Stop perusing f_prefix for non-prefix-set uses
Multiple changes by Ondrej Santiago Zajicek
This commit is contained in:
Jan Moskyto Matejka
Ondrej Zajicek (work)
parent
d7661fbe9d
commit
5e173e9f63
11 changed files with 176 additions and 182 deletions
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@ -61,7 +61,7 @@ CF_DECLS
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struct roa_table *rot;
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void *g;
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bird_clock_t time;
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struct prefix px;
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struct f_prefix px;
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struct proto_spec ps;
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struct timeformat *tf;
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}
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@ -162,7 +162,7 @@ ipa:
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ipa_raw
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| SYM {
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if ($1->class != (SYM_CONSTANT | T_IP)) cf_error("IP address expected");
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$$ = SYM_VAL($1).px.ip;
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$$ = SYM_VAL($1).ip;
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}
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;
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@ -217,8 +217,8 @@ f_generate_ec(u16 kind, struct f_inst *tk, struct f_inst *tv)
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else if (val->type == T_QUAD) {
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ipv4_used = 1; key = val->val.i;
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}
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else if (val->type == T_IP) {
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ipv4_used = 1; key = ipa_to_u32(val->val.px.ip);
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else if ((val->type == T_IP) && ipa_is_ip4(val->val.ip)) {
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ipv4_used = 1; key = ipa_to_u32(val->val.ip);
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}
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else
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cf_error("Can't operate with key of non-integer/IPv4 type in EC constructor");
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@ -297,7 +297,8 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN,
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%type <i32> pair_atom ec_expr
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%type <e> pair_item ec_item set_item switch_item set_items switch_items switch_body
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%type <trie> fprefix_set
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%type <v> set_atom switch_atom fprefix fprefix_s fipa
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%type <v> set_atom switch_atom fipa
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%type <px> fprefix
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%type <s> decls declsn one_decl function_params
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%type <h> bgp_path bgp_path_tail1 bgp_path_tail2
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@ -323,7 +324,7 @@ type:
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INT { $$ = T_INT; }
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| BOOL { $$ = T_BOOL; }
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| IP { $$ = T_IP; }
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| PREFIX { $$ = T_PREFIX; }
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| PREFIX { $$ = T_NET; }
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| PAIR { $$ = T_PAIR; }
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| QUAD { $$ = T_QUAD; }
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| EC { $$ = T_EC; }
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@ -342,7 +343,7 @@ type:
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$$ = T_SET;
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break;
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case T_PREFIX:
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case T_NET:
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$$ = T_PREFIX_SET;
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break;
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@ -477,7 +478,7 @@ block:
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* Complex types, their bison value is struct f_val
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*/
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fipa:
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ipa_raw %prec PREFIX_DUMMY { $$.type = T_IP; $$.val.px.ip = $1; }
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ipa_raw %prec PREFIX_DUMMY { $$.type = T_IP; $$.val.ip = $1; }
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;
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@ -572,26 +573,20 @@ switch_items:
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| switch_items ',' switch_item { $$ = f_merge_items($1, $3); }
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;
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fprefix_s:
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ipa_raw '/' NUM %prec '/' {
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if (($3 < 0) || ($3 > (ipa_is_ip4($1) ? IP4_MAX_PREFIX_LENGTH : IP6_MAX_PREFIX_LENGTH)) || !ip_is_prefix($1, $3)) cf_error("Invalid network prefix: %I/%d.", $1, $3);
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$$.type = T_PREFIX; $$.val.px.ip = $1; $$.val.px.len = $3;
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}
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;
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fprefix:
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fprefix_s { $$ = $1; }
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| fprefix_s '+' { $$ = $1; $$.val.px.len |= LEN_PLUS; }
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| fprefix_s '-' { $$ = $1; $$.val.px.len |= LEN_MINUS; }
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| fprefix_s '{' NUM ',' NUM '}' {
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if (! ((0 <= $3) && ($3 <= $5) && ($5 <= (ipa_is_ip4($1.val.px.ip) ? IP4_MAX_PREFIX_LENGTH : IP6_MAX_PREFIX_LENGTH)))) cf_error("Invalid prefix pattern range: {%d, %d}.", $3, $5);
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$$ = $1; $$.val.px.len |= LEN_RANGE | ($3 << 16) | ($5 << 8);
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net_ip { $$.net = $1; $$.lo = $1.n.pxlen; $$.hi = $1.n.pxlen; }
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| net_ip '+' { $$.net = $1; $$.lo = $1.n.pxlen; $$.hi = net_max_prefix_length[$1.n.type]; }
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| net_ip '-' { $$.net = $1; $$.lo = 0; $$.hi = $1.n.pxlen; }
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| net_ip '{' NUM ',' NUM '}' {
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$$.net = $1; $$.lo = $3; $$.hi = $5;
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if ((0 > $3) || ($3 > $5) || ($5 > net_max_prefix_length[$1.n.type]))
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cf_error("Invalid prefix pattern range: {%d, %d}", $3, $5);
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}
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;
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fprefix_set:
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fprefix { $$ = f_new_trie(cfg_mem, sizeof(struct f_trie_node)); trie_add_fprefix($$, &($1.val.px)); }
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| fprefix_set ',' fprefix { $$ = $1; trie_add_fprefix($$, &($3.val.px)); }
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fprefix { $$ = f_new_trie(cfg_mem, sizeof(struct f_trie_node)); trie_add_prefix($$, &($1.net.n), $1.lo, $1.hi); }
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| fprefix_set ',' fprefix { $$ = $1; trie_add_prefix($$, &($3.net.n), $3.lo, $3.hi); }
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;
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switch_body: /* EMPTY */ { $$ = NULL; }
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@ -642,8 +637,8 @@ constant:
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| TRUE { $$ = f_new_inst(); $$->code = 'c'; $$->aux = T_BOOL; $$->a2.i = 1; }
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| FALSE { $$ = f_new_inst(); $$->code = 'c'; $$->aux = T_BOOL; $$->a2.i = 0; }
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| TEXT { $$ = f_new_inst(); $$->code = 'c'; $$->aux = T_STRING; $$->a2.p = $1; }
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| fipa { NEW_F_VAL; $$ = f_new_inst(); $$->code = 'C'; $$->a1.p = val; *val = $1; }
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| fprefix_s {NEW_F_VAL; $$ = f_new_inst(); $$->code = 'C'; $$->a1.p = val; *val = $1; }
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| fipa { NEW_F_VAL; $$ = f_new_inst(); $$->code = 'C'; $$->a1.p = val; *val = $1; }
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| net_any { NEW_F_VAL; $$ = f_new_inst(); $$->code = 'C'; val->type = T_NET; val->val.net = $1; $$->a1.p = val; }
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| '[' set_items ']' { DBG( "We've got a set here..." ); $$ = f_new_inst(); $$->code = 'c'; $$->aux = T_SET; $$->a2.p = build_tree($2); DBG( "ook\n" ); }
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| '[' fprefix_set ']' { $$ = f_new_inst(); $$->code = 'c'; $$->aux = T_PREFIX_SET; $$->a2.p = $2; }
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| ENUM { $$ = f_new_inst(); $$->code = 'c'; $$->aux = $1 >> 16; $$->a2.i = $1 & 0xffff; }
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@ -706,7 +701,7 @@ symbol:
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static_attr:
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FROM { $$ = f_new_inst(); $$->aux = T_IP; $$->a2.i = SA_FROM; $$->a1.i = 1; }
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| GW { $$ = f_new_inst(); $$->aux = T_IP; $$->a2.i = SA_GW; $$->a1.i = 1; }
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| NET { $$ = f_new_inst(); $$->aux = T_PREFIX; $$->a2.i = SA_NET; }
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| NET { $$ = f_new_inst(); $$->aux = T_NET; $$->a2.i = SA_NET; }
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| PROTO { $$ = f_new_inst(); $$->aux = T_STRING; $$->a2.i = SA_PROTO; }
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| SOURCE { $$ = f_new_inst(); $$->aux = T_ENUM_RTS; $$->a2.i = SA_SOURCE; }
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| SCOPE { $$ = f_new_inst(); $$->aux = T_ENUM_SCOPE; $$->a2.i = SA_SCOPE; $$->a1.i = 1; }
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121
filter/filter.c
121
filter/filter.c
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@ -90,17 +90,8 @@ pm_format(struct f_path_mask *p, buffer *buf)
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buffer_puts(buf, "=]");
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}
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static inline int
