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https://github.com/checkpoint-restore/criu.git
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6ed19e31a7
VMA-s may be protected against read, so rights for such VMA-s should be changed for dumping and protected back after dumping. Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
146 lines
2.5 KiB
C
146 lines
2.5 KiB
C
#ifndef __CR_PARASITE_H__
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#define __CR_PARASITE_H__
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#define PARASITE_STACK_SIZE (16 << 10)
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#define PARASITE_ARG_SIZE_MIN ( 1 << 12)
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#define PARASITE_MAX_SIZE (64 << 10)
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#ifndef __ASSEMBLY__
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#include <sys/un.h>
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#include "image.h"
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#include "util-net.h"
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#include "protobuf/vma.pb-c.h"
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#define __head __used __section(.head.text)
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enum {
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PARASITE_CMD_INIT,
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PARASITE_CMD_INIT_THREAD,
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PARASITE_CMD_CFG_LOG,
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PARASITE_CMD_FINI,
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PARASITE_CMD_FINI_THREAD,
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PARASITE_CMD_MPROTECT_VMAS,
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PARASITE_CMD_DUMPPAGES,
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PARASITE_CMD_DUMP_SIGACTS,
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PARASITE_CMD_DUMP_ITIMERS,
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PARASITE_CMD_DUMP_MISC,
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PARASITE_CMD_DUMP_CREDS,
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PARASITE_CMD_DUMP_THREAD,
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PARASITE_CMD_DRAIN_FDS,
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PARASITE_CMD_GET_PROC_FD,
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PARASITE_CMD_DUMP_TTY,
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PARASITE_CMD_MAX,
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};
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struct parasite_init_args {
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int h_addr_len;
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struct sockaddr_un h_addr;
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int p_addr_len;
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struct sockaddr_un p_addr;
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int nr_threads;
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};
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struct parasite_log_args {
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int log_level;
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};
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struct parasite_vma_entry
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{
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unsigned long start;
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unsigned long len;
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int prot;
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};
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struct parasite_mprotect_args
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{
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unsigned int nr;
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struct parasite_vma_entry vmas[0];
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};
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struct parasite_dump_pages_args {
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unsigned int off;
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unsigned int nr;
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unsigned int nr_pages;
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struct iovec iovs[0];
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};
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struct parasite_dump_sa_args {
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rt_sigaction_t sas[SIGMAX];
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};
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struct parasite_dump_itimers_args {
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struct itimerval real;
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struct itimerval virt;
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struct itimerval prof;
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};
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/*
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* Misc sfuff, that is too small for separate file, but cannot
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* be read w/o using parasite
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*/
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struct parasite_dump_misc {
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unsigned long brk;
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k_rtsigset_t blocked;
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u32 pid;
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u32 sid;
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u32 pgid;
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u32 tls;
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u32 umask;
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};
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#define PARASITE_MAX_GROUPS (PAGE_SIZE / sizeof(unsigned int) - 2 * sizeof(unsigned))
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struct parasite_dump_creds {
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unsigned int secbits;
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unsigned int ngroups;
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unsigned int groups[PARASITE_MAX_GROUPS];
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};
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struct parasite_dump_thread {
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unsigned int *tid_addr;
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pid_t tid;
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k_rtsigset_t blocked;
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u32 tls;
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};
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#define PARASITE_MAX_FDS (PAGE_SIZE / sizeof(int))
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struct parasite_drain_fd {
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int nr_fds;
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int fds[PARASITE_MAX_FDS];
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};
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static inline int drain_fds_size(struct parasite_drain_fd *dfds)
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{
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return sizeof(dfds->nr_fds) + dfds->nr_fds * sizeof(dfds->fds[0]);
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}
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struct parasite_tty_args {
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int fd;
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int sid;
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int pgrp;
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bool hangup;
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int st_pckt;
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int st_lock;
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int st_excl;
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};
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/* the parasite prefix is added by gen_offsets.sh */
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#define parasite_sym(pblob, name) ((void *)(pblob) + parasite_blob_offset__##name)
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#endif /* !__ASSEMBLY__ */
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#endif /* __CR_PARASITE_H__ */
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