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The remaining_bits_len is correctly decremented while encoding
CSN_RECURSIVE_ARRAY for fixing the bug.
Details of the bug is in https://projects.osmocom.org/issues/1641
During introduction of basic EGPRS feature new hex dump message
PUASS, from a different working network log was used in Unit test.
It exposed the issue of incorrect handling of recursive array
encoding in osmo-pcu.
Fixes: OS#1641
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This patch is for fixing encoding of padding bits according to the
3gpp spec 44.060 section 11, wherein it shall always start with 0
bit followed with spare padding bits.
During introduction of basic EGPRS feature new hex dump messages
from a different working network log were used in Unit test. These
exposed the issue of incorrect handling of padding bits encoding
in osmo-pcu.
Corrections in the existing test vector of rlcmac is also updated.
In testsuite tbf appropriate corrections for the Tbftest.err is
also done.
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Currently this message is ignored.
Support decoding and handling of this message. Use a bitvec for the
decoder that just represents a BSN sequence without any encoding
details (first bit -> first BSN). Return the corresponding BSN range
(snsmod(bsn_begin + bits_in_bitvec) = bsn_end), so snsmod(bsn_end-1)
is the last BSN if there is at least 1. If bsn_begin == bsn_end, no
BSNs has been added.
Note that this bitvec is not yet used for RBB handling. It just calls
the old rcvd_dl_ack with a faked (all bits are 1) RBB map.
Sponsored-by: On-Waves ehf
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This is required by C++11
csn1.cpp:1147:44: error: invalid suffix on literal; C++11 requires a space between literal and identifier [-Wreserved-user-defined-literal]
LOGPC(DCSN1, LOGL_NOTICE, "%"PRIu64"|", bitvec_read_field(vector, readIndex, bits_to_handle));
Sponsored-by: On-Waves ehf
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Fixes a bug introduced in commit 402cdc. That commit sets direction to
zero so setting it to 1 should be done after the call to
csnStreamInit().
This issue was discovered by the rlcmac test.
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1. ar.direction variable was not initialized
2. overrunning array "data->RLC_DATA" of 20 bytes at byte offset 22 using index "i" (which evaluates to 22)
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This might clash with C++11 and literal values but we will
see that once the compilers enable that by default.
Fixes:
csn1.cpp: In function 'gint16 csnStreamDecoder(csnStream_t*, const CSN_DESCR*, bitvec*, unsigned int&, void*)':
csn1.cpp:864:17: warning: format '%d' expects argument of type 'int', but argument 8 has type 'guint64 {aka long unsigned int}' [-Wformat]
csn1.cpp:1144:15: warning: format '%u' expects argument of type 'unsigned int', but argument 7 has type 'uint64_t {aka long long unsigned int}' [-Wformat]
csn1.cpp:1150:15: warning: format '%u' expects argument of type 'unsigned int', but argument 7 has type 'uint64_t {aka long long unsigned int}' [-Wformat]
csn1.cpp: In function 'gint16 csnStreamEncoder(csnStream_t*, const CSN_DESCR*, bitvec*, unsigned int&, void*)':
csn1.cpp:2119:17: warning: format '%d' expects argument of type 'int', but argument 8 has type 'guint64 {aka long unsigned int}' [-Wformat]
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Fixes:
csn1.cpp:124:20: warning: 'CSN_DESCR_type' defined but not used [-Wunused-variable]
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CSN_RECURSIVE_TARRAY_2.
We should offset pointer to data after each iteration.
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decoding. Part 1.
Generic improvements to the csn.1 dissector include:
• Added a flag to the type descriptor structure so that any type can (potentially) flagged as xxx_OR_NULL. This was specifically needed for UINT_OR_NULL for the ms capabilities struct.
• Changed the CSN_SERIALIZE so that the length of the length field can be specified.
• For CSN_NEXT_EXIST removed the requirement that the next type be CSN_END, to allow truncation of multiple IEs.
• For CSN_LEFT_ALIGNED_VAR_BITMAP corrected the handling of bit_offset.
• Added a new type CSN_PADDING_BITS to make inspection of padding bits more convenient.
• Improved the CSN_RECURSIVE_TARRAY_1 to show the array index.
Improvements to the gsm_rlcmac dissector include:
• Rework the definition of EGPRS Ack/Nack Description so that the length IE (and absence thereof) is handled correctly.
• Added Padding Bits definitions to all PDUs
• Change the Multislot_capability_t and Content_t definitions to allow truncation at any IE
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We use unsigned int type for readIndex and writeIndex parameters in bitvec_read_field() and bitvec_write_field() functions.
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The code corresponds to commit a9aa4777cc1144897a77dfb6c5c3d7325705251e
in openbts-p2.8.git (Tue Jun 12 18:14:49 2012 +0400)
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