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hwsim_test: Allow TOS/DSCP field to be set from command line

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This makes it easier to test how Data frames are mapped to different
ACs.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2013-12-24 14:31:52 +02:00
parent 991e31cd66
commit 24dbd2813c
1 changed files with 50 additions and 13 deletions
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63
mac80211_hwsim/tools/hwsim_test.c
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@ -44,7 +44,8 @@ static u_int16_t checksum(const void *buf, size_t len)
static void tx(int s, const char *ifname, int ifindex, static void tx(int s, const char *ifname, int ifindex,
const unsigned char *src, const unsigned char *dst) const unsigned char *src, const unsigned char *dst,
u_int8_t tos)
{ {
char buf[HWSIM_PACKETLEN], *pos; char buf[HWSIM_PACKETLEN], *pos;
struct ether_header *eth; struct ether_header *eth;
@ -63,7 +64,7 @@ static void tx(int s, const char *ifname, int ifindex,
ip->ihl = 5; ip->ihl = 5;
ip->version = 4; ip->version = 4;
ip->ttl = 64; ip->ttl = 64;
ip->tos = 0; ip->tos = tos;
ip->tot_len = htons(HWSIM_PACKETLEN - sizeof(*eth)); ip->tot_len = htons(HWSIM_PACKETLEN - sizeof(*eth));
ip->protocol = 1; ip->protocol = 1;
ip->saddr = htonl(192 << 24 | 168 << 16 | 1 << 8 | 1); ip->saddr = htonl(192 << 24 | 168 << 16 | 1 << 8 | 1);
@ -141,21 +142,57 @@ static void rx(int s, int iface, const char *ifname, int ifindex,
} }
static void usage(void)
{
fprintf(stderr, "usage: hwsim_test [-D<DSCP>] [-t<tos>] <ifname1> <ifname2>\n");
}
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
int s1 = -1, s2 = -1, ret = -1; int s1 = -1, s2 = -1, ret = -1, c;
struct ifreq ifr; struct ifreq ifr;
int ifindex1, ifindex2; int ifindex1, ifindex2;
struct sockaddr_ll ll; struct sockaddr_ll ll;
fd_set rfds; fd_set rfds;
struct timeval tv; struct timeval tv;
struct rx_result res; struct rx_result res;
char *s_ifname, *d_ifname, *end;
int tos = 0;
if (argc != 3) { for (;;) {
fprintf(stderr, "usage: hwsim_test <ifname1> <ifname2>\n"); c = getopt(argc, argv, "D:t:");
if (c < 0)
break;
switch (c) {
case 'D':
tos = strtol(optarg, &end, 0) << 2;
if (*end) {
usage();
return -1;
}
break;
case 't':
tos = strtol(optarg, &end, 0);
if (*end) {
usage();
return -1;
}
break;
default:
usage();
return -1;
}
}
if (optind != argc - 2) {
usage();
return -1; return -1;
} }
s_ifname = argv[optind];
d_ifname = argv[optind + 1];
memset(bcast, 0xff, ETH_ALEN); memset(bcast, 0xff, ETH_ALEN);
s1 = socket(PF_PACKET, SOCK_RAW, htons(HWSIM_ETHERTYPE)); s1 = socket(PF_PACKET, SOCK_RAW, htons(HWSIM_ETHERTYPE));
@ -171,7 +208,7 @@ int main(int argc, char *argv[])
} }
memset(&ifr, 0, sizeof(ifr)); memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, argv[1], sizeof(ifr.ifr_name)); strncpy(ifr.ifr_name, s_ifname, sizeof(ifr.ifr_name));
if (ioctl(s1, SIOCGIFINDEX, &ifr) < 0) { if (ioctl(s1, SIOCGIFINDEX, &ifr) < 0) {
perror("ioctl[SIOCGIFINDEX]"); perror("ioctl[SIOCGIFINDEX]");
goto fail; goto fail;
@ -184,7 +221,7 @@ int main(int argc, char *argv[])
memcpy(addr1, ifr.ifr_hwaddr.sa_data, ETH_ALEN); memcpy(addr1, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
memset(&ifr, 0, sizeof(ifr)); memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, argv[2], sizeof(ifr.ifr_name)); strncpy(ifr.ifr_name, d_ifname, sizeof(ifr.ifr_name));
if (ioctl(s2, SIOCGIFINDEX, &ifr) < 0) { if (ioctl(s2, SIOCGIFINDEX, &ifr) < 0) {
perror("ioctl[SIOCGIFINDEX]"); perror("ioctl[SIOCGIFINDEX]");
goto fail; goto fail;
@ -214,10 +251,10 @@ int main(int argc, char *argv[])
goto fail; goto fail;
} }
tx(s1, argv[1], ifindex1, addr1, addr2); tx(s1, s_ifname, ifindex1, addr1, addr2, tos);
tx(s1, argv[1], ifindex1, addr1, bcast); tx(s1, s_ifname, ifindex1, addr1, bcast, tos);
tx(s2, argv[2], ifindex2, addr2, addr1); tx(s2, d_ifname, ifindex2, addr2, addr1, tos);
tx(s2, argv[2], ifindex2, addr2, bcast); tx(s2, d_ifname, ifindex2, addr2, bcast, tos);
tv.tv_sec = 1; tv.tv_sec = 1;
tv.tv_usec = 0; tv.tv_usec = 0;
@ -239,9 +276,9 @@ int main(int argc, char *argv[])
break; /* timeout */ break; /* timeout */
if (FD_ISSET(s1, &rfds)) if (FD_ISSET(s1, &rfds))
rx(s1, 1, argv[1], ifindex1, &res); rx(s1, 1, s_ifname, ifindex1, &res);
if (FD_ISSET(s2, &rfds)) if (FD_ISSET(s2, &rfds))
rx(s2, 2, argv[2], ifindex2, &res); rx(s2, 2, d_ifname, ifindex2, &res);
if (res.rx_unicast1 && res.rx_broadcast1 && if (res.rx_unicast1 && res.rx_broadcast1 &&
res.rx_unicast2 && res.rx_broadcast2) { res.rx_unicast2 && res.rx_broadcast2) {