net_rpc_samsync.c

samba-3.0.22.tar.gz 编译smb服务器的源码

		pdb_set_hours_len(account, delta->buf_logon_hrs.buf_len, PDB_CHANGED);
	}

	/* Logon Hours */
	if (delta->buf_logon_hrs.buffer) {
		pstring oldstr, newstr;
		pdb_sethexhours(oldstr, pdb_get_hours(account));
		pdb_sethexhours(newstr, delta->buf_logon_hrs.buffer);
		if (!strequal(oldstr, newstr))
			pdb_set_hours(account, (const uint8 *)delta->buf_logon_hrs.buffer, PDB_CHANGED);
	}

	if (pdb_get_bad_password_count(account) != delta->bad_pwd_count)
		pdb_set_bad_password_count(account, delta->bad_pwd_count, PDB_CHANGED);

	if (pdb_get_logon_count(account) != delta->logon_count)
		pdb_set_logon_count(account, delta->logon_count, PDB_CHANGED);

	if (!nt_time_is_zero(&delta->pwd_last_set_time)) {
		unix_time = nt_time_to_unix(&delta->pwd_last_set_time);
		stored_time = pdb_get_pass_last_set_time(account);
		if (stored_time != unix_time)
			pdb_set_pass_last_set_time(account, unix_time, PDB_CHANGED);
	} else {
		/* no last set time, make it now */
		pdb_set_pass_last_set_time(account, time(NULL), PDB_CHANGED);
	}

#if 0
/*	No kickoff time in the delta? */
	if (!nt_time_is_zero(&delta->kickoff_time)) {
		unix_time = nt_time_to_unix(&delta->kickoff_time);
		stored_time = pdb_get_kickoff_time(account);
		if (stored_time != unix_time)
			pdb_set_kickoff_time(account, unix_time, PDB_CHANGED);
	}
#endif

	/* Decode hashes from password hash 
	   Note that win2000 may send us all zeros for the hashes if it doesn't 
	   think this channel is secure enough - don't set the passwords at all
	   in that case
	*/
	if (memcmp(delta->pass.buf_lm_pwd, zero_buf, 16) != 0) {
		sam_pwd_hash(delta->user_rid, delta->pass.buf_lm_pwd, lm_passwd, 0);
		pdb_set_lanman_passwd(account, lm_passwd, PDB_CHANGED);
	}

	if (memcmp(delta->pass.buf_nt_pwd, zero_buf, 16) != 0) {
		sam_pwd_hash(delta->user_rid, delta->pass.buf_nt_pwd, nt_passwd, 0);
		pdb_set_nt_passwd(account, nt_passwd, PDB_CHANGED);
	}

	/* TODO: account expiry time */

	pdb_set_acct_ctrl(account, delta->acb_info, PDB_CHANGED);

	pdb_set_domain(account, lp_workgroup(), PDB_CHANGED);

	return NT_STATUS_OK;
}

static NTSTATUS fetch_account_info(uint32 rid, SAM_ACCOUNT_INFO *delta)
{
	NTSTATUS nt_ret;
	fstring account;
	pstring add_script;
	SAM_ACCOUNT *sam_account=NULL;
	GROUP_MAP map;
	struct group *grp;
	DOM_SID user_sid;
	DOM_SID group_sid;
	struct passwd *passwd;
	fstring sid_string;

	fstrcpy(account, unistr2_static(&delta->uni_acct_name));
	d_printf("Creating account: %s\n", account);

	if (!NT_STATUS_IS_OK(nt_ret = pdb_init_sam(&sam_account)))
		return nt_ret;

	if (!(passwd = Get_Pwnam(account))) {
		/* Create appropriate user */
		if (delta->acb_info & ACB_NORMAL) {
			pstrcpy(add_script, lp_adduser_script());
		} else if ( (delta->acb_info & ACB_WSTRUST) ||
			    (delta->acb_info & ACB_SVRTRUST) ||
			    (delta->acb_info & ACB_DOMTRUST) ) {
			pstrcpy(add_script, lp_addmachine_script());
		} else {
			DEBUG(1, ("Unknown user type: %s\n",
				  pdb_encode_acct_ctrl(delta->acb_info, NEW_PW_FORMAT_SPACE_PADDED_LEN)));
			nt_ret = NT_STATUS_UNSUCCESSFUL;
			goto done;
		}
		if (*add_script) {
			int add_ret;
			all_string_sub(add_script, "%u", account,
				       sizeof(account));
			add_ret = smbrun(add_script,NULL);
			DEBUG(add_ret ? 0 : 1,("fetch_account: Running the command `%s' "
				 "gave %d\n", add_script, add_ret));
		}
		
		/* try and find the possible unix account again */
		if ( !(passwd = Get_Pwnam(account)) ) {
			d_fprintf(stderr, "Could not create posix account info for '%s'\n", account);
			nt_ret = NT_STATUS_NO_SUCH_USER;
			goto done;
		}
	}
	
	sid_copy(&user_sid, get_global_sam_sid());
	sid_append_rid(&user_sid, delta->user_rid);

	DEBUG(3, ("Attempting to find SID %s for user %s in the passdb\n", sid_to_string(sid_string, &user_sid), account));
	if (!pdb_getsampwsid(sam_account, &user_sid)) {
		sam_account_from_delta(sam_account, delta);
		DEBUG(3, ("Attempting to add user SID %s for user %s in the passdb\n", 
			  sid_to_string(sid_string, &user_sid), pdb_get_username(sam_account)));
		if (!pdb_add_sam_account(sam_account)) {
			DEBUG(1, ("SAM Account for %s failed to be added to the passdb!\n",
				  account));
			return NT_STATUS_ACCESS_DENIED; 
		}
	} else {
		sam_account_from_delta(sam_account, delta);
		DEBUG(3, ("Attempting to update user SID %s for user %s in the passdb\n", 
			  sid_to_string(sid_string, &user_sid), pdb_get_username(sam_account)));
		if (!pdb_update_sam_account(sam_account)) {
			DEBUG(1, ("SAM Account for %s failed to be updated in the passdb!\n",
				  account));
			pdb_free_sam(&sam_account);
			return NT_STATUS_ACCESS_DENIED; 
		}
	}

	group_sid = *pdb_get_group_sid(sam_account);

	if (!pdb_getgrsid(&map, group_sid)) {
		DEBUG(0, ("Primary group of %s has no mapping!\n",
			  pdb_get_username(sam_account)));
	} else {
		if (map.gid != passwd->pw_gid) {
			if (!(grp = getgrgid(map.gid))) {
				DEBUG(0, ("Could not find unix group %lu for user %s (group SID=%s)\n", 
					  (unsigned long)map.gid, pdb_get_username(sam_account), sid_string_static(&group_sid)));
			} else {
				smb_set_primary_group(grp->gr_name, pdb_get_username(sam_account));
			}
		}
	}	

	if ( !passwd ) {
		DEBUG(1, ("No unix user for this account (%s), cannot adjust mappings\n", 
			pdb_get_username(sam_account)));
	}

 done:
	pdb_free_sam(&sam_account);
	return nt_ret;
}

static NTSTATUS fetch_group_info(uint32 rid, SAM_GROUP_INFO *delta)
{
	fstring name;
	fstring comment;
	struct group *grp = NULL;
	DOM_SID group_sid;
	fstring sid_string;
	GROUP_MAP map;
	BOOL insert = True;

	unistr2_to_ascii(name, &delta->uni_grp_name, sizeof(name)-1);
	unistr2_to_ascii(comment, &delta->uni_grp_desc, sizeof(comment)-1);

