-/*
+/*
+ * $Id: afp_dsi.c,v 1.13 2001-12-19 01:21:31 jmarcus Exp $
+ *
* Copyright (c) 1999 Adrian Sun (asun@zoology.washington.edu)
* 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 <signal.h>
#include <string.h>
+#include <errno.h>
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
+#endif /* HAVE_UNISTD_H */
#include <sys/socket.h>
#include <sys/time.h>
+#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
+#endif /* HAVE_SYS_STAT_H */
#include <netinet/in.h>
#include <arpa/inet.h>
#include <syslog.h>
#define CHILD_RUNNING (1 << 1)
static struct {
- AFPObj *obj;
- unsigned char tickle, flags;
+ AFPObj *obj;
+ unsigned char flags;
+ int tickle;
} child;
DSI *dsi = obj->handle;
if (obj->logout)
- (*obj->logout)();
-
+ (*obj->logout)();
+
dsi_close(dsi);
/* UAM had syslog control; afpd needs to reassert itself */
openlog( "afpd", LOG_NDELAY|LOG_PID, LOG_DAEMON);
syslog(LOG_INFO, "%.2fKB read, %.2fKB written",
- dsi->read_count/1024.0, dsi->write_count/1024.0);
+ dsi->read_count/1024.0, dsi->write_count/1024.0);
}
/* a little bit of code duplication. */
dsi_attention(child.obj->handle, AFPATTN_SHUTDOWN);
afp_dsi_close(child.obj);
if (sig) /* if no signal, assume dieing because logins are disabled &
- don't log it (maintenance mode)*/
- syslog (LOG_INFO, "Connection terminated");
+ don't log it (maintenance mode)*/
+ syslog (LOG_INFO, "Connection terminated");
if (sig == SIGTERM || sig == SIGALRM) {
- exit( 0 );
+ exit( 0 );
}
else {
- exit(sig);
+ exit(sig);
}
}
/* shutdown and don't reconnect. server going down in 5 minutes. */
setmessage("The server is going down for maintenance.");
dsi_attention(child.obj->handle, AFPATTN_SHUTDOWN | AFPATTN_NORECONNECT |
- AFPATTN_MESG | AFPATTN_TIME(5));
+ AFPATTN_MESG | AFPATTN_TIME(5));
it.it_interval.tv_sec = 0;
it.it_interval.tv_usec = 0;
it.it_value.tv_sec = 300;
it.it_value.tv_usec = 0;
if ( setitimer( ITIMER_REAL, &it, 0 ) < 0 ) {
- syslog( LOG_ERR, "afp_timedown: setitimer: %m" );
- afp_dsi_die(1);
+ syslog( LOG_ERR, "afp_timedown: setitimer: %s", strerror(errno) );
+ afp_dsi_die(1);
}
memset(&sv, 0, sizeof(sv));
sigaddset(&sv.sa_mask, SIGTERM);
sv.sa_flags = SA_RESTART;
if ( sigaction( SIGALRM, &sv, 0 ) < 0 ) {
- syslog( LOG_ERR, "afp_timedown: sigaction: %m" );
- afp_dsi_die(1);
+ syslog( LOG_ERR, "afp_timedown: sigaction: %s", strerror(errno) );
+ afp_dsi_die(1);
}
}
#ifdef SERVERTEXT
static void afp_dsi_getmesg (int sig)
{
- readmessage();
- dsi_attention(child.obj->handle, AFPATTN_MESG | AFPATTN_TIME(5));
+ readmessage();
+ dsi_attention(child.obj->handle, AFPATTN_MESG | AFPATTN_TIME(5));
}
-#endif
+#endif /* SERVERTEXT */
static void alarm_handler()
{
- /* if we're in the midst of processing something,
- don't die. we'll allow 3 missed tickles before we die (2 minutes) */
- if ((child.flags & CHILD_RUNNING) || (child.tickle++ < 4)) {
- dsi_tickle(child.obj->handle);
- } else { /* didn't receive a tickle. close connection */
- syslog(LOG_ERR, "afp_alarm: child timed out");
- afp_dsi_die(1);
- }
+ /* if we're in the midst of processing something,
+ don't die. */
+ if ((child.flags & CHILD_RUNNING) || (child.tickle++ < child.obj->options.timeout)) {
+ syslog(LOG_INFO, "afp_dsi: alarm_handler: tickling client...");
+ dsi_tickle(child.obj->handle);
+ } else { /* didn't receive a tickle. close connection */
+ syslog(LOG_ERR, "afp_alarm: child timed out");
+ afp_dsi_die(1);
+ }
}
/* afp over dsi. this never returns. */
void afp_over_dsi(AFPObj *obj)
{
- DSI *dsi = (DSI *) obj->handle;
- u_int32_t err, cmd;
- u_int8_t function;
- struct sigaction action;
-
- obj->exit = afp_dsi_die;
- obj->reply = (int (*)()) dsi_cmdreply;
- obj->attention = (int (*)(void *, AFPUserBytes)) dsi_attention;
-
- child.obj = obj;
- child.tickle = child.flags = 0;
-
- /* install SIGTERM and SIGHUP */
- memset(&action, 0, sizeof(action));
- action.sa_handler = afp_dsi_timedown;
- sigemptyset( &action.sa_mask );
- sigaddset(&action.sa_mask, SIGALRM);
- sigaddset(&action.sa_mask, SIGTERM);
- action.sa_flags = SA_RESTART;
- if ( sigaction( SIGHUP, &action, 0 ) < 0 ) {
- syslog( LOG_ERR, "afp_over_dsi: sigaction: %m" );
- afp_dsi_die(1);
- }
-
- action.sa_handler = afp_dsi_die;
- sigemptyset( &action.sa_mask );
- sigaddset(&action.sa_mask, SIGALRM);
- sigaddset(&action.sa_mask, SIGHUP);
- action.sa_flags = SA_RESTART;
- if ( sigaction( SIGTERM, &action, 0 ) < 0 ) {
- syslog( LOG_ERR, "afp_over_dsi: sigaction: %m" );
- afp_dsi_die(1);
- }
+ DSI *dsi = (DSI *) obj->handle;
+ u_int32_t err, cmd;
+ u_int8_t function;
+ struct sigaction action;
+
+ obj->exit = afp_dsi_die;
+ obj->reply = (int (*)()) dsi_cmdreply;
+ obj->attention = (int (*)(void *, AFPUserBytes)) dsi_attention;
+
+ child.obj = obj;
+ child.tickle = child.flags = 0;
+
+ /* install SIGTERM and SIGHUP */
+ memset(&action, 0, sizeof(action));
+ action.sa_handler = afp_dsi_timedown;
+ sigemptyset( &action.sa_mask );
+ sigaddset(&action.sa_mask, SIGALRM);
+ sigaddset(&action.sa_mask, SIGTERM);
+ action.sa_flags = SA_RESTART;
+ if ( sigaction( SIGHUP, &action, 0 ) < 0 ) {
+ syslog( LOG_ERR, "afp_over_dsi: sigaction: %s", strerror(errno) );
+ afp_dsi_die(1);
+ }
+
+ action.sa_handler = afp_dsi_die;
+ sigemptyset( &action.sa_mask );
+ sigaddset(&action.sa_mask, SIGALRM);
+ sigaddset(&action.sa_mask, SIGHUP);
+ action.sa_flags = SA_RESTART;
+ if ( sigaction( SIGTERM, &action, 0 ) < 0 ) {
+ syslog( LOG_ERR, "afp_over_dsi: sigaction: %s", strerror(errno) );
+ afp_dsi_die(1);
+ }
#ifdef SERVERTEXT
- /* Added for server message support */
- action.sa_handler = afp_dsi_getmesg;
- sigemptyset( &action.sa_mask );
- sigaddset(&action.sa_mask, SIGUSR2);
- action.sa_flags = SA_RESTART;
- if ( sigaction( SIGUSR2, &action, 0) < 0 ) {
- syslog( LOG_ERR, "afp_over_dsi: sigaction: %m" );
- afp_dsi_die(1);
- }
-#endif
-
- /* tickle handler */
- action.sa_handler = alarm_handler;
- sigemptyset(&action.sa_mask);
- sigaddset(&action.sa_mask, SIGHUP);
- sigaddset(&action.sa_mask, SIGTERM);
- action.sa_flags = SA_RESTART;
- if ((sigaction(SIGALRM, &action, NULL) < 0) ||
- (setitimer(ITIMER_REAL, &dsi->timer, NULL) < 0)) {
- afp_dsi_die(1);
- }
-
- /* get stuck here until the end */
- while ((cmd = dsi_receive(dsi))) {
- child.tickle = 0;
-
- if (cmd == DSIFUNC_TICKLE) {
- /* so we don't get killed on the client side. */
- if (child.flags & CHILD_DIE)
- dsi_tickle(dsi);
- continue;
- } else if (!(child.flags & CHILD_DIE)) /* reset tickle timer */
- setitimer(ITIMER_REAL, &dsi->timer, NULL);
-
- switch(cmd) {
- case DSIFUNC_CLOSE:
- afp_dsi_close(obj);
- syslog(LOG_INFO, "done");
- if (obj->options.flags & OPTION_DEBUG )
- printf("done\n");
- return;
- break;
-
- case DSIFUNC_CMD:
-#ifdef AFS
- if ( writtenfork ) {
- if ( flushfork( writtenfork ) < 0 ) {
- syslog( LOG_ERR, "main flushfork: %m" );
- }
- writtenfork = NULL;
- }
-#endif AFS
-
- function = (u_char) dsi->commands[0];
- if (obj->options.flags & OPTION_DEBUG ) {
- printf("command: %d\n", function);
- bprint(dsi->commands, dsi->cmdlen);
- }
-
- /* send off an afp command. in a couple cases, we take advantage
- * of the fact that we're a stream-based protocol. */
- if (afp_switch[function]) {
- dsi->datalen = DSI_DATASIZ;
- child.flags |= CHILD_RUNNING;
- err = (*afp_switch[function])(obj,
- dsi->commands, dsi->cmdlen,
- dsi->data, &dsi->datalen);
- child.flags &= ~CHILD_RUNNING;
- } else {
- syslog(LOG_ERR, "bad function %X", function);
- dsi->datalen = 0;
- err = AFPERR_NOOP;
- }
-
- /* single shot toggle that gets set by dsi_readinit. */
- if (dsi->noreply) {
- dsi->noreply = 0;
- break;
- }
-
- if (obj->options.flags & OPTION_DEBUG ) {
- printf( "reply: %d, %d\n", err, dsi->clientID);
- bprint(dsi->data, dsi->datalen);
- }
-
- if (!dsi_cmdreply(dsi, err)) {
- syslog(LOG_ERR, "dsi_cmdreply(%d): %m", dsi->socket);
- afp_dsi_die(1);
- }
- break;
-
- case DSIFUNC_WRITE: /* FPWrite and FPAddIcon */
- function = (u_char) dsi->commands[0];
- if ( obj->options.flags & OPTION_DEBUG ) {
- printf("(write) command: %d, %d\n", function, dsi->cmdlen);
- bprint(dsi->commands, dsi->cmdlen);
- }
-
- if ( afp_switch[ function ] != NULL ) {
- dsi->datalen = DSI_DATASIZ;
- child.flags |= CHILD_RUNNING;
- err = (*afp_switch[function])(obj, dsi->commands, dsi->cmdlen,
- dsi->data, &dsi->datalen);
- child.flags &= ~CHILD_RUNNING;
- } else {
- syslog( LOG_ERR, "(write) bad function %x", function);
- dsi->datalen = 0;
- err = AFPERR_NOOP;
- }
-
- if (obj->options.flags & OPTION_DEBUG ) {
- printf( "(write) reply code: %d, %d\n", err, dsi->clientID);
- bprint(dsi->data, dsi->datalen);
- }
-
- if (!dsi_wrtreply(dsi, err)) {
- syslog( LOG_ERR, "dsi_wrtreply: %m" );
- afp_dsi_die(1);
- }
- break;
-
- case DSIFUNC_ATTN: /* attention replies */
- continue;
- break;
-
- /* error. this usually implies a mismatch of some kind
- * between server and client. if things are correct,
- * we need to flush the rest of the packet if necessary. */
- default:
- syslog(LOG_INFO,"afp_dsi: spurious command %d", cmd);
- dsi_writeinit(dsi, dsi->data, DSI_DATASIZ);
- dsi_writeflush(dsi);
- break;
+ /* Added for server message support */
+ action.sa_handler = afp_dsi_getmesg;
+ sigemptyset( &action.sa_mask );
+ sigaddset(&action.sa_mask, SIGUSR2);
+ action.sa_flags = SA_RESTART;
+ if ( sigaction( SIGUSR2, &action, 0) < 0 ) {
+ syslog( LOG_ERR, "afp_over_dsi: sigaction: %s", strerror(errno) );
+ afp_dsi_die(1);
}
-
- if ( obj->options.flags & OPTION_DEBUG ) {
+#endif /* SERVERTEXT */
+
+ /* tickle handler */
+ action.sa_handler = alarm_handler;
+ sigemptyset(&action.sa_mask);
+ sigaddset(&action.sa_mask, SIGHUP);
+ sigaddset(&action.sa_mask, SIGTERM);
+ action.sa_flags = SA_RESTART;
+ if ((sigaction(SIGALRM, &action, NULL) < 0) ||
+ (setitimer(ITIMER_REAL, &dsi->timer, NULL) < 0)) {
+ afp_dsi_die(1);
+ }
+
+ /* get stuck here until the end */
+ while ((cmd = dsi_receive(dsi))) {
+ child.tickle = 0;
+
+ if (cmd == DSIFUNC_TICKLE) {
+ /* so we don't get killed on the client side. */
+ if (child.flags & CHILD_DIE)
+ dsi_tickle(dsi);
+ continue;
+ } else if (!(child.flags & CHILD_DIE)) /* reset tickle timer */
+ setitimer(ITIMER_REAL, &dsi->timer, NULL);
+
+ switch(cmd) {
+ case DSIFUNC_CLOSE:
+ afp_dsi_close(obj);
+ syslog(LOG_INFO, "done");
+ if (obj->options.flags & OPTION_DEBUG )
+ printf("done\n");
+ return;
+ break;
+
+ case DSIFUNC_CMD:
+#ifdef AFS
+ if ( writtenfork ) {
+ if ( flushfork( writtenfork ) < 0 ) {
+ syslog( LOG_ERR, "main flushfork: %s", strerror(errno) );
+ }
+ writtenfork = NULL;
+ }
+#endif /* AFS */
+
+ function = (u_char) dsi->commands[0];
+ if (obj->options.flags & OPTION_DEBUG ) {
+ printf("command: %d\n", function);
+ bprint((char *) dsi->commands, dsi->cmdlen);
+ }
+
+ /* send off an afp command. in a couple cases, we take advantage
+ * of the fact that we're a stream-based protocol. */
+ if (afp_switch[function]) {
+ dsi->datalen = DSI_DATASIZ;
+ child.flags |= CHILD_RUNNING;
+ err = (*afp_switch[function])(obj,
+ dsi->commands, dsi->cmdlen,
+ dsi->data, &dsi->datalen);
+ child.flags &= ~CHILD_RUNNING;
+ } else {
+ syslog(LOG_ERR, "bad function %X", function);
+ dsi->datalen = 0;
+ err = AFPERR_NOOP;
+ }
+
+ /* single shot toggle that gets set by dsi_readinit. */
+ if (dsi->noreply) {
+ dsi->noreply = 0;
+ break;
+ }
+
+ if (obj->options.flags & OPTION_DEBUG ) {
+ printf( "reply: %d, %d\n", err, dsi->clientID);
+ bprint((char *) dsi->data, dsi->datalen);
+ }
+
+ if (!dsi_cmdreply(dsi, err)) {
+ syslog(LOG_ERR, "dsi_cmdreply(%d): %s", dsi->socket, strerror(errno) );
+ afp_dsi_die(1);
+ }
+ break;
+
+ case DSIFUNC_WRITE: /* FPWrite and FPAddIcon */
+ function = (u_char) dsi->commands[0];
+ if ( obj->options.flags & OPTION_DEBUG ) {
+ printf("(write) command: %d, %d\n", function, dsi->cmdlen);
+ bprint((char *) dsi->commands, dsi->cmdlen);
+ }
+
+ if ( afp_switch[ function ] != NULL ) {
+ dsi->datalen = DSI_DATASIZ;
+ child.flags |= CHILD_RUNNING;
+ err = (*afp_switch[function])(obj, dsi->commands, dsi->cmdlen,
+ dsi->data, &dsi->datalen);
+ child.flags &= ~CHILD_RUNNING;
+ } else {
+ syslog( LOG_ERR, "(write) bad function %x", function);
+ dsi->datalen = 0;
+ err = AFPERR_NOOP;
+ }
+
+ if (obj->options.flags & OPTION_DEBUG ) {
+ printf( "(write) reply code: %d, %d\n", err, dsi->clientID);
+ bprint((char *) dsi->data, dsi->datalen);
+ }
+
+ if (!dsi_wrtreply(dsi, err)) {
+ syslog( LOG_ERR, "dsi_wrtreply: %s", strerror(errno) );
+ afp_dsi_die(1);
+ }
+ break;
+
+ case DSIFUNC_ATTN: /* attention replies */
+ continue;
+ break;
+
+ /* error. this usually implies a mismatch of some kind
+ * between server and client. if things are correct,
+ * we need to flush the rest of the packet if necessary. */
+ default:
+ syslog(LOG_INFO,"afp_dsi: spurious command %d", cmd);
+ dsi_writeinit(dsi, dsi->data, DSI_DATASIZ);
+ dsi_writeflush(dsi);
+ break;
+ }
+
+ if ( obj->options.flags & OPTION_DEBUG ) {
#ifdef notdef
- pdesc( stdout );
-#endif notdef
- of_pforkdesc( stdout );
- fflush( stdout );
+ pdesc( stdout );
+#endif /* notdef */
+ of_pforkdesc( stdout );
+ fflush( stdout );
+ }
}
- }
- /* error */
- afp_dsi_die(1);
+ /* error */
+ afp_dsi_die(1);
}
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