Mercurial > dropbear

annotate netio.h @ 1916:3f4cdf839a1a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Make SHA1 optional, implement SHA256 fingerprints SHA256 is always compiled and only enable SHA1 when needed. Fingerprints are always SHA256: base64 format, md5 and sha1 are removed. dbrandom now uses sha256 its hash function.
author Matt Johnston <matt@ucc.asn.au>
date Wed, 30 Mar 2022 11:44:04 +0800
parents 1d86a58fb52d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1032
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1 #ifndef DROPBEAR_NETIO_H
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
2 #define DROPBEAR_NETIO_H
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
4 #include "includes.h"
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
5 #include "buffer.h"
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6 #include "queue.h"
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
7
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 enum dropbear_prio {
1859
1d86a58fb52d Leave non-interactive at default QoS class
Matt Johnston <matt@ucc.asn.au>
parents: 1466
diff changeset
9 DROPBEAR_PRIO_NORMAL = 0, /* the rest - tcp-fwd, scp, rsync, git, etc */
1d86a58fb52d Leave non-interactive at default QoS class
Matt Johnston <matt@ucc.asn.au>
parents: 1466
diff changeset
10 DROPBEAR_PRIO_LOWDELAY, /* pty shell, x11 */
1032
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
11 };
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
12
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 void set_sock_nodelay(int sock);
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 void set_sock_priority(int sock, enum dropbear_prio prio);
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
15
1464
ad637c9e0f6f Server chosen tcpfwd ports (#43)
houseofkodai <karthik@houseofkodai.in>
parents: 1459
diff changeset
16 int get_sock_port(int sock);
1032
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
17 void get_socket_address(int fd, char **local_host, char **local_port,
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
18 char **remote_host, char **remote_port, int host_lookup);
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
19 void getaddrstring(struct sockaddr_storage* addr,
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
20 char **ret_host, char **ret_port, int host_lookup);
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 int dropbear_listen(const char* address, const char* port,
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
22 int *socks, unsigned int sockcount, char **errstring, int *maxfd);
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
23
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
24 struct dropbear_progress_connection;
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
25
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
26 /* result is DROPBEAR_SUCCESS or DROPBEAR_FAILURE.
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
27 errstring is only set on DROPBEAR_FAILURE, returns failure message for the last attempted socket */
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
28 typedef void(*connect_callback)(int result, int sock, void* data, const char* errstring);
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
29
1054
c71df09bc610 Avoid copying data into circular buffer
Matt Johnston <matt@ucc.asn.au>
parents: 1050
diff changeset
30 /* Always returns a progress connection, if it fails it will call the callback at a later point */
1032
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
31 struct dropbear_progress_connection * connect_remote (const char* remotehost, const char* remoteport,
1859
1d86a58fb52d Leave non-interactive at default QoS class
Matt Johnston <matt@ucc.asn.au>
parents: 1466
diff changeset
32 connect_callback cb, void *cb_data, const char* bind_address, const char* bind_port,
1d86a58fb52d Leave non-interactive at default QoS class
Matt Johnston <matt@ucc.asn.au>
parents: 1466
diff changeset
33 enum dropbear_prio prio);
1032
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
34
1050
c2a50c9f509e Add cleanup
Matt Johnston <matt@ucc.asn.au>
parents: 1033
diff changeset
35 /* Sets up for select() */
1032
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
36 void set_connect_fds(fd_set *writefd);
1050
c2a50c9f509e Add cleanup
Matt Johnston <matt@ucc.asn.au>
parents: 1033
diff changeset
37 /* Handles ready sockets after select() */
1459
06d52bcb8094 Pointer parameter could be declared as pointing to const
Francois Perrad <francois.perrad@gadz.org>
parents: 1295
diff changeset
38 void handle_connect_fds(const fd_set *writefd);
1050
c2a50c9f509e Add cleanup
Matt Johnston <matt@ucc.asn.au>
parents: 1033
diff changeset
39 /* Cleanup */
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1084
diff changeset
40 void remove_connect_pending(void);
1032
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
41
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
42 /* Doesn't actually stop the connect, but adds a dummy callback instead */
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
43 void cancel_connect(struct dropbear_progress_connection *c);
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
44
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
45 void connect_set_writequeue(struct dropbear_progress_connection *c, struct Queue *writequeue);
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
46
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
47 /* TODO: writev #ifdef guard */
1072
686cd3e8e13e avoid malloc for iovec
Matt Johnston <matt@ucc.asn.au>
parents: 1054
diff changeset
48 /* Fills out iov which contains iov_count slots, returning the number filled in iov_count */
1459
06d52bcb8094 Pointer parameter could be declared as pointing to const
Francois Perrad <francois.perrad@gadz.org>
parents: 1295
diff changeset
49 void packet_queue_to_iovec(const struct Queue *queue, struct iovec *iov, unsigned int *iov_count);
1032
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
50 void packet_queue_consume(struct Queue *queue, ssize_t written);
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
51
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1276
diff changeset
52 #if DROPBEAR_SERVER_TCP_FAST_OPEN
1033
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
53 /* Try for any Linux builds, will fall back if the kernel doesn't support it */
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
54 void set_listen_fast_open(int sock);
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
55 /* Define values which may be supported by the kernel even if the libc is too old */
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
56 #ifndef TCP_FASTOPEN
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
57 #define TCP_FASTOPEN 23
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
58 #endif
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
59 #ifndef MSG_FASTOPEN
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
60 #define MSG_FASTOPEN 0x20000000
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
61 #endif
1032
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
62 #endif
0da8ba489c23 Move generic network routines to netio.c
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
63
1033
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
64 #endif
ca71904cf3ee Fixes for backwards compatibility
Matt Johnston <matt@ucc.asn.au>
parents: 1032
diff changeset
65