258 lines
10 KiB
C
258 lines
10 KiB
C
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/*
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* ZeroTier One - Network Virtualization Everywhere
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* Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/
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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 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 General Public License for more details.
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*
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* You should have received a copy of the GNU 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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* This defines the external C++ API for the ZeroTier SDK's service
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*/
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#ifndef ZT_ZEROTIERSDK_H
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#define ZT_ZEROTIERSDK_H
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#include <sys/socket.h>
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/****************************************************************************/
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/* Defines */
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/****************************************************************************/
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#define SDK_MTU 1200 //ZT_MAX_MTU // 2800, usually
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#define UNIX_SOCK_BUF_SIZE 1024*1024
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#define ZT_PHY_POLL_INTERVAL 50 // in ms
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// picoTCP
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#define MAX_PICO_FRAME_RX_BUF_SZ ZT_MAX_MTU * 128
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// TCP
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#define DEFAULT_TCP_TX_BUF_SZ 1024 * 1024
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#define DEFAULT_TCP_RX_BUF_SZ 1024 * 1024
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#define DEFAULT_TCP_TX_BUF_SOFTMAX DEFAULT_TCP_TX_BUF_SZ * 0.80
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#define DEFAULT_TCP_TX_BUF_SOFTMIN DEFAULT_TCP_TX_BUF_SZ * 0.20
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#define DEFAULT_TCP_RX_BUF_SOFTMAX DEFAULT_TCP_RX_BUF_SZ * 0.80
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#define DEFAULT_TCP_RX_BUF_SOFTMIN DEFAULT_TCP_RX_BUF_SZ * 0.20
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// UDP
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#define DEFAULT_UDP_TX_BUF_SZ ZT_MAX_MTU
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#define DEFAULT_UDP_RX_BUF_SZ ZT_MAX_MTU * 10
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/****************************************************************************/
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/* Socket API Signatures */
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/****************************************************************************/
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#define SETSOCKOPT_SIG int fd, int level, int optname, const void *optval, socklen_t optlen
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#define GETSOCKOPT_SIG int fd, int level, int optname, void *optval, socklen_t *optlen
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#define SENDMSG_SIG int fd, const struct msghdr *msg, int flags
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#define SENDTO_SIG int fd, const void *buf, size_t len, int flags, const struct sockaddr *addr, socklen_t addrlen
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#define RECV_SIG int fd, void *buf, size_t len, int flags
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#define RECVFROM_SIG int fd, void *buf, size_t len, int flags, struct sockaddr *addr, socklen_t *addrlen
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#define RECVMSG_SIG int fd, struct msghdr *msg,int flags
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#define SEND_SIG int fd, const void *buf, size_t len, int flags
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#define WRITE_SIG int fd, const void *buf, size_t len
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#define READ_SIG int fd, void *buf, size_t len
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#define SOCKET_SIG int socket_family, int socket_type, int protocol
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#define CONNECT_SIG int fd, const struct sockaddr *addr, socklen_t addrlen
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#define BIND_SIG int fd, const struct sockaddr *addr, socklen_t addrlen
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#define LISTEN_SIG int fd, int backlog
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#define ACCEPT4_SIG int fd, struct sockaddr *addr, socklen_t *addrlen, int flags
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#define ACCEPT_SIG int fd, struct sockaddr *addr, socklen_t *addrlen
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#define CLOSE_SIG int fd
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#define GETSOCKNAME_SIG int fd, struct sockaddr *addr, socklen_t *addrlen
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#define GETPEERNAME_SIG int fd, struct sockaddr *addr, socklen_t *addrlen
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#define FCNTL_SIG int fd, int cmd, int flags
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#define SYSCALL_SIG long number, ...
