From 94579ac3f6d0820adc83b5dc5358ead0158101e9 Mon Sep 17 00:00:00 2001 From: Huy Nguyen Date: Mon, 1 Jun 2020 16:39:37 -0500 Subject: xfrm: Fix double ESP trailer insertion in IPsec crypto offload. During IPsec performance testing, we see bad ICMP checksum. The error packet has duplicated ESP trailer due to double validate_xmit_xfrm calls. The first call is from ip_output, but the packet cannot be sent because netif_xmit_frozen_or_stopped is true and the packet gets dev_requeue_skb. The second call is from NET_TX softirq. However after the first call, the packet already has the ESP trailer. Fix by marking the skb with XFRM_XMIT bit after the packet is handled by validate_xmit_xfrm to avoid duplicate ESP trailer insertion. Fixes: f6e27114a60a ("net: Add a xfrm validate function to validate_xmit_skb") Signed-off-by: Huy Nguyen Reviewed-by: Boris Pismenny Reviewed-by: Raed Salem Reviewed-by: Saeed Mahameed Signed-off-by: Steffen Klassert --- include/net/xfrm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 094fe682f5d7..c7d213c9f9d8 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1008,6 +1008,7 @@ struct xfrm_offload { #define XFRM_GRO 32 #define XFRM_ESP_NO_TRAILER 64 #define XFRM_DEV_RESUME 128 +#define XFRM_XMIT 256 __u32 status; #define CRYPTO_SUCCESS 1 -- cgit v1.2.3-59-g8ed1b From b0659d8a950d424e57cc0a67afc4740ee561224e Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Mon, 15 Jun 2020 14:49:26 -0700 Subject: bpf: Fix definition of bpf_ringbuf_output() helper in UAPI comments Fix definition of bpf_ringbuf_output() in UAPI header comments, which is used to generate libbpf's bpf_helper_defs.h header. Return value is a number (error code), not a pointer. Fixes: 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") Signed-off-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20200615214926.3638836-1-andriin@fb.com --- include/uapi/linux/bpf.h | 2 +- tools/include/uapi/linux/bpf.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index 19684813faae..974a71342aea 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -3168,7 +3168,7 @@ union bpf_attr { * Return * The id is returned or 0 in case the id could not be retrieved. * - * void *bpf_ringbuf_output(void *ringbuf, void *data, u64 size, u64 flags) + * int bpf_ringbuf_output(void *ringbuf, void *data, u64 size, u64 flags) * Description * Copy *size* bytes from *data* into a ring buffer *ringbuf*. * If BPF_RB_NO_WAKEUP is specified in *flags*, no notification of diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index 19684813faae..974a71342aea 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -3168,7 +3168,7 @@ union bpf_attr { * Return * The id is returned or 0 in case the id could not be retrieved. * - * void *bpf_ringbuf_output(void *ringbuf, void *data, u64 size, u64 flags) + * int bpf_ringbuf_output(void *ringbuf, void *data, u64 size, u64 flags) * Description * Copy *size* bytes from *data* into a ring buffer *ringbuf*. * If BPF_RB_NO_WAKEUP is specified in *flags*, no notification of -- cgit v1.2.3-59-g8ed1b From aadf9dcef9d4cd68c73a4ab934f93319c4becc47 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 17 Jun 2020 22:50:33 +0100 Subject: rxrpc: Fix trace string The trace symbol printer (__print_symbolic()) ignores symbols that map to an empty string and prints the hex value instead. Fix the symbol for rxrpc_cong_no_change to " -" instead of "" to avoid this. Fixes: b54a134a7de4 ("rxrpc: Fix handling of enums-to-string translation in tracing") Signed-off-by: David Howells --- include/trace/events/rxrpc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h index ba9efdc848f9..059b6e45a028 100644 --- a/include/trace/events/rxrpc.h +++ b/include/trace/events/rxrpc.h @@ -400,7 +400,7 @@ enum rxrpc_tx_point { EM(rxrpc_cong_begin_retransmission, " Retrans") \ EM(rxrpc_cong_cleared_nacks, " Cleared") \ EM(rxrpc_cong_new_low_nack, " NewLowN") \ - EM(rxrpc_cong_no_change, "") \ + EM(rxrpc_cong_no_change, " -") \ EM(rxrpc_cong_progress, " Progres") \ EM(rxrpc_cong_retransmit_again, " ReTxAgn") \ EM(rxrpc_cong_rtt_window_end, " RttWinE") \ -- cgit v1.2.3-59-g8ed1b From fb7861d14c8d7edac65b2fcb6e8031cb138457b2 Mon Sep 17 00:00:00 2001 From: Taehee Yoo Date: Tue, 16 Jun 2020 15:52:05 +0000 Subject: net: core: reduce recursion limit value In the current code, ->ndo_start_xmit() can be executed recursively only 10 times because of stack memory. But, in the case of the vxlan, 10 recursion limit value results in a stack overflow. In the current code, the nested interface is limited by 8 depth. There is no critical reason that the recursion limitation value should be 10. So, it would be good to be the same value with the limitation value of nesting interface depth. Test commands: ip link add vxlan10 type vxlan vni 10 dstport 4789 srcport 4789 4789 ip link set vxlan10 up ip a a 192.168.10.1/24 dev vxlan10 ip n a 192.168.10.2 dev vxlan10 lladdr fc:22:33:44:55:66 nud permanent for i in {9..0} do let A=$i+1 ip link add vxlan$i type vxlan vni $i dstport 4789 srcport 4789 4789 ip link set vxlan$i up ip a a 192.168.$i.1/24 dev vxlan$i ip n a 192.168.$i.2 dev vxlan$i lladdr fc:22:33:44:55:66 nud permanent bridge fdb add fc:22:33:44:55:66 dev vxlan$A dst 192.168.$i.2 self done hping3 192.168.10.2 -2 -d 60000 Splat looks like: [ 103.814237][ T1127] ============================================================================= [ 103.871955][ T1127] BUG kmalloc-2k (Tainted: G B ): Padding overwritten. 