mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-20 16:51:37 +00:00
0d8aec0c3a
Unfortunately, SECCOMP_MODE_FILTER is not currently exposed to userspace, so we can't checkpoint that. In any case, this is what we need to do for SECCOMP_MODE_STRICT, so let's do it. This patch works by first disabling seccomp for any processes who are going to have seccomp filters restored, then restoring the process (including the seccomp filters), and finally resuming the seccomp filters before detaching from the process. v2 changes: * update for kernel patch v2 * use protobuf enum for seccomp type * don't parse /proc/pid/status twice v3 changes: * get rid of extra CR_STAGE_SECCOMP_SUSPEND stage * only suspend seccomp in finalize_restore(), just before the unmap * restore the (same) seccomp state in threads too; also add a note about how this is slightly wrong, and that we should at least check for a mismatch Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
97 lines
2.1 KiB
Protocol Buffer
97 lines
2.1 KiB
Protocol Buffer
import "core-x86.proto";
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import "core-arm.proto";
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import "core-aarch64.proto";
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import "core-ppc64.proto";
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import "rlimit.proto";
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import "timer.proto";
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import "siginfo.proto";
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import "opts.proto";
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/*
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* These match the SECCOMP_MODE_* flags from <linux/seccomp.h>.
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*/
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enum seccomp_mode {
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disabled = 0;
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strict = 1;
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filter = 2;
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};
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message task_core_entry {
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required uint32 task_state = 1;
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required uint32 exit_code = 2;
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required uint32 personality = 3;
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required uint32 flags = 4;
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required uint64 blk_sigset = 5[(criu).hex = true];
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required string comm = 6;
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optional task_timers_entry timers = 7;
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optional task_rlimits_entry rlimits = 8;
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optional uint32 cg_set = 9;
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optional signal_queue_entry signals_s = 10;
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optional seccomp_mode seccomp_mode = 11;
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}
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message task_kobj_ids_entry {
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required uint32 vm_id = 1;
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required uint32 files_id = 2;
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required uint32 fs_id = 3;
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required uint32 sighand_id = 4;
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optional uint32 pid_ns_id = 5;
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optional uint32 net_ns_id = 6;
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optional uint32 ipc_ns_id = 7;
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optional uint32 uts_ns_id = 8;
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optional uint32 mnt_ns_id = 9;
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optional uint32 user_ns_id = 10;
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}
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message thread_sas_entry {
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required uint64 ss_sp = 1;
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required uint64 ss_size = 2;
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required uint32 ss_flags = 3;
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}
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message thread_core_entry {
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required uint64 futex_rla = 1;
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required uint32 futex_rla_len = 2;
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optional sint32 sched_nice = 3;
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optional uint32 sched_policy = 4;
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optional uint32 sched_prio = 5;
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optional uint64 blk_sigset = 6;
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optional thread_sas_entry sas = 7;
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optional uint32 pdeath_sig = 8;
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optional signal_queue_entry signals_p = 9;
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}
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message task_rlimits_entry {
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repeated rlimit_entry rlimits = 1;
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};
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message core_entry {
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enum march {
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UNKNOWN = 0;
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X86_64 = 1;
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ARM = 2;
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AARCH64 = 3;
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PPC64 = 4;
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}
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required march mtype = 1;
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optional thread_info_x86 thread_info = 2;
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optional thread_info_arm ti_arm = 6;
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optional thread_info_aarch64 ti_aarch64 = 8;
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optional thread_info_ppc64 ti_ppc64 = 9;
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optional task_core_entry tc = 3;
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optional task_kobj_ids_entry ids = 4;
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optional thread_core_entry thread_core = 5;
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}
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