version 1.97, 2007/03/04 06:03:26 |
version 1.109, 2007/07/19 20:48:56 |
Line 136 static int ip6qmaxlen = IFQ_MAXLEN; |
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Line 136 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; |
extern callout_t 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 */ |
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ip6_desync_factor = arc4random() % MAX_TEMP_DESYNC_FACTOR; |
ip6_desync_factor = arc4random() % MAX_TEMP_DESYNC_FACTOR; |
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ip6_init2((void *)0); |
ip6_init2((void *)0); |
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#ifdef GATEWAY |
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ip6flow_init(ip6_hashsize); |
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#endif |
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#ifdef PFIL_HOOKS |
#ifdef PFIL_HOOKS |
/* Register our Packet Filter hook. */ |
/* Register our Packet Filter hook. */ |
Line 199 ip6_init2(void *dummy) |
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Line 202 ip6_init2(void *dummy) |
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{ |
{ |
|
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/* nd6_timer_init */ |
/* nd6_timer_init */ |
callout_init(&nd6_timer_ch); |
callout_init(&nd6_timer_ch, 0); |
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 */ |
/* timer for regeneranation of temporary addresses randomize ID */ |
callout_init(&in6_tmpaddrtimer_ch); |
callout_init(&in6_tmpaddrtimer_ch, 0); |
callout_reset(&in6_tmpaddrtimer_ch, |
callout_reset(&in6_tmpaddrtimer_ch, |
(ip6_temp_preferred_lifetime - ip6_desync_factor - |
(ip6_temp_preferred_lifetime - ip6_desync_factor - |
ip6_temp_regen_advance) * hz, |
ip6_temp_regen_advance) * hz, |
|
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} |
} |
} |
} |
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extern struct route_in6 ip6_forward_rt; |
extern struct route ip6_forward_rt; |
|
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void |
void |
ip6_input(struct mbuf *m) |
ip6_input(struct mbuf *m) |
{ |
{ |
struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
int off = sizeof(struct ip6_hdr), nest; |
int hit, off = sizeof(struct ip6_hdr), nest; |
u_int32_t plen; |
u_int32_t plen; |
u_int32_t rtalert = ~0; |
u_int32_t rtalert = ~0; |
int nxt, ours = 0; |
int nxt, ours = 0, rh_present = 0; |
struct ifnet *deliverifp = NULL; |
struct ifnet *deliverifp = NULL; |
int srcrt = 0; |
int srcrt = 0; |
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const struct rtentry *rt; |
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union { |
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struct sockaddr dst; |
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struct sockaddr_in6 dst6; |
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} u; |
#ifdef FAST_IPSEC |
#ifdef FAST_IPSEC |
struct m_tag *mtag; |
struct m_tag *mtag; |
struct tdb_ident *tdbi; |
struct tdb_ident *tdbi; |
Line 324 ip6_input(struct mbuf *m) |
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Line 332 ip6_input(struct mbuf *m) |
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goto bad; |
goto bad; |
} |
} |
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#if defined(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 |
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/* |
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* Assume that we can create a fast-forward IP flow entry |
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* based on this packet. |
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*/ |
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m->m_flags |= M_CANFASTFWD; |
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#endif |
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#ifdef PFIL_HOOKS |
#ifdef PFIL_HOOKS |
/* |
/* |
* Run through list of hooks for input packets. If there are any |
* Run through list of hooks for input packets. If there are any |
Line 460 ip6_input(struct mbuf *m) |
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Line 479 ip6_input(struct mbuf *m) |
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goto hbhcheck; |
goto hbhcheck; |
} |
} |
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sockaddr_in6_init(&u.dst6, &ip6->ip6_dst, 0, 0, 0); |
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/* |
/* |
* Unicast check |
* Unicast check |
*/ |
*/ |
if (!IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
rt = rtcache_lookup2(&ip6_forward_rt, &u.dst, 1, &hit); |
&((const struct sockaddr_in6 *)rtcache_getdst((const struct route *)&ip6_forward_rt))->sin6_addr)) |
if (hit) |
rtcache_free((struct route *)&ip6_forward_rt); |
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else |
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rtcache_check((struct route *)&ip6_forward_rt); |
