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seccomp: Use own seccomp_metadata_t type

Browse source 
On fedora rawhide seccomp_metadata for some
reason is not defined (while in kernel it introduced
together with PTRACE_SECCOMP_GET_METADATA). So
lets do a trick for a while -- define own alias.
Once system headers get settled down we might find
more suitable solution. Because it's a part of kernel
API we're on the safe side.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This commit is contained in:
Cyrill Gorcunov 2018-05-22 23:21:01 +03:00 • committed by Pavel Emelyanov
parent 2a63e3983b
commit 39cf3060a3
2 changed files with 9 additions and 5 deletions
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12
compel/include/uapi/ptrace.h
View file

@ -52,13 +52,17 @@
#ifndef PTRACE_SECCOMP_GET_METADATA
# define PTRACE_SECCOMP_GET_METADATA 0x420d
#endif /* PTRACE_SECCOMP_GET_METADATA */
struct seccomp_metadata {
/*
* struct seccomp_metadata is not yet
* settled down well in headers so use
* own identical definition for a while.
*/
typedef struct {
uint64_t filter_off; /* Input: which filter */
uint64_t flags; /* Output: filter's flags */
};
#endif /* PTRACE_SECCOMP_GET_METADATA */
} seccomp_metadata_t;
#ifdef PTRACE_EVENT_STOP
# if PTRACE_EVENT_STOP == 7 /* Bad value from Linux 3.1-3.3, fixed in 3.4 */

2
criu/seccomp.c
View file

@ -131,7 +131,7 @@ int seccomp_dump_thread(pid_t tid_real, ThreadCoreEntry *thread_core)
static int collect_filter(struct seccomp_entry *entry)
{
struct seccomp_metadata meta_buf, *meta = &meta_buf;
seccomp_metadata_t meta_buf, *meta = &meta_buf;
struct seccomp_filter_chain *chain, *prev;
struct sock_filter buf[BPF_MAXINSNS];
size_t i;