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sadump.c
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sadump.c
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/*
* sadump.h - core analysis suite
*
* Copyright (c) 2011 FUJITSU LIMITED
*
* 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: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
*/
#include "defs.h"
#include "sadump.h"
#include <arpa/inet.h> /* htonl, htons */
#include <elf.h>
#include <inttypes.h>
enum {
failed = -1
};
static struct sadump_data sadump_data = { 0 };
static struct sadump_data *sd = &sadump_data;
static int read_device(void *buf, size_t bytes, ulong *offset);
static int read_dump_header(char *file);
static int add_disk(char *file);
static int open_dump_file(char *file);
static int open_disk(char *file);
static uint64_t paddr_to_pfn(physaddr_t paddr);
static inline int is_set_bit(char *bitmap, uint64_t pfn);
static inline int page_is_ram(uint64_t nr);
static inline int page_is_dumpable(uint64_t nr);
static int lookup_diskset(uint64_t whole_offset, int *diskid, uint64_t *disk_offset);
static struct tm *efi_time_t_to_tm(const efi_time_t *e);
static char * guid_to_str(efi_guid_t *guid, char *buf, size_t buflen);
static int verify_magic_number(uint32_t magicnum[DUMP_PART_HEADER_MAGICNUM_SIZE]);
static ulong per_cpu_ptr(ulong ptr, int cpu);
static ulong early_per_cpu_ptr(char *symbol, struct syment *sym, int cpu);
static ulong legacy_per_cpu_ptr(ulong ptr, int cpu);
static int get_prstatus_from_crash_notes(int cpu, char *prstatus);
static void display_smram_cpu_state(int apicid, struct sadump_smram_cpu_state *s);
static int cpu_to_apicid(int cpu, int *apicid);
static int get_sadump_smram_cpu_state(int cpu, struct sadump_smram_cpu_state *smram);
static int block_table_init(void);
static uint64_t pfn_to_block(uint64_t pfn);
static void mask_reserved_fields(struct sadump_smram_cpu_state *smram);
struct sadump_data *
sadump_get_sadump_data(void)
{
if (!SADUMP_VALID() || !SADUMP_DUMPFILE())
return NULL;
return &sadump_data;
}
int
sadump_cleanup_sadump_data(void)
{
int i;
if (!SADUMP_VALID() || !SADUMP_DUMPFILE())
return FALSE;
if (sd->flags & SADUMP_DISKSET) {
for (i = 1; i < sd->sd_list_len; ++i) {
if (sd->sd_list[i]->dfd)
close(sd->sd_list[i]->dfd);
free(sd->sd_list[i]->header);
free(sd->sd_list[i]);
}
}
close(sd->dfd);
free(sd->header);
free(sd->dump_header);
free(sd->diskset_header);
free(sd->bitmap);
free(sd->dumpable_bitmap);
free(sd->page_buf);
free(sd->block_table);
if (sd->sd_list[0])
free(sd->sd_list[0]);
free(sd->sd_list);
memset(&sadump_data, 0, sizeof(sadump_data));
pc->flags &= ~SADUMP;
pc->dumpfile = NULL;
pc->readmem = NULL;
pc->writemem = NULL;
return TRUE;
}
static int
read_device(void *buf, size_t bytes, ulong *offset)
{
if (lseek(sd->dfd, *offset, SEEK_SET) == failed) {
error(INFO, "sadump: cannot lseek dump device\n");
return FALSE;
}
if (read(sd->dfd, buf, bytes) < bytes) {
error(INFO, "sadump: cannot read dump device\n");
return FALSE;
}
*offset += bytes;
return TRUE;
}
static int
read_dump_header(char *file)
{
struct sadump_part_header *sph = NULL;
struct sadump_header *sh = NULL;
struct sadump_disk_set_header *new, *sdh = NULL;
struct sadump_media_header *smh = NULL;
struct sadump_diskset_data *sd_list_len_0 = NULL;
size_t block_size = SADUMP_DEFAULT_BLOCK_SIZE;
ulong flags = 0;
ulong offset = 0, sub_hdr_offset, data_offset;
uint32_t smram_cpu_state_size = 0;
ulong bitmap_len, dumpable_bitmap_len;
char *bitmap = NULL, *dumpable_bitmap = NULL, *page_buf = NULL;
char guid1[SADUMP_EFI_GUID_TEXT_REPR_LEN+1];
char guid2[SADUMP_EFI_GUID_TEXT_REPR_LEN+1];
sph = malloc(block_size);
if (!sph) {
error(INFO, "sadump: cannot allocate partition header buffer\n");
goto err;
}
sdh = malloc(block_size);
if (!sdh) {
error(INFO, "sadump: cannot allocate disk set header buffer\n");
goto err;
}
sh = malloc(block_size);
if (!sh) {
error(INFO, "sadump: cannot allocate dump header buffer\n");
goto err;
}
smh = malloc(block_size);
if (!smh) {
error(INFO, "sadump: cannot allocate media header buffer\n");
goto err;
}
restart:
if (!read_device(sph, block_size, &offset)) {
error(INFO, "sadump: cannot read partition header\n");
goto err;
}
if (sph->signature1 != SADUMP_SIGNATURE1 ||
sph->signature2 != SADUMP_SIGNATURE2) {
flags |= SADUMP_MEDIA;
if (CRASHDEBUG(1))
error(INFO, "sadump: read dump device as media "
"format\n");
offset = 0;
if (!read_device(smh, block_size, &offset)) {
error(INFO, "sadump: cannot read media header\n");
goto err;
}
if (!read_device(sph, block_size, &offset)) {
error(INFO, "sadump: cannot read partition header\n");
goto err;
}
if (sph->signature1 != SADUMP_SIGNATURE1 ||
sph->signature2 != SADUMP_SIGNATURE2) {
if (CRASHDEBUG(1))
error(INFO, "sadump: does not have partition "
"header\n");
goto err;
}
}
if (!verify_magic_number(sph->magicnum)) {
error(INFO, "sadump: invalid magic number\n");
goto err;
}
if (!(flags & SADUMP_MEDIA) && sph->set_disk_set) {
uint32_t header_blocks;
size_t header_size;
flags |= SADUMP_DISKSET;
if (CRASHDEBUG(1))
error(INFO, "sadump: read dump device as diskset\n");
if (sph->set_disk_set != 1 ||
sph->set_disk_set > SADUMP_MAX_DISK_SET_NUM) {
if (CRASHDEBUG(1))
error(INFO, "sadump: invalid disk set number: "
"%d\n",
sph->set_disk_set);
goto err;
}
if (!read_device(&header_blocks, sizeof(uint32_t), &offset)) {
error(INFO, "sadump: cannot read disk set header "
"size\n");
goto err;
}
offset -= sizeof(uint32_t);
header_size = header_blocks * block_size;
if (header_size > block_size) {
new = realloc(sdh, header_size);
if (!new) {
error(INFO, "sadump: cannot re-allocate disk "
"set buffer\n");
goto err;
}
sdh = new;
}
if (!read_device(sdh, header_size, &offset)) {
error(INFO, "sadump: cannot read disk set header\n");
goto err;
}
}
if (!read_device(sh, block_size, &offset)) {
error(INFO, "sadump: cannot read dump header\n");
goto err;
}
sub_hdr_offset = offset;
if (strncmp(sh->signature, SADUMP_SIGNATURE, 8) != 0) {
if (CRASHDEBUG(1))
error(INFO, "sadump: does not have dump header\n");
goto err;
}
if (flags & SADUMP_MEDIA) {
if (memcmp(&sph->sadump_id, &smh->sadump_id,
sizeof(efi_guid_t)) != 0) {
if (CRASHDEBUG(1))
error(INFO, "sadump: system ID mismatch\n"
" partition header: %s\n"
" media header: %s\n",
guid_to_str(&sph->sadump_id, guid1, sizeof(guid1)),
guid_to_str(&smh->sadump_id, guid2, sizeof(guid2)));
goto err;
}
if (memcmp(&sph->disk_set_id, &smh->disk_set_id,
sizeof(efi_guid_t)) != 0) {
if (CRASHDEBUG(1))
error(INFO, "sadump: disk set ID mismatch\n"
" partition header: %s\n"
" media header: %s\n",
guid_to_str(&sph->disk_set_id, guid1, sizeof(guid1)),
guid_to_str(&smh->disk_set_id, guid2, sizeof(guid2)));
goto err;
}
if (memcmp(&sph->time_stamp, &smh->time_stamp,
sizeof(efi_time_t)) != 0) {
if (CRASHDEBUG(1)) {
error(INFO, "sadump: time stamp mismatch\n");
error(INFO, "sadump: partition header: %s\n",
strip_linefeeds(asctime
(efi_time_t_to_tm
(&sph->time_stamp))));
error(INFO, "sadump: media header: %s\n",
strip_linefeeds(asctime
(efi_time_t_to_tm
(&smh->time_stamp))));
}
}
if (smh->sequential_num != 1) {
error(INFO, "sadump: first media file has sequential "
"number %d\n", smh->sequential_num);
goto err;
}
}
if (sh->block_size != block_size) {
block_size = sh->block_size;
offset = 0;
goto restart;
}
if (CRASHDEBUG(1)) {
if (flags & SADUMP_MEDIA)
error(INFO, "sadump: media backup file\n");
else if (flags & SADUMP_DISKSET)
error(INFO, "sadump: diskset configuration with %d "
"disks\n", sdh->disk_num);
else
error(INFO, "sadump: single partition "
"configuration\n");
}
flags |= SADUMP_LOCAL;
switch (sh->header_version) {
case 0:
sd->max_mapnr = (uint64_t)sh->max_mapnr;
break;
default:
error(WARNING,
"sadump: unsupported header version: %u\n"
"sadump: assuming header version: 1\n",
sh->header_version);
case 1:
sd->max_mapnr = sh->max_mapnr_64;
break;
}
if (sh->sub_hdr_size > 0) {
if (!read_device(&smram_cpu_state_size, sizeof(uint32_t),
&offset)) {
error(INFO,
"sadump: cannot read SMRAM CPU STATE size\n");
goto err;
}
smram_cpu_state_size /= sh->nr_cpus;
offset -= sizeof(uint32_t);
offset += sh->sub_hdr_size * block_size;
}
if (!sh->bitmap_blocks) {
error(INFO, "sadump: bitmap_blocks is zero\n");
goto err;
}
bitmap_len = block_size * sh->bitmap_blocks;
bitmap = calloc(bitmap_len, 1);
if (!bitmap) {
error(INFO, "sadump: cannot allocate memory for bitmap "
"buffer\n");
goto err;
}
if (!read_device(bitmap, bitmap_len, &offset)) {
error(INFO, "sadump: cannot read bitmap\n");
goto err;
}
if (!sh->dumpable_bitmap_blocks) {
error(INFO, "sadump: dumpable_bitmap_blocks is zero\n");
goto err;
}
dumpable_bitmap_len = block_size * sh->dumpable_bitmap_blocks;
dumpable_bitmap = calloc(dumpable_bitmap_len, 1);
if (!dumpable_bitmap) {
error(INFO, "sadump: cannot allocate memory for "
"dumpable_bitmap buffer\n");
goto err;
}
if (!read_device(dumpable_bitmap, dumpable_bitmap_len, &offset)) {
error(INFO, "sadump: cannot read dumpable bitmap\n");
goto err;
}
data_offset = offset;
page_buf = malloc(block_size);
if (!page_buf) {
error(INFO, "sadump: cannot allocate page buffer\n");
goto err;
}
sd->filename = file;
/*
* Switch to zero excluded mode by default on sadump-related
* formats because some Fujitsu troubleshooting software
* assumes the behavior.
*/
sd->flags = flags | SADUMP_ZERO_EXCLUDED;
if (machine_type("X86"))
sd->machine_type = EM_386;
else if (machine_type("X86_64"))
sd->machine_type = EM_X86_64;
else {
error(INFO, "sadump: unsupported machine type: %s\n",
MACHINE_TYPE);
goto err;
}
sd->data_offset = data_offset;
sd->block_size = block_size;
sd->block_shift = ffs(sd->block_size) - 1;
sd->bitmap = bitmap;
sd->dumpable_bitmap = dumpable_bitmap;
sd->sub_hdr_offset = sub_hdr_offset;
sd->smram_cpu_state_size = smram_cpu_state_size;
sd->header = sph;
sd->dump_header = sh;
if (flags & SADUMP_DISKSET)
sd->diskset_header = sdh;
if (flags & SADUMP_MEDIA)
sd->media_header = smh;
sd->page_buf = page_buf;
if (flags & SADUMP_DISKSET) {
sd_list_len_0 = malloc(sizeof(struct sadump_diskset_data));
if (!sd_list_len_0) {
error(INFO,
"sadump: cannot allocate diskset data buffer\n");
goto err;
}
sd_list_len_0->filename = sd->filename;
sd_list_len_0->dfd = sd->dfd;
sd_list_len_0->header = sd->header;
sd_list_len_0->data_offset = sd->data_offset;
sd->sd_list = malloc(sizeof(struct sadump_diskset_data *));
if (!sd->sd_list) {
error(INFO,
"sadump: cannot allocate diskset list buffer\n");
goto err;
}
sd->sd_list_len = 1;
sd->sd_list[0] = sd_list_len_0;
}
if (!block_table_init()) {
error(INFO, "sadump: cannot initialize block hash table\n");
goto err;
}
if (!(flags & SADUMP_DISKSET))
free(sdh);
if (!(flags & SADUMP_MEDIA))
free(smh);
return TRUE;
err:
close(sd->dfd);
free(sph);
free(sdh);
free(sh);
free(smh);
free(bitmap);
free(dumpable_bitmap);
free(page_buf);
free(sd_list_len_0);
free(sd->sd_list);
return FALSE;
}
static int
add_disk(char *file)
{
struct sadump_part_header *ph;
struct sadump_diskset_data *this_disk;
int diskid;
char guid1[SADUMP_EFI_GUID_TEXT_REPR_LEN+1];
char guid2[SADUMP_EFI_GUID_TEXT_REPR_LEN+1];
diskid = sd->sd_list_len - 1;
this_disk = sd->sd_list[diskid];
if (CRASHDEBUG(1))
error(INFO, "sadump: add disk #%d\n", diskid+1);
ph = malloc(sd->block_size);
if (!ph) {
error(INFO, "sadump: cannot malloc block_size buffer\n");
return FALSE;
}
if (lseek(this_disk->dfd, 0, SEEK_SET) == failed) {
error(INFO, "sadump: cannot lseek dump partition header\n");
free(ph);
return FALSE;
}
if (read(this_disk->dfd, ph, sd->block_size) < sd->block_size) {
error(INFO, "sadump: cannot read dump partition header\n");
free(ph);
return FALSE;
}
if (ph->signature1 != SADUMP_SIGNATURE1 ||
ph->signature2 != SADUMP_SIGNATURE2) {
if (CRASHDEBUG(1))
error(INFO, "sadump: does not have partition header\n");
free(ph);
return FALSE;
}
if (memcmp(&sd->header->sadump_id, &ph->sadump_id,
sizeof(efi_guid_t)) != 0) {
if (CRASHDEBUG(1))
error(INFO, "sadump: system ID mismatch\n"
" partition header on disk #1: %s\n"
" partition header on disk #%d: %s\n",
guid_to_str(&sd->header->sadump_id, guid1,
sizeof(guid1)),
diskid+1,
guid_to_str(&ph->sadump_id, guid2,
sizeof(guid2)));
free(ph);
return FALSE;
}
if (memcmp(&sd->header->disk_set_id, &ph->disk_set_id, sizeof(efi_guid_t)) != 0) {
if (CRASHDEBUG(1))
error(INFO, "sadump: disk set ID mismatch\n"
" partition header on disk #1: %s\n"
" partition header on disk #%d: %s\n",
guid_to_str(&sd->header->disk_set_id, guid1,
sizeof(guid1)),
diskid+1,
guid_to_str(&ph->disk_set_id, guid2,
sizeof(guid2)));
free(ph);
return FALSE;
}
if (memcmp(&sd->diskset_header->vol_info[diskid - 1].id, &ph->vol_id,
sizeof(efi_guid_t)) != 0) {
if (CRASHDEBUG(1))
error(INFO, "sadump: volume ID mismatch\n"
" disk set header on disk #1: %s\n"
" partition header on disk #%d: %s\n",
guid_to_str(&sd->diskset_header->vol_info[diskid-1].id,
guid1, sizeof(guid1)),
diskid+1,
guid_to_str(&ph->vol_id, guid2, sizeof(guid2)));
free(ph);
return FALSE;
}
if (memcmp(&sd->header->time_stamp, &ph->time_stamp,
sizeof(efi_time_t)) != 0) {
if (CRASHDEBUG(1)) {
error(INFO, "sadump: time stamp mismatch\n");
error(INFO,
"sadump: partition header on disk #1: %s\n",
strip_linefeeds(asctime
(efi_time_t_to_tm
(&sd->header->time_stamp))));
error(INFO,
"sadump: partition header on disk #%d: %s\n",
diskid+1,
strip_linefeeds(asctime
(efi_time_t_to_tm
(&ph->time_stamp))));
}
}
if (diskid != ph->set_disk_set - 1) {
if (CRASHDEBUG(1))
error(INFO, "sadump: wrong disk order; "
"#%d expected but #%d given\n",
diskid+1, ph->set_disk_set);
free(ph);
return FALSE;
}
this_disk->header = ph;
this_disk->data_offset = sd->block_size;
this_disk->filename = file;
return TRUE;
}
static int
open_dump_file(char *file)
{
int fd;
fd = open(file, O_RDONLY);
if (fd < 0) {
error(INFO, "sadump: unable to open dump file %s", file);
return FALSE;
}
sd->dfd = fd;
return TRUE;
}
static int
open_disk(char *file)
{
struct sadump_diskset_data *this_disk;
sd->sd_list_len++;
if (CRASHDEBUG(1))
error(INFO, "sadump: open disk #%d\n", sd->sd_list_len);
if (sd->sd_list_len > sd->diskset_header->disk_num) {
error(INFO, "sadump: too many diskset arguments; "
"this diskset consists of %d disks\n",
sd->diskset_header->disk_num);
return FALSE;
}
sd->sd_list = realloc(sd->sd_list,
sd->sd_list_len *
sizeof(struct sadump_diskset_data *));
if (!sd->sd_list) {
if (CRASHDEBUG(1)) {
error(INFO, "sadump: cannot malloc diskset list buffer\n");
}
return FALSE;
}
this_disk = malloc(sizeof(struct sadump_diskset_data));
if (!this_disk) {
if (CRASHDEBUG(1)) {
error(INFO, "sadump: cannot malloc diskset data buffer\n");
}
return FALSE;
}
memset(this_disk, 0, sizeof(*this_disk));
sd->sd_list[sd->sd_list_len - 1] = this_disk;
this_disk->dfd = open(file, O_RDONLY);
if (!this_disk->dfd) {
free(this_disk);
error(INFO, "sadump: unable to open dump file %s", file);
return FALSE;
}
return TRUE;
}
int is_sadump(char *file)
{
if (SADUMP_VALID()) {
if (!(sd->flags & SADUMP_DISKSET)) {
if (CRASHDEBUG(1))
error(INFO, "sadump: does not support multiple"
" file formats\n");
(void) sadump_cleanup_sadump_data();
return FALSE;
}
if (!open_disk(file) || !add_disk(file)) {
(void) sadump_cleanup_sadump_data();
return FALSE;
}
return TRUE;
}
if (!open_dump_file(file) || !read_dump_header(file))
return FALSE;
return TRUE;
}
int sadump_is_diskset(void)
{
if (!SADUMP_VALID())
return FALSE;
return !!(sd->flags & SADUMP_DISKSET);
}
uint sadump_page_size(void)
{
return sd->dump_header->block_size;
}
/*
* Translate physical address in paddr to PFN number. This means normally that
* we just shift paddr by some constant.
*/
static uint64_t
paddr_to_pfn(physaddr_t paddr)
{
return paddr >> sd->block_shift;
}
static inline int
is_set_bit(char *bitmap, uint64_t pfn)
{
ulong index, bit;
index = pfn >> 3;
bit = 7 - (pfn & 7);
return !!(bitmap[index] & (1UL << bit));
}
static inline int
page_is_ram(uint64_t nr)
{
return is_set_bit(sd->bitmap, nr);
}
static inline int
page_is_dumpable(uint64_t nr)
{
return is_set_bit(sd->dumpable_bitmap, nr);
}
static int
lookup_diskset(uint64_t whole_offset, int *diskid, uint64_t *disk_offset)
{
uint64_t offset = whole_offset;
int i;
for (i = 0; i < sd->sd_list_len; ++i) {
uint64_t used_device_i, ram_size;
ulong data_offset_i;
used_device_i = sd->sd_list[i]->header->used_device;
data_offset_i = sd->sd_list[i]->data_offset;
ram_size = used_device_i - data_offset_i;
if (offset < ram_size)
break;
offset -= ram_size;
}
if (i == sd->sd_list_len)
return FALSE;
*diskid = i;
*disk_offset = offset;
return TRUE;
}
int read_sadump(int fd, void *bufptr, int cnt, ulong addr, physaddr_t paddr)
{
physaddr_t curpaddr ATTRIBUTE_UNUSED;
uint64_t pfn, whole_offset, perdisk_offset, block;
ulong page_offset;
int dfd;
if (sd->flags & SADUMP_KDUMP_BACKUP &&
paddr >= sd->backup_src_start &&
paddr < sd->backup_src_start + sd->backup_src_size) {
ulong orig_paddr;
orig_paddr = paddr;
paddr += sd->backup_offset - sd->backup_src_start;
if (CRASHDEBUG(1))
error(INFO, "sadump: kdump backup region: %#llx => %#llx\n",
orig_paddr, paddr);
}
pfn = paddr_to_pfn(paddr);
curpaddr = paddr & ~((physaddr_t)(sd->block_size-1));
page_offset = paddr & ((physaddr_t)(sd->block_size-1));
if ((pfn >= sd->max_mapnr) || !page_is_ram(pfn))
return SEEK_ERROR;
if (!page_is_dumpable(pfn)) {
if (!(sd->flags & SADUMP_ZERO_EXCLUDED))
return PAGE_EXCLUDED;
memset(bufptr, 0, cnt);
return cnt;
}
block = pfn_to_block(pfn);
whole_offset = block * sd->block_size;
if (sd->flags & SADUMP_DISKSET) {
int diskid;
if (!lookup_diskset(whole_offset, &diskid, &perdisk_offset))
return SEEK_ERROR;
dfd = sd->sd_list[diskid]->dfd;
perdisk_offset += sd->sd_list[diskid]->data_offset;
} else {
dfd = sd->dfd;
perdisk_offset = whole_offset + sd->data_offset;
}
if (lseek(dfd, perdisk_offset, SEEK_SET) == failed)
return SEEK_ERROR;
if (read(dfd, sd->page_buf, sd->block_size) != sd->block_size)
return READ_ERROR;
memcpy(bufptr, sd->page_buf + page_offset, cnt);
return cnt;
}
int write_sadump(int fd, void *bufptr, int cnt, ulong addr, physaddr_t paddr)
{
return 0;
}
int sadump_init(char *unused, FILE *fptr)
{
if (!SADUMP_VALID())
return FALSE;
return TRUE;
}
ulong get_sadump_panic_task(void)
{
return NO_TASK;
}
ulong get_sadump_switch_stack(ulong task)
{
return 0;
}
static struct tm *
efi_time_t_to_tm(const efi_time_t *e)
{
static struct tm t;
time_t ti;
memset(&t, 0, sizeof(t));
t.tm_sec = e->second;
t.tm_min = e->minute;
t.tm_hour = e->hour;
t.tm_mday = e->day;
t.tm_mon = e->month - 1;
t.tm_year = e->year - 1900;
if (e->timezone != EFI_UNSPECIFIED_TIMEZONE)
t.tm_hour += e->timezone;
else if (CRASHDEBUG(1))
error(INFO, "sadump: timezone information is missing\n");
ti = mktime(&t);
if (ti == (time_t)-1)
return &t;
return localtime_r(&ti, &t);
}
static char *
guid_to_str(efi_guid_t *guid, char *buf, size_t buflen)
{
snprintf(buf, buflen,
"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
htonl(guid->data1), htons(guid->data2), htons(guid->data3),
guid->data4[0], guid->data4[1], guid->data4[2],
guid->data4[3], guid->data4[4], guid->data4[5],
guid->data4[6], guid->data4[7]);
return buf;
}
static int
verify_magic_number(uint32_t magicnum[DUMP_PART_HEADER_MAGICNUM_SIZE])
{
int i;
for (i = 1; i < DUMP_PART_HEADER_MAGICNUM_SIZE; ++i)
if (magicnum[i] != (magicnum[i - 1] + 7) * 11)
return FALSE;
return TRUE;
}
int sadump_memory_used(void)
{
return 0;
}
int sadump_free_memory(void)
{
return 0;
}
/*
* This function is dump-type independent, and could be used to dump
* the diskdump_data structure contents and perhaps the sadump header
* data.
*/
int sadump_memory_dump(FILE *fp)
{
struct sadump_part_header *sph;
struct sadump_disk_set_header *sdh;
struct sadump_header *sh;
struct sadump_media_header *smh;
int i, others;
char guid[SADUMP_EFI_GUID_TEXT_REPR_LEN+1];
fprintf(fp, "sadump_data: \n");
fprintf(fp, " filename: %s\n", sd->filename);
fprintf(fp, " flags: %lx (", sd->flags);
others = 0;
if (sd->flags & SADUMP_LOCAL)
fprintf(fp, "%sSADUMP_LOCAL", others++ ? "|" : "");
if (sd->flags & SADUMP_DISKSET)
fprintf(fp, "%sSADUMP_DISKSET", others++ ? "|" : "");
if (sd->flags & SADUMP_MEDIA)
fprintf(fp, "%sSADUMP_MEDIA", others++ ? "|" : "");
if (sd->flags & SADUMP_ZERO_EXCLUDED)
fprintf(fp, "%sSADUMP_ZERO_EXCLUDED", others++ ? "|" : "");
if (sd->flags & SADUMP_KDUMP_BACKUP)
fprintf(fp, "%sSADUMP_KDUMP_BACKUP", others++ ? "|" : "");
fprintf(fp, ") \n");
fprintf(fp, " dfd: %d\n", sd->dfd);
fprintf(fp, " machine_type: %d ", sd->machine_type);
switch (sd->machine_type)
{
case EM_386:
fprintf(fp, "(EM_386)\n"); break;
case EM_X86_64:
fprintf(fp, "(EM_X86_64)\n"); break;
default:
fprintf(fp, "(unknown)\n"); break;
}
fprintf(fp, "\n header: %lx\n", (ulong)sd->header);
sph = sd->header;
fprintf(fp, " signature1: %x\n", sph->signature1);
fprintf(fp, " signature2: %x\n", sph->signature2);
fprintf(fp, " enable: %u\n", sph->enable);
fprintf(fp, " reboot: %u\n", sph->reboot);
fprintf(fp, " compress: %u\n", sph->compress);
fprintf(fp, " recycle: %u\n", sph->recycle);
fprintf(fp, " label: (unused)\n");
fprintf(fp, " sadump_id: %s\n", guid_to_str(&sph->sadump_id, guid, sizeof(guid)));
fprintf(fp, " disk_set_id: %s\n", guid_to_str(&sph->disk_set_id, guid, sizeof(guid)));
fprintf(fp, " vol_id: %s\n", guid_to_str(&sph->vol_id, guid, sizeof(guid)));
fprintf(fp, " time_stamp: %s\n",
strip_linefeeds(asctime(efi_time_t_to_tm(&sph->time_stamp))));
fprintf(fp, " set_disk_set: %u\n", sph->set_disk_set);
fprintf(fp, " reserve: %u\n", sph->reserve);
fprintf(fp, " used_device: %llu\n", (ulonglong)sph->used_device);
fprintf(fp, " magicnum: %s\n",
verify_magic_number(sph->magicnum)
? "(valid)" : "(invalid)");
fprintf(fp, "\n dump header: %lx\n", (ulong)sd->dump_header);
sh = sd->dump_header;
fprintf(fp, " signature: %s\n", sh->signature);
fprintf(fp, " header_version: %u\n", sh->header_version);
fprintf(fp, " reserve: %u\n", sh->reserve);
fprintf(fp, " timestamp: %s\n",
strip_linefeeds(asctime(efi_time_t_to_tm(&sh->timestamp))));
fprintf(fp, " status: %u\n", sh->status);
fprintf(fp, " compress: %u\n", sh->compress);
fprintf(fp, " block_size: %u\n", sh->block_size);
fprintf(fp, " extra_hdr_size: %u\n", sh->extra_hdr_size);
fprintf(fp, " sub_hdr_size: %u\n", sh->sub_hdr_size);
fprintf(fp, " bitmap_blocks: %u\n", sh->bitmap_blocks);
fprintf(fp, "dumpable_bitmap_blocks: %u\n", sh->dumpable_bitmap_blocks);
fprintf(fp, " max_mapnr: %u\n", sh->max_mapnr);
fprintf(fp, " total_ram_blocks: %u\n", sh->total_ram_blocks);
fprintf(fp, " device_blocks: %u\n", sh->device_blocks);
fprintf(fp, " written_blocks: %u\n", sh->written_blocks);
fprintf(fp, " current_cpu: %u\n", sh->current_cpu);
fprintf(fp, " nr_cpus: %u\n", sh->nr_cpus);