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-rw-r--r--net/ipv6/addrconf.c154
-rw-r--r--net/ipv6/af_inet6.c55
-rw-r--r--net/ipv6/datagram.c2
-rw-r--r--net/ipv6/esp6.c2
-rw-r--r--net/ipv6/exthdrs.c22
-rw-r--r--net/ipv6/icmp.c39
-rw-r--r--net/ipv6/ip6_flowlabel.c16
-rw-r--r--net/ipv6/ip6_output.c3
-rw-r--r--net/ipv6/ipv6_sockglue.c6
-rw-r--r--net/ipv6/mcast.c147
-rw-r--r--net/ipv6/netfilter/Kconfig52
-rw-r--r--net/ipv6/netfilter/ip6_tables.c2
-rw-r--r--net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c8
-rw-r--r--net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c12
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c50
-rw-r--r--net/ipv6/raw.c46
-rw-r--r--net/ipv6/reassembly.c41
-rw-r--r--net/ipv6/route.c21
-rw-r--r--net/ipv6/tcp_ipv6.c39
-rw-r--r--net/ipv6/udp.c29
-rw-r--r--net/ipv6/xfrm6_policy.c1
21 files changed, 476 insertions, 271 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index ddcf7754eec2..a60585fd85ad 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -137,6 +137,7 @@ static int addrconf_ifdown(struct net_device *dev, int how);
static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags);
static void addrconf_dad_timer(unsigned long data);
static void addrconf_dad_completed(struct inet6_ifaddr *ifp);
+static void addrconf_dad_run(struct inet6_dev *idev);
static void addrconf_rs_timer(unsigned long data);
static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa);
static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa);
@@ -379,8 +380,8 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
dev->type == ARPHRD_NONE ||
dev->type == ARPHRD_SIT) {
printk(KERN_INFO
- "Disabled Privacy Extensions on device %p(%s)\n",
- dev, dev->name);
+ "%s: Disabled Privacy Extensions\n",
+ dev->name);
ndev->cnf.use_tempaddr = -1;
} else {
in6_dev_hold(ndev);
@@ -388,6 +389,9 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
}
#endif
+ if (netif_carrier_ok(dev))
+ ndev->if_flags |= IF_READY;
+
write_lock_bh(&addrconf_lock);
dev->ip6_ptr = ndev;
write_unlock_bh(&addrconf_lock);
@@ -415,6 +419,7 @@ static struct inet6_dev * ipv6_find_idev(struct net_device *dev)
if ((idev = ipv6_add_dev(dev)) == NULL)
return NULL;
}
+
if (dev->flags&IFF_UP)
ipv6_mc_up(idev);
return idev;
@@ -634,8 +639,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
}
#endif
- for (ifap = &idev->addr_list; (ifa=*ifap) != NULL;
- ifap = &ifa->if_next) {
+ for (ifap = &idev->addr_list; (ifa=*ifap) != NULL;) {
if (ifa == ifp) {
*ifap = ifa->if_next;
__in6_ifa_put(ifp);
@@ -643,6 +647,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
if (!(ifp->flags & IFA_F_PERMANENT) || onlink > 0)
break;
deleted = 1;
+ continue;
} else if (ifp->flags & IFA_F_PERMANENT) {
if (ipv6_prefix_equal(&ifa->addr, &ifp->addr,
ifp->prefix_len)) {
@@ -666,6 +671,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
}
}
}
+ ifap = &ifa->if_next;
}
write_unlock_bh(&idev->lock);
@@ -903,11 +909,18 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
score.addr_type = __ipv6_addr_type(&ifa->addr);
- /* Rule 0: Candidate Source Address (section 4)
+ /* Rule 0:
+ * - Tentative Address (RFC2462 section 5.4)
+ * - A tentative address is not considered
+ * "assigned to an interface" in the traditional
+ * sense.
+ * - Candidate Source Address (section 4)
* - In any case, anycast addresses, multicast
* addresses, and the unspecified address MUST
* NOT be included in a candidate set.
*/
+ if (ifa->flags & IFA_F_TENTATIVE)
+ continue;
if (unlikely(score.addr_type == IPV6_ADDR_ANY ||
score.addr_type & IPV6_ADDR_MULTICAST)) {
LIMIT_NETDEBUG(KERN_DEBUG
@@ -985,6 +998,8 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
}
/* Rule 4: Prefer home address -- not implemented yet */
+ if (hiscore.rule < 4)
+ hiscore.rule++;
/* Rule 5: Prefer outgoing interface */
if (hiscore.rule < 5) {
@@ -1045,9 +1060,10 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
}
#endif
/* Rule 8: Use longest matching prefix */
- if (hiscore.rule < 8)
+ if (hiscore.rule < 8) {
hiscore.matchlen = ipv6_addr_diff(&ifa_result->addr, daddr);
- score.rule++;
+ hiscore.rule++;
+ }
score.matchlen = ipv6_addr_diff(&ifa->addr, daddr);
if (score.matchlen > hiscore.matchlen) {
score.rule = 8;
@@ -1212,10 +1228,8 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
/* Gets referenced address, destroys ifaddr */
-void addrconf_dad_failure(struct inet6_ifaddr *ifp)
+void addrconf_dad_stop(struct inet6_ifaddr *ifp)
{
- if (net_ratelimit())
- printk(KERN_INFO "%s: duplicate address detected!\n", ifp->idev->dev->name);
if (ifp->flags&IFA_F_PERMANENT) {
spin_lock_bh(&ifp->lock);
addrconf_del_timer(ifp);
@@ -1241,6 +1255,12 @@ void addrconf_dad_failure(struct inet6_ifaddr *ifp)
ipv6_del_addr(ifp);
}
+void addrconf_dad_failure(struct inet6_ifaddr *ifp)
+{
+ if (net_ratelimit())
+ printk(KERN_INFO "%s: duplicate address detected!\n", ifp->idev->dev->name);
+ addrconf_dad_stop(ifp);
+}
/* Join to solicited addr multicast group. */
@@ -1593,9 +1613,17 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
not good.
*/
if (valid_lft >= 0x7FFFFFFF/HZ)
- rt_expires = 0;
+ rt_expires = 0x7FFFFFFF - (0x7FFFFFFF % HZ);
else
- rt_expires = jiffies + valid_lft * HZ;
+ rt_expires = valid_lft * HZ;
+
+ /*
+ * We convert this (in jiffies) to clock_t later.
+ * Avoid arithmetic overflow there as well.
+ * Overflow can happen only if HZ < USER_HZ.
+ */
+ if (HZ < USER_HZ && rt_expires > 0x7FFFFFFF / USER_HZ)
+ rt_expires = 0x7FFFFFFF / USER_HZ;
if (pinfo->onlink) {
struct rt6_info *rt;
@@ -1607,12 +1635,12 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
ip6_del_rt(rt, NULL, NULL, NULL);
rt = NULL;
} else {
- rt->rt6i_expires = rt_expires;
+ rt->rt6i_expires = jiffies + rt_expires;
}
}
} else if (valid_lft) {
addrconf_prefix_route(&pinfo->prefix, pinfo->prefix_len,
- dev, rt_expires, RTF_ADDRCONF|RTF_EXPIRES|RTF_PREFIX_RT);
+ dev, jiffies_to_clock_t(rt_expires), RTF_ADDRCONF|RTF_EXPIRES|RTF_PREFIX_RT);
}
if (rt)
dst_release(&rt->u.dst);
@@ -2122,9 +2150,42 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
{
struct net_device *dev = (struct net_device *) data;
struct inet6_dev *idev = __in6_dev_get(dev);
+ int run_pending = 0;
switch(event) {
case NETDEV_UP:
+ case NETDEV_CHANGE:
+ if (event == NETDEV_UP) {
+ if (!netif_carrier_ok(dev)) {
+ /* device is not ready yet. */
+ printk(KERN_INFO
+ "ADDRCONF(NETDEV_UP): %s: "
+ "link is not ready\n",
+ dev->name);
+ break;
+ }
+ } else {
+ if (!netif_carrier_ok(dev)) {
+ /* device is still not ready. */
+ break;
+ }
+
+ if (idev) {
+ if (idev->if_flags & IF_READY) {
+ /* device is already configured. */
+ break;
+ }
+ idev->if_flags |= IF_READY;
+ }
+
+ printk(KERN_INFO
+ "ADDRCONF(NETDEV_CHANGE): %s: "
+ "link becomes ready\n",
+ dev->name);
+
+ run_pending = 1;
+ }
+
switch(dev->type) {
case ARPHRD_SIT:
addrconf_sit_config(dev);
@@ -2141,6 +2202,9 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
break;
};
if (idev) {
+ if (run_pending)
+ addrconf_dad_run(idev);
+
/* If the MTU changed during the interface down, when the
interface up, the changed MTU must be reflected in the
idev as well as routers.
@@ -2175,8 +2239,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
*/
addrconf_ifdown(dev, event != NETDEV_DOWN);
break;
- case NETDEV_CHANGE:
- break;
+
case NETDEV_CHANGENAME:
#ifdef CONFIG_SYSCTL
if (idev) {
@@ -2257,7 +2320,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* Step 3: clear flags for stateless addrconf */
if (how != 1)
- idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD);
+ idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
/* Step 4: clear address list */
#ifdef CONFIG_IPV6_PRIVACY
@@ -2366,11 +2429,20 @@ out:
/*
* Duplicate Address Detection
*/
+static void addrconf_dad_kick(struct inet6_ifaddr *ifp)
+{
+ unsigned long rand_num;
+ struct inet6_dev *idev = ifp->idev;
+
+ rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1);
+ ifp->probes = idev->cnf.dad_transmits;
+ addrconf_mod_timer(ifp, AC_DAD, rand_num);
+}
+
static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
{
struct inet6_dev *idev = ifp->idev;
struct net_device *dev = idev->dev;
- unsigned long rand_num;
addrconf_join_solict(dev, &ifp->addr);
@@ -2379,7 +2451,6 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
flags);
net_srandom(ifp->addr.s6_addr32[3]);
- rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1);
read_lock_bh(&idev->lock);
if (ifp->dead)
@@ -2396,9 +2467,19 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
return;
}
- ifp->probes = idev->cnf.dad_transmits;
- addrconf_mod_timer(ifp, AC_DAD, rand_num);
-
+ if (!(idev->if_flags & IF_READY)) {
+ spin_unlock_bh(&ifp->lock);
+ read_unlock_bh(&idev->lock);
+ /*
+ * If the defice is not ready:
+ * - keep it tentative if it is a permanent address.
+ * - otherwise, kill it.
+ */
+ in6_ifa_hold(ifp);
+ addrconf_dad_stop(ifp);
+ return;
+ }
+ addrconf_dad_kick(ifp);
spin_unlock_bh(&ifp->lock);
out:
read_unlock_bh(&idev->lock);
@@ -2481,6 +2562,22 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
}
}
+static void addrconf_dad_run(struct inet6_dev *idev) {
+ struct inet6_ifaddr *ifp;
+
+ read_lock_bh(&idev->lock);
+ for (ifp = idev->addr_list; ifp; ifp = ifp->if_next) {
+ spin_lock_bh(&ifp->lock);
+ if (!(ifp->flags & IFA_F_TENTATIVE)) {
+ spin_unlock_bh(&ifp->lock);
+ continue;
+ }
+ spin_unlock_bh(&ifp->lock);
+ addrconf_dad_kick(ifp);
+ }
+ read_unlock_bh(&idev->lock);
+}
+
#ifdef CONFIG_PROC_FS
struct if6_iter_state {
int bucket;
@@ -2626,7 +2723,7 @@ static void addrconf_verify(unsigned long foo)
for (i=0; i < IN6_ADDR_HSIZE; i++) {
restart:
- write_lock(&addrconf_hash_lock);
+ read_lock(&addrconf_hash_lock);
for (ifp=inet6_addr_lst[i]; ifp; ifp=ifp->lst_next) {
unsigned long age;
#ifdef CONFIG_IPV6_PRIVACY
@@ -2648,7 +2745,7 @@ restart:
if (age >= ifp->valid_lft) {
spin_unlock(&ifp->lock);
in6_ifa_hold(ifp);
- write_unlock(&addrconf_hash_lock);
+ read_unlock(&addrconf_hash_lock);
ipv6_del_addr(ifp);
goto restart;
} else if (age >= ifp->prefered_lft) {
@@ -2667,7 +2764,7 @@ restart:
if (deprecate) {
in6_ifa_hold(ifp);
- write_unlock(&addrconf_hash_lock);
+ read_unlock(&addrconf_hash_lock);
ipv6_ifa_notify(0, ifp);
in6_ifa_put(ifp);
@@ -2685,7 +2782,10 @@ restart:
in6_ifa_hold(ifp);
in6_ifa_hold(ifpub);
spin_unlock(&ifp->lock);
- write_unlock(&addrconf_hash_lock);
+ read_unlock(&addrconf_hash_lock);
+ spin_lock(&ifpub->lock);
+ ifpub->regen_count = 0;
+ spin_unlock(&ifpub->lock);
ipv6_create_tempaddr(ifpub, ifp);
in6_ifa_put(ifpub);
in6_ifa_put(ifp);
@@ -2702,7 +2802,7 @@ restart:
spin_unlock(&ifp->lock);
}
}
- write_unlock(&addrconf_hash_lock);
+ read_unlock(&addrconf_hash_lock);
}
addr_chk_timer.expires = time_before(next, jiffies + HZ) ? jiffies + HZ : next;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 4f8795af2edb..d9546380fa04 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -92,10 +92,13 @@ static int inet6_create(struct socket *sock, int protocol)
struct proto *answer_prot;
unsigned char answer_flags;
char answer_no_check;
- int rc;
+ int try_loading_module = 0;
+ int err;
/* Look for the requested type/protocol pair. */
answer = NULL;
+lookup_protocol:
+ err = -ESOCKTNOSUPPORT;
rcu_read_lock();
list_for_each_rcu(p, &inetsw6[sock->type]) {
answer = list_entry(p, struct inet_protosw, list);
@@ -113,21 +116,37 @@ static int inet6_create(struct socket *sock, int protocol)
if (IPPROTO_IP == answer->protocol)
break;
}
+ err = -EPROTONOSUPPORT;
answer = NULL;
}
- rc = -ESOCKTNOSUPPORT;
- if (!answer)
- goto out_rcu_unlock;
- rc = -EPERM;
+ if (!answer) {
+ if (try_loading_module < 2) {
+ rcu_read_unlock();
+ /*
+ * Be more specific, e.g. net-pf-10-proto-132-type-1
+ * (net-pf-PF_INET6-proto-IPPROTO_SCTP-type-SOCK_STREAM)
+ */
+ if (++try_loading_module == 1)
+ request_module("net-pf-%d-proto-%d-type-%d",
+ PF_INET6, protocol, sock->type);
+ /*
+ * Fall back to generic, e.g. net-pf-10-proto-132
+ * (net-pf-PF_INET6-proto-IPPROTO_SCTP)
+ */
+ else
+ request_module("net-pf-%d-proto-%d",
+ PF_INET6, protocol);
+ goto lookup_protocol;
+ } else
+ goto out_rcu_unlock;
+ }
+
+ err = -EPERM;
if (answer->capability > 0 && !capable(answer->capability))
goto out_rcu_unlock;
- rc = -EPROTONOSUPPORT;
- if (!protocol)
- goto out_rcu_unlock;
sock->ops = answer->ops;
-
answer_prot = answer->prot;
answer_no_check = answer->no_check;
answer_flags = answer->flags;
@@ -135,14 +154,14 @@ static int inet6_create(struct socket *sock, int protocol)
BUG_TRAP(answer_prot->slab != NULL);
- rc = -ENOBUFS;
+ err = -ENOBUFS;
sk = sk_alloc(PF_INET6, GFP_KERNEL, answer_prot, 1);
if (sk == NULL)
goto out;
sock_init_data(sock, sk);
- rc = 0;
+ err = 0;
sk->sk_no_check = answer_no_check;
if (INET_PROTOSW_REUSE & answer_flags)
sk->sk_reuse = 1;
@@ -202,14 +221,14 @@ static int inet6_create(struct socket *sock, int protocol)
sk->sk_prot->hash(sk);
}
if (sk->sk_prot->init) {
- rc = sk->sk_prot->init(sk);
- if (rc) {
+ err = sk->sk_prot->init(sk);
+ if (err) {
sk_common_release(sk);
goto out;
}
}
out:
- return rc;
+ return err;
out_rcu_unlock:
rcu_read_unlock();
goto out;
@@ -699,12 +718,14 @@ static int __init inet6_init(void)
/* Register the family here so that the init calls below will
* be able to create sockets. (?? is this dangerous ??)
