sgsn: Call mm_ctx_cleanup_free to deregister MM context
Currently the MM context isn't always removed when it is de-registered (mmctx_timer_cb), mm_state is set to GMM_DEREGISTERED instead. This can lead to left-over MM contexts which are only cleaned up if the MS reattaches. This patch replaces all of these assignments by a call to mm_ctx_cleanup_free. Ticket: OW#1324 Sponsored-by: On-Waves ehf
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@ -712,8 +712,6 @@ static int gsm48_rx_gmm_id_resp(struct sgsn_mm_ctx *ctx, struct msgb *msg)
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"p_tmsi_old=0x%08x\n",
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ictx->p_tmsi);
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ictx->mm_state = GMM_DEREGISTERED;
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mm_ctx_cleanup_free(ictx, "GPRS IMSI re-use");
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}
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}
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@ -1242,9 +1240,7 @@ static void mmctx_timer_cb(void *_mm)
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case 3350: /* waiting for ATTACH COMPLETE */
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if (mm->num_T_exp >= 5) {
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LOGMMCTXP(LOGL_NOTICE, mm, "T3350 expired >= 5 times\n");
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mm->mm_state = GMM_DEREGISTERED;
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mm->t3350_mode = GMM_T3350_MODE_NONE;
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mm->pending_req = 0;
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mm_ctx_cleanup_free(mm, "T3350");
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/* FIXME: should we return some error? */
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break;
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}
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@ -1269,7 +1265,7 @@ static void mmctx_timer_cb(void *_mm)
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case 3360: /* waiting for AUTH AND CIPH RESP */
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if (mm->num_T_exp >= 5) {
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LOGMMCTXP(LOGL_NOTICE, mm, "T3360 expired >= 5 times\n");
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mm->mm_state = GMM_DEREGISTERED;
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mm_ctx_cleanup_free(mm, "T3360");
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break;
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}
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/* FIXME: re-transmit the respective msg and re-start timer */
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@ -1279,7 +1275,7 @@ static void mmctx_timer_cb(void *_mm)
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if (mm->num_T_exp >= 5) {
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LOGMMCTXP(LOGL_NOTICE, mm, "T3370 expired >= 5 times\n");
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gsm48_tx_gmm_att_rej(mm, GMM_CAUSE_MS_ID_NOT_DERIVED);
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mm->mm_state = GMM_DEREGISTERED;
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mm_ctx_cleanup_free(mm, "GPRS ATTACH REJECT (T3370)");
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break;
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}
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/* re-tranmit IDENTITY REQUEST and re-start timer */
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