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| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-10-03 11:18:59 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-10-04 14:07:07 -0700 |
| commit | 53b4414a7003099f41ab61ef9a452804c025e2c1 (patch) | |
| tree | 8339b6e05b89e835450b9981b31c0a4df6677dce /net/tls | |
| parent | 0eb8745e03c9ed2a7412c7a844ebc4f0e4f80de4 (diff) | |
| download | lwn-53b4414a7003099f41ab61ef9a452804c025e2c1.tar.gz lwn-53b4414a7003099f41ab61ef9a452804c025e2c1.zip | |
net/tls: allow compiling TLS TOE out
TLS "record layer offload" requires TOE, and bypasses most of
the normal networking stack. It is also significantly less
maintained. Allow users to compile it out to avoid issues.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tls')
| -rw-r--r-- | net/tls/Kconfig | 10 | ||||
| -rw-r--r-- | net/tls/Makefile | 3 | ||||
| -rw-r--r-- | net/tls/tls_main.c | 5 |
3 files changed, 16 insertions, 2 deletions
diff --git a/net/tls/Kconfig b/net/tls/Kconfig index e4328b3b72eb..61ec78521a60 100644 --- a/net/tls/Kconfig +++ b/net/tls/Kconfig @@ -26,3 +26,13 @@ config TLS_DEVICE Enable kernel support for HW offload of the TLS protocol. If unsure, say N. + +config TLS_TOE + bool "Transport Layer Security TCP stack bypass" + depends on TLS + default n + help + Enable kernel support for legacy HW offload of the TLS protocol, + which is incompatible with the Linux networking stack semantics. + + If unsure, say N. diff --git a/net/tls/Makefile b/net/tls/Makefile index 322250e912db..95d8c06a14b9 100644 --- a/net/tls/Makefile +++ b/net/tls/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_TLS) += tls.o -tls-y := tls_main.o tls_sw.o tls_toe.o +tls-y := tls_main.o tls_sw.o +tls-$(CONFIG_TLS_TOE) += tls_toe.o tls-$(CONFIG_TLS_DEVICE) += tls_device.o tls_device_fallback.o diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 483dda6c3155..237e58e4928a 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -679,10 +679,11 @@ static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG], prot[TLS_HW][TLS_HW] = prot[TLS_HW][TLS_SW]; #endif - +#ifdef CONFIG_TLS_TOE prot[TLS_HW_RECORD][TLS_HW_RECORD] = *base; prot[TLS_HW_RECORD][TLS_HW_RECORD].hash = tls_toe_hash; prot[TLS_HW_RECORD][TLS_HW_RECORD].unhash = tls_toe_unhash; +#endif } static int tls_init(struct sock *sk) @@ -692,8 +693,10 @@ static int tls_init(struct sock *sk) tls_build_proto(sk); +#ifdef CONFIG_TLS_TOE if (tls_toe_bypass(sk)) return 0; +#endif /* The TLS ulp is currently supported only for TCP sockets * in ESTABLISHED state. |