/*
- * $Id: main.c,v 1.5 2001-05-03 13:57:44 rufustfirefly Exp $
+ * $Id: main.c,v 1.26 2009-10-14 02:24:05 didg Exp $
*
* Copyright (c) 1990,1993 Regents of The University of Michigan.
* All Rights Reserved. See COPYRIGHT.
#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
+#endif /* HAVE_CONFIG_H */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
#include <signal.h>
-#include <sys/types.h>
-#include <sys/stat.h>
#include <sys/param.h>
#include <sys/uio.h>
-#include <sys/syslog.h>
+#include <atalk/logger.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <errno.h>
-#include <netatalk/endian.h>
+#include <atalk/adouble.h>
+
#include <netatalk/at.h>
#include <atalk/compat.h>
#include <atalk/dsi.h>
#include <atalk/atp.h>
#include <atalk/asp.h>
#include <atalk/afp.h>
-#include <atalk/adouble.h>
#include <atalk/paths.h>
#include <atalk/util.h>
#include <atalk/server_child.h>
+#include <atalk/server_ipc.h>
#include "globals.h"
#include "afp_config.h"
#include "status.h"
#include "fork.h"
#include "uam_auth.h"
+#include "afp_zeroconf.h"
+
+#ifdef TRU64
+#include <sys/security.h>
+#include <prot.h>
+#include <sia.h>
+
+static int argc = 0;
+static char **argv = NULL;
+#endif /* TRU64 */
unsigned char nologin = 0;
static AFPConfig *configs;
static server_child *server_children;
static fd_set save_rfds;
+static int Ipc_fd = -1;
+static sig_atomic_t reloadconfig = 0;
-#ifdef CAPDIR
-int addr_net, addr_node, addr_uid;
-char addr_name[32];
-#endif CAPDIR
+#ifdef TRU64
+void afp_get_cmdline( int *ac, char ***av)
+{
+ *ac = argc;
+ *av = argv;
+}
+#endif /* TRU64 */
static void afp_exit(const int i)
{
- server_unlock(default_options.pidfile);
- exit(i);
+ server_unlock(default_options.pidfile);
+ exit(i);
}
+/* ------------------
+ initialize fd set we are waiting for.
+*/
+static void set_fd(int ipc_fd)
+{
+ AFPConfig *config;
+
+ FD_ZERO(&save_rfds);
+ for (config = configs; config; config = config->next) {
+ if (config->fd < 0) /* for proxies */
+ continue;
+ FD_SET(config->fd, &save_rfds);
+ }
+ if (ipc_fd >= 0) {
+ FD_SET(ipc_fd, &save_rfds);
+ }
+}
+
+/* ------------------ */
static void afp_goaway(int sig)
{
+
#ifndef NO_DDP
asp_kill(sig);
-#endif
+#endif /* ! NO_DDP */
+
dsi_kill(sig);
switch( sig ) {
+
case SIGTERM :
- syslog( LOG_INFO, "shutting down on signal %d", sig );
- break;
+ LOG(log_info, logtype_afpd, "shutting down on signal %d", sig );
+ AFPConfig *config;
+ for (config = configs; config; config = config->next)
+ if (config->server_cleanup)
+ config->server_cleanup(config);
+ afp_exit(0);
+ break;
+
+ case SIGUSR1 :
+ nologin++;
+ auth_unload();
+ LOG(log_info, logtype_afpd, "disallowing logins");
+ break;
+
case SIGHUP :
- /* w/ a configuration file, we can force a re-read if we want */
- nologin++;
- if ((nologin + 1) & 1) {
- AFPConfig *config;
-
- syslog(LOG_INFO, "re-reading configuration file");
- for (config = configs; config; config = config->next)
- if (config->server_cleanup)
- config->server_cleanup(config);
-
- configfree(configs, NULL);
- if (!(configs = configinit(&default_options))) {
- syslog(LOG_ERR, "config re-read: no servers configured");
- afp_exit(1);
- }
- FD_ZERO(&save_rfds);
- for (config = configs; config; config = config->next) {
- if (config->fd < 0)
- continue;
- FD_SET(config->fd, &save_rfds);
- }
- } else {
- syslog(LOG_INFO, "disallowing logins");
- auth_unload();
- }
- break;
+ /* w/ a configuration file, we can force a re-read if we want */
+ reloadconfig = 1;
+ break;
+
default :
- syslog( LOG_ERR, "afp_goaway: bad signal" );
- }
- if ( sig == SIGTERM ) {
- AFPConfig *config;
-
- for (config = configs; config; config = config->next)
- if (config->server_cleanup)
- config->server_cleanup(config);
-
- afp_exit(0);
+ LOG(log_error, logtype_afpd, "afp_goaway: bad signal" );
}
return;
}
-static void child_handler()
+static void child_handler(int sig _U_)
{
- server_child_handler(server_children);
+ server_child_handler(server_children);
}
-int main( ac, av )
- int ac;
- char **av;
+int main(int ac, char **av)
{
AFPConfig *config;
fd_set rfds;
+ void *ipc;
struct sigaction sv;
sigset_t sigs;
+ int ret;
-#ifdef DIGITAL_UNIX_SECURITY
- set_auth_parameters( ac, av );
-#endif /* DIGITAL_UNIX_SECURITY */
-
- umask( 0 ); /* so inherited file permissions work right */
+#ifdef TRU64
+ argc = ac;
+ argv = av;
+ set_auth_parameters( ac, av );
+#endif /* TRU64 */
+#ifdef DEBUG1
+ fault_setup(NULL);
+#endif
afp_options_init(&default_options);
if (!afp_options_parse(ac, av, &default_options))
- exit(1);
-
- switch(server_lock("afpd", default_options.pidfile,
- default_options.flags & OPTION_DEBUG)) {
+ exit(EXITERR_CONF);
+
+ /* Save the user's current umask for use with CNID (and maybe some
+ * other things, too). */
+ default_options.save_mask = umask( default_options.umask );
+
+ switch(server_lock("afpd", default_options.pidfile,
+ default_options.flags & OPTION_DEBUG)) {
case -1: /* error */
- exit(1);
+ exit(EXITERR_SYS);
case 0: /* child */
- break;
+ break;
default: /* server */
- exit(0);
+ exit(0);
}
/* install child handler for asp and dsi. we do this before afp_goaway
* as afp_goaway references stuff from here.
* XXX: this should really be setup after the initial connections. */
if (!(server_children = server_child_alloc(default_options.connections,
- CHILD_NFORKS))) {
- syslog(LOG_ERR, "main: server_child alloc: %m");
- afp_exit(1);
+ CHILD_NFORKS))) {
+ LOG(log_error, logtype_afpd, "main: server_child alloc: %s", strerror(errno) );
+ afp_exit(EXITERR_SYS);
}
-
- memset(&sv, 0, sizeof(sv));
+
+ memset(&sv, 0, sizeof(sv));
+#ifdef AFP3x
+ /* linux at least up to 2.4.22 send a SIGXFZ for vfat fs,
+ even if the file is open with O_LARGEFILE ! */
+#ifdef SIGXFSZ
+ sv.sa_handler = SIG_IGN;
+ sigemptyset( &sv.sa_mask );
+ if (sigaction(SIGXFSZ, &sv, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
+ afp_exit(EXITERR_SYS);
+ }
+#endif
+#endif
+
sv.sa_handler = child_handler;
sigemptyset( &sv.sa_mask );
+ sigaddset(&sv.sa_mask, SIGALRM);
+ sigaddset(&sv.sa_mask, SIGHUP);
+ sigaddset(&sv.sa_mask, SIGTERM);
+ sigaddset(&sv.sa_mask, SIGUSR1);
+
sv.sa_flags = SA_RESTART;
- if ( sigaction( SIGCHLD, &sv, 0 ) < 0 ) {
- syslog( LOG_ERR, "main: sigaction: %m" );
- afp_exit(1);
+ if ( sigaction( SIGCHLD, &sv, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
+ afp_exit(EXITERR_SYS);
}
sv.sa_handler = afp_goaway;
sigemptyset( &sv.sa_mask );
+ sigaddset(&sv.sa_mask, SIGALRM);
+ sigaddset(&sv.sa_mask, SIGTERM);
sigaddset(&sv.sa_mask, SIGHUP);
+ sigaddset(&sv.sa_mask, SIGCHLD);
+ sv.sa_flags = SA_RESTART;
+ if ( sigaction( SIGUSR1, &sv, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
+ afp_exit(EXITERR_SYS);
+ }
+
+ sigemptyset( &sv.sa_mask );
+ sigaddset(&sv.sa_mask, SIGALRM);
sigaddset(&sv.sa_mask, SIGTERM);
+ sigaddset(&sv.sa_mask, SIGUSR1);
+ sigaddset(&sv.sa_mask, SIGCHLD);
sv.sa_flags = SA_RESTART;
- if ( sigaction( SIGHUP, &sv, 0 ) < 0 ) {
- syslog( LOG_ERR, "main: sigaction: %m" );
- afp_exit(1);
+ if ( sigaction( SIGHUP, &sv, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
+ afp_exit(EXITERR_SYS);
}
- if ( sigaction( SIGTERM, &sv, 0 ) < 0 ) {
- syslog( LOG_ERR, "main: sigaction: %m" );
- afp_exit(1);
+
+
+ sigemptyset( &sv.sa_mask );
+ sigaddset(&sv.sa_mask, SIGALRM);
+ sigaddset(&sv.sa_mask, SIGHUP);
+ sigaddset(&sv.sa_mask, SIGUSR1);
+ sigaddset(&sv.sa_mask, SIGCHLD);
+ sv.sa_flags = SA_RESTART;
+ if ( sigaction( SIGTERM, &sv, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
+ afp_exit(EXITERR_SYS);
}
-
+
/* afpd.conf: not in config file: lockfile, connections, configfile
* preference: command-line provides defaults.
* config file over-writes defaults.
*/
sigemptyset(&sigs);
+ sigaddset(&sigs, SIGALRM);
sigaddset(&sigs, SIGHUP);
+ sigaddset(&sigs, SIGUSR1);
+#if 0
+ /* don't block SIGTERM */
sigaddset(&sigs, SIGTERM);
- sigprocmask(SIG_BLOCK, &sigs, NULL);
+#endif
+ sigaddset(&sigs, SIGCHLD);
+
+ pthread_sigmask(SIG_BLOCK, &sigs, NULL);
if (!(configs = configinit(&default_options))) {
- syslog(LOG_ERR, "main: no servers configured: %m\n");
- afp_exit(1);
+ LOG(log_error, logtype_afpd, "main: no servers configured");
+ afp_exit(EXITERR_CONF);
}
- sigprocmask(SIG_UNBLOCK, &sigs, NULL);
+ pthread_sigmask(SIG_UNBLOCK, &sigs, NULL);
- /* watch atp and dsi sockets. */
- FD_ZERO(&save_rfds);
- for (config = configs; config; config = config->next) {
- if (config->fd < 0) /* for proxies */
- continue;
- FD_SET(config->fd, &save_rfds);
+ /* Register CNID */
+ cnid_init();
+
+ /* watch atp, dsi sockets and ipc parent/child file descriptor. */
+ if ((ipc = server_ipc_create())) {
+ Ipc_fd = server_ipc_parent(ipc);
}
-
+ set_fd(Ipc_fd);
+
/* wait for an appleshare connection. parent remains in the loop
* while the children get handled by afp_over_{asp,dsi}. this is
* currently vulnerable to a denial-of-service attack if a
* afterwards. establishing timeouts for logins is a possible
* solution. */
while (1) {
- rfds = save_rfds;
- if (select(FD_SETSIZE, &rfds, NULL, NULL, NULL) < 0) {
- if (errno == EINTR)
- continue;
- syslog(LOG_ERR, "main: can't wait for input: %m");
- break;
- }
-
- for (config = configs; config; config = config->next) {
- if (config->fd < 0)
- continue;
- if (FD_ISSET(config->fd, &rfds))
- config->server_start(config, configs, server_children);
- }
+ rfds = save_rfds;
+ pthread_sigmask(SIG_UNBLOCK, &sigs, NULL);
+ ret = select(FD_SETSIZE, &rfds, NULL, NULL, NULL);
+ pthread_sigmask(SIG_BLOCK, &sigs, NULL);
+ int saveerrno = errno;
+
+ if (reloadconfig) {
+ nologin++;
+ auth_unload();
+ AFPConfig *config;
+
+ LOG(log_info, logtype_afpd, "re-reading configuration file");
+ for (config = configs; config; config = config->next)
+ if (config->server_cleanup)
+ config->server_cleanup(config);
+
+ /* configfree close atp socket used for DDP tickle, there's an issue
+ * with atp tid. */
+ configfree(configs, NULL);
+ if (!(configs = configinit(&default_options))) {
+ LOG(log_error, logtype_afpd, "config re-read: no servers configured");
+ afp_exit(EXITERR_CONF);
+ }
+ set_fd(Ipc_fd);
+ nologin = 0;
+ reloadconfig = 0;
+ errno = saveerrno;
+ }
+
+ if (ret < 0) {
+ if (errno == EINTR)
+ continue;
+ LOG(log_error, logtype_afpd, "main: can't wait for input: %s", strerror(errno));
+ break;
+ }
+ if (Ipc_fd >=0 && FD_ISSET(Ipc_fd, &rfds)) {
+ server_ipc_read(server_children);
+ }
+ for (config = configs; config; config = config->next) {
+ if (config->fd < 0)
+ continue;
+ if (FD_ISSET(config->fd, &rfds)) {
+ config->server_start(config, configs, server_children);
+ }
+ }
}
return 0;
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