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7a7884ad | 1 | #!/usr/bin/perl |
20d3226a | 2 | # |
5002372c | 3 | # setup-openssh.pl |
4 | # | |
95f536ac | 5 | # Adapts the installed gsi-openssh environment to the current machine, |
5002372c | 6 | # performing actions that originally occurred during the package's |
7 | # 'make install' phase. | |
701aa556 | 8 | # |
1eab725d | 9 | # Send comments/fixes/suggestions to: |
10 | # Chase Phillips <cphillip@ncsa.uiuc.edu> | |
701aa556 | 11 | # |
20d3226a | 12 | |
7e12c9a7 | 13 | # |
14 | # Get user's GPT_LOCATION since we may be installing this using a new(er) | |
15 | # version of GPT. | |
16 | # | |
17 | ||
18 | $gptpath = $ENV{GPT_LOCATION}; | |
19 | ||
20 | # | |
21 | # And the old standby.. | |
22 | # | |
23 | ||
4f276ad7 | 24 | $gpath = $ENV{GLOBUS_LOCATION}; |
ad71c979 | 25 | if (!defined($gpath)) |
26 | { | |
53a54c67 | 27 | die "GLOBUS_LOCATION needs to be set before running this script" |
ad71c979 | 28 | } |
29 | ||
7a7884ad | 30 | # |
31 | # Include standard modules | |
32 | # | |
33 | ||
34 | use Getopt::Long; | |
35 | use Cwd; | |
36 | use Cwd 'abs_path'; | |
37 | ||
8b73e3d0 | 38 | # |
39 | # modify the ld library path for when we call ssh executables | |
40 | # | |
41 | ||
42 | $oldldpath = $ENV{LD_LIBRARY_PATH}; | |
43 | $newldpath = "$gpath/lib"; | |
44 | if (length($oldldpath) > 0) | |
45 | { | |
46 | $newldpath .= ":$oldldpath"; | |
47 | } | |
48 | $ENV{LD_LIBRARY_PATH} = "$newldpath"; | |
49 | ||
ad71c979 | 50 | # |
51 | # i'm including this because other perl scripts in the gpt setup directories | |
52 | # do so | |
53 | # | |
54 | ||
7e12c9a7 | 55 | if (defined($gptpath)) |
56 | { | |
57 | @INC = (@INC, "$gptpath/lib/perl", "$gpath/lib/perl"); | |
58 | } | |
59 | else | |
60 | { | |
61 | @INC = (@INC, "$gpath/lib/perl"); | |
62 | } | |
ad71c979 | 63 | |
4f276ad7 | 64 | require Grid::GPT::Setup; |
65 | ||
7a7884ad | 66 | # |
67 | # script-centred variable initialization | |
68 | # | |
69 | ||
ad71c979 | 70 | my $globusdir = $gpath; |
ad71c979 | 71 | my $myname = "setup-openssh.pl"; |
72 | ||
20d3226a | 73 | # |
74 | # Set up path prefixes for use in the path translations | |
75 | # | |
76 | ||
d0a1bda7 | 77 | $prefix = ${globusdir}; |
78 | $exec_prefix = "${prefix}"; | |
79 | $bindir = "${exec_prefix}/bin"; | |
9cc10d0e | 80 | $sbindir = "${exec_prefix}/sbin"; |
95f536ac | 81 | $sysconfdir = "$prefix/etc/ssh"; |
82 | $localsshdir = "/etc/ssh"; | |
20bb6dc8 | 83 | $setupdir = "$prefix/setup/gsi_openssh_setup"; |
e9ec5455 | 84 | |
7a7884ad | 85 | # |
86 | # standard key types and their root file name mappings | |
87 | # | |
88 | ||
95f536ac | 89 | my $keyfiles = { |
90 | "dsa" => "ssh_host_dsa_key", | |
91 | "rsa" => "ssh_host_rsa_key", | |
92 | "rsa1" => "ssh_host_key", | |
93 | }; | |
823981ba | 94 | |
7a7884ad | 95 | # |
96 | # argument specification. we offload some processing work from later functions | |
97 | # to verify correct args by using anon subs in various places. | |
98 | # | |
99 | ||
100 | my($interactive, $force, $verbose); | |
101 | ||
102 | GetOptions( | |
103 | 'interactive!' => \$interactive, | |
104 | 'force' => \$force, | |
105 | 'verbose' => \$verbose, | |
106 | ) or pod2usage(2); | |
107 | ||
108 | # | |
109 | # main execution. This should find its way into a subroutine at some future | |
110 | # point. | |
111 | # | |
112 | ||
4f3224f2 | 113 | print "$myname: Configuring package 'gsi_openssh'...\n"; |
114 | print "---------------------------------------------------------------------\n"; | |
70d921fc | 115 | print "Hi, I'm the setup script for the gsi_openssh package! I will create\n"; |
116 | print "a number of configuration files based on your local system setup. I\n"; | |
117 | print "will also attempt to copy or create a number of SSH key pairs for\n"; | |
118 | print "this machine.\n"; | |
4f3224f2 | 119 | print "\n"; |
70d921fc | 120 | print "(Loosely, if I find a pair of host keys in /etc/ssh, I will copy them\n"; |
121 | print "into \$GLOBUS_LOCATION/etc/ssh. Otherwise, I will generate them for\n"; | |
122 | print "you.)\n"; | |
4f3224f2 | 123 | print "\n"; |
124 | ||
70d921fc | 125 | if ( isForced() ) |
126 | { | |
127 | print "WARNING:\n"; | |
128 | print "\n"; | |
129 | print " Using the '-force' flag will cause all gsi_openssh_setup files to\n"; | |
130 | print " be removed and replaced by new versions! Backup any critical\n"; | |
131 | print " SSH configuration files before you choose to continue!\n"; | |
132 | print "\n"; | |
133 | } | |
134 | ||
4f3224f2 | 135 | $response = query_boolean("Do you wish to continue with the setup package?","y"); |
136 | if ($response eq "n") | |
137 | { | |
138 | print "\n"; | |
139 | print "Exiting gsi_openssh setup.\n"; | |
140 | ||
141 | exit 0; | |
142 | } | |
143 | ||
144 | print "\n"; | |
145 | ||
146 | makeConfDir(); | |
614e6d8b | 147 | copyPRNGFile(); |
4f3224f2 | 148 | $keyhash = determineKeys(); |
149 | runKeyGen($keyhash->{gen}); | |
150 | copyKeyFiles($keyhash->{copy}); | |
4f3224f2 | 151 | copyConfigFiles(); |
4f3224f2 | 152 | |
153 | my $metadata = new Grid::GPT::Setup(package_name => "gsi_openssh_setup"); | |
154 | ||
155 | $metadata->finish(); | |
156 | ||
157 | print "\n"; | |
158 | print "Additional Notes:\n"; | |
159 | print "\n"; | |
160 | print " o I see that you have your GLOBUS_LOCATION environmental variable\n"; | |
161 | print " set to:\n"; | |
162 | print "\n"; | |
163 | print " \t\"$gpath\"\n"; | |
164 | print "\n"; | |
165 | print " Remember to keep this variable set (correctly) when you want to\n"; | |
166 | print " use the executables that came with this package.\n"; | |
167 | print "\n"; | |
168 | print " After that you may run, e.g.:\n"; | |
169 | print "\n"; | |
170 | print " \t\$ . \$GLOBUS_LOCATION/etc/globus-user-env.sh\n"; | |
171 | print "\n"; | |
172 | print " to prepare your environment for running the gsi_openssh\n"; | |
173 | print " executables.\n"; | |
174 | print "---------------------------------------------------------------------\n"; | |
175 | print "$myname: Finished configuring package 'gsi_openssh'.\n"; | |
176 | ||
177 | exit; | |
178 | ||
179 | # | |
180 | # subroutines | |
181 | # | |
182 | ||
7a7884ad | 183 | ### initPRNGHash( ) |
184 | # | |
185 | # initialize the PRNG pathname hash | |
186 | # | |
187 | ||
188 | sub initPRNGHash( ) | |
189 | { | |
190 | # | |
191 | # standard prng to executable conversion names | |
192 | # | |
193 | ||
194 | addPRNGCommand("\@PROG_LS\@", "ls"); | |
195 | addPRNGCommand("\@PROG_NETSTAT\@", "netstat"); | |
196 | addPRNGCommand("\@PROG_ARP\@", "arp"); | |
197 | addPRNGCommand("\@PROG_IFCONFIG\@", "ifconfig"); | |
198 | addPRNGCommand("\@PROG_PS\@", "ps"); | |
199 | addPRNGCommand("\@PROG_JSTAT\@", "jstat"); | |
200 | addPRNGCommand("\@PROG_W\@", "w"); | |
201 | addPRNGCommand("\@PROG_WHO\@", "who"); | |
202 | addPRNGCommand("\@PROG_LAST\@", "last"); | |
203 | addPRNGCommand("\@PROG_LASTLOG\@", "lastlog"); | |
204 | addPRNGCommand("\@PROG_DF\@", "df"); | |
205 | addPRNGCommand("\@PROG_SAR\@", "sar"); | |
206 | addPRNGCommand("\@PROG_VMSTAT\@", "vmstat"); | |
207 | addPRNGCommand("\@PROG_UPTIME\@", "uptime"); | |
208 | addPRNGCommand("\@PROG_IPCS\@", "ipcs"); | |
209 | addPRNGCommand("\@PROG_TAIL\@", "tail"); | |
210 | ||
211 | print "Determining paths for PRNG commands...\n"; | |
212 | ||
213 | $paths = determinePRNGPaths(); | |
214 | ||
215 | return; | |
216 | } | |
217 | ||
218 | ### getDirectoryPaths( ) | |
219 | # | |
220 | # return an array ref containing all of the directories in which we should search | |
221 | # for our listing of executable names. | |
222 | # | |
223 | ||
224 | sub getDirectoryPaths( ) | |
225 | { | |
226 | # | |
227 | # read in the PATH environmental variable and prepend a set of 'safe' | |
228 | # directories from which to test PRNG commands. | |
229 | # | |
230 | ||
231 | $path = $ENV{PATH}; | |
232 | $path = "/bin:/usr/bin:/sbin:/usr/sbin:/etc:" . $path; | |
233 | @dirs = split(/:/, $path); | |
234 | ||
235 | # | |
236 | # sanitize each directory listed in the array. | |
237 | # | |
238 | ||
239 | @dirs = map { | |
240 | $tmp = $_; | |
241 | $tmp =~ s:/+:/:g; | |
242 | $tmp =~ s:^\s+|\s+$::g; | |
243 | $tmp; | |
244 | } @dirs; | |
245 | ||
246 | return \@dirs; | |
247 | } | |
248 | ||
249 | ### addPRNGCommand( $prng_name, $exec_name ) | |
250 | # | |
251 | # given a PRNG name and a corresponding executable name, add it to our list of | |
252 | # PRNG commands for which to find on the system. | |
253 | # | |
254 | ||
255 | sub addPRNGCommand | |
256 | { | |
257 | my($prng_name, $exec_name) = @_; | |
258 | ||
259 | prngAddNode($prng_name, $exec_name); | |
260 | } | |
261 | ||
262 | ### copyPRNGFile( ) | |
263 | # | |
264 | # read in ssh_prng_cmds.in, translate the program listings to the paths we have | |
265 | # found on the local system, and then write the output to ssh_prng_cmds. | |
266 | # | |
267 | ||
268 | sub copyPRNGFile | |
269 | { | |
270 | my($fileInput, $fileOutput); | |
271 | my($mode, $uid, $gid); | |
272 | my($data); | |
273 | ||
274 | if ( isPresent("/dev/random") && !isForced() ) | |
275 | { | |
276 | printf("/dev/random found and not forced. Not installing ssh_prng_cmds...\n"); | |
277 | return; | |
278 | } | |
279 | ||
280 | initPRNGHash(); | |
281 | ||
282 | print "Fixing paths in ssh_prng_cmds...\n"; | |
283 | ||
284 | $fileInput = "$setupdir/ssh_prng_cmds.in"; | |
285 | $fileOutput = "$sysconfdir/ssh_prng_cmds"; | |
286 | ||
287 | # | |
288 | # verify that we are prepared to work with $fileInput | |
289 | # | |
290 | ||
291 | if ( !isReadable($fileInput) ) | |
292 | { | |
293 | printf("Cannot read $fileInput... skipping.\n"); | |
294 | return; | |
295 | } | |
296 | ||
297 | # | |
298 | # verify that we are prepared to work with $fileOuput | |
299 | # | |
300 | ||
301 | if ( !prepareFileWrite($fileOutput) ) | |
302 | { | |
303 | return; | |
304 | } | |
305 | ||
306 | # | |
307 | # Grab the current mode/uid/gid for use later | |
308 | # | |
309 | ||
310 | $mode = (stat($fileInput))[2]; | |
311 | $uid = (stat($fileInput))[4]; | |
312 | $gid = (stat($fileInput))[5]; | |
313 | ||
314 | # | |
315 | # Open the files for reading and writing, and loop over the input's contents | |
316 | # | |
317 | ||
318 | $data = readFile($fileInput); | |
319 | for my $k (keys %$prngcmds) | |
320 | { | |
321 | $sub = prngGetExecPath($k); | |
322 | $data =~ s:$k:$sub:g; | |
323 | } | |
324 | writeFile($fileOutput, $data); | |
325 | ||
326 | # | |
327 | # An attempt to revert the new file back to the original file's | |
328 | # mode/uid/gid | |
329 | # | |
330 | ||
331 | chmod($mode, $fileOutput); | |
332 | chown($uid, $gid, $fileOutput); | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
337 | ### determinePRNGPaths( ) | |
338 | # | |
339 | # for every entry in the PRNG hash, seek out and find the path for the | |
340 | # corresponding executable name. | |
341 | # | |
342 | ||
343 | sub determinePRNGPaths | |
344 | { | |
345 | my(@paths, @dirs); | |
346 | my($exec_name, $exec_path); | |
347 | ||
348 | $dirs = getDirectoryPaths(); | |
349 | ||
350 | for my $k (keys %$prngcmds) | |
351 | { | |
352 | $exec_name = prngGetExecName($k); | |
353 | $exec_path = findExecutable($exec_name, $dirs); | |
354 | prngSetExecPath($k, $exec_path); | |
355 | } | |
356 | ||
357 | return; | |
358 | } | |
359 | ||
360 | ### prngAddNode( $prng_name, $exec_name ) | |
361 | # | |
362 | # add a new node to the PRNG hash | |
363 | # | |
364 | ||
365 | sub prngAddNode | |
366 | { | |
367 | my($prng_name, $exec_name) = @_; | |
