Annotation of src/usr.bin/ssh/misc.h, Revision 1.85
1.85 ! djm 1: /* $OpenBSD: misc.h,v 1.84 2020/01/24 23:54:40 djm Exp $ */
1.2 niklas 2:
1.1 markus 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: */
1.10 markus 14:
1.31 djm 15: #ifndef _MISC_H
16: #define _MISC_H
1.58 guenther 17:
18: #include <sys/time.h>
1.62 djm 19: #include <sys/types.h>
1.78 djm 20: #include <sys/socket.h>
1.31 djm 21:
1.54 millert 22: /* Data structure for representing a forwarding request. */
23: struct Forward {
24: char *listen_host; /* Host (address) to listen on. */
25: int listen_port; /* Port to forward. */
26: char *listen_path; /* Path to bind domain socket. */
27: char *connect_host; /* Host to connect. */
28: int connect_port; /* Port to connect on connect_host. */
29: char *connect_path; /* Path to connect domain socket. */
30: int allocated_port; /* Dynamically allocated listen port */
31: int handle; /* Handle for dynamic listen ports */
32: };
1.56 djm 33:
34: int forward_equals(const struct Forward *, const struct Forward *);
1.61 dtucker 35: int daemonized(void);
1.54 millert 36:
37: /* Common server and client forwarding options. */
38: struct ForwardOptions {
39: int gateway_ports; /* Allow remote connects to forwarded ports. */
40: mode_t streamlocal_bind_mask; /* umask for streamlocal binds */
41: int streamlocal_bind_unlink; /* unlink socket before bind */
42: };
43:
1.14 djm 44: /* misc.c */
45:
1.9 itojun 46: char *chop(char *);
1.80 djm 47: void skip_space(char **);
1.9 itojun 48: char *strdelim(char **);
1.73 djm 49: char *strdelimw(char **);
1.15 djm 50: int set_nonblock(int);
51: int unset_nonblock(int);
1.11 stevesk 52: void set_nodelay(int);
1.66 djm 53: int set_reuseaddr(int);
1.67 djm 54: char *get_rdomain(int);
1.66 djm 55: int set_rdomain(int, const char *);
1.78 djm 56: int waitrfd(int, int *);
57: int timeout_connect(int, const struct sockaddr *, socklen_t, int *);
1.10 markus 58: int a2port(const char *);
1.27 reyk 59: int a2tun(const char *, int *);
1.33 dtucker 60: char *put_host_port(const char *, u_short);
1.79 dtucker 61: char *hpdelim2(char **, char *);
1.21 djm 62: char *hpdelim(char **);
1.10 markus 63: char *cleanhostname(char *);
64: char *colon(char *);
1.64 millert 65: int parse_user_host_path(const char *, char **, char **, char **);
1.57 djm 66: int parse_user_host_port(const char *, char **, char **, int *);
1.64 millert 67: int parse_uri(const char *, const char *, char **, char **, int *, char **);
1.10 markus 68: long convtime(const char *);
1.85 ! djm 69: const char *fmt_timeframe(time_t t);
1.22 djm 70: char *tilde_expand_filename(const char *, uid_t);
1.25 dtucker 71: char *percent_expand(const char *, ...) __attribute__((__sentinel__));
1.31 djm 72: char *tohex(const void *, size_t);
1.84 djm 73: void xextendf(char **s, const char *sep, const char *fmt, ...)
74: __attribute__((__format__ (printf, 3, 4))) __attribute__((__nonnull__ (3)));
1.26 djm 75: void sanitise_stdfd(void);
1.38 dtucker 76: void ms_subtract_diff(struct timeval *, int *);
77: void ms_to_timeval(struct timeval *, int);
1.68 dtucker 78: void monotime_ts(struct timespec *);
79: void monotime_tv(struct timeval *);
1.49 dtucker 80: time_t monotime(void);
1.55 dtucker 81: double monotime_double(void);
1.50 djm 82: void lowercase(char *s);
1.54 millert 83: int unix_listener(const char *, int, int);
1.64 millert 84: int valid_domain(char *, int, const char **);
1.75 djm 85: int valid_env_name(const char *);
1.69 dtucker 86: const char *atoi_err(const char *, int *);
1.71 djm 87: int parse_absolute_time(const char *, uint64_t *);
88: void format_absolute_time(uint64_t, char *, size_t);
1.76 djm 89: int path_absolute(const char *);
1.1 markus 90:
1.10 markus 91: struct passwd *pwcopy(struct passwd *);
1.37 dtucker 92: const char *ssh_gai_strerror(int);
1.5 mouring 93:
1.6 mouring 94: typedef struct arglist arglist;
95: struct arglist {
1.12 markus 96: char **list;
1.17 avsm 97: u_int num;
98: u_int nalloc;
1.6 mouring 99: };
1.29 djm 100: void addargs(arglist *, char *, ...)
101: __attribute__((format(printf, 2, 3)));
102: void replacearg(arglist *, u_int, char *, ...)
103: __attribute__((format(printf, 3, 4)));
104: void freeargs(arglist *);
1.14 djm 105:
1.65 djm 106: int tun_open(int, int, char **);
1.28 reyk 107:
108: /* Common definitions for ssh tunnel device forwarding */
109: #define SSH_TUNMODE_NO 0x00
110: #define SSH_TUNMODE_POINTOPOINT 0x01
111: #define SSH_TUNMODE_ETHERNET 0x02
112: #define SSH_TUNMODE_DEFAULT SSH_TUNMODE_POINTOPOINT
113: #define SSH_TUNMODE_YES (SSH_TUNMODE_POINTOPOINT|SSH_TUNMODE_ETHERNET)
114:
115: #define SSH_TUNID_ANY 0x7fffffff
116: #define SSH_TUNID_ERR (SSH_TUNID_ANY - 1)
117: #define SSH_TUNID_MAX (SSH_TUNID_ANY - 2)
1.54 millert 118:
119: /* Fake port to indicate that host field is really a path. */
120: #define PORT_STREAMLOCAL -2
1.31 djm 121:
122: /* Functions to extract or store big-endian words of various sizes */
123: u_int64_t get_u64(const void *)
1.53 djm 124: __attribute__((__bounded__( __minbytes__, 1, 8)));
1.31 djm 125: u_int32_t get_u32(const void *)
1.53 djm 126: __attribute__((__bounded__( __minbytes__, 1, 4)));
1.31 djm 127: u_int16_t get_u16(const void *)
1.53 djm 128: __attribute__((__bounded__( __minbytes__, 1, 2)));
1.31 djm 129: void put_u64(void *, u_int64_t)
1.53 djm 130: __attribute__((__bounded__( __minbytes__, 1, 8)));
1.31 djm 131: void put_u32(void *, u_int32_t)
1.53 djm 132: __attribute__((__bounded__( __minbytes__, 1, 4)));
1.31 djm 133: void put_u16(void *, u_int16_t)
1.53 djm 134: __attribute__((__bounded__( __minbytes__, 1, 2)));
1.52 djm 135:
136: /* Little-endian store/load, used by umac.c */
137: u_int32_t get_u32_le(const void *)
1.53 djm 138: __attribute__((__bounded__(__minbytes__, 1, 4)));
1.52 djm 139: void put_u32_le(void *, u_int32_t)
1.53 djm 140: __attribute__((__bounded__(__minbytes__, 1, 4)));
1.44 djm 141:
142: struct bwlimit {
143: size_t buflen;
1.77 dtucker 144: u_int64_t rate; /* desired rate in kbit/s */
145: u_int64_t thresh; /* threshold after which we'll check timers */
146: u_int64_t lamt; /* amount written in last timer interval */
1.44 djm 147: struct timeval bwstart, bwend;
148: };
149:
150: void bandwidth_limit_init(struct bwlimit *, u_int64_t, size_t);
151: void bandwidth_limit(struct bwlimit *, size_t);
1.31 djm 152:
1.46 djm 153: int parse_ipqos(const char *);
1.48 stevesk 154: const char *iptos2str(int);
1.47 djm 155: void mktemp_proto(char *, size_t);
1.62 djm 156:
157: void child_set_env(char ***envp, u_int *envsizep, const char *name,
158: const char *value);
159:
160: int argv_split(const char *, int *, char ***);
161: char *argv_assemble(int, char **argv);
1.63 djm 162: int exited_cleanly(pid_t, const char *, const char *, int);
1.62 djm 163:
164: struct stat;
165: int safe_path(const char *, struct stat *, const char *, uid_t,
166: char *, size_t);
167: int safe_path_fd(int, const char *, struct passwd *,
168: char *err, size_t errlen);
1.81 djm 169:
170: /* authorized_key-style options parsing helpers */
171: int opt_flag(const char *opt, int allow_negate, const char **optsp);
172: char *opt_dequote(const char **sp, const char **errstrp);
173: int opt_match(const char **opts, const char *term);
1.36 djm 174:
175: /* readpass.c */
176:
177: #define RP_ECHO 0x0001
178: #define RP_ALLOW_STDIN 0x0002
179: #define RP_ALLOW_EOF 0x0004
180: #define RP_USE_ASKPASS 0x0008
181:
1.82 djm 182: struct notifier_ctx;
183:
1.36 djm 184: char *read_passphrase(const char *, int);
185: int ask_permission(const char *, ...) __attribute__((format(printf, 1, 2)));
1.82 djm 186: struct notifier_ctx *notify_start(int, const char *, ...)
187: __attribute__((format(printf, 2, 3)));
188: void notify_complete(struct notifier_ctx *);
1.59 deraadt 189:
190: #define MINIMUM(a, b) (((a) < (b)) ? (a) : (b))
191: #define MAXIMUM(a, b) (((a) > (b)) ? (a) : (b))
192: #define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
1.36 djm 193:
1.83 dtucker 194: typedef void (*sshsig_t)(int);
195: sshsig_t ssh_signal(int, sshsig_t);
1.31 djm 196: #endif /* _MISC_H */
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