the decapsulator dispatch changes in 2001. Problems found and fixed
by Christine Jones of BBN. Specifically:
Check for a packet's protocol to be ENCAP_PROTO, not AF_INET.
Remove one-back cache for last vif, because vif_encapcheck is called
for each vif, rather than being expected to find the appropriate vif.
The cache usage caused packets to be input on the wrong vif and hence
usually dropped.
In vif_encapcheck, verify the local source as well. While mrouted
endeavors not to create multiple tunnels with a peer, a packet
arriving with the wrong local address is still wrong and should not be
accepted. (This is a correctness nit, not a security issue.) Order
checks to fail quickly for packets being checked to see if they match
a vif other than the one they belong on (essentially, check peer
source address in outer header first).
Claim 69 bits of match (32 each from outer src/dst and 5 from checking
that inner dst is within 224/5). This should result in the vif having
a higher priority for multicast packets compared to a parallel gif(4)
tunnel, and that both seems appropriate if both are configured and
seems to match the semantics expected by the decapsulator dispatch
machinery.
(These changes were made in 2.99.15 and about a dozen nodes are
running them with many vifs. ip_mroute.c has not changed
significantly since then (February 2005) and the changes applied
cleanly to current and compile cleanly.)
- Verified Exec -> Veriexec
- pseudo-device is `veriexec'
- veriexec.conf -> signatures, and mention /etc/signatures as the default
location
- We use veriexec's strict level, not the system securelevel
- Mention the `direct' option
- Mention that the signatures file can have multiple options in a single
entry, comma-separated
- Mention that both `direct' and `indirect' access modes are implied
if no access modes are explicitly mention in the options
- Bump date
firmware likes to put PCI memory resources into this range, notably a Rage
IIc which puts the 2nd register aperture to 0x2000.
This should allow a few graphics chips to work with XFree86 which previously
failed with something like this:
(WW) ATI: PCI/AGP Mach64 in slot 2:5:0 could not be detected!
No devices to configure. Configuration failed.
Thanks to Florian Stoehr for doing most of the work tracking this down.
- Don't initialise ic_phytype twice and do initialise ic_state.
- announce available rates.
- mark interface down if firmware crashes for the radio transmitter
gets turned off.
- cast more returns to void.
- use waitpid instead of wait() to wait for our process, not accidentally
wait for other children.
- return exitstatus only if exited, and return the termination signal otherwise.
gdt