* 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/if_arp.h>
-#include <linux/netdevice.h>
-#include <net/netlink.h>
#include <net/genetlink.h>
#include <linux/nl802154.h>
-#include <net/ieee802154/af_ieee802154.h>
-#include <net/ieee802154/nl802154.h>
-#include <net/ieee802154/netdevice.h>
+
+#include "ieee802154.h"
static unsigned int ieee802154_seq_num;
+static DEFINE_SPINLOCK(ieee802154_seq_lock);
-static struct genl_family ieee802154_coordinator_family = {
+struct genl_family nl802154_family = {
.id = GENL_ID_GENERATE,
.hdrsize = 0,
.name = IEEE802154_NL_NAME,
.maxattr = IEEE802154_ATTR_MAX,
};
-static struct genl_multicast_group ieee802154_coord_mcgrp = {
- .name = IEEE802154_MCAST_COORD_NAME,
-};
-
-static struct genl_multicast_group ieee802154_beacon_mcgrp = {
- .name = IEEE802154_MCAST_BEACON_NAME,
-};
-
/* Requests to userspace */
-static struct sk_buff *ieee802154_nl_create(int flags, u8 req)
+struct sk_buff *ieee802154_nl_create(int flags, u8 req)
{
void *hdr;
struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+ unsigned long f;
if (!msg)
return NULL;
+ spin_lock_irqsave(&ieee802154_seq_lock, f);
hdr = genlmsg_put(msg, 0, ieee802154_seq_num++,
- &ieee802154_coordinator_family, flags, req);
+ &nl802154_family, flags, req);
+ spin_unlock_irqrestore(&ieee802154_seq_lock, f);
if (!hdr) {
nlmsg_free(msg);
return NULL;
return msg;
}
-static int ieee802154_nl_finish(struct sk_buff *msg)
+int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
{
/* XXX: nlh is right at the start of msg */
void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
- if (!genlmsg_end(msg, hdr))
+ if (genlmsg_end(msg, hdr) < 0)
goto out;
- return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id,
- GFP_ATOMIC);
+ return genlmsg_multicast(msg, 0, group, GFP_ATOMIC);
out:
nlmsg_free(msg);
return -ENOBUFS;
}
-int ieee802154_nl_assoc_indic(struct net_device *dev,
- struct ieee802154_addr *addr, u8 cap)
-{
- struct sk_buff *msg;
-
- pr_debug("%s\n", __func__);
-
- if (addr->addr_type != IEEE802154_ADDR_LONG) {
- pr_err("%s: received non-long source address!\n", __func__);
- return -EINVAL;
- }
-
- msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC);
- if (!msg)
- return -ENOBUFS;
-
- NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
- NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
- NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
- dev->dev_addr);
-
- NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
- addr->hwaddr);
-
- NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap);
-
- return ieee802154_nl_finish(msg);
-
-nla_put_failure:
- nlmsg_free(msg);
- return -ENOBUFS;
-}
-EXPORT_SYMBOL(ieee802154_nl_assoc_indic);
-
-int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr,
- u8 status)
-{
- struct sk_buff *msg;
-
- pr_debug("%s\n", __func__);
-
- msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF);
- if (!msg)
- return -ENOBUFS;
-
- NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
- NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
- NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
- dev->dev_addr);
-
- NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr);
- NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
-
- return ieee802154_nl_finish(msg);
-
-nla_put_failure:
- nlmsg_free(msg);
- return -ENOBUFS;
-}
-EXPORT_SYMBOL(ieee802154_nl_assoc_confirm);
-
-int ieee802154_nl_disassoc_indic(struct net_device *dev,
- struct ieee802154_addr *addr, u8 reason)
+struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
+ int flags, u8 req)
{
- struct sk_buff *msg;
-
- pr_debug("%s\n", __func__);
-
- msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC);
- if (!msg)
- return -ENOBUFS;
-
- NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
- NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
- NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
- dev->dev_addr);
-
- if (addr->addr_type == IEEE802154_ADDR_LONG)
- NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
- addr->hwaddr);
- else
- NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR,
- addr->short_addr);
-
- NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason);
-
- return ieee802154_nl_finish(msg);
-
-nla_put_failure:
- nlmsg_free(msg);
- return -ENOBUFS;
-}
-EXPORT_SYMBOL(ieee802154_nl_disassoc_indic);
-
-int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status)
-{
- struct sk_buff *msg;
-
- pr_debug("%s\n", __func__);
-
- msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF);
- if (!msg)
- return -ENOBUFS;
-
- NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
- NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
- NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
- dev->dev_addr);
