Consolidation of multipath logic. Better system separation

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Joseph Henry 2021-09-01 21:37:49 -07:00
parent 19391858d4
commit e1af003e4f
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23 changed files with 2004 additions and 3162 deletions

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@ -420,157 +420,6 @@ enum ZT_ResultCode
*/
#define ZT_ResultCode_isFatal(x) ((((int)(x)) >= 100)&&(((int)(x)) < 1000))
/**
* Multipath bonding policy
*/
enum ZT_MultipathBondingPolicy
{
/**
* Normal operation. No fault tolerance, no load balancing
*/
ZT_BONDING_POLICY_NONE = 0,
/**
* Sends traffic out on only one path at a time. Configurable immediate
* fail-over.
*/
ZT_BONDING_POLICY_ACTIVE_BACKUP = 1,
/**
* Sends traffic out on all paths
*/
ZT_BONDING_POLICY_BROADCAST = 2,
/**
* Stripes packets across all paths
*/
ZT_BONDING_POLICY_BALANCE_RR = 3,
/**
* Packets destined for specific peers will always be sent over the same
* path.
*/
ZT_BONDING_POLICY_BALANCE_XOR = 4,
/**
* Balances flows among all paths according to path performance
*/
ZT_BONDING_POLICY_BALANCE_AWARE = 5
};
/**
* Multipath active re-selection policy (linkSelectMethod)
*/
enum ZT_MultipathLinkSelectMethod
{
/**
* Primary link regains status as active link whenever it comes back up
* (default when links are explicitly specified)
*/
ZT_MULTIPATH_RESELECTION_POLICY_ALWAYS = 0,
/**
* Primary link regains status as active link when it comes back up and
* (if) it is better than the currently-active link.
*/
ZT_MULTIPATH_RESELECTION_POLICY_BETTER = 1,
/**
* Primary link regains status as active link only if the currently-active
* link fails.
*/
ZT_MULTIPATH_RESELECTION_POLICY_FAILURE = 2,
/**
* The primary link can change if a superior path is detected.
* (default if user provides no fail-over guidance)
*/
ZT_MULTIPATH_RESELECTION_POLICY_OPTIMIZE = 3
};
/**
* Mode of multipath link interface
*/
enum ZT_MultipathLinkMode
{
ZT_MULTIPATH_SLAVE_MODE_PRIMARY = 0,
ZT_MULTIPATH_SLAVE_MODE_SPARE = 1
};
/**
* Strategy for path monitoring
*/
enum ZT_MultipathMonitorStrategy
{
/**
* Use bonding policy's default strategy
*/
ZT_MULTIPATH_SLAVE_MONITOR_STRATEGY_DEFAULT = 0,
/**
* Does not actively send probes to judge aliveness, will rely
* on conventional traffic and summary statistics.
*/
ZT_MULTIPATH_SLAVE_MONITOR_STRATEGY_PASSIVE = 1,
/**
* Sends probes at a constant rate to judge aliveness.
*/
ZT_MULTIPATH_SLAVE_MONITOR_STRATEGY_ACTIVE = 2,
/**
* Sends probes at varying rates which correlate to native
* traffic loads to judge aliveness.
*/
ZT_MULTIPATH_SLAVE_MONITOR_STRATEGY_DYNAMIC = 3
};
/**
* Strategy for re-balancing protocol flows
*/
enum ZT_MultipathFlowRebalanceStrategy
{
/**
* Flows will only be re-balanced among links during
* assignment or failover. This minimizes the possibility
* of sequence reordering and is thus the default setting.
*/
ZT_MULTIPATH_FLOW_REBALANCE_STRATEGY_PASSIVE = 0,
/**
* Flows that are active may be re-assigned to a new more
* suitable link if it can be done without disrupting the flow.
* This setting can sometimes cause sequence re-ordering.
*/
ZT_MULTIPATH_FLOW_REBALANCE_STRATEGY_OPPORTUNISTIC = 0,
/**
* Flows will be continuously re-assigned the most suitable link
* in order to maximize "balance". This can often cause sequence
* reordering and is thus only reccomended for protocols like UDP.
*/
ZT_MULTIPATH_FLOW_REBALANCE_STRATEGY_AGGRESSIVE = 2
};
/**
* Indices for the path quality weight vector
*/
enum ZT_MultipathQualityWeightIndex
{
ZT_QOS_LAT_IDX,
ZT_QOS_LTM_IDX,
ZT_QOS_PDV_IDX,
ZT_QOS_PLR_IDX,
ZT_QOS_PER_IDX,
ZT_QOS_THR_IDX,
ZT_QOS_THM_IDX,
ZT_QOS_THV_IDX,
ZT_QOS_AGE_IDX,
ZT_QOS_SCP_IDX,
ZT_QOS_WEIGHT_SIZE
};
/**
* Status codes sent to status update callback when things happen
*/