version 1.314, 2014/05/23 23:38:48 |
version 1.324, 2015/08/24 22:21:26 |
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#include <sys/cdefs.h> |
#include <sys/cdefs.h> |
__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
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#ifdef _KERNEL_OPT |
#include "opt_inet.h" |
#include "opt_inet.h" |
#include "opt_compat_netbsd.h" |
#include "opt_compat_netbsd.h" |
#include "opt_gateway.h" |
#include "opt_gateway.h" |
Line 100 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 101 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_mrouting.h" |
#include "opt_mrouting.h" |
#include "opt_mbuftrace.h" |
#include "opt_mbuftrace.h" |
#include "opt_inet_csum.h" |
#include "opt_inet_csum.h" |
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#endif |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
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#include <sys/cpu.h> |
#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
#include <sys/domain.h> |
#include <sys/domain.h> |
#include <sys/protosw.h> |
#include <sys/protosw.h> |
Line 118 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 121 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <net/if.h> |
#include <net/if.h> |
#include <net/if_dl.h> |
#include <net/if_dl.h> |
#include <net/route.h> |
#include <net/route.h> |
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#include <net/pktqueue.h> |
#include <net/pfil.h> |
#include <net/pfil.h> |
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#include <netinet/in.h> |
#include <netinet/in.h> |
Line 210 int ip_do_randomid = 0; |
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Line 214 int ip_do_randomid = 0; |
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* to the loopback interface instead of the interface where the |
* to the loopback interface instead of the interface where the |
* packets for those addresses are received. |
* packets for those addresses are received. |
*/ |
*/ |
int ip_checkinterface = 0; |
static int ip_checkinterface __read_mostly = 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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struct ifqueue ipintrq; |
pktqueue_t * ip_pktq __read_mostly; |
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pfil_head_t * inet_pfil_hook __read_mostly; |
ipid_state_t * ip_ids; |
ipid_state_t * ip_ids __read_mostly; |
uint16_t ip_id; |
percpu_t * ipstat_percpu __read_mostly; |
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percpu_t *ipstat_percpu; |
static struct route ipforward_rt __cacheline_aligned; |
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pfil_head_t *inet_pfil_hook; |
uint16_t ip_id; |
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#ifdef INET_CSUM_COUNTERS |
#ifdef INET_CSUM_COUNTERS |
#include <sys/device.h> |
#include <sys/device.h> |
Line 264 static struct ip_srcrt { |
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Line 268 static struct ip_srcrt { |
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static int ip_drainwanted; |
static int ip_drainwanted; |
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struct sockaddr_in ipaddr = { |
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.sin_len = sizeof(ipaddr), |
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.sin_family = AF_INET, |
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}; |
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static void save_rte(u_char *, struct in_addr); |
static void save_rte(u_char *, struct in_addr); |
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#ifdef MBUFTRACE |
#ifdef MBUFTRACE |
Line 271 struct mowner ip_rx_mowner = MOWNER_INIT |
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Line 280 struct mowner ip_rx_mowner = MOWNER_INIT |
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struct mowner ip_tx_mowner = MOWNER_INIT("internet", "tx"); |
struct mowner ip_tx_mowner = MOWNER_INIT("internet", "tx"); |
#endif |
#endif |
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static void ipintr(void *); |
static void ip_input(struct mbuf *); |
static void ip_input(struct mbuf *); |
static void ip_forward(struct mbuf *, int); |
static void ip_forward(struct mbuf *, int); |
static bool ip_dooptions(struct mbuf *); |
static bool ip_dooptions(struct mbuf *); |
static struct in_ifaddr *ip_rtaddr(struct in_addr); |
static struct in_ifaddr *ip_rtaddr(struct in_addr); |
static void sysctl_net_inet_ip_setup(struct sysctllog **); |
static void sysctl_net_inet_ip_setup(struct sysctllog **); |
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/* XXX: Not yet enabled. */ |
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#define SOFTNET_LOCK() KASSERT(mutex_owned(softnet_lock)) |
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#define SOFTNET_UNLOCK() KASSERT(mutex_owned(softnet_lock)) |
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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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pr = pffindproto(PF_INET, IPPROTO_RAW, SOCK_RAW); |
pr = pffindproto(PF_INET, IPPROTO_RAW, SOCK_RAW); |
KASSERT(pr != NULL); |
KASSERT(pr != NULL); |
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ip_pktq = pktq_create(IFQ_MAXLEN, ipintr, NULL); |
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KASSERT(ip_pktq != NULL); |
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for (u_int i = 0; i < IPPROTO_MAX; i++) { |
for (u_int i = 0; i < IPPROTO_MAX; i++) { |
ip_protox[i] = pr - inetsw; |
ip_protox[i] = pr - inetsw; |
} |
} |
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ip_reass_init(); |
ip_reass_init(); |
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ip_ids = ip_id_init(); |
ip_ids = ip_id_init(); |
ip_id = time_second & 0xfffff; |
ip_id = time_uptime & 0xfffff; |
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ipintrq.ifq_maxlen = IFQ_MAXLEN; |
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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 |
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ipstat_percpu = percpu_alloc(sizeof(uint64_t) * IP_NSTATS); |
ipstat_percpu = percpu_alloc(sizeof(uint64_t) * IP_NSTATS); |
} |
} |
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struct sockaddr_in ipaddr = { |
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.sin_len = sizeof(ipaddr), |
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.sin_family = AF_INET, |
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}; |
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static struct route ipforward_rt; |
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/* |
/* |
* IP software interrupt routine |
* IP software interrupt routine. |
*/ |
*/ |
void |
static void |
ipintr(void) |
ipintr(void *arg __unused) |
{ |
{ |
int s; |
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struct mbuf *m; |
struct mbuf *m; |
struct ifqueue lcl_intrq; |
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memset(&lcl_intrq, 0, sizeof(lcl_intrq)); |
KASSERT(cpu_softintr_p()); |
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mutex_enter(softnet_lock); |
mutex_enter(softnet_lock); |
KERNEL_LOCK(1, NULL); |
while ((m = pktq_dequeue(ip_pktq)) != NULL) { |
if (!IF_IS_EMPTY(&ipintrq)) { |
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s = splnet(); |
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/* Take existing queue onto stack */ |
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lcl_intrq = ipintrq; |
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/* Zero out global queue, preserving maxlen and drops */ |
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ipintrq.ifq_head = NULL; |
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ipintrq.ifq_tail = NULL; |
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ipintrq.ifq_len = 0; |
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ipintrq.ifq_maxlen = lcl_intrq.ifq_maxlen; |
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ipintrq.ifq_drops = lcl_intrq.ifq_drops; |
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splx(s); |
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} |
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KERNEL_UNLOCK_ONE(NULL); |
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while (!IF_IS_EMPTY(&lcl_intrq)) { |
