}
static inline int
-picotls_do_handshake (picotls_ctx_t * ptls_ctx, session_t * tls_session,
- u8 * input, int input_len)
+picotls_do_handshake (picotls_ctx_t *ptls_ctx, session_t *tcp_session)
{
+ int rv = PTLS_ERROR_IN_PROGRESS, write = 0, i = 0, read = 0, len;
+ svm_fifo_t *tcp_rx_fifo = tcp_session->rx_fifo;
+ ptls_buffer_t *buf = &ptls_ctx->read_buffer;
+ const int n_segs = 2, max_len = 16384;
ptls_t *tls = ptls_ctx->tls;
- ptls_buffer_t buf;
- int rv = PTLS_ERROR_IN_PROGRESS;
- int write = 0, off;
+ svm_fifo_seg_t fs[n_segs];
+ uword deq_now;
+
+ ptls_buffer_init (buf, "", 0);
+
+ len = svm_fifo_segments (tcp_rx_fifo, 0, fs, n_segs, max_len);
+ if (len <= 0)
+ return 0;
- do
+ while (read < len && i < n_segs)
{
- off = 0;
- do
+ deq_now = fs[i].len;
+ rv = ptls_handshake (tls, buf, fs[i].data, &deq_now, NULL);
+
+ write += picotls_try_handshake_write (ptls_ctx, tcp_session, buf);
+ read += deq_now;
+
+ if (!(rv == 0 || rv == PTLS_ERROR_IN_PROGRESS))
{
- ptls_buffer_init (&buf, "", 0);
- size_t consumed = input_len - off;
- rv = ptls_handshake (tls, &buf, input + off, &consumed, NULL);
- off += consumed;
- ptls_ctx->rx_offset += consumed;
- if ((rv == 0 || rv == PTLS_ERROR_IN_PROGRESS) && buf.off != 0)
- {
- write = picotls_try_handshake_write (ptls_ctx, tls_session,
- &buf);
- }
- ptls_buffer_dispose (&buf);
+ clib_error ("unexpected error %u", rv);
+ break;
}
- while (rv == PTLS_ERROR_IN_PROGRESS && input_len != off);
+
+ if (!rv)
+ break;
+
+ if (deq_now < fs[i].len)
+ {
+ fs[i].data += deq_now;
+ fs[i].len -= deq_now;
+ }
+ else
+ i++;
}
- while (rv == PTLS_ERROR_IN_PROGRESS);
+
+ if (read)
+ svm_fifo_dequeue_drop (tcp_rx_fifo, read);
+
+ ptls_buffer_dispose (buf);
return write;
}
static inline int
-picotls_ctx_read (tls_ctx_t * ctx, session_t * tls_session)
+picotls_ctx_read (tls_ctx_t *ctx, session_t *tcp_session)
{
picotls_ctx_t *ptls_ctx = (picotls_ctx_t *) ctx;
- int from_tls_len = 0, off, crypto_len, ret;
- u32 deq_max, deq_now;
- u32 enq_max;
ptls_buffer_t *buf = &ptls_ctx->read_buffer;
- svm_fifo_t *tls_rx_fifo, *app_rx_fifo;
+ int off = 0, ret, i = 0, read = 0, len;
+ const int n_segs = 4, max_len = 32768;
+ svm_fifo_t *tcp_rx_fifo, *app_rx_fifo;
+ svm_fifo_seg_t fs[n_segs];
session_t *app_session;
+ uword deq_now;
- tls_rx_fifo = tls_session->rx_fifo;
-
- if (!picotls_handshake_is_over (ctx))
+ if (PREDICT_FALSE (!ptls_handshake_is_complete (ptls_ctx->tls)))
{
- deq_max = svm_fifo_max_dequeue_cons (tls_rx_fifo);
- if (!deq_max)
- goto done_hs;
-
- vec_validate (ptls_ctx->rx_content, deq_max);
- ptls_ctx->rx_offset = 0;
- ptls_ctx->rx_len = 0;
-
- off = svm_fifo_dequeue (tls_rx_fifo, deq_max, TLS_RX_LEN (ptls_ctx));
- from_tls_len += off;
- ptls_ctx->rx_len += off;
-
- picotls_do_handshake (ptls_ctx, tls_session, TLS_RX_OFFSET (ptls_ctx),
- from_tls_len);
+ picotls_do_handshake (ptls_ctx, tcp_session);
if (picotls_handshake_is_over (ctx))
ret = ptls_is_server (ptls_ctx->tls) ?
tls_notify_app_accept (ctx) :
tls_notify_app_connected (ctx, SESSION_E_NONE);
- done_hs:
- if (!TLS_RX_IS_LEFT (ptls_ctx))
+ if (!svm_fifo_max_dequeue (tcp_session->rx_fifo))
return 0;
}
+ tcp_rx_fifo = tcp_session->rx_fifo;
app_session = session_get_from_handle (ctx->app_session_handle);
app_rx_fifo = app_session->rx_fifo;
if (TLS_READ_IS_LEFT (ptls_ctx))
- goto enq_buf;
+ goto do_enq;
+
+ len = svm_fifo_segments (tcp_rx_fifo, 0, fs, n_segs, max_len);
+ if (len <= 0)
+ goto final_checks;
ptls_buffer_init (buf, "", 0);
ptls_ctx->read_buffer_offset = 0;
- if (!TLS_RX_IS_LEFT (ptls_ctx))
+ while (read < len && i < n_segs)
{
- deq_max = svm_fifo_max_dequeue_cons (tls_rx_fifo);
- if (!deq_max)
- goto app_fifo;
-
- deq_now = clib_min (deq_max, svm_fifo_max_read_chunk (tls_rx_fifo));
-
- if (PREDICT_FALSE (deq_now < deq_max))
+ deq_now = fs[i].len;
+ ret = ptls_receive (ptls_ctx->tls, buf, fs[i].data, &deq_now);
+ ASSERT (ret == 0 || ret == PTLS_ERROR_IN_PROGRESS);
+ read += deq_now;
+ if (deq_now < fs[i].len)
{
- off =
- svm_fifo_dequeue (tls_rx_fifo, deq_max, TLS_RX_LEN (ptls_ctx));
- from_tls_len += off;
- ptls_ctx->rx_len += off;
+ fs[i].data += deq_now;
+ fs[i].len -= deq_now;
}
else
- {
- ret =
- ptls_receive (ptls_ctx->tls, buf, svm_fifo_head (tls_rx_fifo),
- (size_t *) & deq_now);
- svm_fifo_dequeue_drop (tls_rx_fifo, deq_now);
- goto enq_buf;
- }
+ i++;
}
-app_fifo:
-
- enq_max = svm_fifo_max_enqueue_prod (app_rx_fifo);
- if (!enq_max)
- goto final;
-
- crypto_len = clib_min (enq_max, TLS_RX_LEFT_LEN (ptls_ctx));
- off = 0;
+ if (read)
+ svm_fifo_dequeue_drop (tcp_rx_fifo, read);
- do
+ if (!TLS_READ_LEFT_LEN (ptls_ctx))
{
- size_t consumed = crypto_len - off;
- ret =
- ptls_receive (ptls_ctx->tls, buf,
- TLS_RX_OFFSET (ptls_ctx), &consumed);
- off += consumed;
- ptls_ctx->rx_offset += off;
+ ptls_buffer_dispose (buf);
+ goto final_checks;
}
- while (ret == 0 && off < crypto_len);
-enq_buf:
+do_enq:
- off =
- svm_fifo_enqueue (app_rx_fifo, TLS_READ_LEFT_LEN (ptls_ctx),
- TLS_READ_OFFSET (ptls_ctx));
- if (off < 0)
+ len = TLS_READ_LEFT_LEN (ptls_ctx);
+ off = svm_fifo_enqueue (app_rx_fifo, len, TLS_READ_OFFSET (ptls_ctx));
+ if (off != len)
{
- tls_add_vpp_q_builtin_rx_evt (tls_session);
- return 0;
+ if (off < 0)
+ {
+ off = 0;
+ goto final_checks;
+ }
+ ptls_ctx->read_buffer_offset += off;
}
-
- ptls_ctx->read_buffer_offset += off;
- if (!TLS_RX_IS_LEFT (ptls_ctx))
+ else
{
- ptls_ctx->rx_len = 0;
- ptls_ctx->rx_offset = 0;
+ ptls_buffer_dispose (buf);
}
-final:
- ptls_buffer_dispose (buf);
-
if (app_session->session_state >= SESSION_STATE_READY)
tls_notify_app_enqueue (ctx, app_session);
- if (TLS_RX_IS_LEFT (ptls_ctx) || TLS_READ_IS_LEFT (ptls_ctx)
- || svm_fifo_max_dequeue (tls_rx_fifo))
- tls_add_vpp_q_builtin_rx_evt (tls_session);
+final_checks:
- return from_tls_len;
+ if (TLS_READ_IS_LEFT (ptls_ctx) || svm_fifo_max_dequeue (tcp_rx_fifo))
+ tls_add_vpp_q_builtin_rx_evt (tcp_session);
+
+ return off;
}
static inline int
ptls_buffer_init (&ptls_ctx->write_buffer, "", 0);
ptls_ctx->write_buffer_offset = 0;
}
-
}
deq_max = svm_fifo_max_dequeue_cons (app_tx_fifo);
Code Review / vpp.git / blobdiff