--- /dev/null
+/*
+ * HTTP wrapper for libcurl
+ * Copyright (c) 2012-2014, Qualcomm Atheros, Inc.
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+#include <curl/curl.h>
+#ifdef EAP_TLS_OPENSSL
+#include <openssl/ssl.h>
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/x509v3.h>
+
+#ifdef SSL_set_tlsext_status_type
+#ifndef OPENSSL_NO_TLSEXT
+#define HAVE_OCSP
+#include <openssl/err.h>
+#include <openssl/ocsp.h>
+#endif /* OPENSSL_NO_TLSEXT */
+#endif /* SSL_set_tlsext_status_type */
+#endif /* EAP_TLS_OPENSSL */
+
+#include "common.h"
+#include "xml-utils.h"
+#include "http-utils.h"
+#ifdef EAP_TLS_OPENSSL
+#include "crypto/tls_openssl.h"
+#endif /* EAP_TLS_OPENSSL */
+
+
+struct http_ctx {
+ void *ctx;
+ struct xml_node_ctx *xml;
+ CURL *curl;
+ struct curl_slist *curl_hdr;
+ char *svc_address;
+ char *svc_ca_fname;
+ char *svc_username;
+ char *svc_password;
+ char *svc_client_cert;
+ char *svc_client_key;
+ char *curl_buf;
+ size_t curl_buf_len;
+
+ int (*cert_cb)(void *ctx, struct http_cert *cert);
+ void *cert_cb_ctx;
+
+ enum {
+ NO_OCSP, OPTIONAL_OCSP, MANDATORY_OCSP
+ } ocsp;
+ X509 *peer_cert;
+ X509 *peer_issuer;
+ X509 *peer_issuer_issuer;
+
+ const char *last_err;
+};
+
+
+static void clear_curl(struct http_ctx *ctx)
+{
+ if (ctx->curl) {
+ curl_easy_cleanup(ctx->curl);
+ ctx->curl = NULL;
+ }
+ if (ctx->curl_hdr) {
+ curl_slist_free_all(ctx->curl_hdr);
+ ctx->curl_hdr = NULL;
+ }
+}
+
+
+static void clone_str(char **dst, const char *src)
+{
+ os_free(*dst);
+ if (src)
+ *dst = os_strdup(src);
+ else
+ *dst = NULL;
+}
+
+
+static void debug_dump(struct http_ctx *ctx, const char *title,
+ const char *buf, size_t len)
+{
+ char *txt;
+ size_t i;
+
+ for (i = 0; i < len; i++) {
+ if (buf[i] < 32 && buf[i] != '\t' && buf[i] != '\n' &&
+ buf[i] != '\r') {
+ wpa_hexdump_ascii(MSG_MSGDUMP, title, buf, len);
+ return;
+ }
+ }
+
+ txt = os_malloc(len + 1);
+ if (txt == NULL)
+ return;
+ os_memcpy(txt, buf, len);
+ txt[len] = '\0';
+ while (len > 0) {
+ len--;
+ if (txt[len] == '\n' || txt[len] == '\r')
+ txt[len] = '\0';
+ else
+ break;
+ }
+ wpa_printf(MSG_MSGDUMP, "%s[%s]", title, txt);
+ os_free(txt);
+}
+
+
+static int curl_cb_debug(CURL *curl, curl_infotype info, char *buf, size_t len,
+ void *userdata)
+{
+ struct http_ctx *ctx = userdata;
+ switch (info) {
+ case CURLINFO_TEXT:
+ debug_dump(ctx, "CURLINFO_TEXT", buf, len);
+ break;
+ case CURLINFO_HEADER_IN:
+ debug_dump(ctx, "CURLINFO_HEADER_IN", buf, len);
+ break;
+ case CURLINFO_HEADER_OUT:
+ debug_dump(ctx, "CURLINFO_HEADER_OUT", buf, len);
+ break;
+ case CURLINFO_DATA_IN:
+ debug_dump(ctx, "CURLINFO_DATA_IN", buf, len);
+ break;
+ case CURLINFO_DATA_OUT:
+ debug_dump(ctx, "CURLINFO_DATA_OUT", buf, len);
+ break;
+ case CURLINFO_SSL_DATA_IN:
+ wpa_printf(MSG_DEBUG, "debug - CURLINFO_SSL_DATA_IN - %d",
+ (int) len);
+ break;
+ case CURLINFO_SSL_DATA_OUT:
+ wpa_printf(MSG_DEBUG, "debug - CURLINFO_SSL_DATA_OUT - %d",
+ (int) len);
+ break;
+ case CURLINFO_END:
+ wpa_printf(MSG_DEBUG, "debug - CURLINFO_END - %d",
+ (int) len);
+ break;
+ }
+ return 0;
+}
+
+
+static size_t curl_cb_write(void *ptr, size_t size, size_t nmemb,
+ void *userdata)
+{
+ struct http_ctx *ctx = userdata;
+ char *n;
+ n = os_realloc(ctx->curl_buf, ctx->curl_buf_len + size * nmemb + 1);
+ if (n == NULL)
+ return 0;
+ ctx->curl_buf = n;
+ os_memcpy(n + ctx->curl_buf_len, ptr, size * nmemb);
+ n[ctx->curl_buf_len + size * nmemb] = '\0';
+ ctx->curl_buf_len += size * nmemb;
+ return size * nmemb;
+}
+
+
+#ifdef EAP_TLS_OPENSSL
+
+static void debug_dump_cert(const char *title, X509 *cert)
+{
+ BIO *out;
+ char *txt;
+ size_t rlen;
+
+ out = BIO_new(BIO_s_mem());
+ if (!out)
+ return;
+
+ X509_print_ex(out, cert, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
+ rlen = BIO_ctrl_pending(out);
+ txt = os_malloc(rlen + 1);
+ if (txt) {
+ int res = BIO_read(out, txt, rlen);
+ if (res > 0) {
+ txt[res] = '\0';
+ wpa_printf(MSG_MSGDUMP, "%s:\n%s", title, txt);
+ }
+ os_free(txt);
+ }
+ BIO_free(out);
+}
+
+
+static void add_alt_name_othername(struct http_ctx *ctx, struct http_cert *cert,
+ OTHERNAME *o)
+{
+ char txt[100];
+ int res;
+ struct http_othername *on;
+ ASN1_TYPE *val;
+
+ on = os_realloc_array(cert->othername, cert->num_othername + 1,
+ sizeof(struct http_othername));
+ if (on == NULL)
+ return;
+ cert->othername = on;
+ on = &on[cert->num_othername];
+ os_memset(on, 0, sizeof(*on));
+
+ res = OBJ_obj2txt(txt, sizeof(txt), o->type_id, 1);
+ if (res < 0 || res >= (int) sizeof(txt))
+ return;
+
+ on->oid = os_strdup(txt);
+ if (on->oid == NULL)
+ return;
+
+ val = o->value;
+ on->data = val->value.octet_string->data;
+ on->len = val->value.octet_string->length;
+
+ cert->num_othername++;
+}
+
+
+static void add_alt_name_dns(struct http_ctx *ctx, struct http_cert *cert,
+ ASN1_STRING *name)
+{
+ char *buf;
+ char **n;
+
+ buf = NULL;
+ if (ASN1_STRING_to_UTF8((unsigned char **) &buf, name) < 0)
+ return;
+
+ n = os_realloc_array(cert->dnsname, cert->num_dnsname + 1,
+ sizeof(char *));
+ if (n == NULL)
+ return;
+
+ cert->dnsname = n;
+ n[cert->num_dnsname] = buf;
+ cert->num_dnsname++;
+}
+
+
+static void add_alt_name(struct http_ctx *ctx, struct http_cert *cert,
+ const GENERAL_NAME *name)
+{
+ switch (name->type) {
+ case GEN_OTHERNAME:
+ add_alt_name_othername(ctx, cert, name->d.otherName);
+ break;
+ case GEN_DNS:
+ add_alt_name_dns(ctx, cert, name->d.dNSName);
+ break;
+ }
+}
