addr-eng: action
addr-eng: alert
addr-eng: close_received
+addr-eng: protocol_names_num
+addr-eng: selected_protocol
\ Similar to 'addr-eng:', for fields in the 'session' substructure.
: addr-session-field:
addr-action get8 dup if
case
1 of 0 do-close endof
- 2 of addr-application_data get8 if 0x10 or then endof
+ 2 of addr-application_data get8 1 = if
+ 0x10 or
+ then endof
endcase
else
drop
\ -- If 'cnr' is zero, then incoming data is discarded until a close_notify
\ is received.
\ -- At the end, the context is terminated.
+\
+\ cnr shall be either 0 or -1.
: do-close ( cnr -- ! )
\ 'cnr' is set to non-zero when a close_notify is received from
\ the peer.
{ cnr }
- \ Get out of application data state.
- 0 addr-application_data set8
+ \ Get out of application data state. If we were accepting
+ \ application data (flag is 1), and we still expect a close_notify
+ \ from the peer (cnr is 0), then we should set the flag to 2.
+ \ In all other cases, flag should be set to 0.
+ addr-application_data get8 cnr not and 1 << addr-application_data set8
\ Flush existing payload if any.
flush-record
has-input? if
addr-record_type_in get8 21 = if
drop process-alerts
+ \ If we received a close_notify then we
+ \ no longer accept incoming application
+ \ data records.
+ 0 addr-application_data set8
else
discard-input
then
\ no_renegotiation has value 100, and we treat it
\ as a fatal alert.
dup 100 = if 256 + fail then
- 0= ret
+ 0=
endof
\ Fatal alert implies context termination.
drop 256 + fail
then
endof
- \ ChaCha20/Poly1305
- \ 5 of endof
+ \ ChaCha20+Poly1305
+ 5 of drop
+ for-input if
+ switch-chapol-in
+ else
+ switch-chapol-out
+ then
+ endof
ERR_BAD_PARAM fail
endcase
ENG->iaes_ctr, cipher_key_len);
}
+cc: switch-chapol-out ( is_client prf_id -- ) {
+ int is_client, prf_id;
+
+ prf_id = T0_POP();
+ is_client = T0_POP();
+ br_ssl_engine_switch_chapol_out(ENG, is_client, prf_id);
+}
+
+cc: switch-chapol-in ( is_client prf_id -- ) {
+ int is_client, prf_id;
+
+ prf_id = T0_POP();
+ is_client = T0_POP();
+ br_ssl_engine_switch_chapol_in(ENG, is_client, prf_id);
+}
+
\ Write Finished message.
: write-Finished ( from_client -- )
compute-Finished
read16 open-elt
begin dup while
read8 { hash } read8 { sign }
- \ We keep the value if the signature is either 1 (RSA)
- \ or 3 (ECDSA), and the hash is one of the SHA-* functions
- \ (2 to 6, from SHA-1 to SHA-512); we reject MD5.
- hash 2 >= hash 6 <= and
- sign 1 = sign 3 = or
- and if
- hashes 1 sign 1- 2 << hash + << or >hashes
+
+ \ If hash is 0x08 then this is a "new algorithm" identifier,
+ \ and we set the corresponding bit if it is in the 0..15
+ \ range. Otherwise, we keep the value only if the signature
+ \ is either 1 (RSA) or 3 (ECDSA), and the hash is one of the
+ \ SHA-* functions (2 to 6). Note that we reject MD5.
+ hash 8 = if
+ sign 15 <= if
+ 1 sign 16 + << hashes or >hashes
+ then
+ else
+ hash 2 >= hash 6 <= and
+ sign 1 = sign 3 = or
+ and if
+ hashes 1 sign 1- 2 << hash + << or >hashes
+ then
then
repeat
close-elt
\ Return key type and usages.
get-key-type-usages ;
+
+\ =======================================================================
+
+\ Copy a specific protocol name from the list to the pad. The byte
+\ length is returned.
+cc: copy-protocol-name ( idx -- len ) {
+ size_t idx = T0_POP();
+ size_t len = strlen(ENG->protocol_names[idx]);
+ memcpy(ENG->pad, ENG->protocol_names[idx], len);
+ T0_PUSH(len);
+}
+
+\ Compare name in pad with the configured list of protocol names.
+\ If a match is found, then the index is returned; otherwise, -1
+\ is returned.
+cc: test-protocol-name ( len -- n ) {
+ size_t len = T0_POP();
+ size_t u;
+
+ for (u = 0; u < ENG->protocol_names_num; u ++) {
+ const char *name;
+
+ name = ENG->protocol_names[u];
+ if (len == strlen(name) && memcmp(ENG->pad, name, len) == 0) {
+ T0_PUSH(u);
+ T0_RET();
+ }
+ }
+ T0_PUSHi(-1);
+}
projects / BearSSL / blobdiff