TingPing
parent
2c029f763c
commit
84ffde7152
658
src/common/ssl.c
658
src/common/ssl.c
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@ -1,330 +1,330 @@
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/*
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* ssl.c v0.0.3
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* Copyright (C) 2000 -- DaP <profeta@freemail.c3.hu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "inet.h" /* make it first to avoid macro redefinitions */
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#include <openssl/ssl.h> /* SSL_() */
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#include <openssl/err.h> /* ERR_() */
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#ifdef WIN32
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#include <openssl/rand.h> /* RAND_seed() */
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#include "../../config-win32.h" /* HAVE_SNPRINTF */
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#else
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#include "../../config.h"
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#endif
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#include <time.h> /* asctime() */
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#include <string.h> /* strncpy() */
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#include "ssl.h" /* struct cert_info */
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#ifndef HAVE_SNPRINTF
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/*
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* ssl.c v0.0.3
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* Copyright (C) 2000 -- DaP <profeta@freemail.c3.hu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "inet.h" /* make it first to avoid macro redefinitions */
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#include <openssl/ssl.h> /* SSL_() */
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#include <openssl/err.h> /* ERR_() */
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#ifdef WIN32
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#include <openssl/rand.h> /* RAND_seed() */
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#include "../../config-win32.h" /* HAVE_SNPRINTF */
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#else
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#include "../../config.h"
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#endif
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#include <time.h> /* asctime() */
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#include <string.h> /* strncpy() */
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#include "ssl.h" /* struct cert_info */
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#ifndef HAVE_SNPRINTF
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#include <glib.h>
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#include <glib/gprintf.h>
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#define snprintf g_snprintf
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#endif
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/* globals */
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static struct chiper_info chiper_info; /* static buffer for _SSL_get_cipher_info() */
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static char err_buf[256]; /* generic error buffer */
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/* +++++ Internal functions +++++ */
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static void
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__SSL_fill_err_buf (char *funcname)
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{
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int err;
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char buf[256];
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err = ERR_get_error ();
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ERR_error_string (err, buf);
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snprintf (err_buf, sizeof (err_buf), "%s: %s (%d)\n", funcname, buf, err);
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}
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static void
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__SSL_critical_error (char *funcname)
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{
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__SSL_fill_err_buf (funcname);
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fprintf (stderr, "%s\n", err_buf);
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exit (1);
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}
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/* +++++ SSL functions +++++ */
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SSL_CTX *
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_SSL_context_init (void (*info_cb_func), int server)
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{
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SSL_CTX *ctx;
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#ifdef WIN32
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int i, r;
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#endif
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SSLeay_add_ssl_algorithms ();
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SSL_load_error_strings ();
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ctx = SSL_CTX_new (server ? SSLv3_server_method() : SSLv3_client_method ());
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SSL_CTX_set_session_cache_mode (ctx, SSL_SESS_CACHE_BOTH);
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SSL_CTX_set_timeout (ctx, 300);
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/* used in SSL_connect(), SSL_accept() */
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SSL_CTX_set_info_callback (ctx, info_cb_func);
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#ifdef WIN32
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/* under win32, OpenSSL needs to be seeded with some randomness */
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for (i = 0; i < 128; i++)
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{
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r = rand ();
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RAND_seed ((unsigned char *)&r, sizeof (r));
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}
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#endif
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return(ctx);
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}
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static void
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ASN1_TIME_snprintf (char *buf, int buf_len, ASN1_TIME * tm)
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{
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char *expires = NULL;
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BIO *inMem = BIO_new (BIO_s_mem ());
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ASN1_TIME_print (inMem, tm);
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BIO_get_mem_data (inMem, &expires);
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buf[0] = 0;
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if (expires != NULL)
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{
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memset (buf, 0, buf_len);
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strncpy (buf, expires, 24);
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}
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BIO_free (inMem);
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}
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static void
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broke_oneline (char *oneline, char *parray[])
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{
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char *pt, *ppt;
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int i;
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i = 0;
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ppt = pt = oneline + 1;
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while ((pt = strchr (pt, '/')))
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{
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*pt = 0;
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parray[i++] = ppt;
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ppt = ++pt;
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}
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parray[i++] = ppt;
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parray[i] = NULL;
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}
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/*
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FIXME: Master-Key, Extensions, CA bits
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(openssl x509 -text -in servcert.pem)
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*/
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int
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_SSL_get_cert_info (struct cert_info *cert_info, SSL * ssl)
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{
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X509 *peer_cert;
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EVP_PKEY *peer_pkey;
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/* EVP_PKEY *ca_pkey; */
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/* EVP_PKEY *tmp_pkey; */
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char notBefore[64];
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char notAfter[64];
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int alg;
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int sign_alg;
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if (!(peer_cert = SSL_get_peer_certificate (ssl)))
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return (1); /* FATAL? */
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X509_NAME_oneline (X509_get_subject_name (peer_cert), cert_info->subject,
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sizeof (cert_info->subject));
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X509_NAME_oneline (X509_get_issuer_name (peer_cert), cert_info->issuer,
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sizeof (cert_info->issuer));
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broke_oneline (cert_info->subject, cert_info->subject_word);
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broke_oneline (cert_info->issuer, cert_info->issuer_word);
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alg = OBJ_obj2nid (peer_cert->cert_info->key->algor->algorithm);
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sign_alg = OBJ_obj2nid (peer_cert->sig_alg->algorithm);
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ASN1_TIME_snprintf (notBefore, sizeof (notBefore),
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X509_get_notBefore (peer_cert));
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ASN1_TIME_snprintf (notAfter, sizeof (notAfter),
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X509_get_notAfter (peer_cert));
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peer_pkey = X509_get_pubkey (peer_cert);
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strncpy (cert_info->algorithm,
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(alg == NID_undef) ? "Unknown" : OBJ_nid2ln (alg),
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sizeof (cert_info->algorithm));
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cert_info->algorithm_bits = EVP_PKEY_bits (peer_pkey);
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strncpy (cert_info->sign_algorithm,
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(sign_alg == NID_undef) ? "Unknown" : OBJ_nid2ln (sign_alg),
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sizeof (cert_info->sign_algorithm));
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/* EVP_PKEY_bits(ca_pkey)); */
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cert_info->sign_algorithm_bits = 0;
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strncpy (cert_info->notbefore, notBefore, sizeof (cert_info->notbefore));
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strncpy (cert_info->notafter, notAfter, sizeof (cert_info->notafter));
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EVP_PKEY_free (peer_pkey);
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/* SSL_SESSION_print_fp(stdout, SSL_get_session(ssl)); */
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/*
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if (ssl->session->sess_cert->peer_rsa_tmp) {
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tmp_pkey = EVP_PKEY_new();
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EVP_PKEY_assign_RSA(tmp_pkey, ssl->session->sess_cert->peer_rsa_tmp);
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cert_info->rsa_tmp_bits = EVP_PKEY_bits (tmp_pkey);
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EVP_PKEY_free(tmp_pkey);
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} else
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fprintf(stderr, "REMOTE SIDE DOESN'T PROVIDES ->peer_rsa_tmp\n");
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*/
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cert_info->rsa_tmp_bits = 0;
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X509_free (peer_cert);
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return (0);
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}
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struct chiper_info *
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_SSL_get_cipher_info (SSL * ssl)
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{
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const SSL_CIPHER *c;
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c = SSL_get_current_cipher (ssl);
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strncpy (chiper_info.version, SSL_CIPHER_get_version (c),
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sizeof (chiper_info.version));
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strncpy (chiper_info.chiper, SSL_CIPHER_get_name (c),
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sizeof (chiper_info.chiper));
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SSL_CIPHER_get_bits (c, &chiper_info.chiper_bits);
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return (&chiper_info);
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}
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int
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_SSL_send (SSL * ssl, char *buf, int len)
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{
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int num;
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num = SSL_write (ssl, buf, len);
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switch (SSL_get_error (ssl, num))
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{
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case SSL_ERROR_SSL: /* setup errno! */
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/* ??? */
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__SSL_fill_err_buf ("SSL_write");
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fprintf (stderr, "%s\n", err_buf);
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break;
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case SSL_ERROR_SYSCALL:
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/* ??? */
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perror ("SSL_write/write");
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break;
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case SSL_ERROR_ZERO_RETURN:
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/* fprintf(stderr, "SSL closed on write\n"); */
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break;
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}
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return (num);
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}
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int
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_SSL_recv (SSL * ssl, char *buf, int len)
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{
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int num;
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num = SSL_read (ssl, buf, len);
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switch (SSL_get_error (ssl, num))
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{
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case SSL_ERROR_SSL:
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/* ??? */
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__SSL_fill_err_buf ("SSL_read");
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fprintf (stderr, "%s\n", err_buf);
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break;
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case SSL_ERROR_SYSCALL:
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/* ??? */
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if (!would_block ())
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perror ("SSL_read/read");
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break;
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case SSL_ERROR_ZERO_RETURN:
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/* fprintf(stdeerr, "SSL closed on read\n"); */
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break;
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}
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return (num);
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}
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SSL *
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_SSL_socket (SSL_CTX *ctx, int sd)
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{
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SSL *ssl;
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if (!(ssl = SSL_new (ctx)))
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/* FATAL */
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__SSL_critical_error ("SSL_new");
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SSL_set_fd (ssl, sd);
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if (ctx->method == SSLv3_client_method())
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SSL_set_connect_state (ssl);
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else
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SSL_set_accept_state(ssl);
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return (ssl);
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}
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char *
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_SSL_set_verify (SSL_CTX *ctx, void *verify_callback, char *cacert)
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{
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if (!SSL_CTX_set_default_verify_paths (ctx))
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{
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__SSL_fill_err_buf ("SSL_CTX_set_default_verify_paths");
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return (err_buf);
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}
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/*
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if (cacert)
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{
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if (!SSL_CTX_load_verify_locations (ctx, cacert, NULL))
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{
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__SSL_fill_err_buf ("SSL_CTX_load_verify_locations");
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return (err_buf);
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}
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}
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*/
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SSL_CTX_set_verify (ctx, SSL_VERIFY_PEER, verify_callback);
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return (NULL);
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}
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void
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_SSL_close (SSL * ssl)
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{
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SSL_set_shutdown (ssl, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
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SSL_free (ssl);
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ERR_remove_state (0); /* free state buffer */
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}
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#include <glib/gprintf.h>
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#define snprintf g_snprintf
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#endif
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/* globals */
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static struct chiper_info chiper_info; /* static buffer for _SSL_get_cipher_info() */
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static char err_buf[256]; /* generic error buffer */
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/* +++++ Internal functions +++++ */
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static void
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__SSL_fill_err_buf (char *funcname)
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{
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int err;
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char buf[256];
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err = ERR_get_error ();
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ERR_error_string (err, buf);
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snprintf (err_buf, sizeof (err_buf), "%s: %s (%d)\n", funcname, buf, err);
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}
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static void
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__SSL_critical_error (char *funcname)
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{
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__SSL_fill_err_buf (funcname);
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fprintf (stderr, "%s\n", err_buf);
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exit (1);
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}
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/* +++++ SSL functions +++++ */
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SSL_CTX *
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_SSL_context_init (void (*info_cb_func), int server)
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{
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SSL_CTX *ctx;
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#ifdef WIN32
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int i, r;
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#endif
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SSLeay_add_ssl_algorithms ();
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SSL_load_error_strings ();
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ctx = SSL_CTX_new (server ? SSLv23_server_method() : SSLv23_client_method ());
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SSL_CTX_set_session_cache_mode (ctx, SSL_SESS_CACHE_BOTH);
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SSL_CTX_set_timeout (ctx, 300);
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/* used in SSL_connect(), SSL_accept() */
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SSL_CTX_set_info_callback (ctx, info_cb_func);
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#ifdef WIN32
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/* under win32, OpenSSL needs to be seeded with some randomness */
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for (i = 0; i < 128; i++)
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{
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r = rand ();
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RAND_seed ((unsigned char *)&r, sizeof (r));
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}
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#endif
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return(ctx);
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}
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static void
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ASN1_TIME_snprintf (char *buf, int buf_len, ASN1_TIME * tm)
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{
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char *expires = NULL;
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BIO *inMem = BIO_new (BIO_s_mem ());
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ASN1_TIME_print (inMem, tm);
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BIO_get_mem_data (inMem, &expires);
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buf[0] = 0;
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if (expires != NULL)
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{
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memset (buf, 0, buf_len);
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strncpy (buf, expires, 24);
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}
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BIO_free (inMem);
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}
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static void
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broke_oneline (char *oneline, char *parray[])
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{
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char *pt, *ppt;
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int i;
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i = 0;
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ppt = pt = oneline + 1;
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while ((pt = strchr (pt, '/')))
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{
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*pt = 0;
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parray[i++] = ppt;
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ppt = ++pt;
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}
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parray[i++] = ppt;
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parray[i] = NULL;
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}
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|
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/*
|
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FIXME: Master-Key, Extensions, CA bits
|
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(openssl x509 -text -in servcert.pem)
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*/
|
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int
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_SSL_get_cert_info (struct cert_info *cert_info, SSL * ssl)
|
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{
|
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X509 *peer_cert;
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EVP_PKEY *peer_pkey;
|
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/* EVP_PKEY *ca_pkey; */
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/* EVP_PKEY *tmp_pkey; */
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char notBefore[64];
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char notAfter[64];
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int alg;
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int sign_alg;
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if (!(peer_cert = SSL_get_peer_certificate (ssl)))
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return (1); /* FATAL? */
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X509_NAME_oneline (X509_get_subject_name (peer_cert), cert_info->subject,
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sizeof (cert_info->subject));
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X509_NAME_oneline (X509_get_issuer_name (peer_cert), cert_info->issuer,
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sizeof (cert_info->issuer));
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broke_oneline (cert_info->subject, cert_info->subject_word);
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broke_oneline (cert_info->issuer, cert_info->issuer_word);
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alg = OBJ_obj2nid (peer_cert->cert_info->key->algor->algorithm);
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sign_alg = OBJ_obj2nid (peer_cert->sig_alg->algorithm);
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ASN1_TIME_snprintf (notBefore, sizeof (notBefore),
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X509_get_notBefore (peer_cert));
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ASN1_TIME_snprintf (notAfter, sizeof (notAfter),
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X509_get_notAfter (peer_cert));
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|
||||
peer_pkey = X509_get_pubkey (peer_cert);
|
||||
|
||||
strncpy (cert_info->algorithm,
|
||||
(alg == NID_undef) ? "Unknown" : OBJ_nid2ln (alg),
|
||||
sizeof (cert_info->algorithm));
|
||||
cert_info->algorithm_bits = EVP_PKEY_bits (peer_pkey);
|
||||
strncpy (cert_info->sign_algorithm,
|
||||
(sign_alg == NID_undef) ? "Unknown" : OBJ_nid2ln (sign_alg),
|
||||
sizeof (cert_info->sign_algorithm));
|
||||
/* EVP_PKEY_bits(ca_pkey)); */
|
||||
cert_info->sign_algorithm_bits = 0;
|
||||
strncpy (cert_info->notbefore, notBefore, sizeof (cert_info->notbefore));
|
||||
strncpy (cert_info->notafter, notAfter, sizeof (cert_info->notafter));
|
||||
|
||||
EVP_PKEY_free (peer_pkey);
|
||||
|
||||
/* SSL_SESSION_print_fp(stdout, SSL_get_session(ssl)); */
|
||||
/*
|
||||
if (ssl->session->sess_cert->peer_rsa_tmp) {
|
||||
tmp_pkey = EVP_PKEY_new();
|
||||
EVP_PKEY_assign_RSA(tmp_pkey, ssl->session->sess_cert->peer_rsa_tmp);
|
||||
cert_info->rsa_tmp_bits = EVP_PKEY_bits (tmp_pkey);
|
||||
EVP_PKEY_free(tmp_pkey);
|
||||
} else
|
||||
fprintf(stderr, "REMOTE SIDE DOESN'T PROVIDES ->peer_rsa_tmp\n");
|
||||
*/
|
||||
cert_info->rsa_tmp_bits = 0;
|
||||
|
||||
X509_free (peer_cert);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
struct chiper_info *
|
||||
_SSL_get_cipher_info (SSL * ssl)
|
||||
{
|
||||
const SSL_CIPHER *c;
|
||||
|
||||
|
||||
c = SSL_get_current_cipher (ssl);
|
||||
strncpy (chiper_info.version, SSL_CIPHER_get_version (c),
|
||||
sizeof (chiper_info.version));
|
||||
strncpy (chiper_info.chiper, SSL_CIPHER_get_name (c),
|
||||
sizeof (chiper_info.chiper));
|
||||
SSL_CIPHER_get_bits (c, &chiper_info.chiper_bits);
|
||||
|
||||
return (&chiper_info);
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
_SSL_send (SSL * ssl, char *buf, int len)
|
||||
{
|
||||
int num;
|
||||
|
||||
|
||||
num = SSL_write (ssl, buf, len);
|
||||
|
||||
switch (SSL_get_error (ssl, num))
|
||||
{
|
||||
case SSL_ERROR_SSL: /* setup errno! */
|
||||
/* ??? */
|
||||
__SSL_fill_err_buf ("SSL_write");
|
||||
fprintf (stderr, "%s\n", err_buf);
|
||||
break;
|
||||
case SSL_ERROR_SYSCALL:
|
||||
/* ??? */
|
||||
perror ("SSL_write/write");
|
||||
break;
|
||||
case SSL_ERROR_ZERO_RETURN:
|
||||
/* fprintf(stderr, "SSL closed on write\n"); */
|
||||
break;
|
||||
}
|
||||
|
||||
return (num);
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
_SSL_recv (SSL * ssl, char *buf, int len)
|
||||
{
|
||||
int num;
|
||||
|
||||
|
||||
num = SSL_read (ssl, buf, len);
|
||||
|
||||
switch (SSL_get_error (ssl, num))
|
||||
{
|
||||
case SSL_ERROR_SSL:
|
||||
/* ??? */
|
||||
__SSL_fill_err_buf ("SSL_read");
|
||||
fprintf (stderr, "%s\n", err_buf);
|
||||
break;
|
||||
case SSL_ERROR_SYSCALL:
|
||||
/* ??? */
|
||||
if (!would_block ())
|
||||
perror ("SSL_read/read");
|
||||
break;
|
||||
case SSL_ERROR_ZERO_RETURN:
|
||||
/* fprintf(stdeerr, "SSL closed on read\n"); */
|
||||
break;
|
||||
}
|
||||
|
||||
return (num);
|
||||
}
|
||||
|
||||
|
||||
SSL *
|
||||
_SSL_socket (SSL_CTX *ctx, int sd)
|
||||
{
|
||||
SSL *ssl;
|
||||
|
||||
|
||||
if (!(ssl = SSL_new (ctx)))
|
||||
/* FATAL */
|
||||
__SSL_critical_error ("SSL_new");
|
||||
|
||||
SSL_set_fd (ssl, sd);
|
||||
if (ctx->method == SSLv23_client_method())
|
||||
SSL_set_connect_state (ssl);
|
||||
else
|
||||
SSL_set_accept_state(ssl);
|
||||
|
||||
return (ssl);
|
||||
}
|
||||
|
||||
|
||||
char *
|
||||
_SSL_set_verify (SSL_CTX *ctx, void *verify_callback, char *cacert)
|
||||
{
|
||||
if (!SSL_CTX_set_default_verify_paths (ctx))
|
||||
{
|
||||
__SSL_fill_err_buf ("SSL_CTX_set_default_verify_paths");
|
||||
return (err_buf);
|
||||
}
|
||||
/*
|
||||
if (cacert)
|
||||
{
|
||||
if (!SSL_CTX_load_verify_locations (ctx, cacert, NULL))
|
||||
{
|
||||
__SSL_fill_err_buf ("SSL_CTX_load_verify_locations");
|
||||
return (err_buf);
|
||||
}
|
||||
}
|
||||
*/
|
||||
SSL_CTX_set_verify (ctx, SSL_VERIFY_PEER, verify_callback);
|
||||
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
_SSL_close (SSL * ssl)
|
||||
{
|
||||
SSL_set_shutdown (ssl, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
|
||||
SSL_free (ssl);
|
||||
ERR_remove_state (0); /* free state buffer */
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue