From a0470d7848666a2ad0cfde4fa6edbc616d3418e7 Mon Sep 17 00:00:00 2001 From: JingPiao Chen Date: Mon, 26 Jun 2017 08:28:56 +0800 Subject: [PATCH] tests: check decoding of packet_diag_msg attributes * tests/netlink_sock_diag-v.sh: New file. * tests/Makefile.am (EXTRA_DIST): Add it. * tests/nlattr_packet_diag_msg.c: New file. * tests/gen_tests.in (nlattr_packet_diag_msg): New entry. * tests/pure_executables.list: Add nlattr_packet_diag_msg. * tests/.gitignore: Likewise. Co-authored-by: Dmitry V. Levin --- tests/.gitignore | 1 + tests/Makefile.am | 1 + tests/gen_tests.in | 1 + tests/netlink_sock_diag-v.sh | 33 ++++++ tests/nlattr_packet_diag_msg.c | 181 +++++++++++++++++++++++++++++++++ tests/pure_executables.list | 1 + 6 files changed, 218 insertions(+) create mode 100755 tests/netlink_sock_diag-v.sh create mode 100644 tests/nlattr_packet_diag_msg.c diff --git a/tests/.gitignore b/tests/.gitignore index 34423132..66c4d163 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -212,6 +212,7 @@ newfstatat nlattr nlattr_inet_diag_msg nlattr_netlink_diag_msg +nlattr_packet_diag_msg nlattr_unix_diag_msg nsyscalls old_mmap diff --git a/tests/Makefile.am b/tests/Makefile.am index 19b7400f..579c78a2 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -317,6 +317,7 @@ EXTRA_DIST = \ lstatx.c \ match.awk \ net.expected \ + netlink_sock_diag-v.sh \ oldselect.expected \ pipe.expected \ process_vm_readv_writev.c \ diff --git a/tests/gen_tests.in b/tests/gen_tests.in index 986b9cc4..a719409f 100644 --- a/tests/gen_tests.in +++ b/tests/gen_tests.in @@ -195,6 +195,7 @@ newfstatat -a32 -v -P stat.sample -P /dev/full nlattr +netlink_sock_diag.test nlattr_inet_diag_msg +netlink_sock_diag.test nlattr_netlink_diag_msg +netlink_sock_diag.test +nlattr_packet_diag_msg +netlink_sock_diag-v.sh nlattr_unix_diag_msg +netlink_sock_diag.test old_mmap -a11 -e trace=mmap oldfstat -a18 -v -P stat.sample diff --git a/tests/netlink_sock_diag-v.sh b/tests/netlink_sock_diag-v.sh new file mode 100755 index 00000000..0471ae33 --- /dev/null +++ b/tests/netlink_sock_diag-v.sh @@ -0,0 +1,33 @@ +#!/bin/sh +# +# Check verbose decoding of NETLINK_SOCK_DIAG protocol +# +# 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. + +. "${srcdir=.}/init.sh" + +run_prog ../netlink_netlink_diag +run_strace_match_diff -v -e trace=sendto diff --git a/tests/nlattr_packet_diag_msg.c b/tests/nlattr_packet_diag_msg.c new file mode 100644 index 00000000..a80c00c8 --- /dev/null +++ b/tests/nlattr_packet_diag_msg.c @@ -0,0 +1,181 @@ +/* + * 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 +#include +#include "test_nlattr.h" +#include +#include +#include +#include +#include + +#ifdef HAVE_IF_INDEXTONAME +# define IFINDEX_LO (if_nametoindex("lo")) +#else +# define IFINDEX_LO 1 +#endif + +static void +init_packet_diag_msg(struct nlmsghdr *const nlh, const unsigned int msg_len) +{ + SET_STRUCT(struct nlmsghdr, nlh, + .nlmsg_len = msg_len, + .nlmsg_type = SOCK_DIAG_BY_FAMILY, + .nlmsg_flags = NLM_F_DUMP + ); + + struct packet_diag_msg *const msg = NLMSG_DATA(nlh); + *msg = (struct packet_diag_msg) { + .pdiag_family = AF_PACKET, + .pdiag_type = SOCK_STREAM + }; +} + +static void +print_packet_diag_msg(const unsigned int msg_len) +{ + printf("{len=%u, type=SOCK_DIAG_BY_FAMILY" + ", flags=NLM_F_DUMP, seq=0, pid=0}" + ", {pdiag_family=AF_PACKET" + ", pdiag_type=SOCK_STREAM, pdiag_num=0" + ", pdiag_ino=0, pdiag_cookie=[0, 0]}", + msg_len); +} + +static void +print_packet_diag_mclist(const struct packet_diag_mclist *const dml) +{ + printf("{pdmc_index=if_nametoindex(\"lo\")"); + PRINT_FIELD_U(", ", *dml, pdmc_count); + PRINT_FIELD_U(", ", *dml, pdmc_type); + PRINT_FIELD_U(", ", *dml, pdmc_alen); + printf(", pdmc_addr="); + print_quoted_hex(dml->pdmc_addr, dml->pdmc_alen); + printf("}"); +} + +static const struct sock_filter filter[] = { + BPF_STMT(BPF_LD|BPF_B|BPF_ABS, SKF_AD_OFF+SKF_AD_PKTTYPE), + BPF_STMT(BPF_RET|BPF_K, 0x2a) +}; + +static void +print_sock_filter(const struct sock_filter *const f) +{ + if (f == filter) + printf("BPF_STMT(BPF_LD|BPF_B|BPF_ABS" + ", SKF_AD_OFF+SKF_AD_PKTTYPE)"); + else + printf("BPF_STMT(BPF_RET|BPF_K, 0x2a)"); +} + +int +main(void) +{ + skip_if_unavailable("/proc/self/fd/"); + + int fd = create_nl_socket(NETLINK_SOCK_DIAG); + const unsigned int hdrlen = sizeof(struct packet_diag_msg); + void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen)); + + static char pattern[4096]; + fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1); + + static const struct packet_diag_info pinfo = { + .pdi_index = 0xabcddafa, + .pdi_version = 0xbabcdafb, + .pdi_reserve = 0xcfaacdaf, + .pdi_copy_thresh = 0xdabacdaf, + .pdi_tstamp = 0xeafbaadf, + .pdi_flags = PDI_RUNNING + }; + TEST_NLATTR_OBJECT(fd, nlh0, hdrlen, + init_packet_diag_msg, print_packet_diag_msg, + PACKET_DIAG_INFO, pattern, pinfo, + PRINT_FIELD_U("{", pinfo, pdi_index); + PRINT_FIELD_U(", ", pinfo, pdi_version); + PRINT_FIELD_U(", ", pinfo, pdi_reserve); + PRINT_FIELD_U(", ", pinfo, pdi_copy_thresh); + PRINT_FIELD_U(", ", pinfo, pdi_tstamp); + printf(", pdi_flags=PDI_RUNNING}")); + + const struct packet_diag_mclist dml[] = { + { + .pdmc_index = IFINDEX_LO, + .pdmc_count = 0xabcdaefc, + .pdmc_type = 0xcdaf, + .pdmc_alen = 4, + .pdmc_addr = "1234" + }, + { + .pdmc_index = IFINDEX_LO, + .pdmc_count = 0xdaefeafc, + .pdmc_type = 0xadef, + .pdmc_alen = 4, + .pdmc_addr = "5678" + } + }; + TEST_NLATTR_ARRAY(fd, nlh0, hdrlen, + init_packet_diag_msg, print_packet_diag_msg, + PACKET_DIAG_MCLIST, pattern, dml, + print_packet_diag_mclist); + + static const struct packet_diag_ring pdr = { + .pdr_block_size = 0xabcdafed, + .pdr_block_nr = 0xbcadefae, + .pdr_frame_size = 0xcabdfeac, + .pdr_frame_nr = 0xdeaeadef, + .pdr_retire_tmo = 0xedbafeac, + .pdr_sizeof_priv = 0xfeadeacd, + .pdr_features = 0xadebadea + }; + TEST_NLATTR_OBJECT(fd, nlh0, hdrlen, + init_packet_diag_msg, print_packet_diag_msg, + PACKET_DIAG_RX_RING, pattern, pdr, + PRINT_FIELD_U("{", pdr, pdr_block_size); + PRINT_FIELD_U(", ", pdr, pdr_block_nr); + PRINT_FIELD_U(", ", pdr, pdr_frame_size); + PRINT_FIELD_U(", ", pdr, pdr_frame_nr); + PRINT_FIELD_U(", ", pdr, pdr_retire_tmo); + PRINT_FIELD_U(", ", pdr, pdr_sizeof_priv); + PRINT_FIELD_U(", ", pdr, pdr_features); + printf("}")); + + TEST_NLATTR_ARRAY(fd, nlh0, hdrlen, + init_packet_diag_msg, print_packet_diag_msg, + PACKET_DIAG_FILTER, pattern, filter, + print_sock_filter); + + printf("+++ exited with 0 +++\n"); + return 0; +} diff --git a/tests/pure_executables.list b/tests/pure_executables.list index aca5b1ce..65c4a91a 100755 --- a/tests/pure_executables.list +++ b/tests/pure_executables.list @@ -177,6 +177,7 @@ newfstatat nlattr nlattr_inet_diag_msg nlattr_netlink_diag_msg +nlattr_packet_diag_msg nlattr_unix_diag_msg old_mmap oldfstat -- 2.40.0