diff options
Diffstat (limited to 'openbsc/src/nat')
| -rw-r--r-- | openbsc/src/nat/bsc_nat.c | 12 | ||||
| -rw-r--r-- | openbsc/src/nat/bsc_nat_utils.c | 7 |
2 files changed, 18 insertions, 1 deletions
diff --git a/openbsc/src/nat/bsc_nat.c b/openbsc/src/nat/bsc_nat.c index daabf0976..dcacfb9ab 100644 --- a/openbsc/src/nat/bsc_nat.c +++ b/openbsc/src/nat/bsc_nat.c @@ -858,6 +858,15 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg) /* hand data to a side channel */ if (bsc_check_ussd(con, parsed, msg) == 1) con->con_local = 2; + + /* + * Optionally rewrite setup message. This can + * replace the msg and the parsed structure becomes + * invalid. + */ + msg = bsc_nat_rewrite_setup(bsc->nat, msg, parsed); + talloc_free(parsed); + parsed = NULL; } con_bsc = con->bsc; @@ -913,7 +922,8 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg) /* send the non-filtered but maybe modified msg */ queue_for_msc(con_msc, msg); - talloc_free(parsed); + if (parsed) + talloc_free(parsed); return 0; exit: diff --git a/openbsc/src/nat/bsc_nat_utils.c b/openbsc/src/nat/bsc_nat_utils.c index 0cef01b24..a3fd97aaf 100644 --- a/openbsc/src/nat/bsc_nat_utils.c +++ b/openbsc/src/nat/bsc_nat_utils.c @@ -721,3 +721,10 @@ int bsc_write_cb(struct bsc_fd *bfd, struct msgb *msg) return rc; } +/** + * Rewrite non global numbers... according to rules based on the IMSI + */ +struct msgb *bsc_nat_rewrite_setup(struct bsc_nat *nat, struct msgb *msg, struct bsc_nat_parsed *pa) +{ + return msg; +} |