mirror of
https://git.proxmox.com/git/mirror_lxc
synced 2025-08-06 03:36:04 +00:00
6586 lines
166 KiB
C
6586 lines
166 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE 1
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#endif
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#define __STDC_FORMAT_MACROS
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#include <arpa/inet.h>
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#include <ctype.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/utsname.h>
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#include <syslog.h>
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#include <time.h>
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#include <unistd.h>
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#include "af_unix.h"
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#include "conf.h"
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#include "config.h"
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#include "confile.h"
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#include "confile_utils.h"
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#include "netns_ifaddrs.h"
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#include "log.h"
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#include "lxcseccomp.h"
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#include "macro.h"
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#include "memory_utils.h"
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#include "network.h"
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#include "parse.h"
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#include "storage/storage.h"
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#include "utils.h"
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#ifndef HAVE_STRLCPY
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#include "strlcpy.h"
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#endif
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#ifndef HAVE_STRLCAT
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#include "strlcat.h"
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#endif
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lxc_log_define(confile, lxc);
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#define lxc_config_define(name) \
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__hot static int set_config_##name(const char *, const char *, \
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struct lxc_conf *, void *); \
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__hot static int get_config_##name(const char *, char *, int, \
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struct lxc_conf *, void *); \
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__hot static int clr_config_##name(const char *, struct lxc_conf *, \
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void *);
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lxc_config_define(autodev);
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lxc_config_define(autodev_tmpfs_size);
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lxc_config_define(apparmor_allow_incomplete);
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lxc_config_define(apparmor_allow_nesting);
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lxc_config_define(apparmor_profile);
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lxc_config_define(apparmor_raw);
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lxc_config_define(cap_drop);
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lxc_config_define(cap_keep);
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lxc_config_define(cgroup_controller);
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lxc_config_define(cgroup2_controller);
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lxc_config_define(cgroup_dir);
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lxc_config_define(cgroup_monitor_dir);
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lxc_config_define(cgroup_monitor_pivot_dir);
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lxc_config_define(cgroup_container_dir);
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lxc_config_define(cgroup_container_inner_dir);
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lxc_config_define(cgroup_relative);
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lxc_config_define(console_buffer_size);
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lxc_config_define(console_logfile);
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lxc_config_define(console_path);
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lxc_config_define(console_rotate);
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lxc_config_define(console_size);
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lxc_config_define(unsupported_key);
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lxc_config_define(environment);
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lxc_config_define(ephemeral);
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lxc_config_define(execute_cmd);
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lxc_config_define(group);
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lxc_config_define(hooks);
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lxc_config_define(hooks_version);
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lxc_config_define(idmaps);
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lxc_config_define(includefiles);
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lxc_config_define(init_cmd);
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lxc_config_define(init_cwd);
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lxc_config_define(init_gid);
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lxc_config_define(init_uid);
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lxc_config_define(init_groups);
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lxc_config_define(jump_table_net);
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lxc_config_define(keyring_session);
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lxc_config_define(log_file);
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lxc_config_define(log_level);
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lxc_config_define(log_syslog);
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lxc_config_define(monitor);
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lxc_config_define(monitor_signal_pdeath);
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lxc_config_define(mount);
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lxc_config_define(mount_auto);
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lxc_config_define(mount_fstab);
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lxc_config_define(namespace_clone);
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lxc_config_define(namespace_keep);
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lxc_config_define(time_offset_boot);
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lxc_config_define(time_offset_monotonic);
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lxc_config_define(namespace_share);
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lxc_config_define(net);
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lxc_config_define(net_flags);
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lxc_config_define(net_hwaddr);
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lxc_config_define(net_ipv4_address);
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lxc_config_define(net_ipv4_gateway);
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lxc_config_define(net_ipv6_address);
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lxc_config_define(net_ipv6_gateway);
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lxc_config_define(net_link);
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lxc_config_define(net_l2proxy);
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lxc_config_define(net_macvlan_mode);
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lxc_config_define(net_ipvlan_mode);
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lxc_config_define(net_ipvlan_isolation);
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lxc_config_define(net_mtu);
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lxc_config_define(net_name);
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lxc_config_define(net_script_down);
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lxc_config_define(net_script_up);
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lxc_config_define(net_type);
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lxc_config_define(net_veth_mode);
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lxc_config_define(net_veth_pair);
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lxc_config_define(net_veth_ipv4_route);
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lxc_config_define(net_veth_ipv6_route);
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lxc_config_define(net_veth_vlan_id);
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lxc_config_define(net_veth_vlan_tagged_id);
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lxc_config_define(net_vlan_id);
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lxc_config_define(no_new_privs);
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lxc_config_define(personality);
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lxc_config_define(prlimit);
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lxc_config_define(pty_max);
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lxc_config_define(rootfs_managed);
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lxc_config_define(rootfs_mount);
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lxc_config_define(rootfs_options);
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lxc_config_define(rootfs_path);
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lxc_config_define(seccomp_profile);
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lxc_config_define(seccomp_allow_nesting);
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lxc_config_define(seccomp_notify_cookie);
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lxc_config_define(seccomp_notify_proxy);
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lxc_config_define(selinux_context);
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lxc_config_define(selinux_context_keyring);
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lxc_config_define(signal_halt);
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lxc_config_define(signal_reboot);
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lxc_config_define(signal_stop);
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lxc_config_define(start);
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lxc_config_define(tty_max);
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lxc_config_define(tty_dir);
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lxc_config_define(uts_name);
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lxc_config_define(sysctl);
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lxc_config_define(proc);
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static int set_config_unsupported_key(const char *key, const char *value,
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struct lxc_conf *lxc_conf, void *data)
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{
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return syserror_set(-EINVAL, "Unsupported config key \"%s\"", key);
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}
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static int get_config_unsupported_key(const char *key, char *retv, int inlen,
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struct lxc_conf *c, void *data)
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{
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return syserror_set(-EINVAL, "Unsupported config key \"%s\"", key);
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}
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static int clr_config_unsupported_key(const char *key,
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struct lxc_conf *lxc_conf, void *data)
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{
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return syserror_set(-EINVAL, "Unsupported config key \"%s\"", key);
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}
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/*
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* Important Note:
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* If a new config option is added to this table, be aware that
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* the order in which the options are places into the table matters.
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* That means that more specific options of a namespace have to be
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* placed above more generic ones.
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*
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* For instance: If lxc.ab is placed before lxc.ab.c, the config option
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* lxc.ab.c will always be matched to lxc.ab. That is, the lxc.ab.c option
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* has to be placed above lxc.ab.
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*/
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static struct lxc_config_t config_jump_table[] = {
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{ "lxc.arch", true, set_config_personality, get_config_personality, clr_config_personality, },
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{ "lxc.apparmor.profile", true, set_config_apparmor_profile, get_config_apparmor_profile, clr_config_apparmor_profile, },
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{ "lxc.apparmor.allow_incomplete", true, set_config_apparmor_allow_incomplete, get_config_apparmor_allow_incomplete, clr_config_apparmor_allow_incomplete, },
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{ "lxc.apparmor.allow_nesting", true, set_config_apparmor_allow_nesting, get_config_apparmor_allow_nesting, clr_config_apparmor_allow_nesting, },
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{ "lxc.apparmor.raw", true, set_config_apparmor_raw, get_config_apparmor_raw, clr_config_apparmor_raw, },
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{ "lxc.autodev.tmpfs.size", true, set_config_autodev_tmpfs_size, get_config_autodev_tmpfs_size, clr_config_autodev_tmpfs_size, },
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{ "lxc.autodev", true, set_config_autodev, get_config_autodev, clr_config_autodev, },
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{ "lxc.cap.drop", true, set_config_cap_drop, get_config_cap_drop, clr_config_cap_drop, },
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{ "lxc.cap.keep", true, set_config_cap_keep, get_config_cap_keep, clr_config_cap_keep, },
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{ "lxc.cgroup2", false, set_config_cgroup2_controller, get_config_cgroup2_controller, clr_config_cgroup2_controller, },
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{ "lxc.cgroup.dir.monitor.pivot", true, set_config_cgroup_monitor_pivot_dir, get_config_cgroup_monitor_pivot_dir, clr_config_cgroup_monitor_pivot_dir, },
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{ "lxc.cgroup.dir.monitor", true, set_config_cgroup_monitor_dir, get_config_cgroup_monitor_dir, clr_config_cgroup_monitor_dir, },
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{ "lxc.cgroup.dir.container.inner", true, set_config_cgroup_container_inner_dir, get_config_cgroup_container_inner_dir, clr_config_cgroup_container_inner_dir, },
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{ "lxc.cgroup.dir.container", true, set_config_cgroup_container_dir, get_config_cgroup_container_dir, clr_config_cgroup_container_dir, },
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{ "lxc.cgroup.dir", true, set_config_cgroup_dir, get_config_cgroup_dir, clr_config_cgroup_dir, },
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{ "lxc.cgroup.relative", true, set_config_cgroup_relative, get_config_cgroup_relative, clr_config_cgroup_relative, },
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{ "lxc.cgroup", false, set_config_cgroup_controller, get_config_cgroup_controller, clr_config_cgroup_controller, },
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{ "lxc.console.buffer.size", true, set_config_console_buffer_size, get_config_console_buffer_size, clr_config_console_buffer_size, },
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{ "lxc.console.logfile", true, set_config_console_logfile, get_config_console_logfile, clr_config_console_logfile, },
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{ "lxc.console.path", true, set_config_console_path, get_config_console_path, clr_config_console_path, },
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{ "lxc.console.rotate", true, set_config_console_rotate, get_config_console_rotate, clr_config_console_rotate, },
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{ "lxc.console.size", true, set_config_console_size, get_config_console_size, clr_config_console_size, },
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{ "lxc.environment", true, set_config_environment, get_config_environment, clr_config_environment, },
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{ "lxc.ephemeral", true, set_config_ephemeral, get_config_ephemeral, clr_config_ephemeral, },
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{ "lxc.execute.cmd", true, set_config_execute_cmd, get_config_execute_cmd, clr_config_execute_cmd, },
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{ "lxc.group", true, set_config_group, get_config_group, clr_config_group, },
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{ "lxc.hook.autodev", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.clone", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.destroy", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.mount", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.post-stop", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.pre-mount", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.pre-start", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.start", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.start-host", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.stop", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.hook.version", true, set_config_hooks_version, get_config_hooks_version, clr_config_hooks_version, },
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{ "lxc.hook", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
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{ "lxc.idmap", true, set_config_idmaps, get_config_idmaps, clr_config_idmaps, },
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{ "lxc.include", true, set_config_includefiles, get_config_includefiles, clr_config_includefiles, },
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{ "lxc.init.cmd", true, set_config_init_cmd, get_config_init_cmd, clr_config_init_cmd, },
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{ "lxc.init.gid", true, set_config_init_gid, get_config_init_gid, clr_config_init_gid, },
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{ "lxc.init.groups", true, set_config_init_groups, get_config_init_groups, clr_config_init_groups, },
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{ "lxc.init.uid", true, set_config_init_uid, get_config_init_uid, clr_config_init_uid, },
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{ "lxc.init.cwd", true, set_config_init_cwd, get_config_init_cwd, clr_config_init_cwd, },
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{ "lxc.keyring.session", true, set_config_keyring_session, get_config_keyring_session, clr_config_keyring_session },
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{ "lxc.log.file", true, set_config_log_file, get_config_log_file, clr_config_log_file, },
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{ "lxc.log.level", true, set_config_log_level, get_config_log_level, clr_config_log_level, },
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{ "lxc.log.syslog", true, set_config_log_syslog, get_config_log_syslog, clr_config_log_syslog, },
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{ "lxc.monitor.unshare", true, set_config_monitor, get_config_monitor, clr_config_monitor, },
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{ "lxc.monitor.signal.pdeath", true, set_config_monitor_signal_pdeath, get_config_monitor_signal_pdeath, clr_config_monitor_signal_pdeath, },
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{ "lxc.mount.auto", true, set_config_mount_auto, get_config_mount_auto, clr_config_mount_auto, },
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{ "lxc.mount.entry", true, set_config_mount, get_config_mount, clr_config_mount, },
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{ "lxc.mount.fstab", true, set_config_mount_fstab, get_config_mount_fstab, clr_config_mount_fstab, },
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{ "lxc.namespace.clone", true, set_config_namespace_clone, get_config_namespace_clone, clr_config_namespace_clone, },
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{ "lxc.namespace.keep", true, set_config_namespace_keep, get_config_namespace_keep, clr_config_namespace_keep, },
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{ "lxc.namespace.share.", false, set_config_namespace_share, get_config_namespace_share, clr_config_namespace_share, },
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{ "lxc.time.offset.boot", true, set_config_time_offset_boot, get_config_time_offset_boot, clr_config_time_offset_boot, },
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{ "lxc.time.offset.monotonic", true, set_config_time_offset_monotonic, get_config_time_offset_monotonic, clr_config_time_offset_monotonic, },
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{ "lxc.net.", false, set_config_jump_table_net, get_config_jump_table_net, clr_config_jump_table_net, },
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{ "lxc.net", true, set_config_net, get_config_net, clr_config_net, },
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{ "lxc.no_new_privs", true, set_config_no_new_privs, get_config_no_new_privs, clr_config_no_new_privs, },
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{ "lxc.prlimit", false, set_config_prlimit, get_config_prlimit, clr_config_prlimit, },
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{ "lxc.pty.max", true, set_config_pty_max, get_config_pty_max, clr_config_pty_max, },
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{ "lxc.rootfs.managed", true, set_config_rootfs_managed, get_config_rootfs_managed, clr_config_rootfs_managed, },
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{ "lxc.rootfs.mount", true, set_config_rootfs_mount, get_config_rootfs_mount, clr_config_rootfs_mount, },
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{ "lxc.rootfs.options", true, set_config_rootfs_options, get_config_rootfs_options, clr_config_rootfs_options, },
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{ "lxc.rootfs.path", true, set_config_rootfs_path, get_config_rootfs_path, clr_config_rootfs_path, },
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{ "lxc.seccomp.allow_nesting", true, set_config_seccomp_allow_nesting, get_config_seccomp_allow_nesting, clr_config_seccomp_allow_nesting, },
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{ "lxc.seccomp.notify.cookie", true, set_config_seccomp_notify_cookie, get_config_seccomp_notify_cookie, clr_config_seccomp_notify_cookie, },
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{ "lxc.seccomp.notify.proxy", true, set_config_seccomp_notify_proxy, get_config_seccomp_notify_proxy, clr_config_seccomp_notify_proxy, },
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{ "lxc.seccomp.profile", true, set_config_seccomp_profile, get_config_seccomp_profile, clr_config_seccomp_profile, },
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{ "lxc.selinux.context.keyring", true, set_config_selinux_context_keyring, get_config_selinux_context_keyring, clr_config_selinux_context_keyring },
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{ "lxc.selinux.context", true, set_config_selinux_context, get_config_selinux_context, clr_config_selinux_context, },
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{ "lxc.signal.halt", true, set_config_signal_halt, get_config_signal_halt, clr_config_signal_halt, },
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{ "lxc.signal.reboot", true, set_config_signal_reboot, get_config_signal_reboot, clr_config_signal_reboot, },
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{ "lxc.signal.stop", true, set_config_signal_stop, get_config_signal_stop, clr_config_signal_stop, },
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{ "lxc.start.auto", true, set_config_start, get_config_start, clr_config_start, },
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{ "lxc.start.delay", true, set_config_start, get_config_start, clr_config_start, },
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{ "lxc.start.order", true, set_config_start, get_config_start, clr_config_start, },
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{ "lxc.tty.dir", true, set_config_tty_dir, get_config_tty_dir, clr_config_tty_dir, },
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{ "lxc.tty.max", true, set_config_tty_max, get_config_tty_max, clr_config_tty_max, },
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{ "lxc.uts.name", true, set_config_uts_name, get_config_uts_name, clr_config_uts_name, },
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{ "lxc.sysctl", false, set_config_sysctl, get_config_sysctl, clr_config_sysctl, },
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{ "lxc.proc", false, set_config_proc, get_config_proc, clr_config_proc, },
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};
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static struct lxc_config_t unsupported_config_key = {
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NULL,
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false,
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set_config_unsupported_key,
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get_config_unsupported_key,
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clr_config_unsupported_key,
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};
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struct lxc_config_net_t {
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LXC_CONFIG_MEMBERS;
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};
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static struct lxc_config_net_t config_jump_table_net[] = {
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/* If a longer key is added please update. */
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#define NETWORK_SUBKEY_SIZE_MAX (STRLITERALLEN("veth.vlan.tagged.id") * 2)
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{ "flags", true, set_config_net_flags, get_config_net_flags, clr_config_net_flags, },
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{ "hwaddr", true, set_config_net_hwaddr, get_config_net_hwaddr, clr_config_net_hwaddr, },
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{ "ipv4.address", true, set_config_net_ipv4_address, get_config_net_ipv4_address, clr_config_net_ipv4_address, },
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{ "ipv4.gateway", true, set_config_net_ipv4_gateway, get_config_net_ipv4_gateway, clr_config_net_ipv4_gateway, },
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{ "ipv6.address", true, set_config_net_ipv6_address, get_config_net_ipv6_address, clr_config_net_ipv6_address, },
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{ "ipv6.gateway", true, set_config_net_ipv6_gateway, get_config_net_ipv6_gateway, clr_config_net_ipv6_gateway, },
|
|
{ "link", true, set_config_net_link, get_config_net_link, clr_config_net_link, },
|
|
{ "l2proxy", true, set_config_net_l2proxy, get_config_net_l2proxy, clr_config_net_l2proxy, },
|
|
{ "macvlan.mode", true, set_config_net_macvlan_mode, get_config_net_macvlan_mode, clr_config_net_macvlan_mode, },
|
|
{ "ipvlan.mode", true, set_config_net_ipvlan_mode, get_config_net_ipvlan_mode, clr_config_net_ipvlan_mode, },
|
|
{ "ipvlan.isolation", true, set_config_net_ipvlan_isolation, get_config_net_ipvlan_isolation, clr_config_net_ipvlan_isolation, },
|
|
{ "mtu", true, set_config_net_mtu, get_config_net_mtu, clr_config_net_mtu, },
|
|
{ "name", true, set_config_net_name, get_config_net_name, clr_config_net_name, },
|
|
{ "script.down", true, set_config_net_script_down, get_config_net_script_down, clr_config_net_script_down, },
|
|
{ "script.up", true, set_config_net_script_up, get_config_net_script_up, clr_config_net_script_up, },
|
|
{ "type", true, set_config_net_type, get_config_net_type, clr_config_net_type, },
|
|
{ "vlan.id", true, set_config_net_vlan_id, get_config_net_vlan_id, clr_config_net_vlan_id, },
|
|
{ "veth.mode", true, set_config_net_veth_mode, get_config_net_veth_mode, clr_config_net_veth_mode, },
|
|
{ "veth.pair", true, set_config_net_veth_pair, get_config_net_veth_pair, clr_config_net_veth_pair, },
|
|
{ "veth.ipv4.route", true, set_config_net_veth_ipv4_route, get_config_net_veth_ipv4_route, clr_config_net_veth_ipv4_route, },
|
|
{ "veth.ipv6.route", true, set_config_net_veth_ipv6_route, get_config_net_veth_ipv6_route, clr_config_net_veth_ipv6_route, },
|
|
{ "veth.vlan.id", true, set_config_net_veth_vlan_id, get_config_net_veth_vlan_id, clr_config_net_veth_vlan_id, },
|
|
{ "veth.vlan.tagged.id", true, set_config_net_veth_vlan_tagged_id, get_config_net_veth_vlan_tagged_id, clr_config_net_veth_vlan_tagged_id, },
|
|
};
|
|
|
|
static struct lxc_config_net_t unsupported_config_net_key = {
|
|
NULL,
|
|
false,
|
|
set_config_unsupported_key,
|
|
get_config_unsupported_key,
|
|
clr_config_unsupported_key,
|
|
};
|
|
|
|
struct lxc_config_t *lxc_get_config_exact(const char *key)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(config_jump_table); i++)
|
|
if (strequal(config_jump_table[i].name, key))
|
|
return &config_jump_table[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Assume a reasonable subkey size limit. */
|
|
#define LXC_SUBKEY_LEN_MAX 256
|
|
|
|
static inline int match_config_item(const struct lxc_config_t *entry, const char *key)
|
|
{
|
|
size_t len;
|
|
|
|
if (entry->strict)
|
|
return strequal(entry->name, key);
|
|
|
|
/* There should be no subkey longer than this. */
|
|
len = strnlen(entry->name, LXC_SUBKEY_LEN_MAX);
|
|
if (len == LXC_SUBKEY_LEN_MAX)
|
|
return error_ret(-E2BIG, "Excessive subkey length");
|
|
|
|
return strnequal(entry->name, key, len);
|
|
}
|
|
|
|
struct lxc_config_t *lxc_get_config(const char *key)
|
|
{
|
|
for (size_t i = 0; i < ARRAY_SIZE(config_jump_table); i++) {
|
|
struct lxc_config_t *cur = &config_jump_table[i];
|
|
|
|
switch (match_config_item(cur, key)) {
|
|
case 0:
|
|
continue;
|
|
case -E2BIG:
|
|
return &unsupported_config_key;
|
|
}
|
|
|
|
return cur;
|
|
}
|
|
|
|
return &unsupported_config_key;
|
|
}
|
|
|
|
static inline bool match_config_net_item(const struct lxc_config_net_t *entry,
|
|
const char *key)
|
|
{
|
|
if (entry->strict)
|
|
return strequal(entry->name, key);
|
|
return strnequal(entry->name, key, strlen(entry->name));
|
|
}
|
|
|
|
static struct lxc_config_net_t *lxc_get_config_net(const char *key)
|
|
{
|
|
for (size_t i = 0; i < ARRAY_SIZE(config_jump_table_net); i++) {
|
|
struct lxc_config_net_t *cur = &config_jump_table_net[i];
|
|
|
|
if (!match_config_net_item(cur, key))
|
|
continue;
|
|
|
|
return cur;
|
|
}
|
|
|
|
return &unsupported_config_net_key;
|
|
}
|
|
|
|
static int set_config_net(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
if (!lxc_config_value_empty(value))
|
|
return syserror_set(-EINVAL, "lxc.net must not have a value");
|
|
|
|
return clr_config_net(key, lxc_conf, data);
|
|
}
|
|
|
|
static int set_config_net_type(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
clr_config_net_type(key, lxc_conf, data);
|
|
if (lxc_config_value_empty(value))
|
|
return 0;
|
|
|
|
if (strequal(value, "veth")) {
|
|
netdev->type = LXC_NET_VETH;
|
|
INIT_LIST_HEAD(&netdev->priv.veth_attr.ipv4_routes);
|
|
INIT_LIST_HEAD(&netdev->priv.veth_attr.ipv6_routes);
|
|
lxc_list_init(&netdev->priv.veth_attr.vlan_tagged_ids);
|
|
if (!lxc_veth_flag_to_mode(netdev->priv.veth_attr.mode))
|
|
lxc_veth_mode_to_flag(&netdev->priv.veth_attr.mode, "bridge");
|
|
} else if (strequal(value, "macvlan")) {
|
|
netdev->type = LXC_NET_MACVLAN;
|
|
if (!lxc_macvlan_flag_to_mode(netdev->priv.veth_attr.mode))
|
|
lxc_macvlan_mode_to_flag(&netdev->priv.macvlan_attr.mode, "private");
|
|
} else if (strequal(value, "ipvlan")) {
|
|
netdev->type = LXC_NET_IPVLAN;
|
|
if (!lxc_ipvlan_flag_to_mode(netdev->priv.ipvlan_attr.mode))
|
|
lxc_ipvlan_mode_to_flag(&netdev->priv.ipvlan_attr.mode, "l3");
|
|
if (!lxc_ipvlan_flag_to_isolation(netdev->priv.ipvlan_attr.isolation))
|
|
lxc_ipvlan_isolation_to_flag(&netdev->priv.ipvlan_attr.isolation, "bridge");
|
|
} else if (strequal(value, "vlan")) {
|
|
netdev->type = LXC_NET_VLAN;
|
|
} else if (strequal(value, "phys")) {
|
|
netdev->type = LXC_NET_PHYS;
|
|
} else if (strequal(value, "empty")) {
|
|
netdev->type = LXC_NET_EMPTY;
|
|
/* We don't support custom loopback device names. */
|
|
(void)strlcpy(netdev->name, "lo", IFNAMSIZ);
|
|
} else if (strequal(value, "none")) {
|
|
netdev->type = LXC_NET_NONE;
|
|
} else {
|
|
return log_error(-1, "Invalid network type %s", value);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_flags(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_flags(key, lxc_conf, data);
|
|
|
|
netdev->flags |= IFF_UP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int create_matched_ifnames(const char *value, struct lxc_conf *lxc_conf,
|
|
struct lxc_netdev *netdev)
|
|
{
|
|
call_cleaner(netns_freeifaddrs) struct netns_ifaddrs *ifaddr = NULL;
|
|
struct netns_ifaddrs *ifa;
|
|
int n;
|
|
int ret = 0;
|
|
const char *type_key = "lxc.net.type";
|
|
const char *link_key = "lxc.net.link";
|
|
const char *tmpvalue = "phys";
|
|
|
|
if (netns_getifaddrs(&ifaddr, -1, &(bool){false}) < 0)
|
|
return log_error_errno(-1, errno, "Failed to get network interfaces");
|
|
|
|
for (ifa = ifaddr, n = 0; ifa != NULL; ifa = ifa->ifa_next, n++) {
|
|
if (!ifa->ifa_addr)
|
|
continue;
|
|
|
|
if (ifa->ifa_addr->sa_family != AF_PACKET)
|
|
continue;
|
|
|
|
if (strnequal(value, ifa->ifa_name, strlen(value) - 1)) {
|
|
ret = set_config_net_type(type_key, tmpvalue, lxc_conf,
|
|
netdev);
|
|
if (!ret) {
|
|
ret = set_config_net_link(
|
|
link_key, ifa->ifa_name, lxc_conf, netdev);
|
|
if (ret) {
|
|
ERROR("Failed to create matched ifnames");
|
|
break;
|
|
}
|
|
} else {
|
|
ERROR("Failed to create matched ifnames");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int set_config_net_link(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
int ret = 0;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_link(key, lxc_conf, data);
|
|
|
|
if (value[strlen(value) - 1] == '+' && netdev->type == LXC_NET_PHYS)
|
|
ret = create_matched_ifnames(value, lxc_conf, netdev);
|
|
else
|
|
ret = network_ifname(netdev->link, value, sizeof(netdev->link));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int set_config_net_l2proxy(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
unsigned int val = 0;
|
|
int ret;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_l2proxy(key, lxc_conf, data);
|
|
|
|
ret = lxc_safe_uint(value, &val);
|
|
if (ret < 0)
|
|
return ret_errno(ret);
|
|
|
|
switch (val) {
|
|
case 0:
|
|
netdev->l2proxy = false;
|
|
return 0;
|
|
case 1:
|
|
netdev->l2proxy = true;
|
|
return 0;
|
|
}
|
|
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
static int set_config_net_name(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_name(key, lxc_conf, data);
|
|
|
|
return network_ifname(netdev->name, value, sizeof(netdev->name));
|
|
}
|
|
|
|
|
|
static int set_config_net_veth_mode(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_veth_mode(key, lxc_conf, data);
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
return lxc_veth_mode_to_flag(&netdev->priv.veth_attr.mode, value);
|
|
}
|
|
|
|
static int set_config_net_veth_pair(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_veth_pair(key, lxc_conf, data);
|
|
|
|
return network_ifname(netdev->priv.veth_attr.pair, value,
|
|
sizeof(netdev->priv.veth_attr.pair));
|
|
}
|
|
|
|
static int set_config_net_veth_vlan_id(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_veth_vlan_id(key, lxc_conf, data);
|
|
|
|
if (strequal(value, "none")) {
|
|
netdev->priv.veth_attr.vlan_id = BRIDGE_VLAN_NONE;
|
|
} else {
|
|
unsigned short vlan_id;
|
|
|
|
ret = get_u16(&vlan_id, value, 0);
|
|
if (ret < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (vlan_id > BRIDGE_VLAN_ID_MAX)
|
|
return ret_errno(EINVAL);
|
|
|
|
netdev->priv.veth_attr.vlan_id = vlan_id;
|
|
}
|
|
|
|
netdev->priv.veth_attr.vlan_id_set = true;
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_veth_vlan_tagged_id(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
__do_free struct lxc_list *list = NULL;
|
|
int ret;
|
|
unsigned short vlan_id;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_veth_vlan_tagged_id(key, lxc_conf, data);
|
|
|
|
ret = get_u16(&vlan_id, value, 0);
|
|
if (ret < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (vlan_id > BRIDGE_VLAN_ID_MAX)
|
|
return ret_errno(EINVAL);
|
|
|
|
list = lxc_list_new();
|
|
if (!list)
|
|
return ret_errno(ENOMEM);
|
|
|
|
list->elem = UINT_TO_PTR(vlan_id);
|
|
|
|
lxc_list_add_tail(&netdev->priv.veth_attr.vlan_tagged_ids, move_ptr(list));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_macvlan_mode(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_MACVLAN)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_macvlan_mode(key, lxc_conf, data);
|
|
|
|
return lxc_macvlan_mode_to_flag(&netdev->priv.macvlan_attr.mode, value);
|
|
}
|
|
|
|
static int set_config_net_ipvlan_mode(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_IPVLAN)
|
|
return syserror_set(-EINVAL, "Invalid ipvlan mode \"%s\", can only be used with ipvlan network", value);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_ipvlan_mode(key, lxc_conf, data);
|
|
|
|
return lxc_ipvlan_mode_to_flag(&netdev->priv.ipvlan_attr.mode, value);
|
|
}
|
|
|
|
static int set_config_net_ipvlan_isolation(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_IPVLAN)
|
|
return syserror_set(-EINVAL, "Invalid ipvlan isolation \"%s\", can only be used with ipvlan network", value);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_ipvlan_isolation(key, lxc_conf, data);
|
|
|
|
return lxc_ipvlan_isolation_to_flag(&netdev->priv.ipvlan_attr.isolation, value);
|
|
}
|
|
|
|
static int set_config_net_hwaddr(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *new_value = NULL;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
clr_config_net_hwaddr(key, lxc_conf, data);
|
|
if (lxc_config_value_empty(value))
|
|
return 0;
|
|
|
|
new_value = strdup(value);
|
|
if (!new_value)
|
|
return ret_errno(ENOMEM);
|
|
|
|
rand_complete_hwaddr(new_value);
|
|
if (!lxc_config_value_empty(new_value))
|
|
netdev->hwaddr = move_ptr(new_value);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_vlan_id(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VLAN)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_vlan_id(key, lxc_conf, data);
|
|
|
|
ret = get_u16(&netdev->priv.vlan_attr.vid, value, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_mtu(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
clr_config_net_mtu(key, lxc_conf, data);
|
|
if (lxc_config_value_empty(value))
|
|
return 0;
|
|
|
|
return set_config_string_item(&netdev->mtu, value);
|
|
}
|
|
|
|
static int set_config_net_ipv4_address(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *addr = NULL;
|
|
__do_free struct lxc_inetdev *inetdev = NULL;
|
|
int ret;
|
|
struct lxc_netdev *netdev = data;
|
|
char *cursor, *slash;
|
|
char *bcast = NULL, *prefix = NULL;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_ipv4_address(key, lxc_conf, data);
|
|
|
|
inetdev = zalloc(sizeof(*inetdev));
|
|
if (!inetdev)
|
|
return ret_errno(ENOMEM);
|
|
|
|
addr = strdup(value);
|
|
if (!addr)
|
|
return ret_errno(ENOMEM);
|
|
|
|
cursor = strstr(addr, " ");
|
|
if (cursor) {
|
|
*cursor = '\0';
|
|
bcast = cursor + 1;
|
|
}
|
|
|
|
slash = strstr(addr, "/");
|
|
if (slash) {
|
|
*slash = '\0';
|
|
prefix = slash + 1;
|
|
}
|
|
|
|
ret = inet_pton(AF_INET, addr, &inetdev->addr);
|
|
if (!ret || ret < 0)
|
|
return log_error_errno(-1, errno, "Invalid ipv4 address \"%s\"", value);
|
|
|
|
if (bcast) {
|
|
ret = inet_pton(AF_INET, bcast, &inetdev->bcast);
|
|
if (!ret || ret < 0)
|
|
return log_error_errno(-1, errno, "Invalid ipv4 broadcast address \"%s\"", value);
|
|
|
|
}
|
|
|
|
/* No prefix specified, determine it from the network class. */
|
|
ret = 0;
|
|
if (prefix)
|
|
ret = lxc_safe_uint(prefix, &inetdev->prefix);
|
|
else
|
|
inetdev->prefix = config_ip_prefix(&inetdev->addr);
|
|
if (ret || inetdev->prefix > 32)
|
|
return ret_errno(EINVAL);
|
|
|
|
/* If no broadcast address, compute one from the prefix and address. */
|
|
if (!bcast) {
|
|
unsigned int shift = LAST_BIT_PER_TYPE(inetdev->prefix);
|
|
|
|
inetdev->bcast.s_addr = inetdev->addr.s_addr;
|
|
if (inetdev->prefix < shift)
|
|
shift = inetdev->prefix;
|
|
inetdev->bcast.s_addr |= htonl(INADDR_BROADCAST >> shift);
|
|
}
|
|
|
|
list_add_tail(&inetdev->head, &netdev->ipv4_addresses);
|
|
move_ptr(inetdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_ipv4_gateway(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
clr_config_net_ipv4_gateway(key, lxc_conf, data);
|
|
if (lxc_config_value_empty(value))
|
|
return 0;
|
|
|
|
if (strequal(value, "auto")) {
|
|
netdev->ipv4_gateway = NULL;
|
|
netdev->ipv4_gateway_auto = true;
|
|
} else if (strequal(value, "dev")) {
|
|
netdev->ipv4_gateway = NULL;
|
|
netdev->ipv4_gateway_auto = false;
|
|
netdev->ipv4_gateway_dev = true;
|
|
} else {
|
|
__do_free struct in_addr *gw = NULL;
|
|
int ret;
|
|
|
|
gw = zalloc(sizeof(*gw));
|
|
if (!gw)
|
|
return ret_errno(ENOMEM);
|
|
|
|
ret = inet_pton(AF_INET, value, gw);
|
|
if (!ret || ret < 0)
|
|
return log_error_errno(-1, errno, "Invalid ipv4 gateway address \"%s\"", value);
|
|
|
|
netdev->ipv4_gateway = move_ptr(gw);
|
|
netdev->ipv4_gateway_auto = false;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_veth_ipv4_route(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *valdup = NULL;
|
|
__do_free struct lxc_inetdev *inetdev = NULL;
|
|
int ret;
|
|
char *netmask, *slash;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return syserror_set(-EINVAL, "Invalid ipv4 route \"%s\", can only be used with veth network", value);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_veth_ipv4_route(key, lxc_conf, data);
|
|
|
|
inetdev = zalloc(sizeof(*inetdev));
|
|
if (!inetdev)
|
|
return ret_errno(ENOMEM);
|
|
|
|
valdup = strdup(value);
|
|
if (!valdup)
|
|
return ret_errno(ENOMEM);
|
|
|
|
slash = strchr(valdup, '/');
|
|
if (!slash)
|
|
return ret_errno(EINVAL);
|
|
|
|
*slash = '\0';
|
|
slash++;
|
|
if (*slash == '\0')
|
|
return ret_errno(EINVAL);
|
|
|
|
netmask = slash;
|
|
|
|
ret = lxc_safe_uint(netmask, &inetdev->prefix);
|
|
if (ret < 0 || inetdev->prefix > 32)
|
|
return ret_errno(EINVAL);
|
|
|
|
ret = inet_pton(AF_INET, valdup, &inetdev->addr);
|
|
if (!ret || ret < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
list_add_tail(&inetdev->head, &netdev->priv.veth_attr.ipv4_routes);
|
|
move_ptr(inetdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_ipv6_address(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *valdup = NULL;
|
|
__do_free struct lxc_inet6dev *inet6dev = NULL;
|
|
int ret;
|
|
struct lxc_netdev *netdev = data;
|
|
char *slash, *netmask;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_ipv6_address(key, lxc_conf, data);
|
|
|
|
inet6dev = zalloc(sizeof(*inet6dev));
|
|
if (!inet6dev)
|
|
return ret_errno(ENOMEM);
|
|
|
|
valdup = strdup(value);
|
|
if (!valdup)
|
|
return ret_errno(ENOMEM);
|
|
|
|
inet6dev->prefix = 64;
|
|
slash = strstr(valdup, "/");
|
|
if (slash) {
|
|
*slash = '\0';
|
|
netmask = slash + 1;
|
|
|
|
ret = lxc_safe_uint(netmask, &inet6dev->prefix);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = inet_pton(AF_INET6, valdup, &inet6dev->addr);
|
|
if (!ret || ret < 0)
|
|
return log_error_errno(-EINVAL, EINVAL, "Invalid ipv6 address \"%s\"", valdup);
|
|
|
|
list_add_tail(&inet6dev->head, &netdev->ipv6_addresses);
|
|
move_ptr(inet6dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_ipv6_gateway(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
clr_config_net_ipv6_gateway(key, lxc_conf, data);
|
|
if (lxc_config_value_empty(value))
|
|
return 0;
|
|
|
|
if (strequal(value, "auto")) {
|
|
netdev->ipv6_gateway = NULL;
|
|
netdev->ipv6_gateway_auto = true;
|
|
} else if (strequal(value, "dev")) {
|
|
netdev->ipv6_gateway = NULL;
|
|
netdev->ipv6_gateway_auto = false;
|
|
netdev->ipv6_gateway_dev = true;
|
|
} else {
|
|
int ret;
|
|
__do_free struct in6_addr *gw = NULL;
|
|
|
|
gw = zalloc(sizeof(*gw));
|
|
if (!gw)
|
|
return ret_errno(ENOMEM);
|
|
|
|
ret = inet_pton(AF_INET6, value, gw);
|
|
if (!ret || ret < 0)
|
|
return log_error_errno(-EINVAL, EINVAL,
|
|
"Invalid ipv6 gateway address \"%s\"", value);
|
|
|
|
netdev->ipv6_gateway = move_ptr(gw);
|
|
netdev->ipv6_gateway_auto = false;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_veth_ipv6_route(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *valdup = NULL;
|
|
__do_free struct lxc_inet6dev *inet6dev = NULL;
|
|
int ret;
|
|
char *netmask, *slash;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return syserror_set(-EINVAL, "Invalid ipv6 route \"%s\", can only be used with veth network", value);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_net_veth_ipv6_route(key, lxc_conf, data);
|
|
|
|
inet6dev = zalloc(sizeof(*inet6dev));
|
|
if (!inet6dev)
|
|
return ret_errno(ENOMEM);
|
|
|
|
valdup = strdup(value);
|
|
if (!valdup)
|
|
return ret_errno(ENOMEM);
|
|
|
|
slash = strchr(valdup, '/');
|
|
if (!slash)
|
|
return ret_errno(EINVAL);
|
|
|
|
*slash = '\0';
|
|
slash++;
|
|
if (*slash == '\0')
|
|
return ret_errno(EINVAL);
|
|
|
|
netmask = slash;
|
|
|
|
ret = lxc_safe_uint(netmask, &inet6dev->prefix);
|
|
if (ret < 0 || inet6dev->prefix > 128)
|
|
return ret_errno(EINVAL);
|
|
|
|
ret = inet_pton(AF_INET6, valdup, &inet6dev->addr);
|
|
if (!ret || ret < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
list_add_tail(&inet6dev->head, &netdev->priv.veth_attr.ipv6_routes);
|
|
move_ptr(inet6dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_net_script_up(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
clr_config_net_script_up(key, lxc_conf, data);
|
|
if (lxc_config_value_empty(value))
|
|
return 0;
|
|
|
|
return set_config_string_item(&netdev->upscript, value);
|
|
}
|
|
|
|
static int set_config_net_script_down(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
clr_config_net_script_down(key, lxc_conf, data);
|
|
if (lxc_config_value_empty(value))
|
|
return 0;
|
|
|
|
return set_config_string_item(&netdev->downscript, value);
|
|
}
|
|
|
|
static int add_hook(struct lxc_conf *lxc_conf, int which, __owns char *hook)
|
|
{
|
|
__do_free char *val = hook;
|
|
__do_free struct string_entry *entry;
|
|
|
|
entry = zalloc(sizeof(struct string_entry));
|
|
if (!entry)
|
|
return ret_errno(ENOMEM);
|
|
|
|
entry->val = move_ptr(val);
|
|
list_add_tail(&entry->head, &lxc_conf->hooks[which]);
|
|
move_ptr(entry);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_seccomp_allow_nesting(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_seccomp_allow_nesting(key, lxc_conf, NULL);
|
|
|
|
if (lxc_safe_uint(value, &lxc_conf->seccomp.allow_nesting) < 0)
|
|
return -errno;
|
|
|
|
if (lxc_conf->seccomp.allow_nesting > 1)
|
|
return ret_errno(EINVAL);
|
|
|
|
return 0;
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static int set_config_seccomp_notify_cookie(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP_NOTIFY
|
|
return set_config_string_item(&lxc_conf->seccomp.notifier.cookie, value);
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static int set_config_seccomp_notify_proxy(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP_NOTIFY
|
|
const char *offset;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_seccomp_notify_proxy(key, lxc_conf, NULL);
|
|
|
|
if (!strnequal(value, "unix:", 5))
|
|
return ret_errno(EINVAL);
|
|
|
|
offset = value + 5;
|
|
if (lxc_unix_sockaddr(&lxc_conf->seccomp.notifier.proxy_addr, offset) < 0)
|
|
return -errno;
|
|
|
|
return 0;
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static int set_config_seccomp_profile(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP
|
|
return set_config_path_item(&lxc_conf->seccomp.seccomp, value);
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static int set_config_execute_cmd(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return set_config_path_item(&lxc_conf->execute_cmd, value);
|
|
}
|
|
|
|
static int set_config_init_cmd(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return set_config_path_item(&lxc_conf->init_cmd, value);
|
|
}
|
|
|
|
static int set_config_init_cwd(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return set_config_path_item(&lxc_conf->init_cwd, value);
|
|
}
|
|
|
|
static int set_config_init_uid(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
unsigned int init_uid;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->init_uid = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (lxc_safe_uint(value, &init_uid) < 0)
|
|
return -errno;
|
|
|
|
lxc_conf->init_uid = init_uid;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_init_gid(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
unsigned int init_gid;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->init_gid = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (lxc_safe_uint(value, &init_gid) < 0)
|
|
return -errno;
|
|
|
|
lxc_conf->init_gid = init_gid;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_init_groups(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *value_dup = NULL;
|
|
gid_t *init_groups = NULL;
|
|
size_t num_groups = 0;
|
|
size_t idx;
|
|
char *token;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_init_groups(key, lxc_conf, NULL);
|
|
|
|
value_dup = strdup(value);
|
|
if (!value_dup)
|
|
return -ENOMEM;
|
|
|
|
lxc_iterate_parts(token, value_dup, ",")
|
|
num_groups++;
|
|
|
|
if (num_groups == INT_MAX)
|
|
return log_error_errno(-ERANGE, ERANGE, "Excessive number of supplementary groups specified");
|
|
|
|
/* This means the string wasn't empty and all we found was garbage. */
|
|
if (num_groups == 0)
|
|
return log_error_errno(-EINVAL, EINVAL, "No valid groups specified %s", value);
|
|
|
|
idx = lxc_conf->init_groups.size;
|
|
init_groups = realloc(lxc_conf->init_groups.list, sizeof(gid_t) * (idx + num_groups));
|
|
if (!init_groups)
|
|
return ret_errno(ENOMEM);
|
|
|
|
/*
|
|
* Once the realloc() succeeded we need to hand control of the memory
|
|
* back to the config otherwise we risk a double-free when
|
|
* lxc_conf_free() is called.
|
|
*/
|
|
lxc_conf->init_groups.list = init_groups;
|
|
|
|
/* Restore duplicated value so we can call lxc_iterate_parts() again. */
|
|
strcpy(value_dup, value);
|
|
|
|
lxc_iterate_parts(token, value_dup, ",") {
|
|
int ret;
|
|
|
|
gid_t group;
|
|
|
|
ret = lxc_safe_uint(token, &group);
|
|
if (ret)
|
|
return log_error_errno(ret, -ret, "Failed to parse group %s", token);
|
|
|
|
init_groups[idx++] = group;
|
|
}
|
|
|
|
lxc_conf->init_groups.size += num_groups;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_hooks(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *copy = NULL;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_hooks(lxc_conf, key);
|
|
|
|
if (strequal(key + 4, "hook"))
|
|
return log_error_errno(-EINVAL, EINVAL, "lxc.hook must not have a value");
|
|
|
|
copy = strdup(value);
|
|
if (!copy)
|
|
return ret_errno(ENOMEM);
|
|
|
|
if (strequal(key + 9, "pre-start"))
|
|
return add_hook(lxc_conf, LXCHOOK_PRESTART, move_ptr(copy));
|
|
else if (strequal(key + 9, "start-host"))
|
|
return add_hook(lxc_conf, LXCHOOK_START_HOST, move_ptr(copy));
|
|
else if (strequal(key + 9, "pre-mount"))
|
|
return add_hook(lxc_conf, LXCHOOK_PREMOUNT, move_ptr(copy));
|
|
else if (strequal(key + 9, "autodev"))
|
|
return add_hook(lxc_conf, LXCHOOK_AUTODEV, move_ptr(copy));
|
|
else if (strequal(key + 9, "mount"))
|
|
return add_hook(lxc_conf, LXCHOOK_MOUNT, move_ptr(copy));
|
|
else if (strequal(key + 9, "start"))
|
|
return add_hook(lxc_conf, LXCHOOK_START, move_ptr(copy));
|
|
else if (strequal(key + 9, "stop"))
|
|
return add_hook(lxc_conf, LXCHOOK_STOP, move_ptr(copy));
|
|
else if (strequal(key + 9, "post-stop"))
|
|
return add_hook(lxc_conf, LXCHOOK_POSTSTOP, move_ptr(copy));
|
|
else if (strequal(key + 9, "clone"))
|
|
return add_hook(lxc_conf, LXCHOOK_CLONE, move_ptr(copy));
|
|
else if (strequal(key + 9, "destroy"))
|
|
return add_hook(lxc_conf, LXCHOOK_DESTROY, move_ptr(copy));
|
|
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
static int set_config_hooks_version(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
unsigned int tmp;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_hooks_version(key, lxc_conf, NULL);
|
|
|
|
ret = lxc_safe_uint(value, &tmp);
|
|
if (ret < 0)
|
|
return -errno;
|
|
|
|
if (tmp > 1)
|
|
return syserror_set(-EINVAL, "Invalid hook version specified. Currently only 0 (legacy) and 1 are supported");
|
|
|
|
lxc_conf->hooks_version = tmp;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_personality(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
personality_t personality;
|
|
|
|
ret = lxc_config_parse_arch(value, &personality);
|
|
if (ret < 0)
|
|
return syserror("Unsupported personality \"%s\"", value);
|
|
|
|
lxc_conf->personality = personality;
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_pty_max(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
unsigned int max = 0;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->pty_max = 0;
|
|
return 0;
|
|
}
|
|
|
|
ret = lxc_safe_uint(value, &max);
|
|
if (ret < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
lxc_conf->pty_max = max;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* We only need to check whether the first byte of the key after the lxc.start.
|
|
* prefix matches our expectations since they fortunately all start with a
|
|
* different letter. If anything was wrong with the key we would have already
|
|
* noticed when the callback was called.
|
|
*/
|
|
static int set_config_start(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
bool is_empty;
|
|
|
|
is_empty = lxc_config_value_empty(value);
|
|
|
|
if (*(key + 10) == 'a') { /* lxc.start.auto */
|
|
if (is_empty) {
|
|
lxc_conf->start_auto = 0;
|
|
return 0;
|
|
}
|
|
|
|
ret = lxc_safe_uint(value, &lxc_conf->start_auto);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (lxc_conf->start_auto > 1)
|
|
return ret_errno(EINVAL);
|
|
|
|
return 0;
|
|
} else if (*(key + 10) == 'd') { /* lxc.start.delay */
|
|
if (is_empty) {
|
|
lxc_conf->start_delay = 0;
|
|
return 0;
|
|
}
|
|
|
|
return lxc_safe_uint(value, &lxc_conf->start_delay);
|
|
} else if (*(key + 10) == 'o') { /* lxc.start.order */
|
|
if (is_empty) {
|
|
lxc_conf->start_order = 0;
|
|
return 0;
|
|
}
|
|
|
|
return lxc_safe_int(value, &lxc_conf->start_order);
|
|
}
|
|
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
static int set_config_monitor(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->monitor_unshare = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (strequal(key + 12, "unshare"))
|
|
return lxc_safe_uint(value, &lxc_conf->monitor_unshare);
|
|
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
static int set_config_monitor_signal_pdeath(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->monitor_signal_pdeath = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (strequal(key + 12, "signal.pdeath")) {
|
|
int sig_n;
|
|
|
|
sig_n = sig_parse(value);
|
|
if (sig_n < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
lxc_conf->monitor_signal_pdeath = sig_n;
|
|
return 0;
|
|
}
|
|
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
static int set_config_group(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *groups = NULL;
|
|
char *token;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_groups(lxc_conf);
|
|
|
|
groups = strdup(value);
|
|
if (!groups)
|
|
return ret_errno(ENOMEM);
|
|
|
|
/*
|
|
* In case several groups are specified in a single line split these
|
|
* groups in a single element for the list.
|
|
*/
|
|
lxc_iterate_parts(token, groups, " \t") {
|
|
__do_free char *val = NULL;
|
|
__do_free struct string_entry *entry = NULL;
|
|
|
|
entry = zalloc(sizeof(struct string_entry));
|
|
if (!entry)
|
|
return ret_errno(ENOMEM);
|
|
|
|
val = strdup(token);
|
|
if (!val)
|
|
return ret_errno(ENOMEM);
|
|
|
|
entry->val = move_ptr(val);
|
|
list_add_tail(&entry->head, &lxc_conf->groups);
|
|
move_ptr(entry);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_environment(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *dup = NULL, *val = NULL;
|
|
__do_free struct environment_entry *new_env = NULL;
|
|
char *env_val;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_environment(lxc_conf);
|
|
|
|
new_env = zalloc(sizeof(struct environment_entry));
|
|
if (!new_env)
|
|
return ret_errno(ENOMEM);
|
|
|
|
dup = strdup(value);
|
|
if (!dup)
|
|
return ret_errno(ENOMEM);
|
|
|
|
env_val = strchr(dup, '=');
|
|
if (!env_val) {
|
|
env_val = getenv(dup);
|
|
} else {
|
|
*env_val = '\0';
|
|
env_val++;
|
|
}
|
|
if (!env_val)
|
|
return ret_errno(ENOENT);
|
|
|
|
val = strdup(env_val);
|
|
if (!val)
|
|
return ret_errno(ENOMEM);
|
|
|
|
new_env->key = move_ptr(dup);
|
|
new_env->val = move_ptr(val);
|
|
|
|
list_add_tail(&new_env->head, &lxc_conf->environment);
|
|
move_ptr(new_env);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_tty_max(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
unsigned int nbtty = 0;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->ttys.max = 0;
|
|
return 0;
|
|
}
|
|
|
|
ret = lxc_safe_uint(value, &nbtty);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
lxc_conf->ttys.max = nbtty;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_tty_dir(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return set_config_string_item_max(&lxc_conf->ttys.dir, value,
|
|
NAME_MAX + 1);
|
|
}
|
|
|
|
static int set_config_apparmor_profile(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
return set_config_string_item(&lxc_conf->lsm_aa_profile, value);
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static int set_config_apparmor_allow_incomplete(const char *key,
|
|
const char *value,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->lsm_aa_allow_incomplete = 0;
|
|
return 0;
|
|
}
|
|
|
|
ret = lxc_safe_uint(value, &lxc_conf->lsm_aa_allow_incomplete);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (lxc_conf->lsm_aa_allow_incomplete > 1)
|
|
return ret_errno(EINVAL);
|
|
|
|
return 0;
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static int set_config_apparmor_allow_nesting(const char *key,
|
|
const char *value,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_apparmor_allow_nesting(key, lxc_conf, NULL);
|
|
|
|
ret = lxc_safe_uint(value, &lxc_conf->lsm_aa_allow_nesting);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (lxc_conf->lsm_aa_allow_nesting > 1)
|
|
return ret_errno(EINVAL);
|
|
|
|
return 0;
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static int set_config_apparmor_raw(const char *key,
|
|
const char *value,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
__do_free char *elem = NULL;
|
|
__do_free struct string_entry *entry = NULL;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_apparmor_raw(lxc_conf);
|
|
|
|
entry = zalloc(sizeof(struct string_entry));
|
|
if (!entry)
|
|
return ret_errno(ENOMEM);
|
|
|
|
elem = strdup(value);
|
|
if (!elem)
|
|
return ret_errno(ENOMEM);
|
|
|
|
entry->val = move_ptr(elem);
|
|
list_add_tail(&entry->head, &lxc_conf->lsm_aa_raw);
|
|
move_ptr(entry);
|
|
|
|
return 0;
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static int set_config_selinux_context(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
#if HAVE_SELINUX
|
|
return set_config_string_item(&lxc_conf->lsm_se_context, value);
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without SELinux support");
|
|
#endif
|
|
}
|
|
|
|
static int set_config_selinux_context_keyring(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
#if HAVE_SELINUX
|
|
return set_config_string_item(&lxc_conf->lsm_se_keyring_context, value);
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without SELinux support");
|
|
#endif
|
|
}
|
|
|
|
static int set_config_keyring_session(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return set_config_bool_item(&lxc_conf->keyring_disable_session, value, false);
|
|
}
|
|
|
|
static int set_config_log_file(const char *key, const char *value,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
free_disarm(c->logfile);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Store these values in the lxc_conf, and then try to set for actual
|
|
* current logging.
|
|
*/
|
|
ret = set_config_path_item(&c->logfile, value);
|
|
if (ret == 0)
|
|
ret = lxc_log_set_file(&c->logfd, c->logfile);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int set_config_log_level(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int newlevel;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->loglevel = LXC_LOG_LEVEL_NOTSET;
|
|
return 0;
|
|
}
|
|
|
|
if (value[0] >= '0' && value[0] <= '9') {
|
|
int ret;
|
|
|
|
ret = lxc_safe_int(value, &newlevel);
|
|
if (ret)
|
|
return ret_errno(EINVAL);
|
|
} else {
|
|
newlevel = lxc_log_priority_to_int(value);
|
|
}
|
|
|
|
/*
|
|
* Store these values in the lxc_conf, and then try to set for actual
|
|
* current logging.
|
|
*/
|
|
lxc_conf->loglevel = newlevel;
|
|
|
|
return lxc_log_set_level(&lxc_conf->loglevel, newlevel);
|
|
}
|
|
|
|
static int set_config_autodev(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->autodev = 0;
|
|
return 0;
|
|
}
|
|
|
|
ret = lxc_safe_uint(value, &lxc_conf->autodev);
|
|
if (ret)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_conf->autodev > 1)
|
|
return ret_errno(EINVAL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_autodev_tmpfs_size(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->autodevtmpfssize = 500000;
|
|
return 0;
|
|
}
|
|
|
|
if (lxc_safe_int(value, &lxc_conf->autodevtmpfssize) < 0)
|
|
lxc_conf->autodevtmpfssize = 500000;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_signal_halt(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int sig_n;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->haltsignal = 0;
|
|
return 0;
|
|
}
|
|
|
|
sig_n = sig_parse(value);
|
|
if (sig_n < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
lxc_conf->haltsignal = sig_n;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_signal_reboot(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int sig_n;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->rebootsignal = 0;
|
|
return 0;
|
|
}
|
|
|
|
sig_n = sig_parse(value);
|
|
if (sig_n < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
lxc_conf->rebootsignal = sig_n;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_signal_stop(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int sig_n;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->stopsignal = 0;
|
|
return 0;
|
|
}
|
|
|
|
sig_n = sig_parse(value);
|
|
if (sig_n < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
lxc_conf->stopsignal = sig_n;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __set_config_cgroup_controller(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, int version)
|
|
{
|
|
call_cleaner(free_lxc_cgroup) struct lxc_cgroup *new_cgroup = NULL;
|
|
const char *subkey, *token;
|
|
size_t token_len;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_cgroups(lxc_conf, key, version);
|
|
|
|
if (version == CGROUP2_SUPER_MAGIC) {
|
|
token = "lxc.cgroup2.";
|
|
token_len = 12;
|
|
} else if (version == CGROUP_SUPER_MAGIC) {
|
|
token = "lxc.cgroup.";
|
|
token_len = 11;
|
|
} else {
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
if (!strnequal(key, token, token_len))
|
|
return ret_errno(EINVAL);
|
|
|
|
subkey = key + token_len;
|
|
if (*subkey == '\0')
|
|
return ret_errno(EINVAL);
|
|
|
|
new_cgroup = zalloc(sizeof(*new_cgroup));
|
|
if (!new_cgroup)
|
|
return ret_errno(ENOMEM);
|
|
|
|
new_cgroup->subsystem = strdup(subkey);
|
|
if (!new_cgroup->subsystem)
|
|
return ret_errno(ENOMEM);
|
|
|
|
new_cgroup->value = strdup(value);
|
|
if (!new_cgroup->value)
|
|
return ret_errno(ENOMEM);
|
|
|
|
new_cgroup->version = version;
|
|
|
|
if (version == CGROUP2_SUPER_MAGIC)
|
|
list_add_tail(&new_cgroup->head, &lxc_conf->cgroup2);
|
|
else
|
|
list_add_tail(&new_cgroup->head, &lxc_conf->cgroup);
|
|
move_ptr(new_cgroup);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_cgroup_controller(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return __set_config_cgroup_controller(key, value, lxc_conf,
|
|
CGROUP_SUPER_MAGIC);
|
|
}
|
|
|
|
static int set_config_cgroup2_controller(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return __set_config_cgroup_controller(key, value, lxc_conf,
|
|
CGROUP2_SUPER_MAGIC);
|
|
}
|
|
|
|
static int set_config_cgroup_dir(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
if (!strequal(key, "lxc.cgroup.dir"))
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_cgroup_dir(key, lxc_conf, NULL);
|
|
|
|
if (abspath(value))
|
|
return syserror_set(-EINVAL, "%s paths may not be absolute", key);
|
|
|
|
if (dotdot(value))
|
|
return syserror_set(-EINVAL, "%s paths may not walk upwards via \"../\"", key);
|
|
|
|
return set_config_path_item(&lxc_conf->cgroup_meta.dir, value);
|
|
}
|
|
|
|
static int set_config_cgroup_monitor_dir(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_cgroup_monitor_dir(key, lxc_conf, NULL);
|
|
|
|
if (abspath(value))
|
|
return syserror_set(-EINVAL, "%s paths may not be absolute", key);
|
|
|
|
if (dotdot(value))
|
|
return syserror_set(-EINVAL, "%s paths may not walk upwards via \"../\"", key);
|
|
|
|
return set_config_path_item(&lxc_conf->cgroup_meta.monitor_dir, value);
|
|
}
|
|
|
|
static int set_config_cgroup_monitor_pivot_dir(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_cgroup_monitor_pivot_dir(key, lxc_conf, NULL);
|
|
|
|
if (abspath(value))
|
|
return syserror_set(-EINVAL, "%s paths may not be absolute", key);
|
|
|
|
if (dotdot(value))
|
|
return syserror_set(-EINVAL, "%s paths may not walk upwards via \"../\"", key);
|
|
|
|
return set_config_path_item(&lxc_conf->cgroup_meta.monitor_pivot_dir, value);
|
|
}
|
|
|
|
static int set_config_cgroup_container_dir(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_cgroup_container_dir(key, lxc_conf, NULL);
|
|
|
|
if (abspath(value))
|
|
return syserror_set(-EINVAL, "%s paths may not be absolute", key);
|
|
|
|
if (dotdot(value))
|
|
return syserror_set(-EINVAL, "%s paths may not walk upwards via \"../\"", key);
|
|
|
|
return set_config_path_item(&lxc_conf->cgroup_meta.container_dir, value);
|
|
}
|
|
|
|
static int set_config_cgroup_container_inner_dir(const char *key,
|
|
const char *value,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_cgroup_container_inner_dir(key, lxc_conf, NULL);
|
|
|
|
if (abspath(value))
|
|
return syserror_set(-EINVAL, "%s paths may not be absolute", key);
|
|
|
|
if (strchr(value, '/') || strequal(value, ".") || strequal(value, ".."))
|
|
return log_error_errno(-EINVAL, EINVAL, "lxc.cgroup.dir.container.inner must be a single directory name");
|
|
|
|
return set_config_string_item(&lxc_conf->cgroup_meta.namespace_dir, value);
|
|
}
|
|
|
|
static int set_config_cgroup_relative(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
unsigned int converted;
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_cgroup_relative(key, lxc_conf, NULL);
|
|
|
|
ret = lxc_safe_uint(value, &converted);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (converted == 1) {
|
|
lxc_conf->cgroup_meta.relative = true;
|
|
return 0;
|
|
}
|
|
|
|
if (converted == 0) {
|
|
lxc_conf->cgroup_meta.relative = false;
|
|
return 0;
|
|
}
|
|
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
static bool parse_limit_value(const char **value, rlim_t *res)
|
|
{
|
|
char *endptr = NULL;
|
|
|
|
if (strnequal(*value, "unlimited", STRLITERALLEN("unlimited"))) {
|
|
*res = RLIM_INFINITY;
|
|
*value += STRLITERALLEN("unlimited");
|
|
return true;
|
|
}
|
|
|
|
errno = 0;
|
|
*res = strtoull(*value, &endptr, 10);
|
|
if (errno || !endptr)
|
|
return false;
|
|
|
|
*value = endptr;
|
|
|
|
return true;
|
|
}
|
|
|
|
static int set_config_prlimit(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
call_cleaner(free_lxc_limit) struct lxc_limit *new_lim = NULL;
|
|
struct rlimit limit;
|
|
rlim_t limit_value;
|
|
struct lxc_limit *lim;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_limits(lxc_conf, key);
|
|
|
|
if (!strnequal(key, "lxc.prlimit.", STRLITERALLEN("lxc.prlimit.")))
|
|
return ret_errno(EINVAL);
|
|
|
|
key += STRLITERALLEN("lxc.prlimit.");
|
|
|
|
/* soft limit comes first in the value */
|
|
if (!parse_limit_value(&value, &limit_value))
|
|
return ret_errno(EINVAL);
|
|
|
|
limit.rlim_cur = limit_value;
|
|
|
|
/* skip spaces and a colon */
|
|
while (isspace(*value))
|
|
++value;
|
|
|
|
if (*value == ':')
|
|
++value;
|
|
else if (*value) /* any other character is an error here */
|
|
return ret_errno(EINVAL);
|
|
|
|
while (isspace(*value))
|
|
++value;
|
|
|
|
/* optional hard limit */
|
|
if (*value) {
|
|
if (!parse_limit_value(&value, &limit_value))
|
|
return ret_errno(EINVAL);
|
|
|
|
limit.rlim_max = limit_value;
|
|
|
|
/* check for trailing garbage */
|
|
while (isspace(*value))
|
|
++value;
|
|
|
|
if (*value)
|
|
return ret_errno(EINVAL);
|
|
} else {
|
|
/* a single value sets both hard and soft limit */
|
|
limit.rlim_max = limit.rlim_cur;
|
|
}
|
|
|
|
/* find existing list element */
|
|
list_for_each_entry(lim, &lxc_conf->limits, head) {
|
|
if (!strequal(key, lim->resource))
|
|
continue;
|
|
|
|
lim->limit = limit;
|
|
return 0;
|
|
}
|
|
|
|
new_lim = zalloc(sizeof(*new_lim));
|
|
if (!new_lim)
|
|
return ret_errno(ENOMEM);
|
|
|
|
new_lim->resource = strdup(key);
|
|
if (!new_lim->resource)
|
|
return ret_errno(ENOMEM);
|
|
|
|
new_lim->limit = limit;
|
|
list_add_tail(&new_lim->head, &lxc_conf->limits);
|
|
move_ptr(new_lim);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_sysctl(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
call_cleaner(free_lxc_sysctl) struct lxc_sysctl *sysctl_elem = NULL;
|
|
struct lxc_sysctl *sysctl, *nsysctl;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_sysctl(key, lxc_conf, NULL);
|
|
|
|
if (!strnequal(key, "lxc.sysctl.", STRLITERALLEN("lxc.sysctl.")))
|
|
return ret_errno(EINVAL);
|
|
|
|
key += STRLITERALLEN("lxc.sysctl.");
|
|
if (is_empty_string(key))
|
|
return ret_errno(EINVAL);
|
|
|
|
/* find existing list element */
|
|
list_for_each_entry_safe(sysctl, nsysctl, &lxc_conf->sysctls, head) {
|
|
__do_free char *replace_value = NULL;
|
|
|
|
if (!strequal(key, sysctl->key))
|
|
continue;
|
|
|
|
replace_value = strdup(value);
|
|
if (!replace_value)
|
|
return ret_errno(EINVAL);
|
|
|
|
free(sysctl->value);
|
|
sysctl->value = move_ptr(replace_value);
|
|
|
|
return 0;
|
|
}
|
|
|
|
sysctl_elem = zalloc(sizeof(*sysctl_elem));
|
|
if (!sysctl_elem)
|
|
return ret_errno(ENOMEM);
|
|
|
|
sysctl_elem->key = strdup(key);
|
|
if (!sysctl_elem->key)
|
|
return ret_errno(ENOMEM);
|
|
|
|
sysctl_elem->value = strdup(value);
|
|
if (!sysctl_elem->value)
|
|
return ret_errno(ENOMEM);
|
|
|
|
list_add_tail(&sysctl_elem->head, &lxc_conf->sysctls);
|
|
move_ptr(sysctl_elem);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_proc(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
call_cleaner(free_lxc_proc) struct lxc_proc *new_proc = NULL;
|
|
const char *subkey;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_proc(key, lxc_conf, NULL);
|
|
|
|
if (!strnequal(key, "lxc.proc.", STRLITERALLEN("lxc.proc.")))
|
|
return ret_errno(EINVAL);
|
|
|
|
subkey = key + STRLITERALLEN("lxc.proc.");
|
|
if (*subkey == '\0')
|
|
return ret_errno(EINVAL);
|
|
|
|
new_proc = zalloc(sizeof(*new_proc));
|
|
if (!new_proc)
|
|
return ret_errno(ENOMEM);
|
|
|
|
new_proc->filename = strdup(subkey);
|
|
if (!new_proc->filename)
|
|
return ret_errno(ENOMEM);
|
|
|
|
new_proc->value = strdup(value);
|
|
if (!new_proc->value)
|
|
return ret_errno(ENOMEM);
|
|
|
|
list_add_tail(&new_proc->head, &lxc_conf->procs);
|
|
move_ptr(new_proc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_idmaps(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free struct id_map *idmap = NULL;
|
|
unsigned long hostid, nsid, range;
|
|
char type;
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_idmaps(lxc_conf);
|
|
|
|
idmap = zalloc(sizeof(*idmap));
|
|
if (!idmap)
|
|
return ret_errno(ENOMEM);
|
|
|
|
ret = parse_idmaps(value, &type, &nsid, &hostid, &range);
|
|
if (ret < 0)
|
|
return log_error_errno(-EINVAL, EINVAL, "Failed to parse id mappings");
|
|
|
|
INFO("Read uid map: type %c nsid %lu hostid %lu range %lu", type, nsid, hostid, range);
|
|
if (type == 'u')
|
|
idmap->idtype = ID_TYPE_UID;
|
|
else if (type == 'g')
|
|
idmap->idtype = ID_TYPE_GID;
|
|
else
|
|
return ret_errno(EINVAL);
|
|
|
|
idmap->hostid = hostid;
|
|
idmap->nsid = nsid;
|
|
idmap->range = range;
|
|
list_add_tail(&idmap->head, &lxc_conf->id_map);
|
|
|
|
if (!lxc_conf->root_nsuid_map && idmap->idtype == ID_TYPE_UID)
|
|
if (idmap->nsid == 0)
|
|
lxc_conf->root_nsuid_map = idmap;
|
|
|
|
if (!lxc_conf->root_nsgid_map && idmap->idtype == ID_TYPE_GID)
|
|
if (idmap->nsid == 0)
|
|
lxc_conf->root_nsgid_map = idmap;
|
|
|
|
move_ptr(idmap);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_mount_fstab(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
if (lxc_config_value_empty(value)) {
|
|
clr_config_mount_fstab(key, lxc_conf, NULL);
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
return set_config_path_item(&lxc_conf->fstab, value);
|
|
}
|
|
|
|
static int set_config_mount_auto(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *autos = NULL;
|
|
char *token;
|
|
int i;
|
|
static struct {
|
|
const char *token;
|
|
int mask;
|
|
int flag;
|
|
} allowed_auto_mounts[] = {
|
|
{ "proc", LXC_AUTO_PROC_MASK, LXC_AUTO_PROC_MIXED },
|
|
{ "proc:mixed", LXC_AUTO_PROC_MASK, LXC_AUTO_PROC_MIXED },
|
|
{ "proc:rw", LXC_AUTO_PROC_MASK, LXC_AUTO_PROC_RW },
|
|
{ "sys", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_MIXED },
|
|
{ "sys:ro", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_RO },
|
|
{ "sys:mixed", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_MIXED },
|
|
{ "sys:rw", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_RW },
|
|
{ "cgroup", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_NOSPEC },
|
|
{ "cgroup:mixed", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_MIXED },
|
|
{ "cgroup:ro", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RO },
|
|
{ "cgroup:rw", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RW },
|
|
{ "cgroup:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_NOSPEC | LXC_AUTO_CGROUP_FORCE },
|
|
{ "cgroup:mixed:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_MIXED | LXC_AUTO_CGROUP_FORCE },
|
|
{ "cgroup:ro:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RO | LXC_AUTO_CGROUP_FORCE },
|
|
{ "cgroup:rw:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RW | LXC_AUTO_CGROUP_FORCE },
|
|
{ "cgroup-full", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_NOSPEC },
|
|
{ "cgroup-full:mixed", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_MIXED },
|
|
{ "cgroup-full:ro", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RO },
|
|
{ "cgroup-full:rw", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RW },
|
|
{ "cgroup-full:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_NOSPEC | LXC_AUTO_CGROUP_FORCE },
|
|
{ "cgroup-full:mixed:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_MIXED | LXC_AUTO_CGROUP_FORCE },
|
|
{ "cgroup-full:ro:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RO | LXC_AUTO_CGROUP_FORCE },
|
|
{ "cgroup-full:rw:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RW | LXC_AUTO_CGROUP_FORCE },
|
|
{ "shmounts:", LXC_AUTO_SHMOUNTS_MASK, LXC_AUTO_SHMOUNTS },
|
|
/*
|
|
* For adding anything that is just a single on/off, but has no
|
|
* options: keep mask and flag identical and just define the
|
|
* enum value as an unused bit so far
|
|
*/
|
|
{ NULL, 0, 0 }
|
|
};
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->auto_mounts = 0;
|
|
return 0;
|
|
}
|
|
|
|
autos = strdup(value);
|
|
if (!autos)
|
|
return ret_errno(ENOMEM);
|
|
|
|
lxc_iterate_parts(token, autos, " \t") {
|
|
bool is_shmounts = false;
|
|
|
|
for (i = 0; allowed_auto_mounts[i].token; i++) {
|
|
if (strequal(allowed_auto_mounts[i].token, token))
|
|
break;
|
|
|
|
if (strequal("shmounts:", allowed_auto_mounts[i].token) &&
|
|
strnequal("shmounts:", token, STRLITERALLEN("shmounts:"))) {
|
|
is_shmounts = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!allowed_auto_mounts[i].token)
|
|
return log_error_errno(-EINVAL, EINVAL, "Invalid filesystem to automount \"%s\"", token);
|
|
|
|
lxc_conf->auto_mounts &= ~allowed_auto_mounts[i].mask;
|
|
lxc_conf->auto_mounts |= allowed_auto_mounts[i].flag;
|
|
|
|
if (is_shmounts) {
|
|
__do_free char *container_path = NULL, *host_path = NULL;
|
|
char *val;
|
|
|
|
val = token + STRLITERALLEN("shmounts:");
|
|
if (*val == '\0')
|
|
return log_error_errno(-EINVAL, EINVAL, "Failed to copy shmounts host path");
|
|
|
|
host_path = strdup(val);
|
|
if (!host_path)
|
|
return log_error_errno(-EINVAL, EINVAL, "Failed to copy shmounts host path");
|
|
|
|
val = strchr(host_path, ':');
|
|
if (!val || *(val + 1) == '\0')
|
|
val = "/dev/.lxc-mounts";
|
|
else
|
|
*val++ = '\0';
|
|
|
|
container_path = strdup(val);
|
|
if(!container_path)
|
|
return log_error_errno(-EINVAL, EINVAL, "Failed to copy shmounts container path");
|
|
|
|
free_disarm(lxc_conf->shmount.path_host);
|
|
lxc_conf->shmount.path_host = move_ptr(host_path);
|
|
|
|
free_disarm(lxc_conf->shmount.path_cont);
|
|
lxc_conf->shmount.path_cont = move_ptr(container_path);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_mount(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *mntelem = NULL;
|
|
__do_free struct string_entry *entry = NULL;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_mount_entries(lxc_conf);
|
|
|
|
entry = zalloc(sizeof(struct string_entry));
|
|
if (!entry)
|
|
return ret_errno(ENOMEM);
|
|
|
|
mntelem = strdup(value);
|
|
if (!mntelem)
|
|
return ret_errno(ENOMEM);
|
|
|
|
entry->val = move_ptr(mntelem);
|
|
list_add_tail(&entry->head, &lxc_conf->mount_entries);
|
|
move_ptr(entry);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int add_elem_to_mount_list(const char *value, struct lxc_conf *lxc_conf) {
|
|
return set_config_mount(NULL, value, lxc_conf, NULL);
|
|
}
|
|
|
|
static int add_cap_entry(struct lxc_conf *conf, char *caps, bool keep)
|
|
{
|
|
char *token;
|
|
|
|
/*
|
|
* In case several capability keep is specified in a single line split
|
|
* these caps in a single element for the list.
|
|
*/
|
|
lxc_iterate_parts(token, caps, " \t") {
|
|
__do_free struct cap_entry *new_cap = NULL;
|
|
int cap;
|
|
|
|
if (strequal(token, "none")) {
|
|
if (!keep)
|
|
return syserror_set(-EINVAL, "The \"none\" keyword is only valid when keeping caps");
|
|
|
|
lxc_clear_config_caps(conf);
|
|
continue;
|
|
}
|
|
|
|
cap = parse_cap(token);
|
|
if (cap < 0) {
|
|
if (cap != -2)
|
|
return syserror_set(-EINVAL, "Invalid capability specified");
|
|
|
|
INFO("Ignoring unknown capability \"%s\"", token);
|
|
continue;
|
|
}
|
|
|
|
new_cap = zalloc(sizeof(struct cap_entry));
|
|
if (!new_cap)
|
|
return ret_errno(ENOMEM);
|
|
|
|
new_cap->cap_name = strdup(token);
|
|
if (!new_cap->cap_name)
|
|
return ret_errno(ENOMEM);
|
|
new_cap->cap = cap;
|
|
|
|
list_add_tail(&new_cap->head, &conf->caps.list);
|
|
move_ptr(new_cap);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_cap_keep(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *caps = NULL;
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_config_caps(lxc_conf);
|
|
|
|
caps = strdup(value);
|
|
if (!caps)
|
|
return ret_errno(ENOMEM);
|
|
|
|
if (!lxc_conf->caps.keep && !list_empty(&lxc_conf->caps.list))
|
|
return syserror_set(-EINVAL, "Keeping and dropping capabilities are mutually exclusive");
|
|
|
|
ret = add_cap_entry(lxc_conf, caps, true);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
lxc_conf->caps.keep = true;
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_cap_drop(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *caps = NULL;
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return lxc_clear_config_caps(lxc_conf);
|
|
|
|
if (lxc_conf->caps.keep)
|
|
return syserror_set(-EINVAL, "Keeping and dropping capabilities are mutually exclusive");
|
|
|
|
caps = strdup(value);
|
|
if (!caps)
|
|
return ret_errno(ENOMEM);
|
|
|
|
ret = add_cap_entry(lxc_conf, caps, false);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
lxc_conf->caps.keep = false;
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_console_path(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return set_config_path_item(&lxc_conf->console.path, value);
|
|
}
|
|
|
|
static int set_config_console_rotate(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->console.log_rotate = 0;
|
|
return 0;
|
|
}
|
|
|
|
ret = lxc_safe_uint(value, &lxc_conf->console.log_rotate);
|
|
if (ret)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_conf->console.log_rotate > 1)
|
|
return log_error_errno(-EINVAL, EINVAL, "The \"lxc.console.rotate\" config key can only be set to 0 or 1");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_console_logfile(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return set_config_path_item(&lxc_conf->console.log_path, value);
|
|
}
|
|
|
|
static int set_config_console_buffer_size(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
long long int size;
|
|
uint64_t buffer_size, pgsz;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->console.buffer_size = 0;
|
|
return 0;
|
|
}
|
|
|
|
/* If the user specified "auto" the default log size is 2^17 = 128 Kib */
|
|
if (strequal(value, "auto")) {
|
|
lxc_conf->console.buffer_size = 1 << 17;
|
|
return 0;
|
|
}
|
|
|
|
ret = parse_byte_size_string(value, &size);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (size < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
/* must be at least a page size */
|
|
pgsz = lxc_getpagesize();
|
|
if ((uint64_t)size < pgsz) {
|
|
NOTICE("Requested ringbuffer size for the console is %lld but must be at least %" PRId64 " bytes. Setting ringbuffer size to %" PRId64 " bytes",
|
|
size, pgsz, pgsz);
|
|
size = pgsz;
|
|
}
|
|
|
|
buffer_size = lxc_find_next_power2((uint64_t)size);
|
|
if (buffer_size == 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (buffer_size != size)
|
|
NOTICE("Passed size was not a power of 2. Rounding log size to next power of two: %" PRIu64 " bytes", buffer_size);
|
|
|
|
lxc_conf->console.buffer_size = buffer_size;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_console_size(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
long long int size;
|
|
uint64_t log_size, pgsz;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->console.log_size = 0;
|
|
return 0;
|
|
}
|
|
|
|
/* If the user specified "auto" the default log size is 2^17 = 128 Kib */
|
|
if (strequal(value, "auto")) {
|
|
lxc_conf->console.log_size = 1 << 17;
|
|
return 0;
|
|
}
|
|
|
|
ret = parse_byte_size_string(value, &size);
|
|
if (ret)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (size < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
/* must be at least a page size */
|
|
pgsz = lxc_getpagesize();
|
|
if ((uint64_t)size < pgsz) {
|
|
NOTICE("Requested ringbuffer size for the console is %lld but must be at least %" PRId64 " bytes. Setting ringbuffer size to %" PRId64 " bytes",
|
|
size, pgsz, pgsz);
|
|
size = pgsz;
|
|
}
|
|
|
|
log_size = lxc_find_next_power2((uint64_t)size);
|
|
if (log_size == 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (log_size != size)
|
|
NOTICE("Passed size was not a power of 2. Rounding log size to next power of two: %" PRIu64 " bytes", log_size);
|
|
|
|
lxc_conf->console.log_size = log_size;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* If we find a lxc.net.[i].hwaddr or lxc.network.hwaddr in the original config
|
|
* file, we expand it in the unexpanded_config, so that after a save_config we
|
|
* store the hwaddr for re-use.
|
|
* This is only called when reading the config file, not when executing a
|
|
* lxc.include.
|
|
* 'x' and 'X' are substituted in-place.
|
|
*/
|
|
static void update_hwaddr(const char *line)
|
|
{
|
|
char *p;
|
|
|
|
line += lxc_char_left_gc(line, strlen(line));
|
|
if (line[0] == '#')
|
|
return;
|
|
|
|
if (!lxc_config_net_is_hwaddr(line))
|
|
return;
|
|
|
|
/* Let config_net_hwaddr raise the error. */
|
|
p = strchr(line, '=');
|
|
if (!p)
|
|
return;
|
|
p++;
|
|
|
|
while (isblank(*p))
|
|
p++;
|
|
|
|
if (!*p)
|
|
return;
|
|
|
|
rand_complete_hwaddr(p);
|
|
}
|
|
|
|
int append_unexp_config_line(const char *line, struct lxc_conf *conf)
|
|
{
|
|
size_t linelen;
|
|
size_t len = conf->unexpanded_len;
|
|
|
|
update_hwaddr(line);
|
|
|
|
linelen = strlen(line);
|
|
while (conf->unexpanded_alloced <= len + linelen + 2) {
|
|
char *tmp;
|
|
|
|
tmp = realloc(conf->unexpanded_config, conf->unexpanded_alloced + 1024);
|
|
if (!tmp)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!conf->unexpanded_config)
|
|
*tmp = '\0';
|
|
|
|
conf->unexpanded_config = tmp;
|
|
conf->unexpanded_alloced += 1024;
|
|
}
|
|
|
|
memcpy(conf->unexpanded_config + conf->unexpanded_len, line, linelen);
|
|
conf->unexpanded_len += linelen;
|
|
if (line[linelen - 1] != '\n')
|
|
conf->unexpanded_config[conf->unexpanded_len++] = '\n';
|
|
conf->unexpanded_config[conf->unexpanded_len] = '\0';
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int do_includedir(const char *dirp, struct lxc_conf *lxc_conf)
|
|
{
|
|
__do_closedir DIR *dir = NULL;
|
|
struct dirent *direntp;
|
|
int len, ret;
|
|
|
|
dir = opendir(dirp);
|
|
if (!dir)
|
|
return errno == ENOENT ? 0 : -errno;
|
|
|
|
while ((direntp = readdir(dir))) {
|
|
const char *fnam;
|
|
char path[PATH_MAX];
|
|
|
|
fnam = direntp->d_name;
|
|
if (strequal(fnam, "."))
|
|
continue;
|
|
|
|
if (strequal(fnam, ".."))
|
|
continue;
|
|
|
|
len = strlen(fnam);
|
|
if (len < 6 || !strnequal(fnam + len - 5, ".conf", 5))
|
|
continue;
|
|
|
|
len = strnprintf(path, sizeof(path), "%s/%s", dirp, fnam);
|
|
if (len < 0)
|
|
return ret_errno(EIO);
|
|
|
|
ret = lxc_config_read(path, lxc_conf, true);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_includefiles(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
if (lxc_config_value_empty(value)) {
|
|
clr_config_includefiles(key, lxc_conf, NULL);
|
|
return 0;
|
|
}
|
|
|
|
if (value[strlen(value)-1] == '/' || is_dir(value))
|
|
return do_includedir(value, lxc_conf);
|
|
|
|
return lxc_config_read(value, lxc_conf, true);
|
|
}
|
|
|
|
static int set_config_rootfs_path(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *dup = NULL;
|
|
int ret;
|
|
char *tmp;
|
|
const char *container_path;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
free(lxc_conf->rootfs.path);
|
|
lxc_conf->rootfs.path = NULL;
|
|
return 0;
|
|
}
|
|
|
|
dup = strdup(value);
|
|
if (!dup)
|
|
return ret_errno(ENOMEM);
|
|
|
|
/* Split <storage type>:<container path> into <storage type> and
|
|
* <container path>. Set "rootfs.bdev_type" to <storage type> and
|
|
* "rootfs.path" to <container path>.
|
|
*/
|
|
tmp = strchr(dup, ':');
|
|
if (tmp) {
|
|
*tmp = '\0';
|
|
|
|
ret = set_config_path_item(&lxc_conf->rootfs.bdev_type, dup);
|
|
if (ret < 0)
|
|
return ret_errno(ENOMEM);
|
|
|
|
tmp++;
|
|
container_path = tmp;
|
|
} else {
|
|
container_path = value;
|
|
}
|
|
|
|
return set_config_path_item(&lxc_conf->rootfs.path, container_path);
|
|
}
|
|
|
|
static int set_config_rootfs_managed(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return set_config_bool_item(&lxc_conf->rootfs.managed, value, true);
|
|
}
|
|
|
|
static int set_config_rootfs_mount(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
return set_config_path_item(&lxc_conf->rootfs.mount, value);
|
|
}
|
|
|
|
static int set_config_rootfs_options(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *dup = NULL, *raw_options = NULL;
|
|
struct lxc_rootfs *rootfs = &lxc_conf->rootfs;
|
|
struct lxc_mount_options *mnt_opts = &rootfs->mnt_opts;
|
|
int ret;
|
|
|
|
clr_config_rootfs_options(key, lxc_conf, data);
|
|
if (lxc_config_value_empty(value))
|
|
return 0;
|
|
|
|
ret = set_config_string_item(&raw_options, value);
|
|
if (ret < 0)
|
|
return ret_errno(ENOMEM);
|
|
|
|
dup = strdup(value);
|
|
if (!dup)
|
|
return -ENOMEM;
|
|
|
|
ret = parse_lxc_mount_attrs(mnt_opts, dup);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Make sure we're only valid LXC specific mount options. */
|
|
if (mnt_opts->create_dir || mnt_opts->create_file ||
|
|
mnt_opts->optional || mnt_opts->relative)
|
|
return syserror_set(-EINVAL, "Invalid LXC specific mount option for rootfs mount");
|
|
|
|
ret = parse_mount_attrs(mnt_opts, dup);
|
|
if (ret < 0)
|
|
return ret_errno(EINVAL);
|
|
|
|
rootfs->mnt_opts.raw_options = move_ptr(raw_options);
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_uts_name(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free struct utsname *utsname = NULL;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
clr_config_uts_name(key, lxc_conf, NULL);
|
|
return 0;
|
|
}
|
|
|
|
utsname = zalloc(sizeof(*utsname));
|
|
if (!utsname)
|
|
return ret_errno(ENOMEM);
|
|
|
|
if (strlen(value) >= sizeof(utsname->nodename))
|
|
return ret_errno(EINVAL);
|
|
|
|
(void)strlcpy(utsname->nodename, value, sizeof(utsname->nodename));
|
|
free(lxc_conf->utsname);
|
|
lxc_conf->utsname = move_ptr(utsname);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_namespace_clone(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *ns = NULL;
|
|
char *token;
|
|
int cloneflag = 0;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_namespace_clone(key, lxc_conf, data);
|
|
|
|
if (lxc_conf->ns_keep != 0)
|
|
return log_error_errno(-EINVAL, EINVAL, "Cannot set both \"lxc.namespace.clone\" and \"lxc.namespace.keep\"");
|
|
|
|
ns = strdup(value);
|
|
if (!ns)
|
|
return ret_errno(ENOMEM);
|
|
|
|
lxc_iterate_parts(token, ns, " \t") {
|
|
token += lxc_char_left_gc(token, strlen(token));
|
|
token[lxc_char_right_gc(token, strlen(token))] = '\0';
|
|
cloneflag = lxc_namespace_2_cloneflag(token);
|
|
if (cloneflag < 0)
|
|
return ret_errno(EINVAL);
|
|
lxc_conf->ns_clone |= cloneflag;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_namespace_keep(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
__do_free char *ns = NULL;
|
|
char *token;
|
|
int cloneflag = 0;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_namespace_keep(key, lxc_conf, data);
|
|
|
|
if (lxc_conf->ns_clone != 0)
|
|
return log_error_errno(-EINVAL, EINVAL, "Cannot set both \"lxc.namespace.clone\" and \"lxc.namespace.keep\"");
|
|
|
|
ns = strdup(value);
|
|
if (!ns)
|
|
return ret_errno(ENOMEM);
|
|
|
|
lxc_iterate_parts(token, ns, " \t") {
|
|
token += lxc_char_left_gc(token, strlen(token));
|
|
token[lxc_char_right_gc(token, strlen(token))] = '\0';
|
|
cloneflag = lxc_namespace_2_cloneflag(token);
|
|
if (cloneflag < 0)
|
|
return ret_errno(EINVAL);
|
|
lxc_conf->ns_keep |= cloneflag;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_time_offset_boot(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
char *unit;
|
|
int64_t offset = 0;
|
|
char buf[STRLITERALLEN("ms") + 1];
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_time_offset_boot(key, lxc_conf, data);
|
|
|
|
ret = lxc_safe_int64_residual(value, &offset, 10, buf, sizeof(buf));
|
|
if (ret)
|
|
return ret;
|
|
|
|
unit = lxc_trim_whitespace_in_place(buf);
|
|
if (strequal(unit, "h")) {
|
|
if (!multiply_overflow(offset, 3600, &lxc_conf->timens.s_boot))
|
|
return ret_errno(EOVERFLOW);
|
|
} else if (strequal(unit, "m")) {
|
|
if (!multiply_overflow(offset, 60, &lxc_conf->timens.s_boot))
|
|
return ret_errno(EOVERFLOW);
|
|
} else if (strequal(unit, "s")) {
|
|
lxc_conf->timens.s_boot = offset;
|
|
} else if (strequal(unit, "ms")) {
|
|
if (!multiply_overflow(offset, 1000000, &lxc_conf->timens.ns_boot))
|
|
return ret_errno(EOVERFLOW);
|
|
} else if (strequal(unit, "us")) {
|
|
if (!multiply_overflow(offset, 1000, &lxc_conf->timens.ns_boot))
|
|
return ret_errno(EOVERFLOW);
|
|
} else if (strequal(unit, "ns")) {
|
|
lxc_conf->timens.ns_boot = offset;
|
|
} else {
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_time_offset_monotonic(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
char *unit;
|
|
int64_t offset = 0;
|
|
char buf[STRLITERALLEN("ms") + 1];
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_time_offset_monotonic(key, lxc_conf, data);
|
|
|
|
ret = lxc_safe_int64_residual(value, &offset, 10, buf, sizeof(buf));
|
|
if (ret)
|
|
return ret;
|
|
|
|
unit = lxc_trim_whitespace_in_place(buf);
|
|
if (strequal(unit, "h")) {
|
|
if (!multiply_overflow(offset, 3600, &lxc_conf->timens.s_monotonic))
|
|
return ret_errno(EOVERFLOW);
|
|
} else if (strequal(unit, "m")) {
|
|
if (!multiply_overflow(offset, 60, &lxc_conf->timens.s_monotonic))
|
|
return ret_errno(EOVERFLOW);
|
|
} else if (strequal(unit, "s")) {
|
|
lxc_conf->timens.s_monotonic = offset;
|
|
} else if (strequal(unit, "ms")) {
|
|
if (!multiply_overflow(offset, 1000000, &lxc_conf->timens.ns_monotonic))
|
|
return ret_errno(EOVERFLOW);
|
|
} else if (strequal(unit, "us")) {
|
|
if (!multiply_overflow(offset, 1000, &lxc_conf->timens.ns_monotonic))
|
|
return ret_errno(EOVERFLOW);
|
|
} else if (strequal(unit, "ns")) {
|
|
lxc_conf->timens.ns_monotonic = offset;
|
|
} else {
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_namespace_share(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ns_idx;
|
|
const char *namespace;
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_namespace_share(key, lxc_conf, data);
|
|
|
|
namespace = key + STRLITERALLEN("lxc.namespace.share.");
|
|
if (is_empty_string(namespace))
|
|
return ret_errno(EINVAL);
|
|
|
|
ns_idx = lxc_namespace_2_ns_idx(namespace);
|
|
if (ns_idx < 0)
|
|
return ns_idx;
|
|
|
|
return set_config_string_item(&lxc_conf->ns_share[ns_idx], value);
|
|
}
|
|
|
|
struct parse_line_conf {
|
|
struct lxc_conf *conf;
|
|
bool from_include;
|
|
};
|
|
|
|
static int parse_line(char *buffer, void *data)
|
|
{
|
|
__do_free char *linep = NULL;
|
|
char *dot, *key, *line, *value;
|
|
bool empty_line;
|
|
struct lxc_config_t *config;
|
|
int ret;
|
|
char *dup = buffer;
|
|
struct parse_line_conf *plc = data;
|
|
|
|
if (!plc->conf)
|
|
return syserror_set(-EINVAL, "Missing config");
|
|
|
|
/* If there are newlines in the config file we should keep them. */
|
|
empty_line = lxc_is_line_empty(dup);
|
|
if (empty_line)
|
|
dup = "\n";
|
|
|
|
/* We have to dup the buffer otherwise, at the re-exec for reboot we
|
|
* modified the original string on the stack by replacing '=' by '\0'
|
|
* below.
|
|
*/
|
|
linep = line = strdup(dup);
|
|
if (!line)
|
|
return ret_errno(ENOMEM);
|
|
|
|
if (!plc->from_include) {
|
|
ret = append_unexp_config_line(line, plc->conf);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (empty_line)
|
|
return 0;
|
|
|
|
line += lxc_char_left_gc(line, strlen(line));
|
|
|
|
/* ignore comments */
|
|
if (line[0] == '#')
|
|
return 0;
|
|
|
|
/* martian option - don't add it to the config itself */
|
|
if (!strnequal(line, "lxc.", 4))
|
|
return 0;
|
|
|
|
dot = strchr(line, '=');
|
|
if (!dot)
|
|
return log_error_errno(-EINVAL, EINVAL, "Invalid configuration line: %s", line);
|
|
|
|
*dot = '\0';
|
|
value = dot + 1;
|
|
|
|
key = line;
|
|
key[lxc_char_right_gc(key, strlen(key))] = '\0';
|
|
|
|
value += lxc_char_left_gc(value, strlen(value));
|
|
value[lxc_char_right_gc(value, strlen(value))] = '\0';
|
|
|
|
if (*value == '\'' || *value == '\"') {
|
|
size_t len;
|
|
|
|
len = strlen(value);
|
|
if (len > 1 && value[len - 1] == *value) {
|
|
value[len - 1] = '\0';
|
|
value++;
|
|
}
|
|
}
|
|
|
|
config = lxc_get_config(key);
|
|
return config->set(key, value, plc->conf, NULL);
|
|
}
|
|
|
|
static struct new_config_item *parse_new_conf_line(char *buffer)
|
|
{
|
|
__do_free char *k = NULL, *linep = NULL, *v = NULL;
|
|
__do_free struct new_config_item *new = NULL;
|
|
char *dup = buffer;
|
|
char *dot, *key, *line, *value;
|
|
|
|
if (is_empty_string(buffer))
|
|
return log_error_errno(NULL, EINVAL, "Empty configuration line");
|
|
|
|
linep = line = strdup(dup);
|
|
if (!line)
|
|
return NULL;
|
|
|
|
line += lxc_char_left_gc(line, strlen(line));
|
|
|
|
/* martian option - don't add it to the config itself */
|
|
if (!strnequal(line, "lxc.", 4))
|
|
return 0;
|
|
|
|
dot = strchr(line, '=');
|
|
if (!dot)
|
|
return log_error_errno(NULL, EINVAL, "Invalid configuration line: %s", line);
|
|
|
|
*dot = '\0';
|
|
value = dot + 1;
|
|
|
|
key = line;
|
|
key[lxc_char_right_gc(key, strlen(key))] = '\0';
|
|
|
|
value += lxc_char_left_gc(value, strlen(value));
|
|
value[lxc_char_right_gc(value, strlen(value))] = '\0';
|
|
|
|
if (*value == '\'' || *value == '\"') {
|
|
size_t len;
|
|
|
|
len = strlen(value);
|
|
if (len > 1 && value[len - 1] == *value) {
|
|
value[len - 1] = '\0';
|
|
value++;
|
|
}
|
|
}
|
|
|
|
new = zalloc(sizeof(struct new_config_item));
|
|
if (!new)
|
|
return NULL;
|
|
|
|
k = strdup(key);
|
|
if (!k)
|
|
return NULL;
|
|
|
|
v = strdup(value);
|
|
if (!v)
|
|
return NULL;
|
|
|
|
new->key = move_ptr(k);
|
|
new->val = move_ptr(v);
|
|
return move_ptr(new);
|
|
}
|
|
|
|
int lxc_config_read(const char *file, struct lxc_conf *conf, bool from_include)
|
|
{
|
|
struct parse_line_conf plc;
|
|
|
|
if (!conf)
|
|
return syserror_set(-EINVAL, "Missing config");
|
|
|
|
plc.conf = conf;
|
|
plc.from_include = from_include;
|
|
|
|
/* Catch only the top level config file name in the structure. */
|
|
if (!conf->rcfile)
|
|
conf->rcfile = strdup(file);
|
|
|
|
return lxc_file_for_each_line_mmap(file, parse_line, &plc);
|
|
}
|
|
|
|
int lxc_config_define_add(struct lxc_list *defines, char *arg)
|
|
{
|
|
__do_free struct lxc_list *dent = NULL;
|
|
|
|
dent = lxc_list_new();
|
|
if (!dent)
|
|
return ret_errno(ENOMEM);
|
|
|
|
dent->elem = parse_new_conf_line(arg);
|
|
if (!dent->elem)
|
|
return ret_errno(ENOMEM);
|
|
|
|
lxc_list_add_tail(defines, move_ptr(dent));
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool lxc_config_define_load(struct lxc_list *defines, struct lxc_container *c)
|
|
{
|
|
struct lxc_list *it;
|
|
bool bret = true;
|
|
|
|
lxc_list_for_each(it, defines) {
|
|
struct new_config_item *new_item = it->elem;
|
|
bret = c->set_config_item(c, new_item->key, new_item->val);
|
|
if (!bret)
|
|
break;
|
|
}
|
|
|
|
#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
|
|
lxc_config_define_free(defines);
|
|
#endif /* !FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION */
|
|
|
|
return bret;
|
|
}
|
|
|
|
void lxc_config_define_free(struct lxc_list *defines)
|
|
{
|
|
struct lxc_list *it, *next;
|
|
|
|
lxc_list_for_each_safe(it, defines, next) {
|
|
struct new_config_item *new_item = it->elem;
|
|
free(new_item->key);
|
|
free(new_item->val);
|
|
lxc_list_del(it);
|
|
free(it->elem);
|
|
free(it);
|
|
}
|
|
}
|
|
|
|
int lxc_config_parse_arch(const char *arch, signed long *persona)
|
|
{
|
|
static struct per_name {
|
|
char *name;
|
|
unsigned long per;
|
|
} pername[] = {
|
|
{ "arm", PER_LINUX32 },
|
|
{ "armel", PER_LINUX32 },
|
|
{ "armhf", PER_LINUX32 },
|
|
{ "armv7l", PER_LINUX32 },
|
|
{ "athlon", PER_LINUX32 },
|
|
{ "i386", PER_LINUX32 },
|
|
{ "i486", PER_LINUX32 },
|
|
{ "i586", PER_LINUX32 },
|
|
{ "i686", PER_LINUX32 },
|
|
{ "linux32", PER_LINUX32 },
|
|
{ "mips", PER_LINUX32 },
|
|
{ "mipsel", PER_LINUX32 },
|
|
{ "ppc", PER_LINUX32 },
|
|
{ "powerpc", PER_LINUX32 },
|
|
{ "x86", PER_LINUX32 },
|
|
{ "aarch64", PER_LINUX },
|
|
{ "amd64", PER_LINUX },
|
|
{ "arm64", PER_LINUX },
|
|
{ "linux64", PER_LINUX },
|
|
{ "mips64", PER_LINUX },
|
|
{ "mips64el", PER_LINUX },
|
|
{ "ppc64", PER_LINUX },
|
|
{ "ppc64el", PER_LINUX },
|
|
{ "ppc64le", PER_LINUX },
|
|
{ "powerpc64", PER_LINUX },
|
|
{ "s390x", PER_LINUX },
|
|
{ "x86_64", PER_LINUX },
|
|
};
|
|
|
|
for (int i = 0; i < ARRAY_SIZE(pername); i++) {
|
|
if (!strequal(pername[i].name, arch))
|
|
continue;
|
|
|
|
*persona = pername[i].per;
|
|
return 0;
|
|
}
|
|
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
int lxc_fill_elevated_privileges(char *flaglist, unsigned int *flags)
|
|
{
|
|
unsigned int flags_tmp = 0;
|
|
char *token;
|
|
struct {
|
|
const char *token;
|
|
int flag;
|
|
} all_privs[] = {
|
|
{ "CGROUP", LXC_ATTACH_MOVE_TO_CGROUP },
|
|
{ "CAP", LXC_ATTACH_DROP_CAPABILITIES },
|
|
{ "LSM", LXC_ATTACH_LSM_EXEC },
|
|
{ NULL, 0 }
|
|
};
|
|
|
|
if (!flaglist) {
|
|
/*
|
|
* For the sake of backward compatibility, keep all privileges
|
|
* if no specific privileges are specified.
|
|
*/
|
|
for (unsigned int i = 0; all_privs[i].token; i++)
|
|
flags_tmp |= all_privs[i].flag;
|
|
|
|
*flags = flags_tmp;
|
|
return 0;
|
|
}
|
|
|
|
lxc_iterate_parts(token, flaglist, "|") {
|
|
bool valid_token = false;
|
|
|
|
for (unsigned int i = 0; all_privs[i].token; i++) {
|
|
if (!strequal(all_privs[i].token, token))
|
|
continue;
|
|
|
|
valid_token = true;
|
|
flags_tmp |= all_privs[i].flag;
|
|
}
|
|
|
|
if (!valid_token)
|
|
return syserror_set(-EINVAL, "Invalid elevated privilege \"%s\" requested", token);
|
|
}
|
|
|
|
*flags = flags_tmp;
|
|
return 0;
|
|
}
|
|
|
|
/* Write out a configuration file. */
|
|
int write_config(int fd, const struct lxc_conf *conf)
|
|
{
|
|
int ret;
|
|
size_t len = conf->unexpanded_len;
|
|
|
|
if (len == 0)
|
|
return 0;
|
|
|
|
ret = lxc_write_nointr(fd, conf->unexpanded_config, len);
|
|
if (ret < 0)
|
|
return log_error_errno(-errno, errno, "Failed to write configuration file");
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool do_append_unexp_config_line(struct lxc_conf *conf, const char *key,
|
|
const char *v)
|
|
{
|
|
__do_free char *tmp = NULL;
|
|
int ret;
|
|
size_t len;
|
|
|
|
len = strlen(key) + strlen(v) + 4;
|
|
tmp = must_realloc(NULL, len);
|
|
|
|
if (lxc_config_value_empty(v))
|
|
ret = strnprintf(tmp, len, "%s =", key);
|
|
else
|
|
ret = strnprintf(tmp, len, "%s = %s", key, v);
|
|
if (ret < 0)
|
|
return false;
|
|
|
|
/* Save the line verbatim into unexpanded_conf */
|
|
if (append_unexp_config_line(tmp, conf))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
void clear_unexp_config_line(struct lxc_conf *conf, const char *key,
|
|
bool rm_subkeys)
|
|
{
|
|
char *lend;
|
|
char *lstart = conf->unexpanded_config;
|
|
|
|
if (!conf->unexpanded_config)
|
|
return;
|
|
|
|
while (*lstart) {
|
|
lend = strchr(lstart, '\n');
|
|
char v;
|
|
|
|
if (!lend)
|
|
lend = lstart + strlen(lstart);
|
|
else
|
|
lend++;
|
|
|
|
if (!strnequal(lstart, key, strlen(key))) {
|
|
lstart = lend;
|
|
continue;
|
|
}
|
|
|
|
if (!rm_subkeys) {
|
|
v = lstart[strlen(key)];
|
|
if (!isspace(v) && v != '=') {
|
|
lstart = lend;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
conf->unexpanded_len -= (lend - lstart);
|
|
|
|
if (*lend == '\0') {
|
|
*lstart = '\0';
|
|
return;
|
|
}
|
|
|
|
memmove(lstart, lend, strlen(lend) + 1);
|
|
}
|
|
}
|
|
|
|
bool clone_update_unexp_ovl_paths(struct lxc_conf *conf, const char *oldpath,
|
|
const char *newpath, const char *oldname,
|
|
const char *newname, const char *ovldir)
|
|
{
|
|
__do_free char *newdir = NULL, *olddir = NULL;
|
|
char *lstart = conf->unexpanded_config;
|
|
const char *key = "lxc.mount.entry";
|
|
int ret;
|
|
char *lend, *p, *q;
|
|
size_t newdirlen, olddirlen;
|
|
|
|
olddirlen = strlen(ovldir) + strlen(oldpath) + strlen(oldname) + 2;
|
|
olddir = must_realloc(NULL, olddirlen + 1);
|
|
ret = strnprintf(olddir, olddirlen + 1, "%s=%s/%s", ovldir, oldpath, oldname);
|
|
if (ret < 0)
|
|
return false;
|
|
|
|
newdirlen = strlen(ovldir) + strlen(newpath) + strlen(newname) + 2;
|
|
newdir = must_realloc(NULL, newdirlen + 1);
|
|
ret = strnprintf(newdir, newdirlen + 1, "%s=%s/%s", ovldir, newpath, newname);
|
|
if (ret < 0)
|
|
return false;
|
|
|
|
if (!conf->unexpanded_config)
|
|
return true;
|
|
|
|
while (*lstart) {
|
|
lend = strchr(lstart, '\n');
|
|
if (!lend)
|
|
lend = lstart + strlen(lstart);
|
|
else
|
|
lend++;
|
|
|
|
if (!strnequal(lstart, key, strlen(key)))
|
|
goto next;
|
|
|
|
p = strchr(lstart + strlen(key), '=');
|
|
if (!p)
|
|
goto next;
|
|
p++;
|
|
|
|
while (isblank(*p))
|
|
p++;
|
|
|
|
if (p >= lend)
|
|
goto next;
|
|
|
|
/* Whenever a lxc.mount.entry entry is found in a line we check
|
|
* if the substring "overlay" is present before doing any
|
|
* further work. We check for "overlay" because substrings need
|
|
* to have at least one space before them in a valid overlay
|
|
* lxc.mount.entry (/A B overlay). When the space before is
|
|
* missing it is very likely that these substrings are part of a
|
|
* path or something else. (Checking q >= lend ensures that we
|
|
* only count matches in the current line.) */
|
|
q = strstr(p, " overlay");
|
|
if (!q || q >= lend)
|
|
goto next;
|
|
|
|
if (!(q = strstr(p, olddir)) || (q >= lend))
|
|
goto next;
|
|
|
|
/* replace the olddir with newdir */
|
|
if (olddirlen >= newdirlen) {
|
|
size_t diff = olddirlen - newdirlen;
|
|
memcpy(q, newdir, newdirlen);
|
|
|
|
if (olddirlen != newdirlen) {
|
|
memmove(q + newdirlen, q + newdirlen + diff,
|
|
strlen(q) - newdirlen - diff + 1);
|
|
lend -= diff;
|
|
conf->unexpanded_len -= diff;
|
|
}
|
|
} else {
|
|
char *new;
|
|
size_t diff = newdirlen - olddirlen;
|
|
size_t oldlen = conf->unexpanded_len;
|
|
size_t newlen = oldlen + diff;
|
|
size_t poffset = q - conf->unexpanded_config;
|
|
|
|
new = realloc(conf->unexpanded_config, newlen + 1);
|
|
if (!new)
|
|
return false;
|
|
|
|
conf->unexpanded_len = newlen;
|
|
conf->unexpanded_alloced = newlen + 1;
|
|
new[newlen - 1] = '\0';
|
|
lend = new + (lend - conf->unexpanded_config);
|
|
|
|
/* Move over the remainder to make room for the newdir.
|
|
*/
|
|
memmove(new + poffset + newdirlen,
|
|
new + poffset + olddirlen,
|
|
oldlen - poffset - olddirlen + 1);
|
|
conf->unexpanded_config = new;
|
|
|
|
memcpy(new + poffset, newdir, newdirlen);
|
|
lend += diff;
|
|
}
|
|
|
|
next:
|
|
lstart = lend;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool clone_update_unexp_hooks(struct lxc_conf *conf, const char *oldpath,
|
|
const char *newpath, const char *oldname,
|
|
const char *newname)
|
|
{
|
|
__do_free char *newdir = NULL, *olddir = NULL;
|
|
char *lstart = conf->unexpanded_config;
|
|
const char *key = "lxc.hook";
|
|
int ret;
|
|
char *lend, *p;
|
|
size_t newdirlen, olddirlen;
|
|
|
|
olddirlen = strlen(oldpath) + strlen(oldname) + 1;
|
|
olddir = must_realloc(NULL, olddirlen + 1);
|
|
ret = strnprintf(olddir, olddirlen + 1, "%s/%s", oldpath, oldname);
|
|
if (ret < 0)
|
|
return false;
|
|
|
|
newdirlen = strlen(newpath) + strlen(newname) + 1;
|
|
newdir = must_realloc(NULL, newdirlen + 1);
|
|
ret = strnprintf(newdir, newdirlen + 1, "%s/%s", newpath, newname);
|
|
if (ret < 0)
|
|
return false;
|
|
|
|
if (!conf->unexpanded_config)
|
|
return true;
|
|
|
|
while (*lstart) {
|
|
lend = strchr(lstart, '\n');
|
|
if (!lend)
|
|
lend = lstart + strlen(lstart);
|
|
else
|
|
lend++;
|
|
|
|
if (!strnequal(lstart, key, strlen(key)))
|
|
goto next;
|
|
|
|
p = strchr(lstart + strlen(key), '=');
|
|
if (!p)
|
|
goto next;
|
|
p++;
|
|
|
|
while (isblank(*p))
|
|
p++;
|
|
|
|
if (p >= lend)
|
|
goto next;
|
|
|
|
if (!strnequal(p, olddir, strlen(olddir)))
|
|
goto next;
|
|
|
|
/* replace the olddir with newdir */
|
|
if (olddirlen >= newdirlen) {
|
|
size_t diff = olddirlen - newdirlen;
|
|
memcpy(p, newdir, newdirlen);
|
|
|
|
if (olddirlen != newdirlen) {
|
|
memmove(p + newdirlen, p + newdirlen + diff,
|
|
strlen(p) - newdirlen - diff + 1);
|
|
lend -= diff;
|
|
conf->unexpanded_len -= diff;
|
|
}
|
|
} else {
|
|
char *new;
|
|
size_t diff = newdirlen - olddirlen;
|
|
size_t oldlen = conf->unexpanded_len;
|
|
size_t newlen = oldlen + diff;
|
|
size_t poffset = p - conf->unexpanded_config;
|
|
|
|
new = realloc(conf->unexpanded_config, newlen + 1);
|
|
if (!new)
|
|
return false;
|
|
|
|
conf->unexpanded_len = newlen;
|
|
conf->unexpanded_alloced = newlen + 1;
|
|
new[newlen - 1] = '\0';
|
|
lend = new + (lend - conf->unexpanded_config);
|
|
|
|
/* Move over the remainder to make room for the newdir.
|
|
*/
|
|
memmove(new + poffset + newdirlen,
|
|
new + poffset + olddirlen,
|
|
oldlen - poffset - olddirlen + 1);
|
|
conf->unexpanded_config = new;
|
|
|
|
memcpy(new + poffset, newdir, newdirlen);
|
|
lend += diff;
|
|
}
|
|
|
|
next:
|
|
lstart = lend;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
#define DO(cmd) \
|
|
{ \
|
|
if (!(cmd)) { \
|
|
ERROR("Error writing to new config"); \
|
|
return false; \
|
|
} \
|
|
}
|
|
|
|
/* This is called only from clone. We wish to update all hwaddrs in the
|
|
* unexpanded config file. We can't/don't want to update any which come from
|
|
* lxc.includes (there shouldn't be any).
|
|
* We can't just walk the c->lxc-conf->network list because that includes netifs
|
|
* from the include files. So we update the ones which we find in the unexp
|
|
* config file, then find the original macaddr in the conf->network, and update
|
|
* that to the same value.
|
|
*/
|
|
bool network_new_hwaddrs(struct lxc_conf *conf)
|
|
{
|
|
char *lend, *p, *p2;
|
|
char *lstart = conf->unexpanded_config;
|
|
|
|
if (!conf->unexpanded_config)
|
|
return true;
|
|
|
|
while (*lstart) {
|
|
char newhwaddr[18], oldhwaddr[17];
|
|
struct lxc_netdev *netdev;
|
|
|
|
lend = strchr(lstart, '\n');
|
|
if (!lend)
|
|
lend = lstart + strlen(lstart);
|
|
else
|
|
lend++;
|
|
|
|
if (!lxc_config_net_is_hwaddr(lstart)) {
|
|
lstart = lend;
|
|
continue;
|
|
}
|
|
|
|
p = strchr(lstart, '=');
|
|
if (!p) {
|
|
lstart = lend;
|
|
continue;
|
|
}
|
|
|
|
p++;
|
|
while (isblank(*p))
|
|
p++;
|
|
if (!*p)
|
|
return true;
|
|
|
|
p2 = p;
|
|
while (*p2 && !isblank(*p2) && *p2 != '\n')
|
|
p2++;
|
|
|
|
if ((p2 - p) != 17) {
|
|
WARN("Bad hwaddr entry");
|
|
lstart = lend;
|
|
continue;
|
|
}
|
|
|
|
memcpy(oldhwaddr, p, 17);
|
|
|
|
if (!new_hwaddr(newhwaddr))
|
|
return false;
|
|
|
|
memcpy(p, newhwaddr, 17);
|
|
list_for_each_entry(netdev, &conf->netdevs, head) {
|
|
if (netdev->hwaddr && memcmp(oldhwaddr, netdev->hwaddr, 17) == 0)
|
|
memcpy(netdev->hwaddr, newhwaddr, 17);
|
|
}
|
|
|
|
lstart = lend;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static int set_config_ephemeral(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->ephemeral = 0;
|
|
return 0;
|
|
}
|
|
|
|
ret = lxc_safe_uint(value, &lxc_conf->ephemeral);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (lxc_conf->ephemeral > 1)
|
|
return ret_errno(EINVAL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_config_log_syslog(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int facility;
|
|
|
|
if (lxc_conf->syslog)
|
|
free_disarm(lxc_conf->syslog);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return 0;
|
|
|
|
facility = lxc_syslog_priority_to_int(value);
|
|
if (facility == -EINVAL)
|
|
return ret_errno(EINVAL);
|
|
|
|
lxc_log_syslog(facility);
|
|
|
|
return set_config_string_item(&lxc_conf->syslog, value);
|
|
}
|
|
|
|
static int set_config_no_new_privs(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ret;
|
|
unsigned int v;
|
|
|
|
if (lxc_config_value_empty(value)) {
|
|
lxc_conf->no_new_privs = false;
|
|
return 0;
|
|
}
|
|
|
|
ret = lxc_safe_uint(value, &v);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (v > 1)
|
|
return ret_errno(EINVAL);
|
|
|
|
lxc_conf->no_new_privs = v ? true : false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Callbacks to get configuration items. */
|
|
static int get_config_personality(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
int len = 0;
|
|
|
|
switch (c->personality) {
|
|
case PER_LINUX32:
|
|
strprint(retv, inlen, "i686");
|
|
break;
|
|
case PER_LINUX:
|
|
strprint(retv, inlen, "x86_64");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_pty_max(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_size_t(c, retv, inlen, c->pty_max);
|
|
}
|
|
|
|
static int get_config_tty_max(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_size_t(c, retv, inlen, c->ttys.max);
|
|
}
|
|
|
|
static int get_config_tty_dir(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->ttys.dir);
|
|
}
|
|
|
|
static int get_config_apparmor_profile(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
return lxc_get_conf_str(retv, inlen, c->lsm_aa_profile);
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static int get_config_apparmor_allow_incomplete(const char *key, char *retv,
|
|
int inlen, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
return lxc_get_conf_int(c, retv, inlen, c->lsm_aa_allow_incomplete);
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static int get_config_apparmor_allow_nesting(const char *key, char *retv,
|
|
int inlen, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
return lxc_get_conf_int(c, retv, inlen, c->lsm_aa_allow_nesting);
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static int get_config_apparmor_raw(const char *key, char *retv,
|
|
int inlen, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
int len;
|
|
struct string_entry *entry;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
list_for_each_entry(entry, &c->lsm_aa_raw, head) {
|
|
strprint(retv, inlen, "%s\n", entry->val);
|
|
}
|
|
|
|
return fulllen;
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static int get_config_selinux_context(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#if HAVE_SELINUX
|
|
return lxc_get_conf_str(retv, inlen, c->lsm_se_context);
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without SELinux support");
|
|
#endif
|
|
}
|
|
|
|
static int get_config_selinux_context_keyring(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#if HAVE_SELINUX
|
|
return lxc_get_conf_str(retv, inlen, c->lsm_se_keyring_context);
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without SELinux support");
|
|
#endif
|
|
}
|
|
|
|
static int get_config_keyring_session(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_bool(c, retv, inlen, c->keyring_disable_session);
|
|
}
|
|
|
|
|
|
/* If you ask for a specific cgroup value, i.e. lxc.cgroup.devices.list, then
|
|
* just the value(s) will be printed. Since there still could be more than one,
|
|
* it is newline-separated.
|
|
* (Maybe that's ambiguous, since some values, i.e. devices.list, will already
|
|
* have newlines?)
|
|
* If you ask for 'lxc.cgroup", then all cgroup entries will be printed, in
|
|
* 'lxc.cgroup.subsystem.key = value' format.
|
|
*/
|
|
static int __get_config_cgroup_controller(const char *key, char *retv,
|
|
int inlen, struct lxc_conf *c,
|
|
int version)
|
|
{
|
|
int fulllen = 0;
|
|
bool get_all = false;
|
|
int len;
|
|
size_t namespaced_token_len;
|
|
char *global_token, *namespaced_token;
|
|
struct list_head *list;
|
|
struct lxc_cgroup *cgroup;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (version == CGROUP2_SUPER_MAGIC) {
|
|
global_token = "lxc.cgroup2";
|
|
namespaced_token = "lxc.cgroup2.";
|
|
namespaced_token_len = STRLITERALLEN("lxc.cgroup2.");
|
|
list = &c->cgroup2;
|
|
} else if (version == CGROUP_SUPER_MAGIC) {
|
|
global_token = "lxc.cgroup";
|
|
namespaced_token = "lxc.cgroup.";
|
|
namespaced_token_len = STRLITERALLEN("lxc.cgroup.");
|
|
list = &c->cgroup;
|
|
} else {
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
if (strequal(key, global_token))
|
|
get_all = true;
|
|
else if (strnequal(key, namespaced_token, namespaced_token_len))
|
|
key += namespaced_token_len;
|
|
else
|
|
return ret_errno(EINVAL);
|
|
|
|
list_for_each_entry(cgroup, list, head) {
|
|
if (get_all) {
|
|
if (version != cgroup->version)
|
|
continue;
|
|
|
|
strprint(retv, inlen, "%s.%s = %s\n", global_token,
|
|
cgroup->subsystem, cgroup->value);
|
|
} else if (strequal(cgroup->subsystem, key)) {
|
|
strprint(retv, inlen, "%s\n", cgroup->value);
|
|
}
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_cgroup_controller(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return __get_config_cgroup_controller(key, retv, inlen, c,
|
|
CGROUP_SUPER_MAGIC);
|
|
}
|
|
|
|
static int get_config_cgroup2_controller(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return __get_config_cgroup_controller(key, retv, inlen, c,
|
|
CGROUP2_SUPER_MAGIC);
|
|
}
|
|
|
|
static int get_config_cgroup_dir(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
|
|
if (!strequal(key, "lxc.cgroup.dir"))
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "%s", lxc_conf->cgroup_meta.dir);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_cgroup_monitor_dir(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "%s", lxc_conf->cgroup_meta.monitor_dir);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_cgroup_monitor_pivot_dir(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "%s", lxc_conf->cgroup_meta.monitor_pivot_dir);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_cgroup_container_dir(const char *key, char *retv,
|
|
int inlen,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "%s", lxc_conf->cgroup_meta.container_dir);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_cgroup_container_inner_dir(const char *key, char *retv,
|
|
int inlen,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "%s", lxc_conf->cgroup_meta.namespace_dir);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static inline int get_config_cgroup_relative(const char *key, char *retv,
|
|
int inlen, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
return lxc_get_conf_int(lxc_conf, retv, inlen,
|
|
lxc_conf->cgroup_meta.relative);
|
|
}
|
|
|
|
static int get_config_idmaps(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
struct id_map *map;
|
|
int len, listlen, ret;
|
|
int fulllen = 0;
|
|
/* "u 1000 1000000 65536"
|
|
*
|
|
* let's render this as
|
|
*
|
|
* sizeof(char)
|
|
* +
|
|
* sizeof(" ")
|
|
* +
|
|
* sizeof(uint32_t)
|
|
* +
|
|
* sizeof(" ")
|
|
* +
|
|
* sizeof(uint32_t)
|
|
* +
|
|
* sizeof(" ")
|
|
* +
|
|
* sizeof(uint32_t)
|
|
* +
|
|
* \0
|
|
*/
|
|
#define __LXC_IDMAP_STR_BUF (3 * INTTYPE_TO_STRLEN(uint32_t) + 3 + 1 + 1)
|
|
char buf[__LXC_IDMAP_STR_BUF];
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
listlen = list_len(map, &c->id_map, head);
|
|
list_for_each_entry(map, &c->id_map, head) {
|
|
ret = strnprintf(buf, sizeof(buf), "%c %lu %lu %lu",
|
|
(map->idtype == ID_TYPE_UID) ? 'u' : 'g',
|
|
map->nsid, map->hostid, map->range);
|
|
if (ret < 0)
|
|
return ret_errno(EIO);
|
|
|
|
strprint(retv, inlen, "%s%s", buf, (listlen-- > 1) ? "\n" : "");
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_log_level(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
const char *v;
|
|
v = lxc_log_priority_to_string(c->loglevel);
|
|
return lxc_get_conf_str(retv, inlen, v);
|
|
}
|
|
|
|
static int get_config_log_file(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->logfile);
|
|
}
|
|
|
|
static int get_config_mount_fstab(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->fstab);
|
|
}
|
|
|
|
static int get_config_mount_auto(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len, fulllen = 0;
|
|
const char *sep = "";
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (!(c->auto_mounts & LXC_AUTO_ALL_MASK))
|
|
return 0;
|
|
|
|
switch (c->auto_mounts & LXC_AUTO_PROC_MASK) {
|
|
case LXC_AUTO_PROC_MIXED:
|
|
strprint(retv, inlen, "%sproc:mixed", sep);
|
|
sep = " ";
|
|
break;
|
|
case LXC_AUTO_PROC_RW:
|
|
strprint(retv, inlen, "%sproc:rw", sep);
|
|
sep = " ";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (c->auto_mounts & LXC_AUTO_SYS_MASK) {
|
|
case LXC_AUTO_SYS_RO:
|
|
strprint(retv, inlen, "%ssys:ro", sep);
|
|
sep = " ";
|
|
break;
|
|
case LXC_AUTO_SYS_RW:
|
|
strprint(retv, inlen, "%ssys:rw", sep);
|
|
sep = " ";
|
|
break;
|
|
case LXC_AUTO_SYS_MIXED:
|
|
strprint(retv, inlen, "%ssys:mixed", sep);
|
|
sep = " ";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (c->auto_mounts & LXC_AUTO_CGROUP_MASK) {
|
|
case LXC_AUTO_CGROUP_NOSPEC:
|
|
strprint(retv, inlen, "%scgroup", sep);
|
|
break;
|
|
case LXC_AUTO_CGROUP_MIXED:
|
|
strprint(retv, inlen, "%scgroup:mixed", sep);
|
|
break;
|
|
case LXC_AUTO_CGROUP_RO:
|
|
strprint(retv, inlen, "%scgroup:ro", sep);
|
|
break;
|
|
case LXC_AUTO_CGROUP_RW:
|
|
strprint(retv, inlen, "%scgroup:rw", sep);
|
|
break;
|
|
case LXC_AUTO_CGROUP_FULL_NOSPEC:
|
|
strprint(retv, inlen, "%scgroup-full", sep);
|
|
break;
|
|
case LXC_AUTO_CGROUP_FULL_MIXED:
|
|
strprint(retv, inlen, "%scgroup-full:mixed", sep);
|
|
break;
|
|
case LXC_AUTO_CGROUP_FULL_RO:
|
|
strprint(retv, inlen, "%scgroup-full:ro", sep);
|
|
break;
|
|
case LXC_AUTO_CGROUP_FULL_RW:
|
|
strprint(retv, inlen, "%scgroup-full:rw", sep);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_mount(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len, fulllen = 0;
|
|
struct string_entry *entry;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
list_for_each_entry(entry, &c->mount_entries, head) {
|
|
strprint(retv, inlen, "%s\n", entry->val);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_rootfs_path(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->rootfs.path);
|
|
}
|
|
|
|
static int get_config_rootfs_managed(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_bool(c, retv, inlen, c->rootfs.managed);
|
|
}
|
|
|
|
static int get_config_rootfs_mount(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->rootfs.mount);
|
|
}
|
|
|
|
static int get_config_rootfs_options(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->rootfs.mnt_opts.raw_options);
|
|
}
|
|
|
|
static int get_config_uts_name(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(
|
|
retv, inlen,
|
|
c->utsname ? c->utsname->nodename : NULL);
|
|
}
|
|
|
|
static int get_config_hooks(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
char *subkey;
|
|
int len, fulllen = 0, found = -1;
|
|
struct string_entry *entry;
|
|
int i;
|
|
|
|
subkey = strchr(key, '.');
|
|
if (!subkey)
|
|
return ret_errno(EINVAL);
|
|
|
|
subkey = strchr(subkey + 1, '.');
|
|
if (!subkey)
|
|
return ret_errno(EINVAL);
|
|
subkey++;
|
|
if (*subkey == '\0')
|
|
return ret_errno(EINVAL);
|
|
|
|
for (i = 0; i < NUM_LXC_HOOKS; i++) {
|
|
if (strequal(lxchook_names[i], subkey)) {
|
|
found = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (found == -1)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
list_for_each_entry(entry, &c->hooks[found], head) {
|
|
strprint(retv, inlen, "%s\n", entry->val);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_hooks_version(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->hooks_version);
|
|
}
|
|
|
|
static int get_config_net(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len, fulllen = 0;
|
|
struct lxc_netdev *netdev;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
list_for_each_entry(netdev, &c->netdevs, head) {
|
|
const char *t = lxc_net_type_to_str(netdev->type);
|
|
strprint(retv, inlen, "%s\n", t ? t : "(invalid)");
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_cap_drop(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len, fulllen = 0;
|
|
struct cap_entry *cap;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
list_for_each_entry(cap, &c->caps.list, head) {
|
|
strprint(retv, inlen, "%s\n", cap->cap_name);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_cap_keep(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len, fulllen = 0;
|
|
struct cap_entry *cap;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
list_for_each_entry(cap, &c->caps.list, head) {
|
|
strprint(retv, inlen, "%s\n", cap->cap_name);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_console_path(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->console.path);
|
|
}
|
|
|
|
static int get_config_console_logfile(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->console.log_path);
|
|
}
|
|
|
|
static int get_config_console_rotate(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->console.log_rotate);
|
|
}
|
|
|
|
|
|
