+ gsa->sin6_len = sizeof(struct sockaddr_in6);
+ gsa->sin6_addr = mreq.ipv6mr_multiaddr;
/* Only allow IPv6 multicast addresses */
- if (IN6_IS_ADDR_MULTICAST(&gsin6->sin6_addr) == 0) {
+ if (IN6_IS_ADDR_MULTICAST(&gsa->sin6_addr) == 0) {
return (EINVAL);
}
if (mreq.ipv6mr_interface == 0) {
- ifp = in6p_lookup_mcast_ifp(inp, gsin6);
+ ifp = in6p_lookup_mcast_ifp(inp, gsa);
} else {
ifnet_head_lock_shared();
if ((u_int)if_index < mreq.ipv6mr_interface) {
if (error)
return (error);
- if (gsa->sin6.sin6_family != AF_INET6 ||
- gsa->sin6.sin6_len != sizeof(struct sockaddr_in6))
+ if (gsa->sin6_family != AF_INET6 ||
+ gsa->sin6_len != sizeof(struct sockaddr_in6))
return (EINVAL);
if (sopt->sopt_name == MCAST_JOIN_SOURCE_GROUP) {
- if (ssa->sin6.sin6_family != AF_INET6 ||
- ssa->sin6.sin6_len != sizeof(struct sockaddr_in6))
+ if (ssa->sin6_family != AF_INET6 ||
+ ssa->sin6_len != sizeof(struct sockaddr_in6))
return (EINVAL);
- if (IN6_IS_ADDR_MULTICAST(&ssa->sin6.sin6_addr))
+ if (IN6_IS_ADDR_MULTICAST(&ssa->sin6_addr))
return (EINVAL);
/*
* TODO: Validate embedded scope ID in source
* list entry against passed-in ifp, if and only
* if source list filter entry is iface or node local.
*/
- in6_clearscope(&ssa->sin6.sin6_addr);
- ssa->sin6.sin6_port = 0;
- ssa->sin6.sin6_scope_id = 0;
+ in6_clearscope(&ssa->sin6_addr);
+ ssa->sin6_port = 0;
+ ssa->sin6_scope_id = 0;
}
ifnet_head_lock_shared();
return (EOPNOTSUPP);
}
- if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6.sin6_addr))
+ if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6_addr))
return (EINVAL);
if (ifp == NULL || (ifp->if_flags & IFF_MULTICAST) == 0)
return (EADDRNOTAVAIL);
- gsa->sin6.sin6_port = 0;
- gsa->sin6.sin6_scope_id = 0;
+ INC_ATOMIC_INT64_LIM(net_api_stats.nas_socket_mcast_join_total);
+ /*
+ * TBD: revisit the criteria for non-OS initiated joins
+ */
+ if (inp->inp_lport == htons(5353)) {
+ INC_ATOMIC_INT64_LIM(net_api_stats.nas_socket_mcast_join_os_total);
+ }
+
+ gsa->sin6_port = 0;
+ gsa->sin6_scope_id = 0;
/*
* Always set the scope zone ID on memberships created from userland.
* Use the passed-in ifp to do this.
*/
- (void)in6_setscope(&gsa->sin6.sin6_addr, ifp, &scopeid);
+ (void)in6_setscope(&gsa->sin6_addr, ifp, &scopeid);
/*
* Some addresses are not valid without an embedded scopeid.
* This check must be present because otherwise we will later hit
* a VERIFY() in in6_mc_join().
*/
- if ((IN6_IS_ADDR_MC_LINKLOCAL(&gsa->sin6.sin6_addr) ||
- IN6_IS_ADDR_MC_INTFACELOCAL(&gsa->sin6.sin6_addr)) &&
- (scopeid == 0 || gsa->sin6.sin6_addr.s6_addr16[1] == 0))
+ if ((IN6_IS_ADDR_MC_LINKLOCAL(&gsa->sin6_addr) ||
+ IN6_IS_ADDR_MC_INTFACELOCAL(&gsa->sin6_addr)) &&
+ (scopeid == 0 || gsa->sin6_addr.s6_addr16[1] == 0))
return (EINVAL);
imo = in6p_findmoptions(inp);
return (ENOMEM);
IM6O_LOCK(imo);
- idx = im6o_match_group(imo, ifp, &gsa->sa);
+ idx = im6o_match_group(imo, ifp, gsa);
if (idx == (size_t)-1) {
is_new = 1;
} else {
inm = imo->im6o_membership[idx];
imf = &imo->im6o_mfilters[idx];
- if (ssa->ss.ss_family != AF_UNSPEC) {
+ if (ssa->sin6_family != AF_UNSPEC) {
/*
* MCAST_JOIN_SOURCE_GROUP on an exclusive membership
* is an error. On an existing inclusive membership,
* full-state SSM API with the delta-based API,
* which is discouraged in the relevant RFCs.
*/
- lims = im6o_match_source(imo, idx, &ssa->sa);
+ lims = im6o_match_source(imo, idx, ssa);
if (lims != NULL /*&&
lims->im6sl_st[1] == MCAST_INCLUDE*/) {
error = EADDRNOTAVAIL;
* XXX: Should check for non-NULL lims (node exists but may
* not be in-mode) for interop with full-state API.
*/
- if (ssa->ss.ss_family != AF_UNSPEC) {
+ if (ssa->sin6_family != AF_UNSPEC) {
/* Membership starts in IN mode */
if (is_new) {
MLD_PRINTF(("%s: new join w/source\n", __func__);
} else {
MLD_PRINTF(("%s: %s source\n", __func__, "allow"));
}
- lims = im6f_graft(imf, MCAST_INCLUDE, &ssa->sin6);
+ lims = im6f_graft(imf, MCAST_INCLUDE, ssa);
if (lims == NULL) {
MLD_PRINTF(("%s: merge imf state failed\n",
__func__));
socket_unlock(inp->inp_socket, 0);
VERIFY(inm == NULL);
- error = in6_mc_join(ifp, &gsa->sin6.sin6_addr, imf, &inm, 0);
+ error = in6_mc_join(ifp, &gsa->sin6_addr, imf, &inm, 0);
VERIFY(inm != NULL || error != 0);
socket_lock(inp->inp_socket, 0);
{
struct ipv6_mreq mreq;
struct group_source_req gsr;
- sockunion_t *gsa, *ssa;
+ struct sockaddr_in6 *gsa, *ssa;
struct ifnet *ifp;
struct in6_mfilter *imf;
struct ip6_moptions *imo;
is_final = 1;
memset(&gsr, 0, sizeof(struct group_source_req));
- gsa = (sockunion_t *)&gsr.gsr_group;
- gsa->ss.ss_family = AF_UNSPEC;
- ssa = (sockunion_t *)&gsr.gsr_source;
- ssa->ss.ss_family = AF_UNSPEC;
+ gsa = (struct sockaddr_in6 *)&gsr.gsr_group;
+ ssa = (struct sockaddr_in6 *)&gsr.gsr_source;
/*
* Chew everything passed in up into a struct group_source_req
*/
switch (sopt->sopt_name) {
case IPV6_LEAVE_GROUP: {
- struct sockaddr_in6 *gsin6;
error = sooptcopyin(sopt, &mreq, sizeof(struct ipv6_mreq),
sizeof(struct ipv6_mreq));
return (inp_leave_group(inp, &v4sopt));
}
- gsa->sin6.sin6_family = AF_INET6;
- gsa->sin6.sin6_len = sizeof(struct sockaddr_in6);
- gsa->sin6.sin6_addr = mreq.ipv6mr_multiaddr;
- gsa->sin6.sin6_port = 0;
- gsa->sin6.sin6_scope_id = 0;
+ gsa->sin6_family = AF_INET6;
+ gsa->sin6_len = sizeof(struct sockaddr_in6);
+ gsa->sin6_addr = mreq.ipv6mr_multiaddr;
+ gsa->sin6_port = 0;
+ gsa->sin6_scope_id = 0;
ifindex = mreq.ipv6mr_interface;
- gsin6 = &gsa->sin6;
/* Only allow IPv6 multicast addresses */
- if (IN6_IS_ADDR_MULTICAST(&gsin6->sin6_addr) == 0) {
+ if (IN6_IS_ADDR_MULTICAST(&gsa->sin6_addr) == 0) {
return (EINVAL);
}
break;
if (error)
return (error);
- if (gsa->sin6.sin6_family != AF_INET6 ||
- gsa->sin6.sin6_len != sizeof(struct sockaddr_in6))
+ if (gsa->sin6_family != AF_INET6 ||
+ gsa->sin6_len != sizeof(struct sockaddr_in6))
return (EINVAL);
if (sopt->sopt_name == MCAST_LEAVE_SOURCE_GROUP) {
- if (ssa->sin6.sin6_family != AF_INET6 ||
- ssa->sin6.sin6_len != sizeof(struct sockaddr_in6))
+ if (ssa->sin6_family != AF_INET6 ||
+ ssa->sin6_len != sizeof(struct sockaddr_in6))
return (EINVAL);
- if (IN6_IS_ADDR_MULTICAST(&ssa->sin6.sin6_addr))
+ if (IN6_IS_ADDR_MULTICAST(&ssa->sin6_addr))
return (EINVAL);
/*
* TODO: Validate embedded scope ID in source
* list entry against passed-in ifp, if and only
* if source list filter entry is iface or node local.
