We will need it when parasite engine will be creating signal frames.
Export appropriate headers and use it in CRIU by linking with libcompel.a.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
pr_out is only special left in piegen engine, the rest use
compel's pr_x output. Probably we will need to enhance it
one day to make same close to what we have in criu.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This includes
* The close_safe() routine for infect
* Callback for opening proc files on infect_ctx
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This removes restorer.h from infect. The header describes
routines, structures and constants messing with restorer blob.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This is
* Move parasite_setup_regs() and related into arch/infect
* Move arch_can_dump_task() into infect
* Move parasite_send_fd() into infect-util
and completes parasite-syscall.h removal.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
For now it's becoming the part of the compel API and lets
us remove parasite-syscall.h from infect.c. The former header
includes declarations of CRIU dumping routines that work with
parasite code.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
The criu/ptrace.c will also go into compel sources, so
detach the needed code from CRIU as well.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This header describes CRIU parasite code, it has nothing
to do with infect, so remove it.
To do this we need to:
* Detach infect RPC commands from criu-parasite ones
* Move parasite_init_args and parasite_unmap_args into infect
* Move PARASITE_AREA_MIN into infect
* Hiding PARASITE_STACK_SIZE-s in infect
* Hiding parasite symbols resolvers in infect
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
To be able to include compel/asm/ headers when needed.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Same split as was previously done with parasite-syscall.c now
with arch/*/crtools.c files.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
I.e. -- the infect_ctX structure. Now it's in infect.h and
is aimed for compel sources.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
... and hide compel priv from parasite-syscall.
Now it's completely isolated inside compel.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Note -- presumably it's another functionality block inside compel,
so another .c file might be tempting here.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Note -- this will go away from compel API with cr-exec.c
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This is the code that lets caller place arguments into memory
shared between parasite and compel (or caller).
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Not only infect() routine but all dependant code too. This is
the core of the library actually.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This structure will be internal to compel. Users will only see
one as opaque pointer and read data from it using calls.
Exception for now -- infect_ictx. This is a configuration structure
that will be embeded into ctl and seen outside.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
We'll collect the compel code here and will move all these
files into compel library by the last patch of this set.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Now we can split the parasite_infect_seized() into CRIU-specific
part and independent part that is to become compel code.
The API to infect() is for now a bit clumsy, but I will rectify one
a bit more in the next patches.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This is the address of an executable VMA. To get one
we need to parse /proc/pid/maps, compel will do it, but
since criu already parses this file (to dump task vmas),
we can provide the address via ictx.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Two calls -- to keep the registers and to put them back onto
sigframe. For CRIU the keeping is performed on CoreEntry.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
To track victim health state criu sets up the sigchild handler.
So will have to do the compel, but the ability to request for
own handler would be required.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
These will control various behavior of infection engine. For now
only fault-injections.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This structure will become the part of compel A[PB]I and
will be used by compel clients as configuration structure.
For now put there the pointer on a socket living in victim's
netns. If empty (-1), compel will create this socket its own,
but CRIU already creates such in an effective manner.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
When seizeing task we need to parse /proc/pid/status for its
state, parent, signals and seccomp status.
In criu case we also parse other stuff in one go, so make
this parsing be a callback which criu will provide.
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
