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Diffstat (limited to 'netcon/Intercept.h')
| -rw-r--r-- | netcon/Intercept.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/netcon/Intercept.h b/netcon/Intercept.h new file mode 100644 index 00000000..ef10dc64 --- /dev/null +++ b/netcon/Intercept.h @@ -0,0 +1,192 @@ +/* + * ZeroTier One - Network Virtualization Everywhere + * Copyright (C) 2011-2015 ZeroTier, Inc. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * 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. If not, see <http://www.gnu.org/licenses/>. + * + * -- + * + * ZeroTier may be used and distributed under the terms of the GPLv3, which + * are available at: http://www.gnu.org/licenses/gpl-3.0.html + * + * If you would like to embed ZeroTier into a commercial application or + * redistribute it in a modified binary form, please contact ZeroTier Networks + * LLC. Start here: http://www.zerotier.com/ + */ + + +#ifndef _INTERCEPT_H +#define _INTERCEPT_H 1 + +#include <sys/socket.h> + +#define IDX_PID 0 +#define IDX_TID sizeof(pid_t) +#define IDX_COUNT IDX_TID + sizeof(pid_t) +#define IDX_TIME IDX_COUNT + sizeof(int) +#define IDX_PAYLOAD IDX_TIME + 20 /* 20 being the length of the timestamp string */ + +#define BUF_SZ 256 +#define PAYLOAD_SZ 223 /* BUF_SZ-IDX_PAYLOAD */ + +#define ERR_OK 0 + +/* Userland RPC codes */ +#define RPC_UNDEFINED 0 +#define RPC_CONNECT 1 +#define RPC_CONNECT_SOCKARG 2 +#define RPC_SELECT 3 +#define RPC_POLL 4 +#define RPC_CLOSE 5 +#define RPC_READ 6 +#define RPC_WRITE 7 +#define RPC_BIND 8 +#define RPC_ACCEPT 9 +#define RPC_LISTEN 10 +#define RPC_SOCKET 11 +#define RPC_SHUTDOWN 12 + +/* Administration RPC codes */ +#define RPC_MAP 20 /* Give the service the value we "see" for the new buffer fd */ +#define RPC_MAP_REQ 21 /* A call to determine whether an fd is mapped to the service */ +#define RPC_RETVAL 22 /* not RPC per se, but something we should codify */ +#define RPC_KILL_INTERCEPT 23 /* Tells the service we need to shut down all connections */ + +/* Connection statuses */ +#define UNSTARTED 0 +#define CONNECTING 1 +#define CONNECTED 2 +#define SENDING 3 +#define RECEIVING 4 +#define SENTV4REQ 5 +#define GOTV4REQ 6 +#define SENTV5METHOD 7 +#define GOTV5METHOD 8 +#define SENTV5AUTH 9 +#define GOTV5AUTH 10 +#define SENTV5CONNECT 11 +#define GOTV5CONNECT 12 +#define DONE 13 +#define FAILED 14 + +/* Flags to indicate what events a + socket was select()ed for */ +#define READ (POLLIN|POLLRDNORM) +#define WRITE (POLLOUT|POLLWRNORM|POLLWRBAND) +#define EXCEPT (POLLRDBAND|POLLPRI) +#define READWRITE (READ|WRITE) +#define READWRITEEXCEPT (READ|WRITE|EXCEPT) + + +/* for AF_UNIX sockets */ +#define MAX_PATH_NAME_SIZE 64 + +/* bind */ +#define BIND_SIG int sockfd, const struct sockaddr *addr, socklen_t addrlen +struct bind_st +{ + int sockfd; + struct sockaddr addr; + socklen_t addrlen; + int __tid; +}; + +/* connect */ +#define CONNECT_SIG int __fd, const struct sockaddr * __addr, socklen_t __len +struct connect_st +{ + int __fd; + struct sockaddr __addr; + socklen_t __len; + int __tid; +}; + +/* close */ +#define CLOSE_SIG int fd +struct close_st +{ + int fd; +}; + +/* read */ +#define DEFAULT_READ_BUFFER_SIZE 1024 * 63 +/* read buffer sizes (on test machine) min: 4096 default: 87380 max:6147872 */ +#define READ_SIG int __fd, void *__buf, size_t __nbytes +struct read_st +{ + int fd; + size_t count; + unsigned char buf[DEFAULT_READ_BUFFER_SIZE]; +}; + +/* write */ +#define DEFAULT_WRITE_BUFFER_SIZE 1024 * 63 +/* write buffer sizes (on test machine) min: 4096 default: 16384 max:4194304 */ +#define WRITE_SIG int __fd, const void *__buf, size_t __n +struct write_st +{ + int fd; + size_t count; + char buf[DEFAULT_WRITE_BUFFER_SIZE]; +}; + +#define LISTEN_SIG int sockfd, int backlog +struct listen_st +{ + int sockfd; + int backlog; + int __tid; +}; + +#define SOCKET_SIG int socket_family, int socket_type, int protocol +struct socket_st +{ + int socket_family; + int socket_type; + int protocol; + int __tid; +}; + +#define ACCEPT4_SIG int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags +#define ACCEPT_SIG int sockfd, struct sockaddr *addr, socklen_t *addrlen +struct accept_st +{ + int sockfd; + struct sockaddr addr; + socklen_t addrlen; + int __tid; +}; + +#define SHUTDOWN_SIG int socket, int how +struct shutdown_st +{ + int socket; + int how; +}; + +#define CONNECT_SOCKARG struct sockaddr * +#define SELECT_SIG int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout +#define IOCTL_SIG int __fd, unsigned long int __request, ... +#define FCNTL_SIG int __fd, int __cmd, ... +#define DAEMON_SIG int nochdir, int noclose +#define SETSOCKOPT_SIG int socket, int level, int option_name, const void *option_value, socklen_t option_len +#define GETSOCKOPT_SIG int sockfd, int level, int optname, void *optval, socklen_t *optlen +#define SYSCALL_SIG long number, ... +#define CLONE_SIG int (*fn)(void *), void *child_stack, int flags, void *arg, ... +#define POLL_SIG struct pollfd *fds, nfds_t nfds, int timeout + +#define DUP2_SIG int oldfd, int newfd +#define DUP3_SIG int oldfd, int newfd, int flags + +#endif |