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|
/*
This file is part of libmicrohttpd
Copyright (C) 2016, 2019 Christian Grothoff
libmicrohttpd is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
libmicrohttpd 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with libmicrohttpd; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file test_upgrade_large.c
* @brief Testcase for libmicrohttpd upgrading a connection,
* modified to test the "large" corner case reported
* by Viet on the mailinglist in 6'2019
* @author Christian Grothoff
* @author Karlson2k (Evgeny Grin)
*/
#include "mhd_options.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>
#include <stddef.h>
#ifndef WINDOWS
#include <unistd.h>
#endif
#ifdef HAVE_STDBOOL_H
#include <stdbool.h>
#endif /* HAVE_STDBOOL_H */
#include "mhd_sockets.h"
#ifdef HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif /* HAVE_NETINET_IP_H */
#include "platform.h"
#include "microhttpd.h"
#include "test_helpers.h"
#define LARGE_STRING "HelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHello"
#define LARGE_REPLY_STRING "WorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorldWorld"
#ifdef HTTPS_SUPPORT
#include <gnutls/gnutls.h>
#include "../testcurl/https/tls_test_keys.h"
#if defined(HAVE_FORK) && defined(HAVE_WAITPID)
#include <sys/types.h>
#include <sys/wait.h>
#endif /* HAVE_FORK && HAVE_WAITPID */
#endif /* HTTPS_SUPPORT */
static int verbose = 0;
static int kicker[2] = {-1, -1} ;
enum tls_tool
{
TLS_CLI_NO_TOOL = 0,
TLS_CLI_GNUTLS,
TLS_CLI_OPENSSL,
TLS_LIB_GNUTLS
};
enum tls_tool use_tls_tool;
#if defined(HTTPS_SUPPORT) && defined(HAVE_FORK) && defined(HAVE_WAITPID)
/**
* Fork child that connects via GnuTLS-CLI to our @a port. Allows us to
* talk to our port over a socket in @a sp without having to worry
* about TLS.
*
* @param location where the socket is returned
* @return -1 on error, otherwise PID of TLS child process
*/
static pid_t
gnutlscli_connect (int *sock,
uint16_t port)
{
pid_t chld;
int sp[2];
char destination[30];
if (0 != socketpair (AF_UNIX,
SOCK_STREAM,
0,
sp))
return -1;
chld = fork ();
if (0 != chld)
{
*sock = sp[1];
MHD_socket_close_chk_ (sp[0]);
return chld;
}
MHD_socket_close_chk_ (sp[1]);
(void) close (0);
(void) close (1);
if (-1 == dup2 (sp[0], 0))
abort ();
if (-1 == dup2 (sp[0], 1))
abort ();
MHD_socket_close_chk_ (sp[0]);
if (TLS_CLI_GNUTLS == use_tls_tool)
{
snprintf (destination,
sizeof(destination),
"%u",
(unsigned int) port);
execlp ("gnutls-cli",
"gnutls-cli",
"--insecure",
"-p",
destination,
"127.0.0.1",
(char *) NULL);
}
else if (TLS_CLI_OPENSSL == use_tls_tool)
{
snprintf (destination,
sizeof(destination),
"127.0.0.1:%u",
(unsigned int) port);
execlp ("openssl",
"openssl",
"s_client",
"-connect",
destination,
"-verify",
"1",
(char *) NULL);
}
_exit (1);
}
#endif /* HTTPS_SUPPORT && HAVE_FORK && HAVE_WAITPID */
/**
* Wrapper structure for plain&TLS sockets
*/
struct wr_socket
{
/**
* Real network socket
*/
MHD_socket fd;
/**
* Type of this socket
*/
enum wr_type
{
wr_invalid = 0,
wr_plain = 1,
wr_tls = 2
} t;
#ifdef HTTPS_SUPPORT
/**
* TLS credentials
*/
gnutls_certificate_credentials_t tls_crd;
/**
* TLS session.
*/
gnutls_session_t tls_s;
/**
* TLS handshake already succeed?
*/
bool tls_connected;
#endif
};
/**
* Get underlying real socket.
