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); 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 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 80 ATF_TP_ADD_TCS(tp) 81 { 82 83 ATF_TP_ADD_TC(tp, OOSIOCGIFBRDADDR); 84 return atf_no_error(); 85 } 86