2019-05-27 06:55:21 +00:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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2009-06-08 12:18:48 +00:00
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/*
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* An interface between IEEE802.15.4 device and rest of the kernel.
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*
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2012-05-15 20:50:23 +00:00
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* Copyright (C) 2007-2012 Siemens AG
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2009-06-08 12:18:48 +00:00
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*
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* Written by:
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* Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
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* Maxim Gorbachyov <maxim.gorbachev@siemens.com>
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* Maxim Osipov <maxim.osipov@siemens.com>
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* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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2012-05-15 20:50:23 +00:00
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* Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
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2009-06-08 12:18:48 +00:00
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*/
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#ifndef IEEE802154_NETDEVICE_H
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#define IEEE802154_NETDEVICE_H
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2022-09-08 12:19:27 +00:00
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#define IEEE802154_REQUIRED_SIZE(struct_type, member) \
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(offsetof(typeof(struct_type), member) + \
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sizeof(((typeof(struct_type) *)(NULL))->member))
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#define IEEE802154_ADDR_OFFSET \
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offsetof(typeof(struct sockaddr_ieee802154), addr)
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#define IEEE802154_MIN_NAMELEN (IEEE802154_ADDR_OFFSET + \
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IEEE802154_REQUIRED_SIZE(struct ieee802154_addr_sa, addr_type))
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#define IEEE802154_NAMELEN_SHORT (IEEE802154_ADDR_OFFSET + \
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IEEE802154_REQUIRED_SIZE(struct ieee802154_addr_sa, short_addr))
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#define IEEE802154_NAMELEN_LONG (IEEE802154_ADDR_OFFSET + \
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IEEE802154_REQUIRED_SIZE(struct ieee802154_addr_sa, hwaddr))
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2012-05-15 20:50:21 +00:00
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#include <net/af_ieee802154.h>
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2014-03-14 20:24:00 +00:00
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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2014-10-25 07:41:04 +00:00
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#include <linux/ieee802154.h>
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2014-03-14 20:24:00 +00:00
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2014-12-10 14:33:12 +00:00
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#include <net/cfg802154.h>
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2023-01-03 16:56:40 +00:00
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struct ieee802154_beacon_hdr {
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#if defined(__LITTLE_ENDIAN_BITFIELD)
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u16 beacon_order:4,
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superframe_order:4,
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final_cap_slot:4,
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battery_life_ext:1,
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reserved0:1,
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pan_coordinator:1,
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assoc_permit:1;
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u8 gts_count:3,
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gts_reserved:4,
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gts_permit:1;
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u8 pend_short_addr_count:3,
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reserved1:1,
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pend_ext_addr_count:3,
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reserved2:1;
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#elif defined(__BIG_ENDIAN_BITFIELD)
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u16 assoc_permit:1,
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pan_coordinator:1,
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reserved0:1,
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battery_life_ext:1,
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final_cap_slot:4,
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superframe_order:4,
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beacon_order:4;
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u8 gts_permit:1,
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gts_reserved:4,
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gts_count:3;
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u8 reserved2:1,
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pend_ext_addr_count:3,
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reserved1:1,
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pend_short_addr_count:3;
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#else
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#error "Please fix <asm/byteorder.h>"
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#endif
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} __packed;
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2014-03-14 20:24:00 +00:00
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struct ieee802154_sechdr {
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#if defined(__LITTLE_ENDIAN_BITFIELD)
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u8 level:3,
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key_id_mode:2,
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reserved:3;
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#elif defined(__BIG_ENDIAN_BITFIELD)
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u8 reserved:3,
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key_id_mode:2,
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level:3;
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#else
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#error "Please fix <asm/byteorder.h>"
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#endif
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u8 key_id;
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__le32 frame_counter;
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union {
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__le32 short_src;
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__le64 extended_src;
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};
