strace/tests/nlattr_ifla_port.c

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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 "test_nlattr.h"
#include <linux/if.h>
#include <linux/if_arp.h>
#ifdef HAVE_LINUX_IF_LINK_H
# include <linux/if_link.h>
#endif
#include <linux/rtnetlink.h>
#if !HAVE_DECL_IFLA_PORT_SELF
enum { IFLA_PORT_SELF = 25 };
#endif
#ifndef IFLA_PORT_VF
# define IFLA_PORT_VF 1
#endif
#define IFLA_ATTR IFLA_PORT_SELF
#include "nlattr_ifla.h"
int
main(void)
{
skip_if_unavailable("/proc/self/fd/");
const int fd = create_nl_socket(NETLINK_ROUTE);
tests: introduce midtail_alloc and use it in netlink tests netlink tests happen to access memory located before the tail_malloc'ed pointers, a practice that doesn't go well with the latest compilers because tail_malloc is marked with ATTRIBUTE_MALLOC. For example, glibc in -D_FORTIFY_SOURCE=2 mode and gcc 8 with -Warray-bounds enabled complain about negative offsets out of bounds. Fix this issue by introducing midtail_alloc. * tests/tests.h (midtail_alloc): New macro. * tests/netlink_crypto.c: Use it instead of tail_malloc for nlh0 allocation. * tests/netlink_netfilter.c: Likewise. * tests/netlink_protocol.c: Likewise. * tests/netlink_route.c: Likewise. * tests/netlink_selinux.c: Likewise. * tests/netlink_sock_diag.c: Likewise. * tests/nlattr_br_port_msg.c: Likewise. * tests/nlattr_crypto_user_alg.c: Likewise. * tests/nlattr_dcbmsg.c: Likewise. * tests/nlattr_fib_rule_hdr.c: Likewise. * tests/nlattr_ifaddrlblmsg.c: Likewise. * tests/nlattr_ifaddrmsg.c: Likewise. * tests/nlattr_ifinfomsg.c: Likewise. * tests/nlattr_ifla_brport.c: Likewise. * tests/nlattr_ifla_port.c: Likewise. * tests/nlattr_ifla_xdp.c: Likewise. * tests/nlattr_inet_diag_msg.c: Likewise. * tests/nlattr_inet_diag_req_compat.c: Likewise. * tests/nlattr_inet_diag_req_v2.c: Likewise. * tests/nlattr_mdba_mdb_entry.c: Likewise. * tests/nlattr_mdba_router_port.c: Likewise. * tests/nlattr_ndmsg.c: Likewise. * tests/nlattr_ndtmsg.c: Likewise. * tests/nlattr_netconfmsg.c: Likewise. * tests/nlattr_netlink_diag_msg.c: Likewise. * tests/nlattr_nlmsgerr.c: Likewise. * tests/nlattr_packet_diag_msg.c: Likewise. * tests/nlattr_rtgenmsg.c: Likewise. * tests/nlattr_rtmsg.c: Likewise. * tests/nlattr_smc_diag_msg.c: Likewise. * tests/nlattr_tc_stats.c: Likewise. * tests/nlattr_tca_stab.c: Likewise. * tests/nlattr_tcamsg.c: Likewise. * tests/nlattr_tcmsg.c: Likewise. * tests/nlattr_unix_diag_msg.c: Likewise. Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
2018-05-08 08:10:16 +03:00
void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), 2 * NLA_HDRLEN + 8);
static char pattern[4096];
fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
const uint32_t num = 0xabacdbcd;
TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_ifinfomsg, print_ifinfomsg,
IFLA_PORT_VF, pattern, num,
printf("%u", num));
#ifdef HAVE_STRUCT_IFLA_PORT_VSI
static const struct ifla_port_vsi vsi = {
.vsi_mgr_id = 0xab,
.vsi_type_id = "abc",
.vsi_type_version = 0xef
};
TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_ifinfomsg, print_ifinfomsg,
IFLA_PORT_VSI_TYPE, pattern, vsi,
PRINT_FIELD_U("{", vsi, vsi_mgr_id);
printf(", vsi_type_id=\"\\x61\\x62\\x63\"");
PRINT_FIELD_U(", ", vsi, vsi_type_version);
printf("}"));
#endif
puts("+++ exited with 0 +++");
return 0;
}