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[gprs] gb_proxy: Snoop Cell ID from BSSGP RESET

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If a PTP BVC is BVC-RESET by the BSS, the PDU contains the
Cell Identifier.  We can snoop this into our gbprox_peer structure
for better visualization of each peer in they vty.
This commit is contained in:
Harald Welte
2010-05-12 00:07:29 +02:00
parent 615e956328
commit 1174c08068
1 changed files with 22 additions and 5 deletions
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27
openbsc/src/gprs/gb_proxy.c
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@@ -82,7 +82,7 @@ static struct gbprox_peer *peer_by_rac(const uint8_t *ra)
{
struct gbprox_peer *peer;
llist_for_each_entry(peer, &gbprox_bts_peers, list) {
if (!memcmp(&peer->ra, ra, 6))
if (!memcmp(peer->ra, ra, 6))
return peer;
}
return NULL;
@@ -93,7 +93,7 @@ static struct gbprox_peer *peer_by_lac(const uint8_t *la)
{
struct gbprox_peer *peer;
llist_for_each_entry(peer, &gbprox_bts_peers, list) {
if (!memcmp(&peer->ra, la, 5))
if (!memcmp(peer->ra, la, 5))
return peer;
}
return NULL;
@@ -213,8 +213,8 @@ static int gbprox_rx_sig_from_bss(struct msgb *msg, struct gprs_nsvc *nsvc,
from_peer = peer_by_nsvc(nsvc);
if (!from_peer)
goto err_no_peer;
memcpy(&from_peer->ra, TLVP_VAL(&tp, BSSGP_IE_ROUTEING_AREA),
sizeof(&from_peer->ra));
memcpy(from_peer->ra, TLVP_VAL(&tp, BSSGP_IE_ROUTEING_AREA),
sizeof(from_peer->ra));
gsm48_parse_ra(&raid, from_peer->ra);
DEBUGP(DGPRS, "NSEI=%u RAC snooping: RAC %u/%u/%u/%u behind BVCI=%u, "
"NSVCI=%u\n", nsvc->nsei, raid.mcc, raid.mnc, raid.lac,
@@ -235,7 +235,9 @@ static int gbprox_rx_sig_from_bss(struct msgb *msg, struct gprs_nsvc *nsvc,
"BVC RESET ACK of BVCI=0\n", nsvc->nsei);
return bssgp_tx_simple_bvci(BSSGP_PDUT_BVC_RESET_ACK,
nsvc->nsei, 0, ns_bvci);
} else if (!peer_by_bvci(bvci)) {
}
from_peer = peer_by_bvci(bvci);
if (!from_peer) {
/* if a PTP-BVC is reset, and we don't know that
* PTP-BVCI yet, we should allocate a new peer */
LOGP(DGPRS, LOGL_INFO, "Allocationg new peer for "
@@ -244,6 +246,21 @@ static int gbprox_rx_sig_from_bss(struct msgb *msg, struct gprs_nsvc *nsvc,
from_peer = peer_alloc(bvci);
from_peer->nsvc = nsvc;
}
if (TLVP_PRESENT(&tp, BSSGP_IE_CELL_ID)) {
struct gprs_ra_id raid;
/* We have a Cell Identifier present in this
* PDU, this means we can extend our local
* state information about this particular cell
* */
memcpy(from_peer->ra,
TLVP_VAL(&tp, BSSGP_IE_CELL_ID),
sizeof(from_peer->ra));
gsm48_parse_ra(&raid, from_peer->ra);
LOGP(DGPRS, LOGL_INFO, "NSEI=%u/BVCI=%u "
"Cell ID " "%u-%u-%u-%u\n", nsvc->nsei,
bvci, raid.mcc, raid.mnc, raid.lac,
raid.rac);
}
}
break;
}