diff options
Diffstat (limited to 'net/ieee802154/nl-mac.c')
| -rw-r--r-- | net/ieee802154/nl-mac.c | 1084 |
1 files changed, 990 insertions, 94 deletions
diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c index b0bdd8c51e9..a3281b8bfd5 100644 --- a/net/ieee802154/nl-mac.c +++ b/net/ieee802154/nl-mac.c @@ -39,13 +39,25 @@ #include "ieee802154.h" -static struct genl_multicast_group ieee802154_coord_mcgrp = { - .name = IEEE802154_MCAST_COORD_NAME, -}; +static int nla_put_hwaddr(struct sk_buff *msg, int type, __le64 hwaddr) +{ + return nla_put_u64(msg, type, swab64((__force u64)hwaddr)); +} -static struct genl_multicast_group ieee802154_beacon_mcgrp = { - .name = IEEE802154_MCAST_BEACON_NAME, -}; +static __le64 nla_get_hwaddr(const struct nlattr *nla) +{ + return ieee802154_devaddr_from_raw(nla_data(nla)); +} + +static int nla_put_shortaddr(struct sk_buff *msg, int type, __le16 addr) +{ + return nla_put_u16(msg, type, le16_to_cpu(addr)); +} + +static __le16 nla_get_shortaddr(const struct nlattr *nla) +{ + return cpu_to_le16(nla_get_u16(nla)); +} int ieee802154_nl_assoc_indic(struct net_device *dev, struct ieee802154_addr *addr, u8 cap) @@ -54,7 +66,7 @@ int ieee802154_nl_assoc_indic(struct net_device *dev, pr_debug("%s\n", __func__); - if (addr->addr_type != IEEE802154_ADDR_LONG) { + if (addr->mode != IEEE802154_ADDR_LONG) { pr_err("%s: received non-long source address!\n", __func__); return -EINVAL; } @@ -67,12 +79,12 @@ int ieee802154_nl_assoc_indic(struct net_device *dev, 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_hwaddr(msg, IEEE802154_ATTR_SRC_HW_ADDR, + addr->extended_addr) || nla_put_u8(msg, IEEE802154_ATTR_CAPABILITY, cap)) goto nla_put_failure; - return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); + return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP); nla_put_failure: nlmsg_free(msg); @@ -80,7 +92,7 @@ nla_put_failure: } EXPORT_SYMBOL(ieee802154_nl_assoc_indic); -int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr, +int ieee802154_nl_assoc_confirm(struct net_device *dev, __le16 short_addr, u8 status) { struct sk_buff *msg; @@ -95,10 +107,10 @@ int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr, 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_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) || nla_put_u8(msg, IEEE802154_ATTR_STATUS, status)) goto nla_put_failure; - return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); + return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP); nla_put_failure: nlmsg_free(msg); @@ -122,18 +134,18 @@ int ieee802154_nl_disassoc_indic(struct net_device *dev, nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, dev->dev_addr)) goto nla_put_failure; - if (addr->addr_type == IEEE802154_ADDR_LONG) { - if (nla_put(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, - addr->hwaddr)) + if (addr->mode == IEEE802154_ADDR_LONG) { + if (nla_put_hwaddr(msg, IEEE802154_ATTR_SRC_HW_ADDR, + addr->extended_addr)) goto nla_put_failure; } else { - if (nla_put_u16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR, - addr->short_addr)) + if (nla_put_shortaddr(msg, IEEE802154_ATTR_SRC_SHORT_ADDR, + addr->short_addr)) goto nla_put_failure; } if (nla_put_u8(msg, IEEE802154_ATTR_REASON, reason)) goto nla_put_failure; - return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); + return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP); nla_put_failure: nlmsg_free(msg); @@ -157,7 +169,7 @@ int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status) dev->dev_addr) || nla_put_u8(msg, IEEE802154_ATTR_STATUS, status)) goto nla_put_failure; - return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); + return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP); nla_put_failure: nlmsg_free(msg); @@ -165,8 +177,8 @@ nla_put_failure: } EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm); -int ieee802154_nl_beacon_indic(struct net_device *dev, - u16 panid, u16 coord_addr) +int ieee802154_nl_beacon_indic(struct net_device *dev, __le16 panid, + __le16 coord_addr) { struct sk_buff *msg; @@ -180,10 +192,11 @@ int ieee802154_nl_beacon_indic(struct net_device *dev, 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)) + nla_put_shortaddr(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, + coord_addr) || + nla_put_shortaddr(msg, IEEE802154_ATTR_COORD_PAN_ID, panid)) goto nla_put_failure; - return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); + return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP); nla_put_failure: nlmsg_free(msg); @@ -214,7 +227,7 @@ int ieee802154_nl_scan_confirm(struct net_device *dev, (edl && nla_put(msg, IEEE802154_ATTR_ED_LIST, 27, edl))) goto nla_put_failure; - return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); + return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP); nla_put_failure: nlmsg_free(msg); @@ -238,7 +251,7 @@ int ieee802154_nl_start_confirm(struct net_device *dev, u8 status) dev->dev_addr) || nla_put_u8(msg, IEEE802154_ATTR_STATUS, status)) goto nla_put_failure; - return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); + return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP); nla_put_failure: nlmsg_free(msg); @@ -251,6 +264,8 @@ static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid, { void *hdr; struct wpan_phy *phy; + struct ieee802154_mlme_ops *ops; + __le16 short_addr, pan_id; pr_debug("%s\n", __func__); @@ -259,19 +274,45 @@ static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid, if (!hdr) goto out; - phy = ieee802154_mlme_ops(dev)->get_phy(dev); + ops = ieee802154_mlme_ops(dev); + phy = ops->get_phy(dev); BUG_ON(!phy); + short_addr = ops->get_short_addr(dev); + pan_id = ops->get_pan_id(dev); + if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) || 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, - ieee802154_mlme_ops(dev)->get_short_addr(dev)) || - nla_put_u16(msg, IEEE802154_ATTR_PAN_ID, - ieee802154_mlme_ops(dev)->get_pan_id(dev))) + nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) || + nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id)) goto nla_put_failure; + + if (ops->get_mac_params) { + struct ieee802154_mac_params params; + + ops->get_mac_params(dev, ¶ms); + + if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER, + params.transmit_power) || + nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) || + nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE, + params.cca_mode) || + nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL, + params.cca_ed_level) || + nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES, + params.csma_retries) || + nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE, + params.min_be) || + nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE, + params.max_be) || + nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES, + params.frame_retries)) + goto nla_put_failure; + } + wpan_phy_put(phy); return genlmsg_end(msg, hdr); @@ -309,8 +350,7 @@ static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) return dev; } -static int ieee802154_associate_req(struct sk_buff *skb, - struct genl_info *info) +int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info) { struct net_device *dev; struct ieee802154_addr addr; @@ -331,16 +371,16 @@ static int ieee802154_associate_req(struct sk_buff *skb, goto out; 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); + addr.mode = IEEE802154_ADDR_LONG; + addr.extended_addr = nla_get_hwaddr( + info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]); } else { - addr.addr_type = IEEE802154_ADDR_SHORT; - addr.short_addr = nla_get_u16( + addr.mode = IEEE802154_ADDR_SHORT; + addr.short_addr = nla_get_shortaddr( info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); } - addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); + addr.pan_id = nla_get_shortaddr( + info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); if (info->attrs[IEEE802154_ATTR_PAGE]) page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); @@ -357,8 +397,7 @@ out: return ret; } -static int ieee802154_associate_resp(struct sk_buff *skb, - struct genl_info *info) +int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info) { struct net_device *dev; struct ieee802154_addr addr; @@ -375,14 +414,13 @@ static int ieee802154_associate_resp(struct sk_buff *skb, if (!ieee802154_mlme_ops(dev)->assoc_resp) goto out; - addr.addr_type = IEEE802154_ADDR_LONG; - nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], - IEEE802154_ADDR_LEN); + addr.mode = IEEE802154_ADDR_LONG; + addr.extended_addr = nla_get_hwaddr( + info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]); 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_shortaddr(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS])); out: @@ -390,8 +428,7 @@ out: return ret; } -static int ieee802154_disassociate_req(struct sk_buff *skb, - struct genl_info *info) +int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info) { struct