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r14012: added support for the SMBntcancel operation in the cifs ntvfs

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backend. This requires keeping a list of outstanding requests so the
MID can be matched. Use a talloc destructor to manage the list.
(This used to be commit 6ec250f55d)
This commit is contained in:
Andrew Tridgell 2006-03-08 05:46:09 +00:00 committed by Gerald (Jerry) Carter
parent 418befec18
commit 91931f97e8
1 changed files with 35 additions and 3 deletions
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38
source4/ntvfs/cifs/vfs_cifs.c
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@ -32,19 +32,24 @@
#include "smbd/service_stream.h"
#include "auth/auth.h"
#include "ntvfs/ntvfs.h"
#include "include/dlinklist.h"
/* this is stored in ntvfs_private */
struct cvfs_private {
struct smbcli_tree *tree;
struct smbcli_transport *transport;
struct smbsrv_tcon *tcon;
struct async_info *pending;
BOOL map_generic;
};
/* a structure used to pass information to an async handler */
struct async_info {
struct async_info *next, *prev;
struct cvfs_private *cvfs;
struct smbsrv_request *req;
struct smbcli_request *c_req;
void *parms;
};
@ -93,11 +98,10 @@ static NTSTATUS cvfs_connect(struct ntvfs_module_context *ntvfs,
machine_account = lp_parm_bool(req->tcon->service, "cifs", "use_machine_account", False);
private = talloc(ntvfs, struct cvfs_private);
private = talloc_zero(ntvfs, struct cvfs_private);
if (!private) {
return NT_STATUS_NO_MEMORY;
}
ZERO_STRUCTP(private);
ntvfs->private_data = private;
@ -183,6 +187,16 @@ static NTSTATUS cvfs_disconnect(struct ntvfs_module_context *ntvfs,
return NT_STATUS_OK;
}
/*
destroy an async info structure
*/
static int async_info_destructor(void *p)
{
struct async_info *async = talloc_get_type(p, struct async_info);
DLIST_REMOVE(async->cvfs->pending, async);
return 0;
}
/*
a handler for simple async replies
this handler can only be used for functions that don't return any
@ -206,7 +220,11 @@ static void async_simple(struct smbcli_request *c_req)
if (!async) return NT_STATUS_NO_MEMORY; \
async->parms = io; \
async->req = req; \
async->cvfs = private; \
async->c_req = c_req; \
DLIST_ADD(private->pending, async); \
c_req->async.private = async; \
talloc_set_destructor(async, async_info_destructor); \
} \
c_req->async.fn = async_fn; \
req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC; \
@ -673,7 +691,21 @@ static NTSTATUS cvfs_async_setup(struct ntvfs_module_context *ntvfs,
static NTSTATUS cvfs_cancel(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req)
{
return NT_STATUS_NOT_IMPLEMENTED;
struct cvfs_private *private = ntvfs->private_data;
/* find the matching request */
struct async_info *a;
for (a=private->pending;a;a=a->next) {
if (SVAL(a->req->in.hdr, HDR_MID) == SVAL(req->in.hdr, HDR_MID)) {
break;
}
}
if (a == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
return smb_raw_ntcancel(a->c_req);
}
/*