diff options
Diffstat (limited to 'source3/smbd/pysmbd.c')
| -rw-r--r-- | source3/smbd/pysmbd.c | 281 |
1 files changed, 156 insertions, 125 deletions
diff --git a/source3/smbd/pysmbd.c b/source3/smbd/pysmbd.c index 42694cb47c2..bf595437b7e 100644 --- a/source3/smbd/pysmbd.c +++ b/source3/smbd/pysmbd.c @@ -36,80 +36,98 @@ extern const struct generic_mapping file_generic_mapping; #undef DBGC_CLASS #define DBGC_CLASS DBGC_ACLS -static NTSTATUS set_sys_acl_no_snum(const char *fname, - SMB_ACL_TYPE_T acltype, - SMB_ACL_T theacl) +static int conn_free_wrapper(connection_struct *conn) +{ + conn_free(conn); + return 0; +}; + +static connection_struct *get_conn(TALLOC_CTX *mem_ctx, const char *service) { connection_struct *conn; + TALLOC_CTX *frame = talloc_stackframe(); + if (!posix_locking_init(false)) { + PyErr_NoMemory(); + TALLOC_FREE(frame); + return NULL; + } + + if (service) { + NTSTATUS status; + int snum = lp_servicenumber(service); + if (snum == -1) { + TALLOC_FREE(frame); + PyErr_SetString(PyExc_RuntimeError, "unknown service"); + return NULL; + } + status = create_conn_struct(mem_ctx, NULL, NULL, &conn, snum, "/", + NULL); + PyErr_NTSTATUS_IS_ERR_RAISE(status); + } else { + conn = talloc_zero(mem_ctx, connection_struct); + if (conn == NULL) { + DEBUG(0, ("talloc failed\n")); + TALLOC_FREE(frame); + PyErr_NoMemory(); + return NULL; + } + + if (!(conn->params = talloc(conn, struct share_params))) { + TALLOC_FREE(frame); + DEBUG(0,("get_conn: talloc() failed!\n")); + PyErr_NoMemory(); + return NULL; + } + conn->params->service = -1; + + set_conn_connectpath(conn, "/"); + + smbd_vfs_init(conn); + } + TALLOC_FREE(frame); + conn->read_only = false; + talloc_set_destructor(conn, conn_free_wrapper); + return conn; +} + +static NTSTATUS set_sys_acl_conn(const char *fname, + SMB_ACL_TYPE_T acltype, + SMB_ACL_T theacl, connection_struct *conn) +{ NTSTATUS status = NT_STATUS_OK; int ret; mode_t saved_umask; - conn = talloc_zero(NULL, connection_struct); - if (conn == NULL) { - DEBUG(0, ("talloc failed\n")); - return NT_STATUS_NO_MEMORY; - } - - if (!(conn->params = talloc(conn, struct share_params))) { - DEBUG(0,("set_sys_acl_no_snum: talloc() failed!\n")); - TALLOC_FREE(conn); - return NT_STATUS_NO_MEMORY; - } + TALLOC_CTX *frame = talloc_stackframe(); /* we want total control over the permissions on created files, so set our umask to 0 */ saved_umask = umask(0); - conn->params->service = -1; - - set_conn_connectpath(conn, "/"); - - smbd_vfs_init(conn); - ret = SMB_VFS_SYS_ACL_SET_FILE( conn, fname, acltype, theacl); if (ret != 0) { status = map_nt_error_from_unix_common(ret); - DEBUG(0,("set_sys_acl_no_snum: SMB_VFS_SYS_ACL_SET_FILE " + DEBUG(0,("set_sys_acl_conn: SMB_VFS_SYS_ACL_SET_FILE " "returned zero.