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[nat] Do not forward messages from and to BSC when it is not authenticated 

* Start using the authenticated bit in the BSC connection. This means
  that currently no messages are forwarded to the MSC from unauthenticated
  BSCs.
This commit is contained in:
Holger Hans Peter Freyther 2010-02-08 23:24:32 +01:00
parent 6b8763ed9a
commit 3f37b8fba3
1 changed files with 13 additions and 0 deletions
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13
openbsc/src/nat/bsc_nat.c
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@ -308,11 +308,19 @@ static int forward_sccp_to_bts(struct msgb *msg)
talloc_free(parsed);
if (!bsc)
return -1;
if (!bsc->authenticated) {
LOGP(DNAT, LOGL_ERRO, "Selected BSC not authenticated.\n");
return -1;
}
return write(bsc->bsc_fd.fd, msg->data, msg->len);
send_to_all:
/* currently send this to every BSC connected */
llist_for_each_entry(bsc, &nat->bsc_connections, list_entry) {
if (!bsc->authenticated)
continue;
rc = write(bsc->bsc_fd.fd, msg->data, msg->len);
/* try the next one */
@ -436,6 +444,11 @@ static int forward_sccp_to_msc(struct bsc_fd *bfd, struct msgb *msg)
goto exit2;
}
if (!bsc->authenticated) {
LOGP(DNAT, LOGL_ERROR, "BSC is not authenticated.\n");
goto exit2;
}
/* send the non-filtered but maybe modified msg */
rc = write(msc_connection.fd, msg->data, msg->len);
talloc_free(parsed);