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/*
* UFTP - UDP based FTP with multicast
*
* Copyright (C) 2001-2014 Dennis A. Bush, Jr. bush@tcnj.edu
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this program, or any covered work, by linking or
* combining it with the OpenSSL project's OpenSSL library (or a
* modified version of that library), containing parts covered by the
* terms of the OpenSSL or SSLeay licenses, the copyright holder
* grants you additional permission to convey the resulting work.
* Corresponding Source for a non-source form of such a combination
* shall include the source code for the parts of OpenSSL used as well
* as that of the covered work.
*/
#ifndef _PROXY_COMMON_H
#define _PROXY_COMMON_H
int other_mcast_users(struct pr_group_list_t *group);
struct pr_group_list_t *find_group(uint32_t group_id, uint8_t group_inst);
int find_client(struct pr_group_list_t *group, uint32_t addr);
void group_cleanup(struct pr_group_list_t *group);
void set_uftp_header(struct uftp_h *header, int func,
struct pr_group_list_t *group);
void set_timeout(struct pr_group_list_t *group, int pending_reset, int rescale);
int max_msg_dest(struct pr_group_list_t *group, int func, int hlen);
void send_all_pending(struct pr_group_list_t *group);
void check_pending(struct pr_group_list_t *group, int hostdix,
const unsigned char *message);
int load_pending(struct pr_group_list_t *group, int pendidx, int func,
uint32_t *addrlist, int listlen);
int check_unfinished_clients(struct pr_group_list_t *group, int abort);
void forward_message(struct pr_group_list_t *group,
const union sockaddr_u *src,
unsigned char *packet, int packetlen);
void handle_hb_request(const union sockaddr_u *src,
unsigned char *packet, unsigned packetlen);
void handle_key_req(const union sockaddr_u *src,
const unsigned char *packet, unsigned packetlen);
void handle_abort(struct pr_group_list_t *group, const union sockaddr_u *src,
const unsigned char *message, unsigned meslen,
uint32_t src_id);
void send_upstream_abort(struct pr_group_list_t *group, uint32_t dest_id,
const char *message);
void send_downstream_abort(struct pr_group_list_t *group, uint32_t dest_id,
const char *message, int current);
void send_hb_response(const union sockaddr_u *src, int response);
void send_proxy_key(void);
int verify_fingerprint(const struct fp_list_t *fplist, int listlen,
const unsigned char *keyblob, uint16_t bloblen,
struct pr_group_list_t *group, uint32_t id);
uint8_t *build_verify_data(struct pr_group_list_t *group, int hostidx,
int *verifylen, int full);
void add_naks_to_pending(struct pr_group_list_t *group, int pendidx,
const unsigned char *message);
#endif // _PROXY_COMMON_H
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