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authorDavid S. Miller <davem@davemloft.net>2013-12-29 00:24:28 -0500
committerDavid S. Miller <davem@davemloft.net>2013-12-29 00:24:28 -0500
commita72338a00ed19f68bb08a1b46dad5a315e562ed9 (patch)
treeb611bf5c2f284f0423fde24ac5c8692c03135f68 /net
parent6a9eadccff2926e392173a989042f14c867cffbf (diff)
parent2ee0d3c80fdb7974cfa1c7e25b5048e9fcaf69b6 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says: ==================== Netfilter/IPVS fixes for net This patchset contains four nf_tables fixes, one IPVS fix due to missing updates in the interaction with the new sedadj conntrack extension that was added to support the netfilter synproxy code, and a couple of one-liners to fix netnamespace netfilter issues. More specifically, they are: * Fix ipv6_find_hdr() call without offset being explicitly initialized in nft_exthdr, as required by that function, from Daniel Borkmann. * Fix oops in nfnetlink_log when using netns and unloading the kernel module, from Gao feng. * Fix BUG_ON in nf_ct_timestamp extension after netns is destroyed, from Helmut Schaa. * Fix crash in IPVS due to missing sequence adjustment extension being allocated in the conntrack, from Jesper Dangaard Brouer. * Add bugtrap to spot a warning in case you deference sequence adjustment conntrack area when not available, this should help to catch similar invalid dereferences in the Netfilter tree, also from Jesper. * Fix incomplete dumping of sets in nf_tables when retrieving by family, from me. * Fix oops when updating the table state (dormant <-> active) and having user (not base ) chains, from me. * Fix wrong validation in set element data that results in returning -EINVAL when using the nf_tables dictionary feature with mappings, also from me. We don't usually have this amount of fixes by this time (as we're already in -rc5 of the development cycle), although half of them are related to nf_tables which is a relatively new thing, and I also believe that holidays have also delayed the flight of bugfixes to mainstream a bit. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/ipvs/ip_vs_nfct.c6
-rw-r--r--net/netfilter/nf_conntrack_seqadj.c5
-rw-r--r--net/netfilter/nf_conntrack_timestamp.c1
-rw-r--r--net/netfilter/nf_tables_api.c26
-rw-r--r--net/netfilter/nfnetlink_log.c1
-rw-r--r--net/netfilter/nft_exthdr.c2
6 files changed, 33 insertions, 8 deletions
diff --git a/net/netfilter/ipvs/ip_vs_nfct.c b/net/netfilter/ipvs/ip_vs_nfct.c
index c8beafd401aa..5a355a46d1dc 100644
--- a/net/netfilter/ipvs/ip_vs_nfct.c
+++ b/net/netfilter/ipvs/ip_vs_nfct.c
@@ -63,6 +63,7 @@
#include <net/ip_vs.h>
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/nf_conntrack_expect.h>
+#include <net/netfilter/nf_conntrack_seqadj.h>
#include <net/netfilter/nf_conntrack_helper.h>
#include <net/netfilter/nf_conntrack_zones.h>
@@ -97,6 +98,11 @@ ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp, int outin)
if (CTINFO2DIR(ctinfo) != IP_CT_DIR_ORIGINAL)
return;
+ /* Applications may adjust TCP seqs */
+ if (cp->app && nf_ct_protonum(ct) == IPPROTO_TCP &&
+ !nfct_seqadj(ct) && !nfct_seqadj_ext_add(ct))
+ return;
+
/*
* The connection is not yet in the hashtable, so we update it.
* CIP->VIP will remain the same, so leave the tuple in
diff --git a/net/netfilter/nf_conntrack_seqadj.c b/net/netfilter/nf_conntrack_seqadj.c
index 17c1bcb182c6..b2d38da67822 100644
--- a/net/netfilter/nf_conntrack_seqadj.c
+++ b/net/netfilter/nf_conntrack_seqadj.c
@@ -36,6 +36,11 @@ int nf_ct_seqadj_set(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
if (off == 0)
return 0;
+ if (unlikely(!seqadj)) {
+ WARN(1, "Wrong seqadj usage, missing nfct_seqadj_ext_add()\n");
+ return 0;
+ }
+
set_bit(IPS_SEQ_ADJUST_BIT, &ct->status);
spin_lock_bh(&ct->lock);
diff --git a/net/netfilter/nf_conntrack_timestamp.c b/net/netfilter/nf_conntrack_timestamp.c
index 902fb0a6b38a..7a394df0deb7 100644
--- a/net/netfilter/nf_conntrack_timestamp.c
+++ b/net/netfilter/nf_conntrack_timestamp.c
@@ -97,7 +97,6 @@ int nf_conntrack_tstamp_pernet_init(struct net *net)
void nf_conntrack_tstamp_pernet_fini(struct net *net)
{
nf_conntrack_tstamp_fini_sysctl(net);
- nf_ct_extend_unregister(&tstamp_extend);
}
int nf_conntrack_tstamp_init(void)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index f93b7d06f4be..71a9f49a768b 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -312,6 +312,9 @@ static int nf_tables_table_enable(struct nft_table *table)
int err, i = 0;
list_for_each_entry(chain, &table->chains, list) {
+ if (!(chain->flags & NFT_BASE_CHAIN))
+ continue;
+
err = nf_register_hook(&nft_base_chain(chain)->ops);
if (err < 0)
goto err;
@@ -321,6 +324,9 @@ static int nf_tables_table_enable(struct nft_table *table)
return 0;
err:
list_for_each_entry(chain, &table->chains, list) {
+ if (!(chain->flags & NFT_BASE_CHAIN))
+ continue;
+
if (i-- <= 0)
break;
@@ -333,8 +339,10 @@ static int nf_tables_table_disable(struct nft_table *table)
{
struct nft_chain *chain;
- list_for_each_entry(chain, &table->chains, list)
- nf_unregister_hook(&nft_base_chain(chain)->ops);
+ list_for_each_entry(chain, &table->chains, list) {
+ if (chain->flags & NFT_BASE_CHAIN)
+ nf_unregister_hook(&nft_base_chain(chain)->ops);
+ }
return 0;
}
@@ -2098,17 +2106,21 @@ static int nf_tables_dump_sets_all(struct nft_ctx *ctx, struct sk_buff *skb,
struct netlink_callback *cb)
{
const struct nft_set *set;
- unsigned int idx = 0, s_idx = cb->args[0];
+ unsigned int idx, s_idx = cb->args[0];
struct nft_table *table, *cur_table = (struct nft_table *)cb->args[2];
if (cb->args[1])
return skb->len;
list_for_each_entry(table, &ctx->afi->tables, list) {
- if (cur_table && cur_table != table)
- continue;
+ if (cur_table) {
+ if (cur_table != table)
+ continue;
+ cur_table = NULL;
+ }
ctx->table = table;
+ idx = 0;
list_for_each_entry(set, &ctx->table->sets, list) {
if (idx < s_idx)
goto cont;
@@ -2370,7 +2382,9 @@ static int nf_tables_bind_check_setelem(const struct nft_ctx *ctx,
enum nft_registers dreg;
dreg = nft_type_to_reg(set->dtype);
- return nft_validate_data_load(ctx, dreg, &elem->data, set->dtype);
+ return nft_validate_data_load(ctx, dreg, &elem->data,
+ set->dtype == NFT_DATA_VERDICT ?
+ NFT_DATA_VERDICT : NFT_DATA_VALUE);
}
int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set,
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index 3c4b69e5fe17..a155d19a225e 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -1053,6 +1053,7 @@ static void __net_exit nfnl_log_net_exit(struct net *net)
#ifdef CONFIG_PROC_FS
remove_proc_entry("nfnetlink_log", net->nf.proc_netfilter);
#endif
+ nf_log_unset(net, &nfulnl_logger);
}
static struct pernet_operations nfnl_log_net_ops = {
diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c
index 8e0bb75e7c51..55c939f5371f 100644
--- a/net/netfilter/nft_exthdr.c
+++ b/net/netfilter/nft_exthdr.c
@@ -31,7 +31,7 @@ static void nft_exthdr_eval(const struct nft_expr *expr,
{
struct nft_exthdr *priv = nft_expr_priv(expr);
struct nft_data *dest = &data[priv->dreg];
- unsigned int offset;
+ unsigned int offset = 0;
int err;
err = ipv6_find_hdr(pkt->skb, &offset, priv->type, NULL, NULL);