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criu/include/cr-service.h

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crtools: initial skeleton for cr_service The criu service is a daemon, that opens a unix socket and listens for incoming requests. The requests will be declared in protobuf/rpc.proto and for now will only contain the 'dump' request. Signed-off-by: Ruslan Kuprieiev <kupruser@gmail.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-09-13 13:43:56 +04:00
#ifndef __CR_SERVICE_H__
#define __CR_SERVICE_H__
crtools: Add cr_service meat The need in service is described at http://criu.org/Self_dump Signed-off-by: Ruslan Kuprieiev <kupruser@gmail.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-09-13 13:44:09 +04:00
#include "protobuf/rpc.pb-c.h"
headers: Add extern specificator to functions We really have a mess of extern/non-extern declaration of functions in our headers. Always use extern for unification purpose. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-11-15 14:04:48 +04:00
extern int cr_service(bool deamon_mode);
crtools: Add internal "swrk" action To help restoring tasks from images as kids to the caller, we can do the trick. 1. Caller sets himself as child reaper with PR_SET_CHILD_SUBREAPER prctl 2. Caller makes sure criu binary is suid-ed and owned by root 3. Caller forks and calls execv() on criu asking it to restore 4. Criu finishes restore and exits. All its kids get reparented to the criu's parent, i.e. -- to the library caller. 5. Caller stops being subreaper In order to make the execv() and arguments passing simpler I propose to execv() the service worker function, that accepts options via socket. This is good for two reasons. 1. We don't have to construct CLI options in libcriu 2. We reuse other service's facilities, such as security checks, ability to dump, pre-dump and other stuff Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2014-06-17 21:08:49 +04:00
int cr_service_work(int sk);
crtools: Add cr_service meat The need in service is described at http://criu.org/Self_dump Signed-off-by: Ruslan Kuprieiev <kupruser@gmail.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-09-13 13:44:09 +04:00
headers: Add extern specificator to functions We really have a mess of extern/non-extern declaration of functions in our headers. Always use extern for unification purpose. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-11-15 14:04:48 +04:00
extern int send_criu_dump_resp(int socket_fd, bool success, bool restored);
crtools: Add cr_service meat The need in service is described at http://criu.org/Self_dump Signed-off-by: Ruslan Kuprieiev <kupruser@gmail.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-09-13 13:44:09 +04:00
extern struct _cr_service_client *cr_service_client;
service: Put service sk inode into separate variable I'm about to get rid of service state struct. Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-09-28 06:06:53 +04:00
extern unsigned int service_sk_ino;
crtools: initial skeleton for cr_service The criu service is a daemon, that opens a unix socket and listens for incoming requests. The requests will be declared in protobuf/rpc.proto and for now will only contain the 'dump' request. Signed-off-by: Ruslan Kuprieiev <kupruser@gmail.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-09-13 13:43:56 +04:00
headers: Add missing __CR_ at last endif For big #ifdef/#endif chunks we do a comment /* */ at #endif. Add missing ones. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-11-15 14:04:45 +04:00
#endif /* __CR_SERVICE_H__ */
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