| 1 |
#!/usr/local/bin/perl -w |
| 2 |
# jdh, 5/29/2003 - pretend to be Oracle DB server to tnslsnr |
| 3 |
# (mostly stolen from James W. Abendschan jwa@jammed.com) |
| 4 |
# |
| 5 |
# Added packet type recognition and response logic, client-"database" connect |
| 6 |
# conversation, and sql query hand-off to obj_srvr running on DB server. |
| 7 |
# jdh, 6/10/2003 |
| 8 |
# |
| 9 |
# Modified to do "database" connect conversation with real DB to validate |
| 10 |
# password, instead of spoofing. jdh, 7/8/2004) |
| 11 |
|
| 12 |
# need below so it can find HTML/HeadParser.pm |
| 13 |
BEGIN {push @INC, '/usr/local/lib/perl5/site_perl/5.6.0/sun4-solaris/'; } |
| 14 |
|
| 15 |
use strict; |
| 16 |
use Socket; |
| 17 |
use Carp; |
| 18 |
use FileHandle; |
| 19 |
|
| 20 |
use LWP::UserAgent; |
| 21 |
|
| 22 |
my $REP_LOOKUP_FILE = "/full_path/tns_replies.txt"; |
| 23 |
my $CMD_LOOKUP_FILE = "/full_path/tns_cmds.txt"; |
| 24 |
my $PKT_HDR_SIZE = 10; |
| 25 |
my $MAX_LINESIZE = 2048; |
| 26 |
my $MAX_PACKETSIZE = 2048; |
| 27 |
select(STDOUT); $| = 1; |
| 28 |
|
| 29 |
my $HOSTADDR = 'wilbur.wou.edu'; |
| 30 |
my $DB_OBJ_SRVR_LSNR_URL = 'https://banweb.ous.edu/wouprd/owa/wou_obj_srvr_lsnr.p_connect'; |
| 31 |
my $DB_OBJ_SRVR_LSNR_SERVER = 'banweb.ous.edu'; |
| 32 |
my $DB_OBJ_SRVR_LSNR_PROC = '/wouprd/owa/wou_obj_srvr_lsnr.p_connect'; |
| 33 |
|
| 34 |
my $DB_OBJ_SRVR_LSNR_PASSWD = `cat secret_passwd_file`; # not the real name! |
| 35 |
chomp $DB_OBJ_SRVR_LSNR_PASSWD; |
| 36 |
my $REAL_DB_HOST = 'spruce.ous.edu'; |
| 37 |
my $REAL_DB_PORT = 1541; |
| 38 |
|
| 39 |
# bytes 11 and 12 identifiy the command: 03 09 is DISCONNECT |
| 40 |
my $LOGOUT_BYTES = '00 0D 00 00 06 00 00 00 00 00 03 09 24'; |
| 41 |
|
| 42 |
my $GOOD_LOGIN_ACK = '00 38 00 00 06 00 00 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 00 00 00'; |
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|
| 44 |
my $GOOD_LOGIN_ACK70 = '00 4a 00 00 06 00 00 00 00 00 04 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00'; |
| 45 |
|
| 46 |
my $OBJ_SRVR_USER_QRY = "select chk_obj_srvr_user(user) from dual"; |
| 47 |
|
| 48 |
# Actually this must represent the version of Net8 on the client, because some |
| 49 |
# BI Query V. 7.0 return the '70' acks and some don't. |
| 50 |
my $BI_QUERY_VERSION = '60'; # will reset if indicated by ACK |
| 51 |
|
| 52 |
my $DEBUG = 1; |
| 53 |
|
| 54 |
my ($reply, $acc_port, $checksum, $remote, $sock, $iaddr, $paddr, $line, |
| 55 |
$cmdlen, $cmdlenH, $cmdlenL, $packetlen, $packetlenH, $packetlenL, |
| 56 |
$command, $cmd_str, $cmd, @bytes, $bytes, $i, $name, @n, $n, $count, |
| 57 |
$db_port, %tns_cmds, %tns_replies, $fld1, $fld2, $CURR_CMD, $CONTEXT, |
| 58 |
$QUERY, @QUERY_RESULT, $NUM_COLS, $ROW_CNT, $RECORD_CNT, $SEQ, $envkey, |
| 59 |
@fh_out, @fh_in, $fd_out, $fd_in, $size, @beq_bytes, $redir_length, |
| 60 |
$redir_msg, $req, $BAD_LOGIN, $TNS_TYPE, $ua, $request, $response, |
| 61 |
$http_sock); |
| 62 |
|
| 63 |
sub logmsg { return unless $DEBUG; |
| 64 |
my $fh_out = shift; |
| 65 |
print $fh_out "$0 $$: @_ at ", scalar localtime, "\n" } |
| 66 |
|
| 67 |
# read in tns command and reply lookup files |
| 68 |
read_config_files(); |
| 69 |
|
| 70 |
|
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# thanks to Ian Redfern (ian.Redfern@logicaCMG.com) for NET8 Documentation |
| 72 |
# jhjh - finish updating below to reflect this documentation |
| 73 |
my %ora_pckt_types = |
| 74 |
# byte 11 byte 12 |
| 75 |
( 0x01 => { 0x05 => "CLIENT_TYPE", |
| 76 |
0x06 => "HANDSHAKE2", |
| 77 |
0x2C => "IDENT" }, |
| 78 |
|
| 79 |
0x02 => { 0x00 => "RESET", |
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0x01 => "CHAR_MAP" }, |
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|
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0x03 => { 0x02 => "SQL_OPEN", |
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0x03 => "QUERY", |
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0x04 => "QUERY_SECOND", |
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0x05 => "FETCH_MORE", |
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0x08 => "HANDSHAKE7", |
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0x09 => "DISCONNECT", |
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0x0E => "HANDSHAKE7", # on purpose |
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0x27 => "SET_LANG", |
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0x2B => "DESC_COLS", |
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0x3B => "HANDSHAKE5", |
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0x47 => "FETCH", |
| 93 |
0x51 => "USER_PASSWD", |
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0x52 => "CLIENT_ID", |
| 95 |
0x54 => "HANDSHAKE4", |
| 96 |
0x5E => "SQL", |
| 97 |
0x73 => "AUTH2", |
| 98 |
0x76 => "AUTH1" }, |
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|
| 100 |
0x04 => { 0x00 => "ACK", |
| 101 |
0x01 => "ACK70" }, |
| 102 |
|
| 103 |
0xDE => { 0xAD => "HANDSHAKE1" } ); |
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|
| 105 |
|
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# ============================================================================ |
| 107 |
# Program |
| 108 |
# ============================================================================ |
| 109 |
# ============================= |
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# Get Port for DB Connections |
| 111 |
# ============================= |
| 112 |
my $LSNR_PORT = 1521; # WOU listener, need to register w/ listener if |
| 113 |
# pre-spawn mode |
| 114 |
my $DB_BASE_PORT = 33500; # jhjh |
| 115 |
my $DB_MAX_PORT = 33600; |
| 116 |
my $proto = getprotobyname('tcp'); |
| 117 |
|
| 118 |
socket(Server, PF_INET, SOCK_STREAM, $proto) || die "socket: $!"; |
| 119 |
setsockopt(Server, SOL_SOCKET, SO_REUSEADDR, pack("l", 1)) |
| 120 |
|| die "setsockopt: $!"; |
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|
| 122 |
$db_port = $DB_BASE_PORT; |
| 123 |
until ( bind(Server, sockaddr_in($db_port, INADDR_ANY) ) || |
| 124 |
$db_port++ > $DB_MAX_PORT ) { } |
| 125 |
|
| 126 |
# open logfile |
| 127 |
my $LOGFILE = "/tmp/oracle_$db_port.log"; |
| 128 |
if ($DEBUG) { |
| 129 |
open(LOG, ">$LOGFILE") or die "$!: can't open $LOGFILE for output"; |
| 130 |
select(LOG); $| = 1; select(STDOUT); |
| 131 |
|
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`chmod 644 $LOGFILE`; |
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} |
| 134 |
|
| 135 |
listen(Server,SOMAXCONN) || die "listen: $!"; |
