* [PATCH V2 0/2] dhcp-client: fix invoke dhclient-script failed on Read-only file system
@ 2013-12-03 13:46 Hongxu Jia
2013-12-03 13:46 ` [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry Hongxu Jia
2013-12-03 13:46 ` [PATCH 2/2] dhclient-script: override make_resolv_conf for read-only fs Hongxu Jia
0 siblings, 2 replies; 7+ messages in thread
From: Hongxu Jia @ 2013-12-03 13:46 UTC (permalink / raw)
To: openembedded-core; +Cc: saul.wold
Change in V2:
* we should *never* check IMAGE_FEATURES in individual recipes.
Two reasons:
1) It may cause unnecessary rebuilds.
2) IMAGE_FEATURES may be set in <image>.bb instead of local.conf.
* The make_resolv_conf function in that script doesn't take into
consideration the situation in which /etc/resolv.conf is a symlink
to /var/run/resolv.conf.
The following changes since commit a17ffbdbb7d142a94ef842a32b749b18e2e7f0a1:
bitbake: hob: fix rotating progress icon animation (2013-12-02 17:51:35 +0000)
are available in the git repository at:
git://git.pokylinux.org/poky-contrib hongxu/fix-dhcpclient
http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=hongxu/fix-dhcpclient
Hongxu Jia (2):
dhclient-script: let resolv.conf and resolv.conf.dhclient on the same
direcotry
dhclient-script: override make_resolv_conf for read-only fs
meta/recipes-connectivity/dhcp/dhcp.inc | 7 +-
...ript-let-resolv.conf-and-resolv.conf.dhcl.patch | 74 ++++++++++++++++++++++
.../dhcp/files/readonly-dhclient-enter-hooks | 31 +++++++++
3 files changed, 111 insertions(+), 1 deletion(-)
create mode 100644 meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch
create mode 100644 meta/recipes-connectivity/dhcp/files/readonly-dhclient-enter-hooks
--
1.8.1.2
^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry 2013-12-03 13:46 [PATCH V2 0/2] dhcp-client: fix invoke dhclient-script failed on Read-only file system Hongxu Jia @ 2013-12-03 13:46 ` Hongxu Jia 2013-12-03 22:09 ` Phil Blundell 2013-12-10 4:41 ` Saul Wold 2013-12-03 13:46 ` [PATCH 2/2] dhclient-script: override make_resolv_conf for read-only fs Hongxu Jia 1 sibling, 2 replies; 7+ messages in thread From: Hongxu Jia @ 2013-12-03 13:46 UTC (permalink / raw) To: openembedded-core; +Cc: saul.wold Even though '/etc' is on the readonly partition, it's possible that /etc/resolv.conf is on a separate writable partition. In this situation, we should make sure the temp file resolv.conf.dhclient on the same direcotry. [YOCTO #5624] Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> --- meta/recipes-connectivity/dhcp/dhcp.inc | 1 + ...ript-let-resolv.conf-and-resolv.conf.dhcl.patch | 74 ++++++++++++++++++++++ 2 files changed, 75 insertions(+) create mode 100644 meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch diff --git a/meta/recipes-connectivity/dhcp/dhcp.inc b/meta/recipes-connectivity/dhcp/dhcp.inc index ad82b57..d8376aa 100644 --- a/meta/recipes-connectivity/dhcp/dhcp.inc +++ b/meta/recipes-connectivity/dhcp/dhcp.inc @@ -16,6 +16,7 @@ SRC_URI = "ftp://ftp.isc.org/isc/dhcp/${PV}/dhcp-${PV}.tar.gz \ file://site.h \ file://init-relay file://default-relay \ file://init-server file://default-server \ + file://dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch \ file://dhclient.conf file://dhcpd.conf" inherit autotools diff --git a/meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch b/meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch new file mode 100644 index 0000000..db56f70 --- /dev/null +++ b/meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch @@ -0,0 +1,74 @@ +dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry + +Even though '/etc' is on the readonly partition, it's possible that +/etc/resolv.conf is on a separate writable partition. + +In this situation, we should make sure the temp file resolv.conf.dhclient +on the same direcotry. + +Upstream-Status: Pending +Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> +--- + client/scripts/linux | 24 +++++++++++++----------- + 1 file changed, 13 insertions(+), 11 deletions(-) + +diff --git a/client/scripts/linux b/client/scripts/linux +index 6f8ea4b..fbc6324 100755 +--- a/client/scripts/linux ++++ b/client/scripts/linux +@@ -27,27 +27,29 @@ ip=/sbin/ip + + make_resolv_conf() { + if [ x"$new_domain_name_servers" != x ]; then +- cat /dev/null > /etc/resolv.conf.dhclient +- chmod 644 /etc/resolv.conf.dhclient ++ sysconfdir=`dirname $(readlink -f '/etc/resolv.conf')` ++ cat /dev/null > $sysconfdir/resolv.conf.dhclient ++ chmod 644 $sysconfdir/resolv.conf.dhclient + if [ x"$new_domain_search" != x ]; then +- echo search $new_domain_search >> /etc/resolv.conf.dhclient ++ echo search $new_domain_search >> $sysconfdir/esolv.conf.dhclient + elif [ x"$new_domain_name" != x ]; then + # Note that the DHCP 'Domain Name Option' is really just a domain + # name, and that this practice of using the domain name option as + # a search path is both nonstandard and deprecated. +- echo search $new_domain_name >> /etc/resolv.conf.dhclient ++ echo search $new_domain_name >> $sysconfdir/resolv.conf.dhclient + fi + for nameserver in $new_domain_name_servers; do +- echo nameserver $nameserver >>/etc/resolv.conf.dhclient ++ echo nameserver $nameserver >>$sysconfdir/resolv.conf.dhclient + done + +- mv /etc/resolv.conf.dhclient /etc/resolv.conf ++ mv $sysconfdir/resolv.conf.dhclient $sysconfdir/resolv.conf + elif [ "x${new_dhcp6_name_servers}" != x ] ; then +- cat /dev/null > /etc/resolv.conf.dhclient6 +- chmod 644 /etc/resolv.conf.dhclient6 ++ sysconfdir=`dirname $(readlink -f '/etc/resolv.conf')` ++ cat /dev/null > $sysconfdir/resolv.conf.dhclient6 ++ chmod 644 $sysconfdir/resolv.conf.dhclient6 + + if [ "x${new_dhcp6_domain_search}" != x ] ; then +- echo search ${new_dhcp6_domain_search} >> /etc/resolv.conf.dhclient6 ++ echo search ${new_dhcp6_domain_search} >> $sysconfdir/resolv.conf.dhclient6 + fi + shopt -s nocasematch + for nameserver in ${new_dhcp6_name_servers} ; do +@@ -59,11 +61,11 @@ make_resolv_conf() { + else + zone_id= + fi +- echo nameserver ${nameserver}$zone_id >> /etc/resolv.conf.dhclient6 ++ echo nameserver ${nameserver}$zone_id >> $sysconfdir/resolv.conf.dhclient6 + done + shopt -u nocasematch + +- mv /etc/resolv.conf.dhclient6 /etc/resolv.conf ++ mv $sysconfdir/resolv.conf.dhclient6 $sysconfdir/resolv.conf + fi + } + +-- +1.7.9.5 + -- 1.8.1.2 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry 2013-12-03 13:46 ` [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry Hongxu Jia @ 2013-12-03 22:09 ` Phil Blundell 2013-12-04 2:00 ` Hongxu Jia 2013-12-10 4:41 ` Saul Wold 1 sibling, 1 reply; 7+ messages in thread From: Phil Blundell @ 2013-12-03 22:09 UTC (permalink / raw) To: Hongxu Jia; +Cc: saul.wold, openembedded-core On Tue, 2013-12-03 at 21:46 +0800, Hongxu Jia wrote: > +- echo search $new_domain_search >> /etc/resolv.conf.dhclient > ++ echo search $new_domain_search >> $sysconfdir/esolv.conf.dhclient Should that be "$sysconfdir/resolv.conf.dhclient"? p. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry 2013-12-03 22:09 ` Phil Blundell @ 2013-12-04 2:00 ` Hongxu Jia 0 siblings, 0 replies; 7+ messages in thread From: Hongxu Jia @ 2013-12-04 2:00 UTC (permalink / raw) To: Phil Blundell; +Cc: saul.wold, openembedded-core On 12/04/2013 06:09 AM, Phil Blundell wrote: > On Tue, 2013-12-03 at 21:46 +0800, Hongxu Jia wrote: >> +- echo search $new_domain_search >> /etc/resolv.conf.dhclient >> ++ echo search $new_domain_search >> $sysconfdir/esolv.conf.dhclient > Should that be "$sysconfdir/resolv.conf.dhclient"? Yes, sorry for the missing, I have updated the git tree to fix this. //Hongxu > p. > > ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry 2013-12-03 13:46 ` [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry Hongxu Jia 2013-12-03 22:09 ` Phil Blundell @ 2013-12-10 4:41 ` Saul Wold 2013-12-10 10:25 ` Hongxu Jia 1 sibling, 1 reply; 7+ messages in thread From: Saul Wold @ 2013-12-10 4:41 UTC (permalink / raw) To: Hongxu Jia, openembedded-core On 12/03/2013 05:46 AM, Hongxu Jia wrote: > Even though '/etc' is on the readonly partition, it's possible that > /etc/resolv.conf is on a separate writable partition. > > In this situation, we should make sure the temp file resolv.conf.dhclient > on the same direcotry. > > [YOCTO #5624] > > Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> > --- > meta/recipes-connectivity/dhcp/dhcp.inc | 1 + > ...ript-let-resolv.conf-and-resolv.conf.dhcl.patch | 74 ++++++++++++++++++++++ These new scripts are doing alot of out calling from the shell script, and can cause additional fork/execs during the critical path of system startup, is there any way to reduce this? Sau! > 2 files changed, 75 insertions(+) > create mode 100644 meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch > > diff --git a/meta/recipes-connectivity/dhcp/dhcp.inc b/meta/recipes-connectivity/dhcp/dhcp.inc > index ad82b57..d8376aa 100644 > --- a/meta/recipes-connectivity/dhcp/dhcp.inc > +++ b/meta/recipes-connectivity/dhcp/dhcp.inc > @@ -16,6 +16,7 @@ SRC_URI = "ftp://ftp.isc.org/isc/dhcp/${PV}/dhcp-${PV}.tar.gz \ > file://site.h \ > file://init-relay file://default-relay \ > file://init-server file://default-server \ > + file://dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch \ > file://dhclient.conf file://dhcpd.conf" > > inherit autotools > diff --git a/meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch b/meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch > new file mode 100644 > index 0000000..db56f70 > --- /dev/null > +++ b/meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch > @@ -0,0 +1,74 @@ > +dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry > + > +Even though '/etc' is on the readonly partition, it's possible that > +/etc/resolv.conf is on a separate writable partition. > + > +In this situation, we should make sure the temp file resolv.conf.dhclient > +on the same direcotry. > + > +Upstream-Status: Pending > +Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> > +--- > + client/scripts/linux | 24 +++++++++++++----------- > + 1 file changed, 13 insertions(+), 11 deletions(-) > + > +diff --git a/client/scripts/linux b/client/scripts/linux > +index 6f8ea4b..fbc6324 100755 > +--- a/client/scripts/linux > ++++ b/client/scripts/linux > +@@ -27,27 +27,29 @@ ip=/sbin/ip > + > + make_resolv_conf() { > + if [ x"$new_domain_name_servers" != x ]; then > +- cat /dev/null > /etc/resolv.conf.dhclient > +- chmod 644 /etc/resolv.conf.dhclient > ++ sysconfdir=`dirname $(readlink -f '/etc/resolv.conf')` > ++ cat /dev/null > $sysconfdir/resolv.conf.dhclient > ++ chmod 644 $sysconfdir/resolv.conf.dhclient > + if [ x"$new_domain_search" != x ]; then > +- echo search $new_domain_search >> /etc/resolv.conf.dhclient > ++ echo search $new_domain_search >> $sysconfdir/esolv.conf.dhclient > + elif [ x"$new_domain_name" != x ]; then > + # Note that the DHCP 'Domain Name Option' is really just a domain > + # name, and that this practice of using the domain name option as > + # a search path is both nonstandard and deprecated. > +- echo search $new_domain_name >> /etc/resolv.conf.dhclient > ++ echo search $new_domain_name >> $sysconfdir/resolv.conf.dhclient > + fi > + for nameserver