Ping ! Le jeudi 20 décembre 2012 à 21:56 +0100, Laurent Vivier a écrit : > This allows to pass the device name. > > You can test this with the "route" command. > > WITHOUT this patch: > > $ sudo route add -net default gw 10.0.3.1 eth0 > SIOCADDRT: Bad address > $ netstat -nr > Kernel IP routing table > Destination Gateway Genmask Flags MSS Window irtt Iface > 10.0.3.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 > > WITH this patch: > > $ sudo route add -net default gw 10.0.3.1 eth0 > $ 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 > > Signed-off-by: Laurent Vivier <laur...@vivier.eu> > --- > linux-user/syscall.c | 64 > ++++++++++++++++++++++++++++++++++++++++++++ > linux-user/syscall_types.h | 4 ++- > 2 files changed, 67 insertions(+), 1 deletion(-) > > diff --git a/linux-user/syscall.c b/linux-user/syscall.c > index 501002b..c2a2343 100644 > --- a/linux-user/syscall.c > +++ b/linux-user/syscall.c > @@ -3691,6 +3691,70 @@ static IOCTLEntry ioctl_entries[] = { > { 0, 0, }, > }; > > +static void target_to_host_string (void *dst, const void *src) > +{ > +#if HOST_LONG_BITS == 32 && TARGET_ABI_BITS == 32 > + if (*(uint32_t*)src == 0) { > + *(uint32_t*)dst = 0; > + return; > + } > + *(uint32_t *)dst = (uint32_t)g2h(tswap32(*(uint32_t *)src)); > +#elif HOST_LONG_BITS == 64 && TARGET_ABI_BITS == 32 > + if (*(uint32_t*)src == 0) { > + *(uint64_t*)dst = 0; > + return; > + } > + *(uint64_t *)dst = (uint64_t)g2h(tswap32(*(uint32_t *)src)); > +#elif HOST_LONG_BITS == 64 && TARGET_ABI_BITS == 64 > + if (*(uint64_t*)src == 0) { > + *(uint64_t*)dst = 0; > + return; > + } > + *(uint64_t *)dst = (uint64_t)g2h(tswap64(*(uint64_t *)src)); > +#elif HOST_LONG_BITS == 32 && TARGET_ABI_BITS == 64 > + if (*(uint64_t*)src == 0) { > + *(uint32_t*)dst = 0; > + return; > + } > + *(uint32_t *)dst = (uint32_t)g2h(tswap64(*(uint64_t *)src)); > +#endif > +} > + > +static void host_to_target_string (void *dst, const void *src) > +{ > +#if HOST_LONG_BITS == 32 && TARGET_ABI_BITS == 32 > + if (*(uint32_t*)src == 0) { > + *(uint32_t*)dst = 0; > + return; > + } > + *(uint32_t *)dst = tswap32(h2g(*(uint32_t *)src)); > +#elif HOST_LONG_BITS == 64 && TARGET_ABI_BITS == 32 > + if (*(uint64_t*)src == 0) { > + *(uint32_t*)dst = 0; > + return; > + } > + *(uint32_t *)dst = tswap32(h2g(*(uint64_t *)src)); > +#elif HOST_LONG_BITS == 64 && TARGET_ABI_BITS == 64 > + if (*(uint64_t*)src == 0) { > + *(uint64_t*)dst = 0; > + return; > + } > + *(uint64_t *)dst = tswap64(h2g(*(uint64_t *)src)); > +#elif HOST_LONG_BITS == 32 && TARGET_ABI_BITS == 64 > + if (*(uint32_t*)src == 0) { > + *(uint64_t*)dst = 0; > + return; > + } > + *(uint64_t *)dst = tswap64(h2g(*(uint32_t *)src)); > +#endif > +} > + > +static const StructEntry struct_string_def = { > + .convert = { host_to_target_string, target_to_host_string }, > + .size = { sizeof(target_long), sizeof(long) }, > + .align = { __alignof__(target_long), __alignof__(long) }, > +}; > + > /* ??? Implement proper locking for ioctls. */ > /* do_ioctl() Must return target values and target errnos. */ > static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg) > diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h > index 44b6a58..51fc023 100644 > --- a/linux-user/syscall_types.h > +++ b/linux-user/syscall_types.h > @@ -14,9 +14,11 @@ STRUCT(serial_icounter_struct, > STRUCT(sockaddr, > TYPE_SHORT, MK_ARRAY(TYPE_CHAR, 14)) > > +STRUCT_SPECIAL(string) > + > STRUCT(rtentry, > TYPE_ULONG, MK_STRUCT(STRUCT_sockaddr), MK_STRUCT(STRUCT_sockaddr), > MK_STRUCT(STRUCT_sockaddr), > - TYPE_SHORT, TYPE_SHORT, TYPE_ULONG, TYPE_PTRVOID, TYPE_SHORT, > TYPE_PTRVOID, > + TYPE_SHORT, TYPE_SHORT, TYPE_ULONG, TYPE_PTRVOID, TYPE_SHORT, > MK_STRUCT(STRUCT_string), > TYPE_ULONG, TYPE_ULONG, TYPE_SHORT) > > STRUCT(ifmap,
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