mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 03:10:12 +00:00
![Björn Töpel](/assets/img/avatar_default.png)
This patch adds the sock_diag interface for querying sockets from user space. Tools like iproute2 ss(8) can use this interface to list open AF_XDP sockets. The user-space ABI is defined in linux/xdp_diag.h and includes netlink request and response structs. The request can query sockets and the response contains socket information about the rings, umems, inode and more. Signed-off-by: Björn Töpel <bjorn.topel@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
72 lines
1.2 KiB
C
72 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
/*
|
|
* xdp_diag: interface for query/monitor XDP sockets
|
|
* Copyright(c) 2019 Intel Corporation.
|
|
*/
|
|
|
|
#ifndef _LINUX_XDP_DIAG_H
|
|
#define _LINUX_XDP_DIAG_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct xdp_diag_req {
|
|
__u8 sdiag_family;
|
|
__u8 sdiag_protocol;
|
|
__u16 pad;
|
|
__u32 xdiag_ino;
|
|
__u32 xdiag_show;
|
|
__u32 xdiag_cookie[2];
|
|
};
|
|
|
|
struct xdp_diag_msg {
|
|
__u8 xdiag_family;
|
|
__u8 xdiag_type;
|
|
__u16 pad;
|
|
__u32 xdiag_ino;
|
|
__u32 xdiag_cookie[2];
|
|
};
|
|
|
|
#define XDP_SHOW_INFO (1 << 0) /* Basic information */
|
|
#define XDP_SHOW_RING_CFG (1 << 1)
|
|
#define XDP_SHOW_UMEM (1 << 2)
|
|
#define XDP_SHOW_MEMINFO (1 << 3)
|
|
|
|
enum {
|
|
XDP_DIAG_NONE,
|
|
XDP_DIAG_INFO,
|
|
XDP_DIAG_UID,
|
|
XDP_DIAG_RX_RING,
|
|
XDP_DIAG_TX_RING,
|
|
XDP_DIAG_UMEM,
|
|
XDP_DIAG_UMEM_FILL_RING,
|
|
XDP_DIAG_UMEM_COMPLETION_RING,
|
|
XDP_DIAG_MEMINFO,
|
|
__XDP_DIAG_MAX,
|
|
};
|
|
|
|
#define XDP_DIAG_MAX (__XDP_DIAG_MAX - 1)
|
|
|
|
struct xdp_diag_info {
|
|
__u32 ifindex;
|
|
__u32 queue_id;
|
|
};
|
|
|
|
struct xdp_diag_ring {
|
|
__u32 entries; /*num descs */
|
|
};
|
|
|
|
#define XDP_DU_F_ZEROCOPY (1 << 0)
|
|
|
|
struct xdp_diag_umem {
|
|
__u64 size;
|
|
__u32 id;
|
|
__u32 num_pages;
|
|
__u32 chunk_size;
|
|
__u32 headroom;
|
|
__u32 ifindex;
|
|
__u32 queue_id;
|
|
__u32 flags;
|
|
__u32 refs;
|
|
};
|
|
|
|
#endif /* _LINUX_XDP_DIAG_H */
|