DeforaNetworks/siproxd
DeforaNetworks/siproxd
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This commit is contained in:
Thomas Ries 2017-08-12 15:06:52 +00:00
parent 935f77abd1
commit 29963fa4fb
3 changed files with 72 additions and 13 deletions
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1
ChangeLog
View File

@ -1,5 +1,6 @@
0.8.3dev
========
12-Aug-2017: - performance and code inprovements in plugin_blacklist
28-May-2017: - updated autogen/automake/libtool/libltdl to a recent
version. Personal note: libtool/libltr is a steaming
pile of fertilizer - a voodoo driven toolbox

4
doc/siproxd.conf.example
View File

@ -537,7 +537,7 @@ plugin_fix_fbox_anoncall_networks = 192.168.0.0/16,10.0.0.0/8,172.16.0.0/20
# this period).
#
# ...dbpath: path where the database is located
# ...mode: 0: no block, 1: IP based, 2: IP and SIP-user based
# ...db_sync_mode: SQLite "PRAGMA SYNCHRONOUS" setting (OFF|NORMAL|FULL)
# ...simulate: 0: block UACs once the failure count limit has been reached
# 1: simulate, only log but don't block
# ...duration: block duration in seconds, 0: forever
@ -547,7 +547,7 @@ plugin_fix_fbox_anoncall_networks = 192.168.0.0/16,10.0.0.0/8,172.16.0.0/20
# ignored for blacklisting
#
plugin_blacklist_dbpath = /var/lib/siproxd/blacklist.sqlite
//plugin_blacklist_mode = 0
#plugin_blacklist_db_sync_mode = OFF
plugin_blacklist_simulate = 0
plugin_blacklist_duration = 3600
plugin_blacklist_hitcount = 10

