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335-v4.16-netfilter-nf_tables-add-single-table-list-for-all-fa.patch
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335-v4.16-netfilter-nf_tables-add-single-table-list-for-all-fa.patch
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From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 9 Jan 2018 02:38:03 +0100
Subject: [PATCH] netfilter: nf_tables: add single table list for all families
Place all existing user defined tables in struct net *, instead of
having one list per family. This saves us from one level of indentation
in netlink dump functions.
Place pointer to struct nft_af_info in struct nft_table temporarily, as
we still need this to put back reference module reference counter on
table removal.
This patch comes in preparation for the removal of struct nft_af_info.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -143,22 +143,22 @@ static inline void nft_data_debug(const
* struct nft_ctx - nf_tables rule/set context
*
* @net: net namespace
- * @afi: address family info
* @table: the table the chain is contained in
* @chain: the chain the rule is contained in
* @nla: netlink attributes
* @portid: netlink portID of the original message
* @seq: netlink sequence number
+ * @family: protocol family
* @report: notify via unicast netlink message
*/
struct nft_ctx {
struct net *net;
- struct nft_af_info *afi;
struct nft_table *table;
struct nft_chain *chain;
const struct nlattr * const *nla;
u32 portid;
u32 seq;
+ u8 family;
bool report;
};
@@ -945,6 +945,7 @@ unsigned int nft_do_chain(struct nft_pkt
* @use: number of chain references to this table
* @flags: table flag (see enum nft_table_flags)
* @genmask: generation mask
+ * @afinfo: address family info
* @name: name of the table
*/
struct nft_table {
@@ -957,6 +958,7 @@ struct nft_table {
u32 use;
u16 flags:14,
genmask:2;
+ struct nft_af_info *afi;
char *name;
};
@@ -966,13 +968,11 @@ struct nft_table {
* @list: used internally
* @family: address family
* @owner: module owner
- * @tables: used internally
*/
struct nft_af_info {
struct list_head list;
int family;
struct module *owner;
- struct list_head tables;
};
int nft_register_afinfo(struct net *, struct nft_af_info *);
--- a/include/net/netns/nftables.h
+++ b/include/net/netns/nftables.h
@@ -8,6 +8,7 @@ struct nft_af_info;
struct netns_nftables {
struct list_head af_info;
+ struct list_head tables;
struct list_head commit_list;
struct nft_af_info *ipv4;
struct nft_af_info *ipv6;
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -37,7 +37,6 @@ static LIST_HEAD(nf_tables_flowtables);
*/
int nft_register_afinfo(struct net *net, struct nft_af_info *afi)
{
- INIT_LIST_HEAD(&afi->tables);
nfnl_lock(NFNL_SUBSYS_NFTABLES);
list_add_tail_rcu(&afi->list, &net->nft.af_info);
nfnl_unlock(NFNL_SUBSYS_NFTABLES);
@@ -99,13 +98,13 @@ static void nft_ctx_init(struct nft_ctx
struct net *net,
const struct sk_buff *skb,
const struct nlmsghdr *nlh,
- struct nft_af_info *afi,
+ u8 family,
struct nft_table *table,
struct nft_chain *chain,
const struct nlattr * const *nla)
{
ctx->net = net;
- ctx->afi = afi;
+ ctx->family = family;
ctx->table = table;
ctx->chain = chain;
ctx->nla = nla;
@@ -429,30 +428,31 @@ static int nft_delflowtable(struct nft_c
* Tables
*/
-static struct nft_table *nft_table_lookup(const struct nft_af_info *afi,
+static struct nft_table *nft_table_lookup(const struct net *net,
const struct nlattr *nla,
- u8 genmask)
+ u8 family, u8 genmask)
{
struct nft_table *table;
- list_for_each_entry(table, &afi->tables, list) {
+ list_for_each_entry(table, &net->nft.tables, list) {
if (!nla_strcmp(nla, table->name) &&
+ table->afi->family == family &&
nft_active_genmask(table, genmask))
return table;
}
return NULL;
}
-static struct nft_table *nf_tables_table_lookup(const struct nft_af_info *afi,
+static struct nft_table *nf_tables_table_lookup(const struct net *net,
const struct nlattr *nla,
- u8 genmask)
+ u8 family, u8 genmask)
{
struct nft_table *table;
if (nla == NULL)
return ERR_PTR(-EINVAL);
- table = nft_table_lookup(afi, nla, genmask);
+ table = nft_table_lookup(net, nla, family, genmask);
if (table != NULL)
return table;
@@ -551,7 +551,7 @@ static void nf_tables_table_notify(const
goto err;
err = nf_tables_fill_table_info(skb, ctx->net, ctx->portid, ctx->seq,
- event, 0, ctx->afi->family, ctx->table);
+ event, 0, ctx->family, ctx->table);
if (err < 0) {
kfree_skb(skb);
goto err;
@@ -568,7 +568,6 @@ static int nf_tables_dump_tables(struct
struct netlink_callback *cb)
{
const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
- const struct nft_af_info *afi;
const struct nft_table *table;
unsigned int idx = 0, s_idx = cb->args[0];
struct net *net = sock_net(skb->sk);
@@ -577,30 +576,27 @@ static int nf_tables_dump_tables(struct
rcu_read_lock();
cb->seq = net->nft.base_seq;
- list_for_each_entry_rcu(afi, &net->nft.af_info, list) {
- if (family != NFPROTO_UNSPEC && family != afi->family)
+ list_for_each_entry_rcu(table, &net->nft.tables, list) {
+ if (family != NFPROTO_UNSPEC && family != table->afi->family)
continue;
- list_for_each_entry_rcu(table, &afi->tables, list) {
- if (idx < s_idx)
- goto cont;
- if (idx > s_idx)
- memset(&cb->args[1], 0,
- sizeof(cb->args) - sizeof(cb->args[0]));
- if (!nft_is_active(net, table))
- continue;
- if (nf_tables_fill_table_info(skb, net,
- NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NFT_MSG_NEWTABLE,
- NLM_F_MULTI,
- afi->family, table) < 0)
- goto done;
+ if (idx < s_idx)
+ goto cont;
+ if (idx > s_idx)
+ memset(&cb->args[1], 0,
+ sizeof(cb->args) - sizeof(cb->args[0]));
+ if (!nft_is_active(net, table))
+ continue;
+ if (nf_tables_fill_table_info(skb, net,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq,
+ NFT_MSG_NEWTABLE, NLM_F_MULTI,
+ table->afi->family, table) < 0)
+ goto done;
- nl_dump_check_consistent(cb, nlmsg_hdr(skb));
+ nl_dump_check_consistent(cb, nlmsg_hdr(skb));
cont:
- idx++;
- }
+ idx++;
}
done:
rcu_read_unlock();
@@ -632,7 +628,8 @@ static int nf_tables_gettable(struct net
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_TABLE_NAME], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_TABLE_NAME], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -763,7 +760,7 @@ static int nf_tables_newtable(struct net
return PTR_ERR(afi);
name = nla[NFTA_TABLE_NAME];
- table = nf_tables_table_lookup(afi, name, genmask);
+ table = nf_tables_table_lookup(net, name, afi->family, genmask);
if (IS_ERR(table)) {
if (PTR_ERR(table) != -ENOENT)
return PTR_ERR(table);
@@ -773,7 +770,7 @@ static int nf_tables_newtable(struct net
if (nlh->nlmsg_flags & NLM_F_REPLACE)
return -EOPNOTSUPP;
- nft_ctx_init(&ctx, net, skb, nlh, afi, table, NULL, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
