FreeCalypso > hg > fc-magnetite
annotate src/g23m-gprs/llc/llc_txf.h @ 516:1ed9de6c90bd
src/g23m-gsm/sms/sms_for.c: bogus malloc removed
The new error handling code that was not present in TCS211 blob version
contains a malloc call that is bogus for 3 reasons:
1) The memory allocation in question is not needed in the first place;
2) libc malloc is used instead of one of the firmware's proper ways;
3) The memory allocation is made inside a function and then never freed,
i.e., a memory leak.
This bug was caught in gcc-built FreeCalypso fw projects (Citrine
and Selenite) because our gcc environment does not allow any use of
libc malloc (any reference to malloc produces a link failure),
but this code from TCS3.2 is wrong even for Magnetite: if this code
path is executed repeatedly over a long time, the many small allocations
made by this malloc call without a subsequent free will eventually
exhaust the malloc heap provided by the TMS470 environment, malloc will
start returning NULL, and the bogus code will treat it as an error.
Because the memory allocation in question is not needed at all,
the fix entails simply removing it.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 22 Jul 2018 06:04:49 +0000 |
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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | Project : |
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4 | Modul : |
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5 +----------------------------------------------------------------------------- |
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6 | Copyright 2002 Texas Instruments Berlin, AG |
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7 | All rights reserved. |
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8 | |
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9 | This file is confidential and a trade secret of Texas |
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10 | Instruments Berlin, AG |
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11 | The receipt of or possession of this file does not convey |
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12 | any rights to reproduce or disclose its contents or to |
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13 | manufacture, use, or sell anything it may describe, in |
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14 | whole, or in part, without the specific written consent of |
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15 | Texas Instruments Berlin, AG. |
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16 +----------------------------------------------------------------------------- |
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17 | Purpose : Definitions for llc_txf.c |
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18 +----------------------------------------------------------------------------- |
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19 */ |
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20 |
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21 |
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22 #ifndef LLC_TXF_H |
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23 #define LLC_TXF_H |
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24 |
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26 EXTERN void llc_tx_init (void); |
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27 |
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28 EXTERN void tx_clear_buffer (void); |
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29 |
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30 EXTERN void tx_send_cipher_req |
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31 ( |
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32 #ifdef LL_DESC |
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33 T_CCI_CIPHER_DESC_REQ *cci_cipher_desc_req, |
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34 #else |
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35 T_CCI_CIPHER_REQ *cci_cipher_desc_req, |
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36 #endif |
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37 T_PDU_TYPE frame_type, |
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38 UBYTE protected_mode, |
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39 T_FRAME_NUM ns, |
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40 UBYTE cipher, |
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41 ULONG oc |
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42 ); |
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43 |
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44 GLOBAL void tx_reserve_buffer |
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45 ( |
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46 #ifdef LL_DESC |
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47 T_LL_UNITDESC_REQ *ll_unitdesc_req, |
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48 #else |
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49 T_LL_UNITDATA_REQ *ll_unitdesc_req, |
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50 #endif |
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51 T_PRIM_TYPE prim_type, |
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52 UBYTE cause, |
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53 T_SERVICE rx_service, |
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54 ULONG *reservation_no, |
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55 BOOL *buffer_available |
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56 ); |
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57 |
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58 |
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59 GLOBAL void tx_store_buffer (T_GRLC_DATA_REQ *grlc_data_req); |
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60 |
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61 EXTERN void tx_get_next_frame (T_GRLC_DATA_REQ **grlc_data_req, |
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62 T_GRLC_UNITDATA_REQ **grlc_unitdata_req, |
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63 T_PRIM_TYPE *prim_type, |
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64 T_SERVICE *rx_service, |
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65 UBYTE *sapi); |
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66 |
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67 EXTERN void tx_get_first_data_frame (T_TX_QUEUE **elem); |
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69 EXTERN void tx_remove_data_frames (T_SERVICE service, T_SAPI sapi); |
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72 #endif /* !LLC_TXS_H */ |
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73 |