[PATCH 06/10] tests: check decoding of NETLINK_SOCK_DIAG AF_PACKET diag attributes
JingPiao Chen
chenjingpiao at gmail.com
Wed Jun 21 02:42:19 UTC 2017
* tests/nlattr_packet_diag.c: New file.
* tests/gen_tests.in (nlattr_packet_diag): New entry.
* tests/pure_executables.list: Add nlattr_packet_diag.
* tests/.gitignore: Likewise.
---
tests/.gitignore | 1 +
tests/gen_tests.in | 1 +
tests/nlattr_packet_diag.c | 412 ++++++++++++++++++++++++++++++++++++++++++++
tests/pure_executables.list | 1 +
4 files changed, 415 insertions(+)
create mode 100644 tests/nlattr_packet_diag.c
diff --git a/tests/.gitignore b/tests/.gitignore
index d14ba53..7093830 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -212,6 +212,7 @@ newfstatat
nlattr
nlattr_inet_diag
nlattr_netlink_diag
+nlattr_packet_diag
nlattr_unix_diag
nsyscalls
old_mmap
diff --git a/tests/gen_tests.in b/tests/gen_tests.in
index 1b8969f..4ac7d98 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 +netlink_sock_diag.test
nlattr_netlink_diag +netlink_sock_diag.test
+nlattr_packet_diag +netlink_sock_diag.test
nlattr_unix_diag +netlink_sock_diag.test
old_mmap -a11 -e trace=mmap
oldfstat -a18 -v -P stat.sample
diff --git a/tests/nlattr_packet_diag.c b/tests/nlattr_packet_diag.c
new file mode 100644
index 0000000..a322ffd
--- /dev/null
+++ b/tests/nlattr_packet_diag.c
@@ -0,0 +1,412 @@
+/*
+ * Copyright (c) 2017 JingPiao Chen <chenjingpiao at gmail.com>
+ * 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 <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <linux/filter.h>
+#include <linux/netlink.h>
+#include <linux/packet_diag.h>
+#include <linux/rtnetlink.h>
+#include <linux/sock_diag.h>
+
+#if !defined NETLINK_SOCK_DIAG && defined NETLINK_INET_DIAG
+# define NETLINK_SOCK_DIAG NETLINK_INET_DIAG
+#endif
+
+static void
+test_packet_diag_info(const int fd)
+{
+ struct nlmsghdr *nlh;
+ struct packet_diag_msg *msg;
+ struct nlattr *nla;
+ struct packet_diag_info *pinfo;
+ int nla_len;
+ unsigned int msg_len;
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(sizeof(*msg)));
+ long rc;
+
+ /* len < sizeof(*pinfo) */
+ nla_len = NLA_HDRLEN + 2;
+ msg_len = NLMSG_SPACE(sizeof(*msg)) + nla_len;
+ nlh = nlh0 - nla_len;
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ msg = NLMSG_DATA(nlh);
+ *msg = (struct packet_diag_msg) {
+ .pdiag_family = AF_PACKET,
+ .pdiag_type = SOCK_STREAM,
+ };
+
+ nla = (void *) nlh + NLMSG_SPACE(sizeof(*msg));
+ *nla = (struct nlattr) {
+ .nla_len = nla_len,
+ .nla_type = PACKET_DIAG_INFO
+ };
+ memcpy(RTA_DATA(nla), "12", 2);
+
+ rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{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]}, {{nla_len=%u"
+ ", nla_type=PACKET_DIAG_INFO}, \"12\"}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, nla->nla_len, msg_len, sprintrc(rc));
+
+ /* short read of packet_diag_info */
+ nla_len = NLA_HDRLEN + sizeof(*pinfo);
+ msg_len = NLMSG_SPACE(sizeof(*msg)) + nla_len;
+ nlh = nlh0 - (nla_len - 1);
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ msg = NLMSG_DATA(nlh);
+ *msg = (struct packet_diag_msg) {
+ .pdiag_family = AF_PACKET,
+ .pdiag_type = SOCK_STREAM,
+ };
+
+ nla = (void *) nlh + NLMSG_SPACE(sizeof(*msg));
+ *nla = (struct nlattr) {
+ .nla_len = nla_len,
+ .nla_type = PACKET_DIAG_INFO
+ };
+
+ rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{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]}, {{nla_len=%u"
+ ", nla_type=PACKET_DIAG_INFO}, %p}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, nla->nla_len, RTA_DATA(nla),
+ msg_len, sprintrc(rc));
+
+ /* packet_diag_info */
+ nla_len = NLA_HDRLEN + sizeof(*pinfo);
+ msg_len = NLMSG_SPACE(sizeof(*msg)) + nla_len;
+ nlh = nlh0 - nla_len;
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ msg = NLMSG_DATA(nlh);
+ *msg = (struct packet_diag_msg) {
+ .pdiag_family = AF_PACKET,
+ .pdiag_type = SOCK_STREAM,
+ };
+
+ nla = (void *) nlh + NLMSG_SPACE(sizeof(*msg));
+ *nla = (struct nlattr) {
+ .nla_len = nla_len,
+ .nla_type = PACKET_DIAG_INFO
+ };
+ pinfo = RTA_DATA(nla);
+ *pinfo = (struct packet_diag_info) {
+ .pdi_index = 0xabcddafa,
+ .pdi_version = 0xbabcdafb,
+ .pdi_reserve = 0xcfaacdaf,
+ .pdi_copy_thresh = 0xdabacdaf,
+ .pdi_tstamp = 0xeafbaadf,
+ .pdi_flags = PDI_RUNNING
+ };
+
+ rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{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]}, {{nla_len=%u"
+ ", nla_type=PACKET_DIAG_INFO}, {pdi_index=%u, pdi_version=%u"
+ ", pdi_reserve=%u, pdi_copy_thresh=%u, pdi_tstamp=%u"
+ ", pdi_flags=PDI_RUNNING}}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, nla->nla_len, 0xabcddafa,
+ 0xbabcdafb, 0xcfaacdaf, 0xdabacdaf, 0xeafbaadf,
+ msg_len, sprintrc(rc));
+}
+
+static void
+test_packet_diag_mclist(const int fd)
+{
+ struct nlmsghdr *nlh;
+ struct packet_diag_msg *msg;
+ struct nlattr *nla;
+ struct packet_diag_mclist *dml;
+ int nla_len;
+ unsigned int msg_len;
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(sizeof(*msg)));
+ long rc;
+
+ nla_len = NLA_HDRLEN + sizeof(*dml);
+ msg_len = NLMSG_SPACE(sizeof(*msg)) + nla_len;
+ nlh = nlh0 - nla_len;
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ msg = NLMSG_DATA(nlh);
+ *msg = (struct packet_diag_msg) {
+ .pdiag_family = AF_PACKET,
+ .pdiag_type = SOCK_STREAM,
+ };
+
+ nla = (void *) nlh + NLMSG_SPACE(sizeof(*msg));
+ *nla = (struct nlattr) {
+ .nla_len = nla_len,
+ .nla_type = PACKET_DIAG_MCLIST
+ };
+ dml = RTA_DATA(nla);
+ *dml = (struct packet_diag_mclist) {
+ .pdmc_index = 0xfbacdafb,
+ .pdmc_count = 0xabcdaefc,
+ .pdmc_type = 0xcdaf,
+ .pdmc_alen = 0xeacd,
+ };
+ memcpy(dml->pdmc_addr, "1234", 5);
+
+ rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{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]}, {{nla_len=%u"
+ ", nla_type=PACKET_DIAG_MCLIST}, [{pdmc_index=%u, pdmc_count=%u"
+ ", pdmc_type=%u, pdmc_alen=%u, pdmc_addr=\"1234\"}]}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, nla->nla_len, 0xfbacdafb, 0xabcdaefc,
+ 0xcdaf, 0xeacd, msg_len, sprintrc(rc));
+}
+
+static void
+test_packet_diag_rx_ring(const int fd)
+{
+ struct nlmsghdr *nlh;
+ struct packet_diag_msg *msg;
+ struct nlattr *nla;
+ struct packet_diag_ring *pdr;
+ int nla_len;
+ unsigned int msg_len;
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(sizeof(*msg)));
+ long rc;
+
+ /* len < sizeof(*pdr) */
+ nla_len = NLA_HDRLEN + 2;
+ nlh = nlh0 - nla_len;
+ msg_len = NLMSG_SPACE(sizeof(*msg)) + nla_len;
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ msg = NLMSG_DATA(nlh);
+ *msg = (struct packet_diag_msg) {
+ .pdiag_family = AF_PACKET,
+ .pdiag_type = SOCK_STREAM,
+ };
+
+ nla = (void *) nlh + NLMSG_SPACE(sizeof(*msg));
+ *nla = (struct nlattr) {
+ .nla_len = nla_len,
+ .nla_type = PACKET_DIAG_RX_RING
+ };
+ memcpy(RTA_DATA(nla), "12", 2);
+
+ rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{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]}, {{nla_len=%u"
+ ", nla_type=PACKET_DIAG_RX_RING}, \"12\"}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, nla->nla_len, msg_len, sprintrc(rc));
+
+ /* short read of packet_diag_ring */
+ nla_len = NLA_HDRLEN + sizeof(*pdr);
+ msg_len = NLMSG_SPACE(sizeof(*msg)) + nla_len;
+ nlh = nlh0 - (nla_len - 1);
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ msg = NLMSG_DATA(nlh);
+ *msg = (struct packet_diag_msg) {
+ .pdiag_family = AF_PACKET,
+ .pdiag_type = SOCK_STREAM,
+ };
+
+ nla = (void *) nlh + NLMSG_SPACE(sizeof(*msg));
+ *nla = (struct nlattr) {
+ .nla_len = nla_len,
+ .nla_type = PACKET_DIAG_RX_RING
+ };
+
+ rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{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]}, {{nla_len=%u"
+ ", nla_type=PACKET_DIAG_RX_RING}, %p}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, nla->nla_len, RTA_DATA(nla),
+ msg_len, sprintrc(rc));
+
+ /* packet_diag_ring */
+ nla_len = NLA_HDRLEN + sizeof(*pdr);
+ msg_len = NLMSG_SPACE(sizeof(*msg)) + nla_len;
+ nlh = nlh0 - nla_len;
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ msg = NLMSG_DATA(nlh);
+ *msg = (struct packet_diag_msg) {
+ .pdiag_family = AF_PACKET,
+ .pdiag_type = SOCK_STREAM,
+ };
+
+ nla = (void *) nlh + NLMSG_SPACE(sizeof(*msg));
+ *nla = (struct nlattr) {
+ .nla_len = nla_len,
+ .nla_type = PACKET_DIAG_RX_RING
+ };
+ pdr = RTA_DATA(nla);
+ *pdr = (struct packet_diag_ring) {
+ .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
+ };
+
+ rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{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]}, {{nla_len=%u"
+ ", nla_type=PACKET_DIAG_RX_RING}, {pdr_block_size=%u"
+ ", pdr_block_nr=%u, pdr_frame_size=%u, pdr_frame_nr=%u"
+ ", pdr_retire_tmo=%u, pdr_sizeof_priv=%u"
+ ", pdr_features=%u}}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, nla->nla_len, 0xabcdafed, 0xbcadefae,
+ 0xcabdfeac, 0xdeaeadef, 0xedbafeac, 0xfeadeacd,
+ 0xadebadea, msg_len, sprintrc(rc));
+}
+
+static void
+test_packet_diag_filter(const int fd)
+{
+ struct nlmsghdr *nlh;
+ struct packet_diag_msg *msg;
+ struct nlattr *nla;
+ struct sock_filter *filter;
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(sizeof(*msg)));
+ int nla_len;
+ unsigned int msg_len;
+ long rc;
+
+ nla_len = NLA_HDRLEN + sizeof(*filter);
+ msg_len = NLMSG_SPACE(sizeof(*msg)) + nla_len;
+ nlh = nlh0 - nla_len;
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ msg = NLMSG_DATA(nlh);
+ *msg = (struct packet_diag_msg) {
+ .pdiag_family = AF_PACKET,
+ .pdiag_type = SOCK_STREAM,
+ };
+
+ nla = (void *) nlh + NLMSG_SPACE(sizeof(*msg));
+ *nla = (struct nlattr) {
+ .nla_len = nla_len,
+ .nla_type = PACKET_DIAG_FILTER
+ };
+ filter = RTA_DATA(nla);
+ *filter = (struct sock_filter) {
+ .code = 0xdacd,
+ .jt = 0xda,
+ .jf = 0xbd,
+ .k = 0xabcdfead
+ };
+
+ rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{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]}, {{nla_len=%u"
+ ", nla_type=PACKET_DIAG_FILTER}, [{code=%u, jt=%u"
+ ", jf=%u, k=%u}]}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, nla->nla_len, 0xdacd, 0xda, 0xbd,
+ 0xabcdfead, msg_len, sprintrc(rc));
+}
+
+int main(void)
+{
+ skip_if_unavailable("/proc/self/fd/");
+
+ int fd = create_nl_socket(NETLINK_SOCK_DIAG);
+
+ test_packet_diag_info(fd);
+ test_packet_diag_mclist(fd);
+ test_packet_diag_rx_ring(fd);
+ test_packet_diag_filter(fd);
+
+ printf("+++ exited with 0 +++\n");
+
+ return 0;
+}
diff --git a/tests/pure_executables.list b/tests/pure_executables.list
index b1efac2..ce3ac72 100755
--- a/tests/pure_executables.list
+++ b/tests/pure_executables.list
@@ -177,6 +177,7 @@ newfstatat
nlattr
nlattr_inet_diag
nlattr_netlink_diag
+nlattr_packet_diag
nlattr_unix_diag
old_mmap
oldfstat
--
2.7.4
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