2 Unix SMB/CIFS implementation.
3 Password and authentication handling
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 2007.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "system/passwd.h"
23 #include "smbd/smbd.h"
24 #include "smbd/globals.h"
25 #include "../librpc/gen_ndr/netlogon.h"
27 #include "../libcli/security/security.h"
29 enum server_allocated_state
{ SERVER_ALLOCATED_REQUIRED_YES
,
30 SERVER_ALLOCATED_REQUIRED_NO
,
31 SERVER_ALLOCATED_REQUIRED_ANY
};
33 static struct user_struct
*get_valid_user_struct_internal(
34 struct smbd_server_connection
*sconn
,
36 enum server_allocated_state server_allocated
)
38 struct user_struct
*usp
;
41 if (vuid
== UID_FIELD_INVALID
)
45 for (;usp
;usp
=usp
->next
,count
++) {
46 if (vuid
== usp
->vuid
) {
47 switch (server_allocated
) {
48 case SERVER_ALLOCATED_REQUIRED_YES
:
49 if (usp
->session_info
== NULL
) {
53 case SERVER_ALLOCATED_REQUIRED_NO
:
54 if (usp
->session_info
!= NULL
) {
57 case SERVER_ALLOCATED_REQUIRED_ANY
:
61 DLIST_PROMOTE(sconn
->users
, usp
);
70 /****************************************************************************
71 Check if a uid has been validated, and return an pointer to the user_struct
72 if it has. NULL if not. vuid is biased by an offset. This allows us to
73 tell random client vuid's (normally zero) from valid vuids.
74 ****************************************************************************/
76 struct user_struct
*get_valid_user_struct(struct smbd_server_connection
*sconn
,
79 return get_valid_user_struct_internal(sconn
, vuid
,
80 SERVER_ALLOCATED_REQUIRED_YES
);
83 /****************************************************************************
85 ****************************************************************************/
87 void invalidate_vuid(struct smbd_server_connection
*sconn
, uint64_t vuid
)
89 struct user_struct
*vuser
= NULL
;
91 vuser
= get_valid_user_struct_internal(sconn
, vuid
,
92 SERVER_ALLOCATED_REQUIRED_ANY
);
97 session_yield(vuser
->session
);
99 DLIST_REMOVE(sconn
->users
, vuser
);
100 SMB_ASSERT(sconn
->num_users
> 0);
103 /* clear the vuid from the 'cache' on each connection, and
104 from the vuid 'owner' of connections */
105 conn_clear_vuid_caches(sconn
, vuid
);
110 int register_homes_share(const char *username
)
115 result
= lp_servicenumber(username
);
117 DEBUG(3, ("Using static (or previously created) service for "
118 "user '%s'; path = '%s'\n", username
,
119 lp_path(talloc_tos(), result
)));
123 pwd
= Get_Pwnam_alloc(talloc_tos(), username
);
125 if ((pwd
== NULL
) || (pwd
->pw_dir
[0] == '\0')) {
126 DEBUG(3, ("No home directory defined for user '%s'\n",
132 DEBUG(3, ("Adding homes service for user '%s' using home directory: "
133 "'%s'\n", username
, pwd
->pw_dir
));
135 result
= add_home_service(username
, username
, pwd
->pw_dir
);