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/****************************************************************************/
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/* SDK Socket API */
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/****************************************************************************/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Start core ZeroTier service (generates identity)
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*/
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void zts_start(const char *path);
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void *zts_start_core_service(void *thread_id);
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char *zts_core_version();
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void zts_stop_service();
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void zts_stop();
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int zts_service_is_running();
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void zts_join_network(const char * nwid);
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void zts_join_network_soft(const char * filepath, const char * nwid);
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void zts_leave_network_soft(const char * filepath, const char * nwid);
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void zts_leave_network(const char * nwid);
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void zts_get_ipv4_address(const char *nwid, char *addrstr);
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void zts_get_ipv6_address(const char *nwid, char *addrstr);
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int zts_has_address(const char *nwid);
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int zts_get_device_id(char *devID);
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int zts_get_device_id_from_file(const char *filepath, char *devID);
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int zts_get_peer_address(char *peer, const char *devID);
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unsigned long zts_get_peer_count();
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//int zts_get_peer_list();
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char *zts_get_homepath();
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void zts_get_6plane_addr(char *addr, const char *nwid, const char *devID);
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void zts_get_rfc4193_addr(char *addr, const char *nwid, const char *devID);
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// BSD-like socket API
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int zts_socket(SOCKET_SIG);
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int zts_connect(CONNECT_SIG);
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int zts_bind(BIND_SIG);
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#if defined(__linux__)
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int zts_accept4(ACCEPT4_SIG);
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#endif
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int zts_accept(ACCEPT_SIG);
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int zts_listen(LISTEN_SIG);
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int zts_setsockopt(SETSOCKOPT_SIG);
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int zts_getsockopt(GETSOCKOPT_SIG);
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int zts_getsockname(GETSOCKNAME_SIG);
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int zts_getpeername(GETPEERNAME_SIG);
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int zts_close(CLOSE_SIG);
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int zts_fcntl(FCNTL_SIG);
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ssize_t zts_sendto(SENDTO_SIG);
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ssize_t zts_sendmsg(SENDMSG_SIG);
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ssize_t zts_recvfrom(RECVFROM_SIG);
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ssize_t zts_recvmsg(RECVMSG_SIG);
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/****************************************************************************/
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/* Debug */
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/****************************************************************************/
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#include <pthread.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#define DEBUG_LEVEL 5 // Set this to adjust what you'd like to see in the debug traces
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#define MSG_ERROR 1 // Errors
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#define MSG_TRANSFER 2 // RX/TX specific statements
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#define MSG_INFO 3 // Information which is generally useful to any developer
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#define MSG_EXTRA 4 // If nothing in your world makes sense
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#define MSG_FLOW 5 // High-level flow messages
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#define __SHOW_FILENAMES__ true
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#define __SHOW_COLOR__ true
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// Colors
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#if defined(__APPLE__)
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#include "TargetConditionals.h"
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#endif
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#if defined(__SHOW_COLOR__) && !defined(__ANDROID__) && !defined(TARGET_OS_IPHONE) && !defined(TARGET_IPHONE_SIMULATOR) && !defined(__APP_FRAMEWORK__)
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#define RED "\x1B[31m"
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#define GRN "\x1B[32m"
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#define YEL "\x1B[33m"
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#define BLU "\x1B[34m"
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#define MAG "\x1B[35m"
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#define CYN "\x1B[36m"
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#define WHT "\x1B[37m"
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#define RESET "\x1B[0m"
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#else
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#define RED
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#define GRN
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#define YEL
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#define BLU
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#define MAG
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#define CYN
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#define WHT
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#define RESET
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#endif
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// filenames
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#if __SHOW_FILENAMES__
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#if __SHOW_FULL_FILENAME_PATH__
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#define __FILENAME__ __FILE__ // show the entire mess
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#else
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#define __FILENAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__) // shorten
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#endif
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#else
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#define __FILENAME__ // omit filename
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#endif
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#ifdef __linux__
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#define THREAD_ID 0 /*(long)getpid()*/
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#elif __APPLE__
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#define THREAD_ID 0 /*(long)syscall(SYS_thread_selfid)*/
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#endif
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#if defined(__JNI_LIB__)
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#include <jni.h>
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#endif
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#if defined(__ANDROID__)
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#include <android/log.h>
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#define LOG_TAG "ZTSDK"
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#endif
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#if DEBUG_LEVEL >= MSG_ERROR
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#define DEBUG_ERROR(fmt, args...) fprintf(stderr, RED "ZT_ERROR[%ld] : %14s:%4d:%25s: " fmt "\n" RESET, THREAD_ID, __FILENAME__, __LINE__, __FUNCTION__, ##args)
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#else
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#define DEBUG_ERROR(fmt, args...)