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uint_cmp(uint i1, uint i2)
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{
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return (int)(i1 > i2) - (int)(i1 < i2);
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}
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static inline int
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u64_cmp(u64 i1, u64 i2)
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{
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return (int)(i1 > i2) - (int)(i1 < i2);
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}
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static inline int val_is_ip4(const struct f_val v)
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{ return (v.type == T_IP) && ipa_is_ip4(v.val.ip); }
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/**
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* val_compare - compare two values
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@ -114,8 +105,6 @@ u64_cmp(u64 i1, u64 i2)
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int
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val_compare(struct f_val v1, struct f_val v2)
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{
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int rc;
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if (v1.type != v2.type) {
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if (v1.type == T_VOID) /* Hack for else */
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return -1;
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@ -124,10 +113,10 @@ val_compare(struct f_val v1, struct f_val v2)
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#ifndef IPV6
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/* IP->Quad implicit conversion */
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if ((v1.type == T_QUAD) && (v2.type == T_IP))
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return uint_cmp(v1.val.i, ipa_to_u32(v2.val.px.ip));
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if ((v1.type == T_IP) && (v2.type == T_QUAD))
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return uint_cmp(ipa_to_u32(v1.val.px.ip), v2.val.i);
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if ((v1.type == T_QUAD) && val_is_ip4(v2))
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return uint_cmp(v1.val.i, ipa_to_u32(v2.val.ip));
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if (val_is_ip4(v1) && (v2.type == T_QUAD))
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return uint_cmp(ipa_to_u32(v1.val.ip), v2.val.i);
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#endif
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debug( "Types do not match in val_compare\n" );
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@ -146,11 +135,9 @@ val_compare(struct f_val v1, struct f_val v2)
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case T_EC:
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return u64_cmp(v1.val.ec, v2.val.ec);
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case T_IP:
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return ipa_compare(v1.val.px.ip, v2.val.px.ip);
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case T_PREFIX:
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if (rc = ipa_compare(v1.val.px.ip, v2.val.px.ip))
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return rc;
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return uint_cmp(v1.val.px.len, v2.val.px.len);
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return ipa_compare(v1.val.ip, v2.val.ip);
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case T_NET:
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return net_compare(v1.val.net, v2.val.net);
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case T_STRING:
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return strcmp(v1.val.s, v2.val.s);
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default:
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@ -209,24 +196,6 @@ val_same(struct f_val v1, struct f_val v2)
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}
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}
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void
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fprefix_get_bounds(struct f_prefix *px, int *l, int *h)
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{
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*l = *h = px->len & LEN_MASK;
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if (px->len & LEN_MINUS)
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*l = 0;
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else if (px->len & LEN_PLUS)
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*h = ipa_is_ip4(px->ip) ? IP4_MAX_PREFIX_LENGTH : IP6_MAX_PREFIX_LENGTH;
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else if (px->len & LEN_RANGE)
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{
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*l = 0xff & (px->len >> 16);
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*h = 0xff & (px->len >> 8);
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}
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}
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static int
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clist_set_type(struct f_tree *set, struct f_val *v)
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{
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@ -385,8 +354,8 @@ val_in_range(struct f_val v1, struct f_val v2)
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return int_set_contains(v2.val.ad, v1.val.i);
