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* $Id: afp_asp.c,v 1.17 2002/08/30 19:32:40 didg Exp $
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* Copyright (c) 1997 Adrian Sun (asun@zoology.washington.edu)
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* Copyright (c) 1990,1993 Regents of The University of Michigan.
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* All Rights Reserved. See COPYRIGHT.
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* modified from main.c. this handles afp over asp.
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#endif /* HAVE_CONFIG_H */
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#include <atalk/logger.h>
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#ifdef HAVE_SYS_TIME_H
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#endif /* HAVE_SYS_TIME_H */
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#ifdef HAVE_SYS_STAT_H
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#endif /* HAVE_SYS_STAT_H */
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#include <netatalk/endian.h>
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#include <atalk/atp.h>
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#include <atalk/asp.h>
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#include <atalk/compat.h>
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#include <atalk/util.h>
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#endif /* FORCE_UIDGID */
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extern struct oforks *writtenfork;
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static __inline__ void afp_authprint_remove(AFPObj *);
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static __inline__ void afp_asp_close(AFPObj *obj)
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ASP asp = obj->handle;
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if (obj->options.authprintdir) afp_authprint_remove(obj);
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LOG(log_info, logtype_afpd, "%.2fKB read, %.2fKB written",
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asp->read_count / 1024.0, asp->write_count / 1024.0);
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/* removes the authprint trailing when appropriate */
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static __inline__ void afp_authprint_remove(AFPObj *obj)
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ASP asp = obj->handle;
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char addr_filename[256];
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char addr_filename_buff[256];
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sprintf(addr_filename, "%s/net%d.%dnode%d", obj->options.authprintdir,
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ntohs( asp->asp_sat.sat_addr.s_net )/256,
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ntohs( asp->asp_sat.sat_addr.s_net )%256,
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asp->asp_sat.sat_addr.s_node );
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memset( addr_filename_buff, 0, 256 );
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if(stat(addr_filename, &cap_st) == 0) {
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if( S_ISREG(cap_st.st_mode) ) {
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int capfd = open( addr_filename, O_RDONLY );
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if ((len = read( capfd, addr_filename_buff, 256 )) > 0) {
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addr_filename_buff[len] = 0;
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if ( (p_filepid = strrchr(addr_filename_buff, ':')) != NULL) {
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file_pid = atoi(p_filepid);
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if (file_pid == (int)getpid()) {
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if(unlink(addr_filename) == 0) {
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LOG(log_info, logtype_afpd, "removed %s", addr_filename);
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LOG(log_info, logtype_afpd, "error removing %s: %s",
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addr_filename, strerror(errno));
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LOG(log_info, logtype_afpd, "%s belongs to another pid %d",
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addr_filename, file_pid );
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} else { /* no pid info */
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if (unlink(addr_filename) == 0) {
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LOG(log_info, logtype_afpd, "removed %s", addr_filename );
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LOG(log_info, logtype_afpd, "error removing %s: %s",
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addr_filename, strerror(errno));
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LOG(log_info, logtype_afpd, "couldn't read data from %s", addr_filename );
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LOG(log_info, logtype_afpd, "%s is not a regular file", addr_filename );
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LOG(log_info, logtype_afpd, "error stat'ing %s: %s",
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addr_filename, strerror(errno));
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static void afp_asp_die(const int sig)
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ASP asp = child->handle;
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asp_attention(asp, AFPATTN_SHUTDOWN);
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if ( asp_shutdown( asp ) < 0 ) {
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LOG(log_error, logtype_afpd, "afp_die: asp_shutdown: %s", strerror(errno) );
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afp_asp_close(child);
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if (sig == SIGTERM || sig == SIGALRM)
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static void afp_asp_timedown()
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/* shutdown and don't reconnect. server going down in 5 minutes. */
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asp_attention(child->handle, AFPATTN_SHUTDOWN | AFPATTN_NORECONNECT |
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it.it_interval.tv_sec = 0;
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it.it_interval.tv_usec = 0;
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it.it_value.tv_sec = 300;
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it.it_value.tv_usec = 0;
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if ( setitimer( ITIMER_REAL, &it, 0 ) < 0 ) {
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LOG(log_error, logtype_afpd, "afp_timedown: setitimer: %s", strerror(errno) );
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memset(&sv, 0, sizeof(sv));
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sv.sa_handler = afp_asp_die;
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sigemptyset( &sv.sa_mask );
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sv.sa_flags = SA_RESTART;
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if ( sigaction( SIGALRM, &sv, 0 ) < 0 ) {
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LOG(log_error, logtype_afpd, "afp_timedown: sigaction: %s", strerror(errno) );
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void afp_over_asp(AFPObj *obj)
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struct sigaction action;
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int func, ccnt = 0, reply = 0;
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obj->exit = afp_asp_die;
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obj->reply = (int (*)()) asp_cmdreply;
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obj->attention = (int (*)(void *, AFPUserBytes)) asp_attention;
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asp = (ASP) obj->handle;
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/* install signal handlers */
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memset(&action, 0, sizeof(action));
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action.sa_handler = afp_asp_timedown;
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sigemptyset( &action.sa_mask );
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action.sa_flags = SA_RESTART;
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if ( sigaction( SIGHUP, &action, 0 ) < 0 ) {
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LOG(log_error, logtype_afpd, "afp_over_asp: sigaction: %s", strerror(errno) );
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action.sa_handler = afp_asp_die;
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sigemptyset( &action.sa_mask );
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action.sa_flags = SA_RESTART;
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if ( sigaction( SIGTERM, &action, 0 ) < 0 ) {
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LOG(log_error, logtype_afpd, "afp_over_asp: sigaction: %s", strerror(errno) );
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LOG(log_info, logtype_afpd, "session from %u.%u:%u on %u.%u:%u",
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ntohs( asp->asp_sat.sat_addr.s_net ),
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asp->asp_sat.sat_addr.s_node, asp->asp_sat.sat_port,
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ntohs( atp_sockaddr( asp->asp_atp )->sat_addr.s_net ),
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atp_sockaddr( asp->asp_atp )->sat_addr.s_node,
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atp_sockaddr( asp->asp_atp )->sat_port );
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while ((reply = asp_getrequest(asp))) {
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LOG(log_info, logtype_afpd, "done" );
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if ( obj->options.flags & OPTION_DEBUG ) {
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if ( flushfork( writtenfork ) < 0 ) {
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LOG(log_error, logtype_afpd, "main flushfork: %s",
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func = (u_char) asp->commands[0];
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if ( obj->options.flags & OPTION_DEBUG ) {
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printf("command: %d (%s)\n", func, AfpNum2name(func));
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bprint( asp->commands, asp->cmdlen );
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if ( afp_switch[ func ] != NULL ) {
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* The function called from afp_switch is expected to
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* read its parameters out of buf, put its
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* results in replybuf (updating rbuflen), and
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* return an error code.
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asp->datalen = ASP_DATASIZ;
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reply = (*afp_switch[ func ])(obj,
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asp->commands, asp->cmdlen,
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asp->data, &asp->datalen);
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/* bring everything back to old euid, egid */
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restore_uidgid ( &obj->uidgid );
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#endif /* FORCE_UIDGID */
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LOG(log_error, logtype_afpd, "bad function %X", func );
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if ( obj->options.flags & OPTION_DEBUG ) {
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printf( "reply: %d, %d\n", reply, ccnt++ );
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bprint( asp->data, asp->datalen );
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if ( asp_cmdreply( asp, reply ) < 0 ) {
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LOG(log_error, logtype_afpd, "asp_cmdreply: %s", strerror(errno) );
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func = (u_char) asp->commands[0];
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if ( obj->options.flags & OPTION_DEBUG ) {
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printf( "(write) command: %d\n", func );
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bprint( asp->commands, asp->cmdlen );
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if ( afp_switch[ func ] != NULL ) {
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asp->datalen = ASP_DATASIZ;
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reply = (*afp_switch[ func ])(obj,
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asp->commands, asp->cmdlen,
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asp->data, &asp->datalen);
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/* bring everything back to old euid, egid */
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restore_uidgid ( &obj->uidgid );
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#endif /* FORCE_UIDGID */
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LOG(log_error, logtype_afpd, "(write) bad function %X", func );
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if ( obj->options.flags & OPTION_DEBUG ) {
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printf( "(write) reply code: %d, %d\n", reply, ccnt++ );
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bprint( asp->data, asp->datalen );
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if ( asp_wrtreply( asp, reply ) < 0 ) {
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LOG(log_error, logtype_afpd, "asp_wrtreply: %s", strerror(errno) );
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* Bad asp packet. Probably should have asp filter them,
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* since they are typically things like out-of-order packet.
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LOG(log_info, logtype_afpd, "main: asp_getrequest: %d", reply );
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if ( obj->options.flags & OPTION_DEBUG ) {
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of_pforkdesc( stdout );