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-rw-r--r--src/tls/tls_proxy_client_print.c396
1 files changed, 396 insertions, 0 deletions
diff --git a/src/tls/tls_proxy_client_print.c b/src/tls/tls_proxy_client_print.c
new file mode 100644
index 0000000..b45100c
--- /dev/null
+++ b/src/tls/tls_proxy_client_print.c
@@ -0,0 +1,396 @@
+/*++
+/* NAME
+/* tls_proxy_client_print 3
+/* SUMMARY
+/* write TLS_CLIENT_XXX structures to stream
+/* SYNOPSIS
+/* #include <tls_proxy.h>
+/*
+/* int tls_proxy_client_param_print(print_fn, stream, flags, ptr)
+/* ATTR_PRINT_MASTER_FN print_fn;
+/* VSTREAM *stream;
+/* int flags;
+/* void *ptr;
+/*
+/* int tls_proxy_client_init_print(print_fn, stream, flags, ptr)
+/* ATTR_PRINT_MASTER_FN print_fn;
+/* VSTREAM *stream;
+/* int flags;
+/* void *ptr;
+/*
+/* int tls_proxy_client_start_print(print_fn, stream, flags, ptr)
+/* ATTR_PRINT_MASTER_FN print_fn;
+/* VSTREAM *stream;
+/* int flags;
+/* void *ptr;
+/* DESCRIPTION
+/* tls_proxy_client_param_print() writes a TLS_CLIENT_PARAMS structure to
+/* the named stream using the specified attribute print routine.
+/* tls_proxy_client_param_print() is meant to be passed as a call-back to
+/* attr_print(), thusly:
+/*
+/* SEND_ATTR_FUNC(tls_proxy_client_param_print, (void *) param), ...
+/*
+/* tls_proxy_client_init_print() writes a full TLS_CLIENT_INIT_PROPS
+/* structure to the named stream using the specified attribute
+/* print routine. tls_proxy_client_init_print() is meant to
+/* be passed as a call-back to attr_print(), thusly:
+/*
+/* SEND_ATTR_FUNC(tls_proxy_client_init_print, (void *) init_props), ...
+/*
+/* tls_proxy_client_start_print() writes a TLS_CLIENT_START_PROPS
+/* structure, without stream or file descriptor members, to
+/* the named stream using the specified attribute print routine.
+/* tls_proxy_client_start_print() is meant to be passed as a
+/* call-back to attr_print(), thusly:
+/*
+/* SEND_ATTR_FUNC(tls_proxy_client_start_print, (void *) start_props), ...
+/* DIAGNOSTICS
+/* Fatal: out of memory.
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/* Wietse Venema
+/* Google, Inc.
+/* 111 8th Avenue
+/* New York, NY 10011, USA
+/*--*/
+
+#ifdef USE_TLS
+
+/* System library. */
+
+#include <sys_defs.h>
+
+/* Utility library */
+
+#include <argv_attr.h>
+#include <attr.h>
+#include <msg.h>
+
+/* Global library. */
+
+#include <mail_params.h>
+
+/* TLS library. */
+
+#include <tls.h>
+#include <tls_proxy.h>
+
+
+#define STR(x) vstring_str(x)
+#define LEN(x) VSTRING_LEN(x)
+
+/* tls_proxy_client_param_print - send TLS_CLIENT_PARAMS over stream */
+
+int tls_proxy_client_param_print(ATTR_PRINT_MASTER_FN print_fn, VSTREAM *fp,
+ int flags, void *ptr)
+{
+ TLS_CLIENT_PARAMS *params = (TLS_CLIENT_PARAMS *) ptr;
+ int ret;
+
+ if (msg_verbose)
+ msg_info("begin tls_proxy_client_param_print");
+
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_STR(VAR_TLS_HIGH_CLIST, params->tls_high_clist),
+ SEND_ATTR_STR(VAR_TLS_MEDIUM_CLIST,
+ params->tls_medium_clist),
