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authorDr. Stephen Henson <steve@openssl.org>2012-12-29 14:16:41 +0000
committerDr. Stephen Henson <steve@openssl.org>2012-12-29 14:16:41 +0000
commit15387e4ce063d8133e35de4f647c539e06917113 (patch)
treea516305392032d18409cc789109f0850f93a60ad /apps
parent49ef33fa3463d6b6001009024c9aed09f814cb7c (diff)
Delegate command line handling for many common options in s_client/s_server to
the SSL_CONF APIs. This is complicated a little because the SSL_CTX structure is not available when the command line is processed: so just check syntax of commands initially and store them, ready to apply later. (backport from HEAD)
Diffstat (limited to 'apps')
-rw-r--r--apps/s_apps.h6
-rw-r--r--apps/s_cb.c83
-rw-r--r--apps/s_client.c106
-rw-r--r--apps/s_server.c129
4 files changed, 141 insertions, 183 deletions
diff --git a/apps/s_apps.h b/apps/s_apps.h
index e4e9bbcdbf..4b06d189a3 100644
--- a/apps/s_apps.h
+++ b/apps/s_apps.h
@@ -191,3 +191,9 @@ void ssl_excert_free(SSL_EXCERT *exc);
int args_excert(char ***pargs, int *pargc,
int *badarg, BIO *err, SSL_EXCERT **pexc);
int load_excert(SSL_EXCERT **pexc, BIO *err);
+#ifdef HEADER_SSL_H
+int args_ssl(char ***pargs, int *pargc, SSL_CONF_CTX *cctx,
+ int *badarg, BIO *err, STACK_OF(OPENSSL_STRING) **pstr);
+int args_ssl_call(SSL_CTX *ctx, BIO *err, SSL_CONF_CTX *cctx,
+ STACK_OF(OPENSSL_STRING) *str, int no_ecdhe);
+#endif
diff --git a/apps/s_cb.c b/apps/s_cb.c
index 2ac7656f06..45d4aab333 100644
--- a/apps/s_cb.c
+++ b/apps/s_cb.c
@@ -1498,3 +1498,86 @@ int args_excert(char ***pargs, int *pargc,
return 1;
}
+int args_ssl(char ***pargs, int *pargc, SSL_CONF_CTX *cctx,
+ int *badarg, BIO *err, STACK_OF(OPENSSL_STRING) **pstr)
+ {
+ char *arg = **pargs, *argn = (*pargs)[1];
+ int rv;
+
+ /* Attempt to run SSL configuration command */
+ rv = SSL_CONF_cmd_argv(cctx, pargc, pargs);
+ /* If parameter not recognised just return */
+ if (rv == 0)
+ return 0;
+ /* see if missing argument error */
+ if (rv == -3)
+ {
+ BIO_printf(err, "%s needs an argument\n", arg);
+ *badarg = 1;
+ goto end;
+ }
+ /* Check for some other error */
+ if (rv < 0)
+ {
+ BIO_printf(err, "Error with command: \"%s %s\"\n",
+ arg, argn ? argn : "");
+ *badarg = 1;
+ goto end;
+ }
+ /* Store command and argument */
+ /* If only one argument processed store value as NULL */
+ if (rv == 1)
+ argn = NULL;
+ if (!*pstr)
+ *pstr = sk_OPENSSL_STRING_new_null();
+ if (!*pstr || !sk_OPENSSL_STRING_push(*pstr, arg) ||
+ !sk_OPENSSL_STRING_push(*pstr, argn))
+ {
+ BIO_puts(err, "Memory allocation failure\n");
+ goto end;
+ }
+
+ end:
+ if (*badarg)
+ ERR_print_errors(err);
+
+ return 1;
+ }
+
+int args_ssl_call(SSL_CTX *ctx, BIO *err, SSL_CONF_CTX *cctx,
+ STACK_OF(OPENSSL_STRING) *str, int no_ecdhe)
+ {
+ int i;
+ SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
+ for (i = 0; i < sk_OPENSSL_STRING_num(str); i+= 2)
+ {
+ const char *param = sk_OPENSSL_STRING_value(str, i);
+ const char *value = sk_OPENSSL_STRING_value(str, i + 1);
+ /* If no_ecdhe or named curve already specified don't need
+ * a default.
+ */
+ if (!no_ecdhe && !strcmp(param, "-named_curve"))
+ no_ecdhe = 1;
+ if (SSL_CONF_cmd(cctx, param, value) <= 0)
+ {
+ BIO_printf(err, "Error with command: \"%s %s\"\n",
+ param, value ? value : "");
+ ERR_print_errors(err);
+ return 0;
+ }
+ }
+ /* This is a special case to keep existing s_server functionality:
+ * if we don't have any curve specified *and* we haven't disabled
+ * ECDHE then use P-256.
+ */
+ if (!no_ecdhe)
+ {
+ if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0)
+ {
+ BIO_puts(err, "Error setting EC curve\n");
+ ERR_print_errors(err);
+ return 0;
+ }
+ }
+ return 1;
+ }
diff --git a/apps/s_client.c b/apps/s_client.c
index 6e5eaa06df..4a98720691 100644
--- a/apps/s_client.c
+++ b/apps/s_client.c
@@ -557,8 +557,6 @@ int MAIN(int, char **);
int MAIN(int argc, char **argv)
{
- unsigned int off=0, clr=0;
- unsigned int cert_flags=0;
int build_chain = 0;
SSL *con=NULL;
#ifndef OPENSSL_NO_KRB5
@@ -578,7 +576,7 @@ int MAIN(int argc, char **argv)
X509 *cert = NULL;
EVP_PKEY *key = NULL;
char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
- int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
+ int reconnect=0,badop=0,verify=SSL_VERIFY_NONE;
int crlf=0;
int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
SSL_CTX *ctx=NULL;
@@ -607,9 +605,6 @@ int MAIN(int argc, char **argv)
#endif
#ifndef OPENSSL_NO_TLSEXT
char *servername = NULL;
- const char *curves=NULL;
- const char *sigalgs=NULL;
- const char *client_sigalgs=NULL;
tlsextctx tlsextcbp =
{NULL,0};
# ifndef OPENSSL_NO_NEXTPROTONEG
@@ -632,6 +627,9 @@ int MAIN(int argc, char **argv)
#endif
SSL_EXCERT *exc = NULL;
+ SSL_CONF_CTX *cctx = NULL;
+ STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
+
meth=SSLv23_client_method();
apps_startup();
@@ -648,6 +646,12 @@ int MAIN(int argc, char **argv)
if (!load_config(bio_err, NULL))
goto end;
+ cctx = SSL_CONF_CTX_new();
+ if (!cctx)
+ goto end;
+ SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
+ SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
+
if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
@@ -724,6 +728,12 @@ int MAIN(int argc, char **argv)
goto bad;
continue;
}
+ else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
+ {
+ if (badarg)
+ goto bad;
+ continue;
+ }
else if (strcmp(*argv,"-prexit") == 0)
prexit=1;
else if (strcmp(*argv,"-crlf") == 0)
@@ -852,8 +862,6 @@ int MAIN(int argc, char **argv)
socket_mtu = atol(*(++argv));
}
#endif
- else if (strcmp(*argv,"-bugs") == 0)
- bugs=1;
else if (strcmp(*argv,"-keyform") == 0)
{
if (--argc < 1) goto bad;
@@ -885,21 +893,7 @@ int MAIN(int argc, char **argv)
if (--argc < 1) goto bad;
CAfile= *(++argv);
}
- else if (strcmp(*argv,"-no_tls1_2") == 0)
- off|=SSL_OP_NO_TLSv1_2;
- else if (strcmp(*argv,"-no_tls1_1") == 0)
- off|=SSL_OP_NO_TLSv1_1;
- else if (strcmp(*argv,"-no_tls1") == 0)
- off|=SSL_OP_NO_TLSv1;
- else if (strcmp(*argv,"-no_ssl3") == 0)
- off|=SSL_OP_NO_SSLv3;
- else if (strcmp(*argv,"-no_ssl2") == 0)
- off|=SSL_OP_NO_SSLv2;
- else if (strcmp(*argv,"-no_comp") == 0)
- { off|=SSL_OP_NO_COMPRESSION; }
#ifndef OPENSSL_NO_TLSEXT
- else if (strcmp(*argv,"-no_ticket") == 0)
- { off|=SSL_OP_NO_TICKET; }
# ifndef OPENSSL_NO_NEXTPROTONEG
else if (strcmp(*argv,"-nextprotoneg") == 0)
{
@@ -908,19 +902,6 @@ int MAIN(int argc, char **argv)
}
