X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fobdclass%2Fobdcontrol;h=ceb889ed8cfc1fd1151a03cec7959f5d17330550;hp=6967bdcba8531e5fb2464278fb400fe271c28e7a;hb=af63b8a8a40beca5478a7e65bc8575d86e48410f;hpb=2ce63e7c1278fa87883b3060a7a0c4d98b5ccd15 diff --git a/lustre/obdclass/obdcontrol b/lustre/obdclass/obdcontrol index 6967bdc..ceb889e 100755 --- a/lustre/obdclass/obdcontrol +++ b/lustre/obdclass/obdcontrol @@ -1,5 +1,19 @@ #!/usr/bin/perl +# +# This code is issued under the GNU General Public License. +# See the file COPYING in this distribution +# +# Copyright (C) 1998, Stelias Computing +# +# Modified for InterMezzo from Gordian's HSM bcache device/jcm module +# Copyright (C) 1999, Carnegie Mellon University +# +# Derived from InterMezzo's incontrol, modified for OBD's +# Copyright (C) 1999, Stelias Computing +# +# + #use strict; BEGIN { require "asm/errno.ph" }; BEGIN { require "asm/ioctl.ph" }; @@ -7,14 +21,40 @@ BEGIN { require "asm/ioctl.ph" }; # p2ph generated invalid macros for ioctl stuff, so I override some of it here eval 'sub OBD_IOC_CREATE () { &_IOC(2, ord(\'f\'), 3, 4);}' unless defined(&OBD_IOC_CREATE); -eval 'sub OBD_IOC_SETUP () { &_IOC(1, ord(\'f\'), 4, 4);}' unless - defined(&OBD_IOC_SETUP); -eval 'sub OBD_IOC_SYNC () { &_IOC(2, ord(\'f\'), 5, 4);}' unless - defined(&OBD_IOC_SYNC); +eval 'sub OBD_IOC_SETUP_SUPER () { &_IOC(1, ord(\'f\'), 4, 4);}' unless + defined(&OBD_IOC_SETUP_SUPER); +eval 'sub OBD_IOC_CLEANUP_SUPER () { &_IOC(0, ord(\'f\'), 5, 0);}' unless + defined(&OBD_IOC_CLEANUP_SUPER); eval 'sub OBD_IOC_DESTROY () { &_IOC(1, ord(\'f\'), 6, 4);}' unless defined(&OBD_IOC_DESTROY); +eval 'sub OBD_IOC_PREALLOCATE () { &_IOC(3, ord(\'f\'), 7, 4);}' unless + defined(&OBD_IOC_PREALLOCATE); eval 'sub OBD_IOC_DEC_USE_COUNT () { &_IOC(0, ord(\'f\'), 8, 0);}' unless defined(&OBD_IOC_DEC_USE_COUNT); +eval 'sub OBD_IOC_SETATTR () { &_IOC(1, ord(\'f\'), 9, 4);}' unless + defined(&OBD_IOC_SETATTR); +eval 'sub OBD_IOC_GETATTR () { &_IOC(2, ord(\'f\'), 10, 4);}' unless + defined(&OBD_IOC_GETATTR); +eval 'sub OBD_IOC_READ () { &_IOC(3, ord(\'f\'), 11, 4);}' unless + defined(&OBD_IOC_READ); +eval 'sub OBD_IOC_WRITE () { &_IOC(3, ord(\'f\'), 12, 4);}' unless + defined(&OBD_IOC_WRITE); +eval 'sub OBD_IOC_CONNECT () { &_IOC(2, ord(\'f\'), 13, 4);}' unless + defined(&OBD_IOC_CONNECT); +eval 'sub OBD_IOC_DISCONNECT () { &_IOC(1, ord(\'f\'), 14, 4);}' unless + defined(&OBD_IOC_DISCONNECT); +eval 'sub OBD_IOC_STATFS () { &_IOC(3, ord(\'f\'), 15, 4);}' unless + defined(&OBD_IOC_STATFS); +eval 'sub OBD_IOC_SYNC () { &_IOC(2, ord(\'f\'), 16, 4);}' unless + defined(&OBD_IOC_SYNC); + +eval 'sub ATTR_MODE () {1;}' unless defined(&ATTR_MODE); +eval 'sub ATTR_UID () {2;}' unless defined(&ATTR_UID); +eval 'sub ATTR_GID () {4;}' unless defined(&ATTR_GID); +eval 'sub ATTR_SIZE () {8;}' unless defined(&ATTR_SIZE); +eval 'sub ATTR_ATIME () {16;}' unless defined(&ATTR_ATIME); +eval 'sub ATTR_MTIME () {32;}' unless defined(&ATTR_MTIME); +eval 'sub ATTR_CTIME () {64;}' unless defined(&ATTR_CTIME); use Getopt::Long; use File::stat; @@ -27,7 +67,9 @@ my ($device, $filesystem); # startup options (I'll replace these when I have some to replace with) GetOptions("device=s" => \$device, "fs=s" => $filesystem) || die "Getoptions"; +# genuine new simulated OBD device $device = "/dev/obd" unless $device; +# object store in the ext2 formatted block device $filesystem = "/dev/loop0" unless $filesystem; # get a console for the app @@ -44,10 +86,19 @@ my $arg; my %commands = ('create' => {func => "Create", doc => "create: creates a new inode"}, - 'setup' => {func => "Setup", doc => "setup: initializes the environment"}, + 'setup' => {func => "Setup", doc => "setup: link the ext2 partition (default /dev/loop0) to this obddev"}, + 'connect' => {func => "Connect", doc => "connect: allocates client ID for this session"}, + 'disconnect' => {func => "Disconnect", doc => "disconnect [id]: frees client resources"}, 'sync' => {func => "Sync", doc => "sync: flushes buffers to disk"}, 'destroy' => {func => "Destroy", doc => "setup: destroys an inode"}, - 'dec_use_count' => {func => "Decusecount", doc => "decreases the module use count so that it can be unmounted following an oops"}, + 'cleanup' => {func => "Cleanup", doc => "detach the superblock from this minor obd dev"}, + 'dec_use_count' => {func => "Decusecount", doc => "decreases the module use count so that the module can be removed following an oops"}, + 'read' => {func => "Read", doc => "read [offset]"}, + 'write' => {func => "Write", doc => "write "}, + 'setattr' => {func => "Setattr", doc => "setattr [mode [uid [gid [size [atime [mtime [ctime]]]]]]]"}, + 'getattr' => {func => "Getattr", doc => "getattr : displays inode object attributes"}, + 'preallocate' => {func => "Preallocate", doc => "preallocate [num]: requests preallocation of num inodes."}, + 'statfs' => {func => "Statfs", doc => "statfs: filesystem status information"}, 'help' => {func => \&Help, doc => "help: this message"}, 'quit' => {func => \&Quit, doc => "see \"exit\""}, 'exit' => {func => \&Quit, doc => "see \"quit\""} @@ -61,7 +112,7 @@ my @jcm_cmd_list = keys %commands; $attribs->{attempted_completion_function} = \&completeme; #------------------------------------------------------------------------------ # Open the device, as we need an FD for the ioctl -sysopen(DEV_OBD, $device, 0); +sysopen(DEV_OBD, $device, 0) || die "Cannot open $device"; if (!defined($::st = stat($filesystem))) { die "Unable to stat $filesystem.\n"; @@ -122,7 +173,20 @@ sub execute_line { sub Setup { my $err = 0; my $packed = pack("L", $::st->rdev()); - my $rc = ioctl(DEV_OBD, &OBD_IOC_SETUP, $packed); + my $rc = ioctl(DEV_OBD, &OBD_IOC_SETUP_SUPER, $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + print "Finished (success)\n"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + +sub Cleanup { + my $err = "0"; + my $rc = ioctl(DEV_OBD, &OBD_IOC_CLEANUP_SUPER, $err); if (!defined $rc) { print STDERR "ioctl failed: $!\n"; @@ -133,10 +197,67 @@ sub Setup { } } + +sub Connect { + my $id = 0; + my $ino = 0; + my $bs = 0; + my $bs_b = 0; + my $rc; + + # unsigned int conn_id; + # unsigned long conn_ino; + # unsigned long conn_blocksize; + # unsigned char conn_blocksize_bits; + + my $packed = pack("ILLC", $id, $ino, $bs, $bs_b); + $rc = ioctl(DEV_OBD, &OBD_IOC_CONNECT, $packed); + ($id, $ino, $bs, $bs_b) = unpack("ILLC", $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + $::client_id = $id; + print "Client ID : $id\n"; + print "Root inode : $ino\n"; + print "Blocksize : $bs\n"; + print "Blocksize bits: $bs_b\n"; + print "Finished (success)\n"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + +sub Disconnect { + my $id = shift; + + if (!defined($id)) { + $id = $::client_id; + } + + if (!defined($id)) { + print "syntax: disconnect [client ID]\n"; + print "When client ID is not given, the last valid client ID to be returned by a\n"; + print "connect command this session is used; there is no such ID.\n"; + return; + } + + my $packed = pack("L", $id); + my $rc = ioctl(DEV_OBD, &OBD_IOC_DISCONNECT, $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + $::client_id = undef; + print "Finished (success)\n"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + sub Create { my $arg = shift; my $quiet = shift; - my $err = "0"; my $rc; if (defined($quiet) && !($quiet eq "quiet")) { @@ -144,11 +265,13 @@ sub Create { return; } + my $packed = pack("I", $::client_id); if (!defined($arg) || scalar($arg) < 2) { print "Creating 1 object...\n"; - $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $err); + my $packed = pack("I", 0); + $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed); if (!defined($quiet)) { - my $ino = unpack("L", $err); + my $ino = unpack("L", $packed); print "Created object #$ino.\n"; } } else { @@ -156,11 +279,11 @@ sub Create { print "Creating " . scalar($arg) . " objects...\n"; for ($i = 0; $i < scalar($arg); $i++) { - $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $err); - if (!($rc eq "0 but true") || $err < 0) { + $rc = ioctl(DEV_OBD, &OBD_IOC_CREATE, $packed); + my $ino = unpack("L", $packed); + if (!($rc eq "0 but true") || $packed == 0) { last; } elsif (!defined($quiet)) { - my $ino = unpack("L", $err); print "Created object #$ino.\n"; } } @@ -189,6 +312,11 @@ sub Sync { } sub Destroy { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + my $arg = shift; if (!defined($arg) || scalar($arg) < 1) { @@ -197,7 +325,7 @@ sub Destroy { } print "Destroying object $arg...\n"; - my $packed = pack("L", $arg); + my $packed = pack("IL", $::client_id, $arg); my $rc = ioctl(DEV_OBD, &OBD_IOC_DESTROY, $packed); if (!defined $rc) { @@ -209,27 +337,235 @@ sub Destroy { } } +sub Getattr { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + my $inode = shift; + + if (!defined($inode) || scalar($inode) < 1) { + print "invalid arguments; type \"help getattr\" for a synopsis\n"; + return; + } + + # see Setattr + my $packed = pack("ILsx2lLLLI", $::client_id, $inode, 0, 0, 0, 0, 0, 0, 0, + 0); + my $rc = ioctl(DEV_OBD, &OBD_IOC_GETATTR, $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + my ($valid, $mode, $uid, $gid, $size, $atime, $mtime, $ctime, $flags); + ($valid, $mode, $uid, $gid, $size, $atime, $mtime, $ctime, $flags) = + unpack("ISssx2lLLLI", $packed); + + printf("Inode: %d Mode: %o\n", $inode, $mode); + printf("User: %6d Group: %6d Size: %d\n", $uid, $gid, $size); + printf("ctime: %08lx -- %s\n", $ctime, scalar(gmtime($ctime))); + printf("atime: %08lx -- %s\n", $atime, scalar(gmtime($atime))); + printf("mtime: %08lx -- %s\n", $mtime, scalar(gmtime($mtime))); + printf("flags: %08x\n", $flags); + print "Finished (success)\n"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + +sub Setattr { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + my $inode = shift; + my $valid = 0; + my $mode = oct(shift); + my $uid = shift; + my $gid = shift; + my $size = shift; + my $atime = shift; + my $mtime = shift; + my $ctime = shift; + + if (defined($uid)) { + $valid |= &ATTR_UID; + } + if (defined($gid)) { + $valid |= &ATTR_GID; + } + if (defined($size)) { + $valid |= &ATTR_SIZE; + } + if (defined($atime)) { + $valid |= &ATTR_ATIME; + } + if (defined($mtime)) { + $valid |= &ATTR_MTIME; + } + if (defined($ctime)) { + $valid |= &ATTR_CTIME; + } + if (defined($mode)) { + $valid |= &ATTR_MODE; + } + + if (!defined($inode) || scalar($inode) < 1) { + print "invalid arguments; type \"help setattr\" for a synopsis\n"; + return; + } + + #struct iattr { + # unsigned int ia_valid; (32) + # umode_t ia_mode; (16) + # uid_t ia_uid; (16) + # gid_t ia_gid; (16) + # -- 16 bit alignment here! -- + # off_t ia_size; (32) + # time_t ia_atime; (32) + # time_t ia_mtime; (32) + # time_t ia_ctime; (32) + # unsigned int ia_attr_flags; (32) + #}; + + printf "valid is %x, mode is %o\n", $valid, $mode; + my $packed = pack("ILLSssx2ILLLL", $::client_id, $inode, $valid, $mode, + $uid, $gid, $size, $atime, $mtime, $ctime, 0); + my $rc = ioctl(DEV_OBD, &OBD_IOC_SETATTR, $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + print "Finished (success)\n"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + +sub Read { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + my $inode = shift; + my $count = shift; + my $offset = shift; + + if (!defined($inode) || scalar($inode) < 1 || !defined($count) || + $count < 1 || (defined($offset) && $offset < 0)) { + print "invalid arguments; type \"help read\" for a synopsis\n"; + return; + } + + if (!defined($offset)) { + $offset = 0; + } + + print("Reading $count bytes starting at byte $offset from object " . + "$inode...\n"); + + # "allocate" a large enough buffer + my $buf = sprintf("%${count}s", " "); + die "suck" if (length($buf) != $count); + + # the perl we're using doesn't support pack type Q, and offset is 64 bits + my $packed = pack("ILpLLL", $::client_id, $inode, $buf, $count, $offset, 0); + + my $rc = ioctl(DEV_OBD, &OBD_IOC_READ, $packed); + + $retval = unpack("l", $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + if ($retval >= 0) { + print substr($buf, 0, $retval); + print "\nRead $retval of an attempted $count bytes.\n"; + print "Finished (success)\n"; + } else { + print "Finished (error $retval)\n"; + } + } else { + print "ioctl returned error code $rc.\n"; + } +} + +sub Write { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + my $inode = shift; + my $offset = shift; + my $text = join(' ', @_); + my $count = length($text); + + if (!defined($inode) || scalar($inode) < 1 || !defined($offset) || + scalar($offset) < 0) { + print "invalid arguments; type \"help write\" for a synopsis\n"; + return; + } + + if (!defined($text)) { + $text = ""; + $count = 0; + } + + print("Writing $count bytes starting at byte $offset to object " . + "$inode...\n"); + + # the perl we're using doesn't support pack type Q + my $packed = pack("ILpLLL", $::client_id, $inode, $text, $count, $offset, 0); + my $rc = ioctl(DEV_OBD, &OBD_IOC_WRITE, $packed); + + $retval = unpack("l", $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + if ($retval >= 0) { + print "\nWrote $retval of an attempted $count bytes.\n"; + print "Finished (success)\n"; + } else { + print "Finished (error $retval)\n"; + } + } else { + print "ioctl returned error code $rc.\n"; + } +} + sub Preallocate { my $arg = shift; + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + if (!defined($arg) || scalar($arg) < 1 || scalar($arg) > 32) { $arg = 32; } print "Preallocating $arg inodes...\n"; - my $packed = pack("Lx128", $arg); # alloc, inodes[32] + my $packed = pack("LLx128", $::client_id, $arg); + # client id, alloc, inodes[32] + my $rc = ioctl(DEV_OBD, &OBD_IOC_PREALLOCATE, $packed); if (!defined $rc) { print STDERR "ioctl failed: $!\n"; } elsif ($rc eq "0 but true") { - my $alloc = unpack("L", $packed); - my @inodes = unpack("L32", $packed); + my $alloc = unpack("x4L", $packed); + my @inodes = unpack("x8L32", $packed); my $i; print "Got $alloc inodes: "; - for ($i = 1; $i <= $alloc; ++$i) { - print $inodes[$i] . " "; + foreach $i (@inodes) { + print $i . " "; } print "\nFinished (success)\n"; } else { @@ -238,7 +574,7 @@ sub Preallocate { } sub Decusecount { - my $rc = ioctl(DEV_OBD, &OBD_IOC_DEC_USE_COUNT, NULL); + my $rc = ioctl(DEV_OBD, &OBD_IOC_DEC_USE_COUNT, 0); if (!defined $rc) { print STDERR "ioctl failed: $!\n"; @@ -249,6 +585,45 @@ sub Decusecount { } } +sub Statfs { + if (!defined($::client_id)) { + print "You must first ``connect''.\n"; + return; + } + + # struct statfs { + # long f_type; + # long f_bsize; + # long f_blocks; + # long f_bfree; + # long f_bavail; + # long f_files; + # long f_ffree; + # __kernel_fsid_t f_fsid; (64 bits) + # long f_namelen; + # long f_spare[6]; + # }; + + my $packed = pack("LLLLLLLIILL6", $::client_id, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0); + + my $rc = ioctl(DEV_OBD, &OBD_IOC_STATFS, $packed); + + if (!defined $rc) { + print STDERR "ioctl failed: $!\n"; + } elsif ($rc eq "0 but true") { + # skip both the conn_id and the fs_type in the buffer + my ($bsize, $blocks, $bfree, $bavail, $files, $ffree) = + unpack("x4x4LLLLLL", $packed); + print("$bsize byte blocks: $blocks, " . ($blocks - $bfree) . " used, " . + "$bfree free ($bavail available).\n"); + print "$files files, " . ($files - $ffree) . " used, $ffree free.\n"; + print "Finished (success)\n"; + } else { + print "ioctl returned error code $rc.\n"; + } +} + sub Help { my $arg = shift; @@ -260,5 +635,9 @@ sub Help { } sub Quit { + if ($::client_id) { + print "Disconnecting active session ($::client_id)..."; + Disconnect($::client_id); + } exit; }