OpenBSC

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4315 discussions

[PATCH] ho: Make sure the timer is always stopped
by Holger Hans Peter Freyther 17 Dec '14

17 Dec '14

From: Holger Hans Peter Freyther <holger(a)moiji-mobile.com> In case of a ho_chan_activ_nack (sent due another bug inside both sysmobts and openbsc) the code would not stop the timer but free the datastructure. This can lead to a clear segfault when the timer has expired. Create a "free" function which is responsible to detach the handover structure, stop the timer (which is idempotent) and free the structure. --- openbsc/src/libbsc/handover_logic.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/openbsc/src/libbsc/handover_logic.c b/openbsc/src/libbsc/handover_logic.c index 22f9883..9284f7e 100644 --- a/openbsc/src/libbsc/handover_logic.c +++ b/openbsc/src/libbsc/handover_logic.c @@ -54,6 +54,13 @@ struct bsc_handover { static LLIST_HEAD(bsc_handovers); +static void handover_free(struct bsc_handover *ho) +{ + osmo_timer_del(&ho->T3103); + llist_del(&ho->list); + talloc_free(ho); +} + static struct bsc_handover *bsc_ho_by_new_lchan(struct gsm_lchan *new_lchan) { struct bsc_handover *ho; @@ -169,9 +176,7 @@ void bsc_clear_handover(struct gsm_subscriber_connection *conn, int free_lchan) if (free_lchan) lchan_release(ho->new_lchan, 0, RSL_REL_LOCAL_END); - osmo_timer_del(&ho->T3103); - llist_del(&ho->list); - talloc_free(ho); + handover_free(ho); } /* T3103 expired: Handover has failed without HO COMPLETE or HO FAIL */ @@ -186,8 +191,7 @@ static void ho_T3103_cb(void *_ho) ho->new_lchan->conn->ho_lchan = NULL; ho->new_lchan->conn = NULL; lchan_release(ho->new_lchan, 0, RSL_REL_LOCAL_END); - llist_del(&ho->list); - talloc_free(ho); + handover_free(ho); } /* RSL has acknowledged activation of the new lchan */ @@ -234,8 +238,7 @@ static int ho_chan_activ_nack(struct gsm_lchan *new_lchan) new_lchan->conn->ho_lchan = NULL; new_lchan->conn = NULL; - llist_del(&ho->list); - talloc_free(ho); + handover_free(ho); /* FIXME: maybe we should try to allocate a new LCHAN here? */ @@ -282,9 +285,7 @@ static int ho_gsm48_ho_compl(struct gsm_lchan *new_lchan) rsl_lchan_set_state(ho->old_lchan, LCHAN_S_INACTIVE); lchan_release(ho->old_lchan, 0, RSL_REL_LOCAL_END); - llist_del(&ho->list); - talloc_free(ho); - + handover_free(ho); return 0; } @@ -293,6 +294,7 @@ static int ho_gsm48_ho_fail(struct gsm_lchan *old_lchan) { struct gsm_network *net = old_lchan->ts->trx->bts->network; struct bsc_handover *ho; + struct gsm_lchan *new_lchan; ho = bsc_ho_by_old_lchan(old_lchan); if (!ho) { @@ -302,15 +304,15 @@ static int ho_gsm48_ho_fail(struct gsm_lchan *old_lchan) osmo_counter_inc(net->stats.handover.failed); - osmo_timer_del(&ho->T3103); - llist_del(&ho->list); + new_lchan = ho->new_lchan; /* release the channel and forget about it */ ho->new_lchan->conn->ho_lchan = NULL; ho->new_lchan->conn = NULL; - lchan_release(ho->new_lchan, 0, RSL_REL_LOCAL_END); + handover_free(ho); + + lchan_release(new_lchan, 0, RSL_REL_LOCAL_END); - talloc_free(ho); return 0; } -- 2.1.3

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[PATCH 1/2] bts: Add some simple dependency between different BTS
by Holger Hans Peter Freyther 17 Dec '14

