Clean up the driver interface by passing pointers to struct receive_sc
down the stack to the {create,delete}_recevie_sc() ops, instead of
passing the individual properties of the SC.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Clean up the driver interface by passing pointers to struct transmit_sc
down the stack to the {create,delete}_transmit_sc() ops, instead of
passing the individual arguments.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Clean up the driver interface by passing pointers to struct receive_sa
down the stack to the {create,enable,disable}_receive_sa() ops, instead
of passing the individual properties of the SA.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Clean up the driver interface by passing pointers to struct transmit_sa
down the stack to the {create,enable,disable}_transmit_sa ops, instead
of passing the individual properties of the SA.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Clean up the driver interface by passing pointers to structs transmit_sa
and receive_sa down the stack to get_receive_lowest_pn(),
get_transmit_next_pn(), and set_transmit_next_pn() ops, instead of
passing the individual arguments.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
These structs will be passed down to macsec drivers in a coming patch to
make the driver interface cleaner, so they need to be shared between the
core MKA implementation and the drivers.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Assign cs in ieee802_1x_mka_decode_dist_sak_body and reuse it.
Cleanup of key allocation: ieee802_1x_kay_generate_new_sak() and
ieee802_1x_mka_decode_dist_sak_body() both allocate a struct key_conf,
fill it, and ask ieee802_1x_kay_init_data_key() to allocate and set up a
struct data_key. They also allocate multiple key buffers and copy the
same data around. Stop moving data from buffer to buffer, and just
allocate what we really need.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Instead of copying from kay to a temporary struct, and then from the
struct to the sm, just copy from kay to cp.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
This avoids unnecessary typecasting while still being able to compare
the value to CS_TABLE_SIZE without compiler warnings.
Signed-off-by: Jouni Malinen <j@w1.fi>
Share mka deletion implementation in ieee802_1x_participant_timer() for
the cak_life and mka_life expiration cases.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
This takes care of priority comparison followed by MAC address
comparison if the priorities are identical.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
This is a known constant value (CS_ID_LEN, i.e., the length of the EUI64
identifier) and does not need to be provided separately in these
function calls.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
to_use_sak is a Boolean variable, so there is no need for an if
statement to figure out whether to return TRUE or FALSE.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Use for loop to remove unnecessary goto use and similar cleanup to
simplify the loops in ieee802_1x_mka_i_in_peerlist(),
ieee802_1x_mka_decode_live_peer_body(), and
ieee802_1x_kay_decode_mkpdu().
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Each loop iteration resets body_peer in the beginning, so there is no
need to increment this pointer in the end.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Add ieee802_1x_kay_get_potential_peer() similarly to the previously used
ieee802_1x_kay_get_live_peer() and use these helper functions more
consistently to avoid multiple implementations of peer lookups.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
This splits the u32 bitfields into u8 variables and using bitfields only
for the cases where under 8-bit fields are used.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
body_type, used to index in mka_body_handler, can be any u8 value, but
we have only ARRAY_SIZE(mka_body_handler) elements.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
This uses a more accurate variable type for body_type and makes it
cleaner to compare this to other unsigned values.
Signed-off-by: Jouni Malinen <j@w1.fi>
If the memory allocation in ieee802_1x_kay_init_receive_sc() fails, we
end up in an inconsistent state where the peer is moved to the live
peers list and its sci is setup, but we don't have an rxsc.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
The room we actually use is length. This could also mess up the
receiver, since it will advance by the actual length (as indicated by
the parameter body's length), which could differ from the offset at
which we stored the next item.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
1. The comparison between SCI's of two servers with identical priority
is broken, and would always return TRUE. Just use os_memcmp(), which
provides the ordering we need.
2. If no peer can be key server but this instance can, then become the
key server.
3. The ordering of blocks between peer as key server and ourself as key
server overwrites settings. Simple reordering fixes this.
4. Default to being the key server, so that we advertise our ability in
the MKPDUs we send. That's the only way peers can know we can be key
server. Cleared automatically as soon as we find a better peer.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
This is now annotated as be16, so use it as such in all cases instead of
first storing host byte order value and then swapping that to big endian
in other instances of the same structure. This gets rid of number of
sparse warnings.
Signed-off-by: Jouni Malinen <j@w1.fi>
This converts some of the PAE code to use a design that gets rid
unnecessary warnings from sparse and allows more thorough validation of
byte order operations.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Some cases like ifconfig down/up may require MACsec restart. To make
sure the appropriate protect frames and replay parameters get configured
in cases where the interface was down, set these parameters from KaY
configuration to the driver before creating a new transmit SC. This
allows MACsec functionality to recover automatically on such restart.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
