84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/* $NetBSD: t_compat.c,v 1.1 2010/11/07 19:53:42 pooka Exp $ */
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <rump/rump.h>
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#include <rump/rump_syscalls.h>
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#include "../config/netconfig.c"
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/*
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* Test for stack smashing in compat ioctl handling. Adapted as an
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* atf test from code provided by Onno van der Linden in PR kern/44054
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*/
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struct oifreq {
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char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
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union {
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struct sockaddr ifru_addr;
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struct sockaddr ifru_dstaddr;
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struct sockaddr ifru_broadaddr;
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short ifru_flags;
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int ifru_metric;
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int ifru_mtu;
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int ifru_dlt;
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u_int ifru_value;
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void * ifru_data;
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struct {
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uint32_t b_buflen;
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void *b_buf;
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} ifru_b;
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} ifr_ifru;
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};
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#define OOSIOCGIFBRDADDR _IOWR('i', 18, struct oifreq)
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ATF_TC(OOSIOCGIFBRDADDR);
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ATF_TC_HEAD(OOSIOCGIFBRDADDR, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Checks that OOSIOCGIFBRDADDR works "
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"(PR kern/44054)");
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}
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ATF_TC_BODY(OOSIOCGIFBRDADDR, tc)
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{
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int fd, ifnum;
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struct oifreq ifreq;
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struct sockaddr_in *sin;
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int rv;
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memset(&ifreq,'\0',sizeof ifreq);
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rump_init();
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/* create an interface and give it netmask 0xffff0000 */
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rv = rump_pub_shmif_create("bus", &ifnum);
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if (rv)
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atf_tc_fail("failed to create shmif: %s", strerror(rv));
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sprintf(ifreq.ifr_name, "shmif%d", ifnum);
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netcfg_rump_if(ifreq.ifr_name, "1.7.64.10", "255.255.0.0");
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/* query kernel for iface bcast */
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RL(fd = rump_sys_socket(AF_INET, SOCK_DGRAM, 0));
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RL(rump_sys_ioctl(fd, OOSIOCGIFBRDADDR, &ifreq));
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/* make sure we got what we deserve */
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sin = (struct sockaddr_in *)&ifreq.ifr_broadaddr;
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ATF_REQUIRE_EQ(sin->sin_addr.s_addr, htonl(0x0107ffff));
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rump_sys_close(fd);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, OOSIOCGIFBRDADDR);
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return atf_no_error();
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}
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