@@ -60,6 +60,10 @@ extern int seg6_local_init(void);
extern void seg6_local_exit(void);
extern bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len);
+extern struct ipv6_sr_hdr *get_srh(struct sk_buff *skb);
+extern void advance_nextseg(struct ipv6_sr_hdr *srh, struct in6_addr *daddr);
+extern void lookup_nexthop(struct sk_buff *skb, struct in6_addr *nhaddr,
+ u32 tbl_id);
extern int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh,
int proto);
extern int seg6_do_srh_inline(struct sk_buff *skb, struct ipv6_sr_hdr *osrh);
@@ -59,7 +59,7 @@ static struct seg6_local_lwt *seg6_local_lwtunnel(struct lwtunnel_state *lwt)
return (struct seg6_local_lwt *)lwt->data;
}
-static struct ipv6_sr_hdr *get_srh(struct sk_buff *skb)
+struct ipv6_sr_hdr *get_srh(struct sk_buff *skb)
{
struct ipv6_sr_hdr *srh;
int len, srhoff = 0;
@@ -82,6 +82,7 @@ static struct ipv6_sr_hdr *get_srh(struct sk_buff *skb)
return srh;
}
+EXPORT_SYMBOL_GPL(get_srh);
static struct ipv6_sr_hdr *get_and_validate_srh(struct sk_buff *skb)
{
@@ -131,7 +132,7 @@ static bool decap_and_validate(struct sk_buff *skb, int proto)
return true;
}
-static void advance_nextseg(struct ipv6_sr_hdr *srh, struct in6_addr *daddr)
+void advance_nextseg(struct ipv6_sr_hdr *srh, struct in6_addr *daddr)
{
struct in6_addr *addr;
@@ -139,9 +140,10 @@ static void advance_nextseg(struct ipv6_sr_hdr *srh, struct in6_addr *daddr)
addr = srh->segments + srh->segments_left;
*daddr = *addr;
}
+EXPORT_SYMBOL_GPL(advance_nextseg);
-static void lookup_nexthop(struct sk_buff *skb, struct in6_addr *nhaddr,
- u32 tbl_id)
+void lookup_nexthop(struct sk_buff *skb, struct in6_addr *nhaddr,
+ u32 tbl_id)
{
struct net *net = dev_net(skb->dev);
struct ipv6hdr *hdr = ipv6_hdr(skb);
@@ -188,6 +190,7 @@ static void lookup_nexthop(struct sk_buff *skb, struct in6_addr *nhaddr,
skb_dst_drop(skb);
skb_dst_set(skb, dst);
}
+EXPORT_SYMBOL_GPL(lookup_nexthop);
/* regular endpoint function */
static int input_action_end(struct sk_buff *skb, struct seg6_local_lwt *slwt)
Some functions of seg6local are very useful to process SRv6 encapsulated packets. This patch exports some functions of seg6local that are useful and can be re-used at different parts of the kernel. The set of exported functions are: (1) get_srh() (2) advance_nextseg() (3) lookup_nexthop Signed-off-by: Ahmed Abdelsalam <amsalam20@gmail.com> --- I'm writing some extensions to netfilter framework to support Segment Routing. These function are useful to process SR-encapsulated packets include/net/seg6.h | 4 ++++ net/ipv6/seg6_local.c | 11 +++++++---- 2 files changed, 11 insertions(+), 4 deletions(-)