1#!/bin/sh
2# Copyright (C) 2006-2014 OpenWrt.org
3# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
4# Copyright (C) 2010 Vertical Communications
5
6
7debug () {
8	${DEBUG:-:} "$@"
9}
10
11# newline
12N="
13"
14
15_C=0
16NO_EXPORT=1
17LOAD_STATE=1
18LIST_SEP=" "
19
20append() {
21	local var="$1"
22	local value="$2"
23	local sep="${3:- }"
24
25	eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
26}
27
28list_contains() {
29	local var="$1"
30	local str="$2"
31	local val
32
33	eval "val=\" \${$var} \""
34	[ "${val%% $str *}" != "$val" ]
35}
36
37config_load() {
38	[ -n "$IPKG_INSTROOT" ] && return 0
39	uci_load "$@"
40}
41
42reset_cb() {
43	config_cb() { return 0; }
44	option_cb() { return 0; }
45	list_cb() { return 0; }
46}
47reset_cb
48
49package() {
50	return 0
51}
52
53config () {
54	local cfgtype="$1"
55	local name="$2"
56
57	export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
58	name="${name:-cfg$CONFIG_NUM_SECTIONS}"
59	append CONFIG_SECTIONS "$name"
60	[ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name"
61	export ${NO_EXPORT:+-n} CONFIG_SECTION="$name"
62	export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
63}
64
65option () {
66	local varname="$1"; shift
67	local value="$*"
68
69	export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value"
70	[ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*"
71}
72
73list() {
74	local varname="$1"; shift
75	local value="$*"
76	local len
77
78	config_get len "$CONFIG_SECTION" "${varname}_LENGTH" 0
79	[ $len = 0 ] && append CONFIG_LIST_STATE "${CONFIG_SECTION}_${varname}"
80	len=$(($len + 1))
81	config_set "$CONFIG_SECTION" "${varname}_ITEM$len" "$value"
82	config_set "$CONFIG_SECTION" "${varname}_LENGTH" "$len"
83	append "CONFIG_${CONFIG_SECTION}_${varname}" "$value" "$LIST_SEP"
84	list_cb "$varname" "$*"
85}
86
87config_unset() {
88	config_set "$1" "$2" ""
89}
90
91# config_get <variable> <section> <option> [<default>]
92# config_get <section> <option>
93config_get() {
94	case "$3" in
95		"") eval echo "\${CONFIG_${1}_${2}:-\${4}}";;
96		*)  eval export ${NO_EXPORT:+-n} -- "${1}=\${CONFIG_${2}_${3}:-\${4}}";;
97	esac
98}
99
100# config_get_bool <variable> <section> <option> [<default>]
101config_get_bool() {
102	local _tmp
103	config_get _tmp "$2" "$3" "$4"
104	case "$_tmp" in
105		1|on|true|yes|enabled) _tmp=1;;
106		0|off|false|no|disabled) _tmp=0;;
107		*) _tmp="$4";;
108	esac
109	export ${NO_EXPORT:+-n} "$1=$_tmp"
110}
111
112config_set() {
113	local section="$1"
114	local option="$2"
115	local value="$3"
116	local old_section="$CONFIG_SECTION"
117
118	CONFIG_SECTION="$section"
119	option "$option" "$value"
120	CONFIG_SECTION="$old_section"
121}
122
123config_foreach() {
124	local ___function="$1"
125	[ "$#" -ge 1 ] && shift
126	local ___type="$1"
127	[ "$#" -ge 1 ] && shift
128	local section cfgtype
129
130	[ -z "$CONFIG_SECTIONS" ] && return 0
131	for section in ${CONFIG_SECTIONS}; do
132		config_get cfgtype "$section" TYPE
133		[ -n "$___type" -a "x$cfgtype" != "x$___type" ] && continue
134		eval "$___function \"\$section\" \"\$@\""
135	done
136}
137
138config_list_foreach() {
139	[ "$#" -ge 3 ] || return 0
140	local section="$1"; shift
141	local option="$1"; shift
142	local function="$1"; shift
143	local val
144	local len
145	local c=1
146
147	config_get len "${section}" "${option}_LENGTH"
148	[ -z "$len" ] && return 0
149	while [ $c -le "$len" ]; do
150		config_get val "${section}" "${option}_ITEM$c"
151		eval "$function \"\$val\" \"\$@\""
152		c="$(($c + 1))"
153	done
154}
155
156insert_modules() {
157	for m in $*; do
158		if [ -f /etc/modules.d/$m ]; then
159			sed 's/^[^#]/insmod &/' /etc/modules.d/$m | ash 2>&- || :
160		else
161			modprobe $m
162		fi
163	done
164}
165
166default_prerm() {
167	local name
168	name=$(basename ${1%.*})
169	[ -f /usr/lib/opkg/info/${name}.prerm-pkg ] && . /usr/lib/opkg/info/${name}.prerm-pkg
170	for i in `cat /usr/lib/opkg/info/${name}.list | grep "^/etc/init.d/"`; do
171		$i disable
172		$i stop
173	done
174}
175
176add_group_and_user() {
177	local pkgname="$1"
178	local rusers="$(sed -ne 's/^Require-User: *//p' $root/usr/lib/opkg/info/${pkgname}.control 2>/dev/null)"
179
180	if [ -n "$rusers" ]; then
181		local tuple oIFS="$IFS"
182		for tuple in $rusers; do
183			local uid gid uname gname
184
185			IFS=":"
186			set -- $tuple; uname="$1"; gname="$2"
187			IFS="="
188			set -- $uname; uname="$1"; uid="$2"
189			set -- $gname; gname="$1"; gid="$2"
190			IFS="$oIFS"
191
192			if [ -n "$gname" ] && [ -n "$gid" ]; then
193				group_exists "$gname" || group_add "$gname" "$gid"
194			elif [ -n "$gname" ]; then
195				group_add_next "$gname"; gid=$?
196			fi
197
198			if [ -n "$uname" ]; then
199				user_exists "$uname" || user_add "$uname" "$uid" "$gid"
200			fi
201
202			if [ -n "$uname" ] && [ -n "$gname" ]; then
203				group_add_user "$gname" "$uname"
204			fi
205
206			unset uid gid uname gname
207		done
208	fi
209}
210
211default_postinst() {
212	local root="${IPKG_INSTROOT}"
213	local pkgname="$(basename ${1%.*})"
214	local ret=0
215
216	add_group_and_user "${pkgname}"
217
218	if [ -f "$root/usr/lib/opkg/info/${pkgname}.postinst-pkg" ]; then
219		( . "$root/usr/lib/opkg/info/${pkgname}.postinst-pkg" )
220		ret=$?
221	fi
222
223	if [ -z "$root" ] && grep -q -s "^/etc/uci-defaults/" "$root/usr/lib/opkg/info/${pkgname}.list"; then
224		. /lib/functions/system.sh
225		[ -d /tmp/.uci ] || mkdir -p /tmp/.uci
226		cd /etc/uci-defaults
227		for i in $(grep -s "^/etc/uci-defaults/" "$root/usr/lib/opkg/info/${pkgname}.list"); do
228			( . "./$(basename $i)" ) && rm -f "$i"
229		done
230		uci commit
231		cd $OLDPWD
232	fi
233
234	if [ -z "$root" ] && grep -q -s "^/etc/uci-defaults/" "/usr/lib/opkg/info/${pkgname}.list"; then
235		. /lib/functions/system.sh
236		[ -d /tmp/.uci ] || mkdir -p /tmp/.uci
237		cd /etc/uci-defaults
238		for i in $(grep -s "^/etc/uci-defaults/" "/usr/lib/opkg/info/${pkgname}.list"); do
239			( . "./$(basename $i)" ) && rm -f "$i"
240		done
241		uci commit
242		cd $OLDPWD
243	fi
244
245	[ -n "$root" ] || rm -f /tmp/luci-indexcache 2>/dev/null
246
247	if [ "$PKG_UPGRADE" != "1" ]; then
248		local shell="$(which bash)"
249		for i in $(grep -s "^/etc/init.d/" "$root/usr/lib/opkg/info/${pkgname}.list"); do
250			if [ -n "$root" ]; then
251				${shell:-/bin/sh} "$root/etc/rc.common" "$root$i" enable
252			else
253				"$i" enable
254				"$i" start
255			fi
256		done
257	fi
258
259	return $ret
260}
261
262include() {
263	local file
264
265	for file in $(ls $1/*.sh 2>/dev/null); do
266		. $file
267	done
268}
269
270find_mtd_index() {
271	local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')"
272	local INDEX="${PART##mtd}"
273
274	echo ${INDEX}
275}
276
277find_mtd_part() {
278	local INDEX=$(find_mtd_index "$1")
279	local PREFIX=/dev/mtdblock
280
281	[ -d /dev/mtdblock ] && PREFIX=/dev/mtdblock/
282	echo "${INDEX:+$PREFIX$INDEX}"
283}
284
285group_add() {
286	local name="$1"
287	local gid="$2"
288	local rc
289	[ -f "${IPKG_INSTROOT}/etc/group" ] || return 1
290	[ -n "$IPKG_INSTROOT" ] || lock /var/lock/group
291	echo "${name}:x:${gid}:" >> ${IPKG_INSTROOT}/etc/group
292	rc=$?
293	[ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/group
294	return $rc
295}
296
297group_exists() {
298	grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/group
299}
300
301group_add_next() {
302	local gid gids
303	gid=$(grep -s "^${1}:" ${IPKG_INSTROOT}/etc/group | cut -d: -f3)
304	[ -n "$gid" ] && return $gid
305	gids=$(cat ${IPKG_INSTROOT}/etc/group | cut -d: -f3)
306	gid=100
307	while [ -n "$(echo $gids | grep $gid)" ] ; do
308	        gid=$((gid + 1))
309	done
310	group_add $1 $gid
311	return $gid
312}
313
314group_add_user() {
315	local grp delim=","
316	grp=$(grep -s "^${1}:" ${IPKG_INSTROOT}/etc/group)
317	[ -z "$(echo $grp | cut -d: -f4 | grep $2)" ] || return
318	[ -n "$(echo $grp | grep ":$")" ] && delim=""
319	[ -n "$IPKG_INSTROOT" ] || lock /var/lock/passwd
320	sed -i "s/$grp/$grp$delim$2/g" ${IPKG_INSTROOT}/etc/group
321	[ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/passwd
322}
323
324user_add() {
325	local name="${1}"
326	local uid="${2}"
327	local gid="${3}"
328	local desc="${4:-$1}"
329	local home="${5:-/var/run/$1}"
330	local shell="${6:-/bin/false}"
331	local rc
332	[ -z "$uid" ] && {
333		uids=$(cat ${IPKG_INSTROOT}/etc/passwd | cut -d: -f3)
334		uid=100
335		while [ -n "$(echo $uids | grep $uid)" ] ; do
336		        uid=$((uid + 1))
337		done
338	}
339	[ -z "$gid" ] && gid=$uid
340	[ -f "${IPKG_INSTROOT}/etc/passwd" ] || return 1
341	[ -n "$IPKG_INSTROOT" ] || lock /var/lock/passwd
342	echo "${name}:x:${uid}:${gid}:${desc}:${home}:${shell}" >> ${IPKG_INSTROOT}/etc/passwd
343	echo "${name}:x:0:0:99999:7:::" >> ${IPKG_INSTROOT}/etc/shadow
344	rc=$?
345	[ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/passwd
346	return $rc
347}
348
349user_exists() {
350	grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/passwd
351}
352
353[ -z "$IPKG_INSTROOT" -a -f /lib/config/uci.sh ] && . /lib/config/uci.sh
354