X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=etc%2Fafpd%2Fafp_asp.c;h=dddb3da5030032b4d68cc3265ee0b306da58da66;hb=edefad2f0703ed2f6a21025d615600ed18c83d18;hp=20db4b255447d5703b1885f7eb854b044c45fb21;hpb=f291e1ee2d32891f4f451e946b5894a038ed8c48;p=netatalk.git diff --git a/etc/afpd/afp_asp.c b/etc/afpd/afp_asp.c index 20db4b25..dddb3da5 100644 --- a/etc/afpd/afp_asp.c +++ b/etc/afpd/afp_asp.c @@ -1,5 +1,5 @@ /* - * $Id: afp_asp.c,v 1.16 2002-03-24 01:23:40 sibaz Exp $ + * $Id: afp_asp.c,v 1.27 2009-10-25 07:18:11 didg Exp $ * * Copyright (c) 1997 Adrian Sun (asun@zoology.washington.edu) * Copyright (c) 1990,1993 Regents of The University of Michigan. @@ -38,16 +38,24 @@ #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_authprint_remove(AFPObj *); +static void afp_authprint_remove(AFPObj *); -static __inline__ void afp_asp_close(AFPObj *obj) +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) @@ -59,7 +67,7 @@ static __inline__ void afp_asp_close(AFPObj *obj) } /* removes the authprint trailing when appropriate */ -static __inline__ void afp_authprint_remove(AFPObj *obj) +static void afp_authprint_remove(AFPObj *obj) { ASP asp = obj->handle; char addr_filename[256]; @@ -117,6 +125,9 @@ static __inline__ void afp_authprint_remove(AFPObj *obj) } } +/* ------------------------ + * SIGTERM +*/ static void afp_asp_die(const int sig) { ASP asp = child->handle; @@ -133,7 +144,10 @@ static void afp_asp_die(const int sig) exit(sig); } -static void afp_asp_timedown() +/* ----------------------------- + * SIGUSR1 + */ +static void afp_asp_timedown(int sig _U_) { struct sigaction sv; struct itimerval it; @@ -146,26 +160,60 @@ static void afp_asp_timedown() 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 ) { + if ( setitimer( ITIMER_REAL, &it, NULL ) < 0 ) { LOG(log_error, logtype_afpd, "afp_timedown: setitimer: %s", strerror(errno) ); - afp_asp_die(1); + 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, 0 ) < 0 ) { + if ( sigaction( SIGALRM, &sv, NULL ) < 0 ) { LOG(log_error, logtype_afpd, "afp_timedown: sigaction: %s", strerror(errno) ); - afp_asp_die(1); + afp_asp_die(EXITERR_SYS); + } + + /* ignore myself */ + sv.sa_handler = SIG_IGN; + sigemptyset( &sv.sa_mask ); + sv.sa_flags = SA_RESTART; + 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 obj->exit = afp_asp_die; obj->reply = (int (*)()) asp_cmdreply; @@ -173,22 +221,65 @@ void afp_over_asp(AFPObj *obj) 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 ) { + if ( sigaction( SIGHUP, &action, NULL ) < 0 ) { LOG(log_error, logtype_afpd, "afp_over_asp: sigaction: %s", strerror(errno) ); - afp_asp_die(1); + 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, NULL ) < 0 ) { + LOG(log_error, logtype_afpd, "afp_over_asp: sigaction: %s", strerror(errno) ); + afp_asp_die(EXITERR_SYS); + } + +#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 */ + + /* 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( SIGTERM, &action, 0 ) < 0 ) { + if ( sigaction( SIGUSR1, &action, NULL ) < 0 ) { LOG(log_error, logtype_afpd, "afp_over_asp: sigaction: %s", strerror(errno) ); - afp_asp_die(1); + afp_asp_die(EXITERR_SYS); } LOG(log_info, logtype_afpd, "session from %u.%u:%u on %u.%u:%u", @@ -199,14 +290,20 @@ void afp_over_asp(AFPObj *obj) atp_sockaddr( asp->asp_atp )->sat_port ); 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" ); +#ifdef DEBUG1 if ( obj->options.flags & OPTION_DEBUG ) { printf( "done\n" ); } +#endif return; break; @@ -221,10 +318,12 @@ void afp_over_asp(AFPObj *obj) } #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 @@ -236,45 +335,60 @@ void afp_over_asp(AFPObj *obj) 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(1); + afp_asp_die(EXITERR_CLNT); } break; 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(1); + afp_asp_die(EXITERR_CLNT); } break; default: @@ -285,7 +399,7 @@ void afp_over_asp(AFPObj *obj) LOG(log_info, logtype_afpd, "main: asp_getrequest: %d", reply ); break; } - +#ifdef DEBUG1 if ( obj->options.flags & OPTION_DEBUG ) { #ifdef notdef pdesc( stdout ); @@ -293,6 +407,7 @@ void afp_over_asp(AFPObj *obj) of_pforkdesc( stdout ); fflush( stdout ); } +#endif } }