*/
#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 "test_nlattr.h"
#include <linux/inet_diag.h>
-#include <linux/rtnetlink.h>
#include <linux/sock_diag.h>
+static const char address[] = "10.11.12.13";
+
static void
-init_inet_diag_msg(struct nlmsghdr *nlh, unsigned int msg_len,
- const char *address)
+init_inet_diag_msg(struct nlmsghdr *const nlh, const unsigned int msg_len)
{
- 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);
+ struct inet_diag_msg *const msg = NLMSG_DATA(nlh);
SET_STRUCT(struct inet_diag_msg, msg,
.idiag_family = AF_INET,
.idiag_state = TCP_LISTEN
}
static void
-test_inet_diag_meminfo(const int fd)
+print_inet_diag_msg(const unsigned int msg_len)
{
- 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"
+ printf("{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_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);
+ ", idiag_inode=0}",
+ msg_len, address, address);
+}
- nla = NLMSG_ATTR(nlh, hdrlen);
- SET_STRUCT(struct nlattr, nla,
- .nla_len = nla_len,
- .nla_type = INET_DIAG_MEMINFO
- );
+static void
+print_uint(const unsigned int *p)
+{
+ printf("%u", *p);
+}
- rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+int
+main(void)
+{
+ skip_if_unavailable("/proc/self/fd/");
- 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));
+ const int fd = create_nl_socket(NETLINK_SOCK_DIAG);
+ const unsigned int hdrlen = sizeof(struct inet_diag_msg);
+ void *const nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
- /* 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);
+#define DEFAULT_STRLEN 32
+ static char pattern[DEFAULT_STRLEN];
+ fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
- 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));
+ TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_inet_diag_msg, print_inet_diag_msg,
+ INET_DIAG_MEMINFO, pattern, minfo,
+ PRINT_FIELD_U("{", minfo, idiag_rmem);
+ PRINT_FIELD_U(", ", minfo, idiag_wmem);
+ PRINT_FIELD_U(", ", minfo, idiag_fmem);
+ PRINT_FIELD_U(", ", minfo, idiag_tmem);
+ printf("}"));
- /* 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;
+ TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_inet_diag_msg, print_inet_diag_msg,
+ INET_DIAG_VEGASINFO, pattern, vegas,
+ PRINT_FIELD_U("{", vegas, tcpv_enabled);
+ PRINT_FIELD_U(", ", vegas, tcpv_rttcnt);
+ PRINT_FIELD_U(", ", vegas, tcpv_rtt);
+ PRINT_FIELD_U(", ", vegas, tcpv_minrtt);
+ printf("}"));
- /* 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_ab_ecn = 0xbadbfafb,
.dctcp_ab_tot = 0xfdacdadf
};
- memcpy(RTA_DATA(nla), &dctcp, sizeof(dctcp));
+ TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_inet_diag_msg, print_inet_diag_msg,
+ INET_DIAG_DCTCPINFO, pattern, dctcp,
+ PRINT_FIELD_U("{", dctcp, dctcp_enabled);
+ PRINT_FIELD_U(", ", dctcp, dctcp_ce_state);
+ PRINT_FIELD_U(", ", dctcp, dctcp_alpha);
+ PRINT_FIELD_U(", ", dctcp, dctcp_ab_ecn);
+ PRINT_FIELD_U(", ", dctcp, dctcp_ab_tot);
+ printf("}"));
- 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_pacing_gain = 0xbadbfafb,
.bbr_cwnd_gain = 0xfdacdadf
};
- memcpy(RTA_DATA(nla), &bbr, sizeof(bbr));
-
- rc = sendto(fd, nlh, msg_len, MSG_DONTWAIT, NULL, 0);
+ TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_inet_diag_msg, print_inet_diag_msg,
+ INET_DIAG_BBRINFO, pattern, bbr,
+ PRINT_FIELD_X("{", bbr, bbr_bw_lo);
+ PRINT_FIELD_X(", ", bbr, bbr_bw_hi);
+ PRINT_FIELD_U(", ", bbr, bbr_min_rtt);
+ PRINT_FIELD_U(", ", bbr, bbr_pacing_gain);
+ PRINT_FIELD_U(", ", bbr, bbr_cwnd_gain);
+ printf("}"));
- 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");
+ static const uint32_t mem[] = { 0xaffacbad, 0xffadbcab };
+ TEST_NLATTR_ARRAY(fd, nlh0, hdrlen,
+ init_inet_diag_msg, print_inet_diag_msg,
+ INET_DIAG_SKMEMINFO, pattern, mem, print_uint);
+ puts("+++ exited with 0 +++");
return 0;
}
--- /dev/null
+/*
+ * 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 <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include "netlink.h"
+#include <linux/rtnetlink.h>
+
+static void
+init_nlattr(struct nlattr *const nla,
+ const uint16_t nla_len,
+ const uint16_t nla_type,
+ const void *const src,
+ const size_t n)
+{
+ SET_STRUCT(struct nlattr, nla,
+ .nla_len = nla_len,
+ .nla_type = nla_type,
+ );
+
+ memcpy(RTA_DATA(nla), src, n);
+}
+
+static void
+print_nlattr(const unsigned int nla_len, const char *const nla_type)
+{
+ printf(", {{nla_len=%u, nla_type=%s}, ", nla_len, nla_type);
+}
+
+#define TEST_NLATTR_(fd_, nlh0_, hdrlen_, \
+ init_msg_, print_msg_, \
+ nla_type_, nla_type_str_, \
+ nla_data_len_, src_, slen_, ...) \
+ do { \
+ struct nlmsghdr *const nlh = \
+ (nlh0_) - (NLA_HDRLEN + (slen_)); \
+ struct nlattr *const nla = NLMSG_ATTR(nlh, (hdrlen_)); \
+ const unsigned int nla_len = \
+ NLA_HDRLEN + (nla_data_len_); \
+ const unsigned int msg_len = \
+ NLMSG_SPACE(hdrlen_) + nla_len; \
+ \
+ (init_msg_)(nlh, msg_len); \
+ init_nlattr(nla, nla_len, (nla_type_), \
+ (src_), (slen_)); \
+ \
+ const char *const errstr = \
+ sprintrc(sendto((fd_), nlh, msg_len, \
+ MSG_DONTWAIT, NULL, 0)); \
+ \
+ printf("sendto(%d, {", (fd_)); \
+ (print_msg_)(msg_len); \
+ print_nlattr(nla_len, (nla_type_str_)); \
+ \
+ { __VA_ARGS__; } \
+ \
+ printf("}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n", \
+ msg_len, errstr); \
+ } while (0)
+
+#define TEST_NLATTR(fd_, nlh0_, hdrlen_, \
+ init_msg_, print_msg_, \
+ nla_type_, \
+ nla_data_len_, src_, slen_, ...) \
+ TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
+ (init_msg_), (print_msg_), \
+ (nla_type_), #nla_type_, \
+ (nla_data_len_), (src_), (slen_), __VA_ARGS__)
+
+#define TEST_NLATTR_OBJECT(fd_, nlh0_, hdrlen_, \
+ init_msg_, print_msg_, \
+ nla_type_, pattern_, obj_, ...) \
+ do { \
+ /* len < sizeof(obj_) */ \
+ TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
+ (init_msg_), (print_msg_), \
+ (nla_type_), #nla_type_, \
+ sizeof(obj_) - 1, \
+ (pattern_), sizeof(obj_) - 1, \
+ printf("\"%.*s\"", \
+ (int) sizeof(obj_) - 1, (pattern_))); \
+ /* short read of sizeof(obj_) */ \
+ TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
+ (init_msg_), (print_msg_), \
+ (nla_type_), #nla_type_, \
+ sizeof(obj_), \
+ (pattern_), sizeof(obj_) - 1, \
+ printf("%p", \
+ RTA_DATA(NLMSG_ATTR(nlh, (hdrlen_))))); \
+ /* sizeof(obj_) */ \
+ TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
+ (init_msg_), (print_msg_), \
+ (nla_type_), #nla_type_, \
+ sizeof(obj_), \
+ &(obj_), sizeof(obj_), \
+ __VA_ARGS__); \
+ } while (0)
+
+#define TEST_NLATTR_ARRAY(fd_, nlh0_, hdrlen_, \
+ init_msg_, print_msg_, \
+ nla_type_, pattern_, obj_, print_elem_) \
+ do { \
+ /* len < sizeof((obj_)[0]) */ \
+ TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
+ (init_msg_), (print_msg_), \
+ (nla_type_), #nla_type_, \
+ sizeof((obj_)[0]) - 1, \
+ (pattern_), sizeof((obj_)[0]) - 1, \
+ printf("\"%.*s\"", \
+ (int) sizeof((obj_)[0]) - 1, \
+ (pattern_))); \
+ /* sizeof((obj_)[0]) < len < sizeof(obj_) */ \
+ TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
+ (init_msg_), (print_msg_), \
+ (nla_type_), #nla_type_, \
+ sizeof(obj_) - 1, \
+ &(obj_), sizeof(obj_) - 1, \
+ printf("["); \
+ size_t i; \
+ for (i = 0; i < ARRAY_SIZE(obj_) - 1; ++i) { \
+ if (i) printf(", "); \
+ (print_elem_)(&(obj_)[i]); \
+ } \
+ printf("]")); \
+ /* short read of sizeof(obj_) */ \
+ TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
+ (init_msg_), (print_msg_), \
+ (nla_type_), #nla_type_, \
+ sizeof(obj_), \
+ &(obj_), sizeof(obj_) - 1, \
+ printf("["); \
+ size_t i; \
+ for (i = 0; i < ARRAY_SIZE(obj_) - 1; ++i) { \
+ if (i) printf(", "); \
+ (print_elem_)(&(obj_)[i]); \
+ } \
+ printf(", %p]", \
+ RTA_DATA(NLMSG_ATTR(nlh, (hdrlen_))) \
+ + sizeof((obj_)[0]))); \
+ /* sizeof(obj_) */ \
+ TEST_NLATTR_((fd_), (nlh0_), (hdrlen_), \
+ (init_msg_), (print_msg_), \
+ (nla_type_), #nla_type_, \
+ sizeof(obj_), \
+ &(obj_), sizeof(obj_), \
+ printf("["); \
+ size_t i; \
+ for (i = 0; i < ARRAY_SIZE(obj_); ++i) { \
+ if (i) printf(", "); \
+ (print_elem_)(&(obj_)[i]); \
+ } \
+ printf("]")); \
+ } while (0)
+
+#define PRINT_FIELD_U(prefix_, where_, field_) \
+ printf("%s%s=%u", (prefix_), #field_, ((where_).field_))
+
+#define PRINT_FIELD_X(prefix_, where_, field_) \
+ printf("%s%s=%#x", (prefix_), #field_, ((where_).field_))
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