[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/fs/afs/fsclient.c b/src/kernel/linux/v4.14/fs/afs/fsclient.c
new file mode 100644
index 0000000..19f76ae
--- /dev/null
+++ b/src/kernel/linux/v4.14/fs/afs/fsclient.c
@@ -0,0 +1,1868 @@
+/* AFS File Server client stubs
+ *
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/circ_buf.h>
+#include "internal.h"
+#include "afs_fs.h"
+
+/*
+ * We need somewhere to discard into in case the server helpfully returns more
+ * than we asked for in FS.FetchData{,64}.
+ */
+static u8 afs_discard_buffer[64];
+
+/*
+ * 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++);
+ *_bp = bp;
+}
+
+/*
+ * decode an AFSFetchStatus block
+ */
+static void xdr_decode_AFSFetchStatus(const __be32 **_bp,
+ struct afs_file_status *status,
+ struct afs_vnode *vnode,
+ afs_dataversion_t *store_version)
+{
+ afs_dataversion_t expected_version;
+ const __be32 *bp = *_bp;
+ umode_t mode;
+ u64 data_version, size;
+ u32 changed = 0; /* becomes non-zero if ctime-type changes seen */
+ kuid_t owner;
+ kgid_t group;
+
+#define EXTRACT(DST) \
+ do { \
+ u32 x = ntohl(*bp++); \
+ changed |= DST - x; \
+ DST = x; \
+ } while (0)
+
+ status->if_version = ntohl(*bp++);
+ EXTRACT(status->type);
+ EXTRACT(status->nlink);
+ size = ntohl(*bp++);
+ data_version = ntohl(*bp++);
+ EXTRACT(status->author);
+ owner = make_kuid(&init_user_ns, ntohl(*bp++));
+ changed |= !uid_eq(owner, status->owner);
+ status->owner = owner;
+ EXTRACT(status->caller_access); /* call ticket dependent */
+ EXTRACT(status->anon_access);
+ EXTRACT(status->mode);
+ EXTRACT(status->parent.vnode);
+ EXTRACT(status->parent.unique);
+ bp++; /* seg size */
+ status->mtime_client = ntohl(*bp++);
+ status->mtime_server = ntohl(*bp++);
+ group = make_kgid(&init_user_ns, ntohl(*bp++));
+ changed |= !gid_eq(group, status->group);
+ status->group = group;
+ bp++; /* sync counter */
+ data_version |= (u64) ntohl(*bp++) << 32;
+ EXTRACT(status->lock_count);
+ size |= (u64) ntohl(*bp++) << 32;
+ bp++; /* spare 4 */
+ *_bp = bp;
+
+ if (size != status->size) {
+ status->size = size;
+ changed |= true;
+ }
+ status->mode &= S_IALLUGO;
+
+ _debug("vnode time %lx, %lx",
+ status->mtime_client, status->mtime_server);
+
+ if (vnode) {
+ status->parent.vid = vnode->fid.vid;
+ if (changed && !test_bit(AFS_VNODE_UNSET, &vnode->flags)) {
+ _debug("vnode changed");
+ i_size_write(&vnode->vfs_inode, size);
+ vnode->vfs_inode.i_uid = status->owner;
+ vnode->vfs_inode.i_gid = status->group;
+ vnode->vfs_inode.i_generation = vnode->fid.unique;
+ set_nlink(&vnode->vfs_inode, status->nlink);
+
+ mode = vnode->vfs_inode.i_mode;
+ mode &= ~S_IALLUGO;
+ mode |= status->mode;
+ barrier();
+ vnode->vfs_inode.i_mode = mode;
+ }
+
+ vnode->vfs_inode.i_ctime.tv_sec = status->mtime_client;
+ vnode->vfs_inode.i_mtime = vnode->vfs_inode.i_ctime;
+ vnode->vfs_inode.i_atime = vnode->vfs_inode.i_ctime;
+ vnode->vfs_inode.i_version = data_version;
+ }
+
+ expected_version = status->data_version;
+ if (store_version)
+ expected_version = *store_version;
+
+ if (expected_version != data_version) {
+ status->data_version = data_version;
+ if (vnode && !test_bit(AFS_VNODE_UNSET, &vnode->flags)) {
+ _debug("vnode modified %llx on {%x:%u}",
+ (unsigned long long) data_version,
+ vnode->fid.vid, vnode->fid.vnode);
+ set_bit(AFS_VNODE_MODIFIED, &vnode->flags);
+ set_bit(AFS_VNODE_ZAP_DATA, &vnode->flags);
+ }
+ } else if (store_version) {
+ status->data_version = data_version;
+ }
+}
+
+/*
+ * decode an AFSCallBack block
+ */
+static void xdr_decode_AFSCallBack(const __be32 **_bp, struct afs_vnode *vnode)
+{
+ const __be32 *bp = *_bp;
+
+ vnode->cb_version = ntohl(*bp++);
+ vnode->cb_expiry = ntohl(*bp++);
+ vnode->cb_type = ntohl(*bp++);
+ vnode->cb_expires = vnode->cb_expiry + ktime_get_real_seconds();
+ *_bp = bp;
+}
+
+static void xdr_decode_AFSCallBack_raw(const __be32 **_bp,
+ struct afs_callback *cb)
+{
+ const __be32 *bp = *_bp;
+
+ cb->version = ntohl(*bp++);
+ cb->expiry = ntohl(*bp++);
+ cb->type = ntohl(*bp++);
+ *_bp = bp;
+}
+
+/*
+ * decode an AFSVolSync block
+ */
+static void xdr_decode_AFSVolSync(const __be32 **_bp,
+ struct afs_volsync *volsync)
+{
+ const __be32 *bp = *_bp;
+
+ volsync->creation = ntohl(*bp++);
+ bp++; /* spare2 */
+ bp++; /* spare3 */
+ bp++; /* spare4 */
+ bp++; /* spare5 */
+ bp++; /* spare6 */
+ *_bp = bp;
+}
+
+/*
+ * 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;
+ mtime = attr->ia_mtime.tv_sec;
+ }
+
+ if (attr->ia_valid & ATTR_UID) {
+ mask |= AFS_SET_OWNER;
+ owner = from_kuid(&init_user_ns, attr->ia_uid);
+ }
+
+ if (attr->ia_valid & ATTR_GID) {
+ mask |= AFS_SET_GROUP;
+ group = from_kgid(&init_user_ns, attr->ia_gid);
+ }
+
+ if (attr->ia_valid & ATTR_MODE) {
+ mask |= AFS_SET_MODE;
+ mode = attr->ia_mode & S_IALLUGO;
+ }
+
+ *bp++ = htonl(mask);
+ *bp++ = htonl(mtime);
+ *bp++ = htonl(owner);
+ *bp++ = htonl(group);
+ *bp++ = htonl(mode);
+ *bp++ = 0; /* segment size */
+ *_bp = bp;
+}
+
+/*
+ * decode an AFSFetchVolumeStatus block
+ */
+static void xdr_decode_AFSFetchVolumeStatus(const __be32 **_bp,
+ struct afs_volume_status *vs)
+{
+ const __be32 *bp = *_bp;
+
+ vs->vid = ntohl(*bp++);
+ vs->parent_id = ntohl(*bp++);
+ vs->online = ntohl(*bp++);
+ vs->in_service = ntohl(*bp++);
+ vs->blessed = ntohl(*bp++);
+ vs->needs_salvage = ntohl(*bp++);
+ vs->type = ntohl(*bp++);
+ vs->min_quota = ntohl(*bp++);
+ vs->max_quota = ntohl(*bp++);
+ vs->blocks_in_use = ntohl(*bp++);
+ vs->part_blocks_avail = ntohl(*bp++);
+ vs->part_max_blocks = ntohl(*bp++);
+ *_bp = bp;
+}
+
+/*
+ * deliver reply data to an FS.FetchStatus
+ */
+static int afs_deliver_fs_fetch_status(struct afs_call *call)
+{
+ struct afs_vnode *vnode = call->reply;
+ 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, &vnode->status, vnode, NULL);
+ xdr_decode_AFSCallBack(&bp, vnode);
+ if (call->reply2)
+ xdr_decode_AFSVolSync(&bp, call->reply2);
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.FetchStatus operation type
+ */
+static const struct afs_call_type afs_RXFSFetchStatus = {
+ .name = "FS.FetchStatus",
+ .deliver = afs_deliver_fs_fetch_status,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * fetch the status information for a file
+ */
+int afs_fs_fetch_file_status(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ struct afs_volsync *volsync,
+ bool async)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter(",%x,{%x:%u},,",
+ key_serial(key), vnode->fid.vid, vnode->fid.vnode);
+
+ call = afs_alloc_flat_call(&afs_RXFSFetchStatus, 16, (21 + 3 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = volsync;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ bp[0] = htonl(FSFETCHSTATUS);
+ bp[1] = htonl(vnode->fid.vid);
+ bp[2] = htonl(vnode->fid.vnode);
+ bp[3] = htonl(vnode->fid.unique);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.FetchData
+ */
+static int afs_deliver_fs_fetch_data(struct afs_call *call)
+{
+ struct afs_vnode *vnode = call->reply;
+ struct afs_read *req = call->reply3;
+ const __be32 *bp;
+ unsigned int size;
+ void *buffer;
+ int ret;
+
+ _enter("{%u,%zu/%u;%llu/%llu}",
+ call->unmarshall, call->offset, call->count,
+ req->remain, req->actual_len);
+
+ switch (call->unmarshall) {
+ case 0:
+ req->actual_len = 0;
+ call->offset = 0;
+ call->unmarshall++;
+ if (call->operation_ID != FSFETCHDATA64) {
+ call->unmarshall++;
+ goto no_msw;
+ }
+
+ /* extract the upper part of the returned data length of an
+ * FSFETCHDATA64 op (which should always be 0 using this
+ * client) */
+ case 1:
+ _debug("extract data length (MSW)");
+ ret = afs_extract_data(call, &call->tmp, 4, true);
+ if (ret < 0)
+ return ret;
+
+ req->actual_len = ntohl(call->tmp);
+ req->actual_len <<= 32;
+ call->offset = 0;
+ call->unmarshall++;
+
+ no_msw:
+ /* extract the returned data length */
+ case 2:
+ _debug("extract data length");
+ ret = afs_extract_data(call, &call->tmp, 4, true);
+ if (ret < 0)
+ return ret;
+
+ req->actual_len |= ntohl(call->tmp);
+ _debug("DATA length: %llu", req->actual_len);
+
+ req->remain = req->actual_len;
+ call->offset = req->pos & (PAGE_SIZE - 1);
+ req->index = 0;
+ if (req->actual_len == 0)
+ goto no_more_data;
+ call->unmarshall++;
+
+ begin_page:
+ ASSERTCMP(req->index, <, req->nr_pages);
+ if (req->remain > PAGE_SIZE - call->offset)
+ size = PAGE_SIZE - call->offset;
+ else
+ size = req->remain;
+ call->count = call->offset + size;
+ ASSERTCMP(call->count, <=, PAGE_SIZE);
+ req->remain -= size;
+
+ /* extract the returned data */
+ case 3:
+ _debug("extract data %llu/%llu %zu/%u",
+ req->remain, req->actual_len, call->offset, call->count);
+
+ buffer = kmap(req->pages[req->index]);
+ ret = afs_extract_data(call, buffer, call->count, true);
+ kunmap(req->pages[req->index]);
+ if (ret < 0)
+ return ret;
+ if (call->offset == PAGE_SIZE) {
+ if (req->page_done)
+ req->page_done(call, req);
+ req->index++;
+ if (req->remain > 0) {
+ call->offset = 0;
+ if (req->index >= req->nr_pages) {
+ call->unmarshall = 4;
+ goto begin_discard;
+ }
+ goto begin_page;
+ }
+ }
+ goto no_more_data;
+
+ /* Discard any excess data the server gave us */
+ begin_discard:
+ case 4:
+ size = min_t(loff_t, sizeof(afs_discard_buffer), req->remain);
+ call->count = size;
+ _debug("extract discard %llu/%llu %zu/%u",
+ req->remain, req->actual_len, call->offset, call->count);
+
+ call->offset = 0;
+ ret = afs_extract_data(call, afs_discard_buffer, call->count, true);
+ req->remain -= call->offset;
+ if (ret < 0)
+ return ret;
+ if (req->remain > 0)
+ goto begin_discard;
+
+ no_more_data:
+ call->offset = 0;
+ call->unmarshall = 5;
+
+ /* extract the metadata */
+ case 5:
+ ret = afs_extract_data(call, call->buffer,
+ (21 + 3 + 6) * 4, false);
+ if (ret < 0)
+ return ret;
+
+ bp = call->buffer;
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL);
+ xdr_decode_AFSCallBack(&bp, vnode);
+ if (call->reply2)
+ xdr_decode_AFSVolSync(&bp, call->reply2);
+
+ call->offset = 0;
+ call->unmarshall++;
+
+ case 6:
+ break;
+ }
+
+ for (; req->index < req->nr_pages; req->index++) {
+ if (call->count < PAGE_SIZE)
+ zero_user_segment(req->pages[req->index],
+ call->count, PAGE_SIZE);
+ if (req->page_done)
+ req->page_done(call, req);
+ call->count = 0;
+ }
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+static void afs_fetch_data_destructor(struct afs_call *call)
+{
+ struct afs_read *req = call->reply3;
+
+ afs_put_read(req);
+ afs_flat_call_destructor(call);
+}
+
+/*
+ * FS.FetchData operation type
+ */
+static const struct afs_call_type afs_RXFSFetchData = {
+ .name = "FS.FetchData",
+ .deliver = afs_deliver_fs_fetch_data,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_fetch_data_destructor,
+};
+
+static const struct afs_call_type afs_RXFSFetchData64 = {
+ .name = "FS.FetchData64",
+ .deliver = afs_deliver_fs_fetch_data,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_fetch_data_destructor,
+};
+
+/*
+ * fetch data from a very large file
+ */
+static int afs_fs_fetch_data64(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ struct afs_read *req,
+ bool async)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter("");
+
+ call = afs_alloc_flat_call(&afs_RXFSFetchData64, 32, (21 + 3 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = NULL; /* volsync */
+ call->reply3 = req;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+ call->operation_ID = FSFETCHDATA64;
+
+ /* marshall the parameters */
+ bp = call->request;
+ bp[0] = htonl(FSFETCHDATA64);
+ bp[1] = htonl(vnode->fid.vid);
+ bp[2] = htonl(vnode->fid.vnode);
+ bp[3] = htonl(vnode->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));
+
+ atomic_inc(&req->usage);
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * fetch data from a file
+ */
+int afs_fs_fetch_data(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ struct afs_read *req,
+ bool async)
+{
+ struct afs_call *call;
+ __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(server, key, vnode, req, async);
+
+ _enter("");
+
+ call = afs_alloc_flat_call(&afs_RXFSFetchData, 24, (21 + 3 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = NULL; /* volsync */
+ call->reply3 = req;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+ call->operation_ID = FSFETCHDATA;
+
+ /* marshall the parameters */
+ bp = call->request;
+ bp[0] = htonl(FSFETCHDATA);
+ bp[1] = htonl(vnode->fid.vid);
+ bp[2] = htonl(vnode->fid.vnode);
+ bp[3] = htonl(vnode->fid.unique);
+ bp[4] = htonl(lower_32_bits(req->pos));
+ bp[5] = htonl(lower_32_bits(req->len));
+
+ atomic_inc(&req->usage);
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.GiveUpCallBacks
+ */
+static int afs_deliver_fs_give_up_callbacks(struct afs_call *call)
+{
+ _enter("");
+
+ /* shouldn't be any reply data */
+ return afs_extract_data(call, NULL, 0, false);
+}
+
+/*
+ * FS.GiveUpCallBacks operation type
+ */
+static const struct afs_call_type afs_RXFSGiveUpCallBacks = {
+ .name = "FS.GiveUpCallBacks",
+ .deliver = afs_deliver_fs_give_up_callbacks,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * give up a set of callbacks
+ * - the callbacks are held in the server->cb_break ring
+ */
+int afs_fs_give_up_callbacks(struct afs_server *server,
+ bool async)
+{
+ struct afs_call *call;
+ size_t ncallbacks;
+ __be32 *bp, *tp;
+ int loop;
+
+ ncallbacks = CIRC_CNT(server->cb_break_head, server->cb_break_tail,
+ ARRAY_SIZE(server->cb_break));
+
+ _enter("{%zu},", ncallbacks);
+
+ if (ncallbacks == 0)
+ return 0;
+ if (ncallbacks > AFSCBMAX)
+ ncallbacks = AFSCBMAX;
+
+ _debug("break %zu callbacks", ncallbacks);
+
+ call = afs_alloc_flat_call(&afs_RXFSGiveUpCallBacks,
+ 12 + ncallbacks * 6 * 4, 0);
+ if (!call)
+ return -ENOMEM;
+
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ tp = bp + 2 + ncallbacks * 3;
+ *bp++ = htonl(FSGIVEUPCALLBACKS);
+ *bp++ = htonl(ncallbacks);
+ *tp++ = htonl(ncallbacks);
+
+ atomic_sub(ncallbacks, &server->cb_break_n);
+ for (loop = ncallbacks; loop > 0; loop--) {
+ struct afs_callback *cb =
+ &server->cb_break[server->cb_break_tail];
+
+ *bp++ = htonl(cb->fid.vid);
+ *bp++ = htonl(cb->fid.vnode);
+ *bp++ = htonl(cb->fid.unique);
+ *tp++ = htonl(cb->version);
+ *tp++ = htonl(cb->expiry);
+ *tp++ = htonl(cb->type);
+ smp_mb();
+ server->cb_break_tail =
+ (server->cb_break_tail + 1) &
+ (ARRAY_SIZE(server->cb_break) - 1);
+ }
+
+ ASSERT(ncallbacks > 0);
+ wake_up_nr(&server->cb_break_waitq, ncallbacks);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.CreateFile or an FS.MakeDir
+ */
+static int afs_deliver_fs_create_vnode(struct afs_call *call)
+{
+ struct afs_vnode *vnode = call->reply;
+ 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, call->reply2);
+ xdr_decode_AFSFetchStatus(&bp, call->reply3, NULL, NULL);
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL);
+ xdr_decode_AFSCallBack_raw(&bp, call->reply4);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.CreateFile and FS.MakeDir operation type
+ */
+static const struct afs_call_type afs_RXFSCreateXXXX = {
+ .name = "FS.CreateXXXX",
+ .deliver = afs_deliver_fs_create_vnode,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * create a file or make a directory
+ */
+int afs_fs_create(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ const char *name,
+ umode_t mode,
+ struct afs_fid *newfid,
+ struct afs_file_status *newstatus,
+ struct afs_callback *newcb,
+ bool async)
+{
+ struct afs_call *call;
+ size_t namesz, reqsz, padsz;
+ __be32 *bp;
+
+ _enter("");
+
+ namesz = strlen(name);
+ padsz = (4 - (namesz & 3)) & 3;
+ reqsz = (5 * 4) + namesz + padsz + (6 * 4);
+
+ call = afs_alloc_flat_call(&afs_RXFSCreateXXXX, reqsz,
+ (3 + 21 + 21 + 3 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = newfid;
+ call->reply3 = newstatus;
+ call->reply4 = newcb;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(S_ISDIR(mode) ? FSMAKEDIR : FSCREATEFILE);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+ *bp++ = htonl(namesz);
+ memcpy(bp, 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(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
+ *bp++ = 0; /* owner */
+ *bp++ = 0; /* group */
+ *bp++ = htonl(mode & S_IALLUGO); /* unix mode */
+ *bp++ = 0; /* segment size */
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.RemoveFile or FS.RemoveDir
+ */
+static int afs_deliver_fs_remove(struct afs_call *call)
+{
+ struct afs_vnode *vnode = call->reply;
+ 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, &vnode->status, vnode, NULL);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.RemoveDir/FS.RemoveFile operation type
+ */
+static const struct afs_call_type afs_RXFSRemoveXXXX = {
+ .name = "FS.RemoveXXXX",
+ .deliver = afs_deliver_fs_remove,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * remove a file or directory
+ */
+int afs_fs_remove(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ const char *name,
+ bool isdir,
+ bool async)
+{
+ struct afs_call *call;
+ size_t namesz, reqsz, padsz;
+ __be32 *bp;
+
+ _enter("");
+
+ namesz = strlen(name);
+ padsz = (4 - (namesz & 3)) & 3;
+ reqsz = (5 * 4) + namesz + padsz;
+
+ call = afs_alloc_flat_call(&afs_RXFSRemoveXXXX, reqsz, (21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(isdir ? FSREMOVEDIR : FSREMOVEFILE);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+ *bp++ = htonl(namesz);
+ memcpy(bp, name, namesz);
+ bp = (void *) bp + namesz;
+ if (padsz > 0) {
+ memset(bp, 0, padsz);
+ bp = (void *) bp + padsz;
+ }
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.Link
+ */
+static int afs_deliver_fs_link(struct afs_call *call)
+{
+ struct afs_vnode *dvnode = call->reply, *vnode = call->reply2;
+ 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, &vnode->status, vnode, NULL);
+ xdr_decode_AFSFetchStatus(&bp, &dvnode->status, dvnode, NULL);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.Link operation type
+ */
+static const struct afs_call_type afs_RXFSLink = {
+ .name = "FS.Link",
+ .deliver = afs_deliver_fs_link,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * make a hard link
+ */
+int afs_fs_link(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *dvnode,
+ struct afs_vnode *vnode,
+ const char *name,
+ bool async)
+{
+ struct afs_call *call;
+ size_t namesz, reqsz, padsz;
+ __be32 *bp;
+
+ _enter("");
+
+ namesz = strlen(name);
+ padsz = (4 - (namesz & 3)) & 3;
+ reqsz = (5 * 4) + namesz + padsz + (3 * 4);
+
+ call = afs_alloc_flat_call(&afs_RXFSLink, reqsz, (21 + 21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = dvnode;
+ call->reply2 = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSLINK);
+ *bp++ = htonl(dvnode->fid.vid);
+ *bp++ = htonl(dvnode->fid.vnode);
+ *bp++ = htonl(dvnode->fid.unique);
+ *bp++ = htonl(namesz);
+ memcpy(bp, name, namesz);
+ bp = (void *) bp + namesz;
+ if (padsz > 0) {
+ memset(bp, 0, padsz);
+ bp = (void *) bp + padsz;
+ }
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.Symlink
+ */
+static int afs_deliver_fs_symlink(struct afs_call *call)
+{
+ struct afs_vnode *vnode = call->reply;
+ 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, call->reply2);
+ xdr_decode_AFSFetchStatus(&bp, call->reply3, NULL, NULL);
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.Symlink operation type
+ */
+static const struct afs_call_type afs_RXFSSymlink = {
+ .name = "FS.Symlink",
+ .deliver = afs_deliver_fs_symlink,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * create a symbolic link
+ */
+int afs_fs_symlink(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ const char *name,
+ const char *contents,
+ struct afs_fid *newfid,
+ struct afs_file_status *newstatus,
+ bool async)
+{
+ struct afs_call *call;
+ size_t namesz, reqsz, padsz, c_namesz, c_padsz;
+ __be32 *bp;
+
+ _enter("");
+
+ namesz = strlen(name);
+ padsz = (4 - (namesz & 3)) & 3;
+
+ c_namesz = strlen(contents);
+ c_padsz = (4 - (c_namesz & 3)) & 3;
+
+ reqsz = (6 * 4) + namesz + padsz + c_namesz + c_padsz + (6 * 4);
+
+ call = afs_alloc_flat_call(&afs_RXFSSymlink, reqsz,
+ (3 + 21 + 21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = newfid;
+ call->reply3 = newstatus;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSSYMLINK);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+ *bp++ = htonl(namesz);
+ memcpy(bp, name, namesz);
+ bp = (void *) bp + namesz;
+ if (padsz > 0) {
+ memset(bp, 0, padsz);
+ bp = (void *) bp + padsz;
+ }
+ *bp++ = htonl(c_namesz);
+ memcpy(bp, contents, 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(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
+ *bp++ = 0; /* owner */
+ *bp++ = 0; /* group */
+ *bp++ = htonl(S_IRWXUGO); /* unix mode */
+ *bp++ = 0; /* segment size */
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.Rename
+ */
+static int afs_deliver_fs_rename(struct afs_call *call)
+{
+ struct afs_vnode *orig_dvnode = call->reply, *new_dvnode = call->reply2;
+ 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, &orig_dvnode->status, orig_dvnode, NULL);
+ if (new_dvnode != orig_dvnode)
+ xdr_decode_AFSFetchStatus(&bp, &new_dvnode->status, new_dvnode,
+ NULL);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.Rename operation type
+ */
+static const struct afs_call_type afs_RXFSRename = {
+ .name = "FS.Rename",
+ .deliver = afs_deliver_fs_rename,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * create a symbolic link
+ */
+int afs_fs_rename(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *orig_dvnode,
+ const char *orig_name,
+ struct afs_vnode *new_dvnode,
+ const char *new_name,
+ bool async)
+{
+ struct afs_call *call;
+ size_t reqsz, o_namesz, o_padsz, n_namesz, n_padsz;
+ __be32 *bp;
+
+ _enter("");
+
+ o_namesz = strlen(orig_name);
+ o_padsz = (4 - (o_namesz & 3)) & 3;
+
+ n_namesz = strlen(new_name);
+ 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(&afs_RXFSRename, reqsz, (21 + 21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = orig_dvnode;
+ call->reply2 = new_dvnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSRENAME);
+ *bp++ = htonl(orig_dvnode->fid.vid);
+ *bp++ = htonl(orig_dvnode->fid.vnode);
+ *bp++ = htonl(orig_dvnode->fid.unique);
+ *bp++ = htonl(o_namesz);
+ memcpy(bp, orig_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_dvnode->fid.vid);
+ *bp++ = htonl(new_dvnode->fid.vnode);
+ *bp++ = htonl(new_dvnode->fid.unique);
+ *bp++ = htonl(n_namesz);
+ memcpy(bp, new_name, n_namesz);
+ bp = (void *) bp + n_namesz;
+ if (n_padsz > 0) {
+ memset(bp, 0, n_padsz);
+ bp = (void *) bp + n_padsz;
+ }
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.StoreData
+ */
+static int afs_deliver_fs_store_data(struct afs_call *call)
+{
+ struct afs_vnode *vnode = call->reply;
+ 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, &vnode->status, vnode,
+ &call->store_version);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ afs_pages_written_back(vnode, call);
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.StoreData operation type
+ */
+static const struct afs_call_type afs_RXFSStoreData = {
+ .name = "FS.StoreData",
+ .deliver = afs_deliver_fs_store_data,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+static const struct afs_call_type afs_RXFSStoreData64 = {
+ .name = "FS.StoreData64",
+ .deliver = afs_deliver_fs_store_data,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * store a set of pages to a very large file
+ */
+static int afs_fs_store_data64(struct afs_server *server,
+ struct afs_writeback *wb,
+ pgoff_t first, pgoff_t last,
+ unsigned offset, unsigned to,
+ loff_t size, loff_t pos, loff_t i_size,
+ bool async)
+{
+ struct afs_vnode *vnode = wb->vnode;
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter(",%x,{%x:%u},,",
+ key_serial(wb->key), vnode->fid.vid, vnode->fid.vnode);
+
+ call = afs_alloc_flat_call(&afs_RXFSStoreData64,
+ (4 + 6 + 3 * 2) * 4,
+ (21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->wb = wb;
+ call->key = wb->key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+ call->mapping = vnode->vfs_inode.i_mapping;
+ call->first = first;
+ call->last = last;
+ call->first_offset = offset;
+ call->last_to = to;
+ call->send_pages = true;
+ call->store_version = vnode->status.data_version + 1;
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSSTOREDATA64);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+
+ *bp++ = htonl(AFS_SET_MTIME); /* mask */
+ *bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
+ *bp++ = 0; /* owner */
+ *bp++ = 0; /* group */
+ *bp++ = 0; /* unix mode */
+ *bp++ = 0; /* segment size */
+
+ *bp++ = htonl(pos >> 32);
+ *bp++ = htonl((u32) pos);
+ *bp++ = htonl(size >> 32);
+ *bp++ = htonl((u32) size);
+ *bp++ = htonl(i_size >> 32);
+ *bp++ = htonl((u32) i_size);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * store a set of pages
+ */
+int afs_fs_store_data(struct afs_server *server, struct afs_writeback *wb,
+ pgoff_t first, pgoff_t last,
+ unsigned offset, unsigned to,
+ bool async)
+{
+ struct afs_vnode *vnode = wb->vnode;
+ struct afs_call *call;
+ loff_t size, pos, i_size;
+ __be32 *bp;
+
+ _enter(",%x,{%x:%u},,",
+ key_serial(wb->key), vnode->fid.vid, vnode->fid.vnode);
+
+ size = (loff_t)to - (loff_t)offset;
+ if (first != last)
+ size += (loff_t)(last - first) << PAGE_SHIFT;
+ pos = (loff_t)first << PAGE_SHIFT;
+ pos += offset;
+
+ i_size = i_size_read(&vnode->vfs_inode);
+ if (pos + size > i_size)
+ i_size = size + pos;
+
+ _debug("size %llx, at %llx, i_size %llx",
+ (unsigned long long) size, (unsigned long long) pos,
+ (unsigned long long) i_size);
+
+ if (pos >> 32 || i_size >> 32 || size >> 32 || (pos + size) >> 32)
+ return afs_fs_store_data64(server, wb, first, last, offset, to,
+ size, pos, i_size, async);
+
+ call = afs_alloc_flat_call(&afs_RXFSStoreData,
+ (4 + 6 + 3) * 4,
+ (21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->wb = wb;
+ call->key = wb->key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+ call->mapping = vnode->vfs_inode.i_mapping;
+ call->first = first;
+ call->last = last;
+ call->first_offset = offset;
+ call->last_to = to;
+ call->send_pages = true;
+ call->store_version = vnode->status.data_version + 1;
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSSTOREDATA);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+
+ *bp++ = htonl(AFS_SET_MTIME); /* mask */
+ *bp++ = htonl(vnode->vfs_inode.i_mtime.tv_sec); /* mtime */
+ *bp++ = 0; /* owner */
+ *bp++ = 0; /* group */
+ *bp++ = 0; /* unix mode */
+ *bp++ = 0; /* segment size */
+
+ *bp++ = htonl(pos);
+ *bp++ = htonl(size);
+ *bp++ = htonl(i_size);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.StoreStatus
+ */
+static int afs_deliver_fs_store_status(struct afs_call *call)
+{
+ afs_dataversion_t *store_version;
+ struct afs_vnode *vnode = call->reply;
+ 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 */
+ store_version = NULL;
+ if (call->operation_ID == FSSTOREDATA)
+ store_version = &call->store_version;
+
+ bp = call->buffer;
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, store_version);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.StoreStatus operation type
+ */
+static const struct afs_call_type afs_RXFSStoreStatus = {
+ .name = "FS.StoreStatus",
+ .deliver = afs_deliver_fs_store_status,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+static const struct afs_call_type afs_RXFSStoreData_as_Status = {
+ .name = "FS.StoreData",
+ .deliver = afs_deliver_fs_store_status,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+static const struct afs_call_type afs_RXFSStoreData64_as_Status = {
+ .name = "FS.StoreData64",
+ .deliver = afs_deliver_fs_store_status,
+ .abort_to_error = afs_abort_to_error,
+ .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 int afs_fs_setattr_size64(struct afs_server *server, struct key *key,
+ struct afs_vnode *vnode, struct iattr *attr,
+ bool async)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter(",%x,{%x:%u},,",
+ key_serial(key), vnode->fid.vid, vnode->fid.vnode);
+
+ ASSERT(attr->ia_valid & ATTR_SIZE);
+
+ call = afs_alloc_flat_call(&afs_RXFSStoreData64_as_Status,
+ (4 + 6 + 3 * 2) * 4,
+ (21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+ call->store_version = vnode->status.data_version + 1;
+ call->operation_ID = FSSTOREDATA;
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSSTOREDATA64);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+
+ xdr_encode_AFS_StoreStatus(&bp, attr);
+
+ *bp++ = 0; /* position of start of write */
+ *bp++ = 0;
+ *bp++ = 0; /* size of write */
+ *bp++ = 0;
+ *bp++ = htonl(attr->ia_size >> 32); /* new file length */
+ *bp++ = htonl((u32) attr->ia_size);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * set the attributes on a file, using FS.StoreData rather than FS.StoreStatus
+ * so as to alter the file size also
+ */
+static int afs_fs_setattr_size(struct afs_server *server, struct key *key,
+ struct afs_vnode *vnode, struct iattr *attr,
+ bool async)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter(",%x,{%x:%u},,",
+ key_serial(key), vnode->fid.vid, vnode->fid.vnode);
+
+ ASSERT(attr->ia_valid & ATTR_SIZE);
+ if (attr->ia_size >> 32)
+ return afs_fs_setattr_size64(server, key, vnode, attr,
+ async);
+
+ call = afs_alloc_flat_call(&afs_RXFSStoreData_as_Status,
+ (4 + 6 + 3) * 4,
+ (21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+ call->store_version = vnode->status.data_version + 1;
+ call->operation_ID = FSSTOREDATA;
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSSTOREDATA);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+
+ xdr_encode_AFS_StoreStatus(&bp, attr);
+
+ *bp++ = 0; /* position of start of write */
+ *bp++ = 0; /* size of write */
+ *bp++ = htonl(attr->ia_size); /* new file length */
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * set the attributes on a file, using FS.StoreData if there's a change in file
+ * size, and FS.StoreStatus otherwise
+ */
+int afs_fs_setattr(struct afs_server *server, struct key *key,
+ struct afs_vnode *vnode, struct iattr *attr,
+ bool async)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ if (attr->ia_valid & ATTR_SIZE)
+ return afs_fs_setattr_size(server, key, vnode, attr,
+ async);
+
+ _enter(",%x,{%x:%u},,",
+ key_serial(key), vnode->fid.vid, vnode->fid.vnode);
+
+ call = afs_alloc_flat_call(&afs_RXFSStoreStatus,
+ (4 + 6) * 4,
+ (21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+ call->operation_ID = FSSTORESTATUS;
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSSTORESTATUS);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+
+ xdr_encode_AFS_StoreStatus(&bp, attr);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.GetVolumeStatus
+ */
+static int afs_deliver_fs_get_volume_status(struct afs_call *call)
+{
+ const __be32 *bp;
+ char *p;
+ int ret;
+
+ _enter("{%u}", call->unmarshall);
+
+ switch (call->unmarshall) {
+ case 0:
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the returned status record */
+ case 1:
+ _debug("extract status");
+ ret = afs_extract_data(call, call->buffer,
+ 12 * 4, true);
+ if (ret < 0)
+ return ret;
+
+ bp = call->buffer;
+ xdr_decode_AFSFetchVolumeStatus(&bp, call->reply2);
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the volume name length */
+ case 2:
+ ret = afs_extract_data(call, &call->tmp, 4, true);
+ if (ret < 0)
+ return ret;
+
+ call->count = ntohl(call->tmp);
+ _debug("volname length: %u", call->count);
+ if (call->count >= AFSNAMEMAX)
+ return -EBADMSG;
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the volume name */
+ case 3:
+ _debug("extract volname");
+ if (call->count > 0) {
+ ret = afs_extract_data(call, call->reply3,
+ call->count, true);
+ if (ret < 0)
+ return ret;
+ }
+
+ p = call->reply3;
+ p[call->count] = 0;
+ _debug("volname '%s'", p);
+
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the volume name padding */
+ if ((call->count & 3) == 0) {
+ call->unmarshall++;
+ goto no_volname_padding;
+ }
+ call->count = 4 - (call->count & 3);
+
+ case 4:
+ ret = afs_extract_data(call, call->buffer,
+ call->count, true);
+ if (ret < 0)
+ return ret;
+
+ call->offset = 0;
+ call->unmarshall++;
+ no_volname_padding:
+
+ /* extract the offline message length */
+ case 5:
+ ret = afs_extract_data(call, &call->tmp, 4, true);
+ if (ret < 0)
+ return ret;
+
+ call->count = ntohl(call->tmp);
+ _debug("offline msg length: %u", call->count);
+ if (call->count >= AFSNAMEMAX)
+ return -EBADMSG;
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the offline message */
+ case 6:
+ _debug("extract offline");
+ if (call->count > 0) {
+ ret = afs_extract_data(call, call->reply3,
+ call->count, true);
+ if (ret < 0)
+ return ret;
+ }
+
+ p = call->reply3;
+ p[call->count] = 0;
+ _debug("offline '%s'", p);
+
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the offline message padding */
+ if ((call->count & 3) == 0) {
+ call->unmarshall++;
+ goto no_offline_padding;
+ }
+ call->count = 4 - (call->count & 3);
+
+ case 7:
+ ret = afs_extract_data(call, call->buffer,
+ call->count, true);
+ if (ret < 0)
+ return ret;
+
+ call->offset = 0;
+ call->unmarshall++;
+ no_offline_padding:
+
+ /* extract the message of the day length */
+ case 8:
+ ret = afs_extract_data(call, &call->tmp, 4, true);
+ if (ret < 0)
+ return ret;
+
+ call->count = ntohl(call->tmp);
+ _debug("motd length: %u", call->count);
+ if (call->count >= AFSNAMEMAX)
+ return -EBADMSG;
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the message of the day */
+ case 9:
+ _debug("extract motd");
+ if (call->count > 0) {
+ ret = afs_extract_data(call, call->reply3,
+ call->count, true);
+ if (ret < 0)
+ return ret;
+ }
+
+ p = call->reply3;
+ p[call->count] = 0;
+ _debug("motd '%s'", p);
+
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the message of the day padding */
+ call->count = (4 - (call->count & 3)) & 3;
+
+ case 10:
+ ret = afs_extract_data(call, call->buffer,
+ call->count, false);
+ if (ret < 0)
+ return ret;
+
+ call->offset = 0;
+ call->unmarshall++;
+ case 11:
+ break;
+ }
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * destroy an FS.GetVolumeStatus call
+ */
+static void afs_get_volume_status_call_destructor(struct afs_call *call)
+{
+ kfree(call->reply3);
+ call->reply3 = NULL;
+ afs_flat_call_destructor(call);
+}
+
+/*
+ * FS.GetVolumeStatus operation type
+ */
+static const struct afs_call_type afs_RXFSGetVolumeStatus = {
+ .name = "FS.GetVolumeStatus",
+ .deliver = afs_deliver_fs_get_volume_status,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_get_volume_status_call_destructor,
+};
+
+/*
+ * fetch the status of a volume
+ */
+int afs_fs_get_volume_status(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ struct afs_volume_status *vs,
+ bool async)
+{
+ struct afs_call *call;
+ __be32 *bp;
+ void *tmpbuf;
+
+ _enter("");
+
+ tmpbuf = kmalloc(AFSOPAQUEMAX, GFP_KERNEL);
+ if (!tmpbuf)
+ return -ENOMEM;
+
+ call = afs_alloc_flat_call(&afs_RXFSGetVolumeStatus, 2 * 4, 12 * 4);
+ if (!call) {
+ kfree(tmpbuf);
+ return -ENOMEM;
+ }
+
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = vs;
+ call->reply3 = tmpbuf;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ bp[0] = htonl(FSGETVOLUMESTATUS);
+ bp[1] = htonl(vnode->fid.vid);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * deliver reply data to an FS.SetLock, FS.ExtendLock or FS.ReleaseLock
+ */
+static int afs_deliver_fs_xxxx_lock(struct afs_call *call)
+{
+ 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, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.SetLock operation type
+ */
+static const struct afs_call_type afs_RXFSSetLock = {
+ .name = "FS.SetLock",
+ .deliver = afs_deliver_fs_xxxx_lock,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * FS.ExtendLock operation type
+ */
+static const struct afs_call_type afs_RXFSExtendLock = {
+ .name = "FS.ExtendLock",
+ .deliver = afs_deliver_fs_xxxx_lock,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * FS.ReleaseLock operation type
+ */
+static const struct afs_call_type afs_RXFSReleaseLock = {
+ .name = "FS.ReleaseLock",
+ .deliver = afs_deliver_fs_xxxx_lock,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * get a lock on a file
+ */
+int afs_fs_set_lock(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ afs_lock_type_t type,
+ bool async)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter("");
+
+ call = afs_alloc_flat_call(&afs_RXFSSetLock, 5 * 4, 6 * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSSETLOCK);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+ *bp++ = htonl(type);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * extend a lock on a file
+ */
+int afs_fs_extend_lock(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ bool async)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter("");
+
+ call = afs_alloc_flat_call(&afs_RXFSExtendLock, 4 * 4, 6 * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSEXTENDLOCK);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}
+
+/*
+ * release a lock on a file
+ */
+int afs_fs_release_lock(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ bool async)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter("");
+
+ call = afs_alloc_flat_call(&afs_RXFSReleaseLock, 4 * 4, 6 * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSRELEASELOCK);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, async);
+}