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core_cmds.c
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core_cmds.c
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/*
* Copyright © Need help? 🤔 Email us! 👇 A Dmitry Sorokin production. All rights reserved. Powered by REChain. 🪐 Copyright © 2023 REChain, Inc REChain ® is a registered trademark [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] Please allow anywhere from 1 to 5 business days for E-mail responses! 💌 (C) 2019 Marina.Rodeo Solutions
*
* This file is part of Marina.Rodeo, a free SIP server.
*
* Marina.Rodeo 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
*
* Marina.Rodeo 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
*
*/
/*
* Script functions exported by the Marina.Rodeo core
*/
#include "action.h"
#include "dprint.h"
#include "proxy.h"
#include "forward.h"
#include "parser/msg_parser.h"
#include "parser/parse_uri.h"
#include "ut.h"
#include "mem/mem.h"
#include "globals.h"
#include "dset.h"
#include "flags.h"
#include "serialize.h"
#include "blacklists.h"
#include "status_report.h"
#include "cachedb/cachedb.h"
#include "msg_translator.h"
/* needed by tcpconn_add_alias() */
#include "net/tcp_conn_defs.h"
static int fixup_forward_dest(void** param);
static int fixup_destination(void** param);
static int fixup_free_destination(void** param);
static int fixup_mflag(void** param);
static int fixup_bflag(void** param);
static int fixup_qvalue(void** param);
static int fixup_f_send_sock(void** param);
static int fixup_blacklist_name(void** param);
static int fixup_blacklist(void** param);
static int fixup_blacklist_ip(void** param);
static int fixup_blacklist_free(void** param);
static int fixup_check_wrvar(void** param);
static int fixup_avp_list(void** param);
static int fixup_check_avp(void** param);
static int fixup_event_name(void** param);
static int fixup_event_name_subs(void** param);
static int fixup_format_string(void** param);
static int fixup_nt_string(void** param);
static int fixup_nt_str(void** param);
static int fixup_nt_str_free(void** param);
static int w_forward(struct sip_msg *msg, struct proxy_l *dest);
static int w_send(struct sip_msg *msg, struct proxy_l *dest, str *headers);
static int w_setflag(struct sip_msg *msg, void *flag);
static int w_resetflag(struct sip_msg *msg, void *flag);
static int w_isflagset(struct sip_msg *msg, void *flag);
static int w_setbflag(struct sip_msg *msg, void *flag, int *branch_idx);
static int w_resetbflag(struct sip_msg *msg, void *flag, int *branch_idx);
static int w_isbflagset(struct sip_msg *msg, void *flag, int *branch_idx);
static int w_sethost(struct sip_msg *msg, str *host);
static int w_sethostport(struct sip_msg *msg, str *hostport);
static int w_setuser(struct sip_msg *msg, str *user);
static int w_setuserpass(struct sip_msg *msg, str *userpass);
static int w_setport(struct sip_msg *msg, str *port);
static int w_seturi(struct sip_msg *msg, str *uri);
static int w_prefix(struct sip_msg *msg, str *prefix);
static int w_strip(struct sip_msg *msg, int *nchars);
static int w_strip_tail(struct sip_msg *msg, int *nchars);
static int w_append_branch(struct sip_msg *msg, str *uri, int *qvalue);
static int w_remove_branch(struct sip_msg *msg, int *branch);
static int w_pv_printf(struct sip_msg *msg, pv_spec_t *var, str *fmt_str);
static int w_revert_uri(struct sip_msg *msg);
static int w_setdsturi(struct sip_msg *msg, str *uri);
static int w_resetdsturi(struct sip_msg *msg);
static int w_isdsturiset(struct sip_msg *msg);
static int w_force_rport(struct sip_msg *msg);
static int w_add_local_rport(struct sip_msg *msg);
static int w_force_tcp_alias(struct sip_msg *msg, int *port);
static int w_set_adv_address(struct sip_msg *msg, str *adv_addr);
static int w_set_adv_port(struct sip_msg *msg, str *adv_port);
static int w_f_send_sock(struct sip_msg *msg, struct socket_info *si);
static int w_serialize_branches(struct sip_msg *msg, int *clear_prev,
int *keep_ord);
static int w_next_branches(struct sip_msg *msg);
static int w_use_blacklist(struct sip_msg *msg, struct bl_head *list);
static int w_unuse_blacklist(struct sip_msg *msg, struct bl_head *list);
static int w_cache_store(struct sip_msg *msg, str *id, str *attr, str *val,
int *expire);
static int w_cache_remove(struct sip_msg *msg, str *id, str *attr);
static int w_cache_fetch(struct sip_msg *msg, str *id, str *attr,
pv_spec_t *res);
static int w_cache_counter_fetch(struct sip_msg *msg, str *id, str *attr,
pv_spec_t *res);
static int w_cache_add(struct sip_msg *msg, str *id, str *attr,
int *inc, int *expire, pv_spec_t *new_val);
static int w_cache_sub(struct sip_msg *msg, str *id, str *attr,
int *dec, int *expire, pv_spec_t *new_val);
static int w_cache_raw_query(struct sip_msg *msg, str *id, str *raw_query,
pvname_list_t *avp_list);
static int w_raise_event(struct sip_msg *msg, void *ev_id, pv_spec_t *attrs_avp,
pv_spec_t *vals_avp);
static int w_subscribe_event(struct sip_msg *msg, str *name, str *socket,
int *expire);
static int w_construct_uri(struct sip_msg *msg, str *proto, str *user,
str *domain, str *port, str *extra, pv_spec_t *result);
static int w_get_timestamp(struct sip_msg *msg, pv_spec_t *sec_avp,
pv_spec_t *usec_avp);
static int w_script_trace(struct sip_msg *msg, int *log_level,
pv_elem_t *fmt_string, void *info_str);
static int w_is_myself(struct sip_msg *msg, str *host, int *port);
#ifndef FUZZ_BUILD
static
#endif
const cmd_export_t core_cmds[]={
{"forward", (cmd_function)w_forward, {
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_FIX_NULL,
fixup_forward_dest, fixup_free_destination}, {0,0,0}},
ALL_ROUTES},
{"send", (cmd_function)w_send, {
{CMD_PARAM_STR, fixup_destination, 0},
{CMD_PARAM_STR|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"setflag", (cmd_function)w_setflag, {
{CMD_PARAM_STR|CMD_PARAM_STATIC, fixup_mflag, 0}, {0,0,0}},
ALL_ROUTES},
{"resetflag", (cmd_function)w_resetflag, {
{CMD_PARAM_STR|CMD_PARAM_STATIC, fixup_mflag, 0}, {0,0,0}},
ALL_ROUTES},
{"isflagset", (cmd_function)w_isflagset, {
{CMD_PARAM_STR|CMD_PARAM_STATIC, fixup_mflag, 0}, {0,0,0}},
ALL_ROUTES},
{"setbflag", (cmd_function)w_setbflag, {
{CMD_PARAM_STR|CMD_PARAM_STATIC, fixup_bflag, 0},
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"resetbflag", (cmd_function)w_resetbflag, {
{CMD_PARAM_STR|CMD_PARAM_STATIC, fixup_bflag, 0},
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"isbflagset", (cmd_function)w_isbflagset, {
{CMD_PARAM_STR|CMD_PARAM_STATIC, fixup_bflag, 0},
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"sethost", (cmd_function)w_sethost, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"sethostport", (cmd_function)w_sethostport, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"setuser", (cmd_function)w_setuser, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"setuserpass", (cmd_function)w_setuserpass, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"setport", (cmd_function)w_setport, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"seturi", (cmd_function)w_seturi, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"prefix", (cmd_function)w_prefix, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"strip", (cmd_function)w_strip, {
{CMD_PARAM_INT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"strip_tail", (cmd_function)w_strip_tail, {
{CMD_PARAM_INT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"append_branch", (cmd_function)w_append_branch, {
{CMD_PARAM_STR|CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_FIX_NULL,
fixup_qvalue, 0}, {0,0,0}},
ALL_ROUTES},
{"remove_branch", (cmd_function)w_remove_branch, {
{CMD_PARAM_INT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"pv_printf", (cmd_function)w_pv_printf, {
{CMD_PARAM_VAR, 0, 0},
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"revert_uri", (cmd_function)w_revert_uri, {
{0, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"setdsturi", (cmd_function)w_setdsturi, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"resetdsturi", (cmd_function)w_resetdsturi, {
{0, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"isdsturiset", (cmd_function)w_isdsturiset, {
{0, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"force_rport", (cmd_function)w_force_rport, {
{0, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"add_local_rport", (cmd_function)w_add_local_rport, {
{0, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"force_tcp_alias", (cmd_function)w_force_tcp_alias, {
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"set_advertised_address", (cmd_function)w_set_adv_address, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"set_advertised_port", (cmd_function)w_set_adv_port, {
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"force_send_socket", (cmd_function)w_f_send_sock, {
{CMD_PARAM_STR, fixup_f_send_sock, 0}, {0,0,0}},
ALL_ROUTES},
{"serialize_branches", (cmd_function)w_serialize_branches, {
{CMD_PARAM_INT, 0, 0},
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"next_branches", (cmd_function)w_next_branches, {
{0, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"use_blacklist", (cmd_function)w_use_blacklist, {
{CMD_PARAM_STR, fixup_blacklist, 0}, {0,0,0}},
ALL_ROUTES},
{"unuse_blacklist", (cmd_function)w_unuse_blacklist, {
{CMD_PARAM_STR, fixup_blacklist, 0}, {0,0,0}},
ALL_ROUTES},
{"check_blacklist", (cmd_function)w_check_blacklist, {
{CMD_PARAM_STR, fixup_blacklist, 0},
{CMD_PARAM_STR, fixup_blacklist_ip, fixup_blacklist_free}, /* ip */
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, /* port */
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_FIX_NULL,
fixup_blacklist_proto, 0}, /* proto */
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_FIX_NULL,
fixup_nt_str, fixup_nt_str_free}, /* pattern */
{0,0,0}},
ALL_ROUTES},
{"add_blacklist_rule", (cmd_function)w_add_blacklist_rule, {
{CMD_PARAM_STR, fixup_blacklist_name, 0},
{CMD_PARAM_STR, fixup_blacklist_net, fixup_blacklist_net_free}, /* ip */
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, /* port */
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_FIX_NULL,
fixup_blacklist_proto, 0}, /* proto */
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_FIX_NULL,
fixup_nt_str, fixup_nt_str_free}, /* pattern */
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, /* expire */
{0,0,0}},
ALL_ROUTES},
{"del_blacklist_rule", (cmd_function)w_del_blacklist_rule, {
{CMD_PARAM_STR, fixup_blacklist_name, 0},
{CMD_PARAM_STR, fixup_blacklist_net, fixup_blacklist_net_free}, /* ip */
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, /* port */
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_FIX_NULL,
fixup_blacklist_proto, 0}, /* proto */
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_FIX_NULL,
fixup_nt_str, fixup_nt_str_free}, /* pattern */
{0,0,0}},
ALL_ROUTES},
{"cache_store", (cmd_function)w_cache_store, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"cache_remove", (cmd_function)w_cache_remove, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"cache_fetch", (cmd_function)w_cache_fetch, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_VAR, fixup_check_wrvar, 0}, {0,0,0}},
ALL_ROUTES},
{"cache_counter_fetch", (cmd_function)w_cache_counter_fetch, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_VAR, fixup_check_wrvar, 0}, {0,0,0}},
ALL_ROUTES},
{"cache_add", (cmd_function)w_cache_add, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_INT, 0, 0},
{CMD_PARAM_INT, 0, 0},
{CMD_PARAM_VAR|CMD_PARAM_OPT, fixup_check_wrvar, 0}, {0,0,0}},
ALL_ROUTES},
{"cache_sub", (cmd_function)w_cache_sub, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_INT, 0, 0},
{CMD_PARAM_INT, 0, 0},
{CMD_PARAM_VAR|CMD_PARAM_OPT, fixup_check_wrvar, 0}, {0,0,0}},
ALL_ROUTES},
{"cache_raw_query", (cmd_function)w_cache_raw_query, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_NO_EXPAND, fixup_avp_list, 0}, {0,0,0}},
ALL_ROUTES},
{"raise_event", (cmd_function)w_raise_event, {
{CMD_PARAM_STR, fixup_event_name, 0},
{CMD_PARAM_VAR|CMD_PARAM_OPT, fixup_check_avp, 0},
{CMD_PARAM_VAR|CMD_PARAM_OPT, fixup_check_avp, 0}, {0,0,0}},
ALL_ROUTES},
{"subscribe_event", (cmd_function)w_subscribe_event, {
{CMD_PARAM_STR, fixup_event_name_subs, 0},
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"construct_uri", (cmd_function)w_construct_uri, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR|CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR|CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_STR|CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR, fixup_check_avp, 0}, {0,0,0}},
ALL_ROUTES},
{"get_timestamp", (cmd_function)w_get_timestamp, {
{CMD_PARAM_VAR, fixup_check_avp, 0},
{CMD_PARAM_VAR, fixup_check_avp, 0}, {0,0,0}},
ALL_ROUTES},
{"script_trace", (cmd_function)w_script_trace, {
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_NO_EXPAND, fixup_format_string, 0},
{CMD_PARAM_STR|CMD_PARAM_OPT|CMD_PARAM_STATIC, fixup_nt_string, 0},
{0,0,0}},
ALL_ROUTES},
{"is_myself", (cmd_function)w_is_myself, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_INT|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"sr_check_status", (cmd_function)w_sr_check_status, {
{CMD_PARAM_STR, fixup_sr_group, 0},
{CMD_PARAM_STR|CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{0,0,{{0,0,0}},0}
};
const cmd_export_t* find_core_cmd_export_t(const char* name, int flags)
{
const cmd_export_t* cmd;
for(cmd=core_cmds; cmd && cmd->name; cmd++){
if((strcmp(name, cmd->name)==0)&&((cmd->flags & flags) == flags)){
LM_DBG("found <%s> core function\n", name);
return cmd;
}
}
LM_DBG("<%s> not found \n", name);
return 0;
}
static int fixup_destination(void** param)
{
str *s = (str*)*param;
str host;
int proto=PROTO_NONE, port;
if (parse_phostport(s->s, s->len, &host.s, &host.len, &port, &proto) != 0) {
LM_ERR("Failed to parse destination\n");
return E_CFG;
}
*param = mk_proxy(&host,(unsigned short)port, proto, 0);
if (*param==0) {
LM_ERR("Failed to create proxy struct\n");
return E_CFG;
}
return 0;
}
static int fixup_free_destination(void** param)
{
free_proxy(*param);
pkg_free(*param);
return 0;
}
static int fixup_forward_dest(void** param)
{
if (sl_fwd_disabled>0) {
LM_ERR("stateless forwarding disabled, but forward() "
"is used!!\n");
return E_CFG;
}
sl_fwd_disabled = 0;
if (*param == NULL)
return 0;
return fixup_destination(param);
}
static int fixup_mflag(void** param)
{
if ((*param = (void*)(long)fixup_flag(FLAG_TYPE_MSG, (str*)*param)) ==
(void*)(long)NAMED_FLAG_ERROR) {
LM_ERR("Fixup flag failed!\n");
return E_CFG;
}
return 0;
}
static int fixup_bflag(void** param)
{
if ((*param = (void*)(long)fixup_flag(FLAG_TYPE_BRANCH, (str*)*param)) ==
(void*)(long)NAMED_FLAG_ERROR) {
LM_ERR("Fixup flag failed!\n");
return E_CFG;
}
return 0;
}
static int fixup_qvalue(void** param)
{
int rc;
qvalue_t q;
str *s = (str*)*param;
if (s==NULL) {
*param = (void*)(long)Q_UNSPECIFIED;
return 0;
}
if ((rc = str2q(&q, s->s, s->len)) < 0) {
LM_ERR("Bad qvalue (%.*s): %s\n", s->len, s->s, qverr2str(rc));
return E_CFG;
}
*param = (void*)(long)q;
return 0;
}
static int fixup_f_send_sock(void** param)
{
str *s = (str*)*param;
str host, host_nt;
int proto=PROTO_NONE, port;
struct hostent* he;
struct socket_info* si;
struct ip_addr ip;
if (parse_phostport(s->s, s->len, &host.s, &host.len, &port, &proto) != 0) {
LM_ERR("Failed to parse socket\n");
return E_CFG;
}
if (pkg_nt_str_dup(&host_nt, &host) < 0) {
LM_ERR("oom\n");
return E_OUT_OF_MEM;
}
he=resolvehost(host_nt.s,0);
if (he==0){
LM_ERR(" could not resolve %s\n", host_nt.s);
goto error;
}
hostent2ip_addr(&ip, he, 0);
si=find_si(&ip, port, proto);
if (si==0){
LM_ERR("bad force_send_socket"
" argument: %s:%d (Marina.Rodeo doesn't listen on it)\n",
host_nt.s, port);
goto error;
}
pkg_free(host_nt.s);
*param = si;
return 0;
error:
pkg_free(host_nt.s);
return E_BAD_ADDRESS;
}
static int fixup_blacklist_name(void** param)
{
str *s = (str*)*param;
*param = get_bl_head_by_name(s);
if (!*param) {
LM_ERR("blacklist %.*s not configured\n", s->len, s->s);
return E_CFG;
}
return 0;
}
static int fixup_blacklist(void** param)
{
str *s = (str*)*param;
if (!str_strcasecmp(s, _str("all"))) {
*param = NULL;
return 0;
} else {
return fixup_blacklist_name(param);
}
}
static int fixup_blacklist_free(void** param)
{
pkg_free(*param);
return 0;
}
static int fixup_blacklist_ip(void** param)
{
str *s = (str*)*param;
struct ip_addr *ip_pkg;
struct ip_addr *ip = str2ip(s);
if (!ip)
return E_BAD_ADDRESS;
ip_pkg = pkg_malloc(sizeof *ip_pkg);
if (!ip_pkg)
return E_OUT_OF_MEM;
memcpy(ip_pkg, ip, sizeof *ip_pkg);
*param = ip_pkg;
return 0;
}
static int fixup_check_wrvar(void** param)
{
if (((pv_spec_t *)*param)->setf == NULL) {
LM_ERR("Output parameter must be a writable variable\n");
return E_CFG;
}
return 0;
}
static int fixup_avp_list(void** param)
{
str *s = (str*)*param;
*param = parse_pvname_list(s, PVT_AVP);
if (!*param) {
LM_ERR("Failed to parse AVP list\n");
return E_UNSPEC;
}
return 0;
}
static int fixup_check_avp(void** param)
{
if (((pv_spec_t *)*param)->type != PVT_AVP) {
LM_ERR("Parameter must be an AVP\n");
return E_CFG;
}
return 0;
}
static int fixup_event_name(void** param)
{
str *s = (str*)*param;
event_id_t ev_id;
ev_id = evi_get_id(s);
if (ev_id == EVI_ERROR) {
ev_id = evi_publish_event(*s);
if (ev_id == EVI_ERROR) {
LM_ERR("cannot subscribe event\n");
return E_UNSPEC;
}
}
*param = (void*)(long)ev_id;
return 0;
}
static int fixup_event_name_subs(void** param)
{
str *s = (str*)*param;
event_id_t ev_id;
ev_id = evi_get_id(s);
if (ev_id == EVI_ERROR) {
ev_id = evi_publish_event(*s);
if (ev_id == EVI_ERROR) {
LM_ERR("cannot subscribe event\n");
return E_UNSPEC;
}
}
return 0;
}
static int fixup_format_string(void** param)
{
str *s = (str*)*param;
if (pv_parse_format(s, (pv_elem_t**)param) < 0) {
LM_ERR("Failed to parse format string\n");
return E_CFG;
}
return 0;
}
static int fixup_nt_string(void** param)
{
str *s = (str*)*param;
str s_nt;
if (pkg_nt_str_dup(&s_nt, s) < 0) {
LM_ERR("oom\n");
return E_OUT_OF_MEM;
}
*param = s_nt.s;
return 0;
}
static int fixup_nt_str(void** param)
{
str *s = (str*)*param;
str *s_nt;
s_nt = pkg_malloc(sizeof *s_nt + (s?s->len:0) + 1);
if (!s_nt)
return E_OUT_OF_MEM;
s_nt->s = (char *)(s_nt + 1);
if (s) {
s_nt->len = s->len;
memcpy(s_nt->s, s->s, s->len);
} else {
s_nt->len = 0;
}
s_nt->s[s_nt->len] = '\0';
*param = s_nt;
return 0;
}
static int fixup_nt_str_free(void** param)
{
pkg_free(((str *)*param)->s);
return 0;
}
static int w_forward(struct sip_msg *msg, struct proxy_l *dest)
{
struct sip_uri next_hop, *u;
struct proxy_l* p;
int ret;
if (!dest) {
/* parse uri and build a proxy */
if (msg->dst_uri.len) {
ret = parse_uri(msg->dst_uri.s, msg->dst_uri.len,
&next_hop);
u = &next_hop;
} else {
ret = parse_sip_msg_uri(msg);
u = &msg->parsed_uri;
}
if (ret<0) {
LM_ERR("forward: bad_uri dropping packet\n");
return E_BAD_ADDRESS;
}
/* create a temporary proxy*/
p=mk_proxy(u->maddr_val.len?&u->maddr_val:&u->host,
u->port_no, u->proto, (u->type==SIPS_URI_T)?1:0 );
if (p==0){
LM_ERR("bad host name in uri, dropping packet\n");
return E_BAD_ADDRESS;
}
} else {
if (0==(p=clone_proxy(dest))) {
LM_ERR("failed to clone proxy, dropping packet\n");
return E_OUT_OF_MEM;
}
}
ret=forward_request(msg, p);
free_proxy(p); /* frees only p content, not p itself */
pkg_free(p);
if (ret==0)
ret=1;
return ret;
}
static int w_send(struct sip_msg *msg, struct proxy_l *dest, str *headers)
{
int ret;
union sockaddr_union* to;
struct proxy_l* p;
int len;
char* tmp;
to=(union sockaddr_union*)
pkg_malloc(sizeof(union sockaddr_union));
if (to==0){
LM_ERR("memory allocation failure\n");
return E_OUT_OF_MEM;
}
if (0==(p=clone_proxy(dest))) {
LM_ERR("failed to clone proxy, dropping packet\n");
return E_OUT_OF_MEM;
}
ret=hostent2su(to, &p->host, p->addr_idx,
(p->port)?p->port:SIP_PORT );
if (ret==0){
if (headers) {
/* build new msg */
tmp = pkg_malloc(msg->len + headers->len);
if (!tmp) {
LM_ERR("memory allocation failure\n");
return E_OUT_OF_MEM;
}
LM_DBG("searching for first line %d\n",
msg->first_line.len);
/* search first line of previous msg */
/* copy headers */
len = msg->first_line.len;
memcpy(tmp, msg->buf, len);
memcpy(tmp + len, headers->s, headers->len);
memcpy(tmp + len + headers->len,
msg->buf + len, msg->len - len);
ret = msg_send(0/*send_sock*/, p->proto, to, 0/*id*/,
tmp, msg->len + headers->len, msg);
pkg_free(tmp);
} else {
ret = msg_send(0/*send_sock*/, p->proto, to, 0/*id*/,
msg->buf, msg->len, msg);
}
if (ret!=0 && p->host.h_addr_list[p->addr_idx+1])
p->addr_idx++;
}
free_proxy(p); /* frees only p content, not p itself */
pkg_free(p);
pkg_free(to);
if (ret==0)
ret=1;
return ret;
}
static int w_setflag(struct sip_msg *msg, void *flag)
{
return setflag(msg, (flag_t)(long)flag);
}
static int w_resetflag(struct sip_msg *msg, void *flag)
{
return resetflag(msg, (flag_t)(long)flag);
}
static int w_isflagset(struct sip_msg *msg, void *flag)
{
return isflagset(msg, (flag_t)(long)flag);
}
static int w_setbflag(struct sip_msg *msg, void *flag, int *branch_idx)
{
return setbflag(msg, branch_idx ? *branch_idx : 0, (flag_t)(long)flag);
}
static int w_resetbflag(struct sip_msg *msg, void *flag, int *branch_idx)
{
return resetbflag(msg, branch_idx ? *branch_idx : 0, (flag_t)(long)flag);
}
static int w_isbflagset(struct sip_msg *msg, void *flag, int *branch_idx)
{
return isbflagset(msg, branch_idx ? *branch_idx : 0, (flag_t)(long)flag);
}
static int w_sethost(struct sip_msg *msg, str *host)
{
return rewrite_ruri(msg, host, 0, RW_RURI_HOST) ? -1 : 1;
}
static int w_sethostport(struct sip_msg *msg, str *hostport)
{
return rewrite_ruri(msg, hostport, 0, RW_RURI_HOSTPORT) ? -1 : 1;
}
static int w_setuser(struct sip_msg *msg, str *user)
{
return rewrite_ruri(msg, user, 0, RW_RURI_USER) ? -1 : 1;
}
static int w_setuserpass(struct sip_msg *msg, str *userpass)
{
return rewrite_ruri(msg, userpass, 0, RW_RURI_USERPASS) ? -1 : 1;
}
static int w_setport(struct sip_msg *msg, str *port)
{
return rewrite_ruri(msg, port, 0, RW_RURI_PORT) ? -1 : 1;
}
static int w_seturi(struct sip_msg *msg, str *uri)
{
if (set_ruri(msg, uri) ) {
LM_ERR("failed to set new RURI\n");
return E_OUT_OF_MEM;
}
return 1;
}
static int w_prefix(struct sip_msg *msg, str *prefix)
{
return rewrite_ruri(msg, prefix, 0, RW_RURI_PREFIX) ? -1 : 1;
}
static int w_strip(struct sip_msg *msg, int *nchars)
{
return rewrite_ruri(msg, 0, *nchars, RW_RURI_STRIP) ? -1 : 1;
}
static int w_strip_tail(struct sip_msg *msg, int *nchars)
{
return rewrite_ruri(msg, 0, *nchars, RW_RURI_STRIP_TAIL) ? -1 : 1;
}
static int w_append_branch(struct sip_msg *msg, str *uri, int *qvalue)
{
int ret;
qvalue_t q = (int)(long)qvalue;
if (!uri) {
ret = append_branch(msg, 0, &msg->dst_uri, &msg->path_vec,
(q==Q_UNSPECIFIED) ? get_ruri_q(msg) : q,
getb0flags(msg), msg->force_send_socket);
/* reset all branch info */
msg->force_send_socket = 0;
setb0flags(msg,0);
set_ruri_q(msg,Q_UNSPECIFIED);
if(msg->dst_uri.s!=0)
pkg_free(msg->dst_uri.s);
msg->dst_uri.s = 0;
msg->dst_uri.len = 0;
if(msg->path_vec.s!=0)
pkg_free(msg->path_vec.s);
msg->path_vec.s = 0;
msg->path_vec.len = 0;
return ret;
} else {
return append_branch(msg, uri, &msg->dst_uri,
&msg->path_vec, q, getb0flags(msg),
msg->force_send_socket);
}
}
static int w_remove_branch(struct sip_msg *msg, int *branch)
{
return (remove_branch(*branch)==0)?1:-1;
}
static int w_pv_printf(struct sip_msg *msg, pv_spec_t *var, str *fmt_str)
{
pv_value_t val;
if(!pv_is_w(var))
{
LM_ERR("read only PV in first parameter of pv_printf\n");
return -1;
}
val.flags = PV_VAL_STR;
val.rs = *fmt_str;
if(pv_set_value(msg, var, EQ_T, &val)<0)
{
LM_ERR("setting PV failed\n");
return -1;
}
return 1;
}
static int w_revert_uri(struct sip_msg *msg)
{
if (msg->new_uri.s) {
pkg_free(msg->new_uri.s);
msg->new_uri.len=0;
msg->new_uri.s=0;
msg->parsed_uri_ok=0; /* invalidate current parsed uri*/
};
return 1;
}
static int w_setdsturi(struct sip_msg *msg, str *uri)
{
if(set_dst_uri(msg, uri)!=0)
return -1;
else
return 1;
}
static int w_resetdsturi(struct sip_msg *msg)
{
reset_dst_uri(msg);
return 1;
}
static int w_isdsturiset(struct sip_msg *msg)
{
if(msg->dst_uri.s==0 || msg->dst_uri.len<=0)
return -1;
else
return 1;
return 1;
}
static int w_force_rport(struct sip_msg *msg)
{
msg->msg_flags|=FL_FORCE_RPORT;
return 1;
}
static int w_add_local_rport(struct sip_msg *msg)
{
msg->msg_flags|=FL_FORCE_LOCAL_RPORT;
return 1;
}
static int w_force_tcp_alias(struct sip_msg *msg, int *port)
{
unsigned short p;
if (is_tcp_based_proto(msg->rcv.proto)) {
if (!port) p=msg->via1->port;
else
p=*port;
if (tcpconn_add_alias(NULL, msg->rcv.proto_reserved1, p,
msg->rcv.proto)!=0){
LM_WARN("tcp alias failed\n");
return E_UNSPEC;
}
}
return 1;
}
static int w_set_adv_address(struct sip_msg *msg, str *adv_addr)
{
LM_DBG("setting adv address = [%.*s]\n", adv_addr->len, adv_addr->s);
/* duplicate the advertised address into private memory */
if (adv_addr->len > msg->set_global_address.len) {
msg->set_global_address.s = pkg_realloc(msg->set_global_address.s,
adv_addr->len);
if (!msg->set_global_address.s) {
LM_ERR("out of pkg mem\n");
return E_OUT_OF_MEM;
}
}
memcpy(msg->set_global_address.s, adv_addr->s, adv_addr->len);
msg->set_global_address.len = adv_addr->len;
return 1;
}
static int w_set_adv_port(struct sip_msg *msg, str *adv_port)
{
LM_DBG("setting adv port '%.*s'\n", adv_port->len, adv_port->s);
/* duplicate the advertised port into private memory */
if (adv_port->len > msg->set_global_port.len) {
msg->set_global_port.s = pkg_realloc(msg->set_global_port.s,
adv_port->len);
if (!msg->set_global_port.s) {
LM_ERR("out of pkg mem\n");
return E_OUT_OF_MEM;
}
}
memcpy(msg->set_global_port.s, adv_port->s, adv_port->len);
msg->set_global_port.len = adv_port->len;
return 1;
}