version 1.162, 2002/11/12 01:57:07 |
version 1.167, 2003/06/23 11:02:14 |
Line 108 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 108 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_pfil_hooks.h" |
#include "opt_pfil_hooks.h" |
#include "opt_ipsec.h" |
#include "opt_ipsec.h" |
#include "opt_mrouting.h" |
#include "opt_mrouting.h" |
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#include "opt_mbuftrace.h" |
#include "opt_inet_csum.h" |
#include "opt_inet_csum.h" |
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#include <sys/param.h> |
#include <sys/param.h> |
Line 196 int ip_mtudisc_timeout = IPMTUDISCTIMEOU |
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Line 197 int ip_mtudisc_timeout = IPMTUDISCTIMEOU |
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#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
int ipprintfs = 0; |
int ipprintfs = 0; |
#endif |
#endif |
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/* |
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* XXX - Setting ip_checkinterface mostly implements the receive side of |
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* the Strong ES model described in RFC 1122, but since the routing table |
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* and transmit implementation do not implement the Strong ES model, |
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* setting this to 1 results in an odd hybrid. |
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* |
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* XXX - ip_checkinterface currently must be disabled if you use ipnat |
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* to translate the destination address to another local interface. |
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* |
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* XXX - ip_checkinterface must be disabled if you add IP aliases |
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* to the loopback interface instead of the interface where the |
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* packets for those addresses are received. |
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*/ |
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int ip_checkinterface = 0; |
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struct rttimer_queue *ip_mtudisc_timeout_q = NULL; |
struct rttimer_queue *ip_mtudisc_timeout_q = NULL; |
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Line 205 u_long in_ifaddrhash; /* size of hash |
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Line 221 u_long in_ifaddrhash; /* size of hash |
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int in_ifaddrentries; /* total number of addrs */ |
int in_ifaddrentries; /* total number of addrs */ |
struct in_ifaddrhead in_ifaddr; |
struct in_ifaddrhead in_ifaddr; |
struct in_ifaddrhashhead *in_ifaddrhashtbl; |
struct in_ifaddrhashhead *in_ifaddrhashtbl; |
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u_long in_multihash; /* size of hash table - 1 */ |
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int in_multientries; /* total number of addrs */ |
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struct in_multihead in_multi; |
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struct in_multihashhead *in_multihashtbl; |
struct ifqueue ipintrq; |
struct ifqueue ipintrq; |
struct ipstat ipstat; |
struct ipstat ipstat; |
u_int16_t ip_id; |
u_int16_t ip_id; |
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#define IPQ_UNLOCK() ipq_unlock() |
#define IPQ_UNLOCK() ipq_unlock() |
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struct pool inmulti_pool; |
struct pool ipqent_pool; |
struct pool ipqent_pool; |
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#ifdef INET_CSUM_COUNTERS |
#ifdef INET_CSUM_COUNTERS |
Line 309 static struct ip_srcrt { |
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Line 330 static struct ip_srcrt { |
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static void save_rte __P((u_char *, struct in_addr)); |
static void save_rte __P((u_char *, struct in_addr)); |
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#ifdef MBUFTRACE |
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struct mowner ip_rx_mowner = { "internet", "rx" }; |
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struct mowner ip_tx_mowner = { "internet", "tx" }; |
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#endif |
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/* |
/* |
* IP initialization: fill in IP protocol switch table. |
* IP initialization: fill in IP protocol switch table. |
* All protocols not implemented in kernel go to raw IP protocol handler. |
* All protocols not implemented in kernel go to raw IP protocol handler. |
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struct protosw *pr; |
