diff options
Diffstat (limited to 'datapath-windows')
| -rw-r--r-- | datapath-windows/ovsext/Conntrack.c | 10 | ||||
| -rw-r--r-- | datapath-windows/ovsext/Conntrack.h | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/datapath-windows/ovsext/Conntrack.c b/datapath-windows/ovsext/Conntrack.c index ce8c1c85e..8bcda05e2 100644 --- a/datapath-windows/ovsext/Conntrack.c +++ b/datapath-windows/ovsext/Conntrack.c @@ -722,6 +722,16 @@ OvsCtExecute_(OvsForwardingContext *fwdCtx, entry = NULL; } + if (!entry && commit && ctTotalEntries >= CT_MAX_ENTRIES) { + /* Don't proceed with processing if the max limit has been hit. + * This blocks only new entries from being created and doesn't + * affect existing connections. + */ + NdisReleaseRWLock(ovsConntrackLockObj, &lockState); + OVS_LOG_ERROR("Conntrack Limit hit: %lu", ctTotalEntries); + return NDIS_STATUS_RESOURCES; + } + if (!entry) { /* If no matching entry was found, create one and add New state */ entry = OvsCtEntryCreate(fwdCtx, key->ipKey.nwProto, diff --git a/datapath-windows/ovsext/Conntrack.h b/datapath-windows/ovsext/Conntrack.h index bca7d9051..be5f34dc5 100644 --- a/datapath-windows/ovsext/Conntrack.h +++ b/datapath-windows/ovsext/Conntrack.h @@ -131,6 +131,7 @@ typedef struct OvsConntrackKeyLookupCtx { BOOLEAN related; } OvsConntrackKeyLookupCtx; +#define CT_MAX_ENTRIES 1 << 21 #define CT_HASH_TABLE_SIZE ((UINT32)1 << 10) #define CT_HASH_TABLE_MASK (CT_HASH_TABLE_SIZE - 1) #define CT_INTERVAL_SEC 10000000LL //1s |