[PATCH 3/7] Add a per PSK vlan_description

[Tom Barthe <jeltz+hostap@xxxxxxx>]

Signed-off-by: Tom Barthe <jeltz+hostap@xxxxxxx>
---
 src/ap/ap_config.h       |  1 +
 src/ap/ieee802_11_auth.c | 38 +++++++++++++++++++++++++++++++++-----
 2 files changed, 34 insertions(+), 5 deletions(-)

diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h
index 38dd77dc5..e961bcd15 100644
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -152,6 +152,7 @@ struct hostapd_sta_wpa_psk_short {
 	u8 psk[PMK_LEN];
 	char passphrase[MAX_PASSPHRASE_LEN + 1];
 	int ref; /* (number of references held) - 1 */
+	struct vlan_description vlan;
 	u8 tag;
 };
 
diff --git a/src/ap/ieee802_11_auth.c b/src/ap/ieee802_11_auth.c
index 68fbb5d91..c513cd811 100644
--- a/src/ap/ieee802_11_auth.c
+++ b/src/ap/ieee802_11_auth.c
@@ -457,6 +457,8 @@ hostapd_acl_recv_radius(struct radius_msg *msg, struct radius_msg *req,
 	struct hostapd_cached_radius_acl *cache;
 	struct radius_sta *info;
 	struct radius_hdr *hdr = radius_msg_get_hdr(msg);
+	struct hostapd_sta_wpa_psk_short *psk;
+	int vlan_psk_notempty = 1;
 
 	query = hapd->acl_queries;
 	prev = NULL;
@@ -515,13 +517,25 @@ hostapd_acl_recv_radius(struct radius_msg *msg, struct radius_msg *req,
 			info->acct_interim_interval = 0;
 		}
 
-		if (hapd->conf->ssid.dynamic_vlan != DYNAMIC_VLAN_DISABLED)
+		decode_tunnel_passwords(hapd, shared_secret, shared_secret_len,
+					msg, req, cache);
+
+		if (hapd->conf->ssid.dynamic_vlan != DYNAMIC_VLAN_DISABLED) {
+			/*
+			 * Fill in the "default" VLAN (in case there is no
+			 * Tunnel* attribute associated with the PSK)
+			 */
 			info->vlan_id.notempty = !!radius_msg_get_vlanid(
 				msg, &info->vlan_id.untagged,
 				MAX_NUM_TAGGED_VLAN, info->vlan_id.tagged, 0);
-
-		decode_tunnel_passwords(hapd, shared_secret, shared_secret_len,
-					msg, req, cache);
+			/* Fill in per PSK VLAN descriptions */
+			for (psk = info->psk; psk; psk = psk->next) {
+				psk->vlan.notempty = !!radius_msg_get_vlanid(
+					msg, &psk->vlan.untagged,
+					MAX_NUM_TAGGED_VLAN, psk->vlan.tagged,
+					psk->tag);
+			}
+		}
 
 		if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME,
 					    &buf, &len, NULL) == 0) {
@@ -551,8 +565,22 @@ hostapd_acl_recv_radius(struct radius_msg *msg, struct radius_msg *req,
 				       info->vlan_id.tagged[0] ? "+" : "");
 			os_memset(&info->vlan_id, 0, sizeof(info->vlan_id));
 		}
+		for (psk = info->psk; psk; psk = psk->next) {
+			if (psk->vlan.notempty &&
+			    !hostapd_vlan_valid(hapd->conf->vlan, &psk->vlan)) {
+				hostapd_logger(hapd, query->addr,
+					       HOSTAPD_MODULE_RADIUS,
+					       HOSTAPD_LEVEL_INFO,
+					       "Invalid VLAN %d%s received from RADIUS server",
+					       psk->vlan.untagged,
+					       psk->vlan.tagged[0] ? "+" : "");
+				os_memset(&psk->vlan, 0, sizeof(psk->vlan));
+			}
+			vlan_psk_notempty &= psk->vlan.notempty;
+		}
+
 		if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_REQUIRED &&
-		    !info->vlan_id.notempty)
+		    !info->vlan_id.notempty && !vlan_psk_notempty)
 			cache->accepted = HOSTAPD_ACL_REJECT;
 	} else
 		cache->accepted = HOSTAPD_ACL_REJECT;
-- 
2.30.2


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