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tls: rx: don't store the decryption status in socket context

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Similar justification to previous change, the information
about decryption status belongs in the skb.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2022-04-07 20:38:17 -07:00 committed by David S. Miller
parent c3f6bb7413
commit 7dc59c33d6
4 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/net/strparser.h
View File

@ -72,6 +72,7 @@ struct sk_skb_cb {
u64 temp_reg; u64 temp_reg;
struct tls_msg { struct tls_msg {
u8 control; u8 control;
u8 decrypted;
} tls; } tls;
}; };

1
include/net/tls.h
View File

@ -148,7 +148,6 @@ struct tls_sw_context_rx {
struct sk_buff *recv_pkt; struct sk_buff *recv_pkt;
u8 async_capable:1; u8 async_capable:1;
u8 decrypted:1;
atomic_t decrypt_pending; atomic_t decrypt_pending;
/* protect crypto_wait with decrypt_pending*/ /* protect crypto_wait with decrypt_pending*/
spinlock_t decrypt_compl_lock; spinlock_t decrypt_compl_lock;

3
net/tls/tls_device.c
View File

@ -948,6 +948,7 @@ int tls_device_decrypted(struct sock *sk, struct tls_context *tls_ctx,
struct sk_buff *skb, struct strp_msg *rxm) struct sk_buff *skb, struct strp_msg *rxm)
{ {
struct tls_offload_context_rx *ctx = tls_offload_ctx_rx(tls_ctx); struct tls_offload_context_rx *ctx = tls_offload_ctx_rx(tls_ctx);
struct tls_msg *tlm = tls_msg(skb);
int is_decrypted = skb->decrypted; int is_decrypted = skb->decrypted;
int is_encrypted = !is_decrypted; int is_encrypted = !is_decrypted;
struct sk_buff *skb_iter; struct sk_buff *skb_iter;
@ -962,7 +963,7 @@ int tls_device_decrypted(struct sock *sk, struct tls_context *tls_ctx,
tls_ctx->rx.rec_seq, rxm->full_len, tls_ctx->rx.rec_seq, rxm->full_len,
is_encrypted, is_decrypted); is_encrypted, is_decrypted);
ctx->sw.decrypted |= is_decrypted; tlm->decrypted |= is_decrypted;
if (unlikely(test_bit(TLS_RX_DEV_DEGRADED, &tls_ctx->flags))) { if (unlikely(test_bit(TLS_RX_DEV_DEGRADED, &tls_ctx->flags))) {
if (likely(is_encrypted || is_decrypted)) if (likely(is_encrypted || is_decrypted))

10
net/tls/tls_sw.c
View File

@ -1565,9 +1565,10 @@ static int decrypt_skb_update(struct sock *sk, struct sk_buff *skb,
struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx); struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
struct tls_prot_info *prot = &tls_ctx->prot_info; struct tls_prot_info *prot = &tls_ctx->prot_info;
struct strp_msg *rxm = strp_msg(skb); struct strp_msg *rxm = strp_msg(skb);
struct tls_msg *tlm = tls_msg(skb);
int pad, err = 0; int pad, err = 0;
if (!ctx->decrypted) { if (!tlm->decrypted) {
if (tls_ctx->rx_conf == TLS_HW) { if (tls_ctx->rx_conf == TLS_HW) {
err = tls_device_decrypted(sk, tls_ctx, skb, rxm); err = tls_device_decrypted(sk, tls_ctx, skb, rxm);
if (err < 0) if (err < 0)
@ -1575,7 +1576,7 @@ static int decrypt_skb_update(struct sock *sk, struct sk_buff *skb,
} }
/* Still not decrypted after tls_device */ /* Still not decrypted after tls_device */
if (!ctx->decrypted) { if (!tlm->decrypted) {
err = decrypt_internal(sk, skb, dest, NULL, chunk, zc, err = decrypt_internal(sk, skb, dest, NULL, chunk, zc,
async); async);
if (err < 0) { if (err < 0) {
@ -1599,7 +1600,7 @@ static int decrypt_skb_update(struct sock *sk, struct sk_buff *skb,
rxm->offset += prot->prepend_size; rxm->offset += prot->prepend_size;
rxm->full_len -= prot->overhead_size; rxm->full_len -= prot->overhead_size;
tls_advance_record_sn(sk, prot, &tls_ctx->rx); tls_advance_record_sn(sk, prot, &tls_ctx->rx);
ctx->decrypted = 1; tlm->decrypted = 1;
ctx->saved_data_ready(sk); ctx->saved_data_ready(sk);
} else { } else {
*zc = false; *zc = false;
@ -2144,8 +2145,9 @@ static void tls_queue(struct strparser *strp, struct sk_buff *skb)
{ {
struct tls_context *tls_ctx = tls_get_ctx(strp->sk); struct tls_context *tls_ctx = tls_get_ctx(strp->sk);
struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx); struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
struct tls_msg *tlm = tls_msg(skb);
ctx->decrypted = 0; tlm->decrypted = 0;
ctx->recv_pkt = skb; ctx->recv_pkt = skb;
strp_pause(strp); strp_pause(strp);