cregit-Linux how code gets into the kernel

Release 4.8 net/ieee802154/netlink.c

Directory: net/ieee802154
/*
 * Netlink interface for IEEE 802.15.4 stack
 *
 * Copyright 2007, 2008 Siemens AG
 *
 * 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.
 *
 * Written by:
 * Sergey Lapin <slapin@ossfans.org>
 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
 * Maxim Osipov <maxim.osipov@siemens.com>
 */

#include <linux/kernel.h>
#include <linux/gfp.h>
#include <net/genetlink.h>
#include <linux/nl802154.h>

#include "ieee802154.h"


static unsigned int ieee802154_seq_num;
static DEFINE_SPINLOCK(ieee802154_seq_lock);


struct genl_family nl802154_family = {
	.id		= GENL_ID_GENERATE,
	.hdrsize	= 0,
	.name		= IEEE802154_NL_NAME,
	.version	= 1,
	.maxattr	= IEEE802154_ATTR_MAX,
};

/* Requests to userspace */



struct sk_buff *ieee802154_nl_create(int flags, u8 req)
{
	void *hdr;
	struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
	unsigned long f;

	if (!msg)
		return NULL;

	spin_lock_irqsave(&ieee802154_seq_lock, f);
	hdr = genlmsg_put(msg, 0, ieee802154_seq_num++,
			  &nl802154_family, flags, req);
	spin_unlock_irqrestore(&ieee802154_seq_lock, f);
	if (!hdr) {
		nlmsg_free(msg);
		return NULL;
	}

	return msg;
}


Contributors
PersonTokensPropCommitsCommitProp
sergey lapinsergey lapin7276.60%125.00%


dmitry eremin-baryshkovdmitry eremin-baryshkov2122.34%250.00%


thomas grafthomas graf11.06%125.00%


Total94100.00%4100.00%






int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
{
	struct nlmsghdr *nlh = nlmsg_hdr(msg);
	void *hdr = genlmsg_data(nlmsg_data(nlh));

	genlmsg_end(msg, hdr);

	return genlmsg_multicast(&nl802154_family, msg, 0, group, GFP_ATOMIC);
}


Contributors
PersonTokensPropCommitsCommitProp
sergey lapinsergey lapin3662.07%116.67%


hong zhi guohong zhi guo1220.69%233.33%


dmitry eremin-baryshkovdmitry eremin-baryshkov610.34%116.67%


johannes bergjohannes berg46.90%233.33%


Total58100.00%6100.00%






struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
					int flags, u8 req)
{
	void *hdr;
	struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);

	if (!msg)
		return NULL;

	hdr = genlmsg_put_reply(msg, info,
				&nl802154_family, flags, req);
	if (!hdr) {
		nlmsg_free(msg);
		return NULL;
	}

	return msg;
}


Contributors
PersonTokensPropCommitsCommitProp
dmitry eremin-baryshkovdmitry eremin-baryshkov7598.68%150.00%


thomas grafthomas graf11.32%150.00%


Total76100.00%2100.00%






int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info)
{
	struct nlmsghdr *nlh = nlmsg_hdr(msg);
	void *hdr = genlmsg_data(nlmsg_data(nlh));

	genlmsg_end(msg, hdr);

	return genlmsg_reply(msg, info);
}


Contributors
PersonTokensPropCommitsCommitProp
dmitry eremin-baryshkovdmitry eremin-baryshkov3975.00%125.00%


hong zhi guohong zhi guo1223.08%250.00%


johannes bergjohannes berg11.92%125.00%


Total52100.00%4100.00%




static const struct genl_ops ieee8021154_ops[] = {
	/* see nl-phy.c */
	IEEE802154_DUMP(IEEE802154_LIST_PHY, ieee802154_list_phy,
			ieee802154_dump_phy),
	IEEE802154_OP(IEEE802154_ADD_IFACE, ieee802154_add_iface),
	IEEE802154_OP(IEEE802154_DEL_IFACE, ieee802154_del_iface),
	/* see nl-mac.c */
	IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
	IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
	IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
	IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
	IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
	IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface,
			ieee802154_dump_iface),
	IEEE802154_OP(IEEE802154_SET_MACPARAMS, ieee802154_set_macparams),
	IEEE802154_OP(IEEE802154_LLSEC_GETPARAMS, ieee802154_llsec_getparams),
	IEEE802154_OP(IEEE802154_LLSEC_SETPARAMS, ieee802154_llsec_setparams),
	IEEE802154_DUMP(IEEE802154_LLSEC_LIST_KEY, NULL,
			ieee802154_llsec_dump_keys),
	IEEE802154_OP(IEEE802154_LLSEC_ADD_KEY, ieee802154_llsec_add_key),
	IEEE802154_OP(IEEE802154_LLSEC_DEL_KEY, ieee802154_llsec_del_key),
	IEEE802154_DUMP(IEEE802154_LLSEC_LIST_DEV, NULL,
			ieee802154_llsec_dump_devs),
	IEEE802154_OP(IEEE802154_LLSEC_ADD_DEV, ieee802154_llsec_add_dev),
	IEEE802154_OP(IEEE802154_LLSEC_DEL_DEV, ieee802154_llsec_del_dev),
	IEEE802154_DUMP(IEEE802154_LLSEC_LIST_DEVKEY, NULL,
			ieee802154_llsec_dump_devkeys),
	IEEE802154_OP(IEEE802154_LLSEC_ADD_DEVKEY, ieee802154_llsec_add_devkey),
	IEEE802154_OP(IEEE802154_LLSEC_DEL_DEVKEY, ieee802154_llsec_del_devkey),
	IEEE802154_DUMP(IEEE802154_LLSEC_LIST_SECLEVEL, NULL,
			ieee802154_llsec_dump_seclevels),
	IEEE802154_OP(IEEE802154_LLSEC_ADD_SECLEVEL,
		      ieee802154_llsec_add_seclevel),
	IEEE802154_OP(IEEE802154_LLSEC_DEL_SECLEVEL,
		      ieee802154_llsec_del_seclevel),
};


static const struct genl_multicast_group ieee802154_mcgrps[] = {
	[IEEE802154_COORD_MCGRP] = { .name = IEEE802154_MCAST_COORD_NAME, },
	[IEEE802154_BEACON_MCGRP] = { .name = IEEE802154_MCAST_BEACON_NAME, },
};




int __init ieee802154_nl_init(void)
{
	return genl_register_family_with_ops_groups(&nl802154_family,
						    ieee8021154_ops,
						    ieee802154_mcgrps);
}


Contributors
PersonTokensPropCommitsCommitProp
johannes bergjohannes berg1052.63%250.00%


sergey lapinsergey lapin631.58%125.00%


dmitry eremin-baryshkovdmitry eremin-baryshkov315.79%125.00%


Total19100.00%4100.00%






void ieee802154_nl_exit(void)
{
	genl_unregister_family(&nl802154_family);
}

Contributors
PersonTokensPropCommitsCommitProp
sergey lapinsergey lapin1292.31%150.00%


dmitry eremin-baryshkovdmitry eremin-baryshkov17.69%150.00%


Total13100.00%2100.00%




Overall Contributors
PersonTokensPropCommitsCommitProp
sergey lapinsergey lapin17329.17%15.88%


dmitry eremin-baryshkovdmitry eremin-baryshkov15325.80%317.65%


johannes bergjohannes berg12320.74%529.41%


phoebe buckheisterphoebe buckheister11419.22%317.65%


hong zhi guohong zhi guo244.05%211.76%


tejun heotejun heo30.51%15.88%


thomas grafthomas graf20.34%15.88%


varka bhadramvarka bhadram10.17%15.88%


Total593100.00%17100.00%

  
Directory: net/ieee802154



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