- Added '--remove-claims' switch to cut off all existing claims.
This commit is contained in:
ccremers
parent
ca4c5674ac
commit
ccc4c34823
317
src/compiler.c
317
src/compiler.c
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@ -463,162 +463,167 @@ commEvent (int event, Tac tc)
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break;
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case CLAIM:
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/* now parse tuple info */
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if (trip == NULL || trip->next == NULL)
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if (!switches.removeclaims)
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{
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error ("Problem with claim %i event on line %i.", event,
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tc->lineno);
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}
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fromrole = tacTerm (trip);
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claimbig = tacTerm (tacTuple ((trip->next)));
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/* check for several types */
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claim = tupleProject (claimbig, 0);
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torole = claim;
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/* now parse tuple info */
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if (trip == NULL || trip->next == NULL)
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{
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error ("Problem with claim %i event on line %i.", event,
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tc->lineno);
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}
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fromrole = tacTerm (trip);
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claimbig = tacTerm (tacTuple ((trip->next)));
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/* check for several types */
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claim = tupleProject (claimbig, 0);
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torole = claim;
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/* check for ignored claim types */
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if (switches.filterClaim != NULL && switches.filterClaim != claim)
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{
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/* abort the construction of the node */
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return;
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}
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/* check for ignored claim types */
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if (switches.filterClaim != NULL && switches.filterClaim != claim)
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{
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/* abort the construction of the node */
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return;
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}
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/* check for obvious flaws */
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if (claim == NULL)
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{
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error ("Invalid claim specification on line %i.", tc->lineno);
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}
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if (!inTermlist (claim->stype, TERM_Claim))
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{
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printf ("ERROR: unknown claim type ");
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/* check for obvious flaws */
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if (claim == NULL)
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{
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error ("Invalid claim specification on line %i.", tc->lineno);
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}
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if (!inTermlist (claim->stype, TERM_Claim))
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{
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printf ("error: unknown claim type ");
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termPrint (claim);
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errorTac (trip->next->lineno);
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}
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/* unfold parameters to msg */
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msg = NULL;
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n = tupleCount (claimbig) - 1;
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if (n < 1)
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{
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/* no parameters */
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n = 0;
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}
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else
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{
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/* n parameters */
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msg = TermOp2 (deVar (claimbig));
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if (tupleCount (msg) != n)
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{
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error ("Problem with claim tuple unfolding at line %i.",
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trip->next->lineno);
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}
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}
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/* store claim in claim list */
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if (label == NULL)
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{
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error ("Claim should have label on line %i.",
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trip->next->lineno);
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}
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// First check whether label is unique
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cl = sys->claimlist;
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while (cl != NULL)
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{
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if (isTermEqual (cl->label, label))
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{
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/**
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*@todo This should not error exit, but automatically generate a fresh claim label.
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*/
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error ("Claim label is not unique at line %i.", tc->lineno);
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}
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cl = cl->next;
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}
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// Assert: label is unique, add claimlist info
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cl = memAlloc (sizeof (struct claimlist));
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cl->type = claim;
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cl->label = label;
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cl->protocol = thisProtocol;
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cl->rolename = fromrole;
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cl->role = thisRole;
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if (!isTermEqual (fromrole, thisRole->nameterm))
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error
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("Claim role does not correspond to execution role at line %i.",
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tc->lineno);
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cl->roledef = NULL;
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cl->count = 0;
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cl->complete = 0;
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cl->timebound = 0;
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cl->failed = 0;
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cl->prec = NULL;
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cl->roles = NULL;
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cl->alwaystrue = false;
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cl->warnings = false;
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cl->next = sys->claimlist;
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sys->claimlist = cl;
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/* handles all claim types differently */
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if (claim == CLAIM_Secret)
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{
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if (n == 0)
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{
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error
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("Secrecy claim requires a list of terms to be secret on line %i.",
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trip->next->lineno);
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}
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if (n > 1)
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{
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error
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("Secrecy claim on line %i should not contain tuples (for Arachne) until it is officially supported.",
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trip->next->lineno);
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}
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/* now check whether the claim contains variables that can actually be influenced by the intruder */
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{
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Termlist claimvars;
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Termlist readvars;
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claimvars = termlistAddVariables (NULL, msg);
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readvars = compute_read_variables (thisRole);
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while (claimvars != NULL)
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{
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if (!inTermlist (readvars, claimvars->term))
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{
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/* this claimvar does not occur in the reads? */
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/* then we should ignore it later */
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cl->alwaystrue = true;
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cl->warnings = true;
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}
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claimvars = claimvars->next;
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}
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}
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break;
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}
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if (claim == CLAIM_Nisynch)
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{
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if (n != 0)
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{
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error ("NISYNCH claim requires no parameters at line %i.",
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trip->next->lineno);
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}
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break;
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}
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if (claim == CLAIM_Niagree)
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{
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if (n != 0)
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{
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error ("NIAGREE claim requires no parameters at line %i.",
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trip->next->lineno);
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}
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break;
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}
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if (claim == CLAIM_Empty)
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{
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break;
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}
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/* hmm, no handler yet */
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printf ("error: No know handler for this claim type: ");
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termPrint (claim);
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printf (" ");
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errorTac (trip->next->lineno);
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}
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/* unfold parameters to msg */
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msg = NULL;
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n = tupleCount (claimbig) - 1;
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if (n < 1)
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{
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/* no parameters */
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n = 0;
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}
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else
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{
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/* n parameters */
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msg = TermOp2 (deVar (claimbig));
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if (tupleCount (msg) != n)
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{
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error ("Problem with claim tuple unfolding at line %i.",
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trip->next->lineno);
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}
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}
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/* store claim in claim list */
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if (label == NULL)
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{
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error ("Claim should have label on line %i.", trip->next->lineno);
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}
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// First check whether label is unique
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cl = sys->claimlist;
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while (cl != NULL)
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{
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if (isTermEqual (cl->label, label))
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{
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/**
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*@todo This should not error exit, but automatically generate a fresh claim label.
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*/
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error ("Claim label is not unique at line %i.", tc->lineno);
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}
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cl = cl->next;
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}
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// Assert: label is unique, add claimlist info
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cl = memAlloc (sizeof (struct claimlist));
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cl->type = claim;
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cl->label = label;
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cl->protocol = thisProtocol;
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cl->rolename = fromrole;
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cl->role = thisRole;
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if (!isTermEqual (fromrole, thisRole->nameterm))
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error ("Claim role does not correspond to execution role at line %i.",
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tc->lineno);
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cl->roledef = NULL;
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cl->count = 0;
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cl->complete = 0;
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cl->timebound = 0;
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cl->failed = 0;
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cl->prec = NULL;
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cl->roles = NULL;
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cl->alwaystrue = false;
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cl->warnings = false;
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cl->next = sys->claimlist;
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sys->claimlist = cl;
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/* handles all claim types differently */
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if (claim == CLAIM_Secret)
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{
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if (n == 0)
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{
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error
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("Secrecy claim requires a list of terms to be secret on line %i.",
