mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-11-17 16:48:43 +00:00
Filter refactoring: The constant f_val is simply included inside the instruction
With 32 bits, size of the args is 12 bytes, the f_val is 20 bytes. With 64 bits, size of the args is 24 bytes, the f_val the same. This is not so nice on 32 bits, anyway the f_inst itself is 24 vs. 32 bytes and the overall size of filters must be 32k of instructions to get to one megabyte of RAM eaten by f_inst. Therefore it seems to be improbable for common user to get into problems with this change.
This commit is contained in:
Maria Matejka
parent
7f0ac73724
commit
ca2ee91a80
@ -189,15 +189,17 @@ f_generate_dpair(struct f_inst *t1, struct f_inst *t2)
|
||||
struct f_inst *rv;
|
||||
|
||||
if ((t1->fi_code == FI_CONSTANT) && (t2->fi_code == FI_CONSTANT)) {
|
||||
if ((t1->aux != T_INT) || (t2->aux != T_INT))
|
||||
if ((t1->val.type != T_INT) || (t2->val.type != T_INT))
|
||||
cf_error( "Can't operate with value of non-integer type in pair constructor");
|
||||
|
||||
check_u16(t1->a[1].i);
|
||||
check_u16(t2->a[1].i);
|
||||
|
||||
rv = f_new_inst(FI_CONSTANT);
|
||||
rv->aux = T_PAIR;
|
||||
rv->a[1].i = pair(t1->a[1].i, t2->a[1].i);
|
||||
rv->val = (struct f_val) {
|
||||
.type = T_PAIR,
|
||||
.val.i = pair(t1->a[1].i, t2->a[1].i),
|
||||
};
|
||||
}
|
||||
else {
|
||||
rv = f_new_inst(FI_PAIR_CONSTRUCT);
|
||||
@ -217,26 +219,12 @@ f_generate_ec(u16 kind, struct f_inst *tk, struct f_inst *tv)
|
||||
|
||||
if (tk->fi_code == FI_CONSTANT) {
|
||||
c1 = 1;
|
||||
|
||||
if (tk->aux == T_INT) {
|
||||
ipv4_used = 0; key = tk->a[1].i;
|
||||
}
|
||||
else if (tk->aux == T_QUAD) {
|
||||
ipv4_used = 1; key = tk->a[1].i;
|
||||
}
|
||||
else
|
||||
cf_error("Can't operate with key of non-integer/IPv4 type in EC constructor");
|
||||
}
|
||||
|
||||
/* IP->Quad implicit conversion */
|
||||
else if (tk->fi_code == FI_CONSTANT_INDIRECT) {
|
||||
c1 = 1;
|
||||
struct f_val *val = tk->a[0].p;
|
||||
struct f_val *val = &(tk->val);
|
||||
|
||||
if (val->type == T_INT) {
|
||||
ipv4_used = 0; key = val->val.i;
|
||||
}
|
||||
else if (val->type == T_QUAD) {
|
||||
else if (tk->val.type == T_QUAD) {
|
||||
ipv4_used = 1; key = val->val.i;
|
||||
}
|
||||
else if ((val->type == T_IP) && ipa_is_ip4(val->val.ip)) {
|
||||
@ -247,10 +235,10 @@ f_generate_ec(u16 kind, struct f_inst *tk, struct f_inst *tv)
|
||||
}
|
||||
|
||||
if (tv->fi_code == FI_CONSTANT) {
|
||||
if (tv->aux != T_INT)
|
||||
if (tv->val.type != T_INT)
|
||||
cf_error("Can't operate with value of non-integer type in EC constructor");
|
||||
c2 = 1;
|
||||
val2 = tv->a[1].i;
|
||||
val2 = tv->val.val.i;
|
||||
}
|
||||
|
||||
if (c1 && c2) {
|
||||
@ -271,11 +259,11 @@ f_generate_ec(u16 kind, struct f_inst *tk, struct f_inst *tv)
|
||||
ec = ec_as4(kind, key, val2);
|
||||
}
|
||||
|
||||
NEW_F_VAL;
|
||||
rv = f_new_inst(FI_CONSTANT_INDIRECT);
|
||||
rv->a[0].p = val;
|
||||
val->type = T_EC;
|
||||
val->val.ec = ec;
|
||||
rv = f_new_inst(FI_CONSTANT);
|
||||
rv->val = (struct f_val) {
|
||||
.type = T_EC,
|
||||
.val.ec = ec,
|
||||
};
|
||||
}
|
||||
else {
|
||||
rv = f_new_inst(FI_EC_CONSTRUCT);
|
||||
@ -293,15 +281,14 @@ f_generate_lc(struct f_inst *t1, struct f_inst *t2, struct f_inst *t3)
|
||||
struct f_inst *rv;
|
||||
|
||||
if ((t1->fi_code == FI_CONSTANT) && (t2->fi_code == FI_CONSTANT) && (t3->fi_code == FI_CONSTANT)) {
|
||||
if ((t1->aux != T_INT) || (t2->aux != T_INT) || (t3->aux != T_INT))
|
||||
if ((t1->val.type != T_INT) || (t2->val.type != T_INT) || (t3->val.type != T_INT))
|
||||
cf_error( "LC - Can't operate with value of non-integer type in tuple constructor");
|
||||
|
||||
rv = f_new_inst(FI_CONSTANT_INDIRECT);
|
||||
|
||||
NEW_F_VAL;
|
||||
rv->a[0].p = val;
|
||||
val->type = T_LC;
|
||||
val->val.lc = (lcomm) { t1->a[1].i, t2->a[1].i, t3->a[1].i };
|
||||
rv = f_new_inst(FI_CONSTANT);
|
||||
rv->val = (struct f_val) {
|
||||
.type = T_LC,
|
||||
.val.lc = (lcomm) { t1->a[1].i, t2->a[1].i, t3->a[1].i },
|
||||
};
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -325,12 +312,11 @@ f_generate_path_mask(struct f_path_mask *t)
|
||||
}
|
||||
}
|
||||
|
||||
NEW_F_VAL;
|
||||
val->type = T_PATH_MASK;
|
||||
val->val.path_mask = t;
|
||||
|
||||
struct f_inst *rv = f_new_inst(FI_CONSTANT_INDIRECT);
|
||||
rv->a[0].p = val;
|
||||
struct f_inst *rv = f_new_inst(FI_CONSTANT);
|
||||
rv->val = (struct f_val) {
|
||||
.type = T_PATH_MASK,
|
||||
.val.path_mask = t,
|
||||
};
|
||||
|
||||
return rv;
|
||||
}
|
||||
@ -771,8 +757,6 @@ switch_body: /* EMPTY */ { $$ = NULL; }
|
||||
}
|
||||
;
|
||||
|
||||
/* CONST '(' expr ')' { $$ = f_new_inst(FI_CONSTANT); $$->aux = T_INT; $$->a[1].i = $3; } */
|
||||
|
||||
bgp_path_expr:
|
||||
symbol { $$ = $1; }
|
||||
| '(' term ')' { $$ = $2; }
|
||||
@ -792,16 +776,21 @@ bgp_path_tail:
|
||||
;
|
||||
|
||||
constant:
|
||||
NUM { $$ = f_new_inst(FI_CONSTANT); $$->aux = T_INT; $$->a[1].i = $1; }
|
||||
| TRUE { $$ = f_new_inst(FI_CONSTANT); $$->aux = T_BOOL; $$->a[1].i = 1; }
|
||||
| FALSE { $$ = f_new_inst(FI_CONSTANT); $$->aux = T_BOOL; $$->a[1].i = 0; }
|
||||
| TEXT { $$ = f_new_inst(FI_CONSTANT); $$->aux = T_STRING; $$->a[1].p = $1; }
|
||||
| fipa { NEW_F_VAL; $$ = f_new_inst(FI_CONSTANT_INDIRECT); $$->a[0].p = val; *val = $1; }
|
||||
| VPN_RD { NEW_F_VAL; $$ = f_new_inst(FI_CONSTANT_INDIRECT); val->type = T_RD; val->val.ec = $1; $$->a[0].p = val; }
|
||||
| net_ { NEW_F_VAL; $$ = f_new_inst(FI_CONSTANT_INDIRECT); val->type = T_NET; val->val.net = $1; $$->a[0].p = val; }
|
||||
| '[' set_items ']' { DBG( "We've got a set here..." ); $$ = f_new_inst(FI_CONSTANT); $$->aux = T_SET; $$->a[1].p = build_tree($2); DBG( "ook\n" ); }
|
||||
| '[' fprefix_set ']' { $$ = f_new_inst(FI_CONSTANT); $$->aux = T_PREFIX_SET; $$->a[1].p = $2; }
|
||||
| ENUM { $$ = f_new_inst(FI_CONSTANT); $$->aux = $1 >> 16; $$->a[1].i = $1 & 0xffff; }
|
||||
NUM { $$ = f_new_inst(FI_CONSTANT); $$->val = (struct f_val) { .type = T_INT, .val.i = $1, }; }
|
||||
| TRUE { $$ = f_new_inst(FI_CONSTANT); $$->val = (struct f_val) { .type = T_BOOL, .val.i = 1, }; }
|
||||
| FALSE { $$ = f_new_inst(FI_CONSTANT); $$->val = (struct f_val) { .type = T_BOOL, .val.i = 0, }; }
|
||||
| TEXT { $$ = f_new_inst(FI_CONSTANT); $$->val = (struct f_val) { .type = T_STRING, .val.s = $1, }; }
|
||||
| fipa { $$ = f_new_inst(FI_CONSTANT); $$->val = $1; }
|
||||
| VPN_RD { $$ = f_new_inst(FI_CONSTANT); $$->val = (struct f_val) { .type = T_RD, .val.ec = $1, }; }
|
||||
