[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetNextTok/Cellular_ATGetNextTok_harness.c

@@ -0,0 +1,62 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATGetNextTok( char ** ppString,
+                                         char ** ppTokOutput );
+
+/****************************************************************
+* The proof of Cellular_ATGetNextTok
+****************************************************************/
+void harness()
+{
+    const char ** ppString;
+    const char ** ppTokOutput;
+
+    ppString = ( char * ) safeMalloc( sizeof( *ppString ) );
+    ppTokOutput = ( char * ) safeMalloc( sizeof( *ppTokOutput ) );
+    Cellular_ATGetNextTok( ppString, ppTokOutput );
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetNextTok/Makefile

@@ -0,0 +1,39 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATGetNextTok_harness
+PROOF_UID = Cellular_ATGetNextTok
+
+DEFINES +=
+INCLUDES +=
+
+# Remove this function because it will has its own harness.
+REMOVE_FUNCTION_BODY += Cellular_ATGetSpecificNextTok
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetNextTok/README.md

@@ -0,0 +1,10 @@
+Cellular_ATGetNextTok proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATGetNextTok.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetNextTok/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetNextTok/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATGetNextTok",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetSpecificNextTok/Cellular_ATGetSpecificNextTok_harness.c

@@ -0,0 +1,81 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATGetSpecificNextTok( char ** ppString,
+                                                 const char * pDelimiter,
+                                                 char ** ppTokOutput );
+
+/****************************************************************
+* The proof of Cellular_ATGetSpecificNextTok
+****************************************************************/
+void harness()
+{
+    const char ** ppString;
+    const char ** ppTokOutput;
+    const char * pDelimiter;
+    uint16_t stringLength;
+    uint16_t delLength;
+
+    __CPROVER_assume( stringLength > 0 && stringLength < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( delLength > 0 && delLength < CBMC_MAX_BUFSIZE );
+
+    char * pString = ( char * ) safeMalloc( stringLength );
+
+    ppString = nondet_bool() ? NULL : &pString;
+    ppTokOutput = ( char * ) safeMalloc( sizeof( *ppTokOutput ) );
+    pDelimiter = ( char * ) safeMalloc( delLength );
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLength ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLength - 1 ] = '\0';
+        }
+
+        Cellular_ATGetSpecificNextTok( ppString, pDelimiter, ppTokOutput );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetSpecificNextTok/Makefile

@@ -0,0 +1,47 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATGetSpecificNextTok_harness
+PROOF_UID = Cellular_ATGetSpecificNextTok
+
+DEFINES +=
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=128
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATGetSpecificNextTok.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strlen.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/strtok.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetSpecificNextTok/README.md

@@ -0,0 +1,10 @@
+Cellular_ATGetSpecificNextTok proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATGetSpecificNextTok.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetSpecificNextTok/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATGetSpecificNextTok/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATGetSpecificNextTok",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATHexStrToHex/Cellular_ATHexStrToHex_harness.c

@@ -0,0 +1,76 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATHexStrToHex( const char * pString,
+                                          uint8_t * pHexData,
+                                          uint16_t hexDataLen );
+
+/****************************************************************
+* The proof of Cellular_ATHexStrToHex
+****************************************************************/
+void harness()
+{
+    uint16_t hexDataLen;
+    uint16_t stringLen;
+
+    __CPROVER_assume( stringLen < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLen > 0 );
+    char * pString = ( char * ) safeMalloc( stringLen );
+    uint8_t * pHexData = ( uint8_t * ) safeMalloc( hexDataLen );
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLen ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLen - 1 ] = '\0';
+        }
+
+        Cellular_ATHexStrToHex( pString,
+                                pHexData,
+                                hexDataLen );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATHexStrToHex/Makefile

@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATHexStrToHex_harness
+PROOF_UID = Cellular_ATHexStrToHex
+
+DEFINES +=
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=128
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATHexStrToHex.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strlen.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATHexStrToHex/README.md

@@ -0,0 +1,10 @@
+Cellular_ATHexStrToHex proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATHexStrToHex.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATHexStrToHex/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATHexStrToHex/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATHexStrToHex",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsPrefixPresent/Cellular_ATIsPrefixPresent_harness.c

@@ -0,0 +1,78 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATIsPrefixPresent( const char * pString,
+                                              bool * pResult );
+
+/****************************************************************
+* The proof of Cellular_ATIsPrefixPresent
+****************************************************************/
+void harness()
+{
+    uint16_t stringLen;
+
+    __CPROVER_assume( stringLen < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLen > 0 );
+    char * pString = ( char * ) safeMalloc( stringLen );
+    bool * pResult = ( uint8_t * ) safeMalloc( sizeof( bool * ) );
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLen ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLen - 1 ] = '\0';
+
+            if( nondet_bool() && ( stringLen > 2 ) )
+            {
+                pString[ 0 ] = '+';
+            }
+        }
+
+        Cellular_ATIsPrefixPresent( pString,
+                                    pResult );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsPrefixPresent/Makefile

@@ -0,0 +1,48 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATIsPrefixPresent_harness
+PROOF_UID = Cellular_ATIsPrefixPresent
+
+DEFINES += -D__NO_CTYPE
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=32
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATIsPrefixPresent.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strlen.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strchr.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strnlen.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/strchr.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/strnlen.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsPrefixPresent/README.md

@@ -0,0 +1,10 @@
+Cellular_ATIsPrefixPresent proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATIsPrefixPresent.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsPrefixPresent/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsPrefixPresent/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATIsPrefixPresent",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsStrDigit/Cellular_ATIsStrDigit_harness.c