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};
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2012-05-15 20:50:21 +00:00
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2014-03-14 20:24:00 +00:00
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struct ieee802154_hdr_fc {
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#if defined(__LITTLE_ENDIAN_BITFIELD)
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u16 type:3,
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security_enabled:1,
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frame_pending:1,
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ack_request:1,
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intra_pan:1,
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reserved:3,
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dest_addr_mode:2,
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version:2,
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source_addr_mode:2;
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#elif defined(__BIG_ENDIAN_BITFIELD)
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u16 reserved:1,
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intra_pan:1,
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ack_request:1,
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frame_pending:1,
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security_enabled:1,
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type:3,
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source_addr_mode:2,
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version:2,
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dest_addr_mode:2,
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reserved2:2;
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#else
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#error "Please fix <asm/byteorder.h>"
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#endif
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};
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2022-10-07 08:53:07 +00:00
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enum ieee802154_frame_version {
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IEEE802154_2003_STD,
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IEEE802154_2006_STD,
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IEEE802154_STD,
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IEEE802154_RESERVED_STD,
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IEEE802154_MULTIPURPOSE_STD = IEEE802154_2003_STD,
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};
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2014-03-14 20:24:00 +00:00
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struct ieee802154_hdr {
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struct ieee802154_hdr_fc fc;
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u8 seq;
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struct ieee802154_addr source;
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struct ieee802154_addr dest;
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struct ieee802154_sechdr sec;
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};
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/* pushes hdr onto the skb. fields of hdr->fc that can be calculated from
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* the contents of hdr will be, and the actual value of those bits in
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* hdr->fc will be ignored. this includes the INTRA_PAN bit and the frame
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* version, if SECEN is set.
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*/
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2015-09-18 09:30:41 +00:00
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int ieee802154_hdr_push(struct sk_buff *skb, struct ieee802154_hdr *hdr);
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2014-03-14 20:24:00 +00:00
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/* pulls the entire 802.15.4 header off of the skb, including the security
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* header, and performs pan id decompression
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*/
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int ieee802154_hdr_pull(struct sk_buff *skb, struct ieee802154_hdr *hdr);
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/* parses the frame control, sequence number of address fields in a given skb
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* and stores them into hdr, performing pan id decompression and length checks
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* to be suitable for use in header_ops.parse
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*/
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int ieee802154_hdr_peek_addrs(const struct sk_buff *skb,
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struct ieee802154_hdr *hdr);
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2014-05-14 15:43:06 +00:00
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/* parses the full 802.15.4 header a given skb and stores them into hdr,
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* performing pan id decompression and length checks to be suitable for use in
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* header_ops.parse
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*/
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int ieee802154_hdr_peek(const struct sk_buff *skb, struct ieee802154_hdr *hdr);
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int ieee802154_max_payload(const struct ieee802154_hdr *hdr);
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static inline int
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ieee802154_sechdr_authtag_len(const struct ieee802154_sechdr *sec)
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{
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switch (sec->level) {
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case IEEE802154_SCF_SECLEVEL_MIC32:
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case IEEE802154_SCF_SECLEVEL_ENC_MIC32:
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return 4;
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case IEEE802154_SCF_SECLEVEL_MIC64:
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case IEEE802154_SCF_SECLEVEL_ENC_MIC64:
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return 8;
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case IEEE802154_SCF_SECLEVEL_MIC128:
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case IEEE802154_SCF_SECLEVEL_ENC_MIC128:
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return 16;
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case IEEE802154_SCF_SECLEVEL_NONE:
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case IEEE802154_SCF_SECLEVEL_ENC:
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default:
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return 0;
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}
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}
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2014-03-14 20:24:00 +00:00
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static inline int ieee802154_hdr_length(struct sk_buff *skb)
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{
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struct ieee802154_hdr hdr;
