5f4ef321a6
To modify or route messages based on the IMSI the latter must be known when the action shall take place. This patch modifies the gbproxy to optionally retain and enqueue messages from the MS while initiating an identification procedure. Further message processing of the LLC PTP link towards the SGSN will be done, when the identity of the MS has been acquired. Note that the N(U) of the LLC GMM SAPI are not adjusted, so it is possible that adjacent messages of a single LLC link arriving either at the BSS or the SGSN have the same N(U) and might get discarded, leading to retransmissions and additional delay. Note also that retransmissions and packet loss are not yet handled explicitely. If for instance the generated IDENT REQ gets lost, the gbproxy will not act on its own. In this case, the MS will time out and eventually resend the Attach Request on which the gbproxy will act exactly like before (thus having two Attach Req messages in its queue, which will both be sent after the Ident Resp arrives). This has been tested successfully with an E71, needing one retransmission by the SGSN due to an N(U) collision. Ticket: OW#1261 Sponsored-by: On-Waves ehf |
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| .. | ||
| abis | ||
| bsc | ||
| bsc-nat | ||
| bsc-nat-trie | ||
| channel | ||
| db | ||
| gbproxy | ||
| gprs | ||
| gsm0408 | ||
| mgcp | ||
| smpp | ||
| trau | ||
| Makefile.am | ||
| atlocal.in | ||
| ctrl_test_runner.py | ||
| smpp_test_runner.py | ||
| testsuite.at | ||
| vty_test_runner.py | ||