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#ifndef IPV6
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/* IP->Quad implicit conversion */
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if ((v1.type == T_IP) && (v2.type == T_CLIST))
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return int_set_contains(v2.val.ad, ipa_to_u32(v1.val.px.ip));
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if (val_is_ip4(v1) && (v2.type == T_CLIST))
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return int_set_contains(v2.val.ad, ipa_to_u32(v1.val.ip));
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#endif
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if ((v1.type == T_EC) && (v2.type == T_ECLIST))
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@ -395,14 +364,14 @@ val_in_range(struct f_val v1, struct f_val v2)
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if ((v1.type == T_STRING) && (v2.type == T_STRING))
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return patmatch(v2.val.s, v1.val.s);
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if ((v1.type == T_IP) && (v2.type == T_PREFIX))
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return ipa_in_net(v1.val.px.ip, v2.val.px.ip, v2.val.px.len);
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if ((v1.type == T_IP) && (v2.type == T_NET))
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return ipa_in_netX(v1.val.ip, v2.val.net);
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if ((v1.type == T_PREFIX) && (v2.type == T_PREFIX))
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return net_in_net(v1.val.px.ip, v1.val.px.len, v2.val.px.ip, v2.val.px.len);
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if ((v1.type == T_NET) && (v2.type == T_NET))
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return net_in_netX(v1.val.net, v2.val.net);
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if ((v1.type == T_PREFIX) && (v2.type == T_PREFIX_SET))
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return trie_match_fprefix(v2.val.ti, &v1.val.px);
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if ((v1.type == T_NET) && (v2.type == T_PREFIX_SET))
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return trie_match_net(v2.val.ti, v1.val.net);
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if (v2.type != T_SET)
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return CMP_ERROR;
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@ -437,8 +406,8 @@ val_format(struct f_val v, buffer *buf)
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case T_BOOL: buffer_puts(buf, v.val.i ? "TRUE" : "FALSE"); return;
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case T_INT: buffer_print(buf, "%u", v.val.i); return;
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case T_STRING: buffer_print(buf, "%s", v.val.s); return;
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case T_IP: buffer_print(buf, "%I", v.val.px.ip); return;
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case T_PREFIX: buffer_print(buf, "%I/%d", v.val.px.ip, v.val.px.len); return;
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case T_IP: buffer_print(buf, "%I", v.val.ip); return;
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case T_NET: buffer_print(buf, "%N", v.val.net); return;
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case T_PAIR: buffer_print(buf, "(%u,%u)", v.val.i >> 16, v.val.i & 0xffff); return;
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case T_QUAD: buffer_print(buf, "%R", v.val.i); return;
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case T_EC: ec_format(buf2, v.val.ec); buffer_print(buf, "%s", buf2); return;
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@ -630,8 +599,8 @@ interpret(struct f_inst *what)
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}
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#ifndef IPV6
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/* IP->Quad implicit conversion */
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else if (v1.type == T_IP) {
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ipv4_used = 1; key = ipa_to_u32(v1.val.px.ip);
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else if (val_is_ip4(v1)) {
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ipv4_used = 1; key = ipa_to_u32(v1.val.ip);
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}
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#endif
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else
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@ -715,9 +684,10 @@ interpret(struct f_inst *what)
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if ((sym->class != (SYM_VARIABLE | v2.type)) && (v2.type != T_VOID)) {
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#ifndef IPV6
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/* IP->Quad implicit conversion */
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if ((sym->class == (SYM_VARIABLE | T_QUAD)) && (v2.type == T_IP)) {
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if ((sym->class == (SYM_VARIABLE | T_QUAD)) && val_is_ip4(v2))
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{
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vp->type = T_QUAD;
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vp->val.i = ipa_to_u32(v2.val.px.ip);
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vp->val.i = ipa_to_u32(v2.val.ip);
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break;
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}
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#endif
