aboutsummaryrefslogtreecommitdiffstats
path: root/net/ipv6
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/addrconf.c31
-rw-r--r--net/ipv6/anycast.c9
-rw-r--r--net/ipv6/esp6.c2
-rw-r--r--net/ipv6/icmp.c22
-rw-r--r--net/ipv6/ip6_input.c3
-rw-r--r--net/ipv6/ndisc.c22
-rw-r--r--net/ipv6/netfilter/ip6_queue.c8
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c2
-rw-r--r--net/ipv6/xfrm6_mode_beet.c1
-rw-r--r--net/ipv6/xfrm6_mode_tunnel.c2
-rw-r--r--net/ipv6/xfrm6_output.c2
-rw-r--r--net/ipv6/xfrm6_state.c2
12 files changed, 69 insertions, 37 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 101e0e70ba27..a65935a9afd9 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -776,6 +776,7 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i
struct inet6_dev *idev = ifp->idev;
struct in6_addr addr, *tmpaddr;
unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_cstamp, tmp_tstamp;
+ unsigned long regen_advance;
int tmp_plen;
int ret = 0;
int max_addresses;
@@ -836,8 +837,23 @@ retry:
tmp_tstamp = ifp->tstamp;
spin_unlock_bh(&ifp->lock);
+ regen_advance = idev->cnf.regen_max_retry *
+ idev->cnf.dad_transmits *
+ idev->nd_parms->retrans_time / HZ;
write_unlock(&idev->lock);
+ /* A temporary address is created only if this calculated Preferred
+ * Lifetime is greater than REGEN_ADVANCE time units. In particular,
+ * an implementation must not create a temporary address with a zero
+ * Preferred Lifetime.
+ */
+ if (tmp_prefered_lft <= regen_advance) {
+ in6_ifa_put(ifp);
+ in6_dev_put(idev);
+ ret = -1;
+ goto out;
+ }
+
addr_flags = IFA_F_TEMPORARY;
/* set in addrconf_prefix_rcv() */
if (ifp->flags & IFA_F_OPTIMISTIC)
@@ -1831,6 +1847,9 @@ ok:
* lifetimes of an existing temporary address
* when processing a Prefix Information Option.
*/
+ if (ifp != ift->ifpub)
+ continue;
+
spin_lock(&ift->lock);
flags = ift->flags;
if (ift->valid_lft > valid_lft &&
@@ -2437,7 +2456,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
ASSERT_RTNL();
- if (dev == init_net.loopback_dev && how == 1)
+ if ((dev->flags & IFF_LOOPBACK) && how == 1)
how = 0;
rt6_ifdown(dev);
@@ -2450,7 +2469,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* Step 1: remove reference to ipv6 device from parent device.
Do not dev_put!
*/
- if (how == 1) {
+ if (how) {
idev->dead = 1;
/* protected by rtnl_lock */
@@ -2482,12 +2501,12 @@ static int addrconf_ifdown(struct net_device *dev, int how)
write_lock_bh(&idev->lock);
/* Step 3: clear flags for stateless addrconf */
- if (how != 1)
+ if (!how)
idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
/* Step 4: clear address list */
#ifdef CONFIG_IPV6_PRIVACY
- if (how == 1 && del_timer(&idev->regen_timer))
+ if (how && del_timer(&idev->regen_timer))
in6_dev_put(idev);
/* clear tempaddr list */
@@ -2524,7 +2543,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* Step 5: Discard multicast list */
- if (how == 1)
+ if (how)
ipv6_mc_destroy_dev(idev);
else
ipv6_mc_down(idev);
@@ -2533,7 +2552,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* Shot the device (if unregistered) */
- if (how == 1) {
+ if (how) {
addrconf_sysctl_unregister(idev);
neigh_parms_release(&nd_tbl, idev->nd_parms);
neigh_ifdown(&nd_tbl, dev);
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index 9c7f83fbc3a1..e5f56c953b58 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -334,9 +334,7 @@ int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr)
idev->ac_list = aca;
write_unlock_bh(&idev->lock);
- dst_hold(&rt->u.dst);
- if (ip6_ins_rt(rt))
- dst_release(&rt->u.dst);
+ ip6_ins_rt(rt);
addrconf_join_solict(dev, &aca->aca_addr);
@@ -378,10 +376,7 @@ int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr)
addrconf_leave_solict(idev, &aca->aca_addr);
dst_hold(&aca->aca_rt->u.dst);
- if (ip6_del_rt(aca->aca_rt))
- dst_free(&aca->aca_rt->u.dst);
- else
- dst_release(&aca->aca_rt->u.dst);
+ ip6_del_rt(aca->aca_rt);
aca_put(aca);
return 0;
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 0ec1402320ea..c6bb4c6d24b3 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -282,7 +282,7 @@ static int esp6_input(struct xfrm_state *x, struct sk_buff *skb)
struct scatterlist *sg;
struct scatterlist *asg;
- if (!pskb_may_pull(skb, sizeof(*esph))) {
+ if (!pskb_may_pull(skb, sizeof(*esph) + crypto_aead_ivsize(aead))) {
ret = -EINVAL;
goto out;
}
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 121d517bf91c..893287ecc628 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -436,24 +436,26 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
}
if (xfrm_decode_session_reverse(skb, &fl2, AF_INET6))
- goto out;
+ goto relookup_failed;
if (ip6_dst_lookup(sk, &dst2, &fl))
- goto out;
+ goto relookup_failed;
err = xfrm_lookup(&dst2, &fl, sk, XFRM_LOOKUP_ICMP);
- if (err == -ENOENT) {
+ switch (err) {
+ case 0:
+ dst_release(dst);
+ dst = dst2;
+ break;
+ case -EPERM:
+ goto out_dst_release;
+ default:
+relookup_failed:
if (!dst)
goto out;
- goto route_done;
+ break;
}
- dst_release(dst);
- dst = dst2;
-
- if (err)
- goto out;
-
route_done:
if (ipv6_addr_is_multicast(&fl.fl6_dst))
hlimit = np->mcast_hops;
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 178aebc0427a..98ab4f459905 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -239,8 +239,7 @@ int ip6_mc_input(struct sk_buff *skb)
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INMCASTPKTS);
hdr = ipv6_hdr(skb);
- deliver = unlikely(skb->dev->flags & (IFF_PROMISC|IFF_ALLMULTI)) ||
- ipv6_chk_mcast_addr(skb->dev, &hdr->daddr, NULL);
+ deliver = ipv6_chk_mcast_addr(skb->dev, &hdr->daddr, NULL);
/*
* IPv6 multicast router mode isnt currently supported.
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 51557c27a0cd..452a2ac4eec8 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -676,6 +676,20 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb)
}
}
+static struct pneigh_entry *pndisc_check_router(struct net_device *dev,
+ struct in6_addr *addr, int *is_router)
+{
+ struct pneigh_entry *n;
+
+ read_lock_bh(&nd_tbl.lock);
+ n = __pneigh_lookup(&nd_tbl, &init_net, addr, dev);
+ if (n != NULL)
+ *is_router = (n->flags & NTF_ROUTER);
+ read_unlock_bh(&nd_tbl.lock);
+
+ return n;
+}
+
static void ndisc_recv_ns(struct sk_buff *skb)
{
struct nd_msg *msg = (struct nd_msg *)skb_transport_header(skb);
@@ -692,7 +706,7 @@ static void ndisc_recv_ns(struct sk_buff *skb)
struct pneigh_entry *pneigh = NULL;
int dad = ipv6_addr_any(saddr);
int inc;
- int is_router;
+ int is_router = 0;
if (ipv6_addr_is_multicast(&msg->target)) {
ND_PRINTK2(KERN_WARNING
@@ -790,8 +804,8 @@ static void ndisc_recv_ns(struct sk_buff *skb)
if (ipv6_chk_acast_addr(dev, &msg->target) ||
(idev->cnf.forwarding &&
(ipv6_devconf.proxy_ndp || idev->cnf.proxy_ndp) &&
- (pneigh = pneigh_lookup(&nd_tbl, &init_net,
- &msg->target, dev, 0)) != NULL)) {
+ (pneigh = pndisc_check_router(dev, &msg->target,
+ &is_router)) != NULL)) {
if (!(NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED) &&
skb->pkt_type != PACKET_HOST &&
inc != 0 &&
@@ -812,7 +826,7 @@ static void ndisc_recv_ns(struct sk_buff *skb)
goto out;
}
- is_router = !!(pneigh ? pneigh->flags & NTF_ROUTER : idev->cnf.forwarding);
+ is_router = !!(pneigh ? is_router : idev->cnf.forwarding);
if (dad) {
struct in6_addr maddr;
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index cc2f9afcf808..8d366f7f2a9a 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -591,11 +591,9 @@ static int __init ip6_queue_init(void)
}
#ifdef CONFIG_PROC_FS
- proc = create_proc_entry(IPQ_PROC_FS_NAME, 0, init_net.proc_net);
- if (proc) {
- proc->owner = THIS_MODULE;
- proc->proc_fops = &ip6_queue_proc_fops;
- } else {
+ proc = proc_create(IPQ_PROC_FS_NAME, 0, init_net.proc_net,
+ &ip6_queue_proc_fops);
+ if (!proc) {
printk(KERN_ERR "ip6_queue: failed to create proc entry\n");
goto cleanup_ipqnl;
}
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 2a0d698b24d5..24c0d03095bf 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -171,7 +171,9 @@ static __inline__ void fq_kill(struct nf_ct_frag6_queue *fq)
static void nf_ct_frag6_evictor(void)
{
+ local_bh_disable();
inet_frag_evictor(&nf_init_frags, &nf_frags);
+ local_bh_enable();
}
static void nf_ct_frag6_expire(unsigned long data)
diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c
index 0527d11c1ae3..d6ce400f585f 100644
--- a/net/ipv6/xfrm6_mode_beet.c
+++ b/net/ipv6/xfrm6_mode_beet.c
@@ -45,6 +45,7 @@ static int xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb)
skb->mac_header = skb->network_header +
offsetof(struct ipv6hdr, nexthdr);
skb->transport_header = skb->network_header + sizeof(*top_iph);
+ __skb_pull(skb, XFRM_MODE_SKB_CB(skb)->ihl);
xfrm6_beet_make_header(skb);
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index 0c742faaa30b..e20529b4c825 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -45,7 +45,7 @@ static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
memcpy(top_iph->flow_lbl, XFRM_MODE_SKB_CB(skb)->flow_lbl,
sizeof(top_iph->flow_lbl));
- top_iph->nexthdr = x->inner_mode->afinfo->proto;
+ top_iph->nexthdr = xfrm_af2proto(skb->dst->ops->family);
dsfield = XFRM_MODE_SKB_CB(skb)->tos;
dsfield = INET_ECN_encapsulate(dsfield, dsfield);
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 79ccfb080733..0af823cf7f1f 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -62,7 +62,7 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
{
int err;
- err = x->inner_mode->afinfo->extract_output(x, skb);
+ err = xfrm_inner_extract_output(x, skb);
if (err)
return err;
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index dc817e035e23..ff1e1db8e236 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -174,10 +174,12 @@ int xfrm6_extract_header(struct sk_buff *skb)
{
struct ipv6hdr *iph = ipv6_hdr(skb);
+ XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph);
XFRM_MODE_SKB_CB(skb)->id = 0;
XFRM_MODE_SKB_CB(skb)->frag_off = htons(IP_DF);
XFRM_MODE_SKB_CB(skb)->tos = ipv6_get_dsfield(iph);
XFRM_MODE_SKB_CB(skb)->ttl = iph->hop_limit;
+ XFRM_MODE_SKB_CB(skb)->optlen = 0;
memcpy(XFRM_MODE_SKB_CB(skb)->flow_lbl, iph->flow_lbl,
sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl));
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.