+ SEND_ATTR_STR(VAR_TLS_LOW_CLIST, params->tls_low_clist),
+ SEND_ATTR_STR(VAR_TLS_EXPORT_CLIST,
+ params->tls_export_clist),
+ SEND_ATTR_STR(VAR_TLS_NULL_CLIST, params->tls_null_clist),
+ SEND_ATTR_STR(VAR_TLS_EECDH_AUTO, params->tls_eecdh_auto),
+ SEND_ATTR_STR(VAR_TLS_EECDH_STRONG,
+ params->tls_eecdh_strong),
+ SEND_ATTR_STR(VAR_TLS_EECDH_ULTRA,
+ params->tls_eecdh_ultra),
+ SEND_ATTR_STR(VAR_TLS_BUG_TWEAKS, params->tls_bug_tweaks),
+ SEND_ATTR_STR(VAR_TLS_SSL_OPTIONS,
+ params->tls_ssl_options),
+ SEND_ATTR_STR(VAR_TLS_DANE_DIGESTS,
+ params->tls_dane_digests),
+ SEND_ATTR_STR(VAR_TLS_MGR_SERVICE,
+ params->tls_mgr_service),
+ SEND_ATTR_STR(VAR_TLS_TKT_CIPHER, params->tls_tkt_cipher),
+ SEND_ATTR_INT(VAR_TLS_DAEMON_RAND_BYTES,
+ params->tls_daemon_rand_bytes),
+ SEND_ATTR_INT(VAR_TLS_APPEND_DEF_CA,
+ params->tls_append_def_CA),
+ SEND_ATTR_INT(VAR_TLS_BC_PKEY_FPRINT,
+ params->tls_bc_pkey_fprint),
+ SEND_ATTR_INT(VAR_TLS_PREEMPT_CLIST,
+ params->tls_preempt_clist),
+ SEND_ATTR_INT(VAR_TLS_MULTI_WILDCARD,
+ params->tls_multi_wildcard),
+ ATTR_TYPE_END);
+ /* Do not flush the stream. */
+ if (msg_verbose)
+ msg_info("tls_proxy_client_param_print ret=%d", ret);
+ return (ret);
+}
+
+/* tls_proxy_client_init_print - send TLS_CLIENT_INIT_PROPS over stream */
+
+int tls_proxy_client_init_print(ATTR_PRINT_MASTER_FN print_fn, VSTREAM *fp,
+ int flags, void *ptr)
+{
+ TLS_CLIENT_INIT_PROPS *props = (TLS_CLIENT_INIT_PROPS *) ptr;
+ int ret;
+
+ if (msg_verbose)
+ msg_info("begin tls_proxy_client_init_print");
+
+#define STRING_OR_EMPTY(s) ((s) ? (s) : "")
+
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_STR(TLS_ATTR_LOG_PARAM,
+ STRING_OR_EMPTY(props->log_param)),
+ SEND_ATTR_STR(TLS_ATTR_LOG_LEVEL,
+ STRING_OR_EMPTY(props->log_level)),
+ SEND_ATTR_INT(TLS_ATTR_VERIFYDEPTH, props->verifydepth),
+ SEND_ATTR_STR(TLS_ATTR_CACHE_TYPE,
+ STRING_OR_EMPTY(props->cache_type)),
+ SEND_ATTR_STR(TLS_ATTR_CHAIN_FILES,
+ STRING_OR_EMPTY(props->chain_files)),
+ SEND_ATTR_STR(TLS_ATTR_CERT_FILE,
+ STRING_OR_EMPTY(props->cert_file)),
+ SEND_ATTR_STR(TLS_ATTR_KEY_FILE,
+ STRING_OR_EMPTY(props->key_file)),
+ SEND_ATTR_STR(TLS_ATTR_DCERT_FILE,
+ STRING_OR_EMPTY(props->dcert_file)),
+ SEND_ATTR_STR(TLS_ATTR_DKEY_FILE,
+ STRING_OR_EMPTY(props->dkey_file)),
+ SEND_ATTR_STR(TLS_ATTR_ECCERT_FILE,
+ STRING_OR_EMPTY(props->eccert_file)),
+ SEND_ATTR_STR(TLS_ATTR_ECKEY_FILE,
+ STRING_OR_EMPTY(props->eckey_file)),
+ SEND_ATTR_STR(TLS_ATTR_CAFILE,
+ STRING_OR_EMPTY(props->CAfile)),
+ SEND_ATTR_STR(TLS_ATTR_CAPATH,
+ STRING_OR_EMPTY(props->CApath)),
+ SEND_ATTR_STR(TLS_ATTR_MDALG,
+ STRING_OR_EMPTY(props->mdalg)),
+ ATTR_TYPE_END);
+ /* Do not flush the stream. */
+ if (msg_verbose)
+ msg_info("tls_proxy_client_init_print ret=%d", ret);
+ return (ret);
+}
+
+/* tls_proxy_client_certs_print - send x509 certificates over stream */
+
+static int tls_proxy_client_certs_print(ATTR_PRINT_MASTER_FN print_fn,
+ VSTREAM *fp, int flags, void *ptr)
+{
+ TLS_CERTS *tls_certs = (TLS_CERTS *) ptr;