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int len = ieee802154_hdr_pull(skb, &hdr);
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if (len > 0)
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skb_push(skb, len);
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return len;
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}
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2014-03-14 20:23:58 +00:00
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static inline bool ieee802154_addr_equal(const struct ieee802154_addr *a1,
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const struct ieee802154_addr *a2)
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{
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if (a1->pan_id != a2->pan_id || a1->mode != a2->mode)
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return false;
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if ((a1->mode == IEEE802154_ADDR_LONG &&
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a1->extended_addr != a2->extended_addr) ||
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(a1->mode == IEEE802154_ADDR_SHORT &&
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a1->short_addr != a2->short_addr))
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return false;
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return true;
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}
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static inline __le64 ieee802154_devaddr_from_raw(const void *raw)
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{
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u64 temp;
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memcpy(&temp, raw, IEEE802154_ADDR_LEN);
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return (__force __le64)swab64(temp);
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}
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static inline void ieee802154_devaddr_to_raw(void *raw, __le64 addr)
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{
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u64 temp = swab64((__force u64)addr);
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memcpy(raw, &temp, IEEE802154_ADDR_LEN);
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}
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2022-09-08 12:19:27 +00:00
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static inline int
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ieee802154_sockaddr_check_size(struct sockaddr_ieee802154 *daddr, int len)
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{
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struct ieee802154_addr_sa *sa;
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2022-10-06 02:02:37 +00:00
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int ret = 0;
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2022-09-08 12:19:27 +00:00
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sa = &daddr->addr;
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if (len < IEEE802154_MIN_NAMELEN)
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return -EINVAL;
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switch (sa->addr_type) {
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2022-10-06 02:02:37 +00:00
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case IEEE802154_ADDR_NONE:
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break;
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2022-09-08 12:19:27 +00:00
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case IEEE802154_ADDR_SHORT:
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if (len < IEEE802154_NAMELEN_SHORT)
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2022-10-06 02:02:37 +00:00
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ret = -EINVAL;
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2022-09-08 12:19:27 +00:00
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break;
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case IEEE802154_ADDR_LONG:
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if (len < IEEE802154_NAMELEN_LONG)
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2022-10-06 02:02:37 +00:00
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ret = -EINVAL;
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break;
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default:
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ret = -EINVAL;
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2022-09-08 12:19:27 +00:00
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break;
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}
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2022-10-06 02:02:37 +00:00
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return ret;
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2022-09-08 12:19:27 +00:00
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}
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2014-03-14 20:23:58 +00:00
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static inline void ieee802154_addr_from_sa(struct ieee802154_addr *a,
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const struct ieee802154_addr_sa *sa)
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{
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a->mode = sa->addr_type;
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a->pan_id = cpu_to_le16(sa->pan_id);
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switch (a->mode) {
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case IEEE802154_ADDR_SHORT:
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a->short_addr = cpu_to_le16(sa->short_addr);
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break;
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case IEEE802154_ADDR_LONG:
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a->extended_addr = ieee802154_devaddr_from_raw(sa->hwaddr);
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break;
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}
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}
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static inline void ieee802154_addr_to_sa(struct ieee802154_addr_sa *sa,
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const struct ieee802154_addr *a)
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{
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sa->addr_type = a->mode;
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sa->pan_id = le16_to_cpu(a->pan_id);
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switch (a->mode) {
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case IEEE802154_ADDR_SHORT:
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sa->short_addr = le16_to_cpu(a->short_addr);
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break;
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case IEEE802154_ADDR_LONG:
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ieee802154_devaddr_to_raw(sa->hwaddr, a->extended_addr);
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break;
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}
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}
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2009-06-08 12:18:48 +00:00
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/*
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* A control block of skb passed between the ARPHRD_IEEE802154 device
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* and other stack parts.
