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-rw-r--r--gpxe/src/include/gpxe/sec80211.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/gpxe/src/include/gpxe/sec80211.h b/gpxe/src/include/gpxe/sec80211.h
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+/*
+ * Copyright (c) 2009 Joshua Oreman <oremanj@rwcr.net>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _GPXE_SEC80211_H
+#define _GPXE_SEC80211_H
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <gpxe/net80211.h>
+#include <errno.h>
+
+/** @file
+ *
+ * Definitions for general secured-network routines.
+ *
+ * Any function in this file which may be referenced by code which is
+ * not exclusive to encryption-enabled builds (e.g. sec80211_detect(),
+ * which is called by net80211_probe_step() to fill the net80211_wlan
+ * structure's security fields) must be declared as a weak symbol,
+ * using an inline interface similar to that used for
+ * sec80211_detect() below. This prevents secure network support from
+ * bloating general builds by any more than a few tiny hooks to call
+ * crypto functions when crypto structures are non-NULL.
+ */
+
+int _sec80211_detect ( struct io_buffer *iob,
+ enum net80211_security_proto *secprot,
+ enum net80211_crypto_alg *crypt )
+ __attribute__ (( weak ));
+
+
+/**
+ * Inline safety wrapper for _sec80211_detect()
+ *
+ * @v iob I/O buffer containing beacon frame
+ * @ret secprot Security handshaking protocol used by network
+ * @ret crypt Cryptosystem used by network
+ * @ret rc Return status code
+ *
+ * This function transparently calls _sec80211_detect() if the file
+ * containing it was compiled in, or returns an error indication of
+ * @c -ENOTSUP if not.
+ */
+static inline int sec80211_detect ( struct io_buffer *iob,
+ enum net80211_security_proto *secprot,
+ enum net80211_crypto_alg *crypt ) {
+ if ( _sec80211_detect )
+ return _sec80211_detect ( iob, secprot, crypt );
+ return -ENOTSUP;
+}
+
+int sec80211_detect_ie ( int is_rsn, u8 *start, u8 *end,
+ enum net80211_security_proto *secprot,
+ enum net80211_crypto_alg *crypt );
+u8 * sec80211_find_rsn ( union ieee80211_ie *ie, void *ie_end,
+ int *is_rsn, u8 **end );
+
+int sec80211_install ( struct net80211_crypto **which,
+ enum net80211_crypto_alg crypt,
+ const void *key, int len, const void *rsc );
+
+u32 sec80211_rsn_get_crypto_desc ( enum net80211_crypto_alg crypt, int rsnie );
+u32 sec80211_rsn_get_akm_desc ( enum net80211_security_proto secprot,
+ int rsnie );
+enum net80211_crypto_alg sec80211_rsn_get_net80211_crypt ( u32 desc );
+
+#endif /* _GPXE_SEC80211_H */
+