ace6d6ec9e
On my VM, I got identical results between /proc/net/udp[6] and
the udp{4,6} bpf iterator.
For udp6:
$ cat /sys/fs/bpf/p1
sl local_address remote_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
1405: 000080FE00000000FF7CC4D0D9EFE4FE:0222 00000000000000000000000000000000:0000 07 00000000:00000000 00:00000000 00000000 193 0 19183 2 0000000029eab111 0
$ cat /proc/net/udp6
sl local_address remote_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
1405: 000080FE00000000FF7CC4D0D9EFE4FE:0222 00000000000000000000000000000000:0000 07 00000000:00000000 00:00000000 00000000 193 0 19183 2 0000000029eab111 0
For udp4:
$ cat /sys/fs/bpf/p4
sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
2007: 00000000:1F90 00000000:0000 07 00000000:00000000 00:00000000 00000000 0 0 72540 2 000000004ede477a 0
$ cat /proc/net/udp
sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
2007: 00000000:1F90 00000000:0000 07 00000000:00000000 00:00000000 00000000 0 0 72540 2 000000004ede477a 0
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200623230822.3989299-1-yhs@fb.com
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright (c) 2020 Facebook */
|
|
/* "undefine" structs in vmlinux.h, because we "override" them below */
|
|
#define bpf_iter_meta bpf_iter_meta___not_used
|
|
#define bpf_iter__bpf_map bpf_iter__bpf_map___not_used
|
|
#define bpf_iter__ipv6_route bpf_iter__ipv6_route___not_used
|
|
#define bpf_iter__netlink bpf_iter__netlink___not_used
|
|
#define bpf_iter__task bpf_iter__task___not_used
|
|
#define bpf_iter__task_file bpf_iter__task_file___not_used
|
|
#define bpf_iter__tcp bpf_iter__tcp___not_used
|
|
#define tcp6_sock tcp6_sock___not_used
|
|
#define bpf_iter__udp bpf_iter__udp___not_used
|
|
#define udp6_sock udp6_sock___not_used
|
|
#include "vmlinux.h"
|
|
#undef bpf_iter_meta
|
|
#undef bpf_iter__bpf_map
|
|
#undef bpf_iter__ipv6_route
|
|
#undef bpf_iter__netlink
|
|
#undef bpf_iter__task
|
|
#undef bpf_iter__task_file
|
|
#undef bpf_iter__tcp
|
|
#undef tcp6_sock
|
|
#undef bpf_iter__udp
|
|
#undef udp6_sock
|
|
|
|
struct bpf_iter_meta {
|
|
struct seq_file *seq;
|
|
__u64 session_id;
|
|
__u64 seq_num;
|
|
} __attribute__((preserve_access_index));
|
|
|
|
struct bpf_iter__ipv6_route {
|
|
struct bpf_iter_meta *meta;
|
|
struct fib6_info *rt;
|
|
} __attribute__((preserve_access_index));
|
|
|
|
struct bpf_iter__netlink {
|
|
struct bpf_iter_meta *meta;
|
|
struct netlink_sock *sk;
|
|
} __attribute__((preserve_access_index));
|
|
|
|
struct bpf_iter__task {
|
|
struct bpf_iter_meta *meta;
|
|
struct task_struct *task;
|
|
} __attribute__((preserve_access_index));
|
|
|
|
struct bpf_iter__task_file {
|
|
struct bpf_iter_meta *meta;
|
|
struct task_struct *task;
|
|
__u32 fd;
|
|
struct file *file;
|
|
} __attribute__((preserve_access_index));
|
|
|
|
struct bpf_iter__bpf_map {
|
|
struct bpf_iter_meta *meta;
|
|
struct bpf_map *map;
|
|
} __attribute__((preserve_access_index));
|
|
|
|
struct bpf_iter__tcp {
|
|
struct bpf_iter_meta *meta;
|
|
struct sock_common *sk_common;
|
|
uid_t uid;
|
|
} __attribute__((preserve_access_index));
|
|
|
|
struct tcp6_sock {
|
|
struct tcp_sock tcp;
|
|
struct ipv6_pinfo inet6;
|
|
} __attribute__((preserve_access_index));
|
|
|
|
struct bpf_iter__udp {
|
|
struct bpf_iter_meta *meta;
|
|
struct udp_sock *udp_sk;
|
|
uid_t uid __attribute__((aligned(8)));
|
|
int bucket __attribute__((aligned(8)));
|
|
} __attribute__((preserve_access_index));
|
|
|
|
struct udp6_sock {
|
|
struct udp_sock udp;
|
|
struct ipv6_pinfo inet6;
|
|
} __attribute__((preserve_access_index));
|