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Default to only TLSv1.2 from now on.

Browse Source 
Add configuration setting tls_version to specify if you
either want TLSv1.2 or TLSv1.0 or both.

The configuration options ssl_cipher and ssl_dhparam
have changed name to tls_cipher and tls_dhparam. There is
no fallback so you might have to update your configs.
This commit is contained in:
Joris Vink 2015-05-06 10:59:43 +02:00
parent 48495feb43
commit 384bc8fdd6
17 changed files with 106 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
conf/kore.conf.example
View File

@ -80,12 +80,19 @@ validator v_regex regex ^/test/[a-z]*$
validator v_number regex ^[0-9]*$
validator v_session function v_session_validate
# Specify the SSL ciphers that will be used.
#ssl_cipher ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!kRSA:!kDSA
# Specify what TLS version to be used. Default is TLSv1.2
# Allowed values:
# 1.2 for TLSv1.2 (default)
# 1.0 for TLSv1.0
# both for TLSv1.0 and TLSv1.2
#tls_version 1.2
# Specify the TLS ciphers that will be used.
#tls_cipher ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!kRSA:!kDSA
# If you wish to use EDH / ECDH specify a file containing
# a generated DH key (See OpenSSL dhparam).
#ssl_dhparam dh2048.pem
#tls_dhparam dh2048.pem
# Specify the amount of seconds a SPDY connection is kept open.
# You can keep it open indefinately by setting this to 0.

2
examples/cpp/conf/cpp.conf
View File

@ -2,7 +2,7 @@
bind 127.0.0.1 8888
load ./cpp.so
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
domain 127.0.0.1 {
certfile cert/server.crt

2
examples/generic/conf/generic.conf
View File

@ -3,7 +3,7 @@
bind 127.0.0.1 8888
load ./generic.so example_load
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
validator v_example function v_example_func
validator v_regex regex ^/test/[a-z]*$

2
examples/headers/conf/headers.conf
View File

@ -3,7 +3,7 @@
bind 127.0.0.1 8888
load ./headers.so
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
domain 127.0.0.1 {
certfile cert/server.crt

2
examples/integers/conf/integers.conf
View File

@ -6,7 +6,7 @@ load ./integers.so
workers 2
worker_max_connections 5000
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
validator v_id regex ^-?[0-9]*$

2
examples/json_yajl/conf/json_yajl.conf
View File

@ -3,7 +3,7 @@
bind 127.0.0.1 8888
load ./json_yajl.so
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
domain 127.0.0.1 {
certfile cert/server.crt

2
examples/ktunnel/conf/ktunnel.conf
View File

@ -3,7 +3,7 @@
bind 127.0.0.1 8888
load ./ktunnel.so
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
# Regexes here are incorrect.
validator v_host regex ^.*$

2
examples/parameters/conf/parameters.conf
View File

@ -3,7 +3,7 @@
bind 127.0.0.1 8888
load ./parameters.so
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
# The validator used to validate the 'id' parameter
# defined below. We'll use a simple regex to make sure

2
examples/pgsql/conf/pgsql.conf
View File

@ -3,7 +3,7 @@
bind 127.0.0.1 8888
load ./pgsql.so init
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
http_keepalive_time 0

2
examples/tasks/conf/tasks.conf
View File

@ -3,7 +3,7 @@
bind 127.0.0.1 8888
load ./tasks.so
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
validator v_user regex ^[a-z]*$

2
examples/video_stream/conf/video_stream.conf
View File

@ -3,7 +3,7 @@
bind 127.0.0.1 8888
load ./video_stream.so init
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
spdy_idle_time 600
http_keepalive_time 600

2
examples/websocket/conf/websocket.conf
View File

@ -3,7 +3,7 @@
bind 127.0.0.1 8888
load ./websocket.so
ssl_dhparam dh2048.pem
tls_dhparam dh2048.pem
websocket_maxframe 65536
websocket_timeout 20

13
includes/kore.h
View File

@ -57,6 +57,10 @@ extern int daemon(int, int);
#define KORE_VERSION_PATCH 3
#define KORE_VERSION_STATE "rc1"
#define KORE_TLS_VERSION_1_2 0
#define KORE_TLS_VERSION_1_0 1
#define KORE_TLS_VERSION_BOTH 2
#define errno_s strerror(errno)
#define ssl_errno_s ERR_error_string(ERR_get_error(), NULL)
@ -351,8 +355,9 @@ extern char *chroot_path;
extern char *runas_user;
extern char *kore_pidfile;
extern char *config_file;
extern char *kore_ssl_cipher_list;
extern DH *ssl_dhparam;
extern char *kore_tls_cipher_list;
extern int tls_version;
extern DH *tls_dhparam;
extern u_int8_t nlisteners;
extern u_int64_t spdy_idle_time;
@ -416,9 +421,9 @@ u_int64_t kore_timer_run(u_int64_t);
void kore_timer_add(void (*cb)(u_int64_t, u_int64_t),
u_int64_t, int);
int kore_ssl_sni_cb(SSL *, int *, void *);
int kore_tls_sni_cb(SSL *, int *, void *);
int kore_server_bind(const char *, const char *);
int kore_ssl_npn_cb(SSL *, const u_char **, unsigned int *, void *);
int kore_tls_npn_cb(SSL *, const u_char **, unsigned int *, void *);
void kore_connection_init(void);
struct connection *kore_connection_new(void *);

2
src/cli.c
View File

@ -161,7 +161,7 @@ static const char *config_data =
"bind\t\t127.0.0.1 8888\n"
"load\t\t./%s.so\n"
#if !defined(KORE_BENCHMARK)
"ssl_dhparam\tdh2048.pem\n"
"tls_dhparam\tdh2048.pem\n"
#endif
"\n"
"domain 127.0.0.1 {\n"

62
src/config.c
View File

@ -46,9 +46,9 @@ static int configure_rlimit_nofiles(char **);
static int configure_max_connections(char **);
static int configure_accept_treshold(char **);
static int configure_set_affinity(char **);
static int configure_ssl_cipher(char **);
static int configure_ssl_dhparam(char **);
static int configure_ssl_no_compression(char **);
static int configure_tls_version(char **);
static int configure_tls_cipher(char **);
static int configure_tls_dhparam(char **);
static int configure_spdy_idle_time(char **);
static int configure_http_header_max(char **);
static int configure_http_body_max(char **);
@ -84,9 +84,9 @@ static struct {
{ "load", configure_load },
{ "static", configure_handler },
{ "dynamic", configure_handler },
{ "ssl_cipher", configure_ssl_cipher },
{ "ssl_dhparam", configure_ssl_dhparam },
{ "ssl_no_compression", configure_ssl_no_compression },
{ "tls_version", configure_tls_version },
{ "tls_cipher", configure_tls_cipher },
{ "tls_dhparam", configure_tls_dhparam },
{ "spdy_idle_time", configure_spdy_idle_time },
{ "domain", configure_domain },
{ "chroot", configure_chroot },
@ -220,6 +220,11 @@ kore_parse_config_file(char *fpath)
}
}
if (config_names[i].name == NULL) {
printf("unknown configuration option on line %d\n",
lineno);
}
lineno++;
}
@ -258,22 +263,42 @@ configure_load(char **argv)
}
static int
configure_ssl_cipher(char **argv)
configure_tls_version(char **argv)
{
if (argv[1] == NULL)
return (KORE_RESULT_ERROR);
if (strcmp(kore_ssl_cipher_list, KORE_DEFAULT_CIPHER_LIST)) {
kore_debug("duplicate ssl_cipher directive specified");
if (!strcmp(argv[1], "1.2")) {
tls_version = KORE_TLS_VERSION_1_2;
} else if (!strcmp(argv[1], "1.0")) {
tls_version = KORE_TLS_VERSION_1_0;
} else if (!strcmp(argv[1], "both")) {
tls_version = KORE_TLS_VERSION_BOTH;
} else {
printf("unknown value for tls_version: %s\n", argv[1]);
return (KORE_RESULT_ERROR);
}
kore_ssl_cipher_list = kore_strdup(argv[1]);
return (KORE_RESULT_OK);
}
static int
configure_ssl_dhparam(char **argv)
configure_tls_cipher(char **argv)
{
if (argv[1] == NULL)
return (KORE_RESULT_ERROR);
if (strcmp(kore_tls_cipher_list, KORE_DEFAULT_CIPHER_LIST)) {
kore_debug("duplicate tls_cipher directive specified");
return (KORE_RESULT_ERROR);
}
kore_tls_cipher_list = kore_strdup(argv[1]);
return (KORE_RESULT_OK);
}
static int
configure_tls_dhparam(char **argv)
{
#if !defined(KORE_BENCHMARK)
BIO *bio;
@ -281,8 +306,8 @@ configure_ssl_dhparam(char **argv)
if (argv[1] == NULL)
return (KORE_RESULT_ERROR);
if (ssl_dhparam != NULL) {
kore_debug("duplicate ssl_dhparam directive specified");
if (tls_dhparam != NULL) {
kore_debug("duplicate tls_dhparam directive specified");
return (KORE_RESULT_ERROR);
}
@ -291,10 +316,10 @@ configure_ssl_dhparam(char **argv)
return (KORE_RESULT_ERROR);
}
ssl_dhparam = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
tls_dhparam = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
BIO_free(bio);
if (ssl_dhparam == NULL) {
if (tls_dhparam == NULL) {
printf("PEM_read_bio_DHparams(): %s\n", ssl_errno_s);
return (KORE_RESULT_ERROR);
}
@ -302,13 +327,6 @@ configure_ssl_dhparam(char **argv)
return (KORE_RESULT_OK);
}
static int
configure_ssl_no_compression(char **argv)
{
printf("ssl_no_compression is deprecated, and always on by default\n");
return (KORE_RESULT_OK);
}
static int
configure_spdy_idle_time(char **argv)
{