+ TLS_CERTS *tp;
+ int count;
+ int ret;
+
+ for (tp = tls_certs, count = 0; tp != 0; tp = tp->next, count++)
+ /* void */ ;
+ if (msg_verbose)
+ msg_info("tls_proxy_client_certs_print count=%d", count);
+
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_INT(TLS_ATTR_COUNT, count),
+ ATTR_TYPE_END);
+
+ if (ret == 0 && count > 0) {
+ VSTRING *buf = vstring_alloc(100);
+ int n;
+
+ for (tp = tls_certs, n = 0; ret == 0 && n < count; tp = tp->next, n++) {
+ size_t len = i2d_X509(tp->cert, (unsigned char **) 0);
+ unsigned char *bp;
+
+ VSTRING_RESET(buf);
+ VSTRING_SPACE(buf, len);
+ bp = (unsigned char *) STR(buf);
+ i2d_X509(tp->cert, &bp);
+ if ((char *) bp - STR(buf) != len)
+ msg_panic("i2d_X509 failed to encode certificate");
+ vstring_set_payload_size(buf, len);
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_DATA(TLS_ATTR_CERT, LEN(buf), STR(buf)),
+ ATTR_TYPE_END);
+ }
+ vstring_free(buf);
+ }
+ /* Do not flush the stream. */
+ if (msg_verbose)
+ msg_info("tls_proxy_client_certs_print ret=%d", count);
+ return (ret);
+}
+
+/* tls_proxy_client_pkeys_print - send public keys over stream */
+
+static int tls_proxy_client_pkeys_print(ATTR_PRINT_MASTER_FN print_fn,
+ VSTREAM *fp, int flags, void *ptr)
+{
+ TLS_PKEYS *tls_pkeys = (TLS_PKEYS *) ptr;
+ TLS_PKEYS *tp;
+ int count;
+ int ret;
+
+ for (tp = tls_pkeys, count = 0; tp != 0; tp = tp->next, count++)
+ /* void */ ;
+ if (msg_verbose)
+ msg_info("tls_proxy_client_pkeys_print count=%d", count);
+
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_INT(TLS_ATTR_COUNT, count),
+ ATTR_TYPE_END);
+
+ if (ret == 0 && count > 0) {
+ VSTRING *buf = vstring_alloc(100);
+ int n;
+
+ for (tp = tls_pkeys, n = 0; ret == 0 && n < count; tp = tp->next, n++) {
+ size_t len = i2d_PUBKEY(tp->pkey, (unsigned char **) 0);
+ unsigned char *bp;
+
+ VSTRING_RESET(buf);
+ VSTRING_SPACE(buf, len);
+ bp = (unsigned char *) STR(buf);
+ i2d_PUBKEY(tp->pkey, &bp);
+ if ((char *) bp - STR(buf) != len)
+ msg_panic("i2d_PUBKEY failed to encode public key");
+ vstring_set_payload_size(buf, len);
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_DATA(TLS_ATTR_PKEY, LEN(buf), STR(buf)),
+ ATTR_TYPE_END);
+ }
+ vstring_free(buf);
+ }
+ /* Do not flush the stream. */
+ if (msg_verbose)
+ msg_info("tls_proxy_client_pkeys_print ret=%d", count);
+ return (ret);
+}
+
+/* tls_proxy_client_tlsa_print - send TLS_TLSA over stream */
+
+static int tls_proxy_client_tlsa_print(ATTR_PRINT_MASTER_FN print_fn,
+ VSTREAM *fp, int flags, void *ptr)
+{
+ TLS_TLSA *tls_tlsa = (TLS_TLSA *) ptr;
+ TLS_TLSA *tp;
+ int count;
+ int ret;
+
+ for (tp = tls_tlsa, count = 0; tp != 0; tp = tp->next, count++)
+ /* void */ ;
+ if (msg_verbose)
+ msg_info("tls_proxy_client_tlsa_print count=%d", count);
+
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_INT(TLS_ATTR_COUNT, count),
+ ATTR_TYPE_END);
+
+ if (ret == 0 && count > 0) {
+ int n;
+
+ for (tp = tls_tlsa, n = 0; ret == 0 && n < count; tp = tp->next, n++) {
