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NFSD: Replace READ* macros that decode the fattr4 time_set attributes 

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2020-11-19 14:01:08 -05:00
parent 393c31dd27
commit 1c3eff7ea4
1 changed files with 29 additions and 10 deletions
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39
fs/nfsd/nfs4xdr.c
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@ -219,6 +219,21 @@ nfsd4_decode_time(struct nfsd4_compoundargs *argp, struct timespec64 *tv)
DECODE_TAIL;
}
static __be32
nfsd4_decode_nfstime4(struct nfsd4_compoundargs *argp, struct timespec64 *tv)
{
__be32 *p;
p = xdr_inline_decode(argp->xdr, XDR_UNIT * 3);
if (!p)
return nfserr_bad_xdr;
p = xdr_decode_hyper(p, &tv->tv_sec);
tv->tv_nsec = be32_to_cpup(p++);
if (tv->tv_nsec >= (u32)1000000000)
return nfserr_inval;
return nfs_ok;
}
static __be32
nfsd4_decode_bitmap(struct nfsd4_compoundargs *argp, u32 *bmval)
{
@ -388,11 +403,13 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
iattr->ia_valid |= ATTR_GID;
}
if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) {
READ_BUF(4);
dummy32 = be32_to_cpup(p++);
switch (dummy32) {
u32 set_it;
if (xdr_stream_decode_u32(argp->xdr, &set_it) < 0)
return nfserr_bad_xdr;
switch (set_it) {
case NFS4_SET_TO_CLIENT_TIME:
status = nfsd4_decode_time(argp, &iattr->ia_atime);
status = nfsd4_decode_nfstime4(argp, &iattr->ia_atime);
if (status)
return status;
iattr->ia_valid |= (ATTR_ATIME | ATTR_ATIME_SET);
@ -401,15 +418,17 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
iattr->ia_valid |= ATTR_ATIME;
break;
default:
goto xdr_error;
return nfserr_bad_xdr;
}
}
if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) {
READ_BUF(4);
dummy32 = be32_to_cpup(p++);
switch (dummy32) {
u32 set_it;
if (xdr_stream_decode_u32(argp->xdr, &set_it) < 0)
return nfserr_bad_xdr;
switch (set_it) {
case NFS4_SET_TO_CLIENT_TIME:
status = nfsd4_decode_time(argp, &iattr->ia_mtime);
status = nfsd4_decode_nfstime4(argp, &iattr->ia_mtime);
if (status)
return status;
iattr->ia_valid |= (ATTR_MTIME | ATTR_MTIME_SET);
@ -418,7 +437,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
iattr->ia_valid |= ATTR_MTIME;
break;
default:
goto xdr_error;
return nfserr_bad_xdr;
}
}