+/*
+ * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
+ *
+ * $FreeBSD: src/sys/netinet6/raw_ip6.c,v 1.7.2.4 2001/07/29 19:32:40 ume Exp $
*/
/*
*
* @(#)raw_ip.c 8.2 (Berkeley) 1/4/94
*/
-#if BSD310
-#include "opt_inet.h"
-#endif
-
-#include <stddef.h>
-
#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>
#include <sys/systm.h>
#include <net/if.h>
+#include <net/net_api_stats.h>
#include <net/route.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet/in_systm.h>
+#include <netinet/in_tclass.h>
#include <netinet/ip6.h>
#include <netinet6/ip6_var.h>
-#include <netinet6/ip6_mroute.h>
#include <netinet/icmp6.h>
-#if defined(__FreeBSD__) && __FreeBSD__ >= 3 || defined (__APPLE__)
#include <netinet/in_pcb.h>
-#endif
#include <netinet6/in6_pcb.h>
#include <netinet6/nd6.h>
#include <netinet6/ip6protosw.h>
+#include <netinet6/scope6_var.h>
+#include <netinet6/raw_ip6.h>
#if IPSEC
#include <netinet6/ipsec.h>
+#include <netinet6/ipsec6.h>
#endif /*IPSEC*/
-
-#include "faith.h"
-
-#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
-#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
+#if NECP
+#include <net/necp.h>
+#endif
/*
* Raw interface to IP6 protocol.
*/
-extern struct inpcbhead ripcb;
-extern struct inpcbinfo ripcbinfo;
-extern u_long rip_sendspace;
-extern u_long rip_recvspace;
+extern struct inpcbhead ripcb;
+extern struct inpcbinfo ripcbinfo;
+extern u_int32_t rip_sendspace;
+extern u_int32_t rip_recvspace;
+
+struct rip6stat rip6stat;
/*
* Setup generic address and protocol structures
* mbuf chain.
*/
int
-rip6_input(mp, offp, proto)
- struct mbuf **mp;
- int *offp, proto;
+rip6_input(
+ struct mbuf **mp,
+ int *offp,
+ int proto)
{
struct mbuf *m = *mp;
- register struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
- register struct inpcb *in6p;
+ struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
+ struct inpcb *in6p;
struct inpcb *last = 0;
- struct ip6_recvpktopts opts;
+ struct mbuf *opts = NULL;
struct sockaddr_in6 rip6src;
+ int ret;
+ struct ifnet *ifp = m->m_pkthdr.rcvif;
+
+ /* Expect 32-bit aligned data pointer on strict-align platforms */
+ MBUF_STRICT_DATA_ALIGNMENT_CHECK_32(m);
+
+ rip6stat.rip6s_ipackets++;
-#if defined(NFAITH) && 0 < NFAITH
- if (m->m_pkthdr.rcvif) {
- if (m->m_pkthdr.rcvif->if_type == IFT_FAITH) {
- /* XXX send icmp6 host/port unreach? */
- m_freem(m);
- return IPPROTO_DONE;
- }
- }
-#endif
init_sin6(&rip6src, m); /* general init */
- bzero(&opts, sizeof(opts));
+ lck_rw_lock_shared(ripcbinfo.ipi_lock);
LIST_FOREACH(in6p, &ripcb, inp_list) {
- if ((in6p->in6p_vflag & INP_IPV6) == NULL)
+ if ((in6p->in6p_vflag & INP_IPV6) == 0)
continue;
if (in6p->in6p_ip6_nxt &&
in6p->in6p_ip6_nxt != proto)
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr) &&
!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, &ip6->ip6_src))
continue;
- if (in6p->in6p_cksum != -1
- && in6_cksum(m, ip6->ip6_nxt, *offp,
- m->m_pkthdr.len - *offp)) {
- /* XXX bark something */
+
+ if (inp_restricted_recv(in6p, ifp))
continue;
+
+ if (proto == IPPROTO_ICMPV6 || in6p->in6p_cksum != -1) {
+ rip6stat.rip6s_isum++;
+ if (in6_cksum(m, ip6->ip6_nxt, *offp,
+ m->m_pkthdr.len - *offp)) {
