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2dc3a69de0
No HCA or RNIC in the kernel tree requires the use of ALLPHYSICAL. ALLPHYSICAL advertises in the clear on the network fabric an R_key that is good for all of the client's memory. No known exploit exists, but theoretically any user on the server can use that R_key on the client's QP to read or update any part of the client's memory. ALLPHYSICAL exposes the client to server bugs, including: o base/bounds errors causing data outside the i/o buffer to be accessed o RDMA access after reply causing data corruption and/or integrity fail ALLPHYSICAL can't protect application memory regions from server update after a local signal or soft timeout has terminated an RPC. ALLPHYSICAL chunks are no larger than a page. Special cases to handle small chunks and long chunk lists have been a source of implementation complexity and bugs. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Tested-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
9 lines
297 B
Makefile
9 lines
297 B
Makefile
obj-$(CONFIG_SUNRPC_XPRT_RDMA) += rpcrdma.o
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rpcrdma-y := transport.o rpc_rdma.o verbs.o \
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fmr_ops.o frwr_ops.o \
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svc_rdma.o svc_rdma_backchannel.o svc_rdma_transport.o \
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svc_rdma_marshal.o svc_rdma_sendto.o svc_rdma_recvfrom.o \
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module.o
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rpcrdma-$(CONFIG_SUNRPC_BACKCHANNEL) += backchannel.o
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