#include <net/rawv6.h>
#include <net/ndisc.h>
#include <net/addrconf.h>
+#include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
#include <linux/sysctl.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv6.h>
__u16 nhoffset;
};
-struct inet_frags_ctl nf_frags_ctl __read_mostly = {
- .high_thresh = 256 * 1024,
- .low_thresh = 192 * 1024,
- .timeout = IPV6_FRAG_TIMEOUT,
- .secret_interval = 10 * 60 * HZ,
-};
-
static struct inet_frags nf_frags;
+static struct netns_frags nf_init_frags;
+
+#ifdef CONFIG_SYSCTL
+struct ctl_table nf_ct_ipv6_sysctl_table[] = {
+ {
+ .procname = "nf_conntrack_frag6_timeout",
+ .data = &nf_init_frags.timeout,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_jiffies,
+ },
+ {
+ .ctl_name = NET_NF_CONNTRACK_FRAG6_LOW_THRESH,
+ .procname = "nf_conntrack_frag6_low_thresh",
+ .data = &nf_init_frags.low_thresh,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+ {
+ .ctl_name = NET_NF_CONNTRACK_FRAG6_HIGH_THRESH,
+ .procname = "nf_conntrack_frag6_high_thresh",
+ .data = &nf_init_frags.high_thresh,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+ { .ctl_name = 0 }
+};
+#endif
-static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr,
- struct in6_addr *daddr)
+static unsigned int ip6qhashfn(__be32 id, const struct in6_addr *saddr,
+ const struct in6_addr *daddr)
{
u32 a, b, c;
static unsigned int nf_hashfn(struct inet_frag_queue *q)
{
- struct nf_ct_frag6_queue *nq;
+ const struct nf_ct_frag6_queue *nq;
nq = container_of(q, struct nf_ct_frag6_queue, q);
return ip6qhashfn(nq->id, &nq->saddr, &nq->daddr);
{
if (work)
*work -= skb->truesize;
- atomic_sub(skb->truesize, &nf_frags.mem);
+ atomic_sub(skb->truesize, &nf_init_frags.mem);
nf_skb_free(skb);
kfree_skb(skb);
}
static void nf_ct_frag6_evictor(void)
{
- inet_frag_evictor(&nf_frags);
+ local_bh_disable();
+ inet_frag_evictor(&nf_init_frags, &nf_frags);
+ local_bh_enable();
}
static void nf_ct_frag6_expire(unsigned long data)
spin_lock(&fq->q.lock);
- if (fq->q.last_in & COMPLETE)
+ if (fq->q.last_in & INET_FRAG_COMPLETE)
goto out;
fq_kill(fq);
arg.dst = dst;
hash = ip6qhashfn(id, src, dst);
- q = inet_frag_find(&nf_frags, &arg, hash);
+ q = inet_frag_find(&nf_init_frags, &nf_frags, &arg, hash);
if (q == NULL)
goto oom;
static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
- struct frag_hdr *fhdr, int nhoff)
+ const struct frag_hdr *fhdr, int nhoff)
{
struct sk_buff *prev, *next;
int offset, end;
- if (fq->q.last_in & COMPLETE) {
+ if (fq->q.last_in & INET_FRAG_COMPLETE) {
pr_debug("Allready completed\n");
goto err;
}
* 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)) {
pr_debug("already received last fragment\n");
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) {
pr_debug("last packet already reached.\n");
goto err;
}
skb->dev = NULL;
fq->q.stamp = skb->tstamp;
fq->q.meat += skb->len;
- atomic_add(skb->truesize, &nf_frags.mem);
+ atomic_add(skb->truesize, &nf_init_frags.mem);
/* The first fragment.
* nhoffset is obtained from the first fragment, of course.
*/
if (offset == 0) {
fq->nhoffset = nhoff;
- fq->q.last_in |= FIRST_IN;
+ fq->q.last_in |= INET_FRAG_FIRST_IN;
}
write_lock(&nf_frags.lock);
- list_move_tail(&fq->q.lru_list, &nf_frags.lru_list);
+ list_move_tail(&fq->q.lru_list, &nf_init_frags.lru_list);
write_unlock(&nf_frags.lock);
return 0;
clone->ip_summed = head->ip_summed;
NFCT_FRAG6_CB(clone)->orig = NULL;
- atomic_add(clone->truesize, &nf_frags.mem);
+ atomic_add(clone->truesize, &nf_init_frags.mem);
}
/* We have to remove fragment header from datagram and to relocate
skb_shinfo(head)->frag_list = head->next;
skb_reset_transport_header(head);
skb_push(head, head->data - skb_network_header(head));
- atomic_sub(head->truesize, &nf_frags.mem);
+ atomic_sub(head->truesize, &nf_init_frags.mem);
for (fp=head->next; fp; fp = fp->next) {
head->data_len += fp->len;
else if (head->ip_summed == CHECKSUM_COMPLETE)
head->csum = csum_add(head->csum, fp->csum);
head->truesize += fp->truesize;
- atomic_sub(fp->truesize, &nf_frags.mem);
+ atomic_sub(fp->truesize, &nf_init_frags.mem);
}
head->next = NULL;
goto ret_orig;
}
- if (atomic_read(&nf_frags.mem) > nf_frags_ctl.high_thresh)
+ if (atomic_read(&nf_init_frags.mem) > nf_init_frags.high_thresh)
nf_ct_frag6_evictor();
fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr);
goto ret_orig;
}
- 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) {
ret_skb = nf_ct_frag6_reasm(fq, dev);
if (ret_skb == NULL)
pr_debug("Can't reassemble fragmented packets\n");
nf_conntrack_put_reasm(skb);
}
-int nf_ct_frag6_kfree_frags(struct sk_buff *skb)
-{
- struct sk_buff *s, *s2;
-
- for (s = NFCT_FRAG6_CB(skb)->orig; s; s = s2) {
-
- s2 = s->next;
- kfree_skb(s);
- }
-
- kfree_skb(skb);
-
- return 0;
-}
-
int nf_ct_frag6_init(void)
{
- nf_frags.ctl = &nf_frags_ctl;
nf_frags.hashfn = nf_hashfn;
nf_frags.constructor = ip6_frag_init;
nf_frags.destructor = NULL;
nf_frags.qsize = sizeof(struct nf_ct_frag6_queue);
nf_frags.match = ip6_frag_match;
nf_frags.frag_expire = nf_ct_frag6_expire;
+ nf_frags.secret_interval = 10 * 60 * HZ;
+ nf_init_frags.timeout = IPV6_FRAG_TIMEOUT;
+ nf_init_frags.high_thresh = 256 * 1024;
+ nf_init_frags.low_thresh = 192 * 1024;
+ inet_frags_init_net(&nf_init_frags);
inet_frags_init(&nf_frags);
return 0;
{
inet_frags_fini(&nf_frags);
- nf_frags_ctl.low_thresh = 0;
+ nf_init_frags.low_thresh = 0;
nf_ct_frag6_evictor();
}
projects / linux-2.6-omap-h63xx.git / blobdiff