*/
- (void) sock_register(&inet6_family_ops);
+ err = sock_register(&inet6_family_ops);
+ if (err)
+ goto out_unregister_raw_proto;
/* Initialise ipv6 mibs */
err = init_ipv6_mibs();
if (err)
- goto out_unregister_raw_proto;
+ goto out_unregister_sock;
/*
* ipngwg API draft makes clear that the correct semantics
@@ -796,6 +817,8 @@ icmp_fail:
ipv6_sysctl_unregister();
#endif
cleanup_ipv6_mibs();
+out_unregister_sock:
+ sock_unregister(PF_INET6);
out_unregister_raw_proto:
proto_unregister(&rawv6_prot);
out_unregister_udp_proto:
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index cc518405b3e1..c4a3a993acb7 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -437,7 +437,7 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
break;
case IPPROTO_AH:
nexthdr = ptr[0];
- len = (ptr[1] + 1) << 2;
+ len = (ptr[1] + 2) << 2;
break;
default:
nexthdr = ptr[0];
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 40d9a1935ab5..8bfbe9970793 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -248,7 +248,7 @@ static u32 esp6_get_max_size(struct xfrm_state *x, int mtu)
if (esp->conf.padlen)
mtu = ALIGN(mtu, esp->conf.padlen);
- return mtu + x->props.header_len + esp->auth.icv_full_len;
+ return mtu + x->props.header_len + esp->auth.icv_trunc_len;
}
static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 922549581abc..be6faf311387 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -628,6 +628,7 @@ ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
if (!tot_len)
return NULL;
+ tot_len += sizeof(*opt2);
opt2 = sock_kmalloc(sk, tot_len, GFP_ATOMIC);
if (!opt2)
return ERR_PTR(-ENOBUFS);
@@ -668,7 +669,26 @@ ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
return opt2;
out:
- sock_kfree_s(sk, p, tot_len);
+ sock_kfree_s(sk, opt2, opt2->tot_len);
return ERR_PTR(err);
}
+struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
+ struct ipv6_txoptions *opt)
+{
+ /*
+ * ignore the dest before srcrt unless srcrt is being included.
+ * --yoshfuji
+ */
+ if (opt && opt->dst0opt && !opt->srcrt) {
+ if (opt_space != opt) {
+ memcpy(opt_space, opt, sizeof(*opt_space));
+ opt = opt_space;
+ }
+ opt->opt_nflen -= ipv6_optlen(opt->dst0opt);
+ opt->dst0opt = NULL;
+ }
+
+ return opt;
+}
+
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 23e540365a14..6ec6a2b549bb 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -328,8 +328,10 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
iif = skb->dev->ifindex;
/*
- * Must not send if we know that source is Anycast also.
- * for now we don't know that.
+ * Must not send error if the source does not uniquely
+ * identify a single node (RFC2463 Section 2.4).
+ * We check unspecified / multicast addresses here,
+ * and anycast addresses will be checked later.
*/
if ((addr_type == IPV6_ADDR_ANY) || (addr_type & IPV6_ADDR_MULTICAST)) {
LIMIT_NETDEBUG(KERN_DEBUG "icmpv6_send: addr_any/mcast source\n");
@@ -373,6 +375,16 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
err = ip6_dst_lookup(sk, &dst, &fl);
if (err)
goto out;
+
+ /*
+ * We won't send icmp if the destination is known
+ * anycast.
+ */
+ if (((struct rt6_info *)dst)->rt6i_flags & RTF_ANYCAST) {
+ LIMIT_NETDEBUG(KERN_DEBUG "icmpv6_send: acast source\n");
+ goto out_dst_release;
+ }
+
if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0)
goto out;
@@ -585,17 +597,16 @@ static int icmpv6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
daddr = &skb->nh.ipv6h->daddr;
/* Perform checksum. */
- if (skb->ip_summed == CHECKSUM_HW) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- if (csum_ipv6_magic(saddr, daddr, skb->len, IPPROTO_ICMPV6,
- skb->csum)) {
- LIMIT_NETDEBUG(KERN_DEBUG "ICMPv6 hw checksum failed\n");
- skb->ip_summed = CHECKSUM_NONE;
- }
- }
- if (skb->ip_summed == CHECKSUM_NONE) {
- if (csum_ipv6_magic(saddr, daddr, skb->len, IPPROTO_ICMPV6,
- skb_checksum(skb, 0, skb->len, 0))) {
+ switch (skb->ip_summed) {
+ case CHECKSUM_HW:
+ if (!csum_ipv6_magic(saddr, daddr, skb->len, IPPROTO_ICMPV6,
+ skb->csum))
+ break;
+ /* fall through */
+ case CHECKSUM_NONE:
+ skb->csum = ~csum_ipv6_magic(saddr, daddr, skb->len,
+ IPPROTO_ICMPV6, 0);
+ if (__skb_checksum_complete(skb)) {
LIMIT_NETDEBUG(KERN_DEBUG "ICMPv6 checksum failed [%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x > %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x]\n",
NIP6(*saddr), NIP6(*daddr));
goto discard_it;
@@ -752,7 +763,7 @@ void icmpv6_cleanup(void)
inet6_del_protocol(&icmpv6_protocol, IPPROTO_ICMPV6);
}
-static struct icmp6_err {
+static const struct icmp6_err {
int err;
int fatal;
} tab_unreach[] = {
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index bbbe80cdaf72..1cf02765fb5c 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -225,20 +225,16 @@ struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions * opt_space,
struct ip6_flowlabel * fl,
struct ipv6_txoptions * fopt)
{
- struct ipv6_txoptions * fl_opt = fl ? fl->opt : NULL;
-
- if (fopt == NULL || fopt->opt_flen == 0) {
- if (!fl_opt || !fl_opt->dst0opt || fl_opt->srcrt)
- return fl_opt;
- }
-
+ struct ipv6_txoptions * fl_opt = fl->opt;
+
+ if (fopt == NULL || fopt->opt_flen == 0)
+ return fl_opt;
+
if (fl_opt != NULL) {
opt_space->hopopt = fl_opt->hopopt;
- opt_space->dst0opt = fl_opt->srcrt ? fl_opt->dst0opt : NULL;
+ opt_space->dst0opt = fl_opt->dst0opt;
opt_space->srcrt = fl_opt->srcrt;
opt_space->opt_nflen = fl_opt->opt_nflen;
- if (fl_opt->dst0opt && !fl_opt->srcrt)
- opt_space->opt_nflen -= ipv6_optlen(fl_opt->dst0opt);
} else {
if (fopt->opt_nflen == 0)
return fopt;
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index c1fa693511a1..8523c76ebf76 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -774,7 +774,8 @@ out_err_release:
*dst = NULL;
return err;
}
-inline int ip6_ufo_append_data(struct sock *sk,
+
+static inline int ip6_ufo_append_data(struct sock *sk,
int getfrag(void *from, char *to, int offset, int len,
int odd, struct sk_buff *skb),
void *from, int length, int hh_len, int fragheaderlen,
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 003fd99ff597..3620718defe6 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -287,7 +287,7 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname,
{
struct ipv6_txoptions *opt;
if (optlen == 0)
- optval = 0;
+ optval = NULL;
/* hop-by-hop / destination options are privileged option */
retv = -EPERM;
@@ -628,8 +628,8 @@ e_inval:
return -EINVAL;
}
-int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_opt_hdr *hdr,
- char __user *optval, int len)
+static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_opt_hdr *hdr,
+ char __user *optval, int len)
{
if (!hdr)
return 0;
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index f15e04ad026e..f829a4ad3ccc 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -170,7 +170,7 @@ static int ip6_mc_leave_src(struct sock *sk, struct ipv6_mc_socklist *iml,
#define MLDV2_QQIC(value) MLDV2_EXP(0x80, 4, 3, value)
#define MLDV2_MRC(value) MLDV2_EXP(0x8000, 12, 3, value)
-#define IPV6_MLD_MAX_MSF 10
+#define IPV6_MLD_MAX_MSF 64
int sysctl_mld_max_msf = IPV6_MLD_MAX_MSF;
@@ -224,6 +224,7 @@ int ipv6_sock_mc_join(struct sock *sk, int ifindex, struct in6_addr *addr)
mc_lst->ifindex = dev->ifindex;
mc_lst->sfmode = MCAST_EXCLUDE;
+ mc_lst->sflock = RW_LOCK_UNLOCKED;
mc_lst->sflist = NULL;
/*
@@ -360,6 +361,7 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
struct ip6_sf_socklist *psl;
int i, j, rv;
int leavegroup = 0;
+ int pmclocked = 0;
int err;
if (pgsr->gsr_group.ss_family != AF_INET6 ||
@@ -403,6 +405,9 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
pmc->sfmode = omode;
}
+ write_lock_bh(&pmc->sflock);
+ pmclocked = 1;
+
psl = pmc->sflist;
if (!add) {
if (!psl)
@@ -475,6 +480,8 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
/* update the interface list */
ip6_mc_add_src(idev, group, omode, 1, source, 1);
done:
+ if (pmclocked)
+ write_unlock_bh(&pmc->sflock);
read_unlock_bh(&ipv6_sk_mc_lock);
read_unlock_bh(&idev->lock);
in6_dev_put(idev);
@@ -510,6 +517,8 @@ int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf)
dev = idev->dev;
err = 0;
+ read_lock_bh(&ipv6_sk_mc_lock);
+
if (gsf->gf_fmode == MCAST_INCLUDE && gsf->gf_numsrc == 0) {
leavegroup = 1;
goto done;
@@ -549,6 +558,8 @@ int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf)
newpsl = NULL;
(void) ip6_mc_add_src(idev, group, gsf->gf_fmode, 0, NULL, 0);
}
+
+ write_lock_bh(&pmc->sflock);
psl = pmc->sflist;
if (psl) {
(void) ip6_mc_del_src(idev, group, pmc->sfmode,
@@ -558,8 +569,10 @@ int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf)
(void) ip6_mc_del_src(idev, group, pmc->sfmode, 0, NULL, 0);
pmc->sflist = newpsl;
pmc->sfmode = gsf->gf_fmode;
+ write_unlock_bh(&pmc->sflock);
err = 0;
done:
+ read_unlock_bh(&ipv6_sk_mc_lock);
read_unlock_bh(&idev->lock);
in6_dev_put(idev);
dev_put(dev);
@@ -592,6 +605,11 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
dev = idev->dev;
err = -EADDRNOTAVAIL;
+ /*
+ * changes to the ipv6_mc_list require the socket lock and
+ * a read lock on ip6_sk_mc_lock. We have the socket lock,
+ * so reading the list is safe.
+ */
for (pmc=inet6->ipv6_mc_list; pmc; pmc=pmc->next) {
if (pmc->ifindex != gsf->gf_interface)
@@ -614,6 +632,10 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
copy_to_user(optval, gsf, GROUP_FILTER_SIZE(0))) {
return -EFAULT;
}
+ /* changes to psl require the socket lock, a read lock on
+ * on ipv6_sk_mc_lock and a write lock on pmc->sflock. We
+ * have the socket lock, so reading here is safe.
+ */
for (i=0; i<copycount; i++) {
struct sockaddr_in6 *psin6;
struct sockaddr_storage ss;
@@ -650,6 +672,7 @@ int inet6_mc_check(struct sock *sk, struct in6_addr *mc_addr,
read_unlock(&ipv6_sk_mc_lock);
return 1;
}
+ read_lock(&mc->sflock);
psl = mc->sflist;
if (!psl) {
rv = mc->sfmode == MCAST_EXCLUDE;
@@ -665,6 +688,7 @@ int inet6_mc_check(struct sock *sk, struct in6_addr *mc_addr,
if (mc->sfmode == MCAST_EXCLUDE && i < psl->sl_count)
rv = 0;
}
+ read_unlock(&mc->sflock);
read_unlock(&ipv6_sk_mc_lock);
return rv;
@@ -1068,23 +1092,64 @@ static void igmp6_group_queried(struct ifmcaddr6 *ma, unsigned long resptime)
ma->mca_flags |= MAF_TIMER_RUNNING;
}
-static void mld_marksources(struct ifmcaddr6 *pmc, int nsrcs,
+/* mark EXCLUDE-mode sources */
+static int mld_xmarksources(struct ifmcaddr6 *pmc, int nsrcs,
+ struct in6_addr *srcs)
+{
+ struct ip6_sf_list *psf;
+ int i, scount;
+
+ scount = 0;
+ for (psf=pmc->mca_sources; psf; psf=psf->sf_next) {
+ if (scount == nsrcs)
+ break;
+ for (i=0; i<nsrcs; i++) {
+ /* skip inactive filters */
+ if (pmc->mca_sfcount[MCAST_INCLUDE] ||
+ pmc->mca_sfcount[MCAST_EXCLUDE] !=
+ psf->sf_count[MCAST_EXCLUDE])
+ continue;
+ if (ipv6_addr_equal(&srcs[i], &psf->sf_addr)) {
+ scount++;
+ break;
+ }
+ }
+ }
+ pmc->mca_flags &= ~MAF_GSQUERY;
+ if (scount == nsrcs) /* all sources excluded */
+ return 0;
+ return 1;
+}
+
+static int mld_marksources(struct ifmcaddr6 *pmc, int nsrcs,
struct in6_addr *srcs)
{
struct ip6_sf_list *psf;
int i, scount;
+ if (pmc->mca_sfmode == MCAST_EXCLUDE)
+ return mld_xmarksources(pmc, nsrcs, srcs);
+
+ /* mark INCLUDE-mode sources */
+
scount = 0;
for (psf=pmc->mca_sources; psf; psf=psf->sf_next) {
if (scount == nsrcs)
break;
- for (i=0; i<nsrcs; i++)
+ for (i=0; i<nsrcs; i++) {
if (ipv6_addr_equal(&srcs[i], &psf->sf_addr)) {
psf->sf_gsresp = 1;
scount++;
break;
}
+ }
+ }
+ if (!scount) {
+ pmc->mca_flags &= ~MAF_GSQUERY;
+ return 0;
}
+ pmc->mca_flags |= MAF_GSQUERY;
+ return 1;
}
int igmp6_event_query(struct sk_buff *skb)
@@ -1167,7 +1232,7 @@ int igmp6_event_query(struct sk_buff *skb)
/* mark sources to include, if group & source-specific */
if (mlh2->nsrcs != 0) {
if (!pskb_may_pull(skb, srcs_offset +
- mlh2->nsrcs * sizeof(struct in6_addr))) {
+ ntohs(mlh2->nsrcs) * sizeof(struct in6_addr))) {
in6_dev_put(idev);
return -EINVAL;
}
@@ -1203,10 +1268,9 @@ int igmp6_event_query(struct sk_buff *skb)
else
ma->mca_flags &= ~MAF_GSQUERY;
}
- if (ma->mca_flags & MAF_GSQUERY)
- mld_marksources(ma, ntohs(mlh2->nsrcs),
- mlh2->srcs);
- igmp6_group_queried(ma, max_delay);
+ if (!(ma->mca_flags & MAF_GSQUERY) ||
+ mld_marksources(ma, ntohs(mlh2->nsrcs), mlh2->srcs))
+ igmp6_group_queried(ma, max_delay);
spin_unlock_bh(&ma->mca_lock);
if (group_type != IPV6_ADDR_ANY)
break;
@@ -1231,6 +1295,11 @@ int igmp6_event_report(struct sk_buff *skb)
if (skb->pkt_type == PACKET_LOOPBACK)
return 0;
+ /* send our report if the MC router may not have heard this report */
+ if (skb->pkt_type != PACKET_MULTICAST &&
+ skb->pkt_type != PACKET_BROADCAST)
+ return 0;
+
if (!pskb_may_pull(skb, sizeof(struct in6_addr)))
return -EINVAL;
@@ -1276,7 +1345,18 @@ static int is_in(struct ifmcaddr6 *pmc, struct ip6_sf_list *psf, int type,
case MLD2_MODE_IS_EXCLUDE:
if (gdeleted || sdeleted)
return 0;
- return !((pmc->mca_flags & MAF_GSQUERY) && !psf->sf_gsresp);
+ if (!((pmc->mca_flags & MAF_GSQUERY) && !psf->sf_gsresp)) {
+ if (pmc->mca_sfmode == MCAST_INCLUDE)
+ return 1;
+ /* don't include if this source is excluded
+ * in all filters
+ */
+ if (psf->sf_count[MCAST_INCLUDE])
+ return 0;
+ return pmc->mca_sfcount[MCAST_EXCLUDE] ==
+ psf->sf_count[MCAST_EXCLUDE];
+ }
+ return 0;
case MLD2_CHANGE_TO_INCLUDE:
if (gdeleted || sdeleted)
return 0;
@@ -1445,7 +1525,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
struct mld2_report *pmr;
struct mld2_grec *pgr = NULL;
struct ip6_sf_list *psf, *psf_next, *psf_prev, **psf_list;
- int scount, first, isquery, truncate;
+ int scount, stotal, first, isquery, truncate;
if (pmc->mca_flags & MAF_NOREPORT)
return skb;
@@ -1455,25 +1535,13 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
truncate = type == MLD2_MODE_IS_EXCLUDE ||
type == MLD2_CHANGE_TO_EXCLUDE;
+ stotal = scount = 0;
+
psf_list = sdeleted ? &pmc->mca_tomb : &pmc->mca_sources;
- if (!*psf_list) {
- if (type == MLD2_ALLOW_NEW_SOURCES ||
- type == MLD2_BLOCK_OLD_SOURCES)
- return skb;
- if (pmc->mca_crcount || isquery) {
- /* make sure we have room for group header and at
- * least one source.
