Linux Containers - LXC

17 Jun 2022

Introduction¶

The LXC team is pleased to announce the release of LXC 5.0.0!

This is the result of two years of work since the LXC 4.0.0 release and is the fifth LTS release for the LXC project. This release will be supported until June 2027.

Major changes¶

Switch to meson¶

With this release of LXC, autotools is being replaced by meson as the build tooling. Compatibility Makefile targets are provided for all, install and dist.

This is a change which is particularly relevant for packagers as it otherwise has no user visible impact.

New cgroup configuration options¶

Four new options were added:

lxc.cgroup.dir.container
lxc.cgroup.dir.monitor
lxc.cgroup.dir.monitor.pivot
lxc.cgroup.dir.container.inner

Those allow controlling exactly what cgroup paths will be used for the container itself, for the monitor process, for the moitor process upon container termination as well as allow the container cgroup to be placed inside of a nested (inner) cgroup.

Time namespace support¶

LXC now supports setting up the time namespace.
This is done through two new options:

lxc.time.offset.boot
lxc.time.offset.monotonic

Which will apply an offset (anywhere from a few nanoseconds to hours) on top of the main system clock.

VLAN support on VETH devices¶

Two new config options were added to the VETH network devices to control VLAN tagging.

veth.vlan.id
veth.vlan.tagged.id

The former sets the primary (untagged) VLAN while the latter is used to set additional tagged VLANs on the device. This requires the use of VLAN filtering on the parent bridge device.

Configurable transmit/receive queues on VETH devices¶

Still on VETH devices. It's now possible to customize the number of receive and transmit queues through two new configuration options:

veth.n_rxqueues
veth.n_txqueues

Complete changelog¶

Here is a complete list of all changes in this release:

Full commit list

configure.ac: Reset devel flag post-release
lxc_init: move main() down
lxc_init: add missing O_CLOEXEC
[lxc.service] Starts after remote-fs.target to allow containers relying on remote FS to work
tree-wide: harden mount option parsing
dir: use cleanup macro in dir_mount()
dir: improve dir backend
cgroups: fix attaching to the unified cgroup
conf: rework and fix leak in userns_exec_1()
commands: log actual errno when lxc_cmd_get_cgroup2_fd() fails
cgroups: move pointer dereference after check
cgroups: rework __cg_unified_attach()
attach: use close_prot_errno_disarm()
cgroups: remove unused variable
cgroups: fix unified cgroup attach
fixup i/o handler return values
Revert "cgroups: fix unified cgroup attach"
conf: introduce and use userns_exec_minimal()
conf: simplify userns_exec_minimal()
cgroups: use hidden directory for attaching cgroup
cgroups: please compilers
monitor process exited by signal SIGKILL, clean cgroup resource by third party
cgroups: move check for valid monitor process up
cgroups: better helper naming
tree-wide: s/recursive_destroy/lxc_rm_rf/g
verify cgroup controller name
cgroups: handle older kernels (e.g. v4.9)
start: log error when failing to create cgroup
cgroups: send two attach fds
cgroups: send two fds to attach to unified cgroup
start: remove unnecessary check for valid cgroup_ops
init: add ExecReload to lxc.service to only reload profiles
allow running lxc-monitord as a system daemon
fix non-root user cannot write /dev/stdout
apparmor: generate ro,bind,remount rule list
autotools: don't install run-coccinelle.sh
systemd: Add Documentation key
cgroups: fix "uninitialized transient_len" warning
utils: rework fix_stdio_permissions()
utils: use setres{u,g}id() in lxc_switch_uid_gid()
cgroups: fix build warning on GCC 7
lxccontainer: poll takes millisecond not seconds
Revert "start: remove unnecessary check for valid cgroup_ops"
introduce lxc.cgroup.dir.{monitor,container,container.inner}
cgroups: remove unused variable
doc: s/lxc.cgroup.container.namespace/lxc.cgroup.container.inner/g
confile: coding style fixes for set_config_cgroup_container_inner_dir()
api-extensions: add and document cgroup_advanced_isolation
doc: Add lxc.cgroup.dir.{monitor,container,container.inner} to Japanese man
confile: fix jump table order
get the right path in get_cgroup command
cgroup isolation: handle devices cgroup early
start: ensure all file descriptors are closed during exec
syscall_numbers: handle riscv
lxc_user_nic: simplify group retrieval
lxc_user_nic: continue when we failed to find a group
cgroups: whitespace fixes
seccomp: newer kernels require the buffer to be zeroed
network: Make it possible to set the mode of IPVLAN to L2
src/lxc/network: ipvlan comment and code style tweak
conf: tweak get_minimal_idmap()
conf: use macros all around in lxc_map_ids()
conf: move_ptr() in all cases in mapped_hostid_add()
lxc-update-config: Fix bad handling of lxc.logfile
tests/no-new-privs: Don't mess with /etc/lxc
cgroups: ignore legacy limits on pure cgroup2 systems
Fix lxc-oci template with loop backingstore
cgroup: fix wrong use of cgfd_con in cgroup_exit
cgroups: adhere to boolean return
travis: add back coverity
memory_utils: directly NULL ptr in free_disarm()
conf: fix tty cleanup
cgroups: do not pass NULL pointer
uuid: close fd
cgroups: fix cgroup2 devices
rexec: avoid double-close
cgroups: use correct NULL pointer check
conf: don't double free in get_minimal_idmap()
criu: make explicit that we're ignoring rmdir() return value
zfs: fix resource leak
commands: add additional check to lxc_cmd_sock_get_state()
network: log warning on network deconfiguration failures
log: restore non-local value
attach: move check for valid config earlier
rexec: free argv array on failure
conf: correctly cleanup memory in get_minimal_idmap()
log: set GNU_SOURCE as it might help coverity along
travis: coverity gets confused about the %m printf extension in glibc
cgroups: fix cgroup limit braino
configure: fix coverity builds
apparmor: Allow boot_id
src/lxc/network: Fixes netlink attribute type 1 has an invalid length message
cgroups: ignore cgroup2 limits on non-cgroup2 layouts
common.conf: add cgroup2 default device limits
cgroups: premount cgroups on cgroup2-only systems
conf: introduce userns_exec_mapped_root()
conf: support console setup on containers without rootfs
terminal: remove unneeded if condition
gcc: add -Warray-bounds, -Wrestrict, -Wreturn-local-addr, -Wstringop-overflow
compiler: support new access attributes
tree-wide: this is all rather TODO than FIXME
yum: remove unused module
tools/lxc-ls: shutup lgtm
tools/lxc-ls: shut up lgtm more
confile: fix order independence of network keys
lxccontainer: small cleanup to lxc_check_inherited() calls
start: remove unused lxc_zero_handler()
lxccontainer: use close_prot_errno_disarm() on state_socket_pair
start: fix container reboot
start: cleanup file descriptor inheritance
log: cleanup syslog handling
console: only create detached mount when a console is requested
syscall_numbers: handle ia64 syscall numbers correctly
syscall_numbers: add clone3()
process_utils: introduce new process_utils.{c,h}
process_utils: add clone3() support
mainloop: add lxc_mainloop_add_handler_events
cgfsng: deduplicate freeze code
cgfsng: use EPOLLPRI when polling cgroup.events
process_utils: make lxc use clone3() whenever possible
cgroups: be less alarming when creating cgroups
improve LXC_CMD_GET_CGROUP compatibility
network: restore old behavior
network: fix {mac,ip,v}lan device creation
bionic: s/lxc_raw_execveat()/execveat()/g
network: use __instantiate_ns_common() in instantiate_ns_phys() too
lxc-usernsexec: dumb down from error to warning message
lxc-usernsexec: don't fail on setgroups()
travis: Restrict coverity to gcc on bionic on amd64
api_extensions: add "pidfd"
Add test of lxc-usernsexec
lxc-test-usernsexec: If user is root, then create and use non-root user.
.gitignore: Ignores COPYING file created by make
macro: Adds UINT_TO_PTR and PTR_TO_USHORT helpers
network: Adds check for bridge link interface existence in instantiate_veth
api/extensions: Adds network_bridge_vlan API extension
macro: Adds bridge VLAN constants
macro: Adds constant for BRIDGE_VLAN_NONE mode
macro: Adds BRIDGE_VLAN_ID_MAX constant
network: Adds veth vlan_id, vlan_id_set and vlan_tagged_ids
confile: Adds validation for lxc.net.veth.vlan.id
confile: Adds validation for lxc.net.veth.vlan.tagged.id
confile/utils: Adds veth mode and vlan ID tracing to lxc_log_configured_netdevs
confile/utils: Adds veth vlan tagged ID tracing to lxc_log_configured_netdevs
confile/utils: Adds freeing of priv.veth_attr.vlan_tagged_ids
tests: Adds test for lxc.net.0.veth.vlan.id config key
tests: Adds test for bridge vlan "none" value
tests: Adds test for lxc.net.0.veth.vlan.tagged.id config key
network: Adds bridge vlan management functions
network: Updates instantiate_veth to set bridge vlan settings
doc: Adds documentation for veth vlan bridge options
network: Updates netlink_open handling in lxc_ipvlan_create
network: Adds OVS VLAN setup functions
network: Updates instantiate_veth to support OVS VLAN setup
confile: Fix coverity issue, missing return in get_config_net_veth_vlan_tagged_id
network: Fix coverity issue, leaking data in lxc_ovs_setup_bridge_vlan_exec
network: Fix coverity issue, dont initialise string pointers in setup_veth_ovs_bridge_vlan
network: Removes unused ip_proxy_args
network: Adds free_ovs_veth_vlan_args and allows trunks field to be freed
network: Fix int type in log message
network: Adds calls to free_ovs_veth_vlan_args in setup_veth_ovs_bridge_vlan
cgroups: initialize lxc.pivot cpuset
conf: remove faulty flags
conf: always use target_fd in userns_exec_mapped_root()
conf: add some more logging to userns_exec_mapped_root()
conf: kill old chown_mapped_root()
lxccontainer: remove pointless string duplication
nl: fix memory leak
containertests: fix null pointer defereference
tree-wide: use "ptmx" and "pts" as terminal terms
tree-wide: wipe references to questionable apis from our public logs
tree-wide: use "primary" in networking code
Revert "nl: fix memory leak"
network: Rename primary to master
openpty: adapt variable naming
CODING_STYLE: adapt code example
doc: update terminology
test: update terminology
lxccontainer: fix non-blocking container stop
lxc-net: Set broadcast
commands: don't flood logs
lxc: add time namespace support
api: add time_namespace extension
doc: add lxc.time.offset.{boot,monotonic}
doc: Add veth vlan bridge options to Japanese lxc.container.conf(5)
doc: Add lxc.time.offset.* to Japanese lxc.container.conf(5)
confile: handle overflow in lxc.time.offset.{boot,monotonic}
start: preserve time namespace
lxc: support CLONE_INTO_CGROUP
start: initialize cgroup_fd
start: use __aligned_u64
attach: set no_new_privs flag after LSM label
templates/lxc-download.in: fix wrong if condition (use the result of the gpg command, not the result when executing the result of the gpg command)
templates/lxc-download.in: make shellcheck happy
templates/lxc-download.in: use GPG option --receive-keys instead of --recv-keys
cgroups: update terminology
cgroups: update terminology II
seccomp: support allowlist/denylist in profiles
cgroups: use empty {} to initialize struct
cgroup2_devices: fix access rule parsing
api-extensions: add seccomp_allow_deny_syntax extension
cgroups: fix bpf device program generation
cgroups: handle empty bpf log buffer
tree-wide: s/ptmx/ptx/g
tree-wide: s/pts/pty/g
openpty: fix faulty rename
openpty: improve implementation and handling of platforms without it
checkconfig: Show LXC version in output.
autotools: include COPYING file
Improve efficiency of lxc_ifname_alnum_case_sensitive
network: remove unused variable
compiler: add and use __hidden visbility
string_utils: make all helpers hidden
af_unix: hide unnecessary symbols
attach: hide unnecessary symbols
caps: hide unnecessary symbols
commands: hide unnecessary symbols
commands_utils: hide unnecessary symbols
conf: hide unnecessary symbols
Makefile.am: Fix typo
lxc-ls: bugfixes
confile: hide unnecessary symbols
confile_utils: hide unnecessary symbols
criu: hide unnecessary symbols
error: hide unnecessary symbols
file_utils: hide unnecessary symbols
initutils: hide unnecessary symbols
log: hide unnecessary symbols
lxclock: hide unnecessary symbols
lxcseccomp: hide unnecessary symbols
mainloop: hide unnecessary symbols
monitor: hide unnecessary symbols
namespace: hide unnecessary symbols
network: hide unnecessary symbols
parse: hide unnecessary symbols
process_utils: hide unnecessary symbols
rexec: hide unnecessary symbols
ringbuf: hide unnecessary symbols
start: hide unnecessary symbols
state: hide unnecessary symbols
sync: hide unnecessary symbols
terminal: hide unnecessary symbols
utils: hide unnecessary symbols
uuid: hide unnecessary symbols
cgroups: hide unnecessary symbols
lsm: hide unnecessary symbols
arguments: hide unnecessary symbols
storage: hide unnecessary symbols
tree-wide: hide further unnecessary symbols
start: simplify gotos
apparmor: Allow ro remount of boot_id
syscalls: add fsopen()
syscalls: add fspick()
syscalls: add fsconfig()
syscalls: add fsmount()
mount_utils: add mount utils
mount_utils: add mount_filesystem() helper
attach: use new mount api
log: don't break logging by hiding symbols
Makefile: fix Makefile
selinux: remove security_context_t usage as it's deprecated
seccomp: remove seccomp fd from event loop after task exited
