Added group= facility to /etc/ttys for tty grouping for more
more manageable and convenient referencing by login.conf (login class database) and (e.g.) login.access. This is the first of a group of commits which implements the login class capabilities database.
This commit is contained in:
David Nugent
parent
0cfdb0f162
commit
4ae89ecddd
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=21189
@ -42,6 +42,8 @@
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#define _TTYS_ON "on"
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#define _TTYS_SECURE "secure"
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#define _TTYS_WINDOW "window"
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#define _TTYS_GROUP "group"
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#define _TTYS_NOGROUP "none"
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struct ttyent {
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char *ty_name; /* terminal device name */
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@ -52,6 +54,7 @@ struct ttyent {
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int ty_status; /* status flags */
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char *ty_window; /* command to start up window manager */
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char *ty_comment; /* comment field */
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char *ty_group; /* tty group */
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};
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#include <sys/cdefs.h>
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@ -31,7 +31,7 @@
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.\"
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.\" @(#)getttyent.3 8.1 (Berkeley) 6/4/93
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.\"
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.Dd June 4, 1993
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.Dd November 17, 1996
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.Dt GETTTYENT 3
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.Os BSD 4.3
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.Sh NAME
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@ -69,6 +69,7 @@ struct ttyent {
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int ty_status; /* flag values */
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char *ty_window; /* command for window manager */
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char *ty_comment; /* comment field */
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char *ty_group; /* tty group name */
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};
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.Ed
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.Pp
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@ -98,6 +99,10 @@ Allow users with a uid of 0 to login on this terminal.
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.El
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.It Fa ty_window
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The command to execute for a window system associated with the line.
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.It Fa ty_group
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A group name to which the tty belongs.
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If no group is specified in the ttys description file,
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then the tty is placed in an anonymous group called "none".
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.It Fa ty_comment
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Any trailing comment field, with any leading hash marks (``#'') or
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whitespace removed.
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@ -110,6 +110,7 @@ getttyent()
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}
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tty.ty_status = 0;
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tty.ty_window = NULL;
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tty.ty_group = _TTYS_NOGROUP;
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#define scmp(e) !strncmp(p, e, sizeof(e) - 1) && isspace(p[sizeof(e) - 1])
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#define vcmp(e) !strncmp(p, e, sizeof(e) - 1) && p[sizeof(e) - 1] == '='
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@ -122,6 +123,8 @@ getttyent()
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tty.ty_status |= TTY_SECURE;
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else if (vcmp(_TTYS_WINDOW))
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tty.ty_window = value(p);
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else if (vcmp(_TTYS_GROUP))
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tty.ty_group = value(p);
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else
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break;
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}
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@ -30,9 +30,9 @@
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.\" SUCH DAMAGE.
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.\"
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.\" from: @(#)ttys.5 8.1 (Berkeley) 6/4/93
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.\" $Id: ttys.5,v 1.1.1.2 1996/04/13 15:33:16 joerg Exp $
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.\" $Id: ttys.5,v 1.3 1996/05/05 19:01:13 joerg Exp $
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.\" "
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.Dd June 4, 1993
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.Dd November 17, 1996
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.Dt TTYS 5
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.Os
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.Sh NAME
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@ -86,10 +86,15 @@ or
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The remaining fields set flags in the
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.Fa ty_status
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entry (see
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.Xr getttyent 3 )
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or specify a window system process that
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.Xr getttyent 3 ),
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specify a window system process that
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.Xr init 8
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will maintain for the terminal line.
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will maintain for the terminal line, or specify a tty group
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name that allows the login class database (see
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.Xr login.conf 5 )
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to refer to many ttys as a group, to selectively allow or
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deny access or enable or disable accounting facilities for
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ttys as a group.
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.Pp
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As flag values, the strings ``on'' and ``off'' specify that
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.Xr init
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@ -117,21 +122,31 @@ string which
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will execute
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.Em before
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starting the command specified by the second field.
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.Pp
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The string ``group='' may be followed by a group name comprised of
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alphanumeric characters that can be used by
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.Xr login.group 5
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to refer to many tty lines as a group to enable or disable access
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and accounting facilities.
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If no group is specified, then the tty becomes a member of the group
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"none".
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For backwards compatibility, the ``group='' should appear last on the
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line, immediately before the optional comment.
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.Sh EXAMPLES
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.Bd -literal
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# root login on console at 1200 baud
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console "/usr/libexec/getty std.1200" vt100 on secure
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# dialup at 1200 baud, no root logins
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ttyd0 "/usr/libexec/getty d1200" dialup on # 555-1234
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ttyd0 "/usr/libexec/getty d1200" dialup on group=dialup # 555-1234
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# Mike's terminal: hp2621
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ttyh0 "/usr/libexec/getty std.9600" hp2621-nl on # 457 Evans
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ttyh0 "/usr/libexec/getty std.9600" hp2621-nl on group=dialup # 457 Evans
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# John's terminal: vt100
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ttyh1 "/usr/libexec/getty std.9600" vt100 on # 459 Evans
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ttyh1 "/usr/libexec/getty std.9600" vt100 on group=dialup # 459 Evans
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# terminal emulate/window system
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ttyv0 "/usr/new/xterm -L :0" vs100 on window="/usr/new/Xvs100 0"
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# Network pseudo ttys -- don't enable getty
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ttyp0 none network
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ttyp1 none network off
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ttyp0 none network group=pty
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ttyp1 none network off group=pty
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.Ed
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.Sh FILES
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.Bl -tag -width /etc/ttys -compact
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@ -142,6 +157,7 @@ ttyp1 none network off
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.Xr getttyent 3 ,
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.Xr ttyslot 3 ,
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.Xr gettytab 5 ,
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.Xr login.conf 5 ,
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.Xr termcap 5 ,
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.Xr getty 8 ,
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.Xr init 8
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