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net/tls: build_protos moved to common routine

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build protos is required for tls_hw_prot also hence moved to
'tls_build_proto' and called as required from tls_init
and tls_hw_proto. This is required since build_protos
for v4 is moved from tls_register to tls_init in
commit <28cb6f1eaffdc5a6a9707cac55f4a43aa3fd7895>

Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Atul Gupta 2019-01-17 20:55:53 -08:00 committed by David S. Miller
parent 856c395cfa
commit 63a6b3fee4
1 changed files with 32 additions and 22 deletions
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54
net/tls/tls_main.c
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@ -61,6 +61,8 @@ static LIST_HEAD(device_list);
static DEFINE_SPINLOCK(device_spinlock); static DEFINE_SPINLOCK(device_spinlock);
static struct proto tls_prots[TLS_NUM_PROTS][TLS_NUM_CONFIG][TLS_NUM_CONFIG]; static struct proto tls_prots[TLS_NUM_PROTS][TLS_NUM_CONFIG][TLS_NUM_CONFIG];
static struct proto_ops tls_sw_proto_ops; static struct proto_ops tls_sw_proto_ops;
static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG],
struct proto *base);
static void update_sk_prot(struct sock *sk, struct tls_context *ctx) static void update_sk_prot(struct sock *sk, struct tls_context *ctx)
{ {
@ -551,6 +553,32 @@ static struct tls_context *create_ctx(struct sock *sk)
return ctx; return ctx;
} }
static void tls_build_proto(struct sock *sk)
{
int ip_ver = sk->sk_family == AF_INET6 ? TLSV6 : TLSV4;
/* Build IPv6 TLS whenever the address of tcpv6 _prot changes */
if (ip_ver == TLSV6 &&
unlikely(sk->sk_prot != smp_load_acquire(&saved_tcpv6_prot))) {
mutex_lock(&tcpv6_prot_mutex);
if (likely(sk->sk_prot != saved_tcpv6_prot)) {
build_protos(tls_prots[TLSV6], sk->sk_prot);
smp_store_release(&saved_tcpv6_prot, sk->sk_prot);
}
mutex_unlock(&tcpv6_prot_mutex);
}
if (ip_ver == TLSV4 &&
unlikely(sk->sk_prot != smp_load_acquire(&saved_tcpv4_prot))) {
mutex_lock(&tcpv4_prot_mutex);
if (likely(sk->sk_prot != saved_tcpv4_prot)) {
build_protos(tls_prots[TLSV4], sk->sk_prot);
smp_store_release(&saved_tcpv4_prot, sk->sk_prot);
}
mutex_unlock(&tcpv4_prot_mutex);
}
}
static int tls_hw_prot(struct sock *sk) static int tls_hw_prot(struct sock *sk)
{ {
struct tls_context *ctx; struct tls_context *ctx;
@ -564,12 +592,15 @@ static int tls_hw_prot(struct sock *sk)
if (!ctx) if (!ctx)
goto out; goto out;
spin_unlock_bh(&device_spinlock);
tls_build_proto(sk);
ctx->hash = sk->sk_prot->hash; ctx->hash = sk->sk_prot->hash;
ctx->unhash = sk->sk_prot->unhash; ctx->unhash = sk->sk_prot->unhash;
ctx->sk_proto_close = sk->sk_prot->close; ctx->sk_proto_close = sk->sk_prot->close;
ctx->rx_conf = TLS_HW_RECORD; ctx->rx_conf = TLS_HW_RECORD;
ctx->tx_conf = TLS_HW_RECORD; ctx->tx_conf = TLS_HW_RECORD;
update_sk_prot(sk, ctx); update_sk_prot(sk, ctx);
spin_lock_bh(&device_spinlock);
rc = 1; rc = 1;
break; break;
} }
@ -668,7 +699,6 @@ static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG],
static int tls_init(struct sock *sk) static int tls_init(struct sock *sk)
{ {
int ip_ver = sk->sk_family == AF_INET6 ? TLSV6 : TLSV4;
struct tls_context *ctx; struct tls_context *ctx;
int rc = 0; int rc = 0;
@ -691,27 +721,7 @@ static int tls_init(struct sock *sk)
goto out; goto out;
} }
/* Build IPv6 TLS whenever the address of tcpv6 _prot changes */ tls_build_proto(sk);
if (ip_ver == TLSV6 &&
unlikely(sk->sk_prot != smp_load_acquire(&saved_tcpv6_prot))) {
mutex_lock(&tcpv6_prot_mutex);
if (likely(sk->sk_prot != saved_tcpv6_prot)) {
build_protos(tls_prots[TLSV6], sk->sk_prot);
smp_store_release(&saved_tcpv6_prot, sk->sk_prot);
}
mutex_unlock(&tcpv6_prot_mutex);
}
if (ip_ver == TLSV4 &&
unlikely(sk->sk_prot != smp_load_acquire(&saved_tcpv4_prot))) {
mutex_lock(&tcpv4_prot_mutex);
if (likely(sk->sk_prot != saved_tcpv4_prot)) {
build_protos(tls_prots[TLSV4], sk->sk_prot);
smp_store_release(&saved_tcpv4_prot, sk->sk_prot);
}
mutex_unlock(&tcpv4_prot_mutex);
}
ctx->tx_conf = TLS_BASE; ctx->tx_conf = TLS_BASE;
ctx->rx_conf = TLS_BASE; ctx->rx_conf = TLS_BASE;
update_sk_prot(sk, ctx); update_sk_prot(sk, ctx);