@@ -0,0 +1,73 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATIsStrDigit( const char * pString,
+                                         bool * pResult );
+
+/****************************************************************
+* The proof of Cellular_ATIsStrDigit
+****************************************************************/
+void harness()
+{
+    uint16_t stringLen;
+
+    __CPROVER_assume( stringLen < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLen > 0 );
+    char * pString = ( char * ) safeMalloc( stringLen );
+    bool * pResult = ( uint8_t * ) safeMalloc( sizeof( bool * ) );
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLen ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLen - 1 ] = '\0';
+        }
+
+        Cellular_ATIsStrDigit( pString,
+                               pResult );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsStrDigit/Makefile

@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATIsStrDigit_harness
+PROOF_UID = Cellular_ATIsStrDigit
+
+DEFINES += -D__NO_CTYPE
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=128
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATIsStrDigit.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strlen.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsStrDigit/README.md

@@ -0,0 +1,10 @@
+Cellular_ATIsStrDigit proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATIsStrDigit.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsStrDigit/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATIsStrDigit/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATIsStrDigit",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllDoubleQuote/Cellular_ATRemoveAllDoubleQuote_harness.c

@@ -0,0 +1,70 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATRemoveAllDoubleQuote( char * pString );
+
+/****************************************************************
+* The proof of Cellular_ATRemoveAllDoubleQuote
+****************************************************************/
+void harness()
+{
+    uint16_t stringLength;
+
+    __CPROVER_assume( stringLength < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLength > 0 );
+    char * pString = ( char * ) safeMalloc( stringLength );
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLength ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLength - 1 ] = '\0';
+        }
+
+        Cellular_ATRemoveAllDoubleQuote( pString );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllDoubleQuote/Makefile

@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATRemoveAllDoubleQuote_harness
+PROOF_UID = Cellular_ATRemoveAllDoubleQuote
+
+DEFINES +=
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=32
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATRemoveAllDoubleQuote.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strlen.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllDoubleQuote/README.md

@@ -0,0 +1,10 @@
+Cellular_ATRemoveAllDoubleQuote proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATRemoveAllDoubleQuote.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllDoubleQuote/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllDoubleQuote/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATRemoveAllDoubleQuote",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllWhiteSpaces/Cellular_ATRemoveAllWhiteSpaces_harness.c

@@ -0,0 +1,70 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATRemoveAllWhiteSpaces( char * pString );
+
+/****************************************************************
+* The proof of Cellular_ATRemoveAllWhiteSpaces
+****************************************************************/
+void harness()
+{
+    uint16_t stringLength;
+
+    __CPROVER_assume( stringLength < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLength > 0 );
+    char * pString = ( char * ) safeMalloc( stringLength );
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLength ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLength - 1 ] = '\0';
+        }
+
+        Cellular_ATRemoveAllWhiteSpaces( pString );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllWhiteSpaces/Makefile

@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATRemoveAllWhiteSpaces_harness
+PROOF_UID = Cellular_ATRemoveAllWhiteSpaces
+
+DEFINES += -D__NO_CTYPE
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=32
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATRemoveAllWhiteSpaces.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strlen.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllWhiteSpaces/README.md

@@ -0,0 +1,10 @@
+Cellular_ATRemoveAllWhiteSpaces proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATRemoveAllWhiteSpaces.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllWhiteSpaces/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveAllWhiteSpaces/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATRemoveAllWhiteSpaces",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveLeadingWhiteSpaces/Cellular_ATRemoveLeadingWhiteSpaces_harness.c

@@ -0,0 +1,71 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATRemoveLeadingWhiteSpaces( char ** ppString );
+
+/****************************************************************
+* The proof of Cellular_ATRemoveLeadingWhiteSpaces
+****************************************************************/
+void harness()
+{
+    uint16_t stringLength;
+
+    __CPROVER_assume( stringLength < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLength > 0 );
+    char * pString = ( char * ) safeMalloc( stringLength );
+    char ** ppString = nondet_bool() ? NULL : &pString;
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLength ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLength - 1 ] = '\0';
+        }
+
+        Cellular_ATRemoveLeadingWhiteSpaces( ppString );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveLeadingWhiteSpaces/Makefile

@@ -0,0 +1,45 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATRemoveLeadingWhiteSpaces_harness
+PROOF_UID = Cellular_ATRemoveLeadingWhiteSpaces
+
+DEFINES += -D__NO_CTYPE
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=128
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATRemoveLeadingWhiteSpaces.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveLeadingWhiteSpaces/README.md

@@ -0,0 +1,10 @@
+Cellular_ATRemoveLeadingWhiteSpaces proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATRemoveLeadingWhiteSpaces.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveLeadingWhiteSpaces/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveLeadingWhiteSpaces/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATRemoveLeadingWhiteSpaces",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveOutermostDoubleQuote/Cellular_ATRemoveOutermostDoubleQuote_harness.c

@@ -0,0 +1,71 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATRemoveOutermostDoubleQuote( char ** ppString );
+
+/****************************************************************
+* The proof of Cellular_ATRemoveOutermostDoubleQuote
+****************************************************************/
+void harness()
+{
+    uint16_t stringLength;
+
+    __CPROVER_assume( stringLength < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLength > 0 );
+    char * pString = ( char * ) safeMalloc( stringLength );
+    char ** ppString = nondet_bool() ? NULL : &pString;
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLength ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLength - 1 ] = '\0';
+        }
+
+        Cellular_ATRemoveOutermostDoubleQuote( ppString );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveOutermostDoubleQuote/Makefile

@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATRemoveOutermostDoubleQuote_harness
+PROOF_UID = Cellular_ATRemoveOutermostDoubleQuote
+
+DEFINES +=
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=128
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATRemoveOutermostDoubleQuote.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strlen.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveOutermostDoubleQuote/README.md

@@ -0,0 +1,10 @@
+Cellular_ATRemoveOutermostDoubleQuote proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATRemoveOutermostDoubleQuote.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveOutermostDoubleQuote/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveOutermostDoubleQuote/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATRemoveOutermostDoubleQuote",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemovePrefix/Cellular_ATRemovePrefix_harness.c

