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bankd: createMapping should implicitly delete existing mappings 

As explained in OS#4278, a remsim-bankd currently doesn't recover after
a remsim-server resetart, since old mappings remain in the bankd, and
the server has no chance of removing them.

To avoid this problem, a createMapping now always implicitly removes
any existing mapping that may exist for the given bankdSlot.

Change-Id: I83e319d22896b881c0d882542842f500075aa546
Closes: OS#4278
This commit is contained in:
Harald Welte 2019-12-04 15:06:33 +01:00
parent 550b2958d3
commit e6fa46acd5
1 changed files with 13 additions and 0 deletions
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13
src/bankd/bankd_main.c
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@ -176,6 +176,18 @@ static int bankd_srvc_handle_rx(struct rspro_server_conn *srvc, const RsproPDU_t
} else {
rspro2bank_slot(&bs, &creq->bank);
rspro2client_slot(&cs, &creq->client);
/* check if map exists */
map = slotmap_by_bank(g_bankd->slotmaps, &bs);
if (map) {
if (client_slot_equals(&map->client, &cs)) {
LOGPFSML(srvc->fi, LOGL_ERROR, "ignoring identical slotmap\n");
resp = rspro_gen_CreateMappingRes(ResultCode_ok);
goto send_resp;
} else {
LOGPFSM(srvc->fi, "implicitly removing slotmap\n");
bankd_srvc_remove_mapping(map);
}
}
/* Add a new mapping */
map = slotmap_add(g_bankd->slotmaps, &bs, &cs);
if (!map) {
@ -184,6 +196,7 @@ static int bankd_srvc_handle_rx(struct rspro_server_conn *srvc, const RsproPDU_t
} else
resp = rspro_gen_CreateMappingRes(ResultCode_ok);
}
send_resp:
server_conn_send_rspro(srvc, resp);
break;
case RsproPDUchoice_PR_removeMappingReq: