/*
- * $Id: cnid_metad.c,v 1.22 2009-11-16 02:04:47 didg Exp $
- *
* Copyright (C) Joerg Lenneis 2003
- * All Rights Reserved. See COPYING.
+ * Copyright (C) Frank Lahm 2009, 2010
*
+ * All Rights Reserved. See COPYING.
*/
/*
Result:
via TCP socket
4. afpd -------> cnid_dbd
+
+ cnid_metad and cnid_dbd have been converted to non-blocking IO in 2010.
*/
#include <errno.h>
#include <string.h>
#include <signal.h>
-#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
-#endif
-#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
-#endif
-#ifdef HAVE_SYS_UIO_H
#include <sys/uio.h>
-#endif
#include <sys/un.h>
#define _XPG4_2 1
#include <sys/socket.h>
#include <atalk/logger.h>
#include <atalk/cnid_dbd_private.h>
#include <atalk/paths.h>
+#include <atalk/volinfo.h>
-#include "db_param.h"
#include "usockfd.h"
#define DBHOME ".AppleDB"
#define DEFAULTPORT "4700"
struct server {
- char *name;
+ struct volinfo *volinfo;
pid_t pid;
time_t tm; /* When respawned last */
int count; /* Times respawned in the last TESTTIME secondes */
daemon_exit(0);
}
-static struct server *test_usockfn(char *dir)
+static struct server *test_usockfn(struct volinfo *volinfo)
{
int i;
for (i = 0; i < MAXVOLS; i++) {
- if (srv[i].name && !strcmp(srv[i].name, dir)) {
+ if ((srv[i].volinfo) && (strcmp(srv[i].volinfo->v_path, volinfo->v_path) == 0)) {
return &srv[i];
}
}
}
/* -------------------- */
-static int maybe_start_dbd(char *dbdpn, char *dbdir, char *usockfn)
+static int maybe_start_dbd(char *dbdpn, struct volinfo *volinfo)
{
pid_t pid;
struct server *up;
time_t t;
char buf1[8];
char buf2[8];
+ char *volpath = volinfo->v_path;
- LOG(log_maxdebug, logtype_cnid, "maybe_start_dbd: dbdir: '%s', UNIX socket file: '%s'",
- dbdir, usockfn);
+ LOG(log_debug, logtype_cnid, "maybe_start_dbd: Volume: \"%s\"", volpath);
- up = test_usockfn(dbdir);
+ up = test_usockfn(volinfo);
if (up && up->pid) {
/* we already have a process, send our fd */
if (send_cred(up->control_fd, rqstfd) < 0) {
return 0;
}
- LOG(log_maxdebug, logtype_cnid, "maybe_start_dbd: no cnid_dbd for that volume yet. Starting one ...");
+ LOG(log_maxdebug, logtype_cnid, "maybe_start_dbd: no cnid_dbd for that volume yet");
time(&t);
if (!up) {
/* find an empty slot */
for (i = 0; i < MAXVOLS; i++) {
- if ( !srv[i].name ) {
+ if (srv[i].volinfo == NULL) {
up = &srv[i];
+ up->volinfo = volinfo;
+ retainvolinfo(volinfo);
up->tm = t;
up->count = 0;
- up->name = strdup(dbdir);
break;
}
}
LOG(log_error, logtype_cnid, "no free slot for cnid_dbd child. Configured maximum: %d. Do you have so many volumes?", MAXVOLS);
return -1;
}
- }
- else {
+ } else {
/* we have a slot but no process, check for respawn too fast */
if ( (t < (up->tm + TESTTIME)) /* We're in the respawn time window */
&&
/* there's a pb with the db inform child
* it will run recover, delete the db whatever
*/
- LOG(log_error, logtype_cnid, "try with -d %s", up->name);
- ret = execlp(dbdpn, dbdpn, "-d", dbdir, buf1, buf2, logconfig, NULL);
+ LOG(log_error, logtype_cnid, "try with -d %s", up->volinfo->v_path);
+ ret = execlp(dbdpn, dbdpn, "-d", volpath, buf1, buf2, logconfig, NULL);
}
else {
- ret = execlp(dbdpn, dbdpn, dbdir, buf1, buf2, logconfig, NULL);
- }
- if (ret < 0) {
- LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
- daemon_exit(0);
+ ret = execlp(dbdpn, dbdpn, volpath, buf1, buf2, logconfig, NULL);
}
+ /* Yikes! We're still here, so exec failed... */
+ LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
+ daemon_exit(0);
}
/*
* Parent.
}
/* ------------------ */
-static int set_dbdir(char *dbdir, int len)
+static int set_dbdir(char *dbdir)
{
+ int len;
struct stat st;
- if (!len)
- return -1;
+ len = strlen(dbdir);
if (stat(dbdir, &st) < 0 && mkdir(dbdir, 0755) < 0) {
LOG(log_error, logtype_cnid, "set_dbdir: mkdir failed for %s", dbdir);
/* ------------------ */
int main(int argc, char *argv[])
{
- char dbdir[MAXPATHLEN + 1];
+ char volpath[MAXPATHLEN + 1];
int len, actual_len;
pid_t pid;
int status;
char *dbdpn = _PATH_CNID_DBD;
char *host = DEFAULTHOST;
char *port = DEFAULTPORT;
- struct db_param *dbp;
int i;
int cc;
uid_t uid = 0;
char *loglevel = NULL;
char *logfile = NULL;
sigset_t set;
+ struct volinfo *volinfo;
set_processname("cnid_metad");
}
/* Check PID lockfile and become a daemon */
- switch(server_lock("cnid_metad", _PATH_CNID_METAD_LOCK, 0)) {
+ switch(server_lock("cnid_metad", _PATH_CNID_METAD_LOCK, debug)) {
case -1: /* error */
daemon_exit(EXITERR_SYS);
case 0: /* child */
if (rqstfd <= 0)
continue;
- /* TODO: Check out read errors, broken pipe etc. in libatalk. Is
- SIGIPE ignored there? Answer: Ignored for dsi, but not for asp ... */
- ret = read(rqstfd, &len, sizeof(int));
+ ret = readt(rqstfd, &len, sizeof(int), 1, 4);
+
if (!ret) {
/* already close */
goto loop_end;
goto loop_end;
}
- actual_len = read(rqstfd, dbdir, len);
+ actual_len = readt(rqstfd, volpath, len, 1, 5);
if (actual_len < 0) {
LOG(log_severe, logtype_cnid, "Read(2) error : %s", strerror(errno));
goto loop_end;
LOG(log_error, logtype_cnid, "error/short read (dir): %s", strerror(errno));
goto loop_end;
}
- dbdir[len] = '\0';
+ volpath[len] = '\0';
- if (set_dbdir(dbdir, len) < 0) {
+ /* Load .volinfo file */
+ if ((volinfo = allocvolinfo(volpath)) == NULL) {
+ LOG(log_severe, logtype_cnid, "allocvolinfo: %s", strerror(errno));
goto loop_end;
}
- if ((dbp = db_param_read(dbdir, METAD)) == NULL) {
- LOG(log_error, logtype_cnid, "Error reading config file");
+ if (set_dbdir(volinfo->v_dbpath) < 0) {
goto loop_end;
}
- maybe_start_dbd(dbdpn, dbdir, dbp->usock_file);
+
+ maybe_start_dbd(dbdpn, volinfo);
+
+ (void)closevolinfo(volinfo);
loop_end:
close(rqstfd);
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