Review at  https://gerrit.osmocom.org/2612

SI2quater: fix EARFCN inclusion check

Previously only the existance of bts->si_common.si2quater_neigh_list was
checked but not the actual number of EARFCNs in it. Fix it by using
si2q_earfcn_count() and adjust tests accordingly. While at it - reformat
tests to include extra information.

The correctness was checked manually by inspecting GSMTAP output.

Change-Id: Ic4fb2a9e870db66cac58b1e8d113587b30d64ce2
Related: RT#8792
---
M openbsc/src/libbsc/rest_octets.c
M openbsc/src/libbsc/system_information.c
M openbsc/tests/gsm0408/gsm0408_test.c
M openbsc/tests/gsm0408/gsm0408_test.ok
4 files changed, 93 insertions(+), 38 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/openbsc refs/changes/12/2612/1

diff --git a/openbsc/src/libbsc/rest_octets.c b/openbsc/src/libbsc/rest_octets.c
index 950e570..a6fdf46 100644
--- a/openbsc/src/libbsc/rest_octets.c
+++ b/openbsc/src/libbsc/rest_octets.c
@@ -379,14 +379,13 @@
        /* No GPRS_3G_MEASUREMENT Parameters Descr. */
        bitvec_set_bit(&bv, 0);
 
-       if (&bts->si_common.si2quater_neigh_list) { /* FIXME: use 
si2q_earfcn_count() in if */
+       if (si2q_earfcn_count(&bts->si_common.si2quater_neigh_list)) {
                append_earfcn(&bv, bts, SI2Q_MAX_LEN - bv.cur_bit);
 
                /* FIXME: remove following check once multiple SI2q are 
properly supported */
                if ((bts->e_offset != 
si2q_earfcn_count(&bts->si_common.si2quater_neigh_list)) ||
                    si2q_earfcn_count(&bts->si_common.si2quater_neigh_list) > 5)
                        return -ENOMEM;
-
        } else {
                /* No Additions in Rel-5: */
                bitvec_set_bit(&bv, L);
diff --git a/openbsc/src/libbsc/system_information.c 
b/openbsc/src/libbsc/system_information.c
index 0496506..1f678e8 100644
--- a/openbsc/src/libbsc/system_information.c
+++ b/openbsc/src/libbsc/system_information.c
@@ -692,9 +692,10 @@
 size_t si2q_earfcn_count(const struct osmo_earfcn_si2q *e)
 {
        unsigned i, ret = 0;
-       for (i = 0; i < e->length; i++)
-               if (e->arfcn[i] != OSMO_EARFCN_INVALID)
-                       ret++;
+       if (e)
+               for (i = 0; i < e->length; i++)
+                       if (e->arfcn[i] != OSMO_EARFCN_INVALID)
+                               ret++;
 
        return ret;
 }
@@ -777,7 +778,8 @@
                si_info.si2ter_indicator = 0;
        }
        if ((bts->si_valid & (1 << SYSINFO_TYPE_2quater))) {
-               LOGP(DRR, LOGL_INFO, "SI 2quater is included.\n");
+               LOGP(DRR, LOGL_INFO, "SI 2quater is included, based on %zu 
EARFCNs and %zu UARFCNs.\n",
+                    si2q_earfcn_count(&bts->si_common.si2quater_neigh_list), 
bts->si_common.uarfcn_length);
                si_info.si2quater_indicator = 1;
        } else {
                si_info.si2quater_indicator = 0;
diff --git a/openbsc/tests/gsm0408/gsm0408_test.c 
b/openbsc/tests/gsm0408/gsm0408_test.c
index 265e4b2..36f6993 100644
--- a/openbsc/tests/gsm0408/gsm0408_test.c
+++ b/openbsc/tests/gsm0408/gsm0408_test.c
@@ -28,6 +28,7 @@
 #include <openbsc/gsm_04_08.h>
 #include <openbsc/gsm_04_11.h>
 #include <openbsc/gsm_subscriber.h>
+#include <openbsc/gsm_data_shared.h>
 #include <openbsc/debug.h>
 #include <openbsc/arfcn_range_encode.h>
 #include <openbsc/system_information.h>
@@ -86,21 +87,41 @@
 
 static inline void gen(struct gsm_bts *bts, const char *s)
 {
+       int r;
+
        bts->u_offset = 0;
        bts->e_offset = 0;
        bts->si2q_index = 0;
        bts->si2q_count = 0;
        bts->si_valid = 0;
        bts->si_valid |= (1 << SYSINFO_TYPE_2quater);
+
        /* should be no-op as entire buffer is filled with padding: */
        memset(GSM_BTS_SI(bts, SYSINFO_TYPE_2quater), 0xAE, GSM_MACBLOCK_LEN);
-       int r = gsm_generate_si(bts, SYSINFO_TYPE_2quater);
-       bool v = bts->si_valid & (1 << SYSINFO_TYPE_2quater);
+
+       printf("generating SI2quater for %zu EARFCNs and %zu UARFCNs...\n",
+              si2q_earfcn_count(&bts->si_common.si2quater_neigh_list), 
bts->si_common.uarfcn_length);
+
+       r = gsm_generate_si(bts, SYSINFO_TYPE_2quater);
        if (r > 0)
-               printf("generated %s SI2quater: [%d] %s\n",
-                      v ? "valid" : "invalid", r, osmo_hexdump(GSM_BTS_SI(bts, 
SYSINFO_TYPE_2quater), r));
+               printf("generated %s SI2quater [%02u/%02u]: [%d] %s\n",
+                      (bts->si_valid & (1 << SYSINFO_TYPE_2quater)) ? "valid" 
: "invalid",
+                      bts->si2q_index, bts->si2q_count, r,
+                      osmo_hexdump((void *)GSM_BTS_SI2Q(bts), 
GSM_MACBLOCK_LEN));
        else
                printf("%s() failed to generate SI2quater: %s\n", s, 
strerror(-r));
+}
+
+static inline void del_earfcn_b(struct gsm_bts *bts, uint16_t earfcn)
+{
+       struct osmo_earfcn_si2q *e = &bts->si_common.si2quater_neigh_list;
+       int r = osmo_earfcn_del(e, earfcn);
+       if (r)
+               printf("failed to remove EARFCN %u: %s\n", earfcn, 
strerror(-r));
+       else
+               printf("removed EARFCN %u - ", earfcn);
+
+       gen(bts, __func__);
 }
 
 static inline void add_earfcn_b(struct gsm_bts *bts, uint16_t earfcn, uint8_t 
bw)
@@ -208,7 +229,9 @@
        osmo_earfcn_init(&bts->si_common.si2quater_neigh_list);
        /* first generate invalid SI as no EARFCN added */
        gen(bts, __func__);
-       /* subsequent calls should produce valid SI if there's enough memory */
+       /* subsequent calls should produce valid SI if there's enough memory 
and EARFCNs */
+       add_earfcn_b(bts, 1917, 5);
+       del_earfcn_b(bts, 1917);
        add_earfcn_b(bts, 1917, 1);
        add_earfcn_b(bts, 1932, OSMO_EARFCN_MEAS_INVALID);
        add_earfcn_b(bts, 1937, 2);
diff --git a/openbsc/tests/gsm0408/gsm0408_test.ok 
b/openbsc/tests/gsm0408/gsm0408_test.ok
index 5f9398b..5e0b9d5 100644
--- a/openbsc/tests/gsm0408/gsm0408_test.ok
+++ b/openbsc/tests/gsm0408/gsm0408_test.ok
@@ -63,39 +63,70 @@
 Allocated reference: 0
 Allocated reference: 1
 Test SI2quater UARFCN (same scrambling code and diversity):
-generated valid SI2quater: [23] 59 06 07 c0 00 25 52 88 0a 7e 10 99 64 00 0b 
2b 2b 2b 2b 2b 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 52 e8 0a 7f 52 88 0a 7e 10 
99 64 00 0b 2b 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 52 e8 0a 7f 52 88 0a 7e 10 
99 64 00 0b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 1 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 52 88 0a 7e 0b 2b 2b 
2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 2 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 52 e8 0a 7f 52 88 0a 
7e 0b 2b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 2 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 52 e8 0a 7f 52 88 0a 
7e 0b 2b 2b 2b 2b 2b 2b 2b 2b 
 Testing SYSINFO_TYPE_2quater EARFCN generation:
-generated invalid SI2quater: [23] ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae 
ae ae ae ae ae ae ae ae 
-added EARFCN 1917 - generated valid SI2quater: [23] 59 06 07 c0 00 04 86 59 83 
be c8 50 0b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
-added EARFCN 1932 - generated valid SI2quater: [23] 59 06 07 c0 00 04 86 59 83 
be cc 1e 30 14 03 2b 2b 2b 2b 2b 2b 2b 2b 
-added EARFCN 1937 - generated valid SI2quater: [23] 59 06 07 c0 00 04 86 59 83 
be cc 1e 31 07 91 a0 a0 2b 2b 2b 2b 2b 2b 
-added EARFCN 1945 - generated valid SI2quater: [23] 59 06 07 c0 00 04 86 59 83 
be cc 1e 31 07 91 a8 3c c8 28 0b 2b 2b 2b 
-added EARFCN 1965 - generated valid SI2quater: [23] 59 06 07 c0 00 04 86 59 83 
be cc 1e 31 07 91 a8 3c ca 0f 5a 0a 03 2b 
-added EARFCN 1967 - add_earfcn_b() failed to generate SI2quater: Cannot 
allocate memory
-added EARFCN 1982 - add_earfcn_b() failed to generate SI2quater: Cannot 
allocate memory
+generating SI2quater for 0 EARFCNs and 0 UARFCNs...
+generated invalid SI2quater [00/00]: [23] ae ae ae ae ae ae ae ae ae ae ae ae 
ae ae ae ae ae ae ae ae ae ae ae 
+added EARFCN 1917 - generating SI2quater for 1 EARFCNs and 0 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 04 86 59 83 be e8 50 0b 
2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
+removed EARFCN 1917 - generating SI2quater for 0 EARFCNs and 0 UARFCNs...
+generated invalid SI2quater [00/00]: [23] ae ae ae ae ae ae ae ae ae ae ae ae 
ae ae ae ae ae ae ae ae ae ae ae 
+added EARFCN 1917 - generating SI2quater for 1 EARFCNs and 0 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 04 86 59 83 be c8 50 0b 
2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
+added EARFCN 1932 - generating SI2quater for 2 EARFCNs and 0 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 04 86 59 83 be cc 1e 30 
14 03 2b 2b 2b 2b 2b 2b 2b 2b 
+added EARFCN 1937 - generating SI2quater for 3 EARFCNs and 0 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 04 86 59 83 be cc 1e 31 
07 91 a0 a0 2b 2b 2b 2b 2b 2b 
+added EARFCN 1945 - generating SI2quater for 4 EARFCNs and 0 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 04 86 59 83 be cc 1e 31 
07 91 a8 3c c8 28 0b 2b 2b 2b 
+added EARFCN 1965 - generating SI2quater for 5 EARFCNs and 0 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 04 86 59 83 be cc 1e 31 
07 91 a8 3c ca 0f 5a 0a 03 2b 
+added EARFCN 1967 - generating SI2quater for 6 EARFCNs and 0 UARFCNs...
+add_earfcn_b() failed to generate SI2quater: Cannot allocate memory
+added EARFCN 1982 - generating SI2quater for 7 EARFCNs and 0 UARFCNs...
+add_earfcn_b() failed to generate SI2quater: Cannot allocate memory
 Testing SYSINFO_TYPE_2quater UARFCN generation:
-generated invalid SI2quater: [23] ae ae ae ae ae ae ae ae ae ae ae ae ae ae ae 
ae ae ae ae ae ae ae ae 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 0c 1a 10 99 64 00 0b 
2b 2b 2b 2b 2b 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 14 1a 1f 00 44 b2 00 
03 2b 2b 2b 2b 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 18 58 12 f0 84 86 59 
00 03 2b 2b 2b 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 20 58 2e f0 f2 04 86 
59 00 03 2b 2b 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 28 58 2e 22 f2 4e 84 
86 59 00 03 2b 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 34 1a 64 26 5d f2 05 
04 86 59 00 03 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 38 58 12 22 fd ce 8e 
05 04 86 59 00 03 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 40 58 1d 22 fa ce 88 
85 7b 00 44 b2 00 03 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 4c 7a 34 0e 64 77 85 
43 55 c8 10 99 64 00 0b 
+generating SI2quater for 0 EARFCNs and 0 UARFCNs...
+generated invalid SI2quater [00/00]: [23] ae ae ae ae ae ae ae ae ae ae ae ae 
ae ae ae ae ae ae ae ae ae ae ae 
+generating SI2quater for 0 EARFCNs and 1 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 0c 1a 0b 2b 2b 
2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 2 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 14 1a 1f 0b 2b 
2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 3 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 18 58 12 f0 83 
2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 4 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 20 58 2e f0 f2 
03 2b 2b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 5 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 28 58 2e 22 f2 
4e 83 2b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 6 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 34 1a 64 26 5d 
f2 05 03 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 7 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 38 58 12 22 fd 
ce 8e 05 03 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 8 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 40 58 1d 22 fa 
ce 88 85 7b 0b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 9 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 4c 7a 34 0e 64 
77 85 43 55 c8 0b 2b 2b 2b 2b 
 failed to add UARFCN to SI2quater: No space left on device
 failed to add UARFCN to SI2quater: No space left on device
-generated valid SI2quater: [23] 59 06 07 c0 00 25 0f 7c 4c 7a 34 0e 64 77 85 
43 55 c8 10 99 64 00 0b 
+generating SI2quater for 0 EARFCNs and 9 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 0f 7c 4c 7a 34 0e 64 
77 85 43 55 c8 0b 2b 2b 2b 2b 
 Test SI2quater multiple UARFCNs:
-generated valid SI2quater: [23] 59 06 07 c0 00 25 52 88 0a 7c 10 99 64 00 0b 
2b 2b 2b 2b 2b 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 52 e8 0a 7f 52 88 0a 7c 10 
99 64 00 0b 2b 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 52 e8 12 7e e0 a9 44 05 3e 
00 44 b2 00 03 2b 2b 2b 
-generated valid SI2quater: [23] 59 06 07 c0 00 25 52 e8 18 3f f4 90 54 a2 02 
9f 04 86 59 00 03 2b 2b 
+generating SI2quater for 0 EARFCNs and 1 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 52 88 0a 7c 0b 2b 2b 
2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 2 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 52 e8 0a 7f 52 88 0a 
7c 0b 2b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 3 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 52 e8 12 7e e0 a9 44 
05 3e 0b 2b 2b 2b 2b 2b 2b 2b 
+generating SI2quater for 0 EARFCNs and 4 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 52 e8 18 3f f4 90 54 
a2 02 9f 03 2b 2b 2b 2b 2b 2b 
 failed to add UARFCN to SI2quater: No space left on device
 failed to add UARFCN to SI2quater: No space left on device
 failed to add UARFCN to SI2quater: No space left on device
-generated valid SI2quater: [23] 59 06 07 c0 00 25 52 e8 18 3f f4 90 54 a2 02 
9f 04 86 59 00 03 2b 2b 
+generating SI2quater for 0 EARFCNs and 4 UARFCNs...
+generated valid SI2quater [00/00]: [23] 59 06 07 c0 00 25 52 e8 18 3f f4 90 54 
a2 02 9f 03 2b 2b 2b 2b 2b 2b 
 Done.

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ic4fb2a9e870db66cac58b1e8d113587b30d64ce2
Gerrit-PatchSet: 1
Gerrit-Project: openbsc
Gerrit-Branch: master
Gerrit-Owner: Max <msur...@sysmocom.de>

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