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Diffstat (limited to 'ssh.h')
| -rw-r--r-- | ssh.h | 589 |
1 files changed, 589 insertions, 0 deletions
@@ -0,0 +1,589 @@ +/* + +ssh.h + +Author: Tatu Ylonen <ylo@cs.hut.fi> + +Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland + All rights reserved + +Created: Fri Mar 17 17:09:37 1995 ylo + +Generic header file for ssh. + +*/ + +/* RCSID("$Id: ssh.h,v 1.1 1999/10/27 03:42:45 damien Exp $"); */ + +#ifndef SSH_H +#define SSH_H + +#include "rsa.h" +#include "cipher.h" + +/* The default cipher used if IDEA is not supported by the remote host. + It is recommended that this be one of the mandatory ciphers (DES, 3DES), + though that is not required. */ +#define SSH_FALLBACK_CIPHER SSH_CIPHER_3DES + +/* Cipher used for encrypting authentication files. */ +#define SSH_AUTHFILE_CIPHER SSH_CIPHER_3DES + +/* Default port number. */ +#define SSH_DEFAULT_PORT 22 + +/* Maximum number of TCP/IP ports forwarded per direction. */ +#define SSH_MAX_FORWARDS_PER_DIRECTION 100 + +/* Maximum number of RSA authentication identity files that can be specified + in configuration files or on the command line. */ +#define SSH_MAX_IDENTITY_FILES 100 + +/* Major protocol version. Different version indicates major incompatiblity + that prevents communication. */ +#define PROTOCOL_MAJOR 1 + +/* Minor protocol version. Different version indicates minor incompatibility + that does not prevent interoperation. */ +#define PROTOCOL_MINOR 5 + +/* Name for the service. The port named by this service overrides the default + port if present. */ +#define SSH_SERVICE_NAME "ssh" + +#ifndef ETCDIR +#define ETCDIR "/etc" +#endif /* ETCDIR */ + +#define PIDDIR "/var/run" + +/* System-wide file containing host keys of known hosts. This file should be + world-readable. */ +#define SSH_SYSTEM_HOSTFILE ETCDIR "/ssh_known_hosts" + +/* HOST_KEY_FILE /etc/ssh_host_key, + SERVER_CONFIG_FILE /etc/sshd_config, +and HOST_CONFIG_FILE /etc/ssh_config +are all defined in Makefile.in. Of these, ssh_host_key should be readable +only by root, whereas ssh_config should be world-readable. */ + +#define HOST_KEY_FILE ETCDIR "/ssh_host_key" +#define SERVER_CONFIG_FILE ETCDIR "/sshd_config" +#define HOST_CONFIG_FILE ETCDIR "/ssh_config" + +#define SSH_PROGRAM "/usr/bin/ssh" + +/* The process id of the daemon listening for connections is saved + here to make it easier to kill the correct daemon when necessary. */ +#define SSH_DAEMON_PID_FILE PIDDIR "/sshd.pid" + +/* The directory in user\'s home directory in which the files reside. + The directory should be world-readable (though not all files are). */ +#define SSH_USER_DIR ".ssh" + +/* Per-user file containing host keys of known hosts. This file need + not be readable by anyone except the user him/herself, though this does + not contain anything particularly secret. */ +#define SSH_USER_HOSTFILE "~/.ssh/known_hosts" + +/* Name of the default file containing client-side authentication key. + This file should only be readable by the user him/herself. */ +#define SSH_CLIENT_IDENTITY ".ssh/identity" + +/* Configuration file in user\'s home directory. This file need not be + readable by anyone but the user him/herself, but does not contain + anything particularly secret. If the user\'s home directory resides + on an NFS volume where root is mapped to nobody, this may need to be + world-readable. */ +#define SSH_USER_CONFFILE ".ssh/config" + +/* File containing a list of those rsa keys that permit logging in as + this user. This file need not be + readable by anyone but the user him/herself, but does not contain + anything particularly secret. If the user\'s home directory resides + on an NFS volume where root is mapped to nobody, this may need to be + world-readable. (This file is read by the daemon which is running as + root.) */ +#define SSH_USER_PERMITTED_KEYS ".ssh/authorized_keys" + +/* Per-user and system-wide ssh "rc" files. These files are executed with + /bin/sh before starting the shell or command if they exist. They + will be passed "proto cookie" as arguments if X11 forwarding with + spoofing is in use. xauth will be run if neither of these exists. */ +#define SSH_USER_RC ".ssh/rc" +#define SSH_SYSTEM_RC ETCDIR "/sshrc" + +/* Ssh-only version of /etc/hosts.equiv. */ +#define SSH_HOSTS_EQUIV ETCDIR "/shosts.equiv" + +/* Additionally, the daemon may use ~/.rhosts and /etc/hosts.equiv if + rhosts authentication is enabled. */ + +/* Name of the environment variable containing the pathname of the + authentication socket. */ +#define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK" + +/* Force host key length and server key length to differ by at least this + many bits. This is to make double encryption with rsaref work. */ +#define SSH_KEY_BITS_RESERVED 128 + +/* Length of the session key in bytes. (Specified as 256 bits in the + protocol.) */ +#define SSH_SESSION_KEY_LENGTH 32 + +/* Name of Kerberos service for SSH to use. */ +#define KRB4_SERVICE_NAME "rcmd" + +/* Authentication methods. New types can be added, but old types should not + be removed for compatibility. The maximum allowed value is 31. */ +#define SSH_AUTH_RHOSTS 1 +#define SSH_AUTH_RSA 2 +#define SSH_AUTH_PASSWORD 3 +#define SSH_AUTH_RHOSTS_RSA 4 + /* 5 is TIS */ +#define SSH_AUTH_KERBEROS 6 +#define SSH_PASS_KERBEROS_TGT 7 + /* 8 to 15 are reserved */ +#define SSH_PASS_AFS_TOKEN 21 + +/* Protocol flags. These are bit masks. */ +#define SSH_PROTOFLAG_SCREEN_NUMBER 1 /* X11 forwarding includes screen */ +#define SSH_PROTOFLAG_HOST_IN_FWD_OPEN 2 /* forwarding opens contain host */ + +/* Definition of message types. New values can be added, but old values + should not be removed or without careful consideration of the consequences + for compatibility. The maximum value is 254; value 255 is reserved + for future extension. */ +/* Message name */ /* msg code */ /* arguments */ +#define SSH_MSG_NONE 0 /* no message */ +#define SSH_MSG_DISCONNECT 1 /* cause (string) */ +#define SSH_SMSG_PUBLIC_KEY 2 /* ck,msk,srvk,hostk */ +#define SSH_CMSG_SESSION_KEY 3 /* key (BIGNUM) */ +#define SSH_CMSG_USER 4 /* user (string) */ +#define SSH_CMSG_AUTH_RHOSTS 5 /* user (string) */ +#define SSH_CMSG_AUTH_RSA 6 /* modulus (BIGNUM) */ +#define SSH_SMSG_AUTH_RSA_CHALLENGE 7 /* int (BIGNUM) */ +#define SSH_CMSG_AUTH_RSA_RESPONSE 8 /* int (BIGNUM) */ +#define SSH_CMSG_AUTH_PASSWORD 9 /* pass (string) */ +#define SSH_CMSG_REQUEST_PTY 10 /* TERM, tty modes */ +#define SSH_CMSG_WINDOW_SIZE 11 /* row,col,xpix,ypix */ +#define SSH_CMSG_EXEC_SHELL 12 /* */ +#define SSH_CMSG_EXEC_CMD 13 /* cmd (string) */ +#define SSH_SMSG_SUCCESS 14 /* */ +#define SSH_SMSG_FAILURE 15 /* */ +#define SSH_CMSG_STDIN_DATA 16 /* data (string) */ +#define SSH_SMSG_STDOUT_DATA 17 /* data (string) */ +#define SSH_SMSG_STDERR_DATA 18 /* data (string) */ +#define SSH_CMSG_EOF 19 /* */ +#define SSH_SMSG_EXITSTATUS 20 /* status (int) */ +#define SSH_MSG_CHANNEL_OPEN_CONFIRMATION 21 /* channel (int) */ +#define SSH_MSG_CHANNEL_OPEN_FAILURE 22 /* channel (int) */ +#define SSH_MSG_CHANNEL_DATA 23 /* ch,data (int,str) */ +#define SSH_MSG_CHANNEL_CLOSE 24 /* channel (int) */ +#define SSH_MSG_CHANNEL_CLOSE_CONFIRMATION 25 /* channel (int) */ +/* SSH_CMSG_X11_REQUEST_FORWARDING 26 OBSOLETE */ +#define SSH_SMSG_X11_OPEN 27 /* channel (int) */ +#define SSH_CMSG_PORT_FORWARD_REQUEST 28 /* p,host,hp (i,s,i) */ +#define SSH_MSG_PORT_OPEN 29 /* ch,h,p (i,s,i) */ +#define SSH_CMSG_AGENT_REQUEST_FORWARDING 30 /* */ +#define SSH_SMSG_AGENT_OPEN 31 /* port (int) */ +#define SSH_MSG_IGNORE 32 /* string */ +#define SSH_CMSG_EXIT_CONFIRMATION 33 /* */ +#define SSH_CMSG_X11_REQUEST_FORWARDING 34 /* proto,data (s,s) */ +#define SSH_CMSG_AUTH_RHOSTS_RSA 35 /* user,mod (s,mpi) */ +#define SSH_MSG_DEBUG 36 /* string */ +#define SSH_CMSG_REQUEST_COMPRESSION 37 /* level 1-9 (int) */ +#define SSH_CMSG_MAX_PACKET_SIZE 38 /* size 4k-1024k (int) */ +#define SSH_CMSG_AUTH_TIS 39 /* this is proto-1.5, but we ignore TIS */ +#define SSH_SMSG_AUTH_TIS_CHALLENGE 40 +#define SSH_CMSG_AUTH_TIS_RESPONSE 41 + +#define SSH_CMSG_AUTH_KERBEROS 42 /* (KTEXT) */ +#define SSH_SMSG_AUTH_KERBEROS_RESPONSE 43 /* (KTEXT) */ +#define SSH_CMSG_HAVE_KERBEROS_TGT 44 /* credentials (s) */ +#define SSH_CMSG_HAVE_AFS_TOKEN 65 /* token (s) */ + + +/* Includes that need definitions above. */ + +#include "readconf.h" + +/*------------ definitions for login.c -------------*/ + +/* Returns the time when the user last logged in. Returns 0 if the + information is not available. This must be called before record_login. + The host from which the user logged in is stored in buf. */ +unsigned long get_last_login_time(uid_t uid, const char *logname, + char *buf, unsigned int bufsize); + +/* Records that the user has logged in. This does many things normally + done by login(1). */ +void record_login(int pid, const char *ttyname, const char *user, uid_t uid, + const char *host, struct sockaddr_in *addr); + +/* Records that the user has logged out. This does many thigs normally + done by login(1) or init. */ +void record_logout(int pid, const char *ttyname); + +/*------------ definitions for sshconnect.c ----------*/ + +/* Opens a TCP/IP connection to the remote server on the given host. If + port is 0, the default port will be used. If anonymous is zero, + a privileged port will be allocated to make the connection. + This requires super-user privileges if anonymous is false. + Connection_attempts specifies the maximum number of tries, one per + second. This returns true on success, and zero on failure. If the + connection is successful, this calls packet_set_connection for the + connection. */ +int ssh_connect(const char *host, struct sockaddr_in *hostaddr, + int port, int connection_attempts, + int anonymous, uid_t original_real_uid, + const char *proxy_command); + +/* Starts a dialog with the server, and authenticates the current user on the + server. This does not need any extra privileges. The basic connection + to the server must already have been established before this is called. + If login fails, this function prints an error and never returns. + This initializes the random state, and leaves it initialized (it will also + have references from the packet module). */ +void ssh_login(int host_key_valid, RSA *host_key, const char *host, + struct sockaddr_in *hostaddr, Options *options, + uid_t original_real_uid); + +/*------------ Definitions for various authentication methods. -------*/ + +/* Tries to authenticate the user using the .rhosts file. Returns true if + authentication succeeds. If ignore_rhosts is non-zero, this will not + consider .rhosts and .shosts (/etc/hosts.equiv will still be used). + If strict_modes is true, checks ownership and modes of .rhosts/.shosts. */ +int auth_rhosts(struct passwd *pw, const char *client_user, + int ignore_rhosts, int strict_modes); + +/* Tries to authenticate the user using the .rhosts file and the host using + its host key. Returns true if authentication succeeds. */ +int auth_rhosts_rsa(struct passwd *pw, const char *client_user, + unsigned int bits, BIGNUM *client_host_key_e, + BIGNUM *client_host_key_n, int ignore_rhosts, + int strict_modes); + +/* Tries to authenticate the user using password. Returns true if + authentication succeeds. */ +int auth_password(struct passwd *pw, const char *password); + +/* Performs the RSA authentication dialog with the client. This returns + 0 if the client could not be authenticated, and 1 if authentication was + successful. This may exit if there is a serious protocol violation. */ +int auth_rsa(struct passwd *pw, BIGNUM *client_n, int strict_modes); + +/* Parses an RSA key (number of bits, e, n) from a string. Moves the pointer + over the key. Skips any whitespace at the beginning and at end. */ +int auth_rsa_read_key(char **cpp, unsigned int *bitsp, BIGNUM *e, BIGNUM *n); + +/* Returns the name of the machine at the other end of the socket. The + returned string should be freed by the caller. */ +char *get_remote_hostname(int socket); + +/* Return the canonical name of the host in the other side of the current + connection (as returned by packet_get_connection). The host name is + cached, so it is efficient to call this several times. */ +const char *get_canonical_hostname(void); + +/* Returns the