test: add a static test for ICMP socket

Add a ZDTM static test for the ICMP socket feature.

Signed-off-by: समीर सिंह Sameer Singh <[email protected]>

test/zdtm/static/Makefile

@@ -35,6 +35,7 @@ TST_NOFILE	:=				\
 		socket_udp-corked		\
 		socket6_udp			\
 		socket_udp_shutdown		\
+		socket_icmp			\
 		sk-freebind			\
 		sk-freebind-false		\
 		socket_udplite			\

test/zdtm/static/socket_icmp.c

@@ -0,0 +1,109 @@
+#include "zdtmtst.h"
+
+const char *test_doc = "static test for ICMP socket\n";
+const char *test_author = "समीर सिंह Sameer Singh <[email protected]>\n";
+
+/* Description:
+ * Send a ping to localhost using ICMP socket
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip_icmp.h>
+#include <arpa/inet.h>
+#include <sys/time.h>
+#include <netdb.h>
+
+#define PACKET_SIZE 64
+#define RECV_TIMEOUT 1
+
+int ping(void)
+{
+	int ret, sock, seq = 0, recv_len = 0;
+	char packet[PACKET_SIZE], recv_packet[PACKET_SIZE];
+
+	struct timeval tv;
+	struct icmphdr icmp_header, *icmp_reply;
+	struct sockaddr_in addr, recv_addr;
+	socklen_t addr_len;
+
+	sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_ICMP);
+	if (sock < 0) {
+		pr_perror("Can't create socket");
+		return 1;
+	}
+
+
+	tv.tv_sec = RECV_TIMEOUT;
+	tv.tv_usec = 0;
+	if (setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) {
+		pr_perror("Can't set socket option");
+		return 1;
+	}
+
+	memset(&addr, 0, sizeof(addr));
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+	for (;;) {
+		memset(&icmp_header, 0, sizeof(icmp_header));
+		icmp_header.type = ICMP_ECHO;
+		icmp_header.code = 0;
+		icmp_header.un.echo.id = getpid();
+		icmp_header.un.echo.sequence = seq++;
+
+		memcpy(packet, &icmp_header, sizeof(icmp_header));
+		memset(packet + sizeof(icmp_header), 0xa5,
+			PACKET_SIZE - sizeof(icmp_header));
+
+		ret = sendto(sock, packet, PACKET_SIZE, 0,
+			(struct sockaddr *)&addr, sizeof(addr));
+
+		if (ret < 0) {
+			fail("Can't send");
+			return 1;
+		}
+
+		addr_len = sizeof(recv_addr);
+
+		ret = recvfrom(sock, recv_packet, sizeof(recv_packet), 0,
+			(struct sockaddr*)&recv_addr, &addr_len);
+
+		if (ret < 0) {
+			fail("Can't recv");
+			return 1;
+		}
+
+		icmp_reply = (struct icmphdr *)recv_packet;
+
+		if (icmp_reply->type == ICMP_ECHOREPLY) {
+			printf("%d bytes from %s: icmp_seq=%d\n",
+				recv_len,
+				inet_ntoa(recv_addr.sin_addr),
+				icmp_reply->un.echo.sequence);
+		}
+
+		sleep(1);
+	}
+
+	close(sock);
+}
+
+int main(int argc, char **argv)
+{
+	int ret;
+	test_init(argc, argv);
+
+	test_daemon();
+	test_waitsig();
+
+	ret = ping();
+	if (ret == 1)
+		fail("Cannot ping");
+
+	pass();
+	return 0;
+}