net_device *dev; struct ieee802154_addr addr; @@ -409,13 +446,12 @@ static int ieee802154_disassociate_req(struct sk_buff *skb, goto out; 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); + addr.mode = IEEE802154_ADDR_LONG; + addr.extended_addr = nla_get_hwaddr( + info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]); } else { - addr.addr_type = IEEE802154_ADDR_SHORT; - addr.short_addr = nla_get_u16( + addr.mode = IEEE802154_ADDR_SHORT; + addr.short_addr = nla_get_shortaddr( info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); } addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); @@ -433,7 +469,7 @@ out: * 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) +int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) { struct net_device *dev; struct ieee802154_addr addr; @@ -460,10 +496,11 @@ static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) if (!ieee802154_mlme_ops(dev)->start_req) goto out; - addr.addr_type = IEEE802154_ADDR_SHORT; - addr.short_addr = nla_get_u16( + addr.mode = IEEE802154_ADDR_SHORT; + addr.short_addr = nla_get_shortaddr( info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); - addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); + addr.pan_id = nla_get_shortaddr( + 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]); @@ -478,7 +515,7 @@ static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) page = 0; - if (addr.short_addr == IEEE802154_ADDR_BROADCAST) { + if (addr.short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) { ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS); dev_put(dev); return -EINVAL; @@ -492,7 +529,7 @@ out: return ret; } -static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) +int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) { struct net_device *dev; int ret = -EOPNOTSUPP; @@ -530,8 +567,7 @@ out: return ret; } -static int ieee802154_list_iface(struct sk_buff *skb, - struct genl_info *info) +int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info) { /* Request for interface name, index, type, IEEE address, PAN Id, short address */ @@ -565,8 +601,7 @@ out_dev: } -static int ieee802154_dump_iface(struct sk_buff *skb, - struct netlink_callback *cb) +int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb) { struct net *net = sock_net(skb->sk); struct net_device *dev; @@ -591,40 +626,901 @@ cont: return skb->len; } -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), - IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface, - ieee802154_dump_iface), +int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info) +{ + struct net_device *dev = NULL; + struct ieee802154_mlme_ops *ops; + struct ieee802154_mac_params params; + struct wpan_phy *phy; + int rc = -EINVAL; + + pr_debug("%s\n", __func__); + + dev = ieee802154_nl_get_dev(info); + if (!dev) + return -ENODEV; + + ops = ieee802154_mlme_ops(dev); + + if (!ops->get_mac_params || !ops->set_mac_params) { + rc = -EOPNOTSUPP; + goto out; + } + + if (netif_running(dev)) { + rc = -EBUSY; + goto out; + } + + if (!info->attrs[IEEE802154_ATTR_LBT_ENABLED] && + !info->attrs[IEEE802154_ATTR_CCA_MODE] && + !info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL] && + !info->attrs[IEEE802154_ATTR_CSMA_RETRIES] && + !info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] && + !info->attrs[IEEE802154_ATTR_CSMA_MAX_BE] && + !info->attrs[IEEE802154_ATTR_FRAME_RETRIES]) + goto out; + + phy = ops->get_phy(dev); + + if ((!phy->set_lbt && info->attrs[IEEE802154_ATTR_LBT_ENABLED]) || + (!phy->set_cca_mode && info->attrs[IEEE802154_ATTR_CCA_MODE]) || + (!phy->set_cca_ed_level && + info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) || + (!phy->set_csma_params && + (info->attrs[IEEE802154_ATTR_CSMA_RETRIES] || + info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] || + info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])) || + (!phy->set_frame_retries && + info->attrs[IEEE802154_ATTR_FRAME_RETRIES])) { + rc = -EOPNOTSUPP; + goto out_phy; + } + + ops->get_mac_params(dev, ¶ms); + + if (info->attrs[IEEE802154_ATTR_TXPOWER]) + params.transmit_power = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]); + + if (info->attrs[IEEE802154_ATTR_LBT_ENABLED]) + params.lbt = nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]); + + if (info->attrs[IEEE802154_ATTR_CCA_MODE]) + params.cca_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]); + + if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) + params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]); + + if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES]) + params.csma_retries = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_RETRIES]); + + if (info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]) + params.min_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]); + + if (info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]) + params.max_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]); + + if (info->attrs[IEEE802154_ATTR_FRAME_RETRIES]) + params.frame_retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]); + + rc = ops->set_mac_params(dev, ¶ms); + + wpan_phy_put(phy); + dev_put(dev); + return rc; + +out_phy: + wpan_phy_put(phy); +out: + dev_put(dev); + return rc; +} + + + +static int +ieee802154_llsec_parse_key_id(struct genl_info *info, + struct ieee802154_llsec_key_id *desc) +{ + memset(desc, 0, sizeof(*desc)); + + if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) + return -EINVAL; + + desc->mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]); + + if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) { + if (!info->attrs[IEEE802154_ATTR_PAN_ID] && + !(info->attrs[IEEE802154_ATTR_SHORT_ADDR] || + info->attrs[IEEE802154_ATTR_HW_ADDR])) + return -EINVAL; + + desc->device_addr.pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]); + + if (info->attrs[IEEE802154_ATTR_SHORT_ADDR]) { + desc->device_addr.mode = IEEE802154_ADDR_SHORT; + desc->device_addr.short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]); + } else { + desc->device_addr.mode = IEEE802154_ADDR_LONG; + desc->device_addr.extended_addr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); + } + } + + if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT && + !info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID]) + return -EINVAL; + + if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX && + !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT]) + return -EINVAL; + + if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX && + !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED]) + return -EINVAL; + + if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT) + desc->id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID]); + + switch (desc->mode) { + case IEEE802154_SCF_KEY_SHORT_INDEX: + { + u32 source = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT]); + desc->short_source = cpu_to_le32(source); + break; + } + case IEEE802154_SCF_KEY_HW_INDEX: + desc->extended_source = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED]); + break; + } + + return 0; +} + +static int +ieee802154_llsec_fill_key_id(struct sk_buff *msg, + const struct ieee802154_llsec_key_id *desc) +{ + if (nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_MODE, desc->mode)) + return -EMSGSIZE; + + if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) { + if (nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, + desc->device_addr.pan_id)) + return -EMSGSIZE; + + if (desc->device_addr.mode == IEEE802154_ADDR_SHORT && + nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, + desc->device_addr.short_addr)) + return -EMSGSIZE; + + if (desc->device_addr.mode == IEEE802154_ADDR_LONG && + nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, + desc->device_addr.extended_addr)) + return -EMSGSIZE; + } + + if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT && + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_ID, desc->id)) + return -EMSGSIZE; + + if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX && + nla_put_u32(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT, + le32_to_cpu(desc->short_source))) + return -EMSGSIZE; + + if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX && + nla_put_hwaddr(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED, + desc->extended_source)) + return -EMSGSIZE; + + return 0; +} + +int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info) +{ + struct sk_buff *msg; + struct net_device *dev = NULL; + int rc = -ENOBUFS; + struct ieee802154_mlme_ops *ops; + void *hdr; + struct ieee802154_llsec_params params; + + pr_debug("%s\n", __func__); + + dev = ieee802154_nl_get_dev(info); + if (!dev) + return -ENODEV; + + ops = ieee802154_mlme_ops(dev); + if (!ops->llsec) { + rc = -EOPNOTSUPP; + goto out_dev; + } + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + goto out_dev; + + hdr = genlmsg_put(msg, 0, info->snd_seq, &nl802154_family, 0, + IEEE802154_LLSEC_GETPARAMS); + if (!hdr) + goto out_free; + + rc = ops->llsec->get_params(dev, ¶ms); + if (rc < 0) + goto out_free; + + if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || + nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_ENABLED, params.enabled) || + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVEL, params.out_level) || + nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, + be32_to_cpu(params.frame_counter)) || + ieee802154_llsec_fill_key_id(msg, ¶ms.out_key)) + goto out_free; + + dev_put(dev); + + return ieee802154_nl_reply(msg, info); +out_free: + nlmsg_free(msg); +out_dev: + dev_put(dev); + return rc; +} + +int ieee802154_llsec_setparams(struct sk_buff *skb, struct genl_info *info) +{ + struct net_device *dev = NULL; + int rc = -EINVAL; + struct ieee802154_mlme_ops *ops; + struct ieee802154_llsec_params params; + int changed = 0; + + pr_debug("%s\n", __func__); + + dev = ieee802154_nl_get_dev(info); + if (!dev) + return -ENODEV; + + if (!info->attrs[IEEE802154_ATTR_LLSEC_ENABLED] && + !info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE] && + !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) + goto out; + + ops = ieee802154_mlme_ops(dev); + if (!ops->llsec) { + rc = -EOPNOTSUPP; + goto out; + } + + if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL] && + nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) > 7) + goto out; + + if (info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]) { + params.enabled = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]); + changed |= IEEE802154_LLSEC_PARAM_ENABLED; + } + + if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) { + if (ieee802154_llsec_parse_key_id(info, ¶ms.out_key)) + goto out; + + changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; + } + + if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) { + params.out_level = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]); + changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; + } + + if (info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]) { + u32 fc = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); + + params.frame_counter = cpu_to_be32(fc); + changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; + } + + rc = ops->llsec->set_params(dev, ¶ms, changed); + + dev_put(dev); + + return rc; +out: + dev_put(dev); + return rc; +} + + + +struct llsec_dump_data { + struct sk_buff *skb; + int s_idx, s_idx2; + int portid; + int nlmsg_seq; + struct net_device *dev; + struct ieee802154_mlme_ops *ops; + struct ieee802154_llsec_table *table; }; -/* - * No need to unregister as family unregistration will do it. - */ -int nl802154_mac_register(void) +static int +ieee802154_llsec_dump_table(struct sk_buff *skb, struct netlink_callback *cb, + int (*step)(struct llsec_dump_data*)) { - int i; + struct net *net = sock_net(skb->sk); + struct net_device *dev; + struct llsec_dump_data data; + int idx = 0; + int first_dev = cb->args[0]; int rc; - rc = genl_register_mc_group(&nl802154_family, - &ieee802154_coord_mcgrp); - if (rc) - return rc; - - rc = genl_register_mc_group(&nl802154_family, - &ieee802154_beacon_mcgrp); - if (rc) - return rc; - - for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) { - rc = genl_register_ops(&nl802154_family, - &ieee802154_coordinator_ops[i]); - if (rc) - return rc; + for_each_netdev(net, dev) { + if (idx < first_dev || dev->type != ARPHRD_IEEE802154) + goto skip; + + data.ops = ieee802154_mlme_ops(dev); + if (!data.ops->llsec) + goto skip; + + data.skb = skb; + data.s_idx = cb->args[1]; + data.s_idx2 = cb->args[2]; + data.dev = dev; + data.portid = NETLINK_CB(cb->skb).portid; + data.nlmsg_seq = cb->nlh->nlmsg_seq; + + data.ops->llsec->lock_table(dev); + data.ops->llsec->get_table(data.dev, &data.table); + rc = step(&data); + data.ops->llsec->unlock_table(dev); + + if (rc < 0) + break; + +skip: + idx++; + } + cb->args[0] = idx; + + return skb->len; +} + +static int +ieee802154_nl_llsec_change(struct sk_buff *skb, struct genl_info *info, + int (*fn)(struct net_device*, struct genl_info*)) +{ + struct net_device *dev = NULL; + int rc = -EINVAL; + + dev = ieee802154_nl_get_dev(info); + if (!dev) + return -ENODEV; + + if (!ieee802154_mlme_ops(dev)->llsec) + rc = -EOPNOTSUPP; + else + rc = fn(dev, info); + + dev_put(dev); + return rc; +} + + + +static int +ieee802154_llsec_parse_key(struct genl_info *info, + struct ieee802154_llsec_key *key) +{ + u8 frames; + u32 commands[256 / 32]; + + memset(key, 0, sizeof(*key)); + + if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES] || + !info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES]) + return -EINVAL; + + frames = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES]); + if ((frames & BIT(IEEE802154_FC_TYPE_MAC_CMD)) && + !info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) + return -EINVAL; + + if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) { + nla_memcpy(commands, + info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS], + 256 / 8); + + if (commands[0] || commands[1] || commands[2] || commands[3] || + commands[4] || commands[5] || commands[6] || + commands[7] >= BIT(IEEE802154_CMD_GTS_REQ + 1)) + return -EINVAL; + + key->cmd_frame_ids = commands[7]; } + key->frame_types = frames; + + nla_memcpy(key->key, info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES], + IEEE802154_LLSEC_KEY_SIZE); + return 0; } + +static int llsec_add_key(struct net_device *dev, struct genl_info *info) +{ + struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); + struct ieee802154_llsec_key key; + struct ieee802154_llsec_key_id id; + + if (ieee802154_llsec_parse_key(info, &key) || + ieee802154_llsec_parse_key_id(info, &id)) + return -EINVAL; + + return ops->llsec->add_key(dev, &id, &key); +} + +int ieee802154_llsec_add_key(struct sk_buff *skb, struct genl_info *info) +{ + if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != + (NLM_F_CREATE | NLM_F_EXCL)) + return -EINVAL; + + return ieee802154_nl_llsec_change(skb, info, llsec_add_key); +} + +static int llsec_remove_key(struct net_device *dev, struct genl_info *info) +{ + struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); + struct ieee802154_llsec_key_id id; + + if (ieee802154_llsec_parse_key_id(info, &id)) + return -EINVAL; + + return ops->llsec->del_key(dev, &id); +} + +int ieee802154_llsec_del_key(struct sk_buff *skb, struct genl_info *info) +{ + return ieee802154_nl_llsec_change(skb, info, llsec_remove_key); +} + +static int +ieee802154_nl_fill_key(struct sk_buff *msg, u32 portid, u32 seq, + const struct ieee802154_llsec_key_entry *key, + const struct net_device *dev) +{ + void *hdr; + u32 commands[256 / 32]; + + hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, + IEEE802154_LLSEC_LIST_KEY); + if (!hdr) + goto out; + + if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || + nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || + ieee802154_llsec_fill_key_id(msg, &key->id) || + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES, + key->key->frame_types)) + goto nla_put_failure; + + if (key->key->frame_types & BIT(IEEE802154_FC_TYPE_MAC_CMD)) { + memset(commands, 0, sizeof(commands)); + commands[7] = key->key->cmd_frame_ids; + if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS, + sizeof(commands), commands)) + goto nla_put_failure; + } + + if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_BYTES, + IEEE802154_LLSEC_KEY_SIZE, key->key->key)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); +out: + return -EMSGSIZE; +} + +static int llsec_iter_keys(struct llsec_dump_data *data) +{ + struct ieee802154_llsec_key_entry *pos; + int rc = 0, idx = 0; + + list_for_each_entry(pos, &data->table->keys, list) { + if (idx++ < data->s_idx) + continue; + + if (ieee802154_nl_fill_key(data->skb, data->portid, + data->nlmsg_seq, pos, data->dev)) { + rc = -EMSGSIZE; + break; + } + + data->s_idx++; + } + + return rc; +} + +int ieee802154_llsec_dump_keys(struct sk_buff *skb, struct netlink_callback *cb) +{ + return ieee802154_llsec_dump_table(skb, cb, llsec_iter_keys); +} + + + +static int +llsec_parse_dev(struct genl_info *info, + struct ieee802154_llsec_device *dev) +{ + memset(dev, 0, sizeof(*dev)); + + if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] || + !info->attrs[IEEE802154_ATTR_HW_ADDR] || + !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE] || + !info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE] || + (!!info->attrs[IEEE802154_ATTR_PAN_ID] != + !!info->attrs[IEEE802154_ATTR_SHORT_ADDR])) + return -EINVAL; + + if (info->attrs[IEEE802154_ATTR_PAN_ID]) { + dev->pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]); + dev->short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]); + } else { + dev->short_addr = cpu_to_le16(IEEE802154_ADDR_UNDEF); + } + + dev->hwaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); + dev->frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); + dev->seclevel_exempt = !!nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]); + dev->key_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE]); + + if (dev->key_mode >= __IEEE802154_LLSEC_DEVKEY_MAX) + return -EINVAL; + + return 0; +} + +static int llsec_add_dev(struct net_device *dev, struct genl_info *info) +{ + struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); + struct ieee802154_llsec_device desc; + + if (llsec_parse_dev(info, &desc)) + return -EINVAL; + + return ops->llsec->add_dev(dev, &desc); +} + +int ieee802154_llsec_add_dev(struct sk_buff *skb, struct genl_info *info) +{ + if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != + (NLM_F_CREATE | NLM_F_EXCL)) + return -EINVAL; + + return ieee802154_nl_llsec_change(skb, info, llsec_add_dev); +} + +static int llsec_del_dev(struct net_device *dev, struct genl_info *info) +{ + struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); + __le64 devaddr; + + if (!info->attrs[IEEE802154_ATTR_HW_ADDR]) + return -EINVAL; + + devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); + + return ops->llsec->del_dev(dev, devaddr); +} + +int ieee802154_llsec_del_dev(struct sk_buff *skb, struct genl_info *info) +{ + return ieee802154_nl_llsec_change(skb, info, llsec_del_dev); +} + +static int +ieee802154_nl_fill_dev(struct sk_buff *msg, u32 portid, u32 seq, + const struct ieee802154_llsec_device *desc, + const struct net_device *dev) +{ + void *hdr; + + hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, + IEEE802154_LLSEC_LIST_DEV); + if (!hdr) + goto out; + + if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || + nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || + nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, desc->pan_id) || + nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, + desc->short_addr) || + nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, desc->hwaddr) || + nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, + desc->frame_counter) || + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE, + desc->seclevel_exempt) || + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_KEY_MODE, desc->key_mode)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); +out: + return -EMSGSIZE; +} + +static int llsec_iter_devs(struct llsec_dump_data *data) +{ + struct ieee802154_llsec_device *pos; + int rc = 0, idx = 0; + + list_for_each_entry(pos, &data->table->devices, list) { + if (idx++ < data->s_idx) + continue; + + if (ieee802154_nl_fill_dev(data->skb, data->portid, + data->nlmsg_seq, pos, data->dev)) { + rc = -EMSGSIZE; + break; + } + + data->s_idx++; + } + + return rc; +} + +int ieee802154_llsec_dump_devs(struct sk_buff *skb, struct netlink_callback *cb) +{ + return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devs); +} + + + +static int llsec_add_devkey(struct net_device *dev, struct genl_info *info) +{ + struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); + struct ieee802154_llsec_device_key key; + __le64 devaddr; + + if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] || + !info->attrs[IEEE802154_ATTR_HW_ADDR] || + ieee802154_llsec_parse_key_id(info, &key.key_id)) + return -EINVAL; + + devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); + key.frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); + + return ops->llsec->add_devkey(dev, devaddr, &key); +} + +int ieee802154_llsec_add_devkey(struct sk_buff *skb, struct genl_info *info) +{ + if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != + (NLM_F_CREATE | NLM_F_EXCL)) + return -EINVAL; + + return ieee802154_nl_llsec_change(skb, info, llsec_add_devkey); +} + +static int llsec_del_devkey(struct net_device *dev, struct genl_info *info) +{ + struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); + struct ieee802154_llsec_device_key key; + __le64 devaddr; + + if (!info->attrs[IEEE802154_ATTR_HW_ADDR] || + ieee802154_llsec_parse_key_id(info, &key.key_id)) + return -EINVAL; + + devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); + + return ops->llsec->del_devkey(dev, devaddr, &key); +} + +int ieee802154_llsec_del_devkey(struct sk_buff *skb, struct genl_info *info) +{ + return ieee802154_nl_llsec_change(skb, info, llsec_del_devkey); +} + +static int +ieee802154_nl_fill_devkey(struct sk_buff *msg, u32 portid, u32 seq, + __le64 devaddr, + const struct ieee802154_llsec_device_key *devkey, + const struct net_device *dev) +{ + void *hdr; + + hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, + IEEE802154_LLSEC_LIST_DEVKEY); + if (!hdr) + goto out; + + if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || + nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || + nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, devaddr) || + nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, + devkey->frame_counter) || + ieee802154_llsec_fill_key_id(msg, &devkey->key_id)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); +out: + return -EMSGSIZE; +} + +static int llsec_iter_devkeys(struct llsec_dump_data *data) +{ + struct ieee802154_llsec_device *dpos; + struct ieee802154_llsec_device_key *kpos; + int rc = 0, idx = 0, idx2; + + list_for_each_entry(dpos, &data->table->devices, list) { + if (idx++ < data->s_idx) + continue; + + idx2 = 0; + + list_for_each_entry(kpos, &dpos->keys, list) { + if (idx2++ < data->s_idx2) + continue; + + if (ieee802154_nl_fill_devkey(data->skb, data->portid, + data->nlmsg_seq, + dpos->hwaddr, kpos, + data->dev)) { + return rc = -EMSGSIZE; + } + + data->s_idx2++; + } + + data->s_idx++; + } + + return rc; +} + +int ieee802154_llsec_dump_devkeys(struct sk_buff *skb, + struct netlink_callback *cb) +{ + return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devkeys); +} + + + +static int +llsec_parse_seclevel(struct genl_info *info, + struct ieee802154_llsec_seclevel *sl) +{ + memset(sl, 0, sizeof(*sl)); + + if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE] || + !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS] || + !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]) + return -EINVAL; + + sl->frame_type = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE]); + if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD) { + if (!info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]) + return -EINVAL; + + sl->cmd_frame_id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]); + } + + sl->sec_levels = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS]); + sl->device_override = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]); + + return 0; +} + +static int llsec_add_seclevel(struct net_device *dev, struct genl_info *info) +{ + struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); + struct ieee802154_llsec_seclevel sl; + + if (llsec_parse_seclevel(info, &sl)) + return -EINVAL; + + return ops->llsec->add_seclevel(dev, &sl); +} + +int ieee802154_llsec_add_seclevel(struct sk_buff *skb, struct genl_info *info) +{ + if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != + (NLM_F_CREATE | NLM_F_EXCL)) + return -EINVAL; + + return ieee802154_nl_llsec_change(skb, info, llsec_add_seclevel); +} + +static int llsec_del_seclevel(struct net_device *dev, struct genl_info *info) +{ + struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); + struct ieee802154_llsec_seclevel sl; + + if (llsec_parse_seclevel(info, &sl)) + return -EINVAL; + + return ops->llsec->del_seclevel(dev, &sl); +} + +int ieee802154_llsec_del_seclevel(struct sk_buff *skb, struct genl_info *info) +{ + return ieee802154_nl_llsec_change(skb, info, llsec_del_seclevel); +} + +static int +ieee802154_nl_fill_seclevel(struct sk_buff *msg, u32 portid, u32 seq, + const struct ieee802154_llsec_seclevel *sl, + const struct net_device *dev) +{ + void *hdr; + + hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, + IEEE802154_LLSEC_LIST_SECLEVEL); + if (!hdr) + goto out; + + if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || + nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_FRAME_TYPE, sl->frame_type) || + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVELS, sl->sec_levels) || + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE, + sl->device_override)) + goto nla_put_failure; + + if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD && + nla_put_u8(msg, IEEE802154_ATTR_LLSEC_CMD_FRAME_ID, + sl->cmd_frame_id)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); +out: + return -EMSGSIZE; +} + +static int llsec_iter_seclevels(struct llsec_dump_data *data) +{ + struct ieee802154_llsec_seclevel *pos; + int rc = 0, idx = 0; + + list_for_each_entry(pos, &data->table->security_levels, list) { + if (idx++ < data->s_idx) + continue; + + if (ieee802154_nl_fill_seclevel(data->skb, data->portid, + data->nlmsg_seq, pos, + data->dev)) { + rc = -EMSGSIZE; + break; + } + + data->s_idx++; + } + + return rc; +} + +int ieee802154_llsec_dump_seclevels(struct sk_buff *skb, + struct netlink_callback *cb) +{ + return ieee802154_llsec_dump_table(skb, cb, llsec_iter_seclevels); +} |