	/* add the group to the mapping table */
	sid_copy(&group_sid, get_global_sam_sid());
	sid_append_rid(&group_sid, rid);
	sid_to_string(sid_string, &group_sid);

	if (pdb_getgrsid(&map, group_sid)) {
		if ( map.gid != -1 )
			grp = getgrgid(map.gid);
		insert = False;
	}

	if (grp == NULL) {
		gid_t gid;

		/* No group found from mapping, find it from its name. */
		if ((grp = getgrnam(name)) == NULL) {
		
			/* No appropriate group found, create one */
			
			d_printf("Creating unix group: '%s'\n", name);
			
			if (smb_create_group(name, &gid) != 0)
				return NT_STATUS_ACCESS_DENIED;
				
			if ((grp = getgrnam(name)) == NULL)
				return NT_STATUS_ACCESS_DENIED;
		}
	}

	map.gid = grp->gr_gid;
	map.sid = group_sid;
	map.sid_name_use = SID_NAME_DOM_GRP;
	fstrcpy(map.nt_name, name);
	if (delta->hdr_grp_desc.buffer) {
		fstrcpy(map.comment, comment);
	} else {
		fstrcpy(map.comment, "");
	}

	if (insert)
		pdb_add_group_mapping_entry(&map);
	else
		pdb_update_group_mapping_entry(&map);

	return NT_STATUS_OK;
}

static NTSTATUS fetch_group_mem_info(uint32 rid, SAM_GROUP_MEM_INFO *delta)
{
	int i;
	TALLOC_CTX *t = NULL;
	char **nt_members = NULL;
	char **unix_members;
	DOM_SID group_sid;
	GROUP_MAP map;
	struct group *grp;

	if (delta->num_members == 0) {
		return NT_STATUS_OK;
	}

	sid_copy(&group_sid, get_global_sam_sid());
	sid_append_rid(&group_sid, rid);

	if (!get_domain_group_from_sid(group_sid, &map)) {
		DEBUG(0, ("Could not find global group %d\n", rid));
		return NT_STATUS_NO_SUCH_GROUP;
	}

	if (!(grp = getgrgid(map.gid))) {
		DEBUG(0, ("Could not find unix group %lu\n", (unsigned long)map.gid));
		return NT_STATUS_NO_SUCH_GROUP;
	}

	d_printf("Group members of %s: ", grp->gr_name);

	if (!(t = talloc_init("fetch_group_mem_info"))) {
		DEBUG(0, ("could not talloc_init\n"));
		return NT_STATUS_NO_MEMORY;
	}

	nt_members = TALLOC_ZERO_ARRAY(t, char *, delta->num_members);

	for (i=0; i<delta->num_members; i++) {
		NTSTATUS nt_status;
		SAM_ACCOUNT *member = NULL;
		DOM_SID member_sid;

		if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(t, &member))) {
			talloc_destroy(t);
			return nt_status;
		}

		sid_copy(&member_sid, get_global_sam_sid());
		sid_append_rid(&member_sid, delta->rids[i]);

		if (!pdb_getsampwsid(member, &member_sid)) {
			DEBUG(1, ("Found bogus group member: %d (member_sid=%s group=%s)\n",
				  delta->rids[i], sid_string_static(&member_sid), grp->gr_name));
			pdb_free_sam(&member);
			continue;
		}

		if (pdb_get_group_rid(member) == rid) {
			d_printf("%s(primary),", pdb_get_username(member));
			pdb_free_sam(&member);
			continue;
		}
		
		d_printf("%s,", pdb_get_username(member));
		nt_members[i] = talloc_strdup(t, pdb_get_username(member));
		pdb_free_sam(&member);
	}

	d_printf("\n");

	unix_members = grp->gr_mem;

	while (*unix_members) {
		BOOL is_nt_member = False;
		for (i=0; i<delta->num_members; i++) {
			if (nt_members[i] == NULL) {
				/* This was a primary group */
				continue;
			}

			if (strcmp(*unix_members, nt_members[i]) == 0) {
				is_nt_member = True;
				break;
			}
		}
		if (!is_nt_member) {
			/* We look at a unix group member that is not
			   an nt group member. So, remove it. NT is
			   boss here. */
			smb_delete_user_group(grp->gr_name, *unix_members);
		}
		unix_members += 1;
	}

	for (i=0; i<delta->num_members; i++) {
		BOOL is_unix_member = False;

		if (nt_members[i] == NULL) {
			/* This was the primary group */
			continue;
		}

		unix_members = grp->gr_mem;

		while (*unix_members) {
			if (strcmp(*unix_members, nt_members[i]) == 0) {
				is_unix_member = True;
				break;
			}
			unix_members += 1;
		}

		if (!is_unix_member) {
			/* We look at a nt group member that is not a
                           unix group member currently. So, add the nt
                           group member. */
			smb_add_user_group(grp->gr_name, nt_members[i]);
		}
	}
	
	talloc_destroy(t);
	return NT_STATUS_OK;
}

static NTSTATUS fetch_alias_info(uint32 rid, SAM_ALIAS_INFO *delta,
				 DOM_SID dom_sid)
{
	fstring name;
	fstring comment;
	struct group *grp = NULL;
	DOM_SID alias_sid;
	fstring sid_string;
	GROUP_MAP map;
	BOOL insert = True;

	unistr2_to_ascii(name, &delta->uni_als_name, sizeof(name)-1);
	unistr2_to_ascii(comment, &delta->uni_als_desc, sizeof(comment)-1);

	/* Find out whether the group is already mapped */
	sid_copy(&alias_sid, &dom_sid);
	sid_append_rid(&alias_sid, rid);
	sid_to_string(sid_string, &alias_sid);

	if (pdb_getgrsid(&map, alias_sid)) {
		grp = getgrgid(map.gid);
		insert = False;
	}

	if (grp == NULL) {
		gid_t gid;

		/* No group found from mapping, find it from its name. */
		if ((grp = getgrnam(name)) == NULL) {
			/* No appropriate group found, create one */
			d_printf("Creating unix group: '%s'\n", name);
			if (smb_create_group(name, &gid) != 0)
				return NT_STATUS_ACCESS_DENIED;
			if ((grp = getgrgid(gid)) == NULL)
				return NT_STATUS_ACCESS_DENIED;
		}
	}

	map.gid = grp->gr_gid;
	map.sid = alias_sid;

	if (sid_equal(&dom_sid, &global_sid_Builtin))
		map.sid_name_use = SID_NAME_WKN_GRP;
	else
		map.sid_name_use = SID_NAME_ALIAS;

	fstrcpy(map.nt_name, name);
	fstrcpy(map.comment, comment);

	if (insert)
		pdb_add_group_mapping_entry(&map);
	else
		pdb_update_group_mapping_entry(&map);

	return NT_STATUS_OK;
}

static NTSTATUS fetch_alias_mem(uint32 rid, SAM_ALIAS_MEM_INFO *delta, DOM_SID dom_sid)
{
#if 0 	/* 
	 * commented out right now after talking to Volker.  Can't
	 * do much with the membership but seemed a shame to waste
	 * somewhat working code.  Needs testing because the membership
	 * that shows up surprises me.  Also can't do much with groups
	 * in groups (e.g. Domain Admins being a member of Adminsitrators).
	 * --jerry
	 */
	
	int i;
	TALLOC_CTX *t = NULL;
	char **nt_members = NULL;
	char **unix_members;
	DOM_SID group_sid;
	GROUP_MAP map;
	struct group *grp;
	enum SID_NAME_USE sid_type;

	if (delta->num_members == 0) {
		return NT_STATUS_OK;
	}

	sid_copy(&group_sid, &dom_sid);
	sid_append_rid(&group_sid, rid);

	if (sid_equal(&dom_sid, &global_sid_Builtin)) {
		sid_type = SID_NAME_WKN_GRP;