/*
- * Copyright (c) 2008 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <sys/param.h>
#include <sys/malloc.h>
#include <sys/proc.h>
+#include <sys/mcache.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/protosw.h>
extern int ipsec_bypass;
#endif /*IPSEC*/
-#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
-#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
-
/*
* Raw interface to IP6 protocol.
*/
extern struct inpcbinfo ripcbinfo;
extern u_int32_t rip_sendspace;
extern u_int32_t rip_recvspace;
+extern int ip6_raw_ctloutput(struct socket *so, struct sockopt *sopt);
struct rip6stat rip6stat;
int
rip6_input(
struct mbuf **mp,
- int *offp)
+ int *offp,
+ int proto)
{
struct mbuf *m = *mp;
register struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
struct inpcb *last = 0;
struct mbuf *opts = NULL;
struct sockaddr_in6 rip6src;
- int proto = ip6->ip6_nxt;
+ int ret;
- rip6stat.rip6s_ipackets++;
+ /* Expect 32-bit aligned data pointer on strict-align platforms */
+ MBUF_STRICT_DATA_ALIGNMENT_CHECK_32(m);
-#if defined(NFAITH) && 0 < NFAITH
- if (faithprefix(&ip6->ip6_dst)) {
- /* XXX send icmp6 host/port unreach? */
- m_freem(m);
- return IPPROTO_DONE;
- }
-#endif
+ rip6stat.rip6s_ipackets++;
init_sin6(&rip6src, m); /* general init */
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr) &&
!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, &ip6->ip6_src))
continue;
- if (in6p->in6p_cksum != -1) {
+ if (proto == IPPROTO_ICMPV6 || in6p->in6p_cksum != -1) {
rip6stat.rip6s_isum++;
if (in6_cksum(m, ip6->ip6_nxt, *offp,
m->m_pkthdr.len - *offp)) {
} else
#endif /*IPSEC*/
if (n) {
- if (last->in6p_flags & IN6P_CONTROLOPTS ||
- last->in6p_socket->so_options & SO_TIMESTAMP)
- ip6_savecontrol(last, &opts, ip6, n);
+ if ((last->in6p_flags & IN6P_CONTROLOPTS) != 0 ||
+ (last->in6p_socket->so_options & SO_TIMESTAMP) != 0 ||
+ (last->in6p_socket->so_options & SO_TIMESTAMP_MONOTONIC) != 0) {
+ ret = ip6_savecontrol(last, n, &opts);
+ if (ret != 0) {
+ m_freem(n);
+ m_freem(opts);
+ last = in6p;
+ continue;
+ }
+ }
/* strip intermediate headers */
m_adj(n, *offp);
+ so_recv_data_stat(last->in6p_socket, m, 0);
if (sbappendaddr(&last->in6p_socket->so_rcv,
(struct sockaddr *)&rip6src,
n, opts, NULL) == 0) {
}
last = in6p;
}
- lck_rw_done(ripcbinfo.mtx);
+
#if IPSEC
/*
* Check AH/ESP integrity.
