/*
- * support/nfs/rpcmisc.c
+ * Miscellaneous functions for RPC service startup and shutdown.
*
- * Miscellaneous functions for RPC startup and shutdown.
* This code is partially snarfed from rpcgen -s tcp -s udp,
- * partly written by Mark Shand, Donald Becker, and Rick
+ * partly written by Mark Shand, Donald Becker, and Rick
* Sladkey. It was tweaked slightly by Olaf Kirch to be
* usable by both unfsd and mountd.
*
* as is, with no warranty expressed or implied.
*/
-#include "config.h"
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <sys/types.h>
#include <sys/ioctl.h>
#include <time.h>
#include "nfslib.h"
-static void closedown(int sig);
-int makesock(int port, int proto);
+#if SIZEOF_SOCKLEN_T - 0 == 0
+#define socklen_t int
+#endif
#define _RPCSVC_CLOSEDOWN 120
int _rpcpmstart = 0;
int _rpcfdtype = 0;
int _rpcsvcdirty = 0;
+static void
+closedown(int sig)
+{
+ (void) signal(sig, closedown);
+
+ if (_rpcsvcdirty == 0) {
+ static int size;
+ int i, openfd;
+
+ if (_rpcfdtype == SOCK_DGRAM)
+ exit(0);
+
+ if (size == 0)
+ size = getdtablesize();
+
+ for (i = 0, openfd = 0; i < size && openfd < 2; i++)
+ if (FD_ISSET(i, &svc_fdset))
+ openfd++;
+ if (openfd <= 1)
+ exit(0);
+ }
+
+ (void) alarm(_RPCSVC_CLOSEDOWN);
+}
+
+/*
+ * Create listener socket for a given port
+ *
+ * Return an open network socket on success; otherwise return -1
+ * if some error occurs.
+ */
+static int
+makesock(int port, int proto)
+{
+ struct sockaddr_in sin;
+ int sock, sock_type, val;
+
+ sock_type = (proto == IPPROTO_UDP) ? SOCK_DGRAM : SOCK_STREAM;
+ sock = socket(AF_INET, sock_type, proto);
+ if (sock < 0) {
+ xlog(L_FATAL, "Could not make a socket: %s",
+ strerror(errno));
+ return -1;
+ }
+ memset((char *) &sin, 0, sizeof(sin));
+ sin.sin_family = AF_INET;
+ sin.sin_addr.s_addr = htonl(INADDR_ANY);
+ sin.sin_port = htons(port);
+
+ val = 1;
+ if (proto == IPPROTO_TCP)
+ if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
+ &val, sizeof(val)) < 0)
+ xlog(L_ERROR, "setsockopt failed: %s",
+ strerror(errno));
+
+ if (bind(sock, (struct sockaddr *) &sin, sizeof(sin)) == -1) {
+ xlog(L_FATAL, "Could not bind name to socket: %s",
+ strerror(errno));
+ return -1;
+ }
+
+ return sock;
+}
+
void
-rpc_init(char *name, int prog, int vers, void (*dispatch)(), int defport)
+rpc_init(char *name, int prog, int vers,
+ void (*dispatch)(struct svc_req *, register SVCXPRT *),
+ int defport)
{
struct sockaddr_in saddr;
SVCXPRT *transp;
int sock;
- int asize;
+ socklen_t asize;
asize = sizeof(saddr);
sock = 0;
- if (getsockname(0, (struct sockaddr *) &saddr, &asize) == 0) {
- int ssize = sizeof (int);
- _rpcfdtype = 0;
- if (saddr.sin_family != AF_INET)
- xlog(L_FATAL, "init: stdin is bound to non-inet addr");
+ if (getsockname(0, (struct sockaddr *) &saddr, &asize) == 0
+ && saddr.sin_family == AF_INET) {
+ socklen_t ssize = sizeof(int);
+ int fdtype = 0;
if (getsockopt(0, SOL_SOCKET, SO_TYPE,
- (char *)&_rpcfdtype, &ssize) == -1)
+ (char *)&fdtype, &ssize) == -1)
xlog(L_FATAL, "getsockopt failed: %s", strerror(errno));
- _rpcpmstart = 1;
- } else {
+ /* inetd passes a UDP socket or a listening TCP socket.
+ * listen will fail on a connected TCP socket(passed by rsh).
+ */
+ if (!(fdtype == SOCK_STREAM && listen(0,5) == -1)) {
+ _rpcfdtype = fdtype;
+ _rpcpmstart = 1;
+ }
+ }
+ if (!_rpcpmstart) {
pmap_unset(prog, vers);
sock = RPC_ANYSOCK;
}
if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_DGRAM)) {
static SVCXPRT *last_transp = NULL;
-
- if (_rpcfdtype == 0) {
+
+ if (_rpcpmstart == 0) {
if (last_transp
&& (!defport || defport == last_transp->xp_port)) {
transp = last_transp;
}
if (defport == 0)
sock = RPC_ANYSOCK;
- else if ((sock = makesock(defport, IPPROTO_UDP)) < 0) {
- xlog(L_FATAL, "%s: cannot make a UDP socket\n",
- name);
- }
+ else
+ sock = makesock(defport, IPPROTO_UDP);
}
if (sock == RPC_ANYSOCK)
sock = svcudp_socket (prog, 1);
if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_STREAM)) {
static SVCXPRT *last_transp = NULL;
- if (_rpcfdtype == 0) {
+ if (_rpcpmstart == 0) {
if (last_transp
&& (!defport || defport == last_transp->xp_port)) {
transp = last_transp;
}
if (defport == 0)
sock = RPC_ANYSOCK;
- else if ((sock = makesock(defport, IPPROTO_TCP)) < 0) {
- xlog(L_FATAL, "%s: cannot make a TCP socket\n",
- name);
- }
+ else
+ sock = makesock(defport, IPPROTO_TCP);
}
if (sock == RPC_ANYSOCK)
sock = svctcp_socket (prog, 1);
}
if (_rpcpmstart) {
- signal (SIGALRM, closedown);
- alarm (_RPCSVC_CLOSEDOWN);
- }
-}
-
-static void closedown(sig)
-int sig;
-{
- (void) signal(sig, closedown);
- if (_rpcsvcdirty == 0) {
- static int size;
- int i, openfd;
-
- if (_rpcfdtype == SOCK_DGRAM)
- exit(0);
- if (size == 0) {
- size = getdtablesize();
- }
- for (i = 0, openfd = 0; i < size && openfd < 2; i++)
- if (FD_ISSET(i, &svc_fdset))
- openfd++;
- if (openfd <= 1)
- exit(0);
- }
- (void) alarm(_RPCSVC_CLOSEDOWN);
-}
-
-int makesock(int port, int proto)
-{
- struct sockaddr_in sin;
- int s;
- int sock_type;
- int val;
-
- sock_type = (proto == IPPROTO_UDP) ? SOCK_DGRAM : SOCK_STREAM;
- s = socket(AF_INET, sock_type, proto);
- if (s < 0) {
- xlog(L_FATAL, "Could not make a socket: %s\n",
- strerror(errno));
- return (-1);
- }
- memset((char *) &sin, 0, sizeof(sin));
- sin.sin_family = AF_INET;
- sin.sin_addr.s_addr = INADDR_ANY;
- sin.sin_port = htons(port);
-
- val = 1;
- if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)) < 0)
- xlog(L_ERROR, "setsockopt failed: %s\n", strerror(errno));
-
-#if 0
- /* I was told it didn't work with gigabit ethernet.
- Don't bothet with it. H.J. */
-#ifdef SO_SNDBUF
- {
- int sblen, rblen;
-
- /* 1024 for rpc & transport overheads */
- sblen = rblen = socksz + 1024;
- if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sblen, sizeof sblen) < 0 ||
- setsockopt(s, SOL_SOCKET, SO_RCVBUF, &rblen, sizeof rblen) < 0)
- xlog(L_ERROR, "setsockopt failed: %s\n", strerror(errno));
- }
-#endif /* SO_SNDBUF */
-#endif
-
- if (bind(s, (struct sockaddr *) &sin, sizeof(sin)) == -1) {
- xlog(L_FATAL, "Could not bind name to socket: %s\n",
- strerror(errno));
- return (-1);
- }
- return (s);
-}
-
-
-/* Log an incoming call. */
-void
-rpc_logcall(struct svc_req *rqstp, char *xname, char *arg)
-{
- char buff[1024];
- int buflen=sizeof(buff);
- int len;
- char *sp;
- int i;
-
- if (!xlog_enabled(D_CALL))
- return;
-
- sp = buff;
- switch (rqstp->rq_cred.oa_flavor) {
- case AUTH_NULL:
- sprintf(sp, "NULL");
- break;
- case AUTH_UNIX: {
- struct authunix_parms *unix_cred;
- struct tm *tm;
-
- unix_cred = (struct authunix_parms *) rqstp->rq_clntcred;
- tm = localtime(&unix_cred->aup_time);
- snprintf(sp, buflen, "UNIX %d/%d/%d %02d:%02d:%02d %s %d.%d",
- tm->tm_year, tm->tm_mon + 1, tm->tm_mday,
- tm->tm_hour, tm->tm_min, tm->tm_sec,
- unix_cred->aup_machname,
- unix_cred->aup_uid,
- unix_cred->aup_gid);
- sp[buflen-1] = 0;
- len = strlen(sp);
- sp += buflen;
- buflen -= len;
- if ((int) unix_cred->aup_len > 0) {
- snprintf(sp, buflen, "+%d", unix_cred->aup_gids[0]);
- sp[buflen-1] = 0;
- len = strlen(sp);
- sp += buflen;
- buflen -= len;
- for (i = 1; i < unix_cred->aup_len; i++) {
- snprintf(sp, buflen, ",%d",
- unix_cred->aup_gids[i]);
- sp[buflen-1] = 0;
- len = strlen(sp);
- sp += buflen;
- buflen -= len;
- }
- }
- }
- break;
- default:
- sprintf(sp, "CRED %d", rqstp->rq_cred.oa_flavor);
+ signal(SIGALRM, closedown);
+ alarm(_RPCSVC_CLOSEDOWN);
}
- xlog(D_CALL, "%s [%s]\n\t%s\n", xname, buff, arg);
}
projects / nfs-utils.git / blobdiff