diff options
Diffstat (limited to 'usr.sbin/nfsd/nfsd.c')
-rw-r--r-- | usr.sbin/nfsd/nfsd.c | 823 |
1 files changed, 540 insertions, 283 deletions
diff --git a/usr.sbin/nfsd/nfsd.c b/usr.sbin/nfsd/nfsd.c index 2d923a4..959f0fb 100644 --- a/usr.sbin/nfsd/nfsd.c +++ b/usr.sbin/nfsd/nfsd.c @@ -58,9 +58,6 @@ static const char rcsid[] = #include <netdb.h> #include <arpa/inet.h> -#ifdef ISO -#include <netiso/iso.h> -#endif #include <nfs/rpcv2.h> #include <nfs/nfsproto.h> #include <nfs/nfs.h> @@ -76,6 +73,7 @@ static const char rcsid[] = #include <stdlib.h> #include <strings.h> #include <unistd.h> +#include <netdb.h> /* Global defs */ #ifdef DEBUG @@ -103,15 +101,23 @@ struct timeval ktv; NFSKERBKEYSCHED_T kerb_keysched; #endif -void nonfs __P((int)); -void reapchild __P((int)); -void setbindhost __P((struct sockaddr_in *ia, const char *bindhost)); +#define MAXNFSDCNT 20 +#define DEFNFSDCNT 4 +pid_t children[MAXNFSDCNT]; /* PIDs of children */ +int nfsdcnt; /* number of children */ + +void cleanup(int); +void killchildren(void); +void nonfs (int); +void reapchild (int); +int setbindhost (struct addrinfo **ia, const char *bindhost, struct addrinfo hints); #ifdef OLD_SETPROCTITLE #ifdef __FreeBSD__ -void setproctitle __P((char *)); +void setproctitle (char *); #endif #endif -void usage __P((void)); +void unregistration (void); +void usage (void); /* * Nfs server daemon mostly just a user context for nfssvc() @@ -119,7 +125,7 @@ void usage __P((void)); * 1 - do file descriptor and signal cleanup * 2 - fork the nfsd(s) * 3 - create server socket(s) - * 4 - register socket with portmap + * 4 - register socket with rpcbind * * For connectionless protocols, just pass the socket into the kernel via. * nfssvc(). @@ -127,7 +133,8 @@ void usage __P((void)); * socket from accept, pass the msgsock into the kernel via. nfssvc(). * The arguments are: * -c - support iso cltp clients - * -r - reregister with portmapper + * -r - reregister with rpcbind + * -d - unregister with rpcbind * -t - support tcp nfs clients * -u - support udp nfs clients * followed by "n" which is the number of nfsds' to fork off @@ -138,20 +145,20 @@ main(argc, argv, envp) char *argv[], *envp[]; { struct nfsd_args nfsdargs; - struct sockaddr_in inetaddr, inetpeer; -#ifdef ISO - struct sockaddr_iso isoaddr, isopeer; - char *cp; -#endif + struct addrinfo *ai_udp, *ai_tcp, *ai_udp6, *ai_tcp6, hints; + struct netconfig *nconf_udp, *nconf_tcp, *nconf_udp6, *nconf_tcp6; + struct netbuf nb_udp, nb_tcp, nb_udp6, nb_tcp6; + struct sockaddr_in inetpeer; + struct sockaddr_in6 inet6peer; fd_set ready, sockbits; + fd_set v4bits, v6bits; int ch, cltpflag, connect_type_cnt, i, len, maxsock, msgsock; - int nfsdcnt, nfssvc_flag, on, reregister, sock, tcpflag, tcpsock; - int tp4cnt, tp4flag, tpipcnt, tpipflag, udpflag; - int bindhostc = 0, bindanyflag; + int nfssvc_flag, on = 1, unregister, reregister, sock; + int tcp6sock, ip6flag, tcpflag, tcpsock; + int udpflag, ecode, s; + int bindhostc = 0, bindanyflag, rpcbreg, rpcbregcnt; char **bindhost = NULL; -#ifdef notyet - int tp4sock, tpipsock; -#endif + pid_t pid; #ifdef NFSKERB struct group *grp; struct passwd *pwd; @@ -184,18 +191,11 @@ main(argc, argv, envp) LastArg = envp[-1] + strlen(envp[-1]); #endif -#define MAXNFSDCNT 20 -#define DEFNFSDCNT 4 nfsdcnt = DEFNFSDCNT; - cltpflag = reregister = tcpflag = tp4cnt = tp4flag = tpipcnt = 0; - bindanyflag = tpipflag = udpflag = 0; -#ifdef ISO -#define GETOPT "ach:n:rtu" -#define USAGE "[-acrtu] [-n num_servers] [-h bindip]" -#else -#define GETOPT "ah:n:rtu" -#define USAGE "[-artu] [-n num_servers] [-h bindip]" -#endif + cltpflag = unregister = reregister = tcpflag = 0; + bindanyflag = udpflag = ip6flag = 0; +#define GETOPT "ah:n:rdtu" +#define USAGE "[-ardtu] [-n num_servers] [-h bindip]" while ((ch = getopt(argc, argv, GETOPT)) != -1) switch (ch) { case 'a': @@ -221,25 +221,15 @@ main(argc, argv, envp) case 'r': reregister = 1; break; + case 'd': + unregister = 1; + break; case 't': tcpflag = 1; break; case 'u': udpflag = 1; break; -#ifdef ISO - case 'c': - cltpflag = 1; - break; -#ifdef notyet - case 'i': - tp4cnt = 1; - break; - case 'p': - tpipcnt = 1; - break; -#endif /* notyet */ -#endif /* ISO */ default: case '?': usage(); @@ -263,6 +253,13 @@ main(argc, argv, envp) nfsdcnt = DEFNFSDCNT; } } + ip6flag = 1; + s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); + if (s < 0 && (errno == EPROTONOSUPPORT || + errno == EPFNOSUPPORT || errno == EAFNOSUPPORT)) + ip6flag = 0; + else + close(s); if (bindhostc == 0 || bindanyflag) { bindhostc++; @@ -278,33 +275,126 @@ main(argc, argv, envp) daemon(0, 0); (void)signal(SIGHUP, SIG_IGN); (void)signal(SIGINT, SIG_IGN); - (void)signal(SIGQUIT, SIG_IGN); (void)signal(SIGSYS, nonfs); + (void)signal(SIGUSR1, cleanup); + /* + * nfsd sits in the kernel most of the time. It needs + * to ignore SIGTERM/SIGQUIT in order to stay alive as long + * as possible during a shutdown, otherwise loopback + * mounts will not be able to unmount. + */ (void)signal(SIGTERM, SIG_IGN); + (void)signal(SIGQUIT, SIG_IGN); } (void)signal(SIGCHLD, reapchild); - + if (unregister) { + unregistration(); + exit (0); + } if (reregister) { - if (udpflag && - (!pmap_set(RPCPROG_NFS, 2, IPPROTO_UDP, NFS_PORT) || - !pmap_set(RPCPROG_NFS, 3, IPPROTO_UDP, NFS_PORT))) - err(1, "can't register with portmap for UDP"); - if (tcpflag && - (!pmap_set(RPCPROG_NFS, 2, IPPROTO_TCP, NFS_PORT) || - !pmap_set(RPCPROG_NFS, 3, IPPROTO_TCP, NFS_PORT))) - err(1, "can't register with portmap for TCP"); - exit(0); + if (udpflag) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = IPPROTO_UDP; + ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp); + if (ecode != 0) { + syslog(LOG_ERR, "getaddrinfo udp: %s", + gai_strerror(ecode)); + exit(1); + } + nconf_udp = getnetconfigent("udp"); + if (nconf_udp == NULL) + err(1, "getnetconfigent udp failed"); + nb_udp.buf = ai_udp->ai_addr; + nb_udp.len = nb_udp.maxlen = ai_udp->ai_addrlen; + if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp, &nb_udp)) || + (!rpcb_set(RPCPROG_NFS, 3, nconf_udp, &nb_udp))) + err(1, "rpcb_set udp failed"); + freeaddrinfo(ai_udp); + } + if (udpflag && ip6flag) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = IPPROTO_UDP; + ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp6); + if (ecode != 