File: serv-args.def

package info (click to toggle)
gnutls28 3.6.7-4
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 67,368 kB
  • sloc: ansic: 295,691; asm: 70,637; sh: 15,067; makefile: 6,288; yacc: 1,840; lisp: 1,371; cpp: 1,358; perl: 1,030; sed: 16
file content (467 lines) | stat: -rw-r--r-- 12,821 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
AutoGen Definitions options;
prog-name     = gnutls-serv;
prog-title    = "GnuTLS server";
prog-desc     = "Simple server program to act as an HTTPS or TLS echo service.";
short-usage   = "Usage: gnutls-serv [options]\ngnutls-serv --help for usage instructions.\n";
explain       = "";
detail        = "Server program that listens to incoming TLS connections.";

#include args-std.def

flag = {
    name      = sni-hostname;
    descrip   = "Server's hostname for server name extension";
    arg-type  = string;
    doc      = "Server name of type host_name that the server will recognise as its own. If the server receives client hello with different name, it will send a warning-level unrecognized_name alert.";
};

flag = {
    name      = sni-hostname-fatal;
    descrip   = "Send fatal alert on sni-hostname mismatch";
    doc      = "";
};

flag = {
    name      = alpn;
    arg-type  = string;
    descrip   = "Specify ALPN protocol to be enabled by the server";
    doc      = "Specify the (textual) ALPN protocol for the server to use.";
    stack-arg;
    max       = NOLIMIT;
};

flag = {
    name      = alpn-fatal;
    descrip   = "Send fatal alert on non-matching ALPN name";
    doc      = "";
};

flag = {
    name      = noticket;
    descrip   = "Don't accept session tickets";
    doc      = "";
};

flag = {
    name      = earlydata;
    descrip   = "Accept early data";
    doc      = "";
};

flag = {
    name      = maxearlydata;
    arg-type  = number;
    arg-range = "1->4294967295";
    descrip   = "The maximum early data size to accept";
    doc      = "";
};

flag = {
    name      = nocookie;
    descrip   = "Don't require cookie on DTLS sessions";
    doc      = "";
};

flag = {
    name      = generate;
    value     = g;
    descrip   = "Generate Diffie-Hellman parameters";
    doc      = "";
};

flag = {
    name      = quiet;
    value     = q;
    descrip   = "Suppress some messages";
    doc      = "";
};

flag = {
    name      = nodb;
    descrip   = "Do not use a resumption database";
    doc      = "";
};

flag = {
    name      = http;
    descrip   = "Act as an HTTP server";
    doc      = "";
};

flag = {
    name      = echo;
    descrip   = "Act as an Echo server";
    doc      = "";
};

flag = {
    name      = udp;
    value     = u;
    descrip   = "Use DTLS (datagram TLS) over UDP";
    doc      = "";
};

flag = {
    name      = mtu;
    arg-type  = number;
    arg-range = "0->17000";
    descrip   = "Set MTU for datagram TLS";
    doc      = "";
};

flag = {
    name      = srtp_profiles;
    arg-type  = string;
    descrip   = "Offer SRTP profiles";
    doc       = "";
};

flag = {
    name      = disable-client-cert;
    value     = a;
    descrip   = "Do not request a client certificate";
    doc      = "";
    flags-cant = require-client-cert;
};

flag = {
    name      = require-client-cert;
    value     = r;
    descrip   = "Require a client certificate";
    doc      = "This option before 3.6.0 used to imply --verify-client-cert.
Since 3.6.0 it will no longer verify the certificate by default.";
};

flag = {
    name      = verify-client-cert;
    disabled;
    descrip   = "If a client certificate is sent then verify it.";
    doc      = "Do not require, but if a client certificate is sent then verify it and close the connection if invalid.";
};

flag = {
    name      = heartbeat;
    value     = b;
    descrip   = "Activate heartbeat support";
    doc      = "Regularly ping client via heartbeat extension messages";
};

flag = {
    name      = x509fmtder;
    descrip   = "Use DER format for certificates to read from";
    doc      = "";
};

flag = {
    name      = priority;
    arg-type  = string;
    descrip   = "Priorities string";
    doc      = "TLS algorithms and protocols to enable. You can
use predefined sets of ciphersuites such as PERFORMANCE,
NORMAL, SECURE128, SECURE256. The default is NORMAL.

