Open IMS Core CSCFs: /tmp/snapshot20081012/ser_ims/modules/icscf/mod.c File Reference

static int icscf_mod_init ( void ) [static]

initialize twofish variables and tables (THIG)

Definition at line 332 of file mod.c.

References cdpb, ci, cscf_icid_value_count, cscf_icid_value_count_lock, fix_parameters(), I_get_capabilities(), i_hash_table_init(), I_NDS_get_trusted_domains(), icscf_db_bind(), icscf_db_url, icscf_hash_size, icscf_name_str, icscf_route_on_term_user_unknown, ki, load_cdp(), M_NAME, NO_SCRIPT, NULL, route_on_term_user_unknown_n, sl_reply, thig_key_and_cipher_init(), and tmb.

00333 {
00334     load_tm_f load_tm;
00335     load_cdp_f load_cdp;
00336     LOG(L_INFO,"INFO:"M_NAME":mod_init: Initialization of module\n");
00337     /* fix the parameters */
00338     if (!fix_parameters()) goto error;
00339 
00340     #ifdef WITH_IMS_PM
00341         ims_pm_init(icscf_name_str,ims_pm_node_type, ims_pm_logfile);
00342         ims_pm_init_icscf();
00343     #endif /* WITH_IMS_PM */
00344     
00345     cscf_icid_value_count = shm_malloc(sizeof(unsigned int));
00346     *cscf_icid_value_count = 0;
00347     cscf_icid_value_count_lock = lock_alloc();
00348     cscf_icid_value_count_lock = lock_init(cscf_icid_value_count_lock);
00349         
00350     /* load the send_reply function from sl module */
00351     sl_reply = find_export("sl_send_reply", 2, 0);
00352     if (!sl_reply) {
00353         LOG(L_ERR, "ERR"M_NAME":mod_init: This module requires sl module\n");
00354         goto error;
00355     }
00356     
00357     /* bind to the db module */
00358     if ( icscf_db_bind( icscf_db_url ) < 0 ) goto error;
00359     
00360     /* bind to the tm module */
00361     if (!(load_tm = (load_tm_f)find_export("load_tm",NO_SCRIPT,0))) {
00362         LOG(L_ERR, "ERR"M_NAME":mod_init: Can not import load_tm. This module requires tm module\n");
00363         goto error;
00364     }
00365     if (load_tm(&tmb) == -1)
00366         goto error;
00367 
00368     /* bind to the cdp module */
00369     if (!(load_cdp = (load_cdp_f)find_export("load_cdp",NO_SCRIPT,0))) {
00370         LOG(L_ERR, "ERR"M_NAME":mod_init: Can not import load_cdp. This module requires cdp module\n");
00371         goto error;
00372     }
00373     if (load_cdp(&cdpb) == -1)
00374         goto error;
00375 
00376     /* cache the trusted domain names and capabilities */
00377     I_NDS_get_trusted_domains();
00378     I_get_capabilities();
00379             
00380     if (!i_hash_table_init(icscf_hash_size)){
00381         LOG(L_ERR, "ERR"M_NAME":mod_init: Error initializing the Hash Table for stored S-CSCF lists\n");
00382         goto error;
00383     }   
00384 //  //TODO - only for S-CSCF - I-CSCF does not respond to request
00386 //  /* don't register response callback as we always set callback per transactions 
00387 //   *  and we're not interested in other responses */
00388 //  /*AAAAddResponseHandler(&CxAnswerHandler,0);*/
00389 //
00391     srand((unsigned) time(NULL));
00392     thig_key_and_cipher_init(&ki,&ci);
00393     LOG(L_INFO,"Twofish encryption ready\n");
00394     
00395     int route_no;
00396     /* try to fix the icscf_route_on_term_user_unknown route */
00397     if (icscf_route_on_term_user_unknown){
00398         route_no=route_get(&main_rt, icscf_route_on_term_user_unknown);
00399         if (route_no==-1){
00400             LOG(L_ERR, "ERR"M_NAME":mod_init: failed to fix route \"%s\": route_get() failed\n",
00401                     icscf_route_on_term_user_unknown);
00402             return -1;
00403         }
00404         if (main_rt.rlist[route_no]==0){
00405             LOG(L_ERR, "ERR"M_NAME":mod_init: icscf_route_on_term_user_unknown \"%s\" is empty / doesn't exist\n",
00406                     icscf_route_on_term_user_unknown);
00407         }
00408         route_on_term_user_unknown_n=route_no;
00409     }   
00410     
00411     return 0;
00412 error:
00413     return -1;
00414 }