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@ -790,10 +760,9 @@ interpret(struct f_inst *what)
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switch (what->a2.i)
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{
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case SA_FROM: res.val.px.ip = rta->from; break;
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case SA_GW: res.val.px.ip = rta->gw; break;
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case SA_NET: res.val.px.ip = net_prefix((*f_rte)->net->n.addr);
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res.val.px.len = net_pxlen((*f_rte)->net->n.addr); break;
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case SA_FROM: res.val.ip = rta->from; break;
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case SA_GW: res.val.ip = rta->gw; break;
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case SA_NET: res.val.net = (*f_rte)->net->n.addr; break;
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case SA_PROTO: res.val.s = rta->src->proto->name; break;
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case SA_SOURCE: res.val.i = rta->source; break;
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case SA_SCOPE: res.val.i = rta->scope; break;
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@ -820,12 +789,12 @@ interpret(struct f_inst *what)
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switch (what->a2.i)
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{
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case SA_FROM:
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rta->from = v1.val.px.ip;
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rta->from = v1.val.ip;
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break;
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case SA_GW:
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{
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ip_addr ip = v1.val.px.ip;
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ip_addr ip = v1.val.ip;
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neighbor *n = neigh_find(rta->src->proto, &ip, 0);
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if (!n || (n->scope == SCOPE_HOST))
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runtime( "Invalid gw address" );
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@ -908,7 +877,7 @@ interpret(struct f_inst *what)
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case EAF_TYPE_IP_ADDRESS:
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res.type = T_IP;
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struct adata * ad = e->u.ptr;
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res.val.px.ip = * (ip_addr *) ad->data;
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res.val.ip = * (ip_addr *) ad->data;
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break;
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case EAF_TYPE_AS_PATH:
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res.type = T_PATH;
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@ -958,8 +927,8 @@ interpret(struct f_inst *what)
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case EAF_TYPE_ROUTER_ID:
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#ifndef IPV6
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/* IP->Quad implicit conversion */
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if (v1.type == T_IP) {
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l->attrs[0].u.data = ipa_to_u32(v1.val.px.ip);
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if (val_is_ip4(v1)) {
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l->attrs[0].u.data = ipa_to_u32(v1.val.ip);
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break;
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}
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#endif
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@ -978,7 +947,7 @@ interpret(struct f_inst *what)
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int len = sizeof(ip_addr);
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struct adata *ad = lp_alloc(f_pool, sizeof(struct adata) + len);
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ad->length = len;
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(* (ip_addr *) ad->data) = v1.val.px.ip;
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(* (ip_addr *) ad->data) = v1.val.ip;
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l->attrs[0].u.ptr = ad;
|
||||
break;
|
||||
case EAF_TYPE_AS_PATH:
|
||||
|
|
@ -1053,7 +1022,7 @@ interpret(struct f_inst *what)
|
|||
ONEARG;
|
||||
res.type = T_INT;
|
||||
switch(v1.type) {
|
||||
case T_PREFIX: res.val.i = v1.val.px.len; break;
|
||||
case T_NET: res.val.i = net_pxlen(v1.val.net); break;
|
||||
case T_PATH: res.val.i = as_path_getlen(v1.val.ad); break;
|
||||
case T_CLIST: res.val.i = int_set_get_size(v1.val.ad); break;
|
||||
case T_ECLIST: res.val.i = ec_set_get_size(v1.val.ad); break;
|
||||
|
|
@ -1062,14 +1031,10 @@ interpret(struct f_inst *what)
|
|||
break;
|
||||
case P('c','p'): /* Convert prefix to ... */
|
||||
ONEARG;
|
||||
if (v1.type != T_PREFIX)
|
||||
if (v1.type != T_NET)
|
||||
runtime( "Prefix expected" );
|
||||
res.type = what->aux;
|
||||
switch(res.type) {
|
||||
/* case T_INT: res.val.i = v1.val.px.len; break; Not needed any more */
|
||||
case T_IP: res.val.px.ip = v1.val.px.ip; break;
|
||||
default: bug( "Unknown prefix to conversion" );
|
||||
}
|
||||
res.type = T_IP;
|
||||
res.val.ip = net_prefix(v1.val.net);
|
||||
break;
|
||||
case P('a','f'): /* Get first ASN from AS PATH */
|
||||
ONEARG;
|
||||
|
|
@ -1135,7 +1100,7 @@ interpret(struct f_inst *what)
|
|||
{
|
||||
ip_addr mask = ipa_mkmask(v2.val.i);
|
||||
res.type = T_IP;
|
||||
res.val.px.ip = ipa_and(mask, v1.val.px.ip);
|
||||
res.val.ip = ipa_and(mask, v1.val.ip);
|
||||
}
|
||||
break;
|
||||
|
||||
|
|
@ -1195,7 +1160,7 @@ interpret(struct f_inst *what)
|
|||
#ifndef IPV6
|
||||
/* IP->Quad implicit conversion */
|
||||
else if (v2.type == T_IP)
|
||||
n = ipa_to_u32(v2.val.px.ip);
|
||||
n = ipa_to_u32(v2.val.ip);
|
||||
#endif
|
||||
else if ((v2.type == T_SET) && clist_set_type(v2.val.t, &dummy))
|
||||
arg_set = 1;
|
||||
|
|
@ -1284,7 +1249,7 @@ interpret(struct f_inst *what)
|
|||
if (what->arg1)
|
||||
{
|
||||
TWOARGS;
|
||||
if ((v1.type != T_PREFIX) || (v2.type != T_INT))
|
||||
if ((v1.type != T_NET) || (v2.type != T_INT))
|
||||
runtime("Invalid argument to roa_check()");
|
||||
|
||||
as = v2.val.i;
|
||||
|
|
@ -1292,8 +1257,7 @@ interpret(struct f_inst *what)
|
|||
else
|
||||
{
|
||||
ACCESS_RTE;
|
||||
v1.val.px.ip = net_prefix((*f_rte)->net->n.addr);
|
||||
v1.val.px.len = net_pxlen((*f_rte)->net->n.addr);
|
||||
v1.val.net = (*f_rte)->net->n.addr;
|
||||
|
||||
/* We ignore temporary attributes, probably not a problem here */
|
||||
/* 0x02 is a value of BA_AS_PATH, we don't want to include BGP headers */
|
||||
|
|
@ -1310,7 +1274,8 @@ interpret(struct f_inst *what)
|
|||
runtime("Missing ROA table");
|
||||
|
||||
res.type = T_ENUM_ROA;
|
||||
res.val.i = roa_check(rtc->table, v1.val.px.ip, v1.val.px.len, as);
|
||||
res.val.i = ROA_UNKNOWN;
|
||||
// XXXX res.val.i = roa_check_net(rtc->table, &v1.val.net, as);
|
||||
break;
|
||||
|
||||
default:
|
||||
|
|
|
|||
|
|
@ -39,13 +39,8 @@ struct f_inst_roa_check {
|
|||
};
|
||||
|
||||
struct f_prefix {
|
||||
ip_addr ip;
|
||||
int len;
|
||||
#define LEN_MASK 0xff
|
||||
#define LEN_PLUS 0x1000000
|
||||
#define LEN_MINUS 0x2000000
|
||||
#define LEN_RANGE 0x4000000
|
||||
/* If range then prefix must be in range (len >> 16 & 0xff, len >> 8 & 0xff) */
|
||||
net_addr_union net;
|
||||
u8 lo, hi;
|
||||
};
|
||||
|
||||
struct f_val {
|
||||
|
|
@ -53,8 +48,8 @@ struct f_val {
|
|||
union {
|
||||
uint i;
|
||||
u64 ec;
|
||||
/* ip_addr ip; Folded into prefix */
|
||||
struct f_prefix px;
|
||||
ip_addr ip;
|
||||
const net_addr *net;
|
||||
char *s;
|
||||
struct f_tree *t;
|
||||
struct f_trie *ti;
|
||||
|
|
@ -81,28 +76,11 @@ int same_tree(struct f_tree *t1, struct f_tree *t2);
|
|||
void tree_format(struct f_tree *t, buffer *buf);
|
||||
|
||||
struct f_trie *f_new_trie(linpool *lp, uint node_size);
|
||||
void *trie_add_prefix(struct f_trie *t, ip_addr px, int plen, int l, int h);
|
||||
int trie_match_prefix(struct f_trie *t, ip_addr px, int plen);
|
||||
void *trie_add_prefix(struct f_trie *t, net_addr *n, uint l, uint h);
|
||||
int trie_match_net(struct f_trie *t, const net_addr *n);
|
||||
int trie_same(struct f_trie *t1, struct f_trie *t2);
|
||||
void trie_format(struct f_trie *t, buffer *buf);
|
||||
|
||||
void fprefix_get_bounds(struct f_prefix *px, int *l, int *h);
|
||||
|
||||
static inline void
|
||||
trie_add_fprefix(struct f_trie *t, struct f_prefix *px)
|
||||
{
|
||||
int l, h;
|
||||
fprefix_get_bounds(px, &l, &h);
|
||||
trie_add_prefix(t, px->ip, px->len & LEN_MASK, l, h);
|
||||
}
|
||||
|
||||
static inline int
|
||||
trie_match_fprefix(struct f_trie *t, struct f_prefix *px)
|
||||
{
|
||||
return trie_match_prefix(t, px->ip, px->len & LEN_MASK);
|
||||
}
|
||||
|
||||
|
||||
struct ea_list;
|
||||
struct rte;
|
||||
|
||||
|
|
@ -163,7 +141,7 @@ void val_format(struct f_val v, buffer *buf);
|
|||
|
||||
/* Bigger ones */
|
||||
#define T_IP 0x20
|
||||
#define T_PREFIX 0x21
|
||||
#define T_NET 0x21
|
||||
#define T_STRING 0x22
|
||||
#define T_PATH_MASK 0x23 /* mask for BGP path */
|
||||
#define T_PATH 0x24 /* BGP path */
|
||||
|
|
|
|||
|
|
@ -109,12 +109,11 @@ attach_node(struct f_trie_node *parent, struct f_trie_node *child)
|
|||
/**
|
||||
* trie_add_prefix
|
||||
* @t: trie to add to
|
||||
* @px: prefix address
|
||||
* @plen: prefix length
|
||||
* @net: IP network prefix
|
||||
* @l: prefix lower bound
|
||||
* @h: prefix upper bound
|
||||
*
|
||||
* Adds prefix (prefix pattern) @px/@plen to trie @t. @l and @h are lower
|
||||
* Adds prefix (prefix pattern) @n to trie @t. @l and @h are lower
|
||||
* and upper bounds on accepted prefix lengths, both inclusive.
|
||||
* 0 <= l, h <= 32 (128 for IPv6).
|
||||
*
|
||||
|
|
@ -124,8 +123,19 @@ attach_node(struct f_trie_node *parent, struct f_trie_node *child)
|
|||
*/
|
||||
|
||||
void *
|
||||
trie_add_prefix(struct f_trie *t, ip_addr px, int plen, int l, int h)
|
||||
trie_add_prefix(struct f_trie *t, net_addr *net, uint l, uint h)
|
||||
{
|
||||
ip_addr px = net_prefix(net);
|
||||
uint plen = net_pxlen(net);
|
||||
|
||||
if (net->type == NET_IP4)
|
||||
{
|
||||
const uint delta = IP6_MAX_PREFIX_LENGTH - IP4_MAX_PREFIX_LENGTH;
|
||||
plen += delta;
|
||||
l += delta;
|
||||
h += delta;
|
||||
}
|
||||
|
||||
if (l == 0)
|
||||
t->zero = 1;
|
||||
else
|
||||
|
|
@ -140,7 +150,7 @@ trie_add_prefix(struct f_trie *t, ip_addr px, int plen, int l, int h)
|
|||
struct f_trie_node *o = NULL;
|
||||
struct f_trie_node *n = t->root;
|
||||
|
||||
while(n)
|
||||
while (n)
|
||||
{
|
||||
ip_addr cmask = ipa_and(n->mask, pmask);
|
||||
|
||||
|
|
@ -196,17 +206,7 @@ trie_add_prefix(struct f_trie *t, ip_addr px, int plen, int l, int h)
|
|||
return a;
|
||||
}
|
||||
|
||||
/**
|
||||
* trie_match_prefix
|
||||
* @t: trie
|
||||
* @px: prefix address
|
||||
* @plen: prefix length
|
||||
*
|
||||
* Tries to find a matching prefix pattern in the trie such that
|
||||
* prefix @px/@plen matches that prefix pattern. Returns 1 if there
|
||||
* is such prefix pattern in the trie.
