| version 1.262, 2008/02/06 03:20:51 |
version 1.262.6.2, 2008/06/02 13:24:24 |
|
|
| * 2. Redistributions in binary form must reproduce the above copyright |
* 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
* notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
* 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 NetBSD |
|
| * Foundation, Inc. and its contributors. |
|
| * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| Line 135 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 128 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| #include <netinet/in_proto.h> |
#include <netinet/in_proto.h> |
| #include <netinet/in_var.h> |
#include <netinet/in_var.h> |
| #include <netinet/ip_var.h> |
#include <netinet/ip_var.h> |
| |
#include <netinet/ip_private.h> |
| #include <netinet/ip_icmp.h> |
#include <netinet/ip_icmp.h> |
| /* just for gif_ttl */ |
/* just for gif_ttl */ |
| #include <netinet/in_gif.h> |
#include <netinet/in_gif.h> |
| Line 148 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 142 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| |
|
| #ifdef IPSEC |
#ifdef IPSEC |
| #include <netinet6/ipsec.h> |
#include <netinet6/ipsec.h> |
| |
#include <netinet6/ipsec_private.h> |
| #include <netkey/key.h> |
#include <netkey/key.h> |
| #endif |
#endif |
| #ifdef FAST_IPSEC |
#ifdef FAST_IPSEC |
| Line 230 u_long in_multihash; /* size of hash |
|
| Line 225 u_long in_multihash; /* size of hash |
|
| int in_multientries; /* total number of addrs */ |
int in_multientries; /* total number of addrs */ |
| struct in_multihashhead *in_multihashtbl; |
struct in_multihashhead *in_multihashtbl; |
| struct ifqueue ipintrq; |
struct ifqueue ipintrq; |
| struct ipstat ipstat; |
|
| uint16_t ip_id; |
uint16_t ip_id; |
| |
|
| |
percpu_t *ipstat_percpu; |
| |
|
| #ifdef PFIL_HOOKS |
#ifdef PFIL_HOOKS |
| struct pfil_head inet_pfil_hook; |
struct pfil_head inet_pfil_hook; |
| #endif |
#endif |
|
|
| ip_nmbclusters_changed(); |
ip_nmbclusters_changed(); |
| |
|
| TAILQ_INIT(&in_ifaddrhead); |
TAILQ_INIT(&in_ifaddrhead); |
| in_ifaddrhashtbl = hashinit(IN_IFADDR_HASH_SIZE, HASH_LIST, M_IFADDR, |
in_ifaddrhashtbl = hashinit(IN_IFADDR_HASH_SIZE, HASH_LIST, true, |
| M_WAITOK, &in_ifaddrhash); |
&in_ifaddrhash); |
| in_multihashtbl = hashinit(IN_IFADDR_HASH_SIZE, HASH_LIST, M_IPMADDR, |
in_multihashtbl = hashinit(IN_IFADDR_HASH_SIZE, HASH_LIST, true, |
| M_WAITOK, &in_multihash); |
&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(ip_hashsize); |
|
|
| MOWNER_ATTACH(&ip_tx_mowner); |
MOWNER_ATTACH(&ip_tx_mowner); |
| MOWNER_ATTACH(&ip_rx_mowner); |
MOWNER_ATTACH(&ip_rx_mowner); |
| #endif /* MBUFTRACE */ |
#endif /* MBUFTRACE */ |
| |
|
| |
ipstat_percpu = percpu_alloc(sizeof(uint64_t) * IP_NSTATS); |
| } |
} |
| |
|
| struct sockaddr_in ipaddr = { |
struct sockaddr_in ipaddr = { |
|
|
| int s; |
int s; |
| struct mbuf *m; |
struct mbuf *m; |
| |
|
| |
mutex_enter(softnet_lock); |
| |
KERNEL_LOCK(1, NULL); |
| while (!IF_IS_EMPTY(&ipintrq)) { |
while (!IF_IS_EMPTY(&ipintrq)) { |
| s = splnet(); |
s = splnet(); |
| IF_DEQUEUE(&ipintrq, m); |
IF_DEQUEUE(&ipintrq, m); |
| splx(s); |
splx(s); |
| if (m == 0) |
if (m == NULL) |
| return; |
break; |
| ip_input(m); |
ip_input(m); |
| } |
} |
| |
KERNEL_UNLOCK_ONE(NULL); |
| |
mutex_exit(softnet_lock); |
| } |
} |
| |
|
| /* |
/* |
| Line 511 ip_input(struct mbuf *m) |
|
| Line 513 ip_input(struct mbuf *m) |
|
| */ |
*/ |
| if (TAILQ_FIRST(&in_ifaddrhead) == 0) |
if (TAILQ_FIRST(&in_ifaddrhead) == 0) |
| goto bad; |
goto bad; |
| ipstat.ips_total++; |
IP_STATINC(IP_STAT_TOTAL); |
| /* |
/* |
| * If the IP header is not aligned, slurp it up into a new |
* If the IP header is not aligned, slurp it up into a new |
| * mbuf with space for link headers, in the event we forward |
* mbuf with space for link headers, in the event we forward |
| Line 522 ip_input(struct mbuf *m) |
|
| Line 524 ip_input(struct mbuf *m) |
|
| if ((m = m_copyup(m, sizeof(struct ip), |
if ((m = m_copyup(m, sizeof(struct ip), |
| (max_linkhdr + 3) & ~3)) == NULL) { |
(max_linkhdr + 3) & ~3)) == NULL) { |
| /* XXXJRT new stat, please */ |
/* XXXJRT new stat, please */ |
| ipstat.ips_toosmall++; |
IP_STATINC(IP_STAT_TOOSMALL); |
| return; |
return; |
| } |
} |
| } else if (__predict_false(m->m_len < sizeof (struct ip))) { |
} else if (__predict_false(m->m_len < sizeof (struct ip))) { |
| if ((m = m_pullup(m, sizeof (struct ip))) == NULL) { |
if ((m = m_pullup(m, sizeof (struct ip))) == NULL) { |
| ipstat.ips_toosmall++; |
IP_STATINC(IP_STAT_TOOSMALL); |
| return; |
return; |
| } |
} |
| } |
} |
| ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
| if (ip->ip_v != IPVERSION) { |
if (ip->ip_v != IPVERSION) { |
| ipstat.ips_badvers++; |
IP_STATINC(IP_STAT_BADVERS); |
| goto bad; |
goto bad; |
| } |
} |
| hlen = ip->ip_hl << 2; |
hlen = ip->ip_hl << 2; |
| if (hlen < sizeof(struct ip)) { /* minimum header length */ |
if (hlen < sizeof(struct ip)) { /* minimum header length */ |
| ipstat.ips_badhlen++; |
IP_STATINC(IP_STAT_BADHLEN); |
| goto bad; |
goto bad; |
| } |
} |
| if (hlen > m->m_len) { |
if (hlen > m->m_len) { |
| if ((m = m_pullup(m, hlen)) == 0) { |
if ((m = m_pullup(m, hlen)) == 0) { |
| ipstat.ips_badhlen++; |
IP_STATINC(IP_STAT_BADHLEN); |
| return; |
return; |
| } |
} |
| ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
| Line 554 ip_input(struct mbuf *m) |
|
| Line 556 ip_input(struct mbuf *m) |
|
| * not allowed. |
* not allowed. |
| */ |
*/ |
| if (IN_MULTICAST(ip->ip_src.s_addr)) { |
if (IN_MULTICAST(ip->ip_src.s_addr)) { |
| ipstat.ips_badaddr++; |
IP_STATINC(IP_STAT_BADADDR); |
| goto bad; |
goto bad; |
| } |
} |
| |
|
| Line 562 ip_input(struct mbuf *m) |
|
| Line 564 ip_input(struct mbuf *m) |
|
| if ((ntohl(ip->ip_dst.s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET || |
if ((ntohl(ip->ip_dst.s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET || |
| (ntohl(ip->ip_src.s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) { |
(ntohl(ip->ip_src.s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) { |
| if ((m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) == 0) { |
if ((m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) == 0) { |
| ipstat.ips_badaddr++; |
IP_STATINC(IP_STAT_BADADDR); |
| goto bad; |
goto bad; |
| } |
} |
| } |
} |
| Line 600 ip_input(struct mbuf *m) |
|
| Line 602 ip_input(struct mbuf *m) |
|
| * Check for additional length bogosity |
* Check for additional length bogosity |
| */ |
*/ |
| if (len < hlen) { |
if (len < hlen) { |
| ipstat.ips_badlen++; |
IP_STATINC(IP_STAT_BADLEN); |
| goto bad; |
goto bad; |
| } |
} |
| |
|
| Line 611 ip_input(struct mbuf *m) |
|
| Line 613 ip_input(struct mbuf *m) |
|
| * Drop packet if shorter than we expect. |
* Drop packet if shorter than we expect. |
| */ |
*/ |
| if (m->m_pkthdr.len < len) { |
if (m->m_pkthdr.len < len) { |
| ipstat.ips_tooshort++; |
IP_STATINC(IP_STAT_TOOSHORT); |
| goto bad; |
goto bad; |
| } |
} |
| if (m->m_pkthdr.len > len) { |
if (m->m_pkthdr.len > len) { |
| Line 780 ip_input(struct mbuf *m) |
|
| Line 782 ip_input(struct mbuf *m) |
|
| * ip_output().) |
* ip_output().) |
| */ |
*/ |
| if (ip_mforward(m, m->m_pkthdr.rcvif) != 0) { |
if (ip_mforward(m, m->m_pkthdr.rcvif) != 0) { |
| ipstat.ips_cantforward++; |
IP_STATINC(IP_STAT_CANTFORWARD); |
| m_freem(m); |
m_freem(m); |
| return; |
return; |
| } |
} |
| Line 792 ip_input(struct mbuf *m) |
|
| Line 794 ip_input(struct mbuf *m) |
|
| */ |
*/ |
| if (ip->ip_p == IPPROTO_IGMP) |
if (ip->ip_p == IPPROTO_IGMP) |
| goto ours; |
goto ours; |
| ipstat.ips_forward++; |
IP_STATINC(IP_STAT_CANTFORWARD); |
| } |
} |
| #endif |
#endif |
| /* |
/* |
| Line 801 ip_input(struct mbuf *m) |
|
| Line 803 ip_input(struct mbuf *m) |
|
| */ |
*/ |
| IN_LOOKUP_MULTI(ip->ip_dst, m->m_pkthdr.rcvif, inm); |
IN_LOOKUP_MULTI(ip->ip_dst, m->m_pkthdr.rcvif, inm); |
| if (inm == NULL) { |
if (inm == NULL) { |
| ipstat.ips_cantforward++; |
IP_STATINC(IP_STAT_CANTFORWARD); |
| m_freem(m); |
m_freem(m); |
| return; |
return; |
| } |
} |
| Line 815 ip_input(struct mbuf *m) |
|
| Line 817 ip_input(struct mbuf *m) |
|
| * Not for us; forward if possible and desirable. |
* Not for us; forward if possible and desirable. |
| */ |
*/ |
| if (ipforwarding == 0) { |
if (ipforwarding == 0) { |
| ipstat.ips_cantforward++; |
IP_STATINC(IP_STAT_CANTFORWARD); |
| m_freem(m); |
m_freem(m); |
| } else { |
} else { |
| /* |
/* |
| Line 826 ip_input(struct mbuf *m) |
