xref: /freebsd/contrib/wpa/hs20/client/osu_client.c (revision 6549718b70f0e660a15685369afb4f9caf2215ce)
1 /*
2  * Hotspot 2.0 OSU client
3  * Copyright (c) 2012-2014, Qualcomm Atheros, Inc.
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8 
9 #include "includes.h"
10 #include <time.h>
11 #include <sys/stat.h>
12 #ifdef ANDROID
13 #include "private/android_filesystem_config.h"
14 #endif /* ANDROID */
15 
16 #include "common.h"
17 #include "utils/browser.h"
18 #include "utils/base64.h"
19 #include "utils/xml-utils.h"
20 #include "utils/http-utils.h"
21 #include "common/wpa_ctrl.h"
22 #include "common/wpa_helpers.h"
23 #include "eap_common/eap_defs.h"
24 #include "crypto/crypto.h"
25 #include "crypto/sha256.h"
26 #include "osu_client.h"
27 
28 const char *spp_xsd_fname = "spp.xsd";
29 
30 
31 void write_result(struct hs20_osu_client *ctx, const char *fmt, ...)
32 {
33 	va_list ap;
34 	FILE *f;
35 	char buf[500];
36 
37 	va_start(ap, fmt);
38 	vsnprintf(buf, sizeof(buf), fmt, ap);
39 	va_end(ap);
40 	write_summary(ctx, "%s", buf);
41 
42 	if (!ctx->result_file)
43 		return;
44 
45 	f = fopen(ctx->result_file, "w");
46 	if (f == NULL)
47 		return;
48 
49 	va_start(ap, fmt);
50 	vfprintf(f, fmt, ap);
51 	va_end(ap);
52 	fprintf(f, "\n");
53 	fclose(f);
54 }
55 
56 
57 void write_summary(struct hs20_osu_client *ctx, const char *fmt, ...)
58 {
59 	va_list ap;
60 	FILE *f;
61 
62 	if (!ctx->summary_file)
63 		return;
64 
65 	f = fopen(ctx->summary_file, "a");
66 	if (f == NULL)
67 		return;
68 
69 	va_start(ap, fmt);
70 	vfprintf(f, fmt, ap);
71 	va_end(ap);
72 	fprintf(f, "\n");
73 	fclose(f);
74 }
75 
76 
77 void debug_dump_node(struct hs20_osu_client *ctx, const char *title,
78 		     xml_node_t *node)
79 {
80 	char *str = xml_node_to_str(ctx->xml, node);
81 	wpa_printf(MSG_DEBUG, "[hs20] %s: '%s'", title, str);
82 	free(str);
83 }
84 
85 
86 static int valid_fqdn(const char *fqdn)
87 {
88 	const char *pos;
89 
90 	/* TODO: could make this more complete.. */
91 	if (strchr(fqdn, '.') == 0 || strlen(fqdn) > 255)
92 		return 0;
93 	for (pos = fqdn; *pos; pos++) {
94 		if (*pos >= 'a' && *pos <= 'z')
95 			continue;
96 		if (*pos >= 'A' && *pos <= 'Z')
97 			continue;
98 		if (*pos >= '0' && *pos <= '9')
99 			continue;
100 		if (*pos == '-' || *pos == '.' || *pos == '_')
101 			continue;
102 		return 0;
103 	}
104 	return 1;
105 }
106 
107 
108 static int android_update_permission(const char *path, mode_t mode)
109 {
110 #ifdef ANDROID
111 	/* we need to change file/folder permission for Android */
112 
113 	if (!path) {
114 		wpa_printf(MSG_ERROR, "file path null");
115 		return -1;
116 	}
117 
118 	/* Allow processes running with Group ID as AID_WIFI,
119 	 * to read files from SP, SP/<fqdn>, Cert and osu-info directories */
120 	if (lchown(path, -1, AID_WIFI)) {
121 		wpa_printf(MSG_INFO, "CTRL: Could not lchown directory: %s",
122 			   strerror(errno));
123 		return -1;
124 	}
125 
126 	if (chmod(path, mode) < 0) {
127 		wpa_printf(MSG_INFO, "CTRL: Could not chmod directory: %s",
128 			   strerror(errno));
129 		return -1;
130 	}
131 #endif  /* ANDROID */
132 
133 	return 0;
134 }
135 
136 
137 int osu_get_certificate(struct hs20_osu_client *ctx, xml_node_t *getcert)
138 {
139 	xml_node_t *node;
140 	char *url, *user = NULL, *pw = NULL;
141 	char *proto;
142 	int ret = -1;
143 
144 	proto = xml_node_get_attr_value(ctx->xml, getcert,
145 					"enrollmentProtocol");
146 	if (!proto)
147 		return -1;
148 	wpa_printf(MSG_INFO, "getCertificate - enrollmentProtocol=%s", proto);
149 	write_summary(ctx, "getCertificate - enrollmentProtocol=%s", proto);
150 	if (os_strcasecmp(proto, "EST") != 0) {
151 		wpa_printf(MSG_INFO, "Unsupported enrollmentProtocol");
152 		xml_node_get_attr_value_free(ctx->xml, proto);
153 		return -1;
154 	}
155 	xml_node_get_attr_value_free(ctx->xml, proto);
156 
157 	node = get_node(ctx->xml, getcert, "enrollmentServerURI");
158 	if (node == NULL) {
159 		wpa_printf(MSG_INFO, "Could not find enrollmentServerURI node");
160 		xml_node_get_attr_value_free(ctx->xml, proto);
161 		return -1;
162 	}
163 	url = xml_node_get_text(ctx->xml, node);
164 	if (url == NULL) {
165 		wpa_printf(MSG_INFO, "Could not get URL text");
166 		return -1;
167 	}
168 	wpa_printf(MSG_INFO, "enrollmentServerURI: %s", url);
169 	write_summary(ctx, "enrollmentServerURI: %s", url);
170 
171 	node = get_node(ctx->xml, getcert, "estUserID");
172 	if (node == NULL && !ctx->client_cert_present) {
173 		wpa_printf(MSG_INFO, "Could not find estUserID node");
174 		goto fail;
175 	}
176 	if (node) {
177 		user = xml_node_get_text(ctx->xml, node);
178 		if (user == NULL) {
179 			wpa_printf(MSG_INFO, "Could not get estUserID text");
180 			goto fail;
181 		}
182 		wpa_printf(MSG_INFO, "estUserID: %s", user);
183 		write_summary(ctx, "estUserID: %s", user);
184 	}
185 
186 	node = get_node(ctx->xml, getcert, "estPassword");
187 	if (node == NULL && !ctx->client_cert_present) {
188 		wpa_printf(MSG_INFO, "Could not find estPassword node");
189 		goto fail;
190 	}
191 	if (node) {
192 		pw = xml_node_get_base64_text(ctx->xml, node, NULL);
193 		if (pw == NULL) {
194 			wpa_printf(MSG_INFO, "Could not get estPassword text");
195 			goto fail;
196 		}
197 		wpa_printf(MSG_INFO, "estPassword: %s", pw);
198 	}
199 
200 	mkdir("Cert", S_IRWXU);
201 	android_update_permission("Cert", S_IRWXU | S_IRWXG);
202 
203 	if (est_load_cacerts(ctx, url) < 0 ||
204 	    est_build_csr(ctx, url) < 0 ||
205 	    est_simple_enroll(ctx, url, user, pw) < 0)
206 		goto fail;
207 
208 	ret = 0;
209 fail:
210 	xml_node_get_text_free(ctx->xml, url);
211 	xml_node_get_text_free(ctx->xml, user);
212 	xml_node_get_text_free(ctx->xml, pw);
213 
214 	return ret;
215 }
216 
217 
218 static int process_est_cert(struct hs20_osu_client *ctx, xml_node_t *cert,
219 			    const char *fqdn)
220 {
221 	u8 digest1[SHA256_MAC_LEN], digest2[SHA256_MAC_LEN];
222 	char *der, *pem;
223 	size_t der_len, pem_len;
224 	char *fingerprint;
225 	char buf[200];
226 
227 	wpa_printf(MSG_INFO, "PPS for certificate credential - fqdn=%s", fqdn);
228 
229 	fingerprint = xml_node_get_text(ctx->xml, cert);
230 	if (fingerprint == NULL)
231 		return -1;
232 	if (hexstr2bin(fingerprint, digest1, SHA256_MAC_LEN) < 0) {
233 		wpa_printf(MSG_INFO, "Invalid SHA256 hash value");
234 		write_result(ctx, "Invalid client certificate SHA256 hash value in PPS");
235 		xml_node_get_text_free(ctx->xml, fingerprint);
236 		return -1;
237 	}
238 	xml_node_get_text_free(ctx->xml, fingerprint);
239 
240 	der = os_readfile("Cert/est_cert.der", &der_len);
241 	if (der == NULL) {
242 		wpa_printf(MSG_INFO, "Could not find client certificate from EST");
243 		write_result(ctx, "Could not find client certificate from EST");
244 		return -1;
245 	}
246 
247 	if (sha256_vector(1, (const u8 **) &der, &der_len, digest2) < 0) {
248 		os_free(der);
249 		return -1;
250 	}
251 	os_free(der);
252 
253 	if (os_memcmp(digest1, digest2, sizeof(digest1)) != 0) {
254 		wpa_printf(MSG_INFO, "Client certificate from EST does not match fingerprint from PPS MO");
255 		write_result(ctx, "Client certificate from EST does not match fingerprint from PPS MO");
256 		return -1;
257 	}
258 
259 	wpa_printf(MSG_INFO, "Client certificate from EST matches PPS MO");
260 	unlink("Cert/est_cert.der");
261 
262 	os_snprintf(buf, sizeof(buf), "SP/%s/client-ca.pem", fqdn);
263 	if (rename("Cert/est-cacerts.pem", buf) < 0) {
264 		wpa_printf(MSG_INFO, "Could not move est-cacerts.pem to client-ca.pem: %s",
265 			   strerror(errno));
266 		return -1;
267 	}
268 	pem = os_readfile(buf, &pem_len);
269 
270 	os_snprintf(buf, sizeof(buf), "SP/%s/client-cert.pem", fqdn);
271 	if (rename("Cert/est_cert.pem", buf) < 0) {
272 		wpa_printf(MSG_INFO, "Could not move est_cert.pem to client-cert.pem: %s",
273 			   strerror(errno));
274 		os_free(pem);
275 		return -1;
276 	}
277 
278 	if (pem) {
279 		FILE *f = fopen(buf, "a");
280 		if (f) {
281 			fwrite(pem, pem_len, 1, f);
282 			fclose(f);
283 		}
284 		os_free(pem);
285 	}
286 
287 	os_snprintf(buf, sizeof(buf), "SP/%s/client-key.pem", fqdn);
288 	if (rename("Cert/privkey-plain.pem", buf) < 0) {
289 		wpa_printf(MSG_INFO, "Could not move privkey-plain.pem to client-key.pem: %s",
290 			   strerror(errno));
291 		return -1;
292 	}
293 
294 	unlink("Cert/est-req.b64");
295 	unlink("Cert/est-req.pem");
296 	rmdir("Cert");
297 
298 	return 0;
299 }
300 
301 
302 #define TMP_CERT_DL_FILE "tmp-cert-download"
303 
304 static int download_cert(struct hs20_osu_client *ctx, xml_node_t *params,
305 			 const char *fname)
306 {
307 	xml_node_t *url_node, *hash_node;
308 	char *url, *hash;
309 	char *cert;
310 	size_t len;
311 	u8 digest1[SHA256_MAC_LEN], digest2[SHA256_MAC_LEN];
312 	int res;
313 	char *b64;
314 	FILE *f;
315 
316 	url_node = get_node(ctx->xml, params, "CertURL");
317 	hash_node = get_node(ctx->xml, params, "CertSHA256Fingerprint");
318 	if (url_node == NULL || hash_node == NULL)
319 		return -1;
320 	url = xml_node_get_text(ctx->xml, url_node);
321 	hash = xml_node_get_text(ctx->xml, hash_node);
322 	if (url == NULL || hash == NULL) {
323 		xml_node_get_text_free(ctx->xml, url);
324 		xml_node_get_text_free(ctx->xml, hash);
325 		return -1;
326 	}
327 
328 	wpa_printf(MSG_INFO, "CertURL: %s", url);
329 	wpa_printf(MSG_INFO, "SHA256 hash: %s", hash);
330 
331 	if (hexstr2bin(hash, digest1, SHA256_MAC_LEN) < 0) {
332 		wpa_printf(MSG_INFO, "Invalid SHA256 hash value");
333 		write_result(ctx, "Invalid SHA256 hash value for downloaded certificate");
334 		xml_node_get_text_free(ctx->xml, hash);
335 		return -1;
336 	}
337 	xml_node_get_text_free(ctx->xml, hash);
338 
339 	write_summary(ctx, "Download certificate from %s", url);
340 	ctx->no_osu_cert_validation = 1;
341 	http_ocsp_set(ctx->http, 1);
342 	res = http_download_file(ctx->http, url, TMP_CERT_DL_FILE, NULL);
343 	http_ocsp_set(ctx->http,
344 		      (ctx->workarounds & WORKAROUND_OCSP_OPTIONAL) ? 1 : 2);
345 	ctx->no_osu_cert_validation = 0;
346 	xml_node_get_text_free(ctx->xml, url);
347 	if (res < 0)
348 		return -1;
349 
350 	cert = os_readfile(TMP_CERT_DL_FILE, &len);
351 	remove(TMP_CERT_DL_FILE);
352 	if (cert == NULL)
353 		return -1;
354 
355 	if (sha256_vector(1, (const u8 **) &cert, &len, digest2) < 0) {
356 		os_free(cert);
357 		return -1;
358 	}
359 
360 	if (os_memcmp(digest1, digest2, sizeof(digest1)) != 0) {
361 		wpa_printf(MSG_INFO, "Downloaded certificate fingerprint did not match");
362 		write_result(ctx, "Downloaded certificate fingerprint did not match");
363 		os_free(cert);
364 		return -1;
365 	}
366 
367 	b64 = base64_encode(cert, len, NULL);
368 	os_free(cert);
369 	if (b64 == NULL)
370 		return -1;
371 
372 	f = fopen(fname, "wb");
373 	if (f == NULL) {
374 		os_free(b64);
375 		return -1;
376 	}
377 
378 	fprintf(f, "-----BEGIN CERTIFICATE-----\n"
379 		"%s"
380 		"-----END CERTIFICATE-----\n",
381 		b64);
382 
383 	os_free(b64);
384 	fclose(f);
385 
386 	wpa_printf(MSG_INFO, "Downloaded certificate into %s and validated fingerprint",
387 		   fname);
388 	write_summary(ctx, "Downloaded certificate into %s and validated fingerprint",
389 		      fname);
390 
391 	return 0;
392 }
393 
394 
395 static int cmd_dl_osu_ca(struct hs20_osu_client *ctx, const char *pps_fname,
396 			 const char *ca_fname)
397 {
398 	xml_node_t *pps, *node;
399 	int ret;
400 
401 	pps = node_from_file(ctx->xml, pps_fname);
402 	if (pps == NULL) {
403 		wpa_printf(MSG_INFO, "Could not read or parse '%s'", pps_fname);
404 		return -1;
405 	}
406 
407 	node = get_child_node(ctx->xml, pps,
408 			      "SubscriptionUpdate/TrustRoot");
409 	if (node == NULL) {
410 		wpa_printf(MSG_INFO, "No SubscriptionUpdate/TrustRoot/CertURL found from PPS");
411 		xml_node_free(ctx->xml, pps);
412 		return -1;
413 	}
414 
415 	ret = download_cert(ctx, node, ca_fname);
416 	xml_node_free(ctx->xml, pps);
417 
418 	return ret;
419 }
420 
421 
422 static int cmd_dl_polupd_ca(struct hs20_osu_client *ctx, const char *pps_fname,
423 			    const char *ca_fname)
424 {
425 	xml_node_t *pps, *node;
426 	int ret;
427 
428 	pps = node_from_file(ctx->xml, pps_fname);
429 	if (pps == NULL) {
430 		wpa_printf(MSG_INFO, "Could not read or parse '%s'", pps_fname);
431 		return -1;
432 	}
433 
434 	node = get_child_node(ctx->xml, pps,
435 			      "Policy/PolicyUpdate/TrustRoot");
436 	if (node == NULL) {
437 		wpa_printf(MSG_INFO, "No Policy/PolicyUpdate/TrustRoot/CertURL found from PPS");
438 		xml_node_free(ctx->xml, pps);
439 		return -2;
440 	}
441 
442 	ret = download_cert(ctx, node, ca_fname);
443 	xml_node_free(ctx->xml, pps);
444 
445 	return ret;
446 }
447 
448 
449 static int cmd_dl_aaa_ca(struct hs20_osu_client *ctx, const char *pps_fname,
450 			 const char *ca_fname)
451 {
452 	xml_node_t *pps, *node, *aaa;
453 	int ret;
454 
455 	pps = node_from_file(ctx->xml, pps_fname);
456 	if (pps == NULL) {
457 		wpa_printf(MSG_INFO, "Could not read or parse '%s'", pps_fname);
458 		return -1;
459 	}
460 
461 	node = get_child_node(ctx->xml, pps,
462 			      "AAAServerTrustRoot");
463 	if (node == NULL) {
464 		wpa_printf(MSG_INFO, "No AAAServerTrustRoot/CertURL found from PPS");
465 		xml_node_free(ctx->xml, pps);
466 		return -2;
467 	}
468 
469 	aaa = xml_node_first_child(ctx->xml, node);
470 	if (aaa == NULL) {
471 		wpa_printf(MSG_INFO, "No AAAServerTrustRoot/CertURL found from PPS");
472 		xml_node_free(ctx->xml, pps);
473 		return -1;
474 	}
475 
476 	ret = download_cert(ctx, aaa, ca_fname);
477 	xml_node_free(ctx->xml, pps);
478 
479 	return ret;
480 }
481 
482 
483 static int download_trust_roots(struct hs20_osu_client *ctx,
484 				const char *pps_fname)
485 {
486 	char *dir, *pos;
487 	char fname[300];
488 	int ret, ret1;
489 
490 	dir = os_strdup(pps_fname);
491 	if (dir == NULL)
492 		return -1;
493 	pos = os_strrchr(dir, '/');
494 	if (pos == NULL) {
495 		os_free(dir);
496 		return -1;
497 	}
498 	*pos = '\0';
499 
500 	snprintf(fname, sizeof(fname), "%s/ca.pem", dir);
501 	ret = cmd_dl_osu_ca(ctx, pps_fname, fname);
502 	snprintf(fname, sizeof(fname), "%s/polupd-ca.pem", dir);
503 	ret1 = cmd_dl_polupd_ca(ctx, pps_fname, fname);
504 	if (ret == 0 && ret1 == -1)
505 		ret = -1;
506 	snprintf(fname, sizeof(fname), "%s/aaa-ca.pem", dir);
507 	ret1 = cmd_dl_aaa_ca(ctx, pps_fname, fname);
508 	if (ret == 0 && ret1 == -1)
509 		ret = -1;
510 
511 	os_free(dir);
512 
513 	return ret;
514 }
515 
516 
517 static int server_dnsname_suffix_match(struct hs20_osu_client *ctx,
518 				       const char *fqdn)
519 {
520 	size_t match_len, len, i;
521 	const char *val;
522 
523 	match_len = os_strlen(fqdn);
524 
525 	for (i = 0; i < ctx->server_dnsname_count; i++) {
526 		wpa_printf(MSG_INFO,
527 			   "Checking suffix match against server dNSName %s",
528 			   ctx->server_dnsname[i]);
529 		val = ctx->server_dnsname[i];
530 		len = os_strlen(val);
531 
532 		if (match_len > len)
533 			continue;
534 
535 		if (os_strncasecmp(val + len - match_len, fqdn, match_len) != 0)
536 			continue; /* no match */
537 
538 		if (match_len == len)
539 			return 1; /* exact match */
540 
541 		if (val[len - match_len - 1] == '.')
