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gsm0480: Attempt to encode a NotifySS-Arg with a username..

This commit is contained in:
Holger Hans Peter Freyther 2010-07-25 18:08:53 +08:00
parent fa530cd6d8
commit 680833e2ba
2 changed files with 66 additions and 1 deletions
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2
openbsc/include/openbsc/gsm_04_80.h
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@ -23,4 +23,6 @@ int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn,
const struct msgb *msg,
const struct ussd_request *request);
struct msgb * gsm0480_create_notifySS(const char *text);
#endif

65
openbsc/src/gsm_04_80.c
View File

@ -2,7 +2,7 @@
* 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0 */
/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
* (C) 2008, 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2008, 2009, 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009 by Mike Haben <michael.haben@btinternet.com>
*
* All Rights Reserved
@ -245,6 +245,69 @@ static int parse_process_uss_req(u_int8_t *uss_req_data, u_int8_t length,
return rc;
}
struct msgb *gsm0480_create_notifySS(const char *text)
{
struct msgb *msg;
uint8_t *data, *tmp_len;
uint8_t *seq_len_ptr, *cal_len_ptr, *opt_len_ptr, *nam_len_ptr;
int len;
len = strlen(text);
if (len < 1 || len > 160)
return NULL;
msg = gsm48_msgb_alloc();
if (!msg)
return NULL;
msgb_put_u8(msg, GSM_0480_SEQUENCE_TAG);
seq_len_ptr = msgb_put(msg, 1);
/* nameIndicator { */
msgb_put_u8(msg, 0xB4);
nam_len_ptr = msgb_put(msg, 1);
/* callingName { */
msgb_put_u8(msg, 0xA0);
opt_len_ptr = msgb_put(msg, 1);
msgb_put_u8(msg, 0xA0);
cal_len_ptr = msgb_put(msg, 1);
/* namePresentationAllowed { */
/* add the DCS value */
msgb_put_u8(msg, 0x80);
msgb_put_u8(msg, 1);
msgb_put_u8(msg, 0x0F);
/* add the lengthInCharacters */
msgb_put_u8(msg, 0x81);
msgb_put_u8(msg, 1);
msgb_put_u8(msg, strlen(text));
/* add the actual string */
msgb_put_u8(msg, 0x82);
tmp_len = msgb_put(msg, 1);
data = msgb_put(msg, 0);
len = gsm_7bit_encode(data, text);
tmp_len[0] = len;
msgb_put(msg, len);
/* }; namePresentationAllowed */
cal_len_ptr[0] = 3 + 3 + 2 + len;
opt_len_ptr[0] = cal_len_ptr[0] + 2;
/* }; callingName */
nam_len_ptr[0] = opt_len_ptr[0] + 2;
/* ); nameIndicator */
/* write the lengths... */
seq_len_ptr[0] = nam_len_ptr[0] + 2;
return msg;
}
/* Send response to a mobile-originated ProcessUnstructuredSS-Request */
int gsm0480_send_ussd_response(struct gsm_subscriber_connection *conn,
const struct msgb *in_msg, const char *response_text,