dtucker@openbsd.org | b8d4eaf | 2016-03-02 22:42:40 +0000 | [diff] [blame] | 1 | /* $OpenBSD: misc.h,v 1.55 2016/03/02 22:42:40 dtucker Exp $ */ |
Ben Lindstrom | 36579d3 | 2001-01-29 07:39:26 +0000 | [diff] [blame] | 2 | |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 3 | /* |
| 4 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| 5 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 6 | * All rights reserved |
| 7 | * |
| 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". |
| 13 | */ |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 14 | |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 15 | #ifndef _MISC_H |
| 16 | #define _MISC_H |
| 17 | |
Damien Miller | 7acefbb | 2014-07-18 14:11:24 +1000 | [diff] [blame] | 18 | /* Data structure for representing a forwarding request. */ |
| 19 | struct Forward { |
| 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 */ |
| 28 | }; |
| 29 | |
| 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 */ |
| 35 | }; |
| 36 | |
Darren Tucker | e608ca2 | 2004-05-13 16:15:47 +1000 | [diff] [blame] | 37 | /* misc.c */ |
| 38 | |
Kevin Steves | d009ae3 | 2001-07-04 17:25:54 +0000 | [diff] [blame] | 39 | char *chop(char *); |
| 40 | char *strdelim(char **); |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 41 | int set_nonblock(int); |
| 42 | int unset_nonblock(int); |
Damien Miller | 398e1cf | 2002-02-05 11:52:13 +1100 | [diff] [blame] | 43 | void set_nodelay(int); |
Kevin Steves | d009ae3 | 2001-07-04 17:25:54 +0000 | [diff] [blame] | 44 | int a2port(const char *); |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 45 | int a2tun(const char *, int *); |
Darren Tucker | da34553 | 2006-07-10 23:04:19 +1000 | [diff] [blame] | 46 | char *put_host_port(const char *, u_short); |
Damien Miller | f91ee4c | 2005-03-01 21:24:33 +1100 | [diff] [blame] | 47 | char *hpdelim(char **); |
Kevin Steves | d009ae3 | 2001-07-04 17:25:54 +0000 | [diff] [blame] | 48 | char *cleanhostname(char *); |
| 49 | char *colon(char *); |
| 50 | long convtime(const char *); |
Damien Miller | 5fd38c0 | 2005-05-26 12:02:14 +1000 | [diff] [blame] | 51 | char *tilde_expand_filename(const char *, uid_t); |
Darren Tucker | 8e2eb30 | 2005-07-14 17:07:21 +1000 | [diff] [blame] | 52 | char *percent_expand(const char *, ...) __attribute__((__sentinel__)); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 53 | char *tohex(const void *, size_t); |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 54 | void sanitise_stdfd(void); |
Darren Tucker | 3fc464e | 2008-06-13 06:42:45 +1000 | [diff] [blame] | 55 | void ms_subtract_diff(struct timeval *, int *); |
| 56 | void ms_to_timeval(struct timeval *, int); |
Darren Tucker | b759c9c | 2013-06-02 07:46:16 +1000 | [diff] [blame] | 57 | time_t monotime(void); |
dtucker@openbsd.org | b8d4eaf | 2016-03-02 22:42:40 +0000 | [diff] [blame] | 58 | double monotime_double(void); |
Damien Miller | e9fc72e | 2013-10-15 12:14:12 +1100 | [diff] [blame] | 59 | void lowercase(char *s); |
Damien Miller | 7acefbb | 2014-07-18 14:11:24 +1000 | [diff] [blame] | 60 | int unix_listener(const char *, int, int); |
Damien Miller | e9fc72e | 2013-10-15 12:14:12 +1100 | [diff] [blame] | 61 | |
Damien Miller | 04ee0f8 | 2009-11-18 17:48:30 +1100 | [diff] [blame] | 62 | void sock_set_v6only(int); |
Kevin Steves | d009ae3 | 2001-07-04 17:25:54 +0000 | [diff] [blame] | 63 | |
| 64 | struct passwd *pwcopy(struct passwd *); |
Darren Tucker | 4abde77 | 2007-12-29 02:43:51 +1100 | [diff] [blame] | 65 | const char *ssh_gai_strerror(int); |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 66 | |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 67 | typedef struct arglist arglist; |
| 68 | struct arglist { |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 69 | char **list; |
Darren Tucker | c7a6fc4 | 2004-08-13 21:18:00 +1000 | [diff] [blame] | 70 | u_int num; |
| 71 | u_int nalloc; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 72 | }; |
Damien Miller | 3eec6b7 | 2006-01-31 21:49:27 +1100 | [diff] [blame] | 73 | void addargs(arglist *, char *, ...) |
| 74 | __attribute__((format(printf, 2, 3))); |
| 75 | void replacearg(arglist *, u_int, char *, ...) |
| 76 | __attribute__((format(printf, 3, 4))); |
| 77 | void freeargs(arglist *); |
Darren Tucker | 06f2bd8 | 2004-05-13 16:06:46 +1000 | [diff] [blame] | 78 | |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 79 | int tun_open(int, int); |
| 80 | |
| 81 | /* Common definitions for ssh tunnel device forwarding */ |
| 82 | #define SSH_TUNMODE_NO 0x00 |
| 83 | #define SSH_TUNMODE_POINTOPOINT 0x01 |
| 84 | #define SSH_TUNMODE_ETHERNET 0x02 |
| 85 | #define SSH_TUNMODE_DEFAULT SSH_TUNMODE_POINTOPOINT |
| 86 | #define SSH_TUNMODE_YES (SSH_TUNMODE_POINTOPOINT|SSH_TUNMODE_ETHERNET) |
| 87 | |
| 88 | #define SSH_TUNID_ANY 0x7fffffff |
| 89 | #define SSH_TUNID_ERR (SSH_TUNID_ANY - 1) |
| 90 | #define SSH_TUNID_MAX (SSH_TUNID_ANY - 2) |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 91 | |
Damien Miller | 7acefbb | 2014-07-18 14:11:24 +1000 | [diff] [blame] | 92 | /* Fake port to indicate that host field is really a path. */ |
| 93 | #define PORT_STREAMLOCAL -2 |
| 94 | |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 95 | /* Functions to extract or store big-endian words of various sizes */ |
| 96 | u_int64_t get_u64(const void *) |
Damien Miller | 686c7d9 | 2014-05-15 14:37:03 +1000 | [diff] [blame] | 97 | __attribute__((__bounded__( __minbytes__, 1, 8))); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 98 | u_int32_t get_u32(const void *) |
Damien Miller | 686c7d9 | 2014-05-15 14:37:03 +1000 | [diff] [blame] | 99 | __attribute__((__bounded__( __minbytes__, 1, 4))); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 100 | u_int16_t get_u16(const void *) |
Damien Miller | 686c7d9 | 2014-05-15 14:37:03 +1000 | [diff] [blame] | 101 | __attribute__((__bounded__( __minbytes__, 1, 2))); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 102 | void put_u64(void *, u_int64_t) |
Damien Miller | 686c7d9 | 2014-05-15 14:37:03 +1000 | [diff] [blame] | 103 | __attribute__((__bounded__( __minbytes__, 1, 8))); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 104 | void put_u32(void *, u_int32_t) |
Damien Miller | 686c7d9 | 2014-05-15 14:37:03 +1000 | [diff] [blame] | 105 | __attribute__((__bounded__( __minbytes__, 1, 4))); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 106 | void put_u16(void *, u_int16_t) |
Damien Miller | 686c7d9 | 2014-05-15 14:37:03 +1000 | [diff] [blame] | 107 | __attribute__((__bounded__( __minbytes__, 1, 2))); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 108 | |
Damien Miller | 8885669 | 2014-04-20 13:33:19 +1000 | [diff] [blame] | 109 | /* Little-endian store/load, used by umac.c */ |
| 110 | u_int32_t get_u32_le(const void *) |
Damien Miller | 686c7d9 | 2014-05-15 14:37:03 +1000 | [diff] [blame] | 111 | __attribute__((__bounded__(__minbytes__, 1, 4))); |
Damien Miller | 8885669 | 2014-04-20 13:33:19 +1000 | [diff] [blame] | 112 | void put_u32_le(void *, u_int32_t) |
Damien Miller | 686c7d9 | 2014-05-15 14:37:03 +1000 | [diff] [blame] | 113 | __attribute__((__bounded__(__minbytes__, 1, 4))); |
Damien Miller | 8885669 | 2014-04-20 13:33:19 +1000 | [diff] [blame] | 114 | |
Damien Miller | 65e42f8 | 2010-09-24 22:15:11 +1000 | [diff] [blame] | 115 | struct bwlimit { |
| 116 | size_t buflen; |
| 117 | u_int64_t rate, thresh, lamt; |
| 118 | struct timeval bwstart, bwend; |
| 119 | }; |
| 120 | |
| 121 | void bandwidth_limit_init(struct bwlimit *, u_int64_t, size_t); |
| 122 | void bandwidth_limit(struct bwlimit *, size_t); |
| 123 | |
Damien Miller | 0dac6fb | 2010-11-20 15:19:38 +1100 | [diff] [blame] | 124 | int parse_ipqos(const char *); |
Damien Miller | 9147586 | 2011-05-05 14:14:34 +1000 | [diff] [blame] | 125 | const char *iptos2str(int); |
Damien Miller | 2cd6293 | 2010-12-01 11:50:35 +1100 | [diff] [blame] | 126 | void mktemp_proto(char *, size_t); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 127 | |
Damien Miller | bdf00ca | 2006-08-19 00:33:05 +1000 | [diff] [blame] | 128 | /* readpass.c */ |
| 129 | |
| 130 | #define RP_ECHO 0x0001 |
| 131 | #define RP_ALLOW_STDIN 0x0002 |
| 132 | #define RP_ALLOW_EOF 0x0004 |
| 133 | #define RP_USE_ASKPASS 0x0008 |
| 134 | |
| 135 | char *read_passphrase(const char *, int); |
| 136 | int ask_permission(const char *, ...) __attribute__((format(printf, 1, 2))); |
| 137 | int read_keyfile_line(FILE *, const char *, char *, size_t, u_long *); |
| 138 | |
| 139 | #endif /* _MISC_H */ |