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mirror of https://github.com/samba-team/samba.git synced 2025-01-20 14:03:59 +03:00
Jeremy Allison dc36d8768a Integration of Anders Blomdell <anders.blomdell@control.lth.se>'s
smbpasswd changes. Not exactly the same as his code - several
changes.
Jeremy.
(This used to be commit e96747a8e3b9ea5a79c4258e55d7e8f3bf0bf193)
1998-09-24 22:33:13 +00:00

698 lines
21 KiB
C

/*
* Unix SMB/Netbios implementation. Version 1.9. SMB parameters and setup
* Copyright (C) Andrew Tridgell 1992-1998 Modified by Jeremy Allison 1995.
* Copyright (C) Benny Holmgren 1998 <bigfoot@astrakan.hgs.se>
* Copyright (C) Luke Kenneth Casson Leighton 1996-1998.
*
* 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 2 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, write to the Free Software Foundation, Inc., 675
* Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef WITH_NISPLUS
#include "includes.h"
#include <rpcsvc/nis.h>
extern int DEBUGLEVEL;
static int gotalarm;
/***************************************************************
the fields for the NIS+ table, generated from mknissmbpwtbl.sh, are:
name=S,nogw=r
uid=S,nogw=r
user_rid=S,nogw=r
smb_grpid=,nw+r
group_rid=,nw+r
acb=,nw+r
lmpwd=C,nw=,g=r,o=rm
ntpwd=C,nw=,g=r,o=rm
logon_t=,nw+r
logoff_t=,nw+r
kick_t=,nw+r
pwdlset_t=,nw+r
pwdlchg_t=,nw+r
pwdmchg_t=,nw+r
full_name=,nw+r
home_dir=,nw+r
dir_drive=,nw+r
logon_script=,nw+r
profile_path=,nw+r
acct_desc=,nw+r
workstations=,nw+r
hours=,nw+r
****************************************************************/
#define NPF_NAME 0
#define NPF_UID 1
#define NPF_USER_RID 2
#define NPF_SMB_GRPID 3
#define NPF_GROUP_RID 4
#define NPF_ACB 5
#define NPF_LMPWD 6
#define NPF_NTPWD 7
#define NPF_LOGON_T 8
#define NPF_LOGOFF_T 9
#define NPF_KICK_T 10
#define NPF_PWDLSET_T 11
#define NPF_PWDLCHG_T 12
#define NPF_PWDMCHG_T 13
#define NPF_FULL_NAME 14
#define NPF_HOME_DIR 15
#define NPF_DIR_DRIVE 16
#define NPF_LOGON_SCRIPT 17
#define NPF_PROFILE_PATH 18
#define NPF_ACCT_DESC 19
#define NPF_WORKSTATIONS 20
#define NPF_HOURS 21
/***************************************************************
Signal function to tell us we timed out.
****************************************************************/
static void gotalarm_sig(void)
{
gotalarm = 1;
}
/***************************************************************
make_nisname_from_user_rid
****************************************************************/
static char *make_nisname_from_user_rid(uint32 rid, char *pfile)
{
static pstring nisname;
safe_strcpy(nisname, "[user_rid=", sizeof(nisname)-1);
slprintf(nisname, sizeof(nisname)-1, "%s%d", nisname, rid);
safe_strcat(nisname, "],", sizeof(nisname)-strlen(nisname)-1);
safe_strcat(nisname, pfile, sizeof(nisname)-strlen(nisname)-1);
return nisname;
}
/***************************************************************
make_nisname_from_uid
****************************************************************/
static char *make_nisname_from_uid(int uid, char *pfile)
{
static pstring nisname;
safe_strcpy(nisname, "[uid=", sizeof(nisname)-1);
slprintf(nisname, sizeof(nisname)-1, "%s%d", nisname, uid);
safe_strcat(nisname, "],", sizeof(nisname)-strlen(nisname)-1);
safe_strcat(nisname, pfile, sizeof(nisname)-strlen(nisname)-1);
return nisname;
}
/***************************************************************
make_nisname_from_name
****************************************************************/
static char *make_nisname_from_name(char *user_name, char *pfile)
{
static pstring nisname;
safe_strcpy(nisname, "[name=", sizeof(nisname)-1);
safe_strcat(nisname, user_name, sizeof(nisname) - strlen(nisname) - 1);
safe_strcat(nisname, "],", sizeof(nisname)-strlen(nisname)-1);
safe_strcat(nisname, pfile, sizeof(nisname)-strlen(nisname)-1);
return nisname;
}
/*************************************************************************
gets a NIS+ attribute
*************************************************************************/
static void get_single_attribute(nis_object *new_obj, int col,
char *val, int len)
{
int entry_len;
if (new_obj == NULL || val == NULL) return;
entry_len = ENTRY_LEN(new_obj, col);
if (len > entry_len)
{
DEBUG(10,("get_single_attribute: entry length truncated\n"));
len = entry_len;
}
safe_strcpy(val, len, ENTRY_VAL(new_obj, col));
}
/***************************************************************
calls nis_list, returns results.