+ rip6stat.rip6s_badsum++;
+ continue;
+ }
}
if (last) {
struct mbuf *n = m_copy(m, 0, (int)M_COPYALL);
+
+#if NECP
+ if (n && !necp_socket_is_allowed_to_send_recv_v6(in6p, 0, 0,
+ &ip6->ip6_dst, &ip6->ip6_src, ifp, NULL, NULL)) {
+ m_freem(n);
+ /* do not inject data into pcb */
+ } else
+#endif /* NECP */
if (n) {
- if (last->in6p_flags & IN6P_CONTROLOPTS ||
- last->in6p_socket->so_options & SO_TIMESTAMP)
- ip6_savecontrol(last, ip6, n, &opts,
- NULL);
+ if ((last->in6p_flags & INP_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.head) == 0) {
- /* should notify about lost packet */
- m_freem(n);
- if (opts.head)
- m_freem(opts.head);
+ n, opts, NULL) == 0) {
+ rip6stat.rip6s_fullsock++;
} else
sorwakeup(last->in6p_socket);
- bzero(&opts, sizeof(opts));
+ opts = NULL;
}
}
last = in6p;
}
+
+#if NECP
+ if (last && !necp_socket_is_allowed_to_send_recv_v6(in6p, 0, 0,
+ &ip6->ip6_dst, &ip6->ip6_src, ifp, NULL, NULL)) {
+ m_freem(m);
+ ip6stat.ip6s_delivered--;
+ /* do not inject data into pcb */
+ } else
+#endif /* NECP */
if (last) {
- if (last->in6p_flags & IN6P_CONTROLOPTS ||
- last->in6p_socket->so_options & SO_TIMESTAMP)
- ip6_savecontrol(last, ip6, m, &opts, NULL);
+ if ((last->in6p_flags & INP_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.head) == 0) {
- m_freem(m);
- if (opts.head)
- m_freem(opts.head);
+ (struct sockaddr *)&rip6src, m, opts, NULL) == 0) {
+ rip6stat.rip6s_fullsock++;
} else
sorwakeup(last->in6p_socket);
} else {
+ rip6stat.rip6s_nosock++;
+ if (m->m_flags & M_MCAST)
+ rip6stat.rip6s_nosockmcast++;
if (proto == IPPROTO_NONE)
m_freem(m);
else {
}
ip6stat.ip6s_delivered--;
}
+
+unlock:
+ lck_rw_done(ripcbinfo.ipi_lock);
+
return IPPROTO_DONE;
}
void
-rip6_ctlinput(cmd, sa, d)
- int cmd;
- struct sockaddr *sa;
- void *d;
+rip6_ctlinput(
+ int cmd,
+ struct sockaddr *sa,
+ void *d,
+ __unused struct ifnet *ifp)
{
- struct sockaddr_in6 sa6;
struct ip6_hdr *ip6;
struct mbuf *m;
+ void *cmdarg = NULL;
int off = 0;
- void (*notify) __P((struct inpcb *, int)) = in6_rtchange;
+ struct ip6ctlparam *ip6cp = NULL;
+ const struct sockaddr_in6 *sa6_src = NULL;
+ void (*notify)(struct inpcb *, int) = in6_rtchange;
if (sa->sa_family != AF_INET6 ||
sa->sa_len != sizeof(struct sockaddr_in6))
if ((unsigned)cmd >= PRC_NCMDS)
return;
- if (PRC_IS_REDIRECT(cmd))
- notify = in6_rtchange, d = NULL;
- else if (cmd == PRC_HOSTDEAD)
+ if (PRC_IS_REDIRECT(cmd)) {
+ notify = in6_rtchange;
+ d = NULL;
+ } else if (cmd == PRC_HOSTDEAD)
d = NULL;
else if (inet6ctlerrmap[cmd] == 0)
return;
/* if the parameter is from icmp6, decode it. */
if (d != NULL) {
- struct ip6ctlparam *ip6cp = (struct ip6ctlparam *)d;
+ ip6cp = (struct ip6ctlparam *)d;
m = ip6cp->ip6c_m;
ip6 = ip6cp->ip6c_ip6;
off = ip6cp->ip6c_off;
+ cmdarg = ip6cp->ip6c_cmdarg;
+ sa6_src = ip6cp->ip6c_src;
} else {
m = NULL;
ip6 = NULL;
+ sa6_src = &sa6_any;
}
- /* translate addresses into internal form */
- sa6 = *(struct sockaddr_in6 *)sa;
- if (IN6_IS_ADDR_LINKLOCAL(&sa6.sin6_addr) && m && m->m_pkthdr.rcvif)
- sa6.sin6_addr.s6_addr16[1] = htons(m->m_pkthdr.rcvif->if_index);
-
- if (ip6) {
- /*
- * XXX: We assume that when IPV6 is non NULL,
- * M and OFF are valid.
