lynxis lazus has submitted this change. (
https://gerrit.osmocom.org/c/libosmocore/+/38763?usp=email )
Change subject: gprs/gsm23003: add osmo_mme_id_cmp & osmo_gummei_cmp
......................................................................
gprs/gsm23003: add osmo_mme_id_cmp & osmo_gummei_cmp
In order to support mobility between GERAN and EUTRAN,
the SGSN need to route a SGSN Context Request towards a
MME identified by the GUMMEI.
Change-Id: I9a6769b1bff16450046181b31a8762ff49955ae4
---
M include/osmocom/gsm/gsm23003.h
M src/gsm/gsm23003.c
M src/gsm/libosmogsm.map
3 files changed, 38 insertions(+), 0 deletions(-)
Approvals:
fixeria: Looks good to me, approved
pespin: Looks good to me, but someone else must approve
Jenkins Builder: Verified
diff --git a/include/osmocom/gsm/gsm23003.h b/include/osmocom/gsm/gsm23003.h
index 4070581..8b9bcfb 100644
--- a/include/osmocom/gsm/gsm23003.h
+++ b/include/osmocom/gsm/gsm23003.h
@@ -167,6 +167,8 @@
int osmo_rai_cmp(const struct osmo_routing_area_id *a, const struct
osmo_routing_area_id *b);
int osmo_cgi_cmp(const struct osmo_cell_global_id *a, const struct
osmo_cell_global_id *b);
int osmo_cgi_ps_cmp(const struct osmo_cell_global_id_ps *a, const struct
osmo_cell_global_id_ps *b);
+int osmo_mme_id_cmp(const struct osmo_mme_id *a, const struct osmo_mme_id *b);
+int osmo_gummei_cmp(const struct osmo_gummei *a, const struct osmo_gummei *b);
int osmo_gen_home_network_domain(char *out, const struct osmo_plmn_id *plmn);
int osmo_parse_home_network_domain(struct osmo_plmn_id *out, const char *in);
diff --git a/src/gsm/gsm23003.c b/src/gsm/gsm23003.c
index 1eed41f..0f4c301 100644
--- a/src/gsm/gsm23003.c
+++ b/src/gsm/gsm23003.c
@@ -656,6 +656,40 @@
return 0;
}
+/* Compare two MME Ids
+ * The order of comparison is MME GroupId, MME Code.
+ * \param a[in] "Left" side MME Id.
+ * \param b[in] "Right" side MME Id.
+ * \returns 0 if the MME Ids are equal, -1 if a < b, 1 if a > b. */
+int osmo_mme_id_cmp(const struct osmo_mme_id *a, const struct osmo_mme_id *b)
+{
+ if (a->group_id < b->group_id)
+ return -1;
+ if (a->group_id > b->group_id)
+ return 1;
+
+ if (a->code < b->code)
+ return -1;
+ if (a->code > b->code)
+ return 1;
+
+ return 0;
+}
+
+/* Compare two GUMMEI
+ * The order of comparison is MCC, MNC, MME GroupId, MME Code.
+ * \param a[in] "Left" side GUMMEI.
+ * \param b[in] "Right" side GUMMEI.
+ * \returns 0 if the GUMMEI are equal, -1 if a < b, 1 if a > b. */
+int osmo_gummei_cmp(const struct osmo_gummei *a, const struct osmo_gummei *b)
+{
+ int rc = osmo_plmn_cmp(&a->plmn, &b->plmn);
+ if (rc)
+ return rc;
+
+ return osmo_mme_id_cmp(&a->mme, &b->mme);
+}
+
/*! Generate TS 23.003 Section 19.2 Home Network Realm/Domain (text form)
* \param out[out] caller-provided output buffer, at least 33 bytes long
* \param plmn[in] Osmocom representation of PLMN ID (MCC + MNC)
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 3bc8309..8d17ce3 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -502,6 +502,8 @@
osmo_gummei_name;
osmo_gummei_name_buf;
osmo_gummei_name_c;
+osmo_gummei_cmp;
+osmo_mme_id_cmp;
osmo_mnc_from_str;
osmo_mnc_cmp;
osmo_plmn_cmp;
--
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Gerrit-MessageType: merged
Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: I9a6769b1bff16450046181b31a8762ff49955ae4
Gerrit-Change-Number: 38763
Gerrit-PatchSet: 3
Gerrit-Owner: lynxis lazus <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <[email protected]>
Gerrit-Reviewer: lynxis lazus <[email protected]>
Gerrit-Reviewer: pespin <[email protected]>