17 Dec '14

From: Holger Hans Peter Freyther <holger(a)moiji-mobile.com> E.g. for the sysmoBTS2050 we have the requirement that the first board connects before the second due clocking. The easiest point to enforce this is the BSC. Add a simple bitmask based system to allow to express dependencies for IP based systems. --- openbsc/include/openbsc/gsm_data.h | 5 +++ openbsc/include/openbsc/gsm_data_shared.h | 3 ++ openbsc/src/libbsc/bsc_vty.c | 63 +++++++++++++++++++++++++++++++ openbsc/src/libbsc/bts_ipaccess_nanobts.c | 7 ++++ openbsc/src/libcommon/gsm_data.c | 58 ++++++++++++++++++++++++++++ 5 files changed, 136 insertions(+) diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h index e237ea2..89db48b 100644 --- a/openbsc/include/openbsc/gsm_data.h +++ b/openbsc/include/openbsc/gsm_data.h @@ -436,4 +436,9 @@ extern const struct value_string bts_type_descs[_NUM_GSM_BTS_TYPE+1]; int bsc_base_ctrl_cmds_install(void); int msc_ctrl_cmds_install(void); +/* dependency handling */ +void bts_depend_mark(struct gsm_bts *bts, int dep); +void bts_depend_clear(struct gsm_bts *bts, int dep); +int bts_depend_check(struct gsm_bts *bts); + #endif /* _GSM_DATA_H */ diff --git a/openbsc/include/openbsc/gsm_data_shared.h b/openbsc/include/openbsc/gsm_data_shared.h index 001a526..5d84969 100644 --- a/openbsc/include/openbsc/gsm_data_shared.h +++ b/openbsc/include/openbsc/gsm_data_shared.h @@ -720,6 +720,9 @@ struct gsm_bts { /* supported codecs beside FR */ struct bts_codec_conf codec; + + /* BTS dependencies bit field */ + uint32_t depends_on[256/(8*4)]; #endif /* ROLE_BSC */ void *role; }; diff --git a/openbsc/src/libbsc/bsc_vty.c b/openbsc/src/libbsc/bsc_vty.c index 08f9a8e..d6d66c6 100644 --- a/openbsc/src/libbsc/bsc_vty.c +++ b/openbsc/src/libbsc/bsc_vty.c @@ -650,6 +650,23 @@ static void config_write_bts_single(struct vty *vty, struct gsm_bts *bts) vty_out(vty, " %sforce-combined-si%s", bts->force_combined_si ? "" : "no ", VTY_NEWLINE); + for (i = 0; i < ARRAY_SIZE(bts->depends_on); ++i) { + int j; + + if (bts->depends_on[i] == 0) + continue; + + for (j = 0; j < sizeof(bts->depends_on[i]) * 8; ++j) { + int bts_nr; + + if ((bts->depends_on[i] & (1<<j)) == 0) + continue; + + bts_nr = (i * sizeof(bts->depends_on[i]) * 8) + j; + vty_out(vty, " depends-on-bts %d%s", bts_nr, VTY_NEWLINE); + } + } + config_write_bts_model(vty, bts); } @@ -2772,6 +2789,50 @@ DEFUN(cfg_bts_codec4, cfg_bts_codec4_cmd, return CMD_SUCCESS; } +DEFUN(cfg_bts_depends_on, cfg_bts_depends_on_cmd, + "depends-on-bts <0-255>", + "This BTS can only be started if another one is up\n" "BTS Number\n") +{ + struct gsm_bts *bts = vty->index; + struct gsm_bts *other_bts; + int dep = atoi(argv[0]); + + + if (!is_ipaccess_bts(bts)) { + vty_out(vty, "This feature is only available for IP systems.%s", + VTY_NEWLINE); + return CMD_WARNING; + } + + other_bts = gsm_bts_num(bts->network, dep); + if (!other_bts || !is_ipaccess_bts(other_bts)) { + vty_out(vty, "This feature is only available for IP systems.%s", + VTY_NEWLINE); + return CMD_WARNING; + } + + if (dep >= bts->nr) { + vty_out(vty, "%%Need to depend on an already declared unit.%s", + VTY_NEWLINE); + return CMD_WARNING; + } + + bts_depend_mark(bts, dep); + return CMD_SUCCESS; +} + +DEFUN(cfg_bts_no_depends_on, cfg_bts_no_depends_on_cmd, + "depeneds-on-bts <0-255>", + NO_STR "This BTS can only be started if another one is up\n" + "BTS Number\n") +{ + struct gsm_bts *bts = vty->index; + int dep = atoi(argv[0]); + + bts_depend_clear(bts, dep); + return CMD_SUCCESS; +} + #define TRX_TEXT "Radio Transceiver\n" /* per TRX configuration */ @@ -3383,6 +3444,8 @@ int bsc_vty_init(const struct log_info *cat) install_element(BTS_NODE, &cfg_bts_codec2_cmd); install_element(BTS_NODE, &cfg_bts_codec3_cmd); install_element(BTS_NODE, &cfg_bts_codec4_cmd); + install_element(BTS_NODE, &cfg_bts_depends_on_cmd); + install_element(BTS_NODE, &cfg_bts_no_depends_on_cmd); install_element(BTS_NODE, &cfg_trx_cmd); install_node(&trx_node, dummy_config_write); diff --git a/openbsc/src/libbsc/bts_ipaccess_nanobts.c b/openbsc/src/libbsc/bts_ipaccess_nanobts.c index 9fa03bf..825a22e 100644 --- a/openbsc/src/libbsc/bts_ipaccess_nanobts.c +++ b/openbsc/src/libbsc/bts_ipaccess_nanobts.c @@ -590,6 +590,13 @@ ipaccess_sign_link_up(void *unit_data, struct e1inp_line *line, /* remove old OML signal link for this BTS. */ ipaccess_drop_oml(bts); + if (!bts_depend_check(bts)) { + LOGP(DLINP, LOGL_NOTICE, + "Dependency not full-filled for %u/%u/%u\n", + dev->site_id, dev->bts_id, dev->trx_id); + return NULL; + } + /* create new OML link. */ sign_link = bts->oml_link = e1inp_sign_link_create(&line->ts[E1INP_SIGN_OML - 1], diff --git a/openbsc/src/libcommon/gsm_data.c b/openbsc/src/libcommon/gsm_data.c index 03e9b85..73041fc 100644 --- a/openbsc/src/libcommon/gsm_data.c +++ b/openbsc/src/libcommon/gsm_data.c @@ -364,3 +364,61 @@ int gsm_parse_reg(void *ctx, regex_t *reg, char **str, int argc, const char **ar return ret; } +/* Assume there are only 256 possible bts */ +osmo_static_assert(sizeof(((struct gsm_bts *) 0)->nr) == 1, _bts_nr_is_256); +static void depends_calc_index_bit(int bts_nr, int *idx, int *bit) +{ + *idx = bts_nr / (8 * 4); + *bit = bts_nr % (8 * 4); +} + +void bts_depend_mark(struct gsm_bts *bts, int dep) +{ + int idx, bit; + depends_calc_index_bit(dep, &idx, &bit); + + bts->depends_on[idx] |= 1 << bit; +} + +void bts_depend_clear(struct gsm_bts *bts, int dep) +{ + int idx, bit; + depends_calc_index_bit(dep, &idx, &bit); + + bts->depends_on[idx] &= ~(1 << bit); +} + +static int bts_depend_is_depedency(struct gsm_bts *base, struct gsm_bts *other) +{ + int idx, bit; + depends_calc_index_bit(other->nr, &idx, &bit); + + /* Check if there is a depends bit */ + return (base->depends_on[idx] & (1 << bit)) > 0; +} + +static int bts_is_online(struct gsm_bts *bts) +{ + /* TODO: support E1 BTS too */ + if (!is_ipaccess_bts(bts)) + return 1; + + if (!bts->oml_link) + return 0; + + return bts->mo.nm_state.operational == NM_OPSTATE_ENABLED; +} + +int bts_depend_check(struct gsm_bts *bts) +{ + struct gsm_bts *other_bts; + + llist_for_each_entry(other_bts, &bts->network->bts_list, list) { + if (!bts_depend_is_depedency(bts, other_bts)) + continue; + if (bts_is_online(other_bts)) + continue; + return 0; + } + return 1; +} -- 2.1.3

1 1

[PATCH] ipa: Set the BSC_FD_WRITE in ipa_client_conn_open
by Holger Hans Peter Freyther 12 Dec '14

12 Dec '14

From: Holger Hans Peter Freyther <holger(a)moiji-mobile.com> When the link is being created BSC_FD_WRITE and BSC_FD_READ are being ored into the flag. When the socket connects the first time the ipa_client_fd_cb function is called and the link->state is moved from connecting to connect. In case the connection drops and ipa_client_conn_open is called again the BSC_FD_WRITE flag might not be set. This means that after the socket is connected, ipa_client_fd_cb will not be called. This means that the updown_cb will not be called until after the first write or read on the socket. It might even lead to missing some data. When re-connecting set the write flag again. --- src/input/ipa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/input/ipa.c b/src/input/ipa.c index e2da6f4..1ddf802 100644 --- a/src/input/ipa.c +++ b/src/input/ipa.c @@ -218,6 +218,7 @@ int ipa_client_conn_open(struct ipa_client_conn *link) return ret; } link->ofd->fd = ret; + link->ofd->when |= BSC_FD_WRITE; if (osmo_fd_register(link->ofd) < 0) { close(ret); link->ofd->fd = -1; -- 2.1.3

1 0

Set an openBSC with demo BTS
by arik＠cybercanary.com 10 Dec '14

10 Dec '14

Hi, I'm trying to set an "OpenBSC network-in-the-box (NITB) mode" using a BTS demo/simulator, but couldn't find any good instructions guide for it. Any help will happily accepted. I followed this guide: http://openbsc.osmocom.org/trac/wiki/Building_OpenBSC and tried to use this simulator instructions: http://openbsc.osmocom.org/trac/wiki/simulation Best regards, Arik

1 0

radio priority setting
by ramesh shankar 09 Dec '14

09 Dec '14

Hello Can anybody suggest where its specified "Radio priority (PDP or SMS)" I can see radio priority setting in gprs_gmm.c but changing that is not working. also in gprs_gmm.c its mention radio_pri /* Radio priority 10.5.7.2 */ /* msgb_v_put(msg, pdp->lib->radio_pri) but under attach accept in gprs_gmm.c its aa->radio_prio = 3; are they same or typo any suggestion please RS

1 0

sms sender
by ☎ 09 Dec '14

09 Dec '14

Hi all. I recall the question of sending sms through OpenBSC via command-line popped-up few times before. Shall we add attached snippet to openbsc/contrib? -- best regards, Max, http://fairwaves.co

1 0

[PATCH 1/2] logging: Make it possible to print category/subsys and timestamps
by Holger Hans Peter Freyther 05 Dec '14