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|
| 137 |
logmsg \*LOG, "DB server started on port $db_port"; |
| 138 |
|
| 139 |
my $LOGIN = 0; |
| 140 |
|
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# ==================================== |
| 142 |
# Handshake with Listener (BEQ mode) |
| 143 |
# ==================================== |
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# get reader pipe, writer pipe already opened by parent process (tnslsnr) |
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# (thanks, merlyn!) |
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@fh_in = grep { defined($_) } map FileHandle->new_from_fd($_, "r"), 0..100; |
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@fh_out = grep { defined($_) } map FileHandle->new_from_fd($_, "w"), 0..100; |
| 148 |
# assume listener won't |
| 149 |
# more than 100 fd's open; |
| 150 |
# this won't be true if |
| 151 |
# we get very many users |
| 152 |
# even on a dedicated lsnr |
| 153 |
|
| 154 |
$size = @fh_in; |
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$fd_in = fileno( $fh_in[ $size - 2 ] ); # 2nd highest fd_in is reader pipe |
| 156 |
# (at least on this lsnr/platform) |
| 157 |
|
| 158 |
$size = @fh_out; |
| 159 |
$fd_out = fileno( $fh_out[ $size - 1 ] ); # highest fd_out is writer pipe |
| 160 |
|
| 161 |
logmsg \*LOG, "fd_in = $fd_in, fd_out = $fd_out"; |
| 162 |
|
| 163 |
open(IN, "<&=$fd_in"); |
| 164 |
open(OUT, ">&=$fd_out"); |
| 165 |
|
| 166 |
logmsg \*LOG, "after opening fd_in, fd_out"; |
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|
| 168 |
select OUT; $| = 1; |
| 169 |
|
| 170 |
print OUT "NTP0 $$\n"; |
| 171 |
|
| 172 |
select STDOUT; |
| 173 |
|
| 174 |
# pull in 3 messages from tnslsnr; only takes 2 reads |
| 175 |
sysread(\*IN, $bytes, $MAX_LINESIZE); |
| 176 |
logmsg \*LOG, "reply from tnslsnr: ", strings($bytes); |
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|
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# sometimes it pulls in all 3 messages in first read |
| 179 |
if ( strings($bytes) !~ /ADDRESS/ ) { |
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sysread(\*IN, $bytes, $MAX_LINESIZE); |
| 181 |
logmsg \*LOG, "reply from tnslsnr: ", strings($bytes); |
| 182 |
} |
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|
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$cmd_str = "(ADDRESS=(PROTOCOL=tcp)(HOST=$HOSTADDR)(PORT=$db_port))"; |
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|
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# Below is my deduction, have tested through the "10's" column, and |
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# contined into the 100's and 1000's but didn't provide a long enough |
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# following message to totally confirm. Behaviour was consistent w/ |
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# this idea through all 4 columns (jhjh). |
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# |
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# Since each byte can represent 255 symbols, the following length (for |
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# the message AFTER this message) is represented in the 4 bytes as given |
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# below (bigEndian format?): |
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# base 256 1's 10's 100's 1000's |
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# base 10 0-255 256 - 65535, etc. |
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# !!(above is true for linux) |
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# !!print OUT chr(length($cmd_str) ), chr(0), chr(0), chr(0); |
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|
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# for Solaris, it is littleEndian |
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print OUT chr(0), chr(0), chr(0), chr(length($cmd_str) ); |
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|
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print OUT $cmd_str; |
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|
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|
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# ============================================================================ |
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# accept connection from obj_srvr (may be remote) |
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# ============================================================================ |
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socket(Obj_Srvr_Server, PF_INET, SOCK_STREAM, $proto) || die "socket: $!"; |
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setsockopt(Obj_Srvr_Server, SOL_SOCKET, SO_REUSEADDR, |
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pack("l", 1)) || die "setsockopt: $!"; |
| 211 |
|
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until ( bind(Obj_Srvr_Server, sockaddr_in($db_port, INADDR_ANY) ) || |
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$db_port++ > $DB_MAX_PORT ) { } |
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|
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($db_port > $DB_MAX_PORT) && die "bind: $!"; |
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|
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logmsg \*LOG, "sending POST to $DB_OBJ_SRVR_LSNR_URL, host = $HOSTADDR, port = $db_port\n"; |
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|
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# this will start (possibly) remote obj_srvr and then it will connect to us on $db_port |
| 220 |
$ua = LWP::UserAgent->new; |
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|
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# password-protected public OAS procedure that sends dbms_pipe message to |
| 223 |
# (possibly) remote OS listener (for SCT Banner this is GURJOBS, the job |
| 224 |
# submission listener), which starts dedicated obj_srvr |
| 225 |
$ua->post( $DB_OBJ_SRVR_LSNR_URL, { pp_uid => "obj_srvr", |
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pp_passwd => $DB_OBJ_SRVR_LSNR_PASSWD, |
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pp_host => $HOSTADDR, |
| 228 |
pp_port => $db_port } ); |
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|
| 230 |
# jhjh - use this option if $ua->post is broken on your server |
| 231 |
# jhjh $request = HTTP::Request->new(POST => $DB_OBJ_SRVR_LSNR_URL); |
| 232 |
