COMPILATION LISTING OF SEGMENT rcp_promote_ Compiled by: Multics PL/I Compiler, Release 32f, of October 9, 1989 Compiled at: Bull HN, Phoenix AZ, System-M Compiled on: 11/11/89 0943.9 mst Sat Options: optimize map 1 /****^ *********************************************************** 2* * * 3* * Copyright, (C) Honeywell Bull Inc., 1987 * 4* * * 5* * Copyright, (C) Honeywell Information Systems Inc., 1982 * 6* * * 7* * Copyright (c) 1972 by Massachusetts Institute of * 8* * Technology and Honeywell Information Systems, Inc. * 9* * * 10* *********************************************************** */ 11 12 13 rcp_promote_: procedure (arg_rcp_id, arg_new_level, arg_ecode); 14 15 /* This program implements the rcp_$promote entry. 16** Created on 11/14/74 by Bill Silver. 17** 18** This procedure is called to change (promote or demote) the caller's 19** validation level for the specified RCS entry. This validation 20** level defines the highest ring from which calls can be made to RCP 21** (and also IOI) that involve this RCS entry. If there is another 22** RCS entry associated with this one then it will also be promoted. 23** If an attachment kind of RCS entry is found then IOI will be called 24** to promote the associated device if the attachment has completed. 25**/ 26 27 dcl arg_ecode fixed bin(35); /* (O) error_table_ code. */ 28 dcl arg_new_level fixed bin; /* (I) New validation level. */ 29 dcl arg_rcp_id bit(36) aligned; /* (I) RCP ID. */ 30 31 dcl caller_level fixed bin; /* Caller's validation level. */ 32 dcl ecode fixed bin(35); /* error_table_ code. */ 33 dcl new_level fixed bin; /* New validation level. */ 34 dcl rcp_id bit(36) aligned; /* RCP ID. */ 35 dcl rcse_off bit(18); /* Offset of RCS entry. */ 36 37 dcl cleanup condition; /* Used to set up cleanup handler. */ 38 39 dcl ( ptr ) builtin; 40 41 dcl admin_gate_$ioi_promote entry (fixed bin, fixed bin, fixed bin(35)); 42 dcl cu_$level_get entry (fixed bin); 43 dcl cu_$level_set entry (fixed bin); 44 dcl get_ring_ entry returns(fixed bin); 45 dcl rcp_validate_ entry (bit(36) aligned, fixed bin, ptr, fixed bin(35)); 46 /* */ 1 1 /* Begin include file ... rcp_com_seg.incl.pl1 1 2* * 1 3* * Created on 11/20/74 by Bill Silver. 1 4* * Modified on 09/19/77 by R.J.C. Kissel to add label authentication bits. 1 5* * Modified on 12/09/78 by Michael R. Jordan to add removable media bit and label_type. 1 6* * Modified 1/79 by R.J.C. Kissel to add disk label authentication bits. 1 7* * Modified 2/79 by Michael R. Jordan to add volume_density. 1 8* * Modified 11/84 by Paul Farley to add fips flag. 1 9* * Modified 1/3/85 by Fawcett to allow room for mca device type 1 10* * Modified 02/85 by Paul Farley to add no_protect and opr_int_available flags. 1 11* * This include file defines the Resource Control Package communication segment. 1 12* * This segment is used to communicate requests between the various internal 1 13* * parts of RCP. 1 14**/ 1 15 1 16 /****^ HISTORY COMMENTS: 1 17* 1) change(85-09-09,Farley), approve(85-09-09,MCR6979), 1 18* audit(85-12-09,CLJones), install(86-03-21,MR12.0-1033): 1 19* Support MCA and FIPS. 1 20* END HISTORY COMMENTS */ 1 21 1 22 dcl lock_info_ptr ptr; /* Pointer to lock info structure. */ 1 23 dcl rcs_ptr ptr; /* Pointer to base of RCS. */ 1 24 dcl rcse_ptr ptr; /* Pointer to an RCS entry. */ 1 25 1 26 dcl 1 based_rcp_id based aligned, /* Overlay of an rcp_id. */ 1 27 (2 id_count fixed bin (17), /* Unique count index. */ 1 28 2 rcse_off bit (18)) unaligned; /* Offset of rcp_com_seg entry. */ 1 29 1 30 dcl 1 rcs based (rcs_ptr) aligned, /* Begin at word zero of rcp_com_seg. */ 1 31 2 lock_info like lock_info, /* Data used to lock this segment. */ 1 32 2 ws_maxs (8) fixed bin (19), /* Max IOI workspace size in words. */ 1 33 2 ws_pmaxs (8) fixed bin (19), /* Max IOI workspace size for priv attachments. */ 1 34 2 to_maxs (8) fixed bin (71), /* Max IOI time-out intervals in microseconds. */ 1 35 2 sys_directory char (32), /* Directory used to define a system process. */ 1 36 2 sys_acs char (32), /* Entry name used to define a system process. */ 1 37 2 acs_directory char (32), /* Directory containing device ACSs. */ 1 38 2 id_count fixed bin (35), /* Counter used to form rcp_id. */ 1 39 2 max_entries fixed bin, /* Maximum number of entries allowed. */ 1 40 2 num_entries fixed bin, /* Total number of entries. */ 1 41 2 first_free_off bit (18), /* Offset of first free entry. */ 1 42 2 entry (0 refer (rcs.num_entries)) /* Array of request entries. */ 1 43 like rcse, /* See structure below. */ 1 44 2 end bit (36); /* End of rcp_com_seg. */ 1 45 1 46 dcl 1 lock_info based (lock_info_ptr) aligned, /* Used to meter locking. */ 1 47 2 lock bit (36), /* The lock itself. */ 1 48 2 num_locks fixed bin (35), /* Number of times locked. */ 1 49 2 num_lock_waits fixed bin (35), /* Number of lock waits. */ 1 50 2 time_of_lock fixed bin (71), /* Time of last lock. */ 1 51 2 tot_lock_time fixed bin (71), /* Total time locked. */ 1 52 2 tot_wait_time fixed bin (71), /* Total time waiting for lock. */ 1 53 2 starting_time fixed bin (71); /* Time metering started. */ 1 54 1 55 dcl 1 rcse based (rcse_ptr) aligned, /* Up to state must = rcpd.device. */ 1 56 2 device_name char (8), /* Name of device associated with this entry. */ 1 57 2 volume_name char (32), /* Volume name. Blank => no volume. */ 1 58 2 dtypex fixed bin, /* Device type index. */ 1 59 2 model fixed bin, /* Device model number. */ 1 60 2 num_qualifiers fixed bin, /* Number of device qualifiers. */ 1 61 2 qualifiers (4) fixed bin (35), /* Device qualifiers. */ 1 62 2 state_time fixed bin (71), /* Time device put into current state. */ 1 63 2 state fixed bin, /* 0 - free 1 - assigning 2 - assigned */ 1 64 /* 3 - attaching 4 - attached 5 - completed. */ 1 65 1 66 /* * * * * ** Following fields are unique to RCS entry. */ 1 67 2 kind fixed bin, /* 1 => attach, 2 => assign */ 1 68 2 free_off bit (18), /* Offset of next free entry. 0 => not free. */ 1 69 2 user_off bit (18), /* Offset of next entry in user list. */ 1 70 2 device_off bit (18), /* Offset of device entry in RCPD. */ 1 71 2 volume_off bit (18), /* Offset of volume entry in RCPD. */ 1 72 2 rcse_off bit (18), /* Offset of associated RCS entry. */ 1 73 2 caller_level fixed bin, /* Caller's validation level. */ 1 74 2 disposition bit (1), /* ON => retain, OFF => unassign. */ 1 75 2 flags, /* Special info flags. */ 1 76 (3 device bit (1), /* ON => assigning a specific device. */ 1 77 3 priv bit (1), /* ON => attached with IOI privilege. */ 1 78 3 system bit (1), /* ON => assigned to a system process. */ 1 79 3 t_and_d bit (1), /* ON => T&D attachment. */ 1 80 3 volume bit (1), /* ON => volume associated with this device. */ 1 81 3 writing bit (1), /* ON => writing on volume. */ 1 82 3 have_auth bit (1), /* ON => tape volume authenticated. */ 1 83 3 need_auth bit (1), /* ON => tape volume needs authentication. */ 1 84 3 auth_set bit (1), /* ON => "have_auth" has been set. */ 1 85 3 preload_allowed bit (1), /* ON => preloading of volumes is allowed. */ 1 86 3 preloaded bit (1), /* ON => volume may be loaded on device. */ 1 87 3 not_removable_media bit (1), /* ON => cannot remove volume from device. */ 1 88 3 disk_ss_pack bit (1), /* ON => disk is a storage system volume. */ 1 89 3 disk_copy_of_ss_pack bit (1), /* ON => disk is a copy of a storage system volume. */ 1 90 3 disk_io_pack bit (1), /* ON => disk has label but is not storage system. */ 1 91 3 disk_unregistered bit (1), /* ON => disk is unregistered storage system volume. */ 1 92 3 disk_unreadable bit (1), /* ON => io error reading disk label. */ 1 93 3 must_auto_register bit (1), /* ON => unregistered volume requested */ 1 94 3 fips bit (1), /* ON => FIPS device. */ 1 95 3 no_protect bit (1), /* ON => device has no protect sw. */ 1 96 3 opr_int_available bit (1), /* ON => device connected to