****************************************************************/
static nis_result *nisp_get_nis_list(char *nis_name)
{
nis_result *result;
result = nis_list(nis_name, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP,NULL,NULL);
alarm(0);
CatchSignal(SIGALRM, SIGNAL_CAST SIG_DFL);
if (gotalarm)
{
DEBUG(0,("nisp_get_nis_list: NIS+ lookup time out\n"));
nis_freeresult(result);
return NULL;
}
return result;
}
struct nisp_enum_info
{
nis_result *result;
int enum_entry;
};
/***************************************************************
Start to enumerate the nisplus passwd list. Returns a void pointer
to ensure no modification outside this module.
do not call this function directly. use passdb.c instead.
****************************************************************/
static void *startnisppwent(BOOL update)
{
static struct nisp_enum_info res;
res.result = nisp_get_nis_list(lp_smb_passwd_file());
res.enum_entry = 0;
return res.result != NULL ? &res : NULL;
}
/***************************************************************
End enumeration of the nisplus passwd list.
****************************************************************/
static void endnisppwent(void *vp)
{
}
/*************************************************************************
Routine to return the next entry in the nisplus passwd list.
this function is a nice, messy combination of reading:
- the nisplus passwd file
- the unix password database
- nisp.conf options (not done at present).
do not call this function directly. use passdb.c instead.
*************************************************************************/
static struct sam_passwd *getnisp21pwent(void *vp)
{
return NULL;
}
/*************************************************************************
Return the current position in the nisplus passwd list as an SMB_BIG_UINT.
This must be treated as an opaque token.
do not call this function directly. use passdb.c instead.
*************************************************************************/
static SMB_BIG_UINT getnisppwpos(void *vp)
{
return (SMB_BIG_UINT)0;
}
/*************************************************************************
Set the current position in the nisplus passwd list from SMB_BIG_UINT.
This must be treated as an opaque token.
do not call this function directly. use passdb.c instead.
*************************************************************************/
static BOOL setnisppwpos(void *vp, SMB_BIG_UINT tok)
{
return False;
}
/*************************************************************************
sets a NIS+ attribute
*************************************************************************/
static void set_single_attribute(nis_object *new_obj, int col,
char *val, int len, int flags)
{
if (new_obj == NULL) return;
ENTRY_VAL(new_obj, col) = val;
ENTRY_LEN(new_obj, col) = len;
if (flags != 0)
{
new_obj->EN_data.en_cols.en_cols_val[col].ec_flags = flags;
}
}
/************************************************************************
Routine to add an entry to the nisplus passwd file.
do not call this function directly. use passdb.c instead.
*************************************************************************/
static BOOL add_nisp21pwd_entry(struct sam_passwd *newpwd)
{
char *pfile;
char *nisname;
nis_result *nis_user;
nis_result *result = NULL,
*tblresult = NULL,
*addresult = NULL;
nis_object new_obj, *obj;
fstring uid;
fstring user_rid;
fstring smb_grpid;
fstring group_rid;
fstring acb;
fstring smb_passwd;
fstring smb_nt_passwd;
fstring logon_t;
fstring logoff_t;
fstring kickoff_t;
fstring pwdlset_t;
fstring pwdlchg_t;
fstring pwdmchg_t;
bzero(logon_t , sizeof(logon_t ));
bzero(logoff_t , sizeof(logoff_t ));
bzero(kickoff_t, sizeof(kickoff_t));
bzero(pwdlset_t, sizeof(pwdlset_t));
bzero(pwdlchg_t, sizeof(pwdlchg_t));
bzero(pwdmchg_t, sizeof(pwdmchg_t));
pfile = lp_smb_passwd_file();
nisname = make_nisname_from_name(newpwd->smb_name, pfile);
result = nisp_get_nis_list(nisname);
if (result->status != NIS_SUCCESS && result->status != NIS_NOTFOUND)
{
DEBUG(3, ( "add_nisppwd_entry: nis_list failure: %s: %s\n",
nisname, nis_sperrno(result->status)));
nis_freeresult(nis_user);
nis_freeresult(result);
return False;
}
if (result->status == NIS_SUCCESS && NIS_RES_NUMOBJ(result) > 0)
{
DEBUG(3, ("add_nisppwd_entry: User already exists in NIS+ password db: %s\n",
pfile));
nis_freeresult(result);
nis_freeresult(nis_user);
return False;
}
#if 0
/* User not found. */
if (!add_user)
{
DEBUG(3, ("add_nisppwd_entry: User not found in NIS+ password db: %s\n",
pfile));
nis_freeresult(result);
nis_freeresult(nis_user);
return False;
}
#endif
tblresult = nis_lookup(pfile, FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP );
if (tblresult->status != NIS_SUCCESS)
{
nis_freeresult(result);
nis_freeresult(nis_user);
nis_freeresult(tblresult);
DEBUG(3, ( "add_nisppwd_entry: nis_lookup failure: %s\n",
nis_sperrno(tblresult->status)));
return False;
}
new_obj.zo_name = NIS_RES_OBJECT(tblresult)->zo_name;
new_obj.zo_domain = NIS_RES_OBJECT(tblresult)->zo_domain;
new_obj.zo_owner = NIS_RES_OBJECT(tblresult)->zo_owner;
new_obj.zo_group = NIS_RES_OBJECT(tblresult)->zo_group;
new_obj.zo_access = NIS_RES_OBJECT(tblresult)->zo_access;
new_obj.zo_ttl = NIS_RES_OBJECT(tblresult)->zo_ttl;
new_obj.zo_data.zo_type = ENTRY_OBJ;
new_obj.zo_data.objdata_u.en_data.en_type = NIS_RES_OBJECT(tblresult)->zo_data.objdata_u.ta_data.ta_type;
new_obj.zo_data.objdata_u.en_data.en_cols.en_cols_len = NIS_RES_OBJECT(tblresult)->zo_data.objdata_u.ta_data.ta_maxcol;
new_obj.zo_data.objdata_u.en_data.en_cols.en_cols_val = calloc(new_obj.zo_data.objdata_u.en_data.en_cols.en_cols_len, sizeof(entry_col));
pdb_sethexpwd(smb_passwd , newpwd->smb_passwd , newpwd->acct_ctrl);
pdb_sethexpwd(smb_nt_passwd, newpwd->smb_nt_passwd, newpwd->acct_ctrl);
pdb_set_logon_time (logon_t , sizeof(logon_t ), newpwd->logon_time );
pdb_set_logoff_time (logoff_t , sizeof(logoff_t ), newpwd->logoff_time );
pdb_set_kickoff_time (kickoff_t, sizeof(kickoff_t), newpwd->kickoff_time );
pdb_set_last_set_time (pwdlset_t, sizeof(pwdlset_t), newpwd->pass_last_set_time );
pdb_set_can_change_time (pwdlchg_t, sizeof(pwdlchg_t), newpwd->pass_can_change_time );
pdb_set_must_change_time(pwdmchg_t, sizeof(pwdmchg_t), newpwd->pass_must_change_time);
slprintf(uid, sizeof(uid), "%u", newpwd->smb_userid);
slprintf(user_rid, sizeof(user_rid), "0x%x", newpwd->user_rid);
slprintf(smb_grpid, sizeof(smb_grpid), "%u", newpwd->smb_grpid);
slprintf(group_rid, sizeof(group_rid), "0x%x", newpwd->group_rid);
safe_strcpy(acb, pdb_encode_acct_ctrl(newpwd->acct_ctrl, NEW_PW_FORMAT_SPACE_PADDED_LEN), sizeof(acb));
set_single_attribute(&new_obj, NPF_NAME , newpwd->smb_name , strlen(newpwd->smb_name) , 0);
set_single_attribute(&new_obj, NPF_UID , uid , strlen(uid) , 0);
set_single_attribute(&new_obj, NPF_USER_RID , user_rid , strlen(user_rid) , 0);
set_single_attribute(&new_obj, NPF_SMB_GRPID , smb_grpid , strlen(smb_grpid) , 0);
set_single_attribute(&new_obj, NPF_GROUP_RID , group_rid , strlen(group_rid) , 0);
set_single_attribute(&new_obj, NPF_ACB , acb , strlen(acb) , 0);
set_single_attribute(&new_obj, NPF_LMPWD , smb_passwd , strlen(smb_passwd) , EN_CRYPT);
set_single_attribute(&new_obj, NPF_NTPWD , smb_nt_passwd , strlen(smb_nt_passwd) , EN_CRYPT);
set_single_attribute(&new_obj, NPF_LOGON_T , logon_t , strlen(logon_t) , 0);
set_single_attribute(&new_obj, NPF_LOGOFF_T , logoff_t , strlen(logoff_t) , 0);
set_single_attribute(&new_obj, NPF_KICK_T , kickoff_t , strlen(kickoff_t) , 0);
set_single_attribute(&new_obj, NPF_PWDLSET_T , pwdlset_t , strlen(pwdlset_t) , 0);
set_single_attribute(&new_obj, NPF_PWDLCHG_T , pwdlchg_t , strlen(pwdlchg_t) , 0);
set_single_attribute(&new_obj, NPF_PWDMCHG_T , pwdmchg_t , strlen(pwdmchg_t) , 0);
set_single_attribute(&new_obj, NPF_FULL_NAME , newpwd->full_name , strlen(newpwd->full_name) , 0);
set_single_attribute(&new_obj, NPF_HOME_DIR , newpwd->home_dir , strlen(newpwd->home_dir) , 0);
set_single_attribute(&new_obj, NPF_DIR_DRIVE , newpwd->dir_drive , strlen(newpwd->dir_drive) , 0);
set_single_attribute(&new_obj, NPF_LOGON_SCRIPT , newpwd->logon_script , strlen(newpwd->logon_script) , 0);
set_single_attribute(&new_obj, NPF_PROFILE_PATH , newpwd->profile_path , strlen(newpwd->profile_path) , 0);
set_single_attribute(&new_obj, NPF_ACCT_DESC , newpwd->acct_desc , strlen(newpwd->acct_desc) , 0);
set_single_attribute(&new_obj, NPF_WORKSTATIONS , newpwd->workstations , strlen(newpwd->workstations) , 0);
set_single_attribute(&new_obj, NPF_HOURS , newpwd->hours , newpwd->hours_len , 0);
obj = &new_obj;
addresult = nis_add_entry(pfile, obj, ADD_OVERWRITE | FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP);
nis_freeresult(nis_user);
if (tblresult)
{
nis_freeresult(tblresult);
}
if (addresult->status != NIS_SUCCESS)
{
DEBUG(3, ( "add_nisppwd_entry: NIS+ table update failed: %s\n",
nisname, nis_sperrno(addresult->status)));
nis_freeresult(addresult);
nis_freeresult(result);
return False;
}
nis_freeresult(addresult);
nis_freeresult(result);
return True;
}
/************************************************************************
Routine to search the nisplus passwd file for an entry matching the username.
and then modify its password entry. We can't use the startnisppwent()/
getnisppwent()/endnisppwent() interfaces here as we depend on looking
in the actual file to decide how much room we have to write data.
override = False, normal
override = True, override XXXXXXXX'd out password or NO PASS
do not call this function directly. use passdb.c instead.
