diff options
| author | Harald Welte <laforge@gnumonks.org> | 2010-12-24 21:13:26 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2010-12-26 19:20:03 +0100 |
| commit | a9b473a3c25d5b0f0993c3c53f6004b0e86fca5c (patch) | |
| tree | d41b0f0bf4756737e0aa896b50c21f21e1fc7263 /openbsc/include/openbsc | |
| parent | 3357add225140a2e87a9d69150bf19cf578e24f7 (diff) | |
SGSN: Implement network-initiated PDP CTX DEACT when GGSN restarts
If the GGSN restarts, its restart counter will increase. We can
detect that and accordingly release/delete all PDP contexts for
that GGSN.
Diffstat (limited to 'openbsc/include/openbsc')
| -rw-r--r-- | openbsc/include/openbsc/gprs_gmm.h | 1 | ||||
| -rw-r--r-- | openbsc/include/openbsc/gprs_sgsn.h | 14 |
2 files changed, 15 insertions, 0 deletions
diff --git a/openbsc/include/openbsc/gprs_gmm.h b/openbsc/include/openbsc/gprs_gmm.h index b91b489d3..bd129ae4d 100644 --- a/openbsc/include/openbsc/gprs_gmm.h +++ b/openbsc/include/openbsc/gprs_gmm.h @@ -4,6 +4,7 @@ #include <osmocore/msgb.h> #include <openbsc/gprs_sgsn.h> +int gsm48_tx_gsm_deact_pdp_req(struct sgsn_pdp_ctx *pdp, uint8_t sm_cause); int gsm48_tx_gsm_act_pdp_rej(struct sgsn_mm_ctx *mm, uint8_t tid, uint8_t cause, uint8_t pco_len, uint8_t *pco_v); int gsm48_tx_gsm_act_pdp_acc(struct sgsn_pdp_ctx *pdp); diff --git a/openbsc/include/openbsc/gprs_sgsn.h b/openbsc/include/openbsc/gprs_sgsn.h index b32c5cd4c..fb1b2882b 100644 --- a/openbsc/include/openbsc/gprs_sgsn.h +++ b/openbsc/include/openbsc/gprs_sgsn.h @@ -125,6 +125,10 @@ enum pdp_ctx_state { PDP_STATE_NONE, PDP_STATE_CR_REQ, PDP_STATE_CR_CONF, + + /* 04.08 / Figure 6.2 / 6.1.2.2 */ + PDP_STATE_INACT_PEND, + PDP_STATE_INACTIVE = PDP_STATE_NONE, }; enum pdp_type { @@ -162,6 +166,10 @@ struct sgsn_pdp_ctx { uint32_t rx_gtp_snu; //uint32_t charging_id; int reordering_reqd; + + struct timer_list timer; + unsigned int T; /* Txxxx number */ + unsigned int num_T_exp; /* number of consecutive T expirations */ }; @@ -182,10 +190,12 @@ struct sgsn_ggsn_ctx { uint32_t id; unsigned int gtp_version; struct in_addr remote_addr; + int remote_restart_ctr; struct gsn_t *gsn; }; struct sgsn_ggsn_ctx *sgsn_ggsn_ctx_alloc(uint32_t id); struct sgsn_ggsn_ctx *sgsn_ggsn_ctx_by_id(uint32_t id); +struct sgsn_ggsn_ctx *sgsn_ggsn_ctx_by_addr(struct in_addr *addr); struct sgsn_ggsn_ctx *sgsn_ggsn_ctx_find_alloc(uint32_t id); struct apn_ctx { @@ -202,4 +212,8 @@ extern struct llist_head sgsn_pdp_ctxts; uint32_t sgsn_alloc_ptmsi(void); +/* High-level function to be called in case a GGSN has disappeared or + * ottherwise lost state (recovery procedure) */ +int drop_all_pdp_for_ggsn(struct sgsn_ggsn_ctx *ggsn); + #endif /* _GPRS_SGSN_H */ |