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Andrey Vagin 9e3f4451e1 unix: add ability to set callbacks for external sockets (v5) 
We don't know a state behind an external socket. It depends on logic
of the program, which handles this socket.

This patch adds ability to load a library with callbacks for dumping
and restoring external sockets.

This patch introduces two callbacks cr_plugin_dump_unix_sk and
cr_plugin_restore_unix_sk. If a callback can not handle a socket, it
must return -ENOTSUP.

The main questions, what kind of information should be tranfered in
these callbacks. Pls, think a few minutes about that and send me
your opinion.

v2: Use uflags instread of adding a new field
v3: clean up
v4: Unsuitable callbacks return -ENOTSUP.
v5: set USK_CALLBACK, if a socket was dumped by callback.

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-12-20 15:28:41 +04:00
arch headers: Drop uintX_t usage 2013-12-12 10:03:07 +04:00
Documentation docs: Add 'service' command description 2013-11-01 14:29:12 +04:00
include unix: add ability to set callbacks for external sockets (v5) 2013-12-20 15:28:41 +04:00
lib lib: return -EBADE instead of -1 2013-12-18 21:08:58 +04:00
pie plugin: allow to use logging function in plugins 2013-12-18 21:52:12 +04:00
protobuf make: protobuf -- Explicitly clean generated files 2013-12-13 15:58:32 +04:00
scripts make: add ldflags-so variable to make engine 2013-12-18 14:26:07 +04:00
test zdtm: add a new test, which creates and destroys threads 2013-12-19 22:53:42 +04:00
.gitignore git: Don't track *.so files 2013-08-29 14:48:17 +04:00
.mailmap repo: Add mailmap file 2012-03-25 23:31:20 +04:00
COPYING Add LGPL licence for library directory 2013-04-01 12:29:06 +04:00
cr-check.c criu check: don't run as non-root 2013-12-13 13:58:45 +04:00
cr-dedup.c dedup: Mark dedup_one_pagemap static 2013-12-18 14:57:17 +04:00
cr-dump.c crtools: rework freeze of processes (v2) 2013-12-20 15:16:11 +04:00
cr-exec.c crtools: don't include util.h in crtools.h 2013-11-06 15:42:12 +04:00
cr-restore.c crtools: preload libraries (v2) 2013-12-19 21:48:33 +04:00
cr-service.c service: Add coment about cr_dump_task() scripts code propagation 2013-12-18 21:24:52 +04:00
cr-show.c space-before-tab whitespace cleanup 2013-12-12 10:00:53 +04:00
CREDITS Add the CREDITS file 2012-07-30 13:52:37 +04:00
crtools crtools: rename binary to criu 2013-04-30 20:17:55 +04:00
crtools.c crtools: preload libraries (v2) 2013-12-19 21:48:33 +04:00
eventfd.c crtools: move pid_rst_prio to pid.h 2013-11-06 18:18:12 +04:00
eventpoll.c crtools: move pid_rst_prio to pid.h 2013-11-06 18:18:12 +04:00
fifo.c crtools: move pid_rst_prio to pid.h 2013-11-06 18:18:12 +04:00
file-ids.c x86: moved x86-specific files into the directory arch/x86. 2013-01-09 17:02:47 +04:00
file-lock.c crtools: move cr_options in a separate header 2013-11-06 18:17:52 +04:00
files-reg.c space-before-tab whitespace cleanup 2013-12-12 10:00:53 +04:00
files.c files: transfer file descriptor in dump_unsupp_fd 2013-12-18 21:54:11 +04:00
fsnotify.c whitespace-at-eol cleanup 2013-12-12 10:00:45 +04:00
image-desc.c net: Save and restore iptables in net namespace 2013-10-04 02:51:33 +04:00
image.c v3 Fix for open_pages_image_at to read if opened with O_RDWR 2013-12-18 14:50:47 +04:00
ipc_ns.c crtools: move cr_options in a separate header 2013-11-06 18:17:52 +04:00
kcmp-ids.c x86: moved x86-specific files into the directory arch/x86. 2013-01-09 17:02:47 +04:00
kerndat.c rst: Read sys.last_cap only once in kerndat 2013-10-12 00:03:25 +04:00
libnetlink.c netlink: Lower netlink error report log level 2013-07-04 15:49:02 +04:00
log.c pidfile: Don't push opts.pidfile as write_pidfile arg 2013-11-20 14:26:41 +04:00
Makefile crtools: preload libraries (v2) 2013-12-19 21:48:33 +04:00
Makefile.config string: Add strlcat helper 2013-11-29 15:36:07 +04:00
Makefile.crtools crtools: preload libraries (v2) 2013-12-19 21:48:33 +04:00
Makefile.inc systemd socket activation support 2013-12-12 09:58:50 +04:00
mem.c whitespace-at-eol cleanup 2013-12-12 10:00:45 +04:00
mount.c mnt_tree_for_each_reverse(): init a variable 2013-12-20 11:26:12 +04:00
namespaces.c whitespace-at-eol cleanup 2013-12-12 10:00:45 +04:00
net.c net: Don't create lo on netns restore 2013-11-08 16:52:20 +04:00
netfilter.c iptables: use cr_system instead of system 2013-10-02 20:09:37 +04:00
page-pipe.c headers: Move fcntl related data to include/fcntl.h 2013-11-14 22:13:10 +04:00
page-read.c page-read: Fix naming 2013-12-18 14:55:22 +04:00
page-xfer.c page-read: Fix naming 2013-12-18 14:55:22 +04:00
parasite-syscall.c crtools: move all stuff about fdset in a separate header 2013-11-06 15:24:48 +04:00
pipes.c crtools: move pid_rst_prio to pid.h 2013-11-06 18:18:12 +04:00
plugin.c unix: add ability to set callbacks for external sockets (v5) 2013-12-20 15:28:41 +04:00
proc_parse.c btrfs: Remove volume parsing code 2013-12-11 17:18:59 +04:00
protobuf-desc.c build: Generate most of the pb-desc automatically 2013-08-23 21:47:31 +04:00
protobuf.c crtools: don't include image.h in crtools.h 2013-11-06 15:42:09 +04:00
pstree.c pstree: don't include restorer.h in pstree.c 2013-11-08 16:46:32 +04:00
ptrace.c dump: try to stop a task as soon as possible 2013-12-20 15:16:12 +04:00
rbtree.c code: Fix spaced indentation where found 2012-08-11 21:36:03 +04:00
README README: crtools to criu rename 2013-05-10 11:02:02 +04:00
rst-malloc.c whitespace-at-eol cleanup 2013-12-12 10:00:45 +04:00
sd-daemon.c systemd socket activation support 2013-12-12 09:58:50 +04:00
sd-daemon.h systemd socket activation support 2013-12-12 09:58:50 +04:00
security.c headers: Drop uintX_t usage 2013-12-12 10:03:07 +04:00
shmem.c headers: Move fcntl related data to include/fcntl.h 2013-11-14 22:13:10 +04:00
sigframe.c sigframe: don't include restorer.h 2013-11-06 12:37:38 +04:00
signalfd.c crtools: move pid_rst_prio to pid.h 2013-11-06 18:18:12 +04:00
sk-inet.c headers: Drop uintX_t usage 2013-12-12 10:03:07 +04:00
sk-netlink.c crtools: move pid_rst_prio to pid.h 2013-11-06 18:18:12 +04:00
sk-packet.c crtools: move all stuff about fdset in a separate header 2013-11-06 15:24:48 +04:00
sk-queue.c crtools: move pid_rst_prio to pid.h 2013-11-06 18:18:12 +04:00
sk-tcp.c tcp: restore the boundary between sent and unsent data 2013-11-14 17:15:44 +04:00
sk-unix.c unix: add ability to set callbacks for external sockets (v5) 2013-12-20 15:28:41 +04:00
sockets.c headers: Drop uintX_t usage 2013-12-12 10:03:07 +04:00
stats.c v2 stats: write stats at work directory 2013-11-16 00:05:53 +04:00
string.c string: Add strlcat helper 2013-11-29 15:36:07 +04:00
sysctl.c sysctl: Don't forget to close fds 2013-04-05 08:23:17 +04:00
tty.c tty: Print very descriptive message about shell job dump 2013-12-03 09:59:17 +04:00
tun.c crtools: move cr_options in a separate header 2013-11-06 18:17:52 +04:00
util.c plugin: add a function to get a descriptor to the image dir 2013-12-19 21:49:39 +04:00
uts_ns.c crtools: move pid_rst_prio to pid.h 2013-11-06 18:18:12 +04:00

README 

criu
====

An utility to checkpoint/restore tasks.

Some code snippets are borrowed from

 - Linux kernel (http://kernel.org/)
 - git (http://git-scm.com/)
 - kvm-tools (https://github.com/penberg/linux-kvm)
 - ptrace-parasite (https://code.google.com/p/ptrace-parasite/)

Many thanks to these projects.

Licensed under GPLv2 (http://www.gnu.org/licenses/gpl-2.0.txt)