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siptrace.c
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siptrace.c
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/*
* siptrace module - helper module to trace sip messages
*
* Copyright (C) 2006 Voice Sistem S.R.L.
* Copyright (C) 2009 Daniel-Constantin Mierla (asipto.com)
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* Kamailio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/*! \file
* siptrace module - helper module to trace sip messages
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "../../core/sr_module.h"
#include "../../core/mod_fix.h"
#include "../../core/dprint.h"
#include "../../core/ut.h"
#include "../../core/ip_addr.h"
#include "../../core/mem/mem.h"
#include "../../core/mem/shm_mem.h"
#include "../../core/rpc.h"
#include "../../core/rpc_lookup.h"
#include "../../lib/srdb1/db.h"
#include "../../core/parser/parse_content.h"
#include "../../core/parser/parse_from.h"
#include "../../core/parser/parse_cseq.h"
#include "../../core/pvar.h"
#include "../../modules/tm/tm_load.h"
#include "../../modules/sl/sl.h"
#include "../../modules/dialog/dlg_load.h"
#include "../../core/str.h"
#include "../../core/onsend.h"
#include "../../core/events.h"
#include "../../core/kemi.h"
#include "siptrace_data.h"
#include "siptrace_hep.h"
#include "siptrace_send.h"
MODULE_VERSION
#define SIPTRACE_ANYADDR "any:255.255.255.255:5060"
#define SIPTRACE_ANYADDR_LEN (sizeof(SIPTRACE_ANYADDR) - 1)
#define trace_is_off(_msg) \
((((_msg)->msg_flags & FL_SIPTRACE) == 0) \
|| ((trace_flag != 0) && (_msg->flags & trace_flag) == 0))
#define is_null_pv(_str) \
(!str_strcmp(&_str, pv_get_null_str()))
struct tm_binds tmb;
struct dlg_binds dlgb;
/** SL API structure */
sl_api_t slb;
/* module function prototypes */
static int mod_init(void);
static int siptrace_init_rpc(void);
static int child_init(int rank);
static void destroy(void);
static int sip_trace(sip_msg_t *msg, dest_info_t *, str *, char *);
static int w_sip_trace0(struct sip_msg *, char *p1, char *p2);
static int w_sip_trace1(struct sip_msg *, char *dest, char *p2);
static int w_sip_trace2(struct sip_msg *, char *dest, char *correlation_id);
static int w_sip_trace3(struct sip_msg *, char *dest, char *correlation_id, char *trace_type);
static int fixup_siptrace(void **param, int param_no);
static int w_sip_trace_mode(sip_msg_t *msg, char *pmode, char *p2);
static int parse_siptrace_uri(str* duri, dest_info_t* dst);
static enum siptrace_type_t parse_siptrace_flag(str* sflags);
static int w_hlog1(struct sip_msg *, char *message, char *);
static int w_hlog2(struct sip_msg *, char *correlationid, char *message);
static int sip_trace_store_db(siptrace_data_t *sto);
static void trace_onreq_out(struct cell *t, int type, struct tmcb_params *ps);
static void trace_onreply_in(struct cell *t, int type, struct tmcb_params *ps);
static void trace_onreply_out(struct cell *t, int type, struct tmcb_params *ps);
static void trace_tm_neg_ack_in(struct cell *t, int type, struct tmcb_params *ps);
static void trace_sl_onreply_out(sl_cbp_t *slcb);
static void trace_sl_ack_in(sl_cbp_t *slcb);
static void trace_transaction(sip_msg_t* msg, siptrace_info_t* info, int dlg_tran);
static void trace_dialog(struct dlg_cell* dlg, int type, struct dlg_cb_params *params);
static void trace_dialog_transaction(struct dlg_cell* dlg, int type, struct dlg_cb_params *params);
static void free_trace_info(void* trace_info);
static int add_info_xavp(siptrace_info_t* info);
static inline int parse_raw_uri(siptrace_info_t* info);
int siptrace_net_data_recv(sr_event_param_t *evp);
int siptrace_net_data_send(sr_event_param_t *evp);
static int _siptrace_mode = 0;
static str db_url = str_init(DEFAULT_DB_URL);
static str siptrace_table = str_init("sip_trace");
static str date_column = str_init("time_stamp"); /* 00 */
static str callid_column = str_init("callid"); /* 01 */
static str traced_user_column = str_init("traced_user"); /* 02 */
static str msg_column = str_init("msg"); /* 03 */
static str method_column = str_init("method"); /* 04 */
static str status_column = str_init("status"); /* 05 */
static str fromip_column = str_init("fromip"); /* 06 */
static str toip_column = str_init("toip"); /* 07 */
static str fromtag_column = str_init("fromtag"); /* 08 */
static str direction_column = str_init("direction"); /* 09 */
static str time_us_column = str_init("time_us"); /* 10 */
static str totag_column = str_init("totag"); /* 11 */
#define XAVP_TRACE_INFO_NAME "trace_info"
static str xavp_trace_info_name_s = str_init(XAVP_TRACE_INFO_NAME);
#define NR_KEYS 12
#define SIP_TRACE_TABLE_VERSION 4
int trace_flag_param = -1;
int trace_flag = 0;
int trace_on = 0;
int trace_sl_acks = 1;
int trace_to_database = 1;
int trace_delayed = 0;
int hep_version = 1;
int hep_capture_id = 1;
int hep_vendor_id = 0;
str auth_key_str = {0, 0};
int xheaders_write = 0;
int xheaders_read = 0;
str force_send_sock_str = {0, 0};
struct sip_uri *force_send_sock_uri = 0;
str dup_uri_str = {0, 0};
struct sip_uri *dup_uri = 0;
int *trace_on_flag = NULL;
int *trace_to_database_flag = NULL;
int *xheaders_write_flag = NULL;
int *xheaders_read_flag = NULL;
static unsigned short traced_user_avp_type = 0;
static int_str traced_user_avp;
static str traced_user_avp_str = {NULL, 0};
static unsigned short trace_table_avp_type = 0;
static int_str trace_table_avp;
static str trace_table_avp_str = {NULL, 0};
static str trace_local_ip = {NULL, 0};
int hep_mode_on = 0;
db1_con_t *db_con = NULL; /*!< database connection */
db_func_t db_funcs; /*!< Database functions */
/*! \brief
* Exported functions
*/
static cmd_export_t cmds[] = {
{"sip_trace", (cmd_function)w_sip_trace0, 0, 0, 0,
ANY_ROUTE},
{"sip_trace", (cmd_function)w_sip_trace1, 1, fixup_siptrace, 0,
ANY_ROUTE},
{"sip_trace", (cmd_function)w_sip_trace2, 2, fixup_siptrace, 0,
ANY_ROUTE},
{"sip_trace", (cmd_function)w_sip_trace3, 3, fixup_siptrace, 0,
ANY_ROUTE},
{"hlog", (cmd_function)w_hlog1, 1, fixup_spve_null, 0,
ANY_ROUTE},
{"hlog", (cmd_function)w_hlog2, 2, fixup_spve_spve, 0,
ANY_ROUTE},
{"sip_trace_mode", (cmd_function)w_sip_trace_mode, 1, fixup_spve_null,
fixup_free_spve_null, ANY_ROUTE},
{0, 0, 0, 0, 0, 0}
};
