1 | /* $OpenBSD: servconf.h,v 1.59 2002/07/30 17:03:55 markus Exp $ */ |
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2 | |
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3 | /* |
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4 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
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5 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
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6 | * All rights reserved |
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7 | * Definitions for server configuration data and for the functions reading it. |
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8 | * |
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9 | * As far as I am concerned, the code I have written for this software |
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10 | * can be used freely for any purpose. Any derived versions of this |
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11 | * software must be clearly marked as such, and if the derived work is |
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12 | * incompatible with the protocol description in the RFC file, it must be |
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13 | * called by a name other than "ssh" or "Secure Shell". |
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14 | */ |
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15 | |
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16 | #ifndef SERVCONF_H |
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17 | #define SERVCONF_H |
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18 | |
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19 | #define MAX_PORTS 256 /* Max # ports. */ |
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20 | |
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21 | #define MAX_ALLOW_USERS 256 /* Max # users on allow list. */ |
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22 | #define MAX_DENY_USERS 256 /* Max # users on deny list. */ |
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23 | #define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */ |
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24 | #define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */ |
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25 | #define MAX_SUBSYSTEMS 256 /* Max # subsystems. */ |
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26 | #define MAX_HOSTKEYS 256 /* Max # hostkeys. */ |
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27 | |
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28 | /* permit_root_login */ |
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29 | #define PERMIT_NOT_SET -1 |
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30 | #define PERMIT_NO 0 |
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31 | #define PERMIT_FORCED_ONLY 1 |
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32 | #define PERMIT_NO_PASSWD 2 |
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33 | #define PERMIT_YES 3 |
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34 | |
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35 | |
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36 | typedef struct { |
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37 | u_int num_ports; |
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38 | u_int ports_from_cmdline; |
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39 | u_short ports[MAX_PORTS]; /* Port number to listen on. */ |
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40 | char *listen_addr; /* Address on which the server listens. */ |
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41 | struct addrinfo *listen_addrs; /* Addresses on which the server listens. */ |
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42 | char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */ |
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43 | int num_host_key_files; /* Number of files for host keys. */ |
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44 | char *pid_file; /* Where to put our pid */ |
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45 | int server_key_bits;/* Size of the server key. */ |
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46 | int login_grace_time; /* Disconnect if no auth in this time |
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47 | * (sec). */ |
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48 | int key_regeneration_time; /* Server key lifetime (seconds). */ |
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49 | int permit_root_login; /* PERMIT_*, see above */ |
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50 | int ignore_rhosts; /* Ignore .rhosts and .shosts. */ |
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51 | int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts |
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52 | * for RhostsRsaAuth */ |
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53 | int print_motd; /* If true, print /etc/motd. */ |
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54 | int print_lastlog; /* If true, print lastlog */ |
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55 | int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */ |
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56 | int x11_display_offset; /* What DISPLAY number to start |
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57 | * searching at */ |
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58 | int x11_use_localhost; /* If true, use localhost for fake X11 server. */ |
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59 | char *xauth_location; /* Location of xauth program */ |
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60 | int strict_modes; /* If true, require string home dir modes. */ |
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61 | int keepalives; /* If true, set SO_KEEPALIVE. */ |
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62 | char *ciphers; /* Supported SSH2 ciphers. */ |
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63 | char *macs; /* Supported SSH2 macs. */ |
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64 | int protocol; /* Supported protocol versions. */ |
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65 | int gateway_ports; /* If true, allow remote connects to forwarded ports. */ |
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66 | SyslogFacility log_facility; /* Facility for system logging. */ |
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67 | LogLevel log_level; /* Level for system logging. */ |
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68 | int rhosts_authentication; /* If true, permit rhosts |
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69 | * authentication. */ |
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70 | int rhosts_rsa_authentication; /* If true, permit rhosts RSA |
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71 | * authentication. */ |
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72 | int hostbased_authentication; /* If true, permit ssh2 hostbased auth */ |
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73 | int hostbased_uses_name_from_packet_only; /* experimental */ |
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74 | int rsa_authentication; /* If true, permit RSA authentication. */ |
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75 | int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */ |
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76 | #ifdef GSSAPI |
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77 | int gss_authentication; |
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78 | int gss_keyex; |
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79 | int gss_use_session_ccache; /* If true, delegated credentials are |
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80 | * stored in a session specific cache */ |
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81 | int gss_cleanup_creds; /* If true, destroy cred cache on logout */ |
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82 | #endif |
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83 | #if defined(KRB4) || defined(KRB5) |
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84 | int kerberos_authentication; /* If true, permit Kerberos |
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85 | * authentication. */ |
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86 | int kerberos_or_local_passwd; /* If true, permit kerberos |
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87 | * and any other password |
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88 | * authentication mechanism, |
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89 | * such as SecurID or |
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90 | * /etc/passwd */ |
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91 | int kerberos_ticket_cleanup; /* If true, destroy ticket |
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92 | * file on logout. */ |
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93 | #endif |
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94 | #if defined(AFS) || defined(KRB5) |
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95 | int kerberos_tgt_passing; /* If true, permit Kerberos TGT |
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96 | * passing. */ |
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97 | #endif |
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98 | #ifdef KRB5 |
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99 | int kerberos524; /* If true, get k4 tickets from k5 tickets */ |
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100 | #endif |
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101 | #ifdef AFS |
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102 | int afs_token_passing; /* If true, permit AFS token passing. */ |
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103 | #endif |
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104 | int password_authentication; /* If true, permit password |
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105 | * authentication. */ |
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106 | int kbd_interactive_authentication; /* If true, permit */ |
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107 | int challenge_response_authentication; |
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108 | int permit_empty_passwd; /* If false, do not permit empty |
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109 | * passwords. */ |
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110 | int permit_user_env; /* If true, read ~/.ssh/environment */ |
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111 | int use_login; /* If true, login(1) is used */ |
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112 | int compression; /* If true, compression is allowed */ |
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113 | int allow_tcp_forwarding; |
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114 | u_int num_allow_users; |
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115 | char *allow_users[MAX_ALLOW_USERS]; |
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116 | u_int num_deny_users; |
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117 | char *deny_users[MAX_DENY_USERS]; |
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118 | u_int num_allow_groups; |
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119 | char *allow_groups[MAX_ALLOW_GROUPS]; |
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120 | u_int num_deny_groups; |
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121 | char *deny_groups[MAX_DENY_GROUPS]; |
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122 | |
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123 | u_int num_subsystems; |
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124 | char *subsystem_name[MAX_SUBSYSTEMS]; |
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125 | char *subsystem_command[MAX_SUBSYSTEMS]; |
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126 | |
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127 | int max_startups_begin; |
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128 | int max_startups_rate; |
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129 | int max_startups; |
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130 | char *banner; /* SSH-2 banner message */ |
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131 | int verify_reverse_mapping; /* cross-check ip and dns */ |
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132 | int client_alive_interval; /* |
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133 | * poke the client this often to |
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134 | * see if it's still there |
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135 | */ |
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136 | int client_alive_count_max; /* |
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137 | * If the client is unresponsive |
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138 | * for this many intervals above, |
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139 | * disconnect the session |
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140 | */ |
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141 | |
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142 | char *authorized_keys_file; /* File containing public keys */ |
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143 | char *authorized_keys_file2; |
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144 | int pam_authentication_via_kbd_int; |
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145 | } ServerOptions; |
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146 | |
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147 | void initialize_server_options(ServerOptions *); |
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148 | void read_server_config(ServerOptions *, const char *); |
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149 | void fill_default_server_options(ServerOptions *); |
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150 | int process_server_config_line(ServerOptions *, char *, const char *, int); |
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151 | |
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152 | |
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153 | #endif /* SERVCONF_H */ |
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