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http_curl.c
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/*
* 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_memdup(ASN1_STRING_data(hash->hashValue), n->hash_len);
if (n->hash == NULL) {
os_free(n->alg_oid);
return;
}
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_get_SSL_CTX(ssl);
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");