baseband-devel April 2015

baseband-devel@lists.osmocom.org

8 participants
15 discussions

by Tomcsányi, Domonkos

Hi everyone, I'm following up on this conversation: http://comments.gmane.org/gmane.comp.mobile.osmocom.baseband.devel/1796 It seems like there was no movement in this topic in the last couple of years, so I decided to go ahead and integrate Nico's SAP client into the current master branch and created a patch from it. I tested it (with Kevin's softSIM and a pcsc reader), it worked for me, however it is currently quite ugly: it kind of hand crafts the msgb structure (in l1ctl.c, patch line 121), sorry for that, but I kept getting extra bytes stuffed into the msg that was passed to the sap_interface so I decided to manually go around the problem. I'm of course open to any suggestions to get it cleaner, and then if you think and decide so it could be merged into the master (as far as I see. One thing however that I think is strange, and worth mentioning: I'm not sure why Nico decided to implement the switch between phone and SAP-client inside of l1ctl.c, for me it would feel better to do it in sim.c (since sim.c deals with SIM activities, l1ctl should deal only with L1 stuff...also the current SAP client calls back to sim.c, but receives data from l1ctl - little bit confusing), but I left it as is because of not knowing exactly the thoughts behind it. Regards, Domi

10 years, 2 months

nuttx-bb?

by Craig Comstock

Hi all, Was starting to work on making a usable phone again and wondered about the status of nuttx-bb git on osmocom.org versus nuttx source. It seems nuttx source is more up-to-date and has configs for my device: compal_e86/c139. Wondering if there is something in nuttx-bb that is unique that I should pay attention to? Should nuttx-bb be rebased from nuttx upstream? I was able to cobble together a nuttx.bin but on loading it always stops at 88% with the chainloader. The nuttx.bin is 148K which would seem plenty of room since the C139 has 4000K flash (32MBit) (am I doing that calculation correctly)? I had to fiddle with the MEMORY section of the ld.script in order to make space for nuttx, I'm not too familiar with this sort of thing so may have done something wrong... /* E86 stacked flash 32mbit flash, 4mbit sram, DBB internal 256kb SRAM */ /* 0x800000-0x87ffff */ /* bump up because we have 32mbit instead of 16mbit */ /* compal-loaded binary: our text, initialized data */ LRAM (rw) : ORIGIN = 0x00800000, LENGTH = 0x00020000 TRAM (rw) : ORIGIN = 0x00820000, LENGTH = 0x00040000 /* compal-loaded binary: our unitialized data, stacks, heap */ IRAM (rw) : ORIGIN = 0x00860000, LENGTH = 0x00020000 Originally TRAM was 20000 long and gave me an error on building. Not sure if I can fiddle with these values or not. Thanks,Craig

10 years, 2 months

[PATCH] Fix lintian-reported errors

by Max

Signed-off-by: Max <max.suraev(a)fairwaves.co> --- debian/README.source | 1 + debian/control | 17 ++++++++++++++--- debian/copyright | 15 ++------------- 3 files changed, 17 insertions(+), 16 deletions(-) create mode 100644 debian/README.source diff --git a/debian/README.source b/debian/README.source new file mode 100644 index 0000000..982a696 --- /dev/null +++ b/debian/README.source @@ -0,0 +1 @@ +We do some Debian-specific source patching magic. See debian/patches for clarification. diff --git a/debian/control b/debian/control index 7de6358..1470e73 100644 --- a/debian/control +++ b/debian/control @@ -2,7 +2,7 @@ Source: libosmocore Section: libs Priority: optional Maintainer: Harald Welte <laforge(a)gnumonks.org> -Build-Depends: debhelper (>= 9), autotools-dev, autoconf, automake, libtool, dh-autoreconf, libdpkg-perl, git, doxygen, libpcsclite-dev, pkg-config +Build-Depends: debhelper (>= 9), autotools-dev, autoconf, automake, libtool, dh-autoreconf, libdpkg-perl, git, doxygen, libpcsclite-dev, pkg-config, quilt Standards-Version: 3.9.6 Homepage: http://bb.osmocom.org/trac/wiki/libosmocore Vcs-Git: git://git.osmocom.org/libosmocore.git @@ -14,6 +14,7 @@ Architecture: any Depends: libosmocodec0, libosmocore6, libosmogb3, libosmogsm5, libosmovty1, ${misc:Depends} Multi-Arch: foreign Description: Open Source MObile COMmunications CORE library + Metapackage for Open Source MObile COMmunications CORE library. Package: libosmocodec0 Section: libs @@ -21,6 +22,7 @@ Architecture: any Depends: ${shlibs:Depends}, ${misc:Depends} Multi-Arch: same Description: Osmo codec library + Open Source MObile COMmunications codec library. Package: libosmocore6 Section: libs @@ -28,6 +30,7 @@ Architecture: any Depends: ${shlibs:Depends}, ${misc:Depends} Multi-Arch: same Description: Osmo Core library + Open Source MObile COMmunications CORE library. Package: libosmogb3 Section: libs @@ -35,6 +38,7 @@ Architecture: any Depends: ${shlibs:Depends}, ${misc:Depends} Multi-Arch: same Description: Osmo GPRS GB library + Open Source MObile COMmunications library containing GPRS support functions. Package: libosmogsm5 Section: libs @@ -42,6 +46,7 @@ Architecture: any Depends: ${shlibs:Depends}, ${misc:Depends} Multi-Arch: same Description: Osmo GSM utility library + Open Source MObile COMmunications library implementing various GSM routines. Package: libosmovty1 Section: libs @@ -49,6 +54,7 @@ Architecture: any Depends: ${shlibs:Depends}, ${misc:Depends} Multi-Arch: same Description: Osmo VTY library + Open Source MObile COMmunications library implementing VTY interface. Package: libosmoctrl0 Section: libs @@ -56,6 +62,7 @@ Architecture: any Depends: ${shlibs:Depends}, ${misc:Depends} Multi-Arch: same Description: Osmo control library + Open Source MObile COMmunications control library. Package: libosmosim0 Section: libs @@ -63,19 +70,22 @@ Architecture: any Depends: ${shlibs:Depends}, ${misc:Depends} Multi-Arch: same Description: Osmo SIM library - + Open Source MObile COMmunications SIM library. + Package: libosmocore-dev Section: libdevel Architecture: any -Depends: ${misc:Depends}, libosmocore +Depends: ${misc:Depends}, libosmocore, libjs-jquery Multi-Arch: same Description: Development headers for Open Source MObile COMmunications CORE library + Open Source MObile COMmunications library development files. Package: libosmocore-utils Architecture: any Depends: ${shlibs:Depends}, ${misc:Depends}, libosmocore Multi-Arch: same Description: Utilities for gsm + Open Source MObile COMmunications library utilities. Package: libosmocore-dbg Architecture: any @@ -84,3 +94,4 @@ Priority: extra Depends: libosmocore (= ${binary:Version}), ${misc:Depends} Multi-Arch: same Description: Debug symbols for Open Source MObile COMmunications CORE library + Debug version of Open Source MObile COMmunications CORE library. diff --git a/debian/copyright b/debian/copyright index c450be5..c2bfe66 100644 --- a/debian/copyright +++ b/debian/copyright @@ -6,7 +6,7 @@ It was downloaded from: git://git.osmocom.org/libosmocore.git -Upstream Author(s): +Upstream Authors: Harald Welte <laforge(a)gnumonks.org> Holger Hans Peter Freyther <zecke(a)selfish.org> @@ -36,19 +36,8 @@ Copyright: License: GNU General Public License, Version 2 or later + see "/usr/share/common-licenses/GPL-2" The Debian packaging is: Copyright (C) 2010 Harald Welte <laforge(a)gnumonks.org> - -# Please chose a license for your packaging work. If the program you package -# uses a mainstream license, using the same license is the safest choice. -# Please avoid to pick license terms that are more restrictive than the -# packaged work, as it may make Debian's contributions unacceptable upstream. -# If you just want it to be GPL version 3, leave the following lines in. - -and is licensed under the GPL version 3, -see "/usr/share/common-licenses/GPL-3". - -# Please also look if there are files or directories which have a -# different copyright/license attached and list them here. -- 2.1.0

10 years, 2 months

[PATCH] Add A5/3-4 cipher support

by Max

Signed-off-by: Max <max.suraev(a)fairwaves.co> --- include/osmocom/gsm/a5.h | 2 +- src/gsm/a5.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++-- tests/Makefile.am | 3 +- tests/a5/a5_test.c | 67 +++++++++++++++++++++++++++++++++++---------- tests/a5/a5_test.ok | 24 ++++++++++++++++ 5 files changed, 148 insertions(+), 19 deletions(-) diff --git a/include/osmocom/gsm/a5.h b/include/osmocom/gsm/a5.h index c076734..d22cdbb 100644 --- a/include/osmocom/gsm/a5.h +++ b/include/osmocom/gsm/a5.h @@ -48,7 +48,7 @@ osmo_a5_fn_count(uint32_t fn) } /* Notes: - * - key must be 8 bytes long (or NULL for A5/0) + * - key must be 8 or 16 (for a5/4) 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) diff --git a/src/gsm/a5.c b/src/gsm/a5.c index 10a063e..d0c7c5f 100644 --- a/src/gsm/a5.c +++ b/src/gsm/a5.c @@ -36,23 +36,80 @@ #include <errno.h> #include <string.h> +#include <stdbool.h> #include <osmocom/gsm/a5.h> +#include <osmocom/gsm/kasumi.h> /* Somme OS (like Nuttx) don't have ENOTSUP */ #ifndef ENOTSUP #define ENOTSUP EINVAL #endif +/* ------------------------------------------------------------------------ */ +/* A5/3&4 */ +/* ------------------------------------------------------------------------ */ + +/*! \brief Generate a GSM A5/4 cipher stream + * \param[in] key 16 byte array for the key (as received from the SIM) + * \param[in] fn Frame number + * \param[out] dl Pointer to array of ubits to return Downlink cipher stream + * \param[out] ul Pointer to array of ubits to return Uplink cipher stream + * \param[in] fn_correct true if fn is a real GSM frame number and thus requires internal conversion + * + * Either (or both) of dl/ul should be NULL if not needed. + * + * Implementation based on specifications from 3GPP TS 55.216, 3GPP TR 55.919 and ETSI TS 135 202 + * with slight simplifications (CE hardcoded to 0). + */ +void +_a5_4(const uint8_t *ck, uint32_t fn, ubit_t *dl, ubit_t *ul, bool fn_correct) +{ + uint8_t i, gamma[32], uplink[15]; + uint32_t fn_count = (fn_correct) ? osmo_a5_fn_count(fn) : fn; + + if (ul) { + _kasumi_kgcore(0xF, 0, fn_count, 0, ck, gamma, 228); + for(i = 0; i < 15; i++) uplink[i] = (gamma[i + 14] << 2) + (gamma[i + 15] >> 6); + osmo_pbit2ubit(ul, uplink, 114); + } + if (dl) { + _kasumi_kgcore(0xF, 0, fn_count, 0, ck, gamma, 114); + osmo_pbit2ubit(dl, gamma, 114); + } +} + +/*! \brief Generate a GSM A5/3 cipher stream + * \param[in] key 8 byte array for the key (as received from the SIM) + * \param[in] fn Frame number + * \param[out] dl Pointer to array of ubits to return Downlink cipher stream + * \param[out] ul Pointer to array of ubits to return Uplink cipher stream + * \param[in] fn_correct true if fn is a real GSM frame number and thus requires internal conversion + * + * Either (or both) of dl/ul should be NULL if not needed. + * + * Implementation based on specifications from 3GPP TS 55.216, 3GPP TR 55.919 and ETSI TS 135 202 + * with slight simplifications (CE hardcoded to 0). + */ +void +_a5_3(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul, bool fn_correct) +{ + uint8_t ck[16]; + memcpy(ck, key, 8); + memcpy(ck + 8, key, 8); + /* internal function require 128 bit key so we expand by concatenating supplied 64 bit key */ + _a5_4(ck, fn, dl, ul, fn_correct); +} + /*! \brief Main method to generate a A5/x cipher stream * \param[in] n Which A5/x method to use - * \param[in] key 