baseband-devel February 2012

baseband-devel@lists.osmocom.org

30 participants
37 discussions

by Victor P

Hi, I am trying to use burst_ind branch of osmocom. I have noticed that layer23 creates bursts****.dat files when it indicates uplink. What data are written to these files and what should I use to see its data? Thank you.

13 years

Reliablility problem in current git?

by Tim Ehlers

Hi, I have a git clone from 23.01.2012 and a current git clone. When I compile both and use the mobile appliation, I have a strange problem in the current code. Very often I can't send USSD codes (and maybe also can't communicate in other ways; USSD is the costless way to check whether I am connected or not). Ok, this is what I do: I send "service 1 *#21#", wait the answer and the string "% On Network, normal service: Germany, O2". Then send it again and so on. With the old code, I reliable get the answer e.g. "% Status: deactivated". With the new code, I very often (sometime already when trying first time) get nothing back and after some seconds only "% Service connection terminated.". Can someone confirm this behavior? Thanks Tim

13 years, 2 months

Use OsmocomBB as OpenBTS / airprobe clock generator

by Harald Welte

Hi! Recently we've had the idea of using OsmocomBB with a simple firmware that synchronizes to an existing GSM networks FCCH and use the resulting 13MHz clock to drive the USRP for airprobe or OpenBTS. Ideally, we would even use the Calypso-internal PLL (for ARM or DSP) to multiply it up to the required 52 MHz. However, neither the Openmoko nor the Compal/Motorola phones expose any of the 3 clock output pads :( So the only choice is to use something along the lines of the http://focus.ti.com/docs/prod/folders/print/cdcvf25084.html as a quad clock multiplier and attach it to the CLK13OUT signal of the phone. The chip is available for 9 USD in single quantities at digikey, and possibly cheaper at other sources. Combined with a sub-20EUR phone it might be a very cheap but still accurate frequency source for OpenBTS - at least as long as there are any commercial gsm networks available. Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

13 years, 3 months

[nuttx-bb] how to integrate nuttx-bb into upstream nuttx.

by Denis 'GNUtoo' Carikli

Hi, Nuttx is BSD licensed while osmocom-bb's src/target/firmware is GPLv2(or later). Mixing GPlv2 and BSD code is legally possible. As I understand it the whole work becomes GPLv2 when the code is mixed, the BSD part however can be used independently of the GPL part if you strip out the GPL part and the BSD copyright headers have to remain intact. The problem is that upstream(nuttx) will unlikely accept GPL code as-is for inclusion in nuttx. However there is a misc directory for software made under different licenses such as applications or drivers(there is one GPL driver for the rtl8187x wifi chipsets). To use the driver the user is expected to run a script that install the driver in nuttx normal source code directory. The list of files touched by the patches mades on top of nuttx and their licenses is listed here: http://bb.osmocom.org/trac/wiki/nuttx-bb/code-audit Basically the GPL parts are composed by : * the irq * the timer * the clock * the uart some of the related files have the following authors(can be combined together): * Harald Welte * Stefan Richter * Ingo Albrecht I guess Stefan Richter and Ingo Albrecht will be hard to reach. So I wonder what's the best thing to do. Denis.

13 years, 4 months

[PATCH] Added option for mobile-app to bind to other interfaces than localhost.

