129 lines
2.7 KiB
C
129 lines
2.7 KiB
C
|
/**
|
||
|
|
* http_server - HTTP server
|
||
|
|
* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* Alternatively, this software may be distributed under the terms of BSD
|
||
|
|
* license.
|
||
|
|
*
|
||
|
|
* See README and COPYING for more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "includes.h"
|
||
|
|
#include <fcntl.h>
|
||
|
|
|
||
|
|
#include "common.h"
|
||
|
|
#include "eloop.h"
|
||
|
|
#include "http_server.h"
|
||
|
|
|
||
|
|
|
||
|
|
struct http_server {
|
||
|
|
void (*cb)(void *ctx, int fd, struct sockaddr_in *addr);
|
||
|
|
void *cb_ctx;
|
||
|
|
|
||
|
|
int fd;
|
||
|
|
int port;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
static void http_server_cb(int sd, void *eloop_ctx, void *sock_ctx)
|
||
|
|
{
|
||
|
|
struct sockaddr_in addr;
|
||
|
|
socklen_t addr_len = sizeof(addr);
|
||
|
|
struct http_server *srv = eloop_ctx;
|
||
|
|
int conn;
|
||
|
|
|
||
|
|
conn = accept(srv->fd, (struct sockaddr *) &addr, &addr_len);
|
||
|
|
if (conn < 0) {
|
||
|
|
wpa_printf(MSG_DEBUG, "HTTP: Failed to accept new connection: "
|
||
|
|
"%s", strerror(errno));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
wpa_printf(MSG_DEBUG, "HTTP: Connection from %s:%d",
|
||
|
|
inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
|
||
|
|
srv->cb(srv->cb_ctx, conn, &addr);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
struct http_server * http_server_init(struct in_addr *addr, int port,
|
||
|
|
void (*cb)(void *ctx, int fd,
|
||
|
|
struct sockaddr_in *addr),
|
||
|
|
void *cb_ctx)
|
||
|
|
{
|
||
|
|
struct sockaddr_in sin;
|
||
|
|
struct http_server *srv;
|
||
|
|
|
||
|
|
srv = os_zalloc(sizeof(*srv));
|
||
|
|
if (srv == NULL)
|
||
|
|
return NULL;
|
||
|
|
srv->cb = cb;
|
||
|
|
srv->cb_ctx = cb_ctx;
|
||
|
|
|
||
|
|
srv->fd = socket(AF_INET, SOCK_STREAM, 0);
|
||
|
|
if (srv->fd < 0)
|
||
|
|
goto fail;
|
||
|
|
if (fcntl(srv->fd, F_SETFL, O_NONBLOCK) < 0)
|
||
|
|
goto fail;
|
||
|
|
if (port < 0)
|
||
|
|
srv->port = 49152;
|
||
|
|
else
|
||
|
|
srv->port = port;
|
||
|
|
|
||
|
|
os_memset(&sin, 0, sizeof(sin));
|
||
|
|
sin.sin_family = AF_INET;
|
||
|
|
sin.sin_addr.s_addr = addr->s_addr;
|
||
|
|
|
||
|
|
for (;;) {
|
||
|
|
sin.sin_port = htons(srv->port);
|
||
|
|
if (bind(srv->fd, (struct sockaddr *) &sin, sizeof(sin)) == 0)
|
||
|
|
break;
|
||
|
|
if (errno == EADDRINUSE) {
|
||
|
|
/* search for unused port */
|
||
|
|
if (++srv->port == 65535 || port >= 0)
|
||
|
|
goto fail;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
wpa_printf(MSG_DEBUG, "HTTP: Failed to bind server port %d: "
|
||
|
|
"%s", srv->port, strerror(errno));
|
||
|
|
goto fail;
|
||
|
|
}
|
||
|
|
if (listen(srv->fd, 10 /* max backlog */) < 0)
|
||
|
|
goto fail;
|
||
|
|
if (fcntl(srv->fd, F_SETFL, O_NONBLOCK) < 0)
|
||
|
|
goto fail;
|
||
|
|
if (eloop_register_sock(srv->fd, EVENT_TYPE_READ, http_server_cb,
|
||
|
|
srv, NULL))
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
wpa_printf(MSG_DEBUG, "HTTP: Started server on %s:%d",
|
||
|
|
inet_ntoa(*addr), srv->port);
|
||
|
|
|
||
|
|
return srv;
|
||
|
|
|
||
|
|
fail:
|
||
|
|
http_server_deinit(srv);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void http_server_deinit(struct http_server *srv)
|
||
|
|
{
|
||
|
|
if (srv == NULL)
|
||
|
|
return;
|
||
|
|
if (srv->fd >= 0) {
|
||
|
|
eloop_unregister_sock(srv->fd, EVENT_TYPE_READ);
|
||
|
|
close(srv->fd);
|
||
|
|
}
|
||
|
|
|
||
|
|
os_free(srv);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
int http_server_get_port(struct http_server *srv)
|
||
|
|
{
|
||
|
|
return srv->port;
|
||
|
|
}
|