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authorAsbjørn Sloth Tønnesen <ast@fiberby.net>2024-04-18 16:17:49 +0000
committerJakub Kicinski <kuba@kernel.org>2024-04-22 17:42:31 -0700
commit93a8540aac72772b5b5c933cea5aae2c88a7777e (patch)
treefa8acb4315f7de1d392f4e372e24a1bcf897d4b1 /drivers/net/ethernet/chelsio/cxgb4
parent2540088b836f9e208f7f722a67f9b168737036e8 (diff)
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cxgb4: flower: validate control flags
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. Only compile tested, no hardware available. Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240418161751.189226-1-ast@fiberby.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
index 3a6987cafe59..69d045d769c4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
@@ -327,6 +327,9 @@ static int cxgb4_validate_flow_match(struct netlink_ext_ack *extack,
return -EOPNOTSUPP;
}
+ if (flow_rule_match_has_control_flags(rule, extack))
+ return -EOPNOTSUPP;
+
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
struct flow_match_basic match;