/*! \brief
* Exported parameters
*/
static param_export_t params[] = {
{"auth_key", PARAM_STR, &auth_key_str},
{"db_url", PARAM_STR, &db_url}, {"table", PARAM_STR, &siptrace_table},
{"date_column", PARAM_STR, &date_column},
{"callid_column", PARAM_STR, &callid_column},
{"traced_user_column", PARAM_STR, &traced_user_column},
{"msg_column", PARAM_STR, &msg_column},
{"method_column", PARAM_STR, &method_column},
{"status_column", PARAM_STR, &status_column},
{"fromip_column", PARAM_STR, &fromip_column},
{"toip_column", PARAM_STR, &toip_column},
{"fromtag_column", PARAM_STR, &fromtag_column},
{"totag_column", PARAM_STR, &totag_column},
{"direction_column", PARAM_STR, &direction_column},
{"trace_flag", INT_PARAM, &trace_flag_param},
{"trace_on", INT_PARAM, &trace_on},
{"traced_user_avp", PARAM_STR, &traced_user_avp_str},
{"trace_table_avp", PARAM_STR, &trace_table_avp_str},
{"duplicate_uri", PARAM_STR, &dup_uri_str},
{"trace_to_database", INT_PARAM, &trace_to_database},
{"trace_local_ip", PARAM_STR, &trace_local_ip},
{"trace_sl_acks", INT_PARAM, &trace_sl_acks},
{"xheaders_write", INT_PARAM, &xheaders_write},
{"xheaders_read", INT_PARAM, &xheaders_read},
{"hep_mode_on", INT_PARAM, &hep_mode_on},
{"force_send_sock", PARAM_STR, &force_send_sock_str},
{"hep_version", INT_PARAM, &hep_version},
{"hep_capture_id", INT_PARAM, &hep_capture_id},
{"trace_delayed", INT_PARAM, &trace_delayed},
{"trace_mode", PARAM_INT, &_siptrace_mode}, {0, 0, 0}
};
#ifdef STATISTICS
stat_var *siptrace_req;
stat_var *siptrace_rpl;
stat_export_t siptrace_stats[] = {
{"traced_requests", 0, &siptrace_req},
{"traced_replies", 0, &siptrace_rpl}, {0, 0, 0}
};
#endif
/*! \brief module exports */
struct module_exports exports = {
"siptrace", /*!< module name */
DEFAULT_DLFLAGS, /*!< dlopen flags */
cmds, /*!< exported functions */
params, /*!< exported parameters */
0, /*!< exported rpc functions */
0, /*!< exported pseudo-variables */
0, /*!< response function */
mod_init, /*!< module initialization function */
child_init, /*!< child initialization function */
destroy /*!< destroy function */
};
/*! \brief Initialize siptrace module */
static int mod_init(void)
{
pv_spec_t avp_spec;
sl_cbelem_t slcb;
#ifdef STATISTICS
/* register statistics */
if(register_module_stats(exports.name, siptrace_stats) != 0) {
LM_ERR("failed to register core statistics\n");
return -1;
}
#endif
if(siptrace_init_rpc() != 0) {
LM_ERR("failed to register RPC commands\n");
return -1;
}
if(trace_flag_param!=-1) {
if(trace_flag_param < -1 || trace_flag_param > (int)MAX_FLAG) {
LM_ERR("invalid trace flag %d\n", trace_flag_param);
return -1;
}
trace_flag = 1 << trace_flag_param;
}
trace_to_database_flag = (int *)shm_malloc(sizeof(int));
if(trace_to_database_flag == NULL) {
LM_ERR("no more shm memory left\n");
return -1;
}
*trace_to_database_flag = trace_to_database;
if(hep_version != 1 && hep_version != 2 && hep_version != 3) {
LM_ERR("unsupported version of HEP");
return -1;
}
/* Find a database module if needed */
if(trace_to_database_flag != NULL && *trace_to_database_flag != 0) {
if(db_bind_mod(&db_url, &db_funcs)) {
