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tests: Add test-psample testing utility.

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This simple program reads from psample and prints the packets to stdout.

Acked-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
This commit is contained in:
Adrian Moreno
2024-07-13 23:23:43 +02:00
committed by Ilya Maximets
parent c10dbcec75
commit 742de01a4a
4 changed files with 361 additions and 1 deletions
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68
include/linux/psample.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __LINUX_PSAMPLE_H
#define __LINUX_PSAMPLE_H
enum {
PSAMPLE_ATTR_IIFINDEX,
PSAMPLE_ATTR_OIFINDEX,
PSAMPLE_ATTR_ORIGSIZE,
PSAMPLE_ATTR_SAMPLE_GROUP,
PSAMPLE_ATTR_GROUP_SEQ,
PSAMPLE_ATTR_SAMPLE_RATE,
PSAMPLE_ATTR_DATA,
PSAMPLE_ATTR_GROUP_REFCOUNT,
PSAMPLE_ATTR_TUNNEL,
PSAMPLE_ATTR_PAD,
PSAMPLE_ATTR_OUT_TC, /* u16 */
PSAMPLE_ATTR_OUT_TC_OCC, /* u64, bytes */
PSAMPLE_ATTR_LATENCY, /* u64, nanoseconds */
PSAMPLE_ATTR_TIMESTAMP, /* u64, nanoseconds */
PSAMPLE_ATTR_PROTO, /* u16 */
PSAMPLE_ATTR_USER_COOKIE, /* binary, user provided data */
PSAMPLE_ATTR_SAMPLE_PROBABILITY,/* no argument, interpret rate in
* PSAMPLE_ATTR_SAMPLE_RATE as a
* probability scaled 0 - U32_MAX.
*/
__PSAMPLE_ATTR_MAX
};
enum psample_command {
PSAMPLE_CMD_SAMPLE,
PSAMPLE_CMD_GET_GROUP,
PSAMPLE_CMD_NEW_GROUP,
PSAMPLE_CMD_DEL_GROUP,
PSAMPLE_CMD_SAMPLE_FILTER_SET,
};
enum psample_tunnel_key_attr {
PSAMPLE_TUNNEL_KEY_ATTR_ID, /* be64 Tunnel ID */
PSAMPLE_TUNNEL_KEY_ATTR_IPV4_SRC, /* be32 src IP address. */
PSAMPLE_TUNNEL_KEY_ATTR_IPV4_DST, /* be32 dst IP address. */
PSAMPLE_TUNNEL_KEY_ATTR_TOS, /* u8 Tunnel IP ToS. */
PSAMPLE_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */
PSAMPLE_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */
PSAMPLE_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */
PSAMPLE_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */
PSAMPLE_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */
PSAMPLE_TUNNEL_KEY_ATTR_TP_SRC, /* be16 src Transport Port. */
PSAMPLE_TUNNEL_KEY_ATTR_TP_DST, /* be16 dst Transport Port. */
PSAMPLE_TUNNEL_KEY_ATTR_VXLAN_OPTS, /* Nested VXLAN opts* */
PSAMPLE_TUNNEL_KEY_ATTR_IPV6_SRC, /* struct in6_addr src IPv6 address. */
PSAMPLE_TUNNEL_KEY_ATTR_IPV6_DST, /* struct in6_addr dst IPv6 address. */
PSAMPLE_TUNNEL_KEY_ATTR_PAD,
PSAMPLE_TUNNEL_KEY_ATTR_ERSPAN_OPTS, /* struct erspan_metadata */
PSAMPLE_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE, /* No argument. IPV4_INFO_BRIDGE mode.*/
__PSAMPLE_TUNNEL_KEY_ATTR_MAX
};
/* Can be overridden at runtime by module option */
#define PSAMPLE_ATTR_MAX (__PSAMPLE_ATTR_MAX - 1)
#define PSAMPLE_NL_MCGRP_CONFIG_NAME "config"
#define PSAMPLE_NL_MCGRP_SAMPLE_NAME "packets"
#define PSAMPLE_GENL_NAME "psample"
#define PSAMPLE_GENL_VERSION 1
#endif