542 			return 1; /* full label match completes suffix match */
543 
544 		/* Reject due to incomplete label match */
545 	}
546 
547 	/* None of the dNSName(s) matched */
548 	return 0;
549 }
550 
551 
552 int hs20_add_pps_mo(struct hs20_osu_client *ctx, const char *uri,
553 		    xml_node_t *add_mo, char *fname, size_t fname_len)
554 {
555 	char *str;
556 	char *fqdn, *pos;
557 	xml_node_t *tnds, *mo, *cert;
558 	const char *name;
559 	int ret;
560 
561 	if (strncmp(uri, "./Wi-Fi/", 8) != 0) {
562 		wpa_printf(MSG_INFO, "Unsupported location for addMO to add PPS MO: '%s'",
563 			   uri);
564 		write_result(ctx, "Unsupported location for addMO to add PPS MO: '%s'",
565 			     uri);
566 		return -1;
567 	}
568 
569 	fqdn = strdup(uri + 8);
570 	if (fqdn == NULL)
571 		return -1;
572 	pos = strchr(fqdn, '/');
573 	if (pos) {
574 		if (os_strcasecmp(pos, "/PerProviderSubscription") != 0) {
575 			wpa_printf(MSG_INFO, "Unsupported location for addMO to add PPS MO (extra directory): '%s'",
576 				   uri);
577 			write_result(ctx, "Unsupported location for addMO to "
578 				     "add PPS MO (extra directory): '%s'", uri);
579 			free(fqdn);
580 			return -1;
581 		}
582 		*pos = '\0'; /* remove trailing slash and PPS node name */
583 	}
584 	wpa_printf(MSG_INFO, "SP FQDN: %s", fqdn);
585 
586 	if (!server_dnsname_suffix_match(ctx, fqdn)) {
587 		wpa_printf(MSG_INFO,
588 			   "FQDN '%s' for new PPS MO did not have suffix match with server's dNSName values, count: %d",
589 			   fqdn, (int) ctx->server_dnsname_count);
590 		write_result(ctx, "FQDN '%s' for new PPS MO did not have suffix match with server's dNSName values",
591 			     fqdn);
592 		free(fqdn);
593 		return -1;
594 	}
595 
596 	if (!valid_fqdn(fqdn)) {
597 		wpa_printf(MSG_INFO, "Invalid FQDN '%s'", fqdn);
598 		write_result(ctx, "Invalid FQDN '%s'", fqdn);
599 		free(fqdn);
600 		return -1;
601 	}
602 
603 	mkdir("SP", S_IRWXU);
604 	snprintf(fname, fname_len, "SP/%s", fqdn);
605 	if (mkdir(fname, S_IRWXU) < 0) {
606 		if (errno != EEXIST) {
607 			int err = errno;
608 			wpa_printf(MSG_INFO, "mkdir(%s) failed: %s",
609 				   fname, strerror(err));
610 			free(fqdn);
611 			return -1;
612 		}
613 	}
614 
615 	android_update_permission("SP", S_IRWXU | S_IRWXG);
616 	android_update_permission(fname, S_IRWXU | S_IRWXG);
617 
618 	snprintf(fname, fname_len, "SP/%s/pps.xml", fqdn);
619 
620 	if (os_file_exists(fname)) {
621 		wpa_printf(MSG_INFO, "PPS file '%s' exists - reject addMO",
622 			   fname);
623 		write_result(ctx, "PPS file '%s' exists - reject addMO",
624 			     fname);
625 		free(fqdn);
626 		return -2;
627 	}
628 	wpa_printf(MSG_INFO, "Using PPS file: %s", fname);
629 
630 	str = xml_node_get_text(ctx->xml, add_mo);
631 	if (str == NULL) {
632 		wpa_printf(MSG_INFO, "Could not extract MO text");
633 		free(fqdn);
634 		return -1;
635 	}
636 	wpa_printf(MSG_DEBUG, "[hs20] addMO text: '%s'", str);
637 
638 	tnds = xml_node_from_buf(ctx->xml, str);
639 	xml_node_get_text_free(ctx->xml, str);
640 	if (tnds == NULL) {
641 		wpa_printf(MSG_INFO, "[hs20] Could not parse addMO text");
642 		free(fqdn);
643 		return -1;
644 	}
645 
646 	mo = tnds_to_mo(ctx->xml, tnds);
647 	if (mo == NULL) {
648 		wpa_printf(MSG_INFO, "[hs20] Could not parse addMO TNDS text");
649 		free(fqdn);
650 		return -1;
651 	}
652 
653 	debug_dump_node(ctx, "Parsed TNDS", mo);
654 
655 	name = xml_node_get_localname(ctx->xml, mo);
656 	if (os_strcasecmp(name, "PerProviderSubscription") != 0) {
657 		wpa_printf(MSG_INFO, "[hs20] Unexpected PPS MO root node name '%s'",
658 			   name);
659 		free(fqdn);
660 		return -1;
661 	}
662 
663 	cert = get_child_node(ctx->xml, mo,
664 			      "Credential/DigitalCertificate/"
665 			      "CertSHA256Fingerprint");
666 	if (cert && process_est_cert(ctx, cert, fqdn) < 0) {
667 		xml_node_free(ctx->xml, mo);
668 		free(fqdn);
669 		return -1;
670 	}
671 	free(fqdn);
672 
673 	if (node_to_file(ctx->xml, fname, mo) < 0) {
674 		wpa_printf(MSG_INFO, "Could not write MO to file");
675 		xml_node_free(ctx->xml, mo);
676 		return -1;
677 	}
678 	xml_node_free(ctx->xml, mo);
679 
680 	wpa_printf(MSG_INFO, "A new PPS MO added as '%s'", fname);
681 	write_summary(ctx, "A new PPS MO added as '%s'", fname);
682 
683 	ret = download_trust_roots(ctx, fname);
684 	if (ret < 0) {
685 		wpa_printf(MSG_INFO, "Remove invalid PPS MO file");
686 		write_summary(ctx, "Remove invalid PPS MO file");
687 		unlink(fname);
688 	}
689 
690 	return ret;
691 }
692 
693 
694 int update_pps_file(struct hs20_osu_client *ctx, const char *pps_fname,
695 		    xml_node_t *pps)
696 {
697 	char *str;
698 	FILE *f;
699 	char backup[300];
700 
701 	if (ctx->client_cert_present) {
702 		xml_node_t *cert;
703 		cert = get_child_node(ctx->xml, pps,
704 				      "Credential/DigitalCertificate/"
705 				      "CertSHA256Fingerprint");
706 		if (cert && os_file_exists("Cert/est_cert.der") &&
707 		    process_est_cert(ctx, cert, ctx->fqdn) < 0) {
708 			wpa_printf(MSG_INFO, "EST certificate update processing failed on PPS MO update");
709 			return -1;
710 		}
711 	}
712 
713 	wpa_printf(MSG_INFO, "Updating PPS MO %s", pps_fname);
714 
715 	str = xml_node_to_str(ctx->xml, pps);
716 	if (str == NULL) {
717 		wpa_printf(MSG_ERROR, "No node found");
718 		return -1;
719 	}
720 	wpa_printf(MSG_MSGDUMP, "[hs20] Updated PPS: '%s'", str);
721 
722 	snprintf(backup, sizeof(backup), "%s.bak", pps_fname);
723 	rename(pps_fname, backup);
724 	f = fopen(pps_fname, "w");
725 	if (f == NULL) {
726 		wpa_printf(MSG_INFO, "Could not write PPS");
727 		rename(backup, pps_fname);
728 		free(str);
729 		return -1;
730 	}
731 	fprintf(f, "%s\n", str);
732 	fclose(f);
733 
734 	free(str);
735 
736 	return 0;
737 }
738 
739 
740 void get_user_pw(struct hs20_osu_client *ctx, xml_node_t *pps,
741 		 const char *alt_loc, char **user, char **pw)
742 {
743 	xml_node_t *node;
744 
745 	node = get_child_node(ctx->xml, pps,
746 			      "Credential/UsernamePassword/Username");
747 	if (node)
748 		*user = xml_node_get_text(ctx->xml, node);
749 
750 	node = get_child_node(ctx->xml, pps,
751 			      "Credential/UsernamePassword/Password");
752 	if (node)
753 		*pw = xml_node_get_base64_text(ctx->xml, node, NULL);
754 
755 	node = get_child_node(ctx->xml, pps, alt_loc);
756 	if (node) {
757 		xml_node_t *a;
758 		a = get_node(ctx->xml, node, "Username");
759 		if (a) {
760 			xml_node_get_text_free(ctx->xml, *user);
761 			*user = xml_node_get_text(ctx->xml, a);
762 			wpa_printf(MSG_INFO, "Use OSU username '%s'", *user);
763 		}
764 
765 		a = get_node(ctx->xml, node, "Password");
766 		if (a) {
767 			free(*pw);
768 			*pw = xml_node_get_base64_text(ctx->xml, a, NULL);
769 			wpa_printf(MSG_INFO, "Use OSU password");
770 		}
771 	}
772 }
773 
774 
775 /* Remove old credentials based on HomeSP/FQDN */
776 static void remove_sp_creds(struct hs20_osu_client *ctx, const char *fqdn)
777 {
778 	char cmd[300];
779 	os_snprintf(cmd, sizeof(cmd), "REMOVE_CRED provisioning_sp=%s", fqdn);
780 	if (wpa_command(ctx->ifname, cmd) < 0)
781 		wpa_printf(MSG_INFO, "Failed to remove old credential(s)");
782 }
783 
784 
785 static void set_pps_cred_policy_spe(struct hs20_osu_client *ctx, int id,
786 				    xml_node_t *spe)
787 {
788 	xml_node_t *ssid;
789 	char *txt;
790 
791 	ssid = get_node(ctx->xml, spe, "SSID");
792 	if (ssid == NULL)
793 		return;
794 	txt = xml_node_get_text(ctx->xml, ssid);
795 	if (txt == NULL)
796 		return;
797 	wpa_printf(MSG_DEBUG, "- Policy/SPExclusionList/<X+>/SSID = %s", txt);
798 	if (set_cred_quoted(ctx->ifname, id, "excluded_ssid", txt) < 0)
799 		wpa_printf(MSG_INFO, "Failed to set cred excluded_ssid");
800 	xml_node_get_text_free(ctx->xml, txt);
801 }
802 
803 
804 static void set_pps_cred_policy_spel(struct hs20_osu_client *ctx, int id,
805 				     xml_node_t *spel)
806 {
807 	xml_node_t *child;
808 
809 	xml_node_for_each_child(ctx->xml, child, spel) {
810 		xml_node_for_each_check(ctx->xml, child);
811 		set_pps_cred_policy_spe(ctx, id, child);
812 	}
813 }
814 
815 
816 static void set_pps_cred_policy_prp(struct hs20_osu_client *ctx, int id,
817 				    xml_node_t *prp)
818 {
819 	xml_node_t *node;
820 	char *txt = NULL, *pos;
821 	char *prio, *country_buf = NULL;
822 	const char *country;
823 	char val[200];
824 	int priority;
825 
826 	node = get_node(ctx->xml, prp, "Priority");
827 	if (node == NULL)
828 		return;
829 	prio = xml_node_get_text(ctx->xml, node);
830 	if (prio == NULL)
831 		return;
832 	wpa_printf(MSG_INFO, "- Policy/PreferredRoamingPartnerList/<X+>/Priority = %s",
833 		   prio);
834 	priority = atoi(prio);
835 	xml_node_get_text_free(ctx->xml, prio);
836 
837 	node = get_node(ctx->xml, prp, "Country");
838 	if (node) {
839 		country_buf = xml_node_get_text(ctx->xml, node);
840 		if (country_buf == NULL)
841 			return;
842 		country = country_buf;
843 		wpa_printf(MSG_INFO, "- Policy/PreferredRoamingPartnerList/<X+>/Country = %s",
844 			   country);
845 	} else {
846 		country = "*";
847 	}
848 
849 	node = get_node(ctx->xml, prp, "FQDN_Match");
850 	if (node == NULL)
851 		goto out;
852 	txt = xml_node_get_text(ctx->xml, node);
853 	if (txt == NULL)
854 		goto out;
855 	wpa_printf(MSG_INFO, "- Policy/PreferredRoamingPartnerList/<X+>/FQDN_Match = %s",
856 		   txt);
857 	pos = strrchr(txt, ',');
858 	if (pos == NULL)
859 		goto out;
860 	*pos++ = '\0';
861 
862 	snprintf(val, sizeof(val), "%s,%d,%d,%s", txt,
863 		 strcmp(pos, "includeSubdomains") != 0, priority, country);
864 	if (set_cred_quoted(ctx->ifname, id, "roaming_partner", val) < 0)
865 		wpa_printf(MSG_INFO, "Failed to set cred roaming_partner");
866 out:
867 	xml_node_get_text_free(ctx->xml, country_buf);
868 	xml_node_get_text_free(ctx->xml, txt);
869 }
870 
871 
872 static void set_pps_cred_policy_prpl(struct hs20_osu_client *ctx, int id,
873 				     xml_node_t *prpl)
874 {
875 	xml_node_t *child;
876 
877 	xml_node_for_each_child(ctx->xml, child, prpl) {
878 		xml_node_for_each_check(ctx->xml, child);
879 		set_pps_cred_policy_prp(ctx, id, child);
880 	}
881 }
882 
883 
884 static void set_pps_cred_policy_min_backhaul(struct hs20_osu_client *ctx, int id,
885 					     xml_node_t *min_backhaul)
886 {
887 	xml_node_t *node;
888 	char *type, *dl = NULL, *ul = NULL;
889 	int home;
890 
891 	node = get_node(ctx->xml, min_backhaul, "NetworkType");
892 	if (node == NULL) {
893 		wpa_printf(MSG_INFO, "Ignore MinBackhaulThreshold without mandatory NetworkType node");
894 		return;
895 	}
896 
897 	type = xml_node_get_text(ctx->xml, node);
898 	if (type == NULL)
899 		return;
900 	wpa_printf(MSG_INFO, "- Policy/MinBackhaulThreshold/<X+>/NetworkType = %s",
901 		   type);
902 	if (os_strcasecmp(type, "home") == 0)
903 		home = 1;
904 	else if (os_strcasecmp(type, "roaming") == 0)
905 		home = 0;
906 	else {
907 		wpa_printf(MSG_INFO, "Ignore MinBackhaulThreshold with invalid NetworkType");
908 		xml_node_get_text_free(ctx->xml, type);
909 		return;
910 	}
911 	xml_node_get_text_free(ctx->xml, type);
912 
913 	node = get_node(ctx->xml, min_backhaul, "DLBandwidth");
914 	if (node)
915 		dl = xml_node_get_text(ctx->xml, node);
916 
917 	node = get_node(ctx->xml, min_backhaul, "ULBandwidth");
918 	if (node)
919 		ul = xml_node_get_text(ctx->xml, node);
920 
921 	if (dl == NULL && ul == NULL) {
922 		wpa_printf(MSG_INFO, "Ignore MinBackhaulThreshold without either DLBandwidth or ULBandwidth nodes");
923 		return;
924 	}
925 
926 	if (dl)
927 		wpa_printf(MSG_INFO, "- Policy/MinBackhaulThreshold/<X+>/DLBandwidth = %s",
928 			   dl);
929 	if (ul)
930 		wpa_printf(MSG_INFO, "- Policy/MinBackhaulThreshold/<X+>/ULBandwidth = %s",
931 			   ul);
932 
933 	if (home) {
934 		if (dl &&
935 		    set_cred(ctx->ifname, id, "min_dl_bandwidth_home", dl) < 0)
936 			wpa_printf(MSG_INFO, "Failed to set cred bandwidth limit");
937 		if (ul &&
938 		    set_cred(ctx->ifname, id, "min_ul_bandwidth_home", ul) < 0)
939 			wpa_printf(MSG_INFO, "Failed to set cred bandwidth limit");
940 	} else {
941 		if (dl &&
942 		    set_cred(ctx->ifname, id, "min_dl_bandwidth_roaming", dl) <
943 		    0)
944 			wpa_printf(MSG_INFO, "Failed to set cred bandwidth limit");
945 		if (ul &&
946 		    set_cred(ctx->ifname, id, "min_ul_bandwidth_roaming", ul) <
947 		    0)
948 			wpa_printf(MSG_INFO, "Failed to set cred bandwidth limit");
949 	}
950 
951 	xml_node_get_text_free(ctx->xml, dl);
952 	xml_node_get_text_free(ctx->xml, ul);
953 }
954 
955 
956 static void set_pps_cred_policy_min_backhaul_list(struct hs20_osu_client *ctx,
957 						  int id, xml_node_t *node)
958 {
959 	xml_node_t *child;
960 
961 	wpa_printf(MSG_INFO, "- Policy/MinBackhaulThreshold");
962 
963 	xml_node_for_each_child(ctx->xml, child, node) {
964 		xml_node_for_each_check(ctx->xml, child);
965 		set_pps_cred_policy_min_backhaul(ctx, id, child);
966 	}
967 }
968 
969 
970 static void set_pps_cred_policy_update(struct hs20_osu_client *ctx, int id,
971 				       xml_node_t *node)
972 {
973 	wpa_printf(MSG_INFO, "- Policy/PolicyUpdate");
974 	/* Not used in wpa_supplicant */
975 }
976 
977 
978 static void set_pps_cred_policy_required_proto_port(struct hs20_osu_client *ctx,
979 						    int id, xml_node_t *tuple)
980 {
981 	xml_node_t *node;
982 	char *proto, *port;
983 	char *buf;
984 	size_t buflen;
985 
986 	node = get_node(ctx->xml, tuple, "IPProtocol");
987 	if (node == NULL) {
988 		wpa_printf(MSG_INFO, "Ignore RequiredProtoPortTuple without mandatory IPProtocol node");
989 		return;
990 	}
991 
992 	proto = xml_node_get_text(ctx->xml, node);
993 	if (proto == NULL)
994 		return;
995 
996 	wpa_printf(MSG_INFO, "- Policy/RequiredProtoPortTuple/<X+>/IPProtocol = %s",
997 		   proto);
998 
999 	node = get_node(ctx->xml, tuple, "PortNumber");
1000 	port = node ? xml_node_get_text(ctx->xml, node) : NULL;
1001 	if (port) {
1002 		wpa_printf(MSG_INFO, "- Policy/RequiredProtoPortTuple/<X+>/PortNumber = %s",
1003 			   port);
