Re: [systemd-devel] controlling serial console using a token
On Mon, Apr 20, 2015 at 7:15 AM, Praveen kumar R praveenrgo...@gmail.com wrote: You mean in the getty-generator.c ? I actually mean your own customer generator. On Mon, Apr 20, 2015 at 9:14 AM, Andrei Borzenkov arvidj...@gmail.com wrote: В Mon, 20 Apr 2015 09:09:09 +0530 Praveen kumar R praveenrgo...@gmail.com пишет: This is the snippet of the code in the systemV init system that controls the serial console login depending on the token TOKENEXIST=`grep TOKEN= /proc/cmdline` TOKEN=0 if [ X$TOKENEXIST != X ]; then #If token is pass as a command line arg, use it. TOKEN=`sed 's/.*TOKEN=//; s/ .*//' /proc/cmdline` fi TOKENOVERRIDE=`grep TOKENOVERRIDE= /proc/cmdline` if [ X$TOKENOVERRIDE != X ]; then #If token is pass as a command line arg, use it. OVERRIDE=`sed 's/.*TOKENOVERRIDE=//; s/ .*//' /proc/cmdline` let TOKEN = $TOKEN $OVERRIDE fi echo TOKEN = $TOKEN let CONSOLE_LOGIN = $TOKEN 512 if [ $CONSOLE_LOGIN -ne 0 ]; then echo [`eval $uptime`]: Begin Console Access /etc/console_login echo eCM console is enabled export ENABLE_ECM_CONSOLE=y else echo [`eval $uptime`]: Token doesn't allow console access export ENABLE_ECM_CONSOLE=n fi I am trying to implement the same in the sytemd init system. The straightforward approach is to put this code in generator that parses command line. It can mask standard console service and create unit for your console. On Sun, Apr 19, 2015 at 11:48 AM, Andrei Borzenkov arvidj...@gmail.com wrote: В Sat, 18 Apr 2015 19:54:50 +0530 Praveen kumar R praveenrgo...@gmail.com пишет: Yes it's a kernel command line arg, it is board specific token introduced to control the serial console. if defined serial console should not be enabled. Sorry I do not understand this sentence. define what? Please give exact example of kernel command line and explain what behavior you expect in this case. we have this in place for other system initializing system - sytemV , where depending On Fri, Apr 17, 2015 at 4:24 PM, Lennart Poettering lenn...@poettering.net javascript:_e(%7B%7D,'cvml','lenn...@poettering.net'); wrote: On Fri, 17.04.15 15:54, Praveen kumar R (praveenrgo...@gmail.com javascript:_e(%7B%7D,'cvml','praveenrgo...@gmail.com');) wrote: I have a token passed on by command line argument on which I need to decide to start the serial On which command line? Kernel command line? What kind of token? console or not. I plan to tweak the getty*ttyS0.service and add the script which validates the token and starts the console. Is this the right approach or is there any better way of handling it ?? To get a login getty on the serial port its sufficient to add console=ttyS0... to the kernel cmdline. systemd automatically starts a serial getty automatically on the first terminal the kernel console is pointing to. Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] controlling serial console using a token
On Mon, 20.04.15 13:06, Andrei Borzenkov (arvidj...@gmail.com) wrote: On Mon, Apr 20, 2015 at 7:15 AM, Praveen kumar R praveenrgo...@gmail.com wrote: You mean in the getty-generator.c ? I actually mean your own customer generator. For details see: https://wiki.freedesktop.org/www/Software/systemd/Generators/ Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] controlling serial console using a token
В Sat, 18 Apr 2015 19:54:50 +0530 Praveen kumar R praveenrgo...@gmail.com пишет: Yes it's a kernel command line arg, it is board specific token introduced to control the serial console. if defined serial console should not be enabled. Sorry I do not understand this sentence. define what? Please give exact example of kernel command line and explain what behavior you expect in this case. we have this in place for other system initializing system - sytemV , where depending On Fri, Apr 17, 2015 at 4:24 PM, Lennart Poettering lenn...@poettering.net javascript:_e(%7B%7D,'cvml','lenn...@poettering.net'); wrote: On Fri, 17.04.15 15:54, Praveen kumar R (praveenrgo...@gmail.com javascript:_e(%7B%7D,'cvml','praveenrgo...@gmail.com');) wrote: I have a token passed on by command line argument on which I need to decide to start the serial On which command line? Kernel command line? What kind of token? console or not. I plan to tweak the getty*ttyS0.service and add the script which validates the token and starts the console. Is this the right approach or is there any better way of handling it ?? To get a login getty on the serial port its sufficient to add console=ttyS0... to the kernel cmdline. systemd automatically starts a serial getty automatically on the first terminal the kernel console is pointing to. Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] controlling serial console using a token
This is the snippet of the code in the systemV init system that controls the serial console login depending on the token TOKENEXIST=`grep TOKEN= /proc/cmdline` TOKEN=0 if [ X$TOKENEXIST != X ]; then #If token is pass as a command line arg, use it. TOKEN=`sed 's/.*TOKEN=//; s/ .*//' /proc/cmdline` fi TOKENOVERRIDE=`grep TOKENOVERRIDE= /proc/cmdline` if [ X$TOKENOVERRIDE != X ]; then #If token is pass as a command line arg, use it. OVERRIDE=`sed 's/.*TOKENOVERRIDE=//; s/ .*//' /proc/cmdline` let TOKEN = $TOKEN $OVERRIDE fi echo TOKEN = $TOKEN let CONSOLE_LOGIN = $TOKEN 512 if [ $CONSOLE_LOGIN -ne 0 ]; then echo [`eval $uptime`]: Begin Console Access /etc/console_login echo eCM console is enabled export ENABLE_ECM_CONSOLE=y else echo [`eval $uptime`]: Token doesn't allow console access export ENABLE_ECM_CONSOLE=n fi I am trying to implement the same in the sytemd init system. On Sun, Apr 19, 2015 at 11:48 AM, Andrei Borzenkov arvidj...@gmail.com wrote: В Sat, 18 Apr 2015 19:54:50 +0530 Praveen kumar R praveenrgo...@gmail.com пишет: Yes it's a kernel command line arg, it is board specific token introduced to control the serial console. if defined serial console should not be enabled. Sorry I do not understand this sentence. define what? Please give exact example of kernel command line and explain what behavior you expect in this case. we have this in place for other system initializing system - sytemV , where depending On Fri, Apr 17, 2015 at 4:24 PM, Lennart Poettering lenn...@poettering.net javascript:_e(%7B%7D,'cvml','lenn...@poettering.net'); wrote: On Fri, 17.04.15 15:54, Praveen kumar R (praveenrgo...@gmail.com javascript:_e(%7B%7D,'cvml','praveenrgo...@gmail.com');) wrote: I have a token passed on by command line argument on which I need to decide to start the serial On which command line? Kernel command line? What kind of token? console or not. I plan to tweak the getty*ttyS0.service and add the script which validates the token and starts the console. Is this the right approach or is there any better way of handling it ?? To get a login getty on the serial port its sufficient to add console=ttyS0... to the kernel cmdline. systemd automatically starts a serial getty automatically on the first terminal the kernel console is pointing to. Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] controlling serial console using a token
В Mon, 20 Apr 2015 09:09:09 +0530 Praveen kumar R praveenrgo...@gmail.com пишет: This is the snippet of the code in the systemV init system that controls the serial console login depending on the token TOKENEXIST=`grep TOKEN= /proc/cmdline` TOKEN=0 if [ X$TOKENEXIST != X ]; then #If token is pass as a command line arg, use it. TOKEN=`sed 's/.*TOKEN=//; s/ .*//' /proc/cmdline` fi TOKENOVERRIDE=`grep TOKENOVERRIDE= /proc/cmdline` if [ X$TOKENOVERRIDE != X ]; then #If token is pass as a command line arg, use it. OVERRIDE=`sed 's/.*TOKENOVERRIDE=//; s/ .*//' /proc/cmdline` let TOKEN = $TOKEN $OVERRIDE fi echo TOKEN = $TOKEN let CONSOLE_LOGIN = $TOKEN 512 if [ $CONSOLE_LOGIN -ne 0 ]; then echo [`eval $uptime`]: Begin Console Access /etc/console_login echo eCM console is enabled export ENABLE_ECM_CONSOLE=y else echo [`eval $uptime`]: Token doesn't allow console access export ENABLE_ECM_CONSOLE=n fi I am trying to implement the same in the sytemd init system. The straightforward approach is to put this code in generator that parses command line. It can mask standard console service and create unit for your console. On Sun, Apr 19, 2015 at 11:48 AM, Andrei Borzenkov arvidj...@gmail.com wrote: В Sat, 18 Apr 2015 19:54:50 +0530 Praveen kumar R praveenrgo...@gmail.com пишет: Yes it's a kernel command line arg, it is board specific token introduced to control the serial console. if defined serial console should not be enabled. Sorry I do not understand this sentence. define what? Please give exact example of kernel command line and explain what behavior you expect in this case. we have this in place for other system initializing system - sytemV , where depending On Fri, Apr 17, 2015 at 4:24 PM, Lennart Poettering lenn...@poettering.net javascript:_e(%7B%7D,'cvml','lenn...@poettering.net'); wrote: On Fri, 17.04.15 15:54, Praveen kumar R (praveenrgo...@gmail.com javascript:_e(%7B%7D,'cvml','praveenrgo...@gmail.com');) wrote: I have a token passed on by command line argument on which I need to decide to start the serial On which command line? Kernel command line? What kind of token? console or not. I plan to tweak the getty*ttyS0.service and add the script which validates the token and starts the console. Is this the right approach or is there any better way of handling it ?? To get a login getty on the serial port its sufficient to add console=ttyS0... to the kernel cmdline. systemd automatically starts a serial getty automatically on the first terminal the kernel console is pointing to. Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] controlling serial console using a token
