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Addresses:
CCLD utils/utils_test
utils_test.o: In function `test_idtag_parsing':
git/libosmocore/tests/utils/utils_test.c:64: undefined reference to `ipa_ccm_idtag_parse_off'
Sponsored-by: On-Waves ehf
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The current functions are used to 'qualify' an APN from the
user-supplied APN name (name identifier) towards the fully-qualified
APN name which is used in the .grps DNS zone.
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These patches enhance the Supplementary Service (SS) processing from
only being able to handle USSD to other SS, specifically activation,
deactivation and interrogation of those SS. Registration is not yet
implemented.
include/osmocom/gsm/protocol/gsm_09_02.h has been added with needed
values for SS.
Modified by Harald Welte to keep the old ussd-only functiosn for API/ABI
stability.
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Those hex strings can then be copy+pasted into the OSmoNITB VTY
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As we are breaking builds by moving functions from libosmo-abis to
libosmocore anyway, we might as well give functions more appropriate
names. ipaccess is a company, while IPA is the multiplex protocol, and
CCM is the protocol used for establishing identities on the IPA
multiplex.
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... used to be oml_{osmo,ipa}_magic in osmo-bts
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Rename NM_ATT_O_REDUCEPOWER to NM_ATT_OSMO_REDUCEPOWER, which
makes it more clear that this is an osmcoom specific attribute.
Also, we cannot simply overload 0x01 as an already defined OML
attribute. The problem is quite simple: When we use abis_nm_att_tlvdef
during the TLV parse, 0x01 will match to NM_ATT_ABIS_CHANNEL,
which is defined as { TLV_TYPE_FIXED, 3 }.
So instead, we need to introduce a new abis_nm_osmo_att_tlvdef[],
which has to be patched into abis_nm_att_tlvdef[] by the means of
tlv_def_patch(), exactly how we do it for bs-11 and nanobts specific
attributes.
I'm using 0xfe for the attribute, as 0xfe doesn't overlap with the IPA
specific attribues (and we might want to combine/merge the 12.21 plus
IPA plus osmocom spefici attributes)
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This API allows you to get the lapdm_datalink for a SAPI. It's needed in
the lapdm_test, so make it public.
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The 7bit<->8bit encoding/decoding functions didn't check whether
there is still enough space in the destination buffer. Therefore a
buffer size parameter has been added to each of the functions which
is used to truncate the output if the buffer is too small.
In addition, the return value of the decoding functions has been
changed to number of characters written (excluding \0), so this
value is always equal to strlen(decoded).
The old functions are still available as wrapper functions.
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Handling 7-bit coding is a little different for USSD, as TS 03.38
states:
To avoid the situation where the receiving entity confuses 7 binary
zero pad bits as the @ character, the carriage return or <CR>
character shall be used for padding in this situation [...].
If <CR> is intended to be the last character and the message
(including the wanted <CR>) ends on an octet boundary, then another
<CR> must be added together with a padding bit 0. The receiving entity
will perform the carriage return function twice, but this will not
result in misoperation as the definition of <CR> [...] is identical to
the definition of <CR><CR>.
The receiving entity shall remove the final <CR> character where the
message ends on an octet boundary with <CR> as the last character.
Jacob has verified the fix with fakeBTS and the wireshark dissector.
Fixes: OW#947
Reviewed-by: Jacob Erlbeck <jerlbeck@sysmocom.de>
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This is required for encoding the SMS header using the alpha numeric
rules.
Reviewed-by: Jacob Erlbeck <jerlbeck@sysmocom.de>
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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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This new TLV type is specific to TS 44.318. Contrary to the TvLV type
of TS 08.16/08.18, it has an inverted meaning of the extension (0x80)
bit:
* if the extension bit is not set, 1-byte length
* if the extension bit is set, 2-byte length
Futhermore, it has support for variable-length tags, where the tag part
can be optionally two bytes in length. As this esoteric option hasn't
been seen in the wild yet, we only add encoding support but skip
decoding for now.
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There is now a "libosmogsm.map" file containing an explicit list of
to-be-exported symbols. This should prevent us from leaking non-static
symbols into the global namespace.
A similar scheme should be adopted by all other osmocom libraries
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