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Diffstat (limited to 'openssl/apps/s_client.c')
-rw-r--r--openssl/apps/s_client.c388
1 files changed, 374 insertions, 14 deletions
diff --git a/openssl/apps/s_client.c b/openssl/apps/s_client.c
index 53be0f8f8..098cce27d 100644
--- a/openssl/apps/s_client.c
+++ b/openssl/apps/s_client.c
@@ -163,6 +163,9 @@ typedef unsigned int u_int;
#include <openssl/rand.h>
#include <openssl/ocsp.h>
#include <openssl/bn.h>
+#ifndef OPENSSL_NO_SRP
+#include <openssl/srp.h>
+#endif
#include "s_apps.h"
#include "timeouts.h"
@@ -203,6 +206,9 @@ static int c_status_req=0;
static int c_msg=0;
static int c_showcerts=0;
+static char *keymatexportlabel=NULL;
+static int keymatexportlen=20;
+
static void sc_usage(void);
static void print_stuff(BIO *berr,SSL *con,int full);
#ifndef OPENSSL_NO_TLSEXT
@@ -316,12 +322,21 @@ static void sc_usage(void)
BIO_printf(bio_err," -jpake arg - JPAKE secret to use\n");
# endif
#endif
+#ifndef OPENSSL_NO_SRP
+ BIO_printf(bio_err," -srpuser user - SRP authentification for 'user'\n");
+ BIO_printf(bio_err," -srppass arg - password for 'user'\n");
+ BIO_printf(bio_err," -srp_lateuser - SRP username into second ClientHello message\n");
+ BIO_printf(bio_err," -srp_moregroups - Tolerate other than the known g N values.\n");
+ BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
+#endif
BIO_printf(bio_err," -ssl2 - just use SSLv2\n");
BIO_printf(bio_err," -ssl3 - just use SSLv3\n");
+ BIO_printf(bio_err," -tls1_2 - just use TLSv1.2\n");
+ BIO_printf(bio_err," -tls1_1 - just use TLSv1.1\n");
BIO_printf(bio_err," -tls1 - just use TLSv1\n");
BIO_printf(bio_err," -dtls1 - just use DTLSv1\n");
BIO_printf(bio_err," -mtu - set the link layer MTU\n");
- BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
+ BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n");
BIO_printf(bio_err," -serverpref - Use server's cipher preferences (only SSLv2)\n");
BIO_printf(bio_err," -cipher - preferred cipher to use, use the 'openssl ciphers'\n");
@@ -342,8 +357,14 @@ static void sc_usage(void)
BIO_printf(bio_err," -tlsextdebug - hex dump of all TLS extensions received\n");
BIO_printf(bio_err," -status - request certificate status from server\n");
BIO_printf(bio_err," -no_ticket - disable use of RFC4507bis session tickets\n");
+# if !defined(OPENSSL_NO_NEXTPROTONEG)
+ BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
+# endif
#endif
BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
+ BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
+ BIO_printf(bio_err," -keymatexport label - Export keying material using label\n");
+ BIO_printf(bio_err," -keymatexportlen len - Export len bytes of keying material (default 20)\n");
}
#ifndef OPENSSL_NO_TLSEXT
@@ -366,6 +387,156 @@ static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
return SSL_TLSEXT_ERR_OK;
}
+
+#ifndef OPENSSL_NO_SRP
+
+/* This is a context that we pass to all callbacks */
+typedef struct srp_arg_st
+ {
+ char *srppassin;
+ char *srplogin;
+ int msg; /* copy from c_msg */
+ int debug; /* copy from c_debug */
+ int amp; /* allow more groups */
+ int strength /* minimal size for N */ ;
+ } SRP_ARG;
+
+#define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
+
+static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g)
+ {
+ BN_CTX *bn_ctx = BN_CTX_new();
+ BIGNUM *p = BN_new();
+ BIGNUM *r = BN_new();
+ int ret =
+ g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
+ BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
+ p != NULL && BN_rshift1(p, N) &&
+
+ /* p = (N-1)/2 */
+ BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
+ r != NULL &&
+
+ /* verify g^((N-1)/2) == -1 (mod N) */
+ BN_mod_exp(r, g, p, N, bn_ctx) &&
+ BN_add_word(r, 1) &&
+ BN_cmp(r, N) == 0;
+
+ if(r)
+ BN_free(r);
+ if(p)
+ BN_free(p);
+ if(bn_ctx)
+ BN_CTX_free(bn_ctx);
+ return ret;
+ }
+
+/* This callback is used here for two purposes:
+ - extended debugging
+ - making some primality tests for unknown groups
+ The callback is only called for a non default group.
