* get_user() and put_user() missing in syscall list @ 2014-06-02 5:59 Dipanjan Das 2014-06-02 8:13 ` Varka Bhadram 0 siblings, 1 reply; 5+ messages in thread From: Dipanjan Das @ 2014-06-02 5:59 UTC (permalink / raw) To: kernelnewbies Hi, Here's an exhaustive list <http://man7.org/linux/man-pages/man2/syscalls.2.html> of Linux syscall, but I can't find get_user() and put_user() API. Why is it so? What am I missing? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20140602/4fb9775f/attachment.html ^ permalink raw reply [flat|nested] 5+ messages in thread
* get_user() and put_user() missing in syscall list 2014-06-02 5:59 get_user() and put_user() missing in syscall list Dipanjan Das @ 2014-06-02 8:13 ` Varka Bhadram 2014-06-02 8:19 ` Dipanjan Das 0 siblings, 1 reply; 5+ messages in thread From: Varka Bhadram @ 2014-06-02 8:13 UTC (permalink / raw) To: kernelnewbies These two are not the system calls. they are the Kernel API's to transfer the data from user address space to the kernel address space. please see: http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239 <http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239> http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L143 <http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L143> Regards, Varka Bhadram On June 2, 2014 at 11:29 AM Dipanjan Das <mail.dipanjan.das@gmail.com> wrote: <http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239> > > Hi, > > Here's an exhaustive list > <http://man7.org/linux/man-pages/man2/syscalls.2.html> of Linux syscall, but I > can't find get_user() and put_user() API. Why is it so? What am I missing? > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies at kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > ------------------------------------------------------------------------------------------------------------------------------- [ C-DAC is on Social-Media too. Kindly follow us at: Facebook: https://www.facebook.com/CDACINDIA & Twitter: @cdacindia ] This e-mail is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies and the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email is strictly prohibited and appropriate legal action will be taken. ------------------------------------------------------------------------------------------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20140602/9bebffe2/attachment.html ^ permalink raw reply [flat|nested] 5+ messages in thread
* get_user() and put_user() missing in syscall list 2014-06-02 8:13 ` Varka Bhadram @ 2014-06-02 8:19 ` Dipanjan Das 2014-06-02 8:28 ` Sudip Mukherjee 2014-06-02 8:37 ` Varka Bhadram 0 siblings, 2 replies; 5+ messages in thread From: Dipanjan Das @ 2014-06-02 8:19 UTC (permalink / raw) To: kernelnewbies I am new to Linux kernel stuffs. How are Kernel API and syscalls differ from each other? On 2 June 2014 13:43, Varka Bhadram <varkab@cdac.in> wrote: > These two are not the system calls. they are the Kernel API's to > transfer the data from user address space to the kernel address space. > > please see: > http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239 > http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L143 > > Regards, > Varka Bhadram > > *MailScanner has detected a possible fraud attempt from > "lxr.free-electrons.com" claiming to be* On June 2, 2014 at 11:29 AM > Dipanjan Das <mail.dipanjan.das@gmail.com> wrote: > <http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239> > > > Hi, > > Here's an exhaustive list > <http://man7.org/linux/man-pages/man2/syscalls.2.html> of Linux syscall, > but I can't find get_user() and put_user() API. Why is it so? What am I > missing? > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies at kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > > > > ------------------------------------------------------------------------------------------------------------------------------- > > [ C-DAC is on Social-Media too. Kindly follow us at: > Facebook: https://www.facebook.com/CDACINDIA & Twitter: @cdacindia ] > > This e-mail is for the sole use of the intended recipient(s) and may > contain confidential and privileged information. If you are not the > intended recipient, please contact the sender by reply e-mail and destroy > all copies and the original message. Any unauthorized review, use, > disclosure, dissemination, forwarding, printing or copying of this email > is strictly prohibited and appropriate legal action will be taken. > ------------------------------------------------------------------------------------------------------------------------------- > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20140602/88a76982/attachment.html ^ permalink raw reply [flat|nested] 5+ messages in thread
