mirror of
https://github.com/checkpoint-restore/criu
synced 2025-08-22 18:07:57 +00:00
6bbdec26f3
Here is nothing interecting. If a file can't be dumped by criu,
plugins are called. If one of plugins knows how to dump the file,
the file entry is marked as need_callback. On restore if we see
this mark, we execute plugins for restoring the file.
v2: Callbacks are called for all files, which are not supported by CRIU.
v3: Call plugins for a file instead of file descriptor. A few file
descriptors can be associated with one file.
v4: A file descriptor is opened in a callback. It's required for
restoring anon vmas.
v5: Add a separate type for unsupported files
v6: define FD_TYPES__UNSUPP
v7: s/unsupp/ext (external)
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
#include <stdlib.h>
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#include "image-desc.h"
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#include "cr-show.h"
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#include "magic.h"
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/*
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* The cr fd set is the set of files where the information
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* about dumped processes is stored. Each file carries some
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* small portion of info about the whole picture, see below
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* for more details.
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*/
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#define FD_ENTRY(_name, _fmt) \
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[CR_FD_##_name] = { \
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.fmt = _fmt ".img", \
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.magic = _name##_MAGIC, \
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}
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struct cr_fd_desc_tmpl fdset_template[CR_FD_MAX] = {
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FD_ENTRY(INVENTORY, "inventory"),
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FD_ENTRY(FDINFO, "fdinfo-%d"),
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FD_ENTRY(PAGEMAP, "pagemap-%ld"),
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FD_ENTRY(SHMEM_PAGEMAP, "pagemap-shmem-%ld"),
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FD_ENTRY(REG_FILES, "reg-files"),
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FD_ENTRY(EXT_FILES, "ext-files"),
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FD_ENTRY(NS_FILES, "ns-files"),
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FD_ENTRY(EVENTFD_FILE, "eventfd"),
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FD_ENTRY(EVENTPOLL_FILE,"eventpoll"),
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FD_ENTRY(EVENTPOLL_TFD, "eventpoll-tfd"),
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FD_ENTRY(SIGNALFD, "signalfd"),
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FD_ENTRY(INOTIFY_FILE, "inotify"),
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FD_ENTRY(INOTIFY_WD, "inotify-wd"),
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FD_ENTRY(FANOTIFY_FILE, "fanotify"),
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FD_ENTRY(FANOTIFY_MARK, "fanotify-mark"),
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FD_ENTRY(CORE, "core-%d"),
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FD_ENTRY(IDS, "ids-%d"),
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FD_ENTRY(MM, "mm-%d"),
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FD_ENTRY(VMAS, "vmas-%d"),
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FD_ENTRY(PIPES, "pipes"),
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FD_ENTRY(PIPES_DATA, "pipes-data"),
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FD_ENTRY(FIFO, "fifo"),
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FD_ENTRY(FIFO_DATA, "fifo-data"),
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FD_ENTRY(PSTREE, "pstree"),
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FD_ENTRY(SIGACT, "sigacts-%d"),
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FD_ENTRY(UNIXSK, "unixsk"),
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FD_ENTRY(INETSK, "inetsk"),
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FD_ENTRY(PACKETSK, "packetsk"),
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FD_ENTRY(NETLINK_SK, "netlinksk"),
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FD_ENTRY(SK_QUEUES, "sk-queues"),
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FD_ENTRY(ITIMERS, "itimers-%d"),
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FD_ENTRY(POSIX_TIMERS, "posix-timers-%d"),
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FD_ENTRY(CREDS, "creds-%d"),
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FD_ENTRY(UTSNS, "utsns-%d"),
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FD_ENTRY(IPC_VAR, "ipcns-var-%d"),
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FD_ENTRY(IPCNS_SHM, "ipcns-shm-%d"),
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FD_ENTRY(IPCNS_MSG, "ipcns-msg-%d"),
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FD_ENTRY(IPCNS_SEM, "ipcns-sem-%d"),
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FD_ENTRY(FS, "fs-%d"),
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FD_ENTRY(REMAP_FPATH, "remap-fpath"),
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FD_ENTRY(GHOST_FILE, "ghost-file-%x"),
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FD_ENTRY(TCP_STREAM, "tcp-stream-%x"),
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FD_ENTRY(MNTS, "mountpoints-%d"),
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FD_ENTRY(NETDEV, "netdev-%d"),
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FD_ENTRY(IFADDR, "ifaddr-%d"),
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FD_ENTRY(ROUTE, "route-%d"),
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FD_ENTRY(IPTABLES, "iptables-%d"),
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FD_ENTRY(TMPFS, "tmpfs-%d.tar.gz"),
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FD_ENTRY(TTY_FILES, "tty"),
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FD_ENTRY(TTY_INFO, "tty-info"),
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FD_ENTRY(FILE_LOCKS, "filelocks-%d"),
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FD_ENTRY(RLIMIT, "rlimit-%d"),
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FD_ENTRY(PAGES, "pages-%u"),
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FD_ENTRY(PAGES_OLD, "pages-%d"),
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FD_ENTRY(SHM_PAGES_OLD, "pages-shmem-%ld"),
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FD_ENTRY(SIGNAL, "signal-s-%d"),
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FD_ENTRY(PSIGNAL, "signal-p-%d"),
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FD_ENTRY(TUNFILE, "tunfile"),
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[CR_FD_STATS] = {
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.fmt = "stats-%s",
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.magic = STATS_MAGIC,
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},
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};
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