Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2#include <stdio.h>
3#include <string.h>
4
5#include <ynl.h>
6
7#include <net/if.h>
8
9#include "tc-user.h"
10
11static void tc_qdisc_print(struct tc_getqdisc_rsp *q)
12{
13 char ifname[IF_NAMESIZE];
14 const char *name;
15
16 name = if_indextoname(q->_hdr.tcm_ifindex, ifname);
17 if (name)
18 printf("%16s: ", name);
19
20 if (q->_len.kind) {
21 printf("%s ", q->kind);
22
23 if (q->options._present.fq_codel) {
24 struct tc_fq_codel_attrs *fq_codel;
25 struct tc_fq_codel_xstats *stats;
26
27 fq_codel = &q->options.fq_codel;
28 stats = q->stats2.app.fq_codel;
29
30 if (fq_codel->_present.limit)
31 printf("limit: %dp ", fq_codel->limit);
32 if (fq_codel->_present.target)
33 printf("target: %dms ",
34 (fq_codel->target + 500) / 1000);
35 if (q->stats2.app._len.fq_codel)
36 printf("new_flow_cnt: %d ",
37 stats->qdisc_stats.new_flow_count);
38 }
39 }
40
41 printf("\n");
42}
43
44int main(int argc, char **argv)
45{
46 struct tc_getqdisc_req_dump *req;
47 struct tc_getqdisc_list *rsp;
48 struct ynl_error yerr;
49 struct ynl_sock *ys;
50
51 ys = ynl_sock_create(&ynl_tc_family, &yerr);
52 if (!ys) {
53 fprintf(stderr, "YNL: %s\n", yerr.msg);
54 return 1;
55 }
56
57 req = tc_getqdisc_req_dump_alloc();
58 if (!req)
59 goto err_destroy;
60
61 rsp = tc_getqdisc_dump(ys, req);
62 tc_getqdisc_req_dump_free(req);
63 if (!rsp)
64 goto err_close;
65
66 if (ynl_dump_empty(rsp))
67 fprintf(stderr, "Error: no addresses reported\n");
68 ynl_dump_foreach(rsp, qdisc)
69 tc_qdisc_print(qdisc);
70 tc_getqdisc_list_free(rsp);
71
72 ynl_sock_destroy(ys);
73 return 0;
74
75err_close:
76 fprintf(stderr, "YNL: %s\n", ys->err.msg);
77err_destroy:
78 ynl_sock_destroy(ys);
79 return 2;
80}