gbproxy/test: Add test cases for IMSI acquisition

If the Attach Request procedure gets restarted e.g. because of a lost
message, all of these messages are stored if IMSI acquisition is in
progress.

This patch adds a test for this case and modifies the dump_peers
function to output the number of stored messages.

Note that the number of stored messages currently increases with each
(repeatedly) received Attach Request which is not the desired behaviour.

Sponsored-by: On-Waves ehf

1 files changed, 34 insertions, 3 deletions

diff --git a/openbsc/tests/gbproxy/gbproxy_test.ok b/openbsc/tests/gbproxy/gbproxy_test.ok
index 389c68c91..c307a72ee 100644
--- a/openbsc/tests/gbproxy/gbproxy_test.ok
+++ b/openbsc/tests/gbproxy/gbproxy_test.ok
@@ -2627,7 +2627,7 @@ Peers:
     Attach Request count            : 1
     TLLI cache size                 : 1
     TLLI-Cache: 1
-      TLLI 8000dead -> 7c69fb81, IMSI (none), AGE 0, IMSI acquisition in progress, stored messages
+      TLLI 8000dead -> 7c69fb81, IMSI (none), AGE 0, STORED 1, IMSI acquisition in progress
 PROCESSING IDENT RESPONSE from 0x01020304:1111
 00 00 10 02 01 80 00 de ad 00 00 04 08 88 11 22 33 40 50 60 12 34 00 80 0e 00 11 01 c0 05 08 16 08 11 12 13 14 15 16 17 18 ad 05 28 
 
@@ -3000,6 +3000,37 @@ Peers:
     P-TMSI patched            (SGSN): 1
     Attach Request count            : 1
     TLLI-Cache: 0
+PROCESSING ATTACH REQUEST from 0x01020304:1111
+00 00 10 02 01 80 00 de ad 00 00 04 08 88 00 f1 99 00 63 60 12 34 00 80 0e 00 34 01 c0 15 08 01 02 f5 e0 21 08 02 05 f4 fb c5 46 79 11 22 33 40 50 60 19 18 b3 43 2b 25 96 62 00 60 80 9a c2 c6 62 00 60 80 ba c8 c6 62 00 60 80 00 e6 1c b0 
+
+CALLBACK, event 0, msg length 75, bvci 0x1002
+00 00 10 02 01 80 00 de ad 00 00 04 08 88 00 f1 99 00 63 60 12 34 00 80 0e 00 34 01 c0 15 08 01 02 f5 e0 21 08 02 05 f4 fb c5 46 79 11 22 33 40 50 60 19 18 b3 43 2b 25 96 62 00 60 80 9a c2 c6 62 00 60 80 ba c8 c6 62 00 60 80 00 e6 1c b0 
+
+NS UNITDATA MESSAGE to BSS, BVCI 0x1002, msg length 24 (gprs_ns_sendmsg)
+MESSAGE to BSS at 0x01020304:1111, msg length 28
+00 00 10 02 00 80 00 de ad 00 50 20 16 82 02 58 0e 00 09 41 c0 01 08 15 01 ff 6c ba 
+
+result (ATTACH REQUEST) = 0
+
+PROCESSING ATTACH REQUEST from 0x01020304:1111
+00 00 10 02 01 80 00 de ad 00 00 04 08 88 00 f1 99 00 63 60 12 34 00 80 0e 00 34 01 c0 19 08 01 02 f5 e0 21 08 02 05 f4 fb c5 46 79 11 22 33 40 50 60 19 18 b3 43 2b 25 96 62 00 60 80 9a c2 c6 62 00 60 80 ba c8 c6 62 00 60 80 00 b6 33 df 
+
+CALLBACK, event 0, msg length 75, bvci 0x1002
+00 00 10 02 01 80 00 de ad 00 00 04 08 88 00 f1 99 00 63 60 12 34 00 80 0e 00 34 01 c0 19 08 01 02 f5 e0 21 08 02 05 f4 fb c5 46 79 11 22 33 40 50 60 19 18 b3 43 2b 25 96 62 00 60 80 9a c2 c6 62 00 60 80 ba c8 c6 62 00 60 80 00 b6 33 df 
+
+result (ATTACH REQUEST) = 0
+
+Peers:
+  NSEI 4096, BVCI 4098, not blocked, RAI 112-332-16464-96
+    RAID patched              (BSS ): 8
+    RAID patched              (SGSN): 3
+    TLLI patched              (BSS ): 9
+    TLLI patched              (SGSN): 9
+    P-TMSI patched            (SGSN): 1
+    Attach Request count            : 3
+    TLLI cache size                 : 1
+    TLLI-Cache: 1
+      TLLI 8000dead -> 7eb52dfb, IMSI (none), AGE 0, STORED 2, IMSI acquisition in progress
 Gbproxy global:
     Invalid Routing Area Identifier : 1
     BSSGP protocol error      (SGSN): 1
@@ -3249,7 +3280,7 @@ Peers:
     Attach Request count            : 1
     TLLI cache size                 : 1
     TLLI-Cache: 1
-      TLLI 8000dead -> 7c69fb81, IMSI (none), AGE 0, IMSI acquisition in progress, stored messages
+      TLLI 8000dead -> 7c69fb81, IMSI (none), AGE 0, STORED 1, IMSI acquisition in progress
 PROCESSING IDENT RESPONSE from 0x01020304:1111
 00 00 10 02 01 80 00 de ad 00 00 04 08 88 11 22 33 40 50 60 12 34 00 80 0e 00 11 01 c0 05 08 16 08 11 12 13 14 15 16 17 18 ad 05 28 
 
@@ -3556,7 +3587,7 @@ Peers:
     Attach Request count            : 2
     TLLI cache size                 : 2
     TLLI-Cache: 2
-      TLLI 8000beef -> 7eb52dfb, IMSI (none), AGE 0, IMSI acquisition in progress, stored messages
+      TLLI 8000beef -> 7eb52dfb, IMSI (none), AGE 0, STORED 1, IMSI acquisition in progress
       TLLI c00f7304 -> efe2b700, IMSI 12131415161718, AGE 0
 PROCESSING IDENT RESPONSE from 0x01020304:1111
 00 00 10 02 01 80 00 be ef 00 00 04 08 88 11 22 33 40 50 60 12 34 00 80 0e 00 11 01 c0 15 08 16 08 11 12 99 99 99 16 17 18 b2 dd 58