pespin has submitted this change. ( 
https://gerrit.osmocom.org/c/libosmocore/+/27531 )

Change subject: gsm0808_test: Add new unit test showing dec error
......................................................................

gsm0808_test: Add new unit test showing dec error

This unit tests shows how decoding of such message fails. Fix will be
provided in a follow up patch to make the test pass.

Related: SYS#5891
Change-Id: Ib4ff71d5e01d464febb062c5bfe3e06ee5a19ecd
---
M tests/gsm0808/gsm0808_test.c
M tests/gsm0808/gsm0808_test.ok
2 files changed, 55 insertions(+), 0 deletions(-)

Approvals:
  fixeria: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/tests/gsm0808/gsm0808_test.c b/tests/gsm0808/gsm0808_test.c
index b823a15..38c68bf 100644
--- a/tests/gsm0808/gsm0808_test.c
+++ b/tests/gsm0808/gsm0808_test.c
@@ -424,6 +424,59 @@
               osmo_hexdump(diag->msg, diag_len-2));
 }

+/* Test Perform Location Report SYS#5891 */
+static void test_dec_perform_location_report_sys5891()
+{
+/*     Message Type Perform Location Request
+       Location Type
+               Element ID: 0x44
+               Length: 1
+               Location Information: current geographic location (0x00)
+       Cell Identifier/CI (25911)
+               Element ID: 0x05
+               Length: 8
+               0000 .... = Spare bit(s): 0x00
+               .... 0000 = Cell identification discriminator: The whole Cell 
Global Identification, CGI, is used to identify the cells. (0)
+               Mobile Country Code (MCC): (removed))
+               Mobile Network Code (MNC): (removed))
+               Cell LAC: 0x001e (30)
+               Cell CI: 0x6537 (25911)
+       LCS Client Type
+               Element ID: 0x48
+               Length: 1
+               0011 .... = Client Category: Emergency Services (0x03)
+               .... 0000 = Client Subtype: unspecified (0x00)
+       LCS Priority
+               Element ID: 0x43
+               Length: 1
+               Periodicity: highest (0)
+       LCS QoS
+               Element ID: 0x3e
+               Length: 4
+               0000 00.. = Spare: 0x00
+               .... ..0. = Velocity Requested: do not report velocity (0x00)
+               .... ...0 = Vertical Coordinate Indicator: vertical coordinate 
not requested (0x00)
+               1... .... = Horizontal Accuracy Indicator: horizontal accuracy 
is specified (0x01)
+               .001 0010 = Horizontal Accuracy: 0x12
+               0... .... = Vertical Accuracy Indicator: vertical accuracy is 
not specified (0x00)
+               .000 0000 = Spare: 0x00
+               00.. .... = Response Time Category: Response Time is not 
specified (0x00)
+*/
+       const uint8_t hex[] = {
+               0x2b, 0x44, 0x01, 0x00, 0x05, 0x08, 0x00, 0xab, 0xbc, 0xcd, 
0x00, 0x1e,
+               0x65, 0x37, 0x48, 0x01, 0x30, 0x43, 0x01, 0x00, 0x3e, 0x04, 
0x00, 0x92,
+               0x00, 0x00
+       };
+
+       struct tlv_parsed tp;
+       int rc;
+
+       printf("Testing decoding Perform Location Report SYS#5891\n");
+
+       rc = tlv_parse(&tp, gsm0808_att_tlvdef(), hex+1, sizeof(hex)-1, 0, 0);
+       OSMO_ASSERT(rc < 0);
+}
+
 static void test_create_ass()
 {
        static const uint8_t res1[] =
@@ -2525,6 +2578,7 @@
        test_gsm0808_cell_id_to_from_cgi();

        test_dec_confusion();
+       test_dec_perform_location_report_sys5891();

        printf("Done\n");
        return EXIT_SUCCESS;
diff --git a/tests/gsm0808/gsm0808_test.ok b/tests/gsm0808/gsm0808_test.ok
index eaae7a6..8f91eb1 100644
--- a/tests/gsm0808/gsm0808_test.ok
+++ b/tests/gsm0808/gsm0808_test.ok
@@ -916,4 +916,5 @@
   Diagnostics error octet location 0 (Error location not determined)
   Diagnostics error bit location 15 (Reserved value)
   Diagnostics message that provoked the error: 00 03 25 03 25
+Testing decoding Perform Location Report SYS#5891
 Done

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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: Ib4ff71d5e01d464febb062c5bfe3e06ee5a19ecd
Gerrit-Change-Number: 27531
Gerrit-PatchSet: 4
Gerrit-Owner: pespin <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <[email protected]>
Gerrit-Reviewer: pespin <[email protected]>
Gerrit-MessageType: merged

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