diff options
| author |   Remi Denis-Courmont <remi.denis-courmont@nokia.com> | 2008-09-22 20:08:04 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-09-22 20:08:04 -0700 |
| commit | 5f77076d75d35c9f5619e1f9d7e7428a627f65e6 (patch) | |
| tree | 0c0bca5a2f00efb47791f6cf50b6b591409eefab | |
| parent | Phonet: Phonet datagram transport protocol (diff) | |
| download | linux-dev-5f77076d75d35c9f5619e1f9d7e7428a627f65e6.tar.xz linux-dev-5f77076d75d35c9f5619e1f9d7e7428a627f65e6.zip | |
Phonet: provide MAC header operations
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -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. */ |