|
||||
*/
|
||||
int
|
||||
static int
|
||||
trie_match_prefix(struct f_trie *t, ip_addr px, int plen)
|
||||
{
|
||||
ip_addr pmask = ipa_mkmask(plen);
|
||||
|
|
@ -241,6 +241,27 @@ trie_match_prefix(struct f_trie *t, ip_addr px, int plen)
|
|||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* trie_match_net
|
||||
* @t: trie
|
||||
* @n: net address
|
||||
*
|
||||
* Tries to find a matching net in the trie such that
|
||||
* prefix @n matches that prefix pattern. Returns 1 if there
|
||||
* is such prefix pattern in the trie.
|
||||
*/
|
||||
int
|
||||
trie_match_net(struct f_trie *t, const net_addr *n)
|
||||
{
|
||||
int add = 0;
|
||||
switch (n->type) {
|
||||
case NET_IP4:
|
||||
case NET_VPN4: add = IP6_MAX_PREFIX_LENGTH - IP4_MAX_PREFIX_LENGTH;
|
||||
}
|
||||
|
||||
return trie_match_prefix(t, net_prefix(n), net_pxlen(n) + add);
|
||||
}
|
||||
|
||||
static int
|
||||
trie_node_same(struct f_trie_node *t1, struct f_trie_node *t2)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -35,6 +35,12 @@
|
|||
#define DELTA(a,b) (((a)>=(b))?(a)-(b):(b)-(a))
|
||||
#define ARRAY_SIZE(a) (sizeof(a)/sizeof(*(a)))
|
||||
|
||||
static inline int uint_cmp(uint i1, uint i2)
|
||||
{ return (int)(i1 > i2) - (int)(i1 < i2); }
|
||||
|
||||
static inline int u64_cmp(u64 i1, u64 i2)
|
||||
{ return (int)(i1 > i2) - (int)(i1 < i2); }
|
||||
|
||||
|
||||
/* Bitfield macros */
|
||||
|
||||
|
|
|
|||
6
lib/ip.h
6
lib/ip.h
|
|
@ -492,10 +492,4 @@ int ip6_pton(const char *a, ip6_addr *o);
|
|||
|
||||
char *ip_scope_text(uint);
|
||||
|
||||
struct prefix {
|
||||
ip_addr addr;
|
||||
uint len;
|
||||
};
|
||||
|
||||
|
||||
#endif
|
||||
|
|
|
|||
27
lib/net.c
27
lib/net.c
|
|
@ -58,23 +58,30 @@ net_pxmask(const net_addr *a)
|
|||
}
|
||||
}
|
||||
|
||||
|
||||
static inline int net_validate_ip4(const net_addr_ip4 *n)
|
||||
int
|
||||
net_compare(const net_addr *a, const net_addr *b)
|
||||
{
|
||||
return (n->pxlen <= IP4_MAX_PREFIX_LENGTH) &&
|
||||
ip4_zero(ip4_and(n->prefix, ip4_not(ip4_mkmask(n->pxlen))));
|
||||
}
|
||||
if (a->type != b->type)
|
||||
return uint_cmp(a->type, b->type);
|
||||
|
||||
static inline int net_validate_ip6(const net_addr_ip6 *n)
|
||||
{
|
||||
return (n->pxlen <= IP6_MAX_PREFIX_LENGTH) &&
|
||||
ip6_zero(ip6_and(n->prefix, ip6_not(ip6_mkmask(n->pxlen))));
|
||||
switch (a->type)
|
||||
{
|
||||
case NET_IP4:
|
||||
return net_compare_ip4((const net_addr_ip4 *) a, (const net_addr_ip4 *) b);
|
||||
case NET_IP6:
|
||||
return net_compare_ip6((const net_addr_ip6 *) a, (const net_addr_ip6 *) b);
|
||||
case NET_VPN4:
|
||||
return net_compare_vpn4((const net_addr_vpn4 *) a, (const net_addr_vpn4 *) b);
|
||||
case NET_VPN6:
|
||||
return net_compare_vpn6((const net_addr_vpn6 *) a, (const net_addr_vpn6 *) b);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
net_validate(const net_addr *N)
|
||||
{
|
||||
switch (a->type)
|
||||
switch (N->type)
|
||||
{
|
||||
case NET_IP4:
|
||||
case NET_VPN4:
|
||||
|
|
|
|||
31
lib/net.h
31
lib/net.h
|
|
@ -162,6 +162,21 @@ static inline int net_zero_vpn6(const net_addr_vpn6 *a)
|
|||
{ return !a->pxlen && ip6_zero(a->prefix) && !a->rd; }
|
||||
|
||||
|
||||
static inline int net_compare_ip4(const net_addr_ip4 *a, const net_addr_ip4 *b)
|
||||
{ return ip4_compare(a->prefix, b->prefix) ?: uint_cmp(a->pxlen, b->pxlen); }
|
||||
|
||||
static inline int net_compare_ip6(const net_addr_ip6 *a, const net_addr_ip6 *b)
|
||||
{ return ip6_compare(a->prefix, b->prefix) ?: uint_cmp(a->pxlen, b->pxlen); }
|
||||
|
||||
static inline int net_compare_vpn4(const net_addr_vpn4 *a, const net_addr_vpn4 *b)
|
||||
{ return u64_cmp(a->rd, b->rd) ?: ip4_compare(a->prefix, b->prefix) ?: uint_cmp(a->pxlen, b->pxlen); }
|
||||
|
||||
static inline int net_compare_vpn6(const net_addr_vpn6 *a, const net_addr_vpn6 *b)
|
||||
{ return u64_cmp(a->rd, b->rd) ?: ip6_compare(a->prefix, b->prefix) ?: uint_cmp(a->pxlen, b->pxlen); }
|
||||
|
||||
int net_compare(const net_addr *a, const net_addr *b);
|
||||
|
||||
|
||||
static inline void net_copy(net_addr *dst, const net_addr *src)
|
||||
{ memcpy(dst, src, src->length); }
|
||||
|
||||
|
|
@ -195,6 +210,21 @@ static inline u32 net_hash_vpn6(const net_addr_vpn6 *n)
|
|||
{ return ip6_hash(n->prefix) ^ ((u32) n->pxlen << 26) ^ u64_hash(n->rd); }
|
||||
|
||||
|
||||
static inline int net_validate_ip4(const net_addr_ip4 *n)
|
||||
{
|
||||
return (n->pxlen <= IP4_MAX_PREFIX_LENGTH) &&
|
||||
ip4_zero(ip4_and(n->prefix, ip4_not(ip4_mkmask(n->pxlen))));
|
||||
}
|
||||
|
||||
static inline int net_validate_ip6(const net_addr_ip6 *n)
|
||||
{
|
||||
return (n->pxlen <= IP6_MAX_PREFIX_LENGTH) &&
|
||||
ip6_zero(ip6_and(n->prefix, ip6_not(ip6_mkmask(n->pxlen))));
|
||||
}
|
||||
|
||||
int net_validate(const net_addr *N);
|
||||
|
||||
|
||||
static inline void net_normalize_ip4(net_addr_ip4 *n)
|
||||
{ n->prefix = ip4_and(n->prefix, ip4_mkmask(n->pxlen)); }
|
||||
|
||||
|
|
@ -203,7 +233,6 @@ static inline void net_normalize_ip6(net_addr_ip6 *n)
|
|||
|
||||
void net_normalize(net_addr *N);
|
||||
|
||||
int net_validate(const net_addr *N);
|
||||
|
||||
int net_classify(const net_addr *N);
|
||||
int net_format(const net_addr *N, char *buf, int buflen);
|
||||
|
|
|
|||
|
|
@ -98,10 +98,8 @@ idval:
|
|||
| SYM {
|
||||
if ($1->class == (SYM_CONSTANT | T_INT) || $1->class == (SYM_CONSTANT | T_QUAD))
|
||||
$$ = SYM_VAL($1).i;
|
||||
#ifndef IPV6
|
||||
else if ($1->class == (SYM_CONSTANT | T_IP))
|
||||
$$ = ipa_to_u32(SYM_VAL($1).px.ip);
|
||||
#endif
|
||||
else if (($1->class == (SYM_CONSTANT | T_IP)) && ipa_is_ip4(SYM_VAL($1).ip))
|
||||
$$ = ipa_to_u32(SYM_VAL($1).ip);
|
||||
else
|
||||
cf_error("Number of IPv4 address constant expected");
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2293,13 +2293,14 @@ rt_update_hostentry(rtable *tab, struct hostentry *he)
|
|||
he->igp_metric = rt_get_igp_metric(e);
|
||||
}
|
||||
|
||||
/* XXXX */
|
||||
done:
|
||||
/* Add a prefix range to the trie */
|
||||
/* XXXX
|
||||
if (ipa_is_ip4(he->addr))
|
||||
trie_add_prefix(tab->hostcache->trie, he->addr, IP4_MAX_PREFIX_LENGTH, pxlen, IP4_MAX_PREFIX_LENGTH);
|
||||
else
|
||||
trie_add_prefix(tab->hostcache->trie, he->addr, IP6_MAX_PREFIX_LENGTH, pxlen, IP6_MAX_PREFIX_LENGTH);
|
||||
*/
|
||||
|
||||
rta_free(old_src);
|
||||
return old_src != he->src;
|
||||
|
|
|
|||
Loading…
Reference in a new issue