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authorLinus Torvalds <torvalds@linux-foundation.org>2024-07-16 19:28:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-07-16 19:28:34 -0700
commit51835949dda3783d4639cfa74ce13a3c9829de00 (patch)
tree2b593de5eba6ecc73f7c58fc65fdaffae45c7323 /net/netfilter/nf_tables_api.c
parent0434dbe32053d07d658165be681505120c6b1abc (diff)
parent77ae5e5b00720372af2860efdc4bc652ac682696 (diff)
Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextHEADmaster
Pull networking updates from Jakub Kicinski: "Not much excitement - a handful of large patchsets (devmem among them) did not make it in time. Core & protocols: - Use local_lock in addition to local_bh_disable() to protect per-CPU resources in networking, a step closer for local_bh_disable() not to act as a big lock on PREEMPT_RT - Use flex array for netdevice priv area, ensure its cache alignment - Add a sysctl knob to allow user to specify a default rto_min at socket init time. Bit of a big hammer but multiple companies were independently carrying such patch downstream so clearly it's useful - Support scheduling transmission of packets based on CLOCK_TAI - Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned off using cpusets - Support multiple L2TPv3 UDP tunnels using the same 5-tuple address - Allow configuration of multipath hash seed, to both allow synchronizing hashing of two routers, and preventing partial accidental sync - Improve TCP compliance with RFC 9293 for simultaneous connect() - Support sending NAT keepalives in IPsec ESP in UDP states. Userspace IKE daemon had to do this before, but the kernel can better keep track of it - Support sending supervision HSR frames with MAC addresses stored in ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled - Introduce IPPROTO_SMC for selecting SMC when socket is created - Allow UDP GSO transmit from devices with no checksum offload - openvswitch: add packet sampling via psample, separating the sampled traffic from "upcall" packets sent to user space for forwarding - nf_tables: shrink memory consumption for transaction objects Things we sprinkled into general kernel code: - Power Sequencing subsystem (used by Qualcomm Bluetooth driver for QCA6390) [ Already merged separately - Linus ] - Add IRQ information in sysfs for auxiliary bus - Introduce guard definition for local_lock - Add aligned flavor of __cacheline_group_{begin, end}() markings for grouping fields in structures BPF: - Notify user space (via epoll) when a struct_ops object is getting detached/unregistered - Add new kfuncs for a generic, open-coded bits iterator - Enable BPF programs to declare arrays of kptr, bpf_rb_root, and bpf_list_head - Support resilient split BTF which cuts down on duplication and makes BTF as compact as possible WRT BTF from modules - Add support for dumping kfunc prototypes from BTF which enables both detecting as well as dumping compilable prototypes for kfuncs - riscv64 BPF JIT improvements in particular to add 12-argument support for BPF trampolines and to utilize bpf_prog_pack for the latter - Add the capability to offload the netfilter flowtable in XDP layer through kfuncs Driver API: - Allow users to configure IRQ tresholds between which automatic IRQ moderation can choose - Expand Power Sourcing (PoE) status with power, class and failure reason. Support setting power limits - Track additional RSS contexts in the core, make sure configuration changes don't break them - Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated ESP data paths - Support updating firmware on SFP modules Tests and tooling: - mptcp: use net/lib.sh to manage netns - TCP-AO and TCP-MD5: replace debug prints used by tests with tracepoints - openvswitch: make test self-contained (don't depend on OvS CLI tools) Drivers: - Ethernet high-speed NICs: - Broadcom (bnxt): - increase the max total outstanding PTP TX packets to 4 - add timestamping statistics support - implement netdev_queue_mgmt_ops - support new RSS context API - Intel (100G, ice, idpf): - implement FEC statistics and dumping signal quality indicators - support E825C products (with 56Gbps PHYs) - nVidia/Mellanox: - support HW-GRO - mlx4/mlx5: support per-queue statistics via netlink - obey the max number of EQs setting in sub-functions - AMD/Solarflare: - support new RSS context API - AMD/Pensando: - ionic: rework fix for doorbell miss to lower overhead and skip it on new HW - Wangxun: - txgbe: support Flow Director perfect filters - Ethernet NICs consumer, embedded and virtual: - Add driver for Tehuti Networks TN40xx chips - Add driver for Meta's internal NIC chips - Add driver for Ethernet MAC on Airoha EN7581 SoCs - Add driver for Renesas Ethernet-TSN devices - Google cloud vNIC: - flow steering support - Microsoft vNIC: - support page sizes other than 4KB on ARM64 - vmware vNIC: - support latency measurement (update to version 9) - VirtIO net: - support for Byte Queue Limits - support configuring thresholds for automatic IRQ moderation - support for AF_XDP Rx zero-copy - Synopsys (stmmac): - support for STM32MP13 SoC - let platforms select the right PCS implementation - TI: - icssg-prueth: add multicast filtering support - icssg-prueth: enable PTP timestamping and PPS - Renesas: - ravb: improve Rx performance 30-400% by using page pool, theaded NAPI and timer-based IRQ coalescing - ravb: add MII support for R-Car V4M - Cadence (macb): - macb: add ARP support to Wake-On-LAN - Cortina: - use phylib for RX and TX pause configuration - Ethernet switches: - nVidia/Mellanox: - support configuration of multipath hash seed - report more accurate max MTU - use page_pool to improve Rx performance - MediaTek: - mt7530: add support for bridge port isolation - Qualcomm: - qca8k: add support for bridge port isolation - Microchip: - lan9371/2: add 100BaseTX PHY support - NXP: - vsc73xx: implement VLAN operations - Ethernet PHYs: - aquantia: enable support for aqr115c - aquantia: add support for PHY LEDs - realtek: add support for rtl8224 2.5Gbps PHY - xpcs: add memory-mapped device support - add BroadR-Reach link mode and support in Broadcom's PHY driver - CAN: - add document for ISO 15765-2 protocol support - mcp251xfd: workaround for erratum DS80000789E, use timestamps to catch when device