static int get_config_console_buffer_size(const char *key, char *retv,
|
|
int inlen, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_get_conf_uint64(c, retv, inlen, c->console.buffer_size);
|
|
}
|
|
|
|
static int get_config_console_size(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_uint64(c, retv, inlen, c->console.log_size);
|
|
}
|
|
|
|
static int get_config_seccomp_allow_nesting(const char *key, char *retv,
|
|
int inlen, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP
|
|
return lxc_get_conf_int(c, retv, inlen, c->seccomp.allow_nesting);
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static int get_config_seccomp_notify_cookie(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP_NOTIFY
|
|
return lxc_get_conf_str(retv, inlen, c->seccomp.notifier.cookie);
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static int get_config_seccomp_notify_proxy(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP_NOTIFY
|
|
return lxc_get_conf_str(retv, inlen,
|
|
(c->seccomp.notifier.proxy_addr.sun_path[0]) == '/'
|
|
? &c->seccomp.notifier.proxy_addr.sun_path[0]
|
|
: &c->seccomp.notifier.proxy_addr.sun_path[1]);
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static int get_config_seccomp_profile(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP
|
|
return lxc_get_conf_str(retv, inlen, c->seccomp.seccomp);
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static int get_config_autodev(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->autodev);
|
|
}
|
|
|
|
static int get_config_autodev_tmpfs_size(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->autodevtmpfssize);
|
|
}
|
|
|
|
static int get_config_signal_halt(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->haltsignal);
|
|
}
|
|
|
|
static int get_config_signal_reboot(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->rebootsignal);
|
|
}
|
|
|
|
static int get_config_signal_stop(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->stopsignal);
|
|
}
|
|
|
|
static int get_config_start(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
if (strequal(key + 10, "auto"))
|
|
return lxc_get_conf_int(c, retv, inlen, c->start_auto);
|
|
else if (strequal(key + 10, "delay"))
|
|
return lxc_get_conf_int(c, retv, inlen, c->start_delay);
|
|
else if (strequal(key + 10, "order"))
|
|
return lxc_get_conf_int(c, retv, inlen, c->start_order);
|
|
|
|
return ret_errno(EINVAL);
|
|
}
|
|
|
|
static int get_config_log_syslog(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->syslog);
|
|
}
|
|
|
|
static int get_config_monitor(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->monitor_unshare);
|
|
}
|
|
|
|
static int get_config_monitor_signal_pdeath(const char *key, char *retv,
|
|
int inlen, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->monitor_signal_pdeath);
|
|
}
|
|
|
|
static int get_config_group(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len, fulllen = 0;
|
|
struct string_entry *entry;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
list_for_each_entry(entry, &c->groups, head) {
|
|
strprint(retv, inlen, "%s\n", entry->val);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_environment(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len, fulllen = 0;
|
|
struct environment_entry *env;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
list_for_each_entry(env, &c->environment, head) {
|
|
strprint(retv, inlen, "%s=%s\n", env->key, env->val);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_execute_cmd(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->execute_cmd);
|
|
}
|
|
|
|
static int get_config_init_cmd(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->init_cmd);
|
|
}
|
|
|
|
static int get_config_init_cwd(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_str(retv, inlen, c->init_cwd);
|
|
}
|
|
|
|
static int get_config_init_uid(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->init_uid);
|
|
}
|
|
|
|
static int get_config_init_gid(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->init_gid);
|
|
}
|
|
|
|
static int get_config_init_groups(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int fulllen = 0, len;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (c->init_groups.size == 0)
|
|
return 0;
|
|
|
|
for (int i = 0; i < c->init_groups.size; i++)
|
|
strprint(retv, inlen, "%s%d", (i > 0) ? "," : "",
|
|
c->init_groups.list[i]);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_ephemeral(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->ephemeral);
|
|
}
|
|
|
|
static int get_config_no_new_privs(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_get_conf_int(c, retv, inlen, c->no_new_privs);
|
|
}
|
|
|
|
/* If you ask for a specific value, i.e. lxc.prlimit.nofile, then just the value
|
|
* will be printed. If you ask for 'lxc.prlimit', then all limit entries will be
|
|
* printed, in 'lxc.prlimit.resource = value' format.
|
|
*/
|
|
static int get_config_prlimit(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int fulllen = 0, len;
|
|
bool get_all = false;
|
|
struct lxc_limit *lim;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (strequal(key, "lxc.prlimit"))
|
|
get_all = true;
|
|
else if (strnequal(key, "lxc.prlimit.", 12))
|
|
key += 12;
|
|
else
|
|
return ret_errno(EINVAL);
|
|
|
|
list_for_each_entry(lim, &c->limits, head) {
|
|
/* 2 colon separated 64 bit integers or the word 'unlimited' */
|
|
char buf[INTTYPE_TO_STRLEN(uint64_t) * 2 + 2];
|
|
int partlen;
|
|
|
|
if (lim->limit.rlim_cur == RLIM_INFINITY) {
|
|
memcpy(buf, "unlimited", STRLITERALLEN("unlimited") + 1);
|
|
partlen = STRLITERALLEN("unlimited");
|
|
} else {
|
|
partlen = sprintf(buf, "%" PRIu64,
|
|
(uint64_t)lim->limit.rlim_cur);
|
|
}
|
|
|
|
if (lim->limit.rlim_cur != lim->limit.rlim_max) {
|
|
if (lim->limit.rlim_max == RLIM_INFINITY)
|
|
memcpy(buf + partlen, ":unlimited",
|
|
STRLITERALLEN(":unlimited") + 1);
|
|
else
|
|
sprintf(buf + partlen, ":%" PRIu64,
|
|
(uint64_t)lim->limit.rlim_max);
|
|
}
|
|
|
|
if (get_all) {
|
|
strprint(retv, inlen, "lxc.prlimit.%s = %s\n",
|
|
lim->resource, buf);
|
|
} else if (strequal(lim->resource, key)) {
|
|
strprint(retv, inlen, "%s", buf);
|
|
}
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
/* If you ask for a specific value, i.e. lxc.sysctl.net.ipv4.ip_forward, then
|
|
* just the value will be printed. If you ask for 'lxc.sysctl', then all sysctl
|
|
* entries will be printed, in 'lxc.sysctl.key = value' format.
|
|
*/
|
|
static int get_config_sysctl(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int fulllen = 0;
|
|
bool get_all = false;
|
|
int len;
|
|
struct lxc_sysctl *sysctl;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (strequal(key, "lxc.sysctl"))
|
|
get_all = true;
|
|
else if (strnequal(key, "lxc.sysctl.", STRLITERALLEN("lxc.sysctl.")))
|
|
key += STRLITERALLEN("lxc.sysctl.");
|
|
else
|
|
return ret_errno(EINVAL);
|
|
|
|
list_for_each_entry(sysctl, &c->sysctls, head) {
|
|
if (get_all) {
|
|
strprint(retv, inlen, "lxc.sysctl.%s = %s\n", sysctl->key,
|
|
sysctl->value);
|
|
} else if (strequal(sysctl->key, key)) {
|
|
strprint(retv, inlen, "%s", sysctl->value);
|
|
}
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_proc(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int fulllen = 0;
|
|
bool get_all = false;
|
|
int len;
|
|
struct lxc_proc *proc;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (strequal(key, "lxc.proc"))
|
|
get_all = true;
|
|
else if (strnequal(key, "lxc.proc.", STRLITERALLEN("lxc.proc.")))
|
|
key += STRLITERALLEN("lxc.proc.");
|
|
else
|
|
return ret_errno(EINVAL);
|
|
|
|
list_for_each_entry(proc, &c->procs, head) {
|
|
if (get_all) {
|
|
strprint(retv, inlen, "lxc.proc.%s = %s\n",
|
|
proc->filename, proc->value);
|
|
} else if (strequal(proc->filename, key)) {
|
|
strprint(retv, inlen, "%s", proc->value);
|
|
}
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_namespace_clone(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int i, len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
for (i = 0; i < LXC_NS_MAX; i++) {
|
|
if (c->ns_clone & ns_info[i].clone_flag)
|
|
strprint(retv, inlen, "%s\n", ns_info[i].proc_name);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_namespace_keep(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int i, len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
for (i = 0; i < LXC_NS_MAX; i++) {
|
|
if (c->ns_keep & ns_info[i].clone_flag)
|
|
strprint(retv, inlen, "%s\n", ns_info[i].proc_name);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_time_offset_boot(const char *key, char *retv, int inlen, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (c->timens.s_boot) {
|
|
strprint(retv, inlen, "%" PRId64 " s\n", c->timens.s_boot);
|
|
} else {
|
|
strprint(retv, inlen, "%" PRId64 " ns\n", c->timens.ns_boot);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_time_offset_monotonic(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (c->timens.s_monotonic) {
|
|
strprint(retv, inlen, "%" PRId64 "s\n", c->timens.s_monotonic);
|
|
} else {
|
|
strprint(retv, inlen, "%" PRId64 "ns\n", c->timens.ns_monotonic);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_namespace_share(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len, ns_idx;
|
|
const char *namespace;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
namespace = key + STRLITERALLEN("lxc.namespace.share.");
|
|
if (is_empty_string(namespace))
|
|
return ret_errno(EINVAL);
|
|
|
|
ns_idx = lxc_namespace_2_ns_idx(namespace);
|
|
if (ns_idx < 0)
|
|
return ns_idx;
|
|
|
|
strprint(retv, inlen, "%s", c->ns_share[ns_idx]);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
/* Callbacks to clear config items. */
|
|
static inline int clr_config_personality(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->personality = -1;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_pty_max(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->pty_max = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_tty_max(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->ttys.tty = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_tty_dir(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->ttys.dir);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_apparmor_profile(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
free_disarm(c->lsm_aa_profile);
|
|
return 0;
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static inline int clr_config_apparmor_allow_incomplete(const char *key,
|
|
struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
c->lsm_aa_allow_incomplete = 0;
|
|
return 0;
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static inline int clr_config_apparmor_allow_nesting(const char *key,
|
|
struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
c->lsm_aa_allow_nesting = 0;
|
|
return 0;
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static inline int clr_config_apparmor_raw(const char *key,
|
|
struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
#if HAVE_APPARMOR
|
|
return lxc_clear_apparmor_raw(c);
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without AppArmor support");
|
|
#endif
|
|
}
|
|
|
|
static inline int clr_config_selinux_context(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#if HAVE_SELINUX
|
|
free_disarm(c->lsm_se_context);
|
|
return 0;
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without SELinux support");
|
|
#endif
|
|
}
|
|
|
|
static inline int clr_config_selinux_context_keyring(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#if HAVE_SELINUX
|
|
free_disarm(c->lsm_se_keyring_context);
|
|
return 0;
|
|
#else
|
|
return syserror_set(-EINVAL, "Built without SELinux support");
|
|
#endif
|
|
}
|
|
|
|
static inline int clr_config_keyring_session(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
c->keyring_disable_session = false;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_cgroup_controller(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_clear_cgroups(c, key, CGROUP_SUPER_MAGIC);
|
|
}
|
|
|
|
static inline int clr_config_cgroup2_controller(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return lxc_clear_cgroups(c, key, CGROUP2_SUPER_MAGIC);
|
|
}
|
|
|
|
static int clr_config_cgroup_dir(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
if (!strequal(key, "lxc.cgroup.dir"))
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_conf->cgroup_meta.dir)
|
|
free_disarm(lxc_conf->cgroup_meta.dir);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_cgroup_monitor_dir(const char *key,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
free_disarm(lxc_conf->cgroup_meta.monitor_dir);
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_cgroup_monitor_pivot_dir(const char *key,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
free_disarm(lxc_conf->cgroup_meta.monitor_pivot_dir);
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_cgroup_container_dir(const char *key,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
free_disarm(lxc_conf->cgroup_meta.container_dir);
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_cgroup_container_inner_dir(const char *key,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
free_disarm(lxc_conf->cgroup_meta.namespace_dir);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_cgroup_relative(const char *key,
|
|
struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
lxc_conf->cgroup_meta.relative = false;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_idmaps(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_idmaps(c);
|
|
}
|
|
|
|
static inline int clr_config_log_level(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->loglevel = LXC_LOG_LEVEL_NOTSET;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_log_file(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->logfile);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_mount(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_mount_entries(c);
|
|
}
|
|
|
|
static inline int clr_config_mount_auto(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_automounts(c);
|
|
}
|
|
|
|
static inline int clr_config_mount_fstab(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->fstab);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_rootfs_path(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->rootfs.path);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_rootfs_managed(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->rootfs.managed = true;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_rootfs_mount(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->rootfs.mount);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_rootfs_options(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
put_lxc_mount_options(&c->rootfs.mnt_opts);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_uts_name(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->utsname);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_hooks(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_hooks(c, key);
|
|
}
|
|
|
|
static inline int clr_config_hooks_version(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
/* default to legacy hooks version */
|
|
c->hooks_version = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_net(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
lxc_free_networks(c);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_cap_drop(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_config_caps(c);
|
|
}
|
|
|
|
static inline int clr_config_cap_keep(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_config_caps(c);
|
|
}
|
|
|
|
static inline int clr_config_console_path(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->console.path);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_console_logfile(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
free_disarm(c->console.log_path);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_console_rotate(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->console.log_rotate = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_console_buffer_size(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
c->console.buffer_size = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_console_size(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->console.log_size = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_seccomp_allow_nesting(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP
|
|
c->seccomp.allow_nesting = 0;
|
|
return 0;
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static inline int clr_config_seccomp_notify_cookie(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP_NOTIFY
|
|
free_disarm(c->seccomp.notifier.cookie);
|
|
return 0;
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static inline int clr_config_seccomp_notify_proxy(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
#ifdef HAVE_SECCOMP_NOTIFY
|
|
memset(&c->seccomp.notifier.proxy_addr, 0,
|
|
sizeof(c->seccomp.notifier.proxy_addr));
|
|
return 0;
|
|
#else
|
|
return ret_errno(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
static inline int clr_config_seccomp_profile(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
free_disarm(c->seccomp.seccomp);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_autodev(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->autodev = 1;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_autodev_tmpfs_size(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->autodevtmpfssize = 500000;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_signal_halt(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->haltsignal = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_signal_reboot(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->rebootsignal = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_signal_stop(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->stopsignal = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_start(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
if (strequal(key + 10, "auto"))
|
|
c->start_auto = 0;
|
|
else if (strequal(key + 10, "delay"))
|
|
c->start_delay = 0;
|
|
else if (strequal(key + 10, "order"))
|
|
c->start_order = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_log_syslog(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->syslog);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_monitor(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->monitor_unshare = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_monitor_signal_pdeath(const char *key,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
c->monitor_signal_pdeath = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_group(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_groups(c);
|
|
}
|
|
|
|
static inline int clr_config_environment(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_environment(c);
|
|
}
|
|
|
|
static inline int clr_config_execute_cmd(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->execute_cmd);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_init_cmd(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->init_cmd);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_init_cwd(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
free_disarm(c->init_cwd);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_init_uid(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->init_uid = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_init_gid(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->init_gid = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_init_groups(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->init_groups.size = 0;
|
|
free_disarm(c->init_groups.list);
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_ephemeral(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->ephemeral = 0;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_no_new_privs(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
c->no_new_privs = false;
|
|
return 0;
|
|
}
|
|
|
|
static inline int clr_config_prlimit(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_limits(c, key);
|
|
}
|
|
|
|
static inline int clr_config_sysctl(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_sysctls(c, key);
|
|
}
|
|
|
|
static inline int clr_config_proc(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return lxc_clear_procs(c, key);
|
|
}
|
|
|
|
static inline int clr_config_includefiles(const char *key, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_namespace_clone(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
lxc_conf->ns_clone = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_namespace_keep(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
lxc_conf->ns_keep = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_time_offset_boot(const char *key, struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
lxc_conf->timens.s_boot = 0;
|
|
lxc_conf->timens.ns_boot = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_time_offset_monotonic(const char *key, struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
lxc_conf->timens.s_monotonic = 0;
|
|
lxc_conf->timens.ns_monotonic = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_namespace_share(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
int ns_idx;
|
|
const char *namespace;
|
|
|
|
namespace = key + STRLITERALLEN("lxc.namespace.share.");
|
|
if (is_empty_string(namespace))
|
|
return ret_errno(EINVAL);
|
|
|
|
ns_idx = lxc_namespace_2_ns_idx(namespace);
|
|
if (ns_idx < 0)
|
|
return ns_idx;
|
|
|
|
free(lxc_conf->ns_share[ns_idx]);
|
|
lxc_conf->ns_share[ns_idx] = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_config_includefiles(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
return ret_errno(ENOSYS);
|
|
}
|
|
|
|
struct config_net_info {
|
|
char buf[NETWORK_SUBKEY_SIZE_MAX];
|
|
const char *subkey;
|
|
const struct lxc_config_net_t *ops;
|
|
struct lxc_netdev *netdev;
|
|
};
|
|
|
|
static int get_network_config_ops(const char *key, struct lxc_conf *lxc_conf,
|
|
struct config_net_info *info, bool allocate)
|
|
{
|
|
int ret;
|
|
int64_t tmpidx;
|
|
unsigned int idx;
|
|
const char *idx_start;
|
|
|
|
if (is_empty_string(key))
|
|
return ret_errno(EINVAL);
|
|
|
|
/* check that this is a sensible network key */
|
|
if (!strnequal("lxc.net.", key, STRLITERALLEN("lxc.net.")))
|
|
return syserror_set(-EINVAL, "Invalid network configuration key \"%s\"", key);
|
|
|
|
/* lxc.net.<n> */
|
|
/* beginning of index string */
|
|
idx_start = key + STRLITERALLEN("lxc.net.");
|
|
if (!isdigit(*idx_start))
|
|
return syserror_set(-EINVAL, "Failed to detect digit in string \"%s\"", key + 8);
|
|
|
|
ret = lxc_safe_int64_residual(idx_start, &tmpidx, 10, info->buf, sizeof(info->buf));
|
|
if (ret)
|
|
return syserror("Failed to parse network index");
|
|
|
|
if (tmpidx < 0 || tmpidx >= INT_MAX)
|
|
return syserror_set(-ERANGE, "Number of configured networks would overflow the counter");
|
|
idx = (unsigned int)tmpidx;
|
|
|
|
info->netdev = lxc_get_netdev_by_idx(lxc_conf, idx, allocate);
|
|
if (!info->netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
/* Make sure subkey points to the empty string. */
|
|
info->subkey = info->buf;
|
|
if (is_empty_string(info->subkey))
|
|
return ret_errno(ENOENT);
|
|
|
|
if (info->subkey[0] != '.')
|
|
return syserror_set(-EINVAL, "Invalid subkey");
|
|
info->subkey++;
|
|
|
|
/* lxc.net.<idx>.<subkey> */
|
|
info->ops = lxc_get_config_net(info->subkey);
|
|
if (info->ops == &unsupported_config_net_key)
|
|
return syserror_set(-ENOENT, "Unknown network configuration key \"%s\"", key);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Config entry is something like "lxc.net.0.ipv4" the key 'lxc.net.' was
|
|
* found. So we make sure next comes an integer, find the right callback (by
|
|
* rewriting the key), and call it.
|
|
*/
|
|
static int set_config_jump_table_net(const char *key, const char *value,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct config_net_info info = {};
|
|
int ret;
|
|
const char *idxstring;
|
|
|
|
idxstring = key + STRLITERALLEN("lxc.net.");
|
|
if (!isdigit(*idxstring))
|
|
return ret_errno(EINVAL);
|
|
|
|
if (lxc_config_value_empty(value))
|
|
return clr_config_jump_table_net(key, lxc_conf, data);
|
|
|
|
ret = get_network_config_ops(key, lxc_conf, &info, true);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return info.ops->set(info.subkey, value, lxc_conf, info.netdev);
|
|
}
|
|
|
|
static int clr_config_jump_table_net(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct config_net_info info = {};
|
|
int ret;
|
|
const char *idxstring;
|
|
|
|
idxstring = key + 8;
|
|
if (!isdigit(*idxstring))
|
|
return ret_errno(EINVAL);
|
|
|
|
/* The left conjunct is pretty self-explanatory. The right conjunct
|
|
* checks whether the two pointers are equal. If they are we know that
|
|
* this is not a key that is namespaced any further and so we are
|
|
* supposed to clear the whole network.
|
|
*/
|
|
if (isdigit(*idxstring) && (strrchr(key, '.') == (idxstring - 1))) {
|
|
unsigned int rmnetdevidx;
|
|
|
|
ret = lxc_safe_uint(idxstring, &rmnetdevidx);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Remove network from network list. */
|
|
lxc_remove_nic_by_idx(lxc_conf, rmnetdevidx);
|
|
return 0;
|
|
}
|
|
|
|
ret = get_network_config_ops(key, lxc_conf, &info, false);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return info.ops->clr(info.subkey, lxc_conf, info.netdev);
|
|
}
|
|
|
|
static int clr_config_net_type(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
lxc_clear_netdev(netdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_name(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
netdev->name[0] = '\0';
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_flags(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
netdev->flags = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_link(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
netdev->link[0] = '\0';
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_l2proxy(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
netdev->l2proxy = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_macvlan_mode(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_MACVLAN)
|
|
return 0;
|
|
|
|
netdev->priv.macvlan_attr.mode = -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_ipvlan_mode(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_IPVLAN)
|
|
return 0;
|
|
|
|
netdev->priv.ipvlan_attr.mode = -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_ipvlan_isolation(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_IPVLAN)
|
|
return 0;
|
|
|
|
netdev->priv.ipvlan_attr.isolation = -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_veth_mode(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return 0;
|
|
|
|
netdev->priv.veth_attr.mode = -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_veth_pair(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return 0;
|
|
|
|
netdev->priv.veth_attr.pair[0] = '\0';
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_veth_vlan_id(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return 0;
|
|
|
|
netdev->priv.veth_attr.vlan_id = 0;
|
|
netdev->priv.veth_attr.vlan_id_set = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_veth_vlan_tagged_id(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
struct lxc_list *cur, *next;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return 0;
|
|
|
|
lxc_list_for_each_safe(cur, &netdev->priv.veth_attr.vlan_tagged_ids, next) {
|
|
lxc_list_del(cur);
|
|
free(cur);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int clr_config_net_script_up(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
free_disarm(netdev->upscript);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_script_down(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
free_disarm(netdev->downscript);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_hwaddr(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
free_disarm(netdev->hwaddr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_mtu(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
free_disarm(netdev->mtu);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_vlan_id(const char *key, struct lxc_conf *lxc_conf,
|
|
void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VLAN)
|
|
return 0;
|
|
|
|
netdev->priv.vlan_attr.vid = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_ipv4_gateway(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
free_disarm(netdev->ipv4_gateway);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_ipv4_address(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
struct lxc_inetdev *inetdev, *ninetdev;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
list_for_each_entry_safe(inetdev, ninetdev, &netdev->ipv4_addresses, head) {
|
|
list_del(&inetdev->head);
|
|
free(inetdev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_veth_ipv4_route(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
struct lxc_inetdev *inetdev, *ninetdev;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return 0;
|
|
|
|
list_for_each_entry_safe(inetdev, ninetdev, &netdev->priv.veth_attr.ipv4_routes, head) {
|
|
list_del(&inetdev->head);
|
|
free(inetdev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_ipv6_gateway(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
free_disarm(netdev->ipv6_gateway);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_ipv6_address(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
struct lxc_inet6dev *inet6dev, *ninet6dev;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
list_for_each_entry_safe(inet6dev, ninet6dev, &netdev->ipv6_addresses, head) {
|
|
list_del(&inet6dev->head);
|
|
free(inet6dev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clr_config_net_veth_ipv6_route(const char *key,
|
|
struct lxc_conf *lxc_conf, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
struct lxc_inet6dev *inet6dev, *ninet6dev;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return 0;
|
|
|
|
list_for_each_entry_safe(inet6dev, ninet6dev, &netdev->priv.veth_attr.ipv6_routes, head) {
|
|
list_del(&inet6dev->head);
|
|
free(inet6dev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_config_jump_table_net(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
struct config_net_info info = {};
|
|
int ret;
|
|
const char *idxstring;
|
|
|
|
idxstring = key + STRLITERALLEN("lxc.net.");
|
|
if (!isdigit(*idxstring))
|
|
return ret_errno(EINVAL);
|
|
|
|
ret = get_network_config_ops(key, c, &info, false);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return info.ops->get(info.subkey, retv, inlen, c, info.netdev);
|
|
}
|
|
|
|
static int get_config_net_type(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "%s", lxc_net_type_to_str(netdev->type));
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_flags(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (netdev->flags & IFF_UP)
|
|
strprint(retv, inlen, "up");
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_link(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (netdev->link[0] != '\0')
|
|
strprint(retv, inlen, "%s", netdev->link);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_l2proxy(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
return lxc_get_conf_bool(c, retv, inlen, netdev->l2proxy);
|
|
}
|
|
|
|
static int get_config_net_name(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (netdev->name[0] != '\0')
|
|
strprint(retv, inlen, "%s", netdev->name);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_macvlan_mode(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
const char *mode;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_MACVLAN)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
switch (netdev->priv.macvlan_attr.mode) {
|
|
case MACVLAN_MODE_PRIVATE:
|
|
mode = "private";
|
|
break;
|
|
case MACVLAN_MODE_VEPA:
|
|
mode = "vepa";
|
|
break;
|
|
case MACVLAN_MODE_BRIDGE:
|
|
mode = "bridge";
|
|
break;
|
|
case MACVLAN_MODE_PASSTHRU:
|
|
mode = "passthru";
|
|
break;
|
|
default:
|
|
mode = "(invalid)";
|
|
break;
|
|
}
|
|
|
|
strprint(retv, inlen, "%s", mode);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_ipvlan_mode(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
int len;
|
|
const char *mode;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_IPVLAN)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
switch (netdev->priv.ipvlan_attr.mode) {
|
|
case IPVLAN_MODE_L3:
|
|
mode = "l3";
|
|
break;
|
|
case IPVLAN_MODE_L3S:
|
|
mode = "l3s";
|
|
break;
|
|
case IPVLAN_MODE_L2:
|
|
mode = "l2";
|
|
break;
|
|
default:
|
|
mode = "(invalid)";
|
|
break;
|
|
}
|
|
|
|
strprint(retv, inlen, "%s", mode);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_ipvlan_isolation(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
int len;
|
|
const char *mode;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_IPVLAN)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
switch (netdev->priv.ipvlan_attr.isolation) {
|
|
case IPVLAN_ISOLATION_BRIDGE:
|
|
mode = "bridge";
|
|
break;
|
|
case IPVLAN_ISOLATION_PRIVATE:
|
|
mode = "private";
|
|
break;
|
|
case IPVLAN_ISOLATION_VEPA:
|
|
mode = "vepa";
|
|
break;
|
|
default:
|
|
mode = "(invalid)";
|
|
break;
|
|
}
|
|
|
|
strprint(retv, inlen, "%s", mode);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_veth_mode(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
int len;
|
|
const char *mode;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
switch (netdev->priv.veth_attr.mode) {
|
|
case VETH_MODE_BRIDGE:
|
|
mode = "bridge";
|
|
break;
|
|
case VETH_MODE_ROUTER:
|
|
mode = "router";
|
|
break;
|
|
default:
|
|
mode = "(invalid)";
|
|
break;
|
|
}
|
|
|
|
strprint(retv, inlen, "%s", mode);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_veth_pair(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "%s",
|
|
netdev->priv.veth_attr.pair[0] != '\0'
|
|
? netdev->priv.veth_attr.pair
|
|
: netdev->priv.veth_attr.veth1);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_veth_vlan_id(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "%d", netdev->priv.veth_attr.vlan_id);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_veth_vlan_tagged_id(const char *key, char *retv,
|
|
int inlen, struct lxc_conf *c,
|
|
void *data)
|
|
{
|
|
int len;
|
|
size_t listlen;
|
|
struct lxc_list *it;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
listlen = lxc_list_len(&netdev->priv.veth_attr.vlan_tagged_ids);
|
|
|
|
lxc_list_for_each(it, &netdev->priv.veth_attr.vlan_tagged_ids) {
|
|
unsigned short i = PTR_TO_USHORT(it->elem);
|
|
strprint(retv, inlen, "%u%s", i, (listlen-- > 1) ? "\n" : "");
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_script_up(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (netdev->upscript)
|
|
strprint(retv, inlen, "%s", netdev->upscript);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_script_down(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (netdev->downscript)
|
|
strprint(retv, inlen, "%s", netdev->downscript);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_hwaddr(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (netdev->hwaddr)
|
|
strprint(retv, inlen, "%s", netdev->hwaddr);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_mtu(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (netdev->mtu)
|
|
strprint(retv, inlen, "%s", netdev->mtu);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_vlan_id(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VLAN)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "%d", netdev->priv.vlan_attr.vid);
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_ipv4_gateway(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
char buf[INET_ADDRSTRLEN];
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (netdev->ipv4_gateway_auto) {
|
|
strprint(retv, inlen, "auto");
|
|
} else if (netdev->ipv4_gateway_dev) {
|
|
strprint(retv, inlen, "dev");
|
|
} else if (netdev->ipv4_gateway) {
|
|
if (!inet_ntop(AF_INET, netdev->ipv4_gateway, buf, sizeof(buf)))
|
|
return -errno;
|
|
strprint(retv, inlen, "%s", buf);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_ipv4_address(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
int len;
|
|
size_t listlen;
|
|
char buf[INET_ADDRSTRLEN];
|
|
struct lxc_inetdev *inetdev;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
listlen = list_len(inetdev, &netdev->ipv4_addresses, head);
|
|
|
|
list_for_each_entry(inetdev, &netdev->ipv4_addresses, head) {
|
|
if (!inet_ntop(AF_INET, &inetdev->addr, buf, sizeof(buf)))
|
|
return -errno;
|
|
strprint(retv, inlen, "%s/%u%s", buf, inetdev->prefix,
|
|
(listlen-- > 1) ? "\n" : "");
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_veth_ipv4_route(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
size_t listlen;
|
|
char buf[INET_ADDRSTRLEN];
|
|
struct lxc_inetdev *inetdev;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
listlen = list_len(inetdev, &netdev->priv.veth_attr.ipv4_routes, head);
|
|
list_for_each_entry(inetdev, &netdev->priv.veth_attr.ipv4_routes, head) {
|
|
if (!inet_ntop(AF_INET, &inetdev->addr, buf, sizeof(buf)))
|
|
return -errno;
|
|
strprint(retv, inlen, "%s/%u%s", buf, inetdev->prefix,
|
|
(listlen-- > 1) ? "\n" : "");
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_ipv6_gateway(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
char buf[INET6_ADDRSTRLEN];
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (netdev->ipv6_gateway_auto) {
|
|
strprint(retv, inlen, "auto");
|
|
} else if (netdev->ipv6_gateway_dev) {
|
|
strprint(retv, inlen, "dev");
|
|
} else if (netdev->ipv6_gateway) {
|
|
if (!inet_ntop(AF_INET6, netdev->ipv6_gateway, buf, sizeof(buf)))
|
|
return -errno;
|
|
strprint(retv, inlen, "%s", buf);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_ipv6_address(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
size_t listlen;
|
|
char buf[INET6_ADDRSTRLEN];
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
struct lxc_inet6dev *inet6dev;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
listlen = list_len(inet6dev, &netdev->ipv6_addresses, head);
|
|
list_for_each_entry(inet6dev, &netdev->ipv6_addresses, head) {
|
|
if (!inet_ntop(AF_INET6, &inet6dev->addr, buf, sizeof(buf)))
|
|
return -errno;
|
|
strprint(retv, inlen, "%s/%u%s", buf, inet6dev->prefix,
|
|
(listlen-- > 1) ? "\n" : "");
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
static int get_config_net_veth_ipv6_route(const char *key, char *retv, int inlen,
|
|
struct lxc_conf *c, void *data)
|
|
{
|
|
int len;
|
|
size_t listlen;
|
|
char buf[INET6_ADDRSTRLEN];
|
|
struct lxc_inet6dev *inet6dev;
|
|
int fulllen = 0;
|
|
struct lxc_netdev *netdev = data;
|
|
|
|
if (!netdev)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (netdev->type != LXC_NET_VETH)
|
|
return ret_errno(EINVAL);
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
listlen = list_len(inet6dev, &netdev->priv.veth_attr.ipv6_routes, head);
|
|
list_for_each_entry(inet6dev, &netdev->priv.veth_attr.ipv6_routes, head) {
|
|
if (!inet_ntop(AF_INET6, &inet6dev->addr, buf, sizeof(buf)))
|
|
return -errno;
|
|
strprint(retv, inlen, "%s/%u%s", buf, inet6dev->prefix,
|
|
(listlen-- > 1) ? "\n" : "");
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
int lxc_list_config_items(char *retv, int inlen)
|
|
{
|
|
size_t i;
|
|
int len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(config_jump_table); i++) {
|
|
char *s = config_jump_table[i].name;
|
|
|
|
if (s[strlen(s) - 1] == '.')
|
|
continue;
|
|
|
|
strprint(retv, inlen, "%s\n", s);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
int lxc_list_subkeys(struct lxc_conf *conf, const char *key, char *retv,
|
|
int inlen)
|
|
{
|
|
int len;
|
|
int fulllen = 0;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
if (strequal(key, "lxc.apparmor")) {
|
|
strprint(retv, inlen, "allow_incomplete\n");
|
|
strprint(retv, inlen, "allow_nesting\n");
|
|
strprint(retv, inlen, "profile\n");
|
|
strprint(retv, inlen, "raw\n");
|
|
} else if (strequal(key, "lxc.cgroup")) {
|
|
strprint(retv, inlen, "dir\n");
|
|
} else if (strequal(key, "lxc.selinux")) {
|
|
strprint(retv, inlen, "context\n");
|
|
strprint(retv, inlen, "context.keyring\n");
|
|
} else if (strequal(key, "lxc.mount")) {
|
|
strprint(retv, inlen, "auto\n");
|
|
strprint(retv, inlen, "entry\n");
|
|
strprint(retv, inlen, "fstab\n");
|
|
} else if (strequal(key, "lxc.rootfs")) {
|
|
strprint(retv, inlen, "mount\n");
|
|
strprint(retv, inlen, "options\n");
|
|
strprint(retv, inlen, "path\n");
|
|
} else if (strequal(key, "lxc.uts")) {
|
|
strprint(retv, inlen, "name\n");
|
|
} else if (strequal(key, "lxc.hook")) {
|
|
strprint(retv, inlen, "autodev\n");
|
|
strprint(retv, inlen, "autodevtmpfssize\n");
|
|
strprint(retv, inlen, "clone\n");
|
|
strprint(retv, inlen, "destroy\n");
|
|
strprint(retv, inlen, "mount\n");
|
|
strprint(retv, inlen, "post-stop\n");
|
|
strprint(retv, inlen, "pre-mount\n");
|
|
strprint(retv, inlen, "pre-start\n");
|
|
strprint(retv, inlen, "start-host\n");
|
|
strprint(retv, inlen, "start\n");
|
|
strprint(retv, inlen, "stop\n");
|
|
} else if (strequal(key, "lxc.cap")) {
|
|
strprint(retv, inlen, "drop\n");
|
|
strprint(retv, inlen, "keep\n");
|
|
} else if (strequal(key, "lxc.console")) {
|
|
strprint(retv, inlen, "logfile\n");
|
|
strprint(retv, inlen, "path\n");
|
|
} else if (strequal(key, "lxc.seccomp")) {
|
|
strprint(retv, inlen, "profile\n");
|
|
} else if (strequal(key, "lxc.signal")) {
|
|
strprint(retv, inlen, "halt\n");
|
|
strprint(retv, inlen, "reboot\n");
|
|
strprint(retv, inlen, "stop\n");
|
|
} else if (strequal(key, "lxc.start")) {
|
|
strprint(retv, inlen, "auto\n");
|
|
strprint(retv, inlen, "delay\n");
|
|
strprint(retv, inlen, "order\n");
|
|
} else if (strequal(key, "lxc.monitor")) {
|
|
strprint(retv, inlen, "unshare\n");
|
|
} else if (strequal(key, "lxc.keyring")) {
|
|
strprint(retv, inlen, "session\n");
|
|
} else {
|
|
fulllen = ret_errno(EINVAL);
|
|
}
|
|
|
|
return fulllen;
|
|
}
|
|
|
|
int lxc_list_net(struct lxc_conf *c, const char *key, char *retv, int inlen)
|
|
{
|
|
struct config_net_info info = {};
|
|
struct lxc_netdev *netdev;
|
|
int len, ret;
|
|
const char *idxstring;
|
|
int fulllen = 0;
|
|
|
|
idxstring = key + STRLITERALLEN("lxc.net.");
|
|
if (!isdigit(*idxstring))
|
|
return ret_errno(EINVAL);
|
|
|
|
ret = get_network_config_ops(key, c, &info, false);
|
|
if (ret) {
|
|
if (ret != -ENOENT)
|
|
return ret_errno(EINVAL);
|
|
}
|
|
netdev = info.netdev;
|
|
|
|
if (!retv)
|
|
inlen = 0;
|
|
else
|
|
memset(retv, 0, inlen);
|
|
|
|
strprint(retv, inlen, "type\n");
|
|
strprint(retv, inlen, "script.up\n");
|
|
strprint(retv, inlen, "script.down\n");
|
|
|
|
if (netdev->type != LXC_NET_EMPTY) {
|
|
strprint(retv, inlen, "flags\n");
|
|
strprint(retv, inlen, "link\n");
|
|
strprint(retv, inlen, "name\n");
|
|
strprint(retv, inlen, "hwaddr\n");
|
|
strprint(retv, inlen, "mtu\n");
|
|
strprint(retv, inlen, "ipv6.address\n");
|
|
strprint(retv, inlen, "ipv6.gateway\n");
|
|
strprint(retv, inlen, "ipv4.address\n");
|
|
strprint(retv, inlen, "ipv4.gateway\n");
|
|
}
|
|
|
|
switch (netdev->type) {
|
|
case LXC_NET_VETH:
|
|
strprint(retv, inlen, "veth.pair\n");
|
|
strprint(retv, inlen, "veth.ipv4.route\n");
|
|
strprint(retv, inlen, "veth.ipv6.route\n");
|
|
strprint(retv, inlen, "veth.vlan.id\n");
|
|
break;
|
|
case LXC_NET_MACVLAN:
|
|
strprint(retv, inlen, "macvlan.mode\n");
|
|
break;
|
|
case LXC_NET_IPVLAN:
|
|
strprint(retv, inlen, "ipvlan.mode\n");
|
|
strprint(retv, inlen, "ipvlan.isolation\n");
|
|
break;
|
|
case LXC_NET_VLAN:
|
|
strprint(retv, inlen, "vlan.id\n");
|
|
break;
|
|
case LXC_NET_PHYS:
|
|
break;
|
|
}
|
|
|
|
return fulllen;
|
|
}
|