diff options
Diffstat (limited to 'openbsc/src/gprs/gprs_sgsn.c')
| -rw-r--r-- | openbsc/src/gprs/gprs_sgsn.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/openbsc/src/gprs/gprs_sgsn.c b/openbsc/src/gprs/gprs_sgsn.c index 9cd992b49..19b0a1b7c 100644 --- a/openbsc/src/gprs/gprs_sgsn.c +++ b/openbsc/src/gprs/gprs_sgsn.c @@ -39,6 +39,7 @@ #include <openbsc/gprs_utils.h> #include <openbsc/signal.h> #include "openbsc/gprs_llc.h" +#include <openbsc/iu.h> #include <pdp.h> @@ -130,6 +131,20 @@ void sgsn_rate_ctr_init() { sgsn->rate_ctrs = rate_ctr_group_alloc(tall_bsc_ctx, &sgsn_ctrg_desc, 0); } +/* look-up an SGSN MM context based on Iu UE context (struct ue_conn_ctx)*/ +struct sgsn_mm_ctx *sgsn_mm_ctx_by_ue_ctx(const void *uectx) +{ + struct sgsn_mm_ctx *ctx; + + llist_for_each_entry(ctx, &sgsn_mm_ctxts, list) { + if (ctx->ran_type == MM_CTX_T_UTRAN_Iu + && uectx == ctx->iu.ue_ctx) + return ctx; + } + + return NULL; +} + /* look-up a SGSN MM context based on TLLI + RAI */ struct sgsn_mm_ctx *sgsn_mm_ctx_by_tlli(uint32_t tlli, const struct gprs_ra_id *raid) @@ -218,6 +233,32 @@ struct sgsn_mm_ctx *sgsn_mm_ctx_alloc(uint32_t tlli, return ctx; } +/* Allocate a new SGSN MM context */ +struct sgsn_mm_ctx *sgsn_mm_ctx_alloc_iu(void *uectx) +{ + struct sgsn_mm_ctx *ctx; + + ctx = talloc_zero(tall_bsc_ctx, struct sgsn_mm_ctx); + if (!ctx) + return NULL; + + ctx->ran_type = MM_CTX_T_UTRAN_Iu; + ctx->iu.ue_ctx = uectx; + ctx->mm_state = GMM_DEREGISTERED; + ctx->auth_triplet.key_seq = GSM_KEY_SEQ_INVAL; + ctx->ctrg = rate_ctr_group_alloc(ctx, &mmctx_ctrg_desc, 0); + + /* Need to get RAID from IU conn */ + ctx->ra = ctx->iu.ue_ctx->ra_id; + + INIT_LLIST_HEAD(&ctx->pdp_list); + + llist_add(&ctx->list, &sgsn_mm_ctxts); + + return ctx; +} + + /* this is a hard _free_ function, it doesn't clean up the PDP contexts * in libgtp! */ static void sgsn_mm_ctx_free(struct sgsn_mm_ctx *mm) |