remote IP address as an ascii string. The value need not be + freed by the caller. */ +const char *get_remote_ipaddr(void); + +/* Returns the port number of the peer of the socket. */ +int get_peer_port(int sock); + +/* Returns the port number of the remote host. */ +int get_remote_port(void); + +/* Tries to match the host name (which must be in all lowercase) against the + comma-separated sequence of subpatterns (each possibly preceded by ! to + indicate negation). Returns true if there is a positive match; zero + otherwise. */ +int match_hostname(const char *host, const char *pattern, unsigned int len); + +/* Checks whether the given host is already in the list of our known hosts. + Returns HOST_OK if the host is known and has the specified key, + HOST_NEW if the host is not known, and HOST_CHANGED if the host is known + but used to have a different host key. The host must be in all lowercase. */ +typedef enum { HOST_OK, HOST_NEW, HOST_CHANGED } HostStatus; +HostStatus check_host_in_hostfile(const char *filename, + const char *host, unsigned int bits, + BIGNUM *e, BIGNUM *n, + BIGNUM *ke, BIGNUM *kn); + +/* Appends an entry to the host file. Returns false if the entry + could not be appended. */ +int add_host_to_hostfile(const char *filename, const char *host, + unsigned int bits, BIGNUM *e, BIGNUM *n); + +/* Performs the RSA authentication challenge-response dialog with the client, + and returns true (non-zero) if the client gave the correct answer to + our challenge; returns zero if the client gives a wrong answer. */ +int auth_rsa_challenge_dialog(unsigned int bits, BIGNUM *e, BIGNUM *n); + +/* Reads a passphrase from /dev/tty with echo turned off. Returns the + passphrase (allocated with xmalloc). Exits if EOF is encountered. + If from_stdin is true, the passphrase will be read from stdin instead. */ +char *read_passphrase(const char *prompt, int from_stdin); + +/* Saves the authentication (private) key in a file, encrypting it with + passphrase. The identification of the file (lowest 64 bits of n) + will precede the key to provide identification of the key without + needing a passphrase. */ +int save_private_key(const char *filename, const char *passphrase, + RSA *private_key, const char *comment); + +/* Loads the public part of the key file (public key and comment). + Returns 0 if an error occurred; zero if the public key was successfully + read. The comment of the key is returned in comment_return if it is + non-NULL; the caller must free the value with xfree. */ +int load_public_key(const char *filename, RSA *pub, + char **comment_return); + +/* Loads the private key from the file. Returns 0 if an error is encountered + (file does not exist or is not readable, or passphrase is bad). + This initializes the private key. The comment of the key is returned + in comment_return if it is non-NULL; the caller must free the value + with xfree. */ +int load_private_key(const char *filename, const char *passphrase, + RSA *private_key, char **comment_return); + +/*------------ Definitions for logging. -----------------------*/ + +/* Supported syslog facilities. */ +typedef enum +{ + SYSLOG_FACILITY_DAEMON, + SYSLOG_FACILITY_USER, + SYSLOG_FACILITY_AUTH, + SYSLOG_FACILITY_LOCAL0, + SYSLOG_FACILITY_LOCAL1, + SYSLOG_FACILITY_LOCAL2, + SYSLOG_FACILITY_LOCAL3, + SYSLOG_FACILITY_LOCAL4, + SYSLOG_FACILITY_LOCAL5, + SYSLOG_FACILITY_LOCAL6, + SYSLOG_FACILITY_LOCAL7 +} SyslogFacility; + +/* Initializes logging. If debug is non-zero, debug() will output something. + If quiet is non-zero, none of these will log send anything to syslog + (but maybe to stderr). */ +void log_init(char *av0, int on_stderr, int debug, int quiet, + SyslogFacility facility); + +/* Outputs a message to syslog or stderr, depending on the implementation. + The format must guarantee that the final message does not exceed 1024 + characters. The message should not contain newline. */ +void log(const char *fmt, ...); + +/* Outputs a message to syslog or stderr, depending on the implementation. + The format must guarantee that the final message does not exceed 1024 + characters. The message should not contain newline. */ +void debug(const char *fmt, ...); + +/* Outputs a message to syslog or stderr, depending on the implementation. + The format must guarantee that the final message does not exceed 1024 + characters. The message should not contain newline. */ +void error(const char *fmt, ...); + +/* Outputs a message to syslog or stderr, depending on the implementation. + The format must guarantee that the final message does not exceed 1024 + characters. The message should not contain newline. + This call never returns. */ +void fatal(const char *fmt, ...); + +/* Registers a cleanup function to be called by fatal() before exiting. + It is permissible to call fatal_remove_cleanup for the function itself + from the function. */ +void fatal_add_cleanup(void (*proc)(void *context), void *context); + +/* Removes a cleanup frunction to be called at fatal(). */ +void fatal_remove_cleanup(void (*proc)(void *context), void *context); + +/*---------------- definitions for channels ------------------*/ + +/* Sets specific protocol options. */ +void channel_set_options(int hostname_in_open); + +/* Allocate a new channel object and set its type and socket. Remote_name + must have been allocated with xmalloc; this will free it when the channel + is freed. */ +int channel_allocate(int type, int sock, char *remote_name); + +/* Free the channel and close its socket. */ +void channel_free(int channel); + +/* Add any bits relevant to channels in select bitmasks. */ +void channel_prepare_select(fd_set *readset, fd_set *writeset); + +/* After select, perform any appropriate operations for channels which + have events pending. */ +void channel_after_select(fd_set *readset, fd_set *writeset); + +/* If there is data to send to the connection, send some of it now. */ +void channel_output_poll(void); + +/* This is called when a packet of type CHANNEL_DATA has just been received. + The message type has already been consumed, but channel number and data + is still there. */ +void channel_input_data(int payload_len); + +/* Returns true if no channel has too much buffered data. */ +int channel_not_very_much_buffered_data(void); + +/* This is called after receiving CHANNEL_CLOSE. */ +void channel_input_close(void); + +/* This is called after receiving CHANNEL_CLOSE_CONFIRMATION. */ +void channel_input_close_confirmation(void); + +/* This is called after receiving CHANNEL_OPEN_CONFIRMATION. */ +void channel_input_open_confirmation(void); + +/* This is called after receiving CHANNEL_OPEN_FAILURE from the other side. */ +void channel_input_open_failure(void); + +/* This closes any sockets that are listening for connections; this removes + any unix domain sockets. */ +void channel_stop_listening(void); + +/* Closes the sockets of all channels. This is used to close extra file + descriptors after a fork. */ +void channel_close_all(void); + +/* Returns the maximum file descriptor number used by the channels. */ +int channel_max_fd(void); + +/* Returns true if there is still an open channel over the connection. */ +int channel_still_open(void); + +/* Returns a string containing a list of all open channels. The list is + suitable for displaying to the user. It uses crlf instead of newlines. + The caller should free the string with xfree. */ +char *channel_open_message(void); + +/* Initiate forwarding of connections to local port "port" through the secure + channel to host:port from remote side. This never returns if there + was an error. */ +void channel_request_local_forwarding(int port, const char *host, + int remote_port); + +/* Initiate forwarding of connections to port "port" on remote host through + the secure channel to host:port from local side. This never returns + if there was an error. This registers that open requests for that + port are permitted. */ +void channel_request_remote_forwarding(int port, const char *host, + int remote_port); + +/* Permits opening to any host/port in SSH_MSG_PORT_OPEN. This is usually + called by the server, because the user could connect to any port anyway, + and the server has no way to know but to trust the client anyway. */ +void channel_permit_all_opens(void); + +/* This is called after receiving CHANNEL_FORWARDING_REQUEST. This initates + listening for the port, and sends back a success reply (or disconnect + message if there was an error). This never returns if there was an + error. */ +void channel_input_port_forward_request(int is_root); + +/* This is called after receiving PORT_OPEN message. This attempts to connect + to the given host:port, and sends back CHANNEL_OPEN_CONFIRMATION or + CHANNEL_OPEN_FAILURE. */ +void channel_input_port_open(int payload_len); + +/* Creates a port for X11 connections, and starts listening for it. + Returns the display name, or NULL if an error was encountered. */ +char *x11_create_display(int screen); + +/* Creates an internet domain socket for listening for X11 connections. + Returns a suitable value for the DISPLAY variable, or NULL if an error + occurs. */ +char *x11_create_display_inet(int screen); + +/* This is called when SSH_SMSG_X11_OPEN is received. The packet contains + the remote channel number. We should do whatever we want, and respond + with either SSH_MSG_OPEN_CONFIRMATION or SSH_MSG_OPEN_FAILURE. */ +void x11_input_open(int payload_len); + +/* Requests forwarding of X11 connections. This should be called on the + client only. */ +void x11_request_forwarding(void); + +/* Requests forwarding for X11 connections, with authentication spoofing. + This should be called in the client only. */ +void x11_request_forwarding_with_spoofing(const char *proto, const char *data); + +/* Local Xauthority file (server only). */ +extern char *xauthfile; + +/* Sends a message to the server to request authentication fd forwarding. */ +void auth_request_forwarding(void); + +/* Returns the name of the forwarded authentication socket. Returns NULL + if there is no forwarded authentication socket. The returned value points + to a static buffer. */ +char *auth_get_socket_name(void); + +/* This if called to process SSH_CMSG_AGENT_REQUEST_FORWARDING on the server. + This starts forwarding authentication requests. */ +void auth_input_request_forwarding(struct passwd *pw); + +/* This is called to process an SSH_SMSG_AGENT_OPEN message. */ +void auth_input_open_request(void); + +/* Returns true if the given string matches the pattern (which may contain + ? and * as wildcards), and zero if it does not match. */ +int match_pattern(const char *s, const char *pattern); + +/* Expands tildes in the file name. Returns data allocated by xmalloc. + Warning: this calls getpw*. */ +char *tilde_expand_filename(const char *filename, uid_t my_uid); + +/* Performs the interactive session. This handles data transmission between + the client and the program. Note that the notion of stdin, stdout, and + stderr in this function is sort of reversed: this function writes to + stdin (of the child program), and reads from stdout and stderr (of the + child program). */ +void server_loop(int pid, int fdin, int fdout, int fderr); + +/* Client side main loop for the interactive session. */ +int client_loop(int have_pty, int escape_char); + +/* Linked list of custom environment strings (see auth-rsa.c). */ +struct envstring { + struct envstring *next; + char *s; +}; + +#ifdef KRB4 +#include <krb.h> + +/* Performs Kerberos v4 mutual authentication with the client. This returns + 0 if the client could not be authenticated, and 1 if authentication was + successful. This may exit if there is a serious protocol violation. */ +int auth_krb4(const char *server_user, KTEXT auth, char **client); +int ssh_tf_init(uid_t uid); + +#ifdef AFS +#include <kafs.h> + +/* Accept passed Kerberos v4 ticket-granting ticket and AFS tokens. */ +int auth_kerberos_tgt(struct passwd *pw, const char *string); +int auth_afs_token(char *server_user, uid_t uid, const char *string); + +int creds_to_radix(CREDENTIALS *creds, unsigned char *buf); +int radix_to_creds(const char *buf, CREDENTIALS *creds); +#endif /* AFS */ + +#endif /* KRB4 */ + +#ifdef SKEY +#include <skey.h> +char *skey_fake_keyinfo(char *username); +#endif /* SKEY */ + +#endif /* SSH_H */ |