From a950e13865075aeb9d13e3130bed919bbe193f94 Mon Sep 17 00:00:00 2001 From: JingPiao Chen Date: Wed, 19 Jul 2017 17:17:38 +0800 Subject: [PATCH] tests: check decoding of nlmsgerr attributes * tests/nlattr_nlmsgerr.c: New file. * tests/gen_tests.in (nlattr_nlmsgerr): New entry. * tests/pure_executables.list: Add nlattr_nlmsgerr. * tests/.gitignore: Likewise. --- tests/.gitignore | 1 + tests/gen_tests.in | 1 + tests/nlattr_nlmsgerr.c | 86 +++++++++++++++++++++++++++++++++++++ tests/pure_executables.list | 1 + 4 files changed, 89 insertions(+) create mode 100644 tests/nlattr_nlmsgerr.c diff --git a/tests/.gitignore b/tests/.gitignore index 9bed8e8b..a75de088 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -216,6 +216,7 @@ nlattr_inet_diag_msg nlattr_inet_diag_req_compat nlattr_inet_diag_req_v2 nlattr_netlink_diag_msg +nlattr_nlmsgerr nlattr_packet_diag_msg nlattr_smc_diag_msg nlattr_unix_diag_msg diff --git a/tests/gen_tests.in b/tests/gen_tests.in index 7ed08c57..4cea36b3 100644 --- a/tests/gen_tests.in +++ b/tests/gen_tests.in @@ -199,6 +199,7 @@ nlattr_inet_diag_msg +netlink_sock_diag.test nlattr_inet_diag_req_compat +netlink_sock_diag.test 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_smc_diag_msg +netlink_sock_diag.test nlattr_unix_diag_msg +netlink_sock_diag.test diff --git a/tests/nlattr_nlmsgerr.c b/tests/nlattr_nlmsgerr.c new file mode 100644 index 00000000..837283c0 --- /dev/null +++ b/tests/nlattr_nlmsgerr.c @@ -0,0 +1,86 @@ +/* + * 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 +#include "test_nlattr.h" + +#define NLMSGERR_ATTR_COOKIE 3 + +static void +init_nlmsgerr(struct nlmsghdr *const nlh, const unsigned int msg_len) +{ + SET_STRUCT(struct nlmsghdr, nlh, + .nlmsg_len = msg_len, + .nlmsg_type = NLMSG_ERROR, + .nlmsg_flags = NLM_F_REQUEST | NLM_F_CAPPED + ); + + struct nlmsgerr *const err = NLMSG_DATA(nlh); + SET_STRUCT(struct nlmsgerr, err, + .error = -13, + .msg = { + .nlmsg_len = NLMSG_HDRLEN + 4, + .nlmsg_type = NLMSG_NOOP, + .nlmsg_flags = NLM_F_REQUEST, + } + ); +} + +static void +print_nlmsgerr(const unsigned int msg_len) +{ + printf("{len=%u, type=NLMSG_ERROR" + ", flags=NLM_F_REQUEST|NLM_F_CAPPED" + ", seq=0, pid=0}, {error=-EACCES" + ", msg={len=%u, type=NLMSG_NOOP" + ", flags=NLM_F_REQUEST, seq=0, pid=0}", + msg_len, NLMSG_HDRLEN + 4); +} + +int +main(void) +{ + skip_if_unavailable("/proc/self/fd/"); + + const int fd = create_nl_socket(NETLINK_SOCK_DIAG); + const unsigned int hdrlen = sizeof(struct nlmsgerr); + void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen)); + + static const uint8_t cookie[] = { 0xab, 0xfe }; + TEST_NLATTR(fd, nlh0, hdrlen, + init_nlmsgerr, print_nlmsgerr, + NLMSGERR_ATTR_COOKIE, + sizeof(cookie), cookie, sizeof(cookie), + printf("[%u, %u]", cookie[0], cookie[1]); + printf("}")); + + printf("+++ exited with 0 +++\n"); + return 0; +} diff --git a/tests/pure_executables.list b/tests/pure_executables.list index 49200a5c..a0e4dcf1 100755 --- a/tests/pure_executables.list +++ b/tests/pure_executables.list @@ -181,6 +181,7 @@ nlattr_inet_diag_msg nlattr_inet_diag_req_compat nlattr_inet_diag_req_v2 nlattr_netlink_diag_msg +nlattr_nlmsgerr nlattr_packet_diag_msg nlattr_smc_diag_msg nlattr_unix_diag_msg -- 2.40.0