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OpenSSL: Fix OCSP error path
[thirdparty/hostap.git] / src / utils / http_curl.c
CommitLineData
1cb3eda9
JM		 1/*
2 * HTTP wrapper for libcurl
4d65deda 3 * Copyright (c) 2012-2014, Qualcomm Atheros, Inc.
1cb3eda9
JM		 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 <curl/curl.h>
11#ifdef EAP_TLS_OPENSSL
12#include <openssl/ssl.h>
13#include <openssl/asn1.h>
14#include <openssl/asn1t.h>
15#include <openssl/x509v3.h>
16
17#ifdef SSL_set_tlsext_status_type
18#ifndef OPENSSL_NO_TLSEXT
19#define HAVE_OCSP
20#include <openssl/err.h>
21#include <openssl/ocsp.h>
22#endif /* OPENSSL_NO_TLSEXT */
23#endif /* SSL_set_tlsext_status_type */
24#endif /* EAP_TLS_OPENSSL */
25
26#include "common.h"
27#include "xml-utils.h"
28#include "http-utils.h"
29
30
31struct http_ctx {
32 void *ctx;
33 struct xml_node_ctx *xml;
34 CURL *curl;
35 struct curl_slist *curl_hdr;
36 char *svc_address;
37 char *svc_ca_fname;
38 char *svc_username;
39 char *svc_password;
40 char *svc_client_cert;
41 char *svc_client_key;
42 char *curl_buf;
43 size_t curl_buf_len;
44
45 int (*cert_cb)(void *ctx, struct http_cert *cert);
46 void *cert_cb_ctx;
47
48 enum {
49 NO_OCSP, OPTIONAL_OCSP, MANDATORY_OCSP
50 } ocsp;
51 X509 *peer_cert;
52 X509 *peer_issuer;
53 X509 *peer_issuer_issuer;
54
55 const char *last_err;
56};
57
58
59static void clear_curl(struct http_ctx *ctx)
60{
61 if (ctx->curl) {
62 curl_easy_cleanup(ctx->curl);
63 ctx->curl = NULL;
64 }
65 if (ctx->curl_hdr) {
66 curl_slist_free_all(ctx->curl_hdr);
67 ctx->curl_hdr = NULL;
68 }
69}
70
71
72static void clone_str(char **dst, const char *src)
73{
74 os_free(*dst);
75 if (src)
76 *dst = os_strdup(src);
77 else
78 *dst = NULL;
79}
80
81
82static void debug_dump(struct http_ctx *ctx, const char *title,
83 const char *buf, size_t len)
84{
4d65deda
JM		 85 char *txt;
86 size_t i;
87
88 for (i = 0; i < len; i++) {
89 if (buf[i] < 32 && buf[i] != '\t' && buf[i] != '\n' &&
90 buf[i] != '\r') {
91 wpa_hexdump_ascii(MSG_MSGDUMP, title, buf, len);
92 return;
93 }
94 }
95
96 txt = os_malloc(len + 1);
1cb3eda9
JM		 97 if (txt == NULL)
98 return;
99 os_memcpy(txt, buf, len);
100 txt[len] = '\0';
101 while (len > 0) {
102 len--;
4d65deda
JM		 103 if (txt[len] == '\n' || txt[len] == '\r')
104 txt[len] = '\0';
105 else
106 break;
1cb3eda9
JM		 107 }
108 wpa_printf(MSG_MSGDUMP, "%s[%s]", title, txt);
109 os_free(txt);
110}
111
112
113static int curl_cb_debug(CURL *curl, curl_infotype info, char *buf, size_t len,
114 void *userdata)
115{
116 struct http_ctx *ctx = userdata;
117 switch (info) {
118 case CURLINFO_TEXT:
119 debug_dump(ctx, "CURLINFO_TEXT", buf, len);
120 break;
121 case CURLINFO_HEADER_IN:
122 debug_dump(ctx, "CURLINFO_HEADER_IN", buf, len);
123 break;
124 case CURLINFO_HEADER_OUT:
125 debug_dump(ctx, "CURLINFO_HEADER_OUT", buf, len);
126 break;
127 case CURLINFO_DATA_IN:
128 debug_dump(ctx, "CURLINFO_DATA_IN", buf, len);
129 break;
130 case CURLINFO_DATA_OUT:
131 debug_dump(ctx, "CURLINFO_DATA_OUT", buf, len);
132 break;
133 case CURLINFO_SSL_DATA_IN:
134 wpa_printf(MSG_DEBUG, "debug - CURLINFO_SSL_DATA_IN - %d",
135 (int) len);
136 break;
137 case CURLINFO_SSL_DATA_OUT:
138 wpa_printf(MSG_DEBUG, "debug - CURLINFO_SSL_DATA_OUT - %d",
139 (int) len);
140 break;
141 case CURLINFO_END:
142 wpa_printf(MSG_DEBUG, "debug - CURLINFO_END - %d",
143 (int) len);
144 break;
145 }
146 return 0;
147}
148
149
1cb3eda9
JM		 150static size_t curl_cb_write(void *ptr, size_t size, size_t nmemb,
151 void *userdata)
152{
153 struct http_ctx *ctx = userdata;
154 char *n;
1cb3eda9
JM		 155 n = os_realloc(ctx->curl_buf, ctx->curl_buf_len + size * nmemb + 1);
156 if (n == NULL)
157 return 0;
158 ctx->curl_buf = n;
159 os_memcpy(n + ctx->curl_buf_len, ptr, size * nmemb);
160 n[ctx->curl_buf_len + size * nmemb] = '\0';
161 ctx->curl_buf_len += size * nmemb;
162 return size * nmemb;
163}
164
165
166#ifdef EAP_TLS_OPENSSL
167
168static void debug_dump_cert(const char *title, X509 *cert)
169{
170 BIO *out;
171 char *txt;
172 size_t rlen;
173
174 out = BIO_new(BIO_s_mem());
175 if (!out)
176 return;
177
178 X509_print_ex(out, cert, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
179 rlen = BIO_ctrl_pending(out);
180 txt = os_malloc(rlen + 1);
181 if (txt) {
182 int res = BIO_read(out, txt, rlen);
183 if (res > 0) {
184 txt[res] = '\0';
185 wpa_printf(MSG_MSGDUMP, "%s:\n%s", title, txt);
186 }
187 os_free(txt);
188 }
189 BIO_free(out);
190}
191
192
193static void add_alt_name_othername(struct http_ctx *ctx, struct http_cert *cert,
194 OTHERNAME *o)
195{
196 char txt[100];
197 int res;
198 struct http_othername *on;
199 ASN1_TYPE *val;
200
201 on = os_realloc_array(cert->othername, cert->num_othername + 1,
202 sizeof(struct http_othername));
203 if (on == NULL)
204 return;
205 cert->othername = on;
206 on = &on[cert->num_othername];
207 os_memset(on, 0, sizeof(*on));
208
209 res = OBJ_obj2txt(txt, sizeof(txt), o->type_id, 1);
210 if (res < 0 || res >= (int) sizeof(txt))
211 return;
212
213 on->oid = os_strdup(txt);
214 if (on->oid == NULL)
215 return;
216
217 val = o->value;
218 on->data = val->value.octet_string->data;
219 on->len = val->value.octet_string->length;
220
221 cert->num_othername++;
222}
223
224
225static void add_alt_name_dns(struct http_ctx *ctx, struct http_cert *cert,
226 ASN1_STRING *name)
227{
228 char *buf;
229 char **n;
230
231 buf = NULL;
232 if (ASN1_STRING_to_UTF8((unsigned char **) &buf, name) < 0)
233 return;
234
235 n = os_realloc_array(cert->dnsname, cert->num_dnsname + 1,