seccomp: add missing header
syscall: don't fail if __NR_signalfd is not defined
conf: ensure that the idmap pointer itself is freed
terminal: safely allocate pts devices from inside the container
macro: define TIOCGPTPEER if missing
conf: use openat() instead of open_tree()
seccomp: don't close the mainloop, simply remove the handler
seccomp: add seccomp_notify_fd_active api extension
seccomp: send notify fd as part of the message
api-extension: add missing seccomp_proxy_send_notify_fd extension
Revert "templates/lxc-download.in: use GPG option --receive-keys instead of --recv-keys"
lxc-download: Fix retry loop
syscalls: add openat2()
utils: add safe_mount_beneath() based on openat2()
conf: switch mount_autodev() to new safe_mount_beneath() helper
cgfsng: use safe_mount_beneath()
utils: introduce safe_mount_beneath_at()
conf: stash file descriptor to root mountpoint in struct lxc_rootfs
conf: make use of stashed container mountpoint fd in mount_autodev()
file_utils: add exists_dir_at()
conf: harden lxc_fill_autodev() via save_mount_beneath_at()
conf: move /dev setup to be file descriptor based
terminal: harden terminal allocation
lsm: rework lsm handling
lsm: use atomic in ase we're used multi-threaded
lsm: remove the need for atomic operations
Updated documentation to reflect lack of support for pure cgroupv2
cgfsng: fix cgroup attach cgroup creation
remove deprecated options in lxc.service fixes #3527
Check only rootfs as filesystem type
cgroups: fix armhf builds
remove useless parameters
avoid a NULL pointer dereference in lxc-attach
terminal: introduce lxc_terminal_signal_sigmask_safe_blocked()
attach: use lxc_terminal_signal_sigmask_safe_blocked()
commands: don't fail if unfreeze fails
lxc-usernsexec: setgroups() similar to other places shouldn't fail on EPERM
Remove obsolete setting regarding the Standard Output
seccomp: Check if syscall is supported on compat architecture.
seccomp: log invalid seccomp notify ids
seccomp: improve default notification sending
seccomp: fix compilation on powerpc
sync: switch to new error helpers
sync: log synchronization states
start: improve devpts fd sending
conf: always send response to parent waiting for devptfs_fd
conf: account for early return when sending devpts fd
Update Japanese pam_cgfs(8) to reflect lack of support for pure cgroupv2
seccomp: Fix handling of pseudo syscalls and improve logging for rule processing.
seccomp: Avoid duplicate processing of rules for host native arch.
Introduce lxc.cgroup.dir.monitor.pivot
lxccontainer: fix lxc_config_item_is_supported
tests: Fix compilation with appamor enabled.
lxc-attach: Enable setting the SELinux context
commands: don't deref after NULL check
utils: don't deref after NULL check
conf: check snprint return value
utils: check snprintf return value
attach: require that LXC_ATTACH_LSM_LABEL is specified
seccomp: make seccomp notifier fd non-blocking
seccomp: log aborted system calls
Add missing free for monitor_pivot_dir.
attach: silence stdio permission adjust warnings
cgfsng: adjust log level to warn instead of error
parse: rework config parsing routine
conf: switch to fd_to_fd() when copying mountinfo
file_utils: fix config file parsing
commands_utils: fix lxc-wait
doc: Add lxc.cgroup.dir.monitor.pivot to Japanese man page
network: fix LXC_NET_NONE cleanup
macro: move MAX_GRBUF_SIZE
macro: bump MAX_GRBUF_SIZE to 2 mb
tree-wide: use call_cleaner(netns_freeifaddrs)
confile: clean up network configuration parsing
confile: clean up hooks
confile: cleanup set_config_personality()
confile: cleanup set_config_pty_max()
confile: cleanup set_config_start()
confile: cleanup set_config_monitor()
confile: cleanup set_config_monitor_signal_pdeath()
confile: cleanup set_config_group()
confile: cleanup set_config_environment()
confile: cleanup set_config_tty_max()
confile: cleanup set_config_apparmor_allow_incomplete()
confile: cleanup set_config_apparmor_allow_nesting()
confile: cleanup set_config_apparmor_raw()
confile: cleanup set_config_log_file()
confile: cleanup set_config_log_level()
confile: cleanup set_config_log_level()
confile: cleanup set_config_signal_halt()
confile: cleanup set_config_signal_reboot()
confile: cleanup set_config_signal_stop()
confile: cleanup __set_config_cgroup_controller()
confile: cleanup set_config_cgroup_relative()
confile: cleanup set_config_prlimit()
confile: cleanup set_config_sysctl()
confile: cleanup set_config_proc()
confile: cleanup set_config_idmaps()
confile: cleanup set_config_mount_fstab()
confile: cleanup set_config_mount_auto()
confile: cleanup set_config_mount()
confile: cleanup set_config_cap_keep()
confile: cleanup set_config_cap_drop()
confile: cleanup set_config_console_rotate()
confile: cleanup set_config_console_buffer_size()
confile: cleanup set_config_console_size()
confile: cleanup append_unexp_config_line()
confile: cleanup do_includedir()
confile: cleanup set_config_rootfs_path()
confile: cleanup set_config_rootfs_options()
confile: cleanup set_config_uts_name()
confile: cleanup set_config_namespace_clone()
confile: cleanup set_config_namespace_keep()
confile: cleanup set_config_time_offset_boot()
confile: cleanup set_config_time_offset_monotonic()
confile: cleanup parse_line()
confile: cleanup parse_new_conf_line()
confile: cleanup lxc_config_define_add()
confile: cleanup lxc_config_parse_arch()
confile: cleanup lxc_fill_elevated_privileges()
confile: cleanup write_config()
confile: cleanup clone_update_unexp_ovl_paths()
confile: cleanup clone_update_unexp_hooks()
confile: cleanup set_config_ephemeral()
confile: cleanup set_config_log_syslog()
confile: set_config_no_new_privs()
confile: cleanup __get_config_cgroup_controller()
confile: cleanup get_config_idmaps()
confile: cleanup get_config_hooks()
confile: cleanup get_config_seccomp_allow_nesting()
confile: cleanup get_config_seccomp_notify_cookie()
confile: cleanup get_config_seccomp_notify_proxy()
confile: get_config_prlimit()
confile: cleanup get_config_sysctl()
confile: cleanup get_config_proc()
confile: cleanup clr_config_tty_dir()
confile: cleanup clr_config_apparmor_profile()
confile: cleanup clr_config_selinux_context()
confile: cleanup clr_config_selinux_context_keyring()
confile: cleanup clr_config_cgroup_dir()
confile: cleanup clr_config_log_file()
confile: cleanup clr_config_mount_fstab()
confile: cleanup clr_config_rootfs_path()
confile: cleanup clr_config_rootfs_mount()
confile: cleanup clr_config_rootfs_options()
confile: cleanup clr_config_uts_name()
confile: cleanup clr_config_console_path()
confile: cleanup clr_config_console_logfile()
confile: cleanup clr_config_seccomp_allow_nesting()
confile: cleanup clr_config_seccomp_notify_cookie()
confile: cleanup clr_config_seccomp_notify_proxy()
confile: cleanup clr_config_seccomp_notify_proxy()
confile: cleanup clr_config_log_syslog()
confile: cleanup clr_config_execute_cmd()
confile: cleanup clr_config_init_cmd()
confile: cleanup clr_config_init_cwd()
confile: cleanup get_config_includefiles()
added standard resolver option to the lxc-download.in shell script
Restore interfaces to the correct namespace on error
confile: cleanup get_network_config_ops()
confile: cleanup clr_config_net_nic()
confile: cleanup clr_config_net_type()
confile: cleanup clr_config_net_name()
confile: cleanup clr_config_net_flags()
confile: cleanup clr_config_net_link()
confile: clr_config_net_l2proxy()
confile: cleanup clr_config_net_macvlan_mode()
confile: cleanup clr_config_net_ipvlan_mode()
confile: cleanup clr_config_net_ipvlan_isolation()
confile: cleanup clr_config_net_veth_mode()
confile: cleanup clr_config_net_veth_pair()
confile: cleanup clr_config_net_script_up()
confile: cleanup clr_config_net_script_down()
confile: cleanup clr_config_net_hwaddr()
confile: cleanup clr_config_net_mtu()
confile: cleanup clr_config_net_vlan_id()
confile: cleanup clr_config_net_ipv4_gateway()
confile: cleanup clr_config_net_ipv4_address()
confile: cleanup clr_config_net_veth_ipv4_route()
confile: cleanup clr_config_net_ipv6_gateway()
confile: cleanup clr_config_net_ipv6_address()
confile: cleanup clr_config_net_veth_ipv6_route()
confile: cleanup get_config_net_nic()
confile: cleanup get_config_net_type()
confile: cleanup get_config_net_flags()
confile: cleanup get_config_net_link()
confile: cleanup get_config_net_l2proxy()
confile: cleanup get_config_net_name()
confile: cleanup get_config_net_macvlan_mode()
confile: cleanup get_config_net_ipvlan_mode()
confile: cleanup get_config_net_ipvlan_isolation()
confile: cleanup get_config_net_veth_mode()
confile: cleanup get_config_net_veth_pair()
confile: cleanup get_config_net_veth_vlan_id()
confile: cleanup get_config_net_script_up()
confile: cleanup get_config_net_script_down()
confile: cleanup get_config_net_hwaddr()
confile: cleanup get_config_net_mtu()
confile: cleanup get_config_net_vlan_id()
confile: cleanup get_config_net_ipv4_gateway()
confile: cleanup get_config_net_ipv4_address()
confile: cleanup get_config_net_veth_ipv4_route()
confile: cleanup get_config_net_ipv6_gateway()
confile: cleanup get_config_net_ipv6_address()
confile: cleanup get_config_net_veth_ipv6_route()
confile: lxc_list_subkeys()
confile: cleanup lxc_list_net()
confile_utils: cleanup parse_idmaps()
confile_utils: cleanup lxc_network_add()
confile_utils: cleanup lxc_get_netdev_by_idx()
confile_utils: cleanup lxc_remove_nic_by_idx()
confile_utils: cleanup lxc_free_networks()
confile_utils: cleanup lxc_veth_mode
confile_utils: cleanup lxc_veth_mode_to_flag()
confile_utils: cleanup lxc_veth_flag_to_mode()
confile_utils: cleanup lxc_macvlan_mode
confile_utils: cleanup lxc_macvlan_mode_to_flag()
confile_utils: cleanup lxc_macvlan_flag_to_mode()
confile_utils: cleanup lxc_ipvlan_mode
confile_utils: cleanup lxc_ipvlan_mode_to_flag()
confile_utils: cleanup lxc_ipvlan_flag_to_mode()
confile_utils: cleanup lxc_ipvlan_isolation
confile_utils: cleanup lxc_ipvlan_isolation_to_flag()
confile_utils: cleanup lxc_ipvlan_flag_to_isolation()
confile_utils: cleanup set_config_string_item()
confile_utils: cleanup set_config_string_item_max()
confile_utils: cleanup set_config_bool_item()
confile_utils: cleanup network_ifname()
confile_utils: cleanup new_hwaddr()
lxc: add cleanup helpers
confile_utils: cleanup lxc_container_name_to_pid()
confile_utils: cleanup lxc_inherit_namespace()
confile_utils: cleanup sig_num()
confile_utils: cleanup rt_sig_num()
confile_utils: cleanup sig_parse()
cmd/lxc_init: ignore return value
lxclock: logically dead code
lxclock: cleanup lxc_newlock()
lxclock: cleanup lxclock_name()
lxclock: cleanup lxclock()
lxclock: cleanup lxcunlock()
lxclock: cleanup lxc_putlock()
lxclock: cleanup dump_stacktrace()
lxclock: cleanup lxclock_name()
utils: cleanup get_rundir()
storage/lvm: cleanup do_lvm_create()
network: use empty initializer
storage/btrfs: add missing return
cgroups/cgfsng: remove logically dead code
utils: fix unchecked return value
conf: fix unchecked return value
confile: cleanup set_config_net_l2proxy()
confile_utils: cleanup strprint()
criu: cleanup load_tty_major_minor()
unmounted proc/sys/net if dropping CAP_NET_ADMIN Signed-off-by: Henry Zhang henryzhang99@gmail.com
conf: fix block-device based rootfs mounting
confile: cleanup set_config_hooks()
confile: don't accidently alter lxc.cgroup.dir
utils: allow cross-device resolution
cgroup2: move bpf device cgroup program to struct cgroup_ops
macro: use ascending order for capabilities
conf: define missing capabilities
conf: add new capabilities CAP_{BLOCK_SUSPEND,PERFMON,BPF,CAP_CHECKPOINT_RESTORE}
macro: define all capabilities
conf: add lxc_wants_cap() helper
conf: fix CAP_NET_ADMIN-based mount handling
Changed Version from 2.. to 4..
make lxc-net hermetic w.r.t. existing dnsmasq config
commands: fix check for seccomp notify support
configure: skip libseccomp tests if it is disabled
conf: fix containers retaining CAP_NET_ADMIN
cgroups: fix cgroup mounting
lsm: remove obsolute comment about constructor
lxc_attach: include rexec conditionally
tree-wide: fix some header inclusions
initutils: fix missing includes
configure: support static binaries
autotools: enable static builds for tools
autotools: enable static builds for commands
tree-wide: fix compilation with-Wstrict-prototypes -Wold-style-definition
config: update ax_pthread.m4
configure: add AC_SYS_LARGEFILE checking
autotools: update build
file_utils: introduce read_file_at()
string_utils: add must_make_path_relative()
cgroups: coding style fixes
cgroups: rework cg_unified_init()
cgroups: detect and record cgroup2 freezer support
criu: handle cgroup2 freezer
mkdir -p /proc /sys on container startup
conf: fix coding style
conf: coding style fixes
conf: move proc and sys mountpoint creation int lxc_mount_auto_mounts()
attach: invert child/parent handling
attach: use __do_free cleanup macro for cwd
attach: tweak logging
attach: use __do_close for labelfd
attach: coding style fixes
attach: use free_disarm()
attach: s/attach_child_main/do_attach/g
attach: mark do_attach() as __noreturn
attach: make do_attach() void
attach: use close_prot_errno_disarm()
attach: add some DEBUG() logging to stdfd dpulication
attach: coding style fixes
attach: order variables correctly
attach: move lxc_proc_context_info to file local scope
attach: s/lxc_proc_context_info/attach_context/g
attach: rename attach_context helpers
attach: s/calloc/zalloc/g
attach: split attach_context into allocation and initialization
attach: move lxc_cmd_get_init_pid() int get_attach_context()
attach: move get_personality() into get_attach_context()
attach: move config init into get_attach_context()
attach: add get_attach_context_nsfds()
attach: s/lxc_proc_close_ns_fd/close_nsfds/g
attach: s/lxc_attach_drop_privs/drop_capabilities/g
lsm: s/lsm_init/lsm_init_static/g
attach: fix personality handling
attach: remove obsolete namespace check
attach: move getcwd() into tighter scope
configure: fix static builds with clang-12 and LTO
attach: s/close/close_prot_errno_disarm/g
attach: move attach_clone_payload into tighter scope
attach: rename attach_clone_payload to attach_payload
attach: coding style fixes
sync: export sync_wait() and sync_wake()
sync: rename startup synchronization macros
attach: use sync_wait()/sync_wake() where applicable
attach: introduce sync_wait_pid() and sync_wake_pid()
sync: make all sync helpers return bool
attach: introduce sync_wait_fd() and sync_wake_fd()
attach: use dummy macros to make it easier to follow sync logic
attach: move new_cwd into tighter scope
attach: use STDIN_FILENO instead of hard-coding 0
attach: remove unneeded assignment
attach: rework attaching to namespace fds
attach: move to file descriptor-only interactions
attach: move to file descriptor only namespace interactions
attach: init file descriptors to -EBADF
cgroups: bpf fixes
croups: improve __do_bpf_program_free
cgroups: coding style fixes
cgroups: don't initiliaze NULL log
cgroups: ensure all memory is zeroed
cgroups: use zalloc
cgroups: tweak cgroup initialization
log: remove pointless inline
log: add lxc_log_get_fd()
seccomp: use lxc_log_get_fd()
cgroups: vet parameters more strictly
cgroups: use cleanup macro for consistency
log: rework lxc_log_get_level()
seccomp: use lxc_log_get_level()
cgroups: use bpf log when logging at trace level
log: add lxc_log_trace() helper
attach: don't needless check for NULL
cgroups: use PTR_TO_U64()
cgroups: align methods
attach: file descriptors based LSM handling
attach: hardening through use of pidfds
lsm/apparmor: cleanup apparmor_process_label_set()
file_utils: add fdopenat()
attach: unifiy /proc//status parsing
attach: initialize init_pid field to -ESRCH
attach: move uid and gid handling to get_attach_context()
attach: simplify opening of /proc/self
attach: document attach_context
utils: use SYSTRACE() when logging stdio permission fixup failures
attach: log failues to dup2() with SYSDEBUG()
attach: fix logging for stdfd replacement
attach: fix error checking for dup2()
attach: stash host uid and host gid in attach_context
cgroups: remove pointless NULL checks
cgroups: initialize variable
file_utils: add open_at()
syscall_wrappers: add PROTECT_LOOKUP, PROTECT_OPEN, PROTECT_LOOKUP_WITH_SYMLINKS, PROTECT_OPEN_WITH_TRAILING_SYMLINKS
attach: harden open calls
tree-wide: extend read_file_at()
lsm: harden read_file_at()
file_utils: remove O_NOFOLLOW from open_at() defaults
attach: file descriptor based fdinfo handling
attach: prevent UAF
attach: use correct put method
commands_utils: don't leak memory
conf: use lxc_log_trace()
confile_utils: use lxc_log_trace()
attach: stricter lookup semantics for fdopen_at() calls
attach: move file descriptor closing into attach_context_container()
attach: move loading seccomp as late as possible
memory_utils: add close_prot_errno_mov()
syscall_wrappers: add PROTECT_OPEN_W_* variants
file_utils: harden lxc_open_dirfd()
file_utils: harden lxc_writeat()
cgroups: add unified_cgroup_fd() helper
cgroups: switch controller delegation to fd-only operations
macro: abuse ENOMEDIUM as ENOCGROUP2
file_utils: add lxc_read_try_buf_at()
cgroups: add cgroup_get()
lxccontainer: use cgroup_get()
cgroups: reorder cgroup_get() arguments
cgroups: add croup_set()
lxccontainer: use correct variable ordering
lxccontainer: use cgroup_set()
cgroups: move functions after methods
cgroups: annotate cgroup_get()/cgroup_set()
commands_utils: add lcx_cmd_notify_state_listeners()
freezer: use lxc_cmd_notify_state_listeners()
cgroups: add cgroup_freeze() and cgroup_unfreeze()
freezer: make methods return bool
lxccontainer: use cgroup_freeze() and cgroup_unfreeze()
cgroups: rewind() file before polling again
cgroups: remove unused conf argument
cgroups: vet parameters
lxccontainer: use correct error checks
cgroups: move down cgroup_attach()
cgroups: stricter argument vetting for cgroup_attach()
cgroups: return ENOCGROUP2 from cgroup_attach()
attach: check for ENOCGROUP2 explicitly
cgroups: switch back to returning ints
attach: explicitly close seccomp notifier fd
cgpath: add logging
commands: add missing lxc_cmd_get_limiting_cgroup2_fd() implementation
cgroups: use lxc_cmd_get_limiting_cgroup2_fd()
cgroups: export __cgroup_unfreeze() for use in commands
commands: use __cgroup_unfreeze() directly
freezer: remove lxc_cmd_freeze() and lxc_cmd_unfreeze() calls
test: add logging to device_add_remove
tests: support pure unified cgroup layouts in cgpath test
cgroups: improve parameter vetting
tests: check for NULL in device_add_remove
rexec: check lseek() return value
syscalls: add close_range()
rexec: mark all fds as close-on-exec if possible
conf: remove unnecessary syscall
conf: restrict open of dev/
conf: harden open in lxc_fill_autodev()
conf: fd-only operations in lxc_setup_dev_symlinks()
conf: restrict open for lxc_mount_rootfs()
conf: fd-only pivot root
conf: fd-only devtps setup
attach: attach to namespaces via pidfds
conf: coding style
conf: make lxc_create_tmp_proc_mount() static
conf: restrict open call in lxc_mount_rootfs()
conf: refactor transient procfs mounting
utils: harden __safe_mount_beneath_at()
cgroups: fix cgroup mounting
cgroups: restricted fd-only controller mountpoint creation
cgroups: switch to fd-based cgroup mounting
attach: fix fallback logic when attaching to cgroups
cgroups: fix argument vetting in cgroup_attach()
cgroups: improve error handling and logging in cgroup_attach_leaf()
cgroups: restrict open calls in cgroup_attach_create_leaf()
utils: add mount_from_at()
conf: fix lxc_setup_dev_console()
conf: start stashing dfd to host's / during container setup
conf: restricted fd-only lxc_fill_autodev()
syscall_wrappers: fix PROTECT_OPEN_W macro
tree-wide: s/dev_mntpt_fd/dfd_dev/g
tree-wide: s/mntpt_fd/dfd_mnt/g
tree-wide: s/dfd_root_host/dfd_host/g
cgroups: check for correct error in __cg_unified_attach() from cgroup_attach()
attach: improve logging and terminology
utils: check for snprintf() error
utils: add lxc_drop_groups()
tree-wide: use lxc_drop_groups() instead of lxc_setgroups(0, NULL)
utils: rework lxc_setgroups()
confile: add lxc.init.groups to keep additional groups
attach: Add groups option to keep additional group IDs.
attach_options: initialize .groups
attach_options: use standard C pointer syntax
attach: use brackets around flag check
attach_options: use size_t for lxc_groups_t
conf: use lxc_groups_t directly
confile: handle appending init groups
tests: improve lxc.init.groups tests
confile: make garbage groups an error
mount_utils: move mount_at() and mount_from_at() over from utils.{c,h}
mount_utils: add extended helpers for new mount api
conf: switch mount_autodev() to new mount api
cgroups: switch tmpfs mounting to new mount api
cgroups: switch __cg_mount_direct() to use the new mount api
mount_utils: kill mount_at()
mount_utils: add support for bind-mounts through the new mount api
conf: use fd_bind_mount() in lxc_fill_autodev()
mount_utils: kill mount_from_at()
mount_utils: detect new mount api support
tree-wide: make use of new_mount_api() where it makes sense
mount_utils: initialize fd
attach: switch to simple mount()
mount_utils: kill mount_filesystem()
mount_utils: add locked flag helpers
conf: s/setup_mount()/setup_mount_fstab()/g
conf: kill PATH_MAX bytes
conf: don't pass struct lxc_conf
conf: kill PATH_MAX bytes
conf: kill PAT_MAX bytes
network: Add error message if iw couldn't be found
conf: rework rootfs pinning
mount_utils: s/OPEN_TREE_CLONE | OPEN_TREE_CLONE/OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC/g
conf: fd-only tty setup
tests: add logging to lxc-test-unpriv
conf: kill PATH_MAX bytes
conf: kill PATH_MAX bytes
conf: fix memory leak
criu: mark cgroups methods specific to criu
criu: massage exec_criu()
criu: move logging under lxc_log_trace()
criu: use cleanup macro
criu: use cleanup macro when parsing mount data
criu: rework init pid retrieval
criu: warn about cgroup hierarchies without controllers
criu: lxc_init() already initializes cgroups
criu: handle new cgroup layout
cgroups: use brackets to have clear semantics for flags checking
cgroups: do not return early when entering monitor cgroups
cgroups: log monitor and transient process entering
cgroups: log container process entering
string_utils: add wrapper for snprintf()
cgroups: convert to strnprintf()
attach: convert to strnprintf()
commands_utils: convert to strnprintf()
conf: convert to strnprintf()
confile: convert to strnprintf()
confile_utils: convert to strnprintf()
criu: convert to strnprintf()
file_utils: convert to strnprintf()
log: convert to strnprintf()
lxccontainer: convert to strnprintf()
lxclock: convert to strnprintf()
monitor: convert to strnprintf()
mount_utils: convert to strnprintf()
network: convert to strnprintf()
rexec: convert to strnprintf()
seccomp: convert to strnprintf()
start: convert to strnprintf()
terminal: convert to strnprintf()
string_utils: convert to strnprintf()
utils: convert to strnprintf()
memory_utils: add close_move_fd()
string_utils: add proc_self_fd()
string_utils: add fdstr()
file_utils: add same_file_lax()
macro: add LXC_PROC_SELF_FD_LEN
conf: introduce lxc_bind_mount_console()
tree-wide: rework mount api support checks
attach: convert to strequal()
cgroups: convert to strequal()
conf: convert to strequal()
confile: convert to strequal()
confile_utils: convert to strequal()
criu: convert to strequal()
initutils: convert to strequal()
log: convert to strequal()
lsm: convert to strequal()
lxccontainer: convert to strequal()
network: convert to strequal()
seccomp: convert to strequal()
namespace: convert to strequal()
start: convert to strequal()
state: convert to strequal()
string_utils: convert to strequal()
terminal: convert to strequal()
utils: convert to strequal()
attach: convert to strequal()
cgroups: convert to strequal()
conf: convert to strequal()
confile: convert to strequal()
confile_utils: convert to strequal()
file_utils: convert to strequal()
freezer: convert to strequal()
lsm: convert to strequal()
lxccontainer: convert to strequal()
seccomp: convert to strequal()
utils: convert to strequal()
start: rework namespace preservation and path creation for hooks
network: expose namespace fd paths to network hooks
start: fix error handling and improve comment
start: improve namespace preservation
start: improve comments
start: improve comment in lxc_spawn()
start: fix comment about time namespace preservation
cgroups: move cgns_supported() to cgroup utilities
conf: don't pass conf separately to lxc_mount_auto_mounts()
cgroups: pass handler to cgroup mount() method
cgroups: verify that we are actually running in cgroup namespace
cgroups: improve cgroup mounting
utils: add development helper to quickly dump a directories contents
cgroups: make clear that a flag argument is passed to cgroup mount functions
cgroups: don't strip LXC_AUTO_CGROUP_FORCE
cgroups: switch to flag-based checking
conf: remove wrong comment
cgroups: s/cg_mount_in_cgroup_namespace()/cgroupfs_mount()/g
cgroups: s/cg_mount_cgroup_full()/cgroupfs_bind_mount()/g
cgroups: fix flag checking in legacy mount paths
cgroups: strip LXC_AUTO_CGROUP_MIXED and LXC_AUTO_CGROUP_FULL_MIXED when cgroup namespaces are supported and used
cgroups: s/__cg_mount_direct()/__cgroupfs_mount()/g
cgroups: log early return
cgroupfs: rework cgroup2 mounting
confile: use set_config_path_item() for most cgroup layout modifiers
confile_utils: normalize paths in config items
confile: forbid walking upwards for confile items that modify cgroup layout
confile: forbid absolute paths in config items that modify the cgroup layout
cgroups: s/cg_init()/__cgroup_init()/g
cgroups: stash host's cgroupfs file descriptor
cgroups: better document stashed file descriptors
cgroups: rework add_hierarchy()
cgroups: rework base cgroup parsing
cgroups: fail when no cgroup hierarchies are found
cgroups: stash fds for the controller mountpoint and base cgroup path
cgroups: fd-based only cgroup creation
cgroups: rework legacy cpuset handling
cgroups: improve logging
string_utils: handle empty strings in must_make_path()
cgroups: allow "" base cgroup paths
cgroups: fix fd leaks
cgroups: rework how hierarchies are added
namespace: add missing \0 terminator
cgroups: prevent double-close
file_utils: move dup_cloexec() to header
cgroups: fd-only cgroup tree pruning
cgroups: remove obsolote cgroup_tree handling
cgroups: s/openat()/open_at()/g
cgroups: check correct variable
cgroups: rework unified controller delegation
start: delegate than move into the target cgroup
cgroups: reorder function arguments
cgroups: remove obsolote check
cgroups: rework cgroup tree removal on creation failure
cgroups: ensure leaf cgroup is correctly pruned on creation failure
cgroups: rework cgroup tree creation
cgroups: be stricter when creating payloads
cgroups: don't rely on absolute path
cgroups: don't move pivot cgroup under the monitor's cgroup
cgroups: ensure we don't remove cgroups we didn't create
cgroups: ensure we prune the limit dir
cgroups: simplify mount opening
cgroups: prevent NULL pointer deref
cgroups: log intermediate cleanup
cgroups: distinguish between tmpfs and unified based cgroup layouts file descriptors
cgroups: ensure that cgroup_root is initialized in legacy codepaths
cgroups: prevent cgroup mount type overwrite
cgroups: validate that only a single cgroup mount type is set
conf: use brackets to clarify check semantics
cgroups: use non-flag based checking now that we switched all codepaths over
cgroups: create controller directories if missing
cgroups: make it extremely obvious that we're transitioning from a flag to a type
cgroups: don't overwrite type
cgroups: fix error values
utils: fix print_r() debugging helper
cgroups: free correct path
cgroups: kill monitor_full_path
bpf: use cgroup fd directly instead of paths
conf: introduce lxc_bpf_devices_rule_t type
bpf: use return macros
bpf: align struct initialization
bpf: enable helpers to let caller replace existing bpf programs
cgroups: make device cgroups semantics clearer
cgroups: improve bpf device program handling
bpf: add helpers for better bpf device program management
cgroups: improve bpf device program management
commands: improve bpf device program management
commands: replace bpf program on update
macro: add swap helper
bpf: use __u32 not uint32_t
bpf: don't close invalid fd, simply swap
commands: rework bpf devices BPF_F_REPLACE codepath
bpf: rework bpf_program_cgroup_detach()
bpf: handling missing defines
bpf: vendor bpf headers
cgroups: remove compile-time bpf support detection
bpf: add and use bpf_cgroup_devices_attach() helper
bpf: let bpf_list_add_device() take the device list directly
bpf: fix return values in bpf_program_cgroup_attach()
compiler: fix fallthrough attribute
bpf: rework live device cgroup update
lxccontainer: fix reboot logging
memory_utils: add close_equal() and free_equal()
cgroups: use close_equal() and free_equal()
bpf: prevent double-close
bpf: make bpf_program_cgroup_attach() static
bpf: simplify bpf (device) program freeing
conf: use saner mode for console
start: fix non-daemonized and application containers
conf: don't log garbage
apparmor: clean up apparmor_process_label_get
apparmor: prefer /proc/.../attr/apparmor/current over legacy interface
file_utils: allow fd_to_buf() to fail for real
lsm: twek apparmor_process_label_get()
cgroups: ensure no garbage is returned
cgroups: make device cgroup handling smarter and simpler
commands: only update bpf device program if really needed
bpf: comment bpf_cgroup_devices_update()
bpf: fix typos
conf: improve lxc_clear_cgroups()
conf: expose lxc_clear_cgroup2_devices()
cgroups: tweak bpf_device_cgroup_prepare()
bpf: update device cgroup semantics
doc: add missing ".[controller file] suffix to lxc.cgroup{2}. key explanations
doc: epxlain eBPF-based device controller semantics
doc: tweak cgroup headline
string_utils: move lxc_iterate_parts()
cgroups: fix prune_init_scope()
cgroups: avoid additional variable for single access
cgroups: s/must_copy_string()/strdup()/g
cgroups: tweak lxc.cgroup.use handling in __cgroup_init()
cgroups: tweak return values
cgroups: simplify current cgroup retrieval on pure unified cgroup layouts
cgroups: s/basecginfo/cgroup_info/g
compiler: add likely() and unlikely() support
macro: add pointer error encoding support
memory_utils: adapt to new pointer error macros
cgroups: split out unified cgroup helpers
cgroups: rework cgroup initialization
cgroups: simplify string list handling
cgroups: split delegation checks into separate helpers
cgroups: s/add_hierarchy()/cgroup_hierarchy_add()/g
cgroups: remove unused helpers
cgroups: introduce cgroup hierarchy type
cgroups: simplify and fix mounting on non-cgroup namespace aware kernels
cgroups: rename cgroupfs mount fd
cgroups: s/container_base_path/at_base/g
cgroups: s/mountpoint/at_mnt/g
cgroups: s/cgfd_con/dfd_con/g
cgroups: s/cgfd_mon/dfd_mon/g
cgroups: s/cgfd_limit/dfd_lim/g
cgroups: s/container_full_path/path_con/g
cgroups: s/container_limit_path/path_lim/g
cgroups: move cgroup2 parameters into substruct
cgroups: s/cgroup2_chown/delegate/g
cgroups: improve utility controller handling
file_utils: tweak lxc_write_openat()
cgroups: fix cg_legacy_freeze() return type
cgroups: handle lxc.cgroup.use global parameter
memory_utils: fix close_equal()
cgroups: skip and warn about invalid file descriptors
cgroups: start stashing all fds
cgroups: close dfd_mon but keep dfd_con and dfd_lim open for all cgroup hierarchies
commands: explicitly number enums
commands: tweak validate_string_request()
af_unix: improve SCM_RIGHTS file descriptor retrieval
cgroups: add cgroup_fds() helper
state: never return NULL from lxc_state2str()
commands: be more explicit during command processing
commands: introduce lxc_cmd_rsp_send_reap()
commands: introduce rsp_one_fd()
commands: introduce rsp_many_fds()
commands: add LXC_CMD_GET_CGROUP_FD
cgroups: allow cgroup fd batch retrieval
macro: add min() macro
utils: add copy_struct_from_client()
log: add syswarn_set()
utils: add copy_struct_to_client()
commands: introduce LXC_CMD_GET_CGROUP_CTX
cgroups: introduce fd-only cgroup attach
commands: send ENOSYS response
commands: handle older clients elegantly
commands: lxc_cmd_add_state_client_callback()
attach: fix unsupported namespaces
af_unix: add comment about cast
attach: remove additional newline
commands: handle older clients gracefully
commands: verify expected file descriptors were sent
attach: fix namespace preservation
terminal: dumb logging down
attach: make fd sending more uniform
attach: handle new and old clients
commands: handle old clients for LXC_CMD_GET_CGROUP_CTX
commands: only deref once
af_unix: prevent oob writes
cgroups: fix error checking
commands: remove faulty use of access attribute
cgroups: fix braino during controller list creation
attach: be paranoid about file descriptors
cgroups: simple variable reordering
error_utils: move error helper to separate header
commands: tweak return values
error_utils: copy over Lennart's IN_SET()
cgroups: make use of ERRNO_IS_NOT_SUPPORTED()
cgroups: handle fallback gracefully
commands: fix alignment for lxc_cmd_get_cgroup_ctx()
commands: simplify lxc_cmd_get_cgroup_ctx()
commands: s/LIMITING/LIMIT/g and s/limiting/limit/g
commands: add LXC_CMD_GET_CGROUP_FD and LXC_CMD_GET_LIMIT_CGROUP_FD
cgroups: s/cgroup_layout/layout/g
commands: set rsp.ret to 0 for lxc_cmd_get_cgroup_ctx_callback()
file_utils: actually open the file for reading
commands: extend rsp_one_fd() to also handle additional data
commands: add LXC_CMD_GET_CGROUP_FD and LXC_CMD_GET_LIMIT_CGROUP_FD
commands: s/LXC_CMD_CONSOLE/LXC_CMD_GET_TTY_FD/g
commands: annotate array argument
commands: ensure that non-NULL and MAX_STATE is always passed
commands: use IN_SET() in lxc_cmd()
commands: switch to bool
commands: s/lxc_cmd_init()/lxc_server_init()/g
commands: add lxc_cmd_init() and lxc_cmd_data()
commands: port lxc_try_cmd() to new helpers
commands: port lxc_cmd_get_init_pid() to new helpers
commands: port lxc_cmd_get_init_pidfd() to new helpers
commands: port lxc_cmd_get_devpts_fd() to new helpers
commands: port lxc_cmd_get_seccomp_notify_fd() to new helpers
commands: port lxc_cmd_get_cgroup_ctx() to new helpers
commands: port lxc_cmd_get_clone_flags() to new helpers
commands: portlxc_cmd_get_cgroup_path_do() to new helpers
commands: port lxc_cmd_get_config_item() to new helpers
commands: port lxc_cmd_get_state() to new helpers
commands: port lxc_cmd_stop() to new helpers
commands: port lxc_get_tty_fd() to new helpers
commands: port lxc_cmd_get_name() to new helpers
commands: port lxc_cmd_get_lxcpath() to new helpers
commands: port lxc_cmd_add_state_client() to new helpers
commands: port lxc_cmd_add_bpf_device_cgropu() to new helpers
commands: port lxc_cmd_console_log() to new helpers
commands: port lxc_cmd_serve_state_clients() to new helpers
commands: port lxc_cmd_seccomp_notify_add_listener() to new helpers
commands: port lxc_cmd_freeze() to new helpers
commands: port lxc_cmd_unfreeze() to new helpers
commands: port lxc_cmd_get_cgroup_fd() to new helpers
commands: port lxc_cmd_get_limit_cgroup_fd() to new helpers
commands: port lxc_cmd_get_cgroup2_fd() to new helpers
commands: port lxc_cmd_get_limit_cgroup2_fd() to new helpers
commands: let lxc_cmd() return ssize_t to indicate that it returns not just 0 on success
macro: add hweight*() helpers
af_unix: allow caller and callee to negotiate expectations and reality
commands: rework lxc_cmd_rsp_recv() to make it more obvious
commands: improve lxc_cmd_get_tty_fd()
tests: add logging to lxc-test-lxc-attach
log: add some more log and return helpers
commands: use debug logging
commands: port misnamed functions to general style
commands: cleanup error handling and variable naming
commands: rsp_one_fd_{reap,keep}() and rsp_many_fds_reap()
commands: fix indentation
commands: unify fd retrieval commands
tree-wide: s/syerrno_set()/syserror_set()/g
tree-wide: start replacing instances of syserrno() with syserror()
tree-wide: replace remaining instances of syserrno() with syserror_ret()
log: mark logging helpers to use
tree-wide: use new logging helpers
tree-wide: replace old systrace logging helpers
tree-wide: replace old-style sysinfo logging return helper
network: make callback naming consistent and understandable
network: fix coding style in lxc_create_network_unpriv_exec()
confile_utils: ensure memory is zeroed
network: fix grammar
network: add lxc_network_info struct
network: handle name collisions when renaming network devices
network: use two passes through networks
af_unix: vet all parameters
start: fix whitespace error
cgroup: do not fail if there are no writable heirarchies
attach_options: explicitly number enums
attach_options: fix whitespace error in LXC_ATTACH_NO_NEW_PRIVS
attach_options: add explicit defines for all enums
start: handle CLONE_PIDFD on arm64
conf: tweak comment about transient procfs mount
conf: simplify dependent mount logic
conf: ensure that procfs and sysfs are unmounted
conf: cleanup automounting
conf: simplify logging in lxc_mount_auto_mounts()
conf: add missing newline in lxc_mount_auto_mounts()
cgroups: ignore unused controllers
macro: define __aligned_u64 to handle kernels without such support
Switch to Github actions
github: Fix invalid syntax for coverity
rexec: don't close stderr
string_utils: provide a version of strchrnul() in case it's not available
include: fix typo
configure: fix strchrnul conditiona compilation
strchrnul: ignore increased required alignment warning
strchrnul: fix copy-paste braino
confile_utils: don't free netdev twice
conf: fix a memory leak
ci: turn on CIFuzz
confile: fix set_config_sysctl()
conf: reinitialize sysctl list after clearing it
confile_utils: delete netdev from list
list: add lxc_list_new() helper
confile: use lxc_list_new() everywhere
conf: use lxc_list_new() everywhere
oss-fuzz: make it possible to build the fuzzer without docker
network: handle name collisions when returning physical interfaces to host
fuzz: create tmpfiles in /tmp
README: add OSS-Fuzz/CIFuzz badges
fuzz: generate all the config keys and add them to the seed corpus
log: dont create log file for fuzz builds
log: don't create directories for fuzz builds
log: handle empty log name
confile: be stricter in config helpers
confile: don't leak memory when overwriting lxc.rootfs.options
confile_utils: fix real-time signal parsing
conf: prevent UAF in lxc_clear_limits()
confile_utils: improve network parser
string_utils: fix parse_byte_size_string()
log: avoid regressions for relative log paths
conf: don't leak list
confile: fix setting prlimits
confile: fix returns in set_config_net_veth_vlan_tagged_id()
string_utils: always memset buf in lxc_safe_int64_residual()
conf: reinitialize lists
confile_utils: free network list items
conf: coding style cleanups
confile: make string calculations in get_network_config_ops() more obvious
confile: use correct check for too large network lists
confile: improve network vetting
confile: fix a memory leak in set_config_net_hwaddr
confile: prevent recursion when parsing networks
ci: turn on ASan on CIFuzz
confile_utils: free list during lxc_remove_nic_by_idx()
confile: add missing prefix validation
confile: don't leak memory in case multiple shmounts are set
confile_utils: fix a signed integer overflow
oss-fuzz.sh: take SANITIZER into account
cifuzz: turn on UBsan
string_utils: handle overflow correct in parse_byte_size_string()
cifuzz: turn on MSan
string_utils: work around an MSan false positive
confile: safely clean previous value in set_config_net_ipv6_gateway()
confile: safely clean previous value in set_config_net_ipv4_gateway()
confile: vet keys more aggressively
confile: clear netdev on network type change
confile: cleanup set_config_net_hwaddr()
confile: cleanup set_config_net_mtu()
confile: cleanup set_config_net_script_up()
confile: cleanup set_config_net_script_down()
tests: fix two false negatives in parse_config_file()
tests: add another test for garbage config key
conf: fix thread_local support detection
lxccontainer: ensure second parameter to bsearch is never NULL
oss-fuzz.sh: put the "lxc.net" keys in the seed corpus as well
compiler: fix thread_local detection
autotools: remove --enable-{asan,ubsan} in favor of --enable-sanitizers
README: remove Travis and add Github actions badge
doc: Documented that net type field must come before other options on the net device
ci: stop passing --enable-ubsan
oss-fuzz.sh: get rid of the sed "no-undefined" kludge
ci: also build with ASan/UBsan
ci: enable PAM
build-system: make it compatible with ASan/UBsan/MSan
oss-fuzz: reject giant configs early
confile: don't jump into the global table twice
string_utils: switch to path_simplify()
confile: cap to last bit in set_config_net_ipv4_address()
oss-fuzz: fuzz lxc_config_define_add and lxc_config_define_load
confile: fix a memory leak lxc_config_define_add
cifuzz: fuzz longer
lxc_user_nic: cleanup append_alloted()
lxc_user_nic: cleanup get_alloted()
string_utils: move to lxc-copy() sources
string_utils: ensure that errno is set on return
string_utils: use restrict for lxc_safe_int64_residual()
confile: simplify get_network_config_ops()
confile: fix lxc.namespace.share.[identifier]
confile: complain when LXC is built without selinux support
confile: complain when LXC is built without AppArmor support
conf: fix setups where /dev is outside of LXC's control
log: ensure we always return negative errno
templates/*.in: fixed PATH handling with spaces
macro: ensure ret_errno() always returns negative
log: add error_ret()
confile: enforce maximum subkey length
github: Try to fix action naming
confile: make lxc_get_config() and lxc_get_config_net() always return non-NULL
tests: fix a memory leak in cgpath
tests: fix a memory leak in lxcpath
tests: fix a memory leak in cgpath
tests: fix a memory leak in attach
tests: switch to the "busybox" template in lxc-test-checkpoint-restore
tests: stop cutting off right square brackets in share_ns
tests: pass on ASAN/UBSAN options to several tests
conf: simplify idmaptool_on_path_and_privileged()
conf: don't report success when idmaptools lack all privilege
attach: don't return early when calculating namespaces via pidfd
Revert "rexec: mark all fds as close-on-exec if possible"
apparmor: turn bytes into null-terminated strings before calling strcspn
ci: an attempt to run the tests under ASan/UBsan
ci: link lib[au]san with init.lxc.static statically
ci: switch to lxc-exercise from the lxc-ci repository
ci: get around https://github.com/lxc/lxc/issues/3798
ci: get around https://github.com/lxc/lxc/issues/3788
ci: prevent lxc-exercise from running indefinitely
ci: get around https://github.com/lxc/lxc/issues/3796
ci: turn on strict_string_checks
ci: build with -Wall -Werror
Revert "ci: get around https://github.com/lxc/lxc/issues/3796"
tests: free the buffer filled by lxc_cmd_rsp_recv
ci: make use of --enable-sanitizers instead of CFLAGS
autoconf: add AC_LANG_SOURCE to CC_CHECK_LDFLAGS
build-system: stop building init.lxc.static with sanitizers
ci: get rid of the -static-libasan stopgap
autoconf: stop passing -fsanitize=address via AM_LDFLAGS
lxccontainer: fix container creation error paths
seccomp: init and destroy notifier.cookie
error_utils: add missing macro.h include
configure: fix sanitizer compilation
process_utils: free stack after return
commands: don't needlessly allocate
conf: rework lxc specific mount option parsing
conf: add first, trivial support for idmapped mounts
confile: parse idmap= mount option for rootfs
mount_utils: add support for mount_setattr() syscall
storage: keep a reference to lxc_rootfs in lxc_storage
mount_utils: add helper to determine whether new mount api supports bind mounts
conf: support idmapping directories
mount_utils: add two detached mount helpers
start: documented idmapped mounts
conf: verify that the rootfs can support idmapped mounts
attach: visually separate pids from fds during initalization
attach: use correct lxc_namespace_t type
apparmor: handle on-exec
conf: tweak parse_lxc_mntopts()
conf: don't allow idmapped lxc.mount.{entry,fstab} just yet
strchrnul: include header
conf: include strchrnul for platforms that don't support it
Makefile: fix strchrnul() inclusion
getsubopt: use correct include
conf: better naming
conf: don't overrun dest buffer in parse_lxc_mntopts()
dir: fix rootfs mounting
configure: fix function detection
conf: stash lxc_storage into lxc_rootfs and bind to its lifetime
conf: move all mount options into struct lxc_mount_options
conf: s/lxc_rootfs_prepare/lxc_rootfs_init/g
conf: improve idmapped mounts support
build-system: add --enable-fuzzers
ci: switch to --enable-fuzzers
log: create log files in "fuzzing" mode if it's called outside fuzz targets
tests: run the fuzzers along with the other tests
build-system: turn off lto=thin when building the fuzzers
dir: use mnt_opts->data instead of mntdata
storage/dir: bdev->dest can't be empty
storage/dir: use clear error messages
storage/dir: retrieve proper source path later
storage/dir: use "source" and "target" as terms
storage/dir: source can't be empty
storage/dir: remove error handling down
storage/dir: cleanup mount code
api-extensions: add entry for idmapped_mounts
storage: fix dup_cloexec() call
oss-fuzz: always turn off logging on OSS-Fuzz
cgroups: fix fallback attach codepath
conf: fix console chmod error log messages
lxc_monitord: remove monitord log
github: Run apt-get update in sanitizer test
github: remove the dh-* packages
github: also pass the j option to make
string_utils: get around GCC-11 false positives
confile: make per_name struct static
commands: log at debug not info level when receiving file descriptors
syscalls: wrap personality syscall if undefined
tree-wide: make personality codepaths unconditional
conf: tweak setup_personality()
conf: rework lxc_config_parse_arch()
attach_options: unbreak header
conf: add personality_t
attach: introduce explicit personality macro
oss-fuzz: add basic cgroup_init()/cgroup_exit() fuzzing
conf: handle kernels with CAP_SETFCAP
doc: document new idmap= option for lxc.rootfs.options
Skip rootfs pinning for ZFS roots.
Reflow ZFS check to follow the style of the overlayfs return.
confile: re-add aarch64 architecture
tests: add tests for supported architectures
tests: fix lxc-test-arch-parse for make dist
cgroups: clean up cgroup_ops on initialization error
conf: allow xdev when setting up /dev
conf: don't unmount procfs and sysfs
conf: tweak rootfs handling
start: move idmapped mount setup later
tree-wide: s/parse_mntopts/parse_mntopts_legacy/
conf: rename struct mount_opt flag member s/flag/legacy_flag/
Skip rootfs pinning for read-only file system.
conf: support idmapped lxc.mount.entry entries
conf: add sequence when setting up idmapped mounts
confile: free mount data
conf: fix mount option parsing
cgroups: rework check whether legacy hierarchy is writable
conf: move file descriptor synchronization with child into single function
conf: move file descriptor synchronization with parent into single function
conf: use explicit signage in bit field
start: use barrier instead of wake/wait pair
start: reorder START_SYNC_POST_CONFIGURE
start: simplify startup synchronization
README: Update IRC
network: please broken compilers
Update lxc-net to support nftables
lxc: add lpthread to lxc.pc
lsm/apparmor: actually report an error when we fail to wire AppArmor profile
tools/lxc_autostart: fix failed count
api_extensions: introduce idmapped_mounts_v2 api extension
string utils: Make sure don't return uninitialized memory.
Add support for LISTEN_FDS environment variable.
common.conf: replace problematic terminology
seccomp: replace problematic terminology
tree-wide: remove problematic terminology
tree-wide: replace problematic terminology
tree-wide: replace problematic terminology
tree-wide: replace problematic terminology
cgroups: use stable ordering for co-mounted v1 controllers
When an item is added to an array, then the array is realloc()ed (to size+1), and the item is copied (strdup()) to the array. Thus, when an item is removed from an array, memory allocated for that item should be freed, successive items should be left-shifted and the array realloc()ed again (size-1).
Resize array in remove_from_array() and fix a crash
lxc-download: Switch GPG server
cgroups: verify that hierarchies are non-empty
When an item is added to an array, then the array is realloc()ed (to size+1), and the item is copied (strdup()) to the array. Thus, when an item is removed from an array, memory allocated for that item should be freed, successive items should be left-shifted and the array realloc()ed again (size-1).
execute: don't exec init, call it
initutils: use vfork() in lxc_container_init()
network: log network devices while sending
execute: ensure parent is notified about child exec and close all unneeded fds
initutils: close dirfd in error path
conf: improve read-only /sys with read-write /sys/devices/virtual/net
tests: add tests for read-only /sys with read-write /sys/devices/virtual/net
cgroups: handle funky cgroup layouts
terminal: ensure newlines are turned into newlines+carriage return for terminal output
cmd/lxc-checkconfig: list cgroup namespaces and rename confusing ns_cgroup entry
doc: Add eBPF-based device controller semantics to Japanese man page
doc: Append description of net type field
doc: Add new idmap= option to Japanese lxc.container.conf(5)
doc: Fix typo in English lxc.container.conf(5)
conf: userns.conf: include userns.conf.d
confile: allow including nonexisting directories
lxc_unshare: make mount table private
lxc_unshare: fix network device handling
Fix typo on documentation for lxc-autostart.
Fix typo on documentation for lxc-{attach,execute}.
Create rules to add/remove symlinks for bash completion.
Improve bash completion.
file_utils: surface ENOENT when falling back to openat()
doc/common_options: add trace and alert loglevels
initutils: include pthread.h
start: fix logging message
sync: fix log message
terminal: log TIOCGPTPEER failure less alarmingly
af_unix: report error when no fd is to be sent
terminal: fix error handling
cgroups: populate hierarchy for device cgroup
cgroups: remove unneeded variables from cgroup_tree_create
lxc_setup_ttys: Handle existing ttyN file without underlying device
bpf: bpf_devices_cgroup_supported() should check if bpf() is available
conf: use new mount api for devpts setup
terminal: ttyname_r() returns an error number on failure
conf: ensure devpts_fd is set to -EBADF
Fix typos
conf: surface failures to setup console
conf: set source property for devpts
conf: attach devpts mount directly when new mount api can be used
conf: s/lxc_setup_devpts_parent/lxc_recv_devpts_from_child/g
conf: use a relative path in symlinkat()
conf: update comment
conf: add and use mount_beneath_fd()
terminal: don't use ttyname_r() for native terminal allocation
conf: merge devpts setup and move before pivot root
string_utils: cast __s64 to long long signed int
terminal: split out lxc_devpts_terminal() helper
conf: move lxc_create_ttys() before pivot root
conf: stash pty_nr in struct lxc_terminal
mount_utils: add mount_fd()
conf: use mount_fd() helper when mounting ttys
conf: use mount_fd() in lxc_setup_dev_console()
conf: use mount_fd() during console mounting
file_utils: add open_at_same()
conf: rework console setup
terminal: remove unused argument from lxc_devpts_terminal()
start: allow containers to use a native console
conf: handle kernels without TIOCGPTPEER
terminal: move native terminal allocation from error logging to info
terminal: fail on unknown error during TIOCGPTPEER
mount_utils: introduce mount_at()
conf: fix logging in lxc_idmapped_mounts_child()
conf: refactor lxc_recv_ttys_from_child()
conf: log failure to create tty mountpoint
conf: let parse_vfs_attr() handle legacy mount flags as well
mount_utils: make some mount helpers static inline
conf: allow mount options for rootfs when using new mount api
tests: add test for rootfs mount options
network: fix container with empty network namespaces
lsm/apparmor: log failure to write AppArmor profile
lsm/apparmor: use cleanup macro
doc/api-extensions: Grammar fix
cgroups: log at warning instead of error level
conf: log session keyring failure on WARN level
tree-wide: s/lxc_epoll_descr/lxc_async_descr/g
doc: Adds mention of ability to specify manual IPv4 broadcast address
mainloop: add io_uring support
lxc-download: add LXC version/compat level to user-agent
mainloop: s,sys/poll,poll
mainloop: minor fixes
mainloop: remove CANCEL_RAISE flag
mainloop: fix io_uring cleanup handling
memory_utils: make cleanup handler as unused
mainloop: move variables into tighter scope
mainloop: s/handler_name/name/g
mainloop: add comments about multishot and oneshot cleanup
mainloop: disable IORING_SETUP_SQPOLL for now
cgroups: fix cpu bitmasks
cgroups: s/calloc/zalloc/g
Revert "cgroups: fix cpu bitmasks"
cgroups: fix comments in cpuset1_initialize()
cgroups: fix cpumask handling
cgroups: use semantically clean check in cpuset1_cpus_initialize()
cgroups: simplify offline and isolated cpu handling
tests: set lxc-test-automount/createconfig/snapdeps as executable
file_utils: add same_device() helper
terminal: use /dev/ptmx when allocating pty devices from devpts instances we didn't mount ourselves
busybox: mount sys:ro
busybox: simplify
conf: allow for tty allocation even when container did not request separate devpts instance
tests: fix order in sys_mixed
test: use busybox in lxc-test-apparmor-generated
test: use busybox in lxc-test-apparmor-mount
test: use busybox in lxc-test-autostart
tests: use busybox in lxc-test-no-new-privs
tests: use busybox in lxc-test-unpriv
tests: use busybox in lxc-test-usernic.in
seccomp: fix complication when !HAVE_DECL_SECCOMP_NOTIFY_FD
config: enable seccomp profile only when compiled with libseccomp
confile: return negative errno everywhere
attach: allow LSM attach without new mnt namespace
tools: fix variable declarations in lxc-attach
tools: align struct initialization
attach_options: add LXC_ATTACH_LSM_LABEL to LXC_ATTACH_LSM flags
confile: rework lxc_fill_elevated_privileges()
tools: fix elevated privilege handler in lxc-attach
list: add new kernel-based list implementation
tree-wide: port network handling to new list type
cgroups: port bpf devices to new list type
mainloop: port handlers to new list type
conf: port state_clients to new list type
conf: port rlimits to new list type
conf: port sysctls to new list type
conf: port procs to new list type
conf: port cgroup settings to new list type
conf: port id_map to new list type
conf: remove unused mountflags nember
rootfs: remove "options" member
conf: rework recursive mount option handling
conf: support recursive propagation options properly
conf: switch to parse_mount_attrs() even for legacy mount()
conf: remove unused variables
conf: port environment to new list type
terminal: remove unused struct member
cgroup: remove unneeded forward declaration
conf: simplify and port caps to new list type
network: port ipv4 to new list type
network: port ipv6 addresses to new list type
tree-wide: s/ipv{4,6}_list/ipv{4,6}_addresses/g
lxccontainer: align initialization
cgroups: fix cgroup settings sorting
network: port ipv4 routes to new list type
network: port ipv6 routes to new list type
cgroups: fix bpf device list
conf: port mounts to new list type
conf: port apparmor to new list type
conf: port hooks to new list type
conf: port groups to new list type
lxccontainer: improve add_to_array()
lxccontainer: improve add_to_clist()
lxccontainer: tweak some array handling helpers
attach: Fix -c command
tree-wide: fix list_entry()
lxc-usernsexec: small tweaks
lxccontainer: use free_disarm() in list_all_containers()
lxccontainer: remove useless {}
lxccontainer: fail when container can't be loaded
lxccontainer: don't pass NULL pointer
configure: add sanitizer flags to LDFLAGS as well
include: make all functions __hidden
tree-wide: fix build
build: add src/include to build and simplify header inclusions
syscall_wrapper: fix pivot_root() declaration
cgroups: fix integer comparisons
confile: fix integer comparisons
storage: fix integer comparisons
attach: fix helper declarations
lsm: fix integer comparisons
conf: fix integer comparisons
string_utils: fix integer comparisons
conf: fix struct mount_attr initalization
conf: fix array initalization
tree-wide: fix attach header inclusion
confile_utils: fix integer comparisons
criu: fix integer comparisons
commands: fix integer comparisons
tree-wide: fix public lxc header inclusions
network: fix integer comparisons
lxccontainer: fix integer comparisons
terminal: fix integer comparisons
utils: fix integer comparisons
start: fix integer comparisons
netns_ifaddrs: fix integer comparisons
lxcmntent: fix fallthrough
seccomp: fix integer comparisons
uuid: fix integer comparisons
nl: fix integer comparisons
monitor: fix integer comparisons
file_utils: fix integer comparisons
commands_utils: fix integer comparisons
arguments: fix includes
string_utils: fix includes
conf: fix includes
initutils: fix includes
log: fix includes
initutils: fix includes
arguments: fix includes
tools/lxc_start: fix includes
caps: fix includes
tree-wide: fix lxc header inclusion
tools: fix build warnings
tree-wide: fix config.h inclusion
tests: include "version.h"
lxc: remove "version.h" inclusion
