iostream-openssl.c revision ac645fe16c0619771c0a961db91df16485513c52
5a580c3a38ced62d4bcc95b8ac7c4f2935b5d294Timo Sirainen/* Copyright (c) 2009-2013 Dovecot authors, see the included COPYING file */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen#include "lib.h"
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen#include "istream-private.h"
130fadd21e01ea380170b3bda859f6a27ff8e1a8Timo Sirainen#include "ostream-private.h"
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen#include "iostream-openssl.h"
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen#include <openssl/err.h>
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic void openssl_iostream_free(struct ssl_iostream *ssl_io);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic void openssl_info_callback(const SSL *ssl, int where, int ret)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen struct ssl_iostream *ssl_io;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io = SSL_get_ex_data(ssl, dovecot_ssl_extdata_index);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if ((where & SSL_CB_ALERT) != 0) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_warning("%s: SSL alert: where=0x%x, ret=%d: %s %s",
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->source, where, ret,
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL_alert_type_string_long(ret),
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL_alert_desc_string_long(ret));
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen } else if (ret == 0) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_warning("%s: SSL failed: where=0x%x: %s",
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->source, where, SSL_state_string_long(ssl));
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen } else {
c09d07e85ae22aa620945648a4430ca2a5a676f4Timo Sirainen i_debug("%s: SSL: where=0x%x, ret=%d: %s",
c09d07e85ae22aa620945648a4430ca2a5a676f4Timo Sirainen ssl_io->source, where, ret,
c09d07e85ae22aa620945648a4430ca2a5a676f4Timo Sirainen SSL_state_string_long(ssl));
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainenstatic int
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainenopenssl_iostream_use_certificate(struct ssl_iostream *ssl_io, const char *cert,
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen const char **error_r)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen BIO *in;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen X509 *x;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen int ret = 0;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen in = BIO_new_mem_buf(t_strdup_noconst(cert), strlen(cert));
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (in == NULL) {
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen *error_r = t_strdup_printf("BIO_new_mem_buf() failed: %s",
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen openssl_iostream_error());
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen x = PEM_read_bio_X509(in, NULL, NULL, NULL);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (x != NULL) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ret = SSL_use_certificate(ssl_io->ssl, x);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ERR_peek_error() != 0)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ret = 0;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen X509_free(x);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen BIO_free(in);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ret == 0) {
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen *error_r = t_strdup_printf("Can't load ssl_cert: %s",
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_iostream_get_use_certificate_error(cert));
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return 0;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainenstatic int
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_use_key(struct ssl_iostream *ssl_io,
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen const struct ssl_iostream_settings *set,
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen const char **error_r)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen EVP_PKEY *pkey;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen int ret = 0;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen if (openssl_iostream_load_key(set, &pkey, error_r) < 0)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (SSL_use_PrivateKey(ssl_io->ssl, pkey) != 1) {
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen *error_r = t_strdup_printf("Can't load SSL private key: %s",
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen openssl_iostream_key_load_error());
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ret = -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen EVP_PKEY_free(pkey);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return ret;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainenstatic int
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_verify_client_cert(int preverify_ok, X509_STORE_CTX *ctx)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen int ssl_extidx = SSL_get_ex_data_X509_STORE_CTX_idx();
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL *ssl;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen struct ssl_iostream *ssl_io;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl = X509_STORE_CTX_get_ex_data(ctx, ssl_extidx);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io = SSL_get_ex_data(ssl, dovecot_ssl_extdata_index);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->cert_received = TRUE;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ssl_io->verbose ||
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen (ssl_io->verbose_invalid_cert && !preverify_ok)) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen char buf[1024];
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen X509_NAME *subject;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen subject = X509_get_subject_name(ctx->current_cert);
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen if (subject == NULL ||
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen X509_NAME_oneline(subject, buf, sizeof(buf)) == NULL)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen buf[0] = '\0';
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen else
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen buf[sizeof(buf)-1] = '\0'; /* just in case.. */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (!preverify_ok) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_info("Invalid certificate: %s: %s",
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen X509_verify_cert_error_string(ctx->error), buf);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen } else {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_info("Valid certificate: %s", buf);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (!preverify_ok) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->cert_broken = TRUE;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ssl_io->require_valid_cert)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return 0;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return 1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainenstatic int
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_set(struct ssl_iostream *ssl_io,
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen const struct ssl_iostream_settings *set,
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen const char **error_r)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen const struct ssl_iostream_settings *ctx_set = ssl_io->ctx->set;
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen int verify_flags;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (set->verbose)
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen SSL_set_info_callback(ssl_io->ssl, openssl_info_callback);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (set->cipher_list != NULL &&
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen strcmp(ctx_set->cipher_list, set->cipher_list) != 0) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (!SSL_set_cipher_list(ssl_io->ssl, set->cipher_list)) {
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen *error_r = t_strdup_printf(
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen "Can't set cipher list to '%s': %s",
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen set->cipher_list, openssl_iostream_error());
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
6a4212e6d7c41de83bcac63edec3118e6a7a0f68Timo Sirainen if (set->protocols != NULL) {
6a4212e6d7c41de83bcac63edec3118e6a7a0f68Timo Sirainen SSL_clear_options(ssl_io->ssl, OPENSSL_ALL_PROTOCOL_OPTIONS);
6a4212e6d7c41de83bcac63edec3118e6a7a0f68Timo Sirainen SSL_set_options(ssl_io->ssl,
6a4212e6d7c41de83bcac63edec3118e6a7a0f68Timo Sirainen openssl_get_protocol_options(set->protocols));
6a4212e6d7c41de83bcac63edec3118e6a7a0f68Timo Sirainen }
6a4212e6d7c41de83bcac63edec3118e6a7a0f68Timo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (set->cert != NULL && strcmp(ctx_set->cert, set->cert) != 0) {
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen if (openssl_iostream_use_certificate(ssl_io, set->cert, error_r) < 0)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (set->key != NULL && strcmp(ctx_set->key, set->key) != 0) {
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen if (openssl_iostream_use_key(ssl_io, set, error_r) < 0)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (set->verify_remote_cert) {
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen if (ssl_io->ctx->client_ctx)
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen verify_flags = SSL_VERIFY_NONE;
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen else
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen verify_flags = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen SSL_set_verify(ssl_io->ssl, verify_flags,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_verify_client_cert);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (set->cert_username_field != NULL) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->username_nid = OBJ_txt2nid(set->cert_username_field);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ssl_io->username_nid == NID_undef) {
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen *error_r = t_strdup_printf(
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen "Invalid cert_username_field: %s",
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen set->cert_username_field);
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen } else {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->username_nid = ssl_io->ctx->username_nid;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->verbose = set->verbose;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->verbose_invalid_cert = set->verbose_invalid_cert;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->require_valid_cert = set->require_valid_cert;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return 0;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic int
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_create(struct ssl_iostream_context *ctx, const char *source,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen const struct ssl_iostream_settings *set,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen struct istream **input, struct ostream **output,
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen struct ssl_iostream **iostream_r,
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen const char **error_r)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen struct ssl_iostream *ssl_io;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL *ssl;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen BIO *bio_int, *bio_ext;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl = SSL_new(ctx->ssl_ctx);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ssl == NULL) {
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen *error_r = t_strdup_printf("SSL_new() failed: %s",
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen openssl_iostream_error());
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen /* BIO pairs use default buffer sizes (17 kB in OpenSSL 0.9.8e).
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen Each of the BIOs have one "write buffer". BIO_write() copies data
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen to them, while BIO_read() reads from the other BIO's write buffer
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen into the given buffer. The bio_int is used by OpenSSL and bio_ext
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen is used by this library. */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (BIO_new_bio_pair(&bio_int, 0, &bio_ext, 0) != 1) {
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen *error_r = t_strdup_printf("BIO_new_bio_pair() failed: %s",
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen openssl_iostream_error());
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL_free(ssl);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io = i_new(struct ssl_iostream, 1);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->refcount = 1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->ctx = ctx;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->ssl = ssl;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->bio_ext = bio_ext;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->plain_input = *input;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->plain_output = *output;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->source = i_strdup(source);
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen /* bio_int will be freed by SSL_free() */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL_set_bio(ssl_io->ssl, bio_int, bio_int);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL_set_ex_data(ssl_io->ssl, dovecot_ssl_extdata_index, ssl_io);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
ba1c847d0af4afe4787ed470d0c818e948e184e2Timo Sirainen if (openssl_iostream_set(ssl_io, set, error_r) < 0) {
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_free(ssl_io);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
9ab0786966c0afa8fa09a2faff7c067bc388e694Timo Sirainen o_stream_uncork(ssl_io->plain_output);
9ab0786966c0afa8fa09a2faff7c067bc388e694Timo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen *input = openssl_i_stream_create_ssl(ssl_io);
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen *output = openssl_o_stream_create_ssl(ssl_io);
2244ec1fda50f777b0b5c2c780f058eb31268a28Timo Sirainen i_stream_set_name(*input, t_strconcat("SSL ",
2244ec1fda50f777b0b5c2c780f058eb31268a28Timo Sirainen i_stream_get_name(ssl_io->plain_input), NULL));
2244ec1fda50f777b0b5c2c780f058eb31268a28Timo Sirainen o_stream_set_name(*output, t_strconcat("SSL ",
2244ec1fda50f777b0b5c2c780f058eb31268a28Timo Sirainen o_stream_get_name(ssl_io->plain_output), NULL));
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
130fadd21e01ea380170b3bda859f6a27ff8e1a8Timo Sirainen if (ssl_io->plain_output->real_stream->error_handling_disabled)
130fadd21e01ea380170b3bda859f6a27ff8e1a8Timo Sirainen o_stream_set_no_error_handling(*output, TRUE);
130fadd21e01ea380170b3bda859f6a27ff8e1a8Timo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->ssl_output = *output;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen *iostream_r = ssl_io;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return 0;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic void openssl_iostream_free(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_stream_unref(&ssl_io->plain_input);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen o_stream_unref(&ssl_io->plain_output);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen BIO_free(ssl_io->bio_ext);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL_free(ssl_io->ssl);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_free(ssl_io->last_error);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_free(ssl_io->source);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_free(ssl_io);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic void openssl_iostream_unref(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_assert(ssl_io->refcount > 0);
4b794181a01c04d1dd33c9a8339ddbc826106408Timo Sirainen if (--ssl_io->refcount > 0)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_free(ssl_io);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic void openssl_iostream_destroy(struct ssl_iostream *ssl_io)
38f1423a23f6c9a37c01152595ce3ca8a0a65121Timo Sirainen{
38f1423a23f6c9a37c01152595ce3ca8a0a65121Timo Sirainen (void)SSL_shutdown(ssl_io->ssl);
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen (void)openssl_iostream_more(ssl_io);
38f1423a23f6c9a37c01152595ce3ca8a0a65121Timo Sirainen (void)o_stream_flush(ssl_io->plain_output);
38f1423a23f6c9a37c01152595ce3ca8a0a65121Timo Sirainen
38f1423a23f6c9a37c01152595ce3ca8a0a65121Timo Sirainen ssl_iostream_unref(&ssl_io);
38f1423a23f6c9a37c01152595ce3ca8a0a65121Timo Sirainen}
38f1423a23f6c9a37c01152595ce3ca8a0a65121Timo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic bool openssl_iostream_bio_output(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen size_t bytes, max_bytes;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssize_t sent;
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen unsigned char buffer[IO_BLOCK_SIZE];
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen bool bytes_sent = FALSE;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen int ret;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen o_stream_cork(ssl_io->plain_output);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen while ((bytes = BIO_ctrl_pending(ssl_io->bio_ext)) > 0) {
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen /* bytes contains how many SSL encrypted bytes we should be
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen sending out */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen max_bytes = o_stream_get_buffer_avail_size(ssl_io->plain_output);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (bytes > max_bytes) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (max_bytes == 0) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen /* wait until output buffer clears */
e21a2c0821c559080550ead6a901f613e59af10eTimo Sirainen o_stream_set_flush_pending(ssl_io->plain_output,
e21a2c0821c559080550ead6a901f613e59af10eTimo Sirainen TRUE);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen break;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen bytes = max_bytes;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (bytes > sizeof(buffer))
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen bytes = sizeof(buffer);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen /* BIO_read() is guaranteed to return all the bytes that
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen BIO_ctrl_pending() returned */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ret = BIO_read(ssl_io->bio_ext, buffer, bytes);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_assert(ret == (int)bytes);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen /* we limited number of read bytes to plain_output's
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen available size. this send() is guaranteed to either
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen fully succeed or completely fail due to some error. */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen sent = o_stream_send(ssl_io->plain_output, buffer, bytes);
148a8396be2c1cf7d2aaa55566f7f7dea05388ddTimo Sirainen if (sent < 0) {
689d163c6bc35383f6142c439065575f0bfc6e10Timo Sirainen i_assert(ssl_io->plain_output->closed ||
689d163c6bc35383f6142c439065575f0bfc6e10Timo Sirainen ssl_io->plain_output->stream_errno != 0);
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen ssl_io->plain_stream_errno =
148a8396be2c1cf7d2aaa55566f7f7dea05388ddTimo Sirainen ssl_io->plain_output->stream_errno;
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen ssl_io->closed = TRUE;
148a8396be2c1cf7d2aaa55566f7f7dea05388ddTimo Sirainen break;
148a8396be2c1cf7d2aaa55566f7f7dea05388ddTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_assert(sent == (ssize_t)bytes);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen bytes_sent = TRUE;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen o_stream_uncork(ssl_io->plain_output);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return bytes_sent;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
739125f23e3312045e620014812fe2249a309cc4Timo Sirainenstatic ssize_t
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_read_more(struct ssl_iostream *ssl_io,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen const unsigned char **data_r, size_t *size_r)
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen{
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen *data_r = i_stream_get_data(ssl_io->plain_input, size_r);
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen if (*size_r > 0)
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen return 0;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen if (!ssl_io->input_handler) {
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen /* read plain_input only when we came here from input handler.
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen this makes sure that we don't get stuck with some input
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen unexpectedly buffered. */
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen return 0;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen }
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen if (i_stream_read_data(ssl_io->plain_input, data_r, size_r, 0) < 0)
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen return -1;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen return 0;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen}
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic bool openssl_iostream_bio_input(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen const unsigned char *data;
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen size_t bytes, size;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen int ret;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen bool bytes_read = FALSE;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen while ((bytes = BIO_ctrl_get_write_guarantee(ssl_io->bio_ext)) > 0) {
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen /* bytes contains how many bytes we can write to bio_ext */
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen ssl_io->plain_input->real_stream->try_alloc_limit = bytes;
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen ret = openssl_iostream_read_more(ssl_io, &data, &size);
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen ssl_io->plain_input->real_stream->try_alloc_limit = 0;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen if (ret == -1 && size == 0 && !bytes_read) {
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen ssl_io->plain_stream_errno =
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen ssl_io->plain_input->stream_errno;
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen ssl_io->closed = TRUE;
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen return FALSE;
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (size == 0) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen /* wait for more input */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen break;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen if (size > bytes)
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen size = bytes;
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ret = BIO_write(ssl_io->bio_ext, data, size);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_assert(ret == (ssize_t)size);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_stream_skip(ssl_io->plain_input, size);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen bytes_read = TRUE;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen if (bytes == 0 && !bytes_read && ssl_io->want_read) {
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen /* shouldn't happen */
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen i_error("SSL BIO buffer size too small");
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen ssl_io->plain_stream_errno = EINVAL;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen ssl_io->closed = TRUE;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen return FALSE;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen }
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen if (i_stream_get_data_size(ssl_io->plain_input) > 0) {
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen i_error("SSL: Too much data in buffered plain input buffer");
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen ssl_io->plain_stream_errno = EINVAL;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen ssl_io->closed = TRUE;
739125f23e3312045e620014812fe2249a309cc4Timo Sirainen return FALSE;
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen }
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen if (bytes_read) {
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen if (ssl_io->ostream_flush_waiting_input) {
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen ssl_io->ostream_flush_waiting_input = FALSE;
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen o_stream_set_flush_pending(ssl_io->plain_output, TRUE);
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen }
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen ssl_io->want_read = FALSE;
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return bytes_read;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenbool openssl_iostream_bio_sync(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen bool ret;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen ret = openssl_iostream_bio_output(ssl_io);
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen if (openssl_iostream_bio_input(ssl_io))
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ret = TRUE;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return ret;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenint openssl_iostream_more(struct ssl_iostream *ssl_io)
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen{
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen int ret;
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen if (!ssl_io->handshaked) {
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen if ((ret = ssl_iostream_handshake(ssl_io)) <= 0)
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen return ret;
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen }
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen (void)openssl_iostream_bio_sync(ssl_io);
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen return 1;
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen}
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic void
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_set_error(struct ssl_iostream *ssl_io, const char *str)
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen{
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen i_free(ssl_io->last_error);
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen ssl_io->last_error = i_strdup(str);
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen}
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen
ed41ec8aa0efaa50954fd16cb44c86c8350dadccTimo Sirainenstatic int
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_handle_error_full(struct ssl_iostream *ssl_io, int ret,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen const char *func_name, bool write_error)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen const char *errstr = NULL;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen int err;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen err = SSL_get_error(ssl_io->ssl, ret);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen switch (err) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen case SSL_ERROR_WANT_WRITE:
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen if (!openssl_iostream_bio_sync(ssl_io)) {
ed41ec8aa0efaa50954fd16cb44c86c8350dadccTimo Sirainen if (!write_error)
ed41ec8aa0efaa50954fd16cb44c86c8350dadccTimo Sirainen i_panic("SSL ostream buffer size not unlimited");
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return 0;
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen }
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen if (ssl_io->closed) {
6e9eb28a08f219a64e1e8719941b4c4034ef17d8Timo Sirainen errno = ssl_io->plain_stream_errno != 0 ?