* @return FD of real socket
*/
#define wr_fd(s) ((s)->fd)
/**
* Create wr_socket with plain TCP underlying socket
* @return created socket on success, NULL otherwise
*/
static struct wr_socket *
wr_create_plain_sckt(void)
{
struct wr_socket *s = malloc(sizeof(struct wr_socket));
if (NULL == s)
return NULL;
s->t = wr_plain;
s->fd = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (MHD_INVALID_SOCKET != s->fd)
return s;
free(s);
return NULL;
}
/**
* Create wr_socket with TLS TCP underlying socket
* @return created socket on success, NULL otherwise
*/
static struct wr_socket *
wr_create_tls_sckt(void)
{
#ifdef HTTPS_SUPPORT
struct wr_socket *s = malloc(sizeof(struct wr_socket));
if (NULL == s)
return NULL;
s->t = wr_tls;
s->tls_connected = 0;
s->fd = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (MHD_INVALID_SOCKET != s->fd)
{
if (GNUTLS_E_SUCCESS == gnutls_init (&(s->tls_s), GNUTLS_CLIENT))
{
if (GNUTLS_E_SUCCESS == gnutls_set_default_priority (s->tls_s))
{
if (GNUTLS_E_SUCCESS == gnutls_certificate_allocate_credentials (&(s->tls_crd)))
{
if (GNUTLS_E_SUCCESS == gnutls_credentials_set (s->tls_s, GNUTLS_CRD_CERTIFICATE, s->tls_crd))
{
#if GNUTLS_VERSION_NUMBER+0 >= 0x030109
gnutls_transport_set_int (s->tls_s, (int)(s->fd));
#else /* GnuTLS before 3.1.9 */
gnutls_transport_set_ptr (s->tls_s, (gnutls_transport_ptr_t)(intptr_t)(s->fd));
#endif /* GnuTLS before 3.1.9 */
return s;
}
gnutls_certificate_free_credentials (s->tls_crd);
}
}
gnutls_deinit (s->tls_s);
}
(void)MHD_socket_close_ (s->fd);
}
free(s);
#endif /* HTTPS_SUPPORT */
return NULL;
}
/**
* Create wr_socket with plain TCP underlying socket
* from already created TCP socket.
* @param plain_sk real TCP socket
* @return created socket on success, NULL otherwise
*/
static struct wr_socket *
wr_create_from_plain_sckt(MHD_socket plain_sk)
{
struct wr_socket *s = malloc(sizeof(struct wr_socket));
if (NULL == s)
return NULL;
s->t = wr_plain;
s->fd = plain_sk;
return s;
}
/**
* Connect socket to specified address.
* @param s socket to use
* @param addr address to connect
* @param length of sturcture pointed by @a addr
* @return zero on success, -1 otherwise.
*/
static int
wr_connect(struct wr_socket *s,
const struct sockaddr *addr,
int length)
{
if (0 != connect (s->fd, addr, length))
return -1;
if (wr_plain == s->t)
return 0;
#ifdef HTTPS_SUPPORT
if (wr_tls == s->t)
{
/* Do not try handshake here as
* it require processing on MHD side and
* when testing with "external" polling,
* test will call MHD processing only
* after return from wr_connect(). */
s->tls_connected = 0;
return 0;
}
#endif /* HTTPS_SUPPORT */
return -1;
}
#ifdef HTTPS_SUPPORT
/* Only to be called from wr_send() and wr_recv() ! */
static bool
wr_handshake(struct wr_socket *s)
{
int res = gnutls_handshake (s->tls_s);
if (GNUTLS_E_SUCCESS == res)
s->tls_connected = true;
else if (GNUTLS_E_AGAIN == res)
MHD_socket_set_error_ (MHD_SCKT_EAGAIN_);
else
MHD_socket_set_error_ (MHD_SCKT_ECONNABORTED_); /* hard error */
return s->tls_connected;
}
#endif /* HTTPS_SUPPORT */
/**
* Send data to remote by socket.
* @param s the socket to use
* @param buf the buffer with data to send
* @param len the length of data in @a buf
* @return number of bytes were sent if succeed,
* -1 if failed. Use #MHD_socket_get_error_()
* to get socket error.
*/
static ssize_t
wr_send (struct wr_socket *s,
const void *buf,
size_t len)
{
if (wr_plain == s->t)
return MHD_send_(s->fd, buf, len);
#ifdef HTTPS_SUPPORT
if (wr_tls == s->t)
{
ssize_t ret;
if (!s->tls_connected && !wr_handshake (s))
return -1;
ret = gnutls_record_send (s->tls_s, buf, len);
if (ret > 0)
return ret;
if (GNUTLS_E_AGAIN == ret)
MHD_socket_set_error_ (MHD_SCKT_EAGAIN_);
else
MHD_socket_set_error_ (MHD_SCKT_ECONNABORTED_); /* hard error */
}
#endif /* HTTPS_SUPPORT */
return -1;
}
/**
* Receive data from remote by socket.
* @param s the socket to use
* @param buf the buffer to store received data
* @param len the length of @a buf
* @return number of bytes were received if succeed,
* -1 if failed. Use #MHD_socket_get_error_()
* to get socket error.
*/
static ssize_t
wr_recv (struct wr_socket *s,
void *buf,
size_t len)
{
if (wr_plain == s->t)
return MHD_recv_ (s->fd, buf, len);
#ifdef HTTPS_SUPPORT
if (wr_tls == s->t)
{
ssize_t ret;
if (!s->tls_connected && !wr_handshake (s))
return -1;
ret = gnutls_record_recv (s->tls_s, buf, len);
if (ret > 0)
return ret;
if (GNUTLS_E_AGAIN == ret)
MHD_socket_set_error_ (MHD_SCKT_EAGAIN_);
else
MHD_socket_set_error_ (MHD_SCKT_ECONNABORTED_); /* hard error */
}
#endif /* HTTPS_SUPPORT */
return -1;
}
/**
* Close socket and release allocated resourced
* @param s the socket to close
* @return zero on succeed, -1 otherwise
*/
static int
wr_close (struct wr_socket *s)
{
int ret = (MHD_socket_close_(s->fd)) ? 0 : -1;
#ifdef HTTPS_SUPPORT
if (wr_tls == s->t)
{
gnutls_deinit (s->tls_s);
gnutls_certificate_free_credentials (s->tls_crd);
}
#endif /* HTTPS_SUPPORT */
free (s);
return ret;
}
/**
* Thread we use to run the interaction with the upgraded socket.
*/
static pthread_t pt;
/**
* Will be set to the upgraded socket.
*/
static struct wr_socket *usock;
/**
* Thread we use to run the interaction with the upgraded socket.
*/
static pthread_t pt_client;
/**
* Flag set to 1 once the test is finished.
*/
static volatile bool done;
/**
* Callback used by MHD to notify the application about completed
* requests. Frees memory.
*
* @param cls client-defined closure
* @param connection connection handle
* @param con_cls value as set by the last call to
* the #MHD_AccessHandlerCallback
* @param toe reason for request termination
*/
static void
notify_completed_cb (void *cls,
struct MHD_Connection *connection,
void **con_cls,
enum MHD_RequestTerminationCode toe)
{
pthread_t* ppth = *con_cls;
(void) cls;
(void) connection; /* Unused. Silent compiler warning. */
if ( (toe != MHD_REQUEST_TERMINATED_COMPLETED_OK) &&
(toe != MHD_REQUEST_TERMINATED_CLIENT_ABORT) &&
(toe != MHD_REQUEST_TERMINATED_DAEMON_SHUTDOWN) )
abort ();
if (! pthread_equal (**((pthread_t**)con_cls),
pthread_self ()))
abort ();
if (NULL != ppth)
free (*con_cls);
*con_cls = NULL;
}
/**
* Logging callback.
*
* @param cls logging closure (NULL)
* @param uri access URI
* @param connection connection handle
* @return #TEST_PTR
*/
static void *
log_cb (void *cls,
const char *uri,
struct MHD_Connection *connection)
{
pthread_t *ppth;
(void) cls;
(void) connection; /* Unused. Silent compiler warning. */
if (0 != strcmp (uri,
"/"))
abort ();
ppth = malloc (sizeof (pthread_t));
if (NULL == ppth)
abort();
*ppth = pthread_self ();
return (void *) ppth;
}
/**
* Function to check that MHD properly notifies about starting
* and stopping.
*
* @param cls client-defined closure
* @param connection connection handle
* @param socket_context socket-specific pointer where the
* client can associate some state specific
* to the TCP connection; note that this is
* different from the "con_cls" which is per
* HTTP request. The client can initialize
* during #MHD_CONNECTION_NOTIFY_STARTED and
* cleanup during #MHD_CONNECTION_NOTIFY_CLOSED
* and access in the meantime using
* #MHD_CONNECTION_INFO_SOCKET_CONTEXT.
* @param toe reason for connection notification
* @see #MHD_OPTION_NOTIFY_CONNECTION
* @ingroup request
*/
static void
notify_connection_cb (void *cls,
struct MHD_Connection *connection,
void **socket_context,
enum MHD_ConnectionNotificationCode toe)
{
static int started;
(void) cls;
(void) connection; /* Unused. Silent compiler warning. */
switch (toe)
{
case MHD_CONNECTION_NOTIFY_STARTED:
if (MHD_NO != started)
abort ();
started = MHD_YES;
*socket_context = &started;
break;
case MHD_CONNECTION_NOTIFY_CLOSED:
if (MHD_YES != started)
abort ();
if (&started != *socket_context)
abort ();
*socket_context = NULL;
started = MHD_NO;
break;
}
}
/**
* Change socket to blocking.
*
* @param fd the socket to manipulate
* @return non-zero if succeeded, zero otherwise
*/
static void
make_blocking (MHD_socket fd)
{
#if defined(MHD_POSIX_SOCKETS)
int flags;
flags = fcntl (fd, F_GETFL);
if (-1 == flags)
return;
if ((flags & ~O_NONBLOCK) != flags)
if (-1 == fcntl (fd, F_SETFL, flags & ~O_NONBLOCK))
abort ();
#elif defined(MHD_WINSOCK_SOCKETS)
unsigned long flags = 1;
ioctlsocket (fd, FIONBIO, &flags);
#endif /* MHD_WINSOCK_SOCKETS */
}
static void
kick_select ()
{
if (-1 != kicker[1])
{
write (kicker[1], "K", 1);
}
}
static void
send_all (struct wr_socket *sock,
const char *text)
{
size_t len = strlen (text);
ssize_t ret;
size_t off;
make_blocking (wr_fd (sock));
for (off = 0; off < len; off += ret)
{
ret = wr_send (sock,
&text[off],
len - off);
kick_select ();
if (0 > ret)
{
if (MHD_SCKT_ERR_IS_EAGAIN_ (MHD_socket_get_error_ ()))
{
ret = 0;
continue;
}
abort ();
}
}
}
/**
* Read character-by-character until we
* get '\r\n\r\n'.
*/
static void
recv_hdr (struct wr_socket *sock)
{
unsigned int i;
char next;
char c;
ssize_t ret;
make_blocking (wr_fd (sock));
next = '\r';
i = 0;
while (i < 4)
{
ret = wr_recv (sock,
&c,
1);
kick_select ();
if (0 > ret)
{
if (MHD_SCKT_ERR_IS_EAGAIN_ (MHD_socket_get_error_ ()))
continue;
abort ();
}
if (0 == ret)
continue;
if (c == next)
{
i++;
if (next == '\r')
next = '\n';
else
next = '\r';
continue;
}
if (c == '\r')
{
i = 1;
next = '\n';
continue;
}
i = 0;
next = '\r';
}
}
static void
recv_all (struct wr_socket *sock,
const char *text)
{
size_t len = strlen (text);
char buf[len];
ssize_t ret;
size_t off;
make_blocking (wr_fd (sock));
for (off = 0; off < len; off += ret)
{
ret = wr_recv (sock,
&buf[off],
len - off);
if (0 > ret)
{
if (MHD_SCKT_ERR_IS_EAGAIN_ (MHD_socket_get_error_ ()))
{
ret = 0;
continue;
}
abort ();
}
}
if (0 != strncmp (text, buf, len))
abort();
}
/**
* Main function for the thread that runs the interaction with
* the upgraded socket.
*
* @param cls the handle for the upgrade
*/
static void *
run_usock (void *cls)
{
struct MHD_UpgradeResponseHandle *urh = cls;
MHD_upgrade_action (urh,
MHD_UPGRADE_ACTION_CORK_OFF);
send_all (usock,
LARGE_STRING);
recv_all (usock,
LARGE_REPLY_STRING);
send_all (usock,
"Finished");
MHD_upgrade_action (urh,
MHD_UPGRADE_ACTION_CLOSE);
free (usock);
usock = NULL;
return NULL;
}
/**
* Main function for the thread that runs the client-side of the
* interaction with the upgraded socket.
*
* @param cls the client socket
*/
static void *
run_usock_client (void *cls)
{
struct wr_socket *sock = cls;
send_all (sock,
"GET / HTTP/1.1\r\nConnection: Upgrade\r\n\r\n");
recv_hdr (sock);
recv_all (sock,
LARGE_STRING);
send_all (sock,
LARGE_REPLY_STRING);
recv_all (sock,
"Finished");
wr_close (sock);
done = true;
return NULL;
}
/**
* Function called after a protocol "upgrade" response was sent
* successfully and the socket should now be controlled by some
* protocol other than HTTP.
*
* Any data already received on the socket will be made available in
* @e extra_in. This can happen if the application sent extra data
* before MHD send the upgrade response. The application should
* treat data from @a extra_in as if it had read it from the socket.
*
* Note that the application must not close() @a sock directly,
* but instead use #MHD_upgrade_action() for special operations
* on @a sock.
*
* Except when in 'thread-per-connection' mode, implementations
* of this function should never block (as it will still be called
* from within the main event loop).
*
* @param cls closure, whatever was given to #MHD_create_response_for_upgrade().
* @param connection original HTTP connection handle,
* giving the function a last chance
* to inspect the original HTTP request
* @param con_cls last value left in `con_cls` of the `MHD_AccessHandlerCallback`
* @param extra_in if we happened to have read bytes after the
* HTTP header already (because the client sent
* more than the HTTP header of the request before
* we sent the upgrade response),
* these are the extra bytes already read from @a sock
* by MHD. The application should treat these as if
* it had read them from @a sock.
* @param extra_in_size number of bytes in @a extra_in
* @param sock socket to use for bi-directional communication
* with the client. For HTTPS, this may not be a socket
* that is directly connected to the client and thus certain
* operations (TCP-specific setsockopt(), getsockopt(), etc.)
* may not work as expected (as the socket could be from a
* socketpair() or a TCP-loopback). The application is expected
* to perform read()/recv() and write()/send() calls on the socket.
* The application may also call shutdown(), but must not call
* close() directly.
* @param urh argument for #MHD_upgrade_action()s on this @a connection.
* Applications must eventually use this callback to (indirectly)
* perform the close() action on the @a sock.
*/
static void
upgrade_cb (void *cls,
struct MHD_Connection *connection,
void *con_cls,
const char *extra_in,
size_t extra_in_size,
MHD_socket sock,
struct MHD_UpgradeResponseHandle *urh)
{
(void) cls;
(void) connection;
(void) con_cls;
(void) extra_in; /* Unused. Silent compiler warning. */
usock = wr_create_from_plain_sckt (sock);
if (0 != extra_in_size)
abort ();
if (0 != pthread_create (&pt,
NULL,
&run_usock,
urh))
abort ();
}
/**
* A client has requested the given url using the given method
* (#MHD_HTTP_METHOD_GET, #MHD_HTTP_METHOD_PUT,
* #MHD_HTTP_METHOD_DELETE, #MHD_HTTP_METHOD_POST, etc). The callback
* must call MHD callbacks to provide content to give back to the
* client and return an HTTP status code (i.e. #MHD_HTTP_OK,
* #MHD_HTTP_NOT_FOUND, etc.).
*
* @param cls argument given together with the function
* pointer when the handler was registered with MHD
* @param url the requested url
* @param method the HTTP method used (#MHD_HTTP_METHOD_GET,
* #MHD_HTTP_METHOD_PUT, etc.)
* @param version the HTTP version string (i.e.
* #MHD_HTTP_VERSION_1_1)
* @param upload_data the data being uploaded (excluding HEADERS,
* for a POST that fits into memory and that is encoded
* with a supported encoding, the POST data will NOT be
* given in upload_data and is instead available as
* part of #MHD_get_connection_values; very large POST
* data *will* be made available incrementally in
* @a upload_data)
* @param upload_data_size set initially to the size of the
* @a upload_data provided; the method must update this
* value to the number of bytes NOT processed;
* @param con_cls pointer that the callback can set to some
* address and that will be preserved by MHD for future
* calls for this request; since the access handler may
* be called many times (i.e., for a PUT/POST operation
* with plenty of upload data) this allows the application
* to easily associate some request-specific state.
* If necessary, this state can be cleaned up in the
* global #MHD_RequestCompletedCallback (which
* can be set with the #MHD_OPTION_NOTIFY_COMPLETED).
* Initially, `*con_cls` will be NULL.
* @return #MHD_YES if the connection was handled successfully,
* #MHD_NO if the socket must be closed due to a serios
* error while handling the request
*/
static int
ahc_upgrade (void *cls,
struct MHD_Connection *connection,
const char *url,
const char *method,
const char *version,
const char *upload_data,
size_t *upload_data_size,
void **con_cls)
{
struct MHD_Response *resp;
int ret;
(void) cls;
(void) url;
(void) method; /* Unused. Silent compiler warning. */
(void) version;
(void) upload_data;
(void) upload_data_size; /* Unused. Silent compiler warning. */
if (NULL == *con_cls)
abort ();
if (! pthread_equal (**((pthread_t**)con_cls), pthread_self ()))
abort ();
resp = MHD_create_response_for_upgrade (&upgrade_cb,
NULL);
MHD_add_response_header (resp,
MHD_HTTP_HEADER_UPGRADE,
"Hello World Protocol");
ret = MHD_queue_response (connection,
MHD_HTTP_SWITCHING_PROTOCOLS,
resp);
MHD_destroy_response (resp);
return ret;
}
/**
* Run the MHD external event loop using select.