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_STR(TLS_ATTR_MDALG, tp->mdalg),
+ SEND_ATTR_FUNC(argv_attr_print,
+ (void *) tp->certs),
+ SEND_ATTR_FUNC(argv_attr_print,
+ (void *) tp->pkeys),
+ ATTR_TYPE_END);
+ }
+ }
+ /* Do not flush the stream. */
+ if (msg_verbose)
+ msg_info("tls_proxy_client_tlsa_print ret=%d", count);
+ return (ret);
+}
+
+/* tls_proxy_client_dane_print - send TLS_DANE over stream */
+
+static int tls_proxy_client_dane_print(ATTR_PRINT_MASTER_FN print_fn,
+ VSTREAM *fp, int flags, void *ptr)
+{
+ TLS_DANE *dane = (TLS_DANE *) ptr;
+ int ret;
+
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_INT(TLS_ATTR_DANE, dane != 0),
+ ATTR_TYPE_END);
+ if (msg_verbose)
+ msg_info("tls_proxy_client_dane_print dane=%d", dane != 0);
+
+ if (ret == 0 && dane != 0) {
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_FUNC(tls_proxy_client_tlsa_print,
+ (void *) dane->ta),
+ SEND_ATTR_FUNC(tls_proxy_client_tlsa_print,
+ (void *) dane->ee),
+ SEND_ATTR_FUNC(tls_proxy_client_certs_print,
+ (void *) dane->certs),
+ SEND_ATTR_FUNC(tls_proxy_client_pkeys_print,
+ (void *) dane->pkeys),
+ SEND_ATTR_STR(TLS_ATTR_DOMAIN,
+ STRING_OR_EMPTY(dane->base_domain)),
+ SEND_ATTR_INT(TLS_ATTR_FLAGS, dane->flags),
+ SEND_ATTR_LONG(TLS_ATTR_EXP, dane->expires),
+ ATTR_TYPE_END);
+ }
+ /* Do not flush the stream. */
+ if (msg_verbose)
+ msg_info("tls_proxy_client_dane_print ret=%d", ret);
+ return (ret);
+}
+
+/* tls_proxy_client_start_print - send TLS_CLIENT_START_PROPS over stream */
+
+int tls_proxy_client_start_print(ATTR_PRINT_MASTER_FN print_fn,
+ VSTREAM *fp, int flags, void *ptr)
+{
+ TLS_CLIENT_START_PROPS *props = (TLS_CLIENT_START_PROPS *) ptr;
+ int ret;
+
+ if (msg_verbose)
+ msg_info("begin tls_proxy_client_start_print");
+
+#define STRING_OR_EMPTY(s) ((s) ? (s) : "")
+
+ ret = print_fn(fp, flags | ATTR_FLAG_MORE,
+ SEND_ATTR_INT(TLS_ATTR_TIMEOUT, props->timeout),
+ SEND_ATTR_INT(TLS_ATTR_TLS_LEVEL, props->tls_level),
+ SEND_ATTR_STR(TLS_ATTR_NEXTHOP,
+ STRING_OR_EMPTY(props->nexthop)),
+ SEND_ATTR_STR(TLS_ATTR_HOST,
+ STRING_OR_EMPTY(props->host)),
+ SEND_ATTR_STR(TLS_ATTR_NAMADDR,
+ STRING_OR_EMPTY(props->namaddr)),
+ SEND_ATTR_STR(TLS_ATTR_SNI,
+ STRING_OR_EMPTY(props->sni)),
+ SEND_ATTR_STR(TLS_ATTR_SERVERID,
+ STRING_OR_EMPTY(props->serverid)),
+ SEND_ATTR_STR(TLS_ATTR_HELO,
+ STRING_OR_EMPTY(props->helo)),
+ SEND_ATTR_STR(TLS_ATTR_PROTOCOLS,
+ STRING_OR_EMPTY(props->protocols)),
+ SEND_ATTR_STR(TLS_ATTR_CIPHER_GRADE,
+ STRING_OR_EMPTY(props->cipher_grade)),
+ SEND_ATTR_STR(TLS_ATTR_CIPHER_EXCLUSIONS,
+ STRING_OR_EMPTY(props->cipher_exclusions)),
+ SEND_ATTR_FUNC(argv_attr_print,
+ (void *) props->matchargv),
+ SEND_ATTR_STR(TLS_ATTR_MDALG,
+ STRING_OR_EMPTY(props->mdalg)),
+ SEND_ATTR_FUNC(tls_proxy_client_dane_print,
+ (void *) props->dane),
+ ATTR_TYPE_END);
+ /* Do not flush the stream. */
+ if (msg_verbose)
+ msg_info("tls_proxy_client_start_print ret=%d", ret);
+ return (ret);
+}
+
+#endif
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