IABSD.fr/src/usr.bin/ssh/sshconnect.h

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• Author : dtucker
  Date : 2025-03-01 06:11:26
  Hash : c5a3c23c
  Message : Allow %-token and environment variable expansion in User, with the exception of %r and %C which are self-referential. Requested in bz#3477, ok djm@, man page improvements jmc@

• usr.bin/ssh/sshconnect.h

• /* $OpenBSD: sshconnect.h,v 1.49 2025/03/01 06:11:26 dtucker Exp $ */
  
  /*
   * Copyright (c) 2000 Markus Friedl.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  struct sshkey;
  
  typedef struct Sensitive Sensitive;
  struct Sensitive {
  	struct sshkey	**keys;
  	int		nkeys;
  };
  
  struct ssh_conn_info {
  	char *conn_hash_hex;
  	char *shorthost;
  	char *uidstr;
  	char *keyalias;
  	char *thishost;
  	char *host_arg;
  	char *portstr;
  	char *remhost;
  	char *remuser;
  	char *homedir;
  	char *locuser;
  	char *jmphost;
  };
  
  struct addrinfo;
  struct ssh;
  struct hostkeys;
  struct ssh_conn_info;
  
  /* default argument for client percent expansions, minus remote user */
  #define DEFAULT_CLIENT_PERCENT_EXPAND_ARGS_NOUSER(conn_info) \
  	"L", conn_info->shorthost, \
  	"i", conn_info->uidstr, \
  	"k", conn_info->keyalias, \
  	"l", conn_info->thishost, \
  	"n", conn_info->host_arg, \
  	"p", conn_info->portstr, \
  	"d", conn_info->homedir, \
  	"h", conn_info->remhost, \
  	"u", conn_info->locuser, \
  	"j", conn_info->jmphost
  
  /* same plus remote user and hash which has user as a component */
  #define DEFAULT_CLIENT_PERCENT_EXPAND_ARGS(conn_info) \
  	DEFAULT_CLIENT_PERCENT_EXPAND_ARGS_NOUSER(conn_info), \
  	"C", conn_info->conn_hash_hex, \
  	"r", conn_info->remuser
  
  int	 ssh_connect(struct ssh *, const char *, const char *,
  	    struct addrinfo *, struct sockaddr_storage *, u_short,
  	    int, int *, int);
  void	 ssh_kill_proxy_command(void);
  
  void	 ssh_login(struct ssh *, Sensitive *, const char *,
      struct sockaddr *, u_short, struct passwd *, int,
      const struct ssh_conn_info *);
  
  int	 verify_host_key(char *, struct sockaddr *, struct sshkey *,
      const struct ssh_conn_info *);
  
  void	 get_hostfile_hostname_ipaddr(char *, struct sockaddr *, u_short,
      char **, char **);
  
  void	 ssh_kex2(struct ssh *ssh, char *, struct sockaddr *, u_short,
      const struct ssh_conn_info *);
  
  void	 ssh_userauth2(struct ssh *ssh, const char *, const char *,
      char *, Sensitive *);
  
  int	 ssh_local_cmd(const char *);
  
  void	 maybe_add_key_to_agent(const char *, struct sshkey *,
      const char *, const char *);
  
  void	 load_hostkeys_command(struct hostkeys *, const char *,
      const char *, const struct ssh_conn_info *,
      const struct sshkey *, const char *);
  
  int hostkey_accepted_by_hostkeyalgs(const struct sshkey *);