]> arthur.barton.de Git - netatalk.git/blobdiff - etc/afpd/main.c
AFP statistics via dbus IPC
[netatalk.git] / etc / afpd / main.c
index 8729fc12466134ab0875576df3dd4bf42b3c191a..2265047958dc35f5b56512f272b129d0984652fd 100644 (file)
 #include <atalk/server_ipc.h>
 #include <atalk/errchk.h>
 #include <atalk/globals.h>
+#include <atalk/netatalk_conf.h>
 
 #include "afp_config.h"
 #include "status.h"
 #include "fork.h"
 #include "uam_auth.h"
 #include "afp_zeroconf.h"
+#include "afpstats.h"
 
 #define AFP_LISTENERS 32
 #define FDSET_SAFETY  5
@@ -44,7 +46,7 @@
 unsigned char nologin = 0;
 
 static AFPObj obj;
-static server_child *server_children;
+static server_child_t *server_children;
 static sig_atomic_t reloadconfig = 0;
 static sig_atomic_t gotsigchld = 0;
 
@@ -53,16 +55,12 @@ static struct pollfd *fdset;
 static struct polldata *polldata;
 static int fdset_size;          /* current allocated size */
 static int fdset_used;          /* number of used elements */
-static int disasociated_ipc_fd; /* disasociated sessions uses this fd for IPC */
 
-static afp_child_t *dsi_start(AFPObj *obj, DSI *dsi, server_child *server_children);
+static afp_child_t *dsi_start(AFPObj *obj, DSI *dsi, server_child_t *server_children);
 
-/* This is registered with atexit() */
-static void afp_exit(void)
+static void afp_exit(int ret)
 {
-    if (parent_or_child == 0)
-        /* Only do this in the parent */
-        server_unlock(_PATH_AFPDLOCK);
+    exit(ret);
 }
 
 
@@ -83,16 +81,6 @@ static void fd_set_listening_sockets(const AFPObj *config)
                      LISTEN_FD,
                      dsi);
     }
-
-    if (config->options.flags & OPTION_KEEPSESSIONS)
-        fdset_add_fd(config->options.connections + AFP_LISTENERS + FDSET_SAFETY,
-                     &fdset,
-                     &polldata,
-                     &fdset_used,
-                     &fdset_size,
-                     disasociated_ipc_fd,
-                     DISASOCIATED_IPC_FD,
-                     NULL);
 }
  
 static void fd_reset_listening_sockets(const AFPObj *config)
@@ -102,9 +90,6 @@ static void fd_reset_listening_sockets(const AFPObj *config)
     for (dsi = config->dsi; dsi; dsi = dsi->next) {
         fdset_del_fd(&fdset, &polldata, &fdset_used, &fdset_size, dsi->serversock);
     }
-
-    if (config->options.flags & OPTION_KEEPSESSIONS)
-        fdset_del_fd(&fdset, &polldata, &fdset_used, &fdset_size, disasociated_ipc_fd);
 }
 
 /* ------------------ */
@@ -114,23 +99,9 @@ static void afp_goaway(int sig)
 
     case SIGTERM:
     case SIGQUIT:
-        switch (sig) {
-        case SIGTERM:
-            LOG(log_note, logtype_afpd, "AFP Server shutting down on SIGTERM");
-            break;
-        case SIGQUIT:
-            if (obj.options.flags & OPTION_KEEPSESSIONS) {
-                LOG(log_note, logtype_afpd, "AFP Server shutting down on SIGQUIT, NOT disconnecting clients");
-            } else {
-                LOG(log_note, logtype_afpd, "AFP Server shutting down on SIGQUIT");
-                sig = SIGTERM;
-            }
-            break;
-        }
+        LOG(log_note, logtype_afpd, "AFP Server shutting down");
         if (server_children)
-            server_child_kill(server_children, CHILD_DSIFORK, sig);
-
-        server_unlock(_PATH_AFPDLOCK);
+            server_child_kill(server_children, SIGTERM);
         _exit(0);
         break;
 
@@ -140,7 +111,7 @@ static void afp_goaway(int sig)
         LOG(log_info, logtype_afpd, "disallowing logins");        
 
         if (server_children)
-            server_child_kill(server_children, CHILD_DSIFORK, sig);
+            server_child_kill(server_children, sig);
         break;
 
     case SIGHUP :
@@ -170,11 +141,9 @@ static void child_handler(void)
 #endif /* ! WAIT_ANY */
 
     while ((pid = waitpid(WAIT_ANY, &status, WNOHANG)) > 0) {
-        for (i = 0; i < server_children->nforks; i++) {
-            if ((fd = server_child_remove(server_children, i, pid)) != -1) {
-                fdset_del_fd(&fdset, &polldata, &fdset_used, &fdset_size, fd);        
-                break;
-            }
+        if ((fd = server_child_remove(server_children, pid)) != -1) {
+            fdset_del_fd(&fdset, &polldata, &fdset_used, &fdset_size, fd);        
+            break;
         }
 
         if (WIFEXITED(status)) {
@@ -213,31 +182,21 @@ static int setlimits(void)
 
 int main(int ac, char **av)
 {
-    fd_set              rfds;
-    void                *ipc;
     struct sigaction   sv;
     sigset_t            sigs;
     int                 ret;
 
     /* Parse argv args and initialize default options */
-    afp_options_parse_cmdline(ac, av);
-    obj.argc = ac;
-    obj.argv = av;
-    if (afp_config_parse(&obj) != 0)
-        exit(EXITERR_CONF);
-
-    if (check_lockfile("afpd", _PATH_AFPDLOCK) != 0)
-        exit(EXITERR_SYS);
-
-    if (!(obj.options.flags & OPTION_DEBUG) && (daemonize(0, 0) != 0))
-        exit(EXITERR_SYS);
+    afp_options_parse_cmdline(&obj, ac, av);
 
-    if (create_lockfile("afpd", _PATH_AFPDLOCK) != 0)
+    if (!(obj.cmdlineflags & OPTION_DEBUG) && (daemonize(0, 0) != 0))
         exit(EXITERR_SYS);
 
     /* Log SIGBUS/SIGSEGV SBT */
     fault_setup(NULL);
-    atexit(afp_exit);
+
+    if (afp_config_parse(&obj, "afpd") != 0)
+        afp_exit(EXITERR_CONF);
 
     /* Save the user's current umask */
     obj.options.save_mask = umask(obj.options.umask);
@@ -245,10 +204,13 @@ int main(int ac, char **av)
     /* 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(obj.options.connections, CHILD_NFORKS))) {
+    if (!(server_children = server_child_alloc(obj.options.connections))) {
         LOG(log_error, logtype_afpd, "main: server_child alloc: %s", strerror(errno) );
-        exit(EXITERR_SYS);
+        afp_exit(EXITERR_SYS);
     }
+    
+    sigemptyset(&sigs);
+    pthread_sigmask(SIG_SETMASK, &sigs, NULL);
 
     memset(&sv, 0, sizeof(sv));    
     /* linux at least up to 2.4.22 send a SIGXFZ for vfat fs,
@@ -258,9 +220,16 @@ int main(int ac, char **av)
     sigemptyset( &sv.sa_mask );
     if (sigaction(SIGXFSZ, &sv, NULL ) < 0 ) {
         LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
-        exit(EXITERR_SYS);
+        afp_exit(EXITERR_SYS);
     }
 #endif
+
+    sv.sa_handler = SIG_IGN;
+    sigemptyset( &sv.sa_mask );
+    if (sigaction(SIGPIPE, &sv, NULL ) < 0 ) {
+        LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
+        afp_exit(EXITERR_SYS);
+    }
     
     sv.sa_handler = afp_goaway; /* handler for all sigs */
 
@@ -273,7 +242,7 @@ int main(int ac, char **av)
     sv.sa_flags = SA_RESTART;
     if ( sigaction( SIGCHLD, &sv, NULL ) < 0 ) {
         LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
-        exit(EXITERR_SYS);
+        afp_exit(EXITERR_SYS);
     }
 
     sigemptyset( &sv.sa_mask );
@@ -285,7 +254,7 @@ int main(int ac, char **av)
     sv.sa_flags = SA_RESTART;
     if ( sigaction( SIGUSR1, &sv, NULL ) < 0 ) {
         LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
-        exit(EXITERR_SYS);
+        afp_exit(EXITERR_SYS);
     }
 
