diff --git a/openbsc/include/openbsc/Makefile.am b/openbsc/include/openbsc/Makefile.am
index d42f775..631a74e 100644
--- a/openbsc/include/openbsc/Makefile.am
+++ b/openbsc/include/openbsc/Makefile.am
@@ -8,7 +8,7 @@
 		 vty.h socket.h e1_config.h trau_upqueue.h token_auth.h \
 		 handover_decision.h rrlp.h \
 		crc24.h gprs_llc.h gprs_gmm.h \
-		gb_proxy.h gprs_sgsn.h gsm_04_08_gprs.h sgsn.h \
+		gb_proxy.h gprs_sgsn.h sgsn.h \
 		auth.h osmo_msc.h bsc_msc.h bsc_nat.h \
 		osmo_bsc_rf.h osmo_bsc.h network_listen.h bsc_nat_sccp.h \
 		osmo_msc_data.h osmo_bsc_grace.h sms_queue.h abis_om2000.h \
diff --git a/openbsc/include/openbsc/gprs_gsup_messages.h b/openbsc/include/openbsc/gprs_gsup_messages.h
index 66a75a8..c4e9757 100644
--- a/openbsc/include/openbsc/gprs_gsup_messages.h
+++ b/openbsc/include/openbsc/gprs_gsup_messages.h
@@ -22,8 +22,7 @@
 #pragma once
 
 #include <stdint.h>
-#include <openbsc/gsm_04_08_gprs.h>
-#include <openbsc/gsm_data.h>
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 /* Needed for GSM_IMSI_LENGTH: */
 #include <openbsc/gsm_subscriber.h>
 
