diff options
| -rw-r--r-- | include/osmocom/gsm/gsm0808.h | 3 | ||||
| -rw-r--r-- | src/gsm/gsm0808.c | 52 | ||||
| -rw-r--r-- | src/gsm/libosmogsm.map | 1 | ||||
| -rw-r--r-- | tests/gsm0808/gsm0808_test.c | 42 | ||||
| -rw-r--r-- | tests/gsm0808/gsm0808_test.ok | 1 |
5 files changed, 99 insertions, 0 deletions
diff --git a/include/osmocom/gsm/gsm0808.h b/include/osmocom/gsm/gsm0808.h index 9738a554..990fd74d 100644 --- a/include/osmocom/gsm/gsm0808.h +++ b/include/osmocom/gsm/gsm0808.h @@ -57,6 +57,9 @@ struct msgb *gsm0808_create_ass_fail(uint8_t cause, const uint8_t *rr_cause, *scl); struct msgb *gsm0808_create_assignment_failure(uint8_t cause, uint8_t *rr_cause); struct msgb *gsm0808_create_clear_rqst(uint8_t cause); +struct msgb *gsm0808_create_paging(const char *imsi, const uint32_t *tmsi, + const struct gsm0808_cell_id_list *cil, + const uint8_t *chan_needed); struct msgb *gsm0808_create_dtap(struct msgb *msg, uint8_t link_id); void gsm0808_prepend_dtap_header(struct msgb *msg, uint8_t link_id); diff --git a/src/gsm/gsm0808.c b/src/gsm/gsm0808.c index c952a9f8..2721a1b1 100644 --- a/src/gsm/gsm0808.c +++ b/src/gsm/gsm0808.c @@ -347,6 +347,58 @@ struct msgb *gsm0808_create_clear_rqst(uint8_t cause) return msg; } +struct msgb *gsm0808_create_paging(const char *imsi, const uint32_t *tmsi, + const struct gsm0808_cell_id_list *cil, + const uint8_t *chan_needed) +{ + struct msgb *msg; + uint8_t mid_buf[GSM48_MI_SIZE + 2]; + int mid_len; + uint32_t tmsi_sw; + + /* Mandatory emelents! */ + OSMO_ASSERT(imsi); + OSMO_ASSERT(cil); + + /* Malformed IMSI */ + OSMO_ASSERT(strlen(imsi) <= GSM48_MI_SIZE); + + msg = + msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, "paging"); + if (!msg) + return NULL; + + /* Message Type 3.2.2.1 */ + msgb_v_put(msg, BSS_MAP_MSG_PAGING); + + /* IMSI 3.2.2.6 */ + mid_len = gsm48_generate_mid_from_imsi(mid_buf, imsi); + msgb_tlv_put(msg, GSM0808_IE_IMSI, mid_len - 2, mid_buf + 2); + + /* TMSI 3.2.2.7 */ + if (tmsi) { + tmsi_sw = htonl(*tmsi); + msgb_tlv_put(msg, GSM0808_IE_TMSI, sizeof(*tmsi), + (uint8_t *) & tmsi_sw); + } + + /* Cell Identifier List 3.2.2.27 */ + if (cil) + gsm0808_enc_cell_id_list(msg, cil); + + /* Channel Needed 3.2.2.36 */ + if (chan_needed) { + msgb_tv_put(msg, GSM0808_IE_CHANNEL_NEEDED, + (*chan_needed) & 0x03); + } + + /* pre-pend the header */ + msg->l3h = + msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); + + return msg; +} + void gsm0808_prepend_dtap_header(struct msgb *msg, uint8_t link_id) { uint8_t *hh = msgb_push(msg, 3); diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map index 786bf08b..ec234189 100644 --- a/src/gsm/libosmogsm.map +++ b/src/gsm/libosmogsm.map @@ -135,6 +135,7 @@ gsm0808_create_classmark_update; gsm0808_create_clear_command; gsm0808_create_clear_complete; gsm0808_create_clear_rqst; +gsm0808_create_paging; gsm0808_create_dtap; gsm0808_create_layer3; gsm0808_create_layer3_aoip; diff --git a/tests/gsm0808/gsm0808_test.c b/tests/gsm0808/gsm0808_test.c index f33e0bd1..b0dad7d8 100644 --- a/tests/gsm0808/gsm0808_test.c +++ b/tests/gsm0808/gsm0808_test.c @@ -21,6 +21,7 @@ #include <osmocom/gsm/gsm0808.h> #include <osmocom/gsm/gsm0808_utils.h> #include <osmocom/gsm/protocol/gsm_08_08.h> +#include <osmocom/gsm/protocol/gsm_08_58.h> #include <stdio.h> #include <stdlib.h> @@ -370,6 +371,46 @@ static void test_create_clear_rqst() msgb_free(msg); } +static void test_create_paging() +{ + static const uint8_t res[] = + { 0x00, 0x10, 0x52, 0x08, 0x08, 0x09, 0x10, 0x10, 0x00, 0x00, 0x00, + 0x21, 0x43, 0x1a, 0x03, 0x05, 0x23, 0x42 }; + static const uint8_t res2[] = + { 0x00, 0x16, 0x52, 0x08, 0x08, 0x09, 0x10, 0x10, 0x00, 0x00, 0x00, + 0x21, 0x43, GSM0808_IE_TMSI, 0x04, 0x12, 0x34, 0x56, 0x78, 0x1a, + 0x03, 0x05, 0x23, 0x42 }; + static const uint8_t res3[] = + { 0x00, 0x18, 0x52, 0x08, 0x08, 0x09, 0x10, 0x10, 0x00, 0x00, 0x00, + 0x21, 0x43, GSM0808_IE_TMSI, 0x04, 0x12, 0x34, 0x56, 0x78, 0x1a, + 0x03, 0x05, 0x23, 0x42, GSM0808_IE_CHANNEL_NEEDED, + RSL_CHANNEED_TCH_ForH }; + + struct msgb *msg; + struct gsm0808_cell_id_list cil; + uint32_t tmsi = 0x12345678; + uint8_t chan_needed = RSL_CHANNEED_TCH_ForH; + + char imsi[] = "001010000001234"; + + cil.id_discr = CELL_IDENT_LAC; + cil.id_list_lac[0] = 0x2342; + cil.id_list_len = 1; + + printf("Testing creating Paging Request\n"); + msg = gsm0808_create_paging(imsi, NULL, &cil, NULL); + VERIFY(msg, res, ARRAY_SIZE(res)); + msgb_free(msg); + + msg = gsm0808_create_paging(imsi, &tmsi, &cil, NULL); + VERIFY(msg, res2, ARRAY_SIZE(res2)); + msgb_free(msg); + + msg = gsm0808_create_paging(imsi, &tmsi, &cil, &chan_needed); + VERIFY(msg, res3, ARRAY_SIZE(res3)); + msgb_free(msg); +} + static void test_create_dtap() { static const uint8_t res[] = { 0x01, 0x03, 0x02, 0x23, 0x42 }; @@ -750,6 +791,7 @@ int main(int argc, char **argv) test_create_ass_fail(); test_create_ass_fail_aoip(); test_create_clear_rqst(); + test_create_paging(); test_create_dtap(); test_prepend_dtap(); test_enc_dec_aoip_trasp_addr_v4(); diff --git a/tests/gsm0808/gsm0808_test.ok b/tests/gsm0808/gsm0808_test.ok index 8e2087d8..6170a7ab 100644 --- a/tests/gsm0808/gsm0808_test.ok +++ b/tests/gsm0808/gsm0808_test.ok @@ -14,6 +14,7 @@ Testing creating Assignment Complete (AoIP) Testing creating Assignment Failure Testing creating Assignment Failure (AoIP) Testing creating Clear Request +Testing creating Paging Request Testing creating DTAP Testing prepend DTAP Done |