mirror of https://github.com/oxen-io/lokinet
more boilerplate and enable tun/tap build
Jeff Becker
6 years ago
parent
c71d0b2bb3
commit
d5532e4de4
@ -1,18 +0,0 @@
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#ifndef LLARP_ENDPOINT_HANDLER_HPP
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#define LLARP_ENDPOINT_HANDLER_HPP
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#include <llarp/buffer.h>
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namespace llarp
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{
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// hidden service endpoint handler
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struct IEndpointHandler
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{
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~IEndpointHandler(){};
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virtual void
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HandleMessage(llarp_buffer_t buf) = 0;
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};
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} // namespace llarp
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#endif
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@ -0,0 +1,15 @@
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#ifndef LLARP_HANDLERS_TUN_HPP
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#define LLARP_HANDLERS_TUN_HPP
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#include <llarp/service/handler.hpp>
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namespace llarp
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{
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namespace handlers
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{
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struct TunHandler : public service::IDataHandler
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{
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};
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} // namespace handlers
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} // namespace llarp
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#endif
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@ -0,0 +1,17 @@
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#ifndef LLARP_SERVICE_HANDLER_HPP
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#define LLARP_SERVICE_HANDLER_HPP
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#include <llarp/service/protocol.hpp>
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namespace llarp
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{
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namespace service
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{
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struct IDataHandler
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{
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virtual void
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HandleDataMessage(ProtocolMessage* msg) = 0;
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};
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} // namespace service
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} // namespace llarp
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#endif
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@ -0,0 +1,20 @@
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#ifndef LLARP_SERVICE_TUN_HPP
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#define LLARP_SERVICE_TUN_HPP
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#include <tuntap.h>
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#include <llarp/service/endpoint.hpp>
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namespace llarp
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{
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namespace service
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{
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struct TunEndpoint : public Endpoint
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{
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TunEndpoint(const std::string& ifname, llarp_router* r);
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~TunEndpoint();
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device* m_tunif;
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};
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} // namespace service
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} // namespace llarp
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#endif
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@ -0,0 +1,252 @@
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/*
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* Copyright (c) 2012 Tristan Le Guern <leguern AT medu DOT se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* Copyright (c) 2016 Mahdi Mokhtari <mokhi64@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#if defined Windows
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#include <In6addr.h>
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#else /* Unix */
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#include <sys/socket.h>
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#endif
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#if !defined Windows /* Unix :) */
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#if defined Linux
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#include <linux/if.h>
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#else
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#include <net/if.h>
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#endif
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#include <netinet/if_ether.h>
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#include <netinet/in.h>
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#endif
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#include <stdint.h>
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#ifndef LIBTUNTAP_H_
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#define LIBTUNTAP_H_
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/*
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* Uniformize macros
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* - ETHER_ADDR_LEN: Magic number from IEEE 802.3
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* - IF_NAMESIZE: Length of interface external name
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* - IF_DESCRSIZE: Length of interface description
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* - TUNSDEBUG: ioctl flag to enable the debug mode of a tun device
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* - TUNFD_INVALID_VALUE: Invalid value for tun_fd
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*/
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#if defined ETH_ALEN /* Linux */
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#define ETHER_ADDR_LEN ETH_ALEN
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#elif defined Windows
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#define ETHER_ADDR_LEN 6
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#endif
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#if defined IFNAMSIZ && !defined IF_NAMESIZE
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#define IF_NAMESIZE IFNAMSIZ /* Historical BSD name */
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#elif !defined IF_NAMESIZE
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#define IF_NAMESIZE 16
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#endif
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#define IF_DESCRSIZE 50 /* XXX: Tests needed on NetBSD and OpenBSD */
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#if defined TUNSETDEBUG
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#define TUNSDEBUG TUNSETDEBUG
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#endif
