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net/mlx5e: flower: validate encapsulation control flags

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Encapsulation control flags are currently not used anywhere,
so all flags are currently unsupported by all drivers.

This patch adds validation of this assumption, so that
encapsulation flags may be used in the future.

In case any encapsulation control flags are masked,
flow_rule_match_has_enc_control_flags() sets a NL extended
error message, and we return -EOPNOTSUPP.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Link: https://lore.kernel.org/r/20240609173358.193178-4-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Asbjørn Sloth Tønnesen 2024-06-09 17:33:53 +00:00 committed by Jakub Kicinski
parent 2ede54f878
commit 28d19ec917
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
View File

@ -850,6 +850,12 @@ int mlx5e_tc_tun_parse(struct net_device *filter_dev,
flow_rule_match_enc_control(rule, &match);
addr_type = match.key->addr_type;
if (flow_rule_has_enc_control_flags(match.mask->flags,
extack)) {
err = -EOPNOTSUPP;
goto out;
}
/* For tunnel addr_type used same key id`s as for non-tunnel */
if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
struct flow_match_ipv4_addrs match;