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Add a "connectpath" operation to the shadow_copy2 module

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This commit is contained in:
Volker Lendecke 2009-02-02 11:52:08 +01:00
parent 56efcb7b72
commit 84090c95a5
1 changed files with 54 additions and 0 deletions
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54
source3/modules/vfs_shadow_copy2.c
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@ -416,6 +416,59 @@ static char *shadow_copy2_realpath(vfs_handle_struct *handle,
SHADOW2_NEXT(REALPATH, (handle, name, resolved_path), char *, NULL);
}
static const char *shadow_copy2_connectpath(struct vfs_handle_struct *handle,
const char *fname)
{
TALLOC_CTX *tmp_ctx = talloc_stackframe();
const char *snapdir, *baseoffset, *basedir;
size_t baselen;
char *ret;
if (!shadow_copy2_match_name(fname)) {
return handle->conn->connectpath;
}
snapdir = shadow_copy2_find_snapdir(tmp_ctx, handle);
if (snapdir == NULL) {
DEBUG(2,("no snapdir found for share at %s\n",
handle->conn->connectpath));
TALLOC_FREE(tmp_ctx);
return NULL;
}
basedir = shadow_copy2_find_basedir(tmp_ctx, handle);
if (basedir == NULL) {
DEBUG(2,("no basedir found for share at %s\n",
handle->conn->connectpath));
TALLOC_FREE(tmp_ctx);
return NULL;
}
baselen = strlen(basedir);
baseoffset = handle->conn->connectpath + baselen;
/* some sanity checks */
if (strncmp(basedir, handle->conn->connectpath, baselen) != 0 ||
(handle->conn->connectpath[baselen] != 0
&& handle->conn->connectpath[baselen] != '/')) {
DEBUG(0,("shadow_copy2_connectpath: basedir %s is not a "
"parent of %s\n", basedir,
handle->conn->connectpath));
TALLOC_FREE(tmp_ctx);
return NULL;
}
if (*baseoffset == '/') baseoffset++;
ret = talloc_asprintf(talloc_tos(), "%s/%.*s/%s",
snapdir,
GMT_NAME_LEN, fname,
baseoffset);
DEBUG(6,("shadow_copy2_connectpath: '%s' -> '%s'\n", fname, ret));
TALLOC_FREE(tmp_ctx);
return ret;
}
static NTSTATUS shadow_copy2_get_nt_acl(vfs_handle_struct *handle,
const char *fname, uint32 security_info,
struct security_descriptor **ppdesc)
@ -592,6 +645,7 @@ static vfs_op_tuple shadow_copy2_ops[] = {
{SMB_VFS_OP(shadow_copy2_link), SMB_VFS_OP_LINK, SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(shadow_copy2_mknod), SMB_VFS_OP_MKNOD, SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(shadow_copy2_realpath), SMB_VFS_OP_REALPATH, SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(shadow_copy2_connectpath), SMB_VFS_OP_CONNECTPATH, SMB_VFS_LAYER_OPAQUE},
/* NT File ACL operations */
{SMB_VFS_OP(shadow_copy2_get_nt_acl), SMB_VFS_OP_GET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT},