tree 5024666c8d88b654294e032f077b71ca3d3e7b89
parent e9f69c10197f5ca3f834477952654d25c3ff5ecb
author Maxim Dounin <mdounin@mdounin.ru> 1498154946 +0300
committer Maxim Dounin <mdounin@mdounin.ru> 1498154946 +0300

Upstream: introduced ngx_http_upstream_ssl_handshake_handler().

This change reworks 13a5f4765887 to only run posted requests once,
with nothing on stack.  Running posted requests with other request
functions on stack may result in use-after-free in case of errors,
similar to the one reported in #788.

To only run posted request once, a separate function was introduced
to be used as ssl handshake handler in c->ssl->handler,
ngx_http_upstream_ssl_handshake_handler().  The ngx_http_run_posted_requests()
is only called in this function, and not in ngx_http_upstream_ssl_handshake()
which may be called directly on stack.

Additionaly, ngx_http_upstream_ssl_handshake_handler() now does appropriate
debug logging of the current subrequest, similar to what is done in other
event handlers.