368 | my($node); | |
369 | ||
370 | if (!defined($prngcmds)) | |
371 | { | |
372 | $prngcmds = {}; | |
373 | } | |
374 | ||
375 | $node = {}; | |
376 | $node->{prng} = $prng_name; | |
377 | $node->{exec} = $exec_name; | |
378 | ||
379 | $prngcmds->{$prng_name} = $node; | |
380 | } | |
381 | ||
382 | ### prngGetExecName( $key ) | |
383 | # | |
384 | # get the executable name from the prng commands hash named by $key | |
385 | # | |
386 | ||
387 | sub prngGetExecName | |
388 | { | |
389 | my($key) = @_; | |
390 | ||
391 | return $prngcmds->{$key}->{exec}; | |
392 | } | |
393 | ||
394 | ### prngGetExecPath( $key ) | |
395 | # | |
396 | # get the executable path from the prng commands hash named by $key | |
397 | # | |
398 | ||
399 | sub prngGetExecPath | |
400 | { | |
401 | my($key) = @_; | |
402 | ||
403 | return $prngcmds->{$key}->{exec_path}; | |
404 | } | |
405 | ||
406 | ### prngGetNode( $key ) | |
407 | # | |
408 | # return a reference to the node named by $key | |
409 | # | |
410 | ||
411 | sub prngGetNode | |
412 | { | |
413 | my($key) = @_; | |
414 | ||
415 | return ${$prngcmds}{$key}; | |
416 | } | |
417 | ||
418 | ### prngSetExecPath( $key, $path ) | |
419 | # | |
420 | # given a key, set the executable path in that node to $path | |
421 | # | |
422 | ||
423 | sub prngSetExecPath | |
424 | { | |
425 | my($key, $path) = @_; | |
426 | ||
427 | $prngcmds->{$key}->{exec_path} = $path; | |
428 | } | |
429 | ||
430 | ### findExecutable( $exec_name, $dirs ) | |
431 | # | |
432 | # given an executable name, test each possible path in $dirs to see if such | |
433 | # an executable exists. | |
434 | # | |
435 | ||
436 | sub findExecutable | |
437 | { | |
438 | my($exec_name, $dirs) = @_; | |
439 | ||
440 | for my $d (@$dirs) | |
441 | { | |
442 | $test = "$d/$exec_name"; | |
443 | ||
444 | if ( isExecutable($test) ) | |
445 | { | |
446 | return $test; | |
447 | } | |
448 | } | |
449 | ||
450 | return "undef"; | |
451 | } | |
452 | ||
4f3224f2 | 453 | ### copyKeyFiles( $copylist ) |
454 | # | |
455 | # given an array of keys to copy, copy both the key and its public variant into | |
456 | # the gsi-openssh configuration directory. | |
457 | # | |
458 | ||
95f536ac | 459 | sub copyKeyFiles |
e9ec5455 | 460 | { |
95f536ac | 461 | my($copylist) = @_; |
462 | my($regex, $basename); | |
e9ec5455 | 463 | |
712b003f | 464 | if (@$copylist) |
e9ec5455 | 465 | { |
712b003f | 466 | print "Copying ssh host keys...\n"; |
e9ec5455 | 467 | |
712b003f | 468 | for my $f (@$copylist) |
95f536ac | 469 | { |
712b003f | 470 | $f =~ s:/+:/:g; |
471 | ||
472 | if (length($f) > 0) | |
473 | { | |
474 | $keyfile = "$f"; | |
475 | $pubkeyfile = "$f.pub"; | |
95f536ac | 476 | |
7a7884ad | 477 | copyFile("$localsshdir/$keyfile", "$sysconfdir/$keyfile"); |
478 | copyFile("$localsshdir/$pubkeyfile", "$sysconfdir/$pubkeyfile"); | |
712b003f | 479 | } |
95f536ac | 480 | } |
e9ec5455 | 481 | } |
e9ec5455 | 482 | } |
483 | ||
7a7884ad | 484 | ### isForced( ) |
485 | # | |
486 | # return true if the user passed in the force flag. return false otherwise. | |
487 | # | |
488 | ||
489 | sub isForced | |
490 | { | |
491 | if ( defined($force) && $force ) | |
492 | { | |
493 | return 1; | |
494 | } | |
495 | else | |
496 | { | |
497 | return 0; | |
498 | } | |
499 | } | |
500 | ||
4f3224f2 | 501 | ### isReadable( $file ) |
502 | # | |
503 | # given a file, return true if that file both exists and is readable by the | |
504 | # effective user id. return false otherwise. | |
505 | # | |
506 | ||
95f536ac | 507 | sub isReadable |
1a1f62a4 | 508 | { |
95f536ac | 509 | my($file) = @_; |
1a1f62a4 | 510 | |
95f536ac | 511 | if ( ( -e $file ) && ( -r $file ) ) |
1a1f62a4 | 512 | { |
95f536ac | 513 | return 1; |
1a1f62a4 | 514 | } |
823981ba | 515 | else |
1a1f62a4 | 516 | { |
95f536ac | 517 | return 0; |
ac083f7a | 518 | } |
1a1f62a4 | 519 | } |