0) { + syslog(LOG_ERR, "getaddrinfo udp6: %s", + gai_strerror(ecode)); + exit(1); + } + nconf_udp6 = getnetconfigent("udp6"); + if (nconf_udp6 == NULL) + err(1, "getnetconfigent udp6 failed"); + nb_udp6.buf = ai_udp6->ai_addr; + nb_udp6.len = nb_udp6.maxlen = ai_udp6->ai_addrlen; + if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp6, &nb_udp6)) || + (!rpcb_set(RPCPROG_NFS, 3, nconf_udp6, &nb_udp6))) + err(1, "rpcb_set udp6 failed"); + freeaddrinfo(ai_udp6); + } + if (tcpflag) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = IPPROTO_TCP; + ecode = getaddrinfo(NULL, "nfs", &hints, &ai_tcp); + if (ecode != 0) { + syslog(LOG_ERR, "getaddrinfo tcp: %s", + gai_strerror(ecode)); + exit(1); + } + nconf_tcp = getnetconfigent("tcp"); + if (nconf_tcp == NULL) + err(1, "getnetconfigent tcp failed"); + nb_tcp.buf = ai_tcp->ai_addr; + nb_tcp.len = nb_tcp.maxlen = ai_tcp->ai_addrlen; + if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp, &nb_tcp)) || + (!rpcb_set(RPCPROG_NFS, 3, nconf_tcp, &nb_tcp))) + err(1, "rpcb_set tcp failed"); + freeaddrinfo(ai_tcp); + } + if (tcpflag && ip6flag) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = IPPROTO_TCP; + ecode = getaddrinfo(NULL, "nfs", &hints, &ai_tcp6); + if (ecode != 0) { + syslog(LOG_ERR, "getaddrinfo tcp6: %s", + gai_strerror(ecode)); + exit(1); + } + nconf_tcp6 = getnetconfigent("tcp6"); + if (nconf_tcp6 == NULL) + err(1, "getnetconfigent tcp6 failed"); + nb_tcp6.buf = ai_tcp6->ai_addr; + nb_tcp6.len = nb_tcp6.maxlen = ai_tcp6->ai_addrlen; + if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp6, &nb_tcp6)) || + (!rpcb_set(RPCPROG_NFS, 3, nconf_tcp6, &nb_tcp6))) + err(1, "rpcb_set tcp6 failed"); + freeaddrinfo(ai_tcp6); + } + exit (0); } + openlog("nfsd:", LOG_PID, LOG_DAEMON); for (i = 0; i < nfsdcnt; i++) { - switch (fork()) { + switch ((pid = fork())) { case -1: syslog(LOG_ERR, "fork: %m"); + killchildren(); exit (1); case 0: break; default: + children[i] = pid; continue; } @@ -399,182 +489,295 @@ main(argc, argv, envp) exit(0); } - /* If we are serving udp, set up the socket. */ - for (i = 0; udpflag && i < bindhostc; i++) { - if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - syslog(LOG_ERR, "can't create udp socket"); - exit(1); - } - setbindhost(&inetaddr, bindhost[i]); - if (bind(sock, - (struct sockaddr *)&inetaddr, sizeof(inetaddr)) < 0) { - syslog(LOG_ERR, "can't bind udp addr %s: %m", bindhost[i]); - exit(1); - } - if (!pmap_set(RPCPROG_NFS, 2, IPPROTO_UDP, NFS_PORT) || - !pmap_set(RPCPROG_NFS, 3, IPPROTO_UDP, NFS_PORT)) { - syslog(LOG_ERR, "can't register with udp portmap"); - exit(1); + if (atexit(killchildren) == -1) { + syslog(LOG_ERR, "atexit: %s", strerror(errno)); + exit(1); + } + FD_ZERO(&v4bits); + FD_ZERO(&v6bits); + + rpcbregcnt = 0; + /* Set up the socket for udp and rpcb register it. */ + if (udpflag) { + rpcbreg = 0; + for (i = 0; i < bindhostc; i++) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = IPPROTO_UDP; + if (setbindhost(&ai_udp, bindhost[i], hints) == 0) { + rpcbreg = 1; + rpcbregcnt++; + if ((sock = socket(ai_udp->ai_family, + ai_udp->ai_socktype, + ai_udp->ai_protocol)) < 0) { + syslog(LOG_ERR, + "can't