build: make sure _GNU_SOURCE is set
build: add meson skeleton
build: add tools to meson
Fill missing commands on name completion.
Use --running instead of --active.
Add compopt call to __lxc_piped_args.
Improve name completion handling.
Add completion output for lxc-ls --fancy-format.
Add support for container composed names.
Use more bash-like syntax.
Fix lxc-snapshot completion.
Refactor __lxc_piped_args.
Add support for comma as a completion word.
Fix lxc-create completion.
Another round of more bash-like syntax.
Refactor __lxc_groups() to __lxc_get_groups().
Add __lxc_get_selinux_contexts().
Add completion for lxc-copy param --fssize.
Update _lxc_usernsexec.
Add __lxc_cgroup_state_object().
Check completion for prefixes names.
Refactor __lxc_check_name_present().
Fix lxc-cgroup smart completion.
build: set pie in default_options
build: set as-needed in default_options
build: use dependency() where possible
build: -fPIC and -shared are handled automatically
build: set find_library('libcap', require : false)
build: libdir and bindir are the default for shared libraries and executables
build: use common dependencies variable
build: remove unneeded variables
build: add single option directly to static library
build: set diagnostic colours directly in default_options
build: add more global config variables
build: set more variables and print summary
log: fix cross-compilation with %m modifier
tests: fix config file tests
build: remove pointless prefixdir validation
build: use correct minimal meson version requirement
build: record meson version
build: show more detailed information
build: ensure all relevant calls are checked for availability at build time
network: fix integer comparisons
cgroups: fix declarations and headers
build: support lto
tools: use correct include for Android
Don't include internal headers in external library headers
build: fix hook program build
build: fix tools build
hooks: use cloexec everywhere
build: split netns_ifaddrs into separate sources
build: add commands
build: expand default_options
build: use dummy config data
build: improve meson build
build: build hooks directly in their folder
build: add hooks
build: add cmd builds
lxc-monitord: use {} around ;
cmds: fix integer conversions
cmds: fix includes
tree-wide: fix HAVE_* checks
build: fix remaining HAVE_* generations
build: add templates
templates: don't double quote
hooks: fix quoting
build: check whether compiler supports nonnull and returns_nonnull attributes
github: Drop 16.04 tests
build: compiler attribute improvements
initutils: add missing prctl include
lxc: add lxc.sched.core
attach: handle core scheduling
tree-wide: cast to core scheduling cookie to llu
syscall_wrappers: fix core scheduling creation helper naming
start: don't fail when core scheduling isn't supported
start: use core scheduling error helper
start: make failure to apply core scheduling fatal
log: improve %m handling on musl
terminal: log at warning message
conf: fix lxc.cap.keep behavior
tests: add test for lxc.cap.keep
conf: improve capability handling
cgroups: use __u32 for cpumasks
tree-wide: use __u32 for capabilities
tests: expand capability tests
attach: improve error logging for drop_capabilities()
test: fix nested capability tests
criu: fix error message
af_unix: replace log_error_errno()
attach: improve error logging
caps: ensure \0-termination
conf: fix coding style
conf: don't fail umount2()
Add riscv64 to --arch parameter values
README.md: mention RISC-V architecture
conf: verify that rootfs is stable after setting up mounts
criu: support restoring containers with pre-created veth devices
conf: make it more obvious how auto-mount flags are defined
conf: add cgroup2, cgroup2:ro, cgroup2:force, cgroup2:ro:force options
Make number of rx and tx queues configurable for veths
doc: add loglevels to ja and ko common options
doc: add way to specify broadcast address to Japanese lxc.container.conf(5)
doc: Add lxc.sched.core to Japanese lxc.container.conf(5)
doc: fix typo in English lxc.container.conf(5)
conf: handle kernels without or not using SMT
AUTHORS: Update to point to git history
confile: don't use path_simplify() on lxc.{execute,init}.cmd
build: add static libcap to output
build: add io-uring-event-loop option
Replace 'which' with 'command -v'
mainloop: make sure that descr->ring is allocated
start: check event loop type before closing fd
Replace 'which' with 'command -v' in tests too
Replace deprecated backticks with $() construct
Replace last occurence of 'which' with 'command -v'
mainloop: make ifdefs easier to follow
build: improve liburing support detection
process_utils: add signal_name() helper
start: log signal name and number
build: move _FILE_OFFSET_BITS to common option
tests: include config.h
conf: apply /proc/sys and /proc// parameters
conf: improve logging setting sysctl and /proc// parameters
test: improve logging helpers
tests: add lxc.sysctls.* test
tests: add lxc.proc.* test
build: refuse to compile with unsupported liburing version
autotools: Avoid multiple liblxc.so with --enable-pam
macro: ensure necessary io_uring flags are defined
Revert "initutils: use vfork() in lxc_container_init()"
cgroups: fix compiler warning
api: ->save_config() doesn't need to create container dir
Revert "api: ->save_config() doesn't need to create container dir"
use 2 sysfs instances for sys:mixed
api-extensions: don't advertise seccomp notify support if it's not compiled in
seccomp: only guard seccomp notify behind HAVE_DECL_SECCOMP_NOTIFY_FD
seccomp: close seccomp notifier fd in cleanup handler
(trivial) Fix error message, failure was connect not bind
lxc-checkconfig.in: CONFIG_NF_NAT_IPV4 was removed from the kernel 2019-03-03
commands: log command during file descriptor retrieval
attach: don't pointlessly call cgroup_init()
Update README.md: Fix broken link (403 Forbidden)
lxc-download: Rely on HTTPS only
github: stop installing gnupg now that it's unused
conf: improve userns_exec_mapped_root()
conf: log termination status
lxccontainer: improve do_lxcapi_save_config()
lxccontainer: improve do_lxcapi_create()
lxccontainer: improve create_partial()
lxccontainer: simplify partial file creation
build: only enable LTO for regular builds
build: simplify thread local storage handling
lxccontainer: properly wrap lxcapi_create()
github: ensure system liblxc is wiped
github: log system info
github: more detailed compilation instructions
github: add systemd-coredump
github: Clear default ACL on /home
lxccontainer: allow xdev when creating the container dir
lxc-net: don't start by default inside lxc
lxc-checkconfig: Fix bashism
doc: Fix reverse allowlist/denylist
cgroups: check that opened file descriptor is a cgroup filesystem
cgroups: log fd of newly created cgroup
doc: Fix reverse allowlist/denylist in Japanese man page
ttys: ensure container_ttys= env variable is set correctly
cgroups: modify cgroup2 attach logic
lxc-checkconfig: Only check probed modules if /proc/modules exists
build: add tests to meson
tests: fix include statements
build: add more tests to meson
utils: add fastpath routine on mkdir_p function
tools: lxc-autostart: Reverse order on stop
lxc-net.in: fix failure executing dnsmasq
meson: Remove non-existent tests
meson: Cleanup build configs
meson: Install the test binaries
meson: Update run_command calls
meson: Fix unix epoch
Update MAINTAINERS file
meson: Get test binaries to match autotools
meson: Fix template installation location
meson: Fix internal binaries
meson: Add lxc-attach
meson: Fix library version
meson: Fix hook install locations
meson: Include headers
meson: Setup pkgconfig
meson: Include rootfs dir
meson: Include the /var paths
meson: Add bash completion
meson: Simplify pc handling
meson: Bump minimal version
meson: Use dependencies for pkgconfig
meson: Rework options
meson: Add doc examples
bash: rename main bash completion file
meson: Add global config
meson: Add SELinux configs
meson: Add common configs
meson: Add init helper scripts
meson: Re-organize dir variables
meson: Add remaining scripts
build: add pam_cgfs to meson
pam: fix compiler warnings
lxc_can_use_pidfd: don't log error if pidfds not supported, trace
meson_options: Move entries around
meson: Re-shuffle PAM
meson: Add tools option
meson: Only build tools when requested
meson: Add manpages
meson: Simplify if statements
meson: More flexible doc handling
meson: Make docbook2man required if user requested doc
meson: Rename want_io_uring
meson: Add init scripts
meson: Add sysconfig
meson: Add apparmor profiles
meson: Export LXC_DISTRO_SYSCONF
meson: Export more variables to doc
meson: Tweak config for manpages
meson: Rework configuration variables
meson: Add RPM spec
CODING_STYLE: add forgotten fallthrough
meson: Add coverity flag
meson: Cleanup and fix includes
meson: Skip static library when using sanitizer
meson: Don't include lxc-test-fuzzers
meson: Make lxc-user-nic setuid
meson: Fix RPM spec variables
meson: Add bionic detection
meson: Fix on shallow git trees
meson: seccomp is optional
meson: Always define HAVE_LIBURING
meson: Only build seccomp and selinux when needed
meson: Add missing prlimit include
meson: Add lxcmntent to unmount-namespace hook
lxc/rexec: Use HAVE_FEXECVE
meson: Fix mntent include condition
chore: Set permissions for GitHub actions
Remove autotools
meson: Add basic Makefile
doc: Update for meson
README: Update for meson
github: Update build test for meson
github: Update coverity workflow for meson
src: Don't use ifdef/defined for config.h
meson: Always defined IS_BIONIC
config: make lxc-{containers,net}.in executable
build: use liblxc_sources everywhere
build: add additional command line switches
build: lxc-init doesn't need to build the whole config infra
oss-fuzz: more meson options
github/workflows/build: install lvvm as well
github/workflows/build: add -Db_lto_mode=default
github/workflows/build: remove sanitizer build
github/workflows/cifuzz: ensure necessary paths are added
github/workflows: port all workflows to Ubuntu 22.04
github/workflows/sanitizers: port sanitizers builds to meson
github: Fix bad syntax in cifuzz
github: Fix compiler version task for coverity
chore: Included githubactions in the dependabot config
build(deps): bump actions/upload-artifact from 1 to 3
build: tweak build flags
build: fix build with various options turned off
build: add seccomp build option
build: add oss-fuzz switch
github/workflows/cifuzz: update to Ubuntu 22.04
build: separate oss-fuzz tests from regular test builds
oss-fuzz: handle dependencies
oss-fuzz: adapt options to oss-fuzz build
oss-fuzz: ensure binaries are zipped
oss-fuzz: cleanup build flags
build: use cc.links() to check for static libcap
build: support thread-safety enforcement as option
build: add missing memfd-rexec option
README: reflect meson in the documentation
build: map autotools options to meson options in meson_options.txt
meson: Fix bad strerror_r check

Support and upgrade¶

LXC 5.0 will be supported until June 2027 and our current LTS release, LXC 4.0 will now switch to a slower maintenance pace, only getting critical bugfixes and security updates.

We strongly recommend all LXC users to plan an upgrade to the 5.0 branch.

Downloads¶

Main release tarball: lxc-5.0.0.tar.gz
GPG signature: lxc-5.0.0.tar.gz.asc

Contributors¶

The LXC 5.0 release was brought to you by a total of 65 contributors.

Contents

LXC 5.0 LTS has been released

LXC 5.0 LTS has been released¶