return nf_tables_updtable(&ctx);
}
@@ -800,14 +797,15 @@ static int nf_tables_newtable(struct net
INIT_LIST_HEAD(&table->sets);
INIT_LIST_HEAD(&table->objects);
INIT_LIST_HEAD(&table->flowtables);
+ table->afi = afi;
table->flags = flags;
- nft_ctx_init(&ctx, net, skb, nlh, afi, table, NULL, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
err = nft_trans_table_add(&ctx, NFT_MSG_NEWTABLE);
if (err < 0)
goto err4;
- list_add_tail_rcu(&table->list, &afi->tables);
+ list_add_tail_rcu(&table->list, &net->nft.tables);
return 0;
err4:
kfree(table->name);
@@ -881,30 +879,28 @@ out:
static int nft_flush(struct nft_ctx *ctx, int family)
{
- struct nft_af_info *afi;
struct nft_table *table, *nt;
const struct nlattr * const *nla = ctx->nla;
int err = 0;
- list_for_each_entry(afi, &ctx->net->nft.af_info, list) {
- if (family != AF_UNSPEC && afi->family != family)
+ list_for_each_entry_safe(table, nt, &ctx->net->nft.tables, list) {
+ if (family != AF_UNSPEC && table->afi->family != family)
continue;
- ctx->afi = afi;
- list_for_each_entry_safe(table, nt, &afi->tables, list) {
- if (!nft_is_active_next(ctx->net, table))
- continue;
+ ctx->family = table->afi->family;
- if (nla[NFTA_TABLE_NAME] &&
- nla_strcmp(nla[NFTA_TABLE_NAME], table->name) != 0)
- continue;
+ if (!nft_is_active_next(ctx->net, table))
+ continue;
- ctx->table = table;
+ if (nla[NFTA_TABLE_NAME] &&
+ nla_strcmp(nla[NFTA_TABLE_NAME], table->name) != 0)
+ continue;
- err = nft_flush_table(ctx);
- if (err < 0)
- goto out;
- }
+ ctx->table = table;
+
+ err = nft_flush_table(ctx);
+ if (err < 0)
+ goto out;
}
out:
return err;
@@ -922,7 +918,7 @@ static int nf_tables_deltable(struct net
int family = nfmsg->nfgen_family;
struct nft_ctx ctx;
- nft_ctx_init(&ctx, net, skb, nlh, NULL, NULL, NULL, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, 0, NULL, NULL, nla);
if (family == AF_UNSPEC || nla[NFTA_TABLE_NAME] == NULL)
return nft_flush(&ctx, family);
@@ -930,7 +926,8 @@ static int nf_tables_deltable(struct net
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_TABLE_NAME], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_TABLE_NAME], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -938,7 +935,7 @@ static int nf_tables_deltable(struct net
table->use > 0)
return -EBUSY;
- ctx.afi = afi;
+ ctx.family = afi->family;
ctx.table = table;
return nft_flush_table(&ctx);
@@ -950,7 +947,7 @@ static void nf_tables_table_destroy(stru
kfree(ctx->table->name);
kfree(ctx->table);
- module_put(ctx->afi->owner);
+ module_put(ctx->table->afi->owner);
}
int nft_register_chain_type(const struct nf_chain_type *ctype)
@@ -1151,7 +1148,7 @@ static void nf_tables_chain_notify(const
goto err;
err = nf_tables_fill_chain_info(skb, ctx->net, ctx->portid, ctx->seq,
- event, 0, ctx->afi->family, ctx->table,
+ event, 0, ctx->family, ctx->table,
ctx->chain);
if (err < 0) {
kfree_skb(skb);
@@ -1169,7 +1166,6 @@ static int nf_tables_dump_chains(struct
struct netlink_callback *cb)
{
const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
- const struct nft_af_info *afi;
const struct nft_table *table;
const struct nft_chain *chain;
unsigned int idx = 0, s_idx = cb->args[0];
@@ -1179,31 +1175,30 @@ static int nf_tables_dump_chains(struct
rcu_read_lock();
cb->seq = net->nft.base_seq;
- list_for_each_entry_rcu(afi, &net->nft.af_info, list) {
- if (family != NFPROTO_UNSPEC && family != afi->family)
+ list_for_each_entry_rcu(table, &net->nft.tables, list) {
+ if (family != NFPROTO_UNSPEC && family != table->afi->family)
continue;
- list_for_each_entry_rcu(table, &afi->tables, list) {
- list_for_each_entry_rcu(chain, &table->chains, list) {
- if (idx < s_idx)
- goto cont;
- if (idx > s_idx)
- memset(&cb->args[1], 0,
- sizeof(cb->args) - sizeof(cb->args[0]));
- if (!nft_is_active(net, chain))
- continue;
- if (nf_tables_fill_chain_info(skb, net,
- NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NFT_MSG_NEWCHAIN,
- NLM_F_MULTI,
- afi->family, table, chain) < 0)
- goto done;
+ list_for_each_entry_rcu(chain, &table->chains, list) {
+ if (idx < s_idx)
+ goto cont;
+ if (idx > s_idx)
+ memset(&cb->args[1], 0,
+ sizeof(cb->args) - sizeof(cb->args[0]));
+ if (!nft_is_active(net, chain))
+ continue;
+ if (nf_tables_fill_chain_info(skb, net,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq,
+ NFT_MSG_NEWCHAIN,
+ NLM_F_MULTI,
+ table->afi->family, table,
+ chain) < 0)
+ goto done;
- nl_dump_check_consistent(cb, nlmsg_hdr(skb));
+ nl_dump_check_consistent(cb, nlmsg_hdr(skb));
cont:
- idx++;
- }
+ idx++;
}
}
done:
@@ -1237,7 +1232,8 @@ static int nf_tables_getchain(struct net
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_CHAIN_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -1347,8 +1343,8 @@ struct nft_chain_hook {
static int nft_chain_parse_hook(struct net *net,
const struct nlattr * const nla[],
- struct nft_af_info *afi,
- struct nft_chain_hook *hook, bool create)
+ struct nft_chain_hook *hook, u8 family,
+ bool create)
{
struct nlattr *ha[NFTA_HOOK_MAX + 1];
const struct nf_chain_type *type;
@@ -1367,10 +1363,10 @@ static int nft_chain_parse_hook(struct n
hook->num = ntohl(nla_get_be32(ha[NFTA_HOOK_HOOKNUM]));
hook->priority = ntohl(nla_get_be32(ha[NFTA_HOOK_PRIORITY]));
- type = chain_type[afi->family][NFT_CHAIN_T_DEFAULT];
+ type = chain_type[family][NFT_CHAIN_T_DEFAULT];
if (nla[NFTA_CHAIN_TYPE]) {
type = nf_tables_chain_type_lookup(nla[NFTA_CHAIN_TYPE],
- afi->family, create);
+ family, create);
if (IS_ERR(type))
return PTR_ERR(type);
}
@@ -1382,7 +1378,7 @@ static int nft_chain_parse_hook(struct n
hook->type = type;
hook->dev = NULL;
- if (afi->family == NFPROTO_NETDEV) {
+ if (family == NFPROTO_NETDEV) {
char ifname[IFNAMSIZ];
if (!ha[NFTA_HOOK_DEV]) {
@@ -1417,7 +1413,6 @@ static int nf_tables_addchain(struct nft
{
const struct nlattr * const *nla = ctx->nla;
struct nft_table *table = ctx->table;
- struct nft_af_info *afi = ctx->afi;
struct nft_base_chain *basechain;
struct nft_stats __percpu *stats;
struct net *net = ctx->net;
@@ -1431,7 +1426,7 @@ static int nf_tables_addchain(struct nft
struct nft_chain_hook hook;
struct nf_hook_ops *ops;
- err = nft_chain_parse_hook(net, nla, afi, &hook, create);
+ err = nft_chain_parse_hook(net, nla, &hook, family, create);
if (err < 0)
return err;
@@ -1523,7 +1518,7 @@ static int nf_tables_updchain(struct nft
if (!nft_is_base_chain(chain))
return -EBUSY;
- err = nft_chain_parse_hook(ctx->net, nla, ctx->afi, &hook,
+ err = nft_chain_parse_hook(ctx->net, nla, &hook, ctx->family,
create);
if (err < 0)
return err;
@@ -1633,7 +1628,8 @@ static int nf_tables_newchain(struct net
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_CHAIN_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -1673,7 +1669,7 @@ static int nf_tables_newchain(struct net
}
}
- nft_ctx_init(&ctx, net, skb, nlh, afi, table, chain, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, chain, nla);
if (chain != NULL) {
if (nlh->nlmsg_flags & NLM_F_EXCL)
@@ -1707,7 +1703,8 @@ static int nf_tables_delchain(struct net
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_CHAIN_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -1719,7 +1716,7 @@ static int nf_tables_delchain(struct net
chain->use > 0)
return -EBUSY;
- nft_ctx_init(&ctx, net, skb, nlh, afi, table, chain, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, chain, nla);
use = chain->use;
list_for_each_entry(rule, &chain->rules, list) {
@@ -1887,7 +1884,7 @@ static int nf_tables_expr_parse(const st
if (err < 0)
return err;
- type = nft_expr_type_get(ctx->afi->family, tb[NFTA_EXPR_NAME]);
+ type = nft_expr_type_get(ctx->family, tb[NFTA_EXPR_NAME]);
if (IS_ERR(type))
return PTR_ERR(type);
@@ -2115,7 +2112,7 @@ static void nf_tables_rule_notify(const
goto err;
err = nf_tables_fill_rule_info(skb, ctx->net, ctx->portid, ctx->seq,
- event, 0, ctx->afi->family, ctx->table,
+ event, 0, ctx->family, ctx->table,
ctx->chain, rule);
if (err < 0) {
kfree_skb(skb);
@@ -2139,7 +2136,6 @@ static int nf_tables_dump_rules(struct s
{
const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
const struct nft_rule_dump_ctx *ctx = cb->data;
- const struct nft_af_info *afi;
const struct nft_table *table;
const struct nft_chain *chain;
const struct nft_rule *rule;
@@ -2150,39 +2146,37 @@ static int nf_tables_dump_rules(struct s
rcu_read_lock();
cb->seq = net->nft.base_seq;
- list_for_each_entry_rcu(afi, &net->nft.af_info, list) {
- if (family != NFPROTO_UNSPEC && family != afi->family)
+ list_for_each_entry_rcu(table, &net->nft.tables, list) {
+ if (family != NFPROTO_UNSPEC && family != table->afi->family)
+ continue;
+
+ if (ctx && ctx->table && strcmp(ctx->table, table->name) != 0)
continue;
- list_for_each_entry_rcu(table, &afi->tables, list) {
- if (ctx && ctx->table &&
- strcmp(ctx->table, table->name) != 0)
+ list_for_each_entry_rcu(chain, &table->chains, list) {
+ if (ctx && ctx->chain &&
+ strcmp(ctx->chain, chain->name) != 0)
continue;
- list_for_each_entry_rcu(chain, &table->chains, list) {
- if (ctx && ctx->chain &&
- strcmp(ctx->chain, chain->name) != 0)
- continue;
-
- list_for_each_entry_rcu(rule, &chain->rules, list) {
- if (!nft_is_active(net, rule))
- goto cont;
- if (idx < s_idx)
- goto cont;
- if (idx > s_idx)
- memset(&cb->args[1], 0,
- sizeof(cb->args) - sizeof(cb->args[0]));
- if (nf_tables_fill_rule_info(skb, net, NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NFT_MSG_NEWRULE,
- NLM_F_MULTI | NLM_F_APPEND,
- afi->family, table, chain, rule) < 0)
- goto done;
+ list_for_each_entry_rcu(rule, &chain->rules, list) {
+ if (!nft_is_active(net, rule))
+ goto cont;
+ if (idx < s_idx)
+ goto cont;
+ if (idx > s_idx)
+ memset(&cb->args[1], 0,
+ sizeof(cb->args) - sizeof(cb->args[0]));
+ if (nf_tables_fill_rule_info(skb, net, NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq,
+ NFT_MSG_NEWRULE,
+ NLM_F_MULTI | NLM_F_APPEND,
+ table->afi->family,
+ table, chain, rule) < 0)
+ goto done;
- nl_dump_check_consistent(cb, nlmsg_hdr(skb));
+ nl_dump_check_consistent(cb, nlmsg_hdr(skb));
cont:
- idx++;
- }
+ idx++;
}
}
}
@@ -2260,7 +2254,8 @@ static int nf_tables_getrule(struct net
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_RULE_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -2345,7 +2340,8 @@ static int nf_tables_newrule(struct net
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_RULE_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -2384,7 +2380,7 @@ static int nf_tables_newrule(struct net
return PTR_ERR(old_rule);
}
- nft_ctx_init(&ctx, net, skb, nlh, afi, table, chain, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, chain, nla);
n = 0;
size = 0;
@@ -2517,7 +2513,8 @@ static int nf_tables_delrule(struct net
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_RULE_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -2528,7 +2525,7 @@ static int nf_tables_delrule(struct net
return PTR_ERR(chain);
}
- nft_ctx_init(&ctx, net, skb, nlh, afi, table, chain, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, chain, nla);
if (chain) {
if (nla[NFTA_RULE_HANDLE]) {
@@ -2726,13 +2723,13 @@ static int nft_ctx_init_from_setattr(str
if (afi == NULL)
return -EAFNOSUPPORT;
- table = nf_tables_table_lookup(afi, nla[NFTA_SET_TABLE],
- genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_SET_TABLE],
+ afi->family, genmask);
if (IS_ERR(table))
return PTR_ERR(table);
}
- nft_ctx_init(ctx, net, skb, nlh, afi, table, NULL, nla);
+ nft_ctx_init(ctx, net, skb, nlh, afi->family, table, NULL, nla);
return 0;
}
@@ -2860,7 +2857,7 @@ static int nf_tables_fill_set(struct sk_
goto nla_put_failure;
nfmsg = nlmsg_data(nlh);
- nfmsg->nfgen_family = ctx->afi->family;
+ nfmsg->nfgen_family = ctx->family;
nfmsg->version = NFNETLINK_V0;
nfmsg->res_id = htons(ctx->net->nft.base_seq & 0xffff);
@@ -2952,10 +2949,8 @@ static int nf_tables_dump_sets(struct sk
{
const struct nft_set *set;
unsigned int idx, s_idx = cb->args[0];
- struct nft_af_info *afi;
struct nft_table *table, *cur_table = (struct nft_table *)cb->args[2];
struct net *net = sock_net(skb->sk);
- int cur_family = cb->args[3];
struct nft_ctx *ctx = cb->data, ctx_set;
if (cb->args[1])
@@ -2964,51 +2959,44 @@ static int nf_tables_dump_sets(struct sk
rcu_read_lock();
cb->seq = net->nft.base_seq;
- list_for_each_entry_rcu(afi, &net->nft.af_info, list) {
- if (ctx->afi && ctx->afi != afi)
+ list_for_each_entry_rcu(table, &net->nft.tables, list) {
+ if (ctx->family != NFPROTO_UNSPEC &&
+ ctx->family != table->afi->family)
continue;
- if (cur_family) {
- if (afi->family != cur_family)
- continue;
+ if (ctx->table && ctx->table != table)
+ continue;
- cur_family = 0;
- }
- list_for_each_entry_rcu(table, &afi->tables, list) {
- if (ctx->table && ctx->table != table)
+ if (cur_table) {
+ if (cur_table != table)
continue;
- if (cur_table) {
- if (cur_table != table)
- continue;
+ cur_table = NULL;
+ }
+ idx = 0;
+ list_for_each_entry_rcu(set, &table->sets, list) {
+ if (idx < s_idx)
+ goto cont;
+ if (!nft_is_active(net, set))
+ goto cont;
- cur_table = NULL;
+ ctx_set = *ctx;
+ ctx_set.table = table;
+ ctx_set.family = table->afi->family;
+
+ if (nf_tables_fill_set(skb, &ctx_set, set,
+ NFT_MSG_NEWSET,
+ NLM_F_MULTI) < 0) {
+ cb->args[0] = idx;
+ cb->args[2] = (unsigned long) table;
+ goto done;
}
- idx = 0;
- list_for_each_entry_rcu(set, &table->sets, list) {
- if (idx < s_idx)
- goto cont;
- if (!nft_is_active(net, set))
- goto cont;
-
- ctx_set = *ctx;
- ctx_set.table = table;
- ctx_set.afi = afi;
- if (nf_tables_fill_set(skb, &ctx_set, set,
- NFT_MSG_NEWSET,
- NLM_F_MULTI) < 0) {
- cb->args[0] = idx;
- cb->args[2] = (unsigned long) table;
- cb->args[3] = afi->family;
- goto done;
- }
- nl_dump_check_consistent(cb, nlmsg_hdr(skb));
+ nl_dump_check_consistent(cb, nlmsg_hdr(skb));
cont:
- idx++;
- }
- if (s_idx)
- s_idx = 0;
+ idx++;
}
+ if (s_idx)
+ s_idx = 0;
}
cb->args[1] = 1;
done:
@@ -3221,11 +3209,12 @@ static int nf_tables_newset(struct net *
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_SET_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_SET_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
- nft_ctx_init(&ctx, net, skb, nlh, afi, table, NULL, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
set = nf_tables_set_lookup(table, nla[NFTA_SET_NAME], genmask);
if (IS_ERR(set)) {
@@ -3494,12 +3483,12 @@ static int nft_ctx_init_from_elemattr(st
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_SET_ELEM_LIST_TABLE],
- genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_SET_ELEM_LIST_TABLE],
+ afi->family, genmask);
if (IS_ERR(table))
return PTR_ERR(table);
- nft_ctx_init(ctx, net, skb, nlh, afi, table, NULL, nla);
+ nft_ctx_init(ctx, net, skb, nlh, afi->family, table, NULL, nla);
return 0;
}
@@ -3604,7 +3593,6 @@ static int nf_tables_dump_set(struct sk_
{
struct nft_set_dump_ctx *dump_ctx = cb->data;
struct net *net = sock_net(skb->sk);
- struct nft_af_info *afi;
struct nft_table *table;
struct nft_set *set;
struct nft_set_dump_args args;
@@ -3616,21 +3604,19 @@ static int nf_tables_dump_set(struct sk_
int event;
rcu_read_lock();
- list_for_each_entry_rcu(afi, &net->nft.af_info, list) {
- if (afi != dump_ctx->ctx.afi)
+ list_for_each_entry_rcu(table, &net->nft.tables, list) {
+ if (dump_ctx->ctx.family != NFPROTO_UNSPEC &&
+ dump_ctx->ctx.family != table->afi->family)
continue;
- list_for_each_entry_rcu(table, &afi->tables, list) {
- if (table != dump_ctx->ctx.table)
- continue;
+ if (table != dump_ctx->ctx.table)
+ continue;
- list_for_each_entry_rcu(set, &table->sets, list) {
- if (set == dump_ctx->set) {
- set_found = true;
- break;
- }
+ list_for_each_entry_rcu(set, &table->sets, list) {
+ if (set == dump_ctx->set) {
+ set_found = true;
+ break;
}
- break;
}
break;
}
@@ -3650,7 +3636,7 @@ static int nf_tables_dump_set(struct sk_
goto nla_put_failure;
nfmsg = nlmsg_data(nlh);
- nfmsg->nfgen_family = afi->family;
+ nfmsg->nfgen_family = table->afi->family;
nfmsg->version = NFNETLINK_V0;
nfmsg->res_id = htons(net->nft.base_seq & 0xffff);
@@ -3752,7 +3738,7 @@ static int nf_tables_fill_setelem_info(s
goto nla_put_failure;
nfmsg = nlmsg_data(nlh);
- nfmsg->nfgen_family = ctx->afi->family;
+ nfmsg->nfgen_family = ctx->family;
nfmsg->version = NFNETLINK_V0;
nfmsg->res_id = htons(ctx->net->nft.base_seq & 0xffff);
@@ -3996,7 +3982,7 @@ static int nft_add_set_elem(struct nft_c
list_for_each_entry(binding, &set->bindings, list) {
struct nft_ctx bind_ctx = {
.net = ctx->net,
- .afi = ctx->afi,
+ .family = ctx->family,
.table = ctx->table,
.chain = (struct nft_chain *)binding->chain,
};
@@ -4548,7 +4534,8 @@ static int nf_tables_newobj(struct net *
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_OBJ_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_OBJ_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -4566,7 +4553,7 @@ static int nf_tables_newobj(struct net *
return 0;
}
- nft_ctx_init(&ctx, net, skb, nlh, afi, table, NULL, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
type = nft_obj_type_get(objtype);
if (IS_ERR(type))
@@ -4643,7 +4630,6 @@ struct nft_obj_filter {
static int nf_tables_dump_obj(struct sk_buff *skb, struct netlink_callback *cb)
{
const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
- const struct nft_af_info *afi;
const struct nft_table *table;
unsigned int idx = 0, s_idx = cb->args[0];
struct nft_obj_filter *filter = cb->data;
@@ -4658,38 +4644,37 @@ static int nf_tables_dump_obj(struct sk_
rcu_read_lock();
cb->seq = net->nft.base_seq;
- list_for_each_entry_rcu(afi, &net->nft.af_info, list) {
- if (family != NFPROTO_UNSPEC && family != afi->family)
+ list_for_each_entry_rcu(table, &net->nft.tables, list) {
+ if (family != NFPROTO_UNSPEC && family != table->afi->family)
continue;
- list_for_each_entry_rcu(table, &afi->tables, list) {
- list_for_each_entry_rcu(obj, &table->objects, list) {
- if (!nft_is_active(net, obj))
- goto cont;
- if (idx < s_idx)
- goto cont;
- if (idx > s_idx)
- memset(&cb->args[1], 0,
- sizeof(cb->args) - sizeof(cb->args[0]));
- if (filter && filter->table &&
- strcmp(filter->table, table->name))
- goto cont;
- if (filter &&
- filter->type != NFT_OBJECT_UNSPEC &&
- obj->ops->type->type != filter->type)
- goto cont;
+ list_for_each_entry_rcu(obj, &table->objects, list) {
+ if (!nft_is_active(net, obj))
+ goto cont;
+ if (idx < s_idx)
+ goto cont;
+ if (idx > s_idx)
+ memset(&cb->args[1], 0,
+ sizeof(cb->args) - sizeof(cb->args[0]));
+ if (filter && filter->table &&
+ strcmp(filter->table, table->name))
+ goto cont;
+ if (filter &&
+ filter->type != NFT_OBJECT_UNSPEC &&
+ obj->ops->type->type != filter->type)
+ goto cont;
- if (nf_tables_fill_obj_info(skb, net, NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NFT_MSG_NEWOBJ,
- NLM_F_MULTI | NLM_F_APPEND,
- afi->family, table, obj, reset) < 0)
- goto done;
+ if (nf_tables_fill_obj_info(skb, net, NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq,
+ NFT_MSG_NEWOBJ,
+ NLM_F_MULTI | NLM_F_APPEND,
+ table->afi->family, table,
+ obj, reset) < 0)
+ goto done;
- nl_dump_check_consistent(cb, nlmsg_hdr(skb));
+ nl_dump_check_consistent(cb, nlmsg_hdr(skb));
cont:
- idx++;
- }
+ idx++;
}
}
done:
@@ -4776,7 +4761,8 @@ static int nf_tables_getobj(struct net *
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_OBJ_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_OBJ_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -4836,7 +4822,8 @@ static int nf_tables_delobj(struct net *
if (IS_ERR(afi))
return PTR_ERR(afi);
- table = nf_tables_table_lookup(afi, nla[NFTA_OBJ_TABLE], genmask);
+ table = nf_tables_table_lookup(net, nla[NFTA_OBJ_TABLE], afi->family,
+ genmask);
if (IS_ERR(table))
return PTR_ERR(table);
@@ -4847,7 +4834,7 @@ static int nf_tables_delobj(struct net *
if (obj->use > 0)
return -EBUSY;
- nft_ctx_init(&ctx, net, skb, nlh, afi, table, NULL, nla);
+ nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
return nft_delobj(&ctx, obj);
}
@@ -4885,7 +4872,7 @@ static void nf_tables_obj_notify(const s
struct nft_object *obj, int event)
{
nft_obj_notify(ctx->net, ctx->table, obj, ctx->portid, ctx->seq, event,
- ctx->afi->family, ctx->report, GFP_KERNEL);
+ ctx->family, ctx->report, GFP_KERNEL);
}
/*