Skip to content

L
lxc
Unverified Commit 589e8224 by Christian Brauner
Options

confile: don't jump into the global table twice

instead move networking keys into a subtable. This avoids even just the remote danger of recursion and also speeds up config parsing. Signed-off-by: 's avatarChristian Brauner <christian.brauner@ubuntu.com>
parent 2f593756
Showing with 168 additions and 176 deletions
src/lxc/confile.c
......@@ -160,135 +160,151 @@ lxc_config_define(proc);
* has to be placed above lxc.ab.
*/
static struct lxc_config_t config_jump_table[] = {
{ "lxc.arch", true, set_config_personality, get_config_personality, clr_config_personality, },
{ "lxc.apparmor.profile", true, set_config_apparmor_profile, get_config_apparmor_profile, clr_config_apparmor_profile, },
{ "lxc.apparmor.allow_incomplete", true, set_config_apparmor_allow_incomplete, get_config_apparmor_allow_incomplete, clr_config_apparmor_allow_incomplete, },
{ "lxc.apparmor.allow_nesting", true, set_config_apparmor_allow_nesting, get_config_apparmor_allow_nesting, clr_config_apparmor_allow_nesting, },
{ "lxc.apparmor.raw", true, set_config_apparmor_raw, get_config_apparmor_raw, clr_config_apparmor_raw, },
{ "lxc.autodev.tmpfs.size", true, set_config_autodev_tmpfs_size, get_config_autodev_tmpfs_size, clr_config_autodev_tmpfs_size, },
{ "lxc.autodev", true, set_config_autodev, get_config_autodev, clr_config_autodev, },
{ "lxc.cap.drop", true, set_config_cap_drop, get_config_cap_drop, clr_config_cap_drop, },
{ "lxc.cap.keep", true, set_config_cap_keep, get_config_cap_keep, clr_config_cap_keep, },
{ "lxc.cgroup2", false, set_config_cgroup2_controller, get_config_cgroup2_controller, clr_config_cgroup2_controller, },
{ "lxc.cgroup.dir", true, set_config_cgroup_dir, get_config_cgroup_dir, clr_config_cgroup_dir, },
{ "lxc.cgroup.relative", true, set_config_cgroup_relative, get_config_cgroup_relative, clr_config_cgroup_relative, },
{ "lxc.cgroup", false, set_config_cgroup_controller, get_config_cgroup_controller, clr_config_cgroup_controller, },
{ "lxc.console.buffer.size", true, set_config_console_buffer_size, get_config_console_buffer_size, clr_config_console_buffer_size, },
{ "lxc.console.logfile", true, set_config_console_logfile, get_config_console_logfile, clr_config_console_logfile, },
{ "lxc.console.path", true, set_config_console_path, get_config_console_path, clr_config_console_path, },
{ "lxc.console.rotate", true, set_config_console_rotate, get_config_console_rotate, clr_config_console_rotate, },
{ "lxc.console.size", true, set_config_console_size, get_config_console_size, clr_config_console_size, },
{ "lxc.environment", true, set_config_environment, get_config_environment, clr_config_environment, },
{ "lxc.ephemeral", true, set_config_ephemeral, get_config_ephemeral, clr_config_ephemeral, },
{ "lxc.execute.cmd", true, set_config_execute_cmd, get_config_execute_cmd, clr_config_execute_cmd, },
{ "lxc.group", true, set_config_group, get_config_group, clr_config_group, },
{ "lxc.hook.autodev", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.clone", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.destroy", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.mount", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.post-stop", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.pre-mount", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.pre-start", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.start", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.start-host", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.stop", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.version", true, set_config_hooks_version, get_config_hooks_version, clr_config_hooks_version, },
{ "lxc.hook", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.idmap", true, set_config_idmaps, get_config_idmaps, clr_config_idmaps, },
{ "lxc.include", true, set_config_includefiles, get_config_includefiles, clr_config_includefiles, },
{ "lxc.init.cmd", true, set_config_init_cmd, get_config_init_cmd, clr_config_init_cmd, },
{ "lxc.init.gid", true, set_config_init_gid, get_config_init_gid, clr_config_init_gid, },
{ "lxc.init.uid", true, set_config_init_uid, get_config_init_uid, clr_config_init_uid, },
{ "lxc.init.cwd", true, set_config_init_cwd, get_config_init_cwd, clr_config_init_cwd, },
{ "lxc.keyring.session", true, set_config_keyring_session, get_config_keyring_session, clr_config_keyring_session },
{ "lxc.log.file", true, set_config_log_file, get_config_log_file, clr_config_log_file, },
{ "lxc.log.level", true, set_config_log_level, get_config_log_level, clr_config_log_level, },
{ "lxc.log.syslog", true, set_config_log_syslog, get_config_log_syslog, clr_config_log_syslog, },
{ "lxc.monitor.unshare", true, set_config_monitor, get_config_monitor, clr_config_monitor, },
{ "lxc.monitor.signal.pdeath", true, set_config_monitor_signal_pdeath, get_config_monitor_signal_pdeath, clr_config_monitor_signal_pdeath, },
{ "lxc.mount.auto", true, set_config_mount_auto, get_config_mount_auto, clr_config_mount_auto, },
{ "lxc.mount.entry", true, set_config_mount, get_config_mount, clr_config_mount, },
{ "lxc.mount.fstab", true, set_config_mount_fstab, get_config_mount_fstab, clr_config_mount_fstab, },
{ "lxc.namespace.clone", true, set_config_namespace_clone, get_config_namespace_clone, clr_config_namespace_clone, },
{ "lxc.namespace.keep", true, set_config_namespace_keep, get_config_namespace_keep, clr_config_namespace_keep, },
{ "lxc.namespace.share", true, set_config_namespace_share, get_config_namespace_share, clr_config_namespace_share, },
{ "lxc.net.flags", true, set_config_net_flags, get_config_net_flags, clr_config_net_flags, },
{ "lxc.net.hwaddr", true, set_config_net_hwaddr, get_config_net_hwaddr, clr_config_net_hwaddr, },
{ "lxc.net.ipv4.address", true, set_config_net_ipv4_address, get_config_net_ipv4_address, clr_config_net_ipv4_address, },
{ "lxc.net.ipv4.gateway", true, set_config_net_ipv4_gateway, get_config_net_ipv4_gateway, clr_config_net_ipv4_gateway, },
{ "lxc.net.ipv6.address", true, set_config_net_ipv6_address, get_config_net_ipv6_address, clr_config_net_ipv6_address, },
{ "lxc.net.ipv6.gateway", true, set_config_net_ipv6_gateway, get_config_net_ipv6_gateway, clr_config_net_ipv6_gateway, },
{ "lxc.net.link", true, set_config_net_link, get_config_net_link, clr_config_net_link, },
{ "lxc.net.l2proxy", true, set_config_net_l2proxy, get_config_net_l2proxy, clr_config_net_l2proxy, },
{ "lxc.net.macvlan.mode", true, set_config_net_macvlan_mode, get_config_net_macvlan_mode, clr_config_net_macvlan_mode, },
{ "lxc.net.ipvlan.mode", true, set_config_net_ipvlan_mode, get_config_net_ipvlan_mode, clr_config_net_ipvlan_mode, },
{ "lxc.net.ipvlan.isolation", true, set_config_net_ipvlan_isolation, get_config_net_ipvlan_isolation, clr_config_net_ipvlan_isolation, },
{ "lxc.net.mtu", true, set_config_net_mtu, get_config_net_mtu, clr_config_net_mtu, },
{ "lxc.net.name", true, set_config_net_name, get_config_net_name, clr_config_net_name, },
{ "lxc.net.script.down", true, set_config_net_script_down, get_config_net_script_down, clr_config_net_script_down, },
{ "lxc.net.script.up", true, set_config_net_script_up, get_config_net_script_up, clr_config_net_script_up, },
{ "lxc.net.type", true, set_config_net_type, get_config_net_type, clr_config_net_type, },
{ "lxc.net.vlan.id", true, set_config_net_vlan_id, get_config_net_vlan_id, clr_config_net_vlan_id, },
{ "lxc.net.veth.mode", true, set_config_net_veth_mode, get_config_net_veth_mode, clr_config_net_veth_mode, },
{ "lxc.net.veth.pair", true, set_config_net_veth_pair, get_config_net_veth_pair, clr_config_net_veth_pair, },
{ "lxc.net.veth.ipv4.route", true, set_config_net_veth_ipv4_route, get_config_net_veth_ipv4_route, clr_config_net_veth_ipv4_route, },
{ "lxc.net.veth.ipv6.route", true, set_config_net_veth_ipv6_route, get_config_net_veth_ipv6_route, clr_config_net_veth_ipv6_route, },
{ "lxc.net.", false, set_config_net_nic, get_config_net_nic, clr_config_net_nic, },
{ "lxc.net", true, set_config_net, get_config_net, clr_config_net, },
{ "lxc.no_new_privs", true, set_config_no_new_privs, get_config_no_new_privs, clr_config_no_new_privs, },
{ "lxc.prlimit", false, set_config_prlimit, get_config_prlimit, clr_config_prlimit, },
{ "lxc.pty.max", true, set_config_pty_max, get_config_pty_max, clr_config_pty_max, },
{ "lxc.rootfs.managed", true, set_config_rootfs_managed, get_config_rootfs_managed, clr_config_rootfs_managed, },
{ "lxc.rootfs.mount", true, set_config_rootfs_mount, get_config_rootfs_mount, clr_config_rootfs_mount, },
{ "lxc.rootfs.options", true, set_config_rootfs_options, get_config_rootfs_options, clr_config_rootfs_options, },
{ "lxc.rootfs.path", true, set_config_rootfs_path, get_config_rootfs_path, clr_config_rootfs_path, },
{ "lxc.seccomp.allow_nesting", true, set_config_seccomp_allow_nesting, get_config_seccomp_allow_nesting, clr_config_seccomp_allow_nesting, },
{ "lxc.seccomp.notify.cookie", true, set_config_seccomp_notify_cookie, get_config_seccomp_notify_cookie, clr_config_seccomp_notify_cookie, },
{ "lxc.seccomp.notify.proxy", true, set_config_seccomp_notify_proxy, get_config_seccomp_notify_proxy, clr_config_seccomp_notify_proxy, },
{ "lxc.seccomp.profile", true, set_config_seccomp_profile, get_config_seccomp_profile, clr_config_seccomp_profile, },
{ "lxc.selinux.context.keyring", true, set_config_selinux_context_keyring, get_config_selinux_context_keyring, clr_config_selinux_context_keyring },
{ "lxc.selinux.context", true, set_config_selinux_context, get_config_selinux_context, clr_config_selinux_context, },
{ "lxc.signal.halt", true, set_config_signal_halt, get_config_signal_halt, clr_config_signal_halt, },
{ "lxc.signal.reboot", true, set_config_signal_reboot, get_config_signal_reboot, clr_config_signal_reboot, },
{ "lxc.signal.stop", true, set_config_signal_stop, get_config_signal_stop, clr_config_signal_stop, },
{ "lxc.start.auto", true, set_config_start, get_config_start, clr_config_start, },
{ "lxc.start.delay", true, set_config_start, get_config_start, clr_config_start, },
{ "lxc.start.order", true, set_config_start, get_config_start, clr_config_start, },
{ "lxc.tty.dir", true, set_config_tty_dir, get_config_tty_dir, clr_config_tty_dir, },
{ "lxc.tty.max", true, set_config_tty_max, get_config_tty_max, clr_config_tty_max, },
{ "lxc.uts.name", true, set_config_uts_name, get_config_uts_name, clr_config_uts_name, },
{ "lxc.sysctl", false, set_config_sysctl, get_config_sysctl, clr_config_sysctl, },
{ "lxc.proc", false, set_config_proc, get_config_proc, clr_config_proc, },
{ "lxc.arch", true, set_config_personality, get_config_personality, clr_config_personality, },
{ "lxc.apparmor.profile", true, set_config_apparmor_profile, get_config_apparmor_profile, clr_config_apparmor_profile, },
{ "lxc.apparmor.allow_incomplete", true, set_config_apparmor_allow_incomplete, get_config_apparmor_allow_incomplete, clr_config_apparmor_allow_incomplete, },
{ "lxc.apparmor.allow_nesting", true, set_config_apparmor_allow_nesting, get_config_apparmor_allow_nesting, clr_config_apparmor_allow_nesting, },
{ "lxc.apparmor.raw", true, set_config_apparmor_raw, get_config_apparmor_raw, clr_config_apparmor_raw, },
{ "lxc.autodev.tmpfs.size", true, set_config_autodev_tmpfs_size, get_config_autodev_tmpfs_size, clr_config_autodev_tmpfs_size, },
{ "lxc.autodev", true, set_config_autodev, get_config_autodev, clr_config_autodev, },
{ "lxc.cap.drop", true, set_config_cap_drop, get_config_cap_drop, clr_config_cap_drop, },
{ "lxc.cap.keep", true, set_config_cap_keep, get_config_cap_keep, clr_config_cap_keep, },
{ "lxc.cgroup2", false, set_config_cgroup2_controller, get_config_cgroup2_controller, clr_config_cgroup2_controller, },
{ "lxc.cgroup.dir", true, set_config_cgroup_dir, get_config_cgroup_dir, clr_config_cgroup_dir, },
{ "lxc.cgroup.relative", true, set_config_cgroup_relative, get_config_cgroup_relative, clr_config_cgroup_relative, },
{ "lxc.cgroup", false, set_config_cgroup_controller, get_config_cgroup_controller, clr_config_cgroup_controller, },
{ "lxc.console.buffer.size", true, set_config_console_buffer_size, get_config_console_buffer_size, clr_config_console_buffer_size, },
{ "lxc.console.logfile", true, set_config_console_logfile, get_config_console_logfile, clr_config_console_logfile, },
{ "lxc.console.path", true, set_config_console_path, get_config_console_path, clr_config_console_path, },
{ "lxc.console.rotate", true, set_config_console_rotate, get_config_console_rotate, clr_config_console_rotate, },
{ "lxc.console.size", true, set_config_console_size, get_config_console_size, clr_config_console_size, },
{ "lxc.environment", true, set_config_environment, get_config_environment, clr_config_environment, },
{ "lxc.ephemeral", true, set_config_ephemeral, get_config_ephemeral, clr_config_ephemeral, },
{ "lxc.execute.cmd", true, set_config_execute_cmd, get_config_execute_cmd, clr_config_execute_cmd, },
{ "lxc.group", true, set_config_group, get_config_group, clr_config_group, },
{ "lxc.hook.autodev", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.clone", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.destroy", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.mount", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.post-stop", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.pre-mount", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.pre-start", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.start", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.start-host", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.stop", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.hook.version", true, set_config_hooks_version, get_config_hooks_version, clr_config_hooks_version, },
{ "lxc.hook", true, set_config_hooks, get_config_hooks, clr_config_hooks, },
{ "lxc.idmap", true, set_config_idmaps, get_config_idmaps, clr_config_idmaps, },
{ "lxc.include", true, set_config_includefiles, get_config_includefiles, clr_config_includefiles, },
{ "lxc.init.cmd", true, set_config_init_cmd, get_config_init_cmd, clr_config_init_cmd, },
{ "lxc.init.gid", true, set_config_init_gid, get_config_init_gid, clr_config_init_gid, },
{ "lxc.init.uid", true, set_config_init_uid, get_config_init_uid, clr_config_init_uid, },
{ "lxc.init.cwd", true, set_config_init_cwd, get_config_init_cwd, clr_config_init_cwd, },
{ "lxc.keyring.session", true, set_config_keyring_session, get_config_keyring_session, clr_config_keyring_session },
{ "lxc.log.file", true, set_config_log_file, get_config_log_file, clr_config_log_file, },
{ "lxc.log.level", true, set_config_log_level, get_config_log_level, clr_config_log_level, },
{ "lxc.log.syslog", true, set_config_log_syslog, get_config_log_syslog, clr_config_log_syslog, },
{ "lxc.monitor.unshare", true, set_config_monitor, get_config_monitor, clr_config_monitor, },
{ "lxc.monitor.signal.pdeath", true, set_config_monitor_signal_pdeath, get_config_monitor_signal_pdeath, clr_config_monitor_signal_pdeath, },
{ "lxc.mount.auto", true, set_config_mount_auto, get_config_mount_auto, clr_config_mount_auto, },
{ "lxc.mount.entry", true, set_config_mount, get_config_mount, clr_config_mount, },
{ "lxc.mount.fstab", true, set_config_mount_fstab, get_config_mount_fstab, clr_config_mount_fstab, },
{ "lxc.namespace.clone", true, set_config_namespace_clone, get_config_namespace_clone, clr_config_namespace_clone, },
{ "lxc.namespace.keep", true, set_config_namespace_keep, get_config_namespace_keep, clr_config_namespace_keep, },
{ "lxc.namespace.share", true, set_config_namespace_share, get_config_namespace_share, clr_config_namespace_share, },
{ "lxc.net.", false, set_config_net_nic, get_config_net_nic, clr_config_net_nic, },
{ "lxc.net", true, set_config_net, get_config_net, clr_config_net, },
{ "lxc.no_new_privs", true, set_config_no_new_privs, get_config_no_new_privs, clr_config_no_new_privs, },
{ "lxc.prlimit", false, set_config_prlimit, get_config_prlimit, clr_config_prlimit, },
{ "lxc.pty.max", true, set_config_pty_max, get_config_pty_max, clr_config_pty_max, },
{ "lxc.rootfs.managed", true, set_config_rootfs_managed, get_config_rootfs_managed, clr_config_rootfs_managed, },
{ "lxc.rootfs.mount", true, set_config_rootfs_mount, get_config_rootfs_mount, clr_config_rootfs_mount, },
{ "lxc.rootfs.options", true, set_config_rootfs_options, get_config_rootfs_options, clr_config_rootfs_options, },
{ "lxc.rootfs.path", true, set_config_rootfs_path, get_config_rootfs_path, clr_config_rootfs_path, },
{ "lxc.seccomp.allow_nesting", true, set_config_seccomp_allow_nesting, get_config_seccomp_allow_nesting, clr_config_seccomp_allow_nesting, },
{ "lxc.seccomp.notify.cookie", true, set_config_seccomp_notify_cookie, get_config_seccomp_notify_cookie, clr_config_seccomp_notify_cookie, },
{ "lxc.seccomp.notify.proxy", true, set_config_seccomp_notify_proxy, get_config_seccomp_notify_proxy, clr_config_seccomp_notify_proxy, },
{ "lxc.seccomp.profile", true, set_config_seccomp_profile, get_config_seccomp_profile, clr_config_seccomp_profile, },
{ "lxc.selinux.context.keyring", true, set_config_selinux_context_keyring, get_config_selinux_context_keyring, clr_config_selinux_context_keyring },
{ "lxc.selinux.context", true, set_config_selinux_context, get_config_selinux_context, clr_config_selinux_context, },
{ "lxc.signal.halt", true, set_config_signal_halt, get_config_signal_halt, clr_config_signal_halt, },
{ "lxc.signal.reboot", true, set_config_signal_reboot, get_config_signal_reboot, clr_config_signal_reboot, },
{ "lxc.signal.stop", true, set_config_signal_stop, get_config_signal_stop, clr_config_signal_stop, },
{ "lxc.start.auto", true, set_config_start, get_config_start, clr_config_start, },
{ "lxc.start.delay", true, set_config_start, get_config_start, clr_config_start, },
{ "lxc.start.order", true, set_config_start, get_config_start, clr_config_start, },
{ "lxc.tty.dir", true, set_config_tty_dir, get_config_tty_dir, clr_config_tty_dir, },
{ "lxc.tty.max", true, set_config_tty_max, get_config_tty_max, clr_config_tty_max, },
{ "lxc.uts.name", true, set_config_uts_name, get_config_uts_name, clr_config_uts_name, },
{ "lxc.sysctl", false, set_config_sysctl, get_config_sysctl, clr_config_sysctl, },
{ "lxc.proc", false, set_config_proc, get_config_proc, clr_config_proc, },
};
static const size_t config_jump_table_size = sizeof(config_jump_table) / sizeof(struct lxc_config_t);
static struct lxc_config_t config_jump_table_net[] = {
/* If a longer key is added please update. */
#define NETWORK_SUBKEY_SIZE_MAX (STRLITERALLEN("veth.vlan.tagged.id") * 2)
{ "flags", true, set_config_net_flags, get_config_net_flags, clr_config_net_flags, },
{ "hwaddr", true, set_config_net_hwaddr, get_config_net_hwaddr, clr_config_net_hwaddr, },
{ "ipv4.address", true, set_config_net_ipv4_address, get_config_net_ipv4_address, clr_config_net_ipv4_address, },
{ "ipv4.gateway", true, set_config_net_ipv4_gateway, get_config_net_ipv4_gateway, clr_config_net_ipv4_gateway, },
{ "ipv6.address", true, set_config_net_ipv6_address, get_config_net_ipv6_address, clr_config_net_ipv6_address, },
{ "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, },
};
struct lxc_config_t *lxc_get_config_exact(const char *key)
{
size_t i;
for (i = 0; i < config_jump_table_size; 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;
}
static inline bool match_config_item(const struct lxc_config_t *entry,
const char *key)
{
if (entry->strict)
return strequal(entry->name, key);
return strnequal(entry->name, key, strlen(entry->name));
}
struct lxc_config_t *lxc_get_config(const char *key)
{
size_t i;
for (i = 0; i < config_jump_table_size; i++) {
for (size_t i = 0; i < ARRAY_SIZE(config_jump_table); i++) {
struct lxc_config_t *cur = &config_jump_table[i];
bool match;
if (cur->strict)
match = strequal(cur->name, key);
else
match = strnequal(config_jump_table[i].name, key,
strlen(config_jump_table[i].name));
if (!match)
if (!match_config_item(cur, key))
continue;
return cur;
}
return NULL;
}
static struct lxc_config_t *lxc_get_config_net(const char *key)
{
for (size_t i = 0; i < ARRAY_SIZE(config_jump_table_net); i++) {
struct lxc_config_t *cur = &config_jump_table_net[i];
if (!match_config_item(cur, key))
continue;
return cur;
......@@ -4721,74 +4737,50 @@ static int get_config_includefiles(const char *key, char *retv, int inlen,
static struct lxc_config_t *get_network_config_ops(const char *key,
struct lxc_conf *lxc_conf,
ssize_t *idx,
char **deindexed_key)
const char **const subkey)
{
__do_free char *copy = NULL;
struct lxc_config_t *config = NULL;
int ret;
unsigned int tmpidx;
size_t numstrlen;
char *idx_start, *idx_end;
int64_t tmpidx;
const char *idx_start, *subkey_start;
char buf[NETWORK_SUBKEY_SIZE_MAX];
if (!idx)
return ret_set_errno(NULL, EINVAL);
if (is_empty_string(key))
return ret_set_errno(NULL, EINVAL);
/* check that this is a sensible network key */
if (!strnequal("lxc.net.", key, STRLITERALLEN("lxc.net.")))
return log_error_errno(NULL, EINVAL, "Invalid network configuration key \"%s\"", key);
copy = strdup(key);
if (!copy)
return log_error_errno(NULL, ENOMEM, "Failed to duplicate string \"%s\"", key);
/* lxc.net.<n> */
if (!isdigit(*(key + STRLITERALLEN("lxc.net."))))
/* beginning of index string */
idx_start = key + STRLITERALLEN("lxc.net.");
if (!isdigit(*idx_start))
return log_error_errno(NULL, EINVAL, "Failed to detect digit in string \"%s\"", key + 8);
/* beginning of index string */
idx_start = copy + (STRLITERALLEN("lxc.net.") - 1);
*idx_start = '\0';
/* end of index string */
idx_end = strchr((copy + STRLITERALLEN("lxc.net.")), '.');
if (idx_end)
*idx_end = '\0';
/* parse current index */
ret = lxc_safe_uint((idx_start + 1), &tmpidx);
if (ret < 0) {
*idx = ret;
return log_error_errno(NULL, -ret, "Failed to parse unsigned integer from string \"%s\"", idx_start + 1);
}
ret = lxc_safe_int64_residual(idx_start, &tmpidx, 10, buf, sizeof(buf));
if (ret)
return log_error_errno(NULL, -ret, "Failed to parse network index");
/* This, of course is utterly nonsensical on so many levels, but
* better safe than sorry.
* (Checking for INT_MAX here is intentional.)
*/
if (tmpidx >= INT_MAX)
if (tmpidx < 0 || tmpidx >= INT_MAX)
return log_error_errno(NULL, ERANGE, "Number of configured networks would overflow the counter");
*idx = tmpidx;
*idx = (ssize_t)tmpidx;
numstrlen = strlen((idx_start + 1));
if (!subkey)
return NULL;
/* repair configuration key */
*idx_start = '.';
subkey_start = &buf[1];
if (is_empty_string(subkey_start))
return log_error_errno(NULL, EINVAL, "No network subkey specified");
/* lxc.net.<idx>.<subkey> */
if (idx_end) {
*idx_end = '.';
if (strlen(idx_end + 1) == 0)
return log_error_errno(NULL, EINVAL, "No subkey in network configuration key \"%s\"", key);
if (isdigit(*(idx_end + 1)))
return log_error_errno(NULL, EINVAL, "Key can't contain more than one index");
memmove(copy + STRLITERALLEN("lxc.net."), idx_end + 1, strlen(idx_end + 1));
copy[strlen(key) - (numstrlen + 1)] = '\0';
config = lxc_get_config(copy);
if (!config)
return log_error_errno(NULL, ENOENT, "Unknown network configuration key \"%s\"", key);
}
if (deindexed_key)
*deindexed_key = move_ptr(copy);
*subkey = subkey_start;
config = lxc_get_config_net(*subkey);
if (!config)
return log_error_errno(NULL, ENOENT, "Unknown network configuration key \"%s\"", key);
return config;
}
......@@ -4800,20 +4792,20 @@ static struct lxc_config_t *get_network_config_ops(const char *key,
static int set_config_net_nic(const char *key, const char *value,
struct lxc_conf *lxc_conf, void *data)
{
__do_free char *deindexed_key = NULL;
const char *subkey = NULL;
ssize_t idx = -1;
const char *idxstring;
struct lxc_config_t *config;
struct lxc_netdev *netdev;
idxstring = key + 8;
idxstring = key + STRLITERALLEN("lxc.net.");
if (!isdigit(*idxstring))
return ret_errno(EINVAL);
if (lxc_config_value_empty(value))
return clr_config_net_nic(key, lxc_conf, data);
config = get_network_config_ops(key, lxc_conf, &idx, &deindexed_key);
config = get_network_config_ops(key, lxc_conf, &idx, &subkey);
if (!config || idx < 0)
return -errno;
......@@ -4821,13 +4813,13 @@ static int set_config_net_nic(const char *key, const char *value,
if (!netdev)
return ret_errno(EINVAL);
return config->set(deindexed_key, value, lxc_conf, netdev);
return config->set(subkey, value, lxc_conf, netdev);
}
static int clr_config_net_nic(const char *key, struct lxc_conf *lxc_conf,
void *data)
{
__do_free char *deindexed_key = NULL;
const char *subkey = NULL;
ssize_t idx = -1;
int ret;
const char *idxstring;
......@@ -4855,7 +4847,7 @@ static int clr_config_net_nic(const char *key, struct lxc_conf *lxc_conf,
return 0;
}
config = get_network_config_ops(key, lxc_conf, &idx, &deindexed_key);
config = get_network_config_ops(key, lxc_conf, &idx, &subkey);
if (!config || idx < 0)
return -errno;
......@@ -4863,7 +4855,7 @@ static int clr_config_net_nic(const char *key, struct lxc_conf *lxc_conf,
if (!netdev)
return ret_errno(EINVAL);
return config->clr(deindexed_key, lxc_conf, netdev);
return config->clr(subkey, lxc_conf, netdev);
}
static int clr_config_net_type(const char *key, struct lxc_conf *lxc_conf,
......@@ -5186,17 +5178,17 @@ static int clr_config_net_veth_ipv6_route(const char *key,
static int get_config_net_nic(const char *key, char *retv, int inlen,
struct lxc_conf *c, void *data)
{
__do_free char *deindexed_key = NULL;
const char *subkey = NULL;
ssize_t idx = -1;
const char *idxstring;
struct lxc_config_t *config;
struct lxc_netdev *netdev;
idxstring = key + 8;
idxstring = key + STRLITERALLEN("lxc.net.");
if (!isdigit(*idxstring))
return ret_errno(EINVAL);
config = get_network_config_ops(key, c, &idx, &deindexed_key);
config = get_network_config_ops(key, c, &idx, &subkey);
if (!config || idx < 0)
return -errno;
......@@ -5204,7 +5196,7 @@ static int get_config_net_nic(const char *key, char *retv, int inlen,
if (!netdev)
return ret_errno(EINVAL);
return config->get(deindexed_key, retv, inlen, c, netdev);
return config->get(subkey, retv, inlen, c, netdev);
}
static int get_config_net_type(const char *key, char *retv, int inlen,
......@@ -5789,7 +5781,7 @@ int lxc_list_config_items(char *retv, int inlen)
else
memset(retv, 0, inlen);
for (i = 0; i < config_jump_table_size; i++) {
for (i = 0; i < ARRAY_SIZE(config_jump_table); i++) {
char *s = config_jump_table[i].name;
if (s[strlen(s) - 1] == '.')
......@@ -5879,9 +5871,9 @@ int lxc_list_net(struct lxc_conf *c, const char *key, char *retv, int inlen)
int fulllen = 0;
ssize_t idx = -1;
idxstring = key + 8;
idxstring = key + STRLITERALLEN("lxc.net.");
if (!isdigit(*idxstring))
return -1;
return ret_errno(EINVAL);
(void)get_network_config_ops(key, c, &idx, NULL);
if (idx < 0)
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment