void
HandleVolume(struct DiskPartition64 *dp, char *name)
{
struct VolumeHeader header;
struct VolumeDiskHeader diskHeader;
struct afs_stat status, stat;
int fd;
Volume *vp;
IHandle_t *ih;
char headerName[1024];
if (online) {
printf("volinfo: -online not supported\n");
exit(1);
} else {
afs_int32 n;
(void)afs_snprintf(headerName, sizeof headerName, "%s/%s",
VPartitionPath(dp), name);
if ((fd = afs_open(headerName, O_RDONLY)) == -1
|| afs_fstat(fd, &status) == -1) {
printf("Volinfo: Cannot read volume header %s\n", name);
close(fd);
exit(1);
}
n = read(fd, &diskHeader, sizeof(diskHeader));
if (n != sizeof(diskHeader)
|| diskHeader.stamp.magic != VOLUMEHEADERMAGIC) {
printf("Volinfo: Error reading volume header %s\n", name);
exit(1);
}
if (diskHeader.stamp.version != VOLUMEHEADERVERSION) {
printf
("Volinfo: Volume %s, version number is incorrect; volume needs salvage\n",
name);
exit(1);
}
DiskToVolumeHeader(&header, &diskHeader);
if (dheader) {
FdHandle_t *fdP;
afs_sfsize_t size = 0;
afs_sfsize_t code;
if (afs_fstat(fd, &stat) == -1) {
perror("stat");
exit(1);
}
if (!dsizeOnly && !saveinodes) {
size = stat.st_size;
printf("Volume header (size = %d):\n", (int)size);
printf("\tstamp\t= 0x%x\n", header.stamp.version);
printf("\tVolId\t= %u\n", header.id);
}
IH_INIT(ih, dp->device, header.parent, header.volumeInfo);
fdP = IH_OPEN(ih);
if (fdP == NULL) {
perror("opening volume info");
exit(1);
}
code = FDH_SIZE(fdP);
if (code == -1) {
perror("fstat");
exit(1);
}
FDH_REALLYCLOSE(fdP);
IH_RELEASE(ih);
size += code;
if (!dsizeOnly && !saveinodes) {
printf("\tparent\t= %u\n", header.parent);
printf("\tInfo inode\t= %s (size = %d)\n",
PrintInode(NULL, header.volumeInfo), (int)code);
}
IH_INIT(ih, dp->device, header.parent, header.smallVnodeIndex);
fdP = IH_OPEN(ih);
if (fdP == NULL) {
perror("opening small vnode index");
exit(1);
}
code = FDH_SIZE(fdP);
if (code == -1) {
perror("fstat");
exit(1);
}
FDH_REALLYCLOSE(fdP);
IH_RELEASE(ih);
size += code;
if (!dsizeOnly && !saveinodes) {
printf("\tSmall inode\t= %s (size = %d)\n",
PrintInode(NULL, header.smallVnodeIndex), (int)code);
}
IH_INIT(ih, dp->device, header.parent, header.largeVnodeIndex);
fdP = IH_OPEN(ih);
if (fdP == NULL) {
perror("opening large vnode index");
exit(1);
}
code = FDH_SIZE(fdP);
if (code == -1) {
perror("fstat");
exit(1);
}
FDH_REALLYCLOSE(fdP);
IH_RELEASE(ih);
size += code;
if (!dsizeOnly && !saveinodes) {
printf("\tLarge inode\t= %s (size = %d)\n",
PrintInode(NULL, header.largeVnodeIndex), (int)code);
#ifndef AFS_NT40_ENV
printf("Total aux volume size = %d\n\n", (int)size);
#endif
}
#ifdef AFS_NAMEI_ENV
IH_INIT(ih, dp->device, header.parent, header.linkTable);
fdP = IH_OPEN(ih);
if (fdP == NULL) {
perror("opening link table index");
exit(1);
}
code = FDH_SIZE(fdP);
if (code == -1) {
perror("fstat");
exit(1);
}
FDH_REALLYCLOSE(fdP);
IH_RELEASE(ih);
size += code;
if (!dsizeOnly && !saveinodes) {
printf("\tLink inode\t= %s (size = %d)\n",
PrintInode(NULL, header.linkTable), (int)code);
printf("Total aux volume size = %d\n\n", (int)size);
}
#endif
Vauxsize = size;
Vauxsize_k = size / 1024;
}
close(fd);
vp = AttachVolume(dp, name, &header);
if (!vp) {
printf("Volinfo: Error attaching volume header %s\n", name);
return;
}
}
PrintHeader(vp);
if (DumpVnodes) {
if (!dsizeOnly && !saveinodes)
printf("\nLarge vnodes (directories)\n");
PrintVnodes(vp, vLarge);
if (!dsizeOnly && !saveinodes) {
printf("\nSmall vnodes(files, symbolic links)\n");
fflush(stdout);
}
if (saveinodes)
printf("Saving all volume files to current directory ...\n");
PrintVnodes(vp, vSmall);
}
if (dsizeOnly) {
totvolsize = Vauxsize_k + Vvnodesize_k;
if (saveinodes)
printf
("Volume-Id\t Volsize Auxsize Inodesize AVolsize SizeDiff (VolName)\n");
printf("%u\t%9d%9d%10d%10d%9d\t%24s\n", V_id(vp), Vdiskused,
Vauxsize_k, Vvnodesize_k, totvolsize, totvolsize - Vdiskused,
V_name(vp));
}
free(vp->header);
free(vp);
}
static int
DumpFile(int dumpfd, int vnode, FdHandle_t * handleP, struct VnodeDiskObject *v)
{
int code = 0, failed_seek = 0, failed_write = 0;
afs_int32 pad = 0;
afs_int32 offset = 0;
afs_sfsize_t n, nbytes, howMany, howBig;
byte *p;
#ifndef AFS_NT40_ENV
struct afs_stat status;
#endif
afs_sfsize_t size, tmpsize;
#ifdef AFS_AIX_ENV
#include <sys/statfs.h>
struct statfs tstatfs;
#endif
if (verbose)
fprintf(stderr, "dumping file for vnode %d\n", vnode);
#ifdef AFS_NT40_ENV
howBig = _filelength(handleP->fd_fd);
howMany = 4096;
#else
afs_fstat(handleP->fd_fd, &status);
howBig = status.st_size;
#ifdef AFS_AIX_ENV
/* Unfortunately in AIX valuable fields such as st_blksize are
* gone from the stat structure.
*/
fstatfs(handleP->fd_fd, &tstatfs);
howMany = tstatfs.f_bsize;
#else
howMany = status.st_blksize;
#endif /* AFS_AIX_ENV */
#endif /* AFS_NT40_ENV */
size = FDH_SIZE(handleP);
if (verbose)
fprintf(stderr, " howBig = %u, howMany = %u, fdh size = %u\n",
howBig, howMany, size);
#ifdef AFS_LARGEFILE_ENV
{
afs_uint32 hi, lo;
SplitInt64(size, hi, lo);
if (hi == 0L) {
code = DumpInt32(dumpfd, 'f', lo);
} else {
code = DumpDouble(dumpfd, 'h', hi, lo);
}
}
#else /* !AFS_LARGEFILE_ENV */
code = DumpInt32(dumpfd, 'f', size);
#endif /* !AFS_LARGEFILE_ENV */
if (code) {
return VOLSERDUMPERROR;
}
p = (unsigned char *)malloc(howMany);
if (!p) {
fprintf(stderr, "out of memory!\n");
return VOLSERDUMPERROR;
}
/* loop through whole file, while we still have bytes left, and no errors, in chunks of howMany bytes */
for (nbytes = size; (nbytes && !failed_write); nbytes -= howMany) {
if (nbytes < howMany)
howMany = nbytes;
/* Read the data - unless we know we can't */
n = (failed_seek ? 0 : FDH_READ(handleP, p, howMany));
/* If read any good data and we null padded previously, log the
* amount that we had null padded.
*/
if ((n > 0) && pad) {
fprintf(stderr, "Null padding file %d bytes at offset %u\n", pad,
offset);
pad = 0;
}
/* If didn't read enough data, null padd the rest of the buffer. This
* can happen if, for instance, the media has some bad spots. We don't
* want to quit the dump, so we start null padding.
*/
if (n < howMany) {
if (verbose) fprintf(stderr, " read %u instead of %u bytes.\n", n, howMany);
/* Record the read error */
if (n < 0) {
n = 0;
fprintf(stderr, "Error %d reading inode %s for vnode %d\n",
errno, PrintInode(NULL, handleP->fd_ih->ih_ino),
vnode);
} else if (!pad) {
fprintf(stderr, "Error reading inode %s for vnode %d\n",
PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
}
/* Pad the rest of the buffer with zeros. Remember offset we started
* padding. Keep total tally of padding.
*/
memset(p + n, 0, howMany - n);
if (!pad)
offset = (howBig - nbytes) + n;
pad += (howMany - n);
/* Now seek over the data we could not get. An error here means we
* can't do the next read.
*/
failed_seek = FDH_SEEK(handleP, ((size - nbytes) + howMany), SEEK_SET);
if (failed_seek != ((size - nbytes) + howMany)) {
if (failed_seek < 0) {
fprintf(stderr,
"Error %d seeking in inode %s for vnode %d\n",
errno, PrintInode(NULL, handleP->fd_ih->ih_ino),
vnode);
} else {
fprintf(stderr,
"Error seeking in inode %s for vnode %d\n",
PrintInode(NULL, handleP->fd_ih->ih_ino), vnode);
failed_seek = -1;
}
} else {
failed_seek = 0;
}
}
/* Now write the data out */
if (write(dumpfd, (char *)p, howMany) != howMany)
failed_write = VOLSERDUMPERROR;
}
if (pad) { /* Any padding we hadn't reported yet */
fprintf(stderr, "Null padding file: %d bytes at offset %u\n", pad,
offset);
}
free(p);
return failed_write;
}
