Annotation of src/usr.bin/ssh/misc.h, Revision 1.71
1.71 ! djm 1: /* $OpenBSD: misc.h,v 1.70 2018/01/08 15:21:49 markus 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>
1.31 djm 20:
1.54 millert 21: /* Data structure for representing a forwarding request. */
22: struct Forward {
23: char *listen_host; /* Host (address) to listen on. */
24: int listen_port; /* Port to forward. */
25: char *listen_path; /* Path to bind domain socket. */
26: char *connect_host; /* Host to connect. */
27: int connect_port; /* Port to connect on connect_host. */
28: char *connect_path; /* Path to connect domain socket. */
29: int allocated_port; /* Dynamically allocated listen port */
30: int handle; /* Handle for dynamic listen ports */
31: };
1.56 djm 32:
33: int forward_equals(const struct Forward *, const struct Forward *);
1.60 dtucker 34: int bind_permitted(int, uid_t);
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 *);
47: char *strdelim(char **);
1.15 djm 48: int set_nonblock(int);
49: int unset_nonblock(int);
1.11 stevesk 50: void set_nodelay(int);
1.66 djm 51: int set_reuseaddr(int);
1.67 djm 52: char *get_rdomain(int);
1.66 djm 53: int set_rdomain(int, const char *);
1.10 markus 54: int a2port(const char *);
1.27 reyk 55: int a2tun(const char *, int *);
1.33 dtucker 56: char *put_host_port(const char *, u_short);
1.21 djm 57: char *hpdelim(char **);
1.10 markus 58: char *cleanhostname(char *);
59: char *colon(char *);
1.64 millert 60: int parse_user_host_path(const char *, char **, char **, char **);
1.57 djm 61: int parse_user_host_port(const char *, char **, char **, int *);
1.64 millert 62: int parse_uri(const char *, const char *, char **, char **, int *, char **);
1.10 markus 63: long convtime(const char *);
1.22 djm 64: char *tilde_expand_filename(const char *, uid_t);
1.25 dtucker 65: char *percent_expand(const char *, ...) __attribute__((__sentinel__));
1.31 djm 66: char *tohex(const void *, size_t);
1.26 djm 67: void sanitise_stdfd(void);
1.38 dtucker 68: void ms_subtract_diff(struct timeval *, int *);
69: void ms_to_timeval(struct timeval *, int);
1.68 dtucker 70: void monotime_ts(struct timespec *);
71: void monotime_tv(struct timeval *);
1.49 dtucker 72: time_t monotime(void);
1.55 dtucker 73: double monotime_double(void);
1.50 djm 74: void lowercase(char *s);
1.54 millert 75: int unix_listener(const char *, int, int);
1.64 millert 76: int valid_domain(char *, int, const char **);
1.69 dtucker 77: const char *atoi_err(const char *, int *);
1.71 ! djm 78: int parse_absolute_time(const char *, uint64_t *);
! 79: void format_absolute_time(uint64_t, char *, size_t);
1.1 markus 80:
1.10 markus 81: struct passwd *pwcopy(struct passwd *);
1.37 dtucker 82: const char *ssh_gai_strerror(int);
1.5 mouring 83:
1.6 mouring 84: typedef struct arglist arglist;
85: struct arglist {
1.12 markus 86: char **list;
1.17 avsm 87: u_int num;
88: u_int nalloc;
1.6 mouring 89: };
1.29 djm 90: void addargs(arglist *, char *, ...)
91: __attribute__((format(printf, 2, 3)));
92: void replacearg(arglist *, u_int, char *, ...)
93: __attribute__((format(printf, 3, 4)));
94: void freeargs(arglist *);
1.14 djm 95:
1.65 djm 96: int tun_open(int, int, char **);
1.28 reyk 97:
98: /* Common definitions for ssh tunnel device forwarding */
99: #define SSH_TUNMODE_NO 0x00
100: #define SSH_TUNMODE_POINTOPOINT 0x01
101: #define SSH_TUNMODE_ETHERNET 0x02
102: #define SSH_TUNMODE_DEFAULT SSH_TUNMODE_POINTOPOINT
103: #define SSH_TUNMODE_YES (SSH_TUNMODE_POINTOPOINT|SSH_TUNMODE_ETHERNET)
104:
105: #define SSH_TUNID_ANY 0x7fffffff
106: #define SSH_TUNID_ERR (SSH_TUNID_ANY - 1)
107: #define SSH_TUNID_MAX (SSH_TUNID_ANY - 2)
1.54 millert 108:
109: /* Fake port to indicate that host field is really a path. */
110: #define PORT_STREAMLOCAL -2
1.31 djm 111:
112: /* Functions to extract or store big-endian words of various sizes */
113: u_int64_t get_u64(const void *)
1.53 djm 114: __attribute__((__bounded__( __minbytes__, 1, 8)));
1.31 djm 115: u_int32_t get_u32(const void *)
1.53 djm 116: __attribute__((__bounded__( __minbytes__, 1, 4)));
1.31 djm 117: u_int16_t get_u16(const void *)
1.53 djm 118: __attribute__((__bounded__( __minbytes__, 1, 2)));
1.31 djm 119: void put_u64(void *, u_int64_t)
1.53 djm 120: __attribute__((__bounded__( __minbytes__, 1, 8)));
1.31 djm 121: void put_u32(void *, u_int32_t)
1.53 djm 122: __attribute__((__bounded__( __minbytes__, 1, 4)));
1.31 djm 123: void put_u16(void *, u_int16_t)
1.53 djm 124: __attribute__((__bounded__( __minbytes__, 1, 2)));
1.52 djm 125:
126: /* Little-endian store/load, used by umac.c */
127: u_int32_t get_u32_le(const void *)
1.53 djm 128: __attribute__((__bounded__(__minbytes__, 1, 4)));
1.52 djm 129: void put_u32_le(void *, u_int32_t)
1.53 djm 130: __attribute__((__bounded__(__minbytes__, 1, 4)));
1.44 djm 131:
132: struct bwlimit {
133: size_t buflen;
134: u_int64_t rate, thresh, lamt;
135: struct timeval bwstart, bwend;
136: };
137:
138: void bandwidth_limit_init(struct bwlimit *, u_int64_t, size_t);
139: void bandwidth_limit(struct bwlimit *, size_t);
1.31 djm 140:
1.46 djm 141: int parse_ipqos(const char *);
1.48 stevesk 142: const char *iptos2str(int);
1.47 djm 143: void mktemp_proto(char *, size_t);
1.62 djm 144:
145: void child_set_env(char ***envp, u_int *envsizep, const char *name,
146: const char *value);
147:
148: int argv_split(const char *, int *, char ***);
149: char *argv_assemble(int, char **argv);
1.63 djm 150: int exited_cleanly(pid_t, const char *, const char *, int);
1.62 djm 151:
152: struct stat;
153: int safe_path(const char *, struct stat *, const char *, uid_t,
154: char *, size_t);
155: int safe_path_fd(int, const char *, struct passwd *,
156: char *err, size_t errlen);
1.36 djm 157:
158: /* readpass.c */
159:
160: #define RP_ECHO 0x0001
161: #define RP_ALLOW_STDIN 0x0002
162: #define RP_ALLOW_EOF 0x0004
163: #define RP_USE_ASKPASS 0x0008
164:
165: char *read_passphrase(const char *, int);
166: int ask_permission(const char *, ...) __attribute__((format(printf, 1, 2)));
167: int read_keyfile_line(FILE *, const char *, char *, size_t, u_long *);
1.59 deraadt 168:
169: #define MINIMUM(a, b) (((a) < (b)) ? (a) : (b))
170: #define MAXIMUM(a, b) (((a) > (b)) ? (a) : (b))
171: #define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
1.36 djm 172:
1.31 djm 173: #endif /* _MISC_H */
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