-
- NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
-
- return ieee802154_nl_finish(msg);
-
-nla_put_failure:
- nlmsg_free(msg);
- return -ENOBUFS;
-}
-EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm);
-
-int ieee802154_nl_beacon_indic(struct net_device *dev,
- u16 panid, u16 coord_addr)
-{
- struct sk_buff *msg;
-
- pr_debug("%s\n", __func__);
-
- msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC);
- if (!msg)
- return -ENOBUFS;
-
- NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
- NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
- NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
- dev->dev_addr);
- NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr);
- NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid);
-
- return ieee802154_nl_finish(msg);
-
-nla_put_failure:
- nlmsg_free(msg);
- return -ENOBUFS;
-}
-EXPORT_SYMBOL(ieee802154_nl_beacon_indic);
-
-int ieee802154_nl_scan_confirm(struct net_device *dev,
- u8 status, u8 scan_type, u32 unscanned,
- u8 *edl/* , struct list_head *pan_desc_list */)
-{
- struct sk_buff *msg;
-
- pr_debug("%s\n", __func__);
+ void *hdr;
+ struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
- msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF);
if (!msg)
- return -ENOBUFS;
-
- NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
- NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
- NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
- dev->dev_addr);
-
- NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
- NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type);
- NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned);
-
- if (edl)
- NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl);
-
- return ieee802154_nl_finish(msg);
-
-nla_put_failure:
- nlmsg_free(msg);
- return -ENOBUFS;
-}
-EXPORT_SYMBOL(ieee802154_nl_scan_confirm);
-
-/* Requests from userspace */
-static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
-{
- struct net_device *dev;
-
- if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
- char name[IFNAMSIZ + 1];
- nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
- sizeof(name));
- dev = dev_get_by_name(&init_net, name);
- } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX])
- dev = dev_get_by_index(&init_net,
- nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
- else
return NULL;
- if (!dev)
- return NULL;
-
- if (dev->type != ARPHRD_IEEE802154) {
- dev_put(dev);
+ hdr = genlmsg_put_reply(msg, info,
+ &nl802154_family, flags, req);
+ if (!hdr) {
+ nlmsg_free(msg);
return NULL;
}
- return dev;
-}
-
-static int ieee802154_associate_req(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct net_device *dev;
- struct ieee802154_addr addr;
- int ret = -EINVAL;
-
- if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
- !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
- (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
- !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
- !info->attrs[IEEE802154_ATTR_CAPABILITY])
- return -EINVAL;
-
- dev = ieee802154_nl_get_dev(info);
- if (!dev)
- return -ENODEV;
-
- if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
- addr.addr_type = IEEE802154_ADDR_LONG;
- nla_memcpy(addr.hwaddr,
- info->attrs[IEEE802154_ATTR_COORD_HW_ADDR],
- IEEE802154_ADDR_LEN);
- } else {
- addr.addr_type = IEEE802154_ADDR_SHORT;
- addr.short_addr = nla_get_u16(
- info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
- }
- addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
-
- ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
- nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
- nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
-
- dev_put(dev);
- return ret;
-}
-
-static int ieee802154_associate_resp(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct net_device *dev;
- struct ieee802154_addr addr;
- int ret = -EINVAL;
-
- if (!info->attrs[IEEE802154_ATTR_STATUS] ||
- !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
- !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
- return -EINVAL;
-
- dev = ieee802154_nl_get_dev(info);
- if (!dev)
- return -ENODEV;
-
- addr.addr_type = IEEE802154_ADDR_LONG;
- nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
- IEEE802154_ADDR_LEN);
- addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
-
-
- ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
- nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
- nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
-
- dev_put(dev);
- return ret;
-}
-
-static int ieee802154_disassociate_req(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct net_device *dev;
- struct ieee802154_addr addr;
- int ret = -EINVAL;
-