40
src/domain.c
View File

@ -22,7 +22,8 @@
struct kore_domain_h domains;
struct kore_domain *primary_dom = NULL;
DH *ssl_dhparam = NULL;
DH *tls_dhparam = NULL;
int tls_version = KORE_TLS_VERSION_1_2;
static void domain_load_crl(struct kore_domain *);
@ -69,13 +70,28 @@ kore_domain_sslstart(struct kore_domain *dom)
#if !defined(KORE_BENCHMARK)
STACK_OF(X509_NAME) *certs;
X509_STORE *store;
const SSL_METHOD *method;
#if !defined(OPENSSL_NO_EC)
EC_KEY *ecdh;
#endif
kore_debug("kore_domain_sslstart(%s)", dom->domain);
dom->ssl_ctx = SSL_CTX_new(SSLv23_server_method());
switch (tls_version) {
case KORE_TLS_VERSION_1_2:
method = TLSv1_2_server_method();
break;
case KORE_TLS_VERSION_1_0:
method = TLSv1_server_method();
break;
case KORE_TLS_VERSION_BOTH:
method = SSLv23_server_method();
break;
default:
fatal("unknown tls_version: %d", tls_version);
}
dom->ssl_ctx = SSL_CTX_new(method);
if (dom->ssl_ctx == NULL)
fatal("kore_domain_sslstart(): SSL_ctx_new(): %s", ssl_errno_s);
if (!SSL_CTX_use_certificate_chain_file(dom->ssl_ctx, dom->certfile)) {
@ -92,10 +108,10 @@ kore_domain_sslstart(struct kore_domain *dom)
if (!SSL_CTX_check_private_key(dom->ssl_ctx))
fatal("Public/Private key for %s do not match", dom->domain);
if (ssl_dhparam == NULL)
if (tls_dhparam == NULL)
fatal("No DH parameters given");
SSL_CTX_set_tmp_dh(dom->ssl_ctx, ssl_dhparam);
SSL_CTX_set_tmp_dh(dom->ssl_ctx, tls_dhparam);
SSL_CTX_set_options(dom->ssl_ctx, SSL_OP_SINGLE_DH_USE);
#if !defined(OPENSSL_NO_EC)
@ -142,14 +158,18 @@ kore_domain_sslstart(struct kore_domain *dom)
#endif
SSL_CTX_set_mode(dom->ssl_ctx, SSL_MODE_ENABLE_PARTIAL_WRITE);
SSL_CTX_set_options(dom->ssl_ctx, SSL_OP_NO_SSLv2);
SSL_CTX_set_options(dom->ssl_ctx, SSL_OP_NO_SSLv3);
SSL_CTX_set_options(dom->ssl_ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
SSL_CTX_set_cipher_list(dom->ssl_ctx, kore_ssl_cipher_list);
if (tls_version == KORE_TLS_VERSION_BOTH) {
SSL_CTX_set_options(dom->ssl_ctx, SSL_OP_NO_SSLv2);
SSL_CTX_set_options(dom->ssl_ctx, SSL_OP_NO_SSLv3);
SSL_CTX_set_options(dom->ssl_ctx, SSL_OP_NO_TLSv1_1);
}
SSL_CTX_set_tlsext_servername_callback(dom->ssl_ctx, kore_ssl_sni_cb);
SSL_CTX_set_options(dom->ssl_ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
SSL_CTX_set_cipher_list(dom->ssl_ctx, kore_tls_cipher_list);
SSL_CTX_set_tlsext_servername_callback(dom->ssl_ctx, kore_tls_sni_cb);
SSL_CTX_set_next_protos_advertised_cb(dom->ssl_ctx,
kore_ssl_npn_cb, NULL);
kore_tls_npn_cb, NULL);
kore_mem_free(dom->certfile);
kore_mem_free(dom->certkey);

10
src/kore.c
View File

@ -36,7 +36,7 @@ char *runas_user = NULL;
char *chroot_path = NULL;
u_int32_t kore_socket_backlog = 5000;
char *kore_pidfile = KORE_PIDFILE_DEFAULT;
char *kore_ssl_cipher_list = KORE_DEFAULT_CIPHER_LIST;
char *kore_tls_cipher_list = KORE_DEFAULT_CIPHER_LIST;
static void usage(void);
static void version(void);
@ -169,9 +169,9 @@ main(int argc, char *argv[])
#if !defined(KORE_BENCHMARK)
int
kore_ssl_npn_cb(SSL *ssl, const u_char **data, unsigned int *len, void *arg)
kore_tls_npn_cb(SSL *ssl, const u_char **data, unsigned int *len, void *arg)
{
kore_debug("kore_ssl_npn_cb(): sending protocols");
kore_debug("kore_tls_npn_cb(): sending protocols");
*data = (const unsigned char *)KORE_SSL_PROTO_STRING;
*len = strlen(KORE_SSL_PROTO_STRING);
@ -180,13 +180,13 @@ kore_ssl_npn_cb(SSL *ssl, const u_char **data, unsigned int *len, void *arg)
}
int
kore_ssl_sni_cb(SSL *ssl, int *ad, void *arg)
kore_tls_sni_cb(SSL *ssl, int *ad, void *arg)
{
struct kore_domain *dom;
const char *sname;
sname = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
kore_debug("kore_ssl_sni_cb(): received host %s", sname);
kore_debug("kore_tls_sni_cb(): received host %s", sname);
if (sname != NULL && (dom = kore_domain_lookup(sname)) != NULL) {
kore_debug("kore_ssl_sni_cb(): Using %s CTX", sname);