]> arthur.barton.de Git - netatalk.git/blobdiff - etc/afpd/afp_dsi.c
Merge remote-tracking branch 'origin/branch-netatalk-3-0' into develop
[netatalk.git] / etc / afpd / afp_dsi.c
index e8bbc0174fad5551ed4a1a8843e31e78bab15b02..b64d49140f402fc1ddb0f1f0205263563e9808d1 100644 (file)
 #include <sys/stat.h>
 #endif /* HAVE_SYS_STAT_H */
 #include <netinet/in.h>
+#include <netinet/tcp.h>
 #include <arpa/inet.h>
-#include <atalk/logger.h>
 #include <setjmp.h>
+#include <time.h>
 
+#include <atalk/logger.h>
 #include <atalk/dsi.h>
 #include <atalk/compat.h>
 #include <atalk/util.h>
 #include <atalk/uuid.h>
 #include <atalk/paths.h>
 #include <atalk/server_ipc.h>
+#include <atalk/fce_api.h>
+#include <atalk/globals.h>
+#include <atalk/netatalk_conf.h>
+#include <atalk/spotlight.h>
 
-#include "globals.h"
 #include "switch.h"
 #include "auth.h"
 #include "fork.h"
 #include "dircache.h"
 
-#ifdef FORCE_UIDGID
-#warning UIDGID
-#include "uid.h"
-#endif /* FORCE_UIDGID */
+#ifndef SOL_TCP
+#define SOL_TCP IPPROTO_TCP
+#endif
 
 /* 
  * We generally pass this from afp_over_dsi to all afp_* funcs, so it should already be
@@ -72,8 +76,9 @@ static rc_elem_t replaycache[REPLAYCACHE_SIZE];
 static sigjmp_buf recon_jmp;
 static void afp_dsi_close(AFPObj *obj)
 {
-    DSI *dsi = obj->handle;
-
+    DSI *dsi = obj->dsi;
+    sigset_t sigs;
+    
     close(obj->ipc_fd);
     obj->ipc_fd = -1;
 
@@ -89,9 +94,13 @@ static void afp_dsi_close(AFPObj *obj)
         }
     }
 
-    close_all_vol();
-    if (obj->logout)
+    close_all_vol(obj);
+    if (obj->logout) {
+        /* Block sigs, PAM/systemd/whoever might send us a SIG??? in (*obj->logout)() -> pam_close_session() */
+        sigfillset(&sigs);
+        pthread_sigmask(SIG_BLOCK, &sigs, NULL);
         (*obj->logout)();
+    }
 
     LOG(log_note, logtype_afpd, "AFP statistics: %.2f KB read, %.2f KB written",
         dsi->read_count/1024.0, dsi->write_count/1024.0);
@@ -106,7 +115,7 @@ static void afp_dsi_close(AFPObj *obj)
  */
 static void afp_dsi_die(int sig)
 {
-    DSI *dsi = (DSI *)AFPobj->handle;
+    DSI *dsi = (DSI *)AFPobj->dsi;
 
     if (dsi->flags & DSI_RECONINPROG) {
         /* Primary reconnect succeeded, got SIGTERM from afpd parent */
@@ -119,7 +128,7 @@ static void afp_dsi_die(int sig)
         exit(0);
     }
 
-    dsi_attention(AFPobj->handle, AFPATTN_SHUTDOWN);
+    dsi_attention(AFPobj->dsi, AFPATTN_SHUTDOWN);
     afp_dsi_close(AFPobj);
    if (sig) /* if no signal, assume dieing because logins are disabled &
                 don't log it (maintenance mode)*/
@@ -137,7 +146,7 @@ static void afp_dsi_transfer_session(int sig _U_)
 {
     uint16_t dsiID;
     int socket;
-    DSI *dsi = (DSI *)AFPobj->handle;
+    DSI *dsi = (DSI *)AFPobj->dsi;
 
     LOG(log_debug, logtype_afpd, "afp_dsi_transfer_session: got SIGURG, trying to receive session");
 
@@ -188,13 +197,13 @@ static void afp_dsi_timedown(int sig _U_)
 {
     struct sigaction   sv;
     struct itimerval   it;
-    DSI                 *dsi = (DSI *)AFPobj->handle;
+    DSI                 *dsi = (DSI *)AFPobj->dsi;
     dsi->flags |= DSI_DIE;
     /* shutdown and don't reconnect. server going down in 5 minutes. */
     setmessage("The server is going down for maintenance.");
-    if (dsi_attention(AFPobj->handle, AFPATTN_SHUTDOWN | AFPATTN_NORECONNECT |
+    if (dsi_attention(AFPobj->dsi, AFPATTN_SHUTDOWN | AFPATTN_NORECONNECT |
                   AFPATTN_MESG | AFPATTN_TIME(5)) < 0) {
-        DSI *dsi = (DSI *)AFPobj->handle;
+        DSI *dsi = (DSI *)AFPobj->dsi;
         dsi->down_request = 1;
     }                  
 
@@ -251,17 +260,17 @@ static void afp_dsi_debug(int sig _U_)
 /* ---------------------- */
 static void afp_dsi_getmesg (int sig _U_)
 {
-    DSI *dsi = (DSI *)AFPobj->handle;
+    DSI *dsi = (DSI *)AFPobj->dsi;
 
     dsi->msg_request = 1;
-    if (dsi_attention(AFPobj->handle, AFPATTN_MESG | AFPATTN_TIME(5)) < 0)
+    if (dsi_attention(AFPobj->dsi, AFPATTN_MESG | AFPATTN_TIME(5)) < 0)
         dsi->msg_request = 2;
 }
 
 static void alarm_handler(int sig _U_)
 {
     int err;
-    DSI *dsi = (DSI *)AFPobj->handle;
+    DSI *dsi = (DSI *)AFPobj->dsi;
 
     /* we have to restart the timer because some libraries may use alarm() */
     setitimer(ITIMER_REAL, &dsi->timer, NULL);
@@ -306,16 +315,17 @@ static void alarm_handler(int sig _U_)
     }
 
     /* if we're in the midst of processing something, don't die. */        
-    if ( !(dsi->flags & DSI_RUNNING) && (dsi->tickle >= AFPobj->options.timeout)) {
+    if (dsi->tickle >= AFPobj->options.timeout) {
         LOG(log_error, logtype_afpd, "afp_alarm: child timed out, entering disconnected state");
         if (dsi_disconnect(dsi) != 0)
             afp_dsi_die(EXITERR_CLNT);
         return;
     }
 
-    if ((err = pollvoltime(AFPobj)) == 0)
+    if ((err = pollvoltime(AFPobj)) == 0) {
         LOG(log_debug, logtype_afpd, "afp_alarm: sending DSI tickle");
-        err = dsi_tickle(AFPobj->handle);
+        err = dsi_tickle(AFPobj->dsi);
+    }
     if (err <= 0) {
         if (geteuid() == 0) {
             LOG(log_note, logtype_afpd, "afp_alarm: unauthenticated user, connection problem");
@@ -339,50 +349,29 @@ static void pending_request(DSI *dsi)
     if (dsi->msg_request) {
         if (dsi->msg_request == 2) {
             /* didn't send it in signal handler */
-            dsi_attention(AFPobj->handle, AFPATTN_MESG | AFPATTN_TIME(5));
+            dsi_attention(AFPobj->dsi, AFPATTN_MESG | AFPATTN_TIME(5));
         }
         dsi->msg_request = 0;
         readmessage(AFPobj);
     }
     if (dsi->down_request) {
         dsi->down_request = 0;
-        dsi_attention(AFPobj->handle, AFPATTN_SHUTDOWN | AFPATTN_NORECONNECT |
+        dsi_attention(AFPobj->dsi, AFPATTN_SHUTDOWN | AFPATTN_NORECONNECT |
                   AFPATTN_MESG | AFPATTN_TIME(5));
     }
 }
 