520 | ||
7a7884ad | 521 | ### isExecutable( $file ) |
522 | # | |
523 | # return true if $file is executable. return false otherwise. | |
524 | # | |
525 | ||
526 | sub isExecutable | |
527 | { | |
528 | my($file) = @_; | |
529 | ||
530 | if ( -x $file ) | |
531 | { | |
532 | return 1; | |
533 | } | |
534 | else | |
535 | { | |
536 | return 0; | |
537 | } | |
538 | } | |
539 | ||
540 | ### isWritable( $file ) | |
541 | # | |
542 | # given a file, return true if that file does not exist or is writable by the | |
543 | # effective user id. return false otherwise. | |
544 | # | |
545 | ||
546 | sub isWritable | |
547 | { | |
548 | my($file) = @_; | |
549 | ||
550 | if ( ( ! -e $file ) || ( -w $file ) ) | |
551 | { | |
552 | return 1; | |
553 | } | |
554 | else | |
555 | { | |
556 | return 0; | |
557 | } | |
558 | } | |
559 | ||
4f3224f2 | 560 | ### isPresent( $file ) |
561 | # | |
562 | # given a file, return true if that file exists. return false otherwise. | |
563 | # | |
564 | ||
712b003f | 565 | sub isPresent |
566 | { | |
567 | my($file) = @_; | |
568 | ||
569 | if ( -e $file ) | |
570 | { | |
571 | return 1; | |
572 | } | |
573 | else | |
574 | { | |
575 | return 0; | |
576 | } | |
577 | } | |
578 | ||
c096bf39 | 579 | ### makeConfDir( ) |
580 | # | |
581 | # make the gsi-openssh configuration directory if it doesn't already exist. | |
582 | # | |
583 | ||
584 | sub makeConfDir | |
585 | { | |
586 | if ( isPresent($sysconfdir) ) | |
587 | { | |
588 | if ( -d $sysconfdir ) | |
589 | { | |
590 | return; | |
591 | } | |
592 | ||
593 | die("${sysconfdir} already exists and is not a directory!\n"); | |
594 | } | |
595 | ||
596 | print "Could not find ${sysconfdir} directory... creating.\n"; | |
597 | action("mkdir -p $sysconfdir"); | |
598 | ||
599 | return; | |
600 | } | |
601 | ||
4f3224f2 | 602 | ### determineKeys( ) |
603 | # | |
604 | # based on a set of key types, triage them to determine if for each key type, that | |
605 | # key type should be copied from the main ssh configuration directory, or if it | |
606 | # should be generated using ssh-keygen. | |
607 | # | |
608 | ||
95f536ac | 609 | sub determineKeys |
823981ba | 610 | { |
95f536ac | 611 | my($keyhash, $keylist); |
612 | my($count); | |
823981ba | 613 | |
712b003f | 614 | # |
615 | # initialize our variables | |
616 | # | |
617 | ||
95f536ac | 618 | $count = 0; |
823981ba | 619 | |
95f536ac | 620 | $keyhash = {}; |
621 | $keyhash->{gen} = []; # a list of keytypes to generate | |
622 | $keyhash->{copy} = []; # a list of files to copy from the | |
712b003f | 623 | |
95f536ac | 624 | $genlist = $keyhash->{gen}; |
625 | $copylist = $keyhash->{copy}; | |
e9ec5455 | 626 | |
712b003f | 627 | # |
628 | # loop over our keytypes and determine what we need to do for each of them | |
629 | # | |
630 | ||
95f536ac | 631 | for my $keytype (keys %$keyfiles) |
1a1f62a4 | 632 | { |
95f536ac | 633 | $basekeyfile = $keyfiles->{$keytype}; |
1a1f62a4 | 634 | |
712b003f | 635 | # |
636 | # if the key's are already present, we don't need to bother with this rigamarole | |
637 | # | |
638 | ||
639 | $gkeyfile = "$sysconfdir/$basekeyfile"; | |
640 | $gpubkeyfile = "$sysconfdir/$basekeyfile.pub"; | |
641 | ||
642 | if ( isPresent($gkeyfile) && isPresent($gpubkeyfile) ) | |
95f536ac | 643 | { |
7a7884ad | 644 | if ( isForced() ) |
645 | { | |
646 | if ( isWritable("$sysconfdir/$basekeyfile") && isWritable("$sysconfdir/$basekeyfile.pub") ) | |
647 | { | |
648 | action("rm $sysconfdir/$basekeyfile"); | |
649 | action("rm $sysconfdir/$basekeyfile.pub"); | |
650 | } | |
651 | else | |
652 | { | |
653 | next; | |
654 | } | |
655 | } | |
95f536ac | 656 | } |
1a1f62a4 | 657 | |
712b003f | 658 | # |
659 | # if we can find a copy of the keys in /etc/ssh, we'll copy them to the user's | |
660 | # globus location | |
661 | # | |
662 | ||
