diff options
| author |   José Bollo <jose.bollo@iot.bzh> | 2018-01-29 16:18:10 +0100 |
|---|---|---|
| committer | José Bollo <jose.bollo@iot.bzh> | 2018-02-13 11:02:00 +0100 |
| commit | 5a827a287451d9916a6bcb6eae90770add971be9 (patch) | |
| tree | b3dd33c54a8dbfaa12ea212908dd07a10bb565c6 /meta-security | |
| parent | 0d732135b4011bec7d5367bb56d7be1c1a3ac44e (diff) | |
dbus-cynara: Upgrade to 1.10.20
The main patches from dbus to make it cynara aware are
cherry-picked on top of the dbus 1.10.20 that is the
upstream version for rocko.
Change-Id: Ib7b07f335543cb56c4c96ef8f55305e61bc69b5c
Signed-off-by: José Bollo <jose.bollo@iot.bzh>
Diffstat (limited to 'meta-security')
18 files changed, 5794 insertions, 255 deletions
diff --git a/meta-security/recipes-core/dbus/dbus-cynara/0001-Fix-memleak-in-GetConnectionCredentials-handler.patch b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0001-Fix-memleak-in-GetConnectionCredentials-handler.patch index 271ac48a1..271ac48a1 100644 --- a/meta-security/recipes-core/dbus/dbus-cynara/0001-Fix-memleak-in-GetConnectionCredentials-handler.patch +++ b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0001-Fix-memleak-in-GetConnectionCredentials-handler.patch diff --git a/meta-security/recipes-core/dbus/dbus-cynara/0002-New-a-sv-helper-for-using-byte-arrays-as-the-variant.patch b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0002-New-a-sv-helper-for-using-byte-arrays-as-the-variant.patch index 64c8b9b50..64c8b9b50 100644 --- a/meta-security/recipes-core/dbus/dbus-cynara/0002-New-a-sv-helper-for-using-byte-arrays-as-the-variant.patch +++ b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0002-New-a-sv-helper-for-using-byte-arrays-as-the-variant.patch diff --git a/meta-security/recipes-core/dbus/dbus-cynara/0003-Add-LSM-agnostic-support-for-LinuxSecurityLabel-cred.patch b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0003-Add-LSM-agnostic-support-for-LinuxSecurityLabel-cred.patch index fcb85504d..fcb85504d 100644 --- a/meta-security/recipes-core/dbus/dbus-cynara/0003-Add-LSM-agnostic-support-for-LinuxSecurityLabel-cred.patch +++ b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0003-Add-LSM-agnostic-support-for-LinuxSecurityLabel-cred.patch diff --git a/meta-security/recipes-core/dbus/dbus-cynara/0004-Integration-of-Cynara-asynchronous-security-checks.patch b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0004-Integration-of-Cynara-asynchronous-security-checks.patch index 70d5fc9d7..70d5fc9d7 100644 --- a/meta-security/recipes-core/dbus/dbus-cynara/0004-Integration-of-Cynara-asynchronous-security-checks.patch +++ b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0004-Integration-of-Cynara-asynchronous-security-checks.patch diff --git a/meta-security/recipes-core/dbus/dbus-cynara/0005-Disable-message-dispatching-when-send-rule-result-is.patch b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0005-Disable-message-dispatching-when-send-rule-result-is.patch index ca787149e..ca787149e 100644 --- a/meta-security/recipes-core/dbus/dbus-cynara/0005-Disable-message-dispatching-when-send-rule-result-is.patch +++ b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0005-Disable-message-dispatching-when-send-rule-result-is.patch diff --git a/meta-security/recipes-core/dbus/dbus-cynara/0006-Handle-unavailability-of-policy-results-for-broadcas.patch b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0006-Handle-unavailability-of-policy-results-for-broadcas.patch index 66f4e14e5..66f4e14e5 100644 --- a/meta-security/recipes-core/dbus/dbus-cynara/0006-Handle-unavailability-of-policy-results-for-broadcas.patch +++ b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0006-Handle-unavailability-of-policy-results-for-broadcas.patch diff --git a/meta-security/recipes-core/dbus/dbus-cynara/0007-Add-own-rule-result-unavailability-handling.patch b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0007-Add-own-rule-result-unavailability-handling.patch index e1b1e62f1..e1b1e62f1 100644 --- a/meta-security/recipes-core/dbus/dbus-cynara/0007-Add-own-rule-result-unavailability-handling.patch +++ b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0007-Add-own-rule-result-unavailability-handling.patch diff --git a/meta-security/recipes-core/dbus/dbus-cynara/0008-Add-GetConnectionSmackContext-D-Bus-daemon-method.patch b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0008-Add-GetConnectionSmackContext-D-Bus-daemon-method.patch index 43a1ef658..43a1ef658 100644 --- a/meta-security/recipes-core/dbus/dbus-cynara/0008-Add-GetConnectionSmackContext-D-Bus-daemon-method.patch +++ b/meta-security/recipes-core/dbus-cynara/dbus-cynara/0008-Add-GetConnectionSmackContext-D-Bus-daemon-method.patch diff --git a/meta-security/recipes-core/dbus/dbus-cynara/Perform-Cynara-runtime-policy-checks-by-default.patch b/meta-security/recipes-core/dbus-cynara/dbus-cynara/Perform-Cynara-runtime-policy-checks-by-default.patch index e573fb3b3..e573fb3b3 100644 --- a/meta-security/recipes-core/dbus/dbus-cynara/Perform-Cynara-runtime-policy-checks-by-default.patch +++ b/meta-security/recipes-core/dbus-cynara/dbus-cynara/Perform-Cynara-runtime-policy-checks-by-default.patch diff --git a/meta-security/recipes-core/dbus-cynara/dbus/0001-Integration-of-Cynara-asynchronous-security-checks.patch b/meta-security/recipes-core/dbus-cynara/dbus/0001-Integration-of-Cynara-asynchronous-security-checks.patch new file mode 100644 index 000000000..6a7e8a39d --- /dev/null +++ b/meta-security/recipes-core/dbus-cynara/dbus/0001-Integration-of-Cynara-asynchronous-security-checks.patch @@ -0,0 +1,2261 @@ +From 8f69153081140fa4c347ab1729c348ec77b309ec Mon Sep 17 00:00:00 2001 +From: Jacek Bukarewicz <j.bukarewicz@samsung.com> +Date: Thu, 27 Nov 2014 18:11:05 +0100 +Subject: [PATCH 1/5] Integration of Cynara asynchronous security checks +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This commit introduces basic framework for asynchronous policy +checks and Cynara integration code. Functions for checking security +policy can now return third value - BUS_RESULT_LATER denoting check +result unavailability. Whenever policy checker cannot decide on the +result of the check it is supposed to allocate DeferredMessage structure +that will be passed to the upper layers which can decide what should be +done in such situation. +Proper handling of such case will be implemented in subsequent commits. +Currently such return value results in message denial. + +Cherry picked from 4dcfb02f17247ff9de966b62182cd2e08f301238 +by José Bollo. + +Change-Id: I9bcbce34577e5dc2a3cecf6233a0a2b0e43e1108 +Signed-off-by: José Bollo <jose.bollo@iot.bzh> +--- + bus/Makefile.am | 6 + + bus/bus.c | 136 +++++--- + bus/bus.h | 32 +- + bus/check.c | 217 ++++++++++++ + bus/check.h | 68 ++++ + bus/config-parser-common.c | 6 + + bus/config-parser-common.h | 1 + + bus/config-parser.c | 71 +++- + bus/connection.c | 56 ++- + bus/connection.h | 4 + + bus/cynara.c | 374 +++++++++++++++++++++ + bus/cynara.h | 37 ++ + bus/dispatch.c | 44 ++- + bus/policy.c | 193 +++++++---- + bus/policy.h | 51 ++- + configure.ac | 12 + + test/Makefile.am | 1 + + test/data/invalid-config-files/badcheck-1.conf | 9 + + test/data/invalid-config-files/badcheck-2.conf | 9 + + test/data/valid-config-files/check-1.conf | 9 + + .../valid-config-files/debug-check-some.conf.in | 18 + + tools/dbus-send.c | 2 +- + 22 files changed, 1193 insertions(+), 163 deletions(-) + create mode 100644 bus/check.c + create mode 100644 bus/check.h + create mode 100644 bus/cynara.c + create mode 100644 bus/cynara.h + create mode 100644 test/data/invalid-config-files/badcheck-1.conf + create mode 100644 test/data/invalid-config-files/badcheck-2.conf + create mode 100644 test/data/valid-config-files/check-1.conf + create mode 100644 test/data/valid-config-files/debug-check-some.conf.in + +diff --git a/bus/Makefile.am b/bus/Makefile.am +index 33af09b0..3f57cc48 100644 +--- a/bus/Makefile.am ++++ b/bus/Makefile.am +@@ -9,6 +9,7 @@ DBUS_BUS_LIBS = \ + $(THREAD_LIBS) \ + $(ADT_LIBS) \ + $(NETWORK_libs) \ ++ $(CYNARA_LIBS) \ + $(NULL) + + DBUS_LAUNCHER_LIBS = \ +@@ -24,6 +25,7 @@ AM_CPPFLAGS = \ + $(APPARMOR_CFLAGS) \ + -DDBUS_SYSTEM_CONFIG_FILE=\""$(dbusdatadir)/system.conf"\" \ + -DDBUS_COMPILATION \ ++ $(CYNARA_CFLAGS) \ + $(NULL) + + # if assertions are enabled, improve backtraces +@@ -82,12 +84,16 @@ BUS_SOURCES= \ + audit.h \ + bus.c \ + bus.h \ ++ check.c \ ++ check.h \ + config-parser.c \ + config-parser.h \ + config-parser-common.c \ + config-parser-common.h \ + connection.c \ + connection.h \ ++ cynara.c \ ++ cynara.h \ + desktop-file.c \ + desktop-file.h \ + $(DIR_WATCH_SOURCE) \ +diff --git a/bus/bus.c b/bus/bus.c +index fd4ab9e4..c4008505 100644 +--- a/bus/bus.c ++++ b/bus/bus.c +@@ -37,6 +37,7 @@ + #include "apparmor.h" + #include "audit.h" + #include "dir-watch.h" ++#include "check.h" + #include <dbus/dbus-list.h> + #include <dbus/dbus-hash.h> + #include <dbus/dbus-credentials.h> +@@ -65,6 +66,7 @@ struct BusContext + BusRegistry *registry; + BusPolicy *policy; + BusMatchmaker *matchmaker; ++ BusCheck *check; + BusLimits limits; + DBusRLimit *initial_fd_limit; + unsigned int fork : 1; +@@ -988,6 +990,10 @@ bus_context_new (const DBusString *config_file, + parser = NULL; + } + ++ context->check = bus_check_new(context, error); ++ if (context->check == NULL) ++ goto failed; ++ + dbus_server_free_data_slot (&server_data_slot); + + return context; +@@ -1112,6 +1118,12 @@ bus_context_unref (BusContext *context) + + bus_context_shutdown (context); + ++ if (context->check) ++ { ++ bus_check_unref(context->check); ++ context->check = NULL; ++ } ++ + if (context->connections) + { + bus_connections_unref (context->connections); +@@ -1241,6 +1253,12 @@ bus_context_get_loop (BusContext *context) + return context->loop; + } + ++BusCheck* ++bus_context_get_check (BusContext *context) ++{ ++ return context->check; ++} ++ + dbus_bool_t + bus_context_allow_unix_user (BusContext *context, + unsigned long uid) +@@ -1456,6 +1474,7 @@ complain_about_message (BusContext *context, + DBusConnection *proposed_recipient, + dbus_bool_t requested_reply, + dbus_bool_t log, ++ const char *privilege, + DBusError *error) + { + DBusError stack_error = DBUS_ERROR_INIT; +@@ -1485,7 +1504,8 @@ complain_about_message (BusContext *context, + dbus_set_error (&stack_error, error_name, + "%s, %d matched rules; type=\"%s\", sender=\"%s\" (%s) " + "interface=\"%s\" member=\"%s\" error name=\"%s\" " +- "requested_reply=\"%d\" destination=\"%s\" (%s)", ++ "requested_reply=\"%d\" destination=\"%s\" (%s) " ++ "privilege=\"%s\"", + complaint, + matched_rules, + dbus_message_type_to_string (dbus_message_get_type (message)), +@@ -1496,7 +1516,8 @@ complain_about_message (BusContext *context, + nonnull (dbus_message_get_error_name (message), "(unset)"), + requested_reply, + nonnull (dbus_message_get_destination (message), DBUS_SERVICE_DBUS), +- proposed_recipient_loginfo); ++ proposed_recipient_loginfo, ++ nonnull (privilege, "(n/a)")); + + /* If we hit OOM while setting the error, this will syslog "out of memory" + * which is itself an indication that something is seriously wrong */ +@@ -1520,14 +1541,15 @@ complain_about_message (BusContext *context, + * NULL for addressed_recipient may mean the bus driver, or may mean + * no destination was specified in the message (e.g. a signal). + */ +-dbus_bool_t +-bus_context_check_security_policy (BusContext *context, +- BusTransaction *transaction, +- DBusConnection *sender, +- DBusConnection *addressed_recipient, +- DBusConnection *proposed_recipient, +- DBusMessage *message, +- DBusError *error) ++BusResult ++bus_context_check_security_policy (BusContext *context, ++ BusTransaction *transaction, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ DBusMessage *message, ++ DBusError *error, ++ BusDeferredMessage **deferred_message) + { + const char *src, *dest; + BusClientPolicy *sender_policy; +@@ -1536,6 +1558,7 @@ bus_context_check_security_policy (BusContext *context, + dbus_bool_t log; + int type; + dbus_bool_t requested_reply; ++ const char *privilege; + + type = dbus_message_get_type (message); + src = dbus_message_get_sender (message); +@@ -1564,7 +1587,7 @@ bus_context_check_security_policy (BusContext *context, + dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED, + "Message bus will not accept messages of unknown type\n"); + +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + requested_reply = FALSE; +@@ -1594,7 +1617,7 @@ bus_context_check_security_policy (BusContext *context, + if (dbus_error_is_set (&error2)) + { + dbus_move_error (&error2, error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + } + } +@@ -1621,11 +1644,11 @@ bus_context_check_security_policy (BusContext *context, + complain_about_message (context, DBUS_ERROR_ACCESS_DENIED, + "An SELinux policy prevents this sender from sending this " + "message to this recipient", +- 0, message, sender, proposed_recipient, FALSE, FALSE, error); ++ 0, message, sender, proposed_recipient, FALSE, FALSE, NULL, error); + _dbus_verbose ("SELinux security check denying send to service\n"); + } + +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + /* next verify AppArmor access controls. If allowed then +@@ -1642,7 +1665,7 @@ bus_context_check_security_policy (BusContext *context, + dest ? dest : DBUS_SERVICE_DBUS, + src ? src : DBUS_SERVICE_DBUS, + error)) +- return FALSE; ++ return BUS_RESULT_FALSE; + + if (!bus_connection_is_active (sender)) + { +@@ -1656,7 +1679,7 @@ bus_context_check_security_policy (BusContext *context, + { + _dbus_verbose ("security check allowing %s message\n", + "Hello"); +- return TRUE; ++ return BUS_RESULT_TRUE; + } + else + { +@@ -1667,7 +1690,7 @@ bus_context_check_security_policy (BusContext *context, + "Client tried to send a message other than %s without being registered", + "Hello"); + +- return FALSE; ++ return BUS_RESULT_FALSE; + } + } + } +@@ -1716,20 +1739,29 @@ bus_context_check_security_policy (BusContext *context, + (proposed_recipient == NULL && recipient_policy == NULL)); + + log = FALSE; +- if (sender_policy && +- !bus_client_policy_check_can_send (sender_policy, +- context->registry, +- requested_reply, +- proposed_recipient, +- message, &toggles, &log)) +- { +- complain_about_message (context, DBUS_ERROR_ACCESS_DENIED, +- "Rejected send message", toggles, +- message, sender, proposed_recipient, requested_reply, +- (addressed_recipient == proposed_recipient), error); +- _dbus_verbose ("security policy disallowing message due to sender policy\n"); +- return FALSE; +- } ++ if (sender_policy) ++ { ++ BusResult res = bus_client_policy_check_can_send (sender, ++ sender_policy, ++ context->registry, ++ requested_reply, ++ addressed_recipient, ++ proposed_recipient, ++ message, &toggles, &log, &privilege, ++ deferred_message); ++ if (res == BUS_RESULT_FALSE) ++ { ++ complain_about_message (context, DBUS_ERROR_ACCESS_DENIED, ++ "Rejected send message", toggles, ++ message, sender, proposed_recipient, requested_reply, ++ (addressed_recipient == proposed_recipient), privilege, ++ error); ++ _dbus_verbose ("security policy disallowing message due to sender policy\n"); ++ return BUS_RESULT_FALSE; ++ } ++ else if (res == BUS_RESULT_LATER) ++ return BUS_RESULT_LATER; ++ } + + if (log) + { +@@ -1738,23 +1770,29 @@ bus_context_check_security_policy (BusContext *context, + complain_about_message (context, DBUS_ERROR_ACCESS_DENIED, + "Would reject message", toggles, + message, sender, proposed_recipient, requested_reply, +- TRUE, NULL); ++ TRUE, privilege, NULL); + } + +- if (recipient_policy && +- !bus_client_policy_check_can_receive (recipient_policy, +- context->registry, +- requested_reply, +- sender, +- addressed_recipient, proposed_recipient, +- message, &toggles)) ++ if (recipient_policy) + { +- complain_about_message (context, DBUS_ERROR_ACCESS_DENIED, +- "Rejected receive message", toggles, +- message, sender, proposed_recipient, requested_reply, +- (addressed_recipient == proposed_recipient), error); +- _dbus_verbose ("security policy disallowing message due to recipient policy\n"); +- return FALSE; ++ BusResult res; ++ res = bus_client_policy_check_can_receive (recipient_policy, ++ context->registry, ++ requested_reply, ++ sender, ++ addressed_recipient, proposed_recipient, ++ message, &toggles, &privilege, deferred_message); ++ if (res == BUS_RESULT_FALSE) ++ { ++ complain_about_message(context, DBUS_ERROR_ACCESS_DENIED, "Rejected receive message", ++ toggles, message, sender, proposed_recipient, requested_reply, ++ (addressed_recipient == proposed_recipient), privilege, error); ++ _dbus_verbose( ++ "security policy disallowing message due to recipient policy\n"); ++ return BUS_RESULT_FALSE; ++ } ++ else if (res == BUS_RESULT_LATER) ++ return BUS_RESULT_LATER; + } + + /* See if limits on size have been exceeded */ +@@ -1764,10 +1802,10 @@ bus_context_check_security_policy (BusContext *context, + { + complain_about_message (context, DBUS_ERROR_LIMITS_EXCEEDED, + "Rejected: destination has a full message queue", +- 0, message, sender, proposed_recipient, requested_reply, TRUE, ++ 0, message, sender, proposed_recipient, requested_reply, TRUE, NULL, + error); + _dbus_verbose ("security policy disallowing message due to full message queue\n"); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + /* Record that we will allow a reply here in the future (don't +@@ -1784,11 +1822,11 @@ bus_context_check_security_policy (BusContext *context, + message, error)) + { + _dbus_verbose ("Failed to record reply expectation or problem with the message expecting a reply\n"); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + _dbus_verbose ("security policy allowing message\n"); +- return TRUE; ++ return BUS_RESULT_TRUE; + } + + void +diff --git a/bus/bus.h b/bus/bus.h +index 3fab59ff..dab7791f 100644 +--- a/bus/bus.h ++++ b/bus/bus.h +@@ -44,6 +44,22 @@ typedef struct BusOwner BusOwner; + typedef struct BusTransaction BusTransaction; + typedef struct BusMatchmaker BusMatchmaker; + typedef struct BusMatchRule BusMatchRule; ++typedef struct BusCheck BusCheck; ++typedef struct BusDeferredMessage BusDeferredMessage; ++typedef struct BusCynara BusCynara; ++ ++/** ++ * BusResult is defined as a pointer to a dummy structure to allow detection of type mismatches. ++ * The disadvantage of such solution is that now BusResult variables cannot be used in switch ++ * statement. ++ * Additionally, BUS_RESULT_TRUE is defined as 0 instead of 1 to help detect type mismatches ++ * at runtime. ++ */ ++typedef const struct BusResultStruct { int dummy; } *BusResult; ++ ++static const BusResult BUS_RESULT_TRUE = (BusResult)0x0; ++static const BusResult BUS_RESULT_FALSE = (BusResult)0x1; ++static const BusResult BUS_RESULT_LATER = (BusResult)0x2; + + typedef struct + { +@@ -97,6 +113,7 @@ BusConnections* bus_context_get_connections (BusContext + BusActivation* bus_context_get_activation (BusContext *context); + BusMatchmaker* bus_context_get_matchmaker (BusContext *context); + DBusLoop* bus_context_get_loop (BusContext *context); ++BusCheck * bus_context_get_check (BusContext *context); + dbus_bool_t bus_context_allow_unix_user (BusContext *context, + unsigned long uid); + dbus_bool_t bus_context_allow_windows_user (BusContext *context, +@@ -131,13 +148,14 @@ void bus_context_log_and_set_error (BusContext + const char *name, + const char *msg, + ...) _DBUS_GNUC_PRINTF (5, 6); +-dbus_bool_t bus_context_check_security_policy (BusContext *context, +- BusTransaction *transaction, +- DBusConnection *sender, +- DBusConnection *addressed_recipient, +- DBusConnection *proposed_recipient, +- DBusMessage *message, +- DBusError *error); ++BusResult bus_context_check_security_policy (BusContext *context, ++ BusTransaction *transaction, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ DBusMessage *message, ++ DBusError *error, ++ BusDeferredMessage **deferred_message); + void bus_context_check_all_watches (BusContext *context); + + #endif /* BUS_BUS_H */ +diff --git a/bus/check.c b/bus/check.c +new file mode 100644 +index 00000000..5b72d31c +--- /dev/null ++++ b/bus/check.c +@@ -0,0 +1,217 @@ ++/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ ++/* check.c Bus security policy runtime check ++ * ++ * Copyright (C) 2014 Intel, Inc. ++ * Copyright (c) 2014 Samsung Electronics, Ltd. ++ * ++ * 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 "check.h" ++#include "connection.h" ++#include "dispatch.h" ++#include "cynara.h" ++#include "utils.h" ++#include <dbus/dbus-connection-internal.h> ++#include <dbus/dbus-message-internal.h> ++#include <dbus/dbus-internals.h> ++ ++ ++typedef struct BusCheck ++{ ++ int refcount; ++ ++ BusContext *context; ++ BusCynara *cynara; ++} BusCheck; ++ ++typedef struct BusDeferredMessage ++{ ++ int refcount; ++ ++ DBusMessage *message; ++ DBusConnection *sender; ++ DBusConnection *proposed_recipient; ++ DBusConnection *addressed_recipient; ++ dbus_bool_t full_dispatch; ++ BusDeferredMessageStatus status; ++ BusResult response; ++ BusCheckResponseFunc response_callback; ++} BusDeferredMessage; ++ ++BusCheck * ++bus_check_new (BusContext *context, DBusError *error) ++{ ++ BusCheck *check; ++ ++ check = dbus_new(BusCheck, 1); ++ if (check == NULL) ++ { ++ BUS_SET_OOM(error); ++ return NULL; ++ } ++ ++ check->refcount = 1; ++ check->context = context; ++ check->cynara = bus_cynara_new(check, error); ++ if (dbus_error_is_set(error)) ++ { ++ dbus_free(check); ++ return NULL; ++ } ++ ++ return check; ++} ++ ++BusCheck * ++bus_check_ref (BusCheck *check) ++{ ++ _dbus_assert (check->refcount > 0); ++ check->refcount += 1; ++ ++ return check; ++} ++ ++void ++bus_check_unref (BusCheck *check) ++{ ++ _dbus_assert (check->refcount > 0); ++ ++ check->refcount -= 1; ++ ++ if (check->refcount == 0) ++ { ++ bus_cynara_unref(check->cynara); ++ dbus_free(check); ++ } ++} ++ ++BusContext * ++bus_check_get_context (BusCheck *check) ++{ ++ return check->context; ++} ++ ++BusCynara * ++bus_check_get_cynara (BusCheck *check) ++{ ++ return check->cynara; ++} ++ ++BusResult ++bus_check_privilege (BusCheck *check, ++ DBusMessage *message, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ const char *privilege, ++ BusDeferredMessageStatus check_type, ++ BusDeferredMessage **deferred_message) ++{ ++ BusResult result = BUS_RESULT_FALSE; ++#ifdef DBUS_ENABLE_CYNARA ++ BusCynara *cynara; ++#endif ++ DBusConnection *connection; ++ ++ connection = check_type == BUS_DEFERRED_MESSAGE_CHECK_RECEIVE ? proposed_recipient : sender; ++ ++ if (!dbus_connection_get_is_connected(connection)) ++ { ++ return BUS_RESULT_FALSE; ++ } ++ ++ /* ask policy checkers */ ++#ifdef DBUS_ENABLE_CYNARA ++ cynara = bus_check_get_cynara(check); ++ result = bus_cynara_check_privilege(cynara, message, sender, addressed_recipient, ++ proposed_recipient, privilege, check_type, deferred_message); ++#endif ++ ++ if (result == BUS_RESULT_LATER && deferred_message != NULL) ++ { ++ (*deferred_message)->status |= check_type; ++ } ++ return result; ++} ++ ++BusDeferredMessage *bus_deferred_message_new (DBusMessage *message, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ BusResult response) ++{ ++ BusDeferredMessage *deferred_message; ++ ++ deferred_message = dbus_new(BusDeferredMessage, 1); ++ if (deferred_message == NULL) ++ { ++ return NULL; ++ } ++ ++ deferred_message->refcount = 1; ++ deferred_message->sender = sender != NULL ? dbus_connection_ref(sender) : NULL; ++ deferred_message->addressed_recipient = addressed_recipient != NULL ? dbus_connection_ref(addressed_recipient) : NULL; ++ deferred_message->proposed_recipient = proposed_recipient != NULL ? dbus_connection_ref(proposed_recipient) : NULL; ++ deferred_message->message = dbus_message_ref(message); ++ deferred_message->response = response; ++ deferred_message->status = 0; ++ deferred_message->full_dispatch = FALSE; ++ deferred_message->response_callback = NULL; ++ ++ return deferred_message; ++} ++ ++BusDeferredMessage * ++bus_deferred_message_ref (BusDeferredMessage *deferred_message) ++{ ++ _dbus_assert (deferred_message->refcount > 0); ++ deferred_message->refcount += 1; ++ return deferred_message; ++} ++ ++void ++bus_deferred_message_unref (BusDeferredMessage *deferred_message) ++{ ++ _dbus_assert (deferred_message->refcount > 0); ++ ++ deferred_message->refcount -= 1; ++ ++ if (deferred_message->refcount == 0) ++ { ++ dbus_message_unref(deferred_message->message); ++ if (deferred_message->sender != NULL) ++ dbus_connection_unref(deferred_message->sender); ++ if (deferred_message->addressed_recipient != NULL) ++ dbus_connection_unref(deferred_message->addressed_recipient); ++ if (deferred_message->proposed_recipient != NULL) ++ dbus_connection_unref(deferred_message->proposed_recipient); ++ dbus_free(deferred_message); ++ } ++} ++ ++void ++bus_deferred_message_response_received (BusDeferredMessage *deferred_message, ++ BusResult result) ++{ ++ if (deferred_message->response_callback != NULL) ++ { ++ deferred_message->response_callback(deferred_message, result); ++ } ++} +diff --git a/bus/check.h b/bus/check.h +new file mode 100644 +index 00000000..c3fcaf90 +--- /dev/null ++++ b/bus/check.h +@@ -0,0 +1,68 @@ ++/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ ++/* check.h Bus security policy runtime check ++ * ++ * Copyright (C) 2014 Intel, Inc. ++ * Copyright (c) 2014 Samsung Electronics, Ltd. ++ * ++ * 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 ++ * ++ */ ++ ++#ifndef BUS_CHECK_H ++#define BUS_CHECK_H ++ ++#include "bus.h" ++#include "policy.h" ++ ++ ++typedef void (*BusCheckResponseFunc) (BusDeferredMessage *message, ++ BusResult result); ++ ++typedef enum { ++ BUS_DEFERRED_MESSAGE_CHECK_SEND = 1 << 0, ++ BUS_DEFERRED_MESSAGE_CHECK_RECEIVE = 1 << 1, ++ BUS_DEFERRED_MESSAGE_CHECK_OWN = 1 << 2, ++} BusDeferredMessageStatus; ++ ++ ++BusCheck *bus_check_new (BusContext *context, ++ DBusError *error); ++BusCheck *bus_check_ref (BusCheck *check); ++void bus_check_unref (BusCheck *check); ++ ++BusContext *bus_check_get_context (BusCheck *check); ++BusCynara *bus_check_get_cynara (BusCheck *check); ++BusResult bus_check_privilege (BusCheck *check, ++ DBusMessage *message, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ const char *privilege, ++ BusDeferredMessageStatus check_type, ++ BusDeferredMessage **deferred_message); ++ ++BusDeferredMessage *bus_deferred_message_new (DBusMessage *message, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ BusResult response); ++ ++BusDeferredMessage *bus_deferred_message_ref (BusDeferredMessage *deferred_message); ++void bus_deferred_message_unref (BusDeferredMessage *deferred_message); ++void bus_deferred_message_response_received (BusDeferredMessage *deferred_message, ++ BusResult result); ++#endif /* BUS_CHECK_H */ +diff --git a/bus/config-parser-common.c b/bus/config-parser-common.c +index 5db6b289..ea25f5e6 100644 +--- a/bus/config-parser-common.c ++++ b/bus/config-parser-common.c +@@ -75,6 +75,10 @@ bus_config_parser_element_name_to_type (const char *name) + { + return ELEMENT_DENY; + } ++ else if (strcmp (name, "check") == 0) ++ { ++ return ELEMENT_CHECK; ++ } + else if (strcmp (name, "servicehelper") == 0) + { + return ELEMENT_SERVICEHELPER; +@@ -159,6 +163,8 @@ bus_config_parser_element_type_to_name (ElementType type) + return "allow"; + case ELEMENT_DENY: + return "deny"; ++ case ELEMENT_CHECK: ++ return "check"; + case ELEMENT_FORK: + return "fork"; + case ELEMENT_PIDFILE: +diff --git a/bus/config-parser-common.h b/bus/config-parser-common.h +index 382a0141..9e026d10 100644 +--- a/bus/config-parser-common.h ++++ b/bus/config-parser-common.h +@@ -36,6 +36,7 @@ typedef enum + ELEMENT_LIMIT, + ELEMENT_ALLOW, + ELEMENT_DENY, ++ ELEMENT_CHECK, + ELEMENT_FORK, + ELEMENT_PIDFILE, + ELEMENT_SERVICEDIR, +diff --git a/bus/config-parser.c b/bus/config-parser.c +index d9f6042c..a8c4ca5d 100644 +--- a/bus/config-parser.c ++++ b/bus/config-parser.c +@@ -1172,7 +1172,7 @@ append_rule_from_element (BusConfigParser *parser, + const char *element_name, + const char **attribute_names, + const char **attribute_values, +- dbus_bool_t allow, ++ BusPolicyRuleAccess access, + DBusError *error) + { + const char *log; +@@ -1195,6 +1195,7 @@ append_rule_from_element (BusConfigParser *parser, + const char *own_prefix; + const char *user; + const char *group; ++ const char *privilege; + + BusPolicyRule *rule; + +@@ -1222,6 +1223,7 @@ append_rule_from_element (BusConfigParser *parser, + "user", &user, + "group", &group, + "log", &log, ++ "privilege", &privilege, + NULL)) + return FALSE; + +@@ -1230,6 +1232,7 @@ append_rule_from_element (BusConfigParser *parser, + receive_interface || receive_member || receive_error || receive_sender || + receive_type || receive_path || eavesdrop || + send_requested_reply || receive_requested_reply || ++ privilege || + own || own_prefix || user || group)) + { + dbus_set_error (error, DBUS_ERROR_FAILED, +@@ -1246,7 +1249,30 @@ append_rule_from_element (BusConfigParser *parser, + element_name); + return FALSE; + } +- ++ ++ if (access == BUS_POLICY_RULE_ACCESS_CHECK) ++ { ++ if (privilege == NULL || !*privilege) ++ { ++ dbus_set_error (error, DBUS_ERROR_FAILED, ++ "On element <%s>, you must specify the privilege to be checked.", ++ element_name); ++ return FALSE; ++ } ++ } ++ else ++ { ++ if (privilege != NULL && *privilege) ++ { ++ dbus_set_error (error, DBUS_ERROR_FAILED, ++ "On element <%s>, privilege %s is used outside of a check rule.", ++ element_name, privilege); ++ return FALSE; ++ } ++ else ++ privilege = NULL; /* replace (potentially) empty string with NULL pointer, it wouldn't be used anyway */ ++ } ++ + /* Allowed combinations of elements are: + * + * base, must be all send or all receive: +@@ -1420,7 +1446,7 @@ append_rule_from_element (BusConfigParser *parser, + return FALSE; + } + +- rule = bus_policy_rule_new (BUS_POLICY_RULE_SEND, allow); ++ rule = bus_policy_rule_new (BUS_POLICY_RULE_SEND, access); + if (rule == NULL) + goto nomem; + +@@ -1502,7 +1528,7 @@ append_rule_from_element (BusConfigParser *parser, + return FALSE; + } + +- rule = bus_policy_rule_new (BUS_POLICY_RULE_RECEIVE, allow); ++ rule = bus_policy_rule_new (BUS_POLICY_RULE_RECEIVE, access); + if (rule == NULL) + goto nomem; + +@@ -1532,7 +1558,7 @@ append_rule_from_element (BusConfigParser *parser, + } + else if (own || own_prefix) + { +- rule = bus_policy_rule_new (BUS_POLICY_RULE_OWN, allow); ++ rule = bus_policy_rule_new (BUS_POLICY_RULE_OWN, access); + if (rule == NULL) + goto nomem; + +@@ -1558,7 +1584,7 @@ append_rule_from_element (BusConfigParser *parser, + { + if (IS_WILDCARD (user)) + { +- rule = bus_policy_rule_new (BUS_POLICY_RULE_USER, allow); ++ rule = bus_policy_rule_new (BUS_POLICY_RULE_USER, access); + if (rule == NULL) + goto nomem; + +@@ -1573,7 +1599,7 @@ append_rule_from_element (BusConfigParser *parser, + + if (_dbus_parse_unix_user_from_config (&username, &uid)) + { +- rule = bus_policy_rule_new (BUS_POLICY_RULE_USER, allow); ++ rule = bus_policy_rule_new (BUS_POLICY_RULE_USER, access); + if (rule == NULL) + goto nomem; + +@@ -1590,7 +1616,7 @@ append_rule_from_element (BusConfigParser *parser, + { + if (IS_WILDCARD (group)) + { +- rule = bus_policy_rule_new (BUS_POLICY_RULE_GROUP, allow); ++ rule = bus_policy_rule_new (BUS_POLICY_RULE_GROUP, access); + if (rule == NULL) + goto nomem; + +@@ -1605,7 +1631,7 @@ append_rule_from_element (BusConfigParser *parser, + + if (_dbus_parse_unix_group_from_config (&groupname, &gid)) + { +- rule = bus_policy_rule_new (BUS_POLICY_RULE_GROUP, allow); ++ rule = bus_policy_rule_new (BUS_POLICY_RULE_GROUP, access); + if (rule == NULL) + goto nomem; + +@@ -1629,6 +1655,10 @@ append_rule_from_element (BusConfigParser *parser, + _dbus_assert (pe != NULL); + _dbus_assert (pe->type == ELEMENT_POLICY); + ++ rule->privilege = _dbus_strdup (privilege); ++ if (privilege && !rule->privilege) ++ goto nomem; ++ + switch (pe->d.policy.type) + { + case POLICY_IGNORED: +@@ -1703,7 +1733,7 @@ start_policy_child (BusConfigParser *parser, + { + if (!append_rule_from_element (parser, element_name, + attribute_names, attribute_values, +- TRUE, error)) ++ BUS_POLICY_RULE_ACCESS_ALLOW, error)) + return FALSE; + + if (push_element (parser, ELEMENT_ALLOW) == NULL) +@@ -1718,7 +1748,7 @@ start_policy_child (BusConfigParser *parser, + { + if (!append_rule_from_element (parser, element_name, + attribute_names, attribute_values, +- FALSE, error)) ++ BUS_POLICY_RULE_ACCESS_DENY, error)) + return FALSE; + + if (push_element (parser, ELEMENT_DENY) == NULL) +@@ -1727,6 +1757,21 @@ start_policy_child (BusConfigParser *parser, + return FALSE; + } + ++ return TRUE; ++ } ++ else if (strcmp (element_name, "check") == 0) ++ { ++ if (!append_rule_from_element (parser, element_name, ++ attribute_names, attribute_values, ++ BUS_POLICY_RULE_ACCESS_CHECK, error)) ++ return FALSE; ++ ++ if (push_element (parser, ELEMENT_CHECK) == NULL) ++ { ++ BUS_SET_OOM (error); ++ return FALSE; ++ } ++ + return TRUE; + } + else +@@ -2088,6 +2133,7 @@ bus_config_parser_end_element (BusConfigParser *parser, + case ELEMENT_POLICY: + case ELEMENT_ALLOW: + case ELEMENT_DENY: ++ case ELEMENT_CHECK: + case ELEMENT_FORK: + case ELEMENT_SYSLOG: + case ELEMENT_KEEP_UMASK: +@@ -2397,6 +2443,7 @@ bus_config_parser_content (BusConfigParser *parser, + case ELEMENT_POLICY: + case ELEMENT_ALLOW: + case ELEMENT_DENY: ++ case ELEMENT_CHECK: + case ELEMENT_FORK: + case ELEMENT_SYSLOG: + case ELEMENT_KEEP_UMASK: +@@ -2862,6 +2909,8 @@ do_load (const DBusString *full_path, + dbus_error_init (&error); + + parser = bus_config_load (full_path, TRUE, NULL, &error); ++ if (dbus_error_is_set (&error)) ++ _dbus_verbose ("Failed to load file: %s\n", error.message); + if (parser == NULL) + { + _DBUS_ASSERT_ERROR_IS_SET (&error); +diff --git a/bus/connection.c b/bus/connection.c +index 02d6c220..eea50ecd 100644 +--- a/bus/connection.c ++++ b/bus/connection.c +@@ -36,6 +36,10 @@ + #include <dbus/dbus-timeout.h> + #include <dbus/dbus-connection-internal.h> + #include <dbus/dbus-internals.h> ++#ifdef DBUS_ENABLE_CYNARA ++#include <stdlib.h> ++#include <cynara-session.h> ++#endif + + /* Trim executed commands to this length; we want to keep logs readable */ + #define MAX_LOG_COMMAND_LEN 50 +@@ -116,6 +120,9 @@ typedef struct + + /** non-NULL if and only if this is a monitor */ + DBusList *link_in_monitors; ++#ifdef DBUS_ENABLE_CYNARA ++ char *cynara_session_id; ++#endif + } BusConnectionData; + + static dbus_bool_t bus_pending_reply_expired (BusExpireList *list, +@@ -129,8 +136,8 @@ static dbus_bool_t expire_incomplete_timeout (void *data); + + #define BUS_CONNECTION_DATA(connection) (dbus_connection_get_data ((connection), connection_data_slot)) + +-static DBusLoop* +-connection_get_loop (DBusConnection *connection) ++DBusLoop* ++bus_connection_get_loop (DBusConnection *connection) + { + BusConnectionData *d; + +@@ -354,7 +361,7 @@ add_connection_watch (DBusWatch *watch, + { + DBusConnection *connection = data; + +- return _dbus_loop_add_watch (connection_get_loop (connection), watch); ++ return _dbus_loop_add_watch (bus_connection_get_loop (connection), watch); + } + + static void +@@ -363,7 +370,7 @@ remove_connection_watch (DBusWatch *watch, + { + DBusConnection *connection = data; + +- _dbus_loop_remove_watch (connection_get_loop (connection), watch); ++ _dbus_loop_remove_watch (bus_connection_get_loop (connection), watch); + } + + static void +@@ -372,7 +379,7 @@ toggle_connection_watch (DBusWatch *watch, + { + DBusConnection *connection = data; + +- _dbus_loop_toggle_watch (connection_get_loop (connection), watch); ++ _dbus_loop_toggle_watch (bus_connection_get_loop (connection), watch); + } + + static dbus_bool_t +@@ -381,7 +388,7 @@ add_connection_timeout (DBusTimeout *timeout, + { + DBusConnection *connection = data; + +- return _dbus_loop_add_timeout (connection_get_loop (connection), timeout); ++ return _dbus_loop_add_timeout (bus_connection_get_loop (connection), timeout); + } + + static void +@@ -390,7 +397,7 @@ remove_connection_timeout (DBusTimeout *timeout, + { + DBusConnection *connection = data; + +- _dbus_loop_remove_timeout (connection_get_loop (connection), timeout); ++ _dbus_loop_remove_timeout (bus_connection_get_loop (connection), timeout); + } + + static void +@@ -451,6 +458,10 @@ free_connection_data (void *data) + + dbus_free (d->name); + ++#ifdef DBUS_ENABLE_CYNARA ++ free (d->cynara_session_id); ++#endif ++ + dbus_free (d); + } + +@@ -1063,6 +1074,22 @@ bus_connection_get_policy (DBusConnection *connection) + return d->policy; + } + ++#ifdef DBUS_ENABLE_CYNARA ++const char *bus_connection_get_cynara_session_id (DBusConnection *connection) ++{ ++ BusConnectionData *d = BUS_CONNECTION_DATA (connection); ++ _dbus_assert (d != NULL); ++ ++ if (d->cynara_session_id == NULL) ++ { ++ unsigned long pid; ++ if (dbus_connection_get_unix_process_id(connection, &pid)) ++ d->cynara_session_id = cynara_session_from_pid(pid); ++ } ++ return d->cynara_session_id; ++} ++#endif ++ + static dbus_bool_t + foreach_active (BusConnections *connections, + BusConnectionForeachFunction function, +@@ -2289,6 +2316,7 @@ bus_transaction_send_from_driver (BusTransaction *transaction, + DBusMessage *message) + { + DBusError error = DBUS_ERROR_INIT; ++ BusResult res; + + /* We have to set the sender to the driver, and have + * to check security policy since it was not done in +@@ -2326,9 +2354,11 @@ bus_transaction_send_from_driver (BusTransaction *transaction, + * if we're actively capturing messages, it's nice to log that we + * tried to send it and did not allow ourselves to do so. + */ +- if (!bus_context_check_security_policy (bus_transaction_get_context (transaction), +- transaction, +- NULL, connection, connection, message, &error)) ++ res = bus_context_check_security_policy (bus_transaction_get_context (transaction), ++ transaction, ++ NULL, connection, connection, message, &error, ++ NULL); ++ if (res == BUS_RESULT_FALSE) + { + if (!bus_transaction_capture_error_reply (transaction, &error, message)) + { +@@ -2342,6 +2372,12 @@ bus_transaction_send_from_driver (BusTransaction *transaction, + dbus_error_free (&error); + return TRUE; + } ++ else if (res == BUS_RESULT_LATER) ++ { ++ _dbus_verbose ("Cannot delay sending message from bus driver, dropping it\n"); ++ dbus_error_free (&error); ++ return TRUE; ++ } + + return bus_transaction_send (transaction, connection, message); + } +diff --git a/bus/connection.h b/bus/connection.h +index 8c68d0a0..a6e5dfde 100644 +--- a/bus/connection.h ++++ b/bus/connection.h +@@ -31,6 +31,7 @@ + typedef dbus_bool_t (* BusConnectionForeachFunction) (DBusConnection *connection, + void *data); + ++DBusLoop* bus_connection_get_loop (DBusConnection *connection); + + BusConnections* bus_connections_new (BusContext *context); + BusConnections* bus_connections_ref (BusConnections *connections); +@@ -122,6 +123,9 @@ dbus_bool_t bus_connection_be_monitor (DBusConnection *connection, + BusTransaction *transaction, + DBusList **rules, + DBusError *error); ++#ifdef DBUS_ENABLE_CYNARA ++const char *bus_connection_get_cynara_session_id (DBusConnection *connection); ++#endif + + /* transaction API so we can send or not send a block of messages as a whole */ + +diff --git a/bus/cynara.c b/bus/cynara.c +new file mode 100644 +index 00000000..57a4c45c +--- /dev/null ++++ b/bus/cynara.c +@@ -0,0 +1,374 @@ ++/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ ++/* cynara.c Cynara runtime privilege checking ++ * ++ * Copyright (c) 2014 Samsung Electronics, Ltd. ++ * ++ * 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 "cynara.h" ++#include "check.h" ++#include "utils.h" ++ ++#include <stdio.h> ++ ++#include <dbus/dbus.h> ++#include <dbus/dbus-watch.h> ++#include <dbus/dbus-connection-internal.h> ++#include <bus/connection.h> ++#ifdef DBUS_ENABLE_CYNARA ++#include <cynara-client-async.h> ++#endif ++ ++ ++#ifdef DBUS_ENABLE_CYNARA ++typedef struct BusCynara ++{ ++ int refcount; ++ ++ BusContext *context; ++ BusCheck *check; ++ cynara_async *cynara; ++ DBusWatch *cynara_watch; ++} BusCynara; ++ ++#define USE_CYNARA_CACHE 1 ++#ifdef USE_CYNARA_CACHE ++#define CYNARA_CACHE_SIZE 1000 ++#endif ++ ++static dbus_bool_t bus_cynara_watch_callback(DBusWatch *watch, ++ unsigned int flags, ++ void *data); ++ ++static void status_callback(int old_fd, ++ int new_fd, ++ cynara_async_status status, ++ void *user_status_data); ++static void bus_cynara_check_response_callback (cynara_check_id check_id, ++ cynara_async_call_cause cause, ++ int response, ++ void *user_response_data); ++#endif ++ ++ ++BusCynara * ++bus_cynara_new(BusCheck *check, DBusError *error) ++{ ++#ifdef DBUS_ENABLE_CYNARA ++ BusContext *context; ++ BusCynara *cynara; ++ cynara_async_configuration *conf = NULL; ++ int ret; ++ ++ cynara = dbus_new(BusCynara, 1); ++ if (cynara == NULL) ++ { ++ BUS_SET_OOM(error); ++ return NULL; ++ } ++ ++ context = bus_check_get_context(check); ++ ++ cynara->refcount = 1; ++ cynara->check = check; ++ cynara->context = context; ++ cynara->cynara_watch = NULL; ++ ++ ret = cynara_async_configuration_create(&conf); ++ if (ret != CYNARA_API_SUCCESS) ++ { ++ dbus_set_error (error, DBUS_ERROR_FAILED, "Failed to create Cynara configuration"); ++ goto out; ++ } ++ ++#ifdef CYNARA_CACHE_SIZE ++ ret = cynara_async_configuration_set_cache_size(conf, CYNARA_CACHE_SIZE); ++ if (ret != CYNARA_API_SUCCESS) ++ { ++ dbus_set_error (error, DBUS_ERROR_FAILED, "Failed to Cynara cache size"); ++ goto out; ++ } ++#endif ++ ++ ret = cynara_async_initialize(&cynara->cynara, conf, &status_callback, cynara); ++ if (ret != CYNARA_API_SUCCESS) ++ { ++ dbus_set_error (error, DBUS_ERROR_FAILED, "Failed to initialize Cynara client"); ++ goto out; ++ } ++ ++out: ++ cynara_async_configuration_destroy(conf); ++ if (ret != CYNARA_API_SUCCESS) ++ { ++ dbus_free(cynara); ++ return NULL; ++ } ++ ++ return cynara; ++#else ++ return NULL; ++#endif ++} ++ ++BusCynara * ++bus_cynara_ref (BusCynara *cynara) ++{ ++#ifdef DBUS_ENABLE_CYNARA ++ _dbus_assert (cynara->refcount > 0); ++ cynara->refcount += 1; ++ ++ return cynara; ++#else ++ return NULL; ++#endif ++} ++ ++void ++bus_cynara_unref (BusCynara *cynara) ++{ ++#ifdef DBUS_ENABLE_CYNARA ++ _dbus_assert (cynara->refcount > 0); ++ ++ cynara->refcount -= 1; ++ ++ if (cynara->refcount == 0) ++ { ++ cynara_async_finish(cynara->cynara); ++ dbus_free(cynara); ++ } ++#endif ++} ++ ++BusResult ++bus_cynara_check_privilege (BusCynara *cynara, ++ DBusMessage *message, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ const char *privilege, ++ BusDeferredMessageStatus check_type, ++ BusDeferredMessage **deferred_message_param) ++{ ++#ifdef DBUS_ENABLE_CYNARA ++ int result; ++ unsigned long uid; ++ char *label; ++ const char *session_id; ++ char user[32]; ++ cynara_check_id check_id; ++ DBusConnection *connection = check_type == BUS_DEFERRED_MESSAGE_CHECK_RECEIVE ? proposed_recipient : sender; ++ BusDeferredMessage *deferred_message; ++ BusResult ret; ++ ++ _dbus_assert(connection != NULL); ++ ++ if (dbus_connection_get_unix_user(connection, &uid) == FALSE) ++ return BUS_RESULT_FALSE; ++ ++ if (_dbus_connection_get_linux_security_label(connection, &label) == FALSE || label == NULL) ++ { ++ _dbus_warn("Failed to obtain security label for connection\n"); ++ return BUS_RESULT_FALSE; ++ } ++ ++ session_id = bus_connection_get_cynara_session_id (connection); ++ if (session_id == NULL) ++ { ++ ret = BUS_RESULT_FALSE; ++ goto out; ++ } ++ ++ snprintf(user, sizeof(user), "%lu", uid); ++ ++#if USE_CYNARA_CACHE ++ result = cynara_async_check_cache(cynara->cynara, label, session_id, user, privilege); ++#else ++ result = CYNARA_API_CACHE_MISS; ++#endif ++ ++ switch (result) ++ { ++ case CYNARA_API_ACCESS_ALLOWED: ++ _dbus_verbose("Cynara: got ALLOWED answer from cache (client=%s session_id=%s user=%s privilege=%s)\n", ++ label, session_id, user, privilege); ++ ret = BUS_RESULT_TRUE; ++ break; ++ ++ case CYNARA_API_ACCESS_DENIED: ++ _dbus_verbose("Cynara: got DENIED answer from cache (client=%s session_id=%s user=%s privilege=%s)\n", ++ label, session_id, user, privilege); ++ ret = BUS_RESULT_FALSE; ++ break; ++ ++ case CYNARA_API_CACHE_MISS: ++ deferred_message = bus_deferred_message_new(message, sender, addressed_recipient, ++ proposed_recipient, BUS_RESULT_LATER); ++ if (deferred_message == NULL) ++ { ++ _dbus_verbose("Failed to allocate memory for deferred message\n"); ++ ret = BUS_RESULT_FALSE; ++ goto out; ++ } ++ ++ /* callback is supposed to unref deferred_message*/ ++ result = cynara_async_create_request(cynara->cynara, label, session_id, user, privilege, &check_id, ++ &bus_cynara_check_response_callback, deferred_message); ++ if (result == CYNARA_API_SUCCESS) ++ { ++ _dbus_verbose("Created Cynara request: client=%s session_id=%s user=%s privilege=%s check_id=%u " ++ "deferred_message=%p\n", label, session_id, user, privilege, (unsigned int)check_id, deferred_message); ++ if (deferred_message_param != NULL) ++ *deferred_message_param = deferred_message; ++ ret = BUS_RESULT_LATER; ++ } ++ else ++ { ++ _dbus_verbose("Error on cynara request create: %i\n", result); ++ bus_deferred_message_unref(deferred_message); ++ ret = BUS_RESULT_FALSE; ++ } ++ break; ++ default: ++ _dbus_verbose("Error when accessing Cynara cache: %i\n", result); ++ ret = BUS_RESULT_FALSE; ++ } ++out: ++ dbus_free(label); ++ return ret; ++ ++#else ++ return BUS_RESULT_FALSE; ++#endif ++} ++ ++ ++ ++#ifdef DBUS_ENABLE_CYNARA ++static void ++status_callback(int old_fd, int new_fd, cynara_async_status status, ++ void *user_status_data) ++{ ++ BusCynara *cynara = (BusCynara *)user_status_data; ++ DBusLoop *loop = bus_context_get_loop(cynara->context); ++ ++ if (cynara->cynara_watch != NULL) ++ { ++ _dbus_loop_remove_watch(loop, cynara->cynara_watch); ++ _dbus_watch_invalidate(cynara->cynara_watch); ++ _dbus_watch_unref(cynara->cynara_watch); ++ cynara->cynara_watch = NULL; ++ } ++ ++ if (new_fd != -1) ++ { ++ unsigned int flags; ++ DBusWatch *watch; ++ ++ switch (status) ++ { ++ case CYNARA_STATUS_FOR_READ: ++ flags = DBUS_WATCH_READABLE; ++ break; ++ case CYNARA_STATUS_FOR_RW: ++ flags = DBUS_WATCH_READABLE | DBUS_WATCH_WRITABLE; ++ break; ++ default: ++ /* Cynara passed unknown status - warn and add RW watch */ ++ _dbus_verbose("Cynara passed unknown status value: 0x%08X\n", (unsigned int)status); ++ flags = DBUS_WATCH_READABLE | DBUS_WATCH_WRITABLE; ++ break; ++ } ++ ++ watch = _dbus_watch_new(new_fd, flags, TRUE, &bus_cynara_watch_callback, cynara, NULL); ++ if (watch != NULL) ++ { ++ if (_dbus_loop_add_watch(loop, watch) == TRUE) ++ { ++ cynara->cynara_watch = watch; ++ return; ++ } ++ ++ _dbus_watch_invalidate(watch); ++ _dbus_watch_unref(watch); ++ } ++ ++ /* It seems like not much can be done at this point. Cynara events won't be processed ++ * until next Cynara function call triggering status callback */ ++ _dbus_verbose("Failed to add dbus watch\n"); ++ } ++} ++ ++static dbus_bool_t ++bus_cynara_watch_callback(DBusWatch *watch, ++ unsigned int flags, ++ void *data) ++{ ++ BusCynara *cynara = (BusCynara *)data; ++ int result = cynara_async_process(cynara->cynara); ++ if (result != CYNARA_API_SUCCESS) ++ _dbus_verbose("cynara_async_process returned %d\n", result); ++ ++ return result != CYNARA_API_OUT_OF_MEMORY ? TRUE : FALSE; ++} ++ ++static inline const char * ++call_cause_to_string(cynara_async_call_cause cause) ++{ ++ switch (cause) ++ { ++ case CYNARA_CALL_CAUSE_ANSWER: ++ return "ANSWER"; ++ case CYNARA_CALL_CAUSE_CANCEL: ++ return "CANCEL"; ++ case CYNARA_CALL_CAUSE_FINISH: ++ return "FINSIH"; ++ case CYNARA_CALL_CAUSE_SERVICE_NOT_AVAILABLE: ++ return "SERVICE NOT AVAILABLE"; ++ default: ++ return "INVALID"; ++ } ++} ++ ++static void ++bus_cynara_check_response_callback (cynara_check_id check_id, ++ cynara_async_call_cause cause, ++ int response, ++ void *user_response_data) ++{ ++ BusDeferredMessage *deferred_message = user_response_data; ++ BusResult result; ++ ++ _dbus_verbose("Cynara callback: check_id=%u, cause=%s response=%i response_data=%p\n", ++ (unsigned int)check_id, call_cause_to_string(cause), response, user_response_data); ++ ++ if (deferred_message == NULL) ++ return; ++ ++ if (cause == CYNARA_CALL_CAUSE_ANSWER && response == CYNARA_API_ACCESS_ALLOWED) ++ result = BUS_RESULT_TRUE; ++ else ++ result = BUS_RESULT_FALSE; ++ ++ bus_deferred_message_response_received(deferred_message, result); ++ bus_deferred_message_unref(deferred_message); ++} ++ ++#endif /* DBUS_ENABLE_CYNARA */ +diff --git a/bus/cynara.h b/bus/cynara.h +new file mode 100644 +index 00000000..c4728bb7 +--- /dev/null ++++ b/bus/cynara.h +@@ -0,0 +1,37 @@ ++/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ ++/* cynara.h Cynara runtime privilege checking ++ * ++ * Copyright (c) 2014 Samsung Electronics, Ltd. ++ * ++ * 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 "bus.h" ++#include "check.h" ++ ++BusCynara *bus_cynara_new (BusCheck *check, DBusError *error); ++BusCynara *bus_cynara_ref (BusCynara *cynara); ++void bus_cynara_unref (BusCynara *cynara); ++BusResult bus_cynara_check_privilege (BusCynara *cynara, ++ DBusMessage *message, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ const char *privilege, ++ BusDeferredMessageStatus check_type, ++ BusDeferredMessage **deferred_message); +diff --git a/bus/dispatch.c b/bus/dispatch.c +index edfa1b44..05be3bdf 100644 +--- a/bus/dispatch.c ++++ b/bus/dispatch.c +@@ -25,6 +25,7 @@ + + #include <config.h> + #include "dispatch.h" ++#include "check.h" + #include "connection.h" + #include "driver.h" + #include "services.h" +@@ -64,13 +65,17 @@ send_one_message (DBusConnection *connection, + DBusError *error) + { + DBusError stack_error = DBUS_ERROR_INIT; ++ BusDeferredMessage *deferred_message; ++ BusResult result; + +- if (!bus_context_check_security_policy (context, transaction, ++ result = bus_context_check_security_policy (context, transaction, + sender, + addressed_recipient, + connection, + message, +- &stack_error)) ++ &stack_error, ++ &deferred_message); ++ if (result != BUS_RESULT_TRUE) + { + if (!bus_transaction_capture_error_reply (transaction, &stack_error, + message)) +@@ -129,6 +134,7 @@ bus_dispatch_matches (BusTransaction *transaction, + BusMatchmaker *matchmaker; + DBusList *link; + BusContext *context; ++ BusDeferredMessage *deferred_message; + + _DBUS_ASSERT_ERROR_IS_CLEAR (error); + +@@ -144,11 +150,21 @@ bus_dispatch_matches (BusTransaction *transaction, + /* First, send the message to the addressed_recipient, if there is one. */ + if (addressed_recipient != NULL) + { +- if (!bus_context_check_security_policy (context, transaction, +- sender, addressed_recipient, +- addressed_recipient, +- message, error)) ++ BusResult res; ++ res = bus_context_check_security_policy (context, transaction, ++ sender, addressed_recipient, ++ addressed_recipient, ++ message, error, ++ &deferred_message); ++ if (res == BUS_RESULT_FALSE) + return FALSE; ++ else if (res == BUS_RESULT_LATER) ++ { ++ dbus_set_error (error, ++ DBUS_ERROR_ACCESS_DENIED, ++ "Rejecting message because time is needed to check security policy"); ++ return FALSE; ++ } + + if (dbus_message_contains_unix_fds (message) && + !dbus_connection_can_send_type (addressed_recipient, +@@ -379,12 +395,24 @@ bus_dispatch (DBusConnection *connection, + if (service_name && + strcmp (service_name, DBUS_SERVICE_DBUS) == 0) /* to bus driver */ + { +- if (!bus_context_check_security_policy (context, transaction, +- connection, NULL, NULL, message, &error)) ++ BusDeferredMessage *deferred_message; ++ BusResult res; ++ res = bus_context_check_security_policy (context, transaction, ++ connection, NULL, NULL, message, &error, ++ &deferred_message); ++ if (res == BUS_RESULT_FALSE) + { + _dbus_verbose ("Security policy rejected message\n"); + goto out; + } ++ else if (res == BUS_RESULT_LATER) ++ { ++ dbus_set_error (&error, ++ DBUS_ERROR_ACCESS_DENIED, ++ "Rejecting message because time is needed to check security policy"); ++ _dbus_verbose ("Security policy needs time to check policy. Dropping message\n"); ++ goto out; ++ } + + _dbus_verbose ("Giving message to %s\n", DBUS_SERVICE_DBUS); + if (!bus_driver_handle_message (connection, transaction, message, &error)) +diff --git a/bus/policy.c b/bus/policy.c +index 082f3853..bcade176 100644 +--- a/bus/policy.c ++++ b/bus/policy.c +@@ -22,6 +22,7 @@ + */ + + #include <config.h> ++#include "check.h" + #include "policy.h" + #include "services.h" + #include "test.h" +@@ -32,7 +33,7 @@ + + BusPolicyRule* + bus_policy_rule_new (BusPolicyRuleType type, +- dbus_bool_t allow) ++ BusPolicyRuleAccess access) + { + BusPolicyRule *rule; + +@@ -42,7 +43,7 @@ bus_policy_rule_new (BusPolicyRuleType type, + + rule->type = type; + rule->refcount = 1; +- rule->allow = allow; ++ rule->access = access; + + switch (rule->type) + { +@@ -54,18 +55,19 @@ bus_policy_rule_new (BusPolicyRuleType type, + break; + case BUS_POLICY_RULE_SEND: + rule->d.send.message_type = DBUS_MESSAGE_TYPE_INVALID; +- + /* allow rules default to TRUE (only requested replies allowed) ++ * check rules default to TRUE (only requested replies are checked) + * deny rules default to FALSE (only unrequested replies denied) + */ +- rule->d.send.requested_reply = rule->allow; ++ rule->d.send.requested_reply = rule->access != BUS_POLICY_RULE_ACCESS_DENY; + break; + case BUS_POLICY_RULE_RECEIVE: + rule->d.receive.message_type = DBUS_MESSAGE_TYPE_INVALID; + /* allow rules default to TRUE (only requested replies allowed) ++ * check rules default to TRUE (only requested replies are checked) + * deny rules default to FALSE (only unrequested replies denied) + */ +- rule->d.receive.requested_reply = rule->allow; ++ rule->d.receive.requested_reply = rule->access != BUS_POLICY_RULE_ACCESS_DENY; + break; + case BUS_POLICY_RULE_OWN: + break; +@@ -117,7 +119,8 @@ bus_policy_rule_unref (BusPolicyRule *rule) + case BUS_POLICY_RULE_GROUP: + break; + } +- ++ ++ dbus_free (rule->privilege); + dbus_free (rule); + } + } +@@ -427,7 +430,10 @@ list_allows_user (dbus_bool_t def, + else + continue; + +- allowed = rule->allow; ++ /* We don't intend to support <check user="..." /> and <check group="..." /> ++ rules. They are treated like deny. ++ */ ++ allowed = rule->access == BUS_POLICY_RULE_ACCESS_ALLOW; + } + + return allowed; +@@ -862,18 +868,23 @@ bus_client_policy_append_rule (BusClientPolicy *policy, + return TRUE; + } + +-dbus_bool_t +-bus_client_policy_check_can_send (BusClientPolicy *policy, +- BusRegistry *registry, +- dbus_bool_t requested_reply, +- DBusConnection *receiver, +- DBusMessage *message, +- dbus_int32_t *toggles, +- dbus_bool_t *log) ++BusResult ++bus_client_policy_check_can_send (DBusConnection *sender, ++ BusClientPolicy *policy, ++ BusRegistry *registry, ++ dbus_bool_t requested_reply, ++ DBusConnection *addressed_recipient, ++ DBusConnection *receiver, ++ DBusMessage *message, ++ dbus_int32_t *toggles, ++ dbus_bool_t *log, ++ const char **privilege_param, ++ BusDeferredMessage **deferred_message) + { + DBusList *link; +- dbus_bool_t allowed; +- ++ BusResult result; ++ const char *privilege; ++ + /* policy->rules is in the order the rules appeared + * in the config file, i.e. last rule that applies wins + */ +@@ -881,7 +892,7 @@ bus_client_policy_check_can_send (BusClientPolicy *policy, + _dbus_verbose (" (policy) checking send rules\n"); + *toggles = 0; + +- allowed = FALSE; ++ result = BUS_RESULT_FALSE; + link = _dbus_list_get_first_link (&policy->rules); + while (link != NULL) + { +@@ -912,13 +923,14 @@ bus_client_policy_check_can_send (BusClientPolicy *policy, + /* If it's a reply, the requested_reply flag kicks in */ + if (dbus_message_get_reply_serial (message) != 0) + { +- /* for allow, requested_reply=true means the rule applies +- * only when reply was requested. requested_reply=false means +- * always allow. ++ /* for allow or check requested_reply=true means the rule applies ++ * only when reply was requested. requested_reply=false means the ++ * rule always applies + */ +- if (!requested_reply && rule->allow && rule->d.send.requested_reply && !rule->d.send.eavesdrop) ++ if (!requested_reply && rule->access != BUS_POLICY_RULE_ACCESS_DENY && rule->d.send.requested_reply && !rule->d.send.eavesdrop) + { +- _dbus_verbose (" (policy) skipping allow rule since it only applies to requested replies and does not allow eavesdropping\n"); ++ _dbus_verbose (" (policy) skipping %s rule since it only applies to requested replies and does not allow eavesdropping\n", ++ rule->access == BUS_POLICY_RULE_ACCESS_ALLOW ? "allow" : "check"); + continue; + } + +@@ -926,7 +938,7 @@ bus_client_policy_check_can_send (BusClientPolicy *policy, + * when the reply was not requested. requested_reply=true means the + * rule always applies. + */ +- if (requested_reply && !rule->allow && !rule->d.send.requested_reply) ++ if (requested_reply && rule->access == BUS_POLICY_RULE_ACCESS_DENY && !rule->d.send.requested_reply) + { + _dbus_verbose (" (policy) skipping deny rule since it only applies to unrequested replies\n"); + continue; +@@ -949,13 +961,15 @@ bus_client_policy_check_can_send (BusClientPolicy *policy, + /* The interface is optional in messages. For allow rules, if the message + * has no interface we want to skip the rule (and thus not allow); + * for deny rules, if the message has no interface we want to use the +- * rule (and thus deny). ++ * rule (and thus deny). Check rules are meant to be used like allow ++ * rules (they can grant access, but not remove it), so we treat it like ++ * allow here. + */ + dbus_bool_t no_interface; + + no_interface = dbus_message_get_interface (message) == NULL; + +- if ((no_interface && rule->allow) || ++ if ((no_interface && rule->access != BUS_POLICY_RULE_ACCESS_DENY) || + (!no_interface && + strcmp (dbus_message_get_interface (message), + rule->d.send.interface) != 0)) +@@ -1029,33 +1043,63 @@ bus_client_policy_check_can_send (BusClientPolicy *policy, + } + + /* Use this rule */ +- allowed = rule->allow; ++ switch (rule->access) ++ { ++ case BUS_POLICY_RULE_ACCESS_ALLOW: ++ result = BUS_RESULT_TRUE; ++ break; ++ case BUS_POLICY_RULE_ACCESS_DENY: ++ result = BUS_RESULT_FALSE; ++ break; ++ case BUS_POLICY_RULE_ACCESS_CHECK: ++ result = BUS_RESULT_LATER; ++ privilege = rule->privilege; ++ break; ++ } ++ + *log = rule->d.send.log; + (*toggles)++; + +- _dbus_verbose (" (policy) used rule, allow now = %d\n", +- allowed); ++ _dbus_verbose (" (policy) used rule, result now = %d\n", ++ (int)(intptr_t)result); + } + +- return allowed; ++ if (result == BUS_RESULT_LATER) ++ { ++ BusContext *context = bus_connection_get_context(sender); ++ BusCheck *check = bus_context_get_check(context); ++ ++ result = bus_check_privilege(check, message, sender, addressed_recipient, receiver, ++ privilege, BUS_DEFERRED_MESSAGE_CHECK_SEND, deferred_message); ++ } ++ else ++ privilege = NULL; ++ ++ if (privilege_param != NULL) ++ *privilege_param = privilege; ++ ++ return result; + } + + /* See docs on what the args mean on bus_context_check_security_policy() + * comment + */ +-dbus_bool_t +-bus_client_policy_check_can_receive (BusClientPolicy *policy, +- BusRegistry *registry, +- dbus_bool_t requested_reply, +- DBusConnection *sender, +- DBusConnection *addressed_recipient, +- DBusConnection *proposed_recipient, +- DBusMessage *message, +- dbus_int32_t *toggles) ++BusResult ++bus_client_policy_check_can_receive (BusClientPolicy *policy, ++ BusRegistry *registry, ++ dbus_bool_t requested_reply, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ DBusMessage *message, ++ dbus_int32_t *toggles, ++ const char **privilege_param, ++ BusDeferredMessage **deferred_message) + { + DBusList *link; +- dbus_bool_t allowed; + dbus_bool_t eavesdropping; ++ BusResult result; ++ const char *privilege; + + eavesdropping = + addressed_recipient != proposed_recipient && +@@ -1068,7 +1112,7 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy, + _dbus_verbose (" (policy) checking receive rules, eavesdropping = %d\n", eavesdropping); + *toggles = 0; + +- allowed = FALSE; ++ result = BUS_RESULT_FALSE; + link = _dbus_list_get_first_link (&policy->rules); + while (link != NULL) + { +@@ -1091,19 +1135,21 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy, + } + } + +- /* for allow, eavesdrop=false means the rule doesn't apply when +- * eavesdropping. eavesdrop=true means always allow. ++ ++ /* for allow or check, eavesdrop=false means the rule doesn't apply when ++ * eavesdropping. eavesdrop=true means the rule always applies + */ +- if (eavesdropping && rule->allow && !rule->d.receive.eavesdrop) ++ if (eavesdropping && rule->access != BUS_POLICY_RULE_ACCESS_DENY && !rule->d.receive.eavesdrop) + { +- _dbus_verbose (" (policy) skipping allow rule since it doesn't apply to eavesdropping\n"); ++ _dbus_verbose (" (policy) skipping %s rule since it doesn't apply to eavesdropping\n", ++ rule->access == BUS_POLICY_RULE_ACCESS_ALLOW ? "allow" : "check"); + continue; + } + + /* for deny, eavesdrop=true means the rule applies only when + * eavesdropping; eavesdrop=false means always deny. + */ +- if (!eavesdropping && !rule->allow && rule->d.receive.eavesdrop) ++ if (!eavesdropping && rule->access == BUS_POLICY_RULE_ACCESS_DENY && rule->d.receive.eavesdrop) + { + _dbus_verbose (" (policy) skipping deny rule since it only applies to eavesdropping\n"); + continue; +@@ -1112,13 +1158,14 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy, + /* If it's a reply, the requested_reply flag kicks in */ + if (dbus_message_get_reply_serial (message) != 0) + { +- /* for allow, requested_reply=true means the rule applies +- * only when reply was requested. requested_reply=false means +- * always allow. ++ /* for allow or check requested_reply=true means the rule applies ++ * only when reply was requested. requested_reply=false means the ++ * rule always applies + */ +- if (!requested_reply && rule->allow && rule->d.receive.requested_reply && !rule->d.receive.eavesdrop) ++ if (!requested_reply && rule->access != BUS_POLICY_RULE_ACCESS_DENY && rule->d.send.requested_reply && !rule->d.send.eavesdrop) + { +- _dbus_verbose (" (policy) skipping allow rule since it only applies to requested replies and does not allow eavesdropping\n"); ++ _dbus_verbose (" (policy) skipping %s rule since it only applies to requested replies and does not allow eavesdropping\n", ++ rule->access == BUS_POLICY_RULE_ACCESS_DENY ? "allow" : "deny"); + continue; + } + +@@ -1126,7 +1173,7 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy, + * when the reply was not requested. requested_reply=true means the + * rule always applies. + */ +- if (requested_reply && !rule->allow && !rule->d.receive.requested_reply) ++ if (requested_reply && rule->access == BUS_POLICY_RULE_ACCESS_DENY && !rule->d.receive.requested_reply) + { + _dbus_verbose (" (policy) skipping deny rule since it only applies to unrequested replies\n"); + continue; +@@ -1149,13 +1196,13 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy, + /* The interface is optional in messages. For allow rules, if the message + * has no interface we want to skip the rule (and thus not allow); + * for deny rules, if the message has no interface we want to use the +- * rule (and thus deny). ++ * rule (and thus deny). Check rules are treated like allow rules. + */ + dbus_bool_t no_interface; + + no_interface = dbus_message_get_interface (message) == NULL; + +- if ((no_interface && rule->allow) || ++ if ((no_interface && rule->access != BUS_POLICY_RULE_ACCESS_DENY) || + (!no_interface && + strcmp (dbus_message_get_interface (message), + rule->d.receive.interface) != 0)) +@@ -1230,14 +1277,42 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy, + } + + /* Use this rule */ +- allowed = rule->allow; ++ switch (rule->access) ++ { ++ case BUS_POLICY_RULE_ACCESS_ALLOW: ++ result = BUS_RESULT_TRUE; ++ break; ++ case BUS_POLICY_RULE_ACCESS_DENY: ++ result = BUS_RESULT_FALSE; ++ break; ++ case BUS_POLICY_RULE_ACCESS_CHECK: ++ result = BUS_RESULT_LATER; ++ privilege = rule->privilege; ++ break; ++ } ++ + (*toggles)++; + +- _dbus_verbose (" (policy) used rule, allow now = %d\n", +- allowed); ++ _dbus_verbose (" (policy) used rule, result now = %d\n", ++ (int)(intptr_t)result); + } + +- return allowed; ++ ++ if (result == BUS_RESULT_LATER) ++ { ++ BusContext *context = bus_connection_get_context(proposed_recipient); ++ BusCheck *check = bus_context_get_check(context); ++ ++ result = bus_check_privilege(check, message, sender, addressed_recipient, proposed_recipient, ++ privilege, BUS_DEFERRED_MESSAGE_CHECK_RECEIVE, deferred_message); ++ } ++ else ++ privilege = NULL; ++ ++ if (privilege_param != NULL) ++ *privilege_param = privilege; ++ ++ return result; + } + + +@@ -1289,7 +1364,7 @@ bus_rules_check_can_own (DBusList *rules, + } + + /* Use this rule */ +- allowed = rule->allow; ++ allowed = rule->access == BUS_POLICY_RULE_ACCESS_ALLOW; + } + + return allowed; +diff --git a/bus/policy.h b/bus/policy.h +index d1d3e72b..e9f193af 100644 +--- a/bus/policy.h ++++ b/bus/policy.h +@@ -39,6 +39,14 @@ typedef enum + BUS_POLICY_RULE_GROUP + } BusPolicyRuleType; + ++typedef enum ++{ ++ BUS_POLICY_RULE_ACCESS_DENY, ++ BUS_POLICY_RULE_ACCESS_ALLOW, ++ /** runtime check resulting in allow or deny */ ++ BUS_POLICY_RULE_ACCESS_CHECK ++} BusPolicyRuleAccess; ++ + /** determines whether the rule affects a connection, or some global item */ + #define BUS_POLICY_RULE_IS_PER_CLIENT(rule) (!((rule)->type == BUS_POLICY_RULE_USER || \ + (rule)->type == BUS_POLICY_RULE_GROUP)) +@@ -49,8 +57,9 @@ struct BusPolicyRule + + BusPolicyRuleType type; + +- unsigned int allow : 1; /**< #TRUE if this allows, #FALSE if it denies */ +- ++ unsigned int access : 2; /**< BusPolicyRuleAccess */ ++ char *privilege; /**< for BUS_POLICY_RULE_ACCESS_CHECK */ ++ + union + { + struct +@@ -106,7 +115,7 @@ struct BusPolicyRule + }; + + BusPolicyRule* bus_policy_rule_new (BusPolicyRuleType type, +- dbus_bool_t allow); ++ BusPolicyRuleAccess access); + BusPolicyRule* bus_policy_rule_ref (BusPolicyRule *rule); + void bus_policy_rule_unref (BusPolicyRule *rule); + +@@ -140,21 +149,27 @@ dbus_bool_t bus_policy_merge (BusPolicy *policy, + BusClientPolicy* bus_client_policy_new (void); + BusClientPolicy* bus_client_policy_ref (BusClientPolicy *policy); + void bus_client_policy_unref (BusClientPolicy *policy); +-dbus_bool_t bus_client_policy_check_can_send (BusClientPolicy *policy, +- BusRegistry *registry, +- dbus_bool_t requested_reply, +- DBusConnection *receiver, +- DBusMessage *message, +- dbus_int32_t *toggles, +- dbus_bool_t *log); +-dbus_bool_t bus_client_policy_check_can_receive (BusClientPolicy *policy, +- BusRegistry *registry, +- dbus_bool_t requested_reply, +- DBusConnection *sender, +- DBusConnection *addressed_recipient, +- DBusConnection *proposed_recipient, +- DBusMessage *message, +- dbus_int32_t *toggles); ++BusResult bus_client_policy_check_can_send (DBusConnection *sender, ++ BusClientPolicy *policy, ++ BusRegistry *registry, ++ dbus_bool_t requested_reply, ++ DBusConnection *addressed_recipient, ++ DBusConnection *receiver, ++ DBusMessage *message, ++ dbus_int32_t *toggles, ++ dbus_bool_t *log, ++ const char **privilege_param, ++ BusDeferredMessage **deferred_message); ++BusResult bus_client_policy_check_can_receive (BusClientPolicy *policy, ++ BusRegistry *registry, ++ dbus_bool_t requested_reply, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusConnection *proposed_recipient, ++ DBusMessage *message, ++ dbus_int32_t *toggles, ++ const char **privilege_param, ++ BusDeferredMessage **deferred_message); + dbus_bool_t bus_client_policy_check_can_own (BusClientPolicy *policy, + const DBusString *service_name); + dbus_bool_t bus_client_policy_append_rule (BusClientPolicy *policy, +diff --git a/configure.ac b/configure.ac +index 71e3515c..f3a2ffc1 100644 +--- a/configure.ac ++++ b/configure.ac +@@ -1873,6 +1873,17 @@ AC_ARG_ENABLE([user-session], + AM_CONDITIONAL([DBUS_ENABLE_USER_SESSION], + [test "x$enable_user_session" = xyes]) + ++#enable cynara integration ++AC_ARG_ENABLE([cynara], [AS_HELP_STRING([--enable-cynara], [enable Cynara integration])], [], [enable_cynara=no]) ++if test "x$enable_cynara" = xyes; then ++ PKG_CHECK_MODULES([CYNARA], [cynara-client-async >= 0.6.0 cynara-session >= 0.6.0], ++ [AC_DEFINE([DBUS_ENABLE_CYNARA], [1], [Define to enable Cynara privilege checks in dbus-daemon])], ++ [AC_MSG_ERROR([libcynara-client-async and cynara-session are required to enable Cynara integration])]) ++fi ++ ++AC_SUBST([CYNARA_CFLAGS]) ++AC_SUBST([CYNARA_LIBS]) ++ + AC_CONFIG_FILES([ + Doxyfile + dbus/Version +@@ -1952,6 +1963,7 @@ echo " + Building bus stats API: ${enable_stats} + Building SELinux support: ${have_selinux} + Building AppArmor support: ${have_apparmor} ++ Building Cynara support: ${enable_cynara} + Building inotify support: ${have_inotify} + Building kqueue support: ${have_kqueue} + Building systemd support: ${have_systemd} +diff --git a/test/Makefile.am b/test/Makefile.am +index 914dd7f2..86882537 100644 +--- a/test/Makefile.am ++++ b/test/Makefile.am +@@ -341,6 +341,7 @@ in_data = \ + data/valid-config-files/debug-allow-all.conf.in \ + data/valid-config-files/finite-timeout.conf.in \ + data/valid-config-files/forbidding.conf.in \ ++ data/valid-config-files/debug-check-some.conf.in \ + data/valid-config-files/incoming-limit.conf.in \ + data/valid-config-files/multi-user.conf.in \ + data/valid-config-files/systemd-activation.conf.in \ +diff --git a/test/data/invalid-config-files/badcheck-1.conf b/test/data/invalid-config-files/badcheck-1.conf +new file mode 100644 +index 00000000..fad9f502 +--- /dev/null ++++ b/test/data/invalid-config-files/badcheck-1.conf +@@ -0,0 +1,9 @@ ++<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN" ++ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd"> ++<busconfig> ++ <user>mybususer</user> ++ <listen>unix:path=/foo/bar</listen> ++ <policy context="default"> ++ <allow privilege="foo" send_destination="*"/> <!-- extra privilege="foo" --> ++ </policy> ++</busconfig> +diff --git a/test/data/invalid-config-files/badcheck-2.conf b/test/data/invalid-config-files/badcheck-2.conf +new file mode 100644 +index 00000000..63c7ef25 +--- /dev/null ++++ b/test/data/invalid-config-files/badcheck-2.conf +@@ -0,0 +1,9 @@ ++<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN" ++ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd"> ++<busconfig> ++ <user>mybususer</user> ++ <listen>unix:path=/foo/bar</listen> ++ <policy context="default"> ++ <check send_destination="*"/> <!-- missing privilege="foo" --> ++ </policy> ++</busconfig> +diff --git a/test/data/valid-config-files/check-1.conf b/test/data/valid-config-files/check-1.conf +new file mode 100644 +index 00000000..ad714733 +--- /dev/null ++++ b/test/data/valid-config-files/check-1.conf +@@ -0,0 +1,9 @@ ++<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN" ++ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd"> ++<busconfig> ++ <user>mybususer</user> ++ <listen>unix:path=/foo/bar</listen> ++ <policy context="default"> ++ <check privilege="foo" send_destination="*"/> ++ </policy> ++</busconfig> +diff --git a/test/data/valid-config-files/debug-check-some.conf.in b/test/data/valid-config-files/debug-check-some.conf.in +new file mode 100644 +index 00000000..47ee8548 +--- /dev/null ++++ b/test/data/valid-config-files/debug-check-some.conf.in +@@ -0,0 +1,18 @@ ++<!