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authorAsbjørn Sloth Tønnesen <ast@fiberby.net>2024-04-17 13:51:20 +0000
committerJakub Kicinski <kuba@kernel.org>2024-04-18 17:02:37 -0700
commit4713744d9f6ee1f6dc5ac6f58c30f1b9f21067f8 (patch)
tree869cfab4ec23efa2add83697ce76a27ded915c8c
parent4fa6bd4b33ac9b914e3d1bb95848239ab8fdde1a (diff)
downloadnext-queue-4713744d9f6ee1f6dc5ac6f58c30f1b9f21067f8.tar.gz
mlxsw: spectrum_flower: validate control flags
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: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Petr Machata <petrm@nvidia.com> Link: https://lore.kernel.org/r/20240417135131.99921-1-ast@fiberby.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
index 9fd1ca07925849..f07955b5439f6d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
@@ -595,6 +595,10 @@ static int mlxsw_sp_flower_parse(struct mlxsw_sp *mlxsw_sp,
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 (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {