add/clean big-endian packed structs (struct_endianess.py)

This is 1:1 the result of doing

  cd libosmocore
  ./contrib/struct_endianess.py
  git commit -a

Running struct_endianess.py again should result in no changes.

That means we could include such a check in the gerrit verification job now.

Change-Id: Ia0b99d76932aeb03e93bd0c62d3bf025dec5f9d2

8 files changed, 646 insertions, 45 deletions

diff --git a/include/osmocom/gprs/protocol/gsm_04_60.h b/include/osmocom/gprs/protocol/gsm_04_60.h
index 96e9ab78..5d5fca9a 100644
--- a/include/osmocom/gprs/protocol/gsm_04_60.h
+++ b/include/osmocom/gprs/protocol/gsm_04_60.h
@@ -7,10 +7,12 @@
 #pragma once
 
 #include <stdint.h>
+#include <osmocom/core/endian.h>
 
 #if OSMO_IS_LITTLE_ENDIAN == 1
 /* TS 04.60  10.3a.4.1.1 */
 struct gprs_rlc_ul_header_egprs_1 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t r:1,
 		 si:1,
 		 cv:4,
@@ -26,10 +28,20 @@ struct gprs_rlc_ul_header_egprs_1 {
 		 spare_hi:1;
 	uint8_t spare_lo:6,
 		 dummy:2;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t tfi_hi:2, cv:4, si:1, r:1;
+	uint8_t bsn1_hi:5, tfi_lo:3;
+	uint8_t bsn2_hi:2, bsn1_lo:6;
+	uint8_t bsn2_lo:8;
+	uint8_t spare_hi:1, pi:1, rsb:1, cps:5;
+	uint8_t dummy:2, spare_lo:6;
+#endif
 } __attribute__ ((packed));
 
 /* TS 04.60  10.3a.4.2.1 */
 struct gprs_rlc_ul_header_egprs_2 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t r:1,
 		 si:1,
 		 cv:4,
@@ -44,10 +56,19 @@ struct gprs_rlc_ul_header_egprs_2 {
 		 spare_hi:5;
 	uint8_t spare_lo:5,
 		 dummy:3;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t tfi_hi:2, cv:4, si:1, r:1;
+	uint8_t bsn1_hi:5, tfi_lo:3;
+	uint8_t cps_hi:2, bsn1_lo:6;
+	uint8_t spare_hi:5, pi:1, rsb:1, cps_lo:1;
+	uint8_t dummy:3, spare_lo:5;
+#endif
 } __attribute__ ((packed));
 
 /* TS 04.60  10.3a.4.3.1 */
 struct gprs_rlc_ul_header_egprs_3 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t r:1,
 		 si:1,
 		 cv:4,
@@ -62,9 +83,17 @@ struct gprs_rlc_ul_header_egprs_3 {
 		 pi:1,
 		 spare:1,
 		 dummy:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t tfi_hi:2, cv:4, si:1, r:1;
+	uint8_t bsn1_hi:5, tfi_lo:3;
+	uint8_t cps_hi:2, bsn1_lo:6;
+	uint8_t dummy:1, spare:1, pi:1, rsb:1, spb:2, cps_lo:2;
+#endif
 } __attribute__ ((packed));
 
 struct gprs_rlc_dl_header_egprs_1 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t usf:3,
 		 es_p:2,
 		 rrbp:2,
@@ -77,9 +106,18 @@ struct gprs_rlc_dl_header_egprs_1 {
 		 bsn2_hi:7;
 	uint8_t bsn2_lo:3,
 		 cps:5;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t tfi_hi:1, rrbp:2, es_p:2, usf:3;
+	uint8_t bsn1_hi:2, pr:2, tfi_lo:4;
+	uint8_t bsn1_mid:8;
+	uint8_t bsn2_hi:7, bsn1_lo:1;
+	uint8_t cps:5, bsn2_lo:3;
+#endif
 } __attribute__ ((packed));
 
 struct gprs_rlc_dl_header_egprs_2 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t usf:3,
 		 es_p:2,
 		 rrbp:2,
@@ -91,9 +129,17 @@ struct gprs_rlc_dl_header_egprs_2 {
 	uint8_t bsn1_lo:1,
 		 cps:3,
 		 dummy:4;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t tfi_hi:1, rrbp:2, es_p:2, usf:3;
+	uint8_t bsn1_hi:2, pr:2, tfi_lo:4;
+	uint8_t bsn1_mid:8;
+	uint8_t dummy:4, cps:3, bsn1_lo:1;
+#endif
 } __attribute__ ((packed));
 
 struct gprs_rlc_dl_header_egprs_3 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t usf:3,
 		 es_p:2,
 		 rrbp:2,
@@ -106,10 +152,18 @@ struct gprs_rlc_dl_header_egprs_3 {
 		 cps:4,
 		 spb:2,
 		 dummy:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t tfi_hi:1, rrbp:2, es_p:2, usf:3;
+	uint8_t bsn1_hi:2, pr:2, tfi_lo:4;
+	uint8_t bsn1_mid:8;
+	uint8_t dummy:1, spb:2, cps:4, bsn1_lo:1;
+#endif
 } __attribute__ ((packed));
 #else
 /* TS 04.60  10.3a.4.1.1 */
 struct gprs_rlc_ul_header_egprs_1 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t tfi_hi:2,
 		 cv:4,
 		 si:1,
@@ -125,10 +179,20 @@ struct gprs_rlc_ul_header_egprs_1 {
 		cps:5;
 	uint8_t dummy:2,
 		spare_lo:6;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t r:1, si:1, cv:4, tfi_hi:2;
+	uint8_t tfi_lo:3, bsn1_hi:5;
+	uint8_t bsn1_lo:6, bsn2_hi:2;
+	uint8_t bsn2_lo:8;
+	uint8_t cps:5, rsb:1, pi:1, spare_hi:1;
+	uint8_t spare_lo:6, dummy:2;
+#endif
 } __attribute__ ((packed));
 
 /* TS 04.60  10.3a.4.2.1 */
 struct gprs_rlc_ul_header_egprs_2 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t tfi_hi:2,
 		 cv:4,
 		 si:1,
@@ -143,10 +207,19 @@ struct gprs_rlc_ul_header_egprs_2 {
 		 cps_lo:1;
 	uint8_t dummy:3,
 		 spare_lo:5;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t r:1, si:1, cv:4, tfi_hi:2;
+	uint8_t tfi_lo:3, bsn1_hi:5;
+	uint8_t bsn1_lo:6, cps_hi:2;
+	uint8_t cps_lo:1, rsb:1, pi:1, spare_hi:5;
+	uint8_t spare_lo:5, dummy:3;
+#endif
 } __attribute__ ((packed));
 
 /* TS 04.60  10.3a.4.3.1 */
 struct gprs_rlc_ul_header_egprs_3 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t tfi_hi:2,
 		 cv:4,
 		 si:1,
@@ -161,9 +234,17 @@ struct gprs_rlc_ul_header_egprs_3 {
 		 rsb:1,
 		 spb:2,
 		 cps_lo:2;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t r:1, si:1, cv:4, tfi_hi:2;
+	uint8_t tfi_lo:3, bsn1_hi:5;
+	uint8_t bsn1_lo:6, cps_hi:2;
+	uint8_t cps_lo:2, spb:2, rsb:1, pi:1, spare:1, dummy:1;
+#endif
 } __attribute__ ((packed));
 
 struct gprs_rlc_dl_header_egprs_1 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t tfi_hi:1,
 		 rrbp:2,
 		 es_p:2,
@@ -176,9 +257,18 @@ struct gprs_rlc_dl_header_egprs_1 {
 		 bsn1_lo:1;
 	uint8_t cps:5,
 		 bsn2_lo:3;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t usf:3, es_p:2, rrbp:2, tfi_hi:1;
+	uint8_t tfi_lo:4, pr:2, bsn1_hi:2;
+	uint8_t bsn1_mid:8;
+	uint8_t bsn1_lo:1, bsn2_hi:7;
+	uint8_t bsn2_lo:3, cps:5;
+#endif
 } __attribute__ ((packed));
 
 struct gprs_rlc_dl_header_egprs_2 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t tfi_hi:1,
 		 rrbp:2,
 		 es_p:2,
@@ -190,9 +280,17 @@ struct gprs_rlc_dl_header_egprs_2 {
 	uint8_t dummy:4,
 		 cps:3,
 		 bsn1_lo:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t usf:3, es_p:2, rrbp:2, tfi_hi:1;
+	uint8_t tfi_lo:4, pr:2, bsn1_hi:2;
+	uint8_t bsn1_mid:8;
+	uint8_t bsn1_lo:1, cps:3, dummy:4;
+#endif
 } __attribute__ ((packed));
 
 struct gprs_rlc_dl_header_egprs_3 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t tfi_hi:1,
 		 rrbp:2,
 		 es_p:2,
@@ -205,5 +303,12 @@ struct gprs_rlc_dl_header_egprs_3 {
 		 spb:2,
 		 cps:4,
 		 bsn1_lo:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t usf:3, es_p:2, rrbp:2, tfi_hi:1;
+	uint8_t tfi_lo:4, pr:2, bsn1_hi:2;
+	uint8_t bsn1_mid:8;
+	uint8_t bsn1_lo:1, cps:4, spb:2, dummy:1;
+#endif
 } __attribute__ ((packed));
 #endif
diff --git a/include/osmocom/gsm/protocol/gsm_03_41.h b/include/osmocom/gsm/protocol/gsm_03_41.h
index 2e0ad69f..1b399aee 100644
--- a/include/osmocom/gsm/protocol/gsm_03_41.h
+++ b/include/osmocom/gsm/protocol/gsm_03_41.h
@@ -19,35 +19,34 @@
 /* Chapter 9.3.2 */
 struct gsm341_ms_message {
 	struct {
-#if OSMO_IS_LITTLE_ENDIAN == 1
+#if OSMO_IS_LITTLE_ENDIAN
 		uint8_t code_hi:6;
 		uint8_t gs:2;
 		uint8_t update:4;
 		uint8_t code_lo:4;
-#else
-		uint8_t gs:2;
-		uint8_t code_hi:6;
-		uint8_t code_lo:4;
-		uint8_t update:4;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+		uint8_t gs:2, code_hi:6;
+		uint8_t code_lo:4, update:4;
 #endif
 	} serial;
 	uint16_t msg_id;
 	struct {
-#if OSMO_IS_LITTLE_ENDIAN == 1
+#if OSMO_IS_LITTLE_ENDIAN
 		uint8_t language:4;
 		uint8_t group:4;
-#else
-		uint8_t group:4;
-		uint8_t language:4;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+		uint8_t group:4, language:4;
 #endif
 	} dcs;
 	struct {
-#if OSMO_IS_LITTLE_ENDIAN == 1
+#if OSMO_IS_LITTLE_ENDIAN
 		uint8_t total:4;
 		uint8_t current:4;
-#else
-		uint8_t current:4;
-		uint8_t total:4;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+		uint8_t current:4, total:4;
 #endif
 	} page;
 	uint8_t data[0];
@@ -56,20 +55,17 @@ struct gsm341_ms_message {
 /* Chapter 9.4.1.3 */
 struct gsm341_etws_message {
 	struct {
-#if OSMO_IS_LITTLE_ENDIAN == 1
+#if OSMO_IS_LITTLE_ENDIAN
 		uint8_t code_hi:4;
 		uint8_t popup:1;
 		uint8_t alert:1;
 		uint8_t gs:2;
 		uint8_t update:4;
 		uint8_t code_lo:4;
-#else
-		uint8_t gs:2;
-		uint8_t alert:1;
-		uint8_t popup:1;
-		uint8_t code_hi:4;
-		uint8_t code_lo:4;
-		uint8_t update:4;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+		uint8_t gs:2, alert:1, popup:1, code_hi:4;
+		uint8_t code_lo:4, update:4;
 #endif
 	} serial;
 	uint16_t msg_id;
diff --git a/include/osmocom/gsm/protocol/gsm_04_08.h b/include/osmocom/gsm/protocol/gsm_04_08.h
index e218295c..a97225c5 100644
--- a/include/osmocom/gsm/protocol/gsm_04_08.h
+++ b/include/osmocom/gsm/protocol/gsm_04_08.h
@@ -13,15 +13,21 @@ struct gsm_lchan;
 
 /* Chapter 10.5.1.5 */
 struct gsm48_classmark1 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t pwr_lev:3,
 		 a5_1:1,
 		 es_ind:1,
 		 rev_lev:2,
 		 spare:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t spare:1, rev_lev:2, es_ind:1, a5_1:1, pwr_lev:3;
+#endif
 } __attribute__ ((packed));
 
 /* Chapter 10.5.1.6 */
 struct gsm48_classmark2 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t pwr_lev:3,
 		 a5_1:1,
 		 es_ind:1,
@@ -42,11 +48,18 @@ struct gsm48_classmark2 {
 		 lcsva_cap:1,
 		 spare4:1,
 		 cm3:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t spare:1, rev_lev:2, es_ind:1, a5_1:1, pwr_lev:3;
+	uint8_t	spare2:1, ps_cap:1, ss_scr:2, sm_cap:1, vbs:1, vgcs:1, fc:1;
+	uint8_t	cm3:1, spare4:1, lcsva_cap:1, spare3:1, solsa:1, cmsp:1, a5_3:1, a5_2:1;
+#endif
 } __attribute__ ((packed));
 
 /* Chapter 10.5.2.1b.3 */
 #if OSMO_IS_LITTLE_ENDIAN == 1
 struct gsm48_range_1024 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	w1_hi:2,
 		 f0:1,
 		 form_id:5;
@@ -78,9 +91,29 @@ struct gsm48_range_1024 {
 		 w14_lo:3;
 	uint8_t	w16:6,
 		 w15_lo:2;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	form_id:5, f0:1, w1_hi:2;
+	uint8_t	w1_lo;
+	uint8_t	w2_hi;
+	uint8_t	w2_lo:1, w3_hi:7;
+	uint8_t	w3_lo:2, w4_hi:6;
+	uint8_t	w4_lo:2, w5_hi:6;
+	uint8_t	w5_lo:2, w6_hi:6;
+	uint8_t	w6_lo:2, w7_hi:6;
+	uint8_t	w7_lo:2, w8_hi:6;
+	uint8_t	w8_lo:1, w9:7;
+	uint8_t	w10:7, w11_hi:1;
+	uint8_t	w11_lo:6, w12_hi:2;
+	uint8_t	w12_lo:5, w13_hi:3;
+	uint8_t	w13_lo:4, w14_hi:4;
+	uint8_t	w14_lo:3, w15_hi:5;
+	uint8_t	w15_lo:2, w16:6;
+#endif
 } __attribute__ ((packed));
 #else
 struct gsm48_range_1024 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	 form_id:5,
 		f0:1,
 		w1_hi:2;
@@ -112,12 +145,32 @@ struct gsm48_range_1024 {
 		w15_hi:5;
 	uint8_t	 w15_lo:2,
 		w16:6;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	 w1_hi:2, f0:1, form_id:5;
+	uint8_t	w1_lo;
+	uint8_t	w2_hi;
+	uint8_t	 w3_hi:7, w2_lo:1;
+	uint8_t	 w4_hi:6, w3_lo:2;
+	uint8_t	 w5_hi:6, w4_lo:2;
+	uint8_t	 w6_hi:6, w5_lo:2;
+	uint8_t	 w7_hi:6, w6_lo:2;
+	uint8_t	 w8_hi:6, w7_lo:2;
+	uint8_t	 w9:7, w8_lo:1;
+	uint8_t	 w11_hi:1, w10:7;
+	uint8_t	 w12_hi:2, w11_lo:6;
+	uint8_t	 w13_hi:3, w12_lo:5;
+	uint8_t	 w14_hi:4, w13_lo:4;
+	uint8_t	 w15_hi:5, w14_lo:3;
+	uint8_t	 w16:6, w15_lo:2;
+#endif
 } __attribute__ ((packed));
 #endif
 
