H i all,
You will get an error when trying to call ptrace system call on kernel threads.
In code, you have the following check:
static int ptrace_attach(struct task_struct *task, long request,
unsigned long addr,
unsigned long flags)
{
...
Hi,
Anyone has any idea about how to build fixdep with --static?
Best Regards,
SyncBQ
On Wed, Feb 20, 2013 at 3:06 PM, Sync Rico syncr...@gmail.com wrote:
Hi,
I have a problem with fixdep: a kernel was compiled on a PC and when
trying to build a kernel module for that kernel I use a
Hey,
My question is quite simple, I have an sk_buff that I want to transmit, the
sk_buff is an ICMP message and so far, I've built the headers and set up
everything.
The problem is, when I want to do such a thing, I typically use a function
called:
dev_queue_xmit which takes the skb and
hi
I am confused on booting from grub's rescue mode .
As we know ,before the kernel start ,the setup code, which is from setup.S
,will be executed at front.
If boot from rescue mode , will grub also load setup code and execute it ? or
grub execute its own code doing
the same work as
Hi, Adel,
You should use
ip_route_output_flow().
For this you should construct a
flowi4 instance.
ip_route_output_flow() is exported via EXPORT_SYMBOL_GPL.
See for example how this is done in udp_sendmsg().
Good luck!
Rami Rosen
http://ramirose.wix.com/ramirosen
On Fri, Feb 22, 2013 at 2:36
On Fri, Feb 22, 2013 at 3:47 PM, Rami Rosen roszenr...@gmail.com wrote:
Hi, Adel,
You should use
ip_route_output_flow().
For this you should construct a
flowi4 instance.
ip_route_output_flow() is exported via EXPORT_SYMBOL_GPL.
See for example how this is done in udp_sendmsg().
Good
I found out the method on account of your suggestion.
Anyone can refer to the article for detail.
https://lwn.net/Articles/143397/
Thanks
On Sat, Feb 16, 2013 at 7:54 PM, richard -rw- weinberger
richard.weinber...@gmail.com wrote:
On Sat, Feb 16, 2013 at 4:56 AM, Jimmy Pan dsp...@gmail.com
Hi, Adel,
ip_route_output_flow() calls
__ip_route_output_key().
The return value is the routing entry, rtable.
the parameters for __ip_route_output_key() do not
include sock; only net and flow (flp4).
And the __ip_route_output_key() is exported.
There is
a call for xfrm_lookup() which does need
On Fri, 22 Feb 2013 14:36:17 +0200, Adel Qodmani said:
My question is quite simple, I have an sk_buff that I want to transmit, the
sk_buff is an ICMP message and so far, I've built the headers and set up
everything.
Others have given some details on how. A better question is why.
Sending an
On Fri, Feb 22, 2013 at 4:38 PM, Kevin Wilson wkev...@gmail.com wrote:
Question: what is the reason that kernel threads cannot be traced while
userspace threads can be traced ?
Subjectively, I think that's because most kernel threads play
important roles in kernel's works. So tracing them might
Hi, Adel,
- In your first message you said you are using kernel modules.
- In case you intend to add code in ICMP for your special
requirements from the control protocol, then this seems not a good
idea (because this means patching the kernel for using your module;
and probably such patches
On Fri, 22 Feb 2013 17:15:35 +0200, you said:
I am trying to implement a new protocol that we've designed which works on
top of the IP layer, so I am using ICMP messages to carry control
information for the protocol.
Why using ICMP, it seemed natural since our protocol is a Network-layer
On Fri, Feb 22, 2013 at 5:40 PM, valdis.kletni...@vt.edu wrote:
In that case, you *really* want to go look at how TCP and SCTP and other
protocols handle ICMP integration. You want an API that integrates your
ICMP
handling with the rest of the protocol stack, because otherwise you'll
end up
just for test, ignore it if you receive it!___
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