@@ -61,6 +61,10 @@ enum nl802154_commands {
NL802154_CMD_TRIGGER_SCAN,
NL802154_CMD_ABORT_SCAN,
NL802154_CMD_SCAN_DONE,
+ NL802154_CMD_DUMP_PANS,
+ NL802154_CMD_FLUSH_PANS,
+ NL802154_CMD_SET_MAX_PAN_ENTRIES,
+ NL802154_CMD_SET_PANS_EXPIRATION,
/* add new commands above here */
@@ -141,6 +145,9 @@ enum nl802154_attrs {
NL802154_ATTR_SCAN_FLAGS,
NL802154_ATTR_SCAN_CHANNELS,
NL802154_ATTR_SCAN_DURATION,
+ NL802154_ATTR_PAN,
+ NL802154_ATTR_MAX_PAN_ENTRIES,
+ NL802154_ATTR_PANS_EXPIRATION,
/* add attributes here, update the policy in nl802154.c */
@@ -267,6 +274,46 @@ enum nl802154_scan_flags {
NL802154_SCAN_FLAG_RANDOM_ADDR = BIT(0),
};
+/**
+ * enum nl802154_pan - Netlink attributes for a PAN
+ *
+ * @__NL802154_PAN_INVALID: invalid
+ * @NL802154_PAN_PANID: PANID of the PAN (2 bytes)
+ * @NL802154_PAN_COORD_ADDR: Coordinator address, (8 bytes or 2 bytes)
+ * @NL802154_PAN_CHANNEL: channel number, related to @NL802154_PAN_PAGE (u8)
+ * @NL802154_PAN_PAGE: channel page, related to @NL802154_PAN_CHANNEL (u8)
+ * @NL802154_PAN_PREAMBLE_CODE: Preamble code while the beacon was received,
+ * this is PHY dependent and optional (4 bytes)
+ * @NL802154_PAN_SUPERFRAME_SPEC: superframe specification of the PAN (u16)
+ * @NL802154_PAN_LINK_QUALITY: signal quality of beacon in unspecified units,
+ * scaled to 0..255 (u8)
+ * @NL802154_PAN_GTS_PERMIT: set to true if GTS is permitted on this PAN
+ * @NL802154_PAN_PAYLOAD_DATA: binary data containing the raw data from the
+ * frame payload, (only if beacon or probe response had data)
+ * @NL802154_PAN_STATUS: status, if this PAN is "used"
+ * @NL802154_PAN_SEEN_MS_AGO: age of this PAN entry in ms
+ * @NL802154_PAN_PAD: attribute used for padding for 64-bit alignment
+ * @NL802154_PAN_MAX: highest PAN attribute
+ */
+enum nl802154_pan {
+ __NL802154_PAN_INVALID,
+ NL802154_PAN_PANID,
+ NL802154_PAN_COORD_ADDR,
+ NL802154_PAN_CHANNEL,
+ NL802154_PAN_PAGE,
+ NL802154_PAN_PREAMBLE_CODE,
+ NL802154_PAN_SUPERFRAME_SPEC,
+ NL802154_PAN_LINK_QUALITY,
+ NL802154_PAN_GTS_PERMIT,
+ NL802154_PAN_PAYLOAD_DATA,
+ NL802154_PAN_STATUS,
+ NL802154_PAN_SEEN_MS_AGO,
+ NL802154_PAN_PAD,
+
+ /* keep last */
+ NL802154_PAN_MAX,
+};
+
/**
* enum nl802154_cca_modes - cca modes
*
@@ -223,6 +223,9 @@ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
[NL802154_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
[NL802154_ATTR_SCAN_CHANNELS] = { .type = NLA_U32 },
[NL802154_ATTR_SCAN_DURATION] = { .type = NLA_U8 },
+ [NL802154_ATTR_PAN] = { .type = NLA_NESTED },
+ [NL802154_ATTR_MAX_PAN_ENTRIES] = { .type = NLA_U32 },
+ [NL802154_ATTR_PANS_EXPIRATION] = { .type = NLA_U32 },
#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
[NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, },
@@ -237,7 +240,6 @@ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
#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,
@@ -296,7 +298,6 @@ 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,
@@ -1517,6 +1518,172 @@ static int nl802154_abort_scan(struct sk_buff *skb, struct genl_info *info)
return rdev_abort_scan(rdev, wpan_dev);
}
+static int nl802154_send_pan_info(struct sk_buff *msg,
+ struct netlink_callback *cb,
+ u32 seq, int flags,
+ struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ struct cfg802154_internal_pan *intpan)
+{
+ struct ieee802154_pan_desc *pan = &intpan->desc;
+ struct nlattr *nla;
+ void *hdr;
+
+ ASSERT_RTNL();
+
+ hdr = nl802154hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
+ NL802154_CMD_SCAN_DONE);
+ if (!hdr)
+ return -ENOBUFS;
+
+ genl_dump_check_consistent(cb, hdr);
+
+ if (nla_put_u32(msg, NL802154_ATTR_GENERATION, rdev->pan_generation))
+ goto nla_put_failure;
+
+ if (wpan_dev->netdev &&
+ nla_put_u32(msg, NL802154_ATTR_IFINDEX, wpan_dev->netdev->ifindex))
+ goto nla_put_failure;