+
+
+static void add_alt_names(struct http_ctx *ctx, struct http_cert *cert,
+ GENERAL_NAMES *names)
+{
+ int num, i;
+
+ num = sk_GENERAL_NAME_num(names);
+ for (i = 0; i < num; i++) {
+ const GENERAL_NAME *name;
+ name = sk_GENERAL_NAME_value(names, i);
+ add_alt_name(ctx, cert, name);
+ }
+}
+
+
+/* RFC 3709 */
+
+typedef struct {
+ X509_ALGOR *hashAlg;
+ ASN1_OCTET_STRING *hashValue;
+} HashAlgAndValue;
+
+typedef struct {
+ STACK_OF(HashAlgAndValue) *refStructHash;
+ STACK_OF(ASN1_IA5STRING) *refStructURI;
+} LogotypeReference;
+
+typedef struct {
+ ASN1_IA5STRING *mediaType;
+ STACK_OF(HashAlgAndValue) *logotypeHash;
+ STACK_OF(ASN1_IA5STRING) *logotypeURI;
+} LogotypeDetails;
+
+typedef struct {
+ int type;
+ union {
+ ASN1_INTEGER *numBits;
+ ASN1_INTEGER *tableSize;
+ } d;
+} LogotypeImageResolution;
+
+typedef struct {
+ ASN1_INTEGER *type; /* LogotypeImageType ::= INTEGER */
+ ASN1_INTEGER *fileSize;
+ ASN1_INTEGER *xSize;
+ ASN1_INTEGER *ySize;
+ LogotypeImageResolution *resolution;
+ ASN1_IA5STRING *language;
+} LogotypeImageInfo;
+
+typedef struct {
+ LogotypeDetails *imageDetails;
+ LogotypeImageInfo *imageInfo;
+} LogotypeImage;
+
+typedef struct {
+ ASN1_INTEGER *fileSize;
+ ASN1_INTEGER *playTime;
+ ASN1_INTEGER *channels;
+ ASN1_INTEGER *sampleRate;
+ ASN1_IA5STRING *language;
+} LogotypeAudioInfo;
+
+typedef struct {
+ LogotypeDetails *audioDetails;
+ LogotypeAudioInfo *audioInfo;
+} LogotypeAudio;
+
+typedef struct {
+ STACK_OF(LogotypeImage) *image;
+ STACK_OF(LogotypeAudio) *audio;
+} LogotypeData;
+
+typedef struct {
+ int type;
+ union {
+ LogotypeData *direct;
+ LogotypeReference *indirect;
+ } d;
+} LogotypeInfo;
+
+typedef struct {
+ ASN1_OBJECT *logotypeType;
+ LogotypeInfo *info;
+} OtherLogotypeInfo;
+
+typedef struct {
+ STACK_OF(LogotypeInfo) *communityLogos;
+ LogotypeInfo *issuerLogo;
+ LogotypeInfo *subjectLogo;
+ STACK_OF(OtherLogotypeInfo) *otherLogos;
+} LogotypeExtn;
+
+ASN1_SEQUENCE(HashAlgAndValue) = {
+ ASN1_SIMPLE(HashAlgAndValue, hashAlg, X509_ALGOR),
+ ASN1_SIMPLE(HashAlgAndValue, hashValue, ASN1_OCTET_STRING)
+} ASN1_SEQUENCE_END(HashAlgAndValue);
+
+ASN1_SEQUENCE(LogotypeReference) = {
+ ASN1_SEQUENCE_OF(LogotypeReference, refStructHash, HashAlgAndValue),
+ ASN1_SEQUENCE_OF(LogotypeReference, refStructURI, ASN1_IA5STRING)
+} ASN1_SEQUENCE_END(LogotypeReference);
+
+ASN1_SEQUENCE(LogotypeDetails) = {
+ ASN1_SIMPLE(LogotypeDetails, mediaType, ASN1_IA5STRING),
+ ASN1_SEQUENCE_OF(LogotypeDetails, logotypeHash, HashAlgAndValue),
+ ASN1_SEQUENCE_OF(LogotypeDetails, logotypeURI, ASN1_IA5STRING)
+} ASN1_SEQUENCE_END(LogotypeDetails);
+
+ASN1_CHOICE(LogotypeImageResolution) = {
+ ASN1_IMP(LogotypeImageResolution, d.numBits, ASN1_INTEGER, 1),
+ ASN1_IMP(LogotypeImageResolution, d.tableSize, ASN1_INTEGER, 2)
+} ASN1_CHOICE_END(LogotypeImageResolution);
+
+ASN1_SEQUENCE(LogotypeImageInfo) = {
+ ASN1_IMP_OPT(LogotypeImageInfo, type, ASN1_INTEGER, 0),
+ ASN1_SIMPLE(LogotypeImageInfo, fileSize, ASN1_INTEGER),
+ ASN1_SIMPLE(LogotypeImageInfo, xSize, ASN1_INTEGER),
+ ASN1_SIMPLE(LogotypeImageInfo, ySize, ASN1_INTEGER),
+ ASN1_OPT(LogotypeImageInfo, resolution, LogotypeImageResolution),
+ ASN1_IMP_OPT(LogotypeImageInfo, language, ASN1_IA5STRING, 4),
+} ASN1_SEQUENCE_END(LogotypeImageInfo);
+
+ASN1_SEQUENCE(LogotypeImage) = {
+ ASN1_SIMPLE(LogotypeImage, imageDetails, LogotypeDetails),
+ ASN1_OPT(LogotypeImage, imageInfo, LogotypeImageInfo)
+} ASN1_SEQUENCE_END(LogotypeImage);
+
+ASN1_SEQUENCE(LogotypeAudioInfo) = {
+ ASN1_SIMPLE(LogotypeAudioInfo, fileSize, ASN1_INTEGER),
+ ASN1_SIMPLE(LogotypeAudioInfo, playTime, ASN1_INTEGER),
+ ASN1_SIMPLE(LogotypeAudioInfo, channels, ASN1_INTEGER),
+ ASN1_IMP_OPT(LogotypeAudioInfo, sampleRate, ASN1_INTEGER, 3),
+ ASN1_IMP_OPT(LogotypeAudioInfo, language, ASN1_IA5STRING, 4)
+} ASN1_SEQUENCE_END(LogotypeAudioInfo);
+
+ASN1_SEQUENCE(LogotypeAudio) = {
+ ASN1_SIMPLE(LogotypeAudio, audioDetails, LogotypeDetails),
+ ASN1_OPT(LogotypeAudio, audioInfo, LogotypeAudioInfo)
+} ASN1_SEQUENCE_END(LogotypeAudio);
+
+ASN1_SEQUENCE(LogotypeData) = {
+ ASN1_SEQUENCE_OF_OPT(LogotypeData, image, LogotypeImage),
+ ASN1_IMP_SEQUENCE_OF_OPT(LogotypeData, audio, LogotypeAudio, 1)
+} ASN1_SEQUENCE_END(LogotypeData);
+
+ASN1_CHOICE(LogotypeInfo) = {
+ ASN1_IMP(LogotypeInfo, d.direct, LogotypeData, 0),
+ ASN1_IMP(LogotypeInfo, d.indirect, LogotypeReference, 1)
+} ASN1_CHOICE_END(LogotypeInfo);
+
+ASN1_SEQUENCE(OtherLogotypeInfo) = {
+ ASN1_SIMPLE(OtherLogotypeInfo, logotypeType, ASN1_OBJECT),
+ ASN1_SIMPLE(OtherLogotypeInfo, info, LogotypeInfo)
+} ASN1_SEQUENCE_END(OtherLogotypeInfo);
+
+ASN1_SEQUENCE(LogotypeExtn) = {
+ ASN1_EXP_SEQUENCE_OF_OPT(LogotypeExtn, communityLogos, LogotypeInfo, 0),
+ ASN1_EXP_OPT(LogotypeExtn, issuerLogo, LogotypeInfo, 1),
+ ASN1_EXP_OPT(LogotypeExtn, issuerLogo, LogotypeInfo, 2),
+ ASN1_EXP_SEQUENCE_OF_OPT(LogotypeExtn, otherLogos, OtherLogotypeInfo, 3)
+} ASN1_SEQUENCE_END(LogotypeExtn);
+
+IMPLEMENT_ASN1_FUNCTIONS(LogotypeExtn);
+
+#ifdef OPENSSL_IS_BORINGSSL
+#define sk_LogotypeInfo_num(st) \
+sk_num(CHECKED_CAST(_STACK *, STACK_OF(LogotypeInfo) *, (st)))
+#define sk_LogotypeInfo_value(st, i) (LogotypeInfo *) \
+sk_value(CHECKED_CAST(_STACK *, const STACK_OF(LogotypeInfo) *, (st)), (i))
+#define sk_LogotypeImage_num(st) \
+sk_num(CHECKED_CAST(_STACK *, STACK_OF(LogotypeImage) *, (st)))
+#define sk_LogotypeImage_value(st, i) (LogotypeImage *) \
