Merge dump-journal and dump-meta into the new "vitastor-disk" tool
parent
8800afb649
commit
b0e86ca643
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// Copyright (c) Vitaliy Filippov, 2019+
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// License: VNPL-1.1 (see README.md for details)
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#define _LARGEFILE64_SOURCE
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <malloc.h>
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#include <linux/fs.h>
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#include <string.h>
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#include <errno.h>
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#include <assert.h>
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#include <stdio.h>
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#include "blockstore_impl.h"
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#include "osd_id.h"
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#include "crc32c.h"
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#include "rw_blocking.h"
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struct meta_tool_t
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{
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std::map<std::string, std::string> options;
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char *journal_device;
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uint32_t journal_block_size;
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uint64_t journal_offset;
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uint64_t journal_len;
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uint64_t journal_pos;
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bool all;
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char *meta_device;
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uint32_t meta_block_size;
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uint64_t meta_offset;
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uint64_t meta_len;
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uint64_t meta_pos;
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char *data_device;
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uint64_t data_offset;
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uint64_t data_len;
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int journal_fd;
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int meta_fd;
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bool started;
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uint32_t crc32_last;
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int dump_journal();
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int dump_journal_block(void *buf);
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int dump_meta();
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};
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int main(int argc, char *argv[])
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{
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meta_tool_t self = {};
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std::vector<char*> cmd;
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char *exe_name = strrchr(argv[0], '/');
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exe_name = exe_name ? exe_name+1 : argv[0];
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bool aliased = false;
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if (!strcmp(exe_name, "vitastor-dump-journal"))
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{
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cmd.push_back((char*)"dump-journal");
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aliased = true;
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}
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for (int i = 1; i < argc; i++)
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{
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if (!strcmp(argv[i], "--all"))
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{
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self.all = true;
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}
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else if (!strcmp(argv[i], "--help"))
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{
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cmd.clear();
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cmd.push_back((char*)"help");
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}
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else if (argv[i][0] == '-' && argv[i][1] == '-')
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{
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char *key = argv[i];
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self.options[key] = argv[++i];
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}
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else
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{
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cmd.push_back(argv[i]);
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}
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}
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if (cmd.size() && !strcmp(cmd[0], "dump-journal"))
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{
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if (cmd.size() < 5)
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{
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printf("USAGE: %s%s [--all] <journal_file> <journal_block_size> <offset> <size>\n", argv[0], aliased ? "" : " dump-journal");
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return 1;
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}
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self.journal_device = cmd[1];
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self.journal_block_size = strtoul(cmd[2], NULL, 10);
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self.journal_offset = strtoull(cmd[3], NULL, 10);
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self.journal_len = strtoull(cmd[4], NULL, 10);
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return self.dump_journal();
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}
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else if (cmd.size() && !strcmp(cmd[0], "dump-meta"))
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{
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if (cmd.size() < 5)
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{
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printf("USAGE: %s dump-meta <meta_file> <meta_block_size> <offset> <size>\n", argv[0]);
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return 1;
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}
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self.meta_device = cmd[1];
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self.meta_block_size = strtoul(cmd[2], NULL, 10);
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self.meta_offset = strtoull(cmd[3], NULL, 10);
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self.meta_len = strtoull(cmd[4], NULL, 10);
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return self.dump_meta();
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}
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else
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{
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printf(
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"USAGE:\n"
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" %s dump-journal [--all] <journal_file> <journal_block_size> <offset> <size>\n"
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" %s dump-meta <meta_file> <meta_block_size> <offset> <size>\n"
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,
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argv[0], argv[0]
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);
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}
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return 0;
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}
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int meta_tool_t::dump_journal()
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{
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auto & self = *this;
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if (self.journal_block_size < DIRECT_IO_ALIGNMENT || (self.journal_block_size % DIRECT_IO_ALIGNMENT) ||
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self.journal_block_size > 128*1024)
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{
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printf("Invalid journal block size\n");
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return 1;
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}
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self.journal_fd = open(self.journal_device, O_DIRECT|O_RDONLY);
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if (self.journal_fd == -1)
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{
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printf("Failed to open journal\n");
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return 1;
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}
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void *data = memalign(MEM_ALIGNMENT, self.journal_block_size);
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self.journal_pos = 0;
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if (self.all)
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{
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while (self.journal_pos < self.journal_len)
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{
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int r = pread(self.journal_fd, data, self.journal_block_size, self.journal_offset+self.journal_pos);
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assert(r == self.journal_block_size);
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uint64_t s;
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for (s = 0; s < self.journal_block_size; s += 8)
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{
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if (*((uint64_t*)((uint8_t*)data+s)) != 0)
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break;
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}
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if (s == self.journal_block_size)
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{
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printf("offset %08lx: zeroes\n", self.journal_pos);
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self.journal_pos += self.journal_block_size;
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}
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else if (((journal_entry*)data)->magic == JOURNAL_MAGIC)
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{
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printf("offset %08lx:\n", self.journal_pos);
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self.dump_journal_block(data);
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}
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else
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{
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printf("offset %08lx: no magic in the beginning, looks like random data (pattern=%lx)\n", self.journal_pos, *((uint64_t*)data));
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self.journal_pos += self.journal_block_size;
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}
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}
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}
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else
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{
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int r = pread(self.journal_fd, data, self.journal_block_size, self.journal_offset+self.journal_pos);
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assert(r == self.journal_block_size);
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journal_entry *je = (journal_entry*)(data);
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if (je->magic != JOURNAL_MAGIC || je->type != JE_START || je_crc32(je) != je->crc32)
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{
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printf("offset %08lx: journal superblock is invalid\n", self.journal_pos);
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}
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else
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{
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printf("offset %08lx:\n", self.journal_pos);
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self.dump_journal_block(data);
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self.started = false;
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self.journal_pos = je->start.journal_start;
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while (1)
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{
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if (self.journal_pos >= self.journal_len)
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self.journal_pos = self.journal_block_size;
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r = pread(self.journal_fd, data, self.journal_block_size, self.journal_offset+self.journal_pos);
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assert(r == self.journal_block_size);
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printf("offset %08lx:\n", self.journal_pos);
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r = self.dump_journal_block(data);
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if (r <= 0)
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{
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printf("end of the journal\n");
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break;
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}
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}
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}
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}
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free(data);
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close(self.journal_fd);
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return 0;
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}
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int meta_tool_t::dump_journal_block(void *buf)
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{
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uint32_t pos = 0;
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journal_pos += journal_block_size;
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int entry = 0;
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bool wrapped = false;
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while (pos < journal_block_size)
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{
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journal_entry *je = (journal_entry*)((uint8_t*)buf + pos);
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if (je->magic != JOURNAL_MAGIC || je->type < JE_MIN || je->type > JE_MAX ||
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!all && started && je->crc32_prev != crc32_last)
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{
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break;
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}
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bool crc32_valid = je_crc32(je) == je->crc32;
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if (!all && !crc32_valid)
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{
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break;
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}
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started = true;
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crc32_last = je->crc32;
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printf("entry % 3d: crc32=%08x %s prev=%08x ", entry, je->crc32, (crc32_valid ? "(valid)" : "(invalid)"), je->crc32_prev);
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if (je->type == JE_START)
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{
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printf("je_start start=%08lx\n", je->start.journal_start);
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}
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else if (je->type == JE_SMALL_WRITE || je->type == JE_SMALL_WRITE_INSTANT)
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{
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printf(
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"je_small_write%s oid=%lx:%lx ver=%lu offset=%u len=%u loc=%08lx",
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je->type == JE_SMALL_WRITE_INSTANT ? "_instant" : "",
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je->small_write.oid.inode, je->small_write.oid.stripe,
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je->small_write.version, je->small_write.offset, je->small_write.len,
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je->small_write.data_offset
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);
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if (journal_pos + je->small_write.len > journal_len)
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{
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// data continues from the beginning of the journal
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journal_pos = journal_block_size;
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wrapped = true;
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}
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if (journal_pos != je->small_write.data_offset)
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{
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printf(" (mismatched, calculated = %lu)", journal_pos);
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}
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journal_pos += je->small_write.len;
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if (journal_pos >= journal_len)
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{
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journal_pos = journal_block_size;
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wrapped = true;
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}
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uint32_t data_crc32 = 0;
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void *data = memalign(MEM_ALIGNMENT, je->small_write.len);
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assert(pread(this->journal_fd, data, je->small_write.len, journal_offset+je->small_write.data_offset) == je->small_write.len);
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data_crc32 = crc32c(0, data, je->small_write.len);
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free(data);
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printf(
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" data_crc32=%08x%s", je->small_write.crc32_data,
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(data_crc32 != je->small_write.crc32_data) ? " (invalid)" : " (valid)"
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);
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printf("\n");
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}
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else if (je->type == JE_BIG_WRITE || je->type == JE_BIG_WRITE_INSTANT)
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{
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printf(
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"je_big_write%s oid=%lx:%lx ver=%lu loc=%08lx\n",
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je->type == JE_BIG_WRITE_INSTANT ? "_instant" : "",
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je->big_write.oid.inode, je->big_write.oid.stripe, je->big_write.version, je->big_write.location
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);
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}
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else if (je->type == JE_STABLE)
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{
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printf("je_stable oid=%lx:%lx ver=%lu\n", je->stable.oid.inode, je->stable.oid.stripe, je->stable.version);
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}
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else if (je->type == JE_ROLLBACK)
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{
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printf("je_rollback oid=%lx:%lx ver=%lu\n", je->rollback.oid.inode, je->rollback.oid.stripe, je->rollback.version);
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}
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else if (je->type == JE_DELETE)
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{
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printf("je_delete oid=%lx:%lx ver=%lu\n", je->del.oid.inode, je->del.oid.stripe, je->del.version);
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}
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pos += je->size;
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entry++;
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}
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if (wrapped)
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{
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journal_pos = journal_len;
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}
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return entry;
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}
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int meta_tool_t::dump_meta()
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{
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if (this->meta_block_size % DIRECT_IO_ALIGNMENT)
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{
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printf("Invalid metadata block size\n");
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return 1;
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}
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this->meta_fd = open(this->meta_device, O_DIRECT|O_RDONLY);
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if (this->meta_fd == -1)
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{
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printf("Failed to open metadata device\n");
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return 1;
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}
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int buf_size = 1024*1024;
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if (buf_size % this->meta_block_size)
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buf_size = 8*this->meta_block_size;
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if (buf_size > this->meta_len)
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buf_size = this->meta_len;
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void *data = memalign_or_die(MEM_ALIGNMENT, buf_size);
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lseek64(this->meta_fd, this->meta_offset, 0);
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read_blocking(this->meta_fd, data, buf_size);
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// Check superblock
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blockstore_meta_header_v1_t *hdr = (blockstore_meta_header_v1_t *)data;
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if (hdr->zero == 0 &&
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hdr->magic == BLOCKSTORE_META_MAGIC_V1 &&
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hdr->version == BLOCKSTORE_META_VERSION_V1)
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{
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// Vitastor 0.6-0.7 - static array of clean_disk_entry with bitmaps
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if (hdr->meta_block_size != this->meta_block_size)
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{
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printf("Using block size of %u bytes based on information from the superblock\n", hdr->meta_block_size);
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this->meta_block_size = hdr->meta_block_size;
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if (buf_size % this->meta_block_size)
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{
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buf_size = 8*this->meta_block_size;
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free(data);
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data = memalign_or_die(MEM_ALIGNMENT, buf_size);
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}
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}
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this->meta_offset += this->meta_block_size;
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this->meta_len -= this->meta_block_size;
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uint64_t clean_entry_bitmap_size = hdr->data_block_size / hdr->bitmap_granularity / 8;
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uint64_t clean_entry_size = sizeof(clean_disk_entry) + 2*clean_entry_bitmap_size;
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uint64_t block_num = 0;
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printf(
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"{\"version\":\"0.6\",\"meta_block_size\":%u,\"data_block_size\":%u,\"bitmap_granularity\":%u,\"entries\":[\n",
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hdr->meta_block_size, hdr->data_block_size, hdr->bitmap_granularity
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);
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bool first = true;
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lseek64(this->meta_fd, this->meta_offset, 0);
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while (this->meta_pos < this->meta_len)
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{
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uint64_t read_len = buf_size < this->meta_len-this->meta_pos ? buf_size : this->meta_len-this->meta_pos;
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read_blocking(this->meta_fd, data, read_len);
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this->meta_pos += read_len;
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for (uint64_t blk = 0; blk < read_len; blk += this->meta_block_size)
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{
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for (uint64_t ioff = 0; ioff < this->meta_block_size-clean_entry_size; ioff += clean_entry_size, block_num++)
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{
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clean_disk_entry *entry = (clean_disk_entry*)(data + blk + ioff);
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if (entry->oid.inode)
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{
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printf(
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#define ENTRY_FMT "{\"block\":%lu,\"pool\":%u,\"inode\":%lu,\"stripe\":%lu,\"version\":%lu,\"bitmap\":\""
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(first ? ENTRY_FMT : (",\n" ENTRY_FMT)),
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#undef ENTRY_FMT
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block_num, INODE_POOL(entry->oid.inode), INODE_NO_POOL(entry->oid.inode),
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entry->oid.stripe, entry->version
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);
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first = false;
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for (uint64_t i = 0; i < clean_entry_bitmap_size; i++)
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{
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printf("%02x", entry->bitmap[i]);
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}
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printf("\",\"ext_bitmap\":\"");
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for (uint64_t i = 0; i < clean_entry_bitmap_size; i++)
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{
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printf("%02x", entry->bitmap[clean_entry_bitmap_size + i]);
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}
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printf("\"}");
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}
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}
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}
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}
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printf("\n]}\n");
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}
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else
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{
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// Vitastor 0.4-0.5 - static array of clean_disk_entry
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uint64_t clean_entry_size = sizeof(clean_disk_entry);
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uint64_t block_num = 0;
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printf("{\"version\":\"0.5\",\"meta_block_size\":%u,\"entries\":[\n", this->meta_block_size);
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bool first = true;
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while (this->meta_pos < this->meta_len)
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{
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uint64_t read_len = buf_size < this->meta_len-this->meta_pos ? buf_size : this->meta_len-this->meta_pos;
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read_blocking(this->meta_fd, data, read_len);
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this->meta_pos += read_len;
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for (uint64_t blk = 0; blk < read_len; blk += this->meta_block_size)
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{
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for (uint64_t ioff = 0; ioff < this->meta_block_size-clean_entry_size; ioff += clean_entry_size, block_num++)
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{
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clean_disk_entry *entry = (clean_disk_entry*)(data + blk + ioff);
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if (entry->oid.inode)
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{
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printf(
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#define ENTRY_FMT "{\"block\":%lu,\"pool\":%u,\"inode\":%lu,\"stripe\":%lu,\"version\":%lu}"
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(first ? ENTRY_FMT : (",\n" ENTRY_FMT)),
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#undef ENTRY_FMT
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block_num, INODE_POOL(entry->oid.inode), INODE_NO_POOL(entry->oid.inode),
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entry->oid.stripe, entry->version
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);
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first = false;
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}
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}
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}
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}
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printf("\n]}\n");
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}
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free(data);
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close(this->meta_fd);
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return 0;
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}
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@ -1,224 +0,0 @@
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// Copyright (c) Vitaliy Filippov, 2019+
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// License: VNPL-1.1 (see README.md for details)
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#define _LARGEFILE64_SOURCE
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/time.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
#include <stdint.h>
|
||||
#include <malloc.h>
|
||||
#include <linux/fs.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <assert.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#include "blockstore_impl.h"
|
||||
#include "crc32c.h"
|
||||
|
||||
struct journal_dump_t
|
||||
{
|
||||
char *journal_device;
|
||||
uint32_t journal_block;
|
||||
uint64_t journal_offset;
|
||||
uint64_t journal_len;
|
||||
uint64_t journal_pos;
|
||||
bool all;
|
||||
bool started;
|
||||
int fd;
|
||||
uint32_t crc32_last;
|
||||
|
||||
int dump_block(void *buf);
|
||||
};
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
journal_dump_t self = { 0 };
|
||||
int b = 1;
|
||||
if (argc >= 2 && !strcmp(argv[1], "--all"))
|
||||
{
|
||||
self.all = true;
|
||||
b = 2;
|
||||
}
|
||||
if (argc < b+4)
|
||||
{
|
||||
printf("USAGE: %s [--all] <journal_file> <journal_block_size> <offset> <size>\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
self.journal_device = argv[b];
|
||||
self.journal_block = strtoul(argv[b+1], NULL, 10);
|
||||
self.journal_offset = strtoull(argv[b+2], NULL, 10);
|
||||
self.journal_len = strtoull(argv[b+3], NULL, 10);
|
||||
if (self.journal_block < DIRECT_IO_ALIGNMENT || (self.journal_block % DIRECT_IO_ALIGNMENT) ||
|
||||
self.journal_block > 128*1024)
|
||||
{
|
||||
printf("Invalid journal block size\n");
|
||||
return 1;
|
||||
}
|
||||
self.fd = open(self.journal_device, O_DIRECT|O_RDONLY);
|
||||
if (self.fd == -1)
|
||||
{
|
||||
printf("Failed to open journal\n");
|
||||
return 1;
|
||||
}
|
||||
void *data = memalign(MEM_ALIGNMENT, self.journal_block);
|
||||
self.journal_pos = 0;
|
||||
if (self.all)
|
||||
{
|
||||
while (self.journal_pos < self.journal_len)
|
||||
{
|
||||
int r = pread(self.fd, data, self.journal_block, self.journal_offset+self.journal_pos);
|
||||
assert(r == self.journal_block);
|
||||
uint64_t s;
|
||||
for (s = 0; s < self.journal_block; s += 8)
|
||||
{
|
||||
if (*((uint64_t*)((uint8_t*)data+s)) != 0)
|
||||
break;
|
||||
}
|
||||
if (s == self.journal_block)
|
||||
{
|
||||
printf("offset %08lx: zeroes\n", self.journal_pos);
|
||||
self.journal_pos += self.journal_block;
|
||||
}
|
||||
else if (((journal_entry*)data)->magic == JOURNAL_MAGIC)
|
||||
{
|
||||
printf("offset %08lx:\n", self.journal_pos);
|
||||
self.dump_block(data);
|
||||
}
|
||||
else
|
||||
{
|
||||
printf("offset %08lx: no magic in the beginning, looks like random data (pattern=%lx)\n", self.journal_pos, *((uint64_t*)data));
|
||||
self.journal_pos += self.journal_block;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
int r = pread(self.fd, data, self.journal_block, self.journal_offset+self.journal_pos);
|
||||
assert(r == self.journal_block);
|
||||
journal_entry *je = (journal_entry*)(data);
|
||||
if (je->magic != JOURNAL_MAGIC || je->type != JE_START || je_crc32(je) != je->crc32)
|
||||
{
|
||||
printf("offset %08lx: journal superblock is invalid\n", self.journal_pos);
|
||||
}
|
||||
else
|
||||
{
|
||||
printf("offset %08lx:\n", self.journal_pos);
|
||||
self.dump_block(data);
|
||||
self.started = false;
|
||||
self.journal_pos = je->start.journal_start;
|
||||
while (1)
|
||||
{
|
||||
if (self.journal_pos >= self.journal_len)
|
||||
self.journal_pos = self.journal_block;
|
||||
r = pread(self.fd, data, self.journal_block, self.journal_offset+self.journal_pos);
|
||||
assert(r == self.journal_block);
|
||||
printf("offset %08lx:\n", self.journal_pos);
|
||||
r = self.dump_block(data);
|
||||
if (r <= 0)
|
||||
{
|
||||
printf("end of the journal\n");
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
free(data);
|
||||
close(self.fd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int journal_dump_t::dump_block(void *buf)
|
||||
{
|
||||
uint32_t pos = 0;
|
||||
journal_pos += journal_block;
|
||||
int entry = 0;
|
||||
bool wrapped = false;
|
||||
while (pos < journal_block)
|
||||
{
|
||||
journal_entry *je = (journal_entry*)((uint8_t*)buf + pos);
|
||||
if (je->magic != JOURNAL_MAGIC || je->type < JE_MIN || je->type > JE_MAX ||
|
||||
!all && started && je->crc32_prev != crc32_last)
|
||||
{
|
||||
break;
|
||||
}
|
||||
bool crc32_valid = je_crc32(je) == je->crc32;
|
||||
if (!all && !crc32_valid)
|
||||
{
|
||||
break;
|
||||
}
|
||||
started = true;
|
||||
crc32_last = je->crc32;
|
||||
printf("entry % 3d: crc32=%08x %s prev=%08x ", entry, je->crc32, (crc32_valid ? "(valid)" : "(invalid)"), je->crc32_prev);
|
||||
if (je->type == JE_START)
|
||||
{
|
||||
printf("je_start start=%08lx\n", je->start.journal_start);
|
||||
}
|
||||
else if (je->type == JE_SMALL_WRITE || je->type == JE_SMALL_WRITE_INSTANT)
|
||||
{
|
||||
printf(
|
||||
"je_small_write%s oid=%lx:%lx ver=%lu offset=%u len=%u loc=%08lx",
|
||||
je->type == JE_SMALL_WRITE_INSTANT ? "_instant" : "",
|
||||
je->small_write.oid.inode, je->small_write.oid.stripe,
|
||||
je->small_write.version, je->small_write.offset, je->small_write.len,
|
||||
je->small_write.data_offset
|
||||
);
|
||||
if (journal_pos + je->small_write.len > journal_len)
|
||||
{
|
||||
// data continues from the beginning of the journal
|
||||
journal_pos = journal_block;
|
||||
wrapped = true;
|
||||
}
|
||||
if (journal_pos != je->small_write.data_offset)
|
||||
{
|
||||
printf(" (mismatched, calculated = %lu)", journal_pos);
|
||||
}
|
||||
journal_pos += je->small_write.len;
|
||||
if (journal_pos >= journal_len)
|
||||
{
|
||||
journal_pos = journal_block;
|
||||
wrapped = true;
|
||||
}
|
||||
uint32_t data_crc32 = 0;
|
||||
void *data = memalign(MEM_ALIGNMENT, je->small_write.len);
|
||||
assert(pread(fd, data, je->small_write.len, journal_offset+je->small_write.data_offset) == je->small_write.len);
|
||||
data_crc32 = crc32c(0, data, je->small_write.len);
|
||||
free(data);
|
||||
printf(
|
||||
" data_crc32=%08x%s", je->small_write.crc32_data,
|
||||
(data_crc32 != je->small_write.crc32_data) ? " (invalid)" : " (valid)"
|
||||
);
|
||||
printf("\n");
|
||||
}
|
||||
else if (je->type == JE_BIG_WRITE || je->type == JE_BIG_WRITE_INSTANT)
|
||||
{
|
||||
printf(
|
||||
"je_big_write%s oid=%lx:%lx ver=%lu loc=%08lx\n",
|
||||
je->type == JE_BIG_WRITE_INSTANT ? "_instant" : "",
|
||||
je->big_write.oid.inode, je->big_write.oid.stripe, je->big_write.version, je->big_write.location
|
||||
);
|
||||
}
|
||||
else if (je->type == JE_STABLE)
|
||||
{
|
||||
printf("je_stable oid=%lx:%lx ver=%lu\n", je->stable.oid.inode, je->stable.oid.stripe, je->stable.version);
|
||||
}
|
||||
else if (je->type == JE_ROLLBACK)
|
||||
{
|
||||
printf("je_rollback oid=%lx:%lx ver=%lu\n", je->rollback.oid.inode, je->rollback.oid.stripe, je->rollback.version);
|
||||
}
|
||||
else if (je->type == JE_DELETE)
|
||||
{
|
||||
printf("je_delete oid=%lx:%lx ver=%lu\n", je->del.oid.inode, je->del.oid.stripe, je->del.version);
|
||||
}
|
||||
pos += je->size;
|
||||
entry++;
|
||||
}
|
||||
if (wrapped)
|
||||
{
|
||||
journal_pos = journal_len;
|
||||
}
|
||||
return entry;
|
||||
}
|
||||
@ -1,169 +0,0 @@
|
||||
// Copyright (c) Vitaliy Filippov, 2019+
|
||||
// License: VNPL-1.1 (see README.md for details)
|
||||
|
||||
#define _LARGEFILE64_SOURCE
|
||||
#include <sys/types.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
#include <malloc.h>
|
||||
#include <errno.h>
|
||||
#include <assert.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#include "blockstore_impl.h"
|
||||
#include "osd_id.h"
|
||||
#include "rw_blocking.h"
|
||||
|
||||
struct meta_dumper_t
|
||||
{
|
||||
char *meta_device;
|
||||
uint32_t meta_block_size;
|
||||
uint64_t meta_offset;
|
||||
uint64_t meta_len;
|
||||
uint64_t meta_pos;
|
||||
int fd;
|
||||
|
||||
int dump();
|
||||
};
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
meta_dumper_t self = { 0 };
|
||||
int b = 1;
|
||||
if (argc < b+4)
|
||||
{
|
||||
printf("USAGE: %s <meta_file> <meta_block_size> <offset> <size>\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
self.meta_device = argv[b];
|
||||
self.meta_block_size = strtoul(argv[b+1], NULL, 10);
|
||||
self.meta_offset = strtoull(argv[b+2], NULL, 10);
|
||||
self.meta_len = strtoull(argv[b+3], NULL, 10);
|
||||
return self.dump();
|
||||
}
|
||||
|
||||
int meta_dumper_t::dump()
|
||||
{
|
||||
if (this->meta_block_size % DIRECT_IO_ALIGNMENT)
|
||||
{
|
||||
printf("Invalid metadata block size\n");
|
||||
return 1;
|
||||
}
|
||||
this->fd = open(this->meta_device, O_DIRECT|O_RDONLY);
|
||||
if (this->fd == -1)
|
||||
{
|
||||
printf("Failed to open metadata device\n");
|
||||
return 1;
|
||||
}
|
||||
int buf_size = 1024*1024;
|
||||
if (buf_size % this->meta_block_size)
|
||||
buf_size = 8*this->meta_block_size;
|
||||
if (buf_size > this->meta_len)
|
||||
buf_size = this->meta_len;
|
||||
void *data = memalign_or_die(MEM_ALIGNMENT, buf_size);
|
||||
lseek64(this->fd, this->meta_offset, 0);
|
||||
read_blocking(this->fd, data, buf_size);
|
||||
// Check superblock
|
||||
blockstore_meta_header_v1_t *hdr = (blockstore_meta_header_v1_t *)data;
|
||||
if (hdr->zero == 0 &&
|
||||
hdr->magic == BLOCKSTORE_META_MAGIC_V1 &&
|
||||
hdr->version == BLOCKSTORE_META_VERSION_V1)
|
||||
{
|
||||
// Vitastor 0.6-0.7 - static array of clean_disk_entry with bitmaps
|
||||
if (hdr->meta_block_size != this->meta_block_size)
|
||||
{
|
||||
printf("Using block size of %u bytes based on information from the superblock\n", hdr->meta_block_size);
|
||||
this->meta_block_size = hdr->meta_block_size;
|
||||
if (buf_size % this->meta_block_size)
|
||||
{
|
||||
buf_size = 8*this->meta_block_size;
|
||||
free(data);
|
||||
data = memalign_or_die(MEM_ALIGNMENT, buf_size);
|
||||
}
|
||||
}
|
||||
this->meta_offset += this->meta_block_size;
|
||||
this->meta_len -= this->meta_block_size;
|
||||
uint64_t clean_entry_bitmap_size = hdr->data_block_size / hdr->bitmap_granularity / 8;
|
||||
uint64_t clean_entry_size = sizeof(clean_disk_entry) + 2*clean_entry_bitmap_size;
|
||||
uint64_t block_num = 0;
|
||||
printf(
|
||||
"{\"version\":\"0.6\",\"meta_block_size\":%u,\"data_block_size\":%u,\"bitmap_granularity\":%u,\"entries\":[\n",
|
||||
hdr->meta_block_size, hdr->data_block_size, hdr->bitmap_granularity
|
||||
);
|
||||
bool first = true;
|
||||
lseek64(this->fd, this->meta_offset, 0);
|
||||
while (this->meta_pos < this->meta_len)
|
||||
{
|
||||
uint64_t read_len = buf_size < this->meta_len-this->meta_pos ? buf_size : this->meta_len-this->meta_pos;
|
||||
read_blocking(this->fd, data, read_len);
|
||||
this->meta_pos += read_len;
|
||||
for (uint64_t blk = 0; blk < read_len; blk += this->meta_block_size)
|
||||
{
|
||||
for (uint64_t ioff = 0; ioff < this->meta_block_size-clean_entry_size; ioff += clean_entry_size, block_num++)
|
||||
{
|
||||
clean_disk_entry *entry = (clean_disk_entry*)(data + blk + ioff);
|
||||
if (entry->oid.inode)
|
||||
{
|
||||
printf(
|
||||
#define ENTRY_FMT "{\"block\":%lu,\"pool\":%u,\"inode\":%lu,\"stripe\":%lu,\"version\":%lu,\"bitmap\":\""
|
||||
(first ? ENTRY_FMT : (",\n" ENTRY_FMT)),
|
||||
#undef ENTRY_FMT
|
||||
block_num, INODE_POOL(entry->oid.inode), INODE_NO_POOL(entry->oid.inode),
|
||||
entry->oid.stripe, entry->version
|
||||
);
|
||||
first = false;
|
||||
for (uint64_t i = 0; i < clean_entry_bitmap_size; i++)
|
||||
{
|
||||
printf("%02x", entry->bitmap[i]);
|
||||
}
|
||||
printf("\",\"ext_bitmap\":\"");
|
||||
for (uint64_t i = 0; i < clean_entry_bitmap_size; i++)
|
||||
{
|
||||
printf("%02x", entry->bitmap[clean_entry_bitmap_size + i]);
|
||||
}
|
||||
printf("\"}");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
printf("\n]}\n");
|
||||
}
|
||||
else
|
||||
{
|
||||
// Vitastor 0.4-0.5 - static array of clean_disk_entry
|
||||
uint64_t clean_entry_size = sizeof(clean_disk_entry);
|
||||
uint64_t block_num = 0;
|
||||
printf("{\"version\":\"0.5\",\"meta_block_size\":%u,\"entries\":[\n", this->meta_block_size);
|
||||
bool first = true;
|
||||
while (this->meta_pos < this->meta_len)
|
||||
{
|
||||
uint64_t read_len = buf_size < this->meta_len-this->meta_pos ? buf_size : this->meta_len-this->meta_pos;
|
||||
read_blocking(this->fd, data, read_len);
|
||||
this->meta_pos += read_len;
|
||||
for (uint64_t blk = 0; blk < read_len; blk += this->meta_block_size)
|
||||
{
|
||||
for (uint64_t ioff = 0; ioff < this->meta_block_size-clean_entry_size; ioff += clean_entry_size, block_num++)
|
||||
{
|
||||
clean_disk_entry *entry = (clean_disk_entry*)(data + blk + ioff);
|
||||
if (entry->oid.inode)
|
||||
{
|
||||
printf(
|
||||
#define ENTRY_FMT "{\"block\":%lu,\"pool\":%u,\"inode\":%lu,\"stripe\":%lu,\"version\":%lu}"
|
||||
(first ? ENTRY_FMT : (",\n" ENTRY_FMT)),
|
||||
#undef ENTRY_FMT
|
||||
block_num, INODE_POOL(entry->oid.inode), INODE_NO_POOL(entry->oid.inode),
|
||||
entry->oid.stripe, entry->version
|
||||
);
|
||||
first = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
printf("\n]}\n");
|
||||
}
|
||||
free(data);
|
||||
close(this->fd);
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue