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https://github.com/checkpoint-restore/criu.git
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84ebc64b1f
Well, we want to pre-dump files (fsnotifies), for that we will need mountinfo-s and root, and for the latter -- the current ns mask. The problem with current ns mask is that its generation is incorporated into ns IDs generation and dumping. And since the ids dumping is not performed on pre-dump, let's just provide a helper for ns-mask generation. Strictly speaking, the whole ns-mask idea is not great, but it's to be fixed later. Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
38 lines
944 B
C
38 lines
944 B
C
#ifndef __CR_NS_H__
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#define __CR_NS_H__
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#include "files.h"
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struct ns_desc {
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unsigned int cflag;
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char *str;
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size_t len;
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};
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#define NS_DESC_ENTRY(_cflag, _str) \
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{ \
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.cflag = _cflag, \
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.str = _str, \
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.len = sizeof(_str) - 1, \
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}
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extern bool check_ns_proc(struct fd_link *link);
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extern struct ns_desc pid_ns_desc;
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extern struct ns_desc user_ns_desc;
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extern unsigned long current_ns_mask;
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extern const struct fdtype_ops nsfile_dump_ops;
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extern struct collect_image_info nsfile_cinfo;
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extern int dump_namespaces(struct pstree_item *item, unsigned int ns_flags);
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extern int prepare_namespace(struct pstree_item *item, unsigned long clone_flags);
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extern int try_show_namespaces(int pid);
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extern int switch_ns(int pid, struct ns_desc *nd, int *rst);
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extern int restore_ns(int rst, struct ns_desc *nd);
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extern int dump_task_ns_ids(struct pstree_item *);
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extern int gen_predump_ns_mask(void);
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#endif /* __CR_NS_H__ */
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