libmsc: update database to accomodate SMS status-report fields
SMPP DELIVER_SM messages with esm_class = Delivery Receipt need to send this message reference (that the mobile phone allocates) to the ESME. Thus, the ESME propagates it via SUBMIT_SM with esm_class = Delivery Acknoledgment so that the SMSC sends the GSM 03.40 status-report to the origin including this. Given this field is useful for status-reports, we need to store it in the HLR database. Moreover, we need a new field that specifies if the entry represents a SMS status-report, to do the right handling from the gsm411_send_sms() - such new handling comes in a follow up patch entitled "libmsc: handle delivery ack via SMPP SUBMIT SM / send GSM 03.40 status report". This patch includes the migration routines to the new database schema revision 5, it's quite a bit of dbi boilerplate code - copied-pasted and adapted. Change-Id: I7276d356d805a83ebeec72b02c8563b7135ea0b6
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168
src/libmsc/db.c
168
src/libmsc/db.c
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@ -48,7 +48,7 @@ static char *db_basename = NULL;
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static char *db_dirname = NULL;
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static dbi_conn conn;
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#define SCHEMA_REVISION "4"
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#define SCHEMA_REVISION "5"
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enum {
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SCHEMA_META,
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@ -122,6 +122,8 @@ static const char *create_stmts[] = {
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"valid_until TIMESTAMP, "
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"reply_path_req INTEGER NOT NULL, "
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"status_rep_req INTEGER NOT NULL, "
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"is_report INTEGER NOT NULL, "
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"msg_ref INTEGER NOT NULL, "
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"protocol_id INTEGER NOT NULL, "
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"data_coding_scheme INTEGER NOT NULL, "
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"ud_hdr_ind INTEGER NOT NULL, "
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@ -378,6 +380,152 @@ rollback:
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return -EINVAL;
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}
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/* Just like v3, but there is a new message reference field for status reports,
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* that is set to zero for existing entries since there is no way we can infer
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* this.
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*/
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static struct gsm_sms *sms_from_result_v4(dbi_result result)
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{
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struct gsm_sms *sms = sms_alloc();
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const unsigned char *user_data;
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const char *text, *addr;
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if (!sms)
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return NULL;
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sms->id = dbi_result_get_ulonglong(result, "id");
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sms->reply_path_req = dbi_result_get_ulonglong(result, "reply_path_req");
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sms->status_rep_req = dbi_result_get_ulonglong(result, "status_rep_req");
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sms->ud_hdr_ind = dbi_result_get_ulonglong(result, "ud_hdr_ind");
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sms->protocol_id = dbi_result_get_ulonglong(result, "protocol_id");
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sms->data_coding_scheme = dbi_result_get_ulonglong(result,
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"data_coding_scheme");
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addr = dbi_result_get_string(result, "src_addr");
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osmo_strlcpy(sms->src.addr, addr, sizeof(sms->src.addr));
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sms->src.ton = dbi_result_get_ulonglong(result, "src_ton");
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sms->src.npi = dbi_result_get_ulonglong(result, "src_npi");
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addr = dbi_result_get_string(result, "dest_addr");
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osmo_strlcpy(sms->dst.addr, addr, sizeof(sms->dst.addr));
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sms->dst.ton = dbi_result_get_ulonglong(result, "dest_ton");
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sms->dst.npi = dbi_result_get_ulonglong(result, "dest_npi");
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sms->user_data_len = dbi_result_get_field_length(result, "user_data");
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user_data = dbi_result_get_binary(result, "user_data");
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if (sms->user_data_len > sizeof(sms->user_data))
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sms->user_data_len = (uint8_t) sizeof(sms->user_data);
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memcpy(sms->user_data, user_data, sms->user_data_len);
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text = dbi_result_get_string(result, "text");
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if (text)
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osmo_strlcpy(sms->text, text, sizeof(sms->text));
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return sms;
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}
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static int update_db_revision_4(void)
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{
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dbi_result result;
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struct gsm_sms *sms;
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LOGP(DDB, LOGL_NOTICE, "Going to migrate from revision 4\n");
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result = dbi_conn_query(conn, "BEGIN EXCLUSIVE TRANSACTION");
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if (!result) {
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LOGP(DDB, LOGL_ERROR,
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"Failed to begin transaction (upgrade from rev 4)\n");
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return -EINVAL;
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}
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dbi_result_free(result);
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/* Rename old SMS table to be able create a new one */
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result = dbi_conn_query(conn, "ALTER TABLE SMS RENAME TO SMS_4");
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if (!result) {
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LOGP(DDB, LOGL_ERROR,
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"Failed to rename the old SMS table (upgrade from rev 4).\n");
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goto rollback;
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}
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dbi_result_free(result);
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/* Create new SMS table with all the bells and whistles! */
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result = dbi_conn_query(conn, create_stmts[SCHEMA_SMS]);
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if (!result) {
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LOGP(DDB, LOGL_ERROR,
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"Failed to create a new SMS table (upgrade from rev 4).\n");
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goto rollback;
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}
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dbi_result_free(result);
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/* Cycle through old messages and convert them to the new format */
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result = dbi_conn_query(conn, "SELECT * FROM SMS_4");
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if (!result) {
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LOGP(DDB, LOGL_ERROR,
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"Failed fetch messages from the old SMS table (upgrade from rev 4).\n");
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goto rollback;
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}
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while (dbi_result_next_row(result)) {
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sms = sms_from_result_v4(result);
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if (db_sms_store(sms) != 0) {
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LOGP(DDB, LOGL_ERROR, "Failed to store message to the new SMS table(upgrade from rev 4).\n");
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sms_free(sms);
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dbi_result_free(result);
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goto rollback;
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}
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sms_free(sms);
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}
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dbi_result_free(result);
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/* Remove the temporary table */
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result = dbi_conn_query(conn, "DROP TABLE SMS_4");
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if (!result) {
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LOGP(DDB, LOGL_ERROR,
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"Failed to drop the old SMS table (upgrade from rev 4).\n");
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goto rollback;
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}
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dbi_result_free(result);
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/* We're done. Bump DB Meta revision to 4 */
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result = dbi_conn_query(conn,
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"UPDATE Meta "
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"SET value = '5' "
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"WHERE key = 'revision'");
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if (!result) {
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LOGP(DDB, LOGL_ERROR,
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"Failed to update DB schema revision (upgrade from rev 4).\n");
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goto rollback;
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}
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dbi_result_free(result);
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result = dbi_conn_query(conn, "COMMIT TRANSACTION");
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if (!result) {
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LOGP(DDB, LOGL_ERROR,
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"Failed to commit the transaction (upgrade from rev 4)\n");
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return -EINVAL;
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} else {
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dbi_result_free(result);
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}
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/* Shrink DB file size by actually wiping out SMS_4 table data */
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result = dbi_conn_query(conn, "VACUUM");
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if (!result)
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LOGP(DDB, LOGL_ERROR,
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"VACUUM failed. Ignoring it (upgrade from rev 4).\n");
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else
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dbi_result_free(result);
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return 0;
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rollback:
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result = dbi_conn_query(conn, "ROLLBACK TRANSACTION");
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if (!result)
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LOGP(DDB, LOGL_ERROR,
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"Rollback failed (upgrade from rev 4).\n");
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else
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dbi_result_free(result);
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return -EINVAL;
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}
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static int check_db_revision(void)
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{
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dbi_result result;
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@ -421,6 +569,9 @@ static int check_db_revision(void)
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case 3:
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if (update_db_revision_3())
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goto error;
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case 4:
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if (update_db_revision_4())
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goto error;
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/* The end of waterfall */
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break;
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@ -546,20 +697,23 @@ int db_sms_store(struct gsm_sms *sms)
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result = dbi_conn_queryf(conn,
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"INSERT INTO SMS "
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"(created, valid_until, "
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"reply_path_req, status_rep_req, protocol_id, "
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"data_coding_scheme, ud_hdr_ind, "
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"reply_path_req, status_rep_req, is_report, "
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"msg_ref, protocol_id, data_coding_scheme, "
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"ud_hdr_ind, "
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"user_data, text, "
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"dest_addr, dest_ton, dest_npi, "
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"src_addr, src_ton, src_npi) VALUES "
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"(datetime('now'), %u, "
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"%u, %u, %u, "
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"%u, %u, "
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"%u, %u, %u, "
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"%u, "
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"%s, %s, "
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"%s, %u, %u, "
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"%s, %u, %u)",
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validity_timestamp,
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sms->reply_path_req, sms->status_rep_req, sms->protocol_id,
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sms->data_coding_scheme, sms->ud_hdr_ind,
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sms->reply_path_req, sms->status_rep_req, sms->is_report,
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sms->msg_ref, sms->protocol_id, sms->data_coding_scheme,
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sms->ud_hdr_ind,
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q_udata, q_text,
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q_daddr, sms->dst.ton, sms->dst.npi,
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q_saddr, sms->src.ton, sms->src.npi);
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@ -590,6 +744,8 @@ static struct gsm_sms *sms_from_result(struct gsm_network *net, dbi_result resul
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/* FIXME: those should all be get_uchar, but sqlite3 is braindead */
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sms->reply_path_req = dbi_result_get_ulonglong(result, "reply_path_req");
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sms->status_rep_req = dbi_result_get_ulonglong(result, "status_rep_req");
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sms->is_report = dbi_result_get_ulonglong(result, "is_report");
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sms->msg_ref = dbi_result_get_ulonglong(result, "msg_ref");
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sms->ud_hdr_ind = dbi_result_get_ulonglong(result, "ud_hdr_ind");
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sms->protocol_id = dbi_result_get_ulonglong(result, "protocol_id");
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sms->data_coding_scheme = dbi_result_get_ulonglong(result,
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@ -1,2 +1,3 @@
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Going to migrate from revision 3
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[0;mGoing to migrate from revision 4
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[0;m
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