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Filter: Minor cleanups
This commit is contained in:
Ondrej Zajicek (work)
parent
b2a4feeb4c
commit
bfa15a642f
@ -91,6 +91,7 @@
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else
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RESULT_VAL(v1);
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}
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INST(FI_PAIR_CONSTRUCT, 2, 1) {
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ARG(1,T_INT);
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ARG(2,T_INT);
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@ -100,6 +101,7 @@
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runtime( "Can't operate with value out of bounds in pair constructor" );
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RESULT(T_PAIR, i, (u1 << 16) | u2);
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}
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INST(FI_EC_CONSTRUCT, 2, 1) {
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ARG_ANY(1);
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ARG(2, T_INT);
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@ -120,7 +122,7 @@
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ipv4_used = 1; key = ipa_to_u32(v1.val.ip);
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}
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else
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runtime("Argument 1 of instruction FI_EC_CONSTRUCT must be integer or IPv4 address, got 0x%02x");
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runtime("Argument 1 of EC constructor must be integer or IPv4 address, got 0x%02x", v1.type);
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val = v2.val.i;
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@ -173,21 +175,21 @@
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if (fstk->vcnt < whati->count) /* TODO: make this check systematic */
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runtime("Construction of BGP path mask from %u elements must have at least that number of elements", whati->count);
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#define pv fstk->vstk[fstk->vcnt - whati->count + i]
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#define pv(i) fstk->vstk[fstk->vcnt - whati->count + (i)]
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FID_INTERPRET_NEW
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#define pv items[i]->i_FI_CONSTANT.val
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#define pv(i) items[i]->i_FI_CONSTANT.val
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FID_INTERPRET_BODY
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struct f_path_mask *pm = falloc(sizeof(struct f_path_mask) + whati->count * sizeof(struct f_path_mask_item));
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for (uint i=0; i<whati->count; i++) {
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switch (pv.type) {
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switch (pv(i).type) {
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case T_PATH_MASK_ITEM:
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pm->item[i] = pv.val.pmi;
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pm->item[i] = pv(i).val.pmi;
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break;
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case T_INT:
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pm->item[i] = (struct f_path_mask_item) {
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.asn = pv.val.i,
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.asn = pv(i).val.i,
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.kind = PM_ASN,
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};
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break;
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@ -195,6 +197,7 @@
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runtime( "Error resolving path mask template: value not an integer" );
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}
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}
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#undef pv
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FID_INTERPRET_EXEC
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fstk->vcnt -= whati->count;
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@ -295,7 +298,7 @@
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.type = T_QUAD,
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.val.i = ipa_to_u32(v1.val.ip),
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};
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else
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else
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runtime( "Assigning to variable of incompatible type" );
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}
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@ -308,8 +311,7 @@
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RESULT_VAL(fstk->vstk[curline.vbase + sym->offset]);
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}
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/* some constants have value in a[1], some in *a[0].p, strange. */
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INST(FI_CONSTANT, 0, 1) { /* integer (or simple type) constant, string, set, or prefix_set */
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INST(FI_CONSTANT, 0, 1) {
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FID_MEMBER(
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struct f_val,
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val,
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@ -320,6 +322,7 @@
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RESULT_VAL(val);
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}
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INST(FI_CONDITION, 1, 0) {
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ARG(1, T_BOOL);
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if (v1.val.i)
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@ -341,10 +344,10 @@
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FID_INTERPRET_BODY
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#define pv fstk->vstk[fstk->vcnt - whati->count + i]
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#define pv(i) fstk->vstk[fstk->vcnt - whati->count + (i)]
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if (whati->count)
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for (uint i=0; i<whati->count; i++)
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val_format(&(pv), &fs->buf);
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val_format(&(pv(i)), &fs->buf);
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#undef pv
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fstk->vcnt -= whati->count;
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@ -371,8 +374,8 @@
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bug( "unknown return type: Can't happen");
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}
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}
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INST(FI_RTA_GET, 0, 1) { /* rta access */
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INST(FI_RTA_GET, 0, 1) {
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{
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STATIC_ATTR;
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ACCESS_RTE;
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@ -577,6 +580,7 @@
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case EAF_TYPE_OPAQUE:
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runtime( "Setting opaque attribute is not allowed" );
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break;
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case EAF_TYPE_IP_ADDRESS:
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if (v1.type != T_IP)
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runtime( "Setting ip attribute to non-ip value" );
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@ -586,11 +590,13 @@
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(* (ip_addr *) ad->data) = v1.val.ip;
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l->attrs[0].u.ptr = ad;
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break;
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case EAF_TYPE_AS_PATH:
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if (v1.type != T_PATH)
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runtime( "Setting path attribute to non-path value" );
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l->attrs[0].u.ptr = v1.val.ad;
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break;
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case EAF_TYPE_BITFIELD:
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if (v1.type != T_BOOL)
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runtime( "Setting bit in bitfield attribute to non-bool value" );
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@ -605,22 +611,27 @@
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l->attrs[0].u.data = data & ~(1u << da.bit);
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}
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break;
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case EAF_TYPE_INT_SET:
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if (v1.type != T_CLIST)
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runtime( "Setting clist attribute to non-clist value" );
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l->attrs[0].u.ptr = v1.val.ad;
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break;
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case EAF_TYPE_EC_SET:
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if (v1.type != T_ECLIST)
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runtime( "Setting eclist attribute to non-eclist value" );
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l->attrs[0].u.ptr = v1.val.ad;
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break;
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case EAF_TYPE_LC_SET:
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if (v1.type != T_LCLIST)
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runtime( "Setting lclist attribute to non-lclist value" );
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l->attrs[0].u.ptr = v1.val.ad;
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break;
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default: bug("Unknown type in e,S");
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default:
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bug("Unknown dynamic attribute type");
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}
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f_rta_cow(fs);
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@ -728,7 +739,7 @@
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RESULT(T_INT, i, as);
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}
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INST(FI_AS_PATH_LAST, 1, 1) { /* Get last ASN from AS PATH */
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INST(FI_AS_PATH_LAST, 1, 1) { /* Get last ASN from AS PATH */
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ARG(1, T_PATH);
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int as = 0;
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as_path_get_last(v1.val.ad, &as);
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@ -754,7 +765,6 @@
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if (!fstk->ecnt)
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if (fstk->vstk[retpos].type == T_BOOL)
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if (fstk->vstk[retpos].val.i)
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return F_ACCEPT;
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else
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return F_REJECT;
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@ -775,7 +785,7 @@
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/* Push the body on stack */
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LINEX(sym->function);
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curline.emask |= FE_RETURN;
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/* Before this instruction was called, there was the T_VOID
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* automatic return value pushed on value stack and also
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* sym->function->args function arguments. Setting the
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@ -181,7 +181,7 @@ interpret(struct filter_state *fs, const struct f_line *line, struct f_val *val)
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/* The same as with the value stack. Not resetting the stack for performance reasons. */
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fstk->ecnt = 1;
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fstk->estk[0].line = line;
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fstk->estk[0].line = line;
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fstk->estk[0].pos = 0;
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#define curline fstk->estk[fstk->ecnt-1]
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@ -225,7 +225,7 @@ interpret(struct filter_state *fs, const struct f_line *line, struct f_val *val)
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#undef ACCESS_EATTRS
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}
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}
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/* End of current line. Drop local variables before exiting. */
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fstk->vcnt -= curline.line->vars;
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fstk->vcnt -= curline.line->args;
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@ -335,7 +335,7 @@ f_run(const struct filter *filter, struct rte **rte, struct linpool *tmp_pool, i
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}
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/**
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* f_eval_rte – run a filter line for an uncached route
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* f_eval_rte - run a filter line for an uncached route
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* @expr: filter line to run
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* @rte: route being filtered, may be modified
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* @tmp_pool: all filter allocations go from this pool
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@ -364,7 +364,7 @@ f_eval_rte(const struct f_line *expr, struct rte **rte, struct linpool *tmp_pool
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}
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/*
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* f_eval – get a value of a term
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* f_eval - get a value of a term
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* @expr: filter line containing the term
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* @tmp_pool: long data may get allocated from this pool
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* @pres: here the output will be stored
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@ -383,7 +383,7 @@ f_eval(const struct f_line *expr, struct linpool *tmp_pool, struct f_val *pres)
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}
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/*
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* f_eval_int – get an integer value of a term
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* f_eval_int - get an integer value of a term
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* Called internally from the config parser, uses its internal memory pool
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* for allocations. Do not call in other cases.
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*/
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@ -409,7 +409,7 @@ f_eval_int(const struct f_line *expr)
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}
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/*
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* f_eval_buf – get a value of a term and print it to the supplied buffer
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* f_eval_buf - get a value of a term and print it to the supplied buffer
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*/
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enum filter_return
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f_eval_buf(const struct f_line *expr, struct linpool *tmp_pool, buffer *buf)
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