Remote memory access through FireWire?
From: Omen Wild (Omen.Wild_at_Dartmouth.EDU)
Date: 10/31/03
- Previous message: Alex Riesen: "Re: 2.6.0-test9: lilo tried to access just umounted medium"
- Next in thread: Valdis.Kletnieks_at_vt.edu: "Re: Remote memory access through FireWire?"
- Reply: Valdis.Kletnieks_at_vt.edu: "Re: Remote memory access through FireWire?"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: Fri, 31 Oct 2003 17:36:28 -0500 To: linux-kernel <linux-kernel@vger.kernel.org>
I just ran accross this kerneltrap article:
http://kerneltrap.org/node/view/145/334
Quoting from the page:
"As you know, IEEE1394 is a bus and OHCI supports physical access to
the host memory. This means that you can access the remote host over
firewire without software support at the remote host. In other words,
you can investigate remote host's physical memory whether its OS is
alive or crashed or hangs up."
The article is talking about FreeBSD, but I was wondering if Linux has
a similar issue. Can someone plugged into the FireWire bus
snoop/modify the entire contents of Linux's memory?
Thanks,
Omen
-- The cost of living hasn't affected its popularity.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
- application/pgp-signature attachment: stored
- Previous message: Alex Riesen: "Re: 2.6.0-test9: lilo tried to access just umounted medium"
- Next in thread: Valdis.Kletnieks_at_vt.edu: "Re: Remote memory access through FireWire?"
- Reply: Valdis.Kletnieks_at_vt.edu: "Re: Remote memory access through FireWire?"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
- Re: MSI to memory?
... Helge> Won't that put a bad load on the bus? ... the PCI device writes
directly to a host address. ... memory, so there's no bus load to poll the memory.
... (Linux-Kernel) - 6.1-BETA4: NIC doesnt work with ACPI enabled
... cbb0: Found memory at 80000000 ... Secondary bus set to 2 subbus 3 ...
cardbus1: Non-prefetchable memory at 88000000-880000ff ... Index IRQ Rtd Ref IRQs
... (freebsd-stable) - [2.4] lockup on boot with 2.4.26
... Uncompressing kernel... ... Bus 0, device 0, function 0: ... Non-prefetchable
32 bit memory at 0xe3000000. ... # Loadable module support ... (Linux-Kernel) - Re: A7N8X-E deluxe : new ram problem
... rock stable for 2 years in Dual channel 200mhz mode and since I've ... The Nforce2
chipset has three memory slots, ... Two slots fit on one data bus. ... is
the use of 128Mx4 chips. ... (alt.comp.periphs.mainboard.asus) - Recent -current hangs on Tyan S2460 before finishing boot
... Disabling ACPI in the BIOS has no apparent effect on the hang. ... Physical
memory chunk: ... irq 2 ... bus 0 dev 7 func 3 ... (freebsd-current)