[pso] [tema5](linux) accept(socket...

[Cosmin Ratiu]

:)

Macar zi ce era pt posteritate...

Cosmin.

2008/6/8 Alina Simion <alina_simion2002 at yahoo.com>:

> Sunt cascata, never mind.
>
> ----- Original Message ----
> From: Alina Simion <alina_simion2002 at yahoo.com>
> To: Proiectarea Sistemelor de Operare <pso at cursuri.cs.pub.ro>
> Sent: Sunday, June 8, 2008 12:05:38 AM
> Subject: Re: [pso] [tema5](linux) accept(socket...
>
> Eu ziceam ca nu trece de accept ruland strict testul pe sistemul "outside",
> nu apuc sa rulez pe masina inside pentru ca se termina scriptul (nu si
> programul test care ramane in background blocat la accept).
> do_accept(sock, 0) nu se termina... (mai precis nu trece de csock = accept
> (sock, (struct sockaddr *) &caddr, &csize); )
> Vorbesc strict de rularea testului pe masina gazda.
>
>
> ----- Original Message ----
> From: Razvan Deaconescu <razvan.deaconescu at cs.pub.ro>
> To: Proiectarea Sistemelor de Operare <pso at cursuri.cs.pub.ro>
> Sent: Saturday, June 7, 2008 11:51:57 PM
> Subject: Re: [pso] [tema5](linux) accept(socket...
>
> On Sat, 2008-06-07 at 10:41 -0700, Alina Simion wrote:
> > Am urmatoarea problema: cand rulez _local_checker.sh pe "outside", imi
> > ramane blocat la acceptul din do_accept din:
> > test ("establish control connection", (sock = do_listen (SOCK_STREAM,
> > cport)) > 0 && (control_socket = do_accept (sock, 0)) > 0);
> > Mai precis scriptul se termina si ramane procesul in background blocat
> > la accept, l-am deblocat doar setand timeoutul in test diferit de 0,
> > caz in care acceptul iese cu EINTR (normal).
> > Cateodata afiseaza: [: 18: $[0+1]: bad number
> >
> > Rularea am facut-o pe doua masini virtuale.
> > Primele dati cand am rulat totusi a mers, a ramas in asteptare si am
> > putut rula in masina "inside" testul. Acum vad ca nu mai trece de
> > accept pe "outside", fara sa rulez nimic in masina "inside". Nu merge
> > nici dand revert to snapshopul unde initial a mers, nici restartand
> > masina. Reteaua merge, merge ping intre cele doua masini, merge ssh.
> >
> > Vreo idee de la ce poate fi?
>
> Probabil ca nu lasi sa treaca niste pachete. Adica le dai drop, desi ar
> trebui sa le dai accept.
>
> Pentru testare poti folosi
>
> pe sistem gazda
>
> ./test outside adresa_IP_masina_virtuala 55555      (Linux)
> test.exe outside adresa_IP_masina_virtuala 55555    (Windows)
>
> pe masina virtuala
> ./test inside adresa_IP_host 55555
>
> Razvan
>
>
>
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