0x00000000897a2e4f-0x000 [ 103.873187][ T1127] ----------------------------------------------------------------------------- [ 103.873187][ T1127] [ 103.874252][ T1127] INFO: Slab 0x000000005cccc724 objects=5 used=5 fp=0x0000000000000000 flags=0x10000000001020 [ 103.881323][ T1127] CPU: 3 PID: 1127 Comm: hping3 Tainted: G B 5.7.0+ #575 [ 103.882131][ T1127] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 103.883006][ T1127] Call Trace: [ 103.883324][ T1127] dump_stack+0x96/0xdb [ 103.883716][ T1127] slab_err+0xad/0xd0 [ 103.884106][ T1127] ? _raw_spin_unlock+0x1f/0x30 [ 103.884620][ T1127] ? get_partial_node.isra.78+0x140/0x360 [ 103.885214][ T1127] slab_pad_check.part.53+0xf7/0x160 [ 103.885769][ T1127] ? pskb_expand_head+0x110/0xe10 [ 103.886316][ T1127] check_slab+0x97/0xb0 [ 103.886763][ T1127] alloc_debug_processing+0x84/0x1a0 [ 103.887308][ T1127] ___slab_alloc+0x5a5/0x630 [ 103.887765][ T1127] ? pskb_expand_head+0x110/0xe10 [ 103.888265][ T1127] ? lock_downgrade+0x730/0x730 [ 103.888762][ T1127] ? pskb_expand_head+0x110/0xe10 [ 103.889244][ T1127] ? __slab_alloc+0x3e/0x80 [ 103.889675][ T1127] __slab_alloc+0x3e/0x80 [ 103.890108][ T1127] __kmalloc_node_track_caller+0xc7/0x420 [ ... ] Fixes: 11a766ce915f ("net: Increase xmit RECURSION_LIMIT to 10.") Signed-off-by: Taehee Yoo Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 6fc613ed8eae..39e28e11863c 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3157,7 +3157,7 @@ static inline int dev_recursion_level(void) return this_cpu_read(softnet_data.xmit.recursion); } -#define XMIT_RECURSION_LIMIT 10 +#define XMIT_RECURSION_LIMIT 8 static inline bool dev_xmit_recursion(void) { return unlikely(__this_cpu_read(softnet_data.xmit.recursion) > -- cgit v1.2.3-59-g8ed1b From 26f2eb27d081081dbea6d3c11602c9ece36f4d9c Mon Sep 17 00:00:00 2001 From: wenxu Date: Thu, 18 Jun 2020 20:49:08 +0800 Subject: flow_offload: add flow_indr_block_cb_alloc/remove function Add flow_indr_block_cb_alloc/remove function for next fix patch. Signed-off-by: wenxu Signed-off-by: David S. Miller --- include/net/flow_offload.h | 13 +++++++++++++ net/core/flow_offload.c | 21 +++++++++++++++++++++ 2 files changed, 34 insertions(+) (limited to 'include') diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h index f2c8311a0433..bf4343042956 100644 --- a/include/net/flow_offload.h +++ b/include/net/flow_offload.h @@ -467,6 +467,12 @@ struct flow_block_cb { struct flow_block_cb *flow_block_cb_alloc(flow_setup_cb_t *cb, void *cb_ident, void *cb_priv, void (*release)(void *cb_priv)); +struct flow_block_cb *flow_indr_block_cb_alloc(flow_setup_cb_t *cb, + void *cb_ident, void *cb_priv, + void (*release)(void *cb_priv), + struct flow_block_offload *bo, + struct net_device *dev, void *data, + void (*cleanup)(struct flow_block_cb *block_cb)); void flow_block_cb_free(struct flow_block_cb *block_cb); struct flow_block_cb *flow_block_cb_lookup(struct flow_block *block, @@ -488,6 +494,13 @@ static inline void flow_block_cb_remove(struct flow_block_cb *block_cb, list_move(&block_cb->list, &offload->cb_list); } +static inline void flow_indr_block_cb_remove(struct flow_block_cb *block_cb, + struct flow_block_offload *offload) +{ + list_del(&block_cb->indr.list); + list_move(&block_cb->list, &offload->cb_list); +} + bool flow_block_cb_is_busy(flow_setup_cb_t *cb, void *cb_ident, struct list_head *driver_block_list); diff --git a/net/core/flow_offload.c b/net/core/flow_offload.c index 0cfc35e6be28..1fd781d155b4 100644 --- a/net/core/flow_offload.c +++ b/net/core/flow_offload.c @@ -437,6 +437,27 @@ static void flow_block_indr_init(struct flow_block_cb *flow_block, flow_block->indr.cleanup = cleanup; } +struct flow_block_cb *flow_indr_block_cb_alloc(flow_setup_cb_t *cb, + void *cb_ident, void *cb_priv, + void (*release)(void *cb_priv), + struct flow_block_offload *bo, + struct net_device *dev, void *data, + void (*cleanup)(struct flow_block_cb *block_cb)) +{ + struct flow_block_cb *block_cb; + + block_cb = flow_block_cb_alloc(cb, cb_ident, cb_priv, release); + if (IS_ERR(block_cb)) + goto out; + + flow_block_indr_init(block_cb, bo, dev, data, cleanup); + list_add(&block_cb->indr.list, &flow_block_indr_list); + +out: + return block_cb; +} +EXPORT_SYMBOL(flow_indr_block_cb_alloc); + static void __flow_block_indr_binding(struct flow_block_offload *bo, struct net_device *dev, void *data, void (*cleanup)(struct flow_block_cb *block_cb)) -- cgit v1.2.3-59-g8ed1b From 66f1939a1b705305df820d65f4d9a8457d05759c Mon Sep 17 00:00:00 2001 From: wenxu Date: Thu, 18 Jun 2020 20:49:09 +0800 Subject: flow_offload: use flow_indr_block_cb_alloc/remove function Prepare fix the bug in the next patch. use flow_indr_block_cb_alloc/remove function and remove the __flow_block_indr_binding. Signed-off-by: wenxu Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 19 ++++++++++++------- .../net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 21 ++++++++++++++------- drivers/net/ethernet/netronome/nfp/flower/main.h | 4 +++- .../net/ethernet/netronome/nfp/flower/offload.c | 18 +++++++++++------- include/net/flow_offload.h | 4 +++- net/core/flow_offload.c | 22 +--------------------- 6 files changed, 44 insertions(+), 44 deletions(-) (limited to 'include') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c index 0eef4f5e4a46..3e3a8841689d 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c @@ -1889,7 +1889,8 @@ static void bnxt_tc_setup_indr_rel(void *cb_priv) } static int bnxt_tc_setup_indr_block(struct net_device *netdev, struct bnxt *bp, - struct flow_block_offload *f) + struct flow_block_offload *f, void *data, + void (*cleanup)(struct flow_block_cb *block_cb)) { struct bnxt_flower_indr_block_cb_priv *cb_priv; struct flow_block_cb *block_cb; @@ -1907,9 +1908,10 @@ static int bnxt_tc_setup_indr_block(struct net_device *netdev, struct bnxt *bp, cb_priv->bp = bp; list_add(&cb_priv->list, &bp->tc_indr_block_list); - block_cb = flow_block_cb_alloc(bnxt_tc_setup_indr_block_cb, - cb_priv, cb_priv, - bnxt_tc_setup_indr_rel); + block_cb = flow_indr_block_cb_alloc(bnxt_tc_setup_indr_block_cb, + cb_priv, cb_priv, + bnxt_tc_setup_indr_rel, f, + netdev, data, cleanup); if (IS_ERR(block_cb)) { list_del(&cb_priv->list); kfree(cb_priv); @@ -1930,7 +1932,7 @@ static int bnxt_tc_setup_indr_block(struct net_device *netdev, struct bnxt *bp, if (!block_cb) return -ENOENT; - flow_block_cb_remove(block_cb, f); + flow_indr_block_cb_remove(block_cb, f); list_del(&block_cb->driver_list); break; default: @@ -1945,14 +1947,17 @@ static bool bnxt_is_netdev_indr_offload(struct net_device *netdev) } static int bnxt_tc_setup_indr_cb(struct net_device *netdev, void *cb_priv, - enum tc_setup_type type, void *type_data) + enum tc_setup_type type, void *type_data, + void *data, + void (*cleanup)(struct flow_block_cb *block_cb)) { if (!bnxt_is_netdev_indr_offload(netdev)) return -EOPNOTSUPP; switch (type) { case TC_SETUP_BLOCK: - return bnxt_tc_setup_indr_block(netdev, cb_priv, type_data); + return bnxt_tc_setup_indr_block(netdev, cb_priv, type_data, data, + cleanup); default: break; } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c index 80713123de5c..d629864fc996 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c @@ -407,7 +407,9 @@ static int mlx5e_rep_indr_setup_block(struct net_device *netdev, struct mlx5e_rep_priv *rpriv, struct flow_block_offload *f, - flow_setup_cb_t *setup_cb) + flow_setup_cb_t *setup_cb, + void *data, + void (*cleanup)(struct flow_block_cb *block_cb)) { struct mlx5e_priv *priv = netdev_priv(rpriv->netdev); struct mlx5e_rep_indr_block_priv *indr_priv; @@ -438,8 +440,9 @@ mlx5e_rep_indr_setup_block(struct net_device *netdev, list_add(&indr_priv->list, &rpriv->uplink_priv.tc_indr_block_priv_list); - block_cb = flow_block_cb_alloc(setup_cb, indr_priv, indr_priv, - mlx5e_rep_indr_block_unbind); + block_cb = flow_indr_block_cb_alloc(setup_cb, indr_priv, indr_priv, + mlx5e_rep_indr_block_unbind, + f, netdev, data, cleanup); if (IS_ERR(block_cb)) { list_del(&indr_priv->list); kfree(indr_priv); @@ -458,7 +461,7 @@ mlx5e_rep_indr_setup_block(struct net_device *netdev, if (!block_cb) return -ENOENT; - flow_block_cb_remove(block_cb, f); + flow_indr_block_cb_remove(block_cb, f); list_del(&block_cb->driver_list); return 0; default: @@ -469,15 +472,19 @@ mlx5e_rep_indr_setup_block(struct net_device *netdev, static int mlx5e_rep_indr_setup_cb(struct net_device *netdev, void *cb_priv, - enum tc_setup_type type, void *type_data) + enum tc_setup_type type, void *type_data, + void *data, + void (*cleanup)(struct flow_block_cb *block_cb)) { switch (type) { case TC_SETUP_BLOCK: return mlx5e_rep_indr_setup_block(netdev, cb_priv, type_data, - mlx5e_rep_indr_setup_tc_cb); + mlx5e_rep_indr_setup_tc_cb, + data, cleanup); case TC_SETUP_FT: return mlx5e_rep_indr_setup_block(netdev, cb_priv, type_data, - mlx5e_rep_indr_setup_ft_cb); + mlx5e_rep_indr_setup_ft_cb, + data, cleanup); default: return -EOPNOTSUPP; } diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h index 6c3dc3baf387..56b3b68e273e 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.h +++ b/drivers/net/ethernet/netronome/nfp/flower/main.h @@ -459,7 +459,9 @@ int nfp_flower_setup_qos_offload(struct nfp_app *app, struct net_device *netdev, struct tc_cls_matchall_offload *flow); void nfp_flower_stats_rlim_reply(struct nfp_app *app, struct sk_buff *skb); int nfp_flower_indr_setup_tc_cb(struct net_device *netdev, void *cb_priv, - enum tc_setup_type type, void *type_data); + enum tc_setup_type type, void *type_data, + void *data, + void (*cleanup)(struct flow_block_cb *block_cb)); int nfp_flower_setup_indr_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv); diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c index 695d24b9dd92..95c75250c355 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/offload.c +++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c @@ -1647,7 +1647,8 @@ static void nfp_flower_setup_indr_tc_release(void *cb_priv) static int nfp_flower_setup_indr_tc_block(struct net_device *netdev, struct nfp_app *app, - struct flow_block_offload *f) + struct flow_block_offload *f, void *data, + void (*cleanup)(struct flow_block_cb *block_cb)) { struct nfp_flower_indr_block_cb_priv *cb_priv; struct nfp_flower_priv *priv = app->priv; @@ -1676,9 +1677,10 @@ nfp_flower_setup_indr_tc_block(struct net_device *netdev, struct nfp_app *app, cb_priv->app = app; list_add(&cb_priv->list, &priv->indr_block_cb_priv); - block_cb = flow_block_cb_alloc(nfp_flower_setup_indr_block_cb, - cb_priv, cb_priv, - nfp_flower_setup_indr_tc_release); + block_cb = flow_indr_block_cb_alloc(nfp_flower_setup_indr_block_cb, + cb_priv, cb_priv, + nfp_flower_setup_indr_tc_release, + f, netdev, data, cleanup); if (IS_ERR(block_cb)) { list_del(&cb_priv->list); kfree(cb_priv); @@ -1699,7 +1701,7 @@ nfp_flower_setup_indr_tc_block(struct net_device *netdev, struct nfp_app *app, if (!block_cb) return -ENOENT; - flow_block_cb_remove(block_cb, f); + flow_indr_block_cb_remove(block_cb, f); list_del(&block_cb->driver_list); return 0; default: @@ -1710,7 +1712,9 @@ nfp_flower_setup_indr_tc_block(struct net_device *netdev, struct nfp_app *app, int nfp_flower_indr_setup_tc_cb(struct net_device *netdev, void *cb_priv, - enum tc_setup_type type, void *type_data) + enum tc_setup_type type, void *type_data, + void *data, + void (*cleanup)(struct flow_block_cb *block_cb)) { if (!nfp_fl_is_netdev_to_offload(netdev)) return -EOPNOTSUPP; @@ -1718,7 +1722,7 @@ nfp_flower_indr_setup_tc_cb(struct net_device *netdev, void *cb_priv, switch (type) { case TC_SETUP_BLOCK: return nfp_flower_setup_indr_tc_block(netdev, cb_priv, - type_data); + type_data, data, cleanup); default: return -EOPNOTSUPP; } diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h index bf4343042956..1961c7982273 100644 --- a/include/net/flow_offload.h +++ b/include/net/flow_offload.h @@ -545,7 +545,9 @@ static inline void flow_block_init(struct flow_block *flow_block) } typedef int flow_indr_block_bind_cb_t(struct net_device *dev, void *cb_priv, - enum tc_setup_type type, void *type_data); + enum tc_setup_type type, void *type_data, + void *data, + void (*cleanup)(struct flow_block_cb *block_cb)); int flow_indr_dev_register(flow_indr_block_bind_cb_t *cb, void *cb_priv); void flow_indr_dev_unregister(flow_indr_block_bind_cb_t *cb, void *cb_priv, diff --git a/net/core/flow_offload.c b/net/core/flow_offload.c index 1fd781d155b4..ddd958c6040e 100644 --- a/net/core/flow_offload.c +++ b/net/core/flow_offload.c @@ -458,25 +458,6 @@ out: } EXPORT_SYMBOL(flow_indr_block_cb_alloc); -static void __flow_block_indr_binding(struct flow_block_offload *bo, - struct net_device *dev, void *data, - void (*cleanup)(struct flow_block_cb *block_cb)) -{ - struct flow_block_cb *block_cb; - - list_for_each_entry(block_cb, &bo->cb_list, list) { - switch (bo->command) { - case FLOW_BLOCK_BIND: - flow_block_indr_init(block_cb, bo, dev, data, cleanup); - list_add(&block_cb->indr.list, &flow_block_indr_list); - break; - case FLOW_BLOCK_UNBIND: - list_del(&block_cb->indr.list); - break; - } - } -} - int flow_indr_dev_setup_offload(struct net_device *dev, enum tc_setup_type type, void *data, struct flow_block_offload *bo, @@ -486,9 +467,8 @@ int flow_indr_dev_setup_offload(struct net_device *dev, mutex_lock(&flow_indr_block_lock); list_for_each_entry(this, &flow_block_indr_dev_list, list) - this->cb(dev, this->cb_priv, type, bo); + this->cb(dev, this->cb_priv, type, bo, data, cleanup); - __flow_block_indr_binding(bo, dev, data, cleanup); mutex_unlock(&flow_indr_block_lock); return list_empty(&bo->cb_list) ? -EOPNOTSUPP : 0; -- cgit v1.2.3-59-g8ed1b From a1db217861f33b8d9ea8171bcacee51186e2d5ba Mon Sep 17 00:00:00 2001 From: wenxu Date: Thu, 18 Jun 2020 20:49:10 +0800 Subject: net: flow_offload: fix flow_indr_dev_unregister path If the representor is removed, then identify the indirect flow_blocks that need to be removed by the release callback and the port representor structure. To identify the port representor structure, a new indr.cb_priv field needs to be introduced. The flow_block also needs to be removed from the driver list from the cleanup path. Fixes: 1fac52da5942 ("net: flow_offload: consolidate indirect flow_block infrastructure") Signed-off-by: wenxu Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 4 ++-- drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 5 +++-- drivers/net/ethernet/netronome/nfp/flower/main.c | 2 +- drivers/net/ethernet/netronome/nfp/flower/main.h | 3 +-- drivers/net/ethernet/netronome/nfp/flower/offload.c | 8 ++++---- include/net/flow_offload.h | 4 +++- net/core/flow_offload.c | 16 ++++++++++------ net/netfilter/nf_flow_table_offload.c | 1 + net/netfilter/nf_tables_offload.c | 1 + net/sched/cls_api.c | 1 + 10 files changed, 27 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c index 3e3a8841689d..4a11c1e7cc02 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c @@ -1911,7 +1911,7 @@ static int bnxt_tc_setup_indr_block(struct net_device *netdev, struct bnxt *bp, block_cb = flow_indr_block_cb_alloc(bnxt_tc_setup_indr_block_cb, cb_priv, cb_priv, bnxt_tc_setup_indr_rel, f, - netdev, data, cleanup); + netdev, data, bp, cleanup); if (IS_ERR(block_cb)) { list_del(&cb_priv->list); kfree(cb_priv); @@ -2079,7 +2079,7 @@ void bnxt_shutdown_tc(struct bnxt *bp) return; flow_indr_dev_unregister(bnxt_tc_setup_indr_cb, bp, - bnxt_tc_setup_indr_block_cb); + bnxt_tc_setup_indr_rel); rhashtable_destroy(&tc_info->flow_table); rhashtable_destroy(&tc_info->l2_table); rhashtable_destroy(&tc_info->decap_l2_table); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c index d629864fc996..eefeb1cdc2ee 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c @@ -442,7 +442,8 @@ mlx5e_rep_indr_setup_block(struct net_device *netdev, block_cb = flow_indr_block_cb_alloc(setup_cb, indr_priv, indr_priv, mlx5e_rep_indr_block_unbind, - f, netdev, data, cleanup); + f, netdev, data, rpriv, + cleanup); if (IS_ERR(block_cb)) { list_del(&indr_priv->list); kfree(indr_priv); @@ -503,7 +504,7 @@ int mlx5e_rep_tc_netdevice_event_register(struct mlx5e_rep_priv *rpriv) void mlx5e_rep_tc_netdevice_event_unregister(struct mlx5e_rep_priv *rpriv) { flow_indr_dev_unregister(mlx5e_rep_indr_setup_cb, rpriv, - mlx5e_rep_indr_setup_tc_cb); + mlx5e_rep_indr_block_unbind); } #if IS_ENABLED(CONFIG_NET_TC_SKB_EXT) diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.c b/drivers/net/ethernet/netronome/nfp/flower/main.c index c39327677a7d..bb448c82cdc2 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.c +++ b/drivers/net/ethernet/netronome/nfp/flower/main.c @@ -861,7 +861,7 @@ static void nfp_flower_clean(struct nfp_app *app) flush_work(&app_priv->cmsg_work); flow_indr_dev_unregister(nfp_flower_indr_setup_tc_cb, app, - nfp_flower_setup_indr_block_cb); + nfp_flower_setup_indr_tc_release); if (app_priv->flower_ext_feats & NFP_FL_FEATS_VF_RLIM) nfp_flower_qos_cleanup(app); diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h index 56b3b68e273e..7f54a620acad 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.h +++ b/drivers/net/ethernet/netronome/nfp/flower/main.h @@ -462,8 +462,7 @@ int nfp_flower_indr_setup_tc_cb(struct net_device *netdev, void *cb_priv, enum tc_setup_type type, void *type_data, void *data, void (*cleanup)(struct flow_block_cb *block_cb)); -int nfp_flower_setup_indr_block_cb(enum tc_setup_type type, void *type_data, - void *cb_priv); +void nfp_flower_setup_indr_tc_release(void *cb_priv); void __nfp_flower_non_repr_priv_get(struct nfp_flower_non_repr_priv *non_repr_priv); diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c index 95c75250c355..d7340dc09b4c 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/offload.c +++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c @@ -1619,8 +1619,8 @@ nfp_flower_indr_block_cb_priv_lookup(struct nfp_app *app, return NULL; } -int nfp_flower_setup_indr_block_cb(enum tc_setup_type type, - void *type_data, void *cb_priv) +static int nfp_flower_setup_indr_block_cb(enum tc_setup_type type, + void *type_data, void *cb_priv) { struct nfp_flower_indr_block_cb_priv *priv = cb_priv; struct flow_cls_offload *flower = type_data; @@ -1637,7 +1637,7 @@ int nfp_flower_setup_indr_block_cb(enum tc_setup_type type, } } -static void nfp_flower_setup_indr_tc_release(void *cb_priv) +void nfp_flower_setup_indr_tc_release(void *cb_priv) { struct nfp_flower_indr_block_cb_priv *priv = cb_priv; @@ -1680,7 +1680,7 @@ nfp_flower_setup_indr_tc_block(struct net_device *netdev, struct nfp_app *app, block_cb = flow_indr_block_cb_alloc(nfp_flower_setup_indr_block_cb, cb_priv, cb_priv, nfp_flower_setup_indr_tc_release, - f, netdev, data, cleanup); + f, netdev, data, app, cleanup); if (IS_ERR(block_cb)) { list_del(&cb_priv->list); kfree(cb_priv); diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h index 1961c7982273..6315324b9dc2 100644 --- a/include/net/flow_offload.h +++ b/include/net/flow_offload.h @@ -450,6 +450,7 @@ struct flow_block_indr { struct net_device *dev; enum flow_block_binder_type binder_type; void *data; + void *cb_priv; void (*cleanup)(struct flow_block_cb *block_cb); }; @@ -472,6 +473,7 @@ struct flow_block_cb *flow_indr_block_cb_alloc(flow_setup_cb_t *cb, void (*release)(void *cb_priv), struct flow_block_offload *bo, struct net_device *dev, void *data, + void *indr_cb_priv, void (*cleanup)(struct flow_block_cb *block_cb)); void flow_block_cb_free(struct flow_block_cb *block_cb); @@ -551,7 +553,7 @@ typedef int flow_indr_block_bind_cb_t(struct net_device *dev, void *cb_priv, int flow_indr_dev_register(flow_indr_block_bind_cb_t *cb, void *cb_priv); void flow_indr_dev_unregister(flow_indr_block_bind_cb_t *cb, void *cb_priv, - flow_setup_cb_t *setup_cb); + void (*release)(void *cb_priv)); int flow_indr_dev_setup_offload(struct net_device *dev, enum tc_setup_type type, void *data, struct flow_block_offload *bo, diff --git a/net/core/flow_offload.c b/net/core/flow_offload.c index ddd958c6040e..b739cfab796e 100644 --- a/net/core/flow_offload.c +++ b/net/core/flow_offload.c @@ -372,14 +372,15 @@ int flow_indr_dev_register(flow_indr_block_bind_cb_t *cb, void *cb_priv) } EXPORT_SYMBOL(flow_indr_dev_register); -static void __flow_block_indr_cleanup(flow_setup_cb_t *setup_cb, void *cb_priv, +static void __flow_block_indr_cleanup(void (*release)(void *cb_priv), + void *cb_priv, struct list_head *cleanup_list) { struct flow_block_cb *this, *next; list_for_each_entry_safe(this, next, &flow_block_indr_list, indr.list) { - if (this->cb == setup_cb && - this->cb_priv == cb_priv) { + if (this->release == release && + this->indr.cb_priv == cb_priv) { list_move(&this->indr.list, cleanup_list); return; } @@ -397,7 +398,7 @@ static void flow_block_indr_notify(struct list_head *cleanup_list) } void flow_indr_dev_unregister(flow_indr_block_bind_cb_t *cb, void *cb_priv, - flow_setup_cb_t *setup_cb) + void (*release)(void *cb_priv)) { struct flow_indr_dev *this, *next, *indr_dev = NULL; LIST_HEAD(cleanup_list); @@ -418,7 +419,7 @@ void flow_indr_dev_unregister(flow_indr_block_bind_cb_t *cb, void *cb_priv, return; } - __flow_block_indr_cleanup(setup_cb, cb_priv, &cleanup_list); + __flow_block_indr_cleanup(release, cb_priv, &cleanup_list); mutex_unlock(&flow_indr_block_lock); flow_block_indr_notify(&cleanup_list); @@ -429,10 +430,12 @@ EXPORT_SYMBOL(flow_indr_dev_unregister); static void flow_block_indr_init(struct flow_block_cb *flow_block, struct flow_block_offload *bo, struct net_device *dev, void *data, + void *cb_priv, void (*cleanup)(struct flow_block_cb *block_cb)) { flow_block->indr.binder_type = bo->binder_type; flow_block->indr.data = data; + flow_block->indr.cb_priv = cb_priv; flow_block->indr.dev = dev; flow_block->indr.cleanup = cleanup; } @@ -442,6 +445,7 @@ struct flow_block_cb *flow_indr_block_cb_alloc(flow_setup_cb_t *cb, void (*release)(void *cb_priv), struct flow_block_offload *bo, struct net_device *dev, void *data, + void *indr_cb_priv, void (*cleanup)(struct flow_block_cb *block_cb)) { struct flow_block_cb *block_cb; @@ -450,7 +454,7 @@ struct flow_block_cb *flow_indr_block_cb_alloc(flow_setup_cb_t *cb, if (IS_ERR(block_cb)) goto out; - flow_block_indr_init(block_cb, bo, dev, data, cleanup); + flow_block_indr_init(block_cb, bo, dev, data, indr_cb_priv, cleanup); list_add(&block_cb->indr.list, &flow_block_indr_list); out: diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c index 62651e6683f6..5fff1e040168 100644 --- a/net/netfilter/nf_flow_table_offload.c +++ b/net/netfilter/nf_flow_table_offload.c @@ -950,6 +950,7 @@ static void nf_flow_table_indr_cleanup(struct flow_block_cb *block_cb) nf_flow_table_gc_cleanup(flowtable, dev); down_write(&flowtable->flow_block_lock); list_del(&block_cb->list); + list_del(&block_cb->driver_list); flow_block_cb_free(block_cb); up_write(&flowtable->flow_block_lock); } diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c index 185fc82c99aa..c7cf1cde46de 100644 --- a/net/netfilter/nf_tables_offload.c +++ b/net/netfilter/nf_tables_offload.c @@ -296,6 +296,7 @@ static void nft_indr_block_cleanup(struct flow_block_cb *block_cb) nft_flow_block_offload_init(&bo, dev_net(dev), FLOW_BLOCK_UNBIND, basechain, &extack); mutex_lock(&net->nft.commit_mutex); + list_del(&block_cb->driver_list); list_move(&block_cb->list, &bo.cb_list); nft_flow_offload_unbind(&bo, basechain); mutex_unlock(&net->nft.commit_mutex); diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index a00a203b2ef5..f8028d73edf1 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -652,6 +652,7 @@ static void tc_block_indr_cleanup(struct flow_block_cb *block_cb) &block->flow_block, tcf_block_shared(block), &extack); down_write(&block->cb_lock); + list_del(&block_cb->driver_list); list_move(&block_cb->list, &bo.cb_list); up_write(&block->cb_lock); rtnl_lock(); -- cgit v1.2.3-59-g8ed1b From 26ac10be3c80a26d03c950b7387c4b9566c260b6 Mon Sep 17 00:00:00 2001 From: Aiden Leong Date: Mon, 22 Jun 2020 20:04:58 -0700 Subject: GUE: Fix a typo Fix a typo in gue.h Signed-off-by: Aiden Leong Signed-off-by: David S. Miller --- include/net/gue.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/gue.h b/include/net/gue.h index 3a6595bfa641..e42402f180b7 100644 --- a/include/net/gue.h +++ b/include/net/gue.h @@ -21,7 +21,7 @@ * | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * - * C bit indicates contol message when set, data message when unset. + * C bit indicates control message when set, data message when unset. * For a control message, proto/ctype is interpreted as a type of * control message. For data messages, proto/ctype is the IP protocol * of the next header. -- cgit v1.2.3-59-g8ed1b From 2464bc7c2897b7549146a743045089d3aea7b85b Mon Sep 17 00:00:00 2001 From: Horatiu Vultur Date: Tue, 23 Jun 2020 11:05:40 +0200 Subject: bridge: uapi: mrp: Fix MRP_PORT_ROLE Currently the MRP_PORT_ROLE_NONE has the value 0x2 but this is in conflict with the IEC 62439-2 standard. The standard defines the following port roles: primary (0x0), secondary(0x1), interconnect(0x2). Therefore remove the port role none. Fixes: 4714d13791f831 ("bridge: uapi: mrp: Add mrp attributes.") Signed-off-by: Horatiu Vultur Signed-off-by: David S. Miller --- include/uapi/linux/mrp_bridge.