05 Dec '14

From: Holger Hans Peter Freyther <holger(a)moiji-mobile.com> We want to see from which category/subsystem a certain log message is coming from and use a different timestamp format as well. Add two new bitfields. This doesn't change the size of the structure and on 32bit we still have 27bits left. The extended timestamp will take preference over the current and default timestamp format. Fixes: SYS#602 --- include/osmocom/core/logging.h | 6 +++++ src/logging.c | 50 +++++++++++++++++++++++++++++++++++++++++- src/vty/logging_vty.c | 49 ++++++++++++++++++++++++++++++++++++++--- 3 files changed, 101 insertions(+), 4 deletions(-) diff --git a/include/osmocom/core/logging.h b/include/osmocom/core/logging.h index c37c9f3..ba41762 100644 --- a/include/osmocom/core/logging.h +++ b/include/osmocom/core/logging.h @@ -154,6 +154,10 @@ struct log_target { unsigned int print_timestamp:1; /*! \brief should log messages be prefixed with a filename? */ unsigned int print_filename:1; + /*! \brief should log messages be prefixed with a category name? */ + unsigned int print_category:1; + /*! \brief should log messages be prefixed with an extended timestamp? */ + unsigned int print_ext_timestamp:1; /*! \brief the type of this log taget */ enum log_target_type type; @@ -202,8 +206,10 @@ int log_set_context(uint8_t ctx, void *value); void log_set_all_filter(struct log_target *target, int); void log_set_use_color(struct log_target *target, int); +void log_set_print_extended_timestamp(struct log_target *target, int); void log_set_print_timestamp(struct log_target *target, int); void log_set_print_filename(struct log_target *target, int); +void log_set_print_category(struct log_target *target, int); void log_set_log_level(struct log_target *target, int log_level); void log_parse_category_mask(struct log_target *target, const char* mask); int log_parse_level(const char *lvl); diff --git a/src/logging.c b/src/logging.c index a4c3e0e..7b53277 100644 --- a/src/logging.c +++ b/src/logging.c @@ -226,6 +226,14 @@ static const char* color(int subsys) return NULL; } +static const char* category_name(int subsys) +{ + if (subsys < osmo_log_info->num_cat) + return osmo_log_info->cat[subsys].name; + + return NULL; +} + static void _output(struct log_target *target, unsigned int subsys, unsigned int level, const char *file, int line, int cont, const char *format, va_list ap) @@ -244,7 +252,17 @@ static void _output(struct log_target *target, unsigned int subsys, } } if (!cont) { - if (target->print_timestamp) { + if (target->print_ext_timestamp) { + struct tm tm; + time_t timep = time(NULL); + localtime_r(&timep, &tm); + ret = snprintf(buf + offset, rem, "%04d%02d%02d%02d%02d%02d000 ", + tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, + tm.tm_hour, tm.tm_min, tm.tm_sec); + if (ret < 0) + goto err; + OSMO_SNPRINTF_RET(ret, rem, offset, len); + } else if (target->print_timestamp) { char *timestr; time_t tm; tm = time(NULL); @@ -255,6 +273,12 @@ static void _output(struct log_target *target, unsigned int subsys, goto err; OSMO_SNPRINTF_RET(ret, rem, offset, len); } + if (target->print_category) { + ret = snprintf(buf + offset, rem, "%s ", category_name(subsys)); + if (ret < 0) + goto err; + OSMO_SNPRINTF_RET(ret, rem, offset, len); + } if (target->print_filename) { ret = snprintf(buf + offset, rem, "<%4.4x> %s:%d ", subsys, file, line); @@ -426,6 +450,19 @@ void log_set_print_timestamp(struct log_target *target, int print_timestamp) target->print_timestamp = print_timestamp; } +/*! \brief Enable or disable printing of extended timestamps while logging + * \param[in] target Log target to be affected + * \param[in] print_timestamp Enable (1) or disable (0) timestamps + * + * When both timestamp and extended timestamp is enabled then only + * the extended timestamp will be used. The format of the timestamp + * is YYYYMMDDhhmmssnnn. + */ +void log_set_print_extended_timestamp(struct log_target *target, int print_timestamp) +{ + target->print_ext_timestamp = print_timestamp; +} + /*! \brief Enable or disable printing of the filename while logging * \param[in] target Log target to be affected * \param[in] print_filename Enable (1) or disable (0) filenames @@ -435,6 +472,17 @@ void log_set_print_filename(struct log_target *target, int print_filename) target->print_filename = print_filename; } +/*! \brief Enable or disable printing of the category name + * \param[in] target Log target to be affected + * \param[in] print_catname Enable (1) or disable (0) filenames + * + * Print the category/subsys name in front of every log message. + */ +void log_set_print_category(struct log_target *target, int print_category) +{ + target->print_category = print_category; +} + /*! \brief Set the global log level for a given log target * \param[in] target Log target to be affected * \param[in] log_level New global log level diff --git a/src/vty/logging_vty.c b/src/vty/logging_vty.c index 47877fe..bb19a31 100644 --- a/src/vty/logging_vty.c +++ b/src/vty/logging_vty.c @@ -1,6 +1,6 @@ /* OpenBSC logging helper for the VTY */ /* (C) 2009-2010 by Harald Welte <laforge(a)gnumonks.org> - * (C) 2009-2010 by Holger Hans Peter Freyther + * (C) 2009-2014 by Holger Hans Peter Freyther * All Rights Reserved * * This program is free software; you can redistribute it and/or modify @@ -149,6 +149,40 @@ DEFUN(logging_prnt_timestamp, return CMD_SUCCESS; } +DEFUN(logging_prnt_ext_timestamp, + logging_prnt_ext_timestamp_cmd, + "logging print extended-timestamp (0|1)", + LOGGING_STR "Log output settings\n" + "Configure log message timestamping\n" + "Don't prefix each log message\n" + "Prefix each log message with current timestamp with YYYYMMDDhhmmssnnn\n") +{ + struct log_target *tgt = osmo_log_vty2tgt(vty); + + if (!tgt) + return CMD_WARNING; + + log_set_print_extended_timestamp(tgt, atoi(argv[0])); + return CMD_SUCCESS; +} + +DEFUN(logging_prnt_cat, + logging_prnt_cat_cmd, + "logging print category (0|1)", + LOGGING_STR "Log output settings\n" + "Configure log message\n" + "Don't prefix each log message\n" + "Prefix each log message with category/subsystem name\n") +{ + struct log_target *tgt = osmo_log_vty2tgt(vty); + + if (!tgt) + return CMD_WARNING; + + log_set_print_category(tgt, atoi(argv[0])); + return CMD_SUCCESS; +} + DEFUN(logging_level, logging_level_cmd, NULL, /* cmdstr is dynamically set in logging_vty_add_cmds(). */ @@ -625,8 +659,13 @@ static int config_write_log_single(struct vty *vty, struct log_target *tgt) vty_out(vty, " logging color %u%s", tgt->use_color ? 1 : 0, VTY_NEWLINE); - vty_out(vty, " logging timestamp %u%s", tgt->print_timestamp ? 1 : 0, - VTY_NEWLINE); + vty_out(vty, " logging print cateyory %d%s", + tgt->print_ext_timestamp ? 1 : 0, VTY_NEWLINE); + if (tgt->print_ext_timestamp) + vty_out(vty, " logging print extended-timestamp 1%s", VTY_NEWLINE); + else + vty_out(vty, " logging timestamp %u%s", + tgt->print_timestamp ? 1 : 0, VTY_NEWLINE); /* stupid old osmo logging API uses uppercase strings... */ osmo_str2lower(level_lower, log_level_str(tgt->loglevel)); @@ -670,6 +709,8 @@ void logging_vty_add_cmds(const struct log_info *cat) install_element_ve(&logging_fltr_all_cmd); install_element_ve(&logging_use_clr_cmd); install_element_ve(&logging_prnt_timestamp_cmd); + install_element_ve(&logging_prnt_ext_timestamp_cmd); + install_element_ve(&logging_prnt_cat_cmd); install_element_ve(&logging_set_category_mask_cmd); install_element_ve(&logging_set_category_mask_old_cmd); @@ -685,6 +726,8 @@ void logging_vty_add_cmds(const struct log_info *cat) install_element(CFG_LOG_NODE, &logging_fltr_all_cmd); install_element(CFG_LOG_NODE, &logging_use_clr_cmd); install_element(CFG_LOG_NODE, &logging_prnt_timestamp_cmd); + install_element(CFG_LOG_NODE, &logging_prnt_ext_timestamp_cmd); + install_element(CFG_LOG_NODE, &logging_prnt_cat_cmd); install_element(CFG_LOG_NODE, &logging_level_cmd); install_element(CONFIG_NODE, &cfg_log_stderr_cmd); -- 2.1.3

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how add multi-trx support to osmo-bts
by ehsan akhavan 01 Dec '14

01 Dec '14

Hello I know that OpenBSC support multi-trx BTS,but osmo-bts doesn't. So how i can enable this ability in osmo-bts? I see the source code and i think i should change some structures and add trx_id variable to them. but i don't know the correct way. can anyone help me?

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Announcing new gr-gsm project
by Perper 30 Nov '14

30 Nov '14

Dear all, Sorry for spamming here but I thought there is possibility that you might be interested. I was working for some time on a project of a set of GNU Radio tools for receiving GSM transmissions. As the project reached the point where it might be useful for the community I have decided to officially announce it. It is available on github with short installation and usage guides: https://github.com/ptrkrysik Currently there is one gr-gsm application that should work out of the box and it is a more reliable replacement of Airprobe. The gr-gsm has some similarities with it. The GSM receiver that I used is considerably corrected version of the receiver that I've long time ago written for the Airprobe project but with removed Airprobe's stuff that shouldn't be in my opinion mixed with the receiver (like decryption, decoding). However the goal of the project is broader than that and it is to provide a set of tools for people interested in processing of GSM signal in GNU Radio. For example - another possible applications of gr-gsm are GSM network monitor or frequency offset calibrator. For people who want to see the application in action without installing it I've prepared a short video presentation: https://www.youtube.com/watch?v=Eofnb7zr8QE&feature=youtu.be If anyone is interested in developing something for/with use of the project I can provide help and information about the project's internals by e-mail. -- Best Regards, Piotr Krysik

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GPRS attach
by ramesh shankar 28 Nov '14