| net_ { $$ = f_new_inst(FI_CONSTANT); $$->val = (struct f_val) { .type = T_NET, .val.net = $1, }; }
|
||||
| '[' set_items ']' {
|
||||
DBG( "We've got a set here..." );
|
||||
$$ = f_new_inst(FI_CONSTANT);
|
||||
$$->val = (struct f_val) { .type = T_SET, .val.t = build_tree($2), };
|
||||
DBG( "ook\n" );
|
||||
}
|
||||
| '[' fprefix_set ']' { $$ = f_new_inst(FI_CONSTANT); $$->val = (struct f_val) { .type = T_PREFIX_SET, .val.ti = $2, }; }
|
||||
| ENUM { $$ = f_new_inst(FI_CONSTANT); $$->val = (struct f_val) { .type = $1 >> 16, .val.i = $1 & 0xffff, }; }
|
||||
;
|
||||
|
||||
constructor:
|
||||
|
||||
@ -240,16 +240,7 @@
|
||||
|
||||
/* some constants have value in a[1], some in *a[0].p, strange. */
|
||||
case FI_CONSTANT: /* integer (or simple type) constant, string, set, or prefix_set */
|
||||
res.type = what->aux;
|
||||
|
||||
if (res.type == T_PREFIX_SET)
|
||||
res.val.ti = what->a[1].p;
|
||||
else if (res.type == T_SET)
|
||||
res.val.t = what->a[1].p;
|
||||
else if (res.type == T_STRING)
|
||||
res.val.s = what->a[1].p;
|
||||
else
|
||||
res.val.i = what->a[1].i;
|
||||
res = what->val;
|
||||
break;
|
||||
case FI_VARIABLE:
|
||||
case FI_CONSTANT_INDIRECT:
|
||||
|
||||
@ -14,6 +14,39 @@
|
||||
#include "nest/route.h"
|
||||
#include "nest/attrs.h"
|
||||
|
||||
struct f_prefix {
|
||||
net_addr net;
|
||||
u8 lo, hi;
|
||||
};
|
||||
|
||||
struct f_val {
|
||||
int type; /* T_* */
|
||||
union {
|
||||
uint i;
|
||||
u64 ec;
|
||||
lcomm lc;
|
||||
ip_addr ip;
|
||||
const net_addr *net;
|
||||
char *s;
|
||||
struct f_tree *t;
|
||||
struct f_trie *ti;
|
||||
struct adata *ad;
|
||||
struct f_path_mask *path_mask;
|
||||
} val;
|
||||
};
|
||||
|
||||
struct f_dynamic_attr {
|
||||
int type;
|
||||
int f_type;
|
||||
int ea_code;
|
||||
};
|
||||
|
||||
struct f_static_attr {
|
||||
int f_type;
|
||||
int sa_code;
|
||||
int readonly;
|
||||
};
|
||||
|
||||
/* Filter instruction types */
|
||||
|
||||
#define FI__TWOCHAR(a,b) ((a<<8) | b)
|
||||
@ -88,9 +121,12 @@ struct f_inst { /* Instruction */
|
||||
enum f_instruction_code fi_code;
|
||||
u16 aux; /* Extension to instruction code, T_*, EA_*, EAF_* */
|
||||
union {
|
||||
uint i;
|
||||
void *p;
|
||||
} a[3]; /* The three arguments */
|
||||
union {
|
||||
uint i;
|
||||
void *p;
|
||||
} a[3]; /* The three arguments */
|
||||
struct f_val val; /* The value if FI_CONSTANT */
|
||||
};
|
||||
int lineno;
|
||||
};
|
||||
|
||||
@ -103,40 +139,6 @@ struct f_inst_roa_check {
|
||||
struct f_inst i;
|
||||
struct rtable_config *rtc;
|
||||
};
|
||||
|
||||
struct f_prefix {
|
||||
net_addr net;
|
||||
u8 lo, hi;
|
||||
};
|
||||
|
||||
struct f_val {
|
||||
int type; /* T_* */
|
||||
union {
|
||||
uint i;
|
||||
u64 ec;
|
||||
lcomm lc;
|
||||
ip_addr ip;
|
||||
const net_addr *net;
|
||||
char *s;
|
||||
struct f_tree *t;
|
||||
struct f_trie *ti;
|
||||
struct adata *ad;
|
||||
struct f_path_mask *path_mask;
|
||||
} val;
|
||||
};
|
||||
|
||||
struct f_dynamic_attr {
|
||||
int type;
|
||||
int f_type;
|
||||
int ea_code;
|
||||
};
|
||||
|
||||
struct f_static_attr {
|
||||
int f_type;
|
||||
int sa_code;
|
||||
int readonly;
|
||||
};
|
||||
|
||||
struct filter {
|
||||
char *name;
|
||||
struct f_inst *root;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user