diff options
Diffstat (limited to 'src/shared/libosmocore/include/osmocom/gsm/a5.h')
-rw-r--r-- | src/shared/libosmocore/include/osmocom/gsm/a5.h | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/src/shared/libosmocore/include/osmocom/gsm/a5.h b/src/shared/libosmocore/include/osmocom/gsm/a5.h deleted file mode 100644 index 649dbab1..00000000 --- a/src/shared/libosmocore/include/osmocom/gsm/a5.h +++ /dev/null @@ -1,63 +0,0 @@ -/* - * a5.h - * - * Copyright (C) 2011 Sylvain Munaut <tnt@246tNt.com> - * - * All Rights Reserved - * - * 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 - * (at your option) 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., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#ifndef __OSMO_A5_H__ -#define __OSMO_A5_H__ - -#include <stdint.h> - -#include <osmocom/core/bits.h> - -/*! \defgroup a5 GSM A5 ciphering algorithm - * @{ - */ - -/*! \file gsm/a5.h - * \brief Osmocom GSM A5 ciphering algorithm header - */ - -/*! \brief Converts a frame number into the 22 bit number used in A5/x - * \param[in] fn The true framenumber - * \return 22 bit word - */ -static inline uint32_t -osmo_a5_fn_count(uint32_t fn) -{ - int t1 = fn / (26 * 51); - int t2 = fn % 26; - int t3 = fn % 51; - return (t1 << 11) | (t3 << 5) | t2; -} - - /* Notes: - * - key must be 8 bytes long (or NULL for A5/0) - * - the dl and ul pointer must be either NULL or 114 bits long - * - fn is the _real_ GSM frame number. - * (converted internally to fn_count) - */ -void osmo_a5(int n, const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul); -void osmo_a5_1(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul); -void osmo_a5_2(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul); - -/*! @} */ - -#endif /* __OSMO_A5_H__ */ |