returns incorrect FIFO status - WiFi: - mac80211/cfg80211: - parse Transmit Power Envelope (TPE) data in mac80211 instead of in drivers - improvements for 6 GHz regulatory flexibility - multi-link improvements - support multiple radios per wiphy - remove DEAUTH_NEED_MGD_TX_PREP flag - Intel (iwlwifi): - bump FW API to 91 for BZ/SC devices - report 64-bit radiotap timestamp - enable P2P low latency by default - handle Transmit Power Envelope (TPE) advertised by AP - remove support for older FW for new devices - fast resume (keeping the device configured) - mvm: re-enable Multi-Link Operation (MLO) - aggregation (A-MSDU) optimizations - MediaTek (mt76): - mt7925 Multi-Link Operation (MLO) support - Qualcomm (ath10k): - LED support for various chipsets - Qualcomm (ath12k): - remove unsupported Tx monitor handling - support channel 2 in 6 GHz band - support Spatial Multiplexing Power Save (SMPS) in 6 GHz band - supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID Advertisements (EMA) - support dynamic VLAN - add panic handler for resetting the firmware state - DebugFS support for datapath statistics - WCN7850: support for Wake on WLAN - Microchip (wilc1000): - read MAC address during probe to make it visible to user space - suspend/resume improvements - TI (wl18xx): - support newer firmware versions - RealTek (rtw89): - preparation for RTL8852BE-VT support - Wake on WLAN support for WiFi 6 chips - 36-bit PCI DMA support - RealTek (rtlwifi): - RTL8192DU support - Broadcom (brcmfmac): - Management Frame Protection support (to enable WPA3) - Bluetooth: - qualcomm: use the power sequencer for QCA6390 - btusb: mediatek: add ISO data transmission functions - hci_bcm4377: add BCM4388 support - btintel: add support for BlazarU core - btintel: add support for Whale Peak2 - btnxpuart: add support for AW693 A1 chipset - btnxpuart: add support for IW615 chipset - btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591" * tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits) eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering" tcp: Replace strncpy() with strscpy() wifi: ath12k: fix build vs old compiler tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child(). eth: fbnic: Write the TCAM tables used for RSS control and Rx to host eth: fbnic: Add L2 address programming eth: fbnic: Add basic Rx handling eth: fbnic: Add basic Tx handling eth: fbnic: Add link detection eth: fbnic: Add initial messaging to notify FW of our presence eth: fbnic: Implement Rx queue alloc/start/stop/free eth: fbnic: Implement Tx queue alloc/start/stop/free eth: fbnic: Allocate a netdevice and napi vectors with queues eth: fbnic: Add FW communication mechanism eth: fbnic: Add message parsing for FW messages eth: fbnic: Add register init to set PCIe/Ethernet device config eth: fbnic: Allocate core device specific structures and devlink interface eth: fbnic: Add scaffolding for Meta's NIC driver PCI: Add Meta Platforms vendor ID net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK ...
Diffstat (limited to 'net/netfilter/nf_tables_api.c')
-rw-r--r--net/netfilter/nf_tables_api.c411
1 files changed, 244 insertions, 167 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 91cc3a81ba8f..481ee78e77bc 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -153,14 +153,18 @@ static struct nft_trans *nft_trans_alloc_gfp(const struct nft_ctx *ctx,
{
struct nft_trans *trans;
- trans = kzalloc(sizeof(struct nft_trans) + size, gfp);
+ trans = kzalloc(size, gfp);
if (trans == NULL)
return NULL;
INIT_LIST_HEAD(&trans->list);
- INIT_LIST_HEAD(&trans->binding_list);
trans->msg_type = msg_type;
- trans->ctx = *ctx;
+
+ trans->net = ctx->net;
+ trans->table = ctx->table;
+ trans->seq = ctx->seq;
+ trans->flags = ctx->flags;
+ trans->report = ctx->report;
return trans;
}
@@ -171,10 +175,26 @@ static struct nft_trans *nft_trans_alloc(const struct nft_ctx *ctx,
return nft_trans_alloc_gfp(ctx, msg_type, size, GFP_KERNEL);
}
+static struct nft_trans_binding *nft_trans_get_binding(struct nft_trans *trans)
+{
+ switch (trans->msg_type) {
+ case NFT_MSG_NEWCHAIN:
+ case NFT_MSG_NEWSET:
+ return container_of(trans, struct nft_trans_binding, nft_trans);
+ }
+
+ return NULL;
+}
+
static void nft_trans_list_del(struct nft_trans *trans)
{
+ struct nft_trans_binding *trans_binding;
+
list_del(&trans->list);
- list_del(&trans->binding_list);
+
+ trans_binding = nft_trans_get_binding(trans);
+ if (trans_binding)
+ list_del(&trans_binding->binding_list);
}
static void nft_trans_destroy(struct nft_trans *trans)
@@ -236,7 +256,7 @@ static void __nft_chain_trans_bind(const struct nft_ctx *ctx,
nft_trans_chain_bound(trans) = bind;
break;
case NFT_MSG_NEWRULE:
- if (trans->ctx.chain == chain)
+ if (nft_trans_rule_chain(trans) == chain)
nft_trans_rule_bound(trans) = bind;
break;
}
@@ -372,21 +392,26 @@ static void nf_tables_unregister_hook(struct net *net,
static void nft_trans_commit_list_add_tail(struct net *net, struct nft_trans *trans)
{
struct nftables_pernet *nft_net = nft_pernet(net);
+ struct nft_trans_binding *binding;
+
+ list_add_tail(&trans->list, &nft_net->commit_list);
+
+ binding = nft_trans_get_binding(trans);
+ if (!binding)
+ return;
switch (trans->msg_type) {
case NFT_MSG_NEWSET:
if (!nft_trans_set_update(trans) &&
nft_set_is_anonymous(nft_trans_set(trans)))
- list_add_tail(&trans->binding_list, &nft_net->binding_list);
+ list_add_tail(&binding->binding_list, &nft_net->binding_list);
break;
case NFT_MSG_NEWCHAIN:
if (!nft_trans_chain_update(trans) &&
nft_chain_binding(nft_trans_chain(trans)))
- list_add_tail(&trans->binding_list, &nft_net->binding_list);
+ list_add_tail(&binding->binding_list, &nft_net->binding_list);
break;
}
-
- list_add_tail(&trans->list, &nft_net->commit_list);
}
static int nft_trans_table_add(struct nft_ctx *ctx, int msg_type)
@@ -416,11 +441,28 @@ static int nft_deltable(struct nft_ctx *ctx)
return err;
}
-static struct nft_trans *nft_trans_chain_add(struct nft_ctx *ctx, int msg_type)
+static struct nft_trans *
+nft_trans_alloc_chain(const struct nft_ctx *ctx, int msg_type)
{
+ struct nft_trans_chain *trans_chain;
struct nft_trans *trans;
trans = nft_trans_alloc(ctx, msg_type, sizeof(struct nft_trans_chain));
+ if (!trans)
+ return NULL;
+
+ trans_chain = nft_trans_container_chain(trans);
+ INIT_LIST_HEAD(&trans_chain->nft_trans_binding.binding_list);
+ trans_chain->chain = ctx->chain;
+
+ return trans;
+}
+
+static struct nft_trans *nft_trans_chain_add(struct nft_ctx *ctx, int msg_type)
+{
+ struct nft_trans *trans;
+
+ trans = nft_trans_alloc_chain(ctx, msg_type);
if (trans == NULL)
return ERR_PTR(-ENOMEM);
@@ -432,7 +474,6 @@ static struct nft_trans *nft_trans_chain_add(struct nft_ctx *ctx, int msg_type)
ntohl(nla_get_be32(ctx->nla[NFTA_CHAIN_ID]));
}
}
- nft_trans_chain(trans) = ctx->chain;
nft_trans_commit_list_add_tail(ctx->net, trans);
return trans;
@@ -505,6 +546,7 @@ static struct nft_trans *nft_trans_rule_add(struct nft_ctx *ctx, int msg_type,
ntohl(nla_get_be32(ctx->nla[NFTA_RULE_ID]));
}
nft_trans_rule(trans) = rule;
+ nft_trans_rule_chain(trans) = ctx->chain;
nft_trans_commit_list_add_tail(ctx->net, trans);
return trans;
@@ -560,12 +602,16 @@ static int __nft_trans_set_add(const struct nft_ctx *ctx, int msg_type,
struct nft_set *set,
const struct nft_set_desc *desc)
{
+ struct nft_trans_set *trans_set;
struct nft_trans *trans;
trans = nft_trans_alloc(ctx, msg_type, sizeof(struct nft_trans_set));
if (trans == NULL)
return -ENOMEM;
+ trans_set = nft_trans_container_set(trans);
+ INIT_LIST_HEAD(&trans_set->nft_trans_binding.binding_list);
+
if (msg_type == NFT_MSG_NEWSET && ctx->nla[NFTA_SET_ID] && !desc) {
nft_trans_set_id(trans) =
ntohl(nla_get_be32(ctx->nla[NFTA_SET_ID]));
@@ -1217,11 +1263,11 @@ static bool nft_table_pending_update(const struct nft_ctx *ctx)
return true;
list_for_each_entry(trans, &nft_net->commit_list, list) {
- if (trans->ctx.table == ctx->table &&
+ if (trans->table == ctx->table &&
((trans->msg_type == NFT_MSG_NEWCHAIN &&
nft_trans_chain_update(trans)) ||
(trans->msg_type == NFT_MSG_DELCHAIN &&
- nft_is_base_chain(trans->ctx.chain))))
+ nft_is_base_chain(nft_trans_chain(trans)))))
return true;
}
@@ -1615,15 +1661,15 @@ static int nf_tables_deltable(struct sk_buff *skb, const struct nfnl_info *info,
return nft_flush_table(&ctx);
}
-static void nf_tables_table_destroy(struct nft_ctx *ctx)
+static void nf_tables_table_destroy(struct nft_table *table)
{
- if (WARN_ON(ctx->table->use > 0))
+ if (WARN_ON(table->use > 0))
return;
- rhltable_destroy(&ctx->table->chains_ht);
- kfree(ctx->table->name);
- kfree(ctx->table->udata);
- kfree(ctx->table);
+ rhltable_destroy(&table->chains_ht);
+ kfree(table->name);
+ kfree(table->udata);
+ kfree(table);
}
void nft_register_chain_type(const struct nft_chain_type *ctype)
@@ -2049,18 +2095,19 @@ static struct nft_stats __percpu *nft_stats_alloc(const struct nlattr *attr)
return newstats;
}
-static void nft_chain_stats_replace(struct nft_trans *trans)
+static void nft_chain_stats_replace(struct nft_trans_chain *trans)
{
- struct nft_base_chain *chain = nft_base_chain(trans->ctx.chain);
+ const struct nft_trans *t = &trans->nft_trans_binding.nft_trans;
+ struct nft_base_chain *chain = nft_base_chain(trans->chain);
- if (!nft_trans_chain_stats(trans))
+ if (!trans->stats)
return;
- nft_trans_chain_stats(trans) =
- rcu_replace_pointer(chain->stats, nft_trans_chain_stats(trans),
- lockdep_commit_lock_is_held(trans->ctx.net));
+ trans->stats =
+ rcu_replace_pointer(chain->stats, trans->stats,
+ lockdep_commit_lock_is_held(t->net));
- if (!nft_trans_chain_stats(trans))
+ if (!trans->stats)
static_branch_inc(&nft_counters_enabled);
}
@@ -2078,9 +2125,9 @@ static void nf_tables_chain_free_chain_rules(struct nft_chain *chain)
kvfree(chain->blob_next);
}
-void nf_tables_chain_destroy(struct nft_ctx *ctx)
+void nf_tables_chain_destroy(struct nft_chain *chain)
{
- struct nft_chain *chain = ctx->chain;
+ const struct nft_table *table = chain->table;
struct nft_hook *hook, *next;
if (WARN_ON(chain->use > 0))
@@ -2092,7 +2139,7 @@ void nf_tables_chain_destroy(struct nft_ctx *ctx)
if (nft_is_base_chain(chain)) {
struct nft_base_chain *basechain = nft_base_chain(chain);
- if (nft_base_chain_netdev(ctx->family, basechain->ops.hooknum)) {
+ if (nft_base_chain_netdev(table->family, basechain->ops.hooknum)) {
list_for_each_entry_safe(hook, next,
&basechain->hook_list, list) {
list_del_rcu(&hook->list);
@@ -2581,7 +2628,7 @@ err_chain_add:
err_trans:
nft_use_dec_restore(&table->use);
err_destroy_chain:
- nf_tables_chain_destroy(ctx);
+ nf_tables_chain_destroy(chain);
return err;
}
@@ -2698,8 +2745,7 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
}
err = -ENOMEM;
- trans = nft_trans_alloc(ctx, NFT_MSG_NEWCHAIN,
- sizeof(struct nft_trans_chain));
+ trans = nft_trans_alloc_chain(ctx, NFT_MSG_NEWCHAIN);
if (trans == NULL)
goto err_trans;
@@ -2725,7 +2771,7 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
err = -EEXIST;
list_for_each_entry(tmp, &nft_net->commit_list, list) {
if (tmp->msg_type == NFT_MSG_NEWCHAIN &&
- tmp->ctx.table == table &&
+ tmp->table == table &&
nft_trans_chain_update(tmp) &&
nft_trans_chain_name(tmp) &&
strcmp(name, nft_trans_chain_name(tmp)) == 0) {
@@ -2774,13 +2820,11 @@ static struct nft_chain *nft_chain_lookup_byid(const struct net *net,
struct nft_trans *trans;
list_for_each_entry(trans, &nft_net->commit_list, list) {
- struct nft_chain *chain = trans->ctx.chain;
-
if (trans->msg_type == NFT_MSG_NEWCHAIN &&
- chain->table == table &&
+ nft_trans_chain(trans)->table == table &&
id == nft_trans_chain_id(trans) &&
- nft_active_genmask(chain, genmask))
- return chain;
+ nft_active_genmask(nft_trans_chain(trans), genmask))
+ return nft_trans_chain(trans);
}
return ERR_PTR(-ENOENT);
}
@@ -2915,8 +2959,7 @@ static int nft_delchain_hook(struct nft_ctx *ctx,
list_move(&hook->list, &chain_del_list);
}
- trans = nft_trans_alloc(ctx, NFT_MSG_DELCHAIN,
- sizeof(struct nft_trans_chain));
+ trans = nft_trans_alloc_chain(ctx, NFT_MSG_DELCHAIN);
if (!trans) {
err = -ENOMEM;
goto err_chain_del_hook;
@@ -4200,7 +4243,7 @@ static struct nft_rule *nft_rule_lookup_byid(const struct net *net,
list_for_each_entry(trans, &nft_net->commit_list, list) {
if (trans->msg_type == NFT_MSG_NEWRULE &&
- trans->ctx.chain == chain &&
+ nft_trans_rule_chain(trans) == chain &&
id == nft_trans_rule_id(trans))
return nft_trans_rule(trans);
}
@@ -9429,51 +9472,53 @@ static int nf_tables_validate(struct net *net)
*
* We defer the drop policy until the transaction has been finalized.
*/
-static void nft_chain_commit_drop_policy(struct nft_trans *trans)
+static void nft_chain_commit_drop_policy(struct nft_trans_chain *trans)
{
struct nft_base_chain *basechain;
- if (nft_trans_chain_policy(trans) != NF_DROP)
+ if (trans->policy != NF_DROP)
return;
- if (!nft_is_base_chain(trans->ctx.chain))
+ if (!nft_is_base_chain(trans->chain))
return;
- basechain = nft_base_chain(trans->ctx.chain);
+ basechain = nft_base_chain(trans->chain);
basechain->policy = NF_DROP;
}
-static void nft_chain_commit_update(struct nft_trans *trans)
+static void nft_chain_commit_update(struct nft_trans_chain *trans)
{
+ struct nft_table *table = trans->nft_trans_binding.nft_trans.table;
struct nft_base_chain *basechain;
- if (nft_trans_chain_name(trans)) {
- rhltable_remove(&trans->ctx.table->chains_ht,
- &trans->ctx.chain->rhlhead,
+ if (trans->name) {
+ rhltable_remove(&table->chains_ht,
+ &trans->chain->rhlhead,
nft_chain_ht_params);
- swap(trans->ctx.chain->name, nft_trans_chain_name(trans));
- rhltable_insert_key(&trans->ctx.table->chains_ht,
- trans->ctx.chain->name,
- &trans->ctx.chain->rhlhead,
+ swap(trans->chain->name, trans->name);
+ rhltable_insert_key(&table->chains_ht,
+ trans->chain->name,
+ &trans->chain->rhlhead,
nft_chain_ht_params);
}
- if (!nft_is_base_chain(trans->ctx.chain))
+ if (!nft_is_base_chain(trans->chain))
return;
nft_chain_stats_replace(trans);
- basechain = nft_base_chain(trans->ctx.chain);
+ basechain = nft_base_chain(trans->chain);
- switch (nft_trans_chain_policy(trans)) {
+ switch (trans->policy) {
case NF_DROP:
case NF_ACCEPT:
- basechain->policy = nft_trans_chain_policy(trans);
+ basechain->policy = trans->policy;
break;
}
}
-static void nft_obj_commit_update(struct nft_trans *trans)
+static void nft_obj_commit_update(const struct nft_ctx *ctx,
+ struct nft_trans *trans)
{
struct nft_object *newobj;
struct nft_object *obj;
@@ -9485,15 +9530,21 @@ static void nft_obj_commit_update(struct nft_trans *trans)
return;
obj->ops->update(obj, newobj);
- nft_obj_destroy(&trans->ctx, newobj);
+ nft_obj_destroy(ctx, newobj);
}
static void nft_commit_release(struct nft_trans *trans)
{
+ struct nft_ctx ctx = {
+ .net = trans->net,
+ };
+
+ nft_ctx_update(&ctx, trans);
+
switch (trans->msg_type) {
case NFT_MSG_DELTABLE:
case NFT_MSG_DESTROYTABLE:
- nf_tables_table_destroy(&trans->ctx);
+ nf_tables_table_destroy(trans->table);
break;
case NFT_MSG_NEWCHAIN:
free_percpu(nft_trans_chain_stats(trans));
@@ -9504,25 +9555,25 @@ static void nft_commit_release(struct nft_trans *trans)
if (nft_trans_chain_update(trans))
nft_hooks_destroy(&nft_trans_chain_hooks(trans));
else
- nf_tables_chain_destroy(&trans->ctx);
+ nf_tables_chain_destroy(nft_trans_chain(trans));
break;
case NFT_MSG_DELRULE:
case NFT_MSG_DESTROYRULE:
- nf_tables_rule_destroy(&trans->ctx, nft_trans_rule(trans));
+ nf_tables_rule_destroy(&ctx, nft_trans_rule(trans));
break;
case NFT_MSG_DELSET:
case NFT_MSG_DESTROYSET:
- nft_set_destroy(&trans->ctx, nft_trans_set(trans));
+ nft_set_destroy(&ctx, nft_trans_set(trans));
break;
case NFT_MSG_DELSETELEM:
case NFT_MSG_DESTROYSETELEM:
- nf_tables_set_elem_destroy(&trans->ctx,
+ nf_tables_set_elem_destroy(&ctx,
nft_trans_elem_set(trans),
nft_trans_elem_priv(trans));
break;
case NFT_MSG_DELOBJ:
case NFT_MSG_DESTROYOBJ:
- nft_obj_destroy(&trans->ctx, nft_trans_obj(trans));
+ nft_obj_destroy(&ctx, nft_trans_obj(trans));
break;
case NFT_MSG_DELFLOWTABLE:
case NFT_MSG_DESTROYFLOWTABLE:
@@ -9534,7 +9585,7 @@ static void nft_commit_release(struct nft_trans *trans)
}
if (trans->put_net)
- put_net(trans->ctx.net);
+ put_net(trans->net);
kfree(trans);
}
@@ -9653,10 +9704,10 @@ static void nf_tables_commit_chain_prepare_cancel(struct net *net)
struct nft_trans *trans, *next;
list_for_each_entry_safe(trans, next, &nft_net->commit_list, list) {
- struct nft_chain *chain = trans->ctx.chain;
-
if (trans->msg_type == NFT_MSG_NEWRULE ||
trans->msg_type == NFT_MSG_DELRULE) {
+ struct nft_chain *chain = nft_trans_rule_chain(trans);
+
kvfree(chain->blob_next);
chain->blob_next = NULL;
}
@@ -10014,7 +10065,7 @@ static void nf_tables_commit_release(struct net *net)
trans = list_last_entry(&nft_net->commit_list,
struct nft_trans, list);
- get_net(trans->ctx.net);
+ get_net(trans->net);
WARN_ON_ONCE(trans->put_net);
trans->put_net = true;
@@ -10158,12 +10209,15 @@ static void nft_gc_seq_end(struct nftables_pernet *nft_net, unsigned int gc_seq)
static int nf_tables_commit(struct net *net, struct sk_buff *skb)
{
struct nftables_pernet *nft_net = nft_pernet(net);
+ const struct nlmsghdr *nlh = nlmsg_hdr(skb);
+ struct nft_trans_binding *trans_binding;
struct nft_trans *trans, *next;
unsigned int base_seq, gc_seq;
LIST_HEAD(set_update_list);
struct nft_trans_elem *te;
struct nft_chain *chain;
struct nft_table *table;
+ struct nft_ctx ctx;
LIST_HEAD(adl);
int err;
@@ -10172,7 +10226,10 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
return 0;
}
- list_for_each_entry(trans, &nft_net->binding_list, binding_list) {
+ nft_ctx_init(&ctx, net, skb, nlh, NFPROTO_UNSPEC, NULL, NULL, NULL);
+
+ list_for_each_entry(trans_binding, &nft_net->binding_list, binding_list) {
+ trans = &trans_binding->nft_trans;
switch (trans->msg_type) {
case NFT_MSG_NEWSET:
if (!nft_trans_set_update(trans) &&
@@ -10190,6 +10247,9 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
return -EINVAL;
}
break;
+ default:
+ WARN_ONCE(1, "Unhandled bind type %d", trans->msg_type);
+ break;
}
}
@@ -10205,9 +10265,10 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
/* 1. Allocate space for next generation rules_gen_X[] */
list_for_each_entry_safe(trans, next, &nft_net->commit_list, list) {
+ struct nft_table *table = trans->table;
int ret;
- ret = nf_tables_commit_audit_alloc(&adl, trans->ctx.table);
+ ret = nf_tables_commit_audit_alloc(&adl, table);
if (ret) {
nf_tables_commit_chain_prepare_cancel(net);
nf_tables_commit_audit_free(&adl);
@@ -10215,7 +10276,7 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
}
if (trans->msg_type == NFT_MSG_NEWRULE ||
trans->msg_type == NFT_MSG_DELRULE) {
- chain = trans->ctx.chain;
+ chain = nft_trans_rule_chain(trans);
ret = nf_tables_commit_chain_prepare(net, chain);
if (ret < 0) {
@@ -10248,70 +10309,71 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
net->nft.gencursor = nft_gencursor_next(net);
list_for_each_entry_safe(trans, next, &nft_net->commit_list, list) {
- nf_tables_commit_audit_collect(&adl, trans->ctx.table,
- trans->msg_type);
+ struct nft_table *table = trans->table;
+
+ nft_ctx_update(&ctx, trans);
+
+ nf_tables_commit_audit_collect(&adl, table, trans->msg_type);
switch (trans->msg_type) {
case NFT_MSG_NEWTABLE:
if (nft_trans_table_update(trans)) {
- if (!(trans->ctx.table->flags & __NFT_TABLE_F_UPDATE)) {
+ if (!(table->flags & __NFT_TABLE_F_UPDATE)) {
nft_trans_destroy(trans);
break;
}
- if (trans->ctx.table->flags & NFT_TABLE_F_DORMANT)
- nf_tables_table_disable(net, trans->ctx.table);
+ if (table->flags & NFT_TABLE_F_DORMANT)
+ nf_tables_table_disable(net, table);
- trans->ctx.table->flags &= ~__NFT_TABLE_F_UPDATE;
+ table->flags &= ~__NFT_TABLE_F_UPDATE;
} else {
- nft_clear(net, trans->ctx.table);
+ nft_clear(net, table);
}
- nf_tables_table_notify(&trans->ctx, NFT_MSG_NEWTABLE);
+ nf_tables_table_notify(&ctx, NFT_MSG_NEWTABLE);
nft_trans_destroy(trans);
break;
case NFT_MSG_DELTABLE:
case NFT_MSG_DESTROYTABLE:
- list_del_rcu(&trans->ctx.table->list);
- nf_tables_table_notify(&trans->ctx, trans->msg_type);
+ list_del_rcu(&table->list);
+ nf_tables_table_notify(&ctx, trans->msg_type);
break;
case NFT_MSG_NEWCHAIN:
if (nft_trans_chain_update(trans)) {
- nft_chain_commit_update(trans);
- nf_tables_chain_notify(&trans->ctx, NFT_MSG_NEWCHAIN,
+ nft_chain_commit_update(nft_trans_container_chain(trans));
+ nf_tables_chain_notify(&ctx, NFT_MSG_NEWCHAIN,
&nft_trans_chain_hooks(trans));
list_splice(&nft_trans_chain_hooks(trans),
&nft_trans_basechain(trans)->hook_list);
/* trans destroyed after rcu grace period */
} else {
- nft_chain_commit_drop_policy(trans);
- nft_clear(net, trans->ctx.chain);
- nf_tables_chain_notify(&trans->ctx, NFT_MSG_NEWCHAIN, NULL);
+ nft_chain_commit_drop_policy(nft_trans_container_chain(trans));
+ nft_clear(net, nft_trans_chain(trans));
+ nf_tables_chain_notify(&ctx, NFT_MSG_NEWCHAIN, NULL);
nft_trans_destroy(trans);
}
break;
case NFT_MSG_DELCHAIN:
case NFT_MSG_DESTROYCHAIN:
if (nft_trans_chain_update(trans)) {
- nf_tables_chain_notify(&trans->ctx, NFT_MSG_DELCHAIN,
+ nf_tables_chain_notify(&ctx, NFT_MSG_DELCHAIN,
&nft_trans_chain_hooks(trans));
- if (!(trans->ctx.table->flags & NFT_TABLE_F_DORMANT)) {
+ if (!(table->flags & NFT_TABLE_F_DORMANT)) {
nft_netdev_unregister_hooks(net,
&nft_trans_chain_hooks(trans),
true);
}
} else {
- nft_chain_del(trans->ctx.chain);
- nf_tables_chain_notify(&trans->ctx, NFT_MSG_DELCHAIN,
+ nft_chain_del(nft_trans_chain(trans));
+ nf_tables_chain_notify(&ctx, NFT_MSG_DELCHAIN,
NULL);
- nf_tables_unregister_hook(trans->ctx.net,
- trans->ctx.table,
- trans->ctx.chain);
+ nf_tables_unregister_hook(ctx.net, ctx.table,
+ nft_trans_chain(trans));
}
break;
case NFT_MSG_NEWRULE:
- nft_clear(trans->ctx.net, nft_trans_rule(trans));
- nf_tables_rule_notify(&trans->ctx,
- nft_trans_rule(trans),
+ nft_clear(net, nft_trans_rule(trans));
+ nf_tables_rule_notify(&ctx, nft_trans_rule(trans),
NFT_MSG_NEWRULE);
- if (trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD)
+ if (nft_trans_rule_chain(trans)->flags & NFT_CHAIN_HW_OFFLOAD)
nft_flow_rule_destroy(nft_trans_flow_rule(trans));
nft_trans_destroy(trans);
@@ -10319,14 +10381,12 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
case NFT_MSG_DELRULE:
case NFT_MSG_DESTROYRULE:
list_del_rcu(&nft_trans_rule(trans)->list);
- nf_tables_rule_notify(&trans->ctx,
- nft_trans_rule(trans),
+ nf_tables_rule_notify(&ctx, nft_trans_rule(trans),
trans->msg_type);
- nft_rule_expr_deactivate(&trans->ctx,
- nft_trans_rule(trans),
+ nft_rule_expr_deactivate(&ctx, nft_trans_rule(trans),
NFT_TRANS_COMMIT);
- if (trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD)
+ if (nft_trans_rule_chain(trans)->flags & NFT_CHAIN_HW_OFFLOAD)
nft_flow_rule_destroy(nft_trans_flow_rule(trans));
break;
case NFT_MSG_NEWSET:
@@ -10345,9 +10405,9 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
*/
if (nft_set_is_anonymous(nft_trans_set(trans)) &&
!list_empty(&nft_trans_set(trans)->bindings))
- nft_use_dec(&trans->ctx.table->use);
+ nft_use_dec(&table->use);
}
- nf_tables_set_notify(&trans->ctx, nft_trans_set(trans),
+ nf_tables_set_notify(&ctx, nft_trans_set(trans),
NFT_MSG_NEWSET, GFP_KERNEL);
nft_trans_destroy(trans);
break;
@@ -10355,14 +10415,14 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
case NFT_MSG_DESTROYSET:
nft_trans_set(trans)->dead = 1;
list_del_rcu(&nft_trans_set(trans)->list);
- nf_tables_set_notify(&trans->ctx, nft_trans_set(trans),
+ nf_tables_set_notify(&ctx, nft_trans_set(trans),
trans->msg_type, GFP_KERNEL);
break;
case NFT_MSG_NEWSETELEM:
- te = (struct nft_trans_elem *)trans->data;
+ te = nft_trans_container_elem(trans);
nft_setelem_activate(net, te->set, te->elem_priv);
- nf_tables_setelem_notify(&trans->ctx, te->set,
+ nf_tables_setelem_notify(&ctx, te->set,
te->elem_priv,
NFT_MSG_NEWSETELEM);
if (te->set->ops->commit &&
@@ -10374,9 +10434,9 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
break;
case NFT_MSG_DELSETELEM:
case NFT_MSG_DESTROYSETELEM:
- te = (struct nft_trans_elem *)trans->data;
+ te = nft_trans_container_elem(trans);
- nf_tables_setelem_notify(&trans->ctx, te->set,
+ nf_tables_setelem_notify(&ctx, te->set,
te->elem_priv,
trans->msg_type);
nft_setelem_remove(net, te->set, te->elem_priv);
@@ -10392,13 +10452,13 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
break;
case NFT_MSG_NEWOBJ:
if (nft_trans_obj_update(trans)) {
- nft_obj_commit_update(trans);
- nf_tables_obj_notify(&trans->ctx,
+ nft_obj_commit_update(&ctx, trans);
+ nf_tables_obj_notify(&ctx,
nft_trans_obj(trans),
NFT_MSG_NEWOBJ);
} else {
nft_clear(net, nft_trans_obj(trans));
- nf_tables_obj_notify(&trans->ctx,
+ nf_tables_obj_notify(&ctx,
nft_trans_obj(trans),
NFT_MSG_NEWOBJ);
nft_trans_destroy(trans);
@@ -10407,14 +10467,14 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
case NFT_MSG_DELOBJ:
case NFT_MSG_DESTROYOBJ:
nft_obj_del(nft_trans_obj(trans));
- nf_tables_obj_notify(&trans->ctx, nft_trans_obj(trans),
+ nf_tables_obj_notify(&ctx, nft_trans_obj(trans),
trans->msg_type);
break;
case NFT_MSG_NEWFLOWTABLE:
if (nft_trans_flowtable_update(trans)) {
nft_trans_flowtable(trans)->data.flags =
nft_trans_flowtable_flags(trans);
- nf_tables_flowtable_notify(&trans->ctx,
+ nf_tables_flowtable_notify(&ctx,
nft_trans_flowtable(trans),
&nft_trans_flowtable_hooks(trans),
NFT_MSG_NEWFLOWTABLE);
@@ -10422,7 +10482,7 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
&nft_trans_flowtable(trans)->hook_list);
} else {
nft_clear(net, nft_trans_flowtable(trans));
- nf_tables_flowtable_notify(&trans->ctx,
+ nf_tables_flowtable_notify(&ctx,
nft_trans_flowtable(trans),
NULL,
NFT_MSG_NEWFLOWTABLE);
@@ -10432,7 +10492,7 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
case NFT_MSG_DELFLOWTABLE:
case NFT_MSG_DESTROYFLOWTABLE:
if (nft_trans_flowtable_update(trans)) {
- nf_tables_flowtable_notify(&trans->ctx,
+ nf_tables_flowtable_notify(&ctx,
nft_trans_flowtable(trans),
&nft_trans_flowtable_hooks(trans),
trans->msg_type);
@@ -10440,7 +10500,7 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
&nft_trans_flowtable_hooks(trans));
} else {
list_del_rcu(&nft_trans_flowtable(trans)->list);
- nf_tables_flowtable_notify(&trans->ctx,
+ nf_tables_flowtable_notify(&ctx,
nft_trans_flowtable(trans),
NULL,
trans->msg_type);
@@ -10482,28 +10542,32 @@ static void nf_tables_module_autoload(struct net *net)
static void nf_tables_abort_release(struct nft_trans *trans)
{
+ struct nft_ctx ctx = { };
+
+ nft_ctx_update(&ctx, trans);
+
switch (trans->msg_type) {
case NFT_MSG_NEWTABLE:
- nf_tables_table_destroy(&trans->ctx);
+ nf_tables_table_destroy(trans->table);
break;
case NFT_MSG_NEWCHAIN:
if (nft_trans_chain_update(trans))
nft_hooks_destroy(&nft_trans_chain_hooks(trans));
else
- nf_tables_chain_destroy(&trans->ctx);
+ nf_tables_chain_destroy(nft_trans_chain(trans));
break;
case NFT_MSG_NEWRULE:
- nf_tables_rule_destroy(&trans->ctx, nft_trans_rule(trans));
+ nf_tables_rule_destroy(&ctx, nft_trans_rule(trans));
break;
case NFT_MSG_NEWSET:
- nft_set_destroy(&trans->ctx, nft_trans_set(trans));
+ nft_set_destroy(&ctx, nft_trans_set(trans));
break;
case NFT_MSG_NEWSETELEM:
nft_set_elem_destroy(nft_trans_elem_set(trans),
nft_trans_elem_priv(trans), true);
break;
case NFT_MSG_NEWOBJ:
- nft_obj_destroy(&trans->ctx, nft_trans_obj(trans));
+ nft_obj_destroy(&ctx, nft_trans_obj(trans));
break;
case NFT_MSG_NEWFLOWTABLE:
if (nft_trans_flowtable_update(trans))
@@ -10535,6 +10599,9 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
struct nft_trans *trans, *next;
LIST_HEAD(set_update_list);
struct nft_trans_elem *te;
+ struct nft_ctx ctx = {
+ .net = net,
+ };
int err = 0;
if (action == NFNL_ABORT_VALIDATE &&
@@ -10543,37 +10610,41 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
list_for_each_entry_safe_reverse(trans, next, &nft_net->commit_list,
list) {
+ struct nft_table *table = trans->table;
+
+ nft_ctx_update(&ctx, trans);
+
switch (trans->msg_type) {
case NFT_MSG_NEWTABLE:
if (nft_trans_table_update(trans)) {
- if (!(trans->ctx.table->flags & __NFT_TABLE_F_UPDATE)) {
+ if (!(table->flags & __NFT_TABLE_F_UPDATE)) {
nft_trans_destroy(trans);
break;
}
- if (trans->ctx.table->flags & __NFT_TABLE_F_WAS_DORMANT) {
- nf_tables_table_disable(net, trans->ctx.table);
- trans->ctx.table->flags |= NFT_TABLE_F_DORMANT;
- } else if (trans->ctx.table->flags & __NFT_TABLE_F_WAS_AWAKEN) {
- trans->ctx.table->flags &= ~NFT_TABLE_F_DORMANT;
+ if (table->flags & __NFT_TABLE_F_WAS_DORMANT) {
+ nf_tables_table_disable(net, table);
+ table->flags |= NFT_TABLE_F_DORMANT;
+ } else if (table->flags & __NFT_TABLE_F_WAS_AWAKEN) {
+ table->flags &= ~NFT_TABLE_F_DORMANT;
}
- if (trans->ctx.table->flags & __NFT_TABLE_F_WAS_ORPHAN) {
- trans->ctx.table->flags &= ~NFT_TABLE_F_OWNER;
- trans->ctx.table->nlpid = 0;
+ if (table->flags & __NFT_TABLE_F_WAS_ORPHAN) {
+ table->flags &= ~NFT_TABLE_F_OWNER;
+ table->nlpid = 0;
}
- trans->ctx.table->flags &= ~__NFT_TABLE_F_UPDATE;
+ table->flags &= ~__NFT_TABLE_F_UPDATE;
nft_trans_destroy(trans);
} else {
- list_del_rcu(&trans->ctx.table->list);
+ list_del_rcu(&table->list);
}
break;
case NFT_MSG_DELTABLE:
case NFT_MSG_DESTROYTABLE:
- nft_clear(trans->ctx.net, trans->ctx.table);
+ nft_clear(trans->net, table);
nft_trans_destroy(trans);
break;
case NFT_MSG_NEWCHAIN:
if (nft_trans_chain_update(trans)) {
- if (!(trans->ctx.table->flags & NFT_TABLE_F_DORMANT)) {
+ if (!(table->flags & NFT_TABLE_F_DORMANT)) {
nft_netdev_unregister_hooks(net,
&nft_trans_chain_hooks(trans),
true);
@@ -10586,11 +10657,10 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
nft_trans_destroy(trans);
break;
}
- nft_use_dec_restore(&trans->ctx.table->use);
- nft_chain_del(trans->ctx.chain);
- nf_tables_unregister_hook(trans->ctx.net,
- trans->ctx.table,
- trans->ctx.chain);
+ nft_use_dec_restore(&table->use);
+ nft_chain_del(nft_trans_chain(trans));
+ nf_tables_unregister_hook(trans->net, table,
+ nft_trans_chain(trans));
}
break;
case NFT_MSG_DELCHAIN:
@@ -10599,8 +10669,8 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
list_splice(&nft_trans_chain_hooks(trans),
&nft_trans_basechain(trans)->hook_list);
} else {
- nft_use_inc_restore(&trans->ctx.table->use);
- nft_clear(trans->ctx.net, trans->ctx.chain);
+ nft_use_inc_restore(&table->use);
+ nft_clear(trans->net, nft_trans_chain(trans));
}
nft_trans_destroy(trans);
break;
@@ -10609,20 +10679,20 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
nft_trans_destroy(trans);
break;
}
- nft_use_dec_restore(&trans->ctx.chain->use);
+ nft_use_dec_restore(&nft_trans_rule_chain(trans)->use);
list_del_rcu(&nft_trans_rule(trans)->list);
- nft_rule_expr_deactivate(&trans->ctx,
+ nft_rule_expr_deactivate(&ctx,
nft_trans_rule(trans),
NFT_TRANS_ABORT);
- if (trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD)
+ if (nft_trans_rule_chain(trans)->flags & NFT_CHAIN_HW_OFFLOAD)
nft_flow_rule_destroy(nft_trans_flow_rule(trans));
break;
case NFT_MSG_DELRULE:
case NFT_MSG_DESTROYRULE:
- nft_use_inc_restore(&trans->ctx.chain->use);
- nft_clear(trans->ctx.net, nft_trans_rule(trans));
- nft_rule_expr_activate(&trans->ctx, nft_trans_rule(trans));
- if (trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD)
+ nft_use_inc_restore(&nft_trans_rule_chain(trans)->use);
+ nft_clear(trans->net, nft_trans_rule(trans));
+ nft_rule_expr_activate(&ctx, nft_trans_rule(trans));
+ if (nft_trans_rule_chain(trans)->flags & NFT_CHAIN_HW_OFFLOAD)
nft_flow_rule_destroy(nft_trans_flow_rule(trans));
nft_trans_destroy(trans);
@@ -10632,7 +10702,7 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
nft_trans_destroy(trans);
break;
}
- nft_use_dec_restore(&trans->ctx.table->use);
+ nft_use_dec_restore(&table->use);
if (nft_trans_set_bound(trans)) {
nft_trans_destroy(trans);
break;
@@ -10642,10 +10712,10 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
break;
case NFT_MSG_DELSET:
case NFT_MSG_DESTROYSET:
- nft_use_inc_restore(&trans->ctx.table->use);
- nft_clear(trans->ctx.net, nft_trans_set(trans));
+ nft_use_inc_restore(&table->use);
+ nft_clear(trans->net, nft_trans_set(trans));
if (nft_trans_set(trans)->flags & (NFT_SET_MAP | NFT_SET_OBJECT))
- nft_map_activate(&trans->ctx, nft_trans_set(trans));
+ nft_map_activate(&ctx, nft_trans_set(trans));
nft_trans_destroy(trans);
break;
@@ -10654,7 +10724,7 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
nft_trans_destroy(trans);
break;
}
- te = (struct nft_trans_elem *)trans->data;
+ te = nft_trans_container_elem(trans);
nft_setelem_remove(net, te->set, te->elem_priv);
if (!nft_setelem_is_catchall(te->set, te->elem_priv))
atomic_dec(&te->set->nelems);
@@ -10667,7 +10737,7 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
break;
case NFT_MSG_DELSETELEM:
case NFT_MSG_DESTROYSETELEM:
- te = (struct nft_trans_elem *)trans->data;
+ te = nft_trans_container_elem(trans);
if (!nft_setelem_active_next(net, te->set, te->elem_priv)) {
nft_setelem_data_activate(net, te->set, te->elem_priv);
@@ -10685,17 +10755,17 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
break;
case NFT_MSG_NEWOBJ:
if (nft_trans_obj_update(trans)) {
- nft_obj_destroy(&trans->ctx, nft_trans_obj_newobj(trans));
+ nft_obj_destroy(&ctx, nft_trans_obj_newobj(trans));
nft_trans_destroy(trans);
} else {
- nft_use_dec_restore(&trans->ctx.table->use);
+ nft_use_dec_restore(&table->use);
nft_obj_del(nft_trans_obj(trans));
}
break;
case NFT_MSG_DELOBJ:
case NFT_MSG_DESTROYOBJ:
- nft_use_inc_restore(&trans->ctx.table->use);
- nft_clear(trans->ctx.net, nft_trans_obj(trans));
+ nft_use_inc_restore(&table->use);
+ nft_clear(trans->net, nft_trans_obj(trans));
nft_trans_destroy(trans);
break;
case NFT_MSG_NEWFLOWTABLE:
@@ -10703,7 +10773,7 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
nft_unregister_flowtable_net_hooks(net,
&nft_trans_flowtable_hooks(trans));
} else {
- nft_use_dec_restore(&trans->ctx.table->use);
+ nft_use_dec_restore(&table->use);
list_del_rcu(&nft_trans_flowtable(trans)->list);
nft_unregister_flowtable_net_hooks(net,
&nft_trans_flowtable(trans)->hook_list);
@@ -10715,8 +10785,8 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
list_splice(&nft_trans_flowtable_hooks(trans),
&nft_trans_flowtable(trans)->hook_list);
} else {
- nft_use_inc_restore(&trans->ctx.table->use);
- nft_clear(trans->ctx.net, nft_trans_flowtable(trans));
+ nft_use_inc_restore(&table->use);
+ nft_clear(trans->net, nft_trans_flowtable(trans));
}
nft_trans_destroy(trans);
break;
@@ -11233,7 +11303,7 @@ int __nft_release_basechain(struct nft_ctx *ctx)
}
nft_chain_del(ctx->chain);
nft_use_dec(&ctx->table->use);
- nf_tables_chain_destroy(ctx);
+ nf_tables_chain_destroy(ctx->chain);
return 0;
}
@@ -11308,12 +11378,11 @@ static void __nft_release_table(struct net *net, struct nft_table *table)
nft_obj_destroy(&ctx, obj);
}
list_for_each_entry_safe(chain, nc, &table->chains, list) {
- ctx.chain = chain;
nft_chain_del(chain);
nft_use_dec(&table->use);
- nf_tables_chain_destroy(&ctx);
+ nf_tables_chain_destroy(chain);
}
- nf_tables_table_destroy(&ctx);
+ nf_tables_table_destroy(table);
}
static void __nft_release_tables(struct net *net)
@@ -11455,6 +11524,14 @@ static int __init nf_tables_module_init(void)
{
int err;
+ BUILD_BUG_ON(offsetof(struct nft_trans_table, nft_trans) != 0);
+ BUILD_BUG_ON(offsetof(struct nft_trans_chain, nft_trans_binding.nft_trans) != 0);
+ BUILD_BUG_ON(offsetof(struct nft_trans_rule, nft_trans) != 0);
+ BUILD_BUG_ON(offsetof(struct nft_trans_set, nft_trans_binding.nft_trans) != 0);
+ BUILD_BUG_ON(offsetof(struct nft_trans_elem, nft_trans) != 0);
+ BUILD_BUG_ON(offsetof(struct nft_trans_obj, nft_trans) != 0);
+ BUILD_BUG_ON(offsetof(struct nft_trans_flowtable, nft_trans) != 0);
+
err = register_pernet_subsys(&nf_tables_net_ops);
if (err < 0)
return err;