************************************************************************/
static BOOL mod_nisp21pwd_entry(struct sam_passwd* pwd, BOOL override)
{
return False;
}
/************************************************************************
makes a struct sam_passwd from a NIS+ result.
************************************************************************/
static BOOL make_sam_from_nisp(struct sam_passwd *pw_buf, nis_result *result)
{
int uidval;
static pstring user_name;
static unsigned char smbpwd[16];
static unsigned char smbntpwd[16];
nis_object *obj;
uchar *p;
if (pw_buf == NULL || result == NULL) return False;
pdb_init_sam(pw_buf);
if (result->status != NIS_SUCCESS)
{
DEBUG(0, ("make_smb_from_nisp: NIS+ lookup failure: %s\n",
nis_sperrno(result->status)));
return False;
}
/* User not found. */
if (NIS_RES_NUMOBJ(result) <= 0)
{
DEBUG(10, ("make_smb_from_nisp: user not found in NIS+\n"));
return False;
}
if (NIS_RES_NUMOBJ(result) > 1)
{
DEBUG(10, ("make_smb_from_nisp: WARNING: Multiple entries for user in NIS+ table!\n"));
}
/* Grab the first hit. */
obj = &NIS_RES_OBJECT(result)[0];
/* Check the lanman password column. */
p = (uchar *)ENTRY_VAL(obj, NPF_LMPWD);
if (strlen((char *)p) != 32 || !pdb_gethexpwd((char *)p, (char *)smbpwd))
{
DEBUG(0, ("make_smb_from_nisp: malformed LM pwd entry.\n"));
return False;
}
/* Check the NT password column. */
p = (uchar *)ENTRY_VAL(obj, NPF_NTPWD);
if (strlen((char *)p) != 32 || !pdb_gethexpwd((char *)p, (char *)smbntpwd))
{
DEBUG(0, ("make_smb_from_nisp: malformed NT pwd entry\n"));
return False;
}
strncpy(user_name, ENTRY_VAL(obj, NPF_NAME), sizeof(user_name));
uidval = atoi(ENTRY_VAL(obj, NPF_UID));
pw_buf->smb_name = user_name;
pw_buf->smb_userid = uidval;
pw_buf->smb_passwd = smbpwd;
pw_buf->smb_nt_passwd = smbntpwd;
return True;
}
/*************************************************************************
Routine to search the nisplus passwd file for an entry matching the username
*************************************************************************/
static struct sam_passwd *getnisp21pwnam(char *name)
{
/* Static buffers we will return. */
static struct sam_passwd pw_buf;
nis_result *result;
pstring nisname;
BOOL ret;
if (!*lp_smb_passwd_file())
{
DEBUG(0, ("No SMB password file set\n"));
return NULL;
}
DEBUG(10, ("getnisppwnam: search by name: %s\n", name));
DEBUG(10, ("getnisppwnam: using NIS+ table %s\n", lp_smb_passwd_file()));
slprintf(nisname, sizeof(nisname)-1, "[name=%s],%s", name, lp_smb_passwd_file());
/* Search the table. */
gotalarm = 0;
CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig);
alarm(5);
result = nis_list(nisname, FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP, NULL, NULL);
alarm(0);
CatchSignal(SIGALRM, SIGNAL_CAST SIG_DFL);
if (gotalarm)
{
DEBUG(0,("getnisppwnam: NIS+ lookup time out\n"));
nis_freeresult(result);
return NULL;
}
ret = make_sam_from_nisp(&pw_buf, result);
nis_freeresult(result);
return ret ? &pw_buf : NULL;
}
/*************************************************************************
Routine to search the nisplus passwd file for an entry matching the username
*************************************************************************/
static struct sam_passwd *getnisp21pwrid(uint32 rid)
{
/* Static buffers we will return. */
static struct sam_passwd pw_buf;
nis_result *result;
char *nisname;
BOOL ret;
if (!*lp_smb_passwd_file())
{
DEBUG(0, ("No SMB password file set\n"));
return NULL;
}
DEBUG(10, ("getnisp21pwrid: search by rid: %x\n", rid));
DEBUG(10, ("getnisp21pwrid: using NIS+ table %s\n", lp_smb_passwd_file()));
nisname = make_nisname_from_user_rid(rid, lp_smb_passwd_file());
/* Search the table. */
gotalarm = 0;
CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig);
alarm(5);
result = nis_list(nisname, FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP, NULL, NULL);
alarm(0);
CatchSignal(SIGALRM, SIGNAL_CAST SIG_DFL);
if (gotalarm)
{
DEBUG(0,("getnisp21pwrid: NIS+ lookup time out\n"));
nis_freeresult(result);
return NULL;
}
ret = make_sam_from_nisp(&pw_buf, result);
nis_freeresult(result);
return ret ? &pw_buf : NULL;
}
/*
* Derived functions for NIS+.
*/
static struct smb_passwd *getnisppwent(void *vp)
{
return pdb_sam_to_smb(getnisp21pwent(vp));
}
static BOOL add_nisppwd_entry(struct smb_passwd *newpwd)
{
return add_nisp21pwd_entry(pdb_smb_to_sam(newpwd));
}
static BOOL mod_nisppwd_entry(struct smb_passwd* pwd, BOOL override)
{
return mod_nisp21pwd_entry(pdb_smb_to_sam(pwd), override);
}
static struct smb_passwd *getnisppwnam(char *name)
{
return pdb_sam_to_smb(getnisp21pwnam(name));
}
static struct sam_passwd *getnisp21pwuid(uid_t smb_userid)
{
return getnisp21pwrid(pdb_uid_to_user_rid(smb_userid));
}
static struct smb_passwd *getnisppwuid(uid_t smb_userid)
{
return pdb_sam_to_smb(getnisp21pwuid(smb_userid));
}
static struct sam_disp_info *getnispdispnam(char *name)
{
return pdb_sam_to_dispinfo(getnisp21pwnam(name));
}
static struct sam_disp_info *getnispdisprid(uint32 rid)
{
return pdb_sam_to_dispinfo(getnisp21pwrid(rid));
}
static struct sam_disp_info *getnispdispent(void *vp)
{
return pdb_sam_to_dispinfo(getnisp21pwent(vp));
}
static struct passdb_ops nispasswd_ops = {
startnisppwent,
endnisppwent,
getnisppwpos,
setnisppwpos,
getnisppwnam,
getnisppwuid,
getnisppwent,
add_nisppwd_entry,
mod_nisppwd_entry,
getnisp21pwent,
getnisp21pwnam,
getnisp21pwuid,
getnisp21pwrid,
add_nisp21pwd_entry,
mod_nisp21pwd_entry,
getnispdispnam,
getnispdisprid,
getnispdispent
};
struct passdb_ops *nisplus_initialize_password_db(void)
{
return &nispasswd_ops;
}
#else
void nisplus_dummy_function(void) { } /* stop some compilers complaining */
#endif /* WITH_NISPLUS */
/* useful code i can't bring myself to delete */
#if 0
static void useful_code(void) {
/* checks user in unix password database. don't want to do that, here. */
nisname = make_nisname_from_name(newpwd->smb_name, "passwd.org_dir");
nis_user = nis_list(nisname, FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP, NULL, NULL);
if (nis_user->status != NIS_SUCCESS || NIS_RES_NUMOBJ(nis_user) <= 0)
{
DEBUG(3, ("add_nisppwd_entry: Unable to get NIS+ passwd entry for user: %s.\n",
nis_sperrno(nis_user->status)));
return False;
}
user_obj = NIS_RES_OBJECT(nis_user);
make_nisname_from_name(ENTRY_VAL(user_obj,0), pfile);
}
#endif