| version 1.137.2.1, 2001/11/12 21:19:24 |
version 1.138, 2001/10/29 07:02:33 |
| Line 410 ip_input(struct mbuf *m) |
|
| Line 410 ip_input(struct mbuf *m) |
|
| * 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. |
| */ |
*/ |
| if (TAILQ_FIRST(&in_ifaddr) == 0) |
if (in_ifaddr.tqh_first == 0) |
| goto bad; |
goto bad; |
| ipstat.ips_total++; |
ipstat.ips_total++; |
| if (m->m_len < sizeof (struct ip) && |
if (m->m_len < sizeof (struct ip) && |
| Line 573 ip_input(struct mbuf *m) |
|
| Line 573 ip_input(struct mbuf *m) |
|
| * as not mine. |
* as not mine. |
| */ |
*/ |
| downmatch = 0; |
downmatch = 0; |
| LIST_FOREACH(ia, &IN_IFADDR_HASH(ip->ip_dst.s_addr), ia_hash) { |
for (ia = IN_IFADDR_HASH(ip->ip_dst.s_addr).lh_first; |
| |
ia != NULL; |
| |
ia = ia->ia_hash.le_next) { |
| if (in_hosteq(ia->ia_addr.sin_addr, ip->ip_dst)) { |
if (in_hosteq(ia->ia_addr.sin_addr, ip->ip_dst)) { |
| if ((ia->ia_ifp->if_flags & IFF_UP) != 0) |
if ((ia->ia_ifp->if_flags & IFF_UP) != 0) |
| break; |
break; |
| Line 584 ip_input(struct mbuf *m) |
|
| Line 586 ip_input(struct mbuf *m) |
|
| if (ia != NULL) |
if (ia != NULL) |
| goto ours; |
goto ours; |
| if (m->m_pkthdr.rcvif->if_flags & IFF_BROADCAST) { |
if (m->m_pkthdr.rcvif->if_flags & IFF_BROADCAST) { |
| TAILQ_FOREACH(ifa, &m->m_pkthdr.rcvif->if_addrlist, ifa_list) { |
for (ifa = m->m_pkthdr.rcvif->if_addrlist.tqh_first; |
| if (ifa->ifa_addr->sa_family != AF_INET) |
ifa != NULL; ifa = ifa->ifa_list.tqe_next) { |
| continue; |
if (ifa->ifa_addr->sa_family != AF_INET) continue; |
| ia = ifatoia(ifa); |
ia = ifatoia(ifa); |
| 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) || |
|
|
| * of this datagram. |
* of this datagram. |
| */ |
*/ |
| IPQ_LOCK(); |
IPQ_LOCK(); |
| LIST_FOREACH(fp, &ipq, ipq_q) |
for (fp = ipq.lh_first; fp != NULL; fp = fp->ipq_q.le_next) |
| 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) && |
| Line 855 ip_reass(ipqe, fp) |
|
| Line 857 ip_reass(ipqe, fp) |
|
| /* |
/* |
| * Find a segment which begins after this one does. |
* Find a segment which begins after this one does. |
| */ |
*/ |
| for (p = NULL, q = LIST_FIRST(&fp->ipq_fragq); q != NULL; |
for (p = NULL, q = fp->ipq_fragq.lh_first; q != NULL; |
| p = q, q = LIST_NEXT(q, ipqe_q)) |
p = q, q = q->ipqe_q.le_next) |
| if (q->ipqe_ip->ip_off > ipqe->ipqe_ip->ip_off) |
if (q->ipqe_ip->ip_off > ipqe->ipqe_ip->ip_off) |
| break; |
break; |
| |
|
| Line 891 ip_reass(ipqe, fp) |
|
| Line 893 ip_reass(ipqe, fp) |
|
| m_adj(q->ipqe_m, i); |
m_adj(q->ipqe_m, i); |
| break; |
break; |
| } |
} |
| nq = LIST_NEXT(q, ipqe_q); |
nq = q->ipqe_q.le_next; |
| m_freem(q->ipqe_m); |
m_freem(q->ipqe_m); |
| LIST_REMOVE(q, ipqe_q); |
LIST_REMOVE(q, ipqe_q); |
| pool_put(&ipqent_pool, q); |
pool_put(&ipqent_pool, q); |
|
|
| LIST_INSERT_AFTER(p, ipqe, ipqe_q); |
LIST_INSERT_AFTER(p, ipqe, ipqe_q); |
| } |
} |
| next = 0; |
next = 0; |
| for (p = NULL, q = LIST_FIRST(&fp->ipq_fragq); q != NULL; |
for (p = NULL, q = fp->ipq_fragq.lh_first; q != NULL; |
| p = q, q = LIST_NEXT(q, ipqe_q)) { |
p = q, q = q->ipqe_q.le_next) { |
| if (q->ipqe_ip->ip_off != next) |
if (q->ipqe_ip->ip_off != next) |
| return (0); |
return (0); |
| next += q->ipqe_ip->ip_len; |
next += q->ipqe_ip->ip_len; |
|
|
| * Reassembly is complete. Check for a bogus message size and |
* Reassembly is complete. Check for a bogus message size and |
| * concatenate fragments. |
* concatenate fragments. |
| */ |
*/ |
| q = LIST_FIRST(&fp->ipq_fragq); |
q = fp->ipq_fragq.lh_first; |
| 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++; |
ipstat.ips_toolong++; |
|
|
| t = m->m_next; |
t = m->m_next; |
| m->m_next = 0; |
m->m_next = 0; |
| m_cat(m, t); |
m_cat(m, t); |
| nq = LIST_NEXT(q, ipqe_q); |
nq = q->ipqe_q.le_next; |
| pool_put(&ipqent_pool, q); |
pool_put(&ipqent_pool, q); |
| for (q = nq; q != NULL; q = nq) { |
for (q = nq; q != NULL; q = nq) { |
| t = q->ipqe_m; |
t = q->ipqe_m; |
| nq = LIST_NEXT(q, ipqe_q); |
nq = q->ipqe_q.le_next; |
| pool_put(&ipqent_pool, q); |
pool_put(&ipqent_pool, q); |
| m_cat(m, t); |
m_cat(m, t); |
| } |
} |
|
|
| |
|
| IPQ_LOCK_CHECK(); |
IPQ_LOCK_CHECK(); |
| |
|
| for (q = LIST_FIRST(&fp->ipq_fragq); q != NULL; q = p) { |
for (q = fp->ipq_fragq.lh_first; q != NULL; q = p) { |
| p = LIST_NEXT(q, ipqe_q); |
p = q->ipqe_q.le_next; |
| m_freem(q->ipqe_m); |
m_freem(q->ipqe_m); |
| LIST_REMOVE(q, ipqe_q); |
LIST_REMOVE(q, ipqe_q); |
| pool_put(&ipqent_pool, q); |
pool_put(&ipqent_pool, q); |
|
|
| int s = splsoftnet(); |
int s = splsoftnet(); |
| |
|
| IPQ_LOCK(); |
IPQ_LOCK(); |
| for (fp = LIST_FIRST(&ipq); fp != NULL; fp = nfp) { |
for (fp = ipq.lh_first; fp != NULL; fp = nfp) { |
| nfp = LIST_NEXT(fp, ipq_q); |
nfp = fp->ipq_q.le_next; |
| if (--fp->ipq_ttl == 0) { |
if (--fp->ipq_ttl == 0) { |
| ipstat.ips_fragtimeout++; |
ipstat.ips_fragtimeout++; |
| ip_freef(fp); |
ip_freef(fp); |
|
|
| if (ip_maxfragpackets < 0) |
if (ip_maxfragpackets < 0) |
| ; |
; |
| else { |
else { |
| while (ip_nfragpackets > ip_maxfragpackets && LIST_FIRST(&ipq)) |
while (ip_nfragpackets > ip_maxfragpackets && ipq.lh_first) |
| ip_freef(LIST_FIRST(&ipq)); |
ip_freef(ipq.lh_first); |
| } |
} |
| IPQ_UNLOCK(); |
IPQ_UNLOCK(); |
| #ifdef GATEWAY |
#ifdef GATEWAY |
|
|
| if (ipq_lock_try() == 0) |
if (ipq_lock_try() == 0) |
| return; |
return; |
| |
|
| while (LIST_FIRST(&ipq) != NULL) { |
while (ipq.lh_first != NULL) { |
| ipstat.ips_fragdropped++; |
ipstat.ips_fragdropped++; |
| ip_freef(LIST_FIRST(&ipq)); |
ip_freef(ipq.lh_first); |
| } |
} |
| |
|
| IPQ_UNLOCK(); |
IPQ_UNLOCK(); |
| Line 1434 ip_stripoptions(m, mopt) |
|
| Line 1436 ip_stripoptions(m, mopt) |
|
| ip->ip_hl = sizeof (struct ip) >> 2; |
ip->ip_hl = sizeof (struct ip) >> 2; |
| } |
} |
| |
|
| const int inetctlerrmap[PRC_NCMDS] = { |
int inetctlerrmap[PRC_NCMDS] = { |
| 0, 0, 0, 0, |
0, 0, 0, 0, |
| 0, EMSGSIZE, EHOSTDOWN, EHOSTUNREACH, |
0, EMSGSIZE, EHOSTDOWN, EHOSTUNREACH, |
| EHOSTUNREACH, EHOSTUNREACH, ECONNREFUSED, ECONNREFUSED, |
EHOSTUNREACH, EHOSTUNREACH, ECONNREFUSED, ECONNREFUSED, |