diff options
Diffstat (limited to 'nest/rt-attr.c')
| -rw-r--r-- | nest/rt-attr.c | 102 |
1 files changed, 61 insertions, 41 deletions
diff --git a/nest/rt-attr.c b/nest/rt-attr.c index 5a7dd09..486a543 100644 --- a/nest/rt-attr.c +++ b/nest/rt-attr.c @@ -430,81 +430,105 @@ get_generic_attr(eattr *a, byte **buf, int buflen UNUSED) return GA_UNKNOWN; } +static inline void +opaque_format(struct adata *ad, byte *buf, unsigned int size) +{ + byte *bound = buf + size - 10; + int i; + + for(i = 0; i < ad->length; i++) + { + if (buf > bound) + { + strcpy(buf, " ..."); + return; + } + if (i) + *buf++ = ' '; + + buf += bsprintf(buf, "%02x", ad->data[i]); + } + + *buf = 0; + return; +} + +static inline void +ea_show_int_set(struct cli *c, struct adata *ad, int way, byte *pos, byte *buf, byte *end) +{ + int i = int_set_format(ad, way, 0, pos, end - pos); + cli_printf(c, -1012, "%s", buf); + while (i) + { + i = int_set_format(ad, way, i, buf, end - buf - 1); + cli_printf(c, -1012, "\t%s", buf); + } +} + /** - * ea_format - format an &eattr for printing - * @e: attribute to be formatted - * @buf: destination buffer of size %EA_FORMAT_BUF_SIZE + * ea_show - print an &eattr to CLI + * @c: destination CLI + * @e: attribute to be printed * - * This function takes an extended attribute represented by its - * &eattr structure and formats it nicely for printing according - * to the type information. + * This function takes an extended attribute represented by its &eattr + * structure and prints it to the CLI according to the type information. * * If the protocol defining the attribute provides its own * get_attr() hook, it's consulted first. */ void -ea_format(eattr *e, byte *buf) +ea_show(struct cli *c, eattr *e) { struct protocol *p; int status = GA_UNKNOWN; - unsigned int i; struct adata *ad = (e->type & EAF_EMBEDDED) ? NULL : e->u.ptr; - byte *end = buf + EA_FORMAT_BUF_SIZE - 1; + byte buf[CLI_MSG_SIZE]; + byte *pos = buf, *end = buf + sizeof(buf); if (p = attr_class_to_protocol[EA_PROTO(e->id)]) { - buf += bsprintf(buf, "%s.", p->name); + pos += bsprintf(pos, "%s.", p->name); if (p->get_attr) - status = p->get_attr(e, buf, end - buf); - buf += strlen(buf); + status = p->get_attr(e, pos, end - pos); + pos += strlen(pos); } else if (EA_PROTO(e->id)) - buf += bsprintf(buf, "%02x.", EA_PROTO(e->id)); + pos += bsprintf(pos, "%02x.", EA_PROTO(e->id)); else - status = get_generic_attr(e, &buf, end - buf); + status = get_generic_attr(e, &pos, end - pos); if (status < GA_NAME) - buf += bsprintf(buf, "%02x", EA_ID(e->id)); + pos += bsprintf(pos, "%02x", EA_ID(e->id)); if (status < GA_FULL) { - *buf++ = ':'; - *buf++ = ' '; + *pos++ = ':'; + *pos++ = ' '; switch (e->type & EAF_TYPE_MASK) { case EAF_TYPE_INT: - bsprintf(buf, "%u", e->u.data); + bsprintf(pos, "%u", e->u.data); break; case EAF_TYPE_OPAQUE: - *buf = 0; - for(i=0; i<ad->length; i++) - { - if (buf > end - 8) - { - strcpy(buf, " ..."); - break; - } - if (i) - *buf++ = ' '; - buf += bsprintf(buf, "%02x", ad->data[i]); - } + opaque_format(ad, pos, end - pos); break; case EAF_TYPE_IP_ADDRESS: - bsprintf(buf, "%I", *(ip_addr *) ad->data); + bsprintf(pos, "%I", *(ip_addr *) ad->data); break; case EAF_TYPE_ROUTER_ID: - bsprintf(buf, "%R", e->u.data); + bsprintf(pos, "%R", e->u.data); break; case EAF_TYPE_AS_PATH: - as_path_format(ad, buf, end - buf); + as_path_format(ad, pos, end - pos); break; case EAF_TYPE_INT_SET: - int_set_format(ad, 1, buf, end - buf); - break; + ea_show_int_set(c, ad, 1, pos, buf, end); + return; case EAF_TYPE_UNDEF: default: - bsprintf(buf, "<type %02x>", e->type); + bsprintf(pos, "<type %02x>", e->type); } } + cli_printf(c, -1012, "%s", buf); } /** @@ -834,17 +858,13 @@ rta_show(struct cli *c, rta *a, ea_list *eal) "RIP", "OSPF", "OSPF-IA", "OSPF-E1", "OSPF-E2", "BGP", "pipe" }; static char *cast_names[] = { "unicast", "broadcast", "multicast", "anycast" }; int i; - byte buf[EA_FORMAT_BUF_SIZE]; cli_printf(c, -1008, "\tType: %s %s %s", src_names[a->source], cast_names[a->cast], ip_scope_text(a->scope)); if (!eal) eal = a->eattrs; for(; eal; eal=eal->next) for(i=0; i<eal->count; i++) - { - ea_format(&eal->attrs[i], buf); - cli_printf(c, -1012, "\t%s", buf); - } + ea_show(c, &eal->attrs[i]); } /** |