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In addition to testing the fd passing doesn't crash the kernel, 

also check that it actually works.
This commit is contained in:
pooka 2009-05-03 23:19:59 +00:00
parent 414eb0a314
commit 0a3318e028
1 changed files with 63 additions and 4 deletions
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67
tests/syscall/t_cmsg.c
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@ -1,4 +1,4 @@
/* $NetBSD: t_cmsg.c,v 1.1 2009/02/10 13:43:54 pooka Exp $ */
/* $NetBSD: t_cmsg.c,v 1.2 2009/05/03 23:19:59 pooka Exp $ */
#include <sys/types.h>
#include <sys/socket.h>
@ -15,14 +15,16 @@
#include <unistd.h>
#include <util.h>
ATF_TC(cmsg_sendfd);
ATF_TC_HEAD(cmsg_sendfd, tc)
#include "../h_macros.h"
ATF_TC(cmsg_sendfd_bounds);
ATF_TC_HEAD(cmsg_sendfd_bounds, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks that attempting to pass an "
"invalid fd returns an error");
}
ATF_TC_BODY(cmsg_sendfd, tc)
ATF_TC_BODY(cmsg_sendfd_bounds, tc)
{
struct cmsghdr *cmp;
struct msghdr msg;
@ -66,7 +68,64 @@ ATF_TC_BODY(cmsg_sendfd, tc)
"got %d\n(%s)", errno, strerror(errno));
}
ATF_TC(cmsg_sendfd);
ATF_TC_HEAD(cmsg_sendfd, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks that fd passing works");
atf_tc_set_md_var(tc, "timeout", "2");
}
ATF_TC_BODY(cmsg_sendfd, tc)
{
struct cmsghdr *cmp;
struct msghdr msg;
struct iovec iov;
ssize_t n;
int s[2], sgot;
int rv, error = 0;
int v1, v2;
rump_init();
if (rump_sys_socketpair(AF_LOCAL, SOCK_STREAM, 0, s) == -1)
atf_tc_fail("rump_sys_socketpair");
rv = 0;
cmp = malloc(CMSG_LEN(sizeof(int)));
iov.iov_base = &error;
iov.iov_len = sizeof(int);
cmp->cmsg_level = SOL_SOCKET;
cmp->cmsg_type = SCM_RIGHTS;
cmp->cmsg_len = CMSG_LEN(sizeof(int));
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_name = NULL;
msg.msg_namelen = 0;
msg.msg_control = cmp;
msg.msg_controllen = CMSG_LEN(sizeof(int));
*(int *)CMSG_DATA(cmp) = s[1];
if (rump_sys_sendmsg(s[0], &msg, 0) == -1)
atf_tc_fail_errno("sendmsg failed");
if (rump_sys_recvmsg(s[1], &msg, 0) == -1)
atf_tc_fail_errno("recvmsg failed");
sgot = *(int *)CMSG_DATA(cmp);
/* test that we really got the fd by writing something thought it */
v1 = 37;
v2 = -1;
rump_sys_write(s[0], &v1, sizeof(v1));
rump_sys_read(sgot, &v2, sizeof(v1));
if (v1 != v2)
atf_tc_fail("value mismatch: %d vs. %d", v1, v2);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, cmsg_sendfd);
ATF_TP_ADD_TC(tp, cmsg_sendfd_bounds);
}