\n")); } umask(saved_umask); - conn_free(conn); - + TALLOC_FREE(frame); return status; } -static NTSTATUS set_nt_acl_no_snum(const char *fname, - uint32 security_info_sent, const struct security_descriptor *sd) +static NTSTATUS set_nt_acl_conn(const char *fname, + uint32 security_info_sent, const struct security_descriptor *sd, + connection_struct *conn) { TALLOC_CTX *frame = talloc_stackframe(); - connection_struct *conn; NTSTATUS status = NT_STATUS_OK; files_struct *fsp; struct smb_filename *smb_fname = NULL; int flags, ret; mode_t saved_umask; - if (!posix_locking_init(false)) { - TALLOC_FREE(frame); - return NT_STATUS_NO_MEMORY; - } - - conn = talloc_zero(frame, connection_struct); - if (conn == NULL) { - TALLOC_FREE(frame); - DEBUG(0, ("talloc failed\n")); - return NT_STATUS_NO_MEMORY; - } - - if (!(conn->params = talloc(conn, struct share_params))) { - DEBUG(0,("set_nt_acl_no_snum: talloc() failed!\n")); - TALLOC_FREE(frame); - return NT_STATUS_NO_MEMORY; - } - fsp = talloc_zero(frame, struct files_struct); if (fsp == NULL) { TALLOC_FREE(frame); @@ -126,12 +144,6 @@ static NTSTATUS set_nt_acl_no_snum(const char *fname, so set our umask to 0 */ saved_umask = umask(0); - conn->params->service = -1; - - set_conn_connectpath(conn, "/"); - - smbd_vfs_init(conn); - status = create_synthetic_smb_fname_split(fsp, fname, NULL, &smb_fname); if (!NT_STATUS_IS_OK(status)) { @@ -197,6 +209,24 @@ static NTSTATUS set_nt_acl_no_snum(const char *fname, return status; } +static NTSTATUS get_nt_acl_conn(TALLOC_CTX *mem_ctx, + const char *fname, + connection_struct *conn, + uint32 security_info_wanted, + struct security_descriptor **sd) +{ + TALLOC_CTX *frame = talloc_stackframe(); + NTSTATUS status = SMB_VFS_GET_NT_ACL( conn, fname, security_info_wanted, + mem_ctx, sd); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(0,("get_nt_acl_conn: get_nt_acl returned %s.\n", nt_errstr(status))); + } + + TALLOC_FREE(frame); + + return status; +} + static SMB_ACL_T make_simple_acl(gid_t gid, mode_t chmod_mode) { @@ -304,19 +334,25 @@ static SMB_ACL_T make_simple_acl(gid_t gid, mode_t chmod_mode) static PyObject *py_smbd_set_simple_acl(PyObject *self, PyObject *args) { NTSTATUS status; - char *fname; + char *fname, *service = NULL; int mode, gid = -1; SMB_ACL_T acl; TALLOC_CTX *frame; + connection_struct *conn; - if (!PyArg_ParseTuple(args, "si|i", &fname, &mode, &gid)) + if (!PyArg_ParseTuple(args, "si|iz", &fname, &mode, &gid, &service)) return NULL; acl = make_simple_acl(gid, mode); frame = talloc_stackframe(); - status = set_sys_acl_no_snum(fname, SMB_ACL_TYPE_ACCESS, acl); + conn = get_conn(frame, service); + if (!conn) { + return NULL; + } + + status = set_sys_acl_conn(fname, SMB_ACL_TYPE_ACCESS, acl, conn); TALLOC_FREE(acl); TALLOC_FREE(frame); @@ -335,24 +371,18 @@ static PyObject *py_smbd_chown(PyObject *self, PyObject *args) NTSTATUS status = NT_STATUS_OK; int ret; - char *fname; + char *fname, *service = NULL; int uid, gid; TALLOC_CTX *frame; mode_t saved_umask; - if (!PyArg_ParseTuple(args, "sii", &fname, &uid, &gid)) + if (!PyArg_ParseTuple(args, "sii|z", &fname, &uid, &gid, &service)) return NULL; frame = talloc_stackframe(); - conn = talloc_zero(frame, connection_struct); - if (conn == NULL) { - PyErr_NoMemory(); - return NULL; - } - - if (!(conn->params = talloc(conn, struct share_params))) { - PyErr_NoMemory(); + conn = get_conn(frame, service); + if (!conn) { return NULL; } @@ -360,12 +390,6 @@ static PyObject *py_smbd_chown(PyObject *self, PyObject *args) so set our umask to 0 */ saved_umask = umask(0); - conn->params->service = -1; - - set_conn_connectpath(conn, "/"); - - smbd_vfs_init(conn); - ret = SMB_VFS_CHOWN( conn, fname, uid, gid); if (ret != 0) { status = map_nt_error_from_unix_common(errno); @@ -374,8 +398,6 @@ static PyObject *py_smbd_chown(PyObject *self, PyObject *args) umask(saved_umask); - conn_free(conn); - TALLOC_FREE(frame); PyErr_NTSTATUS_IS_ERR_RAISE(status); @@ -392,41 +414,26 @@ static PyObject *py_smbd_unlink(PyObject *self, PyObject *args) NTSTATUS status = NT_STATUS_OK; int ret; struct smb_filename *smb_fname = NULL; - char *fname; + char *fname, *service = NULL; TALLOC_CTX *frame; - mode_t saved_umask; - - if (!PyArg_ParseTuple(args, "s", &fname)) - return NULL; frame = talloc_stackframe(); - conn = talloc_zero(frame, connection_struct); - if (conn == NULL) { - PyErr_NoMemory(); + if (!PyArg_ParseTuple(args, "s|z", &fname, &service)) { + TALLOC_FREE(frame); return NULL; } - if (!(conn->params = talloc(conn, struct share_params))) { - PyErr_NoMemory(); + conn = get_conn(frame, service); + if (!conn) { + TALLOC_FREE(frame); return NULL; } - /* we want total control over the permissions on created files, - so set our umask to 0 */ - saved_umask = umask(0); - - conn->params->service = -1; - - set_conn_connectpath(conn, "/"); - - smbd_vfs_init(conn); - status = create_synthetic_smb_fname_split(frame, fname, NULL, &smb_fname); if (!NT_STATUS_IS_OK(status)) { TALLOC_FREE(frame); - umask(saved_umask); PyErr_NTSTATUS_IS_ERR_RAISE(status); } @@ -436,10 +443,6 @@ static PyObject *py_smbd_unlink(PyObject *self, PyObject *args) DEBUG(0,("unlink returned failure: %s\n", strerror(errno))); } - umask(saved_umask); - - conn_free(conn); - TALLOC_FREE(frame); PyErr_NTSTATUS_IS_ERR_RAISE(status); @@ -465,21 +468,35 @@ static PyObject *py_smbd_have_posix_acls(PyObject *self, PyObject *args) static PyObject *py_smbd_set_nt_acl(PyObject *self, PyObject *args) { NTSTATUS status; - char *fname; + char *fname, *service = NULL; int security_info_sent; PyObject *py_sd; struct security_descriptor *sd; + connection_struct *conn; + TALLOC_CTX *frame; + + frame = talloc_stackframe(); - if (!PyArg_ParseTuple(args, "siO", &fname, &security_info_sent, &py_sd)) + if (!PyArg_ParseTuple(args, "siO|z", &fname, &security_info_sent, &py_sd, &service)) { + TALLOC_FREE(frame); return NULL; + } if (!py_check_dcerpc_type(py_sd, "samba.dcerpc.security", "descriptor")) { + TALLOC_FREE(frame); + return NULL; + } + + conn = get_conn(frame, service); + if (!conn) { + TALLOC_FREE(frame); return NULL; } sd = pytalloc_get_type(py_sd, struct security_descriptor); - status = set_nt_acl_no_snum(fname, security_info_sent, sd); + status = set_nt_acl_conn(fname, security_info_sent, sd, conn); + TALLOC_FREE(frame); PyErr_NTSTATUS_IS_ERR_RAISE(status); Py_RETURN_NONE; @@ -490,22 +507,31 @@ static PyObject *py_smbd_set_nt_acl(PyObject *self, PyObject *args) */ static PyObject *py_smbd_get_nt_acl(PyObject *self, PyObject *args) { - char *fname; + char *fname, *service = NULL; int security_info_wanted; PyObject *py_sd; struct security_descriptor *sd; TALLOC_CTX *tmp_ctx = talloc_new(NULL); + connection_struct *conn; NTSTATUS status; - if (!PyArg_ParseTuple(args, "si", &fname, &security_info_wanted)) + if (!PyArg_ParseTuple(args, "si|z", &fname, &security_info_wanted, &service)) { + TALLOC_FREE(tmp_ctx); return NULL; + } + + conn = get_conn(tmp_ctx, service); + if (!conn) { + TALLOC_FREE(tmp_ctx); + return NULL; + } - status = get_nt_acl_no_snum(tmp_ctx, fname, security_info_wanted, &sd); + status = get_nt_acl_conn(tmp_ctx, fname, conn, security_info_wanted, &sd); PyErr_NTSTATUS_IS_ERR_RAISE(status); py_sd = py_return_ndr_struct("samba.dcerpc.security", "descriptor", sd, sd); - talloc_free(tmp_ctx); + TALLOC_FREE(tmp_ctx); return py_sd; } @@ -515,24 +541,36 @@ static PyObject *py_smbd_get_nt_acl(PyObject *self, PyObject *args) */ static PyObject *py_smbd_set_sys_acl(PyObject *self, PyObject *args) { + TALLOC_CTX *frame = talloc_stackframe(); NTSTATUS status; - char *fname; + char *fname, *service = NULL; PyObject *py_acl; struct smb_acl_t *acl; int acl_type; + connection_struct *conn; - if (!PyArg_ParseTuple(args, "siO", &fname, &acl_type, &py_acl)) + if (!PyArg_ParseTuple(args, "siO|z", &fname, &acl_type, &py_acl, &service)) { + TALLOC_FREE(frame); return NULL; + } if (!py_check_dcerpc_type(py_acl, "samba.dcerpc.smb_acl", "t")) { + TALLOC_FREE(frame); + return NULL; + } + + conn = get_conn(frame, service); + if (!conn) { + TALLOC_FREE(frame); return NULL; } acl = pytalloc_get_type(py_acl, struct smb_acl_t); - status = set_sys_acl_no_snum(fname, acl_type, acl); + status = set_sys_acl_conn(fname, acl_type, acl, conn); PyErr_NTSTATUS_IS_ERR_RAISE(status); + TALLOC_FREE(frame); Py_RETURN_NONE; } @@ -546,48 +584,41 @@ static PyObject *py_smbd_get_sys_acl(PyObject *self, PyObject *args) struct smb_acl_t *acl; int acl_type; TALLOC_CTX *frame = talloc_stackframe(); + TALLOC_CTX *tmp_ctx = talloc_new(NULL); connection_struct *conn; NTSTATUS status = NT_STATUS_OK; - - if (!PyArg_ParseTuple(args, "si", &fname, &acl_type)) { - TALLOC_FREE(frame); + char *service = NULL; + if (!tmp_ctx) { + PyErr_NoMemory(); return NULL; } - conn = talloc_zero(frame, connection_struct); - if (conn == NULL) { - DEBUG(0, ("talloc failed\n")); - PyErr_NoMemory(); + if (!PyArg_ParseTuple(args, "si|z", &fname, &acl_type, &service)) { TALLOC_FREE(frame); + TALLOC_FREE(tmp_ctx); return NULL; } - if (!(conn->params = talloc(conn, struct share_params))) { - DEBUG(0,("get_nt_acl_no_snum: talloc() failed!\n")); - PyErr_NoMemory(); + conn = get_conn(frame, service); + if (!conn) { TALLOC_FREE(frame); + TALLOC_FREE(tmp_ctx); return NULL; } - conn->params->service = -1; - - set_conn_connectpath(conn, "/"); - - smbd_vfs_init(conn); - - acl = SMB_VFS_SYS_ACL_GET_FILE( conn, fname, acl_type, frame); + acl = SMB_VFS_SYS_ACL_GET_FILE( conn, fname, acl_type, tmp_ctx); if (!acl) { TALLOC_FREE(frame); + TALLOC_FREE(tmp_ctx); status = map_nt_error_from_unix_common(errno); DEBUG(0,("sys_acl_get_file returned NULL: %s\n", strerror(errno))); PyErr_NTSTATUS_IS_ERR_RAISE(status); } - conn_free(conn); - py_acl = py_return_ndr_struct("samba.dcerpc.smb_acl", "t", acl, acl); TALLOC_FREE(frame); + TALLOC_FREE(tmp_ctx); return py_acl; } |