From: Stacey Son <sson@FreeBSD.org>
Date: Sun, 13 Aug 2023 08:41:34 +0000 (+0200)
Subject: bsd-user: Implement h2t_freebsd_fhandle t2h_freebsd_fhandle
X-Git-Tag: v8.2.0-rc0~154^2~20
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f2bc92aaf3d2944fd41073ed3bfb5addf9ee96e7;p=thirdparty%2Fqemu.git

bsd-user: Implement h2t_freebsd_fhandle t2h_freebsd_fhandle

Implement the stat conversion functions:
h2t_freebsd_fhandle
t2h_freebsd_fhandle

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>
Signed-off-by: Warner Losh <imp@bsdimp.com>
---

diff --git a/bsd-user/freebsd/os-stat.c b/bsd-user/freebsd/os-stat.c
index 8c73f7402c2..6716cee3e22 100644
--- a/bsd-user/freebsd/os-stat.c
+++ b/bsd-user/freebsd/os-stat.c
@@ -92,3 +92,40 @@ abi_long h2t_freebsd11_nstat(abi_ulong target_addr,
     return 0;
 }
 
+/*
+ * file handle conversion
+ */
+abi_long t2h_freebsd_fhandle(fhandle_t *host_fh, abi_ulong target_addr)
+{
+    target_freebsd_fhandle_t *target_fh;
+
+    if (!lock_user_struct(VERIFY_READ, target_fh, target_addr, 1)) {
+        return -TARGET_EFAULT;
+    }
+    __get_user(host_fh->fh_fsid.val[0], &target_fh->fh_fsid.val[0]);
+    __get_user(host_fh->fh_fsid.val[1], &target_fh->fh_fsid.val[0]);
+    __get_user(host_fh->fh_fid.fid_len, &target_fh->fh_fid.fid_len);
+    /* u_short         fid_data0; */
+    memcpy(host_fh->fh_fid.fid_data, target_fh->fh_fid.fid_data,
+        TARGET_MAXFIDSZ);
+    unlock_user_struct(target_fh, target_addr, 0);
+    return 0;
+}
+
+abi_long h2t_freebsd_fhandle(abi_ulong target_addr, fhandle_t *host_fh)
+{
+    target_freebsd_fhandle_t *target_fh;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_fh, target_addr, 0)) {
+        return -TARGET_EFAULT;
+    }
+    __put_user(host_fh->fh_fsid.val[0], &target_fh->fh_fsid.val[0]);
+    __put_user(host_fh->fh_fsid.val[1], &target_fh->fh_fsid.val[0]);
+    __put_user(host_fh->fh_fid.fid_len, &target_fh->fh_fid.fid_len);
+    /* u_short         fid_data0; */
+    memcpy(target_fh->fh_fid.fid_data, host_fh->fh_fid.fid_data,
+            TARGET_MAXFIDSZ);
+    unlock_user_struct(target_fh, target_addr, 1);
+    return 0;
+}
+