- if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
- !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
- !info->attrs[IEEE802154_ATTR_REASON])
- return -EINVAL;
-
- dev = ieee802154_nl_get_dev(info);
- if (!dev)
- return -ENODEV;
-
- if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
- addr.addr_type = IEEE802154_ADDR_LONG;
- nla_memcpy(addr.hwaddr,
- info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
- IEEE802154_ADDR_LEN);
- } else {
- addr.addr_type = IEEE802154_ADDR_SHORT;
- addr.short_addr = nla_get_u16(
- info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
- }
- addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
-
- ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
- nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
-
- dev_put(dev);
- return ret;
-}
-
-/*
- * PANid, channel, beacon_order = 15, superframe_order = 15,
- * PAN_coordinator, battery_life_extension = 0,
- * coord_realignment = 0, security_enable = 0
-*/
-static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
-{
- struct net_device *dev;
- struct ieee802154_addr addr;
-
- u8 channel, bcn_ord, sf_ord;
- int pan_coord, blx, coord_realign;
- int ret;
-
- if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
- !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
- !info->attrs[IEEE802154_ATTR_CHANNEL] ||
- !info->attrs[IEEE802154_ATTR_BCN_ORD] ||
- !info->attrs[IEEE802154_ATTR_SF_ORD] ||
- !info->attrs[IEEE802154_ATTR_PAN_COORD] ||
- !info->attrs[IEEE802154_ATTR_BAT_EXT] ||
- !info->attrs[IEEE802154_ATTR_COORD_REALIGN]
- )
- return -EINVAL;
-
- dev = ieee802154_nl_get_dev(info);
- if (!dev)
- return -ENODEV;
-
- addr.addr_type = IEEE802154_ADDR_SHORT;
- addr.short_addr = nla_get_u16(
- info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
- addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
-
- channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
- bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
- sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
- pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
- blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
- coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
-
- ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel,
- bcn_ord, sf_ord, pan_coord, blx, coord_realign);
-
- dev_put(dev);
- return ret;
+ return msg;
}
-static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
+int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info)
{
- struct net_device *dev;
- int ret;
- u8 type;
- u32 channels;
- u8 duration;
-
- if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
- !info->attrs[IEEE802154_ATTR_CHANNELS] ||
- !info->attrs[IEEE802154_ATTR_DURATION])
- return -EINVAL;
-
- dev = ieee802154_nl_get_dev(info);
- if (!dev)
- return -ENODEV;
-
- type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
- channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
- duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
+ /* XXX: nlh is right at the start of msg */
+ void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
- ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels,
- duration);
+ if (genlmsg_end(msg, hdr) < 0)
+ goto out;
- dev_put(dev);
- return ret;
+ return genlmsg_reply(msg, info);
+out:
+ nlmsg_free(msg);
+ return -ENOBUFS;
}
-#define IEEE802154_OP(_cmd, _func) \
- { \
- .cmd = _cmd, \
- .policy = ieee802154_policy, \
- .doit = _func, \
- .dumpit = NULL, \
- .flags = GENL_ADMIN_PERM, \
- }
-
-static struct genl_ops ieee802154_coordinator_ops[] = {
- 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),
-};
-
-static int __init ieee802154_nl_init(void)
+int __init ieee802154_nl_init(void)
{
int rc;
- int i;
- rc = genl_register_family(&ieee802154_coordinator_family);
+ rc = genl_register_family(&nl802154_family);
if (rc)
goto fail;
- rc = genl_register_mc_group(&ieee802154_coordinator_family,
- &ieee802154_coord_mcgrp);
+ rc = nl802154_mac_register();
if (rc)
goto fail;
- rc = genl_register_mc_group(&ieee802154_coordinator_family,
- &ieee802154_beacon_mcgrp);
+ rc = nl802154_phy_register();
if (rc)
goto fail;
-
- for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) {
- rc = genl_register_ops(&ieee802154_coordinator_family,
- &ieee802154_coordinator_ops[i]);
- if (rc)
- goto fail;
- }
-
return 0;
fail:
- genl_unregister_family(&ieee802154_coordinator_family);
+ genl_unregister_family(&nl802154_family);
return rc;
}
-module_init(ieee802154_nl_init);
-static void __exit ieee802154_nl_exit(void)
+void __exit ieee802154_nl_exit(void)
{
- genl_unregister_family(&ieee802154_coordinator_family);
+ genl_unregister_family(&nl802154_family);
}
-module_exit(ieee802154_nl_exit);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff