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Date: Fri, 17 Jun 2022 21:32:50 +0200 From: Miquel Raynal <miquel.raynal@...tlin.com> To: Alexander Aring <alex.aring@...il.com>, Stefan Schmidt <stefan@...enfreihafen.org>, linux-wpan@...r.kernel.org Cc: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org, David Girault <david.girault@...vo.com>, Romuald Despres <romuald.despres@...vo.com>, Frederic Blain <frederic.blain@...vo.com>, Nicolas Schodet <nico@...fr.eu.org>, Thomas Petazzoni <thomas.petazzoni@...tlin.com>, Miquel Raynal <miquel.raynal@...tlin.com> Subject: [PATCH wpan-next v2 2/6] net: ieee802154: Ensure only FFDs can become PAN coordinators This is a limitation clearly listed in the specification. Now that we have device types,let's ensure that only FFDs can become PAN coordinators. Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com> --- net/ieee802154/nl802154.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index 638bf544f102..0c6fc3385320 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -924,6 +924,9 @@ static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) return -EINVAL; } + if (type == NL802154_IFTYPE_COORD && !cfg802154_is_ffd(rdev)) + return -EINVAL; + if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); -- 2.34.1
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