diff options
Diffstat (limited to 'kernel/net/ieee802154/nl802154.c')
| -rw-r--r-- | kernel/net/ieee802154/nl802154.c | 1494 |
1 files changed, 1463 insertions, 31 deletions
diff --git a/kernel/net/ieee802154/nl802154.c b/kernel/net/ieee802154/nl802154.c index f3c12f6a4..16ef0d9f5 100644 --- a/kernel/net/ieee802154/nl802154.c +++ b/kernel/net/ieee802154/nl802154.c @@ -207,10 +207,11 @@ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { [NL802154_ATTR_PAGE] = { .type = NLA_U8, }, [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, }, - [NL802154_ATTR_TX_POWER] = { .type = NLA_S8, }, + [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, }, [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, }, [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, }, + [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, }, [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, }, @@ -225,8 +226,92 @@ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, }, [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, }, + + [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED }, + + [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED }, + + [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 }, + +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL + [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, }, + [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, }, + [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, }, + [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 }, + + [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED }, + [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED }, + [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED }, + [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED }, +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ }; +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL +static int +nl802154_prepare_wpan_dev_dump(struct sk_buff *skb, + struct netlink_callback *cb, + struct cfg802154_registered_device **rdev, + struct wpan_dev **wpan_dev) +{ + int err; + + rtnl_lock(); + + if (!cb->args[0]) { + err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize, + nl802154_fam.attrbuf, nl802154_fam.maxattr, + nl802154_policy); + if (err) + goto out_unlock; + + *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk), + nl802154_fam.attrbuf); + if (IS_ERR(*wpan_dev)) { + err = PTR_ERR(*wpan_dev); + goto out_unlock; + } + *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy); + /* 0 is the first index - add 1 to parse only once */ + cb->args[0] = (*rdev)->wpan_phy_idx + 1; + cb->args[1] = (*wpan_dev)->identifier; + } else { + /* subtract the 1 again here */ + struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1); + struct wpan_dev *tmp; + + if (!wpan_phy) { + err = -ENODEV; + goto out_unlock; + } + *rdev = wpan_phy_to_rdev(wpan_phy); + *wpan_dev = NULL; + + list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) { + if (tmp->identifier == cb->args[1]) { + *wpan_dev = tmp; + break; + } + } + + if (!*wpan_dev) { + err = -ENODEV; + goto out_unlock; + } + } + + return 0; + out_unlock: + rtnl_unlock(); + return err; +} + +static void +nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev) +{ + rtnl_unlock(); +} +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + /* message building helper */ static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq, int flags, u8 cmd) @@ -236,6 +321,28 @@ static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq, } static int +nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask) +{ + struct nlattr *nl_flags = nla_nest_start(msg, attr); + int i; + + if (!nl_flags) + return -ENOBUFS; + + i = 0; + while (mask) { + if ((mask & 1) && nla_put_flag(msg, i)) + return -ENOBUFS; + + mask >>= 1; + i++; + } + + nla_nest_end(msg, nl_flags); + return 0; +} + +static int nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, struct sk_buff *msg) { @@ -248,7 +355,7 @@ nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, for (page = 0; page <= IEEE802154_MAX_PAGE; page++) { if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL, - rdev->wpan_phy.channels_supported[page])) + rdev->wpan_phy.supported.channels[page])) return -ENOBUFS; } nla_nest_end(msg, nl_page); @@ -256,12 +363,100 @@ nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, return 0; } +static int +nl802154_put_capabilities(struct sk_buff *msg, + struct cfg802154_registered_device *rdev) +{ + const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported; + struct nlattr *nl_caps, *nl_channels; + int i; + + nl_caps = nla_nest_start(msg, NL802154_ATTR_WPAN_PHY_CAPS); + if (!nl_caps) + return -ENOBUFS; + + nl_channels = nla_nest_start(msg, NL802154_CAP_ATTR_CHANNELS); + if (!nl_channels) + return -ENOBUFS; + + for (i = 0; i <= IEEE802154_MAX_PAGE; i++) { + if (caps->channels[i]) { + if (nl802154_put_flags(msg, i, caps->channels[i])) + return -ENOBUFS; + } + } + + nla_nest_end(msg, nl_channels); + + if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { + struct nlattr *nl_ed_lvls; + + nl_ed_lvls = nla_nest_start(msg, + NL802154_CAP_ATTR_CCA_ED_LEVELS); + if (!nl_ed_lvls) + return -ENOBUFS; + + for (i = 0; i < caps->cca_ed_levels_size; i++) { + if (nla_put_s32(msg, i, caps->cca_ed_levels[i])) + return -ENOBUFS; + } + + nla_nest_end(msg, nl_ed_lvls); + } + + if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { + struct nlattr *nl_tx_pwrs; + + nl_tx_pwrs = nla_nest_start(msg, NL802154_CAP_ATTR_TX_POWERS); + if (!nl_tx_pwrs) + return -ENOBUFS; + + for (i = 0; i < caps->tx_powers_size; i++) { + if (nla_put_s32(msg, i, caps->tx_powers[i])) + return -ENOBUFS; + } + + nla_nest_end(msg, nl_tx_pwrs); + } + + if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { + if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES, + caps->cca_modes) || + nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS, + caps->cca_opts)) + return -ENOBUFS; + } + + if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) || + nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) || + nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) || + nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) || + nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS, + caps->min_csma_backoffs) || + nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS, + caps->max_csma_backoffs) || + nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES, + caps->min_frame_retries) || + nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES, + caps->max_frame_retries) || + nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES, + caps->iftypes) || + nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt)) + return -ENOBUFS; + + nla_nest_end(msg, nl_caps); + + return 0; +} + static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, enum nl802154_commands cmd, struct sk_buff *msg, u32 portid, u32 seq, int flags) { + struct nlattr *nl_cmds; void *hdr; + int i; hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); if (!hdr) @@ -286,25 +481,77 @@ static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, rdev->wpan_phy.current_channel)) goto nla_put_failure; - /* supported channels array */ + /* TODO remove this behaviour, we still keep support it for a while + * so users can change the behaviour to the new one. + */ if (nl802154_send_wpan_phy_channels(rdev, msg)) goto nla_put_failure; /* cca mode */ - if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE, - rdev->wpan_phy.cca.mode)) - goto nla_put_failure; + if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { + if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE, + rdev->wpan_phy.cca.mode)) + goto nla_put_failure; + + if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) { + if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT, + rdev->wpan_phy.cca.opt)) + goto nla_put_failure; + } + } + + if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { + if (nla_put_s32(msg, NL802154_ATTR_TX_POWER, + rdev->wpan_phy.transmit_power)) + goto nla_put_failure; + } - if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) { - if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT, - rdev->wpan_phy.cca.opt)) + if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { + if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL, + rdev->wpan_phy.cca_ed_level)) goto nla_put_failure; } - if (nla_put_s8(msg, NL802154_ATTR_TX_POWER, - rdev->wpan_phy.transmit_power)) + if (nl802154_put_capabilities(msg, rdev)) + goto nla_put_failure; + + nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS); + if (!nl_cmds) goto nla_put_failure; + i = 0; +#define CMD(op, n) \ + do { \ + if (rdev->ops->op) { \ + i++; \ + if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \ + goto nla_put_failure; \ + } \ + } while (0) + + CMD(add_virtual_intf, NEW_INTERFACE); + CMD(del_virtual_intf, DEL_INTERFACE); + CMD(set_channel, SET_CHANNEL); + CMD(set_pan_id, SET_PAN_ID); + CMD(set_short_addr, SET_SHORT_ADDR); + CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT); + CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS); + CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES); + CMD(set_lbt_mode, SET_LBT_MODE); + CMD(set_ackreq_default, SET_ACKREQ_DEFAULT); + + if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) + CMD(set_tx_power, SET_TX_POWER); + + if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) + CMD(set_cca_ed_level, SET_CCA_ED_LEVEL); + + if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) + CMD(set_cca_mode, SET_CCA_MODE); + +#undef CMD + nla_nest_end(msg, nl_cmds); + finish: genlmsg_end(msg, hdr); return 0; @@ -443,6 +690,107 @@ static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev) ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32); } +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL +#include <net/ieee802154_netdev.h> + +static int +ieee802154_llsec_send_key_id(struct sk_buff *msg, + const struct ieee802154_llsec_key_id *desc) +{ + struct nlattr *nl_dev_addr; + + if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode)) + return -ENOBUFS; + + switch (desc->mode) { + case NL802154_KEY_ID_MODE_IMPLICIT: + nl_dev_addr = nla_nest_start(msg, NL802154_KEY_ID_ATTR_IMPLICIT); + if (!nl_dev_addr) + return -ENOBUFS; + + if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID, + desc->device_addr.pan_id) || + nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE, + desc->device_addr.mode)) + return -ENOBUFS; + + switch (desc->device_addr.mode) { + case NL802154_DEV_ADDR_SHORT: + if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT, + desc->device_addr.short_addr)) + return -ENOBUFS; + break; + case NL802154_DEV_ADDR_EXTENDED: + if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED, + desc->device_addr.extended_addr)) + return -ENOBUFS; + break; + default: + /* userspace should handle unknown */ + break; + } + + nla_nest_end(msg, nl_dev_addr); + break; + case NL802154_KEY_ID_MODE_INDEX: + break; + case NL802154_KEY_ID_MODE_INDEX_SHORT: + /* TODO renmae short_source? */ + if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT, + desc->short_source)) + return -ENOBUFS; + break; + case NL802154_KEY_ID_MODE_INDEX_EXTENDED: + if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED, + desc->extended_source)) + return -ENOBUFS; + break; + default: + /* userspace should handle unknown */ + break; + } + + /* TODO key_id to key_idx ? Check naming */ + if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { + if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id)) + return -ENOBUFS; + } + + return 0; +} + +static int nl802154_get_llsec_params(struct sk_buff *msg, + struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev) +{ + struct nlattr *nl_key_id; + struct ieee802154_llsec_params params; + int ret; + + ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms); + if (ret < 0) + return ret; + + if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) || + nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) || + nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER, + params.frame_counter)) + return -ENOBUFS; + + nl_key_id = nla_nest_start(msg, NL802154_ATTR_SEC_OUT_KEY_ID); + if (!nl_key_id) + return -ENOBUFS; + + ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key); + if (ret < 0) + return ret; + + nla_nest_end(msg, nl_key_id); + + return 0; +} +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + static int nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, struct cfg802154_registered_device *rdev, @@ -490,6 +838,15 @@ nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt)) goto nla_put_failure; + /* ackreq default behaviour */ + if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq)) + goto nla_put_failure; + +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL + if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0) + goto nla_put_failure; +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + genlmsg_end(msg, hdr); return 0; @@ -575,14 +932,13 @@ static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL802154_ATTR_IFTYPE]) { type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]); - if (type > NL802154_IFTYPE_MAX) + if (type > NL802154_IFTYPE_MAX || + !(rdev->wpan_phy.supported.iftypes & BIT(type))) return -EINVAL; } - /* TODO add nla_get_le64 to netlink */ if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) - extended_addr = (__force __le64)nla_get_u64( - info->attrs[NL802154_ATTR_EXTENDED_ADDR]); + extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); if (!rdev->ops->add_virtual_intf) return -EOPNOTSUPP; @@ -625,7 +981,8 @@ static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info) channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]); /* check 802.15.4 constraints */ - if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL) + if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL || + !(rdev->wpan_phy.supported.channels[page] & BIT(channel))) return -EINVAL; return rdev_set_channel(rdev, page, channel); @@ -636,12 +993,17 @@ static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct wpan_phy_cca cca; + if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)) + return -EOPNOTSUPP; + if (!info->attrs[NL802154_ATTR_CCA_MODE]) return -EINVAL; cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]); /* checking 802.15.4 constraints */ - if (cca.mode < NL802154_CCA_ENERGY || cca.mode > NL802154_CCA_ATTR_MAX) + if (cca.mode < NL802154_CCA_ENERGY || + cca.mode > NL802154_CCA_ATTR_MAX || + !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode))) return -EINVAL; if (cca.mode == NL802154_CCA_ENERGY_CARRIER) { @@ -649,13 +1011,58 @@ static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) return -EINVAL; cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]); - if (cca.opt > NL802154_CCA_OPT_ATTR_MAX) + if (cca.opt > NL802154_CCA_OPT_ATTR_MAX || + !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt))) return -EINVAL; } return rdev_set_cca_mode(rdev, &cca); } +static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + s32 ed_level; + int i; + + if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)) + return -EOPNOTSUPP; + + if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL]) + return -EINVAL; + + ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]); + + for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) { + if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i]) + return rdev_set_cca_ed_level(rdev, ed_level); + } + + return -EINVAL; +} + +static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + s32 power; + int i; + + if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)) + return -EOPNOTSUPP; + + if (!info->attrs[NL802154_ATTR_TX_POWER]) + return -EINVAL; + + power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]); + + for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) { + if (power == rdev->wpan_phy.supported.tx_powers[i]) + return rdev_set_tx_power(rdev, power); + } + + return -EINVAL; +} + static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; @@ -668,14 +1075,22 @@ static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) return -EBUSY; /* don't change address fields on monitor */ - if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) - return -EINVAL; - - if (!info->attrs[NL802154_ATTR_PAN_ID]) + if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || + !info->attrs[NL802154_ATTR_PAN_ID]) return -EINVAL; pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); + /* TODO + * I am not sure about to check here on broadcast pan_id. + * Broadcast is a valid setting, comment from 802.15.4: + * If this value is 0xffff, the device is not associated. + * + * This could useful to simple deassociate an device. + */ + if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST)) + return -EINVAL; + return rdev_set_pan_id(rdev, wpan_dev, pan_id); } @@ -691,14 +1106,27 @@ static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) return -EBUSY; /* don't change address fields on monitor */ - if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) - return -EINVAL; - - if (!info->attrs[NL802154_ATTR_SHORT_ADDR]) + if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || + !info->attrs[NL802154_ATTR_SHORT_ADDR]) return -EINVAL; short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); + /* TODO + * I am not sure about to check here on broadcast short_addr. + * Broadcast is a valid setting, comment from 802.15.4: + * A value of 0xfffe indicates that the device has + * associated but has not been allocated an address. A + * value of 0xffff indicates that the device does not + * have a short address. + * + * I think we should allow to set these settings but + * don't allow to allow socket communication with it. + */ + if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) || + short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)) + return -EINVAL; + return rdev_set_short_addr(rdev, wpan_dev, short_addr); } @@ -722,7 +1150,11 @@ nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info) max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); /* check 802.15.4 constraints */ - if (max_be < 3 || max_be > 8 || min_be > max_be) + if (min_be < rdev->wpan_phy.supported.min_minbe || + min_be > rdev->wpan_phy.supported.max_minbe || + max_be < rdev->wpan_phy.supported.min_maxbe || + max_be > rdev->wpan_phy.supported.max_maxbe || + min_be > max_be) return -EINVAL; return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); @@ -747,7 +1179,8 @@ nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info) info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); /* check 802.15.4 constraints */ - if (max_csma_backoffs > 5) + if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs || + max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs) return -EINVAL; return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs); @@ -771,7 +1204,8 @@ nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info) info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); /* check 802.15.4 constraints */ - if (max_frame_retries < -1 || max_frame_retries > 7) + if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries || + max_frame_retries > rdev->wpan_phy.supported.max_frame_retries) return -EINVAL; return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries); @@ -782,7 +1216,7 @@ static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; - bool mode; + int mode; if (netif_running(dev)) return -EBUSY; @@ -790,10 +1224,871 @@ static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) if (!info->attrs[NL802154_ATTR_LBT_MODE]) return -EINVAL; - mode = !!nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); + mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); + + if (mode != 0 && mode != 1) + return -EINVAL; + + if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt)) + return -EINVAL; + return rdev_set_lbt_mode(rdev, wpan_dev, mode); } +static int +nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + int ackreq; + + if (netif_running(dev)) + return -EBUSY; + + if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]) + return -EINVAL; + + ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]); + + if (ackreq != 0 && ackreq != 1) + return -EINVAL; + + return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); +} + +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL +static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { + [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, + [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 }, + [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 }, + [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 }, +}; + +static int +ieee802154_llsec_parse_dev_addr(struct nlattr *nla, + struct ieee802154_addr *addr) +{ + struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; + + if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, + nl802154_dev_addr_policy)) + return -EINVAL; + + if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] && + !attrs[NL802154_DEV_ADDR_ATTR_MODE] && + !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] || + attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])) + return -EINVAL; + + addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]); + addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]); + switch (addr->mode) { + case NL802154_DEV_ADDR_SHORT: + addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]); + break; + case NL802154_DEV_ADDR_EXTENDED: + addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]); + break; + default: + return -EINVAL; + } + + return 0; +} + +static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = { + [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 }, + [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 }, + [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED }, + [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 }, + [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 }, +}; + +static int +ieee802154_llsec_parse_key_id(struct nlattr *nla, + struct ieee802154_llsec_key_id *desc) +{ + struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1]; + + if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla, + nl802154_key_id_policy)) + return -EINVAL; + + if (!attrs[NL802154_KEY_ID_ATTR_MODE]) + return -EINVAL; + + desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]); + switch (desc->mode) { + case NL802154_KEY_ID_MODE_IMPLICIT: + if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT]) + return -EINVAL; + + if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT], + &desc->device_addr) < 0) + return -EINVAL; + break; + case NL802154_KEY_ID_MODE_INDEX: + break; + case NL802154_KEY_ID_MODE_INDEX_SHORT: + if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]) + return -EINVAL; + + desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]); + break; + case NL802154_KEY_ID_MODE_INDEX_EXTENDED: + if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]) + return -EINVAL; + + desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]); + break; + default: + return -EINVAL; + } + + if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { + if (!attrs[NL802154_KEY_ID_ATTR_INDEX]) + return -EINVAL; + + /* TODO change id to idx */ + desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]); + } + + return 0; +} + +static int nl802154_set_llsec_params(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct ieee802154_llsec_params params; + u32 changed = 0; + int ret; + + if (info->attrs[NL802154_ATTR_SEC_ENABLED]) { + u8 enabled; + + enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); + if (enabled != 0 && enabled != 1) + return -EINVAL; + + params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); + changed |= IEEE802154_LLSEC_PARAM_ENABLED; + } + + if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) { + ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID], + ¶ms.out_key); + if (ret < 0) + return ret; + + changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; + } + + if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) { + params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]); + if (params.out_level > NL802154_SECLEVEL_MAX) + return -EINVAL; + + changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; + } + + if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) { + params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]); + changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; + } + + return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed); +} + +static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid, + u32 seq, int flags, + struct cfg802154_registered_device *rdev, + struct net_device *dev, + const struct ieee802154_llsec_key_entry *key) +{ + void *hdr; + u32 commands[NL802154_CMD_FRAME_NR_IDS / 32]; + struct nlattr *nl_key, *nl_key_id; + + hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); + if (!hdr) + return -1; + + if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) + goto nla_put_failure; + + nl_key = nla_nest_start(msg, NL802154_ATTR_SEC_KEY); + if (!nl_key) + goto nla_put_failure; + + nl_key_id = nla_nest_start(msg, NL802154_KEY_ATTR_ID); + if (!nl_key_id) + goto nla_put_failure; + + if (ieee802154_llsec_send_key_id(msg, &key->id) < 0) + goto nla_put_failure; + + nla_nest_end(msg, nl_key_id); + + if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES, + key->key->frame_types)) + goto nla_put_failure; + + if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) { + /* TODO for each nested */ + memset(commands, 0, sizeof(commands)); + commands[7] = key->key->cmd_frame_ids; + if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS, + sizeof(commands), commands)) + goto nla_put_failure; + } + + if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE, + key->key->key)) + goto nla_put_failure; + + nla_nest_end(msg, nl_key); + genlmsg_end(msg, hdr); + + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static int +nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb) +{ + struct cfg802154_registered_device *rdev = NULL; + struct ieee802154_llsec_key_entry *key; + struct ieee802154_llsec_table *table; + struct wpan_dev *wpan_dev; + int err; + + err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); + if (err) + return err; + + if (!wpan_dev->netdev) { + err = -EINVAL; + goto out_err; + } + + rdev_lock_llsec_table(rdev, wpan_dev); + rdev_get_llsec_table(rdev, wpan_dev, &table); + + /* TODO make it like station dump */ + if (cb->args[2]) + goto out; + + list_for_each_entry(key, &table->keys, list) { + if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, NLM_F_MULTI, + rdev, wpan_dev->netdev, key) < 0) { + /* TODO */ + err = -EIO; + rdev_unlock_llsec_table(rdev, wpan_dev); + goto out_err; + } + } + + cb->args[2] = 1; + +out: + rdev_unlock_llsec_table(rdev, wpan_dev); + err = skb->len; +out_err: + nl802154_finish_wpan_dev_dump(rdev); + + return err; +} + +static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = { + [NL802154_KEY_ATTR_ID] = { NLA_NESTED }, + /* TODO handle it as for_each_nested and NLA_FLAG? */ + [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 }, + /* TODO handle it as for_each_nested, not static array? */ + [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 }, + [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE }, +}; + +static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; + struct ieee802154_llsec_key key = { }; + struct ieee802154_llsec_key_id id = { }; + u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { }; + + if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX, + info->attrs[NL802154_ATTR_SEC_KEY], + nl802154_key_policy)) + return -EINVAL; + + if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] || + !attrs[NL802154_KEY_ATTR_BYTES]) + return -EINVAL; + + if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) + return -ENOBUFS; + + key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]); + if (key.frame_types > BIT(NL802154_FRAME_MAX) || + ((key.frame_types & BIT(NL802154_FRAME_CMD)) && + !attrs[NL802154_KEY_ATTR_USAGE_CMDS])) + return -EINVAL; + + if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) { + /* TODO for each nested */ + nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS], + NL802154_CMD_FRAME_NR_IDS / 8); + + /* TODO understand the -EINVAL logic here? last condition */ + if (commands[0] || commands[1] || commands[2] || commands[3] || + commands[4] || commands[5] || commands[6] || + commands[7] > BIT(NL802154_CMD_FRAME_MAX)) + return -EINVAL; + + key.cmd_frame_ids = commands[7]; + } else { + key.cmd_frame_ids = 0; + } + + nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE); + + if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) + return -ENOBUFS; + + return rdev_add_llsec_key(rdev, wpan_dev, &id, &key); +} + +static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; + struct ieee802154_llsec_key_id id; + + if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX, + info->attrs[NL802154_ATTR_SEC_KEY], + nl802154_key_policy)) + return -EINVAL; + + if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) + return -ENOBUFS; + + return rdev_del_llsec_key(rdev, wpan_dev, &id); +} + +static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid, + u32 seq, int flags, + struct cfg802154_registered_device *rdev, + struct net_device *dev, + const struct ieee802154_llsec_device *dev_desc) +{ + void *hdr; + struct nlattr *nl_device; + + hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); + if (!hdr) + return -1; + + if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) + goto nla_put_failure; + + nl_device = nla_nest_start(msg, NL802154_ATTR_SEC_DEVICE); + if (!nl_device) + goto nla_put_failure; + + if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER, + dev_desc->frame_counter) || + nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) || + nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR, + dev_desc->short_addr) || + nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR, + dev_desc->hwaddr) || + nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT, + dev_desc->seclevel_exempt) || + nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode)) + goto nla_put_failure; + + nla_nest_end(msg, nl_device); + genlmsg_end(msg, hdr); + + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static int +nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb) +{ + struct cfg802154_registered_device *rdev = NULL; + struct ieee802154_llsec_device *dev; + struct ieee802154_llsec_table *table; + struct wpan_dev *wpan_dev; + int err; + + err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); + if (err) + return err; + + if (!wpan_dev->netdev) { + err = -EINVAL; + goto out_err; + } + + rdev_lock_llsec_table(rdev, wpan_dev); + rdev_get_llsec_table(rdev, wpan_dev, &table); + + /* TODO make it like station dump */ + if (cb->args[2]) + goto out; + + list_for_each_entry(dev, &table->devices, list) { + if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, NLM_F_MULTI, + rdev, wpan_dev->netdev, dev) < 0) { + /* TODO */ + err = -EIO; + rdev_unlock_llsec_table(rdev, wpan_dev); + goto out_err; + } + } + + cb->args[2] = 1; + +out: + rdev_unlock_llsec_table(rdev, wpan_dev); + err = skb->len; +out_err: + nl802154_finish_wpan_dev_dump(rdev); + + return err; +} + +static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = { + [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 }, + [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 }, + [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 }, + [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, + [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 }, + [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 }, +}; + +static int +ieee802154_llsec_parse_device(struct nlattr *nla, + struct ieee802154_llsec_device *dev) +{ + struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; + + if (!nla || nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, nla, + nl802154_dev_policy)) + return -EINVAL; + + memset(dev, 0, sizeof(*dev)); + + if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] || + !attrs[NL802154_DEV_ATTR_PAN_ID] || + !attrs[NL802154_DEV_ATTR_SHORT_ADDR] || + !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] || + !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] || + !attrs[NL802154_DEV_ATTR_KEY_MODE]) + return -EINVAL; + + /* TODO be32 */ + dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]); + dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]); + dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]); + /* TODO rename hwaddr to extended_addr */ + dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); + dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]); + dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]); + + if (dev->key_mode > NL802154_DEVKEY_MAX || + (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1)) + return -EINVAL; + + return 0; +} + +static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct ieee802154_llsec_device dev_desc; + + if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE], + &dev_desc) < 0) + return -EINVAL; + + return rdev_add_device(rdev, wpan_dev, &dev_desc); +} + +static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; + __le64 extended_addr; + + if (nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, + info->attrs[NL802154_ATTR_SEC_DEVICE], + nl802154_dev_policy)) + return -EINVAL; + + if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]) + return -EINVAL; + + extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); + return