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EST: Add CSR generation support with BoringSSL

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This completes EST support with hs20-osu-client when built with
BoringSSL instead of OpenSSL.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2015-12-04 16:25:21 +02:00 committed by Jouni Malinen
parent ed2566ac9b
commit e6f4832737
1 changed files with 28 additions and 16 deletions
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44
hs20/client/est.c
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@ -16,6 +16,9 @@
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#ifdef OPENSSL_IS_BORINGSSL
#include <openssl/buf.h>
#endif /* OPENSSL_IS_BORINGSSL */
#include "common.h"
#include "utils/base64.h"
@ -238,8 +241,6 @@ ASN1_CHOICE(CsrAttrs) = {
IMPLEMENT_ASN1_FUNCTIONS(CsrAttrs);
#ifndef OPENSSL_IS_BORINGSSL
static void add_csrattrs_oid(struct hs20_osu_client *ctx, ASN1_OBJECT *oid,
STACK_OF(X509_EXTENSION) *exts)
{
@ -334,6 +335,23 @@ static void add_csrattrs(struct hs20_osu_client *ctx, CsrAttrs *csrattrs,
if (!csrattrs || ! csrattrs->attrs)
return;
#ifdef OPENSSL_IS_BORINGSSL
num = sk_num(CHECKED_CAST(_STACK *, STACK_OF(AttrOrOID) *,
csrattrs->attrs));
for (i = 0; i < num; i++) {
AttrOrOID *ao = sk_value(
CHECKED_CAST(_STACK *, const STACK_OF(AttrOrOID) *,
csrattrs->attrs), i);
switch (ao->type) {
case 0:
add_csrattrs_oid(ctx, ao->d.oid, exts);
break;
case 1:
add_csrattrs_attr(ctx, ao->d.attribute, exts);
break;
}
}
#else /* OPENSSL_IS_BORINGSSL */
num = SKM_sk_num(AttrOrOID, csrattrs->attrs);
for (i = 0; i < num; i++) {
AttrOrOID *ao = SKM_sk_value(AttrOrOID, csrattrs->attrs, i);
@ -346,20 +364,14 @@ static void add_csrattrs(struct hs20_osu_client *ctx, CsrAttrs *csrattrs,
break;
}
}
}
#endif /* OPENSSL_IS_BORINGSSL */
}
static int generate_csr(struct hs20_osu_client *ctx, char *key_pem,
char *csr_pem, char *est_req, char *old_cert,
CsrAttrs *csrattrs)
{
#ifdef OPENSSL_IS_BORINGSSL
wpa_printf(MSG_ERROR,
"EST: CSR generation not yet supported with BoringSSL");
return -1;
#else /* OPENSSL_IS_BORINGSSL */
EVP_PKEY_CTX *pctx = NULL;
EVP_PKEY *pkey = NULL;
RSA *rsa;
@ -371,6 +383,7 @@ static int generate_csr(struct hs20_osu_client *ctx, char *key_pem,
STACK_OF(X509_EXTENSION) *exts = NULL;
X509_EXTENSION *ex;
BIO *out;
CONF *ctmp = NULL;
wpa_printf(MSG_INFO, "Generate RSA private key");
write_summary(ctx, "Generate RSA private key");
@ -452,20 +465,20 @@ static int generate_csr(struct hs20_osu_client *ctx, char *key_pem,
if (!exts)
goto fail;
ex = X509V3_EXT_conf_nid(NULL, NULL, NID_basic_constraints,
"CA:FALSE");
ex = X509V3_EXT_nconf_nid(ctmp, NULL, NID_basic_constraints,
"CA:FALSE");
if (ex == NULL ||
!sk_X509_EXTENSION_push(exts, ex))
goto fail;
ex = X509V3_EXT_conf_nid(NULL, NULL, NID_key_usage,
"nonRepudiation,digitalSignature,keyEncipherment");
ex = X509V3_EXT_nconf_nid(ctmp, NULL, NID_key_usage,
"nonRepudiation,digitalSignature,keyEncipherment");
if (ex == NULL ||
!sk_X509_EXTENSION_push(exts, ex))
goto fail;
ex = X509V3_EXT_conf_nid(NULL, NULL, NID_ext_key_usage,
"1.3.6.1.4.1.40808.1.1.2");
ex = X509V3_EXT_nconf_nid(ctmp, NULL, NID_ext_key_usage,
"1.3.6.1.4.1.40808.1.1.2");
if (ex == NULL ||
!sk_X509_EXTENSION_push(exts, ex))
goto fail;
@ -566,7 +579,6 @@ fail:
if (pctx)
EVP_PKEY_CTX_free(pctx);
return ret;
#endif /* OPENSSL_IS_BORINGSSL */
}