diff --git a/openbsc/include/openbsc/gsm_04_08_gprs.h b/openbsc/include/openbsc/gsm_04_08_gprs.h
deleted file mode 100644
index f35d11b..0000000
--- a/openbsc/include/openbsc/gsm_04_08_gprs.h
+++ /dev/null
@@ -1,397 +0,0 @@
-#ifndef _GSM48_GPRS_H
-#define _GSM48_GPRS_H
-
-#include <stdint.h>
-#include <osmocom/gsm/protocol/gsm_04_08.h>
-
-/* Table 10.4 / 10.4a, GPRS Mobility Management (GMM) */
-#define GSM48_MT_GMM_ATTACH_REQ		0x01
-#define GSM48_MT_GMM_ATTACH_ACK		0x02
-#define GSM48_MT_GMM_ATTACH_COMPL	0x03
-#define GSM48_MT_GMM_ATTACH_REJ		0x04
-#define GSM48_MT_GMM_DETACH_REQ		0x05
-#define GSM48_MT_GMM_DETACH_ACK		0x06
-
-#define GSM48_MT_GMM_RA_UPD_REQ		0x08
-#define GSM48_MT_GMM_RA_UPD_ACK		0x09
-#define GSM48_MT_GMM_RA_UPD_COMPL	0x0a
-#define GSM48_MT_GMM_RA_UPD_REJ		0x0b
-
-#define GSM48_MT_GMM_PTMSI_REALL_CMD	0x10
-#define GSM48_MT_GMM_PTMSI_REALL_COMPL	0x11
-#define GSM48_MT_GMM_AUTH_CIPH_REQ	0x12
-#define GSM48_MT_GMM_AUTH_CIPH_RESP	0x13
-#define GSM48_MT_GMM_AUTH_CIPH_REJ	0x14
-#define GSM48_MT_GMM_ID_REQ		0x15
-#define GSM48_MT_GMM_ID_RESP		0x16
-#define GSM48_MT_GMM_STATUS		0x20
-#define GSM48_MT_GMM_INFO		0x21
-
-/* Table 10.4a, GPRS Session Management (GSM) */
-#define GSM48_MT_GSM_ACT_PDP_REQ	0x41
-#define GSM48_MT_GSM_ACT_PDP_ACK	0x42
-#define GSM48_MT_GSM_ACT_PDP_REJ	0x43
-#define GSM48_MT_GSM_REQ_PDP_ACT	0x44
-#define GSM48_MT_GSM_REQ_PDP_ACT_REJ	0x45
-#define GSM48_MT_GSM_DEACT_PDP_REQ	0x46
-#define GSM48_MT_GSM_DEACT_PDP_ACK	0x47
-#define GSM48_MT_GSM_ACT_AA_PDP_REQ	0x50
-#define GSM48_MT_GSM_ACT_AA_PDP_ACK	0x51
-#define GSM48_MT_GSM_ACT_AA_PDP_REJ	0x52
-#define GSM48_MT_GSM_DEACT_AA_PDP_REQ	0x53
-#define GSM48_MT_GSM_DEACT_AA_PDP_ACK	0x54
-#define GSM48_MT_GSM_STATUS		0x55
-
-/* Chapter 10.5.5.2 / Table 10.5.135 */
-#define GPRS_ATT_T_ATTACH		1
-#define GPRS_ATT_T_ATT_WHILE_IMSI	2
-#define GPRS_ATT_T_COMBINED		3
-
-extern const struct value_string *gprs_att_t_strs;
-
-/* Chapter 10.5.5.5 / Table 10.5.138 */
-#define GPRS_DET_T_MO_GPRS		1
-#define GPRS_DET_T_MO_IMSI		2
-#define GPRS_DET_T_MO_COMBINED		3
-/* Network to MS direction */
-#define GPRS_DET_T_MT_REATT_REQ		1
-#define GPRS_DET_T_MT_REATT_NOTREQ	2
-#define GPRS_DET_T_MT_IMSI		3
-
-extern const struct value_string *gprs_det_t_mo_strs;
-extern const struct value_string *gprs_det_t_mt_strs;
-
-/* Chapter 10.5.5.18 / Table 105.150 */
-#define GPRS_UPD_T_RA			0
-#define GPRS_UPD_T_RA_LA		1
-#define GPRS_UPD_T_RA_LA_IMSI_ATT	2
-#define GPRS_UPD_T_PERIODIC		3
-
-extern const struct value_string *gprs_upd_t_strs;
-
-enum gsm48_gprs_ie_mm {
-	GSM48_IE_GMM_CIPH_CKSN		= 0x08, /* 10.5.1.2 */
-	GSM48_IE_GMM_TIMER_READY	= 0x17,	/* 10.5.7.3 */
-	GSM48_IE_GMM_ALLOC_PTMSI	= 0x18,	/* 10.5.1.4 */
-	GSM48_IE_GMM_PTMSI_SIG		= 0x19,	/* 10.5.5.8 */
-	GSM48_IE_GMM_AUTH_RAND		= 0x21,	/* 10.5.3.1 */
-	GSM48_IE_GMM_AUTH_SRES		= 0x22,	/* 10.5.3.2 */
-	GSM48_IE_GMM_IMEISV		= 0x23,	/* 10.5.1.4 */
-	GSM48_IE_GMM_CAUSE		= 0x25,	/* 10.5.5.14 */
-	GSM48_IE_GMM_DRX_PARAM		= 0x27,	/* 10.5.5.6 */
-	GSM48_IE_GMM_MS_NET_CAPA	= 0x31,	/* 10.5.5.12 */
-	GSM48_IE_GMM_PDP_CTX_STATUS	= 0x32,	/* 10.5.7.1 */
-	GSM48_IE_GMM_PS_LCS_CAPA	= 0x33,	/* 10.5.5.22 */
-	GSM48_IE_GMM_GMM_MBMS_CTX_ST	= 0x35,	/* 10.5.7.6 */
-};
-
-enum gsm48_gprs_ie_sm {
-	GSM48_IE_GSM_APN		= 0x28,	/* 10.5.6.1 */
-	GSM48_IE_GSM_PROTO_CONF_OPT	= 0x27,	/* 10.5.6.3 */
-	GSM48_IE_GSM_PDP_ADDR		= 0x2b, /* 10.5.6.4 */
-	GSM48_IE_GSM_AA_TMR		= 0x29,	/* 10.5.7.3 */
-	GSM48_IE_GSM_NAME_FULL		= 0x43, /* 10.5.3.5a */
-	GSM48_IE_GSM_NAME_SHORT		= 0x45, /* 10.5.3.5a */
-	GSM48_IE_GSM_TIMEZONE		= 0x46, /* 10.5.3.8 */
-	GSM48_IE_GSM_UTC_AND_TZ		= 0x47, /* 10.5.3.9 */
-	GSM48_IE_GSM_LSA_ID		= 0x48, /* 10.5.3.11 */
-
-	/* Fake IEs that are not present on the Layer3 air interface,
-	 * but which we use to simplify internal APIs */
-	OSMO_IE_GSM_REQ_QOS		= 0xfd,
-	OSMO_IE_GSM_REQ_PDP_ADDR	= 0xfe,
-	OSMO_IE_GSM_SUB_QOS		= 0xff,
-};
-
-/* Chapter 9.4.15 / Table 9.4.15 */
-struct gsm48_ra_upd_ack {
-	uint8_t force_stby:4,	/* 10.5.5.7 */
-		 upd_result:4;	/* 10.5.5.17 */
-	uint8_t ra_upd_timer;	/* 10.5.7.3 */
-	struct gsm48_ra_id ra_id; /* 10.5.5.15 */
-	uint8_t data[0];
-} __attribute__((packed));
-
-/* Chapter 10.5.7.3 */
-enum gsm48_gprs_tmr_unit {
-	GPRS_TMR_2SECONDS	= 0 << 5,
-	GPRS_TMR_MINUTE		= 1 << 5,
-	GPRS_TMR_6MINUTE	= 2 << 5,
-	GPRS_TMR_DEACTIVATED	= 7 << 5,
-};
-
-#define GPRS_TMR_UNIT_MASK (7 << 5)
-#define GPRS_TMR_FACT_MASK ((1 << 5)-1)
-
-/* Chapter 9.4.2 / Table 9.4.2 */
-struct gsm48_attach_ack {
-	uint8_t att_result:4,	/* 10.5.5.7 */
-		 force_stby:4;	/* 10.5.5.1 */
-	uint8_t ra_upd_timer;	/* 10.5.7.3 */
-	uint8_t radio_prio;	/* 10.5.7.2 */
-	struct gsm48_ra_id ra_id; /* 10.5.5.15 */
-	uint8_t data[0];
-} __attribute__((packed));
-
-/* Chapter 9.4.9 / Table 9.4.9 */
-struct gsm48_auth_ciph_req {
-	uint8_t ciph_alg:4,	/* 10.5.5.3 */
-		imeisv_req:4;	/* 10.5.5.10 */
-	uint8_t force_stby:4,	/* 10.5.5.7 */
-		ac_ref_nr:4;	/* 10.5.5.19 */
-	uint8_t data[0];
-} __attribute__((packed));
-/* optional: TV RAND, TV CKSN */
-
-struct gsm48_auth_ciph_resp {
-	uint8_t ac_ref_nr:4,
-		spare:4;
-	uint8_t data[0];
-} __attribute__((packed));
-
-/* Chapter 9.5.1 / Table 9.5.1 */
-struct gsm48_act_pdp_ctx_req {
-	uint8_t req_nsapi;
-	uint8_t req_llc_sapi;
-	uint8_t data[0];
-} __attribute__((packed));
-
-/* Chapter 10.5.5.14 / Table 10.5.147 */
-enum gsm48_gmm_cause {
-	GMM_CAUSE_IMSI_UNKNOWN		= 0x02,
-	GMM_CAUSE_ILLEGAL_MS		= 0x03,
-	GMM_CAUSE_ILLEGAL_ME		= 0x06,
-	GMM_CAUSE_GPRS_NOTALLOWED	= 0x07,
-	GMM_CAUSE_GPRS_OTHER_NOTALLOWED	= 0x08,
-	GMM_CAUSE_MS_ID_NOT_DERIVED	= 0x09,
-	GMM_CAUSE_IMPL_DETACHED		= 0x0a,
-	GMM_CAUSE_PLMN_NOTALLOWED	= 0x0b,
-	GMM_CAUSE_LA_NOTALLOWED		= 0x0c,
-	GMM_CAUSE_ROAMING_NOTALLOWED	= 0x0d,
-	GMM_CAUSE_NO_GPRS_PLMN		= 0x0e,
-	GMM_CAUSE_MSC_TEMP_NOTREACH	= 0x10,
-	GMM_CAUSE_NET_FAIL		= 0x11,
-	GMM_CAUSE_CONGESTION		= 0x16,
-	GMM_CAUSE_SEM_INCORR_MSG	= 0x5f,
-	GMM_CAUSE_INV_MAND_INFO		= 0x60,
-	GMM_CAUSE_MSGT_NOTEXIST_NOTIMPL	= 0x61,
-	GMM_CAUSE_MSGT_INCOMP_P_STATE	= 0x62,
-	GMM_CAUSE_IE_NOTEXIST_NOTIMPL	= 0x63,
-	GMM_CAUSE_COND_IE_ERR		= 0x64,
-	GMM_CAUSE_MSG_INCOMP_P_STATE	= 0x65,
-	GMM_CAUSE_PROTO_ERR_UNSPEC	= 0x6f,
-};
-
-extern const struct value_string *gsm48_gmm_cause_names;
-
-/* Chapter 10.4.6.6 / Table 10.5.157 */
-enum gsm48_gsm_cause {
-	GSM_CAUSE_INSUFF_RSRC		= 0x1a,
-	GSM_CAUSE_MISSING_APN		= 0x1b,
-	GSM_CAUSE_UNKNOWN_PDP		= 0x1c,
-	GSM_CAUSE_AUTH_FAILED		= 0x1d,
-	GSM_CAUSE_ACT_REJ_GGSN		= 0x1e,
-	GSM_CAUSE_ACT_REJ_UNSPEC	= 0x1f,
-	GSM_CAUSE_SERV_OPT_NOTSUPP	= 0x20,
-	GSM_CAUSE_REQ_SERV_OPT_NOTSUB	= 0x21,
-	GSM_CAUSE_SERV_OPT_TEMP_OOO	= 0x22,
-	GSM_CAUSE_NSAPI_IN_USE		= 0x23,
-	GSM_CAUSE_DEACT_REGULAR		= 0x24,
-	GSM_CAUSE_QOS_NOT_ACCEPTED	= 0x25,
-	GSM_CAUSE_NET_FAIL		= 0x26,
-	GSM_CAUSE_REACT_RQD		= 0x27,
-	GSM_CAUSE_FEATURE_NOTSUPP	= 0x28,
-	GSM_CAUSE_INVALID_TRANS_ID	= 0x51,
-	GSM_CAUSE_SEM_INCORR_MSG	= 0x5f,
-	GSM_CAUSE_INV_MAND_INFO		= 0x60,
-	GSM_CAUSE_MSGT_NOTEXIST_NOTIMPL	= 0x61,
-	GSM_CAUSE_MSGT_INCOMP_P_STATE	= 0x62,
-	GSM_CAUSE_IE_NOTEXIST_NOTIMPL	= 0x63,
-	GSM_CAUSE_COND_IE_ERR		= 0x64,
-	GSM_CAUSE_MSG_INCOMP_P_STATE	= 0x65,
-	GSM_CAUSE_PROTO_ERR_UNSPEC	= 0x6f,
-};
-
-extern const struct value_string *gsm48_gsm_cause_names;
-
-/* Section 6.1.2.2: Session management states on the network side */
-enum gsm48_pdp_state {
-	PDP_S_INACTIVE,
-	PDP_S_ACTIVE_PENDING,
-	PDP_S_ACTIVE,
-	PDP_S_INACTIVE_PENDING,
-	PDP_S_MODIFY_PENDING,
-};
-
-/* Table 10.5.155/3GPP TS 24.008 */
-enum gsm48_pdp_type_org {
-	PDP_TYPE_ORG_ETSI		= 0x00,
-	PDP_TYPE_ORG_IETF		= 0x01,
-};
-enum gsm48_pdp_type_nr {
-	PDP_TYPE_N_ETSI_RESERVED	= 0x00,
-	PDP_TYPE_N_ETSI_PPP		= 0x01,
-	PDP_TYPE_N_IETF_IPv4		= 0x21,
-	PDP_TYPE_N_IETF_IPv6		= 0x57,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_reliab_class {
-	GSM48_QOS_RC_LLC_ACK_RLC_ACK_DATA_PROT	= 2,
-	GSM48_QOS_RC_LLC_UN_RLC_ACK_DATA_PROT	= 3,
-	GSM48_QOS_RC_LLC_UN_RLC_UN_PROT_DATA	= 4,
-	GSM48_QOS_RC_LLC_UN_RLC_UN_DATA_UN	= 5,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_preced_class {
-	GSM48_QOS_PC_HIGH	= 1,
-	GSM48_QOS_PC_NORMAL	= 2,
-	GSM48_QOS_PC_LOW	= 3,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_peak_tput {
-	GSM48_QOS_PEAK_TPUT_1000bps	= 1,
-	GSM48_QOS_PEAK_TPUT_2000bps	= 2,
-	GSM48_QOS_PEAK_TPUT_4000bps	= 3,
-	GSM48_QOS_PEAK_TPUT_8000bps	= 4,
-	GSM48_QOS_PEAK_TPUT_16000bps	= 5,
-	GSM48_QOS_PEAK_TPUT_32000bps	= 6,
-	GSM48_QOS_PEAK_TPUT_64000bps	= 7,
-	GSM48_QOS_PEAK_TPUT_128000bps	= 8,
-	GSM48_QOS_PEAK_TPUT_256000bps	= 9,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_mean_tput {
-	GSM48_QOS_MEAN_TPUT_100bph	= 1,
-	GSM48_QOS_MEAN_TPUT_200bph	= 2,
-	GSM48_QOS_MEAN_TPUT_500bph	= 3,
-	GSM48_QOS_MEAN_TPUT_1000bph	= 4,
-	GSM48_QOS_MEAN_TPUT_2000bph	= 5,
-	GSM48_QOS_MEAN_TPUT_5000bph	= 6,
-	GSM48_QOS_MEAN_TPUT_10000bph	= 7,
-	GSM48_QOS_MEAN_TPUT_20000bph	= 8,
-	GSM48_QOS_MEAN_TPUT_50000bph	= 9,
-	GSM48_QOS_MEAN_TPUT_100kbph	= 10,
-	GSM48_QOS_MEAN_TPUT_200kbph	= 11,
-	GSM48_QOS_MEAN_TPUT_500kbph	= 0xc,
-	GSM48_QOS_MEAN_TPUT_1Mbph	= 0xd,
-	GSM48_QOS_MEAN_TPUT_2Mbph	= 0xe,
-	GSM48_QOS_MEAN_TPUT_5Mbph	= 0xf,
-	GSM48_QOS_MEAN_TPUT_10Mbph	= 0x10,
-	GSM48_QOS_MEAN_TPUT_20Mbph	= 0x11,
-	GSM48_QOS_MEAN_TPUT_50Mbph	= 0x12,
-	GSM48_QOS_MEAN_TPUT_BEST_EFFORT	= 0x1f,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_err_sdu {
-	GSM48_QOS_ERRSDU_NODETECT	= 1,
-	GSM48_QOS_ERRSDU_YES		= 2,
-	GSM48_QOS_ERRSDU_NO		= 3,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_deliv_order {
-	GSM48_QOS_DO_ORDERED		= 1,
-	GSM48_QOS_DO_UNORDERED		= 2,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_traf_class {
-	GSM48_QOS_TC_CONVERSATIONAL	= 1,
-	GSM48_QOS_TC_STREAMING		= 2,
-	GSM48_QOS_TC_INTERACTIVE	= 3,
-	GSM48_QOS_TC_BACKGROUND		= 4,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_max_sdu_size {
-	/* values below in 10 octet granularity */
-	GSM48_QOS_MAXSDU_1502		= 0x97,
-	GSM48_QOS_MAXSDU_1510		= 0x98,
-	GSM48_QOS_MAXSDU_1520		= 0x99,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_max_bitrate {
-	GSM48_QOS_MBRATE_1k		= 0x01,
-	GSM48_QOS_MBRATE_63k		= 0x3f,
-	GSM48_QOS_MBRATE_64k		= 0x40,
-	GSM48_QOS_MBRATE_568k		= 0x7f,
-	GSM48_QOS_MBRATE_576k		= 0x80,
-	GSM48_QOS_MBRATE_8640k		= 0xfe,
-	GSM48_QOS_MBRATE_0k		= 0xff,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_resid_ber {
-	GSM48_QOS_RBER_5e_2		= 0x01,
-	GSM48_QOS_RBER_1e_2		= 0x02,
-	GSM48_QOS_RBER_5e_3		= 0x03,
-	GSM48_QOS_RBER_4e_3		= 0x04,
-	GSM48_QOS_RBER_1e_3		= 0x05,
-	GSM48_QOS_RBER_1e_4		= 0x06,
-	GSM48_QOS_RBER_1e_5		= 0x07,
-	GSM48_QOS_RBER_1e_6		= 0x08,
-	GSM48_QOS_RBER_6e_8		= 0x09,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-enum gsm48_qos_sdu_err {
-	GSM48_QOS_SERR_1e_2		= 0x01,
-	GSM48_QOS_SERR_7e_2		= 0x02,
-	GSM48_QOS_SERR_1e_3		= 0x03,
-	GSM48_QOS_SERR_1e_4		= 0x04,
-	GSM48_QOS_SERR_1e_5		= 0x05,
-	GSM48_QOS_SERR_1e_6		= 0x06,
-	GSM48_QOS_SERR_1e_1		= 0x07,
-};
-
-/* Figure 10.5.138/24.008 / Chapter 10.5.6.5 */
-struct gsm48_qos {
-	/* octet 3 */
-	uint8_t reliab_class:3;
-	uint8_t delay_class:3;
-	uint8_t spare:2;
-	/* octet 4 */
-	uint8_t preced_class:3;
-	uint8_t spare2:1;
-	uint8_t peak_tput:4;
-	/* octet 5 */
-	uint8_t mean_tput:5;
-	uint8_t spare3:3;
-	/* octet 6 */
-	uint8_t deliv_err_sdu:3;
-	uint8_t deliv_order:2;
-	uint8_t traf_class:3;
-	/* octet 7 */
-	uint8_t max_sdu_size;
-	/* octet 8 */
-	uint8_t max_bitrate_up;
-	/* octet 9 */
-	uint8_t max_bitrate_down;
-	/* octet 10 */
-	uint8_t sdu_err_ratio:4;
-	uint8_t resid_ber:4;
-	/* octet 11 */
-	uint8_t handling_prio:2;
-	uint8_t xfer_delay:6;
-	/* octet 12 */
-	uint8_t guar_bitrate_up;
-	/* octet 13 */
-	uint8_t guar_bitrate_down;
-	/* octet 14 */
-	uint8_t src_stats_desc:4;
-	uint8_t sig_ind:1;
-	uint8_t spare5:3;
-	/* octet 15 */
-	uint8_t max_bitrate_down_ext;
-	/* octet 16 */
-	uint8_t guar_bitrate_down_ext;
-};
-
-
-#endif /* _GSM48_GPRS_H */
diff --git a/openbsc/include/openbsc/oap_messages.h b/openbsc/include/openbsc/oap_messages.h
index a7a254c..b7f4cca 100644
--- a/openbsc/include/openbsc/oap_messages.h
+++ b/openbsc/include/openbsc/oap_messages.h
@@ -22,7 +22,7 @@
 #pragma once
 
 #include <stdint.h>
-#include <openbsc/gsm_04_08_gprs.h>
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 #include <openbsc/gsm_data.h>
 
 /* Some numbers are out of sequence because (so far) they match gprs_gsup_iei.
diff --git a/openbsc/src/gprs/Makefile.am b/openbsc/src/gprs/Makefile.am
index f406dd7..104bd29 100644
--- a/openbsc/src/gprs/Makefile.am
+++ b/openbsc/src/gprs/Makefile.am
@@ -27,7 +27,7 @@
 			gprs_llc.c gprs_llc_parse.c gprs_llc_vty.c crc24.c \
 			sgsn_ctrl.c sgsn_auth.c gprs_subscriber.c \
 			gprs_gsup_messages.c gprs_utils.c gprs_gsup_client.c \
-			gsm_04_08_gprs.c sgsn_cdr.c sgsn_ares.c \
+			sgsn_cdr.c sgsn_ares.c \
 			oap.c oap_messages.c
 osmo_sgsn_LDADD = 	\
 			$(top_builddir)/src/libcommon/libcommon.a \
diff --git a/openbsc/src/gprs/gb_proxy.c b/openbsc/src/gprs/gb_proxy.c
index 6e6b03b..111f052 100644
--- a/openbsc/src/gprs/gb_proxy.c
+++ b/openbsc/src/gprs/gb_proxy.c
@@ -48,7 +48,7 @@
 
 #include <openbsc/gprs_llc.h>
 #include <openbsc/gsm_04_08.h>
-#include <openbsc/gsm_04_08_gprs.h>
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 #include <openbsc/gprs_utils.h>
 
 #include <openssl/rand.h>
diff --git a/openbsc/src/gprs/gb_proxy_patch.c b/openbsc/src/gprs/gb_proxy_patch.c
index c1d2497..7bddc44 100644
--- a/openbsc/src/gprs/gb_proxy_patch.c
+++ b/openbsc/src/gprs/gb_proxy_patch.c
@@ -23,7 +23,6 @@
 #include <openbsc/gprs_utils.h>
 #include <openbsc/gprs_gb_parse.h>
 
-#include <openbsc/gsm_04_08_gprs.h>
 #include <openbsc/gsm_data.h>
 #include <openbsc/debug.h>
 
diff --git a/openbsc/src/gprs/gb_proxy_peer.c b/openbsc/src/gprs/gb_proxy_peer.c
index c2cdd0e..5365ff0 100644
--- a/openbsc/src/gprs/gb_proxy_peer.c
+++ b/openbsc/src/gprs/gb_proxy_peer.c
@@ -24,7 +24,6 @@
 
 #include <openbsc/gsm_data.h>
 #include <openbsc/gsm_data_shared.h>
-#include <openbsc/gsm_04_08_gprs.h>
 #include <openbsc/debug.h>
 
 #include <osmocom/gprs/protocol/gsm_08_18.h>
diff --git a/openbsc/src/gprs/gprs_gb_parse.c b/openbsc/src/gprs/gprs_gb_parse.c
index 63ac902..5ec3cf6 100644
--- a/openbsc/src/gprs/gprs_gb_parse.c
+++ b/openbsc/src/gprs/gprs_gb_parse.c
@@ -19,12 +19,12 @@
  */
 
 #include <osmocom/gsm/gsm48.h>
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 
 #include <openbsc/gprs_gb_parse.h>
 
 #include <openbsc/gprs_utils.h>
 
-#include <openbsc/gsm_04_08_gprs.h>
 #include <openbsc/debug.h>
 
 #include <osmocom/gprs/gprs_bssgp.h>
diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c
index 6b6e741..2bbc5ff 100644
--- a/openbsc/src/gprs/gprs_gmm.c
+++ b/openbsc/src/gprs/gprs_gmm.c
@@ -39,6 +39,7 @@
 #include <osmocom/core/talloc.h>
 #include <osmocom/core/rate_ctr.h>
 #include <osmocom/gsm/apn.h>
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 
 #include <osmocom/gprs/gprs_bssgp.h>
 
@@ -46,7 +47,6 @@
 #include <openbsc/gsm_data.h>
 #include <openbsc/gsm_subscriber.h>
 #include <openbsc/gsm_04_08.h>
-#include <openbsc/gsm_04_08_gprs.h>
 #include <openbsc/paging.h>
 #include <openbsc/transaction.h>
 #include <openbsc/gprs_llc.h>
diff --git a/openbsc/src/gprs/gprs_sgsn.c b/openbsc/src/gprs/gprs_sgsn.c
index b7bda49..65f789d 100644
--- a/openbsc/src/gprs/gprs_sgsn.c
+++ b/openbsc/src/gprs/gprs_sgsn.c
@@ -29,12 +29,12 @@
 #include <osmocom/core/backtrace.h>
 #include <osmocom/gprs/gprs_ns.h>
 #include <osmocom/gprs/gprs_bssgp.h>
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 
 #include <openbsc/gsm_subscriber.h>
 #include <openbsc/debug.h>
 #include <openbsc/gprs_sgsn.h>
 #include <openbsc/sgsn.h>
-#include <openbsc/gsm_04_08_gprs.h>
 #include <openbsc/gprs_gmm.h>
 #include <openbsc/gprs_utils.h>
 #include <openbsc/signal.h>
diff --git a/openbsc/src/gprs/gprs_subscriber.c b/openbsc/src/gprs/gprs_subscriber.c
index 678c1de..5b0bf39 100644
--- a/openbsc/src/gprs/gprs_subscriber.c
+++ b/openbsc/src/gprs/gprs_subscriber.c
@@ -20,6 +20,7 @@
  *
  */
 
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 #include <openbsc/gsm_subscriber.h>
 #include <openbsc/gprs_gsup_client.h>
 
diff --git a/openbsc/src/gprs/gprs_utils.c b/openbsc/src/gprs/gprs_utils.c
index 895a033..64bfd74 100644
--- a/openbsc/src/gprs/gprs_utils.c
+++ b/openbsc/src/gprs/gprs_utils.c
@@ -20,11 +20,11 @@
  *
  */
 #include <openbsc/gprs_utils.h>
-#include <openbsc/gsm_04_08_gprs.h>
 
 #include <osmocom/core/msgb.h>
 #include <osmocom/gprs/gprs_ns.h>
 
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 #include <osmocom/gsm/protocol/gsm_04_08.h>
 #include <osmocom/gsm/gsm48.h>
 