-/* -------------------------------------------
- afp over dsi. this never returns. 
-*/
-void afp_over_dsi(AFPObj *obj)
+void afp_over_dsi_sighandlers(AFPObj *obj)
 {
-    DSI *dsi = (DSI *) obj->handle;
-    int rc_idx;
-    u_int32_t err, cmd;
-    u_int8_t function;
+    DSI *dsi = (DSI *) obj->dsi;
     struct sigaction action;
-    struct pollfd pollfds[1];
-
-    AFPobj = obj;
-    obj->exit = afp_dsi_die;
-    obj->reply = (int (*)()) dsi_cmdreply;
-    obj->attention = (int (*)(void *, AFPUserBytes)) dsi_attention;
-    dsi->tickle = 0;
-
-    pollfds[0].fd = obj->ipc_fd;
-    pollfds[0].events = POLLOUT;
 
     memset(&action, 0, sizeof(action));
+    sigfillset(&action.sa_mask);
+    action.sa_flags = SA_RESTART;
 
     /* install SIGHUP */
     action.sa_handler = afp_dsi_reload;
-    sigemptyset( &action.sa_mask );
-    sigaddset(&action.sa_mask, SIGALRM);
-    sigaddset(&action.sa_mask, SIGTERM);
-    sigaddset(&action.sa_mask, SIGUSR1);
-    sigaddset(&action.sa_mask, SIGINT);
-    sigaddset(&action.sa_mask, SIGUSR2);
-    action.sa_flags = SA_RESTART;
     if ( sigaction( SIGHUP, &action, NULL ) < 0 ) {
         LOG(log_error, logtype_afpd, "afp_over_dsi: sigaction: %s", strerror(errno) );
         afp_dsi_die(EXITERR_SYS);
@@ -390,13 +379,6 @@ void afp_over_dsi(AFPObj *obj)
 
     /* install SIGURG */
     action.sa_handler = afp_dsi_transfer_session;
-    sigemptyset( &action.sa_mask );
-    sigaddset(&action.sa_mask, SIGALRM);
-    sigaddset(&action.sa_mask, SIGTERM);
-    sigaddset(&action.sa_mask, SIGUSR1);
-    sigaddset(&action.sa_mask, SIGINT);
-    sigaddset(&action.sa_mask, SIGUSR2);
-    action.sa_flags = SA_RESTART;
     if ( sigaction( SIGURG, &action, NULL ) < 0 ) {
         LOG(log_error, logtype_afpd, "afp_over_dsi: sigaction: %s", strerror(errno) );
         afp_dsi_die(EXITERR_SYS);
@@ -404,27 +386,20 @@ void afp_over_dsi(AFPObj *obj)
 
     /* install SIGTERM */
     action.sa_handler = afp_dsi_die;
-    sigemptyset( &action.sa_mask );
-    sigaddset(&action.sa_mask, SIGALRM);
-    sigaddset(&action.sa_mask, SIGHUP);
-    sigaddset(&action.sa_mask, SIGUSR1);
-    sigaddset(&action.sa_mask, SIGINT);
-    sigaddset(&action.sa_mask, SIGUSR2);
-    action.sa_flags = SA_RESTART;
     if ( sigaction( SIGTERM, &action, NULL ) < 0 ) {
         LOG(log_error, logtype_afpd, "afp_over_dsi: sigaction: %s", strerror(errno) );
         afp_dsi_die(EXITERR_SYS);
     }
 