static int icscf_mod_child_init ( int rank ) [static]

Definition at line 416 of file mod.c.

References icscf_db_capabilities_table, icscf_db_init(), icscf_db_nds_table, icscf_db_scscf_table, icscf_db_url, M_NAME, and process_no.

00417 {
00418     LOG(L_INFO,"INFO:"M_NAME":mod_init: Initialization of module in child [%d] %s \n",
00419         rank,pt[process_no].desc);
00420     /* don't do anything for main process and TCP manager process */
00421     if ( rank == PROC_MAIN || rank == PROC_TCP_MAIN )
00422         return 0;
00423     
00424     /* db child init */
00425     icscf_db_init( icscf_db_url, 
00426         icscf_db_nds_table,
00427         icscf_db_scscf_table,
00428         icscf_db_capabilities_table);
00429         
00430     return 0;
00431 }

static void icscf_mod_destroy ( void ) [static]

Definition at line 433 of file mod.c.

References i_hash_table_destroy(), and M_NAME.

00434 {
00435     LOG(L_INFO,"INFO:"M_NAME":mod_destroy: child exit\n");
00436     i_hash_table_destroy();
00437     #ifdef WITH_IMS_PM
00438         ims_pm_destroy();   
00439     #endif /* WITH_IMS_PM */        
00440 }

static int fix_parameters ( ) [static]

Definition at line 266 of file mod.c.

References cscf_icid_gen_addr, cscf_icid_gen_addr_str, cscf_icid_value_prefix, cscf_icid_value_prefix_str, cscf_orig_ioi, cscf_orig_ioi_str, cscf_term_ioi, cscf_term_ioi_str, icscf_default_realm, icscf_default_realm_str, icscf_forced_hss_peer, icscf_forced_hss_peer_str, icscf_name, icscf_name_str, icscf_thig_host, icscf_thig_host_str, icscf_thig_name, icscf_thig_name_str, icscf_thig_param, icscf_thig_param_str, icscf_thig_path_str, icscf_thig_port, icscf_thig_port_str, icscf_thig_rr_str, M_NAME, s_path_e, s_path_s, s_rr_e, s_rr_s, and STR_APPEND.

Referenced by icscf_mod_init(), and mod_init().

00267 {
00268     icscf_name_str.s = icscf_name;
00269     icscf_name_str.len = strlen(icscf_name);
00270     
00271     icscf_thig_name_str.s = icscf_thig_name;
00272     icscf_thig_name_str.len = strlen(icscf_thig_name);
00273 
00274     icscf_thig_host_str.s = icscf_thig_host;
00275     icscf_thig_host_str.len = strlen(icscf_thig_host);
00276     
00277     icscf_thig_port_str.s = pkg_malloc(12);
00278     if (!icscf_thig_port_str.s){
00279         LOG(L_ERR,"ERR:"M_NAME":fix_parameters: error allocating %d bytes\n",12);
00280         return 0;
00281     }
00282     sprintf(icscf_thig_port_str.s,"%d",icscf_thig_port);
00283     icscf_thig_port_str.len = strlen(icscf_thig_port_str.s);
00284 
00285     
00286     icscf_thig_param_str.s = icscf_thig_param;
00287     icscf_thig_param_str.len = strlen(icscf_thig_param);
00288     
00289     icscf_thig_path_str.len = s_path_s.len+icscf_thig_name_str.len+s_path_e.len;
00290     icscf_thig_path_str.s = pkg_malloc(icscf_thig_path_str.len);
00291     if (!icscf_thig_path_str.s){
00292         LOG(L_ERR,"ERR:"M_NAME":fix_parameters: error allocating %d bytes\n",icscf_thig_path_str.len);
00293         return 0;
00294     }
00295     icscf_thig_path_str.len = 0;
00296     STR_APPEND(icscf_thig_path_str,s_path_s);
00297     STR_APPEND(icscf_thig_path_str,icscf_thig_name_str);
00298     STR_APPEND(icscf_thig_path_str,s_path_e);
00299 
00300     icscf_thig_rr_str.len = s_rr_s.len+icscf_thig_name_str.len+s_rr_e.len;
00301     icscf_thig_rr_str.s = pkg_malloc(icscf_thig_rr_str.len);
00302     if (!icscf_thig_rr_str.s){
00303         LOG(L_ERR,"ERR:"M_NAME":fix_parameters: error allocating %d bytes\n",icscf_thig_rr_str.len);
00304         return 0;
00305     }
00306     icscf_thig_rr_str.len = 0;
00307     STR_APPEND(icscf_thig_rr_str,s_rr_s);
00308     STR_APPEND(icscf_thig_rr_str,icscf_thig_name_str);
00309     STR_APPEND(icscf_thig_rr_str,s_rr_e);
00310                 
00311     icscf_forced_hss_peer_str.s = icscf_forced_hss_peer;
00312     icscf_forced_hss_peer_str.len = strlen(icscf_forced_hss_peer);
00313 
00314     icscf_default_realm_str.s = icscf_default_realm; 
00315     icscf_default_realm_str.len = strlen(icscf_default_realm);
00316 
00317     cscf_icid_value_prefix_str.s = cscf_icid_value_prefix;
00318     cscf_icid_value_prefix_str.len = strlen(cscf_icid_value_prefix);
00319 
00320     cscf_icid_gen_addr_str.s = cscf_icid_gen_addr;
00321     cscf_icid_gen_addr_str.len = strlen(cscf_icid_gen_addr);
00322     
00323     cscf_orig_ioi_str.s = cscf_orig_ioi;
00324     cscf_orig_ioi_str.len = strlen(cscf_orig_ioi);
00325     
00326     cscf_term_ioi_str.s = cscf_term_ioi;
00327     cscf_term_ioi_str.len = strlen(cscf_term_ioi);
00328     
00329     return 1;
00330 }

int I_add_p_charging_vector	(	struct sip_msg *	msg,
		char *	str1,
		char *	str2
	)

Inserts the P-Charging-Vector header P-Charging-Vector:.

Parameters:

	msg	- the SIP message to add to
	str1	- not used
	str2	- not used

Returns:: CSCF_RETURN_TRUE if ok or CSCF_RETURN_FALSE on error

Definition at line 454 of file mod.c.

References cscf_add_p_charging_vector().

00455 {
00456     return cscf_add_p_charging_vector(msg);
00457 }

char* icscf_name = "icscf.open-ims.test"

parameters storage name of the I-CSCF

Definition at line 89 of file mod.c.

Referenced by fix_parameters().

char* icscf_thig_name = "thig@icscf.open-ims.test"

name of the I-CSCF for THIG

Definition at line 90 of file mod.c.

Referenced by fix_parameters().

char* icscf_thig_host = "127.0.0.1"

host for THIG

Definition at line 91 of file mod.c.

Referenced by fix_parameters().

int icscf_thig_port = 5060

port for THIG

Definition at line 92 of file mod.c.

Referenced by fix_parameters(), and I_THIG_decrypt_header().

char* icscf_thig_param = "thigenc"

THIG parameter name.

Definition at line 93 of file mod.c.

Referenced by fix_parameters().

char* icscf_db_url = "mysql://icscf:heslo@localhost/hssdata"

DB URL.

Definition at line 95 of file mod.c.

Referenced by icscf_db_bind(), icscf_db_check_init(), icscf_mod_child_init(), and icscf_mod_init().

char* icscf_db_nds_table = "nds_trusted_domains"

NDS table in DB.

Definition at line 96 of file mod.c.

Referenced by icscf_db_check_init(), and icscf_mod_child_init().

char* icscf_db_scscf_table = "s_cscf"

S-CSCF table in db.

Definition at line 97 of file mod.c.

Referenced by icscf_db_check_init(), and icscf_mod_child_init().

char* icscf_db_capabilities_table = "s_cscf_capabilities"

S-CSCF capabilities table in db.

Definition at line 98 of file mod.c.

Referenced by icscf_db_check_init(), and icscf_mod_child_init().

char* icscf_forced_hss_peer = ""

Forced Diameter Peer FQDN (HSS).

Definition at line 100 of file mod.c.

Referenced by fix_parameters().

int icscf_hash_size = 128

size of the hash for storing S-CSCF lists

Definition at line 102 of file mod.c.

Referenced by icscf_mod_init().

char* icscf_default_realm = "open-ims.test"

default realm for LIR if none available

Definition at line 104 of file mod.c.

Referenced by fix_parameters().

char* icscf_route_on_term_user_unknown = 0 [static]

script route to run for Initial request after HSS replies with User Unknown to the LIR for terminating user (default none)

Definition at line 106 of file mod.c.

Referenced by icscf_mod_init().

int route_on_term_user_unknown_n = -1

script route number for Initial request processing after HSS says User Unknown

Definition at line 107 of file mod.c.

Referenced by I_LIA(), and icscf_mod_init().

char* cscf_icid_value_prefix

hexadecimal prefix for the icid-value - must be unique on each node

Definition at line 2715 of file sip.c.

Referenced by fix_parameters().

unsigned int* cscf_icid_value_count

to keep the number of generated icid-values

Definition at line 2716 of file sip.c.

Referenced by icscf_mod_init(), and mod_init().

gen_lock_t* cscf_icid_value_count_lock

to lock acces on the above counter

Definition at line 2717 of file sip.c.

Referenced by icscf_mod_init(), and mod_init().

char* cscf_icid_gen_addr

address of the generator of the icid-value

Definition at line 2718 of file sip.c.

Referenced by fix_parameters().

char* cscf_orig_ioi

name of the Originating network

Definition at line 2719 of file sip.c.

Referenced by fix_parameters().

char* cscf_term_ioi

name of the Terminating network

Definition at line 2720 of file sip.c.

Referenced by fix_parameters().

str icscf_name_str

fixed name of the I-CSCF

Definition at line 119 of file mod.c.

Referenced by fix_parameters(), and icscf_mod_init().

str icscf_thig_name_str

fixed name of the I-CSCF for THIG

Definition at line 120 of file mod.c.

Referenced by fix_parameters().

str icscf_thig_host_str

fixed host for THIG

Definition at line 121 of file mod.c.

Referenced by fix_parameters(), I_THIG_decrypt_header(), and I_THIG_encrypt_header().

str icscf_thig_port_str

fixed port for THIG

Definition at line 122 of file mod.c.

Referenced by fix_parameters(), and I_THIG_encrypt_header().

str icscf_thig_param_str

fixed THIG parameter name

Definition at line 123 of file mod.c.

Referenced by fix_parameters(), I_THIG_decrypt_header(), and I_THIG_encrypt_header().

str icscf_thig_path_str

fixed Path header

Definition at line 124 of file mod.c.

Referenced by fix_parameters(), and I_THIG_add_Path().

str icscf_thig_rr_str

fixed Record-route header

Definition at line 125 of file mod.c.

Referenced by fix_parameters(), and I_THIG_add_RR().

str icscf_default_realm_str

fixed default realm

Definition at line 126 of file mod.c.

Referenced by fix_parameters(), and I_LIR().

str icscf_forced_hss_peer_str

FQDN of the Diameter peer to send requests to.

Definition at line 127 of file mod.c.

