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
22 struct 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
42 ATF_TC(OOSIOCGIFBRDADDR);
ATF_TC_HEAD(OOSIOCGIFBRDADDR,tc)43 ATF_TC_HEAD(OOSIOCGIFBRDADDR, tc)
44 {
45
46 atf_tc_set_md_var(tc, "descr", "Checks that OOSIOCGIFBRDADDR works "
47 "(PR kern/44054)");
48 }
49
ATF_TC_BODY(OOSIOCGIFBRDADDR,tc)50 ATF_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
ATF_TP_ADD_TCS(tp)80 ATF_TP_ADD_TCS(tp)
81 {
82
83 ATF_TP_ADD_TC(tp, OOSIOCGIFBRDADDR);
84 return atf_no_error();
85 }
86