} else
#endif /*IPSEC*/
if (last) {
- if (last->in6p_flags & IN6P_CONTROLOPTS ||
- last->in6p_socket->so_options & SO_TIMESTAMP)
- ip6_savecontrol(last, &opts, ip6, m);
+ if ((last->in6p_flags & IN6P_CONTROLOPTS) != 0 ||
+ (last->in6p_socket->so_options & SO_TIMESTAMP) != 0 ||
+ (last->in6p_socket->so_options & SO_TIMESTAMP_MONOTONIC) != 0) {
+ ret = ip6_savecontrol(last, m, &opts);
+ if (ret != 0) {
+ m_freem(m);
+ m_freem(opts);
+ ip6stat.ip6s_delivered--;
+ goto unlock;
+ }
+
+ }
/* strip intermediate headers */
m_adj(m, *offp);
+ so_recv_data_stat(last->in6p_socket, m, 0);
if (sbappendaddr(&last->in6p_socket->so_rcv,
(struct sockaddr *)&rip6src, m, opts, NULL) == 0) {
rip6stat.rip6s_fullsock++;
}
ip6stat.ip6s_delivered--;
}
+
+unlock:
+ lck_rw_done(ripcbinfo.mtx);
+
return IPPROTO_DONE;
}
{
struct ip6_hdr *ip6;
struct mbuf *m;
+ void *cmdarg = NULL;
int off = 0;
struct ip6ctlparam *ip6cp = NULL;
const struct sockaddr_in6 *sa6_src = NULL;
m = ip6cp->ip6c_m;
ip6 = ip6cp->ip6c_ip6;
off = ip6cp->ip6c_off;
+ cmdarg = ip6cp->ip6c_cmdarg;
sa6_src = ip6cp->ip6c_src;
} else {
m = NULL;
}
(void) in6_pcbnotify(&ripcbinfo, sa, 0, (const struct sockaddr *)sa6_src,
- 0, cmd, notify);
+ 0, cmd, cmdarg, notify);
}
/*
register struct mbuf *m,
struct socket *so,
struct sockaddr_in6 *dstsock,
- struct mbuf *control)
+ struct mbuf *control,
+ int israw)
{
struct in6_addr *dst;
struct ip6_hdr *ip6;
u_int plen = m->m_pkthdr.len;
int error = 0;
struct ip6_pktopts opt, *optp = 0;
+ struct ip6_moptions *im6o = NULL;
struct ifnet *oifp = NULL;
int type = 0, code = 0; /* for ICMPv6 output statistics only */
- int priv = 0;
+ mbuf_svc_class_t msc = MBUF_SC_UNSPEC;
+ struct ip6_out_args ip6oa =
+ { IFSCOPE_NONE, { 0 }, IP6OAF_SELECT_SRCIF };
+ int flags = IPV6_OUTARGS;
+
+ if (dstsock && IN6_IS_ADDR_V4MAPPED(&dstsock->sin6_addr)) {
+ m_freem(m);
+ return (EINVAL);
+ }
in6p = sotoin6pcb(so);
- priv = 0;
- if (so->so_uid == 0)
- priv = 1;
+ if (in6p->inp_flags & INP_BOUND_IF) {
+ ip6oa.ip6oa_boundif = in6p->inp_boundifp->if_index;
+ ip6oa.ip6oa_flags |= IP6OAF_BOUND_IF;
+ }
+ if (in6p->inp_flags & INP_NO_IFT_CELLULAR)
+ ip6oa.ip6oa_flags |= IP6OAF_NO_CELLULAR;
+
dst = &dstsock->sin6_addr;
if (control) {
- if ((error = ip6_setpktoptions(control, &opt, priv, 0)) != 0)
+ msc = mbuf_service_class_from_control(control);
+
+ if ((error = ip6_setpktopts(control, &opt, NULL, so->so_proto->pr_protocol)) != 0)
goto bad;
optp = &opt;
} else
code = icmp6->icmp6_code;
}
+ if (in6p->inp_flowhash == 0)
+ in6p->inp_flowhash = inp_calc_flowhash(in6p);
+
M_PREPEND(m, sizeof(*ip6), M_WAIT);
if (m == NULL) {
error = ENOBUFS;
*/
ip6->ip6_dst = *dst;
+ im6o = in6p->in6p_moptions;
+
/*
* If the scope of the destination is link-local, embed the interface
* index in the address.
*/
if (IN6_IS_SCOPE_LINKLOCAL(&ip6->ip6_dst)) {
struct in6_pktinfo *pi;
+ struct ifnet *im6o_multicast_ifp = NULL;
+ if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) && im6o != NULL) {
+ IM6O_LOCK(im6o);
+ im6o_multicast_ifp = im6o->im6o_multicast_ifp;
+ IM6O_UNLOCK(im6o);
+ }
/*
* XXX Boundary check is assumed to be already done in
* ip6_setpktoptions().
if (optp && (pi = optp->ip6po_pktinfo) && pi->ipi6_ifindex) {
ip6->ip6_dst.s6_addr16[1] = htons(pi->ipi6_ifindex);
oifp = ifindex2ifnet[pi->ipi6_ifindex];
+ if (oifp != NULL)
+ ifnet_reference(oifp);
} else if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) &&
- in6p->in6p_moptions &&
- in6p->in6p_moptions->im6o_multicast_ifp) {
- oifp = in6p->in6p_moptions->im6o_multicast_ifp;
+ im6o != NULL && im6o_multicast_ifp != NULL) {
+ oifp = im6o_multicast_ifp;
+ ifnet_reference(oifp);
ip6->ip6_dst.s6_addr16[1] = htons(oifp->if_index);
} else if (dstsock->sin6_scope_id) {
/*
struct in6_addr *in6a;
struct in6_addr storage;
u_short index = 0;
- if ((in6a = in6_selectsrc(dstsock, optp,
- in6p->in6p_moptions,
- &in6p->in6p_route,
- &in6p->in6p_laddr,
- &storage, &error)) == 0) {
+
+ if (israw != 0 && optp && optp->ip6po_pktinfo && !IN6_IS_ADDR_UNSPECIFIED(&optp->ip6po_pktinfo->ipi6_addr)) {
+ in6a = &optp->ip6po_pktinfo->ipi6_addr;
+ flags |= IPV6_FLAG_NOSRCIFSEL;
+ } else if ((in6a = in6_selectsrc(dstsock, optp, in6p,
+ &in6p->in6p_route, NULL, &storage, ip6oa.ip6oa_boundif,
+ &error)) == 0) {
if (error == 0)
error = EADDRNOTAVAIL;
goto bad;
+ } else {
+ ip6oa.ip6oa_flags |= IP6OAF_BOUND_SRCADDR;
}
ip6->ip6_src = *in6a;
if (in6p->in6p_route.ro_rt != NULL) {
if (in6p->in6p_route.ro_rt->rt_ifp != NULL)
index = in6p->in6p_route.ro_rt->rt_ifp->if_index;
RT_UNLOCK(in6p->in6p_route.ro_rt);
+ if (oifp != NULL)
+ ifnet_release(oifp);
ifnet_head_lock_shared();
if (index == 0 || if_index < index) {
panic("bad if_index on interface from route");
}
oifp = ifindex2ifnet[index];
+ if (oifp != NULL)
+ ifnet_reference(oifp);
ifnet_head_done();
}
}
off = offsetof(struct icmp6_hdr, icmp6_cksum);
else
off = in6p->in6p_cksum;
- if (plen < off + 1) {
+ if (plen < (unsigned int)(off + 1)) {
error = EINVAL;
goto bad;
}
}
if (!n)
goto bad;
- p = (u_int16_t *)(mtod(n, caddr_t) + off);
+ p = (u_int16_t *)(void *)(mtod(n, caddr_t) + off);
*p = 0;
*p = in6_cksum(m, ip6->ip6_nxt, sizeof(*ip6), plen);
}
in6p->in6p_route.ro_rt = NULL;
}
- error = ip6_output(m, optp, &in6p->in6p_route, 0,
- in6p->in6p_moptions, &oifp, 0);
+ if (oifp != NULL) {
+ ifnet_release(oifp);
+ oifp = NULL;
+ }
+
+ set_packet_service_class(m, so, msc, PKT_SCF_IPV6);
+ m->m_pkthdr.m_flowhash = in6p->inp_flowhash;
+ m->m_pkthdr.m_fhflags |= PF_TAG_FLOWHASH;
+
+ if (im6o != NULL)
+ IM6O_ADDREF(im6o);
+
+ error = ip6_output(m, optp, &in6p->in6p_route, flags, im6o,
+ &oifp, &ip6oa);
+
+ if (im6o != NULL)
+ IM6O_REMREF(im6o);
+
+ if (in6p->in6p_route.ro_rt != NULL) {
+ struct rtentry *rt = in6p->in6p_route.ro_rt;
+ struct ifnet *outif;
+
+ if ((rt->rt_flags & RTF_MULTICAST) ||
+ in6p->in6p_socket == NULL ||
+ !(in6p->in6p_socket->so_state & SS_ISCONNECTED)) {
+ rt = NULL; /* unusable */
+ }
+ /*
+ * Always discard the cached route for unconnected
+ * socket or if it is a multicast route.
+ */
+ if (rt == NULL) {
+ rtfree(in6p->in6p_route.ro_rt);
+ in6p->in6p_route.ro_rt = NULL;
+ }
+ /*
+ * If this is a connected socket and the destination
+ * route is not multicast, update outif with that of
+ * the route interface index used by IP.
+ */
+ if (rt != NULL &&
+ (outif = rt->rt_ifp) != in6p->in6p_last_outifp)
+ in6p->in6p_last_outifp = outif;
+ }
+
if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
if (oifp)
icmp6_ifoutstat_inc(oifp, type, code);
}
if (control) {
if (optp == &opt)
- ip6_clearpktopts(optp, 0, -1);
+ ip6_clearpktopts(optp, -1);
m_freem(control);
}
+ if (oifp != NULL)
+ ifnet_release(oifp);
return(error);
}
-static void
+#if IPFW2
+__private_extern__ void
load_ip6fw(void)
{
ip6_fw_init();
}
+#endif
/*
* Raw IPv6 socket option processing.
struct socket *so,
struct sockopt *sopt)
{
- int error;
+ int error, optval;
+ /* Allow <SOL_SOCKET,SO_FLUSH> at this level */
if (sopt->sopt_level == IPPROTO_ICMPV6)
/*
* XXX: is it better to call icmp6_ctloutput() directly
* from protosw?
*/
return(icmp6_ctloutput(so, sopt));
- else if (sopt->sopt_level != IPPROTO_IPV6)
+ else if (sopt->sopt_level != IPPROTO_IPV6 &&
+ !(sopt->sopt_level == SOL_SOCKET && sopt->sopt_name == SO_FLUSH))
return (EINVAL);
error = 0;
switch (sopt->sopt_dir) {
case SOPT_GET:
switch (sopt->sopt_name) {
+#if IPFW2
case IPV6_FW_ADD:
case IPV6_FW_GET:
if (ip6_fw_ctl_ptr == 0)
else
error = ENOPROTOOPT;
break;
+#endif
case MRT6_INIT:
case MRT6_DONE:
case MRT6_ADD_MFC:
case MRT6_DEL_MFC:
case MRT6_PIM:
+#if MROUTING
error = ip6_mrouter_get(so, sopt);
+#else
+ error = ENOPROTOOPT;
+#endif /* MROUTING */
+ break;
+ case IPV6_CHECKSUM:
+ error = ip6_raw_ctloutput(so, sopt);
break;
default:
error = ip6_ctloutput(so, sopt);
case SOPT_SET:
switch (sopt->sopt_name) {
+#if IPFW2
case IPV6_FW_ADD:
case IPV6_FW_DEL:
case IPV6_FW_FLUSH:
else
error = ENOPROTOOPT;
break;
+#endif
case MRT6_INIT:
case MRT6_DONE:
case MRT6_ADD_MFC:
case MRT6_DEL_MFC:
case MRT6_PIM:
+#if MROUTING
error = ip6_mrouter_set(so, sopt);
+#else
+ error = ENOPROTOOPT;
+#endif
break;
+ case IPV6_CHECKSUM:
+ error = ip6_raw_ctloutput(so, sopt);
+ break;
+
+ case SO_FLUSH:
+ if ((error = sooptcopyin(sopt, &optval, sizeof (optval),
+ sizeof (optval))) != 0)
+ break;
+
+ error = inp_flush(sotoinpcb(so), optval);
+ break;
+
default:
error = ip6_ctloutput(so, sopt);
break;
if (inp == 0)
panic("rip6_detach");
/* xxx: RSVP */
+#if MROUTING
if (so == ip6_mrouter)
ip6_mrouter_done();
+#endif
if (inp->in6p_icmp6filt) {
FREE(inp->in6p_icmp6filt, M_PCB);
inp->in6p_icmp6filt = NULL;
rip6_bind(struct socket *so, struct sockaddr *nam, __unused struct proc *p)
{
struct inpcb *inp = sotoinpcb(so);
- struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
- struct ifaddr *ia = NULL;
+ struct sockaddr_in6 *addr = (struct sockaddr_in6 *)(void *)nam;
+ struct ifaddr *ifa = NULL;
+ struct ifnet *outif = NULL;
if (nam->sa_len != sizeof(*addr))
return EINVAL;
}
#endif
if (!IN6_IS_ADDR_UNSPECIFIED(&addr->sin6_addr) &&
- (ia = ifa_ifwithaddr((struct sockaddr *)addr)) == 0)
+ (ifa = ifa_ifwithaddr((struct sockaddr *)addr)) == 0)
return EADDRNOTAVAIL;
- if (ia &&
- ((struct in6_ifaddr *)ia)->ia6_flags &
- (IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|
- IN6_IFF_DETACHED|IN6_IFF_DEPRECATED)) {
- if (ia) ifafree(ia);
- return(EADDRNOTAVAIL);
+ if (ifa != NULL) {
+ IFA_LOCK(ifa);
+ if (((struct in6_ifaddr *)ifa)->ia6_flags &
+ (IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|
+ IN6_IFF_DETACHED|IN6_IFF_DEPRECATED)) {
+ IFA_UNLOCK(ifa);
+ IFA_REMREF(ifa);
+ return(EADDRNOTAVAIL);
+ }
+ outif = ifa->ifa_ifp;
+ IFA_UNLOCK(ifa);
+ IFA_REMREF(ifa);
}
- if (ia != NULL)
- ifafree(ia);
inp->in6p_laddr = addr->sin6_addr;
+ inp->in6p_last_outifp = outif;
return 0;
}
rip6_connect(struct socket *so, struct sockaddr *nam, __unused struct proc *p)
{
struct inpcb *inp = sotoinpcb(so);
- struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
+ struct sockaddr_in6 *addr = (struct sockaddr_in6 *)(void *)nam;
struct in6_addr *in6a = NULL;
struct in6_addr storage;
int error = 0;
#if ENABLE_DEFAULT_SCOPE
struct sockaddr_in6 tmp;
#endif
+ unsigned int ifscope;
+ struct ifnet *outif = NULL;
if (nam->sa_len != sizeof(*addr))
return EINVAL;
addr->sin6_scope_id = scope6_addr2default(&addr->sin6_addr);
}
#endif
+
+ ifscope = (inp->inp_flags & INP_BOUND_IF) ?
+ inp->inp_boundifp->if_index : IFSCOPE_NONE;
+
/* Source address selection. XXX: need pcblookup? */
- in6a = in6_selectsrc(addr, inp->in6p_outputopts,
- inp->in6p_moptions, &inp->in6p_route,
- &inp->in6p_laddr, &storage, &error);
+ in6a = in6_selectsrc(addr, inp->in6p_outputopts, inp, &inp->in6p_route,
+ NULL, &storage, ifscope, &error);
if (in6a == NULL)
return (error ? error : EADDRNOTAVAIL);
inp->in6p_laddr = *in6a;
inp->in6p_faddr = addr->sin6_addr;
+ if (inp->in6p_route.ro_rt != NULL)
+ outif = inp->in6p_route.ro_rt->rt_ifp;
+ inp->in6p_last_outifp = outif;
soisconnected(so);
return 0;
}
}
static int
-rip6_send(struct socket *so, __unused int flags, struct mbuf *m, struct sockaddr *nam,
- struct mbuf *control, __unused struct proc *p)
+rip6_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
+ struct mbuf *control, struct proc *p)
{
+#pragma unused(flags, p)
struct inpcb *inp = sotoinpcb(so);
struct sockaddr_in6 tmp;
- struct sockaddr_in6 *dst;
+ struct sockaddr_in6 *dst = (struct sockaddr_in6 *)(void *)nam;
/* always copy sockaddr to avoid overwrites */
if (so->so_state & SS_ISCONNECTED) {
m_freem(m);
return ENOTCONN;
}
- tmp = *(struct sockaddr_in6 *)nam;
+ tmp = *(struct sockaddr_in6 *)(void *)nam;
dst = &tmp;
}
#if ENABLE_DEFAULT_SCOPE
dst->sin6_scope_id = scope6_addr2default(&dst->sin6_addr);
}
#endif
- return rip6_output(m, so, dst, control);
+ return rip6_output(m, so, dst, control, 1);
}
struct pr_usrreqs rip6_usrreqs = {
projects / apple / xnu.git / blobdiff