/* $NetBSD: rtsock.c,v 1.163 2014/08/09 05:33:01 rtr Exp $ */ /* * 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: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 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 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * 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. */ /* * Copyright (c) 1988, 1991, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University 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 REGENTS 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 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * 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. * * @(#)rtsock.c 8.7 (Berkeley) 10/12/95 */ #include __KERNEL_RCSID(0, "$NetBSD: rtsock.c,v 1.163 2014/08/09 05:33:01 rtr Exp $"); #ifdef _KERNEL_OPT #include "opt_inet.h" #include "opt_mpls.h" #include "opt_compat_netbsd.h" #endif #include #include #include #include #include #include #include #include #include #include #include #ifdef RTSOCK_DEBUG #include #endif /* RTSOCK_DEBUG */ #include #include #include #include #if defined(COMPAT_14) || defined(COMPAT_50) #include #include #endif #ifdef COMPAT_RTSOCK #define RTM_XVERSION RTM_OVERSION #define RT_XADVANCE(a,b) RT_OADVANCE(a,b) #define RT_XROUNDUP(n) RT_OROUNDUP(n) #define PF_XROUTE PF_OROUTE #define rt_xmsghdr rt_msghdr50 #define if_xmsghdr if_msghdr /* if_msghdr50 is for RTM_OIFINFO */ #define ifa_xmsghdr ifa_msghdr50 #define if_xannouncemsghdr if_announcemsghdr50 #define COMPATNAME(x) compat_50_ ## x #define DOMAINNAME "oroute" CTASSERT(sizeof(struct ifa_xmsghdr) == 20); DOMAIN_DEFINE(compat_50_routedomain); /* forward declare and add to link set */ #else #define RTM_XVERSION RTM_VERSION #define RT_XADVANCE(a,b) RT_ADVANCE(a,b) #define RT_XROUNDUP(n) RT_ROUNDUP(n) #define PF_XROUTE PF_ROUTE #define rt_xmsghdr rt_msghdr #define if_xmsghdr if_msghdr #define ifa_xmsghdr ifa_msghdr #define if_xannouncemsghdr if_announcemsghdr #define COMPATNAME(x) x #define DOMAINNAME "route" CTASSERT(sizeof(struct ifa_xmsghdr) == 24); #ifdef COMPAT_50 #define COMPATCALL(name, args) compat_50_ ## name args #endif DOMAIN_DEFINE(routedomain); /* forward declare and add to link set */ #undef COMPAT_50 #undef COMPAT_14 #endif #ifndef COMPATCALL #define COMPATCALL(name, args) do { } while (/*CONSTCOND*/ 0) #endif struct route_info COMPATNAME(route_info) = { .ri_dst = { .sa_len = 2, .sa_family = PF_XROUTE, }, .ri_src = { .sa_len = 2, .sa_family = PF_XROUTE, }, .ri_maxqlen = IFQ_MAXLEN, }; #define PRESERVED_RTF (RTF_UP | RTF_GATEWAY | RTF_HOST | RTF_DONE | RTF_MASK) static void COMPATNAME(route_init)(void); static int COMPATNAME(route_output)(struct mbuf *, ...); static int rt_msg2(int, struct rt_addrinfo *, void *, struct rt_walkarg *, int *); static int rt_xaddrs(u_char, const char *, const char *, struct rt_addrinfo *); static struct mbuf *rt_makeifannouncemsg(struct ifnet *, int, int, struct rt_addrinfo *); static void rt_setmetrics(int, const struct rt_xmsghdr *, struct rtentry *); static void rtm_setmetrics(const struct rtentry *, struct rt_xmsghdr *); static void sysctl_net_route_setup(struct sysctllog **); static int sysctl_dumpentry(struct rtentry *, void *); static int sysctl_iflist(int, struct rt_walkarg *, int); static int sysctl_rtable(SYSCTLFN_PROTO); static void rt_adjustcount(int, int); static void rt_adjustcount(int af, int cnt) { struct route_cb * const cb = &COMPATNAME(route_info).ri_cb; cb->any_count += cnt; switch (af) { case AF_INET: cb->ip_count += cnt; return; #ifdef INET6 case AF_INET6: cb->ip6_count += cnt; return; #endif case AF_MPLS: cb->mpls_count += cnt; return; } } static int COMPATNAME(route_attach)(struct socket *so, int proto) { struct rawcb *rp; int s, error; KASSERT(sotorawcb(so) == NULL); rp = kmem_zalloc(sizeof(*rp), KM_SLEEP); rp->rcb_len = sizeof(*rp); so->so_pcb = rp; s = splsoftnet(); if ((error = raw_attach(so, proto)) == 0) { rt_adjustcount(rp->rcb_proto.sp_protocol, 1); rp->rcb_laddr = &COMPATNAME(route_info).ri_src; rp->rcb_faddr = &COMPATNAME(route_info).ri_dst; } splx(s); if (error) { kmem_free(rp, sizeof(*rp)); so->so_pcb = NULL; return error; } soisconnected(so); so->so_options |= SO_USELOOPBACK; KASSERT(solocked(so)); return error; } static void COMPATNAME(route_detach)(struct socket *so) { struct rawcb *rp = sotorawcb(so); int s; KASSERT(rp != NULL); KASSERT(solocked(so)); s = splsoftnet(); rt_adjustcount(rp->rcb_proto.sp_protocol, -1); raw_detach(so); splx(s); } static int