+sk_value(CHECKED_CAST(_STACK *, const STACK_OF(LogotypeImage) *, (st)), (i))
+#define sk_LogotypeAudio_num(st) \
+sk_num(CHECKED_CAST(_STACK *, STACK_OF(LogotypeAudio) *, (st)))
+#define sk_LogotypeAudio_value(st, i) (LogotypeAudio *) \
+sk_value(CHECK_CAST(_STACK *, const STACK_OF(LogotypeAudio) *, (st)), (i))
+#define sk_HashAlgAndValue_num(st) \
+sk_num(CHECKED_CAST(_STACK *, STACK_OF(HashAlgAndValue) *, (st)))
+#define sk_HashAlgAndValue_value(st, i) (HashAlgAndValue *) \
+sk_value(CHECKED_CAST(_STACK *, const STACK_OF(HashAlgAndValue) *, (st)), (i))
+#define sk_ASN1_IA5STRING_num(st) \
+sk_num(CHECKED_CAST(_STACK *, STACK_OF(ASN1_IA5STRING) *, (st)))
+#define sk_ASN1_IA5STRING_value(st, i) (ASN1_IA5STRING *) \
+sk_value(CHECKED_CAST(_STACK *, const STACK_OF(ASN1_IA5STRING) *, (st)), (i))
+#else /* OPENSSL_IS_BORINGSSL */
+#define sk_LogotypeInfo_num(st) SKM_sk_num(LogotypeInfo, (st))
+#define sk_LogotypeInfo_value(st, i) SKM_sk_value(LogotypeInfo, (st), (i))
+#define sk_LogotypeImage_num(st) SKM_sk_num(LogotypeImage, (st))
+#define sk_LogotypeImage_value(st, i) SKM_sk_value(LogotypeImage, (st), (i))
+#define sk_LogotypeAudio_num(st) SKM_sk_num(LogotypeAudio, (st))
+#define sk_LogotypeAudio_value(st, i) SKM_sk_value(LogotypeAudio, (st), (i))
+#define sk_HashAlgAndValue_num(st) SKM_sk_num(HashAlgAndValue, (st))
+#define sk_HashAlgAndValue_value(st, i) SKM_sk_value(HashAlgAndValue, (st), (i))
+#define sk_ASN1_IA5STRING_num(st) SKM_sk_num(ASN1_IA5STRING, (st))
+#define sk_ASN1_IA5STRING_value(st, i) SKM_sk_value(ASN1_IA5STRING, (st), (i))
+#endif /* OPENSSL_IS_BORINGSSL */
+
+
+static void add_logo(struct http_ctx *ctx, struct http_cert *hcert,
+ HashAlgAndValue *hash, ASN1_IA5STRING *uri)
+{
+ char txt[100];
+ int res, len;
+ struct http_logo *n;
+
+ if (hash == NULL || uri == NULL)
+ return;
+
+ res = OBJ_obj2txt(txt, sizeof(txt), hash->hashAlg->algorithm, 1);
+ if (res < 0 || res >= (int) sizeof(txt))
+ return;
+
+ n = os_realloc_array(hcert->logo, hcert->num_logo + 1,
+ sizeof(struct http_logo));
+ if (n == NULL)
+ return;
+ hcert->logo = n;
+ n = &hcert->logo[hcert->num_logo];
+ os_memset(n, 0, sizeof(*n));
+
+ n->alg_oid = os_strdup(txt);
+ if (n->alg_oid == NULL)
+ return;
+
+ n->hash_len = ASN1_STRING_length(hash->hashValue);
+ n->hash = os_malloc(n->hash_len);
+ if (n->hash == NULL) {
+ os_free(n->alg_oid);
+ return;
+ }
+ os_memcpy(n->hash, ASN1_STRING_data(hash->hashValue), n->hash_len);
+
+ len = ASN1_STRING_length(uri);
+ n->uri = os_malloc(len + 1);
+ if (n->uri == NULL) {
+ os_free(n->alg_oid);
+ os_free(n->hash);
+ return;
+ }
+ os_memcpy(n->uri, ASN1_STRING_data(uri), len);
+ n->uri[len] = '\0';
+
+ hcert->num_logo++;
+}
+
+
+static void add_logo_direct(struct http_ctx *ctx, struct http_cert *hcert,
+ LogotypeData *data)
+{
+ int i, num;
+
+ if (data->image == NULL)
+ return;
+
+ num = sk_LogotypeImage_num(data->image);
+ for (i = 0; i < num; i++) {
+ LogotypeImage *image;
+ LogotypeDetails *details;
+ int j, hash_num, uri_num;
+ HashAlgAndValue *found_hash = NULL;
+
+ image = sk_LogotypeImage_value(data->image, i);
+ if (image == NULL)
+ continue;
+
+ details = image->imageDetails;
+ if (details == NULL)
+ continue;
+
+ hash_num = sk_HashAlgAndValue_num(details->logotypeHash);
+ for (j = 0; j < hash_num; j++) {
+ HashAlgAndValue *hash;
+ char txt[100];
+ int res;
+ hash = sk_HashAlgAndValue_value(details->logotypeHash,
+ j);
+ if (hash == NULL)
+ continue;
+ res = OBJ_obj2txt(txt, sizeof(txt),
+ hash->hashAlg->algorithm, 1);
+ if (res < 0 || res >= (int) sizeof(txt))
+ continue;
+ if (os_strcmp(txt, "2.16.840.1.101.3.4.2.1") == 0) {
+ found_hash = hash;
+ break;
+ }
+ }
+
+ if (!found_hash) {
+ wpa_printf(MSG_DEBUG, "OpenSSL: No SHA256 hash found for the logo");
+ continue;
+ }
+
+ uri_num = sk_ASN1_IA5STRING_num(details->logotypeURI);
+ for (j = 0; j < uri_num; j++) {
+ ASN1_IA5STRING *uri;
+ uri = sk_ASN1_IA5STRING_value(details->logotypeURI, j);
+ add_logo(ctx, hcert, found_hash, uri);
+ }
+ }
+}
+
+
+static void add_logo_indirect(struct http_ctx *ctx, struct http_cert *hcert,
+ LogotypeReference *ref)
+{
+ int j, hash_num, uri_num;
+
+ hash_num = sk_HashAlgAndValue_num(ref->refStructHash);
+ uri_num = sk_ASN1_IA5STRING_num(ref->refStructURI);
+ if (hash_num != uri_num) {
+ wpa_printf(MSG_INFO, "Unexpected LogotypeReference array size difference %d != %d",
+ hash_num, uri_num);
+ return;
+ }
+
+ for (j = 0; j < hash_num; j++) {
+ HashAlgAndValue *hash;
+ ASN1_IA5STRING *uri;
+ hash = sk_HashAlgAndValue_value(ref->refStructHash, j);
+ uri = sk_ASN1_IA5STRING_value(ref->refStructURI, j);
+ add_logo(ctx, hcert, hash, uri);
+ }
+}
+
+
+static void i2r_HashAlgAndValue(HashAlgAndValue *hash, BIO *out, int indent)
+{
+ int i;
+ const unsigned char *data;
+
+ BIO_printf(out, "%*shashAlg: ", indent, "");
+ i2a_ASN1_OBJECT(out, hash->hashAlg->algorithm);
+ BIO_printf(out, "\n");
+
+ BIO_printf(out, "%*shashValue: ", indent, "");
+ data = hash->hashValue->data;
+ for (i = 0; i < hash->hashValue->length; i++)
+ BIO_printf(out, "%s%02x", i > 0 ? ":" : "", data[i]);
+ BIO_printf(out, "\n");
+}
+
+static void i2r_LogotypeDetails(LogotypeDetails *details, BIO *out, int indent)
+{
+ int i, num;
+
+ BIO_printf(out, "%*sLogotypeDetails\n", indent, "");
+ if (details->mediaType) {
+ BIO_printf(out, "%*smediaType: ", indent, "");
+ ASN1_STRING_print(out, details->mediaType);
+ BIO_printf(out, "\n");
+ }
+
+ num = details->logotypeHash ?