*
* @param daemon daemon to run it for
*/
static void
run_mhd_select_loop (struct MHD_Daemon *daemon)
{
fd_set rs;
fd_set ws;
fd_set es;
MHD_socket max_fd;
MHD_UNSIGNED_LONG_LONG to;
struct timeval tv;
char drain[128];
if (0 != pipe (kicker))
abort ();
while (! done)
{
FD_ZERO (&rs);
FD_ZERO (&ws);
FD_ZERO (&es);
max_fd = -1;
to = 1000;
FD_SET (kicker[0], &rs);
if (MHD_YES !=
MHD_get_fdset (daemon,
&rs,
&ws,
&es,
&max_fd))
abort ();
(void) MHD_get_timeout (daemon,
&to);
if (1000 < to)
to = 1000;
tv.tv_sec = to / 1000;
tv.tv_usec = 1000 * (to % 1000);
if (0 > MHD_SYS_select_ (max_fd + 1,
&rs,
&ws,
&es,
&tv))
abort ();
if (FD_ISSET (kicker[0], &rs))
(void) read (kicker[0], drain, sizeof (drain));
MHD_run_from_select (daemon,
&rs,
&ws,
&es);
}
close (kicker[0]);
close (kicker[1]);
kicker[0] = -1;
kicker[1] = -1;
}
#ifdef HAVE_POLL
/**
* Run the MHD external event loop using select.
*
* @param daemon daemon to run it for
*/
static void
run_mhd_poll_loop (struct MHD_Daemon *daemon)
{
(void)daemon; /* Unused. Silent compiler warning. */
abort (); /* currently not implementable with existing MHD API */
}
#endif /* HAVE_POLL */
#ifdef EPOLL_SUPPORT
/**
* Run the MHD external event loop using select.
*
* @param daemon daemon to run it for
*/
static void
run_mhd_epoll_loop (struct MHD_Daemon *daemon)
{
const union MHD_DaemonInfo *di;
MHD_socket ep;
fd_set rs;
MHD_UNSIGNED_LONG_LONG to;
struct timeval tv;
int ret;
char drain[128];
di = MHD_get_daemon_info (daemon,
MHD_DAEMON_INFO_EPOLL_FD);
ep = di->listen_fd;
if (0 != pipe (kicker))
abort ();
while (! done)
{
FD_ZERO (&rs);
to = 1000;
FD_SET (kicker[0], &rs);
FD_SET (ep, &rs);
(void) MHD_get_timeout (daemon,
&to);
if (1000 < to)
to = 1000;
tv.tv_sec = to / 1000;
tv.tv_usec = 1000 * (to % 1000);
ret = select (ep + 1,
&rs,
NULL,
NULL,
&tv);
if ( (-1 == ret) &&
(EAGAIN != errno) &&
(EINTR != errno) )
abort ();
if (FD_ISSET (kicker[0], &rs))
(void) read (kicker[0], drain, sizeof (drain));
MHD_run (daemon);
}
close (kicker[0]);
close (kicker[1]);
kicker[0] = -1;
kicker[1] = -1;
}
#endif /* EPOLL_SUPPORT */
/**
* Run the MHD external event loop using select.
*
* @param daemon daemon to run it for
*/
static void
run_mhd_loop (struct MHD_Daemon *daemon,
int flags)
{
if (0 == (flags & (MHD_USE_POLL | MHD_USE_EPOLL)))
run_mhd_select_loop (daemon);
#ifdef HAVE_POLL
else if (0 != (flags & MHD_USE_POLL))
run_mhd_poll_loop (daemon);
#endif /* HAVE_POLL */
#if EPOLL_SUPPORT
else if (0 != (flags & MHD_USE_EPOLL))
run_mhd_epoll_loop (daemon);
#endif
else
abort ();
}
static bool test_tls;
/**
* Test upgrading a connection.
*
* @param flags which event loop style should be tested
* @param pool size of the thread pool, 0 to disable
*/
static int
test_upgrade (int flags,
unsigned int pool)
{
struct MHD_Daemon *d = NULL;
struct wr_socket *sock;
struct sockaddr_in sa;
const union MHD_DaemonInfo *real_flags;
const union MHD_DaemonInfo *dinfo;
#if defined(HTTPS_SUPPORT) && defined(HAVE_FORK) && defined(HAVE_WAITPID)
pid_t pid = -1;
#endif /* HTTPS_SUPPORT && HAVE_FORK && HAVE_WAITPID */
done = false;
if (! test_tls)
d = MHD_start_daemon (flags | MHD_USE_ERROR_LOG | MHD_ALLOW_UPGRADE,
MHD_is_feature_supported(MHD_FEATURE_AUTODETECT_BIND_PORT) ?
0 : 1090,
NULL, NULL,
&ahc_upgrade, NULL,
MHD_OPTION_CONNECTION_MEMORY_LIMIT, 512,
MHD_OPTION_URI_LOG_CALLBACK, &log_cb, NULL,
MHD_OPTION_NOTIFY_COMPLETED, ¬ify_completed_cb, NULL,
MHD_OPTION_NOTIFY_CONNECTION, ¬ify_connection_cb, NULL,
MHD_OPTION_THREAD_POOL_SIZE, pool,
MHD_OPTION_END);
#ifdef HTTPS_SUPPORT
else
d = MHD_start_daemon (flags | MHD_USE_ERROR_LOG | MHD_ALLOW_UPGRADE | MHD_USE_TLS,
MHD_is_feature_supported(MHD_FEATURE_AUTODETECT_BIND_PORT) ?
0 : 1090,
NULL, NULL,
&ahc_upgrade, NULL,
MHD_OPTION_CONNECTION_MEMORY_LIMIT, 512,
MHD_OPTION_URI_LOG_CALLBACK, &log_cb, NULL,
MHD_OPTION_NOTIFY_COMPLETED, ¬ify_completed_cb, NULL,
MHD_OPTION_NOTIFY_CONNECTION, ¬ify_connection_cb, NULL,
MHD_OPTION_HTTPS_MEM_KEY, srv_signed_key_pem,
MHD_OPTION_HTTPS_MEM_CERT, srv_signed_cert_pem,
MHD_OPTION_THREAD_POOL_SIZE, pool,
MHD_OPTION_END);
#endif /* HTTPS_SUPPORT */
if (NULL == d)
return 2;
real_flags = MHD_get_daemon_info (d,
MHD_DAEMON_INFO_FLAGS);
if (NULL == real_flags)
abort ();
dinfo = MHD_get_daemon_info (d,
MHD_DAEMON_INFO_BIND_PORT);
if ( (NULL == dinfo) ||
(0 == dinfo->port) )
abort ();
if (!test_tls || TLS_LIB_GNUTLS == use_tls_tool)
{
sock = test_tls ? wr_create_tls_sckt () : wr_create_plain_sckt ();
if (NULL == sock)
abort ();
sa.sin_family = AF_INET;
sa.sin_port = htons (dinfo->port);
sa.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
if (0 != wr_connect (sock,
(struct sockaddr *) &sa,
sizeof (sa)))
abort ();
}
else
{
#if defined(HTTPS_SUPPORT) && defined(HAVE_FORK) && defined(HAVE_WAITPID)
MHD_socket tls_fork_sock;
uint16_t port;
/* make address sanitizer happy */
memcpy (&port,
dinfo /* ->port */,
sizeof (port));
if (-1 == (pid = gnutlscli_connect (&tls_fork_sock,
port)))
{
MHD_stop_daemon (d);
return 4;
}
sock = wr_create_from_plain_sckt (tls_fork_sock);
if (NULL == sock)
abort ();
#else /* !HTTPS_SUPPORT || !HAVE_FORK || !HAVE_WAITPID */
abort ();
#endif /* !HTTPS_SUPPORT || !HAVE_FORK || !HAVE_WAITPID */
}
if (0 != pthread_create (&pt_client,
NULL,
&run_usock_client,
sock))
abort ();
if (0 == (flags & MHD_USE_INTERNAL_POLLING_THREAD) )
{
enum MHD_FLAG flags;
/* make address sanitizer happy */
memcpy (&flags,
real_flags /* ->flags */,
sizeof (flags));
run_mhd_loop (d, flags);
}
pthread_join (pt_client,
NULL);
pthread_join (pt,
NULL);
#if defined(HTTPS_SUPPORT) && defined(HAVE_FORK) && defined(HAVE_WAITPID)
if (test_tls && TLS_LIB_GNUTLS != use_tls_tool)
waitpid (pid, NULL, 0);
#endif /* HTTPS_SUPPORT && HAVE_FORK && HAVE_WAITPID */
MHD_stop_daemon (d);
return 0;
}
int
main (int argc,
char *const *argv)
{
int error_count = 0;
int res;
use_tls_tool = TLS_CLI_NO_TOOL;
test_tls = has_in_name(argv[0], "_tls");
verbose = 1;
if (has_param(argc, argv, "-q") ||
has_param(argc, argv, "--quiet"))
verbose = 0;
if (test_tls)
{
#ifdef HTTPS_SUPPORT
if (has_param(argc, argv, "--use-gnutls-cli"))
use_tls_tool = TLS_CLI_GNUTLS;
else if (has_param(argc, argv, "--use-openssl"))
use_tls_tool = TLS_CLI_OPENSSL;
else if (has_param(argc, argv, "--use-gnutls-lib"))
use_tls_tool = TLS_LIB_GNUTLS;
#if defined(HAVE_FORK) && defined(HAVE_WAITPID)
else if (0 == system ("gnutls-cli --version 1> /dev/null 2> /dev/null"))
use_tls_tool = TLS_CLI_GNUTLS;
else if (0 == system ("openssl version 1> /dev/null 2> /dev/null"))
use_tls_tool = TLS_CLI_OPENSSL;
#endif /* HAVE_FORK && HAVE_WAITPID */
else
use_tls_tool = TLS_LIB_GNUTLS; /* Should be available as MHD use it. */
if (verbose)
{
switch (use_tls_tool)
{
case TLS_CLI_GNUTLS:
printf ("GnuTLS-CLI will be used for testing.\n");
break;
case TLS_CLI_OPENSSL:
printf ("Command line version of OpenSSL will be used for testing.\n");
break;
case TLS_LIB_GNUTLS:
printf ("GnuTLS library will be used for testing.\n");
break;
default:
abort ();
}
}
if ( (TLS_LIB_GNUTLS == use_tls_tool) &&
(GNUTLS_E_SUCCESS != gnutls_global_init()) )
abort ();
#else /* ! HTTPS_SUPPORT */
fprintf (stderr, "HTTPS support was disabled by configure.\n");
return 77;
#endif /* ! HTTPS_SUPPORT */
}
/* run tests */
if (verbose)
printf ("Starting HTTP \"Upgrade\" tests with %s connections.\n",
test_tls ? "TLS" : "plain");
/* try external select */
res = test_upgrade (0,
0);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with external select, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with external select.\n");
/* Try external auto */
res = test_upgrade (MHD_USE_AUTO,
0);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with external 'auto', return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with external 'auto'.\n");
#ifdef EPOLL_SUPPORT
res = test_upgrade (MHD_USE_EPOLL,
0);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with external select with EPOLL, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with external select with EPOLL.\n");
#endif
/* Test thread-per-connection */
res = test_upgrade (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_THREAD_PER_CONNECTION,
0);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with thread per connection, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with thread per connection.\n");
res = test_upgrade (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_THREAD_PER_CONNECTION,
0);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with thread per connection and 'auto', return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with thread per connection and 'auto'.\n");
#ifdef HAVE_POLL
res = test_upgrade (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_THREAD_PER_CONNECTION | MHD_USE_POLL,
0);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with thread per connection and poll, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with thread per connection and poll.\n");
#endif /* HAVE_POLL */
/* Test different event loops, with and without thread pool */
res = test_upgrade (MHD_USE_INTERNAL_POLLING_THREAD,
0);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with internal select, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with internal select.\n");
res = test_upgrade (MHD_USE_INTERNAL_POLLING_THREAD,
2);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with internal select with thread pool, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with internal select with thread pool.\n");
res = test_upgrade (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD,
0);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with internal 'auto' return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with internal 'auto'.\n");
res = test_upgrade (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD,
2);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with internal 'auto' with thread pool, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with internal 'auto' with thread pool.\n");
#ifdef HAVE_POLL
res = test_upgrade (MHD_USE_POLL_INTERNAL_THREAD,
0);
error_count += res;
if (res)
fprintf (stderr,
"FAILED: Upgrade with internal poll, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with internal poll.\n");
res = test_upgrade (MHD_USE_POLL_INTERNAL_THREAD,
2);
if (res)
fprintf (stderr,
"FAILED: Upgrade with internal poll with thread pool, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with internal poll with thread pool.\n");
#endif
#ifdef EPOLL_SUPPORT
res = test_upgrade (MHD_USE_EPOLL_INTERNAL_THREAD,
0);
if (res)
fprintf (stderr,
"FAILED: Upgrade with internal epoll, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with internal epoll.\n");
res = test_upgrade (MHD_USE_EPOLL_INTERNAL_THREAD,
2);
if (res)
fprintf (stderr,
"FAILED: Upgrade with internal epoll, return code %d.\n",
res);
else if (verbose)
printf ("PASSED: Upgrade with internal epoll.\n");
#endif
/* report result */
if (0 != error_count)
fprintf (stderr,
"Error (code: %u)\n",
error_count);
#ifdef HTTPS_SUPPORT
if (test_tls && (TLS_LIB_GNUTLS == use_tls_tool))
gnutls_global_deinit();
#endif /* HTTPS_SUPPORT */
return error_count != 0; /* 0 == pass */
}
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