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Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libnetworking/netinet/raw_ip.c | 486 |
1 files changed, 0 insertions, 486 deletions
diff --git a/c/src/lib/libnetworking/netinet/raw_ip.c b/c/src/lib/libnetworking/netinet/raw_ip.c deleted file mode 100644 index 44d58f1844..0000000000 --- a/c/src/lib/libnetworking/netinet/raw_ip.c +++ /dev/null @@ -1,486 +0,0 @@ -/* - * 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. 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 - * 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. - * - * @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 - * $Id$ - */ - -#include <sys/param.h> -#include <sys/queue.h> -#include <sys/malloc.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/protosw.h> -#include <sys/socketvar.h> -#include <sys/errno.h> -#include <sys/systm.h> - -#include <net/if.h> -#include <net/route.h> - -#define _IP_VHL -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <netinet/in_pcb.h> -#include <netinet/in_var.h> -#include <netinet/ip_var.h> -#include <netinet/ip_mroute.h> - -#include <netinet/ip_fw.h> - -#if !defined(COMPAT_IPFW) || COMPAT_IPFW == 1 -#undef COMPAT_IPFW -#define COMPAT_IPFW 1 -#else -#undef COMPAT_IPFW -#endif - -static struct inpcbhead ripcb; -static struct inpcbinfo ripcbinfo; - -/* - * Nominal space allocated to a raw ip socket. - */ -#define RIPSNDQ 8192 -#define RIPRCVQ 8192 - -/* - * Raw interface to IP protocol. - */ - -/* - * Initialize raw connection block q. - */ -void -rip_init() -{ - LIST_INIT(&ripcb); - ripcbinfo.listhead = &ripcb; - /* - * XXX We don't use the hash list for raw IP, but it's easier - * to allocate a one entry hash list than it is to check all - * over the place for hashbase == NULL. - */ - ripcbinfo.hashbase = hashinit(1, M_PCB, &ripcbinfo.hashmask); -} - -static struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; -/* - * Setup generic address and protocol structures - * for raw_input routine, then pass them along with - * mbuf chain. - */ -void -rip_input(m, iphlen) - struct mbuf *m; - int iphlen; -{ - register struct ip *ip = mtod(m, struct ip *); - register struct inpcb *inp; - struct inpcb *last = 0; - struct mbuf *opts = 0; - - ripsrc.sin_addr = ip->ip_src; - for (inp = ripcb.lh_first; inp != NULL; inp = inp->inp_list.le_next) { - if (inp->inp_ip_p && inp->inp_ip_p != ip->ip_p) - continue; - if (inp->inp_laddr.s_addr && - inp->inp_laddr.s_addr != ip->ip_dst.s_addr) - continue; - if (inp->inp_faddr.s_addr && - inp->inp_faddr.s_addr != ip->ip_src.s_addr) - continue; - if (last) { - struct mbuf *n = m_copy(m, 0, (int)M_COPYALL); - if (n) { - 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, - (struct sockaddr *)&ripsrc, n, - opts) == 0) { - /* should notify about lost packet */ - m_freem(n); - if (opts) - m_freem(opts); - } else - sorwakeup(last->inp_socket); - opts = 0; - } - } - last = inp; - } - 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, - (struct sockaddr *)&ripsrc, m, opts) == 0) { - m_freem(m); - if (opts) - m_freem(opts); - } else - sorwakeup(last->inp_socket); - } else { - m_freem(m); - ipstat.ips_noproto++; - ipstat.ips_delivered--; - } -} - -/* - * Generate