From a26c5fd7622d4951425131d54a8c99f076fe2068 Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Mon, 28 Sep 2015 09:00:25 +0200 Subject: [PATCH] nl802154: add support for security layer This patch adds support for accessing mac802154 llsec implementation over nl802154. I added for a new Kconfig entry to provide this functionality CONFIG_IEEE802154_NL802154_EXPERIMENTAL. This interface is still in development. It provides to change security parameters and add/del/dump entries of security tables. Later we can add also a get to get an entry by unique identifier. Cc: Phoebe Buckheister Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- include/net/cfg802154.h | 131 +++ include/net/ieee802154_netdev.h | 75 -- include/net/nl802154.h | 191 +++++ net/ieee802154/Kconfig | 5 + net/ieee802154/core.c | 12 + net/ieee802154/core.h | 1 + net/ieee802154/nl802154.c | 1316 ++++++++++++++++++++++++++++--- net/ieee802154/rdev-ops.h | 109 +++ net/mac802154/cfg.c | 205 +++++ 9 files changed, 1876 insertions(+), 169 deletions(-) diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h index 242273ccf34b..171cd76558fb 100644 --- a/include/net/cfg802154.h +++ b/include/net/cfg802154.h @@ -27,6 +27,16 @@ struct wpan_phy; struct wpan_phy_cca; +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL +struct ieee802154_llsec_device_key; +struct ieee802154_llsec_seclevel; +struct ieee802154_llsec_params; +struct ieee802154_llsec_device; +struct ieee802154_llsec_table; +struct ieee802154_llsec_key_id; +struct ieee802154_llsec_key; +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + struct cfg802154_ops { struct net_device * (*add_virtual_intf_deprecated)(struct wpan_phy *wpan_phy, const char *name, @@ -65,6 +75,51 @@ struct cfg802154_ops { struct wpan_dev *wpan_dev, bool mode); int (*set_ackreq_default)(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, bool ackreq); +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL + void (*get_llsec_table)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + struct ieee802154_llsec_table **table); + void (*lock_llsec_table)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev); + void (*unlock_llsec_table)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev); + /* TODO remove locking/get table callbacks, this is part of the + * nl802154 interface and should be accessible from ieee802154 layer. + */ + int (*get_llsec_params)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + struct ieee802154_llsec_params *params); + int (*set_llsec_params)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_params *params, + int changed); + int (*add_llsec_key)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_key_id *id, + const struct ieee802154_llsec_key *key); + int (*del_llsec_key)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_key_id *id); + int (*add_seclevel)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_seclevel *sl); + int (*del_seclevel)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_seclevel *sl); + int (*add_device)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_device *dev); + int (*del_device)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, __le64 extended_addr); + int (*add_devkey)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + __le64 extended_addr, + const struct ieee802154_llsec_device_key *key); + int (*del_devkey)(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + __le64 extended_addr, + const struct ieee802154_llsec_device_key *key); +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ }; static inline bool @@ -176,6 +231,82 @@ struct ieee802154_addr { }; }; +struct ieee802154_llsec_key_id { + u8 mode; + u8 id; + union { + struct ieee802154_addr device_addr; + __le32 short_source; + __le64 extended_source; + }; +}; + +#define IEEE802154_LLSEC_KEY_SIZE 16 + +struct ieee802154_llsec_key { + u8 frame_types; + u32 cmd_frame_ids; + /* TODO replace with NL802154_KEY_SIZE */ + u8 key[IEEE802154_LLSEC_KEY_SIZE]; +}; + +struct ieee802154_llsec_key_entry { + struct list_head list; + + struct ieee802154_llsec_key_id id; + struct ieee802154_llsec_key *key; +}; + +struct ieee802154_llsec_params { + bool enabled; + + __be32 frame_counter; + u8 out_level; + struct ieee802154_llsec_key_id out_key; + + __le64 default_key_source; + + __le16 pan_id; + __le64 hwaddr; + __le64 coord_hwaddr; + __le16 coord_shortaddr; +}; + +struct ieee802154_llsec_table { + struct list_head keys; + struct list_head devices; + struct list_head security_levels; +}; + +struct ieee802154_llsec_seclevel { + struct list_head list; + + u8 frame_type; + u8 cmd_frame_id; + bool device_override; + u32 sec_levels; +}; + +struct ieee802154_llsec_device { + struct list_head list; + + __le16 pan_id; + __le16 short_addr; + __le64 hwaddr; + u32 frame_counter; + bool seclevel_exempt; + + u8 key_mode; + struct list_head keys; +}; + +struct ieee802154_llsec_device_key { + struct list_head list; + + struct ieee802154_llsec_key_id key_id; + u32 frame_counter; +}; + struct wpan_dev_header_ops { /* TODO create callback currently assumes ieee802154_mac_cb inside * skb->cb. This should be changed to give these information as diff --git a/include/net/ieee802154_netdev.h b/include/net/ieee802154_netdev.h index aebb9d8d7a11..a62a051a3a2f 100644 --- a/include/net/ieee802154_netdev.h +++ b/include/net/ieee802154_netdev.h @@ -234,38 +234,6 @@ static inline struct ieee802154_mac_cb *mac_cb_init(struct sk_buff *skb) return mac_cb(skb); } -#define IEEE802154_LLSEC_KEY_SIZE 16 - -struct ieee802154_llsec_key_id { - u8 mode; - u8 id; - union { - struct ieee802154_addr device_addr; - __le32 short_source; - __le64 extended_source; - }; -}; - -struct ieee802154_llsec_key { - u8 frame_types; - u32 cmd_frame_ids; - u8 key[IEEE802154_LLSEC_KEY_SIZE]; -}; - -struct ieee802154_llsec_key_entry { - struct list_head list; - - struct ieee802154_llsec_key_id id; - struct ieee802154_llsec_key *key; -}; - -struct ieee802154_llsec_device_key { - struct list_head list; - - struct ieee802154_llsec_key_id key_id; - u32 frame_counter; -}; - enum { IEEE802154_LLSEC_DEVKEY_IGNORE, IEEE802154_LLSEC_DEVKEY_RESTRICT, @@ -274,49 +242,6 @@ enum { __IEEE802154_LLSEC_DEVKEY_MAX, }; -struct ieee802154_llsec_device { - struct list_head list; - - __le16 pan_id; - __le16 short_addr; - __le64 hwaddr; - u32 frame_counter; - bool seclevel_exempt; - - u8 key_mode; - struct list_head keys; -}; - -struct ieee802154_llsec_seclevel { - struct list_head list; - - u8 frame_type; - u8 cmd_frame_id; - bool device_override; - u32 sec_levels; -}; - -struct ieee802154_llsec_params { - bool enabled; - - __be32 frame_counter; - u8 out_level; - struct ieee802154_llsec_key_id out_key; - - __le64 default_key_source; - - __le16 pan_id; - __le64 hwaddr; - __le64 coord_hwaddr; - __le16 coord_shortaddr; -}; - -struct ieee802154_llsec_table { - struct list_head keys; - struct list_head devices; - struct list_head security_levels; -}; - #define IEEE802154_MAC_SCAN_ED 0 #define IEEE802154_MAC_SCAN_ACTIVE 1 #define IEEE802154_MAC_SCAN_PASSIVE 2 diff --git a/include/net/nl802154.h b/include/net/nl802154.h index cf2713d8b975..32cb3e591e07 100644 --- a/include/net/nl802154.h +++ b/include/net/nl802154.h @@ -56,6 +56,22 @@ enum nl802154_commands { /* add new commands above here */ +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL + NL802154_CMD_SET_SEC_PARAMS, + NL802154_CMD_GET_SEC_KEY, /* can dump */ + NL802154_CMD_NEW_SEC_KEY, + NL802154_CMD_DEL_SEC_KEY, + NL802154_CMD_GET_SEC_DEV, /* can dump */ + NL802154_CMD_NEW_SEC_DEV, + NL802154_CMD_DEL_SEC_DEV, + NL802154_CMD_GET_SEC_DEVKEY, /* can dump */ + NL802154_CMD_NEW_SEC_DEVKEY, + NL802154_CMD_DEL_SEC_DEVKEY, + NL802154_CMD_GET_SEC_LEVEL, /* can dump */ + NL802154_CMD_NEW_SEC_LEVEL, + NL802154_CMD_DEL_SEC_LEVEL, +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + /* used to define NL802154_CMD_MAX below */ __NL802154_CMD_AFTER_LAST, NL802154_CMD_MAX = __NL802154_CMD_AFTER_LAST - 1 @@ -110,6 +126,18 @@ enum nl802154_attrs { /* add attributes here, update the policy in nl802154.c */ +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL + NL802154_ATTR_SEC_ENABLED, + NL802154_ATTR_SEC_OUT_LEVEL, + NL802154_ATTR_SEC_OUT_KEY_ID, + NL802154_ATTR_SEC_FRAME_COUNTER, + + NL802154_ATTR_SEC_LEVEL, + NL802154_ATTR_SEC_DEVICE, + NL802154_ATTR_SEC_DEVKEY, + NL802154_ATTR_SEC_KEY, +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + __NL802154_ATTR_AFTER_LAST, NL802154_ATTR_MAX = __NL802154_ATTR_AFTER_LAST - 1 }; @@ -247,4 +275,167 @@ enum nl802154_supported_bool_states { NL802154_SUPPORTED_BOOL_MAX = __NL802154_SUPPORTED_BOOL_AFTER_LAST - 1 }; +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL + +enum nl802154_dev_addr_modes { + NL802154_DEV_ADDR_NONE, + __NL802154_DEV_ADDR_INVALID, + NL802154_DEV_ADDR_SHORT, + NL802154_DEV_ADDR_EXTENDED, + + /* keep last */ + __NL802154_DEV_ADDR_AFTER_LAST, + NL802154_DEV_ADDR_MAX = __NL802154_DEV_ADDR_AFTER_LAST - 1 +}; + +enum nl802154_dev_addr_attrs { + NL802154_DEV_ADDR_ATTR_UNSPEC, + + NL802154_DEV_ADDR_ATTR_PAN_ID, + NL802154_DEV_ADDR_ATTR_MODE, + NL802154_DEV_ADDR_ATTR_SHORT, + NL802154_DEV_ADDR_ATTR_EXTENDED, + + /* keep last */ + __NL802154_DEV_ADDR_ATTR_AFTER_LAST, + NL802154_DEV_ADDR_ATTR_MAX = __NL802154_DEV_ADDR_ATTR_AFTER_LAST - 1 +}; + +enum nl802154_key_id_modes { + NL802154_KEY_ID_MODE_IMPLICIT, + NL802154_KEY_ID_MODE_INDEX, + NL802154_KEY_ID_MODE_INDEX_SHORT, + NL802154_KEY_ID_MODE_INDEX_EXTENDED, + + /* keep last */ + __NL802154_KEY_ID_MODE_AFTER_LAST, + NL802154_KEY_ID_MODE_MAX = __NL802154_KEY_ID_MODE_AFTER_LAST - 1 +}; + +enum nl802154_key_id_attrs { + NL802154_KEY_ID_ATTR_UNSPEC, + + NL802154_KEY_ID_ATTR_MODE, + NL802154_KEY_ID_ATTR_INDEX, + NL802154_KEY_ID_ATTR_IMPLICIT, + NL802154_KEY_ID_ATTR_SOURCE_SHORT, + NL802154_KEY_ID_ATTR_SOURCE_EXTENDED, + + /* keep last */ + __NL802154_KEY_ID_ATTR_AFTER_LAST, + NL802154_KEY_ID_ATTR_MAX = __NL802154_KEY_ID_ATTR_AFTER_LAST - 1 +}; + +enum nl802154_seclevels { + NL802154_SECLEVEL_NONE, + NL802154_SECLEVEL_MIC32, + NL802154_SECLEVEL_MIC64, + NL802154_SECLEVEL_MIC128, + NL802154_SECLEVEL_ENC, + NL802154_SECLEVEL_ENC_MIC32, + NL802154_SECLEVEL_ENC_MIC64, + NL802154_SECLEVEL_ENC_MIC128, + + /* keep last */ + __NL802154_SECLEVEL_AFTER_LAST, + NL802154_SECLEVEL_MAX = __NL802154_SECLEVEL_AFTER_LAST - 1 +}; + +enum nl802154_frames { + NL802154_FRAME_BEACON, + NL802154_FRAME_DATA, + NL802154_FRAME_ACK, + NL802154_FRAME_CMD, + + /* keep last */ + __NL802154_FRAME_AFTER_LAST, + NL802154_FRAME_MAX = __NL802154_FRAME_AFTER_LAST - 1 +}; + +enum nl802154_cmd_frames { + __NL802154_CMD_FRAME_INVALID, + NL802154_CMD_FRAME_ASSOC_REQUEST, + NL802154_CMD_FRAME_ASSOC_RESPONSE, + NL802154_CMD_FRAME_DISASSOC_NOTIFY, + NL802154_CMD_FRAME_DATA_REQUEST, + NL802154_CMD_FRAME_PAN_ID_CONFLICT_NOTIFY, + NL802154_CMD_FRAME_ORPHAN_NOTIFY, + NL802154_CMD_FRAME_BEACON_REQUEST, + NL802154_CMD_FRAME_COORD_REALIGNMENT, + NL802154_CMD_FRAME_GTS_REQUEST, + + /* keep last */ + __NL802154_CMD_FRAME_AFTER_LAST, + NL802154_CMD_FRAME_MAX = __NL802154_CMD_FRAME_AFTER_LAST - 1 +}; + +enum nl802154_seclevel_attrs { + NL802154_SECLEVEL_ATTR_UNSPEC, + + NL802154_SECLEVEL_ATTR_LEVELS, + NL802154_SECLEVEL_ATTR_FRAME, + NL802154_SECLEVEL_ATTR_CMD_FRAME, + NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, + + /* keep last */ + __NL802154_SECLEVEL_ATTR_AFTER_LAST, + NL802154_SECLEVEL_ATTR_MAX = __NL802154_SECLEVEL_ATTR_AFTER_LAST - 1 +}; + +/* TODO what is this? couldn't find in mib */ +enum { + NL802154_DEVKEY_IGNORE, + NL802154_DEVKEY_RESTRICT, + NL802154_DEVKEY_RECORD, + + /* keep last */ + __NL802154_DEVKEY_AFTER_LAST, + NL802154_DEVKEY_MAX = __NL802154_DEVKEY_AFTER_LAST - 1 +}; + +enum nl802154_dev { + NL802154_DEV_ATTR_UNSPEC, + + NL802154_DEV_ATTR_FRAME_COUNTER, + NL802154_DEV_ATTR_PAN_ID, + NL802154_DEV_ATTR_SHORT_ADDR, + NL802154_DEV_ATTR_EXTENDED_ADDR, + NL802154_DEV_ATTR_SECLEVEL_EXEMPT, + NL802154_DEV_ATTR_KEY_MODE, + + /* keep last */ + __NL802154_DEV_ATTR_AFTER_LAST, + NL802154_DEV_ATTR_MAX = __NL802154_DEV_ATTR_AFTER_LAST - 1 +}; + +enum nl802154_devkey { + NL802154_DEVKEY_ATTR_UNSPEC, + + NL802154_DEVKEY_ATTR_FRAME_COUNTER, + NL802154_DEVKEY_ATTR_EXTENDED_ADDR, + NL802154_DEVKEY_ATTR_ID, + + /* keep last */ + __NL802154_DEVKEY_ATTR_AFTER_LAST, + NL802154_DEVKEY_ATTR_MAX = __NL802154_DEVKEY_ATTR_AFTER_LAST - 1 +}; + +enum nl802154_key { + NL802154_KEY_ATTR_UNSPEC, + + NL802154_KEY_ATTR_ID, + NL802154_KEY_ATTR_USAGE_FRAMES, + NL802154_KEY_ATTR_USAGE_CMDS, + NL802154_KEY_ATTR_BYTES, + + /* keep last */ + __NL802154_KEY_ATTR_AFTER_LAST, + NL802154_KEY_ATTR_MAX = __NL802154_KEY_ATTR_AFTER_LAST - 1 +}; + +#define NL802154_KEY_SIZE 16 +#define NL802154_CMD_FRAME_NR_IDS 256 + +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + #endif /* __NL802154_H */ diff --git a/net/ieee802154/Kconfig b/net/ieee802154/Kconfig index 1370d5b0041b..188135bcb803 100644 --- a/net/ieee802154/Kconfig +++ b/net/ieee802154/Kconfig @@ -12,6 +12,11 @@ menuconfig IEEE802154 if IEEE802154 +config IEEE802154_NL802154_EXPERIMENTAL + bool "IEEE 802.15.4 experimental netlink support" + ---help--- + Adds experimental netlink support for nl802154. + config IEEE802154_SOCKET tristate "IEEE 802.15.4 socket interface" default y diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c index b0248e934230..c35fdfa6d04e 100644 --- a/net/ieee802154/core.c +++ b/net/ieee802154/core.c @@ -95,6 +95,18 @@ cfg802154_rdev_by_wpan_phy_idx(int wpan_phy_idx) return result; } +struct wpan_phy *wpan_phy_idx_to_wpan_phy(int wpan_phy_idx) +{ + struct cfg802154_registered_device *rdev; + + ASSERT_RTNL(); + + rdev = cfg802154_rdev_by_wpan_phy_idx(wpan_phy_idx); + if (!rdev) + return NULL; + return &rdev->wpan_phy; +} + struct wpan_phy * wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size) { diff --git a/net/ieee802154/core.h b/net/ieee802154/core.h index f3e95580caee..231fade959f3 100644 --- a/net/ieee802154/core.h +++ b/net/ieee802154/core.h @@ -42,5 +42,6 @@ extern int cfg802154_rdev_list_generation; void cfg802154_dev_free(struct cfg802154_registered_device *rdev); struct cfg802154_registered_device * cfg802154_rdev_by_wpan_phy_idx(int wpan_phy_idx); +struct wpan_phy *wpan_phy_idx_to_wpan_phy(int wpan_phy_idx); #endif /* __IEEE802154_CORE_H */ diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index 51110a6d3674..1e9e86508441 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -232,8 +232,86 @@ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { [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) @@ -612,6 +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 + +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, @@ -663,6 +842,11 @@ nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, 