Neels Hofmeyr has uploaded this change for review. ( 
https://gerrit.osmocom.org/12035


Change subject: move gsm_auth_tuple to vlr.h as vlr_auth_tuple
......................................................................

move gsm_auth_tuple to vlr.h as vlr_auth_tuple

Along goes GSM_KEYSEQ_INVAL as VLR_*.

It's where it logically belongs, and is almost the only reason why vlr.h
includes gsm_data.h. The remaining reason, GSM_EXTENSION_LENGTH, will be moved
by upcoming patch.

Change-Id: I122feae7ee3cbc59e941daef35a954bce29fec76
---
M include/osmocom/msc/gsm_data.h
M include/osmocom/msc/vlr.h
M src/libmsc/gsm_04_08.c
M src/libmsc/msc_vty.c
M src/libvlr/vlr.c
M src/libvlr/vlr_auth_fsm.c
M tests/msc_vlr/msc_vlr_tests.c
7 files changed, 27 insertions(+), 26 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/35/12035/1

diff --git a/include/osmocom/msc/gsm_data.h b/include/osmocom/msc/gsm_data.h
index 3ffa100..30a3c79 100644
--- a/include/osmocom/msc/gsm_data.h
+++ b/include/osmocom/msc/gsm_data.h
@@ -42,13 +42,6 @@
                     struct msgb *msg,
                     void *data, void *param);

-struct gsm_auth_tuple {
-       int use_count;
-       int key_seq;
-       struct osmo_auth_vector vec;
-};
-#define GSM_KEY_SEQ_INVAL      7       /* GSM 04.08 - 10.5.1.2 */
-
 enum {
        MSC_CTR_LOC_UPDATE_TYPE_ATTACH,
        MSC_CTR_LOC_UPDATE_TYPE_NORMAL,
diff --git a/include/osmocom/msc/vlr.h b/include/osmocom/msc/vlr.h
index 1168c32..1865618 100644
--- a/include/osmocom/msc/vlr.h
+++ b/include/osmocom/msc/vlr.h
@@ -77,6 +77,14 @@
        VLR_CIPH_COMPL,
 };

+struct vlr_auth_tuple {
+       int use_count;
+       int key_seq;
+       struct osmo_auth_vector vec;
+};
+#define VLR_KEY_SEQ_INVAL      7       /* GSM 04.08 - 10.5.1.2 */
+
+
 struct vlr_ciph_result {
        enum vlr_ciph_result_cause cause;
        char imeisv[GSM48_MI_SIZE];
@@ -122,8 +130,8 @@
        uint32_t age_indicator;                         /* 2.17.1 */

        /* Authentication Data */
-       struct gsm_auth_tuple auth_tuples[5];           /* 2.3.1-2.3.4 */
-       struct gsm_auth_tuple *last_tuple;
+       struct vlr_auth_tuple auth_tuples[5];           /* 2.3.1-2.3.4 */
+       struct vlr_auth_tuple *last_tuple;
        enum vlr_subscr_security_context sec_ctx;

        /* Data local to VLR is below */
@@ -205,7 +213,7 @@
         * \param[in] at  auth tuple providing rand, key_seq and autn.
         * \param[in] send_autn  True to send AUTN, for r99 UMTS auth.
         */
-       int (*tx_auth_req)(void *msc_conn_ref, struct gsm_auth_tuple *at,
+       int (*tx_auth_req)(void *msc_conn_ref, struct vlr_auth_tuple *at,
                           bool send_autn);
        /* encode + transmit an AUTH REJECT towards the MS */
        int (*tx_auth_rej)(void *msc_conn_ref);
diff --git a/src/libmsc/gsm_04_08.c b/src/libmsc/gsm_04_08.c
index 83f8d99..e159419 100644
--- a/src/libmsc/gsm_04_08.c
+++ b/src/libmsc/gsm_04_08.c
@@ -1513,7 +1513,7 @@
  ***********************************************************************/

 /* VLR asks us to send an authentication request */
-static int msc_vlr_tx_auth_req(void *msc_conn_ref, struct gsm_auth_tuple *at,
+static int msc_vlr_tx_auth_req(void *msc_conn_ref, struct vlr_auth_tuple *at,
                               bool send_autn)
 {
        struct ran_conn *conn = msc_conn_ref;
@@ -1599,7 +1599,7 @@
        int i, j = 0;
        int request_classmark = 0;
        int request_classmark_for_a5_n = 0;
-       struct gsm_auth_tuple *tuple = conn->vsub->last_tuple;
+       struct vlr_auth_tuple *tuple = conn->vsub->last_tuple;

        if (!conn || !conn->vsub || !conn->vsub->last_tuple) {
                /* This should really never happen, because we checked this in 
msc_vlr_set_ciph_mode()
@@ -1672,7 +1672,7 @@
 {
        struct ran_conn *conn = msc_conn_ref;
        struct vlr_subscr *vsub;
-       struct gsm_auth_tuple *tuple;
+       struct vlr_auth_tuple *tuple;

        if (!conn || !conn->vsub) {
                LOGP(DMM, LOGL_ERROR, "Cannot send Ciphering Mode Command to"
diff --git a/src/libmsc/msc_vty.c b/src/libmsc/msc_vty.c
index 03dbbc9..87e59f6 100644
--- a/src/libmsc/msc_vty.c
+++ b/src/libmsc/msc_vty.c
@@ -601,7 +601,7 @@
 #endif

        if (vsub->last_tuple) {
-               struct gsm_auth_tuple *t = vsub->last_tuple;
+               struct vlr_auth_tuple *t = vsub->last_tuple;
                vty_out(vty, "    A3A8 last tuple (used %d times):%s",
                        t->use_count, VTY_NEWLINE);
                vty_out(vty, "     seq # : %d%s",
diff --git a/src/libvlr/vlr.c b/src/libvlr/vlr.c
index c777d8a..b424563 100644
--- a/src/libvlr/vlr.c
+++ b/src/libvlr/vlr.c
@@ -241,7 +241,7 @@
        vsub->tmsi_new = GSM_RESERVED_TMSI;

        for (i = 0; i < ARRAY_SIZE(vsub->auth_tuples); i++)
-               vsub->auth_tuples[i].key_seq = GSM_KEY_SEQ_INVAL;
+               vsub->auth_tuples[i].key_seq = VLR_KEY_SEQ_INVAL;