+
+ An application does not need the call back at all if
+ only the stanard groups are used. In real life situations,
+ client and server already share well known groups,
+ thus there is no need to verify them.
+ Furthermore, in case that a server actually proposes a group that
+ is not one of those defined in RFC 5054, it is more appropriate
+ to add the group to a static list and then compare since
+ primality tests are rather cpu consuming.
+*/
+
+static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
+ {
+ SRP_ARG *srp_arg = (SRP_ARG *)arg;
+ BIGNUM *N = NULL, *g = NULL;
+ if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
+ return 0;
+ if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
+ {
+ BIO_printf(bio_err, "SRP parameters:\n");
+ BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
+ BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
+ BIO_printf(bio_err,"\n");
+ }
+
+ if (SRP_check_known_gN_param(g,N))
+ return 1;
+
+ if (srp_arg->amp == 1)
+ {
+ if (srp_arg->debug)
+ BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
+
+/* The srp_moregroups is a real debugging feature.
+ Implementors should rather add the value to the known ones.
+ The minimal size has already been tested.
+*/
+ if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
+ return 1;
+ }
+ BIO_printf(bio_err, "SRP param N and g rejected.\n");
+ return 0;
+ }
+
+#define PWD_STRLEN 1024
+
+static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
+ {
+ SRP_ARG *srp_arg = (SRP_ARG *)arg;
+ char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
+ PW_CB_DATA cb_tmp;
+ int l;
+
+ cb_tmp.password = (char *)srp_arg->srppassin;
+ cb_tmp.prompt_info = "SRP user";
+ if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
+ {
+ BIO_printf (bio_err, "Can't read Password\n");
+ OPENSSL_free(pass);
+ return NULL;
+ }
+ *(pass+l)= '\0';
+
+ return pass;
+ }
+
+#endif
+ char *srtp_profiles = NULL;
+
+# ifndef OPENSSL_NO_NEXTPROTONEG
+/* This the context that we pass to next_proto_cb */
+typedef struct tlsextnextprotoctx_st {
+ unsigned char *data;
+ unsigned short len;
+ int status;
+} tlsextnextprotoctx;
+
+static tlsextnextprotoctx next_proto;
+
+static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
+ {
+ tlsextnextprotoctx *ctx = arg;
+
+ if (!c_quiet)
+ {
+ /* We can assume that |in| is syntactically valid. */
+ unsigned i;
+ BIO_printf(bio_c_out, "Protocols advertised by server: ");
+ for (i = 0; i < inlen; )
+ {
+ if (i)
+ BIO_write(bio_c_out, ", ", 2);
+ BIO_write(bio_c_out, &in[i + 1], in[i]);
+ i += in[i] + 1;
+ }
+ BIO_write(bio_c_out, "\n", 1);
+ }
+
+ ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
+ return SSL_TLSEXT_ERR_OK;
+ }
+# endif
#endif
enum
@@ -384,6 +555,9 @@ int MAIN(int argc, char **argv)
{
unsigned int off=0, clr=0;
SSL *con=NULL;
+#ifndef OPENSSL_NO_KRB5
+ KSSL_CTX *kctx;
+#endif
int s,k,width,state=0;
char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
int cbuf_len,cbuf_off;
@@ -429,6 +603,9 @@ int MAIN(int argc, char **argv)
char *servername = NULL;
tlsextctx tlsextcbp =
{NULL,0};
+# ifndef OPENSSL_NO_NEXTPROTONEG
+ const char *next_proto_neg_in = NULL;
+# endif
#endif
char *sess_in = NULL;
char *sess_out = NULL;
@@ -439,6 +616,11 @@ int MAIN(int argc, char **argv)
#ifndef OPENSSL_NO_JPAKE
char *jpake_secret = NULL;
#endif
+#ifndef OPENSSL_NO_SRP
+ char * srppass = NULL;
+ int srp_lateuser = 0;
+ SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
+#endif
#if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
meth=SSLv23_client_method();
@@ -588,6 +770,37 @@ int MAIN(int argc, char **argv)
}
}
#endif
+#ifndef OPENSSL_NO_SRP
+ else if (strcmp(*argv,"-srpuser") == 0)
+ {
+ if (--argc < 1) goto bad;
+ srp_arg.srplogin= *(++argv);
+ meth=TLSv1_client_method();
+ }
+ else if (strcmp(*argv,"-srppass") == 0)
+ {
+ if (--argc < 1) goto bad;
+ srppass= *(++argv);
+ meth=TLSv1_client_method();
+ }
+ else if (strcmp(*argv,"-srp_strength") == 0)
+ {
+ if (--argc < 1) goto bad;
+ srp_arg.strength=atoi(*(++argv));
+ BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
+ meth=TLSv1_client_method();
+ }
+ else if (strcmp(*argv,"-srp_lateuser") == 0)
+ {
+ srp_lateuser= 1;
+ meth=TLSv1_client_method();
+ }
+ else if (strcmp(*argv,"-srp_moregroups") == 0)
+ {
+ srp_arg.amp=1;
+ meth=TLSv1_client_method();
+ }
+#endif
#ifndef OPENSSL_NO_SSL2
else if (strcmp(*argv,"-ssl2") == 0)
meth=SSLv2_client_method();
@@ -597,6 +810,10 @@ int MAIN(int argc, char **argv)
meth=SSLv3_client_method();
#endif
#ifndef OPENSSL_NO_TLS1
+ else if (strcmp(*argv,"-tls1_2") == 0)
+ meth=TLSv1_2_client_method();
+ else if (strcmp(*argv,"-tls1_1") == 0)
+ meth=TLSv1_1_client_method();
else if (strcmp(*argv,"-tls1") == 0)
meth=TLSv1_client_method();
#endif
@@ -645,6 +862,10 @@ 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)
@@ -656,6 +877,13 @@ int MAIN(int argc, char **argv)
#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)
+ {
+ if (--argc < 1) goto bad;
+ next_proto_neg_in = *(++argv);
+ }
+# endif
#endif
else if (strcmp(*argv,"-serverpref") == 0)
off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
@@ -723,7 +951,23 @@ int MAIN(int argc, char **argv)
jpake_secret = *++argv;
}
#endif
- else
+ else if (strcmp(*argv,"-use_srtp") == 0)
+ {
+ if (--argc < 1) goto bad;
+ srtp_profiles = *(++argv);
+ }
+ else if (strcmp(*argv,"-keymatexport") == 0)
+ {
+ if (--argc < 1) goto bad;
+ keymatexportlabel= *(++argv);
+ }
+ else if (strcmp(*argv,"-keymatexportlen") == 0)
+ {
+ if (--argc < 1) goto bad;
+ keymatexportlen=atoi(*(++argv));
+ if (keymatexportlen == 0) goto bad;
+ }
+ else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
badop=1;
@@ -749,19 +993,33 @@ bad:
goto end;
}
psk_identity = "JPAKE";
+ if (cipher)
+ {
+ BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
+ goto end;
+ }
+ cipher = "PSK";
}
-
- if (cipher)
- {
- BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
- goto end;
- }
- cipher = "PSK";
#endif
OpenSSL_add_ssl_algorithms();
SSL_load_error_strings();
+#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
+ next_proto.status = -1;
+ if (next_proto_neg_in)
+ {
+ next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
+ if (next_proto.data == NULL)
+ {
+ BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
+ goto end;
+ }
+ }
+ else
+ next_proto.data = NULL;
+#endif
+
#ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine_id, 1);
if (ssl_client_engine_id)
@@ -835,6 +1093,14 @@ bad:
}
}
+#ifndef OPENSSL_NO_SRP
+ if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
+ {
+ BIO_printf(bio_err, "Error getting password\n");
+ goto end;
+ }
+#endif
+
ctx=SSL_CTX_new(meth);
if (ctx == NULL)
{
@@ -870,6 +1136,8 @@ bad:
BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
}
+ 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);
@@ -883,6 +1151,11 @@ bad:
*/
if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
+#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
+ if (next_proto.data)
+ SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
+#endif
+
if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
if (cipher != NULL)
if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
@@ -914,6 +1187,24 @@ bad:
SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
}
+#ifndef OPENSSL_NO_SRP
+ if (srp_arg.srplogin)
+ {
+ if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
+ {
+ BIO_printf(bio_err,"Unable to set SRP username\n");
+ goto end;
+ }
+ srp_arg.msg = c_msg;
