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Kernel: Add syscalls for set{,e,re}{uid,gid}

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Bananymous
2023-06-11 22:15:35 +03:00
parent 9288537949
commit 3fe67e4882
7 changed files with 339 additions and 1 deletions
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6
libc/include/sys/syscall.h
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@@ -26,6 +26,12 @@ __BEGIN_DECLS
#define SYS_FSTAT 19
#define SYS_SETENVP 20
#define SYS_READ_DIR_ENTRIES 21
#define SYS_SET_UID 22
#define SYS_SET_GID 23
#define SYS_SET_EUID 24
#define SYS_SET_EGID 25
#define SYS_SET_REUID 26
#define SYS_SET_REGID 27
__END_DECLS

68
libc/unistd.cpp
View File

@@ -175,6 +175,44 @@ long syscall(long syscall, ...)
ret = Kernel::syscall(SYS_READ_DIR_ENTRIES, fd, (uintptr_t)buffer, buffer_size);
break;
}
case SYS_SET_UID:
{
uid_t uid = va_arg(args, uid_t);
ret = Kernel::syscall(SYS_SET_UID, uid);
break;
}
case SYS_SET_GID:
{
gid_t gid = va_arg(args, gid_t);
ret = Kernel::syscall(SYS_SET_GID, gid);
break;
}
case SYS_SET_EUID:
{
uid_t uid = va_arg(args, uid_t);
ret = Kernel::syscall(SYS_SET_EUID, uid);
break;
}
case SYS_SET_EGID:
{
gid_t gid = va_arg(args, gid_t);
ret = Kernel::syscall(SYS_SET_EGID, gid);
break;
}
case SYS_SET_REUID:
{
uid_t ruid = va_arg(args, uid_t);
uid_t euid = va_arg(args, uid_t);
ret = Kernel::syscall(SYS_SET_REUID, ruid, euid);
break;
}
case SYS_SET_REGID:
{
gid_t rgid = va_arg(args, gid_t);
gid_t egid = va_arg(args, gid_t);
ret = Kernel::syscall(SYS_SET_REGID, rgid, egid);
break;
}
default:
puts("LibC: Unhandeled syscall");
ret = -ENOSYS;
@@ -283,3 +321,33 @@ unsigned int sleep(unsigned int seconds)
{
return syscall(SYS_SLEEP, seconds);
}
int seteuid(uid_t uid)
{
return syscall(SYS_SET_EUID, uid);
}
int setegid(gid_t gid)
{
return syscall(SYS_SET_EGID, gid);
}
int setuid(uid_t uid)
{
return syscall(SYS_SET_UID, uid);
}
int setgid(gid_t gid)
{
return syscall(SYS_SET_GID, gid);
}
int setreuid(uid_t ruid, uid_t euid)
{
return syscall(SYS_SET_REUID, ruid, euid);
}
int setregid(gid_t rgid, gid_t egid)
{
return syscall(SYS_SET_REGID, rgid, egid);
}