- */
- struct in6_addr s;
-
- /* translate addresses into internal form */
- memcpy(&s, &ip6->ip6_src, sizeof(s));
- if (IN6_IS_ADDR_LINKLOCAL(&s))
- s.s6_addr16[1] = htons(m->m_pkthdr.rcvif->if_index);
-
- (void) in6_pcbnotify(&ripcb, (struct sockaddr *)&sa6,
- 0, &s, 0, cmd, notify);
- } else
- (void) in6_pcbnotify(&ripcb, (struct sockaddr *)&sa6, 0,
- &zeroin6_addr, 0, cmd, notify);
+ (void) in6_pcbnotify(&ripcbinfo, sa, 0, (const struct sockaddr *)sa6_src,
+ 0, cmd, cmdarg, notify);
}
/*
* Tack on options user may have setup with control call.
*/
int
-rip6_output(m, so, dstsock, control)
- register struct mbuf *m;
- struct socket *so;
- struct sockaddr_in6 *dstsock;
- struct mbuf *control;
+rip6_output(
+ struct mbuf *m,
+ struct socket *so,
+ struct sockaddr_in6 *dstsock,
+ struct mbuf *control,
+ int israw)
{
struct in6_addr *dst;
struct ip6_hdr *ip6;
struct inpcb *in6p;
u_int plen = m->m_pkthdr.len;
int error = 0;
- struct ip6_pktopts opt, *optp = 0;
+ struct ip6_pktopts opt, *optp = NULL;
+ struct ip6_moptions *im6o = NULL;
struct ifnet *oifp = NULL;
int type = 0, code = 0; /* for ICMPv6 output statistics only */
- int priv = 0;
+ int sotc = SO_TC_UNSPEC;
+ int netsvctype = _NET_SERVICE_TYPE_UNSPEC;
+ struct ip6_out_args ip6oa =
+ { IFSCOPE_NONE, { 0 }, IP6OAF_SELECT_SRCIF, 0, 0, 0 };
+ int flags = IPV6_OUTARGS;
in6p = sotoin6pcb(so);
- priv = 0;
-#if !defined(__APPLE__)
- {
- struct proc *p = current_proc(); /* XXX */
-
- if (p && !suser(p->p_ucred, &p->p_acflag))
- priv = 1;
- }
-#else
- if ((so->so_state & SS_PRIV) != 0)
- priv = 1;
-#endif
+ if (in6p == NULL
+#if NECP
+ || (necp_socket_should_use_flow_divert(in6p))
+#endif /* NECP */
+ ) {
+ if (in6p == NULL)
+ error = EINVAL;
+ else
+ error = EPROTOTYPE;
+ goto bad;
+ }
+ if (dstsock != NULL && IN6_IS_ADDR_V4MAPPED(&dstsock->sin6_addr)) {
+ error = EINVAL;
+ goto bad;
+ }
+
+ if (in6p->inp_flags & INP_BOUND_IF) {
+ ip6oa.ip6oa_boundif = in6p->inp_boundifp->if_index;
+ ip6oa.ip6oa_flags |= IP6OAF_BOUND_IF;
+ }
+ if (INP_NO_CELLULAR(in6p))
+ ip6oa.ip6oa_flags |= IP6OAF_NO_CELLULAR;
+ if (INP_NO_EXPENSIVE(in6p))
+ ip6oa.ip6oa_flags |= IP6OAF_NO_EXPENSIVE;
+ if (INP_AWDL_UNRESTRICTED(in6p))
+ ip6oa.ip6oa_flags |= IP6OAF_AWDL_UNRESTRICTED;
+ if (INP_INTCOPROC_ALLOWED(in6p))
+ ip6oa.ip6oa_flags |= IP6OAF_INTCOPROC_ALLOWED;
+
dst = &dstsock->sin6_addr;
if (control) {
- if ((error = ip6_setpktoptions(control, &opt, priv, 0)) != 0)
+ sotc = so_tc_from_control(control, &netsvctype);
+
+ if ((error = ip6_setpktopts(control, &opt, NULL,
+ SOCK_PROTO(so))) != 0)
goto bad;
optp = &opt;
} else
optp = in6p->in6p_outputopts;
+ if (sotc == SO_TC_UNSPEC) {
+ sotc = so->so_traffic_class;
+ netsvctype = so->so_netsvctype;
+ }
+ ip6oa.ip6oa_sotc = sotc;
+ ip6oa.ip6oa_netsvctype = netsvctype;
/*
* For an ICMPv6 packet, we should know its type and code
* to update statistics.
