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The C and C++ Include Header Files

/usr/include/openvpn/openvpn-msg.h


$ cat -n /usr/include/openvpn/openvpn-msg.h

     1	/*
     2	 *  OpenVPN -- An application to securely tunnel IP networks
     3	 *             over a single TCP/UDP port, with support for SSL/TLS-based
     4	 *             session authentication and key exchange,
     5	 *             packet encryption, packet authentication, and
     6	 *             packet compression.
     7	 *
     8	 *  Copyright (C) 2013-2024 Heiko Hund <heiko.hund@sophos.com>
     9	 *
    10	 *  This program is free software; you can redistribute it and/or modify
    11	 *  it under the terms of the GNU General Public License version 2
    12	 *  as published by the Free Software Foundation.
    13	 *
    14	 *  This program is distributed in the hope that it will be useful,
    15	 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    16	 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    17	 *  GNU General Public License for more details.
    18	 *
    19	 *  You should have received a copy of the GNU General Public License along
    20	 *  with this program; if not, write to the Free Software Foundation, Inc.,
    21	 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
    22	 */
    23	
    24	#ifndef OPENVPN_MSG_H_
    25	#define OPENVPN_MSG_H_
    26	
    27	typedef enum {
    28	    msg_acknowledgement,
    29	    msg_add_address,
    30	    msg_del_address,
    31	    msg_add_route,
    32	    msg_del_route,
    33	    msg_add_dns_cfg,
    34	    msg_del_dns_cfg,
    35	    msg_add_nbt_cfg,
    36	    msg_del_nbt_cfg,
    37	    msg_flush_neighbors,
    38	    msg_add_block_dns,
    39	    msg_del_block_dns,
    40	    msg_register_dns,
    41	    msg_enable_dhcp,
    42	    msg_register_ring_buffers,
    43	    msg_set_mtu,
    44	    msg_add_wins_cfg,
    45	    msg_del_wins_cfg
    46	} message_type_t;
    47	
    48	typedef struct {
    49	    message_type_t type;
    50	    size_t size;
    51	    int message_id;
    52	} message_header_t;
    53	
    54	typedef union {
    55	    struct in_addr ipv4;
    56	    struct in6_addr ipv6;
    57	} inet_address_t;
    58	
    59	typedef struct {
    60	    int index;
    61	    char name[256];
    62	} interface_t;
    63	
    64	typedef struct {
    65	    message_header_t header;
    66	    short family;
    67	    inet_address_t address;
    68	    int prefix_len;
    69	    interface_t iface;
    70	} address_message_t;
    71	
    72	typedef struct {
    73	    message_header_t header;
    74	    short family;
    75	    inet_address_t prefix;
    76	    int prefix_len;
    77	    inet_address_t gateway;
    78	    interface_t iface;
    79	    int metric;
    80	} route_message_t;
    81	
    82	typedef struct {
    83	    message_header_t header;
    84	    interface_t iface;
    85	    char domains[512];
    86	    short family;
    87	    int addr_len;
    88	    inet_address_t addr[4]; /* support up to 4 dns addresses */
    89	} dns_cfg_message_t;
    90	
    91	typedef struct {
    92	    message_header_t header;
    93	    interface_t iface;
    94	    int addr_len;
    95	    inet_address_t addr[4]; /* support up to 4 dns addresses */
    96	} wins_cfg_message_t;
    97	
    98	typedef struct {
    99	    message_header_t header;
   100	    interface_t iface;
   101	    int disable_nbt;
   102	    int nbt_type;
   103	    char scope_id[256];
   104	    struct in_addr primary_nbns;
   105	    struct in_addr secondary_nbns;
   106	} nbt_cfg_message_t;
   107	
   108	/* TODO: NTP */
   109	
   110	typedef struct {
   111	    message_header_t header;
   112	    short family;
   113	    interface_t iface;
   114	} flush_neighbors_message_t;
   115	
   116	typedef struct {
   117	    message_header_t header;
   118	    int error_number;
   119	} ack_message_t;
   120	
   121	typedef struct {
   122	    message_header_t header;
   123	    interface_t iface;
   124	} block_dns_message_t;
   125	
   126	typedef struct {
   127	    message_header_t header;
   128	    interface_t iface;
   129	} enable_dhcp_message_t;
   130	
   131	typedef struct {
   132	    message_header_t header;
   133	    HANDLE device;
   134	    HANDLE send_ring_handle;
   135	    HANDLE receive_ring_handle;
   136	    HANDLE send_tail_moved;
   137	    HANDLE receive_tail_moved;
   138	} register_ring_buffers_message_t;
   139	
   140	typedef struct {
   141	    message_header_t header;
   142	    interface_t iface;
   143	    short family;
   144	    int mtu;
   145	} set_mtu_message_t;
   146	
   147	#endif /* ifndef OPENVPN_MSG_H_ */