Accumulative patch from commit b57b560034f1bb1ad3a3892228940dde97323c0e
b57b560 wpa_supplicant: Default to nl80211 instead of wext
ee28f08 hostapd: Add more messages for error paths
61d2ce2 hostapd: Reject configuration file without interface parameter
a8a7890 Clear extra_blacklist_count on FLUSH command
c646862 WPS ER: Allow UPnP interface to be forced
728d971 Use status code 17 (unable to handle new STA) on max-STA limitation
5e24dc8 Add dup_binstr() to help common binary string tasks
8b44ad7 Use os_zalloc() instead of os_malloc() + os_memset()
2c48211 FT RRB: Validate os_malloc() return value before using it
7ca902b Make vlan_file optional if dynamic_vlan is used
bdb112d Add bitfield routines
04382f7 NFC: Add no waiting and no multiple operations options for scripts
fe90496 WPS: Fix AP auto configuration on config token generation
28fcfb6 NFC: Increase wpa_cli command buffer size
8f7a6dd WPS NFC: Allow Device Password ID override for selected registrar
aaecb69 WPS: Use generic MAC Address attribute builder
9ccd916 P2P: Clean up channel--frequency conversion functions
e864c0a Use a common frequency to channel conversion function
02db75b FT: Reset FT flag upon STA deauthentication
7800d45 P2P: Set P2P_DEV_PEER_WAITING_RESPONSE from TX status callback
d78d3c6 EAP peer: Add check before calling getSessionId method
dd57970 Disable network temporarily on repeated connection failures
Change-Id: If8078d5c1ff40ea806e844543cf6f2bf9d24b7ac
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/utils/bitfield.h b/src/utils/bitfield.h
new file mode 100644
index 0000000..7050a20
--- /dev/null
+++ b/src/utils/bitfield.h
@@ -0,0 +1,21 @@
+/*
+ * Bitfield
+ * Copyright (c) 2013, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef BITFIELD_H
+#define BITFIELD_H
+
+struct bitfield;
+
+struct bitfield * bitfield_alloc(size_t max_bits);
+void bitfield_free(struct bitfield *bf);
+void bitfield_set(struct bitfield *bf, size_t bit);
+void bitfield_clear(struct bitfield *bf, size_t bit);
+int bitfield_is_set(struct bitfield *bf, size_t bit);
+int bitfield_get_first_zero(struct bitfield *bf);
+
+#endif /* BITFIELD_H */