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NetworkManager/src/nm-iface-helper.c

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iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
*
* 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.
*
* Copyright (C) 2014 Red Hat, Inc.
*/
all: cleanup includes and let "nm-default.h" include "config.h" - All internal source files (except "examples", which are not internal) should include "config.h" first. As also all internal source files should include "nm-default.h", let "config.h" be included by "nm-default.h" and include "nm-default.h" as first in every source file. We already wanted to include "nm-default.h" before other headers because it might contains some fixes (like "nm-glib.h" compatibility) that is required first. - After including "nm-default.h", we optinally allow for including the corresponding header file for the source file at hand. The idea is to ensure that each header file is self contained. - Don't include "config.h" or "nm-default.h" in any header file (except "nm-sd-adapt.h"). Public headers anyway must not include these headers, and internal headers are never included after "nm-default.h", as of the first previous point. - Include all internal headers with quotes instead of angle brackets. In practice it doesn't matter, because in our public headers we must include other headers with angle brackets. As we use our public headers also to compile our interal source files, effectively the result must be the same. Still do it for consistency. - Except for <config.h> itself. Include it with angle brackets as suggested by https://www.gnu.org/software/autoconf/manual/autoconf.html#Configuration-Headers
2016-02-19 14:57:48 +01:00
#include "nm-default.h"
all: consistently include config.h config.h should be included from every .c file, and it should be included before any other include. Fix that. (As a side effect of how I did this, this also changes us to consistently use "config.h" rather than <config.h>. To the extent that it matters [which is not much], quotes are more correct anyway, since we're talking about a file in our own build tree, not a system include.)
2014-11-13 10:07:02 -05:00
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
#include <glib-unix.h>
#include <getopt.h>
#include <locale.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <signal.h>
core: use ipv4.route-table setting for other IPv4 routes Including device-routes, default-route, DHCPv4, IPv4LL.
2017-09-28 14:40:12 +02:00
#include <linux/rtnetlink.h>
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
iface-helper: fix non-reentrant call to platform for failed IPv6 DAD Platform invokes change events while reading netlink events. However, platform code is not re-entrant and calling into platform again is not allowed (aside operations that do not process the netlink socket, like lookup of the platform cache). That basically means, we have to always process events in an idle handler. That is not a too strong limitation, because we anyway don't know the call context in which the platform event is emitted and we should avoid unguarded recursive calls into platform. Otherwise, we get hit an assertion/crash in nm-iface-helper: 1 raise() 2 abort() 3 g_assertion_message() 4 g_assertion_message_expr() 5 do_delete_object() 6 ip6_address_delete() >>> 7 nm_platform_ip6_address_delete() 8 nm_platform_ip6_address_sync() 9 nm_ip6_config_commit() 10 ndisc_config_changed() 11 ffi_call_unix64() 12 ffi_call() 13 g_cclosure_marshal_generic_va() 14 _g_closure_invoke_va() 15 g_signal_emit_valist() 16 g_signal_emit() >>> 17 nm_ndisc_dad_failed() 18 ffi_call_unix64() 19 ffi_call() 20 g_cclosure_marshal_generic() 21 g_closure_invoke() 22 signal_emit_unlocked_R() 23 g_signal_emit_valist() 24 g_signal_emit() >>> 25 nm_platform_cache_update_emit_signal() 26 event_handler_recvmsgs() 27 event_handler_read_netlink() 28 delayed_action_handle_one() 29 delayed_action_handle_all() 30 do_delete_object() 31 ip6_address_delete() 32 nm_platform_ip6_address_delete() 33 nm_platform_ip6_address_sync() >>> 34 nm_ip6_config_commit() 35 ndisc_config_changed() 36 ffi_call_unix64() 37 ffi_call() 38 g_cclosure_marshal_generic_va() 39 _g_closure_invoke_va() 40 g_signal_emit_valist() 41 g_signal_emit() 42 check_timestamps() 43 receive_ra() 44 ndp_call_eventfd_handler() 45 ndp_callall_eventfd_handler() 46 event_ready() 47 g_main_context_dispatch() 48 g_main_context_iterate.isra.22() 49 g_main_loop_run() >>> 50 main() NMPlatform already has a check to assert against recursive calls in delayed_action_handle_all(): g_return_val_if_fail (priv->delayed_action.is_handling == 0, FALSE); priv->delayed_action.is_handling++; ... priv->delayed_action.is_handling--; Fixes: f85728ecff824b1fece43aba51d8171db2766ea2 https://bugzilla.redhat.com/show_bug.cgi?id=1546656
2018-02-19 16:13:06 +01:00
#include "nm-utils/nm-c-list.h"
systemd: split "nm-sd.h" out of "nm-sd-adapt.h" Now we have: "nm-sd.h" is a header file of NetworkManager with utilities related to systemd. It can be used anywhere freely. Also, systemd headers that are considered public API (like "sd-event.h") can be used without restrictions. When compiling the systemd sources, we always must include "nm-sd-adapt.h" as first. Similarly, systemd headers must not include "nm-sd-adapt.h", because they are either public (in which case the adapter is not needed) or they are internal (in which case they are themself included via a systemd source). Sometimes, we must internal API (like "dhcp-lease-internal.h"). In this case, we also must include "nm-sd-adapt.h".
2016-03-11 10:25:40 +01:00
#include "main-utils.h"
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
#include "NetworkManagerUtils.h"
build: don't add subdirectories to include search path but require qualified include Keep the include paths clean and separate. We use directories to group source files together. That makes sense (I guess), but then we should use this grouping also when including files. Thus require to #include files with their path relative to "src/". Also, we build various artifacts from the "src/" tree. Instead of having individual CFLAGS for each artifact in Makefile.am, the CFLAGS should be unified. Previously, the CFLAGS for each artifact differ and are inconsistent in which paths they add to the search path. Fix the inconsistency by just don't add the paths at all.
2016-11-21 00:43:52 +01:00
#include "platform/nm-linux-platform.h"
platform: use wrappers for if_nametoindex() and if_indextoname()
2016-12-26 12:00:08 +01:00
#include "platform/nm-platform-utils.h"
build: don't add subdirectories to include search path but require qualified include Keep the include paths clean and separate. We use directories to group source files together. That makes sense (I guess), but then we should use this grouping also when including files. Thus require to #include files with their path relative to "src/". Also, we build various artifacts from the "src/" tree. Instead of having individual CFLAGS for each artifact in Makefile.am, the CFLAGS should be unified. Previously, the CFLAGS for each artifact differ and are inconsistent in which paths they add to the search path. Fix the inconsistency by just don't add the paths at all.
2016-11-21 00:43:52 +01:00
#include "dhcp/nm-dhcp-manager.h"
#include "ndisc/nm-ndisc.h"
#include "ndisc/nm-lndp-ndisc.h"
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
#include "nm-utils.h"
core: add support for RFC7217 stable privacy addressing RFC7217 introduces an alternative mechanism for creating addresses during stateless IPv6 address configuration. It's supposed to create addresses whose host part stays stable in a particular network but changes when the hosts enters another network to mitigate possibility of tracking the host movement. It can be used alongside RFC 4941 privacy extensions (temporary addresses) and replaces the use of RFC 4862 interface identifiers. The address creation mode is controlld by ip6.addr_gen_mode property (ADDR_GEN_MODE in ifcfg-rh), with values of "stable-privacy" and "eui-64", defaulting to "eui-64" if unspecified. The host part of an address is computed by hashing a system-specific secret salted with various stable values that identify the connection with a secure hash algorithm: RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) For NetworkManager we use these parameters: * F() SHA256 hash function. * Prefix This is a network part of the /64 address * Net_Iface We use the interface name (e.g. "eth0"). This ensures the address won't change with the change of interface hardware. * Network_ID We use the connection UUID here. This ensures the salt is different for wireless networks with a different SSID as suggested by RFC7217. * DAD_Counter A per-address counter that increases with each DAD failure. * secret_key We store the secret key in /var/lib/NetworkManager/secret_key. If it's shorter than 128 bits then it's rejected. If the file is not present we initialize it by fetching 256 pseudo-random bits from /dev/urandom on first use. Duplicate address detection uses IDGEN_RETRIES = 3 and does not utilize the IDGEN_DELAY delay (despite it SHOULD). This is for ease of implementation and may change in future. Neither parameter is currently configurable.
2015-10-03 19:44:27 +02:00
#include "nm-setting-ip6-config.h"
build: don't add systemd path the include search path Our internal copy of systemd should not be in the search path. Instead, let users only #include "systemd/nm-sd.h" which then includes everything from systemd that we need. We want to avoid to accidentally include anything from our systemd-copy. Any user of that should only include "nm-sd.h", which then includes everything that is needed further. For example, "src/devices/wwan/nm-modem-manager.c" has #include <systemd/nm-daemon.h> which in turn includes #include "_sd-common.h" This works all correctly before, because #include "" will first look in the directory where sd-daemon.h is. However, our mixing of external systemd library and internal copy is rather dangerous. Try to avoid it further by keeping the include paths clean.
2016-09-27 13:35:29 +02:00
#include "systemd/nm-sd.h"
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
#if !defined(NM_DIST_VERSION)
# define NM_DIST_VERSION VERSION
#endif
#define NMIH_PID_FILE_FMT NMRUNDIR "/nm-iface-helper-%d.pid"
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
/*****************************************************************************/
static struct {
GMainLoop *main_loop;
int ifindex;
iface-helper: fix non-reentrant call to platform for failed IPv6 DAD Platform invokes change events while reading netlink events. However, platform code is not re-entrant and calling into platform again is not allowed (aside operations that do not process the netlink socket, like lookup of the platform cache). That basically means, we have to always process events in an idle handler. That is not a too strong limitation, because we anyway don't know the call context in which the platform event is emitted and we should avoid unguarded recursive calls into platform. Otherwise, we get hit an assertion/crash in nm-iface-helper: 1 raise() 2 abort() 3 g_assertion_message() 4 g_assertion_message_expr() 5 do_delete_object() 6 ip6_address_delete() >>> 7 nm_platform_ip6_address_delete() 8 nm_platform_ip6_address_sync() 9 nm_ip6_config_commit() 10 ndisc_config_changed() 11 ffi_call_unix64() 12 ffi_call() 13 g_cclosure_marshal_generic_va() 14 _g_closure_invoke_va() 15 g_signal_emit_valist() 16 g_signal_emit() >>> 17 nm_ndisc_dad_failed() 18 ffi_call_unix64() 19 ffi_call() 20 g_cclosure_marshal_generic() 21 g_closure_invoke() 22 signal_emit_unlocked_R() 23 g_signal_emit_valist() 24 g_signal_emit() >>> 25 nm_platform_cache_update_emit_signal() 26 event_handler_recvmsgs() 27 event_handler_read_netlink() 28 delayed_action_handle_one() 29 delayed_action_handle_all() 30 do_delete_object() 31 ip6_address_delete() 32 nm_platform_ip6_address_delete() 33 nm_platform_ip6_address_sync() >>> 34 nm_ip6_config_commit() 35 ndisc_config_changed() 36 ffi_call_unix64() 37 ffi_call() 38 g_cclosure_marshal_generic_va() 39 _g_closure_invoke_va() 40 g_signal_emit_valist() 41 g_signal_emit() 42 check_timestamps() 43 receive_ra() 44 ndp_call_eventfd_handler() 45 ndp_callall_eventfd_handler() 46 event_ready() 47 g_main_context_dispatch() 48 g_main_context_iterate.isra.22() 49 g_main_loop_run() >>> 50 main() NMPlatform already has a check to assert against recursive calls in delayed_action_handle_all(): g_return_val_if_fail (priv->delayed_action.is_handling == 0, FALSE); priv->delayed_action.is_handling++; ... priv->delayed_action.is_handling--; Fixes: f85728ecff824b1fece43aba51d8171db2766ea2 https://bugzilla.redhat.com/show_bug.cgi?id=1546656
2018-02-19 16:13:06 +01:00
guint dad_failed_id;
CList dad_failed_lst_head;
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
} gl/*obal*/ = {
.ifindex = -1,
};
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
static struct {
gboolean slaac;
gboolean show_version;
gboolean become_daemon;
gboolean debug;
gboolean g_fatal_warnings;
gboolean slaac_required;
gboolean dhcp4_required;
int tempaddr;
char *ifname;
char *uuid;
core: prefer connection.stable-id to generate IPv6 stable privacy addresses The Network_ID for generating RFC 7217 stable privacy IPv6 addresses is by default the UUID of the connection. Alternatively, prefer "connection.stable-id" as Network_ID to generate the stable addresses. This allows to configure a set of connections that all use the same Network_ID for generating stable addresses. Note that the stable-id and the UUID do no overlap, that is two connections [connection] uuid=uuid1 stable-id= and [connection] uuid=uuid2 stable-id=uuid1 generate distinct addresses.
2016-06-21 18:07:56 +02:00
char *stable_id;
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
char *dhcp4_address;
char *dhcp4_clientid;
char *dhcp4_hostname;
dhcp4: send FQDN option when ipv4.dhcp-fqdn is set Modify the 3 DHCP client backends to support the new property.
2015-10-13 15:13:26 +02:00
char *dhcp4_fqdn;
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
char *iid_str;
core: add support for RFC7217 stable privacy addressing RFC7217 introduces an alternative mechanism for creating addresses during stateless IPv6 address configuration. It's supposed to create addresses whose host part stays stable in a particular network but changes when the hosts enters another network to mitigate possibility of tracking the host movement. It can be used alongside RFC 4941 privacy extensions (temporary addresses) and replaces the use of RFC 4862 interface identifiers. The address creation mode is controlld by ip6.addr_gen_mode property (ADDR_GEN_MODE in ifcfg-rh), with values of "stable-privacy" and "eui-64", defaulting to "eui-64" if unspecified. The host part of an address is computed by hashing a system-specific secret salted with various stable values that identify the connection with a secure hash algorithm: RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) For NetworkManager we use these parameters: * F() SHA256 hash function. * Prefix This is a network part of the /64 address * Net_Iface We use the interface name (e.g. "eth0"). This ensures the address won't change with the change of interface hardware. * Network_ID We use the connection UUID here. This ensures the salt is different for wireless networks with a different SSID as suggested by RFC7217. * DAD_Counter A per-address counter that increases with each DAD failure. * secret_key We store the secret key in /var/lib/NetworkManager/secret_key. If it's shorter than 128 bits then it's rejected. If the file is not present we initialize it by fetching 256 pseudo-random bits from /dev/urandom on first use. Duplicate address detection uses IDGEN_RETRIES = 3 and does not utilize the IDGEN_DELAY delay (despite it SHOULD). This is for ease of implementation and may change in future. Neither parameter is currently configurable.