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*/
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struct ieee802154_mac_cb {
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u8 lqi;
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2014-05-14 15:43:08 +00:00
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u8 type;
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bool ackreq;
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bool secen;
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2014-05-16 15:46:40 +00:00
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bool secen_override;
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u8 seclevel;
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bool seclevel_override;
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2014-03-14 20:24:02 +00:00
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struct ieee802154_addr source;
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struct ieee802154_addr dest;
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2009-06-08 12:18:48 +00:00
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};
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static inline struct ieee802154_mac_cb *mac_cb(struct sk_buff *skb)
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{
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return (struct ieee802154_mac_cb *)skb->cb;
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}
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2014-05-14 15:43:08 +00:00
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static inline struct ieee802154_mac_cb *mac_cb_init(struct sk_buff *skb)
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2009-06-08 12:18:48 +00:00
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{
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2014-05-14 15:43:08 +00:00
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BUILD_BUG_ON(sizeof(struct ieee802154_mac_cb) > sizeof(skb->cb));
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2009-06-08 12:18:48 +00:00
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2014-05-14 15:43:08 +00:00
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memset(skb->cb, 0, sizeof(struct ieee802154_mac_cb));
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return mac_cb(skb);
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2009-06-08 12:18:48 +00:00
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}
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2014-05-16 15:46:35 +00:00
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enum {
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IEEE802154_LLSEC_DEVKEY_IGNORE,
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IEEE802154_LLSEC_DEVKEY_RESTRICT,
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2014-05-16 15:46:45 +00:00
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IEEE802154_LLSEC_DEVKEY_RECORD,
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2014-05-16 15:46:35 +00:00
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__IEEE802154_LLSEC_DEVKEY_MAX,
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};
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2009-06-08 12:18:48 +00:00
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#define IEEE802154_MAC_SCAN_ED 0
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#define IEEE802154_MAC_SCAN_ACTIVE 1
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#define IEEE802154_MAC_SCAN_PASSIVE 2
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#define IEEE802154_MAC_SCAN_ORPHAN 3
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2014-03-31 19:37:46 +00:00
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struct ieee802154_mac_params {
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s8 transmit_power;
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u8 min_be;
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u8 max_be;
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u8 csma_retries;
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s8 frame_retries;
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bool lbt;
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2014-12-10 14:33:12 +00:00
|
|
|
struct wpan_phy_cca cca;
|
2014-03-31 19:37:46 +00:00
|
|
|
s32 cca_ed_level;
|
|
|
|
};
|
|
|
|
|
2009-11-04 14:53:23 +00:00
|
|
|
struct wpan_phy;
|
2014-05-16 15:46:35 +00:00
|
|
|
|
|
|
|
enum {
|
2015-06-12 03:43:49 +00:00
|
|
|
IEEE802154_LLSEC_PARAM_ENABLED = BIT(0),
|
|
|
|
IEEE802154_LLSEC_PARAM_FRAME_COUNTER = BIT(1),
|
|
|
|
IEEE802154_LLSEC_PARAM_OUT_LEVEL = BIT(2),
|
|
|
|
IEEE802154_LLSEC_PARAM_OUT_KEY = BIT(3),
|
|
|
|
IEEE802154_LLSEC_PARAM_KEY_SOURCE = BIT(4),
|
|
|
|
IEEE802154_LLSEC_PARAM_PAN_ID = BIT(5),
|
|
|
|
IEEE802154_LLSEC_PARAM_HWADDR = BIT(6),
|
|
|
|
IEEE802154_LLSEC_PARAM_COORD_HWADDR = BIT(7),
|
|
|
|
IEEE802154_LLSEC_PARAM_COORD_SHORTADDR = BIT(8),
|
2014-05-16 15:46:35 +00:00
|
|
|
};
|
|
|
|
|
2014-05-16 15:46:42 +00:00
|
|
|
struct ieee802154_llsec_ops {
|
|
|
|
int (*get_params)(struct net_device *dev,
|
|
|
|
struct ieee802154_llsec_params *params);
|
|
|
|
int (*set_params)(struct net_device *dev,
|
|
|
|
const struct ieee802154_llsec_params *params,
|
|
|
|
int changed);
|
|
|
|
|
|
|
|
int (*add_key)(struct net_device *dev,
|
|
|
|
const struct ieee802154_llsec_key_id *id,
|
|
|
|
const struct ieee802154_llsec_key *key);
|
|
|
|
int (*del_key)(struct net_device *dev,
|
|
|
|
const struct ieee802154_llsec_key_id *id);
|
|
|
|
|
|
|
|
int (*add_dev)(struct net_device *dev,
|
|
|
|
const struct ieee802154_llsec_device *llsec_dev);
|
|
|
|
int (*del_dev)(struct net_device *dev, __le64 dev_addr);
|
|
|
|
|
|
|
|
int (*add_devkey)(struct net_device *dev,
|
|
|
|
__le64 device_addr,
|
|
|
|
const struct ieee802154_llsec_device_key *key);
|
|
|
|
int (*del_devkey)(struct net_device *dev,
|
|
|
|
__le64 device_addr,
|
|
|
|
const struct ieee802154_llsec_device_key *key);
|
|
|
|
|
|
|
|
int (*add_seclevel)(struct net_device *dev,
|
|
|
|
const struct ieee802154_llsec_seclevel *sl);
|
|
|
|
int (*del_seclevel)(struct net_device *dev,
|
|
|
|
const struct ieee802154_llsec_seclevel *sl);
|
|
|
|
|
|
|
|
void (*lock_table)(struct net_device *dev);
|
|
|
|
void (*get_table)(struct net_device *dev,
|
|
|
|
struct ieee802154_llsec_table **t);
|
|
|
|
void (*unlock_table)(struct net_device *dev);
|
|
|
|
};
|
2009-06-08 12:18:48 +00:00
|
|
|
/*
|
|
|
|
* This should be located at net_device->ml_priv
|
2009-11-04 14:53:23 +00:00
|
|
|
*
|
|
|
|
* get_phy should increment the reference counting on returned phy.
|
|
|
|
* Use wpan_wpy_put to put that reference.
|
2009-06-08 12:18:48 +00:00
|
|
|
*/
|
|
|
|
struct ieee802154_mlme_ops {
|
2013-04-04 06:32:35 +00:00
|
|
|
/* The following fields are optional (can be NULL). */
|
|
|
|
|
2009-06-08 12:18:48 +00:00
|
|
|
int (*assoc_req)(struct net_device *dev,
|
2014-03-14 20:24:02 +00:00
|
|
|
struct ieee802154_addr *addr,
|
2009-08-19 15:32:24 +00:00
|
|
|
u8 channel, u8 page, u8 cap);
|
2009-06-08 12:18:48 +00:00
|
|
|
int (*assoc_resp)(struct net_device *dev,
|
2014-03-14 20:24:02 +00:00
|
|
|
struct ieee802154_addr *addr,
|
2014-03-14 20:23:59 +00:00
|
|
|
__le16 short_addr, u8 status);
|
2009-06-08 12:18:48 +00:00
|
|
|
int (*disassoc_req)(struct net_device *dev,
|
2014-03-14 20:24:02 +00:00
|
|
|
struct ieee802154_addr *addr,
|
2009-06-08 12:18:48 +00:00
|
|
|
u8 reason);
|
|
|
|
int (*start_req)(struct net_device *dev,
|
2014-03-14 20:24:02 +00:00
|
|
|
struct ieee802154_addr *addr,
|
2009-08-19 15:32:24 +00:00
|
|
|
u8 channel, u8 page, u8 bcn_ord, u8 sf_ord,
|
2009-06-08 12:18:48 +00:00
|
|
|
u8 pan_coord, u8 blx, u8 coord_realign);
|
|
|
|
int (*scan_req)(struct net_device *dev,
|
2009-08-19 15:32:24 +00:00
|
|
|
u8 type, u32 channels, u8 page, u8 duration);
|
2009-06-08 12:18:48 +00:00
|
|
|
|
2014-03-31 19:37:46 +00:00
|
|
|
int (*set_mac_params)(struct net_device *dev,
|
|
|
|
const struct ieee802154_mac_params *params);
|
|
|
|
void (*get_mac_params)(struct net_device *dev,
|
|
|
|
struct ieee802154_mac_params *params);
|
|
|
|
|
2015-12-23 21:36:32 +00:00
|
|
|
const struct ieee802154_llsec_ops *llsec;
|
2009-06-08 12:18:48 +00:00
|
|
|
};
|
|
|
|
|
2012-05-15 20:50:23 +00:00
|
|
|
static inline struct ieee802154_mlme_ops *
|
|
|
|
ieee802154_mlme_ops(const struct net_device *dev)
|
2009-06-08 12:18:48 +00:00
|
|
|
{
|
|
|
|
return dev->ml_priv;
|
|
|
|
}
|
|
|
|
|
2012-05-15 20:50:23 +00:00
|
|
|
#endif
|