LM_ERR("unable to bind database module\n");
return -1;
}
if(trace_to_database_flag && !DB_CAPABILITY(db_funcs, DB_CAP_INSERT)) {
LM_ERR("database modules does not provide all functions needed"
" by module\n");
return -1;
}
}
trace_on_flag = (int *)shm_malloc(sizeof(int));
if(trace_on_flag == NULL) {
LM_ERR("no more shm memory left\n");
return -1;
}
*trace_on_flag = trace_on;
xheaders_write_flag = (int *)shm_malloc(sizeof(int));
xheaders_read_flag = (int *)shm_malloc(sizeof(int));
if(!(xheaders_write_flag && xheaders_read_flag)) {
LM_ERR("no more shm memory left\n");
return -1;
}
*xheaders_write_flag = xheaders_write;
*xheaders_read_flag = xheaders_read;
/* register callbacks to TM */
if(load_tm_api(&tmb) != 0) {
LM_WARN("can't load tm api. Will not install tm callbacks.\n");
}
if (load_dlg_api(&dlgb) < 0) {
LM_INFO("can't load dlg api. Will not install dialog callbacks.\n");
} else {
if (dlgb.register_dlgcb(NULL, DLGCB_CREATED, trace_dialog, NULL, NULL) != 0) {
LM_ERR("failed to register dialog callbacks! Tracing dialogs won't be available\n");
}
}
/* bind the SL API */
if(sl_load_api(&slb) != 0) {
LM_WARN("cannot bind to SL API. Will not install sl callbacks.\n");
} else {
/* register sl callbacks */
memset(&slcb, 0, sizeof(sl_cbelem_t));
slcb.type = SLCB_REPLY_READY;
slcb.cbf = trace_sl_onreply_out;
if(slb.register_cb(&slcb) != 0) {
LM_ERR("can't register for SLCB_REPLY_READY\n");
return -1;
}
if(trace_sl_acks) {
slcb.type = SLCB_ACK_FILTERED;
slcb.cbf = trace_sl_ack_in;
if(slb.register_cb(&slcb) != 0) {
LM_ERR("can't register for SLCB_ACK_FILTERED\n");
return -1;
}
}
}
if(dup_uri_str.s != 0) {
dup_uri = (struct sip_uri *)pkg_malloc(sizeof(struct sip_uri));
if(dup_uri == 0) {
LM_ERR("no more pkg memory left\n");
return -1;
}
memset(dup_uri, 0, sizeof(struct sip_uri));
if(parse_uri(dup_uri_str.s, dup_uri_str.len, dup_uri) < 0) {
LM_ERR("bad duplicate_uri\n");
return -1;
}
}
if(force_send_sock_str.s != 0) {
force_send_sock_str.len = strlen(force_send_sock_str.s);
force_send_sock_uri =
(struct sip_uri *)pkg_malloc(sizeof(struct sip_uri));
if(force_send_sock_uri == 0) {
LM_ERR("no more pkg memory left\n");
return -1;
}
memset(force_send_sock_uri, 0, sizeof(struct sip_uri));
if(parse_uri(force_send_sock_str.s, force_send_sock_str.len,
force_send_sock_uri)
< 0) {
LM_ERR("bad force_send_sock\n");
return -1;
}
}
if(traced_user_avp_str.s && traced_user_avp_str.len > 0) {
if(pv_parse_spec(&traced_user_avp_str, &avp_spec) == 0
|| avp_spec.type != PVT_AVP) {
LM_ERR("malformed or non AVP %.*s AVP definition\n",
traced_user_avp_str.len, traced_user_avp_str.s);
return -1;
}
if(pv_get_avp_name(
0, &avp_spec.pvp, &traced_user_avp, &traced_user_avp_type)
!= 0) {
LM_ERR("[%.*s] - invalid AVP definition\n", traced_user_avp_str.len,
traced_user_avp_str.s);
return -1;
}
} else {
traced_user_avp.n = 0;
traced_user_avp_type = 0;
}
if(trace_table_avp_str.s && trace_table_avp_str.len > 0) {
if(pv_parse_spec(&trace_table_avp_str, &avp_spec) == 0
|| avp_spec.type != PVT_AVP) {
LM_ERR("malformed or non AVP %.*s AVP definition\n",
trace_table_avp_str.len, trace_table_avp_str.s);
return -1;
}
if(pv_get_avp_name(
0, &avp_spec.pvp, &trace_table_avp, &trace_table_avp_type)
!= 0) {
LM_ERR("[%.*s] - invalid AVP definition\n", trace_table_avp_str.len,
trace_table_avp_str.s);
return -1;
}
} else {
trace_table_avp.n = 0;
trace_table_avp_type = 0;
}
if(_siptrace_mode == 1) {
sr_event_register_cb(SREV_NET_DATA_RECV, siptrace_net_data_recv);
sr_event_register_cb(SREV_NET_DATA_SEND, siptrace_net_data_send);
}
return 0;
}
static int child_init(int rank)
{
if(rank == PROC_INIT || rank == PROC_MAIN || rank == PROC_TCP_MAIN)
return 0; /* do nothing for the main process */
if(trace_to_database_flag != NULL && *trace_to_database_flag != 0) {
db_con = db_funcs.init(&db_url);
if(!db_con) {
LM_ERR("unable to connect to database. Please check "
"configuration.\n");
return -1;
}
if(DB_CAPABILITY(db_funcs, DB_CAP_QUERY)) {
if(db_check_table_version(
&db_funcs, db_con, &siptrace_table, SIP_TRACE_TABLE_VERSION)
< 0) {
DB_TABLE_VERSION_ERROR(siptrace_table);
db_funcs.close(db_con);
db_con = 0;
return -1;
}
}
}
return 0;
}
static void destroy(void)
{
if(trace_to_database_flag != NULL) {
if(db_con != NULL) {
db_funcs.close(db_con);
}
shm_free(trace_to_database_flag);
}
if(trace_on_flag) {
shm_free(trace_on_flag);
}
}
static inline str *siptrace_get_table(void)
{
static int_str avp_value;
struct usr_avp *avp;
if(trace_table_avp.n == 0)
return &siptrace_table;
avp = NULL;
if(trace_table_avp.n != 0)
avp = search_first_avp(
trace_table_avp_type, trace_table_avp, &avp_value, 0);
if(avp == NULL || !is_avp_str_val(avp) || avp_value.s.len <= 0)
return &siptrace_table;
return &avp_value.s;
}
static int sip_trace_store(siptrace_data_t *sto, dest_info_t *dst,
str *correlation_id_str)
{
int ret = 1;
if(sto == NULL) {
LM_DBG("invalid parameter\n");
return -1;
}
gettimeofday(&sto->tv, NULL);
if(sip_trace_xheaders_read(sto) != 0)
return -1;
ret = sip_trace_store_db(sto);
if(sip_trace_xheaders_write(sto) != 0)
return -1;
if(hep_mode_on) {
trace_send_hep_duplicate(
&sto->body, &sto->fromip, &sto->toip, dst, correlation_id_str);
} else {
if(dst) {
trace_send_duplicate(sto->body.s, sto->body.len, dst);
}
}
if(sip_trace_xheaders_free(sto) != 0)
return -1;
return ret;
}
static int sip_trace_store_db(siptrace_data_t *sto)
{
if(trace_to_database_flag == NULL || *trace_to_database_flag == 0)
goto done;
if(db_con == NULL) {
LM_DBG("database connection not initialized\n");
return -1;
}
db_key_t db_keys[NR_KEYS];
db_val_t db_vals[NR_KEYS];
db_keys[0] = &msg_column;
db_vals[0].type = DB1_BLOB;
db_vals[0].nul = 0;
db_vals[0].val.blob_val = sto->body;
db_keys[1] = &callid_column;
db_vals[1].type = DB1_STR;
db_vals[1].nul = 0;
db_vals[1].val.str_val = sto->callid;
db_keys[2] = &method_column;
db_vals[2].type = DB1_STR;
db_vals[2].nul = 0;
db_vals[2].val.str_val = sto->method;
db_keys[3] = &status_column;
db_vals[3].type = DB1_STR;
db_vals[3].nul = 0;
db_vals[3].val.str_val = sto->status;
db_keys[4] = &fromip_column;
db_vals[4].type = DB1_STR;
db_vals[4].nul = 0;
db_vals[4].val.str_val = sto->fromip;
db_keys[5] = &toip_column;
db_vals[5].type = DB1_STR;
db_vals[5].nul = 0;
db_vals[5].val.str_val = sto->toip;
db_keys[6] = &date_column;
db_vals[6].type = DB1_DATETIME;
db_vals[6].nul = 0;
db_vals[6].val.time_val = sto->tv.tv_sec;
db_keys[7] = &direction_column;
db_vals[7].type = DB1_STRING;
db_vals[7].nul = 0;
db_vals[7].val.string_val = sto->dir;
db_keys[8] = &fromtag_column;
db_vals[8].type = DB1_STR;
db_vals[8].nul = 0;
db_vals[8].val.str_val = sto->fromtag;
db_keys[9] = &traced_user_column;
db_vals[9].type = DB1_STR;
db_vals[9].nul = 0;
db_keys[10] = &time_us_column;
db_vals[10].type = DB1_INT;
db_vals[10].nul = 0;
db_vals[10].val.int_val = sto->tv.tv_usec;
db_keys[11] = &totag_column;
db_vals[11].type = DB1_STR;
db_vals[11].nul = 0;
db_vals[11].val.str_val = sto->totag;
db_funcs.use_table(db_con, siptrace_get_table());
if(trace_on_flag != NULL && *trace_on_flag != 0) {
db_vals[9].val.str_val.s = "";
db_vals[9].val.str_val.len = 0;
LM_DBG("storing info...\n");
if(trace_delayed != 0 && db_funcs.insert_delayed != NULL) {
if(db_funcs.insert_delayed(db_con, db_keys, db_vals, NR_KEYS) < 0) {
LM_ERR("error storing trace\n");
goto error;
}
} else {
if(db_funcs.insert(db_con, db_keys, db_vals, NR_KEYS) < 0) {
LM_ERR("error storing trace\n");
goto error;
}
}
#ifdef STATISTICS
update_stat(sto->stat, 1);
#endif
}
if(sto->avp == NULL)
goto done;
db_vals[9].val.str_val = sto->avp_value.s;
LM_DBG("storing info...\n");
if(trace_delayed != 0 && db_funcs.insert_delayed != NULL) {
if(db_funcs.insert_delayed(db_con, db_keys, db_vals, NR_KEYS) < 0) {
LM_ERR("error storing trace\n");
goto error;
}
} else {
if(db_funcs.insert(db_con, db_keys, db_vals, NR_KEYS) < 0) {
LM_ERR("error storing trace\n");
goto error;
}
}
sto->avp = search_next_avp(&sto->state, &sto->avp_value);
while(sto->avp != NULL) {
db_vals[9].val.str_val = sto->avp_value.s;
LM_DBG("storing info...\n");
if(trace_delayed != 0 && db_funcs.insert_delayed != NULL) {
if(db_funcs.insert_delayed(db_con, db_keys, db_vals, NR_KEYS) < 0) {
LM_ERR("error storing trace\n");
goto error;
}
} else {
if(db_funcs.insert(db_con, db_keys, db_vals, NR_KEYS) < 0) {
LM_ERR("error storing trace\n");
goto error;
}
}
sto->avp = search_next_avp(&sto->state, &sto->avp_value);
}
done:
return 1;
error:
return -1;
}
enum siptrace_type_t parse_siptrace_flag(str* sflags)
{
int idx;
enum siptrace_type_t trace_type = SIPTRACE_NONE;
if (sflags == NULL || sflags->s == NULL || sflags->len == 0) {
return SIPTRACE_NONE;
}
for (idx = 0; idx < sflags->len; idx++) {
switch(sflags->s[idx]|0x20) { /*|0x20 - to lowercase */
case SIPTRACE_MESSAGE:
case SIPTRACE_TRANSACTION:
case SIPTRACE_DIALOG:
if (trace_type != SIPTRACE_NONE) {
LM_ERR("only one tracing flag can be used <%.*s>!\n",
sflags->len, sflags->s);
return SIPTRACE_NONE;
}
trace_type = (sflags->s[idx]|0x20);
break;
case ' ':
case '\t':
break;
default:
LM_ERR("Invalid character <%c> in <%.*s> at position <%d>!\n", sflags->s[idx],
sflags->len, sflags->s, idx);
return SIPTRACE_NONE;
}
}
return trace_type;
}
static int fixup_siptrace(void **param, int param_no)
{
str sflags;
enum siptrace_type_t trace_type;
if(param_no < 1 || param_no > 3) {
LM_DBG("params:%s\n", (char *)*param);
return 0;
}
if (param_no == 1 || param_no == 2) {
/* correlation id */
return fixup_spve_all(param, param_no);
} else if (param_no == 3) {
/* tracing type; string only */
sflags.s = (char *)*param;
sflags.len = strlen(sflags.s);
trace_type = parse_siptrace_flag(&sflags);
if (trace_type == SIPTRACE_NONE) {
LM_ERR("Failed to parse trace type!\n");
return -1;
}
*param = pkg_malloc(sizeof(trace_type));
if (*param == NULL) {
LM_ERR("no more pkg memory!\n");
return -1;
}
memcpy(*param, &trace_type, sizeof(trace_type));
}
return 0;
}
/**
*
* parse_siptrace_uri (to replace siptrace_fixup and ki_sip_trace_dst_cid beginning)
* parse_siptrace_type
*
*/
static int parse_siptrace_uri(str* duri, dest_info_t* dst)
{
sip_uri_t uri;
proxy_l_t *p = NULL;
if (dst == NULL) {
LM_ERR("bad destination!\n");
return -1;
}
if (duri == NULL || duri->len <= 0) {
if(dup_uri) {
uri = *dup_uri;
} else {
LM_ERR("Missing duplicate URI\n");
return -1;
}
} else {
memset(&uri, 0, sizeof(struct sip_uri));
if(parse_uri(duri->s, duri->len, &uri) < 0) {
LM_ERR("bad dup uri\n");
return -1;
}
}
init_dest_info(dst);
/* create a temporary proxy*/
dst->proto = PROTO_UDP;
p = mk_proxy(&uri.host, (uri.port_no) ? uri.port_no : SIP_PORT, dst->proto);
if(p == 0) {
LM_ERR("bad host name in uri\n");
return -1;
}
hostent2su(&dst->to, &p->host, p->addr_idx, (p->port) ? p->port : SIP_PORT);
/* free temporary proxy*/
if(p) {
free_proxy(p); /* frees only p content, not p itself */
pkg_free(p);
}
return 0;
}
/**
*
*/
static int sip_trace_helper(sip_msg_t *msg, dest_info_t *dst, str *duri,
str *corid, char *dir, enum siptrace_type_t trace_type)
{
siptrace_info_t* info = NULL;
char *p = NULL;
if (trace_type == SIPTRACE_TRANSACTION || trace_type == SIPTRACE_DIALOG) {
int alloc_size = sizeof(siptrace_info_t);
/*
* for each type check that conditions are created
* transaction: it's a request starting a transaction; tm module loaded
* dialog: it's an INVITE; dialog module is loaded
*
* */
if (tmb.t_gett == NULL) {
LM_WARN("TM module not loaded! Tracing only current message!\n");
goto trace_current;
}
if (trace_type == SIPTRACE_DIALOG && dlgb.get_dlg == NULL) {
LM_WARN("DIALOG module not loaded! Tracing only current message!\n");
goto trace_current;
}
if (msg->first_line.type != SIP_REQUEST ||
(trace_type == SIPTRACE_DIALOG && msg->first_line.u.request.method_value != METHOD_INVITE)) {
LM_WARN("When tracing a %s sip_trace() has to be initiated on the %s\n",
trace_type == SIPTRACE_TRANSACTION ? "transaction" : "dialog",
trace_type == SIPTRACE_TRANSACTION ? "request message" : "initial invite");
return -1;
}
if (corid) {
alloc_size += corid->len;
}
if (duri) {
alloc_size += duri->len;
}
info = shm_malloc(alloc_size);
if (info == NULL) {
LM_ERR("No more shm!\n");
return -1;
}
memset(info, 0, alloc_size);
p = (char *)(info + 1);
/* could use the dest_info we've already parsed but there's no way to pass
* it to DLGCB_CREATED callback so the only thing to do is keep
* it as uri, serialize in a dlg_var and parse again in DLGCB_CREATED */
if(corid) {
info->correlation_id.s = p;
info->correlation_id.len = corid->len;
