--- /dev/null
+/*
+ * Copyright (c) 2017 JingPiao Chen <chenjingpiao@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 "netlink.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <linux/inet_diag.h>
+#include <linux/rtnetlink.h>
+#include <linux/sock_diag.h>
+
+static void
+init_inet_diag_msg(struct nlmsghdr *nlh, unsigned int msg_len,
+ const char *address)
+{
+ struct inet_diag_msg *msg;
+
+ SET_STRUCT(struct nlmsghdr, nlh,
+ .nlmsg_len = msg_len,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP
+ );
+
+ msg = NLMSG_DATA(nlh);
+ SET_STRUCT(struct inet_diag_msg, msg,
+ .idiag_family = AF_INET,
+ .idiag_state = TCP_LISTEN
+ );
+
+ if (!inet_pton(AF_INET, address, msg->id.idiag_src) ||
+ !inet_pton(AF_INET, address, msg->id.idiag_dst))
+ perror_msg_and_skip("inet_pton");
+}
+
+static void
+test_inet_diag_meminfo(const int fd)
+{
+ const int hdrlen = sizeof(struct inet_diag_msg);
+ const char address[] = "87.65.43.21";
+ struct nlmsghdr *nlh;
+ struct nlattr *nla;
+ unsigned int nla_len;
+ unsigned int msg_len;
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
+ long rc;
+
+ /* len < sizeof(struct inet_diag_meminfo) */
+ nla_len = NLA_HDRLEN + 2;
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_MEMINFO
+ );
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_MEMINFO}"
+ ", \"12\"}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ msg_len, sprintrc(rc));
+
+ /* short read of inet_diag_meminfo */
+ nla_len = NLA_HDRLEN + sizeof(struct inet_diag_meminfo);
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - (nla_len - 1);
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_MEMINFO
+ );
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_MEMINFO}"
+ ", %p}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ RTA_DATA(nla), msg_len, sprintrc(rc));
+
+ /* inet_diag_meminfo */
+ nla_len = NLA_HDRLEN + sizeof(struct inet_diag_meminfo);
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_MEMINFO
+ );
+ static const struct inet_diag_meminfo minfo = {
+ .idiag_rmem = 0xfadcacdb,
+ .idiag_wmem = 0xbdabcada,
+ .idiag_fmem = 0xbadbfafb,
+ .idiag_tmem = 0xfdacdadf
+ };
+ memcpy(RTA_DATA(nla), &minfo, sizeof(minfo));
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_MEMINFO}"
+ ", {idiag_rmem=%u, idiag_wmem=%u, idiag_fmem=%u, idiag_tmem=%u}}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ minfo.idiag_rmem, minfo.idiag_wmem,
+ minfo.idiag_fmem, minfo.idiag_tmem,
+ msg_len, sprintrc(rc));
+}
+
+static void
+test_inet_diag_vegasinfo(const int fd)
+{
+ const int hdrlen = sizeof(struct inet_diag_msg);
+ const char address[] = "87.65.43.21";
+ struct nlmsghdr *nlh;
+ struct nlattr *nla;
+ unsigned int nla_len;
+ unsigned int msg_len;
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
+ long rc;
+
+ /* len < sizeof(struct tcpvegas_info) */
+ nla_len = NLA_HDRLEN + 2;
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_VEGASINFO
+ );
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_VEGASINFO}"
+ ", \"12\"}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ msg_len, sprintrc(rc));
+
+ /* short read of tcpvegas_info */
+ nla_len = NLA_HDRLEN + sizeof(struct tcpvegas_info);
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - (nla_len - 1);
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_VEGASINFO
+ );
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_VEGASINFO}"
+ ", %p}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ RTA_DATA(nla), msg_len, sprintrc(rc));
+
+ /* tcpvegas_info */
+ nla_len = NLA_HDRLEN + sizeof(struct tcpvegas_info);
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_VEGASINFO
+ );
+ static const struct tcpvegas_info vegas = {
+ .tcpv_enabled = 0xfadcacdb,
+ .tcpv_rttcnt = 0xbdabcada,
+ .tcpv_rtt = 0xbadbfafb,
+ .tcpv_minrtt = 0xfdacdadf
+ };
+ memcpy(RTA_DATA(nla), &vegas, sizeof(vegas));
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_VEGASINFO}"
+ ", {tcpv_enabled=%u, tcpv_rttcnt=%u, tcpv_rtt=%u"
+ ", tcpv_minrtt=%u}}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ vegas.tcpv_enabled, vegas.tcpv_rttcnt,
+ vegas.tcpv_rtt, vegas.tcpv_minrtt,
+ msg_len, sprintrc(rc));
+}
+
+static void
+test_inet_diag_skmeminfo(const int fd)
+{
+ const int hdrlen = sizeof(struct inet_diag_msg);
+ const char address[] = "87.65.43.21";
+ struct nlmsghdr *nlh;
+ struct nlattr *nla;
+ unsigned int nla_len;
+ unsigned int msg_len;
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
+ long rc;
+
+ /* len < sizeof(uint32_t) */
+ nla_len = NLA_HDRLEN + 2;
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_SKMEMINFO
+ );
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u"
+ ", nla_type=INET_DIAG_SKMEMINFO}, \"12\"}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ msg_len, sprintrc(rc));
+
+ /* len = sizeof(uint32_t) * 2 - 1 */
+ nla_len = NLA_HDRLEN + sizeof(uint32_t) * 2 - 1;
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_SKMEMINFO
+ );
+ static const uint32_t mem[] = { 0xaffacbad, 0xffadbcab };
+ memcpy(RTA_DATA(nla), mem, sizeof(mem[0]));
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_SKMEMINFO}"
+ ", [%u]}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ mem[0], msg_len, sprintrc(rc));
+
+ /* len = sizeof(uint32_t) * 2 */
+ nla_len = NLA_HDRLEN + sizeof(uint32_t) * 2;
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_SKMEMINFO
+ );
+ memcpy(RTA_DATA(nla), mem, sizeof(mem));
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_SKMEMINFO}"
+ ", [%u, %u]}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ mem[0], mem[1], msg_len, sprintrc(rc));
+}
+
+static void
+test_inet_diag_dctcpinfo(const int fd)
+{
+ const int hdrlen = sizeof(struct inet_diag_msg);
+ const char address[] = "87.65.43.21";
+ struct nlmsghdr *nlh;
+ struct nlattr *nla;
+ unsigned int nla_len;
+ unsigned int msg_len;
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
+ long rc;
+
+ /* len < sizeof(struct tcp_dctcp_info) */
+ nla_len = NLA_HDRLEN + 2;
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_DCTCPINFO
+ );
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_DCTCPINFO}"
+ ", \"12\"}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ msg_len, sprintrc(rc));
+
+ /* short read of tcp_dctcp_info */
+ nla_len = NLA_HDRLEN + sizeof(struct tcp_dctcp_info);
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - (nla_len - 1);
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_DCTCPINFO
+ );
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_DCTCPINFO}"
+ ", %p}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ RTA_DATA(nla), msg_len, sprintrc(rc));
+
+ /* tcp_dctcp_info */
+ nla_len = NLA_HDRLEN + sizeof(struct tcp_dctcp_info);
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_DCTCPINFO
+ );
+ static const struct tcp_dctcp_info dctcp = {
+ .dctcp_enabled = 0xfdac,
+ .dctcp_ce_state = 0xfadc,
+ .dctcp_alpha = 0xbdabcada,
+ .dctcp_ab_ecn = 0xbadbfafb,
+ .dctcp_ab_tot = 0xfdacdadf
+ };
+ memcpy(RTA_DATA(nla), &dctcp, sizeof(dctcp));
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_DCTCPINFO}"
+ ", {dctcp_enabled=%u, dctcp_ce_state=%u"
+ ", dctcp_alpha=%u, dctcp_ab_ecn=%u, dctcp_ab_tot=%u}}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ dctcp.dctcp_enabled, dctcp.dctcp_ce_state,
+ dctcp.dctcp_alpha, dctcp.dctcp_ab_ecn,
+ dctcp.dctcp_ab_tot, msg_len, sprintrc(rc));
+}
+
+static void
+test_inet_diag_bbrinfo(const int fd)
+{
+ const int hdrlen = sizeof(struct inet_diag_msg);
+ const char address[] = "12.34.56.78";
+ struct nlmsghdr *nlh;
+ struct nlattr *nla;
+ unsigned int nla_len;
+ unsigned int msg_len;
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
+ long rc;
+
+ /* len < sizeof(struct tcp_bbr_info) */
+ nla_len = NLA_HDRLEN + 2;
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_BBRINFO
+ );
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_BBRINFO}"
+ ", \"12\"}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ msg_len, sprintrc(rc));
+
+ /* short read of tcp_bbr_info */
+ nla_len = NLA_HDRLEN + sizeof(struct tcp_bbr_info);
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - (nla_len - 1);
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_BBRINFO
+ );
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_BBRINFO}"
+ ", %p}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ RTA_DATA(nla), msg_len, sprintrc(rc));
+
+ /* tcp_bbr_info */
+ nla_len = NLA_HDRLEN + sizeof(struct tcp_bbr_info);
+ msg_len = NLMSG_SPACE(hdrlen) + nla_len;
+ nlh = nlh0 - nla_len;
+ init_inet_diag_msg(nlh, msg_len, address);
+
+ nla = NLMSG_ATTR(nlh, hdrlen);
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = INET_DIAG_BBRINFO
+ );
+ static const struct tcp_bbr_info bbr = {
+ .bbr_bw_lo = 0xfdacdadf,
+ .bbr_bw_hi = 0xfadcacdb,
+ .bbr_min_rtt = 0xbdabcada,
+ .bbr_pacing_gain = 0xbadbfafb,
+ .bbr_cwnd_gain = 0xfdacdadf
+ };
+ memcpy(RTA_DATA(nla), &bbr, sizeof(bbr));
+
+ 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}, {idiag_family=AF_INET"
+ ", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
+ ", id={idiag_sport=htons(0), idiag_dport=htons(0)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_src)"
+ ", inet_pton(AF_INET, \"%s\", &idiag_dst)"
+ ", idiag_if=0, idiag_cookie=[0, 0]}, idiag_expires=0"
+ ", idiag_rqueue=0, idiag_wqueue=0, idiag_uid=0"
+ ", idiag_inode=0}, {{nla_len=%u, nla_type=INET_DIAG_BBRINFO}"
+ ", {bbr_bw_lo=%#x, bbr_bw_hi=%#x, bbr_min_rtt=%u"
+ ", bbr_pacing_gain=%u, bbr_cwnd_gain=%u}}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, msg_len, address, address, nla_len,
+ bbr.bbr_bw_lo, bbr.bbr_bw_hi, bbr.bbr_min_rtt,
+ bbr.bbr_pacing_gain, bbr.bbr_cwnd_gain,
+ msg_len, sprintrc(rc));
+}
+
+int main(void)
+{
+ skip_if_unavailable("/proc/self/fd/");
+
+ int fd = create_nl_socket(NETLINK_SOCK_DIAG);
+
+ test_inet_diag_meminfo(fd);
+ test_inet_diag_vegasinfo(fd);
+ test_inet_diag_skmeminfo(fd);
+ test_inet_diag_dctcpinfo(fd);
+ test_inet_diag_bbrinfo(fd);
+
+ printf("+++ exited with 0 +++\n");
+
+ return 0;
+}
projects / strace / commitdiff