@@ -12,3 +12,7 @@
/* 6 bytes header + 65535 bytes payload */
#define PHONET_MAX_MTU 65541
#define PHONET_DEV_MTU PHONET_MAX_MTU
+
+#ifdef __KERNEL__
+extern struct header_ops phonet_header_ops;
+#endif
@@ -99,6 +99,35 @@ static struct net_proto_family phonet_proto_family = {
.owner = THIS_MODULE,
};
+/* Phonet device header operations */
+static int pn_header_create(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, const void *daddr,
+ const void *saddr, unsigned len)
+{
+ u8 *media = skb_push(skb, 1);
+
+ if (type != ETH_P_PHONET)
+ return -1;
+
+ if (!saddr)
+ saddr = dev->dev_addr;
+ *media = *(const u8 *)saddr;
+ return 1;
+}
+
+static int pn_header_parse(const struct sk_buff *skb, unsigned char *haddr)
+{
+ const u8 *media = skb_mac_header(skb);
+ *haddr = *media;
+ return 1;
+}
+
+struct header_ops phonet_header_ops = {
+ .create = pn_header_create,
+ .parse = pn_header_parse,
+};
+EXPORT_SYMBOL(phonet_header_ops);
+
/*
* Prepends an ISI header and sends a datagram.
*/
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> --- include/linux/if_phonet.h | 4 ++++ net/phonet/af_phonet.c | 29 +++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+), 0 deletions(-)