Here is the logic Samba uses for inode
determination, per Jermey Allison:
Ok, here's how we construct the 64-bit return
value for that field:
/********************************************************************
Create a 64 bit FileIndex. If the file is on the same device as
the root of the share, just return the 64-bit inode. If it isn't,
mangle as we used to do.
********************************************************************/
uint64_t get_FileIndex(connection_struct *conn, const SMB_STRUCT_STAT *psbuf)
{
uint64_t file_index;
if (conn->base_share_dev == psbuf->st_ex_dev) {
return (uint64_t)psbuf->st_ex_ino;
}
file_index = ((psbuf->st_ex_ino) & UINT32_MAX); /* FileIndexLow */
file_index |= ((uint64_t)((psbuf->st_ex_dev) & UINT32_MAX)) << 32; /*
FileIndexHigh */
return file_index;
}
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