Added PCU debugging/logging support code based on osmocom logging system.
diff --git a/gprs_debug.cpp b/gprs_debug.cpp
new file mode 100644
index 0000000..479e988
--- /dev/null
+++ b/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),
+};