1004 		buflen = os_strlen(proto) + os_strlen(port) + 10;
1005 		buf = os_malloc(buflen);
1006 		if (buf)
1007 			os_snprintf(buf, buflen, "%s:%s", proto, port);
1008 		xml_node_get_text_free(ctx->xml, port);
1009 	} else {
1010 		buflen = os_strlen(proto) + 10;
1011 		buf = os_malloc(buflen);
1012 		if (buf)
1013 			os_snprintf(buf, buflen, "%s", proto);
1014 	}
1015 
1016 	xml_node_get_text_free(ctx->xml, proto);
1017 
1018 	if (buf == NULL)
1019 		return;
1020 
1021 	if (set_cred(ctx->ifname, id, "req_conn_capab", buf) < 0)
1022 		wpa_printf(MSG_INFO, "Could not set req_conn_capab");
1023 
1024 	os_free(buf);
1025 }
1026 
1027 
1028 static void set_pps_cred_policy_required_proto_ports(struct hs20_osu_client *ctx,
1029 						     int id, xml_node_t *node)
1030 {
1031 	xml_node_t *child;
1032 
1033 	wpa_printf(MSG_INFO, "- Policy/RequiredProtoPortTuple");
1034 
1035 	xml_node_for_each_child(ctx->xml, child, node) {
1036 		xml_node_for_each_check(ctx->xml, child);
1037 		set_pps_cred_policy_required_proto_port(ctx, id, child);
1038 	}
1039 }
1040 
1041 
1042 static void set_pps_cred_policy_max_bss_load(struct hs20_osu_client *ctx, int id,
1043 					     xml_node_t *node)
1044 {
1045 	char *str = xml_node_get_text(ctx->xml, node);
1046 	if (str == NULL)
1047 		return;
1048 	wpa_printf(MSG_INFO, "- Policy/MaximumBSSLoadValue - %s", str);
1049 	if (set_cred(ctx->ifname, id, "max_bss_load", str) < 0)
1050 		wpa_printf(MSG_INFO, "Failed to set cred max_bss_load limit");
1051 	xml_node_get_text_free(ctx->xml, str);
1052 }
1053 
1054 
1055 static void set_pps_cred_policy(struct hs20_osu_client *ctx, int id,
1056 				xml_node_t *node)
1057 {
1058 	xml_node_t *child;
1059 	const char *name;
1060 
1061 	wpa_printf(MSG_INFO, "- Policy");
1062 
1063 	xml_node_for_each_child(ctx->xml, child, node) {
1064 		xml_node_for_each_check(ctx->xml, child);
1065 		name = xml_node_get_localname(ctx->xml, child);
1066 		if (os_strcasecmp(name, "PreferredRoamingPartnerList") == 0)
1067 			set_pps_cred_policy_prpl(ctx, id, child);
1068 		else if (os_strcasecmp(name, "MinBackhaulThreshold") == 0)
1069 			set_pps_cred_policy_min_backhaul_list(ctx, id, child);
1070 		else if (os_strcasecmp(name, "PolicyUpdate") == 0)
1071 			set_pps_cred_policy_update(ctx, id, child);
1072 		else if (os_strcasecmp(name, "SPExclusionList") == 0)
1073 			set_pps_cred_policy_spel(ctx, id, child);
1074 		else if (os_strcasecmp(name, "RequiredProtoPortTuple") == 0)
1075 			set_pps_cred_policy_required_proto_ports(ctx, id, child);
1076 		else if (os_strcasecmp(name, "MaximumBSSLoadValue") == 0)
1077 			set_pps_cred_policy_max_bss_load(ctx, id, child);
1078 		else
1079 			wpa_printf(MSG_INFO, "Unknown Policy node '%s'", name);
1080 	}
1081 }
1082 
1083 
1084 static void set_pps_cred_priority(struct hs20_osu_client *ctx, int id,
1085 				  xml_node_t *node)
1086 {
1087 	char *str = xml_node_get_text(ctx->xml, node);
1088 	if (str == NULL)
1089 		return;
1090 	wpa_printf(MSG_INFO, "- CredentialPriority = %s", str);
1091 	if (set_cred(ctx->ifname, id, "sp_priority", str) < 0)
1092 		wpa_printf(MSG_INFO, "Failed to set cred sp_priority");
1093 	xml_node_get_text_free(ctx->xml, str);
1094 }
1095 
1096 
1097 static void set_pps_cred_aaa_server_trust_root(struct hs20_osu_client *ctx,
1098 					       int id, xml_node_t *node)
1099 {
1100 	wpa_printf(MSG_INFO, "- AAAServerTrustRoot - TODO");
1101 }
1102 
1103 
1104 static void set_pps_cred_sub_update(struct hs20_osu_client *ctx, int id,
1105 				    xml_node_t *node)
1106 {
1107 	wpa_printf(MSG_INFO, "- SubscriptionUpdate");
1108 	/* not used within wpa_supplicant */
1109 }
1110 
1111 
1112 static void set_pps_cred_home_sp_network_id(struct hs20_osu_client *ctx,
1113 					    int id, xml_node_t *node)
1114 {
1115 	xml_node_t *ssid_node, *hessid_node;
1116 	char *ssid, *hessid;
1117 
1118 	ssid_node = get_node(ctx->xml, node, "SSID");
1119 	if (ssid_node == NULL) {
1120 		wpa_printf(MSG_INFO, "Ignore HomeSP/NetworkID without mandatory SSID node");
1121 		return;
1122 	}
1123 
1124 	hessid_node = get_node(ctx->xml, node, "HESSID");
1125 
1126 	ssid = xml_node_get_text(ctx->xml, ssid_node);
1127 	if (ssid == NULL)
1128 		return;
1129 	hessid = hessid_node ? xml_node_get_text(ctx->xml, hessid_node) : NULL;
1130 
1131 	wpa_printf(MSG_INFO, "- HomeSP/NetworkID/<X+>/SSID = %s", ssid);
1132 	if (hessid)
1133 		wpa_printf(MSG_INFO, "- HomeSP/NetworkID/<X+>/HESSID = %s",
1134 			   hessid);
1135 
1136 	/* TODO: Configure to wpa_supplicant */
1137 
1138 	xml_node_get_text_free(ctx->xml, ssid);
1139 	xml_node_get_text_free(ctx->xml, hessid);
1140 }
1141 
1142 
1143 static void set_pps_cred_home_sp_network_ids(struct hs20_osu_client *ctx,
1144 					     int id, xml_node_t *node)
1145 {
1146 	xml_node_t *child;
1147 
1148 	wpa_printf(MSG_INFO, "- HomeSP/NetworkID");
1149 
1150 	xml_node_for_each_child(ctx->xml, child, node) {
1151 		xml_node_for_each_check(ctx->xml, child);
1152 		set_pps_cred_home_sp_network_id(ctx, id, child);
1153 	}
1154 }
1155 
1156 
1157 static void set_pps_cred_home_sp_friendly_name(struct hs20_osu_client *ctx,
1158 					       int id, xml_node_t *node)
1159 {
1160 	char *str = xml_node_get_text(ctx->xml, node);
1161 	if (str == NULL)
1162 		return;
1163 	wpa_printf(MSG_INFO, "- HomeSP/FriendlyName = %s", str);
1164 	/* not used within wpa_supplicant(?) */
1165 	xml_node_get_text_free(ctx->xml, str);
1166 }
1167 
1168 
1169 static void set_pps_cred_home_sp_icon_url(struct hs20_osu_client *ctx,
1170 					  int id, xml_node_t *node)
1171 {
1172 	char *str = xml_node_get_text(ctx->xml, node);
1173 	if (str == NULL)
1174 		return;
1175 	wpa_printf(MSG_INFO, "- HomeSP/IconURL = %s", str);
1176 	/* not used within wpa_supplicant */
1177 	xml_node_get_text_free(ctx->xml, str);
1178 }
1179 
1180 
1181 static void set_pps_cred_home_sp_fqdn(struct hs20_osu_client *ctx, int id,
1182 				      xml_node_t *node)
1183 {
1184 	char *str = xml_node_get_text(ctx->xml, node);
1185 	if (str == NULL)
1186 		return;
1187 	wpa_printf(MSG_INFO, "- HomeSP/FQDN = %s", str);
1188 	if (set_cred_quoted(ctx->ifname, id, "domain", str) < 0)
1189 		wpa_printf(MSG_INFO, "Failed to set cred domain");
1190 	if (set_cred_quoted(ctx->ifname, id, "domain_suffix_match", str) < 0)
1191 		wpa_printf(MSG_INFO, "Failed to set cred domain_suffix_match");
1192 	xml_node_get_text_free(ctx->xml, str);
1193 }
1194 
1195 
1196 static void set_pps_cred_home_sp_oi(struct hs20_osu_client *ctx, int id,
1197 				    xml_node_t *node)
1198 {
1199 	xml_node_t *child;
1200 	const char *name;
1201 	char *homeoi = NULL;
1202 	int required = 0;
1203 	char *str;
1204 
1205 	xml_node_for_each_child(ctx->xml, child, node) {
1206 		xml_node_for_each_check(ctx->xml, child);
1207 		name = xml_node_get_localname(ctx->xml, child);
1208 		if (strcasecmp(name, "HomeOI") == 0 && !homeoi) {
1209 			homeoi = xml_node_get_text(ctx->xml, child);
1210 			wpa_printf(MSG_INFO, "- HomeSP/HomeOIList/<X+>/HomeOI = %s",
1211 				   homeoi);
1212 		} else if (strcasecmp(name, "HomeOIRequired") == 0) {
1213 			str = xml_node_get_text(ctx->xml, child);
1214 			wpa_printf(MSG_INFO, "- HomeSP/HomeOIList/<X+>/HomeOIRequired = '%s'",
1215 				   str);
1216 			if (str == NULL)
1217 				continue;
1218 			required = strcasecmp(str, "true") == 0;
1219 			xml_node_get_text_free(ctx->xml, str);
1220 		} else
1221 			wpa_printf(MSG_INFO, "Unknown HomeOIList node '%s'",
1222 				   name);
1223 	}
1224 
1225 	if (homeoi == NULL) {
1226 		wpa_printf(MSG_INFO, "- HomeSP/HomeOIList/<X+> without HomeOI ignored");
1227 		return;
1228 	}
1229 
1230 	wpa_printf(MSG_INFO, "- HomeSP/HomeOIList/<X+> '%s' required=%d",
1231 		   homeoi, required);
1232 
1233 	if (required) {
1234 		if (set_cred_quoted(ctx->ifname, id, "required_home_ois",
1235 				    homeoi) < 0)
1236 			wpa_printf(MSG_INFO,
1237 				   "Failed to set cred required_home_ois");
1238 	} else {
1239 		if (set_cred_quoted(ctx->ifname, id, "home_ois", homeoi) < 0)
1240 			wpa_printf(MSG_INFO, "Failed to set cred home_ois");
1241 	}
1242 
1243 	xml_node_get_text_free(ctx->xml, homeoi);
1244 }
1245 
1246 
1247 static void set_pps_cred_home_sp_oi_list(struct hs20_osu_client *ctx, int id,
1248 					 xml_node_t *node)
1249 {
1250 	xml_node_t *child;
1251 
1252 	wpa_printf(MSG_INFO, "- HomeSP/HomeOIList");
1253 
1254 	xml_node_for_each_child(ctx->xml, child, node) {
1255 		xml_node_for_each_check(ctx->xml, child);
1256 		set_pps_cred_home_sp_oi(ctx, id, child);
1257 	}
1258 }
1259 
1260 
1261 static void set_pps_cred_home_sp_other_partner(struct hs20_osu_client *ctx,
1262 					       int id, xml_node_t *node)
1263 {
1264 	xml_node_t *child;
1265 	const char *name;
1266 	char *fqdn = NULL;
1267 
1268 	xml_node_for_each_child(ctx->xml, child, node) {
1269 		xml_node_for_each_check(ctx->xml, child);
1270 		name = xml_node_get_localname(ctx->xml, child);
1271 		if (os_strcasecmp(name, "FQDN") == 0 && !fqdn) {
1272 			fqdn = xml_node_get_text(ctx->xml, child);
1273 			wpa_printf(MSG_INFO, "- HomeSP/OtherHomePartners/<X+>/FQDN = %s",
1274 				   fqdn);
1275 		} else
1276 			wpa_printf(MSG_INFO, "Unknown OtherHomePartners node '%s'",
1277 				   name);
1278 	}
1279 
1280 	if (fqdn == NULL) {
1281 		wpa_printf(MSG_INFO, "- HomeSP/OtherHomePartners/<X+> without FQDN ignored");
1282 		return;
1283 	}
1284 
1285 	if (set_cred_quoted(ctx->ifname, id, "domain", fqdn) < 0)
1286 		wpa_printf(MSG_INFO, "Failed to set cred domain for OtherHomePartners node");
1287 
1288 	xml_node_get_text_free(ctx->xml, fqdn);
1289 }
1290 
1291 
1292 static void set_pps_cred_home_sp_other_partners(struct hs20_osu_client *ctx,
1293 						int id,
1294 						xml_node_t *node)
1295 {
1296 	xml_node_t *child;
1297 
1298 	wpa_printf(MSG_INFO, "- HomeSP/OtherHomePartners");
1299 
1300 	xml_node_for_each_child(ctx->xml, child, node) {
1301 		xml_node_for_each_check(ctx->xml, child);
1302 		set_pps_cred_home_sp_other_partner(ctx, id, child);
1303 	}
1304 }
1305 
1306 
1307 static void set_pps_cred_home_sp_roaming_consortium_oi(
1308 	struct hs20_osu_client *ctx, int id, xml_node_t *node)
1309 {
1310 	char *str = xml_node_get_text(ctx->xml, node);
1311 	if (str == NULL)
1312 		return;
1313 	wpa_printf(MSG_INFO, "- HomeSP/RoamingConsortiumOI = %s", str);
1314 	if (set_cred_quoted(ctx->ifname, id, "roaming_consortiums",
1315 			    str) < 0)
1316 		wpa_printf(MSG_INFO, "Failed to set cred roaming_consortiums");
1317 	xml_node_get_text_free(ctx->xml, str);
1318 }
1319 
1320 
1321 static void set_pps_cred_home_sp(struct hs20_osu_client *ctx, int id,
1322 				 xml_node_t *node)
1323 {
1324 	xml_node_t *child;
1325 	const char *name;
1326 
1327 	wpa_printf(MSG_INFO, "- HomeSP");
1328 
1329 	xml_node_for_each_child(ctx->xml, child, node) {
1330 		xml_node_for_each_check(ctx->xml, child);
1331 		name = xml_node_get_localname(ctx->xml, child);
1332 		if (os_strcasecmp(name, "NetworkID") == 0)
1333 			set_pps_cred_home_sp_network_ids(ctx, id, child);
1334 		else if (os_strcasecmp(name, "FriendlyName") == 0)
1335 			set_pps_cred_home_sp_friendly_name(ctx, id, child);
1336 		else if (os_strcasecmp(name, "IconURL") == 0)
1337 			set_pps_cred_home_sp_icon_url(ctx, id, child);
1338 		else if (os_strcasecmp(name, "FQDN") == 0)
1339 			set_pps_cred_home_sp_fqdn(ctx, id, child);
1340 		else if (os_strcasecmp(name, "HomeOIList") == 0)
1341 			set_pps_cred_home_sp_oi_list(ctx, id, child);
1342 		else if (os_strcasecmp(name, "OtherHomePartners") == 0)
1343 			set_pps_cred_home_sp_other_partners(ctx, id, child);
1344 		else if (os_strcasecmp(name, "RoamingConsortiumOI") == 0)
1345 			set_pps_cred_home_sp_roaming_consortium_oi(ctx, id,
1346 								   child);
1347 		else
1348 			wpa_printf(MSG_INFO, "Unknown HomeSP node '%s'", name);
1349 	}
1350 }
1351 
1352 
1353 static void set_pps_cred_sub_params(struct hs20_osu_client *ctx, int id,
1354 				    xml_node_t *node)
1355 {
1356 	wpa_printf(MSG_INFO, "- SubscriptionParameters");
1357 	/* not used within wpa_supplicant */
1358 }
1359 
1360 
1361 static void set_pps_cred_creation_date(struct hs20_osu_client *ctx, int id,
1362 				       xml_node_t *node)
1363 {
1364 	char *str = xml_node_get_text(ctx->xml, node);
1365 	if (str == NULL)
1366 		return;
1367 	wpa_printf(MSG_INFO, "- Credential/CreationDate = %s", str);
1368 	/* not used within wpa_supplicant */
1369 	xml_node_get_text_free(ctx->xml, str);
1370 }
1371 
1372 
1373 static void set_pps_cred_expiration_date(struct hs20_osu_client *ctx, int id,
1374 					 xml_node_t *node)
1375 {
1376 	char *str = xml_node_get_text(ctx->xml, node);
1377 	if (str == NULL)
1378 		return;
1379 	wpa_printf(MSG_INFO, "- Credential/ExpirationDate = %s", str);
1380 	/* not used within wpa_supplicant */
1381 	xml_node_get_text_free(ctx->xml, str);
1382 }
1383 
1384 
1385 static void set_pps_cred_username(struct hs20_osu_client *ctx, int id,
1386 				  xml_node_t *node)
1387 {
1388 	char *str = xml_node_get_text(ctx->xml, node);
1389 	if (str == NULL)
1390 		return;
1391 	wpa_printf(MSG_INFO, "- Credential/UsernamePassword/Username = %s",
1392 		   str);
1393 	if (set_cred_quoted(ctx->ifname, id, "username", str) < 0)
1394 		wpa_printf(MSG_INFO, "Failed to set cred username");
1395 	xml_node_get_text_free(ctx->xml, str);
1396 }
1397 
1398 
1399 static void set_pps_cred_password(struct hs20_osu_client *ctx, int id,
1400 				  xml_node_t *node)
1401 {
1402 	int len, i;
1403 	char *pw, *hex, *pos, *end;
1404 
1405 	pw = xml_node_get_base64_text(ctx->xml, node, &len);
1406 	if (pw == NULL)
1407 		return;
1408 
1409 	wpa_printf(MSG_INFO, "- Credential/UsernamePassword/Password = %s", pw);
1410 
1411 	hex = malloc(len * 2 + 1);
1412 	if (hex == NULL) {
1413 		free(pw);
1414 		return;
1415 	}
1416 	end = hex + len * 2 + 1;
1417 	pos = hex;
1418 	for (i = 0; i < len; i++) {
1419 		snprintf(pos, end - pos, "%02x", pw[i]);
1420 		pos += 2;
1421 	}
1422 	free(pw);
1423 
1424 	if (set_cred(ctx->ifname, id, "password", hex) < 0)
