ipv6: sr: export SRH insertion functions

This patch exports the seg6_do_srh_encap() and seg6_do_srh_inline()
functions. It also removes the CONFIG_IPV6_SEG6_INLINE knob
that enabled the compilation of seg6_do_srh_inline(). This function
is now built-in.

Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/seg6.h b/include/net/seg6.h
index 4e03575..a32abb0 100644 (file)
--- a/include/net/seg6.h
+++ b/include/net/seg6.h
@@ -58,5 +58,7 @@ extern int seg6_iptunnel_init(void);
 extern void seg6_iptunnel_exit(void);
 
 extern bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len);
+extern int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh);
+extern int seg6_do_srh_inline(struct sk_buff *skb, struct ipv6_sr_hdr *osrh);
 
 #endif

diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 48c4529..50181a9 100644 (file)
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -315,18 +315,6 @@ config IPV6_SEG6_LWTUNNEL
 
          If unsure, say N.
 
-config IPV6_SEG6_INLINE
-       bool "IPv6: direct Segment Routing Header insertion "
-       depends on IPV6_SEG6_LWTUNNEL
-       ---help---
-         Support for direct insertion of the Segment Routing Header,
-         also known as inline mode. Be aware that direct insertion of
-         extension headers (as opposed to encapsulation) may break
-         multiple mechanisms such as PMTUD or IPSec AH. Use this feature
-         only if you know exactly what you are doing.
-
-         If unsure, say N.
-
 config IPV6_SEG6_HMAC
        bool "IPv6: Segment Routing HMAC support"
        depends on IPV6

diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c
index 264d772..5012330 100644 (file)
--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -91,7 +91,7 @@ static void set_tun_src(struct net *net, struct net_device *dev,
 }
 
 /* encapsulate an IPv6 packet within an outer IPv6 header with a given SRH */
-static int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh)
+int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh)
 {
        struct net *net = dev_net(skb_dst(skb)->dev);
        struct ipv6hdr *hdr, *inner_hdr;
@@ -141,10 +141,10 @@ static int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh)
 
        return 0;
 }
+EXPORT_SYMBOL_GPL(seg6_do_srh_encap);
 
 /* insert an SRH within an IPv6 packet, just after the IPv6 header */
-#ifdef CONFIG_IPV6_SEG6_INLINE
-static int seg6_do_srh_inline(struct sk_buff *skb, struct ipv6_sr_hdr *osrh)
+int seg6_do_srh_inline(struct sk_buff *skb, struct ipv6_sr_hdr *osrh)
 {
        struct ipv6hdr *hdr, *oldhdr;
        struct ipv6_sr_hdr *isrh;
@@ -193,7 +193,7 @@ static int seg6_do_srh_inline(struct sk_buff *skb, struct ipv6_sr_hdr *osrh)
 
        return 0;
 }
-#endif
+EXPORT_SYMBOL_GPL(seg6_do_srh_inline);
 
 static int seg6_do_srh(struct sk_buff *skb)
 {
@@ -209,12 +209,10 @@ static int seg6_do_srh(struct sk_buff *skb)
        }
 
        switch (tinfo->mode) {
-#ifdef CONFIG_IPV6_SEG6_INLINE
        case SEG6_IPTUN_MODE_INLINE:
                err = seg6_do_srh_inline(skb, tinfo->srh);
                skb_reset_inner_headers(skb);
                break;
-#endif
        case SEG6_IPTUN_MODE_ENCAP:
                err = seg6_do_srh_encap(skb, tinfo->srh);
                break;
@@ -357,10 +355,8 @@ static int seg6_build_state(struct nlattr *nla,
                return -EINVAL;
 
        switch (tuninfo->mode) {
-#ifdef CONFIG_IPV6_SEG6_INLINE
        case SEG6_IPTUN_MODE_INLINE:
                break;
-#endif
        case SEG6_IPTUN_MODE_ENCAP:
                break;
        default: