mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-10 15:47:11 +02:00
make dnsmasq probe for dhcp servers before starting a dhcp server
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@1110 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
mbm
parent
c9c732afbf
commit
b544d69e19
89
openwrt/package/busybox/patches/150-udhcp-release.patch
Normal file
89
openwrt/package/busybox/patches/150-udhcp-release.patch
Normal file
@ -0,0 +1,89 @@
|
||||
diff -Nurb busybox-1.00/include/usage.h busybox-1.00-patched/include/usage.h
|
||||
--- busybox-1.00/include/usage.h 2005-05-30 05:34:45.397776704 -0400
|
||||
+++ busybox-1.00-patched/include/usage.h 2005-05-30 05:04:29.271869808 -0400
|
||||
@@ -2629,6 +2629,7 @@
|
||||
"\t-n,\t--now\tExit with failure if lease cannot be immediately negotiated.\n" \
|
||||
"\t-p,\t--pidfile=file\tStore process ID of daemon in file\n" \
|
||||
"\t-q,\t--quit\tQuit after obtaining lease\n" \
|
||||
+ "\t-R\t--release\tRelease IP on quit\n" \
|
||||
"\t-r,\t--request=IP\tIP address to request (default: none)\n" \
|
||||
"\t-s,\t--script=file\tRun file at dhcp events (default: /usr/share/udhcpc/default.script)\n" \
|
||||
"\t-v,\t--version\tDisplay version"
|
||||
diff -Nurb busybox-1.00/networking/udhcp/dhcpc.c busybox-1.00-patched/networking/udhcp/dhcpc.c
|
||||
--- busybox-1.00/networking/udhcp/dhcpc.c 2004-05-19 04:29:05.000000000 -0400
|
||||
+++ busybox-1.00-patched/networking/udhcp/dhcpc.c 2005-05-30 05:00:47.377602864 -0400
|
||||
@@ -61,6 +61,7 @@
|
||||
abort_if_no_lease: 0,
|
||||
foreground: 0,
|
||||
quit_after_lease: 0,
|
||||
+ release_on_quit: 0,
|
||||
background_if_no_lease: 0,
|
||||
interface: "eth0",
|
||||
pidfile: NULL,
|
||||
@@ -87,6 +88,7 @@
|
||||
" immediately negotiated.\n"
|
||||
" -p, --pidfile=file Store process ID of daemon in file\n"
|
||||
" -q, --quit Quit after obtaining lease\n"
|
||||
+" -R, --release Release IP on quit\n"
|
||||
" -r, --request=IP IP address to request (default: none)\n"
|
||||
" -s, --script=file Run file at dhcp events (default:\n"
|
||||
" " DEFAULT_SCRIPT ")\n"
|
||||
@@ -202,6 +204,7 @@
|
||||
{"now", no_argument, 0, 'n'},
|
||||
{"pidfile", required_argument, 0, 'p'},
|
||||
{"quit", no_argument, 0, 'q'},
|
||||
+ {"release", no_argument, 0, 'R'},
|
||||
{"request", required_argument, 0, 'r'},
|
||||
{"script", required_argument, 0, 's'},
|
||||
{"version", no_argument, 0, 'v'},
|
||||
@@ -251,6 +254,9 @@
|
||||
case 'q':
|
||||
client_config.quit_after_lease = 1;
|
||||
break;
|
||||
+ case 'R':
|
||||
+ client_config.release_on_quit = 1;
|
||||
+ break;
|
||||
case 'r':
|
||||
requested_ip = inet_addr(optarg);
|
||||
break;
|
||||
@@ -472,8 +478,11 @@
|
||||
|
||||
state = BOUND;
|
||||
change_mode(LISTEN_NONE);
|
||||
- if (client_config.quit_after_lease)
|
||||
+ if (client_config.quit_after_lease) {
|
||||
+ if (client_config.release_on_quit)
|
||||
+ perform_release();
|
||||
return 0;
|
||||
+ }
|
||||
if (!client_config.foreground)
|
||||
client_background();
|
||||
|
||||
@@ -498,12 +507,13 @@
|
||||
case SIGUSR1:
|
||||
perform_renew();
|
||||
break;
|
||||
- case SIGUSR2:
|
||||
- perform_release();
|
||||
- break;
|
||||
case SIGTERM:
|
||||
LOG(LOG_INFO, "Received SIGTERM");
|
||||
+ if (!client_config.release_on_quit)
|
||||
return 0;
|
||||
+ case SIGUSR2:
|
||||
+ perform_release();
|
||||
+ break;
|
||||
}
|
||||
} else if (retval == -1 && errno == EINTR) {
|
||||
/* a signal was caught */
|
||||
diff -Nurb busybox-1.00/networking/udhcp/dhcpc.h busybox-1.00-patched/networking/udhcp/dhcpc.h
|
||||
--- busybox-1.00/networking/udhcp/dhcpc.h 2004-01-30 18:45:12.000000000 -0500
|
||||
+++ busybox-1.00-patched/networking/udhcp/dhcpc.h 2005-05-30 04:53:58.681734080 -0400
|
||||
@@ -20,6 +20,7 @@
|
||||
struct client_config_t {
|
||||
char foreground; /* Do not fork */
|
||||
char quit_after_lease; /* Quit after obtaining lease */
|
||||
+ char release_on_quit; /* perform release on quit */
|
||||
char abort_if_no_lease; /* Abort if no lease */
|
||||
char background_if_no_lease; /* Fork to background if no lease */
|
||||
char *interface; /* The name of the interface to use */
|
||||
@ -12,7 +12,7 @@ nvram () {
|
||||
. /etc/nvram.overrides
|
||||
|
||||
# valid interface?
|
||||
if_valid () {
|
||||
if_valid () (
|
||||
ifconfig "$1" >&- 2>&- ||
|
||||
[ "${1%%[0-9]}" = "br" ] ||
|
||||
{
|
||||
@ -29,5 +29,29 @@ if_valid () {
|
||||
$DEBUG vconfig add $vif $i 2>&-
|
||||
)
|
||||
} ||
|
||||
{ debug "# missing interface '$if' ignored"; false; }
|
||||
{ debug "# missing interface '$1' ignored"; false; }
|
||||
)
|
||||
|
||||
bitcount () {
|
||||
local c=$1
|
||||
echo $((
|
||||
c=((c>> 1)&0x55555555)+(c&0x55555555),
|
||||
c=((c>> 2)&0x33333333)+(c&0x33333333),
|
||||
c=((c>> 4)&0x0f0f0f0f)+(c&0x0f0f0f0f),
|
||||
c=((c>> 8)&0x00ff00ff)+(c&0x00ff00ff),
|
||||
c=((c>>16)&0x0000ffff)+(c&0x0000ffff)
|
||||
))
|
||||
}
|
||||
|
||||
valid_netmask () {
|
||||
return $((-($1)&~$1))
|
||||
}
|
||||
|
||||
ip2int () (
|
||||
set $(echo $1 | tr '\.' ' ')
|
||||
echo $(($1<<24|$2<<16|$3<<8|$4))
|
||||
)
|
||||
|
||||
int2ip () {
|
||||
echo $(($1>>24&255)).$(($1>>16&255)).$(($1>>8&255)).$(($1&255))
|
||||
}
|
||||
|
||||
@ -1,2 +1,25 @@
|
||||
#!/bin/sh
|
||||
/usr/sbin/dnsmasq
|
||||
. /etc/functions.sh
|
||||
|
||||
# interface to use for DHCP
|
||||
iface=lan
|
||||
|
||||
ifname=$(nvram get ${iface}_ifname)
|
||||
ipaddr=$(nvram get ${iface}_ipaddr)
|
||||
netmask=$(nvram get ${iface}_netmask)
|
||||
|
||||
# check for existing DHCP server
|
||||
udhcpc -n -q -R -s /dev/zero -i $ifname >&- || {
|
||||
|
||||
ipaddr=$(ip2int $ipaddr)
|
||||
netmask=$(ip2int ${netmask:-255.255.255.0})
|
||||
network=$((ipaddr&netmask))
|
||||
|
||||
start=$(nvram get dhcp_start)
|
||||
start=$((network+${start:-100}))
|
||||
end=$(nvram get dhcp_num)
|
||||
end=$((start+${end:-150}))
|
||||
|
||||
args="-K -F $(int2ip $start),$(int2ip $end),$(int2ip $netmask),12h"
|
||||
}
|
||||
/usr/sbin/dnsmasq ${args}
|
||||
|
||||
@ -10,6 +10,7 @@
|
||||
|
||||
if_valid $if || return
|
||||
|
||||
mac=$(nvram get ${type}_hwaddr)
|
||||
$DEBUG ifconfig $if down 2>&-
|
||||
if [ "${if%%[0-9]}" = "br" ]; then
|
||||
stp=$(nvram get ${type}_stp)
|
||||
@ -19,13 +20,14 @@
|
||||
$DEBUG brctl stp $if ${stp:-0}
|
||||
for sif in $(nvram get ${type}_ifnames); do {
|
||||
if_valid $sif || continue
|
||||
${mac:+$DEBUG ifconfig $sif down hw ether $mac}
|
||||
$DEBUG ifconfig $sif 0.0.0.0 up
|
||||
$DEBUG brctl addif $if $sif
|
||||
} done
|
||||
else
|
||||
${mac:+$DEBUG ifconfig $if down hw ether $mac}
|
||||
fi
|
||||
|
||||
mac=$(nvram get ${type}_hwaddr)
|
||||
${mac:+$DEBUG ifconfig $if hw ether $mac}
|
||||
|
||||
if_proto=$(nvram get ${type}_proto)
|
||||
case "$if_proto" in
|
||||
@ -50,7 +52,7 @@
|
||||
if [ -f $pidfile ]; then
|
||||
$DEBUG kill $(cat $pidfile)
|
||||
fi
|
||||
${DEBUG:-eval} "udhcpc -i $if ${ip:+-r $ip} -b -p $pidfile &"
|
||||
${DEBUG:-eval} "udhcpc -R -i $if ${ip:+-r $ip} -b -p $pidfile &"
|
||||
;;
|
||||
none|"")
|
||||
# pppoe is handled by /etc/init.d/S50pppoe
|
||||
|
||||
Loading…
Reference in New Issue
Block a user