Store incoming SMS into SQL database

* gsm_util now uses caller-allocated data (rather than callee-allocated)
* correctly parse destination address
* parse (but not transcode) non-default encodings of SMS
* reject SMS to unknown destination number
* resolve target subscriber id and store incoming SMS (without header) in 'sms' table

What we're now missing is the sending part, i.e. a regular task iterating over
all pending SMS and trying to deliver them.  Also, check for pending SMS once
we get a LOCATION UPDATE.

1 files changed, 11 insertions, 0 deletions

diff --git a/include/openbsc/gsm_data.h b/include/openbsc/gsm_data.h
index 84d33d2c4..614c63d17 100644
--- a/include/openbsc/gsm_data.h
+++ b/include/openbsc/gsm_data.h
@@ -317,6 +317,17 @@ struct gsm_network {
 	struct gsm_bts	bts[GSM_MAX_BTS+1];
 };
 
+#define SMS_HDR_SIZE	128
+#define SMS_TEXT_SIZE	256
+struct gsm_sms {
+	u_int64_t id;
+	struct gsm_subscriber *sender;
+	struct gsm_subscriber *receiver;
+
+	unsigned char header[SMS_HDR_SIZE];
+	char text[SMS_TEXT_SIZE];
+};
+
 struct gsm_network *gsm_network_init(unsigned int num_bts, enum gsm_bts_type bts_type,
 				     u_int16_t country_code, u_int16_t network_code);