80
src/plugin_blacklist.c
View File

@ -57,6 +57,7 @@ extern struct siproxd_config configuration;
/* plugin configuration storage */
static struct plugin_config {
char *dbpath; /* path to sqlite DB file (/var/lib/siproxd/bl.db */
char *db_sync_mode; /* SQListe synchronous mode (FULL(def), NORMAL, OFF) */
// int block_mode; /* 0: no, 1: IP based, 2: IP & SIP-user */
int simulate; /* 0: no, 1: don't block, just log */
int duration; /* in seconds, 0: forever, dont' expire */
@ -67,6 +68,7 @@ static struct plugin_config {
/* Instructions for config parser */
static cfgopts_t plugin_cfg_opts[] = {
{ "plugin_blacklist_dbpath", TYP_STRING, &plugin_cfg.dbpath, {0, "/var/lib/siproxd/blacklist.sqlite"} },
{ "plugin_blacklist_db_sync_mode", TYP_STRING, &plugin_cfg.db_sync_mode, {0, "OFF"} },
// { "plugin_blacklist_mode", TYP_INT4, &plugin_cfg.block_mode, {2, NULL} },
{ "plugin_blacklist_simulate", TYP_INT4, &plugin_cfg.simulate, {0, NULL} },
{ "plugin_blacklist_duration", TYP_INT4, &plugin_cfg.duration, {3600, NULL} },
@ -175,6 +177,9 @@ static int sqlite_begin(void);
static int sqlite_end(void);
static int sqlite_exec_stmt_none(sql_statement_t *sql_statement);
static int sqlite_exec_stmt_int(sql_statement_t *sql_statement, int *retval);
static int sqlite_begin_transaction(void);
static int sqlite_end_transaction(void);
/*
* Initialization.
@ -294,6 +299,8 @@ static int blacklist_check(sip_ticket_t *ticket) {
DEBUGC(DBCLASS_BABBLE,"checking user %s from IP %s (Call-Id=[%s])",from, srcip, call_id);
sqlite_begin_transaction();
/* Query 1: SELECT for blacklisted entries */
/* bind */
sql_stmt = &sql_statement[SQL_CHECK_1];
@ -364,6 +371,8 @@ static int blacklist_check(sip_ticket_t *ticket) {
sql_stmt = NULL;
}
sqlite_end_transaction();
// not present in sqlite 3.3.6 sts = sqlite3_clear_bindings(stmt1);
if ((retval > 0) && (plugin_cfg.simulate==0)) {
@ -395,16 +404,6 @@ static int blacklist_update(sip_ticket_t *ticket) {
DEBUGC(DBCLASS_BABBLE, "entering blacklist_update");
/* Query 1: remove old records (> register_window seconds) */
/* bind */
sql_stmt = &sql_statement[SQL_UPDATE_1];
sts = sqlite3_bind_int(sql_stmt->stmt, 001, ticket->timestamp - plugin_cfg.register_window);
if( sts != SQLITE_OK ){ WARN("sqlite3_bind_int failed with %i", sts); }
/* execute & eval result */
sts = sqlite_exec_stmt_none(sql_stmt);
if( sts != STS_SUCCESS ){ WARN("sqlite_exec_stmt_none failed with %i", sts); }
sql_stmt = NULL;
/* get target IP address as string */
dstip=utils_inet_ntoa(ticket->next_hop.sin_addr);
@ -420,6 +419,18 @@ static int blacklist_update(sip_ticket_t *ticket) {
DEBUGC(DBCLASS_BABBLE,"checking user %s at IP %s (Call-Id=[%s])",from, dstip, call_id);
sqlite_begin_transaction();
/* Query 1: remove old records (> register_window seconds) */
/* bind */
sql_stmt = &sql_statement[SQL_UPDATE_1];
sts = sqlite3_bind_int(sql_stmt->stmt, 001, ticket->timestamp - plugin_cfg.register_window);
if( sts != SQLITE_OK ){ WARN("sqlite3_bind_int failed with %i", sts); }
/* execute & eval result */
sts = sqlite_exec_stmt_none(sql_stmt);
if( sts != STS_SUCCESS ){ WARN("sqlite_exec_stmt_none failed with %i", sts); }
sql_stmt = NULL;
/* Query 2: check if this REGISTER response has a known record in the requests table */
/* bind */
sql_stmt = &sql_statement[SQL_UPDATE_2];
@ -484,6 +495,8 @@ static int blacklist_update(sip_ticket_t *ticket) {
} /* if Q2 true */
sqlite_end_transaction();
/* free resources */
osip_free(from);
@ -504,6 +517,8 @@ static int blacklist_expire(sip_ticket_t *ticket) {
/* set failcount=0 for all records where last_seen is older than block_period */
/* or remove records */
sqlite_begin_transaction();
/* expire old blacklist records (if config.duration > 0)*/
if (plugin_cfg.duration > 0) {
/* Query7 */
@ -531,6 +546,7 @@ static int blacklist_expire(sip_ticket_t *ticket) {
if( sts != STS_SUCCESS ){ WARN("sqlite_exec_stmt_int failed with %i", sts); }
sql_stmt = NULL;
sqlite_end_transaction();
DEBUGC(DBCLASS_BABBLE, "leaving blacklist_expire");
return STS_SUCCESS;
@ -543,6 +559,8 @@ static int sqlite_begin(void){
int sts;
int i;
char *zErrMsg = NULL;
char sql[64];
/* open the database */
sts = sqlite3_open(plugin_cfg.dbpath, &db);
@ -561,7 +579,18 @@ static int sqlite_begin(void){
return STS_FAILURE;
}
/* write check (DB update) */
/* switch to nosync mode (async r/w) */
strcpy(sql, "PRAGMA synchronous = ");
strcat(sql, plugin_cfg.db_sync_mode);
sts = sqlite3_exec(db, sql, NULL, 0, &zErrMsg);
if( sts != SQLITE_OK ){
ERROR( "SQL exec error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
sqlite3_close(db);
return STS_FAILURE;
}
/* perform write check (DB update) */
#define DB_SQL_STARTUP \
"INSERT OR IGNORE INTO control (action, count) VALUES ('bl_started', 0); "\
"UPDATE control set count = count + 1, time = datetime('now') where action ='bl_started';"
@ -624,6 +653,35 @@ static int sqlite_end(void){
return STS_SUCCESS;
}
static int sqlite_begin_transaction(void){
int sts;
char *zErrMsg = NULL;
DEBUGC(DBCLASS_BABBLE, "SQLite: begin transaction");
sts = sqlite3_exec(db, "BEGIN TRANSACTION", NULL, 0, &zErrMsg);
if( sts != SQLITE_OK ){
ERROR( "SQL exec error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
}
return STS_SUCCESS;
}
static int sqlite_end_transaction(void){
int sts;
char *zErrMsg = NULL;
DEBUGC(DBCLASS_BABBLE, "SQLite: end transaction - begin");
sts = sqlite3_exec(db, "END TRANSACTION", NULL, 0, &zErrMsg);
if( sts != SQLITE_OK ){
ERROR( "SQL exec error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
}
DEBUGC(DBCLASS_BABBLE, "SQLite: end transaction - done");
return STS_SUCCESS;
}
static int sqlite_exec_stmt_none(sql_statement_t *sql_statement){
int sts;