[Cluster-devel] Cluster Project branch, master, updated. cluster-2.99.04-6-g05b3793
rpeterso at sourceware.org
rpeterso at sourceware.org
Mon Jun 9 19:32:54 UTC 2008
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- Log -----------------------------------------------------------------
commit 05b3793aa23b44f2c4c6e139f8fa3658eb6db311
Author: Bob Peterson <rpeterso at redhat.com>
Date: Mon Jun 9 14:13:08 2008 -0500
Fix compiler warning.
commit cc3c26a4fef64eaee072ff62f4bb6194a6c2fa3d
Author: Bob Peterson <rpeterso at redhat.com>
Date: Mon Jun 9 13:52:50 2008 -0500
Ability to specify starting block or structure with -s
commit 4b6c6cc589ef333235316f5813ef47cbe3e2b360
Author: Bob Peterson <rpeterso at redhat.com>
Date: Mon Jun 9 13:37:45 2008 -0500
Allow keywords in block number input
-----------------------------------------------------------------------
Summary of changes:
gfs2/edit/hexedit.c | 228 ++++++++++++++++++++++++-------------------------
gfs2/edit/hexedit.h | 1 +
gfs2/man/gfs2_edit.8 | 7 ++-
3 files changed, 119 insertions(+), 117 deletions(-)
diff --git a/gfs2/edit/hexedit.c b/gfs2/edit/hexedit.c
index 080daf4..99af162 100644
--- a/gfs2/edit/hexedit.c
+++ b/gfs2/edit/hexedit.c
@@ -712,6 +712,30 @@ void gfs_rgrp_print(struct gfs_rgrp *rg)
}
/* ------------------------------------------------------------------------ */
+/* 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");
+ 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 / 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) */
@@ -724,24 +748,10 @@ void set_rgrp_flags(int rgnum, uint32_t new_flags, int modify, int full)
struct gfs2_rgrp rg2;
struct gfs_rgrp rg1;
} rg;
- struct gfs2_buffer_head *bh, *ribh;
- uint64_t rgblk, block;
- struct gfs2_inode *riinode;
+ struct gfs2_buffer_head *bh;
+ uint64_t rgblk;
- 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 / risize()) {
- fprintf(stderr, "Error: File system only has %lld RGs.\n",
- riinode->i_di.di_size / risize());
- inode_put(riinode, not_updated);
- brelse(ribh, not_updated);
- return;
- }
- rgblk = find_rgrp_block(riinode, rgnum);
+ rgblk = get_rg_addr(rgnum);
bh = bread(&sbd, rgblk);
if (gfs1)
gfs_rgrp_in(&rg.rg1, bh->b_data);
@@ -773,7 +783,6 @@ void set_rgrp_flags(int rgnum, uint32_t new_flags, int modify, int full)
(unsigned long long)rgblk, rg.rg2.rg_flags);
brelse(bh, not_updated);
}
- inode_put(riinode, not_updated);
if (modify)
bsync(&sbd);
}
@@ -1621,6 +1630,65 @@ 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)
@@ -1631,32 +1699,8 @@ 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 {
- 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);
@@ -1671,10 +1715,6 @@ 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;
@@ -2317,6 +2357,7 @@ 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");
@@ -2394,8 +2435,25 @@ 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 */
@@ -2404,64 +2462,6 @@ 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 / sbd.bsize)); /* 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) {
- fprintf(stderr, "Error: 'master' is invalid "
- "for GFS (1) file systems.\n");
- exit(-1);
- }
- push_block(sbd.sd_sb.sb_master_dir.no_addr);
- }
- 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 (!strcmp(argv[i], "per_node")) {
- if (gfs1) {
- fprintf(stderr, "Error: 'per_node' is invalid "
- "for GFS (1) file systems.\n");
- exit(-1);
- }
- push_block(masterblock("per_node"));
- }
- else if (!strcmp(argv[i], "inum")) {
- if (gfs1) {
- fprintf(stderr, "Error: 'inum' is invalid "
- "for GFS (1) file systems.\n");
- exit(-1);
- }
- push_block(masterblock("inum"));
- }
- else if (!strcmp(argv[i], "statfs")) {
- if (gfs1)
- push_block(gfs1_license_di.no_addr);
- else
- 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")) {
- 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")) {
@@ -2519,10 +2519,6 @@ void process_parameters(int argc, char *argv[], int pass)
savemeta(argv[i+2], 1);
else if (!strcasecmp(argv[i], "savergs"))
savemeta(argv[i+2], 2);
- 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);
- }
else if (isdigit(argv[i][0])) { /* decimal addr */
sscanf(argv[i], "%"SCNd64, &temp_blk);
push_block(temp_blk);
@@ -2570,7 +2566,7 @@ int main(int argc, char *argv[])
dmode = HEX_MODE;
sbd.bsize = 4096;
type_alloc(buf, char, sbd.bsize); /* allocate/malloc a new 4K buffer */
- block = 0x10;
+ block = starting_blk = 0x10;
for (i = 0; i < BLOCK_STACK_SIZE; i++) {
blockstack[i].dmode = dmode;
blockstack[i].block = block;
@@ -2596,13 +2592,13 @@ int main(int argc, char *argv[])
read_superblock(fd);
max_block = lseek(fd, 0, SEEK_END) / sbd.bsize;
- blockstack[0].block = 0x10 * (4096 / 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 0afe1e3..2486b04 100644
--- a/gfs2/edit/hexedit.h
+++ b/gfs2/edit/hexedit.h
@@ -87,6 +87,7 @@ 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 */
diff --git a/gfs2/man/gfs2_edit.8 b/gfs2/man/gfs2_edit.8
index 3565680..0be8bf8 100644
--- a/gfs2/man/gfs2_edit.8
+++ b/gfs2/man/gfs2_edit.8
@@ -42,7 +42,7 @@ 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.
+\fIrg X\fR - Print the resource group information for RG X (zero-based).
\fIrgs\fR - Print the resource group information.
@@ -71,6 +71,11 @@ For example, "gfs2_edit -p inum statfs /dev/sda1" prints the system inum
file and the system statfs file on /dev/sda1.
.TP
+\fB-s\fP [\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. For example, gfs2_edit -s "rg 3"
+.TP
\fB-h, -help, -usage\fP
Print help information.
.TP
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