[DiscordArchive] Hey robinsch, have another question about vmt.
[DiscordArchive] Hey robinsch, have another question about vmt.
Original source
`virtual table`'s intent is to have same class behave differently depending on what class has inherited this base class.
It's achieved by rewriting the `virtual table` pointer, which usually is at `0x0` offset of the class
rektbyfaith
06-06-2025, 12:32 PM #21Archived author: Deamon • Posted: 2025-06-06T12:32:30.021000+00:00
Original source
`virtual table`'s intent is to have same class behave differently depending on what class has inherited this base class.
It's achieved by rewriting the `virtual table` pointer, which usually is at `0x0` offset of the class
Original source
`virtual table` from descendent class would be similar to `base class` except the functions it overriden
rektbyfaith
06-06-2025, 12:33 PM #22Archived author: Deamon • Posted: 2025-06-06T12:33:27.880000+00:00
Original source
`virtual table` from descendent class would be similar to `base class` except the functions it overriden
Original source
but we have multiple inheritance
rektbyfaith
06-06-2025, 12:33 PM #23Archived author: robinsch • Posted: 2025-06-06T12:33:43.718000+00:00
Original source
but we have multiple inheritance
Original source
therefore there can be multiple vtables
rektbyfaith
06-06-2025, 12:33 PM #24Archived author: robinsch • Posted: 2025-06-06T12:33:52.644000+00:00
Original source
therefore there can be multiple vtables
Original source
and thats exactly what you are seeing in `CSimpleFrame`
rektbyfaith
06-06-2025, 12:34 PM #25Archived author: robinsch • Posted: 2025-06-06T12:34:16.549000+00:00
Original source
and thats exactly what you are seeing in `CSimpleFrame`
Original source
Multimple inheritance is the same as having two objects as class fields
rektbyfaith
06-06-2025, 12:35 PM #26Archived author: Deamon • Posted: 2025-06-06T12:35:35.045000+00:00
Original source
Multimple inheritance is the same as having two objects as class fields
Original source
Anyway, from schlumpf's idb for WoD:
![[Image: image.png?ex=690c9653&is=690b44d3&hm=41f...357311975&]](https://cdn.discordapp.com/attachments/1086807686571642900/1380525780697616415/image.png?ex=690c9653&is=690b44d3&hm=41f6ebbce950805a67e7370f6df04943e3c8ff379624f4632cfa356357311975&)
![[Image: image.png?ex=690c9653&is=690b44d3&hm=7b5...ab3ca144a&]](https://cdn.discordapp.com/attachments/1086807686571642900/1380525781150863481/image.png?ex=690c9653&is=690b44d3&hm=7b5917fef86255aa2899982a29a53b13421b1807da736cdfe78b94cab3ca144a&)
rektbyfaith
06-06-2025, 12:36 PM #27Archived author: Deamon • Posted: 2025-06-06T12:36:35.122000+00:00
Original source
Anyway, from schlumpf's idb for WoD:
Original source
![[Image: image.png?ex=690c9676&is=690b44f6&hm=981...df9e40bb7&]](https://cdn.discordapp.com/attachments/1086807686571642900/1380525927326547969/image.png?ex=690c9676&is=690b44f6&hm=981ed10f09028415be4de777b35555f8147a7b9ef5165dee3e786cedf9e40bb7&)
rektbyfaith
06-06-2025, 12:37 PM #28Archived author: Deamon • Posted: 2025-06-06T12:37:09.993000+00:00
Original source
Original source
for memory layout you can do it if you generate the vmt in IDA structs; but for reimplemtation you should not do that
rektbyfaith
06-06-2025, 12:40 PM #29Archived author: robinsch • Posted: 2025-06-06T12:40:39.449000+00:00
Original source
for memory layout you can do it if you generate the vmt in IDA structs; but for reimplemtation you should not do that
Original source
fair
rektbyfaith
06-06-2025, 12:42 PM #30Archived author: Deamon • Posted: 2025-06-06T12:42:50.907000+00:00
Original source
fair
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