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Handle TRUNCATE correctly if our next channel isn't done yet.

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Patch from 'cypherpunks'. Fixes bug #7947. Bugfix on 0.0.7.1.
This commit is contained in:
Nick Mathewson 2013-03-18 15:55:55 -04:00
parent aa4fcc4f13
commit bd9901bef2
2 changed files with 12 additions and 0 deletions
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4
changes/bug7947 Normal file
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@ -0,0 +1,4 @@
o Minor bugfixes:
- Fix the handling of a TRUNCATE cell when it arrives while the circuit
extension is in progress. Fixes bug 7947; bugfix on 0.0.7.1.

8
src/or/relay.c
View File

@ -1398,6 +1398,14 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ,
"'truncate' unsupported at origin. Dropping.");
return 0;
}
if (circ->n_hop) {
if (circ->n_chan)
log_warn(LD_BUG, "n_chan and n_hop set on the same circuit!");
extend_info_free(circ->n_hop);
circ->n_hop = NULL;
tor_free(circ->n_chan_create_cell);
circuit_set_state(circ, CIRCUIT_STATE_OPEN);
}
if (circ->n_chan) {
uint8_t trunc_reason = get_uint8(cell->payload + RELAY_HEADER_SIZE);
circuit_clear_cell_queue(circ, circ->n_chan);