version 1.80.2.1, 2006/02/01 14:52:41 |
version 1.82.6.2, 2006/05/24 10:59:09 |
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__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_inet.h" |
#include "opt_inet.h" |
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#include "opt_inet6.h" |
#include "opt_ipsec.h" |
#include "opt_ipsec.h" |
#include "opt_pfil_hooks.h" |
#include "opt_pfil_hooks.h" |
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Line 129 static int ip6qmaxlen = IFQ_MAXLEN; |
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Line 130 static int ip6qmaxlen = IFQ_MAXLEN; |
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struct in6_ifaddr *in6_ifaddr; |
struct in6_ifaddr *in6_ifaddr; |
struct ifqueue ip6intrq; |
struct ifqueue ip6intrq; |
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extern struct callout in6_tmpaddrtimer_ch; |
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int ip6_forward_srcrt; /* XXX */ |
int ip6_forward_srcrt; /* XXX */ |
int ip6_sourcecheck; /* XXX */ |
int ip6_sourcecheck; /* XXX */ |
int ip6_sourcecheck_interval; /* XXX */ |
int ip6_sourcecheck_interval; /* XXX */ |
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addrsel_policy_init(); |
addrsel_policy_init(); |
nd6_init(); |
nd6_init(); |
frag6_init(); |
frag6_init(); |
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ip6_desync_factor = arc4random() % MAX_TEMP_DESYNC_FACTOR; |
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ip6_init2((void *)0); |
ip6_init2((void *)0); |
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Line 192 ip6_init2(dummy) |
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Line 196 ip6_init2(dummy) |
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/* nd6_timer_init */ |
/* nd6_timer_init */ |
callout_init(&nd6_timer_ch); |
callout_init(&nd6_timer_ch); |
callout_reset(&nd6_timer_ch, hz, nd6_timer, NULL); |
callout_reset(&nd6_timer_ch, hz, nd6_timer, NULL); |
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/* timer for regeneranation of temporary addresses randomize ID */ |
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callout_init(&in6_tmpaddrtimer_ch); |
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callout_reset(&in6_tmpaddrtimer_ch, |
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(ip6_temp_preferred_lifetime - ip6_desync_factor - |
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ip6_temp_regen_advance) * hz, |
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in6_tmpaddrtimer, NULL); |
} |
} |
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/* |
/* |
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splx(s); |
splx(s); |
if (m == 0) |
if (m == 0) |
return; |
return; |
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/* drop the packet if IPv6 operation is disabled on the IF */ |
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if ((ND_IFINFO(m->m_pkthdr.rcvif)->flags & ND6_IFF_IFDISABLED)) { |
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m_freem(m); |
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return; |
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} |
ip6_input(m); |
ip6_input(m); |
} |
} |
} |
} |
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if (ip6->ip6_plen == 0 && plen == 0) { |
if (ip6->ip6_plen == 0 && plen == 0) { |
/* |
/* |
* Note that if a valid jumbo payload option is |
* Note that if a valid jumbo payload option is |
* contained, ip6_hoptops_input() must set a valid |
* contained, ip6_hopopts_input() must set a valid |
* (non-zero) payload length to the variable plen. |
* (non-zero) payload length to the variable plen. |
*/ |
*/ |
ip6stat.ip6s_badoptions++; |
ip6stat.ip6s_badoptions++; |
Line 1015 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1031 ip6_savecontrol(in6p, mp, ip6, m) |
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struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
struct mbuf *m; |
struct mbuf *m; |
{ |
{ |
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#ifdef RFC2292 |
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#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
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#else |
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#define IS2292(x, y) (y) |
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#endif |
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#ifdef SO_TIMESTAMP |
#ifdef SO_TIMESTAMP |
if (in6p->in6p_socket->so_options & SO_TIMESTAMP) { |
if (in6p->in6p_socket->so_options & SO_TIMESTAMP) { |
Line 1027 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1048 ip6_savecontrol(in6p, mp, ip6, m) |
