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-rw-r--r--source3/lib/util.c90
-rw-r--r--source3/smbd/nttrans.c3
-rw-r--r--source3/torture/torture.c69
3 files changed, 162 insertions, 0 deletions
diff --git a/source3/lib/util.c b/source3/lib/util.c
index bc3eaa8d5e..11f3660df8 100644
--- a/source3/lib/util.c
+++ b/source3/lib/util.c
@@ -3273,3 +3273,93 @@ void *talloc_zeronull(const void *context, size_t size, const char *name)
return talloc_named_const(context, size, name);
}
#endif
+
+/* Split a path name into filename and stream name components. Canonicalise
+ * such that an implicit $DATA token is always explicit.
+ *
+ * The "specification" of this function can be found in the
+ * run_local_stream_name() function in torture.c, I've tried those
+ * combinations against a W2k3 server.
+ */
+
+NTSTATUS split_ntfs_stream_name(TALLOC_CTX *mem_ctx, const char *fname,
+ char **pbase, char **pstream)
+{
+ char *base = NULL;
+ char *stream = NULL;
+ char *sname; /* stream name */
+ const char *stype; /* stream type */
+
+ DEBUG(10, ("split_ntfs_stream_name called for [%s]\n", fname));
+
+ sname = strchr_m(fname, ':');
+
+ if (lp_posix_pathnames() || (sname == NULL)) {
+ if (pbase != NULL) {
+ base = talloc_strdup(mem_ctx, fname);
+ NT_STATUS_HAVE_NO_MEMORY(base);
+ }
+ goto done;
+ }
+
+ if (pbase != NULL) {
+ base = talloc_strndup(mem_ctx, fname, PTR_DIFF(sname, fname));
+ NT_STATUS_HAVE_NO_MEMORY(base);
+ }
+
+ sname += 1;
+
+ stype = strchr_m(sname, ':');
+
+ if (stype == NULL) {
+ sname = talloc_strdup(mem_ctx, sname);
+ stype = "$DATA";
+ }
+ else {
+ if (StrCaseCmp(stype, ":$DATA") != 0) {
+ /*
+ * If there is an explicit stream type, so far we only
+ * allow $DATA. Is there anything else allowed? -- vl
+ */
+ DEBUG(10, ("[%s] is an invalid stream type\n", stype));
+ TALLOC_FREE(base);
+ return NT_STATUS_OBJECT_NAME_INVALID;
+ }
+ sname = talloc_strndup(mem_ctx, sname, PTR_DIFF(stype, sname));
+ stype += 1;
+ }
+
+ if (sname == NULL) {
+ TALLOC_FREE(base);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (sname[0] == '\0') {
+ /*
+ * no stream name, so no stream
+ */
+ goto done;
+ }
+
+ if (pstream != NULL) {
+ stream = talloc_asprintf(mem_ctx, "%s:%s", sname, stype);
+ if (stream == NULL) {
+ TALLOC_FREE(sname);
+ TALLOC_FREE(base);
+ return NT_STATUS_NO_MEMORY;
+ }
+ /*
+ * upper-case the type field
+ */
+ strupper_m(strchr_m(stream, ':')+1);
+ }
+
+ done:
+ if (pbase != NULL) {
+ *pbase = base;
+ }
+ if (pstream != NULL) {
+ *pstream = stream;
+ }
+ return NT_STATUS_OK;
+}
diff --git a/source3/smbd/nttrans.c b/source3/smbd/nttrans.c
index e8df732ea2..9381174af0 100644
--- a/source3/smbd/nttrans.c
+++ b/source3/smbd/nttrans.c
@@ -271,6 +271,9 @@ void send_nt_replies(connection_struct *conn,
/****************************************************************************
Is it an NTFS stream name ?
+ An NTFS file name is <path>.<extention>:<stream name>:<stream type>
+ $DATA can be used as both a stream name and a stream type. A missing stream
+ name or type implies $DATA.
****************************************************************************/
bool is_ntfs_stream_name(const char *fname)
diff --git a/source3/torture/torture.c b/source3/torture/torture.c
index 05b41413b4..070474cf6f 100644
--- a/source3/torture/torture.c
+++ b/source3/torture/torture.c
@@ -5098,6 +5098,74 @@ static bool run_local_rbtree(int dummy)
return ret;
}
+static bool test_stream_name(const char *fname, const char *expected_base,
+ const char *expected_stream,
+ NTSTATUS expected_status)
+{
+ NTSTATUS status;
+ char *base = NULL;
+ char *stream = NULL;
+
+ status = split_ntfs_stream_name(talloc_tos(), fname, &base, &stream);
+ if (!NT_STATUS_EQUAL(status, expected_status)) {
+ goto error;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ return true;
+ }
+
+ if (base == NULL) goto error;
+
+ if (strcmp(expected_base, base) != 0) goto error;
+
+ if ((expected_stream != NULL) && (stream == NULL)) goto error;
+ if ((expected_stream == NULL) && (stream != NULL)) goto error;
+
+ if ((stream != NULL) && (strcmp(expected_stream, stream) != 0))
+ goto error;
+
+ TALLOC_FREE(base);
+ TALLOC_FREE(stream);
+ return true;
+
+ error:
+ d_fprintf(stderr, "test_stream(%s, %s, %s, %s)\n",
+ fname, expected_base ? expected_base : "<NULL>",
+ expected_stream ? expected_stream : "<NULL>",
+ nt_errstr(expected_status));
+ d_fprintf(stderr, "-> base=%s, stream=%s, status=%s\n",
+ base ? base : "<NULL>", stream ? stream : "<NULL>",
+ nt_errstr(status));
+ TALLOC_FREE(base);
+ TALLOC_FREE(stream);
+ return false;
+}
+
+static bool run_local_stream_name(int dummy)
+{
+ bool ret = true;
+
+ ret &= test_stream_name(
+ "bla", "bla", NULL, NT_STATUS_OK);
+ ret &= test_stream_name(
+ "bla::$DATA", "bla", NULL, NT_STATUS_OK);
+ ret &= test_stream_name(
+ "bla:blub:", "bla", NULL, NT_STATUS_OBJECT_NAME_INVALID);
+ ret &= test_stream_name(
+ "bla::", NULL, NULL, NT_STATUS_OBJECT_NAME_INVALID);
+ ret &= test_stream_name(
+ "bla::123", "bla", NULL, NT_STATUS_OBJECT_NAME_INVALID);
+ ret &= test_stream_name(
+ "bla:$DATA", "bla", "$DATA:$DATA", NT_STATUS_OK);
+ ret &= test_stream_name(
+ "bla:x:$DATA", "bla", "x:$DATA", NT_STATUS_OK);
+ ret &= test_stream_name(
+ "bla:x", "bla", "x:$DATA", NT_STATUS_OK);
+
+ return ret;
+}
+
static bool data_blob_equal(DATA_BLOB a, DATA_BLOB b)
{
if (a.length != b.length) {
@@ -5328,6 +5396,7 @@ static struct {
{ "LOCAL-GENCACHE", run_local_gencache, 0},
{ "LOCAL-RBTREE", run_local_rbtree, 0},
{ "LOCAL-MEMCACHE", run_local_memcache, 0},
+ { "LOCAL-STREAM-NAME", run_local_stream_name, 0},
{NULL, NULL, 0}};