        INIT_LLIST_HEAD(&vsub->cs.requests);
        INIT_LLIST_HEAD(&vsub->ps.pdp_list);
@@ -660,7 +660,7 @@
        if (gsup->num_auth_vectors) {
                memset(&vsub->auth_tuples, 0, sizeof(vsub->auth_tuples));
                for (i = 0; i < ARRAY_SIZE(vsub->auth_tuples); i++)
-                       vsub->auth_tuples[i].key_seq = GSM_KEY_SEQ_INVAL;
+                       vsub->auth_tuples[i].key_seq = VLR_KEY_SEQ_INVAL;
        }

        got_tuples = 0;
diff --git a/src/libvlr/vlr_auth_fsm.c b/src/libvlr/vlr_auth_fsm.c
index 6384d39..ca072b1 100644
--- a/src/libvlr/vlr_auth_fsm.c
+++ b/src/libvlr/vlr_auth_fsm.c
@@ -64,13 +64,13 @@
  * least used auth tuple without enforcing a maximum use count.  If there are
  * no auth tuples, return NULL.
  */
-static struct gsm_auth_tuple *
+static struct vlr_auth_tuple *
 _vlr_subscr_next_auth_tuple(struct vlr_subscr *vsub, int max_reuse_count)
 {
        unsigned int count;
        unsigned int idx;
-       struct gsm_auth_tuple *at = NULL;
-       unsigned int key_seq = GSM_KEY_SEQ_INVAL;
+       struct vlr_auth_tuple *at = NULL;
+       unsigned int key_seq = VLR_KEY_SEQ_INVAL;

        if (!vsub)
                return NULL;
@@ -78,7 +78,7 @@
        if (vsub->last_tuple)
                key_seq = vsub->last_tuple->key_seq;

-       if (key_seq == GSM_KEY_SEQ_INVAL)
+       if (key_seq == VLR_KEY_SEQ_INVAL)
                /* Start with 0 after increment modulo array size */
                idx = ARRAY_SIZE(vsub->auth_tuples) - 1;
        else
@@ -87,7 +87,7 @@
        for (count = ARRAY_SIZE(vsub->auth_tuples); count > 0; count--) {
                idx = (idx + 1) % ARRAY_SIZE(vsub->auth_tuples);

-               if (vsub->auth_tuples[idx].key_seq == GSM_KEY_SEQ_INVAL)
+               if (vsub->auth_tuples[idx].key_seq == VLR_KEY_SEQ_INVAL)
                        continue;

                if (!at || vsub->auth_tuples[idx].use_count < at->use_count)
@@ -101,10 +101,10 @@
 }

 /* Return an auth tuple and increment its use count. */
-static struct gsm_auth_tuple *
+static struct vlr_auth_tuple *
 vlr_subscr_get_auth_tuple(struct vlr_subscr *vsub, int max_reuse_count)
 {
-       struct gsm_auth_tuple *at = _vlr_subscr_next_auth_tuple(vsub,
+       struct vlr_auth_tuple *at = _vlr_subscr_next_auth_tuple(vsub,
                                                               max_reuse_count);
        if (!at)
                return NULL;
@@ -123,7 +123,7 @@
                            bool is_utran, const uint8_t *res,
                            uint8_t res_len)
 {
-       struct gsm_auth_tuple *at = vsub->last_tuple;
+       struct vlr_auth_tuple *at = vsub->last_tuple;
        struct osmo_auth_vector *vec = &at->vec;
        bool check_umts;
        bool res_is_umts_aka;
@@ -262,7 +262,7 @@
 {
        struct auth_fsm_priv *afp = fi->priv;
        struct vlr_subscr *vsub = afp->vsub;
-       struct gsm_auth_tuple *at;
+       struct vlr_auth_tuple *at;
        bool use_umts_aka;

        /* Caller ensures we have vectors available */
diff --git a/tests/msc_vlr/msc_vlr_tests.c b/tests/msc_vlr/msc_vlr_tests.c
index 861e56f..0ca95c4 100644
--- a/tests/msc_vlr/msc_vlr_tests.c
+++ b/tests/msc_vlr/msc_vlr_tests.c
@@ -713,7 +713,7 @@
        return 0;
 }

-static int fake_vlr_tx_auth_req(void *msc_conn_ref, struct gsm_auth_tuple *at,
+static int fake_vlr_tx_auth_req(void *msc_conn_ref, struct vlr_auth_tuple *at,
                                bool send_autn)
 {
        struct ran_conn *conn = msc_conn_ref;

--
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Gerrit-Project: osmo-msc
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I122feae7ee3cbc59e941daef35a954bce29fec76
Gerrit-Change-Number: 12035
Gerrit-PatchSet: 1
Gerrit-Owner: Neels Hofmeyr <[email protected]>

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