-/*
+/*
+ * $Id: afp_asp.c,v 1.29 2010-03-09 06:55:12 franklahm Exp $
+ *
* Copyright (c) 1997 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 */
#ifndef NO_DDP
#include <stdlib.h>
#include <string.h>
#include <signal.h>
-#include <syslog.h>
+#include <atalk/logger.h>
+#include <errno.h>
+#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
+#endif /* HAVE_SYS_TIME_H */
+#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
+#endif /* HAVE_SYS_STAT_H */
#include <netatalk/endian.h>
#include <atalk/atp.h>
#include "auth.h"
#include "fork.h"
-extern struct oforks *writtenfork;
+#ifdef FORCE_UIDGID
+#warning UIDGID
+#include "uid.h"
+#endif /* FORCE_UIDGID */
static AFPObj *child;
-static __inline__ void afp_asp_close(AFPObj *obj)
+static void afp_authprint_remove(AFPObj *);
+
+static void afp_asp_close(AFPObj *obj)
{
ASP asp = obj->handle;
-
+
+ if (seteuid( obj->uid ) < 0) {
+ LOG(log_error, logtype_afpd, "can't seteuid back %s", strerror(errno));
+ exit(EXITERR_SYS);
+ }
+ close_all_vol();
+ if (obj->options.authprintdir) afp_authprint_remove(obj);
+
if (obj->logout)
- (*obj->logout)();
+ (*obj->logout)();
+ LOG(log_info, logtype_afpd, "%.2fKB read, %.2fKB written",
+ asp->read_count / 1024.0, asp->write_count / 1024.0);
asp_close( asp );
- syslog(LOG_INFO, "%.2fKB read, %.2fKB written",
- asp->read_count / 1024.0, asp->write_count / 1024.0);
}
+/* removes the authprint trailing when appropriate */
+static void afp_authprint_remove(AFPObj *obj)
+{
+ ASP asp = obj->handle;
+ char addr_filename[256];
+ char addr_filename_buff[256];
+ struct stat cap_st;
+
+ sprintf(addr_filename, "%s/net%d.%dnode%d", obj->options.authprintdir,
+ ntohs( asp->asp_sat.sat_addr.s_net )/256,
+ ntohs( asp->asp_sat.sat_addr.s_net )%256,
+ asp->asp_sat.sat_addr.s_node );
+
+ memset( addr_filename_buff, 0, 256 );
+
+ if(lstat(addr_filename, &cap_st) == 0) {
+ if( S_ISREG(cap_st.st_mode) ) {
+ int len;
+ int capfd = open( addr_filename, O_RDONLY );
+ if ((len = read( capfd, addr_filename_buff, 256 )) > 0) {
+ int file_pid;
+ char *p_filepid;
+ close(capfd);
+ addr_filename_buff[len] = 0;
+ if ( (p_filepid = strrchr(addr_filename_buff, ':')) != NULL) {
+ *p_filepid = '\0';
+ p_filepid++;
+ file_pid = atoi(p_filepid);
+ if (file_pid == (int)getpid()) {
+ if(unlink(addr_filename) == 0) {
+ LOG(log_info, logtype_afpd, "removed %s", addr_filename);
+ } else {
+ LOG(log_info, logtype_afpd, "error removing %s: %s",
+ addr_filename, strerror(errno));
+ }
+ } else {
+ LOG(log_info, logtype_afpd, "%s belongs to another pid %d",
+ addr_filename, file_pid );
+ }
+ } else { /* no pid info */
+ if (unlink(addr_filename) == 0) {
+ LOG(log_info, logtype_afpd, "removed %s", addr_filename );
+ } else {
+ LOG(log_info, logtype_afpd, "error removing %s: %s",
+ addr_filename, strerror(errno));
+ }
+ }
+ } else {
+ LOG(log_info, logtype_afpd, "couldn't read data from %s", addr_filename );
+ }
+ } else {
+ LOG(log_info, logtype_afpd, "%s is not a regular file", addr_filename );
+ }
+ } else {
+ LOG(log_info, logtype_afpd, "error stat'ing %s: %s",
+ addr_filename, strerror(errno));
+ }
+}
+
+/* ------------------------
+ * SIGTERM
+*/
static void afp_asp_die(const int sig)
{
ASP asp = child->handle;
asp_attention(asp, AFPATTN_SHUTDOWN);
if ( asp_shutdown( asp ) < 0 ) {
- syslog( LOG_ERR, "afp_die: asp_shutdown: %m" );
+ LOG(log_error, logtype_afpd, "afp_die: asp_shutdown: %s", strerror(errno) );
}
afp_asp_close(child);
if (sig == SIGTERM || sig == SIGALRM)
- exit( 0 );
+ exit( 0 );
else
- exit(sig);
+ exit(sig);
}
-static void afp_asp_timedown()
+/* -----------------------------
+ * SIGUSR1
+ */
+static void afp_asp_timedown(int sig _U_)
{
struct sigaction sv;
struct itimerval it;
/* shutdown and don't reconnect. server going down in 5 minutes. */
asp_attention(child->handle, AFPATTN_SHUTDOWN | AFPATTN_NORECONNECT |
- AFPATTN_TIME(5));
+ 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_asp_die(1);
+ if ( setitimer( ITIMER_REAL, &it, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "afp_timedown: setitimer: %s", strerror(errno) );
+ afp_asp_die(EXITERR_SYS);
}
memset(&sv, 0, sizeof(sv));
sv.sa_handler = afp_asp_die;
sigemptyset( &sv.sa_mask );
+ sigaddset(&sv.sa_mask, SIGHUP);
+ sigaddset(&sv.sa_mask, SIGTERM);
+ sv.sa_flags = SA_RESTART;
+ if ( sigaction( SIGALRM, &sv, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "afp_timedown: sigaction: %s", strerror(errno) );
+ afp_asp_die(EXITERR_SYS);
+ }
+
+ /* ignore myself */
+ sv.sa_handler = SIG_IGN;
+ sigemptyset( &sv.sa_mask );
sv.sa_flags = SA_RESTART;
- if ( sigaction( SIGALRM, &sv, 0 ) < 0 ) {
- syslog( LOG_ERR, "afp_timedown: sigaction: %m" );
- afp_asp_die(1);
+ if ( sigaction( SIGUSR1, &sv, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "afp_timedown: sigaction SIGUSR1: %s", strerror(errno) );
+ afp_asp_die(EXITERR_SYS);
}
}
+/* ---------------------------------
+ * SIGHUP reload configuration file
+*/
+extern volatile int reload_request;
+
+static void afp_asp_reload(int sig _U_)
+{
+ reload_request = 1;
+}
+
+/* ---------------------- */
+#ifdef SERVERTEXT
+static void afp_asp_getmesg (int sig _U_)
+{
+ readmessage(child);
+ asp_attention(child->handle, AFPATTN_MESG | AFPATTN_TIME(5));
+}
+#endif /* SERVERTEXT */
+
+/* ---------------------- */
void afp_over_asp(AFPObj *obj)
{
ASP asp;
struct sigaction action;
- int func, ccnt = 0, reply = 0;
+ int func, reply = 0;
+#ifdef DEBUG1
+ int ccnt = 0;
+#endif
+ AFPobj = obj;
obj->exit = afp_asp_die;
obj->reply = (int (*)()) asp_cmdreply;
obj->attention = (int (*)(void *, AFPUserBytes)) asp_attention;
child = obj;
asp = (ASP) obj->handle;
- /* install signal handlers */
+ /* install signal handlers
+ * With ASP tickle handler is done in the parent process
+ */
memset(&action, 0, sizeof(action));
- action.sa_handler = afp_asp_timedown;
+
+ /* install SIGHUP */
+ action.sa_handler = afp_asp_reload;
sigemptyset( &action.sa_mask );
+ sigaddset(&action.sa_mask, SIGTERM);
+ sigaddset(&action.sa_mask, SIGUSR1);
+#ifdef SERVERTEXT
+ sigaddset(&action.sa_mask, SIGUSR2);
+#endif
action.sa_flags = SA_RESTART;
- if ( sigaction( SIGHUP, &action, 0 ) < 0 ) {
- syslog( LOG_ERR, "afp_over_asp: sigaction: %m" );
- afp_asp_die(1);
+ if ( sigaction( SIGHUP, &action, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "afp_over_asp: sigaction: %s", strerror(errno) );
+ afp_asp_die(EXITERR_SYS);
}
+ /* install SIGTERM */
action.sa_handler = afp_asp_die;
sigemptyset( &action.sa_mask );
+ sigaddset(&action.sa_mask, SIGHUP);
+ sigaddset(&action.sa_mask, SIGUSR1);
+#ifdef SERVERTEXT
+ sigaddset(&action.sa_mask, SIGUSR2);
+#endif
action.sa_flags = SA_RESTART;
- if ( sigaction( SIGTERM, &action, 0 ) < 0 ) {
- syslog( LOG_ERR, "afp_over_asp: sigaction: %m" );
- afp_asp_die(1);
+ if ( sigaction( SIGTERM, &action, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "afp_over_asp: sigaction: %s", strerror(errno) );
+ afp_asp_die(EXITERR_SYS);
}
- syslog( LOG_INFO, "session from %u.%u:%u on %u.%u:%u",
- ntohs( asp->asp_sat.sat_addr.s_net ),
- asp->asp_sat.sat_addr.s_node, asp->asp_sat.sat_port,
- ntohs( atp_sockaddr( asp->asp_atp )->sat_addr.s_net ),
- atp_sockaddr( asp->asp_atp )->sat_addr.s_node,
- atp_sockaddr( asp->asp_atp )->sat_port );
+#ifdef SERVERTEXT
+ /* Added for server message support */
+ action.sa_handler = afp_asp_getmesg;
+ sigemptyset( &action.sa_mask );
+ sigaddset(&action.sa_mask, SIGTERM);
+ sigaddset(&action.sa_mask, SIGUSR1);
+ sigaddset(&action.sa_mask, SIGHUP);
+ action.sa_flags = SA_RESTART;
+ if ( sigaction( SIGUSR2, &action, NULL) < 0 ) {
+ LOG(log_error, logtype_afpd, "afp_over_asp: sigaction: %s", strerror(errno) );
+ afp_asp_die(EXITERR_SYS);
+ }
+#endif /* SERVERTEXT */
- while ((reply = asp_getrequest(asp))) {
- switch (reply) {
- case ASPFUNC_CLOSE :
- if (obj->options.authprintdir) {
- char addr_filename[256];
- struct stat cap_st;
-
- sprintf(addr_filename, "%s/net%d.%dnode%d", obj->options.authprintdir,
- ntohs( asp->asp_sat.sat_addr.s_net )/256,
- ntohs( asp->asp_sat.sat_addr.s_net )%256,
- asp->asp_sat.sat_addr.s_node );
-
- if(stat(addr_filename, &cap_st) == 0) {
- if(unlink(addr_filename) == 0) {
- syslog(LOG_INFO, "removed %s", addr_filename);
- } else {
- syslog(LOG_INFO, "error removing %s: %m", addr_filename);
- }
- } else {
- syslog(LOG_INFO, "error stat'ing %s: %m", addr_filename);
- }
- }
+ /* SIGUSR1 - set down in 5 minutes */
+ action.sa_handler = afp_asp_timedown;
+ sigemptyset( &action.sa_mask );
+ sigaddset(&action.sa_mask, SIGHUP);
+ sigaddset(&action.sa_mask, SIGTERM);
+#ifdef SERVERTEXT
+ sigaddset(&action.sa_mask, SIGUSR2);
+#endif
+ action.sa_flags = SA_RESTART;
+ if ( sigaction( SIGUSR1, &action, NULL ) < 0 ) {
+ LOG(log_error, logtype_afpd, "afp_over_asp: sigaction: %s", strerror(errno) );
+ afp_asp_die(EXITERR_SYS);
+ }
- afp_asp_close(obj);
- syslog( LOG_INFO, "done" );
+ LOG(log_info, logtype_afpd, "session from %u.%u:%u on %u.%u:%u",
+ ntohs( asp->asp_sat.sat_addr.s_net ),
+ asp->asp_sat.sat_addr.s_node, asp->asp_sat.sat_port,
+ ntohs( atp_sockaddr( asp->asp_atp )->sat_addr.s_net ),
+ atp_sockaddr( asp->asp_atp )->sat_addr.s_node,
+ atp_sockaddr( asp->asp_atp )->sat_port );
- if ( obj->options.flags & OPTION_DEBUG ) {
- printf( "done\n" );
- }
- return;
- break;
+ while ((reply = asp_getrequest(asp))) {
+ if (reload_request) {
+ reload_request = 0;
+ load_volumes(child);
+ }
+ switch (reply) {
+ case ASPFUNC_CLOSE :
+ afp_asp_close(obj);
+ LOG(log_info, logtype_afpd, "done" );
- case ASPFUNC_CMD :
-#ifdef AFS
- if ( writtenfork ) {
- if ( flushfork( writtenfork ) < 0 ) {
- syslog( LOG_ERR, "main flushfork: %m" );
- }
- writtenfork = NULL;
- }
-#endif AFS
- func = (u_char) asp->commands[0];
- if ( obj->options.flags & OPTION_DEBUG ) {
- printf( "command: %d\n", func );
- bprint( asp->commands, asp->cmdlen );
- }
- if ( afp_switch[ func ] != NULL ) {
- /*
- * The function called from afp_switch is expected to
- * read its parameters out of buf, put its
- * results in replybuf (updating rbuflen), and
- * return an error code.
- */
- asp->datalen = ASP_DATASIZ;
- reply = (*afp_switch[ func ])(obj,
- asp->commands, asp->cmdlen,
- asp->data, &asp->datalen);
- } else {
- syslog( LOG_ERR, "bad function %X", func );
- asp->datalen = 0;
- reply = AFPERR_NOOP;
- }
- if ( obj->options.flags & OPTION_DEBUG ) {
- printf( "reply: %d, %d\n", reply, ccnt++ );
- bprint( asp->data, asp->datalen );
- }
+#ifdef DEBUG1
+ if ( obj->options.flags & OPTION_DEBUG ) {
+ printf( "done\n" );
+ }
+#endif
+ return;
+ break;
- if ( asp_cmdreply( asp, reply ) < 0 ) {
- syslog( LOG_ERR, "asp_cmdreply: %m" );
- afp_asp_die(1);
- }
- break;
+ case ASPFUNC_CMD :
+#ifdef AFS
+ if ( writtenfork ) {
+ if ( flushfork( writtenfork ) < 0 ) {
+ LOG(log_error, logtype_afpd, "main flushfork: %s",
+ strerror(errno));
+ }
+ writtenfork = NULL;
+ }
+#endif /* AFS */
+ func = (u_char) asp->commands[0];
+#ifdef DEBUG1
+ if ( obj->options.flags & OPTION_DEBUG ) {
+ printf("command: %d (%s)\n", func, AfpNum2name(func));
+ bprint( asp->commands, asp->cmdlen );
+ }
+#endif
+ if ( afp_switch[ func ] != NULL ) {
+ /*
+ * The function called from afp_switch is expected to
+ * read its parameters out of buf, put its
+ * results in replybuf (updating rbuflen), and
+ * return an error code.
+ */
+ asp->datalen = ASP_DATASIZ;
+ reply = (*afp_switch[ func ])(obj,
+ asp->commands, asp->cmdlen,
+ asp->data, &asp->datalen);
+#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, "bad function %X", func );
+ asp->datalen = 0;
+ reply = AFPERR_NOOP;
+ }
+#ifdef DEBUG1
+ if ( obj->options.flags & OPTION_DEBUG ) {
+ printf( "reply: %d, %d\n", reply, ccnt++ );
+ bprint( asp->data, asp->datalen );
+ }
+#endif
+ if ( asp_cmdreply( asp, reply ) < 0 ) {
+ LOG(log_error, logtype_afpd, "asp_cmdreply: %s", strerror(errno) );
+ afp_asp_die(EXITERR_CLNT);
+ }
+ break;
- case ASPFUNC_WRITE :
- func = (u_char) asp->commands[0];
- if ( obj->options.flags & OPTION_DEBUG ) {
- printf( "(write) command: %d\n", func );
- bprint( asp->commands, asp->cmdlen );
- }
- if ( afp_switch[ func ] != NULL ) {
- asp->datalen = ASP_DATASIZ;
- reply = (*afp_switch[ func ])(obj,
- asp->commands, asp->cmdlen,
- asp->data, &asp->datalen);
- } else {
- syslog( LOG_ERR, "(write) bad function %X", func );
- asp->datalen = 0;
- reply = AFPERR_NOOP;
- }
- if ( obj->options.flags & OPTION_DEBUG ) {
- printf( "(write) reply code: %d, %d\n", reply, ccnt++ );
- bprint( asp->data, asp->datalen );
- }
- if ( asp_wrtreply( asp, reply ) < 0 ) {
- syslog( LOG_ERR, "asp_wrtreply: %m" );
- afp_asp_die(1);
- }
- break;
- default:
- /*
- * Bad asp packet. Probably should have asp filter them,
- * since they are typically things like out-of-order packet.
- */
- syslog( LOG_INFO, "main: asp_getrequest: %d", reply );
- break;
- }
-
- if ( obj->options.flags & OPTION_DEBUG ) {
+ case ASPFUNC_WRITE :
+ func = (u_char) asp->commands[0];
+#ifdef DEBUG1
+ if ( obj->options.flags & OPTION_DEBUG ) {
+ printf( "(write) command: %d\n", func );
+ bprint( asp->commands, asp->cmdlen );
+ }
+#endif
+ if ( afp_switch[ func ] != NULL ) {
+ asp->datalen = ASP_DATASIZ;
+ reply = (*afp_switch[ func ])(obj,
+ asp->commands, asp->cmdlen,
+ asp->data, &asp->datalen);
+#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", func );
+ asp->datalen = 0;
+ reply = AFPERR_NOOP;
+ }
+#ifdef DEBUG1
+ if ( obj->options.flags & OPTION_DEBUG ) {
+ printf( "(write) reply code: %d, %d\n", reply, ccnt++ );
+ bprint( asp->data, asp->datalen );
+ }
+#endif
+ if ( asp_wrtreply( asp, reply ) < 0 ) {
+ LOG(log_error, logtype_afpd, "asp_wrtreply: %s", strerror(errno) );
+ afp_asp_die(EXITERR_CLNT);
+ }
+ break;
+ default:
+ /*
+ * Bad asp packet. Probably should have asp filter them,
+ * since they are typically things like out-of-order packet.
+ */
+ LOG(log_info, logtype_afpd, "main: asp_getrequest: %d", reply );
+ break;
+ }
+#ifdef DEBUG1
+ 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 );
+ }
+#endif
}
}
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