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Filter: macro for recursive interpretation of instructions

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This commit is contained in:
Jan Maria Matejka 2018-05-02 12:34:35 +02:00
parent 0ec6b5ecd3
commit c3becfe193
1 changed files with 9 additions and 8 deletions
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17
filter/filter.c
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@ -590,16 +590,18 @@ static struct tbf rl_runtime_err = TBF_DEFAULT_LOG_LIMITS;
return res; \
} while(0)
#define ARG_ANY(n) \
v##n = interpret(what->a##n.p); \
if (v##n.type & T_RETURN) \
return v##n;
#define ARG_ANY(n) INTERPRET(v##n, what->a##n.p)
#define ARG(n,t) ARG_ANY(n) \
if (v##n.type != t) \
runtime("Argument %d of instruction %s must be of type %02x, got %02x", \
n, f_instruction_name(what->fi_code), t, v##n.type);
#define INTERPRET(val, what_) \
val = interpret(what_); \
if (val.type & T_RETURN) \
return val;
#define ACCESS_RTE \
do { if (!f_rte) runtime("No route to access"); } while (0)
@ -747,7 +749,8 @@ interpret(struct f_inst *what)
while (tt) {
*vv = lp_alloc(f_pool, sizeof(struct f_path_mask));
if (tt->kind == PM_ASN_EXPR) {
struct f_val res = interpret((struct f_inst *) tt->val);
struct f_val res;
INTERPRET(res, (struct f_inst *) tt->val);
(*vv)->kind = PM_ASN;
if (res.type != T_INT) {
runtime( "Error resolving path mask template: value not an integer" );
@ -1312,9 +1315,7 @@ interpret(struct f_inst *what)
}
/* It is actually possible to have t->data NULL */
res = interpret(t->data);
if (res.type & T_RETURN)
return res;
INTERPRET(res, t->data);
}
break;
case FI_IP_MASK: /* IP.MASK(val) */