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| author | Tonghao Zhang <xiangxia.m.yue@gmail.com> | 2018-01-28 03:38:58 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-29 14:32:31 -0500 |
| commit | 30e948a37839c633d18f6c4cf8a212912ba9449c (patch) | |
| tree | eef7c45ed1adf85d124930e4447b15f361185a37 /net/ipv4 | |
| parent | 40ca54e3a686f13117f3de0c443f8026dadf7c44 (diff) | |
| download | linux-30e948a37839c633d18f6c4cf8a212912ba9449c.tar.bz2 | |
ipv4: Get the address of interface correctly.
When using ioctl to get address of interface, we can't
get it anymore. For example, the command is show as below.
# ifconfig eth0
In the patch ("03aef17bb79b3"), the devinet_ioctl does not
return a suitable value, even though we can find it in
the kernel. Then fix it now.
Fixes: 03aef17bb79b3 ("devinet_ioctl(): take copyin/copyout to caller")
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/devinet.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index e056c0067f2c..40f001782c1b 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1048,18 +1048,22 @@ int devinet_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr) switch (cmd) { case SIOCGIFADDR: /* Get interface address */ + ret = 0; sin->sin_addr.s_addr = ifa->ifa_local; break; case SIOCGIFBRDADDR: /* Get the broadcast address */ + ret = 0; sin->sin_addr.s_addr = ifa->ifa_broadcast; break; case SIOCGIFDSTADDR: /* Get the destination address */ + ret = 0; sin->sin_addr.s_addr = ifa->ifa_address; break; case SIOCGIFNETMASK: /* Get the netmask for the interface */ + ret = 0; sin->sin_addr.s_addr = ifa->ifa_mask; break; |