#include "../ssl_locl.h"
-void SSL3_BUFFER_set_data(SSL3_BUFFER *b, unsigned char *d, int n)
+void SSL3_BUFFER_set_data(SSL3_BUFFER *b, const unsigned char *d, int n)
{
if(d != NULL)
memcpy(b->buf, d, n);
OPENSSL_free(b->buf);
b->buf = NULL;
}
+
+int ssl3_setup_read_buffer(SSL *s)
+{
+ unsigned char *p;
+ size_t len, align = 0, headerlen;
+ SSL3_BUFFER *b;
+
+ b = RECORD_LAYER_get_rbuf(&s->rlayer);
+
+ if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
+ headerlen = DTLS1_RT_HEADER_LENGTH;
+ else
+ headerlen = SSL3_RT_HEADER_LENGTH;
+
+#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
+ align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
+#endif
+
+ if (b->buf == NULL) {
+ len = SSL3_RT_MAX_PLAIN_LENGTH
+ + SSL3_RT_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
+ if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER) {
+ s->s3->init_extra = 1;
+ len += SSL3_RT_MAX_EXTRA;
+ }
+#ifndef OPENSSL_NO_COMP
+ if (ssl_allow_compression(s))
+ len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
+#endif
+ if ((p = OPENSSL_malloc(len)) == NULL)
+ goto err;
+ b->buf = p;
+ b->len = len;
+ }
+
+ RECORD_LAYER_set_packet(&s->rlayer, &(b->buf[0]));
+ return 1;
+
+ err:
+ SSLerr(SSL_F_SSL3_SETUP_READ_BUFFER, ERR_R_MALLOC_FAILURE);
+ return 0;
+}
+
+int ssl3_setup_write_buffer(SSL *s)
+{
+ unsigned char *p;
+ size_t len, align = 0, headerlen;
+ SSL3_BUFFER *wb;
+
+ wb = RECORD_LAYER_get_wbuf(&s->rlayer);
+
+ if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
+ headerlen = DTLS1_RT_HEADER_LENGTH + 1;
+ else
+ headerlen = SSL3_RT_HEADER_LENGTH;
+
+#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
+ align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
+#endif
+
+ if (wb->buf == NULL) {
+ len = s->max_send_fragment
+ + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
+#ifndef OPENSSL_NO_COMP
+ if (ssl_allow_compression(s))
+ len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
+#endif
+ if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
+ len += headerlen + align + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD;
+
+ if ((p = OPENSSL_malloc(len)) == NULL)
+ goto err;
+ wb->buf = p;
+ wb->len = len;
+ }
+
+ return 1;
+
+ err:
+ SSLerr(SSL_F_SSL3_SETUP_WRITE_BUFFER, ERR_R_MALLOC_FAILURE);
+ return 0;
+}
+
+int ssl3_setup_buffers(SSL *s)
+{
+ if (!ssl3_setup_read_buffer(s))
+ return 0;
+ if (!ssl3_setup_write_buffer(s))
+ return 0;
+ return 1;
+}
+
+int ssl3_release_write_buffer(SSL *s)
+{
+ SSL3_BUFFER *wb;
+
+ wb = RECORD_LAYER_get_wbuf(&s->rlayer);
+
+ if (wb->buf != NULL) {
+ OPENSSL_free(wb->buf);
+ wb->buf = NULL;
+ }
+ return 1;
+}
+
+int ssl3_release_read_buffer(SSL *s)
+{
+ SSL3_BUFFER *b;
+
+ b = RECORD_LAYER_get_rbuf(&s->rlayer);
+ if (b->buf != NULL) {
+ OPENSSL_free(b->buf);
+ b->buf = NULL;
+ }
+ return 1;
+}