320 lines
9.0 KiB
C
320 lines
9.0 KiB
C
/****************************************************************************
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* examples/thttpd/thttpd_main.c
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*
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* Copyright (C) 2009-2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name Gregory Nutt nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/ioctl.h>
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#include <sys/mount.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <debug.h>
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#include <net/if.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <netinet/ether.h>
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#include <nuttx/net/arp.h>
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#include "netutils/netlib.h"
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#include "netutils/thttpd.h"
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#include <nuttx/drivers/ramdisk.h>
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#ifdef CONFIG_THTTPD_BINFS
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# include <nuttx/fs/unionfs.h>
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#endif
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#ifdef CONFIG_NET_SLIP
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# include <nuttx/net/net.h>
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Check configuration. This is not all of the configuration settings that
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* are required -- only the more obvious.
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*/
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#ifdef CONFIG_BINFMT_DISABLE
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# error "You must not disable loadable modules via CONFIG_BINFMT_DISABLE in your configuration file"
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#endif
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#ifdef CONFIG_THTTPD_NXFLAT
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# ifndef CONFIG_NXFLAT
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# error "You must select CONFIG_NXFLAT in your configuration file"
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# endif
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# ifndef CONFIG_FS_ROMFS
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# error "You must select CONFIG_FS_ROMFS in your configuration file"
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# endif
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# ifdef CONFIG_DISABLE_MOUNTPOINT
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# error "You must not disable mountpoints via CONFIG_DISABLE_MOUNTPOINT in your configuration file"
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# endif
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#endif
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#ifdef CONFIG_THTTPD_BINFS
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# ifndef CONFIG_BUILTIN
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# error "You must select CONFIG_BUILTIN=y in your configuration file"
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# endif
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# ifndef CONFIG_FS_BINFS
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# error "You must select CONFIG_FS_BINFS=y in your configuration file"
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# endif
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# ifndef CONFIG_FS_UNIONFS
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# error "CONFIG_FS_UNIONFS=y is required in this configuration"
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# endif
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#endif
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/* Ethernet specific configuration */
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#ifdef CONFIG_NET_ETHERNET
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/* Use the standard Ethernet device name */
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# define NET_DEVNAME "eth0"
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#else
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/* No Ethernet -> No MAC address operations */
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# undef CONFIG_EXAMPLES_THTTPD_NOMAC
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#endif
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/* SLIP-specific configuration */
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#ifdef CONFIG_NET_SLIP
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/* TTY device to use */
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# ifndef CONFIG_NET_SLIPTTY
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# define CONFIG_NET_SLIPTTY "/dev/ttyS1"
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# endif
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# define SLIP_DEVNO 0
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# ifndef NET_DEVNAME
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# define NET_DEVNAME "sl0"
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# endif
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#endif
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/* Describe the ROMFS file system */
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#define SECTORSIZE 64
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#define NSECTORS(b) (((b)+SECTORSIZE-1)/SECTORSIZE)
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#define ROMFSDEV "/dev/ram0"
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#ifdef CONFIG_THTTPD_BINFS
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# define ROMFS_MOUNTPT "/mnt/tmp1"
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# define ROMFS_PREFIX NULL
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# define BINFS_MOUNTPT "/mnt/tmp2"
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# define BINFS_PREFIX "cgi-bin"
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# define UNIONFS_MOUNTPT CONFIG_THTTPD_PATH
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#else
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# define ROMFS_MOUNTPT CONFIG_THTTPD_PATH
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef CONFIG_THTTPD_NXFLAT
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/* These values must be provided by the user before the THTTPD task daemon
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* is started:
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*
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* g_thttpdsymtab: A symbol table describing all of the symbols exported
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* from the base system. These symbols are used to bind address references
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* in CGI programs to NuttX.
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* g_nsymbols: The number of symbols in g_thttpdsymtab[].
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*/
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FAR const struct symtab_s *g_thttpdsymtab;
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int g_thttpdnsymbols;
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#endif
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/****************************************************************************
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* Symbols from Auto-Generated Code
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****************************************************************************/
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extern const unsigned char romfs_img[];
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extern const unsigned int romfs_img_len;
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#ifdef CONFIG_THTTPD_NXFLAT
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extern const struct symtab_s g_thttpd_exports[];
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extern const int g_thttpd_nexports;
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* thttp_main
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****************************************************************************/
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int main(int argc, FAR char *argv[])
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{
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struct in_addr addr;
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#ifdef CONFIG_EXAMPLES_THTTPD_NOMAC
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uint8_t mac[IFHWADDRLEN];
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#endif
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char *thttpd_argv = "thttpd";
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int ret;
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/* Configure SLIP */
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#ifdef CONFIG_NET_SLIP
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ret = slip_initialize(SLIP_DEVNO, CONFIG_NET_SLIPTTY);
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if (ret < 0)
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{
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printf("ERROR: SLIP initialization failed: %d\n", ret);
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exit(1);
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}
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#endif
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/* Many embedded network interfaces must have a software assigned MAC */
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#ifdef CONFIG_EXAMPLES_THTTPD_NOMAC
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printf("Assigning MAC\n");
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mac[0] = 0x00;
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mac[1] = 0xe0;
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mac[2] = 0xde;
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mac[3] = 0xad;
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mac[4] = 0xbe;
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mac[5] = 0xef;
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netlib_setmacaddr(NET_DEVNAME, mac);
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#endif
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/* Set up our host address */
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printf("Setup network addresses\n");
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addr.s_addr = HTONL(CONFIG_THTTPD_IPADDR);
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netlib_set_ipv4addr(NET_DEVNAME, &addr);
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/* Set up the default router address */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_THTTPD_DRIPADDR);
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netlib_set_dripv4addr(NET_DEVNAME, &addr);
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/* Setup the subnet mask */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_THTTPD_NETMASK);
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netlib_set_ipv4netmask(NET_DEVNAME, &addr);
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/* New versions of netlib_set_ipvXaddr will not bring the network up,
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* So ensure the network is really up at this point.
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*/
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netlib_ifup("eth0");
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/* Create a ROM disk for the ROMFS filesystem */
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printf("Registering romdisk\n");
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ret = romdisk_register(0, (uint8_t *)romfs_img, NSECTORS(romfs_img_len),
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SECTORSIZE);
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if (ret < 0)
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{
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printf("ERROR: romdisk_register failed: %d\n", ret);
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exit(1);
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}
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/* Mount the ROMFS file system */
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printf("Mounting ROMFS filesystem at target=%s with source=%s\n",
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ROMFS_MOUNTPT, ROMFSDEV);
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ret = mount(ROMFSDEV, ROMFS_MOUNTPT, "romfs", MS_RDONLY, NULL);
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if (ret < 0)
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{
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printf("ERROR: mount(%s,%s,romfs) failed: %d\n",
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ROMFSDEV, ROMFS_MOUNTPT, errno);
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}
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#ifdef CONFIG_THTTPD_BINFS
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/* Mount the BINFS file system */
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printf("Mounting BINFS filesystem at %s\n", BINFS_MOUNTPT);
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ret = mount(NULL, BINFS_MOUNTPT, "binfs", MS_RDONLY, NULL);
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if (ret < 0)
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{
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printf("ERROR: mount(NULL,%s,binfs) failed: %d\n",
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BINFS_MOUNTPT, errno);
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}
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/* Now create and mount the union file system */
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printf("Creating UNIONFS filesystem at %s\n", UNIONFS_MOUNTPT);
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ret = unionfs_mount(ROMFS_MOUNTPT, ROMFS_PREFIX, BINFS_MOUNTPT,
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BINFS_PREFIX, UNIONFS_MOUNTPT);
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if (ret < 0)
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{
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printf("ERROR: Failed to create the union file system at %s: %d\n",
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UNIONFS_MOUNTPT, ret);
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}
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#endif
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/* Start THTTPD. At present, symbol table info is passed via
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* global variables.
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*/
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#ifdef CONFIG_THTTPD_NXFLAT
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g_thttpdsymtab = g_thttpd_exports;
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g_thttpdnsymbols = g_thttpd_nexports;
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#endif
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printf("Starting THTTPD\n");
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fflush(stdout);
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thttpd_main(1, &thttpd_argv);
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printf("THTTPD terminated\n");
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fflush(stdout);
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return 0;
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}
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