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Add osmo_hexdump_buf() as an all-purpose hexdump function, which all other
osmo_hexdump_*() implementations now call. It absorbs the static
_osmo_hexdump(). Add tests for osmo_hexdump_buf().
Rationale: recently during patch review, a situation came up where two hexdumps
in a single printf would have been useful. Now I've faced a similar situation
again, in ongoing development. So I decided it is time to provide this API.
The traditional osmo_hexdump() API returns a non-const char*, which should
probably have been a const instead. Particularly this new function may return a
string constant "" if the buf is NULL or empty, so return const char*. That is
why the older implementations calling osmo_hexdump_buf() separately return the
buffer instead of the const return value directly.
Change-Id: I590595567b218b24e53c9eb1fd8736c0324d371d
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Verify 14 digit and 15 digit IMEI strings. OsmoHLR will use the 14
digit version to check IMEIs before writing them to the DB.
Place the Luhn checksum code in a dedicated osmo_luhn() function, so
it can be used elsewhere.
Related: OS#2541
Change-Id: Id2d2a3a93b033bafc74c62e15297034bf4aafe61
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Add a standalone bcd-to-string conversion function with generic parameters.
Add a regression test in utils_test.c.
So far there is no single universal implementation that converts a BCD to a
string. I could only find gsm48_mi_to_string(), which also interprets
surrounding bytes, MI type and TMSI as non-BCD value.
The idea is to use this function from gsm48_mi_to_string() and similar
implementations in subsequent commits.
Root cause: in osmo-msc, I want to have an alternative MI-to-string function
for composing an FSM name, which needs the BCD part of gsm48_mi_to_string() but
not the TMSI part.
Change-Id: I86b09d37ceef33331c1a56046a5443127d6c6be0
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We already have osmo_str2lower() and osmo_str2upper(), but these lack:
* proper destination buffer bounds checking,
* ability to call directly as printf() argument.
Deprecate osmo_str2upper() and osmo_str2lower() because of missing bounds
checking.
Introduce osmo_str_tolower_buf(), osmo_str_toupper_buf() to provide
bounds-safe conversion, also able to safely convert a buffer in-place.
Introduce osmo_str_tolower(), osmo_str_toupper() that call the above _buf()
equivalents using a static buffer[128] and returning the resulting string
directly, convenient for direct printing. Possibly truncated but always safe.
Add unit tests to utils_test.c.
Replace all libosmocore uses of now deprecated osmo_str2lower().
Naming: the ctype.h API is called tolower() and toupper(), so just prepend
'osmo_str_' and don't separate 'to_lower'.
Change-Id: Ib0ee1206b9f31d7ba25c31f8008119ac55440797
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Having all inculdes listed in one place is a common good
practice, which prevents one from adding duplicates.
Change-Id: I3f52189d5e8f9afafc39525e95385a085f8f850a
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Change-Id: I0979ddda91c4c0aa080b714cf2a698d7634f5091
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The intention was to use the file's basename, but __BASE_FILE__ means "the root
file that is being parsed and contains #include statements".
If we had a function using __BASE_FILE__ and that was defined in an #included
file, __BASE_FILE__ would indicate the first file where the #include is, and
not the file where the function is defined. __BASE_FILE__ works for us because
we don't ever include function definitions that log something, so __BASE_FILE__
always coincides with __FILE__ for our logging; but still __BASE_FILE__ is
semantically the wrong constant.
Related: OS#2740
Change-Id: Ibc1d3746f1876ac42d6b1faf0e5f83bd2283cdcc
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A loooong time ago, we introduced osmo_panic() as a wrapper around
abort(). The advantage is, that this wrapper can be overridden, and
that it will also work in embedded (bare iron) targets, where the
abort simply translates to an infinite loop.
Change-Id: I5a70eb65952cbc329bf96eacb428b07a9da32433
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Change-Id: I2b96db6e037e72e92317fec874877e473a1cf909
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Rationale: with osmo_escape_str(), you get the escaped contents of the string,
but not so graceful handling of NULL strings. The caller needs to quote it, and
for NULL strings not quote it.
osmo_quote_str() is like osmo_escape_str() but always quotes a non-NULL string,
and for a NULL string returns a literal NULL, i.e. it should (tm) give the
exact C representation of a string.
That's useful in testing, to show exactly what char* situation we have, without
jumping through hoops like
if (str)
printf("\"%s\"", osmo_escape_str(str, -1));
else
printf("NULL");
Copy the unit test for osmo_escape_str() and adjust. To indicate that the
double quotes are returned by osmo_quote_str(), use single quotes in the test
printf()s.
I considered allowing to pick the quoting characters by further arguments, but
that complicates things: we'd need to escape the quoting characters. Just
hardcode double quotes like C.
Change-Id: I6f1b3709b32c23fc52f70ad9ecc9439c62b02a12
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Add wrapper for osmo_strlcpy() which uses sizeof() to automatically
determine buffer's size and use it for GSMTAP logging. This is pretty
common use case for osmo_strlcpy() so it's a good idea to save some
typing by using generic define.
Related: OS#2864
Change-Id: I03d0d3d32a8d572ad573d03c603e14cdc27a3f7b
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To report invalid characters in identifiers, it is desirable to escape any
weird characters. Otherwise we might print stray newlines or control characters
in the log output.
ctrl_test.c already uses a print_escaped() function, which will be replaced by
osmo_escape_str() in a subsequent patch.
control_cmd.c will use osmo_escape_str() to log invalid identifiers.
Change-Id: Ic685eb63dead3967d01aaa4f1e9899e5461ca49a
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For validating CTRL input, we want to verify that an input variable is a series
of valid osmo_identifier_valid() separated by dots. Allow validating any
additional chars with identifiers, for CTRL vars will be just ".".
Change-Id: I13dfd02c8c870620f937d789873ad84c6b1c45de
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Change-Id: I73ac5873ede858da44e1486d8a5c81da1ed5b19f
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Change-Id: I7b057c026f9df90608b7cbd12481ab9e7a41d88c
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We define the notion of an 'osmocom identifier' which is basically a
7-bit US-ASCII without any special characters beyond "-_:@". We
introduce a function to verify if an identifier consists only of the
permitted characters.
Change-Id: I96a8d345c5a69238a12d040f39b70c485a5c421c
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Add macro to append to a CTRL commands' reply string, ctrl_cmd_reply_printf().
The talloc_asprintf() part of it is generic enough to qualify for a separate
macro, osmo_talloc_asprintf().
The idea is to not have to decide for each bit added to a string whether the
string is already allocated or not, but simply be able to issue printf commands
and let the macro worry about initial allocation or reallocation.
This originally came from osmo-hlr change
I1bd62ae0d4eefde7e1517db15a2155640a1bab58, where it was requested to move this
bit to libosmocore.
Change-Id: Ic9dba0e4a1eb5a7dc3cee2f181b9024ed4fc7005
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Will be used by OsmoHLR to validate VTY and CTRL input.
Change-Id: Idf75946eb0a84e145adad13fc7c78bb7a267aa0a
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Considering the various styles and implications found in the sources, edit
scores of files to follow the same API doc guidelines around the doxygen
grouping and the \file tag.
Many files now show a short description in the generated API doc that was so
far only available as C comment.
The guidelines and reasoning behind it is documented at
https://osmocom.org/projects/cellular-infrastructure/wiki/Guidelines_for_API_documentation
In some instances, remove file comments and add to the corresponding group
instead, to be shared among several files (e.g. bitvec).
Change-Id: Ifa70e77e90462b5eb2b0457c70fd25275910c72b
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Especially for short descriptions, it is annoying to have to type \brief for
every single API doc.
Drop all \brief and enable the AUTOBRIEF feature of doxygen, which always takes
the first sentence of an API doc as the brief description.
Change-Id: I11a8a821b065a128108641a2a63fb5a2b1916e87
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It's universally useful so it make sense to have it in the shared core:
* move macro from libosmocoding to libosmocore
* add OSMO_ prefix
* add doxygen docs
Change-Id: I5386ba3e1f1cc153ba96c29dc71c9075a052aa02
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To be able to use OSMO_VALUE_STRING() on a #defined constant, don't use
OSMO_STRINGIFY(): the second indirection resolves the #define to its value, so
for example
OSMO_VALUE_STRING(GSM48_PDISC_MM)
would resolve to
{ 0x05, "0x05" }
When using '#x' directly, this becomes the desired
{ 0x05, "GSM48_PDISC_MM" }
With enum values as we've used until now, this problem does not appear, because
enum values are not resolved by the preprocessor.
Keep OSMO_STRINGIFY() because it is used directly in openbsc (composing FSM
state names).
Change-Id: I91ecfcef61be8cf73d59ea821cc4fd9d2ad5c9c7
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Change-Id: I911c7f4bcadde414ce0b384e13a3a9a4a953e2fb
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OSMO_STRINGIFY particularly allows putting port numbers from a #define into VTY
doc strings, like:
#define FOO_PORT 2342
DEFUN(...,
"Foo UDP port (default: " OSMO_STRINGIFY(FOO_PORT) ")\n")
OSMO_VALUE_STRING creates value_string items with the string being exactly the
enum value's name. Replaces a similar macro def in fsm.c
Change-Id: I857af45ae602bb9a647ba26cf8b0d1b23403b54c
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I'm aware of the existing criticism on stlrcpy(), but I think it is
still better than what we have now: stnrcpy(), sometimes with Coverity
warnings and sometimes with a manual setting of the termination byte.
