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netconfig.c
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Editing: netconfig.c
/* $NetBSD: netconfig.c,v 1.9 2017/01/13 21:30:42 christos Exp $ */ /*- * Copyright (c) 2010 The NetBSD Foundation, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> #ifndef lint __RCSID("$NetBSD: netconfig.c,v 1.9 2017/01/13 21:30:42 christos Exp $"); #endif /* not lint */ #include <sys/types.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <arpa/inet.h> #include <net/route.h> #include <netinet/in.h> #include <netinet/in_systm.h> #include <netinet/ip.h> #include <netinet/ip_icmp.h> #include <atf-c.h> #include <err.h> #include <errno.h> #include <string.h> #include <rump/rump.h> #include <rump/rump_syscalls.h> #include "h_macros.h" int noatf; static void __unused netcfg_rump_makeshmif(const char *busname, char *ifname) { int rv, ifnum; if ((rv = rump_pub_shmif_create(busname, &ifnum)) != 0) { if (noatf) err(1, "makeshmif: rump_pub_shmif_create %d", rv); else atf_tc_fail("makeshmif: rump_pub_shmif_create %d", rv); } sprintf(ifname, "shmif%d", ifnum); } static void __unused netcfg_rump_if(const char *ifname, const char *addr, const char *mask) { struct ifaliasreq ia; struct sockaddr_in *sin; in_addr_t inaddr, inmask; int s, rv; s = -1; if ((s = rump_sys_socket(PF_INET, SOCK_DGRAM, 0)) < 0) { if (noatf) err(1, "if config socket"); else atf_tc_fail_errno("if config socket"); } inaddr = inet_addr(addr); inmask = inet_addr(mask); /* Address */ memset(&ia, 0, sizeof(ia)); strcpy(ia.ifra_name, ifname); sin = (struct sockaddr_in *)&ia.ifra_addr; sin->sin_family = AF_INET; sin->sin_len = sizeof(struct sockaddr_in); sin->sin_addr.s_addr = inaddr; /* Netmask */ sin = (struct sockaddr_in *)&ia.ifra_mask; sin->sin_family = AF_INET; sin->sin_len = sizeof(struct sockaddr_in); sin->sin_addr.s_addr = inmask; /* Broadcast address */ sin = (struct sockaddr_in *)&ia.ifra_broadaddr; sin->sin_family = AF_INET; sin->sin_len = sizeof(struct sockaddr_in); sin->sin_addr.s_addr = inaddr | ~inmask; rv = rump_sys_ioctl(s, SIOCAIFADDR, &ia); if (rv == -1) { if (noatf) err(1, "SIOCAIFADDR"); else atf_tc_fail_errno("SIOCAIFADDR"); } rump_sys_close(s); } static void __unused netcfg_rump_route(const char *dst, const char *mask, const char *gw) { size_t len; struct { struct rt_msghdr m_rtm; uint8_t m_space[512]; } m_rtmsg; #define rtm m_rtmsg.m_rtm uint8_t *bp = m_rtmsg.m_space; struct sockaddr_in sinstore; int s, rv; s = rump_sys_socket(PF_ROUTE, SOCK_RAW, 0); if (s == -1) { if (noatf) err(1, "routing socket"); else atf_tc_fail_errno("routing socket"); } memset(&m_rtmsg, 0, sizeof(m_rtmsg)); rtm.rtm_type = RTM_ADD; rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC; rtm.rtm_version = RTM_VERSION; rtm.rtm_seq = 2; rtm.rtm_addrs = RTA_DST | RTA_GATEWAY | RTA_NETMASK; /* dst */ memset(&sinstore, 0, sizeof(sinstore)); sinstore.sin_family = AF_INET; sinstore.sin_len = sizeof(sinstore); sinstore.sin_addr.s_addr = inet_addr(dst); memcpy(bp, &sinstore, sizeof(sinstore)); bp += sizeof(sinstore); /* gw */ memset(&sinstore, 0, sizeof(sinstore)); sinstore.sin_family = AF_INET; sinstore.sin_len = sizeof(sinstore); sinstore.sin_addr.s_addr = inet_addr(gw); memcpy(bp, &sinstore, sizeof(sinstore)); bp += sizeof(sinstore); /* netmask */ memset(&sinstore, 0, sizeof(sinstore)); sinstore.sin_family = AF_INET; sinstore.sin_len = sizeof(sinstore); sinstore.sin_addr.s_addr = inet_addr(mask); memcpy(bp, &sinstore, sizeof(sinstore)); bp += sizeof(sinstore); len = bp - (uint8_t *)&m_rtmsg; rtm.rtm_msglen = len; rv = rump_sys_write(s, &m_rtmsg, len); if (rv != (int)len) { if (noatf) err(1, "write routing message"); else atf_tc_fail_errno("write routing message"); } rump_sys_close(s); } static bool __unused netcfg_rump_pingtest(const char *dst, int ms_timo) { struct timeval tv; struct sockaddr_in sin; struct icmp icmp; socklen_t slen; int s; bool rv = false; s = rump_sys_socket(PF_INET, SOCK_RAW, IPPROTO_ICMP); if (s == -1) return false; tv.tv_sec = ms_timo / 1000; tv.tv_usec = 1000 * (ms_timo % 1000); if (rump_sys_setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) == -1) goto out; memset(&sin, 0, sizeof(sin)); sin.sin_len = sizeof(sin); sin.sin_family = AF_INET; sin.sin_addr.s_addr = inet_addr(dst); memset(&icmp, 0, sizeof(icmp)); icmp.icmp_type = ICMP_ECHO; icmp.icmp_id = htons(37); icmp.icmp_cksum = htons(0xf7da); /* precalc */ slen = sizeof(sin); if (rump_sys_sendto(s, &icmp, sizeof(icmp), 0, (struct sockaddr *)&sin, slen) == -1) { goto out; } if (rump_sys_recvfrom(s, &icmp, sizeof(icmp), 0, (struct sockaddr *)&sin, &slen) == -1) goto out; rv = true; out: rump_sys_close(s); return rv; }
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