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authorLinus Torvalds <torvalds@linux-foundation.org>2022-08-03 16:29:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-08-03 16:29:08 -0700
commitf86d1fbbe7858884d6754534a0afbb74fc30bc26 (patch)
treef61796870edefbe77d495e9d719c68af1d14275b /net/tls/tls_main.c
parent526942b8134cc34d25d27f95dfff98b8ce2f6fcd (diff)
parent7c6327c77d509e78bff76f2a4551fcfee851682e (diff)
Merge tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking changes from Paolo Abeni: "Core: - Refactor the forward memory allocation to better cope with memory pressure with many open sockets, moving from a per socket cache to a per-CPU one - Replace rwlocks with RCU for better fairness in ping, raw sockets and IP multicast router. - Network-side support for IO uring zero-copy send. - A few skb drop reason improvements, including codegen the source file with string mapping instead of using macro magic. - Rename reference tracking helpers to a more consistent netdev_* schema. - Adapt u64_stats_t type to address load/store tearing issues. - Refine debug helper usage to reduce the log noise caused by bots. BPF: - Improve socket map performance, avoiding skb cloning on read operation. - Add support for 64 bits enum, to match types exposed by kernel. - Introduce support for sleepable uprobes program. - Introduce support for enum textual representation in libbpf. - New helpers to implement synproxy with eBPF/XDP. - Improve loop performances, inlining indirect calls when possible. - Removed all the deprecated libbpf APIs. - Implement new eBPF-based LSM flavor. - Add type match support, which allow accurate queries to the eBPF used types. - A few TCP congetsion control framework usability improvements. - Add new infrastructure to manipulate CT entries via eBPF programs. - Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel function. Protocols: - Introduce per network namespace lookup tables for unix sockets, increasing scalability and reducing contention. - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support. - Add support to forciby close TIME_WAIT TCP sockets via user-space tools. - Significant performance improvement for the TLS 1.3 receive path, both for zero-copy and not-zero-copy. - Support for changing the initial MTPCP subflow priority/backup status - Introduce virtually contingus buffers for sockets over RDMA, to cope better with memory pressure. - Extend CAN ethtool support with timestamping capabilities - Refactor CAN build infrastructure to allow building only the needed features. Driver API: - Remove devlink mutex to allow parallel commands on multiple links. - Add support for pause stats in distributed switch. - Implement devlink helpers to query and flash line cards. - New helper for phy mode to register conversion. New hardware / drivers: - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro. - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch. - Ethernet DSA driver for the Microchip LAN937x switch. - Ethernet PHY driver for the Aquantia AQR113C EPHY. - CAN driver for the OBD-II ELM327 interface. - CAN driver for RZ/N1 SJA1000 CAN controller. - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device. Drivers: - Intel Ethernet NICs: - i40e: add support for vlan pruning - i40e: add support for XDP framented packets - ice: improved vlan offload support - ice: add support for PPPoE offload - Mellanox Ethernet (mlx5) - refactor packet steering offload for performance and scalability - extend support for TC offload - refactor devlink code to clean-up the locking schema - support stacked vlans for bridge offloads - use TLS objects pool to improve connection rate - Netronome Ethernet NICs (nfp): - extend support for IPv6 fields mangling offload - add support for vepa mode in HW bridge - better support for virtio data path acceleration (VDPA) - enable TSO by default - Microsoft vNIC driver (mana) - add support for XDP redirect - Others Ethernet drivers: - bonding: add per-port priority support - microchip lan743x: extend phy support - Fungible funeth: support UDP segmentation offload and XDP xmit - Solarflare EF100: add support for virtual function representors - MediaTek SoC: add XDP support - Mellanox Ethernet/IB switch (mlxsw): - dropped support for unreleased H/W (XM router). - improved stats accuracy - unified bridge model coversion improving scalability (parts 1-6) - support for PTP in Spectrum-2 asics - Broadcom PHYs - add PTP support for BCM54210E - add support for the BCM53128 internal PHY - Marvell Ethernet switches (prestera): - implement support for multicast forwarding offload - Embedded Ethernet switches: - refactor OcteonTx MAC filter for better scalability - improve TC H/W offload for the Felix driver - refactor the Microchip ksz8 and ksz9477 drivers to share the probe code (parts 1, 2), add support for phylink mac configuration - Other WiFi: - Microchip wilc1000: diable WEP support and enable WPA3 - Atheros ath10k: encapsulation offload support Old code removal: - Neterion vxge ethernet driver: this is untouched since more than 10 years" * tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits) doc: sfp-phylink: Fix a broken reference wireguard: selftests: support UML wireguard: allowedips: don't corrupt stack when detecting overflow wireguard: selftests: update config fragments wireguard: ratelimiter: use hrtimer in selftest net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ net: usb: ax88179_178a: Bind only to vendor-specific interface selftests: net: fix IOAM test skip return code net: usb: make USB_RTL8153_ECM non user configurable net: marvell: prestera: remove reduntant code octeontx2-pf: Reduce minimum mtu size to 60 net: devlink: Fix missing mutex_unlock() call net/tls: Remove redundant workqueue flush before destroy net: txgbe: Fix an error handling path in txgbe_probe() net: dsa: Fix spelling mistakes and cleanup code Documentation: devlink: add add devlink-selftests to the table of contents dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock net: ionic: fix error check for vlan flags in ionic_set_nic_features() net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr() nfp: flower: add support for tunnel offload without key ID ...
Diffstat (limited to 'net/tls/tls_main.c')
-rw-r--r--net/tls/tls_main.c117
1 files changed, 111 insertions, 6 deletions
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index d80ab3d1764e..08ddf9d837ae 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -45,6 +45,8 @@
#include <net/tls.h>
#include <net/tls_toe.h>
+#include "tls.h"
+
MODULE_AUTHOR("Mellanox Technologies");
MODULE_DESCRIPTION("Transport Layer Security Support");
MODULE_LICENSE("Dual BSD/GPL");
@@ -164,8 +166,8 @@ static int tls_handle_open_record(struct sock *sk, int flags)
return 0;
}
-int tls_proccess_cmsg(struct sock *sk, struct msghdr *msg,
- unsigned char *record_type)
+int tls_process_cmsg(struct sock *sk, struct msghdr *msg,
+ unsigned char *record_type)
{
struct cmsghdr *cmsg;
int rc = -EINVAL;
@@ -533,6 +535,36 @@ static int do_tls_getsockopt_tx_zc(struct sock *sk, char __user *optval,
return 0;
}
+static int do_tls_getsockopt_no_pad(struct sock *sk, char __user *optval,
+ int __user *optlen)
+{
+ struct tls_context *ctx = tls_get_ctx(sk);
+ int value, len;
+
+ if (ctx->prot_info.version != TLS_1_3_VERSION)
+ return -EINVAL;
+
+ if (get_user(len, optlen))
+ return -EFAULT;
+ if (len < sizeof(value))
+ return -EINVAL;
+
+ lock_sock(sk);
+ value = -EINVAL;
+ if (ctx->rx_conf == TLS_SW || ctx->rx_conf == TLS_HW)
+ value = ctx->rx_no_pad;
+ release_sock(sk);
+ if (value < 0)
+ return value;
+
+ if (put_user(sizeof(value), optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &value, sizeof(value)))
+ return -EFAULT;
+
+ return 0;
+}
+
static int do_tls_getsockopt(struct sock *sk, int optname,
char __user *optval, int __user *optlen)
{
@@ -547,6 +579,9 @@ static int do_tls_getsockopt(struct sock *sk, int optname,
case TLS_TX_ZEROCOPY_RO:
rc = do_tls_getsockopt_tx_zc(sk, optval, optlen);
break;
+ case TLS_RX_EXPECT_NO_PAD:
+ rc = do_tls_getsockopt_no_pad(sk, optval, optlen);
+ break;
default:
rc = -ENOPROTOOPT;
break;
@@ -690,6 +725,10 @@ static int do_tls_setsockopt_conf(struct sock *sk, sockptr_t optval,
if (tx) {
ctx->sk_write_space = sk->sk_write_space;
sk->sk_write_space = tls_write_space;
+ } else {
+ struct tls_sw_context_rx *rx_ctx = tls_sw_ctx_rx(ctx);
+
+ tls_strp_check_rcv(&rx_ctx->strp);
}
return 0;
@@ -718,6 +757,38 @@ static int do_tls_setsockopt_tx_zc(struct sock *sk, sockptr_t optval,
return 0;
}
+static int do_tls_setsockopt_no_pad(struct sock *sk, sockptr_t optval,
+ unsigned int optlen)
+{
+ struct tls_context *ctx = tls_get_ctx(sk);
+ u32 val;
+ int rc;
+
+ if (ctx->prot_info.version != TLS_1_3_VERSION ||