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/uapi/linux/mrp_bridge.h b/include/uapi/linux/mrp_bridge.h index 84f15f48a7cb..bee366540212 100644 --- a/include/uapi/linux/mrp_bridge.h +++ b/include/uapi/linux/mrp_bridge.h @@ -36,7 +36,6 @@ enum br_mrp_port_state_type { enum br_mrp_port_role_type { BR_MRP_PORT_ROLE_PRIMARY, BR_MRP_PORT_ROLE_SECONDARY, - BR_MRP_PORT_ROLE_NONE, }; enum br_mrp_tlv_header_type { -- cgit v1.2.3-59-g8ed1b From 97dd1abd026ae4e6a82fa68645928404ad483409 Mon Sep 17 00:00:00 2001 From: Alexander Lobakin Date: Tue, 23 Jun 2020 16:51:29 +0300 Subject: net: qed: fix left elements count calculation qed_chain_get_element_left{,_u32} returned 0 when the difference between producer and consumer page count was equal to the total page count. Fix this by conditional expanding of producer value (vs unconditional). This allowed to eliminate normalizaton against total page count, which was the cause of this bug. Misc: replace open-coded constants with common defines. Fixes: a91eb52abb50 ("qed: Revisit chain implementation") Signed-off-by: Alexander Lobakin Signed-off-by: Igor Russkikh Signed-off-by: Michal Kalderon Signed-off-by: David S. Miller --- include/linux/qed/qed_chain.h | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/linux/qed/qed_chain.h b/include/linux/qed/qed_chain.h index 733fad7dfbed..6d15040c642c 100644 --- a/include/linux/qed/qed_chain.h +++ b/include/linux/qed/qed_chain.h @@ -207,28 +207,34 @@ static inline u32 qed_chain_get_cons_idx_u32(struct qed_chain *p_chain) static inline u16 qed_chain_get_elem_left(struct qed_chain *p_chain) { + u16 elem_per_page = p_chain->elem_per_page; + u32 prod = p_chain->u.chain16.prod_idx; + u32 cons = p_chain->u.chain16.cons_idx; u16 used; - used = (u16) (((u32)0x10000 + - (u32)p_chain->u.chain16.prod_idx) - - (u32)p_chain->u.chain16.cons_idx); + if (prod < cons) + prod += (u32)U16_MAX + 1; + + used = (u16)(prod - cons); if (p_chain->mode == QED_CHAIN_MODE_NEXT_PTR) - used -= p_chain->u.chain16.prod_idx / p_chain->elem_per_page - - p_chain->u.chain16.cons_idx / p_chain->elem_per_page; + used -= prod / elem_per_page - cons / elem_per_page; return (u16)(p_chain->capacity - used); } static inline u32 qed_chain_get_elem_left_u32(struct qed_chain *p_chain) { + u16 elem_per_page = p_chain->elem_per_page; + u64 prod = p_chain->u.chain32.prod_idx; + u64 cons = p_chain->u.chain32.cons_idx; u32 used; - used = (u32) (((u64)0x100000000ULL + - (u64)p_chain->u.chain32.prod_idx) - - (u64)p_chain->u.chain32.cons_idx); + if (prod < cons) + prod += (u64)U32_MAX + 1; + + used = (u32)(prod - cons); if (p_chain->mode == QED_CHAIN_MODE_NEXT_PTR) - used -= p_chain->u.chain32.prod_idx / p_chain->elem_per_page - - p_chain->u.chain32.cons_idx / p_chain->elem_per_page; + used -= (u32)(prod / elem_per_page - cons / elem_per_page); return p_chain->capacity - used; } -- cgit v1.2.3-59-g8ed1b From 41b14fb8724d5a4b382a63cb4a1a61880347ccb8 Mon Sep 17 00:00:00 2001 From: Tariq Toukan Date: Mon, 22 Jun 2020 23:26:04 +0300 Subject: net: Do not clear the sock TX queue in sk_set_socket() Clearing the sock TX queue in sk_set_socket() might cause unexpected out-of-order transmit when called from sock_orphan(), as outstanding packets can pick a different TX queue and bypass the ones already queued. This is undesired in general. More specifically, it breaks the in-order scheduling property guarantee for device-offloaded TLS sockets. Remove the call to sk_tx_queue_clear() in sk_set_socket(), and add it explicitly only where needed. Fixes: e022f0b4a03f ("net: Introduce sk_tx_queue_mapping") Signed-off-by: Tariq Toukan Reviewed-by: Boris Pismenny Signed-off-by: David S. Miller --- include/net/sock.h | 1 - net/core/sock.c | 2 ++ 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/sock.h b/include/net/sock.h index c53cc42b5ab9..3428619faae4 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1848,7 +1848,6 @@ static inline int sk_rx_queue_get(const struct sock *sk) static inline void sk_set_socket(struct sock *sk, struct socket *sock) { - sk_tx_queue_clear(sk); sk->sk_socket = sock; } diff --git a/net/core/sock.c b/net/core/sock.c index 94391da27754..d832c650287c 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1767,6 +1767,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority, cgroup_sk_alloc(&sk->sk_cgrp_data); sock_update_classid(&sk->sk_cgrp_data); sock_update_netprioidx(&sk->sk_cgrp_data); + sk_tx_queue_clear(sk); } return sk; @@ -1990,6 +1991,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) */ sk_refcnt_debug_inc(newsk); sk_set_socket(newsk, NULL); + sk_tx_queue_clear(newsk); RCU_INIT_POINTER(newsk->sk_wq, NULL); if (newsk->sk_prot->sockets_allocated) -- cgit v1.2.3-59-g8ed1b From 3dd4ef1bdbac959bb20faec93937720ddd9917c6 Mon Sep 17 00:00:00 2001 From: Jisheng Zhang Date: Wed, 24 Jun 2020 15:58:24 +0800 Subject: net: phy: make phy_disable_interrupts() non-static We face an issue with rtl8211f, a pin is shared between INTB and PMEB, and the PHY Register Accessible Interrupt is enabled by default, so the INTB/PMEB pin is always active in polling mode case. As Heiner pointed out "I was thinking about calling phy_disable_interrupts() in phy_init_hw(), to have a defined init state as we don't know in which state the PHY is if the PHY driver is loaded. We shouldn't assume that it's the chip power-on defaults, BIOS or boot loader could have changed this. Or in case of dual-boot systems the other OS could leave the PHY in whatever state." Make phy_disable_interrupts() non-static so that it could be used in phy_init_hw() to have a defined init state. Suggested-by: Heiner Kallweit Signed-off-by: Jisheng Zhang Signed-off-by: David S. Miller --- drivers/net/phy/phy.c | 2 +- include/linux/phy.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 1de3938628f4..56cfae950472 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -840,7 +840,7 @@ static void phy_error(struct phy_device *phydev) * phy_disable_interrupts - Disable the PHY interrupts from the PHY side * @phydev: target phy_device struct */ -static int phy_disable_interrupts(struct phy_device *phydev) +int phy_disable_interrupts(struct phy_device *phydev) { int err; diff --git a/include/linux/phy.h b/include/linux/phy.h index 8c05d0fb5c00..b693b609b2f5 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1416,6 +1416,7 @@ int phy_ethtool_ksettings_set(struct phy_device *phydev, int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd); int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd); +int phy_disable_interrupts(struct phy_device *phydev); void phy_request_interrupt(struct phy_device *phydev); void phy_free_interrupt(struct phy_device *phydev); void phy_print_status(struct phy_device *phydev); -- cgit v1.2.3-59-g8ed1b From 1cbf90985f7448f1b0dd630e17ee1070f7d58665 Mon Sep 17 00:00:00 2001 From: David Wilder Date: Mon, 22 Jun 2020 10:10:11 -0700 Subject: netfilter: iptables: Split ipt_unregister_table() into pre_exit and exit helpers. The pre_exit will un-register the underlying hook and .exit will do the table freeing. The netns core does an unconditional synchronize_rcu after the pre_exit hooks insuring no packets are in flight that have picked up the pointer before completing the un-register. Fixes: b9e69e127397 ("netfilter: xtables: don't hook tables by default") Signed-off-by: David Wilder Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter_ipv4/ip_tables.h | 6 ++++++ net/ipv4/netfilter/ip_tables.c | 15 ++++++++++++++- 2 files changed, 20 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/netfilter_ipv4/ip_tables.h b/include/linux/netfilter_ipv4/ip_tables.h index b394bd4f68a3..c4676d6feeff 100644 --- a/include/linux/netfilter_ipv4/ip_tables.h +++ b/include/linux/netfilter_ipv4/ip_tables.h @@ -25,6 +25,12 @@ int ipt_register_table(struct net *net, const struct xt_table *table, const struct ipt_replace *repl, const struct nf_hook_ops *ops, struct xt_table **res); + +void ipt_unregister_table_pre_exit(struct net *net, struct xt_table *table, + const struct nf_hook_ops *ops); + +void ipt_unregister_table_exit(struct net *net, struct xt_table *table); + void ipt_unregister_table(struct net *net, struct xt_table *table, const struct nf_hook_ops *ops); diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index c2670eaa74e6..5bf9fa06aee0 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -1797,11 +1797,22 @@ out_free: return ret; } +void ipt_unregister_table_pre_exit(struct net *net, struct xt_table *table, + const struct nf_hook_ops *ops) +{ + nf_unregister_net_hooks(net, ops, hweight32(table->valid_hooks)); +} + +void ipt_unregister_table_exit(struct net *net, struct xt_table *table) +{ + __ipt_unregister_table(net, table); +} + void ipt_unregister_table(struct net *net, struct xt_table *table, const struct nf_hook_ops *ops) { if (ops) - nf_unregister_net_hooks(net, ops, hweight32(table->valid_hooks)); + ipt_unregister_table_pre_exit(net, table, ops); __ipt_unregister_table(net, table); } @@ -1958,6 +1969,8 @@ static void __exit ip_tables_fini(void) EXPORT_SYMBOL(ipt_register_table); EXPORT_SYMBOL(ipt_unregister_table); +EXPORT_SYMBOL(ipt_unregister_table_pre_exit); +EXPORT_SYMBOL(ipt_unregister_table_exit); EXPORT_SYMBOL(ipt_do_table); module_init(ip_tables_init); module_exit(ip_tables_fini); -- cgit v1.2.3-59-g8ed1b From 57ea5f18882a3d7cf6135fa8c949a37c89395837 Mon Sep 17 00:00:00 2001 From: David Wilder Date: Mon, 22 Jun 2020 10:10:13 -0700 Subject: netfilter: ip6tables: Split ip6t_unregister_table() into pre_exit and exit helpers. The pre_exit will un-register the underlying hook and .exit will do the table freeing. The netns core does an unconditional synchronize_rcu after the pre_exit hooks insuring no packets are in flight that have picked up the pointer before completing the un-register. Fixes: b9e69e127397 ("netfilter: xtables: don't hook tables by default") Signed-off-by: David Wilder Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter_ipv6/ip6_tables.h | 3 +++ net/ipv6/netfilter/ip6_tables.c | 15 ++++++++++++++- 2 files changed, 17 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/netfilter_ipv6/ip6_tables.h b/include/linux/netfilter_ipv6/ip6_tables.h index 8225f7821a29..1547d5f9ae06 100644 --- a/include/linux/netfilter_ipv6/ip6_tables.h +++ b/include/linux/netfilter_ipv6/ip6_tables.h @@ -29,6 +29,9 @@ int ip6t_register_table(struct net *net, const struct xt_table *table, const struct nf_hook_ops *ops, struct xt_table **res); void ip6t_unregister_table(struct net *net, struct xt_table *table, const struct nf_hook_ops *ops); +void ip6t_unregister_table_pre_exit(struct net *net, struct xt_table *table, + const struct nf_hook_ops *ops); +void ip6t_unregister_table_exit(struct net *net, struct xt_table *table); extern unsigned int ip6t_do_table(struct sk_buff *skb, const struct nf_hook_state *state, struct xt_table *table); diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index e27393498ecb..e96a431549bc 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -1807,11 +1807,22 @@ out_free: return ret; } +void ip6t_unregister_table_pre_exit(struct net *net, struct xt_table *table, + const struct nf_hook_ops *ops) +{ + nf_unregister_net_hooks(net, ops, hweight32(table->valid_hooks)); +} + +void ip6t_unregister_table_exit(struct net *net, struct xt_table *table) +{ + __ip6t_unregister_table(net, table); +} + void ip6t_unregister_table(struct net *net, struct xt_table *table, const struct nf_hook_ops *ops) { if (ops) - nf_unregister_net_hooks(net, ops, hweight32(table->valid_hooks)); + ip6t_unregister_table_pre_exit(net, table, ops); __ip6t_unregister_table(net, table); } @@ -1969,6 +1980,8 @@ static void __exit ip6_tables_fini(void) EXPORT_SYMBOL(ip6t_register_table); EXPORT_SYMBOL(ip6t_unregister_table); +EXPORT_SYMBOL(ip6t_unregister_table_pre_exit); +EXPORT_SYMBOL(ip6t_unregister_table_exit); EXPORT_SYMBOL(ip6t_do_table); module_init(ip6_tables_init); -- cgit v1.2.3-59-g8ed1b From 471e39df96b9a4c4ba88a2da9e25a126624d7a9c Mon Sep 17 00:00:00 2001 From: Marcelo Ricardo Leitner Date: Wed, 24 Jun 2020 17:34:18 -0300 Subject: sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket If a socket is set ipv6only, it will still send IPv4 addresses in the INIT and INIT_ACK packets. This potentially misleads the peer into using them, which then would cause association termination. The fix is to not add IPv4 addresses to ipv6only sockets. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: Corey Minyard Signed-off-by: Marcelo Ricardo Leitner Tested-by: Corey Minyard Signed-off-by: David S. Miller --- include/net/sctp/constants.h | 8 +++++--- net/sctp/associola.c | 5 ++++- net/sctp/bind_addr.c | 1 + net/sctp/protocol.c | 3 ++- 4 files changed, 12 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h index 15b4d9aec7ff..122d9e2d8dfd 100644 --- a/include/net/sctp/constants.h +++ b/include/net/sctp/constants.h @@ -353,11 +353,13 @@ enum { ipv4_is_anycast_6to4(a)) /* Flags used for the bind address copy functions. */ -#define SCTP_ADDR6_ALLOWED 0x00000001 /* IPv6 address is allowed by +#define SCTP_ADDR4_ALLOWED 0x00000001 /* IPv4 address is allowed by local sock family */ -#define SCTP_ADDR4_PEERSUPP 0x00000002 /* IPv4 address is supported by +#define SCTP_ADDR6_ALLOWED 0x00000002 /* IPv6 address is allowed by + local sock family */ +#define SCTP_ADDR4_PEERSUPP 0x00000004 /* IPv4 address is supported by peer */ -#define SCTP_ADDR6_PEERSUPP 0x00000004 /* IPv6 address is supported by +#define SCTP_ADDR6_PEERSUPP 0x00000008 /* IPv6 address is supported by peer */ /* Reasons to retransmit. */ diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 72315137d7e7..8d735461fa19 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -1565,12 +1565,15 @@ void sctp_assoc_rwnd_decrease(struct sctp_association *asoc, unsigned int len) int sctp_assoc_set_bind_addr_from_ep(struct sctp_association *asoc, enum sctp_scope scope, gfp_t gfp) { + struct sock *sk = asoc->base.sk; int flags; /* Use scoping rules to determine the subset of addresses from * the endpoint. */ - flags = (PF_INET6 == asoc->base.sk->sk_family) ? SCTP_ADDR6_ALLOWED : 0; + flags = (PF_INET6 == sk->sk_family) ? SCTP_ADDR6_ALLOWED : 0; + if (!inet_v6_ipv6only(sk)) + flags |= SCTP_ADDR4_ALLOWED; if (asoc->peer.ipv4_address) flags |= SCTP_ADDR4_PEERSUPP; if (asoc->peer.ipv6_address) diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c index 53bc61537f44..701c5a4e441d 100644 --- a/net/sctp/bind_addr.c +++ b/net/sctp/bind_addr.c @@ -461,6 +461,7 @@ static int sctp_copy_one_addr(struct net *net, struct sctp_bind_addr *dest, * well as the remote peer. */ if ((((AF_INET == addr->sa.sa_family) && + (flags & SCTP_ADDR4_ALLOWED) && (flags & SCTP_ADDR4_PEERSUPP))) || (((AF_INET6 == addr->sa.sa_family) && (flags & SCTP_ADDR6_ALLOWED) && diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index 092d1afdee0d..cde29f3c7fb3 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -148,7 +148,8 @@ int sctp_copy_local_addr_list(struct net *net, struct sctp_bind_addr *bp, * sock as well as the remote peer. */ if (addr->a.sa.sa_family == AF_INET && - !(copy_flags & SCTP_ADDR4_PEERSUPP)) + (!(copy_flags & SCTP_ADDR4_ALLOWED) || + !(copy_flags & SCTP_ADDR4_PEERSUPP))) continue; if (addr->a.sa.sa_family == AF_INET6 && (!(copy_flags & SCTP_ADDR6_ALLOWED) || -- cgit v1.2.3-59-g8ed1b From 4c342f778fe234e0c2a2601d87fec8ba42f0d2c6 Mon Sep 17 00:00:00 2001 From: Rao Shoaib Date: Thu, 25 Jun 2020 13:46:00 -0700 Subject: rds: transport module should be auto loaded when transport is set MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This enhancement auto loads transport module when the transport is set via SO_RDS_TRANSPORT socket option. Reviewed-by: Ka-Cheong Poon Reviewed-by: Håkon Bugge Signed-off-by: Rao Shoaib Signed-off-by: Somasundaram Krishnasamy Signed-off-by: David S. Miller --- include/uapi/linux/rds.h | 4 +++- net/rds/transport.c | 26 +++++++++++++++++--------- 2 files changed, 20 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/uapi/linux/rds.h b/include/uapi/linux/rds.h index cba368e55863..c21edb966c19 100644 --- a/include/uapi/linux/rds.h +++ b/include/uapi/linux/rds.h @@ -64,10 +64,12 @@ /* supported values for SO_RDS_TRANSPORT */ #define RDS_TRANS_IB 0 -#define RDS_TRANS_IWARP 1 +#define RDS_TRANS_GAP 1 #define RDS_TRANS_TCP 2 #define RDS_TRANS_COUNT 3 #define RDS_TRANS_NONE (~0) +/* don't use RDS_TRANS_IWARP - it is deprecated */ +#define RDS_TRANS_IWARP RDS_TRANS_GAP /* IOCTLS commands for SOL_RDS */ #define SIOCRDSSETTOS (SIOCPROTOPRIVATE) diff --git a/net/rds/transport.c b/net/rds/transport.c index 46f709a4b577..f8001ec80867 100644 --- a/net/rds/transport.c +++ b/net/rds/transport.c @@ -38,6 +38,12 @@ #include "rds.h" #include "loop.h" +static char * const rds_trans_modules[] = { + [RDS_TRANS_IB] = "rds_rdma", + [RDS_TRANS_GAP] = NULL, + [RDS_TRANS_TCP] = "rds_tcp", +}; + static struct rds_transport *transports[RDS_TRANS_COUNT]; static DECLARE_RWSEM(rds_trans_sem); @@ -110,18 +116,20 @@ struct rds_transport *rds_trans_get(int t_type) { struct rds_transport *ret = NULL; struct rds_transport *trans; - unsigned int i; down_read(&rds_trans_sem); - for (i = 0; i < RDS_TRANS_COUNT; i++) { - trans = transports[i]; - - if (trans && trans->t_type == t_type && - (!trans->t_owner || try_module_get(trans->t_owner))) { - ret = trans; - break; - } + trans = transports[t_type]; + if (!trans) { + up_read(&rds_trans_sem); + if (rds_trans_modules[t_type]) + request_module(rds_trans_modules[t_type]); + down_read(&rds_trans_sem); + trans = transports[t_type]; } + if (trans && trans->t_type == t_type && + (!trans->t_owner || try_module_get(trans->t_owner))) + ret = trans; + up_read(&rds_trans_sem); return ret; -- cgit v1.2.3-59-g8ed1b