size_t taglen,
int mactype,
const EVP_MD *md,
- const SSL_COMP *comp);
+ COMP_METHOD *comp);
/*
* Returns:
/* Return 1 for success or 0 for error */
int (*write_records)(OSSL_RECORD_LAYER *rl, OSSL_RECORD_TEMPLATE *templates,
size_t numtempl);
+
+ /* Allocate the rl->wbuf buffers. Return 1 for success or 0 for error */
+ int (*allocate_write_buffers)(OSSL_RECORD_LAYER *rl,
+ OSSL_RECORD_TEMPLATE *templates,
+ size_t numtempl, size_t *prefix);
+
+ /*
+ * Initialise the packets in the |pkt| array using the buffers in |rl->wbuf|.
+ * Some protocol versions may use the space in |prefixtempl| to add
+ * an artificial template in front of the |templates| array and hence may
+ * initialise 1 more WPACKET than there are templates. |*wpinited|
+ * returns the number of WPACKETs in |pkt| that were successfully
+ * initialised. This must be 0 on entry and will be filled in even on error.
+ */
+ int (*initialise_write_packets)(OSSL_RECORD_LAYER *rl,
+ OSSL_RECORD_TEMPLATE *templates,
+ size_t numtempl,
+ OSSL_RECORD_TEMPLATE *prefixtempl,
+ WPACKET *pkt,
+ SSL3_BUFFER *bufs,
+ size_t *wpinited);
+
+ /* Get the actual record type to be used for a given template */
+ unsigned int (*get_record_type)(OSSL_RECORD_LAYER *rl,
+ OSSL_RECORD_TEMPLATE *template);
+
+ /* Write the record header data to the WPACKET */
+ int (*prepare_record_header)(OSSL_RECORD_LAYER *rl, WPACKET *thispkt,
+ OSSL_RECORD_TEMPLATE *templ,
+ unsigned int rectype,
+ unsigned char **recdata);
+
+ int (*add_record_padding)(OSSL_RECORD_LAYER *rl,
+ OSSL_RECORD_TEMPLATE *thistempl,
+ WPACKET *thispkt,
+ SSL3_RECORD *thiswr);
+
+ /*
+ * This applies any mac that might be necessary, ensures that we have enough
+ * space in the WPACKET to perform the encryption and sets up the
+ * SSL3_RECORD ready for that encryption.
+ */
+ int (*prepare_for_encryption)(OSSL_RECORD_LAYER *rl,
+ size_t mac_size,
+ WPACKET *thispkt,
+ SSL3_RECORD *thiswr);
+
+ /*
+ * Any updates required to the record after encryption has been applied. For
+ * example, adding a MAC if using encrypt-then-mac
+ */
+ int (*post_encryption_processing)(OSSL_RECORD_LAYER *rl,
+ size_t mac_size,
+ OSSL_RECORD_TEMPLATE *thistempl,
+ WPACKET *thispkt,
+ SSL3_RECORD *thiswr);
+
+ /*
+ * Some record layer implementations need to do some custom preparation of
+ * the BIO before we write to it. KTLS does this to prevent coalescing of
+ * control and data messages.
+ */
+ int (*prepare_write_bio)(OSSL_RECORD_LAYER *rl, int type);
};
struct ossl_record_layer_st
/* Sequence number for the next record */
unsigned char sequence[SEQ_NUM_SIZE];
+ /* Alert code to be used if an error occurs */
int alert;
/*
/* Set to 1 if this is the first handshake. 0 otherwise */
int is_first_handshake;
- /* The negotiated maximum fragment length */
+ /*
+ * The smaller of the configured and negotiated maximum fragment length
+ * or SSL3_RT_MAX_PLAIN_LENGTH if none
+ */
unsigned int max_frag_len;
/* The maxium amount of early data we can receive/send */
int tls_get_more_records(OSSL_RECORD_LAYER *rl);
int dtls_get_more_records(OSSL_RECORD_LAYER *rl);
+int dtls_prepare_record_header(OSSL_RECORD_LAYER *rl,
+ WPACKET *thispkt,
+ OSSL_RECORD_TEMPLATE *templ,
+ unsigned int rectype,
+ unsigned char **recdata);
+int dtls_write_records(OSSL_RECORD_LAYER *rl, OSSL_RECORD_TEMPLATE *templates,
+ size_t numtempl);
+
int tls_default_set_protocol_version(OSSL_RECORD_LAYER *rl, int version);
int tls_default_validate_record_header(OSSL_RECORD_LAYER *rl, SSL3_RECORD *re);
+int tls_do_compress(OSSL_RECORD_LAYER *rl, SSL3_RECORD *wr);
int tls_do_uncompress(OSSL_RECORD_LAYER *rl, SSL3_RECORD *rec);
int tls_default_post_process_record(OSSL_RECORD_LAYER *rl, SSL3_RECORD *rec);
int tls13_common_post_process_record(OSSL_RECORD_LAYER *rl, SSL3_RECORD *rec);
unsigned char *mackey, size_t mackeylen,
const EVP_CIPHER *ciph, size_t taglen,
int mactype,
- const EVP_MD *md, const SSL_COMP *comp, BIO *prev,
+ const EVP_MD *md, COMP_METHOD *comp, BIO *prev,
BIO *transport, BIO *next,
BIO_ADDR *local, BIO_ADDR *peer,
const OSSL_PARAM *settings, const OSSL_PARAM *options,
void tls_get_state(OSSL_RECORD_LAYER *rl, const char **shortstr,
const char **longstr);
int tls_set_options(OSSL_RECORD_LAYER *rl, const OSSL_PARAM *options);
+const COMP_METHOD *tls_get_compression(OSSL_RECORD_LAYER *rl);
+void tls_set_max_frag_len(OSSL_RECORD_LAYER *rl, size_t max_frag_len);
int tls_setup_read_buffer(OSSL_RECORD_LAYER *rl);
int tls_setup_write_buffer(OSSL_RECORD_LAYER *rl, size_t numwpipes,
size_t firstlen, size_t nextlen);
size_t tls_get_max_records_multiblock(OSSL_RECORD_LAYER *rl, int type,
size_t len, size_t maxfrag,
size_t *preffrag);
+int tls_allocate_write_buffers_default(OSSL_RECORD_LAYER *rl,
+ OSSL_RECORD_TEMPLATE *templates,
+ size_t numtempl, size_t *prefix);
+int tls_initialise_write_packets_default(OSSL_RECORD_LAYER *rl,
+ OSSL_RECORD_TEMPLATE *templates,
+ size_t numtempl,
+ OSSL_RECORD_TEMPLATE *prefixtempl,
+ WPACKET *pkt,
+ SSL3_BUFFER *bufs,
+ size_t *wpinited);
+int tls1_allocate_write_buffers(OSSL_RECORD_LAYER *rl,
+ OSSL_RECORD_TEMPLATE *templates,
+ size_t numtempl, size_t *prefix);
+int tls1_initialise_write_packets(OSSL_RECORD_LAYER *rl,
+ OSSL_RECORD_TEMPLATE *templates,
+ size_t numtempl,
+ OSSL_RECORD_TEMPLATE *prefixtempl,
+ WPACKET *pkt,
+ SSL3_BUFFER *bufs,
+ size_t *wpinited);
+int tls_prepare_record_header_default(OSSL_RECORD_LAYER *rl,
+ WPACKET *thispkt,
+ OSSL_RECORD_TEMPLATE *templ,
+ unsigned int rectype,
+ unsigned char **recdata);
+int tls_prepare_for_encryption_default(OSSL_RECORD_LAYER *rl,
+ size_t mac_size,
+ WPACKET *thispkt,
+ SSL3_RECORD *thiswr);
+int tls_post_encryption_processing_default(OSSL_RECORD_LAYER *rl,
+ size_t mac_size,
+ OSSL_RECORD_TEMPLATE *thistempl,
+ WPACKET *thispkt,
+ SSL3_RECORD *thiswr);
int tls_write_records_default(OSSL_RECORD_LAYER *rl,
OSSL_RECORD_TEMPLATE *templates,
size_t numtempl);
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