version 1.133.2.2, 2012/04/05 21:33:46 |
version 1.136.6.2, 2018/01/30 18:47:35 |
Line 112 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 112 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet6/in6_ifattach.h> |
#include <netinet6/in6_ifattach.h> |
#include <netinet6/nd6.h> |
#include <netinet6/nd6.h> |
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#ifdef KAME_IPSEC |
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#include <netinet6/ipsec.h> |
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#include <netinet6/ipsec_private.h> |
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#endif |
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#ifdef FAST_IPSEC |
#ifdef FAST_IPSEC |
#include <netipsec/ipsec.h> |
#include <netipsec/ipsec.h> |
#include <netipsec/ipsec6.h> |
#include <netipsec/ipsec6.h> |
Line 275 ip6_input(struct mbuf *m) |
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Line 280 ip6_input(struct mbuf *m) |
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int s, error; |
int s, error; |
#endif |
#endif |
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#ifdef KAME_IPSEC |
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/* |
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* should the inner packet be considered authentic? |
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* see comment in ah4_input(). |
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*/ |
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m->m_flags &= ~M_AUTHIPHDR; |
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m->m_flags &= ~M_AUTHIPDGM; |
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#endif |
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/* |
/* |
* make sure we don't have onion peering information into m_tag. |
* make sure we don't have onion peering information into m_tag. |
*/ |
*/ |
Line 338 ip6_input(struct mbuf *m) |
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Line 352 ip6_input(struct mbuf *m) |
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goto bad; |
goto bad; |
} |
} |
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#if defined(KAME_IPSEC) |
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/* IPv6 fast forwarding is not compatible with IPsec. */ |
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m->m_flags &= ~M_CANFASTFWD; |
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#else |
/* |
/* |
* Assume that we can create a fast-forward IP flow entry |
* Assume that we can create a fast-forward IP flow entry |
* based on this packet. |
* based on this packet. |
*/ |
*/ |
m->m_flags |= M_CANFASTFWD; |
m->m_flags |= M_CANFASTFWD; |
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#endif |
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#ifdef PFIL_HOOKS |
#ifdef PFIL_HOOKS |
/* |
/* |
Line 356 ip6_input(struct mbuf *m) |
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Line 375 ip6_input(struct mbuf *m) |
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* let ipfilter look at packet on the wire, |
* let ipfilter look at packet on the wire, |
* not the decapsulated packet. |
* not the decapsulated packet. |
*/ |
*/ |
#if defined(FAST_IPSEC) |
#ifdef KAME_IPSEC |
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if (!ipsec_getnhist(m)) |
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#elif defined(FAST_IPSEC) |
if (!ipsec_indone(m)) |
if (!ipsec_indone(m)) |
#else |
#else |
if (1) |
if (1) |
Line 765 ip6_input(struct mbuf *m) |
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Line 786 ip6_input(struct mbuf *m) |
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} |
} |
} |
} |
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#ifdef KAME_IPSEC |
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/* |
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* enforce IPsec policy checking if we are seeing last header. |
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* note that we do not visit this with protocols with pcb layer |
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* code - like udp/tcp/raw ip. |
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*/ |
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if ((inet6sw[ip6_protox[nxt]].pr_flags & PR_LASTHDR) != 0 && |
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ipsec6_in_reject(m, NULL)) { |
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IPSEC6_STATINC(IPSEC_STAT_IN_POLVIO); |
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goto bad; |
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} |
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#endif |
#ifdef FAST_IPSEC |
#ifdef FAST_IPSEC |
/* |
/* |
* enforce IPsec policy checking if we are seeing last header. |
* enforce IPsec policy checking if we are seeing last header. |
Line 1386 ip6_pullexthdr(struct mbuf *m, size_t of |
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Line 1419 ip6_pullexthdr(struct mbuf *m, size_t of |
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} |
} |
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/* |
/* |
* Get pointer to the previous header followed by the header |
* Get offset to the previous header followed by the header |
* currently processed. |
* currently processed. |
* XXX: This function supposes that |
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* M includes all headers, |
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* the next header field and the header length field of each header |
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* are valid, and |
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* the sum of each header length equals to OFF. |
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* Because of these assumptions, this function must be called very |
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* carefully. Moreover, it will not be used in the near future when |
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* we develop `neater' mechanism to process extension headers. |
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*/ |
*/ |
u_int8_t * |
int |
ip6_get_prevhdr(struct mbuf *m, int off) |
ip6_get_prevhdr(struct mbuf *m, int off) |
{ |
{ |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
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if (off == sizeof(struct ip6_hdr)) |
if (off == sizeof(struct ip6_hdr)) { |
return (&ip6->ip6_nxt); |
return offsetof(struct ip6_hdr, ip6_nxt); |
else { |
} else if (off < sizeof(struct ip6_hdr)) { |
int len, nxt; |
panic("%s: off < sizeof(struct ip6_hdr)", __func__); |
struct ip6_ext *ip6e = NULL; |
} else { |
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int len, nlen, nxt; |
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struct ip6_ext ip6e; |
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nxt = ip6->ip6_nxt; |
nxt = ip6->ip6_nxt; |
len = sizeof(struct ip6_hdr); |
len = sizeof(struct ip6_hdr); |
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nlen = 0; |
while (len < off) { |
while (len < off) { |
ip6e = (struct ip6_ext *)(mtod(m, char *) + len); |
m_copydata(m, len, sizeof(ip6e), &ip6e); |
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switch (nxt) { |
switch (nxt) { |
case IPPROTO_FRAGMENT: |
case IPPROTO_FRAGMENT: |
len += sizeof(struct ip6_frag); |
nlen = sizeof(struct ip6_frag); |
break; |
break; |
case IPPROTO_AH: |
case IPPROTO_AH: |
len += (ip6e->ip6e_len + 2) << 2; |
nlen = (ip6e.ip6e_len + 2) << 2; |
break; |
break; |
default: |
default: |
len += (ip6e->ip6e_len + 1) << 3; |
nlen = (ip6e.ip6e_len + 1) << 3; |
break; |
break; |
} |
} |
nxt = ip6e->ip6e_nxt; |
len += nlen; |
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nxt = ip6e.ip6e_nxt; |
} |
} |
if (ip6e) |
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return (&ip6e->ip6e_nxt); |
return (len - nlen); |
else |
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return NULL; |
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} |
} |
} |
} |
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Line 1956 sysctl_net_inet6_ip6_setup(struct sysctl |
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Line 1983 sysctl_net_inet6_ip6_setup(struct sysctl |
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CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_CREATE, CTL_EOL); |
CTL_CREATE, CTL_EOL); |
#endif |
#endif |
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
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CTLTYPE_INT, "neighborgcthresh", |
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SYSCTL_DESCR("Maximum number of entries in neighbor" |
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" cache"), |
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NULL, 1, &ip6_neighborgcthresh, 0, |
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CTL_NET, PF_INET6, IPPROTO_IPV6, |
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CTL_CREATE, CTL_EOL); |
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
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CTLTYPE_INT, "maxifprefixes", |
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SYSCTL_DESCR("Maximum number of prefixes created by" |
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" route advertisement per interface"), |
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NULL, 1, &ip6_maxifprefixes, 0, |
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CTL_NET, PF_INET6, IPPROTO_IPV6, |
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CTL_CREATE, CTL_EOL); |
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
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CTLTYPE_INT, "maxifdefrouters", |
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SYSCTL_DESCR("Maximum number of default routers created" |
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" by route advertisement per interface"), |
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NULL, 1, &ip6_maxifdefrouters, 0, |
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CTL_NET, PF_INET6, IPPROTO_IPV6, |
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CTL_CREATE, CTL_EOL); |
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
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CTLTYPE_INT, "maxdynroutes", |
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SYSCTL_DESCR("Maximum number of routes created via" |
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" redirect"), |
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NULL, 1, &ip6_maxdynroutes, 0, |
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CTL_NET, PF_INET6, IPPROTO_IPV6, |
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CTL_CREATE, CTL_EOL); |
} |
} |
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void |
void |