1 /* $NetBSD: netconfig.c,v 1.9 2017/01/13 21:30:42 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND 17 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 23 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 #ifndef lint 32 __RCSID("$NetBSD: netconfig.c,v 1.9 2017/01/13 21:30:42 christos Exp $"); 33 #endif /* not lint */ 34 35 #include <sys/types.h> 36 #include <sys/socket.h> 37 #include <sys/ioctl.h> 38 39 #include <arpa/inet.h> 40 41 #include <net/route.h> 42 43 #include <netinet/in.h> 44 #include <netinet/in_systm.h> 45 #include <netinet/ip.h> 46 #include <netinet/ip_icmp.h> 47 48 #include <atf-c.h> 49 #include <err.h> 50 #include <errno.h> 51 #include <string.h> 52 53 #include <rump/rump.h> 54 #include <rump/rump_syscalls.h> 55 56 #include "h_macros.h" 57 58 int noatf; 59 60 static void __unused netcfg_rump_makeshmif(const char * busname,char * ifname)61 netcfg_rump_makeshmif(const char *busname, char *ifname) 62 { 63 int rv, ifnum; 64 65 if ((rv = rump_pub_shmif_create(busname, &ifnum)) != 0) { 66 if (noatf) 67 err(1, "makeshmif: rump_pub_shmif_create %d", rv); 68 else 69 atf_tc_fail("makeshmif: rump_pub_shmif_create %d", rv); 70 } 71 sprintf(ifname, "shmif%d", ifnum); 72 } 73 74 static void __unused netcfg_rump_if(const char * ifname,const char * addr,const char * mask)75 netcfg_rump_if(const char *ifname, const char *addr, const char *mask) 76 { 77 struct ifaliasreq ia; 78 struct sockaddr_in *sin; 79 in_addr_t inaddr, inmask; 80 int s, rv; 81 82 s = -1; 83 if ((s = rump_sys_socket(PF_INET, SOCK_DGRAM, 0)) < 0) { 84 if (noatf) 85 err(1, "if config socket"); 86 else 87 atf_tc_fail_errno("if config socket"); 88 } 89 90 inaddr = inet_addr(addr); 91 inmask = inet_addr(mask); 92 93 /* Address */ 94 memset(&ia, 0, sizeof(ia)); 95 strcpy(ia.ifra_name, ifname); 96 sin = (struct sockaddr_in *)&ia.ifra_addr; 97 sin->sin_family = AF_INET; 98 sin->sin_len = sizeof(struct sockaddr_in); 99 sin->sin_addr.s_addr = inaddr; 100 101 /* Netmask */ 102 sin = (struct sockaddr_in *)&ia.ifra_mask; 103 sin->sin_family = AF_INET; 104 sin->sin_len = sizeof(struct sockaddr_in); 105 sin->sin_addr.s_addr = inmask; 106 107 /* Broadcast address */ 108 sin = (struct sockaddr_in *)&ia.ifra_broadaddr; 109 sin->sin_family = AF_INET; 110 sin->sin_len = sizeof(struct sockaddr_in); 111 sin->sin_addr.s_addr = inaddr | ~inmask; 112 113 rv = rump_sys_ioctl(s, SIOCAIFADDR, &ia); 114 if (rv == -1) { 115 if (noatf) 116 err(1, "SIOCAIFADDR"); 117 else 118 atf_tc_fail_errno("SIOCAIFADDR"); 119 } 120 rump_sys_close(s); 121 } 122 123 static void __unused netcfg_rump_route(const char * dst,const char * mask,const char * gw)124 netcfg_rump_route(const char *dst, const char *mask, const char *gw) 125 { 126 size_t len; 127 struct { 128 struct rt_msghdr m_rtm; 129 uint8_t m_space[512]; 130 } m_rtmsg; 131 #define rtm m_rtmsg.m_rtm 132 uint8_t *bp = m_rtmsg.m_space; 133 struct sockaddr_in sinstore; 134 int s, rv; 135 136 s = rump_sys_socket(PF_ROUTE, SOCK_RAW, 0); 137 if (s == -1) { 138 if (noatf) 139 err(1, "routing socket"); 140 else 141 atf_tc_fail_errno("routing socket"); 142 } 143 144 memset(&m_rtmsg, 0, sizeof(m_rtmsg)); 145 rtm.rtm_type = RTM_ADD; 146 rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC; 147 rtm.rtm_version = RTM_VERSION; 148 rtm.rtm_seq = 2; 149 rtm.rtm_addrs = RTA_DST | RTA_GATEWAY | RTA_NETMASK; 150 151 /* dst */ 152 memset(&sinstore, 0, sizeof(sinstore)); 153 sinstore.sin_family = AF_INET; 154 sinstore.sin_len = sizeof(sinstore); 155 sinstore.sin_addr.s_addr = inet_addr(dst); 156 memcpy(bp, &sinstore, sizeof(sinstore)); 157 bp += sizeof(sinstore); 158 159 /* gw */ 160 memset(&sinstore, 0, sizeof(sinstore)); 161 sinstore.sin_family = AF_INET; 162 sinstore.sin_len = sizeof(sinstore); 163 sinstore.sin_addr.s_addr = inet_addr(gw); 164 memcpy(bp, &sinstore, sizeof(sinstore)); 165 bp += sizeof(sinstore); 166 167 /* netmask */ 168 memset(&sinstore, 0, sizeof(sinstore)); 169 sinstore.sin_family = AF_INET; 170 sinstore.sin_len = sizeof(sinstore); 171 sinstore.sin_addr.s_addr = inet_addr(mask); 172 memcpy(bp, &sinstore, sizeof(sinstore)); 173 bp += sizeof(sinstore); 174 175 len = bp - (uint8_t *)&m_rtmsg; 176 rtm.rtm_msglen = len; 177 178 rv = rump_sys_write(s, &m_rtmsg, len); 179 if (rv != (int)len) { 180 if (noatf) 181 err(1, "write routing message"); 182 else 183 atf_tc_fail_errno("write routing message"); 184 } 185 rump_sys_close(s); 186 } 187 188 static bool __unused netcfg_rump_pingtest(const char * dst,int ms_timo)189 netcfg_rump_pingtest(const char *dst, int ms_timo) 190 { 191 struct timeval tv; 192 struct sockaddr_in sin; 193 struct icmp icmp; 194 socklen_t slen; 195 int s; 196 bool rv = false; 197 198 s = rump_sys_socket(PF_INET, SOCK_RAW, IPPROTO_ICMP); 199 if (s == -1) 200 return false; 201 tv.tv_sec = ms_timo / 1000; 202 tv.tv_usec = 1000 * (ms_timo % 1000); 203 if (rump_sys_setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, 204 &tv, sizeof(tv)) == -1) 205 goto out; 206 207 memset(&sin, 0, sizeof(sin)); 208 sin.sin_len = sizeof(sin); 209 sin.sin_family = AF_INET; 210 sin.sin_addr.s_addr = inet_addr(dst); 211 212 memset(&icmp, 0, sizeof(icmp)); 213 icmp.icmp_type = ICMP_ECHO; 214 icmp.icmp_id = htons(37); 215 icmp.icmp_cksum = htons(0xf7da); /* precalc */ 216 217 slen = sizeof(sin); 218 if (rump_sys_sendto(s, &icmp, sizeof(icmp), 0, 219 (struct sockaddr *)&sin, slen) == -1) { 220 goto out; 221 } 222 223 if (rump_sys_recvfrom(s, &icmp, sizeof(icmp), 0, 224 (struct sockaddr *)&sin, &slen) == -1) 225 goto out; 226 227 rv = true; 228 out: 229 rump_sys_close(s); 230 return rv; 231 } 232