|
| Line 828 ip_input(struct mbuf *m) |
|
| */ |
*/ |
| if (downmatch) { |
if (downmatch) { |
| icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_HOST, 0, 0); |
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_HOST, 0, 0); |
| ipstat.ips_cantforward++; |
IP_STATINC(IP_STAT_CANTFORWARD); |
| return; |
return; |
| } |
} |
| #ifdef IPSEC |
#ifdef IPSEC |
| if (ipsec4_in_reject(m, NULL)) { |
if (ipsec4_in_reject(m, NULL)) { |
| ipsecstat.in_polvio++; |
IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); |
| goto bad; |
goto bad; |
| } |
} |
| #endif |
#endif |
| Line 859 ip_input(struct mbuf *m) |
|
| Line 861 ip_input(struct mbuf *m) |
|
| KEY_FREESP(&sp); |
KEY_FREESP(&sp); |
| splx(s); |
splx(s); |
| if (error) { |
if (error) { |
| ipstat.ips_cantforward++; |
IP_STATINC(IP_STAT_CANTFORWARD); |
| goto bad; |
goto bad; |
| } |
} |
| |
|
|
|
| */ |
*/ |
| off = (ntohs(ip->ip_off) & IP_OFFMASK) << 3; |
off = (ntohs(ip->ip_off) & IP_OFFMASK) << 3; |
| if ((off > 0 ? off + hlen : len) < IP_MINFRAGSIZE - 1) { |
if ((off > 0 ? off + hlen : len) < IP_MINFRAGSIZE - 1) { |
| ipstat.ips_badfrags++; |
IP_STATINC(IP_STAT_BADFRAGS); |
| goto bad; |
goto bad; |
| } |
} |
| /* |
/* |
|
|
| * fragments. |
* fragments. |
| */ |
*/ |
| if (ip->ip_tos != fp->ipq_tos) { |
if (ip->ip_tos != fp->ipq_tos) { |
| ipstat.ips_badfrags++; |
IP_STATINC(IP_STAT_BADFRAGS); |
| goto bad; |
goto bad; |
| } |
} |
| goto found; |
goto found; |
|
|
| */ |
*/ |
| if (ntohs(ip->ip_len) == 0 || |
if (ntohs(ip->ip_len) == 0 || |
| (ntohs(ip->ip_len) & 0x7) != 0) { |
(ntohs(ip->ip_len) & 0x7) != 0) { |
| ipstat.ips_badfrags++; |
IP_STATINC(IP_STAT_BADFRAGS); |
| IPQ_UNLOCK(); |
IPQ_UNLOCK(); |
| goto bad; |
goto bad; |
| } |
} |
|
|
| * attempt reassembly; if it succeeds, proceed. |
* attempt reassembly; if it succeeds, proceed. |
| */ |
*/ |
| if (mff || ip->ip_off != htons(0)) { |
if (mff || ip->ip_off != htons(0)) { |
| ipstat.ips_fragments++; |
IP_STATINC(IP_STAT_FRAGMENTS); |
| s = splvm(); |
s = splvm(); |
| ipqe = pool_get(&ipqent_pool, PR_NOWAIT); |
ipqe = pool_get(&ipqent_pool, PR_NOWAIT); |
| splx(s); |
splx(s); |
| if (ipqe == NULL) { |
if (ipqe == NULL) { |
| ipstat.ips_rcvmemdrop++; |
IP_STATINC(IP_STAT_RCVMEMDROP); |
| IPQ_UNLOCK(); |
IPQ_UNLOCK(); |
| goto bad; |
goto bad; |
| } |
} |
|
|
| IPQ_UNLOCK(); |
IPQ_UNLOCK(); |
| return; |
return; |
| } |
} |
| ipstat.ips_reassembled++; |
IP_STATINC(IP_STAT_REASSEMBLED); |
| ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
| hlen = ip->ip_hl << 2; |
hlen = ip->ip_hl << 2; |
| ip->ip_len = htons(ntohs(ip->ip_len) + hlen); |
ip->ip_len = htons(ntohs(ip->ip_len) + hlen); |
|
|
| */ |
*/ |
| if ((inetsw[ip_protox[ip->ip_p]].pr_flags & PR_LASTHDR) != 0 && |
if ((inetsw[ip_protox[ip->ip_p]].pr_flags & PR_LASTHDR) != 0 && |
