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Kernel+Userland: Add "settime" pledge promise for setting system time

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We now require the "settime" promise from pledged processes who want to
change the system time.
This commit is contained in:
Andreas Kling 2020-05-08 22:54:17 +02:00
parent 1cddb1055f
commit 5bfd893292
4 changed files with 29 additions and 22 deletions
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2
Kernel/Process.cpp
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@ -4360,7 +4360,7 @@ int Process::sys$clock_gettime(clockid_t clock_id, timespec* user_ts)
int Process::sys$clock_settime(clockid_t clock_id, timespec* user_ts)
{
REQUIRE_PROMISE(stdio);
REQUIRE_PROMISE(settime);
if (!is_superuser())
return -EPERM;

37
Kernel/Process.h
View file

@ -53,24 +53,25 @@ void kgettimeofday(timeval&);
extern VirtualAddress g_return_to_ring3_from_signal_trampoline;
#define ENUMERATE_PLEDGE_PROMISES \
__ENUMERATE_PLEDGE_PROMISE(stdio) \
__ENUMERATE_PLEDGE_PROMISE(rpath) \
__ENUMERATE_PLEDGE_PROMISE(wpath) \
__ENUMERATE_PLEDGE_PROMISE(cpath) \
__ENUMERATE_PLEDGE_PROMISE(dpath) \
__ENUMERATE_PLEDGE_PROMISE(inet) \
__ENUMERATE_PLEDGE_PROMISE(id) \
__ENUMERATE_PLEDGE_PROMISE(proc) \
__ENUMERATE_PLEDGE_PROMISE(exec) \
__ENUMERATE_PLEDGE_PROMISE(unix) \
__ENUMERATE_PLEDGE_PROMISE(fattr) \
__ENUMERATE_PLEDGE_PROMISE(tty) \
__ENUMERATE_PLEDGE_PROMISE(chown) \
__ENUMERATE_PLEDGE_PROMISE(chroot) \
__ENUMERATE_PLEDGE_PROMISE(thread) \
__ENUMERATE_PLEDGE_PROMISE(video) \
__ENUMERATE_PLEDGE_PROMISE(accept) \
#define ENUMERATE_PLEDGE_PROMISES \
__ENUMERATE_PLEDGE_PROMISE(stdio) \
__ENUMERATE_PLEDGE_PROMISE(rpath) \
__ENUMERATE_PLEDGE_PROMISE(wpath) \
__ENUMERATE_PLEDGE_PROMISE(cpath) \
__ENUMERATE_PLEDGE_PROMISE(dpath) \
__ENUMERATE_PLEDGE_PROMISE(inet) \
__ENUMERATE_PLEDGE_PROMISE(id) \
__ENUMERATE_PLEDGE_PROMISE(proc) \
__ENUMERATE_PLEDGE_PROMISE(exec) \
__ENUMERATE_PLEDGE_PROMISE(unix) \
__ENUMERATE_PLEDGE_PROMISE(fattr) \
__ENUMERATE_PLEDGE_PROMISE(tty) \
__ENUMERATE_PLEDGE_PROMISE(chown) \
__ENUMERATE_PLEDGE_PROMISE(chroot) \
__ENUMERATE_PLEDGE_PROMISE(thread) \
__ENUMERATE_PLEDGE_PROMISE(video) \
__ENUMERATE_PLEDGE_PROMISE(accept) \
__ENUMERATE_PLEDGE_PROMISE(settime) \
__ENUMERATE_PLEDGE_PROMISE(shared_buffer)
enum class Pledge : u32 {