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2074 lines
48 KiB
2074 lines
48 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/* AFS File Server client stubs |
|
* |
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* Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved. |
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* Written by David Howells ([email protected]) |
|
*/ |
|
|
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#include <linux/init.h> |
|
#include <linux/slab.h> |
|
#include <linux/sched.h> |
|
#include <linux/circ_buf.h> |
|
#include <linux/iversion.h> |
|
#include <linux/netfs.h> |
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#include "internal.h" |
|
#include "afs_fs.h" |
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#include "xdr_fs.h" |
|
|
|
/* |
|
* decode an AFSFid block |
|
*/ |
|
static void xdr_decode_AFSFid(const __be32 **_bp, struct afs_fid *fid) |
|
{ |
|
const __be32 *bp = *_bp; |
|
|
|
fid->vid = ntohl(*bp++); |
|
fid->vnode = ntohl(*bp++); |
|
fid->unique = ntohl(*bp++); |
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*_bp = bp; |
|
} |
|
|
|
/* |
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* Dump a bad file status record. |
|
*/ |
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static void xdr_dump_bad(const __be32 *bp) |
|
{ |
|
__be32 x[4]; |
|
int i; |
|
|
|
pr_notice("AFS XDR: Bad status record\n"); |
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for (i = 0; i < 5 * 4 * 4; i += 16) { |
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memcpy(x, bp, 16); |
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bp += 4; |
|
pr_notice("%03x: %08x %08x %08x %08x\n", |
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i, ntohl(x[0]), ntohl(x[1]), ntohl(x[2]), ntohl(x[3])); |
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} |
|
|
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memcpy(x, bp, 4); |
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pr_notice("0x50: %08x\n", ntohl(x[0])); |
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} |
|
|
|
/* |
|
* decode an AFSFetchStatus block |
|
*/ |
|
static void xdr_decode_AFSFetchStatus(const __be32 **_bp, |
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struct afs_call *call, |
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struct afs_status_cb *scb) |
|
{ |
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const struct afs_xdr_AFSFetchStatus *xdr = (const void *)*_bp; |
|
struct afs_file_status *status = &scb->status; |
|
bool inline_error = (call->operation_ID == afs_FS_InlineBulkStatus); |
|
u64 data_version, size; |
|
u32 type, abort_code; |
|
|
|
abort_code = ntohl(xdr->abort_code); |
|
|
|
if (xdr->if_version != htonl(AFS_FSTATUS_VERSION)) { |
|
if (xdr->if_version == htonl(0) && |
|
abort_code != 0 && |
|
inline_error) { |
|
/* The OpenAFS fileserver has a bug in FS.InlineBulkStatus |
|
* whereby it doesn't set the interface version in the error |
|
* case. |
|
*/ |
|
status->abort_code = abort_code; |
|
scb->have_error = true; |
|
goto advance; |
|
} |
|
|
|
pr_warn("Unknown AFSFetchStatus version %u\n", ntohl(xdr->if_version)); |
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goto bad; |
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} |
|
|
|
if (abort_code != 0 && inline_error) { |
|
status->abort_code = abort_code; |
|
scb->have_error = true; |
|
goto advance; |
|
} |
|
|
|
type = ntohl(xdr->type); |
|
switch (type) { |
|
case AFS_FTYPE_FILE: |
|
case AFS_FTYPE_DIR: |
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case AFS_FTYPE_SYMLINK: |
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status->type = type; |
|
break; |
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default: |
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goto bad; |
|
} |
|
|
|
status->nlink = ntohl(xdr->nlink); |
|
status->author = ntohl(xdr->author); |
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status->owner = ntohl(xdr->owner); |
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status->caller_access = ntohl(xdr->caller_access); /* Ticket dependent */ |
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status->anon_access = ntohl(xdr->anon_access); |
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status->mode = ntohl(xdr->mode) & S_IALLUGO; |
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status->group = ntohl(xdr->group); |
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status->lock_count = ntohl(xdr->lock_count); |
|
|
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status->mtime_client.tv_sec = ntohl(xdr->mtime_client); |
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status->mtime_client.tv_nsec = 0; |
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status->mtime_server.tv_sec = ntohl(xdr->mtime_server); |
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status->mtime_server.tv_nsec = 0; |
|
|
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size = (u64)ntohl(xdr->size_lo); |
|
size |= (u64)ntohl(xdr->size_hi) << 32; |
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status->size = size; |
|
|
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data_version = (u64)ntohl(xdr->data_version_lo); |
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data_version |= (u64)ntohl(xdr->data_version_hi) << 32; |
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status->data_version = data_version; |
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scb->have_status = true; |
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advance: |
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*_bp = (const void *)*_bp + sizeof(*xdr); |
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return; |
|
|
|
bad: |
|
xdr_dump_bad(*_bp); |
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afs_protocol_error(call, afs_eproto_bad_status); |
|
goto advance; |
|
} |
|
|
|
static time64_t xdr_decode_expiry(struct afs_call *call, u32 expiry) |
|
{ |
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return ktime_divns(call->reply_time, NSEC_PER_SEC) + expiry; |
|
} |
|
|
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static void xdr_decode_AFSCallBack(const __be32 **_bp, |
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struct afs_call *call, |
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struct afs_status_cb *scb) |
|
{ |
|
struct afs_callback *cb = &scb->callback; |
|
const __be32 *bp = *_bp; |
|
|
|
bp++; /* version */ |
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cb->expires_at = xdr_decode_expiry(call, ntohl(*bp++)); |
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bp++; /* type */ |
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scb->have_cb = true; |
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*_bp = bp; |
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} |
|
|
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/* |
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* decode an AFSVolSync block |
|
*/ |
|
static void xdr_decode_AFSVolSync(const __be32 **_bp, |
|
struct afs_volsync *volsync) |
|
{ |
|
const __be32 *bp = *_bp; |
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u32 creation; |
|
|
|
creation = ntohl(*bp++); |
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bp++; /* spare2 */ |
|
bp++; /* spare3 */ |
|
bp++; /* spare4 */ |
|
bp++; /* spare5 */ |
|
bp++; /* spare6 */ |
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*_bp = bp; |
|
|
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if (volsync) |
|
volsync->creation = creation; |
|
} |
|
|
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/* |
|
* encode the requested attributes into an AFSStoreStatus block |
|
*/ |
|
static void xdr_encode_AFS_StoreStatus(__be32 **_bp, struct iattr *attr) |
|
{ |
|
__be32 *bp = *_bp; |
|
u32 mask = 0, mtime = 0, owner = 0, group = 0, mode = 0; |
|
|
|
mask = 0; |
|
if (attr->ia_valid & ATTR_MTIME) { |
|
mask |= AFS_SET_MTIME; |
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mtime = attr->ia_mtime.tv_sec; |
|
} |
|
|
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if (attr->ia_valid & ATTR_UID) { |
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mask |= AFS_SET_OWNER; |
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owner = from_kuid(&init_user_ns, attr->ia_uid); |
|
} |
|
|
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if (attr->ia_valid & ATTR_GID) { |
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mask |= AFS_SET_GROUP; |
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group = from_kgid(&init_user_ns, attr->ia_gid); |
|
} |
|
|
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if (attr->ia_valid & ATTR_MODE) { |
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mask |= AFS_SET_MODE; |
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mode = attr->ia_mode & S_IALLUGO; |
|
} |
|
|
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*bp++ = htonl(mask); |
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*bp++ = htonl(mtime); |
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*bp++ = htonl(owner); |
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*bp++ = htonl(group); |
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*bp++ = htonl(mode); |
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*bp++ = 0; /* segment size */ |
|
*_bp = bp; |
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} |
|
|
|
/* |
|
* decode an AFSFetchVolumeStatus block |
|
*/ |
|
static void xdr_decode_AFSFetchVolumeStatus(const __be32 **_bp, |
|
struct afs_volume_status *vs) |
|
{ |
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const __be32 *bp = *_bp; |
|
|
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vs->vid = ntohl(*bp++); |
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vs->parent_id = ntohl(*bp++); |
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vs->online = ntohl(*bp++); |
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vs->in_service = ntohl(*bp++); |
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vs->blessed = ntohl(*bp++); |
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vs->needs_salvage = ntohl(*bp++); |
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vs->type = ntohl(*bp++); |
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vs->min_quota = ntohl(*bp++); |
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vs->max_quota = ntohl(*bp++); |
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vs->blocks_in_use = ntohl(*bp++); |
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vs->part_blocks_avail = ntohl(*bp++); |
|
vs->part_max_blocks = ntohl(*bp++); |
|
vs->vol_copy_date = 0; |
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vs->vol_backup_date = 0; |
|
*_bp = bp; |
|
} |
|
|
|
/* |
|
* deliver reply data to an FS.FetchStatus |
|
*/ |
|
static int afs_deliver_fs_fetch_status(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
struct afs_vnode_param *vp = &op->file[op->fetch_status.which]; |
|
const __be32 *bp; |
|
int ret; |
|
|
|
ret = afs_transfer_reply(call); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* unmarshall the reply once we've received all of it */ |
|
bp = call->buffer; |
|
xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
|
xdr_decode_AFSCallBack(&bp, call, &vp->scb); |
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xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
_leave(" = 0 [done]"); |
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return 0; |
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} |
|
|
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/* |
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* FS.FetchStatus operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSFetchStatus = { |
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.name = "FS.FetchStatus", |
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.op = afs_FS_FetchStatus, |
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.deliver = afs_deliver_fs_fetch_status, |
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.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* fetch the status information for a file |
|
*/ |
|
void afs_fs_fetch_status(struct afs_operation *op) |
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{ |
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struct afs_vnode_param *vp = &op->file[op->fetch_status.which]; |
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struct afs_call *call; |
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__be32 *bp; |
|
|
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_enter(",%x,{%llx:%llu},,", |
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key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
|
|
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call = afs_alloc_flat_call(op->net, &afs_RXFSFetchStatus, |
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16, (21 + 3 + 6) * 4); |
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if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
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bp[0] = htonl(FSFETCHSTATUS); |
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bp[1] = htonl(vp->fid.vid); |
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bp[2] = htonl(vp->fid.vnode); |
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bp[3] = htonl(vp->fid.unique); |
|
|
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trace_afs_make_fs_call(call, &vp->fid); |
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afs_make_op_call(op, call, GFP_NOFS); |
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} |
|
|
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/* |
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* deliver reply data to an FS.FetchData |
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*/ |
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static int afs_deliver_fs_fetch_data(struct afs_call *call) |
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{ |
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struct afs_operation *op = call->op; |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_read *req = op->fetch.req; |
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const __be32 *bp; |
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int ret; |
|
|
|
_enter("{%u,%zu,%zu/%llu}", |
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call->unmarshall, call->iov_len, iov_iter_count(call->iter), |
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req->actual_len); |
|
|
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switch (call->unmarshall) { |
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case 0: |
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req->actual_len = 0; |
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call->unmarshall++; |
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if (call->operation_ID == FSFETCHDATA64) { |
|
afs_extract_to_tmp64(call); |
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} else { |
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call->tmp_u = htonl(0); |
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afs_extract_to_tmp(call); |
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} |
|
fallthrough; |
|
|
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/* Extract the returned data length into |
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* ->actual_len. This may indicate more or less data than was |
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* requested will be returned. |
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*/ |
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case 1: |
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_debug("extract data length"); |
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ret = afs_extract_data(call, true); |
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if (ret < 0) |
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return ret; |
|
|
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req->actual_len = be64_to_cpu(call->tmp64); |
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_debug("DATA length: %llu", req->actual_len); |
|
|
|
if (req->actual_len == 0) |
|
goto no_more_data; |
|
|
|
call->iter = req->iter; |
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call->iov_len = min(req->actual_len, req->len); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* extract the returned data */ |
|
case 2: |
|
_debug("extract data %zu/%llu", |
|
iov_iter_count(call->iter), req->actual_len); |
|
|
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ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
call->iter = &call->def_iter; |
|
if (req->actual_len <= req->len) |
|
goto no_more_data; |
|
|
|
/* Discard any excess data the server gave us */ |
|
afs_extract_discard(call, req->actual_len - req->len); |
|
call->unmarshall = 3; |
|
fallthrough; |
|
|
|
case 3: |
|
_debug("extract discard %zu/%llu", |
|
iov_iter_count(call->iter), req->actual_len - req->len); |
|
|
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
no_more_data: |
|
call->unmarshall = 4; |
|
afs_extract_to_buf(call, (21 + 3 + 6) * 4); |
|
fallthrough; |
|
|
|
/* extract the metadata */ |
|
case 4: |
|
ret = afs_extract_data(call, false); |
|
if (ret < 0) |
|
return ret; |
|
|
|
bp = call->buffer; |
|
xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
|
xdr_decode_AFSCallBack(&bp, call, &vp->scb); |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
req->data_version = vp->scb.status.data_version; |
|
req->file_size = vp->scb.status.size; |
|
|
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
case 5: |
|
break; |
|
} |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.FetchData operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSFetchData = { |
|
.name = "FS.FetchData", |
|
.op = afs_FS_FetchData, |
|
.deliver = afs_deliver_fs_fetch_data, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
static const struct afs_call_type afs_RXFSFetchData64 = { |
|
.name = "FS.FetchData64", |
|
.op = afs_FS_FetchData64, |
|
.deliver = afs_deliver_fs_fetch_data, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* fetch data from a very large file |
|
*/ |
|
static void afs_fs_fetch_data64(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_read *req = op->fetch.req; |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSFetchData64, 32, (21 + 3 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
bp[0] = htonl(FSFETCHDATA64); |
|
bp[1] = htonl(vp->fid.vid); |
|
bp[2] = htonl(vp->fid.vnode); |
|
bp[3] = htonl(vp->fid.unique); |
|
bp[4] = htonl(upper_32_bits(req->pos)); |
|
bp[5] = htonl(lower_32_bits(req->pos)); |
|
bp[6] = 0; |
|
bp[7] = htonl(lower_32_bits(req->len)); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* fetch data from a file |
|
*/ |
|
void afs_fs_fetch_data(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
struct afs_read *req = op->fetch.req; |
|
__be32 *bp; |
|
|
|
if (upper_32_bits(req->pos) || |
|
upper_32_bits(req->len) || |
|
upper_32_bits(req->pos + req->len)) |
|
return afs_fs_fetch_data64(op); |
|
|
|
_enter(""); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSFetchData, 24, (21 + 3 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
req->call_debug_id = call->debug_id; |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
bp[0] = htonl(FSFETCHDATA); |
|
bp[1] = htonl(vp->fid.vid); |
|
bp[2] = htonl(vp->fid.vnode); |
|
bp[3] = htonl(vp->fid.unique); |
|
bp[4] = htonl(lower_32_bits(req->pos)); |
|
bp[5] = htonl(lower_32_bits(req->len)); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* deliver reply data to an FS.CreateFile or an FS.MakeDir |
|
*/ |
|
static int afs_deliver_fs_create_vnode(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_vnode_param *vp = &op->file[1]; |
|
const __be32 *bp; |
|
int ret; |
|
|
|
ret = afs_transfer_reply(call); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* unmarshall the reply once we've received all of it */ |
|
bp = call->buffer; |
|
xdr_decode_AFSFid(&bp, &op->file[1].fid); |
|
xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
|
xdr_decode_AFSFetchStatus(&bp, call, &dvp->scb); |
|
xdr_decode_AFSCallBack(&bp, call, &vp->scb); |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.CreateFile and FS.MakeDir operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSCreateFile = { |
|
.name = "FS.CreateFile", |
|
.op = afs_FS_CreateFile, |
|
.deliver = afs_deliver_fs_create_vnode, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Create a file. |
|
*/ |
|
void afs_fs_create_file(struct afs_operation *op) |
|
{ |
|
const struct qstr *name = &op->dentry->d_name; |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_call *call; |
|
size_t namesz, reqsz, padsz; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
namesz = name->len; |
|
padsz = (4 - (namesz & 3)) & 3; |
|
reqsz = (5 * 4) + namesz + padsz + (6 * 4); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSCreateFile, |
|
reqsz, (3 + 21 + 21 + 3 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSCREATEFILE); |
|
*bp++ = htonl(dvp->fid.vid); |
|
*bp++ = htonl(dvp->fid.vnode); |
|
*bp++ = htonl(dvp->fid.unique); |
|
*bp++ = htonl(namesz); |
|
memcpy(bp, name->name, namesz); |
|
bp = (void *) bp + namesz; |
|
if (padsz > 0) { |
|
memset(bp, 0, padsz); |
|
bp = (void *) bp + padsz; |
|
} |
|
*bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME); |
|
*bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
|
*bp++ = 0; /* owner */ |
|
*bp++ = 0; /* group */ |
|
*bp++ = htonl(op->create.mode & S_IALLUGO); /* unix mode */ |
|
*bp++ = 0; /* segment size */ |
|
|
|
trace_afs_make_fs_call1(call, &dvp->fid, name); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
static const struct afs_call_type afs_RXFSMakeDir = { |
|
.name = "FS.MakeDir", |
|
.op = afs_FS_MakeDir, |
|
.deliver = afs_deliver_fs_create_vnode, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Create a new directory |
|
*/ |
|
void afs_fs_make_dir(struct afs_operation *op) |
|
{ |
|
const struct qstr *name = &op->dentry->d_name; |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_call *call; |
|
size_t namesz, reqsz, padsz; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
namesz = name->len; |
|
padsz = (4 - (namesz & 3)) & 3; |
|
reqsz = (5 * 4) + namesz + padsz + (6 * 4); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSMakeDir, |
|
reqsz, (3 + 21 + 21 + 3 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSMAKEDIR); |
|
*bp++ = htonl(dvp->fid.vid); |
|
*bp++ = htonl(dvp->fid.vnode); |
|
*bp++ = htonl(dvp->fid.unique); |
|
*bp++ = htonl(namesz); |
|
memcpy(bp, name->name, namesz); |
|
bp = (void *) bp + namesz; |
|
if (padsz > 0) { |
|
memset(bp, 0, padsz); |
|
bp = (void *) bp + padsz; |
|
} |
|
*bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME); |
|
*bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
|
*bp++ = 0; /* owner */ |
|
*bp++ = 0; /* group */ |
|
*bp++ = htonl(op->create.mode & S_IALLUGO); /* unix mode */ |
|
*bp++ = 0; /* segment size */ |
|
|
|
trace_afs_make_fs_call1(call, &dvp->fid, name); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* Deliver reply data to any operation that returns status and volume sync. |
|
*/ |
|
static int afs_deliver_fs_file_status_and_vol(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
const __be32 *bp; |
|
int ret; |
|
|
|
ret = afs_transfer_reply(call); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* unmarshall the reply once we've received all of it */ |
|
bp = call->buffer; |
|
xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.RemoveFile operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSRemoveFile = { |
|
.name = "FS.RemoveFile", |
|
.op = afs_FS_RemoveFile, |
|
.deliver = afs_deliver_fs_file_status_and_vol, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Remove a file. |
|
*/ |
|
void afs_fs_remove_file(struct afs_operation *op) |
|
{ |
|
const struct qstr *name = &op->dentry->d_name; |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_call *call; |
|
size_t namesz, reqsz, padsz; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
namesz = name->len; |
|
padsz = (4 - (namesz & 3)) & 3; |
|
reqsz = (5 * 4) + namesz + padsz; |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSRemoveFile, |
|
reqsz, (21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSREMOVEFILE); |
|
*bp++ = htonl(dvp->fid.vid); |
|
*bp++ = htonl(dvp->fid.vnode); |
|
*bp++ = htonl(dvp->fid.unique); |
|
*bp++ = htonl(namesz); |
|
memcpy(bp, name->name, namesz); |
|
bp = (void *) bp + namesz; |
|
if (padsz > 0) { |
|
memset(bp, 0, padsz); |
|
bp = (void *) bp + padsz; |
|
} |
|
|
|
trace_afs_make_fs_call1(call, &dvp->fid, name); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
static const struct afs_call_type afs_RXFSRemoveDir = { |
|
.name = "FS.RemoveDir", |
|
.op = afs_FS_RemoveDir, |
|
.deliver = afs_deliver_fs_file_status_and_vol, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Remove a directory. |
|
*/ |
|
void afs_fs_remove_dir(struct afs_operation *op) |
|
{ |
|
const struct qstr *name = &op->dentry->d_name; |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_call *call; |
|
size_t namesz, reqsz, padsz; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
namesz = name->len; |
|
padsz = (4 - (namesz & 3)) & 3; |
|
reqsz = (5 * 4) + namesz + padsz; |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSRemoveDir, |
|
reqsz, (21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSREMOVEDIR); |
|
*bp++ = htonl(dvp->fid.vid); |
|
*bp++ = htonl(dvp->fid.vnode); |
|
*bp++ = htonl(dvp->fid.unique); |
|
*bp++ = htonl(namesz); |
|
memcpy(bp, name->name, namesz); |
|
bp = (void *) bp + namesz; |
|
if (padsz > 0) { |
|
memset(bp, 0, padsz); |
|
bp = (void *) bp + padsz; |
|
} |
|
|
|
trace_afs_make_fs_call1(call, &dvp->fid, name); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* deliver reply data to an FS.Link |
|
*/ |
|
static int afs_deliver_fs_link(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_vnode_param *vp = &op->file[1]; |
|
const __be32 *bp; |
|
int ret; |
|
|
|
_enter("{%u}", call->unmarshall); |
|
|
|
ret = afs_transfer_reply(call); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* unmarshall the reply once we've received all of it */ |
|
bp = call->buffer; |
|
xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
|
xdr_decode_AFSFetchStatus(&bp, call, &dvp->scb); |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.Link operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSLink = { |
|
.name = "FS.Link", |
|
.op = afs_FS_Link, |
|
.deliver = afs_deliver_fs_link, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* make a hard link |
|
*/ |
|
void afs_fs_link(struct afs_operation *op) |
|
{ |
|
const struct qstr *name = &op->dentry->d_name; |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_vnode_param *vp = &op->file[1]; |
|
struct afs_call *call; |
|
size_t namesz, reqsz, padsz; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
namesz = name->len; |
|
padsz = (4 - (namesz & 3)) & 3; |
|
reqsz = (5 * 4) + namesz + padsz + (3 * 4); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSLink, reqsz, (21 + 21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSLINK); |
|
*bp++ = htonl(dvp->fid.vid); |
|
*bp++ = htonl(dvp->fid.vnode); |
|
*bp++ = htonl(dvp->fid.unique); |
|
*bp++ = htonl(namesz); |
|
memcpy(bp, name->name, namesz); |
|
bp = (void *) bp + namesz; |
|
if (padsz > 0) { |
|
memset(bp, 0, padsz); |
|
bp = (void *) bp + padsz; |
|
} |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
|
|
trace_afs_make_fs_call1(call, &vp->fid, name); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* deliver reply data to an FS.Symlink |
|
*/ |
|
static int afs_deliver_fs_symlink(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_vnode_param *vp = &op->file[1]; |
|
const __be32 *bp; |
|
int ret; |
|
|
|
_enter("{%u}", call->unmarshall); |
|
|
|
