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Some clean-ups, DTLS psk stuff is now here. 

FossilOrigin-Name: e62ea09a2b98064395593c2a207c4280a51bbfbf01774b011656b216b7dc77af
This commit is contained in:
7u83@mail.ru 2014-08-16 11:13:23 +00:00
parent 98abe72b15
commit 3bafa48a90
1 changed files with 38 additions and 11 deletions
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49
src/capwap/dtls_openssl.c
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@ -175,20 +175,20 @@ int dtls_openssl_set_certs(struct conn * conn, struct dtls_openssl_data *d)
SSL_CTX_set_default_passwd_cb(d->ctx, pem_passwd_cb);
cw_log_debug1("DTLS - Setting key file %s",conn->dtls_key_file);
cw_dbg(DBG_DTLS,"DTLS - Using key file %s",conn->dtls_key_file);
rc = SSL_CTX_use_PrivateKey_file(d->ctx,conn->dtls_key_file,SSL_FILETYPE_PEM);
if (!rc){
dtls_openssl_log_error(0,rc,"DTLS:");
dtls_openssl_log_error(0,rc,"DTLS certificate errro:");
dtls_openssl_data_destroy(d);
return 0;
}
cw_log_debug1("DTLS - Setting cert file %s",conn->dtls_cert_file);
cw_dbg(DBG_DTLS,"DTLS - Using cert file %s",conn->dtls_cert_file);
rc = SSL_CTX_use_certificate_file(d->ctx,conn->dtls_cert_file,SSL_FILETYPE_PEM);
if (!rc){
dtls_openssl_log_error(0,rc,"DTLS:");
dtls_openssl_log_error(0,rc,"DTLS certificate error:");
dtls_openssl_data_destroy(d);
return 0;
}
@ -228,6 +228,18 @@ int dtls_verify_callback (int ok, X509_STORE_CTX *ctx) {
}
static unsigned int psk_server_cb(SSL *ssl,const char *identity, unsigned char * psk, unsigned int max_psk_len)
{
BIO * b = SSL_get_rbio(ssl);
struct conn * conn = b->ptr;
int l = conn->dtls_psk_len < max_psk_len ? conn->dtls_psk_len : max_psk_len;
memcpy(psk,conn->dtls_psk,l);
return l;
}
struct dtls_openssl_data * dtls_openssl_data_create(struct conn * conn, const SSL_METHOD * method, BIO_METHOD * bio)
{
struct dtls_openssl_data * d = malloc(sizeof(struct dtls_openssl_data));
@ -235,28 +247,44 @@ struct dtls_openssl_data * dtls_openssl_data_create(struct conn * conn, const SS
return 0;
memset(d,0,sizeof(struct dtls_openssl_data));
/* create new SSL ctx. (In future this should not be done for every connection) */
d->ctx = SSL_CTX_new(method);
if (!d->ctx){
dtls_openssl_data_destroy(d);
return 0;
}
SSL_CTX_set_read_ahead(d->ctx, 0);
int rc = SSL_CTX_set_cipher_list(d->ctx, conn->dtls_cipher);
if (!rc){
dtls_openssl_log_error(0,rc,"DTLS:");
dtls_openssl_log_error(0,rc,"DTLS setup error:");
dtls_openssl_data_destroy(d);
return 0;
}
/* set dtls psk if exists */
if (conn->dtls_psk)
SSL_CTX_set_psk_server_callback( d->ctx, psk_server_cb);
rc = dtls_openssl_set_certs(conn,d);
if (!rc)
return 0;
SSL_CTX_set_read_ahead(d->ctx, 0);
// SSL_CTX_set_session_cache_mode(d->ctx, SSL_SESS_CACHE_BOTH);
SSL_CTX_set_options(d->ctx, SSL_OP_COOKIE_EXCHANGE); //|SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TICKET);
rc = SSL_CTX_load_verify_locations(d->ctx,"/home/tube/v/actube/ssl/root-ca.pem",NULL);
printf("Locations RC = %d\n",rc);
// SSL_CTX_set_options(d->ctx, SSL_OP_ALL);
@ -282,6 +310,9 @@ struct dtls_openssl_data * dtls_openssl_data_create(struct conn * conn, const SS
SSL_CTX_set_mode(d->ctx,SSL_MODE_SEND_SERVERHELLO_TIME);
rsa_512 = RSA_generate_key(512,RSA_F4,NULL,NULL);
// if (rsa_512 == NULL)
// evaluate_error_queue();
@ -323,10 +354,6 @@ struct dtls_openssl_data * dtls_openssl_data_create(struct conn * conn, const SS
}
*/
rc = dtls_openssl_set_certs(conn,d);
if (!rc)
return 0;
d->ssl = SSL_new(d->ctx);