Index: head/usr.sbin/rpc.statd/Makefile =================================================================== --- head/usr.sbin/rpc.statd/Makefile (revision 352571) +++ head/usr.sbin/rpc.statd/Makefile (revision 352572) @@ -1,27 +1,25 @@ # $FreeBSD$ PROG= rpc.statd MAN= rpc.statd.8 SRCS= file.c sm_inter_svc.c sm_inter.h statd.c procs.c -CFLAGS+= -I. -WARNS?= 2 - +CFLAGS+= -I${.OBJDIR} LIBADD= rpcsvc CLEANFILES= sm_inter_svc.c sm_inter.h RPCSRC= ${SYSROOT:U${DESTDIR}}/usr/include/rpcsvc/sm_inter.x RPCGEN= RPCGEN_CPP=${CPP:Q} rpcgen -L -C sm_inter_svc.c: ${RPCSRC} ${RPCGEN} -m -o ${.TARGET} ${.ALLSRC} sm_inter.h: ${RPCSRC} ${RPCGEN} -h -o ${.TARGET} ${.ALLSRC} test: test.o ${CC} ${LDFLAGS} -o ${.TARGET} ${.ALLSRC} ${LIBADD:S/^/-l/} CLEANFILES+= test test.o .include Index: head/usr.sbin/rpc.statd/file.c =================================================================== --- head/usr.sbin/rpc.statd/file.c (revision 352571) +++ head/usr.sbin/rpc.statd/file.c (revision 352572) @@ -1,369 +1,369 @@ /*- * SPDX-License-Identifier: BSD-4-Clause * * Copyright (c) 1995 * A.R. Gordon (andrew.gordon@net-tel.co.uk). All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the FreeBSD project * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY ANDREW GORDON AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ * */ #include #include #include #include #include #include #include #include #include /* For mmap() */ #include #include #include #include "statd.h" FileLayout *status_info; /* Pointer to the mmap()ed status file */ static int status_fd; /* File descriptor for the open file */ static off_t status_file_len; /* Current on-disc length of file */ /* sync_file --------------------------------------------------------------- */ /* Purpose: Packaged call of msync() to flush changes to mmap()ed file Returns: Nothing. Errors to syslog. */ void sync_file(void) { if (msync((void *)status_info, 0, 0) < 0) { syslog(LOG_ERR, "msync() failed: %s", strerror(errno)); } } /* find_host -------------------------------------------------------------- */ /* Purpose: Find the entry in the status file for a given host Returns: Pointer to that entry in the mmap() region, or NULL. Notes: Also creates entries if requested. Failure to create also returns NULL. */ HostInfo *find_host(char *hostname, int create) { HostInfo *hp; HostInfo *spare_slot = NULL; HostInfo *result = NULL; struct addrinfo *ai1, *ai2; int i; ai2 = NULL; if (getaddrinfo(hostname, NULL, NULL, &ai1) != 0) ai1 = NULL; for (i = 0, hp = status_info->hosts; i < status_info->noOfHosts; i++, hp++) { if (!strncasecmp(hostname, hp->hostname, SM_MAXSTRLEN)) { result = hp; break; } if (hp->hostname[0] != '\0' && getaddrinfo(hp->hostname, NULL, NULL, &ai2) != 0) ai2 = NULL; if (ai1 && ai2) { struct addrinfo *p1, *p2; for (p1 = ai1; !result && p1; p1 = p1->ai_next) { for (p2 = ai2; !result && p2; p2 = p2->ai_next) { if (p1->ai_family == p2->ai_family && p1->ai_addrlen == p2->ai_addrlen && !memcmp(p1->ai_addr, p2->ai_addr, p1->ai_addrlen)) { result = hp; break; } } } if (result) break; } if (ai2) { freeaddrinfo(ai2); ai2 = NULL; } if (!spare_slot && !hp->monList && !hp->notifyReqd) spare_slot = hp; } if (ai1) freeaddrinfo(ai1); /* Return if entry found, or if not asked to create one. */ if (result || !create) return (result); /* Now create an entry, using the spare slot if one was found or */ /* adding to the end of the list otherwise, extending file if reqd */ if (!spare_slot) { off_t desired_size; spare_slot = &status_info->hosts[status_info->noOfHosts]; desired_size = ((char*)spare_slot - (char*)status_info) + sizeof(HostInfo); if (desired_size > status_file_len) { /* Extend file by writing 1 byte of junk at the desired end pos */ if (lseek(status_fd, desired_size - 1, SEEK_SET) == -1 || write(status_fd, "\0", 1) < 0) { syslog(LOG_ERR, "Unable to extend status file"); return (NULL); } status_file_len = desired_size; } status_info->noOfHosts++; } /* Initialise the spare slot that has been found/created */ /* Note that we do not msync(), since the caller is presumed to be */ /* about to modify the entry further */ memset(spare_slot, 0, sizeof(HostInfo)); strncpy(spare_slot->hostname, hostname, SM_MAXSTRLEN); return (spare_slot); } /* init_file -------------------------------------------------------------- */ /* Purpose: Open file, create if necessary, initialise it. Returns: Nothing - exits on error Notes: Called before process becomes daemon, hence logs to stderr rather than syslog. Opens the file, then mmap()s it for ease of access. Also performs initial clean-up of the file, zeroing monitor list pointers, setting the notifyReqd flag in all hosts that had a monitor list, and incrementing the state number to the next even value. */ void init_file(const char *filename) { int new_file = FALSE; char buf[HEADER_LEN]; int i; /* try to open existing file - if not present, create one */ status_fd = open(filename, O_RDWR); if ((status_fd < 0) && (errno == ENOENT)) { status_fd = open(filename, O_RDWR | O_CREAT, 0644); new_file = TRUE; } if (status_fd < 0) errx(1, "unable to open status file %s", filename); /* File now open. mmap() it, with a generous size to allow for */ /* later growth, where we will extend the file but not re-map it. */ status_info = (FileLayout *) mmap(NULL, 0x10000000, PROT_READ | PROT_WRITE, MAP_SHARED, status_fd, 0); if (status_info == (FileLayout *) MAP_FAILED) err(1, "unable to mmap() status file"); status_file_len = lseek(status_fd, 0L, SEEK_END); /* If the file was not newly created, validate the contents, and if */ /* defective, re-create from scratch. */ if (!new_file) { - if ((status_file_len < HEADER_LEN) || (status_file_len - < (HEADER_LEN + sizeof(HostInfo) * status_info->noOfHosts)) ) + if ((status_file_len < (off_t)HEADER_LEN) || (status_file_len + < (off_t)(HEADER_LEN + sizeof(HostInfo) * status_info->noOfHosts)) ) { warnx("status file is corrupt"); new_file = TRUE; } } /* Initialisation of a new, empty file. */ if (new_file) { memset(buf, 0, sizeof(buf)); lseek(status_fd, 0L, SEEK_SET); write(status_fd, buf, HEADER_LEN); status_file_len = HEADER_LEN; } else { /* Clean-up of existing file - monitored hosts will have a pointer */ /* to a list of clients, which refers to memory in the previous */ /* incarnation of the program and so are meaningless now. These */ /* pointers are zeroed and the fact that the host was previously */ /* monitored is recorded by setting the notifyReqd flag, which will */ /* in due course cause a SM_NOTIFY to be sent. */ /* Note that if we crash twice in quick succession, some hosts may */ /* already have notifyReqd set, where we didn't manage to notify */ /* them before the second crash occurred. */ for (i = 0; i < status_info->noOfHosts; i++) { HostInfo *this_host = &status_info->hosts[i]; if (this_host->monList) { this_host->notifyReqd = TRUE; this_host->monList = NULL; } } /* Select the next higher even number for the state counter */ status_info->ourState = (status_info->ourState + 2) & 0xfffffffe; /*???????******/ status_info->ourState++; } } /* notify_one_host --------------------------------------------------------- */ /* Purpose: Perform SM_NOTIFY procedure at specified host Returns: TRUE if success, FALSE if failed. Notes: Only report failure if verbose is non-zero. Caller will only set verbose to non-zero for the first attempt to contact the host. */ static int notify_one_host(char *hostname, int verbose) { struct timeval timeout = { 20, 0 }; /* 20 secs timeout */ CLIENT *cli; char dummy; stat_chge arg; char our_hostname[SM_MAXSTRLEN+1]; gethostname(our_hostname, sizeof(our_hostname)); our_hostname[SM_MAXSTRLEN] = '\0'; arg.mon_name = our_hostname; arg.state = status_info->ourState; if (debug) syslog (LOG_DEBUG, "Sending SM_NOTIFY to host %s from %s", hostname, our_hostname); cli = clnt_create(hostname, SM_PROG, SM_VERS, "udp"); if (!cli) { syslog(LOG_ERR, "Failed to contact host %s%s", hostname, clnt_spcreateerror("")); return (FALSE); } if (clnt_call(cli, SM_NOTIFY, (xdrproc_t)xdr_stat_chge, &arg, (xdrproc_t)xdr_void, &dummy, timeout) != RPC_SUCCESS) { if (verbose) syslog(LOG_ERR, "Failed to contact rpc.statd at host %s", hostname); clnt_destroy(cli); return (FALSE); } clnt_destroy(cli); return (TRUE); } /* notify_hosts ------------------------------------------------------------ */ /* Purpose: Send SM_NOTIFY to all hosts marked as requiring it Returns: Nothing, immediately - forks a process to do the work. Notes: Does nothing if there are no monitored hosts. Called after all the initialisation has been done - logs to syslog. */ void notify_hosts(void) { int i; int attempts; int work_to_do = FALSE; HostInfo *hp; pid_t pid; /* First check if there is in fact any work to do. */ for (i = status_info->noOfHosts, hp = status_info->hosts; i ; i--, hp++) { if (hp->notifyReqd) { work_to_do = TRUE; break; } } if (!work_to_do) return; /* No work found */ pid = fork(); if (pid == -1) { syslog(LOG_ERR, "Unable to fork notify process - %s", strerror(errno)); return; } if (pid) return; /* Here in the child process. We continue until all the hosts marked */ /* as requiring notification have been duly notified. */ /* If one of the initial attempts fails, we sleep for a while and */ /* have another go. This is necessary because when we have crashed, */ /* (eg. a power outage) it is quite possible that we won't be able to */ /* contact all monitored hosts immediately on restart, either because */ /* they crashed too and take longer to come up (in which case the */ /* notification isn't really required), or more importantly if some */ /* router etc. needed to reach the monitored host has not come back */ /* up yet. In this case, we will be a bit late in re-establishing */ /* locks (after the grace period) but that is the best we can do. */ /* We try 10 times at 5 sec intervals, 10 more times at 1 minute */ /* intervals, then 24 more times at hourly intervals, finally */ /* giving up altogether if the host hasn't come back to life after */ /* 24 hours. */ for (attempts = 0; attempts < 44; attempts++) { work_to_do = FALSE; /* Unless anything fails */ for (i = status_info->noOfHosts, hp = status_info->hosts; i ; i--, hp++) { if (hp->notifyReqd) { if (notify_one_host(hp->hostname, attempts == 0)) { hp->notifyReqd = FALSE; sync_file(); } else work_to_do = TRUE; } } if (!work_to_do) break; if (attempts < 10) sleep(5); else if (attempts < 20) sleep(60); else sleep(60*60); } exit(0); } Index: head/usr.sbin/rpc.statd/statd.c =================================================================== --- head/usr.sbin/rpc.statd/statd.c (revision 352571) +++ head/usr.sbin/rpc.statd/statd.c (revision 352572) @@ -1,657 +1,658 @@ /*- * SPDX-License-Identifier: BSD-4-Clause * * Copyright (c) 1995 * A.R. Gordon (andrew.gordon@net-tel.co.uk). All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the FreeBSD project * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY ANDREW GORDON AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ /* main() function for status monitor daemon. Some of the code in this */ /* file was generated by running rpcgen /usr/include/rpcsvc/sm_inter.x */ /* The actual program logic is in the file procs.c */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "statd.h" #define GETPORT_MAXTRY 20 /* Max tries to get a port # */ int debug = 0; /* Controls syslog() calls for debug messages */ -char **hosts, *svcport_str = NULL; -int nhosts = 0; -int xcreated = 0; +static char **hosts, *svcport_str = NULL; +static int nhosts = 0; +static int xcreated = 0; static int mallocd_svcport = 0; static int *sock_fd; static int sock_fdcnt; static int sock_fdpos; static int create_service(struct netconfig *nconf); static void complete_service(struct netconfig *nconf, char *port_str); static void clearout_service(void); static void handle_sigchld(int sig); void out_of_mem(void) __dead2; static void usage(void) __dead2; int main(int argc, char **argv) { struct sigaction sa; struct netconfig *nconf; void *nc_handle; in_port_t svcport; int ch, i, s; - char *endptr, **hosts_bak; + char *endptr; + char **hosts_bak; int have_v6 = 1; int maxrec = RPC_MAXDATASIZE; int attempt_cnt, port_len, port_pos, ret; char **port_list; while ((ch = getopt(argc, argv, "dh:p:")) != -1) switch (ch) { case 'd': debug = 1; break; case 'h': ++nhosts; hosts_bak = hosts; hosts_bak = realloc(hosts, nhosts * sizeof(char *)); if (hosts_bak == NULL) { if (hosts != NULL) { for (i = 0; i < nhosts; i++) free(hosts[i]); free(hosts); out_of_mem(); } } hosts = hosts_bak; hosts[nhosts - 1] = strdup(optarg); if (hosts[nhosts - 1] == NULL) { for (i = 0; i < (nhosts - 1); i++) free(hosts[i]); free(hosts); out_of_mem(); } break; case 'p': endptr = NULL; svcport = (in_port_t)strtoul(optarg, &endptr, 10); if (endptr == NULL || *endptr != '\0' || svcport == 0 || svcport >= IPPORT_MAX) usage(); svcport_str = strdup(optarg); break; default: usage(); } argc -= optind; argv += optind; (void)rpcb_unset(SM_PROG, SM_VERS, NULL); /* * Check if IPv6 support is present. */ s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); if (s < 0) have_v6 = 0; else close(s); rpc_control(RPC_SVC_CONNMAXREC_SET, &maxrec); /* * If no hosts were specified, add a wildcard entry to bind to * INADDR_ANY. Otherwise make sure 127.0.0.1 and ::1 are added to the * list. */ if (nhosts == 0) { hosts = malloc(sizeof(char *)); if (hosts == NULL) out_of_mem(); - hosts[0] = "*"; + hosts[0] = strdup("*"); nhosts = 1; } else { hosts_bak = hosts; if (have_v6) { hosts_bak = realloc(hosts, (nhosts + 2) * sizeof(char *)); if (hosts_bak == NULL) { for (i = 0; i < nhosts; i++) free(hosts[i]); free(hosts); out_of_mem(); } else hosts = hosts_bak; nhosts += 2; - hosts[nhosts - 2] = "::1"; + hosts[nhosts - 2] = strdup("::1"); } else { hosts_bak = realloc(hosts, (nhosts + 1) * sizeof(char *)); if (hosts_bak == NULL) { for (i = 0; i < nhosts; i++) free(hosts[i]); free(hosts); out_of_mem(); } else { nhosts += 1; hosts = hosts_bak; } } - hosts[nhosts - 1] = "127.0.0.1"; + hosts[nhosts - 1] = strdup("127.0.0.1"); } attempt_cnt = 1; sock_fdcnt = 0; sock_fd = NULL; port_list = NULL; port_len = 0; nc_handle = setnetconfig(); while ((nconf = getnetconfig(nc_handle))) { /* We want to listen only on udp6, tcp6, udp, tcp transports */ if (nconf->nc_flag & NC_VISIBLE) { /* Skip if there's no IPv6 support */ if (have_v6 == 0 && strcmp(nconf->nc_protofmly, "inet6") == 0) { /* DO NOTHING */ } else { ret = create_service(nconf); if (ret == 1) /* Ignore this call */ continue; if (ret < 0) { /* * Failed to bind port, so close off * all sockets created and try again * if the port# was dynamically * assigned via bind(2). */ clearout_service(); if (mallocd_svcport != 0 && attempt_cnt < GETPORT_MAXTRY) { free(svcport_str); svcport_str = NULL; mallocd_svcport = 0; } else { errno = EADDRINUSE; syslog(LOG_ERR, "bindresvport_sa: %m"); exit(1); } /* Start over at the first service. */ free(sock_fd); sock_fdcnt = 0; sock_fd = NULL; nc_handle = setnetconfig(); attempt_cnt++; } else if (mallocd_svcport != 0 && attempt_cnt == GETPORT_MAXTRY) { /* * For the last attempt, allow * different port #s for each nconf * by saving the svcport_str and * setting it back to NULL. */ port_list = realloc(port_list, (port_len + 1) * sizeof(char *)); if (port_list == NULL) out_of_mem(); port_list[port_len++] = svcport_str; svcport_str = NULL; mallocd_svcport = 0; } } } } /* * Successfully bound the ports, so call complete_service() to * do the rest of the setup on the service(s). */ sock_fdpos = 0; port_pos = 0; nc_handle = setnetconfig(); while ((nconf = getnetconfig(nc_handle))) { /* We want to listen only on udp6, tcp6, udp, tcp transports */ if (nconf->nc_flag & NC_VISIBLE) { /* Skip if there's no IPv6 support */ if (have_v6 == 0 && strcmp(nconf->nc_protofmly, "inet6") == 0) { /* DO NOTHING */ } else if (port_list != NULL) { if (port_pos >= port_len) { syslog(LOG_ERR, "too many port#s"); exit(1); } complete_service(nconf, port_list[port_pos++]); } else complete_service(nconf, svcport_str); } } endnetconfig(nc_handle); free(sock_fd); if (port_list != NULL) { for (port_pos = 0; port_pos < port_len; port_pos++) free(port_list[port_pos]); free(port_list); } init_file("/var/db/statd.status"); /* Note that it is NOT sensible to run this program from inetd - the */ /* protocol assumes that it will run immediately at boot time. */ daemon(0, 0); openlog("rpc.statd", 0, LOG_DAEMON); if (debug) syslog(LOG_INFO, "Starting - debug enabled"); else syslog(LOG_INFO, "Starting"); /* Install signal handler to collect exit status of child processes */ sa.sa_handler = handle_sigchld; sigemptyset(&sa.sa_mask); sigaddset(&sa.sa_mask, SIGCHLD); sa.sa_flags = SA_RESTART; sigaction(SIGCHLD, &sa, NULL); /* Initialisation now complete - start operating */ notify_hosts(); /* Forks a process (if necessary) to do the */ /* SM_NOTIFY calls, which may be slow. */ svc_run(); /* Should never return */ exit(1); } /* * This routine creates and binds sockets on the appropriate * addresses. It gets called one time for each transport. * It returns 0 upon success, 1 for ingore the call and -1 to indicate * bind failed with EADDRINUSE. * Any file descriptors that have been created are stored in sock_fd and * the total count of them is maintained in sock_fdcnt. */ static int create_service(struct netconfig *nconf) { struct addrinfo hints, *res = NULL; struct sockaddr_in *sin; struct sockaddr_in6 *sin6; struct __rpc_sockinfo si; int aicode; int fd; int nhostsbak; int r; u_int32_t host_addr[4]; /* IPv4 or IPv6 */ int mallocd_res; if ((nconf->nc_semantics != NC_TPI_CLTS) && (nconf->nc_semantics != NC_TPI_COTS) && (nconf->nc_semantics != NC_TPI_COTS_ORD)) return (1); /* not my type */ /* * XXX - using RPC library internal functions. */ if (!__rpc_nconf2sockinfo(nconf, &si)) { syslog(LOG_ERR, "cannot get information for %s", nconf->nc_netid); return (1); } /* Get rpc.statd's address on this transport */ memset(&hints, 0, sizeof hints); hints.ai_family = si.si_af; hints.ai_socktype = si.si_socktype; hints.ai_protocol = si.si_proto; /* * Bind to specific IPs if asked to */ nhostsbak = nhosts; while (nhostsbak > 0) { --nhostsbak; sock_fd = realloc(sock_fd, (sock_fdcnt + 1) * sizeof(int)); if (sock_fd == NULL) out_of_mem(); sock_fd[sock_fdcnt++] = -1; /* Set invalid for now. */ mallocd_res = 0; hints.ai_flags = AI_PASSIVE; /* * XXX - using RPC library internal functions. */ if ((fd = __rpc_nconf2fd(nconf)) < 0) { syslog(LOG_ERR, "cannot create socket for %s", nconf->nc_netid); continue; } switch (hints.ai_family) { case AF_INET: if (inet_pton(AF_INET, hosts[nhostsbak], host_addr) == 1) { hints.ai_flags |= AI_NUMERICHOST; } else { /* * Skip if we have an AF_INET6 address. */ if (inet_pton(AF_INET6, hosts[nhostsbak], host_addr) == 1) { close(fd); continue; } } break; case AF_INET6: if (inet_pton(AF_INET6, hosts[nhostsbak], host_addr) == 1) { hints.ai_flags |= AI_NUMERICHOST; } else { /* * Skip if we have an AF_INET address. */ if (inet_pton(AF_INET, hosts[nhostsbak], host_addr) == 1) { close(fd); continue; } } break; default: break; } /* * If no hosts were specified, just bind to INADDR_ANY */ if (strcmp("*", hosts[nhostsbak]) == 0) { if (svcport_str == NULL) { res = malloc(sizeof(struct addrinfo)); if (res == NULL) out_of_mem(); mallocd_res = 1; res->ai_flags = hints.ai_flags; res->ai_family = hints.ai_family; res->ai_protocol = hints.ai_protocol; switch (res->ai_family) { case AF_INET: sin = malloc(sizeof(struct sockaddr_in)); if (sin == NULL) out_of_mem(); sin->sin_family = AF_INET; sin->sin_port = htons(0); sin->sin_addr.s_addr = htonl(INADDR_ANY); res->ai_addr = (struct sockaddr*) sin; res->ai_addrlen = (socklen_t) sizeof(struct sockaddr_in); break; case AF_INET6: sin6 = malloc(sizeof(struct sockaddr_in6)); if (sin6 == NULL) out_of_mem(); sin6->sin6_family = AF_INET6; sin6->sin6_port = htons(0); sin6->sin6_addr = in6addr_any; res->ai_addr = (struct sockaddr*) sin6; res->ai_addrlen = (socklen_t) sizeof(struct sockaddr_in6); break; default: syslog(LOG_ERR, "bad addr fam %d", res->ai_family); exit(1); } } else { if ((aicode = getaddrinfo(NULL, svcport_str, &hints, &res)) != 0) { syslog(LOG_ERR, "cannot get local address for %s: %s", nconf->nc_netid, gai_strerror(aicode)); close(fd); continue; } } } else { if ((aicode = getaddrinfo(hosts[nhostsbak], svcport_str, &hints, &res)) != 0) { syslog(LOG_ERR, "cannot get local address for %s: %s", nconf->nc_netid, gai_strerror(aicode)); close(fd); continue; } } /* Store the fd. */ sock_fd[sock_fdcnt - 1] = fd; /* Now, attempt the bind. */ r = bindresvport_sa(fd, res->ai_addr); if (r != 0) { if (errno == EADDRINUSE && mallocd_svcport != 0) { if (mallocd_res != 0) { free(res->ai_addr); free(res); } else freeaddrinfo(res); return (-1); } syslog(LOG_ERR, "bindresvport_sa: %m"); exit(1); } if (svcport_str == NULL) { svcport_str = malloc(NI_MAXSERV * sizeof(char)); if (svcport_str == NULL) out_of_mem(); mallocd_svcport = 1; if (getnameinfo(res->ai_addr, res->ai_addr->sa_len, NULL, NI_MAXHOST, svcport_str, NI_MAXSERV * sizeof(char), NI_NUMERICHOST | NI_NUMERICSERV)) errx(1, "Cannot get port number"); } if (mallocd_res != 0) { free(res->ai_addr); free(res); } else freeaddrinfo(res); res = NULL; } return (0); } /* * Called after all the create_service() calls have succeeded, to complete * the setup and registration. */ static void complete_service(struct netconfig *nconf, char *port_str) { struct addrinfo hints, *res = NULL; struct __rpc_sockinfo si; struct netbuf servaddr; SVCXPRT *transp = NULL; int aicode, fd, nhostsbak; int registered = 0; if ((nconf->nc_semantics != NC_TPI_CLTS) && (nconf->nc_semantics != NC_TPI_COTS) && (nconf->nc_semantics != NC_TPI_COTS_ORD)) return; /* not my type */ /* * XXX - using RPC library internal functions. */ if (!__rpc_nconf2sockinfo(nconf, &si)) { syslog(LOG_ERR, "cannot get information for %s", nconf->nc_netid); return; } nhostsbak = nhosts; while (nhostsbak > 0) { --nhostsbak; if (sock_fdpos >= sock_fdcnt) { /* Should never happen. */ syslog(LOG_ERR, "Ran out of socket fd's"); return; } fd = sock_fd[sock_fdpos++]; if (fd < 0) continue; if (nconf->nc_semantics != NC_TPI_CLTS) listen(fd, SOMAXCONN); transp = svc_tli_create(fd, nconf, NULL, RPC_MAXDATASIZE, RPC_MAXDATASIZE); if (transp != (SVCXPRT *) NULL) { if (!svc_register(transp, SM_PROG, SM_VERS, sm_prog_1, 0)) { syslog(LOG_ERR, "can't register on %s", nconf->nc_netid); } else { if (!svc_reg(transp, SM_PROG, SM_VERS, sm_prog_1, NULL)) syslog(LOG_ERR, "can't register %s SM_PROG service", nconf->nc_netid); } } else syslog(LOG_WARNING, "can't create %s services", nconf->nc_netid); if (registered == 0) { registered = 1; memset(&hints, 0, sizeof hints); hints.ai_flags = AI_PASSIVE; hints.ai_family = si.si_af; hints.ai_socktype = si.si_socktype; hints.ai_protocol = si.si_proto; if ((aicode = getaddrinfo(NULL, port_str, &hints, &res)) != 0) { syslog(LOG_ERR, "cannot get local address: %s", gai_strerror(aicode)); exit(1); } servaddr.buf = malloc(res->ai_addrlen); memcpy(servaddr.buf, res->ai_addr, res->ai_addrlen); servaddr.len = res->ai_addrlen; rpcb_set(SM_PROG, SM_VERS, nconf, &servaddr); xcreated++; freeaddrinfo(res); } } /* end while */ } /* * Clear out sockets after a failure to bind one of them, so that the * cycle of socket creation/binding can start anew. */ static void clearout_service(void) { int i; for (i = 0; i < sock_fdcnt; i++) { if (sock_fd[i] >= 0) { shutdown(sock_fd[i], SHUT_RDWR); close(sock_fd[i]); } } } static void usage(void) { fprintf(stderr, "usage: rpc.statd [-d] [-h ] [-p ]\n"); exit(1); } /* handle_sigchld ---------------------------------------------------------- */ /* Purpose: Catch SIGCHLD and collect process status Retruns: Nothing. Notes: No special action required, other than to collect the process status and hence allow the child to die: we only use child processes for asynchronous transmission of SM_NOTIFY to other systems, so it is normal for the children to exit when they have done their work. */ static void handle_sigchld(int sig __unused) { int pid, status; pid = wait4(-1, &status, WNOHANG, (struct rusage*)0); if (!pid) syslog(LOG_ERR, "Phantom SIGCHLD??"); else if (status == 0) { if (debug) syslog(LOG_DEBUG, "Child %d exited OK", pid); } else syslog(LOG_ERR, "Child %d failed with status %d", pid, WEXITSTATUS(status)); } /* * Out of memory, fatal */ void out_of_mem(void) { syslog(LOG_ERR, "out of memory"); exit(2); }