create udp socket"); + exit(1); + } + if (bind(sock, ai_udp->ai_addr, + ai_udp->ai_addrlen) < 0) { + syslog(LOG_ERR, + "can't bind udp addr %s: %m", + bindhost[i]); + exit(1); + } + freeaddrinfo(ai_udp); + nfsdargs.sock = sock; + nfsdargs.name = NULL; + nfsdargs.namelen = 0; + if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { + syslog(LOG_ERR, "can't Add UDP socket"); + exit(1); + } + (void)close(sock); + } } - nfsdargs.sock = sock; - nfsdargs.name = NULL; - nfsdargs.namelen = 0; - if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { - syslog(LOG_ERR, "can't Add UDP socket"); - exit(1); + if (rpcbreg == 1) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = IPPROTO_UDP; + ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp); + if (ecode != 0) { + syslog(LOG_ERR, "getaddrinfo udp: %s", + gai_strerror(ecode)); + exit(1); + } + nconf_udp = getnetconfigent("udp"); + if (nconf_udp == NULL) + err(1, "getnetconfigent udp failed"); + nb_udp.buf = ai_udp->ai_addr; + nb_udp.len = nb_udp.maxlen = ai_udp->ai_addrlen; + if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp, &nb_udp)) || + (!rpcb_set(RPCPROG_NFS, 3, nconf_udp, &nb_udp))) + err(1, "rpcb_set udp failed"); + freeaddrinfo(ai_udp); } - (void)close(sock); } -#ifdef ISO - /* If we are serving cltp, set up the socket. */ - if (cltpflag) { - if ((sock = socket(AF_ISO, SOCK_DGRAM, 0)) < 0) { - syslog(LOG_ERR, "can't create cltp socket"); - exit(1); - } - memset(&isoaddr, 0, sizeof(isoaddr)); - isoaddr.siso_family = AF_ISO; - isoaddr.siso_tlen = 2; - cp = TSEL(&isoaddr); - *cp++ = (NFS_PORT >> 8); - *cp = (NFS_PORT & 0xff); - isoaddr.siso_len = sizeof(isoaddr); - if (bind(sock, - (struct sockaddr *)&isoaddr, sizeof(isoaddr)) < 0) { - syslog(LOG_ERR, "can't bind cltp addr"); - exit(1); - } -#ifdef notyet - /* - * XXX - * Someday this should probably use "rpcbind", the son of - * portmap. - */ - if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_UDP, NFS_PORT)) { - syslog(LOG_ERR, "can't register with udp portmap"); - exit(1); + /* Set up the socket for udp6 and rpcb register it. */ + if (udpflag && ip6flag) { + rpcbreg = 0; + for (i = 0; i < bindhostc; i++) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = IPPROTO_UDP; + if (setbindhost(&ai_udp6, bindhost[i], hints) == 0) { + rpcbreg = 1; + rpcbregcnt++; + if ((sock = socket(ai_udp6->ai_family, + ai_udp6->ai_socktype, + ai_udp6->ai_protocol)) < 0) { + syslog(LOG_ERR, + "can't create udp6 socket"); + exit(1); + } + if (setsockopt(sock, IPPROTO_IPV6, + IPV6_BINDV6ONLY, + &on, sizeof on) < 0) { + syslog(LOG_ERR, + "can't set v6-only binding for " + "udp6 socket: %m"); + exit(1); + } + if (bind(sock, ai_udp6->ai_addr, + ai_udp6->ai_addrlen) < 0) { + syslog(LOG_ERR, + "can't bind udp6 addr %s: %m", + bindhost[i]); + exit(1); + } + freeaddrinfo(ai_udp6); + nfsdargs.sock = sock; + nfsdargs.name = NULL; + nfsdargs.namelen = 0; + if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { + syslog(LOG_ERR, + "can't add UDP6 socket"); + exit(1); + } + (void)close(sock); + } } -#endif /* notyet */ - nfsdargs.sock = sock; - nfsdargs.name = NULL; - nfsdargs.namelen = 0; - if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { - syslog(LOG_ERR, "can't add UDP socket"); - exit(1); + if (rpcbreg == 1) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = IPPROTO_UDP; + ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp6); + if (ecode != 0) { + syslog(LOG_ERR, "getaddrinfo udp6: %s", + gai_strerror(ecode)); + exit(1); + } + nconf_udp6 = getnetconfigent("udp6"); + if (nconf_udp6 == NULL) + err(1, "getnetconfigent udp6 failed"); + nb_udp6.buf = ai_udp6->ai_addr; + nb_udp6.len = nb_udp6.maxlen = ai_udp6->ai_addrlen; + if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp6, &nb_udp6)) || + (!rpcb_set(RPCPROG_NFS, 3, nconf_udp6, &nb_udp6))) + err(1, "rpcb_set udp6 failed"); + freeaddrinfo(ai_udp6); } - close(sock); } -#endif /* ISO */ - - /* Now set up the master server socket waiting for tcp connections. */ - on = 1; - FD_ZERO(&sockbits); - connect_type_cnt = 0; - for (i = 0; tcpflag && i < bindhostc; i++) { - if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { - syslog(LOG_ERR, "can't create tcp socket"); - exit(1); - } - if (setsockopt(tcpsock, - SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) - syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m"); - setbindhost(&inetaddr, bindhost[i]); - if (bind(tcpsock, - (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) { - syslog(LOG_ERR, "can't bind tcp addr %s: %m", bindhost[i]); - exit(1); - } - if (listen(tcpsock, 5) < 0) { - syslog(LOG_ERR, "listen failed"); - exit(1); + + /* Set up the socket for tcp and rpcb register it. */ + if (tcpflag) { + rpcbreg = 0; + for (i = 0; i < bindhostc; i++) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = IPPROTO_TCP; + if (setbindhost(&ai_tcp, bindhost[i], hints) == 0) { + rpcbreg = 1; + rpcbregcnt++; + if ((tcpsock = socket(AF_INET, SOCK_STREAM, + 0)) < 0) { + syslog(LOG_ERR, + "can't create tpc socket"); + exit(1); + } + if (setsockopt(tcpsock, SOL_SOCKET, + SO_REUSEADDR, + (char *)&on, sizeof(on)) < 0) + syslog(LOG_ERR, + "setsockopt SO_REUSEADDR: %m"); + if (bind(tcpsock, ai_tcp->ai_addr, + ai_tcp->ai_addrlen) < 0) { + syslog(LOG_ERR, + "can't bind tcp addr %s: %m", + bindhost[i]); + exit(1); + } + if (listen(tcpsock, 5) < 0) { + syslog(LOG_ERR, "listen failed"); + exit(1); + } + freeaddrinfo(ai_tcp); + FD_SET(tcpsock, &sockbits); + FD_SET(tcpsock, &v4bits); + maxsock = tcpsock; + connect_type_cnt++; + } } - if (!pmap_set(RPCPROG_NFS, 2, IPPROTO_TCP, NFS_PORT) || - !pmap_set(RPCPROG_NFS, 3, IPPROTO_TCP, NFS_PORT)) { - syslog(LOG_ERR, "can't register tcp with portmap"); - exit(1); + if (rpcbreg == 1) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = IPPROTO_TCP; + ecode = getaddrinfo(NULL, "nfs", &hints, + &ai_tcp); + if (ecode != 0) { + syslog(LOG_ERR, "getaddrinfo tcp: %s", + gai_strerror(ecode)); + exit(1); + } + nconf_tcp = getnetconfigent("tcp"); + if (nconf_tcp == NULL) + err(1, "getnetconfigent tcp failed"); + nb_tcp.buf = ai_tcp->ai_addr; + nb_tcp.len = nb_tcp.maxlen = ai_tcp->ai_addrlen; + if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp, + &nb_tcp)) || (!rpcb_set(RPCPROG_NFS, 3, + nconf_tcp, &nb_tcp))) + err(1, "rpcb_set tcp