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IF_DEQUEUE(&lcl_intrq, m); |
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if (m == NULL) |
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break; |
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ip_input(m); |
ip_input(m); |
} |
} |
mutex_exit(softnet_lock); |
mutex_exit(softnet_lock); |
} |
} |
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/* |
/* |
* Ip input routine. Checksum and byte swap header. If fragmented |
* IP input routine. Checksum and byte swap header. If fragmented |
* try to reassemble. Process options. Pass to next level. |
* try to reassemble. Process options. Pass to next level. |
*/ |
*/ |
static void |
static void |
Line 387 ip_input(struct mbuf *m) |
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Line 373 ip_input(struct mbuf *m) |
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int srcrt = 0; |
int srcrt = 0; |
ifnet_t *ifp; |
ifnet_t *ifp; |
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KASSERTMSG(cpu_softintr_p(), "ip_input: not in the software " |
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"interrupt handler; synchronization assumptions violated"); |
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MCLAIM(m, &ip_rx_mowner); |
MCLAIM(m, &ip_rx_mowner); |
KASSERT((m->m_flags & M_PKTHDR) != 0); |
KASSERT((m->m_flags & M_PKTHDR) != 0); |
ifp = m->m_pkthdr.rcvif; |
ifp = m->m_pkthdr.rcvif; |
Line 394 ip_input(struct mbuf *m) |
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Line 383 ip_input(struct mbuf *m) |
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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. |
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* Note: we pre-check without locks held. |
*/ |
*/ |
if (TAILQ_FIRST(&in_ifaddrhead) == 0) |
if (!TAILQ_FIRST(&in_ifaddrhead)) { |
goto bad; |
goto bad; |
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} |
IP_STATINC(IP_STAT_TOTAL); |
IP_STATINC(IP_STAT_TOTAL); |
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/* |
/* |
* 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) |
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Line 514 ip_input(struct mbuf *m) |
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* in the list may have previously cleared it. |
* in the list may have previously cleared it. |
*/ |
*/ |
#if defined(IPSEC) |
#if defined(IPSEC) |
if (!ipsec_indone(m)) |
if (!ipsec_used || !ipsec_indone(m)) |
#else |
#else |
if (1) |
if (1) |
#endif |
#endif |
{ |
{ |
struct in_addr odst = ip->ip_dst; |
struct in_addr odst = ip->ip_dst; |
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bool freed; |
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if (pfil_run_hooks(inet_pfil_hook, &m, ifp, PFIL_IN) != 0) |
SOFTNET_LOCK(); |
return; |
freed = pfil_run_hooks(inet_pfil_hook, &m, ifp, PFIL_IN) != 0; |
if (m == NULL) |
SOFTNET_UNLOCK(); |
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if (freed || m == NULL) { |
return; |
return; |
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} |
ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
hlen = ip->ip_hl << 2; |
hlen = ip->ip_hl << 2; |
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/* |
/* |
* XXX The setting of "srcrt" here is to prevent ip_forward() |
* XXX The setting of "srcrt" here is to prevent ip_forward() |
* from generating ICMP redirects for packets that have |
* from generating ICMP redirects for packets that have |
Line 554 ip_input(struct mbuf *m) |
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Line 550 ip_input(struct mbuf *m) |
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#ifdef ALTQ |
#ifdef ALTQ |
/* XXX Temporary until ALTQ is changed to use a pfil hook */ |
/* XXX Temporary until ALTQ is changed to use a pfil hook */ |
if (altq_input != NULL && (*altq_input)(m, AF_INET) == 0) { |
if (altq_input) { |
/* packet dropped by traffic conditioner */ |
SOFTNET_LOCK(); |
return; |
if ((*altq_input)(m, AF_INET) == 0) { |
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/* Packet dropped by traffic conditioner. */ |
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SOFTNET_UNLOCK(); |
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return; |
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} |
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SOFTNET_UNLOCK(); |
} |
} |
#endif |
#endif |
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Line 587 ip_input(struct mbuf *m) |
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Line 588 ip_input(struct mbuf *m) |
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* we get finer grain control. |
* we get finer grain control. |
*/ |
*/ |
checkif = ip_checkinterface && (ipforwarding == 0) && |
checkif = ip_checkinterface && (ipforwarding == 0) && |
ifp && (ifp->if_flags & IFF_LOOPBACK) == 0; |
(ifp->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. |
* The behavior here is to treat addresses on !IFF_UP interface |
* The behavior here is to treat addresses on !IFF_UP interface |
* as not mine. |
* or IN_IFF_NOTREADY addresses as not mine. |
*/ |
*/ |
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 (ia->ia4_flags & IN_IFF_NOTREADY) |
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continue; |
if (checkif && ia->ia_ifp != ifp) |
if (checkif && ia->ia_ifp != ifp) |
continue; |
continue; |
if ((ia->ia_ifp->if_flags & IFF_UP) != 0) |
if ((ia->ia_ifp->if_flags & IFF_UP) != 0) |
Line 609 ip_input(struct mbuf *m) |
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Line 612 ip_input(struct mbuf *m) |
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} |
} |
if (ia != NULL) |
if (ia != NULL) |
goto ours; |
goto ours; |
if (ifp && ifp->if_flags & IFF_BROADCAST) { |
if (ifp->if_flags & IFF_BROADCAST) { |
IFADDR_FOREACH(ifa, ifp) { |
IFADDR_FOREACH(ifa, ifp) { |
if (ifa->ifa_addr->sa_family != AF_INET) |
if (ifa->ifa_addr->sa_family != AF_INET) |
continue; |
continue; |
ia = ifatoia(ifa); |
ia = ifatoia(ifa); |
|
if (ia->ia4_flags & IN_IFF_NOTREADY) |
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continue; |
if (in_hosteq(ip->ip_dst, ia->ia_broadaddr.sin_addr) || |
if (in_hosteq(ip->ip_dst, ia->ia_broadaddr.sin_addr) || |
in_hosteq(ip->ip_dst, ia->ia_netbroadcast) || |
in_hosteq(ip->ip_dst, ia->ia_netbroadcast) || |
/* |
/* |
Line 632 ip_input(struct mbuf *m) |
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Line 637 ip_input(struct mbuf *m) |
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} |
} |
} |
} |
if (IN_MULTICAST(ip->ip_dst.s_addr)) { |
if (IN_MULTICAST(ip->ip_dst.s_addr)) { |
struct in_multi *inm; |
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#ifdef MROUTING |
#ifdef MROUTING |
extern struct socket *ip_mrouter; |
extern struct socket *ip_mrouter; |
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Line 649 ip_input(struct mbuf *m) |
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Line 653 ip_input(struct mbuf *m) |
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* as expected when ip_mforward() is called from |
* as expected when ip_mforward() is called from |
* ip_output().) |
* ip_output().) |
*/ |
*/ |
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SOFTNET_LOCK(); |
if (ip_mforward(m, ifp) != 0) { |
if (ip_mforward(m, ifp) != 0) { |
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SOFTNET_UNLOCK(); |
IP_STATINC(IP_STAT_CANTFORWARD); |
IP_STATINC(IP_STAT_CANTFORWARD); |
m_freem(m); |
m_freem(m); |
return; |
return; |
} |
} |
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SOFTNET_UNLOCK(); |
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/* |
/* |
* The process-level routing demon needs to receive |
* The process-level routing demon needs to receive |
* all multicast IGMP packets, whether or not this |
* all multicast IGMP packets, whether or not this |
* host belongs to their destination groups. |
* host belongs to their destination groups. |
*/ |
*/ |
if (ip->ip_p == IPPROTO_IGMP) |
if (ip->ip_p == IPPROTO_IGMP) { |
goto ours; |
goto ours; |
|
} |
IP_STATINC(IP_STAT_CANTFORWARD); |
IP_STATINC(IP_STAT_CANTFORWARD); |
} |
} |
#endif |
#endif |
Line 669 ip_input(struct mbuf *m) |
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Line 677 ip_input(struct mbuf *m) |
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* See if we belong to the destination multicast group on the |
* See if we belong to the destination multicast group on the |
* arrival interface. |
* arrival interface. |
*/ |
*/ |
IN_LOOKUP_MULTI(ip->ip_dst, ifp, inm); |
if (!in_multi_group(ip->ip_dst, ifp, 0)) { |
if (inm == NULL) { |
|
IP_STATINC(IP_STAT_CANTFORWARD); |
IP_STATINC(IP_STAT_CANTFORWARD); |
m_freem(m); |
m_freem(m); |
return; |
return; |
Line 701 ip_input(struct mbuf *m) |
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Line 708 ip_input(struct mbuf *m) |
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} |
} |
#ifdef IPSEC |
#ifdef IPSEC |
/* Perform IPsec, if any. */ |
/* Perform IPsec, if any. */ |
if (ipsec4_input(m, IP_FORWARDING | (ip_directedbcast ? |
if (ipsec_used) { |
IP_ALLOWBROADCAST : 0)) != 0) { |
SOFTNET_LOCK(); |
goto bad; |
if (ipsec4_input(m, IP_FORWARDING | |
|
(ip_directedbcast ? IP_ALLOWBROADCAST : 0)) != 0) { |
|
SOFTNET_UNLOCK(); |
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goto bad; |
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} |
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SOFTNET_UNLOCK(); |
} |
} |
#endif |
#endif |
ip_forward(m, srcrt); |
ip_forward(m, srcrt); |
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* Note that we do not visit this with protocols with PCB layer |
* Note that we do not visit this with protocols with PCB layer |
* code - like UDP/TCP/raw IP. |
* code - like UDP/TCP/raw IP. |
*/ |
*/ |
if ((inetsw[ip_protox[ip->ip_p]].pr_flags & PR_LASTHDR) != 0) { |
if (ipsec_used && |
|
(inetsw[ip_protox[ip->ip_p]].pr_flags & PR_LASTHDR) != 0) { |
|
SOFTNET_LOCK(); |
if (ipsec4_input(m, 0) != 0) { |
if (ipsec4_input(m, 0) != 0) { |
|
SOFTNET_UNLOCK(); |
goto bad; |
goto bad; |
} |
} |
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SOFTNET_UNLOCK(); |
} |
} |
#endif |
#endif |
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ia->ia_ifa.ifa_data.ifad_inbytes += ntohs(ip->ip_len); |
ia->ia_ifa.ifa_data.ifad_inbytes += ntohs(ip->ip_len); |
#endif |
#endif |
IP_STATINC(IP_STAT_DELIVERED); |
IP_STATINC(IP_STAT_DELIVERED); |
{ |
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int off = hlen, nh = ip->ip_p; |
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const int off = hlen, nh = ip->ip_p; |
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SOFTNET_LOCK(); |
(*inetsw[ip_protox[nh]].pr_input)(m, off, nh); |
(*inetsw[ip_protox[nh]].pr_input)(m, off, nh); |
|
SOFTNET_UNLOCK(); |
return; |
return; |
} |
|
bad: |
bad: |
m_freem(m); |
m_freem(m); |
return; |
return; |
Line 1045 ip_rtaddr(struct in_addr dst) |
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Line 1062 ip_rtaddr(struct in_addr dst) |
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|
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sockaddr_in_init(&u.dst4, &dst, 0); |
sockaddr_in_init(&u.dst4, &dst, 0); |
|
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if ((rt = rtcache_lookup(&ipforward_rt, &u.dst)) == NULL) |
SOFTNET_LOCK(); |
|
rt = rtcache_lookup(&ipforward_rt, &u.dst); |
|
SOFTNET_UNLOCK(); |
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if (rt == NULL) |
return NULL; |
return NULL; |
|
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return ifatoia(rt->rt_ifa); |
return ifatoia(rt->rt_ifa); |
Line 1175 ip_forward(struct mbuf *m, int srcrt) |
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Line 1195 ip_forward(struct mbuf *m, int srcrt) |
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struct sockaddr dst; |
struct sockaddr dst; |
struct sockaddr_in dst4; |
struct sockaddr_in dst4; |
} u; |
} u; |
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uint64_t *ips; |
|
|
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KASSERTMSG(cpu_softintr_p(), "ip_forward: not in the software " |
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"interrupt handler; synchronization assumptions violated"); |
|
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/* |
/* |
* We are now in the output path. |
* We are now in the output path. |
Line 1192 ip_forward(struct mbuf *m, int srcrt) |
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Line 1216 ip_forward(struct mbuf *m, int srcrt) |
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m_freem(m); |
m_freem(m); |
return; |
return; |
} |
} |
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SOFTNET_LOCK(); |
|
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if (ip->ip_ttl <= IPTTLDEC) { |
if (ip->ip_ttl <= IPTTLDEC) { |
icmp_error(m, ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS, dest, 0); |
icmp_error(m, ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS, dest, 0); |
|
SOFTNET_UNLOCK(); |
return; |
return; |
} |
} |
|
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sockaddr_in_init(&u.dst4, &ip->ip_dst, 0); |
sockaddr_in_init(&u.dst4, &ip->ip_dst, 0); |
|
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if ((rt = rtcache_lookup(&ipforward_rt, &u.dst)) == NULL) { |
if ((rt = rtcache_lookup(&ipforward_rt, &u.dst)) == NULL) { |
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_NET, dest, 0); |
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_NET, dest, 0); |
|
SOFTNET_UNLOCK(); |
return; |
return; |
} |
} |
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Line 1246 ip_forward(struct mbuf *m, int srcrt) |
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Line 1276 ip_forward(struct mbuf *m, int srcrt) |
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(IP_FORWARDING | (ip_directedbcast ? IP_ALLOWBROADCAST : 0)), |
(IP_FORWARDING | (ip_directedbcast ? IP_ALLOWBROADCAST : 0)), |
NULL, NULL); |
NULL, NULL); |
|
|
if (error) |
if (error) { |
IP_STATINC(IP_STAT_CANTFORWARD); |
IP_STATINC(IP_STAT_CANTFORWARD); |
else { |
goto error; |
uint64_t *ips = IP_STAT_GETREF(); |
} |
ips[IP_STAT_FORWARD]++; |
|
if (type) { |
ips = IP_STAT_GETREF(); |
ips[IP_STAT_REDIRECTSENT]++; |
ips[IP_STAT_FORWARD]++; |
IP_STAT_PUTREF(); |
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} else { |
if (type) { |
IP_STAT_PUTREF(); |
ips[IP_STAT_REDIRECTSENT]++; |
if (mcopy) { |
IP_STAT_PUTREF(); |
|
goto redirect; |
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} |
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IP_STAT_PUTREF(); |
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if (mcopy) { |
#ifdef GATEWAY |
#ifdef GATEWAY |
if (mcopy->m_flags & M_CANFASTFWD) |
if (mcopy->m_flags & M_CANFASTFWD) |
ipflow_create(&ipforward_rt, mcopy); |
ipflow_create(&ipforward_rt, mcopy); |
#endif |
#endif |
m_freem(mcopy); |
m_freem(mcopy); |
} |
|
return; |
|
} |
|
} |
} |
if (mcopy == NULL) |
|
|
SOFTNET_UNLOCK(); |
|
return; |
|
|
|
redirect: |
|
error: |
|
if (mcopy == NULL) { |
|
SOFTNET_UNLOCK(); |
return; |
return; |
|
} |
|
|
switch (error) { |
switch (error) { |
|
|
Line 1291 ip_forward(struct mbuf *m, int srcrt) |
|
Line 1331 ip_forward(struct mbuf *m, int srcrt) |
|
if ((rt = rtcache_validate(&ipforward_rt)) != NULL) |
if ((rt = rtcache_validate(&ipforward_rt)) != NULL) |
destmtu = rt->rt_ifp->if_mtu; |
destmtu = rt->rt_ifp->if_mtu; |
#ifdef IPSEC |
#ifdef IPSEC |
(void)ipsec4_forward(mcopy, &destmtu); |
if (ipsec_used) |
|
(void)ipsec4_forward(mcopy, &destmtu); |
#endif |
#endif |
IP_STATINC(IP_STAT_CANTFRAG); |
IP_STATINC(IP_STAT_CANTFRAG); |
break; |
break; |
Line 1305 ip_forward(struct mbuf *m, int srcrt) |
|
Line 1346 ip_forward(struct mbuf *m, int srcrt) |
|
*/ |
*/ |
if (mcopy) |
if (mcopy) |
m_freem(mcopy); |
m_freem(mcopy); |
|
SOFTNET_UNLOCK(); |
return; |
return; |
} |
} |
icmp_error(mcopy, type, code, dest, destmtu); |
icmp_error(mcopy, type, code, dest, destmtu); |
|
SOFTNET_UNLOCK(); |
} |
} |
|
|
void |
void |
Line 1604 sysctl_net_inet_ip_setup(struct sysctllo |
|
Line 1647 sysctl_net_inet_ip_setup(struct sysctllo |
|
sysctl_net_inet_ip_stats, 0, NULL, 0, |
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); |
|
#if NARP |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "dad_count", |
|
SYSCTL_DESCR("Number of Duplicate Address Detection " |
|
"probes to send"), |
|
NULL, 0, &ip_dad_count, 0, |
|
CTL_NET, PF_INET, IPPROTO_IP, |
|
IPCTL_DAD_COUNT, CTL_EOL); |
|
#endif |
|
|
/* anonportalgo RFC6056 subtree */ |
/* anonportalgo RFC6056 subtree */ |
const struct sysctlnode *portalgo_node; |
const struct sysctlnode *portalgo_node; |