Since commit ca065d0cf80f ("udp: no longer use SLAB_DESTROY_BY_RCU")
the udp6_lib_lookup and udp4_lib_lookup functions are only
provided when it is actually possible to call them.
However, moving the callers now caused a link error:
net/built-in.o: In function `nf_sk_lookup_slow_v6':
(.text+0x131a39): undefined reference to `udp6_lib_lookup'
net/ipv4/netfilter/nf_socket_ipv4.o: In function `nf_sk_lookup_slow_v4':
nf_socket_ipv4.c:(.text.nf_sk_lookup_slow_v4+0x114): undefined reference to `udp4_lib_lookup'
This extends the #ifdef so we also provide the functions when
CONFIG_NF_SOCKET_IPV4 or CONFIG_NF_SOCKET_IPV6, respectively
are set.
Fixes: 8db4c5be88f6 ("netfilter: move socket lookup infrastructure to nf_socket_ipv{4,6}.c")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
The build failure came from the netfilter tree but is now
present in net-next, so if the solution is correct, this
patch can be applied there.
---
net/ipv4/udp.c | 3 ++-
net/ipv6/udp.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 097b70628631..c827e4ea509e 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -580,7 +580,8 @@ EXPORT_SYMBOL_GPL(udp4_lib_lookup_skb);
* Does increment socket refcount.
*/
#if IS_ENABLED(CONFIG_NETFILTER_XT_MATCH_SOCKET) || \
- IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TPROXY)
+ IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TPROXY) || \
+ IS_ENABLED(CONFIG_NF_SOCKET_IPV4)
struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
__be32 daddr, __be16 dport, int dif)
{
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 5313818b7485..86a8cacd333b 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -302,7 +302,8 @@ EXPORT_SYMBOL_GPL(udp6_lib_lookup_skb);
* Does increment socket refcount.
*/
#if IS_ENABLED(CONFIG_NETFILTER_XT_MATCH_SOCKET) || \
- IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TPROXY)
+ IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TPROXY) || \
+ IS_ENABLED(CONFIG_NF_SOCKET_IPV6)
struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport,
const struct in6_addr *daddr, __be16 dport, int dif)
{
--
2.9.0
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