| #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); |
| |
| /* Always returns a progress connection, if it fails it will call the callback at a later point */ |
| 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(void); |
| |
| /* 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 */ |
| /* Fills out iov which contains iov_count slots, returning the number filled in iov_count */ |
| void packet_queue_to_iovec(struct Queue *queue, struct iovec *iov, unsigned int *iov_count); |
| void packet_queue_consume(struct Queue *queue, ssize_t written); |
| |
| #if DROPBEAR_SERVER_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 |
| |