mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-11-08 12:18:42 +00:00
Fixes some BFD bugs and makes logging thread-safe.
This commit is contained in:
Ondrej Zajicek
parent
6a8d3f1c1f
commit
0e175f9f0f
@ -87,7 +87,7 @@ CF_DECLS
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%left '!'
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%nonassoc '.'
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CF_KEYWORDS(DEFINE, ON, OFF, YES, NO, XS, XMS, XUS)
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CF_KEYWORDS(DEFINE, ON, OFF, YES, NO, S, MS, US)
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CF_GRAMMAR
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@ -126,11 +126,10 @@ expr:
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;
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/* XXX fix X* symbols, they collide with macros */
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expr_us:
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expr XS { $$ = (u32) $1 * 1000000; }
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| expr XMS { $$ = (u32) $1 * 1000; }
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| expr XUS { $$ = (u32) $1 * 1; }
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expr S { $$ = (u32) $1 * 1000000; }
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| expr MS { $$ = (u32) $1 * 1000; }
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| expr US { $$ = (u32) $1 * 1; }
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;
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/* expr_u16: expr { check_u16($1); $$ = $1; }; */
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103
filter/filter.c
103
filter/filter.c
@ -75,41 +75,35 @@ pm_path_compare(struct f_path_mask *m1, struct f_path_mask *m2)
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u32 f_eval_asn(struct f_inst *expr);
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static void
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pm_format(struct f_path_mask *p, byte *buf, unsigned int size)
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pm_format(struct f_path_mask *p, buffer *buf)
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{
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byte *end = buf + size - 16;
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buffer_puts(buf, "[= ");
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while (p)
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{
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if (buf > end)
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{
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strcpy(buf, " ...");
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return;
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}
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switch(p->kind)
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{
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case PM_ASN:
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buf += bsprintf(buf, " %u", p->val);
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buffer_print(buf, "%u ", p->val);
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break;
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case PM_QUESTION:
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buf += bsprintf(buf, " ?");
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buffer_puts(buf, "? ");
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break;
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case PM_ASTERISK:
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buf += bsprintf(buf, " *");
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buffer_puts(buf, "* ");
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break;
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case PM_ASN_EXPR:
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buf += bsprintf(buf, " %u", f_eval_asn((struct f_inst *) p->val));
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buffer_print(buf, "%u ", f_eval_asn((struct f_inst *) p->val));
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break;
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}
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p = p->next;
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}
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*buf = 0;
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buffer_puts(buf, "=]");
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}
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static inline int int_cmp(int i1, int i2)
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@ -119,7 +113,7 @@ static inline int int_cmp(int i1, int i2)
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else return 1;
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}
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static inline int uint_cmp(unsigned int i1, unsigned int i2)
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static inline int uint_cmp(uint i1, uint i2)
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{
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if (i1 == i2) return 0;
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if (i1 < i2) return -1;
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@ -440,60 +434,32 @@ val_in_range(struct f_val v1, struct f_val v2)
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return CMP_ERROR;
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}
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static void
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tree_node_print(struct f_tree *t, char **sep)
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{
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if (t == NULL)
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return;
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tree_node_print(t->left, sep);
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logn(*sep);
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val_print(t->from);
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if (val_compare(t->from, t->to) != 0)
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{
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logn( ".." );
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val_print(t->to);
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}
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*sep = ", ";
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tree_node_print(t->right, sep);
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}
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static void
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tree_print(struct f_tree *t)
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{
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char *sep = "";
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logn( "[" );
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tree_node_print(t, &sep);
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logn( "] " );
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}
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/*
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* val_print - format filter value
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* val_format - format filter value
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*/
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void
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val_print(struct f_val v)
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val_format(struct f_val v, buffer *buf)
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{
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char buf2[1024];
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switch (v.type) {
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case T_VOID: logn("(void)"); return;
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case T_BOOL: logn(v.val.i ? "TRUE" : "FALSE"); return;
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case T_INT: logn("%d", v.val.i); return;
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case T_STRING: logn("%s", v.val.s); return;
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case T_IP: logn("%I", v.val.px.ip); return;
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case T_PREFIX: logn("%I/%d", v.val.px.ip, v.val.px.len); return;
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case T_PAIR: logn("(%d,%d)", v.val.i >> 16, v.val.i & 0xffff); return;
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case T_QUAD: logn("%R", v.val.i); return;
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case T_EC: ec_format(buf2, v.val.ec); logn("%s", buf2); return;
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case T_PREFIX_SET: trie_print(v.val.ti); return;
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case T_SET: tree_print(v.val.t); return;
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case T_ENUM: logn("(enum %x)%d", v.type, v.val.i); return;
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case T_PATH: as_path_format(v.val.ad, buf2, 1000); logn("(path %s)", buf2); return;
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case T_CLIST: int_set_format(v.val.ad, 1, -1, buf2, 1000); logn("(clist %s)", buf2); return;
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case T_ECLIST: ec_set_format(v.val.ad, -1, buf2, 1000); logn("(eclist %s)", buf2); return;
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case T_PATH_MASK: pm_format(v.val.path_mask, buf2, 1000); logn("(pathmask%s)", buf2); return;
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default: logn( "[unknown type %x]", v.type ); return;
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switch (v.type)
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{
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case T_VOID: buffer_puts(buf, "(void)"); return;
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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, "%d", 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_PAIR: buffer_print(buf, "(%d,%d)", 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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case T_PREFIX_SET: trie_format(v.val.ti, buf); return;
