125 lines
3.9 KiB
C
125 lines
3.9 KiB
C
/*
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* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
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* Copyright (c) 2017-2018 The strace developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <stdio.h>
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#include <stddef.h>
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#include "test_nlattr.h"
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#include <linux/pkt_sched.h>
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#include <linux/rtnetlink.h>
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static void
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init_tcmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
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{
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SET_STRUCT(struct nlmsghdr, nlh,
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.nlmsg_len = msg_len,
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.nlmsg_type = RTM_GETQDISC,
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.nlmsg_flags = NLM_F_DUMP
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);
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struct tcmsg *const msg = NLMSG_DATA(nlh);
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SET_STRUCT(struct tcmsg, msg,
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.tcm_family = AF_UNIX,
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.tcm_ifindex = ifindex_lo()
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);
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}
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static void
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print_tcmsg(const unsigned int msg_len)
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{
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printf("{len=%u, type=RTM_GETQDISC, flags=NLM_F_DUMP"
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", seq=0, pid=0}, {tcm_family=AF_UNIX"
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", tcm_ifindex=" IFINDEX_LO_STR
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", tcm_handle=0, tcm_parent=0, tcm_info=0}",
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msg_len);
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}
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int
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main(void)
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{
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skip_if_unavailable("/proc/self/fd/");
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const int fd = create_nl_socket(NETLINK_ROUTE);
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const unsigned int hdrlen = sizeof(struct tcmsg);
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void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
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NLA_HDRLEN + sizeof(struct tc_stats));
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static char pattern[4096];
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fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
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const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
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char nla_type_str[256];
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sprintf(nla_type_str, "%#x /* TCA_??? */", nla_type);
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TEST_NLATTR_(fd, nlh0, hdrlen,
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init_tcmsg, print_tcmsg,
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nla_type, nla_type_str,
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4, pattern, 4,
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print_quoted_hex(pattern, 4));
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static const struct tc_stats st = {
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.bytes = 0xabcdcdbefeadefac,
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.packets = 0xbcdeaefd,
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.drops = 0xcdedafed,
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.overlimits = 0xdcdbefad,
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.bps = 0xefaebfad,
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.pps = 0xfefbaedb,
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.qlen = 0xabcdefab,
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.backlog = 0xbdeabeab
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};
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char buf[offsetofend(struct tc_stats, backlog)];
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memcpy(buf, &st, sizeof(buf));
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_tcmsg, print_tcmsg,
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TCA_STATS, pattern, buf,
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PRINT_FIELD_U("{", st, bytes);
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PRINT_FIELD_U(", ", st, packets);
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PRINT_FIELD_U(", ", st, drops);
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PRINT_FIELD_U(", ", st, overlimits);
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PRINT_FIELD_U(", ", st, bps);
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PRINT_FIELD_U(", ", st, pps);
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PRINT_FIELD_U(", ", st, qlen);
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PRINT_FIELD_U(", ", st, backlog);
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printf("}"));
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static const struct tc_estimator est = {
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.interval = 0xcd,
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.ewma_log = 0xab
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};
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_tcmsg, print_tcmsg,
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TCA_RATE, pattern, est,
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PRINT_FIELD_D("{", est, interval);
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PRINT_FIELD_U(", ", est, ewma_log);
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printf("}"));
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puts("+++ exited with 0 +++");
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return 0;
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}
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