1425 		wpa_printf(MSG_INFO, "Failed to set cred password");
1426 	free(hex);
1427 }
1428 
1429 
1430 static void set_pps_cred_machine_managed(struct hs20_osu_client *ctx, int id,
1431 					 xml_node_t *node)
1432 {
1433 	char *str = xml_node_get_text(ctx->xml, node);
1434 	if (str == NULL)
1435 		return;
1436 	wpa_printf(MSG_INFO, "- Credential/UsernamePassword/MachineManaged = %s",
1437 		   str);
1438 	/* not used within wpa_supplicant */
1439 	xml_node_get_text_free(ctx->xml, str);
1440 }
1441 
1442 
1443 static void set_pps_cred_soft_token_app(struct hs20_osu_client *ctx, int id,
1444 					xml_node_t *node)
1445 {
1446 	char *str = xml_node_get_text(ctx->xml, node);
1447 	if (str == NULL)
1448 		return;
1449 	wpa_printf(MSG_INFO, "- Credential/UsernamePassword/SoftTokenApp = %s",
1450 		   str);
1451 	/* not used within wpa_supplicant */
1452 	xml_node_get_text_free(ctx->xml, str);
1453 }
1454 
1455 
1456 static void set_pps_cred_able_to_share(struct hs20_osu_client *ctx, int id,
1457 				       xml_node_t *node)
1458 {
1459 	char *str = xml_node_get_text(ctx->xml, node);
1460 	if (str == NULL)
1461 		return;
1462 	wpa_printf(MSG_INFO, "- Credential/UsernamePassword/AbleToShare = %s",
1463 		   str);
1464 	/* not used within wpa_supplicant */
1465 	xml_node_get_text_free(ctx->xml, str);
1466 }
1467 
1468 
1469 static void set_pps_cred_eap_method_eap_type(struct hs20_osu_client *ctx,
1470 					     int id, xml_node_t *node)
1471 {
1472 	char *str = xml_node_get_text(ctx->xml, node);
1473 	int type;
1474 	const char *eap_method = NULL;
1475 
1476 	if (!str)
1477 		return;
1478 	wpa_printf(MSG_INFO,
1479 		   "- Credential/UsernamePassword/EAPMethod/EAPType = %s", str);
1480 	type = atoi(str);
1481 	switch (type) {
1482 	case EAP_TYPE_TLS:
1483 		eap_method = "TLS";
1484 		break;
1485 	case EAP_TYPE_TTLS:
1486 		eap_method = "TTLS";
1487 		break;
1488 	case EAP_TYPE_PEAP:
1489 		eap_method = "PEAP";
1490 		break;
1491 	case EAP_TYPE_PWD:
1492 		eap_method = "PWD";
1493 		break;
1494 	}
1495 	xml_node_get_text_free(ctx->xml, str);
1496 	if (!eap_method) {
1497 		wpa_printf(MSG_INFO, "Unknown EAPType value");
1498 		return;
1499 	}
1500 
1501 	if (set_cred(ctx->ifname, id, "eap", eap_method) < 0)
1502 		wpa_printf(MSG_INFO, "Failed to set cred eap");
1503 }
1504 
1505 
1506 static void set_pps_cred_eap_method_inner_method(struct hs20_osu_client *ctx,
1507 						 int id, xml_node_t *node)
1508 {
1509 	char *str = xml_node_get_text(ctx->xml, node);
1510 	const char *phase2 = NULL;
1511 
1512 	if (!str)
1513 		return;
1514 	wpa_printf(MSG_INFO,
1515 		   "- Credential/UsernamePassword/EAPMethod/InnerMethod = %s",
1516 		   str);
1517 	if (os_strcmp(str, "PAP") == 0)
1518 		phase2 = "auth=PAP";
1519 	else if (os_strcmp(str, "CHAP") == 0)
1520 		phase2 = "auth=CHAP";
1521 	else if (os_strcmp(str, "MS-CHAP") == 0)
1522 		phase2 = "auth=MSCHAP";
1523 	else if (os_strcmp(str, "MS-CHAP-V2") == 0)
1524 		phase2 = "auth=MSCHAPV2";
1525 	xml_node_get_text_free(ctx->xml, str);
1526 	if (!phase2) {
1527 		wpa_printf(MSG_INFO, "Unknown InnerMethod value");
1528 		return;
1529 	}
1530 
1531 	if (set_cred_quoted(ctx->ifname, id, "phase2", phase2) < 0)
1532 		wpa_printf(MSG_INFO, "Failed to set cred phase2");
1533 }
1534 
1535 
1536 static void set_pps_cred_eap_method(struct hs20_osu_client *ctx, int id,
1537 				    xml_node_t *node)
1538 {
1539 	xml_node_t *child;
1540 	const char *name;
1541 
1542 	wpa_printf(MSG_INFO, "- Credential/UsernamePassword/EAPMethod");
1543 
1544 	xml_node_for_each_child(ctx->xml, child, node) {
1545 		xml_node_for_each_check(ctx->xml, child);
1546 		name = xml_node_get_localname(ctx->xml, child);
1547 		if (os_strcasecmp(name, "EAPType") == 0)
1548 			set_pps_cred_eap_method_eap_type(ctx, id, child);
1549 		else if (os_strcasecmp(name, "InnerMethod") == 0)
1550 			set_pps_cred_eap_method_inner_method(ctx, id, child);
1551 		else
1552 			wpa_printf(MSG_INFO, "Unknown Credential/UsernamePassword/EAPMethod node '%s'",
1553 				   name);
1554 	}
1555 }
1556 
1557 
1558 static void set_pps_cred_username_password(struct hs20_osu_client *ctx, int id,
1559 					   xml_node_t *node)
1560 {
1561 	xml_node_t *child;
1562 	const char *name;
1563 
1564 	wpa_printf(MSG_INFO, "- Credential/UsernamePassword");
1565 
1566 	xml_node_for_each_child(ctx->xml, child, node) {
1567 		xml_node_for_each_check(ctx->xml, child);
1568 		name = xml_node_get_localname(ctx->xml, child);
1569 		if (os_strcasecmp(name, "Username") == 0)
1570 			set_pps_cred_username(ctx, id, child);
1571 		else if (os_strcasecmp(name, "Password") == 0)
1572 			set_pps_cred_password(ctx, id, child);
1573 		else if (os_strcasecmp(name, "MachineManaged") == 0)
1574 			set_pps_cred_machine_managed(ctx, id, child);
1575 		else if (os_strcasecmp(name, "SoftTokenApp") == 0)
1576 			set_pps_cred_soft_token_app(ctx, id, child);
1577 		else if (os_strcasecmp(name, "AbleToShare") == 0)
1578 			set_pps_cred_able_to_share(ctx, id, child);
1579 		else if (os_strcasecmp(name, "EAPMethod") == 0)
1580 			set_pps_cred_eap_method(ctx, id, child);
1581 		else
1582 			wpa_printf(MSG_INFO, "Unknown Credential/UsernamePassword node '%s'",
1583 				   name);
1584 	}
1585 }
1586 
1587 
1588 static void set_pps_cred_digital_cert(struct hs20_osu_client *ctx, int id,
1589 				      xml_node_t *node, const char *fqdn)
1590 {
1591 	char buf[200], dir[200];
1592 	int res;
1593 
1594 	wpa_printf(MSG_INFO, "- Credential/DigitalCertificate");
1595 
1596 	if (getcwd(dir, sizeof(dir)) == NULL)
1597 		return;
1598 
1599 	/* TODO: could build username from Subject of Subject AltName */
1600 	if (set_cred_quoted(ctx->ifname, id, "username", "cert") < 0) {
1601 		wpa_printf(MSG_INFO, "Failed to set username");
1602 	}
1603 
1604 	res = os_snprintf(buf, sizeof(buf), "%s/SP/%s/client-cert.pem", dir,
1605 			  fqdn);
1606 	if (os_snprintf_error(sizeof(buf), res))
1607 		return;
1608 	if (os_file_exists(buf)) {
1609 		if (set_cred_quoted(ctx->ifname, id, "client_cert", buf) < 0) {
1610 			wpa_printf(MSG_INFO, "Failed to set client_cert");
1611 		}
1612 	}
1613 
1614 	res = os_snprintf(buf, sizeof(buf), "%s/SP/%s/client-key.pem", dir,
1615 			  fqdn);
1616 	if (os_snprintf_error(sizeof(buf), res))
1617 		return;
1618 	if (os_file_exists(buf)) {
1619 		if (set_cred_quoted(ctx->ifname, id, "private_key", buf) < 0) {
1620 			wpa_printf(MSG_INFO, "Failed to set private_key");
1621 		}
1622 	}
1623 }
1624 
1625 
1626 static void set_pps_cred_realm(struct hs20_osu_client *ctx, int id,
1627 			       xml_node_t *node, const char *fqdn, int sim)
1628 {
1629 	char *str = xml_node_get_text(ctx->xml, node);
1630 	char buf[200], dir[200];
1631 	int res;
1632 
1633 	if (str == NULL)
1634 		return;
1635 
1636 	wpa_printf(MSG_INFO, "- Credential/Realm = %s", str);
1637 	if (set_cred_quoted(ctx->ifname, id, "realm", str) < 0)
1638 		wpa_printf(MSG_INFO, "Failed to set cred realm");
1639 	xml_node_get_text_free(ctx->xml, str);
1640 
1641 	if (sim)
1642 		return;
1643 
1644 	if (getcwd(dir, sizeof(dir)) == NULL)
1645 		return;
1646 	res = os_snprintf(buf, sizeof(buf), "%s/SP/%s/aaa-ca.pem", dir, fqdn);
1647 	if (os_snprintf_error(sizeof(buf), res))
1648 		return;
1649 	if (os_file_exists(buf)) {
1650 		if (set_cred_quoted(ctx->ifname, id, "ca_cert", buf) < 0) {
1651 			wpa_printf(MSG_INFO, "Failed to set CA cert");
1652 		}
1653 	}
1654 }
1655 
1656 
1657 static void set_pps_cred_check_aaa_cert_status(struct hs20_osu_client *ctx,
1658 					       int id, xml_node_t *node)
1659 {
1660 	char *str = xml_node_get_text(ctx->xml, node);
1661 
1662 	if (str == NULL)
1663 		return;
1664 
1665 	wpa_printf(MSG_INFO, "- Credential/CheckAAAServerCertStatus = %s", str);
1666 	if (os_strcasecmp(str, "true") == 0 &&
1667 	    set_cred(ctx->ifname, id, "ocsp", "2") < 0)
1668 		wpa_printf(MSG_INFO, "Failed to set cred ocsp");
1669 	xml_node_get_text_free(ctx->xml, str);
1670 }
1671 
1672 
1673 static void set_pps_cred_sim(struct hs20_osu_client *ctx, int id,
1674 			     xml_node_t *sim, xml_node_t *realm)
1675 {
1676 	xml_node_t *node;
1677 	char *imsi, *eaptype, *str, buf[20];
1678 	int type;
1679 	int mnc_len = 3;
1680 	size_t imsi_len;
1681 
1682 	node = get_node(ctx->xml, sim, "EAPType");
1683 	if (node == NULL) {
1684 		wpa_printf(MSG_INFO, "No SIM/EAPType node in credential");
1685 		return;
1686 	}
1687 	eaptype = xml_node_get_text(ctx->xml, node);
1688 	if (eaptype == NULL) {
1689 		wpa_printf(MSG_INFO, "Could not extract SIM/EAPType");
1690 		return;
1691 	}
1692 	wpa_printf(MSG_INFO, " - Credential/SIM/EAPType = %s", eaptype);
1693 	type = atoi(eaptype);
1694 	xml_node_get_text_free(ctx->xml, eaptype);
1695 
1696 	switch (type) {
1697 	case EAP_TYPE_SIM:
1698 		if (set_cred(ctx->ifname, id, "eap", "SIM") < 0)
1699 			wpa_printf(MSG_INFO, "Could not set eap=SIM");
1700 		break;
1701 	case EAP_TYPE_AKA:
1702 		if (set_cred(ctx->ifname, id, "eap", "AKA") < 0)
1703 			wpa_printf(MSG_INFO, "Could not set eap=SIM");
1704 		break;
1705 	case EAP_TYPE_AKA_PRIME:
1706 		if (set_cred(ctx->ifname, id, "eap", "AKA'") < 0)
1707 			wpa_printf(MSG_INFO, "Could not set eap=SIM");
1708 		break;
1709 	default:
1710 		wpa_printf(MSG_INFO, "Unsupported SIM/EAPType %d", type);
1711 		return;
1712 	}
1713 
1714 	node = get_node(ctx->xml, sim, "IMSI");
1715 	if (node == NULL) {
1716 		wpa_printf(MSG_INFO, "No SIM/IMSI node in credential");
1717 		return;
1718 	}
1719 	imsi = xml_node_get_text(ctx->xml, node);
1720 	if (imsi == NULL) {
1721 		wpa_printf(MSG_INFO, "Could not extract SIM/IMSI");
1722 		return;
1723 	}
1724 	wpa_printf(MSG_INFO, " - Credential/SIM/IMSI = %s", imsi);
1725 	imsi_len = os_strlen(imsi);
1726 	if (imsi_len < 7 || imsi_len + 2 > sizeof(buf)) {
1727 		wpa_printf(MSG_INFO, "Invalid IMSI length");
1728 		xml_node_get_text_free(ctx->xml, imsi);
1729 		return;
1730 	}
1731 
1732 	str = xml_node_get_text(ctx->xml, node);
1733 	if (str) {
1734 		char *pos;
1735 		pos = os_strstr(str, "mnc");
1736 		if (pos && os_strlen(pos) >= 6) {
1737 			if (os_strncmp(imsi + 3, pos + 3, 3) == 0)
1738 				mnc_len = 3;
1739 			else if (os_strncmp(imsi + 3, pos + 4, 2) == 0)
1740 				mnc_len = 2;
1741 		}
1742 		xml_node_get_text_free(ctx->xml, str);
1743 	}
1744 
1745 	os_memcpy(buf, imsi, 3 + mnc_len);
1746 	buf[3 + mnc_len] = '-';
1747 	os_strlcpy(buf + 3 + mnc_len + 1, imsi + 3 + mnc_len,
1748 		   sizeof(buf) - 3 - mnc_len - 1);
1749 
1750 	xml_node_get_text_free(ctx->xml, imsi);
1751 
1752 	if (set_cred_quoted(ctx->ifname, id, "imsi", buf) < 0)
1753 		wpa_printf(MSG_INFO, "Could not set IMSI");
1754 
1755 	if (set_cred_quoted(ctx->ifname, id, "milenage",
1756 			    "90dca4eda45b53cf0f12d7c9c3bc6a89:"
1757 			    "cb9cccc4b9258e6dca4760379fb82581:000000000123") <
1758 	    0)
1759 		wpa_printf(MSG_INFO, "Could not set Milenage parameters");
1760 }
1761 
1762 
1763 static void set_pps_cred_credential(struct hs20_osu_client *ctx, int id,
1764 				    xml_node_t *node, const char *fqdn)
1765 {
1766 	xml_node_t *child, *sim, *realm;
1767 	const char *name;
1768 
1769 	wpa_printf(MSG_INFO, "- Credential");
1770 
1771 	sim = get_node(ctx->xml, node, "SIM");
1772 	realm = get_node(ctx->xml, node, "Realm");
1773 
1774 	xml_node_for_each_child(ctx->xml, child, node) {
1775 		xml_node_for_each_check(ctx->xml, child);
1776 		name = xml_node_get_localname(ctx->xml, child);
1777 		if (os_strcasecmp(name, "CreationDate") == 0)
1778 			set_pps_cred_creation_date(ctx, id, child);
1779 		else if (os_strcasecmp(name, "ExpirationDate") == 0)
1780 			set_pps_cred_expiration_date(ctx, id, child);
1781 		else if (os_strcasecmp(name, "UsernamePassword") == 0)
1782 			set_pps_cred_username_password(ctx, id, child);
1783 		else if (os_strcasecmp(name, "DigitalCertificate") == 0)
1784 			set_pps_cred_digital_cert(ctx, id, child, fqdn);
1785 		else if (os_strcasecmp(name, "Realm") == 0)
1786 			set_pps_cred_realm(ctx, id, child, fqdn, sim != NULL);
1787 		else if (os_strcasecmp(name, "CheckAAAServerCertStatus") == 0)
1788 			set_pps_cred_check_aaa_cert_status(ctx, id, child);
1789 		else if (os_strcasecmp(name, "SIM") == 0)
1790 			set_pps_cred_sim(ctx, id, child, realm);
1791 		else
1792 			wpa_printf(MSG_INFO, "Unknown Credential node '%s'",
1793 				   name);
1794 	}
1795 }
1796 
1797 
1798 static void set_pps_credential(struct hs20_osu_client *ctx, int id,
1799 			       xml_node_t *cred, const char *fqdn)
1800 {
1801 	xml_node_t *child;
1802 	const char *name;
1803 
1804 	xml_node_for_each_child(ctx->xml, child, cred) {
1805 		xml_node_for_each_check(ctx->xml, child);
1806 		name = xml_node_get_localname(ctx->xml, child);
1807 		if (os_strcasecmp(name, "Policy") == 0)
1808 			set_pps_cred_policy(ctx, id, child);
1809 		else if (os_strcasecmp(name, "CredentialPriority") == 0)
1810 			set_pps_cred_priority(ctx, id, child);
1811 		else if (os_strcasecmp(name, "AAAServerTrustRoot") == 0)
1812 			set_pps_cred_aaa_server_trust_root(ctx, id, child);
1813 		else if (os_strcasecmp(name, "SubscriptionUpdate") == 0)
1814 			set_pps_cred_sub_update(ctx, id, child);
1815 		else if (os_strcasecmp(name, "HomeSP") == 0)
1816 			set_pps_cred_home_sp(ctx, id, child);
1817 		else if (os_strcasecmp(name, "SubscriptionParameters") == 0)
1818 			set_pps_cred_sub_params(ctx, id, child);
1819 		else if (os_strcasecmp(name, "Credential") == 0)
1820 			set_pps_cred_credential(ctx, id, child, fqdn);
1821 		else
1822 			wpa_printf(MSG_INFO, "Unknown credential node '%s'",
1823 				   name);
1824 	}
1825 }
1826 
1827 
1828 static void set_pps(struct hs20_osu_client *ctx, xml_node_t *pps,
1829 		    const char *fqdn)
1830 {
1831 	xml_node_t *child;
1832 	const char *name;
1833 	int id;
1834 	char *update_identifier = NULL;
1835 
1836 	/*
1837 	 * TODO: Could consider more complex mechanism that would remove
1838 	 * credentials only if there are changes in the information sent to
1839 	 * wpa_supplicant.
