1 /* $OpenBSD: misc.h,v 1.54 2014/07/15 15:54:14 millert Exp $ */
4 * Author: Tatu Ylonen <ylo@cs.hut.fi>
5 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
8 * As far as I am concerned, the code I have written for this software
9 * can be used freely for any purpose. Any derived versions of this
10 * software must be clearly marked as such, and if the derived work is
11 * incompatible with the protocol description in the RFC file, it must be
12 * called by a name other than "ssh" or "Secure Shell".
18 /* Data structure for representing a forwarding request. */
20 char *listen_host
; /* Host (address) to listen on. */
21 int listen_port
; /* Port to forward. */
22 char *listen_path
; /* Path to bind domain socket. */
23 char *connect_host
; /* Host to connect. */
24 int connect_port
; /* Port to connect on connect_host. */
25 char *connect_path
; /* Path to connect domain socket. */
26 int allocated_port
; /* Dynamically allocated listen port */
27 int handle
; /* Handle for dynamic listen ports */
30 /* Common server and client forwarding options. */
31 struct ForwardOptions
{
32 int gateway_ports
; /* Allow remote connects to forwarded ports. */
33 mode_t streamlocal_bind_mask
; /* umask for streamlocal binds */
34 int streamlocal_bind_unlink
; /* unlink socket before bind */
40 char *strdelim(char **);
41 int set_nonblock(int);
42 int unset_nonblock(int);
43 void set_nodelay(int);
44 int a2port(const char *);
45 int a2tun(const char *, int *);
46 char *put_host_port(const char *, u_short
);
47 char *hpdelim(char **);
48 char *cleanhostname(char *);
50 long convtime(const char *);
51 char *tilde_expand_filename(const char *, uid_t
);
52 char *percent_expand(const char *, ...) __attribute__((__sentinel__
));
53 char *tohex(const void *, size_t);
54 void sanitise_stdfd(void);
55 void ms_subtract_diff(struct timeval
*, int *);
56 void ms_to_timeval(struct timeval
*, int);
57 time_t monotime(void);
58 void lowercase(char *s
);
59 int unix_listener(const char *, int, int);
61 void sock_set_v6only(int);
63 struct passwd
*pwcopy(struct passwd
*);
64 const char *ssh_gai_strerror(int);
66 typedef struct arglist arglist
;
72 void addargs(arglist
*, char *, ...)
73 __attribute__((format(printf
, 2, 3)));
74 void replacearg(arglist
*, u_int
, char *, ...)
75 __attribute__((format(printf
, 3, 4)));
76 void freeargs(arglist
*);
78 int tun_open(int, int);
80 /* Common definitions for ssh tunnel device forwarding */
81 #define SSH_TUNMODE_NO 0x00
82 #define SSH_TUNMODE_POINTOPOINT 0x01
83 #define SSH_TUNMODE_ETHERNET 0x02
84 #define SSH_TUNMODE_DEFAULT SSH_TUNMODE_POINTOPOINT
85 #define SSH_TUNMODE_YES (SSH_TUNMODE_POINTOPOINT|SSH_TUNMODE_ETHERNET)
87 #define SSH_TUNID_ANY 0x7fffffff
88 #define SSH_TUNID_ERR (SSH_TUNID_ANY - 1)
89 #define SSH_TUNID_MAX (SSH_TUNID_ANY - 2)
91 /* Fake port to indicate that host field is really a path. */
92 #define PORT_STREAMLOCAL -2
94 /* Functions to extract or store big-endian words of various sizes */
95 u_int64_t
get_u64(const void *)
96 __attribute__((__bounded__( __minbytes__
, 1, 8)));
97 u_int32_t
get_u32(const void *)
98 __attribute__((__bounded__( __minbytes__
, 1, 4)));
99 u_int16_t
get_u16(const void *)
100 __attribute__((__bounded__( __minbytes__
, 1, 2)));
101 void put_u64(void *, u_int64_t
)
102 __attribute__((__bounded__( __minbytes__
, 1, 8)));
103 void put_u32(void *, u_int32_t
)
104 __attribute__((__bounded__( __minbytes__
, 1, 4)));
105 void put_u16(void *, u_int16_t
)
106 __attribute__((__bounded__( __minbytes__
, 1, 2)));
108 /* Little-endian store/load, used by umac.c */
109 u_int32_t
get_u32_le(const void *)
110 __attribute__((__bounded__(__minbytes__
, 1, 4)));
111 void put_u32_le(void *, u_int32_t
)
112 __attribute__((__bounded__(__minbytes__
, 1, 4)));
116 u_int64_t rate
, thresh
, lamt
;
117 struct timeval bwstart
, bwend
;
120 void bandwidth_limit_init(struct bwlimit
*, u_int64_t
, size_t);
121 void bandwidth_limit(struct bwlimit
*, size_t);
123 int parse_ipqos(const char *);
124 const char *iptos2str(int);
125 void mktemp_proto(char *, size_t);
129 #define RP_ECHO 0x0001
130 #define RP_ALLOW_STDIN 0x0002
131 #define RP_ALLOW_EOF 0x0004
132 #define RP_USE_ASKPASS 0x0008
134 char *read_passphrase(const char *, int);
135 int ask_permission(const char *, ...) __attribute__((format(printf
, 1, 2)));
136 int read_keyfile_line(FILE *, const char *, char *, size_t, u_long
*);