/**************************************************************************** * apps/examples/ftpd/ftpd_main.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include "netutils/netlib.h" #include "netutils/ftpd.h" #include "ftpd.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* If FTP is used and both IPv6 and IPv4 are enabled, then we need to * pick one. */ #ifdef CONFIG_NET_IPv6 # define ADDR_FAMILY AF_INET6 #else # define ADDR_FAMILY AF_INET #endif /**************************************************************************** * Private Data ****************************************************************************/ static const struct fptd_account_s g_ftpdaccounts[] = { { FTPD_ACCOUNTFLAG_SYSTEM, "root", "abc123", NULL }, { FTPD_ACCOUNTFLAG_GUEST, "ftp", NULL, NULL }, { FTPD_ACCOUNTFLAG_GUEST, "anonymous", NULL, NULL }, }; #define NACCOUNTS (sizeof(g_ftpdaccounts) / sizeof(struct fptd_account_s)) /**************************************************************************** * Public Data ****************************************************************************/ /* To minimize the probability of name collisions, all FTPD example * global data is maintained in a single instance of a structure. */ struct ftpd_globals_s g_ftpdglob; /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: fptd_netinit ****************************************************************************/ static void fptd_netinit(void) { #ifndef CONFIG_EXAMPLES_FTPD_NONETINIT struct in_addr addr; #ifdef CONFIG_EXAMPLES_FTPD_NOMAC uint8_t mac[IFHWADDRLEN]; #endif /* Many embedded network interfaces must have a software assigned MAC */ #ifdef CONFIG_EXAMPLES_FTPD_NOMAC mac[0] = 0x00; mac[1] = 0xe0; mac[2] = 0xde; mac[3] = 0xad; mac[4] = 0xbe; mac[5] = 0xef; netlib_setmacaddr("eth0", mac); #endif /* Set up our host address */ addr.s_addr = HTONL(CONFIG_EXAMPLES_FTPD_IPADDR); netlib_set_ipv4addr("eth0", &addr); /* Set up the default router address */ addr.s_addr = HTONL(CONFIG_EXAMPLES_FTPD_DRIPADDR); netlib_set_dripv4addr("eth0", &addr); /* Setup the subnet mask */ addr.s_addr = HTONL(CONFIG_EXAMPLES_FTPD_NETMASK); netlib_set_ipv4netmask("eth0", &addr); /* New versions of netlib_set_ipvXaddr will not bring the network up, * So ensure the network is really up at this point. */ netlib_ifup("eth0"); #endif /* CONFIG_EXAMPLES_FTPD_NONETINIT */ } /**************************************************************************** * Name: ftpd_accounts ****************************************************************************/ static void ftpd_accounts(FTPD_SESSION handle) { FAR const struct fptd_account_s *account; int i; printf("Adding accounts:\n"); for (i = 0; i < NACCOUNTS; i++) { account = &g_ftpdaccounts[i]; printf("%d. %s account: USER=%s PASSWORD=%s HOME=%s\n", i + 1, (account->flags & FTPD_ACCOUNTFLAG_SYSTEM) ? "Root" : "User", (!account->user) ? "(none)" : account->user, (!account->password) ? "(none)" : account->password, (!account->home) ? "(none)" : account->home); ftpd_adduser(handle, account->flags, account->user, account->password, account->home); } } static void hint(void) { fprintf(stderr, "Usage: ftpd [-46] \n\ \t-4 Use IPv4\n\ \t-6 Use IPv6\n\ "); } /**************************************************************************** * Name: ftpd_daemon ****************************************************************************/ int ftpd_daemon(int s_argc, char **s_argv) { FTPD_SESSION handle; int ret = EXIT_FAILURE; int option; int family = AF_UNSPEC; /* The FTPD daemon has been started */ g_ftpdglob.running = true; printf("FTP daemon [%d] started\n", g_ftpdglob.pid); while ((option = getopt(s_argc, &s_argv[1], "46")) != ERROR) { switch (option) { case '4': family = AF_INET; break; case '6': family = AF_INET6; break; default: break; } } if (family == AF_UNSPEC) { hint(); goto out; } if ((optind + 1) < s_argc) { fprintf(stderr, "%s: Too many arguments\n", s_argv[1]); hint(); goto out; } /* Open FTPD */ handle = ftpd_open(CONFIG_EXAMPLES_FTPD_PORT, family); if (!handle) { printf("FTP daemon [%d] failed to open FTPD\n", g_ftpdglob.pid); goto out; } /* Configure accounts */ ftpd_accounts(handle); /* Then drive the FTPD server. */ while (g_ftpdglob.stop == 0) { /* If ftpd_session returns success, it means that a new FTP session * has been started. */ ret = ftpd_session(handle, 5000); /* If any interesting happened (i.e., any thing other than a timeout), * then report the interesting event. */ if (ret != -ETIMEDOUT) { printf("FTP daemon [%d] ftpd_session returned %d\n", g_ftpdglob.pid, ret); } } /* Close the FTPD server and exit. */ printf("FTP daemon [%d] stopping\n", g_ftpdglob.pid); ftpd_close(handle); ret = EXIT_SUCCESS; out: g_ftpdglob.running = false; g_ftpdglob.stop = false; g_ftpdglob.pid = -1; return ret; } /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: ftpd_main ****************************************************************************/ int main(int argc, FAR char *argv[]) { /* Check if we have already initialized the network */ if (!g_ftpdglob.initialized) { /* Bring up the network */ printf("Initializing the network\n"); fptd_netinit(); /* Initialize daemon state */ g_ftpdglob.initialized = true; g_ftpdglob.pid = -1; g_ftpdglob.stop = false; g_ftpdglob.running = false; } /* Then start the new daemon (if it is not already running) */ if (g_ftpdglob.stop && g_ftpdglob.running) { printf("Waiting for FTP daemon [%d] to stop\n", g_ftpdglob.pid); return EXIT_FAILURE; } if (!g_ftpdglob.running) { printf("Starting the FTP daemon\n"); g_ftpdglob.pid = task_create("FTP daemon", CONFIG_EXAMPLES_FTPD_PRIO, CONFIG_EXAMPLES_FTPD_STACKSIZE, ftpd_daemon, argv); if (g_ftpdglob.pid < 0) { printf("Failed to start the FTP daemon: %d\n", errno); return EXIT_FAILURE; } } else { printf("FTP daemon [%d] is running\n", g_ftpdglob.pid); } return EXIT_SUCCESS; } /**************************************************************************** * Name: ftpd_stop ****************************************************************************/ int ftpd_stop_main(int s_argc, char **s_argv) { if (!g_ftpdglob.initialized || !g_ftpdglob.running) { printf("The FTP daemon not running\n"); return EXIT_FAILURE; } printf("Stopping the FTP daemon, pid=%d\n", g_ftpdglob.pid); g_ftpdglob.stop = true; return EXIT_SUCCESS; }