diff options
Diffstat (limited to 'sys/netinet/ip_input.c')
| -rw-r--r-- | sys/netinet/ip_input.c | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index 4841fb1..40dd6bf 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)ip_input.c 8.2 (Berkeley) 1/4/94 - * $Id: ip_input.c,v 1.3 1994/08/02 07:48:38 davidg Exp $ + * $Id: ip_input.c,v 1.4 1994/08/18 22:35:30 wollman Exp $ */ #include <sys/param.h> @@ -56,6 +56,9 @@ #include <netinet/ip_var.h> #include <netinet/ip_icmp.h> +#include <sys/socketvar.h> +struct socket *ip_rsvpd; + #ifndef IPFORWARDING #ifdef GATEWAY #define IPFORWARDING 1 /* forward IP packets not for us */ @@ -237,6 +240,15 @@ next: if (hlen > sizeof (struct ip) && ip_dooptions(m)) goto next; + /* greedy RSVP, snatches any PATH packet of the RSVP protocol and no + * matter if it is destined to another node, or whether it is + * a multicast one, RSVP wants it! and prevents it from being forwarded + * anywhere else. Also checks if the rsvp daemon is running before + * grabbing the packet. + */ + if (ip_rsvpd != NULL && ip->ip_p==IPPROTO_RSVP) + goto ours; + /* * Check our list of addresses, to see if the packet is for us. */ @@ -271,8 +283,6 @@ next: if (IN_MULTICAST(ntohl(ip->ip_dst.s_addr))) { struct in_multi *inm; #ifdef MROUTING - extern struct socket *ip_mrouter; - if (ip_mrouter) { /* * If we are acting as a multicast router, all @@ -287,7 +297,7 @@ next: * ip_output().) */ ip->ip_id = htons(ip->ip_id); - if (ip_mforward(m, m->m_pkthdr.rcvif) != 0) { + if (ip_mforward(ip, m->m_pkthdr.rcvif, m, 0) != 0) { ipstat.ips_cantforward++; m_freem(m); goto next; @@ -1168,3 +1178,25 @@ ip_sysctl(name, namelen, oldp, oldlenp, newp, newlen) } /* NOTREACHED */ } + +int +ip_rsvp_init(struct socket *so) +{ + if (so->so_type != SOCK_RAW || + so->so_proto->pr_protocol != IPPROTO_RSVP) + return EOPNOTSUPP; + + if (ip_rsvpd != NULL) + return EADDRINUSE; + + ip_rsvpd = so; + + return 0; +} + +int +ip_rsvp_done(void) +{ + ip_rsvpd = NULL; + return 0; +} |