| ipsec4_in_reject(m, NULL)) { |
ipsec4_in_reject(m, NULL)) { |
| ipsecstat.in_polvio++; |
IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); |
| goto bad; |
goto bad; |
| } |
} |
| #endif |
#endif |
| Line 1046 DPRINTF(("ip_input: no SP, packet discar |
|
| Line 1048 DPRINTF(("ip_input: no SP, packet discar |
|
| if (ia && ip) |
if (ia && ip) |
| ia->ia_ifa.ifa_data.ifad_inbytes += ntohs(ip->ip_len); |
ia->ia_ifa.ifa_data.ifad_inbytes += ntohs(ip->ip_len); |
| #endif |
#endif |
| ipstat.ips_delivered++; |
IP_STATINC(IP_STAT_DELIVERED); |
| { |
{ |
| int off = hlen, nh = ip->ip_p; |
int off = hlen, nh = ip->ip_p; |
| |
|
|
|
| return; |
return; |
| |
|
| badcsum: |
badcsum: |
| ipstat.ips_badsum++; |
IP_STATINC(IP_STAT_BADSUM); |
| m_freem(m); |
m_freem(m); |
| } |
} |
| |
|
|
|
| q = TAILQ_FIRST(&fp->ipq_fragq); |
q = TAILQ_FIRST(&fp->ipq_fragq); |
| ip = q->ipqe_ip; |
ip = q->ipqe_ip; |
| if ((next + (ip->ip_hl << 2)) > IP_MAXPACKET) { |
if ((next + (ip->ip_hl << 2)) > IP_MAXPACKET) { |
| ipstat.ips_toolong++; |
IP_STATINC(IP_STAT_TOOLONG); |
| ip_freef(fp); |
ip_freef(fp); |
| return (0); |
return (0); |
| } |
} |
|
|
| if (fp != 0) |
if (fp != 0) |
| fp->ipq_nfrags--; |
fp->ipq_nfrags--; |
| ip_nfrags--; |
ip_nfrags--; |
| ipstat.ips_fragdropped++; |
IP_STATINC(IP_STAT_FRAGDROPPED); |
| m_freem(m); |
m_freem(m); |
| s = splvm(); |
s = splvm(); |
| pool_put(&ipqent_pool, ipqe); |
pool_put(&ipqent_pool, ipqe); |
| Line 1333 ip_reass_ttl_decr(u_int ticks) |
|
| Line 1335 ip_reass_ttl_decr(u_int ticks) |
|
| 0 : fp->ipq_ttl - ticks); |
0 : fp->ipq_ttl - ticks); |
| nfp = LIST_NEXT(fp, ipq_q); |
nfp = LIST_NEXT(fp, ipq_q); |
| if (fp->ipq_ttl == 0) { |
if (fp->ipq_ttl == 0) { |
| ipstat.ips_fragtimeout++; |
IP_STATINC(IP_STAT_FRAGTIMEOUT); |
| ip_freef(fp); |
ip_freef(fp); |
| } else { |
} else { |
| nfrags += fp->ipq_nfrags; |
nfrags += fp->ipq_nfrags; |
| Line 1384 ip_slowtimo(void) |
|
| Line 1386 ip_slowtimo(void) |
|
| static u_int dropscanidx = 0; |
static u_int dropscanidx = 0; |
| u_int i; |
u_int i; |
| u_int median_ttl; |
u_int median_ttl; |
| int s = splsoftnet(); |
|
| |
mutex_enter(softnet_lock); |
| |
KERNEL_LOCK(1, NULL); |
| |
|
| IPQ_LOCK(); |
IPQ_LOCK(); |
| |
|
| Line 1426 ip_slowtimo(void) |
|
| Line 1430 ip_slowtimo(void) |
|
| dropscanidx = i; |
dropscanidx = i; |
| } |
} |
| IPQ_UNLOCK(); |
IPQ_UNLOCK(); |
| splx(s); |
|
| |
KERNEL_UNLOCK_ONE(NULL); |
| |
mutex_exit(softnet_lock); |
| } |
} |
| |
|
| /* |
/* |
| * Drain off all datagram fragments. |
* Drain off all datagram fragments. Don't acquire softnet_lock as |
| |
* can be called from hardware interrupt context. |
| */ |
*/ |
| void |
void |
| ip_drain(void) |
ip_drain(void) |
| { |
{ |
| |
|
| |
KERNEL_LOCK(1, NULL); |
| |
|
| /* |
/* |
| * We may be called from a device's interrupt context. If |
* We may be called from a device's interrupt context. If |
| * the ipq is already busy, just bail out now. |
* the ipq is already busy, just bail out now. |
| */ |
*/ |
| if (ipq_lock_try() == 0) |
if (ipq_lock_try() != 0) { |
| return; |
/* |
| |
* Drop half the total fragments now. If more mbufs are |
| /* |
* needed, we will be called again soon. |
| * Drop half the total fragments now. If more mbufs are needed, |
*/ |
| * we will be called again soon. |
ip_reass_drophalf(); |
| */ |
IPQ_UNLOCK(); |
| ip_reass_drophalf(); |
} |
| |
|
| IPQ_UNLOCK(); |
KERNEL_UNLOCK_ONE(NULL); |
| } |
} |
| |
|
| /* |
/* |
| Line 1680 ip_dooptions(struct mbuf *m) |
|
| Line 1689 ip_dooptions(struct mbuf *m) |
|
| return (0); |
return (0); |
| bad: |
bad: |
| icmp_error(m, type, code, 0, 0); |
icmp_error(m, type, code, 0, 0); |
| ipstat.ips_badoptions++; |
IP_STATINC(IP_STAT_BADOPTIONS); |
| return (1); |
return (1); |
| } |
} |
| |
|
| Line 1853 ip_forward(struct mbuf *m, int srcrt) |
|
| Line 1862 ip_forward(struct mbuf *m, int srcrt) |
|
| } |
} |
| #endif |
#endif |
| if (m->m_flags & (M_BCAST|M_MCAST) || in_canforward(ip->ip_dst) == 0) { |
if (m->m_flags & (M_BCAST|M_MCAST) || in_canforward(ip->ip_dst) == 0) { |
| ipstat.ips_cantforward++; |
IP_STATINC(IP_STAT_CANTFORWARD); |
| m_freem(m); |
m_freem(m); |
| return; |
return; |
| } |
} |
| Line 1917 ip_forward(struct mbuf *m, int srcrt) |
|
| Line 1926 ip_forward(struct mbuf *m, int srcrt) |
|
| (struct ip_moptions *)NULL, (struct socket *)NULL); |
(struct ip_moptions *)NULL, (struct socket *)NULL); |
| |
|
| if (error) |
if (error) |
| ipstat.ips_cantforward++; |
IP_STATINC(IP_STAT_CANTFORWARD); |
| else { |
else { |
| ipstat.ips_forward++; |
uint64_t *ips = IP_STAT_GETREF(); |
| if (type) |
ips[IP_STAT_FORWARD]++; |
| ipstat.ips_redirectsent++; |
if (type) { |
| else { |
ips[IP_STAT_REDIRECTSENT]++; |
| |
IP_STAT_PUTREF(); |
| |
} else { |
| |
IP_STAT_PUTREF(); |
| if (mcopy) { |
if (mcopy) { |
| #ifdef GATEWAY |
#ifdef GATEWAY |
| if (mcopy->m_flags & M_CANFASTFWD) |
if (mcopy->m_flags & M_CANFASTFWD) |
| Line 1954 ip_forward(struct mbuf *m, int srcrt) |
|
| Line 1966 ip_forward(struct mbuf *m, int srcrt) |
|
| case EMSGSIZE: |
case EMSGSIZE: |
| type = ICMP_UNREACH; |
type = ICMP_UNREACH; |
| code = ICMP_UNREACH_NEEDFRAG; |
code = ICMP_UNREACH_NEEDFRAG; |
| #if !defined(IPSEC) && !defined(FAST_IPSEC) |
|
| if ((rt = rtcache_validate(&ipforward_rt)) != NULL) |
|
| destmtu = rt->rt_ifp->if_mtu; |
|
| #else |
|
| /* |
|
| * If the packet is routed over IPsec tunnel, tell the |
|
| * originator the tunnel MTU. |
|
| * tunnel MTU = if MTU - sizeof(IP) - ESP/AH hdrsiz |
|
| * XXX quickhack!!! |
|
| */ |
|
| if ((rt = rtcache_validate(&ipforward_rt)) != NULL) { |
if ((rt = rtcache_validate(&ipforward_rt)) != NULL) { |
| |
|
| |
#if defined(IPSEC) || defined(FAST_IPSEC) |
| |
/* |
| |
* If the packet is routed over IPsec tunnel, tell the |
| |
* originator the tunnel MTU. |
| |
* tunnel MTU = if MTU - sizeof(IP) - ESP/AH hdrsiz |
| |
* XXX quickhack!!! |
| |
*/ |
| |
|
| struct secpolicy *sp; |
struct secpolicy *sp; |
| int ipsecerror; |
int ipsecerror; |
| size_t ipsechdr; |
size_t ipsechdr; |
| Line 1973 ip_forward(struct mbuf *m, int srcrt) |
|
| Line 1985 ip_forward(struct mbuf *m, int srcrt) |
|
| sp = ipsec4_getpolicybyaddr(mcopy, |
sp = ipsec4_getpolicybyaddr(mcopy, |
| IPSEC_DIR_OUTBOUND, IP_FORWARDING, |
IPSEC_DIR_OUTBOUND, IP_FORWARDING, |
| &ipsecerror); |
&ipsecerror); |
| |
#endif |
| |
|
| if (sp == NULL) |
destmtu = rt->rt_ifp->if_mtu; |
| destmtu = rt->rt_ifp->if_mtu; |
#if defined(IPSEC) || defined(FAST_IPSEC) |
| else { |
if (sp != NULL) { |
| /* count IPsec header size */ |
/* count IPsec header size */ |
| ipsechdr = ipsec4_hdrsiz(mcopy, |
ipsechdr = ipsec4_hdrsiz(mcopy, |
| IPSEC_DIR_OUTBOUND, NULL); |
IPSEC_DIR_OUTBOUND, NULL); |
| Line 2005 ip_forward(struct mbuf *m, int srcrt) |
|
| Line 2018 ip_forward(struct mbuf *m, int srcrt) |
|
| KEY_FREESP(&sp); |
KEY_FREESP(&sp); |
| #endif |
#endif |
| } |
} |
| |
#endif /*defined(IPSEC) || defined(FAST_IPSEC)*/ |
| } |
} |
| #endif /*IPSEC*/ |
IP_STATINC(IP_STAT_CANTFRAG); |
| ipstat.ips_cantfrag++; |
|
| break; |
break; |
| |
|
| case ENOBUFS: |
case ENOBUFS: |
| Line 2150 sysctl_net_inet_ip_maxflows(SYSCTLFN_ARG |
|
| Line 2163 sysctl_net_inet_ip_maxflows(SYSCTLFN_ARG |
|
| return (s); |
return (s); |
| |
|
| s = splsoftnet(); |
s = splsoftnet(); |
| ipflow_reap(0); |
ipflow_prune(); |
| splx(s); |
splx(s); |
| |
|
| return (0); |
return (0); |
| Line 2186 sysctl_net_inet_ip_hashsize(SYSCTLFN_ARG |
|
| Line 2199 sysctl_net_inet_ip_hashsize(SYSCTLFN_ARG |
|
| } |
} |
| #endif /* GATEWAY */ |
#endif /* GATEWAY */ |
| |
|
| |
static int |
| |
sysctl_net_inet_ip_stats(SYSCTLFN_ARGS) |
| |
{ |
| |
|
| |
return (NETSTAT_SYSCTL(ipstat_percpu, IP_NSTATS)); |
| |
} |
| |
|
| SYSCTL_SETUP(sysctl_net_inet_ip_setup, "sysctl net.inet.ip subtree setup") |
SYSCTL_SETUP(sysctl_net_inet_ip_setup, "sysctl net.inet.ip subtree setup") |
| { |
{ |
| Line 2390 SYSCTL_SETUP(sysctl_net_inet_ip_setup, " |
|
| Line 2409 SYSCTL_SETUP(sysctl_net_inet_ip_setup, " |
|
| CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
| CTLTYPE_STRUCT, "stats", |
CTLTYPE_STRUCT, "stats", |
| SYSCTL_DESCR("IP statistics"), |
SYSCTL_DESCR("IP statistics"), |
| NULL, 0, &ipstat, sizeof(ipstat), |
sysctl_net_inet_ip_stats, 0, NULL, 0, |
| CTL_NET, PF_INET, IPPROTO_IP, IPCTL_STATS, |
CTL_NET, PF_INET, IPPROTO_IP, IPCTL_STATS, |
| CTL_EOL); |
CTL_EOL); |
| } |
} |
| |
|
| |
void |
| |
ip_statinc(u_int stat) |
| |
{ |
| |
|
| |
KASSERT(stat < IP_NSTATS); |
| |
IP_STATINC(stat); |
| |
} |