diff options
author | Luca Giraudo <lgiraudo@nicira.com> | 2011-12-06 13:01:25 -0800 |
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committer | Ben Pfaff <blp@nicira.com> | 2011-12-06 13:01:27 -0800 |
commit | 733adf2aaf614cf7735e1c6f8466900ea79a7f98 (patch) | |
tree | e4a7d15367cc4778c4a8d001bdaf79e5bc03eee2 /lib/netdev.c | |
parent | dcc13bc6eec136b35c5810fda27c1077ba89d1b3 (diff) |
ofproto-dpif-sflow: allow sFlow to infer the agent device.
Bug #2407.
Diffstat (limited to 'lib/netdev.c')
-rw-r--r-- | lib/netdev.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/netdev.c b/lib/netdev.c index e77fcdfa..eff6e4cb 100644 --- a/lib/netdev.c +++ b/lib/netdev.c @@ -692,6 +692,26 @@ netdev_set_in4(struct netdev *netdev, struct in_addr addr, struct in_addr mask) : EOPNOTSUPP); } +/* Obtains ad IPv4 address from device name and save the address in + * in4. Returns 0 if successful, otherwise a positive errno value. + */ +int +netdev_get_in4_by_name(const char *device_name, struct in_addr *in4) +{ + struct netdev *netdev; + int error; + + error = netdev_open(device_name, "system", &netdev); + if (error) { + in4->s_addr = htonl(0); + return error; + } + + error = netdev_get_in4(netdev, in4, NULL); + netdev_close(netdev); + return error; +} + /* Adds 'router' as a default IP gateway for the TCP/IP stack that corresponds * to 'netdev'. */ int |