Hello.
On 20/04/16 10:19, Alexander Aring wrote:
This patch exports some neighbour discovery functions which can be used
by 6lowpan neighbour discovery ops functionality then.
Cc: David S. Miller<davem@xxxxxxxxxxxxx>
Cc: Alexey Kuznetsov<kuznet@xxxxxxxxxxxxx>
Cc: James Morris<jmorris@xxxxxxxxx>
Cc: Hideaki YOSHIFUJI<yoshfuji@xxxxxxxxxxxxxx>
Cc: Patrick McHardy<kaber@xxxxxxxxx>
Signed-off-by: Alexander Aring<aar@xxxxxxxxxxxxxx>
---
include/net/ndisc.h | 16 ++++++++++++++++
net/ipv6/addrconf.c | 1 +
net/ipv6/ndisc.c | 28 ++++++++++------------------
3 files changed, 27 insertions(+), 18 deletions(-)
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 14ed016..35a4396 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -53,6 +53,15 @@ enum {
#include <net/neighbour.h>
+/* Set to 3 to get tracing... */
+#define ND_DEBUG 1
+
+#define ND_PRINTK(val, level, fmt, ...) \
+do { \
+ if (val <= ND_DEBUG) \
+ net_##level##_ratelimited(fmt, ##__VA_ARGS__); \
+} while (0)
+
struct ctl_table;
struct inet6_dev;
struct net_device;
@@ -267,6 +276,13 @@ int ndisc_late_init(void);
void ndisc_late_cleanup(void);
void ndisc_cleanup(void);
+void ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data,
+ int data_len);
+struct sk_buff *ndisc_alloc_skb(struct net_device *dev, int len);
+void ndisc_send_skb(struct sk_buff *skb, const struct in6_addr *daddr,
+ const struct in6_addr *saddr);
+int pndisc_is_router(const void *pkey, struct net_device *dev);
+
int ndisc_rcv(struct sk_buff *skb);
void ndisc_send_rs(struct net_device *dev,
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index a2ef04b..8f05ef8 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1775,6 +1775,7 @@ struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *add
return result;
}
+EXPORT_SYMBOL(ipv6_get_ifaddr);
/* Gets referenced address, destroys ifaddr */
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 297080a..dc8bfec 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -73,15 +73,6 @@
#include <linux/netfilter.h>
#include <linux/netfilter_ipv6.h>
-/* Set to 3 to get tracing... */
-#define ND_DEBUG 1
-
-#define ND_PRINTK(val, level, fmt, ...) \
-do { \
- if (val <= ND_DEBUG) \
- net_##level##_ratelimited(fmt, ##__VA_ARGS__); \
-} while (0)
-
static u32 ndisc_hash(const void *pkey,
const struct net_device *dev,
__u32 *hash_rnd);
@@ -150,8 +141,8 @@ struct neigh_table nd_tbl = {
};
EXPORT_SYMBOL_GPL(nd_tbl);
-static void ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data,
- int data_len)
+void ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data,
+ int data_len)
{
int pad = ndisc_addr_option_pad(skb->dev->type);
int space = ndisc_opt_addr_space(skb->dev, data_len);
@@ -171,6 +162,7 @@ static void ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data,
if (space > 0)
memset(opt, 0, space);
}
+EXPORT_SYMBOL(ndisc_fill_addr_option);
Hmm, one export in this files uses EXPORT_SYMBOL while another one uses
EXPORT_SYMBOL_GPL. Not sure which one is preferred in this file.
static struct nd_opt_hdr *ndisc_next_option(struct nd_opt_hdr *cur,
struct nd_opt_hdr *end)
@@ -378,8 +370,7 @@ static void pndisc_destructor(struct pneigh_entry *n)
ipv6_dev_mc_dec(dev, &maddr);
}
-static struct sk_buff *ndisc_alloc_skb(struct net_device *dev,
- int len)
+struct sk_buff *ndisc_alloc_skb(struct net_device *dev, int len)
{
int hlen = LL_RESERVED_SPACE(dev);
int tlen = dev->needed_tailroom;
@@ -406,6 +397,7 @@ static struct sk_buff *ndisc_alloc_skb(struct net_device *dev,
return skb;
}
+EXPORT_SYMBOL(ndisc_alloc_skb);
Same here.
static void ip6_nd_hdr(struct sk_buff *skb,
const struct in6_addr *saddr,
@@ -428,9 +420,8 @@ static void ip6_nd_hdr(struct sk_buff *skb,
hdr->daddr = *daddr;
}
-static void ndisc_send_skb(struct sk_buff *skb,
- const struct in6_addr *daddr,
- const struct in6_addr *saddr)
+void ndisc_send_skb(struct sk_buff *skb, const struct in6_addr *daddr,
+ const struct in6_addr *saddr)
{
struct dst_entry *dst = skb_dst(skb);
struct net *net = dev_net(skb->dev);
@@ -479,6 +470,7 @@ static void ndisc_send_skb(struct sk_buff *skb,
rcu_read_unlock();
}
+EXPORT_SYMBOL(ndisc_send_skb);
And here.
static void ip6_ndisc_send_na(struct net_device *dev,
const struct in6_addr *daddr,
@@ -692,8 +684,7 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb)
}
}
-static int pndisc_is_router(const void *pkey,
- struct net_device *dev)
+int pndisc_is_router(const void *pkey, struct net_device *dev)
{
struct pneigh_entry *n;
int ret = -1;
@@ -706,6 +697,7 @@ static int pndisc_is_router(const void *pkey,
return ret;
}
+EXPORT_SYMBOL(pndisc_is_router);
static void ip6_ndisc_recv_ns(struct sk_buff *skb)
{
Reviewed-by: Stefan Schmidt<stefan@xxxxxxxxxxxxxxx>
regards
Stefan Schmidt
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