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/*
* osmo-pcap-client code
*
* (C) 2011-2016 by Holger Hans Peter Freyther <holger@moiji-mobile.com>
* (C) 2011 by On-Waves
* 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 "osmo_tls.h"
#include <inttypes.h>
#include <pcap.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/select.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/write_queue.h>
struct rate_ctr_group;
enum {
CLIENT_CTR_CONNECT,
CLIENT_CTR_BYTES,
CLIENT_CTR_PKTS,
CLIENT_CTR_2BIG,
CLIENT_CTR_NOMEM,
CLIENT_CTR_QERR,
CLIENT_CTR_PERR,
CLIENT_CTR_WERR,
CLIENT_CTR_P_RECV,
CLIENT_CTR_P_DROP,
CLIENT_CTR_P_IFDROP,
};
struct osmo_pcap_client_conn {
struct llist_head entry;
const char *name;
char *srv_ip;
int srv_port;
struct osmo_wqueue wqueue;
struct osmo_timer_list timer;
/* TLS handling */
bool tls_on;
bool tls_verify;
char *tls_hostname;
char *tls_capath;
char *tls_priority;
char *tls_client_cert;
char *tls_client_key;
unsigned tls_log_level;
struct osmo_tls_session tls_session;
/* back pointer */
struct osmo_pcap_client *client;
};
struct osmo_pcap_client {
char *device;
pcap_t *handle;
char errbuf[PCAP_ERRBUF_SIZE];
u_int last_ps_recv;
u_int last_ps_drop;
u_int last_ps_ifdrop;
struct osmo_timer_list pcap_stat_timer;
struct bpf_program bpf;
char *filter_string;
int filter_itself;
int gprs_filtering;
struct osmo_fd fd;
struct osmo_pcap_client_conn conn;
struct llist_head conns;
/* statistics */
struct rate_ctr_group *ctrg;
};
extern struct osmo_pcap_client *pcap_client;
int vty_client_init(struct osmo_pcap_client *);
int osmo_client_capture(struct osmo_pcap_client *client, const char *device);
int osmo_client_filter(struct osmo_pcap_client *client, const char *filter);
void osmo_client_send_data(struct osmo_pcap_client_conn *client,
struct pcap_pkthdr *hdr, const uint8_t *data);
void osmo_client_send_link(struct osmo_pcap_client_conn *client);
void osmo_client_connect(struct osmo_pcap_client_conn *);
void osmo_client_reconnect(struct osmo_pcap_client_conn *);
struct osmo_pcap_client_conn *osmo_client_find_or_create_conn(struct osmo_pcap_client *, const char *name);
void osmo_client_conn_init(struct osmo_pcap_client_conn *conn, struct osmo_pcap_client *client);
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