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#endif
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#if DEBUG_LEVEL >= MSG_INFO
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#if defined(__ANDROID__)
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#define DEBUG_INFO(fmt, args...) ((void)__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "ZT_INFO : %14s:%4d:%20s: " fmt "\n", __FILENAME__, __LINE__, __FUNCTION__, ##args))
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#define DEBUG_BLANK(fmt, args...) ((void)__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "ZT_INFO : %14s:%4d:" fmt "\n", __FILENAME__, __LINE__, __FUNCTION__, ##args))
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#define DEBUG_ATTN(fmt, args...) ((void)__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "ZT_INFO : %14s:%4d:%25s: " fmt "\n", __FILENAME__, __LINE__, __FUNCTION__, ##args))
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#define DEBUG_STACK(fmt, args...) ((void)__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "ZT_STACK: %14s:%4d:%25s: " fmt "\n", __FILENAME__, __LINE__, __FUNCTION__, ##args))
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#else
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#define DEBUG_INFO(fmt, args...) fprintf(stderr, "ZT_INFO [%ld] : %14s:%4d:%25s: " fmt "\n", THREAD_ID, __FILENAME__, __LINE__, __FUNCTION__, ##args)
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#define DEBUG_ATTN(fmt, args...) fprintf(stderr, CYN "ZT_ATTN [%ld] : %14s:%4d:%25s: " fmt "\n" RESET, THREAD_ID, __FILENAME__, __LINE__, __FUNCTION__, ##args)
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#define DEBUG_STACK(fmt, args...) fprintf(stderr, YEL "ZT_STACK[%ld] : %14s:%4d:%25s: " fmt "\n" RESET, THREAD_ID, __FILENAME__, __LINE__, __FUNCTION__, ##args)
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#define DEBUG_BLANK(fmt, args...) fprintf(stderr, "ZT_INFO [%ld] : %14s:%4d:" fmt "\n", THREAD_ID, __FILENAME__, __LINE__, ##args)
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#endif
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#else
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#define DEBUG_INFO(fmt, args...)
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#define DEBUG_BLANK(fmt, args...)
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#define DEBUG_ATTN(fmt, args...)
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#define DEBUG_STACK(fmt, args...)
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#endif
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#if DEBUG_LEVEL >= MSG_TRANSFER
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#if defined(__ANDROID__)
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#define DEBUG_TRANS(fmt, args...) ((void)__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "ZT_TRANS : %14s:%4d:%25s: " fmt "\n", __FILENAME__, __LINE__, __FUNCTION__, ##args))
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#else
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#define DEBUG_TRANS(fmt, args...) fprintf(stderr, GRN "ZT_TRANS[%ld] : %14s:%4d:%25s: " fmt "\n" RESET, THREAD_ID, __FILENAME__, __LINE__, __FUNCTION__, ##args)
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#endif
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#else
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#define DEBUG_TRANS(fmt, args...)
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#endif
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#if DEBUG_LEVEL >= MSG_EXTRA
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#if defined(__ANDROID__)
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#define DEBUG_EXTRA(fmt, args...) ((void)__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "ZT_EXTRA : %14s:%4d:%25s: " fmt "\n", __FILENAME__, __LINE__, __FUNCTION__, ##args))
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#else
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#define DEBUG_EXTRA(fmt, args...) fprintf(stderr, "ZT_EXTRA[%ld] : %14s:%4d:%25s: " fmt "\n", THREAD_ID, __FILENAME__, __LINE__, __FUNCTION__, ##args)
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#endif
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#else
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#define DEBUG_EXTRA(fmt, args...)
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#endif
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#if DEBUG_LEVEL >= MSG_FLOW
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#if defined(__ANDROID__)
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#define DEBUG_FLOW(fmt, args...) ((void)__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "ZT_FLOW : %14s:%4d:%25s: " fmt "\n", __FILENAME__, __LINE__, __FUNCTION__, ##args))
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#else
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#define DEBUG_FLOW(fmt, args...) fprintf(stderr, "ZT_FLOW [%ld] : %14s:%4d:%25s: " fmt "\n", THREAD_ID, __FILENAME__, __LINE__, __FUNCTION__, ##args)
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#endif
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#else
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#define DEBUG_FLOW(fmt, args...)
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#endif
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // ZT_ZEROTIERSDK_H
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