Exemple #1
0
Fichier : conf.c Projet : sthen/nsh
void conf_interfaces(FILE *output, char *only)
{
	int ifs, flags, ippntd, br;
	char *lladdr;
	char ifdescr[IFDESCRSIZE];

	struct if_nameindex *ifn_list, *ifnp;
	struct ifreq ifr, ifrdesc;
	struct if_data if_data;

	if ((ifn_list = if_nameindex()) == NULL) {
		printf("%% conf_interfaces: if_nameindex failed\n");
		return;
	}

	if ((ifs = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
		printf("%% conf_interfaces socket: %s\n", strerror(errno));
		if_freenameindex(ifn_list);
		return;
	}

	for (ifnp = ifn_list; ifnp->if_name != NULL; ifnp++) {
		if (only && !isprefix(only, ifnp->if_name))
			/* only display interfaces which start with ... */
			continue;
		if (!only && islateif(ifnp->if_name))
			/* interface prefixes to exclude on generic run */
			continue;

		strlcpy(ifr.ifr_name, ifnp->if_name, sizeof(ifr.ifr_name));

		if (ioctl(ifs, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
			printf("%% conf: SIOCGIFFLAGS: %s\n", strerror(errno));
			continue;
		}
		flags = ifr.ifr_flags;

		ifr.ifr_data = (caddr_t)&if_data;
		if (ioctl(ifs, SIOCGIFDATA, (caddr_t)&ifr) < 0) {
			printf("%% conf: SIOCGIFDATA: %s\n", strerror(errno));
			continue;
		}

		/* The output order is important! */

		/* set interface/bridge mode */
		if (!(br = is_bridge(ifs, ifnp->if_name)))
			br = 0;
		fprintf(output, "%s %s\n", br ? "bridge" : "interface",
		    ifnp->if_name);

		/*
		 * description, if available
		 * copied straight from ifconfig.c
		 */
		memset(&ifrdesc, 0, sizeof(ifrdesc));
		strlcpy(ifrdesc.ifr_name, ifnp->if_name,
		    sizeof(ifrdesc.ifr_name));
		ifrdesc.ifr_data = (caddr_t)&ifdescr;
		if (ioctl(ifs, SIOCGIFDESCR, &ifrdesc) == 0 &&
		    strlen(ifrdesc.ifr_data))
			fprintf(output, " description %s\n", ifrdesc.ifr_data);

		if ((lladdr = get_hwdaddr(ifnp->if_name)) != NULL)
			conf_db_single(output, "lladdr", lladdr, ifnp->if_name);
		conf_db_single(output, "rtadvd", NULL, ifnp->if_name);

		conf_vnetid(output, ifs, ifnp->if_name);
		conf_parent(output, ifs, ifnp->if_name);
		conf_rdomain(output, ifs, ifnp->if_name);
		conf_intrtlabel(output, ifs, ifnp->if_name);
		conf_intgroup(output, ifs, ifnp->if_name);
		conf_carp(output, ifs, ifnp->if_name);

		ippntd = conf_ifaddr_dhcp(output, ifnp->if_name, flags);

		if (br) {
			conf_brcfg(output, ifs, ifn_list, ifnp->if_name);
		} else {
			char tmp[24];

			conf_media_status(output, ifs, ifnp->if_name);
			conf_ifmetrics(output, ifs, if_data, ifnp->if_name);
			conf_keepalive(output, ifs, ifnp->if_name);
			conf_pfsync(output, ifs, ifnp->if_name);
			conf_trunk(output, ifs, ifnp->if_name);
			conf_pflow(output, ifs, ifnp->if_name);
			conf_ifxflags(output, ifs, ifnp->if_name);
			if (timeslot_status(ifs, ifnp->if_name, tmp,
			    sizeof(tmp)) == 1) 
				fprintf(output, " timeslots %s\n", tmp);
			if (conf_dhcrelay(ifnp->if_name, tmp, sizeof(tmp))
			    > 0)
				fprintf(output, " dhcrelay %s\n", tmp);
			conf_sppp(output, ifs, ifnp->if_name);
			conf_pppoe(output, ifs, ifnp->if_name);
		}
		conf_ifflags(output, flags, ifnp->if_name, ippntd);
	}
	close(ifs);
	if_freenameindex(ifn_list);
}
Exemple #2
0
void conf_interfaces(FILE *output, char *only)
{
	FILE *dhcpif;
	int ifs, flags, ippntd, br;
	char leasefile[sizeof(LEASEPREFIX)+1+IFNAMSIZ];
	char *lladdr;
	char ifdescr[IFDESCRSIZE];

	struct if_nameindex *ifn_list, *ifnp;
	struct ifreq ifr, ifrdesc;
	struct if_data if_data;
	struct vlanreq vreq;

	if ((ifn_list = if_nameindex()) == NULL) {
		printf("%% conf_interfaces: if_nameindex failed\n");
		return;
	}

	if ((ifs = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
		printf("%% conf_interfaces socket: %s\n", strerror(errno));
		if_freenameindex(ifn_list);
		return;
	}

	for (ifnp = ifn_list; ifnp->if_name != NULL; ifnp++) {
		if (only && !isprefix(only, ifnp->if_name))
			/* only display interfaces which start with ... */
			continue;
		if (!only && islateif(ifnp->if_name))
			/* interface prefixes to exclude on generic run */
			continue;

		strlcpy(ifr.ifr_name, ifnp->if_name, sizeof(ifr.ifr_name));

		if (ioctl(ifs, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
			printf("%% conf: SIOCGIFFLAGS: %s\n", strerror(errno));
			continue;
		}
		flags = ifr.ifr_flags;

		ifr.ifr_data = (caddr_t)&if_data;
		if (ioctl(ifs, SIOCGIFDATA, (caddr_t)&ifr) < 0) {
			printf("%% conf: SIOCGIFDATA: %s\n", strerror(errno));
			continue;
		}

		/*
		 * Keep in mind that the order in which things are displayed
		 * here is important.  For instance, we want to setup the
		 * vlan tag before setting the IP address since the vlan
		 * must know what parent to inherit the parent interface
		 * flags from before it is brought up.  Another example of
		 * this would be that we need to setup the members on a
		 * bridge before we setup flags on them.
		 */

		/*
		 * set interface/bridge mode
		 */
		if (!(br = is_bridge(ifs, ifnp->if_name)))
			br = 0;
		fprintf(output, "%s %s\n", br ? "bridge" : "interface",
		    ifnp->if_name);

		/*
		 * description, if available
		 * copied straight from ifconfig.c
		 */
		memset(&ifrdesc, 0, sizeof(ifrdesc));
		strlcpy(ifrdesc.ifr_name, ifnp->if_name,
		    sizeof(ifrdesc.ifr_name));
		ifrdesc.ifr_data = (caddr_t)&ifdescr;
		if (ioctl(ifs, SIOCGIFDESCR, &ifrdesc) == 0 &&
		    strlen(ifrdesc.ifr_data))
			fprintf(output, " description %s\n", ifrdesc.ifr_data);

		if ((lladdr = get_hwdaddr(ifnp->if_name)) != NULL) {
			/* We assume lladdr only useful if we can get_hwdaddr */
			conf_db_single(output, "lladdr", lladdr, ifnp->if_name);
		}
		conf_db_single(output, "rtsol", NULL, ifnp->if_name);
		conf_db_single(output, "rtadvd", NULL, ifnp->if_name);

		/*
		 * print vlan tag, parent if available.  if a tag is set
		 * but there is no parent, discard.
		 */
		bzero(&vreq, sizeof(struct vlanreq));
		ifr.ifr_data = (caddr_t)&vreq;  

		if (ioctl(ifs, SIOCGETVLAN, (caddr_t)&ifr) != -1) {
			if(vreq.vlr_tag && (vreq.vlr_parent[0] != '\0')) {
				fprintf(output, " vlan %d parent %s",
				    vreq.vlr_tag, vreq.vlr_parent);
				fprintf(output, "\n");
			}
		}

		conf_rdomain(output, ifs, ifnp->if_name);
		conf_intrtlabel(output, ifs, ifnp->if_name);
		conf_intgroup(output, ifs, ifnp->if_name);
		conf_carp(output, ifs, ifnp->if_name);

		snprintf(leasefile, sizeof(leasefile), "%s.%s",
		    LEASEPREFIX, ifnp->if_name);
		if ((dhcpif = fopen(leasefile, "r"))) {
			fprintf(output, " ip dhcp\n");
			fclose(dhcpif);
			conf_ifaddrs(output, ifnp->if_name, flags, AF_INET6);
			ippntd = 1;
		} else {
			ippntd = conf_ifaddrs(output, ifnp->if_name, flags, 0);
		}

		if (br) {
			conf_brcfg(output, ifs, ifn_list, ifnp->if_name);
		} else {
			char tmp[24];

			conf_media_status(output, ifs, ifnp->if_name);
			conf_ifmetrics(output, ifs, if_data, ifnp->if_name);
			conf_keepalive(output, ifs, ifnp->if_name);
			conf_pfsync(output, ifs, ifnp->if_name);
			conf_trunk(output, ifs, ifnp->if_name);
			conf_pflow(output, ifs, ifnp->if_name);
			conf_ifxflags(output, ifs, ifnp->if_name);
			if (timeslot_status(ifs, ifnp->if_name, tmp,
			    sizeof(tmp)) == 1) 
				fprintf(output, " timeslots %s\n", tmp);
			if (conf_dhcrelay(ifnp->if_name, tmp, sizeof(tmp))
			    > 0)
				fprintf(output, " dhcrelay %s\n", tmp);
			conf_sppp(output, ifs, ifnp->if_name);
			conf_pppoe(output, ifs, ifnp->if_name);
		}

		/*
		 * print various flags
		 */
		if (flags & IFF_DEBUG)
			fprintf(output, " debug\n");
		if (flags & (IFF_LINK0|IFF_LINK1|IFF_LINK2)) {
			fprintf(output, " link ");
			if(flags & IFF_LINK0)
				fprintf(output, "0 ");
			if(flags & IFF_LINK1)
				fprintf(output, "1 ");
			if(flags & IFF_LINK2)
				fprintf(output, "2");
			fprintf(output, "\n");
		}
		if (flags & IFF_NOARP)
			fprintf(output, " no arp\n");
		/*
		 * ip X/Y turns the interface up (just like 'no shutdown')
		 * ...but if we never had an ip address set and the interface
		 * is up, we need to save this state explicitly.
		 */
		if (!ippntd && (flags & IFF_UP))
			fprintf(output, " no shutdown\n");
		else if (!(flags & IFF_UP))
			fprintf(output, " shutdown\n");
		fprintf(output, "!\n");
	}
	close(ifs);
	if_freenameindex(ifn_list);
}