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bpf: nodeport: don't track L2 addr for connection to local backend #24324

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merged 1 commit into from
Mar 13, 2023
Merged

bpf: nodeport: don't track L2 addr for connection to local backend #24324

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14 changes: 8 additions & 6 deletions bpf/lib/nodeport.h
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Original file line number Diff line number Diff line change
Expand Up @@ -930,13 +930,14 @@ static __always_inline int nodeport_lb6(struct __ctx_buff *ctx,
return DROP_UNKNOWN_CT;
}

ret = neigh_record_ip6(ctx);
if (ret < 0)
return ret;
if (backend_local) {
ctx_set_xfer(ctx, XFER_PKT_NO_SVC);
return CTX_ACT_OK;
}

ret = neigh_record_ip6(ctx);
if (ret < 0)
return ret;
}

/* TX request to remote backend: */
Expand Down Expand Up @@ -2078,13 +2079,14 @@ static __always_inline int nodeport_lb4(struct __ctx_buff *ctx,
return DROP_UNKNOWN_CT;
}

ret = neigh_record_ip4(ctx);
if (ret < 0)
return ret;
if (backend_local) {
ctx_set_xfer(ctx, XFER_PKT_NO_SVC);
return CTX_ACT_OK;
}

ret = neigh_record_ip4(ctx);
if (ret < 0)
return ret;
}

/* TX request to remote backend: */
Expand Down