Le mercredi 02 janvier 2013 à 00:08 +0100, Laurent Vivier a écrit :
> Ping !
ping
> Le jeudi 20 décembre 2012 à 21:53 +0100, Laurent Vivier a écrit :
> > This patch allows to have IP addresses in correct order
> > in the case of "netstat -nr" when the endianess of the
> > guest differs from one of the host.
> >
> > For instance, an m68k guest on an x86_64 host:
> >
> > WITHOUT this patch:
> >
> > $ netstat -nr
> > Kernel IP routing table
> > Destination Gateway Genmask Flags MSS Window irtt
> > Iface
> > 0.0.0.0 1.3.0.10 0.0.0.0 UG 0 0 0
> > eth0
> > 0.3.0.10 0.0.0.0 0.255.255.255 U 0 0 0
> > eth0
> > $ cat /proc/net/route
> > Iface Destination Gateway Flags RefCnt Use Metric
> > Mask MTU Window IRTT
> >
> > eth0 00000000 0103000A 0003 0 0 0
> > 000000000 0 0
> > eth0 0003000A 00000000 0001 0 0 0
> > 00FFFFFF0 0 0
> >
> > WITH this patch:
> >
> > $ netstat -nr
> > Kernel IP routing table
> > Destination Gateway Genmask Flags MSS Window irtt
> > Iface
> > 0.0.0.0 10.0.3.1 0.0.0.0 UG 0 0 0
> > eth0
> > 10.0.3.0 0.0.0.0 255.255.255.0 U 0 0 0
> > eth0
> > $ cat /proc/net/route
> > Iface Destination Gateway Flags RefCnt Use Metric
> > Mask MTU Window IRTT
> > eth0 00000000 0a000301 0003 0 0 0
> > 000000000 0 0
> > eth0 0a000300 00000000 0001 0 0 0
> > ffffff000 0 0
> >
> > Signed-off-by: Laurent Vivier <laur...@vivier.eu>
> > ---
> > linux-user/syscall.c | 42 ++++++++++++++++++++++++++++++++++++++++++
> > 1 file changed, 42 insertions(+)
> >
> > diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> > index e99adab..501002b 100644
> > --- a/linux-user/syscall.c
> > +++ b/linux-user/syscall.c
> > @@ -5085,6 +5085,45 @@ static int open_self_auxv(void *cpu_env, int fd)
> > return 0;
> > }
> >
> > +#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
> > +static int open_net_route(void *cpu_env, int fd)
> > +{
> > + FILE *fp;
> > + char *line = NULL;
> > + size_t len = 0;
> > + ssize_t read;
> > +
> > + fp = fopen("/proc/net/route", "r");
> > + if (fp == NULL) {
> > + return -EACCES;
> > + }
> > +
> > + /* read header */
> > +
> > + read = getline(&line, &len, fp);
> > + dprintf(fd, "%s", line);
> > +
> > + /* read routes */
> > +
> > + while ((read = getline(&line, &len, fp)) != -1) {
> > + char iface[16];
> > + uint32_t dest, gw, mask;
> > + unsigned int flags, refcnt, use, metric, mtu, window, irtt;
> > + sscanf(line,
> > "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
> > + iface, &dest, &gw, &flags, &refcnt, &use, &metric,
> > + &mask, &mtu, &window, &irtt);
> > + dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
> > + iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
> > + metric, tswap32(mask), mtu, window, irtt);
> > + }
> > +
> > + free(line);
> > + fclose(fp);
> > +
> > + return 0;
> > +}
> > +#endif
> > +
> > static int do_open(void *cpu_env, const char *pathname, int flags, mode_t
> > mode)
> > {
> > struct fake_open {
> > @@ -5096,6 +5135,9 @@ static int do_open(void *cpu_env, const char
> > *pathname, int flags, mode_t mode)
> > { "/proc/self/maps", open_self_maps },
> > { "/proc/self/stat", open_self_stat },
> > { "/proc/self/auxv", open_self_auxv },
> > +#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
> > + { "/proc/net/route", open_net_route },
> > +#endif
> > { NULL, NULL }
> > };
> >
>
--
"Just play. Have fun. Enjoy the game."
- Michael Jordan
"Just play. Have fun. Enjoy the game."
- Michael Jordan