+
+ if (nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, wpan_dev_id(wpan_dev),
+ NL802154_ATTR_PAD))
+ goto nla_put_failure;
+
+ nla = nla_nest_start_noflag(msg, NL802154_ATTR_PAN);
+ if (!nla)
+ goto nla_put_failure;
+
+ if (nla_put(msg, NL802154_PAN_PANID, IEEE802154_PAN_ID_LEN,
+ &pan->coord->pan_id))
+ goto nla_put_failure;
+
+ if (pan->coord->mode == IEEE802154_ADDR_SHORT) {
+ if (nla_put(msg, NL802154_PAN_COORD_ADDR,
+ IEEE802154_SHORT_ADDR_LEN,
+ &pan->coord->short_addr))
+ goto nla_put_failure;
+ } else {
+ if (nla_put(msg, NL802154_PAN_COORD_ADDR,
+ IEEE802154_EXTENDED_ADDR_LEN,
+ &pan->coord->extended_addr))
+ goto nla_put_failure;
+ }
+
+ if (nla_put_u8(msg, NL802154_PAN_CHANNEL, pan->channel))
+ goto nla_put_failure;
+
+ if (nla_put_u8(msg, NL802154_PAN_PAGE, pan->page))
+ goto nla_put_failure;
+
+ if (nla_put_u16(msg, NL802154_PAN_SUPERFRAME_SPEC,
+ pan->superframe_spec))
+ goto nla_put_failure;
+
+ if (nla_put_u8(msg, NL802154_PAN_LINK_QUALITY, pan->link_quality))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL802154_PAN_SEEN_MS_AGO,
+ jiffies_to_msecs(jiffies - intpan->discovery_ts)))
+ goto nla_put_failure;
+
+ if (pan->gts_permit && nla_put_flag(msg, NL802154_PAN_GTS_PERMIT))
+ goto nla_put_failure;
+
+ /* TODO: NL802154_PAN_PAYLOAD_DATA if any */
+
+ nla_nest_end(msg, nla);
+ genlmsg_end(msg, hdr);
+
+ return 0;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int nl802154_dump_pans(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct cfg802154_registered_device *rdev;
+ struct cfg802154_internal_pan *pan;
+ struct wpan_dev *wpan_dev;
+ int err;
+
+ err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
+ if (err)
+ return err;
+
+ spin_lock_bh(&rdev->pan_lock);
+
+ if (cb->args[2])
+ goto out;
+
+ cb->seq = rdev->pan_generation;
+
+ ieee802154_for_each_pan(pan, rdev) {
+ err = nl802154_send_pan_info(skb, cb, cb->nlh->nlmsg_seq,
+ NLM_F_MULTI, rdev, wpan_dev, pan);
+ if (err < 0)
+ goto out_err;
+ }
+
+ cb->args[2] = 1;
+out:
+ err = skb->len;
+out_err:
+ spin_unlock_bh(&rdev->pan_lock);
+
+ nl802154_finish_wpan_dev_dump(rdev);
+
+ return err;
+}
+
+static int nl802154_flush_pans(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+
+ spin_lock_bh(&rdev->pan_lock);
+ cfg802154_flush_pans(rdev);
+ spin_unlock_bh(&rdev->pan_lock);
+
+ return 0;
+}
+
+static int nl802154_set_max_pan_entries(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ unsigned int max_entries;
+
+ if (!info->attrs[NL802154_ATTR_MAX_PAN_ENTRIES])
+ return -EINVAL;
+
+ max_entries = nla_get_u32(info->attrs[NL802154_ATTR_MAX_PAN_ENTRIES]);
+
+ spin_lock_bh(&rdev->pan_lock);
+ cfg802154_set_max_pan_entries(rdev, max_entries);
+ spin_unlock_bh(&rdev->pan_lock);
+
+ return 0;
+}
+
+static int nl802154_set_pans_expiration(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ unsigned int exp_time_s;
+
+ if (!info->attrs[NL802154_ATTR_PANS_EXPIRATION])
+ return -EINVAL;
+
+ exp_time_s = nla_get_u32(info->attrs[NL802154_ATTR_PANS_EXPIRATION]);
+
+ spin_lock_bh(&rdev->pan_lock);
+ cfg802154_set_pans_expiration(rdev, exp_time_s);
+ spin_unlock_bh(&rdev->pan_lock);
+
+ return 0;
+}
+
#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 },
@@ -2621,6 +2788,32 @@ static const struct genl_ops nl802154_ops[] = {
NL802154_FLAG_CHECK_NETDEV_UP |
NL802154_FLAG_NEED_RTNL,
},
+ {
+ .cmd = NL802154_CMD_DUMP_PANS,
+ .dumpit = nl802154_dump_pans,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = NL802154_CMD_FLUSH_PANS,
+ .doit = nl802154_flush_pans,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_MAX_PAN_ENTRIES,
+ .doit = nl802154_set_max_pan_entries,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL802154_CMD_SET_PANS_EXPIRATION,
+ .doit = nl802154_set_pans_expiration,
+ .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,