@@ -0,0 +1,70 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATRemovePrefix( char ** ppString );
+
+/****************************************************************
+* The proof of Cellular_ATRemovePrefix
+****************************************************************/
+void harness()
+{
+    uint32_t stringLength;
+
+    __CPROVER_assume( stringLength < CELLULAR_AT_MAX_STRING_SIZE + 1 );
+    char * pString = ( char * ) safeMalloc( stringLength );
+    char ** ppString = nondet_bool() ? NULL : &pString;
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLength ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLength - 1 ] = '\0';
+        }
+
+        Cellular_ATRemovePrefix( ppString );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemovePrefix/Makefile

@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATRemovePrefix_harness
+PROOF_UID = Cellular_ATRemovePrefix
+
+DEFINES +=
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=256
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += strchr.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/strchr.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemovePrefix/README.md

@@ -0,0 +1,10 @@
+Cellular_ATRemovePrefix proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATRemovePrefix.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemovePrefix/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemovePrefix/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATRemovePrefix",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveTrailingWhiteSpaces/Cellular_ATRemoveTrailingWhiteSpaces_harness.c

@@ -0,0 +1,70 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATRemoveTrailingWhiteSpaces( char * pString );
+
+/****************************************************************
+* The proof of Cellular_ATRemoveTrailingWhiteSpaces
+****************************************************************/
+void harness()
+{
+    uint16_t stringLength;
+
+    __CPROVER_assume( stringLength < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLength > 0 );
+    char * pString = ( char * ) safeMalloc( stringLength );
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLength ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLength - 1 ] = '\0';
+        }
+
+        Cellular_ATRemoveTrailingWhiteSpaces( pString );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveTrailingWhiteSpaces/Makefile

@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATRemoveTrailingWhiteSpaces_harness
+PROOF_UID = Cellular_ATRemoveTrailingWhiteSpaces
+
+DEFINES += -D__NO_CTYPE
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=128
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATRemoveTrailingWhiteSpaces.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strlen.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveTrailingWhiteSpaces/README.md

@@ -0,0 +1,10 @@
+Cellular_ATRemoveTrailingWhiteSpaces proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATRemoveTrailingWhiteSpaces.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveTrailingWhiteSpaces/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATRemoveTrailingWhiteSpaces/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATRemoveTrailingWhiteSpaces",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrDup/Cellular_ATStrDup_harness.c

@@ -0,0 +1,71 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATStrDup( char ** ppDst,
+                                     const char * pSrc );
+
+/****************************************************************
+* The proof of Cellular_ATStrDup
+****************************************************************/
+void harness()
+{
+    char * pDst;
+    uint16_t stringLength;
+
+    __CPROVER_assume( stringLength > 0 && stringLength < CBMC_MAX_BUFSIZE );
+    char * pString = ( char * ) safeMalloc( stringLength );
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLength ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLength - 1 ] = '\0';
+        }
+
+        Cellular_ATStrDup( &pDst, pString );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrDup/Makefile

@@ -0,0 +1,47 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATStrDup_harness
+PROOF_UID = Cellular_ATStrDup
+
+DEFINES +=
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=128
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATStrDup.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += strlen.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/strtok.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrDup/README.md

@@ -0,0 +1,10 @@
+Cellular_ATStrDup proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATStrDup.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrDup/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrDup/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATStrDup",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrStartWith/Cellular_ATStrStartWith_harness.c

@@ -0,0 +1,84 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATStrStartWith( const char * pString,
+                                           const char * pPrefix,
+                                           bool * pResult );
+
+/****************************************************************
+* The proof of Cellular_ATStrStartWith
+****************************************************************/
+void harness()
+{
+    uint16_t stringLen;
+    uint16_t prefixLen;
+
+    __CPROVER_assume( stringLen < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLen > 0 );
+    __CPROVER_assume( prefixLen < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( prefixLen > 0 );
+    char * pString = ( char * ) safeMalloc( stringLen );
+    char * pPrefix = ( char * ) safeMalloc( prefixLen );
+    bool * pResult = ( uint8_t * ) safeMalloc( sizeof( bool * ) );
+
+    if( ( pString == NULL ) || ( ( pString != NULL ) && ensure_memory_is_valid( pString, stringLen ) ) )
+    {
+        if( pString != NULL )
+        {
+            pString[ stringLen - 1 ] = '\0';
+        }
+
+        if( pPrefix != NULL )
+        {
+            pPrefix[ prefixLen - 1 ] = '\0';
+        }
+
+        Cellular_ATStrStartWith( pString,
+                                 pPrefix,
+                                 pResult );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrStartWith/Makefile

@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATStrStartWith_harness
+PROOF_UID = Cellular_ATStrStartWith
+
+DEFINES +=
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=256
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += Cellular_ATStrStartWith.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/strchr.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrStartWith/README.md

@@ -0,0 +1,10 @@
+Cellular_ATStrStartWith proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATStrStartWith.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrStartWith/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrStartWith/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATStrStartWith",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrtoi/Cellular_ATStrtoi_harness.c

@@ -0,0 +1,76 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATStrtoi( const char * pStr,
+                                     int32_t base,
+                                     long * pResult );
+
+/****************************************************************
+* The proof of Cellular_ATcheckErrorCode
+****************************************************************/
+void harness()
+{
+    uint16_t stringLen;
+    int32_t base;
+
+    __CPROVER_assume( stringLen < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLen > 0 );
+    char * pInputBuf = ( char * ) safeMalloc( stringLen );
+    long * pResult = ( long * ) safeMalloc( sizeof( long * ) );
+
+    if( ( pInputBuf == NULL ) || ( ( pInputBuf != NULL ) && ensure_memory_is_valid( pInputBuf, stringLen ) ) )
+    {
+        if( pInputBuf != NULL )
+        {
+            pInputBuf[ stringLen - 1 ] = '\0';
+        }
+
+        Cellular_ATStrtoi( pInputBuf,
+                           base,
+                           pResult );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrtoi/Makefile

@@ -0,0 +1,45 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATStrtoi_harness
+PROOF_UID = Cellular_ATStrtoi
+
+DEFINES +=
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=32
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE)
+
+UNWINDSET += strtol.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+PROJECT_SOURCES += $(SRCDIR)/test/cbmc/stubs/strtol.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrtoi/README.md

@@ -0,0 +1,10 @@
+Cellular_ATStrtoi proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATStrtoi.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrtoi/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATStrtoi/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATStrtoi",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATcheckErrorCode/Cellular_ATcheckErrorCode_harness.c

@@ -0,0 +1,80 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular default config includes. */
+#include "cellular_config.h"
+#include "cellular_config_defaults.h"
+
+/* Cellular APIs includes. */
+#include "cellular_platform.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && ( length > 0 ) && __CPROVER_w_ok( ( px ), length ) && __CPROVER_r_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularATError_t Cellular_ATcheckErrorCode( const char * pInputBuf,
+                                             const char * const * const ppKeyList,
+                                             size_t keyListLen,
+                                             bool * pResult );
+
+/****************************************************************
+* The proof of Cellular_ATcheckErrorCode
+****************************************************************/
+void harness()
+{
+    uint16_t stringLen;
+    uint16_t keyListLen;
+
+    __CPROVER_assume( stringLen < CBMC_MAX_BUFSIZE );
+    __CPROVER_assume( stringLen > 0 );
+    __CPROVER_assume( keyListLen < KEY_LIST_SIZE );
+    char * pInputBuf = ( char * ) safeMalloc( stringLen );
+    bool * pResult = ( uint8_t * ) safeMalloc( sizeof( bool * ) );
+    char ** ppKeyList = ( char ** ) safeMalloc( sizeof( char ** ) * keyListLen );
+
+    if( ( pInputBuf == NULL ) || ( ( pInputBuf != NULL ) && ensure_memory_is_valid( pInputBuf, stringLen ) ) )
+    {
+        if( pInputBuf != NULL )
+        {
+            pInputBuf[ stringLen - 1 ] = '\0';
+        }
+
+        Cellular_ATcheckErrorCode( pInputBuf,
+                                   ppKeyList,
+                                   keyListLen,
+                                   pResult );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATcheckErrorCode/Makefile

@@ -0,0 +1,50 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_ATcheckErrorCode_harness
+PROOF_UID = Cellular_ATcheckErrorCode
+
+DEFINES +=
+INCLUDES +=
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=256
+
+KEY_LIST_SIZE=16
+
+DEFINES += -DCBMC_MAX_BUFSIZE=$(CBMC_MAX_BUFSIZE) -DKEY_LIST_SIZE=$(KEY_LIST_SIZE)
+
+UNWINDSET += Cellular_ATcheckErrorCode.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += memchr.0:$(CBMC_MAX_BUFSIZE)
+
+# This API has its own CBMC test case.
+REMOVE_FUNCTION_BODY += Cellular_ATStrStartWith
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/strchr.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/memchr.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_at_core.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATcheckErrorCode/README.md

@@ -0,0 +1,10 @@
+Cellular_ATcheckErrorCode proof
+==============
+
+This directory contains a memory safety proof for Cellular_ATcheckErrorCode.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATcheckErrorCode/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_ATcheckErrorCode/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_ATcheckErrorCode",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonATCommandRaw/Cellular_CommonATCommandRaw_harness.c

@@ -0,0 +1,126 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular APIs includes. */
+#include "cellular_config_defaults.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && __CPROVER_w_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+CellularAtParseTokenMap_t CellularUrcHandlerTable[] =
+{
+    { "CEREG",             NULL },
+    { "CGREG",             NULL },
+    { "CREG",              NULL },
+    { "NORMAL POWER DOWN", NULL },
+    { "PSM POWER DOWN",    NULL },
+    { "QIND",              NULL },
+    { "QIOPEN",            NULL },
+    { "QIURC",             NULL },
+    { "QSIMSTAT",          NULL },
+    { "RDY",               NULL }
+};
+
+const char * CellularSrcTokenErrorTable[] =
+{ "ERROR", "BUSY", "NO CARRIER", "NO ANSWER", "NO DIALTONE", "ABORTED", "+CMS ERROR", "+CME ERROR", "SEND FAIL" };
+
+const char * CellularSrcTokenSuccessTable[] =
+{ "OK", "CONNECT", "SEND OK", ">" };
+
+const char * CellularUrcTokenWoPrefixTable[] =
+{ "NORMAL POWER DOWN", "PSM POWER DOWN", "RDY" };
+
+const char * CellularSrcExtraTokenSuccessTable[] =
+{ "EXTRA_TOKEN_1", "EXTRA_TOKEN_2", "EXTRA_TOKEN_3" };
+
+static CellularTokenTable_t tokenTable =
+{
+    .pCellularUrcHandlerTable              = CellularUrcHandlerTable,
+    .cellularPrefixToParserMapSize         = CELLULAR_URC_HANDLER_TABLE_SIZE,
+    .pCellularSrcTokenErrorTable           = CellularSrcTokenErrorTable,
+    .cellularSrcTokenErrorTableSize        = CELLULAR_SRC_TOKEN_ERROR_TABLE_SIZE,
+    .pCellularSrcTokenSuccessTable         = CellularSrcTokenSuccessTable,
+    .cellularSrcTokenSuccessTableSize      = CELLULAR_SRC_TOKEN_SUCCESS_TABLE_SIZE,
+    .pCellularUrcTokenWoPrefixTable        = CellularUrcTokenWoPrefixTable,
+    .cellularUrcTokenWoPrefixTableSize     = CELLULAR_URC_TOKEN_WO_PREFIX_TABLE_SIZE,
+    .pCellularSrcExtraTokenSuccessTable    = CellularSrcExtraTokenSuccessTable,
+    .cellularSrcExtraTokenSuccessTableSize = CELLULAR_SRC_EXTRA_TOKEN_SUCCESS_TABLE_SIZE
+};
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularError_t Cellular_CommonATCommandRaw( CellularHandle_t cellularHandle,
+                                             const char * pATCommandPrefix,
+                                             const char * pATCommandPayload,
+                                             CellularATCommandType_t atCommandType,
+                                             CellularATCommandResponseReceivedCallback_t responseReceivedCallback,
+                                             void * pData,
+                                             uint16_t dataLen );
+
+/****************************************************************
+* The proof of Cellular_CommonATCommandRaw
+****************************************************************/
+void harness()
+{
+    CellularHandle_t pHandle = NULL;
+    char * pATCommandPrefix;
+    char * pATCommandPayload;
+    char * pData;
+    uint16_t lDataLen;
+    uint32_t lATCommandPrefixLen;
+    uint32_t lATCommandPayload;
+    CellularATCommandType_t atCommandType;
+
+    pATCommandPrefix = safeMalloc( lATCommandPrefixLen );
+    pATCommandPayload = safeMalloc( lATCommandPayload );
+    pData = safeMalloc( lDataLen );
+
+    /****************************************************************
+    * Initialize the member of Cellular_CommonInit.
+    ****************************************************************/
+    Cellular_CommonInit( nondet_bool() ? NULL : &pHandle, &CellularCommInterface, &tokenTable );
+
+    if( ( pHandle == NULL ) ||
+        ( ( pHandle != NULL ) && ensure_memory_is_valid( pHandle, sizeof( CellularContext_t ) ) ) )
+    {
+        Cellular_CommonATCommandRaw( pHandle,
+                                     pATCommandPrefix,
+                                     pATCommandPayload,
+                                     atCommandType,
+                                     NULL,
+                                     pData,
+                                     lDataLen );
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonATCommandRaw/Makefile

@@ -0,0 +1,38 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_CommonATCommandRaw_harness
+PROOF_UID = Cellular_CommonATCommandRaw
+
+DEFINES +=
+INCLUDES +=
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources//cellular_platform.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources//cellular_modules.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common_api.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonATCommandRaw/README.md

@@ -0,0 +1,10 @@
+Cellular_CommonATCommandRaw proof
+==============
+
+This directory contains a memory safety proof for Cellular_CommonATCommandRaw.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonATCommandRaw/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonATCommandRaw/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_CommonATCommandRaw",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCleanup/Cellular_CommonCleanup_harness.c

@@ -0,0 +1,104 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular APIs includes. */
+#include "cellular_config_defaults.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && __CPROVER_w_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+CellularAtParseTokenMap_t CellularUrcHandlerTable[] =
+{
+    { "CEREG",             NULL },
+    { "CGREG",             NULL },
+    { "CREG",              NULL },
+    { "NORMAL POWER DOWN", NULL },
+    { "PSM POWER DOWN",    NULL },
+    { "QIND",              NULL },
+    { "QIOPEN",            NULL },
+    { "QIURC",             NULL },
+    { "QSIMSTAT",          NULL },
+    { "RDY",               NULL }
+};
+
+const char * CellularSrcTokenErrorTable[] =
+{ "ERROR", "BUSY", "NO CARRIER", "NO ANSWER", "NO DIALTONE", "ABORTED", "+CMS ERROR", "+CME ERROR", "SEND FAIL" };
+
+const char * CellularSrcTokenSuccessTable[] =
+{ "OK", "CONNECT", "SEND OK", ">" };
+
+const char * CellularUrcTokenWoPrefixTable[] =
+{ "NORMAL POWER DOWN", "PSM POWER DOWN", "RDY" };
+
+const char * CellularSrcExtraTokenSuccessTable[] =
+{ "EXTRA_TOKEN_1", "EXTRA_TOKEN_2", "EXTRA_TOKEN_3" };
+
+static CellularTokenTable_t tokenTable =
+{
+    .pCellularUrcHandlerTable              = CellularUrcHandlerTable,
+    .cellularPrefixToParserMapSize         = CELLULAR_URC_HANDLER_TABLE_SIZE,
+    .pCellularSrcTokenErrorTable           = CellularSrcTokenErrorTable,
+    .cellularSrcTokenErrorTableSize        = CELLULAR_SRC_TOKEN_ERROR_TABLE_SIZE,
+    .pCellularSrcTokenSuccessTable         = CellularSrcTokenSuccessTable,
+    .cellularSrcTokenSuccessTableSize      = CELLULAR_SRC_TOKEN_SUCCESS_TABLE_SIZE,
+    .pCellularUrcTokenWoPrefixTable        = CellularUrcTokenWoPrefixTable,
+    .cellularUrcTokenWoPrefixTableSize     = CELLULAR_URC_TOKEN_WO_PREFIX_TABLE_SIZE,
+    .pCellularSrcExtraTokenSuccessTable    = CellularSrcExtraTokenSuccessTable,
+    .cellularSrcExtraTokenSuccessTableSize = CELLULAR_SRC_EXTRA_TOKEN_SUCCESS_TABLE_SIZE
+};
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularError_t Cellular_CommonCleanup( CellularHandle_t cellularHandle );
+
+/****************************************************************
+* The proof of Cellular_CommonCleanup
+****************************************************************/
+void harness()
+{
+    CellularHandle_t pHandle = NULL;
+
+    /****************************************************************
+    * Initialize the member of Cellular_CommonInit.
+    ****************************************************************/
+    Cellular_CommonInit( nondet_bool() ? NULL : &pHandle, &CellularCommInterface, &tokenTable );
+
+    if( ( pHandle != NULL ) && ensure_memory_is_valid( pHandle, sizeof( CellularContext_t ) ) )
+    {
+        allocateSocket( ( void * ) pHandle );
+    }
+
+    Cellular_CommonCleanup( pHandle );
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCleanup/Makefile

@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_CommonCleanup_harness
+PROOF_UID = Cellular_CommonCleanup
+
+DEFINES +=
+INCLUDES +=
+
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=13
+
+UNWINDSET += allocateSocket.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += __CPROVER_file_local_cellular_common_c_libClose.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += __CPROVER_file_local_cellular_common_c__Cellular_FreeContext.0:$(CBMC_MAX_BUFSIZE)
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_platform.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_modules.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common_api.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCleanup/README.md

@@ -0,0 +1,10 @@
+Cellular_CommonCleanup proof
+==============
+
+This directory contains a memory safety proof for Cellular_CommonCleanup.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCleanup/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCleanup/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_CommonCleanup",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCreateSocket/Cellular_CommonCreateSocket_harness.c

@@ -0,0 +1,127 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular APIs includes. */
+#include "cellular_config_defaults.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && __CPROVER_w_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+CellularAtParseTokenMap_t CellularUrcHandlerTable[] =
+{
+    { "CEREG",             NULL },
+    { "CGREG",             NULL },
+    { "CREG",              NULL },
+    { "NORMAL POWER DOWN", NULL },
+    { "PSM POWER DOWN",    NULL },
+    { "QIND",              NULL },
+    { "QIOPEN",            NULL },
+    { "QIURC",             NULL },
+    { "QSIMSTAT",          NULL },
+    { "RDY",               NULL }
+};
+
+const char * CellularSrcTokenErrorTable[] =
+{ "ERROR", "BUSY", "NO CARRIER", "NO ANSWER", "NO DIALTONE", "ABORTED", "+CMS ERROR", "+CME ERROR", "SEND FAIL" };
+
+const char * CellularSrcTokenSuccessTable[] =
+{ "OK", "CONNECT", "SEND OK", ">" };
+
+const char * CellularUrcTokenWoPrefixTable[] =
+{ "NORMAL POWER DOWN", "PSM POWER DOWN", "RDY" };
+
+const char * CellularSrcExtraTokenSuccessTable[] =
+{ "EXTRA_TOKEN_1", "EXTRA_TOKEN_2", "EXTRA_TOKEN_3" };
+
+static CellularTokenTable_t tokenTable =
+{
+    .pCellularUrcHandlerTable              = CellularUrcHandlerTable,
+    .cellularPrefixToParserMapSize         = CELLULAR_URC_HANDLER_TABLE_SIZE,
+    .pCellularSrcTokenErrorTable           = CellularSrcTokenErrorTable,
+    .cellularSrcTokenErrorTableSize        = CELLULAR_SRC_TOKEN_ERROR_TABLE_SIZE,
+    .pCellularSrcTokenSuccessTable         = CellularSrcTokenSuccessTable,
+    .cellularSrcTokenSuccessTableSize      = CELLULAR_SRC_TOKEN_SUCCESS_TABLE_SIZE,
+    .pCellularUrcTokenWoPrefixTable        = CellularUrcTokenWoPrefixTable,
+    .cellularUrcTokenWoPrefixTableSize     = CELLULAR_URC_TOKEN_WO_PREFIX_TABLE_SIZE,
+    .pCellularSrcExtraTokenSuccessTable    = CellularSrcExtraTokenSuccessTable,
+    .cellularSrcExtraTokenSuccessTableSize = CELLULAR_SRC_EXTRA_TOKEN_SUCCESS_TABLE_SIZE
+};
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularError_t Cellular_CommonCreateSocket( CellularHandle_t cellularHandle,
+                                             uint8_t pdnContextId,
+                                             CellularSocketDomain_t socketDomain,
+                                             CellularSocketType_t socketType,
+                                             CellularSocketProtocol_t socketProtocol,
+                                             CellularSocketHandle_t * pSocketHandle );
+
+/****************************************************************
+* The proof of Cellular_CommonCreateSocket
+****************************************************************/
+void harness()
+{
+    CellularHandle_t pHandle = NULL;
+    uint8_t CellularSocketPdnContextId;
+    CellularSocketDomain_t cellularSocketDomain;
+    CellularSocketType_t cellularSocketType;
+    CellularSocketProtocol_t cellularSocketProtocol;
+    CellularSocketHandle_t * pTcpSocket = safeMalloc( sizeof( CellularSocketHandle_t * ) );
+    CellularError_t socketStatus = CELLULAR_INVALID_HANDLE;
+
+    /****************************************************************
+    * Initialize the member of Cellular_CommonInit.
+    ****************************************************************/
+    Cellular_CommonInit( nondet_bool() ? NULL : &pHandle, &CellularCommInterface, &tokenTable );
+
+    if( ( pHandle != NULL ) && ensure_memory_is_valid( pHandle, sizeof( CellularContext_t ) ) )
+    {
+        if( ( pTcpSocket == NULL ) ||
+            ( ( pTcpSocket != NULL ) && ensure_memory_is_valid( pTcpSocket, sizeof( CellularSocketHandle_t * ) ) ) )
+        {
+            for( CellularSocketPdnContextId = 0; CellularSocketPdnContextId < CELLULAR_NUM_SOCKET_MAX + 2U; CellularSocketPdnContextId++ )
+            {
+                /* Create a new TCP socket. */
+                socketStatus = Cellular_CommonCreateSocket( pHandle,
+                                                            CellularSocketPdnContextId,
+                                                            cellularSocketDomain,
+                                                            cellularSocketType,
+                                                            cellularSocketProtocol,
+                                                            pTcpSocket );
+            }
+        }
+    }
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCreateSocket/Makefile

