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/*-
* Copyright (c) 2018 GANDI SAS
* All rights reserved.
*
* Author: Emmanuel Hocdet <manu@gandi.net>
*
* SPDX-License-Identifier: BSD-2-Clause
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "config.h"
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "cache/cache.h"
#include "vend.h"
#include "proxy/cache_proxy.h"
#include "vcc_proxy_if.h"
struct pp2_tlv_ssl {
uint8_t client;
uint32_t verify;
}__attribute__((packed));
#define PP2_CLIENT_SSL 0x01
#define PP2_CLIENT_CERT_CONN 0x02
#define PP2_CLIENT_CERT_SESS 0x04
static VCL_BOOL
tlv_ssl_flag(VRT_CTX, int flag)
{
const struct pp2_tlv_ssl *dst;
int len;
CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
if (VPX_tlv(ctx->req, PP2_TYPE_SSL, (const void **)&dst, &len))
return (0);
return ((dst->client & flag) == flag);
}
VCL_BOOL v_matchproto_(td_proxy_is_ssl)
vmod_is_ssl(VRT_CTX)
{
return (tlv_ssl_flag(ctx, PP2_CLIENT_SSL));
}
VCL_BOOL v_matchproto_(td_proxy_client_has_cert_sess)
vmod_client_has_cert_sess(VRT_CTX)
{
return (tlv_ssl_flag(ctx, PP2_CLIENT_CERT_SESS));
}
VCL_BOOL v_matchproto_(td_proxy_client_has_cert_conn)
vmod_client_has_cert_conn(VRT_CTX)
{
return (tlv_ssl_flag(ctx, PP2_CLIENT_CERT_CONN));
}
/* return come from SSL_get_verify_result */
VCL_INT v_matchproto_(td_proxy_ssl_verify_result)
vmod_ssl_verify_result(VRT_CTX)
{
const struct pp2_tlv_ssl *dst;
int len;
CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
if (VPX_tlv(ctx->req, PP2_TYPE_SSL, (const void **)&dst, &len))
return (0); /* X509_V_OK */
return (vbe32dec(&dst->verify));
}
static VCL_STRING
tlv_string(VRT_CTX, int tlv)
{
const char *ptr;
char *d;
int len;
CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
if (VPX_tlv(ctx->req, tlv, (const void **)&ptr, &len))
return (NULL);
d = WS_Alloc(ctx->ws, len+1);
if (d == NULL) {
VRT_fail(ctx, "proxy.TLV: out of workspace");
return (NULL);
}
AN(ptr);
memcpy(d, ptr, len);
d[len] = '\0';
return (d);
}
VCL_STRING v_matchproto_(td_proxy_alpn)
vmod_alpn(VRT_CTX)
{
return (tlv_string(ctx, PP2_TYPE_ALPN));
}
VCL_STRING v_matchproto_(td_proxy_authority)
vmod_authority(VRT_CTX)
{
return (tlv_string(ctx, PP2_TYPE_AUTHORITY));
}
VCL_STRING v_matchproto_(td_proxy_ssl_version)
vmod_ssl_version(VRT_CTX)
{
return (tlv_string(ctx, PP2_SUBTYPE_SSL_VERSION));
}
VCL_STRING v_matchproto_(td_proxy_ssl_cipher)
vmod_ssl_cipher(VRT_CTX)
{
return (tlv_string(ctx, PP2_SUBTYPE_SSL_CIPHER));
}
VCL_STRING v_matchproto_(td_proxy_cert_sign)
vmod_cert_sign(VRT_CTX)
{
return (tlv_string(ctx, PP2_SUBTYPE_SSL_SIG_ALG));
}
VCL_STRING v_matchproto_(td_proxy_cert_key)
vmod_cert_key(VRT_CTX)
{
return (tlv_string(ctx, PP2_SUBTYPE_SSL_KEY_ALG));
}
VCL_STRING v_matchproto_(td_proxy_client_cert_cn)
vmod_client_cert_cn(VRT_CTX)
{
return (tlv_string(ctx, PP2_SUBTYPE_SSL_CN));
}
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