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; @@ -1073,122 +1257,953 @@ nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); } -#define NL802154_FLAG_NEED_WPAN_PHY 0x01 -#define NL802154_FLAG_NEED_NETDEV 0x02 -#define NL802154_FLAG_NEED_RTNL 0x04 -#define NL802154_FLAG_CHECK_NETDEV_UP 0x08 -#define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\ - NL802154_FLAG_CHECK_NETDEV_UP) -#define NL802154_FLAG_NEED_WPAN_DEV 0x10 -#define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\ - NL802154_FLAG_CHECK_NETDEV_UP) +#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 nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, - struct genl_info *info) +static int +ieee802154_llsec_parse_dev_addr(struct nlattr *nla, + struct ieee802154_addr *addr) { - struct cfg802154_registered_device *rdev; - struct wpan_dev *wpan_dev; - struct net_device *dev; - bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; + struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; - if (rtnl) - rtnl_lock(); + if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, + nl802154_dev_addr_policy)) + return -EINVAL; - if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { - rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); - if (IS_ERR(rdev)) { - if (rtnl) - rtnl_unlock(); - return PTR_ERR(rdev); - } - info->user_ptr[0] = rdev; - } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || - ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { - ASSERT_RTNL(); - wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), - info->attrs); - if (IS_ERR(wpan_dev)) { - if (rtnl) - rtnl_unlock(); - return PTR_ERR(wpan_dev); - } + 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; - dev = wpan_dev->netdev; - rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); + 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; + } - if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { - if (!dev) { - if (rtnl) - rtnl_unlock(); - return -EINVAL; - } + return 0; +} - info->user_ptr[1] = dev; - } else { - info->user_ptr[1] = wpan_dev; - } +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 }, +}; - if (dev) { - if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && - !netif_running(dev)) { - if (rtnl) - rtnl_unlock(); - return -ENETDOWN; - } +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]; - dev_hold(dev); - } + if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla, + nl802154_key_id_policy)) + return -EINVAL; - info->user_ptr[0] = rdev; + 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 void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb, - struct genl_info *info) +static int nl802154_set_llsec_params(struct sk_buff *skb, + struct genl_info *info) { - if (info->user_ptr[1]) { - if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { - struct wpan_dev *wpan_dev = info->user_ptr[1]; + 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 (wpan_dev->netdev) - dev_put(wpan_dev->netdev); - } else { - dev_put(info->user_ptr[1]); + 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; } } - if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) - rtnl_unlock(); + 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 genl_ops nl802154_ops[] = { - { - .cmd = NL802154_CMD_GET_WPAN_PHY, - .doit = nl802154_get_wpan_phy, - .dumpit = nl802154_dump_wpan_phy, - .done = nl802154_dump_wpan_phy_done, - .policy = nl802154_policy, - /* can be retrieved by unprivileged users */ - .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | - NL802154_FLAG_NEED_RTNL, - }, - { - .cmd = NL802154_CMD_GET_INTERFACE, - .doit = nl802154_get_interface, - .dumpit = nl802154_dump_interface, - .policy = nl802154_policy, - /* can be retrieved by unprivileged users */ - .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | - NL802154_FLAG_NEED_RTNL, - }, - { - .cmd = NL802154_CMD_NEW_INTERFACE, - .doit = nl802154_new_interface, - .policy = nl802154_policy, - .flags = GENL_ADMIN_PERM, - .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | +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]) + + 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 +#define NL802154_FLAG_CHECK_NETDEV_UP 0x08 +#define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\ + NL802154_FLAG_CHECK_NETDEV_UP) +#define NL802154_FLAG_NEED_WPAN_DEV 0x10 +#define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\ + NL802154_FLAG_CHECK_NETDEV_UP) + +static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg802154_registered_device *rdev; + struct wpan_dev *wpan_dev; + struct net_device *dev; + bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; + + if (rtnl) + rtnl_lock(); + + if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { + rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); + if (IS_ERR(rdev)) { + if (rtnl) + rtnl_unlock(); + return PTR_ERR(rdev); + } + info->user_ptr[0] = rdev; + } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || + ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { + ASSERT_RTNL(); + wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), + info->attrs); + if (IS_ERR(wpan_dev)) { + if (rtnl) + rtnl_unlock(); + return PTR_ERR(wpan_dev); + } + + dev = wpan_dev->netdev; + rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); + + if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { + if (!dev) { + if (rtnl) + rtnl_unlock(); + return -EINVAL; + } + + info->user_ptr[1] = dev; + } else { + info->user_ptr[1] = wpan_dev; + } + + if (dev) { + if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && + !netif_running(dev)) { + if (rtnl) + rtnl_unlock(); + return -ENETDOWN; + } + + dev_hold(dev); + } + + info->user_ptr[0] = rdev; + } + + return 0; +} + +static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb, + struct genl_info *info) +{ + if (info->user_ptr[1]) { + if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { + struct wpan_dev *wpan_dev = info->user_ptr[1]; + + if (wpan_dev->netdev) + dev_put(wpan_dev->netdev); + } else { + dev_put(info->user_ptr[1]); + } + } + + if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) + rtnl_unlock(); +} + +static const struct genl_ops nl802154_ops[] = { + { + .cmd = NL802154_CMD_GET_WPAN_PHY, + .doit = nl802154_get_wpan_phy, + .dumpit = nl802154_dump_wpan_phy, + .done = nl802154_dump_wpan_phy_done, + .policy = nl802154_policy, + /* can be retrieved by unprivileged users */ + .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_GET_INTERFACE, + .doit = nl802154_get_interface, + .dumpit = nl802154_dump_interface, + .policy = nl802154_policy, + /* can be retrieved by unprivileged users */ + .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | + NL802154_FLAG_NEED_RTNL, + }, + { + .cmd = NL802154_CMD_NEW_INTERFACE, + .doit = nl802154_new_interface, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | NL802154_FLAG_NEED_RTNL, }, { @@ -1287,6 +2302,119 @@ static const struct genl_ops nl802154_ops[] = { .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 */ diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h index 03b357501cc5..4441c63b3ea6 100644 --- a/net/ieee802154/rdev-ops.h +++ b/net/ieee802154/rdev-ops.h @@ -208,4 +208,113 @@ rdev_set_ackreq_default(struct cfg802154_registered_device *rdev, return ret; } +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL +/* TODO this is already a nl802154, so move into ieee802154 */ +static inline void +rdev_get_llsec_table(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, + struct ieee802154_llsec_table **table) +{ + rdev->ops->get_llsec_table(&rdev->wpan_phy, wpan_dev, table); +} + +static inline void +rdev_lock_llsec_table(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev) +{ + rdev->ops->lock_llsec_table(&rdev->wpan_phy, wpan_dev); +} + +static inline void +rdev_unlock_llsec_table(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev) +{ + rdev->ops->unlock_llsec_table(&rdev->wpan_phy, wpan_dev); +} + +static inline int +rdev_get_llsec_params(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, + struct ieee802154_llsec_params *params) +{ + return rdev->ops->get_llsec_params(&rdev->wpan_phy, wpan_dev, params); +} + +static inline int +rdev_set_llsec_params(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_params *params, + u32 changed) +{ + return rdev->ops->set_llsec_params(&rdev->wpan_phy, wpan_dev, params, + changed); +} + +static inline int +rdev_add_llsec_key(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_key_id *id, + const struct ieee802154_llsec_key *key) +{ + return rdev->ops->add_llsec_key(&rdev->wpan_phy, wpan_dev, id, key); +} + +static inline int +rdev_del_llsec_key(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_key_id *id) +{ + return rdev->ops->del_llsec_key(&rdev->wpan_phy, wpan_dev, id); +} + +static inline int +rdev_add_seclevel(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_seclevel *sl) +{ + return rdev->ops->add_seclevel(&rdev->wpan_phy, wpan_dev, sl); +} + +static inline int +rdev_del_seclevel(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_seclevel *sl) +{ + return rdev->ops->del_seclevel(&rdev->wpan_phy, wpan_dev, sl); +} + +static inline int +rdev_add_device(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_device *dev_desc) +{ + return rdev->ops->add_device(&rdev->wpan_phy, wpan_dev, dev_desc); +} + +static inline int +rdev_del_device(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, __le64 extended_addr) +{ + return rdev->ops->del_device(&rdev->wpan_phy, wpan_dev, extended_addr); +} + +static inline int +rdev_add_devkey(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, __le64 extended_addr, + const struct ieee802154_llsec_device_key *devkey) +{ + return rdev->ops->add_devkey(&rdev->wpan_phy, wpan_dev, extended_addr, + devkey); +} + +static inline int +rdev_del_devkey(struct cfg802154_registered_device *rdev, + struct wpan_dev *wpan_dev, __le64 extended_addr, + const struct ieee802154_llsec_device_key *devkey) +{ + return rdev->ops->del_devkey(&rdev->wpan_phy, wpan_dev, extended_addr, + devkey); +} +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + #endif /* __CFG802154_RDEV_OPS */ diff --git a/net/mac802154/cfg.c b/net/mac802154/cfg.c index c865ebb2ace2..57b5e94471af 100644 --- a/net/mac802154/cfg.c +++ b/net/mac802154/cfg.c @@ -266,6 +266,195 @@ ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy, return 0; } +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL +static void +ieee802154_get_llsec_table(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + struct ieee802154_llsec_table **table) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + + *table = &sdata->sec.table; +} + +static void +ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + + mutex_lock(&sdata->sec_mtx); +} + +static void +ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + + mutex_unlock(&sdata->sec_mtx); +} + +static int +ieee802154_set_llsec_params(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_params *params, + int changed) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_set_params(&sdata->sec, params, changed); + mutex_unlock(&sdata->sec_mtx); + + return res; +} + +static int +ieee802154_get_llsec_params(struct wpan_phy *wpan_phy, + struct wpan_dev *wpan_dev, + struct ieee802154_llsec_params *params) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_get_params(&sdata->sec, params); + mutex_unlock(&sdata->sec_mtx); + + return res; +} + +static int +ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_key_id *id, + const struct ieee802154_llsec_key *key) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_key_add(&sdata->sec, id, key); + mutex_unlock(&sdata->sec_mtx); + + return res; +} + +static int +ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_key_id *id) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_key_del(&sdata->sec, id); + mutex_unlock(&sdata->sec_mtx); + + return res; +} + +static int +ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_seclevel *sl) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_seclevel_add(&sdata->sec, sl); + mutex_unlock(&sdata->sec_mtx); + + return res; +} + +static int +ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_seclevel *sl) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_seclevel_del(&sdata->sec, sl); + mutex_unlock(&sdata->sec_mtx); + + return res; +} + +static int +ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, + const struct ieee802154_llsec_device *dev_desc) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_dev_add(&sdata->sec, dev_desc); + mutex_unlock(&sdata->sec_mtx); + + return res; +} + +static int +ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, + __le64 extended_addr) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_dev_del(&sdata->sec, extended_addr); + mutex_unlock(&sdata->sec_mtx); + + return res; +} + +static int +ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, + __le64 extended_addr, + const struct ieee802154_llsec_device_key *key) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_devkey_add(&sdata->sec, extended_addr, key); + mutex_unlock(&sdata->sec_mtx); + + return res; +} + +static int +ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, + __le64 extended_addr, + const struct ieee802154_llsec_device_key *key) +{ + struct net_device *dev = wpan_dev->netdev; + struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); + int res; + + mutex_lock(&sdata->sec_mtx); + res = mac802154_llsec_devkey_del(&sdata->sec, extended_addr, key); + mutex_unlock(&sdata->sec_mtx); + + return res; +} +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ + const struct cfg802154_ops mac802154_config_ops = { .add_virtual_intf_deprecated = ieee802154_add_iface_deprecated, .del_virtual_intf_deprecated = ieee802154_del_iface_deprecated, @@ -284,4 +473,20 @@ const struct cfg802154_ops mac802154_config_ops = { .set_max_frame_retries = ieee802154_set_max_frame_retries, .set_lbt_mode = ieee802154_set_lbt_mode, .set_ackreq_default = ieee802154_set_ackreq_default, +#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL + .get_llsec_table = ieee802154_get_llsec_table, + .lock_llsec_table = ieee802154_lock_llsec_table, + .unlock_llsec_table = ieee802154_unlock_llsec_table, + /* TODO above */ + .set_llsec_params = ieee802154_set_llsec_params, + .get_llsec_params = ieee802154_get_llsec_params, + .add_llsec_key = ieee802154_add_llsec_key, + .del_llsec_key = ieee802154_del_llsec_key, + .add_seclevel = ieee802154_add_seclevel, + .del_seclevel = ieee802154_del_seclevel, + .add_device = ieee802154_add_device, + .del_device = ieee802154_del_device, + .add_devkey = ieee802154_add_devkey, + .del_devkey = ieee802154_del_devkey, +#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ }; -- 2.20.1