@@ -0,0 +1,50 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_CommonCreateSocket_harness
+PROOF_UID = Cellular_CommonCreateSocket
+
+DEFINES +=
+INCLUDES +=
+
+REMOVE_FUNCTION_BODY += _Cellular_TranslatePktStatus
+REMOVE_FUNCTION_BODY += _Cellular_CheckLibraryStatus
+
+# This value was experimentally chosen to provide 100% coverage
+# without tripping unwinding assertions and without exhausting memory.
+CBMC_MAX_BUFSIZE=15
+CBMC_OBJECT_BITS=9
+
+UNWINDSET += __CPROVER_file_local_cellular_common_c__Cellular_FreeContext.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += _Cellular_CreateSocketData.0:$(CBMC_MAX_BUFSIZE)
+UNWINDSET += harness.0:$(CBMC_MAX_BUFSIZE)
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_platform.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_modules.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common_api.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCreateSocket/README.md

@@ -0,0 +1,10 @@
+Cellular_CommonCreateSocket proof
+==============
+
+This directory contains a memory safety proof for Cellular_CommonCreateSocket.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCreateSocket/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonCreateSocket/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_CommonCreateSocket",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonGetEidrxSettings/Cellular_CommonGetEidrxSettings_harness.c

@@ -0,0 +1,101 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular APIs includes. */
+#include "cellular_config_defaults.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && __CPROVER_w_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+CellularAtParseTokenMap_t CellularUrcHandlerTable[] =
+{
+    { "CEREG",             NULL },
+    { "CGREG",             NULL },
+    { "CREG",              NULL },
+    { "NORMAL POWER DOWN", NULL },
+    { "PSM POWER DOWN",    NULL },
+    { "QIND",              NULL },
+    { "QIOPEN",            NULL },
+    { "QIURC",             NULL },
+    { "QSIMSTAT",          NULL },
+    { "RDY",               NULL }
+};
+
+const char * CellularSrcTokenErrorTable[] =
+{ "ERROR", "BUSY", "NO CARRIER", "NO ANSWER", "NO DIALTONE", "ABORTED", "+CMS ERROR", "+CME ERROR", "SEND FAIL" };
+
+const char * CellularSrcTokenSuccessTable[] =
+{ "OK", "CONNECT", "SEND OK", ">" };
+
+const char * CellularUrcTokenWoPrefixTable[] =
+{ "NORMAL POWER DOWN", "PSM POWER DOWN", "RDY" };
+
+const char * CellularSrcExtraTokenSuccessTable[] =
+{ "EXTRA_TOKEN_1", "EXTRA_TOKEN_2", "EXTRA_TOKEN_3" };
+
+static CellularTokenTable_t tokenTable =
+{
+    .pCellularUrcHandlerTable              = CellularUrcHandlerTable,
+    .cellularPrefixToParserMapSize         = CELLULAR_URC_HANDLER_TABLE_SIZE,
+    .pCellularSrcTokenErrorTable           = CellularSrcTokenErrorTable,
+    .cellularSrcTokenErrorTableSize        = CELLULAR_SRC_TOKEN_ERROR_TABLE_SIZE,
+    .pCellularSrcTokenSuccessTable         = CellularSrcTokenSuccessTable,
+    .cellularSrcTokenSuccessTableSize      = CELLULAR_SRC_TOKEN_SUCCESS_TABLE_SIZE,
+    .pCellularUrcTokenWoPrefixTable        = CellularUrcTokenWoPrefixTable,
+    .cellularUrcTokenWoPrefixTableSize     = CELLULAR_URC_TOKEN_WO_PREFIX_TABLE_SIZE,
+    .pCellularSrcExtraTokenSuccessTable    = CellularSrcExtraTokenSuccessTable,
+    .cellularSrcExtraTokenSuccessTableSize = CELLULAR_SRC_EXTRA_TOKEN_SUCCESS_TABLE_SIZE
+};
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularError_t Cellular_CommonGetEidrxSettings( CellularHandle_t cellularHandle,
+                                                 CellularEidrxSettingsList_t * pEidrxSettingsList );
+
+/****************************************************************
+* The proof of Cellular_CommonGetEidrxSettings
+****************************************************************/
+void harness()
+{
+    CellularHandle_t pHandle = NULL;
+    CellularEidrxSettingsList_t * pEidrxSettingsList = ( CellularEidrxSettingsList_t * ) safeMalloc( sizeof( CellularEidrxSettingsList_t ) );
+
+    /****************************************************************
+    * Initialize the member of Cellular_CommonInit.
+    ****************************************************************/
+    Cellular_CommonInit( nondet_bool() ? NULL : &pHandle, &CellularCommInterface, &tokenTable );
+
+    Cellular_CommonGetEidrxSettings( pHandle, pEidrxSettingsList );
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonGetEidrxSettings/Makefile

@@ -0,0 +1,39 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_CommonGetEidrxSettings_harness
+PROOF_UID = Cellular_CommonGetEidrxSettings
+
+DEFINES +=
+INCLUDES +=
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_platform.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_modules.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common_api.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_3gpp_api.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonGetEidrxSettings/README.md

@@ -0,0 +1,10 @@
+Cellular_CommonGetEidrxSettings proof
+==============
+
+This directory contains a memory safety proof for Cellular_CommonGetEidrxSettings.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonGetEidrxSettings/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonGetEidrxSettings/cbmc-viewer.json

@@ -0,0 +1,7 @@
+{ "expected-missing-functions":
+  [
+
+  ],
+  "proof-name": "Cellular_CommonGetEidrxSettings",
+  "proof-root": "tools/cbmc/proofs"
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonGetIPAddress/Cellular_CommonGetIPAddress_harness.c

@@ -0,0 +1,108 @@
+/*
+ * FreeRTOS-Cellular-Interface v1.3.0
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ */
+
+/* Standard includes. */
+#include <stdint.h>
+
+/* Cellular APIs includes. */
+#include "cellular_config_defaults.h"
+#include "cellular_types.h"
+#include "cellular_common_internal.h"
+#include "cellular_common_api.h"
+
+#define ensure_memory_is_valid( px, length )    ( px != NULL ) && __CPROVER_w_ok( ( px ), length )
+
+/* Extern the com interface in comm_if_windows.c */
+extern CellularCommInterface_t CellularCommInterface;
+
+CellularAtParseTokenMap_t CellularUrcHandlerTable[] =
+{
+    { "CEREG",             NULL },
+    { "CGREG",             NULL },
+    { "CREG",              NULL },
+    { "NORMAL POWER DOWN", NULL },
+    { "PSM POWER DOWN",    NULL },
+    { "QIND",              NULL },
+    { "QIOPEN",            NULL },
+    { "QIURC",             NULL },
+    { "QSIMSTAT",          NULL },
+    { "RDY",               NULL }
+};
+
+const char * CellularSrcTokenErrorTable[] =
+{ "ERROR", "BUSY", "NO CARRIER", "NO ANSWER", "NO DIALTONE", "ABORTED", "+CMS ERROR", "+CME ERROR", "SEND FAIL" };
+
+const char * CellularSrcTokenSuccessTable[] =
+{ "OK", "CONNECT", "SEND OK", ">" };
+
+const char * CellularUrcTokenWoPrefixTable[] =
+{ "NORMAL POWER DOWN", "PSM POWER DOWN", "RDY" };
+
+const char * CellularSrcExtraTokenSuccessTable[] =
+{ "EXTRA_TOKEN_1", "EXTRA_TOKEN_2", "EXTRA_TOKEN_3" };
+
+static CellularTokenTable_t tokenTable =
+{
+    .pCellularUrcHandlerTable              = CellularUrcHandlerTable,
+    .cellularPrefixToParserMapSize         = CELLULAR_URC_HANDLER_TABLE_SIZE,
+    .pCellularSrcTokenErrorTable           = CellularSrcTokenErrorTable,
+    .cellularSrcTokenErrorTableSize        = CELLULAR_SRC_TOKEN_ERROR_TABLE_SIZE,
+    .pCellularSrcTokenSuccessTable         = CellularSrcTokenSuccessTable,
+    .cellularSrcTokenSuccessTableSize      = CELLULAR_SRC_TOKEN_SUCCESS_TABLE_SIZE,
+    .pCellularUrcTokenWoPrefixTable        = CellularUrcTokenWoPrefixTable,
+    .cellularUrcTokenWoPrefixTableSize     = CELLULAR_URC_TOKEN_WO_PREFIX_TABLE_SIZE,
+    .pCellularSrcExtraTokenSuccessTable    = CellularSrcExtraTokenSuccessTable,
+    .cellularSrcExtraTokenSuccessTableSize = CELLULAR_SRC_EXTRA_TOKEN_SUCCESS_TABLE_SIZE
+};
+
+/****************************************************************
+* The signature of the function under test.
+****************************************************************/
+
+CellularError_t Cellular_CommonGetIPAddress( CellularHandle_t cellularHandle,
+                                             uint8_t contextId,
+                                             /* FreeRTOS Cellular Library prototype. pBuffer is passed to _Cellular_AtcmdRequestWithCallback. */
+                                             /* coverity[misra_c_2012_rule_8_13_violation] */
+                                             char * pBuffer,
+                                             uint32_t bufferLength );
+
+/****************************************************************
+* The proof of Cellular_CommonGetIPAddress
+****************************************************************/
+void harness()
+{
+    CellularHandle_t pHandle = NULL;
+    uint8_t CellularSocketPdnContextId;
+    char * localIP; /*[ CELLULAR_IP_ADDRESS_MAX_SIZE ] = { '\0' }; */
+
+    localIP = ( char * ) safeMalloc( sizeof( char ) * CELLULAR_IP_ADDRESS_MAX_SIZE );
+
+    /****************************************************************
+    * Initialize the member of Cellular_CommonInit.
+    ****************************************************************/
+    Cellular_CommonInit( nondet_bool() ? NULL : &pHandle, &CellularCommInterface, &tokenTable );
+
+    Cellular_CommonGetIPAddress( pHandle, CellularSocketPdnContextId, localIP, CELLULAR_IP_ADDRESS_MAX_SIZE );
+}

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonGetIPAddress/Makefile

@@ -0,0 +1,40 @@
+#
+# Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+# the Software, and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+
+HARNESS_ENTRY=harness
+HARNESS_FILE=Cellular_CommonGetIPAddress_harness
+PROOF_UID = Cellular_CommonGetIPAddress
+
+DEFINES +=
+INCLUDES +=
+
+PROOF_SOURCES += $(PROOFDIR)/$(HARNESS_FILE).c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_cbmc_state.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/global_state_cellular.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_platform.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/sources/cellular_modules.c
+PROOF_SOURCES += $(SRCDIR)/test/cbmc/stubs/snprintf.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common_api.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_common.c
+PROJECT_SOURCES += $(SRCDIR)/source/cellular_3gpp_api.c
+
+include ../Makefile.common

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonGetIPAddress/README.md

@@ -0,0 +1,10 @@
+Cellular_CommonGetIPAddress proof
+==============
+
+This directory contains a memory safety proof for Cellular_CommonGetIPAddress.
+
+To run the proof.
+* Add cbmc, goto-cc, goto-instrument, goto-analyzer, and cbmc-viewer
+  to your path.
+* Run "make".
+* Open html/index.html in a web browser.

kernel/FreeRTOS-Plus/Source/FreeRTOS-Cellular-Interface/test/cbmc/proofs/Cellular_CommonGetIPAddress/cbmc-proof.txt

@@ -0,0 +1 @@
+# This file marks this directory as containing a CBMC proof.