diff options
| -rw-r--r-- | include/linux/if_phonet.h | 4 | ||||
| -rw-r--r-- | net/phonet/af_phonet.c | 29 |
2 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/if_phonet.h b/include/linux/if_phonet.h index 22df25fbc4e2..7e989216ec17 100644 --- a/include/linux/if_phonet.h +++ b/include/linux/if_phonet.h @@ -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 diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c index e6771d3961cf..51397ff308bd 100644 --- a/net/phonet/af_phonet.c +++ b/net/phonet/af_phonet.c @@ -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. */ |