int main(int argc, char *argv[])
{
char *tempo_exec_name = NULL;
char localmachine[MAXHOSTNAMELEN + 1];
int c;
int pidfile;
#ifndef HAVE_DAEMON
pid_t son_pid;
#endif
sigset_t signals_to_block;
/* Set the server's boot time and epoch */
now(&ServerBootTime);
ServerEpoch = (time_t) ServerBootTime.tv_sec;
tempo_exec_name = strrchr(argv[0], '/');
if (tempo_exec_name != NULL) {
exec_name = gsh_strdup(tempo_exec_name + 1);
if (!exec_name) {
fprintf(stderr,
"Unable to allocate memory for exec name, exiting...\n");
exit(1);
}
}
if (*exec_name == '\0')
exec_name = argv[0];
/* get host name */
if (gethostname(localmachine, sizeof(localmachine)) != 0) {
fprintf(stderr, "Could not get local host name, exiting...\n");
exit(1);
} else {
host_name = gsh_strdup(localmachine);
if (!host_name) {
fprintf(stderr,
"Unable to allocate memory for hostname, exiting...\n");
exit(1);
}
}
/* now parsing options with getopt */
while ((c = getopt(argc, argv, options)) != EOF) {
switch (c) {
case '@':
/* A litlle backdoor to keep track of binary versions */
printf("%s compiled on %s at %s\n", exec_name, __DATE__,
__TIME__);
printf("Release = %s\n", VERSION);
printf("Release comment = %s\n", VERSION_COMMENT);
printf("Git HEAD = %s\n", _GIT_HEAD_COMMIT);
printf("Git Describe = %s\n", _GIT_DESCRIBE);
exit(0);
break;
case 'L':
/* Default Log */
log_path = gsh_strdup(optarg);
if (!log_path) {
fprintf(stderr,
"Unable to allocate memory for log path.\n");
exit(1);
}
break;
case 'N':
/* debug level */
debug_level = ReturnLevelAscii(optarg);
if (debug_level == -1) {
fprintf(stderr,
"Invalid value for option 'N': NIV_NULL, NIV_MAJ, NIV_CRIT, NIV_EVENT, NIV_DEBUG, NIV_MID_DEBUG or NIV_FULL_DEBUG expected.\n");
exit(1);
}
break;
case 'f':
/* config file */
config_path = gsh_strdup(optarg);
if (!config_path) {
fprintf(stderr,
"Unable to allocate memory for config path.\n");
exit(1);
}
break;
case 'p':
/* PID file */
pidfile_path = gsh_strdup(optarg);
if (!pidfile_path) {
fprintf(stderr,
"Path %s too long for option 'f'.\n",
optarg);
exit(1);
}
break;
case 'd':
/* Detach or not detach ? */
detach_flag = true;
break;
case 'R':
/* Shall we manage RPCSEC_GSS ? */
fprintf(stderr,
"\n\nThe -R flag is deprecated, use this syntax in the configuration file instead:\n\n");
fprintf(stderr, "NFS_KRB5\n");
fprintf(stderr, "{\n");
fprintf(stderr,
"\tPrincipalName = nfs@<your_host> ;\n");
fprintf(stderr, "\tKeytabPath = /etc/krb5.keytab ;\n");
fprintf(stderr, "\tActive_krb5 = true ;\n");
fprintf(stderr, "}\n\n\n");
exit(1);
break;
case 'T':
/* Dump the default configuration on stdout */
my_nfs_start_info.dump_default_config = true;
break;
case 'E':
ServerEpoch = (time_t) atoll(optarg);
break;
case '?':
case 'h':
default:
/* display the help */
fprintf(stderr, usage, exec_name);
exit(0);
break;
}
}
/* initialize memory and logging */
nfs_prereq_init(exec_name, host_name, debug_level, log_path);
LogEvent(COMPONENT_MAIN,
"%s Starting: Version %s, built at %s %s on %s",
exec_name, GANESHA_VERSION, __DATE__, __TIME__, BUILD_HOST);
/* Start in background, if wanted */
if (detach_flag) {
#ifdef HAVE_DAEMON
/* daemonize the process (fork, close xterm fds,
* detach from parent process) */
if (daemon(0, 0))
LogFatal(COMPONENT_MAIN,
"Error detaching process from parent: %s",
strerror(errno));
#else
/* Step 1: forking a service process */
switch (son_pid = fork()) {
case -1:
/* Fork failed */
LogFatal(COMPONENT_MAIN,
"Could not start nfs daemon (fork error %d (%s)",
errno, strerror(errno));
break;
case 0:
/* This code is within the son (that will actually work)
* Let's make it the leader of its group of process */
if (setsid() == -1) {
LogFatal(COMPONENT_MAIN,
"Could not start nfs daemon (setsid error %d (%s)",
errno, strerror(errno));
}
break;
default:
/* This code is within the parent process,
* it is useless, it must die */
LogFullDebug(COMPONENT_MAIN,
"Starting a child of pid %d",
son_pid);
exit(0);
break;
}
#endif
}
/* Make sure Linux file i/o will return with error
* if file size is exceeded. */
#ifdef _LINUX
signal(SIGXFSZ, SIG_IGN);
#endif
/* Echo PID into pidfile */
pidfile = open(pidfile_path, O_CREAT | O_RDWR, 0644);
if (pidfile == -1) {
LogFatal(COMPONENT_MAIN, "Can't open pid file %s for writing",
pidfile_path);
} else {
char linebuf[1024];
struct flock lk;
/* Try to obtain a lock on the file */
lk.l_type = F_WRLCK;
lk.l_whence = SEEK_SET;
lk.l_start = (off_t) 0;
lk.l_len = (off_t) 0;
if (fcntl(pidfile, F_SETLK, &lk) == -1)
LogFatal(COMPONENT_MAIN, "Ganesha already started");
/* Put pid into file, then close it */
(void)snprintf(linebuf, sizeof(linebuf), "%u\n", getpid());
if (write(pidfile, linebuf, strlen(linebuf)) == -1)
LogCrit(COMPONENT_MAIN, "Couldn't write pid to file %s",
pidfile_path);
}
/* Set up for the signal handler.
* Blocks the signals the signal handler will handle.
*/
sigemptyset(&signals_to_block);
sigaddset(&signals_to_block, SIGTERM);
sigaddset(&signals_to_block, SIGHUP);
sigaddset(&signals_to_block, SIGPIPE);
if (pthread_sigmask(SIG_BLOCK, &signals_to_block, NULL) != 0)
LogFatal(COMPONENT_MAIN,
"Could not start nfs daemon, pthread_sigmask failed");
/* Parse the configuration file so we all know what is going on. */
if (config_path == NULL) {
LogFatal(COMPONENT_INIT,
"start_fsals: No configuration file named.");
return 1;
}
config_struct = config_ParseFile(config_path);
if (!config_struct) {
LogFatal(COMPONENT_INIT, "Error while parsing %s: %s",
config_path, config_GetErrorMsg());
}
/* We need all the fsal modules loaded so we can have
* the list available at exports parsing time.
*/
start_fsals(config_struct);
/* parse configuration file */
if (nfs_set_param_from_conf(config_struct, &my_nfs_start_info)) {
LogFatal(COMPONENT_INIT,
"Error setting parameters from configuration file.");
}
if (nfs_check_param_consistency()) {
LogFatal(COMPONENT_INIT,
"Inconsistent parameters found. Exiting...");
}
if (init_fsals(config_struct)) { /* init the FSALs from the config */
LogFatal(COMPONENT_INIT,
"FSALs could not initialize. Exiting...");
}
/* freeing syntax tree : */
config_Free(config_struct);
/* Everything seems to be OK! We can now start service threads */
nfs_start(&my_nfs_start_info);
return 0;
}
int main(int argc, char *argv[])
{
char *tempo_exec_name = NULL;
char localmachine[MAXHOSTNAMELEN + 1];
int c;
int dsc;
int rc;
int pidfile;
char *log_path = NULL;
char *exec_name = "nfs-ganesha";
int debug_level = -1;
int detach_flag = true;
bool dump_trace = false;
#ifndef HAVE_DAEMON
int dev_null_fd = 0;
pid_t son_pid;
#endif
sigset_t signals_to_block;
struct config_error_type err_type;
/* Set the server's boot time and epoch */
now(&nfs_ServerBootTime);
nfs_ServerEpoch = (time_t) nfs_ServerBootTime.tv_sec;
srand(nfs_ServerEpoch);
tempo_exec_name = strrchr(argv[0], '/');
if (tempo_exec_name != NULL)
exec_name = main_strdup("exec_name", tempo_exec_name + 1);
if (*exec_name == '\0')
exec_name = argv[0];
/* get host name */
if (gethostname(localmachine, sizeof(localmachine)) != 0) {
fprintf(stderr, "Could not get local host name, exiting...\n");
exit(1);
} else {
nfs_host_name = main_strdup("host_name", localmachine);
}
/* now parsing options with getopt */
while ((c = getopt(argc, argv, options)) != EOF) {
switch (c) {
case 'v':
case '@':
printf("NFS-Ganesha Release = V%s\n", GANESHA_VERSION);
#if !GANESHA_BUILD_RELEASE
/* A little backdoor to keep track of binary versions */
printf("%s compiled on %s at %s\n", exec_name, __DATE__,
__TIME__);
printf("Release comment = %s\n", VERSION_COMMENT);
printf("Git HEAD = %s\n", _GIT_HEAD_COMMIT);
printf("Git Describe = %s\n", _GIT_DESCRIBE);
#endif
exit(0);
break;
case 'L':
/* Default Log */
log_path = main_strdup("log_path", optarg);
break;
case 'N':
/* debug level */
debug_level = ReturnLevelAscii(optarg);
if (debug_level == -1) {
fprintf(stderr,
"Invalid value for option 'N': NIV_NULL, NIV_MAJ, NIV_CRIT, NIV_EVENT, NIV_DEBUG, NIV_MID_DEBUG or NIV_FULL_DEBUG expected.\n");
exit(1);
}
break;
case 'f':
/* config file */
nfs_config_path = main_strdup("config_path", optarg);
break;
case 'p':
/* PID file */
nfs_pidfile_path = main_strdup("pidfile_path", optarg);
break;
case 'F':
/* Don't detach, foreground mode */
detach_flag = false;
break;
case 'R':
/* Shall we manage RPCSEC_GSS ? */
fprintf(stderr,
"\n\nThe -R flag is deprecated, use this syntax in the configuration file instead:\n\n");
fprintf(stderr, "NFS_KRB5\n");
fprintf(stderr, "{\n");
fprintf(stderr,
"\tPrincipalName = nfs@<your_host> ;\n");
fprintf(stderr, "\tKeytabPath = /etc/krb5.keytab ;\n");
fprintf(stderr, "\tActive_krb5 = true ;\n");
fprintf(stderr, "}\n\n\n");
exit(1);
break;
case 'T':
/* Dump the default configuration on stdout */
my_nfs_start_info.dump_default_config = true;
break;
case 'C':
dump_trace = true;
break;
case 'E':
nfs_ServerEpoch = (time_t) atoll(optarg);
break;
case 'h':
fprintf(stderr, usage, exec_name);
exit(0);
default: /* '?' */
fprintf(stderr, "Try '%s -h' for usage\n", exec_name);
exit(1);
}
}
/* initialize memory and logging */
nfs_prereq_init(exec_name, nfs_host_name, debug_level, log_path,
dump_trace);
#if GANESHA_BUILD_RELEASE
LogEvent(COMPONENT_MAIN, "%s Starting: Ganesha Version %s",
exec_name, GANESHA_VERSION);
#else
LogEvent(COMPONENT_MAIN, "%s Starting: %s",
exec_name,
"Ganesha Version " _GIT_DESCRIBE ", built at "
__DATE__ " " __TIME__ " on " BUILD_HOST);
#endif
/* initialize nfs_init */
nfs_init_init();
nfs_check_malloc();
/* Start in background, if wanted */
if (detach_flag) {
#ifdef HAVE_DAEMON
/* daemonize the process (fork, close xterm fds,
* detach from parent process) */
if (daemon(0, 0))
LogFatal(COMPONENT_MAIN,
"Error detaching process from parent: %s",
strerror(errno));
/* In the child process, change the log header
* if not, the header will contain the parent's pid */
set_const_log_str();
#else
/* Step 1: forking a service process */
switch (son_pid = fork()) {
case -1:
/* Fork failed */
LogFatal(COMPONENT_MAIN,
"Could not start nfs daemon (fork error %d (%s)",
errno, strerror(errno));
break;
case 0:
/* This code is within the son (that will actually work)
* Let's make it the leader of its group of process */
if (setsid() == -1) {
LogFatal(COMPONENT_MAIN,
"Could not start nfs daemon (setsid error %d (%s)",
errno, strerror(errno));
}
/* stdin, stdout and stderr should not refer to a tty
* I close 0, 1 & 2 and redirect them to /dev/null */
dev_null_fd = open("/dev/null", O_RDWR);
if (dev_null_fd < 0)
LogFatal(COMPONENT_MAIN,
"Could not open /dev/null: %d (%s)",
errno, strerror(errno));
if (close(STDIN_FILENO) == -1)
LogEvent(COMPONENT_MAIN,
"Error while closing stdin: %d (%s)",
errno, strerror(errno));
else {
LogEvent(COMPONENT_MAIN, "stdin closed");
dup(dev_null_fd);
}
if (close(STDOUT_FILENO) == -1)
LogEvent(COMPONENT_MAIN,
"Error while closing stdout: %d (%s)",
errno, strerror(errno));
else {
LogEvent(COMPONENT_MAIN, "stdout closed");
dup(dev_null_fd);
}
if (close(STDERR_FILENO) == -1)
LogEvent(COMPONENT_MAIN,
"Error while closing stderr: %d (%s)",
errno, strerror(errno));
else {
LogEvent(COMPONENT_MAIN, "stderr closed");
dup(dev_null_fd);
}
if (close(dev_null_fd) == -1)
LogFatal(COMPONENT_MAIN,
"Could not close tmp fd to /dev/null: %d (%s)",
errno, strerror(errno));
/* In the child process, change the log header
* if not, the header will contain the parent's pid */
set_const_log_str();
break;
default:
/* This code is within the parent process,
* it is useless, it must die */
LogFullDebug(COMPONENT_MAIN,
"Starting a child of pid %d",
son_pid);
exit(0);
break;
}
#endif
}
/* Make sure Linux file i/o will return with error
* if file size is exceeded. */
#ifdef _LINUX
signal(SIGXFSZ, SIG_IGN);
#endif
/* Echo PID into pidfile */
pidfile = open(nfs_pidfile_path, O_CREAT | O_RDWR, 0644);
if (pidfile == -1) {
LogFatal(COMPONENT_MAIN, "Can't open pid file %s for writing",
nfs_pidfile_path);
} else {
char linebuf[1024];
struct flock lk;
/* Try to obtain a lock on the file */
lk.l_type = F_WRLCK;
lk.l_whence = SEEK_SET;
lk.l_start = (off_t) 0;
lk.l_len = (off_t) 0;
if (fcntl(pidfile, F_SETLK, &lk) == -1)
LogFatal(COMPONENT_MAIN, "Ganesha already started");
/* Put pid into file, then close it */
(void)snprintf(linebuf, sizeof(linebuf), "%u\n", getpid());
if (write(pidfile, linebuf, strlen(linebuf)) == -1)
LogCrit(COMPONENT_MAIN, "Couldn't write pid to file %s",
nfs_pidfile_path);
}
/* Set up for the signal handler.
* Blocks the signals the signal handler will handle.
*/
sigemptyset(&signals_to_block);
sigaddset(&signals_to_block, SIGTERM);
sigaddset(&signals_to_block, SIGHUP);
sigaddset(&signals_to_block, SIGPIPE);
if (pthread_sigmask(SIG_BLOCK, &signals_to_block, NULL) != 0)
LogFatal(COMPONENT_MAIN,
"Could not start nfs daemon, pthread_sigmask failed");
/* init URL package */
config_url_init();
/* Create a memstream for parser+processing error messages */
if (!init_error_type(&err_type))
goto fatal_die;
/* Parse the configuration file so we all know what is going on. */
if (nfs_config_path == NULL || nfs_config_path[0] == '\0') {
LogWarn(COMPONENT_INIT,
"No configuration file named.");
nfs_config_struct = NULL;
} else
nfs_config_struct =
config_ParseFile(nfs_config_path, &err_type);
if (!config_error_no_error(&err_type)) {
char *errstr = err_type_str(&err_type);
if (!config_error_is_harmless(&err_type)) {
LogCrit(COMPONENT_INIT,
"Error %s while parsing (%s)",
errstr != NULL ? errstr : "unknown",
nfs_config_path);
if (errstr != NULL)
gsh_free(errstr);
goto fatal_die;
} else
LogWarn(COMPONENT_INIT,
"Error %s while parsing (%s)",
errstr != NULL ? errstr : "unknown",
nfs_config_path);
if (errstr != NULL)
gsh_free(errstr);
}
if (read_log_config(nfs_config_struct, &err_type) < 0) {
LogCrit(COMPONENT_INIT,
"Error while parsing log configuration");
goto fatal_die;
}
/* We need all the fsal modules loaded so we can have
* the list available at exports parsing time.
*/
start_fsals();
/* parse configuration file */
if (nfs_set_param_from_conf(nfs_config_struct,
&my_nfs_start_info,
&err_type)) {
LogCrit(COMPONENT_INIT,
"Error setting parameters from configuration file.");
goto fatal_die;
}
/* initialize core subsystems and data structures */
if (init_server_pkgs() != 0) {
LogCrit(COMPONENT_INIT,
"Failed to initialize server packages");
goto fatal_die;
}
/* Load Data Server entries from parsed file
* returns the number of DS entries.
*/
dsc = ReadDataServers(nfs_config_struct, &err_type);
if (dsc < 0) {
LogCrit(COMPONENT_INIT,
"Error while parsing DS entries");
goto fatal_die;
}
/* Create stable storage directory, this needs to be done before
* starting the recovery thread.
*/
rc = nfs4_recovery_init();
if (rc) {
LogCrit(COMPONENT_INIT,
"Recovery backend initialization failed!");
goto fatal_die;
}
/* Start grace period */
nfs_start_grace(NULL);
/* Wait for enforcement to begin */
nfs_wait_for_grace_enforcement();
/* Load export entries from parsed file
* returns the number of export entries.
*/
rc = ReadExports(nfs_config_struct, &err_type);
if (rc < 0) {
LogCrit(COMPONENT_INIT,
"Error while parsing export entries");
goto fatal_die;
}
if (rc == 0 && dsc == 0)
LogWarn(COMPONENT_INIT,
"No export entries found in configuration file !!!");
report_config_errors(&err_type, NULL, config_errs_to_log);
/* freeing syntax tree : */
config_Free(nfs_config_struct);
/* Everything seems to be OK! We can now start service threads */
nfs_start(&my_nfs_start_info);
return 0;
fatal_die:
report_config_errors(&err_type, NULL, config_errs_to_log);
LogFatal(COMPONENT_INIT,
"Fatal errors. Server exiting...");
/* NOT REACHED */
return 2;
}
int main(int argc, char *argv[])
{
int c;
int exportid = 0;
char buffer[CMD_BUFFER_SIZE];
char str[2 * CMD_BUFFER_SIZE];
fhandle2 filehandle_v2;
struct nfs_fh3 filehandle_v3;
nfs_fh4 filehandle_v4;
int flag_i = FALSE;
char exec_name[MAXPATHLEN];
char *tempo_exec_name = NULL;
cache_inode_fsal_data_t fsal_data;
fsal_op_context_t fsal_op_context;
fsal_export_context_t fsal_export_context;
exportlist_t *pexportlist = NULL;
exportlist_t *pexport = NULL;
nfs_start_info_t nfs_start_info;
fsal_status_t fsal_status;
unsigned int nfs_version = 3;
path_str_t fsal_path_lib[NB_AVAILABLE_FSAL];
#ifdef _USE_SHARED_FSAL
int lentab = NB_AVAILABLE_FSAL ;
#endif
short cache_content_hash;
char entry_path[MAXPATHLEN];
int i, nb_char;
fsal_path_t export_path = FSAL_PATH_INITIALIZER;
unsigned int cookie;
fsal_xattrent_t xattr_array[256];
unsigned int nb_returned;
int eol;
char attr_buffer[4096];
size_t sz_returned;
fsal_u64_t objid;
char options[] = "h@f:v:i:";
char usage[] = "%s [-h][-f <cfg_path>] {-v 2|3|4 <NFS_FileHandle> | -i <inum>}\n"
" -h : prints this help\n"
" -f <config_file> : sets the ganesha configuration file to be used\n"
" -v <nfs_version> : sets the NFS version the file handle passed as argument\n"
" -i <inum> : get datacache path for the given inode number (decimal)\n";
ServerBootTime = time(NULL);
SetDefaultLogging("STDERR");
/* What is the executable file's name */
if((tempo_exec_name = strrchr(argv[0], '/')) != NULL)
strcpy((char *)exec_name, tempo_exec_name + 1);
strncpy(config_path, DEFAULT_CONFIG_FILE, MAXPATHLEN);
/* now parsing options with getopt */
while((c = getopt(argc, argv, options)) != EOF)
{
switch (c)
{
case '@':
printf("%s compiled on %s at %s\n", exec_name, __DATE__, __TIME__);
exit(0);
break;
case 'h':
printf(usage, exec_name);
exit(0);
break;
case 'f':
strncpy(config_path, optarg, MAXPATHLEN);
break;
case 'i':
if(sscanf(optarg, "%llu", &objid) != 1)
{
fprintf(stderr, "Invalid object_id %s (base-10 integer expected)\n",
optarg);
exit(1);
}
flag_i = TRUE;
break;
case 'v':
nfs_version = atoi(optarg);
if((nfs_version < 2) || (nfs_version > 4))
{
fprintf(stderr, "Invalid nfs version %u\n", nfs_version);
exit(1);
}
break;
case '?':
printf("Unknown option: %c\n", optopt);
printf(usage, exec_name);
exit(1);
}
}
if(!flag_i && (optind != argc - 1))
{
printf("Missing argument: <NFS_FileHandle>\n");
printf(usage, exec_name);
exit(1);
}
/* initialize memory and logging */
nfs_prereq_init("convert_fh", "localhost", NIV_MAJ, "/dev/tty");
#ifdef _USE_SHARED_FSAL
if(nfs_get_fsalpathlib_conf(config_path, fsal_path_lib, &lentab))
{
fprintf(stderr, "NFS MAIN: Error parsing configuration file.");
exit(1);
}
#endif /* _USE_SHARED_FSAL */
/* Load the FSAL library (if needed) */
if(!FSAL_LoadLibrary((char *)fsal_path_lib)) /** @todo: this part of the code and this utility has to be checked */
{
fprintf(stderr, "NFS MAIN: Could not load FSAL dynamic library %s", (char *)fsal_path_lib[0]);
exit(1);
}
/* Get the FSAL functions */
FSAL_LoadFunctions();
/* Get the FSAL consts */
FSAL_LoadConsts();
/* initialize default parameters */
nfs_set_param_default();
/* parse configuration file */
if(nfs_set_param_from_conf(&nfs_start_info))
{
fprintf(stderr, "Error parsing configuration file '%s'", config_path);
exit(1);
}
/* check parameters consitency */
if(nfs_check_param_consistency())
{
fprintf(stderr, "Inconsistent parameters found");
exit(1);
}
if(!nfs_param.pexportlist)
{
fprintf(stderr, "No export entries found in configuration file !!!\n");
return -1;
}
pexportlist = nfs_param.pexportlist;
/* not initialization is needed for converting fileid to path in datacache */
if(!flag_i)
{
#ifdef _USE_SHARED_FSAL
fsal_status = FSAL_Init(&nfs_param.fsal_param[0]);
#else
fsal_status = FSAL_Init(&nfs_param.fsal_param);
#endif
if(FSAL_IS_ERROR(fsal_status))
{
/* Failed init */
fprintf(stderr, "FSAL library could not be initialized, major=%d minor=%d\n",
fsal_status.major, fsal_status.minor);
exit(1);
}
strncpy(str, argv[optind], 2 * CMD_BUFFER_SIZE);
switch (nfs_version)
{
case 2:
if(sscanmem(filehandle_v2, sizeof(file_handle_v2_t), (char *)str) == -1)
{
fprintf(stderr, "Bad FH as input (expected size: %lu bytes)\n",
(unsigned long)sizeof(file_handle_v2_t));
exit(1);
}
exportid = nfs2_FhandleToExportId(&filehandle_v2);
break;
case 3:
if(sscanmem(buffer, sizeof(file_handle_v3_t), (char *)str) == -1)
{
fprintf(stderr, "Bad FH as input (expected size: %lu bytes)\n",
(unsigned long)sizeof(file_handle_v3_t));
exit(1);
}
filehandle_v3.data.data_val = (char *)buffer;
filehandle_v3.data.data_len = sizeof(file_handle_v3_t);
exportid = nfs3_FhandleToExportId(&filehandle_v3);
break;
case 4:
if(sscanmem(buffer, sizeof(file_handle_v4_t), (char *)str) == -1)
{
fprintf(stderr, "Bad FH as input (expected size: %lu bytes)\n",
(unsigned long)sizeof(file_handle_v4_t));
exit(1);
}
filehandle_v4.nfs_fh4_val = (char *)buffer;
filehandle_v4.nfs_fh4_len = sizeof(file_handle_v4_t);
exportid = nfs4_FhandleToExportId(&filehandle_v4);
break;
}
if((pexport = nfs_Get_export_by_id(pexportlist, exportid)) == NULL)
{
fprintf(stderr, "NFS FH has exportid %u which is invalid....\n", exportid);
exit(1);
}
/* INITIALIZING A CLIENT CONTEXT FOR FSAL */
FSAL_str2path(pexport->fullpath, MAXPATHLEN, &export_path);
if(FSAL_IS_ERROR
(fsal_status =
FSAL_BuildExportContext(&fsal_export_context, &export_path,
pexport->FS_specific)))
{
fprintf(stderr, "Error in FSAL_BuildExportContext, major=%u, minor=%u\n",
fsal_status.major, fsal_status.minor);
exit(1);
}
fsal_status = FSAL_InitClientContext(&fsal_op_context);
if(FSAL_IS_ERROR(fsal_status))
{
/* Failed init */
fprintf(stderr, "Could not init client context... major=%d minor=%d\n",
fsal_status.major, fsal_status.minor);
exit(1);
}
fsal_status = FSAL_GetClientContext(&fsal_op_context,
&fsal_export_context, 0, 0, NULL, 0);
if(FSAL_IS_ERROR(fsal_status))
{
/* Failed init */
fprintf(stderr, "Could not get cred for uid=%d gid=%d, major=%d minor=%d\n",
getuid(), getgid(), fsal_status.major, fsal_status.minor);
exit(1);
}
/* now, can use the fsal_op_context */
switch (nfs_version)
{
case 2:
if(!nfs2_FhandleToFSAL(&filehandle_v2, &fsal_data.handle, &fsal_op_context))
{
fprintf(stderr, "Cannot convert Fhandle to FSAL\n");
exit(1);
}
break;
case 3:
if(!nfs3_FhandleToFSAL(&filehandle_v3, &fsal_data.handle, &fsal_op_context))
{
fprintf(stderr, "Cannot convert Fhandle to FSAL\n");
exit(1);
}
break;
case 4:
if(!nfs4_FhandleToFSAL(&filehandle_v4, &fsal_data.handle, &fsal_op_context))
{
fprintf(stderr, "Cannot convert Fhandle to FSAL\n");
exit(1);
}
break;
}
printf("\n");
snprintmem((caddr_t) str, 2 * CMD_BUFFER_SIZE, (caddr_t) & fsal_data.handle,
sizeof(fsal_data.handle));
printf("%-18s = %s\n", "FSAL Handle", str);
/* Now, list FSAL extended attributes */