# endif
#endif
- else if (strcmp(*argv,"-serverpref") == 0)
- off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
- else if (strcmp(*argv,"-legacy_renegotiation") == 0)
- off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
- else if (strcmp(*argv,"-legacy_server_connect") == 0)
- { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
- else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
- { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
- else if (strcmp(*argv,"-cipher") == 0)
- {
- if (--argc < 1) goto bad;
- cipher= *(++argv);
- }
#ifdef FIONBIO
else if (strcmp(*argv,"-nbio") == 0)
{ c_nbio=1; }
@@ -966,21 +947,6 @@ int MAIN(int argc, char **argv)
servername= *(++argv);
/* meth=TLSv1_client_method(); */
}
- else if (strcmp(*argv,"-curves") == 0)
- {
- if (--argc < 1) goto bad;
- curves= *(++argv);
- }
- else if (strcmp(*argv,"-sigalgs") == 0)
- {
- if (--argc < 1) goto bad;
- sigalgs= *(++argv);
- }
- else if (strcmp(*argv,"-client_sigalgs") == 0)
- {
- if (--argc < 1) goto bad;
- client_sigalgs= *(++argv);
- }
#endif
#ifndef OPENSSL_NO_JPAKE
else if (strcmp(*argv,"-jpake") == 0)
@@ -1005,8 +971,6 @@ int MAIN(int argc, char **argv)
keymatexportlen=atoi(*(++argv));
if (keymatexportlen == 0) goto bad;
}
- else if (strcmp(*argv, "-cert_strict") == 0)
- cert_flags |= SSL_CERT_FLAG_TLS_STRICT;
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
@@ -1156,6 +1120,12 @@ bad:
if (vpm)
SSL_CTX_set1_param(ctx, vpm);
+ if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, 1))
+ {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
#ifndef OPENSSL_NO_ENGINE
if (ssl_client_engine)
{
@@ -1184,14 +1154,6 @@ bad:
if (srtp_profiles != NULL)
SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
#endif
- if (bugs)
- SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
- else
- SSL_CTX_set_options(ctx,off);
-
- if (clr)
- SSL_CTX_clear_options(ctx, clr);
- if (cert_flags) SSL_CTX_set_cert_flags(ctx, cert_flags);
if (exc) ssl_ctx_set_excert(ctx, exc);
/* DTLS: partial reads end up discarding unread UDP bytes :-(
* Setting read ahead solves this problem.
@@ -1229,24 +1191,6 @@ bad:
goto end;
#ifndef OPENSSL_NO_TLSEXT
- if (curves != NULL)
- if(!SSL_CTX_set1_curves_list(ctx, curves)) {
- BIO_printf(bio_err,"error setting curve list\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- if (sigalgs != NULL)
- if(!SSL_CTX_set1_sigalgs_list(ctx,sigalgs)) {
- BIO_printf(bio_err,"error setting signature algorithms list\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- if (client_sigalgs != NULL)
- if(!SSL_CTX_set1_client_sigalgs_list(ctx,client_sigalgs)) {
- BIO_printf(bio_err,"error setting client signature algorithms list\n");
- ERR_print_errors(bio_err);
- goto end;
- }
if (servername != NULL)
{
tlsextcbp.biodebug = bio_err;
@@ -1981,9 +1925,13 @@ end:
EVP_PKEY_free(key);
if (pass)
OPENSSL_free(pass);
- ssl_excert_free(exc);
if (vpm)
X509_VERIFY_PARAM_free(vpm);
+ ssl_excert_free(exc);
+ if (ssl_args)
+ sk_OPENSSL_STRING_free(ssl_args);
+ if (cctx)
+ SSL_CONF_CTX_free(cctx);
if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
diff --git a/apps/s_server.c b/apps/s_server.c
index f53766d5d8..139005ab46 100644
--- a/apps/s_server.c
+++ b/apps/s_server.c
@@ -273,9 +273,6 @@ static int s_server_session_id_context = 1; /* anything will do */
static const char *s_cert_file=TEST_CERT,*s_key_file=NULL, *s_chain_file=NULL;
#ifndef OPENSSL_NO_TLSEXT
static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
-static const char *curves=NULL;
-static const char *sigalgs=NULL;
-static const char *client_sigalgs=NULL;
#endif
static char *s_dcert_file=NULL,*s_dkey_file=NULL, *s_dchain_file=NULL;
#ifdef FIONBIO
@@ -446,7 +443,6 @@ static void s_server_init(void)
s_key_file=NULL;
s_chain_file=NULL;
#ifndef OPENSSL_NO_TLSEXT
- curves=NULL;
s_cert_file2=TEST_CERT2;
s_key_file2=NULL;
ctx2=NULL;
@@ -953,10 +949,8 @@ int MAIN(int argc, char *argv[])
#ifndef OPENSSL_NO_ECDH
char *named_curve = NULL;
#endif
- int badop=0,bugs=0;
+ int badop=0;
int ret=1;
- int off=0;
- unsigned int cert_flags = 0;
int build_chain = 0;
int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
int state=0;
@@ -990,6 +984,8 @@ int MAIN(int argc, char *argv[])
char *srp_verifier_file = NULL;
#endif
SSL_EXCERT *exc = NULL;
+ SSL_CONF_CTX *cctx = NULL;
+ STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
meth=SSLv23_server_method();
local_argc=argc;
@@ -1006,6 +1002,12 @@ int MAIN(int argc, char *argv[])
if (!load_config(bio_err, NULL))
goto end;
+ cctx = SSL_CONF_CTX_new();
+ if (!cctx)
+ goto end;
+ SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
+ SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
+
verify_depth=0;
#ifdef FIONBIO
s_nbio=0;
@@ -1156,17 +1158,14 @@ int MAIN(int argc, char *argv[])
goto bad;
continue;
}
- else if (strcmp(*argv,"-verify_return_error") == 0)
- verify_return_error = 1;
- else if (strcmp(*argv,"-serverpref") == 0)
- { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
- else if (strcmp(*argv,"-legacy_renegotiation") == 0)
- off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
- else if (strcmp(*argv,"-cipher") == 0)
+ else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
{
- if (--argc < 1) goto bad;
- cipher= *(++argv);
+ if (badarg)
+ goto bad;
+ continue;
}
+ else if (strcmp(*argv,"-verify_return_error") == 0)
+ verify_return_error = 1;
else if (strcmp(*argv,"-build_chain") == 0)
build_chain = 1;
else if (strcmp(*argv,"-CAfile") == 0)
@@ -1227,21 +1226,6 @@ int MAIN(int argc, char *argv[])
goto bad;
}
}
- else if (strcmp(*argv,"-curves") == 0)
- {
- if (--argc < 1) goto bad;
- curves= *(++argv);
- }
- else if (strcmp(*argv,"-sigalgs") == 0)
- {
- if (--argc < 1) goto bad;
- sigalgs= *(++argv);
- }
- else if (strcmp(*argv,"-client_sigalgs") == 0)
- {
- if (--argc < 1) goto bad;
- client_sigalgs= *(++argv);
- }
#endif
else if (strcmp(*argv,"-msg") == 0)
{ s_msg=1; }
@@ -1262,8 +1246,6 @@ int MAIN(int argc, char *argv[])
{ s_crlf=1; }
else if (strcmp(*argv,"-quiet") == 0)
{ s_quiet=1; }
- else if (strcmp(*argv,"-bugs") == 0)
- { bugs=1; }
else if (strcmp(*argv,"-no_tmp_rsa") == 0)
{ no_tmp_rsa=1; }
else if (strcmp(*argv,"-no_dhe") == 0)
@@ -1311,22 +1293,6 @@ int MAIN(int argc, char *argv[])
{ www=2; }
else if (strcmp(*argv,"-HTTP") == 0)
{ www=3; }
- else if (strcmp(*argv,"-no_ssl2") == 0)
- { off|=SSL_OP_NO_SSLv2; }
- else if (strcmp(*argv,"-no_ssl3") == 0)
- { off|=SSL_OP_NO_SSLv3; }
- else if (strcmp(*argv,"-no_tls1") == 0)
- { off|=SSL_OP_NO_TLSv1; }
- else if (strcmp(*argv,"-no_tls1_1") == 0)
- { off|=SSL_OP_NO_TLSv1_1; }
- else if (strcmp(*argv,"-no_tls1_2") == 0)
- { off|=SSL_OP_NO_TLSv1_2; }
- else if (strcmp(*argv,"-no_comp") == 0)
- { off|=SSL_OP_NO_COMPRESSION; }
-#ifndef OPENSSL_NO_TLSEXT
- else if (strcmp(*argv,"-no_ticket") == 0)
- { off|=SSL_OP_NO_TICKET; }
-#endif
#ifndef OPENSSL_NO_SSL2
else if (strcmp(*argv,"-ssl2") == 0)
{ meth=SSLv2_server_method(); }
@@ -1425,8 +1391,6 @@ int MAIN(int argc, char *argv[])
keymatexportlen=atoi(*(++argv));
if (keymatexportlen == 0) goto bad;
}
- else if (strcmp(*argv, "-cert_strict") == 0)
- cert_flags |= SSL_CERT_FLAG_TLS_STRICT;
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
@@ -1646,10 +1610,7 @@ bad:
BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
}
SSL_CTX_set_quiet_shutdown(ctx,1);
- if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
- SSL_CTX_set_options(ctx,off);
- if (cert_flags) SSL_CTX_set_cert_flags(ctx, cert_flags);
if (exc) ssl_ctx_set_excert(ctx, exc);
/* DTLS: partial reads end up discarding unread UDP bytes :-(
* Setting read ahead solves this problem.
@@ -1687,6 +1648,9 @@ bad:
if (vpm)
SSL_CTX_set1_param(ctx, vpm);
+ if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe))
+ goto end;
+
if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile))
{
BIO_printf(bio_err, "Error loading store locations\n");
@@ -1726,10 +1690,7 @@ bad:
BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
}
SSL_CTX_set_quiet_shutdown(ctx2,1);
- if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
- SSL_CTX_set_options(ctx2,off);
- if (cert_flags) SSL_CTX_set_cert_flags(ctx2, cert_flags);
if (exc) ssl_ctx_set_excert(ctx2, exc);
/* DTLS: partial reads end up discarding unread UDP bytes :-(
* Setting read ahead solves this problem.
@@ -1750,6 +1711,9 @@ bad:
}
if (vpm)
SSL_CTX_set1_param(ctx2, vpm);
+
+ if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe))
+ goto end;
}
# ifndef OPENSSL_NO_NEXTPROTONEG
@@ -1948,53 +1912,6 @@ bad:
}
#endif
}
-#ifndef OPENSSL_NO_TLSEXT
- if (curves)
- {
- if(!SSL_CTX_set1_curves_list(ctx,curves))
- {
- BIO_printf(bio_err,"error setting curves list\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- if(ctx2 && !SSL_CTX_set1_curves_list(ctx2,curves))
- {
- BIO_printf(bio_err,"error setting curves list\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- }
- if (sigalgs)
- {
- if(!SSL_CTX_set1_sigalgs_list(ctx,sigalgs))
- {
- BIO_printf(bio_err,"error setting signature algorithms\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- if(ctx2 && !SSL_CTX_set1_sigalgs_list(ctx2,sigalgs))
- {
- BIO_printf(bio_err,"error setting signature algorithms\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- }
- if (client_sigalgs)
- {
- if(!SSL_CTX_set1_client_sigalgs_list(ctx,client_sigalgs))
- {
- BIO_printf(bio_err,"error setting client signature algorithms\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- if(ctx2 && !SSL_CTX_set1_client_sigalgs_list(ctx2,client_sigalgs))
- {
- BIO_printf(bio_err,"error setting client signature algorithms\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- }
-#endif
SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
sizeof s_server_session_id_context);
@@ -2090,6 +2007,10 @@ end:
BIO_free(authz_in);
#endif
ssl_excert_free(exc);
+ if (ssl_args)
+ sk_OPENSSL_STRING_free(ssl_args);
+ if (cctx)
+ SSL_CONF_CTX_free(cctx);
if (bio_s_out != NULL)
{
BIO_free(bio_s_out);