Cluster Project branch, RHEL5, updated. cmirror_1_1_15-161-g5ff7b66
rpeterso@sourceware.org
rpeterso@sourceware.org
Mon Jul 21 22:48:00 GMT 2008
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- Log -----------------------------------------------------------------
commit 5ff7b6671b739796e5c3f4f2f8cc0005015936cc
Author: Bob Peterson <rpeterso@redhat.com>
Date: Wed Jul 16 19:02:56 2008 -0500
Print log header flags for gfs journals.
commit e9edb213078c4d59a5f229a98cb157fcbe977df8
Author: Bob Peterson <rpeterso@redhat.com>
Date: Thu Jul 10 16:12:53 2008 -0500
Fix some minor white space issues.
commit dee2b071cdace918515cddd1904df1d5d86c7dfc
Author: Bob Peterson <rpeterso@redhat.com>
Date: Mon Jun 23 10:11:35 2008 -0500
savemeta was not saving gfs1 journals properly.
commit 7492a086097d72db89d105f0f38004e7a106a1c4
Author: Bob Peterson <rpeterso@redhat.com>
Date: Thu Jun 5 18:00:07 2008 -0500
Ability to specify starting block or structure with -s
commit 28610e88b1706a296780193bbb7b6072bb972c24
Author: Bob Peterson <rpeterso@redhat.com>
Date: Thu Jun 5 16:23:37 2008 -0500
Allow keywords in block number input
commit 8a4a16fd453c507b6d9aa492b5f0bbb687b40c64
Author: Bob Peterson <rpeterso@redhat.com>
Date: Thu Jun 5 13:47:16 2008 -0500
Updates to gfs2_edit man page for new options.
commit 4a138cb97b20c1abd2aa4c7740a27d80b3a060eb
Author: Bob Peterson <rpeterso@redhat.com>
Date: Wed Jun 4 08:39:20 2008 -0500
Fix gfs2_edit bugs with non-4K block sizes
commit 47f97db79bef3295e490c86bdefc37ba5c58e58e
Author: Bob Peterson <rpeterso@redhat.com>
Date: Thu Apr 10 10:45:47 2008 -0500
Fix some compiler warnings in gfs2_edit
commit ddcf644dfa303fb2ca2363a6f34033438dd358c7
Author: Bob Peterson <rpeterso@redhat.com>
Date: Thu Apr 10 10:45:47 2008 -0500
gfs2_edit was not recalculating the max block size after it figured
that out.
commit 6d4364e8aaec211b27ce19ae2997351d7d179263
Author: Bob Peterson <rpeterso@redhat.com>
Date: Tue Mar 18 15:44:24 2008 -0500
Fix gfs2_edit print options (-p) to work properly for gfs-1
rgs and rindex. Also fixed rgflags option for gfs1.
commit d4b869fcf12cdae55f9558d69dc254aa675b09e8
Author: Bob Peterson <rpeterso@redhat.com>
Date: Tue Mar 11 18:18:43 2008 -0500
Fix savemeta so it saves gfs-1 rg information properly
Also add savergs option to facilitate rg-only repairs.
-----------------------------------------------------------------------
Summary of changes:
gfs2/edit/gfs2hex.c | 28 ++--
gfs2/edit/hexedit.c | 461 ++++++++++++++++++++++++++++++++------------------
gfs2/edit/hexedit.h | 34 ++++-
gfs2/edit/savemeta.c | 109 ++++++++-----
gfs2/man/gfs2_edit.8 | 51 ++++++-
5 files changed, 459 insertions(+), 224 deletions(-)
diff --git a/gfs2/edit/gfs2hex.c b/gfs2/edit/gfs2hex.c
index a56b4ee..082f5b6 100644
--- a/gfs2/edit/gfs2hex.c
+++ b/gfs2/edit/gfs2hex.c
@@ -38,7 +38,6 @@
extern struct gfs2_sb sb;
extern char *buf;
extern struct gfs2_dinode di;
-extern uint64_t bufsize;
extern int line, termlines;
extern char edit_fmt[80];
extern char estring[1024];
@@ -70,9 +69,9 @@ void print_gfs2(const char *fmt, ...)
va_start(args, fmt);
vsprintf(string, fmt, args);
if (termlines)
- printw(string);
+ printw("%s", string);
else
- printf(string);
+ printf("%s", string);
va_end(args);
}
@@ -127,9 +126,9 @@ void print_it(const char *label, const char *fmt, const char *fmt2, ...)
vsprintf(tmp_string, fmt, args);
if (termlines)
- printw(tmp_string);
+ printw("%s", tmp_string);
else
- printf(tmp_string);
+ printf("%s", tmp_string);
check_highlight(FALSE);
if (fmt2) {
@@ -159,10 +158,10 @@ void print_it(const char *label, const char *fmt, const char *fmt2, ...)
fmtstring="(decimal)";
if (termlines) {
move(line, 50);
- printw(fmtstring);
+ printw("%s", fmtstring);
}
else
- printf(fmtstring);
+ printf("%s", fmtstring);
}
if (termlines) {
refresh();
@@ -226,9 +225,8 @@ void do_dinode_extended(struct gfs2_dinode *di, char *buf)
memset(indirect, 0, sizeof(indirect));
if (di->di_height > 0) {
/* Indirect pointers */
- for (x = sizeof(struct gfs2_dinode), y = 0;
- x < bufsize;
- x += sizeof(uint64_t), y++) {
+ for (x = sizeof(struct gfs2_dinode); x < sbd.bsize;
+ x += sizeof(uint64_t)) {
p = be64_to_cpu(*(uint64_t *)(buf + x));
if (p) {
indirect->ii[indirect_blocks].block = p;
@@ -244,7 +242,7 @@ void do_dinode_extended(struct gfs2_dinode *di, char *buf)
indirect->ii[0].dirents = 0;
indirect->ii[0].block = block;
indirect->ii[0].is_dir = TRUE;
- for (x = sizeof(struct gfs2_dinode); x < bufsize; x += skip) {
+ for (x = sizeof(struct gfs2_dinode); x < sbd.bsize; x += skip) {
skip = indirect_dirent(indirect->ii,
buf + x,
indirect->ii[0].dirents);
@@ -276,7 +274,7 @@ void do_dinode_extended(struct gfs2_dinode *di, char *buf)
gfs2_leaf_in(&leaf, tmp_bh->b_data);
indirect->ii[indirect_blocks].dirents = 0;
for (direntcount = 0, bufoffset = sizeof(struct gfs2_leaf);
- bufoffset < bufsize;
+ bufoffset < sbd.bsize;
direntcount++, bufoffset += skip) {
skip = indirect_dirent(&indirect->ii[indirect_blocks],
tmp_bh->b_data + bufoffset,
@@ -318,7 +316,7 @@ int do_indirect_extended(char *buf, struct iinfo *iinf)
memset(iinf, 0, sizeof(struct iinfo));
for (x = (gfs1 ? sizeof(struct gfs_indirect):
sizeof(struct gfs2_meta_header)), y = 0;
- x < bufsize;
+ x < sbd.bsize;
x += sizeof(uint64_t), y++) {
p = be64_to_cpu(*(uint64_t *)(buf + x));
if (p) {
@@ -353,7 +351,7 @@ void do_leaf_extended(char *buf, struct iinfo *indir)
x = 0;
memset(indir, 0, sizeof(indir));
/* Directory Entries: */
- for (i = sizeof(struct gfs2_leaf); i < bufsize;
+ for (i = sizeof(struct gfs2_leaf); i < sbd.bsize;
i += de.de_rec_len) {
gfs2_dirent_in(&de, buf + i);
if (de.de_inum.no_addr) {
@@ -400,7 +398,7 @@ void do_eattr_extended(char *buf)
print_gfs2("Eattr Entries:");
eol(0);
- for (x = sizeof(struct gfs2_meta_header); x < bufsize; x += ea.ea_rec_len)
+ for (x = sizeof(struct gfs2_meta_header); x < sbd.bsize; x += ea.ea_rec_len)
{
eol(0);
gfs2_ea_header_in(&ea, buf + x);
diff --git a/gfs2/edit/hexedit.c b/gfs2/edit/hexedit.c
index df94600..b169135 100644
--- a/gfs2/edit/hexedit.c
+++ b/gfs2/edit/hexedit.c
@@ -387,7 +387,7 @@ int display_block_type(const char *lpBuffer, int from_restore)
}
if (block == RGLIST_DUMMY_BLOCK) {
ret_type = GFS2_METATYPE_RG;
- struct_len = sizeof(struct gfs2_rgrp);
+ struct_len = gfs1 ? sizeof(struct gfs_rgrp) : sizeof(struct gfs2_rgrp);
}
else if ((ret_type = get_block_type(lpBuffer))) {
switch (*(lpBuffer+7)) {
@@ -469,8 +469,8 @@ int display_block_type(const char *lpBuffer, int from_restore)
if (!screen_chunk_size)
screen_chunk_size = 256;
print_gfs2("(p.%d of %d)", (offset / screen_chunk_size) + 1,
- (bufsize % screen_chunk_size) > 0 ?
- bufsize / screen_chunk_size + 1 : bufsize /
+ (sbd.bsize % screen_chunk_size) > 0 ?
+ sbd.bsize / screen_chunk_size + 1 : sbd.bsize /
screen_chunk_size);
/*eol(9);*/
}
@@ -534,7 +534,7 @@ int hexdump(uint64_t startaddr, const char *lpBuffer, int len)
line < termlines &&
line <= ((screen_chunk_size / 16) + 2)) ||
(!termlines && l < len)) &&
- l < bufsize) {
+ l < sbd.bsize) {
if (termlines) {
move(line, 0);
COLORS_OFFSETS; /* cyan for offsets */
@@ -618,6 +618,17 @@ uint64_t masterblock(const char *fn)
}
/* ------------------------------------------------------------------------ */
+/* risize - size of one rindex entry, whether gfs1 or gfs2 */
+/* ------------------------------------------------------------------------ */
+static int risize(void)
+{
+ if (gfs1)
+ return sizeof(struct gfs_rindex);
+ else
+ return sizeof(struct gfs2_rindex);
+}
+
+/* ------------------------------------------------------------------------ */
/* rgcount - return how many rgrps there are. */
/* ------------------------------------------------------------------------ */
void rgcount(void)
@@ -633,7 +644,7 @@ void rgcount(void)
ribh = bread(&sbd, block);
riinode = inode_get(&sbd, ribh);
printf("%lld RGs in this file system.\n",
- riinode->i_di.di_size / sizeof(struct gfs2_rindex));
+ (unsigned long long)riinode->i_di.di_size / risize());
inode_put(riinode, not_updated);
exit(EXIT_SUCCESS);
}
@@ -646,10 +657,18 @@ uint64_t find_rgrp_block(struct gfs2_inode *di, int rg)
char buf[sizeof(struct gfs2_rindex)];
int amt;
struct gfs2_rindex ri;
+ uint64_t offset, gfs1_adj = 0;
- amt = gfs2_readi(di, (void *)&buf,
- rg * sizeof(struct gfs2_rindex),
- sizeof(struct gfs2_rindex));
+ offset = rg * risize();
+ if (gfs1) {
+ uint64_t sd_jbsize =
+ (sbd.bsize - sizeof(struct gfs2_meta_header));
+
+ gfs1_adj = (offset / sd_jbsize) *
+ sizeof(struct gfs2_meta_header);
+ gfs1_adj += sizeof(struct gfs2_meta_header);
+ }
+ amt = gfs2_readi(di, (void *)&buf, offset + gfs1_adj, risize());
if (!amt) /* end of file */
return 0;
gfs2_rindex_in(&ri, buf);
@@ -657,56 +676,126 @@ uint64_t find_rgrp_block(struct gfs2_inode *di, int rg)
}
/* ------------------------------------------------------------------------ */
-/* set_rgrp_flags - Set an rgrp's flags to a given value */
-/* rgnum: which rg to print or modify flags for (0 - X) */
-/* new_flags: value to set new rg_flags to (if modify == TRUE) */
-/* modify: TRUE if the value is to be modified, FALSE if it's to be printed */
-/* full: TRUE if the full RG should be printed. */
+/* gfs_rgrp_in - Read in a resource group header */
/* ------------------------------------------------------------------------ */
-void set_rgrp_flags(int rgnum, uint32_t new_flags, int modify, int full)
+void gfs_rgrp_in(struct gfs_rgrp *rgrp, char *buf)
+{
+ struct gfs_rgrp *str = (struct gfs_rgrp *)buf;
+
+ gfs2_meta_header_in(&rgrp->rg_header, buf);
+ rgrp->rg_flags = be32_to_cpu(str->rg_flags);
+ rgrp->rg_free = be32_to_cpu(str->rg_free);
+ rgrp->rg_useddi = be32_to_cpu(str->rg_useddi);
+ rgrp->rg_freedi = be32_to_cpu(str->rg_freedi);
+ gfs2_inum_in(&rgrp->rg_freedi_list, (char *)&str->rg_freedi_list);
+ rgrp->rg_usedmeta = be32_to_cpu(str->rg_usedmeta);
+ rgrp->rg_freemeta = be32_to_cpu(str->rg_freemeta);
+}
+
+/* ------------------------------------------------------------------------ */
+/* gfs_rgrp_out */
+/* ------------------------------------------------------------------------ */
+void gfs_rgrp_out(struct gfs_rgrp *rgrp, char *buf)
+{
+ struct gfs_rgrp *str = (struct gfs_rgrp *)buf;
+
+ gfs2_meta_header_out(&rgrp->rg_header, buf);
+ str->rg_flags = cpu_to_be32(rgrp->rg_flags);
+ str->rg_free = cpu_to_be32(rgrp->rg_free);
+ str->rg_useddi = cpu_to_be32(rgrp->rg_useddi);
+ str->rg_freedi = cpu_to_be32(rgrp->rg_freedi);
+ gfs2_inum_out(&rgrp->rg_freedi_list, (char *)&str->rg_freedi_list);
+ str->rg_usedmeta = cpu_to_be32(rgrp->rg_usedmeta);
+ str->rg_freemeta = cpu_to_be32(rgrp->rg_freemeta);
+}
+
+/* ------------------------------------------------------------------------ */
+/* gfs_rgrp_print - print a gfs1 resource group */
+/* ------------------------------------------------------------------------ */
+void gfs_rgrp_print(struct gfs_rgrp *rg)
{
- struct gfs2_rgrp rg;
- struct gfs2_buffer_head *bh, *ribh;
- uint64_t rgblk, block;
+ gfs2_meta_header_print(&rg->rg_header);
+ pv(rg, rg_flags, "%u", "0x%x");
+ pv(rg, rg_free, "%u", "0x%x");
+ pv(rg, rg_useddi, "%u", "0x%x");
+ pv(rg, rg_freedi, "%u", "0x%x");
+ gfs2_inum_print(&rg->rg_freedi_list);
+ pv(rg, rg_usedmeta, "%u", "0x%x");
+ pv(rg, rg_freemeta, "%u", "0x%x");
+}
+
+/* ------------------------------------------------------------------------ */
+/* get_rg_addr */
+/* ------------------------------------------------------------------------ */
+uint64_t get_rg_addr(int rgnum)
+{
+ struct gfs2_buffer_head *bh;
+ uint64_t rgblk = 0, block;
struct gfs2_inode *riinode;
if (gfs1)
block = sbd1->sb_rindex_di.no_addr;
else
block = masterblock("rindex");
- ribh = bread(&sbd, block);
- riinode = inode_get(&sbd, ribh);
- if (rgnum >= riinode->i_di.di_size / sizeof(struct gfs2_rindex)) {
+ bh = bread(&sbd, block);
+ riinode = inode_get(&sbd, bh);
+ if (rgnum < riinode->i_di.di_size / risize())
+ rgblk = find_rgrp_block(riinode, rgnum);
+ else
fprintf(stderr, "Error: File system only has %lld RGs.\n",
- riinode->i_di.di_size / sizeof(struct gfs2_rindex));
- inode_put(riinode, not_updated);
- brelse(ribh, not_updated);
- return;
- }
- rgblk = find_rgrp_block(riinode, rgnum);
+ (unsigned long long)riinode->i_di.di_size / risize());
+ inode_put(riinode, not_updated);
+ return rgblk;
+}
+
+/* ------------------------------------------------------------------------ */
+/* set_rgrp_flags - Set an rgrp's flags to a given value */
+/* rgnum: which rg to print or modify flags for (0 - X) */
+/* new_flags: value to set new rg_flags to (if modify == TRUE) */
+/* modify: TRUE if the value is to be modified, FALSE if it's to be printed */
+/* full: TRUE if the full RG should be printed. */
