summaryrefslogtreecommitdiff
path: root/source4/auth/auth.h
blob: ff7132c3ffc3cb6e1d2ec3a701f75224177fcfa1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
/* 
   Unix SMB/CIFS implementation.
   Standardised Authentication types
   Copyright (C) Andrew Bartlett   2001
   Copyright (C) Stefan Metzmacher 2005
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef _SAMBA_AUTH_H
#define _SAMBA_AUTH_H

extern const char *user_attrs[];

union netr_Validation;
struct netr_SamBaseInfo;
struct netr_SamInfo3;
struct loadparm_context;

/* modules can use the following to determine if the interface has changed
 * please increment the version number after each interface change
 * with a comment and maybe update struct auth_critical_sizes.
 */
/* version 1 - version from samba 3.0 - metze */
/* version 2 - initial samba4 version - metze */
/* version 3 - subsequent samba4 version - abartlet */
/* version 4 - subsequent samba4 version - metze */
/* version 0 - till samba4 is stable - metze */
#define AUTH_INTERFACE_VERSION 0

#define USER_INFO_CASE_INSENSITIVE_USERNAME 0x01 /* username may be in any case */
#define USER_INFO_CASE_INSENSITIVE_PASSWORD 0x02 /* password may be in any case */
#define USER_INFO_DONT_CHECK_UNIX_ACCOUNT   0x04 /* dont check unix account status */
#define USER_INFO_INTERACTIVE_LOGON         0x08 /* dont check unix account status */

enum auth_password_state {
	AUTH_PASSWORD_RESPONSE,
	AUTH_PASSWORD_HASH,
	AUTH_PASSWORD_PLAIN
};

struct auth_usersupplied_info
{
	const char *workstation_name;
	struct socket_address *remote_host;

	uint32_t logon_parameters;

	bool mapped_state;
	/* the values the client gives us */
	struct {
		const char *account_name;
		const char *domain_name;
	} client, mapped;

	enum auth_password_state password_state;

	union {
		struct {
			DATA_BLOB lanman;
			DATA_BLOB nt;
		} response;
		struct {
			struct samr_Password *lanman;
			struct samr_Password *nt;
		} hash;
		
		char *plaintext;
	} password;
	uint32_t flags;
};

struct auth_serversupplied_info 
{
	struct dom_sid *account_sid;
	struct dom_sid *primary_group_sid;

	size_t n_domain_groups;
	struct dom_sid **domain_groups;

	DATA_BLOB user_session_key;
	DATA_BLOB lm_session_key;

	const char *account_name;
	const char *domain_name;

	const char *full_name;
	const char *logon_script;
	const char *profile_path;
	const char *home_directory;
	const char *home_drive;
	const char *logon_server;
	
	NTTIME last_logon;
	NTTIME last_logoff;
	NTTIME acct_expiry;
	NTTIME last_password_change;
	NTTIME allow_password_change;
	NTTIME force_password_change;

	uint16_t logon_count;
	uint16_t bad_password_count;

	uint32_t acct_flags;

	bool authenticated;
};

struct auth_method_context;
struct auth_check_password_request;

struct auth_operations {
	const char *name;

	/* If you are using this interface, then you are probably
	 * getting something wrong.  This interface is only for
	 * security=server, and makes a number of compromises to allow
	 * that.  It is not compatible with being a PDC.  */

	NTSTATUS (*get_challenge)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, DATA_BLOB *challenge);

	/* Given the user supplied info, check if this backend want to handle the password checking */

	NTSTATUS (*want_check)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx,
			       const struct auth_usersupplied_info *user_info);

	/* Given the user supplied info, check a password */

	NTSTATUS (*check_password)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx,
				   const struct auth_usersupplied_info *user_info,
				   struct auth_serversupplied_info **server_info);
};

struct auth_method_context {
	struct auth_method_context *prev, *next;
	struct auth_context *auth_ctx;
	const struct auth_operations *ops;
	int depth;
	void *private_data;
};

struct auth_context {
	struct {
		/* Who set this up in the first place? */ 
		const char *set_by;

		bool may_be_modified;

		DATA_BLOB data; 
	} challenge;

	/* methods, in the order they should be called */
	struct auth_method_context *methods;

	/* the event context to use for calls that can block */
	struct event_context *event_ctx;

	/* the messaging context which can be used by backends */
	struct messaging_context *msg_ctx;

	/* loadparm context */
	struct loadparm_context *lp_ctx;
};

/* this structure is used by backends to determine the size of some critical types */
struct auth_critical_sizes {
	int interface_version;
	int sizeof_auth_operations;
	int sizeof_auth_methods;
	int sizeof_auth_context;
	int sizeof_auth_usersupplied_info;
	int sizeof_auth_serversupplied_info;
};

 NTSTATUS encrypt_user_info(TALLOC_CTX *mem_ctx, struct auth_context *auth_context, 
			   enum auth_password_state to_state,
			   const struct auth_usersupplied_info *user_info_in,
			   const struct auth_usersupplied_info **user_info_encrypted);

#include "auth/session.h"
#include "auth/system_session_proto.h"
#include "auth/auth_proto.h"

#endif /* _SMBAUTH_H_ */