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nexedi
babeld
Commits
7fd93b09
Commit
7fd93b09
authored
Jun 30, 2008
by
Juliusz Chroboczek
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Detect bridged interfaces, disable wired optimisations on them.
parent
ec101080
Changes
1
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51 additions
and
0 deletions
+51
-0
kernel_netlink.c
kernel_netlink.c
+51
-0
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kernel_netlink.c
View file @
7fd93b09
...
...
@@ -39,6 +39,7 @@ THE SOFTWARE.
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/if_bridge.h>
#if (__GLIBC__ < 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 5)
#define RTA_TABLE 15
...
...
@@ -596,6 +597,51 @@ kernel_interface_mtu(const char *ifname, int ifindex)
return
req
.
ifr_mtu
;
}
static
int
isbridge
(
const
char
*
ifname
,
int
ifindex
)
{
char
buf
[
256
];
int
rc
,
i
;
unsigned
long
args
[
3
];
int
indices
[
256
];
rc
=
snprintf
(
buf
,
256
,
"/sys/class/net/%s"
,
ifname
);
if
(
rc
<
0
||
rc
>=
256
)
goto
fallback
;
if
(
access
(
buf
,
R_OK
)
<
0
)
goto
fallback
;
rc
=
snprintf
(
buf
,
256
,
"/sys/class/net/%s/bridge"
,
ifname
);
if
(
rc
<
0
||
rc
>=
256
)
goto
fallback
;
if
(
access
(
buf
,
F_OK
)
>=
0
)
return
1
;
else
if
(
errno
==
ENOENT
)
return
0
;
fallback:
args
[
0
]
=
BRCTL_GET_BRIDGES
;
args
[
1
]
=
(
unsigned
long
)
indices
;
args
[
2
]
=
256
;
rc
=
ioctl
(
dgram_socket
,
SIOCGIFBR
,
args
);
if
(
rc
<
0
)
{
if
(
errno
==
ENOPKG
)
return
0
;
else
return
-
1
;
}
for
(
i
=
0
;
i
<
rc
;
i
++
)
{
if
(
indices
[
i
]
==
ifindex
)
return
1
;
}
return
0
;
}
int
kernel_interface_wireless
(
const
char
*
ifname
,
int
ifindex
)
{
...
...
@@ -605,6 +651,11 @@ kernel_interface_wireless(const char *ifname, int ifindex)
struct
ifreq
req
;
int
rc
;
if
(
isbridge
(
ifname
,
ifindex
)
!=
0
)
{
/* Give up. */
return
-
1
;
}
memset
(
&
req
,
0
,
sizeof
(
req
));
strncpy
(
req
.
ifr_name
,
ifname
,
sizeof
(
req
.
ifr_name
));
rc
=
ioctl
(
dgram_socket
,
SIOCGIWNAME
,
&
req
);
...
...
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