From 0571e3f5e20e4a93b0d59c948bcd89b60033d0be Mon Sep 17 00:00:00 2001 From: Stacey Son Date: Mon, 25 Sep 2023 21:24:22 +0300 Subject: [PATCH] bsd-user: Implement pdgetpid(2) and the undocumented setugid. Signed-off-by: Stacey Son Signed-off-by: Karim Taha Reviewed-by: Richard Henderson Reviewed-by: Warner Losh Message-Id: <20230925182425.3163-26-kariem.taha2.7@gmail.com> --- bsd-user/freebsd/os-proc.h | 23 +++++++++++++++++++++++ bsd-user/freebsd/os-syscall.c | 8 ++++++++ 2 files changed, 31 insertions(+) diff --git a/bsd-user/freebsd/os-proc.h b/bsd-user/freebsd/os-proc.h index 2eaba141dc..42bdd61904 100644 --- a/bsd-user/freebsd/os-proc.h +++ b/bsd-user/freebsd/os-proc.h @@ -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 */ diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index d614409e69..99af0f6b15 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -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; -- 2.39.2