* tests/netlink_sock_diag.c: Include <linux/netlink_diag.h>.
(test_netlink_diag_req, test_netlink_diag_msg): New functions.
(main): Use them.
Co-authored-by: Fabien Siron <fabien.si...@epita.fr>
---
tests/netlink_sock_diag.c | 242 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 242 insertions(+)
diff --git a/tests/netlink_sock_diag.c b/tests/netlink_sock_diag.c
index 63e7c3f..87a6d00 100644
--- a/tests/netlink_sock_diag.c
+++ b/tests/netlink_sock_diag.c
@@ -35,6 +35,7 @@
#include <sys/socket.h>
#include <netinet/tcp.h>
#include <linux/netlink.h>
+#include <linux/netlink_diag.h>
#include <linux/sock_diag.h>
#include <linux/unix_diag.h>
@@ -314,6 +315,245 @@ test_unix_diag_msg(const int fd)
sprintrc(rc));
}
+static void
+test_netlink_diag_req(const int fd)
+{
+ struct nlmsghdr *nlh;
+ struct netlink_diag_req *req;
+ uint8_t *family;
+ void *const nlh0 = tail_alloc(NLMSG_HDRLEN);
+ long rc;
+
+ /* print family only */
+ nlh = nlh0 - sizeof(*family);
+ *nlh = (struct nlmsghdr) {
+ .nlmsg_len = NLMSG_HDRLEN + sizeof(*family),
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_REQUEST,
+ };
+ family = NLMSG_DATA(nlh);
+ *family = AF_NETLINK;
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*family), MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_REQUEST, seq=0, pid=0}, {family=AF_NETLINK}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ sprintrc(rc));
+
+ /* print unknown family */
+ *family = 0xff;
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*family), MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_REQUEST, seq=0, pid=0}, {family=0xff /* AF_???
*/}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ sprintrc(rc));
+
+ /* short read of family */
+ memmove(nlh0, nlh, NLMSG_HDRLEN);
+ nlh = nlh0;
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*family), MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_REQUEST, seq=0, pid=0}, %p}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ NLMSG_DATA(nlh),
+ NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ sprintrc(rc));
+
+ /* print family and string */
+ nlh = nlh0 - (sizeof(*family) + 4);
+ *nlh = (struct nlmsghdr) {
+ .nlmsg_len = NLMSG_HDRLEN + sizeof(*family) + 4,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_REQUEST,
+ };
+ family = NLMSG_DATA(nlh);
+ *family = AF_NETLINK;
+ memcpy(family + 1, "1234", 4);
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*family) + 4, MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_REQUEST, seq=0, pid=0}"
+ ", {family=AF_NETLINK, \"1234\"}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*family) + 4,
+ NLMSG_HDRLEN + (unsigned int) sizeof(*family) + 4,
+ sprintrc(rc));
+
+ /* print netlink_diag_req */
+ nlh = nlh0 - sizeof(*req);
+ *nlh = (struct nlmsghdr) {
+ .nlmsg_len = NLMSG_HDRLEN + sizeof(*req),
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_REQUEST,
+ };
+ req = NLMSG_DATA(nlh);
+ *req = (struct netlink_diag_req) {
+ .sdiag_family = AF_NETLINK,
+ .sdiag_protocol = NDIAG_PROTO_ALL,
+ .ndiag_show = NDIAG_SHOW_MEMINFO,
+ };
+
+
+ rc = sendto(fd, nlh, nlh->nlmsg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_REQUEST, seq=0, pid=0}"
+ ", {sdiag_family=AF_NETLINK, sdiag_protocol=NDIAG_PROTO_ALL"
+ ", ndiag_ino=0, ndiag_show=NDIAG_SHOW_MEMINFO"
+ ", ndiag_cookie=[0, 0]}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, nlh->nlmsg_len, nlh->nlmsg_len, sprintrc(rc));
+
+ /* short read of netlink_diag_req */
+ nlh = nlh0 - sizeof(*family);
+ memmove(nlh, nlh0 - sizeof(*req), NLMSG_HDRLEN + sizeof(*family));
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*req), MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_REQUEST, seq=0, pid=0}, {family=AF_NETLINK, %p}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*req),
+ NLMSG_DATA(nlh) + 1,
+ NLMSG_HDRLEN + (unsigned int) sizeof(*req),
+ sprintrc(rc));
+}
+
+static void
+test_netlink_diag_msg(const int fd)
+{
+ struct nlmsghdr *nlh;
+ struct netlink_diag_msg *msg;
+ uint8_t *family;
+ void *const nlh0 = tail_alloc(NLMSG_HDRLEN);
+ long rc;
+
+ /* print family only */
+ nlh = nlh0 - sizeof(*family);
+ *nlh = (struct nlmsghdr) {
+ .nlmsg_len = NLMSG_HDRLEN + sizeof(*family),
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP,
+ };
+ family = NLMSG_DATA(nlh);
+ *family = AF_NETLINK;
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*family), MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_DUMP, seq=0, pid=0}, {family=AF_NETLINK}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ sprintrc(rc));
+
+ /* print unknown family */
+ *family = 0xff;
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*family), MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_DUMP, seq=0, pid=0}, {family=0xff /* AF_??? */}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ sprintrc(rc));
+
+ /* short read of family */
+ memmove(nlh0, nlh, NLMSG_HDRLEN);
+ nlh = nlh0;
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*family), MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_DUMP, seq=0, pid=0}, %p}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ NLMSG_DATA(nlh),
+ NLMSG_HDRLEN + (unsigned int) sizeof(*family),
+ sprintrc(rc));
+
+ /* print family and string */
+ nlh = nlh0 - (sizeof(*family) + 4);
+ *nlh = (struct nlmsghdr) {
+ .nlmsg_len = NLMSG_HDRLEN + sizeof(*family) + 4,
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP,
+ };
+ family = NLMSG_DATA(nlh);
+ *family = AF_NETLINK;
+ memcpy(family + 1, "1234", 4);
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*family) + 4, MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_DUMP, seq=0, pid=0}"
+ ", {family=AF_NETLINK, \"1234\"}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*family) + 4,
+ NLMSG_HDRLEN + (unsigned int) sizeof(*family) + 4,
+ sprintrc(rc));
+
+ /* print netlink_diag_msg */
+ nlh = nlh0 - sizeof(*msg);
+ *nlh = (struct nlmsghdr) {
+ .nlmsg_len = NLMSG_HDRLEN + sizeof(*msg),
+ .nlmsg_type = SOCK_DIAG_BY_FAMILY,
+ .nlmsg_flags = NLM_F_DUMP,
+ };
+ msg = NLMSG_DATA(nlh);
+ *msg = (struct netlink_diag_msg) {
+ .ndiag_family = AF_NETLINK,
+ .ndiag_type = SOCK_RAW,
+ .ndiag_protocol = NETLINK_ROUTE,
+ .ndiag_state = NETLINK_CONNECTED,
+ };
+
+ rc = sendto(fd, nlh, nlh->nlmsg_len, MSG_DONTWAIT, NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_DUMP, seq=0, pid=0}, {ndiag_family=AF_NETLINK"
+ ", ndiag_type=SOCK_RAW, ndiag_protocol=NETLINK_ROUTE"
+ ", ndiag_state=NETLINK_CONNECTED, ndiag_portid=0"
+ ", ndiag_dst_portid=0, ndiag_dst_group=0, ndiag_ino=0"
+ ", ndiag_cookie=[0, 0]}}, %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, nlh->nlmsg_len, nlh->nlmsg_len, sprintrc(rc));
+
+ /* short read of netlink_diag_msg */
+ nlh = nlh0 - sizeof(*family);
+ memmove(nlh, nlh0 - sizeof(*msg), NLMSG_HDRLEN + sizeof(*family));
+
+ rc = sendto(fd, nlh, NLMSG_HDRLEN + sizeof(*msg), MSG_DONTWAIT,
+ NULL, 0);
+
+ printf("sendto(%d, {{len=%u, type=SOCK_DIAG_BY_FAMILY"
+ ", flags=NLM_F_DUMP, seq=0, pid=0}, {family=AF_NETLINK, %p}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, NLMSG_HDRLEN + (unsigned int) sizeof(*msg),
+ NLMSG_DATA(nlh) + 1,
+ NLMSG_HDRLEN + (unsigned int) sizeof(*msg),
+ sprintrc(rc));
+}
+
int main(void)
{
skip_if_unavailable("/proc/self/fd/");
@@ -324,6 +564,8 @@ int main(void)
test_nlmsg_flags(fd);
test_unix_diag_req(fd);
test_unix_diag_msg(fd);
+ test_netlink_diag_req(fd);
+ test_netlink_diag_msg(fd);
printf("+++ exited with 0 +++\n");
--
2.7.4
------------------------------------------------------------------------------
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