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-rw-r--r--net/ipv6/exthdrs.c10
-rw-r--r--net/ipv6/seg6_iptunnel.c21
2 files changed, 31 insertions, 0 deletions
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index b8ba3961ff8a..541cfa6345e5 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 @@ static int ipv6_srh_rcv(struct sk_buff *skb)
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 &&
diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c
index 39762b2fa7a2..bbfca22c34ae 100644
--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -29,6 +29,9 @@
#ifdef CONFIG_DST_CACHE
#include <net/dst_cache.h>
#endif
+#ifdef CONFIG_IPV6_SEG6_HMAC
+#include <net/seg6_hmac.h>
+#endif
struct seg6_lwt {
#ifdef CONFIG_DST_CACHE
@@ -130,6 +133,14 @@ static int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh)
hdr->daddr = isrh->segments[isrh->first_segment];
set_tun_src(net, skb->dev, &hdr->daddr, &hdr->saddr);
+#ifdef CONFIG_IPV6_SEG6_HMAC
+ if (sr_has_hmac(isrh)) {
+ err = seg6_push_hmac(net, &hdr->saddr, isrh);
+ if (unlikely(err))
+ return err;
+ }
+#endif
+
skb_postpush_rcsum(skb, hdr, tot_len);
return 0;
@@ -172,6 +183,16 @@ static int seg6_do_srh_inline(struct sk_buff *skb, struct ipv6_sr_hdr *osrh)
isrh->segments[0] = hdr->daddr;
hdr->daddr = isrh->segments[isrh->first_segment];
+#ifdef CONFIG_IPV6_SEG6_HMAC
+ if (sr_has_hmac(isrh)) {
+ struct net *net = dev_net(skb_dst(skb)->dev);
+
+ err = seg6_push_hmac(net, &hdr->saddr, isrh);
+ if (unlikely(err))
+ return err;
+ }
+#endif
+
skb_postpush_rcsum(skb, hdr, sizeof(struct ipv6hdr) + hdrlen);
return 0;