rdev_del_device(rdev, wpan_dev, extended_addr); +} + +static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid, + u32 seq, int flags, + struct cfg802154_registered_device *rdev, + struct net_device *dev, __le64 extended_addr, + const struct ieee802154_llsec_device_key *devkey) +{ + void *hdr; + struct nlattr *nl_devkey, *nl_key_id; + + hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); + if (!hdr) + return -1; + + if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) + goto nla_put_failure; + + nl_devkey = nla_nest_start(msg, NL802154_ATTR_SEC_DEVKEY); + if (!nl_devkey) + goto nla_put_failure; + + if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR, + extended_addr) || + nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER, + devkey->frame_counter)) + goto nla_put_failure; + + nl_key_id = nla_nest_start(msg, NL802154_DEVKEY_ATTR_ID); + if (!nl_key_id) + goto nla_put_failure; + + if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0) + goto nla_put_failure; + + nla_nest_end(msg, nl_key_id); + nla_nest_end(msg, nl_devkey); + genlmsg_end(msg, hdr); + + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static int +nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb) +{ + struct cfg802154_registered_device *rdev = NULL; + struct ieee802154_llsec_device_key *kpos; + struct ieee802154_llsec_device *dpos; + struct ieee802154_llsec_table *table; + struct wpan_dev *wpan_dev; + int err; + + err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); + if (err) + return err; + + if (!wpan_dev->netdev) { + err = -EINVAL; + goto out_err; + } + + rdev_lock_llsec_table(rdev, wpan_dev); + rdev_get_llsec_table(rdev, wpan_dev, &table); + + /* TODO make it like station dump */ + if (cb->args[2]) + goto out; + + /* TODO look if remove devkey and do some nested attribute */ + list_for_each_entry(dpos, &table->devices, list) { + list_for_each_entry(kpos, &dpos->keys, list) { + if (nl802154_send_devkey(skb, + NL802154_CMD_NEW_SEC_LEVEL, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, + NLM_F_MULTI, rdev, + wpan_dev->netdev, + dpos->hwaddr, + kpos) < 0) { + /* TODO */ + err = -EIO; + rdev_unlock_llsec_table(rdev, wpan_dev); + goto out_err; + } + } + } + + cb->args[2] = 1; + +out: + rdev_unlock_llsec_table(rdev, wpan_dev); + err = skb->len; +out_err: + nl802154_finish_wpan_dev_dump(rdev); + + return err; +} + +static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = { + [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 }, + [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 }, + [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED }, +}; + +static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; + struct ieee802154_llsec_device_key key; + __le64 extended_addr; + + if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || + nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX, + info->attrs[NL802154_ATTR_SEC_DEVKEY], + nl802154_devkey_policy) < 0) + return -EINVAL; + + if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] || + !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) + return -EINVAL; + + /* TODO change key.id ? */ + if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], + &key.key_id) < 0) + return -ENOBUFS; + + /* TODO be32 */ + key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]); + /* TODO change naming hwaddr -> extended_addr + * check unique identifier short+pan OR extended_addr + */ + extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); + return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key); +} + +static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; + struct ieee802154_llsec_device_key key; + __le64 extended_addr; + + if (nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX, + info->attrs[NL802154_ATTR_SEC_DEVKEY], + nl802154_devkey_policy)) + return -EINVAL; + + if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) + return -EINVAL; + + /* TODO change key.id ? */ + if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], + &key.key_id) < 0) + return -ENOBUFS; + + /* TODO change naming hwaddr -> extended_addr + * check unique identifier short+pan OR extended_addr + */ + extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); + return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key); +} + +static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid, + u32 seq, int flags, + struct cfg802154_registered_device *rdev, + struct net_device *dev, + const struct ieee802154_llsec_seclevel *sl) +{ + void *hdr; + struct nlattr *nl_seclevel; + + hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); + if (!hdr) + return -1; + + if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) + goto nla_put_failure; + + nl_seclevel = nla_nest_start(msg, NL802154_ATTR_SEC_LEVEL); + if (!nl_seclevel) + goto nla_put_failure; + + if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) || + nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) || + nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, + sl->device_override)) + goto nla_put_failure; + + if (sl->frame_type == NL802154_FRAME_CMD) { + if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME, + sl->cmd_frame_id)) + goto nla_put_failure; + } + + nla_nest_end(msg, nl_seclevel); + genlmsg_end(msg, hdr); + + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static int +nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb) +{ + struct cfg802154_registered_device *rdev = NULL; + struct ieee802154_llsec_seclevel *sl; + struct ieee802154_llsec_table *table; + struct wpan_dev *wpan_dev; + int err; + + err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); + if (err) + return err; + + if (!wpan_dev->netdev) { + err = -EINVAL; + goto out_err; + } + + rdev_lock_llsec_table(rdev, wpan_dev); + rdev_get_llsec_table(rdev, wpan_dev, &table); + + /* TODO make it like station dump */ + if (cb->args[2]) + goto out; + + list_for_each_entry(sl, &table->security_levels, list) { + if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL, + NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, NLM_F_MULTI, + rdev, wpan_dev->netdev, sl) < 0) { + /* TODO */ + err = -EIO; + rdev_unlock_llsec_table(rdev, wpan_dev); + goto out_err; + } + } + + cb->args[2] = 1; + +out: + rdev_unlock_llsec_table(rdev, wpan_dev); + err = skb->len; +out_err: + nl802154_finish_wpan_dev_dump(rdev); + + return err; +} + +static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = { + [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 }, + [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 }, + [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 }, + [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 }, +}; + +static int +llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl) +{ + struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1]; + + if (!nla || nla_parse_nested(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, + nl802154_seclevel_policy)) + return -EINVAL; + + memset(sl, 0, sizeof(*sl)); + + if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] || + !attrs[NL802154_SECLEVEL_ATTR_FRAME] || + !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]) + return -EINVAL; + + sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]); + sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]); + sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]); + if (sl->frame_type > NL802154_FRAME_MAX || + (sl->device_override != 0 && sl->device_override != 1)) + return -EINVAL; + + if (sl->frame_type == NL802154_FRAME_CMD) { + if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]) + return -EINVAL; + + sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]); + if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX) + return -EINVAL; + } + + return 0; +} + +static int nl802154_add_llsec_seclevel(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct ieee802154_llsec_seclevel sl; + + if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], + &sl) < 0) + return -EINVAL; + + return rdev_add_seclevel(rdev, wpan_dev, &sl); +} + +static int nl802154_del_llsec_seclevel(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wpan_dev *wpan_dev = dev->ieee802154_ptr; + struct ieee802154_llsec_seclevel sl; + + if (!info->attrs[NL802154_ATTR_SEC_LEVEL] || + llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], + &sl) < 0) + return -EINVAL; + + return rdev_del_seclevel(rdev, wpan_dev, &sl); +} +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + #define NL802154_FLAG_NEED_WPAN_PHY 0x01 #define NL802154_FLAG_NEED_NETDEV 0x02 #define NL802154_FLAG_NEED_RTNL 0x04 @@ -937,6 +2232,22 @@ static const struct genl_ops nl802154_ops[] = { NL802154_FLAG_NEED_RTNL, }, { + .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, + .doit = nl802154_set_cca_ed_level, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_SET_TX_POWER, + .doit = nl802154_set_tx_power, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | + NL802154_FLAG_NEED_RTNL, + }, + { .cmd = NL802154_CMD_SET_PAN_ID, .doit = nl802154_set_pan_id, .policy = nl802154_policy, @@ -984,6 +2295,127 @@ static const struct genl_ops nl802154_ops[] = { .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, + { + .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT, + .doit = nl802154_set_ackreq_default, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL + { + .cmd = NL802154_CMD_SET_SEC_PARAMS, + .doit = nl802154_set_llsec_params, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_GET_SEC_KEY, + /* TODO .doit by matching key id? */ + .dumpit = nl802154_dump_llsec_key, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_NEW_SEC_KEY, + .doit = nl802154_add_llsec_key, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_DEL_SEC_KEY, + .doit = nl802154_del_llsec_key, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + /* TODO unique identifier must short+pan OR extended_addr */ + { + .cmd = NL802154_CMD_GET_SEC_DEV, + /* TODO .doit by matching extended_addr? */ + .dumpit = nl802154_dump_llsec_dev, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_NEW_SEC_DEV, + .doit = nl802154_add_llsec_dev, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_DEL_SEC_DEV, + .doit = nl802154_del_llsec_dev, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + /* TODO remove complete devkey, put it as nested? */ + { + .cmd = NL802154_CMD_GET_SEC_DEVKEY, + /* TODO doit by matching ??? */ + .dumpit = nl802154_dump_llsec_devkey, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_NEW_SEC_DEVKEY, + .doit = nl802154_add_llsec_devkey, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_DEL_SEC_DEVKEY, + .doit = nl802154_del_llsec_devkey, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_GET_SEC_LEVEL, + /* TODO .doit by matching frame_type? */ + .dumpit = nl802154_dump_llsec_seclevel, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_NEW_SEC_LEVEL, + .doit = nl802154_add_llsec_seclevel, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_DEL_SEC_LEVEL, + /* TODO match frame_type only? */ + .doit = nl802154_del_llsec_seclevel, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_NETDEV | + NL802154_FLAG_NEED_RTNL, + }, +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ }; /* initialisation/exit functions */ |