Re: DLT type requested for OpenSolaris IPNET header

[Guy Harris <guy () alum mit edu>]

On Jul 14, 2009, at 5:53 PM, Darren Reed wrote:

> I'd like to request a DLT type for the "ipnet device" on OpenSolaris.
>
> A description of the packet header can be found here:
>
> http://arc.opensolaris.org/caselog/PSARC/2009/232/commitment.materials/bpf-psarc.txt
>
> and the relevant structure name is "dl_ipnetinfo".

To quote the document:

> struct dl_ipnetinfo {
>         uint8_t         dli_version;
>         uint8_t         dli_family;
>         uint16_t        dli_htype;
>         uint32_t        dli_pktlen;
>         uint32_t        dli_ifindex;
>         uint32_t        dli_grifindex;
>         uint32_t        dli_zsrc;
>         uint32_t        dli_zdst;
> };
> typedef struct dl_ipnetinfo dl_ipnetinfo_t;
>
> dli_version   - version number (2)
> dli_family    - protocol family (AF_INET, AF_INET6, etc)

Presumably those are Solaris values for the protocol family; could you  
enumerate the possible numerical values for the protocol family?  AF_  
values can differ from platform to platform; everybody probably picked  
up the same value for AF_INET from BSD, but AF_INET6 came after that  
point, and it has different values on different platforms.

> dli_htype     - hook type (in, out, local)

Presumably there are specific values for those (0, 1, and 2, or  
whatever).

> dli_pktlen    - length of the packet excluding this header
> dli_ifindex   - interface index number
> dli_grifindex - group interface index number (for IPMP interfaces)

Are those standard interface index numbers?  (Many OSes seem to have a  
standard notion of interface numbers - does that come from SNMP?)

> dli_zsrc      - zone identifier for the source of the packet
> dli_zdst      - zone identifier for the destination of the packet

Presumably those identifiers are just numbers.

-
This is the tcpdump-workers list.
Visit https://cod.sandelman.ca/ to unsubscribe.