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comparison netio.h @ 1051:359fba4b1a49

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merge tcp fastopen
author Matt Johnston <matt@ucc.asn.au>
date Sat, 28 Feb 2015 23:24:30 +0800
parents c2a50c9f509e
children c71df09bc610
comparison
equal deleted inserted replaced
1045:31727a8abd4b 1051:359fba4b1a49
1 #ifndef DROPBEAR_NETIO_H
2 #define DROPBEAR_NETIO_H
3
4 #include "includes.h"
5 #include "buffer.h"
6 #include "queue.h"
7
8 enum dropbear_prio {
9 DROPBEAR_PRIO_DEFAULT = 10,
10 DROPBEAR_PRIO_LOWDELAY = 11,
11 DROPBEAR_PRIO_BULK = 12,
12 };
13
14 void set_sock_nodelay(int sock);
15 void set_sock_priority(int sock, enum dropbear_prio prio);
16
17 void get_socket_address(int fd, char **local_host, char **local_port,
18 char **remote_host, char **remote_port, int host_lookup);
19 void getaddrstring(struct sockaddr_storage* addr,
20 char **ret_host, char **ret_port, int host_lookup);
21 int dropbear_listen(const char* address, const char* port,
22 int *socks, unsigned int sockcount, char **errstring, int *maxfd);
23
24 struct dropbear_progress_connection;
25
26 /* result is DROPBEAR_SUCCESS or DROPBEAR_FAILURE.
27 errstring is only set on DROPBEAR_FAILURE, returns failure message for the last attempted socket */
28 typedef void(*connect_callback)(int result, int sock, void* data, const char* errstring);
29
30 struct dropbear_progress_connection * connect_remote (const char* remotehost, const char* remoteport,
31 connect_callback cb, void *cb_data);
32
33 /* Sets up for select() */
34 void set_connect_fds(fd_set *writefd);
35 /* Handles ready sockets after select() */
36 void handle_connect_fds(fd_set *writefd);
37 /* Cleanup */
38 void remove_connect_pending();
39
40 /* Doesn't actually stop the connect, but adds a dummy callback instead */
41 void cancel_connect(struct dropbear_progress_connection *c);
42
43 void connect_set_writequeue(struct dropbear_progress_connection *c, struct Queue *writequeue);
44
45 /* TODO: writev #ifdef guard */
46 struct iovec * packet_queue_to_iovec(struct Queue *queue, int *ret_iov_count);
47 void packet_queue_consume(struct Queue *queue, ssize_t written);
48
49 #ifdef DROPBEAR_TCP_FAST_OPEN
50 /* Try for any Linux builds, will fall back if the kernel doesn't support it */
51 void set_listen_fast_open(int sock);
52 /* Define values which may be supported by the kernel even if the libc is too old */
53 #ifndef TCP_FASTOPEN
54 #define TCP_FASTOPEN 23
55 #endif
56 #ifndef MSG_FASTOPEN
57 #define MSG_FASTOPEN 0x20000000
58 #endif
59 #endif
60
61 #endif
62