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trip->next->lineno);
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}
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if (n > 1)
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{
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error
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("Secrecy claim on line %i should not contain tuples (for Arachne) until it is officially supported.",
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trip->next->lineno);
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}
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/* now check whether the claim contains variables that can actually be influenced by the intruder */
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{
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Termlist claimvars;
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Termlist readvars;
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claimvars = termlistAddVariables (NULL, msg);
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readvars = compute_read_variables (thisRole);
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while (claimvars != NULL)
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{
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if (!inTermlist (readvars, claimvars->term))
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{
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/* this claimvar does not occur in the reads? */
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/* then we should ignore it later */
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cl->alwaystrue = true;
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cl->warnings = true;
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}
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claimvars = claimvars->next;
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}
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}
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break;
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}
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if (claim == CLAIM_Nisynch)
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{
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if (n != 0)
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{
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error ("NISYNCH claim requires no parameters at line %i.",
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trip->next->lineno);
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}
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break;
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}
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if (claim == CLAIM_Niagree)
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{
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if (n != 0)
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{
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error ("NIAGREE claim requires no parameters at line %i.",
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trip->next->lineno);
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}
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break;
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}
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if (claim == CLAIM_Empty)
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{
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break;
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}
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/* hmm, no handler yet */
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printf ("ERROR: No know handler for this claim type: ");
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termPrint (claim);
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printf (" ");
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errorTac (trip->next->lineno);
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break;
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}
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/* and make that event */
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@ -670,7 +675,7 @@ roleCompile (Term nameterm, Tac tc)
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}
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if (thisRole == NULL)
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{
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printf ("ERROR: undeclared role name ");
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printf ("error: undeclared role name ");
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termPrint (nameterm);
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printf (" in line ");
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errorTac (tc->lineno);
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@ -710,7 +715,7 @@ roleCompile (Term nameterm, Tac tc)
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default:
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if (!normalDeclaration (tc))
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{
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printf ("ERROR: illegal command %i in role ", tc->op);
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printf ("error: illegal command %i in role ", tc->op);
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termPrint (thisRole->nameterm);
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printf (" ");
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errorTac (tc->lineno);
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@ -812,7 +817,7 @@ protocolCompile (Symbol prots, Tac tc, Tac tcroles)
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if (levelFind (prots, level) != NULL)
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{
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printf ("ERROR: Double declaration of protocol ");
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printf ("error: Double declaration of protocol ");
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symbolPrint (prots);
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printf (" ");
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errorTac (tc->lineno);
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@ -871,7 +876,7 @@ protocolCompile (Symbol prots, Tac tc, Tac tcroles)
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}
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else
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{
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printf ("ERROR: undeclared role ");
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printf ("error: undeclared role ");
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symbolPrint (tc->t1.sym);
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printf (" in protocol ");
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termPrint (pr->nameterm);
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@ -881,7 +886,7 @@ protocolCompile (Symbol prots, Tac tc, Tac tcroles)
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default:
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if (!normalDeclaration (tc))
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{
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printf ("ERROR: illegal command %i in protocol ", tc->op);
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printf ("error: illegal command %i in protocol ", tc->op);
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termPrint (thisProtocol->nameterm);
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errorTac (tc->lineno);
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}
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@ -915,7 +920,7 @@ tacProcess (Tac tc)
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default:
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if (!normalDeclaration (tc))
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{
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printf ("ERROR: illegal command %i at the global level.\n",
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printf ("error: illegal command %i at the global level.\n",
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tc->op);
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errorTac (tc->lineno);
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}
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@ -74,6 +74,7 @@ switchesInit (int argc, char **argv)
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// Misc
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switches.switchP = 0; // multi-purpose parameter
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switches.experimental = 0; // experimental stuff defaults to 0, whatever that means.
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switches.removeclaims = false; // default: leave claims from spdl file
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// Output
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switches.output = SUMMARY; // default is to show a summary
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@ -378,6 +379,22 @@ switcher (const int process, int index)
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}
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}
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if (detect (' ', "remove-claims", 0))
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{
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if (!process)
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{
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/* discourage:
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*
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* Causes all existing claims in the specification to be skipped.
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*/
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}
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else
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{
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switches.removeclaims = true;
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return index;
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}
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}
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/* ==================
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* Bounding options
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*/
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@ -53,6 +53,7 @@ struct switchdata
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// Misc
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int switchP; //!< A multi-purpose integer parameter, passed to the partial order reduction method selected.
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int experimental; //!< Experimental stuff goes here until it moves into main stuff.
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int removeclaims; //!< Remove any claims in the spdl file
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// Output
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int output; //!< From enum outputs: what should be produced. Default ATTACK.
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