add some comments regarding the free() / release of pdp contextx
It might be that we're deleting structures instead of properly cleaning up the attached libgtp handles...
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@ -604,6 +604,9 @@ static int gsm48_rx_gmm_id_resp(struct sgsn_mm_ctx *ctx, struct msgb *msg)
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ictx->p_tmsi, ctx->p_tmsi);
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gprs_llgmm_assign(ictx->llme, ictx->tlli,
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0xffffffff, GPRS_ALGO_GEA0, NULL);
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/* FIXME: this is a hard free, we don't
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* clean-up any PDP contexts on the
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* libgtp side */
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sgsn_mm_ctx_free(ictx);
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}
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}
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@ -173,6 +173,8 @@ struct sgsn_mm_ctx *sgsn_mm_ctx_alloc(uint32_t tlli,
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return ctx;
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}
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/* this is a hard _free_ function, it doesn't clean up the PDP contexts
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* in libgtp! */
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void sgsn_mm_ctx_free(struct sgsn_mm_ctx *mm)
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{
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struct sgsn_pdp_ctx *pdp, *pdp2;
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@ -215,6 +217,7 @@ struct sgsn_pdp_ctx *sgsn_pdp_ctx_by_tid(const struct sgsn_mm_ctx *mm,
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return NULL;
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}
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/* you don't want to use this directly, call sgsn_create_pdp_ctx() */
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struct sgsn_pdp_ctx *sgsn_pdp_ctx_alloc(struct sgsn_mm_ctx *mm,
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uint8_t nsapi)
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{
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@ -237,6 +240,7 @@ struct sgsn_pdp_ctx *sgsn_pdp_ctx_alloc(struct sgsn_mm_ctx *mm,
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return pdp;
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}
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/* you probably want to call sgsn_delete_pdp_ctx() instead */
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void sgsn_pdp_ctx_free(struct sgsn_pdp_ctx *pdp)
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{
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rate_ctr_group_free(pdp->ctrg);
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@ -359,6 +363,7 @@ static void drop_one_pdp(struct sgsn_pdp_ctx *pdp)
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/* FIXME: GPRS paging in case MS is SUSPENDED */
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LOGP(DGPRS, LOGL_NOTICE, "Hard-dropping PDP ctx due to GGSN "
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"recovery\n");
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/* FIXME: how to tell this to libgtp? */
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sgsn_pdp_ctx_free(pdp);
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}
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}
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