+/* ------------------------------------------------------------------------ */
+void set_rgrp_flags(int rgnum, uint32_t new_flags, int modify, int full)
+{
+ union {
+ struct gfs2_rgrp rg2;
+ struct gfs_rgrp rg1;
+ } rg;
+ struct gfs2_buffer_head *bh;
+ uint64_t rgblk;
+
+ rgblk = get_rg_addr(rgnum);
bh = bread(&sbd, rgblk);
- gfs2_rgrp_in(&rg, bh->b_data);
+ if (gfs1)
+ gfs_rgrp_in(&rg.rg1, bh->b_data);
+ else
+ gfs2_rgrp_in(&rg.rg2, bh->b_data);
if (modify) {
printf("RG #%d (block %llu / 0x%llx) rg_flags changed from 0x%08x to 0x%08x\n",
rgnum, (unsigned long long)rgblk,
- (unsigned long long)rgblk, rg.rg_flags, new_flags);
- rg.rg_flags = new_flags;
- gfs2_rgrp_out(&rg, bh->b_data);
+ (unsigned long long)rgblk, rg.rg2.rg_flags, new_flags);
+ rg.rg2.rg_flags = new_flags;
+ if (gfs1)
+ gfs_rgrp_out(&rg.rg1, bh->b_data);
+ else
+ gfs2_rgrp_out(&rg.rg2, bh->b_data);
brelse(bh, updated);
} else {
if (full) {
print_gfs2("RG #%d", rgnum);
print_gfs2(" located at: %llu (0x%llx)", rgblk, rgblk);
eol(0);
- gfs2_rgrp_print(&rg);
+ if (gfs1)
+ gfs_rgrp_print(&rg.rg1);
+ else
+ gfs2_rgrp_print(&rg.rg2);
}
else
printf("RG #%d (block %llu / 0x%llx) rg_flags = 0x%08x\n",
rgnum, (unsigned long long)rgblk,
- (unsigned long long)rgblk, rg.rg_flags);
+ (unsigned long long)rgblk, rg.rg2.rg_flags);
brelse(bh, not_updated);
}
- inode_put(riinode, not_updated);
if (modify)
bsync(&sbd);
}
@@ -718,20 +807,36 @@ int parse_rindex(struct gfs2_inode *di, int print_rindex)
{
int error, start_line;
struct gfs2_rindex ri;
- char buf[sizeof(struct gfs2_rindex)];
+ char buf[sizeof(struct gfs_rindex)];
char highlighted_addr[32];
start_line = line;
error = 0;
- print_gfs2("RG index entries found: %d.",
- di->i_di.di_size / sizeof(struct gfs2_rindex));
+ print_gfs2("RG index entries found: %d.", di->i_di.di_size / risize());
eol(0);
lines_per_row[dmode] = 6;
memset(highlighted_addr, 0, sizeof(highlighted_addr));
+ if (gfs1) {
+ /* gfs1 rindex files have the meta_header which is not
+ accounted for in gfs2's dinode size. Therefore, adjust. */
+ di->i_di.di_size += ((di->i_di.di_size / sbd.bsize) + 1) *
+ sizeof(struct gfs2_meta_header);
+ }
for (print_entry_ndx=0; ; print_entry_ndx++) {
- error = gfs2_readi(di, (void *)&buf,
- print_entry_ndx * sizeof(struct gfs2_rindex),
- sizeof(struct gfs2_rindex));
+ uint64_t gfs1_adj = 0;
+ uint64_t offset = print_entry_ndx * risize();
+
+ if (gfs1) {
+ uint64_t sd_jbsize =
+ (sbd.bsize - sizeof(struct gfs2_meta_header));
+
+ gfs1_adj = (offset / sd_jbsize) *
+ sizeof(struct gfs2_meta_header);
+ gfs1_adj += sizeof(struct gfs2_meta_header);
+ }
+
+ error = gfs2_readi(di, (void *)&buf, offset + gfs1_adj,
+ risize());
if (!error) /* end of file */
break;
gfs2_rindex_in(&ri, buf);
@@ -753,12 +858,18 @@ int parse_rindex(struct gfs2_inode *di, int print_rindex)
if(print_rindex)
gfs2_rindex_print(&ri);
else {
- struct gfs2_rgrp rg;
struct gfs2_buffer_head *tmp_bh;
tmp_bh = bread(&sbd, ri.ri_addr);
- gfs2_rgrp_in(&rg, tmp_bh->b_data);
- gfs2_rgrp_print(&rg);
+ if (gfs1) {
+ struct gfs_rgrp rg1;
+ gfs_rgrp_in(&rg1, tmp_bh->b_data);
+ gfs_rgrp_print(&rg1);
+ } else {
+ struct gfs2_rgrp rg;
+ gfs2_rgrp_in(&rg, tmp_bh->b_data);
+ gfs2_rgrp_print(&rg);
+ }
brelse(tmp_bh, not_updated);
}
last_entry_onscreen[dmode] = print_entry_ndx;
@@ -1058,8 +1169,8 @@ int display_indirect(struct iinfo *ind, int indblocks, int level, uint64_t start
diptrs = 483;
inptrs = 501;
} else {
- diptrs = (bufsize - sizeof(sizeof(struct gfs2_dinode))) / sizeof(uint64_t);
- inptrs = (bufsize - sizeof(sizeof(struct gfs2_meta_header))) /
+ diptrs = (sbd.bsize - sizeof(sizeof(struct gfs2_dinode))) / sizeof(uint64_t);
+ inptrs = (sbd.bsize - sizeof(sizeof(struct gfs2_meta_header))) /
sizeof(uint64_t);
}
/* Multiply out the max factor based on inode height.*/
@@ -1126,7 +1237,7 @@ int display_indirect(struct iinfo *ind, int indblocks, int level, uint64_t start
offsets[0] = pndx;
for (hgt = cur_height; hgt >= 0; hgt--)
file_offset += offsets[cur_height - hgt] *
- factor[di.di_height - hgt - 1] * bufsize;
+ factor[di.di_height - hgt - 1] * sbd.bsize;
print_gfs2(" ");
h = 'K';
human_off = (file_offset / 1024.0);
@@ -1148,12 +1259,12 @@ int display_indirect(struct iinfo *ind, int indblocks, int level, uint64_t start
char *tmpbuf;
more_indir = malloc(sizeof(struct iinfo));
- tmpbuf = malloc(bufsize);
+ tmpbuf = malloc(sbd.bsize);
if (tmpbuf) {
do_lseek(sbd.device_fd,
- ind->ii[pndx].block * bufsize);
+ ind->ii[pndx].block * sbd.bsize);
do_read(sbd.device_fd, tmpbuf,
- bufsize); /* read in the desired block */
+ sbd.bsize); /* read in the desired block */
memset(more_indir, 0, sizeof(struct iinfo));
if (S_ISDIR(di.di_mode)) {
do_leaf_extended(tmpbuf, more_indir);
@@ -1283,7 +1394,10 @@ int display_extended(void)
else if (display_indirect(indirect, indirect_blocks, 0, 0) == 0)
return -1;
else if (block_is_rglist()) {
- tmp_bh = bread(&sbd, masterblock("rindex"));
+ if (gfs1)
+ tmp_bh = bread(&sbd, sbd1->sb_rindex_di.no_addr);
+ else
+ tmp_bh = bread(&sbd, masterblock("rindex"));
tmp_inode = inode_get(&sbd, tmp_bh);
parse_rindex(tmp_inode, FALSE);
brelse(tmp_bh, not_updated);
@@ -1325,7 +1439,7 @@ void read_superblock(int fd)
sbd1 = (struct gfs_sb *)&sbd.sd_sb;
ioctl(fd, BLKFLSBUF, 0);
do_lseek(fd, 0x10 * 4096);
- do_read(fd, buf, bufsize); /* read in the desired block */
+ do_read(fd, buf, sbd.bsize); /* read in the desired block */
memset(&sbd, 0, sizeof(struct gfs2_sbd));
sbd.device_fd = fd;
sbd.bsize = GFS2_DEFAULT_BSIZE;
@@ -1354,10 +1468,11 @@ void read_superblock(int fd)
}
else
gfs1 = FALSE;
- bufsize = sbd.sd_sb.sb_bsize;
- if (!bufsize)
- bufsize = GFS2_DEFAULT_BSIZE;
- block = 0x10 * (GFS2_DEFAULT_BSIZE / bufsize);
+ sbd.bsize = sbd.sd_sb.sb_bsize;
+ if (!sbd.bsize)
+ sbd.bsize = GFS2_DEFAULT_BSIZE;
+ compute_constants(&sbd);
+ block = 0x10 * (GFS2_DEFAULT_BSIZE / sbd.bsize);
}
/* ------------------------------------------------------------------------ */
@@ -1366,8 +1481,8 @@ void read_superblock(int fd)
void read_master_dir(void)
{
ioctl(sbd.device_fd, BLKFLSBUF, 0);
- do_lseek(sbd.device_fd, sbd.sd_sb.sb_master_dir.no_addr * bufsize);
- do_read(sbd.device_fd, buf, bufsize); /* read in the desired block */
+ do_lseek(sbd.device_fd, sbd.sd_sb.sb_master_dir.no_addr * sbd.bsize);
+ do_read(sbd.device_fd, buf, sbd.bsize); /* read in the desired block */
gfs2_dinode_in(&di, buf); /* parse disk inode into structure */
do_dinode_extended(&di, buf); /* get extended data, if any */
memcpy(&masterdir, &indirect[0], sizeof(struct indirect_info));
@@ -1380,19 +1495,22 @@ int display(int identify_only)
{
uint64_t blk;
- if (block == RGLIST_DUMMY_BLOCK)
- blk = masterblock("rindex");
- else
+ if (block == RGLIST_DUMMY_BLOCK) {
+ if (gfs1)
+ blk = sbd1->sb_rindex_di.no_addr;
+ else
+ blk = masterblock("rindex");
+ } else
blk = block;
if (termlines) {
display_title_lines();
move(2,0);
}
if (block_in_mem != blk) { /* If we changed blocks from the last read */
- dev_offset = blk * bufsize;
+ dev_offset = blk * sbd.bsize;
ioctl(sbd.device_fd, BLKFLSBUF, 0);
do_lseek(sbd.device_fd, dev_offset);
- do_read(sbd.device_fd, buf, bufsize); /* read desired block */
+ do_read(sbd.device_fd, buf, sbd.bsize); /* read desired block */
block_in_mem = blk; /* remember which block is in memory */
}
line = 1;
@@ -1401,7 +1519,7 @@ int display(int identify_only)
return 0;
indirect_blocks = 0;
lines_per_row[dmode] = 1;
- if (gfs2_struct_type == GFS2_METATYPE_SB || blk == 0x10 * (4096 / bufsize)) {
+ if (gfs2_struct_type == GFS2_METATYPE_SB || blk == 0x10 * (4096 / sbd.bsize)) {
gfs2_sb_in(&sbd.sd_sb, buf); /* parse it out into the sb structure */
memset(indirect, 0, sizeof(indirect));
indirect->ii[0].block = sbd.sd_sb.sb_master_dir.no_addr;
@@ -1450,7 +1568,7 @@ int display(int identify_only)
if (dmode == HEX_MODE) /* if hex display mode */
hexdump(dev_offset, buf,
(gfs2_struct_type == GFS2_METATYPE_DI)?
- struct_len + di.di_size:bufsize);
+ struct_len + di.di_size:sbd.bsize);
else if (dmode == GFS2_MODE) /* if structure display */
display_gfs2(); /* display the gfs2 structure */
else
@@ -1508,6 +1626,65 @@ uint64_t pop_block(void)
}
/* ------------------------------------------------------------------------ */
+/* Check if the word is a keyword such as "sb" or "rindex" */
+/* Returns: block number if it is, else 0 */
+/* ------------------------------------------------------------------------ */
+uint64_t check_keywords(const char *kword)
+{
+ uint64_t blk = 0;
+
+ if (!strcmp(kword, "sb") ||!strcmp(kword, "superblock"))
+ blk = 0x10 * (4096 / sbd.bsize); /* superblock */
+ else if (!strcmp(kword, "root") || !strcmp(kword, "rootdir"))
+ blk = sbd.sd_sb.sb_root_dir.no_addr;
+ else if (!strcmp(kword, "master")) {
+ if (!gfs1)
+ blk = sbd.sd_sb.sb_master_dir.no_addr;
+ else
+ fprintf(stderr, "This is GFS1; there's no master directory.\n");
+ }
+ else if (!strcmp(kword, "jindex")) {
+ if (gfs1)
+ blk = sbd1->sb_jindex_di.no_addr;
+ else
+ blk = masterblock("jindex"); /* journal index */
+ }
+ else if (!gfs1 && !strcmp(kword, "per_node"))
+ blk = masterblock("per_node");
+ else if (!gfs1 && !strcmp(kword, "inum"))
+ blk = masterblock("inum");
+ else if (!strcmp(kword, "statfs")) {
+ if (gfs1)
+ blk = gfs1_license_di.no_addr;
+ else
+ blk = masterblock("statfs");
+ }
+ else if (!strcmp(kword, "rindex") || !strcmp(kword, "rgindex")) {
+ if (gfs1)
+ blk = sbd1->sb_rindex_di.no_addr;
+ else
+ blk = masterblock("rindex");
+ } else if (!strcmp(kword, "rgs")) {
+ blk = RGLIST_DUMMY_BLOCK;
+ } else if (!strcmp(kword, "quota")) {
+ if (gfs1)
+ blk = gfs1_quota_di.no_addr;
+ else
+ blk = masterblock("quota");
+ } else if (!strncmp(kword, "rg ", 3)) {
+ int rgnum = 0;
+
+ rgnum = atoi(kword + 3);
+ blk = get_rg_addr(rgnum);
+ } else if (kword[0]=='0' && kword[1]=='x') /* hex addr */
+ sscanf(kword, "%"SCNx64, &blk);/* retrieve in hex */
+ else
+ sscanf(kword, "%" PRIu64, &blk); /* retrieve decimal */
+
+ return blk;
+}
+
+/* ------------------------------------------------------------------------ */
/* goto_block - go to a desired block entered by the user */
/* ------------------------------------------------------------------------ */
uint64_t goto_block(void)
@@ -1518,30 +1695,8 @@ uint64_t goto_block(void)
memset(string, 0, sizeof(string));
sprintf(string,"%"PRId64, block);
if (bobgets(string, 1, 7, 16, &ch)) {
- if (!strcmp(string,"root"))
- temp_blk = sbd.sd_sb.sb_root_dir.no_addr;
- else if (!strcmp(string,"master")) {
- if (!gfs1)
- temp_blk = sbd.sd_sb.sb_master_dir.no_addr;
- else
- ; /* maybe put out an error message at some point */
- }
- else if (isalpha(string[0])) {
- if (gfs1) {
- if (!strcmp(string, "jindex"))
- temp_blk = sbd1->sb_jindex_di.no_addr;
- else if (!strcmp(string, "rindex"))
- temp_blk = sbd1->sb_rindex_di.no_addr;
- else if (!strcmp(string, "quota"))
- temp_blk = gfs1_quota_di.no_addr;
- }
- else {
- if (!strcmp(string, "rgs"))
- temp_blk = RGLIST_DUMMY_BLOCK;
- else
- temp_blk = masterblock(string);
- }
- }
+ if (isalnum(string[0]))
+ temp_blk = check_keywords(string);
else if (string[0] == '+') {
if (string[1] == '0' && string[2] == 'x')
sscanf(string, "%"SCNx64, &temp_blk);
@@ -1556,10 +1711,6 @@ uint64_t goto_block(void)
sscanf(string, "%" PRIu64, &temp_blk);
temp_blk -= block;
}
- else if (string[0] == '0' && string[1] == 'x')
- sscanf(string, "%"SCNx64, &temp_blk); /* retrieve in hex */
- else
- sscanf(string, "%" PRIu64, &temp_blk); /* retrieve decimal */
if (temp_blk == RGLIST_DUMMY_BLOCK || temp_blk < max_block) {
offset = 0;
@@ -1604,7 +1755,7 @@ void hex_edit(int *exitch)
int left_off;
int ch;
- left_off = ((block * bufsize) < 0xffffffff) ? 9 : 17;
+ left_off = ((block * sbd.bsize) < 0xffffffff) ? 9 : 17;
/* 8 and 16 char addresses on screen */
if (bobgets(estring, edit_row[dmode] + 3,
@@ -1637,7 +1788,7 @@ void hex_edit(int *exitch)
buf[offset + hexoffset] = ch;
}
do_lseek(sbd.device_fd, dev_offset);
- do_write(sbd.device_fd, buf, bufsize);
+ do_write(sbd.device_fd, buf, sbd.bsize);
fsync(sbd.device_fd);
}
}
@@ -1665,10 +1816,10 @@ void pageup(void)
if (dmode == GFS2_MODE || offset==0) {
block--;
if (dmode == HEX_MODE)
- offset = (bufsize % screen_chunk_size) > 0 ?
