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| author | Michael Brown | 2016-03-07 22:03:25 +0100 |
|---|---|---|
| committer | Michael Brown | 2016-03-07 22:04:40 +0100 |
| commit | fcf3b0354428df2e8237b7d0fca2457ff7d87fac (patch) | |
| tree | 153de6f7283d9071c2914158219954ec6cf2996c /src/net/netdevice.c | |
| parent | [librm] Support ioremap() for addresses above 4GB in a 64-bit build (diff) | |
| download | ipxe-fcf3b0354428df2e8237b7d0fca2457ff7d87fac.tar.gz ipxe-fcf3b0354428df2e8237b7d0fca2457ff7d87fac.tar.xz ipxe-fcf3b0354428df2e8237b7d0fca2457ff7d87fac.zip | |
[netdevice] Refuse to create duplicate network device names
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/net/netdevice.c')
| -rw-r--r-- | src/net/netdevice.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/net/netdevice.c b/src/net/netdevice.c index 7c40a2ac..b834c3cd 100644 --- a/src/net/netdevice.c +++ b/src/net/netdevice.c @@ -675,6 +675,14 @@ int register_netdev ( struct net_device *netdev ) { goto err_duplicate; } + /* Reject named network devices that already exist */ + if ( netdev->name[0] && ( duplicate = find_netdev ( netdev->name ) ) ) { + DBGC ( netdev, "NETDEV rejecting duplicate name %s\n", + duplicate->name ); + rc = -EEXIST; + goto err_duplicate; + } + /* Record device index and create device name */ if ( netdev->name[0] == '\0' ) { snprintf ( netdev->name, sizeof ( netdev->name ), "net%d", |