diff options
Diffstat (limited to 'openbsc/src/gprs_ns.c')
| -rw-r--r-- | openbsc/src/gprs_ns.c | 47 |
1 files changed, 22 insertions, 25 deletions
diff --git a/openbsc/src/gprs_ns.c b/openbsc/src/gprs_ns.c index 6c495b01e..3bb0bf94d 100644 --- a/openbsc/src/gprs_ns.c +++ b/openbsc/src/gprs_ns.c @@ -72,30 +72,6 @@ static const struct tlv_definition ns_att_tlvdef = { }, }; -#define NSE_S_BLOCKED 0x0001 -#define NSE_S_ALIVE 0x0002 - -struct gprs_nsvc { - struct llist_head list; - struct gprs_ns_inst *nsi; - - u_int16_t nsei; /* end-to-end significance */ - u_int16_t nsvci; /* uniquely identifies NS-VC at SGSN */ - - u_int32_t state; - u_int32_t remote_state; - - struct timer_list alive_timer; - int timer_is_tns_alive; - int alive_retries; - - union { - struct { - struct sockaddr_in bts_addr; - } ip; - }; -}; - enum gprs_ns_ll { GPRS_NS_LL_UDP, GPRS_NS_LL_E1, @@ -474,7 +450,7 @@ struct gprs_ns_inst *gprs_ns_instantiate(gprs_ns_cb_t *cb) nsi->cb = cb; INIT_LLIST_HEAD(&nsi->gprs_nsvcs); - return NULL; + return nsi; } void gprs_ns_destroy(struct gprs_ns_inst *nsi) @@ -586,3 +562,24 @@ int nsip_listen(struct gprs_ns_inst *nsi, uint16_t udp_port) return ret; } + +/* Establish a connection (from the BSS) to the SGSN */ +struct gprs_nsvc *nsip_connect(struct gprs_ns_inst *nsi, + struct sockaddr_in *dest, uint16_t nsvci) +{ + struct gprs_nsvc *nsvc; + + nsvc = nsvc_by_rem_addr(nsi, dest); + if (!nsvc) { + nsvc = nsvc_create(nsi, nsvci); + nsvc->ip.bts_addr = *dest; + } + nsvc->remote_end_is_sgsn = 1; + + /* Initiate a RESET procedure */ + if (gprs_ns_tx_simple(nsvc, NS_PDUT_RESET) < 0) + return NULL; + /* FIXME: should we run a timer and re-transmit the reset request? */ + + return nsvc; +} |