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- Add support for cipher suites that require a temporary RSA key for

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key-agreement.
- Tolerate signal interruptions of select().
This commit is contained in:
Geoff Thorpe 2002-02-20 05:02:50 +00:00
parent 9c5b91fd0b
commit 744c49a81b
3 changed files with 32 additions and 7 deletions
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10
demos/tunala/cb.c
View File

@ -129,5 +129,15 @@ void cb_ssl_verify_set_level(unsigned int level)
cb_ssl_verify_level = level;
}
RSA *cb_generate_tmp_rsa(SSL *s, int is_export, int keylength)
{
/* TODO: Perhaps make it so our global key can be generated on-the-fly
* after certain intervals? */
static RSA *rsa_tmp = NULL;
if(!rsa_tmp)
rsa_tmp = RSA_generate_key(keylength, RSA_F4, NULL, NULL);
return rsa_tmp;
}
#endif /* !defined(NO_OPENSSL) */

26
demos/tunala/tunala.c
View File

@ -69,8 +69,8 @@ typedef struct _tunala_world_t {
static SSL_CTX *initialise_ssl_ctx(int server_mode, const char *engine_id,
const char *CAfile, const char *cert, const char *key,
const char *dcert, const char *dkey, const char *cipher_list,
const char *dh_file, const char *dh_special, int ctx_options,
int out_state, int out_verify, int verify_mode,
const char *dh_file, const char *dh_special, int tmp_rsa,
int ctx_options, int out_state, int out_verify, int verify_mode,
unsigned int verify_depth);
static void selector_init(tunala_selector_t *selector);
static void selector_add_listener(tunala_selector_t *selector, int fd);
@ -102,6 +102,7 @@ static int def_flipped = 0;
static const char *def_cipher_list = NULL;
static const char *def_dh_file = NULL;
static const char *def_dh_special = NULL;
static int def_tmp_rsa = 1;
static int def_ctx_options = 0;
static int def_verify_mode = 0;
static unsigned int def_verify_depth = 10;
@ -127,6 +128,7 @@ static const char *helpstring =
" -cipher <list> (specifies cipher list to use)\n"
" -dh_file <path> (a PEM file containing DH parameters to use)\n"
" -dh_special <NULL|generate|standard> (see below: def=NULL)\n"
" -no_tmp_rsa (don't generate temporary RSA keys)\n"
" -no_ssl2 (disable SSLv2)\n"
" -no_ssl3 (disable SSLv3)\n"
" -no_tls1 (disable TLSv1)\n"
@ -306,6 +308,7 @@ int main(int argc, char *argv[])
const char *cipher_list = def_cipher_list;
const char *dh_file = def_dh_file;
const char *dh_special = def_dh_special;
int tmp_rsa = def_tmp_rsa;
int ctx_options = def_ctx_options;
int verify_mode = def_verify_mode;
unsigned int verify_depth = def_verify_depth;
@ -427,6 +430,9 @@ next_arg:
if(!parse_dh_special(*argv, &dh_special))
return 1;
goto next_arg;
} else if(strcmp(*argv, "-no_tmp_rsa") == 0) {
tmp_rsa = 0;
goto next_arg;
} else if(strcmp(*argv, "-no_ssl2") == 0) {
ctx_options |= SSL_OP_NO_SSLv2;
goto next_arg;
@ -487,7 +493,7 @@ next_arg:
/* Create the SSL_CTX */
if((world.ssl_ctx = initialise_ssl_ctx(server_mode, engine_id,
cacert, cert, key, dcert, dkey, cipher_list, dh_file,
dh_special, ctx_options, out_state, out_verify,
dh_special, tmp_rsa, ctx_options, out_state, out_verify,
verify_mode, verify_depth)) == NULL)
return err_str1("initialise_ssl_ctx(engine_id=%s) failed",
(engine_id == NULL) ? "NULL" : engine_id);
@ -522,8 +528,13 @@ main_loop:
/* Now do the select */
switch(selector_select(&world.selector)) {
case -1:
fprintf(stderr, "selector_select returned a badness error.\n");
if(errno != EINTR) {
fprintf(stderr, "selector_select returned a "
"badness error.\n");
goto shouldnt_happen;
}
fprintf(stderr, "Warn, selector interrupted by a signal\n");
goto main_loop;
case 0:
fprintf(stderr, "Warn, selector_select returned 0 - signal?""?\n");
goto main_loop;
@ -717,8 +728,8 @@ do_it:
static SSL_CTX *initialise_ssl_ctx(int server_mode, const char *engine_id,
const char *CAfile, const char *cert, const char *key,
const char *dcert, const char *dkey, const char *cipher_list,
const char *dh_file, const char *dh_special, int ctx_options,
int out_state, int out_verify, int verify_mode,
const char *dh_file, const char *dh_special, int tmp_rsa,
int ctx_options, int out_state, int out_verify, int verify_mode,
unsigned int verify_depth)
{
SSL_CTX *ctx = NULL, *ret = NULL;
@ -770,6 +781,9 @@ static SSL_CTX *initialise_ssl_ctx(int server_mode, const char *engine_id,
/* dcert and dkey */
if((dcert || dkey) && !ctx_set_cert(ctx, dcert, dkey))
goto err;
/* temporary RSA key generation */
if(tmp_rsa)
SSL_CTX_set_tmp_rsa_callback(ctx, cb_generate_tmp_rsa);
/* cipher_list */
if(cipher_list) {

1
demos/tunala/tunala.h
View File

@ -149,6 +149,7 @@ int cb_ssl_verify(int ok, X509_STORE_CTX *ctx);
void cb_ssl_verify_set_output(FILE *fp);
void cb_ssl_verify_set_depth(unsigned int verify_depth);
void cb_ssl_verify_set_level(unsigned int level);
RSA *cb_generate_tmp_rsa(SSL *s, int is_export, int keylength);
#endif /* !defined(NO_OPENSSL) */
#endif /* !defined(OPENSSL_NO_BUFFER) */