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https://github.com/checkpoint-restore/criu.git
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5c171b1385
It will be used for dumping zombies. v2: Add a fast path, if /proc belongs to the target pipns. it's usually for CT. Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
108 lines
2.1 KiB
C
108 lines
2.1 KiB
C
#ifndef CR_PARASITE_H_
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#define CR_PARASITE_H_
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#define PARASITE_STACK_SIZE 2048
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#define PARASITE_ARG_SIZE 8196
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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_SET_LOGFD,
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PARASITE_CMD_FINI,
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PARASITE_CMD_DUMPPAGES_INIT,
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PARASITE_CMD_DUMPPAGES,
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PARASITE_CMD_DUMPPAGES_FINI,
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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_TID_ADDR,
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PARASITE_CMD_DRAIN_FDS,
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PARASITE_CMD_GET_PROC_FD,
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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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};
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struct parasite_dump_pages_args {
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VmaEntry vma_entry;
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unsigned long nrpages_dumped; /* how many pages are dumped */
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unsigned long nrpages_skipped;
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unsigned long nrpages_total;
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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 int secbits;
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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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};
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struct parasite_dump_tid_info {
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unsigned int *tid_addr;
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int tid;
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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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/*
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* Some useful offsets
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*/
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#define PARASITE_ARGS_ADDR(start) \
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((start) + parasite_blob_offset____export_parasite_args)
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#define PARASITE_CMD_ADDR(start) \
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((start) + parasite_blob_offset____export_parasite_cmd)
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#define PARASITE_HEAD_ADDR(start) \
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((start) + parasite_blob_offset____export_parasite_head_start)
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#endif /* !__ASSEMBLY__ */
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#endif /* CR_PARASITE_H_ */
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