| /* |
| * 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, |
| }; |
| |
| 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; |
| 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_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); |