summaryrefslogtreecommitdiff
path: root/src/openvpn/tun.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/openvpn/tun.h')
-rw-r--r--src/openvpn/tun.h413
1 files changed, 0 insertions, 413 deletions
diff --git a/src/openvpn/tun.h b/src/openvpn/tun.h
deleted file mode 100644
index 76c4867..0000000
--- a/src/openvpn/tun.h
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
- * OpenVPN -- An application to securely tunnel IP networks
- * over a single TCP/UDP port, with support for SSL/TLS-based
- * session authentication and key exchange,
- * packet encryption, packet authentication, and
- * packet compression.
- *
- * Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * 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 (see the file COPYING included with this
- * distribution); if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef TUN_H
-#define TUN_H
-
-#ifdef WIN32
-#include <winioctl.h>
-#include "tap-win32/common.h"
-#endif
-
-#include "buffer.h"
-#include "error.h"
-#include "mtu.h"
-#include "win32.h"
-#include "event.h"
-#include "proto.h"
-#include "misc.h"
-
-#ifdef WIN32
-
-struct tuntap_options {
- /* --ip-win32 options */
- bool ip_win32_defined;
-
-# define IPW32_SET_MANUAL 0 /* "--ip-win32 manual" */
-# define IPW32_SET_NETSH 1 /* "--ip-win32 netsh" */
-# define IPW32_SET_IPAPI 2 /* "--ip-win32 ipapi" */
-# define IPW32_SET_DHCP_MASQ 3 /* "--ip-win32 dynamic" */
-# define IPW32_SET_N 4
- int ip_win32_type;
-
- /* --ip-win32 dynamic options */
- bool dhcp_masq_custom_offset;
- int dhcp_masq_offset;
- int dhcp_lease_time;
-
- /* --tap-sleep option */
- int tap_sleep;
-
- /* --dhcp-option options */
-
- bool dhcp_options;
-
- const char *domain; /* DOMAIN (15) */
-
- const char *netbios_scope; /* NBS (47) */
-
- int netbios_node_type; /* NBT 1,2,4,8 (46) */
-
-#define N_DHCP_ADDR 4 /* Max # of addresses allowed for
- DNS, WINS, etc. */
-
- /* DNS (6) */
- in_addr_t dns[N_DHCP_ADDR];
- int dns_len;
-
- /* WINS (44) */
- in_addr_t wins[N_DHCP_ADDR];
- int wins_len;
-
- /* NTP (42) */
- in_addr_t ntp[N_DHCP_ADDR];
- int ntp_len;
-
- /* NBDD (45) */
- in_addr_t nbdd[N_DHCP_ADDR];
- int nbdd_len;
-
- /* DISABLE_NBT (43, Vendor option 001) */
- bool disable_nbt;
-
- bool dhcp_renew;
- bool dhcp_pre_release;
- bool dhcp_release;
-};
-
-#elif TARGET_LINUX
-
-struct tuntap_options {
- int txqueuelen;
-};
-
-#else
-
-struct tuntap_options {
- int dummy; /* not used */
-};
-
-#endif
-
-/*
- * Define a TUN/TAP dev.
- */
-
-struct tuntap
-{
-# define TUNNEL_TYPE(tt) ((tt) ? ((tt)->type) : DEV_TYPE_UNDEF)
- int type; /* DEV_TYPE_x as defined in proto.h */
-
- bool did_ifconfig_setup;
- bool did_ifconfig;
-
- bool ipv6;
-
- struct tuntap_options options; /* options set on command line */
-
- char *actual_name; /* actual name of TUN/TAP dev, usually including unit number */
-
- /* number of TX buffers */
- int txqueuelen;
-
- /* ifconfig parameters */
- in_addr_t local;
- in_addr_t remote_netmask;
- in_addr_t broadcast;
-
-#ifdef WIN32
- HANDLE hand;
- struct overlapped_io reads;
- struct overlapped_io writes;
- struct rw_handle rw_handle;
-
- /* used for setting interface address via IP Helper API
- or DHCP masquerade */
- bool ipapi_context_defined;
- ULONG ipapi_context;
- ULONG ipapi_instance;
- in_addr_t adapter_netmask;
-
- /* Windows adapter index for TAP-Win32 adapter,
- ~0 if undefined */
- DWORD adapter_index;
-#else
- int fd; /* file descriptor for TUN/TAP dev */
-#endif
-
-#ifdef TARGET_SOLARIS
- int ip_fd;
-#endif
-
- /* used for printing status info only */
- unsigned int rwflags_debug;
-
- /* Some TUN/TAP drivers like to be ioctled for mtu
- after open */
- int post_open_mtu;
-};
-
-static inline bool
-tuntap_defined (const struct tuntap *tt)
-{
-#ifdef WIN32
- return tt && tt->hand != NULL;
-#else
- return tt && tt->fd >= 0;
-#endif
-}
-
-/*
- * Function prototypes
- */
-
-void clear_tuntap (struct tuntap *tuntap);
-
-void open_tun (const char *dev, const char *dev_type, const char *dev_node,
- bool ipv6, struct tuntap *tt);
-
-void close_tun (struct tuntap *tt);
-
-int write_tun (struct tuntap* tt, uint8_t *buf, int len);
-
-int read_tun (struct tuntap* tt, uint8_t *buf, int len);
-
-void tuncfg (const char *dev, const char *dev_type, const char *dev_node,
- bool ipv6, int persist_mode);
-
-const char *guess_tuntap_dev (const char *dev,
- const char *dev_type,
- const char *dev_node,
- struct gc_arena *gc);
-
-struct tuntap *init_tun (const char *dev, /* --dev option */
- const char *dev_type, /* --dev-type option */
- const char *ifconfig_local_parm, /* --ifconfig parm 1 */
- const char *ifconfig_remote_netmask_parm, /* --ifconfig parm 2 */
- in_addr_t local_public,
- in_addr_t remote_public,
- const bool strict_warn,
- struct env_set *es);
-
-void init_tun_post (struct tuntap *tt,
- const struct frame *frame,
- const struct tuntap_options *options);
-
-void do_ifconfig (struct tuntap *tt,
- const char *actual, /* actual device name */
- int tun_mtu,
- const struct env_set *es);
-
-const char *dev_component_in_dev_node (const char *dev_node);
-
-bool is_dev_type (const char *dev, const char *dev_type, const char *match_type);
-int dev_type_enum (const char *dev, const char *dev_type);
-const char *dev_type_string (const char *dev, const char *dev_type);
-
-const char *ifconfig_options_string (const struct tuntap* tt, bool remote, bool disable, struct gc_arena *gc);
-
-/*
- * Inline functions
- */
-
-static inline void
-tun_adjust_frame_parameters (struct frame* frame, int size)
-{
- frame_add_to_extra_tun (frame, size);
-}
-
-/*
- * Should ifconfig be called before or after
- * tun dev open?
- */
-
-#define IFCONFIG_BEFORE_TUN_OPEN 0
-#define IFCONFIG_AFTER_TUN_OPEN 1
-
-#define IFCONFIG_DEFAULT IFCONFIG_AFTER_TUN_OPEN
-
-static inline int
-ifconfig_order(void)
-{
-#if defined(TARGET_LINUX)
- return IFCONFIG_AFTER_TUN_OPEN;
-#elif defined(TARGET_SOLARIS)
- return IFCONFIG_AFTER_TUN_OPEN;
-#elif defined(TARGET_OPENBSD)
- return IFCONFIG_BEFORE_TUN_OPEN;
-#elif defined(TARGET_DARWIN)
- return IFCONFIG_AFTER_TUN_OPEN;
-#elif defined(TARGET_NETBSD)
- return IFCONFIG_AFTER_TUN_OPEN;
-#elif defined(WIN32)
- return IFCONFIG_BEFORE_TUN_OPEN;
-#else
- return IFCONFIG_DEFAULT;
-#endif
-}
-
-#ifdef WIN32
-
-#define TUN_PASS_BUFFER
-
-struct tap_reg
-{
- const char *guid;
- struct tap_reg *next;
-};
-
-struct panel_reg
-{
- const char *name;
- const char *guid;
- struct panel_reg *next;
-};
-
-int ascii2ipset (const char* name);
-const char *ipset2ascii (int index);
-const char *ipset2ascii_all (struct gc_arena *gc);
-
-void verify_255_255_255_252 (in_addr_t local, in_addr_t remote);
-
-const IP_ADAPTER_INFO *get_adapter_info_list (struct gc_arena *gc);
-const IP_ADAPTER_INFO *get_tun_adapter (const struct tuntap *tt, const IP_ADAPTER_INFO *list);
-bool is_adapter_up (const struct tuntap *tt, const IP_ADAPTER_INFO *list);
-bool is_ip_in_adapter_subnet (const IP_ADAPTER_INFO *ai, const in_addr_t ip, in_addr_t *highest_netmask);
-DWORD adapter_index_of_ip (const IP_ADAPTER_INFO *list, const in_addr_t ip, int *count);
-
-void show_tap_win32_adapters (int msglev, int warnlev);
-void show_adapters (int msglev);
-
-void show_valid_win32_tun_subnets (void);
-const char *tap_win32_getinfo (const struct tuntap *tt, struct gc_arena *gc);
-void tun_show_debug (struct tuntap *tt);
-
-bool dhcp_release (const struct tuntap *tt);
-bool dhcp_renew (const struct tuntap *tt);
-
-int tun_read_queue (struct tuntap *tt, int maxsize);
-int tun_write_queue (struct tuntap *tt, struct buffer *buf);
-int tun_finalize (HANDLE h, struct overlapped_io *io, struct buffer *buf);
-
-const char *get_netsh_id (const char *dev_node, struct gc_arena *gc);
-
-static inline bool
-tuntap_stop (int status)
-{
- /*
- * This corresponds to the STATUS_NO_SUCH_DEVICE
- * error in tapdrvr.c.
- */
- if (status < 0)
- {
- return openvpn_errno () == ERROR_FILE_NOT_FOUND;
- }
- return false;
-}
-
-static inline int
-tun_write_win32 (struct tuntap *tt, struct buffer *buf)
-{
- int err = 0;
- int status = 0;
- if (overlapped_io_active (&tt->writes))
- {
- status = tun_finalize (tt->hand, &tt->writes, NULL);
- if (status < 0)
- err = GetLastError ();
- }
- tun_write_queue (tt, buf);
- if (status < 0)
- {
- SetLastError (err);
- return status;
- }
- else
- return BLEN (buf);
-}
-
-static inline int
-read_tun_buffered (struct tuntap *tt, struct buffer *buf, int maxsize)
-{
- return tun_finalize (tt->hand, &tt->reads, buf);
-}
-
-static inline int
-write_tun_buffered (struct tuntap *tt, struct buffer *buf)
-{
- return tun_write_win32 (tt, buf);
-}
-
-#else
-
-static inline bool
-tuntap_stop (int status)
-{
- return false;
-}
-
-#endif
-
-/*
- * TUN/TAP I/O wait functions
- */
-
-static inline event_t
-tun_event_handle (const struct tuntap *tt)
-{
-#ifdef WIN32
- return &tt->rw_handle;
-#else
- return tt->fd;
-#endif
-}
-
-static inline unsigned int
-tun_set (struct tuntap *tt,
- struct event_set *es,
- unsigned int rwflags,
- void *arg,
- unsigned int *persistent)
-{
- if (tuntap_defined (tt))
- {
- /* if persistent is defined, call event_ctl only if rwflags has changed since last call */
- if (!persistent || *persistent != rwflags)
- {
- event_ctl (es, tun_event_handle (tt), rwflags, arg);
- if (persistent)
- *persistent = rwflags;
- }
-#ifdef WIN32
- if (rwflags & EVENT_READ)
- tun_read_queue (tt, 0);
-#endif
- tt->rwflags_debug = rwflags;
- }
- return rwflags;
-}
-
-const char *tun_stat (const struct tuntap *tt, unsigned int rwflags, struct gc_arena *gc);
-
-#endif /* TUN_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-04 07:10:56 +0000