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2003-04-01 Havoc Pennington <hp@redhat.com>

Browse source 
* bus/config-parser.c, bus/bus.c: implement <servicedir> and
	<includedir> (at least mostly)

	* dbus/dbus-sysdeps.c (_dbus_change_identity): set the group ID
	first, then the user ID
This commit is contained in:
Havoc Pennington 2003-04-02 00:29:33 +00:00
parent 44ed933284
commit cfa261b49d
9 changed files with 229 additions and 57 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2003-04-01 Havoc Pennington <hp@redhat.com>
* bus/config-parser.c, bus/bus.c: implement <servicedir> and
<includedir> (at least mostly)
* dbus/dbus-sysdeps.c (_dbus_change_identity): set the group ID
first, then the user ID
2003-04-01 Havoc Pennington <hp@pobox.com>
* dbus/dbus-server.c (dbus_server_set_auth_mechanisms): new

14
bus/activation.c
View file

@ -316,12 +316,12 @@ load_directory (BusActivation *activation,
BusActivation*
bus_activation_new (BusContext *context,
const DBusString *address,
const char **directories,
DBusList **directories,
DBusError *error)
{
int i;
BusActivation *activation;
DBusList *link;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
activation = dbus_new0 (BusActivation, 1);
@ -358,12 +358,12 @@ bus_activation_new (BusContext *context,
}
/* Load service files */
i = 0;
while (directories[i] != NULL)
link = _dbus_list_get_first_link (directories);
while (link != NULL)
{
if (!load_directory (activation, directories[i], error))
if (!load_directory (activation, link->data, error))
goto failed;
++i;
link = _dbus_list_get_next_link (directories, link);
}
return activation;

3
bus/activation.h
View file

@ -25,11 +25,12 @@
#define BUS_ACTIVATION_H
#include <dbus/dbus.h>
#include <dbus/dbus-list.h>
#include "bus.h"
BusActivation* bus_activation_new (BusContext *context,
const DBusString *address,
const char **paths,
DBusList **directories,
DBusError *error);
void bus_activation_ref (BusActivation *activation);
void bus_activation_unref (BusActivation *activation);

4
bus/bus.c
View file

@ -187,7 +187,6 @@ bus_context_new (const DBusString *config_file,
DBusList **addresses;
BusConfigParser *parser;
DBusString full_address;
const char *service_dirs[] = { NULL, NULL };
const char *user;
char **auth_mechanisms;
DBusList **auth_mechanisms_list;
@ -336,7 +335,8 @@ bus_context_new (const DBusString *config_file,
/* Create activation subsystem */
context->activation = bus_activation_new (context, &full_address,
service_dirs, error);
bus_config_parser_get_service_dirs (parser),
error);
if (context->activation == NULL)
{
_DBUS_ASSERT_ERROR_IS_SET (error);

223
bus/config-parser.c
View file

@ -38,7 +38,9 @@ typedef enum
ELEMENT_LIMIT,
ELEMENT_ALLOW,
ELEMENT_DENY,
ELEMENT_FORK
ELEMENT_FORK,
ELEMENT_SERVICEDIR,
ELEMENT_INCLUDEDIR
} ElementType;
typedef struct
@ -87,6 +89,8 @@ struct BusConfigParser
DBusList *listen_on; /**< List of addresses to listen to */
DBusList *mechanisms; /**< Auth mechanisms */
DBusList *service_dirs; /**< Directories to look for services in */
unsigned int fork : 1; /**< TRUE to fork into daemon mode */
};
@ -118,6 +122,10 @@ element_type_to_name (ElementType type)
return "deny";
case ELEMENT_FORK:
return "fork";
case ELEMENT_SERVICEDIR:
return "servicedir";
case ELEMENT_INCLUDEDIR:
return "includedir";
}
_dbus_assert_not_reached ("bad element type");
@ -210,6 +218,9 @@ merge_included (BusConfigParser *parser,
while ((link = _dbus_list_pop_first_link (&included->mechanisms)))
_dbus_list_append_link (&parser->mechanisms, link);
while ((link = _dbus_list_pop_first_link (&included->service_dirs)))
_dbus_list_append_link (&parser->service_dirs, link);
return TRUE;
}
@ -256,6 +267,12 @@ bus_config_parser_unref (BusConfigParser *parser)
_dbus_list_clear (&parser->listen_on);
_dbus_list_foreach (&parser->service_dirs,
(DBusForeachFunction) dbus_free,
NULL);
_dbus_list_clear (&parser->service_dirs);
dbus_free (parser);
}
}
@ -461,6 +478,32 @@ start_busconfig_child (BusConfigParser *parser,
return FALSE;
}
return TRUE;
}
else if (strcmp (element_name, "includedir") == 0)
{
if (!check_no_attributes (parser, "includedir", attribute_names, attribute_values, error))
return FALSE;
if (push_element (parser, ELEMENT_INCLUDEDIR) == NULL)
{
dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
return FALSE;
}
return TRUE;
}
else if (strcmp (element_name, "servicedir") == 0)
{
if (!check_no_attributes (parser, "servicedir", attribute_names, attribute_values, error))
return FALSE;
if (push_element (parser, ELEMENT_SERVICEDIR) == NULL)
{
dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
return FALSE;
}
return TRUE;
}
else if (strcmp (element_name, "include") == 0)
@ -681,6 +724,8 @@ bus_config_parser_end_element (BusConfigParser *parser,
case ELEMENT_USER:
case ELEMENT_LISTEN:
case ELEMENT_AUTH:
case ELEMENT_SERVICEDIR:
case ELEMENT_INCLUDEDIR:
if (!e->had_content)
{
dbus_set_error (error, DBUS_ERROR_FAILED,
@ -714,6 +759,112 @@ all_whitespace (const DBusString *str)
return i == _dbus_string_get_length (str);
}
static dbus_bool_t
include_file (BusConfigParser *parser,
const DBusString *filename,
dbus_bool_t ignore_missing,
DBusError *error)
{
/* FIXME good test case for this would load each config file in the
* test suite both alone, and as an include, and check
* that the result is the same
*/
BusConfigParser *included;
DBusError tmp_error;
dbus_error_init (&tmp_error);
included = bus_config_load (filename, &tmp_error);
if (included == NULL)
{
_DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
if (dbus_error_has_name (&tmp_error, DBUS_ERROR_FILE_NOT_FOUND) &&
ignore_missing)
{
dbus_error_free (&tmp_error);
return TRUE;
}
else
{
dbus_move_error (&tmp_error, error);
return FALSE;
}
}
else
{
_DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
if (!merge_included (parser, included, error))
{
bus_config_parser_unref (included);
return FALSE;
}
bus_config_parser_unref (included);
return TRUE;
}
}
static dbus_bool_t
include_dir (BusConfigParser *parser,
const DBusString *dirname,
DBusError *error)
{
DBusString filename;
dbus_bool_t retval;
DBusError tmp_error;
DBusDirIter *dir;
if (!_dbus_string_init (&filename))
{
dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
return FALSE;
}
retval = FALSE;
dir = _dbus_directory_open (dirname, error);
/* FIXME this is just so the tests pass for now, it needs to come out
* once I implement make-dirname-relative-to-currently-parsed-files-dir
*/
if (dir == NULL)
{
if (error)
dbus_error_free (error);
_dbus_string_free (&filename);
return TRUE;
}
if (dir == NULL)
goto failed;
while (_dbus_directory_get_next_file (dir, &filename, &tmp_error))
{
if (_dbus_string_ends_with_c_str (&filename, ".conf"))
{
if (!include_file (parser, &filename, TRUE, error))
goto failed;
}
}
if (dbus_error_is_set (&tmp_error))
{
dbus_move_error (&tmp_error, error);
goto failed;
}
retval = TRUE;
failed:
_dbus_string_free (&filename);
if (dir)
_dbus_directory_close (dir);
return retval;
}
dbus_bool_t
bus_config_parser_content (BusConfigParser *parser,
const DBusString *content,
@ -770,45 +921,23 @@ bus_config_parser_content (BusConfigParser *parser,
case ELEMENT_INCLUDE:
{
/* FIXME good test case for this would load each config file in the
* test suite both alone, and as an include, and check
* that the result is the same
*/
BusConfigParser *included;
DBusError tmp_error;
e->had_content = TRUE;
dbus_error_init (&tmp_error);
included = bus_config_load (content, &tmp_error);
if (included == NULL)
{
_DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
if (dbus_error_has_name (&tmp_error, DBUS_ERROR_FILE_NOT_FOUND) &&
e->d.include.ignore_missing)
{
dbus_error_free (&tmp_error);
return TRUE;
}
else
{
dbus_move_error (&tmp_error, error);
return FALSE;
}
}
else
{
_DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
if (!merge_included (parser, included, error))
return FALSE;
bus_config_parser_unref (included);
return TRUE;
}
if (!include_file (parser, content,
e->d.include.ignore_missing, error))
return FALSE;
}
break;
case ELEMENT_INCLUDEDIR:
{
e->had_content = TRUE;
if (!include_dir (parser, content, error))
return FALSE;
}
break;
case ELEMENT_USER:
{
char *s;
@ -858,6 +987,24 @@ bus_config_parser_content (BusConfigParser *parser,
}
}
break;
case ELEMENT_SERVICEDIR:
{
char *s;
e->had_content = TRUE;
if (!_dbus_string_copy_data (content, &s))
goto nomem;
if (!_dbus_list_append (&parser->service_dirs,
s))
{
dbus_free (s);
goto nomem;
}
}
break;
}
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
@ -911,6 +1058,12 @@ bus_config_parser_get_mechanisms (BusConfigParser *parser)
return &parser->mechanisms;
}
DBusList**
bus_config_parser_get_service_dirs (BusConfigParser *parser)
{
return &parser->service_dirs;
}
dbus_bool_t
bus_config_parser_get_fork (BusConfigParser *parser)
{

9
bus/config-parser.h
View file

@ -55,10 +55,11 @@ dbus_bool_t bus_config_parser_finished (BusConfigParser *parser,
DBusError *error);
/* Functions for extracting the parse results */
const char* bus_config_parser_get_user (BusConfigParser *parser);
DBusList** bus_config_parser_get_addresses (BusConfigParser *parser);
DBusList** bus_config_parser_get_mechanisms (BusConfigParser *parser);
dbus_bool_t bus_config_parser_get_fork (BusConfigParser *parser);
const char* bus_config_parser_get_user (BusConfigParser *parser);
DBusList** bus_config_parser_get_addresses (BusConfigParser *parser);
DBusList** bus_config_parser_get_mechanisms (BusConfigParser *parser);
dbus_bool_t bus_config_parser_get_fork (BusConfigParser *parser);
DBusList** bus_config_parser_get_service_dirs (BusConfigParser *parser);
/* Loader functions (backended off one of the XML parsers). Returns a
* finished ConfigParser.

4
dbus/dbus-keyring.c
View file

@ -41,6 +41,10 @@
* file in the user's homedir. However they are transient (only used
* by a single server instance for a fixed period of time, then
* discarded). Also, the keys are not sent over the wire.
*
* @todo there's a memory leak on some codepath in here, I saw it once
* when running make check - probably some specific initial cookies
* present in the cookie file, then depending on what we do with them.
*/
/**

19
dbus/dbus-sysdeps.c
View file

@ -3185,14 +3185,9 @@ _dbus_change_identity (unsigned long uid,
unsigned long gid,
DBusError *error)
{
if (setuid (uid) < 0)
{
dbus_set_error (error, _dbus_error_from_errno (errno),
"Failed to set UID to %lu: %s", uid,
_dbus_strerror (errno));
return FALSE;
}
/* Set GID first, or the setuid may remove our permission
* to change the GID
*/
if (setgid (gid) < 0)
{
dbus_set_error (error, _dbus_error_from_errno (errno),
@ -3201,6 +3196,14 @@ _dbus_change_identity (unsigned long uid,
return FALSE;
}
if (setuid (uid) < 0)
{
dbus_set_error (error, _dbus_error_from_errno (errno),
"Failed to set UID to %lu: %s", uid,
_dbus_strerror (errno));
return FALSE;
}
return TRUE;
}

2
test/data/valid-config-files/basic.conf
View file

@ -4,6 +4,8 @@
<user>mybususer</user>
<listen>unix:path=/foo/bar</listen>
<listen>tcp:port=1234</listen>
<includedir>basic.d</includedir>
<servicedir>/usr/share/foo</servicedir>
<include ignore_missing="yes">nonexistent.conf</include>
<policy context="default">
<allow user="*"/>