-    /* Added for server message support */
+    /* install SIGQUIT */
+    action.sa_handler = afp_dsi_die;
+    if ( sigaction(SIGQUIT, &action, NULL ) < 0 ) {
+        LOG(log_error, logtype_afpd, "afp_over_dsi: sigaction: %s", strerror(errno) );
+        afp_dsi_die(EXITERR_SYS);
+    }
+
+    /* SIGUSR2 - server message support */
     action.sa_handler = afp_dsi_getmesg;
-    sigemptyset( &action.sa_mask );
-    sigaddset(&action.sa_mask, SIGALRM);
-    sigaddset(&action.sa_mask, SIGTERM);
-    sigaddset(&action.sa_mask, SIGUSR1);
-    sigaddset(&action.sa_mask, SIGHUP);
-    sigaddset(&action.sa_mask, SIGINT);
-    action.sa_flags = SA_RESTART;
     if ( sigaction( SIGUSR2, &action, NULL) < 0 ) {
         LOG(log_error, logtype_afpd, "afp_over_dsi: sigaction: %s", strerror(errno) );
         afp_dsi_die(EXITERR_SYS);
@@ -432,12 +407,6 @@ void afp_over_dsi(AFPObj *obj)
 
     /*  SIGUSR1 - set down in 5 minutes  */
     action.sa_handler = afp_dsi_timedown;
-    sigemptyset( &action.sa_mask );
-    sigaddset(&action.sa_mask, SIGALRM);
-    sigaddset(&action.sa_mask, SIGHUP);
-    sigaddset(&action.sa_mask, SIGTERM);
-    sigaddset(&action.sa_mask, SIGINT);
-    sigaddset(&action.sa_mask, SIGUSR2);
     action.sa_flags = SA_RESTART;
     if ( sigaction( SIGUSR1, &action, NULL) < 0 ) {
         LOG(log_error, logtype_afpd, "afp_over_dsi: sigaction: %s", strerror(errno) );
@@ -446,28 +415,38 @@ void afp_over_dsi(AFPObj *obj)
 
     /*  SIGINT - enable max_debug LOGging to /tmp/afpd.PID.XXXXXX */
     action.sa_handler = afp_dsi_debug;
-    sigfillset( &action.sa_mask );
-    action.sa_flags = SA_RESTART;
     if ( sigaction( SIGINT, &action, NULL) < 0 ) {
         LOG(log_error, logtype_afpd, "afp_over_dsi: sigaction: %s", strerror(errno) );
         afp_dsi_die(EXITERR_SYS);
     }
 
 #ifndef DEBUGGING
-    /* tickle handler */
+    /* SIGALRM - tickle handler */
     action.sa_handler = alarm_handler;
-    sigemptyset(&action.sa_mask);
-    sigaddset(&action.sa_mask, SIGHUP);
-    sigaddset(&action.sa_mask, SIGTERM);
-    sigaddset(&action.sa_mask, SIGUSR1);
-    sigaddset(&action.sa_mask, SIGINT);
-    sigaddset(&action.sa_mask, SIGUSR2);
-    action.sa_flags = SA_RESTART;
     if ((sigaction(SIGALRM, &action, NULL) < 0) ||
             (setitimer(ITIMER_REAL, &dsi->timer, NULL) < 0)) {
         afp_dsi_die(EXITERR_SYS);
     }
 #endif /* DEBUGGING */
+}
+
+/* -------------------------------------------
+ afp over dsi. this never returns. 
+*/
+void afp_over_dsi(AFPObj *obj)
+{
+    DSI *dsi = (DSI *) obj->dsi;
+    int rc_idx;
+    uint32_t err, cmd;
+    uint8_t function;
+
+    AFPobj = obj;
+    obj->exit = afp_dsi_die;
+    obj->reply = (int (*)()) dsi_cmdreply;
+    obj->attention = (int (*)(void *, AFPUserBytes)) dsi_attention;
+    dsi->tickle = 0;
+
+    afp_over_dsi_sighandlers(obj);
 
     if (dircache_init(obj->options.dircachesize) != 0)
         afp_dsi_die(EXITERR_SYS);
@@ -492,6 +471,16 @@ void afp_over_dsi(AFPObj *obj)
         }
     }
 
+    /* set TCP_NODELAY */
+    int flag = 1;
+    setsockopt(dsi->socket, SOL_TCP, TCP_NODELAY, &flag, sizeof(flag));
+
+    /* Initialize Spotlight */
+    if ((obj->options.flags & OPTION_SPOTLIGHT) && (obj->options.slmod_path))
+        sl_mod_load(obj->options.slmod_path);
+
+    ipc_child_state(obj, DSI_RUNNING);
+
     /* get stuck here until the end */
     while (1) {
         if (sigsetjmp(recon_jmp, 1) != 0)
@@ -499,7 +488,7 @@ void afp_over_dsi(AFPObj *obj)
             continue;
 
         /* Blocking read on the network socket */
-        cmd = dsi_receive(dsi);
+        cmd = dsi_stream_receive(dsi);
 
         if (cmd == 0) {
             /* cmd == 0 is the error condition */
@@ -508,42 +497,38 @@ void afp_over_dsi(AFPObj *obj)
                 dsi->flags &= ~DSI_RECONSOCKET;
                 continue;
             }
-            /* Some error on the client connection, enter disconnected state */
-            if (dsi_disconnect(dsi) != 0)
-                afp_dsi_die(EXITERR_CLNT);
 
             /* the client sometimes logs out (afp_logout) but doesn't close the DSI session */
             if (dsi->flags & DSI_AFP_LOGGED_OUT) {
+                LOG(log_note, logtype_afpd, "afp_over_dsi: client logged out, terminating DSI session");
+                afp_dsi_close(obj);
+                exit(0);
+            }
+
+            if (dsi->flags & DSI_RECONINPROG) {
+                LOG(log_note, logtype_afpd, "afp_over_dsi: failed reconnect");
                 afp_dsi_close(obj);
                 exit(0);
             }
 
-            pause(); /* gets interrupted by SIGALARM or SIGURG tickle */
+            /* Some error on the client connection, enter disconnected state */
+            if (dsi_disconnect(dsi) != 0)
+                afp_dsi_die(EXITERR_CLNT);
+
+            ipc_child_state(obj, DSI_DISCONNECTED);
+
+            while (dsi->flags & DSI_DISCONNECTED)
+                pause(); /* gets interrupted by SIGALARM or SIGURG tickle */
+            ipc_child_state(obj, DSI_RUNNING);
             continue; /* continue receiving until disconnect timer expires
                        * or a primary reconnect succeeds  */
         }
 
-        static int saved_ipcfd = -1;
-        if (saved_ipcfd == -1)
-            saved_ipcfd = obj->ipc_fd;
-        if (poll(pollfds, 1, 0) == 1) {
-            if (pollfds[0].revents & (POLLHUP | POLLERR)) {
-                if (saved_ipcfd == obj->ipc_fd && getppid() == 1) {
-                    close(obj->ipc_fd);
-                    sleep(30);  /* give it enough time to start */
-                    if ((obj->ipc_fd = ipc_client_uds(_PATH_AFP_IPC)) == -1) {
-                        LOG(log_error, logtype_afpd, "afp_over_dsi: cant reconnect to master");
-                        afp_dsi_die(EXITERR_SYS);
-                    }
-                }
-            }
-        }
-
-
         if (!(dsi->flags & DSI_EXTSLEEP) && (dsi->flags & DSI_SLEEPING)) {
             LOG(log_debug, logtype_afpd, "afp_over_dsi: got data, ending normal sleep");
             dsi->flags &= ~DSI_SLEEPING;
             dsi->tickle = 0;
+            ipc_child_state(obj, DSI_RUNNING);
         }
 
         if (reload_request) {
@@ -561,15 +546,15 @@ void afp_over_dsi(AFPObj *obj)
 
             if (debugging) {
                 if (obj->options.logconfig)
-                    setuplog(obj->options.logconfig);
+                    setuplog(obj->options.logconfig, obj->options.logfile);
                 else
-                    setuplog("default log_note");
+                    setuplog("default:note", NULL);
                 debugging = 0;
             } else {
                 char logstr[50];
                 debugging = 1;
-                sprintf(logstr, "default log_maxdebug /tmp/afpd.%u.XXXXXX", getpid());
-                setuplog(logstr);
+                sprintf(logstr, "/tmp/afpd.%u.XXXXXX", getpid());
+                setuplog("default:maxdebug", logstr);
             }
         }
 
@@ -607,7 +592,7 @@ void afp_over_dsi(AFPObj *obj)
 
             /* AFP replay cache */
             rc_idx = dsi->clientID % REPLAYCACHE_SIZE;
-            LOG(log_debug, logtype_afpd, "DSI request ID: %u", dsi->clientID);
+            LOG(log_debug, logtype_dsi, "DSI request ID: %u", dsi->clientID);
 
             if (replaycache[rc_idx].DSIreqID == dsi->clientID
                 && replaycache[rc_idx].AFPcommand == function) {
@@ -624,20 +609,17 @@ void afp_over_dsi(AFPObj *obj)
 
                     LOG(log_debug, logtype_afpd, "<== Start AFP command: %s", AfpNum2name(function));
 
+                    AFP_AFPFUNC_START(function, (char *)AfpNum2name(function));
                     err = (*afp_switch[function])(obj,
-                                                  (char *)&dsi->commands, dsi->cmdlen,
+                                                  (char *)dsi->commands, dsi->cmdlen,
                                                   (char *)&dsi->data, &dsi->datalen);
 
+                    AFP_AFPFUNC_DONE(function, (char *)AfpNum2name(function));
                     LOG(log_debug, logtype_afpd, "==> Finished AFP command: %s -> %s",
                         AfpNum2name(function), AfpErr2name(err));
 
                     dir_free_invalid_q();
 
-#ifdef FORCE_UIDGID
-                    /* bring everything back to old euid, egid */
-                    if (obj->force_uid)
-                        restore_uidgid ( &obj->uidgid );
-#endif /* FORCE_UIDGID */
                     dsi->flags &= ~DSI_RUNNING;
 
                     /* Add result to the AFP replay cache */
@@ -655,9 +637,7 @@ void afp_over_dsi(AFPObj *obj)
             if (dsi->flags & DSI_NOREPLY) {
                 dsi->flags &= ~DSI_NOREPLY;
                 break;
-            }
-
-            if (!dsi_cmdreply(dsi, err)) {
+            } else if (!dsi_cmdreply(dsi, err)) {
                 LOG(log_error, logtype_afpd, "dsi_cmdreply(%d): %s", dsi->socket, strerror(errno) );
                 if (dsi_disconnect(dsi) != 0)
                     afp_dsi_die(EXITERR_CLNT);
@@ -672,19 +652,18 @@ void afp_over_dsi(AFPObj *obj)
 
                 LOG(log_debug, logtype_afpd, "<== Start AFP command: %s", AfpNum2name(function));
 
+                AFP_AFPFUNC_START(function, (char *)AfpNum2name(function));
+
                 err = (*afp_switch[function])(obj,
-                                              (char *)&dsi->commands, dsi->cmdlen,
+                                              (char *)dsi->commands, dsi->cmdlen,
                                               (char *)&dsi->data, &dsi->datalen);
 
+                AFP_AFPFUNC_DONE(function, (char *)AfpNum2name(function));
+
                 LOG(log_debug, logtype_afpd, "==> Finished AFP command: %s -> %s",
                     AfpNum2name(function), AfpErr2name(err));
 
                 dsi->flags &= ~DSI_RUNNING;
-#ifdef FORCE_UIDGID
-               /* bring everything back to old euid, egid */
-               if (obj->force_uid)
-                   restore_uidgid ( &obj->uidgid );
-#endif /* FORCE_UIDGID */
             } else {
                 LOG(log_error, logtype_afpd, "(write) bad function %x", function);
                 dsi->datalen = 0;
@@ -711,6 +690,8 @@ void afp_over_dsi(AFPObj *obj)
             break;
         }
         pending_request(dsi);
+
+        fce_pending_events(obj);
     }
 
     /* error */