diff options
Diffstat (limited to 'src/3rd_party/dbus-1.7.8/bus/config-parser.c')
| -rw-r--r-- | src/3rd_party/dbus-1.7.8/bus/config-parser.c | 3641 |
1 files changed, 0 insertions, 3641 deletions
diff --git a/src/3rd_party/dbus-1.7.8/bus/config-parser.c b/src/3rd_party/dbus-1.7.8/bus/config-parser.c deleted file mode 100644 index 12a2d2e7bf..0000000000 --- a/src/3rd_party/dbus-1.7.8/bus/config-parser.c +++ /dev/null @@ -1,3641 +0,0 @@ -/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ -/* config-parser.c XML-library-agnostic configuration file parser - * - * Copyright (C) 2003, 2004 Red Hat, Inc. - * - * Licensed under the Academic Free License version 2.1 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - */ - -#include <config.h> -#include "config-parser-common.h" -#include "config-parser.h" -#include "test.h" -#include "utils.h" -#include "policy.h" -#include "selinux.h" -#include <dbus/dbus-list.h> -#include <dbus/dbus-internals.h> -#include <dbus/dbus-misc.h> -#include <dbus/dbus-sysdeps.h> -#include <string.h> - -typedef enum -{ - /* we ignore policies for unknown groups/users */ - POLICY_IGNORED, - - /* non-ignored */ - POLICY_DEFAULT, - POLICY_MANDATORY, - POLICY_USER, - POLICY_GROUP, - POLICY_CONSOLE -} PolicyType; - -typedef struct -{ - ElementType type; - - unsigned int had_content : 1; - - union - { - struct - { - unsigned int ignore_missing : 1; - unsigned int if_selinux_enabled : 1; - unsigned int selinux_root_relative : 1; - } include; - - struct - { - PolicyType type; - unsigned long gid_uid_or_at_console; - } policy; - - struct - { - char *name; - long value; - } limit; - - } d; - -} Element; - -/** - * Parser for bus configuration file. - */ -struct BusConfigParser -{ - int refcount; /**< Reference count */ - - DBusString basedir; /**< Directory we resolve paths relative to */ - - DBusList *stack; /**< stack of Element */ - - char *user; /**< user to run as */ - - char *servicehelper; /**< location of the setuid helper */ - - char *bus_type; /**< Message bus type */ - - DBusList *listen_on; /**< List of addresses to listen to */ - - DBusList *mechanisms; /**< Auth mechanisms */ - - DBusList *service_dirs; /**< Directories to look for session services in */ - - DBusList *conf_dirs; /**< Directories to look for policy configuration in */ - - BusPolicy *policy; /**< Security policy */ - - BusLimits limits; /**< Limits */ - - char *pidfile; /**< PID file */ - - DBusList *included_files; /**< Included files stack */ - - DBusHashTable *service_context_table; /**< Map service names to SELinux contexts */ - - unsigned int fork : 1; /**< TRUE to fork into daemon mode */ - - unsigned int syslog : 1; /**< TRUE to enable syslog */ - unsigned int keep_umask : 1; /**< TRUE to keep original umask when forking */ - - unsigned int is_toplevel : 1; /**< FALSE if we are a sub-config-file inside another one */ - - unsigned int allow_anonymous : 1; /**< TRUE to allow anonymous connections */ -}; - -static Element* -push_element (BusConfigParser *parser, - ElementType type) -{ - Element *e; - - _dbus_assert (type != ELEMENT_NONE); - - e = dbus_new0 (Element, 1); - if (e == NULL) - return NULL; - - if (!_dbus_list_append (&parser->stack, e)) - { - dbus_free (e); - return NULL; - } - - e->type = type; - - return e; -} - -static void -element_free (Element *e) -{ - if (e->type == ELEMENT_LIMIT) - dbus_free (e->d.limit.name); - - dbus_free (e); -} - -static void -pop_element (BusConfigParser *parser) -{ - Element *e; - - e = _dbus_list_pop_last (&parser->stack); - - element_free (e); -} - -static Element* -peek_element (BusConfigParser *parser) -{ - Element *e; - - e = _dbus_list_get_last (&parser->stack); - - return e; -} - -static ElementType -top_element_type (BusConfigParser *parser) -{ - Element *e; - - e = _dbus_list_get_last (&parser->stack); - - if (e) - return e->type; - else - return ELEMENT_NONE; -} - -static dbus_bool_t -merge_service_context_hash (DBusHashTable *dest, - DBusHashTable *from) -{ - DBusHashIter iter; - char *service_copy; - char *context_copy; - - service_copy = NULL; - context_copy = NULL; - - _dbus_hash_iter_init (from, &iter); - while (_dbus_hash_iter_next (&iter)) - { - const char *service = _dbus_hash_iter_get_string_key (&iter); - const char *context = _dbus_hash_iter_get_value (&iter); - - service_copy = _dbus_strdup (service); - if (service_copy == NULL) - goto fail; - context_copy = _dbus_strdup (context); - if (context_copy == NULL) - goto fail; - - if (!_dbus_hash_table_insert_string (dest, service_copy, context_copy)) - goto fail; - - service_copy = NULL; - context_copy = NULL; - } - - return TRUE; - - fail: - if (service_copy) - dbus_free (service_copy); - - if (context_copy) - dbus_free (context_copy); - - return FALSE; -} - -static dbus_bool_t -service_dirs_find_dir (DBusList **service_dirs, - const char *dir) -{ - DBusList *link; - - _dbus_assert (dir != NULL); - - for (link = *service_dirs; link; link = _dbus_list_get_next_link(service_dirs, link)) - { - const char *link_dir; - - link_dir = (const char *)link->data; - if (strcmp (dir, link_dir) == 0) - return TRUE; - } - - return FALSE; -} - -static dbus_bool_t -service_dirs_append_unique_or_free (DBusList **service_dirs, - char *dir) -{ - if (!service_dirs_find_dir (service_dirs, dir)) - return _dbus_list_append (service_dirs, dir); - - dbus_free (dir); - return TRUE; -} - -static void -service_dirs_append_link_unique_or_free (DBusList **service_dirs, - DBusList *dir_link) -{ - if (!service_dirs_find_dir (service_dirs, dir_link->data)) - { - _dbus_list_append_link (service_dirs, dir_link); - } - else - { - dbus_free (dir_link->data); - _dbus_list_free_link (dir_link); - } -} - -static dbus_bool_t -merge_included (BusConfigParser *parser, - BusConfigParser *included, - DBusError *error) -{ - DBusList *link; - - if (!bus_policy_merge (parser->policy, - included->policy)) - { - BUS_SET_OOM (error); - return FALSE; - } - - if (!merge_service_context_hash (parser->service_context_table, - included->service_context_table)) - { - BUS_SET_OOM (error); - return FALSE; - } - - if (included->user != NULL) - { - dbus_free (parser->user); - parser->user = included->user; - included->user = NULL; - } - - if (included->bus_type != NULL) - { - dbus_free (parser->bus_type); - parser->bus_type = included->bus_type; - included->bus_type = NULL; - } - - if (included->fork) - parser->fork = TRUE; - - if (included->keep_umask) - parser->keep_umask = TRUE; - - if (included->pidfile != NULL) - { - dbus_free (parser->pidfile); - parser->pidfile = included->pidfile; - included->pidfile = NULL; - } - - if (included->servicehelper != NULL) - { - dbus_free (parser->servicehelper); - parser->servicehelper = included->servicehelper; - included->servicehelper = NULL; - } - - while ((link = _dbus_list_pop_first_link (&included->listen_on))) - _dbus_list_append_link (&parser->listen_on, link); - - 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))) - service_dirs_append_link_unique_or_free (&parser->service_dirs, link); - - while ((link = _dbus_list_pop_first_link (&included->conf_dirs))) - _dbus_list_append_link (&parser->conf_dirs, link); - - return TRUE; -} - -static dbus_bool_t -seen_include (BusConfigParser *parser, - const DBusString *file) -{ - DBusList *iter; - - iter = parser->included_files; - while (iter != NULL) - { - if (! strcmp (_dbus_string_get_const_data (file), iter->data)) - return TRUE; - - iter = _dbus_list_get_next_link (&parser->included_files, iter); - } - - return FALSE; -} - -BusConfigParser* -bus_config_parser_new (const DBusString *basedir, - dbus_bool_t is_toplevel, - const BusConfigParser *parent) -{ - BusConfigParser *parser; - - parser = dbus_new0 (BusConfigParser, 1); - if (parser == NULL) - return NULL; - - parser->is_toplevel = !!is_toplevel; - - if (!_dbus_string_init (&parser->basedir)) - { - dbus_free (parser); - return NULL; - } - - if (((parser->policy = bus_policy_new ()) == NULL) || - !_dbus_string_copy (basedir, 0, &parser->basedir, 0) || - ((parser->service_context_table = _dbus_hash_table_new (DBUS_HASH_STRING, - dbus_free, - dbus_free)) == NULL)) - { - if (parser->policy) - bus_policy_unref (parser->policy); - - _dbus_string_free (&parser->basedir); - - dbus_free (parser); - return NULL; - } - - if (parent != NULL) - { - /* Initialize the parser's limits from the parent. */ - parser->limits = parent->limits; - - /* Use the parent's list of included_files to avoid - circular inclusions. */ - parser->included_files = parent->included_files; - } - else - { - - /* Make up some numbers! woot! */ - parser->limits.max_incoming_bytes = _DBUS_ONE_MEGABYTE * 127; - parser->limits.max_outgoing_bytes = _DBUS_ONE_MEGABYTE * 127; - parser->limits.max_message_size = _DBUS_ONE_MEGABYTE * 32; - - /* We set relatively conservative values here since due to the - way SCM_RIGHTS works we need to preallocate an array for the - maximum number of file descriptors we can receive. Picking a - high value here thus translates directly to more memory - allocation. */ - parser->limits.max_incoming_unix_fds = DBUS_DEFAULT_MESSAGE_UNIX_FDS*4; - parser->limits.max_outgoing_unix_fds = DBUS_DEFAULT_MESSAGE_UNIX_FDS*4; - parser->limits.max_message_unix_fds = DBUS_DEFAULT_MESSAGE_UNIX_FDS; - - /* Making this long means the user has to wait longer for an error - * message if something screws up, but making it too short means - * they might see a false failure. - */ - parser->limits.activation_timeout = 25000; /* 25 seconds */ - - /* Making this long risks making a DOS attack easier, but too short - * and legitimate auth will fail. If interactive auth (ask user for - * password) is allowed, then potentially it has to be quite long. - */ - parser->limits.auth_timeout = 30000; /* 30 seconds */ - - parser->limits.max_incomplete_connections = 64; - parser->limits.max_connections_per_user = 256; - - /* Note that max_completed_connections / max_connections_per_user - * is the number of users that would have to work together to - * DOS all the other users. - */ - parser->limits.max_completed_connections = 2048; - - parser->limits.max_pending_activations = 512; - parser->limits.max_services_per_connection = 512; - - /* For this one, keep in mind that it isn't only the memory used - * by the match rules, but slowdown from linearly walking a big - * list of them. A client adding more than this is almost - * certainly a bad idea for that reason, and should change to a - * smaller number of wider-net match rules - getting every last - * message to the bus is probably better than having a thousand - * match rules. - */ - parser->limits.max_match_rules_per_connection = 512; - - parser->limits.reply_timeout = -1; /* never */ - - /* this is effectively a limit on message queue size for messages - * that require a reply - */ - parser->limits.max_replies_per_connection = 1024*8; - } - - parser->refcount = 1; - - return parser; -} - -BusConfigParser * -bus_config_parser_ref (BusConfigParser *parser) -{ - _dbus_assert (parser->refcount > 0); - - parser->refcount += 1; - - return parser; -} - -void -bus_config_parser_unref (BusConfigParser *parser) -{ - _dbus_assert (parser->refcount > 0); - - parser->refcount -= 1; - - if (parser->refcount == 0) - { - while (parser->stack != NULL) - pop_element (parser); - - dbus_free (parser->user); - dbus_free (parser->servicehelper); - dbus_free (parser->bus_type); - dbus_free (parser->pidfile); - - _dbus_list_foreach (&parser->listen_on, - (DBusForeachFunction) dbus_free, - NULL); - - _dbus_list_clear (&parser->listen_on); - - _dbus_list_foreach (&parser->service_dirs, - (DBusForeachFunction) dbus_free, - NULL); - - _dbus_list_clear (&parser->service_dirs); - - _dbus_list_foreach (&parser->conf_dirs, - (DBusForeachFunction) dbus_free, - NULL); - - _dbus_list_clear (&parser->conf_dirs); - - _dbus_list_foreach (&parser->mechanisms, - (DBusForeachFunction) dbus_free, - NULL); - - _dbus_list_clear (&parser->mechanisms); - - _dbus_string_free (&parser->basedir); - - if (parser->policy) - bus_policy_unref (parser->policy); - - if (parser->service_context_table) - _dbus_hash_table_unref (parser->service_context_table); - - dbus_free (parser); - } -} - -dbus_bool_t -bus_config_parser_check_doctype (BusConfigParser *parser, - const char *doctype, - DBusError *error) -{ - _DBUS_ASSERT_ERROR_IS_CLEAR (error); - - if (strcmp (doctype, "busconfig") != 0) - { - dbus_set_error (error, - DBUS_ERROR_FAILED, - "Configuration file has the wrong document type %s", - doctype); - return FALSE; - } - else - return TRUE; -} - -typedef struct -{ - const char *name; - const char **retloc; -} LocateAttr; - -static dbus_bool_t -locate_attributes (BusConfigParser *parser, - const char *element_name, - const char **attribute_names, - const char **attribute_values, - DBusError *error, - const char *first_attribute_name, - const char **first_attribute_retloc, - ...) -{ - va_list args; - const char *name; - const char **retloc; - int n_attrs; -#define MAX_ATTRS 24 - LocateAttr attrs[MAX_ATTRS]; - dbus_bool_t retval; - int i; - - _dbus_assert (first_attribute_name != NULL); - _dbus_assert (first_attribute_retloc != NULL); - - retval = TRUE; - - n_attrs = 1; - attrs[0].name = first_attribute_name; - attrs[0].retloc = first_attribute_retloc; - *first_attribute_retloc = NULL; - - va_start (args, first_attribute_retloc); - - name = va_arg (args, const char*); - retloc = va_arg (args, const char**); - - while (name != NULL) - { - _dbus_assert (retloc != NULL); - _dbus_assert (n_attrs < MAX_ATTRS); - - attrs[n_attrs].name = name; - attrs[n_attrs].retloc = retloc; - n_attrs += 1; - *retloc = NULL; - - name = va_arg (args, const char*); - retloc = va_arg (args, const char**); - } - - va_end (args); - - i = 0; - while (attribute_names[i]) - { - int j; - dbus_bool_t found; - - found = FALSE; - j = 0; - while (j < n_attrs) - { - if (strcmp (attrs[j].name, attribute_names[i]) == 0) - { - retloc = attrs[j].retloc; - - if (*retloc != NULL) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Attribute \"%s\" repeated twice on the same <%s> element", - attrs[j].name, element_name); - retval = FALSE; - goto out; - } - - *retloc = attribute_values[i]; - found = TRUE; - } - - ++j; - } - - if (!found) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Attribute \"%s\" is invalid on <%s> element in this context", - attribute_names[i], element_name); - retval = FALSE; - goto out; - } - - ++i; - } - - out: - return retval; -} - -static dbus_bool_t -check_no_attributes (BusConfigParser *parser, - const char *element_name, - const char **attribute_names, - const char **attribute_values, - DBusError *error) -{ - if (attribute_names[0] != NULL) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Attribute \"%s\" is invalid on <%s> element in this context", - attribute_names[0], element_name); - return FALSE; - } - - return TRUE; -} - -static dbus_bool_t -start_busconfig_child (BusConfigParser *parser, - const char *element_name, - const char **attribute_names, - const char **attribute_values, - DBusError *error) -{ - ElementType element_type; - - element_type = bus_config_parser_element_name_to_type (element_name); - - if (element_type == ELEMENT_USER) - { - if (!check_no_attributes (parser, "user", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_USER) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (element_type == ELEMENT_CONFIGTYPE) - { - if (!check_no_attributes (parser, "type", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_CONFIGTYPE) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (element_type == ELEMENT_FORK) - { - if (!check_no_attributes (parser, "fork", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_FORK) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - parser->fork = TRUE; - - return TRUE; - } - else if (element_type == ELEMENT_SYSLOG) - { - if (!check_no_attributes (parser, "syslog", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_SYSLOG) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - parser->syslog = TRUE; - - return TRUE; - } - else if (element_type == ELEMENT_KEEP_UMASK) - { - if (!check_no_attributes (parser, "keep_umask", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_KEEP_UMASK) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - parser->keep_umask = TRUE; - - return TRUE; - } - else if (element_type == ELEMENT_PIDFILE) - { - if (!check_no_attributes (parser, "pidfile", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_PIDFILE) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (element_type == ELEMENT_LISTEN) - { - if (!check_no_attributes (parser, "listen", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_LISTEN) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (element_type == ELEMENT_AUTH) - { - if (!check_no_attributes (parser, "auth", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_AUTH) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (element_type == ELEMENT_SERVICEHELPER) - { - if (!check_no_attributes (parser, "servicehelper", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_SERVICEHELPER) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (element_type == ELEMENT_INCLUDEDIR) - { - if (!check_no_attributes (parser, "includedir", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_INCLUDEDIR) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (element_type == ELEMENT_STANDARD_SESSION_SERVICEDIRS) - { - DBusList *link; - DBusList *dirs; - dirs = NULL; - - if (!check_no_attributes (parser, "standard_session_servicedirs", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_STANDARD_SESSION_SERVICEDIRS) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - if (!_dbus_get_standard_session_servicedirs (&dirs)) - { - BUS_SET_OOM (error); - return FALSE; - } - - while ((link = _dbus_list_pop_first_link (&dirs))) - service_dirs_append_link_unique_or_free (&parser->service_dirs, link); - - return TRUE; - } - else if (element_type == ELEMENT_STANDARD_SYSTEM_SERVICEDIRS) - { - DBusList *link; - DBusList *dirs; - dirs = NULL; - - if (!check_no_attributes (parser, "standard_system_servicedirs", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_STANDARD_SYSTEM_SERVICEDIRS) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - if (!_dbus_get_standard_system_servicedirs (&dirs)) - { - BUS_SET_OOM (error); - return FALSE; - } - - while ((link = _dbus_list_pop_first_link (&dirs))) - service_dirs_append_link_unique_or_free (&parser->service_dirs, link); - - return TRUE; - } - else if (element_type == ELEMENT_ALLOW_ANONYMOUS) - { - if (!check_no_attributes (parser, "allow_anonymous", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_ALLOW_ANONYMOUS) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - parser->allow_anonymous = TRUE; - return TRUE; - } - else if (element_type == ELEMENT_SERVICEDIR) - { - if (!check_no_attributes (parser, "servicedir", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_SERVICEDIR) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (element_type == ELEMENT_INCLUDE) - { - Element *e; - const char *if_selinux_enabled; - const char *ignore_missing; - const char *selinux_root_relative; - - if ((e = push_element (parser, ELEMENT_INCLUDE)) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - e->d.include.ignore_missing = FALSE; - e->d.include.if_selinux_enabled = FALSE; - e->d.include.selinux_root_relative = FALSE; - - if (!locate_attributes (parser, "include", - attribute_names, - attribute_values, - error, - "ignore_missing", &ignore_missing, - "if_selinux_enabled", &if_selinux_enabled, - "selinux_root_relative", &selinux_root_relative, - NULL)) - return FALSE; - - if (ignore_missing != NULL) - { - if (strcmp (ignore_missing, "yes") == 0) - e->d.include.ignore_missing = TRUE; - else if (strcmp (ignore_missing, "no") == 0) - e->d.include.ignore_missing = FALSE; - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "ignore_missing