Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. =================================================================== RCS file: /ftp/cvs/cvsroot/src/sys/netinet/raw_ip.c,v rcsdiff: /ftp/cvs/cvsroot/src/sys/netinet/raw_ip.c,v: warning: Unknown phrases like `commitid ...;' are present. retrieving revision 1.11 retrieving revision 1.91 diff -u -p -r1.11 -r1.91 --- src/sys/netinet/raw_ip.c 1994/02/02 05:59:08 1.11 +++ src/sys/netinet/raw_ip.c 2006/09/08 20:58:58 1.91 @@ -1,5 +1,7 @@ +/* $NetBSD: raw_ip.c,v 1.91 2006/09/08 20:58:58 elad Exp $ */ + /* - * Copyright (c) 1982, 1986, 1988 Regents of the University of California. + * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -10,11 +12,36 @@ * 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. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors + * 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) 1982, 1986, 1988, 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. * @@ -30,35 +57,79 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * from: @(#)raw_ip.c 7.8 (Berkeley) 7/25/90 - * $Id: raw_ip.c,v 1.11 1994/02/02 05:59:08 hpeyerl Exp $ + * @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 */ +#include +__KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1.91 2006/09/08 20:58:58 elad Exp $"); + +#include "opt_inet.h" +#include "opt_ipsec.h" +#include "opt_mrouting.h" + #include +#include #include #include #include #include #include #include +#include +#include +#include #include #include -#include #include #include #include #include -#include #include +#include +#include +#include +#include + +#include + +#ifdef IPSEC +#include +#endif /*IPSEC*/ + +#ifdef FAST_IPSEC +#include +#include /* XXX ipsecstat namespace */ +#endif /* FAST_IPSEC*/ + +struct inpcbtable rawcbtable; + +int rip_pcbnotify(struct inpcbtable *, struct in_addr, + struct in_addr, int, int, void (*)(struct inpcb *, int)); +int rip_bind(struct inpcb *, struct mbuf *); +int rip_connect(struct inpcb *, struct mbuf *); +void rip_disconnect(struct inpcb *); + +/* + * Nominal space allocated to a raw ip socket. + */ +#define RIPSNDQ 8192 +#define RIPRCVQ 8192 /* * Raw interface to IP protocol. */ -struct sockaddr_in ripdst = { sizeof(ripdst), AF_INET }; -struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; -struct sockproto ripproto = { PF_INET }; + +/* + * Initialize raw connection block q. + */ +void +rip_init(void) +{ + + in_pcbinit(&rawcbtable, 1, 1); +} /* * Setup generic address and protocol structures @@ -66,233 +137,566 @@ struct sockproto ripproto = { PF_INET }; * mbuf chain. */ void -rip_input(m) - struct mbuf *m; +rip_input(struct mbuf *m, ...) { - register struct ip *ip = mtod(m, struct ip *); + int proto; + struct ip *ip = mtod(m, struct ip *); + struct inpcb_hdr *inph; + struct inpcb *inp; + struct inpcb *last = 0; + struct mbuf *opts = 0; + struct sockaddr_in ripsrc; + va_list ap; + + va_start(ap, m); + (void)va_arg(ap, int); /* ignore value, advance ap */ + proto = va_arg(ap, int); + va_end(ap); - ripproto.sp_protocol = ip->ip_p; - ripdst.sin_addr = ip->ip_dst; + ripsrc.sin_family = AF_INET; + ripsrc.sin_len = sizeof(struct sockaddr_in); ripsrc.sin_addr = ip->ip_src; - if (raw_input(m, &ripproto, (struct sockaddr *)&ripsrc, - (struct sockaddr *)&ripdst) == 0) { - ipstat.ips_noproto++; + ripsrc.sin_port = 0; + bzero((caddr_t)ripsrc.sin_zero, sizeof(ripsrc.sin_zero)); + + /* + * XXX Compatibility: programs using raw IP expect ip_len + * XXX to have the header length subtracted, and in host order. + * XXX ip_off is also expected to be host order. + */ + ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2); + NTOHS(ip->ip_off); + + CIRCLEQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { + inp = (struct inpcb *)inph; + if (inp->inp_af != AF_INET) + continue; + if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) + continue; + if (!in_nullhost(inp->inp_laddr) && + !in_hosteq(inp->inp_laddr, ip->ip_dst)) + continue; + if (!in_nullhost(inp->inp_faddr) && + !in_hosteq(inp->inp_faddr, ip->ip_src)) + continue; + if (last) { + struct mbuf *n; + +#if defined(IPSEC) || defined(FAST_IPSEC) + /* check AH/ESP integrity. */ + if (ipsec4_in_reject_so(m, last->inp_socket)) { + ipsecstat.in_polvio++; + /* do not inject data to pcb */ + } else +#endif /*IPSEC*/ + if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) { + if (last->inp_flags & INP_CONTROLOPTS || + last->inp_socket->so_options & SO_TIMESTAMP) + ip_savecontrol(last, &opts, ip, n); + if (sbappendaddr(&last->inp_socket->so_rcv, + sintosa(&ripsrc), n, opts) == 0) { + /* should notify about lost packet */ + m_freem(n); + if (opts) + m_freem(opts); + } else + sorwakeup(last->inp_socket); + opts = NULL; + } + } + last = inp; + } +#if defined(IPSEC) || defined(FAST_IPSEC) + /* check AH/ESP integrity. */ + if (last && ipsec4_in_reject_so(m, last->inp_socket)) { + m_freem(m); + ipsecstat.in_polvio++; ipstat.ips_delivered--; + /* do not inject data to pcb */ + } else +#endif /*IPSEC*/ + if (last) { + if (last->inp_flags & INP_CONTROLOPTS || + last->inp_socket->so_options & SO_TIMESTAMP) + ip_savecontrol(last, &opts, ip, m); + if (sbappendaddr(&last->inp_socket->so_rcv, + sintosa(&ripsrc), m, opts) == 0) { + m_freem(m); + if (opts) + m_freem(opts); + } else + sorwakeup(last->inp_socket); + } else { + if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { + icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, + 0, 0); + ipstat.ips_noproto++; + ipstat.ips_delivered--; + } else + m_freem(m); } + return; +} + +int +rip_pcbnotify(struct inpcbtable *table, + struct in_addr faddr, struct in_addr laddr, int proto, int errno, + void (*notify)(struct inpcb *, int)) +{ + struct inpcb *inp, *ninp; + int nmatch; + + nmatch = 0; + for (inp = (struct inpcb *)CIRCLEQ_FIRST(&table->inpt_queue); + inp != (struct inpcb *)&table->inpt_queue; + inp = ninp) { + ninp = (struct inpcb *)inp->inp_queue.cqe_next; + if (inp->inp_af != AF_INET) + continue; + if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) + continue; + if (in_hosteq(inp->inp_faddr, faddr) && + in_hosteq(inp->inp_laddr, laddr)) { + (*notify)(inp, errno); + nmatch++; + } + } + + return nmatch; +} + +void * +rip_ctlinput(int cmd, struct sockaddr *sa, void *v) +{ + struct ip *ip = v; + void (*notify)(struct inpcb *, int) = in_rtchange; + int errno; + + if (sa->sa_family != AF_INET || + sa->sa_len != sizeof(struct sockaddr_in)) + return NULL; + if ((unsigned)cmd >= PRC_NCMDS) + return NULL; + errno = inetctlerrmap[cmd]; + if (PRC_IS_REDIRECT(cmd)) + notify = in_rtchange, ip = 0; + else if (cmd == PRC_HOSTDEAD) + ip = 0; + else if (errno == 0) + return NULL; + if (ip) { + rip_pcbnotify(&rawcbtable, satosin(sa)->sin_addr, + ip->ip_src, ip->ip_p, errno, notify); + + /* XXX mapped address case */ + } else + in_pcbnotifyall(&rawcbtable, satosin(sa)->sin_addr, errno, + notify); + return NULL; } /* * Generate IP header and pass packet to ip_output. * Tack on options user may have setup with control call. */ -#define satosin(sa) ((struct sockaddr_in *)(sa)) int -rip_output(m, so) - register struct mbuf *m; - struct socket *so; -{ - register struct ip *ip; - register struct raw_inpcb *rp = sotorawinpcb(so); - register struct sockaddr_in *sin; +rip_output(struct mbuf *m, ...) +{ + struct inpcb *inp; + struct ip *ip; struct mbuf *opts; + int flags; + va_list ap; + + va_start(ap, m); + inp = va_arg(ap, struct inpcb *); + va_end(ap); + + flags = + (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST + | IP_RETURNMTU; /* * If the user handed us a complete IP packet, use it. * Otherwise, allocate an mbuf for a header and fill it in. */ - if (rp->rinp_flags & RINPF_HDRINCL) { - ip = mtod(m, struct ip *); - if (ip->ip_len > m->m_pkthdr.len) - return EMSGSIZE; - ip->ip_len = m->m_pkthdr.len; - opts = NULL; - } else { - M_PREPEND(m, sizeof(struct ip), M_WAIT); + if ((inp->inp_flags & INP_HDRINCL) == 0) { + if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) { + m_freem(m); + return (EMSGSIZE); + } + M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); + if (!m) + return (ENOBUFS); ip = mtod(m, struct ip *); ip->ip_tos = 0; - ip->ip_off = 0; - ip->ip_p = rp->rinp_rcb.rcb_proto.sp_protocol; - ip->ip_len = m->m_pkthdr.len; - if (sin = satosin(rp->rinp_rcb.rcb_laddr)) { - ip->ip_src = sin->sin_addr; - } else - ip->ip_src.s_addr = 0; - if (sin = satosin(rp->rinp_rcb.rcb_faddr)) - ip->ip_dst = sin->sin_addr; + ip->ip_off = htons(0); + ip->ip_p = inp->inp_ip.ip_p; + ip->ip_len = htons(m->m_pkthdr.len); + ip->ip_src = inp->inp_laddr; + ip->ip_dst = inp->inp_faddr; ip->ip_ttl = MAXTTL; - opts = rp->rinp_options; + opts = inp->inp_options; + } else { + if (m->m_pkthdr.len > IP_MAXPACKET) { + m_freem(m); + return (EMSGSIZE); + } + ip = mtod(m, struct ip *); + + /* + * If the mbuf is read-only, we need to allocate + * a new mbuf for the header, since we need to + * modify the header. + */ + if (M_READONLY(m)) { + int hlen = ip->ip_hl << 2; + + m = m_copyup(m, hlen, (max_linkhdr + 3) & ~3); + if (m == NULL) + return (ENOMEM); /* XXX */ + ip = mtod(m, struct ip *); + } + + /* XXX userland passes ip_len and ip_off in host order */ + if (m->m_pkthdr.len != ip->ip_len) { + m_freem(m); + return (EINVAL); + } + HTONS(ip->ip_len); + HTONS(ip->ip_off); + if (ip->ip_id == 0) + ip->ip_id = ip_newid(); + opts = NULL; + /* XXX prevent ip_output from overwriting header fields */ + flags |= IP_RAWOUTPUT; + ipstat.ips_rawout++; } - return (ip_output(m, opts, &rp->rinp_route, - (so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST - , rp->rinp_rcb.rcb_moptions )); + return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, + inp->inp_socket, &inp->inp_errormtu)); } /* * Raw IP socket option processing. */ int -rip_ctloutput(op, so, level, optname, m) - int op; - struct socket *so; - int level, optname; - struct mbuf **m; +rip_ctloutput(int op, struct socket *so, int level, int optname, + struct mbuf **m) { + struct inpcb *inp = sotoinpcb(so); int error = 0; - register struct raw_inpcb *rp = sotorawinpcb(so); - if (level != IPPROTO_IP) - error = EINVAL; - else switch (op) { + if (level != IPPROTO_IP) { + error = ENOPROTOOPT; + if (op == PRCO_SETOPT && *m != 0) + (void) m_free(*m); + } else switch (op) { case PRCO_SETOPT: switch (optname) { - - case IP_OPTIONS: - return (ip_pcbopts(&rp->rinp_options, *m)); - case IP_HDRINCL: - if (m == 0 || *m == 0 || (*m)->m_len < sizeof (int)) { + if (*m == 0 || (*m)->m_len < sizeof (int)) error = EINVAL; - break; + else { + if (*mtod(*m, int *)) + inp->inp_flags |= INP_HDRINCL; + else + inp->inp_flags &= ~INP_HDRINCL; } - if (*mtod(*m, int *)) - rp->rinp_flags |= RINPF_HDRINCL; - else - rp->rinp_flags &= ~RINPF_HDRINCL; - break; - case IP_MULTICAST_IF: - case IP_MULTICAST_TTL: - case IP_MULTICAST_LOOP: - case IP_ADD_MEMBERSHIP: - case IP_DROP_MEMBERSHIP: - error = ip_setmoptions(optname, - &rp->rinp_rcb.rcb_moptions, *m); + if (*m != 0) + (void) m_free(*m); break; - default: + #ifdef MROUTING - error = ip_mrouter_cmd(optname, so, *m); -#else - error = EINVAL; + case MRT_INIT: + case MRT_DONE: + case MRT_ADD_VIF: + case MRT_DEL_VIF: + case MRT_ADD_MFC: + case MRT_DEL_MFC: + case MRT_ASSERT: + case MRT_API_CONFIG: + case MRT_ADD_BW_UPCALL: + case MRT_DEL_BW_UPCALL: + error = ip_mrouter_set(so, optname, m); + break; #endif + + default: + error = ip_ctloutput(op, so, level, optname, m); break; } break; case PRCO_GETOPT: - *m = m_get(M_WAIT, MT_SOOPTS); switch (optname) { - - case IP_OPTIONS: - if (rp->rinp_options) { - (*m)->m_len = rp->rinp_options->m_len; - bcopy(mtod(rp->rinp_options, caddr_t), - mtod(*m, caddr_t), (unsigned)(*m)->m_len); - } else - (*m)->m_len = 0; - break; - case IP_HDRINCL: + *m = m_get(M_WAIT, MT_SOOPTS); + MCLAIM((*m), so->so_mowner); (*m)->m_len = sizeof (int); - *mtod(*m, int *) = rp->rinp_flags & RINPF_HDRINCL; + *mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0; break; - case IP_MULTICAST_IF: - case IP_MULTICAST_TTL: - case IP_MULTICAST_LOOP: - case IP_ADD_MEMBERSHIP: - case IP_DROP_MEMBERSHIP: - error = ip_getmoptions(optname, - rp->rinp_rcb.rcb_moptions, m); + +#ifdef MROUTING + case MRT_VERSION: + case MRT_ASSERT: + case MRT_API_SUPPORT: + case MRT_API_CONFIG: + error = ip_mrouter_get(so, optname, m); break; +#endif + default: - error = EINVAL; - m_freem(*m); - *m = 0; + error = ip_ctloutput(op, so, level, optname, m); break; } break; } - if (op == PRCO_SETOPT && *m) - (void)m_free(*m); return (error); } +int +rip_bind(struct inpcb *inp, struct mbuf *nam) +{ + struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); + + if (nam->m_len != sizeof(*addr)) + return (EINVAL); + if (TAILQ_FIRST(&ifnet) == 0) + return (EADDRNOTAVAIL); + if (addr->sin_family != AF_INET && + addr->sin_family != AF_IMPLINK) + return (EAFNOSUPPORT); + if (!in_nullhost(addr->sin_addr) && + ifa_ifwithaddr(sintosa(addr)) == 0) + return (EADDRNOTAVAIL); + inp->inp_laddr = addr->sin_addr; + return (0); +} + +int +rip_connect(struct inpcb *inp, struct mbuf *nam) +{ + struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); + + if (nam->m_len != sizeof(*addr)) + return (EINVAL); + if (TAILQ_FIRST(&ifnet) == 0) + return (EADDRNOTAVAIL); + if (addr->sin_family != AF_INET && + addr->sin_family != AF_IMPLINK) + return (EAFNOSUPPORT); + inp->inp_faddr = addr->sin_addr; + return (0); +} + +void +rip_disconnect(struct inpcb *inp) +{ + + inp->inp_faddr = zeroin_addr; +} + +u_long rip_sendspace = RIPSNDQ; +u_long rip_recvspace = RIPRCVQ; + /*ARGSUSED*/ int -rip_usrreq(so, req, m, nam, control) - register struct socket *so; - int req; - struct mbuf *m, *nam, *control; -{ - register int error = 0; - register struct raw_inpcb *rp = sotorawinpcb(so); -#if defined(MROUTING) +rip_usrreq(struct socket *so, int req, + struct mbuf *m, struct mbuf *nam, struct mbuf *control, struct lwp *l) +{ + struct inpcb *inp; + int s; + int error = 0; +#ifdef MROUTING extern struct socket *ip_mrouter; #endif + + if (req == PRU_CONTROL) + return (in_control(so, (long)m, (caddr_t)nam, + (struct ifnet *)control, l)); + + if (req == PRU_PURGEIF) { + in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); + in_purgeif((struct ifnet *)control); + in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); + return (0); + } + + s = splsoftnet(); + inp = sotoinpcb(so); +#ifdef DIAGNOSTIC + if (req != PRU_SEND && req != PRU_SENDOOB && control) + panic("rip_usrreq: unexpected control mbuf"); +#endif + if (inp == 0 && req != PRU_ATTACH) { + error = EINVAL; + goto release; + } + switch (req) { case PRU_ATTACH: - if (rp) - panic("rip_attach"); - MALLOC(rp, struct raw_inpcb *, sizeof *rp, M_PCB, M_WAITOK); - if (rp == 0) - return (ENOBUFS); - bzero((caddr_t)rp, sizeof *rp); - so->so_pcb = (caddr_t)rp; + if (inp != 0) { + error = EISCONN; + break; + } + if (l == 0 || (error = kauth_authorize_network(l->l_cred, + KAUTH_NETWORK_SOCKET, + (void *)KAUTH_REQ_NETWORK_SOCKET_RAWSOCK, so, NULL, + NULL))) { + error = EACCES; + break; + } + if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { + error = soreserve(so, rip_sendspace, rip_recvspace); + if (error) + break; + } + error = in_pcballoc(so, &rawcbtable); + if (error) + break; + inp = sotoinpcb(so); + inp->inp_ip.ip_p = (long)nam; break; case PRU_DETACH: - if (rp == 0) - panic("rip_detach"); -#if defined(MROUTING) +#ifdef MROUTING if (so == ip_mrouter) ip_mrouter_done(); #endif - if (rp->rinp_options) - m_freem(rp->rinp_options); - if (rp->rinp_rcb.rcb_moptions) - ip_freemoptions(rp->rinp_rcb.rcb_moptions); - if (rp->rinp_route.ro_rt) - RTFREE(rp->rinp_route.ro_rt); - if (rp->rinp_rcb.rcb_laddr) - rp->rinp_rcb.rcb_laddr = 0; + in_pcbdetach(inp); break; case PRU_BIND: - { - struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); + error = rip_bind(inp, nam); + break; - if (nam->m_len != sizeof(*addr)) - return (EINVAL); - if ((ifnet == 0) || - ((addr->sin_family != AF_INET) && - (addr->sin_family != AF_IMPLINK)) || - (addr->sin_addr.s_addr && - ifa_ifwithaddr((struct sockaddr *)addr) == 0)) - return (EADDRNOTAVAIL); - rp->rinp_rcb.rcb_laddr = (struct sockaddr *)&rp->rinp_laddr; - rp->rinp_laddr = *addr; - return (0); - } - case PRU_CONNECT: - { - struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); + case PRU_LISTEN: + error = EOPNOTSUPP; + break; - if (nam->m_len != sizeof(*addr)) - return (EINVAL); - if (ifnet == 0) - return (EADDRNOTAVAIL); - if ((addr->sin_family != AF_INET) && - (addr->sin_family != AF_IMPLINK)) - return (EAFNOSUPPORT); - rp->rinp_rcb.rcb_faddr = (struct sockaddr *)&rp->rinp_faddr; - rp->rinp_faddr = *addr; + case PRU_CONNECT: + error = rip_connect(inp, nam); + if (error) + break; soisconnected(so); + break; + + case PRU_CONNECT2: + error = EOPNOTSUPP; + break; + + case PRU_DISCONNECT: + soisdisconnected(so); + rip_disconnect(inp); + break; + + /* + * Mark the connection as being incapable of further input. + */ + case PRU_SHUTDOWN: + socantsendmore(so); + break; + + case PRU_RCVD: + error = EOPNOTSUPP; + break; + + /* + * Ship a packet out. The appropriate raw output + * routine handles any massaging necessary. + */ + case PRU_SEND: + if (control && control->m_len) { + m_freem(control); + m_freem(m); + error = EINVAL; + break; + } + { + if (nam) { + if ((so->so_state & SS_ISCONNECTED) != 0) { + error = EISCONN; + goto die; + } + error = rip_connect(inp, nam); + if (error) { + die: + m_freem(m); + break; + } + } else { + if ((so->so_state & SS_ISCONNECTED) == 0) { + error = ENOTCONN; + goto die; + } + } + error = rip_output(m, inp); + if (nam) + rip_disconnect(inp); + } + break; + + case PRU_SENSE: + /* + * stat: don't bother with a blocksize. + */ + splx(s); return (0); - } + + case PRU_RCVOOB: + error = EOPNOTSUPP; + break; + + case PRU_SENDOOB: + m_freem(control); + m_freem(m); + error = EOPNOTSUPP; + break; + + case PRU_SOCKADDR: + in_setsockaddr(inp, nam); + break; + + case PRU_PEERADDR: + in_setpeeraddr(inp, nam); + break; + + default: + panic("rip_usrreq"); } - error = raw_usrreq(so, req, m, nam, control); - if (error && (req == PRU_ATTACH) && so->so_pcb) - free(so->so_pcb, M_PCB); +release: + splx(s); return (error); } + +SYSCTL_SETUP(sysctl_net_inet_raw_setup, "sysctl net.inet.raw subtree setup") +{ + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_NODE, "net", NULL, + NULL, 0, NULL, 0, + CTL_NET, CTL_EOL); + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_NODE, "inet", NULL, + NULL, 0, NULL, 0, + CTL_NET, PF_INET, CTL_EOL); + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_NODE, "raw", + SYSCTL_DESCR("Raw IPv4 settings"), + NULL, 0, NULL, 0, + CTL_NET, PF_INET, IPPROTO_RAW, CTL_EOL); + + sysctl_createv(clog, 0, NULL, NULL, + CTLFLAG_PERMANENT, + CTLTYPE_STRUCT, "pcblist", + SYSCTL_DESCR("Raw IPv4 control block list"), + sysctl_inpcblist, 0, &rawcbtable, 0, + CTL_NET, PF_INET, IPPROTO_RAW, + CTL_CREATE, CTL_EOL); +}