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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 

Pablo Neira Ayuso says:

====================
The following patchset contains three Netfilter fixes for your net tree,
they are:

* fix incorrect comparison in the new netnet hash ipset type, from
  Dave Jones.

* fix splat in hashlimit due to missing removal of the content of its
  proc entry in netnamespaces, from Sergey Popovich.

* fix missing rule flushing operation by table in nf_tables. Table
  flushing was already discussed back in October but this got lost and
  no patch has hit the tree to address this issue so far, from me.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2013-12-09 20:43:21 -05:00
parent 66e56cd46b cf9dc09d09
commit 6a46ff87d4
3 changed files with 45 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/netfilter/ipset/ip_set_hash_netnet.c
View File

@ -59,7 +59,7 @@ hash_netnet4_data_equal(const struct hash_netnet4_elem *ip1,
u32 *multi)
{
return ip1->ipcmp == ip2->ipcmp &&
ip2->ccmp == ip2->ccmp;
ip1->ccmp == ip2->ccmp;
}
static inline int

46
net/netfilter/nf_tables_api.c
View File

@ -1717,6 +1717,19 @@ nf_tables_delrule_one(struct nft_ctx *ctx, struct nft_rule *rule)
return -ENOENT;
}
static int nf_table_delrule_by_chain(struct nft_ctx *ctx)
{
struct nft_rule *rule;
int err;
list_for_each_entry(rule, &ctx->chain->rules, list) {
err = nf_tables_delrule_one(ctx, rule);
if (err < 0)
return err;
}
return 0;
}
static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
const struct nlmsghdr *nlh,
const struct nlattr * const nla[])
@ -1725,8 +1738,8 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
const struct nft_af_info *afi;
struct net *net = sock_net(skb->sk);
const struct nft_table *table;
struct nft_chain *chain;
struct nft_rule *rule, *tmp;
struct nft_chain *chain = NULL;
struct nft_rule *rule;
int family = nfmsg->nfgen_family, err = 0;
struct nft_ctx ctx;
@ -1738,22 +1751,29 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
if (IS_ERR(table))
return PTR_ERR(table);
chain = nf_tables_chain_lookup(table, nla[NFTA_RULE_CHAIN]);
if (IS_ERR(chain))
return PTR_ERR(chain);
if (nla[NFTA_RULE_CHAIN]) {
chain = nf_tables_chain_lookup(table, nla[NFTA_RULE_CHAIN]);
if (IS_ERR(chain))
return PTR_ERR(chain);
}
nft_ctx_init(&ctx, skb, nlh, afi, table, chain, nla);
if (nla[NFTA_RULE_HANDLE]) {
rule = nf_tables_rule_lookup(chain, nla[NFTA_RULE_HANDLE]);
if (IS_ERR(rule))
return PTR_ERR(rule);
if (chain) {
if (nla[NFTA_RULE_HANDLE]) {
rule = nf_tables_rule_lookup(chain,
nla[NFTA_RULE_HANDLE]);
if (IS_ERR(rule))
return PTR_ERR(rule);
err = nf_tables_delrule_one(&ctx, rule);
} else {
/* Remove all rules in this chain */
list_for_each_entry_safe(rule, tmp, &chain->rules, list) {
err = nf_tables_delrule_one(&ctx, rule);
} else {
err = nf_table_delrule_by_chain(&ctx);
}
} else {
list_for_each_entry(chain, &table->chains, list) {
ctx.chain = chain;
err = nf_table_delrule_by_chain(&ctx);
if (err < 0)
break;
}

25
net/netfilter/xt_hashlimit.c
View File

@ -325,21 +325,24 @@ static void htable_gc(unsigned long htlong)
add_timer(&ht->timer);
}
static void htable_destroy(struct xt_hashlimit_htable *hinfo)
static void htable_remove_proc_entry(struct xt_hashlimit_htable *hinfo)
{
struct hashlimit_net *hashlimit_net = hashlimit_pernet(hinfo->net);
struct proc_dir_entry *parent;
del_timer_sync(&hinfo->timer);
if (hinfo->family == NFPROTO_IPV4)
parent = hashlimit_net->ipt_hashlimit;
else
parent = hashlimit_net->ip6t_hashlimit;
if(parent != NULL)
if (parent != NULL)
remove_proc_entry(hinfo->name, parent);
}
static void htable_destroy(struct xt_hashlimit_htable *hinfo)
{
del_timer_sync(&hinfo->timer);
htable_remove_proc_entry(hinfo);
htable_selective_cleanup(hinfo, select_all);
kfree(hinfo->name);
vfree(hinfo);
@ -883,21 +886,15 @@ static int __net_init hashlimit_proc_net_init(struct net *net)
static void __net_exit hashlimit_proc_net_exit(struct net *net)
{
struct xt_hashlimit_htable *hinfo;
struct proc_dir_entry *pde;
struct hashlimit_net *hashlimit_net = hashlimit_pernet(net);
/* recent_net_exit() is called before recent_mt_destroy(). Make sure
* that the parent xt_recent proc entry is is empty before trying to
* remove it.
/* hashlimit_net_exit() is called before hashlimit_mt_destroy().
* Make sure that the parent ipt_hashlimit and ip6t_hashlimit proc
* entries is empty before trying to remove it.
*/
mutex_lock(&hashlimit_mutex);
pde = hashlimit_net->ipt_hashlimit;
if (pde == NULL)
pde = hashlimit_net->ip6t_hashlimit;
hlist_for_each_entry(hinfo, &hashlimit_net->htables, node)
remove_proc_entry(hinfo->name, pde);
htable_remove_proc_entry(hinfo);
hashlimit_net->ipt_hashlimit = NULL;
hashlimit_net->ip6t_hashlimit = NULL;
mutex_unlock(&hashlimit_mutex);