diff options
| author | Sylvain Munaut <tnt@246tNt.com> | 2009-12-24 00:28:46 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2010-06-14 20:43:52 +0200 |
| commit | ba87f458ec744e97b4456832ec37f612bd513508 (patch) | |
| tree | 8f9b7d63d3479fd001df929f115e04f8f4bf914e /openbsc/src/gsm_04_08.c | |
| parent | 267fba0a2b6ea1e660fb8f25953ec640b290580b (diff) | |
gsm_04_08: Establish secure channel on CM SERVICE REQUEST
Note that establishing a secure channel is considered to
be an implicit CM SERVICE ACK.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Diffstat (limited to 'openbsc/src/gsm_04_08.c')
| -rw-r--r-- | openbsc/src/gsm_04_08.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/openbsc/src/gsm_04_08.c b/openbsc/src/gsm_04_08.c index 1db89c964..562c24d43 100644 --- a/openbsc/src/gsm_04_08.c +++ b/openbsc/src/gsm_04_08.c @@ -706,6 +706,34 @@ static int gsm48_tx_mm_serv_rej(struct gsm_subscriber_connection *conn, return gsm48_sendmsg(msg, NULL); } +static int _gsm48_rx_mm_serv_req_sec_cb( + unsigned int hooknum, unsigned int event, + struct msgb *msg, void *data, void *param) +{ + struct gsm_lchan *lchan = data; + int rc = 0; + + switch (event) { + case GSM_SECURITY_AUTH_FAILED: + /* Nothing to do */ + break; + + case GSM_SECURITY_NOAVAIL: + rc = gsm48_tx_mm_serv_ack(lchan); + break; + + case GSM_SECURITY_SUCCEEDED: + /* nothing to do. CIPHER MODE COMMAND is + * implicit CM SERV ACK */ + break; + + default: + rc = -EINVAL; + }; + + return rc; +} + /* * Handle CM Service Requests * a) Verify that the packet is long enough to contain the information @@ -781,7 +809,8 @@ static int gsm48_rx_mm_serv_req(struct msgb *msg) memcpy(subscr->equipment.classmark2, classmark2, classmark2_len); db_sync_equipment(&subscr->equipment); - return gsm48_tx_mm_serv_ack(msg->lchan); + return gsm48_secure_channel(msg->lchan, req->cipher_key_seq, + _gsm48_rx_mm_serv_req_sec_cb, NULL); } static int gsm48_rx_mm_imsi_detach_ind(struct msgb *msg) |