Exemple #1
0
int vlan_remove_dynamic(struct hostapd_data *hapd, int vlan_id)
{
	struct hostapd_vlan *vlan;

	if (vlan_id <= 0 || vlan_id > MAX_VLAN_ID)
		return 1;

	wpa_printf(MSG_DEBUG, "VLAN: %s(ifname=%s vlan_id=%d)",
		   __func__, hapd->conf->iface, vlan_id);

	vlan = hapd->conf->vlan;
	while (vlan) {
		if (vlan->vlan_id == vlan_id && vlan->dynamic_vlan > 0) {
			vlan->dynamic_vlan--;
			break;
		}
		vlan = vlan->next;
	}

	if (vlan == NULL)
		return 1;

	if (vlan->dynamic_vlan == 0) {
		vlan_if_remove(hapd, vlan);
#ifdef CONFIG_FULL_DYNAMIC_VLAN
		vlan_dellink(vlan->ifname, hapd);
#endif /* CONFIG_FULL_DYNAMIC_VLAN */
	}

	return 0;
}
Exemple #2
0
static void
vlan_read_ifnames(struct nlmsghdr *h, size_t len, int del,
		  struct hostapd_data *hapd)
{
	struct ifinfomsg *ifi;
	int attrlen, nlmsg_len, rta_len;
	struct rtattr *attr;

	if (len < sizeof(*ifi))
		return;

	ifi = NLMSG_DATA(h);

	nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));

	attrlen = h->nlmsg_len - nlmsg_len;
	if (attrlen < 0)
		return;

	attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);

	rta_len = RTA_ALIGN(sizeof(struct rtattr));
	while (RTA_OK(attr, attrlen)) {
		char ifname[IFNAMSIZ + 1];

		if (attr->rta_type == IFLA_IFNAME) {
			int n = attr->rta_len - rta_len;
			if (n < 0)
				break;

			os_memset(ifname, 0, sizeof(ifname));

			if ((size_t) n > sizeof(ifname))
				n = sizeof(ifname);
			os_memcpy(ifname, ((char *) attr) + rta_len, n);

			if (del)
				vlan_dellink(ifname, hapd);
			else
				vlan_newlink(ifname, hapd);
		}

		attr = RTA_NEXT(attr, attrlen);
	}
}
Exemple #3
0
static void vlan_dynamic_remove(struct hostapd_data *hapd,
				struct hostapd_vlan *vlan)
{
	struct hostapd_vlan *next;

	while (vlan) {
		next = vlan->next;

		if (vlan->vlan_id != VLAN_ID_WILDCARD &&
		    hapd->drv.vlan_if_remove(hapd, vlan->ifname)) {
			printf("Could not remove VLAN iface: %s: %s\n",
			       vlan->ifname, strerror(errno));
		}
#ifdef CONFIG_FULL_DYNAMIC_VLAN
		if (vlan->clean)
			vlan_dellink(vlan->ifname, hapd);
#endif /* CONFIG_FULL_DYNAMIC_VLAN */

		vlan = next;
	}
}
static void vlan_dynamic_remove(struct hostapd_data *hapd,
				struct hostapd_vlan *vlan)
{
	struct hostapd_vlan *next;

	while (vlan) {
		next = vlan->next;

#ifdef CONFIG_FULL_DYNAMIC_VLAN
		/* vlan_dellink() takes care of cleanup and interface removal */
		if (vlan->vlan_id != VLAN_ID_WILDCARD)
			vlan_dellink(vlan->ifname, hapd);
#else /* CONFIG_FULL_DYNAMIC_VLAN */
		if (vlan->vlan_id != VLAN_ID_WILDCARD &&
		    vlan_if_remove(hapd, vlan)) {
			wpa_printf(MSG_ERROR, "VLAN: Could not remove VLAN "
				   "iface: %s: %s",
				   vlan->ifname, strerror(errno));
		}
#endif /* CONFIG_FULL_DYNAMIC_VLAN */

		vlan = next;
	}
}
Exemple #5
0
static void
vlan_read_ifnames(struct nlmsghdr *h, size_t len, int del,
		  struct hostapd_data *hapd)
{
	struct ifinfomsg *ifi;
	int attrlen, nlmsg_len, rta_len;
	struct rtattr *attr;
	char ifname[IFNAMSIZ + 1];

	if (len < sizeof(*ifi))
		return;

	ifi = NLMSG_DATA(h);

	nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));

	attrlen = h->nlmsg_len - nlmsg_len;
	if (attrlen < 0)
		return;

	attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);

	os_memset(ifname, 0, sizeof(ifname));
	rta_len = RTA_ALIGN(sizeof(struct rtattr));
	while (RTA_OK(attr, attrlen)) {
		if (attr->rta_type == IFLA_IFNAME) {
			int n = attr->rta_len - rta_len;
			if (n < 0)
				break;

			if ((size_t) n >= sizeof(ifname))
				n = sizeof(ifname) - 1;
			os_memcpy(ifname, ((char *) attr) + rta_len, n);

		}

		attr = RTA_NEXT(attr, attrlen);
	}

	if (!ifname[0])
		return;
	if (del && if_nametoindex(ifname)) {
		 /* interface still exists, race condition ->
		  * iface has just been recreated */
		return;
	}

	wpa_printf(MSG_DEBUG,
		   "VLAN: RTM_%sLINK: ifi_index=%d ifname=%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)",
		   del ? "DEL" : "NEW",
		   ifi->ifi_index, ifname, ifi->ifi_family, ifi->ifi_flags,
		   (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
		   (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
		   (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
		   (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");

	if (del)
		vlan_dellink(ifname, hapd);
	else
		vlan_newlink(ifname, hapd);
}