+ srp_arg.debug = c_debug ;
+ SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
+ SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
+ SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
+ if (c_msg || c_debug || srp_arg.amp == 0)
+ SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
+ }
+
+#endif
#endif
con=SSL_new(ctx);
@@ -952,9 +1243,10 @@ bad:
}
#endif
#ifndef OPENSSL_NO_KRB5
- if (con && (con->kssl_ctx = kssl_ctx_new()) != NULL)
+ if (con && (kctx = kssl_ctx_new()) != NULL)
{
- kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
+ SSL_set0_kssl_ctx(con, kctx);
+ kssl_ctx_setstring(kctx, KSSL_SERVER, host);
}
#endif /* OPENSSL_NO_KRB5 */
/* SSL_set_cipher_list(con,"RC4-MD5"); */
@@ -986,7 +1278,7 @@ re_start:
}
}
#endif
- if (c_Pause & 0x01) con->debug=1;
+ if (c_Pause & 0x01) SSL_set_debug(con, 1);
if ( SSL_version(con) == DTLS1_VERSION)
{
@@ -1035,7 +1327,7 @@ re_start:
if (c_debug)
{
- con->debug=1;
+ SSL_set_debug(con, 1);
BIO_set_callback(sbio,bio_dump_callback);
BIO_set_callback_arg(sbio,(char *)bio_c_out);
}
@@ -1569,6 +1861,14 @@ printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240
SSL_renegotiate(con);
cbuf_len=0;
}
+#ifndef OPENSSL_NO_HEARTBEATS
+ else if ((!c_ign_eof) && (cbuf[0] == 'B'))
+ {
+ BIO_printf(bio_err,"HEARTBEATING\n");
+ SSL_heartbeat(con);
+ cbuf_len=0;
+ }
+#endif
else
{
cbuf_len=i;
@@ -1630,6 +1930,7 @@ static void print_stuff(BIO *bio, SSL *s, int full)
#ifndef OPENSSL_NO_COMP
const COMP_METHOD *comp, *expansion;
#endif
+ unsigned char *exportedkeymat;
if (full)
{
@@ -1720,7 +2021,7 @@ static void print_stuff(BIO *bio, SSL *s, int full)
BIO_number_read(SSL_get_rbio(s)),
BIO_number_written(SSL_get_wbio(s)));
}
- BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
+ BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
c=SSL_get_current_cipher(s);
BIO_printf(bio,"%s, Cipher is %s\n",
SSL_CIPHER_get_version(c),
@@ -1742,7 +2043,66 @@ static void print_stuff(BIO *bio, SSL *s, int full)
BIO_printf(bio,"Expansion: %s\n",
expansion ? SSL_COMP_get_name(expansion) : "NONE");
#endif
+
+#ifdef SSL_DEBUG
+ {
+ /* Print out local port of connection: useful for debugging */
+ int sock;
+ struct sockaddr_in ladd;
+ socklen_t ladd_size = sizeof(ladd);
+ sock = SSL_get_fd(s);
+ getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
+ BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
+ }
+#endif
+
+#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
+ if (next_proto.status != -1) {
+ const unsigned char *proto;
+ unsigned int proto_len;
+ SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
+ BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
+ BIO_write(bio, proto, proto_len);
+ BIO_write(bio, "\n", 1);
+ }
+#endif
+
+ {
+ SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
+
+ if(srtp_profile)
+ BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
+ srtp_profile->name);
+ }
+
SSL_SESSION_print(bio,SSL_get_session(s));
+ if (keymatexportlabel != NULL)
+ {
+ BIO_printf(bio, "Keying material exporter:\n");
+ BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
+ BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
+ exportedkeymat = OPENSSL_malloc(keymatexportlen);
+ if (exportedkeymat != NULL)
+ {
+ if (!SSL_export_keying_material(s, exportedkeymat,
+ keymatexportlen,
+ keymatexportlabel,
+ strlen(keymatexportlabel),
+ NULL, 0, 0))
+ {
+ BIO_printf(bio, " Error\n");
+ }
+ else
+ {
+ BIO_printf(bio, " Keying material: ");
+ for (i=0; i<keymatexportlen; i++)
+ BIO_printf(bio, "%02X",
+ exportedkeymat[i]);
+ BIO_printf(bio, "\n");
+ }
+ OPENSSL_free(exportedkeymat);
+ }
+ }
BIO_printf(bio,"---\n");
if (peer != NULL)
X509_free(peer);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 22:25:20 +0000