[rsl] Introduce a method to set the state of the lchan
Setting the state through a dedicated method allows us to track the state transitions and check if they are done in a proper way.
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@ -70,6 +70,8 @@ u_int64_t str_to_imsi(const char *imsi_str);
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u_int8_t lchan2chan_nr(const struct gsm_lchan *lchan);
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int rsl_release_request(struct gsm_lchan *lchan, u_int8_t link_id, u_int8_t release_reason);
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int rsl_lchan_set_state(struct gsm_lchan *lchan, int);
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/* to be provided by external code */
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int abis_rsl_sendmsg(struct msgb *msg);
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int rsl_deact_sacch(struct gsm_lchan *lchan);
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@ -579,7 +579,7 @@ static void error_timeout_cb(void *data)
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/* go back to the none state */
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LOGP(DRSL, LOGL_NOTICE, "%s is back in operation.\n", gsm_lchan_name(lchan));
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lchan->state = LCHAN_S_NONE;
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rsl_lchan_set_state(lchan, LCHAN_S_NONE);
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}
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/* Chapter 8.4.14 / 4.7: Tell BTS to release the radio channel */
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@ -610,7 +610,7 @@ static int rsl_rf_chan_release(struct gsm_lchan *lchan, int error)
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* be a problem when we have reassigned the channel to someone else and then can
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* not figure out who used this channel.
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*/
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lchan->state = LCHAN_S_REL_ERR;
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rsl_lchan_set_state(lchan, LCHAN_S_REL_ERR);
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lchan->error_timer.data = lchan;
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lchan->error_timer.cb = error_timeout_cb;
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bsc_schedule_timer(&lchan->error_timer,
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@ -762,7 +762,7 @@ int rsl_release_request(struct gsm_lchan *lchan, u_int8_t link_id, u_int8_t reas
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/* 0 is normal release, 1 is local end */
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msgb_tv_put(msg, RSL_IE_RELEASE_MODE, reason);
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lchan->state = LCHAN_S_REL_REQ;
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rsl_lchan_set_state(lchan, LCHAN_S_REL_REQ);
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/* FIXME: start some timer in case we don't receive a REL ACK ? */
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msg->trx = lchan->ts->trx;
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@ -770,6 +770,12 @@ int rsl_release_request(struct gsm_lchan *lchan, u_int8_t link_id, u_int8_t reas
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return abis_rsl_sendmsg(msg);
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}
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int rsl_lchan_set_state(struct gsm_lchan *lchan, int state)
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{
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lchan->state = state;
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return 0;
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}
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/* Chapter 8.4.2: Channel Activate Acknowledge */
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static int rsl_rx_chan_act_ack(struct msgb *msg)
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{
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@ -784,7 +790,7 @@ static int rsl_rx_chan_act_ack(struct msgb *msg)
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LOGP(DRSL, LOGL_NOTICE, "%s CHAN ACT ACK, but state %s\n",
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gsm_lchan_name(msg->lchan),
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gsm_lchans_name(msg->lchan->state));
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msg->lchan->state = LCHAN_S_ACTIVE;
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rsl_lchan_set_state(msg->lchan, LCHAN_S_ACTIVE);
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dispatch_signal(SS_LCHAN, S_LCHAN_ACTIVATE_ACK, msg->lchan);
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@ -810,9 +816,9 @@ static int rsl_rx_chan_act_nack(struct msgb *msg)
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print_rsl_cause(LOGL_ERROR, cause,
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TLVP_LEN(&tp, RSL_IE_CAUSE));
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if (*cause != RSL_ERR_RCH_ALR_ACTV_ALLOC)
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msg->lchan->state = LCHAN_S_NONE;
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rsl_lchan_set_state(msg->lchan, LCHAN_S_NONE);
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} else
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msg->lchan->state = LCHAN_S_NONE;
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rsl_lchan_set_state(msg->lchan, LCHAN_S_NONE);
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LOGPC(DRSL, LOGL_ERROR, "\n");
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@ -1019,7 +1025,7 @@ static int abis_rsl_rx_dchan(struct msgb *msg)
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bsc_del_timer(&msg->lchan->T3111);
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/* we have an error timer pending to release that */
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if (msg->lchan->state != LCHAN_S_REL_ERR)
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msg->lchan->state = LCHAN_S_NONE;
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rsl_lchan_set_state(msg->lchan, LCHAN_S_NONE);
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lchan_free(msg->lchan);
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break;
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case RSL_MT_MODE_MODIFY_ACK:
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@ -1170,7 +1176,7 @@ static int rsl_rx_chan_rqd(struct msgb *msg)
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LOGP(DRSL, LOGL_NOTICE, "%s lchan_alloc() returned channel "
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"in state %s\n", gsm_lchan_name(lchan),
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gsm_lchans_name(lchan->state));
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lchan->state = LCHAN_S_ACT_REQ;
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rsl_lchan_set_state(lchan, LCHAN_S_ACT_REQ);
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ts_number = lchan->ts->nr;
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arfcn = lchan->ts->trx->arfcn;
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