223 lines
8.0 KiB
C++
223 lines
8.0 KiB
C++
/*
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* ZeroTier SDK - Network Virtualization Everywhere
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* Copyright (C) 2011-2017 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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*
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* You can be released from the requirements of the license by purchasing
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* a commercial license. Buying such a license is mandatory as soon as you
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* develop commercial closed-source software that incorporates or links
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* directly against ZeroTier software without disclosing the source code
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* of your own application.
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*/
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#ifndef ZT_PICOTCP_HPP
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#define ZT_PICOTCP_HPP
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/*
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#include "pico_eth.h"
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#include "pico_stack.h"
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#include "pico_ipv4.h"
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#include "pico_icmp4.h"
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#include "pico_dev_tap.h"
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#include "pico_protocol.h"
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#include "pico_socket.h"
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#include "pico_device.h"
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#include "pico_ipv6.h"
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*/
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struct pico_socket;
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class VirtualSocket;
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class VirtualTap;
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#include "VirtualTap.h"
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/****************************************************************************/
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/* PicoTCP API Signatures (See libzt.h for the application-facing API) */
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/****************************************************************************/
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#define PICO_IPV4_TO_STRING_SIG char *ipbuf, const uint32_t ip
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#define PICO_TAP_CREATE_SIG char *name
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#define PICO_IPV4_LINK_ADD_SIG struct pico_device *dev, struct pico_ip4 address, struct pico_ip4 netmask
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#define PICO_DEVICE_INIT_SIG struct pico_device *dev, const char *name, uint8_t *mac
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#define PICO_STACK_RECV_SIG struct pico_device *dev, uint8_t *buffer, uint32_t len
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#define PICO_ICMP4_PING_SIG char *dst, int count, int interval, int timeout, int size, void (*cb)(struct pico_icmp4_stats *)
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#define PICO_TIMER_ADD_SIG pico_time expire, void (*timer)(pico_time, void *), void *arg
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#define PICO_STRING_TO_IPV4_SIG const char *ipstr, uint32_t *ip
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#define PICO_STRING_TO_IPV6_SIG const char *ipstr, uint8_t *ip
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#define PICO_SOCKET_SETOPTION_SIG struct pico_socket *s, int option, void *value
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#define PICO_SOCKET_SEND_SIG struct pico_socket *s, const void *buf, int len
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#define PICO_SOCKET_SENDTO_SIG struct pico_socket *s, const void *buf, int len, void *dst, uint16_t remote_port
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#define PICO_SOCKET_RECV_SIG struct pico_socket *s, void *buf, int len
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#define PICO_SOCKET_RECVFROM_SIG struct pico_socket *s, void *buf, int len, void *orig, uint16_t *remote_port
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#define PICO_SOCKET_OPEN_SIG uint16_t net, uint16_t proto, void (*wakeup)(uint16_t ev, struct pico_socket *s)
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#define PICO_SOCKET_BIND_SIG struct pico_socket *s, void *local_addr, uint16_t *port
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#define PICO_SOCKET_CONNECT_SIG struct pico_socket *s, const void *srv_addr, uint16_t remote_port
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#define PICO_SOCKET_LISTEN_SIG struct pico_socket *s, const int backlog
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#define PICO_SOCKET_READ_SIG struct pico_socket *s, void *buf, int len
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#define PICO_SOCKET_WRITE_SIG struct pico_socket *s, const void *buf, int len
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#define PICO_SOCKET_CLOSE_SIG struct pico_socket *s
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#define PICO_SOCKET_SHUTDOWN_SIG struct pico_socket *s, int mode
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#define PICO_SOCKET_ACCEPT_SIG struct pico_socket *s, void *orig, uint16_t *port
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#define PICO_IPV6_LINK_ADD_SIG struct pico_device *dev, struct pico_ip6 address, struct pico_ip6 netmask
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#define PICO_IPV4_ROUTE_ADD_SIG struct pico_ip4 address, struct pico_ip4 netmask, struct pico_ip4 gateway, int metric, struct pico_ipv4_link *link
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#define PICO_IPV4_ROUTE_DEL_SIG struct pico_ip4 address, struct pico_ip4 netmask, int metric
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#define PICO_IPV6_ROUTE_ADD_SIG struct pico_ip6 address, struct pico_ip6 netmask, struct pico_ip6 gateway, int metric, struct pico_ipv6_link *link
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#define PICO_IPV6_ROUTE_DEL_SIG struct pico_ip6 address, struct pico_ip6 netmask, struct pico_ip6 gateway, int metric, struct pico_ipv6_link *link
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#define PICO_DNS_CLIENT_NAMESERVER_SIG pico_ip4*, unsigned char
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/**
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* Send raw frames from the stack to the ZeroTier virtual wire
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*/
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int rd_pico_eth_tx(struct pico_device *dev, void *buf, int len);
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/**
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* Read raw frames from RX frame buffer into the stack
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*/
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int rd_pico_eth_poll(struct pico_device *dev, int loop_score);
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/**
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* Set up an interface in the network stack for the VirtualTap
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*/
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bool pico_init_interface(VirtualTap *tap);
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/**
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* Register an address with the stack
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*/
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bool pico_register_address(VirtualTap *tap, const InetAddress &ip);
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/**
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* Adds a route to the picoTCP device
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*/