failed"); + freeaddrinfo(ai_tcp); } - FD_SET(tcpsock, &sockbits); - maxsock = tcpsock; - connect_type_cnt++; } -#ifdef notyet - /* Now set up the master server socket waiting for tp4 connections. */ - if (tp4flag) { - if ((tp4sock = socket(AF_ISO, SOCK_SEQPACKET, 0)) < 0) { - syslog(LOG_ERR, "can't create tp4 socket"); - exit(1); - } - if (setsockopt(tp4sock, - SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) - syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m"); - memset(&isoaddr, 0, sizeof(isoaddr)); - isoaddr.siso_family = AF_ISO; - isoaddr.siso_tlen = 2; - cp = TSEL(&isoaddr); - *cp++ = (NFS_PORT >> 8); - *cp = (NFS_PORT & 0xff); - isoaddr.siso_len = sizeof(isoaddr); - if (bind(tp4sock, - (struct sockaddr *)&isoaddr, sizeof (isoaddr)) < 0) { - syslog(LOG_ERR, "can't bind tp4 addr"); - exit(1); - } - if (listen(tp4sock, 5) < 0) { - syslog(LOG_ERR, "listen failed"); - exit(1); + /* Set up the socket for tcp6 and rpcb register it. */ + if (tcpflag && ip6flag) { + rpcbreg = 0; + for (i = 0; i < bindhostc; i++) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = IPPROTO_TCP; + if (setbindhost(&ai_tcp6, bindhost[i], hints) == 0) { + rpcbreg = 1; + rpcbregcnt++; + if ((tcp6sock = socket(ai_tcp6->ai_family, + ai_tcp6->ai_socktype, + ai_tcp6->ai_protocol)) < 0) { + syslog(LOG_ERR, + "can't create tcp6 socket"); + exit(1); + } + if (setsockopt(tcp6sock, SOL_SOCKET, + SO_REUSEADDR, + (char *)&on, sizeof(on)) < 0) + syslog(LOG_ERR, + "setsockopt SO_REUSEADDR: %m"); + if (setsockopt(tcp6sock, IPPROTO_IPV6, + IPV6_BINDV6ONLY, &on, sizeof on) < 0) { + syslog(LOG_ERR, + "can't set v6-only binding for tcp6 " + "socket: %m"); + exit(1); + } + if (bind(tcp6sock, ai_tcp6->ai_addr, + ai_tcp6->ai_addrlen) < 0) { + syslog(LOG_ERR, + "can't bind tcp6 addr %s: %m", + bindhost[i]); + exit(1); + } + if (listen(tcp6sock, 5) < 0) { + syslog(LOG_ERR, "listen failed"); + exit(1); + } + freeaddrinfo(ai_tcp6); + FD_SET(tcp6sock, &sockbits); + FD_SET(tcp6sock, &v6bits); + if (maxsock < tcp6sock) + maxsock = tcp6sock; + connect_type_cnt++; + } } - /* - * XXX - * Someday this should probably use "rpcbind", the son of - * portmap. - */ - if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) { - syslog(LOG_ERR, "can't register tcp with portmap"); - exit(1); + if (rpcbreg == 1) { + memset(&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = IPPROTO_TCP; + ecode = getaddrinfo(NULL, "nfs", &hints, &ai_tcp6); + if (ecode != 0) { + syslog(LOG_ERR, "getaddrinfo tcp6: %s", + gai_strerror(ecode)); + exit(1); + } + nconf_tcp6 = getnetconfigent("tcp6"); + if (nconf_tcp6 == NULL) + err(1, "getnetconfigent tcp6 failed"); + nb_tcp6.buf = ai_tcp6->ai_addr; + nb_tcp6.len = nb_tcp6.maxlen = ai_tcp6->ai_addrlen; + if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp6, &nb_tcp6)) || + (!rpcb_set(RPCPROG_NFS, 3, nconf_tcp6, &nb_tcp6))) + err(1, "rpcb_set tcp6 failed"); + freeaddrinfo(ai_tcp6); } - FD_SET(tp4sock, &sockbits); - maxsock = tp4sock; - connect_type_cnt++; } - /* Now set up the master server socket waiting for tpip connections. */ - for (i = 0; tpipflag && i < bindhostc; i++) { - if ((tpipsock = socket(AF_INET, SOCK_SEQPACKET, 0)) < 0) { - syslog(LOG_ERR, "can't create tpip socket"); - exit(1); - } - if (setsockopt(tpipsock, - SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) - syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m"); - setbindhost(&inetaddr, bindhost[i]); - if (bind(tpipsock, - (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) { - syslog(LOG_ERR, "can't bind tcp addr %s: %m", bindhost[i]); - exit(1); - } - if (listen(tpipsock, 5) < 0) { - syslog(LOG_ERR, "listen failed"); - exit(1); - } - /* - * XXX - * Someday this should probably use "rpcbind", the son of - * portmap. - */ - if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) { - syslog(LOG_ERR, "can't register tcp with portmap"); - exit(1); - } - FD_SET(tpipsock, &sockbits); - maxsock = tpipsock; - connect_type_cnt++; + if (rpcbregcnt == 0) { + syslog(LOG_ERR, "rpcb_set() failed, nothing to do: %m"); + exit(1); } -#endif /* notyet */ - if (connect_type_cnt == 0) - exit(0); + if ((tcpflag) && (connect_type_cnt == 0)) { + syslog(LOG_ERR, "tcp connects == 0, nothing to do: %m"); + exit(1); + } setproctitle("master"); @@ -591,82 +794,94 @@ main(argc, argv, envp) exit(1); } } - if (tcpflag && FD_ISSET(tcpsock, &ready)) { - len = sizeof(inetpeer); - if ((msgsock = accept(tcpsock, - (struct sockaddr *)&inetpeer, &len)) < 0) { - syslog(LOG_ERR, "accept failed: %m"); - exit(1); - } - memset(inetpeer.sin_zero, 0, sizeof(inetpeer.sin_zero)); - if (setsockopt(msgsock, SOL_SOCKET, - SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) - syslog(LOG_ERR, - "setsockopt SO_KEEPALIVE: %m"); - nfsdargs.sock = msgsock; - nfsdargs.name = (caddr_t)&inetpeer; - nfsdargs.namelen = sizeof(inetpeer); - nfssvc(NFSSVC_ADDSOCK, &nfsdargs); - (void)close(msgsock); - } -#ifdef notyet - if (tp4flag && FD_ISSET(tp4sock, &ready)) { - len = sizeof(isopeer); - if ((msgsock = accept(tp4sock, - (struct sockaddr *)&isopeer, &len)) < 0) { - syslog(LOG_ERR, "accept failed: %m"); - exit(1); - } - if (setsockopt(msgsock, SOL_SOCKET, - SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) - syslog(LOG_ERR, - "setsockopt SO_KEEPALIVE: %m"); - nfsdargs.sock = msgsock; - nfsdargs.name = (caddr_t)&isopeer; - nfsdargs.namelen = len; - nfssvc(NFSSVC_ADDSOCK, &nfsdargs); - (void)close(msgsock); - } - if (tpipflag && FD_ISSET(tpipsock, &ready)) { - len = sizeof(inetpeer); - if ((msgsock = accept(tpipsock, - (struct sockaddr *)&inetpeer, &len)) < 0) { - syslog(LOG_ERR, "accept failed: %m"); - exit(1); + for (tcpsock = 0; tcpsock <= maxsock; tcpsock++) { + if (FD_ISSET(tcpsock, &ready)) { + if (FD_ISSET(tcpsock, &v4bits)) { + len = sizeof(inetpeer); + if ((msgsock = accept(tcpsock, + (struct sockaddr *)&inetpeer, &len)) < 0) { + syslog(LOG_ERR, "accept failed: %m"); + exit(1); + } + memset(inetpeer.sin_zero, 0, + sizeof(inetpeer.sin_zero)); + if (setsockopt(msgsock, SOL_SOCKET, + SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) + syslog(LOG_ERR, + "setsockopt SO_KEEPALIVE: %m"); + nfsdargs.sock = msgsock; + nfsdargs.name = (caddr_t)&inetpeer; + nfsdargs.namelen = sizeof(inetpeer); + nfssvc(NFSSVC_ADDSOCK, &nfsdargs); + (void)close(msgsock); + } else if (FD_ISSET(tcpsock, &v6bits)) { + len = sizeof(inet6peer); + if ((msgsock = accept(tcpsock, + (struct sockaddr *)&inet6peer, + &len)) < 0) { + syslog(LOG_ERR, + "accept failed: %m"); + exit(1); + } + if (setsockopt(msgsock, SOL_SOCKET, + SO_KEEPALIVE, (char *)&on, + sizeof(on)) < 0) + syslog(LOG_ERR, "setsockopt " + "SO_KEEPALIVE: %m"); + nfsdargs.sock = msgsock; + nfsdargs.name = (caddr_t)&inet6peer; + nfsdargs.namelen = sizeof(inet6peer); + nfssvc(NFSSVC_ADDSOCK, &nfsdargs); + (void)close(msgsock); + } } - if (setsockopt(msgsock, SOL_SOCKET, - SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) - syslog(LOG_ERR, "setsockopt SO_KEEPALIVE: %m"); - nfsdargs.sock = msgsock; - nfsdargs.name = (caddr_t)&inetpeer; - nfsdargs.namelen = len; - nfssvc(NFSSVC_ADDSOCK, &nfsdargs); - (void)close(msgsock); } -#endif /* notyet */ } } -void -setbindhost(struct sockaddr_in *ia, const char *bindhost) +int +setbindhost(struct addrinfo **ai, const char *bindhost, struct addrinfo hints) { - ia->sin_family = AF_INET; - ia->sin_port = htons(NFS_PORT); - ia->sin_len = sizeof(*ia); - if (bindhost == NULL || strcmp(bindhost,"*") == 0) { - ia->sin_addr.s_addr = INADDR_ANY; - } else { - if (inet_aton(bindhost, &ia->sin_addr) == 0) { - struct hostent *he; - - he = gethostbyname2(bindhost, ia->sin_family); - if (he == NULL) { - syslog(LOG_ERR, "gethostbyname of %s failed", bindhost); - exit(1); + int ecode; + u_int32_t host_addr[4]; /* IPv4 or IPv6 */ + const char *hostptr; + + if (bindhost == NULL || strcmp("*", bindhost) == 0) + hostptr = NULL; + else + hostptr = bindhost; + + if (hostptr != NULL) { + switch (hints.ai_family) { + case AF_INET: + if (inet_pton(AF_INET, hostptr, host_addr) == 1) { + hints.ai_flags = AI_NUMERICHOST; + } else { + if (inet_pton(AF_INET6, hostptr, + host_addr) == 1) + return (1); + } + break; + case AF_INET6: + if (inet_pton(AF_INET6, hostptr, host_addr) == 1) { + hints.ai_flags = AI_NUMERICHOST; + } else { + if (inet_pton(AF_INET, hostptr, + host_addr) == 1) + return (1); } - bcopy(he->h_addr, &ia->sin_addr, he->h_length); + break; + default: } } + + ecode = getaddrinfo(hostptr, "nfs", &hints, ai); + if (ecode != 0) { + syslog(LOG_ERR, "getaddrinfo %s: %s", bindhost, + gai_strerror(ecode)); + return (1); + } + return (0); } void @@ -691,6 +906,48 @@ reapchild(signo) while (wait3(NULL, WNOHANG, NULL) > 0); } +void +unregistration() +{ + if ((!rpcb_unset(RPCPROG_NFS, 2, NULL)) || + (!rpcb_unset(RPCPROG_NFS, 3, NULL))) + syslog(LOG_ERR, "rpcb_unset failed"); +} + +void +killchildren() +{ + int i; + sigset_t sigs; + + sigemptyset(&sigs); + /* + * Block SIGCHLD to avoid killing a reaped process (although it is + * unlikely, the pid might have been reused). + */ + sigaddset(&sigs, SIGCHLD); + if (sigprocmask(SIG_BLOCK, &sigs, NULL) == -1) { + syslog(LOG_ERR, "sigprocmask: %s", + strerror(errno)); + return; + } + for (i = 0; i < nfsdcnt; i++) { + if (children[i] > 0) + kill(children[i], SIGKILL); + } + if (sigprocmask(SIG_UNBLOCK, &sigs, NULL) == -1) { + syslog(LOG_ERR, "sigprocmask: %s", strerror(errno)); + } + unregistration(); +} + +void +cleanup(signo) +{ + killchildren(); + exit (0); +} + #ifdef OLD_SETPROCTITLE #ifdef __FreeBSD__ void |