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#if defined Windows
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#define TUNFD_INVALID_VALUE INVALID_HANDLE_VALUE
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#else /* Unix */
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#define TUNFD_INVALID_VALUE -1
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#endif
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/*
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* Uniformize types
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* - t_tun: tun device file descriptor
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* - t_tun_in_addr: struct in_addr/IN_ADDR
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* - t_tun_in6_addr: struct in6_addr/IN6_ADDR
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*/
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#if defined Windows
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typedef HANDLE t_tun;
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typedef IN_ADDR t_tun_in_addr;
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typedef IN6_ADDR t_tun_in6_addr;
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#else /* Unix */
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typedef int t_tun;
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typedef struct in_addr t_tun_in_addr;
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typedef struct in6_addr t_tun_in6_addr;
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#endif
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/*
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* Windows helpers
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*/
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#if defined Windows
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#define snprintf(x, y, z, ...) _snprintf_s((x), (y), (y), (z), __VA_ARGS__);
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#define strncat(x, y, z) strncat_s((x), _countof(x), (y), (z));
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#define strdup(x) _strdup(x)
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#endif
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#define TUNTAP_ID_MAX 256
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#define TUNTAP_ID_ANY 257
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#define TUNTAP_MODE_ETHERNET 0x0001
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#define TUNTAP_MODE_TUNNEL 0x0002
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#define TUNTAP_MODE_PERSIST 0x0004
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#define TUNTAP_LOG_NONE 0x0000
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#define TUNTAP_LOG_DEBUG 0x0001
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#define TUNTAP_LOG_INFO 0x0002
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#define TUNTAP_LOG_NOTICE 0x0004
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#define TUNTAP_LOG_WARN 0x0008
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#define TUNTAP_LOG_ERR 0x0016
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/* Versioning: 0xMMmm, with 'M' for major and 'm' for minor */
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#define TUNTAP_VERSION_MAJOR 0
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#define TUNTAP_VERSION_MINOR 3
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#define TUNTAP_VERSION ((TUNTAP_VERSION_MAJOR << 8) | TUNTAP_VERSION_MINOR)
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#define TUNTAP_GET_FD(x) (x)->tun_fd
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/* Handle Windows symbols export */
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#if defined Windows
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#if defined(tuntap_EXPORTS) /* CMake generated goo */
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#define TUNTAP_EXPORT __declspec(dllexport)
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#else
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#define TUNTAP_EXPORT __declspec(dllimport)
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#endif
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#else /* Unix */
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#define TUNTAP_EXPORT extern
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#endif
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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struct device
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{
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t_tun tun_fd;
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int ctrl_sock;
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int flags; /* ifr.ifr_flags on Unix */
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unsigned char hwaddr[ETHER_ADDR_LEN];
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char if_name[IF_NAMESIZE];
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#if defined(FreeBSD)
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int mode;
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#endif
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};
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/* User definable log callback */
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typedef void (*t_tuntap_log)(int, const char *);
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TUNTAP_EXPORT t_tuntap_log tuntap_log;
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/* Portable "public" functions */
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TUNTAP_EXPORT struct device *
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tuntap_init(void);
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TUNTAP_EXPORT int
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tuntap_version(void);
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TUNTAP_EXPORT void
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tuntap_destroy(struct device *);
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TUNTAP_EXPORT void
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tuntap_release(struct device *);
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TUNTAP_EXPORT int
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tuntap_start(struct device *, int, int);
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TUNTAP_EXPORT char *
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tuntap_get_ifname(struct device *);
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TUNTAP_EXPORT int
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tuntap_set_ifname(struct device *, const char *);
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TUNTAP_EXPORT char *
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tuntap_get_hwaddr(struct device *);
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TUNTAP_EXPORT int
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tuntap_set_hwaddr(struct device *, const char *);
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TUNTAP_EXPORT int
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tuntap_set_descr(struct device *, const char *);
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TUNTAP_EXPORT int
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tuntap_up(struct device *);
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TUNTAP_EXPORT int
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tuntap_down(struct device *);
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TUNTAP_EXPORT int
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tuntap_get_mtu(struct device *);
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TUNTAP_EXPORT int
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tuntap_set_mtu(struct device *, int);
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/*
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* It's impossible to set single IP for `tun` devices on FreeBSD .
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* FreeBSD's `tun` interface needs 2 IP addresses.
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* So a new (and backward compatible) version of tuntap_set_ip() is
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* implemented.
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*/
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TUNTAP_EXPORT int
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tuntap_set_ip(struct device *, ...);
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// TUNTAP_EXPORT int tuntap_set_ip_old(struct device *, const char
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// *, int);
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/*TUNTAP_EXPORT int tuntap_set_ip_old(struct device *, const char
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* *, int);*/
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TUNTAP_EXPORT int
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tuntap_read(struct device *, void *, size_t);
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TUNTAP_EXPORT int
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tuntap_write(struct device *, void *, size_t);
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TUNTAP_EXPORT int
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tuntap_get_readable(struct device *);
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TUNTAP_EXPORT int
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tuntap_set_nonblocking(struct device *dev, int);
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TUNTAP_EXPORT int
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tuntap_set_debug(struct device *dev, int);
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/* Logging functions */
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TUNTAP_EXPORT void
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tuntap_log_set_cb(t_tuntap_log cb);
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void
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tuntap_log_default(int, const char *);
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void
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tuntap_log_hexdump(void *, size_t);
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void
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tuntap_log_chksum(void *, int);
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/* OS specific functions */
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int
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tuntap_sys_start(struct device *, int, int);
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void
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tuntap_sys_destroy(struct device *);
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int
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tuntap_sys_set_hwaddr(struct device *, struct ether_addr *);
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int
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tuntap_sys_set_ipv4(struct device *, t_tun_in_addr *, uint32_t);
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#if defined(FreeBSD)
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int
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tuntap_sys_set_ipv4_tap(struct device *, t_tun_in_addr *, uint32_t);
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int
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tuntap_sys_set_ipv4_tun(struct device *dev, t_tun_in_addr *s4,
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t_tun_in_addr *s4dest, uint32_t bits);
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#endif
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int
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tuntap_sys_set_ipv6(struct device *, t_tun_in6_addr *, uint32_t);
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int
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tuntap_sys_set_ifname(struct device *, const char *, size_t);
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int
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tuntap_sys_set_descr(struct device *, const char *, size_t);
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#ifdef __cplusplus
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}
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#endif
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#endif
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@ -0,0 +1,14 @@
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#include <llarp/service/tun.hpp>
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namespace llarp
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{
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namespace service
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{
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TunEndpoint::TunEndpoint(const std::string& ifname, llarp_router* r)
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: Endpoint("tun-" + ifname, r)
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{
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m_tunif = tuntap_init();
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tuntap_set_ifname(m_tunif, ifname.c_str());
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}
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} // namespace service
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} // namespace llarp
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@ -1,213 +0,0 @@
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/*
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* Copyright (c) 2012 Tristan Le Guern <leguern AT medu DOT se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
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* Copyright (c) 2016 Mahdi Mokhtari <mokhi64@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#if defined Windows
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# include <In6addr.h>
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#else /* Unix */
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# include <sys/socket.h>
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#endif
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#if !defined Windows /* Unix :) */
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# if defined Linux
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# include <linux/if.h>
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# else
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# include <net/if.h>
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# endif
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# include <netinet/in.h>
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# include <netinet/if_ether.h>
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#endif
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#include <stdint.h>
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#ifndef LIBTUNTAP_H_
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# define LIBTUNTAP_H_
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/*
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* Uniformize macros
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* - ETHER_ADDR_LEN: Magic number from IEEE 802.3
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* - IF_NAMESIZE: Length of interface external name
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* - IF_DESCRSIZE: Length of interface description
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* - TUNSDEBUG: ioctl flag to enable the debug mode of a tun device
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* - TUNFD_INVALID_VALUE: Invalid value for tun_fd
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*/
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# if defined ETH_ALEN /* Linux */
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# define ETHER_ADDR_LEN ETH_ALEN
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# elif defined Windows
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# define ETHER_ADDR_LEN 6
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# endif
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# if defined IFNAMSIZ && !defined IF_NAMESIZE
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# define IF_NAMESIZE IFNAMSIZ /* Historical BSD name */
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# elif !defined IF_NAMESIZE
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# define IF_NAMESIZE 16
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# endif
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# define IF_DESCRSIZE 50 /* XXX: Tests needed on NetBSD and OpenBSD */
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# if defined TUNSETDEBUG
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# define TUNSDEBUG TUNSETDEBUG
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# endif
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# if defined Windows
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# define TUNFD_INVALID_VALUE INVALID_HANDLE_VALUE
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# else /* Unix */
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# define TUNFD_INVALID_VALUE -1
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# endif
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/*
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* Uniformize types
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* - t_tun: tun device file descriptor
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* - t_tun_in_addr: struct in_addr/IN_ADDR
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* - t_tun_in6_addr: struct in6_addr/IN6_ADDR
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*/
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# if defined Windows
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typedef HANDLE t_tun;
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typedef IN_ADDR t_tun_in_addr;
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typedef IN6_ADDR t_tun_in6_addr;
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# else /* Unix */
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typedef int t_tun;
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typedef struct in_addr t_tun_in_addr;
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typedef struct in6_addr t_tun_in6_addr;
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# endif
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/*
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* Windows helpers
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*/
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# if defined Windows
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# define snprintf(x, y, z, ...) _snprintf_s((x), (y), (y), (z), __VA_ARGS__);
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# define strncat(x, y, z) strncat_s((x), _countof(x), (y), (z));
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# define strdup(x) _strdup(x)
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# endif
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# define TUNTAP_ID_MAX 256
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# define TUNTAP_ID_ANY 257
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# define TUNTAP_MODE_ETHERNET 0x0001
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# define TUNTAP_MODE_TUNNEL 0x0002
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# define TUNTAP_MODE_PERSIST 0x0004
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# define TUNTAP_LOG_NONE 0x0000
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# define TUNTAP_LOG_DEBUG 0x0001
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# define TUNTAP_LOG_INFO 0x0002
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# define TUNTAP_LOG_NOTICE 0x0004
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# define TUNTAP_LOG_WARN 0x0008
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# define TUNTAP_LOG_ERR 0x0016
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/* Versioning: 0xMMmm, with 'M' for major and 'm' for minor */
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# define TUNTAP_VERSION_MAJOR 0
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# define TUNTAP_VERSION_MINOR 3
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# define TUNTAP_VERSION ((TUNTAP_VERSION_MAJOR<<8)|TUNTAP_VERSION_MINOR)
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# define TUNTAP_GET_FD(x) (x)->tun_fd
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/* Handle Windows symbols export */
|
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# if defined Windows
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# if defined(tuntap_EXPORTS) /* CMake generated goo */
|
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# define TUNTAP_EXPORT __declspec(dllexport)
|
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# else
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# define TUNTAP_EXPORT __declspec(dllimport)
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# endif
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# else /* Unix */
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# define TUNTAP_EXPORT
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# endif
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# ifdef __cplusplus
|
||||
extern "C" {
|
||||
# endif
|
||||
|
||||
struct device {
|
||||
t_tun tun_fd;
|
||||
int ctrl_sock;
|
||||
int flags; /* ifr.ifr_flags on Unix */
|
||||
unsigned char hwaddr[ETHER_ADDR_LEN];
|
||||
char if_name[IF_NAMESIZE];
|
||||
#if defined(FreeBSD)
|
||||
int mode;
|
||||
#endif
|
||||
};
|
||||
|
||||
/* User definable log callback */
|
||||
typedef void (*t_tuntap_log)(int, const char *);
|
||||
TUNTAP_EXPORT t_tuntap_log tuntap_log;
|
||||
|
||||
/* Portable "public" functions */
|
||||
TUNTAP_EXPORT struct device *tuntap_init(void);
|
||||
TUNTAP_EXPORT int tuntap_version(void);
|
||||
TUNTAP_EXPORT void tuntap_destroy(struct device *);
|
||||
TUNTAP_EXPORT void tuntap_release(struct device *);
|
||||
TUNTAP_EXPORT int tuntap_start(struct device *, int, int);
|
||||
TUNTAP_EXPORT char *tuntap_get_ifname(struct device *);
|
||||
TUNTAP_EXPORT int tuntap_set_ifname(struct device *, const char *);
|
||||
TUNTAP_EXPORT char *tuntap_get_hwaddr(struct device *);
|
||||
TUNTAP_EXPORT int tuntap_set_hwaddr(struct device *, const char *);
|
||||
TUNTAP_EXPORT int tuntap_set_descr(struct device *, const char *);
|
||||
TUNTAP_EXPORT int tuntap_up(struct device *);
|
||||
TUNTAP_EXPORT int tuntap_down(struct device *);
|
||||
TUNTAP_EXPORT int tuntap_get_mtu(struct device *);
|
||||
TUNTAP_EXPORT int tuntap_set_mtu(struct device *, int);
|
||||
|
||||
/*
|
||||
* It's impossible to set single IP for `tun` devices on FreeBSD .
|
||||
* FreeBSD's `tun` interface needs 2 IP addresses.
|
||||
* So a new (and backward compatible) version of tuntap_set_ip() is implemented.
|
||||
*/
|
||||
TUNTAP_EXPORT int tuntap_set_ip(struct device *, ...);
|
||||
//TUNTAP_EXPORT int tuntap_set_ip_old(struct device *, const char *, int);
|
||||
/*TUNTAP_EXPORT int tuntap_set_ip_old(struct device *, const char *, int);*/
|
||||
TUNTAP_EXPORT int tuntap_read(struct device *, void *, size_t);
|
||||
TUNTAP_EXPORT int tuntap_write(struct device *, void *, size_t);
|
||||
TUNTAP_EXPORT int tuntap_get_readable(struct device *);
|
||||
TUNTAP_EXPORT int tuntap_set_nonblocking(struct device *dev, int);
|
||||
TUNTAP_EXPORT int tuntap_set_debug(struct device *dev, int);
|
||||
|
||||
/* Logging functions */
|
||||
TUNTAP_EXPORT void tuntap_log_set_cb(t_tuntap_log cb);
|
||||
void tuntap_log_default(int, const char *);
|
||||
void tuntap_log_hexdump(void *, size_t);
|
||||
void tuntap_log_chksum(void *, int);
|
||||
|
||||
/* OS specific functions */
|
||||
int tuntap_sys_start(struct device *, int, int);
|
||||
void tuntap_sys_destroy(struct device *);
|
||||
int tuntap_sys_set_hwaddr(struct device *, struct ether_addr *);
|
||||
int tuntap_sys_set_ipv4(struct device *, t_tun_in_addr *, uint32_t);
|
||||
|
||||
#if defined(FreeBSD)
|
||||
int tuntap_sys_set_ipv4_tap(struct device *, t_tun_in_addr *, uint32_t);
|
||||
int tuntap_sys_set_ipv4_tun(struct device *dev, t_tun_in_addr *s4, t_tun_in_addr *s4dest, uint32_t bits);
|
||||
#endif
|
||||
|
||||
int tuntap_sys_set_ipv6(struct device *, t_tun_in6_addr *, uint32_t);
|
||||
int tuntap_sys_set_ifname(struct device *, const char *, size_t);
|
||||
int tuntap_sys_set_descr(struct device *, const char *, size_t);
|
||||
|
||||
# ifdef __cplusplus
|
||||
}
|
||||
# endif
|
||||
|
||||
#endif
|
||||
@ -1,163 +0,0 @@
|
||||
/**
|
||||
* Copyright (c) 2012, PICHOT Fabien Paul Leonard <pichot.fabienATgmail.com>
|
||||
* Copyright (c) 2012, Tristan Le Guern <tleguern@bouledef.eu>
|
||||
*
|
||||
* Permission to use, copy, modify, and/or distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
|
||||
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
||||
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
|
||||
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
||||
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
|
||||
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
||||
* PERFORMANCE OF THIS SOFTWARE.
|
||||
**/
|
||||
|
||||
#if defined Windows
|
||||
#include <windows.h>
|
||||
#endif
|
||||
#include <ctype.h>
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "tuntap.h"
|
||||
|
||||
void
|
||||
tuntap_log_set_cb(t_tuntap_log cb)
|
||||
{
|
||||
if(cb == NULL)
|
||||
{
|
||||
tuntap_log = tuntap_log_default;
|
||||
}
|
||||
tuntap_log = cb;
|
||||
}
|
||||
|
||||
void
|
||||
tuntap_log_default(int level, const char *errmsg)
|
||||
{
|
||||
char *name;
|
||||
|
||||
switch(level)
|
||||
{
|
||||
case TUNTAP_LOG_DEBUG:
|
||||
name = "Debug";
|
||||
break;
|
||||
case TUNTAP_LOG_INFO:
|
||||
name = "Info";
|
||||
break;
|
||||
case TUNTAP_LOG_NOTICE:
|
||||
name = "Notice";
|
||||
break;
|
||||
case TUNTAP_LOG_WARN:
|
||||
name = "Warning";
|
||||
break;
|
||||
case TUNTAP_LOG_ERR:
|
||||
name = "Error";
|
||||
break;
|
||||
case TUNTAP_LOG_NONE:
|
||||
default:
|
||||
name = NULL;
|
||||
break;
|
||||
}
|
||||
if(name == NULL)
|
||||
{
|
||||
(void)fprintf(stderr, "%s\n", errmsg);
|
||||
}
|
||||
else
|
||||
{
|
||||
(void)fprintf(stderr, "%s: %s\n", name, errmsg);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tuntap_log_hexdump(void *data, size_t size)
|
||||
{
|
||||
unsigned char *p = (unsigned char *)data;
|
||||
unsigned int c;
|
||||
size_t n;
|
||||
char bytestr[4] = {0};
|
||||
char addrstr[10] = {0};
|
||||
char hexstr[16 * 3 + 5] = {0};
|
||||
char charstr[16 * 1 + 5] = {0};
|
||||
char buf[1024];
|
||||
|
||||
for(n = 1; n <= size; n++)
|
||||
{
|
||||
if(n % 16 == 1)
|
||||
{
|
||||
/* store address for this line */
|
||||
snprintf(addrstr, sizeof(addrstr), "%.4lx",
|
||||
((uintptr_t)p - (uintptr_t)data));
|
||||
}
|
||||
|
||||
c = *p;
|
||||
if(isalnum(c) == 0)
|
||||
{
|
||||
c = '.';
|
||||
}
|
||||
|
||||
/* store hex str (for left side) */
|
||||
snprintf(bytestr, sizeof(bytestr), "%02X ", *p);
|
||||
strncat(hexstr, bytestr, sizeof(hexstr) - strlen(hexstr) - 1);
|
||||
|
||||
/* store char str (for right side) */
|
||||
snprintf(bytestr, sizeof(bytestr), "%c", c);
|
||||
strncat(charstr, bytestr, sizeof(charstr) - strlen(charstr) - 1);
|
||||
|
||||
if(n % 16 == 0)
|
||||
{
|
||||
/* line completed */
|
||||
(void)memset(buf, 0, sizeof buf);
|
||||
(void)snprintf(buf, sizeof buf, "[%4.4s] %-50.50s %s", addrstr, hexstr,
|
||||
charstr);
|
||||
tuntap_log(TUNTAP_LOG_NONE, buf);
|
||||
hexstr[0] = 0;
|
||||
charstr[0] = 0;
|
||||
}
|
||||
else if(n % 8 == 0)
|
||||
{
|
||||
/* half line: add whitespaces */
|
||||
strncat(hexstr, " ", sizeof(hexstr) - strlen(hexstr) - 1);
|
||||
strncat(charstr, " ", sizeof(charstr) - strlen(charstr) - 1);
|
||||
}
|
||||
p++; /* next byte */
|
||||
}
|
||||
|
||||
/* print the rest of the buffer if not empty */
|
||||
if(strlen(hexstr) > 0)
|
||||
{
|
||||
(void)memset(buf, 0, sizeof buf);
|
||||
(void)snprintf(buf, sizeof buf, "[%4.4s] %-50.50s %s", addrstr, hexstr,
|
||||
charstr);
|
||||
tuntap_log(TUNTAP_LOG_NONE, buf);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tuntap_log_chksum(void *addr, int count)
|
||||
{
|
||||
int sum;
|
||||
short *sptr;
|
||||
char buf[32];
|
||||
|
||||
sum = 0;
|
||||
sptr = (short *)addr;
|
||||
while(count > 1)
|
||||
{
|
||||
sum = sum + *sptr;
|
||||
count = count - 2;
|
||||
sptr++;
|
||||
}
|
||||
|
||||
addr = (char *)sptr;
|
||||
if(count > 0)
|
||||
sum = sum + *((char *)addr);
|
||||
sum = ~sum;
|
||||
|
||||
(void)memset(buf, 0, sizeof buf);
|
||||
(void)snprintf(buf, sizeof buf, "Checksum of this block: %0#4x", sum);
|
||||
tuntap_log(TUNTAP_LOG_NONE, buf);
|
||||
}
|
||||
@ -0,0 +1,156 @@
|
||||
/**
|
||||
* Copyright (c) 2012, PICHOT Fabien Paul Leonard <pichot.fabienATgmail.com>
|
||||
* Copyright (c) 2012, Tristan Le Guern <tleguern@bouledef.eu>
|
||||
*
|
||||
* Permission to use, copy, modify, and/or distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
|
||||
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
||||
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
|
||||
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
||||
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
|
||||
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
||||
* PERFORMANCE OF THIS SOFTWARE.
|
||||
**/
|
||||
|
||||
#if defined Windows
|
||||
#include <windows.h>
|
||||
#endif
|
||||
#include <ctype.h>
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <llarp/logger.hpp>
|
||||
#include "tuntap.h"
|
||||
|
||||
extern "C"
|
||||
{
|
||||
void
|
||||
tuntap_log_set_cb(t_tuntap_log cb)
|
||||
{
|
||||
if(cb == NULL)
|
||||
{
|
||||
tuntap_log = tuntap_log_default;
|
||||
}
|
||||
tuntap_log = cb;
|
||||
}
|
||||
|
||||
void
|
||||
tuntap_log_default(int level, const char *errmsg)
|
||||
{
|
||||
switch(level)
|
||||
{
|
||||
case TUNTAP_LOG_DEBUG:
|
||||
llarp::LogDebug(errmsg);
|
||||
break;
|
||||
case TUNTAP_LOG_INFO:
|
||||
llarp::LogInfo(errmsg);
|
||||
break;
|
||||
case TUNTAP_LOG_NOTICE:
|
||||
llarp::LogInfo(errmsg);
|
||||
break;
|
||||
case TUNTAP_LOG_WARN:
|
||||
llarp::LogWarn(errmsg);
|
||||
break;
|
||||
case TUNTAP_LOG_ERR:
|
||||
llarp::LogError(errmsg);
|
||||
break;
|
||||
case TUNTAP_LOG_NONE:
|
||||
default:
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tuntap_log_hexdump(void *data, size_t size)
|
||||
{
|
||||
unsigned char *p = (unsigned char *)data;
|
||||
unsigned int c;
|
||||
size_t n;
|
||||
char bytestr[4] = {0};
|
||||
char addrstr[10] = {0};
|
||||
char hexstr[16 * 3 + 5] = {0};
|
||||
char charstr[16 * 1 + 5] = {0};
|
||||
char buf[1024];
|
||||
|
||||
for(n = 1; n <= size; n++)
|
||||
{
|
||||
if(n % 16 == 1)
|
||||
{
|
||||
/* store address for this line */
|
||||
snprintf(addrstr, sizeof(addrstr), "%.4lx",
|
||||
((uintptr_t)p - (uintptr_t)data));
|
||||
}
|
||||
|
||||
c = *p;
|
||||
if(isalnum(c) == 0)
|
||||
{
|
||||
c = '.';
|
||||
}
|
||||
|
||||
/* store hex str (for left side) */
|
||||
snprintf(bytestr, sizeof(bytestr), "%02X ", *p);
|
||||
strncat(hexstr, bytestr, sizeof(hexstr) - strlen(hexstr) - 1);
|
||||
|
||||
/* store char str (for right side) */
|
||||
snprintf(bytestr, sizeof(bytestr), "%c", c);
|
||||
strncat(charstr, bytestr, sizeof(charstr) - strlen(charstr) - 1);
|
||||
|
||||
if(n % 16 == 0)
|
||||
{
|
||||
/* line completed */
|
||||
(void)memset(buf, 0, sizeof buf);
|
||||
(void)snprintf(buf, sizeof buf, "[%4.4s] %-50.50s %s", addrstr,
|
||||
hexstr, charstr);
|
||||
tuntap_log(TUNTAP_LOG_NONE, buf);
|
||||
hexstr[0] = 0;
|
||||
charstr[0] = 0;
|
||||
}
|
||||
else if(n % 8 == 0)
|
||||
{
|
||||
/* half line: add whitespaces */
|
||||
strncat(hexstr, " ", sizeof(hexstr) - strlen(hexstr) - 1);
|
||||
strncat(charstr, " ", sizeof(charstr) - strlen(charstr) - 1);
|
||||
}
|
||||
p++; /* next byte */
|
||||
}
|
||||
|
||||
/* print the rest of the buffer if not empty */
|
||||
if(strlen(hexstr) > 0)
|
||||
{
|
||||
(void)memset(buf, 0, sizeof buf);
|
||||
(void)snprintf(buf, sizeof buf, "[%4.4s] %-50.50s %s", addrstr, hexstr,
|
||||
charstr);
|
||||
tuntap_log(TUNTAP_LOG_NONE, buf);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tuntap_log_chksum(void *addr, int count)
|
||||
{
|
||||
int sum;
|
||||
short *sptr;
|
||||
char buf[32];
|
||||
|
||||
sum = 0;
|
||||
sptr = (short *)addr;
|
||||
while(count > 1)
|
||||
{
|
||||
sum = sum + *sptr;
|
||||
count = count - 2;
|
||||
sptr++;
|
||||
}
|
||||
|
||||
addr = (char *)sptr;
|
||||
if(count > 0)
|
||||
sum = sum + *((char *)addr);
|
||||
sum = ~sum;
|
||||
|
||||
(void)memset(buf, 0, sizeof buf);
|
||||
(void)snprintf(buf, sizeof buf, "Checksum of this block: %0#4x", sum);
|
||||
tuntap_log(TUNTAP_LOG_NONE, buf);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue