diff options
| author | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2014-08-27 12:51:07 +0200 |
|---|---|---|
| committer | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2014-09-08 09:27:36 +0200 |
| commit | cabd24b33f51a109242c2a9188f7405ff8de64bc (patch) | |
| tree | c26e89f47a124dc1524ac490f60bdd0b4fcab545 /openbsc/src | |
| parent | f181f9ec2a1ad61ca040e0224835a08878bda795 (diff) | |
gbproxy: Use secondary SGSN if IMSI matches
This patch modifies gbprox_process_bssgp_ul() to send the message to
the secondary SGSN if the IMSI has matched and routing to the
secondary SGSN is enabled. The destination for stored messages is
modified accordingly.
Ticket: OW#1261
Sponsored-by: On-Waves ehf
Diffstat (limited to 'openbsc/src')
| -rw-r--r-- | openbsc/src/gprs/gb_proxy.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/openbsc/src/gprs/gb_proxy.c b/openbsc/src/gprs/gb_proxy.c index 539e3aef9..6e93e1493 100644 --- a/openbsc/src/gprs/gb_proxy.c +++ b/openbsc/src/gprs/gb_proxy.c @@ -263,6 +263,8 @@ static int gbprox_process_bssgp_ul(struct gbproxy_config *cfg, int len_change = 0; time_t now; struct gbproxy_tlli_info *tlli_info = NULL; + uint32_t sgsn_nsei = cfg->nsip_sgsn_nsei; + int send_msg_directly = 0; if (!cfg->core_mcc && !cfg->core_mnc && !cfg->core_apn && !cfg->acquire_imsi) @@ -328,6 +330,11 @@ static int gbprox_process_bssgp_ul(struct gbproxy_config *cfg, tlli_info = gbproxy_update_tlli_state_ul(peer, now, &parse_ctx); + if (tlli_info && tlli_info->enable_patching && cfg->route_to_sgsn2) { + sgsn_nsei = cfg->nsip_sgsn2_nsei; + send_msg_directly = 1; + } + if (tlli_info && tlli_info->imsi_acq_pending && parse_ctx.g48_hdr && parse_ctx.g48_hdr->proto_discr == GSM48_PDISC_MM_GPRS && parse_ctx.g48_hdr->msg_type == GSM48_MT_GMM_ID_RESP && @@ -359,7 +366,7 @@ static int gbprox_process_bssgp_ul(struct gbproxy_config *cfg, &tmp_parse_ctx); rc = gbprox_relay2sgsn(cfg, stored_msg, msgb_bvci(msg), - cfg->nsip_sgsn_nsei); + sgsn_nsei); if (rc < 0) LOGP(DLLC, LOGL_ERROR, @@ -425,6 +432,13 @@ static int gbprox_process_bssgp_ul(struct gbproxy_config *cfg, gbproxy_update_tlli_state_after(peer, tlli_info, now, &parse_ctx); + if (send_msg_directly) { + /* Send message directly to the selected SGSN */ + rc = gbprox_relay2sgsn(cfg, msg, msgb_bvci(msg), sgsn_nsei); + /* Don't let the calling code handle the transmission */ + return 0; + } + return 1; } |