*/
- if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
+ if (SOCK_PROTO(so) == IPPROTO_ICMPV6) {
struct icmp6_hdr *icmp6;
if (m->m_len < sizeof(struct icmp6_hdr) &&
(m = m_pullup(m, sizeof(struct icmp6_hdr))) == NULL) {
code = icmp6->icmp6_code;
}
- M_PREPEND(m, sizeof(*ip6), M_WAIT);
+ if (in6p->inp_flowhash == 0)
+ in6p->inp_flowhash = inp_calc_flowhash(in6p);
+ /* update flowinfo - RFC 6437 */
+ if (in6p->inp_flow == 0 && in6p->in6p_flags & IN6P_AUTOFLOWLABEL) {
+ in6p->inp_flow &= ~IPV6_FLOWLABEL_MASK;
+ in6p->inp_flow |=
+ (htonl(in6p->inp_flowhash) & IPV6_FLOWLABEL_MASK);
+ }
+
+ M_PREPEND(m, sizeof(*ip6), M_WAIT, 1);
+ if (m == NULL) {
+ error = ENOBUFS;
+ goto bad;
+ }
ip6 = mtod(m, struct ip6_hdr *);
/*
*/
ip6->ip6_dst = *dst;
+ im6o = in6p->in6p_moptions;
+
/*
* If the scope of the destination is link-local, embed the interface
* index in the address.
*
- * XXX advanced-api value overrides sin6_scope_id
+ * XXX advanced-api value overrides sin6_scope_id
*/
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().
*/
+ ifnet_head_lock_shared();
if (optp && (pi = optp->ip6po_pktinfo) && pi->ipi6_ifindex) {
ip6->ip6_dst.s6_addr16[1] = htons(pi->ipi6_ifindex);
oifp = ifindex2ifnet[pi->ipi6_ifindex];
- }
- 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;
+ if (oifp != NULL)
+ ifnet_reference(oifp);
+ } else if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) &&
+ 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) {
- /* boundary check */
- if (dstsock->sin6_scope_id < 0
- || if_index < dstsock->sin6_scope_id) {
+ /*
+ * boundary check
+ *
+ * Sinced stsock->sin6_scope_id is unsigned, we don't
+ * need to check if it's < 0
+ */
+ if (if_index < dstsock->sin6_scope_id) {
error = ENXIO; /* XXX EINVAL? */
+ ifnet_head_done();
goto bad;
}
ip6->ip6_dst.s6_addr16[1]
= htons(dstsock->sin6_scope_id & 0xffff);/*XXX*/
}
+ ifnet_head_done();
}
/*
*/
{
struct in6_addr *in6a;
-
- if ((in6a = in6_selectsrc(dstsock, optp,
- in6p->in6p_moptions,
- &in6p->in6p_route,
- &in6p->in6p_laddr,
- &error)) == 0) {
+ struct in6_addr storage;
+ u_short index = 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)
- oifp = ifindex2ifnet[in6p->in6p_route.ro_rt->rt_ifp->if_index];
+ if (in6p->in6p_route.ro_rt != NULL) {
+ RT_LOCK(in6p->in6p_route.ro_rt);
+ 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();
+ }
}
-
- ip6->ip6_flow = in6p->in6p_flowinfo & IPV6_FLOWINFO_MASK;
- ip6->ip6_vfc |= IPV6_VERSION;
-#if 0 /* ip6_plen will be filled in ip6_output. */
- ip6->ip6_plen = htons((u_short)plen);
-#endif
+ ip6->ip6_flow = (ip6->ip6_flow & ~IPV6_FLOWINFO_MASK) |
+ (in6p->inp_flow & IPV6_FLOWINFO_MASK);
+ ip6->ip6_vfc = (ip6->ip6_vfc & ~IPV6_VERSION_MASK) |
+ (IPV6_VERSION & IPV6_VERSION_MASK);
+ /* ip6_plen will be filled in ip6_output, so not fill it here. */
ip6->ip6_nxt = in6p->in6p_ip6_nxt;
ip6->ip6_hlim = in6_selecthlim(in6p, oifp);
- if (so->so_proto->pr_protocol == IPPROTO_ICMPV6 ||
- in6p->in6p_cksum != -1) {
