bozo: bosserver man page updates

[openafs.git] / src / bozo / bosserver.c

diff --git a/src/bozo/bosserver.c b/src/bozo/bosserver.c
index d896a6e..3861689 100644 (file)
--- a/src/bozo/bosserver.c
+++ b/src/bozo/bosserver.c
@@ -58,6 +58,7 @@ FILE *bozo_logFile;
 const char *DoCore;
 int DoLogging = 0;
 int DoSyslog = 0;
+const char *DoPidFiles = NULL;
 #ifndef AFS_NT40_ENV
 int DoSyslogFacility = LOG_DAEMON;
 #endif
@@ -110,6 +111,10 @@ bozo_ReBozo(void)
     if (DoLogging) {
        status |= BOSEXIT_LOGGING_FLAG;
     }
+    /* if rxbind is set, pass "-rxbind" to new bosserver */
+    if (rxBind) {
+       status |= BOSEXIT_RXBIND_FLAG;
+    }
     exit(status);
 #else
     /* exec new bosserver process */
@@ -129,6 +134,11 @@ bozo_ReBozo(void)
        argv[i] = "-log";
        i++;
     }
+    /* if rxbind is set, pass "-rxbind" to new bosserver */
+    if (rxBind) {
+       argv[i] = "-rxbind";
+       i++;
+    }
 #ifndef AFS_NT40_ENV
     /* if syslog logging is on, pass "-syslog" to new bosserver */
     if (DoSyslog) {
@@ -151,6 +161,8 @@ bozo_ReBozo(void)
        close(i);
     }
 
+    unlink(AFSDIR_SERVER_BOZRXBIND_FILEPATH);
+
     execv(argv[0], argv);      /* should not return */
     _exit(1);
 #endif /* AFS_NT40_ENV */
@@ -705,6 +717,118 @@ background(void)
 #endif /* ! AFS_NT40_ENV */
 #endif
 
+static char *
+make_pid_filename(char *ainst, char *aname)
+{
+    char *buffer = NULL;
+    int length;
+
+    length = strlen(DoPidFiles) + strlen(ainst) + 6;
+    if (aname && *aname) {
+       length += strlen(aname) + 1;
+    }
+    buffer = malloc(length * sizeof(char));
+    if (!buffer) {
+       if (aname) {
+           bozo_Log("Failed to alloc pid filename buffer for %s.%s.\n",
+                    ainst, aname);
+       } else {
+           bozo_Log("Failed to alloc pid filename buffer for %s.\n", ainst);
+       }
+    } else {
+       if (aname && *aname) {
+           snprintf(buffer, length, "%s/%s.%s.pid", DoPidFiles, ainst,
+                    aname);
+       } else {
+           snprintf(buffer, length, "%s/%s.pid", DoPidFiles, ainst);
+       }
+    }
+    return buffer;
+}
+
+/**
+ * Write a file containing the pid of the named process.
+ *
+ * @param ainst instance name
+ * @param aname sub-process name of the instance, may be null
+ * @param apid  process id of the newly started process
+ *
+ * @returns status
+ */
+int
+bozo_CreatePidFile(char *ainst, char *aname, pid_t apid)
+{
+    int code = 0;
+    char *pidfile = NULL;
+    FILE *fp;
+
+    pidfile = make_pid_filename(ainst, aname);
+    if (!pidfile) {
+       return ENOMEM;
+    }
+    if ((fp = fopen(pidfile, "w")) == NULL) {
+       bozo_Log("Failed to open pidfile %s; errno=%d\n", pidfile, errno);
+       free(pidfile);
+       return errno;
+    }
+    if (fprintf(fp, "%ld\n", afs_printable_int32_ld(apid)) < 0) {
+       code = errno;
+    }
+    if (fclose(fp) != 0) {
+       code = errno;
+    }
+    free(pidfile);
+    return code;
+}
+
+/**
+ * Clean a pid file for a process which just exited.
+ *
+ * @param ainst instance name
+ * @param aname sub-process name of the instance, may be null
+ *
+ * @returns status
+ */
+int
+bozo_DeletePidFile(char *ainst, char *aname)
+{
+    char *pidfile = NULL;
+    pidfile = make_pid_filename(ainst, aname);
+    if (pidfile) {
+       unlink(pidfile);
+       free(pidfile);
+    }
+    return 0;
+}
+
+/**
+ * Create the rxbind file of this bosserver.
+ *
+ * @param host  bind address of this server
+ *
+ * @returns status
+ */
+void
+bozo_CreateRxBindFile(afs_uint32 host)
+{
+    char buffer[16];
+    FILE *fp;
+
+    if (host == htonl(INADDR_ANY)) {
+       host = htonl(0x7f000001);
+    }
+
+    afs_inet_ntoa_r(host, buffer);
+    bozo_Log("Listening on %s:%d\n", buffer, AFSCONF_NANNYPORT);
+    if ((fp = fopen(AFSDIR_SERVER_BOZRXBIND_FILEPATH, "w")) == NULL) {
+       bozo_Log("Unable to open rxbind address file: %s, code=%d\n",
+                AFSDIR_SERVER_BOZRXBIND_FILEPATH, errno);
+    } else {
+       fprintf(fp, "%s\n", buffer);
+       fclose(fp);
+    }
+}
+
 /* start a process and monitor it */
 
 #include "AFS_component_version_number.c"
@@ -849,6 +973,10 @@ main(int argc, char **argv, char **envp)
                printf("Invalid audit interface '%s'\n", interface);
                exit(1);
            }
+       } else if (strncmp(argv[code], "-pidfiles=", 10) == 0) {
+           DoPidFiles = (argv[code]+10);
+       } else if (strncmp(argv[code], "-pidfiles", 9) == 0) {
+           DoPidFiles = AFSDIR_BOSCONFIG_DIR;
        }
        else {
 
@@ -860,16 +988,20 @@ main(int argc, char **argv, char **envp)
                   "[-audit-interafce <file|sysvmq> (default is file)] "
                   "[-rxmaxmtu <bytes>] [-rxbind] [-allow-dotted-principals]"
                   "[-syslog[=FACILITY]] "
+                  "[-restricted] "
                   "[-enable_peer_stats] [-enable_process_stats] "
                   "[-cores=<none|path>] \n"
+                  "[-pidfiles[=path]] "
                   "[-nofork] " "[-help]\n");
 #else
            printf("Usage: bosserver [-noauth] [-log] "
                   "[-auditlog <log path>] "
                   "[-audit-interafce <file|sysvmq> (default is file)] "
                   "[-rxmaxmtu <bytes>] [-rxbind] [-allow-dotted-principals]"
+                  "[-restricted] "
                   "[-enable_peer_stats] [-enable_process_stats] "
                   "[-cores=<none|path>] \n"
+                  "[-pidfiles[=path]] "
                   "[-help]\n");
 #endif
            fflush(stdout);
@@ -1042,6 +1174,8 @@ main(int argc, char **argv, char **envp)
        exit(code);
     }
 
+    bozo_CreateRxBindFile(host);       /* for local scripts */
+
     /* opened the cell databse */
     bozo_confdir = tdir;
 
@@ -1051,6 +1185,10 @@ main(int argc, char **argv, char **envp)
     afsconf_SetNoAuthFlag(tdir, noAuth);
     afsconf_BuildServerSecurityObjects(tdir, &securityClasses, &numClasses);
 
+    if (DoPidFiles) {
+       bozo_CreatePidFile("bosserver", NULL, getpid());
+    }
+
     /* Disable jumbograms */
     rx_SetNoJumbo();