static int list_set_list(const struct ip_set *set, struct sk_buff *skb, struct netlink_callback *cb) { const struct list_set *map = set->data; struct nlattr *atd, *nested; u32 i, first = cb->args[2]; const struct set_elem *e; atd = ipset_nest_start(skb, IPSET_ATTR_ADT); if (!atd) return -EMSGSIZE; for (; cb->args[2] < map->size; cb->args[2]++) { i = cb->args[2]; e = list_set_elem(map, i); if (e->id == IPSET_INVALID_ID) goto finish; if (with_timeout(map->timeout) && list_set_expired(map, i)) continue; nested = ipset_nest_start(skb, IPSET_ATTR_DATA); if (!nested) { if (i == first) { nla_nest_cancel(skb, atd); return -EMSGSIZE; } else goto nla_put_failure; } if (nla_put_string(skb, IPSET_ATTR_NAME, ip_set_name_byindex(e->id))) goto nla_put_failure; if (with_timeout(map->timeout)) { const struct set_telem *te = (const struct set_telem *) e; __be32 to = htonl(ip_set_timeout_get(te->timeout)); if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT, to)) goto nla_put_failure; } ipset_nest_end(skb, nested); } finish: ipset_nest_end(skb, atd); /* Set listing finished */ cb->args[2] = 0; return 0; nla_put_failure: nla_nest_cancel(skb, nested); ipset_nest_end(skb, atd); if (unlikely(i == first)) { cb->args[2] = 0; return -EMSGSIZE; } return 0; }
static int list_set_list(const struct ip_set *set, struct sk_buff *skb, struct netlink_callback *cb) { const struct list_set *map = set->data; struct nlattr *atd, *nested; u32 i, first = cb->args[IPSET_CB_ARG0]; const struct set_elem *e; atd = ipset_nest_start(skb, IPSET_ATTR_ADT); if (!atd) return -EMSGSIZE; for (; cb->args[IPSET_CB_ARG0] < map->size; cb->args[IPSET_CB_ARG0]++) { i = cb->args[IPSET_CB_ARG0]; e = list_set_elem(set, map, i); if (e->id == IPSET_INVALID_ID) goto finish; if (SET_WITH_TIMEOUT(set) && ip_set_timeout_expired(ext_timeout(e, set))) continue; nested = ipset_nest_start(skb, IPSET_ATTR_DATA); if (!nested) { if (i == first) { nla_nest_cancel(skb, atd); return -EMSGSIZE; } else goto nla_put_failure; } if (nla_put_string(skb, IPSET_ATTR_NAME, ip_set_name_byindex(map->net, e->id))) goto nla_put_failure; if (ip_set_put_extensions(skb, set, e, true)) goto nla_put_failure; ipset_nest_end(skb, nested); } finish: ipset_nest_end(skb, atd); /* Set listing finished */ cb->args[IPSET_CB_ARG0] = 0; return 0; nla_put_failure: nla_nest_cancel(skb, nested); if (unlikely(i == first)) { cb->args[IPSET_CB_ARG0] = 0; return -EMSGSIZE; } ipset_nest_end(skb, atd); return 0; }