From bf1a463c7924fb0ec1715e026ca51b63970a04a8 Mon Sep 17 00:00:00 2001 From: JingPiao Chen Date: Tue, 29 Aug 2017 21:04:19 +0800 Subject: [PATCH] tests: check decoding of IFLA_PROTINFO netlink attribute of ifinfomsg * tests/nlattr_ifla_brport.c: New file. * tests/gen_tests.in (nlattr_ifla_brport): New entry. * tests/pure_executables.list: Add nlattr_ifla_brport. * tests/.gitignore: Likewise. * tests/test_nlattr.h (TEST_NESTED_NLATTR_OBJECT): New macro. --- tests/.gitignore | 1 + tests/gen_tests.in | 1 + tests/nlattr_ifla_brport.c | 122 ++++++++++++++++++++++++++++++++++++ tests/pure_executables.list | 1 + tests/test_nlattr.h | 35 +++++++++++ 5 files changed, 160 insertions(+) create mode 100644 tests/nlattr_ifla_brport.c diff --git a/tests/.gitignore b/tests/.gitignore index 1d696629..6d4555d4 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -225,6 +225,7 @@ nlattr_fib_rule_hdr nlattr_ifaddrlblmsg nlattr_ifaddrmsg nlattr_ifinfomsg +nlattr_ifla_brport 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 ba156c30..1a9605b5 100644 --- a/tests/gen_tests.in +++ b/tests/gen_tests.in @@ -204,6 +204,7 @@ nlattr_fib_rule_hdr +netlink_sock_diag.test nlattr_ifaddrlblmsg +netlink_sock_diag.test nlattr_ifaddrmsg +netlink_sock_diag.test nlattr_ifinfomsg +netlink_sock_diag.test +nlattr_ifla_brport +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_brport.c b/tests/nlattr_ifla_brport.c new file mode 100644 index 00000000..ae7c9da9 --- /dev/null +++ b/tests/nlattr_ifla_brport.c @@ -0,0 +1,122 @@ +/* + * 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" +#include +#include +#ifdef HAVE_LINUX_IF_LINK_H +# include +#endif +#include + +#define IFLA_BRPORT_PRIORITY 2 +#define IFLA_BRPORT_MESSAGE_AGE_TIMER 21 + +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_PROTINFO + ); +} + +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_PROTINFO}", + 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 uint16_t u16 = 0xabcd; + TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen, + init_ifinfomsg, print_ifinfomsg, + IFLA_BRPORT_PRIORITY, pattern, u16, + printf("%u", u16)); + + const uint64_t u64 = 0xabcdedeeefeafeab; + TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen, + init_ifinfomsg, print_ifinfomsg, + IFLA_BRPORT_MESSAGE_AGE_TIMER, pattern, u64, + printf("%" PRIu64, u64)); + +#ifdef HAVE_STRUCT_IFLA_BRIDGE_ID + static const struct ifla_bridge_id id = { + .prio = { 0xab, 0xcd }, + .addr = { 0xab, 0xcd, 0xef, 0xac, 0xbc, 0xcd } + }; + TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen, + init_ifinfomsg, print_ifinfomsg, + IFLA_BRPORT_ROOT_ID, pattern, id, + printf("{prio=[%u, %u]" + ", addr=%02x:%02x:%02x:%02x:%02x:%02x}", + id.prio[0], id.prio[1], + id.addr[0], id.addr[1], id.addr[2], + id.addr[3], id.addr[4], id.addr[5])); +#endif + + puts("+++ exited with 0 +++"); + return 0; +} diff --git a/tests/pure_executables.list b/tests/pure_executables.list index 9ed80e25..a3b1c8c7 100755 --- a/tests/pure_executables.list +++ b/tests/pure_executables.list @@ -187,6 +187,7 @@ nlattr_fib_rule_hdr nlattr_ifaddrlblmsg nlattr_ifaddrmsg nlattr_ifinfomsg +nlattr_ifla_brport nlattr_inet_diag_msg nlattr_inet_diag_req_compat nlattr_inet_diag_req_v2 diff --git a/tests/test_nlattr.h b/tests/test_nlattr.h index c282167b..048d5475 100644 --- a/tests/test_nlattr.h +++ b/tests/test_nlattr.h @@ -202,3 +202,38 @@ print_nlattr(const unsigned int nla_len, const char *const nla_type) } \ printf("]")); \ } while (0) + +#define TEST_NESTED_NLATTR_OBJECT(fd_, nlh0_, hdrlen_, \ + init_msg_, print_msg_, \ + nla_type_, pattern_, obj_, ...) \ + do { \ + const unsigned int plen = \ + sizeof(obj_) - 1 > DEFAULT_STRLEN \ + ? DEFAULT_STRLEN : (int) sizeof(obj_) - 1; \ + /* len < sizeof(obj_) */ \ + TEST_NLATTR_((fd_), (nlh0_) - NLA_HDRLEN, \ + (hdrlen_) + NLA_HDRLEN, \ + (init_msg_), (print_msg_), \ + (nla_type_), #nla_type_, \ + plen, (pattern_), plen, \ + print_quoted_hex((pattern_), plen); \ + printf("}")); \ + /* short read of sizeof(obj_) */ \ + TEST_NLATTR_((fd_), (nlh0_) - NLA_HDRLEN, \ + (hdrlen_) + NLA_HDRLEN, \ + (init_msg_), (print_msg_), \ + (nla_type_), #nla_type_, \ + sizeof(obj_), \ + (pattern_), sizeof(obj_) - 1, \ + printf("%p}", \ + RTA_DATA(TEST_NLATTR_nla))); \ + /* sizeof(obj_) */ \ + TEST_NLATTR_((fd_), (nlh0_) - NLA_HDRLEN, \ + (hdrlen_) + NLA_HDRLEN, \ + (init_msg_), (print_msg_), \ + (nla_type_), #nla_type_, \ + sizeof(obj_), \ + &(obj_), sizeof(obj_), \ + __VA_ARGS__, \ + printf("}")); \ + } while (0) -- 2.40.0