attribute must have value \"yes\" or \"no\""); - return FALSE; - } - } - - if (if_selinux_enabled != NULL) - { - if (strcmp (if_selinux_enabled, "yes") == 0) - e->d.include.if_selinux_enabled = TRUE; - else if (strcmp (if_selinux_enabled, "no") == 0) - e->d.include.if_selinux_enabled = FALSE; - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "if_selinux_enabled attribute must have value" - " \"yes\" or \"no\""); - return FALSE; - } - } - - if (selinux_root_relative != NULL) - { - if (strcmp (selinux_root_relative, "yes") == 0) - e->d.include.selinux_root_relative = TRUE; - else if (strcmp (selinux_root_relative, "no") == 0) - e->d.include.selinux_root_relative = FALSE; - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "selinux_root_relative attribute must have value" - " \"yes\" or \"no\""); - return FALSE; - } - } - - return TRUE; - } - else if (element_type == ELEMENT_POLICY) - { - Element *e; - const char *context; - const char *user; - const char *group; - const char *at_console; - - if ((e = push_element (parser, ELEMENT_POLICY)) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - e->d.policy.type = POLICY_IGNORED; - - if (!locate_attributes (parser, "policy", - attribute_names, - attribute_values, - error, - "context", &context, - "user", &user, - "group", &group, - "at_console", &at_console, - NULL)) - return FALSE; - - if (((context && user) || - (context && group) || - (context && at_console)) || - ((user && group) || - (user && at_console)) || - (group && at_console) || - !(context || user || group || at_console)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "<policy> element must have exactly one of (context|user|group|at_console) attributes"); - return FALSE; - } - - if (context != NULL) - { - if (strcmp (context, "default") == 0) - { - e->d.policy.type = POLICY_DEFAULT; - } - else if (strcmp (context, "mandatory") == 0) - { - e->d.policy.type = POLICY_MANDATORY; - } - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "context attribute on <policy> must have the value \"default\" or \"mandatory\", not \"%s\"", - context); - return FALSE; - } - } - else if (user != NULL) - { - DBusString username; - _dbus_string_init_const (&username, user); - - if (_dbus_parse_unix_user_from_config (&username, - &e->d.policy.gid_uid_or_at_console)) - e->d.policy.type = POLICY_USER; - else - _dbus_warn ("Unknown username \"%s\" in message bus configuration file\n", - user); - } - else if (group != NULL) - { - DBusString group_name; - _dbus_string_init_const (&group_name, group); - - if (_dbus_parse_unix_group_from_config (&group_name, - &e->d.policy.gid_uid_or_at_console)) - e->d.policy.type = POLICY_GROUP; - else - _dbus_warn ("Unknown group \"%s\" in message bus configuration file\n", - group); - } - else if (at_console != NULL) - { - dbus_bool_t t; - t = (strcmp (at_console, "true") == 0); - if (t || strcmp (at_console, "false") == 0) - { - e->d.policy.gid_uid_or_at_console = t; - e->d.policy.type = POLICY_CONSOLE; - } - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Unknown value \"%s\" for at_console in message bus configuration file", - at_console); - - return FALSE; - } - } - else - { - _dbus_assert_not_reached ("all <policy> attributes null and we didn't set error"); - } - - return TRUE; - } - else if (element_type == ELEMENT_LIMIT) - { - Element *e; - const char *name; - - if ((e = push_element (parser, ELEMENT_LIMIT)) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - if (!locate_attributes (parser, "limit", - attribute_names, - attribute_values, - error, - "name", &name, - NULL)) - return FALSE; - - if (name == NULL) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "<limit> element must have a \"name\" attribute"); - return FALSE; - } - - e->d.limit.name = _dbus_strdup (name); - if (e->d.limit.name == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (element_type == ELEMENT_SELINUX) - { - if (!check_no_attributes (parser, "selinux", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_SELINUX) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Element <%s> not allowed inside <%s> in configuration file", - element_name, "busconfig"); - return FALSE; - } -} - -static dbus_bool_t -append_rule_from_element (BusConfigParser *parser, - const char *element_name, - const char **attribute_names, - const char **attribute_values, - dbus_bool_t allow, - DBusError *error) -{ - const char *log; - const char *send_interface; - const char *send_member; - const char *send_error; - const char *send_destination; - const char *send_path; - const char *send_type; - const char *receive_interface; - const char *receive_member; - const char *receive_error; - const char *receive_sender; - const char *receive_path; - const char *receive_type; - const char *eavesdrop; - const char *send_requested_reply; - const char *receive_requested_reply; - const char *own; - const char *own_prefix; - const char *user; - const char *group; - - BusPolicyRule *rule; - - if (!locate_attributes (parser, element_name, - attribute_names, - attribute_values, - error, - "send_interface", &send_interface, - "send_member", &send_member, - "send_error", &send_error, - "send_destination", &send_destination, - "send_path", &send_path, - "send_type", &send_type, - "receive_interface", &receive_interface, - "receive_member", &receive_member, - "receive_error", &receive_error, - "receive_sender", &receive_sender, - "receive_path", &receive_path, - "receive_type", &receive_type, - "eavesdrop", &eavesdrop, - "send_requested_reply", &send_requested_reply, - "receive_requested_reply", &receive_requested_reply, - "own", &own, - "own_prefix", &own_prefix, - "user", &user, - "group", &group, - "log", &log, - NULL)) - return FALSE; - - if (!(send_interface || send_member || send_error || send_destination || - send_type || send_path || - receive_interface || receive_member || receive_error || receive_sender || - receive_type || receive_path || eavesdrop || - send_requested_reply || receive_requested_reply || - own || own_prefix || user || group)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Element <%s> must have one or more attributes", - element_name); - return FALSE; - } - - if ((send_member && (send_interface == NULL && send_path == NULL)) || - (receive_member && (receive_interface == NULL && receive_path == NULL))) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "On element <%s>, if you specify a member you must specify an interface or a path. Keep in mind that not all messages have an interface field.", - element_name); - return FALSE; - } - - /* Allowed combinations of elements are: - * - * base, must be all send or all receive: - * nothing - * interface - * interface + member - * error - * - * base send_ can combine with send_destination, send_path, send_type, send_requested_reply - * base receive_ with receive_sender, receive_path, receive_type, receive_requested_reply, eavesdrop - * - * user, group, own, own_prefix must occur alone - * - * Pretty sure the below stuff is broken, FIXME think about it more. - */ - - if ((send_interface && (send_error || - receive_interface || - receive_member || - receive_error || - receive_sender || - receive_requested_reply || - own || own_prefix || - user || - group)) || - - (send_member && (send_error || - receive_interface || - receive_member || - receive_error || - receive_sender || - receive_requested_reply || - own || own_prefix || - user || - group)) || - - (send_error && (receive_interface || - receive_member || - receive_error || - receive_sender || - receive_requested_reply || - own || own_prefix || - user || - group)) || - - (send_destination && (receive_interface || - receive_member || - receive_error || - receive_sender || - receive_requested_reply || - own || own_prefix || - user || - group)) || - - (send_type && (receive_interface || - receive_member || - receive_error || - receive_sender || - receive_requested_reply || - own || own_prefix || - user || - group)) || - - (send_path && (receive_interface || - receive_member || - receive_error || - receive_sender || - receive_requested_reply || - own || own_prefix || - user || - group)) || - - (send_requested_reply && (receive_interface || - receive_member || - receive_error || - receive_sender || - receive_requested_reply || - own || own_prefix || - user || - group)) || - - (receive_interface && (receive_error || - own || own_prefix || - user || - group)) || - - (receive_member && (receive_error || - own || own_prefix || - user || - group)) || - - (receive_error && (own || own_prefix || - user || - group)) || - - (eavesdrop && (own || own_prefix || - user || - group)) || - - (receive_requested_reply && (own || own_prefix || - user || - group)) || - - (own && (own_prefix || user || group)) || - - (own_prefix && (own || user || group)) || - - (user && group)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Invalid combination of attributes on element <%s>", - element_name); - return FALSE; - } - - rule = NULL; - - /* In BusPolicyRule, NULL represents wildcard. - * In the config file, '*' represents it. - */ -#define IS_WILDCARD(str) ((str) && ((str)[0]) == '*' && ((str)[1]) == '\0') - - if (send_interface || send_member || send_error || send_destination || - send_path || send_type || send_requested_reply) - { - int message_type; - - if (IS_WILDCARD (send_interface)) - send_interface = NULL; - if (IS_WILDCARD (send_member)) - send_member = NULL; - if (IS_WILDCARD (send_error)) - send_error = NULL; - if (IS_WILDCARD (send_destination)) - send_destination = NULL; - if (IS_WILDCARD (send_path)) - send_path = NULL; - if (IS_WILDCARD (send_type)) - send_type = NULL; - - message_type = DBUS_MESSAGE_TYPE_INVALID; - if (send_type != NULL) - { - message_type = dbus_message_type_from_string (send_type); - if (message_type == DBUS_MESSAGE_TYPE_INVALID) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Bad message type \"%s\"", - send_type); - return FALSE; - } - } - - if (eavesdrop && - !