COMPATNAME(route_accept)(struct socket *so, struct mbuf *nam) { KASSERT(solocked(so)); panic("route_accept"); return EOPNOTSUPP; } static int COMPATNAME(route_bind)(struct socket *so, struct mbuf *nam, struct lwp *l) { KASSERT(solocked(so)); return EOPNOTSUPP; } static int COMPATNAME(route_listen)(struct socket *so, struct lwp *l) { KASSERT(solocked(so)); return EOPNOTSUPP; } static int COMPATNAME(route_connect)(struct socket *so, struct mbuf *nam, struct lwp *l) { KASSERT(solocked(so)); return EOPNOTSUPP; } static int COMPATNAME(route_connect2)(struct socket *so, struct socket *so2) { KASSERT(solocked(so)); return EOPNOTSUPP; } static int COMPATNAME(route_disconnect)(struct socket *so) { struct rawcb *rp = sotorawcb(so); int s; KASSERT(solocked(so)); KASSERT(rp != NULL); s = splsoftnet(); soisdisconnected(so); raw_disconnect(rp); splx(s); return 0; } static int COMPATNAME(route_shutdown)(struct socket *so) { int s; KASSERT(solocked(so)); /* * Mark the connection as being incapable of further input. */ s = splsoftnet(); socantsendmore(so); splx(s); return 0; } static int COMPATNAME(route_abort)(struct socket *so) { KASSERT(solocked(so)); panic("route_abort"); return EOPNOTSUPP; } static int COMPATNAME(route_ioctl)(struct socket *so, u_long cmd, void *nam, struct ifnet * ifp) { return EOPNOTSUPP; } static int COMPATNAME(route_stat)(struct socket *so, struct stat *ub) { KASSERT(solocked(so)); return 0; } static int COMPATNAME(route_peeraddr)(struct socket *so, struct mbuf *nam) { struct rawcb *rp = sotorawcb(so); KASSERT(solocked(so)); KASSERT(rp != NULL); KASSERT(nam != NULL); if (rp->rcb_faddr == NULL) return ENOTCONN; raw_setpeeraddr(rp, nam); return 0; } static int COMPATNAME(route_sockaddr)(struct socket *so, struct mbuf *nam) { struct rawcb *rp = sotorawcb(so); KASSERT(solocked(so)); KASSERT(rp != NULL); KASSERT(nam != NULL); if (rp->rcb_faddr == NULL) return ENOTCONN; raw_setsockaddr(rp, nam); return 0; } static int COMPATNAME(route_rcvd)(struct socket *so, int flags, struct lwp *l) { KASSERT(solocked(so)); return EOPNOTSUPP; } static int COMPATNAME(route_recvoob)(struct socket *so, struct mbuf *m, int flags) { KASSERT(solocked(so)); return EOPNOTSUPP; } static int COMPATNAME(route_send)(struct socket *so, struct mbuf *m, struct mbuf *nam, struct mbuf *control, struct lwp *l) { int error = 0; int s; KASSERT(solocked(so)); s = splsoftnet(); error = raw_send(so, m, nam, control, l); splx(s); return error; } static int COMPATNAME(route_sendoob)(struct socket *so, struct mbuf *m, struct mbuf *control) { KASSERT(solocked(so)); m_freem(m); m_freem(control); return EOPNOTSUPP; } static int COMPATNAME(route_purgeif)(struct socket *so, struct ifnet *ifp) { panic("route_purgeif"); return EOPNOTSUPP; } static int COMPATNAME(route_usrreq)(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, struct mbuf *control, struct lwp *l) { int s, error = 0; KASSERT(req != PRU_ATTACH); KASSERT(req != PRU_DETACH); KASSERT(req != PRU_ACCEPT); KASSERT(req != PRU_BIND); KASSERT(req != PRU_LISTEN); KASSERT(req != PRU_CONNECT); KASSERT(req != PRU_CONNECT2); KASSERT(req != PRU_DISCONNECT); KASSERT(req != PRU_SHUTDOWN); KASSERT(req != PRU_ABORT); KASSERT(req != PRU_CONTROL); KASSERT(req != PRU_SENSE); KASSERT(req != PRU_PEERADDR); KASSERT(req != PRU_SOCKADDR); KASSERT(req != PRU_RCVD); KASSERT(req != PRU_RCVOOB); KASSERT(req != PRU_SEND); KASSERT(req != PRU_SENDOOB); KASSERT(req != PRU_PURGEIF); s = splsoftnet(); error = raw_usrreq(so, req, m, nam, control, l); splx(s); return error; } /*ARGSUSED*/ int COMPATNAME(route_output)(struct mbuf *m, ...) { struct sockproto proto = { .sp_family = PF_XROUTE, }; struct rt_xmsghdr *rtm = NULL; struct rt_xmsghdr *old_rtm = NULL; struct rtentry *rt = NULL; struct rtentry *saved_nrt = NULL; struct rt_addrinfo info; int len, error = 0; struct ifnet *ifp = NULL; struct ifaddr *ifa = NULL; struct socket *so; va_list ap; sa_family_t family; va_start(ap, m); so = va_arg(ap, struct socket *); va_end(ap); #define senderr(e) do { error = e; goto flush;} while (/*CONSTCOND*/ 0) if (m == NULL || ((m->m_len < sizeof(int32_t)) && (m = m_pullup(m, sizeof(int32_t))) == NULL)) return ENOBUFS; if ((m->m_flags & M_PKTHDR) == 0) panic("%s", __func__); len = m->m_pkthdr.len; if (len < sizeof(*rtm) || len != mtod(m, struct rt_xmsghdr *)->rtm_msglen) { info.rti_info[RTAX_DST] = NULL; senderr(EINVAL); } R_Malloc(rtm, struct rt_xmsghdr *, len); if (rtm == NULL) { info.rti_info[RTAX_DST] = NULL; senderr(ENOBUFS); } m_copydata(m, 0, len, rtm); if (rtm->rtm_version != RTM_XVERSION) { info.rti_info[RTAX_DST] = NULL; senderr(EPROTONOSUPPORT); } rtm->rtm_pid = curproc->p_pid; memset(&info, 0, sizeof(info)); info.rti_addrs = rtm->rtm_addrs; if (rt_xaddrs(rtm->rtm_type, (const char *)(rtm + 1), len + (char *)rtm, &info)) { senderr(EINVAL); } info.rti_flags = rtm->rtm_flags; #ifdef RTSOCK_DEBUG if (info.rti_info[RTAX_DST]->sa_family == AF_INET) { printf("%s: extracted info.rti_info[RTAX_DST] %s\n", __func__, inet_ntoa(((const struct sockaddr_in *) info.rti_info[RTAX_DST])->sin_addr)); } #endif /* RTSOCK_DEBUG */ if (info.rti_info[RTAX_DST] == NULL || (info.rti_info[RTAX_DST]->sa_family >= AF_MAX)) { senderr(EINVAL); } if (info.rti_info[RTAX_GATEWAY] != NULL && (info.rti_info[RTAX_GATEWAY]->sa_family >= AF_MAX)) { senderr(EINVAL); } /* * Verify that the caller has the appropriate privilege; RTM_GET * is the only operation the non-superuser is allowed. */ if (kauth_authorize_network(curlwp->l_cred, KAUTH_NETWORK_ROUTE, 0, rtm, NULL, NULL) != 0) senderr(EACCES); switch (rtm->rtm_type) { case RTM_ADD: if (info.rti_info[RTAX_GATEWAY] == NULL) { senderr(EINVAL); } error = rtrequest1(rtm->rtm_type, &info, &saved_nrt); if (error == 0 && saved_nrt) { rt_setmetrics(rtm->rtm_inits, rtm, saved_nrt); saved_nrt->rt_refcnt--; } break; case RTM_DELETE: error = rtrequest1(rtm->rtm_type, &info, &saved_nrt); if (error == 0) { (rt = saved_nrt)->rt_refcnt++; goto report; } break; case RTM_GET: case RTM_CHANGE: case RTM_LOCK: /* XXX This will mask info.rti_info[RTAX_DST] with * info.rti_info[RTAX_NETMASK] before * searching. It did not used to do that. --dyoung */ error = rtrequest1(RTM_GET, &info, &rt); if (error != 0) senderr(error); if (rtm->rtm_type != RTM_GET) {/* XXX: too grotty */ if (memcmp(info.rti_info[RTAX_DST], rt_getkey(rt), info.rti_info[RTAX_DST]->sa_len) != 0) senderr(ESRCH); if (info.rti_info[RTAX_NETMASK] == NULL && rt_mask(rt) != NULL) senderr(ETOOMANYREFS); } switch (rtm->rtm_type) { case RTM_GET: report: info.rti_info[RTAX_DST] = rt_getkey(rt); info.rti_info[RTAX_GATEWAY] = rt->rt_gateway; info.rti_info[RTAX_NETMASK] = rt_mask(rt); info.rti_info[RTAX_TAG] = rt_gettag(rt); if ((rtm->rtm_addrs & (RTA_IFP | RTA_IFA)) == 0) ; else if ((ifp = rt->rt_ifp) != NULL) { const struct ifaddr *rtifa; info.rti_info[RTAX_IFP] = ifp->if_dl->ifa_addr; /* rtifa used to be simply rt->rt_ifa. * If rt->rt_ifa != NULL, then * rt_get_ifa() != NULL. So this * ought to still be safe. --dyoung */ rtifa = rt_get_ifa(rt); info.rti_info[RTAX_IFA] = rtifa->ifa_addr; #ifdef RTSOCK_DEBUG if (info.rti_info[RTAX_IFA]->sa_family == AF_INET) { printf("%s: copying out RTAX_IFA %s ", __func__, inet_ntoa( ((const struct sockaddr_in *) info.rti_info[RTAX_IFA])->sin_addr) ); printf("for info.rti_info[RTAX_DST] %s " "ifa_getifa %p ifa_seqno %p\n", inet_ntoa( ((const struct sockaddr_in *) info.rti_info[RTAX_DST])->sin_addr), (void *)rtifa->ifa_getifa, rtifa->ifa_seqno); } #endif /* RTSOCK_DEBUG */ if (ifp->if_flags & IFF_POINTOPOINT) { info.rti_info[RTAX_BRD] = rtifa->ifa_dstaddr; } else info.rti_info[RTAX_BRD] = NULL; rtm->rtm_index = ifp->if_index; } else { info.rti_info[RTAX_IFP] = NULL; info.rti_info[RTAX_IFA] = NULL; } (void)rt_msg2(rtm->rtm_type, &info, NULL, NULL, &len); if (len > rtm->rtm_msglen) { old_rtm = rtm; R_Malloc(rtm, struct rt_xmsghdr *, len); if (rtm == NULL) senderr(ENOBUFS); (void)memcpy(rtm, old_rtm, old_rtm->rtm_msglen); } (void)rt_msg2(rtm->rtm_type, &info, rtm, NULL, 0); rtm->rtm_flags = rt->rt_flags; rtm_setmetrics(rt, rtm); rtm->rtm_addrs = info.rti_addrs; break; case RTM_CHANGE: /* * new gateway could require new ifaddr, ifp; * flags may also be different; ifp may be specified * by ll sockaddr when protocol address is ambiguous */ if ((error = rt_getifa(&info)) != 0) senderr(error); if (info.rti_info[RTAX_GATEWAY] && rt_setgate(rt, info.rti_info[RTAX_GATEWAY])) senderr(EDQUOT); if (info.rti_info[RTAX_TAG]) rt_settag(rt, info.rti_info[RTAX_TAG]); /* new gateway could require new ifaddr, ifp; flags may also be different; ifp may be specified by ll sockaddr when protocol address is ambiguous */ if (info.rti_info[RTAX_IFP] && (ifa = ifa_ifwithnet(info.rti_info[RTAX_IFP])) && (ifp = ifa->ifa_ifp) && (info.rti_info[RTAX_IFA] || info.rti_info[RTAX_GATEWAY])) { if (info.rti_info[RTAX_IFA] == NULL || (ifa = ifa_ifwithaddr( info.rti_info[RTAX_IFA])) == NULL) ifa = ifaof_ifpforaddr( info.rti_info[RTAX_IFA] ? info.rti_info[RTAX_IFA] : info.rti_info[RTAX_GATEWAY], ifp); } else if ((info.rti_info[RTAX_IFA] && (ifa = ifa_ifwithaddr(info.rti_info[RTAX_IFA]))) || (info.rti_info[RTAX_GATEWAY] && (ifa = ifa_ifwithroute(rt->rt_flags, rt_getkey(rt), info.rti_info[RTAX_GATEWAY])))) { ifp = ifa->ifa_ifp; } if (ifa) { struct ifaddr *oifa = rt->rt_ifa; if (oifa != ifa) { if (oifa && oifa->ifa_rtrequest) { oifa->ifa_rtrequest(RTM_DELETE, rt, &info); } rt_replace_ifa(rt, ifa); rt->rt_ifp = ifp; } } if (ifp && rt->rt_ifp != ifp) rt->rt_ifp = ifp; rt_setmetrics(rtm->rtm_inits, rtm, rt); if (rt->rt_flags != info.rti_flags) rt->rt_flags = (info.rti_flags & ~PRESERVED_RTF) | (rt->rt_flags & PRESERVED_RTF); if (rt->rt_ifa && rt->rt_ifa->ifa_rtrequest) rt->rt_ifa->ifa_rtrequest(RTM_ADD, rt, &info); /*FALLTHROUGH*/ case RTM_LOCK: rt->rt_rmx.rmx_locks &= ~(rtm->rtm_inits); rt->rt_rmx.rmx_locks |= (rtm->rtm_inits & rtm->rtm_rmx.rmx_locks); break; } break; default: senderr(EOPNOTSUPP); } flush: if (rtm) { if (error) rtm->rtm_errno = error; else rtm->rtm_flags |= RTF_DONE; } family = info.rti_info[RTAX_DST] ? info.rti_info[RTAX_DST]->sa_family : 0; /* We cannot free old_rtm until we have stopped using the * pointers in info, some of which may point to sockaddrs * in old_rtm. */ if (old_rtm != NULL) Free(old_rtm); if (rt) rtfree(rt); { struct rawcb *rp = NULL; /* * Check to see if we don't want our own messages. */ if ((so->so_options & SO_USELOOPBACK) == 0) { if (COMPATNAME(route_info).ri_cb.any_count <= 1) { if (rtm) Free(rtm); m_freem(m); return error; } /* There is another listener, so construct message */ rp = sotorawcb(so); } if (rtm) { m_copyback(m, 0, rtm->rtm_msglen, rtm); if (m->m_pkthdr.len < rtm->rtm_msglen) { m_freem(m); m = NULL; } else if (m->m_pkthdr.len > rtm->rtm_msglen) m_adj(m, rtm->rtm_msglen - m->m_pkthdr.len); Free(rtm); } if (rp) rp->rcb_proto.sp_family = 0; /* Avoid us */ if (family) proto.sp_protocol = family; if (m) raw_input(m, &proto, &COMPATNAME(route_info).ri_src, &COMPATNAME(route_info).ri_dst); if (rp) rp->rcb_proto.sp_family = PF_XROUTE; } return error; } static void rt_setmetrics(int which, const struct rt_xmsghdr *in, struct rtentry *out) { #define metric(f, e) if (which & (f)) out->rt_rmx.e = in->rtm_rmx.e; metric(RTV_RPIPE, rmx_recvpipe); metric(RTV_SPIPE, rmx_sendpipe); metric(RTV_SSTHRESH, rmx_ssthresh); metric(RTV_RTT, rmx_rtt); metric(RTV_RTTVAR, rmx_rttvar); metric(RTV_HOPCOUNT, rmx_hopcount); metric(RTV_MTU, rmx_mtu); metric(RTV_EXPIRE, rmx_expire); #undef metric } static void rtm_setmetrics(const struct rtentry *in, struct rt_xmsghdr *out) { #define metric(e) out->rtm_rmx.e = in->rt_rmx.e; metric(rmx_recvpipe); metric(rmx_sendpipe); metric(rmx_ssthresh); metric(rmx_rtt); metric(rmx_rttvar); metric(rmx_hopcount); metric(rmx_mtu); metric(rmx_expire); #undef metric } static int rt_xaddrs(u_char rtmtype, const char *cp, const char *cplim, struct rt_addrinfo *rtinfo) { const struct sockaddr *sa = NULL; /* Quell compiler warning */ int i; for (i = 0; i < RTAX_MAX && cp < cplim; i++) { if ((rtinfo->rti_addrs & (1 << i)) == 0) continue; rtinfo->rti_info[i] = sa = (const struct sockaddr *)cp; RT_XADVANCE(cp, sa); } /* * Check for extra addresses specified, except RTM_GET asking * for interface info. */ if (rtmtype == RTM_GET) { if (((rtinfo->rti_addrs & (~((1 << RTAX_IFP) | (1 << RTAX_IFA)))) & (~0 << i)) != 0) return 1; } else if ((rtinfo->rti_addrs & (~0 << i)) != 0) return 1; /* Check for bad data length. */ if (cp != cplim) { if (i == RTAX_NETMASK + 1 && sa != NULL && cp - RT_XROUNDUP(sa->sa_len) + sa->sa_len == cplim) /* * The last sockaddr was info.rti_info[RTAX_NETMASK]. * We accept this for now for the sake of old * binaries or third party softwares. */ ; else return 1; } return 0; } static int rt_getlen(int type) { #ifndef COMPAT_RTSOCK CTASSERT(__alignof(struct ifa_msghdr) >= sizeof(uint64_t)); CTASSERT(__alignof(struct if_msghdr) >= sizeof(uint64_t)); CTASSERT(__alignof(struct if_announcemsghdr) >= sizeof(uint64_t)); CTASSERT(__alignof(struct rt_msghdr) >= sizeof(uint64_t)); #endif switch (type) { case RTM_DELADDR: case RTM_NEWADDR: case RTM_CHGADDR: return sizeof(struct ifa_xmsghdr); case RTM_OOIFINFO: #ifdef COMPAT_14 return sizeof(struct if_msghdr14); #else #ifdef DIAGNOSTIC printf("RTM_OOIFINFO\n"); #endif return -1; #endif case RTM_OIFINFO: #ifdef COMPAT_50 return sizeof(struct if_msghdr50); #else #ifdef DIAGNOSTIC printf("RTM_OIFINFO\n"); #endif return -1; #endif case RTM_IFINFO: return sizeof(struct if_xmsghdr); case RTM_IFANNOUNCE: case RTM_IEEE80211: return sizeof(struct if_xannouncemsghdr); default: return sizeof(struct rt_xmsghdr); } } struct mbuf * COMPATNAME(rt_msg1)(int type, struct rt_addrinfo *rtinfo, void *data, int datalen) { struct rt_xmsghdr *rtm; struct mbuf *m; int i; const struct sockaddr *sa; int len, dlen; m = m_gethdr(M_DONTWAIT, MT_DATA); if (m == NULL) return m; MCLAIM(m, &COMPATNAME(routedomain).dom_mowner); if ((len = rt_getlen(type)) == -1) goto out; if (len > MHLEN + MLEN) panic("%s: message too long", __func__); else if (len > MHLEN) { m->m_next = m_get(M_DONTWAIT, MT_DATA); if (m->m_next == NULL) goto out; MCLAIM(m->m_next, m->m_owner); m->m_pkthdr.len = len; m->m_len = MHLEN; m->m_next->m_len = len - MHLEN; } else { m->m_pkthdr.len = m->m_len = len; } m->m_pkthdr.rcvif = NULL; m_copyback(m, 0, datalen, data); if (len > datalen) (void)memset(mtod(m, char *) + datalen, 0, len - datalen); rtm = mtod(m, struct rt_xmsghdr *); for (i = 0; i < RTAX_MAX; i++) { if ((sa = rtinfo->rti_info[i]) == NULL) continue; rtinfo->rti_addrs |= (1 << i); dlen = RT_XROUNDUP(sa->sa_len); m_copyback(m, len, sa->sa_len, sa); if (dlen != sa->sa_len) { /* * Up to 6 + 1 nul's since roundup is to * sizeof(uint64_t) (8 bytes) */ m_copyback(m, len + sa->sa_len, dlen - sa->sa_len, "\0\0\0\0\0\0"); } len += dlen; } if (m->m_pkthdr.len != len) goto out; rtm->rtm_msglen = len; rtm->rtm_version = RTM_XVERSION; rtm->rtm_type = type; return m; out: m_freem(m); return NULL; } /* * rt_msg2 * * fills 'cp' or 'w'.w_tmem with the routing socket message and * returns the length of the message in 'lenp'. * * if walkarg is 0, cp is expected to be 0 or a buffer large enough to hold * the message * otherwise walkarg's w_needed is updated and if the user buffer is * specified and w_needed indicates space exists the information is copied * into the temp space (w_tmem). w_tmem is [re]allocated if necessary, * if the allocation fails ENOBUFS is returned. */ static int rt_msg2(int type, struct rt_addrinfo *rtinfo, void *cpv, struct rt_walkarg *w, int *lenp) { int i; int len, dlen, second_time = 0; char *cp0, *cp = cpv; rtinfo->rti_addrs = 0; again: if ((len = rt_getlen(type)) == -1) return EINVAL; if ((cp0 = cp) != NULL) cp += len; for (i = 0; i < RTAX_MAX; i++) { const struct sockaddr *sa; if ((sa = rtinfo->rti_info[i]) == NULL) continue; rtinfo->rti_addrs |= (1 << i); dlen = RT_XROUNDUP(sa->sa_len); if (cp) { int diff = dlen - sa->sa_len; (void)memcpy(cp, sa, (size_t)sa->sa_len); cp += sa->sa_len; if (diff > 0) { (void)memset(cp, 0, (size_t)diff); cp += diff; } } len += dlen; } if (cp == NULL && w != NULL && !second_time) { struct rt_walkarg *rw = w; rw->w_needed += len; if (rw->w_needed <= 0 && rw->w_where) { if (rw->w_tmemsize < len) { if (rw->w_tmem) free(rw->w_tmem, M_RTABLE); rw->w_tmem = malloc(len, M_RTABLE, M_NOWAIT); if (rw->w_tmem) rw->w_tmemsize = len; else rw->w_tmemsize = 0; } if (rw->w_tmem) { cp = rw->w_tmem; second_time = 1; goto again; } else { rw->w_tmemneeded = len; return ENOBUFS; } } } if (cp) { struct rt_xmsghdr *rtm = (struct rt_xmsghdr *)cp0; rtm->rtm_version = RTM_XVERSION; rtm->rtm_type = type; rtm->rtm_msglen = len; } if (lenp) *lenp = len; return 0; } /* * This routine is called to generate a message from the routing * socket indicating that a redirect has occurred, a routing lookup * has failed, or that a protocol has detected timeouts to a particular * destination. */ void COMPATNAME(rt_missmsg)(int type, const struct rt_addrinfo *rtinfo, int flags, int error) { struct rt_xmsghdr rtm; struct mbuf *m; const struct sockaddr *sa = rtinfo->rti_info[RTAX_DST]; struct rt_addrinfo info = *rtinfo; COMPATCALL(rt_missmsg, (type, rtinfo, flags, error)); if (COMPATNAME(route_info).ri_cb.any_count == 0) return; memset(&rtm, 0, sizeof(rtm)); rtm.rtm_flags = RTF_DONE | flags; rtm.rtm_errno = error; m = COMPATNAME(rt_msg1)(type, &info, &rtm, sizeof(rtm)); if (m == NULL) return; mtod(m, struct rt_xmsghdr *)->rtm_addrs = info.rti_addrs; COMPATNAME(route_enqueue)(m, sa ? sa->sa_family : 0); } /* * This routine is called to generate a message from the routing * socket indicating that the status of a network interface has changed. */ void COMPATNAME(rt_ifmsg)(struct ifnet *ifp) { struct if_xmsghdr ifm; struct mbuf *m; struct rt_addrinfo info; COMPATCALL(rt_ifmsg, (ifp)); if (COMPATNAME(route_info).ri_cb.any_count == 0) return; (void)memset(&info, 0, sizeof(info)); (void)memset(&ifm, 0, sizeof(ifm)); ifm.ifm_index = ifp->if_index; ifm.ifm_flags = ifp->if_flags; ifm.ifm_data = ifp->if_data; ifm.ifm_addrs = 0; m = COMPATNAME(rt_msg1)(RTM_IFINFO, &info, &ifm, sizeof(ifm)); if (m == NULL) return; COMPATNAME(route_enqueue)(m, 0); #ifdef COMPAT_14 compat_14_rt_oifmsg(ifp); #endif #ifdef COMPAT_50 compat_50_rt_oifmsg(ifp); #endif } /* * This is called to generate messages from the routing socket * indicating a network interface has had addresses associated with it. * if we ever reverse the logic and replace messages TO the routing * socket indicate a request to configure interfaces, then it will * be unnecessary as the routing socket will automatically generate * copies of it. */ void COMPATNAME(rt_newaddrmsg)(int cmd, struct ifaddr *ifa, int error, struct rtentry *rt) { #define cmdpass(__cmd, __pass) (((__cmd) << 2) | (__pass)) struct rt_addrinfo info; const struct sockaddr *sa; int pass; struct mbuf *m; struct ifnet *ifp; struct rt_xmsghdr rtm; struct ifa_xmsghdr ifam; int ncmd; KASSERT(ifa != NULL); ifp = ifa->ifa_ifp; COMPATCALL(rt_newaddrmsg, (cmd, ifa, error, rt)); if (COMPATNAME(route_info).ri_cb.any_count == 0) return; for (pass = 1; pass < 3; pass++) { memset(&info, 0, sizeof(info)); switch (cmdpass(cmd, pass)) { case cmdpass(RTM_ADD, 1): case cmdpass(RTM_CHANGE, 1): case cmdpass(RTM_DELETE, 2): case cmdpass(RTM_NEWADDR, 1): case cmdpass(RTM_DELADDR, 1): case cmdpass(RTM_CHGADDR, 1): switch (cmd) { case RTM_ADD: ncmd = RTM_NEWADDR; break; case RTM_DELETE: ncmd = RTM_DELADDR; break; case RTM_CHANGE: ncmd = RTM_CHGADDR; break; default: ncmd = cmd; } info.rti_info[RTAX_IFA] = sa = ifa->ifa_addr; KASSERT(ifp->if_dl != NULL); info.rti_info[RTAX_IFP] = ifp->if_dl->ifa_addr; info.rti_info[RTAX_NETMASK] = ifa->ifa_netmask; info.rti_info[RTAX_BRD] = ifa->ifa_dstaddr; memset(&ifam, 0, sizeof(ifam)); ifam.ifam_index = ifp->if_index; ifam.ifam_metric = ifa->ifa_metric; ifam.ifam_flags = ifa->ifa_flags; m = COMPATNAME(rt_msg1)(ncmd, &info, &ifam, sizeof(ifam)); if (m == NULL) continue; mtod(m, struct ifa_xmsghdr *)->ifam_addrs = info.rti_addrs; break; case cmdpass(RTM_ADD, 2): case cmdpass(RTM_CHANGE, 2): case cmdpass(RTM_DELETE, 1): if (rt == NULL) continue; info.rti_info[RTAX_NETMASK] = rt_mask(rt); info.rti_info[RTAX_DST] = sa = rt_getkey(rt); info.rti_info[RTAX_GATEWAY] = rt->rt_gateway; memset(&rtm, 0, sizeof(rtm)); rtm.rtm_index = ifp->if_index; rtm.rtm_flags |= rt->rt_flags; rtm.rtm_errno = error; m = COMPATNAME(rt_msg1)(cmd, &info, &rtm, sizeof(rtm)); if (m == NULL) continue; mtod(m, struct rt_xmsghdr *)->rtm_addrs = info.rti_addrs; break; default: continue; } #ifdef DIAGNOSTIC if (m == NULL) panic("%s: called with wrong command", __func__); #endif COMPATNAME(route_enqueue)(m, sa ? sa->sa_family : 0); } #undef cmdpass } static struct mbuf * rt_makeifannouncemsg(struct ifnet *ifp, int type, int what, struct rt_addrinfo *info) { struct if_xannouncemsghdr ifan; memset(info, 0, sizeof(*info)); memset(&ifan, 0, sizeof(ifan)); ifan.ifan_index = ifp->if_index; strlcpy(ifan.ifan_name, ifp->if_xname, sizeof(ifan.ifan_name)); ifan.ifan_what = what; return COMPATNAME(rt_msg1)(type, info, &ifan, sizeof(ifan)); } /* * This is called to generate routing socket messages indicating * network interface arrival and departure. */ void COMPATNAME(rt_ifannouncemsg)(struct ifnet *ifp, int what) { struct mbuf *m; struct rt_addrinfo info; COMPATCALL(rt_ifannouncemsg, (ifp, what)); if (COMPATNAME(route_info).ri_cb.any_count == 0) return; m = rt_makeifannouncemsg(ifp, RTM_IFANNOUNCE, what, &info); if (m == NULL) return; COMPATNAME(route_enqueue)(m, 0); } /* * This is called to generate routing socket messages indicating * IEEE80211 wireless events. * XXX we piggyback on the RTM_IFANNOUNCE msg format in a clumsy way. */ void COMPATNAME(rt_ieee80211msg)(struct ifnet *ifp, int what, void *data, size_t data_len) { struct mbuf *m; struct rt_addrinfo info; COMPATCALL(rt_ieee80211msg, (ifp, what, data, data_len)); if (COMPATNAME(route_info).ri_cb.any_count == 0) return; m = rt_makeifannouncemsg(ifp, RTM_IEEE80211, what, &info); if (m == NULL) return; /* * Append the ieee80211 data. Try to stick it in the * mbuf containing the ifannounce msg; otherwise allocate * a new mbuf and append. * * NB: we assume m is a single mbuf. */ if (data_len > M_TRAILINGSPACE(m)) { struct mbuf *n = m_get(M_NOWAIT, MT_DATA); if (n == NULL) { m_freem(m); return; } (void)memcpy(mtod(n, void *), data, data_len); n->m_len = data_len; m->m_next = n; } else if (data_len > 0) { (void)memcpy(mtod(m, uint8_t *) + m->m_len, data, data_len); m->m_len += data_len; } if (m->m_flags & M_PKTHDR) m->m_pkthdr.len += data_len; mtod(m, struct if_xannouncemsghdr *)->ifan_msglen += data_len; COMPATNAME(route_enqueue)(m, 0); } /* * This is used in dumping the kernel table via sysctl(). */ static int sysctl_dumpentry(struct rtentry *rt, void *v) { struct rt_walkarg *w = v; int error = 0, size; struct rt_addrinfo info; if (w->w_op == NET_RT_FLAGS && !(rt->rt_flags & w->w_arg)) return 0; memset(&info, 0, sizeof(info)); info.rti_info[RTAX_DST] = rt_getkey(rt); info.rti_info[RTAX_GATEWAY] = rt->rt_gateway; info.rti_info[RTAX_NETMASK] = rt_mask(rt); info.rti_info[RTAX_TAG] = rt_gettag(rt); if (rt->rt_ifp) { const struct ifaddr *rtifa; info.rti_info[RTAX_IFP] = rt->rt_ifp->if_dl->ifa_addr; /* rtifa used to be simply rt->rt_ifa. If rt->rt_ifa != NULL, * then rt_get_ifa() != NULL. So this ought to still be safe. * --dyoung */ rtifa = rt_get_ifa(rt); info.rti_info[RTAX_IFA] = rtifa->ifa_addr; if (rt->rt_ifp->if_flags & IFF_POINTOPOINT) info.rti_info[RTAX_BRD] = rtifa->ifa_dstaddr; } if ((error = rt_msg2(RTM_GET, &info, 0, w, &size))) return error; if (w->w_where && w->w_tmem && w->w_needed <= 0) { struct rt_xmsghdr *rtm = (struct rt_xmsghdr *)w->w_tmem; rtm->rtm_flags = rt->rt_flags; rtm->rtm_use = rt->rt_use; rtm_setmetrics(rt, rtm); KASSERT(rt->rt_ifp != NULL); rtm->rtm_index = rt->rt_ifp->if_index; rtm->rtm_errno = rtm->rtm_pid = rtm->rtm_seq = 0; rtm->rtm_addrs = info.rti_addrs; if ((error = copyout(rtm, w->w_where, size)) != 0) w->w_where = NULL; else w->w_where = (char *)w->w_where + size; } return error; } static int sysctl_iflist(int af, struct rt_walkarg *w, int type) { struct ifnet *ifp; struct ifaddr *ifa; struct rt_addrinfo info; int len, error = 0; memset(&info, 0, sizeof(info)); IFNET_FOREACH(ifp) { if (w->w_arg && w->w_arg != ifp->if_index) continue; if (IFADDR_EMPTY(ifp)) continue; info.rti_info[RTAX_IFP] = ifp->if_dl->ifa_addr; switch (type) { case NET_RT_IFLIST: error = rt_msg2(RTM_IFINFO, &info, NULL, w, &len); break; #ifdef COMPAT_14 case NET_RT_OOIFLIST: error = rt_msg2(RTM_OOIFINFO, &info, NULL, w, &len); break; #endif #ifdef COMPAT_50 case NET_RT_OIFLIST: error = rt_msg2(RTM_OIFINFO, &info, NULL, w, &len); break; #endif default: panic("sysctl_iflist(1)"); } if (error) return error; info.rti_info[RTAX_IFP] = NULL; if (w->w_where && w->w_tmem && w->w_needed <= 0) { switch (type) { case NET_RT_IFLIST: { struct if_xmsghdr *ifm; ifm = (struct if_xmsghdr *)w->w_tmem; ifm->ifm_index = ifp->if_index; ifm->ifm_flags = ifp->if_flags; ifm->ifm_data = ifp->if_data; ifm->ifm_addrs = info.rti_addrs; error = copyout(ifm, w->w_where, len); if (error) return error; w->w_where = (char *)w->w_where + len; break; } #ifdef COMPAT_14 case NET_RT_OOIFLIST: error = compat_14_iflist(ifp, w, &info, len); if (error) return error; break; #endif #ifdef COMPAT_50 case NET_RT_OIFLIST: error = compat_50_iflist(ifp, w, &info, len); if (error) return error; break; #endif default: panic("sysctl_iflist(2)"); } } IFADDR_FOREACH(ifa, ifp) { if (af && af != ifa->ifa_addr->sa_family) continue; info.rti_info[RTAX_IFA] = ifa->ifa_addr; info.rti_info[RTAX_NETMASK] = ifa->ifa_netmask; info.rti_info[RTAX_BRD] = ifa->ifa_dstaddr; if ((error = rt_msg2(RTM_NEWADDR, &info, 0, w, &len))) return error; if (w->w_where && w->w_tmem && w->w_needed <= 0) { struct ifa_xmsghdr *ifam; ifam = (struct ifa_xmsghdr *)w->w_tmem; ifam->ifam_index = ifa->ifa_ifp->if_index; ifam->ifam_flags = ifa->ifa_flags; ifam->ifam_metric = ifa->ifa_metric; ifam->ifam_addrs = info.rti_addrs; error = copyout(w->w_tmem, w->w_where, len); if (error) return error; w->w_where = (char *)w->w_where + len; } } info.rti_info[RTAX_IFA] = info.rti_info[RTAX_NETMASK] = info.rti_info[RTAX_BRD] = NULL; } return 0; } static int sysctl_rtable(SYSCTLFN_ARGS) { void *where = oldp; size_t *given = oldlenp; const void *new = newp; int i, s, error = EINVAL; u_char af; struct rt_walkarg w; if (namelen == 1 && name[0] == CTL_QUERY) return sysctl_query(SYSCTLFN_CALL(rnode)); if (new) return EPERM; if (namelen != 3) return EINVAL; af = name[0]; w.w_tmemneeded = 0; w.w_tmemsize = 0; w.w_tmem = NULL; again: /* we may return here if a later [re]alloc of the t_mem buffer fails */ if (w.w_tmemneeded) { w.w_tmem = malloc(w.w_tmemneeded, M_RTABLE, M_WAITOK); w.w_tmemsize = w.w_tmemneeded; w.w_tmemneeded = 0; } w.w_op = name[1]; w.w_arg = name[2]; w.w_given = *given; w.w_needed = 0 - w.w_given; w.w_where = where; s = splsoftnet(); switch (w.w_op) { case NET_RT_DUMP: case NET_RT_FLAGS: for (i = 1; i <= AF_MAX; i++) if ((af == 0 || af == i) && (error = rt_walktree(i, sysctl_dumpentry, &w))) break; break; #ifdef COMPAT_14 case NET_RT_OOIFLIST: error = sysctl_iflist(af, &w, w.w_op); break; #endif #ifdef COMPAT_50 case NET_RT_OIFLIST: error = sysctl_iflist(af, &w, w.w_op); break; #endif case NET_RT_IFLIST: error = sysctl_iflist(af, &w, w.w_op); break; } splx(s); /* check to see if we couldn't allocate memory with NOWAIT */ if (error == ENOBUFS && w.w_tmem == 0 && w.w_tmemneeded) goto again; if (w.w_tmem) free(w.w_tmem, M_RTABLE); w.w_needed += w.w_given; if (where) { *given = (char *)w.w_where - (char *)where; if (*given < w.w_needed) return ENOMEM; } else { *given = (11 * w.w_needed) / 10; } return error; } /* * Routing message software interrupt routine */ static void COMPATNAME(route_intr)(void *cookie) { struct sockproto proto = { .sp_family = PF_XROUTE, }; struct route_info * const ri = &COMPATNAME(route_info); struct mbuf *m; int s; mutex_enter(softnet_lock); KERNEL_LOCK(1, NULL); while (!IF_IS_EMPTY(&ri->ri_intrq)) { s = splnet(); IF_DEQUEUE(&ri->ri_intrq, m); splx(s); if (m == NULL) break; proto.sp_protocol = M_GETCTX(m, uintptr_t); raw_input(m, &proto, &ri->ri_src, &ri->ri_dst); } KERNEL_UNLOCK_ONE(NULL); mutex_exit(softnet_lock); } /* * Enqueue a message to the software interrupt routine. */ void COMPATNAME(route_enqueue)(struct mbuf *m, int family) { struct route_info * const ri = &COMPATNAME(route_info); int s, wasempty; s = splnet(); if (IF_QFULL(&ri->ri_intrq)) { IF_DROP(&ri->ri_intrq); m_freem(m); } else { wasempty = IF_IS_EMPTY(&ri->ri_intrq); M_SETCTX(m, (uintptr_t)family); IF_ENQUEUE(&ri->ri_intrq, m); if (wasempty) softint_schedule(ri->ri_sih); } splx(s); } static void COMPATNAME(route_init)(void) { struct route_info * const ri = &COMPATNAME(route_info); #ifndef COMPAT_RTSOCK rt_init(); #endif sysctl_net_route_setup(NULL); ri->ri_intrq.ifq_maxlen = ri->ri_maxqlen; ri->ri_sih = softint_establish(SOFTINT_NET | SOFTINT_MPSAFE, COMPATNAME(route_intr), NULL); } /* * Definitions of protocols supported in the ROUTE domain. */ #ifndef COMPAT_RTSOCK PR_WRAP_USRREQS(route); #else PR_WRAP_USRREQS(compat_50_route); #endif static const struct pr_usrreqs route_usrreqs = { .pr_attach = COMPATNAME(route_attach_wrapper), .pr_detach = COMPATNAME(route_detach_wrapper), .pr_accept = COMPATNAME(route_accept_wrapper), .pr_bind = COMPATNAME(route_bind_wrapper), .pr_listen = COMPATNAME(route_listen_wrapper), .pr_connect = COMPATNAME(route_connect_wrapper), .pr_connect2 = COMPATNAME(route_connect2_wrapper), .pr_disconnect = COMPATNAME(route_disconnect_wrapper), .pr_shutdown = COMPATNAME(route_shutdown_wrapper), .pr_abort = COMPATNAME(route_abort_wrapper), .pr_ioctl = COMPATNAME(route_ioctl_wrapper), .pr_stat = COMPATNAME(route_stat_wrapper), .pr_peeraddr = COMPATNAME(route_peeraddr_wrapper), .pr_sockaddr = COMPATNAME(route_sockaddr_wrapper), .pr_rcvd = COMPATNAME(route_rcvd_wrapper), .pr_recvoob = COMPATNAME(route_recvoob_wrapper), .pr_send = COMPATNAME(route_send_wrapper), .pr_sendoob = COMPATNAME(route_sendoob_wrapper), .pr_purgeif = COMPATNAME(route_purgeif_wrapper), .pr_generic = COMPATNAME(route_usrreq_wrapper), }; static const struct protosw COMPATNAME(route_protosw)[] = { { .pr_type = SOCK_RAW, .pr_domain = &COMPATNAME(routedomain), .pr_flags = PR_ATOMIC|PR_ADDR, .pr_input = raw_input, .pr_output = COMPATNAME(route_output), .pr_ctlinput = raw_ctlinput, .pr_usrreqs = &route_usrreqs, .pr_init = raw_init, }, }; struct domain COMPATNAME(routedomain) = { .dom_family = PF_XROUTE, .dom_name = DOMAINNAME, .dom_init = COMPATNAME(route_init), .dom_protosw = COMPATNAME(route_protosw), .dom_protoswNPROTOSW = &COMPATNAME(route_protosw)[__arraycount(COMPATNAME(route_protosw))], }; static void sysctl_net_route_setup(struct sysctllog **clog) { const struct sysctlnode *rnode = NULL; sysctl_createv(clog, 0, NULL, &rnode, CTLFLAG_PERMANENT, CTLTYPE_NODE, DOMAINNAME, SYSCTL_DESCR("PF_ROUTE information"), NULL, 0, NULL, 0, CTL_NET, PF_XROUTE, CTL_EOL); sysctl_createv(clog, 0, NULL, NULL, CTLFLAG_PERMANENT, CTLTYPE_NODE, "rtable", SYSCTL_DESCR("Routing table information"), sysctl_rtable, 0, NULL, 0, CTL_NET, PF_XROUTE, 0 /* any protocol */, CTL_EOL); sysctl_createv(clog, 0, &rnode, NULL, CTLFLAG_PERMANENT, CTLTYPE_STRUCT, "stats", SYSCTL_DESCR("Routing statistics"), NULL, 0, &rtstat, sizeof(rtstat), CTL_CREATE, CTL_EOL); }