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| author | Alexander Aring <alex.aring@gmail.com> | 2015-05-17 21:44:38 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-05-19 11:44:41 +0200 |
| commit | 673692faf3fb42ec73ef7210238b5869d6e2873d (patch) | |
| tree | 9de5b9e4408ec6de1b29bea56728adb4d9a6bbc5 /net/ieee802154/nl802154.c | |
| parent | 0cf0879acdbeff695963d78940b89497803ae55c (diff) | |
| download | linux-0-day-673692faf3fb42ec73ef7210238b5869d6e2873d.tar.gz linux-0-day-673692faf3fb42ec73ef7210238b5869d6e2873d.tar.xz | |
ieee802154: move validation check out of softmac
This patch moves the value validation out of softmac layer. We need
to be sure now that this value is accepted by the transceiver/mac802154 or
"possible" hardmac drivers before calling rdev-ops.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/ieee802154/nl802154.c')
| -rw-r--r-- | net/ieee802154/nl802154.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index c01f4bbe7c7ca..d750d9778ba7e 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -625,7 +625,8 @@ 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.channels_supported[page] & BIT(channel))) return -EINVAL; return rdev_set_channel(rdev, page, channel); @@ -674,6 +675,16 @@ static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) 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); } @@ -695,6 +706,21 @@ static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) 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); } |