1840 	 */
1841 	remove_sp_creds(ctx, fqdn);
1842 
1843 	xml_node_for_each_child(ctx->xml, child, pps) {
1844 		xml_node_for_each_check(ctx->xml, child);
1845 		name = xml_node_get_localname(ctx->xml, child);
1846 		if (os_strcasecmp(name, "UpdateIdentifier") == 0) {
1847 			update_identifier = xml_node_get_text(ctx->xml, child);
1848 			if (update_identifier) {
1849 				wpa_printf(MSG_INFO, "- UpdateIdentifier = %s",
1850 					   update_identifier);
1851 				break;
1852 			}
1853 		}
1854 	}
1855 
1856 	xml_node_for_each_child(ctx->xml, child, pps) {
1857 		xml_node_for_each_check(ctx->xml, child);
1858 		name = xml_node_get_localname(ctx->xml, child);
1859 		if (os_strcasecmp(name, "UpdateIdentifier") == 0)
1860 			continue;
1861 		id = add_cred(ctx->ifname);
1862 		if (id < 0) {
1863 			wpa_printf(MSG_INFO, "Failed to add credential to wpa_supplicant");
1864 			write_summary(ctx, "Failed to add credential to wpa_supplicant");
1865 			break;
1866 		}
1867 		write_summary(ctx, "Add a credential to wpa_supplicant");
1868 		if (update_identifier &&
1869 		    set_cred(ctx->ifname, id, "update_identifier",
1870 			     update_identifier) < 0)
1871 			wpa_printf(MSG_INFO, "Failed to set update_identifier");
1872 		if (set_cred_quoted(ctx->ifname, id, "provisioning_sp", fqdn) <
1873 		    0)
1874 			wpa_printf(MSG_INFO, "Failed to set provisioning_sp");
1875 		wpa_printf(MSG_INFO, "credential localname: '%s'", name);
1876 		set_pps_credential(ctx, id, child, fqdn);
1877 		ctx->pps_cred_set = 1;
1878 	}
1879 
1880 	xml_node_get_text_free(ctx->xml, update_identifier);
1881 }
1882 
1883 
1884 void cmd_set_pps(struct hs20_osu_client *ctx, const char *pps_fname)
1885 {
1886 	xml_node_t *pps;
1887 	const char *fqdn;
1888 	char *fqdn_buf = NULL, *pos;
1889 
1890 	pps = node_from_file(ctx->xml, pps_fname);
1891 	if (pps == NULL) {
1892 		wpa_printf(MSG_INFO, "Could not read or parse '%s'", pps_fname);
1893 		return;
1894 	}
1895 
1896 	fqdn = os_strstr(pps_fname, "SP/");
1897 	if (fqdn) {
1898 		fqdn_buf = os_strdup(fqdn + 3);
1899 		if (fqdn_buf == NULL)
1900 			return;
1901 		pos = os_strchr(fqdn_buf, '/');
1902 		if (pos)
1903 			*pos = '\0';
1904 		fqdn = fqdn_buf;
1905 	} else
1906 		fqdn = "wi-fi.org";
1907 
1908 	wpa_printf(MSG_INFO, "Set PPS MO info to wpa_supplicant - SP FQDN %s",
1909 		   fqdn);
1910 	set_pps(ctx, pps, fqdn);
1911 
1912 	os_free(fqdn_buf);
1913 	xml_node_free(ctx->xml, pps);
1914 }
1915 
1916 
1917 static int cmd_get_fqdn(struct hs20_osu_client *ctx, const char *pps_fname)
1918 {
1919 	xml_node_t *pps, *node;
1920 	char *fqdn = NULL;
1921 
1922 	pps = node_from_file(ctx->xml, pps_fname);
1923 	if (pps == NULL) {
1924 		wpa_printf(MSG_INFO, "Could not read or parse '%s'", pps_fname);
1925 		return -1;
1926 	}
1927 
1928 	node = get_child_node(ctx->xml, pps, "HomeSP/FQDN");
1929 	if (node)
1930 		fqdn = xml_node_get_text(ctx->xml, node);
1931 
1932 	xml_node_free(ctx->xml, pps);
1933 
1934 	if (fqdn) {
1935 		FILE *f = fopen("pps-fqdn", "w");
1936 		if (f) {
1937 			fprintf(f, "%s", fqdn);
1938 			fclose(f);
1939 		}
1940 		xml_node_get_text_free(ctx->xml, fqdn);
1941 		return 0;
1942 	}
1943 
1944 	xml_node_get_text_free(ctx->xml, fqdn);
1945 	return -1;
1946 }
1947 
1948 
1949 static void cmd_to_tnds(struct hs20_osu_client *ctx, const char *in_fname,
1950 			const char *out_fname, const char *urn, int use_path)
1951 {
1952 	xml_node_t *mo, *node;
1953 
1954 	mo = node_from_file(ctx->xml, in_fname);
1955 	if (mo == NULL) {
1956 		wpa_printf(MSG_INFO, "Could not read or parse '%s'", in_fname);
1957 		return;
1958 	}
1959 
1960 	node = mo_to_tnds(ctx->xml, mo, use_path, urn, NULL);
1961 	if (node) {
1962 		node_to_file(ctx->xml, out_fname, node);
1963 		xml_node_free(ctx->xml, node);
1964 	}
1965 
1966 	xml_node_free(ctx->xml, mo);
1967 }
1968 
1969 
1970 static void cmd_from_tnds(struct hs20_osu_client *ctx, const char *in_fname,
1971 			  const char *out_fname)
1972 {
1973 	xml_node_t *tnds, *mo;
1974 
1975 	tnds = node_from_file(ctx->xml, in_fname);
1976 	if (tnds == NULL) {
1977 		wpa_printf(MSG_INFO, "Could not read or parse '%s'", in_fname);
1978 		return;
1979 	}
1980 
1981 	mo = tnds_to_mo(ctx->xml, tnds);
1982 	if (mo) {
1983 		node_to_file(ctx->xml, out_fname, mo);
1984 		xml_node_free(ctx->xml, mo);
1985 	}
1986 
1987 	xml_node_free(ctx->xml, tnds);
1988 }
1989 
1990 
1991 struct osu_icon {
1992 	int id;
1993 	char lang[4];
1994 	char mime_type[256];
1995 	char filename[256];
1996 };
1997 
1998 struct osu_data {
1999 	char bssid[20];
2000 	char url[256];
2001 	unsigned int methods;
2002 	char osu_ssid[33];
2003 	char osu_ssid2[33];
2004 	char osu_nai[256];
2005 	char osu_nai2[256];
2006 	struct osu_lang_text friendly_name[MAX_OSU_VALS];
2007 	size_t friendly_name_count;
2008 	struct osu_lang_text serv_desc[MAX_OSU_VALS];
2009 	size_t serv_desc_count;
2010 	struct osu_icon icon[MAX_OSU_VALS];
2011 	size_t icon_count;
2012 };
2013 
2014 
2015 static struct osu_data * parse_osu_providers(const char *fname, size_t *count)
2016 {
2017 	FILE *f;
2018 	char buf[1000];
2019 	struct osu_data *osu = NULL, *last = NULL;
2020 	size_t osu_count = 0;
2021 	char *pos, *end;
2022 	int res;
2023 
2024 	f = fopen(fname, "r");
2025 	if (f == NULL) {
2026 		wpa_printf(MSG_ERROR, "Could not open %s", fname);
2027 		return NULL;
2028 	}
2029 
2030 	while (fgets(buf, sizeof(buf), f)) {
2031 		pos = strchr(buf, '\n');
2032 		if (pos)
2033 			*pos = '\0';
2034 
2035 		if (strncmp(buf, "OSU-PROVIDER ", 13) == 0) {
2036 			last = realloc(osu, (osu_count + 1) * sizeof(*osu));
2037 			if (last == NULL)
2038 				break;
2039 			osu = last;
2040 			last = &osu[osu_count++];
2041 			memset(last, 0, sizeof(*last));
2042 			res = os_snprintf(last->bssid, sizeof(last->bssid),
2043 					  "%s", buf + 13);
2044 			if (os_snprintf_error(sizeof(last->bssid), res))
2045 				break;
2046 			continue;
2047 		}
2048 		if (!last)
2049 			continue;
2050 
2051 		if (strncmp(buf, "uri=", 4) == 0) {
2052 			res = os_snprintf(last->url, sizeof(last->url),
2053 					  "%s", buf + 4);
2054 			if (os_snprintf_error(sizeof(last->url), res))
2055 				break;
2056 			continue;
2057 		}
2058 
2059 		if (strncmp(buf, "methods=", 8) == 0) {
2060 			last->methods = strtol(buf + 8, NULL, 16);
2061 			continue;
2062 		}
2063 
2064 		if (strncmp(buf, "osu_ssid=", 9) == 0) {
2065 			res = os_snprintf(last->osu_ssid,
2066 					  sizeof(last->osu_ssid),
2067 					  "%s", buf + 9);
2068 			if (os_snprintf_error(sizeof(last->osu_ssid), res))
2069 				break;
2070 			continue;
2071 		}
2072 
2073 		if (strncmp(buf, "osu_ssid2=", 10) == 0) {
2074 			res = os_snprintf(last->osu_ssid2,
2075 					  sizeof(last->osu_ssid2),
2076 					  "%s", buf + 10);
2077 			if (os_snprintf_error(sizeof(last->osu_ssid2), res))
2078 				break;
2079 			continue;
2080 		}
2081 
2082 		if (os_strncmp(buf, "osu_nai=", 8) == 0) {
2083 			res = os_snprintf(last->osu_nai, sizeof(last->osu_nai),
2084 					  "%s", buf + 8);
2085 			if (os_snprintf_error(sizeof(last->osu_nai), res))
2086 				break;
2087 			continue;
2088 		}
2089 
2090 		if (os_strncmp(buf, "osu_nai2=", 9) == 0) {
2091 			res = os_snprintf(last->osu_nai2,
2092 					  sizeof(last->osu_nai2),
2093 					  "%s", buf + 9);
2094 			if (os_snprintf_error(sizeof(last->osu_nai2), res))
2095 				break;
2096 			continue;
2097 		}
2098 
2099 		if (strncmp(buf, "friendly_name=", 14) == 0) {
2100 			struct osu_lang_text *txt;
2101 			if (last->friendly_name_count == MAX_OSU_VALS)
2102 				continue;
2103 			pos = strchr(buf + 14, ':');
2104 			if (pos == NULL)
2105 				continue;
2106 			*pos++ = '\0';
2107 			txt = &last->friendly_name[last->friendly_name_count++];
2108 			res = os_snprintf(txt->lang, sizeof(txt->lang),
2109 					  "%s", buf + 14);
2110 			if (os_snprintf_error(sizeof(txt->lang), res))
2111 				break;
2112 			res = os_snprintf(txt->text, sizeof(txt->text),
2113 					  "%s", pos);
2114 			if (os_snprintf_error(sizeof(txt->text), res))
2115 				break;
2116 		}
2117 
2118 		if (strncmp(buf, "desc=", 5) == 0) {
2119 			struct osu_lang_text *txt;
2120 			if (last->serv_desc_count == MAX_OSU_VALS)
2121 				continue;
2122 			pos = strchr(buf + 5, ':');
2123 			if (pos == NULL)
2124 				continue;
2125 			*pos++ = '\0';
2126 			txt = &last->serv_desc[last->serv_desc_count++];
2127 			res = os_snprintf(txt->lang, sizeof(txt->lang),
2128 					  "%s", buf + 5);
2129 			if (os_snprintf_error(sizeof(txt->lang), res))
2130 				break;
2131 			res = os_snprintf(txt->text, sizeof(txt->text),
2132 					  "%s", pos);
2133 			if (os_snprintf_error(sizeof(txt->text), res))
2134 				break;
2135 		}
2136 
2137 		if (strncmp(buf, "icon=", 5) == 0) {
2138 			struct osu_icon *icon;
2139 			if (last->icon_count == MAX_OSU_VALS)
2140 				continue;
2141 			icon = &last->icon[last->icon_count++];
2142 			icon->id = atoi(buf + 5);
2143 			pos = strchr(buf, ':');
2144 			if (pos == NULL)
2145 				continue;
2146 			pos = strchr(pos + 1, ':');
2147 			if (pos == NULL)
2148 				continue;
2149 			pos = strchr(pos + 1, ':');
2150 			if (pos == NULL)
2151 				continue;
2152 			pos++;
2153 			end = strchr(pos, ':');
2154 			if (!end)
2155 				continue;
2156 			*end = '\0';
2157 			res = os_snprintf(icon->lang, sizeof(icon->lang),
2158 					  "%s", pos);
2159 			if (os_snprintf_error(sizeof(icon->lang), res))
2160 				break;
2161 			pos = end + 1;
2162 
2163 			end = strchr(pos, ':');
2164 			if (end)
2165 				*end = '\0';
2166 			res = os_snprintf(icon->mime_type,
2167 					  sizeof(icon->mime_type), "%s", pos);
2168 			if (os_snprintf_error(sizeof(icon->mime_type), res))
2169 				break;
2170 			if (!end)
2171 				continue;
2172 			pos = end + 1;
2173 
2174 			end = strchr(pos, ':');
2175 			if (end)
2176 				*end = '\0';
2177 			res = os_snprintf(icon->filename,
2178 					  sizeof(icon->filename), "%s", pos);
2179 			if (os_snprintf_error(sizeof(icon->filename), res))
2180 				break;
2181 			continue;
2182 		}
2183 	}
2184 
2185 	fclose(f);
2186 
2187 	*count = osu_count;
2188 	return osu;
2189 }
2190 
2191 
2192 static int osu_connect(struct hs20_osu_client *ctx, const char *bssid,
2193 		       const char *ssid, const char *ssid2, const char *url,
2194 		       unsigned int methods, int no_prod_assoc,
2195 		       const char *osu_nai, const char *osu_nai2)
2196 {
2197 	int id;
2198 	const char *ifname = ctx->ifname;
2199 	char buf[200];
2200 	struct wpa_ctrl *mon;
2201 	int res;
2202 
2203 	if (ssid2 && ssid2[0] == '\0')
2204 		ssid2 = NULL;
2205 
2206 	if (ctx->osu_ssid) {
2207 		if (os_strcmp(ssid, ctx->osu_ssid) == 0) {
2208 			wpa_printf(MSG_DEBUG,
2209 				   "Enforced OSU SSID matches ANQP info");
2210 			ssid2 = NULL;
2211 		} else if (ssid2 && os_strcmp(ssid2, ctx->osu_ssid) == 0) {
2212 			wpa_printf(MSG_DEBUG,
2213 				   "Enforced OSU SSID matches RSN[OSEN] info");
2214 			ssid = ssid2;
2215 		} else {
2216 			wpa_printf(MSG_INFO, "Enforced OSU SSID did not match");
2217 			write_summary(ctx, "Enforced OSU SSID did not match");
2218 			return -1;
2219 		}
2220 	}
2221 
2222 	id = add_network(ifname);
2223 	if (id < 0)
2224 		return -1;
2225 	if (set_network_quoted(ifname, id, "ssid", ssid) < 0)
2226 		return -1;
2227 	if (ssid2)
2228 		osu_nai = osu_nai2;
2229 	if (osu_nai && os_strlen(osu_nai) > 0) {
2230 		char dir[255], fname[300];
2231 		if (getcwd(dir, sizeof(dir)) == NULL)
2232 			return -1;
2233 		os_snprintf(fname, sizeof(fname), "%s/osu-ca.pem", dir);
2234 
2235 		if (ssid2 && set_network_quoted(ifname, id, "ssid", ssid2) < 0)
2236 			return -1;
2237 
2238 		if (set_network(ifname, id, "proto", "OSEN") < 0 ||
2239 		    set_network(ifname, id, "key_mgmt", "OSEN") < 0 ||
2240 		    set_network(ifname, id, "pairwise", "CCMP") < 0 ||
2241 		    set_network(ifname, id, "group", "GTK_NOT_USED CCMP") < 0 ||
2242 		    set_network(ifname, id, "eap", "WFA-UNAUTH-TLS") < 0 ||
2243 		    set_network(ifname, id, "ocsp", "2") < 0 ||
2244 		    set_network_quoted(ifname, id, "identity", osu_nai) < 0 ||
2245 		    set_network_quoted(ifname, id, "ca_cert", fname) < 0)
2246 			return -1;
2247 	} else if (ssid2) {
2248 		wpa_printf(MSG_INFO, "No OSU_NAI set for RSN[OSEN]");
2249 		write_summary(ctx, "No OSU_NAI set for RSN[OSEN]");
2250 		return -1;
2251 	} else {
2252 		if (set_network(ifname, id, "key_mgmt", "NONE") < 0)
2253 			return -1;
2254 	}
2255 
2256 	mon = open_wpa_mon(ifname);
2257 	if (mon == NULL)
2258 		return -1;
2259 
2260 	wpa_printf(MSG_INFO, "Associate with OSU SSID");
2261 	write_summary(ctx, "Associate with OSU SSID");
2262 	snprintf(buf, sizeof(buf), "SELECT_NETWORK %d", id);
2263 	if (wpa_command(ifname, buf) < 0)
2264 		return -1;
2265 
2266 	res = get_wpa_cli_event(mon, "CTRL-EVENT-CONNECTED",
2267 				buf, sizeof(buf));
2268 
2269 	wpa_ctrl_detach(mon);
2270 	wpa_ctrl_close(mon);
2271 
2272 	if (res < 0) {
2273 		wpa_printf(MSG_INFO, "Could not connect to OSU network");
2274 		write_summary(ctx, "Could not connect to OSU network");
2275 		wpa_printf(MSG_INFO, "Remove OSU network connection");
2276 		snprintf(buf, sizeof(buf), "REMOVE_NETWORK %d", id);
2277 		wpa_command(ifname, buf);
2278 		return -1;
2279 	}
2280 
2281 	write_summary(ctx, "Waiting for IP address for subscription registration");
2282 	if (wait_ip_addr(ifname, 15) < 0) {
2283 		wpa_printf(MSG_INFO, "Could not get IP address for WLAN - try connection anyway");
2284 	}
2285 
2286 	if (no_prod_assoc) {
2287 		if (res < 0)
2288 			return -1;
2289 		wpa_printf(MSG_INFO, "No production connection used for testing purposes");
2290 		write_summary(ctx, "No production connection used for testing purposes");
2291 		return 0;
2292 	}
2293 
2294 	ctx->no_reconnect = 1;
2295 	if (methods & 0x02) {
2296 		wpa_printf(MSG_DEBUG, "Calling cmd_prov from osu_connect");
2297 		res = cmd_prov(ctx, url);
2298 	} else if (methods & 0x01) {
2299 		wpa_printf(MSG_DEBUG,
2300 			   "Calling cmd_oma_dm_prov from osu_connect");
2301 		res = cmd_oma_dm_prov(ctx, url);
2302 	}
2303 
2304 	wpa_printf(MSG_INFO, "Remove OSU network connection");
2305 	write_summary(ctx, "Remove OSU network connection");
2306 	snprintf(buf, sizeof(buf), "REMOVE_NETWORK %d", id);
2307 	wpa_command(ifname, buf);
2308 
2309 	if (res < 0)
2310 		return -1;
2311 
2312 	wpa_printf(MSG_INFO, "Requesting reconnection with updated configuration");
2313 	write_summary(ctx, "Requesting reconnection with updated configuration");
2314 	if (wpa_command(ctx->ifname, "INTERWORKING_SELECT auto") < 0) {
2315 		wpa_printf(MSG_INFO, "Failed to request wpa_supplicant to reconnect");
2316 		write_summary(ctx, "Failed to request wpa_supplicant to reconnect");
2317 		return -1;
2318 	}
2319 
2320 	return 0;
2321 }
2322 
2323 
2324 static int cmd_osu_select(struct hs20_osu_client *ctx, const char *dir,
2325 			  int connect, int no_prod_assoc,
2326 			  const char *friendly_name)
2327 {
2328 	char fname[255];
2329 	FILE *f;
2330 	struct osu_data *osu = NULL, *last = NULL;
2331 	size_t osu_count = 0, i, j;
2332 	int ret;
2333 
2334 	write_summary(ctx, "OSU provider selection");
2335 
2336 	if (dir == NULL) {
2337 		wpa_printf(MSG_INFO, "Missing dir parameter to osu_select");
2338 		return -1;
2339 	}
2340 
2341 	snprintf(fname, sizeof(fname), "%s/osu-providers.txt", dir);
2342 	osu = parse_osu_providers(fname, &osu_count);
2343 	if (osu == NULL) {
2344 		wpa_printf(MSG_INFO, "Could not find any OSU providers from %s",
2345 			   fname);
2346 		write_result(ctx, "No OSU providers available");
2347 		return -1;
2348 	}
2349 
2350 	if (friendly_name) {
2351 		for (i = 0; i < osu_count; i++) {
2352 			last = &osu[i];
2353 			for (j = 0; j < last->friendly_name_count; j++) {
2354 				if (os_strcmp(last->friendly_name[j].text,
2355 					      friendly_name) == 0)
2356 					break;
2357 			}
2358 			if (j < last->friendly_name_count)
2359 				break;
2360 		}
2361 		if (i == osu_count) {
2362 			wpa_printf(MSG_INFO, "Requested operator friendly name '%s' not found in the list of available providers",
2363 				   friendly_name);
2364 			write_summary(ctx, "Requested operator friendly name '%s' not found in the list of available providers",
2365 				      friendly_name);
2366 			free(osu);
2367 			return -1;
2368 		}
2369 
2370 		wpa_printf(MSG_INFO, "OSU Provider selected based on requested operator friendly name '%s'",
2371 			   friendly_name);
2372 		write_summary(ctx, "OSU Provider selected based on requested operator friendly name '%s'",
2373 			      friendly_name);
2374 		ret = i + 1;
2375 		goto selected;
2376 	}
2377 
2378 	snprintf(fname, sizeof(fname), "%s/osu-providers.html", dir);
2379 	f = fopen(fname, "w");
2380 	if (f == NULL) {
2381 		wpa_printf(MSG_INFO, "Could not open %s", fname);
2382 		free(osu);
2383 		return -1;
2384 	}
2385 
2386 	fprintf(f, "<html><head>"
2387 		"<meta http-equiv=\"Content-type\" content=\"text/html; "
2388 		"charset=utf-8\"<title>Select service operator</title>"
2389 		"</head><body><h1>Select service operator</h1>\n");
2390 
2391 	if (osu_count == 0)
2392 		fprintf(f, "No online signup available\n");
2393 
2394 	for (i = 0; i < osu_count; i++) {
2395 		last = &osu[i];
2396 #ifdef ANDROID
2397 		fprintf(f, "<p>\n"
2398 			"<a href=\"http://localhost:12345/osu/%d\">"
2399 			"<table><tr><td>", (int) i + 1);
2400 #else /* ANDROID */
2401 		fprintf(f, "<p>\n"
2402 			"<a href=\"osu://%d\">"
2403 			"<table><tr><td>", (int) i + 1);
2404 #endif /* ANDROID */
2405 		for (j = 0; j < last->icon_count; j++) {
2406 			fprintf(f, "<img src=\"osu-icon-%d.%s\">\n",
2407 				last->icon[j].id,
2408 				strcasecmp(last->icon[j].mime_type,
2409 					   "image/png") == 0 ? "png" : "icon");
2410 		}
2411 		fprintf(f, "<td>");
2412 		for (j = 0; j < last->friendly_name_count; j++) {
2413 			fprintf(f, "<small>[%s]</small> %s<br>\n",
2414 				last->friendly_name[j].lang,
2415 				last->friendly_name[j].text);
2416 		}
2417 		fprintf(f, "<tr><td colspan=2>");
2418 		for (j = 0; j < last->serv_desc_count; j++) {
2419 			fprintf(f, "<small>[%s]</small> %s<br>\n",
2420 				last->serv_desc[j].lang,
2421 				last->serv_desc[j].text);
2422 		}
2423 		fprintf(f, "</table></a><br><small>BSSID: %s<br>\n"
2424 			"SSID: %s<br>\n",
2425 			last->bssid, last->osu_ssid);
2426 		if (last->osu_ssid2[0])
2427 			fprintf(f, "SSID2: %s<br>\n", last->osu_ssid2);
2428 		if (last->osu_nai[0])
2429 			fprintf(f, "NAI: %s<br>\n", last->osu_nai);
2430 		if (last->osu_nai2[0])
2431 			fprintf(f, "NAI2: %s<br>\n", last->osu_nai2);
2432 		fprintf(f, "URL: %s<br>\n"
2433 			"methods:%s%s<br>\n"
2434 			"</small></p>\n",
2435 			last->url,
2436 			last->methods & 0x01 ? " OMA-DM" : "",
2437 			last->methods & 0x02 ? " SOAP-XML-SPP" : "");
2438 	}
2439 
2440 	fprintf(f, "</body></html>\n");
2441 
2442 	fclose(f);
2443 
2444 	snprintf(fname, sizeof(fname), "file://%s/osu-providers.html", dir);
2445 	write_summary(ctx, "Start web browser with OSU provider selection page");
2446 	ret = hs20_web_browser(fname, 0);
2447 
2448 selected:
2449 	if (ret > 0 && (size_t) ret <= osu_count) {
2450 		char *data;
2451 		size_t data_len;
2452 
2453 		wpa_printf(MSG_INFO, "Selected OSU id=%d", ret);
2454 		last = &osu[ret - 1];
2455 		ret = 0;
2456 		wpa_printf(MSG_INFO, "BSSID: %s", last->bssid);
2457 		wpa_printf(MSG_INFO, "SSID: %s", last->osu_ssid);
2458 		if (last->osu_ssid2[0])
2459 			wpa_printf(MSG_INFO, "SSID2: %s", last->osu_ssid2);
2460 		wpa_printf(MSG_INFO, "URL: %s", last->url);
2461 		write_summary(ctx, "Selected OSU provider id=%d BSSID=%s SSID=%s URL=%s",
2462 			      ret, last->bssid, last->osu_ssid, last->url);
2463 
2464 		ctx->friendly_name_count = last->friendly_name_count;
2465 		for (j = 0; j < last->friendly_name_count; j++) {
2466 			wpa_printf(MSG_INFO, "FRIENDLY_NAME: [%s]%s",
2467 				   last->friendly_name[j].lang,
2468 				   last->friendly_name[j].text);
2469 			os_strlcpy(ctx->friendly_name[j].lang,
2470 				   last->friendly_name[j].lang,
2471 				   sizeof(ctx->friendly_name[j].lang));
2472 			os_strlcpy(ctx->friendly_name[j].text,
2473 				   last->friendly_name[j].text,
2474 				   sizeof(ctx->friendly_name[j].text));
2475 		}
2476 
2477 		ctx->icon_count = last->icon_count;
2478 		for (j = 0; j < last->icon_count; j++) {
2479 			char fname[256];
2480 
2481 			os_snprintf(fname, sizeof(fname), "%s/osu-icon-%d.%s",
2482 				    dir, last->icon[j].id,
2483 				    strcasecmp(last->icon[j].mime_type,
2484 					       "image/png") == 0 ?
2485 				    "png" : "icon");
2486 			wpa_printf(MSG_INFO, "ICON: %s (%s)",
2487 				   fname, last->icon[j].filename);
2488 			os_strlcpy(ctx->icon_filename[j],
2489 				   last->icon[j].filename,
2490 				   sizeof(ctx->icon_filename[j]));
2491 
2492 			data = os_readfile(fname, &data_len);
2493 			if (data) {
2494 				sha256_vector(1, (const u8 **) &data, &data_len,
2495 					      ctx->icon_hash[j]);
2496 				os_free(data);
2497 			}
2498 		}
2499 
2500 		if (connect == 2) {
2501 			if (last->methods & 0x02) {
2502 				wpa_printf(MSG_DEBUG,
2503 					   "Calling cmd_prov from cmd_osu_select");
2504 				ret = cmd_prov(ctx, last->url);
2505 			} else if (last->methods & 0x01) {
2506 				wpa_printf(MSG_DEBUG,
2507 					   "Calling cmd_oma_dm_prov from cmd_osu_select");
2508 				ret = cmd_oma_dm_prov(ctx, last->url);
2509 			} else {
2510 				wpa_printf(MSG_DEBUG,
2511 					   "No supported OSU provisioning method");
2512 				ret = -1;
2513 			}
2514 		} else if (connect) {
2515 			ret = osu_connect(ctx, last->bssid, last->osu_ssid,
2516 					  last->osu_ssid2,
2517 					  last->url, last->methods,
2518 					  no_prod_assoc, last->osu_nai,
2519 					  last->osu_nai2);
2520 		}
2521 	} else
2522 		ret = -1;
2523 
2524 	free(osu);
2525 
2526 	return ret;
2527 }
2528 
2529 
2530 static int cmd_signup(struct hs20_osu_client *ctx, int no_prod_assoc,
2531 		      const char *friendly_name)
2532 {
2533 	char dir[255];
2534 	char fname[300], buf[400];
2535 	struct wpa_ctrl *mon;
2536 	const char *ifname;
2537 	int res;
2538 
2539 	ifname = ctx->ifname;
2540 
2541 	if (getcwd(dir, sizeof(dir)) == NULL)
2542 		return -1;
2543 
2544 	snprintf(fname, sizeof(fname), "%s/osu-info", dir);
2545 	if (mkdir(fname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH) < 0 &&
2546 	    errno != EEXIST) {
2547 		wpa_printf(MSG_INFO, "mkdir(%s) failed: %s",
2548 			   fname, strerror(errno));
2549 		return -1;
2550 	}
2551 
2552 	android_update_permission(fname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
2553 
2554 	snprintf(buf, sizeof(buf), "SET osu_dir %s", fname);
2555 	if (wpa_command(ifname, buf) < 0) {
2556 		wpa_printf(MSG_INFO, "Failed to configure osu_dir to wpa_supplicant");
2557 		return -1;
2558 	}
2559 
2560 	mon = open_wpa_mon(ifname);
2561 	if (mon == NULL)
2562 		return -1;
2563 
2564 	wpa_printf(MSG_INFO, "Starting OSU fetch");
2565 	write_summary(ctx, "Starting OSU provider information fetch");
2566 	if (wpa_command(ifname, "FETCH_OSU") < 0) {
2567 		wpa_printf(MSG_INFO, "Could not start OSU fetch");
2568 		wpa_ctrl_detach(mon);
2569 		wpa_ctrl_close(mon);
2570 		return -1;
2571 	}
2572 	res = get_wpa_cli_event(mon, "OSU provider fetch completed",
2573 				buf, sizeof(buf));
2574 
2575 	wpa_ctrl_detach(mon);
2576 	wpa_ctrl_close(mon);
2577 
2578 	if (res < 0) {
2579 		wpa_printf(MSG_INFO, "OSU fetch did not complete");
2580 		write_summary(ctx, "OSU fetch did not complete");
2581 		return -1;
2582 	}
2583 	wpa_printf(MSG_INFO, "OSU provider fetch completed");
2584 
2585 	return cmd_osu_select(ctx, fname, 1, no_prod_assoc, friendly_name);
2586 }
2587 
2588 
2589 static int cmd_sub_rem(struct hs20_osu_client *ctx, const char *address,
2590 		       const char *pps_fname, const char *ca_fname)
2591 {
2592 	xml_node_t *pps, *node;
2593 	char pps_fname_buf[300];
2594 	char ca_fname_buf[200];
2595 	char *cred_username = NULL;
2596 	char *cred_password = NULL;
2597 	char *sub_rem_uri = NULL;
2598 	char client_cert_buf[200];
2599 	char *client_cert = NULL;
2600 	char client_key_buf[200];
2601 	char *client_key = NULL;
2602 	int spp;
2603 
2604 	wpa_printf(MSG_INFO, "Subscription remediation requested with Server URL: %s",
2605 		   address);
2606 
2607 	if (!pps_fname) {
2608 		char buf[256];
2609 		wpa_printf(MSG_INFO, "Determining PPS file based on Home SP information");
2610 		if (os_strncmp(address, "fqdn=", 5) == 0) {
2611 			wpa_printf(MSG_INFO, "Use requested FQDN from command line");
2612 			os_snprintf(buf, sizeof(buf), "%s", address + 5);
2613 			address = NULL;
2614 		} else if (get_wpa_status(ctx->ifname, "provisioning_sp", buf,
2615 					  sizeof(buf)) < 0) {
2616 			wpa_printf(MSG_INFO, "Could not get provisioning Home SP FQDN from wpa_supplicant");
2617 			return -1;
2618 		}
2619 		os_free(ctx->fqdn);
2620 		ctx->fqdn = os_strdup(buf);
2621 		if (ctx->fqdn == NULL)
2622 			return -1;
2623 		wpa_printf(MSG_INFO, "Home SP FQDN for current credential: %s",
2624 			   buf);
2625 		os_snprintf(pps_fname_buf, sizeof(pps_fname_buf),
2626 			    "SP/%s/pps.xml", ctx->fqdn);
2627 		pps_fname = pps_fname_buf;
2628 
2629 		os_snprintf(ca_fname_buf, sizeof(ca_fname_buf), "SP/%s/ca.pem",
2630 			    ctx->fqdn);
2631 		ca_fname = ca_fname_buf;
2632 	}
2633 
2634 	if (!os_file_exists(pps_fname)) {
2635 		wpa_printf(MSG_INFO, "PPS file '%s' does not exist or is not accessible",
2636 			   pps_fname);
2637 		return -1;
2638 	}
2639 	wpa_printf(MSG_INFO, "Using PPS file: %s", pps_fname);
2640 
2641 	if (ca_fname && !os_file_exists(ca_fname)) {
2642 		wpa_printf(MSG_INFO, "CA file '%s' does not exist or is not accessible",
2643 			   ca_fname);
2644 		return -1;
2645 	}
2646 	wpa_printf(MSG_INFO, "Using server trust root: %s", ca_fname);
2647 	ctx->ca_fname = ca_fname;
2648 
2649 	pps = node_from_file(ctx->xml, pps_fname);
2650 	if (pps == NULL) {
2651 		wpa_printf(MSG_INFO, "Could not read PPS MO");
2652 		return -1;
2653 	}
2654 
2655 	if (!ctx->fqdn) {
2656 		char *tmp;
2657 		node = get_child_node(ctx->xml, pps, "HomeSP/FQDN");
2658 		if (node == NULL) {
2659 			wpa_printf(MSG_INFO, "No HomeSP/FQDN found from PPS");
2660 			return -1;
2661 		}
2662 		tmp = xml_node_get_text(ctx->xml, node);
2663 		if (tmp == NULL) {
2664 			wpa_printf(MSG_INFO, "No HomeSP/FQDN text found from PPS");
2665 			return -1;
2666 		}
2667 		ctx->fqdn = os_strdup(tmp);
2668 		xml_node_get_text_free(ctx->xml, tmp);
2669 		if (!ctx->fqdn) {
2670 			wpa_printf(MSG_INFO, "No FQDN known");
2671 			return -1;
2672 		}
2673 	}
2674 
2675 	node = get_child_node(ctx->xml, pps,
2676 			      "SubscriptionUpdate/UpdateMethod");
2677 	if (node) {
2678 		char *tmp;
2679 		tmp = xml_node_get_text(ctx->xml, node);
2680 		if (tmp && os_strcasecmp(tmp, "OMA-DM-ClientInitiated") == 0)
2681 			spp = 0;
2682 		else
2683 			spp = 1;
2684 	} else {
2685 		wpa_printf(MSG_INFO, "No UpdateMethod specified - assume SPP");
2686 		spp = 1;
2687 	}
2688 
2689 	get_user_pw(ctx, pps, "SubscriptionUpdate/UsernamePassword",
2690 		    &cred_username, &cred_password);
2691 	if (cred_username)
2692 		wpa_printf(MSG_INFO, "Using username: %s", cred_username);
2693 	if (cred_password)
2694 		wpa_printf(MSG_DEBUG, "Using password: %s", cred_password);
2695 
2696 	if (cred_username == NULL && cred_password == NULL &&
2697 	    get_child_node(ctx->xml, pps, "Credential/DigitalCertificate")) {
2698 		wpa_printf(MSG_INFO, "Using client certificate");
2699 		os_snprintf(client_cert_buf, sizeof(client_cert_buf),
2700 			    "SP/%s/client-cert.pem", ctx->fqdn);
2701 		client_cert = client_cert_buf;
2702 		os_snprintf(client_key_buf, sizeof(client_key_buf),
2703 			    "SP/%s/client-key.pem", ctx->fqdn);
2704 		client_key = client_key_buf;
2705 		ctx->client_cert_present = 1;
2706 	}
2707 
2708 	node = get_child_node(ctx->xml, pps, "SubscriptionUpdate/URI");
2709 	if (node) {
2710 		sub_rem_uri = xml_node_get_text(ctx->xml, node);
2711 		if (sub_rem_uri &&
2712 		    (!address || os_strcmp(address, sub_rem_uri) != 0)) {
2713 			wpa_printf(MSG_INFO, "Override sub rem URI based on PPS: %s",
2714 				   sub_rem_uri);
2715 			address = sub_rem_uri;
2716 		}
2717 	}
2718 	if (!address) {
2719 		wpa_printf(MSG_INFO, "Server URL not known");
2720 		return -1;
2721 	}
2722 
2723 	write_summary(ctx, "Wait for IP address for subscriptiom remediation");
2724 	wpa_printf(MSG_INFO, "Wait for IP address before starting subscription remediation");
2725 
2726 	if (wait_ip_addr(ctx->ifname, 15) < 0) {
2727 		wpa_printf(MSG_INFO, "Could not get IP address for WLAN - try connection anyway");
2728 	}
2729 
2730 	if (spp)
2731 		spp_sub_rem(ctx, address, pps_fname,
2732 			    client_cert, client_key,
2733 			    cred_username, cred_password, pps);
2734 	else
2735 		oma_dm_sub_rem(ctx, address, pps_fname,
2736 			       client_cert, client_key,
2737 			       cred_username, cred_password, pps);
2738 
2739 	xml_node_get_text_free(ctx->xml, sub_rem_uri);
2740 	xml_node_get_text_free(ctx->xml, cred_username);
2741 	str_clear_free(cred_password);
2742 	xml_node_free(ctx->xml, pps);
2743 	return 0;
2744 }
2745 
2746 
2747 static int cmd_pol_upd(struct hs20_osu_client *ctx, const char *address,
2748 		       const char *pps_fname, const char *ca_fname)
2749 {
2750 	xml_node_t *pps;
2751 	xml_node_t *node;
2752 	char pps_fname_buf[300];
2753 	char ca_fname_buf[200];
2754 	char *uri = NULL;
2755 	char *cred_username = NULL;
2756 	char *cred_password = NULL;
2757 	char client_cert_buf[200];
2758 	char *client_cert = NULL;
2759 	char client_key_buf[200];
2760 	char *client_key = NULL;
2761 	int spp;
2762 
2763 	wpa_printf(MSG_INFO, "Policy update requested");
2764 
2765 	if (!pps_fname) {
2766 		char buf[256];
2767 		int res;
2768 
2769 		wpa_printf(MSG_INFO, "Determining PPS file based on Home SP information");
2770 		if (address && os_strncmp(address, "fqdn=", 5) == 0) {
2771 			wpa_printf(MSG_INFO, "Use requested FQDN from command line");
2772 			os_snprintf(buf, sizeof(buf), "%s", address + 5);
2773 			address = NULL;
2774 		} else if (get_wpa_status(ctx->ifname, "provisioning_sp", buf,
2775 					  sizeof(buf)) < 0) {
2776 			wpa_printf(MSG_INFO, "Could not get provisioning Home SP FQDN from wpa_supplicant");
2777 			return -1;
2778 		}
2779 		os_free(ctx->fqdn);
2780 		ctx->fqdn = os_strdup(buf);
2781 		if (ctx->fqdn == NULL)
2782 			return -1;
2783 		wpa_printf(MSG_INFO, "Home SP FQDN for current credential: %s",
2784 			   buf);
2785 		os_snprintf(pps_fname_buf, sizeof(pps_fname_buf),
2786 			    "SP/%s/pps.xml", ctx->fqdn);
2787 		pps_fname = pps_fname_buf;
2788 
2789 		res = os_snprintf(ca_fname_buf, sizeof(ca_fname_buf),
2790 				  "SP/%s/ca.pem", buf);
2791 		if (os_snprintf_error(sizeof(ca_fname_buf), res)) {
2792 			os_free(ctx->fqdn);
2793 			ctx->fqdn = NULL;
2794 			return -1;
2795 		}
2796 		ca_fname = ca_fname_buf;
2797 	}
2798 
2799 	if (!os_file_exists(pps_fname)) {
2800 		wpa_printf(MSG_INFO, "PPS file '%s' does not exist or is not accessible",
2801 			   pps_fname);
2802 		return -1;
2803 	}
2804 	wpa_printf(MSG_INFO, "Using PPS file: %s", pps_fname);
2805 
2806 	if (ca_fname && !os_file_exists(ca_fname)) {
2807 		wpa_printf(MSG_INFO, "CA file '%s' does not exist or is not accessible",
2808 			   ca_fname);
2809 		return -1;
2810 	}
2811 	wpa_printf(MSG_INFO, "Using server trust root: %s", ca_fname);
2812 	ctx->ca_fname = ca_fname;
2813 
2814 	pps = node_from_file(ctx->xml, pps_fname);
2815 	if (pps == NULL) {
2816 		wpa_printf(MSG_INFO, "Could not read PPS MO");
2817 		return -1;
2818 	}
2819 
2820 	if (!ctx->fqdn) {
2821 		char *tmp;
2822 		node = get_child_node(ctx->xml, pps, "HomeSP/FQDN");
2823 		if (node == NULL) {
2824 			wpa_printf(MSG_INFO, "No HomeSP/FQDN found from PPS");
2825 			return -1;
2826 		}
2827 		tmp = xml_node_get_text(ctx->xml, node);
2828 		if (tmp == NULL) {
2829 			wpa_printf(MSG_INFO, "No HomeSP/FQDN text found from PPS");
2830 			return -1;
2831 		}
2832 		ctx->fqdn = os_strdup(tmp);
2833 		xml_node_get_text_free(ctx->xml, tmp);
2834 		if (!ctx->fqdn) {
2835 			wpa_printf(MSG_INFO, "No FQDN known");
2836 			return -1;
2837 		}
2838 	}
2839 
2840 	node = get_child_node(ctx->xml, pps,
2841 			      "Policy/PolicyUpdate/UpdateMethod");
2842 	if (node) {
2843 		char *tmp;
2844 		tmp = xml_node_get_text(ctx->xml, node);
2845 		if (tmp && os_strcasecmp(tmp, "OMA-DM-ClientInitiated") == 0)
2846 			spp = 0;
2847 		else
2848 			spp = 1;
2849 	} else {
2850 		wpa_printf(MSG_INFO, "No UpdateMethod specified - assume SPP");
2851 		spp = 1;
2852 	}
2853 
2854 	get_user_pw(ctx, pps, "Policy/PolicyUpdate/UsernamePassword",
2855 		    &cred_username, &cred_password);
2856 	if (cred_username)
2857 		wpa_printf(MSG_INFO, "Using username: %s", cred_username);
2858 	if (cred_password)
2859 		wpa_printf(MSG_DEBUG, "Using password: %s", cred_password);
2860 
2861 	if (cred_username == NULL && cred_password == NULL &&
2862 	    get_child_node(ctx->xml, pps, "Credential/DigitalCertificate")) {
2863 		wpa_printf(MSG_INFO, "Using client certificate");
2864 		os_snprintf(client_cert_buf, sizeof(client_cert_buf),
2865 			    "SP/%s/client-cert.pem", ctx->fqdn);
2866 		client_cert = client_cert_buf;
2867 		os_snprintf(client_key_buf, sizeof(client_key_buf),
2868 			    "SP/%s/client-key.pem", ctx->fqdn);
2869 		client_key = client_key_buf;
2870 	}
2871 
2872 	if (!address) {
2873 		node = get_child_node(ctx->xml, pps, "Policy/PolicyUpdate/URI");
2874 		if (node) {
2875 			uri = xml_node_get_text(ctx->xml, node);
2876 			wpa_printf(MSG_INFO, "URI based on PPS: %s", uri);
2877 			address = uri;
2878 		}
2879 	}
2880 	if (!address) {
2881 		wpa_printf(MSG_INFO, "Server URL not known");
2882 		return -1;
2883 	}
2884 
2885 	if (spp)
2886 		spp_pol_upd(ctx, address, pps_fname,
2887 			    client_cert, client_key,
2888 			    cred_username, cred_password, pps);
2889 	else
2890 		oma_dm_pol_upd(ctx, address, pps_fname,
2891 			       client_cert, client_key,
2892 			       cred_username, cred_password, pps);
2893 
2894 	xml_node_get_text_free(ctx->xml, uri);
2895 	xml_node_get_text_free(ctx->xml, cred_username);
2896 	str_clear_free(cred_password);
2897 	xml_node_free(ctx->xml, pps);
2898 
2899 	return 0;
2900 }
2901 
2902 
2903 static char * get_hostname(const char *url)
2904 {
2905 	const char *pos, *end, *end2;
2906 	char *ret;
2907 
2908 	if (url == NULL)
2909 		return NULL;
2910 
2911 	pos = os_strchr(url, '/');
2912 	if (pos == NULL)
2913 		return NULL;
2914 	pos++;
2915 	if (*pos != '/')
2916 		return NULL;
2917 	pos++;
2918 
2919 	end = os_strchr(pos, '/');
2920 	end2 = os_strchr(pos, ':');
2921 	if ((end && end2 && end2 < end) || (!end && end2))
2922 		end = end2;
2923 	if (end)
2924 		end--;
2925 	else {
2926 		end = pos;
2927 		while (*end)
2928 			end++;
2929 		if (end > pos)
2930 			end--;
2931 	}
2932 
2933 	ret = os_malloc(end - pos + 2);
2934 	if (ret == NULL)
2935 		return NULL;
2936 
2937 	os_memcpy(ret, pos, end - pos + 1);
2938 	ret[end - pos + 1] = '\0';
2939 
2940 	return ret;
2941 }
2942 
2943 
2944 static int osu_cert_cb(void *_ctx, struct http_cert *cert)
2945 {
2946 	struct hs20_osu_client *ctx = _ctx;
2947 	size_t i, j;
2948 	int found;
2949 	char *host = NULL;
2950 
2951 	wpa_printf(MSG_INFO, "osu_cert_cb(osu_cert_validation=%d, url=%s server_url=%s)",
2952 		   !ctx->no_osu_cert_validation, cert->url ? cert->url : "N/A",
2953 		   ctx->server_url);
2954 
2955 	if (ctx->no_osu_cert_validation && cert->url)
2956 		host = get_hostname(cert->url);
2957 	else
2958 		host = get_hostname(ctx->server_url);
2959 
2960 	if (!ctx->no_osu_cert_validation) {
2961 		for (i = 0; i < ctx->server_dnsname_count; i++)
2962 			os_free(ctx->server_dnsname[i]);
2963 		os_free(ctx->server_dnsname);
2964 		ctx->server_dnsname = os_calloc(cert->num_dnsname,
2965 						sizeof(char *));
2966 		ctx->server_dnsname_count = 0;
2967 	}
2968 
2969 	found = 0;
2970 	for (i = 0; i < cert->num_dnsname; i++) {
2971 		if (!ctx->no_osu_cert_validation && ctx->server_dnsname) {
2972 			ctx->server_dnsname[ctx->server_dnsname_count] =
2973 				os_strdup(cert->dnsname[i]);
2974 			if (ctx->server_dnsname[ctx->server_dnsname_count])
2975 				ctx->server_dnsname_count++;
2976 		}
2977 		if (host && os_strcasecmp(host, cert->dnsname[i]) == 0)
2978 			found = 1;
2979 		wpa_printf(MSG_INFO, "dNSName '%s'", cert->dnsname[i]);
2980 	}
2981 
2982 	if (host && !found) {
2983 		wpa_printf(MSG_INFO, "Server name from URL (%s) did not match any dNSName - abort connection",
2984 			   host);
2985 		write_result(ctx, "Server name from URL (%s) did not match any dNSName - abort connection",
2986 			     host);
2987 		os_free(host);
2988 		return -1;
2989 	}
2990 
2991 	os_free(host);
2992 
2993 	for (i = 0; i < cert->num_othername; i++) {
2994 		if (os_strcmp(cert->othername[i].oid,
2995 			      "1.3.6.1.4.1.40808.1.1.1") == 0) {
2996 			wpa_hexdump_ascii(MSG_INFO,
2997 					  "id-wfa-hotspot-friendlyName",
2998 					  cert->othername[i].data,
2999 					  cert->othername[i].len);
3000 		}
3001 	}
3002 
3003 	for (j = 0; !ctx->no_osu_cert_validation &&
3004 		     j < ctx->friendly_name_count; j++) {
3005 		int found = 0;
3006 		for (i = 0; i < cert->num_othername; i++) {
3007 			if (os_strcmp(cert->othername[i].oid,
3008 				      "1.3.6.1.4.1.40808.1.1.1") != 0)
3009 				continue;
3010 			if (cert->othername[i].len < 3)
3011 				continue;
3012 			if (os_strncasecmp((char *) cert->othername[i].data,
3013 					   ctx->friendly_name[j].lang, 3) != 0)
3014 				continue;
3015 			if (os_strncmp((char *) cert->othername[i].data + 3,
3016 				       ctx->friendly_name[j].text,
3017 				       cert->othername[i].len - 3) == 0) {
3018 				found = 1;
3019 				break;
3020 			}
3021 		}
3022 
3023 		if (!found) {
3024 			wpa_printf(MSG_INFO, "No friendly name match found for '[%s]%s'",
3025 				   ctx->friendly_name[j].lang,
3026 				   ctx->friendly_name[j].text);
3027 			write_result(ctx, "No friendly name match found for '[%s]%s'",
3028 				     ctx->friendly_name[j].lang,
3029 				     ctx->friendly_name[j].text);
3030 			return -1;
3031 		}
3032 	}
3033 
3034 	for (i = 0; i < cert->num_logo; i++) {
3035 		struct http_logo *logo = &cert->logo[i];
3036 
3037 		wpa_printf(MSG_INFO, "logo hash alg %s uri '%s'",
3038 			   logo->alg_oid, logo->uri);
3039 		wpa_hexdump_ascii(MSG_INFO, "hashValue",
3040 				  logo->hash, logo->hash_len);
3041 	}
3042 
3043 	for (j = 0; !ctx->no_osu_cert_validation && j < ctx->icon_count; j++) {
3044 		int found = 0;
3045 		char *name = ctx->icon_filename[j];
3046 		size_t name_len = os_strlen(name);
3047 
3048 		wpa_printf(MSG_INFO,
3049 			   "[%zu] Looking for icon file name '%s' match",
3050 			   j, name);
3051 		for (i = 0; i < cert->num_logo; i++) {
3052 			struct http_logo *logo = &cert->logo[i];
3053 			size_t uri_len = os_strlen(logo->uri);
3054 			char *pos;
3055 
3056 			wpa_printf(MSG_INFO,
3057 				   "[%zu] Comparing to '%s' uri_len=%d name_len=%d",
3058 				   i, logo->uri, (int) uri_len, (int) name_len);
3059 			if (uri_len < 1 + name_len) {
3060 				wpa_printf(MSG_INFO, "URI Length is too short");
3061 				continue;
3062 			}
3063 			pos = &logo->uri[uri_len - name_len - 1];
3064 			if (*pos != '/')
3065 				continue;
3066 			pos++;
3067 			if (os_strcmp(pos, name) == 0) {
3068 				found = 1;
3069 				break;
3070 			}
3071 		}
3072 
3073 		if (!found) {
3074 			wpa_printf(MSG_INFO, "No icon filename match found for '%s'",
3075 				   name);
3076 			write_result(ctx,
3077 				     "No icon filename match found for '%s'",
3078 				     name);
3079 			return -1;
3080 		}
3081 	}
3082 
3083 	for (j = 0; !ctx->no_osu_cert_validation && j < ctx->icon_count; j++) {
3084 		int found = 0;
3085 
3086 		for (i = 0; i < cert->num_logo; i++) {
3087 			struct http_logo *logo = &cert->logo[i];
3088 
3089 			if (logo->hash_len != 32) {
3090 				wpa_printf(MSG_INFO,
3091 					   "[%zu][%zu] Icon hash length invalid (should be 32): %d",
3092 					   j, i, (int) logo->hash_len);
3093 				continue;
3094 			}
3095 			if (os_memcmp(logo->hash, ctx->icon_hash[j], 32) == 0) {
3096 				found = 1;
3097 				break;
3098 			}
3099 
3100 			wpa_printf(MSG_DEBUG,
3101 				   "[%zu][%zu] Icon hash did not match", j, i);
3102 			wpa_hexdump_ascii(MSG_DEBUG, "logo->hash",
3103 					  logo->hash, 32);
3104 			wpa_hexdump_ascii(MSG_DEBUG, "ctx->icon_hash[j]",
3105 					  ctx->icon_hash[j], 32);
3106 		}
3107 
3108 		if (!found) {
3109 			wpa_printf(MSG_INFO,
3110 				   "No icon hash match (by hash) found");
3111 			write_result(ctx,
3112 				     "No icon hash match (by hash) found");
3113 			return -1;
3114 		}
3115 	}
3116 
3117 	return 0;
3118 }
3119 
3120 
3121 static int init_ctx(struct hs20_osu_client *ctx)
3122 {
3123 	xml_node_t *devinfo, *devid;
3124 
3125 	os_memset(ctx, 0, sizeof(*ctx));
3126 	ctx->ifname = "wlan0";
3127 	ctx->xml = xml_node_init_ctx(ctx, NULL);
3128 	if (ctx->xml == NULL)
3129 		return -1;
3130 
3131 	devinfo = node_from_file(ctx->xml, "devinfo.xml");
3132 	if (devinfo) {
3133 		devid = get_node(ctx->xml, devinfo, "DevId");
3134 		if (devid) {
3135 			char *tmp = xml_node_get_text(ctx->xml, devid);
3136 
3137 			if (tmp) {
3138 				ctx->devid = os_strdup(tmp);
3139 				xml_node_get_text_free(ctx->xml, tmp);
3140 			}
3141 		}
3142 		xml_node_free(ctx->xml, devinfo);
3143 	}
3144 
3145 	ctx->http = http_init_ctx(ctx, ctx->xml);
3146 	if (ctx->http == NULL) {
3147 		xml_node_deinit_ctx(ctx->xml);
3148 		return -1;
3149 	}
3150 	http_ocsp_set(ctx->http, 2);
3151 	http_set_cert_cb(ctx->http, osu_cert_cb, ctx);
3152 
3153 	return 0;
3154 }
3155 
3156 
3157 static void deinit_ctx(struct hs20_osu_client *ctx)
3158 {
3159 	size_t i;
3160 
3161 	http_deinit_ctx(ctx->http);
3162 	xml_node_deinit_ctx(ctx->xml);
3163 	os_free(ctx->fqdn);
3164 	os_free(ctx->server_url);
3165 	os_free(ctx->devid);
3166 
3167 	for (i = 0; i < ctx->server_dnsname_count; i++)
3168 		os_free(ctx->server_dnsname[i]);
3169 	os_free(ctx->server_dnsname);
3170 }
3171 
3172 
3173 static void check_workarounds(struct hs20_osu_client *ctx)
3174 {
3175 	FILE *f;
3176 	char buf[100];
3177 	unsigned long int val = 0;
3178 
3179 	f = fopen("hs20-osu-client.workarounds", "r");
3180 	if (f == NULL)
3181 		return;
3182 
3183 	if (fgets(buf, sizeof(buf), f))
3184 		val = strtoul(buf, NULL, 16);
3185 
3186 	fclose(f);
3187 
3188 	if (val) {
3189 		wpa_printf(MSG_INFO, "Workarounds enabled: 0x%lx", val);
3190 		ctx->workarounds = val;
3191 		if (ctx->workarounds & WORKAROUND_OCSP_OPTIONAL)
3192 			http_ocsp_set(ctx->http, 1);
3193 	}
3194 }
3195 
3196 
3197 static void usage(void)
3198 {
3199 	printf("usage: hs20-osu-client [-dddqqKtT] [-S<station ifname>] \\\n"
3200 	       "    [-w<wpa_supplicant ctrl_iface dir>] "
3201 	       "[-r<result file>] [-f<debug file>] \\\n"
3202 	       "    [-s<summary file>] \\\n"
3203 	       "    [-x<spp.xsd file name>] \\\n"
3204 	       "    <command> [arguments..]\n"
3205 	       "commands:\n"
3206 	       "- to_tnds <XML MO> <XML MO in TNDS format> [URN]\n"
3207 	       "- to_tnds2 <XML MO> <XML MO in TNDS format (Path) "
3208 	       "[URN]>\n"
3209 	       "- from_tnds <XML MO in TNDS format> <XML MO>\n"
3210 	       "- set_pps <PerProviderSubscription XML file name>\n"
3211 	       "- get_fqdn <PerProviderSubscription XML file name>\n"
3212 	       "- pol_upd [Server URL] [PPS] [CA cert]\n"
3213 	       "- sub_rem <Server URL> [PPS] [CA cert]\n"
3214 	       "- prov <Server URL> [CA cert]\n"
3215 	       "- oma_dm_prov <Server URL> [CA cert]\n"
3216 	       "- sim_prov <Server URL> [CA cert]\n"
3217 	       "- oma_dm_sim_prov <Server URL> [CA cert]\n"
3218 	       "- signup [CA cert]\n"
3219 	       "- dl_osu_ca <PPS> <CA file>\n"
3220 	       "- dl_polupd_ca <PPS> <CA file>\n"
3221 	       "- dl_aaa_ca <PPS> <CA file>\n"
3222 	       "- browser <URL>\n"
3223 	       "- parse_cert <X.509 certificate (DER)>\n"
3224 	       "- osu_select <OSU info directory> [CA cert]\n");
3225 }
3226 
3227 
3228 int main(int argc, char *argv[])
3229 {
3230 	struct hs20_osu_client ctx;
3231 	int c;
3232 	int ret = 0;
3233 	int no_prod_assoc = 0;
3234 	const char *friendly_name = NULL;
3235 	const char *wpa_debug_file_path = NULL;
3236 	extern char *wpas_ctrl_path;
3237 	extern int wpa_debug_level;
3238 	extern int wpa_debug_show_keys;
3239 	extern int wpa_debug_timestamp;
3240 
3241 	if (init_ctx(&ctx) < 0)
3242 		return -1;
3243 
3244 	for (;;) {
3245 		c = getopt(argc, argv, "df:hKNo:O:qr:s:S:tTw:x:");
3246 		if (c < 0)
3247 			break;
3248 		switch (c) {
3249 		case 'd':
3250 			if (wpa_debug_level > 0)
3251 				wpa_debug_level--;
3252 			break;
3253 		case 'f':
3254 			wpa_debug_file_path = optarg;
3255 			break;
3256 		case 'K':
3257 			wpa_debug_show_keys++;
3258 			break;
3259 		case 'N':
3260 			no_prod_assoc = 1;
3261 			break;
3262 		case 'o':
3263 			ctx.osu_ssid = optarg;
3264 			break;
3265 		case 'O':
3266 			friendly_name = optarg;
3267 			break;
3268 		case 'q':
3269 			wpa_debug_level++;
3270 			break;
3271 		case 'r':
3272 			ctx.result_file = optarg;
3273 			break;
3274 		case 's':
3275 			ctx.summary_file = optarg;
3276 			break;
3277 		case 'S':
3278 			ctx.ifname = optarg;
3279 			break;
3280 		case 't':
3281 			wpa_debug_timestamp++;
3282 			break;
3283 		case 'T':
3284 			ctx.ignore_tls = 1;
3285 			break;
3286 		case 'w':
3287 			wpas_ctrl_path = optarg;
3288 			break;
3289 		case 'x':
3290 			spp_xsd_fname = optarg;
3291 			break;
3292 		case 'h':
3293 		default:
3294 			usage();
3295 			exit(0);
3296 		}
3297 	}
3298 
3299 	if (argc - optind < 1) {
3300 		usage();
3301 		exit(0);
3302 	}
3303 
3304 	wpa_debug_open_file(wpa_debug_file_path);
3305 
3306 #ifdef __linux__
3307 	setlinebuf(stdout);
3308 #endif /* __linux__ */
3309 
3310 	if (ctx.result_file)
3311 		unlink(ctx.result_file);
3312 	wpa_printf(MSG_DEBUG, "===[hs20-osu-client START - command: %s ]======"
3313 		   "================", argv[optind]);
3314 	check_workarounds(&ctx);
3315 
3316 	if (strcmp(argv[optind], "to_tnds") == 0) {
3317 		if (argc - optind < 2) {
3318 			usage();
3319 			exit(0);
3320 		}
3321 		cmd_to_tnds(&ctx, argv[optind + 1], argv[optind + 2],
3322 			    argc > optind + 3 ? argv[optind + 3] : NULL,
3323 			    0);
3324 	} else if (strcmp(argv[optind], "to_tnds2") == 0) {
3325 		if (argc - optind < 2) {
3326 			usage();
3327 			exit(0);
3328 		}
3329 		cmd_to_tnds(&ctx, argv[optind + 1], argv[optind + 2],
3330 			    argc > optind + 3 ? argv[optind + 3] : NULL,
3331 			    1);
3332 	} else if (strcmp(argv[optind], "from_tnds") == 0) {
3333 		if (argc - optind < 2) {
3334 			usage();
3335 			exit(0);
3336 		}
3337 		cmd_from_tnds(&ctx, argv[optind + 1], argv[optind + 2]);
3338 	} else if (strcmp(argv[optind], "sub_rem") == 0) {
3339 		if (argc - optind < 2) {
3340 			usage();
3341 			exit(0);
3342 		}
3343 		ret = cmd_sub_rem(&ctx, argv[optind + 1],
3344 				  argc > optind + 2 ? argv[optind + 2] : NULL,
3345 				  argc > optind + 3 ? argv[optind + 3] : NULL);
3346 	} else if (strcmp(argv[optind], "pol_upd") == 0) {
3347 		ret = cmd_pol_upd(&ctx,
3348 				  argc > optind + 1 ? argv[optind + 1] : NULL,
3349 				  argc > optind + 2 ? argv[optind + 2] : NULL,
3350 				  argc > optind + 3 ? argv[optind + 3] : NULL);
3351 	} else if (strcmp(argv[optind], "prov") == 0) {
3352 		if (argc - optind < 2) {
3353 			usage();
3354 			exit(0);
3355 		}
3356 		ctx.ca_fname = argv[optind + 2];
3357 		wpa_printf(MSG_DEBUG, "Calling cmd_prov from main");
3358 		cmd_prov(&ctx, argv[optind + 1]);
3359 	} else if (strcmp(argv[optind], "sim_prov") == 0) {
3360 		if (argc - optind < 2) {
3361 			usage();
3362 			exit(0);
3363 		}
3364 		ctx.ca_fname = argv[optind + 2];
3365 		cmd_sim_prov(&ctx, argv[optind + 1]);
3366 	} else if (strcmp(argv[optind], "dl_osu_ca") == 0) {
3367 		if (argc - optind < 2) {
3368 			usage();
3369 			exit(0);
3370 		}
3371 		cmd_dl_osu_ca(&ctx, argv[optind + 1], argv[optind + 2]);
3372 	} else if (strcmp(argv[optind], "dl_polupd_ca") == 0) {
3373 		if (argc - optind < 2) {
3374 			usage();
3375 			exit(0);
3376 		}
3377 		cmd_dl_polupd_ca(&ctx, argv[optind + 1], argv[optind + 2]);
3378 	} else if (strcmp(argv[optind], "dl_aaa_ca") == 0) {
3379 		if (argc - optind < 2) {
3380 			usage();
3381 			exit(0);
3382 		}
3383 		cmd_dl_aaa_ca(&ctx, argv[optind + 1], argv[optind + 2]);
3384 	} else if (strcmp(argv[optind], "osu_select") == 0) {
3385 		if (argc - optind < 2) {
3386 			usage();
3387 			exit(0);
3388 		}
3389 		ctx.ca_fname = argc > optind + 2 ? argv[optind + 2] : NULL;
3390 		cmd_osu_select(&ctx, argv[optind + 1], 2, 1, NULL);
3391 	} else if (strcmp(argv[optind], "signup") == 0) {
3392 		ctx.ca_fname = argc > optind + 1 ? argv[optind + 1] : NULL;
3393 		ret = cmd_signup(&ctx, no_prod_assoc, friendly_name);
3394 	} else if (strcmp(argv[optind], "set_pps") == 0) {
3395 		if (argc - optind < 2) {
3396 			usage();
3397 			exit(0);
3398 		}
3399 		cmd_set_pps(&ctx, argv[optind + 1]);
3400 	} else if (strcmp(argv[optind], "get_fqdn") == 0) {
3401 		if (argc - optind < 1) {
3402 			usage();
3403 			exit(0);
3404 		}
3405 		ret = cmd_get_fqdn(&ctx, argv[optind + 1]);
3406 	} else if (strcmp(argv[optind], "oma_dm_prov") == 0) {
3407 		if (argc - optind < 2) {
3408 			usage();
3409 			exit(0);
3410 		}
3411 		ctx.ca_fname = argv[optind + 2];
3412 		cmd_oma_dm_prov(&ctx, argv[optind + 1]);
3413 	} else if (strcmp(argv[optind], "oma_dm_sim_prov") == 0) {
3414 		if (argc - optind < 2) {
3415 			usage();
3416 			exit(0);
3417 		}
3418 		ctx.ca_fname = argv[optind + 2];
3419 		if (cmd_oma_dm_sim_prov(&ctx, argv[optind + 1]) < 0) {
3420 			write_summary(&ctx, "Failed to complete OMA DM SIM provisioning");
3421 			return -1;
3422 		}
3423 	} else if (strcmp(argv[optind], "oma_dm_add") == 0) {
3424 		if (argc - optind < 2) {
3425 			usage();
3426 			exit(0);
3427 		}
3428 		cmd_oma_dm_add(&ctx, argv[optind + 1], argv[optind + 2]);
3429 	} else if (strcmp(argv[optind], "oma_dm_replace") == 0) {
3430 		if (argc - optind < 2) {
3431 			usage();
3432 			exit(0);
3433 		}
3434 		cmd_oma_dm_replace(&ctx, argv[optind + 1], argv[optind + 2]);
3435 	} else if (strcmp(argv[optind], "est_csr") == 0) {
3436 		if (argc - optind < 2) {
3437 			usage();
3438 			exit(0);
3439 		}
3440 		mkdir("Cert", S_IRWXU);
3441 		est_build_csr(&ctx, argv[optind + 1]);
3442 	} else if (strcmp(argv[optind], "browser") == 0) {
3443 		int ret;
3444 
3445 		if (argc - optind < 2) {
3446 			usage();
3447 			exit(0);
3448 		}
3449 
3450 		wpa_printf(MSG_INFO, "Launch web browser to URL %s",
3451 			   argv[optind + 1]);
3452 		ret = hs20_web_browser(argv[optind + 1], ctx.ignore_tls);
3453 		wpa_printf(MSG_INFO, "Web browser result: %d", ret);
3454 	} else if (strcmp(argv[optind], "parse_cert") == 0) {
3455 		if (argc - optind < 2) {
3456 			usage();
3457 			exit(0);
3458 		}
3459 
3460 		wpa_debug_level = MSG_MSGDUMP;
3461 		http_parse_x509_certificate(ctx.http, argv[optind + 1]);
3462 		wpa_debug_level = MSG_INFO;
3463 	} else {
3464 		wpa_printf(MSG_INFO, "Unknown command '%s'", argv[optind]);
3465 	}
3466 
3467 	deinit_ctx(&ctx);
3468 	wpa_printf(MSG_DEBUG,
3469 		   "===[hs20-osu-client END ]======================");
3470 
3471 	wpa_debug_close_file();
3472 
3473 	return ret;
3474 }
3475