diff options
Diffstat (limited to 'src/utils/meas_pcap2db.c')
-rw-r--r-- | src/utils/meas_pcap2db.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/utils/meas_pcap2db.c b/src/utils/meas_pcap2db.c new file mode 100644 index 000000000..b874ac403 --- /dev/null +++ b/src/utils/meas_pcap2db.c @@ -0,0 +1,138 @@ +/* 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 <osmocom/core/socket.h> +#include <osmocom/core/utils.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); +} |