Check  the  GnuTLS  manual  on  section  ``Priority strings'' for more
information on allowed keywords";
};

flag = {
    name      = dhparams;
    arg-type  = file;
    file-exists = yes;
    descrip   = "DH params file to use";
    doc      = "";
};

flag = {
    name      = x509cafile;
    arg-type  = string;
    descrip   = "Certificate file or PKCS #11 URL to use";
    doc      = "";
};

flag = {
    name      = x509crlfile;
    arg-type  = file;
    file-exists = yes;
    descrip   = "CRL file to use";
    doc      = "";
};

flag = {
    name      = pgpkeyfile;
    arg-type  = file;
    file-exists = yes;
    descrip   = "PGP Key file to use";
    doc      = "";
    deprecated;
};


flag = {
    name      = x509keyfile;
    arg-type  = string;
    descrip   = "X.509 key file or PKCS #11 URL to use";
    doc      = "Specify the private key file or URI to use; it must correspond to
the certificate specified in --x509certfile. Multiple keys and certificates
can be specified with this option and in that case each occurrence of keyfile
must be followed by the corresponding x509certfile or vice-versa.";
    stack-arg;
    max       = NOLIMIT;
};

flag = {
    name      = x509certfile;
    arg-type  = string;
    descrip   = "X.509 Certificate file or PKCS #11 URL to use";
    doc      = "Specify the certificate file or URI to use; it must correspond to
the key specified in --x509keyfile. Multiple keys and certificates
can be specified with this option and in that case each occurrence of keyfile
must be followed by the corresponding x509certfile or vice-versa.";
    stack-arg;
    max       = NOLIMIT;
};

flag = {
    name      = x509dsakeyfile;
    aliases   = x509keyfile;
    descrip   = "Alternative X.509 key file or PKCS #11 URL to use";
    deprecated;
};

flag = {
    name      = x509dsacertfile;
    aliases   = x509certfile;
    descrip   = "Alternative X.509 Certificate file or PKCS #11 URL to use";
    deprecated;
};

flag = {
    name      = x509ecckeyfile;
    aliases   = x509keyfile;
    descrip   = "Alternative X.509 key file or PKCS #11 URL to use";
    deprecated;
};

flag = {
    name      = x509ecccertfile;
    aliases   = x509certfile;
    descrip   = "Alternative X.509 Certificate file or PKCS #11 URL to use";
    deprecated;
};

flag = {
    name      = srppasswd;
    arg-type  = file;
    file-exists = yes;
    descrip   = "SRP password file to use";
    doc      = "";
};

flag = {
    name      = srppasswdconf;
    arg-type  = file;
    file-exists = yes;
    descrip   = "SRP password configuration file to use";
    doc      = "";
};

flag = {
    name      = pskpasswd;
    arg-type  = file;
    file-exists = yes;
    descrip   = "PSK password file to use";
    doc      = "";
};

flag = {
    name      = pskhint;
    arg-type  = string;
    descrip   = "PSK identity hint to use";
    doc      = "";
};

flag = {
    name      = ocsp-response;
    arg-type  = string;
    descrip   = "The OCSP response to send to client";
    doc      = "If the client requested an OCSP response, return data from this file to the client.";
    stack-arg;
    max       = NOLIMIT;
};

flag = {
    name      = ignore-ocsp-response-errors;
    descrip   = "Ignore any errors when setting the OCSP response";
    doc      = "That option instructs gnutls to not attempt to match the provided OCSP responses with the certificates.";
};

flag = {
    name      = port;
    value     = p;
    arg-type  = number;
    descrip   = "The port to connect to";
    doc      = "";
};

flag = {
    name      = list;
    value     = l;
    descrip   = "Print a list of the supported algorithms and modes";
    doc      = "Print a list of the supported algorithms and modes. If a priority string is given then only the enabled ciphersuites are shown.";
};

flag = {
    name      = provider;
    arg-type  = file;
    file-exists = yes;
    descrip   = "Specify the PKCS #11 provider library";
    doc      = "This will override the default options in /etc/gnutls/pkcs11.conf";
};

doc-section = {
  ds-type   = 'SEE ALSO'; // or anything else
  ds-format = 'texi';      // or texi or mdoc format
  ds-text   = <<-_EOText_
gnutls-cli-debug(1), gnutls-cli(1)
_EOText_;
};

doc-section = {
  ds-type = 'EXAMPLES';
  ds-format = 'texi';
  ds-text   = <<-_EOF_
Running your own TLS server based on GnuTLS can be useful when
debugging clients and/or GnuTLS itself.  This section describes how to
use @code{gnutls-serv} as a simple HTTPS server.

The most basic server can be started as:

@example
gnutls-serv --http --priority "NORMAL:+ANON-ECDH:+ANON-DH"
@end example

It will only support anonymous ciphersuites, which many TLS clients
refuse to use.