diff --git a/openbsc/src/gprs/gsm_04_08_gprs.c b/openbsc/src/gprs/gsm_04_08_gprs.c
deleted file mode 100644
index 3ae50e2..0000000
--- a/openbsc/src/gprs/gsm_04_08_gprs.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/* (C) 2009-2010 by Harald Welte <laforge@gnumonks.org>
- * (C) 2010      by On-Waves
- * (C) 2014-2015 by Sysmocom s.f.m.c. GmbH
- *
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-
-#include <openbsc/gsm_04_08_gprs.h>
-
-#include <osmocom/core/utils.h>
-
-/* Protocol related stuff, should go into libosmocore */
-
-/* 10.5.5.14 GPRS MM Cause / Table 10.5.147 */
-const struct value_string gsm48_gmm_cause_names_[] = {
-	{ GMM_CAUSE_IMSI_UNKNOWN,	"IMSI unknown in HLR" },
-	{ GMM_CAUSE_ILLEGAL_MS,		"Illegal MS" },
-	{ GMM_CAUSE_ILLEGAL_ME,		"Illegal ME" },
-	{ GMM_CAUSE_GPRS_NOTALLOWED,	"GPRS services not allowed" },
-	{ GMM_CAUSE_GPRS_OTHER_NOTALLOWED,
-			"GPRS services and non-GPRS services not allowed" },
-	{ GMM_CAUSE_MS_ID_NOT_DERIVED,
-			"MS identity cannot be derived by the network" },
-	{ GMM_CAUSE_IMPL_DETACHED,	"Implicitly detached" },
-	{ GMM_CAUSE_PLMN_NOTALLOWED,	"PLMN not allowed" },
-	{ GMM_CAUSE_LA_NOTALLOWED,	"Location Area not allowed" },
-	{ GMM_CAUSE_ROAMING_NOTALLOWED,
-			"Roaming not allowed in this location area" },
-	{ GMM_CAUSE_NO_GPRS_PLMN,
-				"GPRS services not allowed in this PLMN" },
-	{ GMM_CAUSE_MSC_TEMP_NOTREACH,	"MSC temporarily not reachable" },
-	{ GMM_CAUSE_NET_FAIL,		"Network failure" },
-	{ GMM_CAUSE_CONGESTION,		"Congestion" },
-	{ GMM_CAUSE_SEM_INCORR_MSG,	"Semantically incorrect message" },
-	{ GMM_CAUSE_INV_MAND_INFO, "Invalid mandatory information" },
-	{ GMM_CAUSE_MSGT_NOTEXIST_NOTIMPL,
-			"Message type non-existant or not implemented" },
-	{ GMM_CAUSE_MSGT_INCOMP_P_STATE,
-			"Message type not compatible with protocol state" },
-	{ GMM_CAUSE_IE_NOTEXIST_NOTIMPL,
-			"Information element non-existent or not implemented" },
-	{ GMM_CAUSE_COND_IE_ERR,	"Conditional IE error" },
-	{ GMM_CAUSE_MSG_INCOMP_P_STATE,
-				"Message not compatible with protocol state " },
-	{ GMM_CAUSE_PROTO_ERR_UNSPEC,	"Protocol error, unspecified" },
-	{ 0, NULL }
-};
-
-const struct value_string *gsm48_gmm_cause_names = gsm48_gmm_cause_names_;
-
-/* 10.5.6.6 SM Cause / Table 10.5.157 */
-const struct value_string gsm48_gsm_cause_names_[] = {
-	{ GSM_CAUSE_INSUFF_RSRC, "Insufficient resources" },
-	{ GSM_CAUSE_MISSING_APN, "Missing or unknown APN" },
-	{ GSM_CAUSE_UNKNOWN_PDP, "Unknown PDP address or PDP type" },
-	{ GSM_CAUSE_AUTH_FAILED, "User Authentication failed" },
-	{ GSM_CAUSE_ACT_REJ_GGSN, "Activation rejected by GGSN" },
-	{ GSM_CAUSE_ACT_REJ_UNSPEC, "Activation rejected, unspecified" },
-	{ GSM_CAUSE_SERV_OPT_NOTSUPP, "Service option not supported" },
-	{ GSM_CAUSE_REQ_SERV_OPT_NOTSUB,
-				"Requested service option not subscribed" },
-	{ GSM_CAUSE_SERV_OPT_TEMP_OOO,
-				"Service option temporarily out of order" },
-	{ GSM_CAUSE_NSAPI_IN_USE, "NSAPI already used" },
-	{ GSM_CAUSE_DEACT_REGULAR, "Regular deactivation" },
-	{ GSM_CAUSE_QOS_NOT_ACCEPTED, "QoS not accepted" },
-	{ GSM_CAUSE_NET_FAIL, "Network Failure" },
-	{ GSM_CAUSE_REACT_RQD, "Reactivation required" },
-	{ GSM_CAUSE_FEATURE_NOTSUPP, "Feature not supported " },
-	{ GSM_CAUSE_INVALID_TRANS_ID, "Invalid transaction identifier" },
-	{ GSM_CAUSE_SEM_INCORR_MSG, "Semantically incorrect message" },
-	{ GSM_CAUSE_INV_MAND_INFO, "Invalid mandatory information" },
-	{ GSM_CAUSE_MSGT_NOTEXIST_NOTIMPL,
-			"Message type non-existant or not implemented" },
-	{ GSM_CAUSE_MSGT_INCOMP_P_STATE,
-			"Message type not compatible with protocol state" },
-	{ GSM_CAUSE_IE_NOTEXIST_NOTIMPL,
-			"Information element non-existent or not implemented" },
-	{ GSM_CAUSE_COND_IE_ERR, "Conditional IE error" },
-	{ GSM_CAUSE_MSG_INCOMP_P_STATE,
-				"Message not compatible with protocol state " },
-	{ GSM_CAUSE_PROTO_ERR_UNSPEC, "Protocol error, unspecified" },
-	{ 0, NULL }
-};
-
-const struct value_string *gsm48_gsm_cause_names = gsm48_gsm_cause_names_;
-
-/* 10.5.5.2 */
-const struct value_string gprs_att_t_strs_[] = {
-	{ GPRS_ATT_T_ATTACH,		"GPRS attach" },
-	{ GPRS_ATT_T_ATT_WHILE_IMSI,	"GPRS attach while IMSI attached" },
-	{ GPRS_ATT_T_COMBINED,		"Combined GPRS/IMSI attach" },
-	{ 0, NULL }
-};
-
-const struct value_string *gprs_att_t_strs = gprs_att_t_strs_;
-
-const struct value_string gprs_upd_t_strs_[] = {
-	{ GPRS_UPD_T_RA,		"RA updating" },
-	{ GPRS_UPD_T_RA_LA,		"combined RA/LA updating" },
-	{ GPRS_UPD_T_RA_LA_IMSI_ATT,	"combined RA/LA updating + IMSI attach" },
-	{ GPRS_UPD_T_PERIODIC,		"periodic updating" },
-	{ 0, NULL }
-};
-
-const struct value_string *gprs_upd_t_strs = gprs_upd_t_strs_;
-
-/* 10.5.5.5 */
-const struct value_string gprs_det_t_mo_strs_[] = {
-	{ GPRS_DET_T_MO_GPRS,		"GPRS detach" },
-	{ GPRS_DET_T_MO_IMSI,		"IMSI detach" },
-	{ GPRS_DET_T_MO_COMBINED,	"Combined GPRS/IMSI detach" },
-	{ 0, NULL }
-};
-
-const struct value_string *gprs_det_t_mo_strs = gprs_det_t_mo_strs_;
-
-const struct value_string gprs_det_t_mt_strs_[] = {
-	{ GPRS_DET_T_MT_REATT_REQ,	"re-attach required" },
-	{ GPRS_DET_T_MT_REATT_NOTREQ,	"re-attach not required" },
-	{ GPRS_DET_T_MT_IMSI,		"IMSI detach (after VLR failure)" },
-	{ 0, NULL }
-};
-
-const struct value_string *gprs_det_t_mt_strs = gprs_det_t_mt_strs_;
-
diff --git a/openbsc/src/gprs/sgsn_auth.c b/openbsc/src/gprs/sgsn_auth.c
index b83294d..f0c4316 100644
--- a/openbsc/src/gprs/sgsn_auth.c
+++ b/openbsc/src/gprs/sgsn_auth.c
@@ -19,11 +19,11 @@
  *
  */
 
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 #include <openbsc/sgsn.h>
 #include <openbsc/gprs_sgsn.h>
 #include <openbsc/gprs_gmm.h>
 #include <openbsc/gsm_subscriber.h>
-#include <openbsc/gsm_04_08_gprs.h>
 #include <openbsc/debug.h>
 
 const struct value_string auth_state_names[] = {
diff --git a/openbsc/src/gprs/sgsn_libgtp.c b/openbsc/src/gprs/sgsn_libgtp.c
index aff2f91..aaf7e7a 100644
--- a/openbsc/src/gprs/sgsn_libgtp.c
+++ b/openbsc/src/gprs/sgsn_libgtp.c
@@ -38,8 +38,8 @@
 #include <osmocom/core/select.h>
 #include <osmocom/core/rate_ctr.h>
 #include <osmocom/gprs/gprs_bssgp.h>
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 
-#include <openbsc/gsm_04_08_gprs.h>
 #include <openbsc/signal.h>
 #include <openbsc/debug.h>
 #include <openbsc/sgsn.h>
diff --git a/openbsc/src/gprs/sgsn_vty.c b/openbsc/src/gprs/sgsn_vty.c
index 50f0e8f..f16c95a 100644
--- a/openbsc/src/gprs/sgsn_vty.c
+++ b/openbsc/src/gprs/sgsn_vty.c
@@ -27,13 +27,13 @@
 #include <osmocom/core/talloc.h>
 #include <osmocom/core/utils.h>
 #include <osmocom/core/rate_ctr.h>
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 
 #include <openbsc/debug.h>
 #include <openbsc/sgsn.h>
 #include <osmocom/gprs/gprs_ns.h>
 #include <openbsc/gprs_sgsn.h>
 #include <openbsc/vty.h>
-#include <openbsc/gsm_04_08_gprs.h>
 #include <openbsc/gprs_gsup_client.h>
 
 #include <osmocom/vty/command.h>
diff --git a/openbsc/tests/gbproxy/gbproxy_test.c b/openbsc/tests/gbproxy/gbproxy_test.c
index 96a68b0..a2ff95b 100644
--- a/openbsc/tests/gbproxy/gbproxy_test.c
+++ b/openbsc/tests/gbproxy/gbproxy_test.c
@@ -26,6 +26,7 @@
 #include <osmocom/core/rate_ctr.h>
 #include <osmocom/gsm/tlv.h>
 #include <osmocom/gsm/gsm_utils.h>
+#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
 #include <osmocom/gprs/gprs_msgb.h>
 #include <osmocom/gprs/gprs_ns.h>
 #include <osmocom/gprs/gprs_bssgp.h>
@@ -34,7 +35,6 @@
 #include <openbsc/gprs_utils.h>
 #include <openbsc/gprs_llc.h>
 #include <openbsc/gprs_gb_parse.h>
-#include <openbsc/gsm_04_08_gprs.h>
 #include <openbsc/debug.h>
 
 #include <openssl/rand.h>
diff --git a/openbsc/tests/oap/Makefile.am b/openbsc/tests/oap/Makefile.am
index 3a76b11..538e178 100644
--- a/openbsc/tests/oap/Makefile.am
+++ b/openbsc/tests/oap/Makefile.am
@@ -15,7 +15,6 @@
 	$(top_builddir)/src/gprs/oap.o \
 	$(top_builddir)/src/gprs/oap_messages.o \
 	$(top_builddir)/src/gprs/gprs_utils.o \
-	$(top_builddir)/src/gprs/gsm_04_08_gprs.o \
 	$(top_builddir)/src/libcommon/libcommon.a \
 	$(LIBOSMOCORE_LIBS) \
 	$(LIBOSMOGSM_LIBS) \
diff --git a/openbsc/tests/sgsn/Makefile.am b/openbsc/tests/sgsn/Makefile.am
index d432fb1..aebcf01 100644
--- a/openbsc/tests/sgsn/Makefile.am
+++ b/openbsc/tests/sgsn/Makefile.am
@@ -27,7 +27,6 @@
 	$(top_builddir)/src/gprs/gprs_gsup_client.o \
 	$(top_builddir)/src/gprs/gprs_utils.o \
 	$(top_builddir)/src/gprs/gprs_subscriber.o \
-	$(top_builddir)/src/gprs/gsm_04_08_gprs.o \
 	$(top_builddir)/src/gprs/gprs_gb_parse.o \
 	$(top_builddir)/src/gprs/oap.o \
 	$(top_builddir)/src/gprs/oap_messages.o \
diff --git a/openbsc/tests/sgsn/sgsn_test.c b/openbsc/tests/sgsn/sgsn_test.c
index fe41e75..94c277f 100644
--- a/openbsc/tests/sgsn/sgsn_test.c
+++ b/openbsc/tests/sgsn/sgsn_test.c
@@ -32,7 +32,6 @@
 #include <osmocom/gprs/gprs_bssgp.h>
 
 #include <osmocom/gsm/gsm_utils.h>
-#include <openbsc/gsm_04_08_gprs.h>
 
 #include <osmocom/core/application.h>
 #include <osmocom/core/msgb.h>