- */
- if (skb && AVAILABLE(skb) < sizeof(struct mld2_grec)+
- sizeof(struct in6_addr)) {
- mld_sendpack(skb);
- skb = NULL; /* add_grhead will get a new one */
- }
- skb = add_grhead(skb, pmc, type, &pgr);
- }
- return skb;
- }
+ if (!*psf_list)
+ goto empty_source;
+
pmr = skb ? (struct mld2_report *)skb->h.raw : NULL;
/* EX and TO_EX get a fresh packet, if needed */
@@ -1486,7 +1554,6 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
}
}
first = 1;
- scount = 0;
psf_prev = NULL;
for (psf=*psf_list; psf; psf=psf_next) {
struct in6_addr *psrc;
@@ -1520,7 +1587,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
}
psrc = (struct in6_addr *)skb_put(skb, sizeof(*psrc));
*psrc = psf->sf_addr;
- scount++;
+ scount++; stotal++;
if ((type == MLD2_ALLOW_NEW_SOURCES ||
type == MLD2_BLOCK_OLD_SOURCES) && psf->sf_crcount) {
psf->sf_crcount--;
@@ -1535,6 +1602,21 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
}
psf_prev = psf;
}
+
+empty_source:
+ if (!stotal) {
+ if (type == MLD2_ALLOW_NEW_SOURCES ||
+ type == MLD2_BLOCK_OLD_SOURCES)
+ return skb;
+ if (pmc->mca_crcount || isquery) {
+ /* make sure we have room for group header */
+ if (skb && AVAILABLE(skb) < sizeof(struct mld2_grec)) {
+ mld_sendpack(skb);
+ skb = NULL; /* add_grhead will get a new one */
+ }
+ skb = add_grhead(skb, pmc, type, &pgr);
+ }
+ }
if (pgr)
pgr->grec_nsrcs = htons(scount);
@@ -1616,11 +1698,11 @@ static void mld_send_cr(struct inet6_dev *idev)
skb = add_grec(skb, pmc, dtype, 1, 1);
}
if (pmc->mca_crcount) {
- pmc->mca_crcount--;
if (pmc->mca_sfmode == MCAST_EXCLUDE) {
type = MLD2_CHANGE_TO_INCLUDE;
skb = add_grec(skb, pmc, type, 1, 0);
}
+ pmc->mca_crcount--;
if (pmc->mca_crcount == 0) {
mld_clear_zeros(&pmc->mca_tomb);
mld_clear_zeros(&pmc->mca_sources);
@@ -1654,12 +1736,12 @@ static void mld_send_cr(struct inet6_dev *idev)
/* filter mode changes */
if (pmc->mca_crcount) {
- pmc->mca_crcount--;
if (pmc->mca_sfmode == MCAST_EXCLUDE)
type = MLD2_CHANGE_TO_EXCLUDE;
else
type = MLD2_CHANGE_TO_INCLUDE;
skb = add_grec(skb, pmc, type, 0, 0);
+ pmc->mca_crcount--;
}
spin_unlock_bh(&pmc->mca_lock);
}
@@ -2018,6 +2100,9 @@ static int ip6_mc_leave_src(struct sock *sk, struct ipv6_mc_socklist *iml,
{
int err;
+ /* callers have the socket lock and a write lock on ipv6_sk_mc_lock,
+ * so no other readers or writers of iml or its sflist
+ */
if (iml->sflist == 0) {
/* any-source empty exclude case */
return ip6_mc_del_src(idev, &iml->addr, iml->sfmode, 0, NULL, 0);
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 971ba60bf6e9..04912f9b35c3 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -5,10 +5,20 @@
menu "IPv6: Netfilter Configuration (EXPERIMENTAL)"
depends on INET && IPV6 && NETFILTER && EXPERIMENTAL
-#tristate 'Connection tracking (required for masq/NAT)' CONFIG_IP6_NF_CONNTRACK
-#if [ "$CONFIG_IP6_NF_CONNTRACK" != "n" ]; then
-# dep_tristate ' FTP protocol support' CONFIG_IP6_NF_FTP $CONFIG_IP6_NF_CONNTRACK
-#fi
+config NF_CONNTRACK_IPV6
+ tristate "IPv6 support for new connection tracking (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && NF_CONNTRACK
+ ---help---
+ Connection tracking keeps a record of what packets have passed
+ through your machine, in order to figure out how they are related
+ into connections.
+
+ This is IPv6 support on Layer 3 independent connection tracking.
+ Layer 3 independent connection tracking is experimental scheme
+ which generalize ip_conntrack to support other layer 3 protocols.
+
+ To compile it as a module, choose M here. If unsure, say N.
+
config IP6_NF_QUEUE
tristate "IP6 Userspace queueing via NETLINK (OBSOLETE)"
---help---
@@ -114,7 +124,6 @@ config IP6_NF_MATCH_OWNER
To compile it as a module, choose M here. If unsure, say N.
-# dep_tristate ' MAC address match support' CONFIG_IP6_NF_MATCH_MAC $CONFIG_IP6_NF_IPTABLES
config IP6_NF_MATCH_MARK
tristate "netfilter MARK match support"
depends on IP6_NF_IPTABLES
@@ -170,15 +179,6 @@ config IP6_NF_MATCH_PHYSDEV
To compile it as a module, choose M here. If unsure, say N.
-# dep_tristate ' Multiple port match support' CONFIG_IP6_NF_MATCH_MULTIPORT $CONFIG_IP6_NF_IPTABLES
-# dep_tristate ' TOS match support' CONFIG_IP6_NF_MATCH_TOS $CONFIG_IP6_NF_IPTABLES
-# if [ "$CONFIG_IP6_NF_CONNTRACK" != "n" ]; then
-# dep_tristate ' Connection state match support' CONFIG_IP6_NF_MATCH_STATE $CONFIG_IP6_NF_CONNTRACK $CONFIG_IP6_NF_IPTABLES
-# fi
-# if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-# dep_tristate ' Unclean match support (EXPERIMENTAL)' CONFIG_IP6_NF_MATCH_UNCLEAN $CONFIG_IP6_NF_IPTABLES
-# dep_tristate ' Owner match support (EXPERIMENTAL)' CONFIG_IP6_NF_MATCH_OWNER $CONFIG_IP6_NF_IPTABLES
-# fi
# The targets
config IP6_NF_FILTER
tristate "Packet filtering"
@@ -211,7 +211,7 @@ config IP6_NF_TARGET_REJECT
config IP6_NF_TARGET_NFQUEUE
tristate "NFQUEUE Target Support"
- depends on IP_NF_IPTABLES
+ depends on IP6_NF_IPTABLES
help
This Target replaced the old obsolete QUEUE target.
@@ -220,12 +220,6 @@ config IP6_NF_TARGET_NFQUEUE
To compile it as a module, choose M here. If unsure, say N.
-# if [ "$CONFIG_IP6_NF_FILTER" != "n" ]; then
-# dep_tristate ' REJECT target support' CONFIG_IP6_NF_TARGET_REJECT $CONFIG_IP6_NF_FILTER
-# if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-# dep_tristate ' MIRROR target support (EXPERIMENTAL)' CONFIG_IP6_NF_TARGET_MIRROR $CONFIG_IP6_NF_FILTER
-# fi
-# fi
config IP6_NF_MANGLE
tristate "Packet mangling"
depends on IP6_NF_IPTABLES
@@ -236,7 +230,6 @@ config IP6_NF_MANGLE
To compile it as a module, choose M here. If unsure, say N.
-# dep_tristate ' TOS target support' CONFIG_IP6_NF_TARGET_TOS $CONFIG_IP_NF_MANGLE
config IP6_NF_TARGET_MARK
tristate "MARK target support"
depends on IP6_NF_MANGLE
@@ -266,7 +259,6 @@ config IP6_NF_TARGET_HL
To compile it as a module, choose M here. If unsure, say N.
-#dep_tristate ' LOG target support' CONFIG_IP6_NF_TARGET_LOG $CONFIG_IP6_NF_IPTABLES
config IP6_NF_RAW
tristate 'raw table support (required for TRACE)'
depends on IP6_NF_IPTABLES
@@ -278,19 +270,5 @@ config IP6_NF_RAW
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.
-config NF_CONNTRACK_IPV6
- tristate "IPv6 support for new connection tracking (EXPERIMENTAL)"
- depends on EXPERIMENTAL && NF_CONNTRACK
- ---help---
- Connection tracking keeps a record of what packets have passed
- through your machine, in order to figure out how they are related
- into connections.
-
- This is IPv6 support on Layer 3 independent connection tracking.
- Layer 3 independent connection tracking is experimental scheme
- which generalize ip_conntrack to support other layer 3 protocols.
-
- To compile it as a module, choose M here. If unsure, say N.
-
endmenu
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 7d492226c16e..95d469271c4d 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1972,7 +1972,7 @@ static int ip6t_get_matches(char *buffer, char **start, off_t offset, int length
return pos;
}
-static struct { char *name; get_info_t *get_info; } ip6t_proc_entry[] =
+static const struct { char *name; get_info_t *get_info; } ip6t_proc_entry[] =
{ { "ip6_tables_names", ip6t_get_tables },
{ "ip6_tables_targets", ip6t_get_targets },
{ "ip6_tables_matches", ip6t_get_matches },
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index e2c90b3a8074..753a3ae8502b 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -339,8 +339,8 @@ extern unsigned long nf_ct_icmpv6_timeout;
/* From nf_conntrack_frag6.c */
extern unsigned long nf_ct_frag6_timeout;
-extern unsigned long nf_ct_frag6_low_thresh;
-extern unsigned long nf_ct_frag6_high_thresh;
+extern unsigned int nf_ct_frag6_low_thresh;
+extern unsigned int nf_ct_frag6_high_thresh;
static struct ctl_table_header *nf_ct_ipv6_sysctl_header;
@@ -367,7 +367,7 @@ static ctl_table nf_ct_sysctl_table[] = {
.data = &nf_ct_frag6_low_thresh,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
+ .proc_handler = &proc_dointvec,
},
{
.ctl_name = NET_NF_CONNTRACK_FRAG6_HIGH_THRESH,
@@ -375,7 +375,7 @@ static ctl_table nf_ct_sysctl_table[] = {
.data = &nf_ct_frag6_high_thresh,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
+ .proc_handler = &proc_dointvec,
},
{ .ctl_name = 0 }
};
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index c0f1da5497a9..a7e03cfacd06 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -68,8 +68,8 @@ static int icmpv6_invert_tuple(struct nf_conntrack_tuple *tuple,
[ICMPV6_NI_REPLY - 128] = ICMPV6_NI_REPLY +1
};
- __u8 type = orig->dst.u.icmp.type - 128;
- if (type >= sizeof(invmap) || !invmap[type])
+ int type = orig->dst.u.icmp.type - 128;
+ if (type < 0 || type >= sizeof(invmap) || !invmap[type])
return 0;
tuple->src.u.icmp.id = orig->src.u.icmp.id;
@@ -129,12 +129,12 @@ static int icmpv6_new(struct nf_conn *conntrack,
[ICMPV6_ECHO_REQUEST - 128] = 1,
[ICMPV6_NI_QUERY - 128] = 1
};
+ int type = conntrack->tuplehash[0].tuple.dst.u.icmp.type - 128;
- if (conntrack->tuplehash[0].tuple.dst.u.icmp.type - 128 >= sizeof(valid_new)
- || !valid_new[conntrack->tuplehash[0].tuple.dst.u.icmp.type - 128]) {
+ if (type < 0 || type >= sizeof(valid_new) || !valid_new[type]) {
/* Can't create a new ICMPv6 `conn' with this. */
- DEBUGP("icmp: can't create new conn with type %u\n",
- conntrack->tuplehash[0].tuple.dst.u.icmp.type);
+ DEBUGP("icmpv6: can't create new conn with type %u\n",
+ type + 128);
NF_CT_DUMP_TUPLE(&conntrack->tuplehash[0].tuple);
return 0;
}
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 7640b9bb7694..c2c52af9e560 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -55,9 +55,9 @@
#define NF_CT_FRAG6_LOW_THRESH 196608 /* == 192*1024 */
#define NF_CT_FRAG6_TIMEOUT IPV6_FRAG_TIMEOUT
-int nf_ct_frag6_high_thresh = 256*1024;
-int nf_ct_frag6_low_thresh = 192*1024;
-int nf_ct_frag6_timeout = IPV6_FRAG_TIMEOUT;
+unsigned int nf_ct_frag6_high_thresh = 256*1024;
+unsigned int nf_ct_frag6_low_thresh = 192*1024;
+unsigned long nf_ct_frag6_timeout = IPV6_FRAG_TIMEOUT;
struct nf_ct_frag6_skb_cb
{
@@ -190,8 +190,10 @@ static void nf_ct_frag6_secret_rebuild(unsigned long dummy)
atomic_t nf_ct_frag6_mem = ATOMIC_INIT(0);
/* Memory Tracking Functions. */
-static inline void frag_kfree_skb(struct sk_buff *skb)
+static inline void frag_kfree_skb(struct sk_buff *skb, unsigned int *work)
{
+ if (work)
+ *work -= skb->truesize;
atomic_sub(skb->truesize, &nf_ct_frag6_mem);
if (NFCT_FRAG6_CB(skb)->orig)
kfree_skb(NFCT_FRAG6_CB(skb)->orig);
@@ -199,8 +201,11 @@ static inline void frag_kfree_skb(struct sk_buff *skb)
kfree_skb(skb);
}
-static inline void frag_free_queue(struct nf_ct_frag6_queue *fq)
+static inline void frag_free_queue(struct nf_ct_frag6_queue *fq,
+ unsigned int *work)
{
+ if (work)
+ *work -= sizeof(struct nf_ct_frag6_queue);
atomic_sub(sizeof(struct nf_ct_frag6_queue), &nf_ct_frag6_mem);
kfree(fq);
}
@@ -218,7 +223,8 @@ static inline struct nf_ct_frag6_queue *frag_alloc_queue(void)
/* Destruction primitives. */
/* Complete destruction of fq. */
-static void nf_ct_frag6_destroy(struct nf_ct_frag6_queue *fq)
+static void nf_ct_frag6_destroy(struct nf_ct_frag6_queue *fq,
+ unsigned int *work)
{
struct sk_buff *fp;
@@ -230,17 +236,17 @@ static void nf_ct_frag6_destroy(struct nf_ct_frag6_queue *fq)
while (fp) {
struct sk_buff *xp = fp->next;
- frag_kfree_skb(fp);
+ frag_kfree_skb(fp, work);
fp = xp;
}
- frag_free_queue(fq);
+ frag_free_queue(fq, work);
}
-static __inline__ void fq_put(struct nf_ct_frag6_queue *fq)
+static __inline__ void fq_put(struct nf_ct_frag6_queue *fq, unsigned int *work)
{
if (atomic_dec_and_test(&fq->refcnt))
- nf_ct_frag6_destroy(fq);
+ nf_ct_frag6_destroy(fq, work);
}
/* Kill fq entry. It is not destroyed immediately,
@@ -262,16 +268,21 @@ static void nf_ct_frag6_evictor(void)
{
struct nf_ct_frag6_queue *fq;
struct list_head *tmp;
+ unsigned int work;
- for (;;) {
- if (atomic_read(&nf_ct_frag6_mem) <= nf_ct_frag6_low_thresh)
- return;
+ work = atomic_read(&nf_ct_frag6_mem);
+ if (work <= nf_ct_frag6_low_thresh)
+ return;
+
+ work -= nf_ct_frag6_low_thresh;
+ while (work > 0) {
read_lock(&nf_ct_frag6_lock);
if (list_empty(&nf_ct_frag6_lru_list)) {
read_unlock(&nf_ct_frag6_lock);
return;
}
tmp = nf_ct_frag6_lru_list.next;
+ BUG_ON(tmp == NULL);
fq = list_entry(tmp, struct nf_ct_frag6_queue, lru_list);
atomic_inc(&fq->refcnt);
read_unlock(&nf_ct_frag6_lock);
@@ -281,7 +292,7 @@ static void nf_ct_frag6_evictor(void)
fq_kill(fq);
spin_unlock(&fq->lock);
- fq_put(fq);
+ fq_put(fq, &work);
}
}
@@ -298,7 +309,7 @@ static void nf_ct_frag6_expire(unsigned long data)
out:
spin_unlock(&fq->lock);
- fq_put(fq);
+ fq_put(fq, NULL);
}
/* Creation primitives. */
@@ -318,7 +329,7 @@ static struct nf_ct_frag6_queue *nf_ct_frag6_intern(unsigned int hash,
atomic_inc(&fq->refcnt);
write_unlock(&nf_ct_frag6_lock);
fq_in->last_in |= COMPLETE;
- fq_put(fq_in);
+ fq_put(fq_in, NULL);
return fq;
}
}
@@ -535,7 +546,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
fq->fragments = next;
fq->meat -= free_it->len;
- frag_kfree_skb(free_it);
+ frag_kfree_skb(free_it, NULL);
}
}
@@ -811,7 +822,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
if (nf_ct_frag6_queue(fq, clone, fhdr, nhoff) < 0) {
spin_unlock(&fq->lock);
DEBUGP("Can't insert skb to queue\n");
- fq_put(fq);
+ fq_put(fq, NULL);
goto ret_orig;
}
@@ -822,7 +833,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
}
spin_unlock(&fq->lock);
- fq_put(fq);
+ fq_put(fq, NULL);
return ret_skb;
ret_orig:
@@ -881,5 +892,6 @@ int nf_ct_frag6_init(void)
void nf_ct_frag6_cleanup(void)
{
del_timer(&nf_ct_frag6_secret_timer);
+ nf_ct_frag6_low_thresh = 0;
nf_ct_frag6_evictor();
}
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 651c79b41eeb..a66900cda2af 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -298,13 +298,10 @@ void rawv6_err(struct sock *sk, struct sk_buff *skb,
static inline int rawv6_rcv_skb(struct sock * sk, struct sk_buff * skb)
{
if ((raw6_sk(sk)->checksum || sk->sk_filter) &&
- skb->ip_summed != CHECKSUM_UNNECESSARY) {
- if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum))) {
- /* FIXME: increment a raw6 drops counter here */
- kfree_skb(skb);
- return 0;
- }
- skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb_checksum_complete(skb)) {
+ /* FIXME: increment a raw6 drops counter here */
+ kfree_skb(skb);
+ return 0;
}
/* Charge it to the socket. */
@@ -337,32 +334,25 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
if (!rp->checksum)
skb->ip_summed = CHECKSUM_UNNECESSARY;
- if (skb->ip_summed != CHECKSUM_UNNECESSARY) {
- if (skb->ip_summed == CHECKSUM_HW) {
- skb_postpull_rcsum(skb, skb->nh.raw,
- skb->h.raw - skb->nh.raw);
+ if (skb->ip_summed == CHECKSUM_HW) {
+ skb_postpull_rcsum(skb, skb->nh.raw,
+ skb->h.raw - skb->nh.raw);
+ if (!csum_ipv6_magic(&skb->nh.ipv6h->saddr,
+ &skb->nh.ipv6h->daddr,
+ skb->len, inet->num, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
- if (csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
- skb->len, inet->num, skb->csum)) {
- LIMIT_NETDEBUG(KERN_DEBUG "raw v6 hw csum failure.\n");
- skb->ip_summed = CHECKSUM_NONE;
- }
- }
- if (skb->ip_summed == CHECKSUM_NONE)
- skb->csum = ~csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
- skb->len, inet->num, 0);
}
+ if (skb->ip_summed != CHECKSUM_UNNECESSARY)
+ skb->csum = ~csum_ipv6_magic(&skb->nh.ipv6h->saddr,
+ &skb->nh.ipv6h->daddr,
+ skb->len, inet->num, 0);
if (inet->hdrincl) {
- if (skb->ip_summed != CHECKSUM_UNNECESSARY &&
- (unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum))) {
+ if (skb_checksum_complete(skb)) {
/* FIXME: increment a raw6 drops counter here */
kfree_skb(skb);
return 0;
}
- skb->ip_summed = CHECKSUM_UNNECESSARY;
}
rawv6_rcv_skb(sk, skb);
@@ -407,7 +397,7 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
if (skb->ip_summed==CHECKSUM_UNNECESSARY) {
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
} else if (msg->msg_flags&MSG_TRUNC) {
- if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum)))
+ if (__skb_checksum_complete(skb))
goto csum_copy_err;
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
} else {
@@ -758,7 +748,9 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
}
if (opt == NULL)
opt = np->opt;
- opt = fl6_merge_options(&opt_space, flowlabel, opt);
+ if (flowlabel)
+ opt = fl6_merge_options(&opt_space, flowlabel, opt);
+ opt = ipv6_fixup_options(&opt_space, opt);
fl.proto = proto;
rawv6_probe_proto_opt(&fl, msg);
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index e4fe9ee484dd..5d316cb72ec9 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -74,7 +74,7 @@ struct ip6frag_skb_cb
struct frag_queue
{
- struct frag_queue *next;
+ struct hlist_node list;
struct list_head lru_list; /* lru list member */
__u32 id; /* fragment id */
@@ -95,14 +95,13 @@ struct frag_queue
#define FIRST_IN 2
#define LAST_IN 1
__u16 nhoffset;
- struct frag_queue **pprev;
};
/* Hash table. */
#define IP6Q_HASHSZ 64
-static struct frag_queue *ip6_frag_hash[IP6Q_HASHSZ];
+static struct hlist_head ip6_frag_hash[IP6Q_HASHSZ];
static DEFINE_RWLOCK(ip6_frag_lock);
static u32 ip6_frag_hash_rnd;
static LIST_HEAD(ip6_frag_lru_list);
@@ -110,9 +109,7 @@ int ip6_frag_nqueues = 0;
static __inline__ void __fq_unlink(struct frag_queue *fq)
{
- if(fq->next)
- fq->next->pprev = fq->pprev;
- *fq->pprev = fq->next;
+ hlist_del(&fq->list);
list_del(&fq->lru_list);
ip6_frag_nqueues--;
}
@@ -163,28 +160,21 @@ static void ip6_frag_secret_rebuild(unsigned long dummy)
get_random_bytes(&ip6_frag_hash_rnd, sizeof(u32));
for (i = 0; i < IP6Q_HASHSZ; i++) {
struct frag_queue *q;
+ struct hlist_node *p, *n;
- q = ip6_frag_hash[i];
- while (q) {
- struct frag_queue *next = q->next;
+ hlist_for_each_entry_safe(q, p, n, &ip6_frag_hash[i], list) {
unsigned int hval = ip6qhashfn(q->id,
&q->saddr,
&q->daddr);
if (hval != i) {
- /* Unlink. */
- if (q->next)
- q->next->pprev = q->pprev;
- *q->pprev = q->next;
+ hlist_del(&q->list);
/* Relink to new hash chain. */
- if ((q->next = ip6_frag_hash[hval]) != NULL)
- q->next->pprev = &q->next;
- ip6_frag_hash[hval] = q;
- q->pprev = &ip6_frag_hash[hval];
- }
+ hlist_add_head(&q->list,
+ &ip6_frag_hash[hval]);
- q = next;
+ }
}
}
write_unlock(&ip6_frag_lock);
@@ -337,10 +327,13 @@ static struct frag_queue *ip6_frag_intern(unsigned int hash,
struct frag_queue *fq_in)
{
struct frag_queue *fq;
+#ifdef CONFIG_SMP
+ struct hlist_node *n;
+#endif
write_lock(&ip6_frag_lock);
#ifdef CONFIG_SMP
- for (fq = ip6_frag_hash[hash]; fq; fq = fq->next) {
+ hlist_for_each_entry(fq, n, &ip6_frag_hash[hash], list) {
if (fq->id == fq_in->id &&
ipv6_addr_equal(&fq_in->saddr, &fq->saddr) &&
ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) {
@@ -358,10 +351,7 @@ static struct frag_queue *ip6_frag_intern(unsigned int hash,
atomic_inc(&fq->refcnt);
atomic_inc(&fq->refcnt);
- if((fq->next = ip6_frag_hash[hash]) != NULL)
- fq->next->pprev = &fq->next;
- ip6_frag_hash[hash] = fq;
- fq->pprev = &ip6_frag_hash[hash];
+ hlist_add_head(&fq->list, &ip6_frag_hash[hash]);
INIT_LIST_HEAD(&fq->lru_list);
list_add_tail(&fq->lru_list, &ip6_frag_lru_list);
ip6_frag_nqueues++;
@@ -401,10 +391,11 @@ static __inline__ struct frag_queue *
fq_find(u32 id, struct in6_addr *src, struct in6_addr *dst)
{
struct frag_queue *fq;
+ struct hlist_node *n;
unsigned int hash = ip6qhashfn(id, src, dst);
read_lock(&ip6_frag_lock);
- for(fq = ip6_frag_hash[hash]; fq; fq = fq->next) {
+ hlist_for_each_entry(fq, n, &ip6_frag_hash[hash], list) {
if (fq->id == id &&
ipv6_addr_equal(src, &fq->saddr) &&
ipv6_addr_equal(dst, &fq->daddr)) {
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index f7f42c3e96cb..66140f13d119 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -413,11 +413,14 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
rt = ip6_rt_copy(ort);
if (rt) {
- ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
-
- if (!(rt->rt6i_flags&RTF_GATEWAY))
+ if (!(rt->rt6i_flags&RTF_GATEWAY)) {
+ if (rt->rt6i_dst.plen != 128 &&
+ ipv6_addr_equal(&rt->rt6i_dst.addr, daddr))
+ rt->rt6i_flags |= RTF_ANYCAST;
ipv6_addr_copy(&rt->rt6i_gateway, daddr);
+ }
+ ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
rt->rt6i_dst.plen = 128;
rt->rt6i_flags |= RTF_CACHE;
rt->u.dst.flags |= DST_HOST;
@@ -829,7 +832,7 @@ int ip6_route_add(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh,
}
rt->u.dst.obsolete = -1;
- rt->rt6i_expires = clock_t_to_jiffies(rtmsg->rtmsg_info);
+ rt->rt6i_expires = jiffies + clock_t_to_jiffies(rtmsg->rtmsg_info);
if (nlh && (r = NLMSG_DATA(nlh))) {
rt->rt6i_protocol = r->rtm_protocol;
} else {
@@ -1413,7 +1416,9 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
rt->u.dst.obsolete = -1;
rt->rt6i_flags = RTF_UP | RTF_NONEXTHOP;
- if (!anycast)
+ if (anycast)
+ rt->rt6i_flags |= RTF_ANYCAST;
+ else
rt->rt6i_flags |= RTF_LOCAL;
rt->rt6i_nexthop = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
if (rt->rt6i_nexthop == NULL) {
@@ -1701,10 +1706,8 @@ static void fib6_dump_end(struct netlink_callback *cb)
fib6_walker_unlink(w);
kfree(w);
}
- if (cb->args[1]) {
- cb->done = (void*)cb->args[1];
- cb->args[1] = 0;
- }
+ cb->done = (void*)cb->args[1];
+ cb->args[1] = 0;
}
static int fib6_dump_done(struct netlink_callback *cb)
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index d746d3b27efb..8827389abaf7 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -992,13 +992,12 @@ static void tcp_v6_send_reset(struct sk_buff *skb)
/* sk = NULL, but it is safe for now. RST socket required. */
if (!ip6_dst_lookup(NULL, &buff->dst, &fl)) {
- if ((xfrm_lookup(&buff->dst, &fl, NULL, 0)) < 0)
+ if (xfrm_lookup(&buff->dst, &fl, NULL, 0) >= 0) {
+ ip6_xmit(NULL, buff, &fl, NULL, 0);
+ TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
+ TCP_INC_STATS_BH(TCP_MIB_OUTRSTS);
return;
-
- ip6_xmit(NULL, buff, &fl, NULL, 0);
- TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
- TCP_INC_STATS_BH(TCP_MIB_OUTRSTS);
- return;
+ }
}
kfree_skb(buff);
@@ -1057,11 +1056,11 @@ static void tcp_v6_send_ack(struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32
fl.fl_ip_sport = t1->source;
if (!ip6_dst_lookup(NULL, &buff->dst, &fl)) {
- if ((xfrm_lookup(&buff->dst, &fl, NULL, 0)) < 0)
+ if (xfrm_lookup(&buff->dst, &fl, NULL, 0) >= 0) {
+ ip6_xmit(NULL, buff, &fl, NULL, 0);
+ TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
return;
- ip6_xmit(NULL, buff, &fl, NULL, 0);
- TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
- return;
+ }
}
kfree_skb(buff);
@@ -1401,20 +1400,18 @@ out:
static int tcp_v6_checksum_init(struct sk_buff *skb)
{
if (skb->ip_summed == CHECKSUM_HW) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
if (!tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,skb->csum))
+ &skb->nh.ipv6h->daddr,skb->csum)) {
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
return 0;
- LIMIT_NETDEBUG(KERN_DEBUG "hw tcp v6 csum failed\n");
+ }
}
+
+ skb->csum = ~tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr,
+ &skb->nh.ipv6h->daddr, 0);
+
if (skb->len <= 76) {
- if (tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,skb_checksum(skb, 0, skb->len, 0)))
- return -1;
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- } else {
- skb->csum = ~tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,0);
+ return __skb_checksum_complete(skb);
}
return 0;
}
@@ -1575,7 +1572,7 @@ static int tcp_v6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
goto discard_it;
if ((skb->ip_summed != CHECKSUM_UNNECESSARY &&
- tcp_v6_checksum_init(skb) < 0))
+ tcp_v6_checksum_init(skb)))
goto bad_packet;
th = skb->h.th;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index bf9519341fd3..5cc8731eb55b 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -248,7 +248,7 @@ try_again:
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov,
copied);
} else if (msg->msg_flags&MSG_TRUNC) {
- if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum)))
+ if (__skb_checksum_complete(skb))
goto csum_copy_err;
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov,
copied);
@@ -363,13 +363,10 @@ static inline int udpv6_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
return -1;
}
- if (skb->ip_summed != CHECKSUM_UNNECESSARY) {
- if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum))) {
- UDP6_INC_STATS_BH(UDP_MIB_INERRORS);
- kfree_skb(skb);
- return 0;
- }
- skb->ip_summed = CHECKSUM_UNNECESSARY;
+ if (skb_checksum_complete(skb)) {
+ UDP6_INC_STATS_BH(UDP_MIB_INERRORS);
+ kfree_skb(skb);
+ return 0;
}
if (sock_queue_rcv_skb(sk,skb)<0) {
@@ -491,13 +488,10 @@ static int udpv6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
uh = skb->h.uh;
}
- if (skb->ip_summed==CHECKSUM_HW) {
+ if (skb->ip_summed == CHECKSUM_HW &&
+ !csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
- if (csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, skb->csum)) {
- LIMIT_NETDEBUG(KERN_DEBUG "udp v6 hw csum failure.\n");
- skb->ip_summed = CHECKSUM_NONE;
- }
- }
+
if (skb->ip_summed != CHECKSUM_UNNECESSARY)
skb->csum = ~csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, 0);
@@ -521,8 +515,7 @@ static int udpv6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb))
goto discard;
- if (skb->ip_summed != CHECKSUM_UNNECESSARY &&
- (unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum)))
+ if (skb_checksum_complete(skb))
goto discard;
UDP6_INC_STATS_BH(UDP_MIB_NOPORTS);
@@ -778,7 +771,9 @@ do_udp_sendmsg:
}
if (opt == NULL)
opt = np->opt;
- opt = fl6_merge_options(&opt_space, flowlabel, opt);
+ if (flowlabel)
+ opt = fl6_merge_options(&opt_space, flowlabel, opt);
+ opt = ipv6_fixup_options(&opt_space, opt);
fl->proto = IPPROTO_UDP;
ipv6_addr_copy(&fl->fl6_dst, daddr);
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index cf1d91e74c82..69bd957380e7 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -214,6 +214,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl)
case IPPROTO_UDP:
case IPPROTO_TCP:
case IPPROTO_SCTP:
+ case IPPROTO_DCCP:
if (pskb_may_pull(skb, skb->nh.raw + offset + 4 - skb->data)) {
u16 *ports = (u16 *)exthdr;
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-09 03:31:10 +0000