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if (ip6_forward_rt.ro_rt != NULL) { |
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/* XXX Revalidated route is accounted wrongly. */ |
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ip6stat.ip6s_forward_cachehit++; |
ip6stat.ip6s_forward_cachehit++; |
} else { |
else |
struct sockaddr_in6 *dst6; |
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|
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ip6stat.ip6s_forward_cachemiss++; |
ip6stat.ip6s_forward_cachemiss++; |
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dst6 = &ip6_forward_rt.ro_dst; |
#define rt6_getkey(__rt) satocsin6(rt_getkey(__rt)) |
memset(dst6, 0, sizeof(*dst6)); |
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dst6->sin6_len = sizeof(struct sockaddr_in6); |
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dst6->sin6_family = AF_INET6; |
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dst6->sin6_addr = ip6->ip6_dst; |
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rtcache_init((struct route *)&ip6_forward_rt); |
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} |
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#define rt6_key(r) ((struct sockaddr_in6 *)((r)->rt_nodes->rn_key)) |
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/* |
/* |
* Accept the packet if the forwarding interface to the destination |
* Accept the packet if the forwarding interface to the destination |
Line 496 ip6_input(struct mbuf *m) |
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Line 501 ip6_input(struct mbuf *m) |
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* But we think it's even useful in some situations, e.g. when using |
* But we think it's even useful in some situations, e.g. when using |
* a special daemon which wants to intercept the packet. |
* a special daemon which wants to intercept the packet. |
*/ |
*/ |
if (ip6_forward_rt.ro_rt != NULL && |
if (rt != NULL && |
(ip6_forward_rt.ro_rt->rt_flags & |
(rt->rt_flags & (RTF_HOST|RTF_GATEWAY)) == RTF_HOST && |
(RTF_HOST|RTF_GATEWAY)) == RTF_HOST && |
!(rt->rt_flags & RTF_CLONED) && |
!(ip6_forward_rt.ro_rt->rt_flags & RTF_CLONED) && |
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#if 0 |
#if 0 |
/* |
/* |
* The check below is redundant since the comparison of |
* The check below is redundant since the comparison of |
* the destination and the key of the rtentry has |
* the destination and the key of the rtentry has |
* already done through looking up the routing table. |
* already done through looking up the routing table. |
*/ |
*/ |
IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, &rt6_getkey(rt)->sin6_addr) && |
&rt6_key(ip6_forward_rt.ro_rt)->sin6_addr) && |
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#endif |
#endif |
ip6_forward_rt.ro_rt->rt_ifp->if_type == IFT_LOOP) { |
rt->rt_ifp->if_type == IFT_LOOP) { |
struct in6_ifaddr *ia6 = |
struct in6_ifaddr *ia6 = (struct in6_ifaddr *)rt->rt_ifa; |
(struct in6_ifaddr *)ip6_forward_rt.ro_rt->rt_ifa; |
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if (ia6->ia6_flags & IN6_IFF_ANYCAST) |
if (ia6->ia6_flags & IN6_IFF_ANYCAST) |
m->m_flags |= M_ANYCAST6; |
m->m_flags |= M_ANYCAST6; |
/* |
/* |
Line 539 ip6_input(struct mbuf *m) |
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Line 541 ip6_input(struct mbuf *m) |
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*/ |
*/ |
#if defined(NFAITH) && 0 < NFAITH |
#if defined(NFAITH) && 0 < NFAITH |
if (ip6_keepfaith) { |
if (ip6_keepfaith) { |
if (ip6_forward_rt.ro_rt != NULL && |
if (rt != NULL && rt->rt_ifp != NULL && |
ip6_forward_rt.ro_rt->rt_ifp != NULL && |
rt->rt_ifp->if_type == IFT_FAITH) { |
ip6_forward_rt.ro_rt->rt_ifp->if_type == IFT_FAITH) { |
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/* XXX do we need more sanity checks? */ |
/* XXX do we need more sanity checks? */ |
ours = 1; |
ours = 1; |
deliverifp = ip6_forward_rt.ro_rt->rt_ifp; /* faith */ |
deliverifp = rt->rt_ifp; /* faith */ |
goto hbhcheck; |
goto hbhcheck; |
} |
} |
} |
} |
Line 738 ip6_input(struct mbuf *m) |
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Line 739 ip6_input(struct mbuf *m) |
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in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
nest = 0; |
nest = 0; |
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rh_present = 0; |
while (nxt != IPPROTO_DONE) { |
while (nxt != IPPROTO_DONE) { |
if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
ip6stat.ip6s_toomanyhdr++; |
ip6stat.ip6s_toomanyhdr++; |
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in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_hdrerr); |
goto bad; |
goto bad; |
} |
} |
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Line 754 ip6_input(struct mbuf *m) |
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Line 757 ip6_input(struct mbuf *m) |
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goto bad; |
goto bad; |
} |
} |
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if (nxt == IPPROTO_ROUTING) { |
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if (rh_present++) { |
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in6_ifstat_inc(m->m_pkthdr.rcvif, |
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ifs6_in_hdrerr); |
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ip6stat.ip6s_badoptions++; |
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goto bad; |
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} |
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} |
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#ifdef IPSEC |
#ifdef IPSEC |
/* |
/* |
* enforce IPsec policy checking if we are seeing last header. |
* enforce IPsec policy checking if we are seeing last header. |
Line 818 ip6_input(struct mbuf *m) |
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Line 830 ip6_input(struct mbuf *m) |
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* set/grab in6_ifaddr correspond to IPv6 destination address. |
* set/grab in6_ifaddr correspond to IPv6 destination address. |
*/ |
*/ |
static struct m_tag * |
static struct m_tag * |
ip6_setdstifaddr(m, ia6) |
ip6_setdstifaddr(struct mbuf *m, struct in6_ifaddr *ia6) |
struct mbuf *m; |
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struct in6_ifaddr *ia6; |
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{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
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Line 831 ip6_setdstifaddr(m, ia6) |
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Line 841 ip6_setdstifaddr(m, ia6) |
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} |
} |
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struct in6_ifaddr * |
struct in6_ifaddr * |
ip6_getdstifaddr(m) |
ip6_getdstifaddr(struct mbuf *m) |
struct mbuf *m; |
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{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
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Line 846 ip6_getdstifaddr(m) |
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Line 855 ip6_getdstifaddr(m) |
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/* |
/* |
* Hop-by-Hop options header processing. If a valid jumbo payload option is |
* Hop-by-Hop options header processing. If a valid jumbo payload option is |
* included, the real payload length will be stored in plenp. |
* included, the real payload length will be stored in plenp. |
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* |
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* rtalertp - XXX: should be stored more smart way |
*/ |
*/ |
static int |
static int |
ip6_hopopts_input(plenp, rtalertp, mp, offp) |
ip6_hopopts_input(u_int32_t *plenp, u_int32_t *rtalertp, |
u_int32_t *plenp; |
struct mbuf **mp, int *offp) |
u_int32_t *rtalertp; /* XXX: should be stored more smart way */ |
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struct mbuf **mp; |
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int *offp; |
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{ |
{ |
struct mbuf *m = *mp; |
struct mbuf *m = *mp; |
int off = *offp, hbhlen; |
int off = *offp, hbhlen; |
Line 896 ip6_hopopts_input(plenp, rtalertp, mp, o |
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Line 904 ip6_hopopts_input(plenp, rtalertp, mp, o |
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* opthead + hbhlen is located in continuous memory region. |
* opthead + hbhlen is located in continuous memory region. |
*/ |
*/ |
int |
int |
ip6_process_hopopts(m, opthead, hbhlen, rtalertp, plenp) |
ip6_process_hopopts(struct mbuf *m, u_int8_t *opthead, int hbhlen, |
struct mbuf *m; |
u_int32_t *rtalertp, u_int32_t *plenp) |
u_int8_t *opthead; |
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int hbhlen; |
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u_int32_t *rtalertp; |
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u_int32_t *plenp; |
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{ |
{ |
struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
int optlen = 0; |
int optlen = 0; |
Line 1033 ip6_process_hopopts(m, opthead, hbhlen, |
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Line 1037 ip6_process_hopopts(m, opthead, hbhlen, |
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* is not continuous in order to return an ICMPv6 error. |
* is not continuous in order to return an ICMPv6 error. |
*/ |
*/ |
int |
int |
ip6_unknown_opt(optp, m, off) |
ip6_unknown_opt(u_int8_t *optp, struct mbuf *m, int off) |
u_int8_t *optp; |
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struct mbuf *m; |
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int off; |
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{ |
{ |
struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
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Line 1078 ip6_unknown_opt(optp, m, off) |
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Line 1079 ip6_unknown_opt(optp, m, off) |
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* you are using IP6_EXTHDR_CHECK() not m_pulldown()) |
* you are using IP6_EXTHDR_CHECK() not m_pulldown()) |
*/ |
*/ |
void |
void |
ip6_savecontrol(in6p, mp, ip6, m) |
ip6_savecontrol(struct in6pcb *in6p, struct mbuf **mp, |
struct in6pcb *in6p; |
struct ip6_hdr *ip6, struct mbuf *m) |
struct mbuf **mp; |
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struct ip6_hdr *ip6; |
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struct mbuf *m; |
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{ |
{ |
#ifdef RFC2292 |
#ifdef RFC2292 |
#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
#define IS2292(x, y) ((in6p->in6p_flags & IN6P_RFC2292) ? (x) : (y)) |
Line 1339 ip6_notify_pmtu(struct in6pcb *in6p, con |
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Line 1337 ip6_notify_pmtu(struct in6pcb *in6p, con |
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* contains the result, or NULL on error. |
* contains the result, or NULL on error. |
*/ |
*/ |
static struct mbuf * |
static struct mbuf * |
ip6_pullexthdr(m, off, nxt) |
ip6_pullexthdr(struct mbuf *m, size_t off, int nxt) |
struct mbuf *m; |
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size_t off; |
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int nxt; |
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{ |
{ |
struct ip6_ext ip6e; |
struct ip6_ext ip6e; |
size_t elen; |
size_t elen; |
Line 1401 ip6_pullexthdr(m, off, nxt) |
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Line 1396 ip6_pullexthdr(m, off, nxt) |
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* we develop `neater' mechanism to process extension headers. |
* we develop `neater' mechanism to process extension headers. |
*/ |
*/ |
u_int8_t * |
u_int8_t * |
ip6_get_prevhdr(m, off) |
ip6_get_prevhdr(struct mbuf *m, int off) |
struct mbuf *m; |
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int off; |
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{ |
{ |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); |
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Line 1442 ip6_get_prevhdr(m, off) |
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Line 1435 ip6_get_prevhdr(m, off) |
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* get next header offset. m will be retained. |
* get next header offset. m will be retained. |
*/ |
*/ |
int |
int |
ip6_nexthdr(m, off, proto, nxtp) |
ip6_nexthdr(struct mbuf *m, int off, int proto, int *nxtp) |
struct mbuf *m; |
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int off; |
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int proto; |
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int *nxtp; |
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{ |
{ |
struct ip6_hdr ip6; |
struct ip6_hdr ip6; |
struct ip6_ext ip6e; |
struct ip6_ext ip6e; |
Line 1525 ip6_nexthdr(m, off, proto, nxtp) |
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Line 1514 ip6_nexthdr(m, off, proto, nxtp) |
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* get offset for the last header in the chain. m will be kept untainted. |
* get offset for the last header in the chain. m will be kept untainted. |
*/ |
*/ |
int |
int |
ip6_lasthdr(m, off, proto, nxtp) |
ip6_lasthdr(struct mbuf *m, int off, int proto, int *nxtp) |
struct mbuf *m; |
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int off; |
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int proto; |
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int *nxtp; |
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{ |
{ |
int newoff; |
int newoff; |
int nxt; |
int nxt; |
Line 1553 ip6_lasthdr(m, off, proto, nxtp) |
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Line 1538 ip6_lasthdr(m, off, proto, nxtp) |
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} |
} |
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struct m_tag * |
struct m_tag * |
ip6_addaux(m) |
ip6_addaux(struct mbuf *m) |
struct mbuf *m; |
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{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
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} |
} |
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struct m_tag * |
struct m_tag * |
ip6_findaux(m) |
ip6_findaux(struct mbuf *m) |
struct mbuf *m; |
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{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
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} |
} |
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void |
void |
ip6_delaux(m) |
ip6_delaux(struct mbuf *m) |
struct mbuf *m; |
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{ |
{ |
struct m_tag *mtag; |
struct m_tag *mtag; |
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m_tag_delete(m, mtag); |
m_tag_delete(m, mtag); |
} |
} |
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#ifdef GATEWAY |
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/* |
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* sysctl helper routine for net.inet.ip6.maxflows. Since |
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* we could reduce this value, call ip6flow_reap(); |
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*/ |
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static int |
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sysctl_net_inet6_ip6_maxflows(SYSCTLFN_ARGS) |
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{ |
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int s; |
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s = sysctl_lookup(SYSCTLFN_CALL(rnode)); |
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if (s || newp == NULL) |
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return (s); |
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s = splsoftnet(); |
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ip6flow_reap(0); |
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splx(s); |
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return (0); |
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} |
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static int |
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sysctl_net_inet6_ip6_hashsize(SYSCTLFN_ARGS) |
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{ |
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int error, tmp; |
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struct sysctlnode node; |
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|
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node = *rnode; |
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tmp = ip6_hashsize; |
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node.sysctl_data = &tmp; |
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error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
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if (error || newp == NULL) |
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return (error); |
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|
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if ((tmp & (tmp - 1)) == 0 && tmp != 0) { |
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/* |
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* Can only fail due to malloc() |
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*/ |
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if (ip6flow_invalidate_all(tmp)) |
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return ENOMEM; |
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} else { |
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/* |
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* EINVAL if not a power of 2 |
|
*/ |
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return EINVAL; |
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} |
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|
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return (0); |
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} |
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#endif /* GATEWAY */ |
|
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/* |
/* |
* System control for IP6 |
* System control for IP6 |
*/ |
*/ |
Line 1874 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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Line 1907 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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NULL, 0, &ip6_mcast_pmtu, 0, |
NULL, 0, &ip6_mcast_pmtu, 0, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_CREATE, CTL_EOL); |
CTL_CREATE, CTL_EOL); |
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#ifdef GATEWAY |
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
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CTLTYPE_INT, "maxflows", |
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SYSCTL_DESCR("Number of flows for fast forwarding (IPv6)"), |
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sysctl_net_inet6_ip6_maxflows, 0, &ip6_maxflows, 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, "hashsize", |
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SYSCTL_DESCR("Size of hash table for fast forwarding (IPv6)"), |
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sysctl_net_inet6_ip6_hashsize, 0, &ip6_hashsize, 0, |
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CTL_NET, PF_INET6, IPPROTO_IPV6, |
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CTL_CREATE, CTL_EOL); |
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#endif |
} |
} |