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mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
} |
} |
#endif |
#endif |
if (in6p->in6p_flags & IN6P_RECVDSTADDR) { |
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*mp = sbcreatecontrol((caddr_t) &ip6->ip6_dst, |
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sizeof(struct in6_addr), IPV6_RECVDSTADDR, IPPROTO_IPV6); |
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if (*mp) |
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mp = &(*mp)->m_next; |
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} |
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#ifdef noyet |
/* some OSes call this logic with IPv4 packet, for SO_TIMESTAMP */ |
/* options were tossed above */ |
if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) |
if (in6p->in6p_flags & IN6P_RECVOPTS) |
return; |
/* broken */ |
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/* ip6_srcroute doesn't do what we want here, need to fix */ |
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if (in6p->in6p_flags & IPV6P_RECVRETOPTS) |
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/* broken */ |
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#endif |
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/* RFC 2292 sec. 5 */ |
/* RFC 2292 sec. 5 */ |
if ((in6p->in6p_flags & IN6P_PKTINFO) != 0) { |
if ((in6p->in6p_flags & IN6P_PKTINFO) != 0) { |
struct in6_pktinfo pi6; |
struct in6_pktinfo pi6; |
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bcopy(&ip6->ip6_dst, &pi6.ipi6_addr, sizeof(struct in6_addr)); |
bcopy(&ip6->ip6_dst, &pi6.ipi6_addr, sizeof(struct in6_addr)); |
in6_clearscope(&pi6.ipi6_addr); /* XXX */ |
in6_clearscope(&pi6.ipi6_addr); /* XXX */ |
pi6.ipi6_ifindex = (m && m->m_pkthdr.rcvif) |
pi6.ipi6_ifindex = m->m_pkthdr.rcvif ? |
? m->m_pkthdr.rcvif->if_index |
m->m_pkthdr.rcvif->if_index : 0; |
: 0; |
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*mp = sbcreatecontrol((caddr_t) &pi6, |
*mp = sbcreatecontrol((caddr_t) &pi6, |
sizeof(struct in6_pktinfo), IPV6_PKTINFO, IPPROTO_IPV6); |
sizeof(struct in6_pktinfo), |
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IS2292(IPV6_2292PKTINFO, IPV6_PKTINFO), IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
} |
} |
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if (in6p->in6p_flags & IN6P_HOPLIMIT) { |
if (in6p->in6p_flags & IN6P_HOPLIMIT) { |
int hlim = ip6->ip6_hlim & 0xff; |
int hlim = ip6->ip6_hlim & 0xff; |
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*mp = sbcreatecontrol((caddr_t) &hlim, sizeof(int), |
*mp = sbcreatecontrol((caddr_t) &hlim, sizeof(int), |
IPV6_HOPLIMIT, IPPROTO_IPV6); |
IS2292(IPV6_2292HOPLIMIT, IPV6_HOPLIMIT), IPPROTO_IPV6); |
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if (*mp) |
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mp = &(*mp)->m_next; |
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} |
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if ((in6p->in6p_flags & IN6P_TCLASS) != 0) { |
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u_int32_t flowinfo; |
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int tclass; |
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flowinfo = (u_int32_t)ntohl(ip6->ip6_flow & IPV6_FLOWINFO_MASK); |
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flowinfo >>= 20; |
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tclass = flowinfo & 0xff; |
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*mp = sbcreatecontrol((caddr_t)&tclass, sizeof(tclass), |
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IPV6_TCLASS, IPPROTO_IPV6); |
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if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
} |
} |
/* IN6P_NEXTHOP - for outgoing packet only */ |
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/* |
/* |
* IPV6_HOPOPTS socket option. Recall that we required super-user |
* IPV6_HOPOPTS socket option. Recall that we required super-user |
* privilege for the option (see ip6_ctloutput), but it might be too |
* privilege for the option (see ip6_ctloutput), but it might be too |
* strict, since there might be some hop-by-hop options which can be |
* strict, since there might be some hop-by-hop options which can be |
* returned to normal user. |
* returned to normal user. |
* See also RFC 2292 section 6. |
* See also RFC3542 section 8 (or RFC2292 section 6). |
*/ |
*/ |
if ((in6p->in6p_flags & IN6P_HOPOPTS) != 0) { |
if ((in6p->in6p_flags & IN6P_HOPOPTS) != 0) { |
/* |
/* |
Line 1104 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1131 ip6_savecontrol(in6p, mp, ip6, m) |
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* XXX: We copy whole the header even if a jumbo |
* XXX: We copy whole the header even if a jumbo |
* payload option is included, which option is to |
* payload option is included, which option is to |
* be removed before returning in the RFC 2292. |
* be removed before returning in the RFC 2292. |
* But it's too painful operation... |
* Note: this constraint is removed in RFC3542. |
*/ |
*/ |
*mp = sbcreatecontrol((caddr_t)hbh, hbhlen, |
*mp = sbcreatecontrol((caddr_t)hbh, hbhlen, |
IPV6_HOPOPTS, IPPROTO_IPV6); |
IS2292(IPV6_2292HOPOPTS, IPV6_HOPOPTS), |
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IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
m_freem(ext); |
m_freem(ext); |
Line 1126 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1154 ip6_savecontrol(in6p, mp, ip6, m) |
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* Note that the order of the headers remains in |
* Note that the order of the headers remains in |
* the chain of ancillary data. |
* the chain of ancillary data. |
*/ |
*/ |
while (1) { /* is explicit loop prevention necessary? */ |
for (;;) { /* is explicit loop prevention necessary? */ |
struct ip6_ext *ip6e = NULL; |
struct ip6_ext *ip6e = NULL; |
int elen; |
int elen; |
struct mbuf *ext = NULL; |
struct mbuf *ext = NULL; |
Line 1168 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1196 ip6_savecontrol(in6p, mp, ip6, m) |
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break; |
break; |
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*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
IPV6_DSTOPTS, IPPROTO_IPV6); |
IS2292(IPV6_2292DSTOPTS, IPV6_DSTOPTS), |
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IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
break; |
break; |
Line 1178 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1207 ip6_savecontrol(in6p, mp, ip6, m) |
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break; |
break; |
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*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
*mp = sbcreatecontrol((caddr_t)ip6e, elen, |
IPV6_RTHDR, IPPROTO_IPV6); |
IS2292(IPV6_2292RTHDR, IPV6_RTHDR), |
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IPPROTO_IPV6); |
if (*mp) |
if (*mp) |
mp = &(*mp)->m_next; |
mp = &(*mp)->m_next; |
break; |
break; |
Line 1210 ip6_savecontrol(in6p, mp, ip6, m) |
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Line 1240 ip6_savecontrol(in6p, mp, ip6, m) |
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; |
; |
} |
} |
} |
} |
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#undef IS2292 |
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void |
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ip6_notify_pmtu(struct in6pcb *in6p, struct sockaddr_in6 *dst, uint32_t *mtu) |
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{ |
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struct socket *so; |
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struct mbuf *m_mtu; |
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struct ip6_mtuinfo mtuctl; |
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so = in6p->in6p_socket; |
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if (mtu == NULL) |
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return; |
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#ifdef DIAGNOSTIC |
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if (so == NULL) /* I believe this is impossible */ |
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panic("ip6_notify_pmtu: socket is NULL"); |
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#endif |
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memset(&mtuctl, 0, sizeof(mtuctl)); /* zero-clear for safety */ |
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mtuctl.ip6m_mtu = *mtu; |
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mtuctl.ip6m_addr = *dst; |
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if (sa6_recoverscope(&mtuctl.ip6m_addr)) |
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return; |
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if ((m_mtu = sbcreatecontrol((caddr_t)&mtuctl, sizeof(mtuctl), |
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IPV6_PATHMTU, IPPROTO_IPV6)) == NULL) |
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return; |
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if (sbappendaddr(&so->so_rcv, (struct sockaddr *)dst, NULL, m_mtu) |
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== 0) { |
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m_freem(m_mtu); |
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/* XXX: should count statistics */ |
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} else |
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sorwakeup(so); |
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return; |
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} |
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/* |
/* |
* pull single extension header from mbuf chain. returns single mbuf that |
* pull single extension header from mbuf chain. returns single mbuf that |
Line 1337 ip6_nexthdr(m, off, proto, nxtp) |
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Line 1406 ip6_nexthdr(m, off, proto, nxtp) |
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switch (proto) { |
switch (proto) { |
case IPPROTO_IPV6: |
case IPPROTO_IPV6: |
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/* do not chase beyond intermediate IPv6 headers */ |
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if (off != 0) |
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return -1; |
if (m->m_pkthdr.len < off + sizeof(ip6)) |
if (m->m_pkthdr.len < off + sizeof(ip6)) |
return -1; |
return -1; |
m_copydata(m, off, sizeof(ip6), (caddr_t)&ip6); |
m_copydata(m, off, sizeof(ip6), (caddr_t)&ip6); |
Line 1412 ip6_lasthdr(m, off, proto, nxtp) |
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Line 1484 ip6_lasthdr(m, off, proto, nxtp) |
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nxt = -1; |
nxt = -1; |
nxtp = &nxt; |
nxtp = &nxt; |
} |
} |
while (1) { |
for (;;) { |
newoff = ip6_nexthdr(m, off, proto, nxtp); |
newoff = ip6_nexthdr(m, off, proto, nxtp); |
if (newoff < 0) |
if (newoff < 0) |
return off; |
return off; |
Line 1480 u_char inet6ctlerrmap[PRC_NCMDS] = { |
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Line 1552 u_char inet6ctlerrmap[PRC_NCMDS] = { |
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SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, "sysctl net.inet6.ip6 subtree setup") |
SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, "sysctl net.inet6.ip6 subtree setup") |
{ |
{ |
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#ifdef RFC2292 |
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#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
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#else |
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#define IS2292(x, y) (y) |
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#endif |
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sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
Line 1696 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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Line 1773 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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#endif /* IPNOPRIVPORTS */ |
#endif /* IPNOPRIVPORTS */ |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
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CTLTYPE_INT, "use_tempaddr", |
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SYSCTL_DESCR("Use temporary address"), |
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NULL, 0, &ip6_use_tempaddr, 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, "temppltime", |
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SYSCTL_DESCR("preferred lifetime of a temporary address"), |
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NULL, 0, &ip6_temp_preferred_lifetime, 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, "tempvltime", |
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SYSCTL_DESCR("valid lifetime of a temporary address"), |
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NULL, 0, &ip6_temp_valid_lifetime, 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, |
CTLTYPE_INT, "maxfrags", |
CTLTYPE_INT, "maxfrags", |
SYSCTL_DESCR("Maximum fragments in reassembly queue"), |
SYSCTL_DESCR("Maximum fragments in reassembly queue"), |
NULL, 0, &ip6_maxfrags, 0, |
NULL, 0, &ip6_maxfrags, 0, |
Line 1715 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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Line 1813 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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NULL, 0, &ip6_use_defzone, 0, |
NULL, 0, &ip6_use_defzone, 0, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
IPV6CTL_USE_DEFAULTZONE, CTL_EOL); |
IPV6CTL_USE_DEFAULTZONE, 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, "mcast_pmtu", |
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SYSCTL_DESCR("Enable pMTU discovery for multicast packet"), |
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NULL, 0, &ip6_mcast_pmtu, 0, |
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CTL_NET, PF_INET6, IPPROTO_IPV6, |
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CTL_CREATE, CTL_EOL); |
} |
} |