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Revert "BACKPORT: perf_event: Add support for LSM and SELinux checks"

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This reverts commit 8af21ac176 as it
breaks the build :(

Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: Ryan Savitski <rsavitski@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
2020-01-09 11:07:21 +01:00
parent 999765145e
commit 58fd41cb2d
13 changed files with 40 additions and 262 deletions
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36
include/linux/perf_event.h
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@@ -55,7 +55,6 @@ struct perf_guest_info_callbacks {
#include <linux/perf_regs.h>
#include <linux/workqueue.h>
#include <linux/cgroup.h>
#include <linux/security.h>
#include <asm/local.h>
struct perf_callchain_entry {
@@ -705,9 +704,6 @@ struct perf_event {
struct perf_cgroup *cgrp; /* cgroup event is attach to */
#endif
#ifdef CONFIG_SECURITY
void *security;
#endif
struct list_head sb_list;
#endif /* CONFIG_PERF_EVENTS */
};
@@ -1198,46 +1194,24 @@ extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
int perf_event_max_stack_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos);
/* Access to perf_event_open(2) syscall. */
#define PERF_SECURITY_OPEN 0
/* Finer grained perf_event_open(2) access control. */
#define PERF_SECURITY_CPU 1
#define PERF_SECURITY_KERNEL 2
#define PERF_SECURITY_TRACEPOINT 3
static inline bool perf_paranoid_any(void)
{
return sysctl_perf_event_paranoid > 2;
}
static inline int perf_is_paranoid(void)
static inline bool perf_paranoid_tracepoint_raw(void)
{
return sysctl_perf_event_paranoid > -1;
}
static inline int perf_allow_kernel(struct perf_event_attr *attr)
static inline bool perf_paranoid_cpu(void)
{
if (sysctl_perf_event_paranoid > 1 && !capable(CAP_SYS_ADMIN))
return -EACCES;
return security_perf_event_open(attr, PERF_SECURITY_KERNEL);
return sysctl_perf_event_paranoid > 0;
}
static inline int perf_allow_cpu(struct perf_event_attr *attr)
static inline bool perf_paranoid_kernel(void)
{
if (sysctl_perf_event_paranoid > 0 && !capable(CAP_SYS_ADMIN))
return -EACCES;
return security_perf_event_open(attr, PERF_SECURITY_CPU);
}
static inline int perf_allow_tracepoint(struct perf_event_attr *attr)
{
if (sysctl_perf_event_paranoid > -1 && !capable(CAP_SYS_ADMIN))
return -EPERM;
return security_perf_event_open(attr, PERF_SECURITY_TRACEPOINT);
return sysctl_perf_event_paranoid > 1;
}
extern void perf_event_init(void);