/* netdump.h

 *

 * Copyright (C) 2002-2009, 2017-2018 David Anderson

 * Copyright (C) 2002-2009, 2017-2018 Red Hat, Inc. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 *

 * Author: David Anderson

 */

#include <elf.h>

#include "vmcore.h"

#define MIN_NETDUMP_ELF32_HEADER_SIZE \

        sizeof(Elf32_Ehdr)+sizeof(Elf32_Phdr)+sizeof(Elf32_Phdr)

#define MIN_NETDUMP_ELF64_HEADER_SIZE \

        sizeof(Elf64_Ehdr)+sizeof(Elf64_Phdr)+sizeof(Elf64_Phdr)

#define MIN_NETDUMP_ELF_HEADER_SIZE \

        MAX(MIN_NETDUMP_ELF32_HEADER_SIZE, MIN_NETDUMP_ELF64_HEADER_SIZE)

#define NETDUMP_ELF_HEADER_SPARE_SIZE 128

/*

 * "Safe" size, as in covering the ELF header and the first two program headers

 * plus any "padding" in-between, like section headers.

 */

#define SAFE_NETDUMP_ELF_HEADER_SIZE \

	(MIN_NETDUMP_ELF_HEADER_SIZE+NETDUMP_ELF_HEADER_SPARE_SIZE)

#define NT_TASKSTRUCT 4

#define NT_DISKDUMP   0x70000001

#ifdef NOTDEF

/*

 *  Note: Based upon the original, abandoned, proposal for

 *  its contents -- keep around for potential future use.

 */

#ifndef NT_KDUMPINFO

#define NT_KDUMPINFO 7

#endif

#endif  /* NOTDEF */

struct pt_load_segment {

	off_t file_offset;

	physaddr_t phys_start;

	physaddr_t phys_end;

	physaddr_t zero_fill;

};

struct vmcore_data {

	ulong flags;

	int ndfd;

	FILE *ofp;

	uint header_size;

	char *elf_header;

	uint num_pt_load_segments;

	struct pt_load_segment *pt_load_segments;

        Elf32_Ehdr *elf32;

        Elf32_Phdr *notes32;

        Elf32_Phdr *load32;

        Elf64_Ehdr *elf64;

        Elf64_Phdr *notes64;

        Elf64_Phdr *load64;

        Elf64_Shdr *sect0_64;

        void *nt_prstatus;

        void *nt_prpsinfo;

        void *nt_taskstruct;

	ulong task_struct;

	uint page_size;

	ulong switch_stack;

	uint num_prstatus_notes;

	void *nt_prstatus_percpu[NR_CPUS];

	void *vmcoreinfo;

	uint size_vmcoreinfo;

/* Backup Region, first 640K of System RAM. */

#define KEXEC_BACKUP_SRC_END	0x0009ffff

	uint num_qemu_notes;

	void *nt_qemu_percpu[NR_CPUS];

	ulonglong backup_src_start;

	ulong backup_src_size;

	ulonglong backup_offset;

	ulong arch_data;

#define arch_data1 arch_data

	ulong phys_base;

	ulong arch_data2;

	void *nt_vmcoredd_array[NR_DEVICE_DUMPS];

	uint  num_vmcoredd_notes;

};

#define DUMP_ELF_INCOMPLETE  0x1   /* dumpfile is incomplete */

/*

 * S390 CPU timer ELF note

 */

#ifndef NT_S390_TIMER

#define NT_S390_TIMER 0x301

#endif

/*

 * S390 TOD clock comparator ELF note

 */

#ifndef NT_S390_TODCMP

#define NT_S390_TODCMP 0x302

#endif

/*

 * S390 TOD programmable register ELF note

 */

#ifndef NT_S390_TODPREG

#define NT_S390_TODPREG 0x303

#endif

/*

 * S390 control registers ELF note

 */

#ifndef NT_S390_CTRS

#define NT_S390_CTRS 0x304

#endif

/*

 * S390 prefix ELF note

 */

#ifndef NT_S390_PREFIX

#define NT_S390_PREFIX 0x305

#endif

/*

 * S390 vector registers 0-15 upper half note (16 * u64)

 */

#ifndef NT_S390_VXRS_LOW

#define NT_S390_VXRS_LOW 0x309

#endif

/*

 * S390 vector registers 16-31 note (16 * u128)

 */

#ifndef NT_S390_VXRS_HIGH

#define NT_S390_VXRS_HIGH 0x30a

#endif

#define MAX_KCORE_ELF_HEADER_SIZE (32768)

struct proc_kcore_data {

	uint flags;

	uint segments;

	char *elf_header;

	size_t header_size;

	Elf64_Phdr *load64;

	Elf64_Phdr *notes64;

	Elf32_Phdr *load32;

	Elf32_Phdr *notes32;

	void *vmcoreinfo;

	uint size_vmcoreinfo;

};