+ sk_HashAlgAndValue_num(details->logotypeHash) : 0;
+ for (i = 0; i < num; i++) {
+ HashAlgAndValue *hash;
+ hash = sk_HashAlgAndValue_value(details->logotypeHash, i);
+ i2r_HashAlgAndValue(hash, out, indent);
+ }
+
+ num = details->logotypeURI ?
+ sk_ASN1_IA5STRING_num(details->logotypeURI) : 0;
+ for (i = 0; i < num; i++) {
+ ASN1_IA5STRING *uri;
+ uri = sk_ASN1_IA5STRING_value(details->logotypeURI, i);
+ BIO_printf(out, "%*slogotypeURI: ", indent, "");
+ ASN1_STRING_print(out, uri);
+ BIO_printf(out, "\n");
+ }
+}
+
+static void i2r_LogotypeImageInfo(LogotypeImageInfo *info, BIO *out, int indent)
+{
+ long val;
+
+ BIO_printf(out, "%*sLogotypeImageInfo\n", indent, "");
+ if (info->type) {
+ val = ASN1_INTEGER_get(info->type);
+ BIO_printf(out, "%*stype: %ld\n", indent, "", val);
+ } else {
+ BIO_printf(out, "%*stype: default (1)\n", indent, "");
+ }
+ val = ASN1_INTEGER_get(info->fileSize);
+ BIO_printf(out, "%*sfileSize: %ld\n", indent, "", val);
+ val = ASN1_INTEGER_get(info->xSize);
+ BIO_printf(out, "%*sxSize: %ld\n", indent, "", val);
+ val = ASN1_INTEGER_get(info->ySize);
+ BIO_printf(out, "%*sySize: %ld\n", indent, "", val);
+ if (info->resolution) {
+ BIO_printf(out, "%*sresolution [%d]\n", indent, "",
+ info->resolution->type);
+ switch (info->resolution->type) {
+ case 0:
+ val = ASN1_INTEGER_get(info->resolution->d.numBits);
+ BIO_printf(out, "%*snumBits: %ld\n", indent, "", val);
+ break;
+ case 1:
+ val = ASN1_INTEGER_get(info->resolution->d.tableSize);
+ BIO_printf(out, "%*stableSize: %ld\n", indent, "", val);
+ break;
+ }
+ }
+ if (info->language) {
+ BIO_printf(out, "%*slanguage: ", indent, "");
+ ASN1_STRING_print(out, info->language);
+ BIO_printf(out, "\n");
+ }
+}
+
+static void i2r_LogotypeImage(LogotypeImage *image, BIO *out, int indent)
+{
+ BIO_printf(out, "%*sLogotypeImage\n", indent, "");
+ if (image->imageDetails) {
+ i2r_LogotypeDetails(image->imageDetails, out, indent + 4);
+ }
+ if (image->imageInfo) {
+ i2r_LogotypeImageInfo(image->imageInfo, out, indent + 4);
+ }
+}
+
+static void i2r_LogotypeData(LogotypeData *data, const char *title, BIO *out,
+ int indent)
+{
+ int i, num;
+
+ BIO_printf(out, "%*s%s - LogotypeData\n", indent, "", title);
+
+ num = data->image ? sk_LogotypeImage_num(data->image) : 0;
+ for (i = 0; i < num; i++) {
+ LogotypeImage *image = sk_LogotypeImage_value(data->image, i);
+ i2r_LogotypeImage(image, out, indent + 4);
+ }
+
+ num = data->audio ? sk_LogotypeAudio_num(data->audio) : 0;
+ for (i = 0; i < num; i++) {
+ BIO_printf(out, "%*saudio: TODO\n", indent, "");
+ }
+}
+
+static void i2r_LogotypeReference(LogotypeReference *ref, const char *title,
+ BIO *out, int indent)
+{
+ int i, hash_num, uri_num;
+
+ BIO_printf(out, "%*s%s - LogotypeReference\n", indent, "", title);
+
+ hash_num = ref->refStructHash ?
+ sk_HashAlgAndValue_num(ref->refStructHash) : 0;
+ uri_num = ref->refStructURI ?
+ sk_ASN1_IA5STRING_num(ref->refStructURI) : 0;
+ if (hash_num != uri_num) {
+ BIO_printf(out, "%*sUnexpected LogotypeReference array size difference %d != %d\n",
+ indent, "", hash_num, uri_num);
+ return;
+ }
+
+ for (i = 0; i < hash_num; i++) {
+ HashAlgAndValue *hash;
+ ASN1_IA5STRING *uri;
+
+ hash = sk_HashAlgAndValue_value(ref->refStructHash, i);
+ i2r_HashAlgAndValue(hash, out, indent);
+
+ uri = sk_ASN1_IA5STRING_value(ref->refStructURI, i);
+ BIO_printf(out, "%*srefStructURI: ", indent, "");
+ ASN1_STRING_print(out, uri);
+ BIO_printf(out, "\n");
+ }
+}
+
+static void i2r_LogotypeInfo(LogotypeInfo *info, const char *title, BIO *out,
+ int indent)
+{
+ switch (info->type) {
+ case 0:
+ i2r_LogotypeData(info->d.direct, title, out, indent);
+ break;
+ case 1:
+ i2r_LogotypeReference(info->d.indirect, title, out, indent);
+ break;
+ }
+}
+
+static void debug_print_logotypeext(LogotypeExtn *logo)
+{
+ BIO *out;
+ int i, num;
+ int indent = 0;
+
+ out = BIO_new_fp(stdout, BIO_NOCLOSE);
+ if (out == NULL)
+ return;
+
+ if (logo->communityLogos) {
+ num = sk_LogotypeInfo_num(logo->communityLogos);
+ for (i = 0; i < num; i++) {
+ LogotypeInfo *info;
+ info = sk_LogotypeInfo_value(logo->communityLogos, i);
+ i2r_LogotypeInfo(info, "communityLogo", out, indent);
+ }
+ }
+
+ if (logo->issuerLogo) {
+ i2r_LogotypeInfo(logo->issuerLogo, "issuerLogo", out, indent );
+ }
+
+ if (logo->subjectLogo) {
+ i2r_LogotypeInfo(logo->subjectLogo, "subjectLogo", out, indent);
+ }
+
+ if (logo->otherLogos) {
+ BIO_printf(out, "%*sotherLogos - TODO\n", indent, "");
+ }
+
+ BIO_free(out);
+}
+
+
+static void add_logotype_ext(struct http_ctx *ctx, struct http_cert *hcert,
+ X509 *cert)
+{
+ ASN1_OBJECT *obj;
+ int pos;
+ X509_EXTENSION *ext;
+ ASN1_OCTET_STRING *os;
+ LogotypeExtn *logo;
+ const unsigned char *data;
+ int i, num;
+
+ obj = OBJ_txt2obj("1.3.6.1.5.5.7.1.12", 0);
+ if (obj == NULL)
+ return;
+
+ pos = X509_get_ext_by_OBJ(cert, obj, -1);
+ if (pos < 0) {
+ wpa_printf(MSG_INFO, "No logotype extension included");
+ return;
+ }
+
+ wpa_printf(MSG_INFO, "Parsing logotype extension");
+ ext = X509_get_ext(cert, pos);
+ if (!ext) {
+ wpa_printf(MSG_INFO, "Could not get logotype extension");
+ return;
+ }
+
+ os = X509_EXTENSION_get_data(ext);
+ if (os == NULL) {
+ wpa_printf(MSG_INFO, "Could not get logotype extension data");
+ return;
+ }
+
+ wpa_hexdump(MSG_DEBUG, "logotypeExtn",
+ ASN1_STRING_data(os), ASN1_STRING_length(os));
+
+ data = ASN1_STRING_data(os);
+ logo = d2i_LogotypeExtn(NULL, &data, ASN1_STRING_length(os));
+ if (logo == NULL) {
+ wpa_printf(MSG_INFO, "Failed to parse logotypeExtn");
+ return;
+ }
+
+ if (wpa_debug_level < MSG_INFO)
+ debug_print_logotypeext(logo);
+
+ if (!logo->communityLogos) {
+ wpa_printf(MSG_INFO, "No communityLogos included");
+ LogotypeExtn_free(logo);
+ return;
+ }
+
+ num = sk_LogotypeInfo_num(logo->communityLogos);
+ for (i = 0; i < num; i++) {
+ LogotypeInfo *info;
+ info = sk_LogotypeInfo_value(logo->communityLogos, i);
