spin_lock(&fq->q.lock);
- if (fq->q.last_in & COMPLETE)
+ if (fq->q.last_in & INET_FRAG_COMPLETE)
goto out;
fq_kill(fq);
rcu_read_unlock();
/* Don't send error if the first segment did not arrive. */
- if (!(fq->q.last_in&FIRST_IN) || !fq->q.fragments)
+ if (!(fq->q.last_in & INET_FRAG_FIRST_IN) || !fq->q.fragments)
goto out;
/*
struct net_device *dev;
int offset, end;
- if (fq->q.last_in & COMPLETE)
+ if (fq->q.last_in & INET_FRAG_COMPLETE)
goto err;
offset = ntohs(fhdr->frag_off) & ~0x7;
* or have different end, the segment is corrupted.
*/
if (end < fq->q.len ||
- ((fq->q.last_in & LAST_IN) && end != fq->q.len))
+ ((fq->q.last_in & INET_FRAG_LAST_IN) && end != fq->q.len))
goto err;
- fq->q.last_in |= LAST_IN;
+ fq->q.last_in |= INET_FRAG_LAST_IN;
fq->q.len = end;
} else {
/* Check if the fragment is rounded to 8 bytes.
}
if (end > fq->q.len) {
/* Some bits beyond end -> corruption. */
- if (fq->q.last_in & LAST_IN)
+ if (fq->q.last_in & INET_FRAG_LAST_IN)
goto err;
fq->q.len = end;
}
*/
if (offset == 0) {
fq->nhoffset = nhoff;
- fq->q.last_in |= FIRST_IN;
+ fq->q.last_in |= INET_FRAG_FIRST_IN;
}
- if (fq->q.last_in == (FIRST_IN | LAST_IN) && fq->q.meat == fq->q.len)
+ if (fq->q.last_in == (INET_FRAG_FIRST_IN | INET_FRAG_LAST_IN) &&
+ fq->q.meat == fq->q.len)
return ip6_frag_reasm(fq, prev, dev);
write_lock(&ip6_frags.lock);
- list_move_tail(&fq->q.lru_list, &ip6_frags.lru_list);
+ list_move_tail(&fq->q.lru_list, &fq->q.net->lru_list);
write_unlock(&ip6_frags.lock);
return -1;
return 1;
}
- net = skb->dev->nd_net;
- if (atomic_read(&net->ipv6.frags.mem) >
- init_net.ipv6.sysctl.frags.high_thresh)
+ net = dev_net(skb->dev);
+ if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh)
ip6_evictor(net, ip6_dst_idev(skb->dst));
if ((fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr,
{
.ctl_name = NET_IPV6_IP6FRAG_HIGH_THRESH,
.procname = "ip6frag_high_thresh",
- .data = &init_net.ipv6.sysctl.frags.high_thresh,
+ .data = &init_net.ipv6.frags.high_thresh,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
{
.ctl_name = NET_IPV6_IP6FRAG_LOW_THRESH,
.procname = "ip6frag_low_thresh",
- .data = &init_net.ipv6.sysctl.frags.low_thresh,
+ .data = &init_net.ipv6.frags.low_thresh,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
{
.ctl_name = NET_IPV6_IP6FRAG_TIME,
.procname = "ip6frag_time",
- .data = &init_net.ipv6.sysctl.frags.timeout,
+ .data = &init_net.ipv6.frags.timeout,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
{
.ctl_name = NET_IPV6_IP6FRAG_SECRET_INTERVAL,
.procname = "ip6frag_secret_interval",
- .data = &init_net.ipv6.sysctl.frags.secret_interval,
+ .data = &ip6_frags.secret_interval,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
static int ip6_frags_sysctl_register(struct net *net)
{
+ struct ctl_table *table;
struct ctl_table_header *hdr;
- hdr = register_net_sysctl_table(net, net_ipv6_ctl_path,
- ip6_frags_ctl_table);
- return hdr == NULL ? -ENOMEM : 0;
+ table = ip6_frags_ctl_table;
+ if (net != &init_net) {
+ table = kmemdup(table, sizeof(ip6_frags_ctl_table), GFP_KERNEL);
+ if (table == NULL)
+ goto err_alloc;
+
+ table[0].data = &net->ipv6.frags.high_thresh;
+ table[1].data = &net->ipv6.frags.low_thresh;
+ table[2].data = &net->ipv6.frags.timeout;
+ table[3].mode &= ~0222;
+ }
+
+ hdr = register_net_sysctl_table(net, net_ipv6_ctl_path, table);
+ if (hdr == NULL)
+ goto err_reg;
+
+ net->ipv6.sysctl.frags_hdr = hdr;
+ return 0;
+
+err_reg:
+ if (net != &init_net)
+ kfree(table);
+err_alloc:
+ return -ENOMEM;
+}
+
+static void ip6_frags_sysctl_unregister(struct net *net)
+{
+ struct ctl_table *table;
+
+ table = net->ipv6.sysctl.frags_hdr->ctl_table_arg;
+ unregister_net_sysctl_table(net->ipv6.sysctl.frags_hdr);
+ kfree(table);
}
#else
static inline int ip6_frags_sysctl_register(struct net *net)
{
return 0;
}
+
+static inline void ip6_frags_sysctl_unregister(struct net *net)
+{
+}
#endif
static int ipv6_frags_init_net(struct net *net)
{
- ip6_frags.ctl = &net->ipv6.sysctl.frags;
-
- net->ipv6.sysctl.frags.high_thresh = 256 * 1024;
- net->ipv6.sysctl.frags.low_thresh = 192 * 1024;
- net->ipv6.sysctl.frags.timeout = IPV6_FRAG_TIMEOUT;
- net->ipv6.sysctl.frags.secret_interval = 10 * 60 * HZ;
+ net->ipv6.frags.high_thresh = 256 * 1024;
+ net->ipv6.frags.low_thresh = 192 * 1024;
+ net->ipv6.frags.timeout = IPV6_FRAG_TIMEOUT;
inet_frags_init_net(&net->ipv6.frags);
return ip6_frags_sysctl_register(net);
}
+static void ipv6_frags_exit_net(struct net *net)
+{
+ ip6_frags_sysctl_unregister(net);
+ inet_frags_exit_net(&net->ipv6.frags, &ip6_frags);
+}
+
+static struct pernet_operations ip6_frags_ops = {
+ .init = ipv6_frags_init_net,
+ .exit = ipv6_frags_exit_net,
+};
+
int __init ipv6_frag_init(void)
{
int ret;
if (ret)
goto out;
- ipv6_frags_init_net(&init_net);
+ register_pernet_subsys(&ip6_frags_ops);
ip6_frags.hashfn = ip6_hashfn;
ip6_frags.constructor = ip6_frag_init;
ip6_frags.qsize = sizeof(struct frag_queue);
ip6_frags.match = ip6_frag_match;
ip6_frags.frag_expire = ip6_frag_expire;
+ ip6_frags.secret_interval = 10 * 60 * HZ;
inet_frags_init(&ip6_frags);
out:
return ret;
void ipv6_frag_exit(void)
{
inet_frags_fini(&ip6_frags);
+ unregister_pernet_subsys(&ip6_frags_ops);
inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
}
projects / linux-2.6-omap-h63xx.git / blobdiff