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/*
* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
* Copyright (c) 2017-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <stdio.h>
#include <stddef.h>
#include "test_nlattr.h"
#include <linux/pkt_sched.h>
#include <linux/rtnetlink.h>
static void
init_tcmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
{
SET_STRUCT(struct nlmsghdr, nlh,
.nlmsg_len = msg_len,
.nlmsg_type = RTM_GETQDISC,
.nlmsg_flags = NLM_F_DUMP
);
struct tcmsg *const msg = NLMSG_DATA(nlh);
SET_STRUCT(struct tcmsg, msg,
.tcm_family = AF_UNIX,
.tcm_ifindex = ifindex_lo()
);
}
static void
print_tcmsg(const unsigned int msg_len)
{
printf("{len=%u, type=RTM_GETQDISC, flags=NLM_F_DUMP"
", seq=0, pid=0}, {tcm_family=AF_UNIX"
", tcm_ifindex=" IFINDEX_LO_STR
", tcm_handle=0, tcm_parent=0, tcm_info=0}",
msg_len);
}
int
main(void)
{
skip_if_unavailable("/proc/self/fd/");
const int fd = create_nl_socket(NETLINK_ROUTE);
const unsigned int hdrlen = sizeof(struct tcmsg);
void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
NLA_HDRLEN + sizeof(struct tc_stats));
static char pattern[4096];
fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
char nla_type_str[256];
sprintf(nla_type_str, "%#x /* TCA_??? */", nla_type);
TEST_NLATTR_(fd, nlh0, hdrlen,
init_tcmsg, print_tcmsg,
nla_type, nla_type_str,
4, pattern, 4,
print_quoted_hex(pattern, 4));
static const struct tc_stats st = {
.bytes = 0xabcdcdbefeadefac,
.packets = 0xbcdeaefd,
.drops = 0xcdedafed,
.overlimits = 0xdcdbefad,
.bps = 0xefaebfad,
.pps = 0xfefbaedb,
.qlen = 0xabcdefab,
.backlog = 0xbdeabeab
};
char buf[offsetofend(struct tc_stats, backlog)];
memcpy(buf, &st, sizeof(buf));
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_tcmsg, print_tcmsg,
TCA_STATS, pattern, buf,
PRINT_FIELD_U("{", st, bytes);
PRINT_FIELD_U(", ", st, packets);
PRINT_FIELD_U(", ", st, drops);
PRINT_FIELD_U(", ", st, overlimits);
PRINT_FIELD_U(", ", st, bps);
PRINT_FIELD_U(", ", st, pps);
PRINT_FIELD_U(", ", st, qlen);
PRINT_FIELD_U(", ", st, backlog);
printf("}"));
static const struct tc_estimator est = {
.interval = 0xcd,
.ewma_log = 0xab
};
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_tcmsg, print_tcmsg,
TCA_RATE, pattern, est,
PRINT_FIELD_D("{", est, interval);
PRINT_FIELD_U(", ", est, ewma_log);
printf("}"));
puts("+++ exited with 0 +++");
return 0;
}
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