You mean in the *getty-generator.c ?* On Mon, Apr 20, 2015 at 9:14 AM, Andrei Borzenkov arvidj...@gmail.com wrote: В Mon, 20 Apr 2015 09:09:09 +0530 Praveen kumar R praveenrgo...@gmail.com пишет: This is the snippet of the code in the systemV init system that controls the serial console login depending on the token TOKENEXIST=`grep TOKEN= /proc/cmdline` TOKEN=0 if [ X$TOKENEXIST != X ]; then #If token is pass as a command line arg, use it. TOKEN=`sed 's/.*TOKEN=//; s/ .*//' /proc/cmdline` fi TOKENOVERRIDE=`grep TOKENOVERRIDE= /proc/cmdline` if [ X$TOKENOVERRIDE != X ]; then #If token is pass as a command line arg, use it. OVERRIDE=`sed 's/.*TOKENOVERRIDE=//; s/ .*//' /proc/cmdline` let TOKEN = $TOKEN $OVERRIDE fi echo TOKEN = $TOKEN let CONSOLE_LOGIN = $TOKEN 512 if [ $CONSOLE_LOGIN -ne 0 ]; then echo [`eval $uptime`]: Begin Console Access /etc/console_login echo eCM console is enabled export ENABLE_ECM_CONSOLE=y else echo [`eval $uptime`]: Token doesn't allow console access export ENABLE_ECM_CONSOLE=n fi I am trying to implement the same in the sytemd init system. The straightforward approach is to put this code in generator that parses command line. It can mask standard console service and create unit for your console. On Sun, Apr 19, 2015 at 11:48 AM, Andrei Borzenkov arvidj...@gmail.com wrote: В Sat, 18 Apr 2015 19:54:50 +0530 Praveen kumar R praveenrgo...@gmail.com пишет: Yes it's a kernel command line arg, it is board specific token introduced to control the serial console. if defined serial console should not be enabled. Sorry I do not understand this sentence. define what? Please give exact example of kernel command line and explain what behavior you expect in this case. we have this in place for other system initializing system - sytemV , where depending On Fri, Apr 17, 2015 at 4:24 PM, Lennart Poettering lenn...@poettering.net javascript:_e(%7B%7D,'cvml','lenn...@poettering.net'); wrote: On Fri, 17.04.15 15:54, Praveen kumar R (praveenrgo...@gmail.com javascript:_e(%7B%7D,'cvml','praveenrgo...@gmail.com');) wrote: I have a token passed on by command line argument on which I need to decide to start the serial On which command line? Kernel command line? What kind of token? console or not. I plan to tweak the getty*ttyS0.service and add the script which validates the token and starts the console. Is this the right approach or is there any better way of handling it ?? To get a login getty on the serial port its sufficient to add console=ttyS0... to the kernel cmdline. systemd automatically starts a serial getty automatically on the first terminal the kernel console is pointing to. Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
[systemd-devel] controlling serial console using a token
Yes it's a kernel command line arg, it is board specific token introduced to control the serial console. if defined serial console should not be enabled. we have this in place for other system initializing system - sytemV , where depending On Fri, Apr 17, 2015 at 4:24 PM, Lennart Poettering lenn...@poettering.net javascript:_e(%7B%7D,'cvml','lenn...@poettering.net'); wrote: On Fri, 17.04.15 15:54, Praveen kumar R (praveenrgo...@gmail.com javascript:_e(%7B%7D,'cvml','praveenrgo...@gmail.com');) wrote: I have a token passed on by command line argument on which I need to decide to start the serial On which command line? Kernel command line? What kind of token? console or not. I plan to tweak the getty*ttyS0.service and add the script which validates the token and starts the console. Is this the right approach or is there any better way of handling it ?? To get a login getty on the serial port its sufficient to add console=ttyS0... to the kernel cmdline. systemd automatically starts a serial getty automatically on the first terminal the kernel console is pointing to. Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] controlling serial console using a token
On Fri, 17.04.15 15:54, Praveen kumar R (praveenrgo...@gmail.com) wrote: I have a token passed on by command line argument on which I need to decide to start the serial On which command line? Kernel command line? What kind of token? console or not. I plan to tweak the getty*ttyS0.service and add the script which validates the token and starts the console. Is this the right approach or is there any better way of handling it ?? To get a login getty on the serial port its sufficient to add console=ttyS0... to the kernel cmdline. systemd automatically starts a serial getty automatically on the first terminal the kernel console is pointing to. Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
[systemd-devel] controlling serial console using a token
I have a token passed on by command line argument on which I need to decide to start the serial console or not. I plan to tweak the getty*ttyS0.service and add the script which validates the token and starts the console. Is this the right approach or is there any better way of handling it ?? Thanks, Praveen R ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
