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| author | Thomas Haller <thaller@redhat.com> | 2014-11-26 17:17:16 (GMT) |
|---|---|---|
| committer | Thomas Haller <thaller@redhat.com> | 2014-11-27 09:34:57 (GMT) |
| commit | b54775d3169b56d9c0aee47d6937b0358a5443e0 (patch) | |
| tree | c50289c17a86575fe9cbafb87e278608ca137cef /include | |
| parent | 8b023fd441c3fd96aad2acca31d2702b1aa1f21e (diff) | |
| download | libnl-b54775d3169b56d9c0aee47d6937b0358a5443e0.zip libnl-b54775d3169b56d9c0aee47d6937b0358a5443e0.tar.gz libnl-b54775d3169b56d9c0aee47d6937b0358a5443e0.tar.bz2 | |
route/link: return -NLE_OPNOTSUPP in rtnl_link_get_kernel() for old kernels
Older kernels without patch a3d1289126e7b14307074b76bf1677015ea5036f do
not support rtnl_getlink() by ifname. Detect this situation and fail
with -NLE_OPNOTSUPP instead of -NLE_INVAL.
This changes behavior in returning a different error code for this
case.
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Thomas Haller <thaller@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/netlink/utils.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/netlink/utils.h b/include/netlink/utils.h index 6b4b787..431502f 100644 --- a/include/netlink/utils.h +++ b/include/netlink/utils.h @@ -113,6 +113,14 @@ enum { NL_CAPABILITY_NL_CONNECT_RETRY_GENERATE_PORT_ON_ADDRINUSE = 4, #define NL_CAPABILITY_NL_CONNECT_RETRY_GENERATE_PORT_ON_ADDRINUSE NL_CAPABILITY_NL_CONNECT_RETRY_GENERATE_PORT_ON_ADDRINUSE + /** + * Indicate that rtnl_link_get_kernel() fails with -NLE_OPNOTSUPP in case + * of older kernals not supporting lookup by ifname. This changes behavior + * from returning -NLE_INVAL to return -NLE_OPNOTSUPP. + */ + NL_CAPABILITY_ROUTE_LINK_GET_KERNEL_FAIL_OPNOTSUPP = 5, +#define NL_CAPABILITY_ROUTE_LINK_GET_KERNEL_FAIL_OPNOTSUPP NL_CAPABILITY_ROUTE_LINK_GET_KERNEL_FAIL_OPNOTSUPP + __NL_CAPABILITY_MAX #define NL_CAPABILITY_MAX (__NL_CAPABILITY_MAX - 1) }; |