+ offset = (sbd.bsize % screen_chunk_size) > 0 ?
screen_chunk_size *
- (bufsize / screen_chunk_size) :
- bufsize - screen_chunk_size;
+ (sbd.bsize / screen_chunk_size) :
+ sbd.bsize - screen_chunk_size;
else
offset = 0;
}
@@ -1696,7 +1847,7 @@ void pagedn(void)
else {
start_row[dmode] = edit_row[dmode] = 0;
if (dmode == GFS2_MODE ||
- offset + screen_chunk_size >= bufsize) {
+ offset + screen_chunk_size >= sbd.bsize) {
block++;
offset = 0;
}
@@ -1802,7 +1953,7 @@ void interactive_mode(void)
edit_row[dmode] = 0;
}
else {
- block = 0x10 * (4096 / bufsize);
+ block = 0x10 * (4096 / sbd.bsize);
push_block(block);
offset = 0;
}
@@ -2033,7 +2184,7 @@ void dump_journal(const char *journal)
uint64_t jindex_block, jblock, j_size, jb;
int error, start_line, journal_num;
struct gfs2_dinode jdi;
- char jbuf[bufsize];
+ char jbuf[sbd.bsize];
struct gfs2_inode *j_inode = NULL;
start_line = line;
@@ -2077,16 +2228,16 @@ void dump_journal(const char *journal)
j_size = jdi.di_size;
}
- for (jb = 0; jb < j_size; jb += (gfs1 ? 1:bufsize)) {
+ for (jb = 0; jb < j_size; jb += (gfs1 ? 1:sbd.bsize)) {
if (gfs1) {
if (j_bh)
brelse(j_bh, not_updated);
j_bh = bread(&sbd, jblock + jb);
- memcpy(jbuf, j_bh->b_data, bufsize);
+ memcpy(jbuf, j_bh->b_data, sbd.bsize);
}
else
error = gfs2_readi(j_inode, (void *)&jbuf, jb,
- bufsize);
+ sbd.bsize);
if (!error) /* end of file */
break;
if (get_block_type(jbuf) == GFS2_METATYPE_LD) {
@@ -2111,7 +2262,7 @@ void dump_journal(const char *journal)
"Quota", "Final Entry", "Unknown"}};
print_gfs2("Block #%4llx: Log descriptor, ",
- jb / (gfs1 ? 1 : bufsize));
+ jb / (gfs1 ? 1 : sbd.bsize));
gfs2_log_descriptor_in(&ld, jbuf);
print_gfs2("type %d ", ld.ld_type);
@@ -2131,7 +2282,7 @@ void dump_journal(const char *journal)
else
b = (uint64_t *)(jbuf +
sizeof(struct gfs2_log_descriptor));
- while (*b && (char *)b < (jbuf + bufsize)) {
+ while (*b && (char *)b < (jbuf + sbd.bsize)) {
if (!termlines ||
(print_entry_ndx >= start_row[dmode] &&
((print_entry_ndx - start_row[dmode])+1) *
@@ -2152,16 +2303,17 @@ void dump_journal(const char *journal)
if (gfs1) {
gfs_log_header_in(&lh1, jbuf);
- print_gfs2("Block #%4llx: Log header: Seq"
- "= 0x%x, first = 0x%x tail = "
- "0x%x, last = 0x%x",
- jb, lh1.lh_sequence, lh1.lh_first,
- lh1.lh_tail, lh1.lh_last_dump);
+ print_gfs2("Block #%4llx: Log header: Flags = "
+ "%08x, Seq = 0x%x, first = 0x%x "
+ "tail = 0x%x, last = 0x%x",
+ jb, lh1.lh_flags, lh1.lh_sequence,
+ lh1.lh_first, lh1.lh_tail,
+ lh1.lh_last_dump);
} else {
gfs2_log_header_in(&lh, jbuf);
print_gfs2("Block #%4llx: Log header: Seq"
"= 0x%x, tail = 0x%x, blk = 0x%x",
- jb / bufsize, lh.lh_sequence,
+ jb / sbd.bsize, lh.lh_sequence,
lh.lh_tail, lh.lh_blkno);
}
eol(0);
@@ -2183,6 +2335,7 @@ void usage(void)
fprintf(stderr,"savemeta <file_system> <file> - save off your metadata for analysis and debugging.\n");
fprintf(stderr," (The intelligent way: assume bitmap is correct).\n");
fprintf(stderr,"savemetaslow - save off your metadata for analysis and debugging. The SLOW way (block by block).\n");
+ fprintf(stderr,"savergs - save off only the resource group information (rindex and rgs).\n");
fprintf(stderr,"restoremeta - restore metadata for debugging (DANGEROUS).\n");
fprintf(stderr,"rgcount - print how many RGs in the file system.\n");
fprintf(stderr,"rgflags rgnum [new flags] - print or modify flags for rg #rgnum (0 - X)\n");
@@ -2201,6 +2354,7 @@ void usage(void)
fprintf(stderr," rg X - print resource group X.\n");
fprintf(stderr," rgs - prints all the resource groups (rgs).\n");
fprintf(stderr," quota - prints the quota file.\n");
+ fprintf(stderr,"-s specifies a starting block such as root, rindex, quota, inum.\n");
fprintf(stderr,"-x print in hexmode.\n");
fprintf(stderr,"-h prints this help.\n\n");
fprintf(stderr,"Examples:\n");
@@ -2261,6 +2415,8 @@ void process_parameters(int argc, char *argv[], int pass)
termlines = 0;
else if (!strcasecmp(argv[i], "savemetaslow"))
termlines = 0;
+ else if (!strcasecmp(argv[i], "savergs"))
+ termlines = 0;
else if (!strcasecmp(argv[i], "printsavedmeta"))
restoremeta(argv[i+1], argv[i+2],
TRUE);
@@ -2276,8 +2432,25 @@ void process_parameters(int argc, char *argv[], int pass)
strcpy(device, argv[i]);
}
else { /* second pass */
- if (!termlines && !strchr(argv[i],'/')) { /* if print, no slash */
- if (!strcasecmp(argv[i], "-x"))
+ if (!strcasecmp(argv[i], "-s")) {
+ i++;
+ if (i >= argc - 1) {
+ printf("Error: starting block not specified with -s.\n");
+ printf("%s -s [starting block | keyword] <device>\n",
+ argv[0]);
+ printf("For example: %s -s \"rg 3\" /dev/exxon_vg/exxon_lv\n",
+ argv[0]);
+ exit(EXIT_FAILURE);
+ }
+ starting_blk = check_keywords(argv[i]);
+ }
+ else if (!termlines && !strchr(argv[i],'/')) { /* if print, no slash */
+ uint64_t keyword_blk;
+
+ keyword_blk = check_keywords(argv[i]);
+ if (keyword_blk)
+ push_block(keyword_blk);
+ else if (!strcasecmp(argv[i], "-x"))
dmode = HEX_MODE;
else if (argv[i][0] == '-') /* if it starts with a dash */
; /* ignore it--meant for pass == 0 */
@@ -2286,47 +2459,6 @@ void process_parameters(int argc, char *argv[], int pass)
else if (!strcmp(argv[i], "size"))
printf("Device size: %" PRIu64 " (0x%" PRIx64 ")\n",
max_block, max_block);
- else if (!strcmp(argv[i], "sb") ||
- !strcmp(argv[i], "superblock"))
- push_block(0x10 * (4096 / bufsize)); /* superblock */
- else if (!strcmp(argv[i], "root") ||
- !strcmp(argv[i], "rootdir"))
- push_block(sbd.sd_sb.sb_root_dir.no_addr);
- else if (!strcmp(argv[i], "master")) {
- if (!gfs1)
- push_block(sbd.sd_sb.sb_master_dir.no_addr);
- else
- fprintf(stderr, "This is GFS1; there's no master directory.\n");