     sigemptyset( &sv.sa_mask );
@@ -297,7 +266,7 @@ int main(int ac, char **av)
     sv.sa_flags = SA_RESTART;
     if ( sigaction( SIGHUP, &sv, NULL ) < 0 ) {
         LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
-        exit(EXITERR_SYS);
+        afp_exit(EXITERR_SYS);
     }
 
     sigemptyset( &sv.sa_mask );
@@ -309,7 +278,7 @@ int main(int ac, char **av)
     sv.sa_flags = SA_RESTART;
     if ( sigaction( SIGTERM, &sv, NULL ) < 0 ) {
         LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
-        exit(EXITERR_SYS);
+        afp_exit(EXITERR_SYS);
     }
 
     sigemptyset( &sv.sa_mask );
@@ -321,10 +290,10 @@ int main(int ac, char **av)
     sv.sa_flags = SA_RESTART;
     if (sigaction(SIGQUIT, &sv, NULL ) < 0 ) {
         LOG(log_error, logtype_afpd, "main: sigaction: %s", strerror(errno) );
-        exit(EXITERR_SYS);
+        afp_exit(EXITERR_SYS);
     }
 
-    /* afpd.conf: not in config file: lockfile, connections, configfile
+    /* afp.conf:  not in config file: lockfile, configfile
      *            preference: command-line provides defaults.
      *                        config file over-writes defaults.
      *
@@ -345,7 +314,7 @@ int main(int ac, char **av)
     pthread_sigmask(SIG_BLOCK, &sigs, NULL);
     if (configinit(&obj) != 0) {
         LOG(log_error, logtype_afpd, "main: no servers configured");
-        exit(EXITERR_CONF);
+        afp_exit(EXITERR_CONF);
     }
     pthread_sigmask(SIG_UNBLOCK, &sigs, NULL);
 
@@ -353,19 +322,18 @@ int main(int ac, char **av)
     cnid_init();
     
     /* watch atp, dsi sockets and ipc parent/child file descriptor. */
-
-    if (obj.options.flags & OPTION_KEEPSESSIONS) {
-        LOG(log_note, logtype_afpd, "Activating continous service");
-        disasociated_ipc_fd = ipc_server_uds(_PATH_AFP_IPC);
-    }
-
     fd_set_listening_sockets(&obj);
 
     /* set limits */
     (void)setlimits();
 
+#ifdef HAVE_DBUS_GLIB
+    /* Run dbus AFP statics thread */
+    (void)afpstats_init(server_children);
+#endif
+
     afp_child_t *child;
-    int fd[2];  /* we only use one, but server_child_add expects [2] */
+    int recon_ipc_fd;
     pid_t pid;
     int saveerrno;
 
@@ -390,15 +358,20 @@ int main(int ac, char **av)
 
         if (reloadconfig) {
             nologin++;
-            auth_unload();
+
             fd_reset_listening_sockets(&obj);
 
             LOG(log_info, logtype_afpd, "re-reading configuration file");
 
             configfree(&obj, NULL);
+            afp_config_free(&obj);
+
+            if (afp_config_parse(&obj, "afpd") != 0)
+                afp_exit(EXITERR_CONF);
+
             if (configinit(&obj) != 0) {
                 LOG(log_error, logtype_afpd, "config re-read: no servers configured");
-                exit(EXITERR_CONF);
+                afp_exit(EXITERR_CONF);
             }
 
             fd_set_listening_sockets(&obj);
@@ -420,18 +393,18 @@ int main(int ac, char **av)
         }
 
         for (int i = 0; i < fdset_used; i++) {
-            if (fdset[i].revents & (POLLIN | POLLERR | POLLHUP)) {
+            if (fdset[i].revents & (POLLIN | POLLERR | POLLHUP | POLLNVAL)) {
                 switch (polldata[i].fdtype) {
 
                 case LISTEN_FD:
-                    if (child = dsi_start(&obj, (DSI *)polldata[i].data, server_children)) {
+                    if ((child = dsi_start(&obj, (DSI *)polldata[i].data, server_children))) {
                         /* Add IPC fd to select fd set */
                         fdset_add_fd(obj.options.connections + AFP_LISTENERS + FDSET_SAFETY,
                                      &fdset,
                                      &polldata,
                                      &fdset_used,
                                      &fdset_size,
-                                     child->ipc_fds[0],
+                                     child->afpch_ipc_fd,
                                      IPC_FD,
                                      child);
                     }
@@ -439,45 +412,13 @@ int main(int ac, char **av)
 
                 case IPC_FD:
                     child = (afp_child_t *)polldata[i].data;
-                    LOG(log_debug, logtype_afpd, "main: IPC request from child[%u]", child->pid);
-
-                    if (ipc_server_read(server_children, child->ipc_fds[0]) != 0) {
-                        fdset_del_fd(&fdset, &polldata, &fdset_used, &fdset_size, child->ipc_fds[0]);
-                        close(child->ipc_fds[0]);
-                        child->ipc_fds[0] = -1;
-                        if ((obj.options.flags & OPTION_KEEPSESSIONS) && child->disasociated) {
-                            LOG(log_note, logtype_afpd, "main: removing reattached child[%u]", child->pid);
-                            server_child_remove(server_children, CHILD_DSIFORK, child->pid);
-                        }
-                    }
-                    break;
+                    LOG(log_debug, logtype_afpd, "main: IPC request from child[%u]", child->afpch_pid);
 
-                case DISASOCIATED_IPC_FD:
-                    LOG(log_debug, logtype_afpd, "main: IPC reconnect request");
-                    if ((fd[0] = accept(disasociated_ipc_fd, NULL, NULL)) == -1) {
-                        LOG(log_error, logtype_afpd, "main: accept: %s", strerror(errno));
-                        break;
-                    }
-                    if (readt(fd[0], &pid, sizeof(pid_t), 0, 1) != sizeof(pid_t)) {
-                        LOG(log_error, logtype_afpd, "main: readt: %s", strerror(errno));
-                        close(fd[0]);
-                        break;
-                    }
-                    LOG(log_note, logtype_afpd, "main: IPC reconnect from pid [%u]", pid);
-                    if ((child = server_child_add(server_children, CHILD_DSIFORK, pid, fd)) == NULL) {
-                        LOG(log_error, logtype_afpd, "main: server_child_add");
-                        close(fd[0]);
-                        break;
+                    if (ipc_server_read(server_children, child->afpch_ipc_fd) != 0) {
+                        fdset_del_fd(&fdset, &polldata, &fdset_used, &fdset_size, child->afpch_ipc_fd);
+                        close(child->afpch_ipc_fd);
+                        child->afpch_ipc_fd = -1;
                     }
-                    child->disasociated = 1;
-                    fdset_add_fd(obj.options.connections + AFP_LISTENERS + FDSET_SAFETY,
-                                 &fdset,
-                                 &polldata,
-                                 &fdset_used,
-                                 &fdset_size,
-                                 fd[0],
-                                 IPC_FD,
-                                 child);
                     break;
 
                 default:
@@ -491,23 +432,18 @@ int main(int ac, char **av)
     return 0;
 }
 
-static afp_child_t *dsi_start(AFPObj *obj, DSI *dsi, server_child *server_children)
+static afp_child_t *dsi_start(AFPObj *obj, DSI *dsi, server_child_t *server_children)
 {
     afp_child_t *child = NULL;
 
-    if (!(child = dsi_getsession(dsi,
-                                 server_children,
-                                 obj->options.tickleval))) {
+    if (dsi_getsession(dsi, server_children, obj->options.tickleval, &child) != 0) {
         LOG(log_error, logtype_afpd, "dsi_start: session error: %s", strerror(errno));
         return NULL;
     }
 
     /* we've forked. */
-    if (parent_or_child == 1) {
+    if (child == NULL) {
         configfree(obj, dsi);
-        obj->ipc_fd = child->ipc_fds[1];
-        close(child->ipc_fds[0]); /* Close parent IPC fd */
-        free(child);
         afp_over_dsi(obj); /* start a session */
         exit (0);
     }