Merge branch 'laforge/meas_vis'

I'm merging this code, as it is proven to be very useful.  The only
reason to keep it out of master was the fact that the UDP data
structures it sends are non-portable, so you can only run it reliably on
localhost or between identical systems (hardware/compiler/os).

As this hasn't been fixed in the past >= 2 years, I am merging the code
now anyway.  We can still introduce a portable protocol by increasing
the protocol  version at a later point.

There are two options:
a) we make 'struct gsm_meas_rep' portable.  This requires an ABI
   change with libosmocore, as it contains struct gsm_meas_rep_unidir :(

b) we introduce a completely separate wire format with corresponding
   encoding and decoding functions.

1 files changed, 141 insertions, 0 deletions

diff --git a/openbsc/src/utils/meas_pcap2db.c b/openbsc/src/utils/meas_pcap2db.c
new file mode 100644
index 000000000..1022d4a31
--- /dev/null
+++ b/openbsc/src/utils/meas_pcap2db.c
@@ -0,0 +1,141 @@
+/* read PCAP file with meas_feed data and write it to sqlite3 database */
+
+/* (C) 2012 by Harald Welte <laforge@gnumonks.org>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+
+#include <cdk/cdk.h>
+
+#include <osmocom/core/socket.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/select.h>
+#include <osmocom/core/talloc.h>
+
+#include <osmocom/gsm/gsm_utils.h>
+
+#include <openbsc/meas_feed.h>
+
+#include <pcap/pcap.h>
+
+#include "meas_db.h"
+
+static struct meas_db_state *db;
+
+static void handle_mfm(const struct pcap_pkthdr *h,
+		       const struct meas_feed_meas *mfm)
+{
+	const char *scenario;
+
+	if (strlen(mfm->scenario))
+		scenario = mfm->scenario;
+	else
+		scenario = NULL;
+
+	meas_db_insert(db, mfm->imsi, mfm->name, h->ts.tv_sec,
+			scenario, &mfm->mr);
+}
+
+static void pcap_cb(u_char *user, const struct pcap_pkthdr *h,
+		   const u_char *bytes)
+{
+	const char *cur = bytes;
+	const struct iphdr *ip;
+	const struct udphdr *udp;
+	const struct meas_feed_meas *mfm;
+	uint16_t udplen;
+
+	if (h->caplen < 14+20+8)
+		return;
+
+	/* Check if there is IPv4 in the Ethernet */
+	if (cur[12] != 0x08 || cur[13] != 0x00)
+		return;
+
+	cur += 14;	/* ethernet header */
+	ip = (struct iphdr *) cur;
+
+	if (ip->version != 4)
+		return;
+	cur += ip->ihl * 4;
+
+	if (ip->protocol != IPPROTO_UDP)
+		return;
+
+	udp = (struct udphdr *) cur;
+
+	if (udp->dest != htons(8888))
+		return;
+
+	udplen = ntohs(udp->len);
+	if (udplen != sizeof(*udp) + sizeof(*mfm))
+		return;
+	cur += sizeof(*udp);
+
+	mfm = (const struct meas_feed_meas *) cur;
+
+	handle_mfm(h, mfm);
+}
+
+int main(int argc, char **argv)
+{
+	char errbuf[PCAP_ERRBUF_SIZE+1];
+	char *pcap_fname, *db_fname;
+	pcap_t *pc;
+	int rc;
+
+	if (argc < 3) {
+		fprintf(stderr, "You need to specify PCAP and database file\n");
+		exit(2);
+	}
+
+	pcap_fname = argv[1];
+	db_fname = argv[2];
+
+	pc = pcap_open_offline(pcap_fname, errbuf);
+	if (!pc) {
+		fprintf(stderr, "Cannot open %s: %s\n", pcap_fname, errbuf);
+		exit(1);
+	}
+
+	db = meas_db_open(NULL, db_fname);
+	if (!db)
+		exit(0);
+
+	rc = meas_db_begin(db);
+	if (rc < 0) {
+		fprintf(stderr, "Error during BEGIN\n");
+		exit(1);
+	}
+
+	pcap_loop(pc, 0 , pcap_cb, NULL);
+
+	meas_db_commit(db);
+
+	exit(0);
+}