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fix(backend): randomize new tunnel relay ports safely

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sagitchu
2026-04-01 20:16:31 +08:00
parent 8b9cdef0e4
commit 608fbf74de
5 changed files with 90 additions and 18 deletions
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go-backend/internal/http/handler/mutations.go
+24 -5
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@@ -2306,13 +2306,24 @@ func (h *Handler) forwardBatchChangeTunnel(w http.ResponseWriter, r *http.Reques
nd, ndErr := h.getNodeRecord(nid)
if ndErr != nil {
portRangeErr = ndErr
continue
portRangeOk = false
break
}
if validateErr := validateRemoteNodePort(nd, p); validateErr != nil {
portRangeOk = false
portRangeErr = validateErr
break
}
if validateErr := validateLocalNodePort(nd, p); validateErr != nil {
portRangeOk = false
portRangeErr = validateErr
break
}
if validateErr := h.validateForwardPortAvailability(nd, p, id); validateErr != nil {
portRangeOk = false
portRangeErr = validateErr
break
}
}
if !portRangeOk {
fail++
@@ -2732,7 +2743,11 @@ func (h *Handler) prepareTunnelCreateState(tx *gorm.DB, req map[string]interface
}
if !isRemote {
var err error
port, err = h.repo.PickNodePortTx(tx, nodeID, allocated, excludeTunnelID)
if excludeTunnelID > 0 {
port, err = h.repo.PickNodePortTx(tx, nodeID, allocated, excludeTunnelID)
} else {
port, err = h.repo.PickRandomNodePortTx(tx, nodeID, allocated, excludeTunnelID)
}
if err != nil {
return nil, err
}
@@ -2767,7 +2782,11 @@ func (h *Handler) prepareTunnelCreateState(tx *gorm.DB, req map[string]interface
}
if !isRemote {
var err error
port, err = h.repo.PickNodePortTx(tx, nodeID, allocated, excludeTunnelID)
if excludeTunnelID > 0 {
port, err = h.repo.PickNodePortTx(tx, nodeID, allocated, excludeTunnelID)
} else {
port, err = h.repo.PickRandomNodePortTx(tx, nodeID, allocated, excludeTunnelID)
}
if err != nil {
return nil, err
}
@@ -3641,7 +3660,7 @@ func (h *Handler) replaceTunnelChainsTx(tx *gorm.DB, tunnelID int64, req map[str
port := asInt(n["port"], 0)
if port <= 0 {
var pickErr error
port, pickErr = h.repo.PickNodePortTx(tx, nodeID, allocated, 0)
port, pickErr = h.repo.PickRandomNodePortTx(tx, nodeID, allocated, 0)
if pickErr != nil {
return pickErr
}
@@ -3671,7 +3690,7 @@ func (h *Handler) replaceTunnelChainsTx(tx *gorm.DB, tunnelID int64, req map[str
port := asInt(n["port"], 0)
if port <= 0 {
var pickErr error
port, pickErr = h.repo.PickNodePortTx(tx, nodeID, allocated, 0)
port, pickErr = h.repo.PickRandomNodePortTx(tx, nodeID, allocated, 0)
if pickErr != nil {
return pickErr
}