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i40e: flower: validate control flags

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This driver currently doesn't support any control flags.

Use flow_rule_has_control_flags() to check for control flags,
such as can be set through `tc flower ... ip_flags frag`.

In case any control flags are masked, flow_rule_has_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: Simon Horman <horms@kernel.org>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Asbjørn Sloth Tønnesen 2024-04-16 14:43:19 +00:00 committed by Tony Nguyen
parent 252aa6d539
commit 174ee5bcfe
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/intel/i40e/i40e_main.c
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@ -8671,6 +8671,10 @@ static int i40e_parse_cls_flower(struct i40e_vsi *vsi,
flow_rule_match_control(rule, &match);
addr_type = match.key->addr_type;
if (flow_rule_has_control_flags(match.mask->flags,
f->common.extack))
return -EOPNOTSUPP;
}
if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {