From 8801aa382ebc7d4c9a262a952db62728be03da27 Mon Sep 17 00:00:00 2001 From: JingPiao Chen Date: Sun, 3 Sep 2017 09:25:09 +0800 Subject: [PATCH] tests: check decoding of IFLA_XDP netlink attribute of ifinfomsg * tests/nlattr_ifla_xdp.c: New file. * tests/gen_tests.in (nlattr_ifla_xdp): New entry. * tests/pure_executables.list: Add nlattr_ifla_xdp. * tests/.gitignore: Likewise. --- tests/.gitignore | 1 + tests/gen_tests.in | 1 + tests/nlattr_ifla_xdp.c | 112 ++++++++++++++++++++++++++++++++++++ tests/pure_executables.list | 1 + 4 files changed, 115 insertions(+) create mode 100644 tests/nlattr_ifla_xdp.c diff --git a/tests/.gitignore b/tests/.gitignore index 1594ca81..3d1631e1 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -227,6 +227,7 @@ nlattr_ifaddrmsg nlattr_ifinfomsg nlattr_ifla_brport nlattr_ifla_port +nlattr_ifla_xdp nlattr_inet_diag_msg nlattr_inet_diag_req_compat nlattr_inet_diag_req_v2 diff --git a/tests/gen_tests.in b/tests/gen_tests.in index 32cf383d..8592e28b 100644 --- a/tests/gen_tests.in +++ b/tests/gen_tests.in @@ -206,6 +206,7 @@ nlattr_ifaddrmsg +netlink_sock_diag.test nlattr_ifinfomsg +netlink_sock_diag.test nlattr_ifla_brport +netlink_sock_diag.test nlattr_ifla_port +netlink_sock_diag.test +nlattr_ifla_xdp +netlink_sock_diag.test 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 diff --git a/tests/nlattr_ifla_xdp.c b/tests/nlattr_ifla_xdp.c new file mode 100644 index 00000000..cca5219e --- /dev/null +++ b/tests/nlattr_ifla_xdp.c @@ -0,0 +1,112 @@ +/* + * 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 +#ifdef HAVE_LINUX_IF_LINK_H +# include +#endif +#include + +#ifndef IFLA_XDP +# define IFLA_XDP 43 +#endif +#ifndef IFLA_XDP_FD +# define IFLA_XDP_FD 1 +#endif + +const unsigned int hdrlen = sizeof(struct ifinfomsg); + +static void +init_ifinfomsg(struct nlmsghdr *const nlh, const unsigned int msg_len) +{ + SET_STRUCT(struct nlmsghdr, nlh, + .nlmsg_len = msg_len, + .nlmsg_type = RTM_GETLINK, + .nlmsg_flags = NLM_F_DUMP + ); + + struct ifinfomsg *const msg = NLMSG_DATA(nlh); + SET_STRUCT(struct ifinfomsg, msg, + .ifi_family = AF_UNIX, + .ifi_type = ARPHRD_LOOPBACK, + .ifi_index = ifindex_lo(), + .ifi_flags = IFF_UP, + ); + + struct nlattr *const nla = NLMSG_ATTR(nlh, sizeof(*msg)); + SET_STRUCT(struct nlattr, nla, + .nla_len = msg_len - NLMSG_SPACE(hdrlen), + .nla_type = IFLA_XDP + ); +} + +static void +print_ifinfomsg(const unsigned int msg_len) +{ + printf("{len=%u, type=RTM_GETLINK, flags=NLM_F_DUMP" + ", seq=0, pid=0}, {ifi_family=AF_UNIX" + ", ifi_type=ARPHRD_LOOPBACK" + ", ifi_index=" IFINDEX_LO_STR + ", ifi_flags=IFF_UP, ifi_change=0}" + ", {{nla_len=%u, nla_type=IFLA_XDP}", + msg_len, msg_len - NLMSG_SPACE(hdrlen)); +} + +int +main(void) +{ + skip_if_unavailable("/proc/self/fd/"); + + const int fd = create_nl_socket(NETLINK_ROUTE); + void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen)); + + static char pattern[4096]; + fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1); + + const int32_t num = 0xabacdbcd; + TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen, + init_ifinfomsg, print_ifinfomsg, + IFLA_XDP_FD, pattern, num, + printf("%d", num)); + +#ifdef XDP_FLAGS_UPDATE_IF_NOEXIST + const uint32_t flags = XDP_FLAGS_UPDATE_IF_NOEXIST; + TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen, + init_ifinfomsg, print_ifinfomsg, + IFLA_XDP_FLAGS, pattern, flags, + printf("XDP_FLAGS_UPDATE_IF_NOEXIST")); +#endif + + puts("+++ exited with 0 +++"); + return 0; +} diff --git a/tests/pure_executables.list b/tests/pure_executables.list index 91d96c8a..dade57b0 100755 --- a/tests/pure_executables.list +++ b/tests/pure_executables.list @@ -189,6 +189,7 @@ nlattr_ifaddrmsg nlattr_ifinfomsg nlattr_ifla_brport nlattr_ifla_port +nlattr_ifla_xdp nlattr_inet_diag_msg nlattr_inet_diag_req_compat nlattr_inet_diag_req_v2 -- 2.40.0