+ switch (info->type) {
+ case 0:
+ add_logo_direct(ctx, hcert, info->d.direct);
+ break;
+ case 1:
+ add_logo_indirect(ctx, hcert, info->d.indirect);
+ break;
+ }
+ }
+
+ LogotypeExtn_free(logo);
+}
+
+
+static void parse_cert(struct http_ctx *ctx, struct http_cert *hcert,
+ X509 *cert, GENERAL_NAMES **names)
+{
+ os_memset(hcert, 0, sizeof(*hcert));
+
+ *names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
+ if (*names)
+ add_alt_names(ctx, hcert, *names);
+
+ add_logotype_ext(ctx, hcert, cert);
+}
+
+
+static void parse_cert_free(struct http_cert *hcert, GENERAL_NAMES *names)
+{
+ unsigned int i;
+
+ for (i = 0; i < hcert->num_dnsname; i++)
+ OPENSSL_free(hcert->dnsname[i]);
+ os_free(hcert->dnsname);
+
+ for (i = 0; i < hcert->num_othername; i++)
+ os_free(hcert->othername[i].oid);
+ os_free(hcert->othername);
+
+ for (i = 0; i < hcert->num_logo; i++) {
+ os_free(hcert->logo[i].alg_oid);
+ os_free(hcert->logo[i].hash);
+ os_free(hcert->logo[i].uri);
+ }
+ os_free(hcert->logo);
+
+ sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
+}
+
+
+static int validate_server_cert(struct http_ctx *ctx, X509 *cert)
+{
+ GENERAL_NAMES *names;
+ struct http_cert hcert;
+ int ret;
+
+ if (ctx->cert_cb == NULL) {
+ wpa_printf(MSG_DEBUG, "%s: no cert_cb configured", __func__);
+ return 0;
+ }
+
+ if (0) {
+ BIO *out;
+ out = BIO_new_fp(stdout, BIO_NOCLOSE);
+ X509_print_ex(out, cert, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
+ BIO_free(out);
+ }
+
+ parse_cert(ctx, &hcert, cert, &names);
+ ret = ctx->cert_cb(ctx->cert_cb_ctx, &hcert);
+ parse_cert_free(&hcert, names);
+
+ return ret;
+}
+
+
+void http_parse_x509_certificate(struct http_ctx *ctx, const char *fname)
+{
+ BIO *in, *out;
+ X509 *cert;
+ GENERAL_NAMES *names;
+ struct http_cert hcert;
+ unsigned int i;
+
+ in = BIO_new_file(fname, "r");
+ if (in == NULL) {
+ wpa_printf(MSG_ERROR, "Could not read '%s'", fname);
+ return;
+ }
+
+ cert = d2i_X509_bio(in, NULL);
+ BIO_free(in);
+
+ if (cert == NULL) {
+ wpa_printf(MSG_ERROR, "Could not parse certificate");
+ return;
+ }
+
+ out = BIO_new_fp(stdout, BIO_NOCLOSE);
+ if (out) {
+ X509_print_ex(out, cert, XN_FLAG_COMPAT,
+ X509_FLAG_COMPAT);
+ BIO_free(out);
+ }
+
+ wpa_printf(MSG_INFO, "Additional parsing information:");
+ parse_cert(ctx, &hcert, cert, &names);
+ for (i = 0; i < hcert.num_othername; i++) {
+ if (os_strcmp(hcert.othername[i].oid,
+ "1.3.6.1.4.1.40808.1.1.1") == 0) {
+ char *name = os_zalloc(hcert.othername[i].len + 1);
+ if (name) {
+ os_memcpy(name, hcert.othername[i].data,
+ hcert.othername[i].len);
+ wpa_printf(MSG_INFO,
+ "id-wfa-hotspot-friendlyName: %s",
+ name);
+ os_free(name);
+ }
+ wpa_hexdump_ascii(MSG_INFO,
+ "id-wfa-hotspot-friendlyName",
+ hcert.othername[i].data,
+ hcert.othername[i].len);
+ } else {
+ wpa_printf(MSG_INFO, "subjAltName[othername]: oid=%s",
+ hcert.othername[i].oid);
+ wpa_hexdump_ascii(MSG_INFO, "unknown othername",
+ hcert.othername[i].data,
+ hcert.othername[i].len);
+ }
+ }
+ parse_cert_free(&hcert, names);
+
+ X509_free(cert);
+}
+
+
+static int curl_cb_ssl_verify(int preverify_ok, X509_STORE_CTX *x509_ctx)
+{
+ struct http_ctx *ctx;
+ X509 *cert;
+ int err, depth;
+ char buf[256];
+ X509_NAME *name;
+ const char *err_str;
+ SSL *ssl;
+ SSL_CTX *ssl_ctx;
+
+ ssl = X509_STORE_CTX_get_ex_data(x509_ctx,
+ SSL_get_ex_data_X509_STORE_CTX_idx());
+ ssl_ctx = ssl->ctx;
+ ctx = SSL_CTX_get_app_data(ssl_ctx);
+
+ wpa_printf(MSG_DEBUG, "curl_cb_ssl_verify, preverify_ok: %d",
+ preverify_ok);
+
+ err = X509_STORE_CTX_get_error(x509_ctx);
+ err_str = X509_verify_cert_error_string(err);
+ depth = X509_STORE_CTX_get_error_depth(x509_ctx);
+ cert = X509_STORE_CTX_get_current_cert(x509_ctx);
+ if (!cert) {
+ wpa_printf(MSG_INFO, "No server certificate available");
+ ctx->last_err = "No server certificate available";
+ return 0;
+ }
+
+ if (depth == 0)
+ ctx->peer_cert = cert;
+ else if (depth == 1)
+ ctx->peer_issuer = cert;
+ else if (depth == 2)
+ ctx->peer_issuer_issuer = cert;
+
+ name = X509_get_subject_name(cert);
+ X509_NAME_oneline(name, buf, sizeof(buf));
+ wpa_printf(MSG_INFO, "Server certificate chain - depth=%d err=%d (%s) subject=%s",
+ depth, err, err_str, buf);
+ debug_dump_cert("Server certificate chain - certificate", cert);
+
+ if (depth == 0 && preverify_ok && validate_server_cert(ctx, cert) < 0)
+ return 0;
+
+#ifdef OPENSSL_IS_BORINGSSL
+ if (depth == 0 && ctx->ocsp != NO_OCSP && preverify_ok) {
+ enum ocsp_result res;
+
+ res = check_ocsp_resp(ssl_ctx, ssl, cert, ctx->peer_issuer,
+ ctx->peer_issuer_issuer);
+ if (res == OCSP_REVOKED) {
+ preverify_ok = 0;
+ wpa_printf(MSG_INFO, "OCSP: certificate revoked");
+ if (err == X509_V_OK)
+ X509_STORE_CTX_set_error(
+ x509_ctx, X509_V_ERR_CERT_REVOKED);
+ } else if (res != OCSP_GOOD && (ctx->ocsp == MANDATORY_OCSP)) {
+ preverify_ok = 0;
+ wpa_printf(MSG_INFO,
+ "OCSP: bad certificate status response");
+ }
+ }
+#endif /* OPENSSL_IS_BORINGSSL */
+
+ if (!preverify_ok)
+ ctx->last_err = "TLS validation failed";
+
+ return preverify_ok;
+}
+
+
+#ifdef HAVE_OCSP
+
+static void ocsp_debug_print_resp(OCSP_RESPONSE *rsp)
+{
+ BIO *out;
+ size_t rlen;
+ char *txt;
+ int res;
+
+ out = BIO_new(BIO_s_mem());
+ if (!out)
+ return;
+
+ OCSP_RESPONSE_print(out, rsp, 0);
+ rlen = BIO_ctrl_pending(out);
+ txt = os_malloc(rlen + 1);
+ if (!txt) {
+ BIO_free(out);
+ return;
+ }
+
+ res = BIO_read(out, txt, rlen);
+ if (res > 0) {
+ txt[res] = '\0';
+ wpa_printf(MSG_MSGDUMP, "OpenSSL: OCSP Response\n%s", txt);
+ }
+ os_free(txt);
+ BIO_free(out);
+}
+
+
+static void tls_show_errors(const char *func, const char *txt)
+{
+ unsigned long err;
+
+ wpa_printf(MSG_DEBUG, "OpenSSL: %s - %s %s",
+ func, txt, ERR_error_string(ERR_get_error(), NULL));
+
+ while ((err = ERR_get_error())) {
+ wpa_printf(MSG_DEBUG, "OpenSSL: pending error: %s",
+ ERR_error_string(err, NULL));
+ }
+}
+
+
+static int ocsp_resp_cb(SSL *s, void *arg)
+{
+ struct http_ctx *ctx = arg;
+ const unsigned char *p;
+ int len, status, reason;
+ OCSP_RESPONSE *rsp;
+ OCSP_BASICRESP *basic;
+ OCSP_CERTID *id;
+ ASN1_GENERALIZEDTIME *produced_at, *this_update, *next_update;
+ X509_STORE *store;
+ STACK_OF(X509) *certs = NULL;
+
+ len = SSL_get_tlsext_status_ocsp_resp(s, &p);
+ if (!p) {
+ wpa_printf(MSG_DEBUG, "OpenSSL: No OCSP response received");
+ if (ctx->ocsp == MANDATORY_OCSP)
+ ctx->last_err = "No OCSP response received";
+ return (ctx->ocsp == MANDATORY_OCSP) ? 0 : 1;
+ }
+
+ wpa_hexdump(MSG_DEBUG, "OpenSSL: OCSP response", p, len);
+
+ rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
+ if (!rsp) {
+ wpa_printf(MSG_INFO, "OpenSSL: Failed to parse OCSP response");
+ ctx->last_err = "Failed to parse OCSP response";
+ return 0;
+ }
+
+ ocsp_debug_print_resp(rsp);
+
+ status = OCSP_response_status(rsp);
+ if (status != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
+ wpa_printf(MSG_INFO, "OpenSSL: OCSP responder error %d (%s)",
+ status, OCSP_response_status_str(status));
+ ctx->last_err = "OCSP responder error";
+ return 0;
+ }
+
+ basic = OCSP_response_get1_basic(rsp);
+ if (!basic) {
+ wpa_printf(MSG_INFO, "OpenSSL: Could not find BasicOCSPResponse");
+ ctx->last_err = "Could not find BasicOCSPResponse";
+ return 0;
+ }
+
+ store = SSL_CTX_get_cert_store(s->ctx);
+ if (ctx->peer_issuer) {
+ wpa_printf(MSG_DEBUG, "OpenSSL: Add issuer");
+ debug_dump_cert("OpenSSL: Issuer certificate",
+ ctx->peer_issuer);
+
+ if (X509_STORE_add_cert(store, ctx->peer_issuer) != 1) {
+ tls_show_errors(__func__,
+ "OpenSSL: Could not add issuer to certificate store");
+ }
+ certs = sk_X509_new_null();
+ if (certs) {
+ X509 *cert;
+ cert = X509_dup(ctx->peer_issuer);
+ if (cert && !sk_X509_push(certs, cert)) {
+ tls_show_errors(
+ __func__,
+ "OpenSSL: Could not add issuer to OCSP responder trust store");
+ X509_free(cert);
+ sk_X509_free(certs);
+ certs = NULL;
+ }
+ if (certs && ctx->peer_issuer_issuer) {
+ cert = X509_dup(ctx->peer_issuer_issuer);
+ if (cert && !sk_X509_push(certs, cert)) {
+ tls_show_errors(
+ __func__,
+ "OpenSSL: Could not add issuer's issuer to OCSP responder trust store");
+ X509_free(cert);
+ }
+ }
+ }
+ }
+
+ status = OCSP_basic_verify(basic, certs, store, OCSP_TRUSTOTHER);
+ sk_X509_pop_free(certs, X509_free);
+ if (status <= 0) {
+ tls_show_errors(__func__,
+ "OpenSSL: OCSP response failed verification");
+ OCSP_BASICRESP_free(basic);
+ OCSP_RESPONSE_free(rsp);
+ ctx->last_err = "OCSP response failed verification";
+ return 0;
+ }
+
+ wpa_printf(MSG_DEBUG, "OpenSSL: OCSP response verification succeeded");
+
+ if (!ctx->peer_cert) {
+ wpa_printf(MSG_DEBUG, "OpenSSL: Peer certificate not available for OCSP status check");
+ OCSP_BASICRESP_free(basic);
+ OCSP_RESPONSE_free(rsp);
+ ctx->last_err = "Peer certificate not available for OCSP status check";
+ return 0;
+ }
+
+ if (!ctx->peer_issuer) {
+ wpa_printf(MSG_DEBUG, "OpenSSL: Peer issuer certificate not available for OCSP status check");
+ OCSP_BASICRESP_free(basic);
+ OCSP_RESPONSE_free(rsp);
+ ctx->last_err = "Peer issuer certificate not available for OCSP status check";
+ return 0;
+ }
+
+ id = OCSP_cert_to_id(NULL, ctx->peer_cert, ctx->peer_issuer);
+ if (!id) {
+ wpa_printf(MSG_DEBUG, "OpenSSL: Could not create OCSP certificate identifier");
+ OCSP_BASICRESP_free(basic);
+ OCSP_RESPONSE_free(rsp);
+ ctx->last_err = "Could not create OCSP certificate identifier";
+ return 0;
+ }
+
+ if (!OCSP_resp_find_status(basic, id, &status, &reason, &produced_at,
+ &this_update, &next_update)) {
+ wpa_printf(MSG_INFO, "OpenSSL: Could not find current server certificate from OCSP response%s",
+ (ctx->ocsp == MANDATORY_OCSP) ? "" :
+ " (OCSP not required)");
+ OCSP_CERTID_free(id);
+ OCSP_BASICRESP_free(basic);
+ OCSP_RESPONSE_free(rsp);
+ if (ctx->ocsp == MANDATORY_OCSP)
+
+ ctx->last_err = "Could not find current server certificate from OCSP response";
+ return (ctx->ocsp == MANDATORY_OCSP) ? 0 : 1;
+ }
+ OCSP_CERTID_free(id);
+
+ if (!OCSP_check_validity(this_update, next_update, 5 * 60, -1)) {
+ tls_show_errors(__func__, "OpenSSL: OCSP status times invalid");
+ OCSP_BASICRESP_free(basic);
+ OCSP_RESPONSE_free(rsp);
+ ctx->last_err = "OCSP status times invalid";
+ return 0;
+ }
+
+ OCSP_BASICRESP_free(basic);
+ OCSP_RESPONSE_free(rsp);
+
+ wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status for server certificate: %s",
+ OCSP_cert_status_str(status));
+
+ if (status == V_OCSP_CERTSTATUS_GOOD)
+ return 1;
+ if (status == V_OCSP_CERTSTATUS_REVOKED) {
+ ctx->last_err = "Server certificate has been revoked";
+ return 0;
+ }
+ if (ctx->ocsp == MANDATORY_OCSP) {
+ wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status unknown, but OCSP required");
+ ctx->last_err = "OCSP status unknown";
+ return 0;
+ }
+ wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status unknown, but OCSP was not required, so allow connection to continue");
+ return 1;
+}
+
+
+static SSL_METHOD patch_ssl_method;
+static const SSL_METHOD *real_ssl_method;
+
+static int curl_patch_ssl_new(SSL *s)
+{
+ SSL_CTX *ssl = s->ctx;
+ int ret;
+
+ ssl->method = real_ssl_method;
+ s->method = real_ssl_method;
+
+ ret = s->method->ssl_new(s);
+ SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp);
+
+ return ret;
+}
+
+#endif /* HAVE_OCSP */
+
+
+static CURLcode curl_cb_ssl(CURL *curl, void *sslctx, void *parm)
+{
+ struct http_ctx *ctx = parm;
+ SSL_CTX *ssl = sslctx;
+
+ wpa_printf(MSG_DEBUG, "curl_cb_ssl");
+ SSL_CTX_set_app_data(ssl, ctx);
+ SSL_CTX_set_verify(ssl, SSL_VERIFY_PEER, curl_cb_ssl_verify);
+
+#ifdef HAVE_OCSP
+ if (ctx->ocsp != NO_OCSP) {
+ SSL_CTX_set_tlsext_status_cb(ssl, ocsp_resp_cb);
+ SSL_CTX_set_tlsext_status_arg(ssl, ctx);
+
+ /*
+ * Use a temporary SSL_METHOD to get a callback on SSL_new()
+ * from libcurl since there is no proper callback registration
+ * available for this.
+ */
+ os_memset(&patch_ssl_method, 0, sizeof(patch_ssl_method));
+ patch_ssl_method.ssl_new = curl_patch_ssl_new;
+ real_ssl_method = ssl->method;
+ ssl->method = &patch_ssl_method;
+ }
+#endif /* HAVE_OCSP */
+
+ return CURLE_OK;
+}
+
+#endif /* EAP_TLS_OPENSSL */
+
+
+static CURL * setup_curl_post(struct http_ctx *ctx, const char *address,
+ const char *ca_fname, const char *username,
+ const char *password, const char *client_cert,
+ const char *client_key)
+{
+ CURL *curl;
+#ifdef EAP_TLS_OPENSSL
+ const char *extra = " tls=openssl";
+#else /* EAP_TLS_OPENSSL */
+ const char *extra = "";
+#endif /* EAP_TLS_OPENSSL */
+
+ wpa_printf(MSG_DEBUG, "Start HTTP client: address=%s ca_fname=%s "
+ "username=%s%s", address, ca_fname, username, extra);
+
+ curl = curl_easy_init();
+ if (curl == NULL)
+ return NULL;
+
+ curl_easy_setopt(curl, CURLOPT_URL, address);
+ curl_easy_setopt(curl, CURLOPT_POST, 1L);
+ if (ca_fname) {
+ curl_easy_setopt(curl, CURLOPT_CAINFO, ca_fname);
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L);
+#ifdef EAP_TLS_OPENSSL
+ curl_easy_setopt(curl, CURLOPT_SSL_CTX_FUNCTION, curl_cb_ssl);
+ curl_easy_setopt(curl, CURLOPT_SSL_CTX_DATA, ctx);
+#ifdef OPENSSL_IS_BORINGSSL
+ /* For now, using the CURLOPT_SSL_VERIFYSTATUS option only
+ * with BoringSSL since the OpenSSL specific callback hack to
+ * enable OCSP is not available with BoringSSL. The OCSP
+ * implementation within libcurl is not sufficient for the
+ * Hotspot 2.0 OSU needs, so cannot use this with OpenSSL.
+ */
+ if (ctx->ocsp != NO_OCSP)
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYSTATUS, 1L);
+#endif /* OPENSSL_IS_BORINGSSL */
+#endif /* EAP_TLS_OPENSSL */
+ } else {
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+ }
+ if (client_cert && client_key) {
+ curl_easy_setopt(curl, CURLOPT_SSLCERT, client_cert);
+ curl_easy_setopt(curl, CURLOPT_SSLKEY, client_key);
+ }
+ /* TODO: use curl_easy_getinfo() with CURLINFO_CERTINFO to fetch
+ * information about the server certificate */
+ curl_easy_setopt(curl, CURLOPT_CERTINFO, 1L);
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, curl_cb_debug);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, ctx);
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_cb_write);
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, ctx);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+ if (username) {
+ curl_easy_setopt(curl, CURLOPT_HTTPAUTH, CURLAUTH_ANYSAFE);
+ curl_easy_setopt(curl, CURLOPT_USERNAME, username);
+ curl_easy_setopt(curl, CURLOPT_PASSWORD, password);
+ }
+
+ return curl;
+}
+
+
+static int post_init_client(struct http_ctx *ctx, const char *address,
+ const char *ca_fname, const char *username,
+ const char *password, const char *client_cert,
+ const char *client_key)
+{
+ char *pos;
+ int count;
+
+ clone_str(&ctx->svc_address, address);
+ clone_str(&ctx->svc_ca_fname, ca_fname);
+ clone_str(&ctx->svc_username, username);
+ clone_str(&ctx->svc_password, password);
+ clone_str(&ctx->svc_client_cert, client_cert);
+ clone_str(&ctx->svc_client_key, client_key);
+
+ /*
+ * Workaround for Apache "Hostname 'FOO' provided via SNI and hostname
+ * 'foo' provided via HTTP are different.
+ */
+ for (count = 0, pos = ctx->svc_address; count < 3 && pos && *pos;
+ pos++) {
+ if (*pos == '/')
+ count++;
+ *pos = tolower(*pos);
+ }
+
+ ctx->curl = setup_curl_post(ctx, ctx->svc_address, ca_fname, username,
+ password, client_cert, client_key);
+ if (ctx->curl == NULL)
+ return -1;
+
+ return 0;
+}
+
+
+int soap_init_client(struct http_ctx *ctx, const char *address,
+ const char *ca_fname, const char *username,
+ const char *password, const char *client_cert,
+ const char *client_key)
+{
+ if (post_init_client(ctx, address, ca_fname, username, password,
+ client_cert, client_key) < 0)
+ return -1;
+
+ ctx->curl_hdr = curl_slist_append(ctx->curl_hdr,
+ "Content-Type: application/soap+xml");
+ ctx->curl_hdr = curl_slist_append(ctx->curl_hdr, "SOAPAction: ");
+ ctx->curl_hdr = curl_slist_append(ctx->curl_hdr, "Expect:");
+ curl_easy_setopt(ctx->curl, CURLOPT_HTTPHEADER, ctx->curl_hdr);
+
+ return 0;
+}
+
+
+int soap_reinit_client(struct http_ctx *ctx)
+{
+ char *address = NULL;
+ char *ca_fname = NULL;
+ char *username = NULL;
+ char *password = NULL;
+ char *client_cert = NULL;
+ char *client_key = NULL;
+ int ret;
+
+ clear_curl(ctx);
+
+ clone_str(&address, ctx->svc_address);
+ clone_str(&ca_fname, ctx->svc_ca_fname);
+ clone_str(&username, ctx->svc_username);
+ clone_str(&password, ctx->svc_password);
+ clone_str(&client_cert, ctx->svc_client_cert);
+ clone_str(&client_key, ctx->svc_client_key);
+
+ ret = soap_init_client(ctx, address, ca_fname, username, password,
+ client_cert, client_key);
+ os_free(address);
+ os_free(ca_fname);
+ str_clear_free(username);
+ str_clear_free(password);
+ os_free(client_cert);
+ os_free(client_key);
+ return ret;
+}
+
+
+static void free_curl_buf(struct http_ctx *ctx)
+{
+ os_free(ctx->curl_buf);
+ ctx->curl_buf = NULL;
+ ctx->curl_buf_len = 0;
+}
+
+
+xml_node_t * soap_send_receive(struct http_ctx *ctx, xml_node_t *node)
+{
+ char *str;
+ xml_node_t *envelope, *ret, *resp, *n;
+ CURLcode res;
+ long http = 0;
+
+ ctx->last_err = NULL;
+
+ wpa_printf(MSG_DEBUG, "SOAP: Sending message");
+ envelope = soap_build_envelope(ctx->xml, node);
+ str = xml_node_to_str(ctx->xml, envelope);
+ xml_node_free(ctx->xml, envelope);
+ wpa_printf(MSG_MSGDUMP, "SOAP[%s]", str);
+
+ curl_easy_setopt(ctx->curl, CURLOPT_POSTFIELDS, str);
+ free_curl_buf(ctx);
+
+ res = curl_easy_perform(ctx->curl);
+ if (res != CURLE_OK) {
+ if (!ctx->last_err)
+ ctx->last_err = curl_easy_strerror(res);
+ wpa_printf(MSG_ERROR, "curl_easy_perform() failed: %s",
+ ctx->last_err);
+ os_free(str);
+ free_curl_buf(ctx);
+ return NULL;
+ }
+ os_free(str);
+
+ curl_easy_getinfo(ctx->curl, CURLINFO_RESPONSE_CODE, &http);
+ wpa_printf(MSG_DEBUG, "SOAP: Server response code %ld", http);
+ if (http != 200) {
+ ctx->last_err = "HTTP download failed";
+ wpa_printf(MSG_INFO, "HTTP download failed - code %ld", http);
+ free_curl_buf(ctx);
+ return NULL;
+ }
+
+ if (ctx->curl_buf == NULL)
+ return NULL;
+
+ wpa_printf(MSG_MSGDUMP, "Server response:\n%s", ctx->curl_buf);
+ resp = xml_node_from_buf(ctx->xml, ctx->curl_buf);
+ free_curl_buf(ctx);
+ if (resp == NULL) {
+ wpa_printf(MSG_INFO, "Could not parse SOAP response");
+ ctx->last_err = "Could not parse SOAP response";
+ return NULL;
+ }
+
+ ret = soap_get_body(ctx->xml, resp);
+ if (ret == NULL) {
+ wpa_printf(MSG_INFO, "Could not get SOAP body");
+ ctx->last_err = "Could not get SOAP body";
+ return NULL;
+ }
+
+ wpa_printf(MSG_DEBUG, "SOAP body localname: '%s'",
+ xml_node_get_localname(ctx->xml, ret));
+ n = xml_node_copy(ctx->xml, ret);
+ xml_node_free(ctx->xml, resp);
+
+ return n;
+}
+
+
+struct http_ctx * http_init_ctx(void *upper_ctx, struct xml_node_ctx *xml_ctx)
+{
+ struct http_ctx *ctx;
+
+ ctx = os_zalloc(sizeof(*ctx));
+ if (ctx == NULL)
+ return NULL;
+ ctx->ctx = upper_ctx;
+ ctx->xml = xml_ctx;
+ ctx->ocsp = OPTIONAL_OCSP;
+
+ curl_global_init(CURL_GLOBAL_ALL);
+
+ return ctx;
+}
+
+
+void http_ocsp_set(struct http_ctx *ctx, int val)
+{
+ if (val == 0)
+ ctx->ocsp = NO_OCSP;
+ else if (val == 1)
+ ctx->ocsp = OPTIONAL_OCSP;
+ if (val == 2)
+ ctx->ocsp = MANDATORY_OCSP;
+}
+
+
+void http_deinit_ctx(struct http_ctx *ctx)
+{
+ clear_curl(ctx);
+ os_free(ctx->curl_buf);
+ curl_global_cleanup();
+
+ os_free(ctx->svc_address);
+ os_free(ctx->svc_ca_fname);
+ str_clear_free(ctx->svc_username);
+ str_clear_free(ctx->svc_password);
+ os_free(ctx->svc_client_cert);
+ os_free(ctx->svc_client_key);
+
+ os_free(ctx);
+}
+
+
+int http_download_file(struct http_ctx *ctx, const char *url,
+ const char *fname, const char *ca_fname)
+{
+ CURL *curl;
+ FILE *f;
+ CURLcode res;
+ long http = 0;
+
+ ctx->last_err = NULL;
+
+ wpa_printf(MSG_DEBUG, "curl: Download file from %s to %s (ca=%s)",
+ url, fname, ca_fname);
+ curl = curl_easy_init();
+ if (curl == NULL)
+ return -1;
+
+ f = fopen(fname, "wb");
+ if (f == NULL) {
+ curl_easy_cleanup(curl);
+ return -1;
+ }
+
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ if (ca_fname) {
+ curl_easy_setopt(curl, CURLOPT_CAINFO, ca_fname);
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L);
+ curl_easy_setopt(curl, CURLOPT_CERTINFO, 1L);
+ } else {
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+ }
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, curl_cb_debug);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, ctx);
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite);
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, f);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+
+ res = curl_easy_perform(curl);
+ if (res != CURLE_OK) {
+ if (!ctx->last_err)
+ ctx->last_err = curl_easy_strerror(res);
+ wpa_printf(MSG_ERROR, "curl_easy_perform() failed: %s",
+ ctx->last_err);
+ curl_easy_cleanup(curl);
+ fclose(f);
+ return -1;
+ }
+
+ curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http);
+ wpa_printf(MSG_DEBUG, "curl: Server response code %ld", http);
+ if (http != 200) {
+ ctx->last_err = "HTTP download failed";
+ wpa_printf(MSG_INFO, "HTTP download failed - code %ld", http);
+ curl_easy_cleanup(curl);
+ fclose(f);
+ return -1;
+ }
+
+ curl_easy_cleanup(curl);
+ fclose(f);
+
+ return 0;
+}
+
+
+char * http_post(struct http_ctx *ctx, const char *url, const char *data,
+ const char *content_type, const char *ext_hdr,
+ const char *ca_fname,
+ const char *username, const char *password,
+ const char *client_cert, const char *client_key,
+ size_t *resp_len)
+{
+ long http = 0;
+ CURLcode res;
+ char *ret;
+ CURL *curl;
+ struct curl_slist *curl_hdr = NULL;
+
+ ctx->last_err = NULL;
+ wpa_printf(MSG_DEBUG, "curl: HTTP POST to %s", url);
+ curl = setup_curl_post(ctx, url, ca_fname, username, password,
+ client_cert, client_key);
+ if (curl == NULL)
+ return NULL;
+
+ if (content_type) {
+ char ct[200];
+ snprintf(ct, sizeof(ct), "Content-Type: %s", content_type);
+ curl_hdr = curl_slist_append(curl_hdr, ct);
+ }
+ if (ext_hdr)
+ curl_hdr = curl_slist_append(curl_hdr, ext_hdr);
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, curl_hdr);
+
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
+ free_curl_buf(ctx);
+
+ res = curl_easy_perform(curl);
+ if (res != CURLE_OK) {
+ if (!ctx->last_err)
+ ctx->last_err = curl_easy_strerror(res);
+ wpa_printf(MSG_ERROR, "curl_easy_perform() failed: %s",
+ ctx->last_err);
+ free_curl_buf(ctx);
+ return NULL;
+ }
+
+ curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http);
+ wpa_printf(MSG_DEBUG, "curl: Server response code %ld", http);
+ if (http != 200) {
+ ctx->last_err = "HTTP POST failed";
+ wpa_printf(MSG_INFO, "HTTP POST failed - code %ld", http);
+ free_curl_buf(ctx);
+ return NULL;
+ }
+
+ if (ctx->curl_buf == NULL)
+ return NULL;
+
+ ret = ctx->curl_buf;
+ if (resp_len)
+ *resp_len = ctx->curl_buf_len;
+ ctx->curl_buf = NULL;
+ ctx->curl_buf_len = 0;
+
+ wpa_printf(MSG_MSGDUMP, "Server response:\n%s", ret);
+
+ return ret;
+}
+
+
+void http_set_cert_cb(struct http_ctx *ctx,
+ int (*cb)(void *ctx, struct http_cert *cert),
+ void *cb_ctx)
+{
+ ctx->cert_cb = cb;
+ ctx->cert_cb_ctx = cb_ctx;
+}
+
+
+const char * http_get_err(struct http_ctx *ctx)
+{
+ return ctx->last_err;
+}
projects / mech_eap.git / blobdiff