in $new_domain_name_servers; do > +- echo nameserver $nameserver >>/etc/resolv.conf.dhclient > ++ echo nameserver $nameserver >>$sysconfdir/resolv.conf.dhclient > + done > + > +- mv /etc/resolv.conf.dhclient /etc/resolv.conf > ++ mv $sysconfdir/resolv.conf.dhclient $sysconfdir/resolv.conf > + elif [ "x${new_dhcp6_name_servers}" != x ] ; then > +- cat /dev/null > /etc/resolv.conf.dhclient6 > +- chmod 644 /etc/resolv.conf.dhclient6 > ++ sysconfdir=`dirname $(readlink -f '/etc/resolv.conf')` > ++ cat /dev/null > $sysconfdir/resolv.conf.dhclient6 > ++ chmod 644 $sysconfdir/resolv.conf.dhclient6 > + > + if [ "x${new_dhcp6_domain_search}" != x ] ; then > +- echo search ${new_dhcp6_domain_search} >> /etc/resolv.conf.dhclient6 > ++ echo search ${new_dhcp6_domain_search} >> $sysconfdir/resolv.conf.dhclient6 > + fi > + shopt -s nocasematch > + for nameserver in ${new_dhcp6_name_servers} ; do > +@@ -59,11 +61,11 @@ make_resolv_conf() { > + else > + zone_id= > + fi > +- echo nameserver ${nameserver}$zone_id >> /etc/resolv.conf.dhclient6 > ++ echo nameserver ${nameserver}$zone_id >> $sysconfdir/resolv.conf.dhclient6 > + done > + shopt -u nocasematch > + > +- mv /etc/resolv.conf.dhclient6 /etc/resolv.conf > ++ mv $sysconfdir/resolv.conf.dhclient6 $sysconfdir/resolv.conf > + fi > + } > + > +-- > +1.7.9.5 > + > ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry 2013-12-10 4:41 ` Saul Wold @ 2013-12-10 10:25 ` Hongxu Jia 0 siblings, 0 replies; 7+ messages in thread From: Hongxu Jia @ 2013-12-10 10:25 UTC (permalink / raw) To: Saul Wold, openembedded-core On 12/10/2013 12:41 PM, Saul Wold wrote: > On 12/03/2013 05:46 AM, Hongxu Jia wrote: >> Even though '/etc' is on the readonly partition, it's possible that >> /etc/resolv.conf is on a separate writable partition. >> >> In this situation, we should make sure the temp file >> resolv.conf.dhclient >> on the same direcotry. >> >> [YOCTO #5624] >> >> Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> >> --- >> meta/recipes-connectivity/dhcp/dhcp.inc | 1 + >> ...ript-let-resolv.conf-and-resolv.conf.dhcl.patch | 74 >> ++++++++++++++++++++++ > > These new scripts are doing alot of out calling from the shell script, > and can cause additional fork/execs during the critical path of system > startup, is there any way to reduce this? > Do you mean the new script :readonly-dhclient-enter-hooks ? If yes, we could just drop the [PATCH 2/2] patch and it could work while read-only is enabled; Because /etc/resolv.conf is a symlink to /var/run/ resolv.conf in oe-core, and it's always writable: #ls /etc/resolv.conf -al lrwxrwxrwx 1 root root 29 Oct 22 2012 /etc/resolv.conf -> /var/run/resolv.conf //Hongxu > Sau! > >> 2 files changed, 75 insertions(+) >> create mode 100644 >> meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch >> >> diff --git a/meta/recipes-connectivity/dhcp/dhcp.inc >> b/meta/recipes-connectivity/dhcp/dhcp.inc >> index ad82b57..d8376aa 100644 >> --- a/meta/recipes-connectivity/dhcp/dhcp.inc >> +++ b/meta/recipes-connectivity/dhcp/dhcp.inc >> @@ -16,6 +16,7 @@ SRC_URI = >> "ftp://ftp.isc.org/isc/dhcp/${PV}/dhcp-${PV}.tar.gz \ >> file://site.h \ >> file://init-relay file://default-relay \ >> file://init-server file://default-server \ >> + file://dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch \ >> file://dhclient.conf file://dhcpd.conf" >> >> inherit autotools >> diff --git >> a/meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch >> b/meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch >> >> new file mode 100644 >> index 0000000..db56f70 >> --- /dev/null >> +++ >> b/meta/recipes-connectivity/dhcp/dhcp/dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch >> @@ -0,0 +1,74 @@ >> +dhclient-script: let resolv.conf and resolv.conf.dhclient on the >> same direcotry >> + >> +Even though '/etc' is on the readonly partition, it's possible that >> +/etc/resolv.conf is on a separate writable partition. >> + >> +In this situation, we should make sure the temp file >> resolv.conf.dhclient >> +on the same direcotry. >> + >> +Upstream-Status: Pending >> +Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> >> +--- >> + client/scripts/linux | 24 +++++++++++++----------- >> + 1 file changed, 13 insertions(+), 11 deletions(-) >> + >> +diff --git a/client/scripts/linux b/client/scripts/linux >> +index 6f8ea4b..fbc6324 100755 >> +--- a/client/scripts/linux >> ++++ b/client/scripts/linux >> +@@ -27,27 +27,29 @@ ip=/sbin/ip >> + >> + make_resolv_conf() { >> + if [ x"$new_domain_name_servers" != x ]; then >> +- cat /dev/null > /etc/resolv.conf.dhclient >> +- chmod 644 /etc/resolv.conf.dhclient >> ++ sysconfdir=`dirname $(readlink -f '/etc/resolv.conf')` >> ++ cat /dev/null > $sysconfdir/resolv.conf.dhclient >> ++ chmod 644 $sysconfdir/resolv.conf.dhclient >> + if [ x"$new_domain_search" != x ]; then >> +- echo search $new_domain_search >> /etc/resolv.conf.dhclient >> ++ echo search $new_domain_search >> >> $sysconfdir/esolv.conf.dhclient >> + elif [ x"$new_domain_name" != x ]; then >> + # Note that the DHCP 'Domain Name Option' is really just a >> domain >> + # name, and that this practice of using the domain name >> option as >> + # a search path is both nonstandard and deprecated. >> +- echo search $new_domain_name >> /etc/resolv.conf.dhclient >> ++ echo search $new_domain_name >> $sysconfdir/resolv.conf.dhclient >> + fi >> + for nameserver in $new_domain_name_servers; do >> +- echo nameserver $nameserver >>/etc/resolv.conf.dhclient >> ++ echo nameserver $nameserver >>$sysconfdir/resolv.conf.dhclient >> + done >> + >> +- mv /etc/resolv.conf.dhclient /etc/resolv.conf >> ++ mv $sysconfdir/resolv.conf.dhclient $sysconfdir/resolv.conf >> + elif [ "x${new_dhcp6_name_servers}" != x ] ; then >> +- cat /dev/null > /etc/resolv.conf.dhclient6 >> +- chmod 644 /etc/resolv.conf.dhclient6 >> ++ sysconfdir=`dirname $(readlink -f '/etc/resolv.conf')` >> ++ cat /dev/null > $sysconfdir/resolv.conf.dhclient6 >> ++ chmod 644 $sysconfdir/resolv.conf.dhclient6 >> + >> + if [ "x${new_dhcp6_domain_search}" != x ] ; then >> +- echo search ${new_dhcp6_domain_search} >> >> /etc/resolv.conf.dhclient6 >> ++ echo search ${new_dhcp6_domain_search} >> >> $sysconfdir/resolv.conf.dhclient6 >> + fi >> + shopt -s nocasematch >> + for nameserver in ${new_dhcp6_name_servers} ; do >> +@@ -59,11 +61,11 @@ make_resolv_conf() { >> + else >> + zone_id= >> + fi >> +- echo nameserver ${nameserver}$zone_id >> >> /etc/resolv.conf.dhclient6 >> ++ echo nameserver ${nameserver}$zone_id >> >> $sysconfdir/resolv.conf.dhclient6 >> + done >> + shopt -u nocasematch >> + >> +- mv /etc/resolv.conf.dhclient6 /etc/resolv.conf >> ++ mv $sysconfdir/resolv.conf.dhclient6 $sysconfdir/resolv.conf >> + fi >> + } >> + >> +-- >> +1.7.9.5 >> + >> > ^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 2/2] dhclient-script: override make_resolv_conf for read-only fs 2013-12-03 13:46 [PATCH V2 0/2] dhcp-client: fix invoke dhclient-script failed on Read-only file system Hongxu Jia 2013-12-03 13:46 ` [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry Hongxu Jia @ 2013-12-03 13:46 ` Hongxu Jia 1 sibling, 0 replies; 7+ messages in thread From: Hongxu Jia @ 2013-12-03 13:46 UTC (permalink / raw) To: openembedded-core; +Cc: saul.wold When dhclient-script starts, the client script first defines a shell function, make_resolv_conf , which is later used to create the /etc/resolv.conf file. But the read-only filesystem didn't permit the modification, so override the default behaviour and redefine this function in the enter hook script. http://linux.about.com/library/cmd/blcmdl8_dhclient-script.htm [YOCTO #5624] Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> --- meta/recipes-connectivity/dhcp/dhcp.inc | 6 ++++- .../dhcp/files/readonly-dhclient-enter-hooks | 31 ++++++++++++++++++++++ 2 files changed, 36 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-connectivity/dhcp/files/readonly-dhclient-enter-hooks diff --git a/meta/recipes-connectivity/dhcp/dhcp.inc b/meta/recipes-connectivity/dhcp/dhcp.inc index d8376aa..58715be 100644 --- a/meta/recipes-connectivity/dhcp/dhcp.inc +++ b/meta/recipes-connectivity/dhcp/dhcp.inc @@ -16,6 +16,7 @@ SRC_URI = "ftp://ftp.isc.org/isc/dhcp/${PV}/dhcp-${PV}.tar.gz \ file://site.h \ file://init-relay file://default-relay \ file://init-server file://default-server \ + file://readonly-dhclient-enter-hooks \ file://dhclient-script-let-resolv.conf-and-resolv.conf.dhcl.patch \ file://dhclient.conf file://dhcpd.conf" @@ -52,6 +53,7 @@ do_install_append () { mv ${D}${sbindir}/dhclient ${D}${base_sbindir}/ fi install -m 0755 ${S}/client/scripts/linux ${D}${base_sbindir}/dhclient-script + install -m 0755 ${WORKDIR}/readonly-dhclient-enter-hooks ${D}${sysconfdir}/dhclient-enter-hooks } PACKAGES += "dhcp-server dhcp-server-config dhcp-client dhcp-relay dhcp-omshell" @@ -67,7 +69,9 @@ FILES_dhcp-server-config = "${sysconfdir}/default/dhcp-server ${sysconfdir}/dhcp FILES_dhcp-relay = "${sbindir}/dhcrelay ${sysconfdir}/init.d/dhcp-relay ${sysconfdir}/default/dhcp-relay" -FILES_dhcp-client = "${base_sbindir}/dhclient ${base_sbindir}/dhclient-script ${sysconfdir}/dhcp/dhclient.conf" +FILES_dhcp-client = "${base_sbindir}/dhclient ${base_sbindir}/dhclient-script ${sysconfdir}/dhcp/dhclient.conf \ + ${sysconfdir}/dhclient-enter-hooks \ +" RDEPENDS_dhcp-client = "bash" FILES_dhcp-omshell = "${bindir}/omshell" diff --git a/meta/recipes-connectivity/dhcp/files/readonly-dhclient-enter-hooks b/meta/recipes-connectivity/dhcp/files/readonly-dhclient-enter-hooks new file mode 100644 index 0000000..c43e81f --- /dev/null +++ b/meta/recipes-connectivity/dhcp/files/readonly-dhclient-enter-hooks @@ -0,0 +1,31 @@ +is_on_read_only_partition () { + FILE=$1 + dir=`dirname $(readlink -f "$FILE")` + while true; do + if [ ! -d "$dir" ]; then + echo "ERROR: $dir is not a directory" + exit 1 + else + for flag in `awk -v dir=$dir '{ if ($2 == dir) { print "FOUND"; split($4,FLAGS,",") } }; \ + END { for (f in FLAGS) print FLAGS[f] }' < /proc/mounts`; do + [ "$flag" = "FOUND" ] && partition="read-write" + [ "$flag" = "ro" ] && { partition="read-only"; break; } + done + if [ "$dir" = "/" -o -n "$partition" ]; then + break + else + dir=`dirname $dir` + fi + fi + done + [ "$partition" = "read-only" ] && echo "yes" || echo "no" +} + +# If resolv.conf on the readonly partition, we should override make_resolv_conf +if [ `is_on_read_only_partition /etc/resolv.conf` = "no" ]; then + return +fi + +make_resolv_conf(){ + : +} -- 1.8.1.2 ^ permalink raw reply related [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-12-10 10:25 UTC | newest] Thread overview: 7+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-12-03 13:46 [PATCH V2 0/2] dhcp-client: fix invoke dhclient-script failed on Read-only file system Hongxu Jia 2013-12-03 13:46 ` [PATCH 1/2] dhclient-script: let resolv.conf and resolv.conf.dhclient on the same direcotry Hongxu Jia 2013-12-03 22:09 ` Phil Blundell 2013-12-04 2:00 ` Hongxu Jia 2013-12-10 4:41 ` Saul Wold 2013-12-10 10:25 ` Hongxu Jia 2013-12-03 13:46 ` [PATCH 2/2] dhclient-script: override make_resolv_conf for read-only fs Hongxu Jia
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.