4463523bef
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>
197 lines
6.1 KiB
C
197 lines
6.1 KiB
C
/*
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* Copyright (C) 2011 Instituto Nokia de Tecnologia
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*
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* Authors:
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* Lauro Ramos Venancio <lauro.venancio@openbossa.org>
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* Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __LINUX_NFC_H
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#define __LINUX_NFC_H
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#include <linux/types.h>
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#include <linux/socket.h>
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#define NFC_GENL_NAME "nfc"
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#define NFC_GENL_VERSION 1
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#define NFC_GENL_MCAST_EVENT_NAME "events"
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/**
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* enum nfc_commands - supported nfc commands
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*
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* @NFC_CMD_UNSPEC: unspecified command
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*
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* @NFC_CMD_GET_DEVICE: request information about a device (requires
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* %NFC_ATTR_DEVICE_INDEX) or dump request to get a list of all nfc devices
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* @NFC_CMD_DEV_UP: turn on the nfc device
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* (requires %NFC_ATTR_DEVICE_INDEX)
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* @NFC_CMD_DEV_DOWN: turn off the nfc device
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* (requires %NFC_ATTR_DEVICE_INDEX)
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* @NFC_CMD_START_POLL: start polling for targets using the given protocols
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* (requires %NFC_ATTR_DEVICE_INDEX and %NFC_ATTR_PROTOCOLS)
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* @NFC_CMD_STOP_POLL: stop polling for targets (requires
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* %NFC_ATTR_DEVICE_INDEX)
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* @NFC_CMD_GET_TARGET: dump all targets found by the previous poll (requires
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* %NFC_ATTR_DEVICE_INDEX)
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* @NFC_EVENT_TARGETS_FOUND: event emitted when a new target is found
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* (it sends %NFC_ATTR_DEVICE_INDEX)
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* @NFC_EVENT_DEVICE_ADDED: event emitted when a new device is registred
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* (it sends %NFC_ATTR_DEVICE_NAME, %NFC_ATTR_DEVICE_INDEX and
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* %NFC_ATTR_PROTOCOLS)
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* @NFC_EVENT_DEVICE_REMOVED: event emitted when a device is removed
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* (it sends %NFC_ATTR_DEVICE_INDEX)
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* @NFC_EVENT_TM_ACTIVATED: event emitted when the adapter is activated in
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* target mode.
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* @NFC_EVENT_DEVICE_DEACTIVATED: event emitted when the adapter is deactivated
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* from target mode.
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*/
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enum nfc_commands {
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NFC_CMD_UNSPEC,
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NFC_CMD_GET_DEVICE,
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NFC_CMD_DEV_UP,
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NFC_CMD_DEV_DOWN,
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NFC_CMD_DEP_LINK_UP,
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NFC_CMD_DEP_LINK_DOWN,
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NFC_CMD_START_POLL,
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NFC_CMD_STOP_POLL,
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NFC_CMD_GET_TARGET,
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NFC_EVENT_TARGETS_FOUND,
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NFC_EVENT_DEVICE_ADDED,
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NFC_EVENT_DEVICE_REMOVED,
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NFC_EVENT_TARGET_LOST,
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NFC_EVENT_TM_ACTIVATED,
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NFC_EVENT_TM_DEACTIVATED,
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/* private: internal use only */
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__NFC_CMD_AFTER_LAST
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};
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#define NFC_CMD_MAX (__NFC_CMD_AFTER_LAST - 1)
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/**
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* enum nfc_attrs - supported nfc attributes
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*
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* @NFC_ATTR_UNSPEC: unspecified attribute
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*
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* @NFC_ATTR_DEVICE_INDEX: index of nfc device
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* @NFC_ATTR_DEVICE_NAME: device name, max 8 chars
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* @NFC_ATTR_PROTOCOLS: nfc protocols - bitwise or-ed combination from
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* NFC_PROTO_*_MASK constants
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* @NFC_ATTR_TARGET_INDEX: index of the nfc target
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* @NFC_ATTR_TARGET_SENS_RES: NFC-A targets extra information such as NFCID
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* @NFC_ATTR_TARGET_SEL_RES: NFC-A targets extra information (useful if the
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* target is not NFC-Forum compliant)
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* @NFC_ATTR_TARGET_NFCID1: NFC-A targets identifier, max 10 bytes
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* @NFC_ATTR_TARGET_SENSB_RES: NFC-B targets extra information, max 12 bytes
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* @NFC_ATTR_TARGET_SENSF_RES: NFC-F targets extra information, max 18 bytes
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* @NFC_ATTR_COMM_MODE: Passive or active mode
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* @NFC_ATTR_RF_MODE: Initiator or target
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* @NFC_ATTR_IM_PROTOCOLS: Initiator mode protocols to poll for
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* @NFC_ATTR_TM_PROTOCOLS: Target mode protocols to listen for
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*/
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enum nfc_attrs {
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NFC_ATTR_UNSPEC,
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NFC_ATTR_DEVICE_INDEX,
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NFC_ATTR_DEVICE_NAME,
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NFC_ATTR_PROTOCOLS,
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NFC_ATTR_TARGET_INDEX,
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NFC_ATTR_TARGET_SENS_RES,
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NFC_ATTR_TARGET_SEL_RES,
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NFC_ATTR_TARGET_NFCID1,
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NFC_ATTR_TARGET_SENSB_RES,
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NFC_ATTR_TARGET_SENSF_RES,
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NFC_ATTR_COMM_MODE,
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NFC_ATTR_RF_MODE,
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NFC_ATTR_DEVICE_POWERED,
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NFC_ATTR_IM_PROTOCOLS,
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NFC_ATTR_TM_PROTOCOLS,
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/* private: internal use only */
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__NFC_ATTR_AFTER_LAST
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};
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#define NFC_ATTR_MAX (__NFC_ATTR_AFTER_LAST - 1)
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#define NFC_DEVICE_NAME_MAXSIZE 8
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#define NFC_NFCID1_MAXSIZE 10
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#define NFC_SENSB_RES_MAXSIZE 12
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#define NFC_SENSF_RES_MAXSIZE 18
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#define NFC_GB_MAXSIZE 48
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/* NFC protocols */
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#define NFC_PROTO_JEWEL 1
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#define NFC_PROTO_MIFARE 2
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#define NFC_PROTO_FELICA 3
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#define NFC_PROTO_ISO14443 4
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#define NFC_PROTO_NFC_DEP 5
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#define NFC_PROTO_ISO14443_B 6
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#define NFC_PROTO_MAX 7
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/* NFC communication modes */
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#define NFC_COMM_ACTIVE 0
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#define NFC_COMM_PASSIVE 1
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/* NFC RF modes */
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#define NFC_RF_INITIATOR 0
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#define NFC_RF_TARGET 1
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#define NFC_RF_NONE 2
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/* NFC protocols masks used in bitsets */
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#define NFC_PROTO_JEWEL_MASK (1 << NFC_PROTO_JEWEL)
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#define NFC_PROTO_MIFARE_MASK (1 << NFC_PROTO_MIFARE)
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#define NFC_PROTO_FELICA_MASK (1 << NFC_PROTO_FELICA)
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#define NFC_PROTO_ISO14443_MASK (1 << NFC_PROTO_ISO14443)
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#define NFC_PROTO_NFC_DEP_MASK (1 << NFC_PROTO_NFC_DEP)
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#define NFC_PROTO_ISO14443_B_MASK (1 << NFC_PROTO_ISO14443_B)
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struct sockaddr_nfc {
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sa_family_t sa_family;
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__u32 dev_idx;
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__u32 target_idx;
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__u32 nfc_protocol;
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};
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#define NFC_LLCP_MAX_SERVICE_NAME 63
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struct sockaddr_nfc_llcp {
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sa_family_t sa_family;
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__u32 dev_idx;
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__u32 target_idx;
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__u32 nfc_protocol;
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__u8 dsap; /* Destination SAP, if known */
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__u8 ssap; /* Source SAP to be bound to */
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char service_name[NFC_LLCP_MAX_SERVICE_NAME]; /* Service name URI */;
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size_t service_name_len;
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};
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/* NFC socket protocols */
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#define NFC_SOCKPROTO_RAW 0
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#define NFC_SOCKPROTO_LLCP 1
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#define NFC_SOCKPROTO_MAX 2
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#define NFC_HEADER_SIZE 1
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/**
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* Pseudo-header info for raw socket packets
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* First byte is the adapter index
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* Second byte contains flags
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* - 0x01 - Direction (0=RX, 1=TX)
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* - 0x02-0x80 - Reserved
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**/
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#define NFC_LLCP_RAW_HEADER_SIZE 2
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#define NFC_LLCP_DIRECTION_RX 0x00
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#define NFC_LLCP_DIRECTION_TX 0x01
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#endif /*__LINUX_NFC_H */
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