1 files changed, 0 insertions, 262 deletions
diff --git a/src/paging.c b/src/paging.c
deleted file mode 100644
index d777d6642..000000000
--- a/src/paging.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/* Paging helper and manager.... */
-/* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-/*
- * Relevant specs:
- *     12.21:
- *       - 9.4.12 for CCCH Local Threshold
- *
- *     05.58:
- *       - 8.5.2 CCCH Load indication
- *       - 9.3.15 Paging Load
- *
- * Approach:
- *       - Send paging command to subscriber
- *       - On Channel Request we will remember the reason
- *       - After the ACK we will request the identity
- *	 - Then we will send assign the gsm_subscriber and
- *	 - and call a callback
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-
-#include <openbsc/paging.h>
-#include <openbsc/debug.h>
-#include <openbsc/signal.h>
-#include <openbsc/abis_rsl.h>
-#include <openbsc/gsm_data.h>
-
-#define PAGING_TIMEOUT 1, 75000
-#define MAX_PAGING_REQUEST 750
-
-static unsigned int calculate_group(struct gsm_bts *bts, struct gsm_subscriber *subscr)
-{
-	int ccch_conf;
-	int bs_cc_chans;
-	int blocks;
-	unsigned int group;
-	
-	ccch_conf = bts->chan_desc.ccch_conf;
-	bs_cc_chans = rsl_ccch_conf_to_bs_cc_chans(ccch_conf);
-	/* code word + 2, as 2 channels equals 0x0 */
-	blocks = rsl_number_of_paging_subchannels(bts);
-	group = get_paging_group(str_to_imsi(subscr->imsi),
-					bs_cc_chans, blocks);
-	return group;
-}
-
-/*
- * Kill one paging request update the internal list...
- */
-static void paging_remove_request(struct gsm_bts_paging_state *paging_bts,
-				struct gsm_paging_request *to_be_deleted)
-{
-	/* Update the last_request if that is necessary */
-	if (to_be_deleted == paging_bts->last_request) {
-		paging_bts->last_request =
-			(struct gsm_paging_request *)paging_bts->last_request->entry.next;
-		if (&to_be_deleted->entry == &paging_bts->pending_requests)
-			paging_bts->last_request = NULL;
-	}
-
-	bsc_del_timer(&to_be_deleted->T3113);
-	llist_del(&to_be_deleted->entry);
-	subscr_put(to_be_deleted->subscr);
-	free(to_be_deleted);
-}
-
-static void page_ms(struct gsm_paging_request *request)
-{
-	u_int8_t mi[128];
-	unsigned long int tmsi;
-	unsigned int mi_len;
-	unsigned int page_group;
-
-	DEBUGP(DPAG, "Going to send paging commands: '%s'\n",
-		request->subscr->imsi);
-
-	page_group = calculate_group(request->bts, request->subscr);
-	tmsi = strtoul(request->subscr->tmsi, NULL, 10);
-	mi_len = generate_mid_from_tmsi(mi, tmsi);
-	rsl_paging_cmd(request->bts, page_group, mi_len, mi,
-			request->chan_type);
-}
-
-static void paging_move_to_next(struct gsm_bts_paging_state *paging_bts)
-{
-	paging_bts->last_request =
-		(struct gsm_paging_request *)paging_bts->last_request->entry.next;
-	if (&paging_bts->last_request->entry == &paging_bts->pending_requests)
-		paging_bts->last_request = NULL;
-}
-
-/*
- * This is kicked by the periodic PAGING LOAD Indicator
- * coming from abis_rsl.c
- *
- * We attempt to iterate once over the list of items but
- * only upto available_slots.
- */
-static void paging_handle_pending_requests(struct gsm_bts_paging_state *paging_bts)
-{
-	struct gsm_paging_request *initial_request = NULL;
-	struct gsm_paging_request *current_request = NULL;
-
-	/*
-	 * Determine if the pending_requests list is empty and
-	 * return then.
-	 */
-	if (llist_empty(&paging_bts->pending_requests)) {
-		paging_bts->last_request = NULL;
-		/* since the list is empty, no need to reschedule the timer */
-		return;
-	}
-
-	if (!paging_bts->last_request)
-		paging_bts->last_request =
-			(struct gsm_paging_request *)paging_bts->pending_requests.next;
-
-	assert(paging_bts->last_request);
-	initial_request = paging_bts->last_request;
-	current_request = initial_request;
-
-	do {
-		/* handle the paging request now */
-		page_ms(current_request);
-		paging_bts->available_slots--;
-
-		/*
-		 * move to the next item. We might wrap around
-		 * this means last_request will be NULL and we just
-		 * call paging_page_to_next again. It it guranteed
-		 * that the list is not empty.
-		 */
-		paging_move_to_next(paging_bts);
-		if (!paging_bts->last_request)
-			paging_bts->last_request =
-				(struct gsm_paging_request *)paging_bts->pending_requests.next;
-		current_request = paging_bts->last_request;
-	} while (paging_bts->available_slots > 0
-		    &&  initial_request != current_request);
-
-	bsc_schedule_timer(&paging_bts->work_timer, 1, 0);
-}
-
-static void paging_worker(void *data)
-{
-	struct gsm_bts_paging_state *paging_bts = data;
-
-	paging_handle_pending_requests(paging_bts);
-}
-
-void paging_init(struct gsm_bts *bts)
-{
-	bts->paging.bts = bts;
-	INIT_LLIST_HEAD(&bts->paging.pending_requests);
-	bts->paging.work_timer.cb = paging_worker;
-	bts->paging.work_timer.data = &bts->paging;
-
-	/* Large number, until we get a proper message */
-	bts->paging.available_slots = 100;
-}
-
-static int paging_pending_request(struct gsm_bts_paging_state *bts,
-				struct gsm_subscriber *subscr) {
-	struct gsm_paging_request *req;
-
-	llist_for_each_entry(req, &bts->pending_requests, entry) {
-		if (subscr == req->subscr)
-			return 1;
-	}
-
-	return 0;	
-}
-
-static void paging_T3113_expired(void *data)
-{
-	struct gsm_paging_request *req = (struct gsm_paging_request *)data;
-	struct paging_signal_data sig_data;
-
-	DEBUGP(DPAG, "T3113 expired for request %p (%s)\n",
-		req, req->subscr->imsi);
-	
-	sig_data.subscr = req->subscr,
-	sig_data.bts	= req->bts,
-	sig_data.lchan	= NULL,
-
-	dispatch_signal(SS_PAGING, S_PAGING_COMPLETED, &sig_data);
-	if (req->cbfn)
-		req->cbfn(GSM_HOOK_RR_PAGING, GSM_PAGING_EXPIRED, NULL, NULL,
-			  req->cbfn_param);
-	paging_remove_request(&req->bts->paging, req);
-}
-
-void paging_request(struct gsm_bts *bts, struct gsm_subscriber *subscr,
-		    int type, gsm_cbfn *cbfn, void *data)
-{
-	struct gsm_bts_paging_state *bts_entry = &bts->paging;
-	struct gsm_paging_request *req;
-
-	if (paging_pending_request(bts_entry, subscr)) {
-		DEBUGP(DPAG, "Paging request already pending\n");
-		return;
-	}
-
-	req = (struct gsm_paging_request *)malloc(sizeof(*req));
-	memset(req, 0, sizeof(*req));
-	req->subscr = subscr_get(subscr);
-	req->bts = bts;
-	req->chan_type = type;
-	req->cbfn = cbfn;
-	req->cbfn_param = data;
-	req->T3113.cb = paging_T3113_expired;
-	req->T3113.data = req;
-	bsc_schedule_timer(&req->T3113, T3113_VALUE);
-	llist_add_tail(&req->entry, &bts_entry->pending_requests);
-
-	if (!bsc_timer_pending(&bts_entry->work_timer))
-		bsc_schedule_timer(&bts_entry->work_timer, 1, 0);
-}
-
-/* we consciously ignore the type of the request here */
-void paging_request_stop(struct gsm_bts *bts, struct gsm_subscriber *subscr,
-			 struct gsm_lchan *lchan)
-{
-	struct gsm_bts_paging_state *bts_entry = &bts->paging;
-	struct gsm_paging_request *req, *req2;
-
-	llist_for_each_entry_safe(req, req2, &bts_entry->pending_requests,
-				 entry) {
-		if (req->subscr == subscr) {
-			if (req->cbfn)
-				req->cbfn(GSM_HOOK_RR_PAGING, GSM_PAGING_SUCCEEDED,
-					  NULL, lchan, req->cbfn_param);
-			paging_remove_request(&bts->paging, req);
-			break;
-		}
-	}
-}
-
-void paging_update_buffer_space(struct gsm_bts *bts, u_int16_t free_slots)
-{
-	bts->paging.available_slots = free_slots;
-}