by Tim Ehlers

Signed-off-by: Tim Ehlers <osmocom(a)ehlers.info> --- .../layer23/include/osmocom/bb/common/l23_app.h | 1 + .../layer23/include/osmocom/bb/mobile/app_mobile.h | 2 +- src/host/layer23/src/common/main.c | 11 ++++++++++- src/host/layer23/src/mobile/app_mobile.c | 4 ++-- src/host/layer23/src/mobile/main.c | 13 ++++++++++--- .../include/osmocom/vty/telnet_interface.h | 1 + src/shared/libosmocore/src/vty/telnet_interface.c | 11 ++++++++++- 7 files changed, 35 insertions(+), 8 deletions(-) diff --git a/src/host/layer23/include/osmocom/bb/common/l23_app.h b/src/host/layer23/include/osmocom/bb/common/l23_app.h index e4c5d55..0b9994c 100644 --- a/src/host/layer23/include/osmocom/bb/common/l23_app.h +++ b/src/host/layer23/include/osmocom/bb/common/l23_app.h @@ -10,6 +10,7 @@ enum { L23_OPT_TAP = 4, L23_OPT_VTY = 8, L23_OPT_DBG = 16, + L23_OPT_VTYIP = 32, }; /* initialization, called once when starting the app, before entering diff --git a/src/host/layer23/include/osmocom/bb/mobile/app_mobile.h b/src/host/layer23/include/osmocom/bb/mobile/app_mobile.h index 4010a68..351dec3 100644 --- a/src/host/layer23/include/osmocom/bb/mobile/app_mobile.h +++ b/src/host/layer23/include/osmocom/bb/mobile/app_mobile.h @@ -4,7 +4,7 @@ char *config_dir; int l23_app_init(int (*mncc_recv)(struct osmocom_ms *ms, int, void *), - const char *config_file, uint16_t vty_port); + const char *config_file, const char *vty_ip, uint16_t vty_port); int l23_app_exit(void); int l23_app_work(int *quit); int mobile_delete(struct osmocom_ms *ms, int force); diff --git a/src/host/layer23/src/common/main.c b/src/host/layer23/src/common/main.c index eb47b26..59cee03 100644 --- a/src/host/layer23/src/common/main.c +++ b/src/host/layer23/src/common/main.c @@ -56,6 +56,7 @@ static char *sap_socket_path = "/tmp/osmocom_sap"; struct llist_head ms_list; static struct osmocom_ms *ms = NULL; static char *gsmtap_ip = NULL; +static char *vty_ip = "127.0.0.1"; unsigned short vty_port = 4247; int (*l23_app_work) (struct osmocom_ms *ms) = NULL; @@ -106,6 +107,10 @@ static void print_help() if (options & L23_OPT_DBG) printf(" -d --debug Change debug flags.\n"); + if (options & L23_OPT_VTYIP) + printf(" -u --vty-ip The VTY IP to bind telnet to. " + "(default %s)\n", vty_ip); + if (app && app->cfg_print_help) app->cfg_print_help(); } @@ -122,13 +127,14 @@ static void build_config(char **opt, struct option **option) {"sap", 1, 0, 'S'}, {"arfcn", 1, 0, 'a'}, {"gsmtap-ip", 1, 0, 'i'}, + {"vty-ip", 1, 0, 'u'}, {"vty-port", 1, 0, 'v'}, {"debug", 1, 0, 'd'}, }; app = l23_app_info(); - *opt = talloc_asprintf(l23_ctx, "hs:S:a:i:v:d:%s", + *opt = talloc_asprintf(l23_ctx, "hs:S:a:i:v:d:u:%s", app && app->getopt_string ? app->getopt_string : ""); len = ARRAY_SIZE(long_options); @@ -174,6 +180,9 @@ static void handle_options(int argc, char **argv) case 'i': gsmtap_ip = optarg; break; + case 'u': + vty_ip = optarg; + break; case 'v': vty_port = atoi(optarg); break; diff --git a/src/host/layer23/src/mobile/app_mobile.c b/src/host/layer23/src/mobile/app_mobile.c index da388b2..d911ab3 100644 --- a/src/host/layer23/src/mobile/app_mobile.c +++ b/src/host/layer23/src/mobile/app_mobile.c @@ -352,7 +352,7 @@ static struct vty_app_info vty_info = { /* global init */ int l23_app_init(int (*mncc_recv)(struct osmocom_ms *ms, int, void *), - const char *config_file, uint16_t vty_port) + const char *config_file, const char *vty_ip, uint16_t vty_port) { struct telnet_connection dummy_conn; int rc = 0; @@ -376,7 +376,7 @@ int l23_app_init(int (*mncc_recv)(struct osmocom_ms *ms, int, void *), } } vty_reading = 0; - telnet_init(l23_ctx, NULL, vty_port); + telnet_init_dynif(l23_ctx, NULL, vty_ip, vty_port); if (rc < 0) return rc; printf("VTY available on port %u.\n", vty_port); diff --git a/src/host/layer23/src/mobile/main.c b/src/host/layer23/src/mobile/main.c index 89c9b94..312bcd6 100644 --- a/src/host/layer23/src/mobile/main.c +++ b/src/host/layer23/src/mobile/main.c @@ -52,6 +52,7 @@ void *l23_ctx = NULL; struct llist_head ms_list; static char *gsmtap_ip = 0; struct gsmtap_inst *gsmtap_inst = NULL; +static char *vty_ip = "127.0.0.1"; unsigned short vty_port = 4247; int debug_set = 0; char *config_dir = NULL; @@ -88,6 +89,8 @@ static void print_help() printf(" Some help...\n"); printf(" -h --help this text\n"); printf(" -i --gsmtap-ip The destination IP used for GSMTAP.\n"); + printf(" -u --vty-ip The VTY IP to telnet to. " + "(default %s)\n", vty_ip); printf(" -v --vty-port The VTY port number to telnet to. " "(default %u)\n", vty_port); printf(" -d --debug Change debug flags. default: %s\n", @@ -104,6 +107,7 @@ static void handle_options(int argc, char **argv) static struct option long_options[] = { {"help", 0, 0, 'h'}, {"gsmtap-ip", 1, 0, 'i'}, + {"vty-ip", 1, 0, 'u'}, {"vty-port", 1, 0, 'v'}, {"debug", 1, 0, 'd'}, {"daemonize", 0, 0, 'D'}, @@ -111,7 +115,7 @@ static void handle_options(int argc, char **argv) {0, 0, 0, 0}, }; - c = getopt_long(argc, argv, "hi:v:d:Dm", + c = getopt_long(argc, argv, "hi:u:v:d:Dm", long_options, &option_index); if (c == -1) break; @@ -125,6 +129,9 @@ static void handle_options(int argc, char **argv) case 'i': gsmtap_ip = optarg; break; + case 'u': + vty_ip = optarg; + break; case 'v': vty_port = atoi(optarg); break; @@ -226,9 +233,9 @@ int main(int argc, char **argv) config_dir = dirname(config_dir); if (use_mncc_sock) - rc = l23_app_init(mncc_recv_socket, config_file, vty_port); + rc = l23_app_init(mncc_recv_socket, config_file, vty_ip, vty_port); else - rc = l23_app_init(NULL, config_file, vty_port); + rc = l23_app_init(NULL, config_file, vty_ip, vty_port); if (rc) exit(rc); diff --git a/src/shared/libosmocore/include/osmocom/vty/telnet_interface.h b/src/shared/libosmocore/include/osmocom/vty/telnet_interface.h index 2de4f19..65a1dd9 100644 --- a/src/shared/libosmocore/include/osmocom/vty/telnet_interface.h +++ b/src/shared/libosmocore/include/osmocom/vty/telnet_interface.h @@ -47,6 +47,7 @@ struct telnet_connection { }; int telnet_init(void *tall_ctx, void *priv, int port); +int telnet_init_dynif(void *tall_ctx, void *priv, const char *ip, int port); void telnet_exit(void); diff --git a/src/shared/libosmocore/src/vty/telnet_interface.c b/src/shared/libosmocore/src/vty/telnet_interface.c index 167acc1..bbc0791 100644 --- a/src/shared/libosmocore/src/vty/telnet_interface.c +++ b/src/shared/libosmocore/src/vty/telnet_interface.c @@ -18,6 +18,7 @@ * */ +#include <arpa/inet.h> #include <sys/socket.h> #include <netinet/in.h> #include <stdlib.h> @@ -59,6 +60,14 @@ static struct osmo_fd server_socket = { */ int telnet_init(void *tall_ctx, void *priv, int port) { + int rc; + rc = telnet_init_dynif(tall_ctx, priv, "127.0.0.1", port); + + return rc; +} + +int telnet_init_dynif(void *tall_ctx, void *priv, const char *ip, int port) +{ struct sockaddr_in sock_addr; int fd, rc, on = 1; @@ -78,7 +87,7 @@ int telnet_init(void *tall_ctx, void *priv, int port) memset(&sock_addr, 0, sizeof(sock_addr)); sock_addr.sin_family = AF_INET; sock_addr.sin_port = htons(port); - sock_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); + sock_addr.sin_addr.s_addr = inet_addr(ip); rc = bind(fd, (struct sockaddr*)&sock_addr, sizeof(sock_addr)); if (rc < 0) { -- 1.7.1

13 years, 4 months

neighbour cells

by jolly

hi, i improved the generation of neighbour cells of openbsc. the patch is committed at origin/jolly/rtpmux. it generated the system information messages of neighbour cells in the same and in other bands. depending on the location of the bcch and the neighbour cells, the messages SI 2/5 and optionally SI 2bis/5bis and SI 2ter/5ter are generated. i have tested it with several configurations. i would like to commit it to master. any suggestions? regards, andreas

13 years, 4 months

unbreak nuttx-bb and add support for compal_e88 phones

by Denis 'GNUtoo' Carikli

Hi, Alan Carvalho de Assis and me have been working on making nuttx-bb work on our phones( I've a gta02 and he has a Motorola W220) and here are the patches(against nuttx-bb). To try it, clone nuttx-bb and osmocom-bb, put it in the same directory and keep the name of the osmocom-bb directory. Then put the gnuarm(for 64bit) or the codesourcery(for 32bit) in your path(there is a problem with gnuarm for 32bit). Compile osmocom-bb as usual(cd osmocom-bb/src && make). Then go in nuttx-bb directory and do: cd nuttx/tools/ ./configure.sh compal_e88/nsh #for for compal_e88( gta02 and Motorola W220). ./configure.sh compal_e99/nsh #we need testers for compal_e99, we don't have one. cd ../ make That will create a nuttx.bin, load it as usual(like any other firmware for your calypso). Then the following will appear: Finished, sent 63 blocks in total Received block ack from phone Sending checksum: 0x66 Checksum on phone side matches, let's branch to your code Branching to 0x00820000 Received branch ack, your code is running now! NuttShell (NSH) To send commands to the shell you need to run loadwriter.py that is included in the source code at: nuttx/drivers/sercomm/loadwriter.py The list of commands can be found by typing help. Denis.

13 years, 4 months

set sm-rp-oa in gsm411_sms.c

by ondra2000＠centrum.cz

Hello, I need to set originating address in MO SMS (SM submit, SM-RP-OA field)... I found this field in src/host/layer23/src/mobile/gsm411_sms.c --> /* no orig Address */ data = (uint8_t *)msgb_put(msg, 1); data[0] = 0x00; /* originator length == 0 */ Field has 0 length. Can anybody pleas help me how to set this field to some MSISDN...I know that there must be some fields for TON,NPI, number ... but I don't know how to write these fields into source code... With this change i want to find out how MSC behave when is field SM-RP-OA set to some real MSISDN. Thank you! Andrew

13 years, 4 months

set sm-RP-OA in gsm411_sms.c

by ondra2000＠centrum.cz

Hello, I need to set originating address in MO SMS (SM-RP-OA)... I found this field in src/host/layer23/src/mobile/gsm411_sms.c --> /* no orig Address */ data = (uint8_t *)msgb_put(msg, 1); data[0] = 0x00; /* originator length == 0 */ Field has 0 length. Can anybody pleas help me how to set this field to some MSISDN...I know that there must be some fields for TON,NPI, number ... but I don't know how to write these fields into source code... With this change i want to find out how MSC behave when is field SM-RP-OA set to some real MSISDN. Thank you! Andrew

13 years, 4 months

nuxttx-bb issues

by Denis 'GNUtoo' Carikli

hi, Me and Alan Carvalho de Assis tried nuttx-bb on the calypso and we failed to get any serial or sercomm output. The setup: ------------ 1) clone the following repository(or add as remote and checkout the correct branch): git://git.osmocom.org/osmocom-bb git://gitorious.org/gnutoo-s-for-upstream-osmocom-bb-and-nuttx-bb/nuttx-bb- gta02.git osmocom-bb and nuttx-bb-gta02 must be in the same directory. nuttx-bb-gta02 has 2 small patches made by me. One is for fixing compilation. And the other one is the result of a diff between compal_e99's init.c and the gta02's init.c 2) setup the toolchain: we didn't use gnuarm toolchain because it gave that when compiling nuttx-bb: arm-elf-ld: ERROR: /home/gnutoo/temp/osmo/nuttx-bb-gta02/nuttx/../../osmocom- bb/src/target/firmware/comm/libcomm.a(sercomm.o) uses hardware FP, whereas /home/gnutoo/temp/osmo/nuttx-bb-gta02/nuttx/nuttx uses software FP So we tried the arm-2010.09 codesourcey we put it in the path. 3) compile osmocom-bb: cd osmocom-bb/src make clean make cd ../../ 3) compile nuttx-bb: cd nuttx-bb-gta02/nuttx cd tools ./configure.sh compal_e99/nsh cd ../ make CROSSDEV="arm-none-eabi-" clean make CROSSDEV="arm-none-eabi-" that gives a file named nuttx.bin Then I tried it to load on my om-gta02: scp nuttx.bin root(a)192.168.7.2: ssh root(a)192.168.7.2 root@om-gta02:~# /etc/init.d/dbus-1 stop Stopping system message bus: root@om-gta02:~# /etc/init.d/xserver-nodm stop Stopping XServer root@om-gta02:~# osmocon -i 13 -m romload -p /dev/ttySAC0 nuttx.bin and on another console: ssh root(a)192.168.7.2 root@om-gta02:~# echo 1 > /sys/bus/platform/devices/gta02-pm-gsm.0/download root@om-gta02:~# echo 0 >/sys/bus/platform/devices/gta02-pm-gsm.0/power_on root@om-gta02:~# echo 1 >/sys/bus/platform/devices/gta02-pm-gsm.0/power_on which results in the following on the first console: [...] Finished, sent 63 blocks in total Received block ack from phone Sending checksum: 0xf6 Checksum on phone side matches, let's branch to your code Branching to 0x00820000 Received branch ack, your code is running now! but nothing on sercomm. And nothing on IRDA serial port either.... and IRDA serial cable works too: if I do that again: root@om-gta02:~# echo 0 >/sys/bus/platform/devices/gta02-pm-gsm.0/power_on root@om-gta02:~# echo 1 >/sys/bus/platform/devices/gta02-pm-gsm.0/power_on I get the default modem software messages on the serial port... Previously I tried to print on the IRDA serial port with: cons_puts("HELLO WORLD\n\n"); in apps/examples/hello/main.c and of course enabling the hello world application in the apps config. Nothing was printed either.... here's the app config: CONFIGURED_APPS += examples/hello in apps/.config And here's the diff for the application: diff --git a/apps/examples/hello/main.c b/apps/examples/hello/main.c index 308603f..db55ac3 100644 --- a/apps/examples/hello/main.c +++ b/apps/examples/hello/main.c @@ -58,7 +58,10 @@ int user_start(int argc, char *argv[]) { - printf("Hello, World!!\n"); - return 0; + while (1){ + cons_puts("HELLO WORLD\n"); + printf("Hello, World!!\n"); + } + return 0; } Alan Carvalho de Assis tried on features phones and not on the gta02 with the same result... Denis.

13 years, 4 months

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baseband-devel February 2012