|
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# jhjh $request->content("pp_uid=obj_srvr&pp_passwd=$DB_OBJ_SRVR_LSNR_PASSWD&pp_host=$HOSTADDR&pp_port=$db_port"); |
| 234 |
|
| 235 |
# jhjh $response = $ua->request($request); |
| 236 |
|
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# if that is also broken, below will work but passes the lsnr password over |
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# unencrypted socket in plain text. |
| 239 |
|
| 240 |
#!! not secure: need to use https |
| 241 |
# jhjh $http_sock = socket_connect($DB_OBJ_SRVR_LSNR_SERVER, 80); |
| 242 |
# jhjh select($http_sock); $| = 1; select(STDOUT); |
| 243 |
# jhjh print $http_sock "POST $DB_OBJ_SRVR_LSNR_PROC?pp_uid=obj_srvr&pp_passwd=$DB_OBJ_SRVR_LSNR_PASSWD&pp_host=$HOSTADDR&pp_port=$db_port\n"; |
| 244 |
# jhjh logmsg \*LOG, sysread($http_sock, $bytes, $MAX_LINESIZE); # don't care about this |
| 245 |
# jhjh close($http_sock); |
| 246 |
|
| 247 |
# to make sure that obj_srvr doesn't try to connect before we're listening, |
| 248 |
# the obj_srvr will try to connect 10 times w/ 2 second pauses in between. |
| 249 |
|
| 250 |
logmsg \*LOG, "sent POST\n"; |
| 251 |
listen(Obj_Srvr_Server,SOMAXCONN) || die "listen: $!"; |
| 252 |
|
| 253 |
$paddr = accept(Obj_Srvr, Obj_Srvr_Server); |
| 254 |
($acc_port,$iaddr) = sockaddr_in($paddr); |
| 255 |
$name = gethostbyaddr($iaddr,AF_INET); |
| 256 |
|
| 257 |
logmsg \*LOG, "connection from $name [", inet_ntoa($iaddr), "] at port $acc_port"; |
| 258 |
|
| 259 |
select(Obj_Srvr); $| = 1; select(STDOUT); |
| 260 |
|
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# =========================================== |
| 262 |
# Listen for Client Connection to "Database" |
| 263 |
# =========================================== |
| 264 |
db_accept(\*Server); |
| 265 |
logmsg \*LOG, "end of oracle\n"; |
| 266 |
close(LOG); |
| 267 |
|
| 268 |
|
| 269 |
# =========================================================================== |
| 270 |
# Subroutines |
| 271 |
# =========================================================================== |
| 272 |
sub db_accept { |
| 273 |
|
| 274 |
my $server_socket = shift; |
| 275 |
|
| 276 |
my ($bytes, $valid_login, $redir_host, $redir_port, $handshake_done, |
| 277 |
$req_type, $state); |
| 278 |
|
| 279 |
logmsg \*LOG, "calling db_accept()"; |
| 280 |
|
| 281 |
$paddr = accept(Client, $server_socket); |
| 282 |
($acc_port,$iaddr) = sockaddr_in($paddr); |
| 283 |
$name = gethostbyaddr($iaddr,AF_INET); |
| 284 |
|
| 285 |
logmsg \*LOG, "connection from $name [", inet_ntoa($iaddr), "] at port $acc_port"; |
| 286 |
|
| 287 |
$CONTEXT = "HANDSHAKE"; |
| 288 |
$SEQ = 0; |
| 289 |
|
| 290 |
|
| 291 |
# jhjh - make connection to real production db here (at the sqlnet |
| 292 |
# packet level), then pass along the client packets to this |
| 293 |
# db, to let it do the password validation. If it logs the |
| 294 |
# user in, they are validated. We log them out from that DB |
| 295 |
# and continue. Otherwise we disconnect them. We will |
| 296 |
# pass back the DB's replies to the client to keep the |
| 297 |
# conversation going, all the way through login. This means |
| 298 |
# we don't need to spoof nearly as much (like we were doing |
| 299 |
# with %ora_pckt_types). We let the DB do that for us, to |
| 300 |
# satisfy the client that it is connected to a real DB. We |
| 301 |
# accomplish this and the password validation in one step. |
| 302 |
# all we have to do then is the more-or-less ascii text |
| 303 |
# sql communication. Whoa! |
| 304 |
|
| 305 |
|
| 306 |
# jhjh - at this point we start talking to the real DB, and pass through |
| 307 |
# all listener and client traffic. The listener handshakes with |
| 308 |
# the real DB (while we read and pass along the traffic), the |
| 309 |
# client does the same, then when the client successfully logs in |
| 310 |
# we close the real DB connection and take over. Obj_srvr will |
| 311 |
# make a new DB connection as user obj_srvr. Will need to build |
| 312 |
# in some object security to obj_srvr, so that different users can |
| 313 |
# have different access. For our purposes, it may be enough to |
| 314 |
# control this through the client data model. There is a valid |
| 315 |
# obj_srvr user list in addition to the wouprd password, only |
| 316 |
# those in the list can log in. |
| 317 |
|
| 318 |
# NOTE: we want the client and Real DB to talk to each other, but not |
| 319 |
# directly. I.e. when the real DB sends us the redirect port, |
| 320 |
# we change our real DB socket to that port, but the client still |
| 321 |
# keeps talking on $db_port. So we don't pass this redirect |
| 322 |
# message on to the client. |
| 323 |
|
| 324 |
|
| 325 |
logmsg \*LOG, "connecting to real DB...\n"; # jhjh |
| 326 |
$sock = socket_connect($REAL_DB_HOST, $REAL_DB_PORT); |
| 327 |
$bytes = prepare_command( lookup_command($CMD_LOOKUP_FILE, |
| 328 |
"ESTABLISH_REAL_DB") ); |
| 329 |
|
| 330 |
select($sock); $| = 1; select(Client); $| = 1; select(STDOUT); |
| 331 |
|
| 332 |
send_command($sock, $bytes); |
| 333 |
|
| 334 |
$valid_login = 0; $BAD_LOGIN = 0; $handshake_done = 0; $state = ""; |
| 335 |
|
| 336 |
# handle REDIRECT from Real DB |
| 337 |
if ( sysread($sock, $bytes, $MAX_LINESIZE) ) { |
| 338 |
logmsg \*LOG, "DB: $bytes\n"; |
| 339 |
get_request_type($bytes); # use to populate $TNS_TYPE |
| 340 |
|
| 341 |
if ( $TNS_TYPE == 0x5 and |
| 342 |
strings($bytes) =~ /\(HOST=(.+)\)\(PORT=(\d+)\)/ and |
| 343 |
$redir_host = $1 and $redir_port = $2 ) { |
| 344 |
|
| 345 |
logmsg \*LOG, "reconnecting to DB at $redir_host on $redir_port\n"; |
| 346 |
|
| 347 |
close($sock); |
| 348 |
$sock = socket_connect($redir_host, $redir_port); |
| 349 |
select($sock); $| = 1; select(STDOUT); |
| 350 |
|
| 351 |
# again, send connection request for real DB, not obj_srvr |
| 352 |
$bytes = prepare_command( lookup_command($CMD_LOOKUP_FILE, |
| 353 |
"ESTABLISH_REAL_DB") ); |
| 354 |
send_command($sock, $bytes); |
| 355 |
|
| 356 |
logmsg \*LOG, "Did REAL_DB REDIRECT\n"; |
| 357 |
|
| 358 |
# throw away Client's Redirect connect msg to $db_port, |
| 359 |
# let it get the ACK from REAL_DB |
| 360 |
if ( sysread(\*Client, $bytes, $MAX_LINESIZE) ) { |
| 361 |
logmsg \*LOG, "Client: $bytes\n"; |
| 362 |
} |
| 363 |
} |
| 364 |
else { |
| 365 |
die "Big problems"; |
| 366 |
} |
| 367 |
} |
| 368 |
else { |
| 369 |
die "Big problems"; |
| 370 |
} |
| 371 |
|
| 372 |
|
| 373 |
REAL_DB_LOOP: |
| 374 |
while ( sysread($sock, $bytes, $MAX_LINESIZE) ) { |