IP header and pass packet to ip_output. - * Tack on options user may have setup with control call. - */ -int -rip_output(m, so, dst) - register struct mbuf *m; - struct socket *so; - u_long dst; -{ - register struct ip *ip; - register struct inpcb *inp = sotoinpcb(so); - int flags = (so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST; - - /* - * If the user handed us a complete IP packet, use it. - * Otherwise, allocate an mbuf for a header and fill it in. - */ - 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_WAIT); - ip = mtod(m, struct ip *); - ip->ip_tos = 0; - ip->ip_off = 0; - ip->ip_p = inp->inp_ip_p; - ip->ip_len = m->m_pkthdr.len; - ip->ip_src = inp->inp_laddr; - ip->ip_dst.s_addr = dst; - ip->ip_ttl = MAXTTL; - } else { - if (m->m_pkthdr.len > IP_MAXPACKET) { - m_freem(m); - return(EMSGSIZE); - } - ip = mtod(m, struct ip *); - /* don't allow both user specified and setsockopt options, - and don't allow packet length sizes that will crash */ - if (((IP_VHL_HL(ip->ip_vhl) != (sizeof (*ip) >> 2)) - && inp->inp_options) - || (ip->ip_len > m->m_pkthdr.len) - || (ip->ip_len < (IP_VHL_HL(ip->ip_vhl) << 2))) { - m_freem(m); - return EINVAL; - } - if (ip->ip_id == 0) - ip->ip_id = htons(ip_id++); - /* XXX prevent ip_output from overwriting header fields */ - flags |= IP_RAWOUTPUT; - ipstat.ips_rawout++; - } - return (ip_output(m, inp->inp_options, &inp->inp_route, flags, - inp->inp_moptions)); -} - -/* - * Raw IP socket option processing. - */ -int -rip_ctloutput(op, so, level, optname, m) - int op; - struct socket *so; - int level, optname; - struct mbuf **m; -{ - register struct inpcb *inp = sotoinpcb(so); - register int error; - - if (level != IPPROTO_IP) { - if (op == PRCO_SETOPT && *m) - (void)m_free(*m); - return (EINVAL); - } - - switch (optname) { - - case IP_HDRINCL: - error = 0; - if (op == PRCO_SETOPT) { - if (m == 0 || *m == 0 || (*m)->m_len < sizeof (int)) - error = EINVAL; - else if (*mtod(*m, int *)) - inp->inp_flags |= INP_HDRINCL; - else - inp->inp_flags &= ~INP_HDRINCL; - if (*m) - (void)m_free(*m); - } else { - *m = m_get(M_WAIT, MT_SOOPTS); - (*m)->m_len = sizeof (int); - *mtod(*m, int *) = inp->inp_flags & INP_HDRINCL; - } - return (error); - -#ifdef COMPAT_IPFW - case IP_FW_GET: - if (ip_fw_ctl_ptr == NULL || op == PRCO_SETOPT) { - if (*m) (void)m_free(*m); - return(EINVAL); - } - return (*ip_fw_ctl_ptr)(optname, m); - - case IP_FW_ADD: - case IP_FW_DEL: - case IP_FW_FLUSH: - case IP_FW_ZERO: - if (ip_fw_ctl_ptr == NULL || op != PRCO_SETOPT) { - if (*m) (void)m_free(*m); - return(EINVAL); - } - return (*ip_fw_ctl_ptr)(optname, m); - - case IP_NAT: - if (ip_nat_ctl_ptr == NULL) { - if (*m) (void)m_free(*m); - return(EINVAL); - } - return (*ip_nat_ctl_ptr)(op, m); - -#endif - case IP_RSVP_ON: - return ip_rsvp_init(so); - break; - - case IP_RSVP_OFF: - return ip_rsvp_done(); - break; - - case IP_RSVP_VIF_ON: - return ip_rsvp_vif_init(so, *m); - - case IP_RSVP_VIF_OFF: - return ip_rsvp_vif_done(so, *m); - - case MRT_INIT: - case MRT_DONE: - case MRT_ADD_VIF: - case MRT_DEL_VIF: - case MRT_ADD_MFC: - case MRT_DEL_MFC: - case MRT_VERSION: - case MRT_ASSERT: - if (op == PRCO_SETOPT) { - error = ip_mrouter_set(optname, so, *m); - if (*m) - (void)m_free(*m); - } else if (op == PRCO_GETOPT) { - error = ip_mrouter_get(optname, so, m); - } else - error = EINVAL; - return (error); - } - return (ip_ctloutput(op, so, level, optname, m)); -} - -static u_long rip_sendspace = RIPSNDQ; /* XXX sysctl ? */ -static u_long rip_recvspace = RIPRCVQ; /* XXX sysctl ? */ - -/*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 inpcb *inp = sotoinpcb(so); - int s; - - if (req == PRU_CONTROL) - return (in_control(so, (u_long)m, (caddr_t)nam, - (struct ifnet *)control)); - - switch (req) { - - case PRU_ATTACH: - if (inp) - panic("rip_attach"); - if ((so->so_state & SS_PRIV) == 0) { - error = EACCES; - break; - } - s = splnet(); - error = in_pcballoc(so, &ripcbinfo); - splx(s); - if (error) - break; - error = soreserve(so, rip_sendspace, rip_recvspace); - if (error) - break; - inp = (struct inpcb *)so->so_pcb; - inp->inp_ip_p = (int)nam; - break; - - case PRU_DISCONNECT: - if ((so->so_state & SS_ISCONNECTED) == 0) { - error = ENOTCONN; - break; - } - /* FALLTHROUGH */ - case PRU_ABORT: - soisdisconnected(so); - /* FALLTHROUGH */ - case PRU_DETACH: - if (inp == 0) - panic("rip_detach"); - if (so == ip_mrouter) - ip_mrouter_done(); - ip_rsvp_force_done(so); - if (so == ip_rsvpd) - ip_rsvp_done(); - in_pcbdetach(inp); - break; - - case PRU_BIND: - { - struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); - - if (nam->m_len != sizeof(*addr)) { - error = EINVAL; - break; - } - if ((ifnet == 0) || - ((addr->sin_family != AF_INET) && - (addr->sin_family != AF_IMPLINK)) || - (addr->sin_addr.s_addr && - ifa_ifwithaddr((struct sockaddr *)addr) == 0)) { - error = EADDRNOTAVAIL; - break; - } - inp->inp_laddr = addr->sin_addr; - break; - } - case PRU_CONNECT: - { - struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); - - if (nam->m_len != sizeof(*addr)) { - error = EINVAL; - break; - } - if (ifnet == 0) { - error = EADDRNOTAVAIL; - break; - } - if ((addr->sin_family != AF_INET) && - (addr->sin_family != AF_IMPLINK)) { - error = EAFNOSUPPORT; - break; - } - inp->inp_faddr = addr->sin_addr; - soisconnected(so); - break; - } - - case PRU_CONNECT2: - error = EOPNOTSUPP; - break; - - /* - * Mark the connection as being incapable of further input. - */ - case PRU_SHUTDOWN: - socantsendmore(so); - break; - - /* - * Ship a packet out. The appropriate raw output - * routine handles any massaging necessary. - */ - case PRU_SEND: - { - register u_long dst; - - if (so->so_state & SS_ISCONNECTED) { - if (nam) { - error = EISCONN; - break; - } - dst = inp->inp_faddr.s_addr; - } else { - if (nam == NULL) { - error = ENOTCONN; - break; - } - dst = mtod(nam, struct sockaddr_in *)->sin_addr.s_addr; - } - error = rip_output(m, so, dst); - m = NULL; - break; - } - - case PRU_SENSE: - /* - * stat: don't bother with a blocksize. - */ - return (0); - - /* - * Not supported. - */ - case PRU_RCVOOB: - case PRU_RCVD: - case PRU_LISTEN: - case PRU_ACCEPT: - case PRU_SENDOOB: - error = EOPNOTSUPP; - break; - - case PRU_SOCKADDR: - in_setsockaddr(inp, nam); - break; - - case PRU_PEERADDR: - in_setpeeraddr(inp, nam); - break; - - default: - panic("rip_usrreq"); - } - if (m != NULL) - m_freem(m); - return (error); -} |