8 byte array for the key (as received from the SIM) + * \param[in] key 8 or 16 (for a5/4) byte array for the key (as received from the SIM) * \param[in] fn Frame number * \param[out] dl Pointer to array of ubits to return Downlink cipher stream * \param[out] ul Pointer to array of ubits to return Uplink cipher stream * \returns 0 for success, -ENOTSUP for invalid cipher selection. * - * Currently A5/[0-2] are supported. + * Currently A5/[0-4] are supported. * Either (or both) of dl/ul can be NULL if not needed. */ int @@ -75,8 +132,16 @@ osmo_a5(int n, const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul) osmo_a5_2(key, fn, dl, ul); break; + case 3: + _a5_3(key, fn, dl, ul, true); + break; + + case 4: + _a5_4(key, fn, dl, ul, true); + break; + default: - /* a5/[3..7] not supported here/yet */ + /* a5/[5..7] not supported here/yet */ return -ENOTSUP; } diff --git a/tests/Makefile.am b/tests/Makefile.am index 2c80063..809bf64 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -18,8 +18,9 @@ endif utils_utils_test_SOURCES = utils/utils_test.c utils_utils_test_LDADD = $(top_builddir)/src/libosmocore.la -a5_a5_test_SOURCES = a5/a5_test.c +a5_a5_test_SOURCES = a5/a5_test.c ../src/gsm/a5.c a5_a5_test_LDADD = $(top_builddir)/src/libosmocore.la $(top_builddir)/src/gsm/libosmogsm.la +a5_a5_test_LDFLAGS = -static kasumi_kasumi_test_SOURCES = kasumi/kasumi_test.c ../src/gsm/kasumi.c kasumi_kasumi_test_LDADD = $(top_builddir)/src/libosmocore.la $(top_builddir)/src/gsm/libosmogsm.la diff --git a/tests/a5/a5_test.c b/tests/a5/a5_test.c index 14436f1..0dbc6fb 100644 --- a/tests/a5/a5_test.c +++ b/tests/a5/a5_test.c @@ -2,6 +2,7 @@ #include <stdlib.h> #include <stdint.h> #include <string.h> +#include <stdbool.h> #include <osmocom/core/bits.h> #include <osmocom/core/utils.h> @@ -36,24 +37,48 @@ static const uint8_t ul[] = { 0x80, 0xba, 0xab, 0xc0, 0x59, 0x26, 0x40, }; -static const char * -binstr(ubit_t *d, int n) +static inline bool print_a5(int n, int k, const char * dir, const ubit_t * out, const char * block) { - static char str[256]; - int i; + uint8_t len = 114 / 8 + 1, buf[len], res[len]; + printf("A5/%d - %s: %s => ", n, dir, osmo_ubit_dump(out, 114)); + osmo_hexparse(block, res, len); + osmo_ubit2pbit(buf, out, 114); + if (0 != memcmp(buf, res, len)) { + printf("FAIL\nGOT: [%d] %s\nEXP: [%d] %s\n", k, osmo_hexdump_nospc(buf, len), k, osmo_hexdump_nospc(res, len)); + return false; + } + printf("OK\n"); + return true; +} + +static inline bool test_a53(const char * kc, uint32_t count, const char * block1, const char * block2) +{ + ubit_t dlout[114], ulout[114]; + uint8_t key[8]; + + osmo_hexparse(kc, key, 8); + _a5_3(key, count, dlout, NULL, false); + _a5_3(key, count, NULL, ulout, false); - for (i=0; i<n; i++) - str[i] = d[i] ? '1' : '0'; + return print_a5(3, 8, "DL", dlout, block1) & print_a5(3, 8, "UL", ulout, block2); +} + +static inline bool test_a54(const char * kc, uint32_t count, const char * block1, const char * block2) +{ + ubit_t dlout[114], ulout[114]; + uint8_t key[16]; - str[i] = '\0'; + osmo_hexparse(kc, key, 16); + _a5_4(key, count, dlout, NULL, false); + _a5_4(key, count, NULL, ulout, false); - return str; + return print_a5(4, 8, "DL", dlout, block1) & print_a5(4, 8, "UL", ulout, block2); } + int main(int argc, char **argv) { - ubit_t exp[114]; - ubit_t out[114]; + ubit_t exp[114], out[114]; int n, i; for (n=0; n<3; n++) { @@ -66,13 +91,13 @@ int main(int argc, char **argv) osmo_a5(n, key, fn, out, NULL); - printf("A5/%d - DL: %s", n, binstr(out, 114)); + printf("A5/%d - DL: %s", n, osmo_ubit_dump(out, 114)); if (!memcmp(exp, out, 114)) printf(" => OK\n"); else { printf(" => BAD\n"); - printf(" Expected: %s", binstr(out, 114)); + printf(" Expected: %s", osmo_ubit_dump(out, 114)); fprintf(stderr, "[!] A5/%d DL failed", n); exit(1); } @@ -82,17 +107,31 @@ int main(int argc, char **argv) osmo_a5(n, key, fn, NULL, out); - printf("A5/%d - UL: %s", n, binstr(out, 114)); + printf("A5/%d - UL: %s", n, osmo_ubit_dump(out, 114)); if (!memcmp(exp, out, 114)) printf(" => OK\n"); else { printf(" => BAD\n"); - printf(" Expected: %s", binstr(out, 114)); + printf(" Expected: %s", osmo_ubit_dump(out, 114)); fprintf(stderr, "[!] A5/%d UL failed", n); exit(1); } } +// test vectors from 3GPP TS 55.217 and TS 55.218 + test_a53("2BD6459F82C5BC00", 0x24F20F, "889EEAAF9ED1BA1ABBD8436232E440", "5CA3406AA244CF69CF047AADA2DF40"); + test_a53("952C49104881FF48", 0x061272, "FB4D5FBCEE13A33389285686E9A5C0", "25090378E0540457C57E367662E440"); + test_a53("EFA8B2229E720C2A", 0x33FD3F, "0E4015755A336469C3DD8680E30340", "6F10669E2B4E18B042431A28E47F80"); + test_a53("952C49104881FF48", 0x061527, "AB7DB38A573A325DAA76E4CB800A40", "4C4B594FEA9D00FE8978B7B7BC1080"); + test_a53("3451F23A43BD2C87", 0x0E418C, "75F7C4C51560905DFBA05E46FB54C0", "192C95353CDF979E054186DF15BF00"); + test_a53("CAA2639BE82435CF", 0x2FF229, "301437E4D4D6565D4904C631606EC0", "F0A3B8795E264D3E1A82F684353DC0"); + test_a53("7AE67E87400B9FA6", 0x2F24E5, "F794290FEF643D2EA348A7796A2100", "CB6FA6C6B8A705AF9FEFE975818500"); + test_a53("58AF69935540698B", 0x05446B, "749CA4E6B691E5A598C461D5FE4740", "31C9E444CD04677ADAA8A082ADBC40"); + test_a53("017F81E5F236FE62", 0x156B26, "2A6976761E60CC4E8F9F52160276C0", "A544D8475F2C78C35614128F1179C0"); + test_a53("1ACA8B448B767B39", 0x0BC3B5, "A4F70DC5A2C9707F5FA1C60EB10640", "7780B597B328C1400B5C74823E8500"); + test_a54("3D43C388C9581E337FF1F97EB5C1F85E", 0x35D2CF, "A2FE3034B6B22CC4E33C7090BEC340", "170D7497432FF897B91BE8AECBA880"); + test_a54("A4496A64DF4F399F3B4506814A3E07A1", 0x212777, "89CDEE360DF9110281BCF57755A040", "33822C0C779598C9CBFC49183AF7C0"); + return 0; } diff --git a/tests/a5/a5_test.ok b/tests/a5/a5_test.ok index 4497e14..cefcdb6 100644 --- a/tests/a5/a5_test.ok +++ b/tests/a5/a5_test.ok @@ -4,3 +4,27 @@ A5/1 - DL: 110010111010001001010101011101100001011101011101001110110001110001111 A5/1 - UL: 110110010000001101011110000011110010101011101100000100111001101000000101110101001010100001111011101100010110010010 => OK A5/2 - DL: 010001011001110010001000110000111000001010110111111111111011001110011000110100101111100101101110000011110001010010 => OK A5/2 - UL: 111100000011101010101100110111101110001101011011010111100110010110000000101110101010101111000000010110010010011001 => OK +A5/3 - DL: 100010001001111011101010101011111001111011010001101110100001101010111011110110000100001101100010001100101110010001 => OK +A5/3 - UL: 010111001010001101000000011010101010001001000100110011110110100111001111000001000111101010101101101000101101111101 => OK +A5/3 - DL: 111110110100110101011111101111001110111000010011101000110011001110001001001010000101011010000110111010011010010111 => OK +A5/3 - UL: 001001010000100100000011011110001110000001010100000001000101011111000101011111100011011001110110011000101110010001 => OK +A5/3 - DL: 