[RFC 07/10] SUNRPC: restrict backchannel svc IPPROTO_TCP check to IP
From: Stefan Hajnoczi <hidden>
Date: 2015-06-04 16:45:50
Also in:
linux-nfs
Subsystem:
kernel nfsd, sunrpc, and lockd servers, networking [general], nfs, sunrpc, and lockd clients, the rest · Maintainers:
Chuck Lever, Jeff Layton, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Trond Myklebust, Anna Schumaker, Linus Torvalds
The IPPROTO_TCP check only applies to AF_INET and AF_INET6. Signed-off-by: Stefan Hajnoczi <redacted> --- net/sunrpc/svc.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 78974e4..1c9c5bc 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c@@ -1365,9 +1365,16 @@ bc_svc_process(struct svc_serv *serv, struct rpc_rqst *req, /* reset result send buffer "put" position */ resv->iov_len = 0; - if (rqstp->rq_prot != IPPROTO_TCP) { - printk(KERN_ERR "No support for Non-TCP transports!\n"); - BUG(); + switch (((struct sockaddr *)&rqstp->rq_addr)->sa_family) { + case AF_INET: + case AF_INET6: + if (rqstp->rq_prot != IPPROTO_TCP) { + printk(KERN_ERR "No support for Non-TCP transports!\n"); + BUG(); + } + break; + default: + break; } /*
--
2.4.2
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