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osmo-msc
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ipa: Only use one IPA number for Osmo extensions 

Instead of using more numbers from the proto range we will
use the 0xee and then have a mini header with our new proto
id in there. For a start rename the use types to _OLD.
This commit is contained in:
Holger Hans Peter Freyther 2011-01-07 16:54:46 +01:00
parent 45c2184c7e
commit 368a0a73d4
7 changed files with 17 additions and 10 deletions
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11
openbsc/include/openbsc/ipaccess.h
View File

@ -14,14 +14,21 @@ struct ipaccess_head {
u_int8_t data[0];
} __attribute__ ((packed));
struct ipaccess_head_ext {
uint8_t proto;
uint8_t data[0];
} __attribute__ ((packed));
enum ipaccess_proto {
IPAC_PROTO_RSL = 0x00,
IPAC_PROTO_IPACCESS = 0xfe,
IPAC_PROTO_SCCP = 0xfd,
IPAC_PROTO_OML = 0xff,
/* OpenBSC extensions */
IPAC_PROTO_MGCP = 0xfc,
IPAC_PROTO_OSMO = 0xee,
IPAC_PROTO_MGCP_OLD = 0xfc,
};
enum ipaccess_msgtype {
@ -32,7 +39,7 @@ enum ipaccess_msgtype {
IPAC_MSGT_ID_ACK = 0x06,
/* OpenBSC extension */
IPAC_MSGT_SCCP_STATE = 0xff,
IPAC_MSGT_SCCP_OLD = 0xff,
};
enum ipaccess_id_tags {

4
openbsc/src/bsc/osmo_bsc_msc.c
View File

@ -67,7 +67,7 @@ static int mgcp_do_read(struct bsc_fd *fd)
}
mgcp->l2h = msgb_put(mgcp, ret);
msc_queue_write(data->msc_con, mgcp, IPAC_PROTO_MGCP);
msc_queue_write(data->msc_con, mgcp, IPAC_PROTO_MGCP_OLD);
return 0;
}
@ -223,7 +223,7 @@ static int ipaccess_a_fd_cb(struct bsc_fd *bfd)
}
} else if (hh->proto == IPAC_PROTO_SCCP) {
sccp_system_incoming(msg);
} else if (hh->proto == IPAC_PROTO_MGCP) {
} else if (hh->proto == IPAC_PROTO_MGCP_OLD) {
mgcp_forward(data, msg);
}

2
openbsc/src/nat/bsc_filter.c
View File

@ -69,7 +69,7 @@ static struct bsc_pkt_filter white_list[] = {
{ IPAC_PROTO_SCCP, ALLOW_ANY, ALLOW_ANY, ALLOW_ANY, FILTER_TO_BOTH },
/* allow MGCP messages to both sides */
{ IPAC_PROTO_MGCP, ALLOW_ANY, ALLOW_ANY, ALLOW_ANY, FILTER_TO_BOTH },
{ IPAC_PROTO_MGCP_OLD, ALLOW_ANY, ALLOW_ANY, ALLOW_ANY, FILTER_TO_BOTH },
};
struct bsc_nat_parsed *bsc_nat_parse(struct msgb *msg)

4
openbsc/src/nat/bsc_mgcp_utils.c
View File

@ -303,7 +303,7 @@ int bsc_mgcp_policy_cb(struct mgcp_config *cfg, int endpoint, int state, const c
}
/* send the message and a fake MDCX to force sending of a dummy packet */
bsc_write(sccp->bsc, bsc_msg, IPAC_PROTO_MGCP);
bsc_write(sccp->bsc, bsc_msg, IPAC_PROTO_MGCP_OLD);
bsc_mgcp_send_mdcx(sccp->bsc, sccp->bsc_endp, mgcp_endp);
return MGCP_POLICY_DEFER;
} else if (state == MGCP_ENDP_DLCX) {
@ -312,7 +312,7 @@ int bsc_mgcp_policy_cb(struct mgcp_config *cfg, int endpoint, int state, const c
bsc_mgcp_dlcx(sccp);
return MGCP_POLICY_CONT;
} else {
bsc_write(sccp->bsc, bsc_msg, IPAC_PROTO_MGCP);
bsc_write(sccp->bsc, bsc_msg, IPAC_PROTO_MGCP_OLD);
return MGCP_POLICY_DEFER;
}
}

2
openbsc/src/nat/bsc_nat.c
View File

@ -958,7 +958,7 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg)
goto exit2;
break;
}
} else if (parsed->ipa_proto == IPAC_PROTO_MGCP) {
} else if (parsed->ipa_proto == IPAC_PROTO_MGCP_OLD) {
bsc_mgcp_forward(bsc, msg);
goto exit2;
} else {

2
openbsc/src/nat/bsc_nat_utils.c
View File

@ -262,7 +262,7 @@ int bsc_write_mgcp(struct bsc_connection *bsc, const uint8_t *data, unsigned int
msg->l3h = msgb_put(msg, length);
memcpy(msg->l3h, data, length);
return bsc_write(bsc, msg, IPAC_PROTO_MGCP);
return bsc_write(bsc, msg, IPAC_PROTO_MGCP_OLD);
}
int bsc_write(struct bsc_connection *bsc, struct msgb *msg, int proto)

2
openbsc/src/nat/bsc_ussd.c
View File

@ -281,7 +281,7 @@ static int forward_ussd(struct sccp_connections *con, const struct ussd_request
memcpy(copy->l2h, input->l2h, msgb_l2len(input));
msg->l2h = msgb_put(msg, 1);
msg->l2h[0] = IPAC_MSGT_SCCP_STATE;
msg->l2h[0] = IPAC_MSGT_SCCP_OLD;
/* fill out the data */
state = (struct ipac_msgt_sccp_state *) msgb_put(msg, sizeof(*state));