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case T_SET: tree_format(v.val.t, buf); return;
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case T_ENUM: buffer_print(buf, "(enum %x)%d", v.type, v.val.i); return;
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case T_PATH: as_path_format(v.val.ad, buf2, 1000); buffer_print(buf, "(path %s)", buf2); return;
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case T_CLIST: int_set_format(v.val.ad, 1, -1, buf2, 1000); buffer_print(buf, "(clist %s)", buf2); return;
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case T_ECLIST: ec_set_format(v.val.ad, -1, buf2, 1000); buffer_print(buf, "(eclist %s)", buf2); return;
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case T_PATH_MASK: pm_format(v.val.path_mask, buf); return;
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default: buffer_print(buf, "[unknown type %x]", v.type); return;
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}
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}
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@ -501,6 +467,7 @@ static struct rte **f_rte;
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static struct rta *f_old_rta;
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static struct ea_list **f_tmp_attrs;
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static struct linpool *f_pool;
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static struct buffer f_buf;
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static int f_flags;
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static inline void f_rte_cow(void)
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@ -782,7 +749,7 @@ interpret(struct f_inst *what)
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break;
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case 'p':
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ONEARG;
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val_print(v1);
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val_format(v1, &f_buf);
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break;
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case '?': /* ? has really strange error value, so we can implement if ... else nicely :-) */
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ONEARG;
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@ -800,7 +767,7 @@ interpret(struct f_inst *what)
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case P('p',','):
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ONEARG;
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if (what->a2.i == F_NOP || (what->a2.i != F_NONL && what->a1.p))
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log_commit(*L_INFO);
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log_commit(*L_INFO, &f_buf);
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switch (what->a2.i) {
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case F_QUITBIRD:
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@ -1502,7 +1469,8 @@ f_run(struct filter *filter, struct rte **rte, struct ea_list **tmp_attrs, struc
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f_pool = tmp_pool;
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f_flags = flags;
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log_reset();
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LOG_BUFFER_INIT(f_buf);
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struct f_val res = interpret(filter->root);
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if (f_old_rta) {
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@ -1541,7 +1509,8 @@ f_eval(struct f_inst *expr, struct linpool *tmp_pool)
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f_rte = NULL;
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f_pool = tmp_pool;
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log_reset();
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LOG_BUFFER_INIT(f_buf);
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return interpret(expr);
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}
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@ -78,12 +78,13 @@ struct f_inst *f_generate_roa_check(struct symbol *sym, struct f_inst *prefix, s
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struct f_tree *build_tree(struct f_tree *);
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struct f_tree *find_tree(struct f_tree *t, struct f_val val);
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int same_tree(struct f_tree *t1, struct f_tree *t2);
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void tree_format(struct f_tree *t, buffer *buf);
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struct f_trie *f_new_trie(linpool *lp);
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void trie_add_prefix(struct f_trie *t, ip_addr px, int plen, int l, int h);
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int trie_match_prefix(struct f_trie *t, ip_addr px, int plen);
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int trie_same(struct f_trie *t1, struct f_trie *t2);
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void trie_print(struct f_trie *t);
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void trie_format(struct f_trie *t, buffer *buf);
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void fprefix_get_bounds(struct f_prefix *px, int *l, int *h);
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@ -118,7 +119,8 @@ int i_same(struct f_inst *f1, struct f_inst *f2);
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int val_compare(struct f_val v1, struct f_val v2);
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int tree_compare(const void *p1, const void *p2);
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void val_print(struct f_val v);
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void val_format(struct f_val v, buffer *buf);
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#define F_NOP 0
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#define F_NONL 1
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@ -132,3 +132,37 @@ same_tree(struct f_tree *t1, struct f_tree *t2)
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return 0;
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return 1;
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}
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static void
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tree_node_format(struct f_tree *t, buffer *buf)
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{
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if (t == NULL)
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return;
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tree_node_format(t->left, buf);
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val_format(t->from, buf);
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if (val_compare(t->from, t->to) != 0)
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{
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buffer_puts(buf, "..");
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val_format(t->to, buf);
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}
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buffer_puts(buf, ", ");
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tree_node_format(t->right, buf);
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}
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void
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tree_format(struct f_tree *t, buffer *buf)
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{
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buffer_puts(buf, "[");
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tree_node_format(t, buf);
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/* Undo last separator */
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if (buf->pos[-1] != '[')
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buf->pos -= 2;
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buffer_puts(buf, "]");
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}
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@ -265,37 +265,37 @@ trie_same(struct f_trie *t1, struct f_trie *t2)
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}
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static void
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trie_node_print(struct f_trie_node *t, char **sep)
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trie_node_format(struct f_trie_node *t, buffer *buf)
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{
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if (t == NULL)
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return;
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if (ipa_nonzero(t->accept))
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{
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logn("%s%I/%d{%I}", *sep, t->addr, t->plen, t->accept);
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*sep = ", ";
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}
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buffer_print(buf, "%I/%d{%I}, ", t->addr, t->plen, t->accept);
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trie_node_print(t->c[0], sep);
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trie_node_print(t->c[1], sep);
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trie_node_format(t->c[0], buf);
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trie_node_format(t->c[1], buf);
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}
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/**
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* trie_print
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* @t: trie to be printed
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* trie_format
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* @t: trie to be formatted
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* @buf: destination buffer
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*
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* Prints the trie to the log buffer.
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* Prints the trie to the supplied buffer.
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*/
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void
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trie_print(struct f_trie *t)
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trie_format(struct f_trie *t, buffer *buf)
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{
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char *sep = "";
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logn("[");
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buffer_puts(buf, "[");
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if (t->zero)
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{
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logn("0.0.0.0/0");
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sep = ", ";
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}
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trie_node_print(&t->root, &sep);
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logn("]");
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buffer_print(buf, "0.0.0.0/0, ");
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trie_node_format(&t->root, buf);
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/* Undo last separator */
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if (buf->pos[-1] != '[')
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buf->pos -= 2;
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buffer_puts(buf, "]");
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}
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@ -10,6 +10,7 @@
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#define _BIRD_BIRDLIB_H_
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#include "timer.h"
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#include "alloca.h"
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/* Ugly structure offset handling macros */
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@ -19,12 +20,12 @@
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/* Utility macros */
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#ifdef PARSER
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#define _MIN(a,b) (((a)<(b))?(a):(b))
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#define _MAX(a,b) (((a)>(b))?(a):(b))
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#else
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#define MIN(a,b) (((a)<(b))?(a):(b))
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#define MAX(a,b) (((a)>(b))?(a):(b))
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#ifndef PARSER
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#define MIN(a,b) _MIN(a,b)
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#define MAX(a,b) _MAX(a,b)
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#endif
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#define ABS(a) ((a)>=0 ? (a) : -(a))
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@ -34,24 +35,61 @@
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#define NULL ((void *) 0)
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#endif
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/* Macros for gcc attributes */
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#define NORET __attribute__((noreturn))
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#define UNUSED __attribute__((unused))
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/* Microsecond time */
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typedef s64 btime;
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#define _S *1000000
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#define _MS *1000
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#define _US *1
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#define TO_S /1000000
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#define TO_MS /1000
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#define TO_US /1
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#ifndef PARSER
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#define S _S
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#define MS _MS
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#define US _US
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#endif
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/* Logging and dying */
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typedef struct buffer {
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byte *start;
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byte *pos;
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byte *end;
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} buffer;
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#define STACK_BUFFER_INIT(buf,size) \
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do { \
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buf.start = alloca(size); \
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buf.pos = buf.start; \
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buf.end = buf.start + size; \
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} while(0)
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#define LOG_BUFFER_INIT(buf) \
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STACK_BUFFER_INIT(buf, LOG_BUFFER_SIZE)
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#define LOG_BUFFER_SIZE 1024
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struct rate_limit {
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bird_clock_t timestamp;
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int count;
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};
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#define log log_msg
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void log_reset(void);
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void log_commit(int class);
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void log_commit(int class, buffer *buf);
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void log_msg(char *msg, ...);
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void log_rl(struct rate_limit *rl, char *msg, ...);
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void logn(char *msg, ...);
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void die(char *msg, ...) NORET;
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void bug(char *msg, ...) NORET;
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37
lib/printf.c
37
lib/printf.c
@ -410,3 +410,40 @@ int bsnprintf(char * buf, int size, const char *fmt, ...)
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va_end(args);
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return i;
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}
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int
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buffer_vprint(buffer *buf, const char *fmt, va_list args)
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{
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int i = bvsnprintf((char *) buf->pos, buf->end - buf->pos, fmt, args);
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buf->pos = (i >= 0) ? (buf->pos + i) : buf->end;
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return i;
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}
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int
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buffer_print(buffer *buf, const char *fmt, ...)
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{
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va_list args;
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int i;
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va_start(args, fmt);
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i=bvsnprintf((char *) buf->pos, buf->end - buf->pos, fmt, args);
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va_end(args);
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buf->pos = (i >= 0) ? (buf->pos + i) : buf->end;
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return i;
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}
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void
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buffer_puts(buffer *buf, const char *str)
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{
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byte *bp = buf->pos;
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byte *be = buf->end;
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while (bp < be && *str)
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*bp++ = *str++;
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|
||||
if (bp < be)
|
||||
*bp = 0;
|
||||
|
||||
buf->pos = bp;
|
||||
}
|
||||
|
||||
@ -17,6 +17,10 @@ int bvsprintf(char *str, const char *fmt, va_list args);
|
||||
int bsnprintf(char *str, int size, const char *fmt, ...);
|
||||
int bvsnprintf(char *str, int size, const char *fmt, va_list args);
|
||||
|
||||
int buffer_vprint(buffer *buf, const char *fmt, va_list args);
|
||||
int buffer_print(buffer *buf, const char *fmt, ...);
|
||||
void buffer_puts(buffer *buf, const char *str);
|
||||
|
||||
int patmatch(byte *pat, byte *str);
|
||||
|
||||
#endif
|
||||
|
||||
10
nest/cmds.c
10
nest/cmds.c
@ -92,13 +92,10 @@ cmd_show_memory(void)
|
||||
cli_msg(0, "");
|
||||
}
|
||||
|
||||
extern const char *log_buffer_ptr;
|
||||
|
||||
void
|
||||
cmd_eval(struct f_inst *expr)
|
||||
{
|
||||
struct f_val v = f_eval(expr, this_cli->parser_pool);
|
||||
log_reset();
|
||||
|
||||
if (v.type == T_RETURN)
|
||||
{
|
||||
@ -106,7 +103,8 @@ cmd_eval(struct f_inst *expr)
|
||||
return;
|
||||
}
|
||||
|
||||
val_print(v);
|
||||
cli_msg(23, "%s", log_buffer_ptr);
|
||||
log_reset();
|
||||
buffer buf;
|
||||
LOG_BUFFER_INIT(buf);
|
||||
val_format(v, &buf);
|
||||
cli_msg(23, "%s", buf.start);
|
||||
}
|
||||
|
||||
@ -17,6 +17,9 @@
|
||||
#define HASH_IP_EQ(a,b) ipa_equal(a,b)
|
||||
#define HASH_IP_FN(k) ipa_hash(k)
|
||||
|
||||
|
||||
const char *bfd_state_names[] = { "AdminDown", "Down", "Init", "Up" };
|
||||
|
||||
static inline void bfd_notify_kick(struct bfd_proto *p);
|
||||
|
||||
static void
|
||||
@ -28,7 +31,7 @@ bfd_session_update_state(struct bfd_session *s, uint state, uint diag)
|
||||
if (s->loc_state == state)
|
||||
return;
|
||||
|
||||
//TRACE(D_EVENTS, "Session changed %I %d %d", s->addr, state, diag);
|
||||
TRACE(D_EVENTS, "Session changed %I %d %d", s->addr, state, diag);
|
||||
debug("STATE %I %d %d %d\n", s->addr, s->loc_state, state, diag);
|
||||
|
||||
bfd_lock_sessions(p);
|
||||
@ -547,8 +550,6 @@ bfd_start(struct proto *P)
|
||||
init_list(&p->sock_list);
|
||||
|
||||
|
||||
birdloop_mask_wakeups(p->loop);
|
||||
|
||||
init_list(&p->notify_list);
|
||||
bfd_notify_init(p);
|
||||
|
||||
@ -561,7 +562,7 @@ bfd_start(struct proto *P)
|
||||
WALK_LIST(n, cf->neigh_list)
|
||||
bfd_start_neighbor(p, n);
|
||||
|
||||
birdloop_unmask_wakeups(p->loop);
|
||||
birdloop_start(p->loop);
|
||||
|
||||
return PS_UP;
|
||||
}
|
||||
@ -572,6 +573,13 @@ bfd_shutdown(struct proto *P)
|
||||
{
|
||||
struct bfd_proto *p = (struct bfd_proto *) P;
|
||||
|
||||
birdloop_stop(p->loop);
|
||||
|
||||
/* FIXME: This is hack */
|
||||
birdloop_enter(p->loop);
|
||||
rfree(p->tpool);
|
||||
birdloop_leave(p->loop);
|
||||
|
||||
return PS_DOWN;
|
||||
}
|
||||
|
||||
@ -661,8 +669,8 @@ bfd_show_sessions(struct proto *P)
|
||||
tx_int = (MAX(s->des_min_tx_int, s->rem_min_rx_int) TO_MS);
|
||||
timeout = (MAX(s->req_min_rx_int, s->rem_min_tx_int) TO_MS) * s->rem_detect_mult;
|
||||
|
||||
cli_msg(-1013, "%I\t%s\t%d %d\t%u\t%u",
|
||||
s->addr, ifname, state, diag, tx_int, timeout);
|
||||
cli_msg(-1013, "%I\t%s\t%s %d\t%u\t%u",
|
||||
s->addr, ifname, bfd_state_names[state], diag, tx_int, timeout);
|
||||
}
|
||||
HASH_WALK_END;
|
||||
|
||||
|
||||
@ -27,9 +27,9 @@
|
||||
#define BFD_ECHO_PORT 3785
|
||||
#define BFD_MULTI_CTL_PORT 4784
|
||||
|
||||
#define BFD_DEFAULT_MIN_RX_INT (10 MS)
|
||||
#define BFD_DEFAULT_MIN_TX_INT (100 MS)
|
||||
#define BFD_DEFAULT_IDLE_TX_INT (1 S)
|
||||
#define BFD_DEFAULT_MIN_RX_INT (10 _MS)
|
||||
#define BFD_DEFAULT_MIN_TX_INT (100 _MS)
|
||||
#define BFD_DEFAULT_IDLE_TX_INT (1 _S)
|
||||
#define BFD_DEFAULT_MULTIPLIER 5
|
||||
|
||||
|
||||
@ -127,6 +127,7 @@ struct bfd_session
|
||||
};
|
||||
|
||||
|
||||
extern const char *bfd_state_names[];
|
||||
|
||||
#define BFD_STATE_ADMIN_DOWN 0
|
||||
#define BFD_STATE_DOWN 1
|
||||
@ -146,6 +147,7 @@ struct bfd_session
|
||||
#define BFD_POLL_TX 1
|
||||
#define BFD_POLL_RX 2
|
||||
|
||||
#define BFD_FLAGS 0x3f
|
||||
#define BFD_FLAG_POLL (1 << 5)
|
||||
#define BFD_FLAG_FINAL (1 << 4)
|
||||
#define BFD_FLAG_CPI (1 << 3)
|
||||
|
||||
@ -35,6 +35,7 @@ struct birdloop
|
||||
btime real_time;
|
||||
u8 use_monotonic_clock;
|
||||
|
||||
u8 stop_called;
|
||||
u8 poll_active;
|
||||
u8 wakeup_masked;
|
||||
int wakeup_fds[2];
|
||||
@ -85,7 +86,7 @@ times_init(struct birdloop *loop)
|
||||
rv = clock_gettime(CLOCK_MONOTONIC, &ts);
|
||||
if (rv < 0)
|
||||
{
|
||||
// log(L_WARN "Monotonic clock is missing");
|
||||
log(L_WARN "Monotonic clock is missing");
|
||||
|
||||
loop->use_monotonic_clock = 0;
|
||||
loop->last_time = 0;
|
||||
@ -94,13 +95,11 @@ times_init(struct birdloop *loop)
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
if ((ts.tv_sec < 0) || (((s64) ts.tv_sec) > ((s64) 1 << 40)))
|
||||
log(L_WARN "Monotonic clock is crazy");
|
||||
*/
|
||||
|
||||
loop->use_monotonic_clock = 1;
|
||||
loop->last_time = (ts.tv_sec S) + (ts.tv_nsec / 1000);
|
||||
loop->last_time = ((s64) ts.tv_sec S) + (ts.tv_nsec / 1000);
|
||||
loop->real_time = 0;
|
||||
}
|
||||
|
||||
@ -114,12 +113,10 @@ times_update_pri(struct birdloop *loop)
|
||||
if (rv < 0)
|
||||
die("clock_gettime: %m");
|
||||
|
||||
btime new_time = (ts.tv_sec S) + (ts.tv_nsec / 1000);
|
||||
btime new_time = ((s64) ts.tv_sec S) + (ts.tv_nsec / 1000);
|
||||
|
||||
/*
|
||||
if (new_time < loop->last_time)
|
||||
log(L_ERR "Monotonic clock is broken");
|
||||
*/
|
||||
|
||||
loop->last_time = new_time;
|
||||
loop->real_time = 0;
|
||||
@ -135,15 +132,13 @@ times_update_alt(struct birdloop *loop)
|
||||
if (rv < 0)
|
||||
die("gettimeofday: %m");
|
||||
|
||||
btime new_time = (tv.tv_sec S) + tv.tv_usec;
|
||||
btime new_time = ((s64) tv.tv_sec S) + tv.tv_usec;
|
||||
btime delta = new_time - loop->real_time;
|
||||
|
||||
if ((delta < 0) || (delta > (60 S)))
|
||||
{
|
||||
/*
|
||||
if (loop->real_time)
|
||||
log(L_WARN "Time jump, delta %d us", (int) delta);
|
||||
*/
|
||||
|
||||
delta = 100 MS;
|
||||
}
|
||||
@ -621,14 +616,31 @@ birdloop_new(pool *p)
|
||||
timers_init(loop);
|
||||
sockets_init(loop);
|
||||
|
||||
|
||||
int rv = pthread_create(&loop->thread, NULL, birdloop_main, loop);
|
||||
if (rv < 0)
|
||||
die("pthread_create(): %m");
|
||||
|
||||
return loop;
|
||||
}
|
||||
|
||||
void
|
||||
birdloop_start(struct birdloop *loop)
|
||||
{
|
||||
int rv = pthread_create(&loop->thread, NULL, birdloop_main, loop);
|
||||
if (rv)
|
||||
die("pthread_create(): %M", rv);
|
||||
}
|
||||
|
||||
void
|
||||
birdloop_stop(struct birdloop *loop)
|
||||
{
|
||||
pthread_mutex_lock(&loop->mutex);
|
||||
loop->stop_called = 1;
|
||||
wakeup_do_kick(loop);
|
||||
pthread_mutex_unlock(&loop->mutex);
|
||||
|
||||
int rv = pthread_join(loop->thread, NULL);
|
||||
if (rv)
|
||||
die("pthread_join(): %M", rv);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
birdloop_enter(struct birdloop *loop)
|
||||
{
|
||||
@ -707,12 +719,18 @@ birdloop_main(void *arg)
|
||||
if (loop->close_scheduled)
|
||||
sockets_close_fds(loop);
|
||||
|
||||
if (loop->stop_called)
|
||||
break;
|
||||
|
||||
if (rv)
|
||||
sockets_fire(loop);
|
||||
|
||||
timers_fire(loop);
|
||||
}
|
||||
|
||||
loop->stop_called = 0;
|
||||
pthread_mutex_unlock(&loop->mutex);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
@ -15,16 +15,6 @@
|
||||
// #include "lib/timer.h"
|
||||
|
||||
|
||||
#define S *1000000
|
||||
#define MS *1000
|
||||
#define US *1
|
||||
#define TO_S /1000000
|
||||
#define TO_MS /1000
|
||||
#define TO_US /1
|
||||
|
||||
|
||||
typedef s64 btime;
|
||||
|
||||
typedef struct timer2
|
||||
{
|
||||
resource r;
|
||||
@ -89,6 +79,8 @@ void sk_stop(sock *s);
|
||||
|
||||
|
||||
struct birdloop *birdloop_new(pool *p);
|
||||
void birdloop_start(struct birdloop *loop);
|
||||
void birdloop_stop(struct birdloop *loop);
|
||||
void birdloop_enter(struct birdloop *loop);
|
||||
void birdloop_leave(struct birdloop *loop);
|
||||
void birdloop_mask_wakeups(struct birdloop *loop);
|
||||
|
||||
@ -21,7 +21,7 @@ struct bfd_ctl_packet
|
||||
};
|
||||
|
||||
#define BFD_BASE_LEN sizeof(struct bfd_ctl_packet)
|
||||
|
||||
#define BFD_MAX_LEN 64
|
||||
|
||||
static inline u8 bfd_pack_vdiag(u8 version, u8 diag)
|
||||
{ return (version << 5) | diag; }
|
||||
@ -43,11 +43,28 @@ static inline void bfd_pkt_set_state(struct bfd_ctl_packet *pkt, u8 val)
|
||||
{ pkt->flags = val << 6; }
|
||||
|
||||
|
||||
char *
|
||||
bfd_format_flags(u8 flags, char *buf)
|
||||
{
|
||||
char *bp = buf;
|
||||
if (flags & BFD_FLAGS) *bp++ = ' ';
|
||||
if (flags & BFD_FLAG_POLL) *bp++ = 'P';
|
||||
if (flags & BFD_FLAG_FINAL) *bp++ = 'F';
|
||||
if (flags & BFD_FLAG_CPI) *bp++ = 'C';
|
||||
if (flags & BFD_FLAG_AP) *bp++ = 'A';
|
||||
if (flags & BFD_FLAG_DEMAND) *bp++ = 'D';
|
||||
if (flags & BFD_FLAG_MULTIPOINT) *bp++ = 'M';
|
||||
*bp = 0;
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
void
|
||||
bfd_send_ctl(struct bfd_proto *p, struct bfd_session *s, int final)
|
||||
{
|
||||
sock *sk = s->bsock->sk;
|
||||
struct bfd_ctl_packet *pkt = (struct bfd_ctl_packet *) sk->tbuf;
|
||||
char fb[8];
|
||||
|
||||
pkt->vdiag = bfd_pack_vdiag(1, s->loc_diag);
|
||||
pkt->flags = bfd_pack_flags(s->loc_state, 0);
|
||||
@ -65,7 +82,10 @@ bfd_send_ctl(struct bfd_proto *p, struct bfd_session *s, int final)
|
||||
pkt->flags |= BFD_FLAG_POLL;
|
||||
|
||||
if (sk->tbuf != sk->tpos)
|
||||
log(L_ERR "%s: old packet was overwritten in TX buffer", p->p.name);
|
||||
log(L_WARN "%s: Old packet overwritten in TX buffer", p->p.name);
|
||||
|
||||
TRACE(D_PACKETS, "Sending CTL to %I [%s%s]", s->addr,
|
||||
bfd_state_names[s->loc_state], bfd_format_flags(pkt->flags, fb));
|
||||
|
||||
sk_send_to(sk, pkt->length, s->addr, sk->dport);
|
||||
}
|
||||
@ -79,6 +99,10 @@ bfd_rx_hook(sock *sk, int len)
|
||||
struct bfd_ctl_packet *pkt = (struct bfd_ctl_packet *) sk->rbuf;
|
||||
const char *err_dsc = NULL;
|
||||
uint err_val = 0;
|
||||
char fb[8];
|
||||
|
||||
if ((sk->sport == BFD_CONTROL_PORT) && (sk->ttl < 255))
|
||||
DROP("wrong TTL", sk->ttl);
|
||||
|
||||
if (len < BFD_BASE_LEN)
|
||||
DROP("too short", len);
|
||||
@ -93,7 +117,8 @@ bfd_rx_hook(sock *sk, int len)
|
||||
if (pkt->detect_mult == 0)
|
||||
DROP("invalid detect mult", 0);
|
||||
|
||||
if (pkt->flags & BFD_FLAG_MULTIPOINT)
|
||||
if ((pkt->flags & BFD_FLAG_MULTIPOINT) ||
|
||||
((pkt->flags & BFD_FLAG_POLL) && (pkt->flags & BFD_FLAG_FINAL)))
|
||||
DROP("invalid flags", pkt->flags);
|
||||
|
||||
if (pkt->snd_id == 0)
|
||||
@ -107,7 +132,7 @@ bfd_rx_hook(sock *sk, int len)
|
||||
s = bfd_find_session_by_id(p, id);
|
||||
|
||||
if (!s)
|
||||
DROP("unknown session", id);
|
||||
DROP("unknown session id", id);
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -138,11 +163,14 @@ bfd_rx_hook(sock *sk, int len)
|
||||
s->rem_min_rx_int = ntohl(pkt->req_min_rx_int);
|
||||
s->rem_detect_mult = pkt->detect_mult;
|
||||
|
||||
TRACE(D_PACKETS, "CTL received from %I [%s%s]", sk->faddr,
|
||||
bfd_state_names[s->rem_state], bfd_format_flags(pkt->flags, fb));
|
||||
|
||||
bfd_session_process_ctl(s, pkt->flags, old_tx_int, old_rx_int);
|
||||
return 1;
|
||||
|
||||
drop:
|
||||
// log(L_WARN "%s: Bad packet from %I - %s (%u)", p->p.name, sk->faddr, err_dsc, err_val);
|
||||
log(L_REMOTE "%s: Bad packet from %I - %s (%u)", p->p.name, sk->faddr, err_dsc, err_val);
|
||||
return 1;
|
||||
}
|
||||
|
||||
@ -161,7 +189,7 @@ bfd_open_rx_sk(struct bfd_proto *p, int multihop)
|
||||
sk->sport = !multihop ? BFD_CONTROL_PORT : BFD_MULTI_CTL_PORT;
|
||||
sk->data = p;
|
||||
|
||||
sk->rbsize = 64; // XXX
|
||||
sk->rbsize = BFD_MAX_LEN;
|
||||
sk->rx_hook = bfd_rx_hook;
|
||||
sk->err_hook = bfd_err_hook;
|
||||
|
||||
@ -195,7 +223,7 @@ bfd_open_tx_sk(struct bfd_proto *p, ip_addr local, struct iface *ifa)
|
||||
sk->iface = ifa;
|
||||
sk->data = p;
|
||||
|
||||
sk->tbsize = 64; // XXX
|
||||
sk->tbsize = BFD_MAX_LEN;
|
||||
sk->err_hook = bfd_err_hook;
|
||||
|
||||
/* TODO: configurable ToS, priority and TTL security */
|
||||
|
||||
@ -538,6 +538,9 @@ sk_free(resource *r)
|
||||
if (s->fd >= 0)
|
||||
{
|
||||
close(s->fd);
|
||||
if (s->flags & SKF_THREAD)
|
||||
return;
|
||||
|
||||
if (s == current_sock)
|
||||
current_sock = sk_next(s);
|
||||
if (s == stored_sock)
|
||||
|
||||
@ -32,8 +32,17 @@ static FILE *dbgf;
|
||||
static list *current_log_list;
|
||||
static char *current_syslog_name; /* NULL -> syslog closed */
|
||||
|
||||
bird_clock_t rate_limit_time = 5;
|
||||
int rate_limit_count = 5;
|
||||
static const bird_clock_t rate_limit_time = 5;
|
||||
static const int rate_limit_count = 5;
|
||||
|
||||
|
||||
// XXX add ifdef for threads
|
||||
|
||||
#include <pthread.h>
|
||||
static pthread_mutex_t log_mutex;
|
||||
static inline void log_lock(void) { pthread_mutex_lock(&log_mutex); }
|
||||
static inline void log_unlock(void) { pthread_mutex_unlock(&log_mutex); }
|
||||
|
||||
|
||||
#ifdef HAVE_SYSLOG
|
||||
#include <sys/syslog.h>
|
||||
@ -65,28 +74,6 @@ static char *class_names[] = {
|
||||
"BUG"
|
||||
};
|
||||
|
||||
#define LOG_BUFFER_SIZE 1024
|
||||
static char log_buffer[LOG_BUFFER_SIZE];
|
||||
static char *log_buffer_pos;
|
||||
static int log_buffer_remains;
|
||||
|
||||
const char *log_buffer_ptr = log_buffer;
|
||||
|
||||
|
||||
/**
|
||||
* log_reset - reset the log buffer
|
||||
*
|
||||
* This function resets a log buffer and discards buffered
|
||||
* messages. Should be used before a log message is prepared
|
||||
* using logn().
|
||||
*/
|
||||
void
|
||||
log_reset(void)
|
||||
{
|
||||
log_buffer_pos = log_buffer;
|
||||
log_buffer_remains = LOG_BUFFER_SIZE;
|
||||
log_buffer[0] = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* log_commit - commit a log message
|
||||
@ -101,10 +88,14 @@ log_reset(void)
|
||||
* in log(), so it should be written like *L_INFO.
|
||||
*/
|
||||
void
|
||||
log_commit(int class)
|
||||
log_commit(int class, buffer *buf)
|
||||
{
|
||||
struct log_config *l;
|
||||
|
||||
if (buf->pos == buf->end)
|
||||
strcpy(buf->end - 100, " ... <too long>");
|
||||
|
||||
log_lock();
|
||||
WALK_LIST(l, *current_log_list)
|
||||
{
|
||||
if (!(l->mask & (1 << class)))
|
||||
@ -119,47 +110,30 @@ log_commit(int class)
|
||||
tm_format_datetime(tbuf, &config->tf_log, now);
|
||||
fprintf(l->fh, "%s <%s> ", tbuf, class_names[class]);
|
||||
}
|
||||
fputs(log_buffer, l->fh);
|
||||
fputs(buf->start, l->fh);
|
||||
fputc('\n', l->fh);
|
||||
fflush(l->fh);
|
||||
}
|
||||
#ifdef HAVE_SYSLOG
|
||||
else
|
||||
syslog(syslog_priorities[class], "%s", log_buffer);
|
||||
syslog(syslog_priorities[class], "%s", buf->start);
|
||||
#endif
|
||||
}
|
||||
cli_echo(class, log_buffer);
|
||||
log_unlock();
|
||||
|
||||
log_reset();
|
||||
}
|
||||
|
||||
static void
|
||||
log_print(const char *msg, va_list args)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (log_buffer_remains == 0)
|
||||
return;
|
||||
|
||||
i=bvsnprintf(log_buffer_pos, log_buffer_remains, msg, args);
|
||||
if (i < 0)
|
||||
{
|
||||
bsprintf(log_buffer + LOG_BUFFER_SIZE - 100, " ... <too long>");
|
||||
log_buffer_remains = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
log_buffer_pos += i;
|
||||
log_buffer_remains -= i;
|
||||
/* FIXME: cli_echo is not thread-safe */
|
||||
cli_echo(class, buf->start);
|
||||
}
|
||||
|
||||
int buffer_vprint(buffer *buf, const char *fmt, va_list args);
|
||||
|
||||
static void
|
||||
vlog(int class, const char *msg, va_list args)
|
||||
{
|
||||
log_reset();
|
||||
log_print(msg, args);
|
||||
log_commit(class);
|
||||
buffer buf;
|
||||
LOG_BUFFER_INIT(buf);
|
||||
buffer_vprint(&buf, msg, args);
|
||||
log_commit(class, &buf);
|
||||
}
|
||||
|
||||
|
||||
@ -188,26 +162,6 @@ log_msg(char *msg, ...)
|
||||
va_end(args);
|
||||
}
|
||||
|
||||
/**
|
||||
* logn - prepare a partial message in the log buffer
|
||||
* @msg: printf-like formatting string (without message class information)
|
||||
*
|
||||
* This function formats a message according to the format string @msg
|
||||
* and adds it to the log buffer. Messages in the log buffer are
|
||||
* logged when the buffer is flushed using log_commit() function. The
|
||||
* message should not contain |\n|, log_commit() also terminates a
|
||||
* line.
|
||||
*/
|
||||
void
|
||||
logn(char *msg, ...)
|
||||
{
|
||||
va_list args;
|
||||
|
||||
va_start(args, msg);
|
||||
log_print(msg, args);
|
||||
va_end(args);
|
||||
}
|
||||
|
||||
void
|
||||
log_rl(struct rate_limit *rl, char *msg, ...)
|
||||
{
|
||||
|
||||
@ -199,7 +199,7 @@ unix_read_config(struct config **cp, char *name)
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
static struct config *
|
||||
read_config(void)
|
||||
{
|
||||
struct config *conf;
|
||||
@ -211,7 +211,8 @@ read_config(void)
|
||||
else
|
||||
die("Unable to open configuration file %s: %m", config_name);
|
||||
}
|
||||
config_commit(conf, RECONFIG_HARD, 0);
|
||||
|
||||
return conf;
|
||||
}
|
||||
|
||||
void
|
||||
@ -713,7 +714,7 @@ main(int argc, char **argv)
|
||||
proto_build(&proto_unix_kernel);
|
||||
proto_build(&proto_unix_iface);
|
||||
|
||||
read_config();
|
||||
struct config *conf = read_config();
|
||||
|
||||
if (parse_and_exit)
|
||||
exit(0);
|
||||
@ -735,6 +736,8 @@ main(int argc, char **argv)
|
||||
|
||||
signal_init();
|
||||
|
||||
config_commit(conf, RECONFIG_HARD, 0);
|
||||
|
||||
#ifdef LOCAL_DEBUG
|
||||
async_dump_flag = 1;
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user