/usr/src/blcr-0.8.5/include/blcr_ioctl.h is in blcr-dkms 0.8.5-2.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | /*
* Berkeley Lab Checkpoint/Restart (BLCR) for Linux is Copyright (c)
* 2003, The Regents of the University of California, through Lawrence
* Berkeley National Laboratory (subject to receipt of any required
* approvals from the U.S. Dept. of Energy). All rights reserved.
*
* Portions may be copyrighted by others, as may be noted in specific
* copyright notices within specific files.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: blcr_ioctl.h,v 1.38 2008/08/16 00:17:11 phargrov Exp $
*/
#ifndef _CR_IOCTL_H
#define _CR_IOCTL_H 1
#define CR_IOCTL_BASE 0xA1
//
// ioctl()s for libcr/callback code:
//
// CR_OP_HAND_CHKPT(unsigned long flags)
// Called from libcr when the callbacks have run their CHECKPOINT
// code and the thread is prepared for the kernel to save it.
#define CR_OP_HAND_CHKPT _IOW (CR_IOCTL_BASE, 0x01, unsigned long)
// CR_OP_HAND_ABORT(unsigned long flags)
// Called from libcr when a callback wishes to abort the checkpoint/restart.
// If flags is set to CR_CHECKPOINT_PERM_FAILURE, all processes in the
// checkpoint are killed.
#define CR_OP_HAND_ABORT _IOW (CR_IOCTL_BASE, 0x02, unsigned long)
// 0x03 was CR_OP_HAND_CONT
// 0x04 was CR_OP_HAND_RSTRT
// CR_OP_HAND_PHASE1(long fd)
// This is how a Phase1 thread/task announces itself to the kernel.
#define CR_OP_HAND_PHASE1 _IOW (CR_IOCTL_BASE, 0x05, long)
// CR_OP_HAND_SUSP(struct timeval * timeout)
// Block in the kernel until one of the following three things happens:
// 1) A checkpoint request arrives for this thread.
// 2) A signal arrives for this thread.
// 3) The timeout expires.
// The timeout argument works exactly as in select(2).
#define CR_OP_HAND_SUSP _IOWR(CR_IOCTL_BASE, 0x06, struct timeval *)
// CR_OP_HAND_PHASE2(long fd)
// This is how a Phase2 thread/task announces itself to the kernel.
#define CR_OP_HAND_PHASE2 _IOW (CR_IOCTL_BASE, 0x07, long)
// CR_OP_HAND_DONE(unsigned long flags)
// Called from libcr when the callbacks have run to completion
// and the thread is just about to resume execution
// (returning from the signal handler or from cr_leave_cs).
// This is the chance for the kernel to SIGSTOP us if we are to
// be placed in a STOPPED state.
#define CR_OP_HAND_DONE _IOW (CR_IOCTL_BASE, 0x08, unsigned long)
// CR_OP_HAND_SRC(char *buffer)
// This is how libcr queries the restart source.
// The argument is a buffer of len >= PATH_MAX
// The result is a string:
// Empty if the source is not in the file system
// Full path if source is a file, device, fifo, etc.
// Path ending in "/." if source is a directory.
#define CR_OP_HAND_SRC _IOR (CR_IOCTL_BASE, 0x09, char *)
// CR_OP_HAND_CHKPT_INFO(struct cr_chkpt_info *)
// This is how cr_get_checkpoint_info() is implemented.
#define CR_OP_HAND_CHKPT_INFO _IOR (CR_IOCTL_BASE, 0x0a, struct cr_chkpt_info *)
//
// ioctl()s for cr_checkpoint:
//
// CR_OP_CHKPT_REQ(struct cr_chkpt_args *args)
// Called to request a checkpoint of a task/proc/pgrp/session.
#define CR_OP_CHKPT_REQ _IOW (CR_IOCTL_BASE, 0x10, struct cr_chkpt_args *)
// 0x11 was CR_OP_CHKPT_DONE
// CR_OP_CHKPT_REAP(void)
// Called to reap a completed checkpoint.
// This is necessary if you wish to issue a new request on the same
// file descriptor, and is recommended as a polite way to cleanup.
// However, closing the fd (or exiting) will do this implicitly.
#define CR_OP_CHKPT_REAP _IO (CR_IOCTL_BASE, 0x12)
// CR_OP_CHKPT_FWD(struct cr_fwd_args *args)
// Called to propagate a checkpoint request to another process.
#define CR_OP_CHKPT_FWD _IOW (CR_IOCTL_BASE, 0x13, struct cr_fwd_args *)
// CR_OP_CHKPT_LOG(struct cr_log_args *args)
// Called to collect error/warning log from a completed checkpoint.
// arg.buf is the space allocated for the result
// arg.len is the length of buf
// Return value is value of arg.len required to receive full log.
// arg.buf is always nul-terminated if return >= 0.
#define CR_OP_CHKPT_LOG _IOR (CR_IOCTL_BASE, 0x14, struct cr_log_args *)
//
// ioctl()s for cr_restart:
//
// CR_OP_RSTRT_REQ(struct cr_rstrt_args *args)
// Called to request a restart from a given file descriptor.
#define CR_OP_RSTRT_REQ _IOW (CR_IOCTL_BASE, 0x20,\
struct cr_rstrt_args *)
// 0x21 was CR_OP_RSTRT_DONE
// CR_OP_RSTRT_REAP(void)
// Called to reap a completed restart.
// This is necessary if you wish to issue a new request on the same
// file descriptor, and is recommended as a polite way to cleanup.
// However, closing the fd (or exiting) will do this implicitly.
#define CR_OP_RSTRT_REAP _IO (CR_IOCTL_BASE, 0x22)
// CR_OP_RSTRT_CHILD(void)
// Called to overlay a process with a restart image.
// Acts like exec(). Will not return unless there has been an error.
#define CR_OP_RSTRT_CHILD _IO (CR_IOCTL_BASE, 0x23)
// 0x24 : was OP_RSTRT_CLONES
// 0x25 : was OP_RSTRT_FORKS
// CR_OP_RSTRT_PROCS(struct cr_procs_tbl **)
// Called to determine if more processes are needed.
// Returns 0 if done, positive if not, or negative on error.
// Stores info on needed procs to supplied address.
#define CR_OP_RSTRT_PROCS _IOR (CR_IOCTL_BASE, 0x26,\
struct cr_procs_tbl *)
// CR_OP_RSTRT_LOG(struct cr_log_args *args)
// Called to collect error/warning log from a completed restart.
// arg.buf is the space allocated for the result
// arg.len is the length of buf
// Return value is value of arg.len required to receive full log.
// arg.buf is always nul-terminated if return >= 0.
#define CR_OP_RSTRT_LOG _IOR (CR_IOCTL_BASE, 0x27, struct cr_log_args *)
//
// ioctl()s for general use:
//
// CR_OP_VERSION(unsigned long version)
// Called to verify the kernel supports the specified version
// where version = (CR_MODULE_MAJOR << 16) | CR_MODULE_MINOR
// Return of 0 is success, meaning we support that version.
#define CR_OP_VERSION _IOW (CR_IOCTL_BASE, 0x30, unsigned long)
#endif
|