blob: 7b8f63e7bbee88a2879b1fd039a9f8ce2bc012a9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
#!/bin/sh
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
#
# This implementation is incomplete: Discovery mode is not implemented and
# the argument handling doesn't follow currently agreed formats. This is mainly
# because rfc4173 does not say anything about iscsi_initiator but open-iscsi's
# iscsistart needs this.
#
type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
PATH=/usr/sbin:/usr/bin:/sbin:/bin
# Huh? Empty $1?
[ -z "$1" ] && exit 1
# Huh? Empty $2?
[ -z "$2" ] && exit 1
# Huh? Empty $3? This isn't really necessary, since NEWROOT isn't
# used here. But let's be consistent
[ -z "$3" ] && exit 1
# root is in the form root=iscsi:[<servername>]:[<protocol>]:[<port>]:[<LUN>]:<targetname>
netif="$1"
iroot="$2"
source_all /etc/conf.d
# If it's not iscsi we don't continue
[ "${iroot%%:*}" = "iscsi" ] || exit 1
iroot=${iroot#iscsi:}
# XXX modprobe crc32c should go in the cmdline parser, but I haven't yet
# figured out a way how to check whether this is built-in or not
modprobe crc32c 2>/dev/null
[ -e /tmp/root.info ] && . /tmp/root.info
[ -e /sys/module/bnx2i ] && iscsiuio
if getargbool 0 rd.iscsi.firmware -y iscsi_firmware ; then
if [ -n "${root%%block:*}" ]; then
# if root is not specified try to mount the whole iSCSI LUN
printf 'ENV{DEVTYPE}!="partition", SYMLINK=="disk/by-path/*-iscsi-*-*", SYMLINK+="root"\n' >> /etc/udev/rules.d/99-iscsi-root.rules
udevadm control --reload
fi
iscsistart -b
exit 0
fi
unset iscsi_initiator iscsi_target_name iscsi_target_ip iscsi_target_port
unset iscsi_target_group iscsi_protocol iscsirw iscsi_lun
unset iscsi_username iscsi_password
unset iscsi_in_username iscsi_in_password
# override conf settings by command line options
arg=$(getargs rd.iscsi.initiator iscsi_initiator=)
[ -n "$arg" ] && iscsi_initiator=$arg
arg=$(getargs rd.iscsi.target.name iscsi_target_name=)
[ -n "$arg" ] && iscsi_target_name=$arg
arg=$(getargs rd.iscsi.target.ip iscsi_target_ip)
[ -n "$arg" ] && iscsi_target_ip=$arg
arg=$(getargs rd.iscsi.target.port iscsi_target_port=)
[ -n "$arg" ] && iscsi_target_port=$arg
arg=$(getargs rd.iscsi.target.group iscsi_target_group=)
[ -n "$arg" ] && iscsi_target_group=$arg
arg=$(getargs rd.iscsi.username iscsi_username=)
[ -n "$arg" ] && iscsi_username=$arg
arg=$(getargs rd.iscsi.password iscsi_password)
[ -n "$arg" ] && iscsi_password=$arg
arg=$(getargs rd.iscsi.in.username iscsi_in_username=)
[ -n "$arg" ] && iscsi_in_username=$arg
arg=$(getargs rd.iscsi.in.password iscsi_in_password=)
[ -n "$arg" ] && iscsi_in_password=$arg
handle_netroot()
{
iroot=$1
# override conf/commandline options by dhcp root_path
# FIXME this assumes that all values have been provided
OLDIFS="$IFS"
IFS=@
set $iroot
if [ $# -gt 1 ]; then
authinfo=$1; shift
iroot=$*
# allow empty authinfo to allow having an @ in iscsi_target_name like this:
# netroot=iscsi:@192.168.1.100::3260::iqn.2009-01.com.example:testdi@sk
if [ -n "$authinfo" ]; then
IFS=:
set $authinfo
iscsi_username=$1
iscsi_password=$2
if [ $# -gt 2 ]; then
iscsi_in_username=$3
iscsi_in_password=$4
fi
fi
fi
IFS="$OLDIFS"
local v=${iroot}:
local i
set --
while [ -n "$v" ]; do
if [ "${v#\[*:*:*\]:}" != "$v" ]; then
# handle IPv6 address
i="${v%%\]:*}"
i="${i##\[}"
set -- "$@" "$i"
v=${v#\[$i\]:}
else
set -- "$@" "${v%%:*}"
v=${v#*:}
fi
done
iscsi_target_ip=$1; shift
iscsi_protocol=$1; shift # ignored
iscsi_target_port=$1; shift
iscsi_lun=$1; shift
IFS=:
iscsi_target_name=$*
IFS="$OLDIFS"
# XXX is this needed?
getarg ro && iscsirw=ro
getarg rw && iscsirw=rw
fsopts=${fsopts+$fsopts,}${iscsirw}
if [ -z $iscsi_initiator ]; then
# XXX Where are these from?
[ -f /etc/initiatorname.iscsi ] && . /etc/initiatorname.iscsi
[ -f /etc/iscsi/initiatorname.iscsi ] && . /etc/iscsi/initiatorname.iscsi
iscsi_initiator=$InitiatorName
# XXX rfc3720 says 'SCSI Initiator Name: The iSCSI Initiator Name specifies
# the worldwide unique name of the initiator.' Could we use hostname/ip
# if missing?
fi
if [ -z $iscsi_initiator ]; then
if [ -f /sys/firmware/ibft/initiator/initiator-name ]; then
iscsi_initiator=$(while read line; do echo $line;done < /sys/firmware/ibft/initiator-name)
fi
fi
if [ -z $iscsi_target_port ]; then
iscsi_target_port=3260
fi
if [ -z $iscsi_target_group ]; then
iscsi_target_group=1
fi
if [ -z $iscsi_initiator ]; then
# XXX is this correct?
iscsi_initiator=$(iscsi-iname)
fi
if [ -z $iscsi_lun ]; then
iscsi_lun=0
fi
echo "InitiatorName='$iscsi_initiator'" > /run/initiatorname.iscsi
ln -s /run/initiatorname.iscsi /dev/.initiatorname.iscsi
# FIXME $iscsi_protocol??
if [ -n "${root%%block:*}" ]; then
# if root is not specified try to mount the whole iSCSI LUN
printf 'SYMLINK=="disk/by-path/*-iscsi-*-%s", SYMLINK+="root"\n' $iscsi_lun >> /etc/udev/rules.d/99-iscsi-root.rules
fi
# inject new exit_if_exists
echo 'settle_exit_if_exists="--exit-if-exists=/dev/root"; rm "$job"' > $hookdir/initqueue/iscsi-settle.sh
# force udevsettle to break
> $hookdir/initqueue/work
iscsistart -i $iscsi_initiator -t $iscsi_target_name \
-g $iscsi_target_group -a $iscsi_target_ip \
-p $iscsi_target_port \
${iscsi_username+-u $iscsi_username} \
${iscsi_password+-w $iscsi_password} \
${iscsi_in_username+-U $iscsi_in_username} \
${iscsi_in_password+-W $iscsi_in_password} || :
# install mount script
if [ -n "${root%%block:*}" ]; then
# if root is not specified try to mount the whole iSCSI LUN
echo "iscsi_lun=$iscsi_lun . /bin/mount-lun.sh " > $hookdir/mount/01-$$-iscsi.sh
fi
}
# loop over all netroot parameter
if getarg netroot; then
for nroot in $(getargs netroot); do
[ "${netroot%%:*}" = "iscsi" ] || continue
handle_netroot ${nroot##iscsi:}
done
else
handle_netroot $iroot
fi
need_shutdown
# now we have a root filesystem somewhere in /dev/sda*
# let the normal block handler handle root=
exit 0
|
