mirror of https://gerrit.osmocom.org/osmo-pcap
153 lines
3.2 KiB
C
153 lines
3.2 KiB
C
/*
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* osmo-pcap-server code
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*
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* (C) 2011-2016 by Holger Hans Peter Freyther <holger@moiji-mobile.com>
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* (C) 2011 by On-Waves
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef OSMO_PCAP_SERVER_H
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#define OSMO_PCAP_SERVER_H
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#include "wireformat.h"
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#include "osmo_tls.h"
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#include <osmocom/core/select.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/write_queue.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <pcap.h>
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#include <stdbool.h>
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#include <time.h>
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struct rate_ctr_group;
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struct rate_ctr_group_desc;
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struct osmo_pcap_server;
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#define STATE_INITIAL 0
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#define STATE_DATA 1
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enum {
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PEER_CTR_CONNECT,
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PEER_CTR_BYTES,
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PEER_CTR_PKTS,
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PEER_CTR_PROTATE,
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};
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enum {
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SERVER_CTR_CONNECT,
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SERVER_CTR_BYTES,
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SERVER_CTR_PKTS,
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SERVER_CTR_PROTATE,
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SERVER_CTR_NOCLIENT,
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};
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struct osmo_pcap_conn {
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/* list of connections */
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struct llist_head entry;
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struct osmo_pcap_server *server;
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/* name */
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char *name;
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char *remote_host;
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int no_store;
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struct in_addr remote_addr;
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/* Remote connection */
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struct osmo_wqueue rem_wq;
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int local_fd;
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char *curr_filename;
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/* pcap stuff */
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struct pcap_file_header file_hdr;
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/* last time */
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struct tm last_write;
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/* read buffering */
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int state;
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int pend;
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int reopen;
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struct osmo_pcap_data *data;
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/* statistics */
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struct rate_ctr_group *ctrg;
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/* tls */
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bool tls_use;
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bool direct_read;
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size_t tls_limit_read;
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struct osmo_tls_session tls_session;
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};
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struct osmo_pcap_server {
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struct llist_head conn;
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int port;
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char *addr;
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struct osmo_fd listen_fd;
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/* zeromq handling */
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int zmq_port;
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char *zmq_ip;
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void *zmq_ctx;
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void *zmq_publ;
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/* tls base */
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bool tls_on;
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bool tls_allow_anon;
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bool tls_allow_x509;
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unsigned tls_log_level;
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char *tls_priority;
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char *tls_capath;
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char *tls_crlfile;
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char *tls_server_cert;
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char *tls_server_key;
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char *tls_dh_pkcs3;
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gnutls_dh_params_t dh_params;
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bool dh_params_allocated;
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char *base_path;
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mode_t permission_mask;
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off_t max_size;
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int max_snaplen;
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/* statistics */
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struct rate_ctr_group *ctrg;
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};
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extern struct osmo_pcap_server *pcap_server;
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extern const struct rate_ctr_group_desc pcap_peer_group_desc;
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void osmo_pcap_server_reopen(struct osmo_pcap_server *server);
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int osmo_pcap_server_listen(struct osmo_pcap_server *server);
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struct osmo_pcap_conn *osmo_pcap_server_find(struct osmo_pcap_server *ser,
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const char *name);
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void osmo_pcap_server_delete(struct osmo_pcap_conn *conn);
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void vty_server_init(void);
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void osmo_pcap_server_close_trace(struct osmo_pcap_conn *conn);
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void osmo_pcap_server_close_conn(struct osmo_pcap_conn *conn);
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#endif
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