Created
April 17, 2019 02:48
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signed __int64 __fastcall apfs_snapshot_rename_raw(rename_call_struct *args) | |
{ | |
void *v_mount; // x0 | |
__int64 fs_private; // x19 | |
snap_info_args_struct *oldsnap_info; // x8 | |
__int64 oldname_len; // x20 | |
unsigned __int8 *oldname; // x21 | |
snap_info_args_struct *newsnap_info; // x8 | |
unsigned __int64 namelen; // x22 | |
unsigned __int8 *newname; // x23 | |
int v10; // w8 | |
int v11; // w9 | |
signed __int64 v13; // x10 | |
char *v14; // x11 | |
char *v15; // x12 | |
char v16; // t1 | |
char v17; // t1 | |
__int64 ret; // x0 MAPDST | |
void *snap_vnode; // x25 | |
signed int a3; // [xsp+44h] [xbp-6Ch] | |
__int64 snap_data_out; // [xsp+48h] [xbp-68h] | |
__int64 result; // [xsp+50h] [xbp-60h] | |
__int64 fsnode; // [xsp+58h] [xbp-58h] MAPDST | |
__int64 v29; // [xsp+60h] [xbp-50h] | |
__int64 snap_xid; // [xsp+68h] [xbp-48h] | |
v_mount = vnode_mount_stub(args->vnode); | |
fs_private = vfs_fsprivate(v_mount); | |
v29 = 0LL; | |
result = 0LL; | |
fsnode = 0LL; | |
snap_data_out = 0LL; | |
if ( *(*(fs_private + 0xB8) + 0x11CLL) | |
|| *(vnode_fsnode_stub(args->vnode) + 8) | |
|| *vnode_fsnode_stub(args->vnode) != 1 | |
|| *(vnode_fsnode_stub(args->fvp) + 8) | |
|| *vnode_fsnode_stub(args->fvp) != 1 ) | |
{ | |
return 1LL; | |
} | |
oldsnap_info = args->oldsnap_info; | |
oldname_len = oldsnap_info->oldname_len; | |
oldname = oldsnap_info->oldname_buf; | |
newsnap_info = args->newsnap_info; | |
namelen = newsnap_info->oldname_len; | |
newname = newsnap_info->oldname_buf; | |
v10 = *oldname; | |
if ( v10 == 46 && (oldname_len == 1 || oldname_len == 2 && oldname[1] == 46) ) | |
return 22LL; | |
v11 = *newname; | |
if ( v11 == 46 && (namelen == 1 || namelen == 2 && newname[1] == 46) ) | |
return 22LL; | |
if ( namelen > 255 ) | |
return 63LL; | |
if ( oldname_len == namelen ) | |
{ | |
if ( oldname_len ) | |
{ | |
v13 = 1 - oldname_len; | |
v14 = (newname + 1); | |
v15 = (oldname + 1); | |
while ( v10 == v11 ) | |
{ | |
if ( !v11 || !v13 ) | |
return 22LL; | |
v16 = *v15++; | |
LOBYTE(v10) = v16; | |
v17 = *v14++; | |
LOBYTE(v11) = v17; | |
++v13; | |
} | |
goto LABEL_23; | |
} | |
return 22LL; | |
} | |
LABEL_23: | |
if ( apfs_find_snap_from_name(newname, namelen, 0LL, 0LL) & 1 ) | |
return 1LL; | |
sub_FFFFFFF006AA1CDC(*(fs_private + 7872)); | |
++*(fs_private + 7864); | |
sub_FFFFFFF006AA1CF4(*(fs_private + 7872)); | |
sub_FFFFFFF006AA1D18(*(fs_private + 7840)); | |
sub_FFFFFFF006A28870(fs_private); | |
sub_FFFFFFF006AA1D30(*(fs_private + 7848)); | |
ret = sub_FFFFFFF006A1E6D8(fs_private, newname, namelen, &result); | |
if ( ret != 2 ) | |
{ | |
if ( !ret ) | |
{ | |
sub_FFFFFFF006A5ED28(result); | |
ret = 17LL; | |
} | |
goto LABEL_47; | |
} | |
if ( apfs_find_snap_from_name(oldname, oldname_len, &a3, &snap_xid) ) | |
{ | |
if ( a3 != 1 ) | |
{ | |
ret = 2LL; | |
goto LABEL_47; | |
} | |
ret = sub_FFFFFFF006A1E5A0(fs_private, snap_xid, &fsnode, &snap_data_out); | |
} | |
else | |
{ | |
ret = apfs_lookup_snap(fs_private, oldname, oldname_len, &fsnode, &snap_data_out); | |
} | |
if ( ret ) | |
{ | |
LABEL_35: | |
if ( fsnode ) | |
sub_FFFFFFF006A5ED28(fsnode); | |
goto LABEL_47; | |
} | |
snap_vnode = apfs_jhash_getvnode(fs_private, *(fs_private + 0x1B8), *(fsnode + 8), 1LL, 0LL, 0LL); | |
if ( snap_vnode && (sub_FFFFFFF006A5ED28(fsnode), fsnode = vnode_fsnode_stub(snap_vnode), *(fsnode + 49) & 0x40) ) | |
{ | |
ret = 1LL; | |
} | |
else | |
{ | |
v29 = 0LL; | |
ret = fs_tx_enter_recursively(fs_private, 1LL, 4LL, 0LL, &v29); | |
if ( !ret ) | |
{ | |
ret = fs_rename_snapshot(fs_private, fsnode, snap_data_out, newname, namelen, v29); | |
if ( ret ) | |
vprintf_sth_stub(aSDFsRenameSnap, aApfsSnapVnopRe_0, 898LL, oldname, oldname_len, newname, namelen, ret); | |
} | |
if ( !snap_vnode ) | |
goto LABEL_35; | |
} | |
vnode_put_stub(snap_vnode); | |
LABEL_47: | |
if ( snap_data_out ) | |
sub_FFFFFFF006A5ED28(snap_data_out); | |
if ( v29 ) | |
{ | |
sub_FFFFFFF006A66B50(fs_private, 1LL, 4LL, 0LL); | |
v29 = 0LL; | |
} | |
sub_FFFFFFF006AA1D54(*(fs_private + 7840)); | |
sub_FFFFFFF006AA1D60(*(fs_private + 7848)); | |
return ret; | |
} |
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