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authorFlorian Westphal <fw@strlen.de>2019-04-23 10:48:23 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-04-27 09:35:40 +0200
commit5d827bfe37a5cecd1de33405afde4708657643c5 (patch)
treee4f44ec63306701c0712fbdb952e93a13ec6e578 /net/ipv6/netfilter
parentccfa73daf762f3adac3f6c0e2f09c3c74548775f (diff)
ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module
[ Upstream commit 70b095c84326640eeacfd69a411db8fc36e8ab1a ] IPV6=m DEFRAG_IPV6=m CONNTRACK=y yields: net/netfilter/nf_conntrack_proto.o: In function `nf_ct_netns_do_get': net/netfilter/nf_conntrack_proto.c:802: undefined reference to `nf_defrag_ipv6_enable' net/netfilter/nf_conntrack_proto.o:(.rodata+0x640): undefined reference to `nf_conntrack_l4proto_icmpv6' Setting DEFRAG_IPV6=y causes undefined references to ip6_rhash_params ip6_frag_init and ip6_expire_frag_queue so it would be needed to force IPV6=y too. This patch gets rid of the 'followup linker error' by removing the dependency of ipv6.ko symbols from netfilter ipv6 defrag. Shared code is placed into a header, then used from both. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/ipv6/netfilter')
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c17
-rw-r--r--net/ipv6/netfilter/nf_defrag_ipv6_hooks.c3
2 files changed, 13 insertions, 7 deletions
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 237fb04c6716..0568d49b5da4 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -33,9 +33,8 @@
#include <net/sock.h>
#include <net/snmp.h>
-#include <net/inet_frag.h>
+#include <net/ipv6_frag.h>
-#include <net/ipv6.h>
#include <net/protocol.h>
#include <net/transp_v6.h>
#include <net/rawv6.h>
@@ -159,7 +158,7 @@ static void nf_ct_frag6_expire(struct timer_list *t)
fq = container_of(frag, struct frag_queue, q);
net = container_of(fq->q.net, struct net, nf_frag.frags);
- ip6_expire_frag_queue(net, fq);
+ ip6frag_expire_frag_queue(net, fq);
}
/* Creation primitives. */
@@ -641,16 +640,24 @@ static struct pernet_operations nf_ct_net_ops = {
.exit = nf_ct_net_exit,
};
+static const struct rhashtable_params nfct_rhash_params = {
+ .head_offset = offsetof(struct inet_frag_queue, node),
+ .hashfn = ip6frag_key_hashfn,
+ .obj_hashfn = ip6frag_obj_hashfn,
+ .obj_cmpfn = ip6frag_obj_cmpfn,
+ .automatic_shrinking = true,
+};
+
int nf_ct_frag6_init(void)
{
int ret = 0;
- nf_frags.constructor = ip6_frag_init;
+ nf_frags.constructor = ip6frag_init;
nf_frags.destructor = NULL;
nf_frags.qsize = sizeof(struct frag_queue);
nf_frags.frag_expire = nf_ct_frag6_expire;
nf_frags.frags_cache_name = nf_frags_cache_name;
- nf_frags.rhash_params = ip6_rhash_params;
+ nf_frags.rhash_params = nfct_rhash_params;
ret = inet_frags_init(&nf_frags);
if (ret)
goto out;
diff --git a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
index b326da59257f..123bfb13a5d1 100644
--- a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
+++ b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
@@ -14,8 +14,7 @@
#include <linux/skbuff.h>
#include <linux/icmp.h>
#include <linux/sysctl.h>
-#include <net/ipv6.h>
-#include <net/inet_frag.h>
+#include <net/ipv6_frag.h>
#include <linux/netfilter_ipv6.h>
#include <linux/netfilter_bridge.h>