- }
- else if (!strcmp(argv[i], "jindex")) {
- if (gfs1)
- push_block(sbd1->sb_jindex_di.no_addr);
- else
- push_block(masterblock("jindex"));/* journal index */
- }
- else if (!gfs1 && !strcmp(argv[i], "per_node"))
- push_block(masterblock("per_node"));
- else if (!gfs1 && !strcmp(argv[i], "inum"))
- push_block(masterblock("inum"));
- else if (!gfs1 && !strcmp(argv[i], "statfs"))
- push_block(masterblock("statfs"));
- else if (!strcmp(argv[i], "rindex") ||
- !strcmp(argv[i], "rgindex")) {
- if (gfs1)
- push_block(sbd1->sb_rindex_di.no_addr);
- else
- push_block(masterblock("rindex"));
- }
- else if (!strcmp(argv[i], "rgs")) {
- if (!gfs1)
- push_block(RGLIST_DUMMY_BLOCK);
- }
- else if (!strcmp(argv[i], "quota")) {
- if (gfs1)
- push_block(gfs1_quota_di.no_addr);
- else
- push_block(masterblock("quota"));
- }
else if (!strcmp(argv[i], "rgcount"))
rgcount();
else if (!strcmp(argv[i], "rgflags")) {
@@ -2379,13 +2511,11 @@ void process_parameters(int argc, char *argv[], int pass)
exit(EXIT_SUCCESS);
}
else if (!strcasecmp(argv[i], "savemeta"))
- savemeta(argv[i+2], FALSE);
+ savemeta(argv[i+2], 0);
else if (!strcasecmp(argv[i], "savemetaslow"))
- savemeta(argv[i+2], TRUE);
- else if (argv[i][0]=='0' && argv[i][1]=='x') { /* hex addr */
- sscanf(argv[i], "%"SCNx64, &temp_blk);/* retrieve in hex */
- push_block(temp_blk);
- }
+ savemeta(argv[i+2], 1);
+ else if (!strcasecmp(argv[i], "savergs"))
+ savemeta(argv[i+2], 2);
else if (isdigit(argv[i][0])) { /* decimal addr */
sscanf(argv[i], "%"SCNd64, &temp_blk);
push_block(temp_blk);
@@ -2431,8 +2561,9 @@ int main(int argc, char *argv[])
memset(edit_size, 0, sizeof(edit_size));
memset(last_entry_onscreen, 0, sizeof(last_entry_onscreen));
dmode = HEX_MODE;
- type_alloc(buf, char, bufsize); /* allocate/malloc a new 4K buffer */
- block = 0x10;
+ sbd.bsize = 4096;
+ type_alloc(buf, char, sbd.bsize); /* allocate/malloc a new 4K buffer */
+ block = starting_blk = 0x10;
for (i = 0; i < BLOCK_STACK_SIZE; i++) {
blockstack[i].dmode = dmode;
blockstack[i].block = block;
@@ -2454,15 +2585,17 @@ int main(int argc, char *argv[])
fd = open(device, O_RDWR);
if (fd < 0)
die("can't open %s: %s\n", device, strerror(errno));
- max_block = lseek(fd, 0, SEEK_END) / bufsize;
+ max_block = lseek(fd, 0, SEEK_END) / sbd.bsize;
read_superblock(fd);
+ max_block = lseek(fd, 0, SEEK_END) / sbd.bsize;
strcpy(sbd.device_name, device);
if (!gfs1)
read_master_dir();
block_in_mem = -1;
- if (!termlines) /* if printing to stdout */
- process_parameters(argc, argv, 1); /* get what to print from cmdline */
+ process_parameters(argc, argv, 1); /* get what to print from cmdline */
+
+ block = blockstack[0].block = starting_blk * (4096 / sbd.bsize);
if (termlines)
interactive_mode();
diff --git a/gfs2/edit/hexedit.h b/gfs2/edit/hexedit.h
index 4778ab1..40d1d58 100644
--- a/gfs2/edit/hexedit.h
+++ b/gfs2/edit/hexedit.h
@@ -74,7 +74,6 @@ EXTERN char estring[1024]; /* edit string */
EXTERN uint64_t dev_offset INIT(0);
EXTERN uint64_t max_block INIT(0);
EXTERN char *buf INIT(NULL);
-EXTERN uint64_t bufsize INIT(4096);
EXTERN int termlines INIT(30);
EXTERN int termcols INIT(80);
EXTERN int insert INIT(0);
@@ -101,6 +100,7 @@ EXTERN WINDOW *wind;
EXTERN int gfs1 INIT(0);
EXTERN int editing INIT(0);
EXTERN uint64_t temp_blk;
+EXTERN uint64_t starting_blk;
struct gfs_jindex {
uint64_t ji_addr; /* starting block of the journal */
@@ -135,6 +135,38 @@ struct gfs_log_header {
char lh_reserved[64];
};
+struct gfs_rindex {
+ uint64_t ri_addr; /* block # of 1st block (header) in rgrp */
+ uint32_t ri_length; /* # fs blocks containing rgrp header & bitmap */
+ uint32_t ri_pad;
+
+ uint64_t ri_data1; /* block # of first data/meta block in rgrp */
+ uint32_t ri_data; /* number (qty) of data/meta blocks in rgrp */
+
+ uint32_t ri_bitbytes; /* total # bytes used by block alloc bitmap */
+
+ char ri_reserved[64];
+};
+
+struct gfs_rgrp {
+ struct gfs2_meta_header rg_header;
+
+ uint32_t rg_flags; /* ?? */
+
+ uint32_t rg_free; /* Number (qty) of free data blocks */
+
+ /* Dinodes are USEDMETA, but are handled separately from other METAs */
+ uint32_t rg_useddi; /* Number (qty) of dinodes (used or free) */
+ uint32_t rg_freedi; /* Number (qty) of unused (free) dinodes */
+ struct gfs2_inum rg_freedi_list; /* 1st block in chain of free dinodes */
+
+ /* These META statistics do not include dinodes (used or free) */
+ uint32_t rg_usedmeta; /* Number (qty) of used metadata blocks */
+ uint32_t rg_freemeta; /* Number (qty) of unused metadata blocks */
+
+ char rg_reserved[64];
+};
+
EXTERN int block_is_jindex(void);
EXTERN int block_is_rindex(void);
EXTERN int block_is_inum_file(void);
diff --git a/gfs2/edit/savemeta.c b/gfs2/edit/savemeta.c
index c73dc09..cff2f30 100644
--- a/gfs2/edit/savemeta.c
+++ b/gfs2/edit/savemeta.c
@@ -49,6 +49,7 @@ struct saved_metablock *savedata;
uint64_t last_fs_block, last_reported_block, blks_saved, total_out, pct;
struct gfs2_block_list *blocklist = NULL;
uint64_t journal_blocks[MAX_JOURNALS_SAVED];
+uint64_t gfs1_journal_size = 0; /* in blocks */
int journals_found = 0;
extern void read_superblock(void);
@@ -383,7 +384,7 @@ int get_gfs_struct_info(char *buf, int *block_type, int *struct_len)
struct gfs2_meta_header mh;
*block_type = 0;
- *struct_len = bufsize;
+ *struct_len = sbd.bsize;
gfs2_meta_header_in(&mh, buf);
if (mh.mh_magic != GFS2_MAGIC)
@@ -396,19 +397,19 @@ int get_gfs_struct_info(char *buf, int *block_type, int *struct_len)
*struct_len = sizeof(struct gfs_sb);
break;
case GFS2_METATYPE_RG: /* 2 (rsrc grp hdr) */
- *struct_len = bufsize; /*sizeof(struct gfs_rgrp);*/
+ *struct_len = sbd.bsize; /*sizeof(struct gfs_rgrp);*/
break;
case GFS2_METATYPE_RB: /* 3 (rsrc grp bitblk) */
- *struct_len = bufsize;
+ *struct_len = sbd.bsize;
break;
case GFS2_METATYPE_DI: /* 4 (disk inode) */
- *struct_len = bufsize; /*sizeof(struct gfs_dinode);*/
+ *struct_len = sbd.bsize; /*sizeof(struct gfs_dinode);*/
break;
case GFS2_METATYPE_IN: /* 5 (indir inode blklst) */
- *struct_len = bufsize; /*sizeof(struct gfs_indirect);*/
+ *struct_len = sbd.bsize; /*sizeof(struct gfs_indirect);*/
break;
case GFS2_METATYPE_LF: /* 6 (leaf dinode blklst) */
- *struct_len = bufsize; /*sizeof(struct gfs_leaf);*/
+ *struct_len = sbd.bsize; /*sizeof(struct gfs_leaf);*/
break;
case GFS2_METATYPE_JD: /* 7 (journal data) */
*struct_len = sizeof(struct gfs2_meta_header);
@@ -417,16 +418,16 @@ int get_gfs_struct_info(char *buf, int *block_type, int *struct_len)
*struct_len = sizeof(struct gfs2_log_header);
break;
case GFS2_METATYPE_LD: /* 9 (log descriptor) */
- *struct_len = bufsize;
+ *struct_len = sbd.bsize;
break;
case GFS2_METATYPE_EA: /* 10 (extended attr hdr) */
- *struct_len = bufsize;
+ *struct_len = sbd.bsize;
break;
case GFS2_METATYPE_ED: /* 11 (extended attr data) */
- *struct_len = bufsize;
+ *struct_len = sbd.bsize;
break;
default:
- *struct_len = bufsize;
+ *struct_len = sbd.bsize;
break;
}
return 0;
@@ -509,8 +510,8 @@ int save_block(int fd, int out_fd, uint64_t blk)
return 0;
}
memset(savedata, 0, sizeof(struct saved_metablock));
- do_lseek(fd, blk * bufsize);
- do_read(fd, savedata->buf, bufsize); /* read in the block */
+ do_lseek(fd, blk * sbd.bsize);
+ do_read(fd, savedata->buf, sbd.bsize); /* read in the block */
/* If this isn't metadata and isn't a system file, we don't want it.
Note that we're checking "block" here rather than blk. That's
@@ -522,7 +523,7 @@ int save_block(int fd, int out_fd, uint64_t blk)
return 0; /* Not metadata, and not system file, so skip it */
trailing0 = 0;
p = &savedata->buf[blklen - 1];
- while (*p=='\0' && trailing0 < bufsize) {
+ while (*p=='\0' && trailing0 < sbd.bsize) {
trailing0++;
p--;
}
@@ -597,7 +598,7 @@ void save_inode_data(int out_fd)
for (i = 0; i < GFS2_MAX_META_HEIGHT; i++)
osi_list_init(&metalist[i]);
- buf = malloc(bufsize);
+ buf = malloc(sbd.bsize);
metabh = bread(&sbd, block);
inode = inode_get(&sbd, metabh);
height = inode->i_di.di_height;
@@ -631,7 +632,7 @@ void save_inode_data(int out_fd)
/* Process directory exhash inodes */
if (S_ISDIR(inode->i_di.di_mode)) {
if (inode->i_di.di_flags & GFS2_DIF_EXHASH) {
- save_indirect_blocks(out_fd, cur_list, mybh,
+ save_indirect_blocks(out_fd, cur_list, metabh,
height, 0);
}
}
@@ -645,7 +646,7 @@ void save_inode_data(int out_fd)
gfs2_meta_header_in(&mh, metabh->b_data);
if (mh.mh_magic == GFS2_MAGIC) {
for (e = sizeof(struct gfs2_meta_header);
- e < bufsize; e += ea.ea_rec_len) {
+ e < sbd.bsize; e += ea.ea_rec_len) {
uint64_t blk, *b;
int charoff;
@@ -701,7 +702,9 @@ void get_journal_inode_blocks(void)
struct gfs_jindex ji;
char jbuf[sizeof(struct gfs_jindex)];
+ bh = bread(&sbd, sbd1->sb_jindex_di.no_addr);
j_inode = inode_get(&sbd, bh);
+ brelse(bh, not_updated);
amt = gfs2_readi(j_inode, (void *)&jbuf,
journal * sizeof(struct gfs_jindex),
sizeof(struct gfs_jindex));
@@ -709,7 +712,7 @@ void get_journal_inode_blocks(void)
break;
gfs_jindex_in(&ji, jbuf);
jblock = ji.ji_addr;
- inode_put(j_inode, not_updated);
+ gfs1_journal_size = ji.ji_nsegment * 16;
} else {
if (journal > indirect->ii[0].dirents - 3)
break;
@@ -723,15 +726,17 @@ void get_journal_inode_blocks(void)
}
}
-void savemeta(const char *out_fn, int slow)
+void savemeta(const char *out_fn, int saveoption)
{
int out_fd;
+ int slow;
osi_list_t *tmp;
uint64_t memreq;
int rgcount;
uint64_t jindex_block;
struct gfs2_buffer_head *bh;
+ slow = (saveoption == 1);
sbd.md.journals = 1;
if (!out_fn)
@@ -748,7 +753,7 @@ void savemeta(const char *out_fn, int slow)
do_lseek(sbd.device_fd, 0);
blks_saved = total_out = last_reported_block = 0;
- bufsize = BUFSIZE;
+ sbd.bsize = BUFSIZE;
if (!slow) {
int i;
@@ -760,14 +765,14 @@ void savemeta(const char *out_fn, int slow)
osi_list_init(&sbd.buf_hash[i]);
sbd.sd_sb.sb_bsize = GFS2_DEFAULT_BSIZE;
compute_constants(&sbd);
- if(read_sb(&sbd) < 0)
+ if(!gfs1 && read_sb(&sbd) < 0)
slow = TRUE;
else
- bufsize = sbd.bsize = sbd.sd_sb.sb_bsize;
+ sbd.bsize = sbd.bsize = sbd.sd_sb.sb_bsize;
}
- last_fs_block = lseek(sbd.device_fd, 0, SEEK_END) / bufsize;
- printf("There are %" PRIu64 " blocks of %" PRIu64 " bytes.\n",
- last_fs_block, bufsize);
+ last_fs_block = lseek(sbd.device_fd, 0, SEEK_END) / sbd.bsize;
+ printf("There are %" PRIu64 " blocks of %u bytes.\n",
+ last_fs_block, sbd.bsize);
if (!slow) {
if (gfs1) {
sbd.md.riinode =
@@ -807,7 +812,25 @@ void savemeta(const char *out_fn, int slow)
get_journal_inode_blocks();
if (!slow) {
/* Save off the superblock */
- save_block(sbd.device_fd, out_fd, 0x10 * (4096 / bufsize));
+ save_block(sbd.device_fd, out_fd, 0x10 * (4096 / sbd.bsize));
+ /* If this is gfs1, save off the rindex because it's not
+ part of the file system as it is in gfs2. */
+ if (gfs1) {
+ int j;
+
+ block = sbd1->sb_rindex_di.no_addr;
+ save_block(sbd.device_fd, out_fd, block);
+ save_inode_data(out_fd);
+ /* In GFS1, journals aren't part of the RG space */
+ for (j = 0; j < journals_found; j++) {
+ log_debug("Saving journal #%d\n", j + 1);
+ for (block = journal_blocks[j];
+ block < journal_blocks[j] +
+ gfs1_journal_size;
+ block++)
+ save_block(sbd.device_fd, out_fd, block);
+ }
+ }
/* Walk through the resource groups saving everything within */
for (tmp = sbd.rglist.next; tmp != &sbd.rglist;
tmp = tmp->next){
@@ -834,15 +857,17 @@ void savemeta(const char *out_fn, int slow)
save_block(sbd.device_fd, out_fd, block);
}
/* Save off the other metadata: inodes, etc. */
- while (!gfs2_next_rg_meta(rgd, &block, first)) {
- int blktype;
-
- warm_fuzzy_stuff(block, FALSE, TRUE);
- blktype = save_block(sbd.device_fd, out_fd,
- block);
- if (blktype == GFS2_METATYPE_DI)
- save_inode_data(out_fd);
- first = 0;
+ if (saveoption != 2) {
+ while (!gfs2_next_rg_meta(rgd, &block, first)) {
+ int blktype;
+
+ warm_fuzzy_stuff(block, FALSE, TRUE);
+ blktype = save_block(sbd.device_fd,
+ out_fd, block);
+ if (blktype == GFS2_METATYPE_DI)
+ save_inode_data(out_fd);
+ first = 0;
+ }
}
gfs2_rgrp_relse(rgd, not_updated);
}
@@ -886,7 +911,7 @@ int restore_data(int fd, int in_fd, int printblocksonly)
fprintf(stderr, "Error reading from file.\n");
return -1;
}
- total_out += bufsize;
+ total_out += sbd.bsize;
savedata->blk = be64_to_cpu(buf64);
if (!printblocksonly &&
last_fs_block && savedata->blk >= last_fs_block) {
@@ -918,15 +943,15 @@ int restore_data(int fd, int in_fd, int printblocksonly)
fprintf(stderr,"Error: Invalid superblock data.\n");
return -1;
}
- bufsize = sbd.sd_sb.sb_bsize;
+ sbd.bsize = sbd.sd_sb.sb_bsize;
if (!printblocksonly) {
last_fs_block =
lseek(fd, 0, SEEK_END) /
- bufsize;
- printf("There are %" PRIu64 " blocks of %" \
- PRIu64 " bytes in the destination" \
+ sbd.bsize;
+ printf("There are %" PRIu64 " blocks of " \
+ "%u bytes in the destination" \
" file system.\n\n",
- last_fs_block, bufsize);
+ last_fs_block, sbd.bsize);
}
first = 0;
}
@@ -942,8 +967,8 @@ int restore_data(int fd, int in_fd, int printblocksonly)
"device; quitting.\n");
break;
}
- do_lseek(fd, savedata->blk * bufsize);
- do_write(fd, savedata->buf, bufsize);
+ do_lseek(fd, savedata->blk * sbd.bsize);
+ do_write(fd, savedata->buf, sbd.bsize);
writes++;
}
blks_saved++;
diff --git a/gfs2/man/gfs2_edit.8 b/gfs2/man/gfs2_edit.8
index 9e62eba..36a6018 100644
--- a/gfs2/man/gfs2_edit.8
+++ b/gfs2/man/gfs2_edit.8
@@ -44,6 +44,8 @@ You can specify the following data structure names with the -p option.
\fIrindex\fR, \fIrgindex\fR - Print the resource group index system file.
+\fIrg X\fR - Print the resource group information for RG X (zero-based).
+
\fIrgs\fR - Print the resource group information.
\fIquota\fR - Print the contents of the system quota file.
@@ -71,6 +73,11 @@ For example, "gfs2_edit -p inum statfs /dev/sda1" prints the system inum
file and the system statfs file on /dev/sda1.
.TP
+\fB-p\fs [\fIstructure\fR | \fIblock\fR]
+Specify a starting block for interactive mode. Any of the keywords found
+in the -p option may be specified. If you want to start on a particular
+resource group, specify it in quotes, e.g. -p "rg 3"
+.TP
\fB-h, -help, -usage\fP
Print help information.
.TP
@@ -85,6 +92,27 @@ Print program version information only.
Print in hex mode.
.TP
+\fBrg\fP \fI<rg>\fR \fI<device>\fR
+Print the contents of Resource Group \fI<rg>\fR on \fI<device>\fR.
+
+\fI<rg>\fR is a number from 0 to X - 1, where X is the number of RGs.
+.TP
+\fBrgcount\fP \fI<device>\fR
+Print the number of Resource Groups in the file system on \fI<device>\fR.
+.TP
+\fBrgflags\fP \fI<rg>\fR [\fInew_value\fR] \fI<device>\fR
+Print and/or modify the rg_flags value of Resource Group \fI<rg>\fR on
+\fI<device>\fR.
+
+\fI<rg>\fR is a number from 0 to X - 1, where X is the number of RGs.
+If \fInew_value\fR is not specified, the current rg_flags value will be
+printed but not modified. If \fInew_value\fR is specified, the rg_flags
+field will be overwritten with the new value.
+.TP
+\fBprintsavedmeta\fP \fI<filename>\fR
+Print off a list of blocks from <filename> that were saved with the savemeta
+option.
+.TP
\fBsavemeta\fP \fI<device>\fR \fI<filename>\fR
Save off the GFS2 metadata (not user data) for the file system on the
specified device to a file given by <filename>. You can use this option
@@ -103,6 +131,10 @@ block in the file system for metadata. This option is less prone to failure
due to file system corruption than the savemeta option, but it is
extremely slow.
.TP
+\fBsavergs\fP \fI<device>\fR \fI<filename>\fR
+Save off only the GFS2 resource group metadata for the file system on the
+specified device to a file given by <filename>.
+.TP
\fBrestoremeta\fP \fI<filename>\fR \fI<dest device>\fR
Take a file created with the savemeta option and restores its
contents on top of the specified destination device. \fBWARNING\fP:
@@ -128,7 +160,7 @@ You use the m key to switch between the modes, as described below.
The modes are as follows:
.TP
Hex mode (default)
-Display or edits blocks of the file system in hexadecimal and ascii.
+Display or edit blocks of the file system in hexadecimal and ascii.
Lines at the top indicate the currently displayed block in both hex and
decimal. If the block contains a GFS2 data structure, the name of that
@@ -267,8 +299,23 @@ Print the contents of block 16250 of /dev/sda1 in hex.
gfs2_edit -p 12345 /dev/sdc2
Print the gfs2 data structure at block 12345.
+.TP
+gfs2_edit rgcount /dev/sdb1
+Print how many Resource Groups exist for /dev/sdb1.
+
+.TP
+gfs2_edit -p rg 17 /dev/sdb1
+Print the contents of the eighteenth Resource Group on /dev/sdb1.
+
+.TP
+gfs2_edit rgflags 3 /dev/sdb1
+Print the rg_flags value for the fourth Resource Group on /dev/sdb1.
+
+.TP
+gfs2_edit rgflags 3 8 /dev/sdb1
+Set the GFS2_RGF_NOALLOC flag on for the fourth Resource Group on /dev/sdb1.
+
.SH KNOWN BUGS
.TP
The directory code does not work well. It might be confused
by directory "sentinel" entries.
-
hooks/post-receive
--
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