version 1.245.2.4, 2007/08/20 21:27:59 |
version 1.246, 2007/03/12 18:18:36 |
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M_WAITOK, &in_multihash); |
M_WAITOK, &in_multihash); |
ip_mtudisc_timeout_q = rt_timer_queue_create(ip_mtudisc_timeout); |
ip_mtudisc_timeout_q = rt_timer_queue_create(ip_mtudisc_timeout); |
#ifdef GATEWAY |
#ifdef GATEWAY |
ipflow_init(ip_hashsize); |
ipflow_init(); |
#endif |
#endif |
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#ifdef PFIL_HOOKS |
#ifdef PFIL_HOOKS |
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*/ |
*/ |
IPQ_LOCK(); |
IPQ_LOCK(); |
hash = IPREASS_HASH(ip->ip_src.s_addr, ip->ip_id); |
hash = IPREASS_HASH(ip->ip_src.s_addr, ip->ip_id); |
LIST_FOREACH(fp, &ipq[hash], ipq_q) { |
/* XXX LIST_FOREACH(fp, &ipq[hash], ipq_q) */ |
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for (fp = LIST_FIRST(&ipq[hash]); fp != NULL; |
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fp = LIST_NEXT(fp, ipq_q)) { |
if (ip->ip_id == fp->ipq_id && |
if (ip->ip_id == fp->ipq_id && |
in_hosteq(ip->ip_src, fp->ipq_src) && |
in_hosteq(ip->ip_src, fp->ipq_src) && |
in_hosteq(ip->ip_dst, fp->ipq_dst) && |
in_hosteq(ip->ip_dst, fp->ipq_dst) && |
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struct in_ifaddr * |
struct in_ifaddr * |
ip_rtaddr(struct in_addr dst) |
ip_rtaddr(struct in_addr dst) |
{ |
{ |
struct rtentry *rt; |
if (!in_hosteq(dst, satocsin(rtcache_getdst(&ipforward_rt))->sin_addr)) |
union { |
rtcache_free(&ipforward_rt); |
struct sockaddr dst; |
else |
struct sockaddr_in dst4; |
rtcache_check(&ipforward_rt); |
} u; |
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if (ipforward_rt.ro_rt == NULL) { |
sockaddr_in_init(&u.dst4, &dst, 0); |
struct sockaddr_in *sin = satosin(&ipforward_rt.ro_dst); |
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if ((rt = rtcache_lookup(&ipforward_rt, &u.dst)) == NULL) |
sin->sin_family = AF_INET; |
return NULL; |
sin->sin_len = sizeof(*sin); |
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sin->sin_addr = dst; |
return ifatoia(rt->rt_ifa); |
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rtcache_init(&ipforward_rt); |
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if (ipforward_rt.ro_rt == NULL) |
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return NULL; |
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} |
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return ifatoia(ipforward_rt.ro_rt->rt_ifa); |
} |
} |
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/* |
/* |
Line 1834 ip_forward(struct mbuf *m, int srcrt) |
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Line 1841 ip_forward(struct mbuf *m, int srcrt) |
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int error, type = 0, code = 0, destmtu = 0; |
int error, type = 0, code = 0, destmtu = 0; |
struct mbuf *mcopy; |
struct mbuf *mcopy; |
n_long dest; |
n_long dest; |
union { |
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struct sockaddr dst; |
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struct sockaddr_in dst4; |
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} u; |
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/* |
/* |
* We are now in the output path. |
* We are now in the output path. |
Line 1866 ip_forward(struct mbuf *m, int srcrt) |
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Line 1869 ip_forward(struct mbuf *m, int srcrt) |
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return; |
return; |
} |
} |
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sockaddr_in_init(&u.dst4, &ip->ip_dst, 0); |
if (!in_hosteq(ip->ip_dst, |
if ((rt = rtcache_lookup(&ipforward_rt, &u.dst)) == NULL) { |
satocsin(rtcache_getdst(&ipforward_rt))->sin_addr)) |
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_NET, dest, 0); |
rtcache_free(&ipforward_rt); |
return; |
else |
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rtcache_check(&ipforward_rt); |
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if (ipforward_rt.ro_rt == NULL) { |
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struct sockaddr_in *sin = satosin(&ipforward_rt.ro_dst); |
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sin->sin_family = AF_INET; |
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sin->sin_len = sizeof(*sin); |
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sin->sin_addr = ip->ip_dst; |
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rtcache_init(&ipforward_rt); |
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if (ipforward_rt.ro_rt == NULL) { |
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icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_NET, dest, 0); |
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return; |
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} |
} |
} |
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rt = ipforward_rt.ro_rt; |
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/* |
/* |
* Save at most 68 bytes of the packet in case |
* Save at most 68 bytes of the packet in case |
Line 1893 ip_forward(struct mbuf *m, int srcrt) |
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Line 1910 ip_forward(struct mbuf *m, int srcrt) |
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*/ |
*/ |
if (rt->rt_ifp == m->m_pkthdr.rcvif && |
if (rt->rt_ifp == m->m_pkthdr.rcvif && |
(rt->rt_flags & (RTF_DYNAMIC|RTF_MODIFIED)) == 0 && |
(rt->rt_flags & (RTF_DYNAMIC|RTF_MODIFIED)) == 0 && |
!in_nullhost(satocsin(rt_getkey(rt))->sin_addr) && |
!in_nullhost(satosin(rt_key(rt))->sin_addr) && |
ipsendredirects && !srcrt) { |
ipsendredirects && !srcrt) { |
if (rt->rt_ifa && |
if (rt->rt_ifa && |
(ip->ip_src.s_addr & ifatoia(rt->rt_ifa)->ia_subnetmask) == |
(ip->ip_src.s_addr & ifatoia(rt->rt_ifa)->ia_subnetmask) == |
Line 2079 ip_savecontrol(struct inpcb *inp, struct |
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Line 2096 ip_savecontrol(struct inpcb *inp, struct |
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if (inp->inp_flags & INP_RECVIF) { |
if (inp->inp_flags & INP_RECVIF) { |
struct sockaddr_dl sdl; |
struct sockaddr_dl sdl; |
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sockaddr_dl_init(&sdl, (m->m_pkthdr.rcvif != NULL) ? |
sdl.sdl_len = offsetof(struct sockaddr_dl, sdl_data[0]); |
m->m_pkthdr.rcvif->if_index : 0, 0, NULL, 0, NULL, 0); |
sdl.sdl_family = AF_LINK; |
*mp = sbcreatecontrol(&sdl, sdl.sdl_len, IP_RECVIF, IPPROTO_IP); |
sdl.sdl_index = m->m_pkthdr.rcvif ? |
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m->m_pkthdr.rcvif->if_index : 0; |
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sdl.sdl_nlen = sdl.sdl_alen = sdl.sdl_slen = 0; |
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*mp = sbcreatecontrol((void *) &sdl, sdl.sdl_len, |
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IP_RECVIF, IPPROTO_IP); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
} |
} |
Line 2139 sysctl_net_inet_ip_pmtudto(SYSCTLFN_ARGS |
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Line 2160 sysctl_net_inet_ip_pmtudto(SYSCTLFN_ARGS |
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#ifdef GATEWAY |
#ifdef GATEWAY |
/* |
/* |
* sysctl helper routine for net.inet.ip.maxflows. |
* sysctl helper routine for net.inet.ip.maxflows. apparently if |
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* maxflows is even looked up, we "reap flows". |
*/ |
*/ |
static int |
static int |
sysctl_net_inet_ip_maxflows(SYSCTLFN_ARGS) |
sysctl_net_inet_ip_maxflows(SYSCTLFN_ARGS) |
Line 2147 sysctl_net_inet_ip_maxflows(SYSCTLFN_ARG |
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Line 2169 sysctl_net_inet_ip_maxflows(SYSCTLFN_ARG |
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int s; |
int s; |
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s = sysctl_lookup(SYSCTLFN_CALL(rnode)); |
s = sysctl_lookup(SYSCTLFN_CALL(rnode)); |
if (s || newp == NULL) |
if (s) |
return (s); |
return (s); |
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s = splsoftnet(); |
s = splsoftnet(); |
Line 2156 sysctl_net_inet_ip_maxflows(SYSCTLFN_ARG |
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Line 2178 sysctl_net_inet_ip_maxflows(SYSCTLFN_ARG |
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return (0); |
return (0); |
} |
} |
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static int |
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sysctl_net_inet_ip_hashsize(SYSCTLFN_ARGS) |
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{ |
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int error, tmp; |
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struct sysctlnode node; |
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node = *rnode; |
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tmp = ip_hashsize; |
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node.sysctl_data = &tmp; |
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error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
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if (error || newp == NULL) |
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return (error); |
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if ((tmp & (tmp - 1)) == 0 && tmp != 0) { |
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/* |
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* Can only fail due to malloc() |
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*/ |
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if (ipflow_invalidate_all(tmp)) |
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return ENOMEM; |
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} else { |
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/* |
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* EINVAL if not a power of 2 |
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*/ |
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return EINVAL; |
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} |
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return (0); |
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} |
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#endif /* GATEWAY */ |
#endif /* GATEWAY */ |
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Line 2306 SYSCTL_SETUP(sysctl_net_inet_ip_setup, " |
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Line 2299 SYSCTL_SETUP(sysctl_net_inet_ip_setup, " |
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sysctl_net_inet_ip_maxflows, 0, &ip_maxflows, 0, |
sysctl_net_inet_ip_maxflows, 0, &ip_maxflows, 0, |
CTL_NET, PF_INET, IPPROTO_IP, |
CTL_NET, PF_INET, IPPROTO_IP, |
IPCTL_MAXFLOWS, CTL_EOL); |
IPCTL_MAXFLOWS, CTL_EOL); |
sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
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CTLTYPE_INT, "hashsize", |
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SYSCTL_DESCR("Size of hash table for fast forwarding (IPv4)"), |
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sysctl_net_inet_ip_hashsize, 0, &ip_hashsize, 0, |
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CTL_NET, PF_INET, IPPROTO_IP, |
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CTL_CREATE, CTL_EOL); |
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#endif /* GATEWAY */ |
#endif /* GATEWAY */ |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |