FreeCalypso > hg > fc-magnetite
view src/aci2/aci/psa_tcpipp.c @ 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> |
---|---|
date | Sun, 22 Jul 2018 06:04:49 +0000 |
parents | 93999a60b835 |
children |
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/* +----------------------------------------------------------------------------- | Project : GSM-PS (6147) | Modul : PSA_TCPP +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Purpose : This module defines the processing functions for the | primitives sent to the protocol stack adapter by the TCPIP | module. +----------------------------------------------------------------------------- */ #ifndef PSA_TCPP_C #define PSA_TCPP_C #endif /* of PSA_TCPP_C */ #include "aci_all.h" /*==== INCLUDES ===================================================*/ #include "aci_cmh.h" #include "ati_cmd.h" #include "aci_cmd.h" #include "dti.h" /* functionality of the dti library */ #include "dti_conn_mng.h" #include "dti_cntrl_mng.h" #include "aci_fd.h" #include "aci.h" #include "psa.h" #include "psa_l2r.h" #include "cmh.h" #include "cmh_ra.h" #include "cmh_l2r.h" #include "psa_tcpip.h" #include "psa_cc.h" #include "wap_aci.h" #include "psa_sat.h" #include "dcm_utils.h" #include "dcm_state.h" #include "dcm_env.h" #include "dcm_f.h" /*==== CONSTANTS ==================================================*/ /*==== TYPES ======================================================*/ /*==== EXPORT =====================================================*/ /*==== VARIABLES ==================================================*/ /*==== FUNCTIONS ==================================================*/ /* +-------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : PSA_TCP | | ROUTINE : psa_tcpip_dti_cnf | +-------------------------------------------------------------------+ PURPOSE : processes the TCPIP_DTI_CNF primitive sent by TCPIP. */ GLOBAL const void psa_tcpip_dti_cnf(T_TCPIP_DTI_CNF *tcpip_dti_cnf) { TRACE_FUNCTION ("psa_tcpip_dti_cnf()"); switch( tcpip_dti_cnf->dti_conn ) { case(TCPIP_CONNECT_DTI): dti_cntrl_entity_connected( tcpip_dti_cnf->link_id, DTI_ENTITY_TCPIP, DTI_OK ); break; case(TCPIP_DISCONNECT_DTI): dti_cntrl_entity_disconnected( tcpip_dti_cnf->link_id, DTI_ENTITY_TCPIP ); break; } PFREE(tcpip_dti_cnf); } /* +-------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : PSA_TCP | | ROUTINE : psa_tcpip_ifconfig_cnf | +-------------------------------------------------------------------+ PURPOSE : processes the TCPIP_CONFIG_CNF primitive sent by TCPIP. */ GLOBAL const void psa_tcpip_ifconfig_cnf(T_TCPIP_IFCONFIG_CNF *tcpip_ifconfig_cnf) { TRACE_FUNCTION ("psa_tcpip_ifconfig_cnf()"); if(tcpip_ifconfig_cnf->result == TCPIP_RESULT_OK) { if (wap_state EQ TCPIP_Configuration) { wap_state = TCPIP_Configurated; cmhTCPIP_Configurated(); } else if (wap_state EQ TCPIP_Deconfiguration) { wap_state = TCPIP_Deconfigurated; if(tcpipShrdPrm.connection_type EQ TCPIP_CONNECTION_TYPE_CSD_WAP) { wap_state = TCPIP_Deactivation; psaTCPIP_config_dispatch(); } else cmhTCPIP_Deconfigurated(); } } else { TRACE_EVENT("unexpected TCPIP_IFCONFIG_CNF primitive received"); } PFREE(tcpip_ifconfig_cnf); } GLOBAL const void psa_tcpip_shutdown_cnf(T_TCPIP_SHUTDOWN_CNF *tcpip_shutdown_cnf) { TRACE_FUNCTION ("psa_tcpip_shutdown_cnf()"); if(tcpip_shutdown_cnf->result != TCPIP_RESULT_OK) { T_DCM_STATUS_IND_MSG msg; msg.hdr.msg_id = DCM_NEXT_CMD_STOP_MSG; dcm_send_message(msg, DCM_SUB_WAIT_CGDEACT_CNF); msg.hdr.msg_id = DCM_NEXT_CMD_STOP_MSG; dcm_send_message(msg, DCM_SUB_WAIT_SATH_CNF); } else { wap_state = TCPIP_Deactivated; psaTCPIP_config_dispatch(); } reset_gpf_tcpip_call(); PFREE(tcpip_shutdown_cnf); } GLOBAL const void psa_tcpip_initialize_cnf(T_TCPIP_INITIALIZE_CNF *tcpip_initialize_cnf) { TRACE_FUNCTION ("psa_tcpip_initialize_cnf()"); if(tcpip_initialize_cnf->result != TCPIP_RESULT_OK) { T_DCM_STATUS_IND_MSG msg; msg.hdr.msg_id = DCM_NEXT_CMD_STOP_MSG; dcm_send_message(msg, DCM_SUB_WAIT_CGACT_CNF); msg.hdr.msg_id = DCM_NEXT_CMD_STOP_MSG; dcm_send_message(msg, DCM_SUB_WAIT_SATDN_CNF); } else { wap_state = TCPIP_Activation; psaTCPIP_config_dispatch(); } PFREE(tcpip_initialize_cnf); }