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[1/4] net: netfilter: add nf_inet_addr_mask_inplace helper fn

Message ID 1490120944-1770-2-git-send-email-johunt@akamai.com
State Changes Requested
Delegated to: Jozsef Kadlecsik
Headers show

Commit Message

Josh Hunt March 21, 2017, 6:29 p.m. UTC 
Adds new  helper function to be used for ipset nf_inet_addr netmask support.

Signed-off-by: Josh Hunt <johunt@akamai.com>
---
 include/linux/netfilter.h | 9 +++++++++
 1 file changed, 9 insertions(+)
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Patch

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index a4b97be..4218969 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -39,6 +39,15 @@  static inline void nf_inet_addr_mask(const union nf_inet_addr *a1,
 	result->all[3] = a1->all[3] & mask->all[3];
 }
 
+static inline void nf_inet_addr_mask_inplace(union nf_inet_addr *a1,
+					     const union nf_inet_addr *mask)
+{
+	a1->all[0] &= mask->all[0];
+	a1->all[1] &= mask->all[1];
+	a1->all[2] &= mask->all[2];
+	a1->all[3] &= mask->all[3];
+}
+
 int netfilter_init(void);
 
 struct sk_buff;