mirror of https://gerrit.osmocom.org/osmo-pcap
130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
/*
|
|
* 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;
|
|
|
|
#define WQUEUE_MAXLEN_DEFAULT 1000
|
|
|
|
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,
|
|
};
|
|
|
|
enum osmo_pcap_protocol {
|
|
PROTOCOL_OSMOPCAP,
|
|
PROTOCOL_IPIP,
|
|
};
|
|
|
|
struct osmo_pcap_client_conn {
|
|
struct llist_head entry;
|
|
const char *name;
|
|
|
|
char *srv_ip;
|
|
int srv_port;
|
|
char *source_ip;
|
|
struct osmo_wqueue wqueue;
|
|
struct osmo_timer_list timer;
|
|
enum osmo_pcap_protocol protocol;
|
|
|
|
/* 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;
|
|
int snaplen;
|
|
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;
|
|
|
|
struct osmo_pcap_client *osmo_pcap_client_alloc(void *tall_ctx);
|
|
int vty_client_init(void);
|
|
|
|
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_disconnect(struct osmo_pcap_client_conn *);
|
|
void osmo_client_free(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);
|
|
struct osmo_pcap_client_conn *osmo_client_find_conn(struct osmo_pcap_client *, const char *name);
|
|
|
|
void osmo_client_conn_init(struct osmo_pcap_client_conn *conn, struct osmo_pcap_client *client);
|