NFSD: Add helper to decode NFSv4 verifiers
This helper will be used to simplify decoders in subsequent patches. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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@ -284,6 +284,18 @@ nfsd4_decode_nfstime4(struct nfsd4_compoundargs *argp, struct timespec64 *tv)
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return nfs_ok;
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}
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static __be32
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nfsd4_decode_verifier4(struct nfsd4_compoundargs *argp, nfs4_verifier *verf)
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{
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__be32 *p;
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p = xdr_inline_decode(argp->xdr, NFS4_VERIFIER_SIZE);
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if (!p)
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return nfserr_bad_xdr;
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memcpy(verf->data, p, sizeof(verf->data));
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return nfs_ok;
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}
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static __be32
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nfsd4_decode_bitmap(struct nfsd4_compoundargs *argp, u32 *bmval)
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{
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@ -1047,14 +1059,16 @@ nfsd4_decode_open(struct nfsd4_compoundargs *argp, struct nfsd4_open *open)
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goto out;
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break;
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case NFS4_CREATE_EXCLUSIVE:
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READ_BUF(NFS4_VERIFIER_SIZE);
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COPYMEM(open->op_verf.data, NFS4_VERIFIER_SIZE);
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status = nfsd4_decode_verifier4(argp, &open->op_verf);
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if (status)
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return status;
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break;
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case NFS4_CREATE_EXCLUSIVE4_1:
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if (argp->minorversion < 1)
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goto xdr_error;
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READ_BUF(NFS4_VERIFIER_SIZE);
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COPYMEM(open->op_verf.data, NFS4_VERIFIER_SIZE);
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status = nfsd4_decode_verifier4(argp, &open->op_verf);
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if (status)
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return status;
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status = nfsd4_decode_fattr4(argp, open->op_bmval,
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ARRAY_SIZE(open->op_bmval),
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&open->op_iattr, &open->op_acl,
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