The next step is to add support for X.509.  First we generate a CA:

@example
$ certtool --generate-privkey > x509-ca-key.pem
$ echo 'cn = GnuTLS test CA' > ca.tmpl
$ echo 'ca' >> ca.tmpl
$ echo 'cert_signing_key' >> ca.tmpl
$ certtool --generate-self-signed --load-privkey x509-ca-key.pem \
  --template ca.tmpl --outfile x509-ca.pem
@end example

Then generate a server certificate.  Remember to change the dns_name
value to the name of your server host, or skip that command to avoid
the field.

@example
$ certtool --generate-privkey > x509-server-key.pem
$ echo 'organization = GnuTLS test server' > server.tmpl
$ echo 'cn = test.gnutls.org' >> server.tmpl
$ echo 'tls_www_server' >> server.tmpl
$ echo 'encryption_key' >> server.tmpl
$ echo 'signing_key' >> server.tmpl
$ echo 'dns_name = test.gnutls.org' >> server.tmpl
$ certtool --generate-certificate --load-privkey x509-server-key.pem \
  --load-ca-certificate x509-ca.pem --load-ca-privkey x509-ca-key.pem \
  --template server.tmpl --outfile x509-server.pem
@end example

For use in the client, you may want to generate a client certificate
as well.

@example
$ certtool --generate-privkey > x509-client-key.pem
$ echo 'cn = GnuTLS test client' > client.tmpl
$ echo 'tls_www_client' >> client.tmpl
$ echo 'encryption_key' >> client.tmpl
$ echo 'signing_key' >> client.tmpl
$ certtool --generate-certificate --load-privkey x509-client-key.pem \
  --load-ca-certificate x509-ca.pem --load-ca-privkey x509-ca-key.pem \
  --template client.tmpl --outfile x509-client.pem
@end example

To be able to import the client key/certificate into some
applications, you will need to convert them into a PKCS#12 structure.
This also encrypts the security sensitive key with a password.

@example
$ certtool --to-p12 --load-ca-certificate x509-ca.pem \
  --load-privkey x509-client-key.pem --load-certificate x509-client.pem \
  --outder --outfile x509-client.p12
@end example

For icing, we'll create a proxy certificate for the client too.

@example
$ certtool --generate-privkey > x509-proxy-key.pem
$ echo 'cn = GnuTLS test client proxy' > proxy.tmpl
$ certtool --generate-proxy --load-privkey x509-proxy-key.pem \
  --load-ca-certificate x509-client.pem --load-ca-privkey x509-client-key.pem \
  --load-certificate x509-client.pem --template proxy.tmpl \
  --outfile x509-proxy.pem
@end example

Then start the server again:

@example
$ gnutls-serv --http \
            --x509cafile x509-ca.pem \
            --x509keyfile x509-server-key.pem \
            --x509certfile x509-server.pem
@end example

Try connecting to the server using your web browser.  Note that the
server listens to port 5556 by default.

While you are at it, to allow connections using ECDSA, you can also
create a ECDSA key and certificate for the server.  These credentials
will be used in the final example below.

@example
$ certtool --generate-privkey --ecdsa > x509-server-key-ecc.pem
$ certtool --generate-certificate --load-privkey x509-server-key-ecc.pem \
  --load-ca-certificate x509-ca.pem --load-ca-privkey x509-ca-key.pem \
  --template server.tmpl --outfile x509-server-ecc.pem
@end example


The next step is to add support for SRP authentication. This requires
an SRP password file created with @code{srptool}.
To start the server with SRP support:

@example
gnutls-serv --http --priority NORMAL:+SRP-RSA:+SRP \
            --srppasswdconf srp-tpasswd.conf \
            --srppasswd srp-passwd.txt
@end example

Let's also start a server with support for PSK. This would require
a password file created with @code{psktool}.

@example
gnutls-serv --http --priority NORMAL:+ECDHE-PSK:+PSK \
            --pskpasswd psk-passwd.txt
@end example

Finally, we start the server with all the earlier parameters and you
get this command:

@example
gnutls-serv --http --priority NORMAL:+PSK:+SRP \
            --x509cafile x509-ca.pem \
            --x509keyfile x509-server-key.pem \
            --x509certfile x509-server.pem \
            --x509keyfile x509-server-key-ecc.pem \
            --x509certfile x509-server-ecc.pem \
            --srppasswdconf srp-tpasswd.conf \
            --srppasswd srp-passwd.txt \
            --pskpasswd psk-passwd.txt
@end example
_EOF_;
};