ret = afs_transfer_reply(call); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* unmarshall the reply once we've received all of it */ |
|
bp = call->buffer; |
|
xdr_decode_AFSFid(&bp, &vp->fid); |
|
xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
|
xdr_decode_AFSFetchStatus(&bp, call, &dvp->scb); |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.Symlink operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSSymlink = { |
|
.name = "FS.Symlink", |
|
.op = afs_FS_Symlink, |
|
.deliver = afs_deliver_fs_symlink, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* create a symbolic link |
|
*/ |
|
void afs_fs_symlink(struct afs_operation *op) |
|
{ |
|
const struct qstr *name = &op->dentry->d_name; |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_call *call; |
|
size_t namesz, reqsz, padsz, c_namesz, c_padsz; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
namesz = name->len; |
|
padsz = (4 - (namesz & 3)) & 3; |
|
|
|
c_namesz = strlen(op->create.symlink); |
|
c_padsz = (4 - (c_namesz & 3)) & 3; |
|
|
|
reqsz = (6 * 4) + namesz + padsz + c_namesz + c_padsz + (6 * 4); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSSymlink, reqsz, |
|
(3 + 21 + 21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSSYMLINK); |
|
*bp++ = htonl(dvp->fid.vid); |
|
*bp++ = htonl(dvp->fid.vnode); |
|
*bp++ = htonl(dvp->fid.unique); |
|
*bp++ = htonl(namesz); |
|
memcpy(bp, name->name, namesz); |
|
bp = (void *) bp + namesz; |
|
if (padsz > 0) { |
|
memset(bp, 0, padsz); |
|
bp = (void *) bp + padsz; |
|
} |
|
*bp++ = htonl(c_namesz); |
|
memcpy(bp, op->create.symlink, c_namesz); |
|
bp = (void *) bp + c_namesz; |
|
if (c_padsz > 0) { |
|
memset(bp, 0, c_padsz); |
|
bp = (void *) bp + c_padsz; |
|
} |
|
*bp++ = htonl(AFS_SET_MODE | AFS_SET_MTIME); |
|
*bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
|
*bp++ = 0; /* owner */ |
|
*bp++ = 0; /* group */ |
|
*bp++ = htonl(S_IRWXUGO); /* unix mode */ |
|
*bp++ = 0; /* segment size */ |
|
|
|
trace_afs_make_fs_call1(call, &dvp->fid, name); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* deliver reply data to an FS.Rename |
|
*/ |
|
static int afs_deliver_fs_rename(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
struct afs_vnode_param *orig_dvp = &op->file[0]; |
|
struct afs_vnode_param *new_dvp = &op->file[1]; |
|
const __be32 *bp; |
|
int ret; |
|
|
|
ret = afs_transfer_reply(call); |
|
if (ret < 0) |
|
return ret; |
|
|
|
bp = call->buffer; |
|
/* If the two dirs are the same, we have two copies of the same status |
|
* report, so we just decode it twice. |
|
*/ |
|
xdr_decode_AFSFetchStatus(&bp, call, &orig_dvp->scb); |
|
xdr_decode_AFSFetchStatus(&bp, call, &new_dvp->scb); |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.Rename operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSRename = { |
|
.name = "FS.Rename", |
|
.op = afs_FS_Rename, |
|
.deliver = afs_deliver_fs_rename, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Rename/move a file or directory. |
|
*/ |
|
void afs_fs_rename(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *orig_dvp = &op->file[0]; |
|
struct afs_vnode_param *new_dvp = &op->file[1]; |
|
const struct qstr *orig_name = &op->dentry->d_name; |
|
const struct qstr *new_name = &op->dentry_2->d_name; |
|
struct afs_call *call; |
|
size_t reqsz, o_namesz, o_padsz, n_namesz, n_padsz; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
o_namesz = orig_name->len; |
|
o_padsz = (4 - (o_namesz & 3)) & 3; |
|
|
|
n_namesz = new_name->len; |
|
n_padsz = (4 - (n_namesz & 3)) & 3; |
|
|
|
reqsz = (4 * 4) + |
|
4 + o_namesz + o_padsz + |
|
(3 * 4) + |
|
4 + n_namesz + n_padsz; |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSRename, reqsz, (21 + 21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSRENAME); |
|
*bp++ = htonl(orig_dvp->fid.vid); |
|
*bp++ = htonl(orig_dvp->fid.vnode); |
|
*bp++ = htonl(orig_dvp->fid.unique); |
|
*bp++ = htonl(o_namesz); |
|
memcpy(bp, orig_name->name, o_namesz); |
|
bp = (void *) bp + o_namesz; |
|
if (o_padsz > 0) { |
|
memset(bp, 0, o_padsz); |
|
bp = (void *) bp + o_padsz; |
|
} |
|
|
|
*bp++ = htonl(new_dvp->fid.vid); |
|
*bp++ = htonl(new_dvp->fid.vnode); |
|
*bp++ = htonl(new_dvp->fid.unique); |
|
*bp++ = htonl(n_namesz); |
|
memcpy(bp, new_name->name, n_namesz); |
|
bp = (void *) bp + n_namesz; |
|
if (n_padsz > 0) { |
|
memset(bp, 0, n_padsz); |
|
bp = (void *) bp + n_padsz; |
|
} |
|
|
|
trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* Deliver reply data to FS.StoreData or FS.StoreStatus |
|
*/ |
|
static int afs_deliver_fs_store_data(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
const __be32 *bp; |
|
int ret; |
|
|
|
_enter(""); |
|
|
|
ret = afs_transfer_reply(call); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* unmarshall the reply once we've received all of it */ |
|
bp = call->buffer; |
|
xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.StoreData operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSStoreData = { |
|
.name = "FS.StoreData", |
|
.op = afs_FS_StoreData, |
|
.deliver = afs_deliver_fs_store_data, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
static const struct afs_call_type afs_RXFSStoreData64 = { |
|
.name = "FS.StoreData64", |
|
.op = afs_FS_StoreData64, |
|
.deliver = afs_deliver_fs_store_data, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* store a set of pages to a very large file |
|
*/ |
|
static void afs_fs_store_data64(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(",%x,{%llx:%llu},,", |
|
key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData64, |
|
(4 + 6 + 3 * 2) * 4, |
|
(21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
call->write_iter = op->store.write_iter; |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSSTOREDATA64); |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
|
|
*bp++ = htonl(AFS_SET_MTIME); /* mask */ |
|
*bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
|
*bp++ = 0; /* owner */ |
|
*bp++ = 0; /* group */ |
|
*bp++ = 0; /* unix mode */ |
|
*bp++ = 0; /* segment size */ |
|
|
|
*bp++ = htonl(upper_32_bits(op->store.pos)); |
|
*bp++ = htonl(lower_32_bits(op->store.pos)); |
|
*bp++ = htonl(upper_32_bits(op->store.size)); |
|
*bp++ = htonl(lower_32_bits(op->store.size)); |
|
*bp++ = htonl(upper_32_bits(op->store.i_size)); |
|
*bp++ = htonl(lower_32_bits(op->store.i_size)); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* Write data to a file on the server. |
|
*/ |
|
void afs_fs_store_data(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(",%x,{%llx:%llu},,", |
|
key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
|
|
|
_debug("size %llx, at %llx, i_size %llx", |
|
(unsigned long long)op->store.size, |
|
(unsigned long long)op->store.pos, |
|
(unsigned long long)op->store.i_size); |
|
|
|
if (upper_32_bits(op->store.pos) || |
|
upper_32_bits(op->store.size) || |
|
upper_32_bits(op->store.i_size)) |
|
return afs_fs_store_data64(op); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData, |
|
(4 + 6 + 3) * 4, |
|
(21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
call->write_iter = op->store.write_iter; |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSSTOREDATA); |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
|
|
*bp++ = htonl(AFS_SET_MTIME); /* mask */ |
|
*bp++ = htonl(op->mtime.tv_sec); /* mtime */ |
|
*bp++ = 0; /* owner */ |
|
*bp++ = 0; /* group */ |
|
*bp++ = 0; /* unix mode */ |
|
*bp++ = 0; /* segment size */ |
|
|
|
*bp++ = htonl(lower_32_bits(op->store.pos)); |
|
*bp++ = htonl(lower_32_bits(op->store.size)); |
|
*bp++ = htonl(lower_32_bits(op->store.i_size)); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* FS.StoreStatus operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSStoreStatus = { |
|
.name = "FS.StoreStatus", |
|
.op = afs_FS_StoreStatus, |
|
.deliver = afs_deliver_fs_store_data, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
static const struct afs_call_type afs_RXFSStoreData_as_Status = { |
|
.name = "FS.StoreData", |
|
.op = afs_FS_StoreData, |
|
.deliver = afs_deliver_fs_store_data, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
static const struct afs_call_type afs_RXFSStoreData64_as_Status = { |
|
.name = "FS.StoreData64", |
|
.op = afs_FS_StoreData64, |
|
.deliver = afs_deliver_fs_store_data, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* set the attributes on a very large file, using FS.StoreData rather than |
|
* FS.StoreStatus so as to alter the file size also |
|
*/ |
|
static void afs_fs_setattr_size64(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
struct iattr *attr = op->setattr.attr; |
|
__be32 *bp; |
|
|
|
_enter(",%x,{%llx:%llu},,", |
|
key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
|
|
|
ASSERT(attr->ia_valid & ATTR_SIZE); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData64_as_Status, |
|
(4 + 6 + 3 * 2) * 4, |
|
(21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSSTOREDATA64); |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
|
|
xdr_encode_AFS_StoreStatus(&bp, attr); |
|
|
|
*bp++ = htonl(upper_32_bits(attr->ia_size)); /* position of start of write */ |
|
*bp++ = htonl(lower_32_bits(attr->ia_size)); |
|
*bp++ = 0; /* size of write */ |
|
*bp++ = 0; |
|
*bp++ = htonl(upper_32_bits(attr->ia_size)); /* new file length */ |
|
*bp++ = htonl(lower_32_bits(attr->ia_size)); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* set the attributes on a file, using FS.StoreData rather than FS.StoreStatus |
|
* so as to alter the file size also |
|
*/ |
|
static void afs_fs_setattr_size(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
struct iattr *attr = op->setattr.attr; |
|
__be32 *bp; |
|
|
|
_enter(",%x,{%llx:%llu},,", |
|
key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
|
|
|
ASSERT(attr->ia_valid & ATTR_SIZE); |
|
if (upper_32_bits(attr->ia_size)) |
|
return afs_fs_setattr_size64(op); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData_as_Status, |
|
(4 + 6 + 3) * 4, |
|
(21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSSTOREDATA); |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
|
|
xdr_encode_AFS_StoreStatus(&bp, attr); |
|
|
|
*bp++ = htonl(attr->ia_size); /* position of start of write */ |
|
*bp++ = 0; /* size of write */ |
|
*bp++ = htonl(attr->ia_size); /* new file length */ |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* set the attributes on a file, using FS.StoreData if there's a change in file |
|
* size, and FS.StoreStatus otherwise |
|
*/ |
|
void afs_fs_setattr(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
struct iattr *attr = op->setattr.attr; |
|
__be32 *bp; |
|
|
|
if (attr->ia_valid & ATTR_SIZE) |
|
return afs_fs_setattr_size(op); |
|
|
|
_enter(",%x,{%llx:%llu},,", |
|
key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSStoreStatus, |
|
(4 + 6) * 4, |
|
(21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSSTORESTATUS); |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
|
|
xdr_encode_AFS_StoreStatus(&bp, op->setattr.attr); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* deliver reply data to an FS.GetVolumeStatus |
|
*/ |
|
static int afs_deliver_fs_get_volume_status(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
const __be32 *bp; |
|
char *p; |
|
u32 size; |
|
int ret; |
|
|
|
_enter("{%u}", call->unmarshall); |
|
|
|
switch (call->unmarshall) { |
|
case 0: |
|
call->unmarshall++; |
|
afs_extract_to_buf(call, 12 * 4); |
|
fallthrough; |
|
|
|
/* extract the returned status record */ |
|
case 1: |
|
_debug("extract status"); |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
bp = call->buffer; |
|
xdr_decode_AFSFetchVolumeStatus(&bp, &op->volstatus.vs); |
|
call->unmarshall++; |
|
afs_extract_to_tmp(call); |
|
fallthrough; |
|
|
|
/* extract the volume name length */ |
|
case 2: |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
call->count = ntohl(call->tmp); |
|
_debug("volname length: %u", call->count); |
|
if (call->count >= AFSNAMEMAX) |
|
return afs_protocol_error(call, afs_eproto_volname_len); |
|
size = (call->count + 3) & ~3; /* It's padded */ |
|
afs_extract_to_buf(call, size); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* extract the volume name */ |
|
case 3: |
|
_debug("extract volname"); |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
p = call->buffer; |
|
p[call->count] = 0; |
|
_debug("volname '%s'", p); |
|
afs_extract_to_tmp(call); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* extract the offline message length */ |
|
case 4: |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
call->count = ntohl(call->tmp); |
|
_debug("offline msg length: %u", call->count); |
|
if (call->count >= AFSNAMEMAX) |
|
return afs_protocol_error(call, afs_eproto_offline_msg_len); |
|
size = (call->count + 3) & ~3; /* It's padded */ |
|
afs_extract_to_buf(call, size); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* extract the offline message */ |
|
case 5: |
|
_debug("extract offline"); |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
p = call->buffer; |
|
p[call->count] = 0; |
|
_debug("offline '%s'", p); |
|
|
|
afs_extract_to_tmp(call); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* extract the message of the day length */ |
|
case 6: |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
call->count = ntohl(call->tmp); |
|
_debug("motd length: %u", call->count); |
|
if (call->count >= AFSNAMEMAX) |
|
return afs_protocol_error(call, afs_eproto_motd_len); |
|
size = (call->count + 3) & ~3; /* It's padded */ |
|
afs_extract_to_buf(call, size); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* extract the message of the day */ |
|
case 7: |
|
_debug("extract motd"); |
|
ret = afs_extract_data(call, false); |
|
if (ret < 0) |
|
return ret; |
|
|
|
p = call->buffer; |
|
p[call->count] = 0; |
|
_debug("motd '%s'", p); |
|
|
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
case 8: |
|
break; |
|
} |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.GetVolumeStatus operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSGetVolumeStatus = { |
|
.name = "FS.GetVolumeStatus", |
|
.op = afs_FS_GetVolumeStatus, |
|
.deliver = afs_deliver_fs_get_volume_status, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* fetch the status of a volume |
|
*/ |
|
void afs_fs_get_volume_status(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSGetVolumeStatus, 2 * 4, |
|
max(12 * 4, AFSOPAQUEMAX + 1)); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
bp[0] = htonl(FSGETVOLUMESTATUS); |
|
bp[1] = htonl(vp->fid.vid); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* deliver reply data to an FS.SetLock, FS.ExtendLock or FS.ReleaseLock |
|
*/ |
|
static int afs_deliver_fs_xxxx_lock(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
const __be32 *bp; |
|
int ret; |
|
|
|
_enter("{%u}", call->unmarshall); |
|
|
|
ret = afs_transfer_reply(call); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* unmarshall the reply once we've received all of it */ |
|
bp = call->buffer; |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.SetLock operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSSetLock = { |
|
.name = "FS.SetLock", |
|
.op = afs_FS_SetLock, |
|
.deliver = afs_deliver_fs_xxxx_lock, |
|
.done = afs_lock_op_done, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* FS.ExtendLock operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSExtendLock = { |
|
.name = "FS.ExtendLock", |
|
.op = afs_FS_ExtendLock, |
|
.deliver = afs_deliver_fs_xxxx_lock, |
|
.done = afs_lock_op_done, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* FS.ReleaseLock operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSReleaseLock = { |
|
.name = "FS.ReleaseLock", |
|
.op = afs_FS_ReleaseLock, |
|
.deliver = afs_deliver_fs_xxxx_lock, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Set a lock on a file |
|
*/ |
|
void afs_fs_set_lock(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSSetLock, 5 * 4, 6 * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSSETLOCK); |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
*bp++ = htonl(op->lock.type); |
|
|
|
trace_afs_make_fs_calli(call, &vp->fid, op->lock.type); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* extend a lock on a file |
|
*/ |
|
void afs_fs_extend_lock(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSExtendLock, 4 * 4, 6 * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSEXTENDLOCK); |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* release a lock on a file |
|
*/ |
|
void afs_fs_release_lock(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSReleaseLock, 4 * 4, 6 * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSRELEASELOCK); |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* Deliver reply data to an FS.GiveUpAllCallBacks operation. |
|
*/ |
|
static int afs_deliver_fs_give_up_all_callbacks(struct afs_call *call) |
|
{ |
|
return afs_transfer_reply(call); |
|
} |
|
|
|
/* |
|
* FS.GiveUpAllCallBacks operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSGiveUpAllCallBacks = { |
|
.name = "FS.GiveUpAllCallBacks", |
|
.op = afs_FS_GiveUpAllCallBacks, |
|
.deliver = afs_deliver_fs_give_up_all_callbacks, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Flush all the callbacks we have on a server. |
|
*/ |
|
int afs_fs_give_up_all_callbacks(struct afs_net *net, |
|
struct afs_server *server, |
|
struct afs_addr_cursor *ac, |
|
struct key *key) |
|
{ |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
call = afs_alloc_flat_call(net, &afs_RXFSGiveUpAllCallBacks, 1 * 4, 0); |
|
if (!call) |
|
return -ENOMEM; |
|
|
|
call->key = key; |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSGIVEUPALLCALLBACKS); |
|
|
|
call->server = afs_use_server(server, afs_server_trace_give_up_cb); |
|
afs_make_call(ac, call, GFP_NOFS); |
|
return afs_wait_for_call_to_complete(call, ac); |
|
} |
|
|
|
/* |
|
* Deliver reply data to an FS.GetCapabilities operation. |
|
*/ |
|
static int afs_deliver_fs_get_capabilities(struct afs_call *call) |
|
{ |
|
u32 count; |
|
int ret; |
|
|
|
_enter("{%u,%zu}", call->unmarshall, iov_iter_count(call->iter)); |
|
|
|
switch (call->unmarshall) { |
|
case 0: |
|
afs_extract_to_tmp(call); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* Extract the capabilities word count */ |
|
case 1: |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
count = ntohl(call->tmp); |
|
|
|
call->count = count; |
|
call->count2 = count; |
|
afs_extract_discard(call, count * sizeof(__be32)); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* Extract capabilities words */ |
|
case 2: |
|
ret = afs_extract_data(call, false); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* TODO: Examine capabilities */ |
|
|
|
call->unmarshall++; |
|
break; |
|
} |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.GetCapabilities operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSGetCapabilities = { |
|
.name = "FS.GetCapabilities", |
|
.op = afs_FS_GetCapabilities, |
|
.deliver = afs_deliver_fs_get_capabilities, |
|
.done = afs_fileserver_probe_result, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Probe a fileserver for the capabilities that it supports. This RPC can |
|
* reply with up to 196 words. The operation is asynchronous and if we managed |
|
* to allocate a call, true is returned the result is delivered through the |
|
* ->done() - otherwise we return false to indicate we didn't even try. |
|
*/ |
|
bool afs_fs_get_capabilities(struct afs_net *net, struct afs_server *server, |
|
struct afs_addr_cursor *ac, struct key *key) |
|
{ |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(""); |
|
|
|
call = afs_alloc_flat_call(net, &afs_RXFSGetCapabilities, 1 * 4, 16 * 4); |
|
if (!call) |
|
return false; |
|
|
|
call->key = key; |
|
call->server = afs_use_server(server, afs_server_trace_get_caps); |
|
call->upgrade = true; |
|
call->async = true; |
|
call->max_lifespan = AFS_PROBE_MAX_LIFESPAN; |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSGETCAPABILITIES); |
|
|
|
trace_afs_make_fs_call(call, NULL); |
|
afs_make_call(ac, call, GFP_NOFS); |
|
afs_put_call(call); |
|
return true; |
|
} |
|
|
|
/* |
|
* Deliver reply data to an FS.InlineBulkStatus call |
|
*/ |
|
static int afs_deliver_fs_inline_bulk_status(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
struct afs_status_cb *scb; |
|
const __be32 *bp; |
|
u32 tmp; |
|
int ret; |
|
|
|
_enter("{%u}", call->unmarshall); |
|
|
|
switch (call->unmarshall) { |
|
case 0: |
|
afs_extract_to_tmp(call); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* Extract the file status count and array in two steps */ |
|
case 1: |
|
_debug("extract status count"); |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
tmp = ntohl(call->tmp); |
|
_debug("status count: %u/%u", tmp, op->nr_files); |
|
if (tmp != op->nr_files) |
|
return afs_protocol_error(call, afs_eproto_ibulkst_count); |
|
|
|
call->count = 0; |
|
call->unmarshall++; |
|
more_counts: |
|
afs_extract_to_buf(call, 21 * sizeof(__be32)); |
|
fallthrough; |
|
|
|
case 2: |
|
_debug("extract status array %u", call->count); |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
switch (call->count) { |
|
case 0: |
|
scb = &op->file[0].scb; |
|
break; |
|
case 1: |
|
scb = &op->file[1].scb; |
|
break; |
|
default: |
|
scb = &op->more_files[call->count - 2].scb; |
|
break; |
|
} |
|
|
|
bp = call->buffer; |
|
xdr_decode_AFSFetchStatus(&bp, call, scb); |
|
|
|
call->count++; |
|
if (call->count < op->nr_files) |
|
goto more_counts; |
|
|
|
call->count = 0; |
|
call->unmarshall++; |
|
afs_extract_to_tmp(call); |
|
fallthrough; |
|
|
|
/* Extract the callback count and array in two steps */ |
|
case 3: |
|
_debug("extract CB count"); |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
tmp = ntohl(call->tmp); |
|
_debug("CB count: %u", tmp); |
|
if (tmp != op->nr_files) |
|
return afs_protocol_error(call, afs_eproto_ibulkst_cb_count); |
|
call->count = 0; |
|
call->unmarshall++; |
|
more_cbs: |
|
afs_extract_to_buf(call, 3 * sizeof(__be32)); |
|
fallthrough; |
|
|
|
case 4: |
|
_debug("extract CB array"); |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
_debug("unmarshall CB array"); |
|
switch (call->count) { |
|
case 0: |
|
scb = &op->file[0].scb; |
|
break; |
|
case 1: |
|
scb = &op->file[1].scb; |
|
break; |
|
default: |
|
scb = &op->more_files[call->count - 2].scb; |
|
break; |
|
} |
|
|
|
bp = call->buffer; |
|
xdr_decode_AFSCallBack(&bp, call, scb); |
|
call->count++; |
|
if (call->count < op->nr_files) |
|
goto more_cbs; |
|
|
|
afs_extract_to_buf(call, 6 * sizeof(__be32)); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
case 5: |
|
ret = afs_extract_data(call, false); |
|
if (ret < 0) |
|
return ret; |
|
|
|
bp = call->buffer; |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
case 6: |
|
break; |
|
} |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
static void afs_done_fs_inline_bulk_status(struct afs_call *call) |
|
{ |
|
if (call->error == -ECONNABORTED && |
|
call->abort_code == RX_INVALID_OPERATION) { |
|
set_bit(AFS_SERVER_FL_NO_IBULK, &call->server->flags); |
|
if (call->op) |
|
set_bit(AFS_VOLUME_MAYBE_NO_IBULK, &call->op->volume->flags); |
|
} |
|
} |
|
|
|
/* |
|
* FS.InlineBulkStatus operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSInlineBulkStatus = { |
|
.name = "FS.InlineBulkStatus", |
|
.op = afs_FS_InlineBulkStatus, |
|
.deliver = afs_deliver_fs_inline_bulk_status, |
|
.done = afs_done_fs_inline_bulk_status, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Fetch the status information for up to 50 files |
|
*/ |
|
void afs_fs_inline_bulk_status(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *dvp = &op->file[0]; |
|
struct afs_vnode_param *vp = &op->file[1]; |
|
struct afs_call *call; |
|
__be32 *bp; |
|
int i; |
|
|
|
if (test_bit(AFS_SERVER_FL_NO_IBULK, &op->server->flags)) { |
|
op->error = -ENOTSUPP; |
|
return; |
|
} |
|
|
|
_enter(",%x,{%llx:%llu},%u", |
|
key_serial(op->key), vp->fid.vid, vp->fid.vnode, op->nr_files); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSInlineBulkStatus, |
|
(2 + op->nr_files * 3) * 4, |
|
21 * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
*bp++ = htonl(FSINLINEBULKSTATUS); |
|
*bp++ = htonl(op->nr_files); |
|
*bp++ = htonl(dvp->fid.vid); |
|
*bp++ = htonl(dvp->fid.vnode); |
|
*bp++ = htonl(dvp->fid.unique); |
|
*bp++ = htonl(vp->fid.vid); |
|
*bp++ = htonl(vp->fid.vnode); |
|
*bp++ = htonl(vp->fid.unique); |
|
for (i = 0; i < op->nr_files - 2; i++) { |
|
*bp++ = htonl(op->more_files[i].fid.vid); |
|
*bp++ = htonl(op->more_files[i].fid.vnode); |
|
*bp++ = htonl(op->more_files[i].fid.unique); |
|
} |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_NOFS); |
|
} |
|
|
|
/* |
|
* deliver reply data to an FS.FetchACL |
|
*/ |
|
static int afs_deliver_fs_fetch_acl(struct afs_call *call) |
|
{ |
|
struct afs_operation *op = call->op; |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_acl *acl; |
|
const __be32 *bp; |
|
unsigned int size; |
|
int ret; |
|
|
|
_enter("{%u}", call->unmarshall); |
|
|
|
switch (call->unmarshall) { |
|
case 0: |
|
afs_extract_to_tmp(call); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* extract the returned data length */ |
|
case 1: |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
size = call->count2 = ntohl(call->tmp); |
|
size = round_up(size, 4); |
|
|
|
acl = kmalloc(struct_size(acl, data, size), GFP_KERNEL); |
|
if (!acl) |
|
return -ENOMEM; |
|
op->acl = acl; |
|
acl->size = call->count2; |
|
afs_extract_begin(call, acl->data, size); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* extract the returned data */ |
|
case 2: |
|
ret = afs_extract_data(call, true); |
|
if (ret < 0) |
|
return ret; |
|
|
|
afs_extract_to_buf(call, (21 + 6) * 4); |
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
/* extract the metadata */ |
|
case 3: |
|
ret = afs_extract_data(call, false); |
|
if (ret < 0) |
|
return ret; |
|
|
|
bp = call->buffer; |
|
xdr_decode_AFSFetchStatus(&bp, call, &vp->scb); |
|
xdr_decode_AFSVolSync(&bp, &op->volsync); |
|
|
|
call->unmarshall++; |
|
fallthrough; |
|
|
|
case 4: |
|
break; |
|
} |
|
|
|
_leave(" = 0 [done]"); |
|
return 0; |
|
} |
|
|
|
/* |
|
* FS.FetchACL operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSFetchACL = { |
|
.name = "FS.FetchACL", |
|
.op = afs_FS_FetchACL, |
|
.deliver = afs_deliver_fs_fetch_acl, |
|
}; |
|
|
|
/* |
|
* Fetch the ACL for a file. |
|
*/ |
|
void afs_fs_fetch_acl(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
__be32 *bp; |
|
|
|
_enter(",%x,{%llx:%llu},,", |
|
key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
|
|
|
call = afs_alloc_flat_call(op->net, &afs_RXFSFetchACL, 16, (21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
bp[0] = htonl(FSFETCHACL); |
|
bp[1] = htonl(vp->fid.vid); |
|
bp[2] = htonl(vp->fid.vnode); |
|
bp[3] = htonl(vp->fid.unique); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_KERNEL); |
|
} |
|
|
|
/* |
|
* FS.StoreACL operation type |
|
*/ |
|
static const struct afs_call_type afs_RXFSStoreACL = { |
|
.name = "FS.StoreACL", |
|
.op = afs_FS_StoreACL, |
|
.deliver = afs_deliver_fs_file_status_and_vol, |
|
.destructor = afs_flat_call_destructor, |
|
}; |
|
|
|
/* |
|
* Fetch the ACL for a file. |
|
*/ |
|
void afs_fs_store_acl(struct afs_operation *op) |
|
{ |
|
struct afs_vnode_param *vp = &op->file[0]; |
|
struct afs_call *call; |
|
const struct afs_acl *acl = op->acl; |
|
size_t size; |
|
__be32 *bp; |
|
|
|
_enter(",%x,{%llx:%llu},,", |
|
key_serial(op->key), vp->fid.vid, vp->fid.vnode); |
|
|
|
size = round_up(acl->size, 4); |
|
call = afs_alloc_flat_call(op->net, &afs_RXFSStoreACL, |
|
5 * 4 + size, (21 + 6) * 4); |
|
if (!call) |
|
return afs_op_nomem(op); |
|
|
|
/* marshall the parameters */ |
|
bp = call->request; |
|
bp[0] = htonl(FSSTOREACL); |
|
bp[1] = htonl(vp->fid.vid); |
|
bp[2] = htonl(vp->fid.vnode); |
|
bp[3] = htonl(vp->fid.unique); |
|
bp[4] = htonl(acl->size); |
|
memcpy(&bp[5], acl->data, acl->size); |
|
if (acl->size != size) |
|
memset((void *)&bp[5] + acl->size, 0, size - acl->size); |
|
|
|
trace_afs_make_fs_call(call, &vp->fid); |
|
afs_make_op_call(op, call, GFP_KERNEL); |
|
}
|
|
|