/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2015 Nexenta Systems, Inc. All rights reserved. */ /* * Copyright 2005 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ /* * University Copyright- Copyright (c) 1982, 1986, 1988 * The Regents of the University of California * All Rights Reserved * * University Acknowledgment- Portions of this document are derived from * software developed by the University of California, Berkeley, and its * contributors. */ /* * Copyright (c) 2012 by Delphix. All rights reserved. */ #ifndef _SM_STATD_H #define _SM_STATD_H #ifdef __cplusplus extern "C" { #endif /* Limit defines */ #define SM_DIRECTORY_MODE 00755 #define MAX_HASHSIZE 50 #define SM_RPC_TIMEOUT 15 #define PERCENT_MINJOIN 10 #define MAX_FDS 256 #define MAX_THR 25 #define INC_DELAYTIME 30 #define MAX_DELAYTIME 300 #define SM_CLTS_TIMEOUT 15 /* max strlen of /statmon/state, /statmon/sm.bak, /statmon/sm */ #define SM_MAXPATHLEN 17 /* Increment size for realloc of array host_name */ #define HOST_NAME_INCR 5 /* supported address family names in /var/statmon symlinks */ #define SM_ADDR_IPV4 "ipv4" #define SM_ADDR_IPV6 "ipv6" /* Supported for readdir_r() */ #define MAXDIRENT (sizeof (struct dirent) + _POSIX_PATH_MAX + 1) /* Structure entry for monitor table (mon_table) */ struct mon_entry { mon id; /* mon information: mon_name, my_id */ struct mon_entry *prev; /* Prev ptr to prev entry in hash */ struct mon_entry *nxt; /* Next ptr to next entry in hash */ }; typedef struct mon_entry mon_entry; /* Structure entry for record (record_table) and recovery (recov_q) tables */ struct name_entry { char *name; /* name of host */ int count; /* count of entries */ struct name_entry *prev; /* Prev ptr to prev entry in hash */ struct name_entry *nxt; /* Next ptr to next entry in hash */ }; typedef struct name_entry name_entry; /* Structure for passing arguments into thread send_notice */ typedef struct moninfo { mon id; /* Monitor information */ int state; /* Current state */ } moninfo_t; /* Structure entry for hash tables */ typedef struct sm_hash { union { struct mon_entry *mon_hdptr; /* Head ptr for mon_table */ name_entry *rec_hdptr; /* Head ptr for record_table */ name_entry *recov_hdptr; /* Head ptr for recov_q */ } smhd_t; mutex_t lock; /* Lock to protect each list head */ } sm_hash_t; #define sm_monhdp smhd_t.mon_hdptr #define sm_rechdp smhd_t.rec_hdptr #define sm_recovhdp smhd_t.recov_hdptr /* Structure entry for address list in name-to-address entry */ typedef struct addr_entry { struct addr_entry *next; struct netobj ah; sa_family_t family; } addr_entry_t; /* Structure entry for name-to-address translation table */ typedef struct name_addr_entry { struct name_addr_entry *next; char *name; struct addr_entry *addresses; } name_addr_entry_t; /* Hash tables for each of the in-cache information */ extern sm_hash_t mon_table[MAX_HASHSIZE]; /* Global variables */ extern mutex_t crash_lock; /* lock for die and crash variables */ extern int die; /* Flag to indicate that an SM_CRASH */ /* request came in & to stop threads cleanly */ extern int in_crash; /* Flag to single thread sm_crash requests. */ extern int regfiles_only; /* Flag to indicate symlink use in statmon */ extern mutex_t sm_trylock; /* Lock to single thread sm_try */ /* * The only established lock precedence here is: * * thr_rwlock > name_addrlock */ extern mutex_t name_addrlock; /* Locks all entries of name-to-addr table */ extern rwlock_t thr_rwlock; /* Reader/writer lock for requests coming in */ extern cond_t retrywait; /* Condition to wait before starting retry */ extern boolean_t in_merges; /* Flag to indicate the host_name is not */ /* populated yet */ extern mutex_t merges_lock; /* Lock for in_merges variable */ extern cond_t merges_cond; /* Condition variable for in_merges */ extern char STATE[MAXPATHLEN], CURRENT[MAXPATHLEN]; extern char BACKUP[MAXPATHLEN]; extern int LOCAL_STATE; /* * Hash functions for monitor and record hash tables. * Functions are hashed based on first 2 letters and last 2 letters of name. * If only 1 letter in name, then, hash only on 1 letter. */ #define SMHASH(name, key) { \ int l; \ key = *name; \ if ((l = strlen(name)) != 1) \ key |= ((*(name+(l-1)) << 24) | (*(name+1) << 16) | \ (*(name+(l-2)) << 8)); \ key = key % MAX_HASHSIZE; \ } extern int debug; /* Prints out debug information if set. */ extern char hostname[MAXHOSTNAMELEN]; /* * These variables will be used to store all the * alias names for the host, as well as the -a * command line hostnames. */ extern char **host_name; /* store -a opts */ extern int host_name_count; extern int addrix; /* # of -a entries */ /* * The following 2 variables are meaningful * only under a HA configuration. */ extern char **path_name; /* store -p opts */ extern int pathix; /* # of -p entries */ /* Function prototypes used in program */ extern int create_file(char *name); extern void delete_file(char *name); extern void record_name(char *name, int op); extern void sm_crash(void); extern void statd_init(void); extern void merge_hosts(void); extern void merge_ips(void); extern CLIENT *create_client(char *, int, int, char *, struct timeval *); extern char *xmalloc(unsigned); /* * RPC service functions, slightly different here than the * generated ones in sm_inter.h */ extern void nsmaddrproc1_reg(void *, void *); extern void sm_stat_svc(void *, void *); extern void sm_mon_svc(void *, void *); extern void sm_unmon_svc(void *, void *); extern void sm_unmon_all_svc(void *, void *); extern void sm_simu_crash_svc(void *, void *); extern void sm_notify_svc(void *, void *); extern void sm_inithash(void); extern void copydir_from_to(char *from_dir, char *to_dir); extern int str_cmp_unqual_hostname(char *, char *); extern void record_addr(char *name, sa_family_t family, struct netobj *ah); extern int is_symlink(char *file); extern int create_symlink(char *todir, char *rname, char *lname); extern int str_cmp_address_specifier(char *specifier1, char *specifier2); #ifdef __cplusplus } #endif #endif /* _SM_STATD_H */
