It seems that this is not a problem with the asn1c library. There is a bug in ogs_calloc()/ogs_free().
I've changed memory alloc()/free() as below. https://github.com/open5gs/nextepc/commit/dba1fcac5c29509a9e662a9fedc37a674a...
And then, the source code is modified like the following. diff --git a/lib/asn1c/common/asn_internal.h b/lib/asn1c/common/asn_internal.h index 77e005f7..d561043b 100644 --- a/lib/asn1c/common/asn_internal.h +++ b/lib/asn1c/common/asn_internal.h @@ -23,7 +23,7 @@ extern "C" { #define ASN1C_ENVIRONMENT_VERSION 923 /* Compile-time version */ int get_asn1c_environment_version(void); /* Run-time version */
-#if 0 /* modified by acetcom */ +#if 1 /* modified by acetcom */ #define CALLOC(nmemb, size) calloc(nmemb, size) #define MALLOC(size) malloc(size) #define REALLOC(oldptr, size) realloc(oldptr, size)
So, s1ap encoder/decoder is executed with system's calloc()/free().
And then, run the following command. $ ./test/testcsfb crash-test
The above test is not crashed. Of course, if ogs_calloc()/ogs_free() is used, the above test command is crashed.
So, I need to analyze what the bug of ogs-memory.c raise this crash.
Thanks!
On Mon, Jul 22, 2019 at 12:02 AM Sukchan Lee acetcom@gmail.com wrote:
Hi Harald,
Of course, I will. But before that I should check the other asn1c upstream version. And I need to reproduce test code for asn1c hacker to analyze this problem easily.
And then, I will post this issue.
Thanks a lot!
Best Regards Sukchan
- 오후 11:41, Harald Welte laforge@gnumonks.org 작성:
Hi Sukchan,
On Sun, Jul 21, 2019 at 10:59:44PM +0900, Sukchan Lee wrote: The bad news seems to be a problem with the asn1c library. More than 9 protocol IE cannot be built from InitialContextSetupRequest.
I suggest to report this upstream to the asn1c hackers and ask for theri
help.
It may also work using one of the other versions/branches of asn1c for
comparison.
--
- Harald Welte laforge@gnumonks.org
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