236 sizeof(char *));
237 if (n == NULL)
238 return;
239
240 cert->dnsname = n;
241 n[cert->num_dnsname] = buf;
242 cert->num_dnsname++;
243}
244
245
246static void add_alt_name(struct http_ctx *ctx, struct http_cert *cert,
247 const GENERAL_NAME *name)
248{
249 switch (name->type) {
250 case GEN_OTHERNAME:
251 add_alt_name_othername(ctx, cert, name->d.otherName);
252 break;
253 case GEN_DNS:
254 add_alt_name_dns(ctx, cert, name->d.dNSName);
255 break;
256 }
257}
258
259
260static void add_alt_names(struct http_ctx *ctx, struct http_cert *cert,
261 GENERAL_NAMES *names)
262{
263 int num, i;
264
265 num = sk_GENERAL_NAME_num(names);
266 for (i = 0; i < num; i++) {
267 const GENERAL_NAME *name;
268 name = sk_GENERAL_NAME_value(names, i);
269 add_alt_name(ctx, cert, name);
270 }
271}
272
273
274/* RFC 3709 */
275
276typedef struct {
277 X509_ALGOR *hashAlg;
278 ASN1_OCTET_STRING *hashValue;
279} HashAlgAndValue;
280
281typedef struct {
282 STACK_OF(HashAlgAndValue) *refStructHash;
283 STACK_OF(ASN1_IA5STRING) *refStructURI;
284} LogotypeReference;
285
286typedef struct {
287 ASN1_IA5STRING *mediaType;
288 STACK_OF(HashAlgAndValue) *logotypeHash;
289 STACK_OF(ASN1_IA5STRING) *logotypeURI;
290} LogotypeDetails;
291
292typedef struct {
293 int type;
294 union {
295 ASN1_INTEGER *numBits;
296 ASN1_INTEGER *tableSize;
297 } d;
298} LogotypeImageResolution;
299
300typedef struct {
301 ASN1_INTEGER *type; /* LogotypeImageType ::= INTEGER */
302 ASN1_INTEGER *fileSize;
303 ASN1_INTEGER *xSize;
304 ASN1_INTEGER *ySize;
305 LogotypeImageResolution *resolution;
306 ASN1_IA5STRING *language;
307} LogotypeImageInfo;
308
309typedef struct {
310 LogotypeDetails *imageDetails;
311 LogotypeImageInfo *imageInfo;
312} LogotypeImage;
313
314typedef struct {
315 ASN1_INTEGER *fileSize;
316 ASN1_INTEGER *playTime;
317 ASN1_INTEGER *channels;
318 ASN1_INTEGER *sampleRate;
319 ASN1_IA5STRING *language;
320} LogotypeAudioInfo;
321
322typedef struct {
323 LogotypeDetails *audioDetails;
324 LogotypeAudioInfo *audioInfo;
325} LogotypeAudio;
326
327typedef struct {
328 STACK_OF(LogotypeImage) *image;
329 STACK_OF(LogotypeAudio) *audio;
330} LogotypeData;
331
332typedef struct {
333 int type;
334 union {
335 LogotypeData *direct;
336 LogotypeReference *indirect;
337 } d;
338} LogotypeInfo;
339
340typedef struct {
341 ASN1_OBJECT *logotypeType;
342 LogotypeInfo *info;
343} OtherLogotypeInfo;
344
345typedef struct {
346 STACK_OF(LogotypeInfo) *communityLogos;
347 LogotypeInfo *issuerLogo;
348 LogotypeInfo *subjectLogo;
349 STACK_OF(OtherLogotypeInfo) *otherLogos;
350} LogotypeExtn;
351
352ASN1_SEQUENCE(HashAlgAndValue) = {
353 ASN1_SIMPLE(HashAlgAndValue, hashAlg, X509_ALGOR),
354 ASN1_SIMPLE(HashAlgAndValue, hashValue, ASN1_OCTET_STRING)
355} ASN1_SEQUENCE_END(HashAlgAndValue);
356
357ASN1_SEQUENCE(LogotypeReference) = {
358 ASN1_SEQUENCE_OF(LogotypeReference, refStructHash, HashAlgAndValue),
359 ASN1_SEQUENCE_OF(LogotypeReference, refStructURI, ASN1_IA5STRING)
360} ASN1_SEQUENCE_END(LogotypeReference);
361
362ASN1_SEQUENCE(LogotypeDetails) = {
363 ASN1_SIMPLE(LogotypeDetails, mediaType, ASN1_IA5STRING),
364 ASN1_SEQUENCE_OF(LogotypeDetails, logotypeHash, HashAlgAndValue),
365 ASN1_SEQUENCE_OF(LogotypeDetails, logotypeURI, ASN1_IA5STRING)
366} ASN1_SEQUENCE_END(LogotypeDetails);
367
368ASN1_CHOICE(LogotypeImageResolution) = {
369 ASN1_IMP(LogotypeImageResolution, d.numBits, ASN1_INTEGER, 1),
370 ASN1_IMP(LogotypeImageResolution, d.tableSize, ASN1_INTEGER, 2)
371} ASN1_CHOICE_END(LogotypeImageResolution);
372
373ASN1_SEQUENCE(LogotypeImageInfo) = {
374 ASN1_IMP_OPT(LogotypeImageInfo, type, ASN1_INTEGER, 0),
375 ASN1_SIMPLE(LogotypeImageInfo, fileSize, ASN1_INTEGER),
376 ASN1_SIMPLE(LogotypeImageInfo, xSize, ASN1_INTEGER),
377 ASN1_SIMPLE(LogotypeImageInfo, ySize, ASN1_INTEGER),
378 ASN1_OPT(LogotypeImageInfo, resolution, LogotypeImageResolution),
379 ASN1_IMP_OPT(LogotypeImageInfo, language, ASN1_IA5STRING, 4),
380} ASN1_SEQUENCE_END(LogotypeImageInfo);
381
382ASN1_SEQUENCE(LogotypeImage) = {
383 ASN1_SIMPLE(LogotypeImage, imageDetails, LogotypeDetails),
384 ASN1_OPT(LogotypeImage, imageInfo, LogotypeImageInfo)
385} ASN1_SEQUENCE_END(LogotypeImage);
386
387ASN1_SEQUENCE(LogotypeAudioInfo) = {
388 ASN1_SIMPLE(LogotypeAudioInfo, fileSize, ASN1_INTEGER),
389 ASN1_SIMPLE(LogotypeAudioInfo, playTime, ASN1_INTEGER),
390 ASN1_SIMPLE(LogotypeAudioInfo, channels, ASN1_INTEGER),
391 ASN1_IMP_OPT(LogotypeAudioInfo, sampleRate, ASN1_INTEGER, 3),
392 ASN1_IMP_OPT(LogotypeAudioInfo, language, ASN1_IA5STRING, 4)
393} ASN1_SEQUENCE_END(LogotypeAudioInfo);
394
395ASN1_SEQUENCE(LogotypeAudio) = {
396 ASN1_SIMPLE(LogotypeAudio, audioDetails, LogotypeDetails),
397 ASN1_OPT(LogotypeAudio, audioInfo, LogotypeAudioInfo)
398} ASN1_SEQUENCE_END(LogotypeAudio);
399
400ASN1_SEQUENCE(LogotypeData) = {
401 ASN1_SEQUENCE_OF_OPT(LogotypeData, image, LogotypeImage),
402 ASN1_IMP_SEQUENCE_OF_OPT(LogotypeData, audio, LogotypeAudio, 1)
403} ASN1_SEQUENCE_END(LogotypeData);
404
405ASN1_CHOICE(LogotypeInfo) = {
406 ASN1_IMP(LogotypeInfo, d.direct, LogotypeData, 0),
407 ASN1_IMP(LogotypeInfo, d.indirect, LogotypeReference, 1)
408} ASN1_CHOICE_END(LogotypeInfo);
409
410ASN1_SEQUENCE(OtherLogotypeInfo) = {
411 ASN1_SIMPLE(OtherLogotypeInfo, logotypeType, ASN1_OBJECT),
412 ASN1_SIMPLE(OtherLogotypeInfo, info, LogotypeInfo)
413} ASN1_SEQUENCE_END(OtherLogotypeInfo);
414
415ASN1_SEQUENCE(LogotypeExtn) = {
416 ASN1_EXP_SEQUENCE_OF_OPT(LogotypeExtn, communityLogos, LogotypeInfo, 0),
417 ASN1_EXP_OPT(LogotypeExtn, issuerLogo, LogotypeInfo, 1),
418 ASN1_EXP_OPT(LogotypeExtn, issuerLogo, LogotypeInfo, 2),
419 ASN1_EXP_SEQUENCE_OF_OPT(LogotypeExtn, otherLogos, OtherLogotypeInfo, 3)
420} ASN1_SEQUENCE_END(LogotypeExtn);
421
422IMPLEMENT_ASN1_FUNCTIONS(LogotypeExtn);
423
424#define sk_LogotypeInfo_num(st) SKM_sk_num(LogotypeInfo, (st))
425#define sk_LogotypeInfo_value(st, i) SKM_sk_value(LogotypeInfo, (st), (i))
426#define sk_LogotypeImage_num(st) SKM_sk_num(LogotypeImage, (st))
427#define sk_LogotypeImage_value(st, i) SKM_sk_value(LogotypeImage, (st), (i))
39b420f7
JM		 428#define sk_LogotypeAudio_num(st) SKM_sk_num(LogotypeAudio, (st))
429#define sk_LogotypeAudio_value(st, i) SKM_sk_value(LogotypeAudio, (st), (i))
1cb3eda9
JM		 430#define sk_HashAlgAndValue_num(st) SKM_sk_num(HashAlgAndValue, (st))
431#define sk_HashAlgAndValue_value(st, i) SKM_sk_value(HashAlgAndValue, (st), (i))
432#define sk_ASN1_IA5STRING_num(st) SKM_sk_num(ASN1_IA5STRING, (st))
433#define sk_ASN1_IA5STRING_value(st, i) SKM_sk_value(ASN1_IA5STRING, (st), (i))
434
435
436static void add_logo(struct http_ctx *ctx, struct http_cert *hcert,
437 HashAlgAndValue *hash, ASN1_IA5STRING *uri)
438{
439 char txt[100];
440 int res, len;
441 struct http_logo *n;
442
443 if (hash == NULL || uri == NULL)
444 return;
445
446 res = OBJ_obj2txt(txt, sizeof(txt), hash->hashAlg->algorithm, 1);
447 if (res < 0 || res >= (int) sizeof(txt))
448 return;
449
450 n = os_realloc_array(hcert->logo, hcert->num_logo + 1,
451 sizeof(struct http_logo));
452 if (n == NULL)
453 return;
454 hcert->logo = n;
455 n = &hcert->logo[hcert->num_logo];
456 os_memset(n, 0, sizeof(*n));
457
458 n->alg_oid = os_strdup(txt);
459 if (n->alg_oid == NULL)
460 return;
461
462 n->hash_len = ASN1_STRING_length(hash->hashValue);
463 n->hash = os_malloc(n->hash_len);
464 if (n->hash == NULL) {
465 os_free(n->alg_oid);
466 return;
467 }
468 os_memcpy(n->hash, ASN1_STRING_data(hash->hashValue), n->hash_len);
469
470 len = ASN1_STRING_length(uri);
471 n->uri = os_malloc(len + 1);
472 if (n->uri == NULL) {
473 os_free(n->alg_oid);
474 os_free(n->hash);
475 return;
476 }
477 os_memcpy(n->uri, ASN1_STRING_data(uri), len);
478 n->uri[len] = '\0';
479
480 hcert->num_logo++;
481}
482
483
484static void add_logo_direct(struct http_ctx *ctx, struct http_cert *hcert,
485 LogotypeData *data)
486{
487 int i, num;
488
489 if (data->image == NULL)
490 return;
491
492 num = sk_LogotypeImage_num(data->image);
493 for (i = 0; i < num; i++) {
494 LogotypeImage *image;
495 LogotypeDetails *details;
496 int j, hash_num, uri_num;
497 HashAlgAndValue *found_hash = NULL;
498
499 image = sk_LogotypeImage_value(data->image, i);
500 if (image == NULL)
501 continue;
502
503 details = image->imageDetails;
504 if (details == NULL)
505 continue;
506
507 hash_num = sk_HashAlgAndValue_num(details->logotypeHash);
508 for (j = 0; j < hash_num; j++) {
509 HashAlgAndValue *hash;
510 char txt[100];
511 int res;
512 hash = sk_HashAlgAndValue_value(details->logotypeHash,
513 j);
514 if (hash == NULL)
515 continue;
516 res = OBJ_obj2txt(txt, sizeof(txt),
517 hash->hashAlg->algorithm, 1);
518 if (res < 0 || res >= (int) sizeof(txt))
519 continue;
520 if (os_strcmp(txt, "2.16.840.1.101.3.4.2.1") == 0) {
521 found_hash = hash;
522 break;
523 }
524 }
525
526 if (!found_hash) {
527 wpa_printf(MSG_DEBUG, "OpenSSL: No SHA256 hash found for the logo");
528 continue;
529 }
530
531 uri_num = sk_ASN1_IA5STRING_num(details->logotypeURI);
532 for (j = 0; j < uri_num; j++) {
533 ASN1_IA5STRING *uri;
534 uri = sk_ASN1_IA5STRING_value(details->logotypeURI, j);
535 add_logo(ctx, hcert, found_hash, uri);
536 }
537 }
538}
539
540
541static void add_logo_indirect(struct http_ctx *ctx, struct http_cert *hcert,
542 LogotypeReference *ref)
543{
544 int j, hash_num, uri_num;
545
546 hash_num = sk_HashAlgAndValue_num(ref->refStructHash);
547 uri_num = sk_ASN1_IA5STRING_num(ref->refStructURI);
548 if (hash_num != uri_num) {
549 wpa_printf(MSG_INFO, "Unexpected LogotypeReference array size difference %d != %d",
550 hash_num, uri_num);
551 return;
552 }
553
554 for (j = 0; j < hash_num; j++) {
555 HashAlgAndValue *hash;
556 ASN1_IA5STRING *uri;
557 hash = sk_HashAlgAndValue_value(ref->refStructHash, j);
558 uri = sk_ASN1_IA5STRING_value(ref->refStructURI, j);
559 add_logo(ctx, hcert, hash, uri);
560 }
561}
562
563
39b420f7
JM		 564static void i2r_HashAlgAndValue(HashAlgAndValue *hash, BIO *out, int indent)
565{
566 int i;
567 const unsigned char *data;
568
569 BIO_printf(out, "%*shashAlg: ", indent, "");
570 i2a_ASN1_OBJECT(out, hash->hashAlg->algorithm);
571 BIO_printf(out, "\n");
572
573 BIO_printf(out, "%*shashValue: ", indent, "");
574 data = hash->hashValue->data;
575 for (i = 0; i < hash->hashValue->length; i++)
576 BIO_printf(out, "%s%02x", i > 0 ? ":" : "", data[i]);
577 BIO_printf(out, "\n");
578}
579
580static void i2r_LogotypeDetails(LogotypeDetails *details, BIO *out, int indent)
581{
582 int i, num;
583
584 BIO_printf(out, "%*sLogotypeDetails\n", indent, "");
585 if (details->mediaType) {
586 BIO_printf(out, "%*smediaType: ", indent, "");
587 ASN1_STRING_print(out, details->mediaType);
588 BIO_printf(out, "\n");
589 }
590
591 num = details->logotypeHash ?
592 sk_HashAlgAndValue_num(details->logotypeHash) : 0;
593 for (i = 0; i < num; i++) {
594 HashAlgAndValue *hash;
595 hash = sk_HashAlgAndValue_value(details->logotypeHash, i);
596 i2r_HashAlgAndValue(hash, out, indent);
597 }
598
599 num = details->logotypeURI ?
600 sk_ASN1_IA5STRING_num(details->logotypeURI) : 0;
601 for (i = 0; i < num; i++) {
602 ASN1_IA5STRING *uri;
603 uri = sk_ASN1_IA5STRING_value(details->logotypeURI, i);
604 BIO_printf(out, "%*slogotypeURI: ", indent, "");
605 ASN1_STRING_print(out, uri);
606 BIO_printf(out, "\n");
607 }
608}
609
610static void i2r_LogotypeImageInfo(LogotypeImageInfo *info, BIO *out, int indent)
611{
612 long val;
613
614 BIO_printf(out, "%*sLogotypeImageInfo\n", indent, "");
615 if (info->type) {
616 val = ASN1_INTEGER_get(info->type);
617 BIO_printf(out, "%*stype: %ld\n", indent, "", val);
618 } else {
619 BIO_printf(out, "%*stype: default (1)\n", indent, "");
620 }
621 val = ASN1_INTEGER_get(info->xSize);
622 BIO_printf(out, "%*sxSize: %ld\n", indent, "", val);
623 val = ASN1_INTEGER_get(info->ySize);
624 BIO_printf(out, "%*sySize: %ld\n", indent, "", val);
625 if (info->resolution) {
626 BIO_printf(out, "%*sresolution\n", indent, "");
627 /* TODO */
628 }
629 if (info->language) {
630 BIO_printf(out, "%*slanguage: ", indent, "");
631 ASN1_STRING_print(out, info->language);
632 BIO_printf(out, "\n");
633 }
634}
635
636static void i2r_LogotypeImage(LogotypeImage *image, BIO *out, int indent)
637{
638 BIO_printf(out, "%*sLogotypeImage\n", indent, "");
639 if (image->imageDetails) {
640 i2r_LogotypeDetails(image->imageDetails, out, indent + 4);
641 }
642 if (image->imageInfo) {
643 i2r_LogotypeImageInfo(image->imageInfo, out, indent + 4);
644 }
645}
646
647static void i2r_LogotypeData(LogotypeData *data, const char *title, BIO *out,
648 int indent)
649{
650 int i, num;
651
652 BIO_printf(out, "%*s%s - LogotypeData\n", indent, "", title);
653
654 num = data->image ? sk_LogotypeImage_num(data->image) : 0;
655 for (i = 0; i < num; i++) {
656 LogotypeImage *image = sk_LogotypeImage_value(data->image, i);
657 i2r_LogotypeImage(image, out, indent + 4);
658 }
659
660 num = data->audio ? sk_LogotypeAudio_num(data->audio) : 0;
661 for (i = 0; i < num; i++) {
662 BIO_printf(out, "%*saudio: TODO\n", indent, "");
663 }
664}
665
666static void i2r_LogotypeReference(LogotypeReference *ref, const char *title,
667 BIO *out, int indent)
668{
669 int i, hash_num, uri_num;
670
671 BIO_printf(out, "%*s%s - LogotypeReference\n", indent, "", title);
672
673 hash_num = ref->refStructHash ?
674 sk_HashAlgAndValue_num(ref->refStructHash) : 0;
675 uri_num = ref->refStructURI ?
676 sk_ASN1_IA5STRING_num(ref->refStructURI) : 0;
677 if (hash_num != uri_num) {
678 BIO_printf(out, "%*sUnexpected LogotypeReference array size difference %d != %d\n",
679 indent, "", hash_num, uri_num);
680 return;
681 }
682
683 for (i = 0; i < hash_num; i++) {
684 HashAlgAndValue *hash;
685 ASN1_IA5STRING *uri;
686
687 hash = sk_HashAlgAndValue_value(ref->refStructHash, i);
688 i2r_HashAlgAndValue(hash, out, indent);
689
690 uri = sk_ASN1_IA5STRING_value(ref->refStructURI, i);
691 BIO_printf(out, "%*srefStructURI: ", indent, "");
692 ASN1_STRING_print(out, uri);
693 BIO_printf(out, "\n");
694 }
695}
696
697static void i2r_LogotypeInfo(LogotypeInfo *info, const char *title, BIO *out,
698 int indent)
699{
700 switch (info->type) {
701 case 0:
702 i2r_LogotypeData(info->d.direct, title, out, indent);
703 break;
704 case 1:
705 i2r_LogotypeReference(info->d.indirect, title, out, indent);
706 break;
707 }
708}
709
710static void debug_print_logotypeext(LogotypeExtn *logo)
711{
712 BIO *out;
713 int i, num;
714 int indent = 0;
715
716 out = BIO_new_fp(stdout, BIO_NOCLOSE);
717 if (out == NULL)
718 return;
719
720 if (logo->communityLogos) {
721 num = sk_LogotypeInfo_num(logo->communityLogos);
722 for (i = 0; i < num; i++) {
723 LogotypeInfo *info;
724 info = sk_LogotypeInfo_value(logo->communityLogos, i);
725 i2r_LogotypeInfo(info, "communityLogo", out, indent);
726 }
727 }
728
729 if (logo->issuerLogo) {
730 i2r_LogotypeInfo(logo->issuerLogo, "issuerLogo", out, indent );
731 }
732
733 if (logo->subjectLogo) {
734 i2r_LogotypeInfo(logo->subjectLogo, "subjectLogo", out, indent);
735 }
736
737 if (logo->otherLogos) {
738 BIO_printf(out, "%*sotherLogos - TODO\n", indent, "");
739 }
740
741 BIO_free(out);
742}
743
744
1cb3eda9
JM		 745static void add_logotype_ext(struct http_ctx *ctx, struct http_cert *hcert,
746 X509 *cert)
747{
748 ASN1_OBJECT *obj;
749 int pos;
750 X509_EXTENSION *ext;
751 ASN1_OCTET_STRING *os;
752 LogotypeExtn *logo;
753 const unsigned char *data;
754 int i, num;
755
756 obj = OBJ_txt2obj("1.3.6.1.5.5.7.1.12", 0);
757 if (obj == NULL)
758 return;
759
760 pos = X509_get_ext_by_OBJ(cert, obj, -1);
761 if (pos < 0) {
762 wpa_printf(MSG_INFO, "No logotype extension included");
763 return;
764 }
765
766 wpa_printf(MSG_INFO, "Parsing logotype extension");
767 ext = X509_get_ext(cert, pos);
768 if (!ext) {
769 wpa_printf(MSG_INFO, "Could not get logotype extension");
770 return;
771 }
772
773 os = X509_EXTENSION_get_data(ext);
774 if (os == NULL) {
775 wpa_printf(MSG_INFO, "Could not get logotype extension data");
776 return;
777 }
778
779 wpa_hexdump(MSG_DEBUG, "logotypeExtn",
780 ASN1_STRING_data(os), ASN1_STRING_length(os));
781
782 data = ASN1_STRING_data(os);
783 logo = d2i_LogotypeExtn(NULL, &data, ASN1_STRING_length(os));
784 if (logo == NULL) {
785 wpa_printf(MSG_INFO, "Failed to parse logotypeExtn");
786 return;
787 }
788
39b420f7
JM		 789 if (wpa_debug_level < MSG_INFO)
790 debug_print_logotypeext(logo);
791
1cb3eda9
JM		 792 if (!logo->communityLogos) {
793 wpa_printf(MSG_INFO, "No communityLogos included");
794 LogotypeExtn_free(logo);
795 return;
796 }
797
798 num = sk_LogotypeInfo_num(logo->communityLogos);
799 for (i = 0; i < num; i++) {
800 LogotypeInfo *info;
801 info = sk_LogotypeInfo_value(logo->communityLogos, i);
802 switch (info->type) {
803 case 0:
804 add_logo_direct(ctx, hcert, info->d.direct);
805 break;
806 case 1:
807 add_logo_indirect(ctx, hcert, info->d.indirect);
808 break;
809 }
810 }
811
812 LogotypeExtn_free(logo);
813}
814
815
39b420f7
JM		 816static void parse_cert(struct http_ctx *ctx, struct http_cert *hcert,
817 X509 *cert, GENERAL_NAMES **names)
818{
