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igb: flower: validate control flags

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This driver currently doesn't support any control flags.

Use flow_rule_match_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_match_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: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Asbjørn Sloth Tønnesen 2024-04-16 14:43:35 +00:00 committed by Tony Nguyen
parent 21e1fe9e84
commit fb324f2b22
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/intel/igb/igb_main.c
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@ -2597,6 +2597,9 @@ static int igb_parse_cls_flower(struct igb_adapter *adapter,
return -EOPNOTSUPP;
}
if (flow_rule_match_has_control_flags(rule, extack))
return -EOPNOTSUPP;
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
struct flow_match_eth_addrs match;