(strcmp (eavesdrop, "true") == 0 || - strcmp (eavesdrop, "false") == 0)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Bad value \"%s\" for %s attribute, must be true or false", - "eavesdrop", eavesdrop); - return FALSE; - } - - if (send_requested_reply && - !(strcmp (send_requested_reply, "true") == 0 || - strcmp (send_requested_reply, "false") == 0)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Bad value \"%s\" for %s attribute, must be true or false", - "send_requested_reply", send_requested_reply); - return FALSE; - } - - rule = bus_policy_rule_new (BUS_POLICY_RULE_SEND, allow); - if (rule == NULL) - goto nomem; - - if (eavesdrop) - rule->d.send.eavesdrop = (strcmp (eavesdrop, "true") == 0); - - if (log) - rule->d.send.log = (strcmp (log, "true") == 0); - - if (send_requested_reply) - rule->d.send.requested_reply = (strcmp (send_requested_reply, "true") == 0); - - rule->d.send.message_type = message_type; - rule->d.send.path = _dbus_strdup (send_path); - rule->d.send.interface = _dbus_strdup (send_interface); - rule->d.send.member = _dbus_strdup (send_member); - rule->d.send.error = _dbus_strdup (send_error); - rule->d.send.destination = _dbus_strdup (send_destination); - if (send_path && rule->d.send.path == NULL) - goto nomem; - if (send_interface && rule->d.send.interface == NULL) - goto nomem; - if (send_member && rule->d.send.member == NULL) - goto nomem; - if (send_error && rule->d.send.error == NULL) - goto nomem; - if (send_destination && rule->d.send.destination == NULL) - goto nomem; - } - else if (receive_interface || receive_member || receive_error || receive_sender || - receive_path || receive_type || eavesdrop || receive_requested_reply) - { - int message_type; - - if (IS_WILDCARD (receive_interface)) - receive_interface = NULL; - if (IS_WILDCARD (receive_member)) - receive_member = NULL; - if (IS_WILDCARD (receive_error)) - receive_error = NULL; - if (IS_WILDCARD (receive_sender)) - receive_sender = NULL; - if (IS_WILDCARD (receive_path)) - receive_path = NULL; - if (IS_WILDCARD (receive_type)) - receive_type = NULL; - - message_type = DBUS_MESSAGE_TYPE_INVALID; - if (receive_type != NULL) - { - message_type = dbus_message_type_from_string (receive_type); - if (message_type == DBUS_MESSAGE_TYPE_INVALID) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Bad message type \"%s\"", - receive_type); - return FALSE; - } - } - - - if (eavesdrop && - !(strcmp (eavesdrop, "true") == 0 || - strcmp (eavesdrop, "false") == 0)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Bad value \"%s\" for %s attribute, must be true or false", - "eavesdrop", eavesdrop); - return FALSE; - } - - if (receive_requested_reply && - !(strcmp (receive_requested_reply, "true") == 0 || - strcmp (receive_requested_reply, "false") == 0)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Bad value \"%s\" for %s attribute, must be true or false", - "receive_requested_reply", receive_requested_reply); - return FALSE; - } - - rule = bus_policy_rule_new (BUS_POLICY_RULE_RECEIVE, allow); - if (rule == NULL) - goto nomem; - - if (eavesdrop) - rule->d.receive.eavesdrop = (strcmp (eavesdrop, "true") == 0); - - if (receive_requested_reply) - rule->d.receive.requested_reply = (strcmp (receive_requested_reply, "true") == 0); - - rule->d.receive.message_type = message_type; - rule->d.receive.path = _dbus_strdup (receive_path); - rule->d.receive.interface = _dbus_strdup (receive_interface); - rule->d.receive.member = _dbus_strdup (receive_member); - rule->d.receive.error = _dbus_strdup (receive_error); - rule->d.receive.origin = _dbus_strdup (receive_sender); - - if (receive_path && rule->d.receive.path == NULL) - goto nomem; - if (receive_interface && rule->d.receive.interface == NULL) - goto nomem; - if (receive_member && rule->d.receive.member == NULL) - goto nomem; - if (receive_error && rule->d.receive.error == NULL) - goto nomem; - if (receive_sender && rule->d.receive.origin == NULL) - goto nomem; - } - else if (own || own_prefix) - { - rule = bus_policy_rule_new (BUS_POLICY_RULE_OWN, allow); - if (rule == NULL) - goto nomem; - - if (own) - { - if (IS_WILDCARD (own)) - own = NULL; - - rule->d.own.prefix = 0; - rule->d.own.service_name = _dbus_strdup (own); - if (own && rule->d.own.service_name == NULL) - goto nomem; - } - else - { - rule->d.own.prefix = 1; - rule->d.own.service_name = _dbus_strdup (own_prefix); - if (rule->d.own.service_name == NULL) - goto nomem; - } - } - else if (user) - { - if (IS_WILDCARD (user)) - { - rule = bus_policy_rule_new (BUS_POLICY_RULE_USER, allow); - if (rule == NULL) - goto nomem; - - rule->d.user.uid = DBUS_UID_UNSET; - } - else - { - DBusString username; - dbus_uid_t uid; - - _dbus_string_init_const (&username, user); - - if (_dbus_parse_unix_user_from_config (&username, &uid)) - { - rule = bus_policy_rule_new (BUS_POLICY_RULE_USER, allow); - if (rule == NULL) - goto nomem; - - rule->d.user.uid = uid; - } - else - { - _dbus_warn ("Unknown username \"%s\" on element <%s>\n", - user, element_name); - } - } - } - else if (group) - { - if (IS_WILDCARD (group)) - { - rule = bus_policy_rule_new (BUS_POLICY_RULE_GROUP, allow); - if (rule == NULL) - goto nomem; - - rule->d.group.gid = DBUS_GID_UNSET; - } - else - { - DBusString groupname; - dbus_gid_t gid; - - _dbus_string_init_const (&groupname, group); - - if (_dbus_parse_unix_group_from_config (&groupname, &gid)) - { - rule = bus_policy_rule_new (BUS_POLICY_RULE_GROUP, allow); - if (rule == NULL) - goto nomem; - - rule->d.group.gid = gid; - } - else - { - _dbus_warn ("Unknown group \"%s\" on element <%s>\n", - group, element_name); - } - } - } - else - _dbus_assert_not_reached ("Did not handle some combination of attributes on <allow> or <deny>"); - - if (rule != NULL) - { - Element *pe; - - pe = peek_element (parser); - _dbus_assert (pe != NULL); - _dbus_assert (pe->type == ELEMENT_POLICY); - - switch (pe->d.policy.type) - { - case POLICY_IGNORED: - /* drop the rule on the floor */ - break; - - case POLICY_DEFAULT: - if (!bus_policy_append_default_rule (parser->policy, rule)) - goto nomem; - break; - case POLICY_MANDATORY: - if (!bus_policy_append_mandatory_rule (parser->policy, rule)) - goto nomem; - break; - case POLICY_USER: - if (!BUS_POLICY_RULE_IS_PER_CLIENT (rule)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "<%s> rule cannot be per-user because it has bus-global semantics", - element_name); - goto failed; - } - - if (!bus_policy_append_user_rule (parser->policy, pe->d.policy.gid_uid_or_at_console, - rule)) - goto nomem; - break; - case POLICY_GROUP: - if (!BUS_POLICY_RULE_IS_PER_CLIENT (rule)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "<%s> rule cannot be per-group because it has bus-global semantics", - element_name); - goto failed; - } - - if (!bus_policy_append_group_rule (parser->policy, pe->d.policy.gid_uid_or_at_console, - rule)) - goto nomem; - break; - - - case POLICY_CONSOLE: - if (!bus_policy_append_console_rule (parser->policy, pe->d.policy.gid_uid_or_at_console, - rule)) - goto nomem; - break; - } - - bus_policy_rule_unref (rule); - rule = NULL; - } - - return TRUE; - - nomem: - BUS_SET_OOM (error); - failed: - if (rule) - bus_policy_rule_unref (rule); - return FALSE; -} - -static dbus_bool_t -start_policy_child (BusConfigParser *parser, - const char *element_name, - const char **attribute_names, - const char **attribute_values, - DBusError *error) -{ - if (strcmp (element_name, "allow") == 0) - { - if (!append_rule_from_element (parser, element_name, - attribute_names, attribute_values, - TRUE, error)) - return FALSE; - - if (push_element (parser, ELEMENT_ALLOW) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else if (strcmp (element_name, "deny") == 0) - { - if (!append_rule_from_element (parser, element_name, - attribute_names, attribute_values, - FALSE, error)) - return FALSE; - - if (push_element (parser, ELEMENT_DENY) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Element <%s> not allowed inside <%s> in configuration file", - element_name, "policy"); - return FALSE; - } -} - -static dbus_bool_t -start_selinux_child (BusConfigParser *parser, - const char *element_name, - const char **attribute_names, - const char **attribute_values, - DBusError *error) -{ - char *own_copy; - char *context_copy; - - own_copy = NULL; - context_copy = NULL; - - if (strcmp (element_name, "associate") == 0) - { - const char *own; - const char *context; - - if (!locate_attributes (parser, "associate", - attribute_names, - attribute_values, - error, - "own", &own, - "context", &context, - NULL)) - return FALSE; - - if (push_element (parser, ELEMENT_ASSOCIATE) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - if (own == NULL || context == NULL) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Element <associate> must have attributes own=\"<servicename>\" and context=\"<selinux context>\""); - return FALSE; - } - - own_copy = _dbus_strdup (own); - if (own_copy == NULL) - goto oom; - context_copy = _dbus_strdup (context); - if (context_copy == NULL) - goto oom; - - if (!