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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
148 lines
4.2 KiB
C
148 lines
4.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Netlink interface for IEEE 802.15.4 stack
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*
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* Copyright 2007, 2008 Siemens AG
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*
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* Written by:
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* Sergey Lapin <slapin@ossfans.org>
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* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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* Maxim Osipov <maxim.osipov@siemens.com>
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*/
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#include <linux/kernel.h>
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#include <linux/gfp.h>
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#include <net/genetlink.h>
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#include <linux/nl802154.h>
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#include "ieee802154.h"
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static unsigned int ieee802154_seq_num;
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static DEFINE_SPINLOCK(ieee802154_seq_lock);
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/* Requests to userspace */
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struct sk_buff *ieee802154_nl_create(int flags, u8 req)
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{
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void *hdr;
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struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
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unsigned long f;
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if (!msg)
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return NULL;
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spin_lock_irqsave(&ieee802154_seq_lock, f);
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hdr = genlmsg_put(msg, 0, ieee802154_seq_num++,
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&nl802154_family, flags, req);
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spin_unlock_irqrestore(&ieee802154_seq_lock, f);
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if (!hdr) {
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nlmsg_free(msg);
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return NULL;
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}
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return msg;
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}
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int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
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{
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struct nlmsghdr *nlh = nlmsg_hdr(msg);
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void *hdr = genlmsg_data(nlmsg_data(nlh));
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genlmsg_end(msg, hdr);
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return genlmsg_multicast(&nl802154_family, msg, 0, group, GFP_ATOMIC);
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}
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struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
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int flags, u8 req)
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{
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void *hdr;
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struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
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if (!msg)
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return NULL;
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hdr = genlmsg_put_reply(msg, info,
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&nl802154_family, flags, req);
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if (!hdr) {
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nlmsg_free(msg);
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return NULL;
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}
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return msg;
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}
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int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info)
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{
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struct nlmsghdr *nlh = nlmsg_hdr(msg);
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void *hdr = genlmsg_data(nlmsg_data(nlh));
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genlmsg_end(msg, hdr);
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return genlmsg_reply(msg, info);
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}
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static const struct genl_ops ieee802154_ops[] = {
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/* see nl-phy.c */
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IEEE802154_DUMP(IEEE802154_LIST_PHY, ieee802154_list_phy,
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ieee802154_dump_phy),
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IEEE802154_OP(IEEE802154_ADD_IFACE, ieee802154_add_iface),
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IEEE802154_OP(IEEE802154_DEL_IFACE, ieee802154_del_iface),
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/* see nl-mac.c */
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IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
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IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
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IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
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IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
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IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
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IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface,
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ieee802154_dump_iface),
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IEEE802154_OP(IEEE802154_SET_MACPARAMS, ieee802154_set_macparams),
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IEEE802154_OP(IEEE802154_LLSEC_GETPARAMS, ieee802154_llsec_getparams),
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IEEE802154_OP(IEEE802154_LLSEC_SETPARAMS, ieee802154_llsec_setparams),
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IEEE802154_DUMP(IEEE802154_LLSEC_LIST_KEY, NULL,
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ieee802154_llsec_dump_keys),
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IEEE802154_OP(IEEE802154_LLSEC_ADD_KEY, ieee802154_llsec_add_key),
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IEEE802154_OP(IEEE802154_LLSEC_DEL_KEY, ieee802154_llsec_del_key),
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IEEE802154_DUMP(IEEE802154_LLSEC_LIST_DEV, NULL,
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ieee802154_llsec_dump_devs),
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IEEE802154_OP(IEEE802154_LLSEC_ADD_DEV, ieee802154_llsec_add_dev),
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IEEE802154_OP(IEEE802154_LLSEC_DEL_DEV, ieee802154_llsec_del_dev),
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IEEE802154_DUMP(IEEE802154_LLSEC_LIST_DEVKEY, NULL,
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ieee802154_llsec_dump_devkeys),
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IEEE802154_OP(IEEE802154_LLSEC_ADD_DEVKEY, ieee802154_llsec_add_devkey),
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IEEE802154_OP(IEEE802154_LLSEC_DEL_DEVKEY, ieee802154_llsec_del_devkey),
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IEEE802154_DUMP(IEEE802154_LLSEC_LIST_SECLEVEL, NULL,
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ieee802154_llsec_dump_seclevels),
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IEEE802154_OP(IEEE802154_LLSEC_ADD_SECLEVEL,
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ieee802154_llsec_add_seclevel),
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IEEE802154_OP(IEEE802154_LLSEC_DEL_SECLEVEL,
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ieee802154_llsec_del_seclevel),
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};
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static const struct genl_multicast_group ieee802154_mcgrps[] = {
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[IEEE802154_COORD_MCGRP] = { .name = IEEE802154_MCAST_COORD_NAME, },
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[IEEE802154_BEACON_MCGRP] = { .name = IEEE802154_MCAST_BEACON_NAME, },
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};
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struct genl_family nl802154_family __ro_after_init = {
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.hdrsize = 0,
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.name = IEEE802154_NL_NAME,
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.version = 1,
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.maxattr = IEEE802154_ATTR_MAX,
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.policy = ieee802154_policy,
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.module = THIS_MODULE,
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.ops = ieee802154_ops,
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.n_ops = ARRAY_SIZE(ieee802154_ops),
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.mcgrps = ieee802154_mcgrps,
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.n_mcgrps = ARRAY_SIZE(ieee802154_mcgrps),
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};
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int __init ieee802154_nl_init(void)
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{
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return genl_register_family(&nl802154_family);
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}
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void ieee802154_nl_exit(void)
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{
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genl_unregister_family(&nl802154_family);
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}
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