+ if (SOCK_PROTO(so) == IPPROTO_ICMPV6 || in6p->in6p_cksum != -1) {
struct mbuf *n;
int off;
u_int16_t *p;
-#define offsetof(type, member) ((size_t)(&((type *)0)->member)) /* XXX */
-
/* compute checksum */
- if (so->so_proto->pr_protocol == IPPROTO_ICMPV6)
+ if (SOCK_PROTO(so) == IPPROTO_ICMPV6)
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);
}
+#if NECP
+ {
+ necp_kernel_policy_id policy_id;
+ u_int32_t route_rule_id;
+
+ /*
+ * We need a route to perform NECP route rule checks
+ */
+ if (net_qos_policy_restricted != 0 &&
+ ROUTE_UNUSABLE(&in6p->in6p_route)) {
+ struct sockaddr_in6 to;
+ struct sockaddr_in6 from;
+
+ ROUTE_RELEASE(&in6p->in6p_route);
+
+ bzero(&from, sizeof(struct sockaddr_in6));
+ from.sin6_family = AF_INET6;
+ from.sin6_len = sizeof(struct sockaddr_in6);
+ from.sin6_addr = ip6->ip6_src;
+
+ bzero(&to, sizeof(struct sockaddr_in6));
+ to.sin6_family = AF_INET6;
+ to.sin6_len = sizeof(struct sockaddr_in6);
+ to.sin6_addr = ip6->ip6_dst;
+
+ in6p->in6p_route.ro_dst.sin6_family = AF_INET6;
+ in6p->in6p_route.ro_dst.sin6_len = sizeof(struct sockaddr_in6);
+ ((struct sockaddr_in6 *)(void *)&in6p->in6p_route.ro_dst)->sin6_addr =
+ ip6->ip6_dst;
+
+ rtalloc_scoped((struct route *)&in6p->in6p_route, ip6oa.ip6oa_boundif);
+
+ inp_update_necp_policy(in6p, (struct sockaddr *)&from,
+ (struct sockaddr *)&to, ip6oa.ip6oa_boundif);
+ in6p->inp_policyresult.results.qos_marking_gencount = 0;
+ }
+
+ if (!necp_socket_is_allowed_to_send_recv_v6(in6p, 0, 0,
+ &ip6->ip6_src, &ip6->ip6_dst, NULL, &policy_id, &route_rule_id)) {
+ error = EHOSTUNREACH;
+ goto bad;
+ }
+
+ necp_mark_packet_from_socket(m, in6p, policy_id, route_rule_id);
+
+ if (net_qos_policy_restricted != 0) {
+ necp_socket_update_qos_marking(in6p, in6p->in6p_route.ro_rt,
+ NULL, route_rule_id);
+ }
+ }
+#endif /* NECP */
+ if ((so->so_flags1 & SOF1_QOSMARKING_ALLOWED))
+ ip6oa.ip6oa_flags |= IP6OAF_QOSMARKING_ALLOWED;
+
#if IPSEC
- ipsec_setsocket(m, so);
+ if (in6p->in6p_sp != NULL && ipsec_setsocket(m, so) != 0) {
+ error = ENOBUFS;
+ goto bad;
+ }
#endif /*IPSEC*/
- error = ip6_output(m, optp, &in6p->in6p_route, 0, in6p->in6p_moptions,
- &oifp);
- if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
+ if (ROUTE_UNUSABLE(&in6p->in6p_route))
+ ROUTE_RELEASE(&in6p->in6p_route);
+
+ if (oifp != NULL) {
+ ifnet_release(oifp);
+ oifp = NULL;
+ }
+
+ set_packet_service_class(m, so, sotc, PKT_SCF_IPV6);
+ m->m_pkthdr.pkt_flowsrc = FLOWSRC_INPCB;
+ m->m_pkthdr.pkt_flowid = in6p->inp_flowhash;
+ m->m_pkthdr.pkt_flags |= (PKTF_FLOW_ID | PKTF_FLOW_LOCALSRC |
+ PKTF_FLOW_RAWSOCK);
+ m->m_pkthdr.pkt_proto = in6p->in6p_ip6_nxt;
+
+ 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)
+ ROUTE_RELEASE(&in6p->in6p_route);
+
+ /*
+ * 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;
+ }
+ } else {
+ ROUTE_RELEASE(&in6p->in6p_route);
+ }
+
+ /*
+ * If output interface was cellular/expensive, and this socket is
+ * denied access to it, generate an event.
+ */
+ if (error != 0 && (ip6oa.ip6oa_retflags & IP6OARF_IFDENIED) &&
+ (INP_NO_CELLULAR(in6p) || INP_NO_EXPENSIVE(in6p)))
+ soevent(in6p->inp_socket, (SO_FILT_HINT_LOCKED|
+ SO_FILT_HINT_IFDENIED));
+
+ if (SOCK_PROTO(so) == IPPROTO_ICMPV6) {
if (oifp)
icmp6_ifoutstat_inc(oifp, type, code);
icmp6stat.icp6s_outhist[type]++;
- }
+ } else
+ rip6stat.rip6s_opackets++;
goto freectl;
- bad:
- if (m)
+bad:
+ if (m != NULL)
m_freem(m);
- freectl:
- if (optp == &opt && optp->ip6po_rthdr && optp->ip6po_route.ro_rt)
- RTFREE(optp->ip6po_route.ro_rt);
- if (control) {
+freectl:
+ if (optp == &opt && optp->ip6po_rthdr)
+ ROUTE_RELEASE(&optp->ip6po_route);
+
+ if (control != NULL) {
if (optp == &opt)
- ip6_clearpktopts(optp, 0, -1);
+ ip6_clearpktopts(optp, -1);
m_freem(control);
}
+ if (oifp != NULL)
+ ifnet_release(oifp);
return(error);
}
* Raw IPv6 socket option processing.
*/
int
-rip6_ctloutput(so, sopt)
- struct socket *so;
- struct sockopt *sopt;
+rip6_ctloutput(
+ 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) {
- case MRT6_INIT:
- case MRT6_DONE:
- case MRT6_ADD_MIF:
- case MRT6_DEL_MIF:
- case MRT6_ADD_MFC:
- case MRT6_DEL_MFC:
- case MRT6_PIM:
- error = ip6_mrouter_get(so, sopt);
+ case IPV6_CHECKSUM:
+ error = ip6_raw_ctloutput(so, sopt);
break;
default:
error = ip6_ctloutput(so, sopt);
case SOPT_SET:
switch (sopt->sopt_name) {
- case MRT6_INIT:
- case MRT6_DONE:
- case MRT6_ADD_MIF:
- case MRT6_DEL_MIF:
- case MRT6_ADD_MFC:
- case MRT6_DEL_MFC:
- case MRT6_PIM:
- error = ip6_mrouter_set(so, sopt);
+ 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;
rip6_attach(struct socket *so, int proto, struct proc *p)
{
struct inpcb *inp;
- int error, s;
+ int error;
inp = sotoinpcb(so);
if (inp)
panic("rip6_attach");
- if (p && (error = suser(p->p_ucred, &p->p_acflag)) != 0)
+ if ((error = proc_suser(p)) != 0)
return error;
- if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
- error = soreserve(so, rip_sendspace, rip_recvspace);
- if (error)
- return error;
- }
- s = splnet();
+ error = soreserve(so, rip_sendspace, rip_recvspace);
+ if (error)
+ return error;
error = in_pcballoc(so, &ripcbinfo, p);
- splx(s);
if (error)
return error;
inp = (struct inpcb *)so->so_pcb;
inp->inp_vflag |= INP_IPV6;
- inp->in6p_ip6_nxt = (long)proto;
+ inp->in6p_ip6_nxt = (char)proto;
inp->in6p_hops = -1; /* use kernel default */
inp->in6p_cksum = -1;
-#if IPSEC
- error = ipsec_init_policy(so, &inp->in6p_sp);
- if (error != 0) {
- in6_pcbdetach(inp);
- return (error);
- }
-#endif /*IPSEC*/
MALLOC(inp->in6p_icmp6filt, struct icmp6_filter *,
- sizeof(struct icmp6_filter), M_PCB, M_NOWAIT);
-
+ sizeof(struct icmp6_filter), M_PCB, M_WAITOK);
if (inp->in6p_icmp6filt == NULL)
- return(ENOBUFS);
-
+ return (ENOMEM);
ICMP6_FILTER_SETPASSALL(inp->in6p_icmp6filt);
return 0;
}
inp = sotoinpcb(so);
if (inp == 0)
panic("rip6_detach");
- if (so == ip6_mrouter)
- ip6_mrouter_done();
/* xxx: RSVP */
if (inp->in6p_icmp6filt) {
FREE(inp->in6p_icmp6filt, M_PCB);
static int
rip6_bind(struct socket *so, struct sockaddr *nam, struct proc *p)
{
+#pragma unused(p)
struct inpcb *inp = sotoinpcb(so);
- struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
- struct ifaddr *ia = NULL;
+ struct sockaddr_in6 sin6;
+ struct ifaddr *ifa = NULL;
+ struct ifnet *outif = NULL;
+ int error;
- if (nam->sa_len != sizeof(*addr))
- return EINVAL;
+ if (inp == NULL
+#if NECP
+ || (necp_socket_should_use_flow_divert(inp))
+#endif /* NECP */
+ )
+ return (inp == NULL ? EINVAL : EPROTOTYPE);
- if (TAILQ_EMPTY(&ifnet) || addr->sin6_family != AF_INET6)
- return EADDRNOTAVAIL;
- if (!IN6_IS_ADDR_UNSPECIFIED(&addr->sin6_addr) &&
- (ia = 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)) {
- return(EADDRNOTAVAIL);
+ if (nam->sa_len != sizeof (struct sockaddr_in6))
+ return (EINVAL);
+
+ if (TAILQ_EMPTY(&ifnet_head) || SIN6(nam)->sin6_family != AF_INET6)
+ return (EADDRNOTAVAIL);
+
+ bzero(&sin6, sizeof (sin6));
+ *(&sin6) = *SIN6(nam);
+
+ if ((error = sa6_embedscope(&sin6, ip6_use_defzone)) != 0)
+ return (error);
+
+ /* Sanitize local copy for address searches */
+ sin6.sin6_flowinfo = 0;
+ sin6.sin6_scope_id = 0;
+ sin6.sin6_port = 0;
+
+ if (!IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr) &&
+ (ifa = ifa_ifwithaddr(SA(&sin6))) == 0)
+ 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);
}
- inp->in6p_laddr = addr->sin6_addr;
- return 0;
+ inp->in6p_laddr = sin6.sin6_addr;
+ inp->in6p_last_outifp = outif;
+
+ return (0);
}
static int
-rip6_connect(struct socket *so, struct sockaddr *nam, struct proc *p)
+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 (inp == NULL
+#if NECP
+ || (necp_socket_should_use_flow_divert(inp))
+#endif /* NECP */
+ )
+ return (inp == NULL ? EINVAL : EPROTOTYPE);
if (nam->sa_len != sizeof(*addr))
return EINVAL;
- if (TAILQ_EMPTY(&ifnet))
+ if (TAILQ_EMPTY(&ifnet_head))
return EADDRNOTAVAIL;
if (addr->sin6_family != AF_INET6)
return EAFNOSUPPORT;
+ if (!(so->so_flags1 & SOF1_CONNECT_COUNTED)) {
+ so->so_flags1 |= SOF1_CONNECT_COUNTED;
+ INC_ATOMIC_INT64_LIM(net_api_stats.nas_socket_inet6_dgram_connected);
+ }
+
+#if ENABLE_DEFAULT_SCOPE
+ if (addr->sin6_scope_id == 0) { /* not change if specified */
+ /* avoid overwrites */
+ tmp = *addr;
+ addr = &tmp;
+ addr->sin6_scope_id = scope6_addr2default(&addr->sin6_addr);