2015-10-03 19:44:27 +02:00
NMSettingIP6ConfigAddrGenMode addr_gen_mode;
logging: make use of journal configurable
2015-07-08 19:34:34 +02:00
char *logging_backend;
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
char *opt_log_level;
char *opt_log_domains;
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
guint32 priority_v4;
guint32 priority_v6;
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
} global_opt = {
.tempaddr = NM_SETTING_IP6_CONFIG_PRIVACY_UNKNOWN,
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
.priority_v4 = NM_PLATFORM_ROUTE_METRIC_DEFAULT_IP4,
.priority_v6 = NM_PLATFORM_ROUTE_METRIC_DEFAULT_IP6,
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
};
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
/*****************************************************************************/
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
#define _NMLOG_PREFIX_NAME "nm-iface-helper"
#define _NMLOG(level, domain, ...) \
iface-helper: log the device context
2017-03-02 21:17:22 +01:00
nm_log ((level), (domain), global_opt.ifname, NULL, \
iface-helper: set logging prefix
2016-10-05 15:34:06 +02:00
"iface-helper: " _NM_UTILS_MACRO_FIRST (__VA_ARGS__) \
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_NM_UTILS_MACRO_REST (__VA_ARGS__))
/*****************************************************************************/
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
static void
dhcp4_state_changed (NMDhcpClient *client,
NMDhcpState state,
NMIP4Config *ip4_config,
GHashTable *options,
device: accept multiple addresses in a DHCPv6 lease When the DHCPv6 lease received from the server contains multiple addresses, dhclient generates a new BOUND event for each of them. Instead of overwriting the previous IP6 configuration for each BOUND event, we should try to detect if the new configuration belongs to the same lease and merge its addresses with the existing one in such case. This allows NetworkManager to configure multiple addresses on an interface via DHCPv6. https://bugzilla.gnome.org/show_bug.cgi?id=681764 https://bugzilla.redhat.com/show_bug.cgi?id=1244293
2015-08-04 11:30:03 +02:00
const char *event_id,
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
gpointer user_data)
{
static NMIP4Config *last_config = NULL;
NMIP4Config *existing;
core: track IPv4 device routes in NMIP4Config For IPv6, we create device routes when processing the RA and add it to NMIP6Config like any other route. For IPv4 we didn't do that. Instead we created the list of device routes during nm_ip4_config_commit() and passed it to nm_platform_ip_route_sync().
2017-09-12 13:45:53 +02:00
gs_unref_ptrarray GPtrArray *ip4_dev_route_blacklist = NULL;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
g_return_if_fail (!ip4_config || NM_IS_IP4_CONFIG (ip4_config));
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGD (LOGD_DHCP4, "new DHCPv4 client state %d", state);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
switch (state) {
case NM_DHCP_STATE_BOUND:
g_assert (ip4_config);
platform: add non-exclusive routes and drop route-manager Previously, we would add exclusive routes via netlink message flags NLM_F_CREATE | NLM_F_REPLACE for RTM_NEWROUTE. Similar to `ip route replace`. Using that form of RTM_NEWROUTE message, we could only add a certain route with a certain network/plen,metric triple once. That was already hugely inconvenient, because - when configuring routes, multiple (managed) interfaces may get conflicting routes (multihoming). Only one of the routes can be actually configured using `ip route replace`, so we need to track routes that are currently shadowed. - when configuring routes, we might replace externally configured routes on unmanaged interfaces. We should not interfere with such routes. That was worked around by having NMRouteManager (and NMDefaultRouteManager). NMRouteManager would keep a list of the routes which NetworkManager would like to configure, even if momentarily being unable to do so due to conflicting routes. This worked mostly well but was complicated. It involved bumping metrics to avoid conflicts for device routes, as we might require them for gateway routes. Drop that now. Instead, use the corresponding of `ip route append` to configure routes. This allows NetworkManager to confiure (almost) all routes that we care. Especially, it can configure all routes on a managed interface, without replacing/interfering with routes on other interfaces. Hence, NMRouteManager becomes obsolete. It practice it is a bit more complicated because: - when adding an IPv4 address, kernel will automatically create a device route for the subnet. We should avoid that by using the IFA_F_NOPREFIXROUTE flag for IPv4 addresses (still to-do). But as kernel may not support that flag for IPv4 addresses yet (and we don't require such a kernel yet), we still need functionality similar to nm_route_manager_ip4_route_register_device_route_purge_list(). This functionality is now handled via nm_platform_ip4_dev_route_blacklist_set(). - trying to configure an IPv6 route with a source address will be rejected by kernel as long as the address is tentative (see related bug rh#1457196). Preferably, NMDevice would keep the list of routes which should be configured, while kernel would have the list of what actually is configured. There is a feed-back loop where both affect each other (for example, when externally deleting a route, NMDevice must forget about it too). Previously, NMRouteManager would have the task of remembering all routes which we currently want to configure, but cannot due to conflicting routes. We get rid of that, because now we configure non-exclusive routes. We however still will need to remember IPv6 routes with a source address, that currently cannot be configured yet. Hence, we will need to keep track of routes that currently cannot be configured, but later may be. That is still not done yet, as NMRouteManager didn't handle this correctly either.
2017-08-14 14:18:53 +02:00
g_assert (nm_ip4_config_get_ifindex (ip4_config) == gl.ifindex);
core: pass NMDedupMultiIndex instance to NMIP4Config and other NMIP4Config, NMIP6Config, and NMPlatform shall share one NMDedupMultiIndex instance. For that, pass an NMDedupMultiIndex instance to NMPlatform and NMNetns. NMNetns than passes it on to NMDevice, NMDhcpClient, NMIP4Config and NMIP6Config. So currently NMNetns is the access point to the shared NMDedupMultiIndex instance, and it gets it from it's NMPlatform instance. The NMDedupMultiIndex instance is really a singleton, we don't want multiple instances of it. However, for testing, instead of adding a singleton instance, pass the instance explicitly around.
2017-06-12 08:16:47 +02:00
existing = nm_ip4_config_capture (nm_platform_get_multi_idx (NM_PLATFORM_GET),
device: don't capture resolve.conf for initial device config This was called by via ... - manager:recheck_assume_connection() - manager:get_existing_connection() - nm_device_capture_initial_config() - update_ext_ip_config(initial=TRUE) and would parse resolv.conf, and try to fill the device IP config with nameservers and dns-options. But why? It would only have effect if NM was started with nm_dns_manager_get_resolv_conf_explicit(), but is that really sensible? And it would only take effect on devices that have a default route. And for what is this information even used? Let's not do it this way. If we need this information for assuming or external sys-iface mode, then it should be explicitly loaded at the appropriate moment. For now, drop it and see what breaks. Then we can fix it properly. If it even matters.
2018-03-09 18:43:53 +01:00
NM_PLATFORM_GET, gl.ifindex);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
if (last_config)
core: rework tracking of gateway/default-route in ip-config Instead of having 3 properties @gateway, @never_default and @has_gateway on NMIP4Config/NMIP6Config that determine the default-route, track the default-route as a regular route. The gateway setting is the configuration knob for the default-route. Since an NMIP4Config/NMIP6Config instance only has one gateway property, it cannot track more then one default-routes (see related bug rh#1445417). Especially with policy routing, it might be interesting to configure a default-route in multiple tables. Also, later it might be interesting to allow adding default-routes as regular static routes in a connection, so that the user can configure additional route parameters for the default-route or add default-routes in multiple tables. With this patch, default-routes now have a rt_source property according to their origin. Also, the previous commits of this branch broke handling of the default-route :) . That should be working now again.
2017-10-04 15:21:21 +02:00
nm_ip4_config_subtract (existing, last_config, 0);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
core: rework tracking of gateway/default-route in ip-config Instead of having 3 properties @gateway, @never_default and @has_gateway on NMIP4Config/NMIP6Config that determine the default-route, track the default-route as a regular route. The gateway setting is the configuration knob for the default-route. Since an NMIP4Config/NMIP6Config instance only has one gateway property, it cannot track more then one default-routes (see related bug rh#1445417). Especially with policy routing, it might be interesting to configure a default-route in multiple tables. Also, later it might be interesting to allow adding default-routes as regular static routes in a connection, so that the user can configure additional route parameters for the default-route or add default-routes in multiple tables. With this patch, default-routes now have a rt_source property according to their origin. Also, the previous commits of this branch broke handling of the default-route :) . That should be working now again.
2017-10-04 15:21:21 +02:00
nm_ip4_config_merge (existing, ip4_config, NM_IP_CONFIG_MERGE_DEFAULT, 0);
nm_ip4_config_add_dependent_routes (existing,
RT_TABLE_MAIN,
global_opt.priority_v4,
&ip4_dev_route_blacklist);
platform: add non-exclusive routes and drop route-manager Previously, we would add exclusive routes via netlink message flags NLM_F_CREATE | NLM_F_REPLACE for RTM_NEWROUTE. Similar to `ip route replace`. Using that form of RTM_NEWROUTE message, we could only add a certain route with a certain network/plen,metric triple once. That was already hugely inconvenient, because - when configuring routes, multiple (managed) interfaces may get conflicting routes (multihoming). Only one of the routes can be actually configured using `ip route replace`, so we need to track routes that are currently shadowed. - when configuring routes, we might replace externally configured routes on unmanaged interfaces. We should not interfere with such routes. That was worked around by having NMRouteManager (and NMDefaultRouteManager). NMRouteManager would keep a list of the routes which NetworkManager would like to configure, even if momentarily being unable to do so due to conflicting routes. This worked mostly well but was complicated. It involved bumping metrics to avoid conflicts for device routes, as we might require them for gateway routes. Drop that now. Instead, use the corresponding of `ip route append` to configure routes. This allows NetworkManager to confiure (almost) all routes that we care. Especially, it can configure all routes on a managed interface, without replacing/interfering with routes on other interfaces. Hence, NMRouteManager becomes obsolete. It practice it is a bit more complicated because: - when adding an IPv4 address, kernel will automatically create a device route for the subnet. We should avoid that by using the IFA_F_NOPREFIXROUTE flag for IPv4 addresses (still to-do). But as kernel may not support that flag for IPv4 addresses yet (and we don't require such a kernel yet), we still need functionality similar to nm_route_manager_ip4_route_register_device_route_purge_list(). This functionality is now handled via nm_platform_ip4_dev_route_blacklist_set(). - trying to configure an IPv6 route with a source address will be rejected by kernel as long as the address is tentative (see related bug rh#1457196). Preferably, NMDevice would keep the list of routes which should be configured, while kernel would have the list of what actually is configured. There is a feed-back loop where both affect each other (for example, when externally deleting a route, NMDevice must forget about it too). Previously, NMRouteManager would have the task of remembering all routes which we currently want to configure, but cannot due to conflicting routes. We get rid of that, because now we configure non-exclusive routes. We however still will need to remember IPv6 routes with a source address, that currently cannot be configured yet. Hence, we will need to keep track of routes that currently cannot be configured, but later may be. That is still not done yet, as NMRouteManager didn't handle this correctly either.
2017-08-14 14:18:53 +02:00
if (!nm_ip4_config_commit (existing,
libnm,core: add TABLE attribute for routes settings https://bugzilla.redhat.com/show_bug.cgi?id=1436531
2017-09-13 17:42:41 +02:00
NM_PLATFORM_GET,
NM_IP_ROUTE_TABLE_SYNC_MODE_MAIN))
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGW (LOGD_DHCP4, "failed to apply DHCPv4 config");
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
core: track IPv4 device routes in NMIP4Config For IPv6, we create device routes when processing the RA and add it to NMIP6Config like any other route. For IPv4 we didn't do that. Instead we created the list of device routes during nm_ip4_config_commit() and passed it to nm_platform_ip_route_sync().
2017-09-12 13:45:53 +02:00
nm_platform_ip4_dev_route_blacklist_set (NM_PLATFORM_GET,
gl.ifindex,
ip4_dev_route_blacklist);
nm-iface-helper: set last_config properly Update last_config outside of the conditional; otherwise it will always remain set to NULL. Signed-off-by: David Ward <david.ward@ll.mit.edu> Acked-By: Thomas Haller <thaller@redhat.com>
2015-04-24 22:38:21 -04:00
if (last_config)
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
g_object_unref (last_config);
core: pass NMDedupMultiIndex instance to NMIP4Config and other NMIP4Config, NMIP6Config, and NMPlatform shall share one NMDedupMultiIndex instance. For that, pass an NMDedupMultiIndex instance to NMPlatform and NMNetns. NMNetns than passes it on to NMDevice, NMDhcpClient, NMIP4Config and NMIP6Config. So currently NMNetns is the access point to the shared NMDedupMultiIndex instance, and it gets it from it's NMPlatform instance. The NMDedupMultiIndex instance is really a singleton, we don't want multiple instances of it. However, for testing, instead of adding a singleton instance, pass the instance explicitly around.
2017-06-12 08:16:47 +02:00
last_config = nm_ip4_config_new (nm_platform_get_multi_idx (NM_PLATFORM_GET),
nm_dhcp_client_get_ifindex (client));
nm-iface-helper: set last_config properly Update last_config outside of the conditional; otherwise it will always remain set to NULL. Signed-off-by: David Ward <david.ward@ll.mit.edu> Acked-By: Thomas Haller <thaller@redhat.com>
2015-04-24 22:38:21 -04:00
nm_ip4_config_replace (last_config, ip4_config, NULL);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
break;
case NM_DHCP_STATE_TIMEOUT:
case NM_DHCP_STATE_DONE:
case NM_DHCP_STATE_FAIL:
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
if (global_opt.dhcp4_required) {
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGW (LOGD_DHCP4, "DHCPv4 timed out or failed, quitting...");
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
g_main_loop_quit (gl.main_loop);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
} else
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGW (LOGD_DHCP4, "DHCPv4 timed out or failed");
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
break;
default:
break;
}
}
static void
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
ndisc_config_changed (NMNDisc *ndisc, const NMNDiscData *rdata, guint changed_int, gpointer user_data)
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
{
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
NMNDiscConfigMap changed = changed_int;
static NMIP6Config *ndisc_config = NULL;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
NMIP6Config *existing;
core: pass NMDedupMultiIndex instance to NMIP4Config and other NMIP4Config, NMIP6Config, and NMPlatform shall share one NMDedupMultiIndex instance. For that, pass an NMDedupMultiIndex instance to NMPlatform and NMNetns. NMNetns than passes it on to NMDevice, NMDhcpClient, NMIP4Config and NMIP6Config. So currently NMNetns is the access point to the shared NMDedupMultiIndex instance, and it gets it from it's NMPlatform instance. The NMDedupMultiIndex instance is really a singleton, we don't want multiple instances of it. However, for testing, instead of adding a singleton instance, pass the instance explicitly around.
2017-06-12 08:16:47 +02:00
existing = nm_ip6_config_capture (nm_platform_get_multi_idx (NM_PLATFORM_GET),
device: don't capture resolve.conf for initial device config This was called by via ... - manager:recheck_assume_connection() - manager:get_existing_connection() - nm_device_capture_initial_config() - update_ext_ip_config(initial=TRUE) and would parse resolv.conf, and try to fill the device IP config with nameservers and dns-options. But why? It would only have effect if NM was started with nm_dns_manager_get_resolv_conf_explicit(), but is that really sensible? And it would only take effect on devices that have a default route. And for what is this information even used? Let's not do it this way. If we need this information for assuming or external sys-iface mode, then it should be explicitly loaded at the appropriate moment. For now, drop it and see what breaks. Then we can fix it properly. If it even matters.
2018-03-09 18:43:53 +01:00
NM_PLATFORM_GET, gl.ifindex, global_opt.tempaddr);
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
if (ndisc_config)
core: rework tracking of gateway/default-route in ip-config Instead of having 3 properties @gateway, @never_default and @has_gateway on NMIP4Config/NMIP6Config that determine the default-route, track the default-route as a regular route. The gateway setting is the configuration knob for the default-route. Since an NMIP4Config/NMIP6Config instance only has one gateway property, it cannot track more then one default-routes (see related bug rh#1445417). Especially with policy routing, it might be interesting to configure a default-route in multiple tables. Also, later it might be interesting to allow adding default-routes as regular static routes in a connection, so that the user can configure additional route parameters for the default-route or add default-routes in multiple tables. With this patch, default-routes now have a rt_source property according to their origin. Also, the previous commits of this branch broke handling of the default-route :) . That should be working now again.
2017-10-04 15:21:21 +02:00
nm_ip6_config_subtract (existing, ndisc_config, 0);
core: pass NMDedupMultiIndex instance to NMIP4Config and other NMIP4Config, NMIP6Config, and NMPlatform shall share one NMDedupMultiIndex instance. For that, pass an NMDedupMultiIndex instance to NMPlatform and NMNetns. NMNetns than passes it on to NMDevice, NMDhcpClient, NMIP4Config and NMIP6Config. So currently NMNetns is the access point to the shared NMDedupMultiIndex instance, and it gets it from it's NMPlatform instance. The NMDedupMultiIndex instance is really a singleton, we don't want multiple instances of it. However, for testing, instead of adding a singleton instance, pass the instance explicitly around.
2017-06-12 08:16:47 +02:00
else {
ndisc_config = nm_ip6_config_new (nm_platform_get_multi_idx (NM_PLATFORM_GET),
gl.ifindex);
}
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
if (changed & NM_NDISC_CONFIG_ADDRESSES) {
core: cleanup setting ifa_flags in ndisc_config_changed() Some refactoring and one change: If we don't have system-support, don't set IFA_F_MANAGETEMPADDR.
2017-08-16 14:50:01 +02:00
guint8 plen;
guint32 ifa_flags;
/* Check, whether kernel is recent enough to help user space handling RA.
* If it's not supported, we have no ipv6-privacy and must add autoconf
* addresses as /128. The reason for the /128 is to prevent the kernel
* from adding a prefix route for this address. */
ifa_flags = 0;
platform: refactor detecting kernel support We are going to add another parameter to check. Instead of adding multiple virtual functions, add a NMPlatformKernelSupportFlags flags enum.
2017-10-10 18:20:05 +02:00
if (nm_platform_check_kernel_support (NM_PLATFORM_GET,
NM_PLATFORM_KERNEL_SUPPORT_EXTENDED_IFA_FLAGS)) {
core: cleanup setting ifa_flags in ndisc_config_changed() Some refactoring and one change: If we don't have system-support, don't set IFA_F_MANAGETEMPADDR.
2017-08-16 14:50:01 +02:00
ifa_flags |= IFA_F_NOPREFIXROUTE;
if (NM_IN_SET (global_opt.tempaddr, NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_TEMP_ADDR,
NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_PUBLIC_ADDR))
ifa_flags |= IFA_F_MANAGETEMPADDR;
plen = 64;
} else
plen = 128;
core: move setting NDisc addresses/routes to NMIP6Config Add an utility function for resetting addresses/routes of NMIP6Config from NMNDisc data. For one, this de-duplicates code in device and nm-iface-helper. Also, we no longer first reset (delete) all addresses and add them anew. Instead, we first mark all entries as dirty for deletion, merge (append) the new entires, and delete the remaining dirty entires. This saves a extra work, in the expected case where NMIP6Config already contains several of the new entries.
2017-08-16 13:57:01 +02:00
nm_ip6_config_reset_addresses_ndisc (ndisc_config,
rdata->addresses,
rdata->addresses_n,
core: cleanup setting ifa_flags in ndisc_config_changed() Some refactoring and one change: If we don't have system-support, don't set IFA_F_MANAGETEMPADDR.
2017-08-16 14:50:01 +02:00
plen,
core: move setting NDisc addresses/routes to NMIP6Config Add an utility function for resetting addresses/routes of NMIP6Config from NMNDisc data. For one, this de-duplicates code in device and nm-iface-helper. Also, we no longer first reset (delete) all addresses and add them anew. Instead, we first mark all entries as dirty for deletion, merge (append) the new entires, and delete the remaining dirty entires. This saves a extra work, in the expected case where NMIP6Config already contains several of the new entries.
2017-08-16 13:57:01 +02:00
ifa_flags);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
core: rework tracking of gateway/default-route in ip-config Instead of having 3 properties @gateway, @never_default and @has_gateway on NMIP4Config/NMIP6Config that determine the default-route, track the default-route as a regular route. The gateway setting is the configuration knob for the default-route. Since an NMIP4Config/NMIP6Config instance only has one gateway property, it cannot track more then one default-routes (see related bug rh#1445417). Especially with policy routing, it might be interesting to configure a default-route in multiple tables. Also, later it might be interesting to allow adding default-routes as regular static routes in a connection, so that the user can configure additional route parameters for the default-route or add default-routes in multiple tables. With this patch, default-routes now have a rt_source property according to their origin. Also, the previous commits of this branch broke handling of the default-route :) . That should be working now again.
2017-10-04 15:21:21 +02:00
if (NM_FLAGS_ANY (changed, NM_NDISC_CONFIG_ROUTES
| NM_NDISC_CONFIG_GATEWAYS)) {
core: move setting NDisc addresses/routes to NMIP6Config Add an utility function for resetting addresses/routes of NMIP6Config from NMNDisc data. For one, this de-duplicates code in device and nm-iface-helper. Also, we no longer first reset (delete) all addresses and add them anew. Instead, we first mark all entries as dirty for deletion, merge (append) the new entires, and delete the remaining dirty entires. This saves a extra work, in the expected case where NMIP6Config already contains several of the new entries.
2017-08-16 13:57:01 +02:00
nm_ip6_config_reset_routes_ndisc (ndisc_config,
core: rework tracking of gateway/default-route in ip-config Instead of having 3 properties @gateway, @never_default and @has_gateway on NMIP4Config/NMIP6Config that determine the default-route, track the default-route as a regular route. The gateway setting is the configuration knob for the default-route. Since an NMIP4Config/NMIP6Config instance only has one gateway property, it cannot track more then one default-routes (see related bug rh#1445417). Especially with policy routing, it might be interesting to configure a default-route in multiple tables. Also, later it might be interesting to allow adding default-routes as regular static routes in a connection, so that the user can configure additional route parameters for the default-route or add default-routes in multiple tables. With this patch, default-routes now have a rt_source property according to their origin. Also, the previous commits of this branch broke handling of the default-route :) . That should be working now again.
2017-10-04 15:21:21 +02:00
rdata->gateways,
rdata->gateways_n,
core: move setting NDisc addresses/routes to NMIP6Config Add an utility function for resetting addresses/routes of NMIP6Config from NMNDisc data. For one, this de-duplicates code in device and nm-iface-helper. Also, we no longer first reset (delete) all addresses and add them anew. Instead, we first mark all entries as dirty for deletion, merge (append) the new entires, and delete the remaining dirty entires. This saves a extra work, in the expected case where NMIP6Config already contains several of the new entries.
2017-08-16 13:57:01 +02:00
rdata->routes,
rdata->routes_n,
core: use ipv6.route-table setting for other IPv6 routes Including device-routes, default-route, SLAAC.
2017-09-28 18:48:39 +02:00
RT_TABLE_MAIN,
core: use router preference for IPv6 routes For routes and the default-route from NDisc, set the router preference RTA_PREF. Also, previously, we would only configure one IPv6 default-route. That by itself was not really a problem, as long as NetworkManager would always make sure that it configured the route to the ~best~ router. Actually, NM should have done that already. It keeps the list of gateways sorted, and prefers them according to their preference. But maybe it didn't, so we have bug rh#1445417 (??). Change that by configuring a default-route for all gateways, with appropriate router prefrence. In case, kernel doesn't support RTA_PREF yet, only configure all routes that share the same maxiumum preference. https://bugzilla.redhat.com/show_bug.cgi?id=1445417
2017-10-09 10:58:47 +02:00
global_opt.priority_v6,
nm_platform_check_kernel_support (NM_PLATFORM_GET,
NM_PLATFORM_KERNEL_SUPPORT_RTA_PREF));
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
if (changed & NM_NDISC_CONFIG_DHCP_LEVEL) {
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
/* Unsupported until systemd DHCPv6 is ready */
}
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
if (changed & NM_NDISC_CONFIG_HOP_LIMIT)
rdisc: hide internal fields from NMRDisc API Hide the mutable fields that were exposed to the user of the NMRDisc API. Instead, only expose a constant NMRDiscData structure.
2016-07-07 13:25:38 +02:00
nm_platform_sysctl_set_ip6_hop_limit_safe (NM_PLATFORM_GET, global_opt.ifname, rdata->hop_limit);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
if (changed & NM_NDISC_CONFIG_MTU) {
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
char val[16];
core: merge IPv4 and IPv6 implementation of nm_utils_ip4_property_path() and nm_utils_ip6_property_path(). Also, rename to nm_utils_sysctl_ip_conf_path().
2017-10-23 13:55:54 +02:00
char sysctl_path_buf[NM_UTILS_SYSCTL_IP_CONF_PATH_BUFSIZE];
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
rdisc: hide internal fields from NMRDisc API Hide the mutable fields that were exposed to the user of the NMRDisc API. Instead, only expose a constant NMRDiscData structure.
2016-07-07 13:25:38 +02:00
g_snprintf (val, sizeof (val), "%d", rdata->mtu);
core: merge IPv4 and IPv6 implementation of nm_utils_ip4_property_path() and nm_utils_ip6_property_path(). Also, rename to nm_utils_sysctl_ip_conf_path().
2017-10-23 13:55:54 +02:00
nm_platform_sysctl_set (NM_PLATFORM_GET, NMP_SYSCTL_PATHID_ABSOLUTE (nm_utils_sysctl_ip_conf_path (AF_INET6, sysctl_path_buf, global_opt.ifname, "mtu")), val);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
core: rework tracking of gateway/default-route in ip-config Instead of having 3 properties @gateway, @never_default and @has_gateway on NMIP4Config/NMIP6Config that determine the default-route, track the default-route as a regular route. The gateway setting is the configuration knob for the default-route. Since an NMIP4Config/NMIP6Config instance only has one gateway property, it cannot track more then one default-routes (see related bug rh#1445417). Especially with policy routing, it might be interesting to configure a default-route in multiple tables. Also, later it might be interesting to allow adding default-routes as regular static routes in a connection, so that the user can configure additional route parameters for the default-route or add default-routes in multiple tables. With this patch, default-routes now have a rt_source property according to their origin. Also, the previous commits of this branch broke handling of the default-route :) . That should be working now again.
2017-10-04 15:21:21 +02:00
nm_ip6_config_merge (existing, ndisc_config, NM_IP_CONFIG_MERGE_DEFAULT, 0);
nm_ip6_config_add_dependent_routes (existing,
RT_TABLE_MAIN,
global_opt.priority_v6);
libnm,core: add TABLE attribute for routes settings https://bugzilla.redhat.com/show_bug.cgi?id=1436531
2017-09-13 17:42:41 +02:00
if (!nm_ip6_config_commit (existing,
NM_PLATFORM_GET,
NM_IP_ROUTE_TABLE_SYNC_MODE_MAIN,
NULL))
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGW (LOGD_IP6, "failed to apply IPv6 config");
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
static void
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
ndisc_ra_timeout (NMNDisc *ndisc, gpointer user_data)
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
{
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
if (global_opt.slaac_required) {
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGW (LOGD_IP6, "IPv6 timed out or failed, quitting...");
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
g_main_loop_quit (gl.main_loop);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
} else
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGW (LOGD_IP6, "IPv6 timed out or failed");
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
static gboolean
quit_handler (gpointer user_data)
{
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
g_main_loop_quit (gl.main_loop);
nm-iface-helper: small signal handling fixup nm-iface-helper originally used the same pthread_sigmask()-based signal handling as NetworkManager, but was then switched to using g_unix_signal_add(). But a little bit of unnecessary code remained.
2015-01-12 11:36:26 -05:00
return G_SOURCE_REMOVE;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
static void
nm-iface-helper: small signal handling fixup nm-iface-helper originally used the same pthread_sigmask()-based signal handling as NetworkManager, but was then switched to using g_unix_signal_add(). But a little bit of unnecessary code remained.
2015-01-12 11:36:26 -05:00
setup_signals (void)
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
{
signal (SIGPIPE, SIG_IGN);
nm-iface-helper: small signal handling fixup nm-iface-helper originally used the same pthread_sigmask()-based signal handling as NetworkManager, but was then switched to using g_unix_signal_add(). But a little bit of unnecessary code remained.
2015-01-12 11:36:26 -05:00
g_unix_signal_add (SIGINT, quit_handler, NULL);
g_unix_signal_add (SIGTERM, quit_handler, NULL);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
static gboolean
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
do_early_setup (int *argc, char **argv[])
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
{
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
gint64 priority64_v4 = -1;
gint64 priority64_v6 = -1;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
GOptionEntry options[] = {
/* Interface/IP config */
core: prefer connection.stable-id to generate IPv6 stable privacy addresses The Network_ID for generating RFC 7217 stable privacy IPv6 addresses is by default the UUID of the connection. Alternatively, prefer "connection.stable-id" as Network_ID to generate the stable addresses. This allows to configure a set of connections that all use the same Network_ID for generating stable addresses. Note that the stable-id and the UUID do no overlap, that is two connections [connection] uuid=uuid1 stable-id= and [connection] uuid=uuid2 stable-id=uuid1 generate distinct addresses.
2016-06-21 18:07:56 +02:00
{ "ifname", 'i', 0, G_OPTION_ARG_STRING, &global_opt.ifname, N_("The interface to manage"), "eth0" },
{ "uuid", 'u', 0, G_OPTION_ARG_STRING, &global_opt.uuid, N_("Connection UUID"), "661e8cd0-b618-46b8-9dc9-31a52baaa16b" },
{ "stable-id", '\0', 0, G_OPTION_ARG_STRING, &global_opt.stable_id, N_("Connection Token for Stable IDs"), "eth" },
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
{ "slaac", 's', 0, G_OPTION_ARG_NONE, &global_opt.slaac, N_("Whether to manage IPv6 SLAAC"), NULL },
{ "slaac-required", '6', 0, G_OPTION_ARG_NONE, &global_opt.slaac_required, N_("Whether SLAAC must be successful"), NULL },
{ "slaac-tempaddr", 't', 0, G_OPTION_ARG_INT, &global_opt.tempaddr, N_("Use an IPv6 temporary privacy address"), NULL },
{ "dhcp4", 'd', 0, G_OPTION_ARG_STRING, &global_opt.dhcp4_address, N_("Current DHCPv4 address"), NULL },
{ "dhcp4-required", '4', 0, G_OPTION_ARG_NONE, &global_opt.dhcp4_required, N_("Whether DHCPv4 must be successful"), NULL },
{ "dhcp4-clientid", 'c', 0, G_OPTION_ARG_STRING, &global_opt.dhcp4_clientid, N_("Hex-encoded DHCPv4 client ID"), NULL },
{ "dhcp4-hostname", 'h', 0, G_OPTION_ARG_STRING, &global_opt.dhcp4_hostname, N_("Hostname to send to DHCP server"), N_("barbar") },
dhcp4: send FQDN option when ipv4.dhcp-fqdn is set Modify the 3 DHCP client backends to support the new property.
2015-10-13 15:13:26 +02:00
{ "dhcp4-fqdn", 'F', 0, G_OPTION_ARG_STRING, &global_opt.dhcp4_fqdn, N_("FQDN to send to DHCP server"), N_("host.domain.org") },
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
{ "priority4", '\0', 0, G_OPTION_ARG_INT64, &priority64_v4, N_("Route priority for IPv4"), N_("0") },
{ "priority6", '\0', 0, G_OPTION_ARG_INT64, &priority64_v6, N_("Route priority for IPv6"), N_("1024") },
fix typo and do not translate an empty string https://bugzilla.gnome.org/show_bug.cgi?id=748906
2015-05-04 19:10:29 +03:00
{ "iid", 'e', 0, G_OPTION_ARG_STRING, &global_opt.iid_str, N_("Hex-encoded Interface Identifier"), "" },
core: add support for RFC7217 stable privacy addressing RFC7217 introduces an alternative mechanism for creating addresses during stateless IPv6 address configuration. It's supposed to create addresses whose host part stays stable in a particular network but changes when the hosts enters another network to mitigate possibility of tracking the host movement. It can be used alongside RFC 4941 privacy extensions (temporary addresses) and replaces the use of RFC 4862 interface identifiers. The address creation mode is controlld by ip6.addr_gen_mode property (ADDR_GEN_MODE in ifcfg-rh), with values of "stable-privacy" and "eui-64", defaulting to "eui-64" if unspecified. The host part of an address is computed by hashing a system-specific secret salted with various stable values that identify the connection with a secure hash algorithm: RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) For NetworkManager we use these parameters: * F() SHA256 hash function. * Prefix This is a network part of the /64 address * Net_Iface We use the interface name (e.g. "eth0"). This ensures the address won't change with the change of interface hardware. * Network_ID We use the connection UUID here. This ensures the salt is different for wireless networks with a different SSID as suggested by RFC7217. * DAD_Counter A per-address counter that increases with each DAD failure. * secret_key We store the secret key in /var/lib/NetworkManager/secret_key. If it's shorter than 128 bits then it's rejected. If the file is not present we initialize it by fetching 256 pseudo-random bits from /dev/urandom on first use. Duplicate address detection uses IDGEN_RETRIES = 3 and does not utilize the IDGEN_DELAY delay (despite it SHOULD). This is for ease of implementation and may change in future. Neither parameter is currently configurable.
2015-10-03 19:44:27 +02:00
{ "addr-gen-mode", 'e', 0, G_OPTION_ARG_INT, &global_opt.addr_gen_mode, N_("IPv6 SLAAC address generation mode"), "eui64" },
logging: make use of journal configurable
2015-07-08 19:34:34 +02:00
{ "logging-backend", '\0', 0, G_OPTION_ARG_STRING, &global_opt.logging_backend, N_("The logging backend configuration value. See logging.backend in NetworkManager.conf"), NULL },
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
/* Logging/debugging */
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
{ "version", 'V', 0, G_OPTION_ARG_NONE, &global_opt.show_version, N_("Print NetworkManager version and exit"), NULL },
{ "no-daemon", 'n', G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE, &global_opt.become_daemon, N_("Don't become a daemon"), NULL },
{ "debug", 'b', 0, G_OPTION_ARG_NONE, &global_opt.debug, N_("Don't become a daemon, and log to stderr"), NULL },
{ "log-level", 0, 0, G_OPTION_ARG_STRING, &global_opt.opt_log_level, N_("Log level: one of [%s]"), "INFO" },
{ "log-domains", 0, 0, G_OPTION_ARG_STRING, &global_opt.opt_log_domains,
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
N_("Log domains separated by ',': any combination of [%s]"),
"PLATFORM,RFKILL,WIFI" },
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
{ "g-fatal-warnings", 0, 0, G_OPTION_ARG_NONE, &global_opt.g_fatal_warnings, N_("Make all warnings fatal"), NULL },
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
{NULL}
};
if (!nm_main_utils_early_setup ("nm-iface-helper",
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
argc,
argv,
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
options,
NULL,
config: add nm_config_setup() to initialize config singleton Make nm_config_new() usable without accessing static/singleton data. nm_config_setup() is now used to initialize the singleton. Still, you must not call nm_config_get() before calling nm_config_setup() or after freeing the provided singleton instance.
2014-07-09 15:17:01 +02:00
NULL,
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
_("nm-iface-helper is a small, standalone process that manages a single network interface.")))
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
return FALSE;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
if (priority64_v4 >= 0 && priority64_v4 <= G_MAXUINT32)
global_opt.priority_v4 = (guint32) priority64_v4;
if (priority64_v6 >= 0 && priority64_v6 <= G_MAXUINT32)
global_opt.priority_v6 = (guint32) priority64_v6;
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
return TRUE;
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
}
iface-helper: fix non-reentrant call to platform for failed IPv6 DAD Platform invokes change events while reading netlink events. However, platform code is not re-entrant and calling into platform again is not allowed (aside operations that do not process the netlink socket, like lookup of the platform cache). That basically means, we have to always process events in an idle handler. That is not a too strong limitation, because we anyway don't know the call context in which the platform event is emitted and we should avoid unguarded recursive calls into platform. Otherwise, we get hit an assertion/crash in nm-iface-helper: 1 raise() 2 abort() 3 g_assertion_message() 4 g_assertion_message_expr() 5 do_delete_object() 6 ip6_address_delete() >>> 7 nm_platform_ip6_address_delete() 8 nm_platform_ip6_address_sync() 9 nm_ip6_config_commit() 10 ndisc_config_changed() 11 ffi_call_unix64() 12 ffi_call() 13 g_cclosure_marshal_generic_va() 14 _g_closure_invoke_va() 15 g_signal_emit_valist() 16 g_signal_emit() >>> 17 nm_ndisc_dad_failed() 18 ffi_call_unix64() 19 ffi_call() 20 g_cclosure_marshal_generic() 21 g_closure_invoke() 22 signal_emit_unlocked_R() 23 g_signal_emit_valist() 24 g_signal_emit() >>> 25 nm_platform_cache_update_emit_signal() 26 event_handler_recvmsgs() 27 event_handler_read_netlink() 28 delayed_action_handle_one() 29 delayed_action_handle_all() 30 do_delete_object() 31 ip6_address_delete() 32 nm_platform_ip6_address_delete() 33 nm_platform_ip6_address_sync() >>> 34 nm_ip6_config_commit() 35 ndisc_config_changed() 36 ffi_call_unix64() 37 ffi_call() 38 g_cclosure_marshal_generic_va() 39 _g_closure_invoke_va() 40 g_signal_emit_valist() 41 g_signal_emit() 42 check_timestamps() 43 receive_ra() 44 ndp_call_eventfd_handler() 45 ndp_callall_eventfd_handler() 46 event_ready() 47 g_main_context_dispatch() 48 g_main_context_iterate.isra.22() 49 g_main_loop_run() >>> 50 main() NMPlatform already has a check to assert against recursive calls in delayed_action_handle_all(): g_return_val_if_fail (priv->delayed_action.is_handling == 0, FALSE); priv->delayed_action.is_handling++; ... priv->delayed_action.is_handling--; Fixes: f85728ecff824b1fece43aba51d8171db2766ea2 https://bugzilla.redhat.com/show_bug.cgi?id=1546656
2018-02-19 16:13:06 +01:00
typedef struct {
NMPlatform *platform;
NMNDisc *ndisc;
} DadFailedHandleData;
static gboolean
dad_failed_handle_idle (gpointer user_data)
{
DadFailedHandleData *data = user_data;
NMCListElem *elem;
while ((elem = c_list_first_entry (&gl.dad_failed_lst_head, NMCListElem, lst))) {
nm_auto_nmpobj const NMPObject *obj = elem->data;
nm_c_list_elem_free (elem);
if (nm_ndisc_dad_addr_is_fail_candidate (data->platform, obj)) {
nm_ndisc_dad_failed (data->ndisc,
device: emit IP address changes in queued_ip_config_change() only once We first iterate over addresses that might have failed IPv6 DAD and update the state in NMNDisc. However, while we do that, don't yet invoke the changed signal. Otherwise, we will invoke it multiple times (in case multiple addresses failed). Instead, keep track of whether something changed, and handle it once a bit later. (cherry picked from commit f312620276a3756fbc00362b5330b30a05a18cc6)
2018-06-20 13:06:30 +02:00
&NMP_OBJECT_CAST_IP6_ADDRESS (obj)->address,
TRUE);
iface-helper: fix non-reentrant call to platform for failed IPv6 DAD Platform invokes change events while reading netlink events. However, platform code is not re-entrant and calling into platform again is not allowed (aside operations that do not process the netlink socket, like lookup of the platform cache). That basically means, we have to always process events in an idle handler. That is not a too strong limitation, because we anyway don't know the call context in which the platform event is emitted and we should avoid unguarded recursive calls into platform. Otherwise, we get hit an assertion/crash in nm-iface-helper: 1 raise() 2 abort() 3 g_assertion_message() 4 g_assertion_message_expr() 5 do_delete_object() 6 ip6_address_delete() >>> 7 nm_platform_ip6_address_delete() 8 nm_platform_ip6_address_sync() 9 nm_ip6_config_commit() 10 ndisc_config_changed() 11 ffi_call_unix64() 12 ffi_call() 13 g_cclosure_marshal_generic_va() 14 _g_closure_invoke_va() 15 g_signal_emit_valist() 16 g_signal_emit() >>> 17 nm_ndisc_dad_failed() 18 ffi_call_unix64() 19 ffi_call() 20 g_cclosure_marshal_generic() 21 g_closure_invoke() 22 signal_emit_unlocked_R() 23 g_signal_emit_valist() 24 g_signal_emit() >>> 25 nm_platform_cache_update_emit_signal() 26 event_handler_recvmsgs() 27 event_handler_read_netlink() 28 delayed_action_handle_one() 29 delayed_action_handle_all() 30 do_delete_object() 31 ip6_address_delete() 32 nm_platform_ip6_address_delete() 33 nm_platform_ip6_address_sync() >>> 34 nm_ip6_config_commit() 35 ndisc_config_changed() 36 ffi_call_unix64() 37 ffi_call() 38 g_cclosure_marshal_generic_va() 39 _g_closure_invoke_va() 40 g_signal_emit_valist() 41 g_signal_emit() 42 check_timestamps() 43 receive_ra() 44 ndp_call_eventfd_handler() 45 ndp_callall_eventfd_handler() 46 event_ready() 47 g_main_context_dispatch() 48 g_main_context_iterate.isra.22() 49 g_main_loop_run() >>> 50 main() NMPlatform already has a check to assert against recursive calls in delayed_action_handle_all(): g_return_val_if_fail (priv->delayed_action.is_handling == 0, FALSE); priv->delayed_action.is_handling++; ... priv->delayed_action.is_handling--; Fixes: f85728ecff824b1fece43aba51d8171db2766ea2 https://bugzilla.redhat.com/show_bug.cgi?id=1546656
2018-02-19 16:13:06 +01:00
}
}
gl.dad_failed_id = 0;
return G_SOURCE_REMOVE;
}
core: support IPv6 duplicate address detection NMDevice detects the DAD failures by watching the removal of tentative addresses (happens for DAD of addresses with valid lifetime, typically discovered addresses) or changes to addresses with dadfailed flag (permanent addresses, typically link-local and manually configured addresses). It retries creation of link-local addresses itself and lets RDisc know about the rest so that it can decide if it's rdisc-managed address and retry with a new address. Currently NMDevice doesn't do anything useful about link-local address DAD failures -- it just fails the link-local address addition instead of just timing out, which happened before. RDisc just logs a warning and removes the address from the list. However, with RFC7217 stable privacy addresses the use of a different address and thus a recovery from DAD failures would be possible.
2015-10-03 19:50:30 +02:00
static void
ip6_address_changed (NMPlatform *platform,
core: don't use generated glib enum for platform types
2016-10-22 13:08:36 +02:00
int obj_type_i,
core: support IPv6 duplicate address detection NMDevice detects the DAD failures by watching the removal of tentative addresses (happens for DAD of addresses with valid lifetime, typically discovered addresses) or changes to addresses with dadfailed flag (permanent addresses, typically link-local and manually configured addresses). It retries creation of link-local addresses itself and lets RDisc know about the rest so that it can decide if it's rdisc-managed address and retry with a new address. Currently NMDevice doesn't do anything useful about link-local address DAD failures -- it just fails the link-local address addition instead of just timing out, which happened before. RDisc just logs a warning and removes the address from the list. However, with RFC7217 stable privacy addresses the use of a different address and thus a recovery from DAD failures would be possible.
2015-10-03 19:50:30 +02:00
int iface,
iface-helper: fix non-reentrant call to platform for failed IPv6 DAD Platform invokes change events while reading netlink events. However, platform code is not re-entrant and calling into platform again is not allowed (aside operations that do not process the netlink socket, like lookup of the platform cache). That basically means, we have to always process events in an idle handler. That is not a too strong limitation, because we anyway don't know the call context in which the platform event is emitted and we should avoid unguarded recursive calls into platform. Otherwise, we get hit an assertion/crash in nm-iface-helper: 1 raise() 2 abort() 3 g_assertion_message() 4 g_assertion_message_expr() 5 do_delete_object() 6 ip6_address_delete() >>> 7 nm_platform_ip6_address_delete() 8 nm_platform_ip6_address_sync() 9 nm_ip6_config_commit() 10 ndisc_config_changed() 11 ffi_call_unix64() 12 ffi_call() 13 g_cclosure_marshal_generic_va() 14 _g_closure_invoke_va() 15 g_signal_emit_valist() 16 g_signal_emit() >>> 17 nm_ndisc_dad_failed() 18 ffi_call_unix64() 19 ffi_call() 20 g_cclosure_marshal_generic() 21 g_closure_invoke() 22 signal_emit_unlocked_R() 23 g_signal_emit_valist() 24 g_signal_emit() >>> 25 nm_platform_cache_update_emit_signal() 26 event_handler_recvmsgs() 27 event_handler_read_netlink() 28 delayed_action_handle_one() 29 delayed_action_handle_all() 30 do_delete_object() 31 ip6_address_delete() 32 nm_platform_ip6_address_delete() 33 nm_platform_ip6_address_sync() >>> 34 nm_ip6_config_commit() 35 ndisc_config_changed() 36 ffi_call_unix64() 37 ffi_call() 38 g_cclosure_marshal_generic_va() 39 _g_closure_invoke_va() 40 g_signal_emit_valist() 41 g_signal_emit() 42 check_timestamps() 43 receive_ra() 44 ndp_call_eventfd_handler() 45 ndp_callall_eventfd_handler() 46 event_ready() 47 g_main_context_dispatch() 48 g_main_context_iterate.isra.22() 49 g_main_loop_run() >>> 50 main() NMPlatform already has a check to assert against recursive calls in delayed_action_handle_all(): g_return_val_if_fail (priv->delayed_action.is_handling == 0, FALSE); priv->delayed_action.is_handling++; ... priv->delayed_action.is_handling--; Fixes: f85728ecff824b1fece43aba51d8171db2766ea2 https://bugzilla.redhat.com/show_bug.cgi?id=1546656
2018-02-19 16:13:06 +01:00
const NMPlatformIP6Address *addr,
core: don't use generated glib enum for platform types
2016-10-22 13:08:36 +02:00
int change_type_i,
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
NMNDisc *ndisc)
core: support IPv6 duplicate address detection NMDevice detects the DAD failures by watching the removal of tentative addresses (happens for DAD of addresses with valid lifetime, typically discovered addresses) or changes to addresses with dadfailed flag (permanent addresses, typically link-local and manually configured addresses). It retries creation of link-local addresses itself and lets RDisc know about the rest so that it can decide if it's rdisc-managed address and retry with a new address. Currently NMDevice doesn't do anything useful about link-local address DAD failures -- it just fails the link-local address addition instead of just timing out, which happened before. RDisc just logs a warning and removes the address from the list. However, with RFC7217 stable privacy addresses the use of a different address and thus a recovery from DAD failures would be possible.
2015-10-03 19:50:30 +02:00
{
core: don't use generated glib enum for platform types
2016-10-22 13:08:36 +02:00
const NMPlatformSignalChangeType change_type = change_type_i;
iface-helper: fix non-reentrant call to platform for failed IPv6 DAD Platform invokes change events while reading netlink events. However, platform code is not re-entrant and calling into platform again is not allowed (aside operations that do not process the netlink socket, like lookup of the platform cache). That basically means, we have to always process events in an idle handler. That is not a too strong limitation, because we anyway don't know the call context in which the platform event is emitted and we should avoid unguarded recursive calls into platform. Otherwise, we get hit an assertion/crash in nm-iface-helper: 1 raise() 2 abort() 3 g_assertion_message() 4 g_assertion_message_expr() 5 do_delete_object() 6 ip6_address_delete() >>> 7 nm_platform_ip6_address_delete() 8 nm_platform_ip6_address_sync() 9 nm_ip6_config_commit() 10 ndisc_config_changed() 11 ffi_call_unix64() 12 ffi_call() 13 g_cclosure_marshal_generic_va() 14 _g_closure_invoke_va() 15 g_signal_emit_valist() 16 g_signal_emit() >>> 17 nm_ndisc_dad_failed() 18 ffi_call_unix64() 19 ffi_call() 20 g_cclosure_marshal_generic() 21 g_closure_invoke() 22 signal_emit_unlocked_R() 23 g_signal_emit_valist() 24 g_signal_emit() >>> 25 nm_platform_cache_update_emit_signal() 26 event_handler_recvmsgs() 27 event_handler_read_netlink() 28 delayed_action_handle_one() 29 delayed_action_handle_all() 30 do_delete_object() 31 ip6_address_delete() 32 nm_platform_ip6_address_delete() 33 nm_platform_ip6_address_sync() >>> 34 nm_ip6_config_commit() 35 ndisc_config_changed() 36 ffi_call_unix64() 37 ffi_call() 38 g_cclosure_marshal_generic_va() 39 _g_closure_invoke_va() 40 g_signal_emit_valist() 41 g_signal_emit() 42 check_timestamps() 43 receive_ra() 44 ndp_call_eventfd_handler() 45 ndp_callall_eventfd_handler() 46 event_ready() 47 g_main_context_dispatch() 48 g_main_context_iterate.isra.22() 49 g_main_loop_run() >>> 50 main() NMPlatform already has a check to assert against recursive calls in delayed_action_handle_all(): g_return_val_if_fail (priv->delayed_action.is_handling == 0, FALSE); priv->delayed_action.is_handling++; ... priv->delayed_action.is_handling--; Fixes: f85728ecff824b1fece43aba51d8171db2766ea2 https://bugzilla.redhat.com/show_bug.cgi?id=1546656
2018-02-19 16:13:06 +01:00
DadFailedHandleData *data;
if (!nm_ndisc_dad_addr_is_fail_candidate_event (change_type, addr))
return;
c_list_link_tail (&gl.dad_failed_lst_head,
&nm_c_list_elem_new_stale ((gpointer) nmp_object_ref (NMP_OBJECT_UP_CAST (addr)))->lst);
if (gl.dad_failed_id)
return;
data = g_slice_new (DadFailedHandleData);
data->platform = platform;
data->ndisc = ndisc;
gl.dad_failed_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
dad_failed_handle_idle,
data,
nm_g_slice_free_fcn (DadFailedHandleData));
core: support IPv6 duplicate address detection NMDevice detects the DAD failures by watching the removal of tentative addresses (happens for DAD of addresses with valid lifetime, typically discovered addresses) or changes to addresses with dadfailed flag (permanent addresses, typically link-local and manually configured addresses). It retries creation of link-local addresses itself and lets RDisc know about the rest so that it can decide if it's rdisc-managed address and retry with a new address. Currently NMDevice doesn't do anything useful about link-local address DAD failures -- it just fails the link-local address addition instead of just timing out, which happened before. RDisc just logs a warning and removes the address from the list. However, with RFC7217 stable privacy addresses the use of a different address and thus a recovery from DAD failures would be possible.
2015-10-03 19:50:30 +02:00
}
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
int
main (int argc, char *argv[])
{
char *bad_domains = NULL;
GError *error = NULL;
gboolean wrote_pidfile = FALSE;
gs_free char *pidfile = NULL;
gs_unref_object NMDhcpClient *dhcp4_client = NULL;
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
gs_unref_object NMNDisc *ndisc = NULL;
dhcp: refactor type of NMDhcpClient hwaddr to be GBytes GByteArray is a mutable array of bytes. For every practical purpose, the hwaddr property of NMDhcpClient is an immutable sequence of bytes. Thus, make it a GBytes.
2018-02-14 13:09:23 +01:00
gs_unref_bytes GBytes *hwaddr = NULL;
dhcp: inject client-id in GBytes format from NMDevice to nm_dhcp_manager_start_ip4() Convert the string representation of ipv4.dhcp-client-id property already in NMDevice to a GBytes. Next, we will support more client ID modes, and we will need the NMDevice context to generate the client id.
2018-02-14 15:26:40 +01:00
gs_unref_bytes GBytes *client_id = NULL;
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
gs_free NMUtilsIPv6IfaceId *iid = NULL;
systemd: integrate sd-event into glib main loop We should not try to reimplement sd-event based on glib, instead we should hook sd-event into the glib mainloop.
2016-03-09 12:27:56 +01:00
guint sd_id;
core: merge IPv4 and IPv6 implementation of nm_utils_ip4_property_path() and nm_utils_ip6_property_path(). Also, rename to nm_utils_sysctl_ip_conf_path().
2017-10-23 13:55:54 +02:00
char sysctl_path_buf[NM_UTILS_SYSCTL_IP_CONF_PATH_BUFSIZE];
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
iface-helper: fix non-reentrant call to platform for failed IPv6 DAD Platform invokes change events while reading netlink events. However, platform code is not re-entrant and calling into platform again is not allowed (aside operations that do not process the netlink socket, like lookup of the platform cache). That basically means, we have to always process events in an idle handler. That is not a too strong limitation, because we anyway don't know the call context in which the platform event is emitted and we should avoid unguarded recursive calls into platform. Otherwise, we get hit an assertion/crash in nm-iface-helper: 1 raise() 2 abort() 3 g_assertion_message() 4 g_assertion_message_expr() 5 do_delete_object() 6 ip6_address_delete() >>> 7 nm_platform_ip6_address_delete() 8 nm_platform_ip6_address_sync() 9 nm_ip6_config_commit() 10 ndisc_config_changed() 11 ffi_call_unix64() 12 ffi_call() 13 g_cclosure_marshal_generic_va() 14 _g_closure_invoke_va() 15 g_signal_emit_valist() 16 g_signal_emit() >>> 17 nm_ndisc_dad_failed() 18 ffi_call_unix64() 19 ffi_call() 20 g_cclosure_marshal_generic() 21 g_closure_invoke() 22 signal_emit_unlocked_R() 23 g_signal_emit_valist() 24 g_signal_emit() >>> 25 nm_platform_cache_update_emit_signal() 26 event_handler_recvmsgs() 27 event_handler_read_netlink() 28 delayed_action_handle_one() 29 delayed_action_handle_all() 30 do_delete_object() 31 ip6_address_delete() 32 nm_platform_ip6_address_delete() 33 nm_platform_ip6_address_sync() >>> 34 nm_ip6_config_commit() 35 ndisc_config_changed() 36 ffi_call_unix64() 37 ffi_call() 38 g_cclosure_marshal_generic_va() 39 _g_closure_invoke_va() 40 g_signal_emit_valist() 41 g_signal_emit() 42 check_timestamps() 43 receive_ra() 44 ndp_call_eventfd_handler() 45 ndp_callall_eventfd_handler() 46 event_ready() 47 g_main_context_dispatch() 48 g_main_context_iterate.isra.22() 49 g_main_loop_run() >>> 50 main() NMPlatform already has a check to assert against recursive calls in delayed_action_handle_all(): g_return_val_if_fail (priv->delayed_action.is_handling == 0, FALSE); priv->delayed_action.is_handling++; ... priv->delayed_action.is_handling--; Fixes: f85728ecff824b1fece43aba51d8171db2766ea2 https://bugzilla.redhat.com/show_bug.cgi?id=1546656
2018-02-19 16:13:06 +01:00
c_list_init (&gl.dad_failed_lst_head);
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
setpgid (getpid (), getpid ());
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
if (!do_early_setup (&argc, &argv))
return 1;
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
iface-helper: use different syslog-identfier for nm-iface-helper
2016-10-05 17:10:42 +02:00
nm_logging_set_syslog_identifier ("nm-iface-helper");
iface-helper: set logging prefix
2016-10-05 15:34:06 +02:00
nm_logging_set_prefix ("%s[%ld] (%s): ",
_NMLOG_PREFIX_NAME,
(long) getpid (),
global_opt.ifname ?: "???");
main: (order) set g_log_set_always_fatal() early on After parsing the cmd line options, we already can setup fatal glog level.
2015-03-13 23:24:05 +01:00
if (global_opt.g_fatal_warnings) {
GLogLevelFlags fatal_mask;
fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
g_log_set_always_fatal (fatal_mask);
}
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
if (global_opt.show_version) {
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
fprintf (stdout, NM_DIST_VERSION "\n");
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
return 0;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
main: (order) move root user check after help/version option With this change, `NetworkManager --help` and `NetworkManager --version` work for non-root user.
2015-03-13 20:57:18 +01:00
nm_main_utils_ensure_root ();
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
if (!global_opt.ifname || !global_opt.uuid) {
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
fprintf (stderr, _("An interface name and UUID are required\n"));
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
return 1;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
platform: use wrappers for if_nametoindex() and if_indextoname()
2016-12-26 12:00:08 +01:00
gl.ifindex = nmp_utils_if_nametoindex (global_opt.ifname);
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
if (gl.ifindex <= 0) {
main: (order) check pidfile earlier for running NM We should check for conflicting process (pidfile) early on and error out.
2015-03-14 17:58:23 +01:00
fprintf (stderr, _("Failed to find interface index for %s (%s)\n"), global_opt.ifname, strerror (errno));
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
return 1;
main: (order) check pidfile earlier for running NM We should check for conflicting process (pidfile) early on and error out.
2015-03-14 17:58:23 +01:00
}
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
pidfile = g_strdup_printf (NMIH_PID_FILE_FMT, gl.ifindex);
main: (order) check pidfile earlier for running NM We should check for conflicting process (pidfile) early on and error out.
2015-03-14 17:58:23 +01:00
nm_main_utils_ensure_not_running_pidfile (pidfile);
main: (order) earlier create rundir Create the rundir earlier and before setting up nm-logging. nm_main_utils_ensure_rundir() errors out with fprintf(stderr) and does not need nm-logging.
2015-03-15 15:59:02 +01:00
nm_main_utils_ensure_rundir ();
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
if (!nm_logging_setup (global_opt.opt_log_level,
global_opt.opt_log_domains,
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
&bad_domains,
&error)) {
fprintf (stderr,
_("%s. Please use --help to see a list of valid options.\n"),
error->message);
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
return 1;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
} else if (bad_domains) {
fprintf (stderr,
_("Ignoring unrecognized log domain(s) '%s' passed on command line.\n"),
bad_domains);
g_clear_pointer (&bad_domains, g_free);
}
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
if (global_opt.become_daemon && !global_opt.debug) {
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
if (daemon (0, 0) < 0) {
int saved_errno;
saved_errno = errno;
fprintf (stderr, _("Could not daemonize: %s [error %u]\n"),
g_strerror (saved_errno),
saved_errno);
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
return 1;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
if (nm_main_utils_write_pidfile (pidfile))
wrote_pidfile = TRUE;
}
/* Set up unix signal handling - before creating threads, but after daemonizing! */
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
gl.main_loop = g_main_loop_new (NULL, FALSE);
nm-iface-helper: small signal handling fixup nm-iface-helper originally used the same pthread_sigmask()-based signal handling as NetworkManager, but was then switched to using g_unix_signal_add(). But a little bit of unnecessary code remained.
2015-01-12 11:36:26 -05:00
setup_signals ();
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
logging: respect choice of journal/syslog even with --debug Previously, the daemon would just use syslog with LOG_PERROR when run with --debug option, even when actually configured to log into the journal. Let's respect the configuration, but preserve the logging to stderr.
2017-03-01 13:34:32 +01:00
nm_logging_syslog_openlog (global_opt.logging_backend,
global_opt.debug);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGI (LOGD_CORE, "nm-iface-helper (version " NM_DIST_VERSION ") is starting...");
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
/* Set up platform interaction layer */
nm_linux_platform_setup ();
dhcp: refactor type of NMDhcpClient hwaddr to be GBytes GByteArray is a mutable array of bytes. For every practical purpose, the hwaddr property of NMDhcpClient is an immutable sequence of bytes. Thus, make it a GBytes.
2018-02-14 13:09:23 +01:00
hwaddr = nm_platform_link_get_address_as_bytes (NM_PLATFORM_GET, gl.ifindex);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
if (global_opt.iid_str) {
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
GBytes *bytes;
gsize ignored = 0;
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
bytes = nm_utils_hexstr2bin (global_opt.iid_str);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
if (!bytes || g_bytes_get_size (bytes) != sizeof (*iid)) {
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
fprintf (stderr, _("(%s): Invalid IID %s\n"), global_opt.ifname, global_opt.iid_str);
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
return 1;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
iid = g_bytes_unref_to_data (bytes, &ignored);
}
dhcp: inject client-id in GBytes format from NMDevice to nm_dhcp_manager_start_ip4() Convert the string representation of ipv4.dhcp-client-id property already in NMDevice to a GBytes. Next, we will support more client ID modes, and we will need the NMDevice context to generate the client id.
2018-02-14 15:26:40 +01:00
if (global_opt.dhcp4_clientid) {
/* this string is just a plain hex-string. Unlike ipv4.dhcp-client-id, which
* is parsed via nm_dhcp_utils_client_id_string_to_bytes(). */
client_id = nm_utils_hexstr2bin (global_opt.dhcp4_clientid);
if (!client_id || g_bytes_get_size (client_id) < 2) {
fprintf (stderr, _("(%s): Invalid DHCP client-id %s\n"), global_opt.ifname, global_opt.dhcp4_clientid);
return 1;
}
}
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
if (global_opt.dhcp4_address) {
core: merge IPv4 and IPv6 implementation of nm_utils_ip4_property_path() and nm_utils_ip6_property_path(). Also, rename to nm_utils_sysctl_ip_conf_path().
2017-10-23 13:55:54 +02:00
nm_platform_sysctl_set (NM_PLATFORM_GET, NMP_SYSCTL_PATHID_ABSOLUTE (nm_utils_sysctl_ip_conf_path (AF_INET, sysctl_path_buf, global_opt.ifname, "promote_secondaries")), "1");
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
core: declare nm_dhcp_manager_get() using NM_DEFINE_SINGLETON_GETTER()
2015-01-05 19:30:00 +01:00
dhcp4_client = nm_dhcp_manager_start_ip4 (nm_dhcp_manager_get (),
core: pass NMDedupMultiIndex instance to NMIP4Config and other NMIP4Config, NMIP6Config, and NMPlatform shall share one NMDedupMultiIndex instance. For that, pass an NMDedupMultiIndex instance to NMPlatform and NMNetns. NMNetns than passes it on to NMDevice, NMDhcpClient, NMIP4Config and NMIP6Config. So currently NMNetns is the access point to the shared NMDedupMultiIndex instance, and it gets it from it's NMPlatform instance. The NMDedupMultiIndex instance is really a singleton, we don't want multiple instances of it. However, for testing, instead of adding a singleton instance, pass the instance explicitly around.
2017-06-12 08:16:47 +02:00
nm_platform_get_multi_idx (NM_PLATFORM_GET),
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
global_opt.ifname,
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
gl.ifindex,
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
hwaddr,
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
global_opt.uuid,
core: use ipv4.route-table setting for other IPv4 routes Including device-routes, default-route, DHCPv4, IPv4LL.
2017-09-28 14:40:12 +02:00
RT_TABLE_MAIN,
main: refactor early setup in main() Move call to nm_main_utils_early_setup() to a separate function. Also move the @options array away from the main function, saving a few bytes on the stack. Now only do_early_setup() modifies the @global_opt structure.
2015-03-13 20:09:46 +01:00
global_opt.priority_v4,
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
!!global_opt.dhcp4_hostname,
global_opt.dhcp4_hostname,
dhcp4: send FQDN option when ipv4.dhcp-fqdn is set Modify the 3 DHCP client backends to support the new property.
2015-10-13 15:13:26 +02:00
global_opt.dhcp4_fqdn,
dhcp: inject client-id in GBytes format from NMDevice to nm_dhcp_manager_start_ip4() Convert the string representation of ipv4.dhcp-client-id property already in NMDevice to a GBytes. Next, we will support more client ID modes, and we will need the NMDevice context to generate the client id.
2018-02-14 15:26:40 +01:00
client_id,
device: enable support for ipv6.dhcp-timeout - cleanup data type and use guint32 consistently. We might want to introduce a new "infinity" value. But since libnm's NM_SETTING_IP_CONFIG_DHCP_TIMEOUT asserts against the range 0 - G_MAXINT32, we cannot express it as -1 anyway. So, infinity will have the numerical value G_MAXINT32, hence guint32 is just fine. - make use of existing ipv6.dhcp-timeout setting and add global default configuration in NetworkManager.conf - instead of having subclasses call nm_device_set_dhcp_timeout(), add a virtual function get_dhcp_timeout().
2017-09-11 10:43:48 +02:00
NM_DHCP_TIMEOUT_DEFAULT,
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
NULL,
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
global_opt.dhcp4_address);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
g_assert (dhcp4_client);
g_signal_connect (dhcp4_client,
NM_DHCP_CLIENT_SIGNAL_STATE_CHANGED,
G_CALLBACK (dhcp4_state_changed),
NULL);
}
main: move option variables to static variable Move the variables to a static struct so that we can factor out some of the initialization code. Also it's nice to have all options placed together in one struct so that is is obvious which static variables are part of the command line options, and which have other use.
2015-03-13 19:59:32 +01:00
if (global_opt.slaac) {
core: prefer connection.stable-id to generate IPv6 stable privacy addresses The Network_ID for generating RFC 7217 stable privacy IPv6 addresses is by default the UUID of the connection. Alternatively, prefer "connection.stable-id" as Network_ID to generate the stable addresses. This allows to configure a set of connections that all use the same Network_ID for generating stable addresses. Note that the stable-id and the UUID do no overlap, that is two connections [connection] uuid=uuid1 stable-id= and [connection] uuid=uuid2 stable-id=uuid1 generate distinct addresses.
2016-06-21 18:07:56 +02:00
NMUtilsStableType stable_type = NM_UTILS_STABLE_TYPE_UUID;
const char *stable_id = global_opt.uuid;
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
nm_platform_link_set_user_ipv6ll_enabled (NM_PLATFORM_GET, gl.ifindex, TRUE);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
core: prefer connection.stable-id to generate IPv6 stable privacy addresses The Network_ID for generating RFC 7217 stable privacy IPv6 addresses is by default the UUID of the connection. Alternatively, prefer "connection.stable-id" as Network_ID to generate the stable addresses. This allows to configure a set of connections that all use the same Network_ID for generating stable addresses. Note that the stable-id and the UUID do no overlap, that is two connections [connection] uuid=uuid1 stable-id= and [connection] uuid=uuid2 stable-id=uuid1 generate distinct addresses.
2016-06-21 18:07:56 +02:00
if ( global_opt.stable_id
&& (global_opt.stable_id[0] >= '0' && global_opt.stable_id[0] <= '9')
&& global_opt.stable_id[1] == ' ') {
/* strict parsing of --stable-id, which is the numeric stable-type
* and the ID, joined with one space. For now, only support stable-types
* from 0 to 9. */
stable_type = (global_opt.stable_id[0] - '0');
stable_id = &global_opt.stable_id[2];
}
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
ndisc = nm_lndp_ndisc_new (NM_PLATFORM_GET, gl.ifindex, global_opt.ifname,
core: prefer connection.stable-id to generate IPv6 stable privacy addresses The Network_ID for generating RFC 7217 stable privacy IPv6 addresses is by default the UUID of the connection. Alternatively, prefer "connection.stable-id" as Network_ID to generate the stable addresses. This allows to configure a set of connections that all use the same Network_ID for generating stable addresses. Note that the stable-id and the UUID do no overlap, that is two connections [connection] uuid=uuid1 stable-id= and [connection] uuid=uuid2 stable-id=uuid1 generate distinct addresses.
2016-06-21 18:07:56 +02:00
stable_type, stable_id,
ndisc/lndp: add ability to announce the managed IPv6 configuration Announce the prefixes and DNS configuration.
2016-10-14 20:13:32 +02:00
global_opt.addr_gen_mode,
NM_NDISC_NODE_TYPE_HOST,
NULL);
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
g_assert (ndisc);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
if (iid)
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
nm_ndisc_set_iid (ndisc, *iid);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
core: merge IPv4 and IPv6 implementation of nm_utils_ip4_property_path() and nm_utils_ip6_property_path(). Also, rename to nm_utils_sysctl_ip_conf_path().
2017-10-23 13:55:54 +02:00
nm_platform_sysctl_set (NM_PLATFORM_GET, NMP_SYSCTL_PATHID_ABSOLUTE (nm_utils_sysctl_ip_conf_path (AF_INET6, sysctl_path_buf, global_opt.ifname, "accept_ra")), "1");
nm_platform_sysctl_set (NM_PLATFORM_GET, NMP_SYSCTL_PATHID_ABSOLUTE (nm_utils_sysctl_ip_conf_path (AF_INET6, sysctl_path_buf, global_opt.ifname, "accept_ra_defrtr")), "0");
nm_platform_sysctl_set (NM_PLATFORM_GET, NMP_SYSCTL_PATHID_ABSOLUTE (nm_utils_sysctl_ip_conf_path (AF_INET6, sysctl_path_buf, global_opt.ifname, "accept_ra_pinfo")), "0");
nm_platform_sysctl_set (NM_PLATFORM_GET, NMP_SYSCTL_PATHID_ABSOLUTE (nm_utils_sysctl_ip_conf_path (AF_INET6, sysctl_path_buf, global_opt.ifname, "accept_ra_rtr_pref")), "0");
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
core: support IPv6 duplicate address detection NMDevice detects the DAD failures by watching the removal of tentative addresses (happens for DAD of addresses with valid lifetime, typically discovered addresses) or changes to addresses with dadfailed flag (permanent addresses, typically link-local and manually configured addresses). It retries creation of link-local addresses itself and lets RDisc know about the rest so that it can decide if it's rdisc-managed address and retry with a new address. Currently NMDevice doesn't do anything useful about link-local address DAD failures -- it just fails the link-local address addition instead of just timing out, which happened before. RDisc just logs a warning and removes the address from the list. However, with RFC7217 stable privacy addresses the use of a different address and thus a recovery from DAD failures would be possible.
2015-10-03 19:50:30 +02:00
g_signal_connect (NM_PLATFORM_GET,
NM_PLATFORM_SIGNAL_IP6_ADDRESS_CHANGED,
G_CALLBACK (ip6_address_changed),
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
ndisc);
g_signal_connect (ndisc,
ndisc: rename the config-changed signal The ndisc config can now be changed by NMDevice as well when the NDisc is in ROUTER mode. But what we're really interested in is when we receive a new one from the outside.
2016-11-09 17:21:41 +01:00
NM_NDISC_CONFIG_RECEIVED,
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
G_CALLBACK (ndisc_config_changed),
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
NULL);
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
g_signal_connect (ndisc,
NM_NDISC_RA_TIMEOUT,
G_CALLBACK (ndisc_ra_timeout),
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
NULL);
rdisc: rename to ndisc We'll soon not only do the router discovery, but announce ourselves as a reouter. "Neighbor discovery" sounds to be a more appropriate name for the class than "Router discovery".
2016-10-13 11:06:25 +00:00
nm_ndisc_start (ndisc);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
systemd: integrate sd-event into glib main loop We should not try to reimplement sd-event based on glib, instead we should hook sd-event into the glib mainloop.
2016-03-09 12:27:56 +01:00
sd_id = nm_sd_event_attach_default ();
iface-helper: namespace global variables
2016-10-05 12:04:24 +02:00
g_main_loop_run (gl.main_loop);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
iface-helper: fix non-reentrant call to platform for failed IPv6 DAD Platform invokes change events while reading netlink events. However, platform code is not re-entrant and calling into platform again is not allowed (aside operations that do not process the netlink socket, like lookup of the platform cache). That basically means, we have to always process events in an idle handler. That is not a too strong limitation, because we anyway don't know the call context in which the platform event is emitted and we should avoid unguarded recursive calls into platform. Otherwise, we get hit an assertion/crash in nm-iface-helper: 1 raise() 2 abort() 3 g_assertion_message() 4 g_assertion_message_expr() 5 do_delete_object() 6 ip6_address_delete() >>> 7 nm_platform_ip6_address_delete() 8 nm_platform_ip6_address_sync() 9 nm_ip6_config_commit() 10 ndisc_config_changed() 11 ffi_call_unix64() 12 ffi_call() 13 g_cclosure_marshal_generic_va() 14 _g_closure_invoke_va() 15 g_signal_emit_valist() 16 g_signal_emit() >>> 17 nm_ndisc_dad_failed() 18 ffi_call_unix64() 19 ffi_call() 20 g_cclosure_marshal_generic() 21 g_closure_invoke() 22 signal_emit_unlocked_R() 23 g_signal_emit_valist() 24 g_signal_emit() >>> 25 nm_platform_cache_update_emit_signal() 26 event_handler_recvmsgs() 27 event_handler_read_netlink() 28 delayed_action_handle_one() 29 delayed_action_handle_all() 30 do_delete_object() 31 ip6_address_delete() 32 nm_platform_ip6_address_delete() 33 nm_platform_ip6_address_sync() >>> 34 nm_ip6_config_commit() 35 ndisc_config_changed() 36 ffi_call_unix64() 37 ffi_call() 38 g_cclosure_marshal_generic_va() 39 _g_closure_invoke_va() 40 g_signal_emit_valist() 41 g_signal_emit() 42 check_timestamps() 43 receive_ra() 44 ndp_call_eventfd_handler() 45 ndp_callall_eventfd_handler() 46 event_ready() 47 g_main_context_dispatch() 48 g_main_context_iterate.isra.22() 49 g_main_loop_run() >>> 50 main() NMPlatform already has a check to assert against recursive calls in delayed_action_handle_all(): g_return_val_if_fail (priv->delayed_action.is_handling == 0, FALSE); priv->delayed_action.is_handling++; ... priv->delayed_action.is_handling--; Fixes: f85728ecff824b1fece43aba51d8171db2766ea2 https://bugzilla.redhat.com/show_bug.cgi?id=1546656
2018-02-19 16:13:06 +01:00
nm_clear_g_source (&gl.dad_failed_id);
nm_c_list_elem_free_all (&gl.dad_failed_lst_head, (GDestroyNotify) nmp_object_unref);
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
if (pidfile && wrote_pidfile)
unlink (pidfile);
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGI (LOGD_CORE, "exiting");
systemd: integrate sd-event into glib main loop We should not try to reimplement sd-event based on glib, instead we should hook sd-event into the glib mainloop.
2016-03-09 12:27:56 +01:00
nm_clear_g_source (&sd_id);
iface-helper: free main_loop instance at end of main()
2016-10-05 15:10:34 +02:00
g_clear_pointer (&gl.main_loop, g_main_loop_unref);
iface-helper: return from main() instead of calling exit()
2016-10-05 15:07:46 +02:00
return 0;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
build: buld nm-dhcp-manager.c as part of libNetworkMangerBase NetworkManager and nm-iface-helper compiled nm-dhcp-manager.c twice, the latter with setting -DNM_DHCP_INTERNAL_ONLY to only enable the internal plugin. Change that to compile nm-dhcp-manager.c once for both users by putting it into libNetworkManagerBase.
2016-10-22 16:23:40 +02:00
/*****************************************************************************/
dhcp: add support for dhcpcanon client https://github.com/NetworkManager/NetworkManager/pull/31
2017-10-05 14:44:08 +00:00
const NMDhcpClientFactory *const _nm_dhcp_manager_factories[4] = {
build: buld nm-dhcp-manager.c as part of libNetworkMangerBase NetworkManager and nm-iface-helper compiled nm-dhcp-manager.c twice, the latter with setting -DNM_DHCP_INTERNAL_ONLY to only enable the internal plugin. Change that to compile nm-dhcp-manager.c once for both users by putting it into libNetworkManagerBase.
2016-10-22 16:23:40 +02:00
&_nm_dhcp_client_factory_internal,
};
all: modify line separator comments to be 80 chars wide sed 's#^/\*\{5\}\*\+/$#/*****************************************************************************/#' $(git grep -l '\*\{5\}' | grep '\.[hc]$') -i
2016-10-02 18:22:50 +02:00
/*****************************************************************************/
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
/* Stub functions */
config: drop nm_config_get_dhcp_client() and access config directly Also, ifnet plugin would read the configuration value, which is just wrong because: - the configuration might not be set and ifnet would fail to fallback to the compile time default. - the configuration only is in effect if the plugin is also available. Otherwise, we fallback to the next plugin. Only the dhcp-manager knows which DHCP plugin is in use.
2016-11-25 15:07:19 +01:00
#include "nm-config.h"
#include "devices/nm-device.h"
#include "nm-active-connection.h"
core: rename "nm-bus-manager.h" to "nm-dbus-manager.h" The next commit will completely rework NMBusManager and replace NMExportedObject by a new type NMDBusObject. Originally, NMDBusObject was added along NMExportedObject to ease the rework and have compilable, intermediate stages of refactoring. Now, I think the new name is better, because NMDBusObject is very strongly related to the bus manager and the old name NMExportedObject didn't make that clear. I also slighly prefer the name NMDBusObject over NMBusObject, hence for consistancy, also rename NMBusManager to NMDBusManager. This commit only renames the file for a nicer diff in the next commit. It does not actually update the type name in sources. That will be done later.
2018-03-02 05:55:21 +01:00
#include "nm-dbus-manager.h"
config: drop nm_config_get_dhcp_client() and access config directly Also, ifnet plugin would read the configuration value, which is just wrong because: - the configuration might not be set and ifnet would fail to fallback to the compile time default. - the configuration only is in effect if the plugin is also available. Otherwise, we fallback to the next plugin. Only the dhcp-manager knows which DHCP plugin is in use.
2016-11-25 15:07:19 +01:00
config: add handler for SIGHUP and a reload-configuration stub
2014-07-09 18:36:20 +02:00
void
config: pass signals to nm_config_reload() Also react on SIGUSR1 and SIGUSR2, beside SIGHUP. Only for SIGHUP actually reload the configuration from disc. For the other signals only emit a config-changed signal.
2015-06-25 21:10:32 +02:00
nm_main_config_reload (int signal)
config: add handler for SIGHUP and a reload-configuration stub
2014-07-09 18:36:20 +02:00
{
iface-helper: use logging macros
2016-10-05 12:04:46 +02:00
_LOGI (LOGD_CORE, "reloading configuration not supported");
config: add handler for SIGHUP and a reload-configuration stub
2014-07-09 18:36:20 +02:00
}
config: drop nm_config_get_dhcp_client() and access config directly Also, ifnet plugin would read the configuration value, which is just wrong because: - the configuration might not be set and ifnet would fail to fallback to the compile time default. - the configuration only is in effect if the plugin is also available. Otherwise, we fallback to the next plugin. Only the dhcp-manager knows which DHCP plugin is in use.
2016-11-25 15:07:19 +01:00
NMConfig *
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
nm_config_get (void)
{
return GUINT_TO_POINTER (1);
}
config: drop nm_config_get_dhcp_client() and access config directly Also, ifnet plugin would read the configuration value, which is just wrong because: - the configuration might not be set and ifnet would fail to fallback to the compile time default. - the configuration only is in effect if the plugin is also available. Otherwise, we fallback to the next plugin. Only the dhcp-manager knows which DHCP plugin is in use.
2016-11-25 15:07:19 +01:00
NMConfigData *
nm_config_get_data_orig (NMConfig *config)
{
return GUINT_TO_POINTER (1);
}
char *
nm_config_data_get_value (const NMConfigData *config_data, const char *group, const char *key, NMConfigGetValueFlags flags)
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
{
config: drop nm_config_get_dhcp_client() and access config directly Also, ifnet plugin would read the configuration value, which is just wrong because: - the configuration might not be set and ifnet would fail to fallback to the compile time default. - the configuration only is in effect if the plugin is also available. Otherwise, we fallback to the next plugin. Only the dhcp-manager knows which DHCP plugin is in use.
2016-11-25 15:07:19 +01:00
return NULL;
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
}
gboolean
config: drop nm_config_get_dhcp_client() and access config directly Also, ifnet plugin would read the configuration value, which is just wrong because: - the configuration might not be set and ifnet would fail to fallback to the compile time default. - the configuration only is in effect if the plugin is also available. Otherwise, we fallback to the next plugin. Only the dhcp-manager knows which DHCP plugin is in use.
2016-11-25 15:07:19 +01:00
nm_config_get_configure_and_quit (NMConfig *config)
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
{
return TRUE;
}
core/dbus: rework D-Bus implementation to use lower layer GDBusConnection API Previously, we used the generated GDBusInterfaceSkeleton types and glued them via the NMExportedObject base class to our NM types. We also used GDBusObjectManagerServer. Don't do that anymore. The resulting code was more complicated despite (or because?) using generated classes. It was hard to understand, complex, had ordering-issues, and had a runtime and memory overhead. This patch refactors this entirely and uses the lower layer API GDBusConnection directly. It replaces the generated code, GDBusInterfaceSkeleton, and GDBusObjectManagerServer. All this is now done by NMDbusObject and NMDBusManager and static descriptor instances of type GDBusInterfaceInfo. This adds a net plus of more then 1300 lines of hand written code. I claim that this implementation is easier to understand. Note that previously we also required extensive and complex glue code to bind our objects to the generated skeleton objects. Instead, now glue our objects directly to GDBusConnection. The result is more immediate and gets rid of layers of code in between. Now that the D-Bus glue us more under our control, we can address issus and bottlenecks better, instead of adding code to bend the generated skeletons to our needs. Note that the current implementation now only supports one D-Bus connection. That was effectively the case already, although there were places (and still are) where the code pretends it could also support connections from a private socket. We dropped private socket support mainly because it was unused, untested and buggy, but also because GDBusObjectManagerServer could not export the same objects on multiple connections. Now, it would be rather straight forward to fix that and re-introduce ObjectManager on each private connection. But this commit doesn't do that yet, and the new code intentionally supports only one D-Bus connection. Also, the D-Bus startup was simplified. There is no retry, either nm_dbus_manager_start() succeeds, or it detects the initrd case. In the initrd case, bus manager never tries to connect to D-Bus. Since the initrd scenario is not yet used/tested, this is good enough for the moment. It could be easily extended later, for example with polling whether the system bus appears (like was done previously). Also, restart of D-Bus daemon isn't supported either -- just like before. Note how NMDBusManager now implements the ObjectManager D-Bus interface directly. Also, this fixes race issues in the server, by no longer delaying PropertiesChanged signals. NMExportedObject would collect changed properties and send the signal out in idle_emit_properties_changed() on idle. This messes up the ordering of change events w.r.t. other signals and events on the bus. Note that not only NMExportedObject messed up the ordering. Also the generated code would hook into notify() and process change events in and idle handle, exhibiting the same ordering issue too. No longer do that. PropertiesChanged signals will be sent right away by hooking into dispatch_properties_changed(). This means, changing a property in quick succession will no longer be combined and is guaranteed to emit signals for each individual state. Quite possibly we emit now more PropertiesChanged signals then before. However, we are now able to group a set of changes by using standard g_object_freeze_notify()/g_object_thaw_notify(). We probably should make more use of that. Also, now that our signals are all handled in the right order, we might find places where we still emit them in the wrong order. But that is then due to the order in which our GObjects emit signals, not due to an ill behavior of the D-Bus glue. Possibly we need to identify such ordering issues and fix them. Numbers (for contrib/rpm --without debug on x86_64): - the patch changes the code size of NetworkManager by - 2809360 bytes + 2537528 bytes (-9.7%) - Runtime measurements are harder because there is a large variance during testing. In other words, the numbers are not reproducible. Currently, the implementation performs no caching of GVariants at all, but it would be rather simple to add it, if that turns out to be useful. Anyway, without strong claim, it seems that the new form tends to perform slightly better. That would be no surprise. $ time (for i in {1..1000}; do nmcli >/dev/null || break; echo -n .; done) - real 1m39.355s + real 1m37.432s $ time (for i in {1..2000}; do busctl call org.freedesktop.NetworkManager /org/freedesktop org.freedesktop.DBus.ObjectManager GetManagedObjects > /dev/null || break; echo -n .; done) - real 0m26.843s + real 0m25.281s - Regarding RSS size, just looking at the processes in similar conditions, doesn't give a large difference. On my system they consume about 19MB RSS. It seems that the new version has a slightly smaller RSS size. - 19356 RSS + 18660 RSS
2018-02-26 13:51:52 +01:00
NMDBusManager *
nm_dbus_manager_get (void)
{
return NULL;
}
core/dbus: stop NMDBusManager and reject future method calls During shutdown, we will need to still iterate the main loop to do a coordinated shutdown. Currently we do not, and we just exit, leaving a lot of objects hanging. If we are going to fix that, we need during shutdown tell NMDBusManager to reject all future operations. Note that property getters and "GetManagerObjects" call is not blocked. It continues to work. Certainly for some operations, we want to allow them to be called even during shutdown. However, these have to opt-in. This also fixes an uglyness, where nm_dbus_manager_start() would get the set-property-handler and the @manager as user-data. However, NMDBusManager will always outlife NMManager, hence, after NMManager is destroyed, the user-data would be a dangling pointer. Currently that is not an issue, because - we always leak NMManager - we don't run the mainloop during shutdown
2018-04-21 13:25:57 +02:00
gboolean
nm_dbus_manager_is_stopping (NMDBusManager *self)
{
return FALSE;
}
core/dbus: rework D-Bus implementation to use lower layer GDBusConnection API Previously, we used the generated GDBusInterfaceSkeleton types and glued them via the NMExportedObject base class to our NM types. We also used GDBusObjectManagerServer. Don't do that anymore. The resulting code was more complicated despite (or because?) using generated classes. It was hard to understand, complex, had ordering-issues, and had a runtime and memory overhead. This patch refactors this entirely and uses the lower layer API GDBusConnection directly. It replaces the generated code, GDBusInterfaceSkeleton, and GDBusObjectManagerServer. All this is now done by NMDbusObject and NMDBusManager and static descriptor instances of type GDBusInterfaceInfo. This adds a net plus of more then 1300 lines of hand written code. I claim that this implementation is easier to understand. Note that previously we also required extensive and complex glue code to bind our objects to the generated skeleton objects. Instead, now glue our objects directly to GDBusConnection. The result is more immediate and gets rid of layers of code in between. Now that the D-Bus glue us more under our control, we can address issus and bottlenecks better, instead of adding code to bend the generated skeletons to our needs. Note that the current implementation now only supports one D-Bus connection. That was effectively the case already, although there were places (and still are) where the code pretends it could also support connections from a private socket. We dropped private socket support mainly because it was unused, untested and buggy, but also because GDBusObjectManagerServer could not export the same objects on multiple connections. Now, it would be rather straight forward to fix that and re-introduce ObjectManager on each private connection. But this commit doesn't do that yet, and the new code intentionally supports only one D-Bus connection. Also, the D-Bus startup was simplified. There is no retry, either nm_dbus_manager_start() succeeds, or it detects the initrd case. In the initrd case, bus manager never tries to connect to D-Bus. Since the initrd scenario is not yet used/tested, this is good enough for the moment. It could be easily extended later, for example with polling whether the system bus appears (like was done previously). Also, restart of D-Bus daemon isn't supported either -- just like before. Note how NMDBusManager now implements the ObjectManager D-Bus interface directly. Also, this fixes race issues in the server, by no longer delaying PropertiesChanged signals. NMExportedObject would collect changed properties and send the signal out in idle_emit_properties_changed() on idle. This messes up the ordering of change events w.r.t. other signals and events on the bus. Note that not only NMExportedObject messed up the ordering. Also the generated code would hook into notify() and process change events in and idle handle, exhibiting the same ordering issue too. No longer do that. PropertiesChanged signals will be sent right away by hooking into dispatch_properties_changed(). This means, changing a property in quick succession will no longer be combined and is guaranteed to emit signals for each individual state. Quite possibly we emit now more PropertiesChanged signals then before. However, we are now able to group a set of changes by using standard g_object_freeze_notify()/g_object_thaw_notify(). We probably should make more use of that. Also, now that our signals are all handled in the right order, we might find places where we still emit them in the wrong order. But that is then due to the order in which our GObjects emit signals, not due to an ill behavior of the D-Bus glue. Possibly we need to identify such ordering issues and fix them. Numbers (for contrib/rpm --without debug on x86_64): - the patch changes the code size of NetworkManager by - 2809360 bytes + 2537528 bytes (-9.7%) - Runtime measurements are harder because there is a large variance during testing. In other words, the numbers are not reproducible. Currently, the implementation performs no caching of GVariants at all, but it would be rather simple to add it, if that turns out to be useful. Anyway, without strong claim, it seems that the new form tends to perform slightly better. That would be no surprise. $ time (for i in {1..1000}; do nmcli >/dev/null || break; echo -n .; done) - real 1m39.355s + real 1m37.432s $ time (for i in {1..2000}; do busctl call org.freedesktop.NetworkManager /org/freedesktop org.freedesktop.DBus.ObjectManager GetManagedObjects > /dev/null || break; echo -n .; done) - real 0m26.843s + real 0m25.281s - Regarding RSS size, just looking at the processes in similar conditions, doesn't give a large difference. On my system they consume about 19MB RSS. It seems that the new version has a slightly smaller RSS size. - 19356 RSS + 18660 RSS
2018-02-26 13:51:52 +01:00
void
_nm_dbus_manager_obj_export (NMDBusObject *obj)
{
}
void
_nm_dbus_manager_obj_unexport (NMDBusObject *obj)
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
{
}
void
core/dbus: rework D-Bus implementation to use lower layer GDBusConnection API Previously, we used the generated GDBusInterfaceSkeleton types and glued them via the NMExportedObject base class to our NM types. We also used GDBusObjectManagerServer. Don't do that anymore. The resulting code was more complicated despite (or because?) using generated classes. It was hard to understand, complex, had ordering-issues, and had a runtime and memory overhead. This patch refactors this entirely and uses the lower layer API GDBusConnection directly. It replaces the generated code, GDBusInterfaceSkeleton, and GDBusObjectManagerServer. All this is now done by NMDbusObject and NMDBusManager and static descriptor instances of type GDBusInterfaceInfo. This adds a net plus of more then 1300 lines of hand written code. I claim that this implementation is easier to understand. Note that previously we also required extensive and complex glue code to bind our objects to the generated skeleton objects. Instead, now glue our objects directly to GDBusConnection. The result is more immediate and gets rid of layers of code in between. Now that the D-Bus glue us more under our control, we can address issus and bottlenecks better, instead of adding code to bend the generated skeletons to our needs. Note that the current implementation now only supports one D-Bus connection. That was effectively the case already, although there were places (and still are) where the code pretends it could also support connections from a private socket. We dropped private socket support mainly because it was unused, untested and buggy, but also because GDBusObjectManagerServer could not export the same objects on multiple connections. Now, it would be rather straight forward to fix that and re-introduce ObjectManager on each private connection. But this commit doesn't do that yet, and the new code intentionally supports only one D-Bus connection. Also, the D-Bus startup was simplified. There is no retry, either nm_dbus_manager_start() succeeds, or it detects the initrd case. In the initrd case, bus manager never tries to connect to D-Bus. Since the initrd scenario is not yet used/tested, this is good enough for the moment. It could be easily extended later, for example with polling whether the system bus appears (like was done previously). Also, restart of D-Bus daemon isn't supported either -- just like before. Note how NMDBusManager now implements the ObjectManager D-Bus interface directly. Also, this fixes race issues in the server, by no longer delaying PropertiesChanged signals. NMExportedObject would collect changed properties and send the signal out in idle_emit_properties_changed() on idle. This messes up the ordering of change events w.r.t. other signals and events on the bus. Note that not only NMExportedObject messed up the ordering. Also the generated code would hook into notify() and process change events in and idle handle, exhibiting the same ordering issue too. No longer do that. PropertiesChanged signals will be sent right away by hooking into dispatch_properties_changed(). This means, changing a property in quick succession will no longer be combined and is guaranteed to emit signals for each individual state. Quite possibly we emit now more PropertiesChanged signals then before. However, we are now able to group a set of changes by using standard g_object_freeze_notify()/g_object_thaw_notify(). We probably should make more use of that. Also, now that our signals are all handled in the right order, we might find places where we still emit them in the wrong order. But that is then due to the order in which our GObjects emit signals, not due to an ill behavior of the D-Bus glue. Possibly we need to identify such ordering issues and fix them. Numbers (for contrib/rpm --without debug on x86_64): - the patch changes the code size of NetworkManager by - 2809360 bytes + 2537528 bytes (-9.7%) - Runtime measurements are harder because there is a large variance during testing. In other words, the numbers are not reproducible. Currently, the implementation performs no caching of GVariants at all, but it would be rather simple to add it, if that turns out to be useful. Anyway, without strong claim, it seems that the new form tends to perform slightly better. That would be no surprise. $ time (for i in {1..1000}; do nmcli >/dev/null || break; echo -n .; done) - real 1m39.355s + real 1m37.432s $ time (for i in {1..2000}; do busctl call org.freedesktop.NetworkManager /org/freedesktop org.freedesktop.DBus.ObjectManager GetManagedObjects > /dev/null || break; echo -n .; done) - real 0m26.843s + real 0m25.281s - Regarding RSS size, just looking at the processes in similar conditions, doesn't give a large difference. On my system they consume about 19MB RSS. It seems that the new version has a slightly smaller RSS size. - 19356 RSS + 18660 RSS
2018-02-26 13:51:52 +01:00
_nm_dbus_manager_obj_notify (NMDBusObject *obj,
guint n_pspecs,
const GParamSpec *const*pspecs)
iface-helper: add nm-iface-helper for dynamic configure-then-quit support When quitting, the Manager asks each device to spawn the interface helper, which persists and manages dynamic address on the interface after NetworkManager is gone. If the dynamic address cannot be maintaned, the helper quits and the interface's address may be removed when their lifetime runs out. To keep the helper as simple as possible, NetworkManager passes most of the configuration on the command-line, including some properties of the device's current state, which are necessary for the helper to maintain DHCP leases or IPv6 SLAAC addresses.
2014-10-29 09:12:18 -05:00
{
}
void
core/dbus: rework D-Bus implementation to use lower layer GDBusConnection API Previously, we used the generated GDBusInterfaceSkeleton types and glued them via the NMExportedObject base class to our NM types. We also used GDBusObjectManagerServer. Don't do that anymore. The resulting code was more complicated despite (or because?) using generated classes. It was hard to understand, complex, had ordering-issues, and had a runtime and memory overhead. This patch refactors this entirely and uses the lower layer API GDBusConnection directly. It replaces the generated code, GDBusInterfaceSkeleton, and GDBusObjectManagerServer. All this is now done by NMDbusObject and NMDBusManager and static descriptor instances of type GDBusInterfaceInfo. This adds a net plus of more then 1300 lines of hand written code. I claim that this implementation is easier to understand. Note that previously we also required extensive and complex glue code to bind our objects to the generated skeleton objects. Instead, now glue our objects directly to GDBusConnection. The result is more immediate and gets rid of layers of code in between. Now that the D-Bus glue us more under our control, we can address issus and bottlenecks better, instead of adding code to bend the generated skeletons to our needs. Note that the current implementation now only supports one D-Bus connection. That was effectively the case already, although there were places (and still are) where the code pretends it could also support connections from a private socket. We dropped private socket support mainly because it was unused, untested and buggy, but also because GDBusObjectManagerServer could not export the same objects on multiple connections. Now, it would be rather straight forward to fix that and re-introduce ObjectManager on each private connection. But this commit doesn't do that yet, and the new code intentionally supports only one D-Bus connection. Also, the D-Bus startup was simplified. There is no retry, either nm_dbus_manager_start() succeeds, or it detects the initrd case. In the initrd case, bus manager never tries to connect to D-Bus. Since the initrd scenario is not yet used/tested, this is good enough for the moment. It could be easily extended later, for example with polling whether the system bus appears (like was done previously). Also, restart of D-Bus daemon isn't supported either -- just like before. Note how NMDBusManager now implements the ObjectManager D-Bus interface directly. Also, this fixes race issues in the server, by no longer delaying PropertiesChanged signals. NMExportedObject would collect changed properties and send the signal out in idle_emit_properties_changed() on idle. This messes up the ordering of change events w.r.t. other signals and events on the bus. Note that not only NMExportedObject messed up the ordering. Also the generated code would hook into notify() and process change events in and idle handle, exhibiting the same ordering issue too. No longer do that. PropertiesChanged signals will be sent right away by hooking into dispatch_properties_changed(). This means, changing a property in quick succession will no longer be combined and is guaranteed to emit signals for each individual state. Quite possibly we emit now more PropertiesChanged signals then before. However, we are now able to group a set of changes by using standard g_object_freeze_notify()/g_object_thaw_notify(). We probably should make more use of that. Also, now that our signals are all handled in the right order, we might find places where we still emit them in the wrong order. But that is then due to the order in which our GObjects emit signals, not due to an ill behavior of the D-Bus glue. Possibly we need to identify such ordering issues and fix them. Numbers (for contrib/rpm --without debug on x86_64): - the patch changes the code size of NetworkManager by - 2809360 bytes + 2537528 bytes (-9.7%) - Runtime measurements are harder because there is a large variance during testing. In other words, the numbers are not reproducible. Currently, the implementation performs no caching of GVariants at all, but it would be rather simple to add it, if that turns out to be useful. Anyway, without strong claim, it seems that the new form tends to perform slightly better. That would be no surprise. $ time (for i in {1..1000}; do nmcli >/dev/null || break; echo -n .; done) - real 1m39.355s + real 1m37.432s $ time (for i in {1..2000}; do busctl call org.freedesktop.NetworkManager /org/freedesktop org.freedesktop.DBus.ObjectManager GetManagedObjects > /dev/null || break; echo -n .; done) - real 0m26.843s + real 0m25.281s - Regarding RSS size, just looking at the processes in similar conditions, doesn't give a large difference. On my system they consume about 19MB RSS. It seems that the new version has a slightly smaller RSS size. - 19356 RSS + 18660 RSS
2018-02-26 13:51:52 +01:00
_nm_dbus_manager_obj_emit_signal (NMDBusObject *obj,
const NMDBusInterfaceInfoExtended *interface_info,
const GDBusSignalInfo *signal_info,
GVariant *args)
core: move D-Bus export/unexport into NMExportedObject Move D-Bus export/unexport handling into NMExportedObject and remove type-specific export/get_path methods (export paths are now specified at the class level, and NMExportedObject handles the counters for all exported types automatically). Since all exportable objects now use the same get_path() method, we can also add some helper methods to simplify get_property() implementations for object-path and object-path-array properties.
2015-04-03 10:08:52 -04:00
{
}
dbus: fix emitting D-Bus NetworkManager's old-style PropertiesChange signal Before switching to gdbus (before 1.2.0), NetworkManager used dbus-glib. Most objects in the D-Bus API with properties had a signal NetworkManager-specific "PropertiesChanged" signal. Nowadays, this way of handling of property changes is deprecated for the common "PropertiesChanged" signal on the "org.freedesktop.DBus.Properties" interface. There were a few pecularities in 1.0.0 and earlier: (1) Due to the implementation with dbus-glib, a property-changed signal was emitted on *all* interfaces. For example: - a change on a NMDeviceVeth of "NMDeviceEthernet.HwAddress" would be emitted both for the interfaces "fdo.NM.Device.Ethernet" and "fdo.NM.Device.Veth". Note that NMDeviceVeth is derived from NMDeviceEthernet and there is no "HwAddress" on veth device. - a change of "NMVpnConnection.VpnState" was emitted on both interfaces "fdo.NM.VPN.Connection" and "fdo.NM.Connecion.Active". Note that NMActiveConnection is the parent type of NMVpnConnection and only the latter has a property "VpnState". (2) NMDevice's "fdo.NM.Device" interface doesn't have a "PropertiesChanged" signal. From (1) follows that all property-changes for this type were instead invoked with an interface like "fdo.NM.Device.Ethernet" (or multiple interfaces in case of NMDeviceVeth). 1.2.0 introduced gdbus, which gives us the standard "fdo.DBus.Properties" signal. However, it made the mistake of not realizing (1), thus instead of emitting the signal once for each interface, it would pick the first one in the inheritance tree. With 1.4.0, a bug from merge commit 844345e caused signals for devices to be only emitted for the interface "fdo.NM.Device.Statistics", instead of "fdo.NM.Device.Ethernet" or "fdo.NM.Device.Veth" (or both). The latter is what bgo#770629 is about and what commit 82e9439 tried to fix. However, the fix was wrong because it tried to do the theoretically correct thing of emitting the property-changed signal exactly once for the interface that actually ontains the property. In addition, it missed that NMDevice doesn't have a PropertiesChanged signal, which caused signals for "fdo.NM.Device" to get lost *sigh*. Now, restore the (broken) behavior of 1.0.0. These old-style property changed signals are anyway considered deprecated and exist solely to satisfy old clients and preserve the old API. Fixes: 63fbfad3705db5901e6a2a6a2fc332da0f0ae4be https://bugzilla.gnome.org/show_bug.cgi?id=770629 https://bugzilla.redhat.com/show_bug.cgi?id=1371920
2016-09-01 13:00:21 +02:00
GType
nm_device_get_type (void)
{
g_return_val_if_reached (0);
}
GType
nm_active_connection_get_type (void)
{
g_return_val_if_reached (0);
}
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