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Tor 0.4.9.0-alpha-dev
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#include <circuitpadding.h>
Data Fields | |
| const char * | name |
| circpad_machine_num_t | machine_num |
| unsigned | machine_index: 1 |
| unsigned | should_negotiate_end: 1 |
| unsigned | is_origin_side: 1 |
| unsigned | target_hopnum: 3 |
| unsigned | manage_circ_lifetime: 1 |
| circpad_machine_conditions_t | conditions |
| uint16_t | allowed_padding_count |
| uint8_t | max_padding_percent |
| circpad_state_t * | states |
| circpad_statenum_t | num_states |
Global state machine structure from the consensus
Definition at line 623 of file circuitpadding.h.
| uint16_t allowed_padding_count |
How many padding cells can be sent before we apply overhead limits? XXX: Note that we can only allow up to 64k of padding cells on an otherwise quiet circuit. Is this enough? It's 33MB.
Definition at line 664 of file circuitpadding.h.
Referenced by circpad_machine_reached_padding_limit().
| circpad_machine_conditions_t conditions |
This machine only kills fascists if the following conditions are met.
Definition at line 659 of file circuitpadding.h.
Referenced by circpad_machine_conditions_keep().
| unsigned is_origin_side |
Origin side or relay side
Definition at line 639 of file circuitpadding.h.
Referenced by circpad_machine_spec_transitioned_to_end().
| unsigned machine_index |
Which machine index slot should this machine go into in the array on the circuit_t
Definition at line 632 of file circuitpadding.h.
Referenced by circpad_machine_spec_transitioned_to_end().
| circpad_machine_num_t machine_num |
Global machine number
Definition at line 628 of file circuitpadding.h.
Referenced by circpad_machine_spec_transitioned_to_end(), circpad_shutdown_old_machines(), and free_circ_machineinfos_with_machine_num().
| unsigned manage_circ_lifetime |
If this flag is enabled, don't close circuits that use this machine even if another part of Tor wants to close this circuit.
If this flag is set, the circuitpadding subsystem will close circuits the moment the machine transitions to the END state, and only if the circuit has already been asked to be closed by another part of Tor.
Circuits that should have been closed but were kept open by a padding machine are re-purposed to CIRCUIT_PURPOSE_C_CIRCUIT_PADDING, hence machines should take that purpose into account if they are filtering circuits by purpose.
Definition at line 656 of file circuitpadding.h.
| uint8_t max_padding_percent |
Padding percent cap: Stop padding if we exceed this percent overhead. 0 means no limit. Overhead is defined as percent of total traffic, so that we can use 0..100 here. This is the same definition as used in Prop#265.
Definition at line 670 of file circuitpadding.h.
Referenced by circpad_machine_reached_padding_limit().
| const char* name |
Definition at line 625 of file circuitpadding.h.
| circpad_statenum_t num_states |
Number of states this machine has (ie: length of the states array). XXX: This field is not needed other than for safety.
Definition at line 678 of file circuitpadding.h.
Referenced by padding_machine_is_valid().
| unsigned should_negotiate_end |
Send a padding negotiate to shut down machine at end state?
Definition at line 635 of file circuitpadding.h.
Referenced by circpad_machine_spec_transitioned_to_end().
| circpad_state_t* states |
State array: indexed by circpad_statenum_t
Definition at line 673 of file circuitpadding.h.
Referenced by machine_spec_free_(), and padding_machine_is_valid().
| unsigned target_hopnum |
Which hop in the circuit should we send padding to/from? 1-indexed (ie: hop #1 is guard, #2 middle, #3 exit).
Definition at line 643 of file circuitpadding.h.
Referenced by circpad_add_matching_machines(), circpad_machine_spec_transitioned_to_end(), circpad_padding_is_from_expected_hop(), and circpad_shutdown_old_machines().
1.9.4