passdb.c

samba-3.0.22.tar.gz 编译smb服务器的源码

	else {
		pdb_set_homedir(sampass, 
			talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
			PDB_DEFAULT);
	}

	if (dir_drive) 	
		pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
	else
		pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );

	if (logon_script) {
		fstrcpy( tmpstring, logon_script );
		if (expand_explicit) {
			standard_sub_basic( username, tmpstring,
					    sizeof(tmpstring) );
		}
		pdb_set_logon_script(sampass, tmpstring, PDB_SET);
	}
	else {
		pdb_set_logon_script(sampass, 
			talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
			PDB_DEFAULT);
	}
	
	if (profile_path) {	
		fstrcpy( tmpstring, profile_path );
		if (expand_explicit) {
			standard_sub_basic( username, tmpstring,
					    sizeof(tmpstring) );
		}
		pdb_set_profile_path(sampass, tmpstring, PDB_SET);
	} 
	else {
		pdb_set_profile_path(sampass, 
			talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
			PDB_DEFAULT);
	}

	pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
	pdb_set_workstations(sampass, workstations, PDB_SET);
	pdb_set_munged_dial(sampass, munged_dial, PDB_SET);

	if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
		if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
			ret = False;
			goto done;
		}
	}

	if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
		if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
			ret = False;
			goto done;
		}
	}

	/* Change from V1 is addition of password history field. */
	pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
	if (pwHistLen) {
		uint8 *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
		if (!pw_hist) {
			ret = False;
			goto done;
		}
		memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
		if (nt_pw_hist_ptr && nt_pw_hist_len) {
			int i;
			SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
			nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
			for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
				memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
					&nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
					PW_HISTORY_ENTRY_LEN);
			}
		}
		if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
			SAFE_FREE(pw_hist);
			ret = False;
			goto done;
		}
		SAFE_FREE(pw_hist);
	} else {
		pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
	}

	pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
	pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
	pdb_set_hours_len(sampass, hours_len, PDB_SET);
	pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
	pdb_set_logon_count(sampass, logon_count, PDB_SET);
	pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
	pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
	pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
	pdb_set_hours(sampass, hours, PDB_SET);

done:

	SAFE_FREE(username);
	SAFE_FREE(domain);
	SAFE_FREE(nt_username);
	SAFE_FREE(fullname);
	SAFE_FREE(homedir);
	SAFE_FREE(dir_drive);
	SAFE_FREE(logon_script);
	SAFE_FREE(profile_path);
	SAFE_FREE(acct_desc);
	SAFE_FREE(workstations);
	SAFE_FREE(munged_dial);
	SAFE_FREE(unknown_str);
	SAFE_FREE(lm_pw_ptr);
	SAFE_FREE(nt_pw_ptr);
	SAFE_FREE(nt_pw_hist_ptr);
	SAFE_FREE(hours);

	return ret;
}

uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
{
	size_t len, buflen;

	/* times are stored as 32bit integer
	   take care on system with 64bit wide time_t
	   --SSS */
	uint32	logon_time,
		logoff_time,
		kickoff_time,
		bad_password_time,
		pass_last_set_time,
		pass_can_change_time,
		pass_must_change_time;

	uint32  user_rid, group_rid;

	const char *username;
	const char *domain;
	const char *nt_username;
	const char *dir_drive;
	const char *unknown_str;
	const char *munged_dial;
	const char *fullname;
	const char *homedir;
	const char *logon_script;
	const char *profile_path;
	const char *acct_desc;
	const char *workstations;
	uint32	username_len, domain_len, nt_username_len,
		dir_drive_len, unknown_str_len, munged_dial_len,
		fullname_len, homedir_len, logon_script_len,
		profile_path_len, acct_desc_len, workstations_len;

	const uint8 *lm_pw;
	const uint8 *nt_pw;
	const uint8 *nt_pw_hist;
	uint32	lm_pw_len = 16;
	uint32	nt_pw_len = 16;
	uint32  nt_pw_hist_len;
	uint32 pwHistLen = 0;

	/* do we have a valid SAM_ACCOUNT pointer? */
	if (sampass == NULL) {
		DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
		return -1;
	}
	
	*buf = NULL;
	buflen = 0;

	logon_time = (uint32)pdb_get_logon_time(sampass);
	logoff_time = (uint32)pdb_get_logoff_time(sampass);
	kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
	bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
	pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
	pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
	pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);

	user_rid = pdb_get_user_rid(sampass);
	group_rid = pdb_get_group_rid(sampass);

	username = pdb_get_username(sampass);
	if (username) {
		username_len = strlen(username) +1;
	} else {
		username_len = 0;
	}

	domain = pdb_get_domain(sampass);
	if (domain) {
		domain_len = strlen(domain) +1;
	} else {
		domain_len = 0;
	}

	nt_username = pdb_get_nt_username(sampass);
	if (nt_username) {
		nt_username_len = strlen(nt_username) +1;
	} else {
		nt_username_len = 0;
	}

	fullname = pdb_get_fullname(sampass);
	if (fullname) {
		fullname_len = strlen(fullname) +1;
	} else {
		fullname_len = 0;
	}

	/*
	 * Only updates fields which have been set (not defaults from smb.conf)
	 */

	if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
		dir_drive = pdb_get_dir_drive(sampass);
	} else {
		dir_drive = NULL;
	}
	if (dir_drive) {
		dir_drive_len = strlen(dir_drive) +1;
	} else {
		dir_drive_len = 0;
	}

	if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
		homedir = pdb_get_homedir(sampass);
	} else {
		homedir = NULL;
	}
	if (homedir) {
		homedir_len = strlen(homedir) +1;
	} else {
		homedir_len = 0;
	}

	if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
		logon_script = pdb_get_logon_script(sampass);
	} else {
		logon_script = NULL;
	}
	if (logon_script) {
		logon_script_len = strlen(logon_script) +1;
	} else {
		logon_script_len = 0;
	}

	if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
		profile_path = pdb_get_profile_path(sampass);
	} else {
		profile_path = NULL;
	}
	if (profile_path) {
		profile_path_len = strlen(profile_path) +1;
	} else {
		profile_path_len = 0;
	}
	
	lm_pw = pdb_get_lanman_passwd(sampass);
	if (!lm_pw) {
		lm_pw_len = 0;
	}
	
	nt_pw = pdb_get_nt_passwd(sampass);
	if (!nt_pw) {
		nt_pw_len = 0;
	}

	pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
	nt_pw_hist =  pdb_get_pw_history(sampass, &nt_pw_hist_len);
	if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
		nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
	} else {
		nt_pw_hist_len = 0;
	}

	acct_desc = pdb_get_acct_desc(sampass);
	if (acct_desc) {
		acct_desc_len = strlen(acct_desc) +1;
	} else {
		acct_desc_len = 0;
	}

	workstations = pdb_get_workstations(sampass);
	if (workstations) {
		workstations_len = strlen(workstations) +1;
	} else {
		workstations_len = 0;
	}

	unknown_str = NULL;
	unknown_str_len = 0;

	munged_dial = pdb_get_munged_dial(sampass);
	if (munged_dial) {
		munged_dial_len = strlen(munged_dial) +1;
	} else {
		munged_dial_len = 0;	
	}

/* TDB_FORMAT_STRING_V2       "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */

	/* one time to get the size needed */
	len = tdb_pack(NULL, 0,  TDB_FORMAT_STRING_V2,
		logon_time,				/* d */
		logoff_time,				/* d */
		kickoff_time,				/* d */
		bad_password_time,			/* d */
		pass_last_set_time,			/* d */
		pass_can_change_time,			/* d */
		pass_must_change_time,			/* d */
		username_len, username,			/* B */
		domain_len, domain,			/* B */
		nt_username_len, nt_username,		/* B */
		fullname_len, fullname,			/* B */
		homedir_len, homedir,			/* B */
		dir_drive_len, dir_drive,		/* B */
		logon_script_len, logon_script,		/* B */
		profile_path_len, profile_path,		/* B */
		acct_desc_len, acct_desc,		/* B */
		workstations_len, workstations,		/* B */
		unknown_str_len, unknown_str,		/* B */
		munged_dial_len, munged_dial,		/* B */
		user_rid,				/* d */
		group_rid,				/* d */
		lm_pw_len, lm_pw,			/* B */
		nt_pw_len, nt_pw,			/* B */
		nt_pw_hist_len, nt_pw_hist,		/* B */
		pdb_get_acct_ctrl(sampass),		/* w */
		pdb_get_logon_divs(sampass),		/* w */
		pdb_get_hours_len(sampass),		/* d */
		MAX_HOURS_LEN, pdb_get_hours(sampass),	/* B */
		pdb_get_bad_password_count(sampass),	/* w */
		pdb_get_logon_count(sampass),		/* w */
		pdb_get_unknown_6(sampass));		/* d */

	if (size_only) {
		return buflen;
	}

	/* malloc the space needed */
	if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
		DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
		return (-1);
	}
	
	/* now for the real call to tdb_pack() */
	buflen = tdb_pack((char *)*buf, len,  TDB_FORMAT_STRING_V2,
		logon_time,				/* d */
		logoff_time,				/* d */
		kickoff_time,				/* d */
		bad_password_time,			/* d */
		pass_last_set_time,			/* d */
		pass_can_change_time,			/* d */
		pass_must_change_time,			/* d */
		username_len, username,			/* B */
		domain_len, domain,			/* B */
		nt_username_len, nt_username,		/* B */
		fullname_len, fullname,			/* B */
		homedir_len, homedir,			/* B */
		dir_drive_len, dir_drive,		/* B */
		logon_script_len, logon_script,		/* B */
		profile_path_len, profile_path,		/* B */
		acct_desc_len, acct_desc,		/* B */
		workstations_len, workstations,		/* B */
		unknown_str_len, unknown_str,		/* B */
		munged_dial_len, munged_dial,		/* B */
		user_rid,				/* d */
		group_rid,				/* d */
		lm_pw_len, lm_pw,			/* B */
		nt_pw_len, nt_pw,			/* B */
		nt_pw_hist_len, nt_pw_hist,		/* B */
		pdb_get_acct_ctrl(sampass),		/* w */
		pdb_get_logon_divs(sampass),		/* w */
		pdb_get_hours_len(sampass),		/* d */
		MAX_HOURS_LEN, pdb_get_hours(sampass),	/* B */
		pdb_get_bad_password_count(sampass),	/* w */
		pdb_get_logon_count(sampass),		/* w */
		pdb_get_unknown_6(sampass));		/* d */
	
	/* check to make sure we got it correct */
	if (buflen != len) {
		DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n", 
			  (unsigned long)buflen, (unsigned long)len));  
		/* error */
		SAFE_FREE (*buf);
		return (-1);
	}

	return (buflen);
}

BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
{
	BOOL result;
	uint8 *buf;
	int len;

	if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
		return False;

	len = init_buffer_from_sam_v2(&buf, src, False);

	if (len == -1)
		return False;

	result = init_sam_from_buffer_v2(*dst, buf, len);
	(*dst)->methods = src->methods;

	free(buf);

	return result;
}

/**********************************************************************
**********************************************************************/

static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
{
	uid_t u_low, u_high;
	gid_t g_low, g_high;

	if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
		return False;
	}
	
	*low  = (u_low < g_low)   ? u_low  : g_low;
	*high = (u_high < g_high) ? u_high : g_high;
	
	return True;
}

/******************************************************************
 Get the the non-algorithmic RID range if idmap range are defined
******************************************************************/

BOOL get_free_rid_range(uint32 *low, uint32 *high)
{
	uint32 id_low, id_high;

	if (!lp_enable_rid_algorithm()) {
		*low = BASE_RID;
		*high = (uint32)-1;
	}

	if (!get_free_ugid_range(&id_low, &id_high)) {
		return False;
	}

	*low = algorithmic_pdb_uid_to_user_rid(id_low);
	if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
		*high = (uint32)-1;
	} else {
		*high = algorithmic_pdb_uid_to_user_rid(id_high);