linux_dsm_epyc7002/fs/proc
Casey Schaufler 6d9c939dbe procfs: add smack subdir to attrs
Back in 2007 I made what turned out to be a rather serious
mistake in the implementation of the Smack security module.
The SELinux module used an interface in /proc to manipulate
the security context on processes. Rather than use a similar
interface, I used the same interface. The AppArmor team did
likewise. Now /proc/.../attr/current will tell you the
security "context" of the process, but it will be different
depending on the security module you're using.

This patch provides a subdirectory in /proc/.../attr for
Smack. Smack user space can use the "current" file in
this subdirectory and never have to worry about getting
SELinux attributes by mistake. Programs that use the
old interface will continue to work (or fail, as the case
may be) as before.

The proposed S.A.R.A security module is dependent on
the mechanism to create its own attr subdirectory.

The original implementation is by Kees Cook.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
2019-01-08 13:18:44 -08:00
..
array.c mm, proc: report PR_SET_THP_DISABLE in proc 2018-12-28 12:11:50 -08:00
base.c procfs: add smack subdir to attrs 2019-01-08 13:18:44 -08:00
cmdline.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
consoles.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
cpuinfo.c x86 / CPU: Always show current CPU frequency in /proc/cpuinfo 2017-11-15 19:46:50 +01:00
devices.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
fd.c proc: use "unsigned int" in proc_fill_cache() 2018-06-07 17:34:38 -07:00
fd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
generic.c proc: smaller readlock section in readdir("/proc") 2018-08-22 10:52:45 -07:00
inode.c fs/proc/inode.c: delete unnecessary variable in proc_alloc_inode() 2019-01-04 13:13:45 -08:00
internal.h procfs: add smack subdir to attrs 2019-01-08 13:18:44 -08:00
interrupts.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
Kconfig proc/kcore: add vmcoreinfo note to /proc/kcore 2018-08-22 10:52:46 -07:00
kcore.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
kmsg.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
loadavg.c sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD 2018-10-26 16:26:32 -07:00
Makefile proc: : uninline name_to_int() 2017-11-17 16:10:00 -08:00
meminfo.c mm, proc: add KReclaimable to /proc/meminfo 2018-10-26 16:26:32 -07:00
namespaces.c procfs: switch instantiate_t to d_splice_alias() 2018-05-26 14:20:50 -04:00
nommu.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
page.c /proc/kpagecount: return 0 for special pages that are never mapped 2018-12-28 12:11:50 -08:00
proc_net.c proc: Add a way to make network proc files writable 2018-05-18 11:46:15 +01:00
proc_sysctl.c proc/sysctl: don't return ENOMEM on lookup when a table is unregistering 2018-12-13 20:59:44 -05:00
proc_tty.c tty: replace ->proc_fops with ->proc_show 2018-05-16 07:24:30 +02:00
root.c proc: Make inline name size calculation automatic 2018-06-15 00:48:57 -04:00
self.c proc: introduce a proc_pid_ns helper 2018-05-16 07:23:35 +02:00
softirqs.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
stat.c proc: use "unsigned int" in /proc/stat hook 2018-08-22 10:52:46 -07:00
task_mmu.c mm, thp, proc: report THP eligibility for each vma 2018-12-28 12:11:50 -08:00
task_nommu.c mm: /proc/pid/*maps remove is_pid and related wrappers 2018-08-22 10:52:44 -07:00
thread_self.c proc: introduce a proc_pid_ns helper 2018-05-16 07:23:35 +02:00
uptime.c fs/proc/uptime.c: use ktime_get_boottime_ts64 2018-08-22 10:52:45 -07:00
util.c fs/proc/util.c: include fs/proc/internal.h for name_to_int() 2019-01-04 13:13:45 -08:00
version.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
vmcore.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00