mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-01-24 02:35:41 +00:00
8df879941d
"relative path" is absolute path with dot at the beginning. We already use relative paths on restore. In this patch we add "." on dump too. It's convinient, because we needed to add dot each time when we want to access this mount point. Before this patch we had to created a temporary copy. Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
177 lines
4.1 KiB
C
177 lines
4.1 KiB
C
#ifndef __CR_PROC_PARSE_H__
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#define __CR_PROC_PARSE_H__
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#include <sys/types.h>
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#include "asm/types.h"
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#include "image.h"
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#include "list.h"
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#include "protobuf/eventfd.pb-c.h"
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#include "protobuf/eventpoll.pb-c.h"
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#include "protobuf/signalfd.pb-c.h"
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#include "protobuf/fsnotify.pb-c.h"
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#define PROC_TASK_COMM_LEN 32
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#define PROC_TASK_COMM_LEN_FMT "(%31s"
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struct proc_pid_stat_small {
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int pid;
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char comm[PROC_TASK_COMM_LEN];
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char state;
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int ppid;
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int pgid;
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int sid;
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};
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struct proc_pid_stat {
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int pid;
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char comm[PROC_TASK_COMM_LEN];
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char state;
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int ppid;
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int pgid;
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int sid;
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int tty_nr;
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int tty_pgrp;
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unsigned int flags;
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unsigned long min_flt;
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unsigned long cmin_flt;
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unsigned long maj_flt;
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unsigned long cmaj_flt;
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unsigned long utime;
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unsigned long stime;
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long cutime;
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long cstime;
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long priority;
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long nice;
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int num_threads;
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int zero0;
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unsigned long long start_time;
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unsigned long vsize;
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long mm_rss;
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unsigned long rsslim;
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unsigned long start_code;
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unsigned long end_code;
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unsigned long start_stack;
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unsigned long esp;
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unsigned long eip;
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unsigned long sig_pending;
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unsigned long sig_blocked;
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unsigned long sig_ignored;
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unsigned long sig_handled;
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unsigned long wchan;
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unsigned long zero1;
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unsigned long zero2;
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int exit_signal;
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int task_cpu;
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unsigned int rt_priority;
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unsigned int policy;
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unsigned long long delayacct_blkio_ticks;
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unsigned long gtime;
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long cgtime;
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unsigned long start_data;
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unsigned long end_data;
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unsigned long start_brk;
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unsigned long arg_start;
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unsigned long arg_end;
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unsigned long env_start;
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unsigned long env_end;
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int exit_code;
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};
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#define PROC_CAP_SIZE 2
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struct proc_status_creds {
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unsigned int uids[4];
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unsigned int gids[4];
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u32 cap_inh[PROC_CAP_SIZE];
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u32 cap_prm[PROC_CAP_SIZE];
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u32 cap_eff[PROC_CAP_SIZE];
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u32 cap_bnd[PROC_CAP_SIZE];
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};
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struct mount_info;
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struct fstype {
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char *name;
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int code;
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int (*dump)(struct mount_info *pm);
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int (*restore)(struct mount_info *pm);
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int (*parse)(struct mount_info *pm);
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};
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struct mount_info {
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int mnt_id;
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int parent_mnt_id;
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unsigned int s_dev;
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char *root;
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/*
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* mountpoint contains path with dot at the beginning.
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* It allows to use openat, statat, etc without creating
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* a temporary copy.
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*/
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char *mountpoint;
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unsigned flags;
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int master_id;
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int shared_id;
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struct fstype *fstype;
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char *source;
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char *options;
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bool mounted;
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bool need_plugin;
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int is_file;
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struct mount_info *next;
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/* tree linkage */
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struct mount_info *parent;
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struct mount_info *bind;
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struct list_head children;
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struct list_head siblings;
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struct list_head mnt_bind; /* circular list of derivatives of one real mount */
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struct list_head mnt_share; /* circular list of shared mounts */
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struct list_head mnt_slave_list;/* list of slave mounts */
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struct list_head mnt_slave; /* slave list entry */
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struct mount_info *mnt_master; /* slave is on master->mnt_slave_list */
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struct list_head postpone;
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void *private; /* associated filesystem data */
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};
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extern struct mount_info *mnt_entry_alloc();
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extern void mnt_entry_free(struct mount_info *mi);
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struct vm_area_list;
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extern struct mount_info *parse_mountinfo(pid_t pid);
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extern int parse_pid_stat(pid_t pid, struct proc_pid_stat *s);
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extern int parse_pid_stat_small(pid_t pid, struct proc_pid_stat_small *s);
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extern int parse_smaps(pid_t pid, struct vm_area_list *vma_area_list, bool use_map_files);
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extern int parse_self_maps_lite(struct vm_area_list *vms);
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extern int parse_pid_status(pid_t pid, struct proc_status_creds *);
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union fdinfo_entries {
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EventfdFileEntry efd;
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EventpollTfdEntry epl;
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SignalfdEntry sfd;
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InotifyWdEntry ify;
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FanotifyMarkEntry ffy;
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};
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struct fdinfo_common {
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off64_t pos;
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int flags;
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int mnt_id;
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};
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extern int parse_fdinfo(int fd, int type,
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int (*cb)(union fdinfo_entries *e, void *arg), void *arg);
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extern int parse_fdinfo_pid(int pid, int fd, int type,
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int (*cb)(union fdinfo_entries *e, void *arg), void *arg);
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extern int parse_cpuinfo_features(int (*handler)(char *tok));
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extern int parse_file_locks(void);
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struct pid;
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extern int parse_threads(int pid, struct pid **_t, int *_n);
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#endif /* __CR_PROC_PARSE_H__ */
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