diff options
| -rw-r--r-- | include/linux/sunrpc/xdr.h | 16 | ||||
| -rw-r--r-- | net/sunrpc/auth.c | 13 | ||||
| -rw-r--r-- | net/sunrpc/auth_gss/auth_gss.c | 21 |
3 files changed, 23 insertions, 27 deletions
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index 9e340fa..c6b53d1 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -12,6 +12,7 @@ #include <linux/uio.h> #include <asm/byteorder.h> #include <linux/scatterlist.h> +#include <linux/smp_lock.h> /* * Buffer adjustment @@ -36,6 +37,21 @@ struct xdr_netobj { typedef int (*kxdrproc_t)(void *rqstp, __be32 *data, void *obj); /* + * We're still requiring the BKL in the xdr code until it's been + * more carefully audited, at which point this wrapper will become + * unnecessary. + */ +static inline int rpc_call_xdrproc(kxdrproc_t xdrproc, void *rqstp, __be32 *data, void *obj) +{ + int ret; + + lock_kernel(); + ret = xdrproc(rqstp, data, obj); + unlock_kernel(); + return ret; +} + +/* * Basic structure for transmission/reception of a client XDR message. * Features a header (for a linear buffer containing RPC headers * and the data payload for short messages), and then an array of diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 29a8ecc..1ea2755 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -13,7 +13,6 @@ #include <linux/errno.h> #include <linux/sunrpc/clnt.h> #include <linux/spinlock.h> -#include <linux/smp_lock.h> #ifdef RPC_DEBUG # define RPCDBG_FACILITY RPCDBG_AUTH @@ -476,17 +475,13 @@ rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp, __be32 *data, void *obj) { struct rpc_cred *cred = task->tk_msg.rpc_cred; - int ret; dprintk("RPC: %5u using %s cred %p to wrap rpc data\n", task->tk_pid, cred->cr_ops->cr_name, cred); if (cred->cr_ops->crwrap_req) return cred->cr_ops->crwrap_req(task, encode, rqstp, data, obj); /* By default, we encode the arguments normally. */ - lock_kernel(); - ret = encode(rqstp, data, obj); - unlock_kernel(); - return ret; + return rpc_call_xdrproc(encode, rqstp, data, obj); } int @@ -494,7 +489,6 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp, __be32 *data, void *obj) { struct rpc_cred *cred = task->tk_msg.rpc_cred; - int ret; dprintk("RPC: %5u using %s cred %p to unwrap rpc data\n", task->tk_pid, cred->cr_ops->cr_name, cred); @@ -502,10 +496,7 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp, return cred->cr_ops->crunwrap_resp(task, decode, rqstp, data, obj); /* By default, we decode the arguments normally. */ - lock_kernel(); - ret = decode(rqstp, data, obj); - unlock_kernel(); - return ret; + return rpc_call_xdrproc(decode, rqstp, data, obj); } int diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index abfda33..4bbc59c 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -43,7 +43,6 @@ #include <linux/types.h> #include <linux/slab.h> #include <linux/sched.h> -#include <linux/smp_lock.h> #include <linux/pagemap.h> #include <linux/sunrpc/clnt.h> #include <linux/sunrpc/auth.h> @@ -1000,9 +999,7 @@ gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx, offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base; *p++ = htonl(rqstp->rq_seqno); - lock_kernel(); - status = encode(rqstp, p, obj); - unlock_kernel(); + status = rpc_call_xdrproc(encode, rqstp, p, obj); if (status) return status; @@ -1096,9 +1093,7 @@ gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx, offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base; *p++ = htonl(rqstp->rq_seqno); - lock_kernel(); - status = encode(rqstp, p, obj); - unlock_kernel(); + status = rpc_call_xdrproc(encode, rqstp, p, obj); if (status) return status; @@ -1157,16 +1152,12 @@ gss_wrap_req(struct rpc_task *task, /* The spec seems a little ambiguous here, but I think that not * wrapping context destruction requests makes the most sense. */ - lock_kernel(); - status = encode(rqstp, p, obj); - unlock_kernel(); + status = rpc_call_xdrproc(encode, rqstp, p, obj); goto out; } switch (gss_cred->gc_service) { case RPC_GSS_SVC_NONE: - lock_kernel(); - status = encode(rqstp, p, obj); - unlock_kernel(); + status = rpc_call_xdrproc(encode, rqstp, p, obj); break; case RPC_GSS_SVC_INTEGRITY: status = gss_wrap_req_integ(cred, ctx, encode, @@ -1282,9 +1273,7 @@ gss_unwrap_resp(struct rpc_task *task, cred->cr_auth->au_rslack = cred->cr_auth->au_verfsize + (p - savedp) + (savedlen - head->iov_len); out_decode: - lock_kernel(); - status = decode(rqstp, p, obj); - unlock_kernel(); + status = rpc_call_xdrproc(decode, rqstp, p, obj); out: gss_put_ctx(ctx); dprintk("RPC: %5u gss_unwrap_resp returning %d\n", task->tk_pid, |