 /* Chapter 10.5.2.1b.4 */
 #if OSMO_IS_LITTLE_ENDIAN == 1
 struct gsm48_range_512 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	orig_arfcn_hi:1,
 		 form_id:7;
 	uint8_t	orig_arfcn_mid;
@@ -149,9 +202,29 @@ struct gsm48_range_512 {
 		 w15:6;
 	uint8_t	w17:5,
 		 w16_lo:3;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	form_id:7, orig_arfcn_hi:1;
+	uint8_t	orig_arfcn_mid;
+	uint8_t	orig_arfcn_lo:1, w1_hi:7;
+	uint8_t	w1_lo:2, w2_hi:6;
+	uint8_t	w2_lo:2, w3_hi:6;
+	uint8_t	w3_lo:2, w4_hi:6;
+	uint8_t	w4_lo:1, w5:7;
+	uint8_t	w6:7, w7_hi:1;
+	uint8_t	w7_lo:6, w8_hi:2;
+	uint8_t	w8_lo:4, w9_hi:4;
+	uint8_t	w9_lo:2, w10:6;
+	uint8_t	w11:6, w12_hi:2;
+	uint8_t	w12_lo:4, w13_hi:4;
+	uint8_t	w13_lo:2, w14:6;
+	uint8_t	w15:6, w16_hi:2;
+	uint8_t	w16_lo:3, w17:5;
+#endif
 } __attribute__ ((packed));
 #else
 struct gsm48_range_512 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	 form_id:7,
 		orig_arfcn_hi:1;
 	uint8_t	orig_arfcn_mid;
@@ -183,12 +256,32 @@ struct gsm48_range_512 {
 		w16_hi:2;
 	uint8_t	 w16_lo:3,
 		w17:5;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	 orig_arfcn_hi:1, form_id:7;
+	uint8_t	orig_arfcn_mid;
+	uint8_t	 w1_hi:7, orig_arfcn_lo:1;
+	uint8_t	 w2_hi:6, w1_lo:2;
+	uint8_t	 w3_hi:6, w2_lo:2;
+	uint8_t	 w4_hi:6, w3_lo:2;
+	uint8_t	 w5:7, w4_lo:1;
+	uint8_t	 w7_hi:1, w6:7;
+	uint8_t	 w8_hi:2, w7_lo:6;
+	uint8_t	 w9_hi:4, w8_lo:4;
+	uint8_t	 w10:6, w9_lo:2;
+	uint8_t	 w12_hi:2, w11:6;
+	uint8_t	 w13_hi:4, w12_lo:4;
+	uint8_t	 w14:6, w13_lo:2;
+	uint8_t	 w16_hi:2, w15:6;
+	uint8_t	 w17:5, w16_lo:3;
+#endif
 } __attribute__ ((packed));
 #endif
 
 /* Chapter 10.5.2.1b.5 */
 #if OSMO_IS_LITTLE_ENDIAN == 1
 struct gsm48_range_256 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	orig_arfcn_hi:1,
 		 form_id:7;
 	uint8_t	orig_arfcn_mid;
@@ -226,9 +319,29 @@ struct gsm48_range_256 {
 	uint8_t	spare:1,
 		 w21:4,
 		 w20_lo:3;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	form_id:7, orig_arfcn_hi:1;
+	uint8_t	orig_arfcn_mid;
+	uint8_t	orig_arfcn_lo:1, w1_hi:7;
+	uint8_t	w1_lo:1, w2:7;
+	uint8_t	w3:7, w4_hi:1;
+	uint8_t	w4_lo:5, w5_hi:3;
+	uint8_t	w5_lo:3, w6_hi:5;
+	uint8_t	w6_lo:1, w7:6, w8_hi:1;
+	uint8_t	w8_lo:4, w9_hi:4;
+	uint8_t	w9_lo:1, w10:5, w11_hi:2;
+	uint8_t	w11_lo:3, w12:5;
+	uint8_t	w13:5, w14_hi:3;
+	uint8_t	w14_lo:2, w15:5, w16_hi:1;
+	uint8_t	w16_lo:3, w17:4, w18_hi:1;
+	uint8_t	w18_lo:3, w19:4, w20_hi:1;
+	uint8_t	w20_lo:3, w21:4, spare:1;
+#endif
 } __attribute__ ((packed));
 #else
 struct gsm48_range_256 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	 form_id:7,
 		orig_arfcn_hi:1;
 	uint8_t	orig_arfcn_mid;
@@ -266,12 +379,32 @@ struct gsm48_range_256 {
 	uint8_t	 w20_lo:3,
 		 w21:4,
 		spare:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	 orig_arfcn_hi:1, form_id:7;
+	uint8_t	orig_arfcn_mid;
+	uint8_t	 w1_hi:7, orig_arfcn_lo:1;
+	uint8_t	 w2:7, w1_lo:1;
+	uint8_t	 w4_hi:1, w3:7;
+	uint8_t	 w5_hi:3, w4_lo:5;
+	uint8_t	 w6_hi:5, w5_lo:3;
+	uint8_t	 w8_hi:1, w7:6, w6_lo:1;
+	uint8_t	 w9_hi:4, w8_lo:4;
+	uint8_t	 w11_hi:2, w10:5, w9_lo:1;
+	uint8_t	 w12:5, w11_lo:3;
+	uint8_t	 w14_hi:3, w13:5;
+	uint8_t	 w16_hi:1, w15:5, w14_lo:2;
+	uint8_t	 w18_hi:1, w17:4, w16_lo:3;
+	uint8_t	 w20_hi:1, w19:4, w18_lo:3;
+	uint8_t	 spare:1, w21:4, w20_lo:3;
+#endif
 } __attribute__ ((packed));
 #endif
 
 /* Chapter 10.5.2.1b.6 */
 #if OSMO_IS_LITTLE_ENDIAN == 1
 struct gsm48_range_128 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	orig_arfcn_hi:1,
 		 form_id:7;
 	uint8_t	orig_arfcn_mid;
@@ -311,9 +444,29 @@ struct gsm48_range_128 {
 		 w28:3,
 		 w27:3,
 		 w26_lo:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	form_id:7, orig_arfcn_hi:1;
+	uint8_t	orig_arfcn_mid;
+	uint8_t	orig_arfcn_lo:1, w1:7;
+	uint8_t	w2:6, w3_hi:2;
+	uint8_t	w3_lo:4, w4_hi:4;
+	uint8_t	w4_lo:1, w5:5, w6_hi:2;
+	uint8_t	w6_lo:3, w7:5;
+	uint8_t	w8:4, w9:4;
+	uint8_t	w10:4, w11:4;
+	uint8_t	w12:4, w13:4;
+	uint8_t	w14:4, w15:4;
+	uint8_t	w16:3, w17:3, w18_hi:2;
+	uint8_t	w18_lo:1, w19:3, w20:3, w21_hi:1;
+	uint8_t	w21_lo:2, w22:3, w23:3;
+	uint8_t	w24:3, w25:3, w26_hi:2;
+	uint8_t	w26_lo:1, w27:3, w28:3, spare:1;
+#endif
 } __attribute__ ((packed));
 #else
 struct gsm48_range_128 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	 form_id:7,
 		orig_arfcn_hi:1;
 	uint8_t	orig_arfcn_mid;
@@ -353,17 +506,44 @@ struct gsm48_range_128 {
 		 w27:3,
 		 w28:3,
 		spare:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	 orig_arfcn_hi:1, form_id:7;
+	uint8_t	orig_arfcn_mid;
+	uint8_t	 w1:7, orig_arfcn_lo:1;
+	uint8_t	 w3_hi:2, w2:6;
+	uint8_t	 w4_hi:4, w3_lo:4;
+	uint8_t	 w6_hi:2, w5:5, w4_lo:1;
+	uint8_t	 w7:5, w6_lo:3;
+	uint8_t	 w9:4, w8:4;
+	uint8_t	 w11:4, w10:4;
+	uint8_t	 w13:4, w12:4;
+	uint8_t	 w15:4, w14:4;
+	uint8_t	 w18_hi:2, w17:3, w16:3;
+	uint8_t	 w21_hi:1, w20:3, w19:3, w18_lo:1;
+	uint8_t	 w23:3, w22:3, w21_lo:2;
+	uint8_t	 w26_hi:2, w25:3, w24:3;
+	uint8_t	 spare:1, w28:3, w27:3, w26_lo:1;
+#endif
 } __attribute__ ((packed));
 #endif
 
 /* Chapter 10.5.2.1b.7 */
 struct gsm48_var_bit {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	orig_arfcn_hi:1,
 		 form_id:7;
 	uint8_t	orig_arfcn_mid;
 	uint8_t	rrfcn1_7:7,
 		 orig_arfcn_lo:1;
 	uint8_t rrfcn8_111[13];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	form_id:7, orig_arfcn_hi:1;
+	uint8_t	orig_arfcn_mid;
+	uint8_t	orig_arfcn_lo:1, rrfcn1_7:7;
+	uint8_t rrfcn8_111[13];
+#endif
 } __attribute__ ((packed));
 
 /* Chapter 10.5.2.5 */
@@ -371,24 +551,37 @@ struct gsm48_chan_desc {
 	uint8_t chan_nr;
 	union {
 		struct {
+#if OSMO_IS_LITTLE_ENDIAN
 			uint8_t maio_high:4,
 				 h:1,
 				 tsc:3;
 			uint8_t hsn:6,
 				 maio_low:2;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+			uint8_t tsc:3, h:1, maio_high:4;
+			uint8_t maio_low:2, hsn:6;
+#endif
 		} __attribute__ ((packed)) h1;
 		struct {
+#if OSMO_IS_LITTLE_ENDIAN
 			uint8_t arfcn_high:2,
 				 spare:2,
 				 h:1,
 				 tsc:3;
 			uint8_t arfcn_low;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+			uint8_t tsc:3, h:1, spare:2, arfcn_high:2;
+			uint8_t arfcn_low;
+#endif
 		} __attribute__ ((packed)) h0;
 	} __attribute__ ((packed));
 } __attribute__ ((packed));
 
 /* Chapter 10.5.2.20 */
 struct gsm48_meas_res {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t	rxlev_full:6,
 		 dtx_used:1,
 		 ba_used:1;
@@ -428,10 +621,30 @@ struct gsm48_meas_res {
 		 rxlev_nc6_lo:5;
 	uint8_t	bsic_nc6:6,
 		 bcch_f_nc6_lo:2;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t	ba_used:1, dtx_used:1, rxlev_full:6;
+	uint8_t	spare:1, meas_valid:1, rxlev_sub:6;
+	uint8_t	spare2:1, rxqual_full:3, rxqual_sub:3, no_nc_n_hi:1;
+	uint8_t	no_nc_n_lo:2, rxlev_nc1:6;
+	uint8_t	bcch_f_nc1:5, bsic_nc1_hi:3;
+	uint8_t	bsic_nc1_lo:3, rxlev_nc2_hi:5;
+	uint8_t	rxlev_nc2_lo:1, bcch_f_nc2:5, bsic_nc2_hi:2;
+	uint8_t	bsic_nc2_lo:4, rxlev_nc3_hi:4;
+	uint8_t	rxlev_nc3_lo:2, bcch_f_nc3:5, bsic_nc3_hi:1;
+	uint8_t	bsic_nc3_lo:5, rxlev_nc4_hi:3;
+	uint8_t	rxlev_nc4_lo:3, bcch_f_nc4:5;
+	uint8_t	bsic_nc4:6, rxlev_nc5_hi:2;
+	uint8_t	rxlev_nc5_lo:4, bcch_f_nc5_hi:4;
+	uint8_t	bcch_f_nc5_lo:1, bsic_nc5:6, rxlev_nc6_hi:1;
+	uint8_t	rxlev_nc6_lo:5, bcch_f_nc6_hi:3;
+	uint8_t	bcch_f_nc6_lo:2, bsic_nc6:6;
+#endif
 } __attribute__ ((packed));
 
 /* Chapter 10.5.2.21aa */
 struct gsm48_multi_rate_conf {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t smod : 2,
 		 spare: 1,
 		 icmi : 1,
@@ -445,23 +658,40 @@ struct gsm48_multi_rate_conf {
 		 m7_95 : 1,
 		 m10_2 : 1,
 		 m12_2 : 1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t ver:3, nscb:1, icmi:1, spare:1, smod:2;
+	uint8_t m12_2:1, m10_2:1, m7_95:1, m7_40:1, m6_70:1, m5_90:1, m5_15:1, m4_75:1;
+#endif
 } __attribute__((packed));
 
 /* Chapter 10.5.2.28(a) */
 struct gsm48_power_cmd {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t power_level:5,
 		 spare:2,
 		 atc:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t atc:1, spare:2, power_level:5;
+#endif
 } __attribute__((packed));
 
 /* Chapter 10.5.2.29 */
 struct gsm48_rach_control {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t re :1,
 		 cell_bar :1,
 		 tx_integer :4,
 		 max_trans :2;
 	uint8_t t2; /* ACC 8-15 barred flags */
 	uint8_t t3; /* ACC 0-7 barred flags */
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t max_trans:2, tx_integer:4, cell_bar:1, re:1;
+	uint8_t t2;
+	uint8_t t3;
+#endif
 } __attribute__ ((packed));
 
 /*
@@ -508,27 +738,45 @@ static inline bool gsm48_acc_is_barred(struct gsm48_rach_control *rach_control,
 
 /* Chapter 10.5.2.30 */
 struct gsm48_req_ref {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t ra;
 	uint8_t t3_high:3,
 		 t1:5;
 	uint8_t t2:5,
 		 t3_low:3;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t ra;
+	uint8_t t1:5, t3_high:3;
+	uint8_t t3_low:3, t2:5;
+#endif
 } __attribute__ ((packed));
 
 /* Chapter 10.5.2.38 */
 struct gsm48_start_time {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t t3_high:3,
 		 t1:5;
 	uint8_t t2:5,
 		 t3_low:3;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t t1:5, t3_high:3;
+	uint8_t t3_low:3, t2:5;
+#endif
 } __attribute__ ((packed));
 
 /* Chapter 10.5.2.39 */
 struct gsm48_sync_ind {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t si:2,
 		 rot:1,
 		 nci:1,
 		 sync_ie:4;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t sync_ie:4, nci:1, rot:1, si:2;
+#endif
 } __attribute__((packed));
 
 /*
@@ -582,10 +830,16 @@ struct gsm48_gprs_susp_req {
 
 /* Chapter 10.5.2.2 */
 struct gsm48_cell_desc {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t bcc:3,
 		 ncc:3,
 		 arfcn_hi:2;
 	uint8_t arfcn_lo;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t arfcn_hi:2, ncc:3, bcc:3;
+	uint8_t arfcn_lo;
+#endif
 } __attribute__((packed));
 
 /* Chapter 9.1.15 */
@@ -612,11 +866,19 @@ struct gsm48_imm_ass {
 
 /* Chapter 9.1.25 */
 struct gsm48_pag_resp {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t spare:4,
 		 key_seq:4;
 	uint32_t classmark2;
 	uint8_t mi_len;
 	uint8_t mi[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t key_seq:4, spare:4;
+	uint32_t classmark2;
+	uint8_t mi_len;
+	uint8_t mi[0];
+#endif
 } __attribute__ ((packed));
 
 /* Chapter 10.5.1.3 */
@@ -627,9 +889,15 @@ struct gsm48_loc_area_id {
 
 /* Section 9.2.2 */
 struct gsm48_auth_req {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t key_seq:4,
 	         spare:4;
 	uint8_t rand[16];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t spare:4, key_seq:4;
+	uint8_t rand[16];
+#endif
 } __attribute__ ((packed));
 
 /* Section 9.2.3 */
@@ -639,12 +907,21 @@ struct gsm48_auth_resp {
 
 /* Section 9.2.15 */
 struct gsm48_loc_upd_req {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t type:4,
 		 key_seq:4;
 	struct gsm48_loc_area_id lai;
 	struct gsm48_classmark1 classmark1;
 	uint8_t mi_len;
 	uint8_t mi[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t key_seq:4, type:4;
+	struct gsm48_loc_area_id lai;
+	struct gsm48_classmark1 classmark1;
+	uint8_t mi_len;
+	uint8_t mi[0];
+#endif
 } __attribute__ ((packed));
 
 /* Section 10.1 */
@@ -656,23 +933,37 @@ struct gsm48_hdr {
 
 /* Section 9.1.3x System information Type header */
 struct gsm48_system_information_type_header {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t l2_plen;
 	uint8_t rr_protocol_discriminator :4,
 		skip_indicator:4; 
 	uint8_t system_information;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t l2_plen;
+	uint8_t skip_indicator:4, rr_protocol_discriminator:4;
+	uint8_t system_information;
+#endif
 } __attribute__ ((packed));
 
 /* Section 10.5.2.4 Cell Selection Parameters */
 struct gsm48_cell_sel_par {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t ms_txpwr_max_ccch:5,	/* GSM 05.08 MS-TXPWR-MAX-CCCH */
 		 cell_resel_hyst:3;	/* GSM 05.08 CELL-RESELECT-HYSTERESIS */
 	uint8_t rxlev_acc_min:6,	/* GSM 05.08 RXLEV-ACCESS-MIN */
 		 neci:1,
 		 acs:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t cell_resel_hyst:3, ms_txpwr_max_ccch:5;
+	uint8_t acs:1, neci:1, rxlev_acc_min:6;
+#endif
 } __attribute__ ((packed));
 
 /* 3GPP TS 44.018 Section 10.5.2.11 Control Channel Description */
 struct gsm48_control_channel_descr {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t ccch_conf :3,
 		bs_ag_blks_res :3,
 		att :1,
@@ -682,6 +973,12 @@ struct gsm48_control_channel_descr {
 		cbq3 :2,
 		spare_2 :1;
 	uint8_t t3212;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t mscr:1, att:1, bs_ag_blks_res:3, ccch_conf:3;
+	uint8_t spare_2:1, cbq3:2, spare_1:2, bs_pa_mfrms:3;
+	uint8_t t3212;
+#endif
 } __attribute__ ((packed));
 
 enum gsm48_dtx_mode {
@@ -693,15 +990,21 @@ enum gsm48_dtx_mode {
 /* Cell Options for SI6, SACCH (10.5.2.3a.2) or SI3, BCCH (Table 10.5.2.3.1),
    3GPP TS 44.018 */
 struct gsm48_cell_options {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t radio_link_timeout:4,
 		 dtx:2,
 		 pwrc:1,
 	/* either DN-IND or top bit of DTX IND */
 		 d:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t d:1, pwrc:1, dtx:2, radio_link_timeout:4;
+#endif
 } __attribute__ ((packed));
 
 /* Section 9.2.9 CM service request */
 struct gsm48_service_request {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t cm_service_type : 4,
 		 cipher_key_seq  : 4;
 	/* length + 3 bytes */
@@ -709,6 +1012,13 @@ struct gsm48_service_request {
 	uint8_t mi_len;
 	uint8_t mi[0];
 	/* optional priority level */
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t cipher_key_seq:4, cm_service_type:4;
+	uint32_t classmark;
+	uint8_t mi_len;
+	uint8_t mi[0];
+#endif
 } __attribute__ ((packed));
 
 /* Section 9.1.31 System information Type 1 */
@@ -774,30 +1084,52 @@ struct gsm48_system_information_type_4 {
 
 /* Section 9.1.37 System information Type 5 */
 struct gsm48_system_information_type_5 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t rr_protocol_discriminator :4,
 		skip_indicator:4; 
 	uint8_t system_information;
 	uint8_t bcch_frequency_list[16];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t skip_indicator:4, rr_protocol_discriminator:4;
+	uint8_t system_information;
+	uint8_t bcch_frequency_list[16];
+#endif
 } __attribute__ ((packed));
 
 /* Section 9.1.38 System information Type 5bis */
 struct gsm48_system_information_type_5bis {
+#if OSMO_IS_LITTLE_ENDIAN
         uint8_t rr_protocol_discriminator :4,
 		 skip_indicator:4;
 	uint8_t system_information;
 	uint8_t bcch_frequency_list[16];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+        uint8_t skip_indicator:4, rr_protocol_discriminator:4;
+	uint8_t system_information;
+	uint8_t bcch_frequency_list[16];
+#endif
 } __attribute__ ((packed));
 
 /* Section 9.1.39 System information Type 5ter */
 struct gsm48_system_information_type_5ter {
+#if OSMO_IS_LITTLE_ENDIAN
         uint8_t rr_protocol_discriminator :4,
 		 skip_indicator:4;
 	uint8_t system_information;
 	uint8_t bcch_frequency_list[16];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+        uint8_t skip_indicator:4, rr_protocol_discriminator:4;
+	uint8_t system_information;
+	uint8_t bcch_frequency_list[16];
+#endif
 } __attribute__ ((packed));
 
 /* Section 9.1.40 System information Type 6 */
 struct gsm48_system_information_type_6 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t rr_protocol_discriminator :4,
 		skip_indicator:4; 
 	uint8_t system_information;
@@ -806,6 +1138,16 @@ struct gsm48_system_information_type_6 {
 	struct gsm48_cell_options cell_options;
 	uint8_t ncc_permitted;
 	uint8_t rest_octets[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t skip_indicator:4, rr_protocol_discriminator:4;
+	uint8_t system_information;
+	uint16_t cell_identity;
+	struct gsm48_loc_area_id lai;
+	struct gsm48_cell_options cell_options;
+	uint8_t ncc_permitted;
+	uint8_t rest_octets[0];
+#endif
 } __attribute__ ((packed));
 
 /* Section 9.1.43a System Information type 13 */
@@ -857,10 +1199,15 @@ struct gsm48_chan_rel {
 
 /* Section 9.1.9 */
 struct gsm48_cip_mode_cmd {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t sc:1,
 		 alg_id:3,
 		 cr:1,
 		 spare:3;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t spare:3, cr:1, alg_id:3, sc:1;
+#endif
 } __attribute__((packed));
 
 /* Section 9.1.11 */
@@ -905,6 +1252,7 @@ struct gsm48_imm_ass_rej {
 
 /* Section 9.1.22 */
 struct gsm48_paging1 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t l2_plen;
 	uint8_t proto_discr;
 	uint8_t msg_type;
@@ -913,10 +1261,19 @@ struct gsm48_paging1 {
 		 cneed1:2,
 		 cneed2:2;
 	uint8_t data[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t l2_plen;
+	uint8_t proto_discr;
+	uint8_t msg_type;
+	uint8_t cneed2:2, cneed1:2, spare:2, pag_mode:2;
+	uint8_t data[0];
+#endif
 } __attribute__((packed));
 
 /* Section 9.1.23 */
 struct gsm48_paging2 {
+#if OSMO_IS_LITTLE_ENDIAN
 	uint8_t l2_plen;
 	uint8_t proto_discr;
 	uint8_t msg_type;
@@ -927,10 +1284,21 @@ struct gsm48_paging2 {
 	uint32_t tmsi1;
 	uint32_t tmsi2;
 	uint8_t data[0];
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+	uint8_t l2_plen;
+	uint8_t proto_discr;
+	uint8_t msg_type;
+	uint8_t cneed2:2, cneed1:2, spare:2, pag_mode:2;
+	uint32_t tmsi1;
+	uint32_t tmsi2;
+	uint8_t data[0];
+#endif