1/*	$NetBSD: t_compat.c,v 1.4 2016/11/12 15:12:59 kre Exp $	*/
2
3#include <sys/socket.h>
4#include <sys/ioctl.h>
5#include <net/if.h>
6#include <netinet/in.h>
7
8#include <string.h>
9#include <stdio.h>
10#include <stdlib.h>
11
12#include <rump/rump.h>
13#include <rump/rump_syscalls.h>
14
15#include "../config/netconfig.c"
16
17/*
18 * Test for stack smashing in compat ioctl handling.  Adapted as an
19 * atf test from code provided by Onno van der Linden in PR kern/44054
20 */
21
22struct oifreq {
23        char    ifr_name[IFNAMSIZ];             /* if name, e.g. "en0" */
24        union {
25                struct  sockaddr ifru_addr;
26                struct  sockaddr ifru_dstaddr;
27                struct  sockaddr ifru_broadaddr;
28                short   ifru_flags;
29                int     ifru_metric;
30                int     ifru_mtu;
31                int     ifru_dlt;
32                u_int   ifru_value;
33                void *  ifru_data;
34                struct {
35                        uint32_t        b_buflen;
36                        void            *b_buf;
37                } ifru_b;
38        } ifr_ifru;
39};
40#define OOSIOCGIFBRDADDR _IOWR('i', 18, struct oifreq)
41
42ATF_TC(OOSIOCGIFBRDADDR);
43ATF_TC_HEAD(OOSIOCGIFBRDADDR, tc)
44{
45
46	atf_tc_set_md_var(tc, "descr", "Checks that OOSIOCGIFBRDADDR works "
47	    "(PR kern/44054)");
48}
49
50ATF_TC_BODY(OOSIOCGIFBRDADDR, tc)
51{
52        int fd, ifnum;
53        struct oifreq ifreq;
54        struct sockaddr_in *sin;
55	int rv;
56
57        memset(&ifreq,'\0',sizeof ifreq);
58
59	rump_init();
60
61	/* create an interface and give it netmask 0xffff0000 */
62	rv = rump_pub_shmif_create("bus", &ifnum);
63	if (rv)
64		atf_tc_fail("failed to create shmif: %s", strerror(rv));
65	sprintf(ifreq.ifr_name, "shmif%d", ifnum);
66	netcfg_rump_if(ifreq.ifr_name, "1.7.64.10", "255.255.0.0");
67
68	atf_tc_expect_fail("PR kern/51610: rump does not include COMPAT_43");
69
70	/* query kernel for iface bcast */
71        RL(fd = rump_sys_socket(AF_INET, SOCK_DGRAM, 0));
72        RL(rump_sys_ioctl(fd, OOSIOCGIFBRDADDR, &ifreq));
73
74	/* make sure we got what we deserve */
75        sin = (struct sockaddr_in *)&ifreq.ifr_broadaddr;
76	ATF_REQUIRE_EQ(sin->sin_addr.s_addr, htonl(0x0107ffff));
77        rump_sys_close(fd);
78}
79
80ATF_TP_ADD_TCS(tp)
81{
82
83	ATF_TP_ADD_TC(tp, OOSIOCGIFBRDADDR);
84	return atf_no_error();
85}
86