2  * hostapd / VLAN initialization
22 static int vlan_if_add(struct hostapd_data *hapd, struct hostapd_vlan *vlan,  in vlan_if_add()  argument
33 			   "VLAN: Refusing to set up VLAN iface %s with WEP",  in vlan_if_add()
34 			   vlan->ifname);  in vlan_if_add()
39 	if (!iface_exists(vlan->ifname))  in vlan_if_add()
40 		ret = hostapd_vlan_if_add(hapd, vlan->ifname);  in vlan_if_add()
49 	ifconfig_up(vlan->ifname); /* else wpa group will fail fatal */  in vlan_if_add()
52 		ret = wpa_auth_ensure_group(hapd->wpa_auth, vlan->vlan_id);  in vlan_if_add()
57 	wpa_printf(MSG_ERROR, "WPA initialization for VLAN %d failed (%d)",  in vlan_if_add()
58 		   vlan->vlan_id, ret);  in vlan_if_add()
59 	if (wpa_auth_release_group(hapd->wpa_auth, vlan->vlan_id))  in vlan_if_add()
60 		wpa_printf(MSG_ERROR, "WPA deinit of %s failed", vlan->ifname);  in vlan_if_add()
63 	if (hostapd_vlan_if_remove(hapd, vlan->ifname))  in vlan_if_add()
64 		wpa_printf(MSG_ERROR, "Removal of %s failed", vlan->ifname);  in vlan_if_add()
70 int vlan_if_remove(struct hostapd_data *hapd, struct hostapd_vlan *vlan)  in vlan_if_remove()  argument
74 	ret = wpa_auth_release_group(hapd->wpa_auth, vlan->vlan_id);  in vlan_if_remove()
77 			   "WPA deinitialization for VLAN %d failed (%d)",  in vlan_if_remove()
78 			   vlan->vlan_id, ret);  in vlan_if_remove()
80 	return hostapd_vlan_if_remove(hapd, vlan->ifname);  in vlan_if_remove()
85 			    struct hostapd_vlan *vlan)  in vlan_dynamic_add()  argument
87 	while (vlan) {  in vlan_dynamic_add()
88 		if (vlan->vlan_id != VLAN_ID_WILDCARD) {  in vlan_dynamic_add()
89 			if (vlan_if_add(hapd, vlan, 1)) {  in vlan_dynamic_add()
91 					   "VLAN: Could not add VLAN %s: %s",  in vlan_dynamic_add()
92 					   vlan->ifname, strerror(errno));  in vlan_dynamic_add()
96 			vlan_newlink(vlan->ifname, hapd);  in vlan_dynamic_add()
100 		vlan = vlan->next;  in vlan_dynamic_add()
108 				struct hostapd_vlan *vlan)  in vlan_dynamic_remove()  argument
112 	while (vlan) {  in vlan_dynamic_remove()
113 		next = vlan->next;  in vlan_dynamic_remove()
117 		if (vlan->vlan_id != VLAN_ID_WILDCARD)  in vlan_dynamic_remove()
118 			vlan_dellink(vlan->ifname, hapd);  in vlan_dynamic_remove()
120 		if (vlan->vlan_id != VLAN_ID_WILDCARD &&  in vlan_dynamic_remove()
121 		    vlan_if_remove(hapd, vlan)) {  in vlan_dynamic_remove()
122 			wpa_printf(MSG_ERROR, "VLAN: Could not remove VLAN "  in vlan_dynamic_remove()
124 				   vlan->ifname, strerror(errno));  in vlan_dynamic_remove()
128 		vlan = next;  in vlan_dynamic_remove()
141 	    !hapd->conf->vlan) {  in vlan_init()
143 		struct hostapd_vlan *vlan;  in vlan_init()  local
146 		vlan = os_zalloc(sizeof(*vlan));  in vlan_init()
147 		if (vlan == NULL) {  in vlan_init()
149 				   "VLAN interfaces");  in vlan_init()
153 		vlan->vlan_id = VLAN_ID_WILDCARD;  in vlan_init()
154 		ret = os_snprintf(vlan->ifname, sizeof(vlan->ifname), "%s.#",  in vlan_init()
156 		if (ret >= (int) sizeof(vlan->ifname)) {  in vlan_init()
158 				   "VLAN: Interface name was truncated to %s",  in vlan_init()
159 				   vlan->ifname);  in vlan_init()
161 			os_free(vlan);  in vlan_init()
164 		vlan->next = hapd->conf->vlan;  in vlan_init()
165 		hapd->conf->vlan = vlan;  in vlan_init()
168 	if (vlan_dynamic_add(hapd, hapd->conf->vlan))  in vlan_init()
177 	vlan_dynamic_remove(hapd, hapd->conf->vlan);  in vlan_deinit()
187 				       struct hostapd_vlan *vlan,  in vlan_add_dynamic()
195 	if (vlan == NULL || vlan->vlan_id != VLAN_ID_WILDCARD)  in vlan_add_dynamic()
198 	wpa_printf(MSG_DEBUG, "VLAN: %s(vlan_id=%d ifname=%s)",  in vlan_add_dynamic()
199 		   __func__, vlan_id, vlan->ifname);  in vlan_add_dynamic()
200 	os_strlcpy(ifname, vlan->ifname, sizeof(ifname));  in vlan_add_dynamic()
221 	os_strlcpy(n->bridge, vlan->bridge, sizeof(n->bridge));  in vlan_add_dynamic()
223 	n->next = hapd->conf->vlan;  in vlan_add_dynamic()
224 	hapd->conf->vlan = n;  in vlan_add_dynamic()
226 	/* hapd->conf->vlan needs this new VLAN here for WPA setup */  in vlan_add_dynamic()
228 		hapd->conf->vlan = n->next;  in vlan_add_dynamic()
239 	struct hostapd_vlan *vlan;  in vlan_remove_dynamic()  local
244 	wpa_printf(MSG_DEBUG, "VLAN: %s(ifname=%s vlan_id=%d)",  in vlan_remove_dynamic()
247 	vlan = hapd->conf->vlan;  in vlan_remove_dynamic()
248 	while (vlan) {  in vlan_remove_dynamic()
249 		if (vlan->vlan_id == vlan_id && vlan->dynamic_vlan > 0) {  in vlan_remove_dynamic()
250 			vlan->dynamic_vlan--;  in vlan_remove_dynamic()
253 		vlan = vlan->next;  in vlan_remove_dynamic()
256 	if (vlan == NULL)  in vlan_remove_dynamic()
259 	if (vlan->dynamic_vlan == 0) {  in vlan_remove_dynamic()
260 		vlan_if_remove(hapd, vlan);  in vlan_remove_dynamic()
262 		vlan_dellink(vlan->ifname, hapd);  in vlan_remove_dynamic()