diff options
Diffstat (limited to 'node/Constants.hpp')
| -rw-r--r-- | node/Constants.hpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/node/Constants.hpp b/node/Constants.hpp index fddfce6a..b85c1b93 100644 --- a/node/Constants.hpp +++ b/node/Constants.hpp @@ -275,6 +275,23 @@ #define ZT_MULTIPATH_BINDER_REFRESH_PERIOD 5000 /** + * Time horizon for VERB_QOS_MEASUREMENT and VERB_ACK packet processesing cutoff + */ +#define ZT_PATH_QOS_ACK_CUTOFF_TIME 30000 + +/** + * Maximum number of VERB_QOS_MEASUREMENT and VERB_ACK packets allowed to be + * processesed within cutoff time. Separate totals are kept for each type but + * the limit is the same for both. + * + * This limits how often this peer will compute statistical estimates + * of various QoS measures from a VERB_QOS_MEASUREMENT or VERB_ACK packets to + * CUTOFF_LIMIT times per CUTOFF_TIME milliseconds per peer to prevent + * this from being useful for DOS amplification attacks. + */ +#define ZT_PATH_QOS_ACK_CUTOFF_LIMIT 16 + +/** * Path choice history window size. This is used to keep track of which paths were * previously selected so that we can maintain a target allocation over time. */ |