1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
9  * This code is derived from software which forms part of the 4.4-Lite
13  * Redistribution and use in source and binary forms, with or without
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
75 static int s = -1; 	/* routing socket */
120 	struct rt_msghdr *rtm = &(m_rtmsg.m_rtm);  in bsd_arp_set()  local
128 	sin->sin_addr = *ia;  in bsd_arp_set()
144 	sin = (struct sockaddr_in *)(rtm + 1);  in bsd_arp_set()
145 	sdl = (struct sockaddr_dl *)(sin->sin_len + (char *)sin);  in bsd_arp_set()
146 	if (sin->sin_addr.s_addr == sin_m.sin_addr.s_addr) {  in bsd_arp_set()
147 		if (sdl->sdl_family == AF_LINK &&  in bsd_arp_set()
148 		    !(rtm->rtm_flags & RTF_GATEWAY)) switch (sdl->sdl_type) {  in bsd_arp_set()
156 				inet_ntoa(sin->sin_addr));  in bsd_arp_set()
162 	if (sdl->sdl_family != AF_LINK) {  in bsd_arp_set()
165 			inet_ntoa(sin->sin_addr));  in bsd_arp_set()
168 	sdl_m.sdl_type = sdl->sdl_type;  in bsd_arp_set()
169 	sdl_m.sdl_index = sdl->sdl_index;  in bsd_arp_set()
179 	struct rt_msghdr *rtm = &m_rtmsg.m_rtm;  in rtmsg()  local
185 	rtm->rtm_flags = flags;  in rtmsg()
186 	rtm->rtm_version = RTM_VERSION;  in rtmsg()
190 		report(LOG_ERR, "set_arp: internal wrong cmd - exiting");  in rtmsg()
194 		rtm->rtm_addrs |= RTA_GATEWAY;  in rtmsg()
195 		rtm->rtm_rmx.rmx_expire = expire_time;  in rtmsg()
196 		rtm->rtm_inits = RTV_EXPIRE;  in rtmsg()
197 		rtm->rtm_flags |= (RTF_HOST | RTF_STATIC | RTF_LLDATA);  in rtmsg()
199 			rtm->rtm_addrs |= RTA_NETMASK;  in rtmsg()
200 			rtm->rtm_flags &= ~RTF_HOST;  in rtmsg()
204 		rtm->rtm_addrs |= RTA_DST;  in rtmsg()
207 	if (rtm->rtm_addrs & (w)) { \  in rtmsg()
214 	rtm->rtm_msglen = cp - (char *)&m_rtmsg;  in rtmsg()
216 	l = rtm->rtm_msglen;  in rtmsg()
217 	rtm->rtm_seq = ++seq;  in rtmsg()
218 	rtm->rtm_type = cmd;  in rtmsg()
223 			return (-1);  in rtmsg()
228 	} while (l > 0 && (rtm->rtm_type != cmd || rtm->rtm_seq != seq || rtm->rtm_pid != getpid()));  in rtmsg()