MPC with OI button. */ 1 97 3 unused bit (6), 1 98 3 volume_density_index fixed bin (3) unsigned, /* Density of volume */ 1 99 3 label_type fixed bin (6) unsigned)unaligned, /* Type of label read by RCP. */ 1 100 2 rcp_id bit (36), /* ID of this entry. */ 1 101 2 event_id fixed bin (71), /* Caller's event channel ID. */ 1 102 2 process_id bit (36), /* ID of calling process. */ 1 103 2 group_id char (32), /* Group ID of calling process. */ 1 104 2 ecode fixed bin (35), /* Assignment error code. */ 1 105 2 version_num fixed bin, /* Device info version number. */ 1 106 2 workspace_max fixed bin (19), /* Max size of IOI workspace buffer. */ 1 107 2 timeout_max fixed bin (71), /* Max IOI time-out interval. */ 1 108 2 ioi_index fixed bin, /* IOI device index. */ 1 109 2 workspace_ptr ptr, /* Pointer to IOI workspace buffer. */ 1 110 2 caller_comment char (64); /* Caller's comment. */ 1 111 1 112 /* End of include file ... rcp_com_seg.incl.pl1 */ 47 48 /* */ 49 rcp_id = arg_rcp_id; /* Copy arguments. */ 50 new_level = arg_new_level; 51 52 call cu_$level_get (caller_level); /* Save caller's validation level. */ 53 on cleanup begin; /* If trouble reset level. */ 54 call cu_$level_set (caller_level); 55 end; 56 call cu_$level_set (get_ring_()); /* Set validation level to RCP level. */ 57 58 call rcp_validate_ (rcp_id, caller_level, rcse_ptr, ecode); 59 if ecode ^= 0 /* Can't change level if call is invalid. */ 60 then goto PROMOTE_RETURN; 61 62 call PROMOTE; /* Promote this RCS entry. */ 63 if ecode ^= 0 64 then goto PROMOTE_RETURN; 65 66 if rcse.rcse_off ^= "0"b /* Is there an associated entry? */ 67 then do; /* Yes, promote it too. */ 68 rcse_ptr = ptr(rcse_ptr, rcse.rcse_off); 69 call PROMOTE; 70 end; 71 72 PROMOTE_RETURN: 73 call cu_$level_set (caller_level); /* Reset validation level. */ 74 arg_ecode = ecode; /* Return whatever code we have. */ 75 return; 76 /* */ 77 PROMOTE: procedure; 78 79 /* This procedure is called to actually promote an RCS entry. 80** This involves just setting the caller_level in the entry. 81** However, if this is a completed attachment entry (thus already 82** promoted in IOI) then we must call IOI to promote this device 83** to the new level. An incomplete attachment will not yet be promoted 84** by IOI in ring 0. We must leave the ring 0 validation level at the 85** RCP level so the higher ring will not interfere with any RCP I/O. 86**/ 87 rcse.caller_level = new_level; /* Promote RCS entry. */ 88 89 if rcse.kind ^= 1 /* Is it an attachment kind of entry? */ 90 then return; /* No. */ 91 92 if rcse.state ^= 5 /* Is device attachment completed? */ 93 then return; /* No, not yet promoted by IOI in ring 0. */ 94 95 /* OK to promote in ring 0 since promoted once already. */ 96 call admin_gate_$ioi_promote (rcse.ioi_index, new_level, ecode); 97 98 end PROMOTE; 99 100 end rcp_promote_; SOURCE FILES USED IN THIS COMPILATION. LINE NUMBER DATE MODIFIED NAME PATHNAME 0 11/11/89 0807.0 rcp_promote_.pl1 >spec>install>1111>rcp_promote_.pl1 47 1 03/27/86 1120.0 rcp_com_seg.incl.pl1 >ldd>include>rcp_com_seg.incl.pl1 NAMES DECLARED IN THIS COMPILATION. IDENTIFIER OFFSET LOC STORAGE CLASS DATA TYPE ATTRIBUTES AND REFERENCES (* indicates a set context) NAMES DECLARED BY DECLARE STATEMENT. admin_gate_$ioi_promote 000010 constant entry external dcl 41 ref 96 arg_ecode parameter fixed bin(35,0) dcl 27 set ref 13 74* arg_new_level parameter fixed bin(17,0) dcl 28 ref 13 50 arg_rcp_id parameter bit(36) dcl 29 ref 13 49 caller_level 33 based fixed bin(17,0) level 2 in structure "rcse" dcl 1-55 in procedure "rcp_promote_" set ref 87* caller_level 000100 automatic fixed bin(17,0) dcl 31 in procedure "rcp_promote_" set ref 52* 54* 58* 72* cleanup 000104 stack reference condition dcl 37 ref 53 cu_$level_get 000012 constant entry external dcl 42 ref 52 cu_$level_set 000014 constant entry external dcl 43 ref 54 56 72 ecode 000101 automatic fixed bin(35,0) dcl 32 set