28 Nov '14

Hello Getting error on implementation of gprs cannot handle GMM for unknown MM CTX MS identity cannot be derived by the network can somebody suggest why and what can I do to fix it. log file for sgsn. <0010> gprs_ns.c:199 NSVCI=65534 Creating NS-VC <0010> gprs_ns.c:199 NSVCI=65535 Creating NS-VC <0010> gprs_ns.c:1200 Creating NS-VC for BSS at 192.168.2.12:23000 <0010> gprs_ns.c:774 NSVCI=65535(invalid) Rx NS RESET (NSEI=101, NSVCI=101, cause=O&M intervention) <0010> gprs_ns.c:594 NSEI=101 Tx NS RESET ACK (NSVCI=101) <0010> gprs_ns.c:512 NSEI=101 Starting timer in mode tns-test (30 seconds) <0010> gprs_ns.c:512 NSEI=101 Starting timer in mode tns-test (30 seconds) <0010> gprs_ns.c:1281 NSEI=101 Rx NS UNBLOCK <0011> gprs_bssgp.c:249 BSSGP BVCI=0 Rx RESET cause=Transmission capacity modified <0011> gprs_bssgp.c:344 BSSGP BVCI=2 Rx BVC-UNBLOCK <0011> gprs_bssgp_util.c:103 BSSGP BVCI=2 Tx STATUS, cause=Unknown BVCI <0011> gprs_bssgp.c:249 BSSGP BVCI=2 Rx RESET cause=O&M intervention <0011> gprs_bssgp.c:272 Cell 302-720-7-0 CI 8 on BVCI 2 <0011> gprs_bssgp.c:344 BSSGP BVCI=2 Rx BVC-UNBLOCK <0011> gprs_bssgp.c:753 BSSGP BVCI=2 Rx Flow Control BVC <0011> gprs_bssgp.c:790 BSS instructs us to MS default bucket leak rate != 0, restarting DL GPRS! <0011> gprs_bssgp.c:376 BSSGP TLLI=0xb4c2fd41 Rx UPLINK-UNITDATA <0012> gprs_llc.c:568 LLC SAPI=1 C FCS=0x7439ebCMD=UI DATA <0012> gprs_llc.c:95 TLLI 0xb4c2fd41 is foreign, converting to local TLLI 0xf4c2fd41 <0012> gprs_llc.c:95 TLLI 0xb4c2fd41 is foreign, converting to local TLLI 0xf4c2fd41 <0012> gprs_llc.c:254 LLC RX: unknown TLLI 0xb4c2fd41, creating LLME on the fly <0002> gprs_gmm.c:924 -> GMM RA UPDATE REQUEST type="RA updating" LLC XID RESET REJECT <0002> gprs_gmm.c:861 <- ROUTING AREA UPDATE REJECT <0012> gprs_llc.c:95 TLLI 0xb4c2fd41 is foreign, converting to local TLLI 0xf4c2fd41 <0011> gprs_bssgp.c:753 BSSGP BVCI=2 Rx Flow Control BVC <0011> gprs_bssgp.c:376 BSSGP TLLI=0xb4c2fd41 Rx UPLINK-UNITDATA <0012> gprs_llc.c:568 LLC SAPI=1 C FCS=0x9ab10aCMD=UI DATA <0012> gprs_llc.c:95 TLLI 0xb4c2fd41 is foreign, converting to local TLLI 0xf4c2fd41 <0012> gprs_llc.c:241 LLC RX: Found a local entry for TLLI 0xb4c2fd41 <0012> gprs_llc.c:615 TLLI=f4c2fd41 dropping UI, N(U=0) not in window V(URV(UR:3). <0010> gprs_ns.c:530 NSEI=101 Timer expired in mode tns-test (30 seconds) <0010> gprs_ns.c:473 NSEI=101 Tx NS ALIVE (NSVCI=101) <0010> gprs_ns.c:512 NSEI=101 Starting timer in mode tns-alive (10 seconds) <0010> gprs_ns.c:486 NSEI=101 Tx NS ALIVE_ACK (NSVCI=101) <0010> gprs_ns.c:512 NSEI=101 Starting timer in mode tns-test (30 seconds) <0011> gprs_bssgp.c:753 BSSGP BVCI=2 Rx Flow Control BVC <0011> gprs_bssgp.c:753 BSSGP BVCI=2 Rx Flow Control BVC <0011> gprs_bssgp.c:376 BSSGP TLLI=0x9ec3b021 Rx UPLINK-UNITDATA <0012> gprs_llc.c:568 LLC SAPI=1 C FCS=0x79a5b6CMD=UI DATA <0012> gprs_llc.c:95 TLLI 0x9ec3b021 is foreign, converting to local TLLI 0xdec3b021 <0012> gprs_llc.c:95 TLLI 0x9ec3b021 is foreign, converting to local TLLI 0xdec3b021 <0012> gprs_llc.c:254 LLC RX: unknown TLLI 0x9ec3b021, creating LLME on the fly <0002> gprs_gmm.c:924 -> GMM RA UPDATE REQUEST type="RA updating" LLC XID RESET REJECT <0002> gprs_gmm.c:861 <- ROUTING AREA UPDATE REJECT <0012> gprs_llc.c:95 TLLI 0x9ec3b021 is foreign, converting to local TLLI 0xdec3b021 <0011> gprs_bssgp.c:753 BSSGP BVCI=2 Rx Flow Control BVC <0011> gprs_bssgp.c:376 BSSGP TLLI=0x7b549435 Rx UPLINK-UNITDATA <0012> gprs_llc.c:568 LLC SAPI=1 C FCS=0xd1bcf4CMD=UI DATA <0012> gprs_llc.c:254 LLC RX: unknown TLLI 0x7b549435, creating LLME on the fly <0002> gprs_gmm.c:640 -> GMM ATTACH REQUEST MI(302720xxxxxxxxx) type="GPRS attach" <0002> gprs_gmm.c:444 <- GPRS IDENTITY REQUEST: mi_type=02 <0011> gprs_bssgp.c:376 BSSGP TLLI=0x7b549435 Rx UPLINK-UNITDATA <0012> gprs_llc.c:568 LLC SAPI=1 C FCS=0x4567cfCMD=UI DATA <0002> gprs_gmm.c:1033 Cannot handle GMM for unknown MM CTX <0002> gprs_gmm.c:277 <- GPRS MM STATUS (cause: MS identity cannot be derived by the network) <0011> gprs_bssgp.c:753 BSSGP BVCI=2 Rx Flow Control BVC <0011> gprs_bssgp.c:376 BSSGP TLLI=0x9ec20d01 Rx UPLINK-UNITDATA <0012> gprs_llc.c:568 LLC SAPI=1 C FCS=0x365438CMD=UI DATA <0012> gprs_llc.c:95 TLLI 0x9ec20d01 is foreign, converting to local TLLI 0xdec20d01 <0012> gprs_llc.c:95 TLLI 0x9ec20d01 is foreign, converting to local TLLI 0xdec20d01 <0012> gprs_llc.c:254 LLC RX: unknown TLLI 0x9ec20d01, creating LLME on the fly <0002> gprs_gmm.c:924 -> GMM RA UPDATE REQUEST type="RA updating" LLC XID RESET REJECT <0002> gprs_gmm.c:861 <- ROUTING AREA UPDATE REJECT ramesh

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