6e9eb28a08f219a64e1e8719941b4c4034ef17d8Timo Sirainen ssl_io->plain_stream_errno : EPIPE;
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen return -1;
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return 1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen case SSL_ERROR_WANT_READ:
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen ssl_io->want_read = TRUE;
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen (void)openssl_iostream_bio_sync(ssl_io);
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen if (ssl_io->closed) {
6e9eb28a08f219a64e1e8719941b4c4034ef17d8Timo Sirainen errno = ssl_io->plain_stream_errno != 0 ?
6e9eb28a08f219a64e1e8719941b4c4034ef17d8Timo Sirainen ssl_io->plain_stream_errno : EPIPE;
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen return -1;
c2c0c1e5d2e97ae114ad83d8cb486b0aab23ac38Timo Sirainen }
6c6b1e9fd9ab19249e73f5269931d01d831e4346Timo Sirainen return ssl_io->want_read ? 0 : 1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen case SSL_ERROR_SYSCALL:
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen /* eat up the error queue */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ERR_peek_error() != 0) {
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen errstr = openssl_iostream_error();
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errno = EINVAL;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen } else if (ret != 0) {
6e9eb28a08f219a64e1e8719941b4c4034ef17d8Timo Sirainen i_assert(errno != 0);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errstr = strerror(errno);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen } else {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen /* EOF. */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errno = ECONNRESET;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errstr = "Disconnected";
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen break;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errstr = t_strdup_printf("%s syscall failed: %s",
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen func_name, errstr);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen break;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen case SSL_ERROR_ZERO_RETURN:
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen /* clean connection closing */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errno = ECONNRESET;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen break;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen case SSL_ERROR_SSL:
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errstr = t_strdup_printf("%s failed: %s",
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen func_name, openssl_iostream_error());
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errno = EINVAL;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen break;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen default:
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errstr = t_strdup_printf("%s failed: unknown failure %d (%s)",
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen func_name, err,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_error());
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errno = EINVAL;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen break;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen if (errstr != NULL)
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_set_error(ssl_io, errstr);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenint openssl_iostream_handle_error(struct ssl_iostream *ssl_io, int ret,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen const char *func_name)
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen{
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen return openssl_iostream_handle_error_full(ssl_io, ret, func_name, FALSE);
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen}
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenint openssl_iostream_handle_write_error(struct ssl_iostream *ssl_io, int ret,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen const char *func_name)
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen{
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen return openssl_iostream_handle_error_full(ssl_io, ret, func_name, TRUE);
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen}
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic int
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_cert_match_name(struct ssl_iostream *ssl_io,
831f3bcdde51fa388462eda1daa555e90651ca2eTimo Sirainen const char *verify_name)
831f3bcdde51fa388462eda1daa555e90651ca2eTimo Sirainen{
831f3bcdde51fa388462eda1daa555e90651ca2eTimo Sirainen if (!ssl_iostream_has_valid_client_cert(ssl_io))
831f3bcdde51fa388462eda1daa555e90651ca2eTimo Sirainen return -1;
831f3bcdde51fa388462eda1daa555e90651ca2eTimo Sirainen
831f3bcdde51fa388462eda1daa555e90651ca2eTimo Sirainen return openssl_cert_match_name(ssl_io->ssl, verify_name);
831f3bcdde51fa388462eda1daa555e90651ca2eTimo Sirainen}
831f3bcdde51fa388462eda1daa555e90651ca2eTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic int openssl_iostream_handshake(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
ac645fe16c0619771c0a961db91df16485513c52Timo Sirainen const char *error = NULL;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen int ret;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_assert(!ssl_io->handshaked);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ssl_io->ctx->client_ctx) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen while ((ret = SSL_connect(ssl_io->ssl)) <= 0) {
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen ret = openssl_iostream_handle_error(ssl_io, ret,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen "SSL_connect()");
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ret <= 0)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return ret;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen } else {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen while ((ret = SSL_accept(ssl_io->ssl)) <= 0) {
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen ret = openssl_iostream_handle_error(ssl_io, ret,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen "SSL_accept()");
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ret <= 0)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return ret;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
21fed972adb354b92771eefad27f8ac8cbd5dd45Timo Sirainen /* handshake finished */
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen (void)openssl_iostream_bio_sync(ssl_io);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen i_free_and_null(ssl_io->last_error);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->handshaked = TRUE;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ssl_io->handshake_callback != NULL) {
ac645fe16c0619771c0a961db91df16485513c52Timo Sirainen if (ssl_io->handshake_callback(&error, ssl_io->handshake_context) < 0) {
ac645fe16c0619771c0a961db91df16485513c52Timo Sirainen i_assert(error != NULL);
ac645fe16c0619771c0a961db91df16485513c52Timo Sirainen openssl_iostream_set_error(ssl_io, error);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen errno = EINVAL;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return -1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (ssl_io->ssl_output != NULL)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen (void)o_stream_flush(ssl_io->ssl_output);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return 1;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic void
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_set_handshake_callback(struct ssl_iostream *ssl_io,
ac645fe16c0619771c0a961db91df16485513c52Timo Sirainen ssl_iostream_handshake_callback_t *callback,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen void *context)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->handshake_callback = callback;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->handshake_context = context;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic bool openssl_iostream_is_handshaked(const struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return ssl_io->handshaked;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic bool
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_has_valid_client_cert(const struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return ssl_io->cert_received && !ssl_io->cert_broken;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic bool
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_has_broken_client_cert(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return ssl_io->cert_received && ssl_io->cert_broken;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic const char *
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_get_peer_name(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen X509 *x509;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen char *name;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen int len;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (!ssl_iostream_has_valid_client_cert(ssl_io))
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return NULL;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen x509 = SSL_get_peer_certificate(ssl_io->ssl);
1c4f8e4c4e5f3a5f05692a2d5c57f96a5b612f3dTimo Sirainen i_assert(x509 != NULL);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen len = X509_NAME_get_text_by_NID(X509_get_subject_name(x509),
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->username_nid, NULL, 0);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (len < 0)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen name = "";
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen else {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen name = t_malloc(len + 1);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (X509_NAME_get_text_by_NID(X509_get_subject_name(x509),
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen ssl_io->username_nid,
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen name, len + 1) < 0)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen name = "";
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen else if (strlen(name) != (size_t)len) {
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen /* NUL characters in name. Someone's trying to fake
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen being another user? Don't allow it. */
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen name = "";
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen }
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen X509_free(x509);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return *name == '\0' ? NULL : name;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic const char *
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_get_security_string(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
68a8f0794a1c2c2267ae4015ef3ccc00604e9175Timo Sirainen const SSL_CIPHER *cipher;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen#ifdef HAVE_SSL_COMPRESSION
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen const COMP_METHOD *comp;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen#endif
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen const char *comp_str;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen int bits, alg_bits;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen if (!ssl_io->handshaked)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return "";
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen cipher = SSL_get_current_cipher(ssl_io->ssl);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen bits = SSL_CIPHER_get_bits(cipher, &alg_bits);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen#ifdef HAVE_SSL_COMPRESSION
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen comp = SSL_get_current_compression(ssl_io->ssl);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen comp_str = comp == NULL ? "" :
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen t_strconcat(" ", SSL_COMP_get_name(comp), NULL);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen#else
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen comp_str = "";
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen#endif
8f2444f788368b08edb4ac037d5f7e5919cdee0aTimo Sirainen return t_strdup_printf("%s with cipher %s (%d/%d bits)%s",
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL_get_version(ssl_io->ssl),
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen SSL_CIPHER_get_name(cipher),
8f2444f788368b08edb4ac037d5f7e5919cdee0aTimo Sirainen bits, alg_bits, comp_str);
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenstatic const char *
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenopenssl_iostream_get_last_error(struct ssl_iostream *ssl_io)
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen{
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen return ssl_io->last_error;
e98de01b5644c88b6053e2921eb5e9a506fe263fTimo Sirainen}
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainenconst struct iostream_ssl_vfuncs ssl_vfuncs = {
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_context_init_client,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_context_init_server,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_context_deinit,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_generate_params,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_context_import_params,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_create,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_unref,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_destroy,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_handshake,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_set_handshake_callback,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_is_handshaked,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_has_valid_client_cert,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_has_broken_client_cert,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_cert_match_name,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_get_peer_name,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_get_security_string,
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen openssl_iostream_get_last_error
3faa1040e5a3f9f35ffad29110216094ab2f5880Timo Sirainen};