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200 Commits

Author SHA1 Message Date
Daniel Willmann 4267a29ee0 hnbgw: Handle closed connections correctly 
We still need to clean up the HNB data structures after the connection
is closed
 2015-12-17 13:09:18 +01:00
Daniel Willmann 7c27f7b792 hnbgw: Lower level of SCTP notif. msg to debug and set default log level to info 2015-12-17 13:08:32 +01:00
Harald Welte ace1d24d34 ranap_common: Add function to wrap IEs into a RANAP_ProtocolIE_FieldPair_t 
The FieldPair is a strange construct of RANAP Radio Access Bearer
assignment, where certain IEs appear in pairs.
 2015-12-16 23:07:19 +01:00
Harald Welte 462db35426 hnbap_common: Fix copy+paste mistake (use hnbap msgb allocator) 2015-12-16 23:06:59 +01:00
Harald Welte d328c1a3ac WIP: add some early code for generating required RANAP messages 2015-12-16 23:04:21 +01:00
Harald Welte c16117a22c Add ranap_generate_outcome() function 
Ranap has not only successsful and unsuccessful outcome, but also
an unqualified general 'outcome'.
 2015-12-16 20:30:11 +01:00
Harald Welte 8dacb07baf {hnbap,rua,ranap}_common.c: Reduce code duplicatioon 
There used to be a lot of code duplication between the code to generate
initiating, successfulOutcome and unsuccessfulOutcome messages.  Try to
reduce that by callign a generic function.
 2015-12-16 20:27:14 +01:00
Harald Welte cbaaeefe00 {rua,hnbap,ranap}_common: Add missing encoding functions 
We used to only have those generator functions that we needed for
the existing hnbgw code; Implement the missing encoders
 2015-12-16 20:17:26 +01:00
Harald Welte 08d5da6647 hnbgw: Use the now-compiling RANAP encoder+decoder code 
So far, we copy-pasted/cherry-picked individual encoder/decoder
functions as the overall ranap_{encode,decode} didn't compile yet.

As the latter is now finally compiling, we can remove those copies and
link in ranap_{encode,decode}.o
 2015-12-16 17:31:43 +01:00
Harald Welte 49695572ba One further RANAP hacking session 
This is not development, it is random trial and error hacking.  I really
hate the fact that we have no useful asn.1 code generator and need to
work with hacks like asn1tostruct.py and asn1c without information
object classes :/

This commit is a one-day-long iteration of trial+error, manually editing
and adding the .asn source of RANAP until we get something that in the
end at least compiles and links.  Do I trust the resulting code? No.
But we have no alternative :(
 2015-12-16 17:26:05 +01:00
Harald Welte 1989913ba2 RANAP: Add more types/IEs to RANAP-PDU.asn and re-generate C 
As asn1c cannot understand information object classes, we cannot compile
RANAP-PDU-Contents.asn but instead need to manually add the respective
infrmation elements to RANAP-PDU.asn.
 2015-12-16 13:15:02 +01:00
Harald Welte fd5db064cb Re-add the 'regen' targets lost in the automake transition 
This might need a lot of cleanup for out-of-source-tree builds and the
like, but let's not spend time on this now.  The old Makefile also
didn't support that.  But loosing the ability to regenerate the C source
is not an option either.
 2015-12-16 13:14:10 +01:00
Harald Welte 3297dbaaa7 rename ASN_MODULE_FILES to ASN_MODULE_SOURCES 
... brings us closer to the Makefile.am.sampl generated by asn1c,
facilitating copy+paste.
 2015-12-16 13:13:30 +01:00
Daniel Willmann 29b9e00355 Autotoolize the build 
Use Autoconf/make for building and autotest for tests
 2015-12-15 15:10:31 +01:00
Daniel Willmann a7b02405be hnb-test: Parse UE register accept 2015-12-14 10:37:26 +01:00
Daniel Willmann 9224731379 asn1helpers: Fix 24 bit conversion function and use it in hnbgw_hnbap 
The 32 bit int needs to be shifted left one byte so the correct bytes
end up at the beginning of the bit string buffer.
 2015-12-14 10:36:36 +01:00
Daniel Willmann 4e31250367 hnb-test: Send UE register request 2015-12-14 10:36:36 +01:00
Daniel Willmann 479cb300ce hnb-test: Send HNB register request and parse the accept 2015-12-14 10:36:36 +01:00
Daniel Willmann 4abdee0803 hnb-test: setsockopt SCTP_EVENTS is needed to get the sctp_sndrcvinfo 2015-12-14 10:36:36 +01:00
Daniel Willmann d6a45b402c asn1helpers: Add 28 bit conversion function and use it for Cell ID 
The padding bits in the bit string are at the end and the byte-order is
MSB-first. This means the number needs to be shifted left so the padding
bits are the least significant.
 2015-12-14 10:21:51 +01:00
Daniel Willmann a1e202e15e tests/hnb-test: Generate the HNBAP registration request from ASN.1 2015-12-07 17:21:07 +01:00
Daniel Willmann 0e8ef67b7a hnbap_common: Add function to HNBAP generate initiating message 
An earlier version was commented out, this function now works like
hnbap_generate_successful_outcome()
 2015-12-07 17:19:40 +01:00
Daniel Willmann f3685c2a13 asn1helpers: Add helper to convert u8/u16 to OCTET_STRING 2015-12-07 17:18:56 +01:00
Daniel Willmann 4aeef6c3c4 hnb-test: Send hard-coded HNB register request for now 2015-12-03 17:02:13 +01:00
Daniel Willmann 97374c039b tests: Add hnb-test to connect to hnbgw and tests its functions 
Only connects currently
 2015-12-03 09:37:58 +01:00
Daniel Willmann 56f6273430 hnbgw: Add VTY commands to show info about connected HNBs and UEs 2015-12-02 12:58:42 +01:00
Daniel Willmann 9a12a4b992 test-helpers: Also print out hexdump of encoded bit string 2015-11-30 16:27:11 +01:00
Daniel Willmann b2548fb1e8 asn1helpers, test-helpers: Use ntoh/hton* to convert integers 
Since the asn1_u32/24_to_bitstring functions need to change the source
variable change the signature to clarify that the uint32_t * will be
modified.
 2015-11-30 16:24:57 +01:00
Daniel Willmann e2956431e8 test-hnbap: Check CID and Identity Info as well 2015-11-30 16:05:51 +01:00
Daniel Willmann 23c86e38bc test-hnbap: Use different types for UE request and accept IEs 2015-11-30 16:03:36 +01:00
Daniel Willmann e3adf0edc3 asn1helpers: Fix asn1str_to_uX functions 
The values are stored big-endian so convert them
 2015-11-27 17:53:19 +01:00
Daniel Willmann ea4c088e78 test-hnbap: Test decoding of the hnbap registration request 
The 16-bit values are not decoded correctly
 2015-11-27 16:14:09 +01:00
Daniel Willmann 1a86955288 tests/test-hnbap: Decode HNBAP UE Register accept as well 2015-11-24 18:11:03 +01:00
Daniel Willmann 39e643a62d tests: Add test-hnbap to test en-/decoding of HNBAP messages 
Decode a HNBAP UE register request and check the result.
 2015-11-24 18:03:29 +01:00
Daniel Willmann 8ea918d772 tests: Test cropping of string still is NULL-terminated 2015-11-23 15:59:02 +01:00
Daniel Willmann 53018e937c asn1helpers: Ensure that string is NULL-terminated 
The buf in an OCTET_STRING_t is not (necessarily) NULL-terminated, so
make sure there is a terminating NULL byte at the end in the resulting
string.
 2015-11-23 15:55:46 +01:00
Daniel Willmann ec0e50e148 tests: Test asn1_strncpy function 2015-11-23 15:48:59 +01:00
Daniel Willmann 6e59d413a2 asn1helpers.c: Fix asn1bitstr_to_u32 function 
The value in buf is kept in host byte order so no need to swap it
around.
 2015-11-23 14:03:04 +01:00
Daniel Willmann 54a9a143f0 tests: Test asn1_u32_to_bitstring and asn1bitstr_to_u32 2015-11-23 14:02:38 +01:00
Daniel Willmann cc5f7cafa2 src/Makefile: Change order of dependencies so a clean checkout builds 
There still seem to be some issues with the _decode.o dependencies, but
this will eventually build through.
 2015-11-20 19:52:00 +01:00
Harald Welte 0bb1261239 add asn1_u24_to_bitstring() 
Sometimes we have a native uint32_t, but we don't want to encode
it to a 4-byte long ASN1 BITSTRING, but rather to one that is only
24 bits.
 2015-10-06 22:08:54 +02:00
Harald Welte 4dd16b9643 make asn1bitstr_to_u32() work for sub-32bit bit-strings 
IF the ASN1 Bit-string is only 24 bits or even less long,
we might still want to retrieve it as an uint32_t.
 2015-10-06 22:08:10 +02:00
Harald Welte 77847ad020 add copyright statement and AGPLv3 headers to source code files 2015-10-06 22:07:04 +02:00
Harald Welte 6286880caa the Context ID is a 24bit number, we cannot use len = 4 bytes! 2015-09-18 01:23:55 +02:00
Harald Welte 1c2ada0e7f ranap: receive/parse DirectTransfer 2015-09-11 20:10:17 +02:00
Harald Welte 80401adcb0 ranap: Parse InitialUE message and hex-print NAS PDU 2015-09-11 19:48:06 +02:00
Harald Welte 0f0ea8112f RUA: hand off RANAP from all PDU types, not just UnitDataTransfer 
Also, we now offer a ranap_tx_dt() message for connection-oriented
RANAP transfers.  A far as I understand the RUA spec, on RUA layer,
all operations are Class 2, i.e. without any response/confirmation.
 2015-09-11 18:58:28 +02:00
Harald Welte cc27bebd30 ranap: prepare decoding of InitialUE message 2015-09-11 18:45:39 +02:00
Harald Welte 1d2c39d83b various cleanups (compiler warnings, coding style) 2015-09-11 17:49:37 +02:00
Harald Welte 35cbc11757 add unit test for BCD encoding/decoding 2015-09-11 17:36:59 +02:00
Harald Welte 208b7b0778 iu_helpers: fix encoding of BCD (like IMSI) into OCTET STING 2015-09-11 17:35:52 +02:00
Harald Welte 393f2bd9fb move BCD string encoding/decoding functions to iu_helpers.[ch] 2015-09-11 17:13:51 +02:00
Harald Welte 3af1db87ed hnbap: Print error messages in error cases 2015-09-11 17:03:16 +02:00
Harald Welte 10dfc5a97d respond to HNBAP UE REGISTER REQ withe correspnding ACCEPT 
The Accept incudes the IMSI that the phone presented, but
somehow we fail to encode the Context ID as bitstring,  see
../pcap/20150911-hnbap-ue_register.pcap
 2015-09-11 01:36:44 +02:00
Harald Welte 256c67ad81 ue context: fix linked list insert 2015-09-11 01:22:29 +02:00
Harald Welte b534e5c085 introduce ue_context management 
We keep one 'ue_context' structure for every UE that we see
a UE REGISTER REQUEST for.
 2015-09-11 00:15:54 +02:00
Harald Welte e2e5d4dd53 Back RUA/RANAP integration until RANAP Reset works for cs+ps 
The hNodeB is now actively transmitting and we are getting up to the
HNBAP UE-REGISTER.req with the IMSI of the MS.
 2015-09-10 23:49:45 +02:00
Harald Welte 350814a5cb first dispatch of RUA into RANAP 
This is becoming more and more of a hack, as asn1c + asn1tostruct.py
don't really deal well with the RANAP syntax :(
 2015-09-10 22:32:15 +02:00
Harald Welte ac9c024432 ranap: Add more manual definitions to RANAP-PDUs 
It seems that individual IEs contain nested containers, and
asn1c is not generating code for that unless we help it by some
hand-crafted additional definitions. *sigh*
 2015-09-10 21:18:16 +02:00
Harald Welte 68fcff219f don't attempt to regenerate ranap-common, it is not auto generated! 2015-09-10 19:35:09 +02:00
Harald Welte 64b4ebe57c rua: dispatch different message types and print context/cause 2015-09-10 19:29:59 +02:00
Harald Welte 318e4d5713 actually dispatch RUA messages to RUA handling code 2015-09-10 18:47:08 +02:00
Harald Welte 656ad301a8 enable building + linking of RUA support 2015-09-10 18:33:47 +02:00
Harald Welte 3bc7ff0bb5 hnbap Makefile: add asn1c include directory 2015-09-10 16:43:44 +02:00
Harald Welte 71733fe9b3 add AGPLv3 license text 2015-09-10 11:02:31 +02:00
Harald Welte 0ec7f13667 Cleanups (rename 'asn1c' to 'hnbap', Makefile sanitizing) 2015-09-10 10:53:37 +02:00
Harald Welte b90c37dbaf build + link to RUA and RANAP libraries 2015-09-10 10:53:36 +02:00
Harald Welte ee0918971f add asn1c generated C source for RANAP (and Makefile to regenerate) 2015-09-10 10:53:36 +02:00
Harald Welte 019830c460 add asn1c generated RUA c+header files 2015-09-10 10:53:36 +02:00
Harald Welte 3ca78c8607 add Makefile.local to generate prefixed RUA code 2015-09-10 10:53:36 +02:00
Harald Welte f2f3000457 msgb_free() all received messages after handling 2015-09-08 00:09:23 +02:00
Harald Welte 17878e267f avoid parsing SCTP noficiations as user data 2015-09-08 00:09:13 +02:00
Harald Welte 7b54e32c63 hnbap: Don't enqueue a NULL msgb for transmit 2015-09-07 22:41:45 +02:00
Harald Welte 9e270b4834 hnbgw.c: Fix double-free in wait-queue transmit code 2015-09-07 22:41:26 +02:00
Harald Welte 1c1c53ca11 hnbap encode: don't pass 0 as available buffer space 2015-09-07 22:41:02 +02:00
Harald Welte c060b7bf2c more error logging in hnbap TX successful outcome 2015-09-07 22:40:41 +02:00
Harald Welte cfcc1e67ad use htonl(ppid) when sending a SCTP message 2015-09-07 22:39:56 +02:00
Harald Welte 3f71256750 Use implement HNBAP transmit using per-hnb write_queue 2015-09-07 22:25:35 +02:00
Harald Welte 2204f9d43d hnbgw: zero-initialize the output struct before aper_decode() 
asn1c has this strange behavior that the _output_ struct must be
zero-initialized.
 2015-09-07 22:25:35 +02:00
Harald Welte 5c11c94637 hnbgw: Fix SCTP server/receiver 
* we need to swap PPID endianness
* we need to explicitly subscrie to the event(s) for sctp_sndrcvinfo
 2015-09-07 22:25:35 +02:00
Harald Welte 08a793be9f hnbgw: Initialize linked list header of hnbgw's 2015-09-07 22:25:35 +02:00
Harald Welte 1c0f538a8b hnbgw: Bind to INADDR_ANY, not to localhost only 2015-09-07 22:25:35 +02:00
Harald Welte 385836171b update .gitignore 2015-08-31 09:58:12 +02:00
Harald Welte ff4750fde8 cosmetics: asn1c now no longer explicitly states -fnative-types 2015-08-31 09:55:28 +02:00
Harald Welte 08de638790 start using the shared libasn1c, now that it has aper support 2015-08-31 09:54:45 +02:00
Harald Welte 9da9697f55 makefile: asn1tostruct.py rules for RUA and RANAP 2015-08-31 09:38:13 +02:00
Harald Welte 0bdea4da55 Makefile: chrdir to asn1c subdir and build library there 2015-08-30 23:13:06 +02:00
Harald Welte d523a69dbe import ans1c generated C sources for HNBAP 
TODO: split the HNBAP specific code from the core runtime code
and use libosmo-asn1c instead.  This is required as we will be
dealing with multiple ASN.1 data formats from within a single
executable.
 2015-08-30 23:11:19 +02:00
Harald Welte 11e0306a3a add .gitignore for src directory 2015-08-30 23:10:13 +02:00
Harald Welte 76427b753b implement HNBAP_DEBUG via osmocore DEBUGP 2015-08-30 23:08:48 +02:00
Harald Welte 339b8e2a77 successful has only one 'l' (copy+paste error) 2015-08-30 23:08:32 +02:00
Harald Welte 4d42551466 actually build + link the asn1c generated HNBAP ASN.1 2015-08-30 23:04:23 +02:00
Harald Welte 27f9c4ab4b migration of code from ffasn1c to asn1c + asn1tostruct.py 2015-08-30 22:48:59 +02:00
Harald Welte 2facbada27 remove ffasn1c generated hnbap.[ch] from source 
we want to use asn1c instead.
 2015-08-30 19:03:37 +02:00
Harald Welte ee77cff224 hnbgw: Actually link in + call ffasn1c runtime library 2015-08-30 16:57:53 +02:00
Harald Welte c3fa0b0e43 add iu_common.h using C structs to describe PER encoded Iu headers 2015-08-30 16:55:43 +02:00
Harald Welte 30afef3073 move asn.1 helper functions to asn1helpers.[ch] 2015-08-30 12:28:29 +02:00
Harald Welte b3dae30e5e first compiling code (untested) 2015-08-30 12:20:09 +02:00
Harald Welte a2e6a7a05e further tiny steps of progress on the hnb-gw infrastructure 2015-08-29 21:47:39 +02:00
Harald Welte ba43de4bf6 very early intial code snippets for handling HNBAP in a HNB-GW 2015-08-29 20:33:16 +02:00