cookie = XATTRS_READLIST_FROM_BEGINNING;
eol = FALSE;
while(!eol)
{
unsigned int index;
fsal_status = FSAL_ListXAttrs(&fsal_data.handle, cookie, &fsal_op_context,
xattr_array, 256, &nb_returned, &eol);
if(FSAL_IS_ERROR(fsal_status))
{
fprintf(stderr, "Error executing FSAL_ListXAttrs\n");
exit(1);
}
/* list attributes and get their value */
for(index = 0; index < nb_returned; index++)
{
cookie = xattr_array[index].xattr_cookie;
printf("%-18s = ", xattr_array[index].xattr_name.name);
fsal_status =
FSAL_GetXAttrValueByName(&fsal_data.handle,
&xattr_array[index].xattr_name,
&fsal_op_context, attr_buffer, 4096,
&sz_returned);
if(FSAL_IS_ERROR(fsal_status))
{
fprintf(stderr, "Error executing FSAL_GetXAttrValueByName\n");
}
/* Display it */
print_buffer(attr_buffer, sz_returned);
}
}
/* get object ID */
fsal_status =
FSAL_DigestHandle(&fsal_export_context, FSAL_DIGEST_FILEID4, &fsal_data.handle,
(caddr_t) & objid);
if(FSAL_IS_ERROR(fsal_status))
{
fprintf(stderr, "Error retrieving fileid from handle\n");
}
else
{
printf("%-18s = %llu\n", "FileId", objid);
}
}
/* end of retrieval of objid */
/* build the path in the datacache */
cache_content_hash = HashFileID4(objid);
/* for limiting the number of entries into each datacache directory
* we create 256 subdirectories on 2 levels, depending on the entry's fileid.
*/
nb_char = snprintf(entry_path, MAXPATHLEN, "export_id=%d", 0);
for(i = 0; i <= 8; i += 8)
{
/* concatenation of hashval */
nb_char += snprintf((char *)(entry_path + nb_char), MAXPATHLEN - nb_char,
"/%02hhX", (char)((cache_content_hash >> i) & 0xFF));
}
/* displays the node name */
printf("%-18s = %s/%s/node=%llx*\n", "DataCache path",
nfs_param.cache_layers_param.cache_content_client_param.cache_dir, entry_path,
objid);
exit(0);
}
int ganefuse_main(int argc, char *argv[],
const struct ganefuse_operations *op, void *user_data)
{
char *tempo_exec_name = NULL;
char localmachine[MAXHOSTNAMELEN];
int c;
pid_t son_pid;
int argc_local = argc;
char **argv_local = argv;
/* local copy for keeping it read only */
ops = *op;
/* retrieve executable file's name */
strncpy(ganesha_exec_path, argv[0], MAXPATHLEN);
if((tempo_exec_name = strrchr(argv_local[0], '/')) != NULL)
strcpy((char *)exec_name, tempo_exec_name + 1);
if(*exec_name == '\0')
strcpy((char *)exec_name, argv_local[0]);
/* get host name */
if(gethostname(localmachine, sizeof(localmachine)) != 0)
{
fprintf(stderr, "Could not get local host name, exiting...");
exit(1);
}
else
strncpy(host_name, localmachine, MAXHOSTNAMELEN);
/* now parsing options with getopt */
while((c = getopt(argc_local, argv_local, options)) != EOF)
{
switch (c)
{
case '@':
/* A litlle backdoor to keep track of binary versions */
printf("%s compiled on %s at %s\n", exec_name, __DATE__, __TIME__);
printf("Release = %s\n", VERSION);
printf("Release comment = %s\n", VERSION_COMMENT);
exit(0);
break;
case 'L':
/* Default Log */
strncpy(log_path, optarg, MAXPATHLEN);
break;
case 'N':
/* debug level */
debug_level = ReturnLevelAscii(optarg);
if(debug_level == -1)
{
fprintf(stderr,
"Invalid value for option 'N': NIV_NULL, NIV_MAJ, NIV_CRIT, NIV_EVENT, NIV_DEBUG, NIV_MID_DEBUG or NIV_FULL_DEBUG expected.\n");
exit(1);
}
break;
case 'f':
/* config file */
strncpy(config_path, optarg, MAXPATHLEN);
break;
case 's':
/* single threaded */
single_threaded = TRUE;
break;
case 'd':
/* Detach or not detach ? */
detach_flag = TRUE;
break;
case 'R':
/* Shall we manage RPCSEC_GSS ? */
fprintf(stderr,
"\n\nThe -R flag is deprecated, use this syntax in the configuration file instead:\n\n");
fprintf(stderr, "NFS_KRB5\n");
fprintf(stderr, "{\n");
fprintf(stderr, "\tPrincipalName = nfs@<your_host> ;\n");
fprintf(stderr, "\tKeytabPath = /etc/krb5.keytab ;\n");
fprintf(stderr, "\tActive_krb5 = TRUE ;\n");
fprintf(stderr, "}\n\n\n");
exit(1);
break;
case 'F':
/* Flushes the data cache to the FSAL and purges the cache */
nfs_start_info.flush_datacache_mode = TRUE;
nfs_start_info.flush_behaviour = CACHE_CONTENT_FLUSH_AND_DELETE;
nfs_start_info.nb_flush_threads = (unsigned int)atoi(optarg);
if(nfs_start_info.nb_flush_threads > NB_MAX_FLUSHER_THREAD)
nfs_start_info.nb_flush_threads = NB_MAX_FLUSHER_THREAD;
break;
case 'S':
/* Flushes the data cache to the FSAL, without purging the cache */
nfs_start_info.flush_datacache_mode = TRUE;
nfs_start_info.flush_behaviour = CACHE_CONTENT_FLUSH_SYNC_ONLY;
nfs_start_info.nb_flush_threads = (unsigned int)atoi(optarg);
if(nfs_start_info.nb_flush_threads > NB_MAX_FLUSHER_THREAD)
nfs_start_info.nb_flush_threads = NB_MAX_FLUSHER_THREAD;
break;
case 'h':
/* display the help */
fprintf(stderr, usage, exec_name);
exit(0);
break;
case '?':
default:
/* ignore unsupported options */
fprintf(stderr, "WARNING: unknown GANESHA NFS daemon option: %c\n",
(char)optopt);
}
}
/* initialize memory and logging */
nfs_prereq_init(exec_name, host_name, debug_level, log_path);
/* Start in background, if wanted */
if(detach_flag)
{
/* Step 1: forking a service process */
switch (son_pid = fork())
{
case -1:
/* Fork failed */
LogError(COMPONENT_MAIN, ERR_SYS, ERR_FORK, errno);
LogCrit(COMPONENT_MAIN,
"Could nout start nfs daemon, exiting...");
exit(1);
case 0:
/* This code is within the son (that will actually work)
* Let's make it the leader of its group of process */
if(setsid() == -1)
{
LogError(COMPONENT_MAIN, ERR_SYS, ERR_SETSID, errno);
LogCrit(COMPONENT_MAIN,
"Could nout start nfs daemon, exiting...");
exit(1);
}
break;
default:
/* This code is within the father, it is useless, it must die */
LogFullDebug(COMPONENT_MAIN,
"Starting a son of pid %d\n", son_pid);
exit(0);
break;
}
}
/* Get the FSAL functions */
FSAL_LoadFunctions();
/* Get the FSAL consts */
FSAL_LoadConsts();
LogEvent(COMPONENT_MAIN,
">>>>>>>>>> Starting GANESHA NFS Daemon on FSAL/%s <<<<<<<<<<",
FSAL_GetFSName());
/* initialize default parameters */
nfs_set_param_default();
/* return all errors */
nfs_param.core_param.drop_io_errors = FALSE;
nfs_param.core_param.drop_inval_errors = FALSE;
nfs_param.core_param.drop_delay_errors = FALSE;
/* parse configuration file (if specified) */
if(strlen(config_path) > 0)
{
if(nfs_set_param_from_conf(&nfs_start_info))
{
LogCrit(COMPONENT_MAIN,
"NFS MAIN: Error parsing configuration file.");
exit(1);
}
}
/* set filesystem relative info */
((fusefs_specific_initinfo_t *) &nfs_param.fsal_param.fs_specific_info)->fs_ops = &ops;
((fusefs_specific_initinfo_t *) &nfs_param.fsal_param.fs_specific_info)->user_data = user_data;
#ifdef _SNMP_ADM_ACTIVE
if(!nfs_param.extern_param.snmp_adm.snmp_log_file[0])
strcpy(nfs_param.extern_param.snmp_adm.snmp_log_file, log_path);
#endif
/* add export by hand if no export was defined
* in config file (always '/')
*/
if(!nfs_param.pexportlist)
{
nfs_param.pexportlist = BuildDefaultExport();
if(nfs_param.pexportlist == NULL)
{
LogCrit(COMPONENT_MAIN,
"NFS MAIN: Could not create export entry for '/'");
exit(1);
}
}
/* if this is a single threaded application, set worker count */
if(single_threaded)
nfs_param.core_param.nb_worker = 1;
/* check parameters consitency */
if(nfs_check_param_consistency())
{
LogMajor(COMPONENT_MAIN,
"NFS MAIN: Inconsistent parameters found");
LogMajor(COMPONENT_MAIN,
"MAJOR WARNING: /!\\ | Bad Parameters could have significant impact on the daemon behavior");
exit(1);
}
/* Everything seems to be OK! We can now start service threads */
nfs_start(&nfs_start_info);
return 0;
}
