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4315 discussions

Re: Support for binary SMS (GSM 03.48)
by Robert Light 07 Mar '14

07 Mar '14

Hi, I am also interested in being able to send SMS messages. Harald, the question is interesting, as I not only want to send "normal" messages but also "special" messages, like silent SMS, or messages formatted with ie SharpSMS. https://github.com/pbansky/SharpSMS I know that there are applications for mobile devices allowing to format these kind of SMS messages but this can be done much easier if we could do it from a PC. I am also interested in how can it be done with OpenBSC and OpenBTS. Robert > Date: Wed, 5 Mar 2014 22:04:06 +0100 > From: Harald Welte <laforge(a)gnumonks.org> > To: George News <george.news(a)gmx.net> > Cc: Holger Hans Peter Freyther <holger(a)freyther.de>, > openbsc(a)lists.osmocom.org > Subject: Re: Support for binary SMS (GSM 03.48) > > On Tue, Mar 04, 2014 at 09:10:48PM +0100, George News wrote: > > Could you please give me an extra hint about the library or application > > I have to run. I'm quite new to the environment. > > If you're not familiar with the network side of GSM, I suggest you > simply send a binary SMS from one phone (attached to OpenBSC) to another > phone (also attached to OpenBSC). This is implemented for > 7bit/ucs2/binary SMS. >

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[PATCH] nitb: Add a test for "show network" in the python testsuite.
by Ciaby 06 Mar '14

06 Mar '14

Added to detect breakage in the VTY interface, caused by: a9fae1ae66df57f76a0aedbd0b56228959d37d56 bsc: rf_ctrl will always be created, remove the NULL checks --- openbsc/tests/vty_test_runner.py | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/openbsc/tests/vty_test_runner.py b/openbsc/tests/vty_test_runner.py index 7c8fe8c..9975d85 100644 --- a/openbsc/tests/vty_test_runner.py +++ b/openbsc/tests/vty_test_runner.py @@ -248,6 +248,10 @@ class TestVTYNITB(TestVTYGenericBSC): res = self.vty.command("show paging-group 0 1234567") self.assertEquals(res, "%Paging group for IMSI 1234567 on BTS #0 is 7") + def testShowNetwork(self): + res = self.vty.command("show network") + self.assert_(res.startswith('BSC is on Country Code') >= 0) + class TestVTYBSC(TestVTYGenericBSC): def vty_command(self): -- 1.7.9.5

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[PATCH] bsc,nitb: Store rf_ctrl in the net structure in osmo-nitb.
by Alexander Chemeris 06 Mar '14

06 Mar '14

Hi all, Prevent crash introduced in the a9fae1ae commit. Call "show network" in the NITB VTY without any BTS connected to reproduce the crash. Before it was stored in a local variable, but accessed from a net structure in the msc_signal_handler(). -- Regards, Alexander Chemeris. CEO, Fairwaves, Inc. / ООО УмРадио https://fairwaves.co

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2 OpenBSC moderator request(s) waiting
by openbsc-bounces＠lists.osmocom.org 06 Mar '14

06 Mar '14

The OpenBSC(a)lists.osmocom.org mailing list has 2 request(s) waiting for your consideration at: https://lists.osmocom.org/mailman/admindb/openbsc Please attend to this at your earliest convenience. This notice of pending requests, if any, will be sent out daily. Pending posts: From: tlab.tester(a)googlemail.com on Mon Mar 3 13:01:09 2014 Subject: Unsubscribe Cause: Message may contain administrivia From: zielonka.markus(a)googlemail.com on Mon Mar 3 15:16:07 2014 Subject: unsubscribe Cause: Message may contain administrivia

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Support for binary SMS (GSM 03.48)
by George News 05 Mar '14

05 Mar '14

Hi all, ¿Is it possible to use the OpenBSC system to send binary SMS? If yes how? and if not could you please point me on how to start the development? I know using the monitor app with the motorola phone is possible to send sms and make calls. Now I want to send binary SMS (03.48). TA. Jorge

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[PATCH 1/2] msgb: Add msgb_hexdump() function
by Jacob Erlbeck 04 Mar '14

04 Mar '14

This function works like osmo_hexdump() and return a static buffer containing hex bytes along with markes for the layers. Sponsored-by: On-Waves ehf --- include/osmocom/core/msgb.h | 1 + src/msgb.c | 48 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+) diff --git a/include/osmocom/core/msgb.h b/include/osmocom/core/msgb.h index c4be0c3..33e8081 100644 --- a/include/osmocom/core/msgb.h +++ b/include/osmocom/core/msgb.h @@ -73,6 +73,7 @@ extern void msgb_enqueue(struct llist_head *queue, struct msgb *msg); extern struct msgb *msgb_dequeue(struct llist_head *queue); extern void msgb_reset(struct msgb *m); uint16_t msgb_length(const struct msgb *msg); +extern const char *msgb_hexdump(const struct msgb *msg); #ifdef MSGB_DEBUG #include <osmocom/core/panic.h> diff --git a/src/msgb.c b/src/msgb.c index 359a545..98c7d79 100644 --- a/src/msgb.c +++ b/src/msgb.c @@ -153,4 +153,52 @@ void msgb_set_talloc_ctx(void *ctx) tall_msgb_ctx = ctx; } +/*! \brief Return (static) buffer containing a hexdump of the msg + * \param[in] msg message buffer + * \returns a pointer to a static char array + */ +const char *msgb_hexdump(const struct msgb *msg) +{ + static char buf[4100]; + int buf_offs = 0; + int nchars; + const unsigned char *start = msg->data; + const unsigned char *lxhs[4]; + int i; + + lxhs[0] = msg->l1h; + lxhs[1] = msg->l2h; + lxhs[2] = msg->l3h; + lxhs[3] = msg->l4h; + + for (i = 0; i < ARRAY_SIZE(lxhs); i++) { + if (lxhs[i]) { + if (lxhs[i] < msg->data) + goto out_of_range; + if (lxhs[i] > msg->tail) + goto out_of_range; + nchars = snprintf(buf + buf_offs, sizeof(buf) - buf_offs, + "%s[L%d]> ", + osmo_hexdump(start, lxhs[i] - start), + i+1); + if (nchars < 0 || nchars + buf_offs >= sizeof(buf)) + return "ERROR"; + + buf_offs += nchars; + start = lxhs[i]; + } + } + nchars = snprintf(buf + buf_offs, sizeof(buf) - buf_offs, + "%s", osmo_hexdump(start, msg->tail - start)); + if (nchars < 0 || nchars + buf_offs >= sizeof(buf)) + return "ERROR"; + + return buf; + +out_of_range: + nchars = snprintf(buf, sizeof(buf) - buf_offs, + "!!! L%d out of range", i+1); + return buf; +} + /*! @} */ -- 1.7.9.5

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[PATCH 1/8] agch: Recalculate length limit of AGCH queue
by Jacob Erlbeck 03 Mar '14

03 Mar '14

This patch adds a function bts_update_agch_max_queue_length() to compute a limit of the AGCH queue. This is based on the idea, that the AGCH queue has a limited drain rate and that CHANNEL REQUESTs must be answered within a certain time frame, given by the minimum value of T3126 (see GSM 04.08). When the AGCH queue reaches that limit, the last message would be delivered in time if there were no other delays involved (which is not the case). The calculation is based on the ratio of the number RACH slots and CCCH blocks per time: Lmax = (T + 2*S) / R_RACH * R_CCCH where T3126_min = (T + 2*S) / R_RACH R_RACH is the RACH slot rate (e.g. RACHs per multiframe) R_CCCH is the CCCH block rate (same time base like R_RACH) The value depends control_channel_desc.ccch_conf and rach_control.tx_integer (both from SYSINFO_TYPE_3) and should therefore by called at least each time after one of these is changed. For this reason, a signal callback is registered under SS_GLOBAL/S_NEW_SYSINFO which invokes bts_update_agch_max_queue_length(). Based-On: "bts: Calculate length of agch queue" by Ivan Kluchnikov <kluchnikovi(a)gmail.com> --- include/osmo-bts/bts.h | 1 + include/osmo-bts/gsm_data.h | 1 + src/common/bts.c | 86 ++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 87 insertions(+), 1 deletion(-) diff --git a/include/osmo-bts/bts.h b/include/osmo-bts/bts.h index 49ef617..ec061e8 100644 --- a/include/osmo-bts/bts.h +++ b/include/osmo-bts/bts.h @@ -26,6 +26,7 @@ void bts_setup_slot(struct gsm_bts_trx_ts *slot, uint8_t comb); int bts_agch_enqueue(struct gsm_bts *bts, struct msgb *msg); struct msgb *bts_agch_dequeue(struct gsm_bts *bts); +void bts_update_agch_max_queue_length(struct gsm_bts *bts); int bts_ccch_copy_msg(struct gsm_bts *bts, uint8_t *out_buf, struct gsm_time *gt, int is_ag_res); diff --git a/include/osmo-bts/gsm_data.h b/include/osmo-bts/gsm_data.h index aee56a9..ea3fa5e 100644 --- a/include/osmo-bts/gsm_data.h +++ b/include/osmo-bts/gsm_data.h @@ -50,6 +50,7 @@ struct gsm_bts_role_bts { uint8_t max_ta; struct llist_head agch_queue; int agch_queue_length; + int agch_max_queue_length; struct paging_state *paging_state; char *bsc_oml_host; unsigned int rtp_jitter_buf_ms; diff --git a/src/common/bts.c b/src/common/bts.c index 7bbf587..2a6c1bd 100644 --- a/src/common/bts.c +++ b/src/common/bts.c @@ -42,6 +42,7 @@ #include <osmo-bts/bts_model.h> #include <osmo-bts/rsl.h> #include <osmo-bts/oml.h> +#include <osmo-bts/signal.h> struct gsm_network bts_gsmnet = { @@ -51,11 +52,32 @@ struct gsm_network bts_gsmnet = { void *tall_bts_ctx; +/* Table 3.1 TS 04.08: Values of parameter S */ +static const uint8_t tx_integer[] = { + 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 20, 25, 32, 50, +}; + +static const uint8_t s_values[][2] = { + { 55, 41 }, { 76, 52 }, { 109, 58 }, { 163, 86 }, { 217, 115 }, +}; + +static int bts_signal_cbfn(unsigned int subsys, unsigned int signal, + void *hdlr_data, void *signal_data) +{ + if (subsys == SS_GLOBAL && signal == S_NEW_SYSINFO) { + struct gsm_bts *bts = signal_data; + + bts_update_agch_max_queue_length(bts); + } + return 0; +} + int bts_init(struct gsm_bts *bts) { struct gsm_bts_role_bts *btsb; struct gsm_bts_trx *trx; int rc; + static int initialized = 0; /* add to list of BTSs */ llist_add_tail(&bts->list, &bts_gsmnet.bts_list); @@ -110,6 +132,11 @@ int bts_init(struct gsm_bts *bts) bts_gsmnet.num_bts++; + if (!initialized) { + osmo_signal_register_handler(SS_GLOBAL, bts_signal_cbfn, NULL); + initialized = 1; + } + return rc; } @@ -209,11 +236,68 @@ int lchan_init_lapdm(struct gsm_lchan *lchan) return 0; } +#define CCCH_RACH_RATIO_COMBINED256 (256*1/9) +#define CCCH_RACH_RATIO_SEPARATE256 (256*10/55) + +void bts_update_agch_max_queue_length(struct gsm_bts *bts) +{ + struct gsm_bts_role_bts *btsb = bts_role_bts(bts); + struct gsm48_system_information_type_3 *si3; + int T, S, ccch_rach_ratio256, i; + int T_group = 0; + int ccch_comb = 0; + int old_max_length = btsb->agch_max_queue_length; + + if (!(bts->si_valid & (1<<SYSINFO_TYPE_3))) + return; + + si3 = GSM_BTS_SI(bts, SYSINFO_TYPE_3); + + if (si3->control_channel_desc.ccch_conf == 1) + ccch_comb = 1; + + /* + * The calculation is based on the ratio of the number RACH slots and + * CCCH blocks per time: + * Lmax = (T + 2*S) / R_RACH * R_CCCH + * where + * T3126_min = (T + 2*S) / R_RACH, as defined in GSM 04.08, 11.1.1 + * R_RACH is the RACH slot rate (e.g. RACHs per multiframe) + * R_CCCH is the CCCH block rate (same time base like R_RACH) + * S and T are defined in GSM 04.08, 3.3.1.1.2 + * The ratio is mainly influenced by the downlink only channels + * (BCCH, FCCH, SCH, CBCH) that can not used for CCCH. + * An estimation with an error of < 10% is used: + * ~ 1/9 if CCCH is combined with SDCCH, and + * ~ 1/5.5 otherwise. + */ + ccch_rach_ratio256 = ccch_comb ? + CCCH_RACH_RATIO_COMBINED256 : + CCCH_RACH_RATIO_SEPARATE256; + + T = si3->rach_control.tx_integer; + for (i = 0; i < 15; i++) { + if (tx_integer[i] == T) { + T_group = i % 5; + break; + } + } + S = s_values[T_group][ccch_comb]; + + btsb->agch_max_queue_length = (T + 2 * S) * ccch_rach_ratio256 / 256; + + if (btsb->agch_max_queue_length != old_max_length) + LOGP(DRSL, LOGL_INFO, "Updated AGCH max queue length to %d, " + "T = %d, S = %d, CCCH/RACH = %d%%, AG_BLK_RES = %d\n", + btsb->agch_max_queue_length, + T, S, ccch_rach_ratio256 * 100 / 256, + si3->control_channel_desc.bs_ag_blks_res); +} + int bts_agch_enqueue(struct gsm_bts *bts, struct msgb *msg) { struct gsm_bts_role_bts *btsb = bts_role_bts(bts); - /* FIXME: implement max queue length */ msgb_enqueue(&btsb->agch_queue, msg); btsb->agch_queue_length++; -- 1.7.9.5

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[osmo-bts PATCH 1/3] src/misc/sysmobts_misc: Fixed wrong TEMP_PATH
by Alvaro Neira 27 Feb '14

27 Feb '14

From: Álvaro Neira Ayuso <anayuso(a)sysmocom.de> Before, this patch the program try to catch the info of the temperature sensor in a wrong ubication file. Signed-off-by: Alvaro Neira Ayuso <anayuso(a)sysmocom.de> --- src/osmo-bts-sysmo/misc/sysmobts_misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/osmo-bts-sysmo/misc/sysmobts_misc.c b/src/osmo-bts-sysmo/misc/sysmobts_misc.c index 74414d0..c043045 100644 --- a/src/osmo-bts-sysmo/misc/sysmobts_misc.c +++ b/src/osmo-bts-sysmo/misc/sysmobts_misc.c @@ -45,7 +45,7 @@ * Temperature handling *********************************************************************/ -#define TEMP_PATH "/sys/class/hwmon/hwmon0/device%u_%s" +#define TEMP_PATH "/sys/class/hwmon/hwmon0/device/temp%u_%s" static const char *temp_type_str[_NUM_TEMP_TYPES] = { [SYSMOBTS_TEMP_INPUT] = "input",

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TOMORROW: Osmocom Berlin User Group meeting
by dexter 25 Feb '14

25 Feb '14

Hi All. It's time Again! This is the announcement for the next Osmocom Berlin meeting. Tomorrow, 8pm @ CCC Berlin, Marienstr. 11, 10117 Berlin There is no formal presentation scheduled for this meeting. If you are interested to show up, feel free to do so. There is no registration required. The meeting is free as in "free beer", despite no actual free beer being around. I am looking forward to see you there! regards. Philipp

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[PATCH] db: use WAL journaling mode for higher concurrency
by Alexey Shamrin 22 Feb '14

22 Feb '14

SQLite uses DELETE journaling mode by default. It became a problem on a real-world, actively used network (several hundred subscribers, several thousands SMS per day). Some location updates and SMS delivery marks were not getting written because database file was locked: 2013-12-13_07:26:10.10665 <0002> gsm_subscriber.c:362 Subscriber 334020422525672 ATTACHED LAC=3 2013-12-13_07:26:10.10668 <000d> db.c:170 DBI: 5: database is locked 2013-12-13_07:26:10.10865 <000d> db.c:969 Failed to update Subscriber (by IMSI). Switching to WAL mode fixed the problem. WAL journaling mode is persistent; it stays in effect after closing and reopening the database. WAL mode database requires SQLite >= 3.7.0. All credit belongs Ivan Kluchnikov who diagnosed and fixed this issue. --- openbsc/src/libmsc/db.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletions(-) diff --git a/openbsc/src/libmsc/db.c b/openbsc/src/libmsc/db.c index e720c78..3a989d4 100644 --- a/openbsc/src/libmsc/db.c +++ b/openbsc/src/libmsc/db.c @@ -232,11 +232,18 @@ static int db_configure(void) dbi_result result; result = dbi_conn_query(conn, + "PRAGMA journal_mode = WAL"); + if (!result) + LOGP(DDB, LOGL_NOTICE, "Warning: failed to set journal_mode = WAL.\n"); + else + dbi_result_free(result); + + result = dbi_conn_query(conn, "PRAGMA synchronous = FULL"); if (!result) return -EINVAL; - dbi_result_free(result); + return 0; } -- 1.7.7.5 (Apple Git-26)

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