663 | $mainkeyfile = "$localsshdir/$basekeyfile"; | |
664 | $mainpubkeyfile = "$localsshdir/$basekeyfile.pub"; | |
665 | ||
666 | if ( isReadable($mainkeyfile) && isReadable($mainpubkeyfile) ) | |
95f536ac | 667 | { |
712b003f | 668 | push(@$copylist, $basekeyfile); |
95f536ac | 669 | $count++; |
712b003f | 670 | next; |
95f536ac | 671 | } |
712b003f | 672 | |
673 | # | |
674 | # otherwise, we need to generate the key | |
675 | # | |
676 | ||
677 | push(@$genlist, $keytype); | |
678 | $count++; | |
1a1f62a4 | 679 | } |
680 | ||
95f536ac | 681 | return $keyhash; |
682 | } | |
683 | ||
4f3224f2 | 684 | ### runKeyGen( $gen_keys ) |
685 | # | |
686 | # given a set of key types, generate private and public keys for that key type and | |
687 | # place them in the gsi-openssh configuration directory. | |
688 | # | |
689 | ||
95f536ac | 690 | sub runKeyGen |
691 | { | |
692 | my($gen_keys) = @_; | |
ce935927 | 693 | my $keygen = "$bindir/ssh-keygen"; |
95f536ac | 694 | |
ce935927 | 695 | if (@$gen_keys && -x $keygen) |
1a1f62a4 | 696 | { |
712b003f | 697 | print "Generating ssh host keys...\n"; |
698 | ||
699 | for my $k (@$gen_keys) | |
700 | { | |
701 | $keyfile = $keyfiles->{$k}; | |
95f536ac | 702 | |
7a7884ad | 703 | if ( !isPresent("$sysconfdir/$keyfile") ) |
704 | { | |
705 | action("$bindir/ssh-keygen -t $k -f $sysconfdir/$keyfile -N \"\""); | |
706 | } | |
712b003f | 707 | } |
1a1f62a4 | 708 | } |
709 | ||
710 | return 0; | |
711 | } | |
712 | ||
7a7884ad | 713 | ### copySSHDConfigFile( ) |
5b105785 | 714 | # |
715 | # this subroutine 'edits' the paths in sshd_config to suit them to the current environment | |
716 | # in which the setup script is being run. | |
717 | # | |
718 | ||
7a7884ad | 719 | sub copySSHDConfigFile |
20d3226a | 720 | { |
5b105785 | 721 | my($fileInput, $fileOutput); |
722 | my($mode, $uid, $gid); | |
723 | my($line, $newline); | |
823981ba | 724 | |
5b105785 | 725 | print "Fixing paths in sshd_config...\n"; |
95f536ac | 726 | |
5b105785 | 727 | $fileInput = "$setupdir/sshd_config.in"; |
728 | $fileOutput = "$sysconfdir/sshd_config"; | |
95f536ac | 729 | |
7a7884ad | 730 | # |
731 | # verify that we are prepared to work with $fileInput | |
732 | # | |
733 | ||
734 | if ( !isReadable($fileInput) ) | |
95f536ac | 735 | { |
7a7884ad | 736 | printf("Cannot read $fileInput... skipping.\n"); |
737 | return; | |
5b105785 | 738 | } |
739 | ||
7a7884ad | 740 | # |
741 | # verify that we are prepared to work with $fileOuput | |
742 | # | |
743 | ||
744 | if ( !prepareFileWrite($fileOutput) ) | |
5b105785 | 745 | { |
7a7884ad | 746 | return; |
95f536ac | 747 | } |
e9ec5455 | 748 | |
20d3226a | 749 | # |
95f536ac | 750 | # Grab the current mode/uid/gid for use later |
20d3226a | 751 | # |
752 | ||
5b105785 | 753 | $mode = (stat($fileInput))[2]; |
754 | $uid = (stat($fileInput))[4]; | |
755 | $gid = (stat($fileInput))[5]; | |
20d3226a | 756 | |
20d3226a | 757 | # |
5b105785 | 758 | # Open the files for reading and writing, and loop over the input's contents |
20d3226a | 759 | # |
760 | ||
5b105785 | 761 | open(IN, "<$fileInput") || die ("$0: input file $fileInput missing!\n"); |
762 | open(OUT, ">$fileOutput") || die ("$0: unable to open output file $fileOutput!\n"); | |
20d3226a | 763 | |
95f536ac | 764 | while (<IN>) |
765 | { | |
6193a4af | 766 | # |
767 | # sorry for the whacky regex, but i need to verify a whole line | |
768 | # | |
769 | ||
eb4172f6 | 770 | $line = $_; |
771 | if ( $line =~ /^\s*Subsystem\s+sftp\s+\S+\s*$/ ) | |
e9ec5455 | 772 | { |
7a7884ad | 773 | $line = "Subsystem\tsftp\t$gpath/libexec/sftp-server\n"; |
774 | $line =~ s:/+:/:g; | |
7c96a399 | 775 | } |
eb4172f6 | 776 | elsif ( $line =~ /^\s*PidFile.*$/ ) |
777 | { | |
7a7884ad | 778 | $line = "PidFile\t$gpath/var/sshd.pid\n"; |
779 | $line =~ s:/+:/:g; | |
eb4172f6 | 780 | } |
781 | else | |
782 | { | |
7a7884ad | 783 | # do nothing |
eb4172f6 | 784 | } |
785 | ||
7a7884ad | 786 | print OUT "$line"; |
95f536ac | 787 | } # while <IN> |
7c96a399 | 788 | |
95f536ac | 789 | close(OUT); |
790 | close(IN); | |
7c96a399 | 791 | |
95f536ac | 792 | # |
793 | # An attempt to revert the new file back to the original file's | |
794 | # mode/uid/gid | |
795 | # | |
7e12c9a7 | 796 | |
5b105785 | 797 | chmod($mode, $fileOutput); |
798 | chown($uid, $gid, $fileOutput); | |
20d3226a | 799 | |
800 | return 0; | |
801 | } | |
802 | ||
7a7884ad | 803 | ### prepareFileWrite( $file ) |
804 | # | |
805 | # test $file to prepare for writing to it. | |
806 | # | |
807 | ||
808 | sub prepareFileWrite | |
809 | { | |
810 | my($file) = @_; | |
811 | ||
812 | if ( isPresent($file) ) | |
813 | { | |
814 | printf("$file already exists... "); | |
815 | ||
816 | if ( isForced() ) | |
817 | { | |
818 | if ( isWritable($file) ) | |
819 | { | |
820 | printf("removing.\n"); | |
821 | action("rm $file"); | |
822 | return 1; | |
823 | } | |
824 | else | |
825 | { | |
826 | printf("not writable -- skipping.\n"); | |
827 | return 0; | |
828 | } | |
829 | } | |
830 | else | |
831 | { | |
832 | printf("skipping.\n"); | |
833 | return 0; | |
834 | } | |
835 | } | |
836 | ||
837 | return 1; | |
838 | } | |
839 | ||
5b105785 | 840 | ### copyConfigFiles( ) |
841 | # | |
842 | # subroutine that copies some extra config files to their proper location in | |
843 | # $GLOBUS_LOCATION/etc/ssh. | |
844 | # | |
845 | ||
846 | sub copyConfigFiles | |
847 | { | |
7a7884ad | 848 | # |
849 | # copy the sshd_config file into the ssh configuration directory and alter | |
850 | # the paths in the file. | |
851 | # | |
852 | ||
853 | copySSHDConfigFile(); | |
854 | ||
855 | # | |
856 | # do straight copies of the ssh_config and moduli files. | |
857 | # | |
858 | ||
859 | printf("Copying ssh_config and moduli to their proper location...\n"); | |
860 | ||
861 | copyFile("$setupdir/ssh_config", "$sysconfdir/ssh_config"); | |
862 | copyFile("$setupdir/moduli", "$sysconfdir/moduli"); | |
5b105785 | 863 | |
7a7884ad | 864 | # |
865 | # copy and alter the SXXsshd script. | |
866 | # | |
867 | ||
868 | copySXXScript("$setupdir/SXXsshd.in", "$sbindir/SXXsshd"); | |
5b105785 | 869 | } |
870 | ||
7a7884ad | 871 | ### copyFile( $src, $dest ) |
4f3224f2 | 872 | # |
7a7884ad | 873 | # copy the file pointed to by $src to the location specified by $dest. in the |
874 | # process observe the rules regarding when the '-force' flag was passed to us. | |
4f3224f2 | 875 | # |
876 | ||
7a7884ad | 877 | sub copyFile |
a26c150d | 878 | { |
7a7884ad | 879 | my($src, $dest) = @_; |
d58b3a33 | 880 | |
7a7884ad | 881 | if ( !isReadable($src) ) |
20bb6dc8 | 882 | { |
7a7884ad | 883 | printf("$src is not readable... not creating $dest.\n"); |
884 | return; | |
20bb6dc8 | 885 | } |
7a7884ad | 886 | |
887 | if ( !prepareFileWrite($dest) ) | |
888 | { | |
889 | return; | |
890 | } | |
891 | ||
892 | action("cp $src $dest"); | |
d58b3a33 | 893 | } |
894 | ||
7a7884ad | 895 | ### copySXXScript( $in, $out ) |
4f3224f2 | 896 | # |
7a7884ad | 897 | # parse the input file, substituting in place the value of GLOBUS_LOCATION, and |
898 | # write the result to the output file. | |
4f3224f2 | 899 | # |
900 | ||
7a7884ad | 901 | sub copySXXScript |
d58b3a33 | 902 | { |
7a7884ad | 903 | my($in, $out) = @_; |
904 | ||
905 | if ( !isReadable($in) ) | |
906 | { | |
907 | printf("$in is not readable... not creating $out.\n"); | |
908 | return; | |
909 | } | |
910 | ||
911 | if ( !prepareFileWrite($out) ) | |
912 | { | |
913 | return; | |
914 | } | |
915 | ||
916 | $data = readFile($in); | |
917 | $data =~ s|\@GLOBUS_LOCATION\@|$gpath|g; | |
918 | writeFile($out, $data); | |
919 | action("chmod 755 $out"); | |
a26c150d | 920 | } |
921 | ||
922 | ### readFile( $filename ) | |
923 | # | |
924 | # reads and returns $filename's contents | |
925 | # | |
926 | ||
927 | sub readFile | |
928 | { | |
7a7884ad | 929 | my($filename) = @_; |
930 | my($data); | |
a26c150d | 931 | |
7a7884ad | 932 | open(IN, "$filename") || die "Can't open '$filename': $!"; |
a26c150d | 933 | $/ = undef; |
934 | $data = <IN>; | |
935 | $/ = "\n"; | |
936 | close(IN); | |
937 | ||
938 | return $data; | |
939 | } | |
940 | ||
941 | ### writeFile( $filename, $fileinput ) | |
942 | # | |
943 | # create the inputs to the ssl program at $filename, appending the common name to the | |
944 | # stream in the process | |
945 | # | |
946 | ||
947 | sub writeFile | |
948 | { | |
7a7884ad | 949 | my($filename, $fileinput) = @_; |
a26c150d | 950 | |
951 | # | |
952 | # test for a valid $filename | |
953 | # | |
954 | ||
955 | if ( !defined($filename) || (length($filename) lt 1) ) | |
956 | { | |
957 | die "Filename is undefined"; | |
958 | } | |
959 | ||
7a7884ad | 960 | # |
961 | # verify that we are prepared to work with $filename | |
962 | # | |
963 | ||
964 | if ( !prepareFileWrite($filename) ) | |
a26c150d | 965 | { |
7a7884ad | 966 | return; |
a26c150d | 967 | } |
968 | ||
969 | # | |
970 | # write the output to $filename | |
971 | # | |
972 | ||
973 | open(OUT, ">$filename"); | |
974 | print OUT "$fileinput"; | |
975 | close(OUT); | |
976 | } | |
977 | ||
7a7884ad | 978 | ### action( $command ) |
ac083f7a | 979 | # |
7a7884ad | 980 | # run $command within a proper system() command. |
ac083f7a | 981 | # |
982 | ||
983 | sub action | |
984 | { | |
7a7884ad | 985 | my($command) = @_; |
ac083f7a | 986 | |
987 | printf "$command\n"; | |
988 | ||
8b73e3d0 | 989 | my $result = system("LD_LIBRARY_PATH=\"$gpath/lib:\$LD_LIBRARY_PATH\"; $command 2>&1"); |
ac083f7a | 990 | |
991 | if (($result or $?) and $command !~ m!patch!) | |
992 | { | |
993 | die "ERROR: Unable to execute command: $!\n"; | |
994 | } | |
995 | } | |
996 | ||
7a7884ad | 997 | ### query_boolean( $query_text, $default ) |
998 | # | |
999 | # query the user with a string, and expect a response. If the user hits | |
1000 | # 'enter' instead of entering an input, then accept the default response. | |
1001 | # | |
1002 | ||
ac083f7a | 1003 | sub query_boolean |
1004 | { | |
7a7884ad | 1005 | my($query_text, $default) = @_; |
1006 | my($nondefault, $foo, $bar); | |
ac083f7a | 1007 | |
1008 | # | |
1009 | # Set $nondefault to the boolean opposite of $default. | |
1010 | # | |
1011 | ||
1012 | if ($default eq "n") | |
1013 | { | |
1014 | $nondefault = "y"; | |
1015 | } | |
1016 | else | |
1017 | { | |
1018 | $nondefault = "n"; | |
1019 | } | |
1020 | ||
1021 | print "${query_text} "; | |
1022 | print "[$default] "; | |
1023 | ||
e9ec5455 | 1024 | $foo = <STDIN>; |
1025 | ($bar) = split //, $foo; | |
1026 | ||
e9d69a89 | 1027 | if ( grep(/\s/, $bar) ) |
ac083f7a | 1028 | { |
e9d69a89 | 1029 | # this is debatable. all whitespace means 'default' |
1030 | ||
1031 | $bar = $default; | |
1032 | } | |
1033 | elsif ($bar ne $default) | |
1034 | { | |
1035 | # everything else means 'nondefault'. | |
1036 | ||
1037 | $bar = $nondefault; | |
1038 | } | |
1039 | else | |
1040 | { | |
1041 | # extraneous step. to get here, $bar should be eq to $default anyway. | |
1042 | ||
e9ec5455 | 1043 | $bar = $default; |
ac083f7a | 1044 | } |
1045 | ||
e9ec5455 | 1046 | return $bar; |
ac083f7a | 1047 | } |
c096bf39 | 1048 | |
1049 | ### absolutePath( $file ) | |
1050 | # | |
1051 | # converts a given pathname into a canonical path using the abs_path function. | |
1052 | # | |
1053 | ||
1054 | sub absolutePath | |
1055 | { | |
1056 | my($file) = @_; | |
1057 | my $home = $ENV{'HOME'}; | |
1058 | $file =~ s!~!$home!; | |
1059 | my $startd = cwd(); | |
1060 | $file =~ s!^\./!$startd/!; | |
1061 | $file = "$startd/$file" if $file !~ m!^\s*/!; | |
1062 | $file = abs_path($file); | |
1063 | return $file; | |
1064 | } |