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-rw-r--r--src/gprs/gprs_sndcp.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/gprs/gprs_sndcp.c b/src/gprs/gprs_sndcp.c
index f0239cb..1eeafe2 100644
--- a/src/gprs/gprs_sndcp.c
+++ b/src/gprs/gprs_sndcp.c
@@ -28,6 +28,7 @@
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/talloc.h>
+#include <osmocom/core/endian.h>
#include <osmocom/gprs/gprs_bssgp.h>
#include <osmocom/sgsn/debug.h>
@@ -163,27 +164,43 @@ static void debug_ip_packet(uint8_t *data, int len, int dir, char *info)
/* Chapter 7.2: SN-PDU Formats */
struct sndcp_common_hdr {
+#if OSMO_IS_LITTLE_ENDIAN
/* octet 1 */
uint8_t nsapi:4;
uint8_t more:1;
uint8_t type:1;
uint8_t first:1;
uint8_t spare:1;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ uint8_t spare:1, first:1, type:1, more:1, nsapi:4;
+#endif
} __attribute__((packed));
/* PCOMP / DCOMP only exist in first fragment */
struct sndcp_comp_hdr {
+#if OSMO_IS_LITTLE_ENDIAN
/* octet 2 */
uint8_t pcomp:4;
uint8_t dcomp:4;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ uint8_t dcomp:4, pcomp:4;
+#endif
} __attribute__((packed));
struct sndcp_udata_hdr {
+#if OSMO_IS_LITTLE_ENDIAN
/* octet 3 */
uint8_t npdu_high:4;
uint8_t seg_nr:4;
/* octet 4 */
uint8_t npdu_low;
+#elif OSMO_IS_BIG_ENDIAN
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
+ uint8_t seg_nr:4, npdu_high:4;
+ uint8_t npdu_low;
+#endif
} __attribute__((packed));