2024-04-22 15:39:55

by Asbjørn Sloth Tønnesen

[permalink] [raw]
Subject: [PATCH net-next] net: ethernet: ti: am65-cpsw: 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.

Signed-off-by: Asbjørn Sloth Tønnesen <[email protected]>
---
drivers/net/ethernet/ti/am65-cpsw-qos.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/ti/am65-cpsw-qos.c b/drivers/net/ethernet/ti/am65-cpsw-qos.c
index 816e73a3d6e4..16f192a5b160 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-qos.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-qos.c
@@ -1008,6 +1008,9 @@ static int am65_cpsw_qos_clsflower_add_policer(struct am65_cpsw_port *port,
return -EOPNOTSUPP;
}

+ if (flow_rule_match_has_control_flags(rule, extack))
+ return -EOPNOTSUPP;
+
if (!flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
NL_SET_ERR_MSG_MOD(extack, "Not matching on eth address");
return -EOPNOTSUPP;
--
2.43.0



2024-04-23 16:02:30

by Jiri Pirko

[permalink] [raw]
Subject: Re: [PATCH net-next] net: ethernet: ti: am65-cpsw: flower: validate control flags

Mon, Apr 22, 2024 at 05:26:42PM CEST, [email protected] wrote:
>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: Asbj?rn Sloth T?nnesen <[email protected]>

Reviewed-by: Jiri Pirko <[email protected]>

2024-04-25 03:00:58

by patchwork-bot+netdevbpf

[permalink] [raw]
Subject: Re: [PATCH net-next] net: ethernet: ti: am65-cpsw: flower: validate control flags

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <[email protected]>:

On Mon, 22 Apr 2024 15:26:42 +0000 you wrote:
> 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.
>
> [...]

Here is the summary with links:
- [net-next] net: ethernet: ti: am65-cpsw: flower: validate control flags
https://git.kernel.org/netdev/net-next/c/8ae124f1897f

You are awesome, thank you!
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