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bsd-user: Implement pdgetpid(2) and the undocumented setugid.

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Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230925182425.3163-26-kariem.taha2.7@gmail.com>
This commit is contained in:
Stacey Son 2023-09-25 21:24:22 +03:00 committed by Warner Losh
parent 159e5b0c4b
commit 0571e3f5e2
2 changed files with 31 additions and 0 deletions
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23
bsd-user/freebsd/os-proc.h
View File

@ -34,6 +34,8 @@ pid_t safe_wait4(pid_t wpid, int *status, int options, struct rusage *rusage);
pid_t safe_wait6(idtype_t idtype, id_t id, int *status, int options,
struct __wrusage *wrusage, siginfo_t *infop);
extern int __setugid(int flag);
/* execve(2) */
static inline abi_long do_freebsd_execve(abi_ulong path_or_fd, abi_ulong argp,
abi_ulong envp)
@ -162,4 +164,25 @@ static inline abi_long do_freebsd_getloginclass(abi_ulong arg1, abi_ulong arg2)
return ret;
}
/* pdgetpid(2) */
static inline abi_long do_freebsd_pdgetpid(abi_long fd, abi_ulong target_pidp)
{
abi_long ret;
pid_t pid;
ret = get_errno(pdgetpid(fd, &pid));
if (!is_error(ret)) {
if (put_user_u32(pid, target_pidp)) {
return -TARGET_EFAULT;
}
}
return ret;
}
/* undocumented __setugid */
static inline abi_long do_freebsd___setugid(abi_long arg1)
{
return -TARGET_ENOSYS;
}
#endif /* BSD_USER_FREEBSD_OS_PROC_H */

8
bsd-user/freebsd/os-syscall.c
View File

@ -383,6 +383,14 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
ret = do_freebsd_getloginclass(arg1, arg2);
break;
case TARGET_FREEBSD_NR_pdgetpid: /* pdgetpid(2) */
ret = do_freebsd_pdgetpid(arg1, arg2);
break;
case TARGET_FREEBSD_NR___setugid: /* undocumented */
ret = do_freebsd___setugid(arg1);
break;
case TARGET_FREEBSD_NR_utrace: /* utrace(2) */
ret = do_bsd_utrace(arg1, arg2);
break;