ipv6: sr: add calls to verify and insert HMAC signatures
This patch enables the verification of the HMAC signature for transiting
SR-enabled packets, and its insertion on encapsulated/injected SRH.
Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index b8ba396..541cfa6 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -49,6 +49,9 @@
#endif
#include <linux/seg6.h>
#include <net/seg6.h>
+#ifdef CONFIG_IPV6_SEG6_HMAC
+#include <net/seg6_hmac.h>
+#endif
#include <linux/uaccess.h>
@@ -340,6 +343,13 @@
return -1;
}
+#ifdef CONFIG_IPV6_SEG6_HMAC
+ if (!seg6_hmac_validate_skb(skb)) {
+ kfree_skb(skb);
+ return -1;
+ }
+#endif
+
looped_back:
if (hdr->segments_left > 0) {
if (hdr->nexthdr != NEXTHDR_IPV6 && hdr->segments_left == 1 &&