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1268 lines
36 KiB
1268 lines
36 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* SMB1 (CIFS) version specific operations |
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* |
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* Copyright (c) 2012, Jeff Layton <[email protected]> |
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*/ |
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|
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#include <linux/pagemap.h> |
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#include <linux/vfs.h> |
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#include <uapi/linux/magic.h> |
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#include "cifsglob.h" |
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#include "cifsproto.h" |
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#include "cifs_debug.h" |
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#include "cifspdu.h" |
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#include "cifs_unicode.h" |
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#include "fs_context.h" |
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|
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/* |
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* An NT cancel request header looks just like the original request except: |
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* |
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* The Command is SMB_COM_NT_CANCEL |
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* The WordCount is zeroed out |
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* The ByteCount is zeroed out |
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* |
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* This function mangles an existing request buffer into a |
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* SMB_COM_NT_CANCEL request and then sends it. |
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*/ |
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static int |
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send_nt_cancel(struct TCP_Server_Info *server, struct smb_rqst *rqst, |
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struct mid_q_entry *mid) |
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{ |
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int rc = 0; |
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struct smb_hdr *in_buf = (struct smb_hdr *)rqst->rq_iov[0].iov_base; |
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|
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/* -4 for RFC1001 length and +2 for BCC field */ |
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in_buf->smb_buf_length = cpu_to_be32(sizeof(struct smb_hdr) - 4 + 2); |
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in_buf->Command = SMB_COM_NT_CANCEL; |
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in_buf->WordCount = 0; |
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put_bcc(0, in_buf); |
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|
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cifs_server_lock(server); |
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rc = cifs_sign_smb(in_buf, server, &mid->sequence_number); |
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if (rc) { |
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cifs_server_unlock(server); |
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return rc; |
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} |
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|
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/* |
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* The response to this call was already factored into the sequence |
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* number when the call went out, so we must adjust it back downward |
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* after signing here. |
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*/ |
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--server->sequence_number; |
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rc = smb_send(server, in_buf, be32_to_cpu(in_buf->smb_buf_length)); |
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if (rc < 0) |
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server->sequence_number--; |
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|
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cifs_server_unlock(server); |
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|
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cifs_dbg(FYI, "issued NT_CANCEL for mid %u, rc = %d\n", |
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get_mid(in_buf), rc); |
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|
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return rc; |
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} |
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|
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static bool |
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cifs_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2) |
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{ |
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return ob1->fid.netfid == ob2->fid.netfid; |
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} |
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|
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static unsigned int |
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cifs_read_data_offset(char *buf) |
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{ |
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READ_RSP *rsp = (READ_RSP *)buf; |
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return le16_to_cpu(rsp->DataOffset); |
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} |
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|
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static unsigned int |
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cifs_read_data_length(char *buf, bool in_remaining) |
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{ |
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READ_RSP *rsp = (READ_RSP *)buf; |
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/* It's a bug reading remaining data for SMB1 packets */ |
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WARN_ON(in_remaining); |
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return (le16_to_cpu(rsp->DataLengthHigh) << 16) + |
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le16_to_cpu(rsp->DataLength); |
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} |
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|
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static struct mid_q_entry * |
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cifs_find_mid(struct TCP_Server_Info *server, char *buffer) |
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{ |
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struct smb_hdr *buf = (struct smb_hdr *)buffer; |
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struct mid_q_entry *mid; |
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|
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spin_lock(&server->mid_lock); |
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list_for_each_entry(mid, &server->pending_mid_q, qhead) { |
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if (compare_mid(mid->mid, buf) && |
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mid->mid_state == MID_REQUEST_SUBMITTED && |
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le16_to_cpu(mid->command) == buf->Command) { |
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kref_get(&mid->refcount); |
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spin_unlock(&server->mid_lock); |
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return mid; |
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} |
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} |
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spin_unlock(&server->mid_lock); |
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return NULL; |
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} |
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|
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static void |
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cifs_add_credits(struct TCP_Server_Info *server, |
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const struct cifs_credits *credits, const int optype) |
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{ |
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spin_lock(&server->req_lock); |
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server->credits += credits->value; |
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server->in_flight--; |
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spin_unlock(&server->req_lock); |
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wake_up(&server->request_q); |
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} |
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|
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static void |
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cifs_set_credits(struct TCP_Server_Info *server, const int val) |
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{ |
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spin_lock(&server->req_lock); |
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server->credits = val; |
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server->oplocks = val > 1 ? enable_oplocks : false; |
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spin_unlock(&server->req_lock); |
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} |
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|
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static int * |
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cifs_get_credits_field(struct TCP_Server_Info *server, const int optype) |
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{ |
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return &server->credits; |
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} |
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|
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static unsigned int |
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cifs_get_credits(struct mid_q_entry *mid) |
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{ |
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return 1; |
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} |
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|
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/* |
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* Find a free multiplex id (SMB mid). Otherwise there could be |
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* mid collisions which might cause problems, demultiplexing the |
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* wrong response to this request. Multiplex ids could collide if |
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* one of a series requests takes much longer than the others, or |
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* if a very large number of long lived requests (byte range |
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* locks or FindNotify requests) are pending. No more than |
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* 64K-1 requests can be outstanding at one time. If no |
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* mids are available, return zero. A future optimization |
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* could make the combination of mids and uid the key we use |
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* to demultiplex on (rather than mid alone). |
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* In addition to the above check, the cifs demultiplex |
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* code already used the command code as a secondary |
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* check of the frame and if signing is negotiated the |
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* response would be discarded if the mid were the same |
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* but the signature was wrong. Since the mid is not put in the |
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* pending queue until later (when it is about to be dispatched) |
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* we do have to limit the number of outstanding requests |
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* to somewhat less than 64K-1 although it is hard to imagine |
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* so many threads being in the vfs at one time. |
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*/ |
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static __u64 |
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cifs_get_next_mid(struct TCP_Server_Info *server) |
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{ |
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__u64 mid = 0; |
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__u16 last_mid, cur_mid; |
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bool collision, reconnect = false; |
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|
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spin_lock(&server->mid_lock); |
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|
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/* mid is 16 bit only for CIFS/SMB */ |
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cur_mid = (__u16)((server->CurrentMid) & 0xffff); |
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/* we do not want to loop forever */ |
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last_mid = cur_mid; |
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cur_mid++; |
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/* avoid 0xFFFF MID */ |
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if (cur_mid == 0xffff) |
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cur_mid++; |
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|
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/* |
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* This nested loop looks more expensive than it is. |
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* In practice the list of pending requests is short, |
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* fewer than 50, and the mids are likely to be unique |
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* on the first pass through the loop unless some request |
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* takes longer than the 64 thousand requests before it |
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* (and it would also have to have been a request that |
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* did not time out). |
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*/ |
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while (cur_mid != last_mid) { |
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struct mid_q_entry *mid_entry; |
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unsigned int num_mids; |
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collision = false; |
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if (cur_mid == 0) |
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cur_mid++; |
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|
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num_mids = 0; |
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list_for_each_entry(mid_entry, &server->pending_mid_q, qhead) { |
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++num_mids; |
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if (mid_entry->mid == cur_mid && |
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mid_entry->mid_state == MID_REQUEST_SUBMITTED) { |
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/* This mid is in use, try a different one */ |
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collision = true; |
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break; |
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} |
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} |
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|
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/* |
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* if we have more than 32k mids in the list, then something |
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* is very wrong. Possibly a local user is trying to DoS the |
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* box by issuing long-running calls and SIGKILL'ing them. If |
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* we get to 2^16 mids then we're in big trouble as this |
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* function could loop forever. |
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* |
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* Go ahead and assign out the mid in this situation, but force |
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* an eventual reconnect to clean out the pending_mid_q. |
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*/ |
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if (num_mids > 32768) |
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reconnect = true; |
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|
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if (!collision) { |
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mid = (__u64)cur_mid; |
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server->CurrentMid = mid; |
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break; |
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} |
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cur_mid++; |
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} |
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spin_unlock(&server->mid_lock); |
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|
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if (reconnect) { |
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cifs_signal_cifsd_for_reconnect(server, false); |
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} |
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|
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return mid; |
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} |
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|
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/* |
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return codes: |
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0 not a transact2, or all data present |
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>0 transact2 with that much data missing |
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-EINVAL invalid transact2 |
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*/ |
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static int |
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check2ndT2(char *buf) |
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{ |
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struct smb_hdr *pSMB = (struct smb_hdr *)buf; |
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struct smb_t2_rsp *pSMBt; |
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int remaining; |
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__u16 total_data_size, data_in_this_rsp; |
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|
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if (pSMB->Command != SMB_COM_TRANSACTION2) |
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return 0; |
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|
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/* check for plausible wct, bcc and t2 data and parm sizes */ |
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/* check for parm and data offset going beyond end of smb */ |
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if (pSMB->WordCount != 10) { /* coalesce_t2 depends on this */ |
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cifs_dbg(FYI, "Invalid transact2 word count\n"); |
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return -EINVAL; |
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} |
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|
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pSMBt = (struct smb_t2_rsp *)pSMB; |
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|
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total_data_size = get_unaligned_le16(&pSMBt->t2_rsp.TotalDataCount); |
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data_in_this_rsp = get_unaligned_le16(&pSMBt->t2_rsp.DataCount); |
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|
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if (total_data_size == data_in_this_rsp) |
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return 0; |
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else if (total_data_size < data_in_this_rsp) { |
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cifs_dbg(FYI, "total data %d smaller than data in frame %d\n", |
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total_data_size, data_in_this_rsp); |
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return -EINVAL; |
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} |
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|
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remaining = total_data_size - data_in_this_rsp; |
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|
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cifs_dbg(FYI, "missing %d bytes from transact2, check next response\n", |
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remaining); |
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if (total_data_size > CIFSMaxBufSize) { |
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cifs_dbg(VFS, "TotalDataSize %d is over maximum buffer %d\n", |
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total_data_size, CIFSMaxBufSize); |
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return -EINVAL; |
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} |
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return remaining; |
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} |
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|
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static int |
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coalesce_t2(char *second_buf, struct smb_hdr *target_hdr) |
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{ |
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struct smb_t2_rsp *pSMBs = (struct smb_t2_rsp *)second_buf; |
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struct smb_t2_rsp *pSMBt = (struct smb_t2_rsp *)target_hdr; |
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char *data_area_of_tgt; |
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char *data_area_of_src; |
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int remaining; |
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unsigned int byte_count, total_in_tgt; |
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__u16 tgt_total_cnt, src_total_cnt, total_in_src; |
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|
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src_total_cnt = get_unaligned_le16(&pSMBs->t2_rsp.TotalDataCount); |
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tgt_total_cnt = get_unaligned_le16(&pSMBt->t2_rsp.TotalDataCount); |
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|
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if (tgt_total_cnt != src_total_cnt) |
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cifs_dbg(FYI, "total data count of primary and secondary t2 differ source=%hu target=%hu\n", |
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src_total_cnt, tgt_total_cnt); |
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total_in_tgt = get_unaligned_le16(&pSMBt->t2_rsp.DataCount); |
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remaining = tgt_total_cnt - total_in_tgt; |
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if (remaining < 0) { |
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cifs_dbg(FYI, "Server sent too much data. tgt_total_cnt=%hu total_in_tgt=%u\n", |
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tgt_total_cnt, total_in_tgt); |
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return -EPROTO; |
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} |
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|
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if (remaining == 0) { |
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/* nothing to do, ignore */ |
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cifs_dbg(FYI, "no more data remains\n"); |
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return 0; |
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} |
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|
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total_in_src = get_unaligned_le16(&pSMBs->t2_rsp.DataCount); |
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if (remaining < total_in_src) |
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cifs_dbg(FYI, "transact2 2nd response contains too much data\n"); |
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|
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/* find end of first SMB data area */ |
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data_area_of_tgt = (char *)&pSMBt->hdr.Protocol + |
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get_unaligned_le16(&pSMBt->t2_rsp.DataOffset); |
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|
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/* validate target area */ |
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data_area_of_src = (char *)&pSMBs->hdr.Protocol + |
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get_unaligned_le16(&pSMBs->t2_rsp.DataOffset); |
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data_area_of_tgt += total_in_tgt; |
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total_in_tgt += total_in_src; |
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/* is the result too big for the field? */ |
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if (total_in_tgt > USHRT_MAX) { |
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cifs_dbg(FYI, "coalesced DataCount too large (%u)\n", |
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total_in_tgt); |
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return -EPROTO; |
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} |
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put_unaligned_le16(total_in_tgt, &pSMBt->t2_rsp.DataCount); |
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|
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/* fix up the BCC */ |
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byte_count = get_bcc(target_hdr); |
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byte_count += total_in_src; |
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/* is the result too big for the field? */ |
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if (byte_count > USHRT_MAX) { |
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cifs_dbg(FYI, "coalesced BCC too large (%u)\n", byte_count); |
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return -EPROTO; |
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} |
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put_bcc(byte_count, target_hdr); |
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|
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byte_count = be32_to_cpu(target_hdr->smb_buf_length); |
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byte_count += total_in_src; |
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/* don't allow buffer to overflow */ |
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if (byte_count > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) { |
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cifs_dbg(FYI, "coalesced BCC exceeds buffer size (%u)\n", |
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byte_count); |
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return -ENOBUFS; |
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} |
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target_hdr->smb_buf_length = cpu_to_be32(byte_count); |
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|
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/* copy second buffer into end of first buffer */ |
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memcpy(data_area_of_tgt, data_area_of_src, total_in_src); |
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|
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if (remaining != total_in_src) { |
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/* more responses to go */ |
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cifs_dbg(FYI, "waiting for more secondary responses\n"); |
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return 1; |
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} |
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|
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/* we are done */ |
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cifs_dbg(FYI, "found the last secondary response\n"); |
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return 0; |
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} |
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|
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static void |
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cifs_downgrade_oplock(struct TCP_Server_Info *server, |
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struct cifsInodeInfo *cinode, __u32 oplock, |
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unsigned int epoch, bool *purge_cache) |
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{ |
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cifs_set_oplock_level(cinode, oplock); |
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} |
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|
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static bool |
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cifs_check_trans2(struct mid_q_entry *mid, struct TCP_Server_Info *server, |
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char *buf, int malformed) |
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{ |
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if (malformed) |
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return false; |
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if (check2ndT2(buf) <= 0) |
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return false; |
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mid->multiRsp = true; |
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if (mid->resp_buf) { |
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/* merge response - fix up 1st*/ |
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malformed = coalesce_t2(buf, mid->resp_buf); |
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if (malformed > 0) |
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return true; |
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/* All parts received or packet is malformed. */ |
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mid->multiEnd = true; |
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dequeue_mid(mid, malformed); |
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return true; |
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} |
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if (!server->large_buf) { |
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/*FIXME: switch to already allocated largebuf?*/ |
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cifs_dbg(VFS, "1st trans2 resp needs bigbuf\n"); |
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} else { |
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/* Have first buffer */ |
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mid->resp_buf = buf; |
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mid->large_buf = true; |
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server->bigbuf = NULL; |
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} |
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return true; |
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} |
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|
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static bool |
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cifs_need_neg(struct TCP_Server_Info *server) |
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{ |
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return server->maxBuf == 0; |
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} |
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|
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static int |
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cifs_negotiate(const unsigned int xid, |
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struct cifs_ses *ses, |
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struct TCP_Server_Info *server) |
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{ |
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int rc; |
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rc = CIFSSMBNegotiate(xid, ses, server); |
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if (rc == -EAGAIN) { |
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/* retry only once on 1st time connection */ |
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set_credits(server, 1); |
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rc = CIFSSMBNegotiate(xid, ses, server); |
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if (rc == -EAGAIN) |
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rc = -EHOSTDOWN; |
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} |
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return rc; |
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} |
|
|
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static unsigned int |
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cifs_negotiate_wsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
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{ |
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__u64 unix_cap = le64_to_cpu(tcon->fsUnixInfo.Capability); |
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struct TCP_Server_Info *server = tcon->ses->server; |
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unsigned int wsize; |
|
|
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/* start with specified wsize, or default */ |
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if (ctx->wsize) |
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wsize = ctx->wsize; |
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else if (tcon->unix_ext && (unix_cap & CIFS_UNIX_LARGE_WRITE_CAP)) |
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wsize = CIFS_DEFAULT_IOSIZE; |
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else |
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wsize = CIFS_DEFAULT_NON_POSIX_WSIZE; |
|
|
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/* can server support 24-bit write sizes? (via UNIX extensions) */ |
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if (!tcon->unix_ext || !(unix_cap & CIFS_UNIX_LARGE_WRITE_CAP)) |
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wsize = min_t(unsigned int, wsize, CIFS_MAX_RFC1002_WSIZE); |
|
|
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/* |
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* no CAP_LARGE_WRITE_X or is signing enabled without CAP_UNIX set? |
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* Limit it to max buffer offered by the server, minus the size of the |
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* WRITEX header, not including the 4 byte RFC1001 length. |
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*/ |
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if (!(server->capabilities & CAP_LARGE_WRITE_X) || |
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(!(server->capabilities & CAP_UNIX) && server->sign)) |
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wsize = min_t(unsigned int, wsize, |
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server->maxBuf - sizeof(WRITE_REQ) + 4); |
|
|
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/* hard limit of CIFS_MAX_WSIZE */ |
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wsize = min_t(unsigned int, wsize, CIFS_MAX_WSIZE); |
|
|
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return wsize; |
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} |
|
|
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static unsigned int |
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cifs_negotiate_rsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
|
{ |
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__u64 unix_cap = le64_to_cpu(tcon->fsUnixInfo.Capability); |
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struct TCP_Server_Info *server = tcon->ses->server; |
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unsigned int rsize, defsize; |
|
|
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/* |
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* Set default value... |
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* |
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* HACK alert! Ancient servers have very small buffers. Even though |
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* MS-CIFS indicates that servers are only limited by the client's |
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* bufsize for reads, testing against win98se shows that it throws |
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* INVALID_PARAMETER errors if you try to request too large a read. |
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* OS/2 just sends back short reads. |
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* |
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* If the server doesn't advertise CAP_LARGE_READ_X, then assume that |
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* it can't handle a read request larger than its MaxBufferSize either. |
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*/ |
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if (tcon->unix_ext && (unix_cap & CIFS_UNIX_LARGE_READ_CAP)) |
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defsize = CIFS_DEFAULT_IOSIZE; |
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else if (server->capabilities & CAP_LARGE_READ_X) |
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defsize = CIFS_DEFAULT_NON_POSIX_RSIZE; |
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else |
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defsize = server->maxBuf - sizeof(READ_RSP); |
|
|
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rsize = ctx->rsize ? ctx->rsize : defsize; |
|
|
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/* |
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* no CAP_LARGE_READ_X? Then MS-CIFS states that we must limit this to |
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* the client's MaxBufferSize. |
|
*/ |
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if (!(server->capabilities & CAP_LARGE_READ_X)) |
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rsize = min_t(unsigned int, CIFSMaxBufSize, rsize); |
|
|
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/* hard limit of CIFS_MAX_RSIZE */ |
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rsize = min_t(unsigned int, rsize, CIFS_MAX_RSIZE); |
|
|
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return rsize; |
|
} |
|
|
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static void |
|
cifs_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon, |
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struct cifs_sb_info *cifs_sb) |
|
{ |
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CIFSSMBQFSDeviceInfo(xid, tcon); |
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CIFSSMBQFSAttributeInfo(xid, tcon); |
|
} |
|
|
|
static int |
|
cifs_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifs_sb_info *cifs_sb, const char *full_path) |
|
{ |
|
int rc; |
|
FILE_ALL_INFO *file_info; |
|
|
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file_info = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); |
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if (file_info == NULL) |
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return -ENOMEM; |
|
|
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rc = CIFSSMBQPathInfo(xid, tcon, full_path, file_info, |
|
0 /* not legacy */, cifs_sb->local_nls, |
|
cifs_remap(cifs_sb)); |
|
|
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if (rc == -EOPNOTSUPP || rc == -EINVAL) |
|
rc = SMBQueryInformation(xid, tcon, full_path, file_info, |
|
cifs_sb->local_nls, cifs_remap(cifs_sb)); |
|
kfree(file_info); |
|
return rc; |
|
} |
|
|
|
static int cifs_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifs_sb_info *cifs_sb, const char *full_path, |
|
struct cifs_open_info_data *data, bool *adjustTZ, bool *symlink) |
|
{ |
|
int rc; |
|
FILE_ALL_INFO fi = {}; |
|
|
|
*symlink = false; |
|
|
|
/* could do find first instead but this returns more info */ |
|
rc = CIFSSMBQPathInfo(xid, tcon, full_path, &fi, 0 /* not legacy */, cifs_sb->local_nls, |
|
cifs_remap(cifs_sb)); |
|
/* |
|
* BB optimize code so we do not make the above call when server claims |
|
* no NT SMB support and the above call failed at least once - set flag |
|
* in tcon or mount. |
|
*/ |
|
if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) { |
|
rc = SMBQueryInformation(xid, tcon, full_path, &fi, cifs_sb->local_nls, |
|
cifs_remap(cifs_sb)); |
|
if (!rc) |
|
move_cifs_info_to_smb2(&data->fi, &fi); |
|
*adjustTZ = true; |
|
} |
|
|
|
if (!rc && (le32_to_cpu(fi.Attributes) & ATTR_REPARSE)) { |
|
int tmprc; |
|
int oplock = 0; |
|
struct cifs_fid fid; |
|
struct cifs_open_parms oparms; |
|
|
|
oparms.tcon = tcon; |
|
oparms.cifs_sb = cifs_sb; |
|
oparms.desired_access = FILE_READ_ATTRIBUTES; |
|
oparms.create_options = cifs_create_options(cifs_sb, 0); |
|
oparms.disposition = FILE_OPEN; |
|
oparms.path = full_path; |
|
oparms.fid = &fid; |
|
oparms.reconnect = false; |
|
|
|
/* Need to check if this is a symbolic link or not */ |
|
tmprc = CIFS_open(xid, &oparms, &oplock, NULL); |
|
if (tmprc == -EOPNOTSUPP) |
|
*symlink = true; |
|
else if (tmprc == 0) |
|
CIFSSMBClose(xid, tcon, fid.netfid); |
|
} |
|
|
|
return rc; |
|
} |
|
|
|
static int cifs_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifs_sb_info *cifs_sb, const char *full_path, |
|
u64 *uniqueid, struct cifs_open_info_data *unused) |
|
{ |
|
/* |
|
* We can not use the IndexNumber field by default from Windows or |
|
* Samba (in ALL_INFO buf) but we can request it explicitly. The SNIA |
|
* CIFS spec claims that this value is unique within the scope of a |
|
* share, and the windows docs hint that it's actually unique |
|
* per-machine. |
|
* |
|
* There may be higher info levels that work but are there Windows |
|
* server or network appliances for which IndexNumber field is not |
|
* guaranteed unique? |
|
*/ |
|
return CIFSGetSrvInodeNumber(xid, tcon, full_path, uniqueid, |
|
cifs_sb->local_nls, |
|
cifs_remap(cifs_sb)); |
|
} |
|
|
|
static int cifs_query_file_info(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifsFileInfo *cfile, struct cifs_open_info_data *data) |
|
{ |
|
int rc; |
|
FILE_ALL_INFO fi = {}; |
|
|
|
if (cfile->symlink_target) { |
|
data->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL); |
|
if (!data->symlink_target) |
|
return -ENOMEM; |
|
} |
|
|
|
rc = CIFSSMBQFileInfo(xid, tcon, cfile->fid.netfid, &fi); |
|
if (!rc) |
|
move_cifs_info_to_smb2(&data->fi, &fi); |
|
return rc; |
|
} |
|
|
|
static void |
|
cifs_clear_stats(struct cifs_tcon *tcon) |
|
{ |
|
atomic_set(&tcon->stats.cifs_stats.num_writes, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_reads, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_flushes, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_oplock_brks, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_opens, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_posixopens, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_posixmkdirs, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_closes, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_deletes, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_mkdirs, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_rmdirs, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_renames, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_t2renames, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_ffirst, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_fnext, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_fclose, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_hardlinks, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_symlinks, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_locks, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_acl_get, 0); |
|
atomic_set(&tcon->stats.cifs_stats.num_acl_set, 0); |
|
} |
|
|
|
static void |
|
cifs_print_stats(struct seq_file *m, struct cifs_tcon *tcon) |
|
{ |
|
seq_printf(m, " Oplocks breaks: %d", |
|
atomic_read(&tcon->stats.cifs_stats.num_oplock_brks)); |
|
seq_printf(m, "\nReads: %d Bytes: %llu", |
|
atomic_read(&tcon->stats.cifs_stats.num_reads), |
|
(long long)(tcon->bytes_read)); |
|
seq_printf(m, "\nWrites: %d Bytes: %llu", |
|
atomic_read(&tcon->stats.cifs_stats.num_writes), |
|
(long long)(tcon->bytes_written)); |
|
seq_printf(m, "\nFlushes: %d", |
|
atomic_read(&tcon->stats.cifs_stats.num_flushes)); |
|
seq_printf(m, "\nLocks: %d HardLinks: %d Symlinks: %d", |
|
atomic_read(&tcon->stats.cifs_stats.num_locks), |
|
atomic_read(&tcon->stats.cifs_stats.num_hardlinks), |
|
atomic_read(&tcon->stats.cifs_stats.num_symlinks)); |
|
seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d", |
|
atomic_read(&tcon->stats.cifs_stats.num_opens), |
|
atomic_read(&tcon->stats.cifs_stats.num_closes), |
|
atomic_read(&tcon->stats.cifs_stats.num_deletes)); |
|
seq_printf(m, "\nPosix Opens: %d Posix Mkdirs: %d", |
|
atomic_read(&tcon->stats.cifs_stats.num_posixopens), |
|
atomic_read(&tcon->stats.cifs_stats.num_posixmkdirs)); |
|
seq_printf(m, "\nMkdirs: %d Rmdirs: %d", |
|
atomic_read(&tcon->stats.cifs_stats.num_mkdirs), |
|
atomic_read(&tcon->stats.cifs_stats.num_rmdirs)); |
|
seq_printf(m, "\nRenames: %d T2 Renames %d", |
|
atomic_read(&tcon->stats.cifs_stats.num_renames), |
|
atomic_read(&tcon->stats.cifs_stats.num_t2renames)); |
|
seq_printf(m, "\nFindFirst: %d FNext %d FClose %d", |
|
atomic_read(&tcon->stats.cifs_stats.num_ffirst), |
|
atomic_read(&tcon->stats.cifs_stats.num_fnext), |
|
atomic_read(&tcon->stats.cifs_stats.num_fclose)); |
|
} |
|
|
|
static void |
|
cifs_mkdir_setinfo(struct inode *inode, const char *full_path, |
|
struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon, |
|
const unsigned int xid) |
|
{ |
|
FILE_BASIC_INFO info; |
|
struct cifsInodeInfo *cifsInode; |
|
u32 dosattrs; |
|
int rc; |
|
|
|
memset(&info, 0, sizeof(info)); |
|
cifsInode = CIFS_I(inode); |
|
dosattrs = cifsInode->cifsAttrs|ATTR_READONLY; |
|
info.Attributes = cpu_to_le32(dosattrs); |
|
rc = CIFSSMBSetPathInfo(xid, tcon, full_path, &info, cifs_sb->local_nls, |
|
cifs_sb); |
|
if (rc == 0) |
|
cifsInode->cifsAttrs = dosattrs; |
|
} |
|
|
|
static int cifs_open_file(const unsigned int xid, struct cifs_open_parms *oparms, __u32 *oplock, |
|
void *buf) |
|
{ |
|
FILE_ALL_INFO *fi = buf; |
|
|
|
if (!(oparms->tcon->ses->capabilities & CAP_NT_SMBS)) |
|
return SMBLegacyOpen(xid, oparms->tcon, oparms->path, |
|
oparms->disposition, |
|
oparms->desired_access, |
|
oparms->create_options, |
|
&oparms->fid->netfid, oplock, fi, |
|
oparms->cifs_sb->local_nls, |
|
cifs_remap(oparms->cifs_sb)); |
|
return CIFS_open(xid, oparms, oplock, fi); |
|
} |
|
|
|
static void |
|
cifs_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock) |
|
{ |
|
struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry)); |
|
cfile->fid.netfid = fid->netfid; |
|
cifs_set_oplock_level(cinode, oplock); |
|
cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode); |
|
} |
|
|
|
static void |
|
cifs_close_file(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifs_fid *fid) |
|
{ |
|
CIFSSMBClose(xid, tcon, fid->netfid); |
|
} |
|
|
|
static int |
|
cifs_flush_file(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifs_fid *fid) |
|
{ |
|
return CIFSSMBFlush(xid, tcon, fid->netfid); |
|
} |
|
|
|
static int |
|
cifs_sync_read(const unsigned int xid, struct cifs_fid *pfid, |
|
struct cifs_io_parms *parms, unsigned int *bytes_read, |
|
char **buf, int *buf_type) |
|
{ |
|
parms->netfid = pfid->netfid; |
|
return CIFSSMBRead(xid, parms, bytes_read, buf, buf_type); |
|
} |
|
|
|
static int |
|
cifs_sync_write(const unsigned int xid, struct cifs_fid *pfid, |
|
struct cifs_io_parms *parms, unsigned int *written, |
|
struct kvec *iov, unsigned long nr_segs) |
|
{ |
|
|
|
parms->netfid = pfid->netfid; |
|
return CIFSSMBWrite2(xid, parms, written, iov, nr_segs); |
|
} |
|
|
|
static int |
|
smb_set_file_info(struct inode *inode, const char *full_path, |
|
FILE_BASIC_INFO *buf, const unsigned int xid) |
|
{ |
|
int oplock = 0; |
|
int rc; |
|
__u32 netpid; |
|
struct cifs_fid fid; |
|
struct cifs_open_parms oparms; |
|
struct cifsFileInfo *open_file; |
|
struct cifsInodeInfo *cinode = CIFS_I(inode); |
|
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); |
|
struct tcon_link *tlink = NULL; |
|
struct cifs_tcon *tcon; |
|
|
|
/* if the file is already open for write, just use that fileid */ |
|
open_file = find_writable_file(cinode, FIND_WR_FSUID_ONLY); |
|
if (open_file) { |
|
fid.netfid = open_file->fid.netfid; |
|
netpid = open_file->pid; |
|
tcon = tlink_tcon(open_file->tlink); |
|
goto set_via_filehandle; |
|
} |
|
|
|
tlink = cifs_sb_tlink(cifs_sb); |
|
if (IS_ERR(tlink)) { |
|
rc = PTR_ERR(tlink); |
|
tlink = NULL; |
|
goto out; |
|
} |
|
tcon = tlink_tcon(tlink); |
|
|
|
rc = CIFSSMBSetPathInfo(xid, tcon, full_path, buf, cifs_sb->local_nls, |
|
cifs_sb); |
|
if (rc == 0) { |
|
cinode->cifsAttrs = le32_to_cpu(buf->Attributes); |
|
goto out; |
|
} else if (rc != -EOPNOTSUPP && rc != -EINVAL) { |
|
goto out; |
|
} |
|
|
|
oparms.tcon = tcon; |
|
oparms.cifs_sb = cifs_sb; |
|
oparms.desired_access = SYNCHRONIZE | FILE_WRITE_ATTRIBUTES; |
|
oparms.create_options = cifs_create_options(cifs_sb, CREATE_NOT_DIR); |
|
oparms.disposition = FILE_OPEN; |
|
oparms.path = full_path; |
|
oparms.fid = &fid; |
|
oparms.reconnect = false; |
|
|
|
cifs_dbg(FYI, "calling SetFileInfo since SetPathInfo for times not supported by this server\n"); |
|
rc = CIFS_open(xid, &oparms, &oplock, NULL); |
|
if (rc != 0) { |
|
if (rc == -EIO) |
|
rc = -EINVAL; |
|
goto out; |
|
} |
|
|
|
netpid = current->tgid; |
|
|
|
set_via_filehandle: |
|
rc = CIFSSMBSetFileInfo(xid, tcon, buf, fid.netfid, netpid); |
|
if (!rc) |
|
cinode->cifsAttrs = le32_to_cpu(buf->Attributes); |
|
|
|
if (open_file == NULL) |
|
CIFSSMBClose(xid, tcon, fid.netfid); |
|
else |
|
cifsFileInfo_put(open_file); |
|
out: |
|
if (tlink != NULL) |
|
cifs_put_tlink(tlink); |
|
return rc; |
|
} |
|
|
|
static int |
|
cifs_set_compression(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifsFileInfo *cfile) |
|
{ |
|
return CIFSSMB_set_compression(xid, tcon, cfile->fid.netfid); |
|
} |
|
|
|
static int |
|
cifs_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, |
|
const char *path, struct cifs_sb_info *cifs_sb, |
|
struct cifs_fid *fid, __u16 search_flags, |
|
struct cifs_search_info *srch_inf) |
|
{ |
|
int rc; |
|
|
|
rc = CIFSFindFirst(xid, tcon, path, cifs_sb, |
|
&fid->netfid, search_flags, srch_inf, true); |
|
if (rc) |
|
cifs_dbg(FYI, "find first failed=%d\n", rc); |
|
return rc; |
|
} |
|
|
|
static int |
|
cifs_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifs_fid *fid, __u16 search_flags, |
|
struct cifs_search_info *srch_inf) |
|
{ |
|
return CIFSFindNext(xid, tcon, fid->netfid, search_flags, srch_inf); |
|
} |
|
|
|
static int |
|
cifs_close_dir(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifs_fid *fid) |
|
{ |
|
return CIFSFindClose(xid, tcon, fid->netfid); |
|
} |
|
|
|
static int |
|
cifs_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid, |
|
struct cifsInodeInfo *cinode) |
|
{ |
|
return CIFSSMBLock(0, tcon, fid->netfid, current->tgid, 0, 0, 0, 0, |
|
LOCKING_ANDX_OPLOCK_RELEASE, false, |
|
CIFS_CACHE_READ(cinode) ? 1 : 0); |
|
} |
|
|
|
static int |
|
cifs_queryfs(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifs_sb_info *cifs_sb, struct kstatfs *buf) |
|
{ |
|
int rc = -EOPNOTSUPP; |
|
|
|
buf->f_type = CIFS_SUPER_MAGIC; |
|
|
|
/* |
|
* We could add a second check for a QFS Unix capability bit |
|
*/ |
|
if ((tcon->ses->capabilities & CAP_UNIX) && |
|
(CIFS_POSIX_EXTENSIONS & le64_to_cpu(tcon->fsUnixInfo.Capability))) |
|
rc = CIFSSMBQFSPosixInfo(xid, tcon, buf); |
|
|
|
/* |
|
* Only need to call the old QFSInfo if failed on newer one, |
|
* e.g. by OS/2. |
|
**/ |
|
if (rc && (tcon->ses->capabilities & CAP_NT_SMBS)) |
|
rc = CIFSSMBQFSInfo(xid, tcon, buf); |
|
|
|
/* |
|
* Some old Windows servers also do not support level 103, retry with |
|
* older level one if old server failed the previous call or we |
|
* bypassed it because we detected that this was an older LANMAN sess |
|
*/ |
|
if (rc) |
|
rc = SMBOldQFSInfo(xid, tcon, buf); |
|
return rc; |
|
} |
|
|
|
static int |
|
cifs_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, |
|
__u64 length, __u32 type, int lock, int unlock, bool wait) |
|
{ |
|
return CIFSSMBLock(xid, tlink_tcon(cfile->tlink), cfile->fid.netfid, |
|
current->tgid, length, offset, unlock, lock, |
|
(__u8)type, wait, 0); |
|
} |
|
|
|
static int |
|
cifs_unix_dfs_readlink(const unsigned int xid, struct cifs_tcon *tcon, |
|
const unsigned char *searchName, char **symlinkinfo, |
|
const struct nls_table *nls_codepage) |
|
{ |
|
#ifdef CONFIG_CIFS_DFS_UPCALL |
|
int rc; |
|
struct dfs_info3_param referral = {0}; |
|
|
|
rc = get_dfs_path(xid, tcon->ses, searchName, nls_codepage, &referral, |
|
0); |
|
|
|
if (!rc) { |
|
*symlinkinfo = kstrdup(referral.node_name, GFP_KERNEL); |
|
free_dfs_info_param(&referral); |
|
if (!*symlinkinfo) |
|
rc = -ENOMEM; |
|
} |
|
return rc; |
|
#else /* No DFS support */ |
|
return -EREMOTE; |
|
#endif |
|
} |
|
|
|
static int |
|
cifs_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, |
|
struct cifs_sb_info *cifs_sb, const char *full_path, |
|
char **target_path, bool is_reparse_point) |
|
{ |
|
int rc; |
|
int oplock = 0; |
|
struct cifs_fid fid; |
|
struct cifs_open_parms oparms; |
|
|
|
cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path); |
|
|
|
if (is_reparse_point) { |
|
cifs_dbg(VFS, "reparse points not handled for SMB1 symlinks\n"); |
|
return -EOPNOTSUPP; |
|
} |
|
|
|
/* Check for unix extensions */ |
|
if (cap_unix(tcon->ses)) { |
|
rc = CIFSSMBUnixQuerySymLink(xid, tcon, full_path, target_path, |
|
cifs_sb->local_nls, |
|
cifs_remap(cifs_sb)); |
|
if (rc == -EREMOTE) |
|
rc = cifs_unix_dfs_readlink(xid, tcon, full_path, |
|
target_path, |
|
cifs_sb->local_nls); |
|
|
|
goto out; |
|
} |
|
|
|
oparms.tcon = tcon; |
|
oparms.cifs_sb = cifs_sb; |
|
oparms.desired_access = FILE_READ_ATTRIBUTES; |
|
oparms.create_options = cifs_create_options(cifs_sb, |
|
OPEN_REPARSE_POINT); |
|
oparms.disposition = FILE_OPEN; |
|
oparms.path = full_path; |
|
oparms.fid = &fid; |
|
oparms.reconnect = false; |
|
|
|
rc = CIFS_open(xid, &oparms, &oplock, NULL); |
|
if (rc) |
|
goto out; |
|
|
|
rc = CIFSSMBQuerySymLink(xid, tcon, fid.netfid, target_path, |
|
cifs_sb->local_nls); |
|
if (rc) |
|
goto out_close; |
|
|
|
convert_delimiter(*target_path, '/'); |
|
out_close: |
|
CIFSSMBClose(xid, tcon, fid.netfid); |
|
out: |
|
if (!rc) |
|
cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path); |
|
return rc; |
|
} |
|
|
|
static bool |
|
cifs_is_read_op(__u32 oplock) |
|
{ |
|
return oplock == OPLOCK_READ; |
|
} |
|
|
|
static unsigned int |
|
cifs_wp_retry_size(struct inode *inode) |
|
{ |
|
return CIFS_SB(inode->i_sb)->ctx->wsize; |
|
} |
|
|
|
static bool |
|
cifs_dir_needs_close(struct cifsFileInfo *cfile) |
|
{ |
|
return !cfile->srch_inf.endOfSearch && !cfile->invalidHandle; |
|
} |
|
|
|
static bool |
|
cifs_can_echo(struct TCP_Server_Info *server) |
|
{ |
|
if (server->tcpStatus == CifsGood) |
|
return true; |
|
|
|
return false; |
|
} |
|
|
|
static int |
|
cifs_make_node(unsigned int xid, struct inode *inode, |
|
struct dentry *dentry, struct cifs_tcon *tcon, |
|
const char *full_path, umode_t mode, dev_t dev) |
|
{ |
|
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); |
|
struct inode *newinode = NULL; |
|
int rc = -EPERM; |
|
FILE_ALL_INFO *buf = NULL; |
|
struct cifs_io_parms io_parms; |
|
__u32 oplock = 0; |
|
struct cifs_fid fid; |
|
struct cifs_open_parms oparms; |
|
unsigned int bytes_written; |
|
struct win_dev *pdev; |
|
struct kvec iov[2]; |
|
|
|
if (tcon->unix_ext) { |
|
/* |
|
* SMB1 Unix Extensions: requires server support but |
|
* works with all special files |
|
*/ |
|
struct cifs_unix_set_info_args args = { |
|
.mode = mode & ~current_umask(), |
|
.ctime = NO_CHANGE_64, |
|
.atime = NO_CHANGE_64, |
|
.mtime = NO_CHANGE_64, |
|
.device = dev, |
|
}; |
|
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { |
|
args.uid = current_fsuid(); |
|
args.gid = current_fsgid(); |
|
} else { |
|
args.uid = INVALID_UID; /* no change */ |
|
args.gid = INVALID_GID; /* no change */ |
|
} |
|
rc = CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args, |
|
cifs_sb->local_nls, |
|
cifs_remap(cifs_sb)); |
|
if (rc) |
|
goto out; |
|
|
|
rc = cifs_get_inode_info_unix(&newinode, full_path, |
|
inode->i_sb, xid); |
|
|
|
if (rc == 0) |
|
d_instantiate(dentry, newinode); |
|
goto out; |
|
} |
|
|
|
/* |
|
* SMB1 SFU emulation: should work with all servers, but only |
|
* support block and char device (no socket & fifo) |
|
*/ |
|
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) |
|
goto out; |
|
|
|
if (!S_ISCHR(mode) && !S_ISBLK(mode)) |
|
goto out; |
|
|
|
cifs_dbg(FYI, "sfu compat create special file\n"); |
|
|
|
buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); |
|
if (buf == NULL) { |
|
rc = -ENOMEM; |
|
goto out; |
|
} |
|
|
|
oparms.tcon = tcon; |
|
oparms.cifs_sb = cifs_sb; |
|
oparms.desired_access = GENERIC_WRITE; |
|
oparms.create_options = cifs_create_options(cifs_sb, CREATE_NOT_DIR | |
|
CREATE_OPTION_SPECIAL); |
|
oparms.disposition = FILE_CREATE; |
|
oparms.path = full_path; |
|
oparms.fid = &fid; |
|
oparms.reconnect = false; |
|
|
|
if (tcon->ses->server->oplocks) |
|
oplock = REQ_OPLOCK; |
|
else |
|
oplock = 0; |
|
rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, buf); |
|
if (rc) |
|
goto out; |
|
|
|
/* |
|
* BB Do not bother to decode buf since no local inode yet to put |
|
* timestamps in, but we can reuse it safely. |
|
*/ |
|
|
|
pdev = (struct win_dev *)buf; |
|
io_parms.pid = current->tgid; |
|
io_parms.tcon = tcon; |
|
io_parms.offset = 0; |
|
io_parms.length = sizeof(struct win_dev); |
|
iov[1].iov_base = buf; |
|
iov[1].iov_len = sizeof(struct win_dev); |
|
if (S_ISCHR(mode)) { |
|
memcpy(pdev->type, "IntxCHR", 8); |
|
pdev->major = cpu_to_le64(MAJOR(dev)); |
|
pdev->minor = cpu_to_le64(MINOR(dev)); |
|
rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms, |
|
&bytes_written, iov, 1); |
|
} else if (S_ISBLK(mode)) { |
|
memcpy(pdev->type, "IntxBLK", 8); |
|
pdev->major = cpu_to_le64(MAJOR(dev)); |
|
pdev->minor = cpu_to_le64(MINOR(dev)); |
|
rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms, |
|
&bytes_written, iov, 1); |
|
} |
|
tcon->ses->server->ops->close(xid, tcon, &fid); |
|
d_drop(dentry); |
|
|
|
/* FIXME: add code here to set EAs */ |
|
out: |
|
kfree(buf); |
|
return rc; |
|
} |
|
|
|
|
|
|
|
struct smb_version_operations smb1_operations = { |
|
.send_cancel = send_nt_cancel, |
|
.compare_fids = cifs_compare_fids, |
|
.setup_request = cifs_setup_request, |
|
.setup_async_request = cifs_setup_async_request, |
|
.check_receive = cifs_check_receive, |
|
.add_credits = cifs_add_credits, |
|
.set_credits = cifs_set_credits, |
|
.get_credits_field = cifs_get_credits_field, |
|
.get_credits = cifs_get_credits, |
|
.wait_mtu_credits = cifs_wait_mtu_credits, |
|
.get_next_mid = cifs_get_next_mid, |
|
.read_data_offset = cifs_read_data_offset, |
|
.read_data_length = cifs_read_data_length, |
|
.map_error = map_smb_to_linux_error, |
|
.find_mid = cifs_find_mid, |
|
.check_message = checkSMB, |
|
.dump_detail = cifs_dump_detail, |
|
.clear_stats = cifs_clear_stats, |
|
.print_stats = cifs_print_stats, |
|
.is_oplock_break = is_valid_oplock_break, |
|
.downgrade_oplock = cifs_downgrade_oplock, |
|
.check_trans2 = cifs_check_trans2, |
|
.need_neg = cifs_need_neg, |
|
.negotiate = cifs_negotiate, |
|
.negotiate_wsize = cifs_negotiate_wsize, |
|
.negotiate_rsize = cifs_negotiate_rsize, |
|
.sess_setup = CIFS_SessSetup, |
|
.logoff = CIFSSMBLogoff, |
|
.tree_connect = CIFSTCon, |
|
.tree_disconnect = CIFSSMBTDis, |
|
.get_dfs_refer = CIFSGetDFSRefer, |
|
.qfs_tcon = cifs_qfs_tcon, |
|
.is_path_accessible = cifs_is_path_accessible, |
|
.can_echo = cifs_can_echo, |
|
.query_path_info = cifs_query_path_info, |
|
.query_file_info = cifs_query_file_info, |
|
.get_srv_inum = cifs_get_srv_inum, |
|
.set_path_size = CIFSSMBSetEOF, |
|
.set_file_size = CIFSSMBSetFileSize, |
|
.set_file_info = smb_set_file_info, |
|
.set_compression = cifs_set_compression, |
|
.echo = CIFSSMBEcho, |
|
.mkdir = CIFSSMBMkDir, |
|
.mkdir_setinfo = cifs_mkdir_setinfo, |
|
.rmdir = CIFSSMBRmDir, |
|
.unlink = CIFSSMBDelFile, |
|
.rename_pending_delete = cifs_rename_pending_delete, |
|
.rename = CIFSSMBRename, |
|
.create_hardlink = CIFSCreateHardLink, |
|
.query_symlink = cifs_query_symlink, |
|
.open = cifs_open_file, |
|
.set_fid = cifs_set_fid, |
|
.close = cifs_close_file, |
|
.flush = cifs_flush_file, |
|
.async_readv = cifs_async_readv, |
|
.async_writev = cifs_async_writev, |
|
.sync_read = cifs_sync_read, |
|
.sync_write = cifs_sync_write, |
|
.query_dir_first = cifs_query_dir_first, |
|
.query_dir_next = cifs_query_dir_next, |
|
.close_dir = cifs_close_dir, |
|
.calc_smb_size = smbCalcSize, |
|
.oplock_response = cifs_oplock_response, |
|
.queryfs = cifs_queryfs, |
|
.mand_lock = cifs_mand_lock, |
|
.mand_unlock_range = cifs_unlock_range, |
|
.push_mand_locks = cifs_push_mandatory_locks, |
|
.query_mf_symlink = cifs_query_mf_symlink, |
|
.create_mf_symlink = cifs_create_mf_symlink, |
|
.is_read_op = cifs_is_read_op, |
|
.wp_retry_size = cifs_wp_retry_size, |
|
.dir_needs_close = cifs_dir_needs_close, |
|
.select_sectype = cifs_select_sectype, |
|
#ifdef CONFIG_CIFS_XATTR |
|
.query_all_EAs = CIFSSMBQAllEAs, |
|
.set_EA = CIFSSMBSetEA, |
|
#endif /* CIFS_XATTR */ |
|
.get_acl = get_cifs_acl, |
|
.get_acl_by_fid = get_cifs_acl_by_fid, |
|
.set_acl = set_cifs_acl, |
|
.make_node = cifs_make_node, |
|
}; |
|
|
|
struct smb_version_values smb1_values = { |
|
.version_string = SMB1_VERSION_STRING, |
|
.protocol_id = SMB10_PROT_ID, |
|
.large_lock_type = LOCKING_ANDX_LARGE_FILES, |
|
.exclusive_lock_type = 0, |
|
.shared_lock_type = LOCKING_ANDX_SHARED_LOCK, |
|
.unlock_lock_type = 0, |
|
.header_preamble_size = 4, |
|
.header_size = sizeof(struct smb_hdr), |
|
.max_header_size = MAX_CIFS_HDR_SIZE, |
|
.read_rsp_size = sizeof(READ_RSP), |
|
.lock_cmd = cpu_to_le16(SMB_COM_LOCKING_ANDX), |
|
.cap_unix = CAP_UNIX, |
|
.cap_nt_find = CAP_NT_SMBS | CAP_NT_FIND, |
|
.cap_large_files = CAP_LARGE_FILES, |
|
.signing_enabled = SECMODE_SIGN_ENABLED, |
|
.signing_required = SECMODE_SIGN_REQUIRED, |
|
};
|
|
|