[src/trunk]: src Provide a script for devpubd(8) that creates symlinks for ea...

[mlelstv <mlelstv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/263fffbd178e
branches:  trunk
changeset: 783895:263fffbd178e
user:      mlelstv <mlelstv%NetBSD.org@localhost>
date:      Fri Jan 11 23:49:23 2013 +0000

description:
Provide a script for devpubd(8) that creates symlinks for each dk(4)
device under /dev/wedges so that you can access them by name.

diffstat:

 distrib/sets/lists/base/mi       |   3 +-
 sbin/devpubd/Makefile            |   4 +-
 sbin/devpubd/devpubd.8           |   6 ++-
 sbin/devpubd/hooks/02-wedgenames |  71 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 79 insertions(+), 5 deletions(-)

diffs (130 lines):

diff -r 48fb1f2aa333 -r 263fffbd178e distrib/sets/lists/base/mi
--- a/distrib/sets/lists/base/mi        Fri Jan 11 20:42:20 2013 +0000
+++ b/distrib/sets/lists/base/mi        Fri Jan 11 23:49:23 2013 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.1015 2012/12/04 23:38:57 spz Exp $
+# $NetBSD: mi,v 1.1016 2013/01/11 23:49:23 mlelstv Exp $
 #
 # Note:        Don't delete entries from here - mark them as "obsolete" instead,
 #      unless otherwise stated below.
@@ -201,6 +201,7 @@
 ./libexec                                      base-sys-root
 ./libexec/devpubd-hooks                                base-sysutil-root
 ./libexec/devpubd-hooks/01-makedev             base-sysutil-root
+./libexec/devpubd-hooks/02-wedgenames          base-sysutil-root
 ./libexec/devpubd-run-hooks                    base-sysutil-root
 ./libexec/dhcpcd-hooks                         base-dhcpcd-root
 ./libexec/dhcpcd-hooks/01-test                 base-dhcpcd-root
diff -r 48fb1f2aa333 -r 263fffbd178e sbin/devpubd/Makefile
--- a/sbin/devpubd/Makefile     Fri Jan 11 20:42:20 2013 +0000
+++ b/sbin/devpubd/Makefile     Fri Jan 11 23:49:23 2013 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.2 2011/09/06 21:30:12 riz Exp $
+# $NetBSD: Makefile,v 1.3 2013/01/11 23:49:23 mlelstv Exp $
 
 PROG=          devpubd
 SRCS=          devpubd.c
@@ -13,7 +13,7 @@
 SCRIPTSDIR_devpubd-run-hooks=  /libexec
 
 .PATH: ${.CURDIR}/hooks
-HOOKS=         01-makedev
+HOOKS=         01-makedev 02-wedgenames
 SCRIPTS+=      ${HOOKS:C,^,hooks/,}
 .for f in ${HOOKS}
 SCRIPTSDIR_hooks/${f}= /libexec/devpubd-hooks
diff -r 48fb1f2aa333 -r 263fffbd178e sbin/devpubd/devpubd.8
--- a/sbin/devpubd/devpubd.8    Fri Jan 11 20:42:20 2013 +0000
+++ b/sbin/devpubd/devpubd.8    Fri Jan 11 23:49:23 2013 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: devpubd.8,v 1.2 2012/11/22 17:16:30 reed Exp $
+.\"    $NetBSD: devpubd.8,v 1.3 2013/01/11 23:49:23 mlelstv Exp $
 .\"
 .\" Copyright (c) 2011 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -62,7 +62,9 @@
 and the device file name.
 The default installation supplies the
 .Pa 01-makedev
-script for creating a device node.
+script for creating a device node and the
+.Pa 02-wedgenames
+script for creating symlinks to wedge devices under /dev/wedges.
 Additional scripts may be added for other dynamic device actions.
 .Sh SEE ALSO
 .Xr drvctl 8 ,
diff -r 48fb1f2aa333 -r 263fffbd178e sbin/devpubd/hooks/02-wedgenames
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sbin/devpubd/hooks/02-wedgenames  Fri Jan 11 23:49:23 2013 +0000
@@ -0,0 +1,71 @@
+#!/bin/sh
+#
+# $NetBSD: 02-wedgenames,v 1.1 2013/01/11 23:49:23 mlelstv Exp $
+#
+# Try to maintain symlinks to wedge devices
+#
+
+event="$1"
+device="$2"
+
+wedgedir=/dev/wedges
+
+remove_wedge() {
+       find $wedgedir -print \
+       | sed -e 's# #\\ #g' \
+       | while read w; do
+               t=$(readlink "$w")
+               if [ x"$t" = x"/dev/$device" ]; then
+                       rm -f "$w"
+                       basedir=$(dirname "$w")
+                       rmdir -p "$basedir" 2>/dev/null
+               fi
+       done
+}
+
+add_wedge() {
+       n=$(dkctl "$device" getwedgeinfo \
+               | sed -ne '1s#^[^:]*: ##p' \
+               | awk -v GOOD='._:;!^$&~()[]{}=,+-/' '
+               BEGIN {
+                       for (i=0; i<256; ++i)
+                               ord[sprintf("%c",i)] = i
+               }
+               {
+                       n = length($0)
+                       o = ""
+                       for (i=1; i<=n; ++i) {
+                               c = substr($0,i,1)
+                               if (c ~ /^[[:alnum:]]$/ || index(GOOD,c) > 0) {
+                                       o = o c
+                               } else {
+                                       o = o sprintf("%%%02x",ord[c])
+                               }
+                       }
+                       printf "%s",o
+               }'
+       )
+       case $n in
+       "") ;;
+       *)
+               test -d $wedgedir || mkdir -m 755 $wedgedir
+               basedir=$(dirname "$wedgedir/$n")
+               test -d "$basedir" || mkdir -p -m 755 "$basedir"
+               ln -s "/dev/$device" "$wedgedir/$n"
+               ;;
+       esac
+}
+
+case $device in
+dk*)
+       case $event in
+       device-attach)
+               remove_wedge
+               add_wedge
+               ;;
+       device-detach)
+               remove_wedge
+               ;;
+       esac
+       ;;
+esac