819 os_memset(hcert, 0, sizeof(*hcert));
820
821 *names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
822 if (*names)
823 add_alt_names(ctx, hcert, *names);
824
825 add_logotype_ext(ctx, hcert, cert);
826}
827
828
829static void parse_cert_free(struct http_cert *hcert, GENERAL_NAMES *names)
830{
831 unsigned int i;
832
833 for (i = 0; i < hcert->num_dnsname; i++)
834 OPENSSL_free(hcert->dnsname[i]);
835 os_free(hcert->dnsname);
836
837 for (i = 0; i < hcert->num_othername; i++)
838 os_free(hcert->othername[i].oid);
839 os_free(hcert->othername);
840
841 for (i = 0; i < hcert->num_logo; i++) {
842 os_free(hcert->logo[i].alg_oid);
843 os_free(hcert->logo[i].hash);
844 os_free(hcert->logo[i].uri);
845 }
846 os_free(hcert->logo);
847
848 sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
849}
850
851
1cb3eda9
JM		 852static int validate_server_cert(struct http_ctx *ctx, X509 *cert)
853{
854 GENERAL_NAMES *names;
855 struct http_cert hcert;
1cb3eda9
JM		 856 int ret;
857
858 if (ctx->cert_cb == NULL)
859 return 0;
860
1cb3eda9
JM		 861 if (0) {
862 BIO *out;
863 out = BIO_new_fp(stdout, BIO_NOCLOSE);
864 X509_print_ex(out, cert, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
865 BIO_free(out);
866 }
867
39b420f7
JM		 868 parse_cert(ctx, &hcert, cert, &names);
869 ret = ctx->cert_cb(ctx->cert_cb_ctx, &hcert);
870 parse_cert_free(&hcert, names);
1cb3eda9 871
39b420f7
JM		 872 return ret;
873}
1cb3eda9 874
1cb3eda9 875
39b420f7
JM		 876void http_parse_x509_certificate(struct http_ctx *ctx, const char *fname)
877{
878 BIO *in, *out;
879 X509 *cert;
880 GENERAL_NAMES *names;
881 struct http_cert hcert;
882 unsigned int i;
883
884 in = BIO_new_file(fname, "r");
885 if (in == NULL) {
886 wpa_printf(MSG_ERROR, "Could not read '%s'", fname);
887 return;
888 }
1cb3eda9 889
39b420f7
JM		 890 cert = d2i_X509_bio(in, NULL);
891 BIO_free(in);
1cb3eda9 892
39b420f7
JM		 893 if (cert == NULL) {
894 wpa_printf(MSG_ERROR, "Could not parse certificate");
895 return;
1cb3eda9 896 }
1cb3eda9 897
39b420f7
JM		 898 out = BIO_new_fp(stdout, BIO_NOCLOSE);
899 if (out) {
900 X509_print_ex(out, cert, XN_FLAG_COMPAT,
901 X509_FLAG_COMPAT);
902 BIO_free(out);
903 }
1cb3eda9 904
39b420f7
JM		 905 wpa_printf(MSG_INFO, "Additional parsing information:");
906 parse_cert(ctx, &hcert, cert, &names);
907 for (i = 0; i < hcert.num_othername; i++) {
908 if (os_strcmp(hcert.othername[i].oid,
909 "1.3.6.1.4.1.40808.1.1.1") == 0) {
910 char *name = os_zalloc(hcert.othername[i].len + 1);
911 if (name) {
912 os_memcpy(name, hcert.othername[i].data,
913 hcert.othername[i].len);
914 wpa_printf(MSG_INFO,
915 "id-wfa-hotspot-friendlyName: %s",
916 name);
917 os_free(name);
918 }
919 wpa_hexdump_ascii(MSG_INFO,
920 "id-wfa-hotspot-friendlyName",
921 hcert.othername[i].data,
922 hcert.othername[i].len);
923 } else {
924 wpa_printf(MSG_INFO, "subjAltName[othername]: oid=%s",
925 hcert.othername[i].oid);
926 wpa_hexdump_ascii(MSG_INFO, "unknown othername",
927 hcert.othername[i].data,
928 hcert.othername[i].len);
929 }
930 }
931 parse_cert_free(&hcert, names);
932
933 X509_free(cert);
1cb3eda9
JM		 934}
935
936
937static int curl_cb_ssl_verify(int preverify_ok, X509_STORE_CTX *x509_ctx)
938{
939 struct http_ctx *ctx;
940 X509 *cert;
941 int err, depth;
942 char buf[256];
943 X509_NAME *name;
944 const char *err_str;
945 SSL *ssl;
946 SSL_CTX *ssl_ctx;
947
948 ssl = X509_STORE_CTX_get_ex_data(x509_ctx,
949 SSL_get_ex_data_X509_STORE_CTX_idx());
950 ssl_ctx = ssl->ctx;
951 ctx = SSL_CTX_get_app_data(ssl_ctx);
952
953 wpa_printf(MSG_DEBUG, "curl_cb_ssl_verify");
954
955 err = X509_STORE_CTX_get_error(x509_ctx);
956 err_str = X509_verify_cert_error_string(err);
957 depth = X509_STORE_CTX_get_error_depth(x509_ctx);
958 cert = X509_STORE_CTX_get_current_cert(x509_ctx);
959 if (!cert) {
960 wpa_printf(MSG_INFO, "No server certificate available");
961 ctx->last_err = "No server certificate available";
962 return 0;
963 }
964
965 if (depth == 0)
966 ctx->peer_cert = cert;
967 else if (depth == 1)
968 ctx->peer_issuer = cert;
969 else if (depth == 2)
970 ctx->peer_issuer_issuer = cert;
971
972 name = X509_get_subject_name(cert);
973 X509_NAME_oneline(name, buf, sizeof(buf));
974 wpa_printf(MSG_INFO, "Server certificate chain - depth=%d err=%d (%s) subject=%s",
975 depth, err, err_str, buf);
976 debug_dump_cert("Server certificate chain - certificate", cert);
977
978 if (depth == 0 && preverify_ok && validate_server_cert(ctx, cert) < 0)
979 return 0;
980
981 if (!preverify_ok)
982 ctx->last_err = "TLS validation failed";
983
984 return preverify_ok;
985}
986
987
988#ifdef HAVE_OCSP
989
990static void ocsp_debug_print_resp(OCSP_RESPONSE *rsp)
991{
992 BIO *out;
993 size_t rlen;
994 char *txt;
995 int res;
996
997 out = BIO_new(BIO_s_mem());
998 if (!out)
999 return;
1000
1001 OCSP_RESPONSE_print(out, rsp, 0);
1002 rlen = BIO_ctrl_pending(out);
1003 txt = os_malloc(rlen + 1);
1004 if (!txt) {
1005 BIO_free(out);
1006 return;
1007 }
1008
1009 res = BIO_read(out, txt, rlen);
1010 if (res > 0) {
1011 txt[res] = '\0';
1012 wpa_printf(MSG_MSGDUMP, "OpenSSL: OCSP Response\n%s", txt);
1013 }
1014 os_free(txt);
1015 BIO_free(out);
1016}
1017
1018
1019static void tls_show_errors(const char *func, const char *txt)
1020{
1021 unsigned long err;
1022
1023 wpa_printf(MSG_DEBUG, "OpenSSL: %s - %s %s",
1024 func, txt, ERR_error_string(ERR_get_error(), NULL));
1025
1026 while ((err = ERR_get_error())) {
1027 wpa_printf(MSG_DEBUG, "OpenSSL: pending error: %s",
1028 ERR_error_string(err, NULL));
1029 }
1030}
1031
1032
1033static int ocsp_resp_cb(SSL *s, void *arg)
1034{
1035 struct http_ctx *ctx = arg;
1036 const unsigned char *p;
1037 int len, status, reason;
1038 OCSP_RESPONSE *rsp;
1039 OCSP_BASICRESP *basic;
1040 OCSP_CERTID *id;
1041 ASN1_GENERALIZEDTIME *produced_at, *this_update, *next_update;
1042 X509_STORE *store;
1043 STACK_OF(X509) *certs = NULL;
1044
1045 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1046 if (!p) {
1047 wpa_printf(MSG_DEBUG, "OpenSSL: No OCSP response received");
1048 if (ctx->ocsp == MANDATORY_OCSP)
1049 ctx->last_err = "No OCSP response received";
1050 return (ctx->ocsp == MANDATORY_OCSP) ? 0 : 1;
1051 }
1052
1053 wpa_hexdump(MSG_DEBUG, "OpenSSL: OCSP response", p, len);
1054
1055 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1056 if (!rsp) {
1057 wpa_printf(MSG_INFO, "OpenSSL: Failed to parse OCSP response");
1058 ctx->last_err = "Failed to parse OCSP response";
1059 return 0;
1060 }
1061
1062 ocsp_debug_print_resp(rsp);
1063
1064 status = OCSP_response_status(rsp);
1065 if (status != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
1066 wpa_printf(MSG_INFO, "OpenSSL: OCSP responder error %d (%s)",
1067 status, OCSP_response_status_str(status));
1068 ctx->last_err = "OCSP responder error";
1069 return 0;
1070 }
1071
1072 basic = OCSP_response_get1_basic(rsp);
1073 if (!basic) {
1074 wpa_printf(MSG_INFO, "OpenSSL: Could not find BasicOCSPResponse");
1075 ctx->last_err = "Could not find BasicOCSPResponse";
1076 return 0;
1077 }
1078
1079 store = SSL_CTX_get_cert_store(s->ctx);
1080 if (ctx->peer_issuer) {
1081 wpa_printf(MSG_DEBUG, "OpenSSL: Add issuer");
1082 debug_dump_cert("OpenSSL: Issuer certificate",
1083 ctx->peer_issuer);
1084
1085 if (X509_STORE_add_cert(store, ctx->peer_issuer) != 1) {
1086 tls_show_errors(__func__,
1087 "OpenSSL: Could not add issuer to certificate store\n");
1088 }
1089 certs = sk_X509_new_null();
1090 if (certs) {
1091 X509 *cert;
1092 cert = X509_dup(ctx->peer_issuer);
1093 if (cert && !sk_X509_push(certs, cert)) {
1094 tls_show_errors(
1095 __func__,
1096 "OpenSSL: Could not add issuer to OCSP responder trust store\n");
1097 X509_free(cert);
1098 sk_X509_free(certs);
1099 certs = NULL;
1100 }
bd7bb437 1101 if (certs && ctx->peer_issuer_issuer) {
1cb3eda9
JM		 1102 cert = X509_dup(ctx->peer_issuer_issuer);
1103 if (cert && !sk_X509_push(certs, cert)) {
1104 tls_show_errors(
1105 __func__,
1106 "OpenSSL: Could not add issuer to OCSP responder trust store\n");
1107 X509_free(cert);
1108 }
1109 }
1110 }
1111 }
1112
1113 status = OCSP_basic_verify(basic, certs, store, OCSP_TRUSTOTHER);
1114 sk_X509_pop_free(certs, X509_free);
1115 if (status <= 0) {
1116 tls_show_errors(__func__,
1117 "OpenSSL: OCSP response failed verification");
1118 OCSP_BASICRESP_free(basic);
1119 OCSP_RESPONSE_free(rsp);
1120 ctx->last_err = "OCSP response failed verification";
1121 return 0;
1122 }
1123
1124 wpa_printf(MSG_DEBUG, "OpenSSL: OCSP response verification succeeded");
1125
1126 if (!ctx->peer_cert) {
1127 wpa_printf(MSG_DEBUG, "OpenSSL: Peer certificate not available for OCSP status check");
1128 OCSP_BASICRESP_free(basic);
1129 OCSP_RESPONSE_free(rsp);
1130 ctx->last_err = "Peer certificate not available for OCSP status check";
1131 return 0;
1132 }
1133
1134 if (!ctx->peer_issuer) {
1135 wpa_printf(MSG_DEBUG, "OpenSSL: Peer issuer certificate not available for OCSP status check");
1136 OCSP_BASICRESP_free(basic);
1137 OCSP_RESPONSE_free(rsp);
1138 ctx->last_err = "Peer issuer certificate not available for OCSP status check";
1139 return 0;
1140 }
1141
1142 id = OCSP_cert_to_id(NULL, ctx->peer_cert, ctx->peer_issuer);
1143 if (!id) {
1144 wpa_printf(MSG_DEBUG, "OpenSSL: Could not create OCSP certificate identifier");
1145 OCSP_BASICRESP_free(basic);
1146 OCSP_RESPONSE_free(rsp);
1147 ctx->last_err = "Could not create OCSP certificate identifier";
1148 return 0;
1149 }
1150
1151 if (!OCSP_resp_find_status(basic, id, &status, &reason, &produced_at,
1152 &this_update, &next_update)) {
1153 wpa_printf(MSG_INFO, "OpenSSL: Could not find current server certificate from OCSP response%s",
1154 (ctx->ocsp == MANDATORY_OCSP) ? "" :
1155 " (OCSP not required)");
1156 OCSP_BASICRESP_free(basic);
1157 OCSP_RESPONSE_free(rsp);
1158 if (ctx->ocsp == MANDATORY_OCSP)
1159
1160 ctx->last_err = "Could not find current server certificate from OCSP response";
1161 return (ctx->ocsp == MANDATORY_OCSP) ? 0 : 1;
1162 }
1163
1164 if (!OCSP_check_validity(this_update, next_update, 5 * 60, -1)) {
1165 tls_show_errors(__func__, "OpenSSL: OCSP status times invalid");
1166 OCSP_BASICRESP_free(basic);
1167 OCSP_RESPONSE_free(rsp);
1168 ctx->last_err = "OCSP status times invalid";
1169 return 0;
1170 }
1171
1172 OCSP_BASICRESP_free(basic);
1173 OCSP_RESPONSE_free(rsp);
1174
1175 wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status for server certificate: %s",
1176 OCSP_cert_status_str(status));
1177
1178 if (status == V_OCSP_CERTSTATUS_GOOD)
1179 return 1;
9c196f77 1180 if (status == V_OCSP_CERTSTATUS_REVOKED) {
1cb3eda9
JM		 1181 ctx->last_err = "Server certificate has been revoked";
1182 return 0;
9c196f77 1183 }
1cb3eda9
JM		 1184 if (ctx->ocsp == MANDATORY_OCSP) {
1185 wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status unknown, but OCSP required");
1186 ctx->last_err = "OCSP status unknown";
1187 return 0;
1188 }
1189 wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status unknown, but OCSP was not required, so allow connection to continue");
1190 return 1;
1191}
1192
1193
1194static SSL_METHOD patch_ssl_method;
1195static const SSL_METHOD *real_ssl_method;
1196
1197static int curl_patch_ssl_new(SSL *s)
1198{
1199 SSL_CTX *ssl = s->ctx;
1200 int ret;
1201
1202 ssl->method = real_ssl_method;
1203 s->method = real_ssl_method;
1204
1205 ret = s->method->ssl_new(s);
1206 SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp);
1207
1208 return ret;
1209}
1210
1211#endif /* HAVE_OCSP */
1212
1213
1214static CURLcode curl_cb_ssl(CURL *curl, void *sslctx, void *parm)
1215{
1216 struct http_ctx *ctx = parm;
1217 SSL_CTX *ssl = sslctx;
1218
1219 wpa_printf(MSG_DEBUG, "curl_cb_ssl");
1220 SSL_CTX_set_app_data(ssl, ctx);
1221 SSL_CTX_set_verify(ssl, SSL_VERIFY_PEER, curl_cb_ssl_verify);
1222
1223#ifdef HAVE_OCSP
1224 if (ctx->ocsp != NO_OCSP) {
1225 SSL_CTX_set_tlsext_status_cb(ssl, ocsp_resp_cb);
1226 SSL_CTX_set_tlsext_status_arg(ssl, ctx);
1227
1228 /*
1229 * Use a temporary SSL_METHOD to get a callback on SSL_new()
1230 * from libcurl since there is no proper callback registration
1231 * available for this.
1232 */
1233 os_memset(&patch_ssl_method, 0, sizeof(patch_ssl_method));
1234 patch_ssl_method.ssl_new = curl_patch_ssl_new;
1235 real_ssl_method = ssl->method;
1236 ssl->method = &patch_ssl_method;
1237 }
1238#endif /* HAVE_OCSP */
1239
1240 return CURLE_OK;
1241}
1242
1243#endif /* EAP_TLS_OPENSSL */
1244
1245
1246static CURL * setup_curl_post(struct http_ctx *ctx, const char *address,
1247 const char *ca_fname, const char *username,
1248 const char *password, const char *client_cert,
1249 const char *client_key)
1250{
1251 CURL *curl;
1252
1253 wpa_printf(MSG_DEBUG, "Start HTTP client: address=%s ca_fname=%s "
1254 "username=%s", address, ca_fname, username);
1255
1256 curl = curl_easy_init();
1257 if (curl == NULL)
1258 return NULL;
1259
1260 curl_easy_setopt(curl, CURLOPT_URL, address);
1261 curl_easy_setopt(curl, CURLOPT_POST, 1L);
1262 if (ca_fname) {
1263 curl_easy_setopt(curl, CURLOPT_CAINFO, ca_fname);
1264 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L);
1265#ifdef EAP_TLS_OPENSSL
1266 curl_easy_setopt(curl, CURLOPT_SSL_CTX_FUNCTION, curl_cb_ssl);
1267 curl_easy_setopt(curl, CURLOPT_SSL_CTX_DATA, ctx);
1268#endif /* EAP_TLS_OPENSSL */
1269 } else {
1270 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
1271 }
1272 if (client_cert && client_key) {
1273 curl_easy_setopt(curl, CURLOPT_SSLCERT, client_cert);
1274 curl_easy_setopt(curl, CURLOPT_SSLKEY, client_key);
1275 }
1276 /* TODO: use curl_easy_getinfo() with CURLINFO_CERTINFO to fetch
1277 * information about the server certificate */
1278 curl_easy_setopt(curl, CURLOPT_CERTINFO, 1L);
1279 curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, curl_cb_debug);
1280 curl_easy_setopt(curl, CURLOPT_DEBUGDATA, ctx);
1cb3eda9
JM		 1281 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_cb_write);
1282 curl_easy_setopt(curl, CURLOPT_WRITEDATA, ctx);
1283 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
1284 if (username) {
1285 curl_easy_setopt(curl, CURLOPT_HTTPAUTH, CURLAUTH_ANYSAFE);
1286 curl_easy_setopt(curl, CURLOPT_USERNAME, username);
1287 curl_easy_setopt(curl, CURLOPT_PASSWORD, password);
1288 }
1289
1290 return curl;
1291}
1292
1293
1294static int post_init_client(struct http_ctx *ctx, const char *address,
1295 const char *ca_fname, const char *username,
1296 const char *password, const char *client_cert,
1297 const char *client_key)
1298{
1299 char *pos;
1300 int count;
1301
1302 clone_str(&ctx->svc_address, address);
1303 clone_str(&ctx->svc_ca_fname, ca_fname);
1304 clone_str(&ctx->svc_username, username);
1305 clone_str(&ctx->svc_password, password);
1306 clone_str(&ctx->svc_client_cert, client_cert);
1307 clone_str(&ctx->svc_client_key, client_key);
1308
1309 /*
1310 * Workaround for Apache "Hostname 'FOO' provided via SNI and hostname
1311 * 'foo' provided via HTTP are different.
1312 */
1313 for (count = 0, pos = ctx->svc_address; count < 3 && pos && *pos;
1314 pos++) {
1315 if (*pos == '/')
1316 count++;
1317 *pos = tolower(*pos);
1318 }
1319
1320 ctx->curl = setup_curl_post(ctx, ctx->svc_address, ca_fname, username,
1321 password, client_cert, client_key);
1322 if (ctx->curl == NULL)
1323 return -1;
1324
1325 return 0;
1326}
1327
1328
1329int soap_init_client(struct http_ctx *ctx, const char *address,
1330 const char *ca_fname, const char *username,
1331 const char *password, const char *client_cert,
1332 const char *client_key)
1333{
1334 if (post_init_client(ctx, address, ca_fname, username, password,
1335 client_cert, client_key) < 0)
1336 return -1;
1337
1338 ctx->curl_hdr = curl_slist_append(ctx->curl_hdr,
1339 "Content-Type: application/soap+xml");
1340 ctx->curl_hdr = curl_slist_append(ctx->curl_hdr, "SOAPAction: ");
1341 ctx->curl_hdr = curl_slist_append(ctx->curl_hdr, "Expect:");
1342 curl_easy_setopt(ctx->curl, CURLOPT_HTTPHEADER, ctx->curl_hdr);
1343
1344 return 0;
1345}
1346
1347
1348int soap_reinit_client(struct http_ctx *ctx)
1349{
1350 char *address = NULL;
1351 char *ca_fname = NULL;
1352 char *username = NULL;
1353 char *password = NULL;
1354 char *client_cert = NULL;
1355 char *client_key = NULL;
1356 int ret;
1357
1358 clear_curl(ctx);
1359
1360 clone_str(&address, ctx->svc_address);
1361 clone_str(&ca_fname, ctx->svc_ca_fname);
1362 clone_str(&username, ctx->svc_username);
1363 clone_str(&password, ctx->svc_password);
1364 clone_str(&client_cert, ctx->svc_client_cert);
1365 clone_str(&client_key, ctx->svc_client_key);
1366
1367 ret = soap_init_client(ctx, address, ca_fname, username, password,
1368 client_cert, client_key);
1369 os_free(address);
1370 os_free(ca_fname);
d1ecca6c
JM		 1371 str_clear_free(username);
1372 str_clear_free(password);
1cb3eda9
JM		 1373 os_free(client_cert);
1374 os_free(client_key);
1375 return ret;
1376}
1377
1378
1379static void free_curl_buf(struct http_ctx *ctx)
1380{
1381 os_free(ctx->curl_buf);
1382 ctx->curl_buf = NULL;
1383 ctx->curl_buf_len = 0;
1384}
1385
1386
1387xml_node_t * soap_send_receive(struct http_ctx *ctx, xml_node_t *node)
1388{
1389 char *str;
1390 xml_node_t *envelope, *ret, *resp, *n;
1391 CURLcode res;
1392 long http = 0;
1393
1394 ctx->last_err = NULL;
1395
1396 wpa_printf(MSG_DEBUG, "SOAP: Sending message");
1397 envelope = soap_build_envelope(ctx->xml, node);
1398 str = xml_node_to_str(ctx->xml, envelope);
1399 xml_node_free(ctx->xml, envelope);
1400 wpa_printf(MSG_MSGDUMP, "SOAP[%s]", str);
1401
1402 curl_easy_setopt(ctx->curl, CURLOPT_POSTFIELDS, str);
1403 free_curl_buf(ctx);
1404
1405 res = curl_easy_perform(ctx->curl);
1406 if (res != CURLE_OK) {
1407 if (!ctx->last_err)
1408 ctx->last_err = curl_easy_strerror(res);
1409 wpa_printf(MSG_ERROR, "curl_easy_perform() failed: %s",
1410 ctx->last_err);
1411 os_free(str);
1412 free_curl_buf(ctx);
1413 return NULL;
1414 }
1415 os_free(str);
1416
1417 curl_easy_getinfo(ctx->curl, CURLINFO_RESPONSE_CODE, &http);
1418 wpa_printf(MSG_DEBUG, "SOAP: Server response code %ld", http);
1419 if (http != 200) {
1420 ctx->last_err = "HTTP download failed";
