diff mbox series

[iproute2] tc: Fix block-handle support for filter operations

Message ID 20190812101706.15778-1-idosch@idosch.org
State Accepted
Delegated to: stephen hemminger
Headers show
Series [iproute2] tc: Fix block-handle support for filter operations | expand

Commit Message

Ido Schimmel Aug. 12, 2019, 10:17 a.m. UTC
From: Ido Schimmel <idosch@mellanox.com>

Commit e991c04d64c0 ("Revert "tc: Add batchsize feature for filter and
actions"") reverted more than it should and broke shared block
functionality. Fix this by restoring the original functionality.

To reproduce:

# tc qdisc add dev swp1 ingress_block 10 ingress
# tc filter add block 10 proto ip pref 1 flower \
	dst_ip 192.0.2.0/24 action drop
Unknown filter "block", hence option "10" is unparsable

Fixes: e991c04d64c0 ("Revert "tc: Add batchsize feature for filter and actions"")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
---
 tc/tc_filter.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Comments

Jiri Pirko Aug. 12, 2019, 10:26 a.m. UTC | #1
Mon, Aug 12, 2019 at 12:17:06PM CEST, idosch@idosch.org wrote:
>From: Ido Schimmel <idosch@mellanox.com>
>
>Commit e991c04d64c0 ("Revert "tc: Add batchsize feature for filter and
>actions"") reverted more than it should and broke shared block
>functionality. Fix this by restoring the original functionality.
>
>To reproduce:
>
># tc qdisc add dev swp1 ingress_block 10 ingress
># tc filter add block 10 proto ip pref 1 flower \
>	dst_ip 192.0.2.0/24 action drop
>Unknown filter "block", hence option "10" is unparsable
>
>Fixes: e991c04d64c0 ("Revert "tc: Add batchsize feature for filter and actions"")
>Signed-off-by: Ido Schimmel <idosch@mellanox.com>

Acked-by: Jiri Pirko <jiri@mellanox.com>

Thanks Ido!
Stephen Hemminger Aug. 13, 2019, 1:16 a.m. UTC | #2
On Mon, 12 Aug 2019 13:17:06 +0300
Ido Schimmel <idosch@idosch.org> wrote:

> From: Ido Schimmel <idosch@mellanox.com>
> 
> Commit e991c04d64c0 ("Revert "tc: Add batchsize feature for filter and
> actions"") reverted more than it should and broke shared block
> functionality. Fix this by restoring the original functionality.
> 
> To reproduce:
> 
> # tc qdisc add dev swp1 ingress_block 10 ingress
> # tc filter add block 10 proto ip pref 1 flower \
> 	dst_ip 192.0.2.0/24 action drop
> Unknown filter "block", hence option "10" is unparsable
> 
> Fixes: e991c04d64c0 ("Revert "tc: Add batchsize feature for filter and actions"")
> Signed-off-by: Ido Schimmel <idosch@mellanox.com>

Applied
diff mbox series

Patch

diff --git a/tc/tc_filter.c b/tc/tc_filter.c
index 53759a7a8876..23e21d89d7d1 100644
--- a/tc/tc_filter.c
+++ b/tc/tc_filter.c
@@ -74,6 +74,7 @@  static int tc_filter_modify(int cmd, unsigned int flags, int argc, char **argv)
 	__u32 prio = 0;
 	__u32 protocol = 0;
 	int protocol_set = 0;
+	__u32 block_index = 0;
 	__u32 chain_index;
 	int chain_index_set = 0;
 	char *fhandle = NULL;
@@ -89,7 +90,21 @@  static int tc_filter_modify(int cmd, unsigned int flags, int argc, char **argv)
 			NEXT_ARG();
 			if (d[0])
 				duparg("dev", *argv);
+			if (block_index) {
+				fprintf(stderr, "Error: \"dev\" and \"block\" are mutually exclusive\n");
+				return -1;
+			}
 			strncpy(d, *argv, sizeof(d)-1);
+		} else if (matches(*argv, "block") == 0) {
+			NEXT_ARG();
+			if (block_index)
+				duparg("block", *argv);
+			if (d[0]) {
+				fprintf(stderr, "Error: \"dev\" and \"block\" are mutually exclusive\n");
+				return -1;
+			}
+			if (get_u32(&block_index, *argv, 0) || !block_index)
+				invarg("invalid block index value", *argv);
 		} else if (strcmp(*argv, "root") == 0) {
 			if (req.t.tcm_parent) {
 				fprintf(stderr,
@@ -184,6 +199,9 @@  static int tc_filter_modify(int cmd, unsigned int flags, int argc, char **argv)
 			fprintf(stderr, "Cannot find device \"%s\"\n", d);
 			return 1;
 		}
+	} else if (block_index) {
+		req.t.tcm_ifindex = TCM_IFINDEX_MAGIC_BLOCK;
+		req.t.tcm_block_index = block_index;
 	}
 
 	if (q) {