make point codes configurable by SCCP address book

In the vty config, use the SCCP address book to configure the local and remote
SCCP addresses. Add VTY commands to set the remote SCCP addresses by name,
derive the ss7 instance from these addresses:

  cs7 instance 1
   point-code 0.23.0
   sccp-address msc
    point-code 0.0.1
   sccp-address sgsn
    point-code 0.0.2
  hnbgw
   iucs
    remote-addr msc
   iups
    remote-addr sgsn

Enforce that both IuCS and IuPS use the same ss7 instance. In the future, we
may add the feature to use two separate instances.

Depends: libosmo-sccp I75c67d289693f1c2a049ac61cf2b2097d6e5687d,
         Ie1aedd7894acd69ddc887cd65a8a0df4b888838c,
         I85b46269dbe7909e52873ace3f720f6292a4516c

Change-Id: I33a7ba11eb7c2d9a5dc74d10fb0cf04bf664477b
This commit is contained in:
Neels Hofmeyr 2017-07-31 13:13:24 +02:00
parent 5e0292a641
commit ecbdc5cb06
6 changed files with 120 additions and 100 deletions

View File

@ -116,10 +116,8 @@ struct hnb_gw {
/*! The UDP port where we receive multiplexed CS user
* plane traffic from HNBs */
uint16_t iuh_cs_mux_port;
const char *iucs_remote_ip;
uint16_t iucs_remote_port;
const char *iups_remote_ip;
uint16_t iups_remote_port;
const char *iucs_remote_addr_name;
const char *iups_remote_addr_name;
uint16_t rnc_id;
bool hnbap_allow_tmsi;
} config;
@ -134,11 +132,11 @@ struct hnb_gw {
/* currently active CN links for CS and PS */
struct {
struct osmo_sccp_instance *instance;
struct osmo_sccp_instance *client;
struct hnbgw_cnlink *cnlink;
struct osmo_sccp_addr local_addr;
struct osmo_sccp_addr remote_addr_cs;
struct osmo_sccp_addr remote_addr_ps;
struct osmo_sccp_addr iucs_remote_addr;
struct osmo_sccp_addr iups_remote_addr;
} sccp;
};

View File

@ -2,5 +2,4 @@
#include <osmocom/iuh/hnbgw.h>
int hnbgw_cnlink_init(struct hnb_gw *gw, const char *stp_host, uint16_t stp_port,
const char *local_ip, uint32_t local_pc);
int hnbgw_cnlink_init(struct hnb_gw *gw, const char *stp_host, uint16_t stp_port, const char *local_ip);

View File

@ -79,14 +79,6 @@ static struct hnb_gw *hnb_gw_create(void *ctx)
gw->config.iuh_local_ip = talloc_strdup(gw, HNBGW_LOCAL_IP_DEFAULT);
gw->config.iuh_local_port = IUH_DEFAULT_SCTP_PORT;
gw->config.iucs_remote_ip = talloc_strdup(gw,
HNBGW_IUCS_REMOTE_IP_DEFAULT);
gw->config.iucs_remote_port = M3UA_PORT;
gw->config.iups_remote_ip = talloc_strdup(gw,
HNBGW_IUPS_REMOTE_IP_DEFAULT);
gw->config.iups_remote_port = M3UA_PORT;
gw->next_ue_ctx_id = 23;
INIT_LLIST_HEAD(&gw->hnb_list);
INIT_LLIST_HEAD(&gw->ue_list);
@ -465,6 +457,7 @@ int main(int argc, char **argv)
vty_info.copyright = osmo_hnbgw_copyright;
vty_init(&vty_info);
osmo_ss7_vty_init_asp(tall_hnb_ctx);
hnbgw_vty_init(g_hnb_gw, tall_hnb_ctx);
logging_vty_add_cmds(&hnbgw_log_info);
@ -501,24 +494,13 @@ int main(int argc, char **argv)
ranap_set_log_area(DRANAP);
OSMO_ASSERT(g_hnb_gw->config.iucs_remote_ip);
rc = hnbgw_cnlink_init(g_hnb_gw,
g_hnb_gw->config.iucs_remote_ip,
g_hnb_gw->config.iucs_remote_port,
"127.0.0.5" /* FIXME: configurable */,
23 /* FIXME: configurable */);
"127.0.0.1", M3UA_PORT, "127.0.0.5" /* FIXME: configurable */);
if (rc < 0) {
LOGP(DMAIN, LOGL_ERROR, "Failed to initialize SCCP link to CN\n");
exit(1);
}
osmo_sccp_make_addr_pc_ssn(&g_hnb_gw->sccp.remote_addr_cs,
1 /* FIXME: configurable */,
OSMO_SCCP_SSN_RANAP);
osmo_sccp_make_addr_pc_ssn(&g_hnb_gw->sccp.remote_addr_ps,
2 /* FIXME: configurable */,
OSMO_SCCP_SSN_RANAP);
OSMO_ASSERT(g_hnb_gw->config.iuh_local_ip);
LOGP(DMAIN, LOGL_NOTICE, "Listening for Iuh at %s %d\n",
g_hnb_gw->config.iuh_local_ip,

