Hi, Guy, On 08/14/2014 06:01 PM, Guy Harris wrote: > > On Aug 14, 2014, at 1:34 PM, Fernando Gont <ferna...@gont.com.ar> > wrote: > >> While trying to select() on a pcap descriptor in solaris > > Which version? Solaris 11 (in which pcap descriptors should refer to > BPF devices), or earlier (in which pcap descriptors should refer to > DLPI STREAMS devices)?
fgont@solaris:~/ipv6toolkit$ uname -a SunOS solaris 5.11 11.1 i86pc i386 i86pc >> I found the following: >> >> 1) It seems that pcap descriptors are never readable or writeable. >> (-- This is different from *BSD and Linux, where at least you seem >> to be able to check for readability) >> >> 2) It would seem that even trying to select() on such descriptors >> causes trouble. For example, I get a kind of random "Bad file >> number" error from select when I try to check for >> readability/writeability. > > I wouldn't expect that prior to Solaris 11 - select() and poll() Just > Work on STREAMS devices, as I remember. You wouldn't expect them to fail, or to work properly? > It could, however, be that Sun^WOracle screwed up with BPF; > unfortunately, Solaris 11 is ClosedSolaris, so I can't just look at > the source and see what they did wrong. Seems like a long time since I last installed it... But I could try with the CD they released circa 2009 -- that one was open source. > I'll try this on my Solaris 11 virtual machine. > >> Is the above assessment correct? Should I not even try to call >> select() on pcap descriptors in Solaris? > > If they screwed up on Solaris 11, you probably shouldn't try to call > select(); instead, you should try to call Oracle and report this as a > bug (and tell them that, if they fix this, they should fix it so that > if you have a timeout set with BIOCSRTIMEOUT, the timer should start > as soon as a select() or poll() is done, so that, when the timeout > expires, it can report the descriptor as readable - the original BPF > didn't do that, and all the *BSDs and OS X eventually fixed it). Point noted. I'll wait for your response above, and will proceed as indicated if necessary. Thanks so much (yet one more time)! Best regards, -- Fernando Gont e-mail: ferna...@gont.com.ar || fg...@si6networks.com PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1 _______________________________________________ tcpdump-workers mailing list tcpdump-workers@lists.tcpdump.org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
