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1 | #!/bin/sh - keep it for file(1) to get bourne shell script result | |
2 | # | |
3 | # $Id$ | |
4 | # | |
5 | # This is not a shell script; it provides functions to network scripts | |
6 | # that source it. | |
7 | ||
8 | source_config () | |
9 | { | |
10 | local foundconfig=0 | |
11 | ||
12 | DEVNAME=${CONFIG##*/} | |
13 | DEVNAME=${DEVNAME##ifcfg-} | |
14 | DEVNAME=${DEVNAME##tnlcfg-} | |
15 | ||
16 | if [[ "$CONFIG" = /* ]]; then | |
17 | if [ -f "$CONFIG" ]; then | |
18 | . "$CONFIG" | |
19 | foundconfig=1 | |
20 | fi | |
21 | elif [ -f "/etc/sysconfig/interfaces/$CONFIG" ]; then | |
22 | . "/etc/sysconfig/interfaces/$CONFIG" | |
23 | foundconfig=1 | |
24 | fi | |
25 | ||
26 | # This is sanity check so that if you've copied ifcfg-eth0 to ifcfg-eth1 | |
27 | # and forgot to alter DEVICE= line you won't accidentally bring down eth0 | |
28 | # while executing ifdown eth1. We do that only if configuration file exists | |
29 | # (sometimes ifcfg-xyz isn't needed at all like server-side pppoe pppX interfaces) | |
30 | if [ "$foundconfig" -eq "1" -a "$DEVICE" -a "$DEVNAME" != "$DEVICE" ]; then | |
31 | echo >&2 "$0: DEVICE specified in $CONFIG does not match filename. Aborting!" | |
32 | exit 1 | |
33 | fi | |
34 | ||
35 | if [ "${PREFIX}" ] && [[ "$IPADDR" != */* ]]; then | |
36 | IPADDR="$IPADDR/$PREFIX" | |
37 | fi | |
38 | } | |
39 | ||
40 | do_netreport () | |
41 | { | |
42 | # Notify programs that have requested notification | |
43 | ( cd /var/run/netreport || exit | |
44 | for i in *; do | |
45 | [ -f $i ] && kill -SIGIO $i >/dev/null 2>&1 || \ | |
46 | rm -f $i >/dev/null 2>&1 | |
47 | done | |
48 | ) | |
49 | } | |
50 | ||
51 | need_hostname() | |
52 | { | |
53 | local hostname=$(hostname) | |
54 | if [ "$hostname" = "(none)" -o "$hostname" = "localhost" -o "$hostname" = "localhost.localdomain" ]; then | |
55 | NEEDHOSTNAME=yes | |
56 | else | |
57 | unset NEEDHOSTNAME | |
58 | fi | |
59 | } | |
60 | ||
61 | set_hostname() | |
62 | { | |
63 | local hostname domain | |
64 | ||
65 | hostname=$(echo $1 | awk ' { gsub(/\..*$/,NIL); print $0; } ') | |
66 | domain=$(echo $1 | awk ' { sub(/^[^\.]*\./,NIL); print $0; } ') | |
67 | ||
68 | if [ "$hostname" ]; then | |
69 | echo "$hostname" > /etc/HOSTNAME | |
70 | hostname $hostname | |
71 | fi | |
72 | ||
73 | if [ "$domain" ]; then | |
74 | # XXX umask and possible /etc/resolv.conf symlink breakage | |
75 | > /etc/resolv.conf.new | |
76 | if ! grep -q "search $domain" /etc/resolv.conf; then | |
77 | echo "search $domain" >> /etc/resolv.conf.new | |
78 | fi | |
79 | echo "domain $domain" >> /etc/resolv.conf.new | |
80 | grep -v "^domain " /etc/resolv.conf >> /etc/resolv.conf.new | |
81 | mv -f /etc/resolv.conf.new /etc/resolv.conf | |
82 | fi | |
83 | } | |
84 | ||
85 | set_dhcpclient() | |
86 | { | |
87 | if [ "$BOOTPROTO" = "bootp" -o "$BOOTPROTO" = "pump" ]; then | |
88 | DHCP_CLIENT=/sbin/pump | |
89 | fi | |
90 | ||
91 | if [ -z "$DHCP_CLIENT" ]; then | |
92 | if [ "$BOOTPROTO" = "zeroconf" -a -x /usr/sbin/avahi-autoipd ]; then | |
93 | DHCP_CLIENT=/usr/sbin/avahi-autoipd | |
94 | elif [ -x /sbin/dhcpcd ]; then | |
95 | DHCP_CLIENT=/sbin/dhcpcd | |
96 | elif [ -x /sbin/dhclient ]; then | |
97 | DHCP_CLIENT=/sbin/dhclient | |
98 | elif [ -x /sbin/dhcpxd ]; then | |
99 | DHCP_CLIENT=/sbin/dhcpxd | |
100 | elif [ -x /sbin/pump ]; then | |
101 | DHCP_CLIENT=/sbin/pump | |
102 | elif [ "$BOOTPROTO" = "auto" -a -x /usr/sbin/avahi-autoipd ]; then | |
103 | DHCP_CLIENT=/usr/sbin/avahi-autoipd | |
104 | else | |
105 | nls "Can't find a DHCP client." | |
106 | exit 1 | |
107 | fi | |
108 | fi | |
109 | } | |
110 | ||
111 | # Setup Network Address Translation (NAT) | |
112 | setup_nat() | |
113 | { | |
114 | local src via dst | |
115 | ||
116 | if [ -r /etc/sysconfig/static-nat ]; then | |
117 | if [ "$1" = "on" ]; then | |
118 | grep "^[0-9]" /etc/sysconfig/static-nat | while read src via dst; do | |
119 | /sbin/ip route add nat $dst via $src | |
120 | /sbin/ip rule add from $src nat $dst | |
121 | done | |
122 | elif [ "$1" = "off" ]; then | |
123 | LC_ALL=C /sbin/ip route show table all | grep -E "^nat[[:blank:]]" | while read nat dst via src args; do | |
124 | /sbin/ip rule del from $src nat $dst | |
125 | /sbin/ip route del nat $dst via $src | |
126 | done | |
127 | fi | |
128 | fi | |
129 | } | |
130 | ||
131 | # Setup static ARP | |
132 | static_arp() | |
133 | { | |
134 | local rc arpdev host hwaddr flags neflags | |
135 | ||
136 | if is_yes "$STATIC_ARP" && [ -r /etc/ethers ]; then | |
137 | if [ -x /sbin/arp ]; then | |
138 | run_cmd "Setting static ARP entries" /sbin/arp -f /etc/ethers | |
139 | else | |
140 | show "Setting static ARP entries"; busy | |
141 | rc=0 | |
142 | arpdev=$(ip link show | awk -F':' '(/UP/) && ! (/NOARP/) && ! (/lo:/) && ! (/NONE:/) { print $2; exit }') | |
143 | if [ -z "$arpdev" ]; then | |
144 | rc=1 | |
145 | else | |
146 | # ip supports only ip addresses | |
147 | grep "^[0-9]" /etc/ethers | \ | |
148 | while read host hwaddr flags; do | |
149 | case "$flags" in | |
150 | *temp*) | |
151 | neflags="nud stale" | |
152 | ;; | |
153 | *) | |
154 | neflags="nud permanent" | |
155 | ;; | |
156 | esac | |
157 | if ! /sbin/ip neigh add $host lladdr $hwaddr $neflags dev $arpdev; then | |
158 | rc=1 | |
159 | fi | |
160 | done | |
161 | fi | |
162 | if [ "$rc" -gt 0 ]; then | |
163 | fail | |
164 | fi | |
165 | fi | |
166 | fi | |
167 | } | |
168 | ||
169 | static_rarp() | |
170 | { | |
171 | if is_yes "$STATIC_RARP"; then | |
172 | if [ ! -e /proc/net/rarp ]; then | |
173 | _modprobe single rarp | |
174 | fi | |
175 | if [ -r /etc/ethers -a -x /sbin/rarp ]; then | |
176 | run_cmd "Setting static RARP entries" /sbin/rarp -f /etc/ethers | |
177 | fi | |
178 | fi | |
179 | } | |
180 | ||
181 | # Set up all IP && IP parameter variables | |
182 | setup_ip_param () | |
183 | { | |
184 | # detect network device type (ie. dummy, eth for dummy0, eth0 ..) | |
185 | if [ -z "$DEVICETYPE" ]; then | |
186 | DEVICETYPE=$(echo $DEVICE | awk ' { gsub(/[\.:]?[0-9]*[\.:]?[0-9]*$/,NUL); print $0 } ') | |
187 | fi | |
188 | ||
189 | # Setup DEVICETYPE for special cases. | |
190 | if echo ${DEVICE} | LC_ALL=C grep -qE '^[a-z0-9]+\.[0-9]+$'; then | |
191 | DEVICETYPE=vlan | |
192 | fi | |
193 | ||
194 | # real name of device (ie. is eth0 for eth0,eth0:1,eth0:alias) | |
195 | SUBDEVICE=$(echo "$DEVICE" | grep -E "([0-9]+:[0-9]+)") | |
196 | DEVICE=$(echo $DEVICE | awk ' { gsub(/:.*$/,NUL); print $0 } ') | |
197 | ||
198 | eval IP4ADDR="\$IPADDR${IP4_PRIM_IF:-}" | |
199 | # check if ipaddr doesn't contain network length -- use $NETMASK then | |
200 | if [[ "$IP4ADDR" != */* ]] && [ "$NETMASK" ]; then | |
201 | IP4ADDR=$IP4ADDR/$(calcprefix $NETMASK) | |
202 | fi | |
203 | ||
204 | # check if we have ipv6 or ipv4 address | |
205 | if [[ "${IP4ADDR}" = *:* ]]; then | |
206 | IP6ADDR=${IP4ADDR} | |
207 | IP4ADDR="" | |
208 | else | |
209 | eval IP4ADDROPT="\$IP_AOPTS${IP4_PRIM_IF:-}" | |
210 | eval IP4ROUTEOPT="\$IP_ROPTS${IP4_PRIM_IF:-}" | |
211 | fi | |
212 | if [ "${IP6_PRIM_IF}" ]; then | |
213 | eval IP6ADDR="\$IPADDR${IP6_PRIM_IF:-}" | |
214 | eval IP6ADDROPT="\$IPV6_AOPTS${IP6_PRIM_IF:-}" | |
215 | eval IP6ADDRLABEL="\$IP_LABEL${IP6_PRIM_IF:-}" | |
216 | fi | |
217 | if [ "${IP4_SRC_IF}" ]; then | |
218 | eval IP4SRCADDR="\$IPADDR${IP4_SRC_IF}" | |
219 | IP4SRCADDR=$(echo ${IP4SRCADDR} | awk ' { gsub(/\/.*/,NIL); print "src " $0; } ') | |
220 | fi | |
221 | ||
222 | # new rc-scripts 0.4.x option | |
223 | if [ -z "$HANDLING" ]; then | |
224 | HANDLING=0 | |
225 | fi | |
226 | ||
227 | # set handling for bridge | |
228 | case "$DEVICETYPE" in | |
229 | br|atm|lec|irda|vlan) | |
230 | HANDLING=1 | |
231 | ;; | |
232 | esac | |
233 | ||
234 | # Multicast ready devices | |
235 | if is_yes "$MULTICAST"; then | |
236 | MULTICAST="on" | |
237 | else | |
238 | case "$DEVICETYPE" in | |
239 | eth|br) | |
240 | MULTICAST="on" | |
241 | ;; | |
242 | *) | |
243 | MULTICAST="off" | |
244 | ;; | |
245 | esac | |
246 | fi | |
247 | ||
248 | # ARP ready devices | |
249 | if [ "$ARP" ]; then | |
250 | if is_yes "$ARP"; then | |
251 | ARP="arp on" | |
252 | else | |
253 | ARP="arp off" | |
254 | fi | |
255 | fi | |
256 | } | |
257 | ||
258 | check_device_down () | |
259 | { | |
260 | if LC_ALL=C ip link show dev ${DEVICE} 2> /dev/null | grep -q UP; then | |
261 | return 1 | |
262 | else | |
263 | return 0 | |
264 | fi | |
265 | } | |
266 | ||
267 | setup_ip_gw_ro () | |
268 | { | |
269 | # IPv4 gateway | |
270 | if is_yes "$IPV4_NETWORKING"; then | |
271 | if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then | |
272 | # set up default gateway | |
273 | if [ "${GATEWAY}" ]; then | |
274 | ip -4 route add default via ${GATEWAY} dev ${DEVICE} ${IP4SRCADDR} onlink 2>/dev/null | |
275 | if [ $? = 0 ]; then | |
276 | DEFGW=${GATEWAY} | |
277 | else | |
278 | # The default gateway could be set via eth0, while bringing up eth1 we shouldn't set default gateway again. | |
279 | # To prevent this message just set GATEWAYDEV=eth0 in /etc/sysconfig/network. | |
280 | nls "Warning: Default gateway already set proably via other interface. Do you need to setup GATEWAYDEV?" | |
281 | fi | |
282 | elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then | |
283 | ip -4 route add default dev ${DEVICE} ${IP4SRCADDR} | |
284 | fi | |
285 | fi | |
286 | fi | |
287 | ||
288 | # IPv6 gateway && IPv6 globalroute | |
289 | if is_yes "$IPV6_NETWORKING"; then | |
290 | if [ -z "${GATEWAY6DEV}" -o "${GATEWAY6DEV}" = "${DEVICE}" ]; then | |
291 | # set up default gateway | |
292 | if [ "${GATEWAY6}" ]; then | |
293 | ip -6 route add default via ${GATEWAY6} dev ${DEVICE} ${IP6SRCADDR} onlink | |
294 | DEFGW6=${GATEWAY6} | |
295 | elif [ "${GATEWAY6DEV}" = "${DEVICE}" ]; then | |
296 | ip -6 route add default dev ${DEVICE} ${IP6SRCADDR} | |
297 | fi | |
298 | fi | |
299 | if [ -z "${IPV6_GLOBALROUTEDEV}" -o "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then | |
300 | # set up default route | |
301 | if [ "${IPV6_GLOBALROUTEGW}" ]; then | |
302 | ip -6 route add 2000::/3 via ${IPV6_GLOBALROUTEGW} dev ${DEVICE} ${IP6SRCADDR} onlink | |
303 | elif [ "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then | |
304 | ip -6 route add 2000::/3 dev ${DEVICE} ${IP6SRCADDR} | |
305 | fi | |
306 | fi | |
307 | fi | |
308 | } | |
309 | ||
310 | # | |
311 | # following function sets up routes not associated to any device | |
312 | # eg. unreachable or blackhole routes | |
313 | # (c) 1999 Jacek Konieczny <jajcus@pld-linux.org> | |
314 | # | |
315 | setup_routes() | |
316 | { | |
317 | local args | |
318 | ||
319 | if [ -f /etc/sysconfig/static-routes ]; then | |
320 | if [ "$1" = "on" -o "$1" = "yes" ]; then | |
321 | grep -E "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do | |
322 | /sbin/ip route add $args | |
323 | done | |
324 | else | |
325 | grep -E "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do | |
326 | /sbin/ip route del $args 2>/dev/null | |
327 | done | |
328 | fi | |
329 | fi | |
330 | is_no "$IPV6_NETWORKING" && return | |
331 | if [ -f /etc/sysconfig/static-routes6 ]; then | |
332 | if [ "$1" = "on" -o "$1" = "yes" ]; then | |
333 | grep -E "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes6 | while read device args; do | |
334 | /sbin/ip -6 route add $args | |
335 | done | |
336 | else | |
337 | grep -E "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes6 | while read device args; do | |
338 | /sbin/ip -6 route del $args 2>/dev/null | |
339 | done | |
340 | fi | |
341 | fi | |
342 | } | |
343 | ||
344 | # Add ONLY IPv4 address (IPv6 address is added automaticly) | |
345 | set_up_loopback() | |
346 | { | |
347 | if is_yes "$IPV4_NETWORKING"; then | |
348 | ip addr add 127.0.0.1/8 dev lo | |
349 | fi | |
350 | ip link set dev lo up | |
351 | grep -E "^(lo|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do | |
352 | if [[ "$args" = *:* ]]; then | |
353 | is_no "$IPV6_NETWORKING" && continue | |
354 | else | |
355 | is_no "$IPV4_NETWORKING" && continue | |
356 | fi | |
357 | /sbin/ip route add $args dev lo | |
358 | done | |
359 | is_no "$IPV6_NETWORKING" && return | |
360 | grep -E "^(lo|any)[[:blank:]]" /etc/sysconfig/static-routes6 | while read device args; do | |
361 | /sbin/ip -6 route add $args dev lo | |
362 | done | |
363 | } | |
364 | ||
365 | set_down_loopback() | |
366 | { | |
367 | LC_ALL=C ip addr flush dev lo 2>&1 | grep -v "Nothing to flush" | |
368 | ip link set dev lo down | |
369 | } | |
370 | ||
371 | modprobe_net() | |
372 | { | |
373 | if is_yes "$IPV6_NETWORKING" && is_module "ipv6"; then | |
374 | _modprobe single ipv6 | |
375 | fi | |
376 | ||
377 | if is_yes "$IPX" && is_module "ipx"; then | |
378 | _modprobe single ipx | |
379 | fi | |
380 | } | |
381 | ||
382 | # calculate network prefix from given network mask | |
383 | calcprefix() | |
384 | { | |
385 | local old_IFS netmask prefix endp | |
386 | ||
387 | old_IFS=$IFS | |
388 | IFS='.' | |
389 | netmask=$(echo $1) | |
390 | IFS=$old_IFS | |
391 | ||
392 | prefix=0 | |
393 | endp=0 | |
394 | for n in $netmask; do | |
395 | for i in 128 64 32 16 8 4 2 1; do | |
396 | if [ $(($n & $i)) -ne 0 ]; then | |
397 | if [ $endp -eq 0 ]; then | |
398 | prefix=$(($prefix + 1)) | |
399 | else | |
400 | echo "32" | |
401 | return | |
402 | fi | |
403 | else | |
404 | endp=1 | |
405 | fi | |
406 | done | |
407 | done | |
408 | echo $prefix | |
409 | } | |
410 | ||
411 | # calculate network mask from given prefix | |
412 | # (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl> | |
413 | calcnetmask() | |
414 | { | |
415 | local prefix a MASK | |
416 | ||
417 | MASK="" | |
418 | if [ "${1##[0-9]*}" ]; then | |
419 | prefix=32 | |
420 | else | |
421 | prefix=$1 | |
422 | fi | |
423 | for i in 1 2 3 4; do | |
424 | case $prefix in | |
425 | 7) a=254;; | |
426 | 6) a=252;; | |
427 | 5) a=248;; | |
428 | 4) a=240;; | |
429 | 3) a=224;; | |
430 | 2) a=192;; | |
431 | 1) a=128;; | |
432 | *) | |
433 | [ $prefix -ge 8 ] && a=255 | |
434 | [ $prefix -le 0 ] && a=0 | |
435 | ;; | |
436 | esac | |
437 | ||
438 | prefix="$(( $prefix - 8))" | |
439 | if [ -z "$MASK" ]; then | |
440 | MASK=$a | |
441 | else | |
442 | MASK=$MASK.$a | |
443 | fi | |
444 | done | |
445 | ||
446 | echo $MASK | |
447 | return | |
448 | } | |
449 | ||
450 | # Retrievies PPPD PID and real interface name from /var/run/ppp-*.pid | |
451 | get_ppp_device_and_pid () | |
452 | { | |
453 | if [ -f "/var/run/ppp-$DEVNAME.pid" ]; then | |
454 | eval $( | |
455 | { | |
456 | read PID; echo "PID='$PID'" | |
457 | read REALDEVICE; echo "REALDEVICE=$REALDEVICE" | |
458 | } < "/var/run/ppp-$DEVNAME.pid") | |
459 | fi | |
460 | ||
461 | if [ -z "$REALDEVICE" ]; then | |
462 | REALDEVICE=$DEVICE | |
463 | fi | |
464 | } | |
465 | ||
466 | # following function setups advanced routing rules | |
467 | # Olgierd Pieczul <wojrus@pld-linux.org> | |
468 | setup_ip_rules () | |
469 | { | |
470 | local args prio from src | |
471 | ||
472 | if [ -f /etc/sysconfig/static-routes ]; then | |
473 | if is_yes "$1"; then | |
474 | grep -E "^(from|to|iif|tos|fwmark|dev|pref|priority|prio)[[:blank:]]" /etc/sysconfig/static-routes | while read args; do | |
475 | /sbin/ip rule add $args | |
476 | done | |
477 | elif is_no "$1"; then | |
478 | LC_ALL=C /sbin/ip rule show | grep -vE -e "from all lookup (main|default|local) \$" -e " map-to " | while read prio from src args; do | |
479 | [ "$src" = "all" ] && /sbin/ip rule delete $args || /sbin/ip rule delete $from $src $args | |
480 | done | |
481 | fi | |
482 | fi | |
483 | is_no "$IPV6_NETWORKING" && return | |
484 | if [ -f /etc/sysconfig/static-routes6 ]; then | |
485 | if is_yes "$1"; then | |
486 | grep -E "^(from|to|iif|tos|fwmark|dev|pref|priority|prio)[[:blank:]]" /etc/sysconfig/static-routes6 | while read args; do | |
487 | /sbin/ip -6 rule add $args | |
488 | done | |
489 | elif is_no "$1"; then | |
490 | LC_ALL=C /sbin/ip -6 rule show | grep -vE -e "from all lookup (main|default|local) \$" -e " map-to " | while read prio from src args; do | |
491 | [ "$src" = "all" ] && /sbin/ip -6 rule delete $args || /sbin/ip -6 rule delete $from $src $args | |
492 | done | |
493 | fi | |
494 | fi | |
495 | } | |
496 | ||
497 | is_wireless_device () | |
498 | { | |
499 | if [ -x /sbin/iwconfig ]; then | |
500 | LC_ALL=C iwconfig "${1}" 2>&1 | grep -q "no wireless extensions" || return 0 | |
501 | fi | |
502 | return 1 | |
503 | } | |
504 | ||
505 | wireless_param() | |
506 | { | |
507 | device="$1" | |
508 | if [ "$2" = "br" ]; then | |
509 | prefix="${device}_" | |
510 | else | |
511 | prefix="" | |
512 | fi | |
513 | ||
514 | local val wlan_mode | |
515 | ||
516 | # wlan mode needs to be first | |
517 | wlan_mode="$(eval echo \$${prefix}WLAN_MODE)" && [ "$wlan_mode" ] && \ | |
518 | iwconfig ${device} mode "$wlan_mode" | |
519 | ||
520 | val="$(eval echo \$${prefix}WLAN_NICKNAME)" && [ "$val" ] && \ | |
521 | iwconfig ${device} nick "$val" | |
522 | ||
523 | val="$(eval echo \$${prefix}WLAN_NWID)" && [ "$val" ] && \ | |
524 | iwconfig ${device} nwid "$val" | |
525 | ||
526 | if [ "$wlan_mode" != "Managed" -a "$wlan_mode" != "managed" ]; then | |
527 | if val="$(eval echo \$${prefix}WLAN_FREQ)" && [ "$val" ]; then | |
528 | iwconfig ${device} freq "$val" | |
529 | elif val="$(eval echo \$${prefix}WLAN_CHANNEL)" && [ "$val" ]; then | |
530 | iwconfig ${device} channel "$val" | |
531 | fi | |
532 | fi | |
533 | ||
534 | val="$(eval echo \$${prefix}WLAN_SENS)" && [ "$val" ] && \ | |
535 | iwconfig ${device} sens "$val" | |
536 | val="$(eval echo \$${prefix}WLAN_AP)" && [ "$val" ] && \ | |
537 | iwconfig ${device} ap "$val" | |
538 | val="$(eval echo \$${prefix}WLAN_BITRATE)" && [ "$val" ] && \ | |
539 | iwconfig ${device} rate "$val" | |
540 | val="$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)" && [ "$val" ] && \ | |
541 | iwconfig ${device} rts "$val" | |
542 | val="$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)" && [ "$val" ] && \ | |
543 | iwconfig ${device} frag "$val" | |
544 | ||
545 | local wlan_encryption="$(eval echo \$${prefix}WLAN_ENCRYPTION)" | |
546 | local wlan_key="$(eval echo \$${prefix}WLAN_KEY)" | |
547 | # TODO: well, actually shouldn't set WLAN_KEY if other keys than current are set | |
548 | if [ "$wlan_key" ]; then | |
549 | # wlan key can contain index of key to set | |
550 | # to set other than current keys suffix with 1-4: | |
551 | local idx | |
552 | for idx in 1 2 3 4; do | |
553 | val="$(eval echo \$${prefix}WLAN_KEY_$idx)" | |
554 | [ "$val" ] || continue | |
555 | iwconfig ${device} key "[$idx]" "$val" | |
556 | done | |
557 | if val="$(eval echo \$${prefix}WLAN_KEY_CURRENT)" && [ "$val" ]; then | |
558 | iwconfig ${device} key "[$val]" | |
559 | else | |
560 | iwconfig ${device} key "$wlan_key" | |
561 | fi | |
562 | ||
563 | [ "$wlan_encryption" ] && iwconfig ${device} key "$wlan_encryption" | |
564 | fi | |
565 | ||
566 | if is_no "$wlan_encryption"; then | |
567 | iwconfig ${device} key off | |
568 | fi | |
569 | val="$(eval echo \$${prefix}WLAN_POWER)" && [ "$val" ] && \ | |
570 | iwconfig ${device} power "$val" | |
571 | val="$(eval echo \$${prefix}WLAN_TXPOWER)" && [ "$val" ] && \ | |
572 | iwconfig ${device} txpower "$val" | |
573 | val="$(eval echo \$${prefix}WLAN_RETRY)" && [ "$val" ] && \ | |
574 | iwconfig ${device} retry "$val" | |
575 | ||
576 | # essid should be last due to network rescanning by wlan devices | |
577 | val="$(eval echo \$${prefix}WLAN_ESSID)" && [ "$val" ] && \ | |
578 | iwconfig ${device} essid "$val" | |
579 | ||
580 | if is_yes "$(eval echo \$${prefix}WLAN_COMMIT)"; then | |
581 | iwconfig ${device} commit | |
582 | fi | |
583 | } | |
584 | ||
585 | # returns | |
586 | # 0 - no link | |
587 | # 1 - link ok | |
588 | # 2 - unsupported, unknown return | |
589 | check_mii_tool () | |
590 | { | |
591 | [ -x /sbin/mii-tool ] || return 2 | |
592 | local output=$(LC_ALL=C mii-tool $1 2>&1) | |
593 | echo $output | grep -q "link ok" && return 1 | |
594 | echo $output | grep -q "no link" && return 0 | |
595 | return 2 | |
596 | } | |
597 | ||
598 | # returns | |
599 | # 0 - link off | |
600 | # 1 - link on | |
601 | # 2 - unsupported, unknown return | |
602 | check_ethtool () | |
603 | { | |
604 | [ -x /sbin/ethtool ] || return 2 | |
605 | local output=$(LC_ALL=C ethtool $1 2>&1) | |
606 | echo $output | grep -q "Link detected: yes" && return 1 | |
607 | echo $output | grep -q "Link detected: no" && return 0 | |
608 | return 2 | |
609 | } | |
610 | ||
611 | # returns | |
612 | # 0 - radio off | |
613 | # 1 - radio on | |
614 | # 2 - unsupported | |
615 | check_iwconfig () | |
616 | { | |
617 | local output | |
618 | # rfkill state (are there devices with multiple rfkill buttons?) | |
619 | output=$(cat /sys/class/net/${1}/device/rfkill*/state 2> /dev/null) | |
620 | # 1 is rfkill not active | |
621 | [ "$output" = "1" ] && return 1 | |
622 | [ "$output" = "0" -o "$output" = "2" ] && return 0 | |
623 | [ -x /sbin/iwconfig ] || return 2 | |
624 | output=$(LC_ALL=C iwconfig "$1" 2>&1) | |
625 | # "radio off" is ipwxxx only "feature" (and there is no "radio on") | |
626 | echo "$output" | grep -q "radio off" && return 0 | |
627 | # XXX: need more generic checks for wifi | |
628 | return 2 | |
629 | } | |
630 | ||
631 | # returns | |
632 | # 0 - link down | |
633 | # 1 - link up | |
634 | # 2 - unknown/unsupported | |
635 | check_link_down () | |
636 | { | |
637 | local e i m timeout device max_timeout | |
638 | device="$1" | |
639 | max_timeout="$2" | |
640 | ||
641 | if [ ! -x /sbin/mii-tool -a ! -x /sbin/ethtool -a ! -x /sbin/iwconfig ]; then | |
642 | return 2 | |
643 | fi | |
644 | ||
645 | [ -z "$max_timeout" ] && max_timeout=6 | |
646 | ||
647 | if ! LC_ALL=C ip link show dev $device 2>/dev/null | grep -q UP; then | |
648 | ip link set dev $device up >/dev/null 2>&1 | |
649 | fi | |
650 | timeout=0 | |
651 | while [ $timeout -le $max_timeout ]; do | |
652 | check_ethtool $device | |
653 | e=$? | |
654 | check_iwconfig $device | |
655 | i=$? | |
656 | # trust ethtool and iwconfig | |
657 | if [ $i -eq 1 ] || [ $e -eq 1 ]; then | |
658 | return 1 | |
659 | fi | |
660 | # use mii check only if all other check are unsupported | |
661 | # (mii check lies too often) | |
662 | check_mii_tool $device | |
663 | m=$? | |
664 | if [ $m -eq 1 ] && [ $i -eq 2 ] && [ $e -eq 2 ]; then | |
665 | return 1 | |
666 | fi | |
667 | usleep 500000 | |
668 | timeout=$((timeout+1)) | |
669 | done | |
670 | # do not abort dhclient if all the checks are unsupported | |
671 | if [ $m -eq 2 ] && [ $i -eq 2 ] && [ $e -eq 2 ]; then | |
672 | return 2 | |
673 | fi | |
674 | return 0 | |
675 | } |