usr.sbin/rarpd/rarpd.c

226 	struct if_info *ii, *ii2;
251 	for (ii = iflist; ii != NULL; ii = ii->ii_next)
252 		if (strcmp(ifa->ifa_name, ii->ii_ifname) == 0)
255 	if (pass1 && ii != NULL)
260 	if (ii == NULL) {
261 		ii = (struct if_info *)malloc(sizeof(*ii));
262 		if (ii == NULL) {
267 		bzero(ii, sizeof(*ii));
268 		ii->ii_fd = -1;
269 		strlcpy(ii->ii_ifname, ifa->ifa_name, sizeof(ii->ii_ifname));
270 		ii->ii_next = iflist;
271 		iflist = ii;
272 	} else if (!pass1 && ii->ii_ipaddr != 0) {
285 		memcpy(ii2, ii, sizeof(*ii2));
290 		ii = ii2;
295 		ii->ii_ipaddr = SATOSIN(ifa->ifa_addr)->sin_addr.s_addr;
296 		ii->ii_netmask = SATOSIN(ifa->ifa_netmask)->sin_addr.s_addr;
297 		if (ii->ii_netmask == 0)
298 			ii->ii_netmask = ipaddrtonetmask(ii->ii_ipaddr);
299 		if (ii->ii_fd < 0)
300 			ii->ii_fd = rarp_open(ii->ii_ifname);
308 			bcopy(LLADDR(ll), ii->ii_eaddr, 6);
322 	struct if_info *ii, *nii, *lii;
348 	for (ii = iflist; ii != NULL; ii = nii) {
349 		nii = ii->ii_next;
350 		if (ii->ii_ipaddr == 0 ||
351 		    bcmp(ii->ii_eaddr, zero, 6) == 0) {
356 			if (ii->ii_fd >= 0)
357 				close(ii->ii_fd);
358 			free(ii);
361 		lii = ii;
366 		for (ii = iflist; ii != NULL; ii = ii->ii_next)
368 			    ii->ii_ifname, intoa(ntohl(ii->ii_ipaddr)),
369 			    (in_addr_t)ntohl(ii->ii_netmask), eatoa(ii->ii_eaddr));
519 	struct if_info *ii;
541 		for (ii = iflist; ii != NULL; ii = ii->ii_next) {
542 			FD_SET(ii->ii_fd, &fds);
543 			if (ii->ii_fd > maxfd)
544 				maxfd = ii->ii_fd;
554 		for (ii = iflist; ii != NULL; ii = ii->ii_next) {
555 			fd = ii->ii_fd;
574 					rarp_process(ii, bp + hdrlen, caplen);
645  * Answer the RARP request in 'pkt', on the interface 'ii'.  'pkt' has
649 rarp_process(struct if_info *ii, u_char *pkt, u_int len)
678 				      ii->ii_ipaddr & ii->ii_netmask,
679 				      ii->ii_netmask);
682 		       ename, intoa(ntohl(ii->ii_ipaddr & ii->ii_netmask)));
686 		rarp_reply(ii, ep, target_ipaddr, len);
689 		    ii->ii_ifname,
850 rarp_reply(struct if_info *ii, struct ether_header *ep, in_addr_t ipaddr,
867 	bcopy((char *)ii->ii_eaddr, (char *)&ep->ether_shost, 6);
868 	bcopy((char *)ii->ii_eaddr, (char *)&ap->arp_sha, 6);
872 	bcopy((char *)&ii->ii_ipaddr, (char *)ap->arp_spa, 4);
877 	n = write(ii->ii_fd, (char *)ep, len);
881 		logmsg(LOG_INFO, "%s %s at %s REPLIED", ii->ii_ifname,