Referenced by Cx_LIR(), Cx_UAR(), and fix_parameters().

str cscf_icid_value_prefix_str

fixed hexadecimal prefix for the icid-value - must be unique on each node

Definition at line 2722 of file sip.c.

Referenced by fix_parameters().

str cscf_icid_gen_addr_str

fixed address of the generator of the icid-value

Definition at line 2723 of file sip.c.

Referenced by fix_parameters().

str cscf_orig_ioi_str

fixed name of the Originating network

Definition at line 2724 of file sip.c.

Referenced by fix_parameters().

str cscf_term_ioi_str

fixed name of the Terminating network

Definition at line 2725 of file sip.c.

Referenced by fix_parameters().

keyInstance ki

key information, including tables

Definition at line 135 of file mod.c.

Referenced by icscf_mod_init(), thig_decrypt(), thig_encrypt(), and thig_key_and_cipher_init().

cipherInstance ci

keeps mode (ECB, CBC) and IV

Definition at line 136 of file mod.c.

Referenced by icscf_mod_init(), S_assign_server(), save_location(), thig_decrypt(), thig_encrypt(), thig_key_and_cipher_init(), and update_contacts().

cmd_export_t icscf_cmds[] [static]

Initial value:

{
    {"I_NDS_check_trusted",         I_NDS_check_trusted,        0, 0, REQUEST_ROUTE}, 
    {"I_NDS_is_trusted",            I_NDS_is_trusted,           0, 0, REQUEST_ROUTE}, 
    {"I_NDS_strip_headers",         I_NDS_strip_headers,        0, 0, REQUEST_ROUTE}, 

    {"I_trans_in_processing",       I_trans_in_processing,      0, 0, REQUEST_ROUTE}, 
    {"I_UAR",                       I_UAR,                      1, 0, REQUEST_ROUTE}, 
    {"I_LIR",                       I_LIR,                      0, 0, REQUEST_ROUTE},   
    {"I_scscf_select",              I_scscf_select,             1, 0, REQUEST_ROUTE|FAILURE_ROUTE}, 
    {"I_scscf_drop",                I_scscf_drop,               0, 0, REQUEST_ROUTE|ONREPLY_ROUTE|FAILURE_ROUTE}, 
    
    {"I_THIG_add_Path",             I_THIG_add_Path,            0, 0, REQUEST_ROUTE},
    {"I_THIG_add_RR",               I_THIG_add_RR,              0, 0, REQUEST_ROUTE},
    {"I_THIG_encrypt_header",       I_THIG_encrypt_header,      1, 0, REQUEST_ROUTE|ONREPLY_ROUTE},
    {"I_THIG_encrypt_all_headers",  I_THIG_encrypt_all_headers, 0, 0, REQUEST_ROUTE|ONREPLY_ROUTE},
    {"I_THIG_decrypt_header",       I_THIG_decrypt_header,      1, 0, REQUEST_ROUTE|ONREPLY_ROUTE},
    {"I_THIG_decrypt_all_headers",  I_THIG_decrypt_all_headers, 0, 0, REQUEST_ROUTE|ONREPLY_ROUTE},
    
    {"I_add_p_charging_vector",     I_add_p_charging_vector,    0, 0, REQUEST_ROUTE},
    
    {"I_originating",               I_originating,              0, 0, REQUEST_ROUTE},
    
    {0, 0, 0, 0, 0}
}

Exported functions.

