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first draft of named attributes

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This commit is contained in:
Olga Kornievskaia 2011-09-22 14:56:11 -04:00
parent 1c5935865b
commit 6eea9faa2e
11 changed files with 572 additions and 89 deletions
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96
daemon/setattr.c
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@ -497,8 +497,13 @@ static int parse_setexattr(unsigned char *buffer, uint32_t length, nfs41_upcall
int status;
setexattr_upcall_args *args = &upcall->args.setexattr;
status = get_name(&buffer, &length, &args->path);
if (status) goto out;
status = safe_read(&buffer, &length, &args->mode, sizeof(args->mode));
if (status) goto out;
status = safe_read(&buffer, &length, &args->buf_len, sizeof(args->buf_len));
if (status) goto out;
args->buf = buffer;
dprintf(1, "parsing NFS41_EA_SET: mode=%o\n", args->mode);
out:
@ -512,24 +517,97 @@ static int handle_setexattr(nfs41_upcall *upcall)
nfs41_open_state *state = upcall->state_ref;
stateid_arg stateid;
nfs41_file_info info = { 0 };
PFILE_FULL_EA_INFORMATION eainfo =
(PFILE_FULL_EA_INFORMATION)args->buf, prev = NULL;
nfs41_path_fh parent, file;
open_claim4 claim;
stateid4 open_stateid;
nfs41_component dst_name;
nfs41_write_verf verf;
uint32_t bytes_written;
UCHAR *buf;
open_delegation4 delegation = { 0 };
/* break read delegations before SETATTR */
nfs41_delegation_return(state->session, &state->file,
OPEN_DELEGATE_READ, FALSE);
nfs41_open_stateid_arg(state, &stateid);
if ((strncmp("NfsV3Attributes", eainfo->EaName, eainfo->EaNameLength) == 0 &&
strlen("NfsV3Attributes") == eainfo->EaNameLength) ||
(strncmp("NfsActOnLink", eainfo->EaName, eainfo->EaNameLength)== 0 &&
strlen("NfsActOnLink") == eainfo->EaNameLength)) {
info.mode = args->mode;
info.attrmask.arr[1] |= FATTR4_WORD1_MODE;
info.attrmask.count = 2;
status = nfs41_setattr(state->session, &state->file, &stateid, &info);
if (status) {
dprintf(1, "nfs41_setattr() failed with error %s.\n",
nfs_error_string(status));
return nfs_to_windows_error(status, ERROR_NOT_SUPPORTED);
}
} else {
status = nfs41_rpc_openattr(state->session, &state->file, TRUE, &parent.fh);
if (status) {
dprintf(1, "handle_setexattr: nfs41_rpc_openattr() failed with error %s.\n",
nfs_error_string(status));
return nfs_to_windows_error(status, ERROR_NOT_SUPPORTED);
}
/* mode */
info.mode = args->mode;
info.attrmask.arr[1] |= FATTR4_WORD1_MODE;
info.attrmask.count = 2;
while (eainfo != prev) {
/* we don't allow for extended attribute values to be larger than NFS4_EASIZE.
* thus, let's not allow setting such.
*/
if (eainfo->EaValueLength > NFS4_EASIZE) {
dprintf(1, "trying to write extended attribute value of size %d"
"max allowed %d\n", eainfo->EaValueLength, NFS4_EASIZE);
status = ERROR_INVALID_DATA;
goto out;
}
dst_name.name = eainfo->EaName;
dst_name.len = eainfo->EaNameLength;
claim.claim = CLAIM_NULL;
claim.u.null.filename = &dst_name;
status = nfs41_open(state->session, &parent, &file, &state->owner, &claim,
OPEN4_SHARE_ACCESS_WRITE, OPEN4_SHARE_DENY_BOTH, OPEN4_CREATE,
UNCHECKED4, 0664, TRUE, &open_stateid, &delegation, NULL);
if (status) {
dprintf(1, "handle_setexattr: nfs41_rpc_open() failed with error %s.\n",
nfs_error_string(status));
status = nfs_to_windows_error(status, ERROR_NOT_SUPPORTED);
goto out;
}
status = nfs41_setattr(state->session, &state->file, &stateid, &info);
if (status)
dprintf(1, "nfs41_setattr() failed with error %s.\n",
nfs_error_string(status));
stateid.stateid = open_stateid;
stateid.stateid.seqid = 0;
buf = (UCHAR *) eainfo->EaName + eainfo->EaNameLength + 1;
status = nfs41_write(state->session, &file, &stateid, buf,
eainfo->EaValueLength, 0, FILE_SYNC4, &bytes_written, &verf);
if (status) {
dprintf(1, "handle_setexattr: nfs41_write() failed w/error %s.\n",
nfs_error_string(status));
status = nfs_to_windows_error(status, ERROR_NOT_SUPPORTED);
nfs41_close(state->session, &file, &stateid);
goto out;
}
return nfs_to_windows_error(status, ERROR_NOT_SUPPORTED);
status = nfs41_close(state->session, &file, &stateid);
if (status) {
dprintf(1, "handle_setexattr: nfs41_close() failed w/error %s.\n",
nfs_error_string(status));
status = nfs_to_windows_error(status, ERROR_NOT_SUPPORTED);
goto out;
}
bytes_written = 0;
prev = eainfo;
eainfo = (FILE_FULL_EA_INFORMATION *) ((ULONG_PTR) eainfo +
eainfo->NextEntryOffset);
}
}
out:
return status;
}