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| author | Thierry Escande <thierry.escande@linux.intel.com> | 2012-09-26 18:16:44 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-09-27 10:47:59 +0200 |
| commit | 4463523bef98ff827a89cf8219db7dfac4350241 (patch) | |
| tree | 50b87765b5b8e14074812b6fa3f442a6d5d661ab /include | |
| parent | ee5e8d812ca25bf95a97b4368aec4e680678e75e (diff) | |
| download | linux-4463523bef98ff827a89cf8219db7dfac4350241.tar.bz2 | |
NFC: LLCP raw socket support
This adds support for socket of type SOCK_RAW to LLCP.
sk_buff are copied and sent to raw sockets with a 2 bytes extra header:
The first byte header contains the nfc adapter index.
The second one contains flags:
- 0x01 - Direction (0=RX, 1=TX)
- 0x02-0x80 - Reserved
A raw socket has to be explicitly bound to a nfc adapter. This is achieved
by specifying the adapter index to be bound to in the dev_idx field of the
sockaddr_nfc_llcp struct passed to bind().
Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/nfc.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/nfc.h b/include/linux/nfc.h index 6189f27e305b..d908d17da56d 100644 --- a/include/linux/nfc.h +++ b/include/linux/nfc.h @@ -183,4 +183,15 @@ struct sockaddr_nfc_llcp { #define NFC_HEADER_SIZE 1 +/** + * Pseudo-header info for raw socket packets + * First byte is the adapter index + * Second byte contains flags + * - 0x01 - Direction (0=RX, 1=TX) + * - 0x02-0x80 - Reserved + **/ +#define NFC_LLCP_RAW_HEADER_SIZE 2 +#define NFC_LLCP_DIRECTION_RX 0x00 +#define NFC_LLCP_DIRECTION_TX 0x01 + #endif /*__LINUX_NFC_H */ |