FreeCalypso > hg > freecalypso-tools
annotate rvinterf/doc/tfc139.usage @ 830:07105f244424
ringtools/examples: astureses.pwt and bugle.pwt reconstruction
attempts from TI's defunct mmiMelody_data.c
| author | Mychaela Falconia <falcon@freecalypso.org> | 
|---|---|
| date | Sun, 30 May 2021 23:47:16 +0000 | 
| parents | e7502631a0f9 | 
| children | 
| rev | line source | 
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| 0 
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changeset | 1 The tfc139 hack-utility (see ../../doc/Compal-unlock) is based on the | 
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changeset | 2 rvinterf/rvtdump skeleton, and it needs to be invoked as follows: | 
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changeset | 3 | 
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changeset | 4 tfc139 [options] /dev/ttyXXX | 
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changeset | 5 | 
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initial import from freecalypso-sw rev 1033:5ab737ac3ad7
 Mychaela Falconia <falcon@freecalypso.org> parents: diff
changeset | 6 In the well-tested use case of breaking into TFC139 phones with fw version | 
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changeset | 7 8.8.17, no options are normally needed, but the following options are supported: | 
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changeset | 8 | 
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changeset | 9 -a address | 
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changeset | 10 | 
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changeset | 11 This option changes the RAM address into which the "shellcode" is to be | 
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changeset | 12 written; the argument is always interpreted as hex. The default is | 
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changeset | 13 0x800000, as used by the mot931c.exe closed source tool on whose | 
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changeset | 14 reverse-engineering our hack-utility is based. | 
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changeset | 15 | 
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changeset | 16 -B baud | 
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changeset | 17 | 
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changeset | 18 This option changes the serial baud rate just like in rvinterf and | 
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changeset | 19 rvtdump, but the default is 57600 as needed for breaking into TFC139 | 
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changeset | 20 firmware. | 
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changeset | 21 | 
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changeset | 22 -l logfile | 
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changeset | 23 | 
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changeset | 24 Log activity in a file, just like rvinterf and rvtdump. | 
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changeset | 25 | 
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changeset | 26 -s address | 
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changeset | 27 | 
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changeset | 28 Just like mot931c.exe has been observed to do, we start our stack | 
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changeset | 29 smashing attempts at a certain address, and keep incrementing by 4 | 
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changeset | 30 until we either succeed or crash the fw in some other way that does not | 
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changeset | 31 help us. This option changes the starting address for these stack | 
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 Mychaela Falconia <falcon@freecalypso.org> parents: diff
changeset | 32 smashing attempts; the argument is always interpreted as hex. The | 
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changeset | 33 default is 0x837C54, as observed from the reverse engineering of | 
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changeset | 34 mot931c. | 
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changeset | 35 | 
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changeset | 36 -w number_in_seconds | 
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changeset | 37 | 
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changeset | 38 See rvinterf.usage; the option is the same for tfc139 as for rvinterf. | 
