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zdtm: Check tap's hwaddr doesn't change after c/r

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Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov
2013-08-24 01:08:03 +04:00
parent 022cfc30ae
commit 5d66f72c92
1 changed files with 28 additions and 0 deletions
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28
test/zdtm/live/static/tun.c
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@@ -99,9 +99,23 @@ static void check_tun(int fd, char *name, unsigned flags)
}
}
static int dev_get_hwaddr(int fd, char *a)
{
struct ifreq ifr;
if (ioctl(fd, SIOCGIFHWADDR, &ifr) < 0) {
err("Can't get hwaddr");
return -1;
}
memcpy(a, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
return 0;
}
int main(int argc, char **argv)
{
int fds[5], ret;
char addr[ETH_ALEN], a2[ETH_ALEN];
test_init(argc, argv);
@@ -155,6 +169,11 @@ int main(int argc, char **argv)
return -1;
}
if (dev_get_hwaddr(fds[4], addr) < 0) {
err("No hwaddr for tap?");
return -1;
}
close(ret);
test_daemon();
@@ -200,6 +219,15 @@ int main(int argc, char **argv)
}
check_tun(fds[4], "tapx0", IFF_TAP);
if (dev_get_hwaddr(fds[4], a2) < 0) {
err("No hwaddr for tap? (2)");
any_fail = 1;
} else if (memcmp(addr, a2, sizeof(addr))) {
fail("Address mismatch on tap %x:%x -> %x:%x",
(int)addr[0], (int)addr[1],
(int)a2[0], (int)a2[1]);
any_fail = 1;
}
if (!any_fail)
pass();