diff options
Diffstat (limited to 'iptables/nft-bridge.c')
-rw-r--r-- | iptables/nft-bridge.c | 109 |
1 files changed, 23 insertions, 86 deletions
diff --git a/iptables/nft-bridge.c b/iptables/nft-bridge.c index 3f85cbbf..d98fd527 100644 --- a/iptables/nft-bridge.c +++ b/iptables/nft-bridge.c @@ -58,44 +58,11 @@ void ebt_cs_clean(struct iptables_command_state *cs) } } -static void ebt_print_mac(const unsigned char *mac) -{ - int j; - - for (j = 0; j < ETH_ALEN; j++) - printf("%02x%s", mac[j], (j==ETH_ALEN-1) ? "" : ":"); -} - -static bool mac_all_ones(const unsigned char *mac) -{ - static const char hlpmsk[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; - - return memcmp(mac, hlpmsk, sizeof(hlpmsk)) == 0; -} - /* Put the mac address into 6 (ETH_ALEN) bytes returns 0 on success. */ static void ebt_print_mac_and_mask(const unsigned char *mac, const unsigned char *mask) { - - if (!memcmp(mac, eb_mac_type_unicast, 6) && - !memcmp(mask, eb_msk_type_unicast, 6)) - printf("Unicast"); - else if (!memcmp(mac, eb_mac_type_multicast, 6) && - !memcmp(mask, eb_msk_type_multicast, 6)) - printf("Multicast"); - else if (!memcmp(mac, eb_mac_type_broadcast, 6) && - !memcmp(mask, eb_msk_type_broadcast, 6)) - printf("Broadcast"); - else if (!memcmp(mac, eb_mac_type_bridge_group, 6) && - !memcmp(mask, eb_msk_type_bridge_group, 6)) - printf("BGA"); - else { - ebt_print_mac(mac); - if (!mac_all_ones(mask)) { - printf("/"); - ebt_print_mac(mask); - } - } + if (xtables_print_well_known_mac_and_mask(mac, mask)) + xtables_print_mac_and_mask(mac, mask); } static void add_logical_iniface(struct nftnl_rule *r, char *iface, uint32_t op) @@ -159,20 +126,16 @@ static int nft_bridge_add(struct nft_handle *h, if (fw->bitmask & EBT_ISOURCE) { op = nft_invflags2cmp(fw->invflags, EBT_ISOURCE); - add_payload(r, offsetof(struct ethhdr, h_source), 6, - NFT_PAYLOAD_LL_HEADER); - if (!mac_all_ones(fw->sourcemsk)) - add_bitwise(r, fw->sourcemsk, 6); - add_cmp_ptr(r, op, fw->sourcemac, 6); + add_addr(r, NFT_PAYLOAD_LL_HEADER, + offsetof(struct ethhdr, h_source), + fw->sourcemac, fw->sourcemsk, ETH_ALEN, op); } if (fw->bitmask & EBT_IDEST) { op = nft_invflags2cmp(fw->invflags, EBT_IDEST); - add_payload(r, offsetof(struct ethhdr, h_dest), 6, - NFT_PAYLOAD_LL_HEADER); - if (!mac_all_ones(fw->destmsk)) - add_bitwise(r, fw->destmsk, 6); - add_cmp_ptr(r, op, fw->destmac, 6); + add_addr(r, NFT_PAYLOAD_LL_HEADER, + offsetof(struct ethhdr, h_dest), + fw->destmac, fw->destmsk, ETH_ALEN, op); } if ((fw->bitmask & EBT_NOPROTO) == 0) { @@ -258,7 +221,8 @@ static void nft_bridge_parse_payload(struct nft_xt_ctx *ctx, memcpy(fw->destmsk, ctx->bitwise.mask, ETH_ALEN); ctx->flags &= ~NFT_XT_CTX_BITWISE; } else { - memset(&fw->destmsk, 0xff, ETH_ALEN); + memset(&fw->destmsk, 0xff, + min(ctx->payload.len, ETH_ALEN)); } fw->bitmask |= EBT_IDEST; break; @@ -272,7 +236,8 @@ static void nft_bridge_parse_payload(struct nft_xt_ctx *ctx, memcpy(fw->sourcemsk, ctx->bitwise.mask, ETH_ALEN); ctx->flags &= ~NFT_XT_CTX_BITWISE; } else { - memset(&fw->sourcemsk, 0xff, ETH_ALEN); + memset(&fw->sourcemsk, 0xff, + min(ctx->payload.len, ETH_ALEN)); } fw->bitmask |= EBT_ISOURCE; break; @@ -421,11 +386,20 @@ static struct nftnl_set *set_from_lookup_expr(struct nft_xt_ctx *ctx, const struct nftnl_expr *e) { const char *set_name = nftnl_expr_get_str(e, NFTNL_EXPR_LOOKUP_SET); + uint32_t set_id = nftnl_expr_get_u32(e, NFTNL_EXPR_LOOKUP_SET_ID); struct nftnl_set_list *slist; + struct nftnl_set *set; slist = nft_set_list_get(ctx->h, ctx->table, set_name); - if (slist) - return nftnl_set_list_lookup_byname(slist, set_name); + if (slist) { + set = nftnl_set_list_lookup_byname(slist, set_name); + if (set) + return set; + + set = nft_set_batch_lookup_byid(ctx->h, set_id); + if (set) + return set; + } return NULL; } @@ -747,41 +721,6 @@ static bool nft_bridge_is_same(const void *data_a, const void *data_b) return strcmp(a->in, b->in) == 0 && strcmp(a->out, b->out) == 0; } -static bool nft_bridge_rule_find(struct nft_handle *h, struct nftnl_rule *r, - void *data) -{ - struct iptables_command_state *cs = data; - struct iptables_command_state this = {}; - bool ret = false; - - nft_rule_to_ebtables_command_state(h, r, &this); - - DEBUGP("comparing with... "); - - if (!nft_bridge_is_same(cs, &this)) - goto out; - - if (!compare_matches(cs->matches, this.matches)) { - DEBUGP("Different matches\n"); - goto out; - } - - if (!compare_targets(cs->target, this.target)) { - DEBUGP("Different target\n"); - goto out; - } - - if (cs->jumpto != NULL && strcmp(cs->jumpto, this.jumpto) != 0) { - DEBUGP("Different verdict\n"); - goto out; - } - - ret = true; -out: - h->ops->clear_cs(&this); - return ret; -} - static int xlate_ebmatches(const struct iptables_command_state *cs, struct xt_xlate *xl) { int ret = 1, numeric = cs->options & OPT_NUMERIC; @@ -958,11 +897,9 @@ struct nft_family_ops nft_family_ops_bridge = { .print_header = nft_bridge_print_header, .print_rule = nft_bridge_print_rule, .save_rule = nft_bridge_save_rule, - .save_counters = save_counters, .save_chain = nft_bridge_save_chain, .post_parse = NULL, .rule_to_cs = nft_rule_to_ebtables_command_state, .clear_cs = ebt_cs_clean, - .rule_find = nft_bridge_rule_find, .xlate = nft_bridge_xlate, }; |