I_NDS_check_trusted() - check if the message comes from a trusted domain
I_NDS_is_trusted() - check if the message comes from a trusted domain
I_NDS_strip_headers() - strip untrusted headers for requests coming from untrusted domains

I_trans_in_processing() - if this transaction is already in processing
I_UAR() - trigger an UAR and fwd the message based on the UAA
I_LIR() - trigger an LIR and fwd the message based on the UAA
I_scscf_select() - select the next unused S-CSCF from the list for this request
I_scscf_drop() - drop the list of S-CSCFs for this request

I_THIG_add_Path() - add Path header for THIG encryption
I_THIG_add_RR() - add Record-Route header for THIG encryption
I_THIG_encrypt_header() - encrypt a specific header for THIG
I_THIG_encrypt_all_headers() - encrypt all sensitive headers for THIG
I_THIG_decrypt_header() - decrypt a specific header for THIG
I_THIG_decrypt_all_headers() - decrypt all sensitive headers for THIG

icid_value_prefix - prefix for the ICID in the P-Charging-Vector header
icid_gen_addr - ICID Gen Addr. in the P-Charging-Vector header
orig_ioi - Originating IOI in the P-Charging-Vector header
term_ioi - Terminating IOI in the P-Charging-Vector header

Definition at line 169 of file mod.c.

param_export_t icscf_params[] [static]

Initial value:

{ 
    {"name",                    STR_PARAM, &icscf_name},
    {"db_url",                  STR_PARAM, &icscf_db_url},
    {"db_nds_table",            STR_PARAM, &icscf_db_nds_table},
    {"db_scscf_table",          STR_PARAM, &icscf_db_scscf_table},
    {"db_capabilities_table",   STR_PARAM, &icscf_db_capabilities_table},
    {"forced_hss_peer",         STR_PARAM, &icscf_forced_hss_peer},
    {"hash_size",               INT_PARAM, &icscf_hash_size},   

    {"default_realm",           STR_PARAM, &icscf_default_realm},   

    {"thig_name",               STR_PARAM, &icscf_thig_name},
    {"thig_host",               STR_PARAM, &icscf_thig_host},
    {"thig_port",               INT_PARAM, &icscf_thig_port},
    {"thig_param",              STR_PARAM, &icscf_thig_param},

    {"icid_value_prefix",       STR_PARAM, &cscf_icid_value_prefix},
    {"icid_gen_addr",           STR_PARAM, &cscf_icid_gen_addr},
    {"orig_ioi",                STR_PARAM, &cscf_orig_ioi},
    {"term_ioi",                STR_PARAM, &cscf_term_ioi},
    
    {"route_on_term_user_unknown",  STR_PARAM, &icscf_route_on_term_user_unknown},




 

    {0,0,0} 
}

Exported parameters.

name - name of the I-CSCF
db_url - URL of the database containing NDS and S-CSCF information
db_nds_table - name of the table containing the NDS information
db_scscf_table - name of the table containing the S-CSCF information
db_capabilities_table - name of the table containing the S-CSCF capabilities information

thig_name - name of the I-CSCF with THIG
thig_host - IP address of the I-CSCF with THIG
thig_port - port of the I-CSCF with THIG
thig_param - name of the URI parameter to encode data into

Definition at line 207 of file mod.c.

struct module_exports exports

Initial value:

 {
    "icscf", 
    icscf_cmds,
    0,
    icscf_params,
    
    icscf_mod_init,     
    0,              
    icscf_mod_destroy,  
    0,              
    icscf_mod_child_init    
}

module exports

Definition at line 239 of file mod.c.

int(*) sl_reply(struct sip_msg *_msg, char *_str1, char *_str2)

link to the stateless reply function in sl module

Definition at line 254 of file mod.c.

Referenced by I_NDS_check_trusted(), icscf_mod_init(), mod_init(), P_422_session_expires(), and S_422_session_expires().

struct tm_binds tmb

Structure with pointers to tm funcs.

Definition at line 257 of file mod.c.

struct cdp_binds cdpb

Structure with pointers to cdp funcs.

Definition at line 258 of file mod.c.

str s_path_s = {"Path: <sip:",11} [static]

Definition at line 261 of file mod.c.

Referenced by fix_parameters().

str s_path_e = {";lr>\r\n",6} [static]

Definition at line 262 of file mod.c.

Referenced by fix_parameters().

str s_rr_s = {"Record-Route: <sip:",19} [static]

Definition at line 263 of file mod.c.

Referenced by fix_parameters().

str s_rr_e = {";lr>\r\n",6} [static]

Definition at line 264 of file mod.c.

Referenced by fix_parameters().

mod.c File Reference

Detailed Description

Functions

Variables

Function Documentation

Variable Documentation


Functions
static MODULE_VERSION int	icscf_mod_init (void)
static int	icscf_mod_child_init (int rank)
static void	icscf_mod_destroy (void)
static int	fix_parameters ()
int	I_add_p_charging_vector (struct sip_msg msg, char str1, char *str2)
	Inserts the P-Charging-Vector header P-Charging-Vector:.
Variables
char *	icscf_name = "icscf.open-ims.test"
	parameters storage name of the I-CSCF
char *	icscf_thig_name = "thig@icscf.open-ims.test"
	name of the I-CSCF for THIG
char *	icscf_thig_host = "127.0.0.1"
	host for THIG
int	icscf_thig_port = 5060
	port for THIG
char *	icscf_thig_param = "thigenc"
	THIG parameter name.
char *	icscf_db_url = "mysql://icscf:heslo@localhost/hssdata"
	DB URL.
char *	icscf_db_nds_table = "nds_trusted_domains"
	NDS table in DB.
char *	icscf_db_scscf_table = "s_cscf"
	S-CSCF table in db.
char *	icscf_db_capabilities_table = "s_cscf_capabilities"
	S-CSCF capabilities table in db.
char *	icscf_forced_hss_peer = ""
	Forced Diameter Peer FQDN (HSS).
int	icscf_hash_size = 128
	size of the hash for storing S-CSCF lists
char *	icscf_default_realm = "open-ims.test"
	default realm for LIR if none available
static char *	icscf_route_on_term_user_unknown = 0
	script route to run for Initial request after HSS replies with User Unknown to the LIR for terminating user (default none)
int	route_on_term_user_unknown_n = -1
	script route number for Initial request processing after HSS says User Unknown
char *	cscf_icid_value_prefix
	hexadecimal prefix for the icid-value - must be unique on each node
unsigned int *	cscf_icid_value_count
	to keep the number of generated icid-values
gen_lock_t *	cscf_icid_value_count_lock
	to lock acces on the above counter
char *	cscf_icid_gen_addr
	address of the generator of the icid-value
char *	cscf_orig_ioi
	name of the Originating network
char *	cscf_term_ioi
	name of the Terminating network
str	icscf_name_str
	fixed name of the I-CSCF
str	icscf_thig_name_str
	fixed name of the I-CSCF for THIG
str	icscf_thig_host_str
	fixed host for THIG
str	icscf_thig_port_str
	fixed port for THIG
str	icscf_thig_param_str
	fixed THIG parameter name
str	icscf_thig_path_str
	fixed Path header
str	icscf_thig_rr_str
	fixed Record-route header
str	icscf_default_realm_str
	fixed default realm
str	icscf_forced_hss_peer_str
	FQDN of the Diameter peer to send requests to.
str	cscf_icid_value_prefix_str
	fixed hexadecimal prefix for the icid-value - must be unique on each node
str	cscf_icid_gen_addr_str
	fixed address of the generator of the icid-value
str	cscf_orig_ioi_str
	fixed name of the Originating network
str	cscf_term_ioi_str
	fixed name of the Terminating network
keyInstance	ki
	key information, including tables
cipherInstance	ci
	keeps mode (ECB, CBC) and IV
static cmd_export_t	icscf_cmds []
	Exported functions.
static param_export_t	icscf_params []
	Exported parameters.
module_exports	exports
	module exports
int(*)	sl_reply (struct sip_msg _msg, char _str1, char *_str2)
	link to the stateless reply function in sl module
tm_binds	tmb
	Structure with pointers to tm funcs.
cdp_binds	cdpb
	Structure with pointers to cdp funcs.
static str	s_path_s = {"Path: <sip:",11}
static str	s_path_e = {";lr>\r\n",6}
static str	s_rr_s = {"Record-Route: <sip:",19}
static str	s_rr_e = {";lr>\r\n",6}