The implementation follows the linux kernel strlcpy() which is claimed
to be BSD compatible.
We could of course link against libbsd on Linux instead, but I think
it's reasonably small and simple to provide our own implementation.
Future versions of libosmocore could use some autoconf magic and
preprocessor macros to use the system-provided strlcpy() if it exists.
Change-Id: Ifdc99b0e3b8631f1e771e58acaf9efb00a9cd493
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This allows us to pass in strings that are 'const', which for the
source of a copy should be the normal/regular case anyway.
Change-Id: Icee6a5f88babd3a4e30bf0886f0f8d3b865d80ce
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Add get_value_string_or_null() to return NULL in case the given value is not
found in the list of strings, to be able to cleanly fall back to another list
of strings. Absorb the lookup loop from get_value_string().
Context: in osmo-bts, I want to look up an RSL message name in rsl_msgt_names
and fall back to rsl_ipac_msgt_names if not found, because the IPAC PDCH ACT
and DEACT messages are sent in a standard ABIS_RSL_MDISC_DED_CHAN.
In a subsequent commit, get_value_string_or_null() will be used by new
rsl_or_ipac_msg_name().
Change-Id: I1fa3907e28d528d2758bc3eae9d19e6c1168f5e5
Reviewed-on: https://gerrit.osmocom.org/230
Reviewed-by: Harald Welte <laforge@gnumonks.org>
Tested-by: Jenkins Builder
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Apparently __FILE__ expands to nasty '../../..' paths when BUILDDIR !=
SRCDIR. This in turn leads to ugly log lines like:
<0000> ../../../../osmo-bts/src/common/rsl.c:1642 (bts=0,trx=0,ts=0,ss=0) Handing RLL msg UNIT_DATA_IND from LAPDm to MEAS REP
Where we certainly wouldn't want the "../../../../osmo-bts" part.
Change-Id: If6d2de33c3b6bb2943954bbd81eff261dc279d58
Reviewed-on: https://gerrit.osmocom.org/38
Tested-by: Jenkins Builder
Reviewed-by: Harald Welte <laforge@gnumonks.org>
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This adds and improves doxygen API descriptions all over libosmocore,
reducing the 'white spots' that don't have any documentation.
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In OSX the int declares linkage and for libosmo-abis we have
two static asserts with the same name in two different compilation
units. When adding the "unused" attribute I removed the typedef.
I verified with a gcc 4.9.2 that no new warnings will be shown
when compiling libosmo-abis.
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... and rather introduce a general osmo_talloc_replace_string() to
libosmocore.
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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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this causes compiler warnings in user code ever since commit
55cf02221f0654a3f48888f3b13766b671a120f0
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The modified macro is still working on a gcc 4.7 and gcc 4.8 after the
removal of the typedef and addition of the unused attribute.
include/osmocom/core/msgb.h: In function ‘msgb_alloc_headroom’:
include/osmocom/core/utils.h:40:51: warning: typedef ‘dummyheadroom_bigger’ locally defined but not used [-Wunused-local-typedefs]
#define osmo_static_assert(exp, name) typedef int dummy##name [(exp) ? 1 : -1];
^
include/osmocom/core/msgb.h:386:2: note: in expansion of macro ‘osmo_static_assert’
osmo_static_assert(size > headroom, headroom_bigger);
^
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This is changing the semantic of the assert. The regression tests
now either need to check the stderr result, the exit status or print
a message when all tests are completed.
This is not that bad as the osmo_generate_backtrace is printing to
the stdout right now.
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The tests should unconditionally assert, regardless of debug settings.
This uses the OSMO_ prefix as it's in the global namespace.
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Add parentheses around the OSMO_MAX and OSMO_MIN macro to match
the behaviour of calling a function. The current version does not
evaluate to what is expected. (OSMO_MAX(3, 2) + 13) currently
results in 3 and not 16.
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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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As it turns out, if a project uses the old name but without a declaration,
it'll causes a segfault on 64 bits platform (because of the implicit
int return type which doesn't apply since here it's a pointer).
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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Hopefully no project where using them it seems
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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Summary of changes:
s/bcd2char/osmo_bcd2char/g
s/char2bcd/osmo_char2bcd/g
s/hexparse/osmo_hexparse/g
s/hexdump/osmo_hexdump/g
s/hexdump_nospc/osmo_hexdump_nospc/g
s/ubit_dump/osmo_ubit_dump/g
s/static_assert/osmo_static_assert/g
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This is used by the logging to vty conversion functions by now, but it
may be of help for other functions that plan to use snprintf().
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This patch moves all GSM-specific definitions to include/osmocom/gsm.
Moreover, the headers in include/osmocore/ have been moved to
include/osmocom/core.
This has been proposed by Harald Welte and Sylvain Munaunt.
Tested with `make distcheck'.
Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
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