Currently, when the user wants to create GTP device, he has to provide file handles to the sockets created in userspace (IFLA_GTP_FD0, IFLA_GTP_FD1). This behaviour is not ideal, considering the option of adding support for GTP device creation through ip link. Ip link application is not a good place to create such sockets. This patch allows to create GTP device without providing IFLA_GTP_FD0 and IFLA_GTP_FD1 arguments. If the user sets IFLA_GTP_CREATE_SOCKETS attribute, then GTP module takes care of creating UDP sockets by itself. Sockets are created with the commonly known UDP ports used for GTP protocol (GTP0_PORT and GTP1U_PORT). In this case we don't have to provide encap_destroy because no extra deinitialization is needed, everything is covered by udp_tunnel_sock_release. Note: GTP instance created with only this change applied, does not handle GTP Echo Requests. This is implemented in the following patch.
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| @@ -887,6 +887,7 @@ enum { · 886 unmodified lines | ||
| 887 | 887 | IFLA_GTP_FD1, |
| 888 | 888 | IFLA_GTP_PDP_HASHSIZE, |
| 889 | 889 | IFLA_GTP_ROLE, |
| 890 | + IFLA_GTP_CREATE_SOCKETS, | |
| 890 | 891 | __IFLA_GTP_MAX, |
| 891 | 892 | }; |
| 892 | 893 | #define IFLA_GTP_MAX (__IFLA_GTP_MAX - 1) |