struct protosw *pr; |
int i; |
int i; |
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pool_init(&inmulti_pool, sizeof(struct in_multi), 0, 0, 0, "inmltpl", |
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NULL); |
pool_init(&ipqent_pool, sizeof(struct ipqent), 0, 0, 0, "ipqepl", |
pool_init(&ipqent_pool, sizeof(struct ipqent), 0, 0, 0, "ipqepl", |
NULL); |
NULL); |
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TAILQ_INIT(&in_ifaddr); |
TAILQ_INIT(&in_ifaddr); |
in_ifaddrhashtbl = hashinit(IN_IFADDR_HASH_SIZE, HASH_LIST, M_IFADDR, |
in_ifaddrhashtbl = hashinit(IN_IFADDR_HASH_SIZE, HASH_LIST, M_IFADDR, |
M_WAITOK, &in_ifaddrhash); |
M_WAITOK, &in_ifaddrhash); |
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in_multihashtbl = hashinit(IN_IFADDR_HASH_SIZE, HASH_LIST, M_IPMADDR, |
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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(); |
ipflow_init(); |
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evcnt_attach_static(&ip_hwcsum_ok); |
evcnt_attach_static(&ip_hwcsum_ok); |
evcnt_attach_static(&ip_swcsum); |
evcnt_attach_static(&ip_swcsum); |
#endif /* INET_CSUM_COUNTERS */ |
#endif /* INET_CSUM_COUNTERS */ |
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#ifdef MBUFTRACE |
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MOWNER_ATTACH(&ip_tx_mowner); |
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MOWNER_ATTACH(&ip_rx_mowner); |
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#endif /* MBUFTRACE */ |
} |
} |
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struct sockaddr_in ipaddr = { sizeof(ipaddr), AF_INET }; |
struct sockaddr_in ipaddr = { sizeof(ipaddr), AF_INET }; |
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splx(s); |
splx(s); |
if (m == 0) |
if (m == 0) |
return; |
return; |
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MCLAIM(m, &ip_rx_mowner); |
ip_input(m); |
ip_input(m); |
} |
} |
} |
} |
Line 396 ip_input(struct mbuf *m) |
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Line 432 ip_input(struct mbuf *m) |
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struct ipqent *ipqe; |
struct ipqent *ipqe; |
int hlen = 0, mff, len; |
int hlen = 0, mff, len; |
int downmatch; |
int downmatch; |
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int checkif; |
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MCLAIM(m, &ip_rx_mowner); |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if ((m->m_flags & M_PKTHDR) == 0) |
if ((m->m_flags & M_PKTHDR) == 0) |
panic("ipintr no HDR"); |
panic("ipintr no HDR"); |
Line 411 ip_input(struct mbuf *m) |
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Line 449 ip_input(struct mbuf *m) |
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m->m_flags &= ~M_AUTHIPDGM; |
m->m_flags &= ~M_AUTHIPDGM; |
} |
} |
#endif |
#endif |
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/* |
/* |
* If no IP addresses have been set yet but the interfaces |
* If no IP addresses have been set yet but the interfaces |
* are receiving, can't do anything with incoming packets yet. |
* are receiving, can't do anything with incoming packets yet. |
Line 580 ip_input(struct mbuf *m) |
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Line 619 ip_input(struct mbuf *m) |
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return; |
return; |
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/* |
/* |
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* Enable a consistency check between the destination address |
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* and the arrival interface for a unicast packet (the RFC 1122 |
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* strong ES model) if IP forwarding is disabled and the packet |
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* is not locally generated. |
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* |
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* XXX - Checking also should be disabled if the destination |
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* address is ipnat'ed to a different interface. |
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* |
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* XXX - Checking is incompatible with IP aliases added |
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* to the loopback interface instead of the interface where |
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* the packets are received. |
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* |
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* XXX - We need to add a per ifaddr flag for this so that |
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* we get finer grain control. |
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*/ |
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checkif = ip_checkinterface && (ipforwarding == 0) && |
