| /* $OpenBSD: misc.h,v 1.68 2017/11/25 06:46:22 dtucker Exp $ */ |
| |
| /* |
| * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| * All rights reserved |
| * |
| * As far as I am concerned, the code I have written for this software |
| * can be used freely for any purpose. Any derived versions of this |
| * software must be clearly marked as such, and if the derived work is |
| * incompatible with the protocol description in the RFC file, it must be |
| * called by a name other than "ssh" or "Secure Shell". |
| */ |
| |
| #ifndef _MISC_H |
| #define _MISC_H |
| |
| #include <sys/time.h> |
| #include <sys/types.h> |
| |
| /* Data structure for representing a forwarding request. */ |
| struct Forward { |
| char *listen_host; /* Host (address) to listen on. */ |
| int listen_port; /* Port to forward. */ |
| char *listen_path; /* Path to bind domain socket. */ |
| char *connect_host; /* Host to connect. */ |
| int connect_port; /* Port to connect on connect_host. */ |
| char *connect_path; /* Path to connect domain socket. */ |
| int allocated_port; /* Dynamically allocated listen port */ |
| int handle; /* Handle for dynamic listen ports */ |
| }; |
| |
| int forward_equals(const struct Forward *, const struct Forward *); |
| int bind_permitted(int, uid_t); |
| int daemonized(void); |
| |
| /* Common server and client forwarding options. */ |
| struct ForwardOptions { |
| int gateway_ports; /* Allow remote connects to forwarded ports. */ |
| mode_t streamlocal_bind_mask; /* umask for streamlocal binds */ |
| int streamlocal_bind_unlink; /* unlink socket before bind */ |
| }; |
| |
| /* misc.c */ |
| |
| char *chop(char *); |
| char *strdelim(char **); |
| int set_nonblock(int); |
| int unset_nonblock(int); |
| void set_nodelay(int); |
| int set_reuseaddr(int); |
| char *get_rdomain(int); |
| int set_rdomain(int, const char *); |
| int a2port(const char *); |
| int a2tun(const char *, int *); |
| char *put_host_port(const char *, u_short); |
| char *hpdelim(char **); |
| char *cleanhostname(char *); |
| char *colon(char *); |
| int parse_user_host_path(const char *, char **, char **, char **); |
| int parse_user_host_port(const char *, char **, char **, int *); |
| int parse_uri(const char *, const char *, char **, char **, int *, char **); |
| long convtime(const char *); |
| char *tilde_expand_filename(const char *, uid_t); |
| char *percent_expand(const char *, ...) __attribute__((__sentinel__)); |
| char *tohex(const void *, size_t); |
| void sanitise_stdfd(void); |
| void ms_subtract_diff(struct timeval *, int *); |
| void ms_to_timeval(struct timeval *, int); |
| void monotime_ts(struct timespec *); |
| void monotime_tv(struct timeval *); |
| time_t monotime(void); |
| double monotime_double(void); |
| void lowercase(char *s); |
| int unix_listener(const char *, int, int); |
| int valid_domain(char *, int, const char **); |
| |
| void sock_set_v6only(int); |
| |
| struct passwd *pwcopy(struct passwd *); |
| const char *ssh_gai_strerror(int); |
| |
| typedef struct arglist arglist; |
| struct arglist { |
| char **list; |
| u_int num; |
| u_int nalloc; |
| }; |
| void addargs(arglist *, char *, ...) |
| __attribute__((format(printf, 2, 3))); |
| void replacearg(arglist *, u_int, char *, ...) |
| __attribute__((format(printf, 3, 4))); |
| void freeargs(arglist *); |
| |
| int tun_open(int, int, char **); |
| |
| /* Common definitions for ssh tunnel device forwarding */ |
| #define SSH_TUNMODE_NO 0x00 |
| #define SSH_TUNMODE_POINTOPOINT 0x01 |
| #define SSH_TUNMODE_ETHERNET 0x02 |
| #define SSH_TUNMODE_DEFAULT SSH_TUNMODE_POINTOPOINT |
| #define SSH_TUNMODE_YES (SSH_TUNMODE_POINTOPOINT|SSH_TUNMODE_ETHERNET) |
| |
| #define SSH_TUNID_ANY 0x7fffffff |
| #define SSH_TUNID_ERR (SSH_TUNID_ANY - 1) |
| #define SSH_TUNID_MAX (SSH_TUNID_ANY - 2) |
| |
| /* Fake port to indicate that host field is really a path. */ |
| #define PORT_STREAMLOCAL -2 |
| |
| /* Functions to extract or store big-endian words of various sizes */ |
| u_int64_t get_u64(const void *) |
| __attribute__((__bounded__( __minbytes__, 1, 8))); |
| u_int32_t get_u32(const void *) |
| __attribute__((__bounded__( __minbytes__, 1, 4))); |
| u_int16_t get_u16(const void *) |
| __attribute__((__bounded__( __minbytes__, 1, 2))); |
| void put_u64(void *, u_int64_t) |
| __attribute__((__bounded__( __minbytes__, 1, 8))); |
| void put_u32(void *, u_int32_t) |
| __attribute__((__bounded__( __minbytes__, 1, 4))); |
| void put_u16(void *, u_int16_t) |
| __attribute__((__bounded__( __minbytes__, 1, 2))); |
| |
| /* Little-endian store/load, used by umac.c */ |
| u_int32_t get_u32_le(const void *) |
| __attribute__((__bounded__(__minbytes__, 1, 4))); |
| void put_u32_le(void *, u_int32_t) |
| __attribute__((__bounded__(__minbytes__, 1, 4))); |
| |
| struct bwlimit { |
| size_t buflen; |
| u_int64_t rate, thresh, lamt; |
| struct timeval bwstart, bwend; |
| }; |
| |
| void bandwidth_limit_init(struct bwlimit *, u_int64_t, size_t); |
| void bandwidth_limit(struct bwlimit *, size_t); |
| |
| int parse_ipqos(const char *); |
| const char *iptos2str(int); |
| void mktemp_proto(char *, size_t); |
| |
| void child_set_env(char ***envp, u_int *envsizep, const char *name, |
| const char *value); |
| |
| int argv_split(const char *, int *, char ***); |
| char *argv_assemble(int, char **argv); |
| int exited_cleanly(pid_t, const char *, const char *, int); |
| |
| #define SSH_SUBPROCESS_STDOUT_DISCARD (1) /* Discard stdout */ |
| #define SSH_SUBPROCESS_STDOUT_CAPTURE (1<<1) /* Redirect stdout */ |
| #define SSH_SUBPROCESS_STDERR_DISCARD (1<<2) /* Discard stderr */ |
| pid_t subprocess(const char *, struct passwd *, |
| const char *, int, char **, FILE **, u_int flags); |
| |
| struct stat; |
| int safe_path(const char *, struct stat *, const char *, uid_t, |
| char *, size_t); |
| int safe_path_fd(int, const char *, struct passwd *, |
| char *err, size_t errlen); |
| |
| /* readpass.c */ |
| |
| #define RP_ECHO 0x0001 |
| #define RP_ALLOW_STDIN 0x0002 |
| #define RP_ALLOW_EOF 0x0004 |
| #define RP_USE_ASKPASS 0x0008 |
| |
| char *read_passphrase(const char *, int); |
| int ask_permission(const char *, ...) __attribute__((format(printf, 1, 2))); |
| int read_keyfile_line(FILE *, const char *, char *, size_t, u_long *); |
| |
| #define MINIMUM(a, b) (((a) < (b)) ? (a) : (b)) |
| #define MAXIMUM(a, b) (((a) > (b)) ? (a) : (b)) |
| #define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y)) |
| |
| #endif /* _MISC_H */ |