robbiew | 3f9a880 | 2001-10-12 20:39:17 +0000 | [diff] [blame] | 1 | #!/bin/sh |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 2 | # |
robbiew | 599ddd7 | 2001-11-28 21:31:41 +0000 | [diff] [blame] | 3 | # Copyright (c) International Business Machines Corp., 2001 |
| 4 | # |
| 5 | # This program is free software; you can redistribute it and/or modify |
| 6 | # it under the terms of the GNU General Public License as published by |
| 7 | # the Free Software Foundation; either version 2 of the License, or |
| 8 | # (at your option) any later version. |
| 9 | # |
| 10 | # This program is distributed in the hope that it will be useful, |
| 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 13 | # the GNU General Public License for more details. |
| 14 | # |
| 15 | # You should have received a copy of the GNU General Public License |
| 16 | # along with this program; if not, write to the Free Software |
| 17 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 18 | # |
robbiew | 599ddd7 | 2001-11-28 21:31:41 +0000 | [diff] [blame] | 19 | # FILE : IDcheck.sh |
| 20 | # DESCRIPTION : checks for req'd users/groups and will create them if requested. |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 21 | # HISTORY : see the cvs log |
| 22 | # |
robbiew | 599ddd7 | 2001-11-28 21:31:41 +0000 | [diff] [blame] | 23 | |
robbiew | d23f724 | 2001-11-21 17:33:40 +0000 | [diff] [blame] | 24 | # Prompt user if ids/groups should be created |
robbiew | c0f37e6 | 2001-11-27 19:14:19 +0000 | [diff] [blame] | 25 | clear |
| 26 | echo "Checking for required user/group ids" |
| 27 | echo "" |
robbiew | d23f724 | 2001-11-21 17:33:40 +0000 | [diff] [blame] | 28 | |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 29 | # Check ids and create if needed. |
| 30 | NO_NOBODY_ID=1 |
| 31 | NO_BIN_ID=1 |
| 32 | NO_DAEMON_ID=1 |
| 33 | NO_NOBODY_GRP=1 |
| 34 | NO_BIN_GRP=1 |
| 35 | NO_DAEMON_GRP=1 |
| 36 | NO_USERS_GRP=1 |
| 37 | NO_SYS_GRP=1 |
robbiew | cefffa7 | 2003-03-03 17:06:24 +0000 | [diff] [blame] | 38 | I_AM_ROOT=0 |
robbiew | d23f724 | 2001-11-21 17:33:40 +0000 | [diff] [blame] | 39 | |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 40 | # |
| 41 | # id(1) for entry. |
| 42 | # |
| 43 | ife() { |
| 44 | id "$@" > /dev/null |
| 45 | } |
| 46 | |
| 47 | # |
| 48 | # grep(1) for entry. |
| 49 | # |
| 50 | gfe() { |
| 51 | grep -q "$@" |
| 52 | } |
| 53 | |
| 54 | prompt_for_create() { |
| 55 | if [ -n "$CREATE_ENTRIES" ] ; then |
| 56 | |
| 57 | if [ $I_AM_ROOT -eq 0 ] ; then |
| 58 | echo "Not root; can't create user / group entries on local machine". |
| 59 | CREATE_ENTRIES=0 |
| 60 | fi |
| 61 | echo "CREATE_ENTRIES variable set to $CREATE_ENTRIES ..." |
| 62 | echo |
| 63 | |
| 64 | else |
| 65 | |
| 66 | if [ $NO_NOBODY_ID -ne 0 -o $NO_BIN_ID -ne 0 -o $NO_DAEMON_ID -ne 0 -o $NO_NOBODY_GRP -ne 0 -o $NO_BIN_GRP -ne 0 -o $NO_DAEMON_GRP -ne 0 -o $NO_USERS_GRP -ne 0 -o $NO_SYS_GRP -ne 0 -a $I_AM_ROOT -ne 0 ] ; then |
subrata_modak | 4ede9d0 | 2008-09-29 18:12:16 +0000 | [diff] [blame] | 67 | echo -n "If any required user ids and/or groups are missing, would you like these created? [y/N]" |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 68 | read ans |
| 69 | case "$ans" in |
| 70 | Y*|y*) CREATE_ENTRIES=1 ;; |
| 71 | *) CREATE_ENTRIES=0 ;; |
| 72 | esac |
| 73 | else |
| 74 | CREATE_ENTRIES=0 |
| 75 | fi |
| 76 | |
| 77 | fi |
| 78 | } |
| 79 | |
subrata_modak | 694c3f0 | 2008-08-29 18:03:48 +0000 | [diff] [blame] | 80 | if [ -z ${EUID} ] ; then |
| 81 | EUID=$(id -u) |
| 82 | fi |
| 83 | |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 84 | if [ -e /etc/passwd -a ! -r /etc/passwd ] ; then |
| 85 | echo "/etc/passwd not readable by uid $EUID" |
| 86 | exit 1 |
| 87 | elif [ -e /etc/group -a ! -r /etc/group ] ; then |
| 88 | echo "/etc/group not readable by uid $EUID" |
| 89 | exit 1 |
robbiew | d23f724 | 2001-11-21 17:33:40 +0000 | [diff] [blame] | 90 | fi |
| 91 | |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 92 | ife bin; NO_BIN_ID=$? |
| 93 | ife daemon; NO_DAEMON_ID=$? |
| 94 | ife nobody; NO_NOBODY_ID=$? |
| 95 | |
| 96 | gfe '^bin:' /etc/group; NO_BIN_GRP=$? |
| 97 | gfe '^daemon:' /etc/group; NO_DAEMON_GRP=$? |
| 98 | gfe '^nobody:' /etc/group; NO_NOBODY_GRP=$? |
| 99 | gfe '^sys:' /etc/group; NO_SYS_GRP=$? |
| 100 | gfe '^users:' /etc/group; NO_USERS_GRP=$? |
| 101 | |
| 102 | if [ $EUID -eq 0 ] ; then |
| 103 | I_AM_ROOT=1 |
robbiew | d23f724 | 2001-11-21 17:33:40 +0000 | [diff] [blame] | 104 | fi |
| 105 | |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 106 | prompt_for_create |
| 107 | |
| 108 | debug_vals() { |
| 109 | |
| 110 | echo "Missing the following group / user entries:" |
| 111 | echo "nobody: $NO_NOBODY_ID" |
| 112 | echo "bin: $NO_BIN_ID" |
| 113 | echo "daemon: $NO_DAEMON_ID" |
| 114 | echo "nobody grp: $NO_NOBODY_GRP" |
| 115 | echo "bin grp: $NO_BIN_GRP" |
| 116 | echo "daemon grp: $NO_DAEMON_GRP" |
| 117 | echo "sys grp: $NO_SYS_GRP" |
| 118 | echo "users grp: $NO_USERS_GRP" |
| 119 | echo "" |
| 120 | echo "i am root: $I_AM_ROOT" |
| 121 | echo "" |
| 122 | |
| 123 | } |
| 124 | |
| 125 | #debug_vals |
| 126 | |
| 127 | if [ $CREATE_ENTRIES -ne 0 ] ; then |
| 128 | if ! touch /etc/group ; then |
| 129 | echo "Couldn't touch /etc/group" |
| 130 | exit 1 |
| 131 | fi |
robbiew | d23f724 | 2001-11-21 17:33:40 +0000 | [diff] [blame] | 132 | fi |
| 133 | |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 134 | make_user_group() { |
| 135 | local name=$1 id=$2 no_id=$3 no_grp=$4 |
| 136 | |
| 137 | if [ $no_id -eq 0 -a $no_grp -eq 0 ] ; then |
| 138 | echo "'$name' user id and group found." |
| 139 | elif [ $CREATE_ENTRIES -ne 0 ] ; then |
| 140 | echo "Creating entries for $name" |
| 141 | |
| 142 | # Avoid chicken and egg issue with id(1) call |
| 143 | # made above and below. |
| 144 | if ! gfe "^${name}:" /etc/passwd && [ $no_id -ne 0 ] ; then |
| 145 | echo "${name}:x:${id}:${id}:${name}::" >> /etc/passwd |
| 146 | fi |
| 147 | if [ $no_grp -ne 0 ] ; then |
| 148 | echo "${name}:x:$(id -u ${name}):" >> /etc/group |
| 149 | fi |
| 150 | fi |
| 151 | } |
| 152 | make_user_group nobody 99 $NO_NOBODY_ID $NO_NOBODY_GRP |
| 153 | make_user_group bin 1 $NO_BIN_ID $NO_BIN_GRP |
| 154 | make_user_group daemon 2 $NO_DAEMON_ID $NO_DAEMON_GRP |
| 155 | |
| 156 | if [ $NO_USERS_GRP -eq 0 ] ; then |
| 157 | echo "Users group found." |
| 158 | elif [ $CREATE_ENTRIES -ne 0 ] ; then |
| 159 | echo 'users:x:100:' >> /etc/group |
robbiew | d23f724 | 2001-11-21 17:33:40 +0000 | [diff] [blame] | 160 | fi |
| 161 | |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 162 | if [ $NO_SYS_GRP -eq 0 ] ; then |
| 163 | echo "Sys group found." |
| 164 | elif [ $CREATE_ENTRIES -ne 0 ] ; then |
| 165 | echo 'sys:x:3:' >> /etc/group |
robbiew | d23f724 | 2001-11-21 17:33:40 +0000 | [diff] [blame] | 166 | fi |
| 167 | |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 168 | if ife nobody && ife bin && ife daemon && |
| 169 | ife -g nobody && ife -g bin && ife -g daemon && |
subrata_modak | 4ede9d0 | 2008-09-29 18:12:16 +0000 | [diff] [blame] | 170 | gfe '^users:' /etc/group && gfe '^sys:' /etc/group && |
| 171 | gfe '^nobody:' /etc/group |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 172 | then |
| 173 | echo "" |
| 174 | echo "Required users/groups exist." |
| 175 | exit 0 |
robbiew | 06e3bdf | 2003-04-08 15:23:33 +0000 | [diff] [blame] | 176 | fi |
| 177 | |
vapier | 4fdf37f | 2008-04-28 01:36:44 +0000 | [diff] [blame] | 178 | echo "" |
robbiew | d23f724 | 2001-11-21 17:33:40 +0000 | [diff] [blame] | 179 | echo "*****************************************" |
| 180 | echo "* Required users/groups do NOT exist!!! *" |
| 181 | echo "* *" |
| 182 | echo "* Some kernel/syscall tests will FAIL! *" |
| 183 | echo "*****************************************" |
| 184 | exit 1 |