X-Git-Url: http://git.openwrt.org/?p=project%2Fmdnsd.git;a=blobdiff_plain;f=cache.c;fp=cache.c;h=2bf8257df0982e82f98cb8c20371be8d30157317;hp=59d5b940a2e71d9ead48b32f84fedf366ca7b1c5;hb=000402bc86dacf2ffe64cdd376145fa8c7294e34;hpb=426330fffb024d3c2e4c6e34a16b04afef884d5d diff --git a/cache.c b/cache.c index 59d5b94..2bf8257 100644 --- a/cache.c +++ b/cache.c @@ -402,3 +402,76 @@ cache_dump_records(struct blob_buf *buf, const char *name) break; } } + +void +cache_dump_recursive(struct blob_buf *b, const char *name, uint16_t type, struct interface *iface) +{ + time_t now = monotonic_time(); + for (struct cache_record *r = avl_find_ge_element(&records, name, r, avl); + r && !strcmp(r->record, name); + r = !avl_is_last(&records, &r->avl) ? avl_next_element(r, avl) : NULL) { + int32_t ttl = r->ttl - (now - r->time); + if (ttl <= 0 || (iface && iface->ifindex != r->iface->ifindex) || + (type != TYPE_ANY && type != r->type)) + continue; + + const char *txt; + char buf[INET6_ADDRSTRLEN]; + void *k = blobmsg_open_table(b, NULL), *l; + const struct dns_srv_data *dsd = (const struct dns_srv_data*)r->rdata; + + blobmsg_add_string(b, "name", r->record); + blobmsg_add_string(b, "type", dns_type_string(r->type)); + blobmsg_add_u32(b, "ttl", ttl); + + switch (r->type) { + case TYPE_TXT: + if ((txt = r->txt) && strlen(txt)) { + l = blobmsg_open_array(b, "data"); + do { + blobmsg_add_string(b, NULL, txt); + txt = &txt[strlen(txt) + 1]; + } while (*txt); + blobmsg_close_array(b, l); + } + break; + + case TYPE_SRV: + if (r->rdlength > sizeof(*dsd)) { + blobmsg_add_u32(b, "priority", be16_to_cpu(dsd->priority)); + blobmsg_add_u32(b, "weight", be16_to_cpu(dsd->weight)); + blobmsg_add_u32(b, "port", be16_to_cpu(dsd->port)); + blobmsg_add_string(b, "target", (const char*)&dsd[1]); + } + break; + + case TYPE_PTR: + if (r->rdlength > 0) + blobmsg_add_string(b, "target", (const char*)r->rdata); + break; + + case TYPE_A: + if ((r->rdlength == 4) && inet_ntop(AF_INET, r->rdata, buf, sizeof(buf))) + blobmsg_add_string(b, "target", buf); + break; + + case TYPE_AAAA: + if ((r->rdlength == 16) && inet_ntop(AF_INET6, r->rdata, buf, sizeof(buf))) + blobmsg_add_string(b, "target", buf); + break; + } + + blobmsg_close_table(b, k); + + + if (r->type == TYPE_PTR) { + cache_dump_recursive(b, (const char*)r->rdata, TYPE_SRV, iface); + cache_dump_recursive(b, (const char*)r->rdata, TYPE_TXT, iface); + } + + if (r->type == TYPE_SRV) { + cache_dump_recursive(b, (const char*)&dsd[1], TYPE_A, iface); + cache_dump_recursive(b, (const char*)&dsd[1], TYPE_AAAA, iface); + } + } +}