X-Git-Url: http://www.project-moonshot.org/gitweb/?p=mech_eap.git;a=blobdiff_plain;f=libeap%2Fsrc%2Fap%2Fneighbor_db.c;fp=libeap%2Fsrc%2Fap%2Fneighbor_db.c;h=a2efff6182868dda0a55c2238592dfc780add645;hp=0000000000000000000000000000000000000000;hb=d1dd9aae6741e74f20bfc35e1db598652680279d;hpb=bd3bd69af16ab99706ba70ed11a3e291e968e5c6

diff --git a/libeap/src/ap/neighbor_db.c b/libeap/src/ap/neighbor_db.c
new file mode 100644
index 0000000..a2efff6
--- /dev/null
+++ b/libeap/src/ap/neighbor_db.c
@@ -0,0 +1,133 @@
+/*
+ * hostapd / Neighboring APs DB
+ * Copyright(c) 2013 - 2016 Intel Mobile Communications GmbH.
+ * Copyright(c) 2011 - 2016 Intel Corporation. All rights reserved.
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "hostapd.h"
+#include "neighbor_db.h"
+
+
+struct hostapd_neighbor_entry *
+hostapd_neighbor_get(struct hostapd_data *hapd, const u8 *bssid,
+		     const struct wpa_ssid_value *ssid)
+{
+	struct hostapd_neighbor_entry *nr;
+
+	dl_list_for_each(nr, &hapd->nr_db, struct hostapd_neighbor_entry,
+			 list) {
+		if (os_memcmp(bssid, nr->bssid, ETH_ALEN) == 0 &&
+		    (!ssid ||
+		     (ssid->ssid_len == nr->ssid.ssid_len &&
+		      os_memcmp(ssid->ssid, nr->ssid.ssid,
+				ssid->ssid_len) == 0)))
+			return nr;
+	}
+	return NULL;
+}
+
+
+static void hostapd_neighbor_clear_entry(struct hostapd_neighbor_entry *nr)
+{
+	wpabuf_free(nr->nr);
+	nr->nr = NULL;
+	wpabuf_free(nr->lci);
+	nr->lci = NULL;
+	wpabuf_free(nr->civic);
+	nr->civic = NULL;
+	os_memset(nr->bssid, 0, sizeof(nr->bssid));
+	os_memset(&nr->ssid, 0, sizeof(nr->ssid));
+}
+
+
+static struct hostapd_neighbor_entry *
+hostapd_neighbor_add(struct hostapd_data *hapd)
+{
+	struct hostapd_neighbor_entry *nr;
+
+	nr = os_zalloc(sizeof(struct hostapd_neighbor_entry));
+	if (!nr)
+		return NULL;
+
+	dl_list_add(&hapd->nr_db, &nr->list);
+
+	return nr;
+}
+
+
+int hostapd_neighbor_set(struct hostapd_data *hapd, const u8 *bssid,
+			 const struct wpa_ssid_value *ssid,
+			 const struct wpabuf *nr, const struct wpabuf *lci,
+			 const struct wpabuf *civic)
+{
+	struct hostapd_neighbor_entry *entry;
+
+	entry = hostapd_neighbor_get(hapd, bssid, ssid);
+	if (!entry)
+		entry = hostapd_neighbor_add(hapd);
+	if (!entry)
+		return -1;
+
+	hostapd_neighbor_clear_entry(entry);
+
+	os_memcpy(entry->bssid, bssid, ETH_ALEN);
+	os_memcpy(&entry->ssid, ssid, sizeof(entry->ssid));
+
+	entry->nr = wpabuf_dup(nr);
+	if (!entry->nr)
+		goto fail;
+
+	if (lci) {
+		entry->lci = wpabuf_dup(lci);
+		if (!entry->lci || os_get_time(&entry->lci_date))
+			goto fail;
+	}
+
+	if (civic) {
+		entry->civic = wpabuf_dup(civic);
+		if (!entry->civic)
+			goto fail;
+	}
+
+	return 0;
+
+fail:
+	hostapd_neighbor_remove(hapd, bssid, ssid);
+	return -1;
+}
+
+
+int hostapd_neighbor_remove(struct hostapd_data *hapd, const u8 *bssid,
+			    const struct wpa_ssid_value *ssid)
+{
+	struct hostapd_neighbor_entry *nr;
+
+	nr = hostapd_neighbor_get(hapd, bssid, ssid);
+	if (!nr)
+		return -1;
+
+	hostapd_neighbor_clear_entry(nr);
+	dl_list_del(&nr->list);
+	os_free(nr);
+
+	return 0;
+}
+
+
+void hostpad_free_neighbor_db(struct hostapd_data *hapd)
+{
+	struct hostapd_neighbor_entry *nr, *prev;
+
+	dl_list_for_each_safe(nr, prev, &hapd->nr_db,
+			      struct hostapd_neighbor_entry, list) {
+		hostapd_neighbor_clear_entry(nr);
+		dl_list_del(&nr->list);
+		os_free(nr);
+	}
+}