ref 58* 59 63 74 96* get_ring_ 000016 constant entry external dcl 44 ref 56 56 ioi_index 60 based fixed bin(17,0) level 2 dcl 1-55 set ref 96* kind 25 based fixed bin(17,0) level 2 dcl 1-55 ref 89 lock_info based structure level 1 dcl 1-46 new_level 000102 automatic fixed bin(17,0) dcl 33 set ref 50* 87 96* ptr builtin function dcl 39 ref 68 rcp_id 000103 automatic bit(36) dcl 34 set ref 49* 58* rcp_validate_ 000020 constant entry external dcl 45 ref 58 rcse based structure level 1 dcl 1-55 rcse_off 32 based bit(18) level 2 dcl 1-55 ref 66 68 rcse_ptr 000112 automatic pointer dcl 1-24 set ref 58* 66 68* 68 68 87 89 92 96 state 24 based fixed bin(17,0) level 2 dcl 1-55 ref 92 NAMES DECLARED BY DECLARE STATEMENT AND NEVER REFERENCED. based_rcp_id based structure level 1 dcl 1-26 lock_info_ptr automatic pointer dcl 1-22 rcs based structure level 1 dcl 1-30 rcs_ptr automatic pointer dcl 1-23 rcse_off automatic bit(18) packed unaligned dcl 35 NAMES DECLARED BY EXPLICIT CONTEXT. PROMOTE 000137 constant entry internal dcl 77 ref 62 69 PROMOTE_RETURN 000124 constant label dcl 72 ref 59 63 rcp_promote_ 000012 constant entry external dcl 13 THERE WERE NO NAMES DECLARED BY CONTEXT OR IMPLICATION. STORAGE REQUIREMENTS FOR THIS PROGRAM. Object Text Link Symbol Defs Static Start 0 0 266 310 167 276 Length 500 167 22 153 76 0 BLOCK NAME STACK SIZE TYPE WHY NONQUICK/WHO SHARES STACK FRAME rcp_promote_ 106 external procedure is an external procedure. on unit on line 53 68 on unit PROMOTE internal procedure shares stack frame of external procedure rcp_promote_. STORAGE FOR AUTOMATIC VARIABLES. STACK FRAME LOC IDENTIFIER BLOCK NAME rcp_promote_ 000100 caller_level rcp_promote_ 000101 ecode rcp_promote_ 000102 new_level rcp_promote_ 000103 rcp_id rcp_promote_ 000112 rcse_ptr rcp_promote_ THE FOLLOWING EXTERNAL OPERATORS ARE USED BY THIS PROGRAM. call_ext_out return_mac enable_op ext_entry int_entry THE FOLLOWING EXTERNAL ENTRIES ARE CALLED BY THIS PROGRAM. admin_gate_$ioi_promote cu_$level_get cu_$level_set get_ring_ rcp_validate_ NO EXTERNAL VARIABLES ARE USED BY THIS PROGRAM. LINE LOC LINE LOC LINE LOC LINE LOC LINE LOC LINE LOC LINE LOC 13 000006 49 000017 50 000022 52 000024 53 000032 54 000046 55 000055 56 000056 58 000074 59 000111 62 000113 63 000114 66 000116 68 000121 69 000123 72 000124 74 000133 75 000136 77 000137 87 000140 89 000143 92 000147 96 000153 98 000166 ----------------------------------------------------------- Historical Background This edition of the Multics software materials and documentation is provided and donated to Massachusetts Institute of Technology by Group BULL including BULL HN Information Systems Inc. as a contribution to computer science knowledge. This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology, Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell BULL Inc., Groupe BULL and BULL HN Information Systems Inc. to the development of this operating system. Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970), renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture for managing computer hardware properly and for executing programs. Many subsequent operating systems incorporated Multics principles. Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. . ----------------------------------------------------------- Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without fee is hereby granted,provided that the below copyright notice and historical background appear in all copies and that both the copyright notice and historical background and this permission notice appear in supporting documentation, and that the names of MIT, HIS, BULL or BULL HN not be used in advertising or publicity pertaining to distribution of the programs without specific prior written permission. Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc. Copyright 2006 by BULL HN Information Systems Inc. Copyright 2006 by Bull SAS All Rights Reserved