*/
- in6_clearscope(&ssa->sin6.sin6_addr);
+ in6_clearscope(&ssa->sin6_addr);
}
- gsa->sin6.sin6_port = 0;
- gsa->sin6.sin6_scope_id = 0;
+ gsa->sin6_port = 0;
+ gsa->sin6_scope_id = 0;
ifindex = gsr.gsr_interface;
break;
return (EOPNOTSUPP);
}
- if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6.sin6_addr))
+ if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6_addr))
return (EINVAL);
/*
ifnet_head_done();
if (ifp == NULL)
return (EADDRNOTAVAIL);
- (void) in6_setscope(&gsa->sin6.sin6_addr, ifp, NULL);
+ (void) in6_setscope(&gsa->sin6_addr, ifp, NULL);
} else {
- error = sa6_embedscope(&gsa->sin6, ip6_use_defzone);
+ error = sa6_embedscope(gsa, ip6_use_defzone);
if (error)
return (EADDRNOTAVAIL);
/*
* directly until such time as this implementation is
* refactored, assuming the scope IDs are the way to go.
*/
- ifindex = ntohs(gsa->sin6.sin6_addr.s6_addr16[1]);
+ ifindex = ntohs(gsa->sin6_addr.s6_addr16[1]);
if (ifindex == 0) {
MLD_PRINTF(("%s: warning: no ifindex, looking up "
"ifp for group %s.\n", __func__,
- ip6_sprintf(&gsa->sin6.sin6_addr)));
- ifp = in6p_lookup_mcast_ifp(inp, &gsa->sin6);
+ ip6_sprintf(&gsa->sin6_addr)));
+ ifp = in6p_lookup_mcast_ifp(inp, gsa);
} else {
if (!IF_INDEX_IN_RANGE(ifindex))
return (EADDRNOTAVAIL);
return (ENOMEM);
IM6O_LOCK(imo);
- idx = im6o_match_group(imo, ifp, &gsa->sa);
+ idx = im6o_match_group(imo, ifp, gsa);
if (idx == (size_t)-1) {
error = EADDRNOTAVAIL;
goto out_locked;
inm = imo->im6o_membership[idx];
imf = &imo->im6o_mfilters[idx];
- if (ssa->ss.ss_family != AF_UNSPEC)
+ if (ssa->sin6_family != AF_UNSPEC)
is_final = 0;
/*
error = EADDRNOTAVAIL;
goto out_locked;
}
- ims = im6o_match_source(imo, idx, &ssa->sa);
+ ims = im6o_match_source(imo, idx, ssa);
if (ims == NULL) {
MLD_PRINTF(("%s: source %s %spresent\n", __func__,
- ip6_sprintf(&ssa->sin6.sin6_addr),
+ ip6_sprintf(&ssa->sin6_addr),
"not "));
error = EADDRNOTAVAIL;
goto out_locked;
}
MLD_PRINTF(("%s: %s source\n", __func__, "block"));
- error = im6f_prune(imf, &ssa->sin6);
+ error = im6f_prune(imf, ssa);
if (error) {
MLD_PRINTF(("%s: merge imf state failed\n",
__func__));
{
struct __msfilterreq64 msfr, msfr64;
struct __msfilterreq32 msfr32;
- sockunion_t *gsa;
+ struct sockaddr_in6 *gsa;
struct ifnet *ifp;
struct in6_mfilter *imf;
struct ip6_moptions *imo;
msfr.msfr_group.ss_len != sizeof(struct sockaddr_in6))
return (EINVAL);
- gsa = (sockunion_t *)&msfr.msfr_group;
- if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6.sin6_addr))
+ gsa = (struct sockaddr_in6 *)&msfr.msfr_group;
+ if (!IN6_IS_ADDR_MULTICAST(&gsa->sin6_addr))
return (EINVAL);
- gsa->sin6.sin6_port = 0; /* ignore port */
+ gsa->sin6_port = 0; /* ignore port */
ifnet_head_lock_shared();
if (msfr.msfr_ifindex == 0 || (u_int)if_index < msfr.msfr_ifindex) {
if (ifp == NULL)
return (EADDRNOTAVAIL);
- (void)in6_setscope(&gsa->sin6.sin6_addr, ifp, NULL);
+ (void)in6_setscope(&gsa->sin6_addr, ifp, NULL);
/*
* Take the INP write lock.
return (ENOMEM);
IM6O_LOCK(imo);
- idx = im6o_match_group(imo, ifp, &gsa->sa);
+ idx = im6o_match_group(imo, ifp, gsa);
if (idx == (size_t)-1 || imo->im6o_mfilters == NULL) {
error = EADDRNOTAVAIL;
goto out_imo_locked;
void
in6_multihead_lock_assert(int what)
{
- lck_rw_assert(&in6_multihead_lock, what);
+#if !MACH_ASSERT
+#pragma unused(what)
+#endif
+ LCK_RW_ASSERT(&in6_multihead_lock, what);
}
void
projects / apple / xnu.git / blobdiff