Add support for multiple APN profiles for subscriber data
Previously the HLR sent in the Insert Subscriber Data call only the
wildcard APN as a single entry.
This violates the spec because the first entry (with the lowest context_id) is
always the default APN, but it is forbidden to have a wildcard APN as default apn.
Introduce a default template/profile which can contain multiple APNs.
This profile is always sent out to the SGSN/MME as part of Insert-Subscriber-Data.
In the future a subscriber might have a profile template name written into the
database which will resolve to a "pdp-profile premium" in the configuration.
To be backward compatible, if the pdp-profile default section is missing,
the HLR will send out only a wildcard APN.
Config example:
hlr
ps
pdp-profile default
profile 1
apn internet
profile 2
apn *
Changes to the apn list will be only handed out to subscribers
when the subscriber do a location update.
Related: SYS#6391
Change-Id: I540132ee5dcfd09f4816e02e702927e1074ca50f
diff --git a/src/hlr_vty.c b/src/hlr_vty.c
index 02e0cde..af57159 100644
--- a/src/hlr_vty.c
+++ b/src/hlr_vty.c
@@ -26,9 +26,12 @@
*/
#include <errno.h>
+#include <string.h>
#include <osmocom/core/talloc.h>
#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
+#include <osmocom/gsm/apn.h>
+
#include <osmocom/vty/vty.h>
#include <osmocom/vty/stats.h>
#include <osmocom/vty/command.h>
@@ -103,6 +106,182 @@
return CMD_SUCCESS;
}
+struct cmd_node ps_node = {
+ PS_NODE,
+ "%s(config-hlr-ps)# ",
+ 1,
+};
+
+DEFUN(cfg_ps,
+ cfg_ps_cmd,
+ "ps",
+ "Configure the PS options")
+{
+ vty->node = PS_NODE;
+ return CMD_SUCCESS;
+}
+
+struct cmd_node ps_pdp_profiles_node = {
+ PS_PDP_PROFILES_NODE,
+ "%s(config-hlr-ps-pdp-profiles)# ",
+ 1,
+};
+
+DEFUN(cfg_ps_pdp_profiles,
+ cfg_ps_pdp_profiles_cmd,
+ "pdp-profiles default",
+ "Define a PDP profile set.\n"
+ "Define the global default profile.\n")
+{
+ g_hlr->ps.pdp_profile.enabled = true;
+
+ vty->node = PS_PDP_PROFILES_NODE;
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_no_ps_pdp_profiles,
+ cfg_no_ps_pdp_profiles_cmd,
+ "no pdp-profiles default",
+ NO_STR
+ "Delete PDP profile.\n"
+ "Unique identifier for this PDP profile set.\n")
+{
+ g_hlr->ps.pdp_profile.enabled = false;
+ return CMD_SUCCESS;
+}
+
+
+
+struct cmd_node ps_pdp_profiles_profile_node = {
+ PS_PDP_PROFILES_PROFILE_NODE,
+ "%s(config-hlr-ps-pdp-profile)# ",
+ 1,
+};
+
+
+/* context_id == 0 means the slot is free */
+struct osmo_gsup_pdp_info *get_pdp_profile(uint8_t context_id)
+{
+ for (int i = 0; i < OSMO_GSUP_MAX_NUM_PDP_INFO; i++) {
+ struct osmo_gsup_pdp_info *info = &g_hlr->ps.pdp_profile.pdp_infos[i];
+ if (info->context_id == context_id)
+ return info;
+ }
+
+ return NULL;
+}
+
+struct osmo_gsup_pdp_info *create_pdp_profile(uint8_t context_id)
+{
+ struct osmo_gsup_pdp_info *info = get_pdp_profile(0);
+ if (!info)
+ return NULL;
+
+ memset(info, 0, sizeof(*info));
+ info->context_id = context_id;
+ info->have_info = 1;
+
+ g_hlr->ps.pdp_profile.num_pdp_infos++;
+ return info;
+}
+
+void destroy_pdp_profile(struct osmo_gsup_pdp_info *info)
+{
+ info->context_id = 0;
+ if (info->apn_enc)
+ talloc_free((void *) info->apn_enc);
+
+ g_hlr->ps.pdp_profile.num_pdp_infos--;
+ memset(info, 0, sizeof(*info));
+}
+
+DEFUN(cfg_ps_pdp_profiles_profile,
+ cfg_ps_pdp_profiles_profile_cmd,
+ "profile <1-10>",
+ "Configure a PDP profile\n"
+ "Unique PDP context identifier. The lowest profile will be used as default context.\n")
+{
+ struct osmo_gsup_pdp_info *info;
+ uint8_t context_id = atoi(argv[0]);
+
+ info = get_pdp_profile(context_id);
+ if (!info) {
+ info = create_pdp_profile(context_id);
+ if (!info) {
+ vty_out(vty, "Failed to create profile %d!%s", context_id, VTY_NEWLINE);
+ return CMD_ERR_INCOMPLETE;
+ }
+ }
+
+ vty->node = PS_PDP_PROFILES_PROFILE_NODE;
+ vty->index = info;
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_no_ps_pdp_profiles_profile,
+ cfg_no_ps_pdp_profiles_profile_cmd,
+ "no profile <1-10>",
+ NO_STR
+ "Delete a PDP profile\n"
+ "Unique PDP context identifier. The lowest profile will be used as default context.\n")
+{
+ struct osmo_gsup_pdp_info *info;
+ uint8_t context_id = atoi(argv[0]);
+
+ info = get_pdp_profile(context_id);
+ if (info)
+ destroy_pdp_profile(info);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_ps_pdp_profile_apn, cfg_ps_pdp_profile_apn_cmd,
+ "apn ID",
+ "Configure the APN.\n"
+ "APN name or * for wildcard apn.\n")
+{
+ struct osmo_gsup_pdp_info *info = vty->index;
+ const char *apn_name = argv[0];
+
+ /* apn encoded takes one more byte than strlen() */
+ size_t apn_enc_len = strlen(apn_name) + 1;
+ uint8_t *apn_enc;
+ int ret;
+
+ if (apn_enc_len > APN_MAXLEN) {
+ vty_out(vty, "APN name is too long '%s'. Max is %d!%s", apn_name, APN_MAXLEN, VTY_NEWLINE);
+ return CMD_ERR_INCOMPLETE;
+ }
+
+ info->apn_enc = apn_enc = (uint8_t *) talloc_zero_size(g_hlr, apn_enc_len);
+ ret = info->apn_enc_len = osmo_apn_from_str(apn_enc, apn_enc_len, apn_name);
+ if (ret < 0) {
+ talloc_free(apn_enc);
+ info->apn_enc = NULL;
+ info->apn_enc_len = 0;
+ vty_out(vty, "Invalid APN name %s!", apn_name);
+ return CMD_WARNING;
+ }
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_no_ps_pdp_profile_apn, cfg_no_ps_pdp_profile_apn_cmd,
+ "no apn",
+ NO_STR
+ "Delete the APN.\n")
+{
+ struct osmo_gsup_pdp_info *info = vty->index;
+ if (info->apn_enc) {
+ talloc_free((void *) info->apn_enc);
+ info->apn_enc = NULL;
+ info->apn_enc_len = 0;
+ }
+
+ return CMD_SUCCESS;
+}
+
+
static int config_write_hlr(struct vty *vty)
{
vty_out(vty, "hlr%s", VTY_NEWLINE);
@@ -149,6 +328,37 @@
return CMD_SUCCESS;
}
+static int config_write_hlr_ps(struct vty *vty)
+{
+ vty_out(vty, " ps%s", VTY_NEWLINE);
+ return CMD_SUCCESS;
+}
+
+static int config_write_hlr_ps_pdp_profiles(struct vty *vty)
+{
+ char apn[APN_MAXLEN + 1] = {};
+
+ if (!g_hlr->ps.pdp_profile.enabled)
+ return CMD_SUCCESS;
+
+ vty_out(vty, " pdp-profiles default%s", VTY_NEWLINE);
+ for (int i = 0; i < g_hlr->ps.pdp_profile.num_pdp_infos; i++) {
+ struct osmo_gsup_pdp_info *pdp_info = &g_hlr->ps.pdp_profile.pdp_infos[i];
+ if (!pdp_info->context_id)
+ continue;
+
+ vty_out(vty, " profile %d%s", pdp_info->context_id, VTY_NEWLINE);
+ if (!pdp_info->have_info)
+ continue;
+
+ if (pdp_info->apn_enc && pdp_info->apn_enc_len) {
+ osmo_apn_to_str(apn, pdp_info->apn_enc, pdp_info->apn_enc_len);
+ vty_out(vty, " apn %s%s", apn, VTY_NEWLINE);
+ }
+ }
+ return CMD_SUCCESS;
+}
+
static void show_one_conn(struct vty *vty, const struct osmo_gsup_conn *conn)
{
const struct ipa_server_conn *isc = conn->conn;
@@ -538,6 +748,20 @@
install_element(GSUP_NODE, &cfg_hlr_gsup_bind_ip_cmd);
install_element(GSUP_NODE, &cfg_hlr_gsup_ipa_name_cmd);
+ /* PS */
+ install_node(&ps_node, config_write_hlr_ps);
+ install_element(HLR_NODE, &cfg_ps_cmd);
+
+ install_node(&ps_pdp_profiles_node, config_write_hlr_ps_pdp_profiles);
+ install_element(PS_NODE, &cfg_ps_pdp_profiles_cmd);
+ install_element(PS_NODE, &cfg_no_ps_pdp_profiles_cmd);
+
+ install_node(&ps_pdp_profiles_profile_node, NULL);
+ install_element(PS_PDP_PROFILES_NODE, &cfg_ps_pdp_profiles_profile_cmd);
+ install_element(PS_PDP_PROFILES_NODE, &cfg_no_ps_pdp_profiles_profile_cmd);
+ install_element(PS_PDP_PROFILES_PROFILE_NODE, &cfg_ps_pdp_profile_apn_cmd);
+ install_element(PS_PDP_PROFILES_PROFILE_NODE, &cfg_no_ps_pdp_profile_apn_cmd);
+
install_element(HLR_NODE, &cfg_database_cmd);
install_element(HLR_NODE, &cfg_euse_cmd);