baseband-devel November 2012

baseband-devel@lists.osmocom.org

20 participants
30 discussions

by Akib Sayyed

Dear all i am unable to flash firmware of C118 with RSSI.bin i am using 64bit Ubuntu.and 64bit gnu toolchain -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243

12 years, 7 months

Re: Programming SIM card RAND?

by Dieter Spaar

Hello Andrew, On Mon, 12 Nov 2012 10:25:19 +0000, "Andrew Back" <andrew(a)carrierdetect.com> wrote: > > I'm trying to get some MS test equipment working and have programmed a > SIM with pysim-prog.py, but the tester has a configuration field for > RAND and I cannot see how to set this on the SIM. In fact this has > confused me as I thought the network always supplied this... Most certainly the RAND value of your MS tester is the value which is sent during authentication. All MS testers I have seen so far allow to configure this value, either use random data or set it to a fixed value. > I have the IMSI, Ki, MCC and MNC set the same on the tester and SIM, > but tests don't get very far and fail with "incorrect SRES". I would expect that you need a SIM card which supports XOR for A3/A8. This algorithm is the only one I have seen on nearly all MS tests sets I have access to. Those test sets usually don't support COMP128 and its variants (I guess your SIM card only supports this algorithm), so you need a SIM card which uses the same algorithm as the MS test set. However if you can set a fixed RAND value on the MS test set you can check what your SIM card will return with this RAND and set Kc and SRES on the test set to those values. Best regards, Dieter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de

12 years, 7 months

Re: Using 900/1800 C118 on 1900

by Akib Sayyed

i ordered stuff to modify phones. just waiting for them to be delivered On Sat, Nov 24, 2012 at 3:48 PM, Marten Christophe <technosabby(a)gmail.com>wrote: > Hello Akib, > > > Have you able to sniff TCH channel or intercept other phone calls by > OsmocomBB > > Regards, > dev > > On Tue, Nov 20, 2012 at 7:37 AM, Akib Sayyed <akibsayyed(a)gmail.com> wrote: > > phone with filter rework will work right and i also will be able to sniff > > traffic on 1900mhz witnh burst_ind.but my issue is how to tell code of > > app_ccch to sniff 1900 mhz instead of 1800 as they share same arfcn no?? > > > > > > > > On Tue, Nov 20, 2012 at 10:33 AM, Harald Welte <laforge(a)gnumonks.org> > wrote: > >> > >> On Mon, Nov 19, 2012 at 07:24:45AM +0300, Akib Sayyed wrote: > >> > Guys is wanted to know if there is any tweak that can allow me to use > >> > 900/1800 C118 phone on 1900 band. > >> > >> you have to remove the shielding cover and replace the 1800 band filters > >> with footprint-compatible 1900 MHz filters. It's possible, but requires > >> good SMD soldering skills and access to the right parts. > >> > >> You can also remove the filters completely. This will hovever > >> significantly degrade receiver performance in the presence of > >> out-of-band interferers. > >> > >> -- > >> - 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) > > > > > > > > > > -- > > Akib Sayyed > > Matrix-Shell > > akibsayyed(a)gmail.com > > akibsayyed(a)matrixshell.com > > Mob:- +91-966-514-2243 > > > > > -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243

12 years, 7 months

is my decode for efr decode right?

by bob

Hi, list I write a decode for efr decode for TCH,but there some bug, and I have not a debug device, Can someone help me find the problem, Thanks! static void process_tch_efr(struct osmocom_ms *ms,struct l1ctl_burst_ind *bi) { int16_t rx_dbm; uint16_t arfcn; uint32_t fn,B; uint8_t cbits, tn, lch_idx; int ul, bid, i, k, length; sbit_t *bursts, mC[456]; ubit_t steal_bit[2], bt[114],convu[189],convd[189],tch_raw[260],TCHW[260],EFRBits[244],EFRAMR[8 + 244]; pbit_t voice[33]; /* Get params (Only for SDCCH and SACCH/{4,8,F,H}) */ arfcn = ntohs(bi->band_arfcn); rx_dbm = rxlev2dbm(bi->rx_level); fn = ntohl(bi->frame_nr); ul = !!(arfcn & ARFCN_UPLINK); cbits = bi->chan_nr >> 3; tn = bi->chan_nr & 7; B = -1; if((fn%13)%4 == 0) flag= 1; if(!flag) return; //B = count_tch % 8; B = (fn % 13) % 8; printf("fn % 26 = %d, fn % 13 = %d,B = %d\n",fn%26 ,fn%13 ,B); if (B == -1) return; /* Unpack (ignore hu/hl) */ osmo_pbit2ubit_ext(bt, 0, bi->bits, 0, 57, 0); osmo_pbit2ubit_ext(bt, 57, bi->bits, 57, 57, 0); //osmo_pbit2ubit_ext(steal_bit, 0 , bi->bits, 114 , 2 , 0); //printf("steal_bit %x , %x\n",steal_bit[0],steal_bit[1]); /* save stealing flags */ hl[B] = !!(bi->bits[14] & 0x10); // hl 57 hu[B] = !!(bi->bits[14] & 0x20); // hu 58 printf("steal_bit %x , %x\n", hl[B],hu[B]); /* Convert to softbits */ for (i=0; i<114; i++) app_state.mI[B][i] = bt[i] ? - (bi->snr >> 1) : (bi->snr >> 1); count_tch++; // Deinterleave according to the diagonal "phase" of B. // See GSM 05.03 3.1.3. // Deinterleaves i[] to c[] if((B % 4 ==3)&&(count_tch >= 7)){ if(B == 3) { if(!hl[0] && !hl[1] && !hl[2] && !hl[3] && !hu[4] && !hu[5] && !hu[6] && !hu[7]) { tch_deinterleave(mC, 4); } else if(hl[0] && hl[1] && hl[2] && hl[3] && hu[4] && hu[5] && hu[6] && hu[7]) { printf(" may be FACCH.\n"); return; }else{ printf("not a speech frame.\n"); return; } }else{ if(!hl[4] && !hl[5] && !hl[6] && !hl[7] && !hu[0] && !hu[1] && !hu[2] && !hu[3]) { tch_deinterleave(mC,0); } else if(hl[4] && hl[5] && hl[6] && hl[7] && hu[0] && hu[1] && hu[2] && hu[3]) { printf(" may be FACCH.\n"); return; }else{ printf("not a speech frame.\n"); return; } } //mC is soft bit, and must convert to ubit type for (k = 0; k < 78; k++) { if(mC[378 + k] < 0){ tch_raw[182 + k] = 1; }else{ tch_raw[182 + k] = 0; } } osmo_conv_decode(&conv_tch_afs_12_2, mC, convu); // 3.1.2.1 // copy class 1 bits u[] to d[] for (k = 0; k <= 90; k++) { convd[2*k] = convu[k]; convd[2*k+1] = convu[184-k]; } memcpy(tch_raw,convd,182); // the last 78 bit has been stored! //now only process EFR or AMR 12_2, fix me! tch_unmap(gsm660_bitorder, 260, TCHW, tch_raw); // Remove repeating bits and CRC to get raw EFR frame (244 bits) for (k=0; k<71; k++) EFRBits[k] = TCHW[k]; for (k=73; k<123; k++) EFRBits[k-2] = TCHW[k]; for (k=125; k<178; k++) EFRBits[k-4] = TCHW[k]; for (k=180; k<230; k++) EFRBits[k-6] = TCHW[k]; for (k=232; k<252; k++) EFRBits[k-8] = TCHW[k]; // Map bits as AMR 12.2k tch_map(gsm690_12_2_bitorder, 244, EFRAMR + 8,EFRBits); fillField(EFRAMR, 0, 0x3c, 8); length = osmo_ubit2pbit_ext(voice, 0, EFRAMR, 0, 8 + gsm690_12_2_len, 0); fwrite(voice, 1, length, d_speech_file); } } -- View this message in context: http://baseband-devel.722152.n3.nabble.com/is-my-decode-for-efr-decode-righ… Sent from the baseband-devel mailing list archive at Nabble.com.

12 years, 7 months

Re: osmocom-commitlog Digest, Vol 551, Issue 1

by Andreas Eversberg

osmocom-commitlog-request(a)lists.osmocom.org wrote: > commit 73a809e57b8a531b9b8a33b6841ed3df2ea22620 > Author: Harald Welte<laforge(a)gnumonks.org> > Date: Tue Nov 20 10:13:44 2012 +0100 > > Tell L1CTL_FBSB_REQ the expected received signal level > hi harald, please note that cell_log.c and mobile (gsm322.c) use signed uint8_t for real rx-level (dbm). i think you should use dbm2rxlev() before handing it to l1ctl_tx_fbsb_req(). regards, andreas

12 years, 7 months

gsm322.c:arfcn2index patch

by Joshua Lackey

(This is a patch against the latest, as of last night, git master.) If you enable PCS, you'll never make it out of power-measurement without this patch: (This should be applied by everyone.) ---8<--- diff --git a/src/host/layer23/src/mobile/gsm322.c b/src/host/layer23/src/mobile/gsm322.c index ce5e1e1..ffecfc3 100644 --- a/src/host/layer23/src/mobile/gsm322.c +++ b/src/host/layer23/src/mobile/gsm322.c @@ -300,11 +300,14 @@ uint16_t index2arfcn(int index) int arfcn2index(uint16_t arfcn) { - if ((arfcn & ARFCN_PCS) && arfcn >= 512 && arfcn <= 810) + int is_pcs = arfcn & ARFCN_PCS; + arfcn &= ~ARFCN_FLAG_MASK; + if ((is_pcs) && (arfcn >= 512) && (arfcn <= 810)) return (arfcn & 1023)-512+1024; return arfcn & 1023; } + static char *bargraph(int value, int min, int max) { static char bar[128]; ---8<--- If you enable PCS, you'll never receive packets without this patch: (which I only include for e88 and e86 but it should work for others) (This should be applied if you don't use DCS in your area.) ---8<--- diff --git a/src/target/firmware/board/compal/rffe_dualband.c b/src/target/firmware/board/compal/rffe_dualband.c index f4b7361..5df1dfc 100644 --- a/src/target/firmware/board/compal/rffe_dualband.c +++ b/src/target/firmware/board/compal/rffe_dualband.c @@ -47,7 +47,8 @@ void rffe_mode(enum gsm_band band, int tx) /* Returns RF wiring */ uint32_t rffe_get_rx_ports(void) { - return (1 << PORT_LO) | (1 << PORT_DCS1800); + // return (1 << PORT_LO) | (1 << PORT_DCS1800); + return (1 << PORT_LO) | (1 << PORT_PCS1900); } uint32_t rffe_get_tx_ports(void) diff --git a/src/target/firmware/board/compal_e86/rffe_dualband_e86.c b/src/target/firmware/board/compal_e86/rffe_dualband_e86.c index 25bb099..10459d9 100644 --- a/src/target/firmware/board/compal_e86/rffe_dualband_e86.c +++ b/src/target/firmware/board/compal_e86/rffe_dualband_e86.c @@ -51,7 +51,8 @@ void rffe_mode(enum gsm_band band, int tx) /* Returns RF wiring */ uint32_t rffe_get_rx_ports(void) { - return (1 << PORT_LO) | (1 << PORT_DCS1800); + // return (1 << PORT_LO) | (1 << PORT_DCS1800); + return (1 << PORT_LO) | (1 << PORT_PCS1900); } uint32_t rffe_get_tx_ports(void) ---8<---

12 years, 7 months

Using 900/1800 C118 on 1900

by Akib Sayyed

Guys is wanted to know if there is any tweak that can allow me to use 900/1800 C118 phone on 1900 band. please let me know. -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243

12 years, 7 months

[PATCH] Fix wrong printing of end freq in powerscan

by Pavel Baturko

Hi All, This is small patch that fixes wrong printing of scanning frequencies due powerscan: <0003> gsm322.c:2794 Scanning power for all frequencies. <0003> gsm322.c:2855 Scanning frequencies. (0..0) .. <0003> gsm322.c:2855 Scanning frequencies. (512(DCS)..512(DCS)) .. <0003> gsm322.c:2855 Scanning frequencies. (955..955) with this fix: <0003> gsm322.c:2797 Scanning power for all frequencies. <0003> gsm322.c:2860 Scanning frequencies. (0..124) .. <0003> gsm322.c:2860 Scanning frequencies. (512(DCS)..885(DCS)) .. <0003> gsm322.c:2860 Scanning frequencies. (955..1023) Thanks, Pavel

12 years, 7 months

Programming SIM card RAND?

by Andrew Back

Hello, I'm trying to get some MS test equipment working and have programmed a SIM with pysim-prog.py, but the tester has a configuration field for RAND and I cannot see how to set this on the SIM. In fact this has confused me as I thought the network always supplied this... I have the IMSI, Ki, MCC and MNC set the same on the tester and SIM, but tests don't get very far and fail with "incorrect SRES". Any ideas? Regards, Andrew -- Andrew Back http://carrierdetect.com

12 years, 7 months

Presentations at upcoming CCC?

by Bhaskar11

Are any presentations planned on Osmocom-BB and A51 at the upcoming CCC? B.

12 years, 7 months

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baseband-devel November 2012