tcpdump mailing list archives
Re: AIX BPF driver load
From: Guy Harris <gharris () sonic net>
Date: Thu, 6 Feb 2003 21:52:10 -0800
On Fri, Feb 07, 2003 at 02:36:16PM +1100, Shaun wrote:
AIX 4.33 doesn't ship with a libpcap but the version compiled into tcpdump does indeed load the driver and construct the necessary /dev entries. The AIX 5.1 version of libpcap automatically loads the driver and constructs the /dev entries as necessary when bpf_open is called.
"bpf_open()", or "pcap_open_live()"?
the BSDs I know of, Digital UNIX, and AIX 4.3 have "struct bpf_program" and "struct bpf_insn" structures that are the same as they are in libpcap (I suspect the same is true of 5.x - Shaun, is that the case?);Yep, at least for 32 bit userland programs
What does it do for 64-bit userland programs? As I remember from diffing the libpcap bpf.h and the AIX 4.3 bpf.h, it looks as if they use the same types in "bpf_program" and "bpf_insn", i.e. they use u_int for "bf_len" in "bpf_program", and use a combination of "u_short", "u_char", and "bpf_int32" in "bpf_insn" - and "bpf_int32" is typedeffed to "int". Are "u_char" 8 bits, "u_short 16 bits", and "int" and "u_int" 32 bits for 64-bit programs? - This is the TCPDUMP workers list. It is archived at http://www.tcpdump.org/lists/workers/index.html To unsubscribe use mailto:tcpdump-workers-request () tcpdump org?body=unsubscribe
Current thread:
- AIX BPF driver load Shaun (Feb 05)
- Re: AIX BPF driver load Guy Harris (Feb 05)
- Re: AIX BPF driver load Guy Harris (Feb 05)
- <Possible follow-ups>
- Re: AIX BPF driver load Guy Harris (Feb 06)
- Re: AIX BPF driver load Shaun (Feb 06)
- Re: AIX BPF driver load Guy Harris (Feb 06)
- Re: AIX BPF driver load Shaun (Feb 06)
- Re: AIX BPF driver load Guy Harris (Feb 06)
- Re: AIX BPF driver load Guy Harris (Feb 07)
- Re: AIX BPF driver load Shaun (Feb 09)
- Re: AIX BPF driver load Guy Harris (Feb 10)
- Re: AIX BPF driver load Guy Harris (Feb 10)
- Re: AIX BPF driver load Guy Harris (Feb 10)
- Re: AIX BPF driver load Shaun (Feb 10)
- Re: AIX BPF driver load Guy Harris (Feb 10)
- Re: AIX BPF driver load Shaun (Feb 06)
- Re: AIX BPF driver load Guy Harris (Feb 05)