+ }
+#endif
+
+ /* KAME hack: embed scopeid */
+ if (in6_embedscope(&SIN6(nam)->sin6_addr, SIN6(nam), inp, NULL, NULL) != 0)
+ return (EINVAL);
+
+ 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, &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, int flags, struct mbuf *m, struct sockaddr *nam,
- struct mbuf *control, struct proc *p)
+ 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;
+ int error = 0;
+
+ if (inp == NULL
+#if NECP
+ || (necp_socket_should_use_flow_divert(inp))
+#endif /* NECP */
+ ) {
+ if (inp == NULL)
+ error = EINVAL;
+ else
+ error = EPROTOTYPE;
+ goto bad;
+ }
+ /* always copy sockaddr to avoid overwrites */
if (so->so_state & SS_ISCONNECTED) {
- if (nam) {
- m_freem(m);
- return EISCONN;
+ if (nam != NULL) {
+ error = EISCONN;
+ goto bad;
}
/* XXX */
bzero(&tmp, sizeof(tmp));
dst = &tmp;
} else {
if (nam == NULL) {
- m_freem(m);
- return ENOTCONN;
+ error = ENOTCONN;
+ goto bad;
}
- dst = (struct sockaddr_in6 *)nam;
+ tmp = *(struct sockaddr_in6 *)(void *)nam;
+ dst = &tmp;
}
- return rip6_output(m, so, dst, control);
+#if ENABLE_DEFAULT_SCOPE
+ if (dst->sin6_scope_id == 0) { /* not change if specified */
+ dst->sin6_scope_id = scope6_addr2default(&dst->sin6_addr);
+ }
+#endif
+ return (rip6_output(m, so, dst, control, 1));
+
+bad:
+ VERIFY(error != 0);
+
+ if (m != NULL)
+ m_freem(m);
+ if (control != NULL)
+ m_freem(control);
+
+ return (error);
}
struct pr_usrreqs rip6_usrreqs = {
- rip6_abort, pru_accept_notsupp, rip6_attach, rip6_bind, rip6_connect,
- pru_connect2_notsupp, in6_control, rip6_detach, rip6_disconnect,
- pru_listen_notsupp, in6_setpeeraddr, pru_rcvd_notsupp,
- pru_rcvoob_notsupp, rip6_send, pru_sense_null, rip6_shutdown,
- in6_setsockaddr, sosend, soreceive, sopoll
+ .pru_abort = rip6_abort,
+ .pru_attach = rip6_attach,
+ .pru_bind = rip6_bind,
+ .pru_connect = rip6_connect,
+ .pru_control = in6_control,
+ .pru_detach = rip6_detach,
+ .pru_disconnect = rip6_disconnect,
+ .pru_peeraddr = in6_getpeeraddr,
+ .pru_send = rip6_send,
+ .pru_shutdown = rip6_shutdown,
+ .pru_sockaddr = in6_getsockaddr,
+ .pru_sosend = sosend,
+ .pru_soreceive = soreceive,
+};
+
+__private_extern__ struct pr_usrreqs icmp6_dgram_usrreqs = {
+ .pru_abort = rip6_abort,
+ .pru_attach = icmp6_dgram_attach,
+ .pru_bind = rip6_bind,
+ .pru_connect = rip6_connect,
+ .pru_control = in6_control,
+ .pru_detach = rip6_detach,
+ .pru_disconnect = rip6_disconnect,
+ .pru_peeraddr = in6_getpeeraddr,
+ .pru_send = icmp6_dgram_send,
+ .pru_shutdown = rip6_shutdown,
+ .pru_sockaddr = in6_getsockaddr,
+ .pru_sosend = sosend,
+ .pru_soreceive = soreceive,
};
projects / apple / xnu.git / blobdiff