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147 lines
4.3 KiB
147 lines
4.3 KiB
// 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 <[email protected]> |
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* Dmitry Eremin-Solenikov <[email protected]> |
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* Maxim Osipov <[email protected]> |
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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_small_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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.small_ops = ieee802154_ops, |
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.n_small_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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