Remainder of SSL purpose and trust code: trust and purpose setting in
[openssl.git] / apps / s_server.c
index e1588c5ee00cf5e690b2cd11873ce5e75dc19938..7a3a028b6e296e43b897020ca2af2dd705dccad0 100644 (file)
  * [including the GNU Public Licence.]
  */
 
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifdef NO_STDIO
+#define APPS_WIN16
+#endif
+
 /* With IPv6, it looks like Digital has mixed up the proper order of
    recursive header file inclusion, resulting in the compiler complaining
    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 typedef unsigned int u_int;
 #endif
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#ifdef NO_STDIO
-#define APPS_WIN16
-#endif
 #include <openssl/lhash.h>
 #include <openssl/bn.h>
 #define USE_SOCKETS
@@ -83,6 +85,10 @@ typedef unsigned int u_int;
 #include <openssl/ssl.h>
 #include "s_apps.h"
 
+#ifdef WINDOWS
+#include <conio.h>
+#endif
+
 #if (defined(VMS) && __VMS_VER < 70000000)
 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 #undef FIONBIO
@@ -93,7 +99,7 @@ typedef unsigned int u_int;
 #endif
 
 #ifndef NO_RSA
-static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export,int keylength);
+static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 #endif
 static int sv_body(char *hostname, int s, unsigned char *context);
 static int www_body(char *hostname, int s, unsigned char *context);
@@ -102,17 +108,19 @@ static void sv_usage(void);
 static int init_ssl_connection(SSL *s);
 static void print_stats(BIO *bp,SSL_CTX *ctx);
 #ifndef NO_DH
-static DH *load_dh_param(void );
+static DH *load_dh_param(char *dhfile);
 static DH *get_dh512(void);
 #endif
-/* static void s_server_init(void);*/
+#ifdef MONOLITH
+static void s_server_init(void);
+#endif
 
 #ifndef S_ISDIR
-#if defined(VMS) && !defined(__DECC)
-#define S_ISDIR(a)     (((a) & S_IFMT) == S_IFDIR)
-#else
-#define S_ISDIR(a)     (((a) & _S_IFMT) == _S_IFDIR)
-#endif
+# if defined(_S_IFMT) && defined(_S_IFDIR)
+#  define S_ISDIR(a)   (((a) & _S_IFMT) == _S_IFDIR)
+# else
+#  define S_ISDIR(a)   (((a) & S_IFMT) == S_IFDIR)
+# endif
 #endif
 
 #ifndef NO_DH
@@ -145,15 +153,13 @@ static DH *get_dh512(void)
 
 #undef BUFSIZZ
 #define BUFSIZZ        16*1024
-static int bufsize=32;
+static int bufsize=BUFSIZZ;
 static int accept_socket= -1;
 
 #define TEST_CERT      "server.pem"
 #undef PROG
 #define PROG           s_server_main
 
-#define DH_PARAM       "server.pem"
-
 extern int verify_depth;
 
 static char *cipher=NULL;
@@ -165,6 +171,7 @@ static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 static int s_nbio=0;
 #endif
 static int s_nbio_test=0;
+int s_crlf=0;
 static SSL_CTX *ctx=NULL;
 static int www=0;
 
@@ -172,9 +179,12 @@ static BIO *bio_s_out=NULL;
 static int s_debug=0;
 static int s_quiet=0;
 
-#if 0
+static int hack=0;
+
+#ifdef MONOLITH
 static void s_server_init(void)
        {
+       accept_socket=-1;
        cipher=NULL;
        s_server_verify=SSL_VERIFY_NONE;
        s_dcert_file=NULL;
@@ -191,6 +201,7 @@ static void s_server_init(void)
        bio_s_out=NULL;
        s_debug=0;
        s_quiet=0;
+       hack=0;
        }
 #endif
 
@@ -204,14 +215,17 @@ static void sv_usage(void)
        BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
        BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
        BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
-       BIO_printf(bio_err," -key arg      - RSA file to use, PEM format assumed, in cert file if\n");
+       BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
        BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
        BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
        BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
+       BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
+       BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 #ifdef FIONBIO
        BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 #endif
        BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
+       BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
        BIO_printf(bio_err," -debug        - Print more output\n");
        BIO_printf(bio_err," -state        - Print the SSL states\n");
        BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
@@ -226,6 +240,9 @@ static void sv_usage(void)
        BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
        BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
        BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
+#ifndef NO_DH
+       BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
+#endif
        BIO_printf(bio_err," -bugs         - Turn on SSL bug compatability\n");
        BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
        BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
@@ -233,7 +250,6 @@ static void sv_usage(void)
 
 static int local_argc=0;
 static char **local_argv;
-static int hack=0;
 
 #ifdef CHARSET_EBCDIC
 static int ebcdic_new(BIO *bi);
@@ -390,10 +406,11 @@ int MAIN(int argc, char *argv[])
        short port=PORT;
        char *CApath=NULL,*CAfile=NULL;
        char *context = NULL;
+       char *dhfile = NULL;
        int badop=0,bugs=0;
        int ret=1;
        int off=0;
-       int no_tmp_rsa=0,nocert=0;
+       int no_tmp_rsa=0,no_dhe=0,nocert=0;
        int state=0;
        SSL_METHOD *meth=NULL;
 #ifndef NO_DH
@@ -412,8 +429,9 @@ int MAIN(int argc, char *argv[])
        local_argv=argv;
 
        apps_startup();
-       s_quiet=0;
-       s_debug=0;
+#ifdef MONOLITH
+       s_server_init();
+#endif
 
        if (bio_err == NULL)
                bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
@@ -466,6 +484,11 @@ int MAIN(int argc, char *argv[])
                        if (--argc < 1) goto bad;
                        s_key_file= *(++argv);
                        }
+               else if (strcmp(*argv,"-dhparam") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       dhfile = *(++argv);
+                       }
                else if (strcmp(*argv,"-dcert") == 0)
                        {
                        if (--argc < 1) goto bad;
@@ -512,12 +535,16 @@ int MAIN(int argc, char *argv[])
                        { hack=1; }
                else if (strcmp(*argv,"-state") == 0)
                        { state=1; }
+               else if (strcmp(*argv,"-crlf") == 0)
+                       { 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)
+                       { no_dhe=1; }
                else if (strcmp(*argv,"-www") == 0)
                        { www=1; }
                else if (strcmp(*argv,"-WWW") == 0)
@@ -556,6 +583,8 @@ bad:
                goto end;
                }
 
+       app_RAND_load_file(NULL, bio_err, 0);
+
        if (bio_s_out == NULL)
                {
                if (s_quiet && !s_debug)
@@ -620,21 +649,23 @@ bad:
                }
 
 #ifndef NO_DH
-       /* EAY EAY EAY evil hack */
-       dh=load_dh_param();
-       if (dh != NULL)
+       if (!no_dhe)
                {
-               BIO_printf(bio_s_out,"Setting temp DH parameters\n");
-               }
-       else
-               {
-               BIO_printf(bio_s_out,"Using default temp DH parameters\n");
-               dh=get_dh512();
-               }
-       BIO_flush(bio_s_out);
+               dh=load_dh_param(dhfile ? dhfile : s_cert_file);
+               if (dh != NULL)
+                       {
+                       BIO_printf(bio_s_out,"Setting temp DH parameters\n");
+                       }
+               else
+                       {
+                       BIO_printf(bio_s_out,"Using default temp DH parameters\n");
+                       dh=get_dh512();
+                       }
+               (void)BIO_flush(bio_s_out);
 
-       SSL_CTX_set_tmp_dh(ctx,dh);
-       DH_free(dh);
+               SSL_CTX_set_tmp_dh(ctx,dh);
+               DH_free(dh);
+               }
 #endif
        
        if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
@@ -675,7 +706,8 @@ bad:
        SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
                sizeof s_server_session_id_context);
 
-       SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
+       if (CAfile != NULL)
+           SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 
        BIO_printf(bio_s_out,"ACCEPT\n");
        if (www)
@@ -686,6 +718,7 @@ bad:
        ret=0;
 end:
        if (ctx != NULL) SSL_CTX_free(ctx);
+       X509_cleanup();
        if (bio_s_out != NULL)
                {
                BIO_free(bio_s_out);
@@ -728,6 +761,9 @@ static int sv_body(char *hostname, int s, unsigned char *context)
        unsigned long l;
        SSL *con=NULL;
        BIO *sbio;
+#ifdef WINDOWS
+       struct timeval tv;
+#endif
 
        if ((buf=Malloc(bufsize)) == NULL)
                {
@@ -787,11 +823,47 @@ static int sv_body(char *hostname, int s, unsigned char *context)
                 * the compiler: if you do have a cast then you can either
                 * go for (int *) or (void *).
                 */
-               i=select(width,(void *)&readfds,NULL,NULL,NULL);
-               if (i <= 0) continue;
-               if (FD_ISSET(fileno(stdin),&readfds))
+#ifdef WINDOWS
+               /* Under Windows we can't select on stdin: only
+                * on sockets. As a workaround we timeout the select every
+                * second and check for any keypress. In a proper Windows
+                * application we wouldn't do this because it is inefficient.
+                */
+               tv.tv_sec = 1;
+               tv.tv_usec = 0;
+               i=select(width,(void *)&readfds,NULL,NULL,&tv);
+               if((i < 0) || (!i && !_kbhit() ) )continue;
+               if(_kbhit())
+#else
+               i=select(width,(void *)&readfds,NULL,NULL,NULL);
+               if (i <= 0) continue;
+               if (FD_ISSET(fileno(stdin),&readfds))
+#endif
                        {
-                       i=read(fileno(stdin),buf,bufsize);
+                       if (s_crlf)
+                               {
+                               int j, lf_num;
+
+                               i=read(fileno(stdin), buf, bufsize/2);
+                               lf_num = 0;
+                               /* both loops are skipped when i <= 0 */
+                               for (j = 0; j < i; j++)
+                                       if (buf[j] == '\n')
+                                               lf_num++;
+                               for (j = i-1; j >= 0; j--)
+                                       {
+                                       buf[j+lf_num] = buf[j];
+                                       if (buf[j] == '\n')
+                                               {
+                                               lf_num--;
+                                               i++;
+                                               buf[j+lf_num] = '\r';
+                                               }
+                                       }
+                               assert(lf_num == 0);
+                               }
+                       else
+                               i=read(fileno(stdin),buf,bufsize);
                        if (!s_quiet)
                                {
                                if ((i <= 0) || (buf[0] == 'Q'))
@@ -1012,14 +1084,14 @@ static int init_ssl_connection(SSL *con)
        }
 
 #ifndef NO_DH
-static DH *load_dh_param(void)
+static DH *load_dh_param(char *dhfile)
        {
        DH *ret=NULL;
        BIO *bio;
 
-       if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
+       if ((bio=BIO_new_file(dhfile,"r")) == NULL)
                goto err;
-       ret=PEM_read_bio_DHparams(bio,NULL,NULL);
+       ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
 err:
        if (bio != NULL) BIO_free(bio);
        return(ret);
@@ -1394,7 +1466,7 @@ err:
        }
 
 #ifndef NO_RSA
-static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export, int keylength)
+static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
        {
        static RSA *rsa_tmp=NULL;
 
@@ -1403,13 +1475,13 @@ static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export, int keylength)
                if (!s_quiet)
                        {
                        BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
-                       BIO_flush(bio_err);
+                       (void)BIO_flush(bio_err);
                        }
                rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
                if (!s_quiet)
                        {
                        BIO_printf(bio_err,"\n");
-                       BIO_flush(bio_err);
+                       (void)BIO_flush(bio_err);
                        }
                }
        return(rsa_tmp);