-- Bus that listens on a debug pipe and doesn't create any restrictions --> ++ ++<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN" ++ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd"> ++<busconfig> ++ <listen>debug-pipe:name=test-server</listen> ++ <listen>@TEST_LISTEN@</listen> ++ <servicedir>@DBUS_TEST_DATA@/valid-service-files</servicedir> ++ <policy context="default"> ++ <allow send_interface="*"/> ++ <allow receive_interface="*"/> ++ <allow own="*"/> ++ <allow user="*"/> ++ ++ <deny send_interface="org.freedesktop.TestSuite" send_member="Echo"/> ++ <check privilege="foo" send_interface="org.freedesktop.TestSuite" send_member="Echo"/> ++ </policy> ++</busconfig> +diff --git a/tools/dbus-send.c b/tools/dbus-send.c +index 0dc1f5b3..76ddab3f 100644 +--- a/tools/dbus-send.c ++++ b/tools/dbus-send.c +@@ -458,7 +458,7 @@ main (int argc, char *argv[]) + char *arg; + char *c; + int type; +- int secondary_type; ++ int secondary_type = 0; + int container_type; + DBusMessageIter *target_iter; + DBusMessageIter container_iter; +-- +2.14.3 + diff --git a/meta-security/recipes-core/dbus-cynara/dbus/0002-Disable-message-dispatching-when-send-rule-result-is.patch b/meta-security/recipes-core/dbus-cynara/dbus/0002-Disable-message-dispatching-when-send-rule-result-is.patch new file mode 100644 index 000000000..b1c3f3fdc --- /dev/null +++ b/meta-security/recipes-core/dbus-cynara/dbus/0002-Disable-message-dispatching-when-send-rule-result-is.patch @@ -0,0 +1,962 @@ +From 9bea6ec0497391b6af41daca18d7868af2656cef Mon Sep 17 00:00:00 2001 +From: Jacek Bukarewicz <j.bukarewicz@samsung.com> +Date: Fri, 28 Nov 2014 12:07:39 +0100 +Subject: [PATCH 2/5] Disable message dispatching when send rule result is not + known +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +When unicast message is sent to addressed recipient and policy result +is not available message dispatch from the sender is disabled. +This also means that any further messages from the given connection are +put into the incoming queue without being processed. If response is received +message dispatching is resumed. This time answer is attached to the message +which is now processed synchronously. +Receive rule result unavailability is not yet handled - such messages are +rejected. Also, if message is sent to non-addressed recipient and policy result +is unknown, message is silently dropped. + +Change-Id: I57eccbf973525fd51369c7d4e58908292f44da80 + +Cherry-picked from b1b87ad9f20b2052c28431b48e81073078a745ce +by Jose Bollo. + +Signed-off-by: José Bollo <jose.bollo@iot.bzh> +--- + bus/activation.c | 78 +++++++++++++++-- + bus/check.c | 109 ++++++++++++++++++++++-- + bus/check.h | 10 +++ + bus/cynara.c | 1 - + bus/dispatch.c | 184 ++++++++++++++++++++++++++++++++++++---- + bus/dispatch.h | 2 +- + bus/driver.c | 12 ++- + dbus/dbus-connection-internal.h | 15 ++++ + dbus/dbus-connection.c | 125 +++++++++++++++++++++++++-- + dbus/dbus-list.c | 29 +++++++ + dbus/dbus-list.h | 3 + + dbus/dbus-shared.h | 3 +- + 12 files changed, 528 insertions(+), 43 deletions(-) + +diff --git a/bus/activation.c b/bus/activation.c +index 1a98af6d..343d3f22 100644 +--- a/bus/activation.c ++++ b/bus/activation.c +@@ -31,6 +31,7 @@ + #include "services.h" + #include "test.h" + #include "utils.h" ++#include <dbus/dbus-connection-internal.h> + #include <dbus/dbus-internals.h> + #include <dbus/dbus-hash.h> + #include <dbus/dbus-list.h> +@@ -91,6 +92,8 @@ struct BusPendingActivationEntry + DBusConnection *connection; + + dbus_bool_t auto_activation; ++ ++ dbus_bool_t is_put_back; + }; + + typedef struct +@@ -1180,20 +1183,23 @@ bus_activation_send_pending_auto_activation_messages (BusActivation *activation + BusPendingActivationEntry *entry = link->data; + DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link); + +- if (entry->auto_activation && (entry->connection == NULL || dbus_connection_get_is_connected (entry->connection))) ++ if (entry->auto_activation && !entry->is_put_back && ++ (entry->connection == NULL || dbus_connection_get_is_connected (entry->connection))) + { + DBusConnection *addressed_recipient; + DBusError error; ++ BusResult res; + + dbus_error_init (&error); + + addressed_recipient = bus_service_get_primary_owners_connection (service); + + /* Resume dispatching where we left off in bus_dispatch() */ +- if (!bus_dispatch_matches (transaction, +- entry->connection, +- addressed_recipient, +- entry->activation_message, &error)) ++ res = bus_dispatch_matches (transaction, ++ entry->connection, ++ addressed_recipient, ++ entry->activation_message, &error); ++ if (res == BUS_RESULT_FALSE) + { + /* If permission is denied, we just want to return the error + * to the original method invoker; in particular, we don't +@@ -1205,9 +1211,40 @@ bus_activation_send_pending_auto_activation_messages (BusActivation *activation + bus_connection_send_oom_error (entry->connection, + entry->activation_message); + } ++ } ++ else if (res == BUS_RESULT_LATER) ++ { ++ DBusList *putback_message_link = link; ++ DBusMessage *last_inserted_message = NULL; ++ ++ /* NULL entry->connection implies sending pending ActivationRequest message to systemd */ ++ if (entry->connection == NULL) ++ { ++ _dbus_assert_not_reached ("bus_dispatch_matches returned BUS_RESULT_LATER unexpectedly when sender is NULL"); ++ link = next; ++ continue; ++ } + +- link = next; +- continue; ++ /** ++ * Getting here means that policy check result is not yet available and dispatching ++ * messages from entry->connection has been disabled. ++ * Let's put back all messages for the given connection in the incoming queue and mark ++ * this entry as put back so they are not handled twice. ++ */ ++ while (putback_message_link != NULL) ++ { ++ BusPendingActivationEntry *putback_message = putback_message_link->data; ++ if (putback_message->connection == entry->connection) ++ { ++ if (!_dbus_connection_putback_message (putback_message->connection, last_inserted_message, ++ putback_message->activation_message, &error)) ++ goto error; ++ last_inserted_message = putback_message->activation_message; ++ putback_message->is_put_back = TRUE; ++ } ++ ++ putback_message_link = _dbus_list_get_next_link(&pending_activation->entries, putback_message_link); ++ } + } + } + +@@ -1225,6 +1262,19 @@ bus_activation_send_pending_auto_activation_messages (BusActivation *activation + return TRUE; + + error: ++ /* remove all messages that have been put to connections' incoming queues */ ++ link = _dbus_list_get_first_link (&pending_activation->entries); ++ while (link != NULL) ++ { ++ BusPendingActivationEntry *entry = link->data; ++ if (entry->is_put_back) ++ { ++ _dbus_connection_remove_message(entry->connection, entry->activation_message); ++ entry->is_put_back = FALSE; ++ } ++ link = _dbus_list_get_next_link(&pending_activation->entries, link); ++ } ++ + return FALSE; + } + +@@ -2028,13 +2078,23 @@ bus_activation_activate_service (BusActivation *activation, + + if (service != NULL) + { ++ BusResult res; + bus_context_log (activation->context, + DBUS_SYSTEM_LOG_INFO, "Activating via systemd: service name='%s' unit='%s'", + service_name, + entry->systemd_service); + /* Wonderful, systemd is connected, let's just send the msg */ +- retval = bus_dispatch_matches (activation_transaction, NULL, bus_service_get_primary_owners_connection (service), +- message, error); ++ res = bus_dispatch_matches (activation_transaction, NULL, bus_service_get_primary_owners_connection (service), ++ message, error); ++ ++ if (res == BUS_RESULT_TRUE) ++ retval = TRUE; ++ else ++ { ++ retval = FALSE; ++ if (res == BUS_RESULT_LATER) ++ _dbus_verbose("Unexpectedly need time to check message from bus driver to systemd - dropping the message.\n"); ++ } + } + else + { +diff --git a/bus/check.c b/bus/check.c +index 5b72d31c..4b8a6994 100644 +--- a/bus/check.c ++++ b/bus/check.c +@@ -55,6 +55,8 @@ typedef struct BusDeferredMessage + BusCheckResponseFunc response_callback; + } BusDeferredMessage; + ++static dbus_int32_t deferred_message_data_slot = -1; ++ + BusCheck * + bus_check_new (BusContext *context, DBusError *error) + { +@@ -67,11 +69,19 @@ bus_check_new (BusContext *context, DBusError *error) + return NULL; + } + ++ if (!dbus_message_allocate_data_slot(&deferred_message_data_slot)) ++ { ++ dbus_free(check); ++ BUS_SET_OOM(error); ++ return NULL; ++ } ++ + check->refcount = 1; + check->context = context; + check->cynara = bus_cynara_new(check, error); + if (dbus_error_is_set(error)) + { ++ dbus_message_free_data_slot(&deferred_message_data_slot); + dbus_free(check); + return NULL; + } +@@ -98,6 +108,7 @@ bus_check_unref (BusCheck *check) + if (check->refcount == 0) + { + bus_cynara_unref(check->cynara); ++ dbus_message_free_data_slot(&deferred_message_data_slot); + dbus_free(check); + } + } +@@ -114,6 +125,45 @@ bus_check_get_cynara (BusCheck *check) + return check->cynara; + } + ++static void ++bus_check_enable_dispatch_callback (BusDeferredMessage *deferred_message, ++ BusResult result) ++{ ++ _dbus_verbose("bus_check_enable_dispatch_callback called deferred_message=%p\n", deferred_message); ++ ++ deferred_message->response = result; ++ _dbus_connection_enable_dispatch(deferred_message->sender); ++} ++ ++static void ++deferred_message_free_function(void *data) ++{ ++ BusDeferredMessage *deferred_message = (BusDeferredMessage *)data; ++ bus_deferred_message_unref(deferred_message); ++} ++ ++void ++bus_deferred_message_disable_sender (BusDeferredMessage *deferred_message) ++{ ++ _dbus_assert(deferred_message != NULL); ++ _dbus_assert(deferred_message->sender != NULL); ++ ++ if (dbus_message_get_data(deferred_message->message, deferred_message_data_slot) == NULL) ++ { ++ if (dbus_message_set_data(deferred_message->message, deferred_message_data_slot, deferred_message, ++ deferred_message_free_function)) ++ bus_deferred_message_ref(deferred_message); ++ } ++ ++ _dbus_connection_disable_dispatch(deferred_message->sender); ++ deferred_message->response_callback = bus_check_enable_dispatch_callback; ++} ++ ++#ifdef DBUS_ENABLE_EMBEDDED_TESTS ++BusResult (*bus_check_test_override) (DBusConnection *connection, ++ const char *privilege); ++#endif ++ + BusResult + bus_check_privilege (BusCheck *check, + DBusMessage *message, +@@ -124,6 +174,7 @@ bus_check_privilege (BusCheck *check, + BusDeferredMessageStatus check_type, + BusDeferredMessage **deferred_message) + { ++ BusDeferredMessage *previous_deferred_message; + BusResult result = BUS_RESULT_FALSE; + #ifdef DBUS_ENABLE_CYNARA + BusCynara *cynara; +@@ -137,16 +188,54 @@ bus_check_privilege (BusCheck *check, + return BUS_RESULT_FALSE; + } + +- /* ask policy checkers */ +-#ifdef DBUS_ENABLE_CYNARA +- cynara = bus_check_get_cynara(check); +- result = bus_cynara_check_privilege(cynara, message, sender, addressed_recipient, +- proposed_recipient, privilege, check_type, deferred_message); ++#ifdef DBUS_ENABLE_EMBEDDED_TESTS ++ if (bus_check_test_override) ++ return bus_check_test_override (connection, privilege); + #endif + +- if (result == BUS_RESULT_LATER && deferred_message != NULL) ++ previous_deferred_message = dbus_message_get_data(message, deferred_message_data_slot); ++ /* check if message blocked at sender's queue is being processed */ ++ if (previous_deferred_message != NULL) ++ { ++ if ((check_type & BUS_DEFERRED_MESSAGE_CHECK_SEND) && ++ !(previous_deferred_message->status & BUS_DEFERRED_MESSAGE_CHECK_SEND)) ++ { ++ /** ++ * Message has been deferred due to receive or own rule which means that sending this message ++ * is allowed - it must have been checked previously. ++ * This might happen when client calls RequestName method which depending on security ++ * policy might result in both "can_send" and "can_own" Cynara checks. ++ */ ++ result = BUS_RESULT_TRUE; ++ } ++ else ++ { ++ result = previous_deferred_message->response; ++ if (result == BUS_RESULT_LATER) ++ { ++ /* result is still not known - reuse deferred message object */ ++ if (deferred_message != NULL) ++ *deferred_message = previous_deferred_message; ++ } ++ else ++ { ++ /* result is available - we can remove deferred message from the processed message */ ++ dbus_message_set_data(message, deferred_message_data_slot, NULL, NULL); ++ } ++ } ++ } ++ else + { +- (*deferred_message)->status |= check_type; ++ /* ask policy checkers */ ++#ifdef DBUS_ENABLE_CYNARA ++ cynara = bus_check_get_cynara(check); ++ result = bus_cynara_check_privilege(cynara, message, sender, addressed_recipient, ++ proposed_recipient, privilege, check_type, deferred_message); ++#endif ++ if (result == BUS_RESULT_LATER && deferred_message != NULL) ++ { ++ (*deferred_message)->status |= check_type; ++ } + } + return result; + } +@@ -206,6 +295,12 @@ bus_deferred_message_unref (BusDeferredMessage *deferred_message) + } + } + ++BusDeferredMessageStatus ++bus_deferred_message_get_status (BusDeferredMessage *deferred_message) ++{ ++ return deferred_message->status; ++} ++ + void + bus_deferred_message_response_received (BusDeferredMessage *deferred_message, + BusResult result) +diff --git a/bus/check.h b/bus/check.h +index c3fcaf90..d1775497 100644 +--- a/bus/check.h ++++ b/bus/check.h +@@ -55,6 +55,7 @@ BusResult bus_check_privilege (BusCheck *check, + BusDeferredMessageStatus check_type, + BusDeferredMessage **deferred_message); + ++ + BusDeferredMessage *bus_deferred_message_new (DBusMessage *message, + DBusConnection *sender, + DBusConnection *addressed_recipient, +@@ -65,4 +66,13 @@ BusDeferredMessage *bus_deferred_message_ref (BusDeferredMessage + void bus_deferred_message_unref (BusDeferredMessage *deferred_message); + void bus_deferred_message_response_received (BusDeferredMessage *deferred_message, + BusResult result); ++void bus_deferred_message_disable_sender (BusDeferredMessage *deferred_message); ++ ++BusDeferredMessageStatus bus_deferred_message_get_status (BusDeferredMessage *deferred_message); ++ ++#ifdef DBUS_ENABLE_EMBEDDED_TESTS ++extern BusResult (*bus_check_test_override) (DBusConnection *connection, ++ const char *privilege); ++#endif ++ + #endif /* BUS_CHECK_H */ +diff --git a/bus/cynara.c b/bus/cynara.c +index 57a4c45c..77aed623 100644 +--- a/bus/cynara.c ++++ b/bus/cynara.c +@@ -36,7 +36,6 @@ + #include <cynara-client-async.h> + #endif + +- + #ifdef DBUS_ENABLE_CYNARA + typedef struct BusCynara + { +diff --git a/bus/dispatch.c b/bus/dispatch.c +index 05be3bdf..7353501b 100644 +--- a/bus/dispatch.c ++++ b/bus/dispatch.c +@@ -35,6 +35,7 @@ + #include "signals.h" + #include "test.h" + #include <dbus/dbus-internals.h> ++#include <dbus/dbus-connection-internal.h> + #include <dbus/dbus-misc.h> + #include <string.h> + +@@ -121,7 +122,7 @@ send_one_message (DBusConnection *connection, + return TRUE; + } + +-dbus_bool_t ++BusResult + bus_dispatch_matches (BusTransaction *transaction, + DBusConnection *sender, + DBusConnection *addressed_recipient, +@@ -157,13 +158,29 @@ bus_dispatch_matches (BusTransaction *transaction, + message, error, + &deferred_message); + if (res == BUS_RESULT_FALSE) +- return FALSE; ++ return BUS_RESULT_FALSE; + else if (res == BUS_RESULT_LATER) + { +- dbus_set_error (error, +- DBUS_ERROR_ACCESS_DENIED, +- "Rejecting message because time is needed to check security policy"); +- return FALSE; ++ BusDeferredMessageStatus status; ++ status = bus_deferred_message_get_status(deferred_message); ++ ++ if (status & BUS_DEFERRED_MESSAGE_CHECK_SEND) ++ { ++ /* send rule result not available - disable dispatching messages from the sender */ ++ bus_deferred_message_disable_sender(deferred_message); ++ return BUS_RESULT_LATER; ++ } ++ else if (status & BUS_DEFERRED_MESSAGE_CHECK_RECEIVE) ++ { ++ dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED, ++ "Rejecting message because time is needed to check security policy"); ++ return BUS_RESULT_FALSE; ++ } ++ else ++ { ++ _dbus_verbose("deferred message has no status field set to send or receive unexpectedly\n"); ++ return BUS_RESULT_FALSE; ++ } + } + + if (dbus_message_contains_unix_fds (message) && +@@ -174,14 +191,14 @@ bus_dispatch_matches (BusTransaction *transaction, + DBUS_ERROR_NOT_SUPPORTED, + "Tried to send message with Unix file descriptors" + "to a client that doesn't support that."); +- return FALSE; +- } ++ return BUS_RESULT_FALSE; ++ } + + /* Dispatch the message */ + if (!bus_transaction_send (transaction, addressed_recipient, message)) + { + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + } + +@@ -196,7 +213,7 @@ bus_dispatch_matches (BusTransaction *transaction, + &recipients)) + { + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + link = _dbus_list_get_first_link (&recipients); +@@ -218,10 +235,10 @@ bus_dispatch_matches (BusTransaction *transaction, + if (dbus_error_is_set (&tmp_error)) + { + dbus_move_error (&tmp_error, error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + else +- return TRUE; ++ return BUS_RESULT_TRUE; + } + + static DBusHandlerResult +@@ -407,10 +424,12 @@ bus_dispatch (DBusConnection *connection, + } + else if (res == BUS_RESULT_LATER) + { +- dbus_set_error (&error, +- DBUS_ERROR_ACCESS_DENIED, +- "Rejecting message because time is needed to check security policy"); +- _dbus_verbose ("Security policy needs time to check policy. Dropping message\n"); ++ /* Disable dispatching messages from the sender, ++ * roll back and dispatch the message once the policy result is available */ ++ bus_deferred_message_disable_sender(deferred_message); ++ bus_transaction_cancel_and_free (transaction); ++ transaction = NULL; ++ result = DBUS_HANDLER_RESULT_LATER; + goto out; + } + +@@ -475,8 +494,14 @@ bus_dispatch (DBusConnection *connection, + * addressed_recipient == NULL), and match it against other connections' + * match rules. + */ +- if (!bus_dispatch_matches (transaction, connection, addressed_recipient, message, &error)) +- goto out; ++ if (BUS_RESULT_LATER == bus_dispatch_matches (transaction, connection, addressed_recipient, ++ message, &error)) ++ { ++ /* Roll back and dispatch the message once the policy result is available */ ++ bus_transaction_cancel_and_free (transaction); ++ transaction = NULL; ++ result = DBUS_HANDLER_RESULT_LATER; ++ } + + out: + if (dbus_error_is_set (&error)) +@@ -5001,9 +5026,132 @@ bus_dispatch_test_conf_fail (const DBusString *test_data_dir, + return TRUE; + } + ++typedef struct { ++ DBusTimeout *timeout; ++ DBusConnection *connection; ++ dbus_bool_t timedout; ++ int check_counter; ++} BusTestCheckData; ++ ++static BusTestCheckData *cdata; ++ ++static dbus_bool_t ++bus_dispatch_test_check_timeout (void *data) ++{ ++ _dbus_verbose ("timeout triggered - pretend that privilege check result is available\n"); ++ ++ /* should only happen once during the test */ ++ _dbus_assert (!cdata->timedout); ++ cdata->timedout = TRUE; ++ _dbus_connection_enable_dispatch (cdata->connection); ++ ++ /* don't call this again */ ++ _dbus_loop_remove_timeout (bus_connection_get_loop (cdata->connection), ++ cdata->timeout); ++ dbus_connection_unref (cdata->connection); ++ cdata->connection = NULL; ++ return TRUE; ++} ++ ++static BusResult ++bus_dispatch_test_check_override (DBusConnection *connection, ++ const char *privilege) ++{ ++ _dbus_verbose ("overriding privilege check %s #%d\n", privilege, cdata->check_counter); ++ cdata->check_counter++; ++ if (!cdata->timedout) ++ { ++ dbus_bool_t added; ++ ++ /* Should be the first privilege check for the "Echo" method. */ ++ _dbus_assert (cdata->check_counter == 1); ++ cdata->timeout = _dbus_timeout_new (1, bus_dispatch_test_check_timeout, ++ NULL, NULL); ++ _dbus_assert (cdata->timeout); ++ added = _dbus_loop_add_timeout (bus_connection_get_loop (connection), ++ cdata->timeout); ++ _dbus_assert (added); ++ cdata->connection = connection; ++ dbus_connection_ref (connection); ++ _dbus_connection_disable_dispatch (connection); ++ return BUS_RESULT_LATER; ++ } ++ else ++ { ++ /* Should only be checked one more time, and this time succeeds. */ ++ _dbus_assert (cdata->check_counter == 2); ++ return BUS_RESULT_TRUE; ++ } ++} ++ ++static dbus_bool_t ++bus_dispatch_test_check (const DBusString *test_data_dir) ++{ ++ const char *filename = "valid-config-files/debug-check-some.conf"; ++ BusContext *context; ++ DBusConnection *foo; ++ DBusError error; ++ dbus_bool_t result = TRUE; ++ BusTestCheckData data; ++ ++ /* save the config name for the activation helper */ ++ if (!setenv_TEST_LAUNCH_HELPER_CONFIG (test_data_dir, filename)) ++ _dbus_assert_not_reached ("no memory setting TEST_LAUNCH_HELPER_CONFIG"); ++ ++ dbus_error_init (&error); ++ ++ context = bus_context_new_test (test_data_dir, filename); ++ if (context == NULL) ++ return FALSE; ++ ++ foo = dbus_connection_open_private (TEST_DEBUG_PIPE, &error); ++ if (foo == NULL) ++ _dbus_assert_not_reached ("could not alloc connection"); ++ ++ if (!bus_setup_debug_client (foo)) ++ _dbus_assert_not_reached ("could not set up connection"); ++ ++ spin_connection_until_authenticated (context, foo); ++ ++ if (!check_hello_message (context, foo)) ++ _dbus_assert_not_reached ("hello message failed"); ++ ++ if (!check_double_hello_message (context, foo)) ++ _dbus_assert_not_reached ("double hello message failed"); ++ ++ if (!check_add_match (context, foo, "")) ++ _dbus_assert_not_reached ("AddMatch message failed"); ++ ++ /* ++ * Cause bus_check_send_privilege() to return BUS_RESULT_LATER in the ++ * first call, then BUS_RESULT_TRUE. ++ */ ++ cdata = &data; ++ memset (cdata, 0, sizeof(*cdata)); ++ bus_check_test_override = bus_dispatch_test_check_override; ++ ++ result = check_existent_service_auto_start (context, foo); ++ ++ _dbus_assert (cdata->check_counter == 2); ++ _dbus_assert (cdata->timedout); ++ _dbus_assert (cdata->timeout); ++ _dbus_assert (!cdata->connection); ++ _dbus_timeout_unref (cdata->timeout); ++ ++ kill_client_connection_unchecked (foo); ++ ++ bus_context_unref (context); ++ ++ return result; ++} ++ + dbus_bool_t + bus_dispatch_test (const DBusString *test_data_dir) + { ++ _dbus_verbose ("<check> tests\n"); ++ if (!bus_dispatch_test_check (test_data_dir)) ++ return FALSE; ++ + /* run normal activation tests */ + _dbus_verbose ("Normal activation tests\n"); + if (!bus_dispatch_test_conf (test_data_dir, +diff --git a/bus/dispatch.h b/bus/dispatch.h +index fb5ba7a5..afba6a24 100644 +--- a/bus/dispatch.h ++++ b/bus/dispatch.h +@@ -29,7 +29,7 @@ + + dbus_bool_t bus_dispatch_add_connection (DBusConnection *connection); + void bus_dispatch_remove_connection (DBusConnection *connection); +-dbus_bool_t bus_dispatch_matches (BusTransaction *transaction, ++BusResult bus_dispatch_matches (BusTransaction *transaction, + DBusConnection *sender, + DBusConnection *recipient, + DBusMessage *message, +diff --git a/bus/driver.c b/bus/driver.c +index b7e1a0a0..a5823d4d 100644 +--- a/bus/driver.c ++++ b/bus/driver.c +@@ -225,6 +225,7 @@ bus_driver_send_service_owner_changed (const char *service_name, + { + DBusMessage *message; + dbus_bool_t retval; ++ BusResult res; + const char *null_service; + + _DBUS_ASSERT_ERROR_IS_CLEAR (error); +@@ -260,7 +261,16 @@ bus_driver_send_service_owner_changed (const char *service_name, + if (!bus_transaction_capture (transaction, NULL, message)) + goto oom; + +- retval = bus_dispatch_matches (transaction, NULL, NULL, message, error); ++ res = bus_dispatch_matches (transaction, NULL, NULL, message, error); ++ if (res == BUS_RESULT_TRUE) ++ retval = TRUE; ++ else ++ { ++ retval = FALSE; ++ if (res == BUS_RESULT_LATER) ++ /* should never happen */ ++ _dbus_assert_not_reached ("bus_dispatch_matches returned BUS_RESULT_LATER unexpectedly"); ++ } + dbus_message_unref (message); + + return retval; +diff --git a/dbus/dbus-connection-internal.h b/dbus/dbus-connection-internal.h +index 48357321..94b1c951 100644 +--- a/dbus/dbus-connection-internal.h ++++ b/dbus/dbus-connection-internal.h +@@ -118,6 +118,21 @@ DBUS_PRIVATE_EXPORT + dbus_bool_t _dbus_connection_get_linux_security_label (DBusConnection *connection, + char **label_p); + ++DBUS_PRIVATE_EXPORT ++void _dbus_connection_enable_dispatch (DBusConnection *connection); ++DBUS_PRIVATE_EXPORT ++void _dbus_connection_disable_dispatch (DBusConnection *connection); ++ ++DBUS_PRIVATE_EXPORT ++dbus_bool_t _dbus_connection_putback_message (DBusConnection *connection, ++ DBusMessage *after_message, ++ DBusMessage *message, ++ DBusError *error); ++ ++DBUS_PRIVATE_EXPORT ++dbus_bool_t _dbus_connection_remove_message (DBusConnection *connection, ++ DBusMessage *message); ++ + /* if DBUS_ENABLE_STATS */ + DBUS_PRIVATE_EXPORT + void _dbus_connection_get_stats (DBusConnection *connection, +diff --git a/dbus/dbus-connection.c b/dbus/dbus-connection.c +index 7f5b3292..ed0be70d 100644 +--- a/dbus/dbus-connection.c ++++ b/dbus/dbus-connection.c +@@ -311,7 +311,8 @@ struct DBusConnection + */ + dbus_bool_t dispatch_acquired; /**< Someone has dispatch path (can drain incoming queue) */ + dbus_bool_t io_path_acquired; /**< Someone has transport io path (can use the transport to read/write messages) */ +- ++ ++ unsigned int dispatch_disabled : 1; /**< if true, then dispatching incoming messages is stopped until enabled again */ + unsigned int shareable : 1; /**< #TRUE if libdbus owns a reference to the connection and can return it from dbus_connection_open() more than once */ + + unsigned int exit_on_disconnect : 1; /**< If #TRUE, exit after handling disconnect signal */ +@@ -439,6 +440,39 @@ _dbus_connection_wakeup_mainloop (DBusConnection *connection) + (*connection->wakeup_main_function) (connection->wakeup_main_data); + } + ++static void ++_dbus_connection_set_dispatch(DBusConnection *connection, ++ dbus_bool_t disabled) ++{ ++ CONNECTION_LOCK (connection); ++ if (connection->dispatch_disabled != disabled) ++ { ++ DBusDispatchStatus status; ++ ++ connection->dispatch_disabled = disabled; ++ status = _dbus_connection_get_dispatch_status_unlocked (connection); ++ _dbus_connection_update_dispatch_status_and_unlock (connection, status); ++ } ++ else ++ { ++ CONNECTION_UNLOCK (connection); ++ } ++} ++ ++ ++void ++_dbus_connection_enable_dispatch (DBusConnection *connection) ++{ ++ _dbus_connection_set_dispatch (connection, FALSE); ++} ++ ++void ++ _dbus_connection_disable_dispatch (DBusConnection *connection) ++{ ++ _dbus_connection_set_dispatch (connection, TRUE); ++} ++ ++ + #ifdef DBUS_ENABLE_EMBEDDED_TESTS + /** + * Gets the locks so we can examine them +@@ -4070,6 +4104,82 @@ _dbus_connection_putback_message_link_unlocked (DBusConnection *connection, + "_dbus_connection_putback_message_link_unlocked"); + } + ++dbus_bool_t ++_dbus_connection_putback_message (DBusConnection *connection, ++ DBusMessage *after_message, ++ DBusMessage *message, ++ DBusError *error) ++{ ++ DBusDispatchStatus status; ++ DBusList *message_link = _dbus_list_alloc_link (message); ++ DBusList *after_link; ++ if (message_link == NULL) ++ { ++ _DBUS_SET_OOM (error); ++ return FALSE; ++ } ++ dbus_message_ref (message); ++ ++ CONNECTION_LOCK (connection); ++ _dbus_connection_acquire_dispatch (connection); ++ HAVE_LOCK_CHECK (connection); ++ ++ after_link = _dbus_list_find_first(&connection->incoming_messages, after_message); ++ _dbus_list_insert_after_link (&connection->incoming_messages, after_link, message_link); ++ connection->n_incoming += 1; ++ ++ _dbus_verbose ("Message %p (%s %s %s '%s') put back into queue %p, %d incoming\n", ++ message_link->data, ++ dbus_message_type_to_string (dbus_message_get_type (message_link->data)), ++ dbus_message_get_interface (message_link->data) ? ++ dbus_message_get_interface (message_link->data) : ++ "no interface", ++ dbus_message_get_member (message_link->data) ? ++ dbus_message_get_member (message_link->data) : ++ "no member", ++ dbus_message_get_signature (message_link->data), ++ connection, connection->n_incoming); ++ ++ _dbus_message_trace_ref (message_link->data, -1, -1, ++ "_dbus_connection_putback_message"); ++ ++ _dbus_connection_release_dispatch (connection); ++ ++ status = _dbus_connection_get_dispatch_status_unlocked (connection); ++ _dbus_connection_update_dispatch_status_and_unlock (connection, status); ++ ++ return TRUE; ++} ++ ++dbus_bool_t ++_dbus_connection_remove_message (DBusConnection *connection, ++ DBusMessage *message) ++{ ++ DBusDispatchStatus status; ++ dbus_bool_t removed; ++ ++ CONNECTION_LOCK (connection); ++ _dbus_connection_acquire_dispatch (connection); ++ HAVE_LOCK_CHECK (connection); ++ ++ removed = _dbus_list_remove(&connection->incoming_messages, message); ++ ++ if (removed) ++ { ++ connection->n_incoming -= 1; ++ dbus_message_unref(message); ++ _dbus_verbose ("Message %p removed from incoming queue\n", message); ++ } ++ else ++ _dbus_verbose ("Message %p not found in the incoming queue\n", message); ++ ++ _dbus_connection_release_dispatch (connection); ++ ++ status = _dbus_connection_get_dispatch_status_unlocked (connection); ++ _dbus_connection_update_dispatch_status_and_unlock (connection, status); ++ return removed; ++} ++ + /** + * Returns the first-received message from the incoming message queue, + * removing it from the queue. The caller owns a reference to the +@@ -4253,8 +4363,9 @@ static DBusDispatchStatus + _dbus_connection_get_dispatch_status_unlocked (DBusConnection *connection) + { + HAVE_LOCK_CHECK (connection); +- +- if (connection->n_incoming > 0) ++ if (connection->dispatch_disabled && dbus_connection_get_is_connected(connection)) ++ return DBUS_DISPATCH_COMPLETE; ++ else if (connection->n_incoming > 0) + return DBUS_DISPATCH_DATA_REMAINS; + else if (!_dbus_transport_queue_messages (connection->transport)) + return DBUS_DISPATCH_NEED_MEMORY; +@@ -4717,6 +4828,8 @@ dbus_connection_dispatch (DBusConnection *connection) + + CONNECTION_LOCK (connection); + ++ if (result == DBUS_HANDLER_RESULT_LATER) ++ goto out; + if (result == DBUS_HANDLER_RESULT_NEED_MEMORY) + { + _dbus_verbose ("No memory\n"); +@@ -4839,9 +4952,11 @@ dbus_connection_dispatch (DBusConnection *connection) + connection); + + out: +- if (result == DBUS_HANDLER_RESULT_NEED_MEMORY) ++ if (result == DBUS_HANDLER_RESULT_LATER || ++ result == DBUS_HANDLER_RESULT_NEED_MEMORY) + { +- _dbus_verbose ("out of memory\n"); ++ if (result == DBUS_HANDLER_RESULT_NEED_MEMORY) ++ _dbus_verbose ("out of memory\n"); + + /* Put message back, and we'll start over. + * Yes this means handlers must be idempotent if they +diff --git a/dbus/dbus-list.c b/dbus/dbus-list.c +index c4c1856f..f84918b1 100644 +--- a/dbus/dbus-list.c ++++ b/dbus/dbus-list.c +@@ -458,6 +458,35 @@ _dbus_list_remove_last (DBusList **list, + return FALSE; + } + ++/** ++ * Finds a value in the list. Returns the first link ++ * with value equal to the given data pointer. ++ * This is a linear-time operation. ++ * Returns #NULL if no value found that matches. ++ * ++ * @param list address of the list head. ++ * @param data the value to find. ++ * @returns the link if found ++ */ ++DBusList* ++_dbus_list_find_first (DBusList **list, ++ void *data) ++{ ++ DBusList *link; ++ ++ link = _dbus_list_get_first_link (list); ++ ++ while (link != NULL) ++ { ++ if (link->data == data) ++ return link; ++ ++ link = _dbus_list_get_next_link (list, link); ++ } ++ ++ return NULL; ++} ++ + /** + * Finds a value in the list. Returns the last link + * with value equal to the given data pointer. +diff --git a/dbus/dbus-list.h b/dbus/dbus-list.h +index 9350a0da..fee9f1bc 100644 +--- a/dbus/dbus-list.h ++++ b/dbus/dbus-list.h +@@ -68,6 +68,9 @@ DBUS_PRIVATE_EXPORT + void _dbus_list_remove_link (DBusList **list, + DBusList *link); + DBUS_PRIVATE_EXPORT ++DBusList* _dbus_list_find_first (DBusList **list, ++ void *data); ++DBUS_PRIVATE_EXPORT + DBusList* _dbus_list_find_last (DBusList **list, + void *data); + DBUS_PRIVATE_EXPORT +diff --git a/dbus/dbus-shared.h b/dbus/dbus-shared.h +index 7ab91035..e5bfbed6 100644 +--- a/dbus/dbus-shared.h ++++ b/dbus/dbus-shared.h +@@ -67,7 +67,8 @@ typedef enum + { + DBUS_HANDLER_RESULT_HANDLED, /**< Message has had its effect - no need to run more handlers. */ + DBUS_HANDLER_RESULT_NOT_YET_HANDLED, /**< Message has not had any effect - see if other handlers want it. */ +- DBUS_HANDLER_RESULT_NEED_MEMORY /**< Need more memory in order to return #DBUS_HANDLER_RESULT_HANDLED or #DBUS_HANDLER_RESULT_NOT_YET_HANDLED. Please try again later with more memory. */ ++ DBUS_HANDLER_RESULT_NEED_MEMORY, /**< Need more memory in order to return #DBUS_HANDLER_RESULT_HANDLED or #DBUS_HANDLER_RESULT_NOT_YET_HANDLED. Please try again later with more memory. */ ++ DBUS_HANDLER_RESULT_LATER /**< Message dispatch deferred due to pending policy check */ + } DBusHandlerResult; + + /* Bus names */ +-- +2.14.3 + diff --git a/meta-security/recipes-core/dbus-cynara/dbus/0003-Handle-unavailability-of-policy-results-for-broadcas.patch b/meta-security/recipes-core/dbus-cynara/dbus/0003-Handle-unavailability-of-policy-results-for-broadcas.patch new file mode 100644 index 000000000..b797064ec --- /dev/null +++ b/meta-security/recipes-core/dbus-cynara/dbus/0003-Handle-unavailability-of-policy-results-for-broadcas.patch @@ -0,0 +1,1090 @@ +From 8c5fd05f7b2f14ac0f4423cae300f60c6bb51c74 Mon Sep 17 00:00:00 2001 +From: Jacek Bukarewicz <j.bukarewicz@samsung.com> +Date: Fri, 28 Nov 2014 12:39:33 +0100 +Subject: [PATCH 3/5] Handle unavailability of policy results for broadcasts + and receive rules +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +When message is sent to the addressed recipient and receive rule +result is unavailable we don't want to block the sender +as it most likely will be the privileged service, so instead we queue +it at the recipient. Any further messages sent to it will be queued to +maintain message order. Once the answer from Cynara arrives messages are +dispatched from the recipient queue. In such case full dispatch is +performed - messages are sent to addressed recipient and other +interested connections. +Messages sent to non-addressed recipients (eavesdroppers or broadcast +message recipients) are handled in a similar way. The difference is +that it is not full dispatch meaning message is sent to a single recipient. + +Change-Id: Iecd5395f75a4c7811fa97247a37d8fc4d42e8814 + +Cherry picked from 1e231194610892dd4360224998d91336097b05a1 by Jose Bollo + +Signed-off-by: José Bollo <jose.bollo@iot.bzh> +--- + bus/activation.c | 4 +- + bus/bus.c | 50 +++++++-- + bus/bus.h | 19 ++++ + bus/check.c | 307 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ + bus/check.h | 25 +++++ + bus/connection.c | 169 ++++++++++++++++++++++++++++-- + bus/connection.h | 19 +++- + bus/dispatch.c | 121 ++++++++++++++++++---- + bus/dispatch.h | 11 +- + bus/driver.c | 2 +- + bus/policy.c | 6 ++ + 11 files changed, 686 insertions(+), 47 deletions(-) + +diff --git a/bus/activation.c b/bus/activation.c +index 343d3f22..11bd8386 100644 +--- a/bus/activation.c ++++ b/bus/activation.c +@@ -1198,7 +1198,7 @@ bus_activation_send_pending_auto_activation_messages (BusActivation *activation + res = bus_dispatch_matches (transaction, + entry->connection, + addressed_recipient, +- entry->activation_message, &error); ++ entry->activation_message, NULL, &error); + if (res == BUS_RESULT_FALSE) + { + /* If permission is denied, we just want to return the error +@@ -2085,7 +2085,7 @@ bus_activation_activate_service (BusActivation *activation, + entry->systemd_service); + /* Wonderful, systemd is connected, let's just send the msg */ + res = bus_dispatch_matches (activation_transaction, NULL, bus_service_get_primary_owners_connection (service), +- message, error); ++ message, NULL, error); + + if (res == BUS_RESULT_TRUE) + retval = TRUE; +diff --git a/bus/bus.c b/bus/bus.c +index c4008505..911e2340 100644 +--- a/bus/bus.c ++++ b/bus/bus.c +@@ -1796,17 +1796,9 @@ bus_context_check_security_policy (BusContext *context, + } + + /* See if limits on size have been exceeded */ +- if (proposed_recipient && +- ((dbus_connection_get_outgoing_size (proposed_recipient) > context->limits.max_outgoing_bytes) || +- (dbus_connection_get_outgoing_unix_fds (proposed_recipient) > context->limits.max_outgoing_unix_fds))) +- { +- complain_about_message (context, DBUS_ERROR_LIMITS_EXCEEDED, +- "Rejected: destination has a full message queue", +- 0, message, sender, proposed_recipient, requested_reply, TRUE, NULL, +- error); +- _dbus_verbose ("security policy disallowing message due to full message queue\n"); ++ if (!bus_context_check_recipient_message_limits(context, proposed_recipient, sender, message, ++ requested_reply, error)) + return BUS_RESULT_FALSE; +- } + + /* Record that we will allow a reply here in the future (don't + * bother if the recipient is the bus or this is an eavesdropping +@@ -1861,3 +1853,41 @@ bus_context_check_all_watches (BusContext *context) + _dbus_server_toggle_all_watches (server, enabled); + } + } ++ ++void ++bus_context_complain_about_message (BusContext *context, ++ const char *error_name, ++ const char *complaint, ++ int matched_rules, ++ DBusMessage *message, ++ DBusConnection *sender, ++ DBusConnection *proposed_recipient, ++ dbus_bool_t requested_reply, ++ dbus_bool_t log, ++ const char *privilege, ++ DBusError *error) ++{ ++ complain_about_message(context, error_name, complaint, matched_rules, message, sender, ++ proposed_recipient, requested_reply, log, privilege, error); ++} ++ ++dbus_bool_t bus_context_check_recipient_message_limits (BusContext *context, ++ DBusConnection *recipient, ++ DBusConnection *sender, ++ DBusMessage *message, ++ dbus_bool_t requested_reply, ++ DBusError *error) ++{ ++ if (recipient && ++ ((dbus_connection_get_outgoing_size (recipient) > context->limits.max_outgoing_bytes) || ++ (dbus_connection_get_outgoing_unix_fds (recipient) > context->limits.max_outgoing_unix_fds))) ++ { ++ complain_about_message (context, DBUS_ERROR_LIMITS_EXCEEDED, ++ "Rejected: destination has a full message queue", ++ 0, message, sender, recipient, requested_reply, TRUE, NULL, ++ error); ++ _dbus_verbose ("security policy disallowing message due to full message queue\n"); ++ return FALSE; ++ } ++ return TRUE; ++} +diff --git a/bus/bus.h b/bus/bus.h +index dab7791f..445165c9 100644 +--- a/bus/bus.h ++++ b/bus/bus.h +@@ -158,4 +158,23 @@ BusResult bus_context_check_security_policy (BusContext + BusDeferredMessage **deferred_message); + void bus_context_check_all_watches (BusContext *context); + ++dbus_bool_t bus_context_check_recipient_message_limits (BusContext *context, ++ DBusConnection *recipient, ++ DBusConnection *sender, ++ DBusMessage *message, ++ dbus_bool_t requested_reply, ++ DBusError *error); ++void bus_context_complain_about_message (BusContext *context, ++ const char *error_name, ++ const char *complaint, ++ int matched_rules, ++ DBusMessage *message, ++ DBusConnection *sender, ++ DBusConnection *proposed_recipient, ++ dbus_bool_t requested_reply, ++ dbus_bool_t log, ++ const char *privilege, ++ DBusError *error); ++ ++ + #endif /* BUS_BUS_H */ +diff --git a/bus/check.c b/bus/check.c +index 4b8a6994..b8833349 100644 +--- a/bus/check.c ++++ b/bus/check.c +@@ -49,6 +49,9 @@ typedef struct BusDeferredMessage + DBusConnection *sender; + DBusConnection *proposed_recipient; + DBusConnection *addressed_recipient; ++ dbus_bool_t requested_reply; ++ int matched_rules; ++ const char *privilege; + dbus_bool_t full_dispatch; + BusDeferredMessageStatus status; + BusResult response; +@@ -135,6 +138,89 @@ bus_check_enable_dispatch_callback (BusDeferredMessage *deferred_message, + _dbus_connection_enable_dispatch(deferred_message->sender); + } + ++static void ++bus_check_queued_message_reply_callback (BusDeferredMessage *deferred_message, ++ BusResult result) ++{ ++ int status; ++ ++ _dbus_verbose("bus_check_queued_message_reply_callback called message=%p\n", deferred_message); ++ ++ if (!bus_connection_is_active(deferred_message->proposed_recipient)) ++ return; ++ ++ status = deferred_message->status; ++ ++ deferred_message->status = 0; /* mark message as not waiting for response */ ++ deferred_message->response = result; ++ ++ /* ++ * If send rule allows us to send message we still need to check receive rules. ++ */ ++ if ((status & BUS_DEFERRED_MESSAGE_CHECK_SEND) && (result == BUS_RESULT_TRUE)) ++ { ++ int toggles; ++ BusContext *context; ++ BusRegistry *registry; ++ BusClientPolicy *recipient_policy; ++ BusDeferredMessage *deferred_message_receive; ++ ++ context = bus_connection_get_context(deferred_message->proposed_recipient); ++ registry = bus_context_get_registry(context); ++ recipient_policy = bus_connection_get_policy(deferred_message->proposed_recipient); ++ ++ deferred_message->response = bus_client_policy_check_can_receive(recipient_policy, registry, ++ deferred_message->requested_reply, deferred_message->sender, ++ deferred_message->addressed_recipient, deferred_message->proposed_recipient, deferred_message->message, ++ &toggles, NULL, &deferred_message_receive); ++ if (deferred_message->response == BUS_RESULT_LATER) ++ { ++ /* replace deferred message associated with send check with the one associated with ++ * receive check */ ++ if (!bus_deferred_message_replace(deferred_message, deferred_message_receive)) ++ { ++ /* failed to replace deferred message (due to oom). Set it to rejected */ ++ deferred_message->response = BUS_RESULT_FALSE; ++ } ++ } ++ } ++ ++ bus_connection_dispatch_deferred(deferred_message->proposed_recipient); ++} ++ ++static void ++queue_deferred_message_cancel_transaction_hook (void *data) ++{ ++ BusDeferredMessage *deferred_message = (BusDeferredMessage *)data; ++ bus_connection_remove_deferred_message(deferred_message->proposed_recipient, deferred_message); ++} ++ ++ ++dbus_bool_t ++bus_deferred_message_queue_at_recipient (BusDeferredMessage *deferred_message, ++ BusTransaction *transaction, ++ dbus_bool_t full_dispatch, ++ dbus_bool_t prepend) ++{ ++ _dbus_assert(deferred_message != NULL); ++ _dbus_assert(deferred_message->proposed_recipient != NULL); ++ ++ if (!bus_connection_queue_deferred_message(deferred_message->proposed_recipient, ++ deferred_message, prepend)) ++ return FALSE; ++ ++ if (!bus_transaction_add_cancel_hook(transaction, queue_deferred_message_cancel_transaction_hook, ++ deferred_message, NULL)) ++ { ++ bus_connection_remove_deferred_message(deferred_message->proposed_recipient, deferred_message); ++ return FALSE; ++ } ++ deferred_message->response_callback = bus_check_queued_message_reply_callback; ++ deferred_message->full_dispatch = full_dispatch; ++ ++ return TRUE; ++} ++ + static void + deferred_message_free_function(void *data) + { +@@ -159,6 +245,20 @@ bus_deferred_message_disable_sender (BusDeferredMessage *deferred_message) + deferred_message->response_callback = bus_check_enable_dispatch_callback; + } + ++void ++bus_deferred_message_set_policy_check_info (BusDeferredMessage *deferred_message, ++ dbus_bool_t requested_reply, ++ int matched_rules, ++ const char *privilege) ++{ ++ _dbus_assert(deferred_message != NULL); ++ ++ deferred_message->requested_reply = requested_reply; ++ deferred_message->matched_rules = matched_rules; ++ deferred_message->privilege = privilege; ++} ++ ++ + #ifdef DBUS_ENABLE_EMBEDDED_TESTS + BusResult (*bus_check_test_override) (DBusConnection *connection, + const char *privilege); +@@ -259,6 +359,9 @@ BusDeferredMessage *bus_deferred_message_new (DBusMessage *message, + deferred_message->addressed_recipient = addressed_recipient != NULL ? dbus_connection_ref(addressed_recipient) : NULL; + deferred_message->proposed_recipient = proposed_recipient != NULL ? dbus_connection_ref(proposed_recipient) : NULL; + deferred_message->message = dbus_message_ref(message); ++ deferred_message->requested_reply = FALSE; ++ deferred_message->matched_rules = 0; ++ deferred_message->privilege = NULL; + deferred_message->response = response; + deferred_message->status = 0; + deferred_message->full_dispatch = FALSE; +@@ -295,12 +398,215 @@ bus_deferred_message_unref (BusDeferredMessage *deferred_message) + } + } + ++dbus_bool_t ++bus_deferred_message_check_message_limits (BusDeferredMessage *deferred_message, DBusError *error) ++{ ++ BusContext *context = bus_connection_get_context(deferred_message->proposed_recipient); ++ ++ return bus_context_check_recipient_message_limits(context, deferred_message->proposed_recipient, ++ deferred_message->sender, deferred_message->message, deferred_message->requested_reply, ++ error); ++} ++ ++dbus_bool_t ++bus_deferred_message_expect_method_reply(BusDeferredMessage *deferred_message, BusTransaction *transaction, DBusError *error) ++{ ++ int type = dbus_message_get_type(deferred_message->message); ++ if (type == DBUS_MESSAGE_TYPE_METHOD_CALL && ++ deferred_message->sender && ++ deferred_message->addressed_recipient && ++ deferred_message->addressed_recipient == deferred_message->proposed_recipient && /* not eavesdropping */ ++ !bus_connections_expect_reply (bus_connection_get_connections (deferred_message->sender), ++ transaction, ++ deferred_message->sender, deferred_message->addressed_recipient, ++ deferred_message->message, error)) ++ { ++ _dbus_verbose ("Failed to record reply expectation or problem with the message expecting a reply\n"); ++ return FALSE; ++ } ++ return TRUE; ++} ++ ++void ++bus_deferred_message_create_error(BusDeferredMessage *deferred_message, ++ const char *error_message, DBusError *error) ++{ ++ BusContext *context; ++ _dbus_assert (deferred_message->status == 0 && deferred_message->response == BUS_RESULT_FALSE); ++ ++ if (deferred_message->sender == NULL) ++ return; /* error won't be sent to bus driver anyway */ ++ ++ context = bus_connection_get_context(deferred_message->sender); ++ bus_context_complain_about_message(context, DBUS_ERROR_ACCESS_DENIED, "Rejected message", ++ deferred_message->matched_rules, deferred_message->message, deferred_message->sender, ++ deferred_message->proposed_recipient, deferred_message->requested_reply, FALSE, ++ deferred_message->privilege, error); ++} ++ ++BusResult ++bus_deferred_message_dispatch (BusDeferredMessage *deferred_message) ++{ ++ BusContext *context = bus_connection_get_context (deferred_message->proposed_recipient); ++ BusTransaction *transaction = bus_transaction_new (context); ++ BusResult result = BUS_RESULT_TRUE; ++ DBusError error; ++ ++ if (transaction == NULL) ++ { ++ return BUS_RESULT_FALSE; ++ } ++ ++ dbus_error_init(&error); ++ ++ if (!deferred_message->full_dispatch) ++ { ++ result = deferred_message->response; ++ if (result == BUS_RESULT_TRUE) ++ { ++ if (!bus_context_check_recipient_message_limits(context, deferred_message->proposed_recipient, ++ deferred_message->sender, deferred_message->message, deferred_message->requested_reply, &error)) ++ result = BUS_RESULT_FALSE; ++ } ++ else if (result == BUS_RESULT_LATER) ++ { ++ BusDeferredMessage *deferred_message2; ++ result = bus_context_check_security_policy (context, transaction, ++ deferred_message->sender, ++ deferred_message->addressed_recipient, ++ deferred_message->proposed_recipient, ++ deferred_message->message, NULL, ++ &deferred_message2); ++ ++ if (result == BUS_RESULT_LATER) ++ { ++ /* prepend at recipient */ ++ if (!bus_deferred_message_queue_at_recipient(deferred_message2, transaction, ++ FALSE, TRUE)) ++ result = BUS_RESULT_FALSE; ++ } ++ } ++ ++ /* silently drop messages on access denial */ ++ if (result == BUS_RESULT_TRUE) ++ { ++ if (!bus_transaction_send (transaction, deferred_message->proposed_recipient, deferred_message->message, TRUE)) ++ result = BUS_RESULT_FALSE; ++ } ++ ++ bus_transaction_execute_and_free(transaction); ++ ++ goto out; ++ } ++ ++ /* do not attempt to send message if sender has disconnected */ ++ if (deferred_message->sender != NULL && !bus_connection_is_active(deferred_message->sender)) ++ { ++ bus_transaction_cancel_and_free(transaction); ++ result = BUS_RESULT_FALSE; ++ goto out; ++ } ++ ++ result = bus_dispatch_matches(transaction, deferred_message->sender, ++ deferred_message->addressed_recipient, deferred_message->message, deferred_message, &error); ++ ++ if (result == BUS_RESULT_LATER) ++ { ++ /* Message deferring was already done in bus_dispatch_matches */ ++ bus_transaction_cancel_and_free(transaction); ++ goto out; ++ } ++ ++ /* this part is a copy & paste from bus_dispatch function. Probably can be moved to a function */ ++ if (dbus_error_is_set (&error)) ++ { ++ if (!dbus_connection_get_is_connected (deferred_message->sender)) ++ { ++ /* If we disconnected it, we won't bother to send it any error ++ * messages. ++ */ ++ _dbus_verbose ("Not sending error to connection we disconnected\n"); ++ } ++ else if (dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY)) ++ { ++ bus_connection_send_oom_error (deferred_message->sender, deferred_message->message); ++ ++ /* cancel transaction due to OOM */ ++ if (transaction != NULL) ++ { ++ bus_transaction_cancel_and_free (transaction); ++ transaction = NULL; ++ } ++ } ++ else ++ { ++ /* Try to send the real error, if no mem to do that, send ++ * the OOM error ++ */ ++ _dbus_assert (transaction != NULL); ++ if (!bus_transaction_send_error_reply (transaction, deferred_message->sender, ++ &error, deferred_message->message)) ++ { ++ bus_connection_send_oom_error (deferred_message->sender, deferred_message->message); ++ ++ /* cancel transaction due to OOM */ ++ if (transaction != NULL) ++ { ++ bus_transaction_cancel_and_free (transaction); ++ transaction = NULL; ++ } ++ } ++ } ++ } ++ ++ if (transaction != NULL) ++ { ++ bus_transaction_execute_and_free (transaction); ++ } ++ ++out: ++ dbus_error_free(&error); ++ ++ return result; ++} ++ ++dbus_bool_t ++bus_deferred_message_replace (BusDeferredMessage *old_message, BusDeferredMessage *new_message) ++{ ++ if (bus_connection_replace_deferred_message(old_message->proposed_recipient, ++ old_message, new_message)) ++ { ++ new_message->response_callback = old_message->response_callback; ++ new_message->full_dispatch = old_message->full_dispatch; ++ return TRUE; ++ } ++ return FALSE; ++} ++ ++dbus_bool_t ++bus_deferred_message_waits_for_check(BusDeferredMessage *deferred_message) ++{ ++ return deferred_message->status != 0; ++} ++ ++DBusConnection * ++bus_deferred_message_get_recipient(BusDeferredMessage *deferred_message) ++{ ++ return deferred_message->proposed_recipient; ++} ++ + BusDeferredMessageStatus + bus_deferred_message_get_status (BusDeferredMessage *deferred_message) + { + return deferred_message->status; + } + ++BusResult ++bus_deferred_message_get_response (BusDeferredMessage *deferred_message) ++{ ++ return deferred_message->response; ++} ++ + void + bus_deferred_message_response_received (BusDeferredMessage *deferred_message, + BusResult result) +@@ -310,3 +616,4 @@ bus_deferred_message_response_received (BusDeferredMessage *deferred_message, + deferred_message->response_callback(deferred_message, result); + } + } ++ +diff --git a/bus/check.h b/bus/check.h +index d1775497..9c13c184 100644 +--- a/bus/check.h ++++ b/bus/check.h +@@ -64,12 +64,37 @@ BusDeferredMessage *bus_deferred_message_new (DBusMessage *messag + + BusDeferredMessage *bus_deferred_message_ref (BusDeferredMessage *deferred_message); + void bus_deferred_message_unref (BusDeferredMessage *deferred_message); ++BusResult bus_deferred_message_dispatch (BusDeferredMessage *deferred_message); ++dbus_bool_t bus_deferred_message_waits_for_check (BusDeferredMessage *deferred_message); ++DBusConnection *bus_deferred_message_get_recipient (BusDeferredMessage *deferred_message); + void bus_deferred_message_response_received (BusDeferredMessage *deferred_message, + BusResult result); ++dbus_bool_t bus_deferred_message_queue_at_recipient (BusDeferredMessage *deferred_message, ++ BusTransaction *transaction, ++ dbus_bool_t full_dispatch, ++ dbus_bool_t prepend); ++dbus_bool_t bus_deferred_message_replace (BusDeferredMessage *old_message, ++ BusDeferredMessage *new_message); + void bus_deferred_message_disable_sender (BusDeferredMessage *deferred_message); ++BusResult bus_deferred_message_get_response (BusDeferredMessage *deferred_message); + + BusDeferredMessageStatus bus_deferred_message_get_status (BusDeferredMessage *deferred_message); + ++ ++dbus_bool_t bus_deferred_message_expect_method_reply (BusDeferredMessage *deferred_message, ++ BusTransaction *transaction, ++ DBusError *error); ++void bus_deferred_message_create_error (BusDeferredMessage *deferred_message, ++ const char *error_message, ++ DBusError *error); ++void bus_deferred_message_set_policy_check_info (BusDeferredMessage *deferred_message, ++ dbus_bool_t requested_reply, ++ int matched_rules, ++ const char *privilege); ++dbus_bool_t bus_deferred_message_check_message_limits (BusDeferredMessage *deferred_message, ++ DBusError *error); ++ ++ + #ifdef DBUS_ENABLE_EMBEDDED_TESTS + extern BusResult (*bus_check_test_override) (DBusConnection *connection, + const char *privilege); +diff --git a/bus/connection.c b/bus/connection.c +index eea50ecd..1c0bdffb 100644 +--- a/bus/connection.c ++++ b/bus/connection.c +@@ -31,11 +31,13 @@ + #include "expirelist.h" + #include "selinux.h" + #include "apparmor.h" ++#include "check.h" + #include <dbus/dbus-list.h> + #include <dbus/dbus-hash.h> + #include <dbus/dbus-timeout.h> + #include <dbus/dbus-connection-internal.h> + #include <dbus/dbus-internals.h> ++#include <dbus/dbus-message-internal.h> + #ifdef DBUS_ENABLE_CYNARA + #include <stdlib.h> + #include <cynara-session.h> +@@ -102,6 +104,7 @@ typedef struct + DBusMessage *oom_message; + DBusPreallocatedSend *oom_preallocated; + BusClientPolicy *policy; ++ DBusList *deferred_messages; /**< Queue of messages deferred due to pending policy check */ + + char *cached_loginfo_string; + BusSELinuxID *selinux_id; +@@ -268,6 +271,8 @@ bus_connection_disconnected (DBusConnection *connection) + bus_transaction_execute_and_free (transaction); + } + ++ bus_connection_clear_deferred_messages(connection); ++ + bus_dispatch_remove_connection (connection); + + /* no more watching */ +@@ -2264,7 +2269,7 @@ bus_transaction_capture (BusTransaction *transaction, + { + DBusConnection *recipient = link->data; + +- if (!bus_transaction_send (transaction, recipient, message)) ++ if (!bus_transaction_send (transaction, recipient, message, FALSE)) + goto out; + } + +@@ -2317,6 +2322,7 @@ bus_transaction_send_from_driver (BusTransaction *transaction, + { + DBusError error = DBUS_ERROR_INIT; + BusResult res; ++ BusDeferredMessage *deferred_message; + + /* We have to set the sender to the driver, and have + * to check security policy since it was not done in +@@ -2357,7 +2363,8 @@ bus_transaction_send_from_driver (BusTransaction *transaction, + res = bus_context_check_security_policy (bus_transaction_get_context (transaction), + transaction, + NULL, connection, connection, message, &error, +- NULL); ++ &deferred_message); ++ + if (res == BUS_RESULT_FALSE) + { + if (!bus_transaction_capture_error_reply (transaction, &error, message)) +@@ -2374,18 +2381,20 @@ bus_transaction_send_from_driver (BusTransaction *transaction, + } + else if (res == BUS_RESULT_LATER) + { +- _dbus_verbose ("Cannot delay sending message from bus driver, dropping it\n"); + dbus_error_free (&error); +- return TRUE; ++ if (!bus_deferred_message_queue_at_recipient(deferred_message, transaction, FALSE, FALSE)) ++ return FALSE; ++ return TRUE; /* pretend to have sent it */ + } + +- return bus_transaction_send (transaction, connection, message); ++ return bus_transaction_send (transaction, connection, message, FALSE); + } + + dbus_bool_t + bus_transaction_send (BusTransaction *transaction, + DBusConnection *connection, +- DBusMessage *message) ++ DBusMessage *message, ++ dbus_bool_t deferred_dispatch) + { + MessageToSend *to_send; + BusConnectionData *d; +@@ -2411,7 +2420,28 @@ bus_transaction_send (BusTransaction *transaction, + + d = BUS_CONNECTION_DATA (connection); + _dbus_assert (d != NULL); +- ++ ++ if (!deferred_dispatch && d->deferred_messages != NULL) ++ { ++ BusDeferredMessage *deferred_message; ++ dbus_bool_t success; ++ /* sender and addressed recipient are not required at this point as we only need to send message ++ * to a single recipient without performing policy check. */ ++ deferred_message = bus_deferred_message_new (message, ++ NULL, ++ NULL, ++ connection, ++ BUS_RESULT_TRUE); ++ if (deferred_message == NULL) ++ return FALSE; ++ ++ success = bus_deferred_message_queue_at_recipient(deferred_message, transaction, ++ FALSE, FALSE); ++ bus_deferred_message_unref(deferred_message); ++ ++ return success; ++ } ++ + to_send = dbus_new (MessageToSend, 1); + if (to_send == NULL) + { +@@ -2663,6 +2693,131 @@ bus_transaction_add_cancel_hook (BusTransaction *transaction, + return TRUE; + } + ++void ++bus_connection_dispatch_deferred (DBusConnection *connection) ++{ ++ BusDeferredMessage *message; ++ ++ _dbus_return_if_fail (connection != NULL); ++ ++ while ((message = bus_connection_pop_deferred_message(connection)) != NULL) ++ { ++ bus_deferred_message_dispatch(message); ++ bus_deferred_message_unref(message); ++ } ++} ++ ++dbus_bool_t ++bus_connection_has_deferred_messages (DBusConnection *connection) ++{ ++ BusConnectionData *d = BUS_CONNECTION_DATA(connection); ++ return d->deferred_messages != NULL ? TRUE : FALSE; ++} ++ ++dbus_bool_t ++bus_connection_queue_deferred_message (DBusConnection *connection, ++ BusDeferredMessage *message, ++ dbus_bool_t prepend) ++{ ++ BusConnectionData *d = BUS_CONNECTION_DATA(connection); ++ dbus_bool_t success; ++ if (prepend) ++ success = _dbus_list_prepend(&d->deferred_messages, message); ++ else ++ success = _dbus_list_append(&d->deferred_messages, message); ++ ++ if (success) ++ { ++ bus_deferred_message_ref(message); ++ return TRUE; ++ } ++ ++ return FALSE; ++} ++ ++dbus_bool_t ++bus_connection_replace_deferred_message (DBusConnection *connection, ++ BusDeferredMessage *oldMessage, ++ BusDeferredMessage *newMessage) ++{ ++ DBusList *link; ++ BusConnectionData *d = BUS_CONNECTION_DATA(connection); ++ ++ link = _dbus_list_find_first(&d->deferred_messages, oldMessage); ++ if (link == NULL) ++ return FALSE; ++ ++ if (!_dbus_list_insert_after(&d->deferred_messages, link, newMessage)) ++ return FALSE; ++ ++ bus_deferred_message_ref(newMessage); ++ _dbus_list_remove_link(&d->deferred_messages, link); ++ bus_deferred_message_unref(oldMessage); ++ return TRUE; ++} ++ ++BusDeferredMessage * ++bus_connection_pop_deferred_message (DBusConnection *connection) ++{ ++ DBusList *link; ++ BusDeferredMessage *message; ++ BusConnectionData *d = BUS_CONNECTION_DATA(connection); ++ ++ link =_dbus_list_get_first_link(&d->deferred_messages); ++ if (link != NULL) ++ { ++ message = link->data; ++ if (!bus_deferred_message_waits_for_check(message)) ++ { ++ _dbus_list_remove_link(&d->deferred_messages, link); ++ return message; ++ } ++ } ++ ++ return NULL; ++} ++ ++dbus_bool_t ++bus_connection_putback_deferred_message (DBusConnection *connection, BusDeferredMessage *message) ++{ ++ BusConnectionData *d = BUS_CONNECTION_DATA(connection); ++ if (_dbus_list_prepend(&d->deferred_messages, message)) ++ { ++ return TRUE; ++ } ++ return FALSE; ++} ++ ++void ++bus_connection_clear_deferred_messages (DBusConnection *connection) ++{ ++ BusConnectionData *d = BUS_CONNECTION_DATA(connection); ++ DBusList *link; ++ DBusList *next; ++ BusDeferredMessage *message; ++ ++ link =_dbus_list_get_first_link(&d->deferred_messages); ++ while (link != NULL) ++ { ++ next = _dbus_list_get_next_link (&d->deferred_messages, link); ++ message = link->data; ++ ++ bus_deferred_message_unref(message); ++ _dbus_list_remove_link(&d->deferred_messages, link); ++ ++ link = next; ++ } ++} ++ ++void ++bus_connection_remove_deferred_message (DBusConnection *connection, ++ BusDeferredMessage *message) ++{ ++ BusConnectionData *d = BUS_CONNECTION_DATA(connection); ++ if (_dbus_list_remove(&d->deferred_messages, message)) ++ bus_deferred_message_unref(message); ++} ++ + int + bus_connections_get_n_active (BusConnections *connections) + { +diff --git a/bus/connection.h b/bus/connection.h +index a6e5dfde..46e883e6 100644 +--- a/bus/connection.h ++++ b/bus/connection.h +@@ -83,6 +83,22 @@ dbus_bool_t bus_connection_preallocate_oom_error (DBusConnection *connection); + void bus_connection_send_oom_error (DBusConnection *connection, + DBusMessage *in_reply_to); + ++dbus_bool_t bus_connection_has_deferred_messages (DBusConnection *connection); ++dbus_bool_t bus_connection_queue_deferred_message (DBusConnection *connection, ++ BusDeferredMessage *message, ++ dbus_bool_t prepend); ++BusDeferredMessage *bus_connection_pop_deferred_message (DBusConnection *connection); ++dbus_bool_t bus_connection_putback_deferred_message (DBusConnection *connection, ++ BusDeferredMessage *message); ++void bus_connection_remove_deferred_message (DBusConnection *connection, ++ BusDeferredMessage *message); ++dbus_bool_t bus_connection_replace_deferred_message (DBusConnection *connection, ++ BusDeferredMessage *oldMessage, ++ BusDeferredMessage *newMessage); ++void bus_connection_dispatch_deferred (DBusConnection *connection); ++void bus_connection_clear_deferred_messages (DBusConnection *connection); ++ ++ + /* called by signals.c */ + dbus_bool_t bus_connection_add_match_rule (DBusConnection *connection, + BusMatchRule *rule); +@@ -135,7 +151,8 @@ BusTransaction* bus_transaction_new (BusContext * + BusContext* bus_transaction_get_context (BusTransaction *transaction); + dbus_bool_t bus_transaction_send (BusTransaction *transaction, + DBusConnection *connection, +- DBusMessage *message); ++ DBusMessage *message, ++ dbus_bool_t deferred_dispatch); + dbus_bool_t bus_transaction_capture (BusTransaction *transaction, + DBusConnection *connection, + DBusMessage *message); +diff --git a/bus/dispatch.c b/bus/dispatch.c +index 7353501b..e32c9263 100644 +--- a/bus/dispatch.c ++++ b/bus/dispatch.c +@@ -33,6 +33,7 @@ + #include "utils.h" + #include "bus.h" + #include "signals.h" ++#include "dispatch.h" + #include "test.h" + #include <dbus/dbus-internals.h> + #include <dbus/dbus-connection-internal.h> +@@ -76,7 +77,7 @@ send_one_message (DBusConnection *connection, + message, + &stack_error, + &deferred_message); +- if (result != BUS_RESULT_TRUE) ++ if (result == BUS_RESULT_FALSE) + { + if (!bus_transaction_capture_error_reply (transaction, &stack_error, + message)) +@@ -111,9 +112,19 @@ send_one_message (DBusConnection *connection, + return TRUE; /* don't send it but don't return an error either */ + } + ++ if (result == BUS_RESULT_LATER) ++ { ++ if (!bus_deferred_message_queue_at_recipient(deferred_message, transaction, FALSE, FALSE)) ++ { ++ BUS_SET_OOM (error); ++ return FALSE; ++ } ++ return TRUE; /* pretend to have sent it */ ++ } ++ + if (!bus_transaction_send (transaction, + connection, +- message)) ++ message, FALSE)) + { + BUS_SET_OOM (error); + return FALSE; +@@ -123,11 +134,12 @@ send_one_message (DBusConnection *connection, + } + + BusResult +-bus_dispatch_matches (BusTransaction *transaction, +- DBusConnection *sender, +- DBusConnection *addressed_recipient, +- DBusMessage *message, +- DBusError *error) ++bus_dispatch_matches (BusTransaction *transaction, ++ DBusConnection *sender, ++ DBusConnection *addressed_recipient, ++ DBusMessage *message, ++ BusDeferredMessage *dispatched_deferred_message, ++ DBusError *error) + { + DBusError tmp_error; + BusConnections *connections; +@@ -151,17 +163,78 @@ bus_dispatch_matches (BusTransaction *transaction, + /* First, send the message to the addressed_recipient, if there is one. */ + if (addressed_recipient != NULL) + { +- BusResult res; +- res = bus_context_check_security_policy (context, transaction, +- sender, addressed_recipient, +- addressed_recipient, +- message, error, +- &deferred_message); +- if (res == BUS_RESULT_FALSE) ++ BusResult result; ++ /* To maintain message order message needs to be appended at the recipient if there are already ++ * deferred messages and we are not doing deferred dispatch ++ */ ++ if (dispatched_deferred_message == NULL && bus_connection_has_deferred_messages(addressed_recipient)) ++ { ++ deferred_message = bus_deferred_message_new(message, sender, ++ addressed_recipient, addressed_recipient, BUS_RESULT_LATER); ++ ++ if (deferred_message == NULL) ++ { ++ BUS_SET_OOM(error); ++ return BUS_RESULT_FALSE; ++ } ++ ++ if (!bus_deferred_message_queue_at_recipient(deferred_message, transaction, TRUE, FALSE)) ++ { ++ bus_deferred_message_unref(deferred_message); ++ BUS_SET_OOM(error); ++ return BUS_RESULT_FALSE; ++ } ++ ++ bus_deferred_message_unref(deferred_message); ++ return BUS_RESULT_TRUE; /* pretend to have sent it */ ++ } ++ ++ if (dispatched_deferred_message != NULL) ++ { ++ result = bus_deferred_message_get_response(dispatched_deferred_message); ++ if (result == BUS_RESULT_TRUE) ++ { ++ /* if we know the result of policy check we still need to check if message limits ++ * are not exceeded. It is also required to add entry in expected replies list if ++ * this is a method call ++ */ ++ if (!bus_deferred_message_check_message_limits(dispatched_deferred_message, error)) ++ return BUS_RESULT_FALSE; ++ ++ if (!bus_deferred_message_expect_method_reply(dispatched_deferred_message, transaction, error)) ++ return BUS_RESULT_FALSE; ++ } ++ else if (result == BUS_RESULT_FALSE) ++ { ++ bus_deferred_message_create_error(dispatched_deferred_message, "Rejected message", error); ++ return BUS_RESULT_FALSE; ++ } ++ } ++ else ++ result = BUS_RESULT_LATER; ++ ++ if (result == BUS_RESULT_LATER) ++ result = bus_context_check_security_policy(context, transaction, ++ sender, addressed_recipient, addressed_recipient, message, error, ++ &deferred_message); ++ ++ if (result == BUS_RESULT_FALSE) + return BUS_RESULT_FALSE; +- else if (res == BUS_RESULT_LATER) ++ else if (result == BUS_RESULT_LATER) + { + BusDeferredMessageStatus status; ++ ++ if (dispatched_deferred_message != NULL) ++ { ++ /* for deferred dispatch prepend message at the recipient */ ++ if (!bus_deferred_message_queue_at_recipient(deferred_message, transaction, TRUE, TRUE)) ++ { ++ BUS_SET_OOM(error); ++ return BUS_RESULT_FALSE; ++ } ++ return BUS_RESULT_TRUE; /* pretend to have sent it */ ++ } ++ + status = bus_deferred_message_get_status(deferred_message); + + if (status & BUS_DEFERRED_MESSAGE_CHECK_SEND) +@@ -172,13 +245,18 @@ bus_dispatch_matches (BusTransaction *transaction, + } + else if (status & BUS_DEFERRED_MESSAGE_CHECK_RECEIVE) + { +- dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED, +- "Rejecting message because time is needed to check security policy"); +- return BUS_RESULT_FALSE; ++ /* receive rule result not available - queue message at the recipient */ ++ if (!bus_deferred_message_queue_at_recipient(deferred_message, transaction, TRUE, FALSE)) ++ { ++ BUS_SET_OOM(error); ++ return BUS_RESULT_FALSE; ++ } ++ ++ return BUS_RESULT_TRUE; /* pretend to have sent it */ + } + else + { +- _dbus_verbose("deferred message has no status field set to send or receive unexpectedly\n"); ++ _dbus_verbose("deferred message has no status field set unexpectedly\n"); + return BUS_RESULT_FALSE; + } + } +@@ -195,7 +273,8 @@ bus_dispatch_matches (BusTransaction *transaction, + } + + /* Dispatch the message */ +- if (!bus_transaction_send (transaction, addressed_recipient, message)) ++ if (!bus_transaction_send(transaction, addressed_recipient, message, ++ dispatched_deferred_message != NULL ? TRUE : FALSE)) + { + BUS_SET_OOM (error); + return BUS_RESULT_FALSE; +@@ -495,7 +574,7 @@ bus_dispatch (DBusConnection *connection, + * match rules. + */ + if (BUS_RESULT_LATER == bus_dispatch_matches (transaction, connection, addressed_recipient, +- message, &error)) ++ message, NULL, &error)) + { + /* Roll back and dispatch the message once the policy result is available */ + bus_transaction_cancel_and_free (transaction); +diff --git a/bus/dispatch.h b/bus/dispatch.h +index afba6a24..f6102e80 100644 +--- a/bus/dispatch.h ++++ b/bus/dispatch.h +@@ -29,10 +29,11 @@ + + dbus_bool_t bus_dispatch_add_connection (DBusConnection *connection); + void bus_dispatch_remove_connection (DBusConnection *connection); +-BusResult bus_dispatch_matches (BusTransaction *transaction, +- DBusConnection *sender, +- DBusConnection *recipient, +- DBusMessage *message, +- DBusError *error); ++BusResult bus_dispatch_matches (BusTransaction *transaction, ++ DBusConnection *sender, ++ DBusConnection *recipient, ++ DBusMessage *message, ++ BusDeferredMessage *dispatched_deferred_message, ++ DBusError *error); + + #endif /* BUS_DISPATCH_H */ +diff --git a/bus/driver.c b/bus/driver.c +index a5823d4d..5acdd62a 100644 +--- a/bus/driver.c ++++ b/bus/driver.c +@@ -261,7 +261,7 @@ bus_driver_send_service_owner_changed (const char *service_name, + if (!bus_transaction_capture (transaction, NULL, message)) + goto oom; + +- res = bus_dispatch_matches (transaction, NULL, NULL, message, error); ++ res = bus_dispatch_matches (transaction, NULL, NULL, message, NULL, error); + if (res == BUS_RESULT_TRUE) + retval = TRUE; + else +diff --git a/bus/policy.c b/bus/policy.c +index bcade176..47bd1a24 100644 +--- a/bus/policy.c ++++ b/bus/policy.c +@@ -1071,6 +1071,9 @@ bus_client_policy_check_can_send (DBusConnection *sender, + + result = bus_check_privilege(check, message, sender, addressed_recipient, receiver, + privilege, BUS_DEFERRED_MESSAGE_CHECK_SEND, deferred_message); ++ if (result == BUS_RESULT_LATER && deferred_message != NULL) ++ bus_deferred_message_set_policy_check_info(*deferred_message, requested_reply, ++ *toggles, privilege); + } + else + privilege = NULL; +@@ -1305,6 +1308,9 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy, + + result = bus_check_privilege(check, message, sender, addressed_recipient, proposed_recipient, + privilege, BUS_DEFERRED_MESSAGE_CHECK_RECEIVE, deferred_message); ++ if (result == BUS_RESULT_LATER && deferred_message != NULL) ++ bus_deferred_message_set_policy_check_info(*deferred_message, requested_reply, ++ *toggles, privilege); + } + else + privilege = NULL; +-- +2.14.3 + diff --git a/meta-security/recipes-core/dbus-cynara/dbus/0004-Add-own-rule-result-unavailability-handling.patch b/meta-security/recipes-core/dbus-cynara/dbus/0004-Add-own-rule-result-unavailability-handling.patch new file mode 100644 index 000000000..1086f5b12 --- /dev/null +++ b/meta-security/recipes-core/dbus-cynara/dbus/0004-Add-own-rule-result-unavailability-handling.patch @@ -0,0 +1,1345 @@ +From 5bf7f759a738a451ea70732731d9a1b3e064353b Mon Sep 17 00:00:00 2001 +From: Jacek Bukarewicz <j.bukarewicz@samsung.com> +Date: Thu, 27 Nov 2014 11:26:21 +0100 +Subject: [PATCH 4/5] Add own rule result unavailability handling +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Own rule result unavailability is handled like send rules - dispatching +messages from the sender is blocked and resumed when result becomes +available. + +Handler of "RequestName" method needs to return BUS_RESULT_LATER when +policy result is not known therefore its return type is modified. +Since bus message handlers are put into function pointer array other +message handler function singatures are also affected. + +Change-Id: I4c2cbd4585e41fccd8a30f825a8f0d342ab56755 + +Cherry-picked from 35ef89cd6777ea2430077fc621d21bd01df92349 by Jose.bollo + +Signed-off-by: José Bollo <jose.bollo@iot.bzh> +--- + bus/dispatch.c | 11 ++- + bus/driver.c | 259 ++++++++++++++++++++++++++++++--------------------------- + bus/driver.h | 2 +- + bus/policy.c | 51 +++++++++--- + bus/policy.h | 6 +- + bus/services.c | 26 ++++-- + bus/services.h | 3 +- + bus/stats.c | 28 +++---- + bus/stats.h | 6 +- + 9 files changed, 229 insertions(+), 163 deletions(-) + +diff --git a/bus/dispatch.c b/bus/dispatch.c +index e32c9263..4d57c556 100644 +--- a/bus/dispatch.c ++++ b/bus/dispatch.c +@@ -513,8 +513,17 @@ bus_dispatch (DBusConnection *connection, + } + + _dbus_verbose ("Giving message to %s\n", DBUS_SERVICE_DBUS); +- if (!bus_driver_handle_message (connection, transaction, message, &error)) ++ res = bus_driver_handle_message (connection, transaction, message, &error); ++ if (res == BUS_RESULT_FALSE) + goto out; ++ else if (res == BUS_RESULT_LATER) ++ { ++ /* connection has been disabled in message handler */ ++ bus_transaction_cancel_and_free (transaction); ++ transaction = NULL; ++ result = DBUS_HANDLER_RESULT_LATER; ++ goto out; ++ } + } + else if (!bus_connection_is_active (connection)) /* clients must talk to bus driver first */ + { +diff --git a/bus/driver.c b/bus/driver.c +index 5acdd62a..bc4ce0b5 100644 +--- a/bus/driver.c ++++ b/bus/driver.c +@@ -427,7 +427,7 @@ create_unique_client_name (BusRegistry *registry, + return TRUE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_hello (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -435,7 +435,7 @@ bus_driver_handle_hello (DBusConnection *connection, + { + DBusString unique_name; + BusService *service; +- dbus_bool_t retval; ++ BusResult retval; + BusRegistry *registry; + BusConnections *connections; + +@@ -446,7 +446,7 @@ bus_driver_handle_hello (DBusConnection *connection, + /* We already handled an Hello message for this connection. */ + dbus_set_error (error, DBUS_ERROR_FAILED, + "Already handled an Hello message"); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + /* Note that when these limits are exceeded we don't disconnect the +@@ -460,16 +460,16 @@ bus_driver_handle_hello (DBusConnection *connection, + error)) + { + _DBUS_ASSERT_ERROR_IS_SET (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + if (!_dbus_string_init (&unique_name)) + { + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +- retval = FALSE; ++ retval = BUS_RESULT_FALSE; + + registry = bus_connection_get_registry (connection); + +@@ -502,7 +502,7 @@ bus_driver_handle_hello (DBusConnection *connection, + goto out_0; + + _dbus_assert (bus_connection_is_active (connection)); +- retval = TRUE; ++ retval = BUS_RESULT_TRUE; + + out_0: + _dbus_string_free (&unique_name); +@@ -554,7 +554,7 @@ bus_driver_send_welcome_message (DBusConnection *connection, + } + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_list_services (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -576,14 +576,14 @@ bus_driver_handle_list_services (DBusConnection *connection, + if (reply == NULL) + { + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + if (!bus_registry_list_services (registry, &services, &len)) + { + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + dbus_message_iter_init_append (reply, &iter); +@@ -595,7 +595,7 @@ bus_driver_handle_list_services (DBusConnection *connection, + dbus_free_string_array (services); + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + { +@@ -607,7 +607,7 @@ bus_driver_handle_list_services (DBusConnection *connection, + dbus_free_string_array (services); + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + } + +@@ -620,7 +620,7 @@ bus_driver_handle_list_services (DBusConnection *connection, + dbus_free_string_array (services); + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + ++i; + } +@@ -631,23 +631,23 @@ bus_driver_handle_list_services (DBusConnection *connection, + { + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + if (!bus_transaction_send_from_driver (transaction, connection, reply)) + { + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + else + { + dbus_message_unref (reply); +- return TRUE; ++ return BUS_RESULT_TRUE; + } + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_list_activatable_services (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -669,14 +669,14 @@ bus_driver_handle_list_activatable_services (DBusConnection *connection, + if (reply == NULL) + { + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + if (!bus_activation_list_services (activation, &services, &len)) + { + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + dbus_message_iter_init_append (reply, &iter); +@@ -688,7 +688,7 @@ bus_driver_handle_list_activatable_services (DBusConnection *connection, + dbus_free_string_array (services); + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + { +@@ -700,7 +700,7 @@ bus_driver_handle_list_activatable_services (DBusConnection *connection, + dbus_free_string_array (services); + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + } + +@@ -713,7 +713,7 @@ bus_driver_handle_list_activatable_services (DBusConnection *connection, + dbus_free_string_array (services); + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + ++i; + } +@@ -724,23 +724,23 @@ bus_driver_handle_list_activatable_services (DBusConnection *connection, + { + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + if (!bus_transaction_send_from_driver (transaction, connection, reply)) + { + dbus_message_unref (reply); + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + else + { + dbus_message_unref (reply); +- return TRUE; ++ return BUS_RESULT_TRUE; + } + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_acquire_service (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -751,7 +751,8 @@ bus_driver_handle_acquire_service (DBusConnection *connection, + const char *name; + dbus_uint32_t service_reply; + dbus_uint32_t flags; +- dbus_bool_t retval; ++ BusResult retval; ++ BusResult res; + BusRegistry *registry; + + _DBUS_ASSERT_ERROR_IS_CLEAR (error); +@@ -762,20 +763,24 @@ bus_driver_handle_acquire_service (DBusConnection *connection, + DBUS_TYPE_STRING, &name, + DBUS_TYPE_UINT32, &flags, + DBUS_TYPE_INVALID)) +- return FALSE; ++ return BUS_RESULT_FALSE; + + _dbus_verbose ("Trying to own name %s with flags 0x%x\n", name, flags); + +- retval = FALSE; ++ retval = BUS_RESULT_FALSE; + reply = NULL; + + _dbus_string_init_const (&service_name, name); + +- if (!bus_registry_acquire_service (registry, connection, +- &service_name, flags, +- &service_reply, transaction, +- error)) +- goto out; ++ res = bus_registry_acquire_service (registry, connection, message, ++ &service_name, flags, ++ &service_reply, transaction, ++ error); ++ if (res != BUS_RESULT_TRUE) ++ { ++ retval = res; ++ goto out; ++ } + + reply = dbus_message_new_method_return (message); + if (reply == NULL) +@@ -796,7 +801,7 @@ bus_driver_handle_acquire_service (DBusConnection *connection, + goto out; + } + +- retval = TRUE; ++ retval = BUS_RESULT_TRUE; + + out: + if (reply) +@@ -804,7 +809,7 @@ bus_driver_handle_acquire_service (DBusConnection *connection, + return retval; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_release_service (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -814,7 +819,7 @@ bus_driver_handle_release_service (DBusConnection *connection, + DBusString service_name; + const char *name; + dbus_uint32_t service_reply; +- dbus_bool_t retval; ++ BusResult retval; + BusRegistry *registry; + + _DBUS_ASSERT_ERROR_IS_CLEAR (error); +@@ -824,11 +829,11 @@ bus_driver_handle_release_service (DBusConnection *connection, + if (!dbus_message_get_args (message, error, + DBUS_TYPE_STRING, &name, + DBUS_TYPE_INVALID)) +- return FALSE; ++ return BUS_RESULT_FALSE; + + _dbus_verbose ("Trying to release name %s\n", name); + +- retval = FALSE; ++ retval = BUS_RESULT_FALSE; + reply = NULL; + + _dbus_string_init_const (&service_name, name); +@@ -857,7 +862,7 @@ bus_driver_handle_release_service (DBusConnection *connection, + goto out; + } + +- retval = TRUE; ++ retval = BUS_RESULT_TRUE; + + out: + if (reply) +@@ -865,7 +870,7 @@ bus_driver_handle_release_service (DBusConnection *connection, + return retval; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_service_exists (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -876,7 +881,7 @@ bus_driver_handle_service_exists (DBusConnection *connection, + BusService *service; + dbus_bool_t service_exists; + const char *name; +- dbus_bool_t retval; ++ BusResult retval; + BusRegistry *registry; + + _DBUS_ASSERT_ERROR_IS_CLEAR (error); +@@ -886,9 +891,9 @@ bus_driver_handle_service_exists (DBusConnection *connection, + if (!dbus_message_get_args (message, error, + DBUS_TYPE_STRING, &name, + DBUS_TYPE_INVALID)) +- return FALSE; ++ return BUS_RESULT_FALSE; + +- retval = FALSE; ++ retval = BUS_RESULT_FALSE; + + if (strcmp (name, DBUS_SERVICE_DBUS) == 0) + { +@@ -922,7 +927,7 @@ bus_driver_handle_service_exists (DBusConnection *connection, + goto out; + } + +- retval = TRUE; ++ retval = BUS_RESULT_TRUE; + + out: + if (reply) +@@ -931,7 +936,7 @@ bus_driver_handle_service_exists (DBusConnection *connection, + return retval; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_activate_service (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -939,7 +944,7 @@ bus_driver_handle_activate_service (DBusConnection *connection, + { + dbus_uint32_t flags; + const char *name; +- dbus_bool_t retval; ++ BusResult retval; + BusActivation *activation; + + _DBUS_ASSERT_ERROR_IS_CLEAR (error); +@@ -953,10 +958,10 @@ bus_driver_handle_activate_service (DBusConnection *connection, + { + _DBUS_ASSERT_ERROR_IS_SET (error); + _dbus_verbose ("No memory to get arguments to StartServiceByName\n"); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +- retval = FALSE; ++ retval = BUS_RESULT_FALSE; + + if (!bus_activation_activate_service (activation, connection, transaction, FALSE, + message, name, error)) +@@ -966,7 +971,7 @@ bus_driver_handle_activate_service (DBusConnection *connection, + goto out; + } + +- retval = TRUE; ++ retval = BUS_RESULT_TRUE; + + out: + return retval; +@@ -1068,13 +1073,13 @@ bus_driver_send_or_activate (BusTransaction *transaction, + return TRUE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_update_activation_environment (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, + DBusError *error) + { +- dbus_bool_t retval; ++ BusResult retval; + BusActivation *activation; + BusContext *context; + DBusMessageIter iter; +@@ -1090,7 +1095,7 @@ bus_driver_handle_update_activation_environment (DBusConnection *connection, + _DBUS_ASSERT_ERROR_IS_CLEAR (error); + + if (!bus_driver_check_message_is_for_us (message, error)) +- return FALSE; ++ return BUS_RESULT_FALSE; + + #ifdef DBUS_UNIX + { +@@ -1100,7 +1105,7 @@ bus_driver_handle_update_activation_environment (DBusConnection *connection, + */ + if (!bus_driver_check_caller_is_privileged (connection, transaction, + message, error)) +- return FALSE; ++ return BUS_RESULT_FALSE; + } + #endif + +@@ -1111,7 +1116,7 @@ bus_driver_handle_update_activation_environment (DBusConnection *connection, + dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED, + "Cannot change activation environment " + "on a system bus."); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + activation = bus_connection_get_activation (connection); +@@ -1125,7 +1130,7 @@ bus_driver_handle_update_activation_environment (DBusConnection *connection, + + dbus_message_iter_recurse (&iter, &dict_iter); + +- retval = FALSE; ++ retval = BUS_RESULT_FALSE; + systemd_message = NULL; + + /* Then loop through the sent dictionary, add the location of +@@ -1291,7 +1296,7 @@ bus_driver_handle_update_activation_environment (DBusConnection *connection, + message, error)) + goto out; + +- retval = TRUE; ++ retval = BUS_RESULT_TRUE; + + out: + if (systemd_message != NULL) +@@ -1301,7 +1306,7 @@ bus_driver_handle_update_activation_environment (DBusConnection *connection, + return retval; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_add_match (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -1367,16 +1372,16 @@ bus_driver_handle_add_match (DBusConnection *connection, + + bus_match_rule_unref (rule); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + failed: + _DBUS_ASSERT_ERROR_IS_SET (error); + if (rule) + bus_match_rule_unref (rule); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_remove_match (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -1420,16 +1425,16 @@ bus_driver_handle_remove_match (DBusConnection *connection, + + bus_match_rule_unref (rule); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + failed: + _DBUS_ASSERT_ERROR_IS_SET (error); + if (rule) + bus_match_rule_unref (rule); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_get_service_owner (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -1499,7 +1504,7 @@ bus_driver_handle_get_service_owner (DBusConnection *connection, + + dbus_message_unref (reply); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + BUS_SET_OOM (error); +@@ -1508,10 +1513,10 @@ bus_driver_handle_get_service_owner (DBusConnection *connection, + _DBUS_ASSERT_ERROR_IS_SET (error); + if (reply) + dbus_message_unref (reply); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_list_queued_owners (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -1602,7 +1607,7 @@ bus_driver_handle_list_queued_owners (DBusConnection *connection, + + dbus_message_unref (reply); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + BUS_SET_OOM (error); +@@ -1615,10 +1620,10 @@ bus_driver_handle_list_queued_owners (DBusConnection *connection, + if (base_names) + _dbus_list_clear (&base_names); + +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_get_connection_unix_user (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -1673,7 +1678,7 @@ bus_driver_handle_get_connection_unix_user (DBusConnection *connection, + + dbus_message_unref (reply); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + BUS_SET_OOM (error); +@@ -1682,10 +1687,10 @@ bus_driver_handle_get_connection_unix_user (DBusConnection *connection, + _DBUS_ASSERT_ERROR_IS_SET (error); + if (reply) + dbus_message_unref (reply); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -1740,7 +1745,7 @@ bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection, + + dbus_message_unref (reply); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + BUS_SET_OOM (error); +@@ -1749,10 +1754,10 @@ bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection, + _DBUS_ASSERT_ERROR_IS_SET (error); + if (reply) + dbus_message_unref (reply); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_get_adt_audit_session_data (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -1803,7 +1808,7 @@ bus_driver_handle_get_adt_audit_session_data (DBusConnection *connection, + + dbus_message_unref (reply); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + BUS_SET_OOM (error); +@@ -1812,10 +1817,10 @@ bus_driver_handle_get_adt_audit_session_data (DBusConnection *connection, + _DBUS_ASSERT_ERROR_IS_SET (error); + if (reply) + dbus_message_unref (reply); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_get_connection_selinux_security_context (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -1863,7 +1868,7 @@ bus_driver_handle_get_connection_selinux_security_context (DBusConnection *conne + + dbus_message_unref (reply); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + BUS_SET_OOM (error); +@@ -1872,10 +1877,10 @@ bus_driver_handle_get_connection_selinux_security_context (DBusConnection *conne + _DBUS_ASSERT_ERROR_IS_SET (error); + if (reply) + dbus_message_unref (reply); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_get_connection_credentials (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -1987,7 +1992,7 @@ bus_driver_handle_get_connection_credentials (DBusConnection *connection, + + dbus_message_unref (reply); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + BUS_SET_OOM (error); +@@ -2001,10 +2006,10 @@ bus_driver_handle_get_connection_credentials (DBusConnection *connection, + dbus_message_unref (reply); + } + +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_reload_config (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -2029,7 +2034,7 @@ bus_driver_handle_reload_config (DBusConnection *connection, + goto oom; + + dbus_message_unref (reply); +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + BUS_SET_OOM (error); +@@ -2038,11 +2043,11 @@ bus_driver_handle_reload_config (DBusConnection *connection, + _DBUS_ASSERT_ERROR_IS_SET (error); + if (reply) + dbus_message_unref (reply); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + #ifdef DBUS_ENABLE_VERBOSE_MODE +-static dbus_bool_t ++static BusResult + bus_driver_handle_enable_verbose (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -2062,7 +2067,7 @@ bus_driver_handle_enable_verbose (DBusConnection *connection, + _dbus_set_verbose(TRUE); + + dbus_message_unref (reply); +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + _DBUS_ASSERT_ERROR_IS_CLEAR (error); +@@ -2071,10 +2076,10 @@ bus_driver_handle_enable_verbose (DBusConnection *connection, + + if (reply) + dbus_message_unref (reply); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_disable_verbose (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -2094,7 +2099,7 @@ bus_driver_handle_disable_verbose (DBusConnection *connection, + _dbus_set_verbose(FALSE); + + dbus_message_unref (reply); +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + _DBUS_ASSERT_ERROR_IS_CLEAR (error); +@@ -2103,11 +2108,11 @@ bus_driver_handle_disable_verbose (DBusConnection *connection, + + if (reply) + dbus_message_unref (reply); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + #endif + +-static dbus_bool_t ++static BusResult + bus_driver_handle_get_id (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -2123,7 +2128,7 @@ bus_driver_handle_get_id (DBusConnection *connection, + if (!_dbus_string_init (&uuid)) + { + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + reply = NULL; +@@ -2149,7 +2154,7 @@ bus_driver_handle_get_id (DBusConnection *connection, + + _dbus_string_free (&uuid); + dbus_message_unref (reply); +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + _DBUS_ASSERT_ERROR_IS_CLEAR (error); +@@ -2159,10 +2164,10 @@ bus_driver_handle_get_id (DBusConnection *connection, + if (reply) + dbus_message_unref (reply); + _dbus_string_free (&uuid); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_become_monitor (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -2178,7 +2183,7 @@ bus_driver_handle_become_monitor (DBusConnection *connection, + int i; + int n_match_rules; + dbus_uint32_t flags; +- dbus_bool_t ret = FALSE; ++ BusResult ret = BUS_RESULT_FALSE; + + _DBUS_ASSERT_ERROR_IS_CLEAR (error); + +@@ -2258,10 +2263,10 @@ bus_driver_handle_become_monitor (DBusConnection *connection, + if (!bus_connection_be_monitor (connection, transaction, &rules, error)) + goto out; + +- ret = TRUE; ++ ret = BUS_RESULT_TRUE; + + out: +- if (ret) ++ if (ret == BUS_RESULT_TRUE) + _DBUS_ASSERT_ERROR_IS_CLEAR (error); + else + _DBUS_ASSERT_ERROR_IS_SET (error); +@@ -2282,10 +2287,10 @@ typedef struct + const char *name; + const char *in_args; + const char *out_args; +- dbus_bool_t (* handler) (DBusConnection *connection, +- BusTransaction *transaction, +- DBusMessage *message, +- DBusError *error); ++ BusResult (* handler) (DBusConnection *connection, ++ BusTransaction *transaction, ++ DBusMessage *message, ++ DBusError *error); + } MessageHandler; + + /* For speed it might be useful to sort this in order of +@@ -2370,7 +2375,7 @@ static const MessageHandler dbus_message_handlers[] = { + { NULL, NULL, NULL, NULL } + }; + +-static dbus_bool_t bus_driver_handle_introspect (DBusConnection *, ++static BusResult bus_driver_handle_introspect (DBusConnection *, + BusTransaction *, DBusMessage *, DBusError *); + + static const MessageHandler introspectable_message_handlers[] = { +@@ -2514,7 +2519,7 @@ bus_driver_generate_introspect_string (DBusString *xml) + return TRUE; + } + +-static dbus_bool_t ++static BusResult + bus_driver_handle_introspect (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -2534,13 +2539,13 @@ bus_driver_handle_introspect (DBusConnection *connection, + DBUS_TYPE_INVALID)) + { + _DBUS_ASSERT_ERROR_IS_SET (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + if (!_dbus_string_init (&xml)) + { + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + if (!bus_driver_generate_introspect_string (&xml)) +@@ -2563,7 +2568,7 @@ bus_driver_handle_introspect (DBusConnection *connection, + dbus_message_unref (reply); + _dbus_string_free (&xml); + +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + BUS_SET_OOM (error); +@@ -2573,7 +2578,7 @@ bus_driver_handle_introspect (DBusConnection *connection, + + _dbus_string_free (&xml); + +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + /* +@@ -2608,7 +2613,7 @@ bus_driver_check_message_is_for_us (DBusMessage *message, + return TRUE; + } + +-dbus_bool_t ++BusResult + bus_driver_handle_message (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -2618,6 +2623,7 @@ bus_driver_handle_message (DBusConnection *connection, + const InterfaceHandler *ih; + const MessageHandler *mh; + dbus_bool_t found_interface = FALSE; ++ BusResult res; + + _DBUS_ASSERT_ERROR_IS_CLEAR (error); + +@@ -2633,7 +2639,7 @@ bus_driver_handle_message (DBusConnection *connection, + transaction, + message, + error)) +- return FALSE; ++ return BUS_RESULT_FALSE; + + context = bus_connection_get_context (connection); + systemd = bus_driver_get_owner_of_name (connection, +@@ -2650,7 +2656,7 @@ bus_driver_handle_message (DBusConnection *connection, + attacker ? attacker : "(unauthenticated)", + bus_connection_get_loginfo (connection)); + /* ignore it */ +- return TRUE; ++ return BUS_RESULT_TRUE; + } + + if (!bus_context_get_systemd_activation (context)) +@@ -2658,16 +2664,16 @@ bus_driver_handle_message (DBusConnection *connection, + bus_context_log (context, DBUS_SYSTEM_LOG_WARNING, + "Ignoring unexpected ActivationFailure message " + "while not using systemd activation"); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +- return dbus_activation_systemd_failure(bus_context_get_activation(context), message); ++ return dbus_activation_systemd_failure(bus_context_get_activation(context), message) == TRUE ? BUS_RESULT_TRUE : BUS_RESULT_FALSE; + } + + if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_METHOD_CALL) + { + _dbus_verbose ("Driver got a non-method-call message, ignoring\n"); +- return TRUE; /* we just ignore this */ ++ return BUS_RESULT_TRUE; /* we just ignore this */ + } + + /* may be NULL, which means "any interface will do" */ +@@ -2709,20 +2715,27 @@ bus_driver_handle_message (DBusConnection *connection, + name, dbus_message_get_signature (message), + mh->in_args); + _DBUS_ASSERT_ERROR_IS_SET (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +- if ((* mh->handler) (connection, transaction, message, error)) ++ res = (* mh->handler) (connection, transaction, message, error); ++ if (res == BUS_RESULT_TRUE) + { + _DBUS_ASSERT_ERROR_IS_CLEAR (error); + _dbus_verbose ("Driver handler succeeded\n"); +- return TRUE; ++ return BUS_RESULT_TRUE; + } +- else ++ else if (res == BUS_RESULT_FALSE) + { + _DBUS_ASSERT_ERROR_IS_SET (error); + _dbus_verbose ("Driver handler returned failure\n"); +- return FALSE; ++ return BUS_RESULT_FALSE; ++ } ++ else if (res == BUS_RESULT_LATER) ++ { ++ _DBUS_ASSERT_ERROR_IS_CLEAR (error); ++ _dbus_verbose ("Driver handler delayed message processing due to policy check\n"); ++ return BUS_RESULT_LATER; + } + } + } +@@ -2734,7 +2747,7 @@ bus_driver_handle_message (DBusConnection *connection, + "%s does not understand message %s", + DBUS_SERVICE_DBUS, name); + +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + void +diff --git a/bus/driver.h b/bus/driver.h +index 201709c4..3ff4ff15 100644 +--- a/bus/driver.h ++++ b/bus/driver.h +@@ -28,7 +28,7 @@ + #include "connection.h" + + void bus_driver_remove_connection (DBusConnection *connection); +-dbus_bool_t bus_driver_handle_message (DBusConnection *connection, ++BusResult bus_driver_handle_message (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, + DBusError *error); +diff --git a/bus/policy.c b/bus/policy.c +index 47bd1a24..7244a46f 100644 +--- a/bus/policy.c ++++ b/bus/policy.c +@@ -1323,18 +1323,21 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy, + + + +-static dbus_bool_t ++static BusResult + bus_rules_check_can_own (DBusList *rules, +- const DBusString *service_name) ++ const DBusString *service_name, ++ DBusConnection *connection, ++ DBusMessage *message) + { + DBusList *link; +- dbus_bool_t allowed; ++ BusResult result; ++ const char *privilege; + + /* rules is in the order the rules appeared + * in the config file, i.e. last rule that applies wins + */ + +- allowed = FALSE; ++ result = BUS_RESULT_FALSE; + link = _dbus_list_get_first_link (&rules); + while (link != NULL) + { +@@ -1370,17 +1373,45 @@ bus_rules_check_can_own (DBusList *rules, + } + + /* Use this rule */ +- allowed = rule->access == BUS_POLICY_RULE_ACCESS_ALLOW; ++ switch (rule->access) ++ { ++ case BUS_POLICY_RULE_ACCESS_ALLOW: ++ result = BUS_RESULT_TRUE; ++ break; ++ case BUS_POLICY_RULE_ACCESS_DENY: ++ result = BUS_RESULT_FALSE; ++ break; ++ case BUS_POLICY_RULE_ACCESS_CHECK: ++ result = BUS_RESULT_LATER; ++ privilege = rule->privilege; ++ break; ++ } + } + +- return allowed; ++ if (result == BUS_RESULT_LATER) ++ { ++ BusContext *context = bus_connection_get_context(connection); ++ BusCheck *check = bus_context_get_check(context); ++ BusDeferredMessage *deferred_message; ++ ++ result = bus_check_privilege(check, message, connection, NULL, NULL, ++ privilege, BUS_DEFERRED_MESSAGE_CHECK_OWN, &deferred_message); ++ if (result == BUS_RESULT_LATER) ++ { ++ bus_deferred_message_disable_sender(deferred_message); ++ } ++ } ++ ++ return result; + } + +-dbus_bool_t ++BusResult + bus_client_policy_check_can_own (BusClientPolicy *policy, +- const DBusString *service_name) ++ const DBusString *service_name, ++ DBusConnection *connection, ++ DBusMessage *message) + { +- return bus_rules_check_can_own (policy->rules, service_name); ++ return bus_rules_check_can_own (policy->rules, service_name, connection, message); + } + + #ifdef DBUS_ENABLE_EMBEDDED_TESTS +@@ -1388,7 +1419,7 @@ dbus_bool_t + bus_policy_check_can_own (BusPolicy *policy, + const DBusString *service_name) + { +- return bus_rules_check_can_own (policy->default_rules, service_name); ++ return bus_rules_check_can_own (policy->default_rules, service_name, NULL, NULL) == BUS_RESULT_TRUE; + } + #endif /* DBUS_ENABLE_EMBEDDED_TESTS */ + +diff --git a/bus/policy.h b/bus/policy.h +index e9f193af..1f234310 100644 +--- a/bus/policy.h ++++ b/bus/policy.h +@@ -170,8 +170,10 @@ BusResult bus_client_policy_check_can_receive (BusClientPolicy *polic + dbus_int32_t *toggles, + const char **privilege_param, + BusDeferredMessage **deferred_message); +-dbus_bool_t bus_client_policy_check_can_own (BusClientPolicy *policy, +- const DBusString *service_name); ++BusResult bus_client_policy_check_can_own (BusClientPolicy *policy, ++ const DBusString *service_name, ++ DBusConnection *connection, ++ DBusMessage *message); + dbus_bool_t bus_client_policy_append_rule (BusClientPolicy *policy, + BusPolicyRule *rule); + void bus_client_policy_optimize (BusClientPolicy *policy); +diff --git a/bus/services.c b/bus/services.c +index 6a4c8848..fcc2d261 100644 +--- a/bus/services.c ++++ b/bus/services.c +@@ -376,24 +376,26 @@ bus_registry_list_services (BusRegistry *registry, + return FALSE; + } + +-dbus_bool_t ++BusResult + bus_registry_acquire_service (BusRegistry *registry, + DBusConnection *connection, ++ DBusMessage *message, + const DBusString *service_name, + dbus_uint32_t flags, + dbus_uint32_t *result, + BusTransaction *transaction, + DBusError *error) + { +- dbus_bool_t retval; ++ BusResult retval; + DBusConnection *old_owner_conn; + BusClientPolicy *policy; + BusService *service; + BusActivation *activation; + BusSELinuxID *sid; + BusOwner *primary_owner; ++ BusResult res; + +- retval = FALSE; ++ retval = BUS_RESULT_FALSE; + + if (!_dbus_validate_bus_name (service_name, 0, + _dbus_string_get_length (service_name))) +@@ -466,7 +468,8 @@ bus_registry_acquire_service (BusRegistry *registry, + _dbus_string_get_const_data (service_name), error)) + goto out; + +- if (!bus_client_policy_check_can_own (policy, service_name)) ++ res = bus_client_policy_check_can_own (policy, service_name, connection, message); ++ if (res == BUS_RESULT_FALSE) + { + dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED, + "Connection \"%s\" is not allowed to own the service \"%s\" due " +@@ -477,6 +480,11 @@ bus_registry_acquire_service (BusRegistry *registry, + _dbus_string_get_const_data (service_name)); + goto out; + } ++ else if (res == BUS_RESULT_LATER) ++ { ++ retval = BUS_RESULT_LATER; ++ goto out; ++ } + + if (bus_connection_get_n_services_owned (connection) >= + bus_context_get_max_services_per_connection (registry->context)) +@@ -593,11 +601,13 @@ bus_registry_acquire_service (BusRegistry *registry, + } + + activation = bus_context_get_activation (registry->context); +- retval = bus_activation_send_pending_auto_activation_messages (activation, ++ ++ if (bus_activation_send_pending_auto_activation_messages (activation, + service, +- transaction); +- if (!retval) +- BUS_SET_OOM (error); ++ transaction)) ++ retval = BUS_RESULT_TRUE; ++ else ++ BUS_SET_OOM (error); + + out: + return retval; +diff --git a/bus/services.h b/bus/services.h +index 056dd9fa..3df3dd7d 100644 +--- a/bus/services.h ++++ b/bus/services.h +@@ -50,8 +50,9 @@ void bus_registry_foreach (BusRegistry *registry + dbus_bool_t bus_registry_list_services (BusRegistry *registry, + char ***listp, + int *array_len); +-dbus_bool_t bus_registry_acquire_service (BusRegistry *registry, ++BusResult bus_registry_acquire_service (BusRegistry *registry, + DBusConnection *connection, ++ DBusMessage *message, + const DBusString *service_name, + dbus_uint32_t flags, + dbus_uint32_t *result, +diff --git a/bus/stats.c b/bus/stats.c +index dace0e29..aab0e5c9 100644 +--- a/bus/stats.c ++++ b/bus/stats.c +@@ -36,7 +36,7 @@ + + #ifdef DBUS_ENABLE_STATS + +-dbus_bool_t ++BusResult + bus_stats_handle_get_stats (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -52,7 +52,7 @@ bus_stats_handle_get_stats (DBusConnection *connection, + _DBUS_ASSERT_ERROR_IS_CLEAR (error); + + if (!bus_driver_check_message_is_for_us (message, error)) +- return FALSE; ++ return BUS_RESULT_FALSE; + + context = bus_transaction_get_context (transaction); + connections = bus_context_get_connections (context); +@@ -107,17 +107,17 @@ bus_stats_handle_get_stats (DBusConnection *connection, + goto oom; + + dbus_message_unref (reply); +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + if (reply != NULL) + dbus_message_unref (reply); + + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + +-dbus_bool_t ++BusResult + bus_stats_handle_get_connection_stats (DBusConnection *caller_connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -137,14 +137,14 @@ bus_stats_handle_get_connection_stats (DBusConnection *caller_connection, + _DBUS_ASSERT_ERROR_IS_CLEAR (error); + + if (!bus_driver_check_message_is_for_us (message, error)) +- return FALSE; ++ return BUS_RESULT_FALSE; + + registry = bus_connection_get_registry (caller_connection); + + if (! dbus_message_get_args (message, error, + DBUS_TYPE_STRING, &bus_name, + DBUS_TYPE_INVALID)) +- return FALSE; ++ return BUS_RESULT_FALSE; + + _dbus_string_init_const (&bus_name_str, bus_name); + service = bus_registry_lookup (registry, &bus_name_str); +@@ -153,7 +153,7 @@ bus_stats_handle_get_connection_stats (DBusConnection *caller_connection, + { + dbus_set_error (error, DBUS_ERROR_NAME_HAS_NO_OWNER, + "Bus name '%s' has no owner", bus_name); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + stats_connection = bus_service_get_primary_owners_connection (service); +@@ -215,18 +215,18 @@ bus_stats_handle_get_connection_stats (DBusConnection *caller_connection, + goto oom; + + dbus_message_unref (reply); +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + if (reply != NULL) + dbus_message_unref (reply); + + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + +-dbus_bool_t ++BusResult + bus_stats_handle_get_all_match_rules (DBusConnection *caller_connection, + BusTransaction *transaction, + DBusMessage *message, +@@ -250,7 +250,7 @@ bus_stats_handle_get_all_match_rules (DBusConnection *caller_connection, + matchmaker = bus_context_get_matchmaker (context); + + if (!bus_registry_list_services (registry, &services, &services_len)) +- return FALSE; ++ return BUS_RESULT_FALSE; + + reply = dbus_message_new_method_return (message); + if (reply == NULL) +@@ -329,7 +329,7 @@ bus_stats_handle_get_all_match_rules (DBusConnection *caller_connection, + + dbus_message_unref (reply); + dbus_free_string_array (services); +- return TRUE; ++ return BUS_RESULT_TRUE; + + oom: + if (reply != NULL) +@@ -338,7 +338,7 @@ oom: + dbus_free_string_array (services); + + BUS_SET_OOM (error); +- return FALSE; ++ return BUS_RESULT_FALSE; + } + + #endif +diff --git a/bus/stats.h b/bus/stats.h +index dcb022c4..683fa175 100644 +--- a/bus/stats.h ++++ b/bus/stats.h +@@ -25,17 +25,17 @@ + + #define BUS_INTERFACE_STATS "org.freedesktop.DBus.Debug.Stats" + +-dbus_bool_t bus_stats_handle_get_stats (DBusConnection *connection, ++BusResult bus_stats_handle_get_stats (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, + DBusError *error); + +-dbus_bool_t bus_stats_handle_get_connection_stats (DBusConnection *connection, ++BusResult bus_stats_handle_get_connection_stats (DBusConnection *connection, + BusTransaction *transaction, + DBusMessage *message, + DBusError *error); + +-dbus_bool_t bus_stats_handle_get_all_match_rules (DBusConnection *caller_connection, ++BusResult bus_stats_handle_get_all_match_rules (DBusConnection *caller_connection, + BusTransaction *transaction, + DBusMessage *message, + DBusError *error); +-- +2.14.3 + diff --git a/meta-security/recipes-core/dbus-cynara/dbus/0005-Perform-Cynara-runtime-policy-checks-by-default.patch b/meta-security/recipes-core/dbus-cynara/dbus/0005-Perform-Cynara-runtime-policy-checks-by-default.patch new file mode 100644 index 000000000..d30b2dbf8 --- /dev/null +++ b/meta-security/recipes-core/dbus-cynara/dbus/0005-Perform-Cynara-runtime-policy-checks-by-default.patch @@ -0,0 +1,123 @@ +From 92a373a6dbb1c7cd7c9824167aac232f3e0daebd Mon Sep 17 00:00:00 2001 +From: Jacek Bukarewicz <j.bukarewicz@samsung.com> +Date: Tue, 23 Jun 2015 11:08:48 +0200 +Subject: [PATCH 5/5] Perform Cynara runtime policy checks by default +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This change introduces http://tizen.org/privilege/internal/dbus privilege +which is supposed to be available only to trusted system resources. +Checks for this privilege are used in place of certain allow rules to +make security policy more strict. + +For system bus sending and receiving signals now requires +http://tizen.org/privilege/internal/dbus privilege. Requesting name +ownership and sending methods is still denied by default. + +For session bus http://tizen.org/privilege/internal/dbus privilege +is now required for requesting name, calling methods, sending and receiving +signals. + +Services are supposed to override these default settings to implement their +own security policy. + +Change-Id: Ifb4a160bf6e0638404e0295a2e4fa3077efd881c +Signed-off-by: Jacek Bukarewicz <j.bukarewicz@samsung.com> + +Cherry picked from e8610297cf7031e94eb314a2e8c11246f4405403 by Jose Bollo +Signed-off-by: José Bollo <jose.bollo@iot.bzh> +--- + bus/session.conf.in | 32 ++++++++++++++++++++++++++------ + bus/system.conf.in | 19 +++++++++++++++---- + 2 files changed, 41 insertions(+), 10 deletions(-) + +diff --git a/bus/session.conf.in b/bus/session.conf.in +index affa7f1d..157dfb4d 100644 +--- a/bus/session.conf.in ++++ b/bus/session.conf.in +@@ -27,12 +27,32 @@ + <standard_session_servicedirs /> + + <policy context="default"> +- <!-- Allow everything to be sent --> +- <allow send_destination="*" eavesdrop="true"/> +- <!-- Allow everything to be received --> +- <allow eavesdrop="true"/> +- <!-- Allow anyone to own anything --> +- <allow own="*"/> ++ <!-- By default clients require internal/dbus privilege to communicate ++ with D-Bus services and to claim name ownership. This is internal privilege that ++ is only accessible to trusted system services --> ++ <check own="*" privilege="http://tizen.org/privilege/internal/dbus" /> ++ <check send_type="method_call" privilege="http://tizen.org/privilege/internal/dbus" /> ++ <check send_type="signal" privilege="http://tizen.org/privilege/internal/dbus" /> ++ <check receive_type="signal" privilege="http://tizen.org/privilege/internal/dbus" /> ++ ++ <!-- Reply messages (method returns, errors) are allowed ++ by default --> ++ <allow send_requested_reply="true" send_type="method_return"/> ++ <allow send_requested_reply="true" send_type="error"/> ++ ++ <!-- All messages but signals may be received by default --> ++ <allow receive_type="method_call"/> ++ <allow receive_type="method_return"/> ++ <allow receive_type="error"/> ++ ++ <!-- Allow anyone to talk to the message bus --> ++ <allow send_destination="org.freedesktop.DBus"/> ++ <allow receive_sender="org.freedesktop.DBus"/> ++ ++ <!-- But disallow some specific bus services --> ++ <deny send_destination="org.freedesktop.DBus" ++ send_interface="org.freedesktop.DBus" ++ send_member="UpdateActivationEnvironment"/> + </policy> + + <!-- Include legacy configuration location --> +diff --git a/bus/system.conf.in b/bus/system.conf.in +index 014f67ee..ebbd468a 100644 +--- a/bus/system.conf.in ++++ b/bus/system.conf.in +@@ -50,23 +50,34 @@ + <deny own="*"/> + <deny send_type="method_call"/> + +- <!-- Signals and reply messages (method returns, errors) are allowed ++ <!-- By default clients require internal/dbus privilege to send and receive signaks. ++ This is internal privilege that is only accessible to trusted system services --> ++ <check send_type="signal" privilege="http://tizen.org/privilege/internal/dbus" /> ++ <check receive_type="signal" privilege="http://tizen.org/privilege/internal/dbus" /> ++ ++ <!-- Reply messages (method returns, errors) are allowed + by default --> +- <allow send_type="signal"/> + <allow send_requested_reply="true" send_type="method_return"/> + <allow send_requested_reply="true" send_type="error"/> + +- <!-- All messages may be received by default --> ++ <!-- All messages but signals may be received by default --> + <allow receive_type="method_call"/> + <allow receive_type="method_return"/> + <allow receive_type="error"/> +- <allow receive_type="signal"/> + + <!-- Allow anyone to talk to the message bus --> + <allow send_destination="org.freedesktop.DBus" + send_interface="org.freedesktop.DBus" /> + <allow send_destination="org.freedesktop.DBus" + send_interface="org.freedesktop.DBus.Introspectable"/> ++ <!-- If there is a need specific bus services could be protected by Cynara as well. ++ However, this can lead to deadlock during the boot process when such check is made and ++ Cynara is not yet activated (systemd calls protected method synchronously, ++ dbus daemon tries to consult Cynara, Cynara waits for systemd activation). ++ Therefore it is advised to allow root processes to use bus services. ++ Currently anyone is allowed to talk to the message bus --> ++ <allow receive_sender="org.freedesktop.DBus"/> ++ + <!-- But disallow some specific bus services --> + <deny send_destination="org.freedesktop.DBus" + send_interface="org.freedesktop.DBus" +-- +2.14.3 + diff --git a/meta-security/recipes-core/dbus-cynara/dbus_1.10.20.bbappend b/meta-security/recipes-core/dbus-cynara/dbus_1.10.20.bbappend new file mode 100644 index 000000000..34064bab2 --- /dev/null +++ b/meta-security/recipes-core/dbus-cynara/dbus_1.10.20.bbappend @@ -0,0 +1,13 @@ +FILESEXTRAPATHS_append := ":${THISDIR}/${PN}" + +SRC_URI_append = "\ + file://0001-Integration-of-Cynara-asynchronous-security-checks.patch \ + file://0002-Disable-message-dispatching-when-send-rule-result-is.patch \ + file://0003-Handle-unavailability-of-policy-results-for-broadcas.patch \ + file://0004-Add-own-rule-result-unavailability-handling.patch \ + file://0005-Perform-Cynara-runtime-policy-checks-by-default.patch \ +" + +DEPENDS_append_class-target = " cynara" +EXTRA_OECONF_append_class-target = " --disable-selinux --enable-cynara" + diff --git a/meta-security/recipes-core/dbus/dbus-cynara_1.8.18.bb b/meta-security/recipes-core/dbus/dbus-cynara_1.8.18.bb deleted file mode 100644 index bcff737cd..000000000 --- a/meta-security/recipes-core/dbus/dbus-cynara_1.8.18.bb +++ /dev/null @@ -1,58 +0,0 @@ -require dbus-oe-core.inc -FILESEXTRAPATHS_prepend := "${COREBASE}/meta/recipes-core/dbus/dbus:${THISDIR}/dbus-cynara:" -S = "${WORKDIR}/dbus-${PV}" -libexecdir = "${libdir}/dbus" - -SRC_URI[md5sum] = "83e607e9ccb1c921d5b6bbea2376a36c" -SRC_URI[sha256sum] = "36f2eb9c777a3c71562573da36a147e900a642afcd44d2b0470d992a4898c4f2" - -# From https://review.tizen.org/gerrit/#/admin/projects/platform/upstream/dbus -# revision 6c9997fb1cdff4281166e8c2fb8276018b1025dd -# aka https://review.tizen.org/git/?p=platform%2Fupstream%2Fdbus.git;a=shortlog;h=refs%2Fheads%2Fsandbox%2Fjacekbe%2Fupgrade -# as announced in https://bugs.tizen.org/jira/browse/TC-2520 "D-Bus: local denial of service attack" -SRC_URI += " \ -file://0001-Fix-memleak-in-GetConnectionCredentials-handler.patch \ -file://0002-New-a-sv-helper-for-using-byte-arrays-as-the-variant.patch \ -file://0003-Add-LSM-agnostic-support-for-LinuxSecurityLabel-cred.patch \ -file://0004-Integration-of-Cynara-asynchronous-security-checks.patch \ -file://0005-Disable-message-dispatching-when-send-rule-result-is.patch \ -file://0006-Handle-unavailability-of-policy-results-for-broadcas.patch \ -file://0007-Add-own-rule-result-unavailability-handling.patch \ -" - -# Provides a legacy API which shouldn't be used in new code. It is -# still needed at the moment because cynara helper methods call it -# (creds-dbus-inner.cpp, creds-gdbus.cpp). -SRC_URI += "file://0008-Add-GetConnectionSmackContext-D-Bus-daemon-method.patch" - -# Depends on special Cynara rules which get installed in the -# security-manager-policy package. From patch set 5 in: -# https://review.tizen.org/gerrit/#/c/31310/ -SRC_URI += "file://Perform-Cynara-runtime-policy-checks-by-default.patch" - -DEPENDS += "cynara smack" -EXTRA_OECONF += "--enable-cynara" - -inherit distro_features_check -REQUIRED_DISTRO_FEATURES += "smack" - -# Only the main package gets created here, everything else remains in the -# normal dbus recipe. -do_install_append () { - for i in ${@' '.join([d.getVar('D', True) + x for x in (' '.join([d.getVar('FILES_${PN}-' + p, True) or '' for p in ['lib', 'dev', 'staticdev', 'doc', 'locale', 'ptest']])).split()])}; do - rm -rf $i - done - - # Try to remove empty directories, starting with the - # longest path (= deepest directory) first. - # Find needs a valid current directory. Somehow the directory - # we get called in is gone by the time that we get invoked. - ( cd ${D} - for i in `find . -type d | sort -r`; do - rmdir $i || true - done - ) -} - -# Avoid warning about dbus and dbus-cynara providing dbus-x11. -RPROVIDES_${PN}_remove = "${OLDPKGNAME}" diff --git a/meta-security/recipes-core/dbus/dbus-oe-core.inc b/meta-security/recipes-core/dbus/dbus-oe-core.inc deleted file mode 100644 index 3971081fd..000000000 --- a/meta-security/recipes-core/dbus/dbus-oe-core.inc +++ /dev/null @@ -1,170 +0,0 @@ -SUMMARY = "D-Bus message bus" -DESCRIPTION = "D-Bus is a message bus system, a simple way for applications to talk to one another. In addition to interprocess communication, D-Bus helps coordinate process lifecycle; it makes it simple and reliable to code a \"single instance\" application or daemon, and to launch applications and daemons on demand when their services are needed." -HOMEPAGE = "http://dbus.freedesktop.org" -SECTION = "base" -LICENSE = "AFL-2 | GPLv2+" -LIC_FILES_CHKSUM = "file://COPYING;md5=10dded3b58148f3f1fd804b26354af3e \ - file://dbus/dbus.h;beginline=6;endline=20;md5=7755c9d7abccd5dbd25a6a974538bb3c" -DEPENDS = "expat virtual/libintl" -RDEPENDS_dbus_class-native = "" -RDEPENDS_dbus_class-nativesdk = "" -PACKAGES += "${@bb.utils.contains('DISTRO_FEATURES', 'ptest', '${PN}-ptest', '', d)}" -ALLOW_EMPTY_dbus-ptest = "1" -RDEPENDS_dbus-ptest_class-target = "dbus-test-ptest" - -SRC_URI = "http://dbus.freedesktop.org/releases/dbus/dbus-${PV}.tar.gz \ - file://tmpdir.patch \ - file://dbus-1.init \ - file://os-test.patch \ - file://clear-guid_from_server-if-send_negotiate_unix_f.patch \ -" - -inherit useradd autotools pkgconfig gettext update-rc.d - -INITSCRIPT_NAME = "dbus-1" -INITSCRIPT_PARAMS = "start 02 5 3 2 . stop 20 0 1 6 ." - -python __anonymous() { - if not bb.utils.contains('DISTRO_FEATURES', 'sysvinit', True, False, d): - d.setVar("INHIBIT_UPDATERCD_BBCLASS", "1") -} - -USERADD_PACKAGES = "${PN}" -GROUPADD_PARAM_${PN} = "-r netdev" -USERADD_PARAM_${PN} = "--system --home ${localstatedir}/lib/dbus \ - --no-create-home --shell /bin/false \ - --user-group messagebus" - -CONFFILES_${PN} = "${sysconfdir}/dbus-1/system.conf ${sysconfdir}/dbus-1/session.conf" - -DEBIANNAME_${PN} = "dbus-1" - -PACKAGES =+ "${PN}-lib" - -OLDPKGNAME = "dbus-x11" -OLDPKGNAME_class-nativesdk = "" - -# for compatibility -RPROVIDES_${PN} = "${OLDPKGNAME}" -RREPLACES_${PN} += "${OLDPKGNAME}" - -FILES_${PN} = "${bindir}/dbus-daemon* \ - ${bindir}/dbus-uuidgen \ - ${bindir}/dbus-cleanup-sockets \ - ${bindir}/dbus-send \ - ${bindir}/dbus-monitor \ - ${bindir}/dbus-launch \ - ${bindir}/dbus-run-session \ - ${libexecdir}/dbus* \ - ${sysconfdir} \ - ${localstatedir} \ - ${datadir}/dbus-1/services \ - ${datadir}/dbus-1/system-services \ - ${systemd_unitdir}/system/" -FILES_${PN}-lib = "${libdir}/lib*.so.*" -RRECOMMENDS_${PN}-lib = "${PN}" -FILES_${PN}-dev += "${libdir}/dbus-1.0/include ${bindir}/dbus-glib-tool" - -pkg_postinst_dbus() { - # If both systemd and sysvinit are enabled, mask the dbus-1 init script - if ${@bb.utils.contains('DISTRO_FEATURES','systemd sysvinit','true','false',d)}; then - if [ -n "$D" ]; then - OPTS="--root=$D" - fi - systemctl $OPTS mask dbus-1.service - fi - - if [ -z "$D" ] && [ -e /etc/init.d/populate-volatile.sh ] ; then - /etc/init.d/populate-volatile.sh update - fi -} - -EXTRA_OECONF = "--disable-tests \ - --disable-xml-docs \ - --disable-doxygen-docs \ - --disable-libaudit \ - --disable-systemd \ - --without-dbus-glib" - -EXTRA_OECONF_append_class-native = " --disable-selinux" - -PACKAGECONFIG ??= "${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'systemd', '', d)} \ - ${@bb.utils.contains('DISTRO_FEATURES', 'x11', 'x11', '', d)}" -PACKAGECONFIG_class-native = "" -PACKAGECONFIG_class-nativesdk = "" - -# Would like to --enable-systemd but that's a circular build-dependency between -# systemd<->dbus -PACKAGECONFIG[systemd] = "--with-systemdsystemunitdir=${systemd_unitdir}/system/,--without-systemdsystemunitdir" -PACKAGECONFIG[x11] = "--with-x --enable-x11-autolaunch,--without-x --disable-x11-autolaunch, virtual/libx11 libsm" - -do_install() { - autotools_do_install - - if ${@bb.utils.contains('DISTRO_FEATURES', 'sysvinit', 'true', 'false', d)}; then - install -d ${D}${sysconfdir}/init.d - sed 's:@bindir@:${bindir}:' < ${WORKDIR}/dbus-1.init >${WORKDIR}/dbus-1.init.sh - install -m 0755 ${WORKDIR}/dbus-1.init.sh ${D}${sysconfdir}/init.d/dbus-1 - fi - - if ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}; then - for i in dbus.target.wants sockets.target.wants multi-user.target.wants; do \ - install -d ${D}${systemd_unitdir}/system/$i; done - install -m 0644 ${B}/bus/dbus.service ${B}/bus/dbus.socket ${D}${systemd_unitdir}/system/ - cd ${D}${systemd_unitdir}/system/dbus.target.wants/ - ln -fs ../dbus.socket ${D}${systemd_unitdir}/system/dbus.target.wants/dbus.socket - ln -fs ../dbus.socket ${D}${systemd_unitdir}/system/sockets.target.wants/dbus.socket - ln -fs ../dbus.service ${D}${systemd_unitdir}/system/multi-user.target.wants/dbus.service - fi - - install -d ${D}${sysconfdir}/default/volatiles - echo "d messagebus messagebus 0755 ${localstatedir}/run/dbus none" \ - > ${D}${sysconfdir}/default/volatiles/99_dbus - - - mkdir -p ${D}${localstatedir}/lib/dbus - - chown messagebus:messagebus ${D}${localstatedir}/lib/dbus - - chown root:messagebus ${D}${libexecdir}/dbus-daemon-launch-helper - chmod 4755 ${D}${libexecdir}/dbus-daemon-launch-helper - - # Remove Red Hat initscript - rm -rf ${D}${sysconfdir}/rc.d - - # Remove empty testexec directory as we don't build tests - rm -rf ${D}${libdir}/dbus-1.0/test - - # Remove /var/run as it is created on startup - rm -rf ${D}${localstatedir}/run -} - -do_install_class-native() { - autotools_do_install - - # for dbus-glib-native introspection generation - install -d ${D}${STAGING_DATADIR_NATIVE}/dbus/ - # N.B. is below install actually required? - install -m 0644 bus/session.conf ${D}${STAGING_DATADIR_NATIVE}/dbus/session.conf - - # dbus-glib-native and dbus-glib need this xml file - ./bus/dbus-daemon --introspect > ${D}${STAGING_DATADIR_NATIVE}/dbus/dbus-bus-introspect.xml - - # dbus-launch has no X support so lets not install it in case the host - # has a more featured and useful version - rm -f ${D}${bindir}/dbus-launch -} - -do_install_class-nativesdk() { - autotools_do_install - - # dbus-launch has no X support so lets not install it in case the host - # has a more featured and useful version - rm -f ${D}${bindir}/dbus-launch - - # Remove /var/run to avoid QA error - rm -rf ${D}${localstatedir}/run -} -BBCLASSEXTEND = "native nativesdk" - -INSANE_SKIP_${PN}-ptest += "build-deps" diff --git a/meta-security/recipes-core/dbus/dbus_%.bbappend b/meta-security/recipes-core/dbus/dbus_%.bbappend deleted file mode 100644 index e352b4d05..000000000 --- a/meta-security/recipes-core/dbus/dbus_%.bbappend +++ /dev/null @@ -1,27 +0,0 @@ -# Optionally, compilation of the main package with the daemon gets moved into -# dbus-cynara. That is necessary to break a dependency cycle once the -# daemon gets compiled with Cynara support (dbus -> cynara -> systemd -# -> dbus). -do_install_append_class-target () { - if ${@bb.utils.contains('DISTRO_FEATURES', 'dbus-cynara', 'true', 'false', d)}; then - for i in ${@' '.join([d.getVar('D', True) + x for x in (d.getVar('FILES_${PN}', True) or '').split()])}; do - rm -rf $i - done - - # Try to remove empty directories, starting with the - # longest path (= deepest directory) first. - # Find needs a valid current directory. Somehow the directory - # we get called in is gone by the time that we get invoked. - ( cd ${D} - for i in `find . -type d | sort -r`; do - rmdir $i || true - done - ) - fi -} - -# The main package will be empty, but we want to have it created -# anyway because of the dependencies on it. Installing it will pull in -# the replacement dbus-cynara package. -ALLOW_EMPTY_${PN}_class-target = "1" -RDEPENDS_${PN}_append_class-target = "${@bb.utils.contains('DISTRO_FEATURES', 'dbus-cynara', ' dbus-cynara', '', d)}" |