diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 14:40:30 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 14:40:30 -0700 |
commit | a57793651ff1a09ef18bade998632435ca2dc13f (patch) | |
tree | fffc839d7b001f196421f09f0a06491588835fe1 /net/ipv6/netfilter | |
parent | 9cf52b2921fbe62566b6b2ee79f71203749c9e5e (diff) | |
parent | 52f095ee88d8851866bc7694ab991ca5abf21d5e (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (51 commits)
[IPV6]: Fix again the fl6_sock_lookup() fixed locking
[NETFILTER]: nf_conntrack_tcp: fix connection reopening fix
[IPV6]: Fix race in ipv6_flowlabel_opt() when inserting two labels
[IPV6]: Lost locking in fl6_sock_lookup
[IPV6]: Lost locking when inserting a flowlabel in ipv6_fl_list
[NETFILTER]: xt_sctp: fix mistake to pass a pointer where array is required
[NET]: Fix OOPS due to missing check in dev_parse_header().
[TCP]: Remove lost_retrans zero seqno special cases
[NET]: fix carrier-on bug?
[NET]: Fix uninitialised variable in ip_frag_reasm()
[IPSEC]: Rename mode to outer_mode and add inner_mode
[IPSEC]: Disallow combinations of RO and AH/ESP/IPCOMP
[IPSEC]: Use the top IPv4 route's peer instead of the bottom
[IPSEC]: Store afinfo pointer in xfrm_mode
[IPSEC]: Add missing BEET checks
[IPSEC]: Move type and mode map into xfrm_state.c
[IPSEC]: Fix length check in xfrm_parse_spi
[IPSEC]: Move ip_summed zapping out of xfrm6_rcv_spi
[IPSEC]: Get nexthdr from caller in xfrm6_rcv_spi
[IPSEC]: Move tunnel parsing for IPv4 out of xfrm4_input
...
Diffstat (limited to 'net/ipv6/netfilter')
-rw-r--r-- | net/ipv6/netfilter/nf_conntrack_reasm.c | 112 |
1 files changed, 21 insertions, 91 deletions
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index 726fafd4196..e170c67c47a 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -130,22 +130,6 @@ static inline void frag_kfree_skb(struct sk_buff *skb, unsigned int *work) kfree_skb(skb); } -static void nf_frag_free(struct inet_frag_queue *q) -{ - kfree(container_of(q, struct nf_ct_frag6_queue, q)); -} - -static inline struct nf_ct_frag6_queue *frag_alloc_queue(void) -{ - struct nf_ct_frag6_queue *fq; - - fq = kzalloc(sizeof(struct nf_ct_frag6_queue), GFP_ATOMIC); - if (fq == NULL) - return NULL; - atomic_add(sizeof(struct nf_ct_frag6_queue), &nf_frags.mem); - return fq; -} - /* Destruction primitives. */ static __inline__ void fq_put(struct nf_ct_frag6_queue *fq) @@ -168,7 +152,10 @@ static void nf_ct_frag6_evictor(void) static void nf_ct_frag6_expire(unsigned long data) { - struct nf_ct_frag6_queue *fq = (struct nf_ct_frag6_queue *) data; + struct nf_ct_frag6_queue *fq; + + fq = container_of((struct inet_frag_queue *)data, + struct nf_ct_frag6_queue, q); spin_lock(&fq->q.lock); @@ -184,89 +171,29 @@ out: /* Creation primitives. */ -static struct nf_ct_frag6_queue *nf_ct_frag6_intern(unsigned int hash, - struct nf_ct_frag6_queue *fq_in) +static __inline__ struct nf_ct_frag6_queue * +fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst) { - struct nf_ct_frag6_queue *fq; -#ifdef CONFIG_SMP - struct hlist_node *n; -#endif - - write_lock(&nf_frags.lock); -#ifdef CONFIG_SMP - hlist_for_each_entry(fq, n, &nf_frags.hash[hash], q.list) { - if (fq->id == fq_in->id && - ipv6_addr_equal(&fq_in->saddr, &fq->saddr) && - ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) { - atomic_inc(&fq->q.refcnt); - write_unlock(&nf_frags.lock); - fq_in->q.last_in |= COMPLETE; - fq_put(fq_in); - return fq; - } - } -#endif - fq = fq_in; - - if (!mod_timer(&fq->q.timer, jiffies + nf_frags_ctl.timeout)) - atomic_inc(&fq->q.refcnt); - - atomic_inc(&fq->q.refcnt); - hlist_add_head(&fq->q.list, &nf_frags.hash[hash]); - INIT_LIST_HEAD(&fq->q.lru_list); - list_add_tail(&fq->q.lru_list, &nf_frags.lru_list); - nf_frags.nqueues++; - write_unlock(&nf_frags.lock); - return fq; -} + struct inet_frag_queue *q; + struct ip6_create_arg arg; + unsigned int hash; + arg.id = id; + arg.src = src; + arg.dst = dst; + hash = ip6qhashfn(id, src, dst); -static struct nf_ct_frag6_queue * -nf_ct_frag6_create(unsigned int hash, __be32 id, struct in6_addr *src, struct in6_addr *dst) -{ - struct nf_ct_frag6_queue *fq; - - if ((fq = frag_alloc_queue()) == NULL) { - pr_debug("Can't alloc new queue\n"); + q = inet_frag_find(&nf_frags, &arg, hash); + if (q == NULL) goto oom; - } - - fq->id = id; - ipv6_addr_copy(&fq->saddr, src); - ipv6_addr_copy(&fq->daddr, dst); - - setup_timer(&fq->q.timer, nf_ct_frag6_expire, (unsigned long)fq); - spin_lock_init(&fq->q.lock); - atomic_set(&fq->q.refcnt, 1); - return nf_ct_frag6_intern(hash, fq); + return container_of(q, struct nf_ct_frag6_queue, q); oom: + pr_debug("Can't alloc new queue\n"); return NULL; } -static __inline__ struct nf_ct_frag6_queue * -fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst) -{ - struct nf_ct_frag6_queue *fq; - struct hlist_node *n; - unsigned int hash = ip6qhashfn(id, src, dst); - - read_lock(&nf_frags.lock); - hlist_for_each_entry(fq, n, &nf_frags.hash[hash], q.list) { - if (fq->id == id && - ipv6_addr_equal(src, &fq->saddr) && - ipv6_addr_equal(dst, &fq->daddr)) { - atomic_inc(&fq->q.refcnt); - read_unlock(&nf_frags.lock); - return fq; - } - } - read_unlock(&nf_frags.lock); - - return nf_ct_frag6_create(hash, id, src, dst); -} - static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb, struct frag_hdr *fhdr, int nhoff) @@ -749,9 +676,12 @@ int nf_ct_frag6_init(void) { nf_frags.ctl = &nf_frags_ctl; nf_frags.hashfn = nf_hashfn; - nf_frags.destructor = nf_frag_free; + nf_frags.constructor = ip6_frag_init; + nf_frags.destructor = NULL; nf_frags.skb_free = nf_skb_free; nf_frags.qsize = sizeof(struct nf_ct_frag6_queue); + nf_frags.match = ip6_frag_match; + nf_frags.frag_expire = nf_ct_frag6_expire; inet_frags_init(&nf_frags); return 0; |