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bool rd_pico_route_add(VirtualTap *tap, const InetAddress &addr, const InetAddress &nm, const InetAddress &gw, int metric);
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/**
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* Deletes a route from the picoTCP device
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*/
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bool rd_pico_route_del(VirtualTap *tap, const InetAddress &addr, const InetAddress &nm, int metric);
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/**
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* Registers a DNS nameserver with the network stack
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*/
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int rd_pico_add_dns_nameserver(struct sockaddr *addr);
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/**
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* Un-registers a DNS nameserver from the network stack
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*/
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int rd_pico_del_dns_nameserver(struct sockaddr *addr);
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/**
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* Main stack loop
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*/
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void rd_pico_loop(VirtualTap *tap);
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/**
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* Read bytes from the stack to the RX buffer (prepare to be read by app)
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*/
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void rd_pico_cb_tcp_read(VirtualTap *tap, struct pico_socket *s);
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/**
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* Read bytes from the stack to the RX buffer (prepare to be read by app)
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*/
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void rd_pico_cb_udp_read(VirtualTap *tap, struct pico_socket *s);
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/**
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* Write bytes from TX buffer to stack (prepare to be sent to ZT virtual wire)
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*/
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void rd_pico_cb_tcp_write(VirtualTap *tap, struct pico_socket *s);
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/**
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* Write bytes from TX buffer to stack (prepare to be sent to ZT virtual wire)
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*/
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void rd_pico_cb_socket_ev(uint16_t ev, struct pico_socket *s);
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/**
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* Packets from the ZeroTier virtual wire enter the stack here
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*/
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void rd_pico_eth_rx(VirtualTap *tap, const ZeroTier::MAC &from, const ZeroTier::MAC &to,
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unsigned int etherType, const void *data, unsigned int len);
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/**
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* Creates a stack-specific "socket" or "VirtualSocket object"
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*/
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int rd_pico_socket(struct pico_socket **p, int socket_family, int socket_type, int protocol);
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/**
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* Connect to remote host via userspace network stack interface - Called from VirtualTap
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*/
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int rd_pico_connect(VirtualSocket *vs, const struct sockaddr *addr, socklen_t addrlen);
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/**
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* Bind to a userspace network stack interface - Called from VirtualTap
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*/
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int rd_pico_bind(VirtualSocket *vs, const struct sockaddr *addr, socklen_t addrlen);
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/**
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* Listen for incoming VirtualSockets - Called from VirtualTap
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*/
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int rd_pico_listen(VirtualSocket *vs, int backlog);
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/**
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* Accept an incoming VirtualSocket - Called from VirtualTap
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*/
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VirtualSocket* rd_pico_accept(VirtualSocket *vs);
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/**
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* Read from RX buffer to application - Called from VirtualTap
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*/
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int rd_pico_read(VirtualTap *tap, ZeroTier::PhySocket *sock, VirtualSocket *vs, bool stack_invoked);
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/**
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* Write to userspace network stack - Called from VirtualTap
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*/
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int rd_pico_write(VirtualSocket *vs, void *data, ssize_t len);
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/**
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* Close a VirtualSocket - Called from VirtualTap
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*/
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int rd_pico_close(VirtualSocket *vs);
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/**
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* Shuts down some aspect of a VirtualSocket - Called from VirtualTap
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*/
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int rd_pico_shutdown(VirtualSocket *vs, int how);
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/**
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* Sets a property of a socket
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*/
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int rd_pico_setsockopt(VirtualSocket *vs, int level, int optname, const void *optval, socklen_t optlen);
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/**
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* Gets a property of a socket
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*/
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int rd_pico_getsockopt(VirtualSocket *vs, int level, int optname, void *optval, socklen_t *optlen);
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/**
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* Converts a pico_err to its most closely-related errno, and sets errno
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*/
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int map_pico_err_to_errno(int err);
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/**
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* Converts picoTCP error codes to pretty string
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*/
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char *beautify_pico_error(int err);
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/**
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* Converts picoTCP socket states into pretty string
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*/
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char *beautify_pico_state(int state);
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#endif // _H
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