| 375 |
|
| 376 |
$req_type = get_request_type($bytes); # track state |
| 377 |
logmsg \*LOG, "\$req_type is $req_type\n"; |
| 378 |
logmsg \*LOG, "DB: $bytes\n"; |
| 379 |
print Client $bytes; |
| 380 |
|
| 381 |
if ($req_type eq "RESET") { |
| 382 |
# Do another read from real DB - this is the real message; |
| 383 |
# the message from "while ( sysread(... " was just the ACK |
| 384 |
# to the BREAK. |
| 385 |
if ( sysread($sock, $bytes, $MAX_LINESIZE) ) { |
| 386 |
logmsg \*LOG, "DB: $bytes\n"; |
| 387 |
print Client $bytes; |
| 388 |
} |
| 389 |
} |
| 390 |
|
| 391 |
if ($BAD_LOGIN) { |
| 392 |
close($sock); |
| 393 |
last REAL_DB_LOOP; |
| 394 |
} |
| 395 |
|
| 396 |
if ( logged_in($state, $bytes) ) { |
| 397 |
$valid_login = 1; |
| 398 |
$state = ""; |
| 399 |
} |
| 400 |
|
| 401 |
if ( $handshake_done ) { |
| 402 |
logmsg \*LOG, "checking if valid obj_srvr user\n"; |
| 403 |
|
| 404 |
# must be in the list of obj_srvr users, not just have a DB login |
| 405 |
if ( !obj_srvr_user($sock) ) { |
| 406 |
$valid_login = 0; |
| 407 |
send_command(\*Client, lookup_command($REP_LOOKUP_FILE, |
| 408 |
"INVALID_USER_PASS") ); |
| 409 |
} |
| 410 |
|
| 411 |
logmsg \*LOG, "disconnecting from Real DB\n"; |
| 412 |
send_command($sock, $LOGOUT_BYTES); |
| 413 |
last REAL_DB_LOOP; |
| 414 |
} |
| 415 |
|
| 416 |
if ( sysread(\*Client, $bytes, $MAX_LINESIZE) ) { |
| 417 |
if ( handshake_done($bytes) ) { $handshake_done = 1 } |
| 418 |
|
| 419 |
$req_type = get_request_type($bytes); # track state |
| 420 |
|
| 421 |
if ($req_type eq "USER_PASSWD" ) { |
| 422 |
$state = $req_type; |
| 423 |
} |
| 424 |
print $sock $bytes; |
| 425 |
logmsg \*LOG, "Client: $bytes\n"; |
| 426 |
} |
| 427 |
} |
| 428 |
logmsg \*LOG, "outside REAL_DB_LOOP\n"; |
| 429 |
if (sysread($sock, $bytes, $MAX_LINESIZE) ) { |
| 430 |
logmsg \*LOG, "Last DB Read: $bytes\n"; |
| 431 |
} |
| 432 |
close($sock); |
| 433 |
|
| 434 |
# send client an INVALID_USER_PASS if we're returning |
| 435 |
if (!$valid_login) { |
| 436 |
send_command(\*Client, lookup_command($REP_LOOKUP_FILE, |
| 437 |
"INVALID_USER_PASS") ); |
| 438 |
close(Client); |
| 439 |
return; |
| 440 |
} |
| 441 |
|
| 442 |
# fall-through (we have a valid user/password) |
| 443 |
|
| 444 |
# Now we're speaking SQL (after a couple of handshake messages; |
| 445 |
# send_reply() will handle these.) |
| 446 |
while ( sysread(\*Client, $bytes, $MAX_LINESIZE) ) { |
| 447 |
logmsg \*LOG, "$bytes\n"; |
| 448 |
send_reply(\*Client, $bytes); |
| 449 |
} |
| 450 |
} |
| 451 |
|
| 452 |
sub hexify { |
| 453 |
my $input = shift; |
| 454 |
my ($output, $i); |
| 455 |
for ($i=0; $i<length($input); $i++) { |
| 456 |
$output .= sprintf "%.2x ", ord(substr($input, $i, 1)); |
| 457 |
} |
| 458 |
return $output; |
| 459 |
} |
| 460 |
|
| 461 |
sub hexdump { |
| 462 |
my $input = shift; |
| 463 |
my ($byte, $count, $output); |
| 464 |
|
| 465 |
($byte) = unpack("C", $input); |
| 466 |
$count++; |
| 467 |
$output .= sprintf "%.2x ", $byte; |
| 468 |
|
| 469 |
while ( ($byte) = unpack("x$count C", $input) ) { |
| 470 |
$count++; |
| 471 |
$output .= sprintf "%.2x ", $byte; |
| 472 |
} |
| 473 |
|
| 474 |
$output =~ s/\s$//; |
| 475 |
|
| 476 |
return $output; |
| 477 |
} |
| 478 |
|
| 479 |
sub lookup_command { # jdh |
| 480 |
my ($cmd_file, $cmd_keyword) = @_; |
| 481 |
|
| 482 |
|
| 483 |
if ( $BI_QUERY_VERSION eq '70' and |
| 484 |
$cmd_file =~ /replies/i and |
| 485 |
exists($tns_replies{ $cmd_keyword . '70' } ) ) { |
| 486 |
$cmd_keyword .= '70'; |
| 487 |
} |
| 488 |
|
| 489 |
logmsg \*LOG, "\nCOMMAND: $cmd_keyword\n"; # jhjh |
| 490 |
|
| 491 |
if ($cmd_file =~ /cmds/i ) { return $tns_cmds{$cmd_keyword} } |
| 492 |
if ($cmd_file =~ /replies/i ) { return $tns_replies{$cmd_keyword} } |
| 493 |
|
| 494 |
} |
| 495 |
|
| 496 |
|
| 497 |
sub socket_connect { |
| 498 |
my ($remote, $port) = @_; |
| 499 |
if ($port =~ /\D/) { $port = getservbyname($port, 'tcp') } |
| 500 |
die "No port" unless $port; |
| 501 |
$iaddr = inet_aton($remote) || die "no host: $remote"; |
| 502 |
$paddr = sockaddr_in($port, $iaddr); |
| 503 |
$proto = getprotobyname('tcp'); |
| 504 |
socket(SOCK, PF_INET, SOCK_STREAM, $proto) || die "socket: $!"; |
| 505 |
connect(SOCK, $paddr) || die "connect: $!"; |
| 506 |
select(SOCK); $| = 1; select(STDOUT); |
| 507 |
logmsg \*LOG, "Connected\n"; |
| 508 |
|
| 509 |
return \*SOCK; |
| 510 |
} |
| 511 |
|
| 512 |
sub prepare_command { |
| 513 |
my $cmd_str = shift; |
| 514 |
|
| 515 |
my ($mode); |
| 516 |
|
| 517 |
$mode = shift or ($mode = "TCP"); # TCP is default, BEQ is for talking |
| 518 |
# to lsnr when lsnr running in bequeath |
| 519 |
# mode |
| 520 |
|
| 521 |
my $hdr_size = $mode eq "TCP" ? 58 : |
| 522 |
($mode eq "BEQ" ? 4 : 0); # TCP header is 58 bytes, |
| 523 |
# BEQ header is 4 bytes |
| 524 |
|
| 525 |
$cmd_str =~ s/\$COLON/:/; |
| 526 |
$cmd_str =~ s/\$pid/$$/; |
| 527 |
$cmd_str =~ s/\$port/$db_port/; |
| 528 |
|
| 529 |
# calculate command length |
| 530 |
$cmdlen = length($cmd_str); |
| 531 |
$cmdlenH = $cmdlen >> 8; |
| 532 |
$cmdlenL = $cmdlen & 0xff; |
| 533 |
$cmdlenH = sprintf "%.2x", $cmdlenH; |
| 534 |
$cmdlenL = sprintf "%.2x", $cmdlenL; |
| 535 |
|
| 536 |
# calculate packet length |
| 537 |
$packetlen = length($cmd_str) + $hdr_size; |
| 538 |
$packetlenH = $packetlen >> 8; |
| 539 |
$packetlenL = $packetlen & 0xff; |
| 540 |
$packetlenH = sprintf "%.2x", $packetlenH; |
| 541 |
$packetlenL = sprintf "%.2x", $packetlenL; |
| 542 |
$cmd = hexify($cmd_str); |
| 543 |
|
| 544 |
# first 20 bytes is for tcp/ip I guess, next 38 bytes for tnslsnr and |
| 545 |
# it's attached server programs. |
| 546 |
# decimal offset |
| 547 |
# 0: packetlen_high packetlen_low |
| 548 |
# 25: cmdlen_high cmdlen_low |
| 549 |
# 59: command |
| 550 |
# the packet: |
| 551 |
if ($mode eq "TCP") { |
| 552 |
$bytes="\ |
| 553 |
$packetlenH $packetlenL 00 00 01 00 00 00 01 36 01 2c 00 00 08 00 \ |
| 554 |
7f ff 7f 08 00 00 00 01 $cmdlenH $cmdlenL 00 3a 00 00 00 00 \ |
| 555 |
00 00 00 00 00 00 00 00 00 00 00 00 34 e6 00 00 \ |
| 556 |
00 01 00 00 00 00 00 00 00 00 $cmd"; |
| 557 |
} |
| 558 |
elsif ($mode eq "BEQ") { |
| 559 |
$bytes="\ |
| 560 |
$cmdlenH $cmdlenL 00 00 $cmd"; |
| 561 |
|
| 562 |
} |
| 563 |
else { die "prepare_command: UNKNOWN MODE\n" } |
| 564 |
|
| 565 |
return $bytes; |
| 566 |
} |
| 567 |
|
| 568 |
sub send_command { |
| 569 |
my ($sock, $bytes) = @_; |
| 570 |
my ($msg, $seqH, $seqL, $seq); |
| 571 |
|
| 572 |
$seqH = $SEQ >> 8; |
| 573 |
$seqL = $SEQ & 0xff; |
| 574 |
$seqH = sprintf "%.2x", $seqH; |
| 575 |
$seqL = sprintf "%.2x", $seqL; |
| 576 |
$seq = "$seqH $seqL"; |
| 577 |
|
| 578 |
$bytes =~ s/\$seq/$seq/g; # jhjh - 5/24/2004 |
| 579 |
|
| 580 |
@n = split(" ", $bytes); |
| 581 |
$packetlen = @n; |
| 582 |
$count = 0; |
| 583 |
|
| 584 |
logmsg \*LOG, "\nwriting $packetlen bytes\n"; |
| 585 |
|
| 586 |
while (@n) { |
| 587 |
$count++; |
| 588 |
$n = shift @n; |
| 589 |
if (length($n) == 2) { |
| 590 |
chomp $n; |
| 591 |
print $sock chr(hex($n)); |
| 592 |
$msg .= chr(hex($n)); |
| 593 |
} |
| 594 |
else { print "lost [$bytes]\n" } |
| 595 |
} |
| 596 |
|
| 597 |
print "\n|", strings($msg) ? strings($msg) : "", "|\n"; |
| 598 |
|
| 599 |
logmsg \*LOG, "\nMessage checksum is %x\n", checksum($msg); |
| 600 |
|
| 601 |
$count != $packetlen && print "Error: bytes sent != packet length\n"; |
| 602 |
} |
| 603 |
|
| 604 |
sub checksum { |
| 605 |
my $msg = shift; |
| 606 |
my $checksum = unpack("%C*", $msg); |
| 607 |
$checksum %= 65535; |
| 608 |
return $checksum; |
| 609 |
} |
| 610 |
|
| 611 |
sub send_reply { |
| 612 |
|
| 613 |
logmsg \*LOG, "\nCONTEXT = $CONTEXT\n"; # jhjh |
| 614 |
|
| 615 |
my ($socket, $msg) = @_; |
| 616 |
my ($text_msg, $bytes); |
| 617 |
|
| 618 |
$text_msg = strings($msg); |
| 619 |
|
| 620 |
if ($text_msg) { print "\ngot $text_msg from Client" } |
| 621 |
|
| 622 |
$reply = lookup_command($REP_LOOKUP_FILE, get_request_type($msg) ); |
| 623 |
|
| 624 |
# Disconnect |
| 625 |
if ( $CURR_CMD eq "DISCONNECT") { |
| 626 |
close($socket); |
| 627 |
exit(0); |
| 628 |
} |
| 629 |
|
| 630 |
# Handshakes |
| 631 |
if ( $CONTEXT eq "HANDSHAKE" ) { |
| 632 |
if ( $CURR_CMD eq "DESC_COLS" ) { |
| 633 |
$CURR_CMD = "ORA_BANNER"; |
| 634 |
$reply = lookup_command($REP_LOOKUP_FILE, $CURR_CMD ); |
| 635 |
} |
| 636 |
elsif ( $CURR_CMD eq "FETCH" ) { |
| 637 |
$CURR_CMD = "USER_HS1"; |
| 638 |
$reply = lookup_command($REP_LOOKUP_FILE, $CURR_CMD ); |
| 639 |
} |
| 640 |
elsif ( $CURR_CMD eq "FETCH_MORE" ) { |
| 641 |
$CURR_CMD = "USER_HS2"; |
| 642 |
$reply = lookup_command($REP_LOOKUP_FILE, $CURR_CMD ); |
| 643 |
} |
| 644 |
else { } |
| 645 |
} |
| 646 |
|
| 647 |
# Query |
| 648 |
if ( $CURR_CMD eq "QUERY") { # $CURR_CMD populated in get_request_type() |
| 649 |
if ( $text_msg =~ /SQLCQR_LOGINCHECK/i || |
| 650 |
$text_msg =~ /BANNER/i || |
| 651 |
$text_msg =~ /ACCESSIBLE_TABLES/i ) { |
| 652 |
$CURR_CMD = "SESSION"; |
| 653 |
$reply = lookup_command($REP_LOOKUP_FILE, $CURR_CMD ); |
| 654 |
} |
| 655 |
else { |
| 656 |
$CONTEXT = "QUERY"; |
| 657 |
$ROW_CNT = 0; |
| 658 |
|
| 659 |
logmsg \*LOG, "calling get_query\n"; # jhjh |
| 660 |
$QUERY = get_query($msg); |
| 661 |
logmsg \*LOG, "Query is: $QUERY\n"; # jhjh |
| 662 |
|
| 663 |
} |
| 664 |
} |
| 665 |
|
| 666 |
# Query Follow-up |
| 667 |
if ($CONTEXT eq "QUERY") { |
| 668 |
if ( $CURR_CMD eq "DESC_COLS" || |
| 669 |
$CURR_CMD eq "FETCH" || |
| 670 |
$CURR_CMD eq "FETCH_MORE" ) { |
| 671 |
|
| 672 |
if ( $CURR_CMD eq "DESC_COLS" ) { |
| 673 |
# pass query to obj_srvr |
| 674 |
do_query($QUERY, $socket); # populates @QUERY_RESULT |
| 675 |
} |
| 676 |
|
| 677 |
$reply = prepare_ora_reply(\@QUERY_RESULT, $CURR_CMD); |
| 678 |
# note: prepare_ora_reply removes data from @QUERY_RESULT as it |
| 679 |
# prepares it. (It may take many fetch/reply's to return all |
| 680 |
# the data in @QUERY_RESULT. Some or all of an array element |
| 681 |
# (a record) may be returned and removed.) |
| 682 |
} |
| 683 |
} |
| 684 |
|
| 685 |
# Send Reply |
| 686 |
if ($reply) { |
| 687 |
$reply =~ s/\s+/ /sg; # clean up for display (and for send) |
| 688 |
$reply = uc($reply); |
| 689 |
|
| 690 |
print "Sending the following to Client: $reply"; |
| 691 |
$SEQ++; |
| 692 |
send_command($socket, $reply); |
| 693 |
logmsg \*LOG, "$reply\n"; |
| 694 |
|
| 695 |
# send ora_err packet after user_hs1 packet |
| 696 |
if ($CURR_CMD eq "USER_HS1") { |
| 697 |
$reply = lookup_command($REP_LOOKUP_FILE, "SESSION_ORAERR" ); |
| 698 |
$reply =~ s/\s+/ /sg; # clean up for display |
| 699 |
$reply = uc($reply); |
| 700 |
print "Sending the following to Client: $reply"; |
| 701 |
$SEQ++; |
| 702 |
send_command($socket, $reply); |
| 703 |
logmsg \*LOG, "$reply\n"; |
| 704 |
} |
| 705 |
} |
| 706 |
} |
| 707 |
|
| 708 |
sub get_request_type { |
| 709 |
my $msg = shift; |
| 710 |
|
| 711 |
my ($id_byte1, $id_byte2, $body, $pckt_type, $logmsg, $lenH, $lenL); |
| 712 |
|
| 713 |
($lenH, $lenL, $TNS_TYPE, $id_byte1, $id_byte2) = |
| 714 |
unpack("C C x2 C x5 C C", $msg); |
| 715 |
|
| 716 |
if ( defined($id_byte1) && defined($id_byte2) && |
| 717 |
# jhjh !! make sure we want this |
| 718 |
$lenL != 0x00 && $lenH != 0x0b ) { # in case short messages |
| 719 |
# concatenated by read |
| 720 |
|
| 721 |
$logmsg = sprintf("\nPACKET RECEIVED: TNS_TYPE = $TNS_TYPE, byte 11 = %x, byte 12 = %x\n", |
| 722 |
$id_byte1, $id_byte2); |
| 723 |
logmsg \*LOG, $logmsg; |
| 724 |
|
| 725 |
$pckt_type = $ora_pckt_types{$id_byte1}->{$id_byte2}; |
| 726 |
|
| 727 |
$CURR_CMD = $pckt_type; |
| 728 |
|
| 729 |
return $pckt_type; |
| 730 |
} |
| 731 |
else { |
| 732 |
logmsg \*LOG, "\nSHORT PACKET RECEIVED\n"; # jhjh |
| 733 |
$CURR_CMD = "SHORT_PACKET"; |
| 734 |
if ( $id_byte1 == 0x01 ) { return "BREAK" } |
| 735 |
if ( $id_byte1 == 0x02 ) { return "RESET" } |
| 736 |
} |
| 737 |
|
| 738 |
# fall-through |
| 739 |
return "UNKNOWN"; |
| 740 |
} |
| 741 |
|
| 742 |
sub read_config_files { |
| 743 |
|
| 744 |
$/ = ";"; |
| 745 |
|
| 746 |
open(IN, "<$CMD_LOOKUP_FILE") || die "$!: cannot open $CMD_LOOKUP_FILE for reading"; |
| 747 |
|
| 748 |
while ( <IN> ) { |
| 749 |
chomp; |
| 750 |
|
| 751 |
/:/ || next; |
| 752 |
|
| 753 |
($fld1, $fld2) = split(/:/, $_); |
| 754 |
|
| 755 |
$fld1 =~ s/^\s*//g; |
| 756 |
$fld1 =~ s/\s*$//g; |
| 757 |
$fld2 =~ s/^\s*//g; |
| 758 |
$fld2 =~ s/\s*$//g; |
| 759 |
|
| 760 |
$tns_cmds{$fld1} = $fld2; |
| 761 |
} |
| 762 |
|
| 763 |
close(IN); |
| 764 |
|
| 765 |
open(IN, "<$REP_LOOKUP_FILE") || die "$!: cannot open $REP_LOOKUP_FILE for reading"; |
| 766 |
|
| 767 |
while ( <IN> ) { |
| 768 |
chomp; |
| 769 |
|
| 770 |
/:/ || next; |
| 771 |
|
| 772 |
($fld1, $fld2) = split(/:/, $_); |
| 773 |
|
| 774 |
$fld1 =~ s/^\s*//g; |
| 775 |
$fld1 =~ s/\s*$//g; |
| 776 |
$fld2 =~ s/^\s*//g; |
| 777 |
$fld2 =~ s/\s*$//g; |
| 778 |
|
| 779 |
$tns_replies{$fld1} = $fld2; |
| 780 |
} |
| 781 |
|
| 782 |
close(IN); |
| 783 |
|
| 784 |
$/ = "\n"; |
| 785 |
} |
| 786 |
|
| 787 |
sub unix_line255 { |
| 788 |
|
| 789 |
my $str = shift; |
| 790 |
|
| 791 |
my ($pos, $space_pos, $str_254, $new_str); |
| 792 |
|
| 793 |
for ( $pos = 0; !defined($str_254) || $pos <= length($str); $pos += 254 ) { |
| 794 |
|
| 795 |
$str_254 = substr($str, $pos, 254); |
| 796 |
|
| 797 |
$space_pos = rindex($str_254, " "); |
| 798 |
|
| 799 |
if ($space_pos != -1) { |
| 800 |
|
| 801 |
substr($str_254, $space_pos, 1) = "\n"; |
| 802 |
} |
| 803 |
|
| 804 |
$new_str .= $str_254; |
| 805 |
} |
| 806 |
|
| 807 |
return $new_str; |
| 808 |
} |
| 809 |
|
| 810 |
|
| 811 |
sub strings { |
| 812 |
my $msg = shift; |
| 813 |
|
| 814 |
my ($count, $byte, $string); |
| 815 |
|
| 816 |
$count = 0; |
| 817 |
|
| 818 |
while ( ($byte) = unpack("x$count C", $msg) ) { |
| 819 |
|
| 820 |
$count++; |
| 821 |
|
| 822 |
if ( $byte >= 32 && $byte <= 126 ) { |
| 823 |
$string .= chr($byte); |
| 824 |
} |
| 825 |
} |
| 826 |
|
| 827 |
return $string; |
| 828 |
} |
| 829 |
|
| 830 |
sub get_query { |
| 831 |
|
| 832 |
my $msg = shift; |
| 833 |
|
| 834 |
my ($len, $query, $skip); |
| 835 |
|
| 836 |
# the real DB's version of oracle sends sql in 64-byte blocks preceded |
| 837 |
# by a length-byte. |
| 838 |
$skip = 23; |
| 839 |
$len = unpack("x$skip C", $msg); $skip++; |
| 840 |
logmsg \*LOG, "first \$len is $len\n"; # jhjh |
| 841 |
|
| 842 |
while ( $len == 64 ) { |
| 843 |
$query .= unpack("x$skip Z$len", $msg); |
| 844 |
$skip += $len; |
| 845 |
$len = unpack("x$skip C", $msg); $skip++; |
| 846 |
logmsg \*LOG, "\$len is $len, \$query is $query\n"; # jhjh |
| 847 |
} |
| 848 |
$query .= unpack("x$skip Z$len", $msg); # get partial block at end |
| 849 |
|
| 850 |
logmsg \*LOG, "\$query is $query\n"; # jhjh |
| 851 |
|
| 852 |
return unix_line255($query . ";"); |
| 853 |
|
| 854 |
} |
| 855 |
|
| 856 |
sub do_query { |
| 857 |
|
| 858 |
my ($query, $socket) = @_; |
| 859 |
|
| 860 |
my ($buf, $c, $i, $record, $last_part_of_rec); |
| 861 |
|
| 862 |
print Obj_Srvr "sql\n"; |
| 863 |
|
| 864 |
print "\nsent sql mode request to Obj_Srvr\n"; # jhjh |
| 865 |
|
| 866 |
$last_part_of_rec = ""; |
| 867 |
|
| 868 |
REPLY_LOOP: |
| 869 |
while ( sysread(\*Obj_Srvr, $buf, $MAX_LINESIZE) ) { |
| 870 |
|
| 871 |
# sysread will pull in whatever's there, doesn't care where \n is; |
| 872 |
# so we need to break $buf into records delimited by \n. |
| 873 |
|
| 874 |
$record = $last_part_of_rec; |
| 875 |
|
| 876 |
for ($i = 0; $i < length($buf); $i++) { |
| 877 |
|
| 878 |
$c = substr($buf, $i, 1); |
| 879 |
|
| 880 |
if ( $c eq "\n" ) { |
| 881 |
|
| 882 |
logmsg \*LOG, "$record\n"; |
| 883 |
print "\nReading from Obj_Srvr: got $record\n"; # jhjh |
| 884 |
|
| 885 |
if ( $record =~ /^QUIT$/ ) { |
| 886 |
logmsg \*LOG, "sending disconnect to client\n"; |
| 887 |
send_command($socket, $LOGOUT_BYTES); |
| 888 |
close($socket); |
| 889 |
exit(0); |
| 890 |
} |
| 891 |
|
| 892 |
if ( $record =~ /^SQL> $/ ) { |
| 893 |
print "\nGot SQL > Prompt from Obj_Srvr\n"; # jhjh |
| 894 |
print Obj_Srvr "$query\n"; |
| 895 |
} |
| 896 |
|
| 897 |
$record =~ s/^\s+//g; |
| 898 |
$record =~ s/\s+$//g; |
| 899 |
if ($record && |
| 900 |
$record !~ /rows returned/ && |
| 901 |
$record !~ /^SQL>$/ ) { |
| 902 |
push @QUERY_RESULT, $record; |
| 903 |
} |
| 904 |
|
| 905 |
last REPLY_LOOP |
| 906 |
if ($record && $record =~ /^\d+\s+rows returned$/ ); |
| 907 |
|
| 908 |
# fall-through |
| 909 |
$last_part_of_rec = ""; |
| 910 |
$record = ""; |
| 911 |
} |
| 912 |
else { $record .= $c } |
| 913 |
|
| 914 |
} # for loop |
| 915 |
|
| 916 |
$last_part_of_rec = $record; # maybe didn't get a '\n', or |
| 917 |
# didn't end on a '\n' |
| 918 |
} |
| 919 |
} |
| 920 |
|
| 921 |
sub prepare_ora_reply { |
| 922 |
|
| 923 |
my ($ra_query_result, $cmd) = @_; |
| 924 |
|
| 925 |
my ($bytes, @bytes, $pckt_len, $replenH, $replenL); |
| 926 |
|
| 927 |
$bytes = get_reply_data($ra_query_result, $cmd); |
| 928 |
|
| 929 |
@bytes = split(" ", $bytes); |
| 930 |
|
| 931 |
$pckt_len = @bytes; |
| 932 |
$pckt_len += 2; |
| 933 |
$replenH = $pckt_len >> 8; |
| 934 |
$replenL = $pckt_len & 0xff; |
| 935 |
$replenH = sprintf "%.2x", $replenH; |
| 936 |
$replenL = sprintf "%.2x", $replenL; |
| 937 |
|
| 938 |
$bytes = "$replenH $replenL" . $bytes; |
| 939 |
|
| 940 |
return $bytes; |
| 941 |
} |
| 942 |
|
| 943 |
sub get_reply_data { |
| 944 |
my ($ra_query_result, $cmd) = @_; |
| 945 |
|
| 946 |
my ($bytes, @bytes, $len, $lenH, $lenL, $footer, $col_desc, $row_cntH, |
| 947 |
$row_cnt_bytes, $row_cnt_bytes_str, $low_bytes, $row_cnt_str, |
| 948 |
$col_size, $rec_cnt, @columns, $col_name, $col_names, $packet_size, |
| 949 |
$record, $col_data, $save_len, $seqH, $seqL); |
| 950 |
|
| 951 |
if ( $cmd eq "DESC_COLS" ) { |
| 952 |
|
| 953 |
# obj_srvr returns column data delimited by '|' |
| 954 |
@columns = split /\|/, shift @QUERY_RESULT; |
| 955 |
$NUM_COLS = @columns; |
| 956 |
$NUM_COLS = sprintf("%.2x", $NUM_COLS); |
| 957 |
|
| 958 |
$bytes = " 00 00 06 00 00 00 00 00 08 $NUM_COLS 00 $NUM_COLS"; |
| 959 |
|
| 960 |
$col_names = ""; |
| 961 |
|
| 962 |
COL_DESC_LOOP: |
| 963 |
while ( $col_desc = shift @columns ) { |
| 964 |
print "\ncol_desc = $col_desc\n"; # jhjh |
| 965 |
$save_len = length($bytes); # so we can roll back to this |
| 966 |
# if we exceed packet length |
| 967 |
|
| 968 |
($col_name, $col_size) = split /:/, $col_desc; |
| 969 |
|
| 970 |
$lenH = $col_size >> 8; |
| 971 |
$lenL = $col_size & 0xff; |
| 972 |
$lenH = sprintf "%.2x", $lenH; |
| 973 |
$lenL = sprintf "%.2x", $lenL; |
| 974 |
|
| 975 |
# jhjh 02 at byte 3 might mean number; 80 must mean varchar2. |
| 976 |
|
| 977 |
# size of column in DB is held in $lenH $lenL |
| 978 |
if ( $BI_QUERY_VERSION eq '60' ) { |
| 979 |
$bytes .= " |
| 980 |
00 01 80 00 $lenH $lenL 00 00 00 00 00 00 00 00 00 00 |
| 981 |
00 00 00 00 00 00 00 01 00 01 00 0C 00 00 00 00 |
| 982 |
00 00 00 00 00 00 00"; |
| 983 |
} |
| 984 |
elsif ( $BI_QUERY_VERSION eq '70' ) { |
| 985 |
$bytes .= " |
| 986 |
00 01 80 00 $lenH $lenL 00 00 00 00 00 00 00 00 00 00 |
| 987 |
00 00 00 00 00 00 00 01 00 01 $lenL 00 00 00 00 0C |
| 988 |
00 00 00 00 00 00 00 00 00 00 00"; |
| 989 |
} |
| 990 |
|
| 991 |
|
| 992 |
# ($bytes keeps growing due to ".=" above - check size) |
| 993 |
@bytes = split(" ", $bytes); |
| 994 |
$packet_size = @bytes; $packet_size += length($col_names) + |
| 995 |
length($col_name) + 1 + 4; |
| 996 |
# add in missing first two |
| 997 |
# bytes + extra two at end |
| 998 |
|
| 999 |
if ( $packet_size > $MAX_PACKETSIZE ) { |
| 1000 |
$bytes = substr($bytes, 0, $save_len - 1); |
| 1001 |
last COL_DESC_LOOP; |
| 1002 |
# jhjh - Need to see what the drill is if you can't send |
| 1003 |
# the whole col desc in a single packet. Does the client |
| 1004 |
# send another request, or do you send another packet |
| 1005 |
# unprompted? |
| 1006 |
} |
| 1007 |
|
| 1008 |
$col_names .= $col_name . "\""; |
| 1009 |
} |
| 1010 |
|
| 1011 |
$col_names = hexify($col_names); |
| 1012 |
|
| 1013 |
@bytes = split(" ", $col_names); |
| 1014 |
$len = @bytes; |
| 1015 |
$lenH = $len >> 8; |
| 1016 |
$lenL = $len & 0xff; |
| 1017 |
$lenH = sprintf "%.2x", $lenH; |
| 1018 |
$lenL = sprintf "%.2x", $lenL; |
| 1019 |
|
| 1020 |
# length of column names string is held in $lenH $lenL |
| 1021 |
$bytes .= " $lenH $lenL $lenH $lenL $col_names 09"; |
| 1022 |
if ( $BI_QUERY_VERSION eq '70' ) { $bytes .= " 05 00 00 00" } |
| 1023 |
|
| 1024 |
# in case we couldn't send whole record |
| 1025 |
$record = ""; |
| 1026 |
foreach $col_desc (@columns) { |
| 1027 |
$record .= $col_desc . "|"; |
| 1028 |
} |
| 1029 |
|
| 1030 |
if (@columns) { |
| 1031 |
$record =~ s/\|$//; |
| 1032 |
unshift @QUERY_RESULT, $record; # save cols-to-send |
| 1033 |
# on @QUERY_RESULT |
| 1034 |
} |
| 1035 |
|
| 1036 |
else { |
| 1037 |
shift @QUERY_RESULT; # throw away column header line |
| 1038 |
$RECORD_CNT = @QUERY_RESULT; |
| 1039 |
} |
| 1040 |
} # if ( $cmd eq "DESC_COLS" ) |
| 1041 |
|
| 1042 |
else { |
| 1043 |
|
| 1044 |
$ROW_CNT++; |
| 1045 |
|
| 1046 |
$seqH = $SEQ >> 8; |
| 1047 |
$seqL = $SEQ & 0xff; |
| 1048 |
$seqH = sprintf "%.2x", $seqH; |
| 1049 |
$seqL = sprintf "%.2x", $seqL; |
| 1050 |
|
| 1051 |
|
| 1052 |
if ( $ROW_CNT == 1 ) { |
| 1053 |
|
| 1054 |
if ( $BI_QUERY_VERSION eq '60' ) { |
| 1055 |
$row_cnt_bytes = 13; # just to make packet size calculation |
| 1056 |
# below come out right |
| 1057 |
# jhjh - does not handle more than FF FF FF FF rows since |
| 1058 |
# byte 13 = 04 |
| 1059 |
$footer = " 00 08 02 00 00 00 00 00 00 00 00 40 04 01 00 00 |
| 1060 |
00 00 00 00 00 00 00 01 00 00 00 03 00 20 00 00 |
| 1061 |
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |
| 1062 |
00 00 $seqH $seqL 00 00 01 00 00 00 00 00 00 00 00 00 |
| 1063 |
00"; |
| 1064 |
} |
| 1065 |
elsif ( $BI_QUERY_VERSION eq '70' ) { |
| 1066 |
$row_cnt_bytes = 12; # just to make packet size calculation |
| 1067 |
# below come out right |
| 1068 |
# jhjh - does not handle more than FF FF FF FF rows since |
| 1069 |
# byte 12 = 04 |
| 1070 |
|
| 1071 |
$footer = " 00 08 02 00 00 00 00 00 00 00 00 40 04 05 00 00 |
| 1072 |
00 01 00 00 00 00 00 00 00 00 00 01 00 00 00 03 |
| 1073 |
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |
| 1074 |
00 00 00 00 00 00 $seqH $seqL 00 00 01 00 00 00 00 00 |
| 1075 |
00 00 00 00 00 00 00 00 00 00 00 00"; |
| 1076 |
} |
| 1077 |
} |
| 1078 |
else { |
| 1079 |
|
| 1080 |
$row_cnt_bytes = (sprintf "%d", log($ROW_CNT) / log(256) ) + 1; |
| 1081 |
$low_bytes = $row_cnt_bytes - 1; |
| 1082 |
|
| 1083 |
$row_cntH = $ROW_CNT; $row_cnt_str = ""; |
| 1084 |
# get high byte |
| 1085 |
while ( $low_bytes >= 0 ) { |
| 1086 |
|
| 1087 |
$row_cntH >>= (8 * $low_bytes); |
| 1088 |
|
| 1089 |
# prefix it (followed by a space) to $row_cnt_str |
| 1090 |
$row_cnt_str = (sprintf " %.2x", $row_cntH) . $row_cnt_str; |
| 1091 |
|
| 1092 |
# get rid of high byte that we just prefixed to $row_cnt_str |
| 1093 |
$row_cntH = $ROW_CNT & ( (256 ** $low_bytes) - 1); |
| 1094 |
|
| 1095 |
$low_bytes--; |
| 1096 |
} |
| 1097 |
|
| 1098 |
$row_cnt_bytes_str .= sprintf "%.2x", $row_cnt_bytes; |
| 1099 |
|
| 1100 |
# $row_cnt_str may be 1 or more space-delimited bytes |
| 1101 |
for ( $row_cnt_bytes_str .. 04 ) { $row_cnt_str .= " 00" } |
| 1102 |
$row_cnt_bytes_str = "04"; # this limits us to FF FF FF FF |
| 1103 |
# (4,294,967,295) rows |
| 1104 |
|
| 1105 |
if ( $BI_QUERY_VERSION eq '60' ) { |
| 1106 |
#$footer = " 00 $row_cnt_bytes_str $row_cnt_str |
| 1107 |
# 00 00 00 00 00 00 01 00 00 00 03 00 20 00 00 00 |
| 1108 |
# 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |
| 1109 |
# 00 $seqH $seqL 00 00 01 00 00 00 00 00 00 00"; |
| 1110 |
|
| 1111 |
# jhjh - don't send row count until we figure out why the |
| 1112 |
# client displays the last row twice. |
| 1113 |
$footer = " 00 $row_cnt_bytes_str 00 00 00 00 |
| 1114 |
00 00 00 00 00 00 01 00 00 00 03 00 20 00 00 00 |
| 1115 |
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |
| 1116 |
00 $seqH $seqL 00 00 01 00 00 00 00 00 00 00"; |
| 1117 |
} |
| 1118 |
elsif ( $BI_QUERY_VERSION eq '70' ) { |
| 1119 |
# jhjh - don't send row count until we figure out why the |
| 1120 |
# client displays the last row twice. |
| 1121 |
$footer = " |
| 1122 |
00 $row_cnt_bytes_str 05 00 00 00 02 00 00 00 00 00 00 00 00 00 |
| 1123 |
01 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00 |
| 1124 |
00 00 00 00 00 00 00 00 00 00 00 $seqH $seqL 00 00 01 |
| 1125 |
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |
| 1126 |
00"; |
| 1127 |
} |
| 1128 |
} |
| 1129 |
|
| 1130 |
if ($ROW_CNT > $RECORD_CNT ) { # all data returned |
| 1131 |
|
| 1132 |
# NO DATA FOUND |
| 1133 |
if ( $BI_QUERY_VERSION eq '60' ) { |
| 1134 |
# 05 7B = 01403 (Oracle error code for no data found): |
| 1135 |
# this is in bytes 14 and 15 (low byte first) |
| 1136 |
return " 00 00 06 00 00 00 00 00 04 00 00 00 00 7B 05 00 |
| 1137 |
00 00 00 01 00 00 00 03 00 40 00 00 00 00 00 00 |
| 1138 |
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 32 |
| 1139 |
00 00 01 00 00 00 19 4F 52 41 2D 30 31 34 30 33 |
| 1140 |
3A 20 6E 6F 20 64 61 74 61 20 66 6F 75 6E 64 0A"; |
| 1141 |
} |
| 1142 |
|
| 1143 |
elsif ( $BI_QUERY_VERSION eq '70' ) { |
| 1144 |
# 05 7B = 01403 (Oracle error code for no data found): |
| 1145 |
# this is in bytes 18 and 19 (low byte first) |
| 1146 |
return " 00 00 06 00 00 00 00 00 04 05 00 00 00 01 00 00 |
| 1147 |
00 7B 05 00 00 00 00 01 00 00 00 03 00 00 00 00 |
| 1148 |
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |
| 1149 |
00 00 00 29 00 00 01 00 00 00 00 00 00 00 00 00 |
| 1150 |
00 00 00 00 00 00 00 00 19 4F 52 41 2D 30 31 34 |
| 1151 |
30 33 3A 20 6E 6F 20 64 61 74 61 20 66 6F 75 6E |
| 1152 |
64 0A"; |
| 1153 |
} |
| 1154 |
} |
| 1155 |
|
| 1156 |
# fall-through |
| 1157 |
|
| 1158 |
if ( $BI_QUERY_VERSION eq '60' ) { |
| 1159 |
$bytes = " 00 00 06 00 00 00 00 00 06 02 00 00 00 00 01 00 |
| 1160 |
00 00 07"; |
| 1161 |
# " 00 00 06 00 00 00 00 00 06 02 02 00 00 00 01 00 |
| 1162 |
# 00 00 07"; |
| 1163 |
} |
| 1164 |
|
| 1165 |
elsif ( $BI_QUERY_VERSION eq '70' ) { |
| 1166 |
$bytes = " 00 00 06 00 00 00 00 00 06 02 04 00 00 00 01 00 |
| 1167 |
00 00 00 00 00 00 00 00 00 00 07"; |
| 1168 |
} |
| 1169 |
|
| 1170 |
@columns = split /\|/, shift @QUERY_RESULT, -1; |
| 1171 |
# keep trailing nulls |
| 1172 |
|
| 1173 |
COL_DATA_LOOP: |
| 1174 |
while (defined($col_data = shift @columns) ) { |
| 1175 |
|
| 1176 |
# handle null values |
| 1177 |
if (!$col_data and |
| 1178 |
$col_data ne 0) { |
| 1179 |
|
| 1180 |
$lenL = sprintf "%.2x", 2; |
| 1181 |
|
| 1182 |
# hex 05 7D = 1405: Oracle error code for "fetched column |
| 1183 |
# value is NULL" |
| 1184 |
$col_data = hexify( chr(0x05) . chr(0x7D) ); |
| 1185 |
} |
| 1186 |
else { |
| 1187 |
$len = length($col_data); |
| 1188 |
$lenH = $len >> 8; |
| 1189 |
$lenL = $len & 0xff; |
| 1190 |
$lenH = sprintf "%.2x", $lenH; |
| 1191 |
$lenL = sprintf "%.2x", $lenL; |
| 1192 |
|
| 1193 |
$save_len = length($bytes); |
| 1194 |
|
| 1195 |
$col_data = hexify($col_data); |
| 1196 |
} |
| 1197 |
|
| 1198 |
# length of column data is held in $lenL (where is lenH?) |
| 1199 |
# (I guess lenH could be the second "00" below, but the very |
| 1200 |
# first field doesn't have a place for this in the packets |
| 1201 |
# I've seen in the log file.) |
| 1202 |
$bytes .= " $lenL $col_data 00 00"; |
| 1203 |
|
| 1204 |
@bytes = split(" ", $bytes); |
| 1205 |
$packet_size = @bytes; $packet_size += (50 + $row_cnt_bytes); |
| 1206 |
# add in footer size plus |
| 1207 |
# missing first two bytes |
| 1208 |
|
| 1209 |
if ( $packet_size > $MAX_PACKETSIZE ) { |
| 1210 |
$bytes = substr($bytes, 0, $save_len - 1); |
| 1211 |
last COL_DATA_LOOP; |
| 1212 |
} |
| 1213 |
} |
| 1214 |
|
| 1215 |
$bytes = substr($bytes, 0, length($bytes) - 3); # remove last "00" |
| 1216 |
$bytes .= "$footer"; |
| 1217 |
|
| 1218 |
# in case we couldn't send whole record |
| 1219 |
$record = ""; |
| 1220 |
foreach $col_data (@columns) { |
| 1221 |
$record .= $col_data . "|"; |
| 1222 |
} |
| 1223 |
if (@columns) { |
| 1224 |
$record =~ s/\|$//; |
| 1225 |
unshift @QUERY_RESULT, $record; |
| 1226 |
$ROW_CNT--; |
| 1227 |
} |
| 1228 |
} |
| 1229 |
|
| 1230 |
return $bytes; |
| 1231 |
} |
| 1232 |
|
| 1233 |
sub logged_in { |
| 1234 |
my ($state, $bytes) = @_; |
| 1235 |
|
| 1236 |
my ($req_type); |
| 1237 |
|
| 1238 |
if ($state eq "USER_PASSWD") { |
| 1239 |
logmsg \*LOG, "state = USER_PASSWD\n"; |
| 1240 |
$req_type = get_request_type($bytes); |
| 1241 |
|
| 1242 |
if ( $req_type =~ /ACK|ACK70/ ) { |
| 1243 |
|
| 1244 |
if ($req_type eq "ACK70") { |
| 1245 |
$GOOD_LOGIN_ACK = $GOOD_LOGIN_ACK70; |
| 1246 |
$BI_QUERY_VERSION = '70'; |
| 1247 |
} |
| 1248 |
|
| 1249 |
logmsg \*LOG, "state = USER_PASSWD, getting ACK\n"; |
| 1250 |
logmsg \*LOG, hexdump($bytes), "\n"; |
| 1251 |
logmsg \*LOG, $GOOD_LOGIN_ACK, "\n"; |
| 1252 |
|
| 1253 |
if ( hexdump($bytes) eq $GOOD_LOGIN_ACK ) { |
| 1254 |
logmsg \*LOG, "GOOD_LOGIN"; |
| 1255 |
return 1; |
| 1256 |
} |
| 1257 |
else { |
| 1258 |
logmsg \*LOG, "BAD_LOGIN"; |
| 1259 |
$BAD_LOGIN = 1; |
| 1260 |
} |
| 1261 |
} |
| 1262 |
} |
| 1263 |
|
| 1264 |
# fall-through |
| 1265 |
return 0; |
| 1266 |
} |
| 1267 |
|
| 1268 |
sub handshake_done { |
| 1269 |
my $bytes = shift; |
| 1270 |
|
| 1271 |
if ( strings($bytes) =~ /alter session set NLS_DATE_FORMAT/i ) { |
| 1272 |
return 1; |
| 1273 |
} |
| 1274 |
|
| 1275 |
# fall-through |
| 1276 |
return 0; |
| 1277 |
} |
| 1278 |
|
| 1279 |
sub obj_srvr_user { |
| 1280 |
my $real_db = shift; |
| 1281 |
|
| 1282 |
my ($qry_hdr, $len, $lenH, $lenL, $qry_len_plus_1, $qry_hex, $bytes, |
| 1283 |
$valid_obj_srvr_user); |
| 1284 |
|
| 1285 |
$qry_len_plus_1 = length($OBJ_SRVR_USER_QRY) + 1; |
| 1286 |
# header is 23 |
| 1287 |
$len = 23 + $qry_len_plus_1; # plus 1 for linefeed on the end |
| 1288 |
|
| 1289 |
$lenH = $len >> 8; |
| 1290 |
$lenL = $len & 0xff; |
| 1291 |
|
| 1292 |
# now "hex format" the lengths |
| 1293 |
$qry_len_plus_1 = sprintf "%.2x", $qry_len_plus_1; |
| 1294 |
$lenH = sprintf "%.2x", $lenH; |
| 1295 |
$lenL = sprintf "%.2x", $lenL; |
| 1296 |
|
| 1297 |
# has 23 bytes |
| 1298 |
$qry_hdr = "$lenH $lenL 00 00 06 00 00 00 00 00 03 03 13 01 00 00 |
| 1299 |
00 01 40 00 00 00 $qry_len_plus_1"; |
| 1300 |
|
| 1301 |
$qry_hex = $qry_hdr . " " . hexify($OBJ_SRVR_USER_QRY) . " 0a"; |
| 1302 |
|
| 1303 |
# ======================================================================= |
| 1304 |
# Send a sequence of commands in order to send $qry_hex and get results |
| 1305 |
# ======================================================================= |
| 1306 |
send_command($real_db, lookup_command($REP_LOOKUP_FILE, "HANDSHAKE7_2_CMD") ); |
| 1307 |
sysread($real_db, $bytes, $MAX_LINESIZE) or return 0; # get ACK |
| 1308 |
logmsg \*LOG, "DB, for HANDSHAKE7_2_CMD: $bytes\n"; |
| 1309 |
|
| 1310 |
send_command($real_db, lookup_command($REP_LOOKUP_FILE, "HANDSHAKE7_CMD") ); |
| 1311 |
sysread($real_db, $bytes, $MAX_LINESIZE) or return 0; # get ACK |
| 1312 |
logmsg \*LOG, "DB, for HANDSHAKE7_CMD: $bytes\n"; |
| 1313 |
|
| 1314 |
send_command($real_db, lookup_command($REP_LOOKUP_FILE, "SQL_OPEN_CMD") ); |
| 1315 |
sysread($real_db, $bytes, $MAX_LINESIZE) or return 0; # get ACK |
| 1316 |
logmsg \*LOG, "DB, for SQL_OPEN_CMD: $bytes\n"; |
| 1317 |
|
| 1318 |
# send valid_user query |
| 1319 |
send_command($real_db, $qry_hex); |
| 1320 |
logmsg \*LOG, "$0: $qry_hex\n"; |
| 1321 |
sysread($real_db, $bytes, $MAX_LINESIZE) or return 0; # get ACK |
| 1322 |
logmsg \*LOG, "DB, for Query: $bytes\n"; |
| 1323 |
|
| 1324 |
send_command($real_db, lookup_command($REP_LOOKUP_FILE, "QUERY_SECOND_CMD") ); |
| 1325 |
sysread($real_db, $bytes, $MAX_LINESIZE) or return 0; # get ACK |
| 1326 |
logmsg \*LOG, "DB, for QUERY_SECOND_CMD: $bytes\n"; |
| 1327 |
|
| 1328 |
send_command($real_db, lookup_command($REP_LOOKUP_FILE, "DESC_COLS_CMD") ); |
| 1329 |
sysread($real_db, $bytes, $MAX_LINESIZE) or return 0; # get col desc |
| 1330 |
logmsg \*LOG, "DB, for DESC_COLS_CMD: $bytes\n"; |
| 1331 |
|
| 1332 |
if ($BI_QUERY_VERSION eq '60') { |
| 1333 |
send_command($real_db, lookup_command($REP_LOOKUP_FILE, "FETCH_CMD") ); |
| 1334 |
} |
| 1335 |
elsif ($BI_QUERY_VERSION eq '70') { |
| 1336 |
send_command($real_db, lookup_command($REP_LOOKUP_FILE, "FETCH_CMD70") ); |
| 1337 |
} |
| 1338 |
|
| 1339 |
$valid_obj_srvr_user = 0; |
| 1340 |
|
| 1341 |
if ( sysread($real_db, $bytes, $MAX_LINESIZE) ) { |
| 1342 |
logmsg \*LOG, "DB, for FETCH_CMD: $bytes\n"; |
| 1343 |
|
| 1344 |
if (strings($bytes) =~ /valid_obj_srvr_user/i ) { |
| 1345 |
$valid_obj_srvr_user = 1; |
| 1346 |
} |
| 1347 |
|
| 1348 |
return $valid_obj_srvr_user; |
| 1349 |
|
| 1350 |
} |
| 1351 |
} |
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