Added PCU debugging/logging support code based on osmocom logging system.

Makefile.am

@@ -26,6 +26,7 @@ AM_CXXFLAGS = -Wall -ldl -pthread
 noinst_LTLIBRARIES = libgprs.la
 
 libgprs_la_SOURCES = \
+	gprs_debug.cpp \
 	csn1.cpp \
 	gsm_rlcmac.cpp \
 	gprs_bssgp_pcu.cpp \
@@ -39,6 +40,7 @@ noinst_PROGRAMS = \
 	pcu
 
 noinst_HEADERS = \
+	gprs_debug.h \
 	csn1.h \
 	gsm_rlcmac.h \
 	gprs_bssgp_pcu.h \
@@ -47,13 +49,15 @@ noinst_HEADERS = \
 	gsm_timer.h \
 	bitvector.h
 
+OPENBSC_DIR = /home/ivan/work/openbsc/openbsc/openbsc
+OPENGGSN_DIR = /home/ivan/work/openbsc/openggsn
+OSMOCORE_DIR = /home/ivan/work/openbsc/libosmocore
+
 RLCMACTest_SOURCES = RLCMACTest.cpp
 RLCMACTest_LDADD = \
 	libgprs.la \
-	$(COMMON_LA) 
-
-OPENBSC_DIR = /home/ivan/work/openbsc/openbsc/openbsc
-OPENGGSN_DIR = /home/ivan/work/openbsc/openggsn
+	-losmocore \
+	$(COMMON_LA)
 
 pcu_SOURCES = pcu_main.cpp
 pcu_LDADD = \
@@ -76,9 +80,10 @@ pcu_LDADD = \
 	$(OPENBSC_DIR)/src/gprs/gprs_sgsn.o \
 	$(OPENBSC_DIR)/src/libcommon/socket.o \
 	$(OPENBSC_DIR)/src/libcommon/debug.o \
+	$(OSMOCORE_DIR)/src/bitvec.o \
+	$(OSMOCORE_DIR)/src/talloc.o \
 	-losmocore \
 	-losmogsm \
 	$(COMMON_LA)
 
 #MOSTLYCLEANFILES += testSource testDestination
-

gprs_debug.cpp

@@ -0,0 +1,81 @@
+/* gprs_debug.cpp
+ *
+ * Copyright (C) 2012 Ivan Klyuchnikov
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+ 
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include <time.h>
+#include <errno.h>
+
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/logging.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <gprs_debug.h>
+
+/* default categories */
+
+static const struct log_info_cat default_categories[] = {
+	{"DCSN1", "\033[1;31m", "Concrete Syntax Notation One (CSN1)", LOGL_NOTICE, 1},
+	{"DL1IF", "\033[1;32m", "GPRS PCU L1 interface (L1IF)", LOGL_NOTICE, 1},
+	{"DRLCMAC", "\033[1;33m", "GPRS RLC/MAC layer (RLCMAC)", LOGL_NOTICE, 1},
+	{"DRLCMACDATA", "\033[1;36m", "GPRS RLC/MAC layer Data (RLCMAC)", LOGL_NOTICE, 1},
+	{"DBSSGP", "\033[1;34m", "GPRS BSS Gateway Protocol (BSSGP)", LOGL_NOTICE , 1},
+	{"DPCU", "\033[1;35m", "GPRS Packet Control Unit (PCU)", LOGL_NOTICE, 1}
+};
+
+enum {
+	_FLT_ALL = LOG_FILTER_ALL,	/* libosmocore */
+	FLT_IMSI = 1,
+	FLT_NSVC = 2,
+	FLT_BVC  = 3,
+};
+
+static int filter_fn(const struct log_context *ctx,
+		     struct log_target *tar)
+{
+	struct gsm_subscriber *subscr = (struct gsm_subscriber*)ctx->ctx[BSC_CTX_SUBSCR];
+	const struct gprs_nsvc *nsvc = (const struct gprs_nsvc*)ctx->ctx[BSC_CTX_NSVC];
+	const struct gprs_nsvc *bvc = (const struct gprs_nsvc*)ctx->ctx[BSC_CTX_BVC];
+
+	if ((tar->filter_map & (1 << FLT_IMSI)) != 0
+	    && subscr && strcmp(subscr->imsi, (const char*)tar->filter_data[FLT_IMSI]) == 0)
+		return 1;
+
+	/* Filter on the NS Virtual Connection */
+	if ((tar->filter_map & (1 << FLT_NSVC)) != 0
+	    && nsvc && (nsvc == tar->filter_data[FLT_NSVC]))
+		return 1;
+
+	/* Filter on the BVC */
+	if ((tar->filter_map & (1 << FLT_BVC)) != 0
+	    && bvc && (bvc == tar->filter_data[FLT_BVC]))
+		return 1;
+
+	return 0;
+}
+
+const struct log_info gprs_log_info = {
+	filter_fn,
+	(struct log_info_cat*)default_categories,
+	ARRAY_SIZE(default_categories),
+};

gprs_debug.h

@@ -0,0 +1,68 @@
+/* gprs_debug.h
+ *
+ * Copyright (C) 2012 Ivan Klyuchnikov
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+ 
+#ifndef GPRS_DEBUG_H
+#define GPRS_DEBUG_H
+
+#include <stdio.h>
+extern "C" {
+#include <osmocom/core/linuxlist.h>
+#include <osmocom/core/logging.h>
+};
+/* Debug Areas of the code */
+enum {
+	DCSN1,
+	DL1IF,
+	DRLCMAC,
+	DRLCMACDATA,
+	DBSSGP,
+	DPCU,
+	aDebug_LastEntry
+};
+
+/* context */
+#define BSC_CTX_SUBSCR	1
+#define BSC_CTX_NSVC	4
+#define BSC_CTX_BVC		5
+
+/* target */
+
+enum {
+	//DEBUG_FILTER_ALL = 1 << 0,
+	LOG_FILTER_IMSI = 1 << 1,
+	LOG_FILTER_NSVC = 1 << 2,
+	LOG_FILTER_BVC  = 1 << 3,
+};
+
+/* we don't need a header dependency for this... */
+
+struct gprs_nsvc;
+struct bssgp_bvc_ctx;
+
+void log_set_imsi_filter(struct log_target *target, const char *imsi);
+void log_set_nsvc_filter(struct log_target *target,
+			 struct gprs_nsvc *nsvc);
+void log_set_bvc_filter(struct log_target *target,
+			struct bssgp_bvc_ctx *bctx);
+
+extern const struct log_info gprs_log_info;
+
+
+
+#endif // GPRS_DEBUG_H