+ sockptr_is_null(optval) || optlen < sizeof(val))
+ return -EINVAL;
+
+ rc = copy_from_sockptr(&val, optval, sizeof(val));
+ if (rc)
+ return -EFAULT;
+ if (val > 1)
+ return -EINVAL;
+ rc = check_zeroed_sockptr(optval, sizeof(val), optlen - sizeof(val));
+ if (rc < 1)
+ return rc == 0 ? -EINVAL : rc;
+
+ lock_sock(sk);
+ rc = -EINVAL;
+ if (ctx->rx_conf == TLS_SW || ctx->rx_conf == TLS_HW) {
+ ctx->rx_no_pad = val;
+ tls_update_rx_zc_capable(ctx);
+ rc = 0;
+ }
+ release_sock(sk);
+
+ return rc;
+}
+
static int do_tls_setsockopt(struct sock *sk, int optname, sockptr_t optval,
unsigned int optlen)
{
@@ -736,6 +807,9 @@ static int do_tls_setsockopt(struct sock *sk, int optname, sockptr_t optval,
rc = do_tls_setsockopt_tx_zc(sk, optval, optlen);
release_sock(sk);
break;
+ case TLS_RX_EXPECT_NO_PAD:
+ rc = do_tls_setsockopt_no_pad(sk, optval, optlen);
+ break;
default:
rc = -ENOPROTOOPT;
break;
@@ -934,6 +1008,23 @@ static void tls_update(struct sock *sk, struct proto *p,
}
}
+static u16 tls_user_config(struct tls_context *ctx, bool tx)
+{
+ u16 config = tx ? ctx->tx_conf : ctx->rx_conf;
+
+ switch (config) {
+ case TLS_BASE:
+ return TLS_CONF_BASE;
+ case TLS_SW:
+ return TLS_CONF_SW;
+ case TLS_HW:
+ return TLS_CONF_HW;
+ case TLS_HW_RECORD:
+ return TLS_CONF_HW_RECORD;
+ }
+ return 0;
+}
+
static int tls_get_info(const struct sock *sk, struct sk_buff *skb)
{
u16 version, cipher_type;
@@ -976,6 +1067,11 @@ static int tls_get_info(const struct sock *sk, struct sk_buff *skb)
if (err)
goto nla_failure;
}
+ if (ctx->rx_no_pad) {
+ err = nla_put_flag(skb, TLS_INFO_RX_NO_PAD);
+ if (err)
+ goto nla_failure;
+ }
rcu_read_unlock();
nla_nest_end(skb, start);
@@ -997,6 +1093,7 @@ static size_t tls_get_info_size(const struct sock *sk)
nla_total_size(sizeof(u16)) + /* TLS_INFO_RXCONF */
nla_total_size(sizeof(u16)) + /* TLS_INFO_TXCONF */
nla_total_size(0) + /* TLS_INFO_ZC_RO_TX */
+ nla_total_size(0) + /* TLS_INFO_RX_NO_PAD */
0;
return size;
@@ -1048,20 +1145,28 @@ static int __init tls_register(void)
if (err)
return err;
+ err = tls_strp_dev_init();
+ if (err)
+ goto err_pernet;
+
err = tls_device_init();
- if (err) {
- unregister_pernet_subsys(&tls_proc_ops);
- return err;
- }
+ if (err)
+ goto err_strp;
tcp_register_ulp(&tcp_tls_ulp_ops);
return 0;
+err_strp:
+ tls_strp_dev_exit();
+err_pernet:
+ unregister_pernet_subsys(&tls_proc_ops);
+ return err;
}
static void __exit tls_unregister(void)
{
tcp_unregister_ulp(&tcp_tls_ulp_ops);
+ tls_strp_dev_exit();
tls_device_cleanup();
unregister_pernet_subsys(&tls_proc_ops);
}