_dbus_hash_table_insert_string (parser->service_context_table, - own_copy, context_copy)) - goto oom; - - return TRUE; - } - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Element <%s> not allowed inside <%s> in configuration file", - element_name, "selinux"); - return FALSE; - } - - oom: - if (own_copy) - dbus_free (own_copy); - - if (context_copy) - dbus_free (context_copy); - - BUS_SET_OOM (error); - return FALSE; -} - -dbus_bool_t -bus_config_parser_start_element (BusConfigParser *parser, - const char *element_name, - const char **attribute_names, - const char **attribute_values, - DBusError *error) -{ - ElementType t; - - _DBUS_ASSERT_ERROR_IS_CLEAR (error); - - /* printf ("START: %s\n", element_name); */ - - t = top_element_type (parser); - - if (t == ELEMENT_NONE) - { - if (strcmp (element_name, "busconfig") == 0) - { - if (!check_no_attributes (parser, "busconfig", attribute_names, attribute_values, error)) - return FALSE; - - if (push_element (parser, ELEMENT_BUSCONFIG) == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - return TRUE; - } - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Unknown element <%s> at root of configuration file", - element_name); - return FALSE; - } - } - else if (t == ELEMENT_BUSCONFIG) - { - return start_busconfig_child (parser, element_name, - attribute_names, attribute_values, - error); - } - else if (t == ELEMENT_POLICY) - { - return start_policy_child (parser, element_name, - attribute_names, attribute_values, - error); - } - else if (t == ELEMENT_SELINUX) - { - return start_selinux_child (parser, element_name, - attribute_names, attribute_values, - error); - } - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Element <%s> is not allowed in this context", - element_name); - return FALSE; - } -} - -static dbus_bool_t -set_limit (BusConfigParser *parser, - const char *name, - long value, - DBusError *error) -{ - dbus_bool_t must_be_positive; - dbus_bool_t must_be_int; - - must_be_int = FALSE; - must_be_positive = FALSE; - - if (strcmp (name, "max_incoming_bytes") == 0) - { - must_be_positive = TRUE; - parser->limits.max_incoming_bytes = value; - } - else if (strcmp (name, "max_incoming_unix_fds") == 0) - { - must_be_positive = TRUE; - parser->limits.max_incoming_unix_fds = value; - } - else if (strcmp (name, "max_outgoing_bytes") == 0) - { - must_be_positive = TRUE; - parser->limits.max_outgoing_bytes = value; - } - else if (strcmp (name, "max_outgoing_unix_fds") == 0) - { - must_be_positive = TRUE; - parser->limits.max_outgoing_unix_fds = value; - } - else if (strcmp (name, "max_message_size") == 0) - { - must_be_positive = TRUE; - parser->limits.max_message_size = value; - } - else if (strcmp (name, "max_message_unix_fds") == 0) - { - must_be_positive = TRUE; - parser->limits.max_message_unix_fds = value; - } - else if (strcmp (name, "service_start_timeout") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.activation_timeout = value; - } - else if (strcmp (name, "auth_timeout") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.auth_timeout = value; - } - else if (strcmp (name, "reply_timeout") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.reply_timeout = value; - } - else if (strcmp (name, "max_completed_connections") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.max_completed_connections = value; - } - else if (strcmp (name, "max_incomplete_connections") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.max_incomplete_connections = value; - } - else if (strcmp (name, "max_connections_per_user") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.max_connections_per_user = value; - } - else if (strcmp (name, "max_pending_service_starts") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.max_pending_activations = value; - } - else if (strcmp (name, "max_names_per_connection") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.max_services_per_connection = value; - } - else if (strcmp (name, "max_match_rules_per_connection") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.max_match_rules_per_connection = value; - } - else if (strcmp (name, "max_replies_per_connection") == 0) - { - must_be_positive = TRUE; - must_be_int = TRUE; - parser->limits.max_replies_per_connection = value; - } - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "There is no limit called \"%s\"\n", - name); - return FALSE; - } - - if (must_be_positive && value < 0) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "<limit name=\"%s\"> must be a positive number\n", - name); - return FALSE; - } - - if (must_be_int && - (value < _DBUS_INT_MIN || value > _DBUS_INT_MAX)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "<limit name=\"%s\"> value is too large\n", - name); - return FALSE; - } - - return TRUE; -} - -dbus_bool_t -bus_config_parser_end_element (BusConfigParser *parser, - const char *element_name, - DBusError *error) -{ - ElementType t; - const char *n; - Element *e; - - _DBUS_ASSERT_ERROR_IS_CLEAR (error); - - /* printf ("END: %s\n", element_name); */ - - t = top_element_type (parser); - - if (t == ELEMENT_NONE) - { - /* should probably be an assertion failure but - * being paranoid about XML parsers - */ - dbus_set_error (error, DBUS_ERROR_FAILED, - "XML parser ended element with no element on the stack"); - return FALSE; - } - - n = bus_config_parser_element_type_to_name (t); - _dbus_assert (n != NULL); - if (strcmp (n, element_name) != 0) - { - /* should probably be an assertion failure but - * being paranoid about XML parsers - */ - dbus_set_error (error, DBUS_ERROR_FAILED, - "XML element <%s> ended but topmost element on the stack was <%s>", - element_name, n); - return FALSE; - } - - e = peek_element (parser); - _dbus_assert (e != NULL); - - switch (e->type) - { - case ELEMENT_NONE: - _dbus_assert_not_reached ("element in stack has no type"); - break; - - case ELEMENT_INCLUDE: - case ELEMENT_USER: - case ELEMENT_CONFIGTYPE: - case ELEMENT_LISTEN: - case ELEMENT_PIDFILE: - case ELEMENT_AUTH: - case ELEMENT_SERVICEDIR: - case ELEMENT_SERVICEHELPER: - case ELEMENT_INCLUDEDIR: - case ELEMENT_LIMIT: - if (!e->had_content) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "XML element <%s> was expected to have content inside it", - bus_config_parser_element_type_to_name (e->type)); - return FALSE; - } - - if (e->type == ELEMENT_LIMIT) - { - if (!set_limit (parser, e->d.limit.name, e->d.limit.value, - error)) - return FALSE; - } - break; - - case ELEMENT_BUSCONFIG: - case ELEMENT_POLICY: - case ELEMENT_ALLOW: - case ELEMENT_DENY: - case ELEMENT_FORK: - case ELEMENT_SYSLOG: - case ELEMENT_KEEP_UMASK: - case ELEMENT_SELINUX: - case ELEMENT_ASSOCIATE: - case ELEMENT_STANDARD_SESSION_SERVICEDIRS: - case ELEMENT_STANDARD_SYSTEM_SERVICEDIRS: - case ELEMENT_ALLOW_ANONYMOUS: - break; - } - - pop_element (parser); - - return TRUE; -} - -static dbus_bool_t -all_whitespace (const DBusString *str) -{ - int i; - - _dbus_string_skip_white (str, 0, &i); - - return i == _dbus_string_get_length (str); -} - -static dbus_bool_t -make_full_path (const DBusString *basedir, - const DBusString *filename, - DBusString *full_path) -{ - if (_dbus_path_is_absolute (filename)) - { - return _dbus_string_copy (filename, 0, full_path, 0); - } - else - { - if (!_dbus_string_copy (basedir, 0, full_path, 0)) - return FALSE; - - if (!_dbus_concat_dir_and_file (full_path, filename)) - return FALSE; - - return TRUE; - } -} - -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; - const char *filename_str; - DBusError tmp_error; - - dbus_error_init (&tmp_error); - - filename_str = _dbus_string_get_const_data (filename); - - /* Check to make sure this file hasn't already been included. */ - if (seen_include (parser, filename)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Circular inclusion of file '%s'", - filename_str); - return FALSE; - } - - if (! _dbus_list_append (&parser->included_files, (void *) filename_str)) - { - BUS_SET_OOM (error); - return FALSE; - } - - /* Since parser is passed in as the parent, included - inherits parser's limits. */ - included = bus_config_load (filename, FALSE, parser, &tmp_error); - - _dbus_list_pop_last (&parser->included_files); - - 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; - } - - /* Copy included's limits back to parser. */ - parser->limits = included->limits; - - bus_config_parser_unref (included); - return TRUE; - } -} - -static dbus_bool_t -servicehelper_path (BusConfigParser *parser, - const DBusString *filename, - DBusError *error) -{ - const char *filename_str; - char *servicehelper; - - filename_str = _dbus_string_get_const_data (filename); - - /* copy to avoid overwriting with NULL on OOM */ - servicehelper = _dbus_strdup (filename_str); - - /* check for OOM */ - if (servicehelper == NULL) - { - BUS_SET_OOM (error); - return FALSE; - } - - /* save the latest servicehelper only if not OOM */ - dbus_free (parser->servicehelper); - parser->servicehelper = servicehelper; - - /* We don't check whether the helper exists; instead we - * would just fail to ever activate anything if it doesn't. - * This allows an admin to fix the problem if it doesn't exist. - * It also allows the parser test suite to successfully parse - * test cases without installing the helper. ;-) - */ - - 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; - char *s; - - if (!_dbus_string_init (&filename)) - { - BUS_SET_OOM (error); - return FALSE; - } - - retval = FALSE; - - dir = _dbus_directory_open (dirname, error); - - if (dir == NULL) - goto failed; - - dbus_error_init (&tmp_error); - while (_dbus_directory_get_next_file (dir, &filename, &tmp_error)) - { - DBusString full_path; - - if (!_dbus_string_init (&full_path)) - { - BUS_SET_OOM (error); - goto failed; - } - - if (!_dbus_string_copy (dirname, 0, &full_path, 0)) - { - BUS_SET_OOM (error); - _dbus_string_free (&full_path); - goto failed; - } - - if (!_dbus_concat_dir_and_file (&full_path, &filename)) - { - BUS_SET_OOM (error); - _dbus_string_free (&full_path); - goto failed; - } - - if (_dbus_string_ends_with_c_str (&full_path, ".conf")) - { - if (!include_file (parser, &full_path, TRUE, error)) - { - if (dbus_error_is_set (error)) - { - /* We log to syslog unconditionally here, because this is - * the configuration parser, so we don't yet know whether - * this bus is going to want to write to syslog! (There's - * also some layer inversion going on, if we want to use - * the bus context.) */ - _dbus_system_log (DBUS_SYSTEM_LOG_INFO, - "Encountered error '%s' while parsing '%s'\n", - error->message, - _dbus_string_get_const_data (&full_path)); - dbus_error_free (error); - } - } - } - - _dbus_string_free (&full_path); - } - - if (dbus_error_is_set (&tmp_error)) - { - dbus_move_error (&tmp_error, error); - goto failed; - } - - - if (!_dbus_string_copy_data (dirname, &s)) - { - BUS_SET_OOM (error); - goto failed; - } - - if (!_dbus_list_append (&parser->conf_dirs, s)) - { - dbus_free (s); - BUS_SET_OOM (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, - DBusError *error) -{ - Element *e; - - _DBUS_ASSERT_ERROR_IS_CLEAR (error); - -#if 0 - { - const char *c_str; - - _dbus_string_get_const_data (content, &c_str); - - printf ("CONTENT %d bytes: %s\n", _dbus_string_get_length (content), c_str); - } -#endif - - e = peek_element (parser); - if (e == NULL) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Text content outside of any XML element in configuration file"); - return FALSE; - } - else if (e->had_content) - { - _dbus_assert_not_reached ("Element had multiple content blocks"); - return FALSE; - } - - switch (top_element_type (parser)) - { - case ELEMENT_NONE: - _dbus_assert_not_reached ("element at top of stack has no type"); - return FALSE; - - case ELEMENT_BUSCONFIG: - case ELEMENT_POLICY: - case ELEMENT_ALLOW: - case ELEMENT_DENY: - case ELEMENT_FORK: - case ELEMENT_SYSLOG: - case ELEMENT_KEEP_UMASK: - case ELEMENT_STANDARD_SESSION_SERVICEDIRS: - case ELEMENT_STANDARD_SYSTEM_SERVICEDIRS: - case ELEMENT_ALLOW_ANONYMOUS: - case ELEMENT_SELINUX: - case ELEMENT_ASSOCIATE: - if (all_whitespace (content)) - return TRUE; - else - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "No text content expected inside XML element %s in configuration file", - bus_config_parser_element_type_to_name (top_element_type (parser))); - return FALSE; - } - - case ELEMENT_PIDFILE: - { - char *s; - - e->had_content = TRUE; - - if (!_dbus_string_copy_data (content, &s)) - goto nomem; - - dbus_free (parser->pidfile); - parser->pidfile = s; - } - break; - - case ELEMENT_INCLUDE: - { - DBusString full_path, selinux_policy_root; - - e->had_content = TRUE; - - if (e->d.include.if_selinux_enabled - && !bus_selinux_enabled ()) - break; - - if (!_dbus_string_init (&full_path)) - goto nomem; - - if (e->d.include.selinux_root_relative) - { - if (!bus_selinux_get_policy_root ()) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Could not determine SELinux policy root for relative inclusion"); - _dbus_string_free (&full_path); - return FALSE; - } - _dbus_string_init_const (&selinux_policy_root, - bus_selinux_get_policy_root ()); - if (!make_full_path (&selinux_policy_root, content, &full_path)) - { - _dbus_string_free (&full_path); - goto nomem; - } - } - else if (!make_full_path (&parser->basedir, content, &full_path)) - { - _dbus_string_free (&full_path); - goto nomem; - } - - if (!include_file (parser, &full_path, - e->d.include.ignore_missing, error)) - { - _dbus_string_free (&full_path); - return FALSE; - } - - _dbus_string_free (&full_path); - } - break; - - case ELEMENT_SERVICEHELPER: - { - DBusString full_path; - - e->had_content = TRUE; - - if (!_dbus_string_init (&full_path)) - goto nomem; - - if (!make_full_path (&parser->basedir, content, &full_path)) - { - _dbus_string_free (&full_path); - goto nomem; - } - - if (!servicehelper_path (parser, &full_path, error)) - { - _dbus_string_free (&full_path); - return FALSE; - } - - _dbus_string_free (&full_path); - } - break; - - case ELEMENT_INCLUDEDIR: - { - DBusString full_path; - - e->had_content = TRUE; - - if (!_dbus_string_init (&full_path)) - goto nomem; - - if (!make_full_path (&parser->basedir, content, &full_path)) - { - _dbus_string_free (&full_path); - goto nomem; - } - - if (!include_dir (parser, &full_path, error)) - { - _dbus_string_free (&full_path); - return FALSE; - } - - _dbus_string_free (&full_path); - } - break; - - case ELEMENT_USER: - { - char *s; - - e->had_content = TRUE; - - if (!_dbus_string_copy_data (content, &s)) - goto nomem; - - dbus_free (parser->user); - parser->user = s; - } - break; - - case ELEMENT_CONFIGTYPE: - { - char *s; - - e->had_content = TRUE; - - if (!_dbus_string_copy_data (content, &s)) - goto nomem; - - dbus_free (parser->bus_type); - parser->bus_type = s; - } - break; - - case ELEMENT_LISTEN: - { - char *s; - - e->had_content = TRUE; - - if (!_dbus_string_copy_data (content, &s)) - goto nomem; - - if (!_dbus_list_append (&parser->listen_on, - s)) - { - dbus_free (s); - goto nomem; - } - } - break; - - case ELEMENT_AUTH: - { - char *s; - - e->had_content = TRUE; - - if (!_dbus_string_copy_data (content, &s)) - goto nomem; - - if (!_dbus_list_append (&parser->mechanisms, - s)) - { - dbus_free (s); - goto nomem; - } - } - break; - - case ELEMENT_SERVICEDIR: - { - char *s; - DBusString full_path; - - e->had_content = TRUE; - - if (!_dbus_string_init (&full_path)) - goto nomem; - - if (!make_full_path (&parser->basedir, content, &full_path)) - { - _dbus_string_free (&full_path); - goto nomem; - } - - if (!_dbus_string_copy_data (&full_path, &s)) - { - _dbus_string_free (&full_path); - goto nomem; - } - - /* _only_ extra session directories can be specified */ - if (!service_dirs_append_unique_or_free (&parser->service_dirs, s)) - { - _dbus_string_free (&full_path); - dbus_free (s); - goto nomem; - } - - _dbus_string_free (&full_path); - } - break; - - case ELEMENT_LIMIT: - { - long val; - - e->had_content = TRUE; - - val = 0; - if (!_dbus_string_parse_int (content, 0, &val, NULL)) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "<limit name=\"%s\"> element has invalid value (could not parse as integer)", - e->d.limit.name); - return FALSE; - } - - e->d.limit.value = val; - - _dbus_verbose ("Loaded value %ld for limit %s\n", - e->d.limit.value, - e->d.limit.name); - } - break; - } - - _DBUS_ASSERT_ERROR_IS_CLEAR (error); - return TRUE; - - nomem: - BUS_SET_OOM (error); - return FALSE; -} - -dbus_bool_t -bus_config_parser_finished (BusConfigParser *parser, - DBusError *error) -{ - _DBUS_ASSERT_ERROR_IS_CLEAR (error); - - if (parser->stack != NULL) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Element <%s> was not closed in configuration file", - bus_config_parser_element_type_to_name (top_element_type (parser))); - - return FALSE; - } - - if (parser->is_toplevel && parser->listen_on == NULL) - { - dbus_set_error (error, DBUS_ERROR_FAILED, - "Configuration file needs one or more <listen> elements giving addresses"); - return FALSE; - } - - return TRUE; -} - -const char* -bus_config_parser_get_user (BusConfigParser *parser) -{ - return parser->user; -} - -const char* -bus_config_parser_get_type (BusConfigParser *parser) -{ - return parser->bus_type; -} - -DBusList** -bus_config_parser_get_addresses (BusConfigParser *parser) -{ - return &parser->listen_on; -} - -DBusList** -bus_config_parser_get_mechanisms (BusConfigParser *parser) -{ - return &parser->mechanisms; -} - -DBusList** -bus_config_parser_get_service_dirs (BusConfigParser *parser) -{ - return &parser->service_dirs; -} - -DBusList** -bus_config_parser_get_conf_dirs (BusConfigParser *parser) -{ - return &parser->conf_dirs; -} - -dbus_bool_t -bus_config_parser_get_fork (BusConfigParser *parser) -{ - return parser->fork; -} - -dbus_bool_t -bus_config_parser_get_syslog (BusConfigParser *parser) -{ - return parser->syslog; -} - -dbus_bool_t -bus_config_parser_get_keep_umask (BusConfigParser *parser) -{ - return parser->keep_umask; -} - -dbus_bool_t -bus_config_parser_get_allow_anonymous (BusConfigParser *parser) -{ - return parser->allow_anonymous; -} - -const char * -bus_config_parser_get_pidfile (BusConfigParser *parser) -{ - return parser->pidfile; -} - -const char * -bus_config_parser_get_servicehelper (BusConfigParser *parser) -{ - return parser->servicehelper; -} - -BusPolicy* -bus_config_parser_steal_policy (BusConfigParser *parser) -{ - BusPolicy *policy; - - _dbus_assert (parser->policy != NULL); /* can only steal the policy 1 time */ - - policy = parser->policy; - - parser->policy = NULL; - - return policy; -} - -/* Overwrite any limits that were set in the configuration file */ -void -bus_config_parser_get_limits (BusConfigParser *parser, - BusLimits *limits) -{ - *limits = parser->limits; -} - -DBusHashTable* -bus_config_parser_steal_service_context_table (BusConfigParser *parser) -{ - DBusHashTable *table; - - _dbus_assert (parser->service_context_table != NULL); /* can only steal once */ - - table = parser->service_context_table; - - parser->service_context_table = NULL; - - return table; -} - -#ifdef DBUS_ENABLE_EMBEDDED_TESTS -#include <stdio.h> - -typedef enum -{ - VALID, - INVALID, - UNKNOWN -} Validity; - -static dbus_bool_t -do_check_own_rules (BusPolicy *policy) -{ - const struct { - char *name; - dbus_bool_t allowed; - } checks[] = { - {"org.freedesktop", FALSE}, - {"org.freedesktop.ManySystem", FALSE}, - {"org.freedesktop.ManySystems", TRUE}, - {"org.freedesktop.ManySystems.foo", TRUE}, - {"org.freedesktop.ManySystems.foo.bar", TRUE}, - {"org.freedesktop.ManySystems2", FALSE}, - {"org.freedesktop.ManySystems2.foo", FALSE}, - {"org.freedesktop.ManySystems2.foo.bar", FALSE}, - {NULL, FALSE} - }; - int i = 0; - - while (checks[i].name) - { - DBusString service_name; - dbus_bool_t ret; - - if (!_dbus_string_init (&service_name)) - _dbus_assert_not_reached ("couldn't init string"); - if (!_dbus_string_append (&service_name, checks[i].name)) - _dbus_assert_not_reached ("couldn't append string"); - - ret = bus_policy_check_can_own (policy, &service_name); - printf (" Check name %s: %s\n", checks[i].name, - ret ? "allowed" : "not allowed"); - if (checks[i].allowed && !ret) - { - _dbus_warn ("Cannot own %s\n", checks[i].name); - return FALSE; - } - if (!checks[i].allowed && ret) - { - _dbus_warn ("Can own %s\n", checks[i].name); - return FALSE; - } - _dbus_string_free (&service_name); - - i++; - } - - return TRUE; -} - -static dbus_bool_t -do_load (const DBusString *full_path, - Validity validity, - dbus_bool_t oom_possible, - dbus_bool_t check_own_rules) -{ - BusConfigParser *parser; - DBusError error; - - dbus_error_init (&error); - - parser = bus_config_load (full_path, TRUE, NULL, &error); - if (parser == NULL) - { - _DBUS_ASSERT_ERROR_IS_SET (&error); - - if (oom_possible && - dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY)) - { - _dbus_verbose ("Failed to load valid file due to OOM\n"); - dbus_error_free (&error); - return TRUE; - } - else if (validity == VALID) - { - _dbus_warn ("Failed to load valid file but still had memory: %s\n", - error.message); - - dbus_error_free (&error); - return FALSE; - } - else - { - dbus_error_free (&error); - return TRUE; - } - } - else - { - _DBUS_ASSERT_ERROR_IS_CLEAR (&error); - - if (check_own_rules && do_check_own_rules (parser->policy) == FALSE) - { - return FALSE; - } - - bus_config_parser_unref (parser); - - if (validity == INVALID) - { - _dbus_warn ("Accepted invalid file\n"); - return FALSE; - } - - return TRUE; - } -} - -typedef struct -{ - const DBusString *full_path; - Validity validity; - dbus_bool_t check_own_rules; -} LoaderOomData; - -static dbus_bool_t -check_loader_oom_func (void *data) -{ - LoaderOomData *d = data; - - return do_load (d->full_path, d->validity, TRUE, d->check_own_rules); -} - -static dbus_bool_t -process_test_valid_subdir (const DBusString *test_base_dir, - const char *subdir, - Validity validity) -{ - DBusString test_directory; - DBusString filename; - DBusDirIter *dir; - dbus_bool_t retval; - DBusError error; - - retval = FALSE; - dir = NULL; - - if (!_dbus_string_init (&test_directory)) - _dbus_assert_not_reached ("didn't allocate test_directory\n"); - - _dbus_string_init_const (&filename, subdir); - - if (!_dbus_string_copy (test_base_dir, 0, - &test_directory, 0)) - _dbus_assert_not_reached ("couldn't copy test_base_dir to test_directory"); - - if (!_dbus_concat_dir_and_file (&test_directory, &filename)) - _dbus_assert_not_reached ("couldn't allocate full path"); - - _dbus_string_free (&filename); - if (!_dbus_string_init (&filename)) - _dbus_assert_not_reached ("didn't allocate filename string\n"); - - dbus_error_init (&error); - dir = _dbus_directory_open (&test_directory, &error); - if (dir == NULL) - { - _dbus_warn ("Could not open %s: %s\n", - _dbus_string_get_const_data (&test_directory), - error.message); - dbus_error_free (&error); - goto failed; - } - - if (validity == VALID) - printf ("Testing valid files:\n"); - else if (validity == INVALID) - printf ("Testing invalid files:\n"); - else - printf ("Testing unknown files:\n"); - - next: - while (_dbus_directory_get_next_file (dir, &filename, &error)) - { - DBusString full_path; - LoaderOomData d; - - if (!_dbus_string_init (&full_path)) - _dbus_assert_not_reached ("couldn't init string"); - - if (!_dbus_string_copy (&test_directory, 0, &full_path, 0)) - _dbus_assert_not_reached ("couldn't copy dir to full_path"); - - if (!_dbus_concat_dir_and_file (&full_path, &filename)) - _dbus_assert_not_reached ("couldn't concat file to dir"); - - if (!_dbus_string_ends_with_c_str (&full_path, ".conf")) - { - _dbus_verbose ("Skipping non-.conf file %s\n", - _dbus_string_get_const_data (&filename)); - _dbus_string_free (&full_path); - goto next; - } - - printf (" %s\n", _dbus_string_get_const_data (&filename)); - - _dbus_verbose (" expecting %s\n", - validity == VALID ? "valid" : - (validity == INVALID ? "invalid" : - (validity == UNKNOWN ? "unknown" : "???"))); - - d.full_path = &full_path; - d.validity = validity; - d.check_own_rules = _dbus_string_ends_with_c_str (&full_path, - "check-own-rules.conf"); - - /* FIXME hackaround for an expat problem, see - * https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=124747 - * http://freedesktop.org/pipermail/dbus/2004-May/001153.html - */ - /* if (!_dbus_test_oom_handling ("config-loader", check_loader_oom_func, &d)) */ - if (!check_loader_oom_func (&d)) - _dbus_assert_not_reached ("test failed"); - - _dbus_string_free (&full_path); - } - - if (dbus_error_is_set (&error)) - { - _dbus_warn ("Could not get next file in %s: %s\n", - _dbus_string_get_const_data (&test_directory), - error.message); - dbus_error_free (&error); - goto failed; - } - - retval = TRUE; - - failed: - - if (dir) - _dbus_directory_close (dir); - _dbus_string_free (&test_directory); - _dbus_string_free (&filename); - - return retval; -} - -static dbus_bool_t -bools_equal (dbus_bool_t a, - dbus_bool_t b) -{ - return a ? b : !b; -} - -static dbus_bool_t -strings_equal_or_both_null (const char *a, - const char *b) -{ - if (a == NULL || b == NULL) - return a == b; - else - return !strcmp (a, b); -} - -static dbus_bool_t -elements_equal (const Element *a, - const Element *b) -{ - if (a->type != b->type) - return FALSE; - - if (!bools_equal (a->had_content, b->had_content)) - return FALSE; - - switch (a->type) - { - - case ELEMENT_INCLUDE: - if (!bools_equal (a->d.include.ignore_missing, - b->d.include.ignore_missing)) - return FALSE; - break; - - case ELEMENT_POLICY: - if (a->d.policy.type != b->d.policy.type) - return FALSE; - if (a->d.policy.gid_uid_or_at_console != b->d.policy.gid_uid_or_at_console) - return FALSE; - break; - - case ELEMENT_LIMIT: - if (strcmp (a->d.limit.name, b->d.limit.name)) - return FALSE; - if (a->d.limit.value != b->d.limit.value) - return FALSE; - break; - - default: - /* do nothing */ - break; - } - - return TRUE; - -} - -static dbus_bool_t -lists_of_elements_equal (DBusList *a, - DBusList *b) -{ - DBusList *ia; - DBusList *ib; - - ia = a; - ib = b; - - while (ia != NULL && ib != NULL) - { - if (elements_equal (ia->data, ib->data)) - return FALSE; - ia = _dbus_list_get_next_link (&a, ia); - ib = _dbus_list_get_next_link (&b, ib); - } - - return ia == NULL && ib == NULL; -} - -static dbus_bool_t -lists_of_c_strings_equal (DBusList *a, - DBusList *b) -{ - DBusList *ia; - DBusList *ib; - - ia = a; - ib = b; - - while (ia != NULL && ib != NULL) - { - if (strcmp (ia->data, ib->data)) - return FALSE; - ia = _dbus_list_get_next_link (&a, ia); - ib = _dbus_list_get_next_link (&b, ib); - } - - return ia == NULL && ib == NULL; -} - -static dbus_bool_t -limits_equal (const BusLimits *a, - const BusLimits *b) -{ - return - (a->max_incoming_bytes == b->max_incoming_bytes - || a->max_incoming_unix_fds == b->max_incoming_unix_fds - || a->max_outgoing_bytes == b->max_outgoing_bytes - || a->max_outgoing_unix_fds == b->max_outgoing_unix_fds - || a->max_message_size == b->max_message_size - || a->max_message_unix_fds == b->max_message_unix_fds - || a->activation_timeout == b->activation_timeout - || a->auth_timeout == b->auth_timeout - || a->max_completed_connections == b->max_completed_connections - || a->max_incomplete_connections == b->max_incomplete_connections - || a->max_connections_per_user == b->max_connections_per_user - || a->max_pending_activations == b->max_pending_activations - || a->max_services_per_connection == b->max_services_per_connection - || a->max_match_rules_per_connection == b->max_match_rules_per_connection - || a->max_replies_per_connection == b->max_replies_per_connection - || a->reply_timeout == b->reply_timeout); -} - -static dbus_bool_t -config_parsers_equal (const BusConfigParser *a, - const BusConfigParser *b) -{ - if (!_dbus_string_equal (&a->basedir, &b->basedir)) - return FALSE; - - if (!lists_of_elements_equal (a->stack, b->stack)) - return FALSE; - - if (!strings_equal_or_both_null (a->user, b->user)) - return FALSE; - - if (!lists_of_c_strings_equal (a->listen_on, b->listen_on)) - return FALSE; - - if (!lists_of_c_strings_equal (a->mechanisms, b->mechanisms)) - return FALSE; - - if (!lists_of_c_strings_equal (a->service_dirs, b->service_dirs)) - return FALSE; - - /* FIXME: compare policy */ - - /* FIXME: compare service selinux ID table */ - - if (! limits_equal (&a->limits, &b->limits)) - return FALSE; - - if (!strings_equal_or_both_null (a->pidfile, b->pidfile)) - return FALSE; - - if (! bools_equal (a->fork, b->fork)) - return FALSE; - - if (! bools_equal (a->keep_umask, b->keep_umask)) - return FALSE; - - if (! bools_equal (a->is_toplevel, b->is_toplevel)) - return FALSE; - - return TRUE; -} - -static dbus_bool_t -all_are_equiv (const DBusString *target_directory) -{ - DBusString filename; - DBusDirIter *dir; - BusConfigParser *first_parser; - BusConfigParser *parser; - DBusError error; - dbus_bool_t equal; - dbus_bool_t retval; - - dir = NULL; - first_parser = NULL; - parser = NULL; - retval = FALSE; - - if (!_dbus_string_init (&filename)) - _dbus_assert_not_reached ("didn't allocate filename string"); - - dbus_error_init (&error); - dir = _dbus_directory_open (target_directory, &error); - if (dir == NULL) - { - _dbus_warn ("Could not open %s: %s\n", - _dbus_string_get_const_data (target_directory), - error.message); - dbus_error_free (&error); - goto finished; - } - - printf ("Comparing equivalent files:\n"); - - next: - while (_dbus_directory_get_next_file (dir, &filename, &error)) - { - DBusString full_path; - - if (!_dbus_string_init (&full_path)) - _dbus_assert_not_reached ("couldn't init string"); - - if (!_dbus_string_copy (target_directory, 0, &full_path, 0)) - _dbus_assert_not_reached ("couldn't copy dir to full_path"); - - if (!_dbus_concat_dir_and_file (&full_path, &filename)) - _dbus_assert_not_reached ("couldn't concat file to dir"); - - if (!_dbus_string_ends_with_c_str (&full_path, ".conf")) - { - _dbus_verbose ("Skipping non-.conf file %s\n", - _dbus_string_get_const_data (&filename)); - _dbus_string_free (&full_path); - goto next; - } - - printf (" %s\n", _dbus_string_get_const_data (&filename)); - - parser = bus_config_load (&full_path, TRUE, NULL, &error); - - if (parser == NULL) - { - _dbus_warn ("Could not load file %s: %s\n", - _dbus_string_get_const_data (&full_path), - error.message); - _dbus_string_free (&full_path); - dbus_error_free (&error); - goto finished; - } - else if (first_parser == NULL) - { - _dbus_string_free (&full_path); - first_parser = parser; - } - else - { - _dbus_string_free (&full_path); - equal = config_parsers_equal (first_parser, parser); - bus_config_parser_unref (parser); - if (! equal) - goto finished; - } - } - - retval = TRUE; - - finished: - _dbus_string_free (&filename); - if (first_parser) - bus_config_parser_unref (first_parser); - if (dir) - _dbus_directory_close (dir); - - return retval; - -} - -static dbus_bool_t -process_test_equiv_subdir (const DBusString *test_base_dir, - const char *subdir) -{ - DBusString test_directory; - DBusString filename; - DBusDirIter *dir; - DBusError error; - dbus_bool_t equal; - dbus_bool_t retval; - - dir = NULL; - retval = FALSE; - - if (!_dbus_string_init (&test_directory)) - _dbus_assert_not_reached ("didn't allocate test_directory"); - - _dbus_string_init_const (&filename, subdir); - - if (!_dbus_string_copy (test_base_dir, 0, - &test_directory, 0)) - _dbus_assert_not_reached ("couldn't copy test_base_dir to test_directory"); - - if (!_dbus_concat_dir_and_file (&test_directory, &filename)) - _dbus_assert_not_reached ("couldn't allocate full path"); - - _dbus_string_free (&filename); - if (!_dbus_string_init (&filename)) - _dbus_assert_not_reached ("didn't allocate filename string"); - - dbus_error_init (&error); - dir = _dbus_directory_open (&test_directory, &error); - if (dir == NULL) - { - _dbus_warn ("Could not open %s: %s\n", - _dbus_string_get_const_data (&test_directory), - error.message); - dbus_error_free (&error); - goto finished; - } - - while (_dbus_directory_get_next_file (dir, &filename, &error)) - { - DBusString full_path; - - /* Skip CVS's magic directories! */ - if (_dbus_string_equal_c_str (&filename, "CVS")) - continue; - - if (!_dbus_string_init (&full_path)) - _dbus_assert_not_reached ("couldn't init string"); - - if (!_dbus_string_copy (&test_directory, 0, &full_path, 0)) - _dbus_assert_not_reached ("couldn't copy dir to full_path"); - - if (!_dbus_concat_dir_and_file (&full_path, &filename)) - _dbus_assert_not_reached ("couldn't concat file to dir"); - - equal = all_are_equiv (&full_path); - _dbus_string_free (&full_path); - - if (!equal) - goto finished; - } - - retval = TRUE; - - finished: - _dbus_string_free (&test_directory); - _dbus_string_free (&filename); - if (dir) - _dbus_directory_close (dir); - - return retval; - -} - -static const char *test_session_service_dir_matches[] = - { -#ifdef DBUS_UNIX - "/testhome/foo/.testlocal/testshare/dbus-1/services", - "/testusr/testlocal/testshare/dbus-1/services", - "/testusr/testshare/dbus-1/services", - DBUS_DATADIR"/dbus-1/services", -#endif -/* will be filled in test_default_session_servicedirs() */ -#ifdef DBUS_WIN - NULL, - NULL, -#endif - NULL - }; - -static dbus_bool_t -test_default_session_servicedirs (void) -{ - DBusList *dirs; - DBusList *link; - DBusString progs; - int i; - -#ifdef DBUS_WIN - const char *common_progs; - char buffer[1024]; - - if (_dbus_get_install_root(buffer, sizeof(buffer))) - { - strcat(buffer,DBUS_DATADIR); - strcat(buffer,"/dbus-1/services"); - test_session_service_dir_matches[0] = buffer; - } -#endif - - /* On Unix we don't actually use this variable, but it's easier to handle the - * deallocation if we always allocate it, whether needed or not */ - if (!_dbus_string_init (&progs)) - _dbus_assert_not_reached ("OOM allocating progs"); - -#ifndef DBUS_UNIX - common_progs = _dbus_getenv ("CommonProgramFiles"); - - if (common_progs) - { - if (!_dbus_string_append (&progs, common_progs)) - { - _dbus_string_free (&progs); - return FALSE; - } - - if (!_dbus_string_append (&progs, "/dbus-1/services")) - { - _dbus_string_free (&progs); - return FALSE; - } - test_session_service_dir_matches[1] = _dbus_string_get_const_data(&progs); - } -#endif - dirs = NULL; - - printf ("Testing retrieving the default session service directories\n"); - if (!_dbus_get_standard_session_servicedirs (&dirs)) - _dbus_assert_not_reached ("couldn't get stardard dirs"); - - /* make sure our defaults end with share/dbus-1/service */ - while ((link = _dbus_list_pop_first_link (&dirs))) - { - DBusString path; - - printf (" default service dir: %s\n", (char *)link->data); - _dbus_string_init_const (&path, (char *)link->data); - if (!_dbus_string_ends_with_c_str (&path, "dbus-1/services")) - { - printf ("error with default session service directories\n"); - dbus_free (link->data); - _dbus_list_free_link (link); - _dbus_string_free (&progs); - return FALSE; - } - - dbus_free (link->data); - _dbus_list_free_link (link); - } - -#ifdef DBUS_UNIX - if (!dbus_setenv ("XDG_DATA_HOME", "/testhome/foo/.testlocal/testshare")) - _dbus_assert_not_reached ("couldn't setenv XDG_DATA_HOME"); - - if (!dbus_setenv ("XDG_DATA_DIRS", ":/testusr/testlocal/testshare: :/testusr/testshare:")) - _dbus_assert_not_reached ("couldn't setenv XDG_DATA_DIRS"); -#endif - if (!_dbus_get_standard_session_servicedirs (&dirs)) - _dbus_assert_not_reached ("couldn't get stardard dirs"); - - /* make sure we read and parse the env variable correctly */ - i = 0; - while ((link = _dbus_list_pop_first_link (&dirs))) - { - printf (" test service dir: %s\n", (char *)link->data); - if (test_session_service_dir_matches[i] == NULL) - { - printf ("more directories parsed than in match set\n"); - dbus_free (link->data); - _dbus_list_free_link (link); - _dbus_string_free (&progs); - return FALSE; - } - - if (strcmp (test_session_service_dir_matches[i], - (char *)link->data) != 0) - { - printf ("%s directory does not match %s in the match set\n", - (char *)link->data, - test_session_service_dir_matches[i]); - dbus_free (link->data); - _dbus_list_free_link (link); - _dbus_string_free (&progs); - return FALSE; - } - - ++i; - - dbus_free (link->data); - _dbus_list_free_link (link); - } - - if (test_session_service_dir_matches[i] != NULL) - { - printf ("extra data %s in the match set was not matched\n", - test_session_service_dir_matches[i]); - - _dbus_string_free (&progs); - return FALSE; - } - - _dbus_string_free (&progs); - return TRUE; -} - -static const char *test_system_service_dir_matches[] = - { -#ifdef DBUS_UNIX - "/usr/local/share/dbus-1/system-services", - "/usr/share/dbus-1/system-services", -#endif - DBUS_DATADIR"/dbus-1/system-services", -#ifdef DBUS_UNIX - "/lib/dbus-1/system-services", -#endif - -#ifdef DBUS_WIN - NULL, -#endif - NULL - }; - -static dbus_bool_t -test_default_system_servicedirs (void) -{ - DBusList *dirs; - DBusList *link; - DBusString progs; -#ifndef DBUS_UNIX - const char *common_progs; -#endif - int i; - - /* On Unix we don't actually use this variable, but it's easier to handle the - * deallocation if we always allocate it, whether needed or not */ - if (!_dbus_string_init (&progs)) - _dbus_assert_not_reached ("OOM allocating progs"); - -#ifndef DBUS_UNIX - common_progs = _dbus_getenv ("CommonProgramFiles"); - - if (common_progs) - { - if (!_dbus_string_append (&progs, common_progs)) - { - _dbus_string_free (&progs); - return FALSE; - } - - if (!_dbus_string_append (&progs, "/dbus-1/system-services")) - { - _dbus_string_free (&progs); - return FALSE; - } - test_system_service_dir_matches[1] = _dbus_string_get_const_data(&progs); - } -#endif - dirs = NULL; - - printf ("Testing retrieving the default system service directories\n"); - if (!_dbus_get_standard_system_servicedirs (&dirs)) - _dbus_assert_not_reached ("couldn't get stardard dirs"); - - /* make sure our defaults end with share/dbus-1/system-service */ - while ((link = _dbus_list_pop_first_link (&dirs))) - { - DBusString path; - - printf (" default service dir: %s\n", (char *)link->data); - _dbus_string_init_const (&path, (char *)link->data); - if (!_dbus_string_ends_with_c_str (&path, "dbus-1/system-services")) - { - printf ("error with default system service directories\n"); - dbus_free (link->data); - _dbus_list_free_link (link); - _dbus_string_free (&progs); - return FALSE; - } - - dbus_free (link->data); - _dbus_list_free_link (link); - } - -#ifdef DBUS_UNIX - if (!dbus_setenv ("XDG_DATA_HOME", "/testhome/foo/.testlocal/testshare")) - _dbus_assert_not_reached ("couldn't setenv XDG_DATA_HOME"); - - if (!dbus_setenv ("XDG_DATA_DIRS", ":/testusr/testlocal/testshare: :/testusr/testshare:")) - _dbus_assert_not_reached ("couldn't setenv XDG_DATA_DIRS"); -#endif - if (!_dbus_get_standard_system_servicedirs (&dirs)) - _dbus_assert_not_reached ("couldn't get stardard dirs"); - - /* make sure we read and parse the env variable correctly */ - i = 0; - while ((link = _dbus_list_pop_first_link (&dirs))) - { - printf (" test service dir: %s\n", (char *)link->data); - if (test_system_service_dir_matches[i] == NULL) - { - printf ("more directories parsed than in match set\n"); - dbus_free (link->data); - _dbus_list_free_link (link); - _dbus_string_free (&progs); - return FALSE; - } - - if (strcmp (test_system_service_dir_matches[i], - (char *)link->data) != 0) - { - printf ("%s directory does not match %s in the match set\n", - (char *)link->data, - test_system_service_dir_matches[i]); - dbus_free (link->data); - _dbus_list_free_link (link); - _dbus_string_free (&progs); - return FALSE; - } - - ++i; - - dbus_free (link->data); - _dbus_list_free_link (link); - } - - if (test_system_service_dir_matches[i] != NULL) - { - printf ("extra data %s in the match set was not matched\n", - test_system_service_dir_matches[i]); - - _dbus_string_free (&progs); - return FALSE; - } - - _dbus_string_free (&progs); - return TRUE; -} - -dbus_bool_t -bus_config_parser_test (const DBusString *test_data_dir) -{ - if (test_data_dir == NULL || - _dbus_string_get_length (test_data_dir) == 0) - { - printf ("No test data\n"); - return TRUE; - } - - if (!test_default_session_servicedirs()) - return FALSE; - -#ifdef DBUS_WIN - printf("default system service dir skipped\n"); -#else - if (!test_default_system_servicedirs()) - return FALSE; -#endif - - if (!process_test_valid_subdir (test_data_dir, "valid-config-files", VALID)) - return FALSE; - - if (!process_test_valid_subdir (test_data_dir, "invalid-config-files", INVALID)) - return FALSE; - - if (!process_test_equiv_subdir (test_data_dir, "equiv-config-files")) - return FALSE; - - return TRUE; -} - -#endif /* DBUS_ENABLE_EMBEDDED_TESTS */ - |