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| author | George Kadianakis <desnacked@riseup.net> | 2013-07-18 19:58:42 +0300 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2013-08-15 12:03:36 -0400 |
| commit | e1d1d7a8dabf37043cdabc11432116cf08792f22 (patch) | |
| tree | 849c3e152380e73d210c4276fa93e65c56b77e23 /src/or/ext_orport.c | |
| parent | 03e3881043de68f371883fdb82a1d2bebf4179ed (diff) | |
| download | tor-e1d1d7a8dabf37043cdabc11432116cf08792f22.tar tor-e1d1d7a8dabf37043cdabc11432116cf08792f22.tar.gz | |
Fix some ext_orport.c DOCDOCs.
Diffstat (limited to 'src/or/ext_orport.c')
| -rw-r--r-- | src/or/ext_orport.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/or/ext_orport.c b/src/or/ext_orport.c index b1bb11bd4..9b4db73c3 100644 --- a/src/or/ext_orport.c +++ b/src/or/ext_orport.c @@ -225,8 +225,12 @@ connection_ext_or_auth_handle_client_nonce(connection_t *conn) EXT_OR_PORT_AUTH_NONCE_LEN, conn) < 0) return -1; - /* DOCDOC comment this function more, with comments about what the - * protocol is. */ + /* We extract the ClientNonce from the received data, and use it to + calculate ServerHash and ServerNonce according to proposal 217. + + We also calculate our own ClientHash value and save it in the + connection state. We validate it later against the ClientHash + sent by the client. */ /* Get our nonce */ if (crypto_rand(server_nonce, EXT_OR_PORT_AUTH_NONCE_LEN) < 0) @@ -375,7 +379,16 @@ connection_ext_or_auth_process_inbuf(or_connection_t *or_conn) { connection_t *conn = TO_CONN(or_conn); - /* DOCDOC Document the state machine here! */ + /* State transitions of the Extended ORPort authentication protocol: + + EXT_OR_CONN_STATE_AUTH_WAIT_AUTH_TYPE (start state) -> + EXT_OR_CONN_STATE_AUTH_WAIT_CLIENT_NONCE -> + EXT_OR_CONN_STATE_AUTH_WAIT_CLIENT_HASH -> + EXT_OR_CONN_STATE_OPEN + + During EXT_OR_CONN_STATE_OPEN, data is handled by + connection_ext_or_process_inbuf(). + */ switch (conn->state) { /* Functionify */ case EXT_OR_CONN_STATE_AUTH_WAIT_AUTH_TYPE: |