Part of fix for bug 617: allow connection_ap_handshake_attach_circuit() to mark connections, to avoid double-mark warnings. Note that this is an incomplete refactoring.
svn:r14066
Re-tune mempool parametes based on testing on peacetime: use smaller chuncks, free them a little more aggressively, and try very hard to concentrate allocations on fuller chunks. Also, lots of new documentation.
svn:r13484
Add a couple of (currently disabled) strategies for trying to avoid using too much ram in memory pools: prefer putting new cells in almost-full chunks, and be willing to free the last empty chunk if we have not needed it for a while. Also add better output to mp_pool_log_status to track how many mallocs a given memory pool strategy is saving us, so we can tune the mempool parameters.
svn:r13428
Be more thorough about memory poisoning and clearing. Add an in-place version of aes_crypt in order to remove a memcpy from relay_crypt_one_payload.
svn:r13414
Tor can warn and/or refuse connections to ports commonly used with
vulnerable-plaintext protocols.
We still need to figure out some good defaults for them.
svn:r13198
Use reference-counting to avoid allocating a zillion little addr_policy_t objects. (This is an old patch that had been sitting on my hard drive for a while.)
svn:r13017
Add a new ClientDNSRejectInternalAddresses option (default: on) to refuse to believe that any address can map to or from an internal address. This blocks some kinds of potential browser-based attacks, especially on hosts using DNSPort. Also clarify behavior in some comments. Backport candiate?
svn:r11287
Fix warnings from -Wunsafe-loop-optimizations, which incidentally turned up a logic bug in connection_or_flush_from_first_active_circuit that would overcount the number of cells flushed.
svn:r10199
Fix a bug in displaying memory pool usage. Also dump cell allocation, and track padded_cell_ts as they are allocated and freed, to make sure we are not leaking cells.
svn:r9992
Add code to shrink the cell memory pool by discarding empty chunks that have been empty for the last 60 seconds. Also, instead of having test.c duplicate declarations for exposed functions, put them inside #ifdef foo_PRIVATE blocks in the headers. This prevents bugs where test.c gets out of sync.
svn:r9944
Yet another attempted Bug 411 fix: Under some circumstances, a circuit can have cells without being active. The likeliest is that it has been unlinked from all connections in preparation for closing. Therefore, stop enforcing this non-invariant.
svn:r9936
Split type of "packed cell" from "parsed cell"; pack cells before queueing them on circuits. This will help us avoid dumb errors when we confuse the two types.
svn:r9935
A surprisingly simple patch to stop reading on edge connections when their circuits get too full, and start again when they empty out. This lets us remove the logic to block begin_dir conns when the corresponding or conns get full: it was already broken by cell queues anyway.
svn:r9905
Initial version of circuit-based cell queues. Instead of hammering or_conns with piles of cells, queue cells on their corresponding circuits, and append them to the or_conn as needed. This seems to work so far, but needs a bit more work. This will break the memory-use-limitation patch for begin_dir conns: the solution will be a fun but fiddly.
svn:r9904
