diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-03-14 03:02:19 +0400 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-09-18 12:01:34 +0400 |
| commit | d20b92ab668cc44fc84bba0001839c5a8013a5cd (patch) | |
| tree | 6a9f99ed0aa7563fcc990f9ec36ae2704672a961 | |
| parent | f8f3d4de2d04e1a5b4293b67faee8ebabc64e9fa (diff) | |
| download | linux-d20b92ab668cc44fc84bba0001839c5a8013a5cd.tar.xz | |
userns: Teach trace to use from_kuid
- When tracing capture the kuid.
- When displaying the data to user space convert the kuid into the
user namespace of the process that opened the report file.
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
| -rw-r--r-- | init/Kconfig | 1 | ||||
| -rw-r--r-- | kernel/trace/trace.c | 3 | ||||
| -rw-r--r-- | kernel/trace/trace.h | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/init/Kconfig b/init/Kconfig index 6de46ef12e3f..2a388e569a28 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -927,7 +927,6 @@ config UIDGID_CONVERTED # Features depends on IMA = n depends on EVM = n - depends on TRACING = n depends on FS_POSIX_ACL = n depends on QUOTA = n depends on QUOTACTL = n diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 5c38c81496ce..c9ace838d509 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2060,7 +2060,8 @@ print_trace_header(struct seq_file *m, struct trace_iterator *iter) seq_puts(m, "# -----------------\n"); seq_printf(m, "# | task: %.16s-%d " "(uid:%d nice:%ld policy:%ld rt_prio:%ld)\n", - data->comm, data->pid, data->uid, data->nice, + data->comm, data->pid, + from_kuid_munged(seq_user_ns(m), data->uid), data->nice, data->policy, data->rt_priority); seq_puts(m, "# -----------------\n"); diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 55e1f7f0db12..40a6f30c985f 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -147,7 +147,7 @@ struct trace_array_cpu { unsigned long skipped_entries; cycle_t preempt_timestamp; pid_t pid; - uid_t uid; + kuid_t uid; char comm[TASK_COMM_LEN]; }; |