Mercurial > dropbear
diff netio.h @ 1051:359fba4b1a49
merge tcp fastopen
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Sat, 28 Feb 2015 23:24:30 +0800 |
parents | c2a50c9f509e |
children | c71df09bc610 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/netio.h Sat Feb 28 23:24:30 2015 +0800 @@ -0,0 +1,62 @@ +#ifndef DROPBEAR_NETIO_H +#define DROPBEAR_NETIO_H + +#include "includes.h" +#include "buffer.h" +#include "queue.h" + +enum dropbear_prio { + DROPBEAR_PRIO_DEFAULT = 10, + DROPBEAR_PRIO_LOWDELAY = 11, + DROPBEAR_PRIO_BULK = 12, +}; + +void set_sock_nodelay(int sock); +void set_sock_priority(int sock, enum dropbear_prio prio); + +void get_socket_address(int fd, char **local_host, char **local_port, + char **remote_host, char **remote_port, int host_lookup); +void getaddrstring(struct sockaddr_storage* addr, + char **ret_host, char **ret_port, int host_lookup); +int dropbear_listen(const char* address, const char* port, + int *socks, unsigned int sockcount, char **errstring, int *maxfd); + +struct dropbear_progress_connection; + +/* result is DROPBEAR_SUCCESS or DROPBEAR_FAILURE. +errstring is only set on DROPBEAR_FAILURE, returns failure message for the last attempted socket */ +typedef void(*connect_callback)(int result, int sock, void* data, const char* errstring); + +struct dropbear_progress_connection * connect_remote (const char* remotehost, const char* remoteport, + connect_callback cb, void *cb_data); + +/* Sets up for select() */ +void set_connect_fds(fd_set *writefd); +/* Handles ready sockets after select() */ +void handle_connect_fds(fd_set *writefd); +/* Cleanup */ +void remove_connect_pending(); + +/* Doesn't actually stop the connect, but adds a dummy callback instead */ +void cancel_connect(struct dropbear_progress_connection *c); + +void connect_set_writequeue(struct dropbear_progress_connection *c, struct Queue *writequeue); + +/* TODO: writev #ifdef guard */ +struct iovec * packet_queue_to_iovec(struct Queue *queue, int *ret_iov_count); +void packet_queue_consume(struct Queue *queue, ssize_t written); + +#ifdef DROPBEAR_TCP_FAST_OPEN +/* Try for any Linux builds, will fall back if the kernel doesn't support it */ +void set_listen_fast_open(int sock); +/* Define values which may be supported by the kernel even if the libc is too old */ +#ifndef TCP_FASTOPEN +#define TCP_FASTOPEN 23 +#endif +#ifndef MSG_FASTOPEN +#define MSG_FASTOPEN 0x20000000 +#endif +#endif + +#endif +