* tests/netlink_sock_diag.c: Include <linux/if_ether.h>
and <linux/packet_diag.h>.
(test_packet_diag_req, test_packet_diag_msg): New functions.
(main): Use them.
Co-authored-by: Fabien Siron <fabien.si...@epita.fr>
---
tests/netlink_sock_diag.c | 240 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 240 insertions(+)
diff --git a/tests/netlink_sock_diag.c b/tests/netlink_sock_diag.c
index 87a6d00..17fd5f4 100644
--- a/tests/netlink_sock_diag.c
+++ b/tests/netlink_sock_diag.c
@@ -34,8 +34,10 @@
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/tcp.h>
+#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/netlink_diag.h>
+#include <linux/packet_diag.h>
#include <linux/sock_diag.h>
#include <linux/unix_diag.h>
@@ -554,6 +556,242 @@ test_netlink_diag_msg(const int fd)
sprintrc(rc));
}
+static void
+test_packet_diag_req(const int fd)
+{
+ struct nlmsghdr *nlh;
+ struct packet_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_PACKET;
+
+ 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_PACKET}}"
+ ", %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_PACKET;
+ 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_PACKET, \"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 packet_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 packet_diag_req) {
+ .sdiag_family = AF_PACKET,
+ .sdiag_protocol = ETH_P_LOOP,
+ .pdiag_show = PACKET_SHOW_INFO,
+ };
+
+ 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_PACKET, sdiag_protocol=ETH_P_LOOP"
+ ", pdiag_ino=0, pdiag_show=PACKET_SHOW_INFO"
+ ", pdiag_cookie=[0, 0]}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, nlh->nlmsg_len, nlh->nlmsg_len, sprintrc(rc));
+
+ /* short read of packet_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_PACKET, %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_packet_diag_msg(const int fd)
+{
+ struct nlmsghdr *nlh;
+ struct packet_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_PACKET;
+
+ 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_PACKET}}"
+ ", %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_PACKET;
+ 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_PACKET, \"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 packet_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 packet_diag_msg) {
+ .pdiag_family = AF_PACKET,
+ .pdiag_type = SOCK_STREAM,
+ };
+
+ 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}"
+ ", {pdiag_family=AF_PACKET, pdiag_type=SOCK_STREAM"
+ ", pdiag_num=0, pdiag_ino=0, pdiag_cookie=[0, 0]}}"
+ ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
+ fd, nlh->nlmsg_len, nlh->nlmsg_len, sprintrc(rc));
+
+ /* short read of packet_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_PACKET, %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/");
@@ -566,6 +804,8 @@ int main(void)
test_unix_diag_msg(fd);
test_netlink_diag_req(fd);
test_netlink_diag_msg(fd);
+ test_packet_diag_req(fd);
+ test_packet_diag_msg(fd);
printf("+++ exited with 0 +++\n");
--
2.7.4
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