1421 wpa_printf(MSG_INFO, "HTTP download failed - code %ld", http);
1422 free_curl_buf(ctx);
1423 return NULL;
1424 }
1425
1426 if (ctx->curl_buf == NULL)
1427 return NULL;
1428
1429 wpa_printf(MSG_MSGDUMP, "Server response:\n%s", ctx->curl_buf);
1430 resp = xml_node_from_buf(ctx->xml, ctx->curl_buf);
1431 free_curl_buf(ctx);
1432 if (resp == NULL) {
1433 wpa_printf(MSG_INFO, "Could not parse SOAP response");
1434 ctx->last_err = "Could not parse SOAP response";
1435 return NULL;
1436 }
1437
1438 ret = soap_get_body(ctx->xml, resp);
1439 if (ret == NULL) {
1440 wpa_printf(MSG_INFO, "Could not get SOAP body");
1441 ctx->last_err = "Could not get SOAP body";
1442 return NULL;
1443 }
1444
1445 wpa_printf(MSG_DEBUG, "SOAP body localname: '%s'",
1446 xml_node_get_localname(ctx->xml, ret));
1447 n = xml_node_copy(ctx->xml, ret);
1448 xml_node_free(ctx->xml, resp);
1449
1450 return n;
1451}
1452
1453
1454struct http_ctx * http_init_ctx(void *upper_ctx, struct xml_node_ctx *xml_ctx)
1455{
1456 struct http_ctx *ctx;
1457
1458 ctx = os_zalloc(sizeof(*ctx));
1459 if (ctx == NULL)
1460 return NULL;
1461 ctx->ctx = upper_ctx;
1462 ctx->xml = xml_ctx;
1463 ctx->ocsp = OPTIONAL_OCSP;
1464
1465 curl_global_init(CURL_GLOBAL_ALL);
1466
1467 return ctx;
1468}
1469
1470
1471void http_ocsp_set(struct http_ctx *ctx, int val)
1472{
1473 if (val == 0)
1474 ctx->ocsp = NO_OCSP;
1475 else if (val == 1)
1476 ctx->ocsp = OPTIONAL_OCSP;
1477 if (val == 2)
1478 ctx->ocsp = MANDATORY_OCSP;
1479}
1480
1481
1482void http_deinit_ctx(struct http_ctx *ctx)
1483{
1484 clear_curl(ctx);
1485 os_free(ctx->curl_buf);
1486 curl_global_cleanup();
1487
1488 os_free(ctx->svc_address);
1489 os_free(ctx->svc_ca_fname);
d1ecca6c
JM		 1490 str_clear_free(ctx->svc_username);
1491 str_clear_free(ctx->svc_password);
1cb3eda9
JM		 1492 os_free(ctx->svc_client_cert);
1493 os_free(ctx->svc_client_key);
1494
1495 os_free(ctx);
1496}
1497
1498
1499int http_download_file(struct http_ctx *ctx, const char *url,
1500 const char *fname, const char *ca_fname)
1501{
1502 CURL *curl;
1503 FILE *f;
1504 CURLcode res;
1505 long http = 0;
1506
1507 ctx->last_err = NULL;
1508
1509 wpa_printf(MSG_DEBUG, "curl: Download file from %s to %s (ca=%s)",
1510 url, fname, ca_fname);
1511 curl = curl_easy_init();
1512 if (curl == NULL)
1513 return -1;
1514
1515 f = fopen(fname, "wb");
1516 if (f == NULL) {
1517 curl_easy_cleanup(curl);
1518 return -1;
1519 }
1520
1521 curl_easy_setopt(curl, CURLOPT_URL, url);
1522 if (ca_fname) {
1523 curl_easy_setopt(curl, CURLOPT_CAINFO, ca_fname);
1524 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L);
1525 curl_easy_setopt(curl, CURLOPT_CERTINFO, 1L);
1526 } else {
1527 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
1528 }
1529 curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, curl_cb_debug);
1530 curl_easy_setopt(curl, CURLOPT_DEBUGDATA, ctx);
1cb3eda9
JM		 1531 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite);
1532 curl_easy_setopt(curl, CURLOPT_WRITEDATA, f);
1533 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
1534
1535 res = curl_easy_perform(curl);
1536 if (res != CURLE_OK) {
1537 if (!ctx->last_err)
1538 ctx->last_err = curl_easy_strerror(res);
1539 wpa_printf(MSG_ERROR, "curl_easy_perform() failed: %s",
1540 ctx->last_err);
1541 curl_easy_cleanup(curl);
1542 fclose(f);
1543 return -1;
1544 }
1545
1546 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http);
1547 wpa_printf(MSG_DEBUG, "curl: Server response code %ld", http);
1548 if (http != 200) {
1549 ctx->last_err = "HTTP download failed";
1550 wpa_printf(MSG_INFO, "HTTP download failed - code %ld", http);
1551 curl_easy_cleanup(curl);
1552 fclose(f);
1553 return -1;
1554 }
1555
1556 curl_easy_cleanup(curl);
1557 fclose(f);
1558
1559 return 0;
1560}
1561
1562
1563char * http_post(struct http_ctx *ctx, const char *url, const char *data,
1564 const char *content_type, const char *ext_hdr,
1565 const char *ca_fname,
1566 const char *username, const char *password,
1567 const char *client_cert, const char *client_key,
1568 size_t *resp_len)
1569{
1570 long http = 0;
1571 CURLcode res;
1572 char *ret;
1573 CURL *curl;
1574 struct curl_slist *curl_hdr = NULL;
1575
1576 ctx->last_err = NULL;
1577 wpa_printf(MSG_DEBUG, "curl: HTTP POST to %s", url);
1578 curl = setup_curl_post(ctx, url, ca_fname, username, password,
1579 client_cert, client_key);
1580 if (curl == NULL)
1581 return NULL;
1582
1583 if (content_type) {
1584 char ct[200];
1585 snprintf(ct, sizeof(ct), "Content-Type: %s", content_type);
1586 curl_hdr = curl_slist_append(curl_hdr, ct);
1587 }
1588 if (ext_hdr)
1589 curl_hdr = curl_slist_append(curl_hdr, ext_hdr);
1590 curl_easy_setopt(curl, CURLOPT_HTTPHEADER, curl_hdr);
1591
1592 curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
1593 free_curl_buf(ctx);
1594
1595 res = curl_easy_perform(curl);
1596 if (res != CURLE_OK) {
1597 if (!ctx->last_err)
1598 ctx->last_err = curl_easy_strerror(res);
1599 wpa_printf(MSG_ERROR, "curl_easy_perform() failed: %s",
1600 ctx->last_err);
1601 free_curl_buf(ctx);
1602 return NULL;
1603 }
1604
1605 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http);
1606 wpa_printf(MSG_DEBUG, "curl: Server response code %ld", http);
1607 if (http != 200) {
1608 ctx->last_err = "HTTP POST failed";
1609 wpa_printf(MSG_INFO, "HTTP POST failed - code %ld", http);
1610 free_curl_buf(ctx);
1611 return NULL;
1612 }
1613
1614 if (ctx->curl_buf == NULL)
1615 return NULL;
1616
1617 ret = ctx->curl_buf;
1618 if (resp_len)
1619 *resp_len = ctx->curl_buf_len;
1620 ctx->curl_buf = NULL;
1621 ctx->curl_buf_len = 0;
1622
1623 wpa_printf(MSG_MSGDUMP, "Server response:\n%s", ret);
1624
1625 return ret;
1626}
1627
1628
1629void http_set_cert_cb(struct http_ctx *ctx,
1630 int (*cb)(void *ctx, struct http_cert *cert),
1631 void *cb_ctx)
1632{
1633 ctx->cert_cb = cb;
1634 ctx->cert_cb_ctx = cb_ctx;
1635}
1636
1637
1638const char * http_get_err(struct http_ctx *ctx)
1639{
1640 return ctx->last_err;
1641}
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