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Added SSL/TLS support on connection level.

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This commit is contained in:
Igor Sysoev
2018-09-20 15:05:37 +03:00
parent e964e982fd
commit 96cd68b340
22 changed files with 1104 additions and 778 deletions
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48
src/nxt_conn_read.c
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@@ -39,7 +39,6 @@ nxt_conn_io_read(nxt_task_t *task, void *obj, void *data)
{
ssize_t n;
nxt_conn_t *c;
nxt_work_queue_t *wq;
nxt_event_engine_t *engine;
nxt_work_handler_t handler;
const nxt_conn_state_t *state;
@@ -51,7 +50,13 @@ nxt_conn_io_read(nxt_task_t *task, void *obj, void *data)
engine = task->thread->engine;
/*
* Here c->io->read() is assigned instead of direct nxt_conn_io_read()
* because the function can be called by nxt_kqueue_conn_io_read().
*/
c->socket.read_handler = c->io->read;
state = c->read_state;
c->socket.error_handler = state->error_handler;
if (c->socket.read_ready) {
@@ -75,35 +80,39 @@ nxt_conn_io_read(nxt_task_t *task, void *obj, void *data)
nxt_timer_disable(engine, &c->read_timer);
}
wq = c->read_work_queue;
handler = state->ready_handler;
nxt_work_queue_add(wq, handler, task, c, data);
nxt_work_queue_add(c->read_work_queue,
state->ready_handler, task, c, data);
return;
}
if (n != NXT_AGAIN) {
/* n == 0 or n == NXT_ERROR. */
handler = (n == 0) ? state->close_handler : state->error_handler;
nxt_fd_event_block_read(engine, &c->socket);
nxt_timer_disable(engine, &c->read_timer);
wq = &engine->fast_work_queue;
nxt_work_queue_add(&engine->fast_work_queue,
handler, task, c, data);
return;
}
handler = (n == 0) ? state->close_handler : state->error_handler;
/* n == NXT_AGAIN. */
nxt_work_queue_add(wq, handler, task, c, data);
if (c->socket.read_ready) {
/*
* SSL/TLS library can return NXT_AGAIN if renegotiation
* occured during read operation, it toggled write event
* internally so only read timer should be set.
*/
if (c->read_timer.state == NXT_TIMER_DISABLED) {
nxt_conn_timer(engine, c, state, &c->read_timer);
}
return;
}
}
/*
* Here c->io->read() is assigned instead of direct nxt_conn_io_read()
* because the function can be called by nxt_kqueue_conn_io_read().
*/
c->socket.read_handler = c->io->read;
c->socket.error_handler = state->error_handler;
if (nxt_fd_event_is_disabled(c->socket.read)) {
nxt_fd_event_enable_read(engine, &c->socket);
}
@@ -195,7 +204,7 @@ nxt_conn_io_recv(nxt_conn_t *c, void *buf, size_t size, nxt_uint_t flags)
c->socket.fd, buf, size, flags, n);
if (n > 0) {
if ((size_t) n < size) {
if ((size_t) n < size && (flags & MSG_PEEK) == 0) {
c->socket.read_ready = 0;
}
@@ -204,7 +213,10 @@ nxt_conn_io_recv(nxt_conn_t *c, void *buf, size_t size, nxt_uint_t flags)
if (n == 0) {
c->socket.closed = 1;
c->socket.read_ready = 0;
if ((flags & MSG_PEEK) == 0) {
c->socket.read_ready = 0;
}
return n;
}