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Patch from lark: if we get two extend cells for the same circuit id, drop the second. Previously, we had leaked an extend_info if the target connection was not open when the second arrived.

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svn:r18668
This commit is contained in:
Nick Mathewson 2009-02-21 19:07:05 +00:00
parent 192b701fac
commit 261670b57e
2 changed files with 7 additions and 0 deletions
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2
ChangeLog
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@ -30,6 +30,8 @@ Changes in version 0.2.1.13-????? - 2009-02-??
seconds. Bugfix on 0.1.2.7-alpha; reported by Mike Perry.
- Drop begin cells to a hidden service if they come from the middle of a
circuit. Patch from lark.
- When we erroneously receive two EXTEND cells for the same circuit ID
on the same connection, drop the second. Patch from lark.
o Minor features:
- On Linux, use the prctl call to re-enable core dumps when the user

5
src/or/circuitbuild.c
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@ -735,6 +735,11 @@ circuit_extend(cell_t *cell, circuit_t *circ)
"n_conn already set. Bug/attack. Closing.");
return -1;
}
if (circ->n_hop) {
log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL,
"conn to next hop already launched. Bug/attack. Closing.");
return -1;
}
if (!server_mode(get_options())) {
log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL,