Commit 800222f8 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Anna Schumaker

nfsd4: const-ify nfsd4_ops

nfsd4_ops contains function pointers, and marking it as constant avoids
it being able to be used as an attach vector for code injections.
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent aa8217d5
...@@ -1584,7 +1584,7 @@ struct nfsd4_operation { ...@@ -1584,7 +1584,7 @@ struct nfsd4_operation {
union nfsd4_op_u *); union nfsd4_op_u *);
}; };
static struct nfsd4_operation nfsd4_ops[]; static const struct nfsd4_operation nfsd4_ops[];
static const char *nfsd4_op_name(unsigned opnum); static const char *nfsd4_op_name(unsigned opnum);
...@@ -1621,7 +1621,7 @@ static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) ...@@ -1621,7 +1621,7 @@ static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args)
return nfs_ok; return nfs_ok;
} }
static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) static inline const struct nfsd4_operation *OPDESC(struct nfsd4_op *op)
{ {
return &nfsd4_ops[op->opnum]; return &nfsd4_ops[op->opnum];
} }
...@@ -1639,10 +1639,9 @@ static bool need_wrongsec_check(struct svc_rqst *rqstp) ...@@ -1639,10 +1639,9 @@ static bool need_wrongsec_check(struct svc_rqst *rqstp)
struct nfsd4_compoundargs *argp = rqstp->rq_argp; struct nfsd4_compoundargs *argp = rqstp->rq_argp;
struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; struct nfsd4_op *this = &argp->ops[resp->opcnt - 1];
struct nfsd4_op *next = &argp->ops[resp->opcnt]; struct nfsd4_op *next = &argp->ops[resp->opcnt];
struct nfsd4_operation *thisd; const struct nfsd4_operation *thisd = OPDESC(this);
struct nfsd4_operation *nextd; const struct nfsd4_operation *nextd;
thisd = OPDESC(this);
/* /*
* Most ops check wronsec on our own; only the putfh-like ops * Most ops check wronsec on our own; only the putfh-like ops
* have special rules. * have special rules.
...@@ -1695,7 +1694,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp) ...@@ -1695,7 +1694,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp)
struct nfsd4_compoundargs *args = rqstp->rq_argp; struct nfsd4_compoundargs *args = rqstp->rq_argp;
struct nfsd4_compoundres *resp = rqstp->rq_resp; struct nfsd4_compoundres *resp = rqstp->rq_resp;
struct nfsd4_op *op; struct nfsd4_op *op;
struct nfsd4_operation *opdesc; const struct nfsd4_operation *opdesc;
struct nfsd4_compound_state *cstate = &resp->cstate; struct nfsd4_compound_state *cstate = &resp->cstate;
struct svc_fh *current_fh = &cstate->current_fh; struct svc_fh *current_fh = &cstate->current_fh;
struct svc_fh *save_fh = &cstate->save_fh; struct svc_fh *save_fh = &cstate->save_fh;
...@@ -2108,7 +2107,7 @@ static inline u32 nfsd4_seek_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) ...@@ -2108,7 +2107,7 @@ static inline u32 nfsd4_seek_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
return (op_encode_hdr_size + 3) * sizeof(__be32); return (op_encode_hdr_size + 3) * sizeof(__be32);
} }
static struct nfsd4_operation nfsd4_ops[] = { static const struct nfsd4_operation nfsd4_ops[] = {
[OP_ACCESS] = { [OP_ACCESS] = {
.op_func = nfsd4_access, .op_func = nfsd4_access,
.op_name = "OP_ACCESS", .op_name = "OP_ACCESS",
......
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