Add a two-way floodping test and a test which sends icmp echos with
various sizes.
This commit is contained in:
pooka
parent
dd6aeafa08
commit
9a3c295ef2
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@ -1,4 +1,4 @@
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/* $NetBSD: t_ping.c,v 1.2 2010/08/17 15:51:11 pooka Exp $ */
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/* $NetBSD: t_ping.c,v 1.3 2010/08/18 16:39:22 pooka Exp $ */
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/*-
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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@ -29,7 +29,7 @@
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: t_ping.c,v 1.2 2010/08/17 15:51:11 pooka Exp $");
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__RCSID("$NetBSD: t_ping.c,v 1.3 2010/08/18 16:39:22 pooka Exp $");
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#endif /* not lint */
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#include <sys/types.h>
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@ -101,20 +101,92 @@ ATF_TC_HEAD(floodping, tc)
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atf_tc_set_md_var(tc, "use.fs", "true");
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}
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#define PERLOOP 100
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#define LOOPS 100
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ATF_TC_BODY(floodping, tc)
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/* why the hell isn't this available in userspace??? */
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static uint16_t
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in_cksum(void *data, size_t len)
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{
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char buf[8192];
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char ifname[IFNAMSIZ];
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pid_t cpid;
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int loop, i, succ;
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uint16_t *buf = data;
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unsigned sum;
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for (sum = 0; len > 1; len -= 2)
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sum += *buf++;
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if (len)
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sum += *(uint8_t *)buf;
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sum = (sum >> 16) + (sum & 0xffff);
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sum += (sum >> 16);
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return ~sum;
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}
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static int
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doping(const char *target, int loops, size_t pktsize)
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{
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char sndbuf[IP_MAXPACKET - sizeof(struct ip)];
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char recvbuf[IP_MAXPACKET];
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struct sockaddr_in dst, pingee;
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struct icmp icmp;
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struct icmp *icmp;
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socklen_t slen;
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ssize_t n;
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int loop, i, succ;
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int x, xnon, s;
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RL(s = rump_sys_socket(PF_INET, SOCK_RAW, IPPROTO_ICMP));
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RL(x = rump_sys_fcntl(s, F_GETFL, 0));
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xnon = x | O_NONBLOCK;
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memset(&dst, 0, sizeof(dst));
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dst.sin_len = sizeof(dst);
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dst.sin_family = AF_INET;
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dst.sin_addr.s_addr = inet_addr(target);
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icmp = (struct icmp *)sndbuf;
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memset(icmp, 0, sizeof(*icmp));
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icmp->icmp_type = ICMP_ECHO;
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icmp->icmp_id = htons(37);
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if (pktsize < sizeof(*icmp))
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pktsize = sizeof(*icmp);
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if (pktsize > sizeof(sndbuf))
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pktsize = sizeof(sndbuf);
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RL(rump_sys_setsockopt(s, SOL_SOCKET, SO_SNDBUF,
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&pktsize, sizeof(pktsize)));
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RL(rump_sys_setsockopt(s, SOL_SOCKET, SO_RCVBUF,
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&pktsize, sizeof(pktsize)));
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slen = sizeof(pingee);
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succ = 0;
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for (loop = 0; loop < loops; loop++) {
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RL(rump_sys_fcntl(s, F_SETFL, x));
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icmp->icmp_seq = htons(loop);
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icmp->icmp_cksum = 0;
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icmp->icmp_cksum = in_cksum(icmp, pktsize);
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RL(rump_sys_sendto(s, icmp, pktsize, 0,
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(struct sockaddr *)&dst, sizeof(dst)));
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RL(rump_sys_fcntl(s, F_SETFL, xnon));
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while ((n = rump_sys_recvfrom(s, recvbuf, sizeof(recvbuf), 0,
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(struct sockaddr *)&pingee, &slen)) > 0) {
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succ++;
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}
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if (n == -1 && errno == EAGAIN)
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continue;
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atf_tc_fail_errno("recv failed");
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}
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rump_sys_close(s);
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return succ;
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}
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#define LOOPS 10000
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ATF_TC_BODY(floodping, tc)
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{
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char ifname[IFNAMSIZ];
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pid_t cpid;
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int succ;
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cpid = fork();
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rump_init();
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netcfg_rump_makeshmif("thank-you-driver-for-getting-me-here", ifname);
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@ -132,40 +204,92 @@ ATF_TC_BODY(floodping, tc)
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netcfg_rump_if(ifname, "1.1.1.20", "255.255.255.0");
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RL(s = rump_sys_socket(PF_INET, SOCK_RAW, IPPROTO_ICMP));
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RL(x = rump_sys_fcntl(s, F_GETFL, 0));
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xnon = x | O_NONBLOCK;
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succ = doping("1.1.1.10", LOOPS, 56);
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printf("got %d/%d\n", succ, LOOPS);
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memset(&dst, 0, sizeof(dst));
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dst.sin_len = sizeof(dst);
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dst.sin_family = AF_INET;
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dst.sin_addr.s_addr = inet_addr("1.1.1.10");
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kill(cpid, SIGKILL);
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}
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memset(&icmp, 0, sizeof(icmp));
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icmp.icmp_type = ICMP_ECHO;
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icmp.icmp_id = htons(37);
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icmp.icmp_cksum = htons(0xf7da);
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ATF_TC(floodping2);
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ATF_TC_HEAD(floodping2, tc)
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{
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slen = sizeof(pingee);
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succ = 0;
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for (loop = 0; loop < LOOPS; loop++) {
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RL(rump_sys_fcntl(s, F_SETFL, x));
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for (i = 0; i < PERLOOP; i++) {
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RL(rump_sys_sendto(s, &icmp, sizeof(icmp), 0,
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(struct sockaddr *)&dst, sizeof(dst)));
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}
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RL(rump_sys_fcntl(s, F_SETFL, xnon));
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while ((n = rump_sys_recvfrom(s, buf, sizeof(buf), 0,
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(struct sockaddr *)&pingee, &slen)) > 0) {
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succ++;
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}
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if (n == -1 && errno == EAGAIN)
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continue;
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atf_tc_fail_errno("recv failed");
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atf_tc_set_md_var(tc, "descr", "two hosts floodpinging each other");
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atf_tc_set_md_var(tc, "use.fs", "true");
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}
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ATF_TC_BODY(floodping2, tc)
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{
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char ifname[IFNAMSIZ];
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pid_t cpid;
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int succ;
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cpid = fork();
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rump_init();
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netcfg_rump_makeshmif("floodping2", ifname);
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switch (cpid) {
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case -1:
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atf_tc_fail_errno("fork failed");
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case 0:
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netcfg_rump_if(ifname, "1.1.1.10", "255.255.255.0");
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succ = doping("1.1.1.20", LOOPS, 56);
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break;
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default:
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netcfg_rump_if(ifname, "1.1.1.20", "255.255.255.0");
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succ = doping("1.1.1.10", LOOPS, 56);
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break;
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}
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printf("got %d/%d\n", succ, LOOPS * PERLOOP);
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printf("got %d/%d\n", succ, LOOPS);
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}
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ATF_TC(pingsize);
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ATF_TC_HEAD(pingsize, tc)
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{
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atf_tc_set_md_var(tc, "descr", "ping with packets min <= size <= max");
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atf_tc_set_md_var(tc, "use.fs", "true");
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}
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ATF_TC_BODY(pingsize, tc)
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{
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char ifname[IFNAMSIZ];
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pid_t cpid;
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int succ, i;
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cpid = fork();
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rump_init();
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netcfg_rump_makeshmif("jippikaiee", ifname);
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switch (cpid) {
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case -1:
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atf_tc_fail_errno("fork failed");
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case 0:
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netcfg_rump_if(ifname, "1.1.1.10", "255.255.255.0");
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pause();
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break;
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default:
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break;
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}
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netcfg_rump_if(ifname, "1.1.1.20", "255.255.255.0");
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succ = 0;
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/* small sizes */
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for (i = IP_MAXPACKET - 60000; i > 0; i--)
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succ += doping("1.1.1.10", 1, i);
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/* medium sizes */
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for (i = IP_MAXPACKET - 100; i > IP_MAXPACKET - 60000; i -= 1000)
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succ += doping("1.1.1.10", 1, i);
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/* big sizes */
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for (i = IP_MAXPACKET; i > IP_MAXPACKET - 100; i -= 10)
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succ += doping("1.1.1.10", 1, i);
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printf("got %d/%d\n", succ, IP_MAXPACKET);
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kill(cpid, SIGKILL);
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}
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@ -174,6 +298,8 @@ ATF_TP_ADD_TCS(tp)
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ATF_TP_ADD_TC(tp, simpleping);
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ATF_TP_ADD_TC(tp, floodping);
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ATF_TP_ADD_TC(tp, floodping2);
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ATF_TP_ADD_TC(tp, pingsize);
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return atf_no_error();
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}
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