net: l2: ieee802154: don't use net_context->local for AF_PACKET sockets
There is an issue with AF_PACKET sockets bound to ieee802154 l2 iface.
The socket keeps track of the iface link_addr with a sockaddr_ll_ptr
structure, with sll_addr pointing to the iface link_addr address, and
sll_halen being a copy of the iface link_addr length.
The iface link address for ieee802154 can change during association
between extended address (8 bytes) and short address (2 bytes). The
iface link_addr s correctly updated, but the sll_halen of already bound
sockets is not, as it's a out of sync local copy.
This commit fixes #99711 by replacing all the sll_halen usage for
AF_PACKET socket with the iface link_addr length directly on recv and
send paths.
Signed-off-by: Simon Piriou <spiriou31@gmail.com>
2 files changed
