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authorVadim Fedorenko <vfedorenko@novek.ru>2020-11-24 18:24:46 +0300
committerJakub Kicinski <kuba@kernel.org>2020-11-27 14:32:37 -0800
commit6942a284fb3e6bcb8ab03c98ef5cb048e0fbb3e9 (patch)
tree9d7cac6b79e19d9703e2ec62f1b2943a54c8c4f8 /net/tls
parent594e31bcebd6b8127ab8bcf37068ecef6c996459 (diff)
net/tls: make inline helpers protocol-aware
Inline functions defined in tls.h have a lot of AES-specific constants. Remove these constants and change argument to struct tls_prot_info to have an access to cipher type in later patches Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/tls')
-rw-r--r--net/tls/tls_device.c2
-rw-r--r--net/tls/tls_device_fallback.c13
-rw-r--r--net/tls/tls_sw.c12
3 files changed, 13 insertions, 14 deletions
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index 54d3e161d198..6f93ad5b7200 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -327,7 +327,7 @@ static int tls_device_record_close(struct sock *sk,
/* fill prepend */
tls_fill_prepend(ctx, skb_frag_address(&record->frags[0]),
record->len - prot->overhead_size,
- record_type, prot->version);
+ record_type);
return ret;
}
diff --git a/net/tls/tls_device_fallback.c b/net/tls/tls_device_fallback.c
index 28895333701e..d946817ed065 100644
--- a/net/tls/tls_device_fallback.c
+++ b/net/tls/tls_device_fallback.c
@@ -49,7 +49,8 @@ static int tls_enc_record(struct aead_request *aead_req,
struct crypto_aead *aead, char *aad,
char *iv, __be64 rcd_sn,
struct scatter_walk *in,
- struct scatter_walk *out, int *in_len)
+ struct scatter_walk *out, int *in_len,
+ struct tls_prot_info *prot)
{
unsigned char buf[TLS_HEADER_SIZE + TLS_CIPHER_AES_GCM_128_IV_SIZE];
struct scatterlist sg_in[3];
@@ -73,8 +74,7 @@ static int tls_enc_record(struct aead_request *aead_req,
len -= TLS_CIPHER_AES_GCM_128_IV_SIZE;
tls_make_aad(aad, len - TLS_CIPHER_AES_GCM_128_TAG_SIZE,
- (char *)&rcd_sn, sizeof(rcd_sn), buf[0],
- TLS_1_2_VERSION);
+ (char *)&rcd_sn, buf[0], prot);
memcpy(iv + TLS_CIPHER_AES_GCM_128_SALT_SIZE, buf + TLS_HEADER_SIZE,
TLS_CIPHER_AES_GCM_128_IV_SIZE);
@@ -140,7 +140,7 @@ static struct aead_request *tls_alloc_aead_request(struct crypto_aead *aead,
static int tls_enc_records(struct aead_request *aead_req,
struct crypto_aead *aead, struct scatterlist *sg_in,
struct scatterlist *sg_out, char *aad, char *iv,
- u64 rcd_sn, int len)
+ u64 rcd_sn, int len, struct tls_prot_info *prot)
{
struct scatter_walk out, in;
int rc;
@@ -150,7 +150,7 @@ static int tls_enc_records(struct aead_request *aead_req,
do {
rc = tls_enc_record(aead_req, aead, aad, iv,
- cpu_to_be64(rcd_sn), &in, &out, &len);
+ cpu_to_be64(rcd_sn), &in, &out, &len, prot);
rcd_sn++;
} while (rc == 0 && len);
@@ -348,7 +348,8 @@ static struct sk_buff *tls_enc_skb(struct tls_context *tls_ctx,
payload_len, sync_size, dummy_buf);
if (tls_enc_records(aead_req, ctx->aead_send, sg_in, sg_out, aad, iv,
- rcd_sn, sync_size + payload_len) < 0)
+ rcd_sn, sync_size + payload_len,
+ &tls_ctx->prot_info) < 0)
goto free_nskb;
complete_skb(nskb, skb, tcp_payload_offset);
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 2fe9e2cf8659..6bc757a0a0ad 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -505,7 +505,7 @@ static int tls_do_encryption(struct sock *sk,
memcpy(&rec->iv_data[iv_offset], tls_ctx->tx.iv,
prot->iv_size + prot->salt_size);
- xor_iv_with_seq(prot->version, rec->iv_data, tls_ctx->tx.rec_seq);
+ xor_iv_with_seq(prot, rec->iv_data, tls_ctx->tx.rec_seq);
sge->offset += prot->prepend_size;
sge->length -= prot->prepend_size;
@@ -748,14 +748,13 @@ static int tls_push_record(struct sock *sk, int flags,
sg_chain(rec->sg_aead_out, 2, &msg_en->sg.data[i]);
tls_make_aad(rec->aad_space, msg_pl->sg.size + prot->tail_size,
- tls_ctx->tx.rec_seq, prot->rec_seq_size,
- record_type, prot->version);
+ tls_ctx->tx.rec_seq, record_type, prot);
tls_fill_prepend(tls_ctx,
page_address(sg_page(&msg_en->sg.data[i])) +
msg_en->sg.data[i].offset,
msg_pl->sg.size + prot->tail_size,
- record_type, prot->version);
+ record_type);
tls_ctx->pending_open_record_frags = false;
@@ -1471,13 +1470,12 @@ static int decrypt_internal(struct sock *sk, struct sk_buff *skb,
else
memcpy(iv + iv_offset, tls_ctx->rx.iv, prot->salt_size);
- xor_iv_with_seq(prot->version, iv, tls_ctx->rx.rec_seq);
+ xor_iv_with_seq(prot, iv, tls_ctx->rx.rec_seq);
/* Prepare AAD */
tls_make_aad(aad, rxm->full_len - prot->overhead_size +
prot->tail_size,
- tls_ctx->rx.rec_seq, prot->rec_seq_size,
- ctx->control, prot->version);
+ tls_ctx->rx.rec_seq, ctx->control, prot);
/* Prepare sgin */
sg_init_table(sgin, n_sgin);