memcpy(info->correlation_id.s, corid->s, corid->len);
}
if (duri) {
info->uriState = STRACE_RAW_URI;
info->u.dup_uri.s = p + ((info->correlation_id.s)?info->correlation_id.len:0);
memcpy(info->u.dup_uri.s, duri->s, duri->len);
info->u.dup_uri.len = duri->len;
} else {
info->uriState = STRACE_UNUSED_URI;
}
if (trace_type == SIPTRACE_TRANSACTION) {
trace_transaction(msg, info, 0);
} else if (trace_type == SIPTRACE_DIALOG) {
if (unlikely(dlgb.set_dlg_var == NULL)) {
/* FIXME should we abort tracing here? */
LM_WARN("Dialog api not loaded! will trace only current transaction!\n");
} else {
/* serialize what's in info */
/* save correlation id in siptrace_info avp
* we want to have traced user avp value at the moment of sip_trace function call*/
if (add_info_xavp(info) < 0) {
LM_ERR("failed to serialize siptrace info! Won't trace dialog!\n");
return -1;
} else {
msg->msg_flags |= FL_SIPTRACE;
}
}
/**
* WARNING: don't move trace_transaction before add_info_xavp()
* add_info_xavp() expects the URI in RAW format, unparsed
* trace_transaction() parses the URI if it finds it in raw format;
* a BUG will be thrown if this happens
*/
trace_transaction(msg, info, 1);
}
}
if(trace_type != SIPTRACE_MESSAGE && trace_is_off(msg)) {
LM_DBG("trace off...\n");
return 1;
}
trace_current:
return sip_trace(msg, dst, corid, dir);
}
/**
* Send sip trace with destination and correlation id and specify what messages to be traced
*/
static int ki_sip_trace_dst_cid_flag(sip_msg_t *msg, str *duri, str *cid, str* sflag)
{
dest_info_t dst;
enum siptrace_type_t trace_type;
if(duri) {
if (parse_siptrace_uri(duri, &dst) < 0) {
LM_ERR("failed to parse siptrace uri!\n");
return -1;
}
}
if (sflag) {
trace_type = parse_siptrace_flag(sflag);
if (trace_type == SIPTRACE_NONE) {
LM_ERR("Invalid flags <%.*s>\n", sflag->len, sflag->s);
}
} else {
trace_type = SIPTRACE_MESSAGE;
}
return sip_trace_helper(msg, (duri)?&dst:NULL, duri, cid, NULL, trace_type);
}
/**
* Send sip trace with destination and correlation id
*/
static int ki_sip_trace_dst_cid(sip_msg_t *msg, str *duri, str *cid)
{
return ki_sip_trace_dst_cid_flag(msg, duri, cid, NULL);
}
/**
* Send sip trace with destination
*/
static int ki_sip_trace_dst(sip_msg_t *msg, str *duri)
{
return ki_sip_trace_dst_cid_flag(msg, duri, NULL, NULL);
}
/**
*
*/
static int ki_sip_trace(sip_msg_t *msg)
{
return ki_sip_trace_dst_cid_flag(msg, NULL, NULL, NULL);
}
/**
*
*/
static int w_sip_trace0(sip_msg_t *msg, char *dest, char *correlation_id)
{
return w_sip_trace3(msg, NULL, NULL, NULL);
}
/**
*
*/
static int w_sip_trace1(sip_msg_t *msg, char *dest, char *p2)
{
return w_sip_trace3(msg, dest, NULL, NULL);
}
/**
*
*/
static int w_sip_trace2(sip_msg_t *msg, char *dest, char *correlation_id)
{
return w_sip_trace3(msg, dest, correlation_id, NULL);
}
static int w_sip_trace3(sip_msg_t *msg, char *dest, char *correlation_id, char *trace_type_p)
{
str dup_uri_param_str = {0, 0};
str correlation_id_str = {0, 0};
dest_info_t dest_info;
enum siptrace_type_t trace_type;
if (dest) {
if(fixup_get_svalue(msg, (gparam_t *)dest, &dup_uri_param_str) != 0) {