From 747cdf790d21fee78cfe1eabbba70e6be14e6e86 Mon Sep 17 00:00:00 2001 From: JingPiao Chen Date: Tue, 15 Aug 2017 12:41:25 +0800 Subject: [PATCH] tests: check decoding of NETLINK_ROUTE rtmsg attributes * tests/nlattr_rtmsg.c: New file. * tests/gen_tests.in (nlattr_rtmsg): New entry. * tests/pure_executables.list: Add nlattr_rtmsg. * tests/.gitignore: Likewise. --- tests/.gitignore | 1 + tests/gen_tests.in | 1 + tests/nlattr_rtmsg.c | 95 +++++++++++++++++++++++++++++++++++++ tests/pure_executables.list | 1 + 4 files changed, 98 insertions(+) create mode 100644 tests/nlattr_rtmsg.c diff --git a/tests/.gitignore b/tests/.gitignore index b4443a4c..64dfcb24 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -226,6 +226,7 @@ nlattr_inet_diag_req_v2 nlattr_netlink_diag_msg nlattr_nlmsgerr nlattr_packet_diag_msg +nlattr_rtmsg nlattr_smc_diag_msg nlattr_unix_diag_msg nsyscalls diff --git a/tests/gen_tests.in b/tests/gen_tests.in index b3c9812f..4de4f0fb 100644 --- a/tests/gen_tests.in +++ b/tests/gen_tests.in @@ -206,6 +206,7 @@ nlattr_inet_diag_req_v2 +netlink_sock_diag.test nlattr_netlink_diag_msg +netlink_sock_diag.test nlattr_nlmsgerr +netlink_sock_diag.test nlattr_packet_diag_msg +netlink_sock_diag-v.sh +nlattr_rtmsg +netlink_sock_diag.test nlattr_smc_diag_msg +netlink_sock_diag.test nlattr_unix_diag_msg +netlink_sock_diag.test old_mmap -a11 -e trace=mmap diff --git a/tests/nlattr_rtmsg.c b/tests/nlattr_rtmsg.c new file mode 100644 index 00000000..fd0ccde0 --- /dev/null +++ b/tests/nlattr_rtmsg.c @@ -0,0 +1,95 @@ +/* + * Copyright (c) 2017 JingPiao Chen + * Copyright (c) 2017 The strace developers. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "tests.h" + +#include +#include "test_nlattr.h" +#include +#include + +static void +init_rtmsg(struct nlmsghdr *const nlh, const unsigned int msg_len) +{ + SET_STRUCT(struct nlmsghdr, nlh, + .nlmsg_len = msg_len, + .nlmsg_type = RTM_GETROUTE, + .nlmsg_flags = NLM_F_DUMP + ); + + struct rtmsg *const msg = NLMSG_DATA(nlh); + SET_STRUCT(struct rtmsg, msg, + .rtm_family = AF_UNIX, + .rtm_tos = IPTOS_LOWDELAY, + .rtm_table = RT_TABLE_DEFAULT, + .rtm_protocol = RTPROT_KERNEL, + .rtm_scope = RT_SCOPE_UNIVERSE, + .rtm_type = RTN_LOCAL, + .rtm_flags = RTM_F_NOTIFY + ); +} + +static void +print_rtmsg(const unsigned int msg_len) +{ + printf("{len=%u, type=RTM_GETROUTE, flags=NLM_F_DUMP" + ", seq=0, pid=0}, {rtm_family=AF_UNIX" + ", rtm_dst_len=0, rtm_src_len=0" + ", rtm_tos=IPTOS_LOWDELAY" + ", rtm_table=RT_TABLE_DEFAULT" + ", rtm_protocol=RTPROT_KERNEL" + ", rtm_scope=RT_SCOPE_UNIVERSE" + ", rtm_type=RTN_LOCAL" + ", rtm_flags=RTM_F_NOTIFY}", + 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 rtmsg); + void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen)); + + 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 /* RTA_??? */", nla_type); + TEST_NLATTR_(fd, nlh0, hdrlen, + init_rtmsg, print_rtmsg, + nla_type, nla_type_str, + 4, pattern, 4, + print_quoted_hex(pattern, 4)); + + puts("+++ exited with 0 +++"); + return 0; +} diff --git a/tests/pure_executables.list b/tests/pure_executables.list index 45b259a2..02c3e6ec 100755 --- a/tests/pure_executables.list +++ b/tests/pure_executables.list @@ -189,6 +189,7 @@ nlattr_inet_diag_req_v2 nlattr_netlink_diag_msg nlattr_nlmsgerr nlattr_packet_diag_msg +nlattr_rtmsg nlattr_smc_diag_msg nlattr_unix_diag_msg old_mmap -- 2.40.0