Pau Espin
f5fbb419ef
This patch is quite big because implementing echo req/resp and recovery requires having knowledge and managing differentiated state for each GSN peer attached/connected to osmo-ggsn. This kind of information was not available in osmo-ggsn nor in libgtp. So osmo-ggsn is now able to track GSN peers connected to a ggsn_ctx (associated gsn_t from libgtp) by means of "sgsn_peer" data structure, and accessible from the ggsn through a list. The instances of sgsn_peer are currently allocated and destroyed dynamically based on discovered peer who have at least a pdp context attached to us (we are not interested in peers without pdp contexts because we don't need to send echo requests/responses and maintain state in that case). A new private pointer (pdp_t->priv) data structure struct pdp_priv_t is added to be able to relate a pdp_t to an sgsn as well as the already existing pointer to an apn. An "echo-interval <0-36000>" VTY command is added which allows configuring time wait between echo requests being sent to each sgsn_peer. Transmission of echo requests is disabled by default. Finally, a new "show sgsn" VTY command is introduced, and its output is also printed during "show ggsn". Related: OS#4165 Change-Id: Id2c84165dc59dff495106758146a701ca488834f |
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| .. | ||
| Makefile.am | ||
| checksum.c | ||
| checksum.h | ||
| ggsn.c | ||
| ggsn.h | ||
| ggsn_main.c | ||
| ggsn_vty.c | ||
| icmpv6.c | ||
| icmpv6.h | ||
| pco.c | ||
| pco.h | ||
| sgsn.c | ||
| sgsn.h | ||