From 2e4ef5a43bf42e64f7b082e595445dcaa592cf9a Mon Sep 17 00:00:00 2001
From: John Klug <john.klug@multitech.com>
Date: Thu, 28 Jun 2018 14:39:33 -0500
Subject: mts-ubpasswd to use uuid and device-id rather than MAC by default #2

---
 src/ubpasswd.sh | 73 +++++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 56 insertions(+), 17 deletions(-)

(limited to 'src')

diff --git a/src/ubpasswd.sh b/src/ubpasswd.sh
index 65e35eb..4383c90 100755
--- a/src/ubpasswd.sh
+++ b/src/ubpasswd.sh
@@ -24,25 +24,37 @@ if ! [[ -x /sbin/mts-hashpwd ]] ; then
   exit 1
 fi
 usage() {
-  echo "ubpasswd [-u] [-d] [-s salt] [password]"
-  echo "  -u        means u-boot only (not UNIX password)"
-  echo "  -s        salt is user supplied salt"
-  echo "  -r        returns true if U-Boot password"
-  echo "            is currently required"
+  echo "ubpasswd [-c] [-m] [-n] [-r] [-u] [-d] [-s salt] [password]"
+  echo "  -c        clear the U-Boot password"
+  echo "  -d        debug"
   echo "  -f        returns true if U-Boot password"
   echo "            feature is available."
-  echo "  -d        debug"
+  echo "  -m        means use the mac to generate the password (obsolete)."
+  echo "  -n        dryrun for setting password"
+  echo "  -r        returns true if U-Boot password"
+  echo "            is currently required"
+  echo "  -s        salt is user supplied salt"
+  echo "  -u        means u-boot only (not UNIX password)"
   echo "  password  is a user supplied password"
   echo "A salt not supplied is generated."
   echo "If a password is not supplied, it is generated"
+  echo "If generating a password, and -m is not supplied,"
+  echo "the UUID is used for generating the password"
   exit 1
 }
 ((ubonly=0))
+((usemac=0))
 ((hassalt=0))
 ((debug=0))
 ((upwd=0))
-while getopts ":dfrs:u" opt; do
+((dryrun=0))
+while getopts ":cdfmnrs:u" opt; do
   case $opt in
+    c)
+      u-boot setenv mtsp
+      u-boot setenv mtss
+      exit 0
+      ;;
     f)
       if ! /bin/fgrep "mts password protected" /dev/mtdblock2 >/dev/null 2>&1;  then
 	echo "U-Boot does not support password protection."
@@ -52,6 +64,16 @@ while getopts ":dfrs:u" opt; do
         exit 0
       fi
       ;;
+    m)
+      ((usemac=1))
+      mac=$(cat "${MTS}/mac-eth")
+      if ((${#mac} == 0)) ; then
+        echo "${MTS}/mac-eth must have a non-zero length value"
+        usage
+      fi
+      ;;
+    n)
+      ((dryrun=1))
     u)
       ((ubonly=1))
       ;;
@@ -114,20 +136,33 @@ if ((upwd == 0)) ; then
   fi
 
   did=$(cat "${MTS}/device-id")
-  mac=$(cat "${MTS}/mac-eth")
+
   if ((${#did} == 0)) ; then
     echo "${MTS}/device-id must have a non-zero length value"
     usage
   fi
-    if ((${#mac} == 0)) ; then
-    echo "${mts}/mac-eth must have a non-zero length value"
-    usage
+  
+ 
+
+  if ((usemac == 0)) ; then
+    if ! [[ -f "${MTS}/uuid" ]] ; then
+      echo "${MTS}/uuid not found.  Maybe mts-io driver is not loaded?"
+      exit 1
+    fi
+    uuid=$(cat "${MTS}/uuid")
+    if ((${#uuid} == 0)) ; then
+      echo "${MTS}/uuid must have a non-zero length value"
+      usage
+    fi
+    pwdsrc="-d ${did} -u ${uuid}"
+  else
+    pwdsrc="-d ${did} -m ${mac}"
   fi
   if ((debug)) ; then
     echo Try this:
-    echo "/sbin/mts-hashpwd -d ${did} -m ${mac} ${salt}"
+    echo "/sbin/mts-hashpwd ${pwdsrc} ${salt}"
   fi
-  result=$(/sbin/mts-hashpwd -d ${did} -m ${mac} ${salt})
+  result=$(/sbin/mts-hashpwd ${pwdsrc} ${salt})
 else
   result=$(/sbin/mts-hashpwd -p "${pass}" ${salt})
 fi
@@ -160,9 +195,13 @@ if ((ubonly == 0)) ; then
     exit 1
   fi
   echo "setting ${USER} password to ${pass}"
-  echo -e "${pass}\n${pass}" | /usr/bin/passwd "${USER}" >/dev/null 2>&1
+  if ((dryrun == 0)) ; then
+    echo -e "${pass}\n${pass}" | /usr/bin/passwd "${USER}" >/dev/null 2>&1
+  fi
 fi
 echo "u-boot password is ${pass}"
-set -x
-/usr/bin/u-boot setenv mtss "$salt"
-/usr/bin/u-boot setenv mtsp "$password_hash"
+if ((dryrun == 0)) ; then
+  /usr/bin/u-boot setenv mtss "$salt"
+  /usr/bin/u-boot setenv mtsp "$password_hash"
+fi
+
-- 
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