* get_user() and put_user() missing in syscall list 2014-06-02 8:19 ` Dipanjan Das @ 2014-06-02 8:28 ` Sudip Mukherjee 2014-06-02 8:37 ` Varka Bhadram 1 sibling, 0 replies; 5+ messages in thread From: Sudip Mukherjee @ 2014-06-02 8:28 UTC (permalink / raw) To: kernelnewbies On Mon, Jun 2, 2014 at 1:49 PM, Dipanjan Das <mail.dipanjan.das@gmail.com> wrote: > > I am new to Linux kernel stuffs. How are Kernel API and syscalls differ > from each other? > syscalls are system calls which which will be used by your application in user space. syscalls table will map the userspace syatem call with the related function in kernel space. kernel API are the functions which can only be used in kernel space and they do not have any existence in userspace. Regards Sudip -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20140602/85a97a03/attachment-0001.html ^ permalink raw reply [flat|nested] 5+ messages in thread
* get_user() and put_user() missing in syscall list 2014-06-02 8:19 ` Dipanjan Das 2014-06-02 8:28 ` Sudip Mukherjee @ 2014-06-02 8:37 ` Varka Bhadram 1 sibling, 0 replies; 5+ messages in thread From: Varka Bhadram @ 2014-06-02 8:37 UTC (permalink / raw) To: kernelnewbies http://stackoverflow.com/questions/20172111/difference-between-system-api-and-system-call-api http://stackoverflow.com/questions/17219898/what-is-the-difference-between-linux-kernel-api-system-calls-system-inter These two links will give the diffrence b/w them... On June 2, 2014 at 1:49 PM Dipanjan Das <mail.dipanjan.das@gmail.com> wrote: > > I am new to Linux kernel stuffs. How are Kernel API and syscalls differ from > each other? > > > On 2 June 2014 13:43, Varka Bhadram <varkab at cdac.in <mailto:varkab@cdac.in> > > wrote: > > > These two are not the system calls. they are the Kernel API's to > > > transfer the data from user address space to the kernel address space. > > > > please see: > > http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239 > > <http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239> > > http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L143 > > <http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L143> > > > > Regards, > > Varka Bhadram > > > > MailScanner has detected a possible fraud attempt from > > "lxr.free-electrons.com" claiming to be On June 2, 2014 at 11:29 AM Dipanjan > > Das <mail.dipanjan.das@gmail.com> wrote: > > <http://lxr.free-electrons.com/source/arch/x86/include/asm/uaccess.h#L239> > > > > > > > > > > Hi, > > > > > > Here's an exhaustive list > > > <http://man7.org/linux/man-pages/man2/syscalls.2.html> of Linux syscall, > > > but I can't find get_user() and put_user() API. Why is it so? What am I > > > missing? > > > _______________________________________________ > > > Kernelnewbies mailing list > > > Kernelnewbies at kernelnewbies.org > > > <mailto:Kernelnewbies@kernelnewbies.org> > > > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > > <http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies> > > > > > > > > > > > > > > ------------------------------------------------------------------------------------------------------------------------------- > > [ C-DAC is on Social-Media too. Kindly follow us at: > > Facebook: https://www.facebook.com/CDACINDIA > > <https://www.facebook.com/CDACINDIA> & Twitter: @cdacindia ] > > > > This e-mail is for the sole use of the intended recipient(s) and may > > contain confidential and privileged information. If you are not the > > intended recipient, please contact the sender by reply e-mail and destroy > > all copies and the original message. Any unauthorized review, use, > > disclosure, dissemination, forwarding, printing or copying of this email > > is strictly prohibited and appropriate legal action will be taken. > > > > ------------------------------------------------------------------------------------------------------------------------------- > > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies at kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > ------------------------------------------------------------------------------------------------------------------------------- [ C-DAC is on Social-Media too. Kindly follow us at: Facebook: https://www.facebook.com/CDACINDIA & Twitter: @cdacindia ] This e-mail is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies and the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email is strictly prohibited and appropriate legal action will be taken. ------------------------------------------------------------------------------------------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20140602/0b8382e0/attachment.html ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2014-06-02 8:37 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2014-06-02 5:59 get_user() and put_user() missing in syscall list Dipanjan Das 2014-06-02 8:13 ` Varka Bhadram 2014-06-02 8:19 ` Dipanjan Das 2014-06-02 8:28 ` Sudip Mukherjee 2014-06-02 8:37 ` Varka Bhadram
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