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(m->m_pkthdr.rcvif != NULL) && |
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((m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) == 0); |
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/* |
* Check our list of addresses, to see if the packet is for us. |
* Check our list of addresses, to see if the packet is for us. |
* |
* |
* Traditional 4.4BSD did not consult IFF_UP at all. |
* Traditional 4.4BSD did not consult IFF_UP at all. |
Line 589 ip_input(struct mbuf *m) |
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Line 648 ip_input(struct mbuf *m) |
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downmatch = 0; |
downmatch = 0; |
LIST_FOREACH(ia, &IN_IFADDR_HASH(ip->ip_dst.s_addr), ia_hash) { |
LIST_FOREACH(ia, &IN_IFADDR_HASH(ip->ip_dst.s_addr), ia_hash) { |
if (in_hosteq(ia->ia_addr.sin_addr, ip->ip_dst)) { |
if (in_hosteq(ia->ia_addr.sin_addr, ip->ip_dst)) { |
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if (checkif && ia->ia_ifp != m->m_pkthdr.rcvif) |
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continue; |
if ((ia->ia_ifp->if_flags & IFF_UP) != 0) |
if ((ia->ia_ifp->if_flags & IFF_UP) != 0) |
break; |
break; |
else |
else |
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if (m == 0) |
if (m == 0) |
return ((struct mbuf *)0); |
return ((struct mbuf *)0); |
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MCLAIM(m, &inetdomain.dom_mowner); |
#define OPTSIZ (sizeof(ip_srcrt.nop) + sizeof(ip_srcrt.srcopt)) |
#define OPTSIZ (sizeof(ip_srcrt.nop) + sizeof(ip_srcrt.srcopt)) |
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/* length is (nhops+1)*sizeof(addr) + sizeof(nop + srcrt header) */ |
/* length is (nhops+1)*sizeof(addr) + sizeof(nop + srcrt header) */ |
Line 1509 ip_forward(m, srcrt) |
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Line 1571 ip_forward(m, srcrt) |
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#endif |
#endif |
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/* |
/* |
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* We are now in the output path. |
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*/ |
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MCLAIM(m, &ip_tx_mowner); |
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/* |
* Clear any in-bound checksum flags for this packet. |
* Clear any in-bound checksum flags for this packet. |
*/ |
*/ |
m->m_pkthdr.csum_flags = 0; |
m->m_pkthdr.csum_flags = 0; |
Line 1826 ip_sysctl(name, namelen, oldp, oldlenp, |
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Line 1893 ip_sysctl(name, namelen, oldp, oldlenp, |
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case IPCTL_MTUDISC: |
case IPCTL_MTUDISC: |
error = sysctl_int(oldp, oldlenp, newp, newlen, |
error = sysctl_int(oldp, oldlenp, newp, newlen, |
&ip_mtudisc); |
&ip_mtudisc); |
if (ip_mtudisc != 0 && ip_mtudisc_timeout_q == NULL) { |
if (error == 0 && ip_mtudisc == 0) |
ip_mtudisc_timeout_q = |
rt_timer_queue_remove_all(ip_mtudisc_timeout_q, TRUE); |
rt_timer_queue_create(ip_mtudisc_timeout); |
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} else if (ip_mtudisc == 0 && ip_mtudisc_timeout_q != NULL) { |
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rt_timer_queue_destroy(ip_mtudisc_timeout_q, TRUE); |
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ip_mtudisc_timeout_q = NULL; |
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} |
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return error; |
return error; |
case IPCTL_ANONPORTMIN: |
case IPCTL_ANONPORTMIN: |
old = anonportmin; |
old = anonportmin; |
Line 1868 ip_sysctl(name, namelen, oldp, oldlenp, |
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Line 1930 ip_sysctl(name, namelen, oldp, oldlenp, |
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ip_mtudisc_timeout = old; |
ip_mtudisc_timeout = old; |
return (EINVAL); |
return (EINVAL); |
} |
} |
if (ip_mtudisc_timeout_q != NULL) |
if (error == 0) |
rt_timer_queue_change(ip_mtudisc_timeout_q, |
rt_timer_queue_change(ip_mtudisc_timeout_q, |
ip_mtudisc_timeout); |
ip_mtudisc_timeout); |
return (error); |
return (error); |
Line 1929 ip_sysctl(name, namelen, oldp, oldlenp, |
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Line 1991 ip_sysctl(name, namelen, oldp, oldlenp, |
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return (sysctl_int(oldp, oldlenp, newp, newlen, |
return (sysctl_int(oldp, oldlenp, newp, newlen, |
&ip_maxfragpackets)); |
&ip_maxfragpackets)); |
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case IPCTL_CHECKINTERFACE: |
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return (sysctl_int(oldp, oldlenp, newp, newlen, |
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&ip_checkinterface)); |
default: |
default: |
return (EOPNOTSUPP); |
return (EOPNOTSUPP); |
} |
} |