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libwebsockets/lib/tls/tls.c
Andy Green 89cb55ea58 tls: split out common, openssl and mbedtls code
- introduce lib/tls/mbedtls lib/tls/openssl
 - move wrapper into lib/tls/mbedtls/wrapper
 - introduce private helpers to hide backend

This patch doesn't replace or remove the wrapper, it moves it
to lib/tls/mbedtls/wrapper.

But it should be now that the ONLY functions directly consuming
wrapper apis are isolated in

  - lib/tls/mbedtls/client.c (180 lines)
  - lib/tls/mbedtls/server.c (317 lines)
  - lib/tls/mbedtls/ssl.c    (325 lines)

In particular there are no uses of openssl or mbedtls-related
constants outside of ./lib/tls any more.
2017-10-25 07:17:29 +08:00

122 lines
3.2 KiB
C

/*
* libwebsockets - small server side websockets and web server implementation
*
* Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation:
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#include "private-libwebsockets.h"
int lws_alloc_vfs_file(struct lws_context *context, const char *filename, uint8_t **buf,
lws_filepos_t *amount)
{
lws_filepos_t len;
lws_fop_flags_t flags = LWS_O_RDONLY;
lws_fop_fd_t fops_fd = lws_vfs_file_open(
lws_get_fops(context), filename, &flags);
int ret = 1;
if (!fops_fd)
return 1;
len = lws_vfs_get_length(fops_fd);
*buf = lws_malloc((size_t)len, "lws_alloc_vfs_file");
if (!*buf)
goto bail;
if (lws_vfs_file_read(fops_fd, amount, *buf, len))
goto bail;
ret = 0;
bail:
lws_vfs_file_close(&fops_fd);
return ret;
}
int
lws_ssl_anybody_has_buffered_read_tsi(struct lws_context *context, int tsi)
{
struct lws_context_per_thread *pt = &context->pt[tsi];
struct lws *wsi, *wsi_next;
wsi = pt->pending_read_list;
while (wsi) {
wsi_next = wsi->pending_read_list_next;
pt->fds[wsi->position_in_fds_table].revents |=
pt->fds[wsi->position_in_fds_table].events & LWS_POLLIN;
if (pt->fds[wsi->position_in_fds_table].revents & LWS_POLLIN)
return 1;
wsi = wsi_next;
}
return 0;
}
LWS_VISIBLE void
lws_ssl_remove_wsi_from_buffered_list(struct lws *wsi)
{
struct lws_context *context = wsi->context;
struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
if (!wsi->pending_read_list_prev &&
!wsi->pending_read_list_next &&
pt->pending_read_list != wsi)
/* we are not on the list */
return;
/* point previous guy's next to our next */
if (!wsi->pending_read_list_prev)
pt->pending_read_list = wsi->pending_read_list_next;
else
wsi->pending_read_list_prev->pending_read_list_next =
wsi->pending_read_list_next;
/* point next guy's previous to our previous */
if (wsi->pending_read_list_next)
wsi->pending_read_list_next->pending_read_list_prev =
wsi->pending_read_list_prev;
wsi->pending_read_list_prev = NULL;
wsi->pending_read_list_next = NULL;
}
int
lws_gate_accepts(struct lws_context *context, int on)
{
struct lws_vhost *v = context->vhost_list;
lwsl_info("gating accepts %d\n", on);
context->ssl_gate_accepts = !on;
#if defined(LWS_WITH_STATS)
context->updated = 1;
#endif
while (v) {
if (v->use_ssl && v->lserv_wsi) /* gate ability to accept incoming connections */
if (lws_change_pollfd(v->lserv_wsi, (LWS_POLLIN) * !on,
(LWS_POLLIN) * on))
lwsl_info("Unable to set accept POLLIN %d\n", on);
v = v->vhost_next;
}
return 0;
}