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-rw-r--r--include/osmocom/gsm/protocol/gsm_23_003.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/osmocom/gsm/protocol/gsm_23_003.h b/include/osmocom/gsm/protocol/gsm_23_003.h
index babd0f4b..be1b157b 100644
--- a/include/osmocom/gsm/protocol/gsm_23_003.h
+++ b/include/osmocom/gsm/protocol/gsm_23_003.h
@@ -5,6 +5,9 @@
/* Chapter 2.2 */
#define GSM23003_IMSI_MAX_DIGITS 15
#define GSM23003_IMSI_MIN_DIGITS 6
+/*! The char[] buffer size to completely contain an IMSI including the optional checksum digit as well as the
+ * terminating nul character. */
+#define OSMO_IMSI_BUF_SIZE (GSM23003_IMSI_MAX_DIGITS+2)
/* Chapter 2.4 */
#define GSM23003_TMSI_NUM_BYTES 4
/* Chapter 2.5 */