000011100100000000010101011101010101101000110011011001000110100111000011110111011000011010000000111000110000001101 => OK +A5/3 - UL: 011011110001000001100110100111100010101101001110000110001011000001000010010000110001101000101000111001000111111110 => OK +A5/3 - DL: 101010110111110110110011100010100101011100111010001100100101110110101010011101101110010011001011100000000000101001 => OK +A5/3 - UL: 010011000100101101011001010011111110101010011101000000001111111010001001011110001011011110110111101111000001000010 => OK +A5/3 - DL: 011101011111011111000100110001010001010101100000100100000101110111111011101000000101111001000110111110110101010011 => OK +A5/3 - UL: 000110010010110010010101001101010011110011011111100101111001111000000101010000011000011011011111000101011011111100 => OK +A5/3 - DL: 001100000001010000110111111001001101010011010110010101100101110101001001000001001100011000110001011000000110111011 => OK +A5/3 - UL: 111100001010001110111000011110010101111000100110010011010011111000011010100000101111011010000100001101010011110111 => OK +A5/3 - DL: 111101111001010000101001000011111110111101100100001111010010111010100011010010001010011101111001011010100010000100 => OK +A5/3 - UL: 110010110110111110100110110001101011100010100111000001011010111110011111111011111110100101110101100000011000010100 => OK +A5/3 - DL: 011101001001110010100100111001101011011010010001111001011010010110011000110001000110000111010101111111100100011101 => OK +A5/3 - UL: 001100011100100111100100010001001100110100000100011001110111101011011010101010001010000010000010101011011011110001 => OK +A5/3 - DL: 001010100110100101110110011101100001111001100000110011000100111010001111100111110101001000010110000000100111011011 => OK +A5/3 - UL: 101001010100010011011000010001110101111100101100011110001100001101010110000101000001001010001111000100010111100111 => OK +A5/3 - DL: 101001001111011100001101110001011010001011001001011100000111111101011111101000011100011000001110101100010000011001 => OK +A5/3 - UL: 011101111000000010110101100101111011001100101000110000010100000000001011010111000111010010000010001111101000010100 => OK +A5/4 - DL: 101000101111111000110000001101001011011010110010001011001100010011100011001111000111000010010000101111101100001101 => OK +A5/4 - UL: 000101110000110101110100100101110100001100101111111110001001011110111001000110111110100010101110110010111010100010 => OK +A5/4 - DL: 100010011100110111101110001101100000110111111001000100010000001010000001101111001111010101110111010101011010000001 => OK +A5/4 - UL: 001100111000001000101100000011000111011110010101100110001100100111001011111111000100100100011000001110101111011111 => OK -- 2.1.0

10 years, 2 months

[PATCH] fix compiler warnings for a5 tests

by Max

Signed-off-by: Max <max.suraev(a)fairwaves.co> --- tests/a5/a5_test.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tests/a5/a5_test.c b/tests/a5/a5_test.c index 0dbc6fb..6d7cc3c 100644 --- a/tests/a5/a5_test.c +++ b/tests/a5/a5_test.c @@ -8,6 +8,10 @@ #include <osmocom/core/utils.h> #include <osmocom/gsm/a5.h> +// make compiler happy +void _a5_3(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul, bool fn_correct); +void _a5_4(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul, bool fn_correct); + static const uint8_t key[] = { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef }; static const uint32_t fn = 123456; static const uint8_t dl[] = { -- 2.1.0

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baseband-devel April 2015