X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=apps%2Fs_client.c;h=251da63ed542873e1f8db2f792dd0c13cc816de0;hb=228b4e426b5b8998ca23587d6de5a73690e27a02;hp=47cd9d93d57af5dd8bcf0119f71e2830011c1bbb;hpb=a13c20f60353d3cd3fdd4f23563819eeb4234528;p=openssl.git diff --git a/apps/s_client.c b/apps/s_client.c index 47cd9d93d5..251da63ed5 100644 --- a/apps/s_client.c +++ b/apps/s_client.c @@ -108,8 +108,35 @@ * Hudson (tjh@cryptsoft.com). * */ +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ #include +#include #include #include #include @@ -171,6 +198,69 @@ static BIO *bio_c_out=NULL; static int c_quiet=0; static int c_ign_eof=0; +#ifndef OPENSSL_NO_PSK +/* Default PSK identity and key */ +static char *psk_identity="Client_identity"; +static char *psk_key=NULL; /* by default PSK is not used */ + +static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, + unsigned int max_identity_len, unsigned char *psk, + unsigned int max_psk_len) + { + unsigned int psk_len = 0; + int ret; + BIGNUM *bn=NULL; + + if (c_debug) + BIO_printf(bio_c_out, "psk_client_cb\n"); + if (!hint) + { + /* no ServerKeyExchange message*/ + if (c_debug) + BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n"); + } + else if (c_debug) + BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); + + /* lookup PSK identity and PSK key based on the given identity hint here */ + ret = BIO_snprintf(identity, max_identity_len, psk_identity); + if (ret < 0 || (unsigned int)ret > max_identity_len) + goto out_err; + if (c_debug) + BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret); + ret=BN_hex2bn(&bn, psk_key); + if (!ret) + { + BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key); + if (bn) + BN_free(bn); + return 0; + } + + if ((unsigned int)BN_num_bytes(bn) > max_psk_len) + { + BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n", + max_psk_len, BN_num_bytes(bn)); + BN_free(bn); + return 0; + } + + psk_len=BN_bn2bin(bn, psk); + BN_free(bn); + if (psk_len == 0) + goto out_err; + + if (c_debug) + BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len); + + return psk_len; + out_err: + if (c_debug) + BIO_printf(bio_err, "Error in PSK client callback\n"); + return 0; + } +#endif + static void sc_usage(void) { BIO_printf(bio_err,"usage: s_client args\n"); @@ -204,6 +294,10 @@ static void sc_usage(void) BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n"); BIO_printf(bio_err," -quiet - no s_client output\n"); BIO_printf(bio_err," -ign_eof - ignore input eof (default when -quiet)\n"); +#ifndef OPENSSL_NO_PSK + BIO_printf(bio_err," -psk_identity arg - PSK identity\n"); + BIO_printf(bio_err," -psk arg - PSK in hex (without 0x)\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 - just use TLSv1\n"); @@ -245,7 +339,7 @@ static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg) else BIO_printf(bio_err,"Can't use SSL_get_servername\n"); - return 1; + return SSL_TLSEXT_ERR_OK; } #endif @@ -254,7 +348,7 @@ int MAIN(int, char **); int MAIN(int argc, char **argv) { int off=0; - SSL *con=NULL,*con2=NULL; + SSL *con=NULL; X509_STORE *store = NULL; int s,k,width,state=0; char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL; @@ -404,6 +498,27 @@ int MAIN(int argc, char **argv) nbio_test=1; else if (strcmp(*argv,"-state") == 0) state=1; +#ifndef OPENSSL_NO_PSK + else if (strcmp(*argv,"-psk_identity") == 0) + { + if (--argc < 1) goto bad; + psk_identity=*(++argv); + } + else if (strcmp(*argv,"-psk") == 0) + { + size_t j; + + if (--argc < 1) goto bad; + psk_key=*(++argv); + for (j = 0; j < strlen(psk_key); j++) + { + if (isxdigit((int)psk_key[j])) + continue; + BIO_printf(bio_err,"Not a hex number '%s'\n",*argv); + goto bad; + } + } +#endif #ifndef OPENSSL_NO_SSL2 else if (strcmp(*argv,"-ssl2") == 0) meth=SSLv2_client_method(); @@ -599,6 +714,14 @@ bad: goto end; } +#ifndef OPENSSL_NO_PSK + if (psk_key != NULL) + { + if (c_debug) + BIO_printf(bio_c_out, "PSK key given, setting client callback\n"); + SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); + } +#endif if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL|off); else @@ -1114,9 +1237,12 @@ shut: SHUTDOWN(SSL_get_fd(con)); ret=0; end: - if(prexit) print_stuff(bio_c_out,con,1); - if (con != NULL) SSL_free(con); - if (con2 != NULL) SSL_free(con2); + if (con != NULL) + { + if (prexit != 0) + print_stuff(bio_c_out,con,1); + SSL_free(con); + } if (ctx != NULL) SSL_CTX_free(ctx); if (cert) X509_free(cert);