View File

@ -63,8 +63,8 @@ static void cnlink_trafc_cb(void *data)
{
struct hnb_gw *gw = data;
transmit_rst(gw, RANAP_CN_DomainIndicator_cs_domain, &gw->sccp.remote_addr_cs);
transmit_rst(gw, RANAP_CN_DomainIndicator_ps_domain, &gw->sccp.remote_addr_ps);
transmit_rst(gw, RANAP_CN_DomainIndicator_cs_domain, &gw->sccp.iucs_remote_addr);
transmit_rst(gw, RANAP_CN_DomainIndicator_ps_domain, &gw->sccp.iups_remote_addr);
hnbgw_cnlink_change_state(gw->sccp.cnlink, CNLINK_S_EST_RST_TX_WAIT_ACK);
/* The spec states that we should abandon after a configurable
* number of times. We decide to simply continue trying */
@ -251,12 +251,12 @@ static int classify_cn_remote_addr(const struct hnb_gw *gw,
const struct osmo_sccp_addr *cn_remote_addr,
bool *is_ps)
{
if (pc_and_ssn_match(cn_remote_addr, &gw->sccp.remote_addr_cs)) {
if (pc_and_ssn_match(cn_remote_addr, &gw->sccp.iucs_remote_addr)) {
if (is_ps)
*is_ps = false;
return 0;
}
if (pc_and_ssn_match(cn_remote_addr, &gw->sccp.remote_addr_ps)) {
if (pc_and_ssn_match(cn_remote_addr, &gw->sccp.iups_remote_addr)) {
if (is_ps)
*is_ps = true;
return 0;
@ -401,27 +401,90 @@ static int sccp_sap_up(struct osmo_prim_hdr *oph, void *ctx)
return 0;
}
int hnbgw_cnlink_init(struct hnb_gw *gw, const char *stp_host, uint16_t stp_port,
const char *local_ip, uint32_t local_pc)
static bool addr_has_pc_and_ssn(const struct osmo_sccp_addr *addr)
{
struct hnbgw_cnlink *cnlink;
int rc;
if (!(addr->presence & OSMO_SCCP_ADDR_T_SSN))
return false;
if (!(addr->presence & OSMO_SCCP_ADDR_T_PC))
return false;
return true;
}
OSMO_ASSERT(!gw->sccp.instance);
OSMO_ASSERT(!gw->sccp.cnlink);
static int resolve_addr_name(struct osmo_sccp_addr *dest, struct osmo_ss7_instance **ss7,
const char *addr_name, const char *label)
{
struct osmo_ss7_instance *ss7_tmp;
gw->sccp.instance = osmo_sccp_simple_client(gw, "OsmoHNBGW", local_pc,
OSMO_SS7_ASP_PROT_M3UA, 0, local_ip,
stp_port, stp_host);
if (!gw->sccp.instance) {
LOGP(DMAIN, LOGL_ERROR, "Failed to init SCCP Instance\n");
if (!addr_name) {
LOGP(DMAIN, LOGL_ERROR, "Missing config: %s remote-addr\n", label);
return -1;
}
LOGP(DRUA, LOGL_DEBUG, "SCCP uplink to STP: %s %u\n", stp_host, stp_port);
ss7_tmp = osmo_sccp_addr_by_name(dest, addr_name);
if (!ss7_tmp) {
LOGP(DMAIN, LOGL_ERROR, "%s remote addr: no such SCCP address book entry: '%s'\n",
label, addr_name);
return -1;
}
osmo_sccp_make_addr_pc_ssn(&gw->sccp.local_addr, local_pc,
OSMO_SCCP_SSN_RANAP);
if (*ss7 && (*ss7 != ss7_tmp)) {
LOGP(DMAIN, LOGL_ERROR, "IuCS and IuPS cannot be served from separate CS7 instances,"
" cs7 instance %d != %d\n", (*ss7)->cfg.id, ss7_tmp->cfg.id);
return -1;
}
*ss7 = ss7_tmp;
osmo_sccp_addr_set_ssn(dest, OSMO_SCCP_SSN_RANAP);
if (!addr_has_pc_and_ssn(dest)) {
LOGP(DMAIN, LOGL_ERROR, "Invalid/incomplete %s remote-addr: %s\n",
label, osmo_sccp_addr_name(dest));
return -1;
}
LOGP(DRANAP, LOGL_NOTICE, "Remote %s SCCP addr: %s\n",
label, osmo_sccp_addr_name(*ss7, dest));
return 0;
}
int hnbgw_cnlink_init(struct hnb_gw *gw, const char *stp_host, uint16_t stp_port, const char *local_ip)
{
struct hnbgw_cnlink *cnlink;
struct osmo_ss7_instance *ss7;
uint32_t local_pc;
int rc;
OSMO_ASSERT(!gw->sccp.client);
OSMO_ASSERT(!gw->sccp.cnlink);
ss7 = NULL;
if (resolve_addr_name(&gw->sccp.iucs_remote_addr, &ss7,
gw->config.iucs_remote_addr_name, "IuCS"))
return -1;
if (resolve_addr_name(&gw->sccp.iups_remote_addr, &ss7,
gw->config.iups_remote_addr_name, "IuPS"))
return -1;
if (!osmo_ss7_pc_is_valid(ss7->cfg.primary_pc)) {
LOGP(DMAIN, LOGL_ERROR, "IuCS/IuPS uplink cannot be setup: CS7 instance %d has no point-code set\n",
ss7->cfg.id);
return -1;
}
local_pc = ss7->cfg.primary_pc;
osmo_sccp_make_addr_pc_ssn(&gw->sccp.local_addr, local_pc, OSMO_SCCP_SSN_RANAP);
LOGP(DRANAP, LOGL_NOTICE, "M3UA uplink to STP: %s %u\n", stp_host, stp_port);
LOGP(DRANAP, LOGL_NOTICE, "Local SCCP addr: %s\n", osmo_sccp_addr_name(ss7, &gw->sccp.local_addr));
gw->sccp.client = osmo_sccp_simple_client_on_ss7_id(gw, ss7->cfg.id, "OsmoHNBGW",
local_pc, OSMO_SS7_ASP_PROT_M3UA,
0, local_ip, stp_port, stp_host);
if (!gw->sccp.client) {
LOGP(DMAIN, LOGL_ERROR, "Failed to init SCCP Client\n");
return -1;
}
cnlink = talloc_zero(gw, struct hnbgw_cnlink);
cnlink->gw = gw;
@ -430,10 +493,8 @@ int hnbgw_cnlink_init(struct hnb_gw *gw, const char *stp_host, uint16_t stp_port
cnlink->T_RafC.data = gw;
cnlink->next_conn_id = 1000;
cnlink->sccp_user = osmo_sccp_user_bind_pc(gw->sccp.instance,
"OsmoHNBGW",
sccp_sap_up, OSMO_SCCP_SSN_RANAP,
gw->sccp.local_addr.pc);
cnlink->sccp_user = osmo_sccp_user_bind_pc(gw->sccp.client, "OsmoHNBGW", sccp_sap_up,
OSMO_SCCP_SSN_RANAP, gw->sccp.local_addr.pc);
if (!cnlink->sccp_user) {
LOGP(DMAIN, LOGL_ERROR, "Failed to init SCCP User\n");
return -1;

View File

@ -188,11 +188,11 @@ static int rua_to_scu(struct hnb_context *hnb,
switch (cN_DomainIndicator) {
case RUA_CN_DomainIndicator_cs_domain:
remote_addr = &hnb->gw->sccp.remote_addr_cs;
remote_addr = &hnb->gw->sccp.iucs_remote_addr;
is_ps = false;
break;
case RUA_CN_DomainIndicator_ps_domain:
remote_addr = &hnb->gw->sccp.remote_addr_ps;
remote_addr = &hnb->gw->sccp.iups_remote_addr;
is_ps = true;
break;
default:

View File

@ -90,7 +90,6 @@ int hnbgw_vty_go_parent(struct vty *vty)
vty->node = HNBGW_NODE;
vty->index = NULL;
break;
default:
case HNBGW_NODE:
vty->node = CONFIG_NODE;
vty->index = NULL;
@ -99,6 +98,9 @@ int hnbgw_vty_go_parent(struct vty *vty)
vty->node = ENABLE_NODE;
vty->index = NULL;
break;
default:
osmo_ss7_vty_go_parent(vty);
break;
}
return vty->node;
@ -182,37 +184,23 @@ DEFUN(cfg_hnbgw_iuh_hnbap_allow_tmsi, cfg_hnbgw_iuh_hnbap_allow_tmsi_cmd,
return CMD_SUCCESS;
}
DEFUN(cfg_hnbgw_iucs_remote_ip, cfg_hnbgw_iucs_remote_ip_cmd, "remote-ip A.B.C.D",
"Address to establish IuCS core network link to\n"
"Remote IuCS IP address (default: " HNBGW_IUCS_REMOTE_IP_DEFAULT ")")
DEFUN(cfg_hnbgw_iucs_remote_addr,
cfg_hnbgw_iucs_remote_addr_cmd,
"remote-addr NAME",
"SCCP address to send IuCS to (MSC)\n"
"SCCP address book entry name (see 'cs7-instance')\n")
{
talloc_free((void*)g_hnb_gw->config.iucs_remote_ip);
g_hnb_gw->config.iucs_remote_ip = talloc_strdup(tall_hnb_ctx, argv[0]);
g_hnb_gw->config.iucs_remote_addr_name = talloc_strdup(g_hnb_gw, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_hnbgw_iucs_remote_port, cfg_hnbgw_iucs_remote_port_cmd, "remote-port <1-65535>",
"Remote port to establish IuCS core network link to\n"
"Remote IuCS port (default: 14001)")
DEFUN(cfg_hnbgw_iups_remote_addr,
cfg_hnbgw_iups_remote_addr_cmd,
"remote-addr NAME",
"SCCP address to send IuPS to (SGSN)\n"
"SCCP address book entry name (see 'cs7-instance')\n")
{
g_hnb_gw->config.iucs_remote_port = atoi(argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_hnbgw_iups_remote_ip, cfg_hnbgw_iups_remote_ip_cmd, "remote-ip A.B.C.D",
"Address to establish IuPS core network link to\n"
"Remote IuPS IP address (default: " HNBGW_IUPS_REMOTE_IP_DEFAULT ")")
{
talloc_free((void*)g_hnb_gw->config.iups_remote_ip);
g_hnb_gw->config.iups_remote_ip = talloc_strdup(tall_hnb_ctx, argv[0]);
return CMD_SUCCESS;
}
DEFUN(cfg_hnbgw_iups_remote_port, cfg_hnbgw_iups_remote_port_cmd, "remote-port <1-65535>",
"Remote port to establish IuPS core network link to\n"
"Remote IuPS port (default: 14001)")
{
g_hnb_gw->config.iups_remote_port = atoi(argv[0]);
g_hnb_gw->config.iups_remote_addr_name = talloc_strdup(g_hnb_gw, argv[0]);
return CMD_SUCCESS;
}
@ -248,15 +236,12 @@ static int config_write_hnbgw_iucs(struct vty *vty)
const char *addr;
uint16_t port;
if (!g_hnb_gw->config.iucs_remote_addr_name)
return CMD_SUCCESS;
vty_out(vty, " iucs%s", VTY_NEWLINE);
addr = g_hnb_gw->config.iucs_remote_ip;
if (addr && (strcmp(addr, HNBGW_IUCS_REMOTE_IP_DEFAULT) != 0))
vty_out(vty, " remote-ip %s%s", addr, VTY_NEWLINE);
port = g_hnb_gw->config.iucs_remote_port;
if (port && port != SUA_PORT)
vty_out(vty, " remote-port %u%s", port, VTY_NEWLINE);
vty_out(vty, " remote-addr %s%s", g_hnb_gw->config.iucs_remote_addr_name,
VTY_NEWLINE);
return CMD_SUCCESS;
}
@ -266,15 +251,12 @@ static int config_write_hnbgw_iups(struct vty *vty)
const char *addr;
uint16_t port;
if (!g_hnb_gw->config.iups_remote_addr_name)
return CMD_SUCCESS;
vty_out(vty, " iups%s", VTY_NEWLINE);
addr = g_hnb_gw->config.iups_remote_ip;
if (addr && (strcmp(addr, HNBGW_IUPS_REMOTE_IP_DEFAULT) != 0))
vty_out(vty, " remote-ip %s%s", addr, VTY_NEWLINE);
port = g_hnb_gw->config.iups_remote_port;
if (port && port != SUA_PORT)
vty_out(vty, " remote-port %u%s", port, VTY_NEWLINE);
vty_out(vty, " remote-addr %s%s", g_hnb_gw->config.iups_remote_addr_name,
VTY_NEWLINE);
return CMD_SUCCESS;
}
@ -300,15 +282,13 @@ void hnbgw_vty_init(struct hnb_gw *gw, void *tall_ctx)
install_node(&iucs_node, config_write_hnbgw_iucs);
vty_install_default(IUCS_NODE);
install_element(IUCS_NODE, &cfg_hnbgw_iucs_remote_ip_cmd);
install_element(IUCS_NODE, &cfg_hnbgw_iucs_remote_port_cmd);
install_element(IUCS_NODE, &cfg_hnbgw_iucs_remote_addr_cmd);
install_element(HNBGW_NODE, &cfg_hnbgw_iups_cmd);
install_node(&iups_node, config_write_hnbgw_iups);
vty_install_default(IUPS_NODE);
install_element(IUPS_NODE, &cfg_hnbgw_iups_remote_ip_cmd);
install_element(IUPS_NODE, &cfg_